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COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />Rationale -Page /2, Permir No. CO-0043648 <br />Table V/-1 EJJluera Limits Jor: <br />Discharge Poims OOIA (no stormwttter) and OOIB (includit:g stormwater) - Arequa Gulch at Station AGI.S; and <br />Point 007A, Discharges From the Valley Leach Facility That Qualify Jor Annual Precipitation or Storm Exemptions <br />Discharge Limitations- Maximum Concentrations <br />E,(/luent Parameter 30-Day Avg. ..: 7-Day Avg. Daily..Max.. Ratiorutle <br />continued from previous page <br />Aluminum, PD, ug/1 (!bs/day) Report (Repon) N/A Report (Report) Water Quality Standards <br />Arsenic, PD, ug/1 (lbs/day) 50 (Report) N/A 50 (Report) Water Quality Standards <br />Cadmium, PD, ug/l (lbs/day) 3.4 (Report) N/A 19 (Report) Wares Quality Standards <br />Chromium, Ill, PD, ug/t (tbs/day) SO (Report) NIA 50 (ReponJ Water Quality Standards <br />Chromium, VI, Diss, ug/l (lbs/day) 11 (Repon) N/A 16 (Repon) Water Quality Standards <br />Copper, PD, ug/1 (lbs/day) 39 (Report) N/A 65 (ReponJ Water Quality Standards <br />Iron, TR, ug/1 (!bs/day) 1,000 (Report) N/A Report (Report) Water Quality Standards <br />Lead, PD, ug/! (Ibs/day) 28 (Report) N/A Report (Report) Water Quality Standards <br />Manganese, TR, ug/l (lbs/day) 1,000 (Report) N/A Report (Report) Water Quality StandardG <br />Mercury, Totat, ug/t (Ibs/day) D. DI (Report) N/A Repon (ReponJ Water Quality Standards <br />Nickel, PD, ug/l (lbs/day) 274 (Report) N/A Repon (Repon) Water Quality Standards <br />Silver, PD, ug/l (!bs/day) Repon (ReponJ N/A 22 (ReponJ Water Quality Standards <br />Zinc, PD, ug/1 (lbslday} 343 (ReponJ N/A 379 (Report) Water Quality Standards <br />WAD Weak Acuff Dissociable <br />PD Potentially Dissolved <br />TR Total Recoverable <br />Diss Dissolved <br />Nute: Limits ,(ar discharge poim OOIA apply during any period after at 24 hmtrs have passed since the fast rain event or <br />since snown:elt in arty area tributary to this point has ceased. Limits for point 001 B apply during any rain or <br />snowmelt events w/rich produce visible runoff in the diversion channel, up until 24 hours after such precipitation <br />events hove tensed. <br /> <br />