County · Texas
Limestone County, Texas: drinking water records
Explore EPA records for 19 community water systems across 8 ZIP codes in Limestone County, then find water-testing resources and available recent monitoring-station readings.
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 3 of the 19 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
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 19 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| City of Mexia TX1470004 | 7,459 | 120 | 0 | 1 | 2.1 ppbbelow the action level |
| City of Groesbeck TX1470002 | 4,250 | 120 | 1 | 19 | 0 ppbbelow the action level |
| Point Enterprise WSC TX1470010 | 2,388 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Prairie Hill WSC TX1470011 | 2,150 | 0 | 0 | 38 | 0 ppbbelow the action level |
| White Rock WSC 2 Forest Glade TX1470026 | 1,968 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Slc WSC TX1470031 | 1,749 | 0 | 0 | 32 | 6 ppbbelow the action level |
| City of Coolidge TX1470001 | 786 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Shiloh WSC TX1470012 | 615 | 0 | 0 | 1 | 0 ppbbelow the action level |
| White Rock WSC 3 West Lake Mexia TX1470027 | 602 | 0 | 0 | 1 | 0 ppbbelow the action level |
| City of Thornton Water System TX1470005 | 530 | 60 | 0 | 0 | 0 ppbbelow the action level |
| White Rock WSC 1 White Rock TX1470014 | 282 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Green Lake Estates Water Supply TX1470034 | 66 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Bistone Municipal Water Supply TX1470006 | 768 | 0 | 0 | 0 | 0 ppbbelow the action level |
| City of Kosse TX1470003 | 461 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Hhsc Mexia State Supported Living Center TX1470009 | 256 | 0 | 0 | 0 | 0 ppbbelow the action level |
| City of Tehuacana TX1470013 | 224 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Cedar Creek Water Supply TX1470021 | 207 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Big Creek West Subdivision Water Sytem TX1470032 | 57 | 0 | 0 | 0 | 2.6 ppbbelow the action level |
| Farrar WSC TX1470007 | 52 | 0 | 0 | 0 | 0.3 ppbbelow the action level |
USGS · Monitoring stations
The water, more recently.
Available station readings in Limestone 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.
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.
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.
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.
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.
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 reportsResource 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 Limestone County
8ZIP 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
- Coolidge
- Groesbeck
- Kosse
- Mart
- Mexia
- Tehuacana
- Thornton
View ZIP areas and understand coverage
- 76635Coolidge
- 76642Groesbeck
- 76653Kosse
- 76664Mart
- 76667Mexia
- 76678
- 76686Tehuacana
- 76687Thornton
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.
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.