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Water Sampling and Measurement Techniques <br />Field conductivity and pH meters were calibrated prior to each day of <br />use. The conductivity meter is calibrated using a potassium chloride <br />solution with an electrical conductivity in the 1,000 to 4,000 umbos/cm <br />range. The pH meter is calibrated using NBS traceable buffers with pH <br />values of 7 and 10. Water level measurements are taken with a water <br />level indicator or directly from a steel tape. <br />Table 1 (Appendix A) lists the surface water parameters used for all <br />stream sites. Table 2 (Appendix A) lists the groundwater parameters used <br />for all wells. ACZ Laboratory in Steamboat Springs, Colorado performs <br />analyses by EPA or equivalent methods. Samples are delivered to the lab <br />on the day of collection in an iced cooler. <br />5 <br />