NPDES permit CO0027961 · Minor POTW · administratively continued, expires 2023-06-30 · EPA's file as of 2026-09-19
Check this month's numbers before you fileThis permit expired on 2023-06-30 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.
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 | Temperature, water deg. centigrade | MX WK AV | report only | all year |
| 001 | Temperature, water deg. centigrade | MAXIMUM | report only | all year |
| 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 | BOD, 5-day, 20 deg. C | 30DA AVG | <= 200 lb/d | all year |
| 001 | pH | MINIMUM | >= 6.5 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 | Solids, total suspended | 30DA AVG | <= 200 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 5.1 mg/L | Apr |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 8 mg/L | Jan |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 5.4 mg/L | Feb |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 15 mg/L | Aug |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 6.2 mg/L | Jun |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 5.9 mg/L | Jul |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 8.7 mg/L | May |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 12 mg/L | Mar |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 10 mg/L | Dec |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 9.4 mg/L | Sep |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 9.4 mg/L | Nov |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 9.4 mg/L | Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 65 mg/L | Apr |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 29 mg/L | Jan |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 29 mg/L | Feb |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 65 mg/L | Aug |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 65 mg/L | Jun |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 65 mg/L | Jul |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 65 mg/L | May |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 50 mg/L | Mar |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 31 mg/L | Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 65 mg/L | Sep |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 46 mg/L | Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 65 mg/L | Oct |
| 001 | Nitrogen, inorganic total | DAILY MX | report only | all year |
| 001 | Nitrogen, inorganic total | DAILY MX | <= 79 mL/L | all year |
| 001 | Nitrogen, inorganic total | ROLL AVG | report only | all year |
| 001 | Zinc, potentially dissolved | 30DA AVG | <= 353 ug/L | all year |
| 001 | Zinc, potentially dissolved | 30DA AVG | <= 217 ug/L | all year |
| 001 | Zinc, potentially dissolved | DAILY MX | report only | all year |
| 001 | Zinc, potentially dissolved | DAILY MX | <= 248 ug/L | all year |
| 001 | Zinc, potentially dissolved | 30DA AVG | <= .97 lb/d | all year |
| 001 | Copper, potentially dissolved | 30DA AVG | <= 12 mg/L | all year |
| 001 | Copper, potentially dissolved | DAILY MX | report only | all year |
| 001 | Copper, potentially dissolved | 30DA AVG | <= .031 lb/d | all year |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .31 ug/L | all year |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 1.2 ug/L | all year |
| 001 | Lead, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | all year |
| 001 | Lead, potentially dissolvd | DAILY MX | report only | all year |
| 001 | Lead, potentially dissolvd | 30DA AVG | <= .007 lb/d | all year |
| 001 | Oil and grease | INST MAX | <= 10 mg/L | all year |
| 001 | Flow, in conduit or thru treatment plant | 30DA AVG | <= .8 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Chlorine, total residual | 30DA AVG | <= .048 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .15 mg/L | all year |
| 001 | E. coli | 30DA GM | <= 804 #/100mL | all year |
| 001 | E. coli | MX 7D GM | <= 1608 #/100mL | all year |
| 001 | BOD, 5-day, percent removal | MO AV MN | >= 85 % | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 001 | Oil and grease visual | INST MAX | report only | 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 |
| UST1 | Temperature, water deg. centigrade | MX WK AV | report only | all year |
| UST1 | Temperature, water deg. centigrade | 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