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SAMPLING PROTOCOL <br /> Page: 2 <br /> used. <br /> The cuttings from the drilling operation will be <br /> containerized in plastic 55-gallon drums and stored on-site <br /> for later treatment and/or disposal. The treatment/disposal <br /> will remain the responsibility of the client unless other <br /> arrangements have been made. It is intended that the <br /> cuttings be incorporated into the soil treatment program and <br /> abandoned in place after treatment. <br /> WELL CONSTRUCTION AND DEVELOPMENT <br /> All materials used in well construction will be <br /> thoroughly cleaned prior to introduction into the boring. <br /> A 2 *o-&' inch OD well casing (PVC) with and end cap, factory <br /> perforated for placement into the saturated zone, will be <br /> placed in the boring. The perforated interval shall extend <br /> ten feet below and five feet above the saturated zone. The <br /> casing and end caps will be threaded, no PVC cement will be <br /> used. The filter pack will extend two feet above the <br /> perforated zone. A seal of bentonite granules two feet thick <br /> will be placed in the annular space above the filter pack, <br /> followed by a bentonite slurry to grade. All filter pack and <br /> well seals will be tremiied thr�ugh the auger as necessary. <br /> A locking cap will be placed on top of the well casing <br /> inside a water-tight well box cemented into place. All wells <br /> will be labeled on the exterior of the well head containment <br /> structure with well type and identification number. On the <br /> interior, the label will contain well type, identification <br /> number, depth, and the perforation interval. Monitoring <br /> wells will be developed by airlifting with compressed <br /> nitrogen, pumped using suitable pumping equipment or bailed <br /> until clear water is removed. Water removed from the well <br /> during development and subsequent evacuations will be <br /> contained within 55-gallon drums for later treatment and/or <br /> disposal. <br /> SAMPLING <br /> All soil and groundwater samples will be properly <br /> labeled with project number, date collected, and sample <br /> identification number. All samples will be handled using <br /> standard chain of custody procedures. Field records will <br /> document the above information and other significant data, <br /> such as names of on-site personnel, sampling methods, date <br /> and time of sampling, the number of well volumes removed <br /> before sampling, and any preservatives added or filtration <br /> performed on samples. <br /> The samples will be refrigerated and packaged <br />