A80/100
Flower Mound Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 80,000 residents · Texas
What's In Flower Mound's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
2
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 462.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
TOWN OF FLOWER MOUND
Population Served
80,000
Water Source
Purchased Surface Water
System ID
TX0610023
Frequently Asked Questions About Flower Mound Water
Is Flower Mound tap water safe to drink?
Flower Mound, Texas tap water receives a grade of A (80/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 2 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Flower Mound's water?
Of the 69 contaminants tested in Flower Mound's water supply, the most notable include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Flower Mound have any water quality violations?
Yes, Flower Mound has 10 EPA violation(s) on record, with the most recent in 2020. Violation types include MR, MON, Other. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Flower Mound?
Flower Mound water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 2 contaminant(s) exceed these stricter goals.
Where does Flower Mound's tap water come from?
Flower Mound's drinking water is sourced from purchased surface water and supplied by TOWN OF FLOWER MOUND. The system serves approximately 80,000 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Flower Mound's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Flower Mound's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Flower Mound's water compare to other cities in Texas?
Flower Mound's water quality score of 80/100 earns a grade of A, which is considered excellent. This places Flower Mound among the better-performing water systems in Texas. Visit our Texas state page to see how all cities in the state compare.
What should I do if I'm concerned about Flower Mound's water quality?
If you have concerns about Flower Mound's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (TOWN OF FLOWER MOUND) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.