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<br />B-1.9.1 Preparation of Location <br />Prior to starting the sampling procedure, the area to be sampled should be cleared of foreign materials <br />such as brush, rocks, debris, etc. A clean (new), disposable, plastic sheet should be placed at the sample <br />location. This preparation will prevent sampling equipment from inadvertently contacting the ground. <br />B-1.9.2 Visual Inspection of Surface-Water <br />Prior to sampling, a small quantity of water will be obtained and inspected for the presence of a floating <br />film, suspended sediment, or other indications of potential contamination. Any sample odors will be <br />noted. These observations regarding odor or visual evidence of contamination will be recorded in the <br />sampling record. <br />B-1.9.3 Sample Collection <br />Grab samples are taken from surface-water bodies from either the shore or by wading into the water. A <br />bailer or long-handled cup constructed of stainless steel or Teflon can be used to collect water samples. <br />Care will be taken during sampling to prevent undue disturbance of the water. The sampler will be <br />lowered into and extracted from the water gently to prevent splashing. The sample may be poured <br />directly into the appropriate containers. While pouring water front a sampler, the water will be carefully <br />poured down the inside of the sample bottle to prevent significant aeration of the sample. <br />Unless other instructions are given by the analytical laboratory, the sample containers will be completely <br />filled so that no air space remains in the container. <br />B-1.9.4 Quality Control Samples <br />Surface-water samples will include one duplicate sample for every ten locations sampled. The decision of <br />which sample to duplicate will be made by sampling personnel. The duplicate sample will be given a <br />designation which cannot be confused with other samples to be tested and will be analyzed for the same <br />constituents as the regular samples. <br />B-1.9.5 On-Site Parameter Measurement <br />Certain chemical and physical parameters in water can change significantly within a short time of sample <br />acquisition. These will be measured on-site with portable equipment. These parameters are: <br />• pH, <br />• specific conductance, and <br />• temperature. <br />These parameters will be obtained in accordance with the field measurement procedures specified in <br />Attachment B or as directed by the equipment manufacturer. These parameters will be measured in <br />unfiltered, unpreserved, "fresh" water taken by the same technique as the samples taken for laboratory <br />analyses. The measurements will be made in a clean glass container separate from those intended for <br />laboratory analysis. The tested sample will be discarded after use. The measured values will be recorded <br />in the sampling record. <br />