Clean Water Act discharge permit · NPDES TN0074331
TDOT I-65 WELCOME CENTER - GILES COUNTY, Ardmore, TN: NPDES TN0074331 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
TDOT I-65 WELCOME CENTER - GILES COUNTY, held by Tennessee Department of Transportation (TDOT), holds NPDES permit TN0074331, which discharges to Elk-Upper. EPA’s file records it issued December 1, 2017 and expiring November 30, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | TDOT I-65 WELCOME CENTER - GILES COUNTY |
|---|---|
| Permittee as filed | Tennessee Department of Transportation (TDOT) |
| NPDES ID | TN0074331 |
| 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 | December 1, 2017 |
| Expiration date | November 30, 2022 |
| Issuing agency | TDEC - DWR |
| Address | Ardmore, TN 38449 |
| Receiving water | Elk-Upper |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Elk River-Kelly Creek (HUC 060300030905) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 3Pollutants on file
- 0Under a numeric limit
- 3With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| pH | 0 | 7 | 7 | December 31, 2024 | |
| E. coli | 0 | 2 | 2 | August 31, 2024 | 397% over the limit |
| Oxygen, dissolved [DO] | 0 | 1 | 1 | January 31, 2023 | 5% over the limit |
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 TN0074331.
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 TN0074331 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.