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Clean Water Act discharge permit · NPDES MO0032883

MARSHALL SE WWTP, Marshall, MO: NPDES MO0032883 discharge permit, effluent exceedances, inspections, penalties

MARSHALL SE WWTP, held by Marshall Municipal Utilities, holds NPDES permit MO0032883, which discharges to Salt Fk.. EPA’s file records it issued July 19, 2017 and expiring March 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedMARSHALL SE WWTP
Permittee as filedMarshall Municipal Utilities
NPDES IDMO0032883
Permit statusEffective
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedJuly 19, 2017
Expiration dateMarch 31, 2022
AddressMarshall, MO 65340
Receiving waterSalt Fk.
SubwatershedDicks Branch-Salt Fork (HUC 103001040410)
Program components on fileBiosolids, POTW, Pretreatment
SIC4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same 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
Coliform, fecal general0117June 30, 2012435% over the limit
Oxygen, dissolved [DO]0660
BOD, 5-day, 20 deg. C4270
Solids, total suspended2270
Nitrogen, total [as N]4240
Phosphorus, total [as P]4240
pH240
E. coli, colony forming units [CFU]040
Pass/Fail Static 48Hr Acute Ceriodaphnia dubia040
LC50 Static 48Hr Acute Pimephales promelas040
Oil and grease [soxhlet extr.] tot.220
Nitrogen, ammonia total [as N]220
Flow, in conduit or thru treatment plant220
E. coli220
Thallium, total recoverable020
Beryllium, total recoverable [as Be]020
Cadmium, total recoverable020
Lead, total recoverable020
Application rate, gallons spray irrigation020
Toxicity [acute], Ceriodaphnia dubia210
Toxicity [acute], Pimephales promelas [Fathead Minnow]210
BOD, 5-day, percent removal110
Solids, suspended percent removal110
Toxicity [chronic], Ceriodaphnia dubia010
Toxicity [chronic], Pimephales promelas [Fathead Minnow]010

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
September 3, 2021Reporting Violations - Improper/ Incorrect ReportingST6
September 3, 2021Permit Violations - Violation Specified in CommentST6
April 24, 2019Reporting Violations - Improper/ Incorrect ReportingST6
April 24, 2019Permit Violations - Violation Specified in CommentST6
April 24, 2019Pretreatment - Failure to Develop/Enforce StandardsST6
May 22, 2017Pretreatment - Failure to Develop/Enforce StandardsST6

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.

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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 MO0032883 there.

Nearby on the register

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

What this page shows

The page is a public-records entry for NPDES permit MO0032883, held by Marshall Municipal Utilities for the MARSHALL SE WWTP in Marshall, MO, and discharging to Salt Fk. It lists the permit as Effective and a Major discharger, with an issue date of July 19, 2017 and an expiration date of March 31, 2022, as stood in EPA's file when the record was loaded on October 14, 2026. The page reports 25 pollutants on file, 13 of them under a numeric limit, and 25 with a violation.