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HYDRO23579
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HYDRO23579
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Entry Properties
Last modified
8/24/2016 8:44:02 PM
Creation date
11/20/2007 3:55:42 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981071
IBM Index Class Name
Hydrology
Doc Date
2/14/2001
Doc Name
MEMO CYCC
From
JON KUBIC
To
JANET BINNS
Permit Index Doc Type
NPDES
Media Type
D
Archive
No
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COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENV/RONMENT, Water Quality Control Division <br />Rationale -Page 5, Permit No. CO-0027754 <br />30-day avg 0.0004/0/0.002 0.073 0 <br />daily max 0.0013/0/0.003 0.13 0 <br />Iron (TR), mg/Q 0.56/0.23/1.70 /.0 1 <br />Manganese (TR), mg/Q 0.21/0.04/0.7 repon NA <br />Silver (PD), mg/~ <br />30-day avg 0.0001/0/0.00! report NA <br />_ daily max 0.0002/0/0.001 repon NA <br />Table /V-7 -Self-Monitoring Results for Outfall 008 (Three Reporting Periods Only) <br />Parameter Reported Previous No. of <br />Concentrations Permit Limitation <br />Avg/Min/Max Limitation Excursions <br />Flow, MCD 0.0295/0.0002/0.082 repon NA <br />Tonal Suspended Solids, mg/C <br />30-day avg 0/0/0 35 0 <br />daily nuzx 5/5/5 70 0 <br />Settleable Solids, mE/2 0.13/0.1/0.2 0.5 0 <br />Oil & Grease, mg/Q NV/NV/NV !0 0 <br />pH, s. u. -/7.89/8.44 6.5-9.0 0 <br />Conductivity, umho/cm 755/755/755 repon NA <br />Iron (/'oral), mg/Q <br />30-day avg 0.18/0.09/0.34 3.5 0 <br />daily max 0.18/0.09/0.34 7.0 0 <br />Table IV-8 -- Self-Mouitoring Results for Outfa[l 009 (Nine Reporting Periods Only) <br />Parameter Reported Previous No. of <br />Concentrations Permit Limitation <br />Avg/Min/Max Limitation Excursions <br />Flow, MGD 0.0248/0.0003/0.0735 report NA <br />Settleable Solids, m!/f 0.11/0.1/0.2 0.5 0 <br />Oil & Grease, mg/C NV/NV/NV /0 0 <br />pH, s. u. -/7.71/8.26 6.5-9.0 0 <br />Conductivirv, umho/cm 2369//150/3673 repon NA <br />Table /V-9 -- Self-Monitoring ResuUs for Outfa[[ 0/9 (Reporting Oatfall for Combined Discharge jrom <br />'hvsical Outfalls 001. 005. 005, and 010) <br />Parameter rteponeu ~renous rvu. of <br />Concentrations Permit Limitation <br />Avg/Min/Max Limitation Excursions <br />Flow, MCD 0.93/0.23/3.!5 repon NA <br />Manganese (IR), mg/(' 0.22/0.04/0.64 1.0 <br />PD means the potentially dissolved fraaiwr, as defined irs ttre Basic Standards acrd Medrodaloeies for Sudnce Water (31.0) <br />TR means the total recoverable fraction, as defined in the Ban'r;~tnr nr s nn e1 0 0 ogres or u ace arer 37.0) <br />NV means no visible sheen <br />• see V.B. Compliance With Terms and Conditions <br />2. State Snrnpling: TTtere are no recent state sumpling results available jot this facility. <br />B. Compliance With Terms and Conditions of Previous Permit <br />I. Eflluetu Limitations: The data shown in dte preceding tables indicate apparent violations ojthe permit <br />limi[ations. WET test failures occurred at outfalls 00/, 005, and 007. The pennittee has attributed these to total <br />dissolved solids and has prepared an Aquatic /mpairmertt Study for Division review. Additionally, one <br />exceedence of the total recoverable iron limitation occurred at outfafl 007. As this is apparently an isolated <br />occurrence, no action i:as been taken. <br />
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