Clean Water Act discharge permit · NPDES IN0061671
HMSC MEMPHIS WWTP, Henryville, IN: NPDES IN0061671 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
HMSC MEMPHIS WWTP, held by HMSC-MEMPHIS WWTP, holds NPDES permit IN0061671, which discharges to Silver Creek To The Ohio River. EPA’s file records it issued October 27, 2017 and expiring January 31, 2023. 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 | HMSC MEMPHIS WWTP |
|---|---|
| Permittee as filed | HMSC-MEMPHIS WWTP |
| NPDES ID | IN0061671 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 27, 2017 |
| Expiration date | January 31, 2023 |
| Issuing agency | IDEM |
| Address | Henryville, IN 47143 |
| Receiving water | SILVER CREEK TO THE OHIO RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Pleasant Run-Silver Creek (HUC 051401010805) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 8With a violation of any kind
- 4With 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 | 8 | 22 | 14 | September 30, 2019 | 71% over the limit |
| Nitrogen, ammonia total [as N] | 8 | 18 | 14 | July 31, 2025 | 870% over the limit |
| Oxygen, dissolved [DO] | 2 | 5 | 3 | September 30, 2019 | 7% over the limit |
| pH | 2 | 5 | 1 | April 30, 2016 | |
| BOD, carbonaceous [5 day, 20 C] | 8 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| E. coli, colony forming units [CFU] | 3 | 2 | 0 | ||
| Flow, total | 1 | 2 | 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 IN0061671.
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
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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 IN0061671 there.
Nearby on the register
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- Every permit record in Henryville, A to Z
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- Every permit record in Indiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.