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Sewage treatment plant, Ridgeley, West Virginia. NPDES permit WV0105988, in force until May 22, 2027. Last 12 months: no values over a limit, 1 of 27 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 6 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 20 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 100 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 200 lb/d | all year | 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 | ≤ 300 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 600 lb/d | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly total | report only (lb/mo) | all year | 001 |
| Nitrogen, total [as N] | annual total | ≤ 24656 lb/yr | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 20 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 40 lb/d | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year | 001 |
| Phosphorus, total [as P] | annual total | ≤ 3593 lb/yr | all year | 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 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | 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 |
| Iron, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Iron, total recoverable | 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 |
| Aluminum, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Aluminum, 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 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (mg/L) | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (mg/L) | 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 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | monthly average | report only (tox chronic) | all year | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | report only (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 | ≤ .008 ug/L | all year | 001 |
| Mercury, total [as Hg] | daily maximum | ≤ .022 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 |
| Flow rate | monthly average | report only (gal/d) | all year | IU01 |
| Flow rate | daily maximum | ≤ 250000 gal/d | all year | IU01 |
| pH | instantaneous minimum | ≥ 5 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 | daily maximum | ≤ 300 mg/L | 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 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) | all year | IU01 |
| Cyanide, total [as CN] | daily maximum | ≤ .06 mg/L | all year | IU01 |
| Cyanide, total [as CN] | monthly average | report only (lb/d) | all year | IU01 |
| Cyanide, total [as CN] | daily maximum | report only (lb/d) | all year | IU01 |
| Iron, total recoverable | monthly average | report only (mg/L) | all year | IU01 |
| Iron, total recoverable | daily maximum | ≤ 8 mg/L | all year | IU01 |
| Iron, total recoverable | monthly average | report only (lb/d) | all year | IU01 |
| Iron, total recoverable | daily maximum | report only (lb/d) | all year | IU01 |
| Arsenic, total [as As] | monthly average | report only (mg/L) | all year | IU01 |
| Arsenic, total [as As] | daily maximum | ≤ .03 mg/L | all year | IU01 |
| Arsenic, total [as As] | monthly average | report only (lb/d) | all year | IU01 |
| Arsenic, total [as As] | daily maximum | report only (lb/d) | all year | IU01 |
| Cadmium, total [as Cd] | monthly average | report only (mg/L) | all year | IU01 |
| Cadmium, total [as Cd] | daily maximum | ≤ .0005 mg/L | all year | IU01 |
| Cadmium, total [as Cd] | monthly average | report only (lb/d) | all year | IU01 |
| Cadmium, total [as Cd] | daily maximum | report only (lb/d) | all year | IU01 |
| Chromium, hexavalent [as Cr] | monthly average | report only (mg/L) | all year | IU01 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ .015 mg/L | all year | IU01 |
| Chromium, hexavalent [as Cr] | monthly average | report only (lb/d) | all year | IU01 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (lb/d) | all year | IU01 |
| Lead, total [as Pb] | monthly average | report only (mg/L) | all year | IU01 |
| Lead, total [as Pb] | daily maximum | ≤ .006 mg/L | all year | IU01 |
| Lead, total [as Pb] | monthly average | report only (lb/d) | all year | IU01 |
| Lead, total [as Pb] | daily maximum | report only (lb/d) | all year | IU01 |
| Nickel, total [as Ni] | monthly average | report only (mg/L) | all year | IU01 |
| Nickel, total [as Ni] | daily maximum | ≤ .06 mg/L | all year | IU01 |
| Nickel, total [as Ni] | monthly average | report only (lb/d) | all year | IU01 |
| Nickel, total [as Ni] | daily maximum | report only (lb/d) | all year | IU01 |
| Silver, total [as Ag] | monthly average | report only (mg/L) | all year | IU01 |
| Silver, total [as Ag] | daily maximum | ≤ .012 mg/L | all year | IU01 |
| Silver, total [as Ag] | monthly average | report only (lb/d) | all year | IU01 |
| Silver, total [as Ag] | daily maximum | report only (lb/d) | all year | IU01 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | IU01 |
| Zinc, total recoverable | daily maximum | ≤ .3 mg/L | all year | IU01 |
| Zinc, total recoverable | monthly average | report only (lb/d) | all year | IU01 |
| Zinc, total recoverable | daily maximum | report only (lb/d) | all year | IU01 |
| Aluminum, total recoverable | monthly average | report only (mg/L) | all year | IU01 |
| Aluminum, total recoverable | daily maximum | ≤ 40 mg/L | all year | IU01 |
| Aluminum, total recoverable | monthly average | report only (lb/d) | all year | IU01 |
| Aluminum, total recoverable | daily maximum | report only (lb/d) | all year | IU01 |
| Copper, total recoverable | monthly average | report only (mg/L) | all year | IU01 |
| Copper, total recoverable | daily maximum | ≤ .2 mg/L | all year | IU01 |
| Copper, total recoverable | monthly average | report only (lb/d) | all year | IU01 |
| Copper, total recoverable | daily maximum | report only (lb/d) | all year | IU01 |
| Mercury, total recoverable | monthly average | report only (ug/L) | all year | IU01 |
| Mercury, total recoverable | daily maximum | ≤ .04 ug/L | all year | IU01 |
| Mercury, total recoverable | monthly average | report only (lb/d) | all year | IU01 |
| Mercury, total recoverable | daily maximum | report only (lb/d) | all year | IU01 |
Cited limits by parameter: West Virginia'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/WV0105988 · MCP: https://passage-data.com/mcp