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l <br />Perniit No. COG-850000 <br />Facl[iry No. COG-850030 <br />Page la <br />Outfali 001 shall be ilie discharge of final treated water prior to entering Grey Creek. EfJliient limitations are specified <br />below and in Part I. B.I.b) aad c). <br />inirtatton:.:..:: ' .....:: :...::...: aeon a '..::..:... ..:., ::....:..:..: <br />Flow, MGD Report Design Capacity <br />Settleable Solids, rnP/P 0.5* c/ Federal BAT <br />pH, s. u. 6.5-9.0 a/ Water Quality Standards <br />Oil and Grease, mg/P 10 c/ State Eryluenr Regulations <br />a/ Minimum-Maximum <br />b/ 30-Day Average/Daily Maximum <br />c/ Daily Maximum <br />* The discharge may be eligible for an exemption from this lirnilation ij it is demonstrated tltat the discharge occurred <br />as a result of precipitation greater titan the associated 10 year, 24 hour event. See permit, Part I. B. I. d). <br />Tl:e perritittee is encouraged to read the general rationale for an understanding of how this permit was developed artd to <br />read the permit to see what requiremerus exist. Within the body of the permit itself, monitoring requirements are specified <br />in Part /.B.3.6), the Stormwater Management Plan requirements are specified in Part /.B.2. and special notification <br />requirements for effluent violations are addressed iii Pan II.A. <br />Salinity (TDS) monitoring oJthe discharge will not be required, as shown in /he table above. Phosphorus monitoring <br />of the discharge will not be required. <br />Certification: Based on the above information, landmark Reclamation is certified to discharge from the Rim Rock Coa[ <br />Mine under the general permit for coal mining, identified as permit number COG850000. All correspondence relative <br />to this facility should reference the specific facility number, COG850030. <br />/on C. Kubic <br />May 13, 1997 <br />