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SAN JOAQUIN CCUNT Environmental Health Department Permit By Rule Treatment Facility Inspection Report Facility Name: 1 Facility Address: Date: METAL FINISHING SOLUTIONS - STOCKTON 1325 EL PINAL DR, STOCKTON July 20, 2021 SUMMARY OF VIOLATIONS (CLASS I, CLASS II, or MINOR - Notice to Comply) Item # Remarks 203 CCR 67450.3(c)(9)(F) Failed to have a complete new hazardous waste tank system assessment. OBSERVATION: This hazardous waste treatment facility has hazardous waste tanks with incomplete tank assessments. - The PE Certification statement is incomplete. Statement is missing "be" in "...to be the best of..." - Capacity of secondary containment, seismic calculations, wall thickness determination method, tank tightness test results, piping diameter and description of pumps are missing from the tank assessments for the 1500 gallon acid waste tank, 1500 gallon alkaline waste tank, 1000 gallon neutralization tank 1 and 1000 gallon neutralization tank 2. Note: This violation was noted in the 8/31/2020 inspection report and has not been corrected. REGULATION GUIDANCE: Title 22 California Code of Regulations section 66265.192(a) - new tank systems Owners or operators of new tank systems or components shall ensure that the foundation, structural support, seams, connections, and pressure controls (if applicable) are adequately designed and that the tank system has sufficient structural strength, compatibility with the waste(s) to be transferred, stored or treated, and corrosion protection so that it will not collapse, rupture, or fail. The owner or operator shall obtain a written assessment reviewed and certified by an independent, qualified, professional engineer, registered in California in accordance with section 66270.11(d) attesting that the system has sufficient structural integrity, is acceptable for the transferring, storing and treating of hazardous waste, and that the tanks and containment system are suitably designed to achieve the requirements of this article. This assessment shall be obtained prior to placing the tank system in service, and shall be kept on file at the facility. This assessment shall also include, at a minimum, the following information: (1) design standard(s) according to which the tank(s) and ancillary equipment are or will be constructed; (2) hazardous characteristics of the waste(s) to be handled; (3) for new tank systems or components in which the external shell of a metal tank or any external metal component of the tank system is or will be in contact with the soil or with water, a determination by a corrosion expert of: (A) factors affecting the potential for corrosion, including but not limited to: 1. soil moisture content; 2. soil pH; 3. soil sulfides level; 4. soil resistivity; 5. structure to soil potential; 6. influence of nearby underground metal structures (e.g., piping); 7. stray electric current; and, 8. existing corrosion -protection measures (e.g., coating, cathodic protection), and (B) the type and degree of external corrosion protection that are needed to ensure the integrity of the tank system during the use of the tank system or component, consisting of one or more of the following: 1. corrosion -resistant materials of construction such as special alloys or fiberglass -reinforced plastic; 2. corrosion -resistant coating (such as epoxy or fiberglass) with cathodic protection (e.g., impressed current or sacrificial anodes); and 3. electrical isolation devices such as insulating joints and flanges; (4) for underground tank system components that are likely to be affected by vehicular traffic, a determination of design or operational measures that will protect the tank system against potential damage; and (5) design considerations to ensure that: (A) tank foundations will maintain the load of a full tank; (B) tank systems will be anchored to prevent flotation or dislodgement where the tank system is placed in a saturated zone, or is located within a seismic fault zone; and (C) tank systems will withstand the effects of frost heave. FA0024706 PR0543720 SCO01 07/20/2021 EHD 22-04 Rev. 9/16/2020 Page 7 of 11 Permit By Rule Treatment Facility OIR 1868 E. Hazelton Avenue I Stockton, California 95205 1 T 209 468-3420 1 F 209 464-0138 1 www.sjgov.org/EHD