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The leadville Mill Environmental Sampling Procedures <br />Water Sample Collection <br />Page 2 -6 <br />stream bed solids. If collecting a grab sample, fill a sample bottle, and add <br />required preservatives as appropriate. Secure the bottle cap tightly, then skip <br />to step No. 10. If collecting a composite sample, pour full container into the <br />bucket and take another sample from the next section of the stream. Collect <br />4 to 5 liters if a split is required. <br />5. Stir or swirl the contents of the bucket gently. Using the sampling container, <br />fill a set or sets of sample bottles (unfiltered samples). <br />6. Add preservatives to metals' samples as appropriate. Secure the sample <br />bottle cap tightly. <br />7. Empty bucket and repeat steps 3 through 7 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. Properly clean and decontaminate the sampling equipment. <br />2.4 SAMPLING, PRESERVATION & CONTAINERIZATION <br />This procedure describes the techniques and quality control measures used to <br />sample, prepare, and handle water subject to the analyses listed below. <br />• Acidity and Alkalinity; <br />• Bicarbonate /Carbonate; <br />• Chloride; <br />• Fluoride; <br />• Hardness; <br />• Metals (Ag, Al, As, Ba, Be, Cd, Co, Cr, Cu, Pb, Mn, Mo, Hg, Ni, Se, Sb, Zn); <br />• Nitrate; <br />• Silica; <br />• Solids (Total dissolved solids (TDS), total suspended solids (TSS)); <br />• Sulfate; <br />Sample containers are assumed to be pre - cleaned by the laboratory prior to <br />shipment to the site. If pre - cleaned sample containers are not available at the time of <br />sampling, follow additional container preparation procedures below. <br />April 2013 <br />