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Clean Water Act discharge permit · NPDES MO0033901

CONFLUENCE RIVERS - FREEMAN HILLS WWTF, Mexico, MO: NPDES MO0033901 discharge permit, effluent exceedances, inspections, penalties

CONFLUENCE RIVERS - FREEMAN HILLS WWTF, held by Confluence Rivers Utility Operating, holds NPDES permit MO0033901, which discharges to Tributary To Brushy Branch. EPA’s file records it issued April 1, 2022 and expiring March 31, 2027. 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 filedCONFLUENCE RIVERS - FREEMAN HILLS WWTF
Permittee as filedConfluence Rivers Utility Operating
NPDES IDMO0033901
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedApril 1, 2022
Expiration dateMarch 31, 2027
AddressMexico, MO 65265
Receiving waterTributary to Brushy Branch
SubwatershedSkull Lick Creek (HUC 071100060504)
SIC8641 – Civic And Social Associations

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
Nitrogen, ammonia total [as N]81715June 30, 2023974% over the limit
E. coli2177December 31, 202299,999% over the limit
Solids, total suspended253December 31, 2018110% over the limit
pH250
BOD, 5-day, 20 deg. C220
Flow, in conduit or thru treatment plant220

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
April 21, 2023Permit Violations - Unapproved OperationST6
April 21, 2023Effluent Violations - Numeric effluent violationST6
April 21, 2023Permit Violations - Violation Specified in CommentST6
September 25, 2018Permit Violations - Violation Specified in CommentST6

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 MO0033901 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act NPDES permit MO0033901 for CONFLUENCE RIVERS - FREEMAN HILLS WWTF in Mexico, MO, held by Confluence Rivers Utility Operating, which discharges to Tributary to Brushy Branch in the Skull Lick Creek subwatershed (HUC 071100060504). The permit is listed as Effective, a minor discharger, with 6 pollutants on file, 3 under a numeric limit, and 3 with an effluent exceedance, and it was issued April 1, 2022 and expires March 31, 2027.