Clean Water Act discharge permit · NPDES TXR05FF90

SOUTHWEST WWTP, Houston, TX: NPDES TXR05FF90 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
13Pollutants under a numeric limit
0Pollutants with an effluent exceedance

SOUTHWEST WWTP, held by City of Houston, holds NPDES permit TXR05FF90. EPA’s file records it issued November 10, 2021 and expiring August 13, 2026. 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.

What the register holds for SOUTHWEST WWTP: its NPDES ID, its permit type and status, its dates, its address in Houston, Texas, and 13 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR05FF90.

Identity

Facility as filed	SOUTHWEST WWTP
Permittee as filed	City of Houston
NPDES ID	TXR05FF90
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Industrial stormwater
Issued	November 10, 2021
Expiration date	August 13, 2026
Address	Houston, TX 77096
Subwatershed	Keegans Bayou-Brays Bayou (HUC 120401040401)
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

13Pollutants on file
13Under a numeric limit
0With 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	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
BOD, 5-day, 20 deg. C	4	0	0
Arsenic, total [as As]	4	0	0
Barium, total [as Ba]	4	0	0
Cadmium, total [as Cd]	4	0	0
Chromium, total [as Cr]	4	0	0
Copper, total [as Cu]	4	0	0
Lead, total [as Pb]	4	0	0
Manganese, total [as Mn]	4	0	0
Nickel, total [as Ni]	4	0	0
Silver, total [as Ag]	4	0	0
Zinc, total [as Zn]	4	0	0
Selenium, total [as Se]	4	0	0
Mercury, total [as Hg]	4	0	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TXR05FF90.

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 TXR05FF90.

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.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, TXR05FF90.

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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 TXR05FF90 there.

Nearby on the register

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

This public-records page covers the Clean Water Act NPDES discharge permit TXR05FF90 for SOUTHWEST WWTP in Houston, TX, held by City of Houston, with an administratively continued status, a minor discharger class, and 13 pollutants under a numeric limit. The register lists 0 pollutants with an effluent exceedance, and the permit's recorded issuance date of November 10, 2021 and expiration date of August 13, 2026 reflect EPA's permit file as loaded on October 14, 2026.