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Tap water quality report

Williamsburg, City of

EPA monitoring tested this supplier for 80 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

80
contaminants tested
19
detected
16,300
people served
0
health-based violations
Virginia rankingsLead in VirginiaPFAS in Virginia
Water source
Surface water
Ownership
Local 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.

0
health-based violations
11
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Archived 1980-06-24 → 1981-06-23
MR Monitoring Archived 1980-06-24 → 1981-06-23
MR Monitoring Archived 1980-06-24 → 1981-06-23
MR Monitoring Archived 1980-06-24 → 1981-06-23
MR Monitoring Archived 1980-06-24 → 1981-06-23
MR Monitoring Archived 1980-06-24 → 1981-06-23
MR Monitoring Archived 1980-06-24 → 1981-06-23
MR Monitoring Archived 1980-06-24 → 1981-06-23
MR Monitoring Archived 1980-06-24 → 1981-06-23
MR Monitoring Archived 1980-06-24 → 1981-06-23

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFHXS 0.0031 µg/L 3/4 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
Chlorite
356.3 µg/L 36%
of the EPA limit 1000 µg/L
worst single sample: 429 µg/L
152/174 SYR4 2015–2019
Bromodichloromethane
18 µg/L
No EPA limit set
worst single sample: 20 µg/L
136/136 SYR4 2012–2019
Chloroform
55 µg/L
No EPA limit set
worst single sample: 86 µg/L
136/136 SYR4 2012–2019
Dibromochloromethane
8.425 µg/L
No EPA limit set
worst single sample: 9.7 µg/L
136/136 SYR4 2012–2019
Dichloroacetic Acid
25.65 µg/L
No EPA limit set
worst single sample: 32 µg/L
128/128 SYR4 2012–2019
TTHM
78 µg/L 98%
of the EPA limit 80 µg/L
worst single sample: 107.3 µg/L
128/128 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
45 µg/L 75%
of the EPA limit 60 µg/L
worst single sample: 58 µg/L
128/128 SYR4 2012–2019
Trichloroacetic Acid
18 µg/L
No EPA limit set
worst single sample: 22 µg/L
128/128 SYR4 2012–2019
Monochloroacetic Acid
3.82 µg/L
No EPA limit set
worst single sample: 4.5 µg/L
99/128 SYR4 2012–2019
Copper
243.9 µg/L 19%
of the EPA limit 1300 µg/L
worst single sample: 676 µg/L
67/74 SYR4 2012–2019
Dibromoacetic Acid
2.4 µg/L
No EPA limit set
worst single sample: 2.9 µg/L
44/128 SYR4 2012–2019
Bromoform
1 µg/L
No EPA limit set
 20/136 SYR4 2012–2019
Lead
2.8875 µg/L 19%
of the EPA limit 15 µg/L
worst single sample: 3.1 µg/L
18/74 SYR4 2012–2019
Lead
0.0019 mg/L 13%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2023
Barium
18 µg/L 0.9%
of the EPA limit 2000 µg/L
 8/8 SYR4 2012–2019
Fluoride
965.5 µg/L 24%
of the EPA limit 4000 µg/L
worst single sample: 990 µg/L
8/8 SYR4 2012–2019
Gross Beta Particle Activity
2.36 pCi/L
No EPA limit set
worst single sample: 2.4 pCi/L
2/2 SYR4 2013–2019
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
 1/1 SYR4 2019
61 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylbenzeneHfpo-DaMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitrate-NitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
REED, JACK
Phone
757-220-6140
Email
[email protected]

Frequently asked questions about Williamsburg, City of

Is Williamsburg, City of tap water safe to drink?

EPA monitoring detected 19 contaminants in Williamsburg, City of'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 Williamsburg, City of's water?

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

How many people does Williamsburg, City of serve?

Williamsburg, City of reports serving 16,300 people in Virginia, per its EPA record.

Has Williamsburg, City of had any water quality violations?

The EPA has 11 violations on file for Williamsburg, City of, of which 0 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.