- EPA's UCMR 5 testing looked for 30 contaminants here and found 1.
- Lithium: found in 1 of 13 samples, average 10.7 µg/L, highest 139 µg/L (EPA UCMR 5 testing, Mar 2023–Jun 2025)
- Lead, 90th percentile: 0 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jul 1, 2025–Dec 31, 2025). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
- Health-based violation: Lead and Copper Rule, Lead and Copper Rule, Jul 2024–May 2025 (EPA SDWIS)
- Health-based violation: Lead and Copper Rule, Lead and Copper Rule, Jan 2024–May 2025 (EPA SDWIS)
- Health-based violation: Lead and Copper Rule, Lead and Copper Rule, Jul 2023–May 2025 (EPA SDWIS)
Public EPA test results
Can you drink Merrick tap water? What EPA records show
EPA NY2902840 · serves Hempstead (T), NY · about 135,000 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
Liberty Utilities New York - Merrick (EPA NY2902840)
ScoreYourWater.com gives no verdict on your tap water; it shows what the public records say, as of October 14, 2026. For Merrick's main utility, Liberty Utilities New York - Merrick: 3 health-based violations since July 1, 2021 in EPA records (EPA SDWIS). PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
What EPA records show for Liberty Utilities New York - Merrick, as of October 14, 2026
3 health-based violations since July 1, 2021 in EPA records (EPA SDWIS).
Lead, 90th percentile: 0 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jul 1, 2025–Dec 31, 2025). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
EPA's UCMR 5 testing looked for 30 contaminants here and found 1.
PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Liberty Utilities New York - Merrick use chloramine?
We didn't find chloramine in Liberty Utilities New York - Merrick's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)