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When relating calculated discharge to the inflow results, correlation of inflow to <br /> discharge is relatively close. An inflow of 26.4 gpm relates to 38,016 gpd. Calculated <br /> discharge over the year is 109,200 gpd. The difference in the calculated discharge and the <br /> estimated inflow may relate to inefficiencies of pumping, unmeasurable ground water <br /> seepage into the sump, or new seepage encountered since the mine has been reactiviated. <br />