PERMFILE69459

• Permit No: C1983059A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 2 OTHER PERMITS
• Media Type: D
• Archive: Yes

COIARADO DEPARTMENT OF HEALTH
Water Quality Control Division ~
• 4210 East 11th Avenue
Denver, Colorado 80220
Page 2 of 4
Permit No. COG-850028
II. FACILITY INFORMATION: (continued)
F. Design Capacity: Sediment pond //1 is designed to contain a
10-year, 24-hour precipitation event and
has a containment volume of 0.89 acre-feet.
The dugout pond is designed to contain 0.36
acre-feet.
III. RECEIVING STREAM:
A. Identification, Classification, Numeric Standards
1. Identification: Unnamed tributary to the North Fork of the
Gunnison River
Sub-basin, Segment: Segment 6, Region 10, Gunnison River Basin;
North Fork of the Gunnison River Sub-basin
• 2. Classification: Recreational, Class 2
Aquatic Life, Class 2 (Cold)
Agricultural Use
3. Numeric Standards: The standards which have been assigned in
accordance with the above classifications
can be found in 3.5.0 Classifications and
Numeric Standards for the Gunnison and
Lower Dolores River Basins (5 CCR 1002-8),
as amended January 30, 1991. It should be
noted that this facility does not discharge
pollutants which are limited by water
quality standards with the exception of pH.
B. Receiving Water Data
1. Stream Low Flow: Not applicable; effluent limitations are not
flow based.
IV. FACILITY INFORMATION:
A sedimentation pond, designed to contain Che LO-year, 24-hour
precipitation event, exists at the mine site for Outfall 001.
The Terror Creek Company loadout and screening facility is the same as
. described in the original individual NPDES permit rationale except that
the facility has requested in a mid-term review response submitted to the '
Colorado MLRD that outfall 002 be removed. The facility has not received
approval to date. The facility has a maximum production rate of 500,000
tons/year and an estimated lifetime of 20 years.