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upr000045-056
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3 8 . Summary of the leakage tests and suggestions f for repairing the leaky wells Of the 42 wells listed in this report, 34 were tested to a satisfactory depth. The 8 wells not tested were caved or obstructed or for some other reason could not be tested to a depth whore leakage might be expected. The estimated total amount of underground leakage in the 34 wells tested was about 375 gallons a minute, of which about 300 gallons a minute came to the surface as springs in the vicinity of the wells. Most of the flow of 375 gallons a minute was lost from wells 7, 24, 25. The leaks from the other wells tested are small and need not be considered further. Well 7 leaks about 35 gallons a minute at a depth of about 41 to 43 feet, and the water lost from the well evidently does not come to the surface near the well. It could be repaired by pumping the wall full of clay through a small pipe to the bottom of the well and then removing the casing and setting a new string of casing to a much greater depth, and then cementing on the outside through a small pipe extending to the bottom of the casing. Well 24 leaks about 10 gallons a minute at a depth of 470 * to 495 feet, 11 gallons a minute at 402 feet, and 26 to 28 gallons v a minute at 64 feet. 'The movement of water below 400 feet probably represents water flowing into upper sands that are under lower artesian pressure. In view of the fact that about 30 gallons a