B73/100
Williamsburg Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 75,391 residents · Virginia
What's In Williamsburg's Tap Water?
66
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 1400.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1992.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
JCSA - CENTRAL SYSTEM
Population Served
57,726
Water Source
Groundwater
System ID
VA3095490
WILLIAMSBURG, CITY OF
Population Served
16,300
Water Source
Surface Water
System ID
VA3830850
WOODHAVEN SHORES
Population Served
1,365
Water Source
Groundwater
System ID
VA4127925
Frequently Asked Questions About Williamsburg Water
Is Williamsburg tap water safe to drink?
Williamsburg, Virginia tap water receives a grade of B (73/100), which is considered good. Out of 69 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 2 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Williamsburg's water?
Of the 69 contaminants tested in Williamsburg's water supply, the most notable include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Williamsburg have any water quality violations?
Yes, Williamsburg has 28 EPA violation(s) on record, with the most recent in 2022. Violation types include MR, MCL. 10 of these are health-based violations, which are the most serious category.
Do I need a water filter in Williamsburg?
Williamsburg water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 2 contaminant(s) exceed these stricter goals.
Where does Williamsburg's tap water come from?
Williamsburg's drinking water is sourced from groundwater and supplied by JCSA - CENTRAL SYSTEM and 2 other water system(s). The system serves approximately 75,391 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Williamsburg's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Williamsburg's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Williamsburg's water compare to other cities in Virginia?
Williamsburg's water quality score of 73/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Virginia state page to see how all cities in the state compare.
What should I do if I'm concerned about Williamsburg's water quality?
If you have concerns about Williamsburg's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (JCSA - CENTRAL SYSTEM) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.