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E _ -wfk>!� �Y' � 'y 1i y-, i ,A C Y .• i i>+. r_ i S- l iy 'i ' i� rf_" r^ .` +,Ir'�' <br /> f <br /> 1 1. J <br /> ,y I/ ^ !I y.11' 1" A",i• 44 '.r A \I1.5 _ _ ✓ - -1 s! , i <br /> 4 �I 1 ,4�R '4. t ' � i trf r �• LF <br /> S �:1 • 1 ", •' _' N x '.r •.'' ' � { 4 fir _ <br /> 'iAu'{Yri I by Quarterly Report Fourth Quarter 2005 <br /> r <br /> -FAST AND'EASY'MART. M . w ; <br /> 244 West Harding Way; Stockton;California_ <br /> ' 1.0. '•INTRODUCTION ` <br /> At the request ofMr.Mike'Ali,Advanced GeoEn'vironmental,Inc.;(AGE)has prepared the enclosed <br /> 1 quarterly report'for_the property located at 244 West Harding Way,•Stockton, California..The scope <br /> of working included.quarterly ground water .monitoring:and sampling; sample ,analysis, arid i <br /> preparation-of this report. The site and surrounding area are'illustrated on Figure L' Onsite ; <br /> structures, soil borings; and monitoring well locations are illustrated on Figure 2: Site background ; <br /> information is inciuded'in Appendix A. = ✓ <br /> 2.0. PROCEDURES <br /> ' Field procedures were performed in accordance with Central Valley Regional Water Quality Control , <br /> storage tank UST. 'sites and' <br /> Board(CVRWQCB) guldelmes for the,Investigation of underground _g { ) . <br /> San7oaquin County Environmental Health Department(EHD)guidelines for the sampling of ground <br /> water monitoring wells. <br /> 2:1`.. WELL MONITORING AND.EVACUATION <br /> ' <br /> 'On 25 November 2005, the depth to ground water in monitoring wells MW-1 through.MW-3 was <br /> measured from the top of each well casing to the nearest 0.01 foot utilizing,a Solinst.water.level <br /> meter. Ground water elevation in each well was-calculated by subtracting the measured depth to <br /> ground water from the surveyed casing elevation (Table 1). y <br /> After water levels were measured, approximately 8 gallons of water-(a minimum of three casing <br /> ' 1 <br /> water volumes per well) were purged from each well using dedicated, disposable plastic bailers. <br /> -Ground.water temperature,pH,and conductivity were measured at regular intervals for stabilization <br /> during purging using an Oakton water analyzer. Field sheets and data are included in Appendix B. <br /> ti <br /> Purged water was'stored"on-site in properly labeled,Department of Transportation(DOT)-approved' <br /> 55-gallori'drums pending proper disposal. <br /> 2.2. , •COLLECTION OF GROUND WATER SAMPLES <br /> Ground water samples were collected from the monitoring,wells using disposable plastic bailers; <br /> ' these bailers weredisposed of after one use, thereby minimizing cross-contamination due.to ' <br /> sampling devices.-Each ground water sample was collected into three 40-milliliter'(ml) volatile <br /> 1 organic analysis (VOA) vials containing,0.5 ml 18% hydrochloric acid solution las a sample. ._ <br /> preservative. After collection, the sarnples were,labeled'-arid placed in a chilled container for ry <br /> "Adbonced GeoEnvironmental,Inc.,. <br /> r I { _ - '. 'f X11, 1• <br />