Marshfield, Wisconsin: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 23 community water systems serving 21,389+ residents. See violations, PFAS results, lead test results, and safety grades — free.
Is Marshfield Tap Water Safe to Drink?
21 of 23 tested water systems in Marshfield meet federal drinking water standards with no active violations. 2 systems have 2 active health-based violations — check individual reports below for details. 1 system has been tested for PFAS (forever chemicals).
Marshfield Water Quality Overview
Marshfield, Wisconsin is served by 23 community water systems providing water to approximately 21,389 residents. These systems draw from groundwater sources. 2 active health-based violations across Marshfield water systems require attention. Including monitoring and reporting violations, there are 152 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 23 water systems in Marshfield
Looking for water quality data across the whole state? See our full Wisconsin tap water safety report covering Wisconsin’s EPA-regulated water systems.
Marshfield Drinking Water: Frequently Asked Questions
Is Marshfield, Wisconsin tap water safe to drink?
21 of 23 tested water systems in Marshfield meet federal drinking water standards with no active violations. 2 systems have 2 active health-based violations — check individual reports below for details. 1 system has been tested for PFAS (forever chemicals).
How many water utilities serve Marshfield, Wisconsin?
23 community water systems serve Marshfield, Wisconsin, providing water to approximately 21,389 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does Marshfield 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 Marshfield drinking water?
EPA violation records for Marshfield 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 Marshfield?
Enter your Marshfield 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).