Public water system · NY3921974
ActivePutnam Valley Library
At a glance
Putnam Valley Library (PWSID NY3921974) is an active transient non-community water system in Putnam County, New York. It reports serving 50 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 1999.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Putnam Valley Library compare with other water systems in Putnam County?
By EPA's size categories, Putnam Valley Library 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 transient non-community water system reports serving 144 people, so Putnam Valley Library is about 65% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. New York has 5,182 active transient non-community water systems, 63% 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 Putnam Valley Library?
EPA lists Putnam Valley Library 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 Putnam Valley Library have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 1999. The violations listed here began between April 1993 and January 1999. By type: 8 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 1999-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1998-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1998-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1996-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1993-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 8 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.
Putnam Valley Library: frequently asked questions
Who runs Putnam Valley Library?
Putnam Valley Library (PWSID NY3921974) is a transient non-community water system privately owned. It is regulated by the NY state drinking water program.
How many people does Putnam Valley Library serve?
Putnam Valley Library reports serving 50 people through 1 service connection in Putnam County, New York.
Where does Putnam Valley Library 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 Putnam Valley Library have any drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 1999. 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 Putnam Valley Library'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 8 violations for this system; none is health-based, and the most recent began in January 1999. For current results, consult EPA ECHO, or the NY state drinking water program.
Where can I find Putnam Valley Library's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Putnam Valley Library is a 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, “Putnam Valley Library, PWSID NY3921974, New York”, https://aquacensus.com/water-systems/new-york/putnam-valley-library-ny3921974 (data as of October 1, 2026).