Clean Water Act discharge permit · NPDES TN0027804
CMC STEEL TENNESSEE, Knoxville, TN: NPDES TN0027804 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
CMC STEEL TENNESSEE, held by CMC Steel US, LLC, holds NPDES permit TN0027804, which discharges to Ft. Loudoun/Little River. EPA’s file records it issued October 27, 2017 and expiring April 30, 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 | CMC STEEL TENNESSEE |
|---|---|
| Permittee as filed | CMC Steel US, LLC |
| NPDES ID | TN0027804 |
| 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 |
| Program | Industrial stormwater |
| Issued | October 27, 2017 |
| Expiration date | April 30, 2022 |
| Issuing agency | TDEC - DWR |
| Address | Knoxville, TN 37950 |
| Receiving water | Ft. Loudoun/Little River |
| Subwatershed | Third Creek (HUC 060102010202) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 12Under a numeric limit
- 13With a violation of any kind
- 7With 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 | 1 | 50 | 18 | July 31, 2024 | 99,999% over the limit |
| Oil & Grease | 2 | 70 | 5 | May 31, 2020 | 77% over the limit |
| Aluminum, total [as Al] | 1 | 14 | 4 | December 31, 2024 | 294% over the limit |
| Cadmium, total [as Cd] | 1 | 13 | 2 | March 31, 2023 | 1% over the limit |
| pH | 2 | 67 | 1 | December 31, 2014 | |
| Copper, total [as Cu] | 1 | 11 | 1 | September 30, 2022 | 65% over the limit |
| Silver, total [as Ag] | 1 | 10 | 1 | December 31, 2024 | 484% over the limit |
| Flow, in conduit or thru treatment plant | 1 | 32 | 0 | ||
| Boron, total [as B] | 1 | 10 | 0 | ||
| Manganese, total [as Mn] | 1 | 10 | 0 | ||
| Zinc, dissolved [as Zn] | 1 | 10 | 0 | ||
| Lead, total [as Pb] | 1 | 9 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 6 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 31, 2019 | Effluent Violations - Reported Fish Kill | ST6 |
| December 21, 2018 | Effluent Violations - Unauthorized Discharge | 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
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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 TN0027804 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.