B69/100
Sleepy Hollow Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 3,100 residents · Illinois
What's In Sleepy Hollow's Tap Water?
27
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2019.
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
SLEEPY HOLLOW
Population Served
3,100
Water Source
Purchased Surface Water
System ID
IL0890750
Frequently Asked Questions About Sleepy Hollow Water
Is Sleepy Hollow tap water safe to drink?
Sleepy Hollow, Illinois tap water receives a grade of B (69/100), which is considered good. Out of 27 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 Sleepy Hollow's water?
27 contaminants were tested in Sleepy Hollow's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Sleepy Hollow have any water quality violations?
Yes, Sleepy Hollow has 15 EPA violation(s) on record, with the most recent in 2019. Violation types include Other, MCL, MR. 4 of these are health-based violations, which are the most serious category.
Do I need a water filter in Sleepy Hollow?
Sleepy Hollow 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 Sleepy Hollow's tap water come from?
Sleepy Hollow's drinking water is sourced from purchased surface water and supplied by SLEEPY HOLLOW. The system serves approximately 3,100 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Sleepy Hollow'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. Sleepy Hollow'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 Sleepy Hollow's water compare to other cities in Illinois?
Sleepy Hollow's water quality score of 69/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Illinois state page to see how all cities in the state compare.
What should I do if I'm concerned about Sleepy Hollow's water quality?
If you have concerns about Sleepy Hollow'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 (SLEEPY HOLLOW) 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.