D39/100
Geneva Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 31,846 residents · Illinois
What's In Geneva's Tap Water?
66
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.009 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2021.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
SOUTH BARRINGTON
Population Served
1,175
Water Source
Groundwater
System ID
IL0310200
MILL CREEK WATER RECLAMATION DISTRICT
Population Served
8,000
Water Source
Groundwater
System ID
IL0890120
GENEVA
Population Served
21,247
Water Source
Groundwater
System ID
IL0890350
WYNSTONE WATER COMPANY
Population Served
1,424
Water Source
Groundwater
System ID
IL0970080
Frequently Asked Questions About Geneva Water
Is Geneva tap water safe to drink?
Geneva, Illinois tap water receives a grade of D (39/100), which is considered poor. 0 contaminant(s) exceed EPA maximum contaminant levels and 101 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Geneva's water?
Of the 66 contaminants tested in Geneva's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Geneva have any water quality violations?
Yes, Geneva has 101 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, MCL. 67 of these are health-based violations, which are the most serious category.
Do I need a water filter in Geneva?
Geneva water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Geneva's tap water come from?
Geneva's drinking water is sourced from groundwater and supplied by SOUTH BARRINGTON and 3 other water system(s). The system serves approximately 31,846 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Geneva's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Geneva's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Geneva's water compare to other cities in Illinois?
Geneva's water quality score of 39/100 earns a grade of D, which is considered poor. This is a concerning score that suggests significant water quality issues. Visit our Illinois state page to see how all cities in the state compare.
What should I do if I'm concerned about Geneva's water quality?
If you have concerns about Geneva's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (SOUTH BARRINGTON) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.