NPDES IN0004804 · Clean Water Act
HILLSDALE WATER TREATMENT PLANT, Hillsdale, IN: NPDES IN0004804 discharge permit, effluent exceedances, inspections, penalties
HILLSDALE WATER TREATMENT PLANT, Hillsdale, Indiana: Individual permit IN0004804, held by HILLSDALE WATER CORPORATION; Administratively continued; issued October 27, 2017, term to December 31, 2022, by IDEM; discharges to WABASH RIVER AND UNNAMED TRIB.
- Chlorine, total residual: 2 limits, 16 violations of any kind, 14 effluent exceedances, latest September 30, 2015, largest 2,217% over the limit.
- Iron, total recoverable: 2 limits, 70 violations of any kind, 9 effluent exceedances, latest December 31, 2025, largest 135% over the limit.
- Solids, total suspended: 2 limits, 71 violations of any kind, 5 effluent exceedances, latest December 31, 2025, largest 725% over the limit.
- pH: 2 limits, 65 violations of any kind.
- Flow, in conduit or thru treatment plant: 2 limits, 63 violations of any kind.
- Flow, total: 1 limit, 23 violations of any kind.
- November 4, 2026: Permit Violations - Application Incomplete (ST6).
- November 4, 2026: Management Practice Violations - No Licensed/Certified Operator (ST6).
- November 4, 2026: Management Practice Violations - Improper Operation and Maintenance (ST6).
- November 4, 2026: Reporting Violations - Failure to Submit DMRs (ST6).
- November 4, 2026: Effluent Violations - Numeric effluent violation (ST6).
- November 4, 2026: Reconnaissance without Sampling (S).
- November 4, 2026: Notice of Noncompliance Issued (State).
- January 8, 2026: Evaluation (S).
HILLSDALE WATER TREATMENT PLANT among its neighbors
5 discharge permits are in the Town of Montezuma-Wabash River subwatershed (HUC 051201081605); IN0004804 is one. Its county: 27, 4 major; IN0004804 is minor permit.
Other permits in the Town of Montezuma-Wabash River subwatershed (HUC 051201081605)
- BLOOMINGDALE WATER PWS, Bloomingdale: IN0064106, minor, term to 2023-05-31
- MONTEZUMA DRINKING WATER, Montezuma: INRA15302, minor, term to 2030-01-22
- MONTEZUMA MUNICIPAL UTILITIES PWS, Montezuma: IN0064939, minor, term to 2029-10-31
- VERMILLION COUNTY JAIL, Hillsdale: INRA07684, minor, term to 2026-04-29
Identity
| Facility | HILLSDALE WATER TREATMENT PLANT |
|---|---|
| Permittee | HILLSDALE WATER CORPORATION |
| NPDES ID | IN0004804 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | October 27, 2017 |
| Expires | December 31, 2022 |
| Agency | IDEM |
| Address | Hillsdale, IN 47854 |
| Receiving water | WABASH RIVER AND UNNAMED TRIB |
| Subwatershed | Town of Montezuma-Wabash River (HUC 051201081605) |
| SIC | 4941 – Water Supply |
NPDES IN0004804: effluent limits and exceedances
HILLSDALE WATER TREATMENT PLANT (NPDES IN0004804): 6 pollutants on file, 6 limited; 6 with a violation of any kind, 3 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Chlorine, total residual | 2 | 16 | 14 | September 30, 2015 | 2,217% over the limit |
| Iron, total recoverable | 2 | 70 | 9 | December 31, 2025 | 135% over the limit |
| Solids, total suspended | 2 | 71 | 5 | December 31, 2025 | 725% over the limit |
| pH | 2 | 65 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 63 | 0 | ||
| Flow, total | 1 | 23 | 0 |
NPDES IN0004804: inspections, violations and enforcement
NPDES IN0004804: 5 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 4, 2026 | Permit Violations - Application Incomplete | ST6 |
| November 4, 2026 | Management Practice Violations - No Licensed/Certified Operator | ST6 |
| November 4, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| November 4, 2026 | Reporting Violations - Failure to Submit DMRs | ST6 |
| November 4, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
NPDES IN0004804: 2 inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| November 4, 2026 | Reconnaissance without Sampling | S |
| January 8, 2026 | Evaluation | S |
NPDES IN0004804: 1 informal enforcement action
| Date | What EPA recorded | Agency |
|---|---|---|
| November 4, 2026 | Notice of Noncompliance Issued | State |
NPDES IN0004804 (HILLSDALE WATER TREATMENT PLANT): no formal enforcement action on file.
Watch NPDES IN0004804
NPDES IN0004804: one email when its EPA record changes — $99/month.
Permits near NPDES IN0004804
NPDES IN0004804: 6 pollutant rows, 8 dated events; ICIS-NPDES download, loaded October 14, 2026.