Passage Data · Check a report · Use it from your AI
Gold Ores, San Luis, Colorado. NPDES permit CO0045675 expired Sep 30, 2019; its limits still apply. Last 12 months: no values over a limit, 2 required values missing, 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | all year |
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | all year |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | 30-day average | ≤ 20 mg/L | all year |
| Solids, total suspended | 30-day average | ≤ 20 mg/L | all year |
| Solids, total suspended | maximum 7-day average | ≤ 30 mg/L | all year |
| Solids, total suspended | maximum 7-day average | ≤ 30 mg/L | all year |
| Cyanide, weak acid, dissociable | daily maximum | ≤ 5 ug/L | all year |
| Cyanide, weak acid, dissociable | daily maximum | ≤ 5 mg/L | all year |
| Fluoride | daily maximum | ≤ 2.6 mg/L | all year |
| Fluoride | daily maximum | ≤ 3 mg/L | all year |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | all year |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | all year |
| Iron, total recoverable | 30-day average | ≤ 1000 ug/L | all year |
| Iron, total recoverable | 30-day average | ≤ 1000 ug/L | all year |
| Aluminum, total recoverable | 30-day average | report only (ug/L) | all year |
| Aluminum, total recoverable | 30-day average | report only (ug/L) | all year |
| Aluminum, total recoverable | 30-day average | ≤ 138 ug/L | all year |
| Aluminum, total recoverable | 30-day average | ≤ 168 ug/L | all year |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year |
| Aluminum, total recoverable | daily maximum | ≤ 2132 ug/L | all year |
| Aluminum, total recoverable | daily maximum | ≤ 2522 ug/L | all year |
| Aluminum, total recoverable | rolling average | ≤ 21 ug/L | all year |
| Aluminum, total recoverable | rolling average | report only (ug/L) | all year |
| Aluminum, total recoverable | rolling average | report only (ug/L) | all year |
| Aluminum, total recoverable | rolling average | ≤ 25 ug/L | all year |
| Chromium, total recoverable | 30-day average | report only (ug/L) | all year |
| Chromium, total recoverable | 30-day average | report only (ug/L) | all year |
| Chromium, total recoverable | 30-day average | ≤ 17 ug/L | all year |
| Chromium, total recoverable | 30-day average | ≤ 21 ug/L | all year |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year |
| Chromium, total recoverable | daily maximum | ≤ 23 ug/L | all year |
| Chromium, total recoverable | daily maximum | ≤ 27 ug/L | all year |
| Chromium, total recoverable | rolling average | ≤ 2.7 ug/L | all year |
| Chromium, total recoverable | rolling average | report only (ug/L) | all year |
| Chromium, total recoverable | rolling average | report only (ug/L) | all year |
| Chromium, total recoverable | rolling average | ≤ 13 ug/L | all year |
| Molybdenum, total recoverable | 30-day average | report only (ug/L) | all year |
| Molybdenum, total recoverable | 30-day average | report only (ug/L) | all year |
| Molybdenum, total recoverable | rolling average | report only (ug/L) | all year |
| Molybdenum, total recoverable | rolling average | report only (ug/L) | all year |
| Zinc, potentially dissolved | 30-day average | ≤ 37 ug/L | all year |
| Zinc, potentially dissolved | 30-day average | ≤ 51 ug/L | all year |
| Zinc, potentially dissolved | daily maximum | ≤ 170 ug/L | all year |
| Zinc, potentially dissolved | daily maximum | ≤ 201 ug/L | all year |
| Silver, potentially dissolved | 30-day average | ≤ .03 ug/L | all year |
| Silver, potentially dissolved | 30-day average | ≤ .03 ug/L | all year |
| Silver, potentially dissolved | daily maximum | ≤ 1.4 ug/L | all year |
| Silver, potentially dissolved | daily maximum | ≤ 1.7 ug/L | all year |
| Copper, potentially dissolved | 30-day average | ≤ 4 ug/L | all year |
| Copper, potentially dissolved | 30-day average | ≤ 5.3 ug/L | all year |
| Copper, potentially dissolved | daily maximum | ≤ 13 ug/L | all year |
| Copper, potentially dissolved | daily maximum | ≤ 16 ug/L | all year |
| Cadmium, potentially dissolvd | 30-day average | ≤ .4 ug/L | all year |
| Cadmium, potentially dissolvd | 30-day average | ≤ .53 ug/L | all year |
| Cadmium, potentially dissolvd | daily maximum | ≤ 1.7 ug/L | all year |
| Cadmium, potentially dissolvd | daily maximum | ≤ 2.1 ug/L | all year |
| Lead, potentially dissolvd | 30-day average | ≤ 1.2 ug/L | all year |
| Lead, potentially dissolvd | 30-day average | ≤ 1.5 ug/L | all year |
| Lead, potentially dissolvd | daily maximum | ≤ 61 ug/L | all year |
| Lead, potentially dissolvd | daily maximum | ≤ 72 ug/L | all year |
| Nickel, potentially dissolvd | 30-day average | ≤ 60 ug/L | all year |
| Nickel, potentially dissolvd | 30-day average | ≤ 73 ug/L | all year |
| Nickel, potentially dissolvd | daily maximum | ≤ 490 ug/L | all year |
| Nickel, potentially dissolvd | daily maximum | ≤ 579 ug/L | all year |
| Nickel, potentially dissolvd | rolling average | ≤ 11 ug/L | all year |
| Nickel, potentially dissolvd | rolling average | ≤ 9 ug/L | all year |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | all year |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | all year |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | all year |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | all year |
| Uranium, potentially dissolvd | 30-day average | ≤ 920 ug/L | all year |
| Uranium, potentially dissolvd | 30-day average | ≤ 920 ug/L | all year |
| Uranium, potentially dissolvd | daily maximum | ≤ 2272 ug/L | all year |
| Uranium, potentially dissolvd | daily maximum | ≤ 2685 ug/L | all year |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | all year |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | all year |
| Radium 226 + radium 228, total | 30-day average | report only (pCi/L) | all year |
| Radium 226 + radium 228, total | daily maximum | ≤ 5 pCi/L | all year |
| Radium 226 + radium 228, total | daily maximum | ≤ 5 pCi/L | all year |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .576 MGD | all year |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .36 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Sulfide-hydrogen sulfide [undissociated] | 30-day average | report only (ug/L) | all year |
| Sulfide-hydrogen sulfide [undissociated] | 30-day average | report only (mg/L) | all year |
| Mercury, total [as Hg] | 30-day average | report only (ug/L) | all year |
| Mercury, total [as Hg] | 30-day average | report only (ug/L) | all year |
| Mercury, total [as Hg] | rolling average | report only (ug/L) | all year |
| Mercury, total [as Hg] | rolling average | report only (ug/L) | all year |
| Oil and grease visual | instantaneous maximum | report only (abst=0;prst=1) | all year |
| Oil and grease visual | instantaneous maximum | report only (abst=0;prst=1) | all year |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | single sample | report only (tox chronic) | all year |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | single sample | report only (tox chronic) | all year |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum value | report only (tox chronic) | all year |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum value | report only (tox chronic) | all year |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum value | ≥ 63 tox chronic | all year |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum value | ≥ 52 tox chronic | all year |
| Static Renewal 7 Day Chronic Pimephales promelas | single sample | report only (tox chronic) | all year |
| Static Renewal 7 Day Chronic Pimephales promelas | single sample | report only (tox chronic) | all year |
| Static Renewal 7 Day Chronic Pimephales promelas | minimum value | report only (tox chronic) | all year |
| Static Renewal 7 Day Chronic Pimephales promelas | minimum value | report only (tox chronic) | all year |
| Static Renewal 7 Day Chronic Pimephales promelas | minimum value | ≥ 63 tox chronic | all year |
| Static Renewal 7 Day Chronic Pimephales promelas | minimum value | ≥ 52 tox chronic | all year |
Cited limits by parameter: Colorado's rules and the federal ones.
Same industry: the 30 Metal Mining permits in Colorado.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CO0045675 · MCP: https://passage-data.com/mcp