A91/100
Lincolonwood Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 13,463 residents · Illinois
What's In Lincolonwood's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 2, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
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
LINCOLNWOOD
Population Served
13,463
Water Source
Purchased Surface Water
System ID
IL0311650
Frequently Asked Questions About Lincolonwood Water
Is Lincolonwood tap water safe to drink?
Lincolonwood, Illinois tap water receives a grade of A (91/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Lincolonwood's water?
Of the 69 contaminants tested in Lincolonwood'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 Lincolonwood have any water quality violations?
Yes, Lincolonwood has 2 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, TT. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Lincolonwood?
Lincolonwood 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 Lincolonwood's tap water come from?
Lincolonwood's drinking water is sourced from purchased surface water and supplied by LINCOLNWOOD. The system serves approximately 13,463 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Lincolonwood'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. Lincolonwood'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 Lincolonwood's water compare to other cities in Illinois?
Lincolonwood's water quality score of 91/100 earns a grade of A, which is considered excellent. This places Lincolonwood among the better-performing water systems in Illinois. Visit our Illinois state page to see how all cities in the state compare.
What should I do if I'm concerned about Lincolonwood's water quality?
If you have concerns about Lincolonwood'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 (LINCOLNWOOD) 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.