Clean Water Act discharge permit · NPDES TX0137341

NAWSC NORTH WESLACO WWTP, Weslaco, TX: NPDES TX0137341 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
2Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

NAWSC NORTH WESLACO WWTP, held by NORTH ALAMO WSC, holds NPDES permit TX0137341, which discharges to Hidalgo & Cameron Co Irrigation Dist 9. EPA’s file records it issued June 29, 2017 and expiring July 1, 2020.

NAWSC NORTH WESLACO WWTP, Weslaco, Texas: Individual permit TX0137341, held by NORTH ALAMO WSC; Administratively continued (past its expiration date and still in force until reissued); issued June 29, 2017, term to July 1, 2020; discharges to HIDALGO & CAMERON CO IRRIGATION DIST 9.

Nitrogen, ammonia total [as N]: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest July 31, 2023, largest 44% over the limit.
BOD, carbonaceous [5 day, 20 C]: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest July 31, 2023, largest 158% over the limit.

February 9, 2022: Permit Violations - Violation Specified in Comment (ST6).
November 13, 2020: Permit Violations - Violation Specified in Comment (ST6).

Other permits held by NORTH ALAMO WSC

LA SARA WWTP, Willacy County: TX0114031, issued November 10, 2015
MONTE ALTO WWTP, Edinburg: TX0119024, issued November 4, 2015
LASARA REVERSE OSMOSIS WWTP, Lasara: TX0125156, issued March 12, 2021
DOOLITTLE REVERSE OSMOSIS FACILITY WATER PLANT 1, Edinburg: TX0128350, issued March 18, 2021
OWASSA REVERSE OSMOSIS PLANT, Hidalgo County: TX0128643, issued September 4, 2015
VICTORIA RD PLANT 5 REVERSE OSMOSIS WTP, Donna: TX0132497, issued March 24, 2016
NORTH ALAMO WSC REGIONAL WWTP, Donna: TX0134902, issued March 31, 2014

NAWSC NORTH WESLACO WWTP among its neighbors

EPA’s permit file holds 192 discharge permits in the Upper Pilot Channel-Laguna Madre subwatershed (HUC 121102080300), TX0137341 among them. Its county holds 439, 16 of them major permits; TX0137341 is a minor permit.

Other permits in the Upper Pilot Channel-Laguna Madre subwatershed (HUC 121102080300)

107 SH RD FROM FM 495 TO FM 1924, Mission: TXR1594XM, minor permit, discharging to LAGUNA MADRE VIA DRAINAGE DITCHES, permit term to March 4, 2028
1423 FM ROAD SOUTH FROM BUS 83, Donna: TXR1572WS, minor permit, discharging to LAGUNA MADRE VIA DRAINAGE DITCHES, permit term to March 4, 2028
2021-2022 WESLACO WATER & SEWER IMPROVEMENTS, Weslaco: TXR1586OH, minor permit, discharging to NUECES-RIO GRANDE COASTAL BASIN, permit term to March 4, 2028
ACME SQUARE SUBDIVISION, Pharr: TXR1587RM, minor permit, discharging to DRAINAGE DITCHES FLOWING INTO LOWER LAGUNA MADRE, permit term to March 4, 2028
ALAMO CONCRETE PRODUCTS PLANT 87, Donna: TXG110936, minor permit, discharging to RIO GRANDE RIVER, permit term to November 7, 2021
ALAMO RGV PARTS DBA DISCOUNT USED AUTO PARTS, Alamo: TXR05FX48, minor permit, permit term to August 13, 2026
ALHAMBRA ON 10TH SUBDIVISION, Mcallen: TXR1519YB, minor permit, discharging to LAGUNA MADRE, permit term to March 4, 2028
ALI ESTATES, Edinburg: TXR1507VT, minor permit, discharging to PRIVATE DETENTION POND, permit term to March 4, 2028
ANDARA APARTMENTS ON WARE RD, Mcallen: TXR1590LZ, minor permit, discharging to FIRE HYDRANT, permit term to March 4, 2028
B & L METALS RECYCLING, Edinburg: TXR05FM98, minor permit, permit term to August 13, 2026

Identity

Facility as filed	NAWSC NORTH WESLACO WWTP
Permittee as filed	NORTH ALAMO WSC
NPDES ID	TX0137341
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	June 29, 2017
Expiration date	July 1, 2020
Address	Weslaco, TX 78596
Receiving water	HIDALGO & CAMERON CO IRRIGATION DIST 9
Subwatershed	Upper Pilot Channel-Laguna Madre (HUC 121102080300)
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

2Pollutants on file
0Under a numeric limit
2With a violation of any kind
2With 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]	0	2	2	July 31, 2023	44% over the limit
BOD, carbonaceous [5 day, 20 C]	0	2	2	July 31, 2023	158% over the limit

Inspections, violations and enforcement

2Single-event violations

Date	What EPA recorded	Agency
February 9, 2022	Permit Violations - Violation Specified in Comment	ST6
November 13, 2020	Permit Violations - Violation Specified in Comment	ST6

Inspections

EPA’s inspection file holds no inspection for NPDES TX0137341.

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 TX0137341.

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

This public-records page covers Clean Water Act discharge permit NPDES TX0137341 for NAWSC NORTH WESLACO WWTP in Weslaco, TX, held by NORTH ALAMO WSC, which discharges to Hidalgo & Cameron Co Irrigation Dist 9 and sits in the Upper Pilot Channel-Laguna Madre subwatershed (HUC 121102080300). The permit is listed as administratively continued and a Minor discharger, with 2 pollutants under a numeric limit and 2 pollutants with an effluent exceedance.