Water softeners and filtration in Mesa, AZ

What does City of Mesa publish about Mesa water?

Mesa's water service is split into three zones, and hardness depends on which zone you are in.

• The City Zone gets Salt River Project water from the Salt and Verde Rivers. The Eastern and Southern Zones get Central Arizona Project water from the Colorado River. Groundwater wells supply all zones.
• Mesa's undated water quality concerns page gives a wider range of 12 to 22 grains per gallon depending on the source serving the area.

Mesa water by zone: where each one serves, its own figures and how it is treated.

What does 205 to 274 mg/L mean for a Mesa home?

205 to 274 mg/L is about 12.0 to 16.0 grains per gallon. The low end, 205 mg/L, is 25 mg/L over the 180 mg/L line where the USGS very hard class starts; Mesa's high end, 274 mg/L, is 94 mg/L over the 180 mg/L line where the USGS very hard class starts. (USGS hardness classes)

Which systems fit Mesa water?

How does a Mesa quote work?

1. Send a request from one of the 13 Mesa ZIP codes listed below.
2. An assessment at your home, where your tap can be checked against City of Mesa's published 205 to 274 mg/L.
3. You get a written quote listing what is included.
4. Installation and service by that company.

Common questions

How hard is the water in Mesa?

Average hardness, City Zone reported by City of Mesa: About 12 grains per gallon (Calendar year 2025). Average hardness, Eastern and Southern Zones reported by City of Mesa: 16 grains per gallon (Calendar year 2025).

Is Mesa water hard or soft?

Very hard. The low end, 205 mg/L, is 25 mg/L over the 180 mg/L line where the USGS very hard class starts; Mesa's high end, 274 mg/L, is 94 mg/L over the 180 mg/L line where the USGS very hard class starts.

How many grains per gallon is Mesa water?

In grains per gallon, as published: 12 grains per gallon (City of Mesa, average hardness, city zone, Calendar year 2025); 16 grains per gallon (City of Mesa, average hardness, eastern and southern zones, Calendar year 2025).

Does Mesa water change over time?

Mesa says every zone may get groundwater or a blend of surface water and groundwater at different times of the year, and some customers get only well water at times. Source: Mesa 2025 Water Quality Consumer Confidence Report.

Is Mesa water treated with chlorine or chloramine?

Mesa disinfects with chlorine dioxide and chlorine before water enters its pipes. Source: Mesa 2025 Water Quality Consumer Confidence Report. A softener does not remove it.

How does Mesa water compare with nearby cities?

Published hardness in Mesa spans 205 to 274 mg/L (converted from grains). Nearby: Chandler 173 to 288 mg/L; Gilbert 113 to 300 mg/L (converted from grains); Scottsdale 215 to 290 mg/L; Phoenix 172 to 302 mg/L.

Do I need a water softener in Mesa?

City of Mesa publishes 205 to 274 mg/L for Mesa, which reads as very hard. A test at your house shows whether your tap matches it.

Is the water the same in every Mesa home?

2 published figures cover Mesa, from 1 utility; which applies depends on where you live. The water-by-area page breaks Mesa down further.

How much does a water softener cost in Mesa?

We publish no prices for Mesa. The installing company gives a written quote after an assessment at your home.

Who installs the system?

We have not named a local installing company for Mesa yet. We will tell you the company's name and ask you before your request is shared with anyone.

Is Mesa Water Systems part of the city or the water utility?

No. Mesa Water Systems is not affiliated with City of Mesa; it copies and links the published figures.

Is booking an assessment a purchase?

No, and a request commits you to nothing.

Which ZIP codes does this page cover?

85201, 85202, 85203, 85204, 85205, 85206, 85207, 85208, 85209, 85210, 85212, 85213, 85215

Nearby cities

Chandler, Gilbert, Scottsdale.

Compare published hardness in other cities on hard water by city.

Machine-readable facts: water.json. Summary for AI assistants: llms.txt.