Sierra Vista, AZ Water Quality Report

Is Sierra Vista tap water safe? See PFAS and lead contamination levels for Sierra Vista, Arizona. Compare to EPA limits and get filter recommendations.

Quick Answers

Is Sierra Vista, AZ tap water safe to drink? Sierra Vista, AZ tap water meets most federal EPA limits, but PFAS compounds have been detected at an average of 0.01 ppt across 8 compounds. A certified pitcher filter or reverse osmosis system is recommended for sensitive populations.

What contaminants are in Sierra Vista, AZ water? Top PFAS compounds detected in Sierra Vista water: PFOS (0.04 ppt), PFBS (0.02 ppt), PFPeA (0.01 ppt). See the full table for all monitored contaminants and comparison to EPA limits.

What filter should I use in Sierra Vista, AZ? For Sierra Vista, AZ households, reverse osmosis removes 90%+ of PFAS, lead, and arsenic. NSF-53 certified pitcher and faucet filters (ZeroWater, Clearly Filtered, LifeStraw) work for smaller households. Skip standard Brita filters for PFAS removal.

Sierra Vista, AZ Water Quality Summary

EPA testing has detected PFAS "forever chemicals" in Sierra Vista, AZ drinking water. Recent monitoring found a peak level of 0.04 ppt across 4 water systems, representing an average of 0.01 ppt across 8 detected compounds.

Contamination Level: LOW – Low contamination – PFAS detected but at lower levels; monitoring continues.

Top Detected Compounds

  • PFOS: 0.04 ppt
  • PFBS: 0.02 ppt
  • PFPeA: 0.01 ppt
  • PFOA: 0.01 ppt
  • PFHxS: 0.01 ppt

Lead in Sierra Vista, AZ Water

EPA Lead and Copper Rule testing has recorded 60 lead samples for Sierra Vista water systems, with a 90th-percentile high of 0.0065 mg/L (within the EPA 0.015 mg/L action level). There is no safe level of lead for children; if your home was built before 1986, a certified NSF/ANSI 53 lead-removal filter is recommended.

EPA Violations in Sierra Vista, AZ

Sierra Vista public water systems have 15 health-based EPA Safe Drinking Water Act violations on record, including Chromium. Health-based violations mean a contaminant exceeded its federal limit or required treatment was not applied.

About the Data

Source: EPA UCMR5 (Unregulated Contaminant Monitoring Rule 5), the 2023-2025 national testing program spanning 66,000+ public water systems – the broadest drinking water survey ever run in the US. Sierra Vista, AZ serves a population of roughly 44,857.

ZIP Codes Served

85613, 85635, 85650

What Sierra Vista, Arizona Residents Should Do

  1. Enter your exact ZIP code at knowyourexposure.com for address-level data
  2. Request the latest Consumer Confidence Report (CCR) from your Arizona utility – it is free and updated annually
  3. Choose a filter certified for PFAS: NSF/ANSI 58 reverse osmosis (94-99% removal) or an NSF-53 pitcher
  4. High-exposure households (pregnancy, infants, immunocompromised) should also consider a PFAS home test kit