Clean Water Act discharge permit · NPDES AL0003867
TVA COLBERT COMBUSTION TURBINES FACILITY, Tuscumbia, AL: NPDES AL0003867 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 20Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
TVA COLBERT COMBUSTION TURBINES FACILITY, held by Tennessee Valley Authority, holds NPDES permit AL0003867. EPA’s file records it issued October 29, 2018 and expiring October 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 | TVA COLBERT COMBUSTION TURBINES FACILITY |
|---|---|
| Permittee as filed | Tennessee Valley Authority |
| NPDES ID | AL0003867 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Federal facility |
| Issued | October 29, 2018 |
| Expiration date | October 31, 2023 |
| Address | Tuscumbia, AL 35674 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Tanyard Branch-Cane Creek (HUC 060300050807) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 37Pollutants on file
- 20Under a numeric limit
- 28With 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 |
|---|---|---|---|---|---|
| Oil and grease | 0 | 26 | 4 | March 31, 2012 | 38% over the limit |
| pH | 18 | 27 | 3 | June 30, 2016 | |
| Solids, total suspended | 12 | 27 | 1 | December 31, 2009 | 10% over the limit |
| Flow, in conduit or thru treatment plant | 12 | 22 | 0 | ||
| Copper, total [as Cu] | 7 | 15 | 0 | ||
| Iron, total [as Fe] | 7 | 15 | 0 | ||
| Chlorine, free available | 0 | 10 | 0 | ||
| Chlorination duration | 0 | 6 | 0 | ||
| Iron, total recoverable | 0 | 5 | 0 | ||
| Chemical Oxygen Demand [COD] | 1 | 4 | 0 | ||
| Zinc, total recoverable | 0 | 4 | 0 | ||
| Lead, total recoverable | 0 | 4 | 0 | ||
| Manganese, total recoverable | 0 | 4 | 0 | ||
| Chlorine, total residual | 0 | 4 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 3 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 2 | 0 | ||
| Phosphorus, total [as P] | 1 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 2 | 0 | ||
| Arsenic, total recoverable | 0 | 2 | 0 | ||
| Hydrazine | 0 | 2 | 0 | ||
| Arsenic, total [as As] | 8 | 1 | 0 | ||
| Mercury, total [as Hg] | 4 | 1 | 0 | ||
| Mercury, total [low level] | 1 | 1 | 0 | ||
| Nitrogen, organic total [as N] | 0 | 1 | 0 | ||
| Copper, total recoverable | 0 | 1 | 0 | ||
| Solids, total dissolved | 0 | 1 | 0 | ||
| %Effect Static Renewal 48Hr Acute Ceriodaphnia dubia | 0 | 1 | 0 | ||
| %Effect Static Renewal 48Hr Acute Pimephales promelas | 0 | 1 | 0 | ||
| Oil & Grease | 9 | 0 | 0 | ||
| Lead, total [as Pb] | 5 | 0 | 0 | ||
| Selenium, total [as Se] | 5 | 0 | 0 | ||
| Nickel, total [as Ni] | 4 | 0 | 0 | ||
| Zinc, total [as Zn] | 4 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 3 | 0 | 0 | ||
| Cadmium, total [as Cd] | 2 | 0 | 0 | ||
| Chromium, total [as Cr] | 2 | 0 | 0 | ||
| Antimony, total [as Sb] | 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 AL0003867.
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 AL0003867 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.