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Sewage treatment plant, major discharger, Fountain, Colorado. NPDES permit CO0000005 expired Jun 30, 2018; its limits still apply. Last 12 months: no values over a limit, 2 of 28 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| 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 | report only (mg/L) | Jan | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Feb | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Mar | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 31 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 43 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Jun | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Jul | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Aug | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Sep | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 36 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 39 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Feb | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | May | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jun | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jul | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Dec | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 14 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 14 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 15 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 10 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 13 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 18 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 27 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 24 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 19 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 13 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 11 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | rolling average | ≤ 13 mg/L | Dec | 001 |
| Nitrogen, inorganic total | 30-day average | report only (mg/L) | all year | 001 |
| Nitrogen, inorganic total | 30-day average | ≤ 15 mg/L | all year | 001 |
| Nitrogen, inorganic total | rolling average | report only (mg/L) | all year | 001 |
| Nitrogen, inorganic total | rolling average | ≤ 20 mg/L | all year | 001 |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | rolling average | report only (mg/L) | all year | 001 |
| Cyanide, weak acid, dissociable | daily maximum | ≤ 5.2 ug/L | all year | 001 |
| Cyanide, weak acid, dissociable | daily maximum | ≤ 5.2 ug/L | all year | 001 |
| Cyanide, weak acid, dissociable | rolling average | ≤ .93 ug/L | all year | 001 |
| Cyanide, weak acid, dissociable | rolling average | ≤ .93 ug/L | all year | 001 |
| Arsenic, total recoverable | 30-day average | ≤ 100 ug/L | all year | 001 |
| Arsenic, total recoverable | rolling average | ≤ 15.8 ug/L | all year | 001 |
| Iron, total recoverable | 30-day average | ≤ 1000 ug/L | all year | 001 |
| Manganese, dissolved [as Mn] | 30-day average | ≤ 2597 ug/L | all year | 001 |
| Manganese, dissolved [as Mn] | daily maximum | ≤ 4543 ug/L | all year | 001 |
| Manganese, dissolved [as Mn] | rolling average | ≤ 515 ug/L | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | 30-day average | ≤ 11.9 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 | ≤ 17 ug/L | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | rolling average | ≤ 2.4 ug/L | all year | 001 |
| Zinc, potentially dissolved | 30-day average | ≤ 352 ug/L | all year | 001 |
| Zinc, potentially dissolved | 30-day average | report only (ug/L) | all year | 001 |
| Zinc, potentially dissolved | daily maximum | ≤ 393 ug/L | all year | 001 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, potentially dissolved | rolling average | ≤ 96 ug/L | all year | 001 |
| Zinc, potentially dissolved | rolling average | report only (ug/L) | all year | 001 |
| Silver, potentially dissolved | 30-day average | ≤ 2.5 ug/L | all year | 001 |
| Silver, potentially dissolved | 30-day average | report only (ug/L) | all year | 001 |
| Silver, potentially dissolved | daily maximum | ≤ 15 ug/L | all year | 001 |
| Silver, potentially dissolved | daily maximum | report only (ug/L) | all year | 001 |
| Silver, potentially dissolved | rolling average | ≤ .49 ug/L | all year | 001 |
| Silver, potentially dissolved | rolling average | report only (ug/L) | all year | 001 |
| Copper, potentially dissolved | 30-day average | ≤ 26 ug/L | all year | 001 |
| Copper, potentially dissolved | daily maximum | ≤ 41 ug/L | all year | 001 |
| Copper, potentially dissolved | rolling average | ≤ 9.2 ug/L | all year | 001 |
| Arsenic, potentially dissolved | daily maximum | ≤ 354 ug/L | all year | 001 |
| Cadmium, potentially dissolvd | 30-day average | ≤ 1.1 ug/L | all year | 001 |
| Cadmium, potentially dissolvd | daily maximum | ≤ 17 ug/L | all year | 001 |
| Cadmium, potentially dissolvd | rolling average | ≤ .37 ug/L | all year | 001 |
| Lead, potentially dissolvd | 30-day average | ≤ 9.1 ug/L | all year | 001 |
| Lead, potentially dissolvd | daily maximum | ≤ 226 ug/L | all year | 001 |
| Lead, potentially dissolvd | rolling average | ≤ 2.3 ug/L | all year | 001 |
| Nickel, potentially dissolvd | 30-day average | ≤ 147 ug/L | all year | 001 |
| Nickel, potentially dissolvd | daily maximum | ≤ 1276 ug/L | all year | 001 |
| Nickel, potentially dissolvd | rolling average | ≤ 39 ug/L | all year | 001 |
| Selenium, potentially dissolvd | 30-day average | ≤ 8.2 ug/L | all year | 001 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 001 |
| Selenium, potentially dissolvd | daily maximum | ≤ 19 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 | ≤ 52 ug/L | all year | 001 |
| Chromium, trivalent total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, trivalent total recoverable | rolling average | ≤ 8.8 ug/L | 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 | report only (MGD) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .5 mg/L | all year | 001 |
| E. coli | 30-day geometric mean | ≤ 126 #/100mL | all year | 001 |
| E. coli | maximum 7-day geometric mean | ≤ 252 #/100mL | all year | 001 |
| E. coli | rolling average | ≤ 65.4 #/100mL | all year | 001 |
| Nonylphenol | 30-day average | report only (ug/L) | all year | 001 |
| Nonylphenol | daily maximum | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | 30-day average | ≤ .011 ug/L | all year | 001 |
| Mercury, total [as Hg] | rolling average | ≤ .0021 ug/L | all year | 001 |
| Mercury, total [as Hg] | rolling average | 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 |
| 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 |
| 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 |
| 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 |
Cited limits by parameter: Colorado's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/CO0000005 · MCP: https://passage-data.com/mcp