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SAN J O A Q U I N Environmental Health Department CrUUN I Y WASTE DISCHARGE/SPILL RESPONSE NOTICE TO ABATE Responsible Party: PACIFIC GAS&ELECTRIC COMPANY Date: May 19, 2018 Business Name: PACIFIC GAS&ELECTRIC COMPANY Record ID#: COKLBGMKR Site Address: 10536 TRINITY PKWY Program Element: 2546 STOCKTON, CA 95218 Release/Spill Response(excluding Joint Team) NATURE OF WASTE DISCHARGE/WASTE RELEASE: Vehicle struck a pad mounted transformer causing the release, material flowed onto asphalt then went into a storm drain that leads to an unknown waterway, RP and FD handled the containment, contractor is performing clean up. OBSERVATIONS: Witnessed the damaged pad mounted transformer behind the Sportsman's Warehouse,with visible mineral oil staining on the concrete pad and surrounding soil. Release was not contained as indicated in the initial report. Dark staining, possibly a mix of oil and mud, observed from the transformer to the first drain, approximately 25 feet north of transformer.According to PSC, clean-up contractor,thousands of gallons of water can be expected to have been released from the fire hydrant struck by the vehicle located about 10 ft. south of the transformer, causing water, and possibly mineral oil, to flow into the first three storm drains north of transformer. Dirt, debris, and possibly mineral oil appeared to be spread across the pavement by the released water. No obvious oil sheen was observed in the manholes inspected throughout the shopping mall parking lot, nor in the wet well adjacent the pump station located in the south-west corner of Michael Faklis Park.A light colored sheen was observed along the north shore of White Slough, behind the pump station where an outlet discharges storm water into the waterway.According to Richard Stifler of City of Stockton MUD,the pump station was running from about 10PM on 5/18 through 3AM on 5/19,which confirms that the mineral oil released was discharged into White Slough waterway. PSC pumped out 160 gals of mineral oil that remained from the 243 gal.transformer, indicating about 83 gals of oil released into storm water system. Remaining mineral oil is to be recycled by PG&E. PSC is beginning clean-up by cleaning the impacted pavement and storm water drains. Once the flow of the oil in the storm water system is determined, PSC is to jet the system, and clean the wet well.The pump station and soil impacted must also be cleaned. PG&E to provide analytical results for the transformer oil sample taken,waste determination prior to waste disposal, and final disposal records to the EHD. VIOLATIONS: • Discharge of any waste, including sewage (CA Health and Safety Code 5411) • Discharge of waste or sewage to water or within 150 ft. of waterway (SJC Ordinance Code Sections 9-1125.3, 9-1125.4) • Improper disposal of a hazardous waste (CA Health and Safety Code 25189.5) • Permitting or Maintaining a Nuisance (SJC Ordinance Code Section 8-5100) Other Violation CORRECTIVE ACTIONS/ORDER: • Investigate and abate contamination under the oversite of the appropriate lead agency. IMMEDIATELY • Submit copies of hazardous waste manifests/disposal records to the EHD. Provide waste determination to EHD, prior to waste disposal. EHD 25-01 Rev.08/17/17 Page 1 of 2 WASTE DISCHARGE/SPILL RESPONSE NOTICE TO ABATE 1868 E. Hazelton Avenue I Stockton, California 95205 1 T 209 468-3420 1 F 209 464-0138 1 www.sjcehd.com