# Denver Water Systems by My Home Water System

> Published water hardness for Denver, CO, 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
- Total hardness, Denver Water: Average 105,009 ppb, range 55,000-124,000 ppb (Calendar year 2025). Source: 2026 Water Quality Report, https://www.denverwater.org/sites/default/files/water-quality-report-2026.pdf
- Hardness, as Denver Water describes it, Denver Water: "Soft to moderately hard" (Undated web page). Source: Denver Water: Water Hardness, https://www.denverwater.org/your-water/water-quality/water-hardness
- USGS class, our reading of the published figures: soft to hard. Classes: https://www.usgs.gov/water-science-school/science/hardness-water
- Denver Water publishes hardness in parts per billion. 1,000 ppb equals 1 ppm, so its 2025 range is 55 to 124 ppm. Its own description, soft to moderately hard, is milder than the USGS class for the top of that range.
- Denver Water adds chloramine after filtration to keep the water disinfected. Source: Denver Water treated water quality summary, https://www.denverwater.org/your-water/water-quality/treated-water-quality-summary
- Denver Water draws on rivers, streams, reservoirs and springs fed by mountain snowmelt, gathered through a north and a south collection system. Source: Denver Water 2026 Water Quality Report, https://www.denverwater.org/sites/default/files/water-quality-report-2026.pdf
- Denver Water says its water is slightly harder in winter, when waterways and reservoirs freeze, and softer from late spring through fall, when runoff dilutes the minerals. Source: Denver Water water hardness page, https://www.denverwater.org/your-water/water-quality/water-hardness
- Sources last checked: 2026-10-27

## Pages
- [Denver water and quotes](https://denverwatersystems.com/): the answer, the sources, common questions
- [Water data as JSON](https://denverwatersystems.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.