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The Leadville Mill <br />Environmental Sampling Procedures <br />Sampling Protocols <br />Page 1 -7 <br />TABLE 1 -2: DECONTAMINATION EQUIPMENT, SOIL SAMPLING <br />Station 1 <br />Station 2 <br />Station 3 <br />Phosphate -Free Detergent <br />Plastic Tub <br />Plastic Sheeting (or Garbage Bag) <br />Plastic Tub <br />DI /DS Water <br />- <br />Clean Potable Water <br />Clean Potable Water <br />- <br />Scrub Brush <br />0.1 Normal Nitric Acid <br />DI /DS Water <br />I - <br />The specific procedures for decontaminating soil sampling equipment include: <br />1. At Station No. 1, first wash the contaminated equipment in a tub containing <br />clean, potable water to remove the residual soil material. Follow with a <br />second wash in a tub containing water mixed with a phosphate -free industrial <br />strength soap such as Liqui -Nox. <br />2. Move the equipment to the wash tub in Station No. 2. Rinse the equipment <br />with clean, potable water. If high concentrations of metals are anticipated or <br />encountered, rinse the equipment with dilute (0.1 Normal) nitric acid (HNO3) <br />and follow with two more rinses using DI /DS water. <br />3. At Station No. 3, place the clean equipment on plastic sheeting until it is used <br />again. Soil sampling equipment that will not be used immediately shall be <br />wrapped in clean plastic. <br />1.4.2 PROCEDURES USED TO DECONTAMINATE WATER SAMPLING EQUIPMENT <br />The following decontamination procedure shall be utilized for inorganically <br />contaminated water sampling equipment. If the sample will not be analyzed for trace <br />metals, the nitric acid wash may be skipped. Table 1 -3 lists the equipment that shall <br />be used to decontaminate water sampling equipment. <br />TABLE 1 -3: DECONTAMINATION EQUIPMENT, WATER SAMPLING <br />Station 1 <br />Station 2 <br />Station 3 <br />Phosphate -Free Detergent <br />Plastic Tub <br />Plastic Sheeting (or Garbage Bag) <br />Clean, Potable Water <br />DI /DS Water <br />- <br />Plastic Tub <br />Dilute (1:1) Nitric Acid <br />- <br />Scrub Brush <br />DI /DS Water <br />The specific procedures for decontaminating water sampling equipment include: <br />April 2013 <br />