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1117 Lone Palm Avenue <br /> ,aa <br /> Suite B <br /> Modesto CA 95351 <br /> 209 579 2221 <br /> i Fax 209 579 2225 <br /> A S S O C i A T E S I N C 22 <br /> April 12, 2000 <br /> 17292 0001 <br /> Mr Jeff Wong <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E Weber Street, Third Floor <br /> Stockton, California 95202 <br /> Subject First Quarter 2000 Groundwater Monitoring Report, Franklin High School, 300 <br /> North Gertrude Avenue, Stockton, California <br /> Dear Mr Wong <br /> ATC Associates Inc , on behalf of the Stockton Unified School District, has prepared this letter <br /> to serve as a First Quarter 2000 Monitoring report for the subject site (Figure 1) <br /> INTRODUCTION <br /> ATC's activities during the First Quarter of 2000 included monitoring the water level and <br /> collecting a groundwater sample from on-site monitoring well MW-1, analyzing the collected <br /> groundwater sample for petroleum hydrocarbon constituents, and preparation of this quarterly <br /> report The location of the well is shown on Figure 2 <br /> GROUNDWATER MONITORING <br /> Groundwater Monitoring and Sampling <br /> On March 15, 2000, ATC personnel conducted quarterly monitoring and sampling at the above <br /> referenced site The well was monitored, purged, and sampled in accordance with ATC's Site <br /> Safety Plan and Quality Assurance/Quality Control Plan (QA/QC Plan) submitted to PHS/EHD <br /> on February 1, 1999 <br /> The groundwater level in the monitoring well was 53 88 feet below grade, indicating an increase <br /> in the water table of 0 33 feet since water depth was last measured in July 1999 The <br /> groundwater monitoring data are summarized in Table 1 <br /> w 117292 0001Vepom\l qmr 2000 doc 1 <br />