NPDES permit CO0027707 · Major NON-POTW · administratively continued, expires 2017-11-30 · EPA's file as of 2026-09-19
Check this month's numbers before you fileThis permit expired on 2017-11-30 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31. Most often over: Static Renewal 7 Day Chronic Ceriodaphnia dubia (1), Solids, total suspended (1), Nitrogen, ammonia total [as N] (1).
Reports are due about 28 days after each monitoring period ends (the most common figure among CO permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Conductivity | 30DA AVG | report only | all year |
| 001 | Conductivity | DAILY MX | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | 30DA AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | 30DA AVG | <= 1149 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 2297 lb/d | all year |
| 001 | pH | MINIMUM | >= 6.5 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Bicarbonate ion- [as HCO3] | 30DA AVG | report only | all year |
| 001 | Bicarbonate ion- [as HCO3] | DAILY MX | report only | all year |
| 001 | Solids, total suspended | 30DA AVG | report only | all year |
| 001 | Solids, total suspended | DAILY MX | report only | all year |
| 001 | Solids, total suspended | 30DA AVG | <= 1368 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 2735 lb/d | all year |
| 001 | Nitrogen, total [as N] | 30DA AVG | <= 134 mg/L | all year |
| 001 | Nitrogen, total [as N] | DAILY MX | <= 194 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.7 mg/L | Jan |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.4 mg/L | Feb |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.4 mg/L | Mar |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.1 mg/L | Apr |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.7 mg/L | May |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.5 mg/L | Jun |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.2 mg/L | Jul |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 1.9 mg/L | Aug |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.1 mg/L | Sep |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.2 mg/L | Oct |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3 mg/L | Nov |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.2 mg/L | Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Jan |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Feb |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Mar |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Apr |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | May |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Jun |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Jul |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Aug |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Sep |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Dec |
| 001 | Calcium, total recoverable | 30DA AVG | report only | all year |
| 001 | Calcium, total recoverable | DAILY MX | report only | all year |
| 001 | Magnesium, total recoverable | 30DA AVG | report only | all year |
| 001 | Magnesium, total recoverable | DAILY MX | report only | all year |
| 001 | Sodium, total recoverable | 30DA AVG | report only | all year |
| 001 | Sodium, total recoverable | DAILY MX | report only | all year |
| 001 | Sodium adsorption ratio | 30DA AVG | report only | all year |
| 001 | Sodium adsorption ratio | DAILY MX | report only | all year |
| 001 | Sodium adsorption ratio | 30DA AVG | report only | all year |
| 001 | Sodium adsorption ratio | DAILY MX | report only | all year |
| 001 | Copper, potentially dissolved | 30DA AVG | report only | all year |
| 001 | Copper, potentially dissolved | DAILY MX | report only | all year |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | report only | all year |
| 001 | Cadmium, potentially dissolvd | DAILY MX | report only | all year |
| 001 | Lead, potentially dissolvd | 30DA AVG | report only | all year |
| 001 | Lead, potentially dissolvd | DAILY MX | report only | all year |
| 001 | Selenium, potentially dissolvd | 30DA AVG | report only | all year |
| 001 | Selenium, potentially dissolvd | DAILY MX | report only | all year |
| 001 | Oil and grease | 30DA AVG | <= 438 lb/d | all year |
| 001 | Oil and grease | DAILY MX | <= 875 lb/d | all year |
| 001 | Flow, in conduit or thru treatment plant | 30DA AVG | <= 3.6 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Chlorine, total residual | 30DA AVG | <= .011 mg/L | all year |
| 001 | Chlorine, total residual | INST MAX | <= .019 mg/L | all year |
| 001 | Production divided by days operated mo. | 30DA AVG | report only | all year |
| 001 | Production divided by days operated mo. | DAILY MX | report only | all year |
| 001 | Sulfide-hydrogen sulfide [undissociated] | 30DA AVG | report only | all year |
| 001 | Mercury, total [as Hg] | 30DA AVG | report only | all year |
| 001 | Coliform, fecal general | 30DA GM | report only | all year |
| 001 | Coliform, fecal general | DAILY MX | <= 400 #/100mL | all year |
| 001 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | SINGSAMP | report only | all year |
| 001 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | MN VALUE | report only | all year |
| 001 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | MN VALUE | >= 100 tox chronic | all year |
| 001 | Static Renewal 7 Day Chronic Pimephales promelas | SINGSAMP | report only | all year |
| 001 | Static Renewal 7 Day Chronic Pimephales promelas | MN VALUE | report only | all year |
| 001 | Static Renewal 7 Day Chronic Pimephales promelas | MN VALUE | >= 100 tox chronic | all year |
| 002 | Conductivity | 30DA AVG | report only | all year |
| 002 | Conductivity | DAILY MX | report only | all year |
| 002 | BOD, 5-day, 20 deg. C | 30DA AVG | report only | all year |
| 002 | BOD, 5-day, 20 deg. C | DAILY MX | report only | all year |
| 002 | BOD, 5-day, 20 deg. C | 30DA AVG | <= 1476 lb/d | all year |
| 002 | BOD, 5-day, 20 deg. C | DAILY MX | <= 2953 lb/d | all year |
| 002 | pH | MINIMUM | >= 6.5 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Bicarbonate ion- [as HCO3] | 30DA AVG | report only | all year |
| 002 | Bicarbonate ion- [as HCO3] | DAILY MX | report only | all year |
| 002 | Solids, total suspended | 30DA AVG | report only | all year |
| 002 | Solids, total suspended | DAILY MX | report only | all year |
| 002 | Solids, total suspended | 30DA AVG | <= 1758 lb/d | all year |
| 002 | Solids, total suspended | DAILY MX | <= 3515 lb/d | all year |
| 002 | Nitrogen, total [as N] | 30DA AVG | <= 134 mg/L | all year |
| 002 | Nitrogen, total [as N] | DAILY MX | <= 194 mg/L | all year |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.7 mg/L | Jan |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.4 mg/L | Feb |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.4 mg/L | Mar |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.1 mg/L | Apr |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.7 mg/L | May |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.5 mg/L | Jun |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.2 mg/L | Jul |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 1.9 mg/L | Aug |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.1 mg/L | Sep |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.2 mg/L | Oct |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3 mg/L | Nov |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.2 mg/L | Dec |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Jan |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Feb |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Mar |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Apr |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | May |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Jun |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Jul |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Aug |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Sep |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Oct |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Nov |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Dec |
| 002 | Calcium, total recoverable | 30DA AVG | report only | all year |
| 002 | Calcium, total recoverable | DAILY MX | report only | all year |
| 002 | Magnesium, total recoverable | 30DA AVG | report only | all year |
| 002 | Magnesium, total recoverable | DAILY MX | report only | all year |
| 002 | Sodium, total recoverable | 30DA AVG | report only | all year |
| 002 | Sodium, total recoverable | DAILY MX | report only | all year |
| 002 | Sodium adsorption ratio | 30DA AVG | report only | all year |
| 002 | Sodium adsorption ratio | DAILY MX | report only | all year |
| 002 | Sodium adsorption ratio | 30DA AVG | report only | all year |
| 002 | Sodium adsorption ratio | DAILY MX | report only | all year |
| 002 | Copper, potentially dissolved | 30DA AVG | report only | all year |
| 002 | Copper, potentially dissolved | DAILY MX | report only | all year |
| 002 | Cadmium, potentially dissolvd | 30DA AVG | report only | all year |
| 002 | Cadmium, potentially dissolvd | DAILY MX | report only | all year |
| 002 | Lead, potentially dissolvd | 30DA AVG | report only | all year |
| 002 | Lead, potentially dissolvd | DAILY MX | report only | all year |
| 002 | Selenium, potentially dissolvd | 30DA AVG | report only | all year |
| 002 | Selenium, potentially dissolvd | DAILY MX | report only | all year |
| 002 | Oil and grease | 30DA AVG | <= 562 lb/d | all year |
| 002 | Oil and grease | DAILY MX | <= 1125 lb/d | all year |
| 002 | Flow, in conduit or thru treatment plant | 30DA AVG | <= 4.6 MGD | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 002 | Chlorine, total residual | 30DA AVG | <= .011 mg/L | all year |
| 002 | Chlorine, total residual | INST MAX | <= .019 mg/L | all year |
| 002 | Production divided by days operated mo. | 30DA AVG | report only | all year |
| 002 | Production divided by days operated mo. | DAILY MX | report only | all year |
| 002 | Sulfide-hydrogen sulfide [undissociated] | 30DA AVG | report only | all year |
| 002 | Mercury, total [as Hg] | 30DA AVG | report only | all year |
| 002 | Coliform, fecal general | 30DA GM | report only | all year |
| 002 | Coliform, fecal general | DAILY MX | <= 400 #/100mL | all year |
| 002 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | SINGSAMP | report only | all year |
| 002 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | MN VALUE | report only | all year |
| 002 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | MN VALUE | >= 100 tox chronic | all year |
| 002 | Static Renewal 7 Day Chronic Pimephales promelas | SINGSAMP | report only | all year |
| 002 | Static Renewal 7 Day Chronic Pimephales promelas | MN VALUE | report only | all year |
| 002 | Static Renewal 7 Day Chronic Pimephales promelas | MN VALUE | >= 100 tox chronic | all year |
| 003 | Conductivity | 30DA AVG | report only | all year |
| 003 | Conductivity | DAILY MX | report only | all year |
| 003 | BOD, 5-day, 20 deg. C | 30DA AVG | report only | all year |
| 003 | BOD, 5-day, 20 deg. C | DAILY MX | report only | all year |
| 003 | BOD, 5-day, 20 deg. C | 30DA AVG | <= 1640 lb/d | all year |
| 003 | BOD, 5-day, 20 deg. C | DAILY MX | <= 3280 lb/d | all year |
| 003 | pH | MINIMUM | >= 6.5 SU | all year |
| 003 | pH | MAXIMUM | <= 9 SU | all year |
| 003 | Bicarbonate ion- [as HCO3] | 30DA AVG | report only | all year |
| 003 | Bicarbonate ion- [as HCO3] | DAILY MX | report only | all year |
| 003 | Solids, total suspended | 30DA AVG | report only | all year |
| 003 | Solids, total suspended | DAILY MX | report only | all year |
| 003 | Solids, total suspended | 30DA AVG | <= 1953 lb/d | all year |
| 003 | Solids, total suspended | DAILY MX | <= 3905 lb/d | all year |
| 003 | Nitrogen, total [as N] | 30DA AVG | <= 134 mg/L | all year |
| 003 | Nitrogen, total [as N] | DAILY MX | <= 194 mg/L | all year |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.7 mg/L | Jan |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.4 mg/L | Feb |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.4 mg/L | Mar |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.1 mg/L | Apr |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.7 mg/L | May |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.5 mg/L | Jun |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.2 mg/L | Jul |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 1.9 mg/L | Aug |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.1 mg/L | Sep |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.2 mg/L | Oct |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3 mg/L | Nov |
| 003 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.2 mg/L | Dec |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Jan |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Feb |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Mar |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Apr |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | May |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Jun |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Jul |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Aug |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Sep |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Oct |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Nov |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8 mg/L | Dec |
| 003 | Calcium, total recoverable | 30DA AVG | report only | all year |
| 003 | Calcium, total recoverable | DAILY MX | report only | all year |
| 003 | Magnesium, total recoverable | 30DA AVG | report only | all year |
| 003 | Magnesium, total recoverable | DAILY MX | report only | all year |
| 003 | Sodium, total recoverable | 30DA AVG | report only | all year |
| 003 | Sodium, total recoverable | DAILY MX | report only | all year |
| 003 | Sodium adsorption ratio | 30DA AVG | report only | all year |
| 003 | Sodium adsorption ratio | DAILY MX | report only | all year |
| 003 | Sodium adsorption ratio | 30DA AVG | report only | all year |
| 003 | Sodium adsorption ratio | DAILY MX | report only | all year |
| 003 | Copper, potentially dissolved | 30DA AVG | report only | all year |
| 003 | Copper, potentially dissolved | DAILY MX | report only | all year |
| 003 | Cadmium, potentially dissolvd | 30DA AVG | report only | all year |
| 003 | Cadmium, potentially dissolvd | DAILY MX | report only | all year |
| 003 | Lead, potentially dissolvd | 30DA AVG | report only | all year |
| 003 | Lead, potentially dissolvd | DAILY MX | report only | all year |
| 003 | Selenium, potentially dissolvd | 30DA AVG | report only | all year |
| 003 | Selenium, potentially dissolvd | DAILY MX | report only | all year |
| 003 | Oil and grease | 30DA AVG | <= 625 lb/d | all year |
| 003 | Oil and grease | DAILY MX | <= 1250 lb/d | all year |
| 003 | Flow, in conduit or thru treatment plant | 30DA AVG | <= 5.2 MGD | all year |
| 003 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 003 | Chlorine, total residual | 30DA AVG | <= .011 mg/L | all year |
| 003 | Chlorine, total residual | INST MAX | <= .019 mg/L | all year |
| 003 | Production divided by days operated mo. | 30DA AVG | report only | all year |
| 003 | Production divided by days operated mo. | DAILY MX | report only | all year |
| 003 | Sulfide-hydrogen sulfide [undissociated] | 30DA AVG | report only | all year |
| 003 | Mercury, total [as Hg] | 30DA AVG | report only | all year |
| 003 | Coliform, fecal general | 30DA GM | report only | all year |
| 003 | Coliform, fecal general | MV | <= 400 #/100mL | all year |
| 003 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | SINGSAMP | report only | all year |
| 003 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | MN VALUE | report only | all year |
| 003 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | MN VALUE | >= 100 tox chronic | all year |
| 003 | Static Renewal 7 Day Chronic Pimephales promelas | SINGSAMP | report only | all year |
| 003 | Static Renewal 7 Day Chronic Pimephales promelas | MN VALUE | report only | all year |
| 003 | Static Renewal 7 Day Chronic Pimephales promelas | MN VALUE | >= 100 tox chronic | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states