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Amusement And Recreation, Ouray, Colorado. NPDES permit CO0048983 expired Mar 31, 2023; its limits still apply. Last 12 months: over a limit 2 times (last June 2026), 13 required values missing, 16 of 39 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit |
|---|---|---|---|
| May 2026 | pH, minimum | 5.6 SU | ≥ 6.5 SU |
| June 2026 | pH, minimum | 5.6 SU | ≥ 6.5 SU |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | maximum 7-day average | ≤ 45 mg/L | all year | 001 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Iron, total recoverable | 30-day average | ≤ 3050 ug/L | Jan, Feb, Mar, Nov, Dec | 001 |
| Iron, total recoverable | 30-day average | ≤ 3050 ug/L | Apr–Oct | 001 |
| Iron, total recoverable | 30-day average | ≤ 16.4 lb/d | Jan, Feb, Mar, Nov, Dec | 001 |
| Iron, total recoverable | 30-day average | ≤ 17.8 lb/d | Apr–Oct | 001 |
| Iron, dissolved [as Fe] | 30-day average | ≤ 3020 ug/L | all year | 001 |
| Nickel, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Lead, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Molybdenum, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Molybdenum, total recoverable | daily maximum | report only (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 | report only (ug/L) | all year | 001 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | all year | 001 |
| Silver, potentially dissolved | 30-day average | report only (ug/L) | all year | 001 |
| Silver, potentially dissolved | daily maximum | report only (ug/L) | all year | 001 |
| Copper, potentially dissolved | 30-day average | report only (ug/L) | Jan, Feb, Mar, Nov, Dec | 001 |
| Copper, potentially dissolved | 30-day average | report only (ug/L) | Apr–Oct | 001 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Jan, Feb, Mar, Nov, Dec | 001 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Apr–Oct | 001 |
| Copper, potentially dissolved | 30-day average | ≤ .3 lb/d | Jan, Feb, Mar, Nov, Dec | 001 |
| Copper, potentially dissolved | 30-day average | ≤ .4 lb/d | Apr–Oct | 001 |
| Copper, potentially dissolved | rolling average | report only (ug/L) | all year | 001 |
| Arsenic, potentially dissolved | 30-day average | report only (ug/L) | all year | 001 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | all year | 001 |
| Cadmium, potentially dissolvd | 30-day average | report only (ug/L) | Jan, Feb, Mar, Nov, Dec | 001 |
| Cadmium, potentially dissolvd | 30-day average | report only (ug/L) | Apr–Oct | 001 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Jan, Feb, Mar, Nov, Dec | 001 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Apr–Oct | 001 |
| Cadmium, potentially dissolvd | 30-day average | ≤ .116 lb/d | Jan, Feb, Mar, Nov, Dec | 001 |
| Cadmium, potentially dissolvd | 30-day average | ≤ .125 lb/d | Apr–Oct | 001 |
| Cadmium, potentially dissolvd | rolling average | report only (ug/L) | all year | 001 |
| Lead, potentially dissolvd | 30-day average | report only (ug/L) | all year | 001 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | all year | 001 |
| Manganese, potentially dissolvd | 30-day average | report only (ug/L) | all year | 001 |
| Manganese, potentially dissolvd | daily maximum | report only (ug/L) | all year | 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 | report only (ug/L) | all year | 001 |
| Selenium, 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 | daily maximum | report only (ug/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 1 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | 30-day average | ≤ .17 mg/L | all year | 001 |
| Chlorine, total residual | 30-day average | ≤ .14 mg/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .3 mg/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .21 mg/L | all year | 001 |
| E. coli | 30-day average | report only (#/100mL) | all year | 001 |
| E. coli | daily maximum | report only (#/100mL) | all year | 001 |
| Sulfide-hydrogen sulfide [undissociated] | 30-day average | report only (ug/L) | all year | 001 |
| Solids, total dissolved | 30-day average | report only (ug/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | 30-day average | report only (ug/L) | all year | 001 |
| Oil and grease visual | instantaneous maximum | report only (abst=0;prst=1) | all year | 001 |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | minimum value | report only (%) | all year | 001 |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | minimum value | ≥ 100 % | all year | 001 |
| LC50 Static Renewal 96Hr Acute Pimephales promelas | minimum value | report only (%) | all year | 001 |
| LC50 Static Renewal 96Hr Acute Pimephales promelas | minimum value | ≥ 100 % | all year | 001 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | all year | 002 |
| Iron, total recoverable | 30-day average | report only (ug/L) | all year | 002 |
| Iron, dissolved [as Fe] | 30-day average | report only (ug/L) | all year | 002 |
| Cadmium, total recoverable | 30-day average | report only (ug/L) | all year | 002 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Chromium, hexavalent dissolved [as Cr] | 30-day average | report only (ug/L) | all year | 002 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 002 |
| Zinc, potentially dissolved | 30-day average | report only (ug/L) | all year | 002 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | all year | 002 |
| Silver, potentially dissolved | 30-day average | report only (ug/L) | all year | 002 |
| Silver, potentially dissolved | daily maximum | report only (ug/L) | all year | 002 |
| Copper, potentially dissolved | 30-day average | report only (ug/L) | all year | 002 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | all year | 002 |
| Arsenic, potentially dissolved | 30-day average | report only (ug/L) | all year | 002 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | all year | 002 |
| Cadmium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 002 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | all year | 002 |
| Lead, potentially dissolvd | 30-day average | report only (ug/L) | all year | 002 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | all year | 002 |
| Nickel, potentially dissolvd | 30-day average | report only (ug/L) | all year | 002 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | all year | 002 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 002 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | all year | 002 |
| Chromium, trivalent total recoverable | 30-day average | report only (ug/L) | all year | 002 |
| Chromium, trivalent total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Sulfide-hydrogen sulfide [undissociated] | 30-day average | report only (ug/L) | all year | 002 |
| Mercury, total [as Hg] | 30-day average | report only (ug/L) | all year | 002 |
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | all year | UST |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | UST |
Cited limits by parameter: Colorado's rules and the federal ones.
Same industry: the 8 Amusement and Recreation Services permits in Colorado.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CO0048983 · MCP: https://passage-data.com/mcp