Clean Water Act discharge permit · NPDES MO0106577

JCPSD, SENNAWOOD VILLAGE WWTP, Cedar Hill, MO: NPDES MO0106577 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
10Pollutants under a numeric limit
6Pollutants with an effluent exceedance

JCPSD, SENNAWOOD VILLAGE WWTP, held by Jefferson County Public Sewer District, holds NPDES permit MO0106577, which discharges to Isum Creek. EPA’s file records it issued August 1, 2022 and expiring July 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 filed	JCPSD, SENNAWOOD VILLAGE WWTP
Permittee as filed	Jefferson County Public Sewer District
NPDES ID	MO0106577
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Publicly owned treatment works
Issued	August 1, 2022
Expiration date	July 31, 2027
Address	Cedar Hill, MO 63016
Receiving water	Isum Creek
Subwatershed	Big River (HUC 071401040407)
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

11Pollutants on file
10Under a numeric limit
7With a violation of any kind
6With 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
BOD, 5-day, 20 deg. C	3	92	88	May 31, 2026	370% over the limit
E. coli	2	45	41	May 31, 2026	1,821% over the limit
Solids, total suspended	3	37	33	January 31, 2026	680% over the limit
Nitrogen, ammonia total [as N]	18	19	15	February 28, 2026	900% over the limit
Coliform, fecal general	0	15	8	June 30, 2017	60% over the limit
pH	2	5	1	January 31, 2020
Flow, in conduit or thru treatment plant	2	4	0
Oxygen, dissolved [DO]	2	0	0
Chlorine, total residual	2	0	0
BOD, 5-day, percent removal	1	0	0
Solids, suspended percent removal	1	0	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

7Single-event violations

Date	What EPA recorded	Agency
March 28, 2022	Effluent Violations - Numeric effluent violation	ST6
March 28, 2022	Effluent Violations - Narrative Effluent Violation	ST6
July 6, 2018	Permit Violations - Violation Specified in Comment	ST6
July 6, 2018	Effluent Violations - Narrative Effluent Violation	ST6
July 6, 2018	Management Practice Violations - Improper Operation and Maintenance	ST6
July 6, 2018	Effluent Violations - Numeric effluent violation	ST6
July 6, 2017	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 MO0106577 there.

Nearby on the register

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

This public-records page covers NPDES permit MO0106577, held by Jefferson County Public Sewer District for the JCPSD, SENNAWOOD VILLAGE WWTP in Cedar Hill, MO, which discharges to Isum Creek in the Big River subwatershed (HUC 071401040407). The permit is listed as Effective, a Minor discharger, issued August 1, 2022 and expiring July 31, 2027, with 10 pollutants under a numeric limit and 6 showing an effluent exceedance. The page also lists 11 pollutants on file and 10 under a numeric limit.