A90/100
Wylie Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 76,341 residents · Texas
What's In Wylie'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 | 803.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2013.
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
CITY OF WYLIE
Population Served
47,322
Water Source
Purchased Surface Water
System ID
TX0430011
EAST FORK SUD
Population Served
17,589
Water Source
Purchased Surface Water
System ID
TX0430033
WYLIE NORTHEAST SUD
Population Served
11,430
Water Source
Purchased Surface Water
System ID
TX0430051
Frequently Asked Questions About Wylie Water
Is Wylie tap water safe to drink?
Wylie, Texas tap water receives a grade of A (90/100), which is considered excellent. Out of 70 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 3 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 Wylie's water?
Of the 70 contaminants tested in Wylie's water supply, the most notable include Copper (90th percentile), Lead (90th percentile), chlorate. 1 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Wylie have any water quality violations?
Yes, Wylie has 10 EPA violation(s) on record, with the most recent in 2020. Violation types include MR, Other. None of these are classified as health-based violations.
Do I need a water filter in Wylie?
Based on EPA data, using a water filter in Wylie is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Wylie's tap water come from?
Wylie's drinking water is sourced from purchased surface water and supplied by CITY OF WYLIE and 2 other water system(s). The system serves approximately 76,341 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Wylie'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. Wylie'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 Wylie's water compare to other cities in Texas?
Wylie's water quality score of 90/100 earns a grade of A, which is considered excellent. This places Wylie 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 Wylie's water quality?
If you have concerns about Wylie'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 (CITY OF WYLIE) 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.