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Environmental Health Department Aboveground Petroleum Storage Act Inspection Report Date: June 04, 2024 Facility Address: 13771 Prescott Rd, Manteca Facility Name: Wilbur-Ellis Company LLC: Manteca SUMMARY OF VIOLATIONS (CLASS I, CLASS II, or MINOR - Notice to Comply) RemarksItem # 607 CFR 112.7(a)(3)(iii) Plan failed to adequately discuss facility drainage or drainage controls. OBSERVATION: The Spill Prevention, Control, and Countermeasure (SPCC) Plan failed to adequately discuss facility drainage or drainage controls -The plan only referred to a WEconnect Spill Remediation program which was not found, as well as citing the wrong reference page number, 4, instead of 3. REGULATION GUIDANCE: address in your Plan: 112.7 (a)(3)(iii) Discharge or drainage controls such as secondary containment around containers and other structures, equipment, and procedures for the control of a discharge. 112.8 (b)(1) Restrain drainage from diked storage areas by valves to prevent a discharge into the drainage system or facility effluent treatment system, except where facility systems are designed to control such discharge. You may empty diked areas by pumps or ejectors; however, you must manually activate these pumps or ejectors and must inspect the condition of the accumulation before starting, to ensure no oil will be discharged. (2) Use valves of manual, open-and-closed design, for the drainage of diked areas. You may not use flapper-type drain valves to drain diked areas. If your facility drainage drains directly into a watercourse and not into an on-site wastewater treatment plant, you must inspect and may drain uncontaminated retained stormwater, as provided in paragraphs (c)(3)(ii), (iii), and (iv) of this section. (3) Design facility drainage systems from undiked areas with a potential for a discharge (such as where piping is located outside containment walls or where tank truck discharges may occur outside the loading area) to flow into ponds, lagoons, or catchment basins designed to retain oil or return it to the facility. You must not locate catchment basins in areas subject to periodic flooding. (4) If facility drainage is not engineered as in paragraph (b)(3) of this section, equip the final discharge of all ditches inside the facility with a diversion system that would, in the event of an uncontrolled discharge, retain oil in the facility. (5) Where drainage waters are treated in more than one treatment unit and such treatment is continuous, and pump transfer is needed, provide two “lift” pumps and permanently install at least one of the pumps. Whatever techniques you use, you must engineer facility drainage systems to prevent a discharge as described in § 112.1(b) in case there is an equipment failure or human error at the facility. CORRECTIVE ACTION: The SPCC Plan shall adequately discuss all required facility drainage or drainage controls. Drainage systems from undiked areas with a potential for discharge shall be designed to flow into ponds, lagoons, or catchment basins designed to retain oil or return it to the facility. If the drainage system is not designed this way, then the final discharge of all ditches in the facility shall be equipped with a diversion system that would retain oil at the facility. Ensure that drainage systems are addressed adequately in the SPCC plan. Submit proof of correction to the EHD. This is a minor violation. FA0010178 PR0515663 SC001 06/04/2024 EHD 28-01 Rev. 12/06/2021 Aboveground Petroleum Storage Act OIRPage 6 of 10 1868 E. Hazelton Avenue | Stockton, California 95205 | T 209 468-3420 | F 209 464-0138 | www.sjgov.org/EHD