Spokane, Washington

City of Spokane Water Department 2024 Consumer Confidence Report. The opened 2024 Water Quality Report does not print a usable hardness-as-CaCO3 number. This file does not invent one. The City adds chlorine so purity is maintained throughout the distribution system. A residual average was not printed on the opened 2024 booklet. No Measure S-style residential softener ban turned up.

This city’s report did not print a number we can put on the chart. Open the current water-quality report. We do not invent a value.

Best match for Spokane

Whole-house carbon for chlorine

A single black whole-house carbon tank with a control head, installed in a garage and connected to copper pipe.
Whole-house carbon tank. No brine tank.

That is chlorine. A whole-house carbon filter with an NSF/ANSI 42 chlorine claim is the usual match. A softener will not take chlorine out.

Shop whole-house carbon

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On the report

Water utility
City of Spokane Water Department
Hardness
The opened 2024 Water Quality Report does not print a usable hardness-as-CaCO3 number. This file does not invent one. — City of Spokane Water Department 2024 Consumer Confidence Report
Disinfectant
The City adds chlorine so purity is maintained throughout the distribution system. A residual average was not printed on the opened 2024 booklet. — City of Spokane Water Department 2024 Consumer Confidence Report
Brine / salt to the sewer
No district prohibition found in current research. Searched city water and sewer pages for a residential self-regenerating softener or brine-drain ban like LACSD Measure S. None turned up. Ask the sewer agency on the bill before you cut a brine drain.

Also around here

Extra context besides the utility report and the chart above — geology, an unregulated table, or a published study. Not a second set of printed tap numbers.

Spokane drinking water on this file is City of Spokane Water Department. Searched city water and sewer pages for a residential self-regenerating softener or brine-drain ban like LACSD Measure S. None turned up. Ask the sewer agency on the bill before you cut a brine drain. This is not a legal opinion.

The 2024 report prints The opened 2024 Water Quality Report does not print a usable hardness-as-CaCO3 number. This file does not invent one. The City adds chlorine so purity is maintained throughout the distribution system. A residual average was not printed on the opened 2024 booklet. Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.

Sources

  1. 2024 Consumer Confidence Report — City of Spokane Water Department. Accessed 2026-09-11.

Updated September 11, 2026. A city file is chemistry we can cite plus the sewer rule. No invented detections.