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EHD 23-01 Rev. 09/22/16 Page 3 of 4 FA0017737 PR0526212 SC001 03/20/2018 Underground Storage Tank Program OIR San Joaquin County Environmental Health Department 1868 East Hazelton Avenue, Stockton, California 95205-6232 Telephone: (209) 468-3420 Fax: (209) 468-3433 Web: www.si4ov.org/ehd Underground Storage Tank Program Inspection Report Facility Name: CHEVRON STATION #307709* Facility Address: 10858 TRINITY PKWY, STOCKTON Date: March 20, 2018 UST System Observations 320 CCR 2635(b)(2) Overfill prevention system not present or failed to meet overfill requirements ❑ V ❑ R ❑ COS 321 CCR 2635(b)(2) Overfill prevention was overridden ❑ V ❑ R ❑ COS 322 HSC 25281.6(a) Unburied below grade emergency generator system failed to meet exemption status ❑ V ❑ R ❑ COS 323 HSC 25283.5(a) Unburied below grade UST system failed to meet exemption status ❑ V ❑ R ❑ COS 324 CCR 2717.1(g) Tampered with red tag u V ❑ R ❑ COS 325 CCR 2717.1(f) Deposited petroleum into a red tagged UST ❑ V ❑ R ❑ COS 326 HSC 25299(a)(9) Tampered with or disabled leak detection devices or alarms u V u R ❑ COS 327 CCR 2631.1 UST system not compatible with the substance stored ❑ V o R ❑ COS 328 HSC 25298 Failed to comply with temporary closure requirements ❑ V ❑ R ❑ COS 329 HSC 25298 Failed to comply with all permanent closure requirements ❑ V ❑ R ❑ COS 330 CCR 2636(f)(6) Failure to meet all requirements in lieu of a line leak detector for emergency generator tank system ❑ V ❑ R ❑ COS 331 CCR 2630(d) Secondarily contained piping not maintained to allow liquid to drain into sump ❑ V ❑ R ❑ COS 332 CCR 2631(b), 2631(d) Primary and/or secondary containment not constructed in accordance with the established standards ❑ V ❑ R ❑ COS Single -Walled Non -Pressurized Piping 401 CCR 2636(a)(3) Suction piping not properly sloped or incorrectly located check valve u V ❑ R ❑ COS 402 CCR 2643(d) Daily monitoring of suction pipe (pre -Jan 1984) not performed ❑ V ❑ R ❑ COS 403 CCR 2643(d) Triennial 0.1 gph line test for conventional suction piping not performed (pre -January 1984) u V ❑ R ❑ COS 404 CCR 2643(e) Biennial 0.1 gph test for gravity piping not performed (pre -January 1984) 1 ❑ V ❑ R ❑ COS Other Violations 2010 See below Unlisted General violation V R COS SUMMARY OF VIOLATIONS (CLASS I, CLASS II, or MINOR - Notice to Comply) Item # Remarks 304 HSC 25290.1(d) Monitoring system not maintained to detect entry into secondary containment (after Jul 2004). The S1 87 product STP sensor, S2 87 vent fill sensor and S4 91 product STP sensor failed to get a high liquid alarm when tested. The technician on site cleaned out debris from the S1 and S2 sensor and replaced the high liquid float for the S4 sensor "like for like." The continuous monitoring system shall be maintained to detect the entry of the liquid or vapor phase of the hazardous substance stored in the primary containment into the secondary containment and to detect water intrusion into the secondary containment. The sensors were retested during the inspection. All passed. This was corrected on site. This is a minor violation. EHD 23-01 Rev. 09/22/16 Page 3 of 4 FA0017737 PR0526212 SC001 03/20/2018 Underground Storage Tank Program OIR