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Livingston County, Michigan — public water systems

At a glance

425 active public water systems are filed under Livingston County, Michigan in EPA's SDWIS records, together reporting 133,320 people served. The largest is Mhog Sewer & Water Authority, which reports serving 17,046 people. 43 are community water systems serving people where they live; the other 382 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

425

Population served

133.3K

Community systems

43

Groundwater share

100%

How does Livingston County compare with other Michigan counties?

Livingston County has the 2nd-most active public water systems among the 131 counties listed for active Michigan systems in EPA records; among the 88 with 3 or more systems, the median has 92. Its systems report 133,320 people served in total, the 13th-largest county figure in the state and 1.5% of the statewide total. The average system here reports serving 314 people, about 63% below the Michigan average of 847. 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 Livingston County's drinking water come from?

By primary water source, Livingston County's active systems draw on groundwater (425, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 97% and 3.1% across Michigan. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Mhog Sewer & Water Authority, draws primarily on groundwater.

What kinds of water systems operate in Livingston County?

Livingston County's active systems break down as 43 community systems (10%), 120 non-transient non-community systems (28%) and 262 transient non-community systems (62%). 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 (91%), state government (6.4%) and local government (2.8%).

The 50 largest water systems in Livingston County

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Active public water systems in Livingston County, Michigan
#Water systemCountyPopulation servedTypeSource
1Mhog Sewer & Water AuthorityLivingston17,046CommunityGroundwater
2Brighton, City ofLivingston10,210CommunityGroundwater
3Howell, City ofLivingston9,914CommunityGroundwater
4Livingston Community Water AuthorityLivingston4,152CommunityGroundwater
5Hartland TownshipLivingston3,022CommunityGroundwater
6Chilson Commons / KrogerLivingston3,000Non-transient non-communityGroundwater
7Fowlerville, Village ofLivingston2,951CommunityGroundwater
8Pinckney, Village ofLivingston2,353CommunityGroundwater
9Oak PointeLivingston2,000CommunityGroundwater
10Mcdonalds #4991Livingston1,900Non-transient non-communityGroundwater
11Cidermill CrossingsLivingston1,863CommunityGroundwater
12Fonda Lake Water AuthorityLivingston1,705CommunityGroundwater
13Hartland MeadowsLivingston1,543CommunityGroundwater
14Cornerstone Christian SchoolLivingston1,500Non-transient non-communityGroundwater
15Waldenwoods-Campground-1&2Livingston1,263Transient non-communityGroundwater
16Sylvan Glen EstatesLivingston1,150CommunityGroundwater
17Hidden Lakes of Green OaksLivingston1,148CommunityGroundwater
18Pinckney Schools - High SchoolLivingston1,135Non-transient non-communityGroundwater
19Tyrone WoodsLivingston1,088CommunityGroundwater
20Handy Township - Red Cedars CrossingLivingston1,030CommunityGroundwater
21Mount Brighton Ski ResortLivingston950Transient non-communityGroundwater
22Brighton Schools - Maltby IntermediateLivingston950Non-transient non-communityGroundwater
23Brighton Schools - Scranton MiddleLivingston920Non-transient non-communityGroundwater
24Green Oak Twp - Centennial FarmsLivingston900CommunityGroundwater
25Spicer'S Cider Mill and WineryLivingston900Transient non-communityGroundwater
26St. John Catholic Church - HowellLivingston900Transient non-communityGroundwater
27Pinckney Schools - Fine Art + NavigatorLivingston850Non-transient non-communityGroundwater
28Lake Chemung Outdoor ResortLivingston840CommunityGroundwater
29Hartland Schools - Farms Middle SchoolLivingston830Non-transient non-communityGroundwater
30Coventry Woods MhcLivingston823CommunityGroundwater
31Church of God -Tyrone Valley (Cafeteria)Livingston800Transient non-communityGroundwater
32Millpointe of HartlandLivingston724CommunityGroundwater
33St. Mary Magdalen Catholic ChurchLivingston700Non-transient non-communityGroundwater
34Brighton Schools - Hornung ElementaryLivingston620Non-transient non-communityGroundwater
35Woodland Center Correctional FacilityLivingston607CommunityGroundwater
36Brighton Schools - Hilton ElementaryLivingston576Non-transient non-communityGroundwater
37St. Mary'S Catholic Church & SchoolLivingston575Non-transient non-communityGroundwater
38Cedar Creek CenterLivingston565Transient non-communityGroundwater
39Lakeview PlazaLivingston550Non-transient non-communityGroundwater
40Brighton Schools - Hawkins ElementaryLivingston550Non-transient non-communityGroundwater
41Brummer ElementaryLivingston550Non-transient non-communityGroundwater
42Brighton Schools - Spencer ElementaryLivingston550Non-transient non-communityGroundwater
43Pinckney Schools - Pathfinder SchoolLivingston550Non-transient non-communityGroundwater
44Hartland Schools - Lakes ElementaryLivingston546Non-transient non-communityGroundwater
45Hartland Schools - Village ElementaryLivingston510Non-transient non-communityGroundwater
46Northridge Church of BrightonLivingston500Transient non-communityGroundwater
47Hamburg Dairy QueenLivingston500Transient non-communityGroundwater
48Arby'S - Whitmore Lake #6144Livingston500Transient non-communityGroundwater
49Lake Chemung Outdoor ResortLivingston500Transient non-communityGroundwater
50Fowlerville Fairgrounds - CampgroundLivingston500Transient non-communityGroundwater

All other water systems in Livingston County (375)

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

Livingston County water systems: frequently asked questions

How many public water systems are in Livingston County, Michigan?

EPA's SDWIS records file 425 active public water systems under Livingston County, Michigan: 43 community systems (10%), 120 non-transient non-community systems (28%) and 262 transient non-community systems (62%).

Who supplies drinking water in Livingston County, MI?

The largest community water systems filed under Livingston County are Mhog Sewer & Water Authority (17,046 people served), City of Brighton (10,210 people served) and City of Howell (9,914 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 Livingston County's drinking water come from groundwater or surface water?

Of the 425 active public water systems in Livingston County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Mhog Sewer & Water Authority, uses groundwater.

Where can I find a water quality report for Livingston 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. 43 community systems are filed under Livingston 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 Livingston 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 Michigan 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 Livingston County, Michigan”, https://aquacensus.com/water-systems/michigan/livingston (data as of October 1, 2026).