Clean Water Act discharge permit · NPDES IN0045187
SOUTH CENTRAL RSD CASLON WWTP, Bloomington, IN: NPDES IN0045187 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
SOUTH CENTRAL RSD CASLON WWTP, held by SOUTH CENTRAL RSD / CASLON WWTP, holds NPDES permit IN0045187, which discharges to Salt Cr (E White) Via Clear Creek. EPA’s file records it issued April 28, 2017 and expiring July 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | SOUTH CENTRAL RSD CASLON WWTP |
|---|---|
| Permittee as filed | SOUTH CENTRAL RSD / CASLON WWTP |
| NPDES ID | IN0045187 |
| 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 | April 28, 2017 |
| Expiration date | July 31, 2022 |
| Issuing agency | IDEM |
| Address | Bloomington, IN 47401 |
| Receiving water | SALT CR (E WHITE) VIA CLEAR CREEK |
| Subwatershed | Little Clear Creek-Clear Creek (HUC 051202080803) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 9Under a numeric limit
- 13With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 4 | 18 | 6 | May 31, 2025 | 21% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 5 | 5 | July 31, 2024 | 67% over the limit |
| E. coli, colony forming units [CFU] | 3 | 3 | 2 | June 30, 2022 | 62% over the limit |
| pH | 2 | 7 | 1 | December 31, 1997 | |
| Chlorine, total residual | 0 | 1 | 1 | October 31, 1997 | 900% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 12 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| Flow, wastewater by-passing trtmnt plant | 0 | 3 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 0 | 3 | 0 | ||
| Solids, suspended percent removal | 0 | 3 | 0 | ||
| Number of Events | 2 | 1 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 1 | 0 | ||
| Flow, total | 1 | 1 | 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 IN0045187.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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
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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 IN0045187 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.