Marysville, California

California Water Service — Marysville 2025 Consumer Confidence Report. Hardness (total) 240 ppm (160–343), 2023–2025. The booklet also prints an average hardness of 240 ppm. The row is not labeled CaCO3 — this file does not invent grains. Free chlorine 0.75 ppm (0.20–1.9), MRDL 4, 2025. No Measure S-style ban turned up — check the sewer agency on the bill.

Cited chemistry for MarysvilleA chart of numbers printed on the utility report, each labeled with its unit. Missing numbers are left off.Free chlorine0.75 ppm (0.20–1.9)WQR
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. Free chlorine0.75 ppm (0.20–1.9)

Best match for Marysville

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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Other options that still fit

On the report

Water utility
California Water Service — Marysville
Hardness
Hardness (total) 240 ppm (160–343), 2023–2025. The booklet also prints an average hardness of 240 ppm. The row is not labeled CaCO3 — this file does not invent grains. — California Water Service Marysville 2025 Water Quality Report
Disinfectant
Free chlorine 0.75 ppm (0.20–1.9), MRDL 4, 2025. — California Water Service Marysville 2025 Water Quality Report
Brine / salt to the sewer
Check the sanitation district before installing. No city or sanitation-district residential self-regenerating softener ban like LACSD Measure S or IEUA Ordinance § 2.6 turned up on the pages we opened. That is not a statewide ban finding. Ask the agency on the sewer 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.

Marysville drinking water on this file is California Water Service — Marysville, PWS CA5810001. No city or sanitation-district residential self-regenerating softener ban like LACSD Measure S or IEUA Ordinance § 2.6 turned up on the pages we opened. That is not a statewide ban finding. Ask the agency on the sewer bill before you cut a brine drain. This is not a legal opinion.

The 2025 report prints Hardness (total) 240 ppm (160–343), 2023–2025. The booklet also prints an average hardness of 240 ppm. The row is not labeled CaCO3 — this file does not invent grains. Free chlorine 0.75 ppm (0.20–1.9), MRDL 4, 2025. Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.

Sources

  1. 2025 Consumer Confidence Report (PWS CA5810001) — California Water Service — Marysville / State Water Resources Control Board. Accessed 2026-09-11.

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