Clean Water Act discharge permit · NPDES MO0121134

OAK BRANCH TRAILER PARK WWTP, Warsaw, MO: NPDES MO0121134 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
8Pollutants under a numeric limit
5Pollutants with an effluent exceedance

OAK BRANCH TRAILER PARK WWTP, held by Oak Branch Homeowners Association, holds NPDES permit MO0121134, which discharges to Lake Of The Ozarks. EPA’s file records it issued September 19, 2016 and expiring September 30, 2021. 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	OAK BRANCH TRAILER PARK WWTP
Permittee as filed	Oak Branch Homeowners Association
NPDES ID	MO0121134
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	September 19, 2016
Expiration date	September 30, 2021
Issuing agency	MODNR-Water Protection Program
Address	Warsaw, MO 65355
Receiving water	Lake of the Ozarks
Subwatershed	Feaster Branch-Osage River (HUC 102901090107)
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

9Pollutants on file
8Under a numeric limit
9With 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
Chlorine, total residual	4	30	28	December 31, 2019	27,400% over the limit
E. coli	4	5	3	December 31, 2020	99,999% over the limit
Nitrogen, ammonia total [as N]	6	4	2	September 30, 2018	248% over the limit
E. coli, colony forming units [CFU]	0	2	2	April 30, 2013	730% over the limit
pH	2	3	1	September 30, 2010
Oxygen, dissolved [DO]	4	2	0
BOD, 5-day, 20 deg. C	2	2	0
Solids, total suspended	2	2	0
Flow, in conduit or thru treatment plant	2	2	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MO0121134.

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 MO0121134 there.

Nearby on the register

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

This public-records page covers NPDES permit MO0121134 for the OAK BRANCH TRAILER PARK WWTP in Warsaw, MO, held by Oak Branch Homeowners Association, with a permit status of Effective and a Minor discharger class. The facts list 8 pollutants under a numeric limit, 5 pollutants with an effluent exceedance, and 9 pollutants on file, and the receiving water is Lake of the Ozarks within the Feaster Branch-Osage River subwatershed (HUC 102901090107).