Best Management Practices for Centralized Waste Treatment (CWT) - PowerPoint PPT Presentation

SCAP Wastewater Pretreatment Committee Meeting Best Management Practices for Centralized Waste Treatment (CWT) Facilities Steve McDonald smcdonald@carollo.com (925) 788-7001 February 2016 sm0216sem.pptx/1

Agenda Ø What are CWT Facilities? Ø Summary of California CWT Facilities Ø City of Oxnard/SCWW Case Study Ø Best Management Practices Ø Recommendations sm0216sem.pptx/2

What are CWT Facilities? sm0216sem.pptx/3

What is a Centralized Waste Treatment Facility (CWT) • Defined in Rule 40 CFR 437 any facility that accepts hazardous or nonhazardous wastes for pretreatment processing before discharge to a Publically Owned Wastewater Treatment (POTW) facility. • Limits Governed By - Federal/State/Local Limits - Required Removal Efficiencies • Specified by EPA • Additional Requirements Set By Permitting Authority on a Case by Case Basis sm0216sem.pptx/4

Centralized Waste Treatment Facility • Four Subcategories - A: Metals - B: Oils - C: Organics - D: Multiple Waste Streams (i.e. combination of the above) sm0216sem.pptx/5

Permitting Agency Rights and Responsibilities Ø The Permitting Agency has the authority and responsibility to approve (i.e. to certify) CWT Subcategory D dischargers as meeting “equivalent treatment”. Ø EPA provides guidance for approval process “Small Entity Compliance Guide, Centralized Waste Treatment (CWT) Effluent Limitations and Guidelines and Pretreatment Standards” sm0216sem.pptx/6

Survey of CWT Facilities in California sm0216sem.pptx/7

Development of CWT Best Management Practices • Carollo Surveyed the following POTW agencies for CWT Subcategory D Dischargers. - City of Oxnard - Los Angeles County Sanitation District (LACSD) - City of San Jose (SJ/SC Water Pollution Control Plant) - City of Los Angeles (City of LA) - Orange County Sanitation District (OCSD) - Silicon Valley Clean Water (SVCW) • Total of 10 operating CWTs surveyed. sm0216sem.pptx/8

SUMMARY OF SURVEY OF CENTRAL WASTE TREATMENT (CWT) FACILITIES IN CALIFORNIA Green Compass Facilities - 40 CFR 437 Subcategory D Dischargers Waste Treated Discharging Effluent Test Before Slug Surcharge Self Monitoring (Categorical POTW or upstream of Permitted Date Permit Expiration Batch Batch Discharge Testing (COD Frequency of Penalty For Independent Flow Meter Independent Wastes) Permitting Agency CWT Facility Name reuse facilities Address Flow (gpd) Issued Date Discharge Discharge Control Plan and TSS) Testing Noncompliance Monitoring Required Flow Metering SCWW (Santa Clara Oxnard Wastewater Wastewater, aka. Treatment Facility Southern California 815 Mission Rock Metals, Oils, (OWTP) Wastewater) Yes Rd. Organics TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD Kern County (Deep Well Injection CVWW (Central Valley 18613 Waterflood Disposal) Wastewater) N.A. Rd. Green Compass Permit Condition Orange County Environmental profiling and sampling Yes and flow Sanitation District Solutions Orange 2840 E Mirolama Metals, Oils, Monthly, quarterly, of incoming generator meter calibration (OCSD) County Avenue Organics semi-annually waste required reports, Yes 40,000 7/5/2014 3/31/2016 Yes Yes Yes Yes Resample Fee No Silicon Valley NCWW (Seaport Clean Water Refining & 679 Seaport Blvd, (SVCW) Environmental) Yes Redwood City No Data 75,000 No Data No Data No Data No Data No Data No Data No Data No Data No Data No Data No Data Other California - 40 CFR 437 Subcategory D Dischargers Yes (2 Yes by the Districts process (split samples may be Evoqua Water 5375 S Boyle Metals, Oils, quarterly, semi- Fine ($25,000 dollars Yes, must follow streams) provided) LACSD 1 Technologies LLC No Avenue, Vernon Organics 32,000 11/6/2014 11/5/2019 Yes No Yes annually a day) District guidelines No 8910 Rochester Yes by the Districts IEUA and LACSD Avenue, Rancho Metals, Oils, (split samples may be Yes, by local (Joint Permit) K-Pure Water Works No Cucamonga Organics 21,600 7/22/2014 10/6/2018 Yes Yes No Yes quarterly Fine provided) agency (IEUA) No Yes by the Districts Yes, must follow (split samples may be District Metals, Oil, provided) guidelines. LACSD Crosby & Overton Inc. No 1630 W 17th Street Organics 50,000 9/12/2011 5/18/2016 Yes Yes No Yes quarterly Fine No Ridgeline Energy 12345 Lakeland Services USA Inc. (No Road, Santa Fe Longer Operating) Springs LACSD N.A. N.A. N.A. N.A. N.A. N.A. N.A. N.A. N.A. N.A. N.A. N.A. N.A. N.A. City of San Jose (SJ/SC Water Yes (2 Monthly, quarterly, Pollution Control 1021 Berryessa Metals, process semi-annually, Plant) Clean Harbors Yes Road Organics 40,000 11/18/2011 11/17/2016 streams) Yes Yes Yes annually Fine QA/QC by request Yes No 615 (no 6/30/2017 Bi-Monthly (Zero City performs quartly Yes, maximum (Renewed Yes Yes Discharge No Administrative monitoring if there is instead of a sm0216sem.pptx/9 limit on Every 3 (Stormwater (Stormwater Certification Complaint (Civil/ a discharge and splits Certified Water Clean Harbors Los 5756 Alba Street, Metals, Oils, dishcarge) Years) Only) Only) Statement) Criminal Only) samples upon request Balance City of LA Angeles, LLC Yes L.A. Organics 9/30/2002 Yes No No 12/31/2014 (Extended Permit Condition into 2015 for Enforcement In- profiling and sampling Yes and flow In-Progress 28465 Old Town Metals, Oils, Monthly, quarterly, Progress with of incoming generator meter calibration Enforcement) OCSD 2 Klean Waters, Inc. Yes Front St., Suite 224 Organics 100,000 6/1/2013 Yes Yes Yes Yes semi-annually potential penalties waste required reports, No

City of Oxnard/SCWW Case Study sm0216sem.pptx/10

Background Oxnard: • 2015 US Census Population ~210,000 • Oxnard Plain has large Agriculture production • Port Hueneme and Naval base operations • Water supplied from local groundwater and imported sources • OWTP discharges to the Ocean • AWPF produces recycled water for potential IPR/DPT sm0216sem.pptx/11

Oxnard Wastewater Treatment Plant • Permitted Capacity 31.7 MGD • Existing Flows 19 MGD • 40 Significant Industrial Dischargers • Port Hueneme and Naval Base sm0216sem.pptx/12

The Potential Impact of Sea Level Rise Drives Consideration of a New Plant Site sm0216sem.pptx/13

Goals and Objectives • Provide compliant, reliable, resilient, and flexible systems that respond to future changes in regulations, policies and nature. • Integrate grey and green infrastructure with an emphasis on energy efficiency , where feasible. • Provide economic and social benefits within the community. • Modify systems to adapt to potential impacts related to climate change . • Achieve economic and environmental sustainability . • Maintain ratepayer affordability . sm0216sem.pptx/14

Master Plan Drivers • Regulatory – meet and/or exceed existing and future regulatory requirements • Repair/Rehabilitate (Condition) – on-going repairs to assure reliable performance, rehabilitation to extend useful life • Growth - phased expansion to provide 5 to 7 years of anticipated connection capacity • Performance – reduction in life-cycle cost, operational improvements for flexibility, reliability • Resource Sustainability – energy initiatives, resource reuse/recovery, sustainable design sm0216sem.pptx/15

Water Utilities Addressed in the IWRMP • Water • Wastewater = Integrated Water Resources • Recycled Water Master Plan (IWRMP) • Storm Water Streets Public Works Administration SCADA sm0216sem.pptx/16

Overall PWIMP Alternative Development Process “Gap” Assess Evaluate Analysis Develop Vision Existing and and Future Alternatives Conditions Recommend Needs sm0216sem.pptx/17

sm0216sem.pptx/18 Site Plan – 2016

sm0216sem.pptx/19 Site Plan - 2040

Increases to the City’s Water Rates have been Driven by Imported Water Costs. Cumulative Water Bill, CPI, and ENR CCI Increases Since 1990 500% Steep rise in rates corresponding to high 400% increases in imported water costs. 300% 200% 100% 0% Typical Monthly Water Bill ENRCCI - 20 City Average CPI LA, OC, Riverside - Utilities • Enhancements to local supply will give the sm0216sem.pptx/20 City greater control over costs and water rates

Water/Recycled Water Facilities through 2040 Add Dedicated IPR Line Complete RW Loop CMWD Pipeline Potable Dist Add SST Potable Well Add 6 ASR Wells Add 6 ASR Wells Expand Desalter, New Concentrate Add 3 ASR Wells, Add 5 Pipeline O-H Pipeline potable wells Extend RW RW Dist Pipeline to Ag sm0216sem.pptx/21 Users DPR Expand AWPF to 25 mgd

Bottom Line: City of Oxnard is Moving from Ocean Discharge to Advanced Water Reuse Ø Irrigation ü Golf Course - April 2015 Ø Indirect Potable Reuse (IPR) ü Direct injection of Recycled Water to Groundwater Aquifer for Storage and Future Recovery ü Construction initiated in 2015 ü Delivery of Recycled Water for Tracer Studies - 2016 ü Delivery of Recycled Water For Storage and Ultimate Recovery - 2016 Ø Direct Potable Reuse ü Pending Agency Acceptance ü Practice Already Conducted in Other States (Texas) sm0216sem.pptx/22

Santa Clara Wastewater (SCWW) Facility sm0216sem.pptx/23