A83/100
Machesney Park Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 35,580 residents · Illinois
What's In Machesney Park's Tap Water?
66
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.005 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2007.
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
NORTH PARK PWD
Population Served
35,580
Water Source
Groundwater
System ID
IL2015500
Frequently Asked Questions About Machesney Park Water
Is Machesney Park tap water safe to drink?
Machesney Park, Illinois tap water receives a grade of A (83/100), which is considered excellent. Out of 66 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Machesney Park's water?
Of the 66 contaminants tested in Machesney Park's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Machesney Park have any water quality violations?
Yes, Machesney Park has 6 EPA violation(s) on record, with the most recent in 2007. Violation types include MR, MCL. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in Machesney Park?
Machesney 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. 1 contaminant(s) exceed these stricter goals.
Where does Machesney Park's tap water come from?
Machesney Park's drinking water is sourced from groundwater and supplied by NORTH PARK PWD. The system serves approximately 35,580 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Machesney 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. Machesney 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 Machesney Park's water compare to other cities in Illinois?
Machesney Park's water quality score of 83/100 earns a grade of A, which is considered excellent. This places Machesney 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 Machesney Park's water quality?
If you have concerns about Machesney 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 (NORTH PARK PWD) 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.