The Dalles, Oregon: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 16 community water systems serving 19,216+ residents. See violations, PFAS results, lead test results, and safety grades — free.
Is The Dalles Tap Water Safe to Drink?
Based on the latest EPA data, The Dalles 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.
The Dalles Water Quality Overview
The Dalles, Oregon is served by 16 community water systems providing water to approximately 19,216 residents. These systems draw from groundwater (15), surface water (1) sources. The Dalles water systems have recorded 21 health-based violations in their history, though none are currently active. Including monitoring and reporting violations, there are 633 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 16 water systems in The Dalles
Looking for water quality data across the whole state? See our full Oregon tap water safety report covering Oregon’s EPA-regulated water systems.
The Dalles Drinking Water: Frequently Asked Questions
Is The Dalles, Oregon tap water safe to drink?
Based on the latest EPA data, The Dalles 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 The Dalles, Oregon?
16 community water systems serve The Dalles, Oregon, providing water to approximately 19,216 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does The Dalles 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 The Dalles drinking water?
EPA violation records for The Dalles 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 The Dalles?
Enter your The Dalles 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).