Public water system · CT0570212

Active

Parkway School

At a glance

Parkway School (PWSID CT0570212) is an active non-transient non-community water system in Fairfield County, Connecticut. It reports serving 275 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in July 2024.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

275

Service connections

Primary source

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDCT0570212

System typeNon-transient non-community water system

Activity statusActive

Population served275

Service connections2

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyCT state drinking water program

City servedGreenwich

StateConnecticut

ZIP—

CountyFairfield County

How does Parkway School compare with other water systems in Fairfield County?

By EPA's size categories, Parkway School is a very small system (500 people or fewer). Fairfield County has 337 active public water systems. Its population served is well below the county average of 2,311 people per system, and accounts for less than 0.1% of the 778,730 people reported by systems filed under the county. Across Connecticut, the 2,363 active systems average 1,247 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Parkway School is about 36% below that figure.

What does “non-transient non-community water system” mean?

A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Connecticut has 483 active non-transient non-community water systems, 20% of the state's 2,363 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,263 Connecticut systems (96%) list groundwater as their primary source.

Who owns and regulates Parkway School?

EPA lists Parkway School as owned by a local government. The CT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 44 of the 337 active systems in Fairfield County (13%) are also owned by a local government.

Does Parkway School have drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in July 2024. The violations listed here began between April 2016 and July 2024. By type: 9 monitoring and reporting and 3 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (10 of them). 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.

Began	Violation	Contaminant or rule	Health-based	Status
2024-07-01	Required treatment not metWQP Entry Point/Tap Treatment Technique Non-Compliance · code 59	Lead and Copper Rulecode 5000	Yes	Resolved
2022-09-29	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2022-04-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2021-09-29	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2019-08-26	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2019-04-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2018-09-29	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2018-05-14	Required treatment not metFailure To Address Deficiency · code 45	Groundwater Rulecode 0700	Yes	Resolved
2018-04-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2017-09-29	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2017-04-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2016-04-01	Required treatment not metOCCT/SOWT Study/Recommendation · code 57	Lead and Copper Rulecode 5000	Yes	Resolved

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.

Parkway School: frequently asked questions

Who runs Parkway School?

Parkway School (PWSID CT0570212) is a non-transient non-community water system owned by a local government. It is regulated by the CT state drinking water program.

How many people does Parkway School serve?

Parkway School reports serving 275 people through 2 service connections in Fairfield County, Connecticut.

Where does Parkway School 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 Parkway School have any drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in July 2024. 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 Parkway School'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, 3 are health-based, and the most recent began in July 2024. For current results, consult EPA ECHO, or the CT state drinking water program.

Where can I find Parkway School's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Parkway School is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in Fairfield County

Water system	County	Population served	Type	Source
Aquarion-Eastern Fairfield County	Fairfield	351,756	Community	Surface water
Aquarion-Stamford	Fairfield	119,214	Community	Surface water
Danbury Water Department	Fairfield	62,055	Community	Surface water
Aquarion-Greenwich	Fairfield	53,297	Community	Surface water
South Norwalk Electric & Water	Fairfield	42,000	Community	Surface water
Norwalk First Taxing District	Fairfield	40,256	Community	Surface water

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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, “Parkway School, PWSID CT0570212, Connecticut”, https://aquacensus.com/water-systems/connecticut/parkway-school-ct0570212 (data as of October 1, 2026).