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Clean Water Act discharge permit · NPDES MO0023051

ST JOSEPH ROSECRANS MEM. AIRPORT WWTF, St Joseph, MO: NPDES MO0023051 discharge permit, effluent exceedances, inspections, penalties

ST JOSEPH ROSECRANS MEM. AIRPORT WWTF, held by City of St. Joseph, holds NPDES permit MO0023051, which discharges to Browning Lake. EPA’s file records it issued November 14, 2018 and expiring March 31, 2023.

ST JOSEPH ROSECRANS MEM. AIRPORT WWTF, St Joseph, Missouri: Individual permit MO0023051, held by City of St. Joseph; Publicly owned treatment works; Effective; issued November 14, 2018, term to March 31, 2023; discharges to Browning Lake.

  • Nitrogen, ammonia total [as N]: 6 limits, 7 violations of any kind, 7 effluent exceedances, latest June 30, 2026, largest 552% over the limit.
  • E. coli: 2 limits, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2026, largest 99,999% over the limit.
  • pH: 2 limits, 52 violations of any kind, 3 effluent exceedances, latest June 30, 2026.
  • Solids, total suspended: 4 limits, 3 violations of any kind, 3 effluent exceedances, latest December 31, 2022, largest 9,470% over the limit.
  • Chlorine, total residual: 2 limits, 2 violations of any kind, 2 effluent exceedances, latest September 30, 2020, largest 12,650% over the limit.
  • Solids, suspended percent removal: 1 limit, 2 violations of any kind, 2 effluent exceedances, latest December 31, 2022, largest 186% over the limit.
  • Oil and grease [soxhlet extr.] tot.: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest May 31, 2008, largest 524% over the limit.
  • BOD, 5-day, percent removal: 1 limit, 2 violations of any kind, 1 effluent exceedance, latest June 30, 2019, largest 186% over the limit.
  • BOD, 5-day, 20 deg. C: 4 limits, 1 violation of any kind, 1 effluent exceedance, latest May 31, 2008, largest 44% over the limit.
  • Flow, in conduit or thru treatment plant: 2 limits, 2 violations of any kind, 0 effluent exceedances.
  • April 23, 2026: Evaluation (S).
  • June 24, 2024: Effluent Violations - Numeric effluent violation (ST6).
  • March 2, 2020: Permit Violations - Violation Specified in Comment (ST6).

Missouri holds 756 Publicly owned treatment works coverages of this permit type in EPA’s file; 481 were issued before MO0023051. City of St. Joseph holds 8 permits in Missouri.

Other permits held by City of St. Joseph

Coverages issued nearest MO0023051

ST JOSEPH ROSECRANS MEM. AIRPORT WWTF among its neighbors

EPA’s permit file holds 11 discharge permits in the French Bottom subwatershed (HUC 102400110104), MO0023051 among them. Its county holds 164, 2 of them major permits; MO0023051 is a minor permit.

Other permits in the French Bottom subwatershed (HUC 102400110104)

Identity

Facility as filedST JOSEPH ROSECRANS MEM. AIRPORT WWTF
Permittee as filedCity of St. Joseph
NPDES IDMO0023051
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedNovember 14, 2018
Expiration dateMarch 31, 2023
AddressSt Joseph, MO 64503
Receiving waterBrowning Lake
SubwatershedFrench Bottom (HUC 102400110104)
Program components on filePOTW, Pretreatment
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
Nitrogen, ammonia total [as N]677June 30, 2026552% over the limit
E. coli244June 30, 202699,999% over the limit
pH2523June 30, 2026
Solids, total suspended433December 31, 20229,470% over the limit
Chlorine, total residual222September 30, 202012,650% over the limit
Solids, suspended percent removal122December 31, 2022186% over the limit
Oil and grease [soxhlet extr.] tot.022May 31, 2008524% over the limit
BOD, 5-day, percent removal121June 30, 2019186% over the limit
BOD, 5-day, 20 deg. C411May 31, 200844% over the limit
Flow, in conduit or thru treatment plant220

Inspections, violations and enforcement

DateWhat EPA recordedAgency
June 24, 2024Effluent Violations - Numeric effluent violationST6
March 2, 2020Permit Violations - Violation Specified in CommentST6

Inspections

DateWhat EPA recordedAgency
April 23, 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 MO0023051.

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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 NPDES permit MO0023051 for the ST JOSEPH ROSECRANS MEM. AIRPORT WWTF in St Joseph, MO, held by City of St. Joseph, which discharges to Browning Lake in the French Bottom subwatershed (HUC 102400110104). The permit is listed as Effective with a Minor Discharger class, issued November 14, 2018 and expiring March 31, 2023, and the page shows 9 pollutants under a numeric limit and 9 pollutants with an effluent exceedance.