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San Joaquin County Environmental Health Department 1868 East Hazelton Avenue, Stockton, California 95205-6232 Telephone: (209)468-3420 Fax:(209) 468-3433 Web:www.s4gov.org/ehd Large Quantity Hazardous Waste Generator Inspection Report Facility Name: Facility Address: Date: LATHROP WATER TREATMENT FACILITY/ 2112 E Louise Ave, Lathrop May 10, 2016 SUMMARY OF VIOLATIONS (CLASS I,CLASS II,or MINOR-Notice to Comply) Item# Remarks 301 CCR 66265.31 Facility not maintained to minimize the release of a hazardous waste. At time of inspection: -it was seen where the batch tank had overflowed releasing hazardous waste, filter press sludge, to the ground. The hazardous waste appeared to flow North towards a storm drain. As we walked towards the spill area we, Robert Lopez and myself, were told the release was contained to that area and had not impacted the on site storm drain, which leads to the on site retention pond. Upon further investigation it was determined the hazardous waste had made it into the storm drain and into the on site retention pond. According to the contingency plan, "The Lathrop/Manteca Fire District prepared a response plan which considers the chemicals stored on site. The specific chemicals considered are Diesel Fuel, Ferric Chloride, and Chlorine."The Lathrop/Manteca Fire District did not respond to this release. There was no clean-up done for this release because the facility was waiting until the water dried out, making it easier to clean-up. It is not known how much of the hazardous waste was released to the ground, into the storm drain and into the retention pond. -Filter cake, which appeared to have fallen out from the storage bin, was seen on top of the off site storm drain. The filter press sits over the off site storm drain. -Several dark oily stains seen in the dirt and gravel near the heavy equipment storage area towards the back of the property. -One gallon container labeled as Graffiti buster V.O.0 was seen on a shelf severely rusted, actively leaking. Facilities shall be maintained and operated to minimize the possibility of a fire, explosion, or release of hazardous waste to air, soil, or surface water which could threaten human health or the environment. Immediately properly manage the above wastestreams according to Title 22 hazardous waste regulations. Submit a statement and supporting documentation explaining how this waste was managed and how this will be prevented in the future. This is a Class II violation. 401 CCR 66265.171 Failed to store hazardous waste in a container that is in good condition. One gallon container labeled as Graffiti buster V.O.0 was seen on a shelf severely rusted, actively leaking. Hazardous waste shall be stored in a container that are in good condition. Immediately transfer all hazardous wastes into containers that are in good condition or have hazardous wastes properly disposed of by a licensed hazardous waste hauler under a proper manifest. This is a Class II violation. Page 9 of 12