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Sewage treatment plant, major discharger, Yakima, Washington. NPDES permit WA0024023, in force until Mar 31, 2029. Last 12 months: over a limit once (last September 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| September 2026 | Coliform, total general, monthly geometric mean | 101.977 | ≤ 100 #/100mL | 2% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | average | report only (deg C) (alert, not enforceable) | all year | 005 |
| Temperature, water deg. centigrade | maximum | report only (deg C) (alert, not enforceable) | all year | 005 |
| Oxygen, dissolved [DO] | average | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Oxygen, dissolved [DO] | minimum | report only (mg/L) (alert, not enforceable) | all year | 005 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 005 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | 005 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 5379 lb/d | all year | 005 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 8069 lb/d | all year | 005 |
| pH | daily minimum | ≥ 6 SU | all year | 005 |
| pH | daily maximum | ≤ 9 SU | all year | 005 |
| Alkalinity, total [as CaCO3] | single reading | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 005 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 005 |
| Solids, total suspended | monthly average | ≤ 5379 lb/d | all year | 005 |
| Solids, total suspended | weekly average | ≤ 8069 lb/d | all year | 005 |
| Oil and grease [soxhlet extr.] tot. | single reading | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Nitrogen, ammonia total [as N] | average | report only (lb/d) (alert, not enforceable) | all year | 005 |
| Nitrogen, ammonia total [as N] | maximum | report only (lb/d) (alert, not enforceable) | all year | 005 |
| Nitrogen, Kjeldahl, total [as N] | single reading | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Nitrogen, Kjeldahl, total [as N] | average | report only (lb/d) (alert, not enforceable) | all year | 005 |
| Nitrogen, Kjeldahl, total [as N] | maximum | report only (lb/d) (alert, not enforceable) | all year | 005 |
| Nitrite + Nitrate total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Nitrite + Nitrate total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Phosphorus, total [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Phosphorus, total [as P] | average | report only (lb/d) (alert, not enforceable) | all year | 005 |
| Phosphorus, total [as P] | maximum | report only (lb/d) (alert, not enforceable) | all year | 005 |
| Cyanide, total [as CN] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Hardness, total [as CaCO3] | single reading | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Arsenic, total [as As] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Beryllium, total [as Be] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Cadmium, total [as Cd] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Chromium, total [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Lead, total [as Pb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Thallium, total [as Tl] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Nickel, total [as Ni] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Silver, total [as Ag] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Zinc, total [as Zn] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Antimony, total [as Sb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Selenium, total [as Se] | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Total phenols | single reading | report only (ug/L) | all year | 005 |
| Phosphate, ortho [as P] | average | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Phosphate, ortho [as P] | maximum | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Phosphate, ortho [as P] | average | report only (lb/d) (alert, not enforceable) | all year | 005 |
| Phosphate, ortho [as P] | maximum | report only (lb/d) (alert, not enforceable) | all year | 005 |
| Phenolics, total | single reading | report only (ug/L) (alert, not enforceable) | all year | 005 |
| Chlorine, total residual | daily maximum | ≤ .035 mg/L | all year | 005 |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year | 005 |
| Mercury, total [as Hg] | single reading | report only (ng/L) (alert, not enforceable) | all year | 005 |
| Coliform, total general | monthly geometric mean | ≤ 100 #/100mL | all year | 005 |
| Coliform, total general | weekly geometric mean | ≤ 320 #/100mL | all year | 005 |
| Flow | average | report only (MGD) (alert, not enforceable) | all year | 005 |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | 005 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 005 |
| 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 | 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 |
| 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 | 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 |
| Nitrogen, Kjeldahl, total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Nitrogen, Kjeldahl, total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | IN1 |
| Nitrogen, Kjeldahl, total [as N] | average | report only (lb/d) (alert, not enforceable) | all year | IN1 |
| Nitrogen, Kjeldahl, total [as N] | maximum | report only (lb/d) (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 |
| BOD, 5-day, 20 deg. C | average | report only (mg/L) (alert, not enforceable) | all year | IN2 |
| BOD, 5-day, 20 deg. C | maximum | report only (mg/L) (alert, not enforceable) | all year | IN2 |
| BOD, 5-day, 20 deg. C | average | report only (lb/d) (alert, not enforceable) | all year | IN2 |
| BOD, 5-day, 20 deg. C | maximum | report only (lb/d) (alert, not enforceable) | all year | IN2 |
| Solids, total suspended | average | report only (mg/L) (alert, not enforceable) | all year | IN2 |
| Solids, total suspended | maximum | report only (mg/L) (alert, not enforceable) | all year | IN2 |
| Solids, total suspended | average | report only (lb/d) (alert, not enforceable) | all year | IN2 |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | IN2 |
| Nitrogen, Kjeldahl, total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | IN2 |
| Nitrogen, Kjeldahl, total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | IN2 |
| Nitrogen, Kjeldahl, total [as N] | average | report only (lb/d) (alert, not enforceable) | all year | IN2 |
| Nitrogen, Kjeldahl, total [as N] | maximum | report only (lb/d) (alert, not enforceable) | all year | IN2 |
| Flow | average | report only (MGD) (alert, not enforceable) | all year | IN2 |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | IN2 |
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/WA0024023 · MCP: https://passage-data.com/mcp