A88/100
Ennis Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 36,579 residents · Texas
What's In Ennis's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
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 ENNIS
Population Served
24,891
Water Source
Surface Water
System ID
TX0700001
EAST GARRETT WSC
Population Served
1,521
Water Source
Purchased Surface Water
System ID
TX0700024
RICE WSC
Population Served
10,167
Water Source
Purchased Surface Water
System ID
TX1750019
Frequently Asked Questions About Ennis Water
Is Ennis tap water safe to drink?
Ennis, Texas tap water receives a grade of A (88/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Ennis's water?
69 contaminants were tested in Ennis's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Ennis have any water quality violations?
Yes, Ennis has 26 EPA violation(s) on record, with the most recent in 2016. Violation types include Other, MR, MCL. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in Ennis?
Ennis 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. All contaminants are within health goals.
Where does Ennis's tap water come from?
Ennis's drinking water is sourced from surface water and supplied by CITY OF ENNIS and 2 other water system(s). The system serves approximately 36,579 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Ennis'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. Ennis'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 Ennis's water compare to other cities in Texas?
Ennis's water quality score of 88/100 earns a grade of A, which is considered excellent. This places Ennis 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 Ennis's water quality?
If you have concerns about Ennis'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 ENNIS) 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.