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' Quarterly Report - Fourth Quarter 2005 <br /> FIVE STAR MARINA <br /> 345 Yosemite Street, Stockton, California <br /> 1.0. INTRODUCTION <br /> At the request of Mr Terry McDonald of Five Star Manna, Advanced GeoEnvironmental, Inc <br /> ' (AGE)has prepared this quarterly report for the property located at 345 Yosemite Street, Stockton, <br /> California (site) The scope of work Included the performance of a quarterly ground water <br /> monitoring event, submission of analytical data to the State Water Resources Control Board's <br /> ' GeoTracker information management system,and preparation of this report The location of the site <br /> and the surrounding area Is illustrated on Figure 1, structures, former underground storage tank <br /> ' (UST) locations, and soil boring and monitoring well locations are illustrated on Figure 2 <br /> Site history and findings from previous investigations and monitoring events are provided in <br /> ' Appendix A The results of previous ground water monitoring events are included in the tables of <br /> this report <br /> ' 2.0. PROCEDURES <br /> , . This investigation was conducted In accordance with Central Valley Regional Water Quality Control <br /> Board(CVRWQCB)and San Joaquin County Environmental Health Department(EHD)guidelines <br /> for the subsurface investigation of underground storage tank (UST) sites and sampling of ground <br /> ' water monitoring wells, respectively <br /> ' 2 1 WELL MONITORING AND EVACUATION <br /> On 18 October 2005, a Solinst water level meter was used to measure the depth to ground water in <br /> ' monitoring wells MW-1 through MW-5 relative to the tops of the well casings After the depth to <br /> ground water measurements were collected,casing water in the wells was evacuated using dedicated, <br /> disposable plastic bailers Approximately 4 5 to 5 5 gallons of water were evacuated from each well, <br /> equivalent to three casing water volumes per well <br /> ' Temperature, pH, and conductivity of the purged water were measured for stabilization at regular <br /> intervals using an Oakton water analyzer Field data logs are provided in Appendix B Purged water <br /> was containerized in properly labeled, Department of Transportation (DOT)-approved 55-gallon <br /> drums and stored on-site pending proper disposal <br /> ' 22 COLLECTION AND ANALYSIS OF GROUND WATER SAMPLES <br /> • Water samples were collected from each monitoring well using dedicated,disposable plastic bailers <br /> ' Advanced GeoEnvironmental,Inc <br />