Laserfiche WebLink
nl � <br /> • Quarterly Report - First Quarter 2004 <br /> COMFORT AIR, INC. <br /> 1607 Turnpike Road, Stockton, California <br /> 1.0. INTRODUCTION <br /> At the request of Mr Greg Gaut,Advanced GeoEnvironmental, Inc (AGE) has prepared this <br /> quarterly report of environmental activities conducted at Comfort Air, Inc , 1607 Turnpike Road, <br /> Stockton, California (site) The scope of work included a quarterly ground water monitoring <br /> event and preparation of this report The objective of the work was to monitor dissolved <br /> petroleum hydrocarbon and fuel additive concentrations in ground water and to characterize <br /> ground water flow direction and gradient on the site The location of the site is illustrated in <br /> Figure 1 A plan of the site is illustrated in Figure 2 <br /> This report is prepared in accordance with guidelines issued by the Central Valley Regional <br /> Water Quality Control Board (CVRWQCB) for investigation of underground storage tank(UST) <br /> sites A summary of previous investigations at the site was included in the AGE-prepared <br /> Quarterly Report -February 1997, dated 18 April 1997, and Monitoring Well Installation Work <br /> Plan -July 1998, dated 23 July 1998 A summary of environmental assessment activities is <br /> included in Appendix A Historical ground water monitoring results are summarized on Tables 1 <br /> • through 3 <br /> 2.0. PROCEDURES <br /> Field activities were performed in accordance with guidelines for investigation of underground <br /> storage tank (UST) sites and sampling ground water monitoring wells issued by the Central <br /> Valley Regional Water Quality Control Board (CVRWQCB) and by the San Joaquin County <br /> Environmental Health Department (EHD), respectively <br /> 2 1 QUARTERLY WELL MONITORING <br /> On 30 March 2004, the fourth quarter ground water monitoring event was conducted at the site <br /> A total of fifteen wells were monitored and sampled <br /> 2 1 1 Well Monitoring and Evacuation <br /> A Solinst water level meter was used to measure the depth to ground water in wells MW-3, MW- <br /> 5, MW-6, MW-7, MW-8A/B through MW-12AB and EX-1 relative to the tops of the well <br /> casings (Table 1) After the depth-to-ground-water measurements, a minimum of three casing- <br /> water volumes of water was purged from each well using dedicated, disposable plastic bailers for <br /> wells MW-7 and MW-8A through MW-12A and a Watera Hydro-Lift H pump for the remaining <br /> Advanced GeoEnviroamental,Inc <br />