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Ground Water Monitoring Report,-! Third Quarter 2001 <br /> STRONG PROPERTY <br />' f 5157 West Business Loop 205, Tracy, California <br /> 'INTRODUCTION <br /> ' At,the request of Mr. Mike Strong, 'Advanced GeoEnvironmental, Inc. (AGE) has.prepared this i <br /> quarterly:report for the property located at 5. -57 West Business Loop 205, Tracy, California. The _ <br /> scope of work,completed during the.quarter included groundwater monitoring and sampling of <br /> monitoring wells MW 1 through MW6, the domestic well located 5157 West Business Loop'205 <br /> (DW5157}and preparation of this report. The site and the surrounding area are illustrated in Figure ' <br /> 1. Structures'and'monitoring well'locations are illustrated on'Figures 2'aiid 3. <br /> Packground information is, summarized in'the AGE- re aced document titled Additional Site <br /> Assessment.Work Plan Addendum,'dated O l'July-2000. Quarterly monitoring data from July 1998- <br /> to <br /> 998-to the present is sumr marized in Tables 1 and 2,of this report.. <br />' 2.0. PROCEDURES rn <br /> All field work procedures`and reporting requirements are in accordance with guidelines established <br />'.' by the Central Valley Regional Water Quality Control Board (CVRWQCB) for subsurface, <br /> investigations of underground storage tank (UST);sites and guidelines established by San Joaquin <br /> County Public Health Services-Environmental Health Division(PHS-EHD)for sampling of ground <br />' water monitoring wells. , <br /> 2.1. MONITORING WELL,PURGE•'PROCEDURES <br /> Sampling .of,ground water ,monitoring wells MW1 thraugh MW6 and-DW51..57 occurred on <br />' 1'3 September 2041 :A Solirist'water level meter was used'to.measure the depth to ground water in <br /> p, <br /> the.six monitoring wellsrelative to-the tops of the we11 casings.•The ground water,elevatioias and <br />' gradient;were,determined from these data(Table 1). <br /> Ater,recording water level"measurements, a .disposable plastic bailer was used to purge each <br /> monitoring`well 'o£standing water. Approximately 6 to 9 gallons of water (a.minimum of 3. <br />' casin -water volumes ,,.,were removed-'firom each well,. Ground water temperature, pH and ', <br /> g. ) y .. <br /> conductivity were measured at regular intervals during purging using an Oakton water analyzer. <br />' Field sheets and data' are included in.-Appendix'A.'Purged.water was,stored on-site in labeled, <br /> 55-gallon DOT-approved"drums.- <br /> Advanced GeoEnvironmental,inc. <br />