Milton, WA water hardness

Tap water hardness
38mg/L
2.2gpg
SoftReports range 38–84

Reported by Lakehaven Water and Sewer District · March 2025

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

The water in Milton carries roughly 38 mg/L of dissolved calcium and magnesium, or 2.2 grains per gallon. That is soft water. The number comes from Lakehaven Water and Sewer District, dated March 2025. Reports for this system disagree, with values from 38 to 84 mg/L.

Milton on the hardness scale, with nearby cities
060120180240300360+WA typical 36Waller: 22 mg/LWaller 22Summit: 22 mg/LSummit 22Tacoma: 22 mg/LTacoma 22Puyallup: 29 mg/LPuyallup 29Federal Way: 31 mg/LFederal Way 31Lakeland South: 38 mg/LLakeland South 38Pacific: 39 mg/LPacific 39Lakeland North: 48 mg/LLakeland North 48Auburn: 58 mg/LAuburn 58Lake Tapps: 95 mg/LLake Tapps 95Milton 38mg/L as calcium carbonate060120180240300360+WA 36Waller: 22 mg/LWaller 22Summit: 22 mg/LSummit 22Puyallup: 29 mg/LPuyallup 29Federal Way: 31 mg/LFederal Way 31Lakeland South: 38 mg/LLakeland S. 38Pacific: 39 mg/LPacific 3938 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Milton sits close to the typical Washington figure of 36 mg/L. Of the 10 nearest cities we track, 5 have softer water and 4 have harder. The range nearby runs from 22 mg/L in Waller to 95 in Lake Tapps.

What 38 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 38 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 Milton's water system

Milton City of · PWSID WA5354950

No health-based violations since 2016

Serves about 8,078 people from groundwater.

Health-based
0
Monitoring or reporting
2
Open now
0

EPA lists Milton City of as the system serving Milton. The hardness figure above comes from a different system's report, which TapWaterData uses for Milton.

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 Milton water hard?

No. It measures about 38 mg/L (2.2 grains per gallon), which the USGS classes as soft.

What is the water hardness in Milton in grains per gallon?

About 2.2 gpg. One grain per gallon equals 17.1 mg/L, so 38 mg/L divided by 17.1 gives 2.2.

Has the Milton water system had EPA violations?

EPA records show no health-based violations for Milton City of since 2016. There were also 2 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, March 14, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.