Clean Water Act discharge permit · NPDES IN0023795
MONROE CITY WWTP, Monroe City, IN: NPDES IN0023795 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
MONROE CITY WWTP, held by MONROE CITY MUNICIPAL WWTP, holds NPDES permit IN0023795, which discharges to White R (Main) Via Wilson Creek. EPA’s file records it issued June 20, 2019 and expiring August 31, 2024.
MONROE CITY WWTP, Monroe City, Indiana: Individual permit IN0023795, held by MONROE CITY MUNICIPAL WWTP; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued June 20, 2019, term to August 31, 2024, by IDEM; discharges to WHITE R (MAIN) VIA WILSON CREEK.
- Solids, total suspended: 4 limits, 212 violations of any kind, 131 effluent exceedances, latest September 30, 2019, largest 373% over the limit.
- Chlorine, total residual: 4 limits, 12 violations of any kind, 12 effluent exceedances, latest May 31, 2015, largest 2,150% over the limit.
- Nitrogen, ammonia total [as N]: 8 limits, 13 violations of any kind, 8 effluent exceedances, latest April 30, 2025, largest 77% over the limit.
- pH: 2 limits, 10 violations of any kind, 7 effluent exceedances, latest July 31, 2007.
- E. coli, colony forming units [CFU]: 3 limits, 5 violations of any kind, 5 effluent exceedances, latest April 30, 2022, largest 26,794% over the limit.
- Oxygen, dissolved [DO]: 2 limits, 4 violations of any kind, 3 effluent exceedances, latest May 31, 2009, largest 20% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 4 limits, 7 violations of any kind, 2 effluent exceedances, latest October 31, 2009, largest 51% over the limit.
- Flow, in conduit or thru treatment plant: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Flow, wastewater by-passing trtmnt plant: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Number of Events: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Flow, total: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- January 20, 2026: Evaluation (S).
Indiana holds 541 Publicly owned treatment works coverages of this permit type in EPA’s file; 305 were issued before IN0023795.
Coverages issued nearest IN0023795
- May 22, 2019: WHITESTOWN SOUTH WWTP, Whitestown, IN0064211
- May 30, 2019: ALBION WWTP, Albion, IN0022144
- May 30, 2019: HOBART WASTEWATER TREATMENT PLANT, Hobart, IN0061344
- June 20, 2019: MONTICELLO WWTP, Monticello, IN0020176
- June 20, 2019: HARTFORD CITY WWTP, Hartford City, IN0021628
- June 20, 2019: OWENSVILLE MUNICIPAL WWTP, Owensville, IN0038288
- June 20, 2019: LYNN WWTP, Lynn, IN0040967
- June 20, 2019: MCCORDSVILLE WWTP, Mccordsville, IN0060542
- July 3, 2019: GREENFIELD WWTP, Greenfield, IN0020109
- July 3, 2019: SOUTH HAVEN SEWER WORKS WWTP (AQUA INDIANA, INC.), Valparaiso, IN0030651, held by SOUTH HAVEN SEWER WORKS INC WWTP
MONROE CITY WWTP among its neighbors
EPA’s permit file holds 2 discharge permits in the McCoy Creek-Wilson Creek subwatershed (HUC 051202021002), IN0023795 among them. Its county holds 46, 2 of them major permits; IN0023795 is a minor permit.
Other permits in the McCoy Creek-Wilson Creek subwatershed (HUC 051202021002)
- PALESTINE STP, VILLAGE OF, Palestine: ILG580034, minor permit, discharging to LAMOTTE CREEK, permit term to June 30, 2018
Identity
| Facility as filed | MONROE CITY WWTP |
|---|---|
| Permittee as filed | MONROE CITY MUNICIPAL WWTP |
| NPDES ID | IN0023795 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 20, 2019 |
| Expiration date | August 31, 2024 |
| Issuing agency | IDEM |
| Address | Monroe City, IN 47557 |
| Receiving water | WHITE R (MAIN) VIA WILSON CREEK |
| Subwatershed | McCoy Creek-Wilson Creek (HUC 051202021002) |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 11Pollutants on file
- 10Under a numeric limit
- 9With a violation of any kind
- 7With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 4 | 212 | 131 | September 30, 2019 | 373% over the limit |
| Chlorine, total residual | 4 | 12 | 12 | May 31, 2015 | 2,150% over the limit |
| Nitrogen, ammonia total [as N] | 8 | 13 | 8 | April 30, 2025 | 77% over the limit |
| pH | 2 | 10 | 7 | July 31, 2007 | |
| E. coli, colony forming units [CFU] | 3 | 5 | 5 | April 30, 2022 | 26,794% over the limit |
| Oxygen, dissolved [DO] | 2 | 4 | 3 | May 31, 2009 | 20% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 7 | 2 | October 31, 2009 | 51% over the limit |
| Flow, in conduit or thru treatment plant | 1 | 2 | 0 | ||
| Flow, wastewater by-passing trtmnt plant | 0 | 1 | 0 | ||
| Number of Events | 2 | 0 | 0 | ||
| Flow, total | 1 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0023795.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| January 20, 2026 | Evaluation | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES IN0023795.
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- Discharge permits in Monroe City
- Every permit record in Monroe City, A to Z
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.