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SANsJOAQUIN Environmental Health Department <br /> COUNTY <br /> Underground Storage Tank Program Inspection Report <br /> Facility Name: Facility Address: Date: <br /> NATIONAL PETROLEUM MANTECA 2072 W YOSEMITE AVE, MANTECA September 23, 2025 <br /> SUMMARY OF VIOLATIONS <br /> (CLASS I, CLASS II, or MINOR-Notice to Comply) <br /> Item# Remarks <br /> 9 CA Code of Regulations 2638, 26410), 2715(f) 2030002 - Leak detection equipment tested by qualified service <br /> technician every 12 months (TCR 9d) <br /> OBSERVATION: The racing fuel 100 and 110 tanks annual leak detector testing were last performed on 01/29/2020 and <br /> were due by 09/2021, 09/2022, 09/2023, 09/2024, 09/2025. Testing has not been completed and is 68 months past due. <br /> REGULATION GUIDANCE: These tests are required once every 12 months. <br /> CORRECTIVE ACTION: Immediately schedule these tests and provide 48 hours notification to the EHD. Please be <br /> aware that all EHD staff time associated with a follow up inspection will be billed at our current hourly rate ($179). <br /> This is a Repeat(Class 2)Violation. <br /> 28 CA Code of Regulations 2638(a), 26410) 2030043 - Leak detection equipment properly installed, calibrated, operated, <br /> and maintained (TCR 9d) <br /> OBSERVATION: The racing fuel 100 and 110 tanks annual leak detector testing were last performed on 01/29/2020 and <br /> were due by 09/2021, 09/2022, 09/2023, 09/2024, 09/2025. Testing has not been completed and is 68 months past due. <br /> REGULATION GUIDANCE: All monitoring equipment shall be installed, calibrated, operated, and maintained in <br /> accordance with manufacturer's instructions, and certified for operability, proper operating condition, and proper <br /> calibration. Immediately contact a properly licensed and certified contractor to ensure leak detectors are operating in <br /> accordance with manufacturer's instructions. <br /> CORRECTIVE ACTION: Ensure that all leak detection equipment is properly programmed and maintained at all times. <br /> This is a Repeat(Class 2)Violation. <br /> 45 CA Code of Regulations 2636(f)(2) 2030025- LLD on DW press piping monitors hrly, detects a 3.0 gph leak, and <br /> restricts/shuts off flow(TCR 9d) <br /> OBSERVATION: The VMI line leak detector failed to detect a leak when tested. <br /> REGULATION GUIDANCE: All line leak detectors shall be capable of detecting a 3-gallon per hour leak at 10 psi. <br /> CORRECTIVE ACTION: Corrected on-site. The service technician adjusted the leak detector, retested it, and it passed. <br /> OBSERVATION: The racing fuel 100 and 110 line leak detector has not been tested to ensure its ability to detect a leak. <br /> REGULATION GUIDANCE: All line leak detectors shall be capable of detecting a 3-gallon per hour leak at 10 psi. <br /> CORRECTIVE ACTION: Immediately have a properly licensed, trained, and certified contractor repair or replace the <br /> failed leak detector(LG 113-x listed, if applicable) and obtain a permit within one business day from the EHD, if needed. <br /> If the failed leak detector can't be replaced immediately, there is a possibility that the racing fuel 100 and 110 UST <br /> system may be red tagged to prevent fuel inputs. <br /> This is a Repeat(Class 2)Violation. <br /> EHD-CUPA Inspection Report IS02 Page 5 of 8 FA0004625 PR0231426 4554614 9/23/2025 <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 />