HYDRO30277

• Permit No: C1981014
• IBM Index Class Name: Hydrology
• Doc Date: 11/7/1991
• Doc Name: CERTIFICATION ENERGY FUELS COAL INC SOUTHFIELD COAL LOADOUT FAILITY NO COG-850006 FORMERLY CO-003710
• Permit Index Doc Type: CORRESPONDENCE
• Media Type: D
• Archive: No

COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division
Rationale - Page 5. PERMIT NUMBER: COG-850000
EFFLUENT LIMITATIONS: (Continued)
- ACTIVE MINING -
Table 1 -
(Applicable Regulations)
Parameter SES WQS BPT BAT NSPS
Flow (MGD)
pH (s.u.)
011 and Grease (mg/1)
Total Suspended Solids (mg/1)
Total Iron (mg/1)
Settleable Solids (ml/1)
Total Dissolved Solids (mg/1)
(Colo. River Basin)
Total Phosphorus, as P (mg/1)
Parameter
--------------Monitoring On
6.0 - 9.0 6.5 - 9.0 6.0 - 9.0
10 N/A N/A
30/45 N/A 35/70
N/A N/A 3.5/7.0
N/A N/A N/A
iy-------------
N/A 6.0 - 9.0
N/A N/A
N/A 35/70
3.5/7.0 3.0/6.0
0.5 N/A
----Monitor per Colo. Salinity Regulations-----
----Monitoring Dillon Reservoir Basin Only-------
Table 2
(Final Limitations)
Limitation Basis
Flow (MGD)
pH (s.u.)'
Oil and Grease (mg/1)
Total Suspended Solids (mg/1)
Total Iron (mg/1) (Ezlsting Source9)
Total Iron (mg/1) (New Sources)
Settleable Solids (ml/1) ,
Total Dissolved Solids (mg/1)
(Colo. River Basin) ~~
Total Phosphorus, as P (mg/1 y
(Dillon Reservoir basin only)
Parameter
Flow (MGD)
pH (s.u.)
011 and Grease (mg/1)
Settleable Solids (ml/1)
Total Dissolved Solids (mg/1)
(Colo. River Basin)
Total Phosphorus, as P (mg/1)
Report Monitoring Only
6.5-9.0 WQS
10 SES
35/70 BPT
3.5/7.0 BAT
3.0/6.0 PISPS
0.5 BAT
Report Monitoring Only
Report Monitoring Only
- POST-MINING -
Table 3
(Applicable Regulations)
SES WSS. BPT BAT NSPS
-------------Monitoring Only- -----------------
6.0 - 9.0 6.5 - 9.0 6.0 - 9.0 N/A 6.0 - 9.0
10 N/A N/A N/A N/A
N/A N/A N/A 0.5 0.5
-----Monitor per Colo. Salinity Regulations----
----Monitoring Dillon Reservoir Basin Only------