Missoula, Montana

City of Missoula Water 2024 Consumer Confidence Report. Hardness 45 / 38 / 55 / 203.2 / 174 / 254 / 500 / 5 on a labeled hardness row in the 2024 tables. The row is not labeled as CaCO3 in the extracted text, so this file does not assign a hardness class from it. The 2024 booklet lists chlorine as the residual disinfectant. A single residual average did not extract cleanly from the text layer. Open the current report. No Measure S-style residential softener ban turned up.

Cited chemistry for MissoulaA chart of numbers printed on the utility report, each labeled with its unit. Missing numbers are left off.Hardness (printed row)45 / 38 / 55 / 203.2 / 174 / 254 / 500 / 5WQR
Cited numbers from the utility report. Length follows the printed value against a labeled scale — not a health ranking. If the report has no number, it is not on the chart.
  1. Hardness (printed row)45 / 38 / 55 / 203.2 / 174 / 254 / 500 / 5

Best match for Missoula

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.

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Other options that still fit

On the report

Water utility
City of Missoula Water
Hardness
Hardness 45 / 38 / 55 / 203.2 / 174 / 254 / 500 / 5 on a labeled hardness row in the 2024 tables. The row is not labeled as CaCO3 in the extracted text, so this file does not assign a hardness class from it. — City of Missoula Water 2024 Consumer Confidence Report
Disinfectant
The 2024 booklet lists chlorine as the residual disinfectant. A single residual average did not extract cleanly from the text layer. Open the current report. — City of Missoula Water 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.

Missoula drinking water on this file is City of Missoula Water. 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 Hardness 45 / 38 / 55 / 203.2 / 174 / 254 / 500 / 5 on a labeled hardness row in the 2024 tables. The row is not labeled as CaCO3 in the extracted text, so this file does not assign a hardness class from it. The 2024 booklet lists chlorine as the residual disinfectant. A single residual average did not extract cleanly from the text layer. Open the current report. 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 Missoula Water. Accessed 2026-09-11.

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