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Clean Water Act discharge permit · NPDES NC0020648

WASHINGTON WWTP, Washington, NC: NPDES NC0020648 discharge permit, effluent exceedances, inspections, penalties

WASHINGTON WWTP, held by City of Washington, holds NPDES permit NC0020648. EPA’s file records it issued June 2, 2021 and expiring November 30, 2025.

WASHINGTON WWTP, Washington, North Carolina: Individual permit NC0020648, held by City of Washington; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued June 2, 2021, term to November 30, 2025; Sewage Treatment Facilities.

  • Flow, in conduit or thru treatment plant: 1 limit, 7 violations of any kind, 3 effluent exceedances, latest June 30, 2021, largest 24% over the limit.
  • Chlorine, total residual: 1 limit, 1 violation of any kind, 1 effluent exceedance, latest October 31, 2007, largest 418% over the limit.
  • Nitrogen, total [as N]: 2 limits, 118 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 2 limits, 118 violations of any kind, 0 effluent exceedances.
  • Fecal coliform, MPN, EC med, 44.5 C: 0 limits, 46 violations of any kind, 0 effluent exceedances.
  • BOD, 5-day, 20 deg. C: 3 limits, 23 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 3 limits, 23 violations of any kind, 0 effluent exceedances.
  • Nitrogen, ammonia total [as N]: 2 limits, 13 violations of any kind, 0 effluent exceedances.
  • Flow, total: 1 limit, 4 violations of any kind, 0 effluent exceedances.
  • pH: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Coliform, fecal MF, MFC broth, 44.5 C: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Temperature, water deg. centigrade: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Conductivity: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Oxygen, dissolved [DO]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Nitrogen, Kjeldahl, total [as N]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Nitrite + Nitrate total [as N]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • April 16, 2026: Evaluation (S).

North Carolina holds 95 Publicly owned treatment works coverages of this permit type in EPA’s file; 85 were issued before NC0020648. City of Washington holds 10 permits in North Carolina.

Other permits held by City of Washington

Coverages issued nearest NC0020648

WASHINGTON WWTP among its neighbors

EPA’s permit file holds 13 discharge permits in the Fisher Swamp-Little Swift Creek subwatershed (HUC 030202020505), NC0020648 among them.

Other permits in the Fisher Swamp-Little Swift Creek subwatershed (HUC 030202020505)

Identity

Facility as filedWASHINGTON WWTP
Permittee as filedCity of Washington
NPDES IDNC0020648
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 2, 2021
Expiration dateNovember 30, 2025
AddressWashington, NC 27889
SubwatershedFisher Swamp-Little Swift Creek (HUC 030202020505)
Program components on fileBiosolids, POTW, 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
Flow, in conduit or thru treatment plant173June 30, 202124% over the limit
Chlorine, total residual111October 31, 2007418% over the limit
Nitrogen, total [as N]21180
Phosphorus, total [as P]21180
Fecal coliform, MPN, EC med, 44.5 C0460
BOD, 5-day, 20 deg. C3230
Solids, total suspended3230
Nitrogen, ammonia total [as N]2130
Flow, total140
pH200
Coliform, fecal MF, MFC broth, 44.5 C200
Temperature, water deg. centigrade100
Conductivity100
Oxygen, dissolved [DO]100
Nitrogen, Kjeldahl, total [as N]100
Nitrite + Nitrate total [as N]100

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES NC0020648.

Inspections

DateWhat EPA recordedAgency
April 16, 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

EPA’s informal enforcement file holds no action for NPDES NC0020648.

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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 discharge permit NPDES NC0020648 for the WASHINGTON WWTP, held by City of Washington, which is listed as administratively continued and classed as a Major Discharger. The page lists 15 pollutants under a numeric limit and 2 pollutants with an effluent exceedance, with the permit's issue and expiration dates as filed in EPA's permit file.