Public water system · NY4930001
ActiveJunius Water District #1
At a glance
Junius Water District #1 (PWSID NY4930001) is an active community water system in Seneca County, New York. It reports serving 400 people through 84 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, none is health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
400
Service connections
84
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Junius Water District #1 compare with other water systems in Seneca County?
By EPA's size categories, Junius Water District #1 is a very small system (500 people or fewer). Seneca County has 87 active public water systems. Its population served is about 25% above the county average of 319 people per system, and accounts for 1.4% of the 27,760 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 Junius 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 Junius Water District #1?
EPA lists Junius 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. 24 of the 87 active systems in Seneca County (28%) are also owned by a local government.
Does Junius Water District #1 have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2025. The violations listed here began between April 1996 and December 2025. By type: 7 public notice, recordkeeping or other, 2 monitoring, 2 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 11 as resolved and 1 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 |
|---|---|---|---|---|
| 2025-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2021-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 1997-10-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1997-09-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1996-10-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1996-05-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1996-04-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1996-04-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1996-04-01 | 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.
Junius Water District #1: frequently asked questions
Who runs Junius Water District #1?
Junius Water District #1 (PWSID NY4930001) is a community water system owned by a local government. It is regulated by the NY state drinking water program.
How many people does Junius Water District #1 serve?
Junius Water District #1 reports serving 400 people through 84 service connections in Seneca County, New York.
Where does Junius 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 Junius Water District #1 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 December 2025. 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 Junius 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, none is health-based, and the most recent began in December 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.
Where can I find Junius Water District #1's water quality report?
As a community water system, Junius 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 Seneca County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Seneca Falls | Seneca | 9,400 | Community | Surface water |
| Waterloo Village | Seneca | 7,000 | Community | Surface water |
| Seneca County Water District #1 | Seneca | 1,820 | Community | Purchased surface water |
| Border City Water District | Seneca | 1,600 | Community | Purchased surface water |
| Ovid Village | Seneca | 990 | Community | Surface water |
| Interlaken Village | Seneca | 650 | 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, “Junius Water District #1, PWSID NY4930001, New York”, https://aquacensus.com/water-systems/new-york/junius-water-district-1-ny4930001 (data as of October 1, 2026).