Sekiu, Washington

Sekiu CDP water on the opened Clallam Bay/Sekiu Water District 2025 Water Quality Report (DOH 13200F). Hardness printed with labeled grains. A residual-disinfectant average did not print. This file does not invent one.

Washington · Salt-softener legality

Cited chemistry for SekiuA chart of numbers printed on the utility report, each labeled with its unit. Missing numbers are left off.Hardness12.8 mg/L (0.75 gpg)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. Hardness12.8 mg/L (0.75 gpg)

Best match for Sekiu

Whole-house carbon — match chlorine vs chloramine

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.

Open the CCR for chlorine vs chloramine, then match that claim. A 42 chlorine listing is not chloramine.

Shop whole-house carbonShop catalytic carbon for chloramine

Also for the kitchen

Under-sink reverse osmosis

Under-sink reverse osmosis system with a white storage tank, filter canisters, and colored tubing in a kitchen cabinet.
Under-sink reverse osmosis: filters, tank, and a second faucet.

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

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.

As an Amazon Associate we earn from qualifying purchases.

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

Softener vs carbon vs under-sink RO

A sketch for Sekiu, tied to this file’s best match. Not a quote.

BoxWhat it doesBallpark (estimate)
Salt-based softenerRemoves hardness. Needs a drain. Illegal in some sewer districts.About $800–$2,500 for a common residential unit (equipment). Installed jobs run higher.
Whole-house carbonThis file’s matchChlorine or chloramine taste — match the listing. Does not soften.About $400–$1,800 for a typical tank-and-head kit (equipment).
Under-sink reverse osmosisThis file’s matchKitchen tap. Check NSF/ANSI 58 if PFAS or nitrate is why you are shopping.About $200–$600 on Amazon search; named under-sink units vary.

These are ballpark equipment ranges, not installed quotes and not what a dealer will write on a kitchen-table sheet. Prices move. Confirm the sewer rule before you price a brine tank.

On the report

Water utility
CLALLAM BAY/SEKIU WATER DISTRICT
Hardness
2022 narrative on the 2025 report: hardness 12.8 mg/L or 0.75 grains per gallon. — Clallam Bay/Sekiu Water District 2025 Water Quality Report (DOH 13200F)
Disinfectant
The opened 2025 report says chlorine residual was detectable in all monthly samples. A residual-disinfectant average did not print. This file does not invent one. — Clallam Bay/Sekiu Water District 2025 Water Quality Report (DOH 13200F)
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.

Sekiu drinking water on this file is CLALLAM BAY/SEKIU WATER DISTRICT (DOH 13200F), operated by Public Utility District No. 1 of Clallam County. The opened 2025 report names the Clallam Bay/Sekiu area and the 100,000-gallon Sekiu Reservoir. 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 opened 2025 report prints hardness of 12.8 mg/L or 0.75 grains per gallon from a 2022 sample. It does not print a residual-disinfectant average. This file does not invent one. Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.

Questions this file can answer

How hard is Sekiu tap water?

2022 narrative on the 2025 report: hardness 12.8 mg/L or 0.75 grains per gallon. Source on the file: Clallam Bay/Sekiu Water District 2025 Water Quality Report (DOH 13200F).

Does Sekiu use chlorine or chloramine?

The opened 2025 report says chlorine residual was detectable in all monthly samples. A residual-disinfectant average did not print. This file does not invent one. Source on the file: Clallam Bay/Sekiu Water District 2025 Water Quality Report (DOH 13200F).

Is a salt-based water softener legal in Sekiu?

No district prohibition found in the current file. 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. No district prohibition on a brine drain turned up in the current file. This is not a legal opinion.

What treatment does this Sekiu file match?

Best match on this file: Whole-house carbon — match chlorine vs chloramine. Open the CCR for chlorine vs chloramine, then match that claim. A 42 chlorine listing is not chloramine.

Sources

  1. Clallam Bay/Sekiu Water District 2025 Water Quality Report (DOH 13200F) — Public Utility District No. 1 of Clallam County. Accessed 2026-09-12.

Updated September 12, 2026. A city file is chemistry we can cite plus the sewer rule. No invented detections.