Clean Water Act discharge permit · NPDES NC0057151
MARS HILL WWTP, Mars Hill, NC: NPDES NC0057151 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
MARS HILL WWTP, held by Town of Mars Hill, holds NPDES permit NC0057151. EPA’s file records it issued February 2, 2016 and expiring September 30, 2020. 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 | MARS HILL WWTP |
|---|---|
| Permittee as filed | Town of Mars Hill |
| NPDES ID | NC0057151 |
| 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 | February 2, 2016 |
| Expiration date | September 30, 2020 |
| Address | Mars Hill, NC 28754 |
| Subwatershed | Hickory Creek-Broad River (HUC 030501050302) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 9Under a numeric limit
- 11With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 4 | 32 | 10 | September 30, 2023 | 400% over the limit |
| Coliform, fecal MF, MFC broth, 44.5 C | 2 | 7 | 2 | January 31, 2024 | 645% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 33 | 0 | ||
| Solids, total suspended | 3 | 33 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 6 | 0 | ||
| Temperature, water deg. centigrade | 3 | 5 | 0 | ||
| Oxygen, dissolved [DO] | 3 | 5 | 0 | ||
| Chlorine, total residual | 1 | 3 | 0 | ||
| Nitrogen, total [as N] | 0 | 3 | 0 | ||
| Phosphorus, total [as P] | 0 | 3 | 0 | ||
| pH | 2 | 2 | 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 NC0057151.
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 NC0057151 there.
Nearby on the register
- Discharge permits in Mars Hill
- Every permit record in Mars Hill, A to Z
- Discharge permits in North Carolina
- Every permit record in North Carolina, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.