NPDES permit CO0000008 · Minor NON-POTW · administratively continued, expires 2018-09-30 · EPA's file as of 2026-09-19
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This permit expired on 2018-09-30 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 | 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 | Chloride [as Cl] | 30DA AVG | report only | all year |
| 001 | Arsenic, total recoverable | 30DA AVG | <= 3 ug/L | all year |
| 001 | Boron, total [as B] | 30DA AVG | report only | all year |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 300 ug/L | all year |
| 001 | Iron, dissolved [as Fe] | 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 | Manganese, potentially dissolvd | 30DA AVG | report only | all year |
| 001 | Manganese, potentially dissolvd | DAILY MX | report only | all year |
| 001 | Selenium, potentially dissolvd | 30DA AVG | <= 5.1 ug/L | all year |
| 001 | Selenium, potentially dissolvd | 30DA AVG | <= 4.6 ug/L | all year |
| 001 | Selenium, potentially dissolvd | DAILY MX | 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 | Radium 226 + radium 228, total | 30DA AVG | report only | all year |
| 001 | Benzene | 30DA AVG | report only | all year |
| 001 | Tetrachloroethylene | 30DA AVG | report only | all year |
| 001 | Vinyl chloride | 30DA AVG | <= 42 ug/L | all year |
| 001 | Mercury, total [as Hg] | 30DA AVG | report only | all year |
| 001 | Sulfate | 30DA AVG | report only | all year |
| 001 | Oil and grease visual | INST MAX | report only | all year |
| 001 | LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | MN VALUE | >= 100 % | all year |
| 001 | LC50 Static Renewal 96Hr Acute Pimephales promelas | MN VALUE | >= 100 % | 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