Clean Water Act discharge permit · NPDES MO0115223

SEVEN SPRINGS WWTF, Eureka, MO: NPDES MO0115223 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
6Pollutants under a numeric limit
1Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

SEVEN SPRINGS WWTF, held by TUK, LLC, holds NPDES permit MO0115223, which discharges to Tributary To Big R.. EPA’s file records it issued July 1, 2018 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	SEVEN SPRINGS WWTF
Permittee as filed	TUK, LLC
NPDES ID	MO0115223
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	July 1, 2018
Expiration date	June 30, 2023
Address	Eureka, MO 63025
Receiving water	Tributary to Big R.
Subwatershed	Big River (HUC 071401040407)
SIC	6515 – Mobile Home Site Operators

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

8Pollutants on file
6Under a numeric limit
8With a violation of any kind
1With 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
Solids, total suspended	2	51	3	December 31, 2011	61% over the limit
pH	1	69	0
BOD, 5-day, 20 deg. C	2	48	0
Flow, in conduit or thru treatment plant	2	48	0
Nitrogen, ammonia total [as N]	2	44	0
E. coli	2	20	0
E. coli, colony forming units [CFU]	0	8	0
Coliform, fecal general	0	6	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

6Single-event violations

Date	What EPA recorded	Agency
January 9, 2023	Reporting Violations - Failure to Submit DMRs	ST6
April 1, 2022	Reporting Violations - Failure to Submit DMRs	ST6
October 15, 2021	Reporting Violations - Failure to Submit DMRs	ST6
July 3, 2019	Reporting Violations - Improper/ Incorrect Reporting	ST6
July 3, 2019	Reporting Violations - Failure to Submit DMRs	ST6
June 29, 2018	Reporting Violations - Improper/ Incorrect Reporting	ST6

Inspections

EPA’s inspection file holds no inspection for NPDES MO0115223.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MO0115223.

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 MO0115223 there.

Nearby on the register

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

This public-records page covers the Clean Water Act discharge permit NPDES MO0115223 for the SEVEN SPRINGS WWTF in Eureka, MO, held by TUK, LLC, which discharges to Tributary To Big R. The permit is listed as Effective with a Minor Discharger class, 8 pollutants on file, 6 under a numeric limit, and 1 with an effluent exceedance.