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PART I <br />Page x <br />Permit No. CO-0043648 <br />Table I.B.-1, Monitoring for: <br />Points OOIA (no stotmwater) and OOIB (including stormwater) - Arequa Gulch a[ Station AG-1.5; <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 Annual Precipitation or Storm Exemptions <br />Etl7uent Parameter Measui~ient . <br />)HYequeney <br />atnp a ype <br /> cont'd from previous page <br />Aluminum, PD, ug/I (Ibs/day) Monthly Composite' <br />Arsenic, PD, ug/1 (Ibs/day) Monthly Composite' <br />Cadmium, PD, ug/I (Ibs/day) Weekly Composite' <br />Chromium, i[I, PD, ug/I (Ibs/day) Monthly Composite' <br />Chromium, VI, Diss, ug/I (Ibs/day) Monthly Composite' <br />Copper, PD, ug/I (Ibs/day) Weekly Composite' <br />Iron, TR, ug/I (Ibs/day) Monthly Composite" <br />Lead, PD, ug/I (Ibs/day) Monthly Composite' <br />Manganese, TR, ug/1 (Ibs/day) Weekly Composite' <br />Mercury, Total, ug/I (Ibs/day) Weekly Composite" <br />Nickel, PD, ug/I (Ibs/day) Monthly Composite' <br />Silver, PD, ug/I (Ibslday) Weekly Composite' <br />Zinc, PD, ug/I (Ibs/day) Weekly Composite' <br />Monilorine Which Onlv Aomlies To Point 1x17A <br />Discharees Fmm the Vellev Leach Facility Which Ouelify For Annual PrecioilElion or Slonn Exemotions <br />Whole EfFluent Toxicity, Chronic Once/2 Weeks Composite <br />WAD Weak Acid Dissociable <br />PD Potentially Dissolved <br />TR Total Recoverable <br />Diss Dissolved <br />This perem<ter is subject to 'Noncompliance Notification' rtquirtments of Pan 11. A.3.(b)(v) of Ihis permit. <br />Note: Samples for discharge point OO]A and OOSA may not be collected until at least 24 hours have passed since the last <br />rain event or since snowmel[ in any area tributary to this point has ceased. Samples for discharge point 001 B annd <br />006A may be collected only after rain events or snowmel[ conditions which produce visible runoff in the diversion <br />channel have lasted for a period of at least 5 minutes, and must be collected within 10 minutes after such precipitation <br />events have ceased. <br />INnHP aNrV) <br />