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2023 Port Orchard Stormwater and Watersheds Comprehensive Plan- •'� �E a '� +L C .3.� - r Aw .sere46 r .■ -� o--- Y y .y ei9: I This StormwaterandWatersheds Comprehensive Plan (Plan) was produced through the combined efforts, ideas and contributions of the following City of Port Orchard staff, appointed and elected officials, and consultants. Photos courtesy of Herrera staff. Mayor City Council Planning Commission Rob Putaansu Shawn Cucciardi Annette Stewart Jay Roasapepe Stephanie Bailey Scott Diener Tyler McKlosky John Clauson Paul Fontenot Cindy Lucarelli David Bernstein Fred Chang Bek Ashby Mark Trenary Joe Morrison City Staff Zack Holt ........................ Stormwater Permit Manager Tony Lang ...................... Director of Public Works Chris Hammer ................. City Engineer JackiBrown................... Utility Manager Nick Bond ...................... Director of Community Development IanSmith....................... Engineer Jim Fisk ......................... Senior Planner Darren Padroza................ GIS/Inspections 01 Herrera Environmental Consultants, Inc. Matthew Fontaine........... Project Manager Mindy Fohn.................... Watershed Planning Rebecca Dugopolski ........ NPDES Permit Specialist Julianne Chechanover ...... Staff Engineer Katie Wingrove................. Geographic Information Systems Lead Brian Busiek .....................Capital Project Planning Jonathan Waggoner.......... Capital Project Planning Brianna Blaud................... Capital Project Planning Stacy Vayanos................... Graphic Design Reid Middleton, Inc. Mark Davis ........................ Engineer GeoEngineers Joe Callaghan .................... Biologist Adam Wright ..................... Biologist FCS Group John Ghilarducci............... Principal Take Aaker....................... Project Manager Luke Rosson.................... Financial Analyst 3 01 INTRODUCTION 10 Stormwater Runoff and Effects 11 Purpose of this Plan 12 Stormwater Management Mission Statement 13 Long-term Goals 16 Opportunities and Challenges 17 Plan Development 02 BACKGROUND 18 City Watersheds 22 City Stormwater System 24 Stormwater Impacts on Watersheds 26 Applicable Policies and Regulations 28 Program Accomplishments 30 Planning for Future Development 32 Climate Change 03 CAPITAL IMPROVEMENT PROGRAM (CIP) 34 Capital Improvement Program (CIP) 35 Problem and Project Identification 36 Project Prioritization 04 STORMWATER MANAGEMENT PROGRAM EVALUATION AND RECOMMENDATIONS 38 Levels of Service 40 Recommendations 4 05 WATERSHED PLANNING 48 City Watersheds 52 Lower Blackjack Creek Watershed 06 PLAN IMPLEMENTATION 54 CIP Plan Implementation 56 Staffing and Funding Needs 58 Financial Analysis Summary 60 Linkages to Other Programs 61 Pursuit of Outside Funding ■ 07 REFERENCE 08 APPENDICES A Appendix A - Stormwater Management Program Staffing and Funding Matrix B Appendix B - Capital Improvement Program Summary Sheets, and Project Prioritization C Appendix C - Stormwater Management Action Plan D Appendix D - Financial Analysis 5 TABLE 1 Watershed Stormwater Impact Rating 24 TABLE 2 Climate Change Impacts 33 TABLE 3 Prioritized Projects and Ranking 36 TABLE 4 Summary of Major Watershed Habitat Conditions 50 44 for Salmon and Forage Fish TABLE 5 Capital Improvement Program Implementation Schedule 55 41111111111111111111 TABLE 6 Staff FTE Summary by Year and Tier 57 TABLE 7 Funding Summary by Year and Tier 57 TABLE 8 Monthly Rate per Impervious Surface Unit by Level of Service 58 TABLE 9 Capital Facility Charge by Level of Service 59 2 FIGURE 1 City Watersheds 19 FIGURE 2 Presence of Key Stream and Nearshore Fish Species in City 20 of Port Orchard Watersheds FIGURE 3 Stormwater Infrastructure 23 FIGURE 4 Stormwater Influence Upon Watersheds 25 FIGURE 5 Projected 100 Year Marine Flood Extent Under Sea Level 32 Rise Scenario FIGURE 6 Top 10 Capital Projects 37 FIGURE 7 Nearshore and Major Watershed Stream Habitat Condition 51 FIGURE 8 Lower Blackjack Creek Catchment C 53 FIGURE 9 Levels of Service and Full Time Equivalents 56 7 BMP Best management practice CFC Capital Facilities Charge CTE Career & Technical Education CIP Capital improvement program City City of Port Orchard CMMS Computerized maintenance management system Ecology Washington State Department of Ecology ESA Federal Endangered Species Act FTE Full Time Equivalent GIS Geographic information systems GMA Washington State Growth Management Act IDDE Illicit discharge detection and elimination ISU Impervious Surface Unit LID Low Impact Development MS4 Municipal separate storm sewer system NPDES National Pollutant Discharge Elimination System 0&M Operations and Maintenance 8 OFM Office of Financial Management Permit Western Washington Phase II Municipal Stormwater Permit PMC Port Orchard Municipal Code QAPP Quality Assurance Project Plan RCW Revised Code of Washington SAM Stormwater Action Monitoring SMAP Stormwater Management Action Planning STEM Science, technology, engineering, and math TMDL Total Maximum Daily Load UGA Urban Growth Area UIC Underground Injection Control WAC Washington Administrative Code WRIA Water Resource Inventory Area WREC Watershed Restoration and Enhancement WSPER West Sound Partners for Ecosystem Recovery WSSOG West Sound Stormwater Outreach Group 9 Stormwater Runoff and Effects a The City of Port Orchard (City) operates a system of drainage pipes and ditches to convey stormwaterrunoffto receiving waters including streams and Sinclair Inlet. The drainage system prevents and minimizes damage to private properties, city streets, and other infrastructure. As rain falls and travels across hard surfaces, such as roofs, yards, and streets, pollutants are picked up and carried to receiving waters. The City is faced with the challenge to convey runoff safely, while minimizing adverse high -flow impacts (erosion, flooding, and sediment deposition) and water quality degradation to receiving waters. In 2008, the City established the storm drainage utility (Utility) to create a funding source to address stormwater and receiving water management issues citywide. State and federal regulations related to stormwater have evolved since 2007, when the City was issued its first National Pollutant Discharge Elimination System (NPDES) Western Washington Phase II Stormwater Permit (Permit) from the Washington Department of Ecology (Ecology), leading to more stringent requirements for implementing projects, programs, and maintenance. M Watershed signage, City of Port Orchard Purpose of this Plan City water resources include freshwater streams, marine water shorelines and estuaries, upland wetlands, and aquifers underground. These waters support aquatic wildlife, terrestrial wildlife, and people, in the form of recreation and drinking water. A watershed is the area of land where surface water flows to a receiving water body., supporting salmon in a stream, where children play at the beach, or the nearshore environment nourishing shellfish and forage fish. The City has chosen to develop and implement its first surface and stormwater comprehensive plan with a focus on watersheds spanning the landscape and stormwater influence on water resources. This approach recognizes the ecosystem function and value of receiving waters and maps out a plan to accommodate future growth, correct existing flooding problems, involve the public, preserve functioning habitat, and enhance habitat where opportunities are found. This Stormwater and Watersheds Comprehensive Plan (Plan) sets a course for stormwater programs and capital proj ects for years to come and addresses current and anticipated regulatory requirements, future development, existing flooding and water quality concerns, infrastructure maintenance and management, and the resources needed for the City to fully implement this Plan. Stormwater Management Mission Statement The mission of the stormwater management program is to regulate and manage use ofthe City's municipal separate storm sewer system (MS4) asrequiredbythe City'sNPDESpermitwhileconscientiously managing and protecting surface and receiving waters for public health and enjoyment. r 111 • b 1 _ 1 5 Long-term Goals All functions performed or influenced by the stormwater management program can be divided into ten major elements. City staff developed goals for each program element. These goals guide the City during planning and implementation of this Plan. r A��` � '• ' 7-1■ "Z�, N sit IpIr* 4a r Long-term Goals FLOOD REDUCTION Conveyanceinfrastructure that meets the Public Works Engineering Standards (City Standards) (convey the 100-yr return period flow; 50-yr return period flow if the 100-yr overflow does not threaten buildings and The City's tidally influenced stormwater infrastructure is resilient to tidal fluctuation including projected sea level rise. The City has a complete understanding of system deficiencies and a plan to address those deficiencies that is balanced with available funding. GROUND AND SURFACE WATER QUALITY Infiltrated stormwater does not negatively affect groundwater quality. Streams meet water quality standards for human health and aquatic life. GROUND AND SURFACE WATER QUANTITY • Groundwater supply is replenished by infiltration from developed areas at a rate that is equal to the volume infiltrated under natural forPs,ted conditionG_ • Streams have adequate summer flow volume and natural winter storm flow regimes to support local aquatic life. HABITAT ENHANCEMENT • City -influenced streams are fully restored to forested hydrologic conditions and meet designated uses and water quality standards. • City culverts that carry fish -bearing streams allow fish to pass unimpeded. • Pocket estuaries adjacent to city lands are ecologically functional and not negatively affected by stormwater runoff or hydraulic constraints from stormwater infrastructure. • Shorelines adjacent to city lands are not negatively affected by stormwater. • City watersheds are characterized and prioritized according to potential environmental restoration, conservation, or development so that investments in stormwater and watershed projects canbe directed to where they achieve the maximum benefit. MAPPING AND ASSET MANAGEMENT Stormwater system asset attributes and conditions are tracked and managed in one cohesive system that is compatible with all other city systems. The stormwater system asset management system supports planning and prioritizing repairs, upgrades, and maintenance, as well as generating and tracking work orders to support annual review and evaluation. 14 PUBLIC PARTICIPATION (EDUCATION, OUTREACH, AND INVOLVEMENT) Community members understand the relationship between their actions and stormwater quantity and quality and take action to minimize their I % stormwater impacts and habitat damage. 1 POLLUTANT SOURCE CONTROL • Pollutants from developed lands and roads do not enter surface water or groundwater at levels that are harmful to aquatic life or human health. 04 • Citizens and businesses implement pollution prevention practices to the maximum extent feasible. INFRASTRUCTURE OPERATIONS AND MAINTENANCE All City -owned and privately -owned stormwater infrastructure, including flow control and water quality facilities, function as designed. DEVELOPMENT PRACTICES All development and redevelopment projects comply with City Standards for stormwater management. The City's approach to development and redevelopment oversight enables money spent on stormwater management to have the maximum benefit for waterresources. Runoff from all manmade development and construction sites is mitigated by stormwater facilities in accordance with current Citv Standards prior to discharge to surface water bodies. COMPREHENSIVE PLANNING, ADMINISTRATION, AND FUNDING • The City's storm drainage utility has a comprehensive strategy to manage infrastructure protect water resources, restore damaged habitats, and ensure sustainable development. • The City's storm drainage utility is adequately funded to meet regulatory requirements and the stormwater related needs of citizens. • Existing property owners and developers pay for an equitable share of the necessary improvement and expansion of the City's stormwater system. • The City has a complete understanding of existing unmanaged manmade surfaces and a plan to retrofit those surfaces that is balanced with available funding. 1� IE Opportunities and Challenges As part of the stormwater and watersheds comprehensive planning process, the City identified opportunities and challenges faced by the Utility. The relationship between these opportunities and challenges and the City's long-term goals is discussed in more detail below. Opportunities The process to develop this Plan allowed City staff to identify long- term goals, describe the ideal state for managing stormwater runoff, and identify and plan capital projects to invest in the future of the City stormwater system. Existing activities, future programs and projects, and future regulatory requirements were evaluated when developing this Plan. This Plan sets a road map for the future of stormwater management. Challenges The City is operating its stormwater program according to the 2019- 2024 Permit (Ecology 2019). Challenges facing the City include meeting more stringent requirements in the 2019-2024 Permit, such as: business source control and inspection program, public education, reporting, watershed planning, and adoption of a new stormwater manual. Additionally, a new NPDES Permit will be issuedin2024 andis expectedtohave additional requirements. Lack of dedicated staff time is the primary challenge facing the City. Staff conduct the activities required by the 2019-2024 Permit, track progress, and report to Ecology on an annual basis. Staff also respond to flooding and water quality issues submitted by citizens and conduct inspections during construction, post- construction, and for maintenance of selected stormwater drainage facilities. The City lacks available staff time to manage stormwater capital projects and submit and manage grant applications and funds. Evaluate Stormwater Identify Initial List of Complete Receiving and Watersheds Capital Improvement Water Conditions Program Program (CIP) Assessment and Projectsa I Prioritization Complete Stormwater and Develop Summary Complete Stormwater Watersheds Program Sheets for Priority Management Action Evaluation and CIP Projects Plan (SMAP) Recommendations Define Levels of Service for Programs and CIP Projects Conduct Financial Develop Draft Plan Analysis Assemble Final Plan City Watersheds This chapter summarizes background information of existing conditions, regulations and environmental considerations influencing Plan development and implementation. Within the City of Port Orchard, there are 17 distinct watersheds (see Figure 2). These watersheds were delineated and characterized as part of the City's Watershed Inventory and Assessment (Herrera 2022a). The major watersheds (or watersheds with the most jurisdictional control) located within the City include: • Annapolis Creek • Downtown County Campus • Anderson Creek • Caseco Creek • Johnson Creek • Blackjack Creek (including Lower, Middle, and Upper Blackjack Creeks) • Melcher Creek • Ross Creek • Ruby Creek • Stream 270 The minor watersheds (or watersheds with the least jurisdiction control) located within the City include: • Karcher Creek • Coulter Creek • Rocky Creek • Sacco Creek • Square Creek Figure 1. City Watersheds. 18 j • Legend Port Orchard City Limit ,L , Watershed Boundary Stream Roads Waterbody Wetland t i r 1 r Ross Creek, Sinclair Inlet " Sacco Creek AT Annapolis i• Creek Upper .� . Blackjack s I� I oCree� [, Karcher Creek Middle =I Blackjack ! i �- - - Creek i � —� - [------•-- Gorst Creek Lower An ,-. - -� derson• � Blackjack Creek ,� I Creek Stream it 27001 Ruby Creek • --- - y .!, J Coulter - �� -- I • 1�1 Creek rS uare,'� q T b � Creek ram`' Rocky Creek i I i i IL 19 City Watersheds, Continued... Some watersheds support salmon while others support other aquatic species (see Figure 3). Streams, such as Johnson Creek, Annapolis Creek, Karcher Creek and Stream 270, support up to three salmonid species, while other larger stream systems associated with valued wetlands, such as Lower Blackjack Creek, Anderson Creek, Ross Creek, and Ruby Creek, support a wider variety of salmonid species which may include fall and summer chum, coho, fall Chinook and steelhead. Smaller stream systems such as Downtown County Campus, Melcher Creek and Caseco Creek, do not support salmonids and may host other species including sculpin, freshwater eels, and other small stream aquatic species. Important species that utilize the nearshore marine environment of Sinclair Inlet are forage fish including surf smelt and sand lance (see Figure 3). These small fish serve to provide recreation for the local community in the form of"smelting" during the open season at Ross Point, and provide an essential food source for larger fish, seals, and river otter, to name a few local wildlife often seen from City shorelines. Refer to the City's Watershed Inventory and Assessment (Herrera 2022a) for detailed characteristics of each watershed. I. �;- "�.ar. -- F�a` _ �• r '�Y�s' "mac .ram -- .. Above: Photo of Johnson Creek. Figure 2. Presence of Key Stream and Nearshore Fish Species in City of Port Orchard Watersheds. 20 r% 4 i Gorst Creek �� y r — � t + Stream � l� r 270 J 'L P I Ruby - ' Creek - I I r� + J q,� eek Vow �r If I 0/ • Sacco ' Creek �o r r� _ , / U 1 — JI, L , ,r I I r I I `r i1 i so '- Legend - J Port Orchard City Limit Watershed Boundary - Waterbody Roads Stream Surf Smelt Spawning Sand Lance Spawning Species Run (Documented Presence) Coho Resident Coastal Cutthroat Fall Chinook Fall Chum Summer Chum E Winter Steelhead ff 21 I� City Stormwater System The City stormwater system (inlets, pipes, ditches, vaults, swales, culverts, and ponds) collects runoff from streets, yards, rooftops, and parking lots (see Figure 4). That runoff is discharged through stormwater outfalls to either waterbodies (streams or marine nearshore) or to an adjacent municipality. Figure 3. City of Port Orchard Stormwater Infrastructure. Leaend o Outfall Conveyance 0 Stormwater Vault Culvert --_- Port Orchard City Limit -- Pipe Watershed Boundary -- Ditch Detention Pond ••••• Swale 1111 Waterbody �� -- Stream Roads 3 166 /J b -L .jfi a , I . r' I `. I \ -"; r � • I i ''* I mot...'L� -, `--, Ir • O� I I O -j I I / I Stormwater Impacts on Watersheds The degree to which the City stormwater system impacts local receiving waters can be categorized from low to high by assessing the dominance of City lands in the watershed and the level of stormwater infrastructure (see Figure 4 and Table 1). The total percent of impervious lands in a watershe d is correlated to the health of receiving waters. The greater the percent impervious lands, the likely greater level of degradation upon water resources. City stormwater influence is highest in Downtown County Campus, Annapolis Creek andJohnson Creek watersheds, andlowestinthe more rural or limited City presence in the Square Creek, Stream 270, Gorst Creek, Rocky Creek and Coulter Creek watersheds. Annapolis Creek High 55% 30% 1 4 Johnson Creek High 100% 29% 2 2 Lower Blackjack Creek Moderate/High 68% 22% 10 12 Ross Creek Moderate/High 65% 13% 10 13 Melcher Creek N lllfoderate 100% 12% 0 3 Caseco Creek Moderate -W 100% 12% 1 1 Anderson Creek Moderate 60% 9% 4 5 Ruby Creek Moderate 54% 5% 6 NA Karcher Creek Moderate 11% 28% 3 0 Sacco Creek Moderate 22% 18% 0 0 Square Creek Low 7% 4% 1 NA Stream 270 Low 45% 3% 0 NA Gorst Creek Low - 5% 4% 1 NA Rocky Creek Low - 1% 2% 0 NA Coulter Creek Low - 1% <1% 0 NA Figure 4. Stormwater Influence Upon Watersheds. 24 Legend Watershed Boundary r Port Orchard City Y Limit - Waterbody Roads Stream Level of City Stormwater Impact Very High 0 High Moderate/High 0 Moderate Low Gorst Creek Coulter Creek 1 r -- a Annapolis 3 166 Creek) ` - Upper Blackjack • d + Creek,"+ — Ross �.. Creek ' • Karcher t I Creek Middle �. 16 Blackjack Creek 1 � 1 1 1 Lower �. Blackjack d --• Creek air sl �_ - 1 1 ■ I i �— Ruby �--- + 1 Creek --J —— — � / _ • Squa Cree Sacco Creek E 25 16 Applicable Policies And Regulations In addition to addressing drainage and water quality concerns impacted by stormwater runoff, the Surface Water Management Program must also comply with several local, state, and federal regulatory requirements. They include: IN NPDES Permit r The 2019-2024 Permit (Ecology 2019) has broad requirements associated with stormwater runoff and requires the City to develop NX distinct program components. The first Phase II Permit was issued by Ecology in 2007, reissued in 2012, and again in 2019. The requirements for the City's stormwater program have become more moostringent with each new permit issuance. The permit requires that the City's program meet requirements in 11 primary areas: 2A=; Stormwater planning • Public education and outreach Public involvement and participation • Municipal separate storm sewer system (MS4) permit mapping and documentation • Illicit discharge detection and elimination (IDDE) • Controlling runoff from new development, redevelopment, and construction sites • Operations and maintenance (O&M) • Source control program for existing development • Compliance with Total Maximum Daily Load (TMDL) requirements • Monitoring and assessment • Reporting requirements ;; .. Washington State Growth Management Act (GMA) The Washington State Growth Management Act (GNU) is a series of statues, which include requirements for the inventory and protection of environmentally critical areas. Environmentally critical areas include steep slopes, wetlands, and streams (Chapter 36.70A of the Revised Code of Washington [RCW]). The GNU also requires fast-growing cities and counties to develop comprehensive plans to ensure environmentally responsible and economically sustainable development, which includes planning for stormwater related capital facilities. 26 Port Orchard Municipal Code ;, ;'• ;: Several chapters of the Port Orchard Municipal Code (POMC) govern aspects of stormwater management on new development and redevelopment project sites, as well as inspection and maintenance requirements for private stormwater facilities. The primary chapters in the POMC related to surface and stormwater management include: • Chapter 13.06 — Storm Drainage Utility • Chapter 15.30 — Illicit Discharge Prevention, Detection, and Elimination • Chapter 20.140 — Land Disturbing Activity • Chapter 20.150 — Stormwater Drainage Ecology Total Maximum Daily Load Implementation Plans ATMDL cleanup action is required for water bodies that have been identified as impaired on Ecology's Section 303(d) list due to poor water quality. The Cityimplements actions incompliance with the Sinclair/Dyes Inlet Fecal Coliform TMDL as required per Appendix 2 of the 2019-2024 Permit. Federal Endangered Species Act The Federal Endangered Species Act (ESA) prohibits the take of all listed species, including a take that could result from the City's stormwater facility operations or private development stormwater management activities that are permitted by the City. Underground Injection Control Program The underground injection control (UIC) program is a federal program intended to ensure that underground sources of drinking water are protected from surface discharges to the ground. In the State of Washington, the UIC program is administeredby Ecology through Chapter 173-218 of the Washington Administrative Code (WAC). The Guidance for UIC Wells that Manage Stormwater (Ecology 2006) lays out the requirements for UIC wells, and Ecology has included additional guidance in the latest version of the Stormwater Management Manual for Western Washington, released in 2019. 27 Tremont St. widening; Kitsap Daily News Program Accomplishments Since the storm drainage utility was founded in 2008, the City of Port Orchard has made significant progress in reducing detrimental effects of stormwater runoff on receiving waters in and around Port Orchard. The City has planned and built capital projects to alleviate drainage problems throughout the City. The City has also provided stewardship opportunities through education and outreach. The City's accomplishments for the past four years are described in chronological order below: City staff hosted a springtime shoreline cleanup and beach education activity. Participants were encouraged to remove any trash they encountered, as well as recovering and removing any riprap or shoring materials that had fallen on the beach from the upland shoreline. While participants worked, City staff provided educational guidance regarding ecosystem recovery efforts, shoreline biodiversity, effects of stormwater on shoreline habitats and anthropogenic effects on intertidal habitats in general. City staff provided outreach to assist with stormwater, stream, and habitat education at South Kitsap High School, supporting the school's Career & Technical Education and Science, Technology, Engineering, and Math (CTE/STEM) program. This outreach event included providing demonstrations and descriptions of methods for establishing student stewardship activities relating to monitoring water quality, measuring discharge, and habitat and riparian monitoring methods at Annapolis Creek. The City completed the Tremont Street Widening project, which included stormwater detention, oil control, and enhanced treatment to protect critical downstream creeks and waterways (i.e., Johnson and Ross Creeks). Detention was provided by two underground stormwater vaults, a 164-foot-long by 20-foot-wide by 10-foot deep vault on the west end of the project and 100-foot-long by 20-foot-wide by 10-feet-deep vault on the east end, to provide flow control for downstream water bodies and mitigate stormwater issues. Stormwater conveyance was also upgraded to properly accommodate the volume of flow in the area. 28 The City began developing the Downtown Basin Stormwater Plan. The area surrounding the downtown basin is shown in Figure 6. LUALUThis plan is developing a roadmap for implementing water quality treatment and flow control best management practices for water quality outcomes in receiving waters. It will include the identification of feasible actions and implementable capital improvement projects that will modernize infrastructure and provide flow control in the downtown and nearshore areas of Port Orchard. Figure 6. Aerial Image of the City of Port Orchard's downtown Basin (photo courtesy of City of Port Orchard). City staff participated in the West Sound Partners for Ecosystem Recovery Lead Entity for Water Resource InventoryArea (WRIA) 15 and the Watershed Restoration and Enhancement Committee (WREC) for WRIA 15. This committee connected and engaged citizens and stakeholders in watershed level discussions and actions related to water quality, salmon enhancement, and stormwater. Participation in the WREC was completed in 2021. 29 Planning for Future Development Due to the City's proximity to the urban centers of Bremerton and Tacoma and connection to Seattle via ferry transportation, Port Orchard is designated as a "high capacitytransit community" by the Puget Sound Regional Council (Puget Sound Regional Council 2020). The Office of Financial Management (OFM) estimates that the City's population is 16,400 people as of 2022 and is expected to grow by much as 36%, or to 28,086 people by 2024 (Kitsap Regional Coordinating Council 2022; OFM 2022). This is one of many reasons why new development within the city will be significant in the coming years. Land development regulations and subarea planning efforts will be usedto address environmental and waterresource concerns. New development and redevelopment are and will continue to be regulated in accordance with the most recent flow control and water quality standards in the 2019 Public Works Engineering Standards and defined in POMC Chapter 20.150.06. The City adopts the following by reference: 2019 Washington State Department of Ecology Stormwater Management Manual 2012 Puget Sound Partnership Low Impact Development (LID) Technical Guidance Manual for Puget Sound Definitions, minimum requirements, and adjustment and variance criteria found in Appendix 1 of the 2019-2024 Permit, with exception of the erosivity waiver. Critical areas are regulated in accordance with POMC Chapter 20.162 addressing wetlands, fish and wildlife habitat conservation areas and related plans, geologically hazardous areas andrelated reports, frequently flooded areas, and critical aquifer recharge areas. 30 IL rt � Recently, the City completed the Ruby Creek Subarea Plan (City of Port Orchard2022). The plan vision was to foster densification, future growth, walkable neighborhood, and business amenities, while accommodating the natural function of Ruby Creek and Blackjack Creek (see Figure 7). Similar planning efforts within the City will accommodate both people and aquatic species. AL Aerial Rendition of the north end of the Ruby Creek Neighborhood. (image courtesy of City of Port Orchard) 31 Legend Q Outfalls ......•. DNR Shoreline Flood Scenarios 100 Year Marine Flood 2020 100 Year Marine Flood + 50% Probability SLR Projection2040 100 Year Marine Flood + 1% Probability SLR Projection2040 100 Year Marine Flood + 50% Probability SLR Projection2100 Climate Change In 2020, the City of Port Orchard collaborated with Kitsap County and the City of Bremerton to develop the Kitsap County Climate Change Resiliency Assessment (Kitsap County 2020). The assessment reviewed and summarized current and future climate change drivers, impacts, and risks for Kitsap County. These projected impacts were groupedinto impactsto social andeconomic systems and biophysical impacts, of which the following are related to this Plan: • Public infrastructure and support systems (stormwater), • Hydrology & hydrogeology (hydrologic changes and stream and riverine flooding), and • Habitat (freshwater and aquatic habitat). As part of the assessment, specific impacts to the City of Port Orchard were evaluated and have been summarized by the City's stormwater management component in Table 2. _ a7 194W ' 190W > 196W S�ONFYpy Q198W 3638E - 186W Ir 184W 216W 202W - - --- O AO 182W _ 212W 3636E PT 152W 174W 176W 218W 220W _ SJ?L 170 W 172W 222W 3642E 3632E 154W 224W 226W 234W z '� ..... 164W _tom.', t21 232W o 3644E 150W 148W � �� O 236W 146W 238W _.., 162W BANK ST ¢ 6 AyST f 144W 160 �Z aR ❑ lsaw • ST 142 W Q w z 32 - - > KITSAP ST Z 3620E 0 Table 2. Climate Changelmpacts. Stormwater Infrastructure Stream Flows Potential overload, degradation, and damage of stormwater infrastructure from sea level rise and more intense rain storms Winter stream flooding will become more frequent Lower spring and summer flows Groundwater recharge may be affected by hydrologic Groundwater Supply changes (e.g., increasing temperatures and potential for saltwater intrusion; declining summer flows; low water tables; and sea level rise) 0 Flood Risk Higher flood risk for low-lying coastal infrastructure, including stormwater conveyance and facilities Water Quality Regionally warmer stream temperatures Cold -water fish species across multiple life -cycle stages will be impacted by hydrologic changes. Possible loss of streamside vegetation Decrease in cooler/oxygenated aquatic habitat Habitat Wetland habitats are likely to contract and threaten shelter for juvenile fish and habitats for a variety of species Aquatic benthic invertebrates, amphibians, and salmonids will be impacted and will have downstream ecosystem and food -web impacts ®®® Capital Improvement Program (CIP) This section summarizes the surface water and stormwater capital improvement program (CIP). The purpose of the CIP is to define capital projects that make progress towards the City's long-term goals including: Flood Reduction Groundwater and Surface Water Quality Groundwater and Surface Water Quantity Habitat Enhancement Public Participation (Education, Outreach, and Involvement) Infrastructure Operations & Maintenance Comprehensive Planning, Administration, and Funding 34 Problem and Project Identification Previous surface water and stormwater plans and input from City staff were used to develop an initial list of problems to be addressed during work on this Plan. Surface and stormwater plans reviewed included the following: • 2018 Port Orchard Comprehensive Plan (City of Port Orchard 2018) • Blackjack Creek Watershed Assessment and Protection and Restoration Plan (ESA 2017) • Ruby Creek Subarea Plan (City of Port Orchard 2022) • Downtown Basin Stormwater Plan (Reid Middleton 2020) • 2018 Annapolis Creek Culvert Replacement — 30% Design & Permitting Coordination Report (Reid Middleton 2018) • Blackjack Creek Floodplain Restoration Project Engineering Design Plans (City of Port Orchard 2020) Additional problems were identified by surveying City staff through Esri's ArcGIS Survey123 and hosting workshops with the City. Problems were evaluated using desktop methods andfield evaluation to assess site -specific opportunities and constraints. Potential capital projects were developed to address the problems. The initial list of projects, problem descriptions, and solutions are provided in Appendix B. 35 Project Prioritization The initial surface water and stormwater CIP project list was ranked by City staff to determine the top 10 projects. The top 10 projects are shown in Figure 8.Once the top 10 projects were chosen, these projects were prioritized using a quantitative process that considered further input from City staff, review of background documents, and field reconnaissance of existing problems. This prioritization was then used to develop an implementation schedule that emphasized early completion of the projects providing the greatest benefit. An overview of the CIP project prioritization andgoals is includedinTable 3. Detailed prioritization results and CIP project summary sheets are provided in Appendix B. The CIP project implementation schedule is included in the Plan Implementation section of this Plan. i South Sidney Regional Facility 1 70 3 R 7 9 10 Johnson Creek Estuary Restoration Downtown Basin Stormwater Upgrades South Blackjack Creek Floodplain Restoration Central Sidney Stormwater Improvements Annapolis Creek Culvert Replacement SE Salmonberry Road, Lower Blackjack Creek Culvert Retrofit Ruby Creek Culvert Replacement South Blackjack Creek Culvert Removal and Bridge Installation Anderson Creek Culvert Replacement AWAM 45 40 �r ® 35 Opposite: Figure 6. Top 10 Capital Projects. 36 Legend 0 CIP Projects r--I Port Orchard City Limit Watershed Boundary - Waterbody Stream Roads t I � I f Anderson Creek Culvert Replacement I I r I I I r I I I I I I I -- Downtown Stormwater Basin Upgrades Johnson Creek Estuary Restoration r' r� I I '•, I I � South Sidney I-Regiional Facility uby Road Creek --,- r ulvert Replacement L v Annapolis Creek ' Culvert Replacement Sin'cla'ir Inlet r Lim1, > L Central Sidney J Stormwater I ,t Improvements r• I L 'I I I I SE Salm Lower BI Culvert r� I South Blackjack Creek I Floodplain Restoration i� South Blackjack Creek Culvert Removal and — Bridge Installation I I r onberry Road, ackjack Creek Replacement E 37 Levels of Service This chapter summarizes surface water and stormwater recommendations for the City's stormwater management program. Recommendations are organized by the long-term goals and levels of service defined below. The City has identified three levels of service for this Plan: Level 1, Level 2, and Level 3. Level 1 recommendations are shown for all long-term goals. Levels 2 and 3 are not included when no additional recommendations were identified. The levels of service are defined as follows: Level 1 Represents activities needed to meet 2019-2024 Permit requirements, potential future permit requirements, and essential program activities. Level 2 Includes everything in Level 1 and several additional improvements to expand public education and stewardship opportunities, implement the new asset management program, and increase staffing to adequately inspect construction projects and private stormwater facilities to improve environmental protection. Level 3 Includes everythinginLevels 1 and and represents staffing and funding to move towards achieving the City's goals. This level of service would result in the greatest benefits for the community and the environment, but would have the highest cost. Level 3 includes expanding public involvement and environmental monitoring activities. 38 Recommendations Recommendations are organized by the long-term goals and levels of service previously defined in this Plan. Detailed tables of recommendations with associated funding and staffing requirements are provided in City of Port Orchard Stormwater and Watersheds Program Evaluation and Recommendations (Herrera 2022c) and in Appendix A. Implementation of these recommendations are discussed in the Plan Implementation section of this Plan. 39 Recommendations Continued... Flood Reduction Level 1: • Design and construct upgrades to the existing conveyance infrastructure Groundwater and Surface Water Quality Level 1: • Respond to spills and water quality complaints • Develop Pollution Control Program Plans (Quality Assurance Project Plan [QAPPI equivalent) to monitor stream health and provide water quality statusupdates • Make annual payments to the collective fund for S8 Monitoring and Assessment • Seek opportunities to participate with Kitsap County and other local jurisdictions in an integrated and coordinated monitoring assessment program • Provide information as requested for effectiveness and source identification studies that are under contract with Ecology as active Stormwater Action Monitoring (SAM) projects • 0.25 FTE for Water Quality Technician Groundwater and Surface Water Quantity Level 1: • Design and construct upgrades to the existing conveyance infrastructure 40 Habitat Enhancement Level 1: • Conduct outreach on private property tree preservation and wetland buffers within Lower Blackjack Creek Catchment C Mapping and Asset Management Level 1: • Update the City's MS4 map on an ongoing basis, including all known connections from the MS4 to a privately owned stormwater system • Collect size and material data for known MS4 outfalls during the normal course of inspections and maintenance and update electronic records • Locate and map additional outfall • Additional 0.25 FTE for geographic information systems (GIS) Technician Level 2: • Includes all recommendations in Level 1 • Select and implement a computer maintenance management system (CMMS) • Additional 0.50 FTE for Asset Management Specialist 41 Public Participation (Education, Outreach and Involvement) 00111� Level 1: 00 • Review and update existing public education materials as needed III-Aw • Develop materials for one new target audience and subject area annually • Partner with West Sound Stormwater Outreach Group (WSSOG) on implementing social marketing campaigns • Host and/or advertise volunteer events related to stewardship opportunities and provide opportunities for public input • Continue collaborations with local builders' associations and participating in West Sound Partners for Ecosystem Recovery (WSPER) • 0.25 FTE for Education Specialist Level 2: • Develop an education and outreach plan for commercial and private facility owners related to LID principles and practices • Expand the partnership with South Kitsap School District • Additional 0.25 FTE for Education Specialist (0.50 FTE total) Level 3: • Develop materials for two additional target audiences and two additional subject areas annually (three target audiences and three subject areas total when combined with the Level 1 tier) • Create a volunteer stream team • Additional 0.50 FTE for Education Specialist (1.0 FTE total) 42 Pollutant Source Control Level 1: • Update the City's website with pollution control best management practice (BMP) resources • Perform field screening and tracking of illicit connections, illicit discharges, and spills • Continue to implement spill hotline and staff training program • Report illicit discharge data to Ecology using WQWebIDDE • Review and update public education materials gathered by the Business Inspection Group (BIG) to create a basic set ofresources for the City's source control program • Provide enhanced source control technical assistances to businesses within the Lower Blackjack Creek Catchment C • 0.25 FTE for Source Control Program Coordinator Level 2: • Increase staff support to screen outfalls on an annual basis • Develop additional public education materials to supplement those gathered by the BIG to create a broader set of resources for the City's source controlprogram 43 Infrastructure Operations & Maintenance Level 1: • Continue to implement a program to verify adequate long-term 0&M of stormwater treatment and flow control BMPs/facilities • Use a third -party contractor to conduct private facility inspections • Document inspections and enforcement actions for private stormwaterflow control andtreatment BMPs/facilities • Perform spot checks and inspections after storms • Inspect catch basins and maintain as needed • Conduct additional outfall inspections • Clean targeted catch basins in Lower Blackjack Creek Catchment, C • Continue to implement staff training program Level 2: • Have a dedicated inspector to conduct private facility inspections • Inspect and maintain additional catch basins • 0.50-1.0 FTE for O&M Technician (0.50 FTE in 2024,1.0 FTE in 2025-2028) 44 Development Practices Level 1: • Continue to implement stormwater plan review, inspection, and escalating enforcement processes • Refine and improve inspections and enforcement procedures • Conduct annual review of stormwater standards • Continue to implement staff training program • Add engineering capacity to the capital project design team to assist with stormwater retrofit projects and upcoming SMAP implementation • Develop a policy and standards for considering more intense future precipitation and sea level rise in stormwater capital improvement projects • 0.25 FTE forEngineer Level 2: • Have a dedicated inspector to conduct construction inspections • 1.0 FTE for Construction Inspector • Increase engineering capacity for the capital project design team to assist with stormwater retrofit proj ects and upcoming SMAP implementation • Additional 0.25 FTE for Engineer (0.50 FTE total) Level 3: • Increase engineering capacity for the capital project design team to assist with stormwater retrofit proj ects and upcoming SMAP implementation • Develop a policy and standards for new and redevelopment projects to design for more intense future precipitation • Additional 0.25 FTE for Engineer (0.75 FTE total) 45 Comprehensive Planning, Administration, and Funding Level 1: . Continue to meet regularly to direct planning, development, and implementation of the City's Stormwater and Watersheds Comprehensive Plan, SMAP development, andcontinue to review and implement LID code updates • Implement the SMAP activities • Prepare annual reports summarizing coordination with long- range planning efforts • Annually assess administrative or regulatory barriers to implementation of LID principles or LID BMPs • 0.25 FTE for Planner 46 Marine Park Mural, Port Orchard Waterfront 47 CD City Watersheds The 2019-2024 Permit required the City to conduct watershed planning using a process defined by the permit as "Stormwater Management Action Planning" (SMA . The SMAP process re ui� the City to view watersheds through t lens of stor er impacts to receiving water health and actions t improve these water resources. This planning was completed in three distinct steps: • Develop an inventory of watershed characteristics, including water resource conditions, aquatic life and community uses, stormwater influence, and social equity (Herrera 2022a), • Apply a prioritization process to identify the highest priority watershed (Herrera 2022b), and • C 1 to an "Action Plan" that includes retrofit projects, Gor#o MJnhancements, and land marApdWSAMIItegies, associated costs, and schedule (AppendlCMek Coulter Creek The goal of SMAP was tS city watershed where investments in stormwate I nagement are most likely to lead to environmental improver. Ross Creek Ruby Creek 48 166 Upper Blackjack Artwork at Blackjack Creek estuary Creek 49 Anderson Creek (Gorst) Annapolis Creek Downtown County Campus Gorst Creek Johnson Creek Karcher Creek Lower Blackjack Ross Creek Ruby Creek Stream 270 City Watersheds Continued... Marine nearshore and stream habitat conditions within major watersheds informed the prioritization process (See Table 4 and Figure 9). As a guiding principle, water resources with moderate or good habitat conditions for salmon and nearshore forage fish would benefit from water quality and flow control actions. However, the City also intends to invest in watersheds with poor habitat conditions to alleviate flooding and address water quality issues, where feasible. Good GoodIff Good Poor Good Fair Poor Poor w Poor Fair Good Good Poor Good Good Poor Good Good Good Good Good Fair Fair Fair Fair Good *NA = Not Applicable, * = City lands within Ruby Creek and Stream 270 Watersheds are not directly connected to the marine nearshore Fair Fair Poor Poor Fair Good NA* NA Figure 7. Nearshore and Major Watershed Stream 50 Habitat Condition Legend Port Orchard City Limit - Waterbody Minor Watershed Roads Nearshore Habitat Condition Good Fair Poor Major Watershed Stream Habitat Condition Good Fair Poor Gorst Creek Coulter Creek Rocky Creek Johnson Creek Melcher Creek Ross / Creek 16 / Anderson . 1 Creek trea � 270� Lower Blackjack Creek Sinclair Inlet A napo Cree Karcher Creek Sacco Creek E 51 Lower Blackjack Creek Watershed Lower Blackjack Creek watershed was selected as the highest priority watershed based on the following characteristics: • High receiving water use, including use by multiple salmonid species • Moderate level of development and future growth • Good water quality and habitat condition • Higher jurisdiction control • Promotes other plans and projects, most notably the Blackjack Creek Watershed Assessment and Restoration Plan (ESA 2017). Upon review with City staff, Catchment C (Figure 8) in the watershed was selected for the SMAP (Appendix C). The selected catchment was chosen due to the greater concentration of older development for retrofit opportunities. Above: Blackjack Creek Floodplain Right: Figure 8. City of Port Orchard Lower Blackjack Creek Catchment C 52 53 This section presents detailed information on implementing the recommended surface water and stormwater program activities presented in Stormwater Management Program Evaluation and Recommendations section and the capital projects described in Capital Improvement Program section. The major components of plan implementation include the completion of CIP projects, addressing staffing and resource needs, interdepartmental collaboration, interagency collaboration, and utility finances. CIP Plan Implementation The CIP projects are described in the Capital Improvement Program section and additional details on each project can be found in the project summary sheets (Appendix B). Table 5 presents an implementation schedule that aligns with the Level 1 level of service. Additional levels of services, which implement some CIP projects on accelerated schedules, are included in Appendix B. This schedule balances project priority, project complexity, and coordination with other projects. Capital projects are reviewed regularly by the City and the implementation schedule shown in Table 5 is subjecttochange based onevolving regulatory requirements, City priorities, and available resources. 54 roject 20 Annapolis Creek Culvert Replacement South Sidney Regional Facility Downtown Basin Stormwater Upgrades Ruby Creek Culvert Replacement Johnson Creek Estuary Restoration Ongoing Conveyance System Improvement Program SE Salmonberry Road, Lower Blackjack Creek Culvert Retrofit South Blackjack Creek Floodplain Restoration South Blackjack Creek Culvert Removal and Bridge Installation Central Sidney Stormwater Improvements Anderson Creek Culvert Replacement 2025 2026 2027 028 out years° $700,000 $2,800,000 $100,000 $100,000 $100,000 $100,000 $1,760,000 $1,100,000 $982,000 $400,000 $1,200,000 d All costs are in 2022 dollars. b In 2023, $100,000 in capital funding is scheduled for Ongoing Conveyance System Improvement Program. The projects listed in the `out years' column are scheduled after the six -year planning period. $2,500,000 $13,000,000 $300,000 $7,000,000 $1,600,000 $4,000,000 $1,600,000 55 Staffing and Funding Needs Under the current level of staffing, City staff can address surface water and stormwater problems that arise on a daily basis and troubleshoot specific issues that arise with development project reviews. However, they are not fully able to perform activities that would enable continual improvement of the City's stormwater management program. Current staffing levels will not be adequate to meet the rest ofthe requirements ofthe 2019-2024 Phase II Permit and make progress towards long-term goals defined as part of this Plan. The activities listed in the Stormwater Management Program Evaluation section of the Plan will require additional staffing and funding. Below are the number of full time equivalents (FTEs) and funding that are recommended for each level of service (see Figure 11 and Tables 6 and 7). Additional staffing and funding will be needed in Level 2 to support the City's source control, private facility inspection, education and outreach, asset management, and 0&M programs. In addition to the staffing and funding needed for Level 2, Level3includes anincreasein education and outreach, andcapital planning support. It should be noted that these recommendations start in 2023, but no new staffing and funding is included in the financial analysis for 2023. Refer to the Financial Analysis section for further information about the rate impacts of implementing the levels of service. Detailed estimates of staffing and funding needs can be found in Appendix A. 56 Figure 9. Levels of Service and Full Time Equivalents. 6 5 CO 4-1 to 4 a� CO 3 07 w a� 2 w 1 0 Level I - Level - Level 2023a 2024 2025 2026 2027 2028 Year a No new staffing in 2023 is included in the financial analysis Level 1 Total I Level 2 Total AM 1.09 1.23 1.60 1.68 1.845 3.54 4.35 W 4.45 2.34 104 5.12 5.20 1.68 - 4.70 5.51 Level 1 Total $10,000 $10,000 $60,000 $10,000 $10,000 Level 2 To $30,000 &$30,00S $60,000 "0,000 $10,000 ��&30,000 30,000 $60,000 �0,000 $110,000 a No new staffing in 2023 is included in the financial analysis b No new funding in 2023 is included in the financialanalysis $110,000 $150,000 $250,000 57 Financial Analysis The activities and proj ects listed in this section would be funded primarily by revenue from the storm drainage utility. A financial analysis was conducted to define utility rate adjustments that are necessary to implement the levels of service listed in this Plan. During the financial analysis, the City evaluated the regulatory needs and stormwater-related issues facing the City to find a balance betweenlevel of service and increased utility rates. Table 8includes the monthly rate per impervious surface unit (ISU) for the six -year planning period by level of service and the change (increase) from the previous year's monthly rate. An ISU is defined as one residential unit or 3,000 impervious square feet on non-residential parcels (e.g., commercial, multi -family). The full utility rate study report is included in Appendix D. The report documents assumptions for programmatic and capital project implementation for all three levels of service andincludes monthly rates per ISU for years 2023 to 2041. $16.94 $20.50 $24.80 $25.55 $26.31 F"ve"M$14.00 Change to Monthly Rate $2.94 $3.56 $4.30 $0.75 $0.76 Level $14.00 $18.34 $24.03 $31.47 $32.42 $33.39 Change to Monthly Rate $4.34 $5.69 $7.44 $0.95 $0.97 $14.00 _$20.37 $29.64 $43.12 $44.42 $45.75 Change toMonthly Rate MML$6.M37 $9.27 $13.48 $1.30 $1.33 J J The City is interested in considering a capital facilities charge (CFC) for stormwater, which would recover a proportionate share of the cost of existing and future system assets from new customers as growth occurs. The City already has CFCs for water and wastewater utilities. Table 9presentsthe maximum defensible CFCthatcanbe implemented by the City for each level of service. City Councilcould opt to adopt a lower CFC than shown in Table 9. 58 �► �- . •?�.i' '• 14. Ism - P . A Table 9. Capital Facility Charge by Level of Service Level of Service Capital Facility Charge Level 3 Image from Kitsap Conservation District Linkages to Other City Programs Interdepartmental Collaboration The City's stormwater management program is led by staff in the Public Works Department. Plan implementation will require contributions from staffin the Public Works Operations andMaintenance, Engineering, Community Development, and Finance departments. Interagency Collaboration To address ongoing regional efforts, the City should continue to work with regional stakeholder groups andlocal governments in shared drainage basins to manage and treat stormwater effectively. Below are agencies and regional programs related to implementing program elements. Comprehensive stormwater Planning • Coordinating with the Cities of Bremerton, Bainbridge Island, Poulsbo, and Kitsap County on the Dyes/Sinclair Inlets Fecal Coliform TMDL Implementation Plan • Coordinating with the City of Bremerton, Kitsap County, and Pierce County on potential future Stormwater Management Action Planning for shared drainage basins Public Education and Public Involvement Coordinating with the West Sound Stormwater Outreach Group (WSSOG) on regional messaging and programs Coordinating with the Kitsap Conservation District on potential future efforts including the homeowner rain garden cost share program Coordinating with the South Kitsap School District on a school stormwater curriculum and fieldvisits Capital Improvement Projects and Programs • Coordinating with the Suquamish Tribe and other relevant tribes on review of salmon habitat projects • Coordinating with the West Sound Partners for Regional Recovery on prioritization of regional salmon habitat projects • Coordinating with the Washington State Department of Fish and Wildlife on review of projects and their impacts to fish habitat • Coordinating with the Washington State Department of Transportation on City projects adjacent to state lands • Coordinating with Kitsap Regional Coordinating Council on regional transportation and land use decisions • Coordinating with Puget Sound Regional Council on transportation, growth management, and economic development 60 Pursuit of Outside Funding All of the CIP projects identified in this Plan are eligible for outside funding. The City should pursue state grants for stormwater retrofit projects; habitat, fish passage, and floodplain improvement grants forculvert, floodplain, and estuary projects; and low interest loans for capital projects that are purely conveyance improvements. .w� �yr Y �%1h3 - 61 REFERENCES Ecology. 2019. Western Washington Phase II Municipal Stormwater Permit. State of Washington Department of Ecology. Olympia, Washington 98504-7600. Issuance Date: July 1, 2019. ESA. 2017. Blackjack Creek Watershed Restoration Assessment and Protection and Restoration Plan. Prepared for Suquamish Tribe and Washington Department of Ecology, by ESA Consultants, Seattle, Washington. Mauger, Guillaume. 2017. Climate Change and Stormwater. Climate Impacts Group, University of Washington. 1-25. Kitsap County. 2021. Buildable Lands Report, Kitsap County, Washington. FINAL. https://www.kitsapgov.com/ded/PEP%20 Documents/FINAL%20Buildable%20Lands%2OReport— November%202021.pdf Kitsap Regional Coordination Council. February 15, 2022. LandUse PlanningPolicy Committee Meeting. <https:// static1.squarespace.com/static/5660ba88e4bOe83ffe8032fc/ t/6205bOf793b6a1302e7c8f41/1644540153978/ KRCC+P1anPOL+Feb+15+2022+Meeting+Packet.pdf. > Herrera. 2022a. City of Port Orchard Watershed Inventory and Assessment — Technical Memorandum. Prepared for the City of Port Orchard by Herrera Environmental Consultants, Seattle, Washington. March 21.<https:Hportorchardwa.gov/documents/ port- orchard -watershed- inventory/> Herrera. 2022b. City of Port Orchard Watershed Prioritization — Technical Memorandum. Prepared for the City of Port Orchard by Herrera Environmental Consultants, Seattle, Washington. June 22. < https:Hportorchardwa.gov/documents/port-orchard-watershed- prioritization/ > 62 Herrera. 2022c. City of Port Orchard Stormwater and Watersheds Program Evaluation and Recommendations. Prepared for the City of Port Orchard by Herrera Environmental Consultants, Seattle, Washington. February 24. Herrera. 2020. Port Orchard Shoreline Master Program Update. Prepared for the City of Port Orchard, by Herrera Environmental Consultants, Inc., Seattle, Washington. OFM. 2022. Population of Cities, Towns and Counties Used for Allocation of Selected State Revenues State of Washington. <https:// ofm.wa. gov/sites/default/files/public/dataresearch/pop/april l/ofm_ april l_population_final.pdf> Puget Sound Regional Council. 2020. Vision 2050 A Plan for the Central Puget Sound Region. Puget Sound Regional Council, Seattle, Washington. Adoption Date: October 29, 2020. < https://www.psrc. org/sites/default/files/2022-02/vision-2050-plan%20%281%29.pdf > Port Orchard. 2020. Blackjack Creek Floodplain Restoration Project Engineering Design Plans. 2020. Port Orchard, Washington. Port Orchard and Makers Architecture and Urban Design. 2022. Ruby Creek Subarea Plan. Port Orchard, Washington. Adoption Date: September 22, 2022. < https:Hstorage.googleapis.com/ proudcity/portorchardwa/uploads/2020/09/FINAL-ADOPTED-Ruby- Creek- Neighborhood- Subarea-Plan-09222020- l.pdf > Reid Middleton. 2018.2018 Annapolis Creek Culvert Replacement — 30% Design & Permitting Coordination Report, Prepared for the City of Port Orchard by Reid Middleton, Inc., Everett, Washington. Reid Middleton. 2020. Downtown Basin Stormwater Plan, Prepared for the City of Port Orchard by Reid Middleton, Inc., Everett, Washington. 63 APPENDIX A Stormwater Management Program Staffing and Funding Recommendations December 2022 (J HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan ITable A-1. Recommended Activities for Stormwater Planning. Funding Staff Hours I I I One -Times Ongoingb I I Staff I Recommendation Staff Support Assumptions I Funding Support Funding (hours/ FTE- (hours) year) 1 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 I Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 2023 1 2024 2025 2026 2027 2028 2023 2024 2025 2026 2027 2028 ' Level 1 The interdisciplinary team will continue to meet regularly to direct planning, development, and implementation of the City's Stormwater and Watersheds Interdisciplinary team $0 0 $0 0 0 Comprehensive Plan, SMAP development, and continue to review and implement LID code updates. Assumes funding and staff support would be included with the current level of storm drainage utility funding. (Ongoing) Prepare report summarizing coordination with long-range planning efforts. Long-range planning $0 0 $0 0 0 Assumes funding and staff support would be included with the current level of storm drainage utility funding. (Due January 2023) The City will continue to annually assess whether any administrative or regulato I I I I LID code review $0 0 $10,000 40 0.023 barriers to implementation of LID principles or LID BMPs were identified. Assume $10,000 of consultant support and 40 staff hours annually. (Ongoing starting $ 10,000 $ 10,000 $ 10,000 $ 10,000 $ 10,000 $ 10,000 40 40 40 40 40 40 2023) I I I Receiving water assessment I $0 0 $0 0 I 0 Receiving water assessment has been completed. (Due March 2022) Receiving water prioritization I $0 I 0 $0 0 I 0 Receiving water prioritization has been completed. (Due June 2022) I I I I Prepare a Stormwater Management Action Plan (SMAP) for one high priority area SMAP $0 0 $0 0 0 Assumes funding has already been set aside for this work and staff support woul be included with the current level of storm drainage utility funding. (Due March 2023) SMAP implementation $0 0 $0 442 0.25 Implement the SMAP. Assumes 0.25 FTE of staff time will be needed starting in 2026 to carry out activities defined in the SMAP. 442 442 442 Level 1 Total $0 0 $10,000 482 0.27 $ 10,000 $ 10,000 $ 10,000 $ 10,000 $ 10,000 $ 10,000 40 40 40 482 482 482 Level 2 All activities from Level 1 I $0 I 0 $10,000 482 0.27 Same assumptions as Level 1. $10,000 $10,000 $ 10,000 $ 10,000 $ 10,000 $ 10,000 40 40 40 482 482 482 Level 2 Total I $0 0 $10,000 482 0.27 $10,000 1 $10,000 1 $ 10,000 1 $ 10,000 1 $ 10,000 1 $ 10,000 40 40 40 482 482 482 Level 3 All activities from Level 2 I $0 0 $10,000 482 0.27 Same assumptions as Level 2. $10,000 $10,000 $ 10,000 $ 10,000 $ 10,000 $ 10,000 40 40 I 40 482 482 482 Level 3 Total $0 0 $10,000 482 0.27 $10,000 $10,000 1 $ 10,000 1 $ 10,000 1 $ 10,000 1 $ 10,000 40 40 40 482 482 482 'One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member City of Port Orchard Stormwater and Watersheds Comprehensive Plan October 2022 Table A-2. Recommended Activities for Public Education and Outreach. Funding I Staff Hours I One -Time' Ongoingb I I I Staff Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Staff I Recommendation Support Assumptions I I I I Funding Support Funding FTE` I (- (hours/ (hours) I 2023 I 2024 I 2025 I 2026 2027 2028 I 2023 2024 2025 2026 2027 2028 I year) Level I I Review and update existing public education materials as needed. Develop I I� General awareness public education $0 0 $0 221 0.125 materials for one newtarget audience and one new subject area annually. Assumes 221 221 221 221 221 221 materials 0.125 FTE of staff time will be needed starting in 2023. (Ongoing) Add additional Mutt Mitt pet waste pick up stations and conduct outreach within Lower Blackjack Creek Catchmentto align with the SMAP. Outreach topics include SMAP outreach $0 80 $0 80 0.05 private property stormwater impacts, stormwater practices, tree preservation, and 80 80 80 80 wetland buffers. Assumes 0.05 FTE of staff time will be needed starting in 2024. (Ongoing starting 2024) Evaluate behavior change program I $0 0 I $0 I 0 0 Evaluation of the Mutt Mitt program has been completed. (Due July 2020) Partner with WSSOG on implementing a natural lawn care social marketing Implement social marketing for campaign as a behavior enhancement in attempt to reduce the use of chemical $0 80 $0 0 0 40 40 existing program lawn treatments from 2021-2023. Assumes 80 hours total of additional staff time needed for implementation in 2023. (Ongoing through 2023) Summarize the changes in understanding and adoption of targeted behaviors Report behavior changes $0 160 $0 0 0 related to the behavior change program. Assumes 80 hours of additional staff time 80 80 needed in 2023 and 2024. (Due March 2024). Continue to host and/or advertise volunteer events related to stewardship Continue stewardship opportunities $0 0 $0 221 0.125 opportunities (shoreline cleanups and rain gardens). Assumes 0.125 FTE of staff 221 221 221 221 221 221 time will be needed starting in 2023. (Ongoing) Level 1 Total $0 I 320 $0 I 522 0.3 $ $ $ - $ - $ I $ 562 562 I 522 522 I 522 522 Level All activities from Level 1 $0 320 $0 I 522 0.3 Same assumptions as Level 1. $ $ $ $ $ I $ 562 562 522 522 522 522 Develop education and outreach materials for commercial and private facility Develop LID outreach materials $20,000 80 $0 0 0 owners related to LID principles and practices. Assumes $20,000 of consultant $ 20,000 80 support and 80 hours of staff support in 2024. (Complete in 2024). Expand the public education program by creating two additional stewardship opportunities and including field demonstrations/ interactive monitoring in the Expand stewardship opportunities $0 0 $0 442 0.25 442 442 442 442 442 442 partnership with South Kitsap School District. Assumes 0.25 FTE of staff time will be needed starting in 2023. (Ongoing starting 2023) Level 2 Total $20,000 400 $0 I 964 0.55 $ $ 20,000 $ $ $ $ 1004 1084 964 964 964 964 Level All activities from Level 2 $20,000 400 $0 964 0.55 Same assumptions as Level 2. $ $ 20,000 $ $ $ $ 1004 1084 964 964 964 964 Develop materials fortwo additional target audiences and two additional subject Develop new general awareness $0 0 $0 442 0.25 areas annually. Assumes 0.25 FTE of staff time will be needed starting in 2023. 442 442 442 442 442 442 public education materials (Ongoing starting 2023) Create a volunteer stream team for the City that would be trained on monitoring activities such as B-IBI sampling, and habitat/invasive species monitoring and Expand stewardship opportunities $0 0 $0 442 0.25 management. Assumes 0.25 FTE of staff time will be needed starting in 2023. 442 442 442 442 442 442 (Ongoing starting 2023) Level 3 Total $20,000 400 $0 I 1848 1.05 1 1 $ 1 $ 20,000 $ 1 $ 1 $ 1 $ 1 1,888 1,968 1,848 1,848 1,848 1,848 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member City of Port Orchard Stormwaterand Watersheds Comprehensive Plan October2022 Table A-3. Recommended Activities for Public Involvement and Participation. One -Time' Ongoing' I Staff Recommendation Staff Support Assumptions ' Funding Support Funding (hours/ FTE` � (hours) year) I I Level 1 Continue collaborations with local builders' associations related to permit changes and stormwater issues. Continue participation in WSPER, WREC, WSSOG and Collaborate with local stakeholders $0 0 $0 0 0 expanding ways to reach and involve overburdened communities. Assumes funding and staff support would be included with the current level of storm drainage utility funding. (Ongoing) Continue to post SWMP and latest Annual Report on City's website. Assumes Post SWMP Plan and Annual Report $0 0 $0 0 0 funding and staff support would be included with the current level of SWM funding. (Ongoing) Level 1 Total $0 0 j $0 I 0 0 Level 2 All activities from Level 1 $0 0 $0 I 0 0 Same assumptions as Level 1. Level 2 Total $0 0 $0 I 0 0 Level 3 All activities from Level 2 1 $0 0 $0 0 1 0 Same assumptions as Level 2. Level 3 Total I $0 0 $0 0 F 0 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member Funding I Staff Hours Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 2023 1 2024 I 2025 I 2026 1 2027 1 2028 2023 I 2024 I 2025 I 2026 I 2027 I 2028 $ - $ $ - $ - $ - $ - 0 o I o I o 1 0 1 0 I I I I I I I $ - I$ $ - I$ -$ - I$ - 0 0 I 0 I 0 I 0 I 0 City of Port Orchard Stormwater and Watersheds Comprehensive Plan October 2022 Recommendation Ongoing map updates I Locate and map additional outfalls `Map outfall attributes I� Map known private connections Continue to maintain electronic maps Level 1 Total All activities from Level 1 Implement computerized maintenance management system Table A-4. Recommended Activities for MS4 Mapping and Documentation. One -Times Ongoingb I ' Staff Staff Support Assumptions Funding Support Funding (hours/ FTE° (hours) year) Level 1 7 Continue to update the City's MS4 map on an ongoing basis. Assume 0.25 FTE $0 0 $0 442 0.25 additional staff time needed starting in 2023 to manage additions and updates to stormwater mapping. (Ongoing) Locate and map additional outfalls. Assumes 40 hours total of additional staff time $0 40 $0 0 0 needed to find and document outfalls. (Complete by 2024) Continue to collect size and material data for known MS4 outfalls during the normal course of inspections and maintenance and update records. Assumes $0 0 $0 0 0 funding and staff support would be included with the current level of storm drainage utility funding. (Ongoing) Continue to map all known connections from the MS4 to a privately owned $0 0 $0 0 0 stormwater system. Assumes funding and staff support would be included with the current level of storm drainage utility funding. (Due August 2023) Map new private connections when as-builts are received. Assumes funding and $0 0 $0 0 0 staff supportwould be includedwith the current level of storm drainage utility funding. (Ongoing) $0 40 $0 442 0.25 Level 2 $0 40 $0 442 0.25 Same assumptions as Level 1. Work with consultant to select a computerized maintenance management system (CMMS) and implement the CMMS. Assume thatfunding forconsultant (and staff $0 0 $0 884 0.50 time to manage the consultant) is already in place and 0.5 FTE is needed to implement and manage the CMMS starting in 2023. (Ongoing) Level 2 Total $0 40 $0 1,326 1 0.75 Level 3 All activities from Level 2 $0 40 $0 1,326 0.75 Same assumptions as Level 2. Level 3 Total $0 40 $0 1,326 0.75 8 One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member Funding Staff Hours Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 2023 I 2024 I 2025 I 2026 I 2027 I 2028 2023 1 2024 1 2025 1 2026 I 2027 I 2028 $ $ -�$ $ $ $ - $ - I $ -I$ - I$ - I$ - I$ - 442 1 442 1 442 1 442 1 442 1 442 40 442 I 482 I 442 I 442 442 442 442 I 482 I 442 I 442 I 442 442 884 I 884 I 884 I 884 I 884 I 884 $ - $ $ - $ - $ - $ - 1,326 1,366 1,326 1,326 1,326 1,326 $ - I $ - $ - $ - $ - $ - 1,326 1,366 1,326 1,326 I 1,326 1,326 $ - $ $ - $ - $ - $ - 1,326 1,366 1,326 1,326 1,326 1,326 City ofPort Orchard Stormwaterand Watersheds Comprehensive Plan October2022 Table A-5. Recommended Activities for Illicit Discharge Detection and Elimination. IOne -Times Ongoingb I Staff I Recommendation Staff I Support I I Assumptions Funding Support Funding (hours/ FTE` I _ (hours) I year) I I I� Level 1 IContinue to update the City's website with pollution control BMP resources. Post pollution control BMP resources $0 0 $0 0 0 Assurnesfunding and staff supportwould be included with the current level of storm drainage utility funding. (Ongoing) Continue field screening for illicit connections and illicit discharges. Assumes Field screening $0 0 $0 0 0 fundingandstaff support would be included with the current level of storm Ir drainage utility funding. (Ongoing) Continue to implement staff training program. Assumes funding and staff support Staff training program $0 0 $0 0 0 would be included with the current level of storm drainage utilityfunding. (Ongoing) Continue to respond to spills and water quality complaints. Assumes funding and Source tracing/respond to spills and $0 0 $0 0 0 staff support would be included with the current level of storm drainage utility water quality complaints funding. (Ongoing) Report illicit discharge data to Ecology using WQWebIDDE. Assumes funding and Report to Ecology $0 0 $0 0 0 staff supportwouldbe included with the current levelof storm drainage utility I I I I funding. (Ongoing) Level 1 Total $0 0 $0 I 0 I 0 Level _ All activities from Level 1 $0 0 I $0 I 0 I 0 Same assumptions as Level 1. Integrate IDDE tasks into the computerized maintenance management system Integrate IDDE into computerized $0 0 $0 0 0 (CMMS).AssumethisworkwillbeperformedbystaffimplementingtheCMMS maintenance management system (see Table B-4), so no additional staff time needed. Level 2 Total $0 0 $0 0 0 Level _ All activities from Level 2 $0 0 $0 I 0 I 0 Same assumptions as Level 2. Level 3 Total I $0 JL 0 $0 I0 I 0 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member Funding Staff Hours Year Year Year Year Years Year 1 Year Year Year Year Years Year 2023 1 2024 1 2025 1 2026 1 2027 1 2028 1 2023 1 2024 1 2025 1 2026 1 2027 1 2028 $ - $ $ - $ - $ - $ - 0 0 o o 0 0 $ - $ -I $ - I$ - I$ - I$ - 0 I 0 I 0 I 0 I 0 I 0 $ - $ $ - $ - $ - $ - o 0 o o 0 0 $ - $ $ - $ - $ - $ - 0 0 0 0 0 0 City of Port Orchard Stormwater and Watersheds Comprehensive Plan October 2022 ITable A-6. Recommended Activities for Controlling Runoff from New Development, Redevelopment, and Construction Sites. Funding Staff Hours One -Times Ongoingb I Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Staff I I Recommendation Staff Support j Assumptions Funding - Support Funding (hours/ FTE` I (hours) I I I 2023 I 2024 2025 2026 2027 I 2028 I 2023 2024 2025 I 2026 i 2027 i 2028 I I ' year) Level I Ordinance $0 0 $0 0 0 The Port Orchard Municipal Code (POMC) update to adopt Ecology's 2019 SWMMWW has been completed. (Due June 30, 2022) Continue to implement stormwater plan review program. Assumes funding and Stormwater plan review $0 0 $0 0 0 staff support (including the recent new hire) would be included with the current level of storm drainage utility funding. (Ongoing) Conduct a review of stormwater standards on an annual basis. Assumes 0.02 FTE Stormwater standards review $0 0 $0 40 0.02 40 40 40 40 40 of staff time will be needed starting in 2024. (Ongoing starting 2024) Refine and improve the stormwater plan review, inspection, and escalating enforcement processes. Assumes funding and staff support (including the recent Permit tracking system $0 0 $0 0 0 new hire) would be included with the current level of storm drainage utility fundin . (On oin) _ Provide training opportunities for inspection practices, recordkeeping, and erosion control, update the staff training plan as needed, and improve record Staff training program $0 0 $0 0 0 keeping/documentation of training for City staff. Assumes funding and staff support would be included with the current level of storm drainage utility funding. (Ongoing) ' Level 1 Total I $0 0 $0 I 40 0 $ - $ - $ - $ $ I $ - 0 I 40 I 40 I 40 I 40 40 Level 2 ' All activities from Level 1 I $0 I 0 I $0 I 40 0 Same assumptions as Level 1. I $ I $ I $ I $ I $ I $ I 40 40 I 40 I 40 40 Hire a dedicated stormwater inspector (1 FTE starting in 2024) to assist with Construction inspections $0 0 $0 1,768 1.00 1,768 1,768 1,768 1,768 1,768 construction inspections. (Ongoing) Level 2 Total I $0 0 $0 I 1,808 1.02 $ $ - $ $ - $ I $ - 0 1,808 1,808 I 11808 I 1,808 1,808 Level 3 All activities from Level 2 $0 0 $0 I 1,808 1.02 Same assumptions as Level 2. $ $ $ $ $ I $ 1,808 1,808 I 1,808 I 1,808 1,808 Level 3 Total $0 0 $0 1,808 1.02 $ $ $ $ - $ $ - 0 1,808 1,808 1,808 1,808 1,808 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member City ofPort Orchard Stormwaterand Watersheds Comprehensive Plan October2022 Table A-7. Recommended Activities for Operations and Maintenance. Funding Staff Hours One -Times Ongoing Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 I Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Staff Recommendation Staff Support Assumptions Funding Support Funding FTE` (hours) (hours/ 2023 2024 2025 2026 2027 2028 2023 2024 2025 2026 2027 2028 year) I� Level Continue implement private facility inspectors via a third -party contractor. Private facility inspections $0 0 $0 0 0 Assumes funding and staff support would be included with the current level of I storm drainage utility funding. (Ongoing) I-F Maintenance SOPs $0 0 $0 0 0 Stand-alone SOPS, to address the practices, policies, and procedures listed in the NPDES permit, have been developed. (Due December 2022) Continue to annually inspect and maintain municipally owned or operated Public facility inspections and stormwater treatment and flow control BMPs/facilities according to permit $0 0 $0 0 0 maintenance conditions. Assumes funding and staff support would be included with the current level of storm drainage utility funding. (Ongoing) Continue to implement spot checks and inspections after major storms. Spot checks $0 0 $0 0 0 Assumes funding and staff support would be included with the current level of SWM funding. (Ongoing) Continue to inspect catch basins and maintain as needed. Assumes funding and Catch basin inspections $0 0 $0 0 0 staff support would be included with the current level of storm drainage utility funding. (Ongoing) Continue to implement training programs for staff whose work could impact O&M training $0 0 $0 0 0 stormwater. Assumes funding and staff support would be included with the current level of storm drainage utility funding. (Ongoing) Inspect additional outfalls. Assumes locating and mapping outfalls process is Outfall inspections $0 200 $0 0 0 complete and 200 hours total of additional staff time needed to inspect the 200 outfalls in 2025. (Complete in 2025) Clean targeted catch basins in the Lower Blackjack Creek Catchment to align Catch basin cleanings $0 0 $0 120 0.07 with the SMAP. Assumes 0.07 FTE of staff time will be needed starting in 2024. 120 120 120 120 120 (Ongoing starting 2024) Continue to conduct annual SWPPP inspections. Assumes funding and staff Conduct annual SWPPP $0 0 $0 0 0 support would be included with the current level of storm drainage utility inspections funding. (Ongoing) Conduct and document SWPPP training for staff. Assumes funding and staff SWPPP training $0 0 $0 0 0 support would be included with the current level of storm drainage utility funding. (Ongoing) Level 1 Total I $0 I 200 I $0 120 0.07 I $ $ $ - $ I $ I $ 0 120 320 120 120 120 Level I All activities from Level 1 I $0 I 200 I $0 120 0.07 Same assumptions as Level 1. I $ $ $ $ $ I $ 120 320 120 120 120 Add 0.25 FTE in 2024 and increase to 0.5 FTE total in 2026 to implement private Private facility inspections $0 0 $0 884 0.50 I 442 442 884 884 facility inspections with City inspectors. (Ongoing) Catch basin inspections $0 0 $0 884 0.50 Add 0.5 FTE in 2024 to support catch basin inspection and cleaning. (Ongoing) I 884 884 884 884 884 Level 2 Total $0 200 $0 1,888 1.1 I $ $ - $ $ $ $ 0 1004 1,646 1,446 1,888 1,888 Level I All activities from Level 2 $0 200 $0 1,888 1.1 Same assumptions as Level 2. I $ $ $ $ $ $ 1004 1,646 1,446 1,888 1,888 Level 3 Total I $0 I 200 $0 1,888 1.1 I $ - $ - $ $ $ $ 0 1004 1,646 1,446 1,888 1,888 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures `FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member City of Port Orchard Stormwaterand Watersheds Comprehensive Plan October2022 ITable A-8. Recommended Activities for Source Control Program for Existing Development. Funding Staff Hours IOne -Time, Ongoingb Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Staff Recommendation Staff Support Assumptions Funding Support Funding (hours/ FTE- (hours) 2023 I 2024 2025 2026 2027 2028 2023 I 2024 2025 2026 2027 2028 year) 1 I Level I $0 $0 0 0 The City's Stormwater Ordinance to address source control program and I I I I I I I I I I Ordinance 0 enforcement has been developed. (Due August 2022) Source control inventory $0 0 $0 0 0 The City's initial source control inventory has been developed. (Due August 2022) I I I I I I I Review and update public education materials gathered by the Business Inspection Review/update public education Group (BIG) to create a basic set of resources for the City's source control $0 0 $0 40 0.02 40 40 40 40 40 40 materials program. Assumes ongoing staff support of 40 hours per year starting in 2023 to update materials. (Ongoing) Conduct annual source control inspections on 20% of the businesses and/or properties included in the updated source control inventory. Prioritize inspections Source control inspections $0 0 $0 280 0.16 in the Lower Blackjack Creek Catchment to align with the SMAP. Assumes 0.16 FTE 280 280 280 280 280 280 will be needed to implement the inspection program (total staff need for Source Control will be 0.25 FTE). (Ongoing starting in 2023) Investigate sites identified through legitimate complaints. Assumes approximately I I Investigate complaints $0 0 $0 40 0.02 40 40 40 40 40 40 40 hours of staff support needed annually. (Ongoing starting January 2023) Ongoing maintenance of inspection records and enforcement documentation. Source control recordkeeping $0 0 $0 80 0.05 Assumes 80 hours of staff support needed annually starting in 2023 to implement 80 80 80 80 80 80 recordkeeping system. (Ongoing) Provide enhanced source control technical assistances to businesses within the Enhanced business source control $0 0 $0 40 0.02 Lower Blackjack Creek Catchment. Assumes 0.02 FTE of staff time will be needed 40 40 40 40 40 technical assistance starting in 2024. (Ongoing starting 2024) Conduct and document source control training for staff. Assumes funding and sta Staff training program $0 0 $0 0 0 support would be included with the current level of storm drainage utility funding (Ongoing starting in 2023) Level 1 Total $0 0 $0 480 0.27 $ $ - I $ - I $ - I $ I $ - 440 I 480 I 480 480 480 480 Level All activities from Level 1 I $0 I 0 I $0 I 480 0.27 Same assumptions as Level 1. $ I $ I $ I $ I $ $ 440 I 480 I 480 I 480 480 I 480 Develop additional public education materials to supplement those gathered by the BIG and developed as part of Level 1 to create a broader set of resources for Develop additional public education $20,000 0 $0 40 0.02 the City's source control program. Assumes $20,000 of consultant support in 2023 $ 20,000 40 40 40 40 40 materials and ongoing staff support of 40 hours per year starting in 2024 to update materials. (Ongoing) Level 2 Total $20,000 0 $0 1 520 1 0.29 1 $ 20,000 $ -1 $ I $ - $ I $ - 440 1 520 520 1 520 520 520 Level 3 All activities from Level 2 1 $20,000 0 $0 1 520 0.29 Same assumptions as Level 2. $ 20,000 1 $ $ $ $ $ 440 520 520 1 520 520 520 Level 3 Total 1 $20,000 0 $0 1 520 1 0.29 1 $ 20,000 $ -1 $ -I $ -I $ -I $ - 440 520 520 1 520 520 520 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures c FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member City of Port Orchard Stormwater and Watersheds Comprehensive Plan October 2022 Table A-9. Recommended Activities for Total Maximum Daily Load (TMDL) Requirements. Funding Staff Hours I One -Time' Ongoingb I I Staff Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 I Recommendation Staff Support Assumptions I I Funding Support Funding (hours/ FTE° (hours) 2023 I 2024 2025 I 2026 I 2027 I 2028 2023 2024 2025 2026 2027 2028 year) ILevel 1 Prioritize IDDE screening in areas discharging to Sinclair Inlet via Blackjack, Annapolis, and Karcher Creeks and to shorelines (2021-2023). Assumes funding and IDDE screening in high priority areas $0 0 $0 0 0 staff support would be included with the current level of storm drainage utility funding. (Continue into 2023) Develop a Pollution Prevention Control Plan (QAPP equivalent) to monitor stream health and provide water quality status updates by the end of 2023. Assume cost to Pollution Prevention Control Plan and $0 0 $0 442 0.25 prepare Pollution Prevention Control Plan is included with the current level of storm 442 442 442 442 442 442 ongoing monitoring drainage utility funding, but that implementation in 2023 and beyond would require 0.25 FTE staff support. (End of 2023 for Plan; Ongoing for monitoring) Level 1 Total I $0 I 0 I $0 I 442 0.25 $ - $ - $ - $ $ - 442 442 442 442 442 442 Level 2 All activities from Level 1 I $0 I 0 $0 442 0.25 Same assumptions as Level 1. $ $ $ I $ $ $ I 442 I 442 442 442 442 442 I Level 2 Total I $0 I 0 $0 442 0.25 $ - $ - $ - $ - $ - $ - 442 442 442 442 442 442 Level 3 All activities from Level 2 $0 0 $0 442 0.25 Same assumptions as Level 2. $ $ - $ $ $ I $ 442 442 442 442 442 442 Level 3 Total $0 0 $0 442 0.25 $ - $ - $ - $ - $ - $ - 442 442 442 442 442 442 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member City of Port Orchard Stormwater and Watersheds Comprehensive Plan October 2022 Table A-10. Recommended Activities for Monitoring and Assessment. L Funding Staff Hours IOne -Times Ongoingb 1 Staff I Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 I Recommendation Staff� Support Assumptions Funding Support Funding (hours/ FTE` (hours) I 2023 2024 2025 2026 2027 2028 2023 2024 2025 2026 2027 2028 year) 1 ILevel 1 The City should continue to pay into the Regional Status and Trends Monitoring at the annual contribution amount specified in Appendix 11 of the 2019-2024 Regional status and trends $0 0 $0 0 0 permit. This is already included in the annual budget. The City should also seek monitoring opportunities to participate with Kitsap County and other local jurisdictions in an 1-1 integrated and coordinated monitoring assessment program. The City should continue to pay into the Regional Effectiveness Studies and Effectiveness studies and source Source Identification Studies at the annual contribution amount specified in $0 0 $0 0 0 identification studies Appendix 11 of the 2019-2024 permit. This is already included in the annual budget. The Citywill continue to implement monitoring required by TMDLs (see Table B-9 TMDL $0 $0 0 0 0 requirements for funding and staffing). Level 1 Total $0 0 I $0 I 0 0 CI $ I$ I$ $ - I$ 0 I 0 I 0 I 0 0 0 Level 2 All activities from Level 1 I $0 I 0 I $0 I 0 0 Same assumptions as Level 1. I$ I$ $ I$ $ I$ I I I I I I Level 2 Total $0 0 I $0 I 0 0 1 I$ $ I$ $ - I$ 0 I 0 I 0 I 0 0 0 Level 3 All activities from Level 2 I $0 0 $0 0 0 Same assumptions as Level 2. I $ I $ - $ I $ - I $ I $ I I I I I Level 3 Total $0 0 $0 0 0 $ - $ - $ - $ - $ - $ - 0 I 0 I 0 I 0 0 0 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member City of Port Orchard Stormwater and Watersheds Comprehensive Plan October 2022 ITable A-11. Recommended Activities for Reporting. Funding Staff Hours IOne -Time' Ongoing' 2 Year 3 Year 4 Year 5 Year 6 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Staff I Recommendation Staff Support Assumptions Funding Support Funding (hours/ FTE° (hours) 2024 I 2025 I 2026 I 2027 I 2028 2023 2024 2025 2026 I 2027 I 2028 year) ILevel 1 FaYear Annual report and SWMP plan $0 0 $0 0 0 Continue to update the SWMP plan and answer the Annual Report questions each year. Assumes funding and staff support would be included with the current level updates of storm drainage utility funding. (Due March 31st each year) Continue retaining records for a minimum of 5 years. Assumes funding and staff Record keeping $0 0 $0 0 0 support would be included with the current level of storm drainage utility funding. (Ongoing) Level 1 Total $0 0 I $0 I 0 0 I$ - I$ -$ - I$ -$ - I$ - 0 I 0 I 0 I 0 0 0 Level 2 ' All activities from Level 1 I $0 I 0 I $0 0 0 Same assumptions as Level 1. I$ I$ $ I$ I$ I$ I I I I I Level 2 Total $0 0 I $0 0 0 1$ $ - $ - I$ - $ - $ - 0 I 0 I 0 I 0 0 0 Level C� All activities from Level 2 $0 0 I $0 I 0 0 Same assumptions as Level 2. I $ I $ $ $ $ $ �I I Level 3 Total $0 0 $0 0 0 $ 1 $ - $ - $ - $ - $ - 0 0 0 0 0 0 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures c FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member City of Port Orchard Stormwater and Watersheds Comprehensive Plan October 2022 Table A-12. Recommended Activities for Other SWM Program Support. Funding Staff Hours One -Time, Ongoingb ' Staff Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Staff I Recommendation Support Assumptions Funding Support Funding FTEc (hours/ (hours) 2023 I 2024 I 2025 F 2026 2027 2028 2023 2024 2025 2026 2027 2028 year) Level 1 Add engineering capacity to the capital project design team to assist with Capital project design and project $0 0 $0 442 0.25 stormwater retrofit projects and upcoming SMAP implementation projects. 442 442 442 442 management Assumes the addition of 0.25 FTE starting in 2025. (Ongoing) Climate change in capital Uevelop a policy and standards Tor consicderincl more intense tuture precipitation $50,000 100 $0 0 0 and sea level rise in stormwater capital improvement projects. Assumes $40,000 $ 50,000 100 improvement projects of consultant support and 100 hours of staff time in 2025. Level 1 Total $50,000 100 $0 442 0.25 $ -I $ $ 50,000 $ 1 $ - $ - I 0 0 542 442 442 442 Level 2 I All activities from Level 1 $50,000 100 $0 442 0.25 Same assumptions as Level 1. $ $ - $ 50,000 $ $ $ I 542 442 442 442 Increase engineering capacity for the capital project design team to assist with Additional capital project design and $0 0 $0 442 0.25 stormwater retrofit projects and upcoming SMAP implementation projects. 442 442 442 442 project management Assumes the addition of 0.25 FTE starting in 2025. (Ongoing) Level 2 Total $50,000 I 100 I $0 I 884 1 0.50 $ - $ $ 50,000 1 $ I $ - $ I 0 I 0 I 984 884 I 884 I 884 Level 3 I All activities from Level 2 $50,000 100 $0 884 0.50 Same assumptions as Level 2. $ $ $ 50,000 $ $ $ I 984 884 884 884 Increase engineering capacity for the capital project design team to assist with Additional capital project design and $0 0 $0 442 0.25 stormwater retrofit projects and upcoming SMAP implementation projects. 442 442 442 442 project management Assumes the addition of 0.25 FTE starting in 2025. Develop a policy and standards for new and redevelopment projects to design for Climate change in private $100,000 100 $0 0 0 more intense future precipitation. Assumes $40,000 of consultant support and $ 100,000 100 development projects 100 hours of staff time in 2027. Level 3 Total $150,000 200 $0 1,326 1 0.75 1 1 $ -I $ $ 50,000 $ I $ 100,000 $ - 0 0 1,426 1,326 1,426 1,326 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member City of Port Orchard Stormwater and Watersheds Comprehensive Plan October 2022 Table A-13. Cost Summary by Program Area, Year, and Tier. Program Area I Tier I Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 2023 2024 2025 2026 2027 2028 IStormwater Planning Level Level 2 Level $10,000 $1o,000 I $10,000 $10,000 $1o,000 $10,000 $10,000 $10,000 $10,000 $10,000 $10,000 $10,000 $10,000 $10,000 $10,000 $10,000 $10,000 I $10,000 IPublic Education and Outreach Level $o $o $0 $o $20,000 $20,000 $0 $o $o $o $o $o $o $o $o $o $o $o Level 2 Level 3 IPublic Involvement and Participation Level $0 $0 $o $o $o $o $0 I $0 $o $o I $o $o $o $o $o $o $o $o Level 2 Level 3 IMS4 Mapping and Documentation Level Level 2 Level 3 $o $o $o $o $o $o $o I $0 $o $o I $o $o $o $o $o $o $o $o I Illicit Discharge Detection and Elimination Level $o $o $o $o I $o $o $o I $0 $o $o I $o $o $o $o $o $o $0 $0 Level 2 Level 3 I Controlling Runoff from New Development I Redevelopment, and Construction Sites, Level $o $o $o $o $o $o � $o $o $o $o $o $o � I $o $o $o � $o $o� I $o Level 2 Level 3 ( Operations and Maintenance Level Level 2 Level 3 $o $o $o $0 $0 $0 $0 $0 $0 $o $o $o $o I $o $o $o I $0 $o I Source Control Program for Existing Development Level $o $20,000 $20,000 $0 $0 $o $0 $o $o $o I $o $o I $o I $o $o I $o I I $o I $o Level 2 Level JTMDL Requirements Level $o $o $o $o $o $o $o $o $0 $o $o $o $o $o $o $0 I $o $0 I Level 2 Level Monitoring and Assessment Level1 $o $o $o $o $o $o $0 $o $o $o $o $o $o $o $o $0 I $o $o I Level 2 Level Reporting Level $o $o $0 $o I $o $o $o I $o $0 $o I $o $o $o $o I $o I $o $o $0 I Level 2 Leve13 I Other SWM Support Level 1 $o $0 $o $o I $0 I $o $50,000 $50,000 $50,000 $o $o $o $o $o $100,000 $0 $0 I $o Level 2 1 Level 3 Total $60,000 $60,000 $60,000 $o $20,000 $20,000 $0 $o $o $o $o $o $o $o $o $o $o $o $o $o $o $o $20,000 $20,000 $o $o $o $o $o $o $o $o $o $50,000 $50,000 $150,000 City of Port Orchard Stormwaterand Watersheds Comprehensive Plan October2022 Table A-14. Cost Summary by Year and Tier. Tier Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Total 2023 2024 2025 I 2026 2027 2028 Level 1 Total $10,000 $10,000 $60,000 $10,000 $10,000 $10,000 $110,000 Level 2 Total $30,000 $30,000 $60,000 $10,000 $10,000 $10,000 $150,000 Level 3 Total $30,000 $30,000 $60,000 $10,000 1 $110,0001 $10,000 $250,000 City of Port Orchard Stormwater and Watersheds Comprehensive Plan October2022 ITable A-15. Staff Hours Summary by Program Area, Year, and Tier. Program Area I Tier Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Total 2023 2024 2025 2026 2027 2028 I IStormwater Planning Public Education and Outreach I� I Public Involvement and Participation I Levell 40 40 40 40 40 40 40 40 I 40 482 482 I 482 482 482 482 482 482 I 482 I 522 I 964 I 1,848 1,566 I 1,566 I 1,566 Level 2 Level3 Level 1 562 1,004 1,888 I 562 I 1,084 1,968 I 522 I 924 1,848 I 522 I 964 ` 1,848 I 522 I 964 I 1,848 I 3,212 I 5,904 I 11,248 Level 2 Level Level 0 0 0 I 0 0 0 0 0 ` 0 I 0 0 ` 0 I 0 0 I 0 I 0 0 ` 0 I 442 I 1,326 1,326 I 0 I 0 I 0 Level 2 Level I MS4 Mapping and Documentation ILevel Level 442 1,326 1,326 I 482 I 1,366 1,366 I 442 I 1,326 1,326 I 442 I 1,326 1,326 I 442 I 1,326 I 1,326 2,692 7,996 7,996 Level 2 I Illicit Discharge Detection and Elimination ILeve13 Level 0 0 0 0 I 0 0 0 I 0 ` 0 0 I 0 ` 0 0 I 0 I 0 0 I 0 ` 0 I 40 1,808 I 1,808 0 0 0 Level 2 Controlling Runofffrom New Development, I Redevelopment, and Construction Sites Level 1 0 0 0 I 40 I 1,808 I 1,808 I 40 1,808 I 1,808 I 40 1,808 1,808 I 40 I 1,808 I 1,808 I 200 I 9,040 I I 9,040 I Level2 Level I Operations and Maintenance Level 0 0 0 I 120 I 1,004 I 1,004 I 320 1,646 I 1,646 120 1,446 I 1,446 I 120 I 1,888 I 1,888 I 120 1,888 I 1,888 I 800 I 7,872 I I 7,872 I Level 2 Level Source Control Program for Existing Development Level 440 440 440 I 480 I 520 520 I 480 520 520 I 480 I 520 520 I 480 I 520 520 I 480 I 520 520 I 2,840 I 3,oao 3,040 Level 2 Level 3 TMDL Requirements Level 442 442 442 442 I 442 442 442 442 442 442 442 442 442 I 442 442 442 442 442 2,652 I 2,652 I 2,652 Level 2 Leve13 Monitoring and Assessment Level 0 0 0 0 I 0 0 0 I 0 0 0 I 0 0 0 I 0 0 0 I 0 ` 0 0 0 I 0 Level 2 Level Reporting I� Other SWM Support Level 0 0 0 0 0 0 0 j 0 0 0 j 0 0 0 , 0 0 0 0 o I 0 0 l o l Level Level Level 0 0 0 I 0 I 0 0 I 542 I 984 1,426 I 442 I 884 1,326 I 442 I 884 1,426 I 442 884 1,326 I 1,868 I 3,636 5,504 Level 2 Level Table A-16. Staff Hours Summary by Year and Tier. Tier Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 2023 2024 I 2025 I 2026 I 2027 2028 I Level 1 Total 1,926 2,166 2,828 I 2,970 I 2,970 2,970 Level 2 Total 3,252 6,264 I 7,690 I 7,872 I 8,314 I 8,314 I Level 3 Total 4,136 7,148 9,056 9,198 9,740 9,640 Table A-17. Staff FTE Summary by Year and Tier. Tier Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 2023 2024 2025 2026 2027 2028 Level 1 Total I 1.09 1.23 I 1.60 I 1.68 I 1.68 1.68 Level 2 Total 1.84 I 3.54 I 4.35 I 4.45 I 4.70 4.70 Level 3 Total 2.34 I 4.04 5.12 5.20 5.51 5.45 Cityof Port Orchard Stormwaterand Watersheds Comprehensive Plan October2022 Table A-18. Funding and Staffing Summary by Program Area and Tier. IOne Program Area Tier -Times Ongoing' I Funding Staff Support (hours) Funding Staff Support. (hours/year) FTEc IStormwater Planning I Level $o $0 $0 $0 $20,000 I $20,000 0 0 I 0 320 400 400 o 0 0 I $10,000 I $10,000 I $10,000 482 482 482 7-1 0.27 0.27 I 0.27 I Level 2 Level IPublic Education and Outreach I Level I $0 I $280 I $0 I $o I $o $o 522 964 1,848 o 0 0 0.30 0.30 I 1.05 I Level 2 Level I Public Involvement and Participation Level $o $0 $0 o 0 0 Level 2 Level 3 I MS4 Mapping and Documentation Level $0 $o $0 40 40 40 I $0 I $o I $o 442 1,326 1,326 0.25 0.75 0.75 Level 2 Level I Illicit Discharge Detection and Elimination Level $o $o $o 0 0 0 I $o I $0 $o I $0 I $0 $o I $0 I $0 I $0 I $0 $0 I $0 0 0 0 40 1,sos 1,808 0 0 0 Level 2 Level Controlling Runoff from New Development, Redevelopment, and Construction Sites Level $o $0 $o $0 $0 $0 o o o 200 200 I 200 0 1.02 1.02 Level 2 Level 3 Level Operations and Maintenance I 120 1,888 I 1,888 0 1.07 1.07 Level 2 Level Source Control Program for Existing Development I Level 1 $0 $20,000 $20,000 0 0 0 480 520 520 0.27 0.29 0.29 Level 2 Level ITMDL Requirements Level $0 Level 2 $0 Level $0 0 0 0 I $0 I $0 I $0 442 I 442 442 0 0 0 _ 0 0 0 I 442 884 I 1,326 0 0 I Monitoring and Assessment Level $0 Level 2 $0 Level 3 $0 0 0 0 I $o $o I $0 0 I 0 I Reporting Level $0 Level 2 $o Level $o 0 o o I 100 100 200 $o I $0 I $o $0 I $0 I $0 0 0 I 0 l (Other SWM Support Level $50,000 Level 2 $50,000 Leve13 $150,000 0.25 0.50 0.75 a One-time activities are completed once, such as hiring a consultant to develop new training materials b Ongoing activities occur every year, such as continuing an inspection program or annual review of procedures ° FTE, or Full-time equivalent staff, assumes 1,768 hours worked per year for one full-time staff member City of Port Orchard Stormwaterand Watersheds Comprehensive Plan October2022 December 2022 L`:! HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan APPENDIX B Capital Improvement Program December 2022 ti HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan APPENDIX B.1 Initial Capital Improvement Projects, Problem Descriptions, and Solutions December 2022 L`:! HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan Table 1. Initial Capital Improvement Projects, Problem Descriptions, and Solutions. ID ` Project Name ` Basin ` Problem Description ` Solution ` Phase II Scope a ` Project Type The two existing culverts are undersized for fish Replace undersized culverts with fish passable box culverts Conduct a site assessment to determine the necessary Culvert Retrofits or 1 Anderson Creek Culvert Retrofits Anderson Creek passage and have not been able to be or a bridge. Coordinate the project with water main culvert size. Develop a summary sheet, figure, and Replacement inspected in the past 10 years. replacement on Old Clifton Road. analogous cost estimate. The existing culvert is failing, which is impairing Replace the failing culvert with new modern fish passable Develop a project summary sheet and figure. The details Z Annapolis Creek Culvert Annapolis Creek upstream estuary conditions, and contributing culvert and restoring estuary processes upstream. 30% in the summary sheet and cost estimate will come from Culvert Retrofits or Replacement to local flooding and property damage. design has been completed by Reid Middleton. Currently in design work that is underway. Replacement the process of selecting a preferred alternative. SE Salmonberry Road Lower The existing culvert at SE Salmonberry Road Replace the failing culvert with new modern fish passable Identify a reference reach and conduct a site assessment Culvert Retrofits or 3 Blackjack Creek Culvert Lower Blackjack Creek crossing has collapsed. culvert. Coordinate with Bethel and Sedgwick Road to determine the necessary culvert size. Develop a Replacement Replacement Corridor Stormwater Improvement projects. summary sheet, figure, and analogous cost estimate. Blackjack Creek Floodplain The mainstem of Blackjack Creek and the surrounding floodplain are impaired. The Restore natural channel configuration and floodplain Develop conceptual solution for restoration of fluvial Floodplain and 4 Restoration and Stormwater Lower Blackjack Creek floodplain currently lacks adequate water function on Blackjack Creek to improve Stormwater process and floodplain function, summary sheet, figure, Stream Restoration Management treatment, infiltration, and water storage for low flows. and analogous cost estimate. storage. There are multiple storm outfalls that need Conduct site assessment to confirm existing conditions Outfall Condition 5 Blackjack Creek Storm Outfall Lower Blackjack Creek rehabilitation. The outfalls have inadequate Rehabilitate the outfalls. and develop conceptual solutions. Create a summary Assessment and Assessment and Retrofits energy dissipation, infiltration, and water sheet, figure, and analogous cost estimate. Rehabilitation quality treatment. November 2021 [( HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan Table 1. Initial Capital Improvement Projects, Problem Descriptions, and Solutions. ID ` Project Name ` Basin ` Problem Description ` Solution ` Phase II Scope a ` Project Type Old and undersized stormwater infrastructure is Construct adequately sized stormwater conveyance Conduct hydrologic modeling to size the regional facility. Stormwater Central Sidney Stormwater Downtown -County resulting in frequent flooding of the roadway infrastructure throughout the neighborhood and construct Develop conceptual plan for conveyance system and Conveyance and 6 Improvements Campus and private property. Stormwater runoff a regional facility / stormwater park to provide flow control regional facility location. Create a summary sheet, figure, Water Quality currently discharges untreated to Unnamed and water quality treatment in accordance with current and analogous cost estimate. Treatment Stream negatively affecting aquatic organisms. stormwater requirements. The Downtown -County Campus Basin has The Downtown Basin Stormwater Plan is underway. It Develop project summary sheets and figures for Stormwater 7 Downtown Basin Stormwater Downtown -County inadequate conveyance, water quality includes infrastructure, condition assessment, and approximately five projects. The details in the summary Conveyance and Upgrades Campus treatment, and flow control to manage modeling. The work will define approximately five new sheet and cost estimate will come from the Downtown Water Quality stormwater runoff. capital projects. Basin Stormwater Plan. Treatment Glenwood Road Ruby Creek There are multiple undersized fish barrier Remove undersized culverts and replace with fish passable Conduct a site assessment to determine the necessary Culvert Retrofits or 8 Culvert Replacement Ruby Creek culverts and drainage issues near Glenwood culverts. culvert sizes. Develop a summary sheet, figure, and Replacement Road. analogous cost estimate. Feasibility assessment and alternatives analysis for Johnson Creek Stream There are 18 fish barrier culverts along Johnson realigning Johnson Creek and Port Orchard Boulevard to Conduct field assessment to size the new culverts. Culvert Retrofits or 9 Realignment Johnson Creek Creek, many of which are unnecessary. Johnson restore stream channel function and fish passage. This will Develop a summary sheet, figure, and analogous cost Replacement (Full Creek also has alignment issues. involve removing the 18 culverts and potentially installing estimate. Stream Realignment) fish passable culverts. The Johnson Creek estuary has been filled by Feasibility assessment and alternatives analysis to restore Conduct field assessment to define estuary footprint. 10 Johnson Creek Estuary Johnson Creek development and contains potentially the estuary. Remove two 30" pipes in the easement and Develop a summary sheet, figure, and analogous cost Estuary Restoration Restoration contaminated soils. restore the estuary. This will require property acquisition at estimate. the mouth of Johnson Creek. McCormick Woods Drive Culvert There are three failing culverts along Remove the three failing culverts and replace with fish Conduct field assessment to size the culverts. Create a Culvert Retrofits or 11 Barrier Replacement Anderson Creek McCormick Woods Drive that need to be passable culverts. summary sheet, figure, and analogous cost estimate. Replacement removed and replaced. November 2021 V HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan Table 1. Initial Capital Improvement Projects, Problem Descriptions, and Solutions. ID ` Project Name ` Basin ` Problem Description ` Solution ` Phase II Scope a ` Project Type Stormwater outfalls in the Eastern Shoreline are Confirm number of outfalls on public and private 12 Port Orchard East Shoreline Lower Blackjack Creek not accessible for inspection and maintenance. Acquire access to all shoreline properties east of Rockwell property. Develop a summary sheet, figure, and Shoreline Acquisition Acquisition and Easement Right The shoreline is currently inaccessible to the Park to eastern city limit. analogous cost estimate. public. The Rockwell Area has inadequate water quality treatment. The area also has a high Rockwell Area Stormwater groundwater table and steep grade resulting in Install water quality treatment system(s) for the Rockwell Develop conceptual plan for water quality treatment Water Quality 13 Improvements Lower Blackjack Creek high stormwater flow rates and sediment Area. system(s). Create a summary sheet, figure, and Treatment accumulation at the following intersections: Bay analogous cost estimate. Street and Seattle Avenue; Bay Street and Rockwell Avenue. Ross Creek and the surrounding floodplain are Conduct field assessment to identify locations for beaver 14 Ross Creek Beaver Dam Analogs Ross Creek impaired. The floodplain currently lacks Install beaver dam analogs or other in -stream elements to dam analogs or other in -stream elements along Ross Floodplain and Installation adequate e water storage. improve floodplain connectivity in the most effective areas. Creek. Develop a summary sheet, figure, and analogous Stream Restoration cost estimate. 15 Ross Creek Estuary Restoration Ross Creek The Ross Creek estuary is impaired and there is limited public recreation access at the nearby Restore estuary function and processes in Ross Creek and Develop a summary sheet, figure, and analogous cost Estuary Restoration and Beach Recreation Area beaches. open privately owned beaches for recreation activities. estimate. Shoreline Acquisition Sidney Road SW Ruby Creek There is a failing culvert under Sidney Road SW. Create a summary sheet, figure, and analogous cost 16 Culvert Replacement and Bridge Ruby Creek The culvert is a fish barrier due to a plunge pool Replace the culvert under Sidney Road SW. estimate. The details in the summary sheet and cost Culvert Retrofits or Installation and elevation drop. estimate will come from design work that is underway Replacement (Brian Abbott grant). Silver Creek, a Type F tributary to Blackjack Redirect flow into a deep pipe, trapezoidal channel, or Conduct a site assessment to define a conceptual Floodplain and Stream Restoration 17 Silver Creek Rehabilitation Lower Blackjack Creek Creek, requires rehabilitation to restore its through private property. solution. Develop a summary sheet, figure, and Stormwater original fluvial function. analogous cost estimate. Conveyance November 2021 V HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan Table 1. Initial Capital Improvement Projects, Problem Descriptions, and Solutions. ID ` Project Name ` Basin ` Problem Description ` Solution ` Phase II Scope a ` Project Type 18 South Blackjack Creek Culvert Lower Blackjack Creek a s i There s failing fish barrier culvert under Seda Road. The culvert needs to be Remove culvert under Sedgwick Road and replace with a Conduct site assessment to size the bridge. Develop a Culvert Retrofits or Removal and Bridge Installation removed and replaced. large span bridge. Coordinate with TIP projects. summary sheet, figure, and analogous cost estimate. Replacement Old and undersized stormwater infrastructure is resulting in frequent flooding on Sherman Avenue and private property in nearby cul-de- sacs. There is no visible stormwater conveyance Conduct hydrologic modeling to size the regional facility. 19 South Sidney Regional Facility Lower Blackjack Creek system nearby. Stormwater runoff currently Construct a regional facility that includes infiltration. This Develop conceptual plan for regional facility location. Water Quality discharges untreated to Blackjack Creek project will require property acquisition. Create a summary sheet, figure, and analogous cost Treatment negatively affecting aquatic organisms. There is estimate. also a need for residential pedestrian connectivity between Bravo Terrace and South Sidney. Old and undersized stormwater infrastructure is resulting in localized flooding. There is currently no water quality treatment in the area. Develop conceptual plan for water quality treatment and Stormwater Z� Westbay Stormwater Lower Blackjack Creek Stormwater runoff currently discharges Install stormwater conveyance and water quality treatment conveyance upgrades. Create a summary sheet, figure, Conveyance and Improvements untreated to Sinclair Inlet negatively affecting infrastructure. and analogous cost estimate. Water Quality aquatic organisms. The area has steep slopes Treatment and limited right-of-way, making this a difficult project. November 2021 V HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan APPENDIX B.2 Capital Improvement Project Summary Sheets * HERRERA ORCHARD. HERRERA ' ' i i GMENGINEERS City of Port Orchard Stormwater and Watersheds Com December 2022 City of Port Orchard Stormwater and Watersheds Comprehensive Plan 1 ■ r1 I /1 ■ ■ 1 ■ ■ !1 Problem Description iects i ne existing wood -framed box culvert under Bay Street is deteriorating causing maintenance costs to increase. Flooding occurs in the area due to tidal influences. The 36-inch culvert that connects to the box culvert creates a fish passage barrier. Existing Conditions e rt City of Port Orchard Stormwater and Watersheds Com Project Description Replace existing 36-inch culvert and wood - framed box culvert with a 12-ft wide bottomless concrete box culvert on concrete foundations. Existing utilities will continue to pass through the culvert walls. Permits Required Hydraulic Project Approval (WDFW) USACE Section 404 Permit SEPA DNS Right -of -Way Permit Commercial Permit Critical Areas Documentation Shoreline Permit Estimated Costs Total Construction Cost (2022) $1,200,000 Prioritization Matrix 1 ■ r1 I n ■ ■ 1 ■ ■ r% oncept bite rlan �14 - - - •5 imp. Flood Reduction I Groundwater and Surface I Groundwater and Surface Water Quality Water Quantity 15 0 5 Program Elements (0 - 15 Scale) Habitat Enhancement Infrastructure Operations and Maintenance 10 rf r •rf r I r � N. Public Participation (Education, Outreach, and Involvement) •vf• _+ r r' f II 12' wide box culvert r� ti n Wing walls � � L I� •�I 5x� � �q,L}'� � 5 5.5i � L�� Comprehensive Planning, Administration, and Funding 5 I 0 I 10 Tota I iects O CHARD_ HERRERA ' ' i i GMENGINEERS� October 2022 City of Port Orchard Stormwater and Watersheds Com Existing Site Plan Available S Grades and Elevations • Lower Blackjack Creek No available space without property acquisition Steeper slopes on eastern and southern sides of the property O CHARD. HERRERA ' ' i i GEOENGINEERS 1 ■ r1 I /1 ■ ■ 1 ■ ■ !1 Soils and Groundwater • Mostly Kitsap Silt Loam (Hydrologic Soil Group A) Problem Description iects Old and undersized stormwater infrastructure is resulting in frequent flooding on Sherman Avenue and private property in nearby cul-de-sacs. There is no visible stormwater conveyance system nearby. Stormwater runoff currently discharges untreated to Blackjack Creek negatively affecting aquatic organisms. The neighborhood currently lacks sidewalks and walkability. Existing Conditions Undeveloped Parcel at the South End of Sherman Avenue (Photos Courtesy of Google Earth) Critical Areas • Stream buffer located on the east side of the property Utilities • No known utility conflicts on the property • Multiple ROW utilities (e.g., overhead power, gas, water, sewer) are present October 2022 City of Port Orchard Stormwater and Watersheds Comprehensive Plan -Capital Improvement Projects Project Description Build a new regional stormwater facility on the parcel southeast of Sherman Avenue. The facility will provide centralized flow control and treatment of an approximately 30-acre upstream drainage area extending from Sidney Avenue to Sherman Avenue. The facility could incorporate elements from constructed wetlands, bioretention, and infiltration ponds. The facility will serve as a neighborhood amenity and will enhance aesthetics, biodiversity, and habitat. A combination of surface (swale) and subsurface (piped) stormwater conveyance will be constructed to convey flow to the facility. This project will require property acquisition and facilitate the construction of sidewalks in the neighborhood. Permits Required Hydraulic Project Approval (WDFW) USACE Section 404 Permit SEPA DNS Estimated Costs Total design + permitting + construction cost does not include property acquisition. Total Design + Permitting + Construction Cost (2022) $3,500,000 SW BERRY LAKE RD '. Capital Improvement Projecl�, _ Q Stormwater Structures Outfalls Port Orchard City Urnits • r, Proposed Stormwater Regional Fad ity Property to be Acquired Conveyance Proposed Conveyance Parcels Strums c` Kitsap County Wetlands LU FEMA Flood Zones W TWO (5ft) 4 212.5 425 850 Feet Prioritization Matrix Program Elements (0 -15 Scale) Flood Groundwater and Groundwater and Habitat Infrastructure Public Participation Comprehensive Planning, Reduction Surface Water Surface Water Enhancement Operations and (Education, Outreach, Administration, and Total Quality Quantity Maintenance and Involvement) Funding 5 1 15 1 10 1 10 0 1 15 1 15 70 �ofrt 4%-1 ORCHARD- HERRERA ' ' i i GMENGINEERS� October 2022 City of Port Orchard Stormwater and Watersheds Comprehensive Plan -Capital Improvement Projects Existing Site Plan �/ Sinclair 60 Inlet i �F f • `� •' -p � � , � Ca pika I improvement Projects F ` O Stormwater Structures C)utfalls AL ROBERT Streams COnVeyanCe _ l 1 ti• ; . Wateftdies Roads - APE :AC Parcels s,f7_Strrn . i _ itsap County Wetlands FEMA Flood Zones - Port Orchard City I imits �BMW Basin Available Space Grades and Elevations Soils and Groundwater Critical Areas Util Downtown -County • Public Road ROWs • Steep slopes in the upper • Site soils consist of Harstine Stream channel Existing water, sewer, and Campus Basin • City owned parking lots in part of the basin gravelly ashy sandy loam in the Shoreline storm pipes throughout the marina and boat launch • Flatter grades north of upper basin basin Bay Street • Urban land-Alderwood in the lower basin L CHAR[). R HERRERA ' ' + i GEOENGINEERSr Problem Description Most of the stormwater from the basin discharges to Sinclair Inlet without treatment. Some of the existing infrastructure is under capacity and pipe routing is inefficient. Flooding of the lower basin occurs during high tide events. Downtown Basin October 2022 Q CHARD- � HERRERA ' GEOENGINEERS� October 2022 City of Port Orchard Stormwater and Watersheds Com Project Description Install tide gates in new manhole structures at all outfall pipes directly discharging into Sinclair Inlet. Install water quality vaults in centralized locations to collect and treat stormwater runoff. Replace and reconfigure convoluted storm pipe systems to new water quality facilities. Remove smaller pipe outfalls prone to tidal flooding. Install optional detention vault (2500 CF) to reduce flooding during large tidal and storm events. This project aligns with the Downtown Subarea Plan and Community Events Center (CEC), and is related to the federal funding to improve Bay Street in Downtown Port Orchard. Permits Required Right -of -Way Permit Commercial Permit Estimated Costs Total Design + Permitting + Construction Cost (2022) $1, 760,000 Prioritization Matrix Flood Reduction 15 Groundwater and Surface Water Quality 15 �� v 6 -! r w. 4T 7VI,1 a 44 F ! 4 Groundwater and Surface Water Quantity 111 Program Elements (0 - 15 Scale) Habitat Enhancement X Infrastructure Operations and Maintenance Nue iects STORM PIPE (EXISTING) STORM PIPE (PROPOSED) CATCH BASIN (EXISTING) CATCH BASIN (PROPOSED) . MANHOLE W/ TIDE GATE ® DETENTION VAULT 0 (OPTIONAL) OP WATER QUALITY VAULT PUMP STATION MANHOLE X ABANDON STORM OUTFALL I NOT TO SCALE Public Participation Comprehensive Planning, Total (Education, Outreach, and Administration, and Funding Involvement) 0 1 15 1 55 rpk2t 4%-1 ORCHARD.HERRERA ' ' i i GEOENGINEERS� October 2022 City of Port Orchard Stormwater and Watersheds Com Project Description Install tide gates in new manhole structures at all outfall pipes directly discharging into Sinclair Inlet. Install water quality vaults in centralized locations to collect and treat stormwater runoff. Replace and reconfigure convoluted storm pipe systems to improve function and maintenance. Install optional detention vaults (2500 CF) to reduce flooding during large tidal and storm events. This project aligns with the Downtown Subarea Plan and Community Events Center (CEC), and is related to the funding to improve Bay Street in Downtown Port Orchard. Permits Required Right -of -Way Permit Commercial Permit Estimated Costs Total Design + Permitting + Construction Cost (2022) $970,000 (Near City Hall) or $1,100,000 with Optional Detention $982,000 (Near Kitsap County Courthouse) Prioritization Matrix Flood Reduction Groundwater and Surface Water Quality 15 15 Concept Site Plan r LAUNCH lb 1 1 � � ROBERT GEIGER ST ItCITY r S KITSAP ST i + .00 7 ■�� . O! NOT TO SCALE ; :.- a Program Elements (0 - 15 Scale) Groundwater and Surface Water Quantity 0 Habitat Enhancement Infrastructure Operations and Maintenance I 10 iects = • .. DIVISION S ' i W LEGEND STORM PIPE (EXISTING) +� �'+ STORM PIPE (PROP.) ZOO CATCH BASIN (EXISTING) A� ■ CATCH BASIN (PROP.) MANHOLE W/TIDE GATE VZ?= DETENTION VAULT _ „♦ i Q WATER QUALITY VAULT • KITSAP COUNT , COMPLEX ' �t r � • , 5J .: y `v 3 5 Public Participation Comprehensive Planning, Total (Education, Outreach, and Administration, and Funding Involvement) C 15 55 Pqg 4%-1 ORCHARD.HERRERA ' ' i i GEOENGINEERS� October 2022 City of Port Orchard Stormwater and Watersheds Com 1 ■ r % I /1 ■ ■ 1 ■ ■ !1 iects Problem Description Existing 8' wide CMP elliptical culvert has a damaged inlet and rusted bottom and is a partial fish barrier. Existing Conditions Rusted culvert outfall with short water surface drop Geotextile fabric -lined upstream right bank Oqm CHARD. HERRERA ' ' i i GMENGINEERS October 2022 City of Port Orchard Stormwater and Watersheds Com Project Description Replace existing culvert under Sidney Road SW with a proposed bottomless 14-ft wide box culvert using trenchless methods for installation. This project aligns with the Ruby Creek Subrea Plan and Parks Plan. Permits Required Hydraulic Project Approval (WDFW) USACE Section 404 Permit SEPA DNS Right -of -Way Permit Commercial Permit Critical Areas Documentation Estimated Costs Total Design + Permitting + Construction Cost (2022) $1, 600,000 Prioritization Matrix Existing Pavement Concrete Approach Deck High Flow Low Flow Channel i Channel Section 1600 4 4 _ 36 sa 52 1 ■ r"% I n ■■ 1 ■ ■ n 50 1,000 1,100 1,2D0 Program Elements (0 - 15 Scale) Flood Reduction Groundwater and Surface Groundwater and Surface Habitat Enhancement Infrastructure Public Participation Comprehensive Planning, Total Water Quality Water Quantity Operations and (Education, Outreach, and Administration, and Funding Maintenance Involvement) 5 0 5 10 5 0 10 35 o Sidney Road Crossing Proposed bridge Distance (ft) from Blackjack Creek Confluence 1,300 1.400 .5C0 1 c• iects 1.700 1,800 1,904 2,000 �ofrt 4%-1 ORCHARD.HERRERA ' ' + i GMENGINEERS� October 2022 City of Port MT Orchard Stormwater and Watersheds Com Existing Site Plan 1 ■ r1 I /1 ■ ■ 1 ■ ■ !1 Problem Description iects Johnson Creek and its estuary were piped and filled during development of Port Orchard. Estuary habitat has been completely lost and fish passage is difficult at best. Several businesses and houses as well as SR 166 are built over the fill. Multiple major utility lines are routed along SR 166. Downstream of culvert under public dock � yIIl r ► 1 .0 lip , r4l I � r 2022 O CHARD. HERRERA ' ' i i GEOENGINEERS� October 2022 City of Port To Orchard Stormwater and Watersheds Com Project Description Restoration of the Johnson Creek Estuary will require acquisition of multiple properties prior to removal of structures and fill from the nearshore. Coordination with WSDOT will be required for construction of a bridge on SR 166, replacement of existing utility lines, and connection of pedestrian access to the public pier. Additional investigation of the stability of Port Orchard Boulevard will be required. The central location and nearby parking makes the estuary an excellent location for walkways, overlooks, and educational opportunities. This project aligns with the Downtown Subarea Plan and Parks Plan. Permits Required Hydraulic Project Approval (WDFW) USACE Section 404 SEPA DNS Right -of -Way Permit Cultural Resources (DHAP) Critical Areas Documentation Shoreline Permit Estimated Costs Total Cost(2022) Property Acquisition and Easements: $2,500,000 Planning, Design, and Permitting: $1,000,000 Construction: $2,500,000 Total Project Cost: $6,000,000 Prioritization Matrix 1 ■ r1 I /1 ■ ■ 1 ■ ■ !1 Program Elements (0 - 15 Scale) Flood Reduction Groundwater and Groundwater and Surface Habitat Enhancement Infrastructure Public Participation Surface Water Quality Water Quantity Operations and (Education, Outreach, Maintenance and Involvement) 5 10 5 15 10 10 Comprehensive Planning, I Total Administration, and Funding 15 1 70 iects ORCHARD.:! HERRERA ' • i i GWENGINEERS City of Port Orchard Stormwater and Watersheds Com Existing Site Plan 1 ■ r1 I /1 ■ ■ 1 ■ ■ !1 Problem Description iects Previous work to convey stream channel under Salmonberry Road and through private property with a culvert has failed. Flooding occurs at the Salmonberry Road crossing. The culvert across the site is damaged and caused sinkhole on the property. Drainage fix with temporary relief channel and piping is not functioning properly. Sinkhole on property from damaged culvert CHARD October 2022 City of Port Orchard Stormwater and Watersheds Comprehensive Plan -Capital Improvement Projects. Project Description Remove and replace existing crossing culverts under SE Salmonberry Road with new storm conveyance system. New storm pipe system to extend from channel outfall to an existing swale channel west of the crossing. The swale drains to the Blackjack Creek tributary channel. It's anticipated that a fish passage culvert is not required since fish habitat only occurs north of SE Salmonberry Road. This project is adjacent to the City's Bethel and Sedgwick Road Corridor Plan. Permits Required Hydraulic Project Approval (WDFW) USACE Section 404 Permit SEPA DNS Right -of -Way Permit Commercial Permit Critical Areas Documentation Estimated Costs Total Design + Permitting + Construction Cost (2022) $300,000 Prioritization Matrix oncept bite Tian v, LEGEND STORM PIPE (EXISTING) r== r'. •" ' STORM PIPE (PROPOSED) !'� ' +• CATCH BASIN (EXISTING).��. « �. 4 � .^. w �� ti j • Y. '� � a f CATCH BASIN (PROPOSED) • y L I� y r DRAINAGE SWALE (EXIST) -------r '� .! 4 POND/STREAM (EXIST) 4l" ► 4 � � _. Aj IF r� M � I Roadway SE SALMONBERRY RD Overflow Water Surface .�. � Normal w.5. Weir Opening Existing Channel'' { Ponded Ilk Area New Storm Profile Proposed storm structures and storm pipe Not to scale Program Elements (0 - 15 Scale) Flood Reduction Groundwater and Surface Groundwater and Surface Habitat Enhancement Infrastructure Public Participation Comprehensive f Water Quality Water Quantity Operations and (Education, Outreach, and Administration, an Maintenance Involvement) 15 0 5 5 I 10 0 I 5 1 'fanning, Total d Funding 40 City of Port Orchard Stormwater and Watersheds Com Existing Site Plan } EXISTING FiOMPLAIN1. - f _°ti I TO REMAIN r 5B5 REVI°H]N„ Basin habitat, but limited floodplain and wetland connectivity. ifSA� :t so PROPOSED FLOODPLAIN RESTORATION {-12.5 AC) V 1 1T \ h BLACKJAC44 � 1 f x i - i i 6 , ---------------- SBL U y5 w Ti 941 to to SlC}NEY Ra SW is5 _I Available Space Grades and Elevations Soils and Groundwater habitat, designated throughout open space, are dominated by Kitsap FEMA Flood Zone west of with slope upward silt loam and Bellingham Blackjack Creek. towards Sidney Road SW. silty clay loam. 'HERRERA ' ' i I . i GEOENGINEERS� Legend: 0 Existing Floodplain Proposed Floodplain Restoration Existing Stream Location (Approximate) �l Critical Areas wetlands; Chinook and chum salmon and steelhead stream use; and FEMA flood zone. }! Q SLnk m Fm Utilities along SW Sedgwick Road. iects Problem Description Existing reach of Blackjack Creek is confined along eastern edge of the open space with minimal floodplain and wetland connectivity. While the stream channel has good riparian cover, vegetation throughout the property is a mix of native and invasive species. A rock dam located approximately 50 feet upstream from the confluence with Ruby Creek likely contributes to the observed backwatered conditions and supports established wetlands within the floodplain. Existing Conditions C Adjacent floodplain and wetland habitat October 2022 � HERRERA ' ' i i GMENGINEER QRCHARD. � S� October 2022 City of Port Orchard Stormwater and Watersheds Com Project Description The main objective of the project is to increase floodplain connectivity. The project includes creating alluvial streambeds for off channel habitat with depressional water storage and placing large woody debris on Blackjack and Ruby Creeks. A mix of coniferous trees and riparian understory will be planted to create a wetland forest complex. This project was designed by the City of Port Orchard. It may be impacted by upcoming work by the Washington Department of Transportation and Kitsap Transit on State Road (SR) 16 and SR 16 Park and Ride, respectively. Permits Required Section 7 ESA Consultation and Magnuson -Stevens Fishery and Conservation Act Section 106 Review SEPA DNS Hydraulic Project Approval (WDFW) USACE Section 404 Permit Critical Areas Documentation Estimated Costs Total Cost (2022) Planning, Design, and Permitting: $1,000,000 Construction: $5,000,000 Property Acquisition: $1,000,000 Total Project Cost: $7,000,000 Prioritization Matrix Flood Reduction Groundwater and Surface Water Quality I Concept Site Plan { EXISTING FLOODPLAIN j� TO REMAIN y. „g sa HUUY CHLL.,', Groundwater and Surface Water Quantity 15 1� yt� BLACKJACK CREEK 5�3 L o . iects Legend: 441A Large Woody Debris Floodplain Assemblage Depressional Water Storage 1 Wetland r' Complex with Wetland Plant Mix � A -� — Alluvium Streambed s�o Coniferous Trees (CedariFir]Hem Mix) 1 Riparian Llnderstory Planting Mix Existing Stream Location (Approximate) !I F I1" ♦ � �� All • i t _ SOL it 5. is � SIDM1IEY Rp 5W 535 .a '1 a. , m F« Proposed Site Plan City of Port Orchard — F.6.27. _% 'f„ C,FEno Floodplain Rmiaralion Projec 216 P'PLstrel C�3.00�� Pert Orchard, WA 98366 Blackjack Creek tiLEsEo 4 pF 5 Program Elements (0 - 15 Scale) Habitat Enhancement Infrastructure Operations Public Participation Comprehensive Planning, Total and Maintenance (Education, Outreach, and Administration, and Funding Involvement) 15 I 0 5 5 I 55 met (VHERRERA ' • i i -ORCHARD. GEOENGINEERS� October 2022 City of Port Orchard Stormwater and Watersheds Com Existing Site Plan ' c`t . Culvert to be replaced Capital Improvement Projects - •--�•.- - r rv.. -; F ' , Stormwater Structures i.. SW SEDOWICK Ra `'�� ' � Topo (5fk) 7riJ [n�ck1{iiti Creeds f Str2dr1'15 Conveyance • - , F Roads n Parcels Kitsap County Wetlands FEMA Flood Zones Q Port Orchard City Limits Site Cha tics and Constraints , . 0 30 60 120 Basin Available Space Grades and Elevations Soils and Groundwater Critical Areas Utilities • Productive fish stream, areas of Need temporary grades Bellingham silty clay channel, FEMA within SW Sedgwick ditched channel through pasture construction easements • Less than 5 feet of loam flood zone, and Road and un-channelized wetland on private property pipe cover overbank wetlands Storm culverts present t P ro i e cts Problem Description Existing CMP culvert is undersized for the site and restricts ecological and floodplain function. SW Sedgewick Road Stream channel stretch upstream of crossing Culvert inlet O CHARD_ HERRERA '' r r i i GMENGINEERS October 2022 City of Port Orchard Stormwater and Watersheds Comprehensive Plan -Capital Improvement Projects Project Description rceplace existing culvert under SW Sedgwick Road with a bridge structure (40'x26'). A wider structure may be necessary to accommodate upstream debris potential and floodplain backwater effects. Further geomorphic investigation will be needed to access the stream sediment debris concerns. Permits Required Hydraulic Project Approval (WDFW) USACE Section 404 Permit SEPA DNS Right -of -Way Permit Commercial Permit Critical Areas Documentation Estimated Costs Total Design + Permitting + Construction Cost (2022) $1,600,000 Prioritization Matrix Flood Reduction 5 Existing Pavement Bridge Deck Groundwater and Surface Groundwater and Surface Water Quality Water Quantity 15 10 -High Flow Low Flow Channel Channel Section L. Concrete Approach SW Sedgwick Road _ *2200 "j Proposed bridge 53 52 51 50 Sedgwick Road Crossing 1,800 1,850 1,900 1,950 2 2,050 .7,100 2,150 2,200 2,250 —Distance (ft) #rC-Feed C�tec� Program Elements (0 - 15 Scale) Habitat Enhancement Infrastructure Public Participation Comprehensive Planning, Operations and (Education, Outreach, and Administration, and Funding Maintenance Involvement) I: X FiN 2,300 2,350 2,400 Tota I �ofrt 4%-1 ORCHARD- HERRERA ' ' i i GMENGINEERS� October 2022 City of Port Orchard Stormwater and Watersheds Com Existing Site Plan Basin • Downtown -County Basin ILJ�1 Givens Playfield Available Space • Available space is located near existing ditch and underneath the baseball fields P. I SE V-< IP U) a_ w N Grades and Elevations • Steeper slopes on eastern and southern sides of Givens Playfield capital Irnprovernent Projects 0 Stormwater Structures Topo (5ft) — Streams Conveyance Roads Pa reels FEMA Flood Zones Q Port: Orchard City Limits Soils and Groundwater • Mostly Harstine gravelly ashy sandy loam (Hydrologic Soil Group C) O 110 22-0 440 C Critical Areas • No critical areas iects Problem Description Old and undersized stormwater infrastructure in the vicinity of Givens Playfield is resulting in frequent flooding of the roadway and private property. Stormwater runoff currently discharges untreated to Unnamed Stream (not shown) negatively affecting aquatic organisms. Existing Conditions • Existing stormwater ditch flows south to north through Givens Playfield • Overhead powerlines may be in conflict rth) Other • Givens Playfield is owned bythe City of Port Orchard �ofit ORCHARD. HERRERA ' ' i i GEOENGINEERS� October 2022 City of Port Orchard Stormwater and Watersheds Com Project Description Construct a bioswale through Givens Playfield to help convey flow and treat stormwater. Install new synthetic turf with a subsurface drainage system at Givens Playfield to provide additional flow control in accordance with current stormwater requirements. Design Precedents IT, 0.5-1.0% Slope Band Fine Gravel Subsurface Drainage Example (Courtesy of Pacific Northwest Extension) Bioswale Example Estimated Costs Total design + construction + permitting cost does not include lights, fencing, dugouts, walkways, and emergency vehicle access. Total Design + Permitting + Construction Cost (2022) $4,000,000 A . A - . r\■ Prioritization Matrix iects FProgram Elements (0 - 15 Scale) Flood Groundwater and Groundwater and I Habitat Infrastructure Public Participation Comprehensive Planning, Total Reduction Surface Water Surface Water Enhancement Operations and (Education, Outreach, Administration, and Quality Quantity Maintenance and Involvement) Funding 5 10 10 10 0 10 10 55 O CHARD. HERRERA ' ' i i GMENGINEERS� October 2022 City of Port Orchard Stormwater and Watersheds Com Existing Site Plan iects Problem Description The existing 36-inch concrete culvert is undersized and submerged due to upstream and downstream beaver activity, creating backwater conditions through the crossing. Existing Conditions Wetland and stream conditions looking downstream from the crossing outlet qo O CHARD. HERRERA ' ' i i GMENGINEERS� October 2022 City of Port Orchard Stormwater and Watersheds Comprehensive Plan -Capital Improvement Projects. Project Description Replace existing 36-inch culvert with a bridge structure or large arch/box culvert to accommodate fish and wildlife passage through the crossing. A larger structure sized to accommodate flow, debris, and sediment transport during high flow events, including potential failure of the beaver dam will provide long-term resilience to local infrastructure and restore natural ecological processes. Structure size likely 25 - 35 feet to accommodate geomorphic setting with wetlands and beaver activity. Permits Required Hydraulic Project Approval (WDFW) USACE Section 404 Permit SEPA DNS Right -of -Way Permit Commercial Permit Critical Areas Documentation Estimated Costs Total Design + Permitting + Construction Cost (2022) $1, 600,000 Prioritization Matrix oncept Site Plan Existing Pavement Brid a Deck —High Flow 4 Low Flow Channel is Channel Section 122 0 120 w 118 116 0 Concrete Approach Optional Wildlife Crossing Bench 50 100 150 200 Program Elements (0 - 15 Scale) Flood Reduction Groundwater and Surface Groundwater and Surface Habitat Enhancement Infrastructure Water Quality Water Quantity Operations and Maintenance 5 1 0 1 5 I 10 1 5 9 250 Public Participation (Education, Outreach, and Involvement) IN Beaver Dam 30o 350 400 450 Comprehensive Planning, Total Administration, and Funding 5 I 30 �ofrt ORCHARD. HERRERA ' ' i i GMENGINEERS� October 2022 APPENDIX B.3 Prioritization Results HERRERA ORCHARD. HERRERA ' ' i i GMENGINEERS South Blackjack Central Sidney Downtown Basin SE Salmonberry South Blackjack Anderson Creek Annapolis Creek Creek Stormwater Stormwater Johnson Creek Ruby Creek Culvert Road, Lower Creek Culvert South Sidney Culvert Retrofits Culvert Replacement Restoration Restoration o Improvements Upgrades Estuary Restoration Replacement Blackjack Creek Removal and Bridge Regional Facility Culvert Replacement Installation Groundwater and Groundwater and Groundwater and Groundwater and Habitat Habitat Goals and Outcomes Primary Criteria Flood Reduction Surface Water Flood Reduction Surface Water Surface Water Flood Reduction Surface Water Flood Reduction Enhancement Quality Quality Quality Enhancement Quality Flood Reduction Outcomes Points Prevents property damage caused by flooding or damage to other utilities 15 15 15 15 15 Prevents flooding of a major street (arterial or larger) 10 10 Prevent flooding of a low -volume street or improves City's ability to respond to flood 5 5 5 5 5 5 events or minor nuisance flooding No impact to flood reduction 0 Groundwater and Surface Water Quality Improvement Outcomes Points Major water quality improvements for receiving water bodies 15 15 15 Moderate water quality improvements for receiving water bodies or improves City's ability to control pollutants and perform water quality improvement activities 10 10 10 Minor water quality improvements for receiving water bodies 5 No water quality improvements for receiving water bodies 0 0 0 0 0 0 0 Groundwater and Surface Water Quantity Improvement Outcomes Points Major improvements to summer streamflow and/or groundwater supply 15 15 Moderate improvements to summer streamflow and/or groundwater supply 10 10 10 Minor improvements to summer streamflow and/or groundwater supply 5 5 5 5 5 5 5 No improvements to summer streamflow and/or groundwater supply 0 0 Habitat Enhancement Outcomes Points Corrects a significant fish passage barrier or creates significant habitat 15 15 15 Corrects a fish passage barrier (but immediate benefits are limited due to other barriers) or creates a moderate amount of new habitat/public amenity 10 10 10 10 10 10 Minor improvements to habitat or public amenity 5 5 5 No habitat enhancement 0 0 Infrastructure Operations and Maintenance Outcomes Points Major reduction level of effort needed by operations and maintenance 15 Moderate reduction of level of effort needed by operations and maintenance 10 10 10 10 Minor reduction of level of effort needed by operations and maintenance 5 5 5 5 5 No benefit to operations and maintenance personnel 0 0 0 0 Public Participation (Education, Outreach, and Involvement) Outcomes Points High-level opportunity for public participation 15 15 Mid -level opportunity for public participation 10 10 10 Limited opportunity for public participation 5 5 No opportunity for public participation 0 0 0 0 0 0 0 Comprehensive Planning, Administration, and Funding Outcomes Points Strong candidate for external funding (e.g., fish passage grant, water quality grant, transportation grant) 15 15 15 15 Average candidate for external funding (e.g.,fish passagegrant, water quality grant, transportation grant) 10 10 10 10 10 Weak candidate for external funding (e.g., fish passage grant, water quality grant, transportation grant) 5 5 5 5 Not a candidate for external funding 0 TOTAL SCORE 30 45 55 55 55 70 35 40 35 70 RANK 10 6 3 3 3 1 8 7 8 1 December 2022 City of Port Orchard Stormwater and Watersheds Comprehensive Plan City of Port Orchard Stormwater and Watersheds Comprehensive Plan October 2022 APPENDIX B.4 Level 2 and Level 3 Implementation Schedules (Lkij HERRERA City of Port Orchard Stormwater and Watersheds Capital Improvement Program (CIP) Projects Stormwater and Watersheds Long-term CIP Project Implementation Schedule Herrera Environmental Consultants Level 2 includes: Implementation of all projects within 20 years Moderate grant funding. (projects would not proceed without grants) Earlier implementation of Johnson Creek Estuary Restoration (begin 2027) and Downtown Basin Stormwater Upgrades (2024) Infrastructucture rehab replacement funding increases to $1M+ per year in 2024 and continues through 2042 - Downtown Basin Plan Implementation and then $1M per year for ongoing conveyance system rehab / replacement No funding for projects that are not currently defined aside from infrastructure rehab above. Costs in 2022 dollars. Project Name (Prioritization Score) 2023 2024 2025 A 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 Total Cost to City South Sidney Regional Facility (70) $700,000 $2,800,000 South Sidney Regional Facility (70) - SFAP Grant 50% -$350,000 -$1,400,000 Johnson Creek Estuary Restoration (70) $2,500,000 $500,000 $500,000 $2,500,000 Johnson Creek Estuary Restoration - Estuary restoration, floodplains by design grant 50% -$1,250,000 -$250,000 -$250,000 -$1,250,000 South Blackjack Creek Floodplain Restoration (55) $1,000,000 $1,000,000 $5,000,000 South Blackjack Creek Floodplain Restoration - Salmon Recovery 50% -$500,000 -$500,000 -$2,500,000 Downtown Basin Stormwater Upgrades (55) l$1,760,000 $1,100,000 $982,000 Downtown Basin Stormwater Upgrades - Low Interest Loan Ongoing Conveyance System Rehab / Replacement Program $100,000 $100,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 Central Sidney Stormwater Improvements (55) $500,000 $3,500,000 Central Sidney Stormwater Improvements - SFAP Grant 50% -$250,000 -$1,750,000 Annapolis Creek Culvert Replacement (45) $400,000 $800,000 Annapolis Creek Culvert Replacement - Brian Abbott Grant 50% -$200,000 -$400,000 SE Salmonberry Road, Lower Blackjack Creek Culvert Retrofit (40) $300,000 None South Blackjack Creek Culvert Removal and Bridge Installation (35) $400,000 $1,200,000 South Blackjack Creek Culvert Removal and Bridge Installation - Fish Passage Grant (TBD) 50% -$200,000 -$600,000 Ruby Creek Culvert Replacement (35) $400,000 $1,200,000 Ruby Creek Culvert Replacement - Brian Abbott Grant 50% -$200,000 -$600,000 Anderson Creek Culvert Replacement (30) $400,000 $1,200,000 Anderson Creek Culvert Replacement - Fish Passage Grant (TBD) 50% -$200,000 -$600,000 TOTAL -Cost to City (CIP Cost -Grant Funding) $100,000 $2,410,000 $1,500,000 $2,382,000 $2,450,000 $1,850,000 $1,250,000 $2,250,000 $1,300,000 $1,000,000 $1,500,000 $1,500,000 $3,700,000 $1,600,000 $1,250,000 $2,750,000 $1,200,000 $1,600,000 $1,000,000 $1,000,000 $33,592,000 December 2022 City of Port Orchard Stormwater and Watersheds Comprehensive Plan 12/15/2022 1/1 City of Port Orchard Stormwater and Watersheds Capital Improvement Program (CIP) Projects Stormwater and Watersheds Long-term CIP Project Implementation Schedule Herrera Environmental Consultants Level 3 includes: Implementation of all projects within 6 years. No grant funding. Infrastructucture rehab replacement funding of $1M per year begins in 2028 and continues through 2042. No funding for projects that are not currently defined aside from infrastructure rehab above. Costs in 2022 dollars. Project Name (Prioritization Score) 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 Total Cost to City South Sidney Regional Facility (70) $700,000 $700,000 $2,100,000 Johnson Creek Estuary Restoration (70) $2,500,000 $500,000 $500,000 $2,500,000 South Blackjack Creek Floodplain Restoration (55) $1,000,000 $5,000,000 Downtown Basin Stormwater Upgrades (55) $1,760,000 $1,100,000 $982,000 Ongoing Conveyance System Rehab / Replacement Program $100,000 $100,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 Central Sidney Stormwater Improvements (55) $500,000 $3,500,000 Annapolis Creek Culvert Replacement (45) $400,000 $800,000 SE Salmonberry Road, Lower Blackjack Creek Culvert Retrofit (40) $300,000 South Blackjack Creek Culvert Removal and Bridge Installation (35) $400,000 $1,200,000 Ruby Creek Culvert Replacement (35) $400,000 $1,200,000 Anderson Creek Culvert Replacement (30) $400,000 $1,200,000 1TOTAL 1 $100,0001 $3,300,0001 $3,960,0001 $9,200,0001 $8,582,0001 $5,700,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $1,000,0001 $44,842,000 12/15/2022 1/1 December 2022 HERRER4 City of Port Orchard Stormwater and Watersheds Comprehensive Plan APPENDIXC Stormwater Management Action Plan December 2022 04 HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan CITY OF PORT ORCHARD STORMWATER MANAGEMENT ACTION PLAN Prepared for City of Port Orchard Prepared by Herrera Environmental Consultants, Inc. (NJA- HERRERA Note: Some pages in this document have been purposely skipped or blank pages inserted so that this document will print correctly when duplexed. CITY OF PORT ORCHARD STORMWATER MANAGEMENT ACTION PLAN Prepared for Zack Holt City of Port Orchard 216 Prospect Street Port Orchard, Washington 98366 Prepared by Herrera Environmental Consultants, Inc. 2200 Sixth Avenue, Suite 1100 Seattle, Washington 98121 Telephone: 206-441-9080 October 24, 2022 CONTENTS Purpose...............................................................................................................................................................................1 Background....................................................................................................................................................................... 3 Watershed Prioritization Summary ...........................................................................................................................5 Lower Blackjack Creek Watershed Function................................................................................................ 5 CatchmentConditions..........................................................................................................................................8 Land Use and Future Growth.................................................................................................................8 StormwaterInfluence...............................................................................................................................8 Stormwater Management Actions............................................................................................................................9 Process to Identify Stormwater Management Actions............................................................................9 Strategic Stormwater Retrofit Projects.......................................................................................................... 9 LandManagement Strategies.........................................................................................................................12 Stormwater Program Enhancements............................................................................................................13 Illicit Discharge Detection and Elimination Field Screening.....................................................13 Source Control Program for Existing Development....................................................................13 Operationsand Maintenance..............................................................................................................13 Public Education and Outreach..........................................................................................................14 Changesto Long Range Plans........................................................................................................................14 Budgetand Schedule..................................................................................................................................................15 Future Assessment and Feedback..........................................................................................................................17 References.......................................................................................................................................................................19 APPENDICES Appendix A Project Summary Sheet: South Sidney Regional Facility Appendix B Project Summary Sheet: South Blackjack Floodplain Reconnection Project %HERRERA TABLES Table 1. City of Port Orchard Lower Blackjack Creek Catchment A Stormwater Retrofit Projects.........................................................................................................................................................12 Table 2. City of Port Orchard Lower Blackjack Creek Catchment A Land Management Strategies.....................................................................................................................................................12 Table 3. City of Port Orchard Lower Blackjack Creek Catchment A Stormwater Program Enhancements...........................................................................................................................................14 Table 4. Lower Blackjack Creek Catchment A Stormwater Management Actions Scheduleand Cost Summary...............................................................................................................16 FIGURES Figure 1. Lower Blackjack Creek Catchment AOverview Map.....................................................................7 Figure 2. Lower Blackjack Creek Catchment A Stormwater Projects.......................................................11 4 HERRERA sw 20-07401-001_smap-cityofportorchard_20221024.docx sw 20-07401-001 smap-cityofportorchard_20221024.docx PURPOSE The City of Port Orchard (City) Stormwater Management Action Plan (SMAP) is prepared pursuant to requirements of S5.C.1.d.iii of the 2019 -2024 Western Washington Phase II National Pollutant Discharge Elimination System (NPDES) Stormwater Permit issued by the Washington Department of Ecology (Ecology). The Plan is organized according to the permit language and identifies the following for the high priority catchment located in the Lower Blackjack Creek watershed: A description of the stormwater facility retrofits needed for the area, including the best management practice (BMP) types and preferred locations. Land management/development strategies and/or actions identified for water quality management. Targeted, enhanced, or customized implementation of stormwater management actions related to permit sections within S5, including: Illicit discharge detection and elimination (IDDE) field screening, Prioritization of Source Control inspections, Operations and Maintenance (O&M) inspections or enhanced maintenance, or Public Education and Outreach behavior change programs. If applicable, identification of changes needed to local long-range plans, to address SMAP priorities. A proposed implementation schedule and budget sources for: Short-term actions (i.e., actions to be accomplished within six years), and Long-term actions (i.e., actions to be accomplished within seven to 20 years). A process and schedule to provide future assessment and feedback to improve the planning process and implementation of procedures or projects. October 2022 (kii HERRERA City of Port—Orchard—Stormwater Management Action Plan BACKGROUND The City completed the "City of Port Orchard Watershed Inventory and Assessment" March 21, 2022 (Herrera 2022a) and the "City of Port Orchard Watershed Prioritization" June 22, 2022 (Herrera 2022b). Additionally, the City is in the process of developing their "Stormwater and Watersheds Comprehensive Plan", anticipated in 2023. This SMAP will be incorporated within the stormwater comprehensive planning process when developing programmatic and capital improvement programs. Additionally, much of the watershed data and analysis conducted for meeting the SMAP permit requirements will serve to better understand stormwater pressures upon water resources on a watershed basis. October 2022 dit HERRERA City of Port—Orchard—Stormwater Management Action Plan WATERSHED PRIORITIZATION SUMMARY Eighteen watersheds were originally identified during the first step of the City's watershed inventory. Thirteen watersheds were removed from the prioritization process due to low or no City stormwater influence or because the watershed was smaller than the 400 acre size threshold identified by Ecology in their SMAP guidance (Ecology 2019). The remaining five candidate watersheds were subjected to a prioritization and scoring process. The prioritization process resulted in selection of Lower Blackjack Creek watershed as the highest priority watershed based on the following characteristics: High receiving water use support Moderate level of development and future growth Good water and habitat condition Highest jurisdiction control Promotes other plans and projects, most notably the Blackjack Creek Watershed Assessment Plan and Protection and Restoration Plan (ESA 2017). LOWER BLACKJACK CREEK WATERSHED FUNCTION Lower Blackjack Creek watershed processes are considered "functioning" for hydrologic regime, sediment regime, riparian areas and wetlands, nutrient supply, floodplain channel interactions, habitat connectivity, fish passage and water quality (ESA 2017). Organic matter input is rated "Moderately Impaired" However, elevated summer stream temperatures and low dissolved oxygen levels are a concern. Lower Blackjack Creek supports an abundance of salmonid species. The creek supports spawning and rearing activity for fall and summer chum and coastal cutthroat trout. The stream corridor supports migration of coho salmon to extensive upper watershed areas for spawning and rearing. Blackjack Creek is included in the area for endangered species for fall Chinook and winter steelhead. Lower Blackjack Creek stream health is good based upon aquatic insect scores. Aquatic insect diversity is monitored at multiple locations within the Lower Blackjack Creek watershed. This benthic index of biotic integrity (B-IBI) and many of the sub -indexes are strongly correlated with stormwater impacts (both erosive flows and water quality). Station KCSSWM-035 (Blackjack Middle) was monitored for 7 years between 2011 to 2021 with an average score of 52 and a standard deviation of 12. Scores range from 33 (2014) to 76 (2019). Overall, the stream aquatic October 2022 (4 H E R R E RA City of Port—Orchard—Stormwater Management Action Plan insect community index is classified as "Fair", where some years the score classifies as "Poor" and other years as "Good" (Puget Sound Benthos Database, 2022). The watershed was subdivided into three catchments, A, B and C, and Catchment A was selected for development of the SMAP. This catchment has a greater concentration of older development for retrofit opportunities. Catchment A is depicted in Figure 1. Rj HERRERA October2022 City of Port Orchard—Stormwater Management Action Plan �c R �. i SW BERRY LAKERD" i .r �'►�� .. — � 4 �i i ~ F' I '94 F.. Z � � 1 } LU SE SEDGWICK RD p J o re Cage r' SW'SEDTMGWI h s� O� Legend Figure 1. Lower Blackjack Creek Catchment Port Orchard City Limits A Overview Map. Port Orcha 0 Lower Blackjack Creek Watershed Catchment Boundary Gorst , 0 500 1,000 2,000 FeetFer Waterbody 7 City Roads �.� H E R R E R A Stream _ Kitsap County, 2020 S?? ft \\SEA-FILE-GISOI\g,sk\Prgjec \V2020\2007401000\Ar.Pro\SMAP Plan Maps\SMAP PlanMaps.apr. CATCHMENT CONDITIONS Below is a brief description of the catchment for land use, growth and City stormwater influence. This information provides background about Catchment A existing characteristics and potential future conditions considered during development of the SMAP. Land Use and Future Growth Catchment A is 615 acres. Land use is diverse and comprised of commercial, single-family residential, multi -family residential, high use state highways and City roads. Vacant lands are targeted for development and the watershed within the City limits is developing rapidly. The City of Port Orchard, due to its proximity to the urban centers of Bremerton and Tacoma and connection to Seattle via ferry transportation, is designated as a "high capacity transit community" by the Puget Sound Regional Council (Puget Sound Regional Coordination Council, 2020). The City is expected to grow as much as 36% by 2044 (Kitsap Regional Coordinating Council, 2022). Stormwater Influence The City has four major stormwater outfalls (greater than 24" diameter) within Catchment A, and multiple smaller outfalls. Washington State Department of Transportation also discharges runoff within the catchment. Fourteen public and private stormwater ponds are located within the catchment. Rj HERRERA October2022 City of Port Orchard—Stormwater Management Action Plan STORMWATER MANAGEMENT ACTIONS PROCESS TO IDENTIFY STORMWATER MANAGEMENT ACTIONS The process to identity stormwater management actions included a detailed evaluation of landscape characteristics and the existing stormwater system. Landscape characteristics reviewed included zoning, vacant lands, stream buffers, wetlands, geohazard areas and roadways . In general, actions potentially effective to protect the receiving water of Lower Blackjack Creek were identified. All retrofit projects are one-time actions. However, programmatic and land management strategy actions can be conducted one time, annually during the term, or conducted during a three-year pilot project. Annual and pilot projects are evaluated to determine if it is beneficial to continue the action or to end the action due to completion, or if the action is determined to be ineffective. The assessment of the stormwater system included identifying stormwater ponds (both City and private) and stormwater outfalls. Stormwater pond owners were identified and the year the pond built determined to assess the level of water quality and or flow control according to the design requirements of the era it was designed. For all roadways the owners (City or State) were identified. Current capital improvement projects (CIPs) that improve stormwater quality and/or flow control or floodplain reconnection were identified including the location, drainage area, and best management practice (BMP) type. Existing and future potential partnerships with local agencies were also reviewed. Based on this information a series of 'actions' were identified to further protect and/or enhance ecosystem function of Catchment A. The actions cover three categories: strategic retrofits, land management strategies and stormwater program enhancements. These actions were presented to internal City and local stormwater and natural resource stakeholders prior to conducting two workshops in August 2022. General cost estimates were provided for each action and stakeholders provided their input on selection of Catchment A and prioritization of actions. Stakeholder feedback was incorporated into this plan. STRATEGIC STORMWATER RETROFIT PROJECTS The potential benefits of stormwater retrofit implementation opportunities were examined based on factors including location, degree of existing water quality or flow control, ownership (more challenging to implement for private ownership versus City ownership), and likelihood to succeed. Three retrofit projects were identified in Lower Blackjack Creek Catchment A. The projects are the South Sidney Regional Facility, Flowers Meadows St. Pond Retrofit and Naturalization, and October 2022 %HERRERA City of Port—Orchard—Stormwater Management Action Plan 9 the Sedgewick Water Campus Pond Naturalization. The locations of the three projects and preliminary drainage areas are depicted in Figure 2. The projects and BMP types are described in Table 1. The project summary sheet for the South Sidney Regional Facility project is included in Appendix A. 4 HERRERA October 2022 10 City of Port Orchard—Stormwater Management Action Plan SW B O R 0 Legend Figure 2. Lower Blackjack Creek Catchment Stormwater Retrofits Preliminary Blackjack Creek A Stormwater Projects. Q Catchment Boundary Floodplain Restoration Project Area Preliminary South Sidney Wetlands Regional Facility Drainage Area 0 500 1,000 2,000 Waterbody Feet Stream (Vi HERRERA Kitsap County, 2020 \\SEA-FILE-GISOS\gfsk\Projecis\Y2020\2007401000\Ar.Pr.\SMAP Plan Maps',SMAP Plan Maps.aprx Table 1. City of Port Orchard Lower Blackjack Creek Catchment A Stormwater Retrofit Projects. Best Management Practice(s) to Be Action Considered' Cost South Sidney Regional Facility Constructed wetlands Design: $1,400,000 Biofiltration Construction: $2,100,000 Infiltration ponds Flower Meadows St. Pond Retrofit and Enhance flow control and water quality $45,000 Naturalization Naturalize pond Sedgewick Water Campus Pond Naturalize pond $45,000 Naturalization Total Cost $3,590,000 a These projects are still in early design phase and the specific BMP that will be implemented may change. LAND MANAGEMENT STRATEGIES The potential benefits of land management strategies were examined based on factors including but not limited to the age of existing development, potential future land use, and opportunities to enhance stream function. These were evaluated for opportunities to leverage and mitigate future development to improve watershed health and reduce negative impacts from development. As a result of this evaluation, three land management strategies were identified to help protect or enhance ecosystem functions in Lower Blackjack Creek Catchment A (Table 2). The strategies are the South Blackjack Creek Floodplain Restoration project, a pilot rain garden and low impact development cost share program and regular review of stormwater standards for new development and re -development. The project summary sheet for the South Blackjack Creek Floodplain Restoration project is included as Appendix B. Table 2. City of Port Orchard Lower Blackjack Creek Catchment A Land Management Strategies. Action Description Cost South Blackjack Creek Increase floodplain connectivity creating alluvial Design: $1,000,000 Floodplain Restoration streambeds for off channel habitat with depressional Construction: $5,000,000 water storage, plant coniferous trees and riparian buffer areas, and add large woody debris Rain Garden and Low Implement a pilot private property rain garden or $60,000 Impact Development Cost other low impact retrofit program with cost -share from Share Pilot Program the City Regular Review of Annual meeting of stormwater review staff to identify $5,000 Stormwater Standards process improvements in review, inspection and enforcement of new development projects Total Cost $6,065,000 (6 HERRERA October2022 12 City of Port Orchard—Stormwater Management Action Plan STORMWATER PROGRAM ENHANCEMENTS The City conducts a number of activities for compliance with the 2019-2024 Western Washington Phase II NPDES Stormwater Permit (permit). These include activities associated with Illicit Discharge Detection and Elimination, Source Control , Operations and Maintenance, and Public Education and Outreach. The City's existing procedures for implementing these activities were reviewed to consider what enhancements would be beneficial for accelerating water quality and habitat improvements in the Catchment A. This section describes the enhancements implemented within Catchment A that will exceed NPDES permit required actions. Table 3 summarizes stormwater program enhancement actions. Illicit Discharge Detection and Elimination Field Screening The City is required to inspect 12 percent of stormwater outfalls annually. The City will conduct the following additional actions in Lower Blackjack Creek Catchment A: Locate and map additional outfalls. Visit and inspect stormwater outfalls annually. Source Control Program for Existing Development The City is required to implement an inspection program January 1, 2023. Twenty percent of the inventory list is to be inspected annually with provisions for response to complaints and re - inspection visits. The City will conduct the following additional actions in Lower Blackjack Creek Catchment A: Prioritize businesses for inspections the first year of the Source Control Program. Revisit Source Control Program sites that require additional attention to promote better use of BMPS to reduce pollution sources entering the storm drainage system. Add multi -family properties to the Source Control Business Inspection inventory list. Operations and Maintenance The City is required to clean catch basins every two years, with provisions for reduced cleaning based upon inspection. The City will conduct the following additional actions in Lower Blackjack Creek Catchment A: Clean City catch basins where inspection shows areas which accumulate sediment at higher rates annually. October 2022 H E R R E RA City of Port—Orchard—Stormwater Management Action Plan 13 Public Education and Outreach The City is required to implement public education and outreach programs to build awareness, foster behavior change, and provide stewardship opportunities all related to water resource protection. The City will conduct the following additional actions in Lower Blackjack Creek Catchment A: Identify new locations and add Mutt Mitt pet waste stations to key pet walking areas. Conduct a one-time targeted public education effort to property owners to build awareness about stormwater impacts to surface waters and best management practices, including car washing, pet waste pickup, and other practices to reduce pollution. Develop and distribute education materials to property owners about tree preservation and wetland buffer best management practices. Implement a three year pilot program for education and public participation in a citizen volunteer stream team. Implement a three year pilot program for technical assistance to property owners to improve or establish riparian plantings. Table 3. City of Port Orchard Lower Blackjack Creek Catchment A Stormwater Program Enhancements. Permit Section Action Cost Illicit Discharge Detection Locate and map additional outfalls one time $1,200 and Elimination S.5.C.5 Inspect City stormwater outfalls annually $7,200 Source Control Program Inspect businesses the first year of the program $0 Conduct enhanced technical assistance $7,200 for Existing Development S.5.C.8 Include and inspect multi -family properties $0 Operations and Clean targeted City catch basins annually $25,000 Maintenance S.5.C.7 Public Education and Add Mutt Mitt pet waste pick up stations $4,000 Outreach S.5.C.2 Conduct one time public education to build awareness about $6,000 stormwater impacts to surface waters and best management practices Conduct one time education about tree preservation and $12,000 wetland buffer best management practices Implement a citizen stream team pilot program $60,000 Implement a stream riparian planting pilot program $60,000 Total Cost $182,600 CHANGES TO LONG RANGE PLANS The SMAP will be incorporated into the City 2024 Comprehensive Plan Periodic Update by reference. (`J HERRERA October2022 14 City of Port Orchard—Stormwater Management Action Plan BUDGET AND SCHEDULE Cost estimates for each SMAP action were developed and identified for either short-term (2024- 2030) or long-term(2031-2044) implementation. These costs may be mitigated by grant funding programs; the retrofit projects, the floodplain project and some of the education projects may be grant eligible. For the purpose of this document, no assumptions have been included about grant funds. Some actions are implemented annually while others are a one-time project implemented as a 3-year pilot (see Table 4). The schedule does not assume continuation of programs identified as "short-term" or "pilot" projects beyond the minimum time frame, either 2024-2030 or three year pilot. The total estimated cost for short-term actions is $1,467,600. The total estimated cost for long- term actions is $8,370,000. A summary of short-term and long-term actions costs are shown in Table 4. October 2022 * HERRERA City of Port—Orchard—Stormwater Management Action Plan 15 Table 4. Lower Blackjack Creek Catchment A Stormwater Management Actions Schedule and Cost Summary. Schedule Short- or Action Long -Terms Duration Cost Design South Sidney Regional Facility Short One time $1,400,000 Construct South Sidney Regional Facility Long One time $2,100,000 Design and Construct Flower Meadows St. Pond Retrofit and Naturalization Long One time $45,000 Design and Construct Sedgewick Water Campus Pond Naturalization Long One time $45,000 Design South Blackjack Creek Floodplain Restoration Long One time $1,000,000 Construct South Blackjack Creek Floodplain Restoration Long One time $5,000,000 Conduct private property rain garden & LID retrofit program Long Annual for 3 year pilot $60,000 (over 3 years) Conduct review of stormwater standards Short Annual $5,000 (over 5 years) Locate and map additional outfalls Short One time $1,200 Inspect City outfalls Short One time $7,200 Inspect businesses the first year of the program Short One time $0 Conduct enhanced Business Source Control technical assistance Short Annual $7,200 (over 5 years) Include and inspect multi -family properties in Business Source Control Program Short One time $0 Clean targeted City catch basins Short Annual $25,000 Add Mutt Mitt pet waste pick up stations Short One time $4,000 Conduct private property stormwater impacts & practices outreach Short One time $6,000 Conduct private property tree preservation and wetland buffer Outreach Program Short Annual for 3 year pilot $12,000 Implement a citizen stream team pilot program Long Annual for- 3 year pilot $60,000 Implement a stream riparian planting pilot program Long Annual for 3 year pilot Total Short -Term Costs Total Long -Term Costs $60,000 $1,467,600 $9,837,600 Note=Cost estimates are in 2022 dollars. Inflation and escalation of costs were not incorporated into cost estimates. a Short-term = implementation between 2024 to 2030 Long-term = implementation between 2031 and 2044 LID= low impact development 4 HERRERA October2022 16 City of Port Orchard—Stormwater Management Action Plan FUTURE ASSESSMENT AND FEEDBACK The purpose of the SMAP is to conduct actions in Catchment A to protect or enhance the receiving water of Lower Blackjack Creek. The SMAP is comprised of retrofit projects, land management strategies and enhanced programmatic activities. The City will assess implementation by tracking project implementation, effectiveness and demand for programs, and environmental monitoring data. This tracking will provide feedback to the City about SMAP implementation. Projects are typically reviewed and tracked as part of capital project planning and budgeting. More detailed program analysis, financial assessment and capital project planning occurs on a 6- to 7-year cycle as part of comprehensive planning and provides an additional opportunity for tracking. Projects (those shown in Figure 2) will be tracked for implementation. Design, construction, and potential grant oversight will require City staff time. Staff capacity or lack of grant funding may be limiting factors for implementation. Programs are typically reviewed annually for NPDES permit reporting The City desires to implement programs that are effective, in demand, and worthwhile continuing. Programs will be evaluated to determine if they are not effective (due to lack of response or engagement) or no longer effective (catch basin cleaning, business source control assistance). Successful programs may be continued through the long term depending upon staff capacity and funding. Environmental data collection also occurs annually as part of routine monitoring for stream flow and benthic macroinvertebrates. These data may be useful in assessing trends of stream health over time. B-IBI data will be evaluated for long-term trends and stream flow metrics related to stormwater impacts will be evaluated. October 2022 * H E R R E RA City of Port—Orchard—Stormwater Management Action Plan 17 REFERENCES Ecology. 2019. Stormwater Management Action Planning Guidance. Washington Department of Ecology -Water Quality Program. Publication Number 19-10-010. ESA. 2017. Blackjack Creek Watershed Restoration Assessment and Protection and Restoration Plan. Prepared for Suquamish Tribe and Washington Department of Ecology, by ESA Consultants, Seattle, Washington. Herrera. 2022a. City of Port Orchard Watershed Inventory and Assessment — Technical Memorandum. Prepared for the City of Port Orchard by Herrera Environmental Consultants, Seattle, Washington. March 21.<https://portorchardwa.gov/documents/port-orchard- watershed-inventor)/> Herrera. 2022b. City of Port Orchard Watershed Prioritization — Technical Memorandum. Prepared for the City of Port Orchard by Herrera Environmental Consultants, Seattle, Washington. June 22. <https://portorchardwa.gov/documents/port-orchard-watershed- prioritization/> Kitsap Regional Coordination Council. 2022. Land Use Planning Policy Committee Meeting. February 15. <https://staticl .squarespace.com/static/5660ba88e4bOe83ffe8O32fc/t/6205bOf793b6a l 3O2e7c8f 41/1644540153978/KRCC+PlanPOL+Feb+15+2022+Meeting+Packet.pdf. > Puget Sound Benthos Database. 2022. Accessed August 1, 2022. <https://pugetsoundstreambenthos.ora/> Puget Sound Regional Council. 2020. Vision 2050 A Plan for the Central Puget Sound Region. Puget Sound Regional Council, Seattle, Washington. October 2022 * HERRERA City of Port—Orchard—Stormwater Management Action Plan 19 December 2022 HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan December 2022 I_1„:1 1 DI PAI 01 Financial Analysis HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan ORCHARD City of Port Orchard .A This entire report is made of readily recyclable materials, including the bronze wire binding and the front and back cover, which are made from post -consumer recycled plastic bottles. �__ or tormwater Utility Rate Study DRAFT REPORT December 2022 Washington 7525 166th Avenue NE, Ste. D215 Redmond, WA 98052 425.867.1802 Oregon 5335 Meadows Road, Ste. 330 Lake Oswego, OR 97035 503.841.6543 Colorado 1320 Pearl St, Ste 120 Boulder, CO 80302 719.284.9168 www.fcsgroup.com • ❖> FCS GIDX%r-J-NUP • Solutions -Oriented Consulting FCS GROUP Solutions -Oriented Consulting December 15, 2022 Zack Holt, Public Works Stormwater Manager City of Port Orchard, WA 216 Prospect St. Port Orchard, WA 98366 Subject: Stormwater Utility Rate Study Dear Mr. Holt: Firm Headquarters Established 1988 Redmond Town Center Washington 1425.867.1802 7525166thAve NE, Ste. D-215 Oregon 1503.841.6543 Redmond, Washington 98052 Colorado 1719.284.9168 FCS GROUP is pleased to submit this report summarizing the results of the Stormwater Utility Rate Study. We want to thank you and City staff for your assistance and participation in data collection, analysis review, and discussion of key policy topics. This report includes consideration of three stormwater levels of service, each with varying levels of staffing and capital project considerations. The detailed methodologies used to derive the revenue needs for all levels of service (and a capital facility charge for each) are included in this report. It has been a pleasure to work with you and City staff on this study. Please let us know if you have any questions. Tage can be reached at (425) 615- 6487 or TageA&fcsgs . r,_oup.com. Sincerely, �- -f John Ghilarducci Tage Aaker Luke Rosson Project Principal Project Manager Analyst City of Port Orchard Stormwater Utility Rate Study December 2022 page i TABLE OF CONTENTS Tableof Contents.................................................................................................................................................... i Section I. Introduction/Summary.......................................................................................................................1 UtilityBackground......................................................................................................................................................... 1 RateStudy.............................................................................................................................................................1 UtilityRate and Inflation..........................................................................................................................................2 Revenue Requirement Results by Level of Service... .................................................................................................... 2 Capital Facility Charge by Level of Service................................................................................................................... 3 SectionII. Fiscal Policies...................................................................................................................................4 OperatingReserve — Fund 421...............................................................................................................................4 CapitalReserve — Fund 423.......................................................................................................................................... 4 AdoptedCity Fiscal Policies..........................................................................................................................................5 StabilizationReserve — Fund 422.................................................................................................................................. 5 DebtManagement.........................................................................................................................................................5 Rate Funded System Reinvestment (Rate Funded Capital).......................................................................................... 7 Summaryof Fiscal Policies.....................................................................................................................................7 SectionIII. Revenue Requirement.................................................................................................................. 8 Economic& Inflation Factors......................................................................................................................................... 8 FundBalances.......................................................................................................................................................8 Staffing & Other Operational Funding Needs...........................................................................................................9 CapitalExpenditures................................................................................................................................................... 10 CapitalFunding Strategy.......................................................................................................................................11 Revenue Requirement for Level of Service 1..................................................................................................................12 Revenue Requirement for Level of Service 2..................................................................................................................13 Revenue Requirement for Level of Service 3..................................................................................................................14 Section IV. Capital Facility Charges..............................................................................................................15 Introduction..........................................................................................................................................................15 LegalBasis.................................................................................................................................................................. 15 Methodology.........................................................................................................................................................15 ExistingCost Basis...............................................................................................................................................16 FutureCost Basis........................................................................................................................................................ 17 Estimated Customer Base (System Capacity)............................................................................................................. 18 City of Port Orchard December 2022 •:,) HCS GROUP Stormwater Utility Rate Study page ii www.fcsgroup.com CFCResults................................................................................................................................................................ 19 SectionV. Summary.........................................................................................................................................20 Capital Facility Charge ................................ Single -Family Residential Rate Comparison Single -Family Stormwater CFC Comparison Updating This Study's Findings .................. Model Appendices 20 20 22 22 23 ••; FC5 GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 1 Section I. INTRODUCTION/SUMMARY Utility Background According to the City's Stormwater and Watersheds Comprehensive Plan 2023 (Comprehensive Plan) by Herrera Environmental Consultants, "the City of Port Orchard (City) operates a system of drainage pipes and ditches to convey stormwater runoff to receiving waters including streams and the Sinclair Inlet. The drainage system prevents and minimizes damage to private properties, city streets, and other infrastructure... The City is faced with the challenge to convey runoff safely, while minimizing adverse high -flow impacts (erosion, flooding, and sediment deposition) and water quality degradation to receiving waters." The City bills and collects fees from customers within its service area to provide resources needed to plan, manage, design, construct, maintain, revise, and upgrade its stormwater system. Rate Study The rate study has two main goals — to develop revenue requirement analyses and capital facility charges for the City's stormwater utility. The results corresponding to each level of service vary because each level of service incorporates different operational and capital project needs. Revenue Requirement One main purpose of this rate study is to develop a funding plan ("revenue requirement") for the City's Stormwater utility for the 2022-2041 study period. The revenue requirement identifies the total amount of rate revenue needed to fully fund the utility on a standalone basis, considering operating and maintenance expenditures, existing debt service, capital funding needs identified in the City's capital plan, and fiscal policies. Exhibit I shows the general methodology of the rate study process. Exhibit 1 Capital Facility Charge (CFC) Revenue Requirement Overview Financial Policies REVENUE REQUIREMENT CFC The other purpose of this rate study is to develop a capital facility charge, or CFC, for the City's stormwater utility. The City currently has water and sewer utility CFCs, but none for its stormwater utility. CFCs are designed to recover from new development a proportionate share of the cost of capital facilities. CFCs are one-time charges, not ongoing rates. They are typically payable at the time of development (or redevelopment to a higher intensity of development). Capital facility charges serve two primary purposes: to provide equity between existing and new customers; and to provide a source of capital funding for system capital costs, as growth occurs. 4+%� F C S GROUP www.fcsgroup.com City of Port Orchard December 2022 Utility Rate and Inflation Stormwater Utility Rate Study page 2 In June 2015, the City increased its monthly stormwater utility fee from $9.70 to $14.00 per impervious surface unit (ISU). It has not increased since that time. Exhibit 2 compares that fee against what that fee would have been if annual inflationary adjustments had been applied. The fee would need to be roughly $18 in 2022 to have a similar amount of buying power as it did in 2015. Since 2015, the utility has faced significant cost inflation and development. While new development does result in new customers who pay the monthly rate, new development may also require additional services and can result in additional costs for the utility to build and maintain the infrastructure that serves the new development. Additionally, the City has gone through another iteration of the National Pollutant Discharge Elimination System (NPDES) Municipal stormwater permit (2019) which has resulted in increased regulatory requirements for the City's stormwater program. Exhibit 2: City's Monthly Stormwater Fee vs. Consumer Price Index (CPI) Inflation $20 $17.90 $15—$14.00 $10 $5 $0 2015 2016 2017 2018 2019 2020 2021 2022 � City's Fee — — CPI Inflation Applied to 2015 Fee Revenue Requirement Results by Level of Service The following sections summarize revenue requirement results by level of service (LOS). In each LOS, there is a three-year phase -in to help rates "catch up" to the level of service needs. After that, inflationary -level adjustments are assumed — 3% per year for each level of service. In LOS 3, increases drop to 1.5% in 2033 to avoid a large buildup of reserves. As previously noted, the forecast goes through the end of 2041, but the tables below show results through 2031 due to space limitations. To give City staff and City Council time to consider each level of service, and the associated rate adjustments, it is assumed initial rate adjustments would not be made until 2024. If the City were to incorporate rate increases earlier, say effective July 1, 2023, it would reduce future rate increases by roughly $1-2 per month per ISU. Level of Service 1 Level of Service 1 requires monthly rate increases averaging $3.60 per year for 2024-26. This level of service funds approximately $36 million in capital projects (net of grants) inflated to the year of construction (2022-2041) and provides funding for up to 1.7 additional FTEs. Monthly Rate / ISU Change in Monthly Rate Exhibit 3: Level of Service 1: Rate Adjustments mmmm=m $14.00 $16.94 $20.50 $24.80 $25.55 $26.31 2031 .� $27.10 $27.91 $28.75 $2.94 $3.56 $4.30 $0. _LA �� F C S GROUP www.fcsgroup.com City of Port Orchard December 2022 Level of Service 2 Stormwater Utility Rate Study page 3 Level of Service 2 requires monthly rate increases averaging $5.82 per year for 2024-26. This level of service funds approximately $48 million in capital projects (net of grants) inflated to the year of construction (2022-2041) and provides funding for up to 4.7 additional FTEs. Exhibit 4: Level of Service 2: Rate Adjustments 2026 2030 2031 Monthly Rate I ISU $14.00 $18.34 $24.03 $31.47 $32.42 $33.39 $34.39 $35.42 $36.49 Change in $4.34 $5.69 $7.44 $0.95 $0.97 $1.00 $1.03 $1.07 Monthly Rate �� +ii`�` Level of Service 3 Level of Service 3 requires monthly rate increases averaging $9.71 per year for 2024-26. This level of service funds approximately $58 million in capital projects (net of grants) inflated to the year of construction (2022-2041) and provides funding for up to 5.5 additional FTEs. Exhibit 5: Level of Service 3: Rate Adjustments 2026 1 2027 2030 2031 Monthly Rate I ISU $14.00 $20.37 $29.64 $43.12 $44.42 $45.75 $47.12 $48.54 $49.99 Change in I Monthly Rate .� $6. $9.27 $13.48 $1.30' $� 1.33 _ $1.37 $1.42 $1.45 Capital Facility Charge by Level of Service The calculated stormwater capital facility charge varies by level of service. Each level of service assumes a different amount of grants which are subtracted from the recoverable cost basis. The CFCs by level of service, per impervious surface unit (ISU), are shown below. Per the City's municipal code, one ISU is defined as one single-family residential account (including a mobile home) or 3,000 impervious square feet of ground cover for all other developed parcels. • LOS 1: $2,469 per impervious surface unit • LOS 2: $3,087 per impervious surface unit • LOS 3: $3,914 per impervious surface unit These charges reflect the maximum defensible CFC that the City Council could adopt, by level of service. The Council could adopt, by policy, a CFC that is lower than the indicated amounts. Lastly, the City should align its revenue requirement and CFC choices. For example, if the City Council adopts a rate plan supporting the revenue requirement for level of service 1, it should not adopt a CFC that aligns with level of service 2 or 3. �� F C S GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 4 Section II. FiscaL PoLiciEs The basic framework for evaluating utility revenue needs includes sound fiscal policies. Several policy topics are important to consider further as part of managing the finances of the City, including operating reserves, capital reserves, debt management, and rate funded capital. The City makes use of four different funds / reserves: operating, stabilization, capital, and debt service. When evaluating reserve levels and objectives, it is important to recognize that the value of reserves lies in their potential use. A reserve strategy that deliberately avoids any use of reserves negates their purpose. The fluctuation of reserve levels may indicate that the system is working, while the lack of variation over many years strongly suggests that the reserves are, in fact, unnecessary. Operating Reserve — Fund 421 An operating reserve is designed to provide a liquidity cushion; it protects the utility from the risk of short-term variation in the timing of revenue collection or payment of expenses. Industry practice for utility operating reserves typically ranges from 30 days (8%) to 120 days (33%) of operating expenses, with the lower end more appropriate for utilities with stable revenue streams and the higher end of the range more appropriate for utilities with significant seasonal or consumption -based fluctuations. M Recommended Policy: Achieve a year-end balance target of 90 days (25%) of total annual operating expenditures. This equates to $397,000 for the 2022 budget, $486,000 for the 2023 budget, and $483,000 for the 2024 budget. Capital Reserve — Fund 423 This reserve provides a source of emergency funding for unexpected asset failures or other unanticipated capital needs. This capital reserve policy is not intended to guard against catastrophic system failure or extreme acts of nature. Minimum balances for capital reserves are often based on a percentage (commonly 1% to 2%) of the original cost of utility fixed assets or an amount determined sufficient to fund an emergency capital project or equipment failure. Capital reserves larger than these amounts may be prudent if the City is saving for future capital projects that cannot be funded with same -year rate revenues. Recommended Policy: Achieve a year-end target of at least 1 % of the original cost of fixed assets. In 2022, the City had over $16 million in stormwater assets plus construction in progress, which results in a $160,000 capital reserve target. Capital reserves larger than this may be prudent if the City is saving in advance for future capital projects. This target is projected to grow over time as the City executes its capital improvement program. +:www.fcsgroup.com FC5 GROUP City of Port Orchard December 2022 Adopted City Fiscal Policies Stormwater Utility Rate Study page 5 Per Resolution No. 053-20, the City's stormwater operating reserve (Fund 421) balance must be sufficient to meet roughly two months of recurring revenue, with a goal to work towards a maximum of three months of revenues. The City does not have an adopted policy regarding its capital reserve (Fund 423). Calculating a reserve based on revenue in the rate forecast model can create a circular type of argument, so it was not modeled that way. As previously noted, operating reserves are typically based on a certain number of days of operating expenditures. The American Water Works Association (AWWA) published a 2018 Cash Reserve Policy Guidelines, and it cites recommended reserve levels from the Water Environment Federation, International City/County Management Association, and the Government Finance Officers Association, all of which reference a certain number of days of operating expenses. Capital reserves are typically based on a percentage of fixed assets or an amount sufficient to respond to an emergency capital project. To make sure the rate plan in each level of service met the City's adopted policy, we tested the combined operating reserve (90 days of operating expenses) plus the capital reserve (1% of fixed assets) to ensure that it was equal to or greater than two months of revenues. Stabilization Reserve — Fund 422 The City maintains stabilization reserves for each of its water, sewer, and stormwater utilities. Per the City's adopted fiscal policies, this reserve "shall be used if all efforts have been exhausted to fund a qualifying event and no reasonable budget adjustments are available to continue to provide essential services to the public." The policy notes qualifying events as follows: • The State of Washington or the Federal government formally declares a disaster or emergency. • A natural or urgent event that jeopardizes public safety, impedes commerce, or threatens additional damage to City infrastructure. • Unforeseen events or situations outside of the scope of contingency planning or planned normal course of government operations. • An act of war, terrorism, or declaration of Martial law. Recommended Policy: Per Resolution No. 053-20, the stabilization reserve should target having 90 days (25%) of annual expenditures. Per discussions with City staff, this reserve is fully funded through the end of 2024. The forecast did not assume these funds were available for use, nor did the forecast add any funds to this reserve throughout the study period. Debt Management The City currently has two outstanding stormwater utility -related loans. For the management of current as well as potential fixture debt, some considerations are provided below. Types of Debt Considered as Part of this Forecast For utilities, there are two primary sources of debt financing: State or federal loan programs, and market debt financing. +:www.fcsgroup.com FC5 GROUP City of Port Orchard December 2022 State -Administered Loan Programs Stormwater Utility Rate Study page 6 State -administered loans (including federal loans administered by the State) are generally preferable to market debt financing. The interest rate is generally lower for State loans, and the loan terms often offer more flexibility in administering the debt. For instance, most State loan programs do not include a requirement that the utility maintain a certain minimum level of debt service coverage. Market Debt Financing General Obligation Bonds General Obligation (G.O.) bonds are voter -approved bonds secured by the full faith and credit of the issuing agency, committing all available tax and revenue resources to debt repayment. With this high level of commitment, G.O. bonds have relatively low interest rates. General Obligation taxing authority can be sought as a backup pledge to reduce the interest rate of utility debt, even if the actual source of repayment is intended to be utility rates. However, the use of G.O. bond financing is limited in relation to assessed valuation, and G.O. bonds must be authorized by 60% of the voters. For these reasons, G.O. bonds are not often used for utility capital projects. Limited Tax General Obligation (LTGO) bonds can also be issued up to a statutory ceiling without a vote of the people. In Washington, they are sometimes referred to as "councilmanic" bonds. Unlike G.O. bonds, LTGO debt does not authorize additional property taxes; instead, it must be repaid within the City's existing taxing authority. Usually there are competing demands for that funding within a City, and for that reason, LTGO debt is not often used for utility capital projects either. Revenue Bonds Revenue bonds are secured by the revenues of the issuing utility; the debt obligation does not extend to the City's other revenue sources. With this limited commitment, revenue bonds usually bear higher interest rates than G.O. bonds. Revenue bonds typically require the achievement of minimum debt service coverage each year. Revenue bonds can be issued in Washington without a public vote. There is no limit, except the practical limit of the utility's ability to generate revenue to repay the debt and meet debt service coverage each year. Forecast Assumption: The forecast assumes that the City will issue revenue bonds when debt is needed. While low-cost state loans are typically preferred, revenue bonds are conservatively assumed as they require the forecast to cover higher interest rates and debt service coverage requirements. If the City secures low-cost state loans, that will be a positive result that will not negatively impact the forecast, while the inverse could have a negative impact on the forecast (relying on state loans but ultimately needing to rely on revenue bonds instead which have higher interest and debt service coverage requirements). Debt Service / Reserve — Fund 424 A debt reserve is most often required as a condition of bond issuance, though some state loan programs also require a reserve. The reserve intends to protect bondholders (or the agency issuing loans) from the risk of the borrower defaulting on their payments and is most often linked to either average annual debt service or maximum annual debt service. Recommended Policy: The policy should be dictated by terms outlined in contracts for debt obligations. �� F C S GROUP www.fcsgroup.com City of Port Orchard December 2022 Debt Service Coverage Stormwater Utility Rate Study page 7 Debt service coverage is typically a requirement associated with revenue bonds and some state loans, and it is an important benchmark to measure the riskiness of the water utility's capital funding plans. Coverage is most easily understood as a factor applied to annual debt service. In such a case, if it issues revenue bonds, the utility agrees to collect enough revenue to meet operating expenses and not only pay debt service but to collect an additional factor (often 25%) above bonded debt service. The extra revenue is a "cushion" that makes bondholders more confident that debt service will be paid on time. F Recommended Policy: While a factor of 1.25 is a common legal minimum coverage requirement for revenue bonds, we recommend a more conservative internal policy coverage target of at least 1.50 to 2.00 for revenue bond debt. We are not currently aware of any debt service coverage requirements related to the City's existing stormwater-related loans. Rate Funded System Reinvestment (Rate Funded Capital) Rate funded system reinvestment is the funding of long-term infrastructure replacement needs through a regular (annual) and predictable rate provision. Most commonly, utilities that have addressed replacement funding needs have used historical (original cost) depreciation expense as the basis for a reasonable level of reinvestment in the system. In other cases, utilities strive to rate fund routine repair and replacement projects, saving debt for larger and / or more one-time type projects. Recommended Policy: Set rates to fund a majority of routine repair and replacement projects with cash, such as the City's Ongoing Conveyance System Improvement Program. This annual program is expected to cost approximately $1,000,000 per year in 2022 dollars. Summary of Fiscal Policies Exhibit 6 provides a summary of the recommended fiscal policies for the City. Exhibit 6: Summary of Fiscal Policies Operating Reserve Achieve a year-end minimum balance target of 90 days (25%) of total annual operating expenditures. This target increases as the City's operating costs increase. Capital Reserve Achieve a year-end target of at least 1 % of the original cost of fixed assets. Operating plus Capital Compare the combined operating plus capital targets against the City's adopted policy of two to three months of recurring revenues. Rate Funded Capital Strive to rate fund a majority of the City's ongoing Conveyance System Improvement Program, which is estimated to be roughly $1,000,000 per year, plus inflation. Debt Service Coverage While a factor of 1.25 is a common legal minimum coverage for revenue bonds, achieve an internal policy coverage target of at least 1.50 to 2.00 when possible. �� F C S GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 8 Section III. REVENUE REQUIREMENT As previously mentioned, the main purpose of the revenue requirement analysis is to develop a funding plan ("revenue requirement") for the 2022-2041 study period. For each level of service, the revenue requirement identifies the total rate revenue needed to fully fund the utility on a standalone basis considering current financial obligations including operating expenditures, existing debt service, policy -driven commitments, and future capital project needs. Rate increases are applied "across-the-board" — that is, it is assumed that each charge on the rate schedule increases by the same percentage, which maintains the existing rate structure. Economic & Inflation Factors The operating and maintenance expenditure forecast largely relies on the City's 2022-2024 budgets. The line items in the budget are then adjusted each year by utilizing one of the following applicable factors: • General Cost Inflation. Assumed to be 3.0 percent per year based on both the Washington State Economic & Revenue Forecast Council projection for the Consumer Price Index and the recent historical performance of the Seattle -Tacoma -Bellevue Consumer Price Index. • Construction Cost Inflation. Assumed to be 3.5 percent per year based on the Engineering News- Record's Construction Cost Index (20-City Average). • Taxes. State Business and Occupation tax rate of 1.75 percent (taxable revenue goes above the $1.0 million threshold) and the City utility tax rate of 5.00 percent. • Personnel Cost Inflation. Based on Employment Cost Indices (U.S. Bureau of Labor Statistics), experience with other stormwater utilities, and discussions with City staff. » Labor inflation: assumed to be 3.0 percent per year. » Benefits inflation: assumed to be 5.0 percent per year. • Cost per Additional Full -Time Equivalent (FTE). Each level of service incorporates additional staff. Based on discussions with City staff, we assumed a "fully loaded" cost of $125,000 per FTE (2022 $), which is assumed to include both wages and benefits. • Fund Earnings. Assumed to be 2.25% percent per year based on recent earnings reports from the State's Local Government Investment Pool (LGIP) at the time of the analysis. • Customer Account Growth. City staff provided a detailed growth forecast for the 2023-2025 period, based on projects currently identified in the City's permitting pipeline. Based on that forecast, City staff estimated that 300 impervious surface units would be added each year through 2025, and that 150 units per year would be added after that. This equates to annual growth rates of approximately 2.75% per year through 2025 and 1.25% for each year thereafter. Fund Balances The 2022 starting cash balances associated with the stormwater utility funds are shown below in Exhibit 7 and total $2.5 million. �� F C S GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 9 Exhibit 7: 2022 Beginning Fund Balances Operating Reserve - 421 $2,116,000 Rate Stabilization Reserve - 422 343,000 Capital Reserve - 423 94,000 Debt Reserve - 424 Total $2,553,000 Staffing & Other Operational Funding Needs According to the City's 2023 Comprehensive Plan, "City staff can address surface water and stormwater problems that arise on a daily basis and troubleshoot specific issues that arise with development project reviews. However, they are not fully able to perform activities that would enable continual improvement of the City's surface water management program. Current staffing levels will not be adequate to meet the rest of the requirements of the 2019-2024 Phase II Permit and long-term goals defined as part of this Plan." The resulting staffing requirements and other funding needs (e.g., consultant support) are shown by level of service in Exhibits 8 and 9. Additional Staffing Requirements Herrera Environmental Consultants (Herrera) worked with City staff to identify the following staffing requirements (above those that are included in the 2023-24 budget). By 2029, LOS 1 would require 1.7 additional full-time equivalents (FTEs), LOS 2 would require 4.7 additional FTEs, and LOS 3 would require 5.5 additional FTEs. Exhibit 8: Total Additional Staffing Needs by Level of Service M. 5 w4 U_ _3 0 Q 2 1 1 0 2024 2025 2026 2027 2028 2029 ■ LOS 1 ■ LOS 2 ■ LOS 3 FCSGRO V www.fcsgroup.com City of Port Orchard December 2022 Other Operational Funding Needs Stormwater Utility Rate Study page 10 Herrera worked with City staff to identify other funding needs, primarily in the form of consultant support to assist City staff in certain programmatic areas. These costs, shown in Exhibit 9, are in addition to the City's adopted 2023-24 budget and are summarized below: • LOS 1: Stormwater planning, climate change in capital projects support. • LOS 2: LOS 1, plus public education & outreach for low impact development practices. • LOS 3: LOS 2, plus climate change in private development projects support. The $100,000 bump in 2028 is related to developing policy and standards for new and redevelopment projects to design for more intense future precipitation. Exhibit 9: Other Operational Funding Needs by Level of Service (2022 $) $120,000 U) $100,000 z P $80,000 M Q $60,000 - 0 $40,000 0 16 $20,000 a $_ ■ ■ 10 ■■■ ■■ ■■■ 2024 2025 2026 2027 2028 2029 ■ LOS 1 LOS 2 ■ LOS 3 Capital Expenditures Herrera worked with City staff to develop three levels of service for the stormwater capital program, each with varied timelines and grant assumptions, shown in Exhibit 10. Exhibit 10 Level of Service 1 Level of Service 2 Level of Service 3 Capital Program Assumptions by Level of Service Implementation of all projects within 20 years Implementation of all projects within 20 years Implementation of all projects within 6 years Maximum grant funding (many projects would not proceed without grants) Moderate grant funding (some projects would not proceed without grants) No grant funding assumed Given these assumptions, Exhibit 11 shows the assumed level of annual capital expenditures, after the assumed grants have been deducted. �� F C 5 GROUP www.fcsgroup.com City of Port Orchard December 2022 Exhibit 11 $10,000,000 $9,000,000 $8,000,000 $7,000,000 $6,000,000 $5,000,000 $4,000,000 $3,000,000 $2,000,000 $1,000,000 Stormwater Utility Rate Study page 11 Annual Capital Costs by Level of Service (Net of Assumed Grants) in 2022 $ JJ d J MAMA MEMMEM is man O�`L O`L�' O`L� Oyh O�fo O`L1 OHO OHO OHO O�� O`�'L O�rS O�� oOh 000 001 O�� oOg o�0 0�� ■ LOS 1 ■ LOS 2 ■ LOS 3 Summary notes related to the capital plan are provided below for the three levels of service: • Level of Service 1: The 2022-2041 CIP totals $25 million ($1.2 million per year) in 2022 dollars and $36 million with forecasted inflation ($1.8 million per year). • Level of Service 2: The 2022-2041 CIP totals $34 million ($1.7 million per year) in 2022 dollars and $48 million with forecasted inflation ($2.4 million per year). • Level of Service 3: The 2022-2041 CIP totals $45 million ($2.3 million per year) in 2022 dollars and $58 million with forecasted inflation ($2.9 million per year). Capital Funding Strategy The 2022-2041 capital plan varies in funding sources as well as total capital. The latter is due to changes in capital timing and associated inflation. A few observations are shown below: • Rate funded capital ranges from $17.4 to $23.4 million in each level of service. • Borrowing increases from $15 million in LOS 1 to $34 million in LOS 3. • Assumed grants and other sources decrease from $28.6 million in LOS 1 to just $0.5 million in LOS 3; it is assumed that the general fund contributes $0.5 million in each level of service for a multi -purpose land acquisition budgeted for 2023. • Total capital in LOS 3 is much less than LOS 1 or LOS 2 because most projects are assumed to be completed in the next six years, which reduces the impact of inflation compared to a twenty- year completion schedule. Exhibit 12: Capital Funding Strategy by Level of Service Drawdown of Existing Reserves Rate Funded Capital Debt (Borrowing) Grants & General Fund Total $640,000 $19,900,000 $15,300,000 $530,000 $17,240,000 $29,700,000 $28,550,000 T $19,480,000 $64,390,000 $66,950,000 $23,350,000 I $33,800,000 $500,000 $57,650,000 ••; FCS GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 12 Revenue Requirement for Level of Service 1 Exhibit 13 graphically represents the LOS 1 revenue requirement forecast through 2041. The stacked columns represent the costs and obligations of the utility such as operating expenses and annual rate spending for capital projects, while the lines represent utility revenues. • Solid black line: Revenue at existing rates. » Stormwater rate revenue is expected to be roughly $1.8 million in 2022 and is expected to grow at a varying rate ranging from 1.2%-2.5% per year with customer growth. • Dashed black line: Revenues with rate increases. » Rate revenue must increase to allow the utility to cover its financial obligations. • 1 , • o . 2022-24 budgets plus inflation. » Operating expenses are based on the adopted 2022-2024 budgets and increase with the annual cost escalation assumptions previously discussed. • - Additional FTEs and operating costs associated with each LOS. » Level of Service 1 incorporates funding for 1.7 FTEs and the other operational needs identified in Exhibit 9. • - Existing debt service. » The stormwater utility has two loans with annual debt service totaling $177,000 per year. • Gold 0 Net debt service. » Annual principal and interest resulting from this borrowing are expected to be $1.2 million per year by 2041. • I� , Rate Funded Capital (i.e., cash available for capital). » Rates cannot support annual rate funded capital until the first scheduled increase in 2024. With rate increases, this amount is projected to increase to $1.4 million by 2041. Exhibit 13: Level of Service 1: Annual Revenue Requirement Forecast 2022-2041 $12,000,000 Data label legend: Increase 1 .1 $10,000,000 Monthly Rate perlSU $8,000,000 3% 3% 3 % $38.64 3% 3% $3% $36.42 $17.5 $1.13 3% 3% 3% $3% $34.33 $1.06 $6,000,000 3% 3% 3% $2% $30.50 $31.42 $2.3 $3.3 $1.00 $1.03 21% 3% 3% $27.91 $28.75 $0.89 $0.92 0.94 $25.55 $26.31 $27.10 $0.81 $0.84 $0.86 21 % $24.80 $0.74 $0.77 $0.79 $4 000 000 21 % $20.50 $4.30 $16.94 $3.56 $14.00 $14.00 $2 94 00 $2,000,000 ti ti ti ti � ti ti ti ti ti ti ti ti ti ti ti ti ti � ti 0&M Expense New Debt Service _ Revenue with Increases � LOS Additional Operating Existing Debt Service � Rate Funded Capital Revenue @ 2022 Rates ••; FC5 GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 13 Revenue Requirement for Level of Service 2 Exhibit 14 graphically represents the LOS 2 revenue requirement forecast through 2041. • Solid black line: Revenue at existing rates. » Stormwater rate revenue is expected to be roughly $1.8 million in 2022 and is expected to grow at a varying rate ranging from 1.2%-2.5% per year with customer growth. • Dashed black line: Revenues with rate increases. » Rate revenue must increase to allow the utility to cover its existing financial obligations while also funding capital improvement projects. These rate increases start in 2024. • Ill . .. 2022-24 Budgets plus Inflation » Operating expenses are based on the adopted 2022-2024 budgets and increase with the annual cost escalation assumptions previously discussed. • Green bar Additional FTEs and Operating Costs from LOS. » Level of Service 2 incorporates funding for 4.7 FTEs and the other operational needs identified in Exhibit 9. • - Existing debt service. » The stormwater utility has two loans with annual debt service totaling $177,000 per year. • � Net debt service. » Annual principal and interest resulting from this borrowing are expected to be $2.4 million per year by 2041. • Rate Funded Capital (i.e., cash available for capital). » Rates cannot support meaningful annual rate funded capital until 2025. With rate increases, this amount is projected to increase to $1.2 million by 2041. Exhibit 14: $12,000,000 $10,000,000 $8,000,000 $6,000,000 $4,000,000 $2,000,000 Level of Service 2: Annual Revenue Requirement Forecast 2022-2041 Data label legend: % Increase Monthly Rate per ISU 3% 3% $49.03 ° $47.61 3% 3% 3%gg44.87 3/0�46.22$1.39 $1.43 41.07 3% $42.30$43.57$1.31$13 o$39.87 $ 0 $1.23 $1.27 0 3% 3 /o 3% 3/0 $37.58 $38.71 $1.16 $1.20 3% 3% 3 /o $35.42 $36.49 $1.09 $1.13 31.4 $32.42 $33.39 1 $ $1.0 00 $31.47 $0.94 $0.9� ' $7.45 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 � 0&M Expense � LOS Additional Operating � Existing Debt Service � Rate Funded Capital Revenue @ 2022 Rates - - Revenue with Increases � New Debt Service ••; FC5 GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 14 Revenue Requirement for Level of Service 3 Exhibit 15 graphically represents the LOS 3 revenue requirement forecast through 2041. • Solid black line: Revenue at existing rates. » Stormwater rate revenue is expected to be roughly $1.8 million in 2022 and is expected to grow at a varying rate ranging from 1.2%-2.5% per year with customer growth. • Dashed black line: Revenues with rate increases. » Rate revenue must increase to allow the utility to cover its existing financial obligations while also funding capital improvement projects. These rate increases start in 2024. • Iill. .. 2022-24 Budgets plus Inflation » Operating expenses are based on the adopted 2022-2024 budgets and increase with the annual cost escalation assumptions previously discussed. • Green bar Additional FTEs and Operating Costs from LOS. » Level of Service 3 incorporates funding for 5.5 FTEs and the other operational needs identified in Exhibit 9. • - Existing debt service. » The stormwater utility has two loans with annual debt service totaling $177,000 per year. • � Net debt service. » Annual principal and interest resulting from this borrowing are expected to be $2.7 million per year by 2041. • Rate Funded Capital (i.e., cash available for capital). » Rates cannot support meaningful annual rate funded capital until 2025. With rate increases, this amount is projected to increase to $2.2 million by 2041. Exhibit 15: Level of Service 3: Annual Revenue Requirement Forecast 2022-2041 $12,000,000 Data label legend: average2024-26 monthly 0 1.5% % Increase . 1.5% 1.5%$5 15 1.5 ° $58 01° $58.88 $10,000,000 Monthly Rate perlSU o 1.5% $56.30 0.86 $0.87 1.5 /o g$55.47 $0.8 3.0% 1.5% 1.5% $53.84 $540.82 $0.83 0 2�$53.05 $0.80 $0.81 0 3.0°/ 3.0% $49 0gggg/0$51.49 $0.77 fi.78 3.0 /° �548.54 %1.50 $8,000,000 3.0%$45.75$143711.41 $1.46 $43.1$1.29 $1.33 $43.12 $1.29 $13.49 $6,000,000 45.5% . $29.64 $9.27 45.5% $4,000,000 $20.37 $6.37 $2,000,000 $14.00 $14.00 :4 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 � 0&M Expense LOS Additional Operating Existing Debt Service � New Debt Service � Rate Funded Capital Revenue @ 2022 Rates Revenue with Increases �� F C 5 GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 15 Section IV. CAPITAL FACILITY CHARGES Introduction Capital Facility Charges (CFCs) are one-time fees, paid at the time of development, intended to recover a share of the cost of system capacity needed to serve growth. As part of the rate study, the City tasked FCS GROUP with calculating a CFC for the City's stormwater utility. As noted previously, some of the capital cost elements vary based on the level of service which results in a unique CFC for each level of service. CFCs serve two primary purposes: • to provide equity between existing and new customers; and • to provide a source of funding for system capital costs, as growth occurs. The CFC is an upfront charge imposed on growth and is primarily a charge on new development, although also applicable to expansion or densification of development when such actions increase requirements for utility system capacity. Charges imposed on redevelopment should be net of any existing developed area on the site. The City of Port Orchard has water and sewer CFCs but does not currently have a stormwater CFC. This report documents the methodology and resulting CFC for the City's consideration. Legal Basis There are a variety of approaches that are used in the industry to establish a defensible capital facility charge. The City is authorized to assess such charges under Section 35.92.025 of the Revised Code of Washington (RCW). It is important that the City's methodology to determine cost -based CFCs is consistent with RCW 35.92.025 and applicable case law. Additionally, under RCW 35.67.010, "system of sewerage" is defined to include stormwater facilities. RCW 35.92.025: "Cities and towns are authorized to charge property owners seeking to connect to the water or sewerage system of the city or town as a condition to granting the right to so connect, in addition to the cost of such connection, such reasonable connection charge as the legislative body of the city or town shall determine proper in order that such property owners shall bear their equitable share of the cost of such system." RCW 35.92.025 is silent regarding specific methodology to be used in the charge calculation. However, language contained in the Special District RCW 57.08.005 (11) does provide some guidance regarding specific methodology. While this guidance does not legally apply to municipal stormwater utilities, there are elements that help inform the methodology used for stormwater CFCs. Since the calculated charges represent the maximum allowable charge, the City may choose to implement a charge at any level up to the calculated charge. Methodology Exhibit 16 shows the recommended approach for the CFC calculation. Under this methodology, all capital costs (existing assets and future projects net of provisions for retirement) are divided by the estimated future customer base. This calculation is like a simple buy -in charge (which consists of �� F C S GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 16 existing costs divided by existing customers), except that it is projected into a future year after the planned capital projects are completed and after incorporating estimated customer growth. The resulting CFC is generally stable over time. The main policy emphasis here is on intergenerational equity — there is no cost advantage for either existing or new customers. Exhibit 16: CFC Calculation Methodology Capital Facility Charge Existing Future Cost Basis Cost Basis Applicable System Capacity (Customer Base) The capital costs used in the CFC calculation can be separated into two major categories: • Existing system costs: These costs represent the net investment in assets that currently provide service to customers (and that presumably have some amount of capacity to serve growth). • Future capital costs: These costs refer to capital improvement projects that the utility plans to undertake within a period of time specified in the system planning documents. A provision for capital retirement — a calculation to account for the original value of the assets any new capital projects are repairing or replacing — is deducted from the total future capital projects. The existing estimated system capacity is measured in impervious service units (ISUs). Existing Cost Basis The existing cost portion of the calculation is intended to recognize the current ratepayers' net investment in the original cost of system assets. The main provisions of the calculation include the following elements: • Utility Plant -In -Service: The existing cost basis is comprised of the original cost of plant -in- service, as documented in the fixed asset schedule of the stormwater utility. » The City's records as of the end of 2021 identify $13.3 million in stormwater-related assets. • Plus: Construction -Work -in -Progress: Projects that the City is currently constructing are eligible to be included in the cost basis, similar to an existing asset. » As of the end of 2021, the City had $3.0 million in construction -work -in -progress. • Less: Contributed Capital: Assets funded by developers, grants, or from any agency other than the City of Port Orchard are excluded from the cost basis on the premise that the CFC should only recover costs actually incurred by City ratepayers. » The City's records identified $5.0 million in stormwater grants and contributions in aid of construction (developer donations) received by the utility. • Plus: Interest on Non -Contributed Plant: The RCW and subsequent legal interpretations provide such charges can include interest on an asset at the rate applicable at the time of construction. Interest can accumulate for a maximum of ten years from the date of construction for any particular asset. Conceptually, this interest provision attempts to account for the opportunity �� FC5 GROUP I] www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 17 costs that the City's customers incurred by supporting investments in infrastructure rather than having it available for other needs. » Accumulated interest on non -contributed assets adds approximately $2.4 million to the existing cost basis. • Less: Net Debt Principal Outstanding: Another adjustment to the existing cost basis is to deduct the net liability of outstanding utility debt, since that new customers will bear a proportionate share of annual debt service through ongoing utility rates. Outstanding debt represents assets that have been placed into service, but that today's ratepayers have not yet paid for. » The City currently has two outstanding loans relating to its stormwater utility, with $1.8 million in debt principal outstanding. As of the beginning of 2022, however, beginning cash balances total $2.5 million. Since cash balances exceed the outstanding debt, no deduction is made from the cost basis as cash could theoretically be used to reduce the debt principal. The sum of these elements results in a total existing cost basis of $13.6 million. Exhibit 17: Stormwater Utility Existing Cost Basis Utility Capital Assets $13,264,328 Iiss: Contributed Capital (5,010,051) Plus: Interest on Non -Contributed Plant 2,353,859 Plus: Construction -Work -in -Progress ' 2,976,234 Less: Net Debt Principal Outstanding - Total Existing Cost Basis JMJ $ 13,584,37, Future Cost Basis The future cost basis is intended to recognize the ratepayers' net investment in the projects to be completed in the future. The main elements of the calculation include the capital improvement plan, and in some cases, offsetting grants. One additional adjustment to these numbers is a provision for capital retirements, which is also discussed below. Exhibit 18 summarizes these elements for each level of service. Each level of service has a unique future cost basis. • Capital Improvement Plan: A utility capital improvement plan (CIP) includes projects that address many needs, including system expansion, upgrades and the repair and replacement of infrastructure. In some cases, a single CIP project can serve more than one of these purposes. The City's CIP covers years 2022 through 2041 and project costs are in 2022 dollars. Note: We do not escalate capital projects in a CFC for a couple of reasons. First, we do not know with certainty when projects will be constructed or what inflation will be. Second, we prefer to use the original cost in the calculation, and then the City can increase the charges with the Engineering News -Record Construction Cost Index or another inflator to accomplish the same thing with more accuracy. �� F C 5 GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 18 • Less: Developer Contributions/Grants: Projects or portions of projects assumed to be funded by grants may be excluded from the calculation. It is assumed that without the level of grant funding noted, corresponding projects would not be executed. » All levels of service include $500,000 in assistance from the general fund, as listed in the City's 2023 budget. Our understanding is that this is a contribution from the general fund for a portion of a multi -purpose property acquisition. • Less: Provision for Capital Retirement: Many capital projects are replacing existing assets. To avoid including the value of these projects twice — once in the existing assets and again in the capital plan — a provision for capital retirement is used on projects or portions thereof that are deemed repair and replacement (R&R). The provision for capital retirement determines the approximate original cost of the asset the R&R project is replacing, using the useful life of the new project and the historic ENR Construction Cost Index. The sum of the provision for capital retirement calculations is then removed from the future capital project total. In simple terms, if a retention pond expected to last 50 years is being installed in 2018 (and replacing an existing pond), the provision for retirement determines how much that asset cost in 1968 and removes that portion of the project cost from the calculation. Exhibit 18: SWM Utility Future Project Costs Summary by LOS (2022 $) DescriptionA=m we Total Citywide Projects (uninflated, before grants) $44,150,628 $46,950,628 $45,010,628 Less: Assumed Grants (19,365,000) (13,250,000) ■ Less: General Fund Contribution (500,000) (500,000) (500,000) Less: Provision for Repair & (3,487,088) (3,797,339) (3,584,445) Replacement Total Future Cost Basis $20,798,540 $29,403,289 $40,926,183 Estimated Customer Base (System Capacity) So far, the report has discussed the numerator in the CFC, with its two main components: the value of existing assets and future capital costs. The denominator in the CFC calculation is the projected number of impervious surface units, or ISUs. The same time horizon for both the capital improvement plan and assumed customer growth is used in the CFC calculation — 2022 through 2041. This ensures that the numerator and the denominator cover the same period. �� F C S GROUP www.fcsgroup.com City of Port Orchard December 2022 Exhibit 19: Estimated Customer Base by 2041 Customer Base Existing ISUs as of 8/2022 Estimated ISUs added from 8/2022 through 12/2022 Additional ISUs with Growth 2023-2041 Projected ISUs by 2041 CFC Results Stormwater Utility Rate Study page 19 10,376 250 3,300 -Aft 13,926� The following exhibit shows summary calculations for the City's stormwater CFC for each level of service. Per the City's municipal code, one impervious surface unit (ISU) is defined as a single- family residential account (including mobile homes) or 3,000 impervious square feet of ground cover for all other developed parcels. It is assumed that the City would use the same definition when administering a stormwater capital facility charge if a stormwater CFC were to be implemented. Exhibit 20: CFC Calculation Existing Cost Basis $13,584,371 $13,584,371 $13,584,371 Future Cost Basis 1� 20,798,540 29,403,289 40,926,183 Total Cost Basis ' 34,283,911 42,987,660 54,510,554 Future System Capacity _J& 13,926 ISUs _ 13,926 ISUs 13,926 ISUs Calculated Maximum CFC per ISU '. $2,469 , $3,087 $3,914 As noted previously, these charges reflect the maximum defensible CFC by level of service. The Council could adopt, by policy, a CFC that is lower than the indicated amounts and / or choose to phase -in to a targeted level over a multi -year period. �� F C 5 GROUP www.fcsgroup.com City of Port Orchard December 2022 Section V. Stormwater Utility Rate Study page 20 SUMMARY Exhibits 21, Exhibit 22, and Exhibit 23 detail the rate plans that support each defined level of service. These increases allow the utility to accomplish the following: • Fund existing and forecasted operating expenses, plus cost escalation; • Cover existing and future debt service obligations; • Allow the utility to fund $36 to $58 million in capital projects from 2022-2041, net of grants; • Generate $1.4 to $2.2 million per year for rate -funded capital by 2041; and • Maintain utility reserves at recommended levels throughout the forecast. Exhibit 21: Level of Service 1: Rate Increases Monthly Rate / ISU $14.00 $16.94 $20.50 $24.80 $25.55 $26.31 $27.10 $27.91 $28.75 Changein $2.94 $3.56 $4.30 $0.75 $0.76 $0.79 $0.81 $0.84 Monthly Rate Exhibit 22: Level of Service 2: Rate Adjustments MMMMMMMMM Monthly Rate / ISU $14.00 $18.34 $24.03 $31.47 $32.42 $33.39 $34.39 $35.42 $36.49 Changein Monthly Rate $4.34 $5.69 $7.44 $0.95 $0.97 $4!99� $� 1.03 A Exhibit 23: Level of Service 3: Rate Adjustments Monthly Rate / ISU $14.00 $20.37 $29.64 $43.12 $44.42 $45.75 $47.12 $48.54 $49.99 Changein 1 Monthly Rate $= $9 27i $1I.� $' 1.30 $1.33 $1.37 $1.4 Capital Facility Charge The recommended maximum CFC is $2,469 per ISU for Level of Service 1, $3,087 for Level of Service 2, and $3,914 for Level of Service 3. It is recommended that the CFC be revisited every few years to ensure that the charge is keeping pace with the utility's capital investments and that the adopted charge be indexed for inflation. Single -Family Residential Rate Comparison As a resource to the City and its customers, a rate survey of western Washington stormwater utilities was performed. Exhibit 24 shows monthly single-family residential stormwater bills for a few �� F C S GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 21 neighboring jurisdictions. It also features Port Orchard's existing rate as well as potential rates for each level of service in 2024. Exhibit 24: Regional Jurisdictional Survey - Monthly Single Family Stormwater Rates $35 $30 $25 CHARD $25.06 $20.36 $20.37 $20.88 L $20 $16.94 $17.00 $17.01 $17.54 $18.34 $15.67 $15 $12.65 $13.93 $14.00 T $12.08 $10.80 $10.83 o $10 $5 $0 Pierce Kitsap Pierce Pierce Pierce Port Gig Harbor Port Bainbridge Port Bremerton Port Gig Harbor Port Poulsbo Gig Harbor County County County County County Orchard (Small) Orchard - Island Angeles Orchard - (Medium) Orchard - (2023) (Large) (Base) (2023) (Base+ (Base+ (Base+ LOS1 (2023) LOS2 LOS3 (2023) Water River) WQ & (2024) (2024) (2024) Quality) (2023) River) (2023) (2023) Exhibit 25 shows a wider range of jurisdictions from around western Washington in case that type of comparison is helpful to the City or its customers. Exhibit 25: Western Washington Jurisdictional Survey - Monthly Single Family Stormwater Rates $35 $30 CD $25 T cu $20 d> a> $15 T L O $10 2 $5 $0 $20.37 $18.34 $16.94 $14.00 D� ryo`yO`1' az63, C E;ti p 4, �V"a ',� a U° �Zmi gtiNti ry h F fj S Uro S. a�,� �J o O �, 5 m 5 e c y `V I p k "� m .� o� di Q F c _ Q°� �'c �b �o Q- O� �b�,Am sy �m o ra;° py �° �c'�, �m`3'�0� �� a �cd'' �e� _ �,�F A r �m ao �m gym` �� d, & � c ym — O O m Qo Qo �� FIC5 GROUP www.fcsgroup.com City of Port Orchard Stormwater Utility Rate Study December 2022 page 22 Single -Family Stormwater CFC Comparison FCS GROUP also conducted a survey of western Washington stormwater CFCs. The three potential CFCs of $2,469 for Level of Service 1, $3,087 for Level of Service 2, and $3,914 for Level of Service 3 are on the higher end of charges in the area, but it is important to remember these are simply legal maximums, not required charges. By policy, the City could adopt a charge at any amount up to the calculated charge. Note that some cities, such as Bothell and Redmond, have basin - specific charges that range from $6,000 to $15,000. Exhibit 26: Western Washington Jurisdictional Survey — Single Family Stormwater CFC Redmond Poulsbo Olympia Issaquah Auburn Bothell Bremerton Gig Harbor Sammamish Renton Des Moines (2023) Port Orchard - LOS 1 $2,469 Kent Mountlake Terrace Port Orchard - LOS 2 $3,087 Kenmore Port Orchard - LOS 3 $3,914 $0 $500 $1,000 $1,500 $2,000 $2,500 $3,000 $3,500 $4,000 $4,500 Updating This Study's Findings It is recommended that the City revisit the study findings during the forecast period to check that the assumptions used are still appropriate and no significant changes have occurred that would alter the results of the study. The City should use the study findings as a living document, routinely comparing the study outcomes to actual revenues and expenses. Any significant or unexpected changes will require adjustments to the rate strategy proposed in this report. �� F C S GROUP www.fcsgroup.com City of Port Orchard December 2022 MODEL APPENDICES Stormwater Utility Rate Study page 23 ••; FCS GROUP www.fcsgroup.com Port Orchard Utility Rate Study: Stormwater Utility Summary Level of Service 1 Revenues Rate Revenues Under Existing Rates $ 1,766,827 $ 1,816,709 $ 1,866,592 $ 1,916,474 $ 1,941,415 $ 1,966,356 $ 1,991,297 $ 2,016,238 $ 2,041,179 $ 2,066,120 $ 2,091,061 $ 2,116,003 $ 2,140,944 $ 2,165,885 $ 2,190,826 $ 2,215,767 $ 2,240,708 $ 2,265,649 $ 2,290,590 $ 2,315,531 Non -Rate Revenues 201,380 72,892 66,976 67,861 68,475 70,184 70,559 74,266 74,737 77,394 77,900 81,858 82,402 89,650 90,234 93,730 94,358 100,068 100,742 105,055 Total Revenues $ 1,968,207 $ 1,889,601 $ 1,933,567 $ 1,984,334 $ 2,009,890 $ 2,036,540 $ 2,061,856 $ 2,090,504 $ 2,115,917 $ 2,143,514 $ 2,168,962 $ 2,197,860 $ 2,223,345 $ 2,255,535 $ 2,281,060 $ 2,309,497 $ 2,335,066 $ 2,365,717 $ 2,391,332 $ 2,420,586 Expenses Cash Operating Expenses $ 1,610,383 $ 1,974,677 $ 1,957,605 $ 2,041,830 $ 2,218,577 $ 2,245,086 $ 2,318,786 $ 2,395,059 $ 2,474,002 $ 2,555,716 $ 2,640,307 $ 2,727,883 $ 2,818,558 $ 2,912,450 $ 3,009,683 $ 3,110,383 $ 3,214,685 $ 3,322,726 $ 3,434,652 $ 3,550,611 Existing Debt Service 177,047 177,877 176,883 177,604 178,251 177,075 177,612 178,077 178,468 177,036 189,615 16,525 16,525 16,525 16,525 8,263 - - - - New Debt Service 24,088 24,088 168,615 168,615 264,966 264,966 417,522 417,522 714,606 714,606 843,074 843,074 1,067,894 1,067,894 1,228,479 1,228,479 Total Expenses $ 1,787,429 $ 2,152,554 $ 2,134,488 $ 2,219,434 $ 2,420,916 $ 2,446,249 $ 2,665,013 $ 2,741,750 $ 2,917,436 $ 2,997,718 $ 3,247,444 $ 3,161,931 $ 3,549,689 $ 3,643,581 $ 3,869,282 $ 3,961,720 $ 4,282,579 $ 4,390,620 $ 4,663,131 $ 4,779,090 Net Surplus (Deficiency) $ 180,778 $ (262,953) $ (200,921) $ (235,099) $ (411,026) $ (409,710) $ (603,158) $ (651,247) $ (801,519) $ (854,204 Additions to Meet Coverage - Total Surplus (Deficiency) $ 180,778 $ (262,953) $ (200,921) $ (235,099) $ (411,026) $ (409,710) $ (603,158) $ (651,247) $ (801,519) $ (854,204 .................................................................-......................-..................-..................-..................-..................-..................-..................-..................-..................-................. Annual Rate Increase 0.00 % 21.00 % 21.00 % 21.00 % 3.00 % 3.00 % 3.00 % 3.00 % 3.009 Cumulative Rate Increase .................................................................-......................-..................-..................-..................-..................-..................-..................-..................-..................-................. 0.00% 21.00% 46.41 % 77.16% 82.47% 87.94% 93.58% 99.39% 105.379 Revenues After Rate Increases $ 1,766,827 $ 1,816,709 $ 2,258,576 $ 2,805,909 $ 3,439,335 $ 3,588,025 $ 3,742,541 $ 3,903,099 $ 4,069,923 $ 4,243,242 Additional Taxes from Rate Increase 26,459 60,037 101,110 109,463 118,209 127,363 136,940 146.95E Net Cash Flow After Rate Increase $ 180,778 $ (262,953) $ 164,604 $ 594,299 $ 985,785 $ 1,102,497 $ 1,029,878 $ 1,108,252 $ 1,090,284 $ 1,175,963 Coverage After Rate Increase: Bonded Debt n/a n/a n/a n/a 54.16 59.32 8.77 9.39 6.20 6.59 Coverage After Rate Increase: Total Debt 2.03 0.22 2.57 4.96 6.45 7.10 4.27 4.56 3.70 3.95 Sample Residential Bill (1 ISU) $14.00 $14.00 $16.94 $20.50 $24.80 $25.55 $26.31 $27.10 $27.91 $28.75 Increase ($) $0.00 $2.94 $3.56 $4.30 $0.74 $0.77 $0.79 $0.81 $0.84 $ (1,078,482) $ (964,070) $ (1,326,343) $ (1,388,046) $ (1,588,222) $ (1,652,222) $ (1,947,512) $ (2,024,903) $ (2,271,798) $ (2,358,504) - - (45.169) - (72,770) (65,918) (141.254) (122,588) (176.114) (157,428) $ (1,078,482) $ (964,070) $ (1,371,513) $ (1,388,046) $ (1,660,992) $ (1,718,141) $ (2,088,766) $ (2,147,491) $ (2,447,913) $ (2,515,932) ...................-................... 3.00% -................... 3.00% -................... 3.00% -................... 3.00% -................... 3.00% -................... 3.00% -................... 3.00% -................... 3.00% -..................... 3.00% 3.00% 111.53% ...................-................... 117.88% -................... 124.42% -................... 131.15% -................... 138.08% -................... 145.23% -................... 152.58% -................... 160.16% -................... 167.96% -..................... 176.00% $ 4,423,299 $ 4,610,339 $ 4,804,621 $ 5,006,411 $ 5,215,984 $ 5,433,625 $ 5,659,630 $ 5,894,306 $ 6,137,969 $ 6,390,946 157,426 168,368 179,798 191,736 204,198 217,205 230,777 244,934 259,698 275,090 $ 1,096,329 $ 1,361,899 $ 1,157,536 $ 1,260,744 $ 1,232,738 $ 1,348,430 $ 1,240,633 $ 1,358,819 $ 1,315,882 $ 1,441,820 4.35 4.61 2.81 3.04 2.63 2.77 2.28 2.41 2.18 2.30 2.99 4.43 2.74 2.97 2.58 2.74 2.28 2.41 2.18 2.30 $29.61 $30.50 $31.42 $32.36 $33.33 $34.33 $35.36 $36.42 $37.52 $38.64 $0.86 $0.89 $0.92 $0.94 $0.97 $1.00 $1.03 $1.06 $1.09 $1.13 Operating Reserve - 421 Beginning Balance $ 2,116,332 $ 706,309 $ 443,357 $ 482,697 $ 509,989 $ 561,850 $ 578,514 $ 598,746 $ 619,710 $ 641,433 $ 663,943 $ 687,270 $ 711,446 $ 736,502 $ 762,472 $ 789,391 $ 817,294 $ 846,220 $ 876,206 $ 907,295 plus: Net Cash Flow after Rate Increase 180,778 (262,953) 164,604 594,299 985,785 1,102,497 1,029,878 1,108,252 1,090,284 1,175,963 1,096,329 1,361,899 1,157,536 1,260,744 1,232,738 1,348,430 1,240,633 1,358,819 1,315,882 1,441,820 less: Transfer of Surplus to Capital Fund (1,400,000) (125,264) (567,007) (933,924) (1,085,833) (1,009,646) (1,087,288) (1,068,561) (1,153,452) (1,073,002) (1,337,723) (1,132,480) (1,234,774) (1,205,819) (1,320,527) (1,211,707) (1,328,832) (1,284,793) (1,409,587) less: Transfer to Stabilization Fund (190,800) - - - - - - - - - - - - - - - - - - Ending Balance $ 706,309 $ 443,357 $ 482,697 $ 509,989 $ 561,850 $ 578,514 $ 598,746 $ 619,710 $ 641,433 $ 663,943 $ 687,270 $ 711,446 $ 736,502 $ 762,472 $ 789,391 $ 817,294 $ 846,220 $ 876,206 $ 907,295 $ 939,528 Actual Days of O&M 160 days 82 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days Minimum Balance Requirement $ 264, 720 $ 324, 605 $ 321,798 $ 339,993 $ 374, 567 $ 385, 676 $ 399,164 $ 413,140 $ 427, 622 $ 44Z 628 $ 458,180 $ 474,297 $ 491,001 $ 508,315 $ 526,261 $ 544,863 $ 564,146 $ 584,138 $ 604,863 $ 626,352 Maximum Balance Requirement $ 397,081 $ 486,907 $ 482,697 $ 509,989 $ 561,850 $ 578,514 $ 598,746 $ 619,710 $ 641,433 $ 663,943 $ 687,270 $ 711,446 $ 736,502 $ 762,472 $ 789,391 $ 817,294 $ 846,220 $ 876,206 $ 907,295 $ 939,528 Capital Reserve - 423 Beginning Balance $ 94,014 $ 1,488,130 $ 872,113 $ 615,290 $ 863,525 $ 1,198,860 $ 102,570 $ 1,193,566 $ 263,157 $ 1,056,229 $ 291,318 $ 978,651 $ 440,433 $ 3,318,433 $ 530,307 $ 1,146,633 $ 608,192 $ 1,382,360 $ 732,259 $ 1,507,343 plus: Transfers from Operating Fund 1,400,000 - 125,264 567,007 933,924 1,085,833 1,009,646 1,087,288 1,068,561 1,153,452 1,073,002 1,337,723 1,132,480 1,234,774 1,205,819 1,320,527 1,211,707 1,328,832 1,284,793 1,409,587 plus: Transfers From General Fund - 500,000 - - - - - - - - - - - - - - - - - - plus: Assumed Capital Grants - 883,761 665,231 2,409,798 356,306 1,106,330 2,385,524 493,803 511,087 2,644,873 1,021,979 1,057,748 5,911,754 1,359,703 628,256 4,551,713 502,509 1,560,291 plus: CFC Revenue - - - - - - - - - - - - - - - - - - - - plus: Revenue Bond Proceeds - - - - 300,000 - 1,800,000 - 1,200,000 - 1,900,000 - 3,700,000 - 1,600,000 - 2,800,000 - 2,000,000 - plus:InterestEarnings 2,115 33,483 19,623 13,844 19,429 26,974 2,308 26,855 5,921 23,765 6,555 22,020 9,910 74,665 11,932 25,799 13,684 31,103 16,476 33,915 Total Funding Sources $ 1,496,130 $ 2,021,613 $ 1,900,760 $ 1,861,371 $ 4,526,677 $ 2,667,973 $ 4,020,854 $ 4,693,233 $ 3,031,443 $ 2,744,533 $ 5,915,747 $ 3,360,372 $ 6,340,570 $ 10,539,625 $ 4,707,761 $ 3,121,215 $ 9,185,297 $ 3,244,805 $ 5,593,819 $ 2,950,845 less: Capital Expenditures (Before Grants) (8,000) (1,149,500) (1,285,470) (997,846) (3,327,817) (2,565,402) (2,827,287) (4,430,076) (1,975,214) (2,453,215) (4,937,096) (2,919,939) (3,022,137) (10.009.319) (3,561,128) (2,513,023) (7,802,937) (2,512,546) (4,086,476) (2,095,526) Ending Capital Fund Balance $ 1,488,130 $ 872,113 $ 615,290 $ 863,525 $ 1,198,860 $ 102,570 $ 1,193,566 $ 263,157 $ 1,056,229 $ 291,318 $ 978,651 $ 440,433 $ 3,318,433 $ 530,307 $ 1,146,633 $ 608,192 $ 1,382,360 $ 732,259 $ 1,507,343 $ 855,318 Minimum Target Balance $ 132,723 $ 144,218 $ 148,235 $ 151,562 $ 160,742 $ 182,833 $ 200,042 $ 220,488 $ 235,302 $ 254,723 $ 277,645 $ 296,625 $ 316,269 $ 357,245 $ 379,259 $ 398,106 $ 430,619 $ 450,719 $ 475,981 $ 496,936 Combined Beginning Balance $ 2,210,346 $ 2,194,439 $ 1,315,470 $ 1,097,987 $ 1,373,514 $ 1,760,710 $ 681,085 $ 1,792,313 $ 882,867 $ 1,697,662 $ 955,261 $ 1,665,921 $ 1,151,879 $ 4,054,935 $ 1,292,779 $ 1,936,024 $ 1,425,486 $ 2,228,580 $ 1,608,465 $ 2,414,638 Combined Ending Balance $ 2,194,439 $ 1,315,470 $ 1,097,987 $ 1,373,514 $ 1,760,710 $ 681,085 $ 1,792,313 $ 882,867 $ 1,697,662 E 955,261 $ 1,665,921 $ 1,151,879 $ 4,054,935 $ 1,292,779 $ 1,936,024 $ 1,425,486 $ 2,228,580 $ 1,608,465 $ 2,414,638 $ 1,794,847 Ending Total Days of Operating Expenditures 497 days 243 days 202 days 239 days 277 days 106 days 268 days 128 days 237 days 129 days 217 days 145 days 494 days 152 days 220 days 156 days 236 days 165 days 239 days 171 days Combined Minimum Target Balance 397,444 468,823 470,033 491,554 535,308 568,509 599,206 633,628 662,924 697,352 735,826 770,922 807,270 865,559 905,519 942,969 994,765 1,034,857 1,080,844 1,123,288 PREPARED BY FCS GROUP Port Orchard Stormwater Rate Studyv32 425-867-1802 Summary - Page 1 of 1 12/14/2022 Port Orchard Utility Rate Study: Stormwater Utility Summary Revenues Rate Revenues Under Existing Rates Non -Rate Revenues Total Revenues Expenses Cash Operating Expenses Existing Debt Service New Debt Service Total Expenses Level of Service 2 $ 1,766,827 $ 1,816,709 $ 1,866,592 $ 1,916,474 $ 1,941,415 $ 1,966,356 $ 1,991,297 $ 2,016,238 $ 2,041,179 $ 2,066,120 $ 2,091,061 $ 2,116,003 $ 2,140,944 $ 2,165,885 $ 2,190,826 $ 2,215,767 $ 2,240,708 $ 2,265,649 $ 2,290,590 $ 2,315,531 201,380 72,892 66,976 71,854 76,234 84,666 85,304 89,504 90,084 95,925 96,548 99,543 100,212 111,746 112,465 117,908 118,681 128,514 129,345 135,625 $ 1,968,207 $ 1,889,601 $ 1,933,567 $ 1,988,328 $ 2,017,649 $ 2,051,021 $ 2,076,601 $ 2,105,742 $ 2,131,263 $ 2,162,045 $ 2,187,610 $ 2,215,545 $ 2,241,156 $ 2,277,631 $ 2,303,291 $ 2,333,675 $ 2,359,389 $ 2,394,164 $ 2,419,935 $ 2,451,157 $ 1,610,383 $ 1,974,677 $ 2,079,445 $ 2,385,850 $ 2,614,565 $ 2,658,705 $ 2,785,932 $ 2,879,022 $ 2,975,388 $ 3,075,152 $ 3,178,443 $ 3,285,391 $ 3,396,137 $ 3,510,822 $ 3,629,596 $ 3,752,613 $ 3,880,035 $ 4,012,029 $ 4,148,769 $ 4,290,437 177,047 177,877 176,883 177,604 178,251 177,075 177,612 178,077 178,468 177,036 189,615 16,525 16,525 16,525 16,525 8,263 - - - - 256.937 256,937 562,049 562,049 714,606 714,606 947,455 947,455 1,051,835 1,051,835 1,533,592 1,533,592 1,742,353 1,742,353 2,143,817 2,143,817 2,384,695 2,384,695 $ 1,787,429 $ 2,152,554 $ 2,513,265 $ 2,820,391 $ 3,354,865 $ 3,397,829 $ 3,678,150 $ 3,771,704 $ 4,101,310 $ 4,199,643 $ 4,419,892 $ 4,353,752 $ 4,946,254 $ 5,060,939 $ 5,388,474 $ 5,503,229 $ 6,023,852 $ 6,155,846 $ 6,533,464 $ 6,675,132 Net Surplus (Deficiency) $ 180,778 $ (262,953) $ (579,698) $ (832,063) $ (1,337,216) $ (1,346,808) $ (1,601,549) $ (1,665,963) $ (1,970,047) $ (2,037,597 Additions to Meet Coverage - Total Surplus (Deficiency) $ 180,778 $ (262,953) $ (579,698) $ (832,063) $ (1,337,216) $ (1,346,808) $ (1,601,549) $ (1,665,963) $ (1,970,047) $ (2,037,597 .................................................................-...................... Annual Rate Increase _..................-..................-..................-..................-..................-..................-..................-..................-................. 0.00 % 31.00 % 31.00 % 31.00 % 3.00 % 3.00 % 3.00 % 3.00 % 3.009 Cumulative Rate Increase .................................................................-......................-..................-..................-..................-..................-..................-..................-..................-..................-................. 0.00% 31.00% 71.61 % 124.81 % 131.55% 138.50% 145.65% 153.02% 160.629 Revenues After Rate Increases $ 1,766,827 $ 1,816,709 $ 2,445,235 $ 3,288,861 $ 4,364,477 $ 4,553,164 $ 4,749,243 $ 4,952,989 $ 5,164,686 $ 5,384,627 Additional Taxes from Rate Increase 39,058 92,636 163,557 174,610 186,161 198,231 210,837 223,99f Net Cash Flow After Rate Increase $ 180,778 $ (262,953) $ (40,113) $ 447,688 $ 922,290 $ 1,065,391 $ 970,235 $ 1,072,558 $ 942,623 $ 1,056,910 Coverage After Rate Increase: Bonded Debt n/a n/a 1.97 3.94 3.14 3.47 2.75 2.92 2.30 2.44 Coverage After Rate Increase: Total Debt 2.03 0.22 1.17 2.33 2.38 2.64 2.20 2.33 1.93 2.05 Sample Residential Bill (1 ISU) $14.00 $14.00 $18.34 $24.03 $31.47 $32.42 $33.39 $34.39 $35.42 $36.49 Increase ($) $0.00 $4.34 $5.69 $7.45 $0.94 $0.97 $1.00 $1.03 $1.06 $ (2,232,283) $ (2,138,207) $ (2,705,098) $ (2,783,308) $ (3,085,183) $ (3,169,554) $ (3,664,463) $ (3,761,682) $ (4,113,529) $ (4,223,975) - (110,588) (248.804) (141,863) (295,871) (279,605) (407.182) (379,925) (462,461) (438,203) $ (2,232,283) $ (2,248,795) $ (2,953,902) $ (2,925,171) $ (3,381,053) $ (3,449,159) $ (4,071,645) $ (4,141,608) $ (4,575,990) $ (4,662,179) ...................-................... 3.00% -................... 3.00% -................... 3.00% -................... 3.00% -................... 3.00% -................... 3.00% -................... 3.00% -................... 3.00% -..................... 3.00% 3.00% 168.43% ...................-................... 176.49% -................... 184.78% -................... 193.32% -................... 202.12% -................... 211.19% -................... 220.52% -................... 230.14% -................... 240.04% -..................... 250.25% $ 5,613,116 $ 5,850,469 $ 6,097,010 $ 6,353,079 $ 6,619,024 $ 6,895,209 $ 7,182,007 $ 7,479,808 $ 7,789,013 $ 8,110,039 237,739 252,076 267,034 282,636 298,903 315,862 333,538 351,956 371,144 391,129 $ 1,052,033 $ 1,344,183 $ 983,934 $ 1,121,250 $ 1,044,112 $ 1,194,026 $ 943,299 $ 1,100,521 $ 1,013,750 $ 1,179,403 2.29 2.42 1.73 1.89 1.68 1.77 1.50 1.59 1.48 1.56 1.94 2.39 1.71 1.87 1.66 1.77 1.50 1.59 1.48 1.56 $37.58 $38.71 $39.87 $41.07 $42.30 $43.57 $44.87 $46.22 $47.61 $49.03 $1.09 $1.13 $1.16 $1.20 $1.23 $1.27 $1.31 $1.35 $1.39 $1.43 2027 2029 2030 2031 2033 2034i 0-0 Operating Reserve - 421 Beginning Balance $ 2,116,332 $ 706,309 $ 443,357 $ 403,244 $ 597,923 $ 667,529 $ 695,900 $ 729,997 $ 755,799 $ 782,536 $ 810,244 $ 838,958 $ 868,717 $ 899,559 $ 931,526 $ 964,660 $ 999,004 $ 1,034,605 $ 1,071,510 $ 1,109,768 plus: Net Cash Flow after Rate Increase 180,778 (262,953) (40,113) 447,688 922,290 1,065,391 970,235 1,072,558 942,623 1,056,910 1,052,033 1,344,183 983,934 1,121,250 1,044,112 1,194,026 943,299 1,100,521 1,013,750 1,179,403 less: Transfer of Surplus to Capital Fund (1,400,000) (253,009) (852,684) (1,037,019) (936,139) (1,046,756) (915,886) (1,029,202) (1,023,319) (1,314,424) (953,092) (1,089,283) (1,010,979) (1,159,682) (907,698) (1,063,616) (975,492) (1,139,740) less: Transfer to Stabilization Fund (190,800) - - - - - - - - - - - - - Ending Balance $ 706,309 $ 443,357 $ 403,244 $ 597,923 $ 667,529 $ 695,900 $ 729,997 $ 755,799 $ 782,536 $ 810,244 $ 838,958 $ 868,717 $ 899,559 $ 931,526 $ 964,660 $ 999,004 $ 1,034,605 $ 1,071,510 $ 1,109,768 $ 1,149,431 Actual Days of O&M 160 days 82 days 71 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days Minimum Balance Requirement $264,720 $324,605 $341,826 $398,615 $445,019 $463,933 $486,664 $503,866 $521,691 $540,163 $ 559,306 $ 579,145 $ 599,706 $ 621,017 $ 643,107 $ 666,003 $ 689,737 $ 714,340 $ 739,845 $ 766,287 Maximum Balance Requirement $ 397,081 $ 486,907 $ 51Z740 $ 597,923 $ 667,529 $ 695,900 $ 729,997 $ 755,799 $ 782,536 $ 810,244 $ 838,958 $ 868,717 $ 899,559 $ 931,526 $ 964,660 $ 999,004 $ 1,034,605 $ 1,071,510 $ 1,109,768 $ 1,149,431 Capital Reserve - 423 Beginning Balance $ 94,014 $ 1,488,130 $ 872,113 $ 1,510,083 $ 133,992 $ 2,056,291 $ 229,746 $ 796,932 $ 271,269 $ 1,130,438 $ 413,309 $ 1,335,328 $ 489,843 $ 5,187,353 $ 606,715 $ 1,641,433 $ 743,861 $ 1,899,834 $ 852,586 $ 1,875,278 plus: Transfers from Operating Fund 1,400,000 - - 253,009 852,684 1,037,019 936,139 1,046,756 915,886 1,029,202 1,023,319 1,314,424 953,092 1,089,283 1,010,979 1,159,682 907,698 1,063,616 975,492 1,139,740 plus: Transfers From General Fund - 500,000 - - - - - - - - - - - - - - - - - - plus: Assumed Capital Grants - - 589,174 443,487 1,606,532 1,722,145 1,044,867 318,070 1,646,011 - - 729,985 755,534 4,222,681 971,217 418,837 3,034,476 358,935 1,114,494 - plus: CFC Revenue - - - - - - - - - - - - - - - - - - - - plus: Revenue Bond Proceeds - - 3,200,000 - 3,800,000 - 1,900,000 - 2,900,000 - 1,300,000 - 6,000,000 - 2,600,000 - 5,000,000 - 3,000,000 - plus:InterestEarnings 2,115 33,483 19,623 33,977 3,015 46,267 5,169 17,931 6,104 25,435 9,299 30,045 11,021 116,715 13,651 36,932 16,737 42,746 19,183 42,194 Total Funding Sources $ 1,496,130 $ 2,021,613 $ 4,680,909 $ 2,240,556 $ 6,396,223 $ 4,861,722 $ 4,115,921 $ 2,179,688 $ 5,739,270 $ 2,185,075 $ 2,745,927 $ 3,409,782 $ 8,209,490 $ 10,616,033 $ 5,202,561 $ 3,256,884 $ 9,702,771 $ 3,365,132 $ 5,961,755 $ 3,057,212 less: Capital Expenditures (Before Grants) (8,000) (1,149,500) (3,170,826) (2,106,564) (4,339,932) (4,631,977) (3,318,989) (1,908,419) (4,608,832) (1,771,767) (1,410,599) (2,919,939) (3,022,137) (10.009.319) (3,561,128) (2,513,023) (7,802,937) (2,512,546) (4,086,476) (2,095,526) Ending Capital Fund Balance $ 1,488,130 $ 872,113 $ 1,510,083 $ 133,992 $ 2,056,291 $ 229,746 $ 796,932 $ 271,269 $ 1,130,438 $ 413,309 $ 1,335,328 $ 489,843 $ 5,187,353 $ 606,715 $ 1,641,433 $ 743,861 $ 1,899,834 $ 852,586 $ 1,875,278 $ 961,686 Minimum Target Balance $ 132,723 $ 144,218 $ 170,035 $ 186,666 $ 214,000 $ 243,098 $ 265,839 $ 281,743 $ 311,371 $ 329,088 $ 343,194 $ 365,094 $ 387,760 $ 445,626 $ 471,526 $ 492,467 $ 540,152 $ 561,688 $ 591,408 $ 612,363 Combined Beginning Balance $ 2,210,346 $ 2,194,439 $ 1,315,470 $ 1,913,327 $ 731,915 $ 2,723,820 $ 925,646 $ 1,526,928 $ 1,027,068 $ 1,912,974 $ 1,223,553 $ 2,174,286 $ 1,358,560 $ 6,086,912 $ 1,538,241 $ 2,606,093 $ 1,742,865 $ 2,934,439 $ 1,924,096 $ 2,985,046 Combined Ending Balance $ 2,194,439 $ 1,315,470 $ 1,913,327 $ 731,915 $ 2,723,820 $ 925,646 $ 1,526,928 $ 1,027,068 $ 1,912,974 $ 1,223,553 $ 2,174,286 $ 1,358,560 $ 6,086,912 $ 1,538,241 $ 2,606,093 $ 1,742,865 $ 2,934,439 $ 1,924,096 $ 2,985,046 $ 2,111,116 Ending Total Days of Operating Expenditures 497 days 243 days 330 days 108 days 358 days 119 days 188 days 122 days 219 days 135 days 232 days 140 days 607 days 148 days 242 days 156 days 254 days 161 days 241 days 165 days Combined Minimum Target Balance 397,444 468,823 511,861 585,281 659,019 707,031 752,504 785,608 833,062 869,251 902,500 944,239 987,466 1,066,644 1,114,632 1,158,470 1,229,889 1,276,028 1,331,253 1,378,650 PREPARED BY FCS GROUP Port Orchard Stormwater Rate Studyv32 425-867-1802 Summary - Page 1 of 1 12/14/2022 Port Orchard Utility Rate Study: Stormwater Utility Summary Level of Service 3 Revenues Rate Revenues Under Existing Rates $ 1,766,827 $ 1,816,709 $ 1,866,592 $ 1,916,474 $ 1,941,415 $ 1,966,356 $ 1,991,297 $ 2,016,238 $ 2,041,179 $ 2,066,120 $ 2,091,061 $ 2,116,003 $ 2,140,944 $ 2,165,885 $ 2,190,826 $ 2,215,767 $ 2,240,708 $ 2,265,649 $ 2,290,590 $ 2,315,531 Non -Rate Revenues 201,380 72,892 66,976 76,023 82,864 119,173 120,132 134,666 134,636 136,737 137,417 138,482 139,212 139,925 140,663 141,426 142,215 143,032 143,877 144,752 Total Revenues $ 1,968,207 $ 1,889,601 $ 1,933,567 $ 1,992,497 $ 2,024,279 $ 2,085,529 $ 2,111,429 $ 2,150,904 $ 2,175,816 $ 2,202,858 $ 2,228,478 $ 2,254,485 $ 2,280,156 $ 2,305,810 $ 2,331,488 $ 2,357,192 $ 2,382,923 $ 2,408,681 $ 2,434,467 $ 2,460,283 Expenses Cash Operating Expenses $ 1,610,383 $ 1,974,677 $ 2,146,526 $ 2,455,346 $ 2,725,819 $ 2,770,589 $ 3,029,991 $ 3,008,164 $ 3,109,179 $ 3,213,759 $ 3,322,039 $ 3,434,158 $ 3,550,259 $ 3,670,492 $ 3,795,014 $ 3,923,987 $ 4,057,578 $ 4,195,964 $ 4,339,325 $ 4,487,853 Existing Debt Service 177,047 177,877 176,883 177,604 178,251 177,075 177,612 178,077 178,468 177,036 189,615 16,525 16,525 16,525 16,525 8,263 - - - - New Debt Service 529,932 529,932 2,055,495 2,055,495 2,633,603 2,633,603 2,697,837 2,697,837 2,713,895 2,713,895 2,713,895 2,713,895 2,713,895 2,713,895 2,713,895 2,713,895 2,713,895 2,713,895 Total Expenses $ 1,787,429 $ 2,152,554 $ 2,853,341 $ 3,162,882 $ 4,959,565 $ 5,003,159 $ 5,841,206 $ 5,819,843 $ 5,985,483 $ 6,088,632 $ 6,225,549 $ 6,164,578 $ 6,280,679 $ 6,400,913 $ 6,525,435 $ 6,646,144 $ 6,771,473 $ 6,909,859 $ 7,053,221 $ 7,201,748 Net Surplus (Deficiency) $ 180,778 $ (262,953) $ (919,774) $ (1,170,385) $ (2,935,286) $ (2,917,630) $ (3,729,777) $ (3,668,938) $ (3,809,667) $ (3,885,774 Additions to Meet Coverage - (234,568) (27.737) (372,042) (356,472) (381,437) (373.694 Total Surplus (Deficiency) $ 180,778 $ (262,953) $ (919,774) $ (1,170,385) $ (3,169,854) $ (2,945,367) $ (4,101,819) $ (4,025,410) $ (4,191,104) $ (4,259,468 .......ual....Ra.....te..I.n..cre....a..se.............................................................. Ann ......... .0.0......%..-......... 0 4.5....5.0 ...% ........... 4.5....5.0 ...% ........... 4.5....5.0 ...% ............. 3...00...-........... ..% ..% 3...00...-........... 3...00...-........... ..% ..% 3...00...-........... 3...00..9 .. Cumulative Rate Increase .................................................................-......................-..................-..................-..................-..................-..................-..................-..................-..................-................. 0.00% 45.50% 111.70% 208.03% 217.27% 226.79% 236.59% 246.69% 257.091) Revenues After Rate Increases $ 1,766,827 $ 1,816,709 $ 2,715,891 $ 4,057,223 $ 5,980,085 $ 6,238,617 $ 6,507,280 $ 6,786,447 $ 7,076,508 $ 7,377,865 Additional Taxes from Rate Increase 57,328 144,501 272,610 288,378 304,829 321,989 339,885 358,54: Net Cash Flow After Rate Increase $ 180,778 $ (262,953) $ (127,803) $ 825,864 $ 830,774 $ 1,066,254 $ 481,377 $ 779,282 $ 885,777 $ 1,067,428 Coverage After Rate Increase: Bonded Debt n/a n/a 1.31 3.24 1.54 1.76 1.29 1.41 1.44 1.51 Coverage After Rate Increase: Total Debt 2.03 0.22 0.98 2.43 1.42 1.62 1.21 1.32 1.35 1.41 Sample Residential Bill (1 ISU) $14.00 $14.00 $20.37 $29.64 $43.12 $44.42 $45.75 $47.12 $48.54 $49.99 Increase ($) $0.00 $6.37 $9.27 $13.49 $1.29 $1.33 $1.37 $1.41 $1.46 $ (3,997,071) $ (3,910,094) $ (4,000,523) $ (4,095,103) $ (4,193,946) $ (4,288,952) $ (4,388,550) $ (4,501,178) $ (4,618,753) $ (4,741,465) (370,751) (542,673) (541.336) (539,218) (536.382) (541,112) (544.988) (539,774) (538,391) (532,933) $ (4,367,822) $ (4,452,766) $ (4,541,859) $ (4,634,321) $ (4,730,328) $ (4,830,064) $ (4,933,538) $ (5,040,951) $ (5,157,145) $ (5,274,398) ...................-................... 3.00% -................... 1.50% -................... 1.50% -................... 1.50% -................... 1.50% -................... 1.50% -................... 1.50% -................... 1.50% -..................... 1.50% 1.50% 267.80% ...................-................... 273.32% -................... 278.92% -................... 284.60% -................... 290.37% -................... 296.23% -................... 302.17% -................... 308.20% -................... 314.32% -..................... 320.54% $ 7,690,935 $ 7,899,408 $ 8,112,405 $ 8,330,015 $ 8,552,328 $ 8,779,436 $ 9,011,433 $ 9,248,414 $ 9,490,478 $ 9,737,722 377,991 390,380 403,074 416,079 429,401 443,048 457,024 471,337 485,992 500,998 $ 1,224,811 $ 1,482,932 $ 1,567,865 $ 1,652,949 $ 1,738,155 $ 1,831,670 $ 1,925,151 $ 2,010,251 $ 2,095,142 $ 2,179,728 1.56 1.60 1.63 1.66 1.69 1.73 1.76 1.79 1.82 1.86 1.46 1.59 1.62 1.65 1.68 1.72 1.76 1.79 1.82 1.86 $51.49 $52.26 $53.05 $53.84 $54.65 $55.47 $56.30 $57.15 $58.01 $58.88 $1.50 $0.77 $0.78 $0.80 $0.81 $0.82 $0.83 $0.84 $0.86 $0.87 2026 2027 2029 2030 2031 2033 2034 2035 2036 2037i Operating Reserve - 421 Beginning Balance $ 2,116,332 $ 706,309 $ 443,357 $ 315,554 $ 619,563 $ 707,750 $ 750,378 $ 818,228 $ 816,902 $ 846,041 $ 876,241 $ 907,541 $ 939,982 $ 971,664 $ 1,004,441 $ 1,038,352 $ 1,073,438 $ 1,109,743 $ 1,147,312 $ 1,186,191 plus: Net Cash Flow after Rate Increase 180,778 (262,953) (127,803) 825,864 830,774 1,066,254 481,377 779,282 885,777 1,067,428 1,224,811 1,482,932 1,567,865 1,652,949 1,738,155 1,831,670 1,925,151 2,010,251 2,095,142 2,179,728 less: Transfer of Surplus to Capital Fund (1,400,000) (521,855) (742,587) (1,023,626) (413,527) (780,607) (856,638) (1,037,228) (1,193,511) (1,450,491) (1,536,182) (1,620,172) (1,704,244) (1,796,583) (1,888,846) (1,972,682) (2,056,263) (2,139,491) less: Transfer to Stabilization Fund (190,800) - - - - - - - - - - Ending Balance $ 706,309 $ 443,357 $ 315,554 $ 619,563 $ 707,750 $ 750,378 $ 818,228 $ 816,902 $ 846,041 $ 876,241 $ 907,541 $ 939,982 $ 971,664 $ 1,004,441 $ 1,038,352 $ 1,073,438 $ 1,109,743 $ 1,147,312 $ 1,186,191 $ 1,226,428 Actual Days of O&M 160 days 82 days 54 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days 90 days Minimum Balance Requirement $ 264,720 $ 324,605 $ 35Z854 $ 413,042 $ 471,833 $ 500,252 $ 545,485 $ 544,602 $ 564,028 $ 584,161 $ 605,027 $ 626,655 $ 647,776 $ 669,627 $ 692,234 $ 715,625 $ 739,829 $ 764,875 $ 790,794 $ 817,618 Maximum Balance Requirement $ 397,081 $ 486,907 $ 529,280 $ 619,563 $ 707,750 $ 750,378 $ 818,228 $ 816,902 $ 846,041 $ 876,241 $ 907,541 $ 939,982 $ 971,664 $ 1,004,441 $ 1,038,352 $ 1,073,438 $ 1,109,743 $ 1,147,312 $ 1,186,191 $ 1,226,428 Capital Reserve - 423 Beginning Balance $ 94,014 $ 1,488,130 $ 872,113 $ 3,956,693 $ 177,050 $ 9,366,409 $ 408,055 $ 1,024,008 $ 555,376 $ 907,701 $ 602,456 $ 598,923 $ 602,920 $ 641,599 $ 712,251 $ 813,826 $ 953,372 $ 1,129,682 $ 1,135,692 $ 1,322,869 plus: Transfers from Operating Fund 1,400,000 - - 521,855 742,587 1,023,626 413,527 780,607 856,638 1,037,228 1,193,511 1,450,491 1,536,182 1,620,172 1,704,244 1,796,583 1,888,846 1,972,682 2,056,263 2,139,491 plus: Transfers From General Fund - 500,000 - - - - - - - - - - - - - - - - - plus: Assumed Capital Grants - - - - - - - - - - - - - - - - - - - - plus: CFC Revenue - - - - - - - - - - - - - - - - - - - - plus: Revenue Bond Proceeds - - 6,600,000 - 19,000,000 - 7,200,000 - 800,000 - 200,000 - - - - - - - - - plus:InterestEarnings 2,115 33,483 19,623 89,026 3,984 210,744 9,181 23,040 12,496 20,423 13,555 13,476 13,566 14,436 16,026 18,311 21,451 25,418 25,553 29,765 Total Funding Sources $ 1,496,130 $ 2,021,613 $ 7,491,735 $ 4,567,573 $19,923,621 $10,600,779 $ 8,030,764 $ 1,827,656 $ 2,224,510 $ 1,965,353 $ 2,009,522 $ 2,062,890 $ 2,152,668 $ 2,276,207 $ 2,432,521 $ 2,628,720 $ 2,863,668 $ 3,127,782 $ 3,217,508 $ 3,492,124 less: Capital Expenditures (Before Grants) (8,000) (1,149,500) (3,535,043) (4,390,523) (10,557,212) (10,192,724) (7,006,755) (1,272,279) (1,316,809) (1,362,897) (1,410,599) (1,459,970) (1,511,069) (1.563.956) (1,618,695) (1,675,349) (1,733,986) (1,992,090) (1,894,639) (1,960,951) Ending Capital Fund Balance $ 1,488,130 $ 872,113 $ 3,956,693 $ 177,050 $ 9,366,409 $ 408,055 $ 1,024,008 $ 555,376 $ 907,701 $ 602,456 $ 598,923 $ 602,920 $ 641,599 $ 712,251 $ 813,826 $ 953,372 $ 1,129,682 $ 1,135,692 $ 1,322,869 $ 1,531,173 Minimum Target Balance $ 132,723 $ 144,218 $ 179,569 $ 223,474 $ 329,046 $ 430,973 $ 501,041 $ 513,764 $ 526,932 $ 540,561 $ 554,667 $ 569,266 $ 584,377 $ 600,017 $ 616,204 $ 632,957 $ 650,297 $ 670,218 $ 689,164 $ 708,774 Combined Beginning Balance $ 2,210,346 $ 2,194,439 $ 1,315,470 $ 4,272,247 $ 796,614 $10,074,159 $ 1,158,433 $ 1,842,236 $ 1,372,279 $ 1,753,743 $ 1,478,696 $ 1,506,464 $ 1,542,902 $ 1,613,264 $ 1,716,692 $ 1,852,178 $ 2,026,810 $ 2,239,425 $ 2,283,004 $ 2,509,060 Combined Ending Balance $ 2,194,439 $ 1,315,470 $ 4,272,247 $ 796,614 $10,074,159 $ 1,158,433 $ 1,842,236 $ 1,372,279 $ 1,753,743 $ 1,478,696 $ 1,506,464 $ 1,542,902 $ 1,613,264 $ 1,716,692 $ 1,852,178 $ 2,026,810 $ 2,239,425 $ 2,283,004 $ 2,509,060 $ 2,757,600 Ending Total Days of Operating Expenditures 497 days 243 days 708 days 112 days 1, 226 days 138 days 202 days 150 days 186 days 151 days 149 days 147 days 149 days 153 days 160 days 169 days 181 days 179 days 190 days 202 days Combined Minimum Target Balance 397,444 468,823 532,422 636,516 800,879 931,225 1,046,526 1,058,365 1,090,959 1,124,721 1,159,694 1,195,921 1,232,153 1,269,644 1,308,438 1,348,582 1,390,126 1,435,092 1,479,958 1,526,392 PREPARED BY FCS GROUP Port Orchard Stormwater Rate Studyv32 425-867-1802 Summary - Page 1 of 1 12/14/2022 December 2022 ti HERRERA City of Port Orchard Stormwater and Watersheds Comprehensive Plan