Public water system · NY2800141
ActiveNelliston (V) Water Works
At a glance
Nelliston (V) Water Works (PWSID NY2800141) is an active community water system in Montgomery County, New York. It reports serving 535 people through 204 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in September 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
535
Service connections
204
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Nelliston (V) Water Works compare with other water systems in Montgomery County?
By EPA's size categories, Nelliston (V) Water Works is a small system (501 to 3,300 people). Montgomery County has 53 active public water systems. Its population served is about 27% below the county average of 734 people per system, and accounts for 1.4% of the 38,877 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 Nelliston (V) Water Works is well 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 399 New York systems (4.9%) list purchased surface water as their primary source.
Who owns and regulates Nelliston (V) Water Works?
EPA lists Nelliston (V) Water Works 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. 16 of the 53 active systems in Montgomery County (30%) are also owned by a local government.
Does Nelliston (V) Water Works have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in September 2017. The violations listed here began between July 2004 and September 2017. By type: 6 public notice, recordkeeping or other, 4 monitoring and reporting, 1 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). 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 |
|---|---|---|---|---|
| 2017-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2012-08-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 2010-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2010-04-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2008-06-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 2007-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-06-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 2006-09-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 2005-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | 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.
Nelliston (V) Water Works: frequently asked questions
Who runs Nelliston (V) Water Works?
Nelliston (V) Water Works (PWSID NY2800141) is a community water system owned by a local government. It is regulated by the NY state drinking water program.
How many people does Nelliston (V) Water Works serve?
Nelliston (V) Water Works reports serving 535 people through 204 service connections in Montgomery County, New York.
Where does Nelliston (V) Water Works get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Nelliston (V) Water Works have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in September 2017. 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 Nelliston (V) Water Works' 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, one is health-based, and the most recent began in September 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.
Where can I find Nelliston (V) Water Works' water quality report?
As a community water system, Nelliston (V) Water Works 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 Montgomery County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Amsterdam (C) | Montgomery | 20,700 | Community | Surface water |
| Amsterdam (T) | Montgomery | 3,000 | Community | Purchased surface water |
| Canajoharie (V) Water Works | Montgomery | 2,300 | Community | Surface water |
| Fort Plain (V) Water Works | Montgomery | 2,250 | Community | Surface water |
| Nys Thruway-Pattersonville Service Area | Montgomery | 2,221 | Non-transient non-community | Purchased groundwater |
| St. Johnsville Village Water Works | Montgomery | 1,700 | 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, “Nelliston (V) Water Works, PWSID NY2800141, New York”, https://aquacensus.com/water-systems/new-york/nelliston-v-water-works-ny2800141 (data as of October 1, 2026).