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Lead And Zinc Ores, Creede, Colorado. NPDES permit CO0048960, in force until Jul 31, 2031. No reports in EPA's file for the last 12 months. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Solids, total suspended | 30-day average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 001 |
| Arsenic, total recoverable | 30-day average | ≤ 3 ug/L | all year | 001 |
| Iron, total recoverable | 30-day average | ≤ 1000 ug/L | all year | 001 |
| Thallium, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Beryllium, total recoverable [as Be] | 30-day average | report only (ug/L) | all year | 001 |
| Barium, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Barium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Manganese, dissolved [as Mn] | 30-day average | ≤ 50 ug/L | all year | 001 |
| Thallium, dissolved [as Tl] | 30-day average | report only (ug/L) | all year | 001 |
| Nickel, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | 30-day average | ≤ 750 ug/L | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ 1500 ug/L | all year | 001 |
| Aluminum, total recoverable | 30-day average | ≤ 767 ug/L | all year | 001 |
| Aluminum, total recoverable | 30-day average | ≤ 767 ug/L | all year | 001 |
| Aluminum, total recoverable | daily maximum | ≤ 1471 ug/L | all year | 001 |
| Aluminum, total recoverable | daily maximum | ≤ 5730 ug/L | all year | 001 |
| Cadmium, total recoverable | 30-day average | ≤ 50 ug/L | all year | 001 |
| Cadmium, total recoverable | daily maximum | ≤ 100 ug/L | all year | 001 |
| Lead, total recoverable | 30-day average | ≤ 300 ug/L | all year | 001 |
| Lead, total recoverable | daily maximum | ≤ 600 ug/L | all year | 001 |
| Copper, total recoverable | 30-day average | ≤ 150 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ 300 ug/L | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | 30-day average | report only (ug/L) | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, potentially dissolved | 30-day average | ≤ 1558 ug/L | Apr–Jul | 001 |
| Zinc, potentially dissolved | 30-day average | ≤ 164 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Zinc, potentially dissolved | daily maximum | ≤ 1940 ug/L | Apr–Jul | 001 |
| Zinc, potentially dissolved | daily maximum | ≤ 857 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Silver, potentially dissolved | 30-day average | ≤ .56 ug/L | all year | 001 |
| Silver, potentially dissolved | 30-day average | ≤ .56 ug/L | all year | 001 |
| Silver, potentially dissolved | daily maximum | ≤ .7 ug/L | all year | 001 |
| Silver, potentially dissolved | daily maximum | ≤ 3.6 ug/L | all year | 001 |
| Copper, potentially dissolved | 30-day average | ≤ 5.3 ug/L | Apr–Jul | 001 |
| Copper, potentially dissolved | 30-day average | ≤ 12 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Copper, potentially dissolved | daily maximum | ≤ 7.5 ug/L | Apr–Jul | 001 |
| Copper, potentially dissolved | daily maximum | ≤ 18 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Beryllium, potentially dissolvd | 30-day average | ≤ .5 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Beryllium, potentially dissolvd | daily maximum | ≤ .83 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Cadmium, potentially dissolvd | 30-day average | ≤ 5.9 ug/L | Apr–Jul | 001 |
| Cadmium, potentially dissolvd | daily maximum | ≤ 7.1 ug/L | Apr–Jul | 001 |
| Cadmium, potentially dissolvd | 30-day average | ≤ .5 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Cadmium, potentially dissolvd | daily maximum | ≤ .83 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Chromium, trivalent, potentially dissolvd | 30-day average | report only (ug/L) | all year | 001 |
| Chromium, trivalent, potentially dissolvd | daily maximum | report only (ug/L) | all year | 001 |
| Lead, potentially dissolvd | 30-day average | ≤ 1.68 ug/L | Apr–Jul | 001 |
| Lead, potentially dissolvd | 30-day average | ≤ 3.6 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Lead, potentially dissolvd | daily maximum | ≤ 33 ug/L | Apr–Jul | 001 |
| Lead, potentially dissolvd | daily maximum | ≤ 92 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Manganese, potentially dissolvd | 30-day average | ≤ 1343 ug/L | Apr–Jul | 001 |
| Manganese, potentially dissolvd | 30-day average | ≤ 1429 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Manganese, potentially dissolvd | 30-day average | ≤ 1343 ug/L | Apr–Jul | 001 |
| Manganese, potentially dissolvd | daily maximum | ≤ 2462 ug/L | Apr–Jul | 001 |
| Manganese, potentially dissolvd | daily maximum | ≤ 3332 ug/L | Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec | 001 |
| Manganese, potentially dissolvd | daily maximum | ≤ 2432 ug/L | Apr–Jul | 001 |
| Nickel, potentially dissolvd | 30-day average | report only (ug/L) | all year | 001 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | all year | 001 |
| Selenium, potentially dissolvd | 30-day average | ≤ 4.6 ug/L | all year | 001 |
| Selenium, potentially dissolvd | daily maximum | ≤ 18 ug/L | all year | 001 |
| Uranium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 001 |
| Uranium, potentially dissolvd | daily maximum | report only (ug/L) | all year | 001 |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | all year | 001 |
| Chromium, trivalent total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Radium 226 & 228, dissolved | 30-day average | report only (pCi/L) | all year | 001 |
| Radium 226 + radium 228, total | 30-day average | report only (pCi/L) | all year | 001 |
| Uranium, total | 30-day average | report only (ug/L) | all year | 001 |
| Chlorine, total residual | 30-day average | ≤ .011 mg/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .019 mg/L | all year | 001 |
| Mercury, total [low level] | 30-day average | ≤ .01 ug/L | all year | 001 |
| Mercury, total [low level] | daily maximum | ≤ 2 ug/L | all year | 001 |
| Sulfide-hydrogen sulfide [undissociated] | 30-day average | report only (mg/L) | all year | 001 |
| Sulfate | 30-day average | report only (mg/L) | all year | 001 |
| Oil and grease visual | instantaneous maximum | report only (abst=0;prst=1) | all year | 001 |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | single sample | report only (tox chronic) | all year | 001 |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum value | report only (tox chronic) | all year | 001 |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum value | ≥ 100 tox chronic | all year | 001 |
| Static Renewal 7 Day Chronic Pimephales promelas | single sample | report only (tox chronic) | all year | 001 |
| Static Renewal 7 Day Chronic Pimephales promelas | minimum value | report only (tox chronic) | all year | 001 |
| Static Renewal 7 Day Chronic Pimephales promelas | minimum value | ≥ 100 tox chronic | all year | 001 |
| Area inspection visual | instantaneous maximum | report only (pass=0;fail=1) | all year | 002 |
| Area inspection visual | instantaneous maximum | report only (pass=0;fail=1) | Dec | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | all year | 003 |
| Iron, total recoverable | 30-day average | report only (ug/L) | all year | 003 |
| Iron, dissolved [as Fe] | 30-day average | report only (ug/L) | all year | 003 |
| Manganese, dissolved [as Mn] | 30-day average | report only (ug/L) | all year | 003 |
| Nickel, total recoverable | 30-day average | report only (ug/L) | all year | 003 |
| Cadmium, total recoverable | 30-day average | report only (ug/L) | all year | 003 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Chromium, hexavalent dissolved [as Cr] | 30-day average | report only (ug/L) | all year | 003 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 003 |
| Zinc, potentially dissolved | 30-day average | report only (ug/L) | all year | 003 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | all year | 003 |
| Silver, potentially dissolved | 30-day average | report only (ug/L) | all year | 003 |
| Silver, potentially dissolved | daily maximum | report only (ug/L) | all year | 003 |
| Copper, potentially dissolved | 30-day average | report only (ug/L) | all year | 003 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | all year | 003 |
| Cadmium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 003 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | all year | 003 |
| Chromium, trivalent, potentially dissolvd | 30-day average | report only (ug/L) | all year | 003 |
| Chromium, trivalent, potentially dissolvd | daily maximum | report only (ug/L) | all year | 003 |
| Lead, potentially dissolvd | 30-day average | report only (ug/L) | all year | 003 |
| Lead, potentially dissolvd | daily maximum | report only (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 |
| Nickel, potentially dissolvd | 30-day average | report only (ug/L) | all year | 003 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | all year | 003 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 003 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | all year | 003 |
| Chromium, trivalent total recoverable | 30-day average | report only (ug/L) | all year | 003 |
| Mercury, total low level | 30-day average | report only (ug/L) | all year | 003 |
| Area inspection visual | instantaneous maximum | report only (pass=0;fail=1) | all year | 003 |
| Area inspection visual | instantaneous maximum | report only (pass=0;fail=1) | Dec | 003 |
| Area inspection visual | instantaneous maximum | report only (pass=0;fail=1) | all year | 004 |
| Area inspection visual | instantaneous maximum | report only (pass=0;fail=1) | Dec | 004 |
| Area inspection visual | instantaneous maximum | report only (pass=0;fail=1) | all year | 005 |
| Area inspection visual | instantaneous maximum | report only (pass=0;fail=1) | Dec | 005 |
| Area inspection visual | instantaneous maximum | report only (pass=0;fail=1) | Dec | 006 |
Cited limits by parameter: Colorado's rules and the federal ones.
Same industry: the 30 Metal Mining permits in Colorado.
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