NPDES ILG580247 · Clean Water Act
POTOMAC STP, Potomac, IL: NPDES ILG580247 discharge permit, effluent exceedances, inspections, penalties
POTOMAC STP, Potomac, Illinois: General permit coverage ILG580247, held by POTOMAC, VILLAGE OF; Publicly owned treatment works; Administratively continued; issued November 19, 2014, term to June 30, 2018; discharges to BLUEGRASS CREEK.
- Solids, total suspended: 5 limits, 175 violations of any kind, 53 effluent exceedances, latest May 31, 2026, largest 219% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 4 limits, 113 violations of any kind, 17 effluent exceedances, latest February 28, 2022, largest 984% over the limit.
- Oxygen, dissolved [DO]: 1 limit, 26 violations of any kind, 4 effluent exceedances, latest May 31, 2026, largest 50% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 102 violations of any kind.
- pH: 2 limits, 51 violations of any kind.
- BOD, 5-day, 20 deg. C: 1 limit, 26 violations of any kind.
- Chlorine, total residual: 1 limit, 25 violations of any kind.
- Nitrogen, ammonia total [as N]: 1 limit, 21 violations of any kind.
- Coliform, fecal general: 1 limit, 11 violations of any kind.
Illinois holds 247 Publicly owned treatment works coverages of this permit type in EPA’s file; 203 were issued before ILG580247.
Coverages issued nearest ILG580247
- 2014-11-19: ALTAMONT NORTH STP, CITY OF, Altamont: ILG580152, held by ALTAMONT, CITY OF
- 2014-11-19: LORAINE STP, Loraine: ILG580184, held by LORAINE, VILLAGE OF
- 2014-11-19: NEW GRAND CHAIN STP, VILLAGE OF, New Grand Chain: ILG580196, held by NEW GRAND CHAIN, VILLAGE OF
- 2014-11-19: REYNOLDS STP, VILLAGE OF, Reynolds: ILG580225, held by REYNOLDS, VILLAGE OF
- 2014-11-19: VERSAILLES STP, VILLAGE OF, Versailles: ILG580227, held by VERSAILLES, VILLAGE OF
- 2014-11-19: QUNICY MUNICIPAL AIRPORT, Quincy: ILG580263, held by QUINCY MUNICIPAL AIRPORT
- 2014-11-19: DELAVAN STP, CITY OF, Delavan: ILG582018, held by DELAVAN, CITY OF
- 2014-11-19: HANNA CITY STP, VILLAGE OF, Hanna City: ILG582022, held by HANNA CITY, VILLAGE OF
- 2014-11-19: LANARK STP, CITY OF, Lanark: ILG582023, held by LANARK, CITY OF
- 2014-11-21: MOUNT STERLING SE STP, CITY OF, Mount Sterling: ILG580089, held by MOUNT STERLING, CITY OF
POTOMAC STP among its neighbors
2 discharge permits are in the Bluegrass Creek subwatershed (HUC 051201090504); ILG580247 is one. Its county: 85, 2 major; ILG580247 is minor permit.
Other permits in the Bluegrass Creek subwatershed (HUC 051201090504)
- RANKIN STP, VILLAGE OF, Rankin: IL0021709, minor, term to 2024-10-31
Identity
| Facility | POTOMAC STP |
|---|---|
| Permittee | POTOMAC, VILLAGE OF |
| NPDES ID | ILG580247 |
| Status | Administratively continued |
| Type | General permit coverage |
| Class | Minor |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 19, 2014 |
| Expires | June 30, 2018 |
| Address | Potomac, IL 61865 |
| Receiving water | BLUEGRASS CREEK |
| Subwatershed | Bluegrass Creek (HUC 051201090504) |
NPDES ILG580247: effluent limits and exceedances
POTOMAC STP (NPDES ILG580247): 9 pollutants on file, 9 limited; 9 with a violation of any kind, 3 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 5 | 175 | 53 | May 31, 2026 | 219% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 113 | 17 | February 28, 2022 | 984% over the limit |
| Oxygen, dissolved [DO] | 1 | 26 | 4 | May 31, 2026 | 50% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 102 | 0 | ||
| pH | 2 | 51 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 26 | 0 | ||
| Chlorine, total residual | 1 | 25 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 21 | 0 | ||
| Coliform, fecal general | 1 | 11 | 0 |
NPDES ILG580247: inspections, violations and enforcement
NPDES ILG580247 (POTOMAC STP): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES ILG580247
NPDES ILG580247: one email when its EPA record changes — $99/month.
Permits near NPDES ILG580247
NPDES ILG580247: 9 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.