Clean Water Act discharge permit · NPDES TX0105058

CITY OF HOUSTON, Houston, TX: NPDES TX0105058 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
45Pollutants under a numeric limit
4Pollutants with an effluent exceedance

CITY OF HOUSTON, held by HOUSTON, CITY OF, holds NPDES permit TX0105058, which discharges to Sims Bayou. EPA’s file records it issued April 11, 1995 and expiring May 31, 2000. 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	CITY OF HOUSTON
Permittee as filed	HOUSTON, CITY OF
NPDES ID	TX0105058
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	April 11, 1995
Expiration date	May 31, 2000
Address	Houston, TX 77087
Receiving water	SIMS BAYOU
Receiving water impaired	303(D) Listed
Subwatershed	Lower Sims Bayou (HUC 120401040502)
Other EPA IDs (FRS)	RCRA handler TXR000010090

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

45Pollutants on file
45Under a numeric limit
44With a violation of any kind
4With 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
Nitrogen, ammonia total [as N]	6	87	42	September 30, 2019	217% over the limit
Solids, total suspended	6	60	15	December 31, 2023	164% over the limit
Chlorine, total residual	2	11	6	June 30, 2006	99,999% over the limit
BOD, carbonaceous [5 day, 20 C]	6	210	2	September 30, 2019	99,999% over the limit
Solids, suspended percent removal	2	32	0
Carbonaceous oxygen demand, % removal	2	32	0
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia	2	12	0
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia	2	12	0
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia	2	12	0
Arsenic, dry weight	5	10	0
Nickel, sludge, total, dry weight [as Ni]	5	10	0
Nitrogen, Kjeldahl, total [as N]	2	8	0
Polychlorinated biphenyls [PCBs]	1	7	0
Toxicity characteristic leaching procedure	1	7	0
Selenium, dry weight	3	6	0
Copper, dry weight	3	6	0
Cadmium, dry weight	3	6	0
Molybdenum, sludge, total, dry weight [as Mo]	3	6	0
Zinc, sludge, total, dry weight [as Zn]	3	6	0
Lead, sludge, total, dry weight [as Pb]	3	6	0
Mercury, sludge, total, dry weight [as Hg]	3	6	0
pH	2	4	0
Chromium, sludge, total, dry weight [as Cr]	2	4	0
Level of pathogen requirements achieved	2	4	0
Description of pathogen option used	2	4	0
Vector attraction reduction alternative used	2	4	0
LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)	2	4	0
LC50 Pass/Fail Static 24Hr Acute Cyprinodon variegatus	2	4	0
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)	2	4	0
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	2	4	0
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	2	4	0
Oxygen, dissolved [DO]	1	2	0
Ann. amt sludge disposed by other method	1	2	0
Annual amt of sludge incinerated	1	2	0
Annual sludge production, total	1	2	0
Annual amount of sludge land applied	1	2	0
Annual amt. sludge disposed surface unit	1	2	0
Annual amt sludge disposed in landfill	1	2	0
Annual amt sludge transported interstate	1	2	0
Unit w/liner/leachate collection system	1	2	0
Unit boundary to property line distance	1	2	0
Compliance w/part 258 sludge requirement	1	2	0
Flow, in conduit or thru treatment plant	1	2	0
Pollutant table from 503.13	1	2	0
Annual whole sludge application rate	1	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

19Single-event violations

Date	What EPA recorded	Agency
September 16, 2024	Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment	EP6
May 3, 2023	Permit Violations - Violation Specified in Comment	ST6
October 7, 2022	Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment	EP6
October 2, 2022	Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment	EP6
January 18, 2022	Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment	EP6
January 11, 2022	Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment	EP6
May 18, 2021	Wet-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment	EP6
April 7, 2021	Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment	EP6
April 1, 2021	Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment	EP6
October 12, 2020	Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment	EP6
May 6, 2020	Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment	EP6
February 26, 2020	Wet-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment	EP6
January 12, 2020	Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment	EP6
November 7, 2019	Wet-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment	EP6
October 25, 2019	Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment	EP6
October 14, 2019	Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment	EP6
September 21, 2019	WW SSO - Overflow to Dry Land or Building Backup	EP6
September 19, 2019	WW SSO - Discharge to Waters	EP6
June 3, 2018	WW SSO - Discharge to Waters	EP6

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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Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit TX0105058, held by HOUSTON, CITY OF for the CITY OF HOUSTON facility, which discharges to Sims Bayou and is administratively continued as a Major discharger class permit. The page lists 45 under the class heading, 4 pollutants under a numeric limit, and 4 pollutants with an effluent exceedance, with the permit's issue and expiration dates as recorded in EPA's file.