NPDES permit CO0040291 · Major POTW · administratively continued, expires 2016-10-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileSign-ups are not open yet. We counted that someone asked — not who, and not which permit — and we open them once enough people do. The check stays free.
This permit expired on 2016-10-31 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: E. coli (2), Nitrogen, inorganic total (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 | BOD, 5-day, 20 deg. C | 30DA AVG | <= 30 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX 7D AV | <= 45 mg/L | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | 30DA AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | MX 7D AV | <= 45 mg/L | all year |
| 001 | Phosphorus, total [as P] | 30DA AVG | <= .25 mg/L | all year |
| 001 | Oil and grease | INST MAX | <= 10 mg/L | all year |
| 001 | Flow, in conduit or thru treatment plant | 30DA AVG | <= 1.1 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | E. coli | 30DA AVG | <= 126 #/100mL | all year |
| 001 | E. coli | MX 7D AV | <= 252 #/100mL | all year |
| 001 | Oil and grease visual | INST MAX | report only | all year |
| 002 | Temperature, water deg. centigrade | MX WK AV | report only | all year |
| 002 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| 002 | BOD, 5-day, 20 deg. C | 30DA AVG | <= 30 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MX 7D AV | <= 45 mg/L | all year |
| 002 | pH | MINIMUM | >= 6.5 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Solids, total suspended | 30DA AVG | <= 30 mg/L | all year |
| 002 | Solids, total suspended | MX 7D AV | <= 45 mg/L | all year |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 7 mg/L | Jan |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 7.3 mg/L | Feb |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 8 mg/L | Mar |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 8.1 mg/L | Apr |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 6.2 mg/L | May |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 5 mg/L | Jun |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.8 mg/L | Jul |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 4 mg/L | Aug |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 4.4 mg/L | Sep |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 5.1 mg/L | Oct |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 6 mg/L | Nov |
| 002 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 7.4 mg/L | Dec |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30 mg/L | Jan |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30 mg/L | Feb |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30 mg/L | Mar |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30 mg/L | Apr |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30 mg/L | May |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 29 mg/L | Jun |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 27 mg/L | Jul |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30 mg/L | Aug |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30 mg/L | Sep |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30 mg/L | Oct |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30 mg/L | Nov |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30 mg/L | Dec |
| 002 | Nitrogen, inorganic total | DAILY MX | <= 10 mg/L | all year |
| 002 | Phosphorus, total [as P] | 30DA AVG | <= .05 mg/L | all year |
| 002 | Cyanide, weak acid, dissociable | DAILY MX | report only | all year |
| 002 | Chloride [as Cl] | 30DA AVG | report only | all year |
| 002 | Arsenic, total recoverable | 30DA AVG | report only | all year |
| 002 | Arsenic, total recoverable | DAILY MX | report only | all year |
| 002 | Iron, total recoverable | 30DA AVG | report only | all year |
| 002 | Iron, dissolved [as Fe] | 30DA AVG | <= 50 ug/L | all year |
| 002 | Manganese, dissolved [as Mn] | 30DA AVG | <= 50 ug/L | all year |
| 002 | Manganese, dissolved [as Mn] | DAILY MX | <= 3970 ug/L | all year |
| 002 | Zinc, potentially dissolved | 30DA AVG | <= 254 ug/L | all year |
| 002 | Zinc, potentially dissolved | DAILY MX | <= 293 ug/L | all year |
| 002 | Copper, potentially dissolved | 30DA AVG | report only | all year |
| 002 | Copper, potentially dissolved | 30DA AVG | <= 18 ug/L | all year |
| 002 | Copper, potentially dissolved | DAILY MX | report only | all year |
| 002 | Copper, potentially dissolved | DAILY MX | <= 29 ug/L | all year |
| 002 | Arsenic, potentially dissolved | 30DA AVG | report only | all year |
| 002 | Arsenic, 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 | Nickel, potentially dissolvd | 30DA AVG | report only | all year |
| 002 | Nickel, 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 | Chromium, trivalent total recoverable | 30DA AVG | report only | all year |
| 002 | Chromium, trivalent total recoverable | DAILY MX | report only | all year |
| 002 | Radium 226 + radium 228, total | 30DA AVG | report only | all year |
| 002 | Radium 226 + radium 228, total | DAILY MX | report only | all year |
| 002 | Uranium, total | 30DA AVG | report only | all year |
| 002 | Uranium, total | DAILY MX | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | 30DA AVG | <= 1.1 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 | E. coli | 30DA AVG | <= 84 #/100mL | all year |
| 002 | E. coli | MX 7D AV | <= 168 #/100mL | all year |
| 002 | Nonylphenol | 30DA AVG | report only | all year |
| 002 | Nonylphenol | DAILY MX | report only | all year |
| 002 | Mercury, total [as Hg] | 30DA AVG | report only | all year |
| 002 | Mercury, total [as Hg] | DAILY MX | report only | all year |
| 002 | BOD, 5-day, percent removal | MO AV MN | >= 85 % | all year |
| 002 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 002 | Sulfate | 30DA AVG | report only | all year |
| 002 | Oil and grease visual | INST MAX | report only | 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 | >= 94 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 | >= 94 tox chronic | all year |
| 300 | Plant capacity fact. percent of capacity | 30DA AVG | report only | all year |
| 300 | Plant capacity fact. percent of capacity | 30DA AVG | report only | all year |
| 300 | BOD, 5-day, 20 deg. C | 30DA AVG | report only | all year |
| 300 | BOD, 5-day, 20 deg. C | MX 7D AV | report only | all year |
| 300 | BOD, 5-day, 20 deg. C | 30DA AVG | report only | all year |
| 300 | BOD, 5-day, 20 deg. C | MX 7D AV | report only | all year |
| 300 | Solids, total suspended | 30DA AVG | report only | all year |
| 300 | Solids, total suspended | MX 7D AV | report only | all year |
| 300 | Flow, in conduit or thru treatment plant | 30DA AVG | report only | all year |
| 300 | Flow, in conduit or thru treatment plant | DAILY MX | report only | 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