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Permit No. COG-850000
<br />Facility No. COG-850042
<br />Page 1
<br />CERTIFICATION
<br />AUTHORIZATTONTO DISCHARGE UNDER THE
<br />CDPS INDUSTRIAL GENERAL PERMIT
<br />FOR COAL MINING FACILITIES (SIC No: /22!)
<br />Category 07, Sub-category 5, General Permits, Current fee $556/year per CRS 25-8-502
<br />This permit specifically authorizes. Oakridge Energy, Inc.
<br />Sandra Pautsky, President
<br />4613 Jacksboro Highway
<br />Wichita Falls, TX 76302
<br />(940) 312-4772
<br />with thejaciliry contact of.~ VictorBrowrs, Operations, Four Corners Materials, Inc.
<br />(970) 247-2172 Fax (970) 247-6177
<br />to discharge from thefacility identified as the Carbon Junction Mine, located in Section 4, T34N, R9W,~ Section 33, T34%, R9W,~ and Section 33, T35N,
<br />R9W,~ approximately two miles southeast ojDurango, La Plata County; as shown in Figure 1 ojthe permit from discharge point 002, as shown in Figure 2
<br />ojthe permit and further described in this table:
<br />:!~ Ots al1 ~~~"AcuuelP.ostMmtn-',, s';4Desi'":,CB actty~. ;xr'IOYr.;2+tH"rEvertl~', v`- ~ `'"+`~' t' { `~ "-` "';;"; .f " *: "
<br />-.„ tt.'.. „r "„a + , , ,<'Receiven .Yf~rz~';-.< . ?::"_
<br />OD2 Post Mining 4.4 acre feet NM Carbon Junction Canyon, tributary to the Arsimas River
<br />NM means Nat Mensured
<br />The discharge goes to Carbon Junction Canyon, a tributary to the Animas River, which is within Segment 13b, Animas and Florida River Sub-basin, San
<br />Juan and Dolores Rivers Basin, found in the Classilicatians and Numeric Standards the San Juan and Dolores Rivers Basin (5 CCR 1002-34); last
<br />update effective August 30, 2002. Segment 13b has been designated Use Protected and is classifiedfor the following uses: Recreation, Class 1 a; Aquatic
<br />Life, Class 2 (Cold); Water Supply, Agriculture. The Division reviewed this facility on February 4, 2003, and determined that the antidegradation
<br />presumption was overcame because discharge does not occur during !ow flow periods and that the stream segment is designated Use Protected.
<br />The activity involves discharge ofsurface runofjonlyjrom a post mining area. No other sources of wastewater will be discharged.
<br />The Colorado Division of Minerals and Geology permit number is C-92-080.
<br />Outfall 002 shalt be the discharges of final treated water before entering Carbon Junction Canyon. Effluent Itmi[attOnS ar¢ Specified below and to Part
<br />LB.l.a) and c).
<br />,.r~r g.~tP¢i'a11I~ er ~~ *~; ~~a 530~Da ,Avers emttDdt7 »iaz? ,F.reguencrdy_~ „*s.~ .,Sample Type-~Nx~.~ *~~.~z~~Rat o ale~t~ ~-~.~,~.-.v=~
<br />Flow, MGD Report Report Monthly Instantaneous or Continuous Design Capacity
<br />Settleable Solids, ml/1 Report 0.5~ Monthly Grab Federal BAT
<br />pH, s.u. Report 6.5-9.0 Monthly !n-situ Water Quality Standards
<br />Oil and Grease, mg/1 Report 10 Monthly Visual Sdate Effluent Regulations
<br />Total Dissolved Solids, mg/[ Report Report Quarterly Grab CO River Salinity Regulations
<br />'The discharge maybe eligible for an exemption from this limitation if it is demonstrated that the discharge occurred as n result ofprecipita[ion greater than the associnted 10
<br />yens, 24 hour event. See permit Pnrt LB.I.d).
<br />The permittee is encouraged to read the general rationale for an understanding of how this permit was developed and to read the permit to see what
<br />requirements exist. Within the body of the permit itself, monitoring requirements are specified in Part IB.3. a), the Stormwater Management Plan
<br />requirements are specified in Part L8.2. and notification requirements for effluent violations are addressed in Part ZIA.
<br />Salinity (TDS) monitoring of the discharge will be required, as shown in the table above. Phosphorus monitoring of the discharge wil( not be required.
<br />Certification: Based on the above information, OakridgeEnergy is certified to discharge from the Carbon Junction Mine under the general permitfor coal
<br />mining, identified as permit number COG-850000. All correspondence relative to this facility should reference the specific facility number, COG-850042.
<br />Christopher L. Gates
<br />February 4, 2003
<br />Effective February 4, 2003 Expires June 30, 2007
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