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Newmont M CRIPPLE CREEK & VICTOR <br /> PO Box 191 <br /> 100 N.CRIPPLE CREEK&VICTOR Victor <br /> 8086Street <br /> Victor CO 80860 <br /> with field level risk assessment form. <br /> 2. With well location determined to be safe, complete a visual inspection of well <br /> vault / monument, casing, site condition and if a dedicated pump is present <br /> Upon arrive at the well site, complete a visual inspection of well vault / <br /> monument, casing, site condition and if a dedicated pump is present <br /> 3. Measure the static water level in the well and record measurement listed as <br /> (depth to water). Water levels should be measured with a precision of+ 0.01 <br /> foot. <br /> 4. Decontaminate water level meter after use. <br /> 5. You may calculate the volume of water in the well to aid in the purging process, <br /> there is no required purge volume for the EPA low flow sampling standard, it <br /> is based on parameter stabilization. <br /> a. 2in = 617m1/ft <br /> b. 4 in = 2470 ml/ft <br /> 6. Connect tubing to sampling port on monument/well vault. <br /> 7. Attach the discharge tubing to the bottom port on the YSI water quality meter <br /> • flow cell. <br /> 8. Connect the pump to the controller with the cord provided <br /> 9. Start generator, allow it to warm up. <br /> 10. Connect controller box to generator with power cord provided. <br /> 11 . Turn pump controller on and begin to purge water. <br /> a. When flow is present adjust flow rate by using the up and down arrow <br /> buttons. <br /> b. Attempt to maintain a flow rate of to 0.1 to 0.5 L of water per minute <br /> and generally speaking not to exceed 1 L per minute. <br /> c. Use 1 L vessel and stop watch to measure flow rate and record. <br /> 12. Begin to record parameters and draw down to monitor stabilization every 3 to <br /> 5 minutes, including; <br /> a. pH <br /> b. Specific conductance <br /> c. Dissolved Oxygen <br /> d. Temperature <br /> e. Turbidity <br /> f. Oxidation/Reduction Potential <br /> 13. Continue to monitor purge flow rate. <br /> • 14. While the well is purging, compile and label sample bottles. <br /> 15. Three successive parameter readings must be within the following tolerances <br /> Department THIS DOCUMENT IS UNCONTROLLED IN HARD COPY FORMAT Doc Id: <br /> SIR Date of This Issue--/--/-- Date of Next Review:--/--/-- Page 59 of 73 <br />