A89/100
HICKSVILLE WD — Water Quality Report 2026
Serving 48,000 people · New York
Water Source
Groundwater
County
—
System ID
NY2902829
Violations
1
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
1,4-dioxane | 0.620 µg/L | — | Above Goal |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2006.
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
Frequently Asked Questions About HICKSVILLE WD
Is HICKSVILLE WD water safe to drink?
HICKSVILLE WD water receives a grade of A (89/100), which is considered excellent. Out of 66 contaminants tested, none exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has HICKSVILLE WD detected?
66 contaminants were tested in HICKSVILLE WD's water. Notable contaminants include Lead (90th percentile), 1,4-dioxane. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does HICKSVILLE WD have any EPA violations?
Yes, HICKSVILLE WD has 1 EPA violation(s) on record, with the most recent in 2006. Violation types include MCL. 1 are health-based violations.
How many people does HICKSVILLE WD serve?
HICKSVILLE WD serves approximately 48,000 people, New York. The system provides water to 1 community: Oyster Bay (T).
What type of water does HICKSVILLE WD provide?
HICKSVILLE WD sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NY2902829.
How does HICKSVILLE WD compare to other utilities in New York?
HICKSVILLE WD scores 89/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our New York state page for a full comparison of water systems.