Public water system · NY0830048
ActiveUnadilla Valley Central School
At a glance
Unadilla Valley Central School (PWSID NY0830048) is an active non-transient non-community water system in Chenango County, New York. It reports serving 1,000 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; none is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,000
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Unadilla Valley Central School compare with other water systems in Chenango County?
By EPA's size categories, Unadilla Valley Central School is a small system (501 to 3,300 people). Chenango County has 99 active public water systems. Its population served is about 3.5 times the county average of 282 people per system, and accounts for 3.6% of the 27,940 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 non-transient non-community water system reports serving 430 people, so Unadilla Valley Central School is about 133% above that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. New York has 704 active non-transient non-community water systems, 8.6% 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 Unadilla Valley Central School?
EPA lists Unadilla Valley Central School 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 99 active systems in Chenango County (22%) are also owned by a local government.
Does Unadilla Valley Central School have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in October 2024. The violations listed here began between January 2003 and October 2024. By type: 6 monitoring and reporting, 1 reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 6 as resolved and 2 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2016-08-01 | Monitoring and reportingMonitoring, Routine (IDSE) · code 30 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2016-08-01 | Monitoring and reportingMonitoring, Routine (IDSE) · code 30 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2008-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-01-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
All 8 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.
Unadilla Valley Central School: frequently asked questions
Who runs Unadilla Valley Central School?
Unadilla Valley Central School (PWSID NY0830048) is a non-transient non-community water system owned by a local government. It is regulated by the NY state drinking water program.
How many people does Unadilla Valley Central School serve?
Unadilla Valley Central School reports serving 1,000 people through 1 service connection in Chenango County, New York.
Where does Unadilla Valley Central School 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 Unadilla Valley Central School have any drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in October 2024. 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 Unadilla Valley Central School'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 8 violations for this system; none is health-based, and the most recent began in October 2024. For current results, consult EPA ECHO, or the NY state drinking water program.
Where can I find Unadilla Valley Central School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Unadilla Valley Central School is a non-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 Chenango County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Norwich City | Chenango | 8,000 | Community | Surface water |
| Greene Village | Chenango | 1,800 | Community | Groundwater |
| Oxford Village | Chenango | 1,738 | Community | Groundwater |
| Bainbridge Village | Chenango | 1,550 | Community | Groundwater |
| Sherburne Village | Chenango | 1,531 | Community | Groundwater |
| New Berlin Village | Chenango | 1,500 | 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, “Unadilla Valley Central School, PWSID NY0830048, New York”, https://aquacensus.com/water-systems/new-york/unadilla-valley-central-school-ny0830048 (data as of October 1, 2026).