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: <br /> 1 Quarterly Report - Third.Quarter 2004 <br /> WEL'DON CHURCH PROPERTY <br /> 104 West Beverly.Place, Tracy'..California. <br /> INTRODUCTION _ } <br /> • ,,., <br /> At-the request of Mr.Weldon..Church .Advanced'GeoEnvironmental, Inc. AGE has prepared this r <br />' quarterly ground.water monitoring report for the site at 104 West Beverly:Place,Tracy, California.. <br /> The scope of work included the monitoring-and sampling of-eight�weils and preparation of this <br /> report..The site location is illustrated on Figure 1. Locations of structures, boring's, and monitoring <br /> wells related to the site are illustrated on.Figure 2. Site background information is provided in <br /> ppendix A: <br /> f <br /> 2.0. PROCEDURES ' <br /> , <br /> 1 The September 2004 monitoring event was performed in accordance-with Central Valley Regional <br /> Water Quality Control Board (CVRWQCB) .and San Joaquin County Environmental"Health <br /> Department (EHD) guidelines for investigation of underground storage tank (UST) sites and for „ <br />' -sampling ground water monitoring wells. <br />' 2.1. WELL MONITORING AND EVACUATION <br /> 1 On 23•September 2004, a Solinst water level meter"was used to measure,.the depth to ground water <br /> in ground watermonitoring wells MW-1 through MW-7 relative to the tops of the well casings.After <br /> ground water depth measurements were collected, each monitoring,well was purged using a new <br /> 1 . disposable plastic bailer:.Between 2.25:,and'.7.25 gallons of water..were evacuated' from each <br /> -monitoring well;-a minimum of three casing-water volumes per well: <br /> 1 Temperature,pH, and conductivity;we're measured at 1ito 2.5 gallon intervals, as appropriate,using, let <br /> an Oakton water;analyzer to monitor stabilization of these ground water parameters. Field data logs <br /> are included in Appendix.B. Purged water was temporarily stored on-site in,55=gallon Departrnent <br /> of Transportation,(DOT)-approved storage drums pending proper disposal. <br /> 1 2.2. COLLECTION AND 'ANALYSIS OF GROUND WATER SAMPLES ; <br /> :Water samples were collected from monitoring wells MW-1 througli,MW=7 using new disposable' { <br /> bailers.The samples were., ansferred into 40-milliliter(ml)EPA=approved volatile organic analysis <br /> (VOA) vials containing 0.5 ml 18% hydrochloric acid solution as a preservative: The sample vials: <br /> were then labeled with the monitoring well designation, date,,time of`sampling, and the sampler's <br /> 1 initials. <br /> 1 :.t <br /> Advanced GeoEnvironmental,Inc: <br />