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Clean Water Act discharge permit · NPDES TX0020117

EAST DISTRICT WWTP, Baytown, TX: NPDES TX0020117 discharge permit, effluent exceedances, inspections, penalties

EAST DISTRICT WWTP, held by CITY OF BAYTOWN, holds NPDES permit TX0020117, which discharges to Trinity-San Jacinto Coa. EPA’s file records it issued November 6, 2018 and expiring November 6, 2023. 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 DISTRICT WWTP
Permittee as filedCITY OF BAYTOWN
NPDES IDTX0020117
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedNovember 6, 2018
Expiration dateNovember 6, 2023
AddressBaytown, TX 77520
Receiving waterTRINITY-SAN JACINTO COA
Receiving water impaired303(D) Listed
SubwatershedCedar Point Lateral-Cedar Bayou (HUC 120402030106)
Other EPA IDs (FRS)RCRA handler TXT490013802

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

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
Copper, total [as Cu]61818October 31, 2025420% over the limit
Chlorine, total residual255December 31, 2011425% over the limit
Enterococci222October 31, 2014116% over the limit
Arsenic, dry weight550
Chromium, sludge, total, dry weight [as Cr]550
BOD, 5-day, 20 deg. C330
Selenium, dry weight330
Copper, dry weight330
Cadmium, dry weight330
Molybdenum, sludge, total, dry weight [as Mo]330
Zinc, sludge, total, dry weight [as Zn]330
Lead, sludge, total, dry weight [as Pb]330
Nickel, sludge, total, dry weight [as Ni]330
Mercury, sludge, total, dry weight [as Hg]330
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)420
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia420
Solids, total suspended320
Nickel, total [as Ni]220
Level of pathogen requirements achieved220
Description of pathogen option used220
Vector attraction reduction alternative used220
pH310
Fecal coliform110
Unit w/liner/leachate collection system110
Boundary areas110
Salmonella110
Pollutant table from 503.13110
LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)110
LC50 Pass/Fail Static 24Hr Acute Menidia menidia110
Whole effluent toxicity - retest #1700
Whole effluent toxicity - retest #2700
Flow, in conduit or thru treatment plant400
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia400
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)400
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia400
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)400
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia400
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)400
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)400
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia400
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)400
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia400
Oxygen, dissolved [DO]100
Polychlorinated biphenyls [PCBs]100
Toxicity characteristic leaching procedure100
Annual whole sludge application rate100
Ann. amt sludge disposed by other method100
Annual amt of sludge incinerated100
Annual sludge production, total100
Annual amount of sludge land applied100
Annual amt. sludge disposed surface unit100
Annual amt sludge disposed in landfill100
Annual amt sludge transported interstate100
Compliance w/part 258 sludge requirement100

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
March 19, 2025Permit Violations - Violation Specified in CommentST6
November 7, 2022Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangermentEP6
September 23, 2022Permit Violations - Violation Specified in CommentST6
September 14, 2022Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
October 31, 2020Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
September 14, 2020Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangermentEP6
April 29, 2020Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
January 5, 2017Permit Violations - Violation Specified in CommentST6
January 2, 2017Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangermentEP6

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 TX0020117 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 NPDES permit TX0020117 for the EAST DISTRICT WWTP in Baytown, TX, held by CITY OF BAYTOWN, which discharges to the Trinity-San Jacinto Coa receiving water in the Cedar Point Lateral-Cedar Bayou subwatershed (HUC 120402030106). The permit is listed as a Major Discharger, administratively continued, with 3 pollutants under a numeric limit and 3 pollutants with an effluent exceedance.