B77/100
Williston Park Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 7,287 residents · New York
What's In Williston Park's Tap Water?
31
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.006 µg/L | 0.004 µg/L | Over Limit |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2013.
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
WILLISTON PARK (V)
Population Served
7,287
Water Source
Groundwater
System ID
NY2902858
Frequently Asked Questions About Williston Park Water
Is Williston Park tap water safe to drink?
Williston Park, New York tap water receives a grade of B (77/100), which is considered good. Out of 31 contaminants tested, 1 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 Williston Park's water?
Of the 31 contaminants tested in Williston Park's water supply, the most notable include PFOA, Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Williston Park have any water quality violations?
Yes, Williston Park has 4 EPA violation(s) on record, with the most recent in 2013. Violation types include MR, TT, MCL. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in Williston Park?
Based on EPA data, using a water filter in Williston Park is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Williston Park's tap water come from?
Williston Park's drinking water is sourced from groundwater and supplied by WILLISTON PARK (V). The system serves approximately 7,287 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Williston Park'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. Williston Park'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 Williston Park's water compare to other cities in New York?
Williston Park's water quality score of 77/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our New York state page to see how all cities in the state compare.
What should I do if I'm concerned about Williston Park's water quality?
If you have concerns about Williston Park'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 (WILLISTON PARK (V)) 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.