West Richland, WA water hardness

Tap water hardness
33mg/L
1.9gpg
SoftReports range 12–33

Reported by West Richland City of · August 2025

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

The water in West Richland carries roughly 33 mg/L of dissolved calcium and magnesium, or 1.9 grains per gallon. That is soft water. The number comes from West Richland City of, dated August 2025. Reports for this system disagree, with values from 12 to 33 mg/L.

West Richland on the hardness scale, with nearby cities
060120180240300360+WA typical 36Union Gap: 31 mg/LUnion Gap 31Othello: 33 mg/LOthello 33Walla Walla: 39 mg/LWalla Walla 39Toppenish: 63 mg/LToppenish 63Terrace Heights: 88 mg/LTerrace Heights 88Richland: 89 mg/LRichland 89Kennewick: 96 mg/LKennewick 96Finley: 96 mg/LFinley 96Grandview: 208 mg/LGrandview 208Pasco: 268 mg/LPasco 268West Richland 33mg/L as calcium carbonate060120180240300360+WA 36Othello: 33 mg/LOthello 33Richland: 89 mg/LRichland 89Kennewick: 96 mg/LKennewick 96Finley: 96 mg/LFinley 96Grandview: 208 mg/LGrandview 208Pasco: 268 mg/LPasco 26833 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

West Richland sits close to the typical Washington figure of 36 mg/L. Of the 10 nearest cities we track, 1 has softer water and 8 have harder. The range nearby runs from 31 mg/L in Union Gap to 268 in Pasco.

What 33 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 33 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 West Richland's water system

West Richland City of · PWSID WA5394900

No health-based violations since 2016

Serves about 21,231 people from surface water.

Health-based
0
Monitoring or reporting
3
Open now
0

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 West Richland water hard?

No. It measures about 33 mg/L (1.9 grains per gallon), which the USGS classes as soft.

What is the water hardness in West Richland in grains per gallon?

About 1.9 gpg. One grain per gallon equals 17.1 mg/L, so 33 mg/L divided by 17.1 gives 1.9.

Has the West Richland water system had EPA violations?

EPA records show no health-based violations for West Richland City of 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, August 2, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.