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three stage filter will be used to clean the air of compressor fluid and <br />vapors prior to entering the well. Air surging development will be <br />accomplished by lowering a 1/2-inch PVC pipe into the monitoring well. The <br />pipe will be hooked up to a 2-inch pipe "T", which allows direct evacuation of <br />the well. The inner pipe is connected through the "T", which is connected to <br />the air compressor. The air from the compressor is passed through the filter <br />down the air line and the well is pumped by the air lifting the water out of <br />the well. The wells will be evacuated by pumping the well for a brief period, <br />and the the air is shut off to allow formation water to flush the screen and <br />filter, which forces any of the loose fine-grained material into the well <br />which in turn is air lifted out. This on-off surge cycle will be continued <br />until the discharged water is relatively free of slit and other fine-grained <br />material in accordance with accepted guidelines (U.S. Water and Power <br />Resources Service, 1981). Some of the shallow wells may require development <br />by means of hand bailing. In this case, a PVC bailer and a hemp or uncoated <br />cotton rope will be used to purge water from the well.