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AUG.3 3°'2016 <br />ENVIRONMENTAL <br />Item 504: CCR 66265.193 Hazardous waste tank system lacks secondary con t' tDEPARTMENT <br />Secondary containment was not provided for the 450 gallon an According Ryan Fane, P.E. <br />this statement was made about the 1,750 gallon tank 'The pit used for secondary <br />containment does not appear to meet the requirements of 22 CCR 66265.193 as it did not <br />appear to be lined and cracks were observed in concrete above the liquid level in the pit at <br />the time of inspection". Secondary containment shall be provided for tank systems to prevent <br />the release of hazardous waste or hazardous constituents to the environment. Secondary <br />containment shall be designed, installed, and operated to prevent any migration of wastes <br />or accumulated liquid out of the system to the soil, ground water, or surface water at any <br />time during the use of the tank system, and capable of detecting and collecting releases and <br />accidental accumulated liquids until the collected material is removed. Immediately provide <br />secondary containment <br />which meets the requirements of Title 22 for the 450 and 1,7508 tanks. <br />This is a Class I violation. <br />Owens' Response/Corrective Action: <br />The facility intends to provide secondary containment for the 1,750 -gallon and <br />450 -gallon waste oil tanks. The facility is evaluating the following options for <br />correcting this item: retrofitting the existing tanks by placing a vessel inside the <br />existing tank to be a new primary (and the existing tank would be the secondary <br />containment), or replacing the tanks with double -walled tanks. <br />Item 505• CCR 66265.194 Failed to maintain tanks for storage of incompatible materials or <br />prevent spills and overfills. <br />Staining was seen on the 4508 tanks and 17508 tanks and in the surrounding areas indicating <br />an overfill or release. Appropriate controls and practices shall be used to prevent spills and <br />overflows from the tank or secondary containment systems. These include at a minimum: <br />- spill prevention controls (e.g.,checkvalves,drydiscount couplings); <br />overfill prevention controls (e.g., level sensing devices, high level alarms, automatic feed <br />cutoff, or bypass to a standby tank); and <br />maintenance of sufficient freeboard in uncovered tanks to prevent overtopping by wave <br />or wind action or by precipitation. Uncovered tanks shall be operated to ensure at least 60 <br />centimeters (2feet) of freeboard, unless the tank is equipped with a containment structure <br />(eg., dike or trench), a drainage control system or a diversion structure (e.g., standby tank) <br />with a capacity that equals or exceeds the volume of the top 60 centimeters (2 feet) of the <br />tank. <br />Immediately implement appropriate controls and practices to prevent spills and overflows <br />from the tank or secondary containment systems. <br />This is a Class Ilviolation. <br />11 <br />