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13 <br />5.0 SAMPLE QUALITY CONTROL AND LABORATORY ANALYSIS <br />5.1 FIELD QA/QC <br /> <br />To minimize the risk of contamination during sampling, the following protocols will be <br />followed: <br /> <br />o Water sample collection will not be conducted out of the "treatment" boat (residue risk); <br />o Latex gloves will be worn during sampling; <br />o Sample container labels will be filled out with permanent ink prior to attachment to the <br />container; <br />o Sample labels will include: location, date, time of sample collection, and individual(s) who <br />performed sampling. <br />o The discrete-depth sampling device will be rinsed three times with water from the <br />sampling site before retaining the sample; <br />o Samples will be kept out of the sun and stored in a cooler with ice packs. <br />o Following the day's sampling event, the Kemmerer bottle (or equivalent) will be washed <br />inside and out with an Alconox solution (a detergent used to wash lab glassware), <br />rinsed twice, then given a final rinse with distilled water. During this process, the spigots <br />on the instrument will be open and both soapy water and rinse water passed through the <br />spigots. <br /> <br />5.2 RECORD KEEPING AND SAMPLE HANDLING PROCEDURES <br />All data collected in the field are recorded on sample field sheets. Pertinent field information <br />such as maximum depth, depth of sample, date, time of sampling and general weather conditions <br />will be recorded, along with dissolved oxygen, water and air temperature, pH, hardness, <br />electrical conductivity, and turbidity. <br /> <br />5.3 SAMPLE IDENTIFICATION PROCEDURES <br />All samples must be uniquely identified to ensure that results are properly reported and <br />interpreted. Samples must be identified such that the site, sampling location, sample date and <br />time, matrix, can be distinguished by a data reviewer or user. A suggested labeling scheme <br />would be as follows: <br /> <br />o Background sample from inside treatment area <br /> <br />o Event sample from 50-100 feet outside of treatment area <br /> <br />o Post-treatment sample from inside treatment area <br /> <br />o Post-treatment sample from outside treatment area <br /> <br /> <br />TA-l <br /> <br />EV-1 or OTA-1 <br /> <br />TA-2 <br /> <br />OTA-2 <br />6.3.A. - Page 178