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PART 1 <br />Page ix <br />Permit No. CO-0043648 <br />3. Best Manaeement Practices <br />The permittee shall take all reasonable precautions to prevent aad eliminate any point source discharge of process <br />water or combined process water/stormwater that has or may reach surface waters of the State, which may be <br />associated with the Cresson Mine Project and no[ covered by this pemti[. <br />The permittee shall insure that the excavation, movement end placement of any mine tailings or other materials that <br />might be contaminated with cyanide or other environmental pollutants is tamed out in a roamer which will avoid any <br />discharge of pollutants to surface waters of the State. <br />B. <br />MONITORING REQUIItEMENTS <br />Freauencv and Sample Tvoe <br />In order to obtain an indication of the probable compliance or noncompliance with the effluent limitations specified in <br />Part I.A.I, the permi[tee shall monitor all effluent parameters at the following frequencies. Such monitoring will <br />begin immediately and last for the life of [he permit unless otherwise noted. The results of such monitoring shall be <br />reported on the Discharge Monitoring Report (See Part I.B.2.) <br />Table I.B.-1, Monitoring for: <br />Discharges From the Valley [.each Facility That Qualify for Annual Precipitation or Storm Exemptions; <br />Points OOIA (no stormwater) and OOIB (including slormwaler) - Arequa Gulch at Station AG-I.S; <br />Point 004A -Springs forming Arequa Gulch within Arequa Gulch Rock Storage Area; <br />Point OOSA -Non-Spring Seepage from Arequa Gulch Rock Storage Area (does not include stormwater), At <br />Discharge Into Diversion Ditch Surrounding the Valley Leach Facility; <br />Point 006A -Non-Spring Seepage from Arequa Gulch Rock Storage Area, Mixed With Stormwater, At <br />Discharge From Diversion Ditch to Arequa Gulch Below the Valley Leach Facility <br />Point 007A -Discharges From the Valley Leach Facility That Qualify for Amual Precipitation or Storm Exl <br />Effluent Pazameter Measttrement Frequency Sample Type <br />Flow, MGD <br />Exemption Discharges -Point 007A <br />Points 001 A, 001 B, 004A, <br />005 A. 006 A <br />pH, su (minimum-maximum) <br />TSS, mg/I <br />Total Hardness, mg/l <br />Ammonia, Total, mg/I (Ibs/day) <br />Cyanide, WAD, mg/I (Ibs/day) <br />WAD Weak Actd Dissociable <br />PD Potentially Dissolved <br />Daily (Or Continuous) Instantaneous (Or Recorder) <br />Continuous Recorder <br />2 Times/Week In-Situ <br />Weekly Composite <br />Weekly Composite <br />Nor Required Until Cyanide Removal Process !s Begun <br />2 Times/Wcek Grab ' <br />cont'd <br />TR Total Recoverable <br />Diss Dissolved <br />This paremelar is subject to 'Noncompliance Noti Gcelion' rcqui¢ments of Pen IL A.7.(bj(vj of This ptrtnil. <br />INDPP +r1N] <br />