Little Elm, Texas Water Quality Report
Water quality data for 4 water systems serving 41,234 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.007 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.004 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHxA | 0.004 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFPeA | 0.005 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (41)
75
Sep 13, 2025
75
Jul 24, 2025
75
Jun 30, 2025
2E
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
4G
Oct 17, 2024
75
Mar 26, 2023
75
Jun 25, 2022
75
Apr 3, 2022
75
Apr 2, 2022
75
Apr 2, 2022
75
Dec 19, 2021
75
Dec 1, 2021
75
Nov 1, 2021
75
Oct 2, 2021
75
Oct 1, 2021
75
Jul 4, 2021
75
Apr 16, 2021
75
Feb 25, 2021
75
Jan 16, 2021
45
Oct 3, 2020
45
Oct 3, 2020
75
Oct 1, 2020
75
Oct 1, 2020
75
Mar 29, 2019
75
Mar 29, 2019
75
Mar 29, 2019
Violation
Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
Resolved Violations (450)
03
Apr 1, 2024 — Jun 30, 2024
03
Apr 1, 2024 — Jun 30, 2024
03
Apr 1, 2024 — Jun 30, 2024
03
Jan 1, 2024 — Mar 31, 2024
03
Jan 1, 2024 — Mar 31, 2024
+ 445 more resolved violations
Frequently Asked Questions
Is Little Elm tap water safe to drink?
Little Elm's water meets all EPA maximum contaminant levels. However, 4 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Little Elm tap water?
4 contaminants have been detected in Little Elm's water supply across 4 water systems. See the full contaminant table above for details.
How can I improve my water quality in Little Elm?
Install a water filter rated for the specific contaminants found in Little Elm's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Little Elm have any water quality violations?
Yes, Little Elm currently has 41 active violations. See the violations section above for details.