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ITEM 1 PowerpointWASTEWATER INFRASTRUCTU1 f IMPLEMENTATION c, "7-- , <=v � j� July 23,d, 2018 — City Council Special Session Presented by: Advanced Engineering and Environmental Services, Inc. (AE2S) OO MPCA Update O✓ REC Update O •Implementation/Funding Considerations O Summary/ Questions 1 0 • Master Plan has been reviewed, but lower MPCA priority because no 2019 construction • Draft funding score was low, as expected — Score = 19/100 — Previous fundable scores in high 30s — MPCA willing to work with City to improve score • Current conditions were updated and re- examined • Divergent data was questioned = deeper look at the data • Discovered a faulty flowmeter — affected East Biosolids • Re -analyzed East Biosolids capacity A 4.0 �U f6 cQa 3.5 U N 3.0 3 LL >� c 2.5 4% L � Q � y to O 2.0 3 = C � C C7 0 1.5 — —Phase 3c Liquids Capacity (AA) m= — —Phase 4a Liquids Capacity (AA) a) 1.0 — o — — Phase 4b Liquids Capacity (AA) c =a a 0.5 a- 0 p 0.0 AVU PDIRIS�r\o �o �QJ t�\v �I)C 0 zt P EAST SOLIDS - "SOLD" RECs Initiation and Operational Triggers - East Solids Phase 1 - "Sold" RECs 9,000 300 RECs/year/WWTF 8,000 7,000 200 RECs/yea r/W WTF 6,000 5,000 RECs ES1(Operational) =3,340 RECs 100 RECs/year/WWTF 4,000 --�—— — — — — —— 3,000 — 2,000 ESI (initiation) 1,000 0 2018 2023 2028 2033 2038 Year 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% East WWTF Capacity Utilization (2018) 6% 14% 2%* 15/ Flow, MGD BOD, PPD TSS, PPD WAS, PPD Biosolids Storage, gpy 0 % Utilized If % Platted 0 % Reserve EM mm 5000 Initiation and Operational Triggers - East Solids Phase I - Sold Plus Platted RECs ESI (Initiation) 2023 '2028 Year RECs Needed 2020 ES1(|nitiation) Initiation and Operational Triggers - West Liquid Phase 1- "Sold" RECs 300 RECs/year/WWTF 8,000 7,000 200 RECs/year/WWTF 6,000 5,000 WU (Operational) RECs = 3,428 RECs 100 RECs/year/WWTF 4,000 3,000 — — — — — — — — — — — — — — — — 2,000 1,000 WL1 (Initiation) 0 2018 2023 2028 2033 2038 Year 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% West WWTF Capacity Utilization (2018) 0 Flow, MGD BOD, PPD TSS, PPD WAS, PPD ■ % Utilized ■ % Platted ■ % Reserve 4% Biosolids Storage, gpy Initiation and Operational Triggers - West Liquid Phase I - Existing Plus Platted RECs 300 RECs/year/WVITF 8,000 7,000 6,000 ................... ..... 200 RECs/year/WWTF 5,000 ... ........................... . .......... WL1 (Operational) = 3,428 RECs RECs 4,000 ............................... ................ ................ ........ ................. ............... 100 RECs/year/WVVTF .... .......... . ... ............. 3,000 .. ........... . ........ .............. 11" . ..... ..................... .......... .......... ........... 7777� - - - - - - 2,000 WU (Initiation) 1,000 0 2018 2023 2028 2033 2038 Year EAST SOLIDS -POTENTIAL SCHEDULES Project Starts 1 1201 Weekend-, Show Weekends; PotentialShow ■ - ■ - for: PotentialSchedule • : • • • --Task._. Task Responsible Start NO of Urt Nov r�-c trb r.ir, nrr wre hon 11 m.g sir pct �•-, Vmr ran teb mm apr a,y �,n I!.I hug 1pp Ta;. Task Rrsponsible Start No of tkl Na. Det Ion reds PAP Apr Mey Jun Jul Aug Sep DU Now Der. Ian reb Mor Apr r.1er Jun Jul Aug Sop Oa row Der ter, reb Mm No Title/13mulption 8eeouree(s} Date Days ® �EMMEMMMMMMMMEM� I IN IMMMIMMIM ==MM mm '® mmmmmEL Weekend-, PotentialShow ■ - ■ - for: 7Days --Task._. Task Responsible Start NO of Urt Nov r�-c trb r.ir, nrr wre hon 11 m.g sir pct �•-, Vmr ran teb mm apr a,y �,n I!.I hug 1pp n -t Ncv Ucc I rch Mar ,t;. kin,Ion 1111 No TiNrlDrsrription Flesoura:[s) Gate Days I IN mmmmmEL E ® mmmmmmmmm mmm mmmmmmmommm CAPITAL PHASING - UPDATED Phase East Solids Phase 1 (ES1) West Liquid Phase 1 (WL1) East Liquids Phase 1 (EL1) Projected Design Initiation Projected Cost (2017 Dollars) Projected Cost* (completion ar Years in parentheses indicated "slow growth" projection of 75 RECs/year/WWTF. Post -Project REC Caoacit% • Sewer Rates (5k Gallons) $80.00 $70.00 $60.00 $50.00 $40.00 $30.00 $20.00 $10.00 PROJECTED MONTHLY RATE 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 *Projection #1 (400 REC) —F Projection #2 (150 REC) • Sewer Debt 5,000,000 4,000,000 3,000,000 2,000,000 1,000,000 ANNUAL DEBT SERVICE 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 --4-- Projection #1 (400 REC) —i—Projection #2 (150 REQ • Cash Reserves (Operating, Capital, Debt) $14,000,000 $12,000,000 $10,000,000 $8,000,000 $6,000,000 $4,000,000 $2,000,000 CASH BALANCES 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 —+— Projection #1 (400 REQ (Projection #2 (150 REC) • 2018 year to date: 38 odor complaints • Biosolids "extra" hauling costs 2015-2016: —'--'$170k • Project Timing — Financial Aspects: — Delay 2020 to 2021 = "$546,264 — Delay 2020 to 2025 = "$2,895,198 — Increasing Project Costs (3% Annually) — Interest Rate Risk (Rising Rate Environment) — Debt Repayment Structure (Laddered) City of Otsego July 23,d,2018 Presented by: Advanced Engineering and Environmental Services, Inc. (AE2S) 0.300 W&III] 111KIII7 0.150 0.100 0.050 Average Daily Flow East WWTF in Million Gallons 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 —+--Average Daily Flow 7 0.350 11AIII7 0.250 0.200 0.150 0.100 CSKII-I Average Daily Flow West WWTF in Million Gallons 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 —4—Average Daily Flow 90 as 70 Ga ILA ar v '- 40 C. 2D 10 Mudge and gicsalids Hauling Truck Trip Requirements 0 5..000 101:000 15,000 2.0,000 25.,000 30,DOQ 35,000 4Q,000 RECS Tr Ea) (Self-+'erii. mj ThiAINVit %ifte Tumle+ jWesr w EA t WVi fvl Se4-11erform (3,i-WGallon 'TrUcl;) Turd (SuumAmeLTh RdLkeoed S(u*e Tt&tslc jWvbt Lu E.isi Mi oTri `,uhmarract 16,l)txr Gallon Tr*uckj IfitimireQ►.p',sad(]2•fY[A mpTruckf Da,r atomxd abgvnd AirmAidc PRELIMINARY EAST SITE PLAN LEGEND Fnt7nl�.-.�snaf LI3U6 TRAN `n1 I:C. T++AIN LI3IJ!]3 PIP= tnl Cls Plfr RFC*e,^..1 F C'IPF -- DUMNO. F -PF (i1 MBR— WEST CONCEPTUAL SITE PLAN WITH CONSOLIDATED SOLIDS u so' o Eoioa