Laserfiche WebLink
GROUND ZERO ANALYSIS, INC. ��1 1:1 M t �V( [ ,1_111 <br /> Pt <br /> 1714 M�Street <br /> Escalon,California 95320-1927 43 OCT 22 PM 12= <br /> Telephone (209)838-9888 <br /> Facsmule (209)838-9883 <br /> October 21, 2003 <br /> Mr Michael Infurna <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, CA 95202 <br /> Subject Third Quarter 2003 Groundwater Monitoring and Sampling Report <br /> Former Harry's Auto Mart, <br /> 2662 N Wilson Way, Stockton, CA (Site Code 1306) <br /> Dear Mr Infurna <br /> This letter report presents the results of the third quarter 2003 groundwater monitoring and <br /> sampling activities at the subject site (Figure 1) <br /> SITE ACTIVITIES <br /> Activities at the site included monitoring water level elevations and purging and sampling <br /> groundwater All samples were analyzed for total petroleum hydrocarbons as gasoline (TPHg), <br /> benzene, toluene, ethylbenzene, total xylenes (BTEX), gasoline oxygenate additives, 1,2- <br /> dichloroethane (1,2-DCA), and ethylene dxbromide (EDB) <br /> FIELDWORK <br /> Groundwater Monitoring <br /> On September 8, 2003, water levels were measured in the site monitoring wells Well MW2 was <br /> dry, and well MW3 could not be accessed because a car was parked on top of it Depth to water <br /> measured in wells MW1, MW4 and U-Haul MW7 was 61 65, 59 65 and 59 97 feet below ground <br /> surface (bgs), respectively The potentiometric surface at the site fell an average of 10 38 feet <br /> since last measured on May 5, 2003 The potentiometrlc surface elevations measured on <br /> September 8, 2003 are shown on Figure 2 No onsite gradient map was constructed because of <br /> the lack of usable data Groundwater monitoring data are summarized in Table 1 Monitoring <br /> • data sheets are included in Attachment A Also included in Attachment A is a summary table <br /> including the September 8, 2003 water level measurements from the adjacent U-Haul site Figure <br /> I1GZA—FSIVOL-11DATAIGROUNDZEIHARRYS\ReportsNQMR1200313QM2003 doc <br />