Laserfiche WebLink
Work Plan—Soil Boring Installation Page 2 <br /> 3291 S.Hwy 99 <br /> Project 472.2 <br /> July 16, 2007 <br /> with elevated concentrations of lead'associated with soldering circuit boards. <br /> The circuit board washer was removed from the premises and the sewer <br /> connections were plugged to prevent the possibility that additional releases <br /> could occur. Other chemical analyses in 1993 and 1994 indicated that slightly <br /> elevated concentrations of phenol, toluene,and chloromethane were detected in <br /> the septic tank water. It was concluded that these materials had entered <br /> through a sink drain. In 1996 or 1997, the septic tank and leach lines were <br /> reportedly removed and replaced. <br /> The purpose of this assessment is to collect soil samples from beneath the leach <br /> field and submit them for laboratory testing to obtain additional confirmation <br /> that the soil does not contain residual contaminants at concentrations that could <br /> be hazardous to human health. <br /> 1.2 Scope of Work <br /> To accomplish the goal of assessing environmental conditions in the vicinity of <br /> the leach field, the following work will be completed: <br /> 1. Install two (2) Geo-Probe soil borings through the leach field to a depth of <br /> about 25 feet below grade. <br /> 2 Test soil samples for the presence of contaminant heavy metals (CAM-17) <br /> volatile organic compounds, (VOCs) and semi-volatile organic compounds (S- <br /> VOCs). <br /> 2937 Veneman Avenue, Suite B240 Geo-Phase Environmental Inc. Phone: (209)569-0293 <br /> Modesto, Ca 95356 Fax: (209)569-0295 <br />