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� » / � � / SAMPLING PROTOCOL Page: 2 ' ` . , ` used. � The cuttings from the drilling operation will be Y ' containerized in plastic 55-gallon drums and stored on' for later treatment and/or disposal. The treatment/disposa l i will remain the responsibility of the client unless other arrangements have been made. It is intended that the | cuttings be incorporated into the soil treatment program and . abandoned in place after treatment. � � WELL CONSTRUCTION AND DEVELOPMENT � All materials used in well construction will be . thoroughly cleaned prior to introduction into the borihg. ' A 2 well casing (PVC) with and end cap, fx�ctory perforated for placement into the saturated zone, willl' be placed in the boring. The perforated interval shall e5itend . ten feet below and five feet above the saturated zone. 'T The � casing and end caps will be threaded, no PVC cement will be used. The filter pack will extend two feet above the .� perforated zone. A seal of bentonite granules two feet thick will be placed in the annular space above the filter, pack, followed by a beritonitew-RIUrry to grade. All filter pack and well seals will be t gh the auger as necessary. A locking cap will be placed on top of the well casing � inside a water-tight well box cemented into place. All wells will be labeled on the exterior of the well head containment structure with well type and identification number. On� the ! interior, the label will contain well type, identification � . number, depth, and the perforation interval. Monitoring . wells will be developed by airlifting with compressed | nitrogen, pumped using suitable pumping equipment or bailed until clear water is removed. Water removed from the we1l during development and subsequent evacuations will be l � contained within 55-gallon drums for later treatment arid/or disposal. � SAMPLING ^ � ' All soil and groundwater samples will be prcperly^ labeled with project number, date collected, and sample^ identification number' All samples will be handled using standard chain of custody procedures. Field records will document the above information and other significant data, such as names of on-site personnel, sampling methods, date and time of sampling, the number of well volumes removed � before sampling, and any preservatives added or filtration performed on samples. �| The samples will be refrigerated and packaged � ;