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.1� - V= '7 r ,I Y �; - f - •, �+j'r. 1 f1s 'i ,�. i ,. `. y, ani -' r ., 4, i I,,�yr ' l � d ' k q = r ., lY• I s,r i 4 k! n-'�' 7 A! r '' .11 !, i Sty .1 - ' •.I ii-'•o- I I��. Quarterly'Report Third Quarter 2005'' •r F' }I,I." f FAST AND EASY MART , , k 244 West Harding Way;Stockton, ni Califora' .' lA. 'INTRODUCTION ' ^At the request' f Mr:Mike Ali;Advanced GeoEnvironmental„Inc.•(AGE)has prepared the enclosed .4quarterly,report for the property located at 244 West Harding Way,Stockton-California:,The scope.` :: •, "of.work included ground water monitoring and sampling,laboratorysampie'analysis and preparation of this report: The site and surrounding area are illustrated on Figure 1. On-site structures;.soil borings, and monitoring well'locations are illustrated on Figure 2.'Site background inforination is- ,, ; included in Apoendik A. 2.0. PROCEDURES 1 . ' Field procedures were performed in accordance with Central Valley Regional Water Quality Control Board (CVRWQCB).guidelines for the.investigation of•underground storage tank(UST) sites and San Joaquin County Environmental Health Department(EHD)guidelines for the sampling of ground ' water monitoring wells. �, . 2.1. WELL MOMTORING AND EVACUATION On 02 September 2005 Ahe depth to ground water in monitoring wells MW4 through'MW-3 was . •' measured from.the to of each well casing to the nearest 0.01-foot utilizin a'Soiinst water level . , p g g - . meter, Ground water elevation in each well was calculated by subtracting the measured,depth to ground water from the 'surveyed casing elevation (Table 1). , "After water levels were measured, approximately' 8:5 gallons of water,(a minirrium of three casing ,, ' ' . water.volumesper well) were purged from each well using dedicated; disposable'plastic bailers. - Ground water temperature,pH,and conductivity were,measured at regular intervals for stabilization during purging,using an Oakton water analyzer. Field sheets and data'are included in Appendix B. ' Purged water was stored on in properly labeled,Department of.Transportation(DOT)-approved 55-gallon drums pending proper disposal. ” r 2.2. COLLECTION OF GROUND WATER SAMPLES �' Ground water samples'were'collected from the monitoring wells using disposable plastic'bailers; ' ;:;these bailers were-.disposed of after one use,,thereby' minimizing cross-contamination.due- to; sampling devices. Each ground water sample.was collected into-three 40-milliliter (ml) volatile ' organic analysis (VOA) vials. containing 0.5 ml ,18% hydrochloric acid..solution as•a sample ' s' preservative. After collection, the 'samples. were'labeled`and placed in-,a chilled container 'for �'' Advanced GeoEnvironm6tal Inc.