A96/100
Orland Park Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 58,862 residents · Illinois
What's In Orland Park's Tap Water?
76
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Surface water treatment technique failure
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
ORLAND PARK
Population Served
58,862
Water Source
Purchased Surface Water
System ID
IL0312310
Frequently Asked Questions About Orland Park Water
Is Orland Park tap water safe to drink?
Orland Park, Illinois tap water receives a grade of A (96/100), which is considered excellent. Out of 76 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 Orland Park's water?
76 contaminants were tested in Orland Park's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Orland Park have any water quality violations?
Yes, Orland Park has 4 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR. None of these are classified as health-based violations.
Do I need a water filter in Orland Park?
Orland Park 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 Orland Park's tap water come from?
Orland Park's drinking water is sourced from purchased surface water and supplied by ORLAND PARK. The system serves approximately 58,862 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Orland Park'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. Orland Park'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 Orland Park's water compare to other cities in Illinois?
Orland Park's water quality score of 96/100 earns a grade of A, which is considered excellent. This places Orland Park 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 Orland Park's water quality?
If you have concerns about Orland Park'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 (ORLAND PARK) 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.