Public water system · NY2211797
ActiveSouthwick Beach State Park
At a glance
Southwick Beach State Park (PWSID NY2211797) is an active transient non-community water system in Jefferson County, New York. It reports serving 520 people through 104 service connections. Its primary water source is surface water, and EPA lists it as owned by a state government. EPA's records list one violation for this system; it is not health-based, and the most recent began in September 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
520
Service connections
104
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does Southwick Beach State Park compare with other water systems in Jefferson County?
By EPA's size categories, Southwick Beach State Park is a small system (501 to 3,300 people). Jefferson County has 157 active public water systems. Its population served is about 37% below the county average of 832 people per system, and accounts for 0.4% of the 130,600 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 Southwick Beach State Park is about 3.6 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 296 New York systems (3.6%) list surface water as their primary source.
Who owns and regulates Southwick Beach State Park?
EPA lists Southwick Beach 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. 11 of the 157 active systems in Jefferson County (7%) are also owned by a state government.
Does Southwick Beach State Park have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in September 2014. By type: 1 monitoring and reporting. The contaminant or rule involved is Surface Water Treatment Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2014-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
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.
Southwick Beach State Park: frequently asked questions
Who runs Southwick Beach State Park?
Southwick Beach State Park (PWSID NY2211797) 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 Southwick Beach State Park serve?
Southwick Beach State Park reports serving 520 people through 104 service connections in Jefferson County, New York.
Where does Southwick Beach State Park get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Southwick Beach State Park 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 September 2014. 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 Southwick Beach 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 one violation for this system; it is not health-based, and the most recent began in September 2014. For current results, consult EPA ECHO, or the NY state drinking water program.
Where can I find Southwick Beach State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Southwick Beach 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 Jefferson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Fort Drum | Jefferson | 34,000 | Community | Purchased surface water |
| Watertown City | Jefferson | 27,861 | Community | Surface water |
| Leray Town Wd 1, 2, 4 | Jefferson | 7,140 | Community | Groundwater |
| Carthage Village | Jefferson | 3,600 | Community | Surface water |
| Cape Vincent Town Wd 1 & 5 | Jefferson | 2,600 | Community | Purchased surface water |
| Sackets Harbor Village | Jefferson | 2,200 | 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, “Southwick Beach State Park, PWSID NY2211797, New York”, https://aquacensus.com/water-systems/new-york/southwick-beach-state-park-ny2211797 (data as of October 1, 2026).