Public water system · NY5202956
ActiveTri-Valley Central School
At a glance
Tri-Valley Central School (PWSID NY5202956) is an active non-transient non-community water system in Sullivan County, New York. It reports serving 1,200 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as under public/private ownership. EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in October 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,200
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Tri-Valley Central School compare with other water systems in Sullivan County?
By EPA's size categories, Tri-Valley Central School is a small system (501 to 3,300 people). Sullivan County has 497 active public water systems. Its population served is about 4.6 times the county average of 264 people per system, and accounts for 0.9% of the 131,057 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 Tri-Valley Central School is about 179% 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 Tri-Valley Central School?
EPA lists Tri-Valley Central School as under public/private ownership. 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. 1 of the 497 active systems in Sullivan County (0.2%) are also under public/private ownership.
Does Tri-Valley Central School have drinking water violations?
EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in October 2017. The violations listed here began between July 1994 and October 2017. By type: 8 monitoring and reporting, 2 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 10 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 |
|---|---|---|---|---|
| 2017-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2008-11-03 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2006-01-10 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2003-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1998-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
All 11 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.
Tri-Valley Central School: frequently asked questions
Who runs Tri-Valley Central School?
Tri-Valley Central School (PWSID NY5202956) is a non-transient non-community water system under public/private ownership. It is regulated by the NY state drinking water program.
How many people does Tri-Valley Central School serve?
Tri-Valley Central School reports serving 1,200 people through 2 service connections in Sullivan County, New York.
Where does Tri-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 Tri-Valley Central School have any drinking water violations?
EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in October 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 Tri-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 11 violations for this system; 1 is health-based, and the most recent began in October 2017. For current results, consult EPA ECHO, or the NY state drinking water program.
Where can I find Tri-Valley Central School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Tri-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 Sullivan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Monticello Village | Sullivan | 8,000 | Community | Surface water |
| Fallsburg Who-Ls-Sf | Sullivan | 7,850 | Community | Groundwater |
| Bethel Woods Center for the Arts | Sullivan | 5,000 | Transient non-community | Groundwater |
| Liberty Village | Sullivan | 3,900 | Community | Surface water |
| Stevensville+Rfl | Sullivan | 3,250 | Community | Groundwater |
| Swan in Swan Lake | Sullivan | 2,900 | 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, “Tri-Valley Central School, PWSID NY5202956, New York”, https://aquacensus.com/water-systems/new-york/tri-valley-central-school-ny5202956 (data as of October 1, 2026).