Clean Water Act discharge permit · NPDES MO0134147

JCPSD MIRASOL WWTP, Eureka, MO: NPDES MO0134147 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
11Pollutants under a numeric limit
5Pollutants with an effluent exceedance

JCPSD MIRASOL WWTP, held by Jefferson County Public Sewer District, holds NPDES permit MO0134147, which discharges to Tributary To Meramec R.. EPA’s file records it issued February 6, 2019 and expiring June 30, 2023. 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 filed	JCPSD MIRASOL WWTP
Permittee as filed	Jefferson County Public Sewer District
NPDES ID	MO0134147
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	February 6, 2019
Expiration date	June 30, 2023
Address	Eureka, MO 63025
Receiving water	Tributary to Meramec R.
Subwatershed	Fox Creek-Meramec River (HUC 071401020903)
Program components on file	Biosolids, POTW
SIC	4952 – 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

12Pollutants on file
11Under a numeric limit
12With a violation of any kind
5With an effluent exceedance

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 measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Nitrogen, ammonia total [as N]	4	22	18	May 31, 2026	2,450% over the limit
BOD, 5-day, 20 deg. C	2	14	9	March 31, 2022	327% over the limit
Solids, total suspended	2	7	2	June 30, 2009	347% over the limit
E. coli	2	6	2	April 30, 2019	616% over the limit
pH	2	5	1	November 30, 2014
E. coli, colony forming units [CFU]	0	8	0
Oil and grease [soxhlet extr.] tot.	2	4	0
Flow, in conduit or thru treatment plant	2	4	0
Nitrogen, total [as N]	2	2	0
Phosphorus, total [as P]	2	2	0
BOD, 5-day, percent removal	1	1	0
Solids, suspended percent removal	1	1	0

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

5Single-event violations

Date	What EPA recorded	Agency
December 29, 2023	Reporting Violations - Failure to Submit DMRs	ST6
November 20, 2023	Reporting Violations - Failure to Submit DMRs	ST6
March 17, 2023	Effluent Violations - Numeric effluent violation	ST6
January 11, 2023	Effluent Violations - Numeric effluent violation	ST6
June 30, 2022	Effluent Violations - Numeric effluent violation	ST6

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

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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 MO0134147 there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit MO0134147 for JCPSD MIRASOL WWTP in Eureka, MO, held by Jefferson County Public Sewer District, which discharges to Tributary To Meramec R. The permit is administratively continued, with a Minor Discharger class, 11 pollutants under a numeric limit, and 5 pollutants with an effluent exceedance. The permit's file dates are issued February 6, 2019 and expiration June 30, 2023.