Crescent City, California

City of Crescent City 2023 annual water quality report (Water Boards 2024 filing), PWS CA0810001. Hardness 48 ppm (sample 6/7/2023). Chlorine residual 1.05 ppm (0.04–1.97). No Measure S-style ban turned up — check the sewer agency on the bill.

Cited chemistry for Crescent CityA chart of numbers printed on the utility report, each labeled with its unit. Missing numbers are left off.Hardness48 ppm (6/7/2023)Chlorine residual1.05 ppm (0.04–1.97)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. Hardness48 ppm (6/7/2023)
  2. Chlorine residual1.05 ppm (0.04–1.97)

Best match for Crescent City

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

Some links are affiliate links. If you buy through one, we may earn a commission. That does not change the match, and it is not a medical claim.

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Other options that still fit

  • Do not buy a softener on this supply

    This supply is soft on the published numbers. A salt tank is usually the wrong box unless you are on a well or a different utility. Test the tap before you buy hardness equipment.

    Shop water test kits

  • Under-sink reverse osmosis

    The under-sink RO we actually run is Cloud RO — NSF/ANSI 58, kitchen tap, not a whole-house tank. Check the exact listing if PFAS is why you are shopping. Shop Amazon first for under-sink RO, or buy Cloud direct. Waterdrop is a tankless option if you want that path. A certifier-listed pitcher is the cheap first step. Nobody is paying for a medical claim.

    Shop under-sink reverse osmosisBuy Cloud RO directShop Waterdrop reverse osmosisShop PFAS-listed pitchers

On the report

Water utility
City of Crescent City Public Works
Hardness
Hardness 48 ppm, sample date 6/7/2023. Sum of polyvalent cations present in the water. Quoted as printed. — City of Crescent City 2023 Annual Water Quality Report
Disinfectant
Chlorine residual 1.05 ppm (range 0.04–1.97). — City of Crescent City 2023 Annual 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.

Crescent City drinking water on this file is City of Crescent City Public Works, PWS CA0810001. 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 opened report prints hardness 48 ppm (sample 6/7/2023). Chlorine residual 1.05 ppm (0.04–1.97). Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.

Sources

  1. 2023 Annual Water Quality Report (PWS CA0810001) — City of Crescent City / 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.