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Response to Comments Table <br /> California Army National Guard <br /> Stockton, California <br /> (Page 6 of 7) <br /> Comment Comment from <br /> Number Central Valley Regional Water Quality Control Board Letter Response <br /> dated March 15, 1999 <br /> 7 We concur with the potential areas of concern identified in Figure 4 Page 7, 8`h bullet. <br /> of the Work Plan (i.e. Boring locations B 14, B 15, B 16 and B 17). Soil and soil gas samples will be collected <br /> However, our inspection of the facility revealed that the current from two locations in the unpaved area. One <br /> storage and handling practices for hazardous waste and hazardous location will be adjacent to the hazardous <br /> materials may have allowed spillage of hazardous materials and/or waste storage area (B22), and the other will be <br /> waste in numerous areas in and around the OMS building (primarily in the truck parking area(B23). One soil and <br /> south of the OMS building). The sampling program should, one soil gas sample from each location will be <br /> therefore be expanded to include additional borings. These brings submitted for laboratory analysis to assess the <br /> should provide investigation around the OMS building, the presence or absence of petroleum hydrocarbons <br /> hazardous materials storage shed, the unpaved area and the fuel truck or VOCs. <br /> storage area (in the unpaved area). <br /> 8 Former Diesel and Gasoline USTs: Inspection of this area revealed Page 8, 2"d bullet. <br /> the location of the USTs and the fuel dispenser area for the USTs. One additional boring has been added to <br /> The investigation of this area should be expanded and include, at address the fuel dispenser area and pump <br /> least one boring in the fuel dispenser area, at least one boring (every island. Additional borings are not warranted at <br /> 20 linear feet) beneath the piping and, at least two borings (one this time because it appears that piping was <br /> boring for each UST) at the locations of the former USTs. minimal (less than 20 feet) and the USTs were <br /> adjacent to each other. <br /> 1527-99/3134-100/AUG 13'99 <br />