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i <br />• Mr Brian Cobb <br /> April 19, 1995 <br /> Page 2 <br /> Summary of Findings <br /> Field data collected during the sampling event indicate groundwater elevations have increased <br /> relative to last quarter Groundwater is flowing to the west-southwest, under an average <br /> gradient of approximately 0 005 feet per foot Analytical laboratory results show a slight <br /> increase in petroleum hydrocarbon constituents in the samples collected from wells MW-1, <br /> MW-7 and MW-S; all other wells showed no significant change in concentration A summary <br /> of the depth-to-water measurements, calculated groundwater elevations, and analytical results <br /> are included in Table 1 A groundwater contour map, identifying the primary groundwater <br /> flow direction on March 16, 1995 and the analytical results, is included as Figure 1 Field <br /> notes, the chain-of-custody form and the laboratory data sheets are included in Attachment A <br /> If you have any question regarding the information presented herein, please contact one of <br /> us at your earliest convenience <br /> Sincerely, <br /> BROWN AND CALDWELL <br /> Todd Miller <br /> Project Manager <br /> 'ZI M'W�� <br /> Pat G. Cullen <br /> California Registered Geologist No 4932 <br /> TM/PC/lkg <br /> Attachments <br /> cc Mr John Reeves, Attorney at Law <br /> Ms Linda Turkatte, San Joaquin County Public Health Services Department <br /> OuuNAE1LRM15674QTRLYRPn1OD9W1Sr 1995 VM <br /> "PLaxrW <br /> Brown and Caldwell <br /> Col isUtants <br />