Windsor, Colorado: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 56 community water systems serving 36,944+ residents. See violations, PFAS results, lead test results, and safety grades — free.
Is Windsor Tap Water Safe to Drink?
Windsor has 56 community water systems. 55 of 56 graded systems meet all EPA standards (grade A or B), while 1 has recorded violations. No active health-based violations are currently open. Check individual system reports below for specifics.
Windsor Water Quality Overview
Windsor, Colorado is served by 56 community water systems providing water to approximately 36,944 residents. These systems draw from groundwater (33), surface water purchased (16), groundwater purchased (3), surface water (3), other (1) sources. Windsor water systems have recorded 185 health-based violations in their history, though none are currently active. Including monitoring and reporting violations, there are 887 total violations on record.
Find Your Water System
Search by ZIP code to find your exact water provider and see its full EPA report.
Showing top 50 of 56 water systems by population served
Looking for water quality data across the whole state? See our full Colorado tap water safety report covering all Colorado’s EPA-regulated water systems.
Windsor Drinking Water: Frequently Asked Questions
Is Windsor, Colorado tap water safe to drink?
Windsor has 56 community water systems. 55 of 56 graded systems meet all EPA standards (grade A or B), while 1 has recorded violations. No active health-based violations are currently open. Check individual system reports below for specifics.
How many water utilities serve Windsor, Colorado?
56 community water systems serve Windsor, Colorado, providing water to approximately 36,944 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does Windsor 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 Windsor drinking water?
EPA violation records for Windsor 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 Windsor?
Enter your Windsor 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).