Laserfiche WebLink
PARTI <br />Page No. 4 , <br />Permit No. COG-850000 <br />B. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS <br />1. Effluent Limitations <br />a. Active Minine Outfalls <br />ACTIVE MINING PRIMARY LIMITATIONS <br /> Limitation <br />Parameter 30-Day Avg.; <br />Flow, MGD Report Report <br />'Total Suspended Solids, mg/I 35 70 <br />Total kon, mg/1 <br />Existing Sources 3.5 7.0 <br />New Sources 3.0 6.0 <br />Total Manganese, mg/1 2.0 4.0 <br />'Settleable Solids, mUl Report Report <br />pH, s.u. N/A b.5-9.0 <br />Oil and Grease, mg/I N!A 10 <br />Total Dissolved Solids, mg/1•• Repot Report <br />Total Phosphorus (as P), mg/1••• Report Report <br />Daily Mme. <br />ACTIVE MINING ALTERNATE LIMITATIONS <br />Any dischazge or increase in the volume of a discharge caused by precipitation within any 24-hour period less than or equal to the <br />10-veaz, 24-hour precioitation event (or snowmelt of equivalent volume) n~ comply with the following limitations -- subject to <br />burden of proof requtretnents described in Part I.B.I.d). <br />Limitation <br />Parameter 30.Day Avg. Daily Max, <br />Flow, MGD Report Report <br />'Total Suspended Solids, mg/1 Report Report <br />Total Iron, mg/1 <br />Discharges from mountaintop removal, and steep slope areas. Report 7.0 "` <br />All other discharges covered under [his permit. Report Report <br />Total Manganese, mg/1 Report Report <br />+Settleable Solids, ml/1 Report 0.5 <br />pH, s.u. N/A 6.5-9.0 <br />Oil and Grease, mg/1 N/A 10 <br />Total Dissolved Solids, mg/1•• Report Report <br />Total Phosphorus (as P), mg/1••• Report Repoli <br />These altcmative limitations pertain [o storm evrna less than a 24-hour period, less than or equal [o a two-year, 24-hour precipitation evrnt (or snowanelt of <br />equivalrnt volume) only. <br />Any discharge or increase in the volume of a discharge caused by precipitation within any 24-hour period greater than the 10.veaz- <br />24-hourprecipitation event (or snowmelt of equivalent volume) ~ comply with the following limitations -- subject to bttrden of <br />proof requirements described in Part I.B.I.d). <br /> _ _ _ Limitation - <br />__ Pata~ter 30-Day Avg. Daily Max. <br />Flow, MGD Report Report <br />'Total Suspended Solids, mg/1 Report Report <br />Total Iron, mg/1 Report Report <br />Total Manganese, mg/t Report Report <br />•Settleable Solids, mlll Report Report <br />pH, s.u. N/A 6.5-9.0 <br />Oil and Grease, mg/1 N/A 10 <br />Total Dissolved Solids, mg/1'• Report Report <br />Tota] Phosphorus (as P), mg/]••• Report Report <br />•If discharge is to land, TSS and settleable solids monitoring is waived.••Applies only to drainages within the Colorado River Basin <br />"'Applies only [o drainages directly above Chatfield Reservov, Cherry Creek Reservoir, Dillon Reservoir, or Upper Bear Creek. <br />