How many water violations are in Kent County?

Kent County has 4,140 total drinking water violations across 407 water systems, of which 1,105 are health-based violations. 72.0% of systems have at least one violation.

How many people get water from Kent County systems?

Water systems in Kent County serve approximately 616,574 people through 407 public water systems.

Has PFAS been detected in Kent County water?

Under EPA UCMR5, 2 of 14 tested systems in Kent County had at least one PFAS detection (14.3% of the UCMR5-tested subset - not of all 407 SDWIS systems).

What types of water sources supply Kent County?

Water systems in Kent County use GW (397 systems), SW (10 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. 26.7% of Kent County's violations are health-based. Among counties with any SDWIS violations, this extract puts Kent County in the higher health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

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

According to EPA SDWIS county population served used on /counties, Kent County ranks #114 of 3,254 counties by people served, and #4 of 83 counties in Michigan. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Michigan

Kent County, Michigan

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet MI081 · Kent County 407 sys · 4,140 viol · #114/3254

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

VIOL-SEVERE 72.0% flagged
HEALTH-MID 26.7% health
RANK-TOP #114/3254
PHOTO-FINISH ±0.3 pp
PFAS-LOW 14.3% detect
SRC-GW GW lead 98%
SYS-LARGE 407 systems
BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Benzie County ( -0.3 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Kent County ranks #114 of 3,254 counties by people served, and #4 of 83 counties in Michigan. See methodology · corpus placement.

Kent County standing, lower-flagged corpus third

Flagged-system rate 72.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 26.7% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 14.3% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #114 of 3,254 · #4 of 83 in Michigan.

Water Systems

System Name	Population	Violations	PFAS
Grand Rapids	273,005	2	Clean
Wyoming	72,125	3	Clean
Plainfield Township	42,271	12	Detected
Byron-Gaines Utility Authority	37,464	0	Clean
Kentwood	36,072	9	Clean
Grandville	15,948	10	Clean
East Grand Rapids	11,637	4	Clean
Rockford	7,160	12	Clean
Ada Township	7,068	15	Clean
Caledonia Township	4,573	0	Clean
Lowell	4,150	6	Clean
Sparta	4,140	41	Clean
Lake Bella Vista	3,584	31	Detected
Cedar Springs	3,520	18	Clean
Meijer #248 Solon Twp	3,250	24	-
Schwallier's Country Basket	2,400	4	-
Speedway 6272 / Emro Marketing	2,126	1	-
Lowell Township	1,958	19	-
Mdot - Rockford, R525	1,814	24	-
Campau Corner	1,500	4	-
Lowell Mobil Mart	1,450	5	-
Ada Bible Church	1,410	0	-
Caledonia D&w Fresh Market	1,300	28	-
Ago - Tow's Country Store #43	1,110	17	-
Vergennes J&h Family Store	1,067	0	-
Ago - Cottage Market #33	1,000	0	-
Cannonsburg Ski Area -Main Lodge	900	3	-
Log Cabin Grocery	900	100	-
East Rockford Middle School	884	30	-
Oaks of Rockford	860	12	-
Corewell Health Blodgett Hospital	810	0	-
Bella Vista Church	800	0	-
Cedar Rock Mobil Mart	800	4	-
Nuvu Fuels #2	800	22	-
Alto Marathon	800	7	-
Kent City Elementary Complex	788	55	-
Kent City High & Middle School	740	35	-
Key Heights Mobile Village	715	23	-
Aldi #102	712	0	-
Kent City Baptist Church	708	0	-
Northern Springs Mobil	700	4	-
Caledonia Bp	650	42	-
Saskatoon Golf Club Inc	620	7	-
Bostwick Lake Inn	612	23	-
Caledonia Center Mall	600	7	-
Cannonsburg Grist Mill	600	0	-
Calvary Baptist Church-Greenville	600	0	-
Brinks Ice Cream Express	600	7	-
Boulder Ridge Wild Animal Park	600	0	-
Calvary Baptist Church-Greenvl Classrms	600	0	-

Compare beyond Michigan

Lower-flagged peers for Kent County

Cross-state counties nearest Kent County on flagged-system share (72.0%) and cumulative violation count (4,140). 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.