NPDES permit CO0000591 · Major NON-POTW · administratively continued, expires 2020-05-31 · EPA's file as of 2026-09-19
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This permit expired on 2020-05-31 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.
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 | Arsenic, total recoverable | 30DA AVG | <= 7.6 ug/L | all year |
| 001 | Iron, total recoverable | 30DA AVG | <= 1000 ug/L | all year |
| 001 | Zinc, potentially dissolved | 30DA AVG | <= 505 ug/L | all year |
| 001 | Zinc, potentially dissolved | 30DA AVG | <= 505 ug/L | all year |
| 001 | Zinc, potentially dissolved | 30DA AVG | <= 166 ug/L | all year |
| 001 | Zinc, potentially dissolved | DAILY MX | <= 754 ug/L | all year |
| 001 | Zinc, potentially dissolved | DAILY MX | <= 219 ug/L | 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 | <= 12 ug/L | all year |
| 001 | Copper, potentially dissolved | DAILY MX | <= 19 ug/L | all year |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | all year |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Feb |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Mar |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Apr |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | May |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Jun |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Jul |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Aug |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Sep |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Oct |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Nov |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Dec |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 1.6 ug/L | Jan |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Jan |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Feb |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Mar |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Apr |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | May |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Jun |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Jul |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Aug |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Sep |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Oct |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Nov |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .55 ug/L | Dec |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 2.3 ug/L | all year |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Feb |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Mar |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Apr |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | May |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Jun |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Jul |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Aug |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Sep |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Oct |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Nov |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Dec |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Jan |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Jan |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Feb |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Mar |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Apr |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | May |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Jun |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Jul |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Aug |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Sep |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Oct |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Nov |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 4.5 ug/L | Dec |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0034 lb/d | Feb |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0038 lb/d | Mar |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0039 lb/d | Apr |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0032 lb/d | May |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0021 lb/d | Jun |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0019 lb/d | Jul |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0022 lb/d | Aug |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0023 lb/d | Sep |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0023 lb/d | Oct |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0027 lb/d | Nov |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0028 lb/d | Dec |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0056 lb/d | Jan |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0056 lb/d | Jan |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0034 lb/d | Feb |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0038 lb/d | Mar |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0039 lb/d | Apr |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0032 lb/d | May |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0021 lb/d | Jun |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0019 lb/d | Jul |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0022 lb/d | Aug |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0023 lb/d | Sep |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0023 lb/d | Oct |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0027 lb/d | Nov |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= .0028 lb/d | Dec |
| 001 | Lead, potentially dissolvd | 30DA AVG | <= 3.7 ug/L | all year |
| 001 | Lead, potentially dissolvd | DAILY MX | <= 94 ug/L | all year |
| 001 | Manganese, potentially dissolvd | 30DA AVG | <= 1850 ug/L | all year |
| 001 | Manganese, potentially dissolvd | DAILY MX | <= 3348 ug/L | all year |
| 001 | Nickel, potentially dissolvd | 30DA AVG | report only | all year |
| 001 | Nickel, potentially dissolvd | DAILY MX | report only | all year |
| 001 | Oil and grease | INST MAX | <= 10 mg/L | all year |
| 001 | Flow, in conduit or thru treatment plant | 30DA AVG | <= .43 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Chlorine, total residual | 30DA AVG | report only | all year |
| 001 | Chlorine, total residual | 30DA AVG | <= .011 mg/L | all year |
| 001 | Chlorine, total residual | INST MAX | <= .5 mg/L | all year |
| 001 | Chlorine, total residual | INST MAX | <= .019 mg/L | all year |
| 001 | Mercury, total low level | 30DA AVG | <= .2 ug/L | all year |
| 001 | Mercury, total low level | 30DA AVG | <= .01 ug/L | all year |
| 001 | Sulfide-hydrogen sulfide [undissociated] | 30DA AVG | <= .002 mg/L | all year |
| 001 | Oil and grease visual | DAILY MX | report only | all year |
| 001 | LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | MN VALUE | 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 | report only | 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