Public water system · MA1111032
ActiveChateau Harmony
At a glance
Chateau Harmony (PWSID MA1111032) is an active transient non-community water system in Hampshire County, Massachusetts. It reports serving 50 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Chateau Harmony compare with other water systems in Hampshire County?
By EPA's size categories, Chateau Harmony is a very small system (500 people or fewer). Hampshire County has 94 active public water systems. Its population served is well below the county average of 1,556 people per system, and accounts for less than 0.1% of the 146,285 people reported by systems filed under the county. Across Massachusetts, the 1,636 active systems average 6,275 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Chateau Harmony is about 65% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Massachusetts has 859 active transient non-community water systems, 53% of the state's 1,636 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,354 Massachusetts systems (83%) list groundwater as their primary source.
Who owns and regulates Chateau Harmony?
EPA lists Chateau Harmony as privately owned. The MA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 62 of the 94 active systems in Hampshire County (66%) are also privately owned.
Does Chateau Harmony have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2005. The violations listed here began between July 1995 and October 2005. By type: 4 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 5 as archived. 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 |
|---|---|---|---|---|
| 2005-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1996-09-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1996-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1996-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 5 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.
Chateau Harmony: frequently asked questions
Who runs Chateau Harmony?
Chateau Harmony (PWSID MA1111032) is a transient non-community water system privately owned. It is regulated by the MA state drinking water program.
How many people does Chateau Harmony serve?
Chateau Harmony reports serving 50 people through 1 service connection in Hampshire County, Massachusetts.
Where does Chateau Harmony 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 Chateau Harmony have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2005. 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 Chateau Harmony'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 5 violations for this system; 1 is health-based, and the most recent began in October 2005. For current results, consult EPA ECHO, or the MA state drinking water program.
Where can I find Chateau Harmony's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Chateau Harmony is a 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 Hampshire County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Amherst Dpw Water Division | Hampshire | 39,263 | Community | Surface water |
| Northampton Water Division | Hampshire | 29,571 | Community | Surface water |
| Easthampton Water Dept | Hampshire | 16,211 | Community | Groundwater |
| South Hadley Fd #1 (MWRA) | Hampshire | 14,800 | Community | Purchased surface water |
| Ware Water Dept | Hampshire | 10,066 | Community | Groundwater |
| South Hadley Fire District #2 Water Dept | Hampshire | 6,200 | 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, “Chateau Harmony, PWSID MA1111032, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/chateau-harmony-ma1111032 (data as of October 1, 2026).