A93/100
Hickory Hills Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 14,505 residents · Illinois
What's In Hickory Hills's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1992.
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
HICKORY HILLS
Population Served
14,505
Water Source
Purchased Surface Water
System ID
IL0311200
Frequently Asked Questions About Hickory Hills Water
Is Hickory Hills tap water safe to drink?
Hickory Hills, Illinois tap water receives a grade of A (93/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Hickory Hills's water?
69 contaminants were tested in Hickory Hills's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Hickory Hills have any water quality violations?
Yes, Hickory Hills has 3 EPA violation(s) on record, with the most recent in 1992. Violation types include MR, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Hickory Hills?
Hickory Hills 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. All contaminants are within health goals.
Where does Hickory Hills's tap water come from?
Hickory Hills's drinking water is sourced from purchased surface water and supplied by HICKORY HILLS. The system serves approximately 14,505 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Hickory Hills'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. Hickory Hills'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 Hickory Hills's water compare to other cities in Illinois?
Hickory Hills's water quality score of 93/100 earns a grade of A, which is considered excellent. This places Hickory Hills 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 Hickory Hills's water quality?
If you have concerns about Hickory Hills'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 (HICKORY HILLS) 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.