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Clean Water Act discharge permit · NPDES MOGD00591

SOUTHGATE SUBDIVISION WWTP, Sedalia, MO: NPDES MOGD00591 discharge permit, effluent exceedances, inspections, penalties

SOUTHGATE SUBDIVISION WWTP, held by SOUTHGATE SERVICES, INC., holds NPDES permit MOGD00591, which discharges to Tributary To Breakfast Branch. EPA’s file records it issued September 1, 2021 and expiring June 30, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedSOUTHGATE SUBDIVISION WWTP
Permittee as filedSOUTHGATE SERVICES, INC.
NPDES IDMOGD00591
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 1, 2021
Expiration dateJune 30, 2024
AddressSedalia, MO 65301
Receiving waterTributary to Breakfast Branch
SubwatershedWalnut Creek-Flat Creek (HUC 103001030301)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

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]455March 31, 20241,821% over the limit
Solids, total suspended222June 30, 202393% over the limit
E. coli222June 30, 2023531% over the limit
BOD, 5-day, 20 deg. C211June 30, 202313% over the limit
Oxygen, dissolved [DO]200
pH200
Flow, in conduit or thru treatment plant200
Chlorine, total residual200

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

DateWhat EPA recordedAgency
March 23, 2026Permit Violations - Failure to Submit Timely Permit Renewal ApplicationST6
March 23, 2026Permit Violations - Unapproved OperationST6
June 28, 2024Effluent Violations - Numeric effluent violationST6
December 29, 2023Reporting Violations - Improper/ Incorrect ReportingST6
December 29, 2023Permit Violations - Violation Specified in CommentST6
December 29, 2023Effluent Violations - Numeric effluent violationST6

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MOGD00591.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MOGD00591 there.

Nearby on the register

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