F17/100
Huntley Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 28,495 residents · Illinois
What's In Huntley's Tap Water?
66
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
1
Health-Related
TIER 1 — URGENTUnresolved
Maximum Contaminant Level Violation
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
HUNTLEY
Population Served
28,495
Water Source
Groundwater
System ID
IL1110350
Frequently Asked Questions About Huntley Water
Is Huntley tap water safe to drink?
Huntley, Illinois tap water receives a grade of F (17/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 23 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Huntley's water?
66 contaminants were tested in Huntley's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Huntley have any water quality violations?
Yes, Huntley has 23 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, MR. 15 of these are health-based violations, which are the most serious category.
Do I need a water filter in Huntley?
Huntley 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 Huntley's tap water come from?
Huntley's drinking water is sourced from groundwater and supplied by HUNTLEY. The system serves approximately 28,495 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Huntley'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. Huntley'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 Huntley's water compare to other cities in Illinois?
Huntley's water quality score of 17/100 earns a grade of F, which is considered failing. 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 Huntley's water quality?
If you have concerns about Huntley'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 (HUNTLEY) 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.