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REVISED MONITORING AND REPORTING PROGRAM NO. 5-01-148 -3- <br /> NEENAH PAPER FR, LLC <br /> NEENAH PAPER MILL <br /> SAN JOAQUIN COUNTY <br /> Constituent Units Sample Type Sampling Frequency <br /> pH pH Units Grab Weekly <br /> Specific pmhoslcm Grab Weekly <br /> Conductivity <br /> TDS mgll Grab Weekly <br /> Freeboard feet - - Monthly <br /> Standard mg/l Grab Annually <br /> Minerals <br /> The exposed portion of the basin shall be inspected monthly. Monthly inspection <br /> reports shall be included in each semiannual monitoring report and shall include a <br /> description of the condition of the wastewater management facilities and any <br /> changes in appearance from the previous month. <br /> E. GROUNDWATER MONITORING <br /> 1. Groundwater Elevation <br /> The water level in each monitoring well shall be measured quarterly <br /> consistent with Title 27, Section 20415(e)(15). Data from water level <br /> measurements shall be used to construct groundwater contour maps showing <br /> the direction of groundwater flow in the uppermost aquifer beneath the site. <br /> The elevation contour maps shall be constructed using feet above mean sea <br /> level. The groundwater gradient shall also be computed. <br /> 2. Corrective Action Monitoring <br /> The following shall constitute the groundwater corrective action monitoring <br /> program: <br /> a. Semiannual Sampling <br /> Monitoring Points: Wells OBs-1 through -28, TH-1, TH-2, TH-4 through <br /> TH-11, M-19-C, and PW-4. <br /> Constituents: TDS, chloride, sulfate, nitrate, and sodium. <br /> b. Annual Sampling <br /> Monitoring Points: Wells OBs-1 through -28, TH-1, TH-2, TH-4 through TH- <br /> 11, M-10-C, M-11-C, and PW-4, PW-5, PW-6, PW-7, and PW-8. <br /> Constituents: TDS, electrical conductivity, pH, chloride, sulfate, nitrate, <br /> sodium, calcium, magnesium, potassium, bicarbonate, and carbonate. <br /> All wells shall be field monitored for pH, Electrical Conductivity, and turbidity <br /> during the above sampling events. For wells for which annual and semiannual <br /> monitoring are specified for the same constituent, annual monitoring may be <br /> conducted as one of the semiannual events. Laboratory concentrations for <br /> inorganic parameters shall be reported in milligrams per liter. <br />