# Tucson Water Systems by My Home Water System

> Published water hardness for Tucson, AZ, copied from the utility's own reports, and a way to request a written water treatment quote from one local company. Not a water utility.

## Water facts, as published
- Hardness, as Tucson Water describes it, Tucson Water: "Hard to very hard" (no number given) (Undated document). Source: Tucson Water: Water Quality Parameter Explanation, https://www.tucsonaz.gov/files/sharedassets/public/v/1/city-services/tucson-water/water-quality/parameter-explanation-table.pdf
- Tucson Water shows hardness by address on an interactive map that we could not read, and its 2023 and 2025 reports list hardness as monitored without a value.
- Tucson Water keeps a chlorine residual of 0.80 to 1.2 mg/L through its pipes. Source: Tucson Water 2025 Consumer Confidence Report, https://www.tucsonaz.gov/files/sharedassets/public/v/1/city-services/tucson-water/water-quality/report-archive/ccr_mainsystem_2025.pdf
- Most Tucson water is Colorado River water delivered by the Central Arizona Project, soaked into the ground in Avra Valley and at Pima Mine Road and pumped back out, plus groundwater from the Central Well Field. Source: Tucson Water 2025 Consumer Confidence Report, https://www.tucsonaz.gov/files/sharedassets/public/v/1/city-services/tucson-water/water-quality/report-archive/ccr_mainsystem_2025.pdf
- Tucson Water says hardness rises as the share of Central Arizona Project water rises. Source: Tucson Water hard water page, https://www.tucsonaz.gov/Departments/Water/Water-Quality/Aesthetics/Hard-Water
- Sources last checked: 2026-10-27

## Pages
- [Tucson water and quotes](https://tucsonwatersystems.com/): the answer, the sources, common questions
- [Water data as JSON](https://tucsonwatersystems.com/water.json)
- [Water softeners](https://www.myhomewatersystem.com/water-softeners/), [whole-home filtration](https://www.myhomewatersystem.com/whole-home-filtration/), [reverse osmosis](https://www.myhomewatersystem.com/reverse-osmosis/)
- [Hard water by city](https://www.myhomewatersystem.com/hard-water-by-city/): published hardness for every city we cover

## Status
- Not taking requests yet. No prices are published; quotes come after an assessment at the home.
- Run by My Home Water System, operated by Aidren LLC.