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� r <br /> °SPT <br /> ERM-Westv Inc <br /> S�,te 260• 1777 Boteiho Dove•Vlainut Creek,Cahlornm 94596.5012 !4!51 946-0455 F,.3etat '4151;.16•99h8' <br /> October 9, 1991 <br /> Ms. Mary Meays <br /> Public Health Services/Environmental Health <br /> San Joaquin County <br /> 1601 East Hazelton Avenue <br /> Stockton,CA 95201 <br /> Subject: Thdrd Quarter Ground Water Monitoring Report <br /> 1515 West Weber Avenue, Stockton, California <br /> Site Code: 1284 <br /> Dear Mary: <br /> pleted the third quarter ground Nater sampling at <br /> ERM-West, Inc. has corn <br /> 1515 West Weber Avenue. Discussed herein are the purging and sampling <br /> atory analyses• Also included with this <br /> methods and the results of the labor <br /> report are the second quarter sampling findings for your reference. <br /> through MW-5 (Figure 1) were purged and <br /> Monitoring wells MW-1 <br /> 1991 by ERM-West, Inc. personnel. Prior to <br /> sampled on September 9, <br /> in the w <br /> purging, the depthdepth f the well was also ells was smeasured. The wellswere <br /> method (Table 1). rvximately 18 gallons of water per well. <br /> then purged by removing app <br /> After purging was completed, the wells were sampled. Sampling <br /> with ling wvs <br /> accomplished with a pre-cleaned Teflon bailer equippedlied <br /> petcock. Water was tranoble <br /> sfLed t from the bailer wereinto labeledand sealed into <br /> bottles. All samples Provided to the laboratory <br /> zip-lock type plastic bags, and then placed on ice in a cooler. <br /> Quality Assurance/Quality Control (QA/QC) procedures were fallow followed <br /> during purging and sampling. Prior to work at each well, the equip <br />- - <br /> was cleaned and decontaminated <br /> decontamination procedures was r tained <br /> clean-water rinse. - -gloves were worn while <br /> in 55-gallon drums and stored on site. Latex type g <br /> handling sampling equipment and sample bottles. Bailer cord was <br /> _ replaced before sampling at each well location. <br /> V- <br /> An attiliate-it The Environmental Resources Management Group with offices worldwide <br /> �0& <br />