California Regional Water Quality Control Board Los Angeles Region
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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD LOS ANGELES REGION 320 West 4th Street, Suite 200, Los Angeles, California 90013 (213) 576-6600 Fax (213) 576-6640 http://www.waterboards.ca.gov/losangeles/ ORDER R4-2017-0124 NPDES NO. CA0056014 WASTE DISCHARGE REQUIREMENTS FOR THE LAS VIRGENES MUNICIPAL WATER DISTRICT TAPIA WATER RECLAMATION FACILITY The following Discharger is subject to waste discharge requirements (WDRs) set forth in this Order: Table 1. Discharger Information Discharger/Permittee Las Virgenes Municipal Water District (LVMWD, Permittee, or Discharger) Tapia Water Reclamation Facility (Tapia WRF or Facility) and its associated Name of Facility wastewater collection system and outfalls 731 Malibu Canyon Road Facility Address Calabasas, CA 91302 Los Angeles County Table 2. Discharge Location Discharge Effluent Discharge Point Discharge Point Receiving Water Point Description Latitude (North) Longitude (West) Tertiary Treated 001 34.081459o N 118.706471o W Malibu Creek Effluent Tertiary Treated Las Virgenes Creek 002 34.137032o N 118.704796o W Effluent (tributary to Malibu Creek) Tertiary Treated 003 34.078177o N 118.701709o W Malibu Creek Effluent Arroyo Calabasas Creek Tertiary Treated 005 34.150750o N 118.648719o W (tributary to Los Angeles Effluent River) Table 3. Administrative Information This Order was adopted on: June 01, 2017 This Order shall become effective on: August 01, 2017 This Order shall expire on: July 31, 2022 The Discharger shall file a Report of Waste Discharge as an application for reissuance of WDRs in accordance with title 23, California Code of Regulations, 180 days prior to the and an application for reissuance of a National Pollutant Discharge Elimination Order expiration date System (NPDES) permit no later than: The United States Environmental Protection Agency (USEPA) and the California Regional Water Quality Control Board, Los Angeles Region have Major classified this discharge as follows: Adopted 06/01/17 LAS VIRGENES MUNICIPAL WATER DISTRICT ORDER R4-2017-0124 TAPIA WATER RECLAMATION FACILITY NPDES NO. CA0056014 CONTENTS I. Facility Information ........................................................................................................................ 5 II. Findings ........................................................................................................................................ 5 III. Discharge Prohibitions .................................................................................................................. 5 IV. Discharge Prohibition For Malibu Creek ........................................................................................ 6 V. Discharge Prohibition Exemption For Malibu Creek ...................................................................... 7 VI. Effluent Limitations and Discharge Specifications ......................................................................... 8 A. Effluent Limitations – Discharge Point 001, 002, 003, and 005 .............................................. 8 1. Final Effluent Limitations – Discharge Point 001, 002, 003, and 005 .................................. 8 2. Effluent Limitations Applicable to Discharge Points 001, 002, and 003 – Malibu Creek ... 11 3. Effluent Limitations Applicable to Discharge Point 005 – Los Angeles River .................... 13 4. Interim Effluent Limitations .............................................................................................. 15 B. Land Discharge Specifications – Not Applicable .................................................................. 15 C. Recycling Specifications – Not Applicable ............................................................................ 15 VII. Receiving Water Limitations ........................................................................................................ 16 A. Surface Water Limitations .................................................................................................... 16 B. Groundwater Limitations ...................................................................................................... 17 VIII. Provisions ................................................................................................................................... 18 A. Standard Provisions ............................................................................................................. 18 B. Monitoring and Reporting Program (MRP) Requirements .................................................... 20 C. Special Provisions................................................................................................................ 21 1. Reopener Provisions ....................................................................................................... 21 2. Special Studies, Technical Reports and Additional Monitoring Requirements .................. 22 3. Best Management Practices and Pollution Prevention ..................................................... 23 4. Construction, Operation and Maintenance Specifications ................................................ 24 5. Special Provisions for Publicly-Owned Treatment Works (POTWs) ................................. 24 6. Spill Reporting Requirements .......................................................................................... 25 7. Compliance Schedule for Nutrients in Malibu Creek ........................................................ 29 IX. Compliance Determination .......................................................................................................... 31 TABLES Table 1. Discharger Information ............................................................................................................. 1 Table 2. Discharge Location .................................................................................................................. 1 Table 3. Administrative Information ........................................................................................................ 1 Table 4. Final Effluent Limitations Applicable to Discharge Points 001, 002, 003, and 005 .................... 9 Table 5. Final Effluent Limitations Applicable to Discharge Points 001, 002, and 003 .......................... 11 Table 6. Final Effluent Limitations Applicable to Discharge Point 005 .................................................. 13 Table 7. Interim Final Effluent Limitations Applicable to Discharge Points 001, 002, and 003 .............. 15 Table 8. Compliance Schedule and Milestone Dates ........................................................................... 30 ATTACHMENTS Attachment A – Definitions .................................................................................................................. A-1 Attachment B – Las Virgenes-Triunfo Joint Powers Authority Service Area ........................................ B-1 Attachment C – Tapia WRF Flow Schematic ......................................................................................C-1 Attachment D – Standard Provisions ..................................................................................................D-1 Attachment E – Monitoring and Reporting Program ............................................................................ E-1 Attachment F – Fact Sheet ................................................................................................................. F-1 Attachment G – Toxicity Reduction Evaluation (TRE) Work Plan ....................................................... G-1 Attachment H – Pretreatment Reporting Requirements ......................................................................H-1 Attachment I – Biosolids Use And Disposal Requirements .................................................................. I-1 Attachment J – Reporting Requirements For Rain Event Of Less Than 0.4 Inches In 24 Hours ......... J-1 Adopted 06/01/17 3 LAS VIRGENES MUNICIPAL WATER DISTRICT ORDER R4-2017-0124 TAPIA WATER RECLAMATION FACILITY NPDES NO. CA0056014 FIGURES Figure E-1. Tapia WRF Malibu Creek Receiving Water Stations ......................................................... E-7 Figure E-2. Tapia WRF Los Angeles River Receiving Water Stations ................................................. E-8 Figure F-1. Copper Performance Data .............................................................................................. F-60 Adopted 06/01/17 4 LAS VIRGENES MUNICIPAL WATER DISTRICT ORDER R4-2017-0124 TAPIA WATER RECLAMATION FACILITY NPDES NO. CA0056014 I. FACILITY INFORMATION Information describing the Tapia Water Reclamation Facility (Tapia WRF) is summarized in Table 1 and in sections I and II of the Fact Sheet (Attachment F). Section I of the Fact Sheet also includes information regarding the Facility’s permit application. II. FINDINGS The California Regional Water Quality Control Board, Los Angeles Region (Regional Water Board), finds: A. Legal Authorities. This Order serves as waste discharge requirements (WDRs) pursuant to article 4, chapter 4, division 7 of the California Water Code (CWC, commencing with section 13260). This Order is also issued pursuant to section 402 of the federal Clean Water Act (CWA) and implementing regulations adopted by the U.S. EPA and chapter 5.5, division 7 of the CWC (commencing with section 13370). It shall serve as a National Pollutant Discharge Elimination System (NPDES) permit authorizing the Discharger to discharge into waters of the United States at the discharge location described in Table 2 subject to the WDRs in this Order.