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Tap water quality report

Langley Air Force Base

EPA monitoring tested this supplier for 44 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

44
contaminants tested
17
detected
10,886
people served
22
health-based violations
Water source
SWP
Ownership
Federal government

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.

22
health-based violations
44
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2013-09-01 → 2013-09-30
MCL Health-based Resolved 2013-09-01 → 2013-09-30
MCL Health-based Resolved 2013-09-01 → 2013-09-30
MCL Health-based Resolved 2013-09-01 → 2013-09-30
MCL Health-based Resolved 2013-08-01 → 2013-08-31
MCL Health-based Resolved 2013-08-01 → 2013-08-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0048 µg/L 2/4 2024
PFHXS 0.0041 µg/L 2/4 2024
Pfpea 0.0045 µg/L 2/4 2024
PFOS 0.0056 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
Copper
615.9 µg/L 47%
of the EPA limit 1300 µg/L
worst single sample: 1330 µg/L
130/130 SYR4 2012–2018
TTHM
30.96 µg/L 39%
of the EPA limit 80 µg/L
worst single sample: 35.6 µg/L
125/126 SYR4 2012–2019
Bromodichloromethane
6.28 µg/L
No EPA limit set
worst single sample: 7.4 µg/L
105/106 SYR4 2012–2019
Chloroform
24.28 µg/L
No EPA limit set
worst single sample: 28 µg/L
105/106 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
30.6 µg/L 51%
of the EPA limit 60 µg/L
worst single sample: 38 µg/L
95/126 SYR4 2012–2019
Dibromochloromethane
1.945 µg/L
No EPA limit set
worst single sample: 2.4 µg/L
92/106 SYR4 2012–2019
Dichloroacetic Acid
27 µg/L
No EPA limit set
worst single sample: 29 µg/L
80/105 SYR4 2012–2019
Trichloroacetic Acid
6.55 µg/L
No EPA limit set
worst single sample: 9 µg/L
70/105 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
17/17 LCR 2024
Lead
10.5 µg/L 70%
of the EPA limit 15 µg/L
worst single sample: 11 µg/L
11/130 SYR4 2012–2018
Monochloroacetic Acid
5.2 µg/L
No EPA limit set
worst single sample: 6 µg/L
9/105 SYR4 2012–2019
Dibromoacetic Acid
1 µg/L
No EPA limit set
4/105 SYR4 2012–2019
Monobromoacetic Acid
11 µg/L
No EPA limit set
1/104 SYR4 2012–2019
27 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaBromoformHfpo-DaNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
XAYARATH, COMMANDER SOMVANG
Email
[email protected]

Frequently asked questions about Langley Air Force Base

Is Langley Air Force Base tap water safe to drink?

EPA monitoring detected 17 contaminants in Langley Air Force Base'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 Langley Air Force Base's water?

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

How many people does Langley Air Force Base serve?

Langley Air Force Base reports serving 10,886 people in Virginia, per its EPA record.

Has Langley Air Force Base had any water quality violations?

The EPA has 44 violations on file for Langley Air Force Base, of which 22 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.