Clean Water Act discharge permit · NPDES IN0030571
CHALMERS MUNICIPAL WWTP, Chalmers, IN: NPDES IN0030571 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
CHALMERS MUNICIPAL WWTP holds NPDES permit IN0030571, which discharges to Tippecanoe R Via Spring Creek. EPA’s file records it issued November 29, 2016 and expiring March 31, 2022. 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 | CHALMERS MUNICIPAL WWTP |
|---|---|
| Permittee as filed | CHALMERS MUNICIPAL WWTP |
| NPDES ID | IN0030571 |
| 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 | November 29, 2016 |
| Expiration date | March 31, 2022 |
| Issuing agency | IDEM |
| Address | Chalmers, IN 47929 |
| Receiving water | TIPPECANOE R VIA SPRING CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Spring Creek (HUC 051201061306) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 15Pollutants on file
- 12Under a numeric limit
- 14With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 8 | 21 | 4 | May 31, 2009 | 45% over the limit |
| E. coli, colony forming units [CFU] | 3 | 3 | 3 | May 31, 2016 | 33% over the limit |
| Solids, suspended percent removal | 1 | 4 | 2 | February 28, 2022 | 15% over the limit |
| Chlorine, total residual | 4 | 2 | 2 | May 31, 2016 | 88% over the limit |
| Solids, total suspended | 8 | 17 | 1 | July 31, 2024 | 19% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 1 | 1 | 1 | April 30, 2017 | 67% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 16 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 8 | 0 | ||
| pH | 2 | 6 | 0 | ||
| Streamflow | 0 | 4 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 4 | 0 | ||
| Flow, total | 1 | 2 | 0 | ||
| BOD, 5-day, percent removal | 0 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 1 | 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 IN0030571.
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.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IN0030571.
Start the watch
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID IN0030571 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.