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a r bridging fines within the ::lot.•_ r �inj synd pFjck. Thi:; will Le dor',- by ctargin� rasing tie jrl ] wn-r,-r i pvFsiblr, if not thenonly potahle water may by used. A log of the arttount of introduced water will ba kept and its use will be kept to a minimum, P;iling and surging will continue, until the water does not contain any fine silt and or clay. All purged water will be stored in drums, the drums will be sealed and left oil site until the condition of the water- is assessed. Sampling Protocol: Soil Core samples will be taken every 5 feet for the entire depth of the well. Ever;r effort 'vial be made to obtain a core sample within the capillary fringe. The blow counts for the samples will be logged, Soil samples will be obtained from the core samples taken every 5 rest during drilling. A split spoon sampler with brass sleeves will be used. The samples will remain within the brass sleeve covered with aluminum foil, and capped with the plastic caps which are supplied with the sleeves. The plastic cap will be taped to the brass sleeve using duct taps so that an air tight seal is obtained. Samples will be marked and placed in a cooler of ice until they are turned over to the laboratory, which should be within 48 hours of the drilling?. A Chain of Custody will be filled out by the sampler. The split spoon sampler and the brass sleeves will be decontaminated before each sampling event. They will be washed with Tri-sodium phosphate detergent and water and rinsed thoroughly with clean water. Core samples will be measured with a OT*A meter and the readings will be recorded on the drill. log?. These readings will be used to help select the cores to be sent for laboratory analysis. A raiEiirnum of three core samples will be sent for analysis. Cine of these samples will be from the capillary fringe. Also, if possible, one sample will be sent which is thought to be free of contaminant and one that is thought to be contaminated. One sample will be sent for at least every 15 feet of drilled hole above the water table. If the water table is at lO feet or less then only ? samples will he taken and analyzed. Water The equipment used to withdraw water frr-,i» the well will be 2 PVC hni.lt-rs. One hailer will bra used to purge the well and the rather will br used to withdrrtw the sample, All equipment including the bailer:_„ and bailing cord., and the writer depth me: %surfing; devise mu:,t be decontarninated prior to entering any well. ThFY•y will lie decontaminated by washing with detergent and water and thoroughly rinsing them with clean water.