Laserfiche WebLink
GROUND ZERO ANALYSIS, INC. <br /> 1714 Main Street <br /> Escalon, California 95320-1927 <br /> Telephone (209)838-9888 <br /> Facsimile (209)838-9883 <br /> i <br /> Do <br /> March 28,2002 MAR 2 9 2002 <br /> L n LTH <br /> Mr Jeffrey Wong <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue,Thud Floor <br /> Stockton, CA 95202 <br /> Subject First Quarter 2002 Groundwater Monitoring and Sampling Report <br /> Former Harry's Auto Mart <br /> 2662 N Wilson Way, Stockton, CA(Site Code 1306) <br /> Dear Mr Wong <br /> This letter report presents the results of the first quarter 2002 groundwater monitoring and sampling <br /> activities at the subject site(Figure 1) <br /> SITE ACTIVITIES <br /> Activities at the site included monitoring water level elevations, purging and sampling groundwater from site <br /> wells and U-Haul well MW7, and removing and disposing of waste soil and purge water In addition, the <br /> locations and elevations of the monitoring wells were professionally surveyed per AB2886 <br /> Samples were analyzed for total petroleum hydrocarbons as gasoline (TPHg), benzene, toluene, <br /> ethylbenzene, total xylenes (BTEX), gasoline oxygenate additives, 1,2-drehloroethane (1,2-DCA), and <br /> ethylene dibromrde(EDB) <br /> FIELDWORK <br /> Groundwater Monitoring and Sampling <br /> On March 15 2002, water levels in wells MW1 through MW4 and U-Haul well MW7 were monitored <br /> Groundwater elevations were calculated by measuring the depth to groundwater In each site well and <br /> subtracting from the respective wellhead elevation Depth to water in the site wells ranged from 47 49 to <br /> 49 20 feet below ground surface (bgs), and the potentrometnc surface elevation ranged from 29 71 to 29 79 <br /> feet below mean sea level <br /> Groundwater rose an average of 2 69 feet since last measured on December 31, 2001 and flowed radially <br /> from the area southeast of well MWl with no definitive bearing <br /> 11GZA_FSISYS011Data1GROUNDZE\HARRYS1RepoftsV QM2002 doc <br />