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<br />A. DEFINITION OF EFFLUENT LIMITATIONS
<br />1. Effluent Limitations
<br />PART I
<br />PARTI
<br />Page No. 3
<br />Petmit No.: CO-0000221
<br />Beginning no later than the effective date of this permit and ]acting through the expiration date of the permit, the petmittee is
<br />authorized to discharge from Outfalls 002, 003, 004, 005, 006, 008, 009, 010, 011, 012, 013, 014, 015, 016, and 017. Also,
<br />monitoring requirements for Outfalls MN02, MN03, MN04, MNOS, MN06, MN08, MN09, MNIO, MN11, MN12, MN13,
<br />MN14, MN15, MN16 and MN17 have been added. These MN Ou[falls correspond to [he locations of the original ou[falls,
<br />Outfall 002 and MN02, Outfall 003 and MN03 and so forth. WET testing requirements are limited under separate outfalls, as
<br />documented in the following tables.
<br />In accordance with the Water Quality Control Commission Regulations for Effluent Limitations, Section 62.4, and the
<br />Colorado Discharge Permit System Regulations, Section 61.8(2), 5 C.C.R. 1002-61, [he permitted discharge shall not contain
<br />effluent parameter concentrations which exceed the following limitations specified below or exceed the specified flow
<br />limitation.
<br />a. Oulfalls 002 and 003
<br />
<br />Effluent Parameter
<br />Flow, MGD
<br />pH, s.u. (minimum-maximum)
<br />Oil and Grease, mg/I
<br />Total Dissolved Solids, mg/1
<br />Total Recoverable Iron, ug/t
<br />Through 12/31/08
<br />Begimring 01 /01/09
<br />Settleable Solids, ml/I
<br /> Effluent Limitations
<br /> Maximum Concentrations
<br />30-Dav Averase 7-Dav Averase Daily Maximum
<br />Report NA Report
<br />NA NA 6.5-9
<br />NA NA 10
<br />Report NA Report
<br />3,500 NA 7,000
<br />1,000 NA Report
<br />Report NA 0.5
<br />ALTERNATE LIMITATIONS
<br />Any discharge or increase in the volume of a discharge caused by precipitation within any 24-hour period Tess than or equal to
<br />the 10-year, 24-hour precipitation event (or snowmelt of equivalent volume) may comply with the following limitations subject
<br />to burden of proof requirements described in Part LA.3.
<br />Effluent Parameters and Limitations Same as Above
<br />ALTERNATE LIMITATIONS
<br />Any discharge or increase in volume of a discharge caused by precipitation within any 24-hour period greater than the l0,vear,
<br />24-hour event (or series of storms or snowmelt of equivalent volume) may comply with the following limitations subject to
<br />burden of proof requirements described in Part LA.3.
<br />Effluent Parameter Effluent Limitations
<br /> Masimum Concentrations
<br /> 30-Dav Averase 7-Dav Averase Daily iVlaximum
<br />Flow, MGD Report NA Report
<br />pH, s.u. (minimum-maximum) NA NA 65-9
<br />Oil and Grease, mg/1 NA NA 10
<br />Total Dissolved Solids, mg/1 Report NA Keport
<br />Total Recoverable Iron, ug/1
<br />Through 12/31/08 3500 NA 7000
<br />Beginning 01/01/09 1000 NA Report
<br />Settleable Solids, mI/1 Report NA Report
<br />See Part LC. for Definitions.
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