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v �* � � <br /> ' 1117 Lone Palm Avenue <br /> ��, �w Suite s <br /> Modesto GA 95351 <br /> 209 579 2221 <br /> Fax 209 579 2225 <br /> A S 5 0 C I A T E 5 I N C r 1} <br /> August 30, 1999 <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 Third Quarter 1999 Groundwater Monitoring Report, Franklin High School, 300 <br /> North Gertrude Avenue, Stockton, California <br /> Dear Mr Wong <br /> fr <br /> ATC Associates Inc , on behalf of the Stockton Unified School District, has prepared this letter <br /> to serve as a Third Quarter 1999 Monitoring report for the subject site (Figure 1) <br /> INTRODUCTION <br /> ATC's activities during the Third Quarter of 1999 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 Additionally, soil and water generated during the installation and development of MW 1, <br /> was transported off-site for treatment/disposal <br /> GROUNDWATER MONITORING <br /> Groundwater Monitoring and Sampling <br /> On July 29, 1999, 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 54 21 feet below grade, indicating an increase <br /> in the water table of 0 63 feet since water depth was last measured in February 1999 The <br /> i groundwater monitoring data are summarized in Table 1 <br /> w 117292 00014eportsl3 qmr 1999 doc 1 <br />