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Complaint Investigation Summary Report #: 5105 <br />COMPLAINT ID: COTR7GWOA Site Location: 2829 W WASHINGTON ST, STOCKTON CA 95203 <br />Received by EE0009863 GARCIA-MEJIA Received Date: 11/8/2022 Complaint Received Via: PHONE <br />Assigned To: EE0009863 GARCIA-MEJIA Assigned Date 11/8/2022 <br />Program/Element Code 2546 - Release/Spill Response (excluding Joint Team) <br />Nature of complaint: <br />OPERATOR WAS LOADING A RAIL CAR AND THE AUTOMATIC LOADING VALVE FAILED TO CLOSE. THIS CAUSED THE CAR TO BE <br />OVERFILLED AND RELEASE SULFURIC ACID INTO A SECONDARY CONTAINMENT AREA. <br />PROPERTY INFORMATION <br />Property Name: SULFURIC: ACID TRADING CO. <br />Site Location 2829 W WASHINGTON ST <br />STOCKTON, CA 95203 <br />Cross Street NAVY DR <br /> <br />District 001 - VILLAPUDUA, MIGUEL <br /> <br />Location Code 01 - STOCKTON <br /> <br />APN 14502013 <br /> <br />Complaint Status: 0( <br /> <br />Date Abated : <br />Abated By: <br />Activity Summary <br />Activity Date Recorded by <br />11/08/2022 Arrived on site and met with Luke Allen, Sulfuric Acid Trading Co, Terminal PRESTO <br />Supervisor. Luke took me to the secondary containment area where the railcar <br />was. Per Luke the concrete has a beige coating that turns bright red when sulfuric <br />acid touches it so they area aware there has been a release. The red color then <br />fades over time. No bright red color was observed during the inspection. The <br />sulfuric acid was diluted with water to neutralize it and then pumped into <br />275-gallon totes. The totes will be discussed with tomorrow if they will haul as <br />waste or as product. Per Luke the released material was 98% sulfuric acid but <br />they also have 93% sulfuric acid and with the amount of water that was diluted to <br />the 98%, they may still be able to use it as 93% sulfuric acid product. The clean <br />sulfuric acid from the railcar was also pumped out into 275-gallon totes. <br />Approximately 6 and 1/2 total 275-gallon totes of water diluted sulfuric acid were <br />generated from the secondary containment and waste water tank that will be <br />determined tomorrow if it will be waste or product. Discussed with Luke their <br />normal procedures of when a release occurs and he said their normal procedure <br />is to wash with water until the viscous soapy like texture of the sulfuric acid is <br />gone. Called lead senior Garrett Backus to see if we need to have them wash the <br />secondary containment to neutral if that is not their normal process. The concrete <br />and the strip drain in the secondary containment showed a pH of 3. Since washing <br />till neutral is not their normal process, did not make them wash until neutral also <br />since the pH of 3 is no longer hazardous. Per Luke every railcar is washed with <br />water to make sure any sulfuric acid on the railcar is gone so this secondary <br />containment area is constantly being washed with water. The sump, that the strip <br />drains flow to, flow to a waste water tank. The sump water showed a pH of 6. The <br />liquid from the waste water tank was pumped out into 275-gallon totes. The liquid <br />in the secondary containment area for the waste water tank also showed a pH of <br />5-6. One 65-gallon drum of used PPE was generated to be stored in their <br />hazardous waste accumulation area to be disposed of at a future date. <br />(5:00pm - 6:30pm) <br />11/08/2022 Reviewed email from assigned inspector discussing release. Made notes to take <br />to clean up verification later. Discussed with lead senior and program coordinator <br />clean up for release. <br />11/08/2022 Texted clean up contractor, Oswald Guzman, Ponder Environmental Supervisor <br />that I am taking over for the rest of the day and will be stopping by to verify clean <br />up and if 5:00pm is still a good time to verify clean up. <br />PRESTO <br />PRESTO <br />5105.rpt Page 1 of 3