Public water system · MA1111043
ActiveSubway Granby
At a glance
Subway Granby (PWSID MA1111043) is an active transient non-community water system in Hampshire County, Massachusetts. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; none is health-based, and the most recent began in November 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Subway Granby compare with other water systems in Hampshire County?
By EPA's size categories, Subway Granby 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 Subway Granby is well 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 Subway Granby?
EPA lists Subway Granby 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 Subway Granby have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in November 2023. The violations listed here began between July 2023 and November 2023. By type: 4 reporting and 4 monitoring. The contaminant or rule involved most often is Revised Total Coliform Rule (8 of them). EPA lists 4 as addressed and 4 as archived. Addressed means the violation is not resolved or archived and is covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2023-11-10 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Addressed |
| 2023-10-10 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Addressed |
| 2023-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2023-09-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Addressed |
| 2023-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2023-08-10 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Addressed |
| 2023-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2023-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
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.
Subway Granby: frequently asked questions
Who runs Subway Granby?
Subway Granby (PWSID MA1111043) is a transient non-community water system privately owned. It is regulated by the MA state drinking water program.
How many people does Subway Granby serve?
Subway Granby reports serving 25 people through 1 service connection in Hampshire County, Massachusetts.
Where does Subway Granby 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 Subway Granby have any drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in November 2023. 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 Subway Granby'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 November 2023. For current results, consult EPA ECHO, or the MA state drinking water program.
Where can I find Subway Granby's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Subway Granby 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 |
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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, “Subway Granby, PWSID MA1111043, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/subway-granby-ma1111043 (data as of October 1, 2026).