Laserfiche WebLink
Quarterly Report - First Quarter 2005 <br /> TRACY MARINE SALES <br />' 2353 Toste Road, Tracy, California <br />' 1.0. INTRODUCTION <br /> At the request of Mr Joe Toste, Jr , Advanced GeoEnvironmental, Inc (AGE) has prepared this <br />' quarterly report for the property located at 2353 Toste Road, Tracy, California The site and the <br /> surrounding area are Illustrated on Figure 1 On-site structures,boring locations and monitoring well <br /> locations are illustrated on Figure 2 Background information is summarized in the AGE-prepared <br />' Additional Site Assessment Work Plan, dated 26 September 2000 Background information is <br /> summarized in Appendix A <br /> 1 <br /> 2.0. PROCEDURES <br />' Eleven ground water monitoring wells (MW-1 through MW-11) were purged and sampled on <br /> 09 March 2005 and an ozone-infection air-sparging system continually operated over the first <br /> quarter 2005 Fieldwork was performed in accordance with guidelines Issued by the Central Valley <br /> Regional Water Quality Control Board(CVRWQCB) for the Investigation of underground storage <br /> tank (UST) sites <br />�i <br /> 2 1 WELL MONITORING AND EVACUATION <br />' On 09 March 2005, a Solinst water level meter was used to measure the depth to ground water in <br /> wells MW-1 through MW-11 relative to the tops of the well casings The ground water elevations <br />' and gradient were determined from these measurements(Table 1) Additionally,a Hanna Instruments <br /> (HI) 9025 water analyzer was used to measure the oxidation-reduction potential in the monitoring <br /> well network The data collected is presented in Appendix B <br />' n water level measurements disposable plastic bailers were used to purge wells MW-1 <br /> After records g p <br /> through MW-11 of standing water Approximately 6 to 6 5 gallons of water(a minimum of 3 casing- <br /> water volumes per well)were removed from wells MW-1 through MW-5, MW-7, MW-9, MW-10 <br /> and MW-11 and approximately 14 gallons of water were removed from MW-6 Approximately <br />' 2 gallons of water were removed from well MW-8 before the well was bailed dry Ground water <br /> temperature,pH and conductivity were measured at regular intervals during purging using an Oakton <br /> water analyzer Field sheets and data are included In Appendix B Purged water was stored on-site <br />' in labeled, 55-gallon DOT-approved drums <br /> 22 COLLECTION AND ANALYSIS OF GROUND WATER SAMPLES <br /> . Water samples were collected from the purged wells using new disposable plastic bailers after <br /> Advanced GeoEnwonmental,Inc <br /> 1 <br />