Laserfiche WebLink
❑� <br /> GROUNDWATER <br /> ❑❑ TECHNOLOGY, INC. 4057 Port ChicagoHighNay Concord CA94520(415)671-2387 <br /> F AN (415)b83-9148 <br /> November 13, 1992 Project No 02320 2124 <br /> Mr Kenneth Olds <br /> Lammersville School District <br /> 16558 West Von Sosten Road <br /> Tracy, CA 955376 RECEIVED <br /> SUBJECT FOURTH QUARTER STATUS REPORT FOR 1992 NOV 2 0 S92 <br /> LAMMERSVILLE SCHOOL DISTRICT ENVIRONMENTAL, HEALTH <br /> 16555 WEST VON SOSTEN ROAD PERMIT/SERVICES <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 fourth quarter ending 1992 <br /> Groundwater monitoring and sampling was conducted according to the November 18, 1991, <br /> agreement with the Lammersville School District The purpose of the field work was to determine <br /> water table elevation and the distribution of dissolved hydrocarbons in selected groundwater <br /> monitoring wells (MWs) related to the site Groundwater monitoring data and results of laboratory <br /> analyses of groundwater samples collected on October 7, 1992, are included <br /> WORK PERFORMED <br /> Groundwater Monitoring <br /> On October 7, 1992, nine of the ten monitoring wells were gauged to determine depth to water <br /> (DTW) and to check for separate-phase hydrocarbons Monitoring well MW-3 could not be located <br /> because of surface debris The water table elevations in the wells have increased an average of 0 88 <br /> foot from levels reported the third quarter Groundwater monitoring data are summarized in Table 1 <br /> A potentiometric surface map constructed from data collected on October 7, 1992 (Figure 1), shows <br /> the groundwater beneath the site flows to the north at a gradient of approximately 0 01 <br /> • <br /> t 1tic cs throughout the 15 (.unuda and t)r emeus <br />