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Providence County, Rhode Island — public water systems

At a glance

182 active public water systems are filed under Providence County, Rhode Island in EPA's SDWIS records, together reporting 643,368 people served. The largest is Providence-City of, which reports serving 333,142 people. 27 are community water systems serving people where they live; the other 155 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

182

Population served

643.4K

Community systems

27

Groundwater share

92.3%

How does Providence County compare with other Rhode Island counties?

Providence County has the 2nd-most active public water systems among the 5 counties listed for active Rhode Island systems in EPA records; among the 5 with 3 or more systems, the median has 47. Its systems report 643,368 people served in total, the largest county figure in the state and 55% of the statewide total. The average system here reports serving 3,535 people, about 41% above the Rhode Island average of 2,508. 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 Providence County's drinking water come from?

By primary water source, Providence County's active systems draw on groundwater (168, 92%), purchased surface water (10, 5.5%) and surface water (4, 2.2%). Overall, 92% rely mainly on groundwater (including purchased groundwater) and 7.7% on surface water, compared with 94% and 6.2% across Rhode Island. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Providence-City of, draws primarily on surface water.

What kinds of water systems operate in Providence County?

Providence County's active systems break down as 27 community systems (15%), 33 non-transient non-community systems (18%) and 122 transient non-community systems (67%). 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 (76%), local government (16%), state government (3.8%) and public/private partnership (2.7%).

The 50 largest water systems in Providence County

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Active public water systems in Providence County, Rhode Island
#Water systemCountyPopulation servedTypeSource
1Providence-City ofProvidence333,142CommunitySurface water
2Pawtucket Water Supply Board Veolia-NaProvidence98,130CommunitySurface water
3East Providence-City ofProvidence47,618CommunityPurchased surface water
4Woonsocket Water DivisionProvidence45,828CommunitySurface water
5Lincoln Water CommissionProvidence21,664CommunityPurchased surface water
6Cumberland, Town ofProvidence21,235CommunityPurchased surface water
7Greenville Water DistrictProvidence9,500CommunityPurchased surface water
8Smithfield Water Supply BoardProvidence9,460CommunityPurchased surface water
9Brown University Health-Ri HospitalProvidence8,040Non-transient non-communityPurchased surface water
10Clear River Electric and Water DistrictProvidence6,000CommunityGroundwater
11Slatersville Public SupplyProvidence3,403CommunityPurchased surface water
12Dowling VillageProvidence2,720CommunityPurchased surface water
13Brown University Health-Miriam HospitalProvidence2,401Non-transient non-communityPurchased surface water
14Ponaganset High SchoolProvidence1,600Non-transient non-communityGroundwater
15Scituate High School & Middle SchoolProvidence1,426CommunityGroundwater
16North Smithfield Jr_sr High SchoolProvidence1,200Non-transient non-communityGroundwater
17Wrights Farm Corp.Providence1,125Non-transient non-communityGroundwater
18Dinos Park & ShopProvidence999Transient non-communityGroundwater
19Bowdish Lake Camping Area, Brown 1 & 2Providence990Transient non-communityGroundwater
20Ponaganset Middle SchoolProvidence923Non-transient non-communityGroundwater
21St. Josephs ChurchProvidence880Transient non-communityGroundwater
22Rustic Tri-View Drive in Theatre-Snack BProvidence800Transient non-communityGroundwater
23Maplehill Mobile Home ParkProvidence750CommunityGroundwater
24Burrillville Middle SchoolProvidence650Non-transient non-communityGroundwater
25Colaluca Family CampgroundProvidence600Transient non-communityGroundwater
26St. Mary & St. Mena Coptic Church of RiProvidence600Transient non-communityGroundwater
27West Glocester Elementary SchoolProvidence541Non-transient non-communityGroundwater
28Eleanor Slater Hospital Zambarano UnitProvidence540CommunitySurface water
29North Scituate ElementaryProvidence500Non-transient non-communityGroundwater
30Providence-City of - WhippleProvidence471CommunityPurchased surface water
31Captain Isaac Paine SchoolProvidence460Non-transient non-communityGroundwater
32North Smithfield Elementary SchoolProvidence460Non-transient non-communityGroundwater
33Money Hill PlazaProvidence450Transient non-communityGroundwater
34Scituate Village PlazaProvidence450Non-transient non-communityGroundwater
35Pulaski Mem Park-Beach Area-Dem Div. forProvidence450Transient non-communityGroundwater
36Spring Lake Recreational FacilityProvidence450Transient non-communityGroundwater
37Fogarty Memorial SchoolProvidence427Non-transient non-communityGroundwater
38Cindys Diner & Restaurant, Inc..Providence400Transient non-communityGroundwater
39Slatersville Medical ComplexProvidence400Transient non-communityGroundwater
40Powder Mill CreameryProvidence400Transient non-communityGroundwater
41Pines Events & Promotion, LLC An0, theProvidence330Transient non-communityGroundwater
42Assados Kitchen and BarProvidence310Transient non-communityGroundwater
43Confreda Greenhouses & Farms, LLCProvidence300Transient non-communityGroundwater
44Country Chowder ShackProvidence300Transient non-communityGroundwater
45Lake Forest Health and RehabilitationProvidence268CommunityGroundwater
46Shady Acres Fry Shack LLCProvidence260Transient non-communityGroundwater
47Famous PizzaProvidence250Transient non-communityGroundwater
48Village on Chopmist Hill, theProvidence250CommunityGroundwater
49Cadys TavernProvidence250Transient non-communityGroundwater
50Merola'S Restaurant & BarProvidence250Transient non-communityGroundwater

All other water systems in Providence County (132)

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

Providence County water systems: frequently asked questions

How many public water systems are in Providence County, Rhode Island?

EPA's SDWIS records file 182 active public water systems under Providence County, Rhode Island: 27 community systems (15%), 33 non-transient non-community systems (18%) and 122 transient non-community systems (67%).

Who supplies drinking water in Providence County, RI?

The largest community water systems filed under Providence County are Providence-City of (333,142 people served), Pawtucket Water Supply Board Veolia-Na (98,130 people served) and East Providence-City of (47,618 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 Providence County's drinking water come from groundwater or surface water?

Of the 182 active public water systems in Providence County, 92% draw mainly on groundwater and 7.7% on surface water, counting purchased supplies. The largest system, Providence-City of, uses surface water.

Where can I find a water quality report for Providence 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. 27 community systems are filed under Providence 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 Providence 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 Rhode Island 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 Providence County, Rhode Island”, https://aquacensus.com/water-systems/rhode-island/providence (data as of October 1, 2026).