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California Environmental Protection Agency <br />Facility: California Tank Lines Inc. <br />Department of Toxic Substances Control <br />Inspection Date: September 29, 2016 <br />During the inspection, I questioned Mr. Bishop on how to check if a trailer has been <br />already washed or not. He explained to me that the cleaning work order that is attached to the <br />trailer, describes internal external washing conditions, as well as the record if it has been <br />washed or not. <br />5ECEI I <br />DEC 0 5 2016 <br />HEALTH <br />ENVIFIONViENTAS <br />OFPPARTMENT <br />. ':Q. <br />Photo 8: A view of cleaning work order. The photograph was taken by Nyein Aung on September 29, <br />2016 <br />When the inspection at the trailer parking area had completed, the inspection <br />proceeded to wash rack area. The facility operates two wash rack stations. The stations are <br />located where chemical trailers are washed out near the maintenance shop. The wash rack <br />consists of hot and cold water tanks and oil water separator, oily water tank where oily portion <br />of the rinse is retained and the sump. DTSC staffs observed liquid on asphalt floor of the wash <br />rack. Mr. Hunt tested the spills with pH paper in 3 different places and all test turned out to be <br />neutral pH, i.e. 7.0. <br />Wastewater collected from the wash rack is transferred to the wastewater treatment <br />system for pH neutralization. The sump and transfer piping is situated underground and could <br />not be inspected completely. DTSC staff observed that the concrete containment around the <br />sump appeared to be corroded and the sump itself was single wall. <br />14 <br />