Clean Water Act discharge permit · NPDES TN0028789
JOHNSON CITY REGIONAL WWTP, Gray, TN: NPDES TN0028789 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 18Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
JOHNSON CITY REGIONAL WWTP, held by City of Johnson City, holds NPDES permit TN0028789, which discharges to Holston-South Fork (D/S Of Watauga). EPA’s file records it issued March 15, 2018 and expiring March 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | JOHNSON CITY REGIONAL WWTP |
|---|---|
| Permittee as filed | City of Johnson City |
| NPDES ID | TN0028789 |
| 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 | March 15, 2018 |
| Expiration date | March 31, 2023 |
| Issuing agency | TDEC - DWR |
| Address | Gray, TN 37615 |
| Receiving water | Holston-South Fork (D/S Of Watauga) |
| Subwatershed | Fort Patrick Henry Lake (HUC 060101020701) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 18Pollutants on file
- 18Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| SSO, Dry Weather | 1 | 17 | 14 | July 31, 2025 | 2,147,483,650% over the limit |
| Nitrogen, ammonia total [as N] | 10 | 9 | 9 | June 30, 2009 | 67% over the limit |
| SSO, Wet Weather | 1 | 3 | 3 | July 31, 2026 | 2,147,483,650% over the limit |
| Nitrogen, total [as N] | 2 | 4 | 0 | ||
| Phosphorus, total [as P] | 2 | 4 | 0 | ||
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 4 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 1 | 4 | 0 | ||
| Solids, total suspended | 7 | 0 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 7 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| E. coli | 2 | 0 | 0 | ||
| Overflows | 2 | 0 | 0 | ||
| BOD, carbonaceous, percent removal | 2 | 0 | 0 | ||
| Solids, suspended percent removal | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Solids, settleable | 1 | 0 | 0 | ||
| Bypass valve | 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 TN0028789.
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 TN0028789 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.