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Wim, Einvironmental Consultants, Inc, <br /> Sampling Protocols <br /> Page: 2 <br /> The cuttings from the drilling operation will be containerized on-site during; drilling <br /> for proper disposition. The proper method of disposal will be dependent upon <br /> results of laboratory analysis. this disposal will be the responsibility of the. client <br /> unless other arrangements have been made. <br /> Well Construction <br /> All materials used in ;veli construction will be thoroughly cleaned prior to intro- <br /> duction into the boring. A bentonite or cement and bentonite grout will be placed at <br /> the bottom of the boring as necessary. After the seal has been allowed to set long <br /> enough to support the weight of the casing, a two-inch (2") diameter well casing <br /> (PVC) with end cap and factory perforations for placement in the saturated zone <br /> (taking into account seasonal variation) will be placed in the boring. The screen and <br /> filter pack sizes will be as noted in the well construction drawing. The casing and <br /> end caps will be threaded or joined by stainless steel screws; no PVC cement will <br /> be used. The filter pack will extend two feet (2') above the perforated zone. A <br /> bentonite seal two to three feet (3') thick will be placed in the annular space above <br /> the filter pack followed by a cement grout to the surface. Seal and filter pack <br /> elevations may change based on the underlying geology. <br /> Well Development and Smnpling <br /> The well will be developed until the weii water appears clear of sediment and the <br /> appropriate number of well volumes (based upon the judgement of the responsible <br /> professional) have been evacuated. The water produced during well development <br /> will be containerized and left on-site in 55-gallon drums or other suitable containers <br /> for disposal as hazardous waste if deemed necessary upon receipt of laboratory <br /> results. Disposal will be the responsibility of the client unless other arrangements <br /> have been made. <br /> All soil and ground water samples will be properly labeled with date collected <br /> project number, sample coordinator, and sample identification. All samples will be <br /> identified with job number-year-borehole-depth/monitoring well-hour. Field records <br /> will document the above information and other significant data such as names of <br /> on-site personnel,__sampling_methods, date and time of sampling, the number of <br /> Y well volumes removed before sampling, preservatives a t any , an any <br /> filtration performed on samples. <br />