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INTERNATIONAL TECHNOLOGY CORPORATION The bottom of each well was fitted with threaded bottom cap The top of each well was secured with a locking plug cap The gravel pack consists of clean #2/16 Lonestar sand The gravel pack extends to just above the screen A two-foot bentonite seal was placed over the gravel pack The well was then sealed to the surface with a 95% portland cement and 5% bentonite grout A tamper resistant well cover was placed over the well 3.4 WELL DEVELOPMENT The wells were developed on December 12, 1991, initially by surging the wells utilizing a 2 inch surge block followed by purging five well volumes of water All groundwater removed from the well, as well, as decontamination liquids were containerized pending ' characterization and proper disposal The well were considered developed when measurements of temperature, conductivity, and pH stabilized and when the water was relatively free of suspended material 3.5 WELL SAMPLING The wells were sampled on December 12, 1991 Water level measurements were made using a Solinstm' brand water level indicator (Table 1) No free product was observed during drilling or sampling Each well was purged of three well volumes of groundwater utilizing a Voss Technologies disposable bailer A water sample was collected when the water reached at least 80 percent of its initial level Measurements of temperature, conductivity, and pH were collected and recorded to verify well stabilization Sampling forms are included in Appendix D Groundwater was sampled using a new Voss Technologies disposable bailer The water samples were placed in appropriate bottles supplied by the laboratory Care was taken that no headspace was left in bottles which were analyzed for volatile organic compounds Once the samples were collected, the bottles were placed in "zip-loc" bags and sealers with security tape The samples were stored in a refrigerated ice chest until delivery to the laboratory In addition to the groundwater samples, a quality assurance field blank was collected and analyzed in the same manner as the other samples The field blank consisted of filling 7