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Sewage treatment plant, Colfax, Washington. NPDES permit WA0020613 expired Oct 31, 2015; its limits still apply. Last 12 months: over a limit once (last March 2026), 22 required values missing, 11 of 73 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| March 2026 | Flow, average | .776 | ≤ .6 MGD | 29% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 113 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 113 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 113 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 169 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 169 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 169 lb/d | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 113 lb/d | all year | 001 |
| Solids, total suspended | monthly average | ≤ 113 lb/d | all year | 001 |
| Solids, total suspended | monthly average | ≤ 113 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 169 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 169 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 169 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | average | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | average | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | average | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Chlorine, total residual | average | ≤ 20 ug/L | all year | 001 |
| Chlorine, total residual | average | ≤ 20 ug/L | all year | 001 |
| Chlorine, total residual | average | ≤ 20 ug/L | all year | 001 |
| Chlorine, total residual | maximum | report only (ug/L) | all year | 001 |
| Coliform, fecal general | monthly average | ≤ 200 #/100mL | all year | 001 |
| Coliform, fecal general | monthly average | ≤ 200 #/100mL | all year | 001 |
| Coliform, fecal general | weekly average | ≤ 400 #/100mL | all year | 001 |
| Coliform, fecal general | weekly average | ≤ 400 #/100mL | all year | 001 |
| Flow | average | ≤ .6 MGD | all year | 001 |
| Flow | average | ≤ .6 MGD | all year | 001 |
| Flow | average | ≤ .6 MGD | all year | 001 |
| Flow | maximum | report only (MGD) | all year | 001 |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year | 001C |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year | 001C |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001C |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001C |
| Dieldrin | maximum | ≤ .0003 g/d | Mar, Jul | 003 |
| Polychlorinated biphenyls [PCBs] | maximum | ≤ .0004 g/d | Mar, Jul | 003 |
| BOD, 5-day, 20 deg. C | average | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| BOD, 5-day, 20 deg. C | average | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| BOD, 5-day, 20 deg. C | maximum | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| BOD, 5-day, 20 deg. C | maximum | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| pH | maximum | report only (SU) (alert, not enforceable) | all year | CHNL |
| pH | maximum | report only (SU) (alert, not enforceable) | all year | CHNL |
| pH | minimum | report only (SU) (alert, not enforceable) | all year | CHNL |
| pH | minimum | report only (SU) (alert, not enforceable) | all year | CHNL |
| Solids, total suspended | average | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Solids, total suspended | average | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Solids, total suspended | maximum | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Solids, total suspended | maximum | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Chlorine, total residual | average | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Chlorine, total residual | average | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Chlorine, total residual | maximum | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Chlorine, total residual | maximum | report only (mg/L) (alert, not enforceable) | all year | CHNL |
| Coliform, fecal general | average | report only (#/100mL) (alert, not enforceable) | all year | CHNL |
| Coliform, fecal general | average | report only (#/100mL) (alert, not enforceable) | all year | CHNL |
| Coliform, fecal general | maximum | report only (#/100mL) (alert, not enforceable) | all year | CHNL |
| Coliform, fecal general | maximum | report only (#/100mL) (alert, not enforceable) | all year | CHNL |
| Flow | average | report only (gal/d) (alert, not enforceable) | all year | CHNL |
| Flow | average | report only (gal/d) (alert, not enforceable) | all year | CHNL |
| Flow | maximum | report only (gal/d) (alert, not enforceable) | all year | CHNL |
| Flow | maximum | report only (gal/d) (alert, not enforceable) | all year | CHNL |
| pH | maximum | report only (SU) (alert, not enforceable) | all year | DWN |
| pH | maximum | report only (SU) (alert, not enforceable) | all year | DWN |
| pH | minimum | report only (SU) (alert, not enforceable) | all year | DWN |
| pH | minimum | report only (SU) (alert, not enforceable) | all year | DWN |
| Alkalinity, total [as CaCO3] | average | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Alkalinity, total [as CaCO3] | average | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Alkalinity, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Alkalinity, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Hardness, total [as CaCO3] | average | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Hardness, total [as CaCO3] | average | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | DWN |
| Coliform, fecal general | average | report only (#/100mL) (alert, not enforceable) | all year | DWN |
| Coliform, fecal general | average | report only (#/100mL) (alert, not enforceable) | all year | DWN |
| Coliform, fecal general | maximum | report only (#/100mL) (alert, not enforceable) | all year | DWN |
| Coliform, fecal general | maximum | report only (#/100mL) (alert, not enforceable) | all year | DWN |
| BOD, 5-day, 20 deg. C | average | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | average | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | maximum | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | maximum | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | average | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | average | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | average | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | maximum | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | maximum | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | maximum | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | average | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | average | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | maximum | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | maximum | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | average | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | average | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | average | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Flow | average | report only (MGD) (alert, not enforceable) | all year | IN1 |
| Flow | average | report only (MGD) (alert, not enforceable) | all year | IN1 |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | IN1 |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | IN1 |
| pH | maximum | report only (SU) (alert, not enforceable) | all year | UPS |
| pH | maximum | report only (SU) (alert, not enforceable) | all year | UPS |
| pH | minimum | report only (SU) (alert, not enforceable) | all year | UPS |
| pH | minimum | report only (SU) (alert, not enforceable) | all year | UPS |
| Alkalinity, total [as CaCO3] | average | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Alkalinity, total [as CaCO3] | average | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Alkalinity, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Alkalinity, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Hardness, total [as CaCO3] | average | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Hardness, total [as CaCO3] | average | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | UPS |
| Coliform, fecal general | average | report only (#/100mL) (alert, not enforceable) | all year | UPS |
| Coliform, fecal general | average | report only (#/100mL) (alert, not enforceable) | all year | UPS |
| Coliform, fecal general | maximum | report only (#/100mL) (alert, not enforceable) | all year | UPS |
| Coliform, fecal general | maximum | report only (#/100mL) (alert, not enforceable) | all year | UPS |
Cited limits by parameter: Washington'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/WA0020613 · MCP: https://passage-data.com/mcp