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Clean Water Act discharge permit · NPDES TX0132101

HIDALGO COUNTY MUD 1 WWTP, Penitas, TX: NPDES TX0132101 discharge permit, effluent exceedances, inspections, penalties

HIDALGO COUNTY MUD 1 WWTP, held by HIDALGO COUNTY MUD 1, holds NPDES permit TX0132101, which discharges to Laguna Madre. EPA’s file records it issued November 20, 2020 and expiring November 20, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedHIDALGO COUNTY MUD 1 WWTP
Permittee as filedHIDALGO COUNTY MUD 1
NPDES IDTX0132101
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
IssuedNovember 20, 2020
Expiration dateNovember 20, 2025
AddressPenitas, TX 78576
Receiving waterLaguna Madre
SubwatershedLake Edinburn-Edinburg North Main Canal (HUC 121102080200)

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
Solids, total suspended3360
Nitrogen, ammonia total [as N]3360
BOD, carbonaceous [5 day, 20 C]3360
pH2260
Flow, in conduit or thru treatment plant2240
Chlorine, total residual2240
E. coli2240
Oxygen, dissolved [DO]1120
Arsenic, dry weight0100
Chromium, sludge, total, dry weight [as Cr]0100
Selenium, dry weight060
Copper, dry weight060
Cadmium, dry weight060
Molybdenum, sludge, total, dry weight [as Mo]060
Zinc, sludge, total, dry weight [as Zn]060
Lead, sludge, total, dry weight [as Pb]060
Nickel, sludge, total, dry weight [as Ni]060
Mercury, sludge, total, dry weight [as Hg]060
Nickel, total [as Ni]040
Level of pathogen requirements achieved040
Description of pathogen option used040
Vector attraction reduction alternative used040
Polychlorinated biphenyls [PCBs]030
Ann. amt sludge disposed by other method030
Annual sludge production, total030
Annual amount of sludge land applied030
Annual amt sludge disposed in landfill030
Compliance w/part 258 sludge requirement030
Fecal coliform020
Toxicity characteristic leaching procedure020
Annual amt of sludge incinerated020
Annual amt. sludge disposed surface unit020
Annual amt sludge transported interstate020
Unit w/liner/leachate collection system020
Boundary areas020
Salmonella020
Pollutant table from 503.13020

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TX0132101.

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
January 8, 2026Permit Violations - Violation Specified in CommentST6
January 16, 2020Permit Violations - Violation Specified in CommentST6

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, TX0132101.

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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 TX0132101 there.

Nearby on the register

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