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bp BP West Coast Products LLC <br /> 4519 Grandview Rd. <br /> Blaine,WA 98230 RECEI ' <br /> Phone: (360)371-8111 ,wJ7F°"��• <br /> Fax: (360)371-1684 APR <br /> Email:sarah.samuels@bp.com 17 2013 <br /> ENVIRONMENTAL HEALTF! <br /> PERMIT(SERVICES <br /> April 16, 2013 <br /> Inspector Thuy Tran <br /> San Joaquin County Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> Stockton, CA 95205-6232 <br /> SUBJECT: Underground Storage Tank Program Inspection Report <br /> Facility#06080 <br /> 85 East Louise Avenue <br /> Lathrop, CA 95330 <br /> Dear Ms. Tran, <br /> This letter is in response to the Underground Storage Tank Program Inspection Report dated <br /> February 28, 2013, which was issued to the subject facility; and is a follow-up to my initial <br /> communication on March 28, 2013 with regard to the same (a supplemental copy of which is <br /> attached for your records). Please be advised that the following issue has been addressed: <br /> A liquid, most likely fuel, was found at the diesel STP sump and the 91 fill sump. <br /> In the diesel STP sump, there was liquid at both sides at the bottom of the <br /> saddle totally approximately a quart. In the 91 fill sump, approximately 2 cups of <br /> liquid was found at one end of the saddle where the liquid detection sensor sits. <br /> There was insufficient amount of liquid to trigger liquid detection sensors for <br /> either product. All primary containment must be impervious to the liquid and <br /> vapor of the substance contained. Immediately discontinue use of failed piping <br /> and have a properly licensed, trained, and certified contractor replace or repair <br /> the failed piping under permit and inspection of the EHD. If the failed component <br /> can't be replaced immediately, there is a possibility that the diesel and premium <br /> UST system may be red tagged to prevent fuel inputs. On April 2, 2013, BP repair <br /> and testing vendor Gettler-Ryan replaced the flex hose in the diesel STP. They tested <br /> the primary line at 60 psi for 1 hour. The test passed and the diesel tank was put back <br /> into service. They found no leaks when they checked the 91 fill sump for a brine leak. <br /> A copy of the back-up documentation is attached for your review and records. A copy <br /> of the work permit and Work Acknowledgment Form are attached, along with a signed <br /> Return to Compliance Certification. <br /> Page 1 of 2 <br />