Clean Water Act discharge permit · NPDES TN0021539
ALEXANDRIA STP, Alexandria, TN: NPDES TN0021539 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 15Pollutants under a numeric limit
- 12Pollutants with an effluent exceedance
ALEXANDRIA STP, held by Town of Alexandria, holds NPDES permit TN0021539, which discharges to Caney Fork. EPA’s file records it issued July 1, 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 | ALEXANDRIA STP |
|---|---|
| Permittee as filed | Town of Alexandria |
| NPDES ID | TN0021539 |
| 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 | July 1, 2017 |
| Expiration date | July 31, 2022 |
| Issuing agency | TDEC - DWR |
| Address | Alexandria, TN 37012 |
| Receiving water | Caney Fork |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Hickman Creek (HUC 051301080906) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 19Pollutants on file
- 15Under a numeric limit
- 18With a violation of any kind
- 12With 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] | 10 | 126 | 100 | July 31, 2026 | 1,076% over the limit |
| Phosphorus, total [as P] | 3 | 78 | 46 | July 31, 2026 | 96% over the limit |
| Solids, total suspended | 7 | 89 | 40 | May 31, 2026 | 225% over the limit |
| Solids, suspended percent removal | 2 | 32 | 30 | July 31, 2026 | 117% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 12 | 70 | 19 | October 31, 2024 | 830% over the limit |
| pH | 2 | 23 | 18 | July 31, 2012 | |
| Nitrogen, total [as N] | 2 | 27 | 16 | April 30, 2026 | 87% over the limit |
| Nitrite + Nitrate total [as N] | 3 | 33 | 12 | June 30, 2019 | 86% over the limit |
| Carbonaceous oxygen demand, % removal | 0 | 12 | 10 | January 31, 2007 | 508% over the limit |
| Oxygen, dissolved [DO] | 1 | 8 | 7 | August 31, 2025 | 33% over the limit |
| E. coli | 2 | 7 | 3 | June 30, 2023 | 52% over the limit |
| Solids, settleable | 1 | 6 | 3 | May 31, 2007 | 650% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 51 | 0 | ||
| Bypass valve | 0 | 4 | 0 | ||
| BOD, carbonaceous, percent removal | 2 | 2 | 0 | ||
| Overflows | 2 | 1 | 0 | ||
| SSO, Dry Weather | 0 | 1 | 0 | ||
| SSO, Wet Weather | 0 | 1 | 0 | ||
| Bypass of Treatment Facility | 1 | 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 TN0021539.
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, TN0021539.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 TN0021539 there.
Nearby on the register
- Discharge permits in Alexandria
- Every permit record in Alexandria, A to Z
- Discharge permits in Tennessee
- Every permit record in Tennessee, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.