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4" ... Public Notice: :.•,.+ Proposed No Further Action Determination Profleet Truck Lube Above Ground Tank Release Cleanup 15453 N Thornton Road, Lodi State of California Edmund G. Brown Jr. The purpose of this notice is to inform you that: Governor 1. On 13 June 2018, a release of unused motor oil from product piping connected to an 8,000 -gallon above ground storage tank (AST) was observed by the owner at the Profleet Truck Lube at 15453 N Thornton Road in Lodi (Site). Approximately 4,000 gallons of motor oil was contained within the secondary containment area surrounding the tanks; however, seepage was observed along the perimeter of the containment wall into the surrounding soil requiring excavation and sampling. California Environmental Protection Agency Matt Rodriquez Secretary of the Environment 2. After observing the release of unused motor, Profleet notified the local fire department, the California Office of Emergency Services, and the San Joaquin County Environmental Health Department on the same day. Profleet engaged Fremouw Environmental Services FES to remove oil within the secondary containment. Approximately 4,000 gallons of oil (FES) rY pp Y was removed, and the secondary containment area was pressure washed with soapy water. The motor oil was transported as "used oil' and the wash water was transported as "oily water" under two separate manifests to off-site disposal facilities. Contact: Water Boards 3. An inspection of the secondary containment wall found that oil had seeped through The report concludes that the residual concentrations detected in the confirmation soil cracks at the base of the wall. Profleet engaged FES to excavate and properly dispose of State Water Resources the impacted soil. On 25 June 2018, the top six inches of soil was excavated from the Control Board outside of the base of the containment wall. Soil samples were collected and submitted for Felicia Marcus, Chair laboratory analysis that found total petroleum hydrocarbons (TPH) as diesel from 7.2 to indicated they are satisfied with the cleanup activities. Based on the relatively low levels of 960 milligrams per kilogram (mg/kg) and TPH as motor oil from 90 to 15,000 mg/kg. Regional Water Quality Control Board, On 3 August 2018, an additional 12 to 18 inches of soil was excavated from the perimeter Central Valley Region of the containment wall and confirmation samples were collected for laboratory analysis. Karl Longley, Chair TPH as diesel was detected at 2.5 to 15 mg/kg, and TPH as motor oil was detected at 45 to contaminated soil has been remediated to the extent practicable and recommends No 275 mg/kg. 4. A 15 August 2018 Above Ground Tank Release report was prepared by Cook Contact: Environmental Service, Inc. documenting the cleanup and requesting No Further Action. The report concludes that the residual concentrations detected in the confirmation soil Bill Brattain samples indicate there is no significant risk to human health or the environment, and (916) 464-4622 requests case closure. Central Valley Water Board staff has discussed the remedial activities and the report with San Joaquin County Environmental Health Department which indicated they are satisfied with the cleanup activities. Based on the relatively low levels of Regional Water Quality motor oil constituents in the confirmation samples, the low mobility of the oil in the Control Board, subsurface, the distance from the residual TPH in the soil to groundwater, and discussions Central Valley Region with San Joaquin County, Central Valley Water Board staff finds that the motor oil - contaminated soil has been remediated to the extent practicable and recommends No Bil oard waterboardais.ca.gov Further Action for the motor oil release cleanup. The Central Valley Water Board is hereby providing notice and an opportunity for the public to comment on the proposal that "No Further Action" is appropriate for the cleanup of the motor oil release cleanup.