ARCHIVED REPORTS_XR0006057 - Laserfiche WebLink

Home Browse Search

' Closure Summary Report • MOORE TRUCK LINES ' 3400 Newton Road, Stockton, California, ' 1.0. INTRODUCTION At the request of Mr Eric Wei lburg, Advanced GeoEnvironmental, Inc (AGE) has prepared this ' Closure Summary Report (CSR) for Moore Truck Lines (site) located at 3400 Newton Road, Stockton, California (Figure 1) This report, 1) documents procedures and results for cone penetrometer testing (CPT) conducted at the site in April 2004 and 2) summarizes assessment activities to date,and provides rationale to justify site closure The work included collection of ground water and soil samples from one soil boring to assess the impact of petroleum hydrocarbons ' and fuel oxygenating compounds on ground water beneath the site The objective of this investigation was to characterize and assess the vertical and horizontal extent of dissolved petroleum ' hydrocarbons and to characterize the geologic and hydrogeologic framework underlying the site ' This report is prepared in accordance with guidelines established in Appendix A and Appendix B to Tri-Regional Recommendations -Reporting, dated 16 April 2004, prepared by the Central Valley Regional Water Quality Control Board (CVRWQCB) for the investigation of UST sites • 20. BACKGROUND The site is presently operated as a short-haul trucking and truck repair facility with an office,loading dock and distribution center on the property (Figure 2) Four USTs were in use at the site for approximately 37 years Below is presented a summary of site background information including setting, ground water depth, flow direction, well surveys, tank removal and site assessment 21 REGIONAL,GEOLOGIC/HYDROGEOLOGIC SETTING The site is located in an area of low topographic relief According to Geologic Map of California, published in 1966 by the California Department of Conservation Division of Mines and Geology, the site area is shown to be within the Great Valley Geomorphic Province (GVGP) of California, a large, elongate, northwest trending structural trough The GVGP is subdivided into two major divisions designated the Sacramento and San Joaquin Valleys,which have been filled to the present ' elevation with thick sequences of sediment ranging in age from Jurassic to Recent, creating a nearly flat-lying alluvial plain extending from the Tehachapi Mountains in the south to the Klamath Mountains in the north The Western and eastern boundaries of this province are comprised of the California Coast Range and the Sierra Nevada, respectively The Modesto, Riverbank and Turlock Lake Formations and overlying recent alluvium are the principal source of domestic ground water in the 13,500 square-mile San Joaquin Valley Ground Water Basin (Basin 5-22) This basin ;s drained primarily by the San Joaquin River Advanced GeOEnvironmental,Inc