Sierra Vista, Arizona: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 14 community water systems serving 57,737+ residents. See violations, PFAS results, lead test results, and safety grades — free.
Is Sierra Vista Tap Water Safe to Drink?
13 of 14 tested water systems in Sierra Vista meet federal drinking water standards with no active violations. 1 system has 1 active health-based violation — check individual reports below for details. 2 systems have been tested for PFAS (forever chemicals).
Sierra Vista Water Quality Overview
Sierra Vista, Arizona is served by 14 community water systems providing water to approximately 57,737 residents. These systems draw from groundwater sources. 1 active health-based violation across Sierra Vista water systems require attention. Including monitoring and reporting violations, there are 500 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 14 water systems in Sierra Vista
Looking for water quality data across the whole state? See our full Arizona tap water safety report covering Arizona’s EPA-regulated water systems.
Sierra Vista Drinking Water: Frequently Asked Questions
Is Sierra Vista, Arizona tap water safe to drink?
13 of 14 tested water systems in Sierra Vista meet federal drinking water standards with no active violations. 1 system has 1 active health-based violation — check individual reports below for details. 2 systems have been tested for PFAS (forever chemicals).
How many water utilities serve Sierra Vista, Arizona?
14 community water systems serve Sierra Vista, Arizona, providing water to approximately 57,737 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does Sierra Vista 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 Sierra Vista drinking water?
EPA violation records for Sierra Vista 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 Sierra Vista?
Enter your Sierra Vista 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).