Laserfiche WebLink
Y � Problem Assessment Report November 20, 1990 <br /> Fire Engine Company No. 2, Stockton, California AGS 38009-2 <br /> The depth to water in each monitoring well was periodically measured to evaluate the <br /> elevation of the groundwater surface, the inferred direction of groundwater flow, and the <br /> ground-water gradient beneath the site. The depth to ground water was converted to <br /> elevation relative to mean sea level by assigning the approximate elevation of the site (15 <br /> ® feet above mean sea level, as indicated on the U.S.G.S'Topographic Map, Plate P-1)to the <br /> top of the casing in well MW-4;this point was used as a common datum for other elevation <br /> measurements at the site. The depth to water was combined with the elevation of the top <br /> 0 of the well casing, using methods outlined in Appendix B. to evaluate the ground-water <br /> gradient and direction of groundwater flow. <br /> o <br /> The depth to ground water and elevation of ground water in each well are shown in Tabie <br /> 6. The ground-water gradient and flow direction were evaluated using wells MW-1 through <br /> 6* M«-3_in December 1988,February, and March 1990. 'The groundwater gradient and flow <br /> direction were evaluated using wells MW-1 and MW-4 four times since May 1990 (Table <br /> 7). Groundwater surface maps for each date are presented in Plates P-24A through P-24C. <br /> w <br /> to <br /> 16 <br /> Applied GeoSystems -� <br />