Laserfiche WebLink
May 18, 2005 <br /> NOA Project Number: E05059A <br /> ✓DBCP was not detected in the water sample. DBCP is a nematocide and soil fumigant for <br /> vegetables and grapes. It is thought to cause health problems consisting of kidney damage,liver <br /> damage, and cancer. The use of DBCP was discontinued in 1979. The Environmental Protection <br /> ` Agency (EPA) set the maximum contaminant limit (MCL) at 0.2 parts per billion (ppb) because the <br /> EPA believes that given present technology and resources, this is the lowest level to which water <br /> systems can reasonably be required to remove this contaminant should it occur in drinking water. <br /> ` v"�4.5 Well Water Sample Collection, Handling, and Transportation <br /> The samples were collected in a clean plastic container,then decanted into clean,glass vials. The <br /> samples were then transported on ice and remanded under chain of custody to Precision Enviro- <br /> Tech, Stockton. <br /> L /4.6 Chain of Custody <br /> LThe Chain of Custody document has been included in the appendix of this report. <br /> L j/5.0 SOIL PROFILE AND GEOLOGIC INFORMATION <br /> The Site is depicted on the USGS Preliminary Geologic Map of Cenotioic Defeo fits of the Bellota Quadrangle as <br /> Lconsisting of Mehrten Formation geology with small areas of Turlock Lake Formation and <br /> undifferentiated alluvium and colluvium (OFR-79-664). The Mehrten Formation is made up of <br /> andesitic conglomorate, sandstone, mudstone, and lahars. The Turlock Lake Formation is made up <br /> '` of arkosic alluvium and some locally-derived alluvium (Plate 7). <br /> The surface and near surface soils located at the Site are reported by the San Joaquin County Soil Survey <br /> to be composed of Montpellier-Cometa Complex, 5 to 8 percent slopes,Redding gravelly loam,2 to <br /> 8 percent slopes, and Yellowlark gravelly loam, 2 to 5 percent slopes (Plate 8) (USDA, 1992). Table <br /> 3 presents some selected properties of these soils: <br /> L <br /> L <br /> L <br /> 6 <br /> L '--44 <br /> L <br />