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Sewage treatment plant, major discharger, Fraser, Colorado. NPDES permit CO0040142, in force until Jun 30, 2031. Last 12 months: over a limit 5 times (last August 2026), 4 required values missing, 3 of 31 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Copper, total recoverable, 30-day average | 24.2 ug/L | ≤ 19 ug/L | 27% |
| October 2025 | Copper, total recoverable, daily maximum | 27.8 ug/L | ≤ 23 ug/L | 21% |
| June 2026 | E. coli, maximum 7-day geometric mean | 597 #/100mL | ≤ 222 #/100mL | 169% |
| July 2026 | Phosphorus, total [as P], annual median | 3.31 mg/L | ≤ 1 mg/L | 231% |
| August 2026 | Phosphorus, total [as P], annual median | 3.35 mg/L | ≤ 1 mg/L | 235% |
| 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 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | maximum 7-day average | ≤ 45 mg/L | 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 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 12 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 19 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 20 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 8.7 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 14 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 18 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 5.6 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 5.8 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 17 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 15 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 13 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 7.4 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 22 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 42 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 50 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 16 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 27 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 50 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 14 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 41 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 47 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 35 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 2.2 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 3.1 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 2 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 2.9 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 2.2 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 2.3 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 4 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 3.4 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 6.2 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 9.8 mg/L | Mar | 001 |
| Nitrogen, nitrite total [as N] | 30-day average | report only (mg/L) | all year | 001 |
| Nitrogen, inorganic total | daily maximum | ≤ 29 mg/L | all year | 001 |
| Nitrogen, inorganic total | rolling average | report only (mg/L) | all year | 001 |
| Nitrogen, inorganic total | annual median | ≤ 15 mg/L | all year | 001 |
| Nitrogen, inorganic total | 95th percentile | ≤ 20 mg/L | all year | 001 |
| Phosphorus, total [as P] | annual median | ≤ 1 mg/L | all year | 001 |
| Phosphorus, total [as P] | 95th percentile | report only (mg/L) | all year | 001 |
| Cyanide, weak acid, dissociable | daily maximum | ≤ 15 ug/L | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 001 |
| Chloride [as Cl] | 30-day average | report only (mg/L) | all year | 001 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Arsenic, total recoverable | rolling average | report only (ug/L) | all year | 001 |
| Iron, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Iron, total recoverable | rolling average | report only (ug/L) | all year | 001 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year | 001 |
| Iron, dissolved [as Fe] | 30-day average | report only (ug/L) | all year | 001 |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year | 001 |
| Manganese, dissolved [as Mn] | 30-day average | report only (ug/L) | all year | 001 |
| Molybdenum, total [as Mo] | daily maximum | report only (ug/L) | all year | 001 |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year | 001 |
| Nickel, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Silver, total [as Ag] | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year | 001 |
| Aluminum, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Aluminum, total recoverable | daily maximum | 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 | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total recoverable | rolling average | report only (ug/L) | all year | 001 |
| Molybdenum, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Selenium, total [as Se] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | 30-day average | ≤ 17 ug/L | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | ≤ 31 ug/L | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | rolling average | report only (ug/L) | all year | 001 |
| Zinc, potentially dissolved | 30-day average | ≤ 265 ug/L | all year | 001 |
| Zinc, potentially dissolved | daily maximum | ≤ 274 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 | ≤ 20 ug/L | all year | 001 |
| Copper, potentially dissolved | daily maximum | ≤ 21 ug/L | all year | 001 |
| Copper, potentially dissolved | rolling average | report only (ug/L) | all year | 001 |
| Cadmium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 001 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | all year | 001 |
| Cadmium, potentially dissolvd | rolling average | report only (ug/L) | all year | 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 | report only (ug/L) | all year | 001 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | all year | 001 |
| Lead, potentially dissolvd | rolling average | 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 | ≤ 15 ug/L | all year | 001 |
| Selenium, potentially dissolvd | daily maximum | ≤ 54 ug/L | all year | 001 |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | all year | 001 |
| Total phenols | daily maximum | report only (ug/L) | all year | 001 |
| Uranium, total | 30-day average | report only (ug/L) | all year | 001 |
| Uranium, total | daily maximum | report only (ug/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 2.499 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 | ≤ .016 mg/L | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .062 mg/L | all year | 001 |
| Mercury, total [low level] | 30-day average | report only (ug/L) | all year | 001 |
| E. coli | 30-day geometric mean | ≤ 111 #/100mL | all year | 001 |
| E. coli | maximum 7-day geometric mean | ≤ 222 #/100mL | all year | 001 |
| Sulfide-hydrogen sulfide [undissociated] | 30-day average | report only (mg/L) | all year | 001 |
| Nonylphenol | 30-day average | ≤ 27 ug/L | all year | 001 |
| Nonylphenol | daily maximum | ≤ 87 ug/L | all year | 001 |
| Nonylphenol | rolling average | report only (ug/L) | all year | 001 |
| Solids, total dissolved | 30-day average | report only (mg/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total dissolved | 30-day average | report only (mg/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (ug/L) | all year | 001 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Sulfate | 30-day average | report only (mg/L) | all year | 001 |
| Boron, total | 30-day average | report only (mg/L) | all year | 001 |
| Oil and grease visual | instantaneous maximum | report only (N=0;Y=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 | ≥ 24 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 | ≥ 24 tox chronic | all year | 001 |
| Plant capacity fact. percent of capacity | 30-day average | report only (%) | all year | 300 |
| Plant capacity fact. percent of capacity | 30-day average | report only (%) | all year | 300 |
| BOD, 5-day, 20 deg. C | 30-day average | report only (mg/L) | all year | 300 |
| BOD, 5-day, 20 deg. C | maximum 7-day average | report only (mg/L) | all year | 300 |
| BOD, 5-day, 20 deg. C | 30-day average | report only (lb/d) | all year | 300 |
| BOD, 5-day, 20 deg. C | maximum 7-day average | report only (lb/d) | all year | 300 |
| Solids, total suspended | 30-day average | report only (mg/L) | all year | 300 |
| Solids, total suspended | maximum 7-day average | report only (mg/L) | all year | 300 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | all year | 300 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 300 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 300 |
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | all year | UST1 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | UST1 |
Cited limits by parameter: Colorado's rules and the federal ones.
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