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The Leadville Mill Environmental Sampling Procedures <br />Water Sample Collection <br />Page 2 -18 <br />the edge of a pit, pond, stream, or reservoir. The tubular aluminum pole or handle <br />may bow or bend if sampling is not done slowly. <br />2.9.1 SAMPLING PROCEDURE <br />1. Assemble the pond sampler and attach a decontaminated sampling container. <br />Make sure the fasteners that secure the sampling container to the clamp and <br />the clamp to the pole are tightened properly. <br />2. Wearing proper protective gear, rinse the sampling container in a <br />decontaminated sampling bucket three times with the liquid to be sampled. <br />3. Rinse a set of clean sample bottles for unfiltered samples. <br />4. Slowly submerse the pond sampler into the liquid to be sampled with minimal <br />surface disturbance. Retrieve the pond sampler from the liquid with minimal <br />disturbance. Pour liquid from full sampling container into sampling bucket. <br />Repeat Step 4. Collect 4 to 5 liters of sample, if no splits are required, and an <br />additional 4 to 5 liters, if a split or sample of the solid fraction of the liquid is <br />required. <br />5. Sampling the aqueous fraction of the liquid only. If the sample liquid contains <br />little or no solids, stir or swirl the contents of the bucket gently. Using the <br />sampling container, fill a set or sets of sample bottles (unfiltered samples). <br />6. Sampling the aqueous and solid fraction of the liquid. If the sample liquid is a <br />slurry or solution containing a large amount of suspended solids, stir or swirl <br />the contents of the bucket gently. Using the sampling container, fill a set or <br />sets of sample bottles. This sample will be filtered in the laboratory to obtain <br />the solid fraction in the liquid for analysis. <br />Allow solids in the remainder of the sample to settle to the bottom of the <br />bucket. This may take 5 to 10 minutes longer. Using the sampling container, <br />dip from the liquid fraction or upper portion of the bucket only and fill a set or <br />sets of sample bottles. This sample will be the unfiltered aqueous fraction <br />sample. <br />7. Repeat Steps 2 through 5 or 6 for each required field replicate. <br />8. Label the sample bottles with an appropriate sample tag. Label the tag <br />carefully and clearly, addressing all the categories or parameters. Be sure to <br />record the information in the logbook and complete the chain -of- custody <br />documents. <br />9. Collect sample field parameters, and Quality Control samples. <br />April 2013 <br />