Is Westlake, TX Tap Water Safe to Drink?
Graded A, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
90.3/100
waterverge.com Westlake, TX — Water Quality Report
Westlake's drinking water received a grade of A (90.3 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 2,002 residents using purchased surface water.
Lead levels were measured at 1.6 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 5 violations on record, including 0 health-based violations. 2 remain unresolved.
What to know about Westlake's water
Westlake ranks #31 out of 1067 cities in Texas for water quality, placing it one of the best in the state.
The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.
As a small community water system, Westlake may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Westlake, TX water safe to drink?
Westlake's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (90.3/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 2,002 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Westlake
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Westlake's water quality assessment. Grade: A (90.3/100).
Federal disaster declaration (FEMA DR-4781). Flood event — may have impacted local water infrastructure.
Contaminants: Lead and Copper Rule.
Contaminants: Lead and Copper Rule.
Contaminants: Chlorine.
Federal disaster declaration (FEMA DR-3294). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Westlake's water supply.
Well within EPA limits.
Violation history
Westlake's water system has 5 total violations on record, including 0 health-based violations. 2 remain unresolved.
Flood & environmental risk
Denton County has experienced 4 federally declared disasters since 2005. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Denton Ck Nr Justin, Grapevine Lk Nr Grapevine.
Where does Westlake's water come from?
Westlake's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 2,002 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Denton Ck Nr Justin (river), Grapevine Lk Nr Grapevine (lake).
What Westlake residents can do
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Westlake's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Westlake
Industrial polluters nearby
Reported releases to surface water by facilities near Westlake, ranked by pounds discharged annually.
Total reported releases to surface water: 0 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
MM-ROANOKE READY MIX ROANOKE, TX76262 | Lead compounds | 0 | 0.9 mi |
KURITA AMERICA INC GRAPEVINE, TX76051 | — | — | 8.7 mi |
PAVESTONE - GRAPEVINE TX PLANT GRAPEVINE, TX76051 | — | — | 8.4 mi |
SE TX FORT WORTH, TX76177 | — | — | 9.3 mi |
WABTEC MANUFACTURING SOLUTIONS LLC FORT WORTH, TX76177 | — | — | 6.4 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Denton County has experienced 4 federally declared disasters since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 1.6 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Westlake compares by contaminant
Explore where Westlake ranks among all Texas cities for specific contaminants.
Water source & infrastructure
Where Westlake's water comes from
Westlake's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.
These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.
The system is operated by local government ownership and serves approximately 2,002 people through 1 water system.
Water bodies near Westlake
Westlake is located near 2 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Westlake
| System Name | PWSID | Population | Source |
|---|---|---|---|
| TOWN OF WESTLAKE | TX2200350 | 2,002 | SWP |
How Westlake compares
Full Texas rankings →Westlake's score of 90.3/100 is above the average of 46/100 among major Texas cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Texas rankings →About Westlake, TX
Learn more about your water
Guides and resources related to Westlake's water quality findings.
Explore water quality across Tarrant
Frequently asked questions
Is Westlake, TX tap water safe to drink?
Westlake's water quality earned a grade of A (90.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #31 out of 1067 cities tested in Texas.
What contaminants are in Westlake's water?
Lead was measured at 1.6 ppb (90th percentile). 5 violations are on record.
How is Westlake's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Westlake?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Westlake's water come from?
Westlake's water is sourced from Purchased surface water. The city has 1 water system serving approximately 2,002 residents.
How does Westlake's water compare to other cities?
Westlake ranks #31 out of 1067 cities in Texas (better than 97% of state cities) and #2302 out of 15744 cities nationally (85th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Westlake's small water system affect quality?
Westlake's system serves approximately 2,002 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 5 violations on record.