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Public water system · NY2902829

Active

Hicksville Wd

At a glance

Hicksville Wd (PWSID NY2902829) is an active community water system in Nassau County, New York. It reports serving 48,000 people through 15,269 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is health-based, and the most recent began in November 2006.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

48,000

Service connections

15,269

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDNY2902829
System typeCommunity water system
Activity statusActive
Population served48,000
Service connections15,269
Primary water sourceGroundwater
Owner typeLocal government
Primacy agencyNY state drinking water program
City servedOyster Bay (T)
StateNew York
ZIP—
CountyNassau County

How does Hicksville Wd compare with other water systems in Nassau County?

By EPA's size categories, Hicksville Wd is a large system (10,001 to 100,000 people). Nassau County has 44 active public water systems. Its population served is about 52% above the county average of 31,534 people per system, and accounts for 3.5% of the 1,387,479 people reported by systems filed under the county. Across New York, the 8,167 active systems average 2,374 people each. Nationally, the average active community water system reports serving 6,703 people, so Hicksville Wd is about 7.2 times that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. New York has 2,281 active community water systems, 28% of the state's 8,167 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 7,096 New York systems (87%) list groundwater as their primary source.

Who owns and regulates Hicksville Wd?

EPA lists Hicksville Wd as owned by a local government. The NY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 21 of the 44 active systems in Nassau County (48%) are also owned by a local government.

Does Hicksville Wd have drinking water violations?

EPA's records list one violation for this system; it is health-based, and the most recent began in November 2006. By type: 1 contaminant level above the legal limit. The contaminant or rule involved is Tetrachloroethylene. EPA lists 1 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

BeganViolationContaminant or ruleHealth-basedStatus
2006-11-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Tetrachloroethylenecode 2987YesResolved

The one violation in EPA's records.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Hicksville Wd: frequently asked questions

Who runs Hicksville Wd?

Hicksville Wd (PWSID NY2902829) is a community water system owned by a local government. It is regulated by the NY state drinking water program.

How many people does Hicksville Wd serve?

Hicksville Wd reports serving 48,000 people through 15,269 service connections in Nassau County, New York.

Where does Hicksville Wd get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Hicksville Wd have any drinking water violations?

EPA's records list one violation for this system; it is health-based, and the most recent began in November 2006. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Hicksville Wd's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list one violation for this system; it is health-based, and the most recent began in November 2006. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.

Where can I find Hicksville Wd's water quality report?

As a community water system, Hicksville Wd must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Nassau County

Water systemCountyPopulation servedTypeSource
Liberty Utilities New York - LynbrookNassau220,000CommunityGroundwater
Liberty Utilities New York - MerrickNassau135,000CommunityGroundwater
Wa of Western NassauNassau120,000CommunityGroundwater
Town of Hempstead Water DepartmentNassau110,000CommunityGroundwater
Jericho WdNassau58,000CommunityGroundwater
Hempstead (V)Nassau56,000CommunityGroundwater

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Hicksville Wd, PWSID NY2902829, New York”, https://aquacensus.com/water-systems/new-york/hicksville-wd-ny2902829 (data as of October 1, 2026).