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<br />.~ <br />~. <br />minute. Inflows have decreased considerably since this time to 0.2 gallons per minute, <br />measured directly below the shaft, as reported in the 1994 annual hydrologic monitoring <br />report. Earlier measurements of inflow included inflow from mine workings adjacent to <br />the shaft as well as inflow from the shaft. The operator now measures inflows directly <br />beneath the shaft using a calibrated flume. <br />Year Inflow <br />1991 20 gpm <br />1992 15 gpm <br />1993 10 gpm <br />1994 0.2 gpm <br />Pumpieg oI the Tatum Well <br />The Tatum well was pumped to get a rough estimate of its maximum capacity of the well <br />in its p~zesent poor condition. A depth probe was placed at the bottom of the hole prior <br />to plac~ng the pump in the well in order to avoid hanging up the probe on the pump <br />hose, dire and rope. <br />An electric pump owned by Mr. Tatum was lowered down into the well. This pump was <br />powered by a generator switched to 220 volts. Mr. Tatum stated that the pump would <br />produc~ up to 30 gallons per minute. The pump inlet was placed at about 10 feet from <br />the bottom of the well, which corresponded to 10 feet above the previous intake of the <br />windmi 1 pump. This level was chosen to avoid sucking in mud and debris and possibly <br />damagi g the electric pump. At the time of the test, the water in the well was estimated <br />to be 1 2.5 feet below the top of the casing or a little higher. The pump apparatus may <br />have di placed some of the water, thereby lowering the apparent water table in the well <br />when t){e pump string was pulled. <br />The pump was run until the well was dry. The pump was equipped with a checkvalve <br />that wo~ld not allow water to flow back down the well. Water level recovery was <br />measur ,din 1/10 foot increments as follows: <br />Minutes <br />(in tenths).. <br />Feet <br />12ecovery <br />5.41 0.1 <br />6.5 0.2 <br />9.65 0.3 <br />7 <br />