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Home My WebLink About09/16/2025 - Work Study - Additional Docs-General Sewer Plan Updateof Port Orchard General Sewer Plan Update City Council Meeting September 16, 2025 4\ l'()Ilti()I' .Y.V�+bt6�'°- +.rf.7oiio6i�—F__—,�.w`�a- _ir-7B,_T '.Y{' .•' rya Consor Team Introductions Erika Schuyler, PE, PMP Project Manager Adam Schuyler, PE, PMP Principal -in -Charge, Technical Advisor, Quality Management General Sewer Plan Update • Meets WAC 173-240-050 • General Overview H T•••• • Next Steps 111111111 General Sewer Plan Update WAC 173-240-050 • WAC 173-240-050 General sewer plan. (1) All general sewer plans required of any governmental agency before providing sewer service are "plans" within the requirements of RCW 90.48.110. Three copies of the proposed general sewer plan and each amendment to it must be submitted to and approved by the department before implementing the plan. (2) The general sewer plan must be sufficiently complete so that engineering reports can be developed from it without substantial alterations of concept and basic considerations. (3) The general sewer plan shall include the following information together with any other relevant data as requested by the department. To satisfy the requirements of the local government jurisdiction, additional information may be necessary. (a) The purpose and need for the proposed plan. (b) A discussion of who will own, operate, and maintain the systems. (c) The existing and proposed service boundaries. (d) Layout map including the following: (i) Boundaries. The boundary lines of the municipality or special district to be sewered, including a vicinity map; (ii) Existing sewers. The location, size, slope, capacity, direction of flow of all existing trunk sewers, and the boundaries of the areas served by each; (iii) Proposed sewers. The location, size, slope, capacity, direction of flow of all proposed trunk sewers, and the boundaries of the areas to be served by each; (iv) Existing and proposed pump stations and force mains. The location of all existing and proposed pumping stations and force mains, designated to distinguish between those existing and proposed; (v) Topography and elevations. Topography showing pertinent ground elevations and surface drainage must be included, as well as proposed and existing streets; (vi) Streams, lakes, and other bodies of water. The location and direction of flow of major streams, the high and low elevations of water surfaces at sewer outlets, and controlled overflows, if any. All existing and potential discharge locations should I I be noted; and (vii) Water systems. The location of wells or other sources of water supply, water storage reservoirs and treatment plants, and water transmission facilities. (e) The population trend as indicated by available records, and the estimated future population for the stated design period. Briefly describe the method used to determine future population trends and the concurrence of any applicable local or regional planning agencies. (f) Any existing domestic or industrial wastewater facilities within twenty miles of the general plan area and within the same topographical drainage basin containing the general plan area. (g) A discussion of any infiltration and inflow problems and a discussion of actions that will alleviate these problems in the future. (h) A statement regarding provisions for treatment and discussion of the adequacy of the treatment. (i) List of all establishments producing industrial wastewater, the quantity of wastewater and periods of production, and the character of the industrial wastewater insofar as it may affect the sewer system or treatment plant. Consideration must be given to future industrial expansion. (j) Discussion of the location of all existing private and public wells, or other sources of water supply, and distribution structures as they are related to both existing and proposed domestic wastewater treatment facilities. (k)Discussion of the various alternatives evaluated, and a determination of the alternative chosen, if applicable. (1) A discussion, including a table, that shows the cost per service in terms of both debt service and operation and maintenance costs, of all faciJities (existing and proposed) during the planning period. (m) A statement regarding compliance with any adopted water quality management plan under the Federal Water Pollution Control Act as amended. (n) A statement regarding compliance with the State Environmental Policy Act (SEPA) and the National Environmental Policy Act (NEPA), if applicable. I'i'i'i IiIiIiIiIi ilililili General Sewer Plan Update I I III I Overview IlIlilIll II I I Executive Summary I I I f Introduction (Chapter 1) 111111111 Policies and Standards (Chapter 2) 111111111 Service Area Characteristics (Chapter 3) 11111111' Population (Chapter 4) Existing Sewer Facilities (Chapter 5) ililililI Wastewater Flows (Chapter 6) I 11111111 Sewer System Analysis (Chapter 7) I I I I I I.. ' Capital Facilities Improvements (Chapter 8) Financial Analysis (Chapter 9) Operations and Maintenance (Chapter 10) 11111111 Reclaimed Water (Chapter 11) 111111111 'IllIllI' k �Q I rynr nrl dmonds TiYFaC! �� Sn#horrt�sny�_ [ IMF atf1 V / • Se 5Llgtlarnish % Nn Josewalllpe Stslr park •+ 14rr-WI7d 1l,{x 5�rdla 6alnbrl !elf rgon % Bell M r. Seattle 47 t � S GrkP+ MnuiNeln 5[aw 8remertan 4 ' Faresr n dL � 116L f y r r l L f ril �Llr'Gn ® Ilfl[8ri yhon •N .I Pierce oLioir 3pJl Kent II a. - Frrir..d Mn —rt T�[ortla i O ED C 5 i,;iln iii 10Mile6 ulrrersxyPla[a Wgst"nterTreatment Plants : 1 20 MiIa Ra4ius City of Port Orchard IM County Consul General Scw-r Marl Urba n C rowt h Area L 7 City Boundary fir'}t ARP Vicinity Map General Sewer Plan Update Overview — Introduction (Ch. 1) Table 1-1 I Co piehensive Suer Pion R.ecl ements per WAC 173-240-1150 3a Purpose and need for proposed plan Section 1.2 3b Who OWnsr operatesr and maintains system Section 1.3 air ExisCitrg and proposed servic=e boundaries SeG-tipn S Layout map showing boundaries; existing sewer facilities, proposed 1 3-3 3-5 - , , 3d sewers; topography and elevations; strearns, lakes: and other water 5 -lr and & bodies; water systems 3e Populationrrends Sectiper4 •E iistin$ domestic and/or industrial wastewater fail titles ithin 20 Fi ure 1-1 g miles 3g Infiltrators and inflow problems Section 6.4 3h Treatment systems and adequacy of such treatment Section 5.7 31 Identify industrial wastewater sources 3j Discussion of water systems 3k Discussion of collection alternatives 31 Define construction cast and O&M costs 3m ComplianeE with water quality rrra rragerltthnt plan 3n $EPA Compliance 5ectJort 6.7 Section 3.9 Section 7 5e€tiosn 8 5426M 3.7 Aaaendix A rrr r. Oai.i .wmwi :Sr^fo1Rtr{h;m .i.yprn,inry.inn..l.,.rcrr,rsrrw.IR".MC"Ph.[ trip {,I.nlYarrlrrro.varmv P.Nr. s r,,k rnmmm.rn.m.n rrrnr.m1n r.r4Mrfln�Yh U+ .ohir...S La..d M—AWn,0L LPJ hlJ. J5I W9:w..1d Hirs,..e .. 4irh&..t i -JM:`J O G4id •r I. #}uwn' a1+P gr47 Sfi?, - Ic I.4tpn 11p nPf ✓•K11 r.Yi R nyw—1,CPn.WLrd lhb CrlVUM1! orrhnra ].Nrlrin. Ph lPv ..pin. Y in r-rr Irq I,. ml P0 nee f. r.mpnlr.nel rr d Ir.rr.. ni Ph. rhlrrn.F"_n lnyr.TFrd-Pn. h.np i. heF.u.ln'Jlr IrM 1 (efq+mhnrj '!a hri ?'p-'.rt.r!d 'trillrnlr!w nr P4-owy . 1111}.'KM General Sewer Plan Update Overview — Policies and Standards (Ch. 2) 1. City Goals for Sewer Service 2. Design Standards 3. Construction Standard 4. Pretreatment 5. Developer Sewer System Extensions and Upgrades 6. Grinder Systems 7. Septic to Sewer Conversion G"ieral Sewer Plan Update Overview — Service Area Characteristics (Ch. 3) Fft hways joa nr Rods y$ln ndary oan G.nwt1 Arear€els 'L L4J1/ ... T - /11111 --fir L._; •t� � � I /J -. ......... I- I `fir Iii(' i r � ri'�v. Yr.t �wro�raev�rv�ari xs.t �•_..�..�t'�.¢ _ { }M1 �F • v - ii City of Port Orchsard tills 1f -9- ? - [general Sewer Wan h... I )'. •a Urban Growth Arab G S•000 Feet L .J - ..I .1 .1 1 T: - I 1. Land Use and Zoning 2. Topography 3. Geology 4. Streams and Water Bodies 5. Critical Areas 6. Endangered Species Habitat 7. Puget Sound Water Quality Management Plan 8. Growth Management Act 9. Water Systems General Sewer Plan Update Overview — Population (Ch. 4) 1. Existing Population and Employment 2. Future Population and Employment 3. Projection Summary General Sewer Plan Update Overview — Existing Sewer Facilities (Ch. 5) 1. Existing and Planned Mini - Basins 2. Existing Sewer Piping 3. Existing Lift Stations 4. Lift Station Condition Assessment i'I 1111111 ''''I'll' General Sewer Plan Update Overview — Wastewater Flows (Ch. 6) 2.50 2.00 1. Existing Wastewater Flows ;'I 2. Wastewater Unit Flows 0 1.50 -I 3` • ` LL 3. Infiltration and Inflow i \ ' 1.00 4. Peaking Factors 5. Diurnal Curves 0.50 6. Industrial Connections 0.00 I I I I 7. Projected Wastewater Flows OOP OOP OOP OOP Ope� .OO�� OO�� OO�� OOP Dry Weather Sewer Infiltration/Inflow Infiltration/Inflow (Shifted) iIiIiIiIi -oral Sewer Plan Update ' u I i I i I ! Overview —Conveyance System Analysis (Ch. 7) 1. Sewer Model Update & Calibration 2. Future Sewer System Expansion 3. Modeling Scenarios 4. Hydraulic Modeling Analysis 5. Capital Improvement Plan Model Runs .IiIiIiIi ''''I'll' G"ieral Sewer Plan Update Overview — Conveyance System Analysis (Ch. 7) — Highways — MajorRoads [ } Urban Growth Area L City Boundary Parma E$ ®WWTP • Lift Station N 2044 DefiCrerlcy Sewer Pipe 2044 Dehcie+icy Buildout Dehcrerticy LL • w* J., rIM '77 r -%..', '•+... •..rr rp Ah ,..l -I,.an fl +. w ti wr.YY M S -- • consor ra.,..,-t. sn. • hiefiorin ck Ylkage I Ll f J M C rmlck r Meanows J MCC niiFtk Woods #1 xfik ° �' library ii !1 fir ,, — - P4arI r - EdC}F2 Golder, pond Tramom flare Canyon CU r _______ I McCormick Pokfery ______ 1 & 2 Woods 1 J__J Cedar Heights H irr Icnn Hospital Eldon Trails I r, a) City of Port Orchard General Sewer Plan ! Meadows Seagw�ck Lodes •- +�___ System Deficiencies it Fs' •�`R ■�r�RiaR-if i d •I1.iu: wtrlrrnTI�#�sf ■ ■i 1 G"ieral Sewer Plan Update Overview — Collection Facilities Improvements (Ch. 8) — Highways I� l � # — - Major Rpads J . �' Urban Cirpvnh AreEj1 a r 4 f City Bounda rV :: ' y I I �— Sewer rams i _ I Sewer CIP G 5 a lift Station - 7 -, �1 lift Station CI P ✓` -S• - R;f __ ___ i' . .. !I7 j r'\L-_ 4' JA a n G 51 16-11 I.^' Fs. 7 ll 6 1C 6- B i _ G-9 I Arty*Xwwrr6a.01 ii — — •• K.*4'fiori5-06 ) . li .InuKan :..n .ca ..n.rrcn-� •4ru w yar COflSO • til rt...a •, �nrl i, .Hurt lrr�kt 1 t.cncM City of Port Orchard 0 5=0 Feet H&�P General Sewer Plan Six -Year CIPs I ,} 6 & 20 -Year CIPs Categories: • Replacement • Upgrade • Capacity • O&M • Obsolescence • General • Developer G"ieral Sewer Plan Update Overview — Collection Facilities Improvements (Ch. 8) EFRiIWi!t 5-31Jy '111111fr1q pfIII ir'ir1j !-- " ___ k irr__■■ter .,� --= i ail:,; __ r ___ # 111' ILL-�' : 'I.: �.Is■ ?I_&Is ` �■ it ■ ; � Mme'= I7 [rl l=mar ■II�.� I711�v III - f ■�++++r i I,Iuc��•M• 1LT�, ff.Er++ +1I ' __* 1111411iy�1 y y — -Yusa✓___�— General Sewer Plan Update Overview — Collection Facilities Improvements (Ch. 8) Vii+ �� ,■ ,Iluuuiw iFf �� lJrHFr '!L1 a i1 - __ _ ■7 # aRual �=� s -s ` "Li 1 _ ___ ii SCI. I'IW. i_ll ■ err rein= �� ■ -.. II —pow *R■■P■ ETI�.TSVlSi■JF:1iilITF. iA • p: .- aflRli �L S. Iite, ME .� I1 " I Mill : LIB I !:' ' IY:IINI-�I:IFIIrll mis _ � �Jl� r� IIII� r•� j■ IIIIIIIT ��±rf+Ywur,n•�•-rl�l� ilt �-. ■{ Fly ` ,ry4; ] 'teas yV411Y111�I�.=� �iJ•�11��pli I,iIYY ",�: yY4-�.y5 rnY�111J1re=` 1�■1i5�?:Cll�i� _ �:�.��•-'d'�r _wUI1W11i11F IIZ'� WIFICogp ``h Ui ''; �. mkJ�� =1FJ41R1111111�=' � rllJ h�li. Hfl+� I }�Yi � _' IIYI I� �y,Y 'ilY■14.liwl a�� i�'. IIYrJMllhl�#�{ , � -frr ��.. -••�- ur�� 1� � uuua141 #U��Ya•si s 1 _ _ :� �� _ I!� 7RL HaRI] General Sewer Plan Update Overview — Financial Program (Ch. 9) 1. Financial Background 2. Financial Policies 3. Historical Financial Performance 4. Outstanding Debt 5. Current Rates and Charges 6. Capital Improvement Funding 7. Sewer Collection Facilities Improvement Funding 8. Six -Year Financial Plan 9. Projected Sewer Rates and Customer Bill Impact Table 9-12 1 Sewer System Current and Projected Bi-Monthly Sewer Rates and Customer Bills Effective date Projected Rate Increase Bi-Monthly Rate per Dwelling Bi-Monthly Increase 1 -Jan -25 1 -Jan -26 1 -Jan -27 1 -Jan -28 1 -Jan -29 1 -Jan -30 3.50% 3.50% 3.50% 3.50% 3.50% $163.00 $168.71 $174.61 $150.72 $187.05 $193.59 $5.70 $5.90 $6.11 $6.33 $6.55 Go*-%&*Nera1 Sewer Plan Update Overview — Operations and Maintenance Program (Ch. 10) 1. City Management and Personnel 2. Operations and Maintenance Activities 3. Staffing Needs 4. Recommended O&M Improvements I1kR3+. OREMERTOr,, � �yprr S'aan[ ~x Vf Wernar Rd .•• NPYE. 5hipyl,-I 4�.ti lI V `( �• s1 F, i ) 4 te' r I FORT as I0•F�CHARQ a'E1 `L�_� e twoon 5EMurWI!I GO5r I— r r I 0CHARD }� Il L If R 1II an y jr III rl — fir. J .. yi .4 W Vi oC .'r D 9E I'.liiII n,r RG SE Uull.n,: It,. 1 F D I WFL P W OOD 2 `J00 L, '00 Fe t i J 1° I I ILLJFt rcltap vraterReusc P$cllrty' — wtui Reuso M2ir,S f City of Port Orchard ', UrbanGramthArea consor General Sewer Plan r;,IY 3DUnd3ry I I i HARD Declaimed Water '-...'yJ_StJ i'} ar p tr .-,huul, Ru.ip i'IlI. 5-rir Uir[i '• '. ... .. llIFW--.tk •',+ ' • ,,. i1I Ldr10110-Uqr l,r�5L JV 'WkVr6+.V$FY+5 MADE l 3 51.IMra W.,fii: Im Nnyh IP54® rmI �a .�':,.." .u"wr,IW 7h,t,IxVh:A4rwla'rwti,r„•,rlw"'yll„1. IrewlN „'uar Y'd IIIfMIIRfLi 4r lhv 11116miilll+5tlLLp"ov, 7Fa I"vvo- ��w1 w'I„,• General Sewer Plan Update Overview — Reclaimed Water (Ch. 11) One Mile of Reclaimed Water Distribution Piping Constructed by the City and West Sound Utility District in 2011.