Grand Junction, Colorado: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 16 community water systems serving 129,159+ residents. See violations, PFAS results, lead test results, and safety grades — free.
EPA data last updated: 2026-06-23
Is Grand Junction Tap Water Safe to Drink?
Based on the latest EPA data, Grand Junction tap water meets all federal drinking water standards. All 16 tested systems have received a safety grade of A or B, with no active health-based violations.
Grand Junction Water Quality Overview
Grand Junction, Colorado is served by 16 community water systems providing water to approximately 129,159 residents. These systems draw from groundwater (8), surface water (4), gwudi (2), surface water purchased (2) sources. Grand Junction water systems have recorded 14 health-based violations in their history, though none are currently active. Including monitoring and reporting violations, there are 235 total violations on record.
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All 16 water systems in Grand Junction
Looking for water quality data across the whole state? See our full Colorado tap water safety report covering Colorado’s EPA-regulated water systems.
Grand Junction Drinking Water: Frequently Asked Questions
Is Grand Junction, Colorado tap water safe to drink?
Based on the latest EPA data, Grand Junction tap water meets all federal drinking water standards. All 16 tested systems have received a safety grade of A or B, with no active health-based violations.
How many water utilities serve Grand Junction, Colorado?
16 community water systems serve Grand Junction, Colorado, providing water to approximately 129,159 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does Grand Junction 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 Grand Junction drinking water?
EPA violation records for Grand Junction 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 Grand Junction?
Enter your Grand Junction 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).