Passage Data · Check a report · Use it from your AI
Sewage treatment plant, Naches, Washington. NPDES permit WA0022586 expired Sep 30, 2019; its limits still apply. Last 12 months: over a limit 7 times (last April 2026), 334 required values missing, 1 of 28 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Oxygen, dissolved [DO], monthly average | 6.15783 | ≤ 5.59 mg/L | 10% |
| November 2025 | Oxygen, dissolved [DO], monthly average | 6.84529 | ≤ 5.59 mg/L | 22% |
| December 2025 | Oxygen, dissolved [DO], monthly average | 8.12818 | ≤ 5.59 mg/L | 45% |
| January 2026 | Oxygen, dissolved [DO], monthly average | 7.857 | ≤ 5.59 mg/L | 41% |
| February 2026 | Oxygen, dissolved [DO], monthly average | 8.19895 | ≤ 5.59 mg/L | 47% |
| March 2026 | Oxygen, dissolved [DO], monthly average | 7.72545 | ≤ 5.59 mg/L | 38% |
| April 2026 | Oxygen, dissolved [DO], monthly average | 7.21486 | ≤ 5.59 mg/L | 29% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | maximum | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | monthly average | ≤ 22.84 deg C | all year | 001 |
| Temperature, water deg. centigrade | monthly average | ≤ 22.84 deg C | all year | 001 |
| Temperature, water deg. centigrade | minimum | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | monthly average | ≤ 22.84 deg C | all year | 001 |
| Oxygen, dissolved [DO] | maximum | report only (mg/L) | all year | 001 |
| Oxygen, dissolved [DO] | monthly average | ≤ 5.59 mg/L | all year | 001 |
| Oxygen, dissolved [DO] | monthly average | ≤ 5.59 mg/L | all year | 001 |
| Oxygen, dissolved [DO] | minimum | report only (mg/L) | all year | 001 |
| Oxygen, dissolved [DO] | monthly average | ≤ 5.59 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | maximum | report only (mg/L) | all year | 001 |
| BOD, 5-day, 20 deg. C | minimum | report only (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 | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 45 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 45 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 67.5 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 67.5 lb/d | 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 | ≤ 45 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly total | report only (lb/d) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly total | report only (lb/d) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly total | report only (lb/d) | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 67.5 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 67.5 lb/d | all year | 001 |
| pH | maximum | report only (SU) (alert, not enforceable) | all year | 001 |
| pH | maximum | report only (SU) (alert, not enforceable) | all year | 001 |
| pH | minimum | report only (SU) (alert, not enforceable) | all year | 001 |
| pH | minimum | report only (SU) (alert, not enforceable) | all year | 001 |
| Alkalinity, total [as CaCO3] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Alkalinity, total [as CaCO3] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | minimum | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 45 lb/d | all year | 001 |
| Solids, total suspended | monthly average | ≤ 45 lb/d | all year | 001 |
| Solids, total suspended | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | weekly average | ≤ 67.5 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 67.5 lb/d | 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 | ≤ 45 lb/d | all year | 001 |
| Solids, total suspended | monthly total | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | monthly total | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | monthly total | report only (lb/d) | all year | 001 |
| Solids, total suspended | weekly average | ≤ 67.5 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 67.5 lb/d | all year | 001 |
| Oil and grease, hexane extr method | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Oil and grease, hexane extr method | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | minimum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.14 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | maximum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | minimum | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly total | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly total | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly total | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly total | report only (lb/d) (alert, not enforceable) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrite + Nitrate total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrite + Nitrate total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Hardness, total [as CaCO3] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Hardness, total [as CaCO3] | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, total dissolved | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Solids, total dissolved | single reading | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Coliform, fecal general | monthly geometric mean | ≤ 100 #/100mL | all year | 001 |
| Coliform, fecal general | monthly geometric mean | ≤ 100 #/100mL | all year | 001 |
| Coliform, fecal general | weekly geometric mean | ≤ 200 #/100mL | all year | 001 |
| Coliform, fecal general | weekly geometric mean | ≤ 200 #/100mL | all year | 001 |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | 001 |
| Flow | minimum | report only (MGD) (alert, not enforceable) | all year | 001 |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | 001 |
| Flow | monthly total | report only (MGD) (alert, not enforceable) | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| 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 | minimum | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | minimum | 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 | 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 | minimum | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| BOD, 5-day, 20 deg. C | minimum | report only (lb/d) (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 | minimum | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | minimum | 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 | 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 |
| Solids, total suspended | minimum | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | minimum | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Solids, total suspended | minimum | 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 | minimum | report only (MGD) (alert, not enforceable) | all year | IN1 |
| Flow | minimum | report only (MGD) (alert, not enforceable) | all year | IN1 |
| Flow | monthly total | report only (MGD) (alert, not enforceable) | all year | IN1 |
| Flow | monthly total | report only (MGD) (alert, not enforceable) | all year | IN1 |
Cited limits by parameter: Washington'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/WA0022586 · MCP: https://passage-data.com/mcp