How many water violations are in Lake County?

Lake County has 2,505 total drinking water violations across 76 water systems, of which 117 are health-based violations. 93.4% of systems have at least one violation.

How many people get water from Lake County systems?

Water systems in Lake County serve approximately 7,773 people through 76 public water systems.

Has PFAS been detected in Lake County water?

No UCMR5 PFAS testing results are in this extract for Lake County water systems.

What types of water sources supply Lake County?

Water systems in Lake County use GW (76 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. 4.7% of Lake County's violations are health-based. Among counties with any SDWIS violations, this extract puts Lake County in the lower health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

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

According to EPA SDWIS county population served used on /counties, Lake County ranks #2,546 of 3,254 counties by people served, and #75 of 83 counties in Michigan. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Michigan

Lake County, Michigan

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet MI085 · Lake County 76 sys · 2,505 viol · #2546/3254

VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-MID · BOOK-MOST

VIOL-SEVERE 93.4% flagged
HEALTH-LOW 4.7% health
RANK-LOWER #2546/3254
PHOTO-FINISH ±0.1 pp
PFAS-NONE No UCMR5 set
SRC-GW GW lead 100%
SYS-MID 76 systems
BOOK-MOST 6/7 fields

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

According to EPA SDWIS county population served used on /counties, Lake County ranks #2,546 of 3,254 counties by people served, and #75 of 83 counties in Michigan. See methodology · corpus placement.

Lake County standing, mid-flagged corpus third

Flagged-system rate 93.4% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 4.7% is health-based share at or below the lower third (≤ 10.3%) . No UCMR5 tests in this extract for Lake County . Population served ranks #2,546 of 3,254 · #75 of 83 in Michigan.

Water Systems

System Name	Population	Violations	PFAS
Baldwin, Village Of	1,060	35	-
Big Star Ez Mart	650	4	-
Chase Creek Smokehouse	531	39	-
Odd Fellow & Rebekah Camp	320	12	-
Leisure Time Campground	270	37	-
Irons RV Park	250	4	-
Whispering Oaks Campground	228	15	-
Dollar General Chase	205	0	-
North Bar	200	122	-
Pere Marquette Oaks RV Park	200	25	-
Marquette Trails Condo Assoc. and Golf C	200	171	-
Chase Express	200	45	-
Peaceful Winds RV Park	189	10	-
Pine Forest Campground	150	30	-
Amvets Post #1988	150	23	-
Dollar General - Luther	150	23	-
D Bar D Ranch	138	22	-
Snug Harbor Resort	126	19	-
Faith Fellowship Church	120	9	-
Best Bear Lodge & Campground	120	8	-
Putman Lake Campground	116	30	-
Na-Tah-Ka Tavern	100	128	-
Club 37	100	10	-
Irons Bible Church	100	14	-
Fellowship Baptist Church	100	34	-
Kingdom Hall Baldwin	85	37	-
Duvernay Park Apartments	68	71	-
Big Bass Lake Campground	63	16	-
Pat & Pearls Trailer Park	60	2	-
Ivans Cg & Cabins - Bath House	60	31	-
Edgetts Wesleyan Church	60	36	-
Lake Community Bible Church	60	0	-
Peyton's Bar & Grill	60	86	-
Camp Living Waters Kitchen	50	20	-
Wolf Lake Ranch Cabins	50	3	-
Lake Co. Habitat Restore	45	15	-
Dunrovin Conference Ctr	42	17	-
Pleasant Acres Trailer Park	40	12	-
Baldwin Assembly of God Church	40	45	-
Chase Fellowship Church	40	37	-
Houseman's Foods	38	117	-
Dunrovin Conf Ctr Kitchen Well	36	18	-
Ivans Cg and Cabins House	35	6	-
Dollar General - Irons	35	0	-
Pere Marquette River Lodge	30	28	-
St. Ignatius Church	30	27	-
7th Day Adventist Church-Idlewild	30	125	-
Rockwell Lake Lodge Main	30	12	-
Camp Living Waters North Lodge	30	29	-
Biostation Cabins	30	3	-

Compare beyond Michigan

Mid-flagged peers for Lake County

Cross-state counties nearest Lake County on flagged-system share (93.4%) and cumulative violation count (2,505). 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.