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3. The borehole will be drilled using a truck-,,anted hollow-stem auger drilling rig. Soil samples will be collected at 10-foot vertical intervals using a split barrel drive sampler towered through the hollow-stem auger. Samples frgm each depth will be retained in three 6-inch long brass tubes. The lower sample tubes will be retained for visual inspection and field testing for volatile organic vapors using a photoionization detector(PID)_ 3.3 WELL COMPLETION AND DEVE)1�OPMENT 1. The monitoring Well will be completed to a depth of approximately 110 feet, depending on the depth to first ground water. The well will be constructed of 2-inch-diameter Schedule 40 polyvinyl chloride (PVC)casing with flush threaded connections. The well will be constructed by installation of perforated casing (0A1-inch machine cut slots) from a depth of approximately 10 feet above the top of the ater to a depth of 10 feet into the saturated zone. Blank casing will be installed frons the grou d surface to the perforated interval. The annulus will be sandpacked with Grade 212 sand pliced to 3 feet above the top of the perforated casing. A bentonite seal, approximately 5 feet thick, will be placed on top of the sand filter pack and the remaining annular space will be sealed with neat cament/bentonite slurry mix. The well head will be completed by installation of a traffic cover and a locking well cap_ 2. After completion of MW-1, the elevation o the well top will be surveyed relative to a known local benchmark. 3. As this is a"clean" site, soil cuttings produced during drilling and water generated from auger steam cleaning will be spread out and left onsite. Water from development and purging of the well will also be discharged onsite_ 4. After completion, the well will.be developed using surge and/or pumping techniques for a minimum of three well volumes or until temperature, pH and conductivity stabilize. Water samples will be collected using a clean disposable bailer and analyzed for the following parameters: • Volatile Organic Compounds-EPA Method 8260 • Extractable Fuel Hydrocarbons- modified EPA Method 8015(d) Chemical Oxygen Demand (COD)-EA Method 410.4 • Nitrate-EPA Method 300.0 l . I 3 �RC CutaomerFocwed Sofutlons 80 'd VV:Vi 00, zz InE