Clean Water Act discharge permit · NPDES TN0080721
WEST KNOX UD (WKUD) - MELTON HILL POTW, Knoxville, TN: NPDES TN0080721 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 19Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
WEST KNOX UD (WKUD) - MELTON HILL POTW, held by West Knox Utility District (WKUD), holds NPDES permit TN0080721, which discharges to Clinch-Lower. EPA’s file records it issued April 1, 2018 and expiring March 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 | WEST KNOX UD (WKUD) - MELTON HILL POTW |
|---|---|
| Permittee as filed | West Knox Utility District (WKUD) |
| NPDES ID | TN0080721 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 1, 2018 |
| Expiration date | March 31, 2023 |
| Issuing agency | TDEC - DWR |
| Address | Knoxville, TN 37950 |
| Receiving water | Clinch-Lower |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Clinch River-Conner Creek (HUC 060102070404) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 23Pollutants on file
- 19Under a numeric limit
- 20With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| SSO, Dry Weather | 3 | 19 | 19 | July 31, 2026 | 2,147,483,650% over the limit |
| SSO, Wet Weather | 3 | 10 | 10 | February 28, 2025 | 2,147,483,650% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 9 | 6 | February 29, 2020 | 168% over the limit |
| E. coli | 2 | 8 | 6 | September 30, 2023 | 99,999% over the limit |
| Solids, suspended percent removal | 2 | 2 | 1 | January 31, 2020 | 33% over the limit |
| Solids, settleable | 1 | 2 | 1 | May 31, 2022 | 10% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 7 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| Carbonaceous oxygen demand, % removal | 2 | 3 | 0 | ||
| Solids, total suspended | 7 | 2 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Nitrogen, total [as N] | 2 | 2 | 0 | ||
| Phosphorus, total [as P] | 2 | 2 | 0 | ||
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 2 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 1 | 2 | 0 | ||
| Nitrogen, total, percent removal [%] | 0 | 2 | 0 | ||
| Overflows | 0 | 2 | 0 | ||
| Phosphorus, total percent removal | 0 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 1 | 0 | ||
| Bypass valve | 0 | 1 | 0 | ||
| Release [Sewer], Dry Weather | 2 | 0 | 0 | ||
| Release [Sewer], Wet Weather | 2 | 0 | 0 | ||
| Bypass of Treatment Facility | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 12, 2020 | Pretreatment - Failure to Establish Self-Monitoring Requirements | ST6 |
| March 12, 2020 | Pretreatment - Failure to Meet Inspection and Sampling Plan for SIUs | 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.
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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 TN0080721 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.