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Clean Water Act discharge permit · NPDES NC0021601

TRYON WWTP, Tryon, NC: NPDES NC0021601 discharge permit, effluent exceedances, inspections, penalties

TRYON WWTP, held by Town of Tryon, holds NPDES permit NC0021601. EPA’s file records it issued June 17, 2020 and expiring December 31, 2024.

TRYON WWTP, Tryon, North Carolina: Individual permit NC0021601, held by Town of Tryon; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued June 17, 2020, term to December 31, 2024; Sewage Treatment Facilities.

  • Coliform, fecal MF, MFC broth, 44.5 C: 2 limits, 20 violations of any kind, 10 effluent exceedances, latest December 31, 2025, largest 160% over the limit.
  • Nitrogen, ammonia total [as N]: 4 limits, 12 violations of any kind, 10 effluent exceedances, latest October 31, 2025, largest 299% over the limit.
  • Oxygen, dissolved [DO]: 5 limits, 6 violations of any kind, 4 effluent exceedances, latest June 30, 2005, largest 56% over the limit.
  • Copper, total [as Cu]: 1 limit, 2 violations of any kind, 2 effluent exceedances, latest October 31, 2025, largest 68% over the limit.
  • pH: 2 limits, 1 violation of any kind, 1 effluent exceedance, latest May 31, 2012.
  • BOD, 5-day, 20 deg. C: 3 limits, 29 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 3 limits, 28 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 1 limit, 3 violations of any kind, 0 effluent exceedances.
  • Temperature, water deg. centigrade: 5 limits, 2 violations of any kind, 0 effluent exceedances.
  • Conductivity: 4 limits, 2 violations of any kind, 0 effluent exceedances.
  • Chloride [as Cl]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Chlorine, total residual: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • September 30, 2026: Notice of Violation (State).
  • August 28, 2026: Evaluation (S).
  • August 26, 2026: Evaluation (S).
  • December 19, 2023: Permit Violations - Unapproved Operation (ST6).

North Carolina holds 95 Publicly owned treatment works coverages of this permit type in EPA’s file; 54 were issued before NC0021601. Town of Tryon holds 3 permits in North Carolina.

Other permits held by Town of Tryon

Coverages issued nearest NC0021601

TRYON WWTP among its neighbors

EPA’s permit file holds 34 discharge permits in the Upper South Pacolet River subwatershed (HUC 030501051301), NC0021601 among them.

Other permits in the Upper South Pacolet River subwatershed (HUC 030501051301)

Identity

Facility as filedTRYON WWTP
Permittee as filedTown of Tryon
NPDES IDNC0021601
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedJune 17, 2020
Expiration dateDecember 31, 2024
AddressTryon, NC 28782
SubwatershedUpper South Pacolet River (HUC 030501051301)
Program components on filePOTW, Pretreatment
NAICS221320 – Sewage Treatment Facilities
SIC4952 – Sewerage Systems

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Coliform, fecal MF, MFC broth, 44.5 C22010December 31, 2025160% over the limit
Nitrogen, ammonia total [as N]41210October 31, 2025299% over the limit
Oxygen, dissolved [DO]564June 30, 200556% over the limit
Copper, total [as Cu]122October 31, 202568% over the limit
pH211May 31, 2012
BOD, 5-day, 20 deg. C3290
Solids, total suspended3280
Flow, in conduit or thru treatment plant130
Temperature, water deg. centigrade520
Conductivity420
Chloride [as Cl]100
Chlorine, total residual100

Inspections, violations and enforcement

DateWhat EPA recordedAgency
December 19, 2023Permit Violations - Unapproved OperationST6

Inspections

DateWhat EPA recordedAgency
August 28, 2026EvaluationS
August 26, 2026EvaluationS

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

DateWhat EPA recordedAgency
September 30, 2026Notice of ViolationState

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers the Clean Water Act NPDES discharge permit NC0021601 for TRYON WWTP in Tryon, NC, held by Town of Tryon, which is listed as administratively continued and classed as a major discharger. The figures on file are 12 pollutants on file, 12 pollutants under a numeric limit, and 5 pollutants with an effluent exceedance.