Chaska, Minnesota: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 18 community water systems serving 31,819+ residents. See violations, PFAS results, lead test results, and safety grades — free.
Is Chaska Tap Water Safe to Drink?
Based on the latest EPA data, Chaska tap water meets all federal drinking water standards. All 18 tested systems have received a safety grade of A or B, with no active health-based violations.
Chaska Water Quality Overview
Chaska, Minnesota is served by 18 community water systems providing water to approximately 31,819 residents. These systems draw from groundwater sources. Chaska water systems have no recorded health-based violations. Including monitoring and reporting violations, there are 11 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 18 water systems in Chaska
Looking for water quality data across the whole state? See our full Minnesota tap water safety report covering Minnesota’s EPA-regulated water systems.
Chaska Drinking Water: Frequently Asked Questions
Is Chaska, Minnesota tap water safe to drink?
Based on the latest EPA data, Chaska tap water meets all federal drinking water standards. All 18 tested systems have received a safety grade of A or B, with no active health-based violations.
How many water utilities serve Chaska, Minnesota?
18 community water systems serve Chaska, Minnesota, providing water to approximately 31,819 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does Chaska 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 Chaska drinking water?
EPA violation records for Chaska 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 Chaska?
Enter your Chaska 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).