Laserfiche WebLink
as Diesel (TPHD) ; Total Petroleum Hydrocarbons as Gasoline <br /> (TPHG) ; Benzene, Toluene, Ethylbenzene and Xylene (BTEX) ; <br /> Oxygenates and Total Lead, at a California State Certified <br /> Laboratory. <br /> Total lead concentrations were of a value consistent with <br /> background values for the area. <br /> No Benzene, Zylene or Oxygenates were detected. Negligible <br /> concentrations of Total Petroleum Hydrocarbons Extractable as <br /> Diesel and Toluene were observed. <br /> Gasoline concentrations of 12,000 mg/kg and 3,500 mg/kg were <br /> detected at west end of the small UST and the east end of the <br /> large UST respectively. <br /> This situation is ideal for aeration as a remediation operation <br /> under the requirements of the San Joaquin Valley Unified Air <br /> Pollution Control District (SJVUAPCD) Rule 4651. There is plenty <br /> of space, the weather is warm, no precipitation is expected for <br /> several months and the nearest residence is over 1,000 feet from <br /> the aeration area. <br /> PROPOSED WORK <br /> Task 1 <br /> JPCA will prepare a permit and submit it to the San Joaquin <br /> Valley Unified Air Pollution Control District (SJVUAPCD) Rule <br /> 4651, for the aeration of the soil dug from the former UST <br /> excavation. <br /> Task 2 <br /> Soil shall be excavated to a depth of 2 yards from the area that <br /> is shaded in Figure 2. The excavated soil, estimated to be about <br /> 60 to 70 cubic yards will be placed on visqueen for aeration. An <br /> Organic Vapor Meter (OVM) will be utilized to determine the <br /> extent of contamination, <br /> Task 3 <br /> If during excavation, water seeps into the excavation that water <br /> will be pumped in to a vacuum truck and be properly disposed of. < <br /> Task 4 <br /> 'Confirming soil samples [four are anticipated] will be collected <br /> for each 20 cubic yards of soil which are excavated. Soil <br /> samples will be collected in brass liner covered on both ends <br /> 2 <br />