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
- Hardness12.8 mg/L (0.75 gpg)
Best match for Sekiu
Whole-house carbon — match chlorine vs chloramine
No district prohibition on a brine drain turned up in the current file.

Open the CCR for chlorine vs chloramine, then match that claim. A 42 chlorine listing is not chloramine.
Also for the kitchen
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
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.
Softener vs carbon vs under-sink RO
A sketch for Sekiu, tied to this file’s best match. Not a quote.
| Box | What it does | Ballpark (estimate) |
|---|---|---|
| Salt-based softener | Removes 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 match | Chlorine 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 match | Kitchen 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.
- MicroplasticsWHO’s 2019 review examined studies that found microplastic particles in treated tap and bottled water in many places. That is a published-occurrence finding, not a number from this city’s water-quality report, and we do not invent a particles-per-liter count for the tap.Microplastics in drinking-water — World Health Organization
- PFASEPA’s Fifth Unregulated Contaminant Monitoring Rule required community systems this size to test 29 PFAS and lithium in 2023–2025. Open the UCMR 5 Data Finder for this PWS. This file does not invent a detection.Fifth Unregulated Contaminant Monitoring Rule — U.S. Environmental Protection Agency
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
- 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.