Pre-RFP Meeting for Integrated Wastewater Treatment Plant Master Plan (MWWTP Master Plan) Presentation to Interested Parties. September 13, 2018

Transcription

1 Pre-RFP Meeting for Integrated Wastewater Treatment Plant Master Plan (MWWTP Master Plan) Presentation to Interested Parties September 13, 2018

2 Agenda Opening remarks Eileen White, Director of Wastewater Department EBMUD Contract Equity Program (CEP) Contract Equity Office staff Overview about the Integrated MWWTP Master Plan Douglas Higashi, Manager of Wastewater Engineering Division Yun Shang, Senior Civil Engineer Questions and answers 2

3 Key Features of Contract Equity Program 1. Contracting Objectives: Availability Groups Professional Services White Men 25% White Women 6% Ethnic Minorities (Men/Women) 25% 2. Small Business Enterprise (SBE) Component and Local Business Enterprise (LBE) Incentives 3. Good Faith Outreach Efforts 3

4 Overview about the Integrated MWWTP Master Plan EBMUD Wastewater system Master Plan Divers, Goals and Objectives Master Plan Development Next Steps 4

5 Wastewater Infrastructure Assets No. Facilities 29 miles of gravity interceptors 8 miles of force mains 15 Pump Stations 1 Wastewater Treatment Plant (MWWTP) 3 Wet Weather Facilities (WWFs) 5 Overflow structures Project Site: MWWTP 5

6 Simplified MWWTP Treatment Processes Low-strength Trucked Waste Receiving Station 415 MGD* Influent IPS/ Screens Wet Weather Storage Basin Grit Removal Liquid Treatment Process Permitted dry weather flow: 120 MGD Current dry weather flow: ~50 MGD * Max. wet weather capacity Primary Sludge TWAS 320 MGD* Primary Treatment Centrate Wet Weather Bypass 150 MGD* Pureoxygen Secondary Treatment WAS WAS Thickeners Recycled Water Treatment Disinfected Final Effluent To Bay <1 MGD Distribution System (nonpotable) High-strength Trucked Waste Receiving Stations Blend Tanks First Stage Digesters Second Stage Digesters Biosolids Dewatering Biosolids Haul-off Solids Treatment Process 6

7 Virtual Tour to the MWWTP Effluent Pump Station Wet Weather Storage Basin Power Generation Station Recycled Water Facility Primary Sedimentation Tanks Grit Removal Dewatering Influent Pump Station Anaerobic Digesters Secondary Clarifiers High-strength Trucked Waste Receiving Stations Blending Tanks Reactor Basins O2 Plant Admin & Lab Maintenance 7

8 Overview about this Integrated MWWTP Master Plan EBMUD Wastewater system Master Plan Divers, Goals and Objectives Master Plan Development Next Steps 8

9 MWWTP Master Plan Drivers Factors to consider Potential Regulatory Requirements Nutrients reduction Biosolids diversion Air Contaminants of Emerging Concern Infrastructure Renewal Needs Aging facilities, reliability, seismic risk, sea level rise etc. Repair, replace, or upgrade/repurpose? Future Flow and Load Resource Recovery Program needs Population/employment growth Impact of I&I reduction Operational Improvements Dewatering bottleneck Odor control and others

10 Potential Regulatory Requirements 10

11 Partial List of Existing & Emerging Regulatory Requirements 2020: NPDES permit renewal 2029: 4 th nutrient permit 2025: NPDES 2025: 75% diversion of organics from landfill (SB1383) 2024: 3 rd nutrient permit, possible nutrient discharge load cap? 2022: Consent Decree check-in 2020: 50% diversion of organics from landfill (SB1383) 2019: 2 nd nutrient watershed permit 2030: Consent Decree check-in 2030: NPDES 2036: Consent Decree ends 2035: NPDES 2034: 5 th nutrient permit

12 Emerging Concern: SF Bay May be Adversely Impacted by Nutrients Wastewater discharge is the major nutrient source to the Bay EBMUD MWWTP EBMUD accounts for ~19% of the total nutrient discharge from 37 WWTPs combined Of nutrients input are from WWTPs effluent Rest by storm water * Source: San Francisco Estuary Institute (SFEI, 2014) 12

13 MWWTP Nutrient Upgrades Will be Substantial Conceptual study indicates if MWWTP is upgraded to Treat 120 MGD permitted dry weather flow (current ~50 MGD) Build new secondary treatment Build new sidestream treatment Sidestream Treatment Fermenter Aeration Metal Salts MBR (Membrane Bioreactor) External Carbon Source 13

14 Emerging Concern: Phase-out of Biosolids as Landfill ADC ~200 wet tons of biosolids produced daily (~10 trucks/day) No onsite storage capacity at the MWWTP ~$2.5M per year hauling & reuse cost ($3.6M awarded for 2018) Nearly all biosolids go to landfill Alternative Daily Cover (ADC) during the wet weather season currently This option is expected to be completely phased-out by 2025 or sooner SB1383 requires 50% diversion of organics from landfill by % by

15 Aging Infrastructure: MWWTP 1950s: Inf. & Eff. Pump Stations, Sed Tanks 1-10, Digesters s: Digesters 5-8, Dewatering, Admin/Lab Bld, Sed Tanks 11-16, Reactors, Clarifiers, O2 Plant, Aerated Grit, Grit Handling 1980s: Digesters 9-12, PGS 1990s: Maintenance Bld, Hypo Conversion, Wet Weather Storage, Primary Sludge Thickeners 2000 s: R2 SLW Receiving Station, Recycled Water Facility, Vortex Grit Tanks 2010 s: R2 FOG Receiving Station, Blend Tanks, Turbine 15

16 FY18-27 Major CIP Updating for the new budget cycle (FY20-29) EPS: ~$11M for replacement Primary Sed: ~$15M for conc. rehab IPS/Grit: ~$39M for replacement/ screens Dewatering: ~$19M replacements Digesters: ~$27M for Ph3-4, coatings Clarifiers: ~$12M for rehab PGS/Power System: ~$32M Utilities: ~$16M Buildings/Site Imp: ~$22M Reactor Basins: ~$19M to basins concrete, piping and replace Stage 3 aerators 16 16

17 Resource Recovery (R2) TODAY R2 program has brought great benefits to the rate payers and to the environment over the years. Influent Low-strength R2 to Plant Headwork ~80 truckloads/day (~420 kgpd) FUTURE Need to develop future R2 strategies considering the pros and cons for accepting specific R2 material types R2 High-strength R2 for Solids Processing Train ~46 truckloads/day (~240 kgpd) 17

18 Develop Integrated Master Plan for the MWWTP To provide a 30-year roadmap to help determine the projects and funding needed to repair, replace, and/or upgrade the MWWTP s aging infrastructure and to proactively address increasingly more stringent water quality and environmental regulations to protect public health and promote stewardship of San Francisco Bay. Resource Recovery Nutrient Reduction Infrastructure Renewal Power Supply Technology Innovation Site Use Climate Change Adaption Biosolids Management 18

19 MWWTP Master Plan Outcomes Factors to consider Potential Regulatory Requirements Nutrients Biosolids diversion Air Contaminants of Emerging Concern Infrastructure Renewal Needs Aging facilities, reliability, seismic risk, sea level rise etc. Repair, replace, or upgrade/repurpose? Future Flow and Load Resource Recovery Program needs Population/employment growth Impact of I&I reduction Operational Improvements Dewatering bottleneck Odor control Outcomes A roadmap to cost-effectively Provide reliable wastewater services Optimize the use of infrastructures and limited land space Make no-regret infrastructure investment Meet increasingly stringent regulatory requirements Accommodate potential growth Achieve environmental sustainability, such as: Multi-benefits (recycled water) Recovery versus removal GHGs Energy 19

20 Overview about the Integrated MWWTP Master Plan EBMUD Wastewater system Master Plan Divers, Goals and Objectives Master Plan Development Next Steps 20

21 Master Plan will be Developed via Teamed Approach EBMUD Master Plan Organization Chart Principal- in-charge Program Manager Steering Committee EBMUD Consulting Multiple Task Teams 21

22 DRAFT High-level Work Plan We Invite Your Input! Major Tasks to be Primarily Conducted by the DISTRICT staff Summarize Previous and Ongoing Studies Anticipated Issuance of the Notice-to Proceed Major Tasks to be Primarily Conducted by the CONSULTANT (in red) and the DISTRICT staff Project Management Summarize Current and Potential Future Regulations Define Master Plan Goals & Objectives Summarize Existing R2 Project Future R2 Wastes Available Project Flow/Load to the MWWTP Identify Infrastructure Renewal Needs - Perform Systematic Condition Assessment - Complete Seismic Evaluation Study - Conduct preliminary assessment of sea level rise impact Compile Plant Operational Data ( ) Evaluate MWWTP Existing Treatment System Performance Conduct Preliminary Capacity Assessment for the MWWTP Existing Treatment System Provide technical advisory and support to District-lead tasks, review work products Build and Calibrate a Plant Process Model Establish Existing Plant Capacity Develop Basis for Cost Estimation & Alternatives Evaluation Conduct Market Assessment of Recovered Material Develop and Evaluate Nutrient Alternatives Develop and Evaluate Biosolids Alternatives Evaluate R2 Alternatives (w/consultant support) Evaluate Biogas Alternatives (w/consultant support) Evaluate Disinfection Alternatives (w/consultant support) Evaluate all needs together -> Strategize & Prioritize Biosolids Others Nutrients Disinfection Biogas Develop CIP for MWWTP (flexible, phased, incremental and trigger based) Develop Site Plan(s) Estimate Power Demand Develop Power Supply Plan(s) Develop Climate Change Adaption Plan(s) Early

23 Minimal Qualifications Prime Consultant AND Subconsultants 23

24 Typical Evaluation Criteria Understanding of the Project Contract Equity Program Project Implementation and Management Oral Presentation and Interview Relevant Experiences References 24

25 Overview about the Integrated MWWTP Master Plan EBMUD Wastewater system Master Plan Divers, Goals and Objectives Master Plan Work Approach Next steps 25

26 Master Plan RFP Next Steps with Tentative Schedule Pre-RFP Meeting (Sept 2018) Publish RFP (Oct 2018) Proposal Due (6 weeks) Selection & Agreement Negotiation EBMUD Board Approval & Notice to Proceed (Early 2019) Check the following website for to-date information relates to this RFP: 26

27 Be Part of Our Road Map to the Future! Road Map to the Future Additional suggestions may be submitted to Lorrie O Neill, EBMUD Executive Assistant (lorrie.o'neill@ebmud.com), for our consideration. 27

28 Questions and Comments Thank you! Please see EBMUD website for CEP information and upcoming projects: