Centralia, Illinois: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 13 community water systems serving 30,242+ residents. See violations, PFAS results, lead test results, and safety grades — free.
Is Centralia Tap Water Safe to Drink?
Based on the latest EPA data, Centralia tap water meets all federal drinking water standards. All 13 tested systems have received a safety grade of A or B, with no active health-based violations.
Centralia Water Quality Overview
Centralia, Illinois is served by 13 community water systems providing water to approximately 30,242 residents. These systems draw from surface water purchased (12), surface water (1) sources. Centralia water systems have no recorded health-based violations. Including monitoring and reporting violations, there are 74 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 13 water systems in Centralia
Looking for water quality data across the whole state? See our full Illinois tap water safety report covering Illinois’s EPA-regulated water systems.
Centralia Drinking Water: Frequently Asked Questions
Is Centralia, Illinois tap water safe to drink?
Based on the latest EPA data, Centralia tap water meets all federal drinking water standards. All 13 tested systems have received a safety grade of A or B, with no active health-based violations.
How many water utilities serve Centralia, Illinois?
13 community water systems serve Centralia, Illinois, providing water to approximately 30,242 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does Centralia 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 Centralia drinking water?
EPA violation records for Centralia 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 Centralia?
Enter your Centralia 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).