Liberty Utilities New York - Mill Neck, NY
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Liberty Utilities New York - Mill Neck
Liberty Utilities New York - Mill Neck serves about 280 people through 97 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Nassau County, New York. EPA system ID: NY2902838; phone on file: 516-632-2218. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Liberty Utilities New York - Mill Neck's lead record
That is down 4.2 ppb from 4.2 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Liberty Utilities New York - Mill Neck is 5.6 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2023 | 4.2 ppb |
| 2020 | 5.6 ppb |
| 2019 | 4.9 ppb |
| 2018 | 4.5 ppb |
| 2018 | 5.3 ppb |
| 2017 | 4.3 ppb |
Against other New York systems
Of the 2,077 New York systems with a lead result, the median latest reading is 1.5 ppb; 17 are over 15 ppb right now and 165 have gone over at some point. Liberty Utilities New York - Mill Neck's reported as 0 (not detected) sits at the 11th percentile in New York and the 18th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Nassau County
39 other systems share Nassau County; 26 of them have a higher latest lead result than Liberty Utilities New York - Mill Neck. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Liberty Utilities New York - Lynbrook | 220,000 | 5 ppb |
| Liberty Utilities New York - Merrick | 135,000 | 0 (not detected) |
| Wa Of Western Nassau | 120,000 | 1.4 ppb |
| Town Of Hempstead Water Department | 110,000 | 1 ppb |
| Jericho Wd | 58,000 | 2 ppb |
| Hempstead (V) | 56,000 | 0 (not detected) |
| Hicksville Wd | 48,000 | 1 ppb |
| Freeport (V) | 45,000 | 3 ppb |
| South Farmingdale Wd | 44,700 | 1 ppb |
| Manhasset Lakeville Wd | 43,000 | 1.6 ppb |
Next steps for Merrick, NY
Look up your address in Liberty Utilities New York - Mill Neck's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Liberty Utilities New York - Mill Neck whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1600 ppb (copper action level 1,300 ppb).
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. Small systems behave differently: why small systems go over more often.