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The following is an itemized list of violations that have not been addressed for METAL FINISHING SOLUTIONS - STOCKTON CA as of April 06, 2026. Open violations from November 04, 2025 inspection OBSERVATION: The hazardous waste treatment tank system secondary containment system is not adequate. During the inspection,the secondary containment for the wastewater treatment area was observed with layers of crystalized and clumped white material, sludge, and wet puddled staining. Multiple sections of ground level piping for the system were observed with a crystalized and caked white substance.Areas of the floor adjacent to and surrounding the bottom rims of multiple tanks were observed to have crystalized and caked layers of a white and yellow substance. The interior walls and top of the secondary containment berm and several components of the sides of components of the treatment system were observed with white staining.The acid drum, caustic drum and mix tanks were observed with dark sludge around their bases and dark splash marks on their walls. Per Allan Rodriguez,Vice President, the facility is in the process of installing epoxy throughout the secondary containment area and they scrape off a small area of debris at a time and dispose of it as hazardous waste. He stated that the plan is to break the installation up into ten areas. See photos IMG_2348 through IMG-2366. Additionally, the October 2025 log includes a comment"10/1/25 lift station pump broke flooding secondary containment by the line". System corrosion/damage and compromised condition of pipes,valves or pumps for the 1 st through the 3rd was noted in the log. Liquid in the secondary containment was noted from the 1 st through the 16th. No explanation of how liquid continued to enter the secondary containment after the other compliance issues were resolved was documented. No follow up corrective action was documented for any of the issues noted in the log. (Continued in overall inspection comments section at the bottom of the report) ❑ This violation was corrected ❑This violation will be corrected by(date): ❑ Supporting documents included Describe actions taken or will be taken to correct violation: OBSERVATION: The HW treatment system for this facility is not being operated properly to meet the requirements of the regulations. During the inspection, layers of debris resulting from spills were observed inside the secondary containment. Daily inspection logs indicate multiple leaks incidents and and liquid observed within the secondary containment.The facility was unable to provide documentation verifying that the issues noted on the inspection logs were corrected or that the material was removed from the secondary containment.This includes: -The daily inspection log for February 2024. On the 1 st and 2nd, the question"Is secondary containment free of waste and liquid?" is marked"No". No comments regarding the source of the liquid or any follow-up action was documented. -The daily inspection log for April 2025. The log includes a note in the comments section that reads"pipe broke waiting on parts". Liquid in the secondary containment, system, system corrosion/damage and compromised pipes, valves or pumps were noted on the checklist on the same days. No corrective action was documented. -The July 2025 daily inspection log. "No"is marked for the question "Is secondary containment free of waste and liquid?"on the 30th and 31 st. No comments regarding the source of the liquid or any follow up action was documented. -The October 2025 log.The log includes a comment"10/1/25 lift station pump broke flooding secondary containment by the line". System corrosion/damage and compromised pipes,valves or pumps were noted on Oct 1 st-3rd. Additionally, liquid in the secondary containment was noted Oct 1 st-16th. No explanation of how liquid continued to enter the secondary containment after the other issues were resolved was documented. No follow up action was documented for any of the issues noted in the log. (Continued in overall inspection comments section at the bottom of the report) Page 4 of 7