2011-07-06_HYDROLOGY - C1981019

• Permit No: C1981019
• IBM Index Class Name: HYDROLOGY
• Doc Date: 7/6/2011
• Doc Name: DMRS ‎(CO-0045161)‎ Request for Waiver of Primary Quality Standards
• From: Colowyo Coal Company
• To: WQCD
• Permit Index Doc Type: DMR’s
• Email Name: JHB
• Media Type: D
• Archive: No

Colowyo is respectfully requesting a waiver be granted for the elevated levels reported at
Outfall 010A based on inflow into the pond from snowpack and spoil spring activity causing
discharge from the outfall. Colowyo thanks you in advance for your consideration on this
matter. If you should have any additional questions or concerns please feel free to contact
me at your convenience at (970) 824 -1573.
Chip Brown
Environmental Engineer
CC: CDRMS /Janet H. Binns