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Public water system · NY2902845

Active

Plainview Wd

At a glance

Plainview Wd (PWSID NY2902845) is an active community water system in Nassau County, New York. It reports serving 34,000 people through 10,329 service connections. Its primary water source is groundwater, and EPA lists it as under public/private ownership. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2017.

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

Population served

34,000

Service connections

10,329

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDNY2902845
System typeCommunity water system
Activity statusActive
Population served34,000
Service connections10,329
Primary water sourceGroundwater
Owner typePublic/private partnership
Primacy agencyNY state drinking water program
City servedOyster Bay (T)
StateNew York
ZIP—
CountyNassau County

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

By EPA's size categories, Plainview Wd is a large system (10,001 to 100,000 people). Nassau County has 44 active public water systems. Its population served is roughly in line with the county average of 31,534 people per system, and accounts for 2.5% 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 Plainview Wd is about 5.1 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 Plainview Wd?

EPA lists Plainview Wd as under public/private ownership. 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. 16 of the 44 active systems in Nassau County (36%) are also under public/private ownership.

Does Plainview Wd have drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2017. The violations listed here began between July 2011 and July 2017. By type: 10 monitoring and reporting and 2 contaminant level above the legal limit. The contaminants or rules involved are cis-1,2-Dichloroethylene, Tetrachloroethylene, Picloram and Hexachlorocyclopentadiene. EPA lists 12 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
2017-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02cis-1,2-Dichloroethylenecode 2380YesResolved
2017-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Tetrachloroethylenecode 2987YesResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Picloramcode 2040NoResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Hexachlorocyclopentadienecode 2042NoResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Aldicarb sulfonecode 2044NoResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Aldicarbcode 2047NoResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Heptachlorcode 2065NoResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Alachlor (Lasso)code 2051NoResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Oxamylcode 2036NoResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Simazinecode 2037NoResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Di(2-ethylhexyl) phthalatecode 2039NoResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Dinosebcode 2041NoResolved

The 12 most recent violations in EPA's records, newest first.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.

Plainview Wd: frequently asked questions

Who runs Plainview Wd?

Plainview Wd (PWSID NY2902845) is a community water system under public/private ownership. It is regulated by the NY state drinking water program.

How many people does Plainview Wd serve?

Plainview Wd reports serving 34,000 people through 10,329 service connections in Nassau County, New York.

Where does Plainview 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 Plainview Wd have any drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2017. 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 Plainview 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. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.

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

As a community water system, Plainview 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, “Plainview Wd, PWSID NY2902845, New York”, https://aquacensus.com/water-systems/new-york/plainview-wd-ny2902845 (data as of October 1, 2026).