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MONITORING AND REPORTING PROGRAM -4- <br /> SOUTHWEST HIDE COMPANY <br /> SURFACE IMPOUNDMENT CLOSURE <br /> SAN JOAQUIN COUNTY <br /> Field and laboratory tests shall be reported in the quarterly monitoring reports. <br /> Electrical Conductivity results shall be submitted on a site contour map. All <br /> parameters shall be graphed so as to show historical trends at each well . <br /> Monitoring wells are numbered 1 through 7, 7A, 7B, 8 through 12 and 14 through <br /> 20. Well 4 is about on-half mile offsite and was installed as a background well . <br /> Wells 7, 7A and 7B were installed to depths of 30, 70 and 140 feet below grade, <br /> respectively. Well 20 is a deep well completed to a depth of 205 feet below <br /> grade. All other wells are at a depth of 30 feet below grade or less. <br /> Water Levels <br /> The ground water surface elevation (in feet and hundredths, M.S.L. ) in all wells <br /> shall be measured on a quarterly basis and used to determine the velocity and <br /> direction of ground water flow. This information shall be displayed on a water <br /> table contour map and/or ground water flow net for the site and submitted with <br /> the quarterly monitoring reports. <br /> The Discharger shall implement the above monitoring program on the effective date <br /> of this Order. <br /> Ordered by <br /> WILLIAM H. CROOKS, Executive Officer <br /> (Date) <br />