← Texas

Tap water quality report

City of Cockrell Hill

EPA monitoring tested this supplier for 44 contaminants and detected 22. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

44
contaminants tested
22
detected
3,855
people served
66
health-based violations
Water source
SWP
Ownership
Local government
Counties served
Dallas

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.

66
health-based violations
102
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2013-03-01 → 2013-03-31
MCL Health-based Resolved 2013-03-01 → 2013-03-31
MCL Health-based Resolved 2013-03-01 → 2013-03-31
MCL Health-based Resolved 2013-03-01 → 2013-03-31
MCL Health-based Resolved 2010-09-01 → 2010-09-30
MCL Health-based Resolved 2010-09-01 → 2010-09-30
MCL Health-based Resolved 2010-09-01 → 2010-09-30
MCL Health-based Resolved 2010-09-01 → 2010-09-30
MCL Health-based Resolved 2010-09-01 → 2010-09-30
MCL Health-based Resolved 2009-10-01 → 2009-10-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0069 µg/L 4/4 2024
Pfhxa 0.0157 µg/L 4/4 2024
Pfpea 0.0158 µg/L 4/4 2024
Pfba 0.0095 µg/L 3/4 2024
Pfhpa 0.0044 µg/L 2/4 2024
PFHXS 0.0042 µg/L 2/4 2024
PFOA 0.0051 µg/L 1/4 2024
PFOS 0.0041 µg/L 1/4 2024

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
6.493 µg/L
No EPA limit set
worst single sample: 10.3 µg/L
62/62 SYR4 2012–2019
Chloroform
11.185 µg/L
No EPA limit set
worst single sample: 18.5 µg/L
62/62 SYR4 2012–2019
TTHM
23.29 µg/L 29%
of the EPA limit 80 µg/L
worst single sample: 25.5 µg/L
62/62 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
16.89 µg/L 28%
of the EPA limit 60 µg/L
worst single sample: 40.8 µg/L
62/62 SYR4 2012–2019
Dichloroacetic Acid
13.3 µg/L
No EPA limit set
worst single sample: 21 µg/L
61/62 SYR4 2012–2019
Copper
362.7 µg/L 28%
of the EPA limit 1300 µg/L
worst single sample: 565 µg/L
60/60 SYR4 2013–2019
Dibromochloromethane
7.647 µg/L
No EPA limit set
worst single sample: 9.06 µg/L
59/62 SYR4 2012–2019
Trichloroacetic Acid
2.66 µg/L
No EPA limit set
worst single sample: 4.6 µg/L
45/62 SYR4 2012–2019
Dibromoacetic Acid
5 µg/L
No EPA limit set
worst single sample: 6.6 µg/L
33/62 SYR4 2012–2019
Monochloroacetic Acid
6.12 µg/L
No EPA limit set
worst single sample: 35.4 µg/L
28/62 SYR4 2012–2019
Bromoform
5.394 µg/L
No EPA limit set
worst single sample: 5.79 µg/L
27/62 SYR4 2012–2019
Lead
19.977 µg/L 133%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 52.1 µg/L
14/60 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
13/13 LCR 2025
Monobromoacetic Acid
1.7 µg/L
No EPA limit set
worst single sample: 1.8 µg/L
6/62 SYR4 2012–2019
22 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
CARRERA, LUIS, D
Phone
214-330-6333
Email
[email protected]

Frequently asked questions about City of Cockrell Hill

Is City of Cockrell Hill tap water safe to drink?

EPA monitoring detected 22 contaminants in City of Cockrell Hill'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 City of Cockrell Hill's water?

EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does City of Cockrell Hill serve?

City of Cockrell Hill reports serving 3,855 people in Texas, per its EPA record.

Has City of Cockrell Hill had any water quality violations?

The EPA has 102 violations on file for City of Cockrell Hill, of which 66 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.