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A NJ O A Q U l N Environmental Health Department <br /> COUNTY— <br /> Underground Storage Tank Program Inspection Report <br /> Facility Name: Facility Address: Date: <br /> COSTCO WHOLESALE#658 3250 W GRANT LINE RD,TRACY November 08, 2022 <br /> SUMMARY OF VIOLATIONS <br /> (CLASS I,CLASS II,or MINOR-Notice to Comply) <br /> Item# Remarks <br /> 315 HSC 25290.1(e)Failure to maintain interstitial space to detect leaks before release to environment(post-Jul 2004). <br /> OBSERVATION: The 91 tank annular brine sensor was not approved by the EHD prior to receiving fuel. Fuel was <br /> deposited into the 91 tank on 8/29/22,without conducting required testing of the 91 tank annular brine sensor. <br /> Functionality testing was observed on 8/30/22. <br /> REGULATION GUIDANCE: The interstitial space of the UST shall be maintained, as designed, under constant <br /> vacuum or pressure such that a breach in the primary or secondary containment is detected before the hazardous <br /> substance is released into the environment. <br /> CORRECTIVE ACTION: Ensure all operated UST systems have approved smart or brine sensors going forward. <br /> This is a Class II violation. <br /> 316 CCR 2636, 2643(c)(1), 2666(f) Failure to install a line leak detector. <br /> OBSERVATION: The pressurized piping on the 91 tank was not equipped with an automatic line leak detector <br /> approved by the EHD prior to fuel being placed in the 91 tank. Fuel was deposited into the 91 tank on 8/29/22, <br /> without conducting required testing of the automatic line leak detector. Functionality testing was observed on <br /> 8/30/22. <br /> REGULATION GUIDANCE:Automatic line leak detectors are required to be equipped on underground pressurized <br /> piping systems that carry a hazardous substance. <br /> CORRECTIVE ACTION: Ensure all operated UST systems have approved automatic line leak detectors going <br /> forward. <br /> This is a Class I violation. <br /> 318 CCR 2635, 2637.1,2665, 2712 Failed to meet spill container requirements. <br /> OBSERVATION:A spill container was not approved for use by the EHD prior to receiving fuel in the 91 tank. Fuel <br /> was deposited into the 91 tank on 8/29/22,without conducting required testing of the spill container. <br /> REGULATION GUIDANCE: This test is required once every 12 months. <br /> CORRECTIVE ACTION: Ensure all operated UST systems have approved spill containers going forward. <br /> This is a Class 11 violation. <br /> FA0013810 PR0518288 SCO01 11/08/2022 <br /> EHD 23-01 Rev.12/06/2021 Page 6 of 8 Underground Storage Tank Program OIR <br /> 1868 E. Hazelton Avenue I Stockton, California 95205 1 T 209 468-3420 1 F 209 464-0138 1 www.sjgov.org/EHD <br />