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 /> Jul 2002od��a <br /> July 18 <br /> E <br /> Ms Margaret Lagono <br /> San Joaquin County Q <br /> Environmental Health Department G,al <br /> 304 East Weber Avenue, Third Floor /���i� J YA <br /> Stockton, CA 95202 <br /> Subject Confirmation Groundwater Sampling oZ" <br /> Souza II, LLC, 612 West 1 Vh Street, Tracy, California <br /> Site Code 0001283 <br /> Dear Ms Lagono <br /> This letter report presents the results of confirmation groundwater samples collected at the <br /> subject site (Figure 1) <br /> Activities described in this letter report include surveying all site wells pursuant to A132886, <br /> monitoring depth to water in wells MW 1 through MW3, purging and sampling wells MW 1 <br /> through MW3, and analyzing the samples for petroleum hydrocarbon constituents <br /> FIELD WORK <br /> Monitoring Well Surveying <br /> In accordance with AB2886, all monitoring wells were surveyed by a Registered Surveyor to a <br /> horizontal accuracy of less than one meter and a vertical accuracy of 0 01 feet In January 2002, <br /> Morrow Surveying surveyed the latitude and longitude of the site wells relative to the North <br /> American Datum (NAD83), and surveyed the wellhead elevations relative to assumed NAVD29 <br /> from GPS observations based on City of Tracy datum A site map showing monitoring well <br /> locations, latitude, and longitude coordinates and wellhead elevations is included in Attachment <br /> A <br /> Groundwater Monitoring <br /> An experienced Ground Zero technician measured the depth to groundwater in each site well on <br /> June 11, 2002 The depth to groundwater ranged from 11 00 to 11 54 feet below ground surface <br /> G 1Data1GROUNDZEISouza\Reportsl2QMR_2002 doc <br />