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County · Texas

Hidalgo County, Texas: drinking water records

Explore EPA records for 25 community water systems across 29 ZIP codes in Hidalgo County, then find water-testing resources and available recent monitoring-station readings.

In focus25Community water systems
Public records. Clearer context.

Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages

Drinking-water records

EPA survey and compliance records are historical reports. UCMR 5 results are available for 17 of the 25 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.

17
systems in EPA's PFAS survey
14
systems where PFAS was found
0
systems at or above the PFOA or PFOS limit, on the yearly-average basis EPA uses
1
systems that have reached the lead action level
12
systems with a health-based violation since 2016

System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.

Water systems in this county

All 25 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.

Water systemPeople servedPFAS survey resultsPFAS foundHealth-based violationsLead, 9 in 10 homes at or below
North Alamo WSC TX1080029171,195780550 ppb
City of Edinburg TX108000485,224240320 ppb
Sharyland WSC TX108003368,562360811 ppb
Agua SUD TX108002253,796240310.8 ppb
City of Weslaco TX108001140,03395611.5 ppb
Military Hwy WSC Las Rusias TX108006717,9432400250 ppb
City of Mercedes TX108000716,258120113.7 ppb
City of Hidalgo Water System TX108002114,800120011.8 ppb
Mcallen Public Utility TX1080006189,957240102.3 ppb
City of Pharr TX108000979,715120101.1 ppb
City of Mission TX108000877,058240100 ppb
City of San Juan TX108001030,000240600 ppb
City of Alamo TX108000121,065120301 ppb
City of Donna TX108000218,720120601.6 ppb
Military Hwy WSC Progreso TX108023412,198120000 ppb
Hidalgo County MUD 1 TX10800888,420120301.1 ppb
City of Elsa TX10800055,500120201.7 ppb
City of la Joya TX10802133,03300140 ppb
City of la Villa TX10800232,7810010 ppb
Llano Grande Lake Park East TX10800341,3000063.1 ppb
Llano Grande Lake Park West TX108023630000215.6 ppbat or above the action level
City of Edcouch TX10800032,8780000 ppb
Military Hwy WSC Weslaco TX10802351,5840000 ppb
Quiet Village II TX10802214920007.2 ppb
Trails End Mobile Home Park TX10802232000000 ppb

Shaded rows report lead at or above the 15 ppb action level in their latest monitoring period. EPA sets that level for the value 9 in 10 sampled homes fall at or below; reaching it requires the utility to act, and it is not a measurement of any single tap. One system in this table is at or above it. What an action level means

USGS · Monitoring stations

The water, more recently.

Available station readings in Hidalgo County, Texas. Each measurement keeps its time, unit and original source.

These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.

Recent observations load when this section comes into view.

Station coverage and available measurements vary by county.

Explore USGS Water Data
How these readings update

We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.

Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.

Your next step

Water testing, reports & local help.

Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.

Official national directories

Water testing

Find your state’s private-well program

EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Water testing

Find a certified drinking-water laboratory

Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Public records

Find your utility’s Consumer Confidence Report

EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Public records

Explore USGS water observations

Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.

U.S. Geological Survey
Source reviewed

A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.

Understand water testing and laboratory reports

Resource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction

Explore your area

Local coverage in Hidalgo County

29ZIP areas in this overview

Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.

Towns and communities

  • Alamo
  • Alton
  • Donna
  • Edinburg
  • Harding Gill Tract
  • Hidalgo
  • La Blanca
  • La Homa
  • La Joya
  • La Villa
  • Linn
  • Los Ebanos
  • McAllen
  • Mercedes
  • Mission
  • Monte Alto
  • Penitas
  • Pharr
  • Progreso
  • San Juan
  • Sullivan City
  • Weslaco
Explore water-system recordsFind water-testing resources
View ZIP areas and understand coverage
  • 78501McAllen
  • 78503McAllen
  • 78504McAllen
  • 78516Alamo
  • 78537Donna
  • 78538Monte Alto
  • 78539Edinburg
  • 78540
  • 78541Edinburg
  • 78542Linn
  • 78543La Blanca
  • 78549Harding Gill Tract
  • 78557Hidalgo
  • 78558La Blanca
  • 78560La Joya
  • 78562La Villa
  • 78563Linn
  • 78565Los Ebanos
  • 78570Mercedes
  • 78572Mission
  • 78573Alton
  • 78574La Homa
  • 78576Penitas
  • 78577Pharr
  • 78579Progreso
  • 78589San Juan
  • 78595Sullivan City
  • 78596Weslaco
  • 78599Weslaco

These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.

Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.

Beyond this county page

Keep reading. Compare nearby.

PFASChoosing a PFAS filterPFAS was found in 14 of the 17 systems EPA surveyed here. See how to check a filter’s certified PFAS reduction.LeadChoosing a lead filter1 system here has reached the lead action level. See how to check a filter’s lead-reduction certification.Your utilityFind your annual water reportConfirm the supplier on your bill, then read its Consumer Confidence Report for local results.

Counties near Hidalgo County

All Texas counties

Sources and scope

EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.

Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.

Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.

Keep exploring

Every record tells
part of the story.

Find a place. Read the measurements.
Understand the context.

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