Public water system · NY4700101
ActiveWarnerville Water District # 1
At a glance
Warnerville Water District # 1 (PWSID NY4700101) is an active community water system in Schoharie County, New York. It reports serving 1,300 people through 200 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 January 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,300
Service connections
200
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Warnerville Water District # 1 compare with other water systems in Schoharie County?
By EPA's size categories, Warnerville Water District # 1 is a small system (501 to 3,300 people). Schoharie County has 66 active public water systems, and Warnerville Water District # 1 is the 3rd-largest of them by population served. Its population served is about 4.2 times the county average of 306 people per system, and accounts for 6.4% of the 20,190 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 Warnerville Water District # 1 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 Warnerville Water District # 1?
EPA lists Warnerville Water District # 1 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. 15 of the 66 active systems in Schoharie County (23%) are also owned by a local government.
Does Warnerville Water District # 1 have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2017. The violations listed here began between September 2010 and January 2017. By type: 8 monitoring and reporting, 3 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (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 |
|---|---|---|---|---|
| 2017-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2013-09-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2011-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2011-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2010-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-10-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 2010-09-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | 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.
Warnerville Water District # 1: frequently asked questions
Who runs Warnerville Water District # 1?
Warnerville Water District # 1 (PWSID NY4700101) is a community water system owned by a local government. It is regulated by the NY state drinking water program.
How many people does Warnerville Water District # 1 serve?
Warnerville Water District # 1 reports serving 1,300 people through 200 service connections in Schoharie County, New York.
Where does Warnerville Water District # 1 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 Warnerville Water District # 1 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 January 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 Warnerville Water District # 1'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, one is health-based, and the most recent began in January 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 Warnerville Water District # 1's water quality report?
As a community water system, Warnerville Water District # 1 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 Schoharie County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Cobleskill Village | Schoharie | 4,678 | Community | Surface water |
| Middleburgh Village | Schoharie | 1,500 | Community | Groundwater |
| Schoharie Village | Schoharie | 922 | Community | Groundwater under influence of surface water |
| Richmondville Village | Schoharie | 918 | Community | Surface water |
| C-R High School | Schoharie | 800 | Non-transient non-community | Groundwater |
| Oorah Inc. (Boys Zone) | Schoharie | 600 | Transient non-community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Warnerville Water District # 1, PWSID NY4700101, New York”, https://aquacensus.com/water-systems/new-york/warnerville-water-district-1-ny4700101 (data as of October 1, 2026).