Public water system · NY3922417
ActiveBrewster Square
At a glance
Brewster Square (PWSID NY3922417) is an active non-transient non-community water system in Putnam County, New York. It reports serving 50 people through 12 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. 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
50
Service connections
12
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Brewster Square compare with other water systems in Putnam County?
By EPA's size categories, Brewster Square is a very small system (500 people or fewer). Putnam County has 382 active public water systems. Its population served is about 67% below the county average of 150 people per system, and accounts for less than 0.1% of the 57,156 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 non-transient non-community water system reports serving 430 people, so Brewster Square is well 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. New York has 704 active non-transient non-community water systems, 8.6% 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 Brewster Square?
EPA lists Brewster Square as privately owned. 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. 342 of the 382 active systems in Putnam County (90%) are also privately owned.
Does Brewster Square 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 Lead and Copper Rule. EPA lists 1 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1994-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Archived |
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.
Brewster Square: frequently asked questions
Who runs Brewster Square?
Brewster Square (PWSID NY3922417) is a non-transient non-community water system privately owned. It is regulated by the NY state drinking water program.
How many people does Brewster Square serve?
Brewster Square reports serving 50 people through 12 service connections in Putnam County, New York.
Where does Brewster Square 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 Brewster Square 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 Brewster Square'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 EPA ECHO, or the NY state drinking water program.
Where can I find Brewster Square's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Brewster Square 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 Putnam County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Carmel Wd 2 | Putnam | 5,000 | Community | Surface water |
| Mahopac School Complex (Falls, Mms, Mhs) | Putnam | 3,200 | Non-transient non-community | Groundwater |
| Cold Spring Village | Putnam | 2,666 | Community | Surface water |
| Brewster Village | Putnam | 2,162 | Community | Groundwater |
| Continental Village Wd | Putnam | 1,509 | Community | Purchased surface water |
| Mount Ebo Ws | Putnam | 1,500 | Community | Groundwater |
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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, “Brewster Square, PWSID NY3922417, New York”, https://aquacensus.com/water-systems/new-york/brewster-square-ny3922417 (data as of October 1, 2026).