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San Joaquin County Environmental Health Department DIRECTOR ` — o Donna Heron,REHS 600 East Main Street y: Stockton, California 95202-3029 PROGRAM COORDINATORS Robert McClellon,RENS Jeff Carruesco,RENS,R01 �q' •.,...•a�P Website: Ww.sjgov.org/ehd KeseyFoley,REHS tv LIFOR Phone: (209)468-3420 Linda Turkalte,REHS Fax: (209)464.0138 NOTICE TO ABATE IMMEDIATELY April 14,2011 Sent Regular and Certified Mail R.Alex Steele Pacific Gas and Electric Co. 1108 Murphys Grade Road Angels Camp,CA 95222 SUBJECT: Pole-Mounted Transformer Oil Spill at 103 N E St., Stockton CA, (APN 15318001) Complaint ID: C00033229 The San Joaquin County Enviromnental Health Department(EHD)was notified on February 22,2011 by Alex Steele with Pacific Gas and Electric that a transformer oil spill occurred at the above address on February 21,2011. One of the two electrical pole-mounted transformers,located between the street and the sidewalk,had over pressurized and released approximately 1-5 gallons of mineral oil onto the surrounding environment.The cast transformer was replaced.Clean up efforts were conducted by the PG&E employee which removed the majority of the transformer oil from the asphalt,sidewalk and soil.The transformer oil was sampled and determined to be approximately 268 part per million of PCB. PG&E hired a clean up contractor PSC to rinse the street,thoroughly cleaned the area,and remove additional contaminated soil on February 22,2011. Sidewalks and asphalt roadway were cleaned with penetone.Approximately 6 drums of contaminated dirt was remove and taken to their consolidation site located on West Lane in Stockton. Thuy Tran of the EHD investigated the spill site and met John Holiday representing PG&E on February 23,2011.Mr.Holiday was onsite to take samples after the clean up bad occurred.Test results found that the highest concentration was 2,9 part per million of PCB which was along the fence line of the vacant lot. Further investigation is needed to confirm the transformer oil was not released to surrounding environment and that clean up is adequate. Violation: As of this date,the PG&E has not taken any corrective actions to investigate the spill from the transformer at the site. 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 E11D 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).