How many water violations are in Kane County?

Kane County has 12,844 total drinking water violations across 191 water systems, of which 2,280 are health-based violations. 85.3% of systems have at least one violation.

How many people get water from Kane County systems?

Water systems in Kane County serve approximately 592,544 people through 191 public water systems.

Has PFAS been detected in Kane County water?

Under EPA UCMR5, 6 of 18 tested systems in Kane County had at least one PFAS detection (33.3% of the UCMR5-tested subset - not of all 191 SDWIS systems).

What types of water sources supply Kane County?

Water systems in Kane County use GW (185 systems), SW (6 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. 17.8% of Kane County's violations are health-based. Among counties with any SDWIS violations, this extract puts Kane County in the middle health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

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

According to EPA SDWIS county population served used on /counties, Kane County ranks #120 of 3,254 counties by people served, and #5 of 102 counties in Illinois. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Illinois

Kane County, Illinois

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet IL089 · Kane County 191 sys · 12,844 viol · #120/3254

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

VIOL-SEVERE 85.3% flagged
HEALTH-LOW 17.8% health
RANK-TOP #120/3254
PHOTO-FINISH ±0.4 pp
PFAS-MID 33.3% detect
SRC-GW GW lead 97%
SYS-LARGE 191 systems
BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Union County (+ 0.4 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Kane County ranks #120 of 3,254 counties by people served, and #5 of 102 counties in Illinois. See methodology · corpus placement.

Kane County standing, lower-flagged corpus third

Flagged-system rate 85.3% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 17.8% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 33.3% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #120 of 3,254 · #5 of 102 in Illinois.

Water Systems

System Name	Population	Violations	PFAS
Aurora	183,000	55	Detected
Elgin	114,797	37	Detected
Carpentersville	37,983	17	Clean
St Charles	33,103	37	Detected
Montgomery	28,956	68	Clean
Batavia	26,098	289	Clean
South Elgin	23,648	38	Detected
Geneva	21,247	192	Clean
North Aurora	18,350	210	Clean
Sugar Grove	11,243	80	Detected
Pingree Grove	10,365	42	Clean
Gilberts	8,366	17	Clean
Mill Creek Water Reclamation District	8,000	59	Clean
West Dundee	7,845	111	Clean
Hampshire	7,758	142	Clean
Elburn	6,559	276	Clean
Wasco SD	4,000	110	Clean
East Dundee	3,115	11	-
Sleepy Hollow	3,100	52	-
Waubonsee Community College	2,000	74	-
Kaneland High School	1,800	489	-
Northwest Bible Baptist Church	1,600	3	-
Maple Park	1,484	210	-
Aqua Illinois-Skyline (Northern)	1,200	799	-
Prairie Path Water Company-Ferson Creek	1,134	25	-
Prairie Path Water Company-Lake Marian	1,022	443	-
Central High School	1,001	51	-
Willow Lake Estates MHP	920	41	Detected
Aqua Illinois-Moecherville	920	32	-
Central Middle School	750	17	-
Parkside Lanes	750	5	-
Ferson Creek Elem Schl-Cusd 303	667	23	-
Silver Glen Homeowner's Association	595	222	-
Howard B Thomas Grade School	575	165	-
Burlington	535	61	-
Prairie View Elementary School	508	14	-
Dunham Woods Riding Club	500	16	-
Dick Young Forest Preserve	500	16	-
Randall Oaks Park Comm Shelter	500	24	-
Ogden Gardens Subdivision	420	39	-
Sycamore Speedway	400	24	-
Hinckley-Big Rock Middle School	400	513	-
Algonquin Mobile	400	14	-
IL Youth Center St Charles	375	60	-
Margarets HI-Acre MHP	300	190	-
Margarets Park View Estates MHP	300	999	-
Fishermens Inn	300	4	-
Calamity Janes	300	21	-
Leroy Oaks for Pres Shelter	300	13	-
Mooseheart	272	128	-

Compare beyond Illinois

Lower-flagged peers for Kane County

Cross-state counties nearest Kane County on flagged-system share (85.3%) and cumulative violation count (12,844). 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.