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Clean Water Act discharge permit · NPDES MO0087921

KINGSTON K-14 SCHOOL WWTP, Cadet, MO: NPDES MO0087921 discharge permit, effluent exceedances, inspections, penalties

KINGSTON K-14 SCHOOL WWTP, held by Kingston K-14 School District, holds NPDES permit MO0087921, which discharges to Old Mines Cr.. EPA’s file records it issued June 11, 2018 and expiring December 31, 2022.

KINGSTON K-14 SCHOOL WWTP, Cadet, Missouri: Individual permit MO0087921, held by Kingston K-14 School District; Administratively continued (past its expiration date and still in force until reissued); issued June 11, 2018, term to December 31, 2022; discharges to Old Mines Cr..

  • Nitrogen, ammonia total [as N]: 6 limits, 64 violations of any kind, 42 effluent exceedances, latest March 31, 2025, largest 3,285% over the limit.
  • E. coli: 4 limits, 30 violations of any kind, 18 effluent exceedances, latest June 30, 2026, largest 3,233% over the limit.
  • BOD, 5-day, 20 deg. C: 4 limits, 48 violations of any kind, 16 effluent exceedances, latest June 30, 2023, largest 590% over the limit.
  • Ammonia [as N] + unionized ammonia: 0 limits, 9 violations of any kind, 9 effluent exceedances, latest June 30, 2017, largest 288% over the limit.
  • BOD, 5-day, percent removal: 2 limits, 18 violations of any kind, 5 effluent exceedances, latest June 30, 2026, largest 347% over the limit.
  • Solids, suspended percent removal: 2 limits, 18 violations of any kind, 5 effluent exceedances, latest June 30, 2026, largest 562% over the limit.
  • Solids, total suspended: 4 limits, 36 violations of any kind, 4 effluent exceedances, latest March 31, 2024, largest 50% over the limit.
  • E. coli, colony forming units [CFU]: 0 limits, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2017, largest 31,646% over the limit.
  • pH: 4 limits, 25 violations of any kind, 1 effluent exceedance, latest March 31, 2024.
  • Flow, in conduit or thru treatment plant: 4 limits, 23 violations of any kind, 0 effluent exceedances.
  • Oxygen, dissolved [DO]: 0 limits, 12 violations of any kind, 0 effluent exceedances.
  • Chlorine, total residual: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Coliform, fecal general: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • December 10, 2025: Effluent Violations - Numeric effluent violation (ST6).
  • September 11, 2025: Reporting Violations - Improper/ Incorrect Reporting (ST6).
  • May 7, 2025: Effluent Violations - Numeric effluent violation (ST6).
  • March 31, 2025: Effluent Violations - Numeric effluent violation (ST6).
  • March 29, 2024: Effluent Violations - Numeric effluent violation (ST6).
  • January 26, 2024: Effluent Violations - Numeric effluent violation (ST6).
  • April 5, 2023: Effluent Violations - Numeric effluent violation (ST6).
  • December 27, 2022: Effluent Violations - Numeric effluent violation (ST6).
  • April 26, 2021: Management Practice Violations - Improper Operation and Maintenance (ST6).
  • April 26, 2021: Effluent Violations - Numeric effluent violation (ST6).

KINGSTON K-14 SCHOOL WWTP among its neighbors

EPA’s permit file holds 2 discharge permits in the Old Mines Creek subwatershed (HUC 071401040205), MO0087921 among them. Its county holds 64, 1 of them major permits; MO0087921 is a minor permit.

Other permits in the Old Mines Creek subwatershed (HUC 071401040205)

Identity

Facility as filedKINGSTON K-14 SCHOOL WWTP
Permittee as filedKingston K-14 School District
NPDES IDMO0087921
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
IssuedJune 11, 2018
Expiration dateDecember 31, 2022
AddressCadet, MO 63630
Receiving waterOld Mines Cr.
SubwatershedOld Mines Creek (HUC 071401040205)
SIC8211 – Elementary And Secondary Schools

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
Nitrogen, ammonia total [as N]66442March 31, 20253,285% over the limit
E. coli43018June 30, 20263,233% over the limit
BOD, 5-day, 20 deg. C44816June 30, 2023590% over the limit
Ammonia [as N] + unionized ammonia099June 30, 2017288% over the limit
BOD, 5-day, percent removal2185June 30, 2026347% over the limit
Solids, suspended percent removal2185June 30, 2026562% over the limit
Solids, total suspended4364March 31, 202450% over the limit
E. coli, colony forming units [CFU]044June 30, 201731,646% over the limit
pH4251March 31, 2024
Flow, in conduit or thru treatment plant4230
Oxygen, dissolved [DO]0120
Chlorine, total residual020
Coliform, fecal general020

Inspections, violations and enforcement

DateWhat EPA recordedAgency
December 10, 2025Effluent Violations - Numeric effluent violationST6
September 11, 2025Reporting Violations - Improper/ Incorrect ReportingST6
May 7, 2025Effluent Violations - Numeric effluent violationST6
March 31, 2025Effluent Violations - Numeric effluent violationST6
March 29, 2024Effluent Violations - Numeric effluent violationST6
January 26, 2024Effluent Violations - Numeric effluent violationST6
April 5, 2023Effluent Violations - Numeric effluent violationST6
December 27, 2022Effluent Violations - Numeric effluent violationST6
April 26, 2021Management Practice Violations - Improper Operation and MaintenanceST6
April 26, 2021Effluent Violations - Numeric effluent violationST6

Inspections

EPA’s inspection file holds no inspection for NPDES MO0087921.

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 MO0087921.

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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 NPDES permit MO0087921, held by Kingston K-14 School District for the KINGSTON K-14 SCHOOL WWTP in Cadet, MO, which discharges to Old Mines Cr. The permit is listed as administratively continued, with 8 as its discharger class, 9 pollutants under a numeric limit, and 9 pollutants with an effluent exceedance.