ARCHIVED REPORTS XR0003475 - Laserfiche WebLink

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CAA/IBRIA As part of the spill response, 18,000 gallons of water was pumped out of the Wisconsin Pump Station holding facility and contained in a Baker tank at that location This water was also tested and did not contain any gasoline constituents with the exception of low level toluene We plan to also run this water through our carbon filters and discharge it to the sanitary sewer with approval from the City of Stockton SheIl was also asked by the San Joaquin County Department of Public Works to test the County- owned section of the storm drain between Oxford way and the terminus of the storm drain at the Wisconsin Pump Station This testing involved running clean water through the storm drain from a drop inlet at Bristol Avenue (one block north of Oxford Way) and collecting a sample of this water from a manhole located at the intersection of Michigan Avenue and Wisconsin Avenue The idea of the test was that the clean water would mix with any remnants or residue of the spilled water and be detected in the downstream sample The results of this sample showed that no gasoline constituents were present in the storm drain ADDITIONAL INFORMATION Several water samples were collected from the storm drain to determine the level of gasoline constituents present in the storm drain at different locations The analytical data for these samples is presented on Tables 1 and 2 and a description of the sample locations is given below • A water sample was collected from the Wisconsin Pump Station holding facility on August 5, 2004 • A water sample was collected from the Baker tank that contained approximately 18,000 gallons of water removed from the Wisconsin Pump Station holding facility • After cleaning out the City-owned section of the storm drain, a slug of clean water was run through this section of the storm drain A sample of this water was collected at the downstream end (Oxford Way) of the City-owned section of storm drain • A water sample was collected from the Wisconsin Pump Station holding facility on August 6,2004, after we had pumped 18,000 gallons of water out of the holding facility • The water used to clean the City-owned section of the storm drain was sampled and analyzed • After running a slug of clean water through the County-owned section of the storm drain, a sample of this water was collected • The sediment removed from the City-owned section of the storm drain (generated during cleaning activities) was sampled and analyzed 0783 S