A89/100
Little Elm Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 41,000 residents · Texas
What's In Little Elm'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 | 1130.00 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 2005.
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 LITTLE ELM
Population Served
41,000
Water Source
Purchased Surface Water
System ID
TX0610035
Frequently Asked Questions About Little Elm Water
Is Little Elm tap water safe to drink?
Little Elm, Texas tap water receives a grade of A (89/100), 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 Little Elm's water?
Of the 69 contaminants tested in Little Elm'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 Little Elm have any water quality violations?
Yes, Little Elm has 1 EPA violation(s) on record, with the most recent in 2005. Violation types include MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Little Elm?
Little Elm 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 Little Elm's tap water come from?
Little Elm's drinking water is sourced from purchased surface water and supplied by TOWN OF LITTLE ELM. The system serves approximately 41,000 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Little Elm'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. Little Elm'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 Little Elm's water compare to other cities in Texas?
Little Elm's water quality score of 89/100 earns a grade of A, which is considered excellent. This places Little Elm 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 Little Elm's water quality?
If you have concerns about Little Elm'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 LITTLE ELM) 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.