Clean Water Act discharge permit · NPDES MO0043770

WINDMILL COMMERCIAL COMPLEX WWTP, Stanton, MO: NPDES MO0043770 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
6Pollutants under a numeric limit
0Pollutants with an effluent exceedance

WINDMILL COMMERCIAL COMPLEX WWTP, held by Meramec Caverns Enterprises, Inc., holds NPDES permit MO0043770, which discharges to Tributary To Meramec River. EPA’s file records it issued February 23, 2017 and expiring December 31, 2019. 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	WINDMILL COMMERCIAL COMPLEX WWTP
Permittee as filed	Meramec Caverns Enterprises, Inc.
NPDES ID	MO0043770
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	February 23, 2017
Expiration date	December 31, 2019
Address	Stanton, MO 63080
Receiving water	Tributary to Meramec River
Subwatershed	Spring Creek (HUC 071401030402)
SIC	6512 – Nonresidential Building 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

6Pollutants on file
6Under a numeric limit
6With a violation of any kind
0With 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
Flow, in conduit or thru treatment plant	2	10
Nitrogen, ammonia total [as N]	4	6
BOD, 5-day, 20 deg. C	2	6
pH	2	6
Solids, total suspended	2	6
E. coli	2	6

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MO0043770.

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

3Single-event violations

Date	What EPA recorded	Agency
April 13, 2026	Reporting Violations - Failure to Submit DMRs	ST6
April 13, 2026	Reporting Violations - Improper/ Incorrect Reporting	ST6
July 9, 2021	Management Practice Violations - Improper Operation and Maintenance	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.

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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 MO0043770 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES MO0043770 for the WINDMILL COMMERCIAL COMPLEX WWTP in Stanton, MO, held by Meramec Caverns Enterprises, Inc., with a status of administratively continued and a discharger class of 6. The figures listed are 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, with the permit issued February 23, 2017 and expiring December 31, 2019, as recorded in EPA's permit file as of October 14, 2026.