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Constituent <br />Limit <br />Units <br />Use Class <br />Aluminum (Al) <br />0.087 <br />mg/1 <br />Agriculture <br />Antimony (Sb) <br />0.0056 <br />mg/1 <br />Aquatic Life <br />Arsenic (As) <br />0.340 <br />mg /1 <br />Aquatic Life <br />Barium (Ba) <br />1.00 <br />mg /1 <br />All <br />Beryllium (Be) <br />0.100 <br />mg/1 <br />Aquatic Life <br />Boron (B) <br />0.75 <br />mg/1 <br />All <br />Cadmium (Cd) <br />0.010 <br />mg/I <br />Agriculture <br />Chromium (Cr III) <br />0.100 <br />mg /1 <br />Agriculture <br />Chromium (Cr IV) <br />0.100 <br />mg /1 <br />Agriculture <br />Copper (Cu) <br />0.200 <br />mg/1 <br />Agriculture <br />Iron (Fe) <br />1.00 <br />mg/1 <br />Aquatic Life <br />Lead (Pb) <br />0.100 <br />mg /1 <br />Agriculture <br />Manganese (Mn) <br />0.200 <br />mg /1 <br />Agriculture <br />Mercury (Hg) <br />0.0001 <br />mg /1 <br />Aquatic Life <br />Molybdenum (Mo) <br />0.300 <br />mg/1 <br />Aquatic Life <br />Nickel (Ni) <br />0.200 <br />mg /1 <br />Agriculture <br />Selenium (Se) <br />0.0184 <br />mg /1 <br />Aquatic Life <br />Silver (Ag) <br />0.00001 <br />mg /1 <br />Aquatic Life <br />Thallium (T1) <br />0.015 <br />mg/1 <br />Aquatic Life <br />Uranium (U) <br />0.0326 <br />mg/1 <br />All <br />Zinc (Zn) <br />2.00 <br />mg/1 <br />Agriculture <br />Fluoride (F) <br />2.00 <br />mg /1 <br />All <br />Nitrate (NO <br />100 <br />mg /I <br />Aquatic Life <br />Nitrite (NO <br />0.050 <br />mg /1 <br />Aquatic Life <br />Chloride (Cl) <br />250 <br />mg /1 <br />All <br />Sulfate (SO <br />250 <br />mg/1 <br />All <br />Dissolved Oxygen (DO) <br />3.00 <br />mg/I <br />Aquatic Life <br />pH (SU) <br />6.0 -9.5 <br />N/A <br />All <br />Temperature ( °C) <br />14.3 <br />N/A <br />Aquatic Life <br />E. Coli (per 100 ml) <br />126 <br />N/A <br />Recreation E <br />Segment 5 Use Classifications = Recreation E / Aquatic Life Warm Water 1 / Agriculture <br />The most restrictive Use Class limit was used for this table for each constituent. <br />For Metals - Aquatic Life limits are the dissolved fraction and Agriculture limits are total recoverable. <br />Note (1) — Selenium and Nitrite Limits are set on a site specific basis. Value listed is for reference only. <br />Note (2) — The analytical detection limit is 0.0002 mg/I for silver. <br />Note (3) — The uranium limit is set based on hardness values. The most restrictive limit is listed. <br />Prince Albert Mine 110(d) Permit Application Exhibit U - EPP <br />Four quarters of monitoring data for the latest period of available records from the Colorado Water <br />Quality Monitoring Station 000084 "Confluence of the San Miguel and Dolores Rivers" is included as <br />Attachment U.8.4 to the Environmental Protection Plan. <br />Table U.8.1 <br />San Miguel River Segment 5 Water Quality Standards <br />Rimrock Exploration & Development <br />Page 31 of 39 <br />