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Public water system · NY5130124

Active

Moonflower

At a glance

Moonflower (PWSID NY5130124) is an active transient non-community water system in Suffolk County, New York. It reports serving 50 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; none is health-based, and the most recent began in February 2023.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

50

Service connections

2

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDNY5130124
System typeTransient non-community water system
Activity statusActive
Population served50
Service connections2
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyNY state drinking water program
City servedSouthold (T)
StateNew York
ZIP—
CountySuffolk County

How does Moonflower compare with other water systems in Suffolk County?

By EPA's size categories, Moonflower is a very small system (500 people or fewer). Suffolk County has 151 active public water systems. Its population served is well below the county average of 9,192 people per system, and accounts for less than 0.1% of the 1,387,972 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 Moonflower 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 Moonflower?

EPA lists Moonflower 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. 105 of the 151 active systems in Suffolk County (70%) are also privately owned.

Does Moonflower have drinking water violations?

EPA's records list 3 violations for this system; none is health-based, and the most recent began in February 2023. The violations listed here began between July 2010 and February 2023. By type: 2 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 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.

BeganViolationContaminant or ruleHealth-basedStatus
2023-02-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2015-06-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2010-07-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved

All 3 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.

Moonflower: frequently asked questions

Who runs Moonflower?

Moonflower (PWSID NY5130124) is a transient non-community water system privately owned. It is regulated by the NY state drinking water program.

How many people does Moonflower serve?

Moonflower reports serving 50 people through 2 service connections in Suffolk County, New York.

Where does Moonflower 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 Moonflower have any drinking water violations?

EPA's records list 3 violations for this system; none is health-based, and the most recent began in February 2023. 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 Moonflower'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 3 violations for this system; none is health-based, and the most recent began in February 2023. For current results, consult EPA ECHO, or the NY state drinking water program.

Where can I find Moonflower's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Moonflower 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 Suffolk County

Water systemCountyPopulation servedTypeSource
Suffolk County Water AuthoritySuffolk1,100,000CommunityGroundwater
South Huntington Water DistrictSuffolk81,760CommunityGroundwater
Greenlawn Water DistrictSuffolk42,000CommunityGroundwater
Riverhead Water DistrictSuffolk35,000CommunityGroundwater
Dix Hills Water DistrictSuffolk34,522CommunityGroundwater
Smithtown Water DistrictSuffolk19,635CommunityPurchased 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, “Moonflower, PWSID NY5130124, New York”, https://aquacensus.com/water-systems/new-york/moonflower-ny5130124 (data as of October 1, 2026).