Water softeners and filtration in Detroit, MI

What does Detroit Water and Sewerage Department publish about Detroit water?

The Great Lakes Water Authority treats water from the Detroit River and Lake Huron, and the Detroit Water and Sewerage Department delivers it.

What does 96 to 142 mg/L mean for a Detroit home?

96 to 142 mg/L is about 5.6 to 8.3 grains per gallon. The low end, 96 mg/L, is 24 mg/L under the 120 mg/L top of the USGS moderately hard class; Detroit's high end, 142 mg/L, is 38 mg/L under the 180 mg/L top of the USGS hard class. (USGS hardness classes)

Which systems fit Detroit water?

How does a Detroit quote work?

1. Send a request from one of the 29 Detroit ZIP codes listed below.
2. An assessment at your home, where your tap can be checked against Detroit Water and Sewerage Department's published 96 to 142 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 Detroit?

Total hardness reported by Detroit Water and Sewerage Department: Average 107 ppm, range 96-142 ppm (Calendar year 2025).

Is Detroit water hard or soft?

Moderately hard to hard. The low end, 96 mg/L, is 24 mg/L under the 120 mg/L top of the USGS moderately hard class; Detroit's high end, 142 mg/L, is 38 mg/L under the 180 mg/L top of the USGS hard class.

How many grains per gallon is Detroit water?

The utility publishes hardness in mg/L, not grains. The published 96 to 142 mg/L is about 5.6 to 8.3 grains per gallon, converted by us at 17.1 mg/L per grain.

Which utility supplies water in Detroit?

The Great Lakes Water Authority treats the water and moves it to the city, and the Detroit Water and Sewerage Department delivers it to neighborhoods. Source: DWSD 2025 Water Quality Report.

Where does Detroit tap water come from?

Detroit homes get Detroit River water treated at four Great Lakes Water Authority plants. Source: DWSD 2025 Water Quality Report.

Is Detroit water treated with chlorine or chloramine?

The Detroit report lists a chlorine residual added to control microbes, ranging 0.59 to 1.08 ppm in 2025. It does not mention chloramine. Source: DWSD 2025 Water Quality Report. A softener does not remove it.

Do I need a water softener in Detroit?

Detroit Water and Sewerage Department publishes 96 to 142 mg/L for Detroit, which reads as moderately hard to hard. A test at your house shows whether your tap matches it.

Is the water the same in every Detroit home?

Detroit Water and Sewerage Department publishes one figure for its whole system (Calendar year 2025).

How much does a water softener cost in Detroit?

We publish no prices for Detroit. 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 Detroit yet. We will tell you the company's name and ask you before your request is shared with anyone.

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

No. Detroit Water Systems is not affiliated with Detroit Water and Sewerage Department; 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?

48201, 48202, 48203, 48204, 48205, 48206, 48207, 48208, 48209, 48210, 48211, 48212, 48213, 48214, 48215, 48216, 48217, 48219, 48221, 48223, 48224, 48226, 48227, 48228, 48233, 48234, 48235, 48238, 48243

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

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