Passage Data · Check a report · Use it from your AI
Sewage treatment plant, Douglas County, Colorado. NPDES permit CO0043044 expired Jan 31, 2024; its limits still apply. Last 12 months: over a limit 8 times (last July 2026), 14 of 28 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Nitrogen, inorganic total, daily maximum | 29.2 mg/L | ≤ 23 mg/L | 27% |
| December 2025 | Nitrogen, inorganic total, daily maximum | 28.1 mg/L | ≤ 23 mg/L | 22% |
| February 2026 | Nitrogen, inorganic total, daily maximum | 28.6 mg/L | ≤ 23 mg/L | 24% |
| March 2026 | Nitrogen, ammonia total [as N], 30-day average | 16.8 mg/L | ≤ 16 mg/L | 5% |
| March 2026 | Nitrogen, inorganic total, daily maximum | 29.5 mg/L | ≤ 23 mg/L | 28% |
| April 2026 | Nitrogen, inorganic total, daily maximum | 35.1 mg/L | ≤ 23 mg/L | 53% |
| June 2026 | Nitrogen, inorganic total, daily maximum | 30.6 mg/L | ≤ 23 mg/L | 33% |
| July 2026 | Nitrogen, inorganic total, daily maximum | 32 mg/L | ≤ 23 mg/L | 39% |
| 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 | ≤ 14 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 16 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 15 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 12 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 41 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 59 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 39 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 43 mg/L | Sep | 001 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, inorganic total | daily maximum | ≤ 23 mg/L | all year | 001 |
| Phosphorus, total [as P] | annual total | ≤ 73 lb/yr | all year | 001 |
| Phosphorus, total [as P] | 30-day average | ≤ 1 mg/L | all year | 001 |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year | 001 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | all year | 001 |
| Oil and grease | instantaneous maximum | ≤ 10 mg/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 | ≤ .044 mg/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .044 mg/L | all year | 001 |
| E. coli | 30-day geometric mean | ≤ 419 #/100mL | all year | 001 |
| E. coli | maximum 7-day geometric mean | ≤ 838 #/100mL | all year | 001 |
| BOD, 5-day, percent removal | minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | minimum | ≥ 85 % | all year | 001 |
| Oil and grease visual | instantaneous maximum | report only (abst=0;prst=1) | 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 |
| Temperature, water deg. centigrade | maximum 7-day 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.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CO0043044 · MCP: https://passage-data.com/mcp