Arlington Heights, Illinois: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 8 community water systems serving 74,484+ residents. See violations, PFAS results, lead test results, and safety grades — free.
Is Arlington Heights Tap Water Safe to Drink?
Based on the latest EPA data, Arlington Heights tap water meets all federal drinking water standards. All 8 tested systems have received a safety grade of A or B, with no active health-based violations.
Arlington Heights Water Quality Overview
Arlington Heights, Illinois is served by 8 community water systems providing water to approximately 74,484 residents. These systems draw from groundwater (6), surface water purchased (1), groundwater purchased (1) sources. Arlington Heights water systems have no recorded health-based violations. Including monitoring and reporting violations, there are 103 total violations on record.
Find Your Water System
Search by ZIP code to find your exact water provider and see its full EPA report.
All 8 water systems in Arlington Heights
Looking for water quality data across the whole state? See our full Illinois tap water safety report covering Illinois’s EPA-regulated water systems.
Arlington Heights Drinking Water: Frequently Asked Questions
Is Arlington Heights, Illinois tap water safe to drink?
Based on the latest EPA data, Arlington Heights tap water meets all federal drinking water standards. All 8 tested systems have received a safety grade of A or B, with no active health-based violations.
How many water utilities serve Arlington Heights, Illinois?
8 community water systems serve Arlington Heights, Illinois, providing water to approximately 74,484 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does Arlington Heights tap water have lead?
Lead in drinking water typically enters from old pipes and fixtures inside homes and buildings, not from the treatment plant. The EPA requires water systems to monitor for lead under the Lead and Copper Rule. Click any water system above to see its most recent 90th-percentile lead test results. Homes built before 1986 are most likely to have lead plumbing components.
What contaminants have been found in Arlington Heights drinking water?
EPA violation records for Arlington Heights water systems are listed on each utility's report page. Common regulated contaminants include disinfection byproducts (TTHMs, HAA5), coliform bacteria, nitrates, and lead. Click any utility above to see its full violation history going back 10 years.
How do I find out which water company serves my address in Arlington Heights?
Enter your Arlington Heights ZIP code in the search box at the top of this page. ClearWater will identify the specific water system serving your area and show you its EPA violation history, lead test results, and an overall safety grade. You can also check your water bill or your utility's annual Consumer Confidence Report (CCR).