2011-08-18_HYDROLOGY - M1977306

• Permit No: M1977306
• IBM Index Class Name: HYDROLOGY
• Doc Date: 8/18/2011
• Doc Name: Colorado Discharge Permit System
• From: Water Quality Control Division
• To: Cotter Corporation
• Email Name: GRM
• Media Type: D
• Archive: No

Table A -3a
In- stream Standards for Stream Segment COGULDO3a
Physical and Biological
Dissolved Oxygen (DO) = 5 mg/1, minimum
pH= 6.5 -9su
E. coli chronic = 126 colonies /100 ml
Inorganic
Free Cyanide acute = 0.2 mg/1
Boron chronic = 0.75 mg/1
Nitrite acute = 10 mg/1
Nitrate acute = 100 mg/1
Metals
Total Recoverable Arsenic chronic = 100 µg/1
Total Recoverable Beryllium chronic = 100 µg/1
Total Recoverable Cadmium chronic = 10 µg/1
Total Recoverable Trivalent Chromium chronic = 100 µg/1
Total Recoverable Hexavalent Chromium chronic = 100 µg/1
Total Recoverable Copper chronic = 2001.1g/1
Total Recoverable Lead chronic = 100 µg/1
Total Recoverable Manganese chronic = 200 µg/1
Total Recoverable Nickel chronic = 200 µg/1
Total Recoverable Selenium chronic = 20 µg/1
Total Recoverable Zinc chronic = 200011g/1
Cotter Corporation Water Quality Assessment
Appendix A (WQA V 7.0)
C00036251
Page 8 of 23 Last Revised 06/10/10 /AO