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`qq <br /> fill <br /> 55 i <br /> AUG 19 1992 <br /> �® ENVIRONMENTAL HEALTH <br /> E <br /> GROUNDWATER PERMff/,r-r-RviCES <br /> FEI TECHNOLOGY, INC. <br /> 1441 Hahard l)nve Suite 140 West Sacramento CA95691 (916)372-4740 <br /> FAX(916)372-8781 <br /> August 11, 1992 Project No 02320 2124 <br /> Mr Kenneth Olds <br /> Lammersville School District <br /> 16555 West Von S6-sten Road <br /> Tracy, CA 95376 <br /> RE THIRD QUARTER STATUS REPORT FOR 1992 <br /> LAMMERSVILLE SCHOOL DISTRICT <br /> 16555 WEST VON SOSTEN ROAD <br /> TRACY, CALIFORNIA <br /> Dear Mr Olds <br /> This letter is presented by Groundwater Technology, Inc to summarize results of groundwater <br /> • monitoring at the Lammersville School in Tracy, California for the third quarter ending 1992 <br /> Groundwater monitoring and sampling was conducted in accordance with the November 15, <br /> 1991 agreement with the Lammersville School District The purpose of the field work was to <br /> determine water table elevation and the distribution of dissolved hydrocarbons in selected <br /> groundwater monitoring wells (MW's) related to the site Groundwater monitoring data and <br /> results of laboratory analyses of groundwater samples collected on July 29, 1992 are included <br /> WORK PERFORMED <br /> GROUNDWATER MONITORING <br /> On July 29 1992 all site related groundwater monitoring wells were gauged to determine depth <br /> to water IDTW) and to check for the presence of separate-phase hydrocarbons The water table <br /> elevations in the wells have increased an average of 0 26 foot from levels reported the previous <br /> quarter Groundwater monitoring data are summarized in Table 1 A potentiometnc surface map <br /> constructed from data collected on July 29, 1992 (Figure 1) indicates that the groundwater <br /> beneath the site flows to the north at a gradient of approximately 0 01 <br /> Offices throughout the US Canada and 0z,erseas <br />