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FILE COPS San Joaquin County Environmental Health Department DIRECTOR 600 East Main Street Donna Heran, REHS Stockton, California 95202-3029 PROGRAM COORDINATORS Robert McClellon, REHS Jeff Carruesco,REHS, RDI •.. !-� Kase Foley, REHS 9 F O R j Website: www.sjgov.org/ehd y x Phone: (209) 468-3420 Fax: (209)464-0138 NOTICE TO ABATE IMMEDIATELY May 13, 2010 Sent Regular and Certified Mail R. Alex Steele Pacific Gas and Electric Co. 1108 Murphys Grade Rd. Angels Camp, CA 95222 SUBJECT: Transformer Oil Spill at 425 N. Union St.,Stockton CA, (APN 15112003)Complaint ID: C00031980 The San Joaquin County Environmental Health Department(EHD)was notified on May 3,2010 by Guillermo Reyes with the Stockton Fire Department that a transformer oil spill occurred at the above address on May 3, 2010. Ray von Flue of the EHD investigated the spill site on May 4,2010. An electrical transformer located on a pole between the street and the sidewalk over pressurized and released approximately 5 -30 gallons of transformer oil onto the asphalt street,concrete gutter and soil underneath the transformer. Clean up efforts were conducted by PG&E hiring a contractor and excavating approximately six inches of soil and absorbing the oil on the street and gutter. The transformer oil was sampled and determined to be thirty-five parts per million of PCB,per R. Alex Steele. Upon inspecting the site Mr. von Flue noted some oil staining that remained and the concrete gutter was severely cracked with soil being exposed. Confirmation sampling was conducted by P.G. &E. and the soil in the gutter was found to be eight parts per million. Further investigation is needed to confirm that transformer oil was not released to the soil underneath the gutter. Violation: .Since the concentration of PCB transformer oil is greater than the detection limit,work clean up is required. Please be advised that disposal of hazardous waste at an unauthorized point is a violation of Health and Safety Code§25189.5. Corrective Action: As the transformer oil spill was not abated as part of emergency response actions,the EHD is referring the oversight of the investigation and cleanup to the Department of Toxic Substances Control(DTSC)and the Central Valley Regional Water Quality Control Board (CVRWQCB). Please contact Tim Miles of DTSC at(916)255-3710 to determine proper oversight. A"Notification of Hazardous Waste Discharge"report was filed on May 4, 2010 with the DTSC and the CVRWQCB pursuant to Health and Safety Code§25180.7. The site was also placed on the list of hazardous waste contaminated sites in San Joaquin County that is maintained by the EHD.