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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
Fields
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 10 of 56 <br />C00032115 <br />ALTERNATE LIMITATIONS <br />Any discharge or increase in the volume of a discharge is caused by precipitation within any 24-hour period less than or <br />equal to the 10 -year, 24-hour precipitation event (or snowmelt of equivalent volume) may comply with alternate <br />limitations subject to burden of proof requirements as described in the EFFLUENT LIMITATIONS AND MONITORING <br />REQUIREMENTS section. <br />The following limits for Fe(TR) and Settleable Solids may be substituted for the Fe(TR) and TSS limitations contained in <br />the previous table. All other parameters remain unchanged. <br />Alternate Limits Outfall 011 (less than or equal to the 10 -year, 24-hour precipitation event) <br />Effluent Limitations Maximum <br />Report: <br />ICIS <br />Effluent Parameter <br />TKP3B <br />Static Renewal 7 Day Chronic <br />30_Day <br />NOEC or <br />Quarterly <br />3 Grabs / Test <br />Daily <br />Ceriodaphnia dubio <br />Frequency <br />IC25 > 100 <br />Average <br />Beginning 07/01/2020 <br />Maximum <br />Frequency <br />Sample Type <br />00980 <br />TKP6C <br />Static Renewal 7 Day Chronic <br />NOEC or <br />IC25 > 100 <br />Quarterly <br />3 Grabs / Test <br />00545 <br />Pimephales promelas <br />Report <br />0.5 <br />Monthly <br />TKP3B <br />Static Renewal 7 Day Chronic <br />NOEC or <br />IC25 > 100 <br />Quarterly <br />3 Grabs / Test <br />Ceriodaphnia dubia <br />ALTERNATE LIMITATIONS <br />Any discharge or increase in the volume of a discharge is caused by precipitation within any 24-hour period less than or <br />equal to the 10 -year, 24-hour precipitation event (or snowmelt of equivalent volume) may comply with alternate <br />limitations subject to burden of proof requirements as described in the EFFLUENT LIMITATIONS AND MONITORING <br />REQUIREMENTS section. <br />The following limits for Fe(TR) and Settleable Solids may be substituted for the Fe(TR) and TSS limitations contained in <br />the previous table. All other parameters remain unchanged. <br />Alternate Limits Outfall 011 (less than or equal to the 10 -year, 24-hour precipitation event) <br />ALTERNATE LIMITATIONS <br />Any discharge or increase in volume of a discharge caused by precipitation within any 24-hour period greater than the <br />10 -year, 24-hour event (or series of storms or snowmelt of equivalent volume) may comply with alternate limitations <br />subject to burden of proof requirements as described in the EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS <br />section. <br />The following limit for Fe(TR) may be substituted for that contained in the previous table. TSS and Settleable Solids <br />monitoring/ effluent limitations are not required. All other parameters remain unchanged. <br />Alternate Limits Outfall 011 (greater than the 10 -year, 24-hour precipitation event) <br />Effluent Limitations Maximum <br />ICIS <br />Effluent Parameter <br />Concentrations <br />Monitoring Requirements <br />30_Day <br />7 -Day <br />Daily <br />7-Day <br />Daily <br />Code <br />Frequency <br />Sample Type <br />Average <br />Average <br />Maximum <br />Frequency <br />Sample Type <br />00980 <br />Fe, TR (Ng/l) <br />1000 <br />Report <br />Monthly <br />Grab <br />00545 <br />Settleable Solids (ml/[) <br />Report <br />0.5 <br />Monthly <br />Grab <br />ALTERNATE LIMITATIONS <br />Any discharge or increase in volume of a discharge caused by precipitation within any 24-hour period greater than the <br />10 -year, 24-hour event (or series of storms or snowmelt of equivalent volume) may comply with alternate limitations <br />subject to burden of proof requirements as described in the EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS <br />section. <br />The following limit for Fe(TR) may be substituted for that contained in the previous table. TSS and Settleable Solids <br />monitoring/ effluent limitations are not required. All other parameters remain unchanged. <br />Alternate Limits Outfall 011 (greater than the 10 -year, 24-hour precipitation event) <br />OUTFALL 017 <br />Effluent Limitations Maximum <br />ICIS <br />Effluent Parameter <br />Concentrations <br />Concentrations <br />Monitoring Requirements <br />Code <br />Effluent Parameter <br />7-Day <br />Daily <br />Dam <br />Maximum <br />Frequency <br />Sample Type <br />Avera a <br />Avera a <br />Maximum <br />Frequency <br />Sample Type <br />00980 <br />Fe, TR (pg/l) <br />1000 <br />Report <br />Monthly <br />Grab <br />OUTFALL 017 <br />Effluent Limitations Maximum <br />Concentrations <br />Monitoring Requirements <br />ICIS Code <br />Effluent Parameter <br />30 -Day Average <br />Dam <br />Maximum <br />Frequency <br />Sample Type <br />
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