Laserfiche WebLink
i <br /> Quarterly Report - Second Quarter 2000 <br /> TOP FILLING STATION <br /> I101 South Wilson Way, Stockton, California <br />' 1.0. INTRODUCTION AND SCOPE OF WORK <br /> At the request of Mr Ed Endlch of Top Filling Station, Advanced GeoEnvironmental, Inc (AGE) <br /> Ihas prepared this Quarterly Report for 101 South Wilson Way(the site), Stockton, California The <br /> report documents procedures and results for subsurface investigation conducted at the site during <br />' April,May and June 2000 (second quarter) The site setting is illustrated on Figure 1 Site structures <br /> and monitoring well locations are depicted on Figure 2 <br />' The objective of the second quarter investigation was to characterize, assess and monitor <br /> concentrations of adsorbed and dissolved petroleum hydrocarbons in soil and ground water and to <br /> characterize ground water flow direction and gradient at the site This report is prepared in <br />' accordance with guidelines established by the San Joaquin County Public Health Services - <br /> Environmental Health Division (PHS-EHD) and by the Regional Water Quality Control Board - <br /> Central Valley Region(RWQCB-CVR) for investigation of underground storage tank (UST) sites <br />' A summary of previous investigations at the site was included in the Quarterly Report - October <br /> 1996, dated 22 November 1996, prepared by AGE <br /> The following is a brief summary of second quarter site assessment activities performed <br /> • 06 and 07 April 2000 - Advancement of five cone penetrometer testing (CPT) soil borings <br />' (CPT-1, CPT-lA, CPT-2, CPT-2A and CPT-3) <br /> • 10 and 11 April 2000 - Collection of soil and"grab"ground water samples at CPT-IA, CPT- <br /> 2A and CPT-3 <br /> • 21 June 2000 - Quarterly ground water monitoring and sampling event at wells MW-1, <br />' MW-2, MW-3, MW-4, MW-5, VW-1B, VW-1C, VW-2A, VW-2B, VW-3A and VW-3B <br />' 20. CPT SOIL BORINGS <br /> On 06 and 07 April 2000, five soil borings (CPT-1, CPT-1A, CPT-2, CPT-2A and CPT3) were <br />' advanced on- and off-site utilizing CPT technology to characterize the geological and hydro- <br /> geological framework and to assess potential petroleum-migration pathways beneath the site <br />' Based on CPT lithologic sounding data collected at CPT-1, CPT-IA, CPT-2, CPT-2A and CPT3, <br /> depth-discrete soil samples and"grab"ground water samples were collected on 10 and 11 April 2000 <br /> by revisiting CPT soil bonngs CPT-I A, CPT-2A and CPT3 Boring logs are presented in Appendix <br /> A, a site plan depicting boring locations is presented In Figure 2 <br /> Advanced GeoEnvironmental,Inc <br />