Silver Firs, WA water hardness

Tap water hardness
43mg/L
2.5gpg
Soft

Reported by Cross Valley Water District · September 2025

WA typical
36 mg/L
EPA health violations since 2016
0
Data
Utility report

Tap water in Silver Firs has about 43 mg/L of hardness, which is 2.5 grains per gallon. On the USGS scale that counts as soft. The number comes from Cross Valley Water District, dated September 2025.

Silver Firs on the hardness scale, with nearby cities
060120180240300360+WA typical 36Mill Creek East: 13 mg/LMill Creek East 13Mill Creek: 13 mg/LMill Creek 13Martha Lake: 13 mg/LMartha Lake 13Bothell East: 13 mg/LBothell East 13Lake Stickney: 13 mg/LLake Stickney 13Bothell West: 13 mg/LBothell West 13North Lynnwood: 13 mg/LNorth Lynnwood 13Maltby: 16 mg/LMaltby 16Eastmont: 22 mg/LEastmont 22Snohomish: 36 mg/LSnohomish 36Silver Firs 43mg/L as calcium carbonate060120180240300360+WA 36Mill Creek East: 13 mg/LMill Creek. 13Mill Creek: 13 mg/LMill Creek 13Martha Lake: 13 mg/LMartha Lake 13Bothell East: 13 mg/LBothell Ea. 13Maltby: 16 mg/LMaltby 16Eastmont: 22 mg/LEastmont 2243 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Silver Firs sits close to the typical Washington figure of 36 mg/L. None of the 10 nearest cities we track has harder water. The range nearby runs from 13 mg/L in Mill Creek East to 36 in Snohomish.

What 43 mg/L means at home

Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.

Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

Nothing, as far as hardness goes. At 43 mg/L a softener would have almost nothing to remove.

Carbon filter

If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.

EPA record for Silver Firs's water system

Cross Valley Water District · PWSID WA5316270

No health-based violations since 2016

Serves about 24,695 people from surface water.

Health-based
0
Monitoring or reporting
3
Open now
0

TapWaterData ties Silver Firs to this system. EPA's service-area records do not name Silver Firs, so check the utility printed on your water bill.

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is Silver Firs water hard?

No. It measures about 43 mg/L (2.5 grains per gallon), which the USGS classes as soft.

What is the water hardness in Silver Firs in grains per gallon?

About 2.5 gpg. One grain per gallon equals 17.1 mg/L, so 43 mg/L divided by 17.1 gives 2.5.

Has the Silver Firs water system had EPA violations?

EPA records show no health-based violations for Cross Valley Water District since 2016. There were also 3 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 145 cities in Washington

Hardness data: TapWaterData US Water Hardness (utility report, September 15, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.