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Clean Water Act discharge permit · NPDES TX0138860

EAST MONTGOMERY COUNTY MUD NO 12 WWTP, Splendora, TX: NPDES TX0138860 discharge permit, effluent exceedances, inspections, penalties

EAST MONTGOMERY COUNTY MUD NO 12 WWTP, held by EAST MONTGOMERY COUNTY MUD NO 12, holds NPDES permit TX0138860, which discharges to Polishing Poind. EPA’s file records it issued March 17, 2020 and expiring March 17, 2025. 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 filedEAST MONTGOMERY COUNTY MUD NO 12 WWTP
Permittee as filedEAST MONTGOMERY COUNTY MUD NO 12
NPDES IDTX0138860
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedMarch 17, 2020
Expiration dateMarch 17, 2025
AddressSplendora, TX 77372
Receiving waterPOLISHING POIND
SubwatershedWest Fork Spring Branch-Spring Branch (HUC 120401030103)

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

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH242January 31, 2024
Solids, total suspended641August 31, 20226% over the limit
E. coli231August 31, 2024675% over the limit
Nitrogen, ammonia total [as N]630
BOD, carbonaceous [5 day, 20 C]630
Flow, in conduit or thru treatment plant420
Chlorine, total residual220
Oxygen, dissolved [DO]110

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0138860.

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 TX0138860 there.

Nearby on the register

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

What this page shows

This public-records page covers the Clean Water Act discharge permit NPDES TX0138860 for the EAST MONTGOMERY COUNTY MUD NO 12 WWTP in Splendora, TX, which is administratively continued and classed as a Minor Discharger. The facts list 8 as the discharger class figure, 3 pollutants under a numeric limit, and 3 pollutants with an effluent exceedance. The permit covers the West Fork Spring Branch-Spring Branch subwatershed (HUC 120401030103), with discharge to POLISHING POIND.