Laserfiche WebLink
PRELIMINARY IIYDRQQEOLO IC AS E i a W RK PLA <br /> »� MOORE PETROLEUM, INC. <br /> 1399 E. YOSEMITE AVENUE <br /> MANTECA, CALIFORNIA <br /> DELTA PROJECT NO. 40-88-480 <br /> 1.0 INTROp TIQN <br /> Delta Environmental Consultan',s,Inc.(Delta)has prepared this work plan describing previous work <br /> as well as the proposed hydrogeologic assessment to be performed at 1399 E. Yosemite Avenue in <br /> Manteca, California, (site), Section 34, TIS, R7E, MDSM (Figure 1). This site assessment is in <br /> response to the reported detection of petroleum hydrocarbons in the soils adjacent to the <br /> underground storage tanks at the site. <br /> It 1 Pur DbSe <br /> The Phase I Site HydrogeoIogic Assessment will be undertaken to determine the fallowing: <br /> o Evaluate the site hydrogeologic characteristics. <br /> o Evaluate the horizontal and vertical extent of petroleum hydrocarbons in the soil. <br /> a Determine if ground water at the site contains any dissolved petroleum hydrocarbons. <br /> -� U Determine the depth to ground water and the direction of ground water flow <br /> underlying the site. <br /> '-' <br /> o Determine the location of nearby waken-supply wells. <br /> a Evaluate the need for additional assessment or remedial activities. <br /> IZc fwrk <br /> To accomplish these objectives, the following activities are proposed: <br /> a Review available geologic and hydrogeologic data pertinent to the site. <br /> o Drill two standard-penetration, hollow-stem auger soil borings. <br /> o Complete two soil borings as monitoring wells. <br /> _ 9 Classify soils according to the Unified Soil Classification System (USCS). <br /> o Screen containerized soil samples with a portable photoionization detector for total <br /> organic vapors. <br /> o Select soil samples from each boring to be sent to the laboratory according to soil- <br /> screening results. <br />