NPDES permit CO0038334 · Major NON-POTW · administratively continued, expires 2024-08-31 · EPA's file as of 2026-09-19
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This permit expired on 2024-08-31 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: Zinc, potentially dissolved (7), Static Renewal 7 Day Chronic Ceriodaphnia dubia (2), Silver, potentially dissolved (2).
Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. centigrade | MX WK AV | report only | all year |
| 001 | Temperature, water deg. centigrade | DAILY MX | report only | 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 | Cyanide, weak acid, dissociable | DAILY MX | report only | all year |
| 001 | Chloride [as Cl] | 30DA AVG | report only | all year |
| 001 | Arsenic, total recoverable | 30DA AVG | report only | all year |
| 001 | Arsenic, total recoverable | 30DA AVG | <= 14 ug/L | all year |
| 001 | Iron, total recoverable | 30DA AVG | <= 4000 ug/L | all year |
| 001 | Iron, total recoverable | 30DA AVG | <= 1012 ug/L | all year |
| 001 | Iron, total recoverable | ROLL AVG | report only | all year |
| 001 | Iron, total recoverable | ROLL AVG | <= 337 ug/L | all year |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Jan |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Feb |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Mar |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Apr |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | May |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Jun |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Jul |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Aug |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Sep |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Oct |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Nov |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | report only | Dec |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Jan |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Feb |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Mar |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Apr |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | May |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Jun |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Jul |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Aug |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Sep |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Oct |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Nov |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 306 ug/L | Dec |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 3.4 lb/d | Apr |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 3.9 lb/d | May |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 7.7 lb/d | Jun |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 6.5 lb/d | Jul |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 5.9 lb/d | Aug |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 5.3 lb/d | Sep |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 4.8 lb/d | Oct |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 3.4 lb/d | Apr |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 3.9 lb/d | May |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 7.7 lb/d | Jun |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 6.5 lb/d | Jul |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 5.9 lb/d | Aug |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 5.3 lb/d | Sep |
| 001 | Iron, dissolved [as Fe] | 30DA AVG | <= 4.8 lb/d | Oct |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Jan |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Feb |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Mar |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Apr |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | May |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Jun |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Jul |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Aug |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Sep |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Oct |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Nov |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 3000 ug/L | Dec |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | Jan |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | Feb |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | Mar |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | Apr |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | May |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | Jun |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | Jul |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | Aug |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | Sep |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | Oct |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 53 ug/L | Nov |
| 001 | Manganese, dissolved [as Mn] | DAILY MX | <= 53 ug/L | Dec |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .61 lb/d | Jan |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .61 lb/d | Feb |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .57 lb/d | Mar |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .57 lb/d | Apr |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .66 lb/d | May |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 1.33 lb/d | Jun |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 1.11 lb/d | Jul |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 1.01 lb/d | Aug |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .9 lb/d | Sep |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .82 lb/d | Oct |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .74 lb/d | Nov |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .68 lb/d | Dec |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .61 lb/d | Jan |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .61 lb/d | Feb |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .57 lb/d | Mar |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .57 lb/d | Apr |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .66 lb/d | May |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 1.33 lb/d | Jun |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 1.11 lb/d | Jul |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= 1.01 lb/d | Aug |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .82 lb/d | Sep |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .82 lb/d | Oct |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .74 lb/d | Nov |
| 001 | Manganese, dissolved [as Mn] | 30DA AVG | <= .68 lb/d | Dec |
| 001 | Nickel, total recoverable | 30DA AVG | report only | all year |
| 001 | Nickel, total recoverable | 30DA AVG | <= 101 ug/L | all year |
| 001 | Cadmium, total recoverable | 30DA AVG | <= 5.1 ug/L | all year |
| 001 | Cadmium, total recoverable | DAILY MX | report only | all year |
| 001 | Cadmium, total recoverable | ROLL AVG | report only | all year |
| 001 | Cadmium, total recoverable | ROLL AVG | <= 1.5 ug/L | all year |
| 001 | Lead, total recoverable | DAILY MX | report only | all year |
| 001 | Lead, total recoverable | DAILY MX | <= 51 ug/L | all year |
| 001 | Lead, total recoverable | ROLL AVG | report only | all year |
| 001 | Lead, total recoverable | ROLL AVG | <= 11 ug/L | all year |
| 001 | Chromium, total recoverable | DAILY MX | <= 50 ug/L | 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 | Chromium, hexavalent dissolved [as Cr] | ROLL AVG | report only | all year |
| 001 | Zinc, potentially dissolved | 30DA AVG | report only | all year |
| 001 | Zinc, potentially dissolved | 30DA AVG | <= 165 ug/L | all year |
| 001 | Zinc, potentially dissolved | DAILY MX | report only | all year |
| 001 | Zinc, potentially dissolved | DAILY MX | <= 235 ug/L | all year |
| 001 | Silver, potentially dissolved | 30DA AVG | <= .71 ug/L | all year |
| 001 | Silver, potentially dissolved | 30DA AVG | <= .092 ug/L | all year |
| 001 | Silver, potentially dissolved | DAILY MX | report only | all year |
| 001 | Silver, potentially dissolved | DAILY MX | <= 2.5 ug/L | all year |
| 001 | Copper, potentially dissolved | 30DA AVG | <= 160 ug/L | all year |
| 001 | Copper, potentially dissolved | 30DA AVG | <= 8.3 ug/L | all year |
| 001 | Copper, potentially dissolved | DAILY MX | <= 160 ug/L | all year |
| 001 | Copper, potentially dissolved | DAILY MX | <= 15 ug/L | all year |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= 3.2 ug/L | all year |
| 001 | Cadmium, potentially dissolvd | 30DA AVG | <= .46 ug/L | all year |
| 001 | Cadmium, potentially dissolvd | DAILY MX | report only | all year |
| 001 | Cadmium, potentially dissolvd | DAILY MX | <= 1.9 ug/L | all year |
| 001 | Lead, potentially dissolvd | 30DA AVG | <= 120 ug/L | all year |
| 001 | Lead, potentially dissolvd | 30DA AVG | <= 2.9 ug/L | all year |
| 001 | Lead, potentially dissolvd | DAILY MX | <= 120 ug/L | all year |
| 001 | Lead, potentially dissolvd | DAILY MX | <= 74 ug/L | all year |
| 001 | Lead, potentially dissolvd | ROLL AVG | report only | all year |
| 001 | Lead, potentially dissolvd | ROLL AVG | <= 2.9 ug/L | all year |
| 001 | Manganese, potentially dissolvd | 30DA AVG | <= 3000 ug/L | all year |
| 001 | Manganese, potentially dissolvd | DAILY MX | <= 3174 ug/L | all year |
| 001 | Nickel, potentially dissolvd | 30DA AVG | <= 75 ug/L | all year |
| 001 | Nickel, potentially dissolvd | 30DA AVG | <= 21 ug/L | all year |
| 001 | Nickel, potentially dissolvd | DAILY MX | report only | all year |
| 001 | Nickel, potentially dissolvd | DAILY MX | <= 525 ug/L | all year |
| 001 | Selenium, potentially dissolvd | 30DA AVG | <= 4.7 ug/L | all year |
| 001 | Selenium, potentially dissolvd | DAILY MX | <= 19 ug/L | all year |
| 001 | Selenium, potentially dissolvd | ROLL AVG | report only | all year |
| 001 | Selenium, potentially dissolvd | ROLL AVG | <= 1.1 ug/L | all year |
| 001 | Uranium, potentially dissolvd | 30DA AVG | report only | all year |
| 001 | Uranium, 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 | Uranium, total | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | 30DA AVG | <= 4.7 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Mercury, total [low level] | 30DA AVG | <= .63 ug/L | all year |
| 001 | Mercury, total [low level] | 30DA AVG | <= .01 ug/L | all year |
| 001 | Sulfide-hydrogen sulfide [undissociated] | 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 |
| 001 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | SINGSAMP | report only | all year |
| 001 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | MN VALUE | report only | all year |
| 001 | Static Renewal 7 Day Chronic Ceriodaphnia dubia | MN VALUE | >= 99 tox chronic | all year |
| 001 | Static Renewal 7 Day Chronic Pimephales promelas | SINGSAMP | report only | all year |
| 001 | Static Renewal 7 Day Chronic Pimephales promelas | MN VALUE | report only | all year |
| 001 | Static Renewal 7 Day Chronic Pimephales promelas | MN VALUE | >= 99 tox chronic | 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 |
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