Public water system · MA1159000
ActiveLongmeadow Water Dept
At a glance
Longmeadow Water Dept (PWSID MA1159000) is an active community water system in Hampden County, Massachusetts. It reports serving 15,853 people through 5,723 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, 9 are health-based, and the most recent began in July 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
15,853
Service connections
5,723
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Longmeadow Water Dept compare with other water systems in Hampden County?
By EPA's size categories, Longmeadow Water Dept is a large system (10,001 to 100,000 people). Hampden County has 115 active public water systems. Its population served is about 4.1 times the county average of 3,821 people per system, and accounts for 3.6% of the 439,404 people reported by systems filed under the county. Across Massachusetts, the 1,636 active systems average 6,275 people each. Nationally, the average active community water system reports serving 6,703 people, so Longmeadow Water Dept is about 137% above 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. Massachusetts has 531 active community water systems, 32% of the state's 1,636 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 126 Massachusetts systems (7.7%) list purchased surface water as their primary source.
Who owns and regulates Longmeadow Water Dept?
EPA lists Longmeadow Water Dept as owned by a local government. 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. 31 of the 115 active systems in Hampden County (27%) are also owned by a local government.
Does Longmeadow Water Dept have drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in July 2024. The violations listed here began between March 2019 and July 2024. By type: 8 contaminant level above the legal limit, 3 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Haloacetic acids (HAA5) (5 of them). EPA lists 12 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-07-10 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2020-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2020-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2019-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2019-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2019-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2019-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2019-06-27 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-06-27 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2019-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2019-03-16 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | 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.
Longmeadow Water Dept: frequently asked questions
Who runs Longmeadow Water Dept?
Longmeadow Water Dept (PWSID MA1159000) is a community water system owned by a local government. It is regulated by the MA state drinking water program.
How many people does Longmeadow Water Dept serve?
Longmeadow Water Dept reports serving 15,853 people through 5,723 service connections in Hampden County, Massachusetts.
Where does Longmeadow Water Dept 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 Longmeadow Water Dept have any drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in July 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 Longmeadow Water Dept'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, 9 are health-based, and the most recent began in July 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the MA state drinking water program.
Where can I find Longmeadow Water Dept's water quality report?
As a community water system, Longmeadow Water Dept 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 Hampden County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Springfield Water and Sewer Commission | Hampden | 169,170 | Community | Surface water |
| Chicopee Water Dept (MWRA) | Hampden | 55,560 | Community | Purchased surface water |
| Westfield Dpwwater Division | Hampden | 41,094 | Community | Surface water |
| Holyoke Water Works | Hampden | 37,838 | Community | Surface water |
| West Springfield Dpw Water Division | Hampden | 28,835 | Community | Groundwater |
| Agawam Water Department | Hampden | 28,692 | Community | Purchased surface water |
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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, “Longmeadow Water Dept, PWSID MA1159000, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/longmeadow-water-dept-ma1159000 (data as of October 1, 2026).