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SAN JOAQUIN COUNTY <br /> zr ,, ENVIRONMENTAL HEALTH DEPARTMENT <br /> h.lot I ;. 600 E Main Street Stockton • CA 95202 <br /> j (209)468-3420• Fax:(209)468-3448• Web:www.sigov.org/ehd <br /> biros% <br /> EMERGENCY RESPONSE INVESTIGATION REPORT:(INCLUDE CHRONOLOGICAL HISTORY.REcoMMENOATIONS,CLEANUP aM FINAL DISPOSITION) <br /> 9/2/2011 11:30am Received report of sulfuric acid spill <br /> 2pm Arrived on site. Confirmed no release outside of the secondary containment. Took photos of red <br /> stain from the polymer(an indicative system for presence of acid) used on the secondary containment of the <br /> Sulfuric Acid tank. Kirk stated about 10 gallons were released when the valve on the catch table under the pump <br /> was left opened the night before. Six bags of soda ash was used to neutralize the acid to pH between 6 to 8 before <br /> it can be put back into the fermentation process line and the tank. Kirk stated they will continue to add water into <br /> the secondary containment. Facility is still pumping the liquid into the process line and finally the fermentation tank <br /> as I left site due to another ER incident. I told Kirk I'll be billing more time than I was on site since I had to complete <br /> the ER Report in the office. <br /> 9/6/2011 Arrived on site and verified all liquid has been removed and placed back into fermentation tank on site. <br /> Kirk stated the amount generated from the clean up was slightly less than 1,000 gallons. Completed Prop 65. <br /> Revised Prop 65 since it was erroneously checked off as unincorporated. <br /> 9/8/2011 Completed ER Report. Field abated. <br /> Rev.08/16/10 Page 3 of 3 ER Record <br />