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Home My WebLink AboutPPP 04-21-2021 Strategic Plan Workshop4/21/2021 1 2021 Strategic Plan Workshop April 21, 2021 The Process 2 1 2 4/21/2021 2 Strategic Planning Presenter: John Withers Board Vice Chairman 3 Schedule 4 3 4 4/21/2021 3 5 1. Asset Management 2. Energy Independence 3. Climate and Catastrophic Event Resiliency 4. Water Reuse 5. Chemical Sustainability Previous Policy Topics Presented 6 Asset Management OC San will assess and manage the collection system and treatment plant systems and assets to improve resilience and reliability while lowering lifecycle costs. This will be accomplished through adaptive operations, coordinated maintenance, condition assessment, and planned capital investment. Staff will balance maintenance, refurbishment, and replacement strategies to maximize useful life, system availability and efficiency. 5 6 4/21/2021 4 OC San will strive to be a net energy exporter. Electrical, thermal, and methane gas generation will be maximized. Energy utilization will be minimized using sound engineering and financial principles. Energy Independence 7 8 OC San aims to design, maintain and operate valuable wastewater assets that withstand or adapt to adverse conditions in a reasonable manner that is both cost-effective and sustainable for present and future generations. These adverse conditions include heavy rains, ﬂooding, sea level rise, earthquakes, tsunamis, extreme heat, wildﬁres, and electrical grid interruptions. Climate and Catastrophic Event Resiliency 7 8 4/21/2021 5 Page 9 OC San will seek to beneficially reuse all reclaimable water for potable, industrial, irrigation and environmental uses. Water Reuse OC San has a need to use chemicals in its treatment process to improve plant performance, reduce odor and corrosion potential, and meet its regulatory requirements. These commodity chemicals are provided by outside vendors through the purchasing process. OC San will identify chemicals key to its operation, investigate the market risks for those chemicals and devise strategies to mitigate identified risks to availability and pricing. Chemical Sustainability 10 9 10 4/21/2021 6 Today’s Policy Discussions: 1. Constituents of Emerging Concern 2. Environmental Water Quality and Urban Runoff Diversion 3. Biosolids Management 4. Food Waste Treatment Strategic Planning Development 11 Constituents of Emerging Concern Presented by: Lan Wiborg, Director of Environmental Services 11 12 4/21/2021 7 OC San will partner with industry experts to support the use of sound science to inform policy and regulatory decisions on constituents of emerging concern (CECs) at the federal, state, and regional levels. Staff will obtain and maintain current knowledge on CECs under regulatory consideration, including occurrence, analytical methods, regulations, and treatment to support the OC San’s mission and regulatory compliance. Policy Statement 13 What are CECs? Pollutants that may or may not be subject to regulatory requirements or statues but have the potential to pose significant risk to public health and/or the environment. Some of today’s legacy contaminants were once CECs Constituents (Contaminants) of Emerging Concern 14 13 14 4/21/2021 8 • WWTP – Designed to treat Poo, Pee, Paper (3Ps) • All other contaminants pass through WWTP to GWRS, biosolids, or ocean discharge • Contaminants can be chemical, biological, or physical • Can upset the treatment process at toxic levels • Major challenge to OC San’s “One Water” reuse efforts • Contaminants • Legacy Source Control and Outreach • Emerging (CECs) Unclear sources, toxicity, and persistence Big Problem for WWTP 15 Era Examples of Past and Current CECs Destroyed by WW Tx? 1970s - 1980s Polychlorinated biphenyls (PCBs)No 1990s - 2000s Dimethyldithiocarbamate (DTC) N-Nitrosodimethylamine (NDMA) No 2000s - 2010s 1,4 – dioxane Triclosan No 2010s -Per‐and poly‐fluoroalkyl substances (PFAS)No 2010s -Microplastics No 2020s -6PPD‐quinone No OC San System as CEC Pathway 16 15 16 4/21/2021 9 Impact on “One Water” in OC 17 Blue arrow – not regulated via permitRed arrow – regulated Early Engagement/Outreach Comprehensive Source Surveillance Permits and Enforcement System Resiliency / Staff Expertise “One Water” through Integrated Planning OC San’s CEC Management Framework 18 17 18 4/21/2021 10 • Not 3Ps • GW in Upper Newport Bay • Not destroyed by WW treatment • Technical study • Volume • Concentration • Risk assessment • Beach WQ • Impact to OC San mission and operation •GWRS • Biosolids • Ocean Discharge • Continuous monitoring Case Study Selenium in Upper Newport Bay 19 • Not 3Ps • Residential, CII, and urban runoff • Not destroyed by WW treatment • Technical study • Volume • Concentration • Risk assessment •GWRS • Biosolids • Ocean Discharge • Continuous monitoring Case Study PFAS 20 19 20 4/21/2021 11 Surveillance – Trunk Lines 12 Trunkline Sampling Locations 7 at Plant No. 1 5 at Plant No. 2 21 CEC Policy Statement OC San will partner with industry experts to support the use of sound science to inform policy and regulatory decisions on constituents of emerging concern (CECs) at the federal, state, and regional levels. Staff will obtain and maintain current knowledge on CECs under regulatory consideration, including occurrence, analytical methods, regulations, and treatment to support the OC San’s mission and regulatory compliance. 22 21 22 4/21/2021 12 Initiative:Actively engage water and wastewater stakeholders to stay abreast of the scientific progress and any potential operational and financial impacts of CECs and provide timely briefings to the OC San’s Executive Management Team and Board of Directors to facilitate informed decision making. Initiative: Continue to develop capacity to identify, detect, quantify, and characterize CEC sources throughout the service area and treatment process to promote source reduction, treatment effectiveness, communication of credible risks, and responsible reuse and disposal. Initiatives to Support Policy 23 Initiative:Proactively establish internal expertise and develop laboratory capability to research the potential impact of CECs on beneficial reuse of water and biosolids. Use science-based knowledge to help shape CEC legislation and regulations to protect the public health and environment. Initiative: In the absence of promulgated regulatory limits for specific CECs, OC San will work with regulatory agencies to establish interim source control measures to safeguard its water and biosolids reuse initiatives and ocean discharge against potential adverse impacts. Initiatives to Support Policy 24 23 24 4/21/2021 13 Questions ? 25 Environmental Water Quality and Urban Runoff Diversion Presented by: Lan Wiborg, Director of Environmental Services 25 26 4/21/2021 14 OC San will collaborate with regional stakeholders to accept up to ten (10) million gallons per day of dry weather urban runoff at no cost to the dischargers through its permit-based Dry Weather Urban Runoff Diversion Program. The primary objective of the DWURD Program is to improve water quality in streams, rivers, and beaches in OC San’s service area without adversely impacting the OC San occupational safety, collection and treatment systems, reuse initiatives, or permit compliance. Policy Statement 27 Improve Beach Water Quality – Avoid Closures • Bacterial exceedance • Effectively treated at WWTP • Selenium in upper Newport Bay • Not destroyed by WW Treatment • Technical study • Consultation with regulatory agencies • Mass balance determination impact to biosolids, GWRS, ocean discharge Program Objective 28 27 28 4/21/2021 15 Dry Weather Urban Runoff Sites Discharge to Plant 1 29 Program Success (2019-2020) Some OC San service area beaches made the report card ‘honor roll’ with a rating of 91%of beaches in Orange County received an ‘A’ rating during summer dry weather conditions A+ 30 29 30 4/21/2021 16 OC San Flow Management 31 CEC In Urban Runoff? Destroyed by WW Tx? Polychlorinated biphenyls (PCBs)Yes*No Dimethyldithiocarbamate (DTC) Unlikely No N-Nitrosodimethylamine (NDMA) Unlikely No 1,4 – dioxane Unlikely No Triclosan Unlikely No Per- and poly-fluoroalkyl substances (PFAS)Yes*No Microplastics Yes No 6PPD-quinone Yes No Urban Runoff as Contaminant Pathway *Majority traced to surface runoff from industrial and commercial facilities 32 31 32 4/21/2021 17 Prevent uncontrolled discharge of urban runoff and Premeditated discharge of industrial, commercial, or indoor residential waste to OC San though any urban runoff diversion Keys to Success 33 Impact on “One Water” in OC 34 Blue arrow – not regulated via permit Red arrow – regulated 33 34 4/21/2021 18 Initiative:Safeguard OC San system against uncontrolled and unregulated discharge by supporting responsible industry practices for flow management and urban runoff pollutant reduction at the source. Utilize OC San’s pretreatment expertise to support effective urban runoff best management practices and special purpose discharge requests among OC San’s regional stakeholders Initiatives to Support Policy 35 Initiative:Issue dry weather urban runoff connection permits to accept up to a total of ten million gallons per day of controlled discharge of dry weather urban runoff where existing conveyance capacity exists, and the constituents within the flow will not adversely impact the OC San. Initiative: Support responsible and practicable urban runoff management and reuse legislations and regulations Initiatives to Support Policy 36 35 36 4/21/2021 19 Questions ? 37 Biosolids Management Presented by: Lan Wiborg, Director of Environmental Services 37 38 4/21/2021 20 OC San will remain committed to a sustainable biosolids program and will beneficially reuse biosolids in accordance with Resolution No. OCSD 13-03 and the 2017 Biosolids Master Plan. Policy Statement 39 Biosolids 40 39 40 4/21/2021 21 How Much Biosolids? • 22 Trucks Per Day = 550 Wet tons of Biosolids Per Day • Biosolids Management Budget 2021-2022: $12.4 Million • Start-up of Centrifuge Biosolids Management Savings: Approximately $200,000- $400,000/month (Reduction of Volume)41 Biosolids Program Framework OC San 13-03 Biosolids Policy and 2017 Biosolids Master Plan Beneficial Reuse Diversification 100% Fail Safe Management Capacity Balance Financial, Environmental, and Societal Considerations Source: https://tyboyd.com/ 42 41 42 4/21/2021 22 Current Biosolids Production Emerging Markets Fuel Electricity Biosolids Land Application Agriculture Crops (Animal Feed) Biosolids Compost Horticulture and Gardening Agriculture Crops Class B Biosolids (95 deg. F) 43 Beneficial Reuse AZ Diversification ‐Biosolids Distribution – 550 Wet Tons/Day Plants No. 1 and 2 Kern 17% Compost Liberty Compost Kern San Bernardino 32% Compost Nursery Product 5% Compost IERCA Yuma 39% Land Application Tule Ranch 44 7% Compost Synagro South Kern 43 44 4/21/2021 23 Regulatory Considerations CalRecycle AB 1826 (2014) CARBCARB/CEC SB 1383 (2016) SB 32 (2016)“Organics Market” Biosolids, Foodwaste, Greenwaste, etc. SB 100 (2018) Healthy Soils Initiative 45 46 SB 1383 45 46 4/21/2021 24 In-County Biosolids Utilization Olinda Landfill (Brea)Frank Bowerman (Irvine)Prima Deshecha (San Juan Capistrano) 47 Continuous Improvement 48 47 48 4/21/2021 25 Next-gen Biosolids Production Class A Biosolids (131 deg. F) Horticulture/Gardening Soil Blending Agriculture CropsLand Application 49 Biosolids and “One Water” in OC 50 Blue arrow – not regulated via permit Red arrow – regulated 49 50 4/21/2021 26 Emerging Threats PFAS and Microplastics 51 Biosolids Thermal Conversion Emerging Technology 52 51 52 4/21/2021 27 Sustainable Biosolids Management Diversification Beneficial Reuse System Resiliency/Failsafe Options Balance Financial and Regulatory Risks and Benefits Key: Integrated “One Water” Approach 53 Initiative:Proceed with implementation of new mesophilic and thermophilic biosolids facilities at Plant No. 2 to improve OC San’s operational resiliency against seismic events while enhancing biosolids quality and marketability. Initiative: Staff will continue to explore biosolids thermal conversion technology for energy generation and destruction of persistent contaminants. Initiatives to Support Policy 54 53 54 4/21/2021 28 Initiative:Engage with local, state, and federal agencies to ensure that biosolids will continue to be safely and legally used as a soil amendment. Initiative:Stay abreast of new biosolids management options, technologies, and biosolids recycling and renewable energy partnerships in Southern California, with special emphasis on technologies that address the source control, removal, sequestration, and destruction of contaminants of emerging concern. Initiatives to Support Policy 55 Questions ? 56 55 56 4/21/2021 29 Food Waste Treatment Presented by: Jim Herberg, General Manager The State of California limits the volume of organic waste that may be diverted to landfills. OC San will collaborate with the County of Orange, other local agencies, and waste haulers to find ways to beneficially reuse food waste, a type of organic waste to assist cities in our service area in meeting their diversion requirements while increasing OC San’s energy production. Policy Statement 57 58 4/21/2021 30 • Regulation diverting organics from landfills • Food waste slurry is compatible with existing systems • Existing capacity in digesters, gas treatment, engine-generators, dewatering and truck loading. • Operating for the benefit of the residents within our mission and legal authority Health and Safety Code 4700. Why Accept Food Waste OC San Central Generation System • Steep learning curve to food waste. • Lessons learned in Los Angeles County and East Bay MUD. • Interim Project to learn (10 years) • Permanent facility with new digesters at Plant No. 2 • Risk to existing 600 tons per day of biosolids (this should not be underestimated). • Contamination • Process upsets (2-million-gallon stomachache) Challenges Ahead 59 60 4/21/2021 31 • Biosolids Master Plan Recommendation • Interim Facility • Space & Sequencing Constraints • 15-year life specification • Pre-processed waste only • 5 to 6 trucks per day • 15% more digester gas produced (1MW) Interim Food Waste OC San Central Generation System Located at Plant No. 2 Main Entrance Interim Food Waste Facility 61 62 4/21/2021 32 Costs • $6.3 million project budget • $3.2 million construction cost • $1 million/year higher O&M costsProject Basis Tipping Fee Set at $26/ton •Tipping fee to recover • All operating cost • Capital cost over first ten years of operations •Credit given for the value of digester gas • Gas clean up is costly – offsets value. •Savings pass through to residents, not Haulers •Service area preference, premium for outside Tipping Fee Basis 63 64 4/21/2021 33 Other Agency Review • Los Angeles County Sanitation District • Temporary Receiving $25/ton • Future Permanent Facility $25-40/ton • East Bay Municipal Utility District $50/ton • Central Marin Sanitation District $24/ton • Encina Wastewater Authority $14/ton Tipping Fee Comparison Tentative Schedule Hauler Contracts in Place June 2021 Construction Award June 2021 Construction Complete December 2022 65 66 4/21/2021 34 Exploring Green Waste Staff Explored Accepting Green Waste and Determined It to be Infeasible • Prohibited by current law • Digesters not suited for cellulose material • No space available for handling material Preprocessed food waste slurry takes advantage of existing solids treatment and energy capacity. Initiative:OC San will accept a preprocessed food waste slurry from contracted waste haulers that will be fed to existing anaerobic digesters. OC San will charge a tipping fee to offset its costs for capital construction, operations, handling, maintenance, and biosolids disposal. Initiative: Design, build, and operate a food waste receiving station. Create a specification for food waste slurry and contract with solid waste haulers to receive and process food waste. Initiatives to Support Policy 67 68 4/21/2021 35 Questions ? 70 Next Steps May 26 Strategic Plan Recap presentation June 23 Revised Core Values June 24 EMT Retreat July 28 Risk Register August 25 Levels of Service September 22 Draft Strategic Plan November 17 Final Strategic Plan Adoption 69 70 4/21/2021 36 Rob Thompson Assistant General Manager 714.593.7310 rthompson@ocsd.com Jennifer Cabral Administration Manager 714.593.7581 jcabral@ocsan.gov Questions 71 71