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Clean Water Act discharge permit · NPDES MO0131261

ELM TREE ESTATES WWTP, Troy, MO: NPDES MO0131261 discharge permit, effluent exceedances, inspections, penalties

ELM TREE ESTATES WWTP, held by Elm Tree Estates Home Owners, holds NPDES permit MO0131261, which discharges to Tributary To Whitcomb Br.. EPA’s file records it issued November 20, 2019 and expiring March 31, 2024.

ELM TREE ESTATES WWTP, Troy, Missouri: Individual permit MO0131261, held by Elm Tree Estates Home Owners; Administratively continued (past its expiration date and still in force until reissued); issued November 20, 2019, term to March 31, 2024; discharges to Tributary to Whitcomb Br..

  • Oxygen, dissolved [DO]: 0 limits, 13 violations of any kind, 11 effluent exceedances, latest August 31, 2012, largest 40% over the limit.
  • BOD, 5-day, 20 deg. C: 2 limits, 3 violations of any kind, 3 effluent exceedances, latest September 30, 2020, largest 57% over the limit.
  • Solids, total suspended: 2 limits, 2 violations of any kind, 2 effluent exceedances, latest September 30, 2019, largest 400% over the limit.
  • Flow, in conduit or thru treatment plant: 2 limits, 6 violations of any kind, 0 effluent exceedances.
  • E. coli, colony forming units [CFU]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Nitrogen, ammonia total [as N]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
  • pH: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • E. coli: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • September 3, 2025: Effluent Violations - Numeric effluent violation (ST6).
  • September 30, 2020: Effluent Violations - Numeric effluent violation (ST6).
  • September 3, 2019: Effluent Violations - Numeric effluent violation (ST6).

ELM TREE ESTATES WWTP among its neighbors

EPA’s permit file holds 76 discharge permits in the Spring Creek-Cuivre River subwatershed (HUC 071100080403), MO0131261 among them. Its county holds 226, 2 of them major permits; MO0131261 is a minor permit.

Other permits in the Spring Creek-Cuivre River subwatershed (HUC 071100080403)

  • 72 COOPER LANE, Troy: MORA28433, minor permit, discharging to Tributary to Cuivre R., permit term to February 7, 2027
  • BENNINGTON WWTP, Troy: MO0122971, minor permit, discharging to Tributary to Spring Creek, permit term to November 30, 2023
  • BOONE ST COMMONS-PH2, Troy: MORA29711, minor permit, discharging to Tributary to Town Branch, permit term to February 7, 2027
  • BOULDERS AT MOSCOW MILLS, Moscow Mills: MORA26164, minor permit, discharging to Tributary to Cuivre R., permit term to February 7, 2027
  • CASEYS OF MOSCOW MILLS, Moscow Mills: MORA29668, minor permit, discharging to Tributary to Cuivre R., permit term to February 7, 2027
  • CHAMPION READI-MIX INC, Troy: MOG490931, minor permit, discharging to Spring Cr., permit term to October 5, 2011
  • CHERRY STREET IMPROVEMENTS, Troy: MORA22193, minor permit, discharging to Cuivre R., permit term to February 7, 2027
  • CITY OF TROY, Troy: MOL054623, minor permit, permit term to December 31, 2025
  • CITY OF TROY, Troy: MOL131296, minor permit, permit term to December 31, 2025
  • COPPER VALLEY, Moscow Mills: MORA28765, minor permit, discharging to Tributary to Cuivre R., permit term to February 7, 2027

Identity

Facility as filedELM TREE ESTATES WWTP
Permittee as filedElm Tree Estates Home Owners
NPDES IDMO0131261
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
IssuedNovember 20, 2019
Expiration dateMarch 31, 2024
AddressTroy, MO 63379
Receiving waterTributary to Whitcomb Br.
SubwatershedSpring Creek-Cuivre River (HUC 071100080403)
SIC8641 – Civic And Social Associations

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
Oxygen, dissolved [DO]01311August 31, 201240% over the limit
BOD, 5-day, 20 deg. C233September 30, 202057% over the limit
Solids, total suspended222September 30, 2019400% over the limit
Flow, in conduit or thru treatment plant260
E. coli, colony forming units [CFU]020
Nitrogen, ammonia total [as N]400
pH200
E. coli200

Inspections, violations and enforcement

DateWhat EPA recordedAgency
September 3, 2025Effluent Violations - Numeric effluent violationST6
September 30, 2020Effluent Violations - Numeric effluent violationST6
September 3, 2019Effluent Violations - Numeric effluent violationST6

Inspections

EPA’s inspection file holds no inspection for NPDES MO0131261.

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 MO0131261.

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Nearby on the register

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

What this page shows

This EPA-sourced public-records page covers Clean Water Act discharge permit NPDES MO0131261 for the ELM TREE ESTATES WWTP in Troy, MO, held by Elm Tree Estates Home Owners, with the permit shown as administratively continued and classed as a Minor Discharger. The page lists 6 pollutants under a numeric limit and 3 pollutants with an effluent exceedance, and it sits in the Spring Creek-Cuivre River subwatershed (HUC 071100080403).