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Clean Water Act discharge permit · NPDES NC0040266

KNIGHTDALE ESTATES MHP WWTP, Knightdale, NC: NPDES NC0040266 discharge permit, effluent exceedances, inspections, penalties

KNIGHTDALE ESTATES MHP WWTP, held by Knightdale Estates MHP Limited Partnership, holds NPDES permit NC0040266. EPA’s file records it issued January 30, 2018 and expiring February 28, 2023.

KNIGHTDALE ESTATES MHP WWTP, Knightdale, North Carolina: Individual permit NC0040266, held by Knightdale Estates MHP Limited Partnership; Administratively continued (past its expiration date and still in force until reissued); issued January 30, 2018, term to February 28, 2023.

  • Coliform, fecal MF, MFC broth, 44.5 C: 2 limits, 124 violations of any kind, 17 effluent exceedances, latest July 31, 2025, largest 1,400% over the limit.
  • Solids, total suspended: 2 limits, 117 violations of any kind, 10 effluent exceedances, latest June 30, 2024, largest 380% over the limit.
  • Nitrogen, ammonia total [as N]: 4 limits, 121 violations of any kind, 4 effluent exceedances, latest October 31, 2020, largest 65% over the limit.
  • Flow, in conduit or thru treatment plant: 1 limit, 75 violations of any kind, 2 effluent exceedances, latest December 31, 2018, largest 5% over the limit.
  • Nitrogen, total [as N]: 2 limits, 233 violations of any kind, 0 effluent exceedances.
  • BOD, 5-day, 20 deg. C: 4 limits, 117 violations of any kind, 0 effluent exceedances.
  • Temperature, water deg. centigrade: 3 limits, 109 violations of any kind, 0 effluent exceedances.
  • Oxygen, dissolved [DO]: 3 limits, 109 violations of any kind, 0 effluent exceedances.
  • Nitrogen, Kjeldahl, total [as N]: 1 limit, 103 violations of any kind, 0 effluent exceedances.
  • Nitrite + Nitrate total [as N]: 1 limit, 103 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 1 limit, 103 violations of any kind, 0 effluent exceedances.
  • Chlorine, total residual: 1 limit, 101 violations of any kind, 0 effluent exceedances.
  • pH: 2 limits, 74 violations of any kind, 0 effluent exceedances.
  • Flow, total: 1 limit, 2 violations of any kind, 0 effluent exceedances.
  • May 6, 2026: Notice of Violation (State).

KNIGHTDALE ESTATES MHP WWTP among its neighbors

EPA’s permit file holds 65 discharge permits in the Polecat Branch-Neuse River subwatershed (HUC 030202011702), NC0040266 among them.

Other permits in the Polecat Branch-Neuse River subwatershed (HUC 030202011702)

Identity

Facility as filedKNIGHTDALE ESTATES MHP WWTP
Permittee as filedKnightdale Estates MHP Limited Partnership
NPDES IDNC0040266
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJanuary 30, 2018
Expiration dateFebruary 28, 2023
AddressKnightdale, NC 27545
SubwatershedPolecat Branch-Neuse River (HUC 030202011702)

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 C212417July 31, 20251,400% over the limit
Solids, total suspended211710June 30, 2024380% over the limit
Nitrogen, ammonia total [as N]41214October 31, 202065% over the limit
Flow, in conduit or thru treatment plant1752December 31, 20185% over the limit
Nitrogen, total [as N]22330
BOD, 5-day, 20 deg. C41170
Temperature, water deg. centigrade31090
Oxygen, dissolved [DO]31090
Nitrogen, Kjeldahl, total [as N]11030
Nitrite + Nitrate total [as N]11030
Phosphorus, total [as P]11030
Chlorine, total residual11010
pH2740
Flow, total120

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES NC0040266.

Inspections

EPA’s inspection file holds no inspection for NPDES NC0040266.

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
May 6, 2026Notice of ViolationState

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES NC0040266 for the KNIGHTDALE ESTATES MHP WWTP in Knightdale, NC, held by Knightdale Estates MHP Limited Partnership and listed as administratively continued. The facts list 14 pollutants on file, 14 under a numeric limit, 14 with a violation of any kind, and 4 with an effluent exceedance, within the Polecat Branch-Neuse River subwatershed (HUC 030202011702).