Clean Water Act discharge permit · NPDES IN0032573
COLUMBUS WWTP, CITY OF, Columbus, IN: NPDES IN0032573 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 24Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
COLUMBUS WWTP, CITY OF holds NPDES permit IN0032573, which discharges to E Fk White R To White R To Wabash R. EPA’s file records it issued December 26, 2019 and expiring March 31, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | COLUMBUS WWTP, CITY OF |
|---|---|
| Permittee as filed | COLUMBUS WWTP, CITY OF |
| NPDES ID | IN0032573 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 26, 2019 |
| Expiration date | March 31, 2025 |
| Issuing agency | IDEM |
| Address | Columbus, IN 47201 |
| Receiving water | E FK WHITE R TO WHITE R TO WABASH R |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Little Haw Creek-Haw Creek (HUC 051202050605) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 36Pollutants on file
- 24Under a numeric limit
- 28With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| E. coli, colony forming units [CFU] | 5 | 57 | 51 | April 30, 2025 | 2,879% over the limit |
| Chlorine, total residual | 2 | 22 | 14 | April 30, 2018 | 2,267% over the limit |
| Nitrogen, ammonia total [as N] | 8 | 40 | 8 | June 30, 2011 | 32% over the limit |
| E. coli, MTEC-MF | 0 | 7 | 7 | June 30, 2001 | 26,794% over the limit |
| Solids, total suspended | 6 | 32 | 3 | February 29, 2008 | 431% over the limit |
| Lead, sludge, total, dry weight [as Pb] | 0 | 2 | 2 | June 30, 2007 | 303% over the limit |
| Phosphorus, total percent removal | 0 | 2 | 2 | September 30, 2003 | 396% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 19 | 1 | January 31, 2000 | 171% over the limit |
| pH | 4 | 19 | 1 | October 31, 2005 | |
| Copper, dry weight | 0 | 1 | 1 | December 31, 2009 | 2% over the limit |
| Cyanide, total [as CN] | 0 | 18 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 15 | 0 | ||
| Lead, total recoverable | 2 | 12 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 11 | 0 | ||
| Copper, total recoverable | 2 | 9 | 0 | ||
| Nickel, total recoverable | 2 | 8 | 0 | ||
| Zinc, total recoverable | 2 | 8 | 0 | ||
| Cadmium, total recoverable | 2 | 8 | 0 | ||
| Chromium, total recoverable | 2 | 8 | 0 | ||
| Flow, total | 2 | 5 | 0 | ||
| Cadmium, total [as Cd] | 0 | 4 | 0 | ||
| Chromium, total [as Cr] | 0 | 4 | 0 | ||
| Copper, total [as Cu] | 0 | 2 | 0 | ||
| Lead, total [as Pb] | 0 | 2 | 0 | ||
| Nickel, total [as Ni] | 0 | 2 | 0 | ||
| Zinc, total [as Zn] | 0 | 2 | 0 | ||
| Mercury, total [as Hg] | 0 | 2 | 0 | ||
| Phosphorus, total [as P] | 4 | 1 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 3 | 0 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 3 | 0 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 3 | 0 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 3 | 0 | 0 | ||
| Nitrogen, total [as N] | 2 | 0 | 0 | ||
| Cyanide, free [as free] | 2 | 0 | 0 | ||
| Cyanide, free [amenable to chlorination] | 2 | 0 | 0 | ||
| Number of Events | 2 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0032573.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.