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MONITORING AND REPORTING PROGRAM -3- <br /> PACIFIC GAS AND ELECTRIC <br /> MCDONALD TRACT <br /> SAN JOAQIUN COUNTY <br /> of the ponds. and wells MW-4 and MW-7 are hydraulically upgradient of Pond 3, as <br /> shown on Attachment B. <br /> GROUND WATER MONITORING PROGRAM <br /> Parameter Units Frequency <br /> EC µmhos/cm Semi-annual <br /> pH pH units Semi-annual <br /> Chloride mg/L Semi-annual <br /> Barium mg/L Semi-annual <br /> Sodium mg/L Semi-annual <br /> Sulfate mg/L Semi-annual <br /> TDS* mg/L Semi-annual <br /> * A conversion factor between EC and TDS shall be established as part of the corrective action monitoring <br /> program. <br /> E. WATER QUALITY PROTECTION STANDARD <br /> The Water Quality Protection Standard(Standard) consists of the following elements: <br /> a. Constituents of Concern; <br /> b. Concentration Limits; <br /> c. Monitoring Points; <br /> d. Points of Compliance; and <br /> e. Compliance Period. <br /> Each of these is described as follows: <br /> 1 . Constituents of Concern <br /> The 'COC list' (list of Constituents of Concern required under 23 CCR 2550.3) shall <br /> include all constituents listed in this Monitoring and Reporting Program, and the Waste <br /> Discharge Requirements No. <br />