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Federal facility (Land, Mineral, Wildlife Conservation), major discharger, Loveland, Colorado. NPDES permit CO0021717 expired Dec 31, 2021; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | maximum weekly average | ≤ 17 deg C | Jun–Sep | 001 |
| Temperature, water deg. centigrade | maximum weekly average | ≤ 9 deg C | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec | 001 |
| Temperature, water deg. centigrade | daily maximum | ≤ 21.7 deg C | Jun–Sep | 001 |
| Temperature, water deg. centigrade | daily maximum | ≤ 13 deg C | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec | 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 | daily maximum | ≤ 45 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Iron, total recoverable | 30-day average | ≤ 1000 ug/L | all year | 001 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Selenium, total recoverable | 30-day average | ≤ 4.6 ug/L | all year | 001 |
| Selenium, total recoverable | daily maximum | ≤ 18.4 ug/L | all year | 001 |
| Barium, total [as Ba] | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Beryllium, total [as Be] | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Cobalt, total [as Co] | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Thallium, total [as Tl] | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Molybdenum, total [as Mo] | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year | 001 |
| Antimony, total [as Sb] | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Tin, total [as Sn] | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Titanium, total [as Ti] | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Zinc, potentially dissolved | 30-day average | ≤ 84 ug/L | all year | 001 |
| Zinc, potentially dissolved | daily maximum | ≤ 284 ug/L | all year | 001 |
| Silver, potentially dissolved | 30-day average | ≤ .035 ug/L | all year | 001 |
| Silver, potentially dissolved | daily maximum | ≤ .83 ug/L | all year | 001 |
| Copper, potentially dissolved | 30-day average | ≤ 14 ug/L | all year | 001 |
| Copper, potentially dissolved | daily maximum | ≤ 23 ug/L | all year | 001 |
| Aluminum, potentially dissolvd | 30-day average | ≤ 87 ug/L | all year | 001 |
| Aluminum, potentially dissolvd | daily maximum | ≤ 750 ug/L | all year | 001 |
| Cadmium, potentially dissolvd | 30-day average | ≤ .9 ug/L | all year | 001 |
| Cadmium, potentially dissolvd | daily maximum | ≤ 1.2 ug/L | all year | 001 |
| Lead, potentially dissolvd | 30-day average | ≤ 1.5 ug/L | all year | 001 |
| Lead, potentially dissolvd | daily maximum | ≤ 32 ug/L | all year | 001 |
| Total phenols | daily maximum | report only (ug/L) | Apr–Jun | 001 |
| Manganese, total recoverable | 30-day average | ≤ 1000 ug/L | all year | 001 |
| Manganese, total recoverable | daily maximum | ≤ 4694 ug/L | all year | 001 |
| Floating solids, waste or visible foam-visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 2.5 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 3.2 MGD | all year | 001 |
| Mercury, total [as Hg] | 30-day average | ≤ .01 ug/L | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (ug/L) | all year | 001 |
| Oil and grease visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 001 |
| Hardness, total [as CaCO3] | minimum | report only (mg/L) | all year | EF1 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | EF1 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) | all year | EF1 |
| Flow | monthly average | report only (cfs) | all year | EF1 |
| Flow | daily maximum | report only (cfs) | all year | EF1 |
| Hardness, total [as CaCO3] | minimum | report only (mg/L) | all year | EF2 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | EF2 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) | all year | EF2 |
| Flow | monthly average | report only (cfs) | all year | EF2 |
| Flow | daily maximum | report only (cfs) | all year | EF2 |
Cited limits by parameter: Colorado's rules and the federal ones.
Same industry: the 4 Administration of Environmental Quality and Housing Programs 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/CO0021717 · MCP: https://passage-data.com/mcp