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bedrock monitoring wells, ditches, streams, rivers or naturally <br />occurring runoff from gulches and draws. <br />Base line data for the alluvial wells MW -1, MW -2 and MW -3 <br />are included in Exhibit 3 Baseline Water Monitoring Data. <br />Field parameters for groundwater are depth to water level, pH, <br />conductivity and temperature. If surface water monitoring <br />points are added to this monitoring plan, field parameters for <br />surface water will be flow, pH, conductivity and temperature. <br />Equipment and methods used to measure the field parameters <br />include: <br />pH - A Cole Parmer pocket-size tester (pH Tester II). Range - <br />1.0 to 15.0 pH. Resolution: 0.1 pH. Accuracy: +/- 0.1 pH. <br />Temperature compensation: automatic 0 to 50" C. Calibration: <br />1, 2 or 3 point. <br />Conductivity - Two Cole Parmer pocket-size microprocessor - <br />controlled testers with different range capabilities (TDS Tester <br />10 and TDS Tester 20). Accuracy: +/- 2% FS. Temperature <br />conmpensation: automatic 0 to 50" C. Operating temperature: <br />0 to 50" C. Range 0 to 1,990 and 2,000 to 19,900 umhos/cm. <br />Depth to Water - A Water Level Indicator (M -Scope) is used to <br />measure depth to water. The cable is marked in 5 -foot <br />increments. A tape measure is used to determine accurate <br />distances between marked increments. <br />Temperature - A standard mercury thermometer which <br />measures temperature in degrees Celsius and a Cole Parmer <br />microprocessor -controlled tester (Temptester). Range: -28 to <br />150° C. Resolution: 10 C. Accruacy: +/-1 % FS. <br />Dissolved oxygen - Horiba Model U-7, membrane type with <br />automatic temperature compensation to 0 to 400 C, galvanic <br />cell 0 to 20 ppm +/- 1.0 ppm. <br />The electronic water monitoring instruments may vary. <br />However, the stated accuracy of the instruments will be equal <br />to or greater than that listed above. <br />RN -07 2.05-40 02/18 <br />