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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> MONITORING AND REPORTING PROGRAM NO. <br /> FOR <br /> RMC LONESTAR <br /> UNCLASSIFIED LANDFILL <br /> SAN JOAQUIN COUNTY <br /> GROUND WATER MONITORING <br /> The following detection monitoring program shall be implemented at the facility. The monitoring <br /> network shall consist of a"background"monitoring well and at least two downgradient monitoring <br /> wells. The monitoring wells shall be installed in accordance with the time schedule listed in <br /> Provision C. 16. The proposed locations of these wells will reviewed by the Board. Samples from <br /> all monitoring wells shall be sampled on a semiannual basis. Ground water samples shall be <br /> analyzed for the following parameters and constituents <br /> Report in <br /> Parameter/Constituent Units of <br /> Specific Conductance(field) µmhos/cm <br /> pH (field) pH units <br /> Total Organic Carbon mg/l <br /> Total Dissolved Solids mg/l <br /> Chloride mg/l <br /> Sulfate mg/l <br /> Dissolved Irons mg/1 <br /> Carbonate mg/l <br /> Bicarbonate mg/l <br /> Alkalinity mg/1 <br /> Nitrate (as N) mg/1 <br /> Sulfides (including H2S) presence or absence <br /> 1 Inductively Coupled Argon Plasma Atomic Emission Spectroscopy (ICAP) may be used <br /> for analysis of these constituents only. <br /> The ground water surface elevation (in feet and hundredths, M.S.L.) in all wells shall be measured <br /> on a semiannual basis and used to determine the velocity and direction(s) of ground water flow. <br /> This information shall be displayed on a water table contour map and/or ground water flow net for <br /> the site. <br />