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Clean Water Act discharge permit · NPDES MO0040801

CURRYVILLE WWTF, Curryville, MO: NPDES MO0040801 discharge permit, effluent exceedances, inspections, penalties

CURRYVILLE WWTF, held by City of Curryville, holds NPDES permit MO0040801, which discharges to Tributary To South Spencer Creek. EPA’s file records it issued May 3, 2017 and expiring March 31, 2021. 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 filedCURRYVILLE WWTF
Permittee as filedCity of Curryville
NPDES IDMO0040801
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedMay 3, 2017
Expiration dateMarch 31, 2021
AddressCurryville, MO 63339
Receiving waterTributary to South Spencer Creek
SubwatershedSouth Spencer Creek (HUC 071100070203)

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
Solids, total suspended24843May 31, 2026938% over the limit
Nitrogen, ammonia total [as N]42824March 31, 20251,136% over the limit
Solids, suspended percent removal12422May 31, 2026186% over the limit
BOD, 5-day, percent removal12018May 31, 2026186% over the limit
BOD, 5-day, 20 deg. C21814February 28, 2026479% over the limit
Oil and grease [soxhlet extr.] tot.21511March 31, 20262,290% over the limit
E. coli2139June 30, 20261,074% over the limit
pH1390
Flow, in conduit or thru treatment plant240
Toxicity [acute], Ceriodaphnia dubia120
Toxicity [acute], Pimephales promelas [Fathead Minnow]120

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
June 12, 2026Effluent Violations - Numeric effluent violationST6
December 16, 2025Effluent Violations - Numeric effluent violationST6
December 16, 2025Reporting Violations - Improper/ Incorrect ReportingST6
September 29, 2023Reporting Violations - Improper/ Incorrect ReportingST6
September 29, 2023Effluent Violations - Numeric effluent violationST6
July 5, 2023Effluent Violations - Numeric effluent violationST6
July 5, 2023Management Practice Violations - Improper Operation and MaintenanceST6
June 17, 2021Effluent Violations - Numeric effluent violationST6
March 19, 2021Effluent Violations - Numeric effluent violationST6
April 2, 2020Effluent Violations - Numeric effluent violationST6
July 9, 2019Reporting Violations - Improper/ Incorrect ReportingST6
August 17, 2018Effluent Violations - Numeric effluent violationST6
August 17, 2018Permit Violations - Violation Specified in CommentST6
August 17, 2018Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)ST6
August 17, 2018Reporting Violations - Improper/ Incorrect ReportingST6
December 29, 2017Effluent Violations - Numeric effluent violationST6
December 29, 2017Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)ST6
December 29, 2017Permit 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 MO0040801 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit MO0040801 for the CURRYVILLE WWTF, a publicly owned treatment works in Curryville, MO, held by City of Curryville and discharging to Tributary to South Spencer Creek in the South Spencer Creek subwatershed (HUC 071100070203). The permit is listed as a minor discharger class and administratively continued, with 11 pollutants on file, 11 under a numeric limit, 11 with a violation of any kind, and 7 with an effluent exceedance.