Public water system · NY4111807
ActiveGrafton Lakes State Park
At a glance
Grafton Lakes State Park (PWSID NY4111807) is an active transient non-community water system in Rensselaer County, New York. It reports serving 2,500 people through 50 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,500
Service connections
50
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Grafton Lakes State Park compare with other water systems in Rensselaer County?
By EPA's size categories, Grafton Lakes State Park is a small system (501 to 3,300 people). Rensselaer County has 146 active public water systems. Its population served is about 170% above the county average of 926 people per system, and accounts for 1.9% of the 135,123 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 Grafton Lakes State Park is about 17 times 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 Grafton Lakes State Park?
EPA lists Grafton Lakes State Park as owned by a state government. 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. 5 of the 146 active systems in Rensselaer County (3.4%) are also owned by a state government.
Does Grafton Lakes State Park have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2021. The violations listed here began between January 2002 and January 2021. By type: 2 monitoring and reporting. The contaminant or rule involved most often is Nitrate (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 |
|---|---|---|---|---|
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | 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.
Grafton Lakes State Park: frequently asked questions
Who runs Grafton Lakes State Park?
Grafton Lakes State Park (PWSID NY4111807) is a transient non-community water system owned by a state government. It is regulated by the NY state drinking water program.
How many people does Grafton Lakes State Park serve?
Grafton Lakes State Park reports serving 2,500 people through 50 service connections in Rensselaer County, New York.
Where does Grafton Lakes State Park 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 Grafton Lakes State Park have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2021. 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 Grafton Lakes State Park'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; none is health-based, and the most recent began in January 2021. For current results, consult EPA ECHO, or the NY state drinking water program.
Where can I find Grafton Lakes State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Grafton Lakes State Park 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 Rensselaer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Troy City Pws | Rensselaer | 51,401 | Community | Surface water |
| East Greenbush General W.D. | Rensselaer | 15,843 | Community | Purchased surface water |
| North Greenbush Consolidated District | Rensselaer | 10,226 | Community | Purchased surface water |
| Rensselaer City Pws | Rensselaer | 9,300 | Community | Purchased surface water |
| Brunswick Consolidated Water District | Rensselaer | 7,050 | Community | Purchased surface water |
| Hoosick Falls (V) Pws | Rensselaer | 4,925 | 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, “Grafton Lakes State Park, PWSID NY4111807, New York”, https://aquacensus.com/water-systems/new-york/grafton-lakes-state-park-ny4111807 (data as of October 1, 2026).