Clean Water Act discharge permit · NPDES IN0004278
WARSAW BLACK OXIDE, INC., Burket, IN: NPDES IN0004278 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 16Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
WARSAW BLACK OXIDE, INC. holds NPDES permit IN0004278, which discharges to Tippecanoe R Via Williamson Ditch. EPA’s file records it issued August 20, 2020 and expiring October 31, 2025.
WARSAW BLACK OXIDE, INC., Burket, Indiana: Individual permit IN0004278; Administratively continued (past its expiration date and still in force until reissued); issued August 20, 2020, term to October 31, 2025, by IDEM; discharges to TIPPECANOE R VIA WILLIAMSON DITCH.
- Zinc, total recoverable: 4 limits, 74 violations of any kind, 54 effluent exceedances, latest July 31, 2026, largest 8,507% over the limit.
- Chromium, hexavalent dissolved [as Cr]: 4 limits, 46 violations of any kind, 32 effluent exceedances, latest June 30, 2021, largest 2,800% over the limit.
- Chloride [as Cl]: 4 limits, 30 violations of any kind, 16 effluent exceedances, latest December 31, 2025, largest 141% over the limit.
- Copper, total recoverable: 4 limits, 14 violations of any kind, 14 effluent exceedances, latest October 31, 2024, largest 659% over the limit.
- Solids, total suspended: 4 limits, 23 violations of any kind, 3 effluent exceedances, latest October 31, 2011, largest 34% over the limit.
- Oil and grease, hexane extr method: 4 limits, 3 violations of any kind, 3 effluent exceedances, latest October 31, 2023, largest 33% over the limit.
- Oil & Grease: 0 limits, 25 violations of any kind, 1 effluent exceedance, latest March 31, 1998, largest 754% over the limit.
- pH: 2 limits, 11 violations of any kind, 1 effluent exceedance, latest June 30, 2026.
- Total toxic organics [TTO] [40 CFR433]: 1 limit, 24 violations of any kind, 0 effluent exceedances.
- Fluoride, total [as F]: 4 limits, 22 violations of any kind, 0 effluent exceedances.
- Sulfate, total [as SO4]: 1 limit, 14 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- Nitrogen, ammonia total [as N]: 0 limits, 10 violations of any kind, 0 effluent exceedances.
- Chromium, total [as Cr]: 0 limits, 10 violations of any kind, 0 effluent exceedances.
- Nickel, total recoverable: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Chromium, total recoverable: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Hardness, total [as CaCO3]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Flow, total: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- September 25, 2026: Notice of Noncompliance Issued (State).
- January 22, 2026: Effluent Violations - Numeric effluent violation (ST6).
- January 22, 2026: Evaluation (S).
- January 22, 2026: Notice of Noncompliance Issued (State).
WARSAW BLACK OXIDE, INC. among its neighbors
EPA’s permit file holds 1 discharge permits in the Palestine Lake-Trimble Creek subwatershed (HUC 051201060303), IN0004278 among them. Its county holds 86, 5 of them major permits; IN0004278 is a major permit.
Identity
| Facility as filed | WARSAW BLACK OXIDE, INC. |
|---|---|
| Permittee as filed | WARSAW BLACK OXIDE, INC. |
| NPDES ID | IN0004278 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 20, 2020 |
| Expiration date | October 31, 2025 |
| Issuing agency | IDEM |
| Address | Burket, IN 46508 |
| Receiving water | TIPPECANOE R VIA WILLIAMSON DITCH |
| Subwatershed | Palestine Lake-Trimble Creek (HUC 051201060303) |
| SIC | 3471 – Plating And Polishing |
| Other EPA IDs (FRS) | RCRA handler IND005157144 |
Effluent limits and exceedances
- 19Pollutants on file
- 16Under a numeric limit
- 14With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| Zinc, total recoverable | 4 | 74 | 54 | July 31, 2026 | 8,507% over the limit |
| Chromium, hexavalent dissolved [as Cr] | 4 | 46 | 32 | June 30, 2021 | 2,800% over the limit |
| Chloride [as Cl] | 4 | 30 | 16 | December 31, 2025 | 141% over the limit |
| Copper, total recoverable | 4 | 14 | 14 | October 31, 2024 | 659% over the limit |
| Solids, total suspended | 4 | 23 | 3 | October 31, 2011 | 34% over the limit |
| Oil and grease, hexane extr method | 4 | 3 | 3 | October 31, 2023 | 33% over the limit |
| Oil & Grease | 0 | 25 | 1 | March 31, 1998 | 754% over the limit |
| pH | 2 | 11 | 1 | June 30, 2026 | |
| Total toxic organics [TTO] [40 CFR433] | 1 | 24 | 0 | ||
| Fluoride, total [as F] | 4 | 22 | 0 | ||
| Sulfate, total [as SO4] | 1 | 14 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 10 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 10 | 0 | ||
| Chromium, total [as Cr] | 0 | 10 | 0 | ||
| Nickel, total recoverable | 4 | 0 | 0 | ||
| Chromium, total recoverable | 4 | 0 | 0 | ||
| Phosphorus, total [as P] | 2 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 1 | 0 | 0 | ||
| Flow, total | 1 | 0 | 0 |
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 22, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| January 22, 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
| Date | What EPA recorded | Agency |
|---|---|---|
| September 25, 2026 | Notice of Noncompliance Issued | State |
| January 22, 2026 | Notice of Noncompliance Issued | State |
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.