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Newmontr.. CRIPPLE CREEK & VICTOR <br /> PO Box191 <br /> CRIPPLE CREEK&VICTOR 100 N.3rd Street <br /> Victor CO 80860 <br /> of each other in order to collect samples. <br /> a. pH (+/- 0.1) <br /> b. Specific Conductance (3%) <br /> c. Dissolved Oxygen (10%for values greater than 0.5 mg/L, if three Dissolved <br /> Oxygen values are less than 0.5 mg/L, consider the values as stabilized) <br /> d. Turbidity (10% for values greater than 5 NTU; if three Turbidity values are <br /> less than 5 NTU, consider the values as stabilized), <br /> e. Temperature (3%) <br /> f. Oxidation/Reduction Potential (+/- 10 millivolts) <br /> 16. If the drawdown has exceeded 0.3 feet and stabilizes, calculate the volume of <br /> water between the initial water level and the stabilized water level. Add the <br /> volume of the water which occupies the pump's tubing to this calculation. This <br /> combined volume of water needs to be purged from the well after the water <br /> level has stabilized before samples are collected. <br /> a. Volume calculations and equations found in Appendix F <br /> 17. Upon stabilization of parameters collect samples in pre labeled and pre <br /> • preserved bottles, when possible following this general order; samples should <br /> be collected without passing thought YSI flow cell. <br /> 18. To collect filtered samples; <br /> a. Attach filter to sample tube. <br /> b. Allow sample to saturate and to flow through filter (approximately 200 <br /> mL). <br /> c. Collect filtered sample in sample bottle labeled for filtration. <br /> 19. Place samples in cooler on ice. <br /> 20. Turn off pump at pump controller box, remove power cord from pump, unplug <br /> controller from generator. <br /> 21 . Clean-up site and move to next location <br /> Chain-of-Custody and Sample Shipment <br /> A chain-of-custody (COC) is a procedure designed to allow the operator to <br /> reconstruct how and to whom the sample is transferred. <br /> 1. Upon preparing samples for shipment, the sampler should complete a COC. <br /> 2. Ensure all bottles are labeled with the correct time, date, analyte, preservative, <br /> required filtration, and location of the sample by comparing to field notes. <br /> • 3. List sample location, date, time, field parameters, number of containers, types of <br /> preservatives present and the requested analytes on the chain of custody form, <br /> Department THIS DOCUMENT IS UNCONTROLLED IN HARD COPY FORMAT Doc Id: <br /> SER Date of This Issue--/--/-- Date of Next Review:--/--/-- Page 60 of 73 <br />