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• <br /> MONITORING AND REPORTING PROGRAM -2- <br /> CLOSURE AND POST CLOSURE MAINTENANCE <br /> JOHNS-MANVILLE MANUFACTURING COMPANY, INC. <br /> SURFACE IMPOUNDMENTS AND UNCLASSIFIED LANDFILLS <br /> SAN JOAQUIN COUNTY <br /> WATER QUALITY MONITORING PROGRAM <br /> REPORTING <br /> Field and laboratory tests shall be reported in the semi-annually monitoring reports. All <br /> parameters shall be graphed so as to show historical trends at each well. <br /> The ground water surface elevation (in feet and hundredths, M.S.L.) in all wells shall be <br /> measured on a semi-annually basis and used to determine the velocity and direction of ground <br /> water flow. This information shall be displayed on a water table contour map and/or ground <br /> water flow net for the site and submitted with the semi-annually monitoring reports. <br /> The following detection monitoring program shall be implemented at the facility to determine <br /> compliance with the "water quality protection standards". <br /> GROUND WATER MONITORING <br /> LOCATIONS <br /> The monitoring network shall consist of a background monitoring well, MW-1, and three <br /> downgradient monitoring wells, MW-2, MW-3, and MW-4, shown in Attachment A. Wells <br /> MW-2, MW-3, and MW-4 shall constitute the "points of compliance" with respect to ground <br /> water. Locations of these wells are shown on Attachment B. <br /> FREQUENCY <br /> Samples shall be collected from all wells and analyzed as specified in Table I. <br /> PARAMETERS <br /> Ground water samples shall be analyzed for the monitoring parameters shown in Table I. <br />