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Bituminous Coal - Underground, major discharger, Hayden, Colorado. NPDES permit CO0048275 expired Dec 31, 2020; its limits still apply. Last 12 months: over a limit once (last March 2026), 1 of 67 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| March 2026 | Flow, in conduit or thru treatment plant, 30-day average | .062 MGD | ≤ .055 MGD | 13% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 35 mg/L | all year | 002 |
| Solids, total suspended | maximum 7-day average | ≤ 70 mg/L | all year | 002 |
| Iron, total recoverable | 30-day average | ≤ 1000 ug/L | all year | 002 |
| Iron, total recoverable | daily maximum | ≤ 6000 ug/L | all year | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 4.6 ug/L | Jan | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 4.6 ug/L | Feb | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 14 ug/L | Mar | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 5.9 ug/L | Apr | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 10 ug/L | May | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 8.7 ug/L | Jun | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 11 ug/L | Jul | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 4.6 ug/L | Aug | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 4.6 ug/L | Sep | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 4.6 ug/L | Oct | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 4.6 ug/L | Nov | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 4.6 ug/L | Dec | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 8 ug/L | Mar | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 5.1 ug/L | Apr | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 6.7 ug/L | May | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 6.2 ug/L | Jun | 002 |
| Selenium, potentially dissolvd | 30-day average | ≤ 7 ug/L | Jul | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jan | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Feb | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Apr | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | May | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jun | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jul | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Aug | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Oct | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Nov | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Dec | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Sep | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jan | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Feb | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Mar | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Apr | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | May | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jun | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jul | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Aug | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Sep | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Oct | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Nov | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Dec | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Mar | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Apr | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | May | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jun | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jul | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jan | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Feb | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Apr | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | May | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jun | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jul | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Aug | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Oct | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Nov | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Dec | 002 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Sep | 002 |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .4833 MGD | Jan | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .4833 MGD | Feb | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .24 MGD | Mar | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 2.155 MGD | Apr | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 2.152 MGD | May | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .628 MGD | Jun | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .384 MGD | Jul | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .4833 MGD | Aug | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .4833 MGD | Sep | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .4833 MGD | Oct | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .4833 MGD | Nov | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .4833 MGD | Dec | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .978 MGD | Mar | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 7.088 MGD | Apr | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 7.128 MGD | May | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 1.88 MGD | Jun | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 1.38 MGD | Jul | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .588 MGD | Aug | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .588 MGD | Sep | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .588 MGD | Oct | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .588 MGD | Nov | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .588 MGD | Dec | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .588 MGD | Jan | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .588 MGD | Feb | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jan | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Feb | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Mar | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Apr | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | May | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jul | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Aug | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Sep | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Oct | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Nov | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Mar | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Apr | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | May | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jul | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Aug | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Sep | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Oct | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Nov | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jan | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Feb | 002 |
| Oil and grease visual | instantaneous maximum | report only (abst=0;prst=1) | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | 30-day average | ≤ 35 mg/L | all year | 003 |
| Solids, total suspended | maximum 7-day average | ≤ 70 mg/L | all year | 003 |
| Iron, total recoverable | 30-day average | ≤ 1000 ug/L | all year | 003 |
| Iron, total recoverable | daily maximum | ≤ 6000 ug/L | all year | 003 |
| Manganese, potentially dissolvd | 30-day average | report only (ug/L) | all year | 003 |
| Manganese, potentially dissolvd | daily maximum | report only (ug/L) | all year | 003 |
| Selenium, potentially dissolvd | 30-day average | ≤ 4.6 ug/L | all year | 003 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 003 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | all year | 003 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | all year | 003 |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .1195 MGD | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Oil and grease visual | instantaneous maximum | report only (abst=0;prst=1) | all year | 003 |
| Solids, total dissolved | 30-day average | ≤ 5000 mg/L | Aug | 004 |
| Solids, total dissolved | 30-day average | ≤ 5000 mg/L | Sep | 004 |
| Solids, total dissolved | 30-day average | ≤ 5000 mg/L | Oct | 004 |
| pH | minimum | ≥ 6.5 SU | all year | 005 |
| pH | maximum | ≤ 9 SU | all year | 005 |
| Iron, total recoverable | 30-day average | ≤ 1000 ug/L | all year | 005 |
| Manganese, potentially dissolvd | 30-day average | report only (ug/L) | all year | 005 |
| Manganese, potentially dissolvd | daily maximum | report only (ug/L) | all year | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Feb | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Mar | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Apr | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | May | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jun | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jul | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Aug | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Sep | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Oct | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Nov | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Dec | 005 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jan | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Feb | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Mar | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Apr | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | May | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jun | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jul | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Aug | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Sep | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Oct | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Nov | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Dec | 005 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jan | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .023 MGD | Jan | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .023 MGD | Feb | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .033 MGD | Mar | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .094 MGD | Apr | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .038 MGD | May | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .027 MGD | Jun | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .02 MGD | Jul | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .023 MGD | Aug | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .023 MGD | Sep | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .023 MGD | Oct | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .023 MGD | Nov | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .023 MGD | Dec | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .007 MGD | Mar | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .201 MGD | Apr | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .178 MGD | May | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .113 MGD | Jun | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .038 MGD | Jul | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .034 MGD | Aug | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .038 MGD | Sep | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .034 MGD | Oct | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .034 MGD | Nov | 005 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .034 MGD | Dec | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jan | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Feb | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Mar | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Apr | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | May | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jul | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Aug | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Sep | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Oct | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Nov | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Mar | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Apr | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | May | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jul | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Aug | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Sep | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Oct | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Nov | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 005 |
| Solids, total dissolved | 30-day average | ≤ 17470 mg/L | May | 005 |
| Solids, total dissolved | 30-day average | ≤ 8504 mg/L | Jun | 005 |
| Solids, total dissolved | 30-day average | ≤ 9747 mg/L | Jul | 005 |
| Solids, total dissolved | 30-day average | ≤ 5100 mg/L | Aug | 005 |
| Solids, total dissolved | 30-day average | ≤ 5120 mg/L | Sep | 005 |
| Solids, total dissolved | 30-day average | ≤ 5170 mg/L | Oct | 005 |
| Solids, total dissolved | 30-day average | report only (mg/L) | all year | 005 |
| pH | minimum | ≥ 6.5 SU | all year | 006 |
| pH | maximum | ≤ 9 SU | all year | 006 |
| Iron, total recoverable | 30-day average | ≤ 1000 ug/L | all year | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jan | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Feb | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Mar | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Apr | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | May | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jun | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jul | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Aug | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Sep | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Oct | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Nov | 006 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Dec | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jan | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Feb | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Mar | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Apr | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | May | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jun | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Jul | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Aug | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Sep | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Oct | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Nov | 006 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18.4 ug/L | Dec | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .115 MGD | Jan | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .115 MGD | Feb | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .04 MGD | Mar | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .275 MGD | Apr | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .154 MGD | May | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .134 MGD | Jun | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .057 MGD | Jul | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .115 MGD | Aug | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .115 MGD | Sep | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .115 MGD | Oct | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .115 MGD | Nov | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .115 MGD | Dec | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .055 MGD | Mar | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .355 MGD | Apr | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .352 MGD | May | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .182 MGD | Jun | 006 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .12 MGD | Jul | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jan | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Feb | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Mar | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Apr | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | May | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jul | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Aug | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Sep | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Oct | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Nov | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Mar | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Apr | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | May | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jul | 006 |
| Solids, total dissolved | 30-day average | ≤ 5000 mg/L | May | 006 |
| Solids, total dissolved | 30-day average | ≤ 5000 mg/L | Jun | 006 |
| Solids, total dissolved | 30-day average | ≤ 5000 mg/L | Jul | 006 |
| Solids, total dissolved | 30-day average | ≤ 5000 mg/L | Aug | 006 |
| Solids, total dissolved | 30-day average | ≤ 5000 mg/L | Sep | 006 |
| Solids, total dissolved | 30-day average | ≤ 5000 mg/L | Oct | 006 |
| Solids, total dissolved | 30-day average | report only (mg/L) | all year | 006 |
| pH | minimum | ≥ 6.5 SU | all year | 007 |
| pH | maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | 30-day average | ≤ 35 mg/L | all year | 007 |
| Solids, total suspended | maximum 7-day average | ≤ 70 mg/L | all year | 007 |
| Iron, total recoverable | 30-day average | ≤ 1000 ug/L | all year | 007 |
| Iron, total recoverable | daily maximum | ≤ 6000 ug/L | all year | 007 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | all year | 007 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | all year | 007 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | all year | 007 |
| Chromium, trivalent, potentially dissolvd | daily maximum | report only (ug/L) | all year | 007 |
| Manganese, potentially dissolvd | 30-day average | report only (ug/L) | all year | 007 |
| Manganese, potentially dissolvd | 30-day average | report only (ug/L) | all year | 007 |
| Manganese, potentially dissolvd | daily maximum | report only (ug/L) | all year | 007 |
| Manganese, potentially dissolvd | daily maximum | report only (ug/L) | all year | 007 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 007 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | all year | 007 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Mercury, total low level | daily maximum | report only (ug/L) | all year | 007 |
| Oil and grease visual | instantaneous maximum | report only (abst=0;prst=1) | all year | 007 |
Cited limits by parameter: Colorado's rules and the federal ones.
Same industry: the 19 Coal Mining permits in Colorado.
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Your permit document is the final word. As JSON: /api/v1/permits/CO0048275 · MCP: https://passage-data.com/mcp