D39/100
Great Neck Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 74,400 residents · New York
What's In Great Neck's Tap Water?
66
Contaminants Tested
0
Exceed EPA Limits
2
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
1,4-dioxane | 0.570 µg/L | — | Above Goal |
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 2002.
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
MANHASSET LAKEVILLE WD
Population Served
43,000
Water Source
Groundwater
System ID
NY2902836
WA OF GREAT NECK NORTH
Population Served
31,400
Water Source
Groundwater
System ID
NY2902841
Frequently Asked Questions About Great Neck Water
Is Great Neck tap water safe to drink?
Great Neck, New York tap water receives a grade of D (39/100), which is considered poor. 0 contaminant(s) exceed EPA maximum contaminant levels and 389 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Great Neck's water?
Of the 66 contaminants tested in Great Neck's water supply, the most notable include Lead (90th percentile), chlorate, 1,4-dioxane. No contaminants exceed EPA legal limits. 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Great Neck have any water quality violations?
Yes, Great Neck has 389 EPA violation(s) on record, with the most recent in 2012. Violation types include MR, MCL. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in Great Neck?
Great Neck 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. 3 contaminant(s) exceed these stricter goals.
Where does Great Neck's tap water come from?
Great Neck's drinking water is sourced from groundwater and supplied by MANHASSET LAKEVILLE WD and 1 other water system(s). The system serves approximately 74,400 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Great Neck'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. Great Neck'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 Great Neck's water compare to other cities in New York?
Great Neck's water quality score of 39/100 earns a grade of D, which is considered poor. This is a concerning score that suggests significant water quality issues. Visit our New York state page to see how all cities in the state compare.
What should I do if I'm concerned about Great Neck's water quality?
If you have concerns about Great Neck'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 (MANHASSET LAKEVILLE WD) 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.