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Sewage treatment plant, Colville, Washington. NPDES permit WA0022616 expired Jul 31, 2020; its limits still apply. Last 12 months: no values over a limit, 1 required value missing, 1 of 109 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | weekly average | ≤ 15 mg/L | Jun–Oct | 0001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 15 mg/L | Jun–Oct | 0001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 0001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 0001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 354 lb/d | Jun–Oct | 0001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 354 lb/d | Jun–Oct | 0001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 457 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec | 0001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 457 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec | 0001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 0001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 0001 |
| Solids, total suspended | weekly average | ≤ 15 mg/L | Jun–Oct | 0001 |
| Solids, total suspended | weekly average | ≤ 15 mg/L | Jun–Oct | 0001 |
| Solids, total suspended | weekly average | ≤ 354 lb/d | Jun–Oct | 0001 |
| Solids, total suspended | weekly average | ≤ 354 lb/d | Jun–Oct | 0001 |
| Solids, total suspended | weekly average | ≤ 806 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec | 0001 |
| Solids, total suspended | weekly average | ≤ 806 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec | 0001 |
| Temperature, water deg. centigrade | maximum | report only (deg C) (alert, not enforceable) | all year | 001 |
| Temperature, water deg. centigrade | maximum | report only (deg C) (alert, not enforceable) | all year | 001 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) (alert, not enforceable) | all year | 001 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) (alert, not enforceable) | all year | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 3 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 3 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 8 mg/L | Jun–Oct | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 8 mg/L | Jun–Oct | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | Jun–Oct | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | Jun–Oct | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 305 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 305 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 236 lb/d | Jun–Oct | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 236 lb/d | Jun–Oct | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily maximum | ≤ 8.5 SU | all year | 001 |
| pH | daily maximum | ≤ 8.5 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 10 mg/L | Jun–Oct | 001 |
| Solids, total suspended | monthly average | ≤ 10 mg/L | Jun–Oct | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 236 lb/d | Jun–Oct | 001 |
| Solids, total suspended | monthly average | ≤ 236 lb/d | Jun–Oct | 001 |
| Solids, total suspended | monthly average | ≤ 537 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 537 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | Jun–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | Jun–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year | 001 |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year | 001 |
| Coliform, fecal general | monthly geometric mean | ≤ 100 #/100mL | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| Coliform, fecal general | monthly geometric mean | ≤ 100 #/100mL | Jan, Feb, Mar, Apr, May, Nov, Dec | 001 |
| Coliform, fecal general | daily maximum | ≤ 43 #/100mL | Jun–Oct | 001 |
| Coliform, fecal general | daily maximum | ≤ 43 #/100mL | Jun–Oct | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001B |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001B |
| Zinc, total [as Zn] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001B |
| Zinc, total [as Zn] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001B |
| Aluminum, total [as Al] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001B |
| Aluminum, total [as Al] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001B |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | 001F |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | 001F |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | 001F |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | 001F |
| Nitrogen, Kjeldahl, total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001Q |
| Nitrogen, Kjeldahl, total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001Q |
| Nitrite + Nitrate total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001Q |
| Nitrite + Nitrate total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001Q |
| Phosphorus, total [as P] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001Q |
| Phosphorus, total [as P] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001Q |
| Phosphorus, dissolved reactive [drp as P] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001Q |
| Phosphorus, dissolved reactive [drp as P] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001Q |
| Hardness, total [as CaCO3] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001Q |
| Hardness, total [as CaCO3] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001Q |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec | 002 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec | 002 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec | 003 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec | 003 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jun–Oct | 004 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jun–Oct | 004 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jun–Oct | 005 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jun–Oct | 005 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jun–Oct | 006 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jun–Oct | 006 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jun–Oct | 007 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jun–Oct | 007 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jun–Oct | 008 |
| Flow | single reading | report only (MGD) (alert, not enforceable) | Jun–Oct | 008 |
| Flow | maximum | report only (cfs) (alert, not enforceable) | all year | 009 |
| Flow | maximum | report only (cfs) (alert, not enforceable) | all year | 009 |
| Flow | monthly average | report only (cfs) (alert, not enforceable) | all year | 009 |
| Flow | monthly average | report only (cfs) (alert, not enforceable) | all year | 009 |
| 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 | monthly average | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) (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 | monthly average | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| pH | maximum | report only (SU) (alert, not enforceable) | all year | IN1 |
| pH | maximum | report only (SU) (alert, not enforceable) | all year | IN1 |
| pH | minimum | report only (SU) (alert, not enforceable) | all year | IN1 |
| pH | minimum | report only (SU) (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 | monthly average | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | monthly average | report only (mg/L) (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 | monthly average | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | monthly average | report only (lb/d) (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 |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | IN1 |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | IN1 |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | IN1Q |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | IN1Q |
| Zinc, total [as Zn] | single reading | report only (ug/L) (alert, not enforceable) | all year | IN1Q |
| Zinc, total [as Zn] | single reading | report only (ug/L) (alert, not enforceable) | all year | IN1Q |
| Aluminum, total [as Al] | single reading | report only (ug/L) (alert, not enforceable) | all year | IN1Q |
| Aluminum, total [as Al] | single reading | report only (ug/L) (alert, not enforceable) | all year | IN1Q |
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/WA0022616 · MCP: https://passage-data.com/mcp