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Sewerage Systems, Georgetown, Colorado. NPDES permit CO0040835 expired Sep 30, 2016; its limits still apply. Last 12 months: no values over a limit. 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, total [as N] | 30-day average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 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) | Aug | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Sep | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Jul | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 63 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 62 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 69 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Oct | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Nov | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | May | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | Apr | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 54 mg/L | Dec | 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) | 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) | Jul | 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) | 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) | 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) | May | 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) | Dec | 001 |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/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 | ≤ .03 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 | ≤ .11 mg/L | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .3 mg/L | all year | 001 |
| E. coli | 30-day average | ≤ 1920 #/100mL | all year | 001 |
| E. coli | daily maximum | ≤ 3840 #/100mL | 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 (N=0;Y=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 |
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/CO0040835 · MCP: https://passage-data.com/mcp