# Indianapolis Water Systems by My Home Water System

> Published water hardness for Indianapolis, IN, 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, Citizens Energy Group: Average 317 ppm (19 grains per gallon), range 148-460 ppm (Calendar year 2025). Source: 2025 Drinking Water Report (Citizens Energy Group, 2025 Water Quality Report), https://info.citizensenergygroup.com/hubfs/site/water/2025%20Citizens%20Water%20Quality%20Report.pdf
- USGS class, our reading of the published figures: hard to very hard. Classes: https://www.usgs.gov/water-science-school/science/hardness-water
- The same 2025 report also says hardness averages 320 mg/L in its text.
- Citizens Energy Group adds chlorine and a small amount of ammonia, and lists chloramine as the additive that controls microbes. Source: Citizens Energy Group 2025 Water Quality Report, https://info.citizensenergygroup.com/hubfs/site/water/2025%20Citizens%20Water%20Quality%20Report.pdf
- Most Indianapolis water is surface water from the West Fork of the White River, Fall Creek and Eagle Creek Reservoir, with Morse and Geist reservoirs, plus groundwater from wells. Source: Citizens Energy Group 2025 Water Quality Report, https://info.citizensenergygroup.com/hubfs/site/water/2025%20Citizens%20Water%20Quality%20Report.pdf
- Citizens says hardness varies with the source water feeding each treatment plant, so it can differ by where you live. Source: Citizens Energy Group 2025 Water Quality Report, https://info.citizensenergygroup.com/hubfs/site/water/2025%20Citizens%20Water%20Quality%20Report.pdf
- Sources last checked: 2026-10-27

## Pages
- [Indianapolis water and quotes](https://indianapoliswatersystems.com/): the answer, the sources, common questions
- [Water data as JSON](https://indianapoliswatersystems.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
- Taking requests. No prices are published; quotes come after an assessment at the home.
- Run by My Home Water System, operated by Aidren LLC.