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Sewage treatment plant, Kit Carson, Colorado. NPDES permit CO0048858 expired Nov 30, 2024; its limits still apply. Last 12 months: no values over a limit, 11 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 | ≤ 105 mg/L | all year | 001 |
| Solids, total suspended | maximum 7-day average | ≤ 160 mg/L | all year | 001 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, nitrite total [as N] | daily maximum | ≤ 10 mg/L | all year | 001 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | all year | 001 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Selenium, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Beryllium, total recoverable [as Be] | 30-day average | report only (ug/L) | all year | 001 |
| Nickel, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Zinc, 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 |
| Lead, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Copper, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Molybdenum, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Uranium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 001 |
| Uranium, 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 | 30-day average | report only (ug/L) | all year | 001 |
| Radium 226 & 228, dissolved | 30-day average | report only (pCi/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .03744 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .5 mg/L | all year | 001 |
| E. coli | 30-day geometric mean | ≤ 630 #/100mL | all year | 001 |
| E. coli | maximum 7-day geometric mean | ≤ 1260 #/100mL | all year | 001 |
| Chromium, hexavalent tot recoverable | 30-day average | report only (ug/L) | all year | 001 |
| BOD, 5-day, 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 |
| 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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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CO0048858 · MCP: https://passage-data.com/mcp