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Water Quality Report · Updated October 07, 2026

ELGIN

Serving 114,797 residents in ELGIN, Illinois .

National rank 6th percentile
Illinois rank 3th percentile
Data confidence Medium
Quick answer

ELGIN delivers tap water graded F (49/100) by TapWaterSafety.org. The utility serves approximately 114,797 residents in ELGIN, Illinois using surface water. The most significant water quality concerns are: PFAS contamination; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Arsenic significantly above health guideline. For questions, the utility can be reached at 847-931-6744.

Data sources for this grade: utilities.csv EWG Tap Water Database ⓘ How did we get this rating?
114,797
People served
1
City served
36
Contaminants detected
16
Above health guidelines

Is ELGIN tap water safe to drink?

ELGIN delivers tap water that earns a grade of F (49/100) from TapWaterSafety.org — a poor rating, with significant contamination concerns and/or recent violations.

The utility serves 114,797 residents in ELGIN, drawing from surface water.

Public testing data identifies 16 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Arsenic, Bromodichloromethane, Haloacetic acids (HAA5), Dibromochloromethane, Trichloroacetic acid, Dibromoacetic acid, Chloroform, Dichloroacetic acid, Chromium (hexavalent), Perfluorooctanoic acid (PFOA), Radium, combined (-226 and -228), Nitrate, Bromoform, Perfluorooctane sulfonate (PFOS). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.

EPA compliance record

Official U.S. EPA records for ELGIN (system ID IL0894380) for the last 3 years. Checked 2026-10-07.

No health-based violations. EPA recorded 5 quarters with a testing, reporting or notice violation.
5 of 12quarters with a violation
Yeslead above EPA action level
08/19/2025last state inspection
RuleTypeSinceStatus
Consumer Confidence Rule Other (e.g. public notice) 07/01/2024 Open
Lead and Copper Rule Missed testing or reporting 04/01/2025 Open
Synthetic Organic Chemicals Missed testing or reporting 07/01/2024 Open
Stage 1 Disinfectants and Disinfection Byproducts Rule Missed testing or reporting 11/01/2024 Open

Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.

Top concerns in this water

Based on the most recent EPA and EWG data, these are the most significant water quality issues for ELGIN.

PFAS contamination

Severe concern

Perfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.

Haloacetic acids (HAA9) significantly above health guideline

Moderate concern

Haloacetic acids (HAA9) detected at 18.5 ppb, 309x above the EWG health guideline of 0.06 ppb.

Total trihalomethanes (TTHMs) significantly above health guideline

Moderate concern

Total trihalomethanes (TTHMs) detected at 37.6 ppb, 251x above the EWG health guideline of 0.15 ppb.

Arsenic significantly above health guideline

Moderate concern

Arsenic detected at 0.906 ppb, 226x above the EWG health guideline of 0.004 ppb.

Contact ELGIN

Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.

Recommended water filters for ELGIN

Filters matched to the specific contaminants in this water supply.

Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)

$180-$750

Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.

AquaTru Countertop Reverse Osmosis
$449-$599 NSF 42, 53, 58, 401, 372
Editorial pick · affiliate link coming soon
Aquasana AQ-5300 Under-Sink Filter
$180-$240 NSF 42, 53, 401, 372
Editorial pick · affiliate link coming soon
Aquasana OptimH2O Reverse Osmosis + Claryum
$429-$549 NSF 42, 53, 58, 401
Editorial pick · affiliate link coming soon
Waterdrop G3P800 Tankless RO
$600-$750 NSF 42, 53, 58, 372
View on retailer →

Carbon filter certified for VOCs (NSF/ANSI 53)

$180-$599

Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.

Aquasana AQ-5300 Under-Sink Filter
$180-$240 NSF 42, 53, 401, 372
Editorial pick · affiliate link coming soon
AquaTru Countertop Reverse Osmosis
$449-$599 NSF 42, 53, 58, 401, 372
Editorial pick · affiliate link coming soon
Aquasana OptimH2O Reverse Osmosis + Claryum
$429-$549 NSF 42, 53, 58, 401
Editorial pick · affiliate link coming soon

Reverse osmosis certified for arsenic (NSF/ANSI 58)

$429-$599

Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.

AquaTru Countertop Reverse Osmosis
$449-$599 NSF 42, 53, 58, 401, 372
Editorial pick · affiliate link coming soon
Aquasana OptimH2O Reverse Osmosis + Claryum
$429-$549 NSF 42, 53, 58, 401
Editorial pick · affiliate link coming soon

Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.

Score breakdown

This utility's overall score of 49/100 breaks down across five weighted components. Read the full methodology →

Health Guideline Performance
12 / 40
Legal Compliance
20 / 20
High-Risk Contaminants
8 / 20
Compliance History
2 / 10
Source Water Vulnerability
7 / 10

Contaminants detected — international standards comparison

Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). Why we show multiple standards →

Contaminant Detected EWG
US health-based
EPA
US legal
EU DWD
Europe
WHO
global
CA PHG
strictest US
Tested
sample year
Status
Haloacetic acids (HAA9)
Disinfection byproduct
18.5 ppb 0.06 — — — — — 309× over
Total trihalomethanes (TTHMs)
Disinfection byproduct
37.6 ppb 0.15 80.0 100 — — — 251× over
Arsenic
Heavy metal
0.906 ppb 0.004 10.0 10 10 0.004 — 226× over
Bromodichloromethane
Disinfection byproduct
11.4 ppb 0.06 — — — — — 191× over
Haloacetic acids (HAA5)
Disinfection byproduct
14.8 ppb 0.1 60.0 60 — — — 148× over
Dibromochloromethane
Disinfection byproduct
6.45 ppb 0.1 — — — — — 65× over
Trichloroacetic acid
Disinfection byproduct
5.78 ppb 0.1 — — — — — 58× over
Dibromoacetic acid
Disinfection byproduct
1.49 ppb 0.03 — — — — — 50× over
Chloroform
Disinfection byproduct
18.4 ppb 0.4 — — — — — 46× over
Dichloroacetic acid
Disinfection byproduct
7.28 ppb 0.2 — — — — — 36× over
Chromium (hexavalent)
Heavy metal
0.395 ppb 0.02 — — — — — 20× over
Perfluorooctanoic acid (PFOA)
PFAS
1.01 ppt 0.09 4.0 100 100 0.007 — 11× over
Radium, combined (-226 and -228)
Radiological
0.41 pCi/L 0.05 5.0 — — — — 8.2× over
Nitrate
Inorganic
0.622 ppm 0.14 10.0 11.3 11.3 10 — 4.4× over
Bromoform
Disinfection byproduct
1.26 ppb 0.5 — — — — — 2.5× over
Perfluorooctane sulfonate (PFOS)
PFAS
0.686 ppt 0.3 4.0 100 100 1 — 2.3× over
Di(2-ethylhexyl) phthalate
Semi-volatile organic compound
0.503 ppb 3.0 6.0 — — — — Below guideline
Barium
Heavy metal
101.6 ppb 700.0 2000.0 — 1300 2000 — Below guideline
1,4-Dioxane
Semi-volatile organic compound
0.045 ppb 0.35 — — 50 1 — Below guideline
Chloromethane
Other
0.275 ppb 2.69 — — — — — Below guideline
Selenium
Heavy metal
2.48 ppb 30.0 50.0 20 40 30 — Below guideline
Vanadium
Other
0.875 ppb 21.0 — — — — — Below guideline
Antimony
Heavy metal
0.0405 ppb 1.0 6.0 10 20 1 — Below guideline
Molybdenum
Other
0.631 ppb 40.0 — — — — — Below guideline
Chlorate
Disinfection byproduct
3.25 ppb 210.0 — — — — — Below guideline
Monobromoacetic acid
Disinfection byproduct
0.134 ppb 25.0 — — — — — Below guideline
Monochloroacetic acid
Disinfection byproduct
0.139 ppb 53.0 — — — — — Below guideline
Perfluorohexanoic Acid (PFHxA)
PFAS
1.94 ppt 1000.0 — — — — — Below guideline
Manganese
Heavy metal
0.0833 ppb 100.0 — 50 80 — — Below guideline
Perfluorobutane sulfonate (PFBS)
PFAS
0.971 ppt 2000.0 — — — — — Below guideline
Strontium
Radiological
0.376 ppb 1500.0 — — — — — Below guideline
1-Butanol
Other
0.713 ppb — — — — — — Below guideline
Chromium (total)
Heavy metal
0.73 ppb — 100.0 — — — — Below guideline
Dalapon
Pesticide/Herbicide
0.474 ppb — 200.0 — — — — Below guideline
Fluoride
Inorganic
0.683 ppm — 4.0 1.5 1.5 — — Below guideline
Germanium
Other
0.0375 ppb — — — — — — Below guideline

All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.

Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines (4th ed.), California OEHHA PHGs, EWG Tap Water Database.

ELGIN service area

This water system serves 1 community in Kane County, Illinois. Click any city for its dedicated tap water quality page.

About this water system

Public Water System ID
IL0894380
Owner type
Local government
Source water
Surface water
Service connections
34,653
Service area
ELGIN, Kane County, Illinois