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Home My WebLink About05.c. Review of 2016 Recycled Water Wholesale Opportunities study Page 1 of 9 Item 5.c. CENTRAL SAN March 8, 2021 TO: REAL ESTATE, ENVIRONMENTAL AND PLANNING COMMITTEE FROM: MELODY LABELLA, RESOURCE RECOVERY PROGRAM MANAGER REVIEWED BY: JEAN-MARC PETIT, DIRECTOR OF ENGINEERING AND TECHNICAL SERVICES ROGER S. BAILEY, GENERAL MANAGER SUBJECT: REVIEW OF CENTRAL SAN'S 2016 RECYCLED WATER WHOLESALE OPPORTUNITIES STUDY In response to Chair McGill's request at the February8, 2021, Real Estate, Environmental and Planning (RE EP) Committee meeting, staff is providing this item to review Central San's prior study on Recycled Water Wholesale Opportunities. I n 2015, after completing a competitive consultant selection process, Central San hired RMC Water and Environment (now Woodard and Curran)to complete a study and prepare a report on potential large-scale opportunities for Central San to use its potential supply of recycled water. A presentation summarizing this work was given to Central San's Board on February 18, 2016, and is incorporated into the attached presentation. Staff looks forward to reviewing this presentation at the March 8, 2021, REEP Committee meeting. Strategic Plan Tie-In GOAL TWO: Environmental Stewardship Strategy 3—Support regional development of local water supply ATTACHMENTS: 1. Presentation March 8, 2021 REEP Committee Meeting Agenda Packet- Page 16 of 37 Page 2 of 9 / 1 REVIEW OF CENTRAL SAN'S RECYCLED WATER WHOLESALE OPPORTUNITIES STUDY Melody LaBella, P.E. Resource Recovery Program Manager Real Estate, Environmental & Planning (REEP) Committee Meeting March 8, 2021 2010 , BACKGROUND ON STUDY • RMC Water and Environment (now Woodard and Curran) was hired to complete the study. • The objective was to understand the water market and demand for Central San's potential supply of recycled water. • In 2015, the REEP Committee provided the following guidance on the study: • Favor projects with year-round recycled water demand. • Favor a small number of large projects over a large number of small projects. • The following presentation was provided to the Board in February 2016. ` J2 CENTRALSAN 1 March 8, 2021 REEP Committee Meeting Agenda Packet- Page 17 of 37 Page 3 of 9 i6RMC Central Centra Castes �� Sanitary i7istri[t watnr and envirnnmant Recycled Water Wholesale Opportunities Central Contra Costa Sanitary District Board Meeting February 18, 2016 Complex Challenges I Innovative Solutions Overview of Recycled Water Supply Yield Overview of Regional Water Facilities & Market Assessment Alternatives Evaluation Next Steps 4 2 March 8, 2021 REEP Committee Meeting Agenda Packet- Page 18 of 37 Page 4 of 9 CCCSD Non-potable - • Water Projects-2015 Average Dry Weather Flow: 30.4 mgd In-plant: 1.1 mgd Current Zone 1 (S): 0.5 mgd Zone 1 Future Commitment (S): 0.1 mgd Future Concord Naval Weapons Station (S): 2.5 mgd Pending Shell Refinery (CCWD): 0.5 mgd Potential Available Recycled Water 25.7 mgd (S) = seasonal Overview Map of Potential Opportunities Briones P Reservoir San T` • . ti Los Vaqueros Reservoir Upper San Leandro Reservoir 7 � CCCSD WWTP ,- EBMUD Aqueduct ,� CCWD Canal DSRSD Facilities CVP/SWP �- y n = 6 3 March 8, 2021 REEP Committee Meeting Agenda Packet- Page 19 of 37 Page 5 of 9 Market Assessment . Direct P. CCWD Canal 1Ir EBMUD Mokelumne • EBMUD Mokelumne • Local Golf Courses Aqueduct#1 or#2 Aqueduct#1,2,or 3 • Local refineries EBMUD San Pablo Res. • CCWD Mallard Reservoir • Export to Ag DMC EBMUD Briones Res. Bollman WTP • Export to DERWA EBMUD Upper San • Export to Delta Leandro Res Diablo Lafayette Reservoir + Los Vaqueros Reservoir Wastewater • CCWD Clayton groundwater recharge Send San Ramon DSRSD groundwater Pump Station to recharge DSRSD R 7 Preferred Alternatives • Recycled Water to Refineries • Export Recycled Water to Agriculture • Augment Regional Potable Water Supplies 4 March 8, 2021 REEP Committee Meeting Agenda Packet- Page 20 of 37 Page 6 of 9 • Water to Refineries • Utilizes existing infrastructure • 20 mgd demand Recycled Water to DIVIC Approximately 40 miles to CVP pump facility Could potentially utilize all of CCCSD's effluent }`T io S March 8, 2021 REEP Committee Meeting Agenda Packet- Page 21 of 37 Page 7 of 9 Alt #3 — Augment Regional Water Supplies DSRSD uE; Bay Area Regional Reliability Partners (BARR) CCWD EBMUD � FB VO m'iniLJ �„-.-�.i;,i San Francisco PUC Alameda Co. WD W Santa Clara Valley WD �. . Zone 7 Marin Municipal WD s Bay Area Water Suppliers & Conservation Agencies nFnnA¶F el,.wo (BAWSCA) Alternatives Evaluation Alt I Alt 2 Alt 3a Alt 3b Criteria Refinery Export to Ag IPR through DPR through �• Los Vaqueros Mallard Res. Customer CCWD or CVP Contractor BARR or BARR or BARR or DSRSD DSRSD DSRSD DSRSD Product Water 20 MGD 25.4 MGD 20.3 MGD 20.3 MGD 20.3 MGD Volume Treatment Tertiary w/ Tertiary w/ IPR—FAT DPR—FAT with DPR—FAT with nitrification nit&denit (MF/RO/AOP) additional additional treatment treatment Conveyance Existing 40 mi.42” 31 mi.42" 3 miles of 3 miles of Infrastructure infrastructure pipeline pipeline 42"pipeline 42"pipeline Additional Additional Additional Additional Additional Considerations infrastructure infrastructure infrastructure infrastructure needed to wheel needed to needed to needed to to 3rd parties wheel to 3rd wheel to 3rd wheel to 3rd parties parties parties 6 March 8, 2021 REEP Committee Meeting Agenda Packet- Page 22 of 37 Page 8 of 9 Summary of Estimated Costs Evaluation -Altl 0 Alt 3a Criteria Refinery IPR through ,.. Los Vaqueros Capital Costs $135.3 M $574.9 M $640.3 M $530.2 M $530.2 M %Treatment 80% 24% 51% 80% 80% %Conveyance 20% 76% 49% 20% 20% Annualized Capital $7.3 M $31.1 M $34.6 M $28.7 M $28.7 M Annual O&M $10.9 M $13.7 M $21.3 M $22.2 M $23.0 M Total Annual $18.2 M $44.8 M $55.9 M $50.8 M $51.7 M Yield(AFY) 22,403 28,452 22,761 22,761 22,761 Unit Cost($/AF) $810 $1,600 $2,500 $2,200 $2,300 n 13 Next • • Initiate Discussions to Continue Evaluation ■ DSRSD • Refinery RW exchange with CCWD for raw water • IPR/DPR augmentation through EBMUD ■ San Luis Delta Mendota Water Authority & Reclamation (Agriculture) ■ Regional Reliability Partners • IPR/DPR as a local reliable supply alternative CCWD • Can serve as a partner in all alternatives through exchanges 7 March 8, 2021 REEP Committee Meeting Agenda Packet- Page 23 of 37 Page 9 of 9 QUESTIONS/DISCUSSION CENTRALSAN s March 8, 2021 REEP Committee Meeting Agenda Packet- Page 24 of 37