Is the tap water safe to drink in Rillito, AZ?

Rillito's public water supply meets federal drinking-water standards on record per EPA SDWIS. Water is very hard, which causes scale and dry skin. A water test confirms what's actually coming out of your tap.

What's the Water Score for Rillito?

Rillito scores 100/100 (Good) on our Water Score, based on contaminants detected, severity vs. health guidelines, and water hardness.

Pima County · Arizona · EPA SDWIS 2026Q2

Rillito Water Quality

0Good

Meets federal standards on record. Water is very hard.

Get my free water test→

A clean record — with one caveat

Rillito's public supply meets federal drinking-water standards on record. That covers the contaminants the EPA requires utilities to report — it does notmeasure hardness, lead from your home's plumbing, or what happens between the treatment plant and your tap.

Local water here is very hard. Hardness drives scale on fixtures, shorter appliance life, and dry skin and hair.

The only way to know what's in your water is to test it. We do it free, in 30 minutes, with no sales pitch.

Source: EPA SDWIS · 2026Q2