Laserfiche WebLink
r <br /> r Cone Penetrometer Testing ( ) Report ort - November 2001 <br /> p <br /> r K& S GAS & GROCERY <br /> 701 East Charter Way, Stockton, California <br /> r1 0. INTRODUCTION AND SCOPE OF WORK <br /> r At the request of.Mr Kaldoon Othman of K&S Gas &Grocery,Advanced GeoEnvironmental, Inc <br /> (AGE),has prepared the enclosed report for 701 East Charter Way, Stockton, California The report <br /> documents procedures and results for subsurface investigation conducted at the site on 02 and 07 <br /> r November 2001, as described in the AGE-prepared Revised Work Plan Addendum - October 2000 <br /> and approved by the San Joaquin County Public Health Services - Environmental Health Division <br /> (PHS-EHD) by letter dated 08 November 2000 The site setting is illustrated on Figure 1 Site <br /> rstructures and monitoring well locations are depicted on Figure 2 <br /> The objective of the cone penetrometer testing (CPT) investigation was to characterize and assess <br /> L concentrations of dissolved petroleum hydrocarbons and volatile halocarbons in ground water and <br /> to characterize stratigraphy at the site This report has been prepared in accordance with guidelines <br /> Issued by the Regional Water Quality Control Board - Central Valley Region (RWQCB) for <br />' investigations of underground storage tank(UST)sites Background information and site history are <br /> summarized in the AGE-prepared.Monitoring Well Installation Report, dated 02 June 1999 <br /> r• <br /> 2 0. CPT SOIL BORINGS <br />' On 02 and 07 November 2001, two paired CPT soil borings (CPT-4 and CPT-5) were advanced at <br /> the K& S site utilizing CPT technology to 1) supplement data from three other CPTs advanced 14 <br /> I and 15 February to delineate the vertical and horizontal extent of impacted ground water and soil at <br /> the site, 2) characterize the geological and hydro-geological framework, and 3) assess potential <br /> petroleum-migration pathways beneath the site Additionally, "grab" ground water samples were <br />' collected from selected depths at each CPT soil-boring location Boring logs are presented in <br /> Appendix A, a site plan depicting boring locations is presented in Figure 2 <br /> r21 CPT LI'THOLOGIC SOUNDINGS <br /> Two CPT soil borings were advanced vertically utilizing a 25-ton truck-mounted CPT drill rig <br /> equipped with 1 50-inch diameter hollow rods(See Figure 2),the equipment was supplied by Gregg <br /> Drilling, Inc CPT-4 was advanced to 150 feet below surface grade (bsg), CPT-5 was advanced to <br />' 141 feet bsg <br /> Each CPT soil boring utilized a hydraulic ram to advance a cone penetrometer tip to the total depth <br />' of each soil boring Soil parameters such as cone penetrometer tip resistance,sleeve friction, friction <br /> • ratio (ratio between sleeve friction and tip resistance) and pore water pressure were continuously <br />' Advanced GeoEnv]ronmentai,Inc <br /> r <br />