How many water violations are in Ingham County?

Ingham County has 3,710 total drinking water violations across 109 water systems, of which 414 are health-based violations. 99.1% of systems have at least one violation.

How many people get water from Ingham County systems?

Water systems in Ingham County serve approximately 279,137 people through 109 public water systems.

Has PFAS been detected in Ingham County water?

Under EPA UCMR5, 0 of 7 tested systems in Ingham County had at least one PFAS detection (0.0% of the UCMR5-tested subset - not of all 109 SDWIS systems).

What types of water sources supply Ingham County?

Water systems in Ingham County use GW (109 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. 11.2% of Ingham County's violations are health-based. Among counties with any SDWIS violations, this extract puts Ingham County in the middle health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

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

According to EPA SDWIS county population served used on /counties, Ingham County ranks #253 of 3,254 counties by people served, and #8 of 83 counties in Michigan. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Michigan

Ingham County, Michigan

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet MI065 · Ingham County 109 sys · 3,710 viol · #253/3254

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

VIOL-SEVERE 99.1% flagged
HEALTH-LOW 11.2% health
RANK-TOP #253/3254
PHOTO-FINISH ±0.9 pp
PFAS-CLEAN 0.0% detect
SRC-GW GW lead 100%
SYS-MID 109 systems
BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Wayne County ( -0.9 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Ingham County ranks #253 of 3,254 counties by people served, and #8 of 83 counties in Michigan. See methodology · corpus placement.

Ingham County standing, mid-flagged corpus third

Flagged-system rate 99.1% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 11.2% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #253 of 3,254 · #8 of 83 in Michigan.

Water Systems

System Name	Population	Violations	PFAS
Lansing Board of Water & Light	166,000	18	Clean
East Lansing, City Of	33,000	8	Clean
Meridian Township	25,600	9	Clean
Michigan State University	12,793	17	Clean
Mason, City Of	8,252	54	Clean
Lansing Township	5,500	10	Clean
Williamston, City Of	3,917	22	Clean
Leslie, City Of	1,872	38	-
Webberville, Village Of	1,503	46	-
Mdot - Okemos, R811	1,500	4	-
Jehovah' Witnesses Assembly Ha	1,500	11	-
Stockbridge, Village Of	1,202	22	-
Mdot - Lansing, R810	1,001	16	-
Windmill Park	950	2	-
Columbia Lakes Estates	700	15	-
Dart Container - Bldgs 2 & 5	691	38	-
Stonegate Mobile Home Community	647	2	-
Mason Manor	630	33	-
North Aurelius Elementary	525	27	-
Forest Acres Golf Course East	500	26	-
Aurelius Township	500	25	-
Dansville Hs Concessions	500	4	-
Hamlin Mobile Home Park	458	18	-
Alaiedon Elementary School	400	39	-
Wilson Talent Center	400	96	-
Robbins United Methodist Church	390	0	-
Dart Container - Bldg 6	371	11	-
Dart Container - Bldg 9	289	8	-
Eden United Brethren Church	270	20	-
Sts. Cornelius and Cyprian	250	15	-
Vevay Township Hall	250	14	-
Oaklane Golf Course	200	24	-
El Dorado Golf Course	200	22	-
Hope Baptist Church-Mason	200	94	-
Sunoco Gas	200	43	-
Clone's Country Store	200	56	-
Faith Assembly of God-Leslie	200	22	-
Fairview Corners Market	200	9	-
Webberville United Methodist Church	200	34	-
Onondaga Community Church	180	6	-
Red Cedar Evang. Free Church	177	42	-
Jh Business Center	170	77	-
Creekridge Campground	165	9	-
Ironwood Links	160	4	-
Camp Pawapi	160	8	-
V F W National Home	150	92	-
Rowley Wesleyan Church	150	44	-
Spagnuolo's Restaurant	150	34	-
Indian Hills Golf Course	150	10	-
Mason Mobile, LLC	136	26	-

Compare beyond Michigan

Mid-flagged peers for Ingham County

Cross-state counties nearest Ingham County on flagged-system share (99.1%) and cumulative violation count (3,710). 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.