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1 - <br /> • <br /> GEO-PHASE <br /> - ENVIRONMENTAL <br /> REPORT <br /> Soil Boring Installation <br /> & <br /> Monitoring Well Construction <br />' Former Valley Water Treatment <br />' 612 N. Buena Vista <br /> Stockton, California <br />' Project, No. 480.2 <br /> March 1.4, 2006 <br />'• 1.0 INTRODUCTION <br />' This report documents the installation of four hollow-stem auger soil borings <br /> and the subsequent construction of four groundwater monitoring wells. This <br /> work was completed to investigate the extent of gasoline impacted soil and <br /> groundwater from a former leaking underground storage tank. <br />' 1.1 SITE HISTORY <br /> The site consists of a single parcel of light industrial use Property encompassing <br />' a total area of about 0.8 acres. It is on the east side of Buena Vista Avenue at its <br /> terminus against the deep water turning basin and just south the intersection <br /> with Fremont Street. A water softener company, (Valley Water Treatment) has <br />' occupied a portion of the parcel. <br />' In 1987, a former underground gasoline tank was removed under County <br /> supervision and low levels of petroleum hydrocarbons leaked to impact the soil. <br /> On March 9, 2005, Geo-Phase Environmental issued a document entitled R.e ort <br /> - Soil Borbr Installation 612 N. Buena Vista AUenue Stockton CA regarding <br /> the installation of several Geo-Probe soil borings that documented the presence <br />' 2937 Veneman Ave., #B240 Geo-Phase Environmental Inc. Phone (209) 569-0293 <br /> Modesto, CA 95356 Fax (209) 569-0295 <br /> 1 <br />