NPDES permit CO0049055 · Minor NON-POTW · effective, expires 2031-08-31 · EPA's file as of 2026-09-23
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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 | 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, settleable | DAILY MX | <= .2 mL/L | all year |
| 001 | Arsenic, total recoverable | 30DA AVG | report only | all year |
| 001 | Iron, total recoverable | 30DA AVG | report only | all year |
| 001 | Thallium, total recoverable | 30DA AVG | report only | all year |
| 001 | Beryllium, total recoverable [as Be] | 30DA AVG | report only | all year |
| 001 | Barium, total recoverable | 30DA AVG | report only | all year |
| 001 | Barium, total recoverable | DAILY MX | report only | all year |
| 001 | Iron, dissolved [as Fe] | DAILY MX | report only | all year |
| 001 | Manganese, dissolved [as Mn] | DAILY MX | report only | all year |
| 001 | Nickel, total recoverable | 30DA AVG | report only | all year |
| 001 | Aluminum, total recoverable | 30DA AVG | report only | all year |
| 001 | Aluminum, total recoverable | DAILY MX | report only | all year |
| 001 | Cadmium, total recoverable | 30DA AVG | report only | all year |
| 001 | Cadmium, total recoverable | DAILY MX | report only | all year |
| 001 | Lead, total recoverable | DAILY MX | report only | all year |
| 001 | Chromium, total recoverable | 30DA AVG | report only | all year |
| 001 | Chromium, total recoverable | DAILY MX | report only | all year |
| 001 | Molybdenum, total recoverable | 30DA AVG | report only | all year |
| 001 | Chromium, hexavalent dissolved [as Cr] | 30DA AVG | report only | all year |
| 001 | Chromium, hexavalent dissolved [as Cr] | DAILY MX | report only | all year |
| 001 | Antimony, total recoverable | 30DA AVG | report only | all year |
| 001 | Zinc, potentially dissolved | 30DA AVG | report only | all year |
| 001 | Zinc, potentially dissolved | DAILY MX | report only | all year |
| 001 | Silver, potentially dissolved | 30DA AVG | report only | all year |
| 001 | Silver, potentially dissolved | 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 | Arsenic, 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 | Chromium, trivalent, potentially dissolvd | 30DA AVG | 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 | Manganese, potentially dissolvd | 30DA AVG | report only | all year |
| 001 | Manganese, potentially dissolvd | DAILY MX | report only | all year |
| 001 | Nickel, potentially dissolvd | 30DA AVG | report only | all year |
| 001 | Nickel, 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 | INST MAX | <= 10 mg/L | all year |
| 001 | Chromium, trivalent total recoverable | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | 30DA AVG | <= .2 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | 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 | Sulfate | 30DA AVG | report only | all year |
| 001 | Boron, total | 30DA AVG | report only | all year |
| 001 | Oil and grease visual | INST MAX | report only | all year |
| 002 | Area inspection visual | 30DA AVG | report only | Dec |
| 002 | Area inspection visual | ANNL TOT | report only | all year |
| 003 | Area inspection visual | ANNL TOT | report only | all year |
| 003 | Area inspection visual | 30DA AVG | report only | Dec |
| 004 | Area inspection visual | ANNL TOT | report only | all year |
| 004 | Area inspection visual | 30DA AVG | report only | Dec |
| 005 | Area inspection visual | 30DA AVG | report only | Dec |
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