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Clean Water Act discharge permit · NPDES TX0138274

CONROE CENTRAL WWTP, Conroe, TX: NPDES TX0138274 discharge permit, effluent exceedances, inspections, penalties

CONROE CENTRAL WWTP, held by CONROE CITY OF, holds NPDES permit TX0138274, which discharges to Stewarts Crk;W Fork San Jacinto. EPA’s file records it issued January 16, 2019 and expiring January 16, 2024. 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 filedCONROE CENTRAL WWTP
Permittee as filedCONROE CITY OF
NPDES IDTX0138274
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
IssuedJanuary 16, 2019
Expiration dateJanuary 16, 2024
AddressConroe, TX 77301
Receiving waterSTEWARTS CRK;W FORK SAN JACINTO
SubwatershedStewarts Creek-West Fork San Jacinto River (HUC 120401010401)
Program components on filePOTW, Pretreatment
SIC4952 – 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

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
E. coli299April 30, 20261,422% over the limit
Solids, total suspended311January 31, 202410% over the limit
Nitrogen, ammonia total [as N]311June 30, 202460% over the limit
Flow, in conduit or thru treatment plant400
Whole effluent toxicity - retest #1300
Whole effluent toxicity - retest #2300
BOD, carbonaceous [5 day, 20 C]300
pH200
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia200
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas200
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia200
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas200
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia200
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas200
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia200
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas200
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia200
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas200
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia200
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas200
Oxygen, dissolved [DO]100
LC50 Pass/Fail Static 24Hr Acute D. Pulex100
LC50 Pass/Fail Static 24Hr Acute Pimephales promelas100

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

DateWhat EPA recordedAgency
August 10, 2022Permit Violations - Violation Specified in CommentST6

Inspections

EPA’s inspection file holds no inspection for NPDES TX0138274.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES TX0138274.

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 TX0138274 there.

Nearby on the register

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

What this page shows

The Conroe Central WWTP's NPDES permit TX0138274, held by the City of Conroe, is listed on this page as administratively continued, with a 2019 issue date and a 2024 expiration date, and it discharges to Stewarts Crk and W Fork San Jacinto. The page reports 23 as the discharger class, 3 pollutants under a numeric limit, and 3 pollutants with an effluent exceedance, with status as of October 14, 2026.