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Public water system · NY2902850

Active

Glenwood Wd

At a glance

Glenwood Wd (PWSID NY2902850) is an active community water system in Nassau County, New York. It reports serving 1,000 people through 202 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 1994.

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

Population served

1,000

Service connections

202

Primary source

GWP

Purchased groundwater

System type

CWS

Community water system

System record

PWSIDNY2902850
System typeCommunity water system
Activity statusActive
Population served1,000
Service connections202
Primary water sourcePurchased groundwater
Owner typeLocal government
Primacy agencyNY state drinking water program
City servedOyster Bay (T)
StateNew York
ZIP—
CountyNassau County

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

By EPA's size categories, Glenwood Wd is a small system (501 to 3,300 people). Nassau County has 44 active public water systems. Its population served is well below the county average of 31,534 people per system, and accounts for less than 0.1% 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 Glenwood Wd is well below 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 114 New York systems (1.4%) list purchased groundwater as their primary source.

Who owns and regulates Glenwood Wd?

EPA lists Glenwood 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 Glenwood Wd have drinking water violations?

EPA's records list one violation for this system; it is not health-based, and the most recent began in January 1994. By type: 1 monitoring and reporting. The contaminant or rule involved is Combined Radium (-226 and -228). 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
1994-01-01Monitoring and reportingMonitoring, Regular · code 03Combined Radium (-226 and -228)code 4010NoResolved

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.

Glenwood Wd: frequently asked questions

Who runs Glenwood Wd?

Glenwood Wd (PWSID NY2902850) is a community water system owned by a local government. It is regulated by the NY state drinking water program.

How many people does Glenwood Wd serve?

Glenwood Wd reports serving 1,000 people through 202 service connections in Nassau County, New York.

Where does Glenwood Wd get its water?

EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.

Does Glenwood Wd have any drinking water violations?

EPA's records list one violation for this system; it is not health-based, and the most recent began in January 1994. 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 Glenwood 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 not health-based, and the most recent began in January 1994. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.

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

As a community water system, Glenwood 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, “Glenwood Wd, PWSID NY2902850, New York”, https://aquacensus.com/water-systems/new-york/glenwood-wd-ny2902850 (data as of October 1, 2026).