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Sewage treatment plant, Cashmere, Washington. NPDES permit WA0023183 expired May 31, 2025; its limits still apply. Last 12 months: no values over a limit, 110 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | maximum | ≤ 33 deg C | all year | 002 |
| Temperature, water deg. centigrade | maximum | ≤ 33 deg C | all year | 002 |
| Temperature, water deg. centigrade | minimum | report only (deg C) (alert, not enforceable) | all year | 002 |
| Temperature, water deg. centigrade | minimum | report only (deg C) (alert, not enforceable) | all year | 002 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) (alert, not enforceable) | all year | 002 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) (alert, not enforceable) | all year | 002 |
| Oxygen, dissolved [DO] | minimum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Oxygen, dissolved [DO] | minimum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Oxygen, dissolved [DO] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Oxygen, dissolved [DO] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | maximum | report only (lb/d) (alert, not enforceable) | all year | 002 |
| BOD, 5-day, 20 deg. C | maximum | report only (lb/d) (alert, not enforceable) | all year | 002 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 307.7 lb/d | all year | 002 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 307.7 lb/d | all year | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 461.6 lb/d | all year | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 461.6 lb/d | all year | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 461.6 lb/d | all year | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 461.6 lb/d | all year | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 461.6 lb/d | all year | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 461.6 lb/d | all year | 002 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 002 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 002 |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | 002 |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | 002 |
| Solids, total suspended | monthly average | ≤ 307.7 lb/d | all year | 002 |
| Solids, total suspended | monthly average | ≤ 307.7 lb/d | all year | 002 |
| Solids, total suspended | weekly average | ≤ 461.6 lb/d | all year | 002 |
| Solids, total suspended | weekly average | ≤ 461.6 lb/d | all year | 002 |
| Solids, total suspended | weekly average | ≤ 461.6 lb/d | all year | 002 |
| Solids, total suspended | weekly average | ≤ 461.6 lb/d | all year | 002 |
| Solids, total suspended | weekly average | ≤ 461.6 lb/d | all year | 002 |
| Solids, total suspended | weekly average | ≤ 461.6 lb/d | all year | 002 |
| Oil and grease, hexane extr method | single reading | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Oil and grease, hexane extr method | single reading | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrogen, ammonia total [as N] | maximum | report only (lb/d) (alert, not enforceable) | all year | 002 |
| Nitrogen, ammonia total [as N] | maximum | report only (lb/d) (alert, not enforceable) | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) (alert, not enforceable) | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) (alert, not enforceable) | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrite + Nitrate total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrite + Nitrate total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Phosphorus, total [as P] | maximum | report only (kg/d) | Mar, Apr, May, Jul, Aug, Sep, Oct | 002 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) (alert, not enforceable) | Jan, Feb, Jun, Nov, Dec | 002 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) (alert, not enforceable) | Jan, Feb, Jun, Nov, Dec | 002 |
| Phosphorus, total [as P] | monthly average | ≤ .64 kg/d | Mar, Apr, May, Jul, Aug, Sep, Oct | 002 |
| Phosphorus, total [as P] | total | report only (kg/d) (alert, not enforceable) | Jan, Feb, Jun, Nov, Dec | 002 |
| Phosphorus, total [as P] | total | report only (kg/d) (alert, not enforceable) | Jan, Feb, Jun, Nov, Dec | 002 |
| Cyanide, total [as CN] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Cyanide, total [as CN] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Hardness, total [as CaCO3] | single reading | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Hardness, total [as CaCO3] | single reading | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Total phenols | single reading | report only (ug/L) | all year | 002 |
| Phenolics, total | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year | 002 |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year | 002 |
| pH, maximum | maximum | ≤ 8.5 SU | all year | 002 |
| pH, maximum | maximum | ≤ 8.5 SU | all year | 002 |
| pH, minimum | minimum | ≥ 6.5 SU | all year | 002 |
| pH, minimum | minimum | ≥ 6.5 SU | all year | 002 |
| Solids, total dissolved | single reading | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Solids, total dissolved | single reading | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Coliform, fecal general | monthly geometric mean | ≤ 100 #/100mL | all year | 002 |
| Coliform, fecal general | monthly geometric mean | ≤ 100 #/100mL | all year | 002 |
| Coliform, fecal general | weekly geometric mean | ≤ 200 #/100mL | all year | 002 |
| Coliform, fecal general | weekly geometric mean | ≤ 200 #/100mL | all year | 002 |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | 002 |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | 002 |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | 002 |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | 002 |
| Flow | total | report only (MGD) (alert, not enforceable) | all year | 002 |
| Flow | total | report only (MGD) (alert, not enforceable) | all year | 002 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 002 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 002 |
| 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 | 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 |
| 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 |
| Flow | total | report only (MGD) (alert, not enforceable) | all year | IN1 |
| Flow | total | report only (MGD) (alert, not enforceable) | all year | IN1 |
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/WA0023183 · MCP: https://passage-data.com/mcp