Tigard, OR water hardness

Tap water hardness
22mg/L
1.3gpg
Soft

Reported by Tigard, City of · June 2025

OR typical
24 mg/L
EPA health violations since 2016
0
Data
Utility report

Tap water in Tigard has about 22 mg/L of hardness, which is 1.3 grains per gallon. On the USGS scale that counts as soft. The number comes from Tigard, City of, dated June 2025.

Tigard on the hardness scale, with nearby cities
060120180240300360+OR typical 24Bull Mountain: 22 mg/LBull Mountain 22Garden Home-Whitford: 23 mg/LGarden Home-Whitford 23Aloha: 23 mg/LAloha 23Lake Oswego: 26 mg/LLake Oswego 26Beaverton: 35 mg/LBeaverton 35Raleigh Hills: 35 mg/LRaleigh Hills 35West Slope: 35 mg/LWest Slope 35Cedar Hills: 35 mg/LCedar Hills 35Tualatin: 77 mg/LTualatin 77Sherwood: 77 mg/LSherwood 77Tigard 22mg/L as calcium carbonate060120180240300360+OR 24Bull Mountain: 22 mg/LBull Mount. 22Garden Home-Whitford: 23 mg/LGarden Hom. 23Lake Oswego: 26 mg/LLake Oswego 26Beaverton: 35 mg/LBeaverton 35Raleigh Hills: 35 mg/LRaleigh Hi. 35Tualatin: 77 mg/LTualatin 7722 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 22 mg/L, Tigard is close to the typical Oregon figure of 24 mg/L. None of the 10 nearest cities we track has softer water. The range nearby runs from 22 mg/L in Bull Mountain to 77 in Tualatin.

What 22 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 22 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 Tigard's water system

Tigard, City of · PWSID OR4100878

No health-based violations since 2016

Serves about 62,500 people from surface water.

Health-based
0
Monitoring or reporting
14
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 Tigard water hard?

No. It measures about 22 mg/L (1.3 grains per gallon), which the USGS classes as soft.

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

About 1.3 gpg. One grain per gallon equals 17.1 mg/L, so 22 mg/L divided by 17.1 gives 1.3.

Has the Tigard water system had EPA violations?

EPA records show no health-based violations for Tigard, City of since 2016. There were also 14 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 53 cities in Oregon

Hardness data: TapWaterData US Water Hardness (utility report, June 27, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.