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' Quarterly Reportp -Third Quarter 2003 <br /> ' WELDON CHURCH PROPERTY <br />' 104 West Beverly Place;,Tracy, California <br />' 1.0, INTRODUCTION <br /> -At the request of Mr...Weldon Church,-Advanced'GeoEnvironmentai, Inc: (AGE) has prepared this <br /> quarterly ground water monitoring report for the-site at 104 West-Beverly Place, Tracy; California <br /> ' (the site). The scope of work included the monitoring and,sampling of eight wells and preparation <br /> of this report. The site location is illustrated on Figure 1.,Locations of structures, borings and <br />' "monitoring wells related to the site are illustrated on Figure 2. Site background information is . <br /> . provided iii Appendix A: _ <br /> 2.0. PROCEDURES <br />' The September 2003 nnoratoring 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; respectively. <br />' .•,2.1,. WELL MONITORING AND EVACUATION <br />' "in -On 11 September 2003, a Solinst water level,meter was used to measure the depth to ground water <br /> - relative to- to of the well ca§in . After <br />: • water monitoring wells M W l through MW 7 rel p g <br /> - ground,water depth measurements were collected, each monitoring'well was purged using a new <br />' disposable plastic-bailer. Between approximately 3 and 10 gallons of water was evacuated from each <br /> z monitoring well, a mininiLUZ� of three casing=water volumes per,well. <br />' Teniperature,-pH and conductivity were measured at 1 and 2 gallon Interv' als',' as appropriate,-using. , <br /> an Oakton water analyzer to monitonstabilization',of these ground water parameters.Field data logs, <br /> " are • included , in.'Appendix• B. `Purged water was'-temporarily stored on-site •in '55-gallon, <br />'• DOT-'approved storage drams pending proper disposal. <br />' 2.2. COLLECTION AND ANALYSIS OF GROUND-WATER SAMPLES <br /> Watersal iples were collected- r6ni monitoring wells MW1'through MW-7 usirig new disposable <br /> bailers. The samples were transfer'cd into'40-ml EPA-approved'volatile organic.analysis (VOA). <br /> vials'containing 0.5'nz118%hydrochloric acid as a preservative. The sample vials were then labeled <br />' with the nianitoriilg well designation,date,tirile ofsampling and the sample'r's initials. The.samples . <br /> •:were transported; in..a .chilled container under chain- custody to Cal. Tech; Environmental <br /> Advanced GcoEnvironinental,Inc. ' <br />