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Tap water quality report

Town of Little Elm

EPA monitoring tested this supplier for 44 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

44
contaminants tested
18
detected
41,000
people served
4
health-based violations
Water source
SWP
Ownership
Local government
Counties served
Denton

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
10
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2005-08-01 → 2005-08-31
MCL Health-based Resolved 2005-08-01 → 2005-08-31
MCL Health-based Resolved 2005-08-01 → 2005-08-31
MCL Health-based Resolved 2005-08-01 → 2005-08-31
MR Monitoring Resolved 2025-12-30
MR Monitoring Resolved 2025-12-30
MR Monitoring Resolved 2024-01-01 → 2024-03-31
MR Monitoring Resolved 2024-01-01 → 2024-03-31
MR Monitoring Resolved 2024-01-01 → 2024-03-31
MR Monitoring Resolved 2024-01-01 → 2024-03-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0075 µg/L 4/4 2025
Pfhxa 0.0044 µg/L 4/4 2025
Pfpea 0.0049 µg/L 4/4 2025
PFBS 0.0037 µg/L 2/4 2025

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
23.6 µg/L
No EPA limit set
worst single sample: 25 µg/L
101/101 SYR4 2012–2019
Chloroform
16.9 µg/L
No EPA limit set
worst single sample: 22.8 µg/L
101/101 SYR4 2012–2019
Dibromochloromethane
15.4 µg/L
No EPA limit set
worst single sample: 16 µg/L
101/101 SYR4 2012–2019
Dichloroacetic Acid
19.2 µg/L
No EPA limit set
worst single sample: 21.3 µg/L
101/101 SYR4 2012–2019
TTHM
55.4 µg/L 69%
of the EPA limit 80 µg/L
worst single sample: 58.3 µg/L
101/101 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
30.7 µg/L 51%
of the EPA limit 60 µg/L
worst single sample: 38.2 µg/L
101/101 SYR4 2012–2019
Trichloroacetic Acid
5.9 µg/L
No EPA limit set
worst single sample: 7.9 µg/L
100/101 SYR4 2012–2019
Copper
421.52 µg/L 32%
of the EPA limit 1300 µg/L
worst single sample: 770.2 µg/L
89/90 SYR4 2013–2019
Dibromoacetic Acid
12.57 µg/L
No EPA limit set
worst single sample: 20.2 µg/L
87/101 SYR4 2012–2019
Bromoform
7.3 µg/L
No EPA limit set
worst single sample: 7.9 µg/L
80/101 SYR4 2012–2019
Monobromoacetic Acid
3.83 µg/L
No EPA limit set
worst single sample: 4.7 µg/L
58/101 SYR4 2012–2019
Lead
3.992 µg/L 27%
of the EPA limit 15 µg/L
worst single sample: 7.03 µg/L
39/90 SYR4 2013–2019
Monochloroacetic Acid
6.9 µg/L
No EPA limit set
worst single sample: 10.7 µg/L
36/101 SYR4 2012–2019
Lead
0.0022 mg/L 14%
of the EPA limit 0.0150 mg/L
14/14 LCR 2025
26 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
CORNELIOUS, CURTIS, J
Phone
214-975-0400
Email
ccornelious@littleelm.org

Frequently asked questions about Town of Little Elm

Is Town of Little Elm tap water safe to drink?

EPA monitoring detected 18 contaminants in Town of Little Elm's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Town of Little Elm's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does Town of Little Elm serve?

Town of Little Elm reports serving 41,000 people in Texas, per its EPA record.

Has Town of Little Elm had any water quality violations?

The EPA has 10 violations on file for Town of Little Elm, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.