Is Great Neck Estates, NY tap water safe?
The short answer
Neither of the 2 utilities serving Great Neck Estates has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and New York’s records.
WA of Great Neck North, which serves the most people here, has 3 results above the health goal. The worst: Lead at 3.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Great Neck Estates’s ZIP codes, from EPA’s estimates.
- Open report
WA of Great Neck North
New York · serves 31,400 people · about 3,400 in Great Neck Estates
3 results above the health goal. The worst: Lead at 3.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
Manhasset Lakeville WD
New York · serves 43,000 people · about 2,900 in Great Neck Estates
2 results above EPA’s new limit, which takes effect in 2029 and 3 results above the health goal. The worst: PFNA at 19 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in WA of Great Neck North’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Water testing near Great Neck Estates
The 3 labs New York certifies closest to Great Neck Estates, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
NY Environmental and Analytical Labs Inc.
Port Washington, NY · about 4 miles
Certified for bacteria, lead and copper
EMSL Analytical, Inc.
Carle Place, NY · about 7 miles
Certified for bacteria, lead and copper, asbestos
Nassau County Dept of Health
Hempstead, NY · about 8 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
ZIP codes in Great Neck Estates
Which ZIP codes are in Great Neck Estates: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: NYS Environmental Laboratory Approval Program (ELAP), drinking water labs, as listed in TNI LAMS; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Great Neck Estates
Other towns in Nassau County with a page of their own.
What to do next
- Read WA of Great Neck North’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for LeadRanked by certification and what they cost over five years.The best water filters for lead, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water