Public water system record

Liberty Utilities New York - Merrick

Serves Wantagh, Merrick, East Massapequa and 6 more places, Nassau County, NY · 135,000 people served

Federal records show 3 health-based violations and no monitoring/reporting issues for Liberty Utilities New York - Merrick in the last ten years. The most serious issue in this window was a resolved Lead and Copper Rule violation.

  • NY2902840
  • MERRICK
  • NY
  • 135,000 served

System profile

Source water Groundwater
ZIP 11566
EPA system ID NY2902840

Verify this system on EPA ECHO →

Health-based violations, last 10 years
3
Resolved
3
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Liberty Utilities New York - Merrick draws water from 17 wells (1 of them for emergency, seasonal or other part-time use).
  • Record on file since 1999, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 32 lead and 253 unknown out of 45,999 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Lead and Copper Rule
Treatment technique failure
350 Jul 1, 2024 Resolved No
Lead and Copper Rule
Treatment technique failure
350 Jan 1, 2024 Resolved No
Lead and Copper Rule
Treatment technique failure
350 Jul 1, 2023 Resolved No

Full record since 1999

EPA's records for Liberty Utilities New York - Merrick go back to 1999. Before October 19, 2016 they list no health-based violations and 59 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 2
2000s 0 28
2010 to October 18, 2016 0 29
2020s 3 0

What the violations mean

Lead and Copper Rule

3 incidents

The system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Where the water comes from

Liberty Utilities New York - Merrick draws water from 17 wells (1 of them for emergency, seasonal or other part-time use).

Annual water quality report

Liberty Utilities New York - Merrick must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by New York.