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2018-03-01_HYDROLOGY - C1981010
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2018-03-01_HYDROLOGY - C1981010
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Last modified
4/26/2018 9:17:50 AM
Creation date
4/26/2018 8:43:58 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Hydrology
Doc Date
3/1/2018
Doc Name Note
CO00032115 (Draft)
Doc Name
CDPS/NPDES Permit
From
Water Quality Control Division
To
DRMS
Permit Index Doc Type
NPDES
Email Name
RAR
Media Type
D
Archive
No
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PART I <br />Page 33 of 56 <br />C00032115 <br />Chromium, <br />Hexavalent <br />pg/L <br />203,4 <br />Total Residual <br />Chlorine, DPD <br />mg/L <br />0.5 <br />Copper <br />pg/L <br />2 <br />Total Residual <br />Chlorine, <br />Am eriometric <br />mg/L <br />0.05 <br />Iron <br />pg/L <br />203 <br />Cyanide <br />pg/L <br />103 <br />Lead <br />pg/L <br />0.5 <br />Fluoride <br />mg/L <br />0.5 <br />Magnesium <br />pg/L <br />35 <br />Phenols <br />pg/L <br />30 <br />Manganese <br />pg/L <br />2 <br />Sulfate <br />mg/L <br />2 <br />Mercury <br />pg/L <br />0.23 <br />Sulfide <br />mg/L H2S <br />0.1 <br />Mercury, Low <br />Level <br />pg/L <br />0.002 <br />Total Dissolved <br />Solids (TDS) <br />mg/L <br />10 <br />Molybdenum <br />pg/L <br />0.5 <br />Total <br />Suspended <br />Solids (TSS) <br />mg/L <br />5 <br />Nickel <br />pg/L <br />1 <br />Radium -226 <br />pCi/L <br />1 <br />Selenium <br />pg/ L <br />13 <br />Radium -228 <br />Ci/L <br />1 <br />Silver <br />pg/ L <br />0.5 <br />Uranium <br />/ L <br />1 <br />Sodium <br />pg/ L <br />150 <br />0.5 <br />10 <br />Nonylphenol, <br />ASTM D7065 <br />pg/ L <br />10 <br />Thallium pg/ L <br />Zinc pg/ L <br />1 iia/1 <br />= mirrnaramc nar litar <br />�..._ <br />2 mg/L = milligrams per liter <br />3 PQL established based on parameter specific evaluation <br />4 For hexavalent chromium, samples must be unacidified so dissolved concentrations will be measured <br />rather than potentially dissolved concentrations. <br />3. Flow Measurine Device <br />If not already a part of the permitted facility, within ninety (90) days after the effective date of the permit, a flow <br />measuring device shall be installed to give representative values of effluent quantities at the respective discharge <br />points. Unless specifically exempted, or modified in the EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS <br />section, a flow measuring device will be applicable at all designated discharge points. <br />At the request of the Division, the permittee shall show proof of the accuracy of any flow -measuring device used in <br />obtaining data submitted in the monitoring report. The flow -measuring device must indicate values within ten (10) <br />percent of the actual flow being measured. <br />4. Extra Monitorin <br />If the permittee, using an approved analytical method, monitors any parameter more frequently than required by <br />this permit, then the results of such monitoring shall be included in the calculation and reporting of the values <br />required in the Discharge Monitoring Report Form (DMRs) or other forms as required by the Division. Such <br />increased frequency shall also be indicated. <br />5. Adverse Weather Conditions <br />When adverse weather conditions prevent sample collection according to the relevant monitoring schedule, the <br />permittee must take a substitute sample, as possible, during the remaining monitoring period; for stormwater, the <br />permittee must take a substitute sample during the next qualifying storm event. Adverse conditions are those that <br />are dangerous or create inaccessibility for personnel, such as local flooding, high winds, winter weather, or <br />electrical storms. <br />Adverse weather does not exempt the permittee from having to file timely DMRs. The permittee must report any <br />failure to monitor, including the basis for not sampling during the usual reporting period. Evidence to support this <br />
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