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Clean Water Act discharge permit · NPDES MO0055956

MPC 1002 WWTF, Fredericktown, MO: NPDES MO0055956 discharge permit, effluent exceedances, inspections, penalties

MPC 1002 WWTF, held by RC Stores, Inc., holds NPDES permit MO0055956, which discharges to Tributary To Twelvemile Creek. EPA’s file records it issued May 23, 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 filedMPC 1002 WWTF
Permittee as filedRC Stores, Inc.
NPDES IDMO0055956
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMay 23, 2022
Expiration dateMarch 31, 2027
AddressFredericktown, MO 63645
Receiving waterTributary to Twelvemile Creek
SubwatershedHeadwaters Twelvemile Creek (HUC 080202020403)
SIC8811 – Private Households

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]102410June 30, 2026715% over the limit
E. coli255June 30, 202699,999% over the limit
Oil and grease [soxhlet extr.] tot.264December 31, 202499,999% over the limit
Solids, total suspended242June 30, 202636% over the limit
pH231September 30, 2024
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
December 16, 2025Effluent Violations - Numeric effluent violationST6
December 10, 2025Effluent Violations - Numeric effluent violationST6
March 31, 2025Effluent Violations - Numeric effluent violationST6
December 30, 2024Effluent Violations - Numeric effluent violationST6
August 27, 2024Effluent Violations - Numeric effluent violationST6
June 28, 2024Effluent Violations - Numeric effluent violationST6
March 29, 2024Effluent Violations - Numeric effluent violationST6
February 8, 2024Effluent Violations - Numeric effluent violationST6
February 8, 2024Permit Violations - Violation Specified in CommentST6
December 5, 2019Reporting Violations - Improper/ Incorrect ReportingST6

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 MO0055956 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 the Clean Water Act discharge permit NPDES MO0055956, held by RC Stores, Inc. for MPC 1002 WWTF in Fredericktown, MO, which discharges to Tributary to Twelvemile Creek in the Headwaters Twelvemile Creek subwatershed (HUC 080202020403). The page lists 7 pollutants on file, 7 under a numeric limit, 7 with a violation of any kind, and 5 with an effluent exceedance.