Laserfiche WebLink
r 1 <br /> SMTH <br /> ENVIRONMENTAL TECHNOLOGIES CORPORATION ` lr + r <br /> July 17, 1997 <br /> Mr. Ronald Rowe <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E. Weber Avenue, 3rd Floor <br /> Stockton, CA 95202 <br /> Subject: Second Quarter 1997 Groundwater Monitoring Report for the Fayette <br /> Manufacturing Site, 7675 West Eleventh Street, Tracy, California, SITE CODE: <br /> 2233 <br /> Dear Mr. Rowe: <br /> As required by the San Joaquin County Public Health Services (PHSIEHD) and at the request of <br /> Dr. A.R. Glover, Smith Technology Corporation has prepared this letter report summarizing the <br /> Second Quarter 1997 Groundwater Monitoring and site activities performed at the above <br /> referenced site (Figure 1). Sampling was performed to monitor the distribution of petroleum <br /> hydrocarbons in groundwater and to monitor bioparameters in groundwater to determine if <br /> -' bioremediation is occurring in the dissolved petroleum hydrocarbon plume. Monitoring was <br /> performed to determine the groundwater flow direction and the hydraulic gradient in the <br /> uppermost aquifer. <br /> BACKGROUND <br /> Site Location <br /> The project site is located at 7675 West Eleventh Street, between MacArthur Drive and. Chrisman <br /> Road, in Tracy, California. The site location is shown on Figure 1. The vicinity of the site is <br /> primarily a commercial and industrial area. The property is owned by Dr. A.R. Glover. <br /> The site is located on generally level terrain which slopes gently toward the Tom Paine Slough, a <br /> northwest trending extension of the delta located approximately 2.5 miles north of the site. <br /> Previous Work <br /> On October 15, 1986, two 500-gallon gasoline underground storage tanks (USTs) were removed <br /> from the site. During removal of the USTs, petroleum product was noted present in the southern <br /> UST excavation (Figure 2). Soil samples were collected from 2 feet below the bottom of the <br /> USTs, and petroleum constituents and lead were detected in the soil samples. <br /> On July 18, 1995, Smith Technology supervised the installation of three groundwater monitoring <br /> wells, MW-1, MW-2, and MW-3 (Figure 2). During installation of the monitoring wells, soil <br /> 1260 Grapphics Drive Modesto,CA 95351-1501 (209)579-2221 Fax(209)579-2225 <br /> wA951221Reparfsl2QMR1997Am <br /> Engineering Consulting • Remediation Construction <br />