Clean Water Act discharge permit · NPDES MO0123013

BIG ISLAND SEWER COMPANY WWTP, Roach, MO: NPDES MO0123013 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
2Pollutants with an effluent exceedance

BIG ISLAND SEWER COMPANY WWTP, held by Big Island Sewer Company, holds NPDES permit MO0123013, which discharges to Lake Of The Ozarks. EPA’s file records it issued September 30, 2015 and expiring March 31, 2019. 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 filed	BIG ISLAND SEWER COMPANY WWTP
Permittee as filed	Big Island Sewer Company
NPDES ID	MO0123013
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	September 30, 2015
Expiration date	March 31, 2019
Issuing agency	MODNR-Water Protection Program
Address	Roach, MO 65787
Receiving water	Lake of the Ozarks
Receiving water impaired	303(D) Listed
Subwatershed	Eadsons Spring-Lake of the Ozarks (HUC 102901100308)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

10Pollutants on file
8Under a numeric limit
7With a violation of any kind
2With 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	2	2	April 30, 2008	6,532% over the limit
Ammonia [as N] + unionized ammonia	0	7	1	August 31, 2009	41% over the limit
BOD, 5-day, 20 deg. C	2	4	0
pH	2	4	0
Solids, total suspended	2	4	0
Flow, in conduit or thru treatment plant	2	2	0
Temperature, water deg. centigrade	0	2	0
Oxygen, dissolved [DO]	4	0	0
Nitrogen, ammonia total [as N]	4	0	0
E. coli	4	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MO0123013.

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 MO0123013 there.

Nearby on the register

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

This public-records page covers NPDES permit MO0123013 for the BIG ISLAND SEWER COMPANY WWTP in Roach, MO, held by Big Island Sewer Company and discharging to Lake of the Ozarks. The permit is listed as a Minor Discharger class with a status of administratively continued, and the record shows 2 pollutants under a numeric limit and 2 pollutants with an effluent exceedance. The file records the permit as issued September 30, 2015 and expiring March 31, 2019.