The URL can be used to link to this page

Home My WebLink About05.E. Summary of Capital Improvement PlanITEM E SUMMARY OF CAPITAL IMPROVEMENT PLAN B JEAN -MARC PETIT, DIRECTOR OF ENGINEERING AND TECHNICAL SERVICES DAN FROST, SENIOR ENGINEER, PLANNING ‚44ICHAEL BRI I 1EN, SENIOR VP, CAROLLO ENGINEERS, INC. SUMMER BUNDS, VP, CH2M THE CWMP ADDRESSES FOUR MAJOR CAPITAL IMPROVEMENT DRIVERS Drivers Descriptions 1 Aging Infrastructure Maintain performance and reliability of existing assets to ensure reliable collection and treatment of wastewater 2 Capacity Increase capacity to accommodate planned growth for the communities we serve 3 Regulatory Reliably comply with regulatory requirements that are designed to protect human health and the environment & plan for anticipated future regulatory requirements 4 Sustainability Minimize life -cycle costs, maximize benefits, and achieve economic stability through optimization, resiliency, resource recovery, and energy projects COMPREHENSIVE WASTEWATER MASTER PLAN GOALS AND LOS Levels of Service (LOS) CWMP Goals Strive to meet regulatory requirements 11111 111111 11111111 1 Always work to comply with local. state and federal regulatory requirements. Critical facilities will be on-line within prescribed targets after catastrophic events (e.g., sudden failures. earthquakes, floods. fire. acts of terrorism. Work to improve sanitary sewer overflow (550) occurrence rate of no more than 3.5 550s per 100 miles per year. Be a fiscally sound and effective water sector utility Develop a cost effective program to maximize recycle water in coordination with water agencies. The program must have a benefiticosts ratio of at least one or qreater within 15 years Develop a program that maximizes energy efficiency and self-sufficiencythat has a benefit/costs ratio of at least one or greater within 5 years. Develop long-term resource recovery projects that have a benefit/costs ratio of at least one or greater within 5 years. Provide exceptional customer service 3 Limit Odors to within the fence line of the treatment plantfacility. Provide recycled water (e.g.., fesidentialfill stations and commercial hydrants) aligned with service area customersdemands. Develop a process for assessing customer satisfaction. expectations for District services. and desire for general information. _Develop a public education outreach program that provides.pollution preventidn. education and is aligned with the customer's desire for general information. Projects should reduce adverse impacts on the public andthe environmentthrough sustainable practices that minimize waste. maximize resource recover/. and embrace innovation. Respondto emergency calls in less than 20 minutes during Districtworkinq hours and less than 40 minutes during non -working hours. MASTER PLAN RECOMMENDATIONS FOR CCCSD's TREATMENT PLANT OF THE FUTURE 'FROM JUNE 16, 2016 BOARD WORKSHOP #1 PLANT OF THE FUTURE --- SITE PLAN Future CEC Removal Reverse Osmosis Soles/Wind Energy Replace Recycled . Water Support Systems MBR Effluent Pump Station Refurbish Existing Filter Replace Recycled Water Support Systems Replace Recycled Water Support Systems Drainback Pump Station Raise Flood Protection Levee Solar/Wind Energy Mixed Liquor Splitter Box UV Replacement Blower Building UV Hydraulic Improvements Replace Standby Effluent Pumps PST Improvements Relocate Contaminated Coil to VVWHBA - South - New ,IVN Tanks Blower Building FOG Receiving Station Raw Wastewater Diversion and Drainback Pipe New Anaerobic Digesters Bolds Load Out Facility Replace DAF Support Equipment ----- and Drives. Fluidized Bed IncineratoriORC Solids -- Capacity Study/Scrubber Replacement - Solids Mixing Tank Improvements Influent Gates Rehabilitation Ocree.nings Removal and Switchgear Add Influent Pump and Convert • ------ Motors to Immersible Type ----- Replace Odor Control Facilities Gilt Improvements •,* LEGEND Capacity Regulatory Sustainability Aging Infrastructure DRAFT PLANT OF FUTURE CENTRAL CONTRA COSTA SANITARY DISTRICT COMPRO-1EIVE WA CATER AfASIER PLAN thIMMEM SUMMARY OF MASTER PLAN RECOMMENDATIONS • Key Finding 1: Overall infrastructure in good to fair condition but is aging and requires replacement • Key Finding 2: Re -Consolidate contaminated soil to Basin A South for construction of future liquids and solids facilities • Key Finding 3: Implement wet weather capacity improvements • Key Finding 4: Continue tracking regulatory changes (BAAQMD, BACWA Nutrient Watershed permit, NPDES) • Key Finding 5: Nutrient Removal Include Level 1 Nutrient Removal within next 10 years of CIP. For Level 2/3 Nutrient Removal, use combination of MLE (Modified Ludzack-Ettinger) and MBR (Membrane Bioreactor). Likely later in 20 -yr CIP or beyond. BACWA -.."%•(--- BAY AREA CLEAN WATER AGFNC1ES Pilot innovative nutrient removal and advanced treatment technologies. NUTRIENT LIMITS ASSUMPTIONS BASED ON BACWA NUTRIENT WORK Concentrations, mgIL Assumed Timing Initiate Compliance Ammonia TN P Design Deadline Level 1 Optimizat on 2019-20 2024-26 Level 2 2 15 2027 2037 Level 3 2 6 0.3 2037? 2047? SUMMARY OF MASTER PLAN RECOMMENDATIONS ROADMAP TO ZERO DISCHARGE • Key Finding 5 (Cont'd)j Reaching Zero Discharge For Refinery Recycled Water, use MBR + Reverse Osmosis + Ultraviolet Disinfection for "canal" water quality • Key Finding 6: Need for Developing a Plan for Replacement of Multiple Hearth Furnaces (MHF) Maximize use of existing incinerator facility and building (replace dewatering system, optimize sludge blending, reduce lime usage, seismic improvements) 45 40 35 In 30 25 20 15 ►i 10 5 0 Zero Discharge Lower Walnut Creek? IPR/DPR? Others? +15 MGD Phase 2 Refinery Project 3-5 MGD Phase 1 Refinery Project Projected Title 22 Demands Including Naval Weapons Station "tr-01._ COMPLIANCE ASSURANCE 1 INDUSTRY LEADERS 1 LOCAL COLA ORAi1VE TEAM Central Contra Costa Sanitary District 5a6ds Bending Fatii-Oes +'retnetires t*rw'wr,on end Poen Ooc*.v 56.2016 BLACK&VEATCH ... �., •., . ►earl d ...,. •. •. . SUMMARY OF MASTER PLAN RECOMMENDATIONS • Key Finding 6 (Continued): Need for Developing a Plan for Replacement of Multiple Hearth Furnaces (MHF) Implement air pollution control improvements for incinerator (wet scrubber, scrubber sidestream treatment, other air pollution control) Pilot innovative solids -to -energy technologies (e.g. gasification, hydrothermal liquefaction). Continue to evaluate long-term solids handling options -2-5 years. Plan for 2 Digesters and High Strength Waste Receiving -10 Years Plan for 2 Additional Digesters and 1 Fluidized Bed Incinerator in -20 Years to Replace Existing Multiple Hearth Furnaces SUMMARY OF MASTER PLAN RECOMMENDATIONS • Key Finding 7: Energy Improvements Required on UV Disinfection and Steam Blower Systems • UV Replacement: • Perform Near -Term Electrical Improvements to Address Poor Electrical Connections • Replace System in 5-10 years • Diffuser & Air Piping Replacement: • Replace to Improve Aeration System Efficiencies • Replace Existing Air Piping to address Significant Air Losses • Aeration Blowers & Steam to Electricity: • Replace Steam with Electric Blowers • Convert Heat Recovery to Steam System with Heat Recovery to Electricity System using Organic Rankine Cycle Turbine and Replace Steam -Driven Blowers with Electric Blowers ROADMAP TO NET ZERO ENERGY Key Findings 8: Net Zero Energy Goals Requires Import of Carbon and Alternative Renewable Energy Sources Grid Independence Energy Neutrality, Net Zero Energy No Grid or Imported Natural Gas Energy Efficiency Improvements Imported Wastes Alternative Energy ALTERNATIVE ENERGY FINDINGS • Incineration alone (Base case or S1) will not reach Net Zero Energy • With Anaerobic Digestion S3 or with Anaerobic Digestion followed by Incineration S2, energy efficiency is maximized • With High Strength Waste Co -Digestion (S2 or S3), net zero energy can be achieved for treatment process energy demands • With High Strength Waste Co -Digestion and Solar, net zero energy can be achieved for treatment process energy demands and 5 MGD recycled water wholesale project • Net Zero Energy and Zero Discharge are competing goals BOARD VOTED ON A POLICY ON ENERGY BP. 027 POLICY It is the policy of the District to encourage and promote an energy management approach that will pursue: 1. Cost-effective projects for the District's wastewater treatment plant campus and collection system facilities, and other District -owned buildings and facilities that achieve the following goals: a. Develop a cost-effective energy program for the District's wastewater treatment plant that strives towards Net Zero Energy. b. Identify and implement energy efficiency improvement projects to reduce costs and overall energy usage. c. Increase opportunities that recover renewable energy from wastewater, wastewater solids, and biogas. d. Capture and convert waste heat from treatment processes into energy. e. Import high strength wastes to increase on-site renewable energy generation. f. Increase use of renewable energy, such as solar and/or wind power. g. Improve the District's operational reliability and stabilize operating energy costs. 2. Cost-effective projects for the District's wastewater treatment plant campus that reduce direct and indirect anthropogenic GHG emissions. 3. Active management of GHG emissions to comply with AB32 and other regional, state, and federal GHG requirements. ELECTRIC COMPARISON OF SOLIDS ALTERNATIVES ricity Required By Source (kW) 10,000 9,000 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 PG&E NG o Current et +.4 PG&E PG&E Projected !SOLIDS i Baseline (MHFs) SOLIDS Alt 51 (FB1s) !SOLIDS Alt 52 Alt 53 (AD/FBI) (AD) Aer..EVIL From June 16, 2016 Board workshop#1 ENERGY IMPROVEMENT PROJECTS • Finalize Solar PV Installation at CSO and HHW Facilities • Reduce NG & GHGs with Cogen upgrades (0-2 years) • Reduce furnace fuel usage and Replace older solids equipment with higher efficiency units: Centrifuges and wet scrubbers (0-3 years) • Continue evaluating alternative solids to energy projects: b Current discussions with PHG Energy for 3 MVV P3 Agreement using Gasification & Supplemental Wood Waste (0-3 years) DOE Proposal - Hydrothermal Processing Pilot with WE&RF & Genifuel (0-3 years) • Pilot innovative, low-energy nutrient removal technologies: Current discussions with Nereda for aerobic granular sludge pilot Current discussions with GE for membrane aerated biofilm reactor (MABR) pilot • Replace steam system with ORC and install electric blowers and high efficiency diffusers (3- 6 years) • Replace UV disinfection system (5-10 years) • Start long-range plan to add digestion with high strength waste co -digestion (-10 years) • Replace furnaces with fluidized bed incinerator & reduce LFG, NG & GHGs (15+ years) • Add renewable energy (solar and/or wind) when larger electrical demand is required fr nutrient removal and/or recycled water facilities RECOMMENDED SEWER REHABILITATION & REPLACEMENT PROGRAM FROM OCTOBER 6, 2016 BOARD WORKSHOP #2 100 -YEAR SEWER REHABILITATION & REPLACEMENT FORECAST Period Cost (W) Mileage 80,000,000 70,000,000 60 000 000 td) 50,000,000 L)0 76 40,000,000 ▪ 30,000,000 20,000,000 10,000,000 III I 0-5 Years 5-10 Years 10-20 Years 20-30 Years $180 $441. $724 4.11 I I I I I 8 42 184 281 30-50 Years $1,156 403 50-75 Years $575 206 75-100 Years $808 276 IPlV, 1 ; ,11 n1.,iz1-!144,1a•-21 CO r-1 • 0 en ‘,.0 N ul CO r-4 vzt N. 0 rr, LD Cr) N ul 00 TIP 0 rn cr) (-84 tr) CO - TIt" r-1 N Nm re) rei re) git .7t• Lf) 00 00 00 Ch Cr) CA CA 0 0 0 v-1 ri 0 0 0 0 0 0 0 CD 0 0 0 0 0 0 0 0 • • 0 • 0 0 0 0 0 0 0 CD 0 0 0 NNNNNNN r4 N r4 NNNN rJ NNNN ('N (NI r4NNNNNNN• NNNN Forecast Year SEWER REHABILITATION & REPLACEMENT RATE • Current Rate: -0.3% per year • Strategic Plan: 1% per year Pitartinez CWMP: -0.5 to 2%/year N is Legend Q ("tty Bcrundarlcs Rlnewal Period -- Replace S0 wars CCCSO Service Arab Rr 4�ce OO a Fears Ropier.. 50-75 Years ti0503 501 - - Sepksce 06-10 Years - Repiacs3 75"180 years Maio, highways 1eplace 10-20 years Replace 1CC'Years Repbce 20-30 Veal Elm : D.E..7.1.}ferei. f rid PIPELINE RENEWAL PERIOD • FIGURE 4 'cnt CENTRAL CONTRA EMS.SANRARY DISTRICT C .4700 Cof.1.C7N,FN'SYSTE,N.�ItS:ERwriH Timeframe Miles/Year %/Year 0-5 5-10 10-20 20-30 30-50 50-75 75-100 7.6 8.4 18.4 z8.4 20.2 8.2 11.1 0.5 0.6 1.2 1.9 1.4 0.6 0.7 MODEL RESULTS & RECOMMENDED WET WEATHER CAPACITY IMPROVEMENTS MODEL RESULTS FOR 10 -YEAR, 5 -FT FREEBOARD CRITERIA • --5 miles of improvements required compared to -12 miles in 2010 Capacity Master Plan • Project areas compared to 2010 Capacity Master Plan: Portions of 8 projects still required 4 projects eliminated Several new project areas identified • No dry weather flow capacity deficiencies • No overflows predicted for 20 -Year Event when deficient pipes are corrected • Pump stations have sufficient reliable capacity Legend CCCSD modeled sewers Initially proposed projects PROJECTS NOT INCLUDED IN CIP Projects identified but not included in 20 -year CIP (Referred to as Future Unfunded in this Presentation) • Nutrient Removal BACWA Levels 2/3: Possibly beyond 20 years • Refinery Recycled Water Projects - 20 MGD • Potable Reuse Projects - Additional -10 MGD • Advanced Treatment/Contaminants of Emerging Concern Removal • Renewable Energy Projects • Concord Naval Weapons Station (CNWS) Recycled Water Facilities Improvements • CNWS Collection System Improvements • CNWS Recycled Water Distribution System NEXT STEPS • Draft Master Plan Executive Summary to staff in Decem ger 2016 • Board Workshop #4 on January 26, 2017 • Final Draft Master P an Report & Executive Summary in Apri 2017 PRELIMINARY UPDATED CIP COSTS $140,000,000 $120,000,000 $100,000,000 $80,000,000 $60,000,000 $ 40,000,0 $20,000,000 20 -YEAR CIP FORECAST 0 iJ JI • 1_ 1. 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 Total Spending (not including Future Unfunded) Treatment Plant Co ection System Recycled Water • General Improvements • Future Unfunded $1.8B of improvements identified for 20 -year CIP (Future Unfunded Not Included) (In 2016 $) $140,000,000 $120,000,000 $100,000,000 $80,000,000 $60,000,000 $40,000,000 $20,000,000 so 20 -YEAR CIP FORECAST III Total Spending (not including Future Unfunded) Treatment Plant • Collection System Recycled Water eneral Improvements Future Unfunded Elevated Sewer Re acement Funding 1 1_d 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 $140,000,000 $120,000,000 $100,000,000 $80,000,000 $60,000,000 $40,000,000 $20,000,000 so 20 -YEAR CIP FORECAST Higher CIP Costs Primarily Due to Major Treatment Plant Projects Total Spending (not including Future Unfunded) Treatment Plant 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 Collection System Recycled Water Ill General Improvements ti Future Unfunded PRELIMINARY 1O -YEAR CIP $867M OF IMPROVEMENTS IDENTIFIED Treatment Plant Collection System Recycled Water General Improvements CIP Program Contingency otal CIP (not incl. Future Unfunded) Future Unfunded .1 11.111 $140,000,000 $120,000,000 $100,000,000 $80,000,000 $60,000,000 $40,000,000 $20,000,000 50 (FUTURE UNFUNDED NOT INCLUDED) 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 $18.2 $18.4 551.2 551.3 545.6 $55.4 $44.8 $43.8 $55.0 $64.8 518.4 $17.4 $31.6 536.7 539.1 $36.8 $37.7 541.8 542,0 $45.2 $0.5 $0.4 $1.4 $5.8 $5.8 $0.1 $L6 $9.1 $0.1 $0.1 $4.2 $2.8 $3.2 $1.7 $3.2 54.1 $1.7 $2.7 $1.7 $2.5 51.5 $1.5 $2.0 52.0 $2.0 $2.0 $2.0 $2.0 $2.0 $2.0 $42.7 $40.5 589.4 597.5 595.7 598.4 587.9 599,4 5100.8 5114.5 $6.3 $6.0 $6.0 $36.2 $36.2 $36.2 $0.8 51.4 $6.5 $6.5 (Rounded in $M 2016 Dollars) FT ddll 3 111111 all 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 m Total Spending (not including Future Unfunded) ▪ Treatment Plant ▪ Collection System Recycled Water a General Improvements • Future Unfunded PRELIMINARY 5 -YEAR CIP ($366M) Treatment Plant Collection System Recycled Water General Improvements CIP Program Contingency incl. Future Unfunded) Future Unfunded $140,000,000 $120,000,000 $100,000,000 $80,000,000 $60,000,000 $40,000,000 $20,000,000 so 2018 2019 2020 2021 2022 $18.2 $18.4 $51.2 $51.3 $45.6 $18.4 $17.4 $31.6 $36.7 $39.1 $a5 $a4 $1.4 $5.8 $5.8 $4.2 $2.8 $3.2 $1.7 $3.2 $1.5 $1.5 $2.0 $2.0 $2.0 $42.7 $40.5 $89.4 $97.5 $95.7 $6.3 $6.0 $6.0 $36.2 $36.2 (Rounded in $M 2016 Dollars) Total Spending (not including Future Unfunded) Treatment Plant Collection System Recycled Water • General Improvements Future Unfunded PRELIMINARY 2 -YEAR CIP ($83M) $60,000,000 $50,000,000 $40,000,000 $30,000,000 $20,000,000 $10,000,000 so Treatment Plant Collection System Recycled Water General Improvements CIP Program Contingency Future Unfunded 2018 $18.2 $18.4 $0.5 $4.2 $1.5 $42.7 $6.3 2019 $18.4 $17.4 $0.4. $2.8 $1.5 $40.5 $6.0 Similar to currently approved budget (Rounded in $M 2016 Dollars) Total Spending (Not including Future Unfunded) Treatment Plant Collection System Recycled Water • General improvements Future Unfunded MASTER PLAN IDENTIFIED EARLIER IMPLEMENTATION OF SOME PROJECTS IN FIRST 2 YEARS ($IOOM 2018 2019 • Filter Plant Improvements Treatment Plant $18.2 $18.4 ' (+ $1.3M ) Collection System $21.2 $29.7 • Moraga/Orinda Crossroads Recycled Water $0.8 $1.3 Pump Stations (+$2.3M) General Improvements $4. 2 $2.8 • Fairview/Maltby Pump Stations CIP Program Contingency $1.5 $1.5 (+$12.9M) dotal Spending (Not Including Future Unfunded _ _ $45.9 $53.7 • Increase of $16.5M over next Fultune Unfunded $6.3 $6.0 two years. (Construction projects (Rounded in $M 2016 Dollars) to continue in following FYs) $00,000,000 $50,000,000 $40,000,000 $30,000,000 $20,000,000 $10,000,000 $0 2018 I iii wi I I 2019 ffil Total Spending (not including Future Unfunded) Treatment Plant Collection System Recycled Water s General Improvements Future Unfunded • MAJOR PROJECTS RECOMMENDED IN MASTER PLAN FOR NEXT 2 FISCAL YEARS TREATMENT PLANT • SCREENINGS REMOVAL • PUMP & BLOWER SEISMIC UPGRADE • PIPING RENOVATION PHASE 9 • SOLIDS HANDLING IMPROVEMENTS • HEADWORKS/PREAIR/ PRIMARY GATES AND CONCRETE RENOVATION • UV ELECTRICAL IMPROVEMENTS • ODOR CONTROL REPLACEMENT COLLECTION SYSTEPAt • PLEASANT HILL - PH. 2 SEWER RENOV. • WALNUT CREEK - PH.11 SEWER RENOV. • LAFAYETTE - PH.11 SEWER RENOV. • S. ORINDA - PH.6 SEWER RENOV. • WALNUT CREEK - PH.12 SEWER RENOV. • MARTINEZ - PH.5 SEWER RENOV. • MORAGA/CROSSRDS PUMP STATION (*) • FA1RVIEW/MALTBY PUMP STATION DRY PIT REPLACEMENT (*) RECYCLED WATER • FILTER PLANT (*) GENERAL IMPRQVEMENTS. • ASSET MANAGEMENT • INFORMATION TECHNOLOGY • BUILDINGS • VEHICLES * Projects recommended to start in the two FYs STAFF RECOMMENDATIONS FOR ITEM E • CWMP 10 -Yr CIP: Fund 10 -yr CIP as recommended by CWMP • Includes starting Filter Rehabilitation (design), and Pumping Stations Upgrades (design) in FY17-18