CENTRAL VALLEY SALINITY ALTERNATIVES FOR LONG-TERM SUSTAINABILITY (CV–SALTS) Strategic Salt Accumulation Land and Transportation Study (SSALTS) Draft Phase 3 Report – Evaluate Potential Salt Disposal Alternatives to Identify Acceptable Alternatives for Implementation October 2016 Prepared for SAN JOAQUIN VALLEY DRAINAGE AUTHORITY Submitted by CDM SMITH Table of Contents 1. Introduction ................................................................................................................ 1-1 1.1 Project Purpose ......................................................................................................................................................... 1-1 1.2 Phase 1 SSALTS Archetype Study Areas ......................................................................................................... 1-2 1.3 Phase 2 – Develop Potential Salt Management Strategies ...................................................................... 1-2 1.4 Phase 3 Scope of Work ........................................................................................................................................... 1-2 1.5 Report Organization ................................................................................................................................................ 1-4 2. Summary of Phase 2 – Develop Potential Salt Management Strategies ......................... 2-1 2.1 Salt Balance ................................................................................................................................................................. 2-1 2.1.1 Conceptual Approach ............................................................................................................................... 2-1 2.1.2 Estimates of Salt Accumulation and Salt Extraction ................................................................... 2-2 2.2 Reduction and Management of Salt Contributions to Groundwater ................................................2-13 2.2.1 Source Control BMPs ..............................................................................................................................2-13 2.2.2 Land Management ...................................................................................................................................2-13 2.3 Treatment Technologies and Potential Marketability ............................................................................2-14 2.4 Salt Accumulation/Management Options ....................................................................................................2-17 2.4.1 San Joaquin River Water Quality Improvement Project ..........................................................2-17 2.4.2 Tulare Lake Bed ........................................................................................................................................2-17 2.5 In-Valley Salt Storage/Disposal Options .......................................................................................................2-20 2.5.1 Deep Well Injection .................................................................................................................................2-20 2.5.2 Supply for Hydraulic Fracturing ........................................................................................................2-21 2.6 Out-of-Valley Disposal Options .........................................................................................................................2-21 2.6.1 San Joaquin River Real-Time Management ...................................................................................2-21 2.6.2 Ocean Disposal ..........................................................................................................................................2-22 2.6.2.1 Discharge through EBMUD ..................................................................................................2-23 2.6.2.2 Other Ocean Disposal Options ............................................................................................2-25 2.7 Brine and Salt Transportation Options .........................................................................................................2-25 2.8 Salt Potentially Managed by Various Disposal Methods ........................................................................2-27 2.9 Salinity Management Alternatives ..................................................................................................................2-28 2.9.1 Alternative 1 ...............................................................................................................................................2-29 2.9.2 Alternative 2 ...............................................................................................................................................2-31 2.9.3 Alternative 3 ...............................................................................................................................................2-31 2.9.4 Alternative 4 ...............................................................................................................................................2-31 2.9.5 Alternative 2/4 ..........................................................................................................................................2-32 2.9.6 Summary of cost for the Salt Management Alternatives .........................................................2-32 3. Planning Level Feasibility Criteria to Evaluate Alternatives ........................................... 3-1 3.1 Feasibility Criteria .................................................................................................................................................... 3-1 3.2 Weights for the Feasibility Criteria ................................................................................................................... 3-2 3.3 Feasibility Analysis of Alternatives and Salt Management and Disposal Options ........................ 3-3 3.3.1 Feasibility Analysis of Salt Mitigation Alternatives ..................................................................... 3-3 3.3.2 Feasibility Analysis of Salt Management and Disposal Options ............................................. 3-5 i Table of Contents • Phase 3 SSALTS Report 4. Salinity Management Program ..................................................................................... 4-1 4.1 Salinity Management Framework ...................................................................................................................... 4-1 4.2 Short-Term Management of Salts in the Central Valley ........................................................................... 4-2 4.3 Long-Term Management of Salts in the Central Valley ............................................................................ 4-5 5. References ................................................................................................................... 5-1 Appendices Appendix A – Summary of Phase 1 Report Appendix B – Salt Management/Disposal Fact Sheets Appendix C – Central Valley Regulated Brine Line Q&A Appendix D – Table 2-4 (11 x 17 page) Appendix E – Response to Comments on the September 2016 version of the Phase 3 SSALTS Report ii Table of Contents • Phase 3 SSALTS Report List of Figures 1-1 SSALTS Phases and Key Tasks ............................................................................................................................ 1-6 2-1 Salt Flux Salt Management Process Flow Diagram .................................................................................... 2-2 2-2 Map Depicting the Initial Analysis Areas (IAZs) in the Central Valley .............................................. 2-4 2-3 High TDS (> 1,000 mg/L) Areas in the Northern Central Valley IAZs .............................................2-10 2-4 High TDS (> 1,000 mg/L) Areas in the Middle Central Valley IAZs ..................................................2-11 2-5 High TDS (> 1,000 mg/L) Areas in the Southern Central Valley IAZs .............................................2-12 List of Tables 1-1 Salt Management Disposal Options Evaluated in Phase 2 SSALTS ..................................................... 1-3 2-1 Annual Salt Loading and Salt Extraction by IAZ.......................................................................................... 2-5 2-2 Annual Salt Loading and Salt Extraction by IAZ – High TDS (> 1,000 mg/L) Areas Only ......... 2-6 2-3 Salt Management by Various Disposal Options ........................................................................................... 2-9 2-4 SSALTS Alternatives and Summary of Costs ............................................................................... Appendix D 3-1 SSALTS Alternatives Evaluation and Scoring ............................................................................................... 3-4 3-2 SSALTS Salt Management and Disposal Options Evaluation and Scoring ....................................... 3-6 4-1 Menu of Key Salt Mitigation Options ............................................................................................................... 4-3 4-2 SSALTS Salt Management and Disposal Options Evaluation and Scoring ....................................... 4-4 4-3 Salinity Management Strategy Phases ............................................................................................................ 4-7 4-4 Phase I – Prioritization and Optimization Study Proposed Tasks ...................................................... 4-8 4-5 Proposed Phase I Prioritization and Optimization Study Schedule .................................................4-12 iii Table of Contents • Phase 3 SSALTS Report List of Acronyms or Abbreviations m S/cm micro Siemens per centimeter BA Assembly Bill ABAG Association of Bay Area Governments AF acre-feet aka also known as BDCP Bay Delta Conservation Plan bgs below ground surface BMPs Best Management Practices BOD biological oxygen demand BPA Basin Plan Amendment CCR California Code of Regulations CEQA California Environmental Quality Act CVHM Central Valley Hydrologic Model CVBL Central Valley Brine Line CVP Central Valley Project CVPIA Central Valley Project Improvement Act Central Valley Water Board Central Valley Regional Water Quality Control Board CV-SALTS Central Valley Salinity Alternatives for Long-Term Sustainability CWA Clean Water Act DAC disadvantaged communities Delta Sacramento-San Joaquin River Delta DIW deep injection well DOGGR California Division of Oil, Gas & Geothermal Resources DWR California Department of Water Resources EBMUD East Bay Municipal Utility District EC Electrical Conductivity EDR Electrodialysis Reversal FEIS Final Environmental Impact Statement FO Forward Osmosis GBP Grassland Bypass Project GDA Grassland Drainage Area gpm gallons per minute GRCD Grasslands Resource Conservation District GSAs Groundwater Sustainability Agencies GSPs Groundwater Sustainability Plans iv Table of Contents • Phase 3 SSALTS Report GWD Grasslands Water District HCC Hilmar Cheese Company HDPE high-density polyethylene HF hydraulic fracturing IAZ Initial Analysis Zone ICM Initial Conceptual Model IEBL Inland Empire Brine Line IFDM Integrated On-Farm Drainage Management IX Ion exchange JPA joint powers authority kg kilogram LSJR Lower San Joaquin River MCL maximum contaminant level MD Membrane Distillation MEB Mid-Evaporation Basins mgd million gallons per day MOU Memorandum of Understanding NCDC National Climatic Data Center NEPA National Environmental Policy Act NM New Melones NOAA National Oceanic and Atmospheric Administration NRW Non-Reclaimable Wastewater OAL Office of Administrative Law O&M operation and maintenance P&O Study Prioritization and Optimization Study Reclamation US Bureau of Reclamation RO Reverse Osmosis RRR Red Rock Ranch RTMP Real-Time Management Program SAMP Surveillance and Monitoring Program SARI Santa Ana Regional Interceptor SAWPA Santa Ana Watershed Project Authority SFEI San Francisco Estuary Institute SGMA Sustainable Groundwater Management Act SJRIP San Joaquin River Water Quality Improvement Project SMA salt management area SNMP Salt and Nitrate Management Plan v Table of Contents • Phase 3 SSALTS Report SSALTS Strategic Salts Accumulation Land and Transportation Study SWP State Water Project State Water Board State Water Resource Control Board TAC Technical Advisory Committee TDS total dissolved solids TLBWSD Tulare Lake Basin Water Storage District TLDD Tulare Lake Drainage District TMDL Total Maximum Daly Load UIC Underground Injection Control USDW underground source of drinking water USEPA US Environmental Protection Agency USGS US Geological Survey WDRs Waste Discharge Requirements WQO Water Quality Objectives WWTP Wastewater Treatment Plant ZDD Zero Discharge Distillation ZLD Zero Liquid Discharge vi Section 1 Introduction 1.1 Project Purpose The purpose of the Strategic Salt Accumulation Land and Transportation Study (SSALTS) is to identify the range of viable Central Valley alternatives for salt disposal to provide input for consideration during development of the Salt and Nitrate Management Plan (SNMP) for the region under the jurisdiction of the Central Valley Regional Water Quality Control Board (Central Valley Water Board). The findings have been used to guide discussions regarding establishment of regional salt management policies and the need for changes to the existing Central Valley Water Board Water Quality Control Plans (Basin Plans) to facilitate salt disposal in a manner that is most beneficial to the region and consistent with the State Water Resources Control Board’s (State Water Board) Recycled Water Policy. This work is being conducted under the direction of the Central Valley Salinity Alternatives for Long-Term Sustainability (CV-SALTS) initiative, which is developing the SNMP for the Central Valley. The SSALTS project has been conducted in three phases (Figure 1-1): (cid:1) Phase 1: Identify and Characterize Existing Salt Accumulation Study Areas – The selection of representative study areas served as archetype situational examples to facilitate discussions regarding salt accumulation and disposal in the Central Valley. Each of these study areas was characterized to establish baseline information that was subsequently used to support development of salt disposal alternatives in Phases 2 and 3. (cid:1) Phase 2: Develop Potential Salt Management Strategies – Phase 2 of SSALTS developed potential long-term salt disposal alternatives in three parts: (1) in-valley alternatives; (2) out-of-valley alternatives; and (3) hybrid alternatives that combined in-valley and out-of- valley salt disposal options. (cid:1) Phase 3: Evaluate Potential Salt Disposal Alternatives to Identify Acceptable Alternatives for Implementation – Alternatives developed under Phase 2 were evaluated in this report using selected feasibility criteria (e.g., regulatory, institutional, economic, technological, etc.). The outcome of this evaluation was the identification and prioritization of acceptable salt disposal alternatives for potential incorporation into Central Valley SNMP as salt management implementation measures. The Phase 1 and Phase 2 SSALTS final reports were submitted to the CV-SALTS Executive Committee in December 2013 and September 2014, respectively (CDM Smith 2013; CDM Smith 2014). The Phase 3 SSALTS draft report was submitted to the CV-SALTS Executive Committee in March 2015. Comments were received and incorporated into the Phase 3 SSALTS draft report. The Executive Committee recommended postponing the finalization of the Phase 3 SSALTS report until a draft of the Nitrate Implementation Measures Study (NIMS) report was completed, so that salt and nitrate implementation measures and mitigation strategies could be coordinated. While based on the March 2015 Phase 3 SSALTS draft report – and thus including the changes based on 1-1 Section 1 • Introduction the original comments, the September 2016 Phase 3 SSALTS draft report had major changes in terms of content and structure. The September 2016 Phase 3 SSALTS draft report was sent to the Project Committee on September 20, 2016 and comments were received on October 5, 2016. The second set of comments were addressed and incorporated into this October 2016 Phase 3 SSALTS final report. Appendix E. provides the comments and responses on the September 2016 Phase 3 SSALTS draft report. The Phase 3 SSALTS report provides a path forward, based on the foundation of Phases 1 and 2 and CV-SALTS Executive Committee discussions. 1.2 Phase 1 SSALTS Archetype Study Areas The Phase 1 work revolved around the concept of an archetype study area, whereby a study area represents a geographic or situational example that can be used as a basis to develop salt management alternatives for the Central Valley. The Phase 1 activities included three key steps: (1) selection of representative study areas consistent with the goals of SSALTS; (2) characterization of the selected study areas; and (3) evaluation of the potential for long-term sustainable salt management given the characteristics of the study area. The 10 archetype study areas reviewed in the Phase 1 SSALTS study are: (cid:1) City of Dixon (cid:1) City of Tracy (cid:1) Grassland Water District – Real Time Management (cid:1) Hilmar Cheese Company (cid:1) Industrial Food Processing (cid:1) Red Rock Ranch (cid:1) San Luis Unit Ocean Disposal (cid:1) Stevinson Water District (cid:1) Tulare Lake Bed (cid:1) Westside Regional Drainage Plan A summary of the Phase 1 analyses of the archetype study areas, along with each study area’s ranking, is provided in Appendix A. 1.3 Phase 2 – Develop Potential Salt Management Strategies Phase 2 focused on the development of potential salt management strategies to mitigate the salt accumulation in the Central Valley. Under Phase 2, alternatives that support these potential strategies for salt disposal were identified and characterized, through a review of literature and reports and information obtained from regional experts. Table 1-1 summarizes the salt management and disposal options evaluated in Phase 2 of SSALTS. 1-2
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