C50/100
Ingleside Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 11,780 residents · Illinois
What's In Ingleside's Tap Water?
32
Contaminants Tested
2
Exceed EPA Limits
1
Above EPA Goals
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.40 mg/L | 1.30 mg/L | Over Limit |
PFOS | 0.005 µg/L | 0.004 µg/L | Over Limit |
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
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
FOX LAKE
Population Served
11,780
Water Source
Groundwater
System ID
IL0970200
Frequently Asked Questions About Ingleside Water
Is Ingleside tap water safe to drink?
Ingleside, Illinois tap water receives a grade of C (50/100), which is considered fair. 2 contaminant(s) exceed EPA maximum contaminant levels and 15 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Ingleside's water?
Of the 32 contaminants tested in Ingleside's water supply, the most notable include PFOS, Copper (90th percentile), Lead (90th percentile). 2 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Ingleside have any water quality violations?
Yes, Ingleside has 15 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, MCL. 4 of these are health-based violations, which are the most serious category.
Do I need a water filter in Ingleside?
Based on EPA data, using a water filter in Ingleside is recommended. 2 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Ingleside's tap water come from?
Ingleside's drinking water is sourced from groundwater and supplied by FOX LAKE. The system serves approximately 11,780 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Ingleside'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. Ingleside'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 Ingleside's water compare to other cities in Illinois?
Ingleside's water quality score of 50/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Illinois state page to see how all cities in the state compare.
What should I do if I'm concerned about Ingleside's water quality?
If you have concerns about Ingleside'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 (FOX LAKE) 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.