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Henderson Mine <br /> • Henderson Mine <br /> — August 5, 1993 - Meeting between DMG and Cyprus. <br /> » Review Preliminary Ground Water Monitoring Plan (Permit No. M 77- <br /> 342). <br /> • Ground Water Confined To "Wedge" Of Glacial Sediments <br /> — Bounded by low permeability bedrock. <br /> • Ground Water Discharges To Surface Water <br /> • Surface Water Monitoring Upstream And Downstream Of <br /> Mine Shows No Impact To Stream Quality <br /> • Preliminary Ground Water Monitoring Plan <br /> — Ambient ground water quality could not be determined by September 1, <br /> 1993 . <br /> — Install shallow monitoring well in glacial sediments and sampled quarterly <br /> for five periods. <br /> — Characterization of ambient ground water quality by the end of 1st quarter <br /> 1995. <br />