How many water violations are in Eaton County?

Eaton County has 3,144 total drinking water violations across 105 water systems, of which 343 are health-based violations. 95.2% of systems have at least one violation.

How many people get water from Eaton County systems?

Water systems in Eaton County serve approximately 68,299 people through 105 public water systems.

Has PFAS been detected in Eaton County water?

Under EPA UCMR5, 1 of 4 tested systems in Eaton County had at least one PFAS detection (25.0% of the UCMR5-tested subset - not of all 105 SDWIS systems).

What types of water sources supply Eaton County?

Water systems in Eaton County use GW (105 systems) as their primary water sources.

Are health-based violations serious?

Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 10.9% of Eaton County's violations are health-based. Among counties with any SDWIS violations, this extract puts Eaton County in the middle health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

Where does Eaton County sit among U.S. counties for water-system population?

According to EPA SDWIS county population served used on /counties, Eaton County ranks #761 of 3,254 counties by people served, and #21 of 83 counties in Michigan. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Michigan

Eaton County, Michigan

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet MI045 · Eaton County 105 sys · 3,144 viol · #761/3254

VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-MID · SRC-GW · SYS-MID · BOOK-FULL

VIOL-SEVERE 95.2% flagged
HEALTH-LOW 10.9% health
RANK-UPPER #761/3254
PHOTO-FINISH ±0.1 pp
PFAS-MID 25.0% detect
SRC-GW GW lead 100%
SYS-MID 105 systems
BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Barry County (+ 0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Eaton County ranks #761 of 3,254 counties by people served, and #21 of 83 counties in Michigan. See methodology · corpus placement.

Eaton County standing, mid-flagged corpus third

Flagged-system rate 95.2% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 10.9% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 25.0% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #761 of 3,254 · #21 of 83 in Michigan.

Water Systems

System Name	Population	Violations	PFAS
Charter Township of Delta	21,856	0	Clean
Charlotte, City Of	9,074	8	Detected
Grand Ledge, City Of	8,701	24	Clean
Eaton Rapids, City Of	5,340	36	Clean
Potterville, City Of	2,617	34	-
Olivet, City Of	1,758	17	-
Bellevue, Village Of	1,282	18	-
Hayes Middle School	898	13	-
Quality Dairy Company	895	62	-
Maple Valley JR & SR Hs	790	119	-
Vermontville, Village Of	780	75	-
Dimondale Express	780	5	-
Windsor Estates	718	46	-
Sunfield, Village Of	680	67	-
Grand Ledge Pub Schls-Operations Bldg	563	28	-
Dimondale Elementary School	455	141	-
Charlotte Assembly of God	400	9	-
Eaton Green Estates Subdivision	363	36	-
Morninglory Cafe	300	15	-
Liberty Church	300	21	-
The English Inn Banquet	300	33	-
Charlotte Moose Lodge	300	0	-
Mt. Hope Park	300	0	-
The English Inn South Well	300	6	-
The Northfork Estate	299	2	-
Dollar General #19999 - Mulliken	258	0	-
Sundance Chevrolet	250	143	-
Hidden Creek Farms	250	19	-
Island City Academy	246	72	-
Grand Pointe Subdivision	219	10	-
Char Lanes Inc	200	9	-
Robin's Nest	200	18	-
Funtyme Adventure Parks	200	31	-
Auto Kiniton	200	63	-
Windmill Truck Stop	200	67	-
Thrive Church	200	17	-
Adesa Auto Auction	200	33	-
Dimondale Health Care Center	177	29	-
Faith Assembly of God-Olivet	175	26	-
HI-Way Mobile Haven	168	6	-
Olivet Assembly of God	160	128	-
Ledge Meadows Golf Course	150	22	-
Swede's Restaurant	150	38	-
Oneida Gospel Church	150	36	-
Fox Memorial Park	150	18	-
Sunfield United Brethren Church	150	12	-
Willow Wood Farm	150	2	-
Church of the Nazarene-Eaton Rapids	135	14	-
Maple Knoll	125	21	-
Bellevue Ttcm Campground	125	13	-

Compare beyond Michigan

Mid-flagged peers for Eaton County

Cross-state counties nearest Eaton County on flagged-system share (95.2%) and cumulative violation count (3,144). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Compiled by PlainWater, Drinking Water Quality Editorial Process · May 15, 2026

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.