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Sewage treatment plant, major discharger, Ona, West Virginia. NPDES permit WV0084450, in force until Jun 20, 2028. Last 12 months: over a limit once (last December 2025). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Coliform, fecal general, daily maximum | 1730 #/100mL | ≤ 400 #/100mL | 333% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 7.25 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 40 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 20 mg/L | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 417 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 209 lb/d | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 834 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 417 lb/d | May–Oct | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 626 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 1251 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .9 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.8 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.8 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.6 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 19 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 38 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 38 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 75 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Cyanide, weak acid, dissociable | monthly average | report only (mg/L) | all year | 001 |
| Cyanide, weak acid, dissociable | daily maximum | report only (mg/L) | all year | 001 |
| Arsenic, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Arsenic, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Chromium, hexavalent [as Cr] | monthly average | report only (mg/L) | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (mg/L) | all year | 001 |
| Nickel, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Silver total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Silver total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Cadmium, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Lead, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | minimum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | monthly average | ≤ .82 tox chronic | all year | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | ≤ 1.64 tox chronic | all year | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | monthly average | report only (tox chronic) | all year | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | daily maximum | report only (tox chronic) | all year | 001 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (ug/L) | all year | 001 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 001 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | 001 |
| BOD, 5-day, 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 | monthly average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 002 |
| pH | instantaneous minimum | report only (SU) | all year | 002 |
| pH | instantaneous minimum | report only (SU) | all year | 002 |
| pH | instantaneous maximum | report only (SU) | all year | 002 |
| pH | instantaneous maximum | report only (SU) | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 002 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Coliform, fecal general | monthly geometric mean | report only (#/100mL) | all year | 002 |
| Coliform, fecal general | monthly geometric mean | report only (#/100mL) | all year | 002 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | all year | 002 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | all year | 002 |
| Flow rate | monthly average | report only (gal/d) | all year | IU01 |
| Flow rate | monthly average | report only (gal/d) | all year | IU01 |
| Flow rate | daily maximum | ≤ 1000 gal/d | all year | IU01 |
| Flow rate | daily maximum | ≤ 1000 gal/d | all year | IU01 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | IU01 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | IU01 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 500 mg/L | all year | IU01 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 500 mg/L | all year | IU01 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year | IU01 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year | IU01 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year | IU01 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year | IU01 |
| pH | instantaneous minimum | ≥ 5 SU | all year | IU01 |
| pH | instantaneous minimum | ≥ 5 SU | all year | IU01 |
| pH | instantaneous maximum | ≤ 10 SU | all year | IU01 |
| pH | instantaneous maximum | ≤ 10 SU | all year | IU01 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | IU01 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | IU01 |
| Solids, total suspended | daily maximum | ≤ 500 mg/L | all year | IU01 |
| Solids, total suspended | daily maximum | ≤ 500 mg/L | all year | IU01 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | IU01 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | IU01 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | IU01 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | IU01 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | IU01 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | IU01 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 100 mg/L | all year | IU01 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 100 mg/L | all year | IU01 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | all year | IU01 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | all year | IU01 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | IU01 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | IU01 |
| Flow rate | monthly average | report only (gal/d) | all year | IU02 |
| Flow rate | monthly average | report only (gal/d) | all year | IU02 |
| Flow rate | daily maximum | ≤ 100 gal/d | all year | IU02 |
| Flow rate | daily maximum | ≤ 100 gal/d | all year | IU02 |
| pH | instantaneous minimum | ≥ 5 SU | all year | IU02 |
| pH | instantaneous minimum | ≥ 5 SU | all year | IU02 |
| pH | instantaneous maximum | ≤ 10 SU | all year | IU02 |
| pH | instantaneous maximum | ≤ 10 SU | all year | IU02 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | IU02 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | IU02 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | IU02 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | IU02 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | IU02 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | IU02 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | IU02 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | IU02 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | IU02 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | IU02 |
| Oil and grease, hexane extr method | daily maximum | ≤ 30 mg/L | all year | IU02 |
| Oil and grease, hexane extr method | daily maximum | ≤ 30 mg/L | all year | IU02 |
| Oil and grease, hexane extr method | monthly average | report only (lb/d) | all year | IU02 |
| Oil and grease, hexane extr method | monthly average | report only (lb/d) | all year | IU02 |
| Oil and grease, hexane extr method | daily maximum | report only (lb/d) | all year | IU02 |
| Oil and grease, hexane extr method | daily maximum | report only (lb/d) | all year | IU02 |
Cited limits by parameter: West Virginia's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
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