Public water system · NY1000238
ActiveGreenport Wd No1
At a glance
Greenport Wd No1 (PWSID NY1000238) is an active community water system in Columbia County, New York. It reports serving 4,050 people through 1,180 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,050
Service connections
1,180
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Greenport Wd No1 compare with other water systems in Columbia County?
By EPA's size categories, Greenport Wd No1 is a medium system (3,301 to 10,000 people). Columbia County has 205 active public water systems, and Greenport Wd No1 is the 4th-largest of them by population served. Its population served is about 7.7 times the county average of 529 people per system, and accounts for 3.7% of the 108,444 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 community water system reports serving 6,703 people, so Greenport Wd No1 is about 40% below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. New York has 2,281 active community water systems, 28% 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 Greenport Wd No1?
EPA lists Greenport Wd No1 as owned by a local 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. 22 of the 205 active systems in Columbia County (11%) are also owned by a local government.
Does Greenport Wd No1 have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2016. The violations listed here began between January 2016 and January 2016. By type: 12 monitoring and reporting. The contaminants or rules involved are 1,2-Dichloroethane, trans-1,2-Dichloroethylene, Ethylbenzene and Toluene. EPA lists 12 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 |
|---|---|---|---|---|
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
The 12 most recent 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.
Greenport Wd No1: frequently asked questions
Who runs Greenport Wd No1?
Greenport Wd No1 (PWSID NY1000238) is a community water system owned by a local government. It is regulated by the NY state drinking water program.
How many people does Greenport Wd No1 serve?
Greenport Wd No1 reports serving 4,050 people through 1,180 service connections in Columbia County, New York.
Where does Greenport Wd No1 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 Greenport Wd No1 have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2016. 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 Greenport Wd No1'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.
Where can I find Greenport Wd No1's water quality report?
As a community water system, Greenport Wd No1 must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Columbia County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Chatham Fair Water Distribution | Columbia | 53,700 | Transient non-community | Purchased groundwater |
| Martin Van Buren Historical House | Columbia | 10,000 | Transient non-community | Groundwater |
| Hudson City | Columbia | 6,750 | Community | Surface water |
| Taconic Hills School | Columbia | 2,500 | Non-transient non-community | Groundwater |
| Lake Taghkanic State Park | Columbia | 2,500 | Transient non-community | Surface water |
| Chatham Village | Columbia | 2,156 | 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, “Greenport Wd No1, PWSID NY1000238, New York”, https://aquacensus.com/water-systems/new-york/greenport-wd-no1-ny1000238 (data as of October 1, 2026).