HYDRO30295

• Permit No: C1982055
• IBM Index Class Name: Hydrology
• Doc Date: 3/4/1993
• Doc Name: CERTIFICATION COAL MINING GENERAL PERMIT
• Permit Index Doc Type: NPDES
• Media Type: D
• Archive: No

~'f)I :11'..\UO G;.. ,..: i".-. ~ 01' II E.'. ;: I'Il, ...~„•Y .. '!.. .,. ~:ol 7i ...~,•in
R ~t .>na :_ - !' ~_ ~ :G~"iT ill::~l'J ci:: . .. ..-UU'.. l
EFFLUENT LIMITATIONS
(Continued)
ACTIVE MINING -
Parameter
Plow (MCD)
pH (s.u.)
Oil and Crease •;:^.g/1)
Total Suspended Solids (mg/1)
Total Iron (wg/i)
Settleable Solids (in1/1)
'total Dissolved Solids (ing/1)
(Colo. River Basin)
Toca1 Phosphorus, as P (mg/1)
Param--er
Table 1
(Applical~te Regulations)
SES 6~OS BP'C BAT NSPS
-•----------------Monitoring Only------•-----------
6.0 - 9.0 G.5 - y.0 G.U - 9.0 N/A 6.0 - 9.0
10 N/A N/A N/A N/n
30/45 N/A 35/70 N/A 35/70
N/A N/n 3.5/7.0 3.5/7.0 3.0/G.0
N/A N/A N/A 0.5 N/A
-----Monitor per Colo. Salinity Regulations-------
-----Monitoring Dillon Reservoir Basin Only-------
Table 2
(Final Limitations)
Flow (PICD)
pH (s.u.)
Oil and Grease (mg/1)
Total Suspended Solids (mg/1)
Total Iron (mg/1) (E~isting Sources)
Total Iron (ing/L) (New Sources)
Settleable Solids (m1/1)
Total Dissolved Solids (mg/1)
(Co 1o. River Basin)
Total Phosphorus, as P (mg/1)
(Dillon Reservoir basin only)
Liinitacion
Basis
Report Monitoring Only
G.5-9.0 WQS
10 SES
35/70 BPT
3.5/7.0 BAT
3.0/6.0 NSPS
0.5 BAT
Report Monitoring Only
Report Monitoring Only
- POST-HIVING
Parameter
Flow (C1CD)
pN (s.u.)
Oil and Crease (mg/1)
Settleable Solids (ml/1)
Total Dissolved Solids (ing/1)
(Co 1o. River Basin)
Total Phosphorus, as P (mg/1)
Tab Le 3
(Applicable Regulations)
SES l2 S BPT BAT NSPS
----------••-----Monitoring.Only-------------------
G.0 - 9.0 G.5 - 9.0 G.0 - 9.0 N/n 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 Co Lo. Salinity Regulations-------
------'monitoring Dillon Reservoir Basin Only-----•-