NPDES IN0020516 · Clean Water Act
WINAMAC WWTP, Winamac, IN: NPDES IN0020516 discharge permit, effluent exceedances, inspections, penalties
WINAMAC WWTP, Winamac, Indiana: Individual permit IN0020516; Publicly owned treatment works; Administratively continued; issued August 5, 2016, term to September 30, 2021, by IDEM; discharges to TIPPECANOE R TO WABASH RIVER.
4 of the 30 pollutants listed for NPDES IN0020516 have no violation or effluent exceedance.
- Nitrogen, ammonia total [as N]: 8 limits, 68 violations of any kind, 68 effluent exceedances, latest April 30, 2026, largest 160% over the limit.
- Chlorine, total residual: 4 limits, 21 violations of any kind, 21 effluent exceedances, latest July 31, 2026, largest 500% over the limit.
- Phosphorus, total [as P]: 1 limit, 13 violations of any kind, 13 effluent exceedances, latest November 30, 2025, largest 79% over the limit.
- BOD, carb-5 day, 20 deg C, percent removal: 0 limits, 7 violations of any kind, 7 effluent exceedances, latest April 30, 2003, largest 73% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 4 limits, 7 violations of any kind, 1 effluent exceedance, latest February 28, 2003, largest 9% over the limit.
- pH: 2 limits, 2 violations of any kind, 1 effluent exceedance, latest April 30, 2025.
- E. coli, colony forming units [CFU]: 3 limits, 1 violation of any kind, 1 effluent exceedance, latest October 31, 2015, largest 140% over the limit.
- Copper, total recoverable: 3 limits, 7 violations of any kind.
- Nickel, total recoverable: 3 limits, 6 violations of any kind.
- Zinc, total recoverable: 3 limits, 6 violations of any kind.
- Lead, total recoverable: 3 limits, 6 violations of any kind.
- Toxicity [chronic], Ceriodaphnia dubia: 3 limits, 4 violations of any kind.
- Toxicity [chronic], Pimephales promelas [Fathead Minnow]: 3 limits, 4 violations of any kind.
- Toxicity [acute], Ceriodaphnia dubia: 3 limits, 3 violations of any kind.
- Toxicity [acute], Pimephales promelas [Fathead Minnow]: 3 limits, 3 violations of any kind.
- Precipitation, monthly accumulation: 3 limits, 3 violations of any kind.
- Flow, total: 1 limit, 3 violations of any kind.
- Copper, dry weight: 2 limits, 2 violations of any kind.
- Cadmium, dry weight: 2 limits, 2 violations of any kind.
- Number of Events: 2 limits, 2 violations of any kind.
- Molybdenum, sludge, total, dry weight [as Mo]: 2 limits, 2 violations of any kind.
- Zinc, sludge, total, dry weight [as Zn]: 2 limits, 2 violations of any kind.
- Lead, sludge, total, dry weight [as Pb]: 2 limits, 2 violations of any kind.
- Nickel, sludge, total, dry weight [as Ni]: 2 limits, 2 violations of any kind.
- Mercury, sludge, total, dry weight [as Hg]: 2 limits, 2 violations of any kind.
- Overflow volume [SS0 volume, CSO volume]: 3 limits, 1 violation of any kind.
- Solids, total suspended: 4 limits.
- Duration: 3 limits.
- Discharge event observation [Visual Monitoring]: 3 limits.
- Flow, in conduit or thru treatment plant: 1 limit.
- July 16, 2026: Management Practice Violations - Improper Operation and Maintenance (ST6).
- July 16, 2026: Management Practice Violations - Failure to Develop/Enforce Standards (ST6).
- July 16, 2026: Monitoring Violations - Frequency of Sampling Violation (ST6).
- July 16, 2026: Monitoring Violations - Invalid/Unrepresentative Sample (ST6).
- July 16, 2026: Effluent Violations - Numeric effluent violation (ST6).
- July 16, 2026: Evaluation (S).
- July 16, 2026: Evaluation (S).
- July 16, 2026: Notice of Noncompliance Issued (State).
Indiana holds 541 Publicly owned treatment works coverages of this permit type in EPA’s file; 24 were issued before IN0020516.
Coverages issued nearest IN0020516
- 2016-06-24: MARENGO MUNICIPAL WWTP, Marengo: IN0040291
- 2016-06-24: GREENVILLE WWTP, Greenville: IN0062553
- 2016-07-08: CLINTON MUNICIPAL WWTP, Clinton: IN0022608
- 2016-07-08: WINSLOW MUNICIPAL WWTP, Winslow: IN0040789
- 2016-07-11: BERKSHIRE POINTE HCRSD WWTP, New Salisbury: IN0042005, held by BERKSHIRE POINTE HCRSD NEW SALISBURY
- 2016-08-05: FARMLAND MUNICIPAL STP, Farmland: IN0021512, held by FARMLAND WWTP
- 2016-08-12: KOKOMO WWTP, Kokomo: IN0032875, held by KOKOMO WWTP, CITY OF
- 2016-08-12: AQUA INDIANA MAIN ABOITE WWTP, Fort Wayne: IN0035378, held by AQUA INDIANA MAIN ABOITE
- 2016-08-12: SHIPSHEWANA WWTP, Shipshewana: IN0040622
- 2016-08-12: LAKE OF THE WOODS REG SEW DIST, Bremen: IN0057002
WINAMAC WWTP among its neighbors
9 discharge permits are in the Tyler Weisjahn Ditch-Tippecane Ditch subwatershed (HUC 051201060608); IN0020516 is one. Its county: 18, 0 major; IN0020516 is minor permit.
Other permits in the Tyler Weisjahn Ditch-Tippecane Ditch subwatershed (HUC 051201060608)
- BRAUN CORPORATION, Winamac: INRM01571, minor, term to 2024-05-23
- CROSSROADS SEAMLESS USA LLC, Winamac: INRM03127, minor, term to 2029-11-18
- GALFAB ACQUISITIONS LLC, Winamac: INRM01472, minor, term to 2023-02-21
- INDIANA MUNICIPAL POWER AGENCY WINAMAC SOLAR PARK, Winamac: INRA12657, minor, term to 2028-10-03
- IRVING MATERIALS INC WINAMAC, Winamac: INRM00333, minor, term to 2026-03-14
- PLYMOUTH TUBE COMPANY, Winamac: INRM02341, minor, term to 2023-05-28
- TOWN OF WINAMAC STREETSCAPE AND LIGHTING, Winamac: INRA09375, minor, term to 2027-03-22
- WINIMAC HIGH SCHOOL ATHLETIC EXPANSION PROJECT, Winamac: INRA11913, minor, term to 2028-06-04
Identity
| Facility | WINAMAC WWTP |
|---|---|
| Permittee | WINAMAC WWTP |
| NPDES ID | IN0020516 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Minor |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 5, 2016 |
| Expires | September 30, 2021 |
| Agency | IDEM |
| Address | Winamac, IN 46996 |
| Receiving water | TIPPECANOE R TO WABASH RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Tyler Weisjahn Ditch-Tippecane Ditch (HUC 051201060608) |
| Program components on file | CSO, POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
NPDES IN0020516: effluent limits and exceedances
WINAMAC WWTP (NPDES IN0020516): 30 pollutants on file, 29 limited; 26 with a violation of any kind, 7 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 8 | 68 | 68 | April 30, 2026 | 160% over the limit |
| Chlorine, total residual | 4 | 21 | 21 | July 31, 2026 | 500% over the limit |
| Phosphorus, total [as P] | 1 | 13 | 13 | November 30, 2025 | 79% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 0 | 7 | 7 | April 30, 2003 | 73% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 7 | 1 | February 28, 2003 | 9% over the limit |
| pH | 2 | 2 | 1 | April 30, 2025 | |
| E. coli, colony forming units [CFU] | 3 | 1 | 1 | October 31, 2015 | 140% over the limit |
| Copper, total recoverable | 3 | 7 | 0 | ||
| Nickel, total recoverable | 3 | 6 | 0 | ||
| Zinc, total recoverable | 3 | 6 | 0 | ||
| Lead, total recoverable | 3 | 6 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 3 | 4 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 3 | 4 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 3 | 3 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 3 | 3 | 0 | ||
| Precipitation, monthly accumulation | 3 | 3 | 0 | ||
| Flow, total | 1 | 3 | 0 | ||
| Copper, dry weight | 2 | 2 | 0 | ||
| Cadmium, dry weight | 2 | 2 | 0 | ||
| Number of Events | 2 | 2 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 2 | 2 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 2 | 2 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 2 | 2 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 2 | 2 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 2 | 2 | 0 | ||
| Overflow volume [SS0 volume, CSO volume] | 3 | 1 | 0 | ||
| Solids, total suspended | 4 | 0 | 0 | ||
| Duration | 3 | 0 | 0 | ||
| Discharge event observation [Visual Monitoring] | 3 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 0 | 0 |
NPDES IN0020516: inspections, violations and enforcement
NPDES IN0020516: 5 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 16, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| July 16, 2026 | Management Practice Violations - Failure to Develop/Enforce Standards | ST6 |
| July 16, 2026 | Monitoring Violations - Frequency of Sampling Violation | ST6 |
| July 16, 2026 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| July 16, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
NPDES IN0020516: 2 inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| July 16, 2026 | Evaluation | S |
| July 16, 2026 | Evaluation | S |
NPDES IN0020516: 1 informal enforcement action
| Date | What EPA recorded | Agency |
|---|---|---|
| July 16, 2026 | Notice of Noncompliance Issued | State |
NPDES IN0020516 (WINAMAC WWTP): no formal enforcement action on file.
Watch NPDES IN0020516
NPDES IN0020516: one email when its EPA record changes — $99/month.
Permits near NPDES IN0020516
NPDES IN0020516: 30 pollutant rows, 8 dated events; ICIS-NPDES download, loaded October 14, 2026.