Public water system · NY4330004
Active536 Route 9w
At a glance
536 Route 9w (PWSID NY4330004) is an active transient non-community water system in Rockland County, New York. It reports serving 60 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; all are health-based, and the most recent began in February 2006.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
60
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does 536 Route 9w compare with other water systems in Rockland County?
By EPA's size categories, 536 Route 9w is a very small system (500 people or fewer). Rockland County has 50 active public water systems. Its population served is well below the county average of 6,530 people per system, and accounts for less than 0.1% of the 326,504 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 536 Route 9w is about 58% 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 536 Route 9w?
EPA lists 536 Route 9w 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. 41 of the 50 active systems in Rockland County (82%) are also privately owned.
Does 536 Route 9w have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in February 2006. The violations listed here began between April 2001 and February 2006. By type: 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 2006-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 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.
536 Route 9w: frequently asked questions
Who runs 536 Route 9w?
536 Route 9w (PWSID NY4330004) is a transient non-community water system privately owned. It is regulated by the NY state drinking water program.
How many people does 536 Route 9w serve?
536 Route 9w reports serving 60 people through 1 service connection in Rockland County, New York.
Where does 536 Route 9w 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 536 Route 9w have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in February 2006. 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 536 Route 9w'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 2 violations for this system; all are health-based, and the most recent began in February 2006. For current results, consult EPA ECHO, or the NY state drinking water program.
Where can I find 536 Route 9w's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. 536 Route 9w 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 Rockland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Veolia Water New York | Rockland | 270,000 | Community | Surface water |
| Lake Welch + Sebago Beach W.S. | Rockland | 15,000 | Transient non-community | Purchased surface water |
| Nyack Village Water Supply | Rockland | 14,700 | Community | Surface water |
| Suffern Village | Rockland | 12,000 | Community | Groundwater |
| Yeshiva Washington Ave | Rockland | 1,000 | Non-transient non-community | Groundwater |
| West Maple Farm | Rockland | 1,000 | Transient non-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, “536 Route 9w, PWSID NY4330004, New York”, https://aquacensus.com/water-systems/new-york/536-route-9w-ny4330004 (data as of October 1, 2026).