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<br />1 <br />6.0 RECOMMENDATIONS <br />' During an SMI inspection of the well on April 14, 1997, it was observed that the upper portion of <br />' the water column contained precipitated iron and had a chlorine odor. SMI recommends that this <br />water be flushed from the well. This may be accomplished as follows: <br />' 1. Fill a water truck. <br />I, , 2. Operate the well pump and dischazge water at the fire station. <br />' 3. With the pump operating, drain (clean) water from the truck down into the well casing. <br />' 4. Continue until as least several thousand gallons have drained into the well casing, <br />Because of the pitless adapter at the top of the casing, a drop pipe cannot be installed in the well <br />' to permit access for awater-level probe. Lowering a probe without an access pipe is risky <br />because it may become entangled in the pump electrical cable. Without water-level <br />measurements, it will be difficult to determine if future pumping water levels aze reaching the <br />' pump intake, which may cause premature pump failure. To alleviate this concern, SMI <br />recommends that aphase-sensing pump shut-off unit be installed on the electrical cable in the <br />' vault neaz the abandoned water well. If the water level reaches the pump intake, the change in <br />phase will cause the pump to temporarily shut down which will alert the operator to the problem. <br />' The cause of the low pumping level can then be evaluated before the pump is seriously damaged. <br />Pump shut-off units aze available from several manufacturers and should be readily adaptable to <br />' the existing electrical circuits. <br />t <br /> <br /> <br />11 <br />Industrial Water Well Completion Repart <br />~~ P:113-1031TEXT-3.DOC <br />9 <br />Shepherd Miller, /tic. <br />June f0, 1997 <br />