2012-06-20_PERMIT FILE - C2010089 ‎(57)‎

• Permit No: C2010089A
• IBM Index Class Name: PERMIT FILE
• Doc Date: 6/20/2012
• Doc Name: Water Discharge Permit
• Section_Exhibit Name: Appendix 2.05.3‎(4)‎-3
• Media Type: D
• Archive: Yes

annual precipitation of 26.0 inches or less.
The above categories are subject to 40 CFR Part 434 Subparts B (Coal Preparation Plant and Associated Areas), D
(Alkaline Mine Drainage) and F (Miscellaneous Provisions). These limitations also apply to Western Coal Mining
Operations. The following Iimitations apply as outlined in these subparts.
--------- - - - - -- General Permit Requirements
Report NA Report Discharge Evaluation
pH, s.u. N/A NA 6.5 -9.0 Water Quality Standards
Oil and. Grease, mg/1 N/A NA
------------------ - - - - -- Federal Effluent Limitation Guidelines
Total Suspended Solids, mg/1 35 NA 70 Federal ELG
Flow, MGD
Total Iron, mg/1
Existing Sources (before
5/4/84)
New Sources (after 5/4/84)
Settleable Solids, ml/1
Total Dissolved Solids, mg/1*
Total Phosphorus (as P), mg/1 **
Total Recoverable Iron, ug/1
Other Pollutants of Concern
Whole Effluent Toxicity (WET)
Chronic
Acute
3.5 NA 7.0
3.0 NA 6.0
Report NA 0.5
Site Specific Limitations
Report NA Report
Report NA Various
1000 NA NA
Various NA Various
Stat Diff and 1C25 > IWC
LC50 > 100%
10 State Effluent Regulations
Federal ELG
Federal ELG
Salinity Regulations
Control Regulations
Water Quality Standards
Water Quality Standards
State Permit Limitations
State Permit Limitations
ALTERNATE LIMITATIONS FOR ALKALINE MINE DRAINAGE AND
COAL PREPARATION AND ASSOCIATED AREAS
Continuous /
Instantaneous
Weekly
Weekly
PART1
Page No. 5
Permit No. COG - 850000
Weekly Grab
Weekly Grab
Weekly Grab
Quarterly 4 Grab
Monthly Grab
Weekly Grab
Weekly Grab
Recorder /
In -situ 2
Grab
Visual 3
Quarterly 3 Grab/Test
Grab •
Footnotes 1-4, * and ** can be found under Part 1.B.I.
* ** This limitation will apply and will substitute for the 30-day average total iron limit based upon the ELG, when a total recoverable iron standard is applicable to
the stream segment.
Any discharge or increase in the volume of a discharge from an above ground alkaline mine (or an underground
alkaline mine where the effluent is commingled with other categorical wastewater prior to discharge), caused by
precipitation within any 24 -hour period less than or equal to the 10 -year. 24 -hour precipitation event (or snowmelt of
equivalent volume) may substitute the following limitations for these specific parameters only, subject to burden of
proof requirements described in Part I.B.G.
— Federal Effluent Limitation Guidelines----- - --
Total Suspended Solids, mg/1 Report NA Report Federal ELG
Total Iron, mg/1
Existing Sources (before
5/4/84)
New Sources (after 5/4/84)
Report NA
Report NA
Report Federal ELG
Report
Weekly Grab
Weekly Grab
Any discharge or increase in the volume of a discharge from an above ground alkaline mine (or an underground
alkaline mine where the effluent is commingled with other categorical wastewater prior to discharge), caused by
precipitation within any 24 -hour period greater than the 10 - year, 24 -hour precipitation event (or snowmelt of
equivalent volume) may substitute the following limitations for these specific parameters only, subject to burden of
proof requirements described in Part LB.6.