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' • Projects requiring a Quality Level of 2 or 3 may have select duplicate samples collected in the <br /> field or replicate analysis conducted to validate the reliability of the samples <br /> • For projects involving the collection of a large number of samples from the same media, such <br /> as a soil grid, an Analysis of Variance will be conducted An Analysis of Variance may be <br /> one-way or two-way, hierarchical analysis, with or without within-cell replications The <br /> hierarchical design including the number of site duplicates and laboratory replicates is <br /> designed before sampling begins <br /> ' All field procedures and activities will be conducted in accordance with the Health and Safety <br /> Plan which will be prepared and approved for this project <br /> 3.2 Soil Sampling Procedures <br /> ' • All soil borings will be drilled by a state-licensed drilling contractor with experience in <br /> environmental projects <br /> t • All sampling equipment, hand auger, hollow-stem auger flights, drilling rods and bits, and split <br /> spoon will be thoroughly steam cleaned, and brass and stainless tubes will be cleaned in tap <br /> water, scrubbed in a laboratory grade, non-phosphate detergent solution, rinsed with tap and <br /> deionized water before and between uses to prevent cross contamination <br /> • Surface soil samples are collected as undisturbed samples encased in removable brass or <br /> stainless steel liners The liners are removed from the sampling device, covered with <br /> aluminum foil or Teflon tape and vinyl end caps and sealed with adhesive tape, if aluminum <br /> foil is used <br /> • Split spoon samples are collected in brass or stainless steel sampling tubes which are covered <br /> with aluminum foil or Teflon tape and PVC or vinyl caps The caps are sealed with adhesive <br /> tape, if aluminum foil is used, to inhibit the escape of volatile compounds <br /> Plastic, vinyl or Nitrile gloves will be worn during sampling and changed between samples <br /> All soil samples will be labeled, chilled, and processed as described in Section 3 1 All sample <br /> information will be recorded on Boring Log Forms or soil/sediment sample forms <br /> Soil samples collected for volatile organic compounds will be periodically screened, as <br /> determined by the site geologist, in the field by head space analysis Samples are placed in a <br /> clean glass container and covered with aluminum foil and covered with a screw lid A <br /> photoionization detector {PID} is used to analyze the headspace of the samples The PID will <br /> American Geological Services, Inc. <br /> ' 3 <br />