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r <br /> Nations Groundwater .Associates <br /> HYDROGEOLOGISTS&GEOLOGISTS -- <br /> RECEIVED <br /> May 19, 1997 MAY 2 2 1997 <br /> Mr Kenneth Earnest JUN 0 2 <br /> Ultramar Inc 1997 <br /> 525 West Third Street ENVIRONMENT <br /> Hanford, California 93232-0466 pERM1T/SERV CES�� <br /> Subject First Quarter 1997 Gr6undwater Monitoring Report <br /> Beacon Station #419 <br /> 2350 Waterloo Road, Stockton, California <br /> Dear Mr Earnest <br /> This report docum9nts the results of quarterly ground-water monitoring conducted oMarch 27, 1997 <br /> at the subject site (Figure 1) The monitoring included measurements of depth to graun -water, <br /> subjective analysis for free product, ground-water purging and collection of ground-water samples All <br /> field activities pertaining to events in this report were conducted according to the Ultramar Field <br /> Procedures included in the Attachments <br /> GROUNDWATER ELEVATIONS <br /> Prior to purging, Doulos Environmental personnel collected depth to ground-water measurements <br /> Ground-water level data from July 1994 to-date are summarized in Table 1 On the basis of the current <br /> measurements, ground-water flow vanes across the site from the so west to the east (Figure 2) at a <br /> gradient of approximately 0 02 Ground-water levels have increased an average of approximately <br /> 7�t compared to the last monitoring event <br /> P.O. Box 276325 Sacramento,Cahfornia 95827-6325 (916)361-8095 <br /> (916)361-8096 FAX 6v <br />