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Hampden County, Massachusetts — public water systems

At a glance

115 active public water systems are filed under Hampden County, Massachusetts in EPA's SDWIS records, together reporting 439,404 people served. The largest is Springfield Water and Sewer Commission, which reports serving 169,170 people. 29 are community water systems serving people where they live; the other 86 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

115

Population served

439.4K

Community systems

29

Groundwater share

86.1%

How does Hampden County compare with other Massachusetts counties?

Hampden County has the 7th-most active public water systems among the 33 counties listed for active Massachusetts systems in EPA records; among the 16 with 3 or more systems, the median has 104. Its systems report 439,404 people served in total, the 9th-largest county figure in the state and 4.3% of the statewide total. The average system here reports serving 3,821 people, about 39% below the Massachusetts average of 6,275. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Hampden County's drinking water come from?

By primary water source, Hampden County's active systems draw on groundwater (98, 85%), purchased surface water (10, 8.7%), surface water (6, 5.2%) and purchased groundwater (1, 0.9%). Overall, 86% rely mainly on groundwater (including purchased groundwater) and 14% on surface water, compared with 88% and 12% across Massachusetts. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Springfield Water and Sewer Commission, draws primarily on surface water.

What kinds of water systems operate in Hampden County?

Hampden County's active systems break down as 29 community systems (25%), 14 non-transient non-community systems (12%) and 72 transient non-community systems (63%). 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. 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. 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. EPA lists their owner types as private (68%), local government (27%), state government (3.5%) and federal government (1.7%).

The 50 largest water systems in Hampden County

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Active public water systems in Hampden County, Massachusetts
#Water systemCountyPopulation servedTypeSource
1Springfield Water and Sewer CommissionHampden169,170CommunitySurface water
2Chicopee Water Dept (MWRA)Hampden55,560CommunityPurchased surface water
3Westfield Dpwwater DivisionHampden41,094CommunitySurface water
4Holyoke Water WorksHampden37,838CommunitySurface water
5West Springfield Dpw Water DivisionHampden28,835CommunityGroundwater
6Agawam Water DepartmentHampden28,692CommunityPurchased surface water
7East Longmeadow Dpw Water DeptHampden16,358CommunityPurchased surface water
8Longmeadow Water DeptHampden15,853CommunityPurchased surface water
9Wilbraham Water Dept (MWRA)Hampden8,533CommunityPurchased surface water
10Southwick Water DeptHampden7,669CommunityPurchased surface water
11Palmer Water District No.1Hampden4,789CommunitySurface water
12Monson Water and Sewer DeptHampden4,222CommunityGroundwater
13Three Rivers Fire DistrictHampden3,258CommunityGroundwater
14Thorndike Fire and Water DistrictHampden1,435CommunityPurchased groundwater
15Bondsville Fire and Water DistrictHampden1,429CommunityGroundwater
16Russell Water DeptHampden1,228CommunityGroundwater
17Westover ArbHampden950Non-transient non-communityPurchased surface water
18Camp RamahHampden900Transient non-communityGroundwater
19Chester Water DeptHampden750CommunitySurface water
20Bethlehem Baptist ChurchHampden600Transient non-communityGroundwater
21Liberty Manor Inc.Hampden500CommunityPurchased surface water
22Blandford Water DeptHampden442CommunitySurface water
23Cumberland Farms Store #2080Hampden400Transient non-communityGroundwater
24Oconnell Convenience Plus Store #13Hampden400Transient non-communityGroundwater
25Westover Golf CourseHampden350Transient non-communityGroundwater
26Brimfield Elementary SchoolHampden327Non-transient non-communityGroundwater
27Green Meadows SchoolHampden321Non-transient non-communityGroundwater
28Wildwood Property OwnersHampden300Transient non-communityGroundwater
29Thornton Burgess Middle SchoolHampden270Non-transient non-communityGroundwater
30Hampden Senior CenterHampden250Transient non-communityGroundwater
31Sunsetview Farm Camping AreaHampden250Transient non-communityGroundwater
32Holland Elementary SchoolHampden232Non-transient non-communityGroundwater
33Field Club of LongmeadowHampden201Transient non-communityGroundwater
34Greathorse Country ClubHampden201Non-transient non-communityGroundwater
35Camp KinderlandHampden200Transient non-communityGroundwater
36Roha Enterprises Ii LtdHampden200Transient non-communityGroundwater
37The Ranch Golf ClubHampden200Non-transient non-communityGroundwater
38Mk Fuel Inc.Hampden200Transient non-communityGroundwater
39Dcr Mt Tom State ReservationHampden175Transient non-communityGroundwater
40Quinebaug Cove CampsiteHampden175Transient non-communityGroundwater
41Francescos Italian RestaurantHampden155Transient non-communityGroundwater
42St Anne Country Club Inc.Hampden150Transient non-communityGroundwater
43Mt View Drive inHampden150Transient non-communityGroundwater
44Partridge Hollow CampingHampden150Transient non-communityGroundwater
45Meadowbrook Acres Mobile Home ParkHampden137CommunityGroundwater
46Chester / Middlefield Elem SchoolHampden123Non-transient non-communityGroundwater
47Prospect Mountain CampgroundHampden110Transient non-communityGroundwater
48Wales Elementary SchoolHampden108Non-transient non-communityGroundwater
49Sodom Mountain CampgroundHampden100Transient non-communityGroundwater
50Vantage at HampdenHampden100CommunityGroundwater

All other water systems in Hampden County (65)

The remaining active systems filed under Hampden County, largest first, with the population each reports serving.

Hampden County water systems: frequently asked questions

How many public water systems are in Hampden County, Massachusetts?

EPA's SDWIS records file 115 active public water systems under Hampden County, Massachusetts: 29 community systems (25%), 14 non-transient non-community systems (12%) and 72 transient non-community systems (63%).

Who supplies drinking water in Hampden County, MA?

The largest community water systems filed under Hampden County are Springfield Water and Sewer Commission (169,170 people served), Chicopee Water Dept (MWRA) (55,560 people served) and Westfield Dpwwater Division (41,094 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.

Does Hampden County's drinking water come from groundwater or surface water?

Of the 115 active public water systems in Hampden County, 86% draw mainly on groundwater and 14% on surface water, counting purchased supplies. The largest system, Springfield Water and Sewer Commission, uses surface water.

Where can I find a water quality report for Hampden County?

Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 29 community systems are filed under Hampden County, so the report to look for is the one from the system that supplies your address.

How can I check violations for a water system in Hampden County?

Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.

More Massachusetts water systems

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, “Public water systems in Hampden County, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/hampden (data as of October 1, 2026).