La Grande, Oregon: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 7 community water systems serving 14,171+ residents. See violations, PFAS results, lead test results, and safety grades — free.
EPA data last updated: 2026-06-24
Is La Grande Tap Water Safe to Drink?
Based on the latest EPA data, La Grande tap water meets all federal drinking water standards. All 7 tested systems have received a safety grade of A or B, with no active health-based violations.
La Grande Water Quality Overview
La Grande, Oregon is served by 7 community water systems providing water to approximately 14,171 residents. These systems draw from groundwater sources. La Grande water systems have recorded 1 health-based violation in their history, though none are currently active. Including monitoring and reporting violations, there are 164 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 7 water systems in La Grande
Looking for water quality data across the whole state? See our full Oregon tap water safety report covering Oregon’s EPA-regulated water systems.
La Grande Drinking Water: Frequently Asked Questions
Is La Grande, Oregon tap water safe to drink?
Based on the latest EPA data, La Grande tap water meets all federal drinking water standards. All 7 tested systems have received a safety grade of A or B, with no active health-based violations.
How many water utilities serve La Grande, Oregon?
7 community water systems serve La Grande, Oregon, providing water to approximately 14,171 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does La Grande 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 La Grande drinking water?
EPA violation records for La Grande 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 La Grande?
Enter your La Grande 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).