Clean Water Act discharge permit · NPDES MSP091349
AEI LLC, Senatobia, MS: NPDES MSP091349 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
AEI LLC holds NPDES permit MSP091349, which discharges to Ms0052221 - Senatobia Potw. EPA’s file records it issued August 3, 2017 and expiring July 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 | AEI LLC |
|---|---|
| Permittee as filed | AEI LLC |
| NPDES ID | MSP091349 |
| Permit status | Effective |
| Permit type | Individual industrial user permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 3, 2017 |
| Expiration date | July 31, 2022 |
| Issuing agency | MDEQ |
| Address | Senatobia, MS 38668 |
| Receiving water | MS0052221 - SENATOBIA POTW |
| Other EPA IDs (FRS) | RCRA handler MSR000004549; ICIS-AIR source MS0000002813700026 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 9Pollutants on file
- 6Under a numeric limit
- 9With 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 |
|---|---|---|---|---|---|
| Zinc, total recoverable | 4 | 88 | 32 | July 31, 2021 | 619% over the limit |
| Chromium, total recoverable | 4 | 86 | 8 | November 30, 2007 | 350% over the limit |
| Oil and grease, hexane extr method | 4 | 58 | 2 | March 31, 2008 | 31% over the limit |
| pH | 2 | 34 | 2 | May 31, 2014 | |
| Cyanide, total recoverable | 0 | 1 | 1 | November 30, 2007 | 525% over the limit |
| Cyanide, total [as CN] | 4 | 64 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 28 | 0 | ||
| Total production - mass | 0 | 12 | 0 | ||
| Copper, total recoverable | 0 | 4 | 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
- 6Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 1, 2020 | Monitoring Violations - Frequency of Sampling Violation | ST6 |
| September 25, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| July 18, 2019 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| February 1, 2019 | Monitoring Violations - Analysis not Conducted | ST6 |
| November 1, 2018 | Monitoring Violations - Analysis not Conducted | ST6 |
| November 1, 2018 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
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, MSP091349.
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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 MSP091349 there.
Nearby on the register
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- Every permit record in Mississippi, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.