Laserfiche WebLink
y CLOSURE SUMMARY REPORT <br /> October 1996 <br /> Former PureGro Company Facility <br /> 1904 West Charter Way <br /> Stockton, California <br /> 1.0. INTRODUCTION AND SCOPE OF WORK <br /> In accordance with a request from Mi. David Atwater of Van De Pol Enterprises, Advanced <br /> ' GeoEnvironmental,Inc.(AGE)has prepared the enclosed Closure Summary Report(CSR)for 1904 <br /> West Charter Way, Stockton, California(the site). The scope of work.was to summarize the soil and <br /> ground water investigations of the former underground storage tank (UST) areas at the site in <br /> preparation for site closure..The location of the site is illustrated in Figure 1 - Location Map. <br /> Significant features of the site are illustrated in Figure 2 - Site Plan. v <br /> This report is prepared in accordance with the guidelines established by the Tri-Regional Board and <br /> San Joaquin County Public Health Department - Environmental Health Division (PHS -EHD) for <br /> investigation of underground storage tank(UST) sites. <br /> 2.0. BACKGROUND <br /> 2.1. SITE LOCATION AND DESCRIPTION <br /> The PureGro Company operated a fertilizer-warehouse facility at the site until 1992. The site is <br /> located in an area of low topographic relief zoned for commercial.use in the western part of <br /> Stockton, in San Joaquin County, California. <br /> One building of approximately 10,000-square feet is located near the northern portion of the <br /> property.A small paved parking area is located north of the building. The remaining portion of the <br /> 'N site is unpaved. The USTs were formerly located east of the building. <br /> 2.2. REGIONAL GEOLOGICAL/HYDROGEOLOGICAL SETTING <br /> The subject site is located in the central portion of the Great Valley geomorphic province of <br /> California. The valley is-a nearly flat lying, elongate trough trending northwest and-southeast for <br /> approximately 450 miles. The valley is enclosed by the granitic'Siena Nevada Mountains on the east <br /> and the sedimentary and metamorphic Franciscan Coast Range''on the west. The surficial and upper <br /> several thousand feet of subsurface layers.consist primarily of unconsolidated and consolidated <br /> alluvial and flood plain sheet deposits (predominantly sand, silt,and clay) of Quaternary age, which <br /> were derived from the Sierra Nevada Mountains. Beneath the upper sedimentary deposits lies a thick <br /> sequence of marine deposits of Mesozoic age,which in turn are underlain by a pre-Jurassic complex <br />