How hard is the water in Lake Elsinore, CA?

Tap water hardness
111mg/L
6.5gpg
Moderately hardReports range 25–111

Reported by Elsinore Valley MWD · September 2025

CA typical
121 mg/L
EPA health violations since 2016
0
Softener for 3 people
24k grain
Data
Utility report

Tap water in Lake Elsinore has about 111 mg/L of hardness, which is 6.5 grains per gallon. On the USGS scale that counts as moderately hard. The number comes from Elsinore Valley MWD, dated September 2025. Reports for this system disagree, with values from 25 to 111 mg/L.

Lake Elsinore on the hardness scale, with nearby cities
060120180240300360+CA typical 121Lakeland Village: 111 mg/LLakeland Village 111Wildomar: 111 mg/LWildomar 111Canyon Lake: 118 mg/LCanyon Lake 118Good Hope: 120 mg/LGood Hope 120Menifee: 120 mg/LMenifee 120Perris: 120 mg/LPerris 120Homeland: 120 mg/LHomeland 120Mead Valley: 122 mg/LMead Valley 122Murrieta: 132 mg/LMurrieta 132Lake Mathews: 140 mg/LLake Mathews 140Lake Elsinore 111mg/L as calcium carbonate060120180240300360+CA 121Lakeland Village: 111 mg/LLakeland V. 111Wildomar: 111 mg/LWildomar 111Canyon Lake: 118 mg/LCanyon Lake 118Good Hope: 120 mg/LGood Hope 120Menifee: 120 mg/LMenifee 120Perris: 120 mg/LPerris 120111 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 111 mg/L, Lake Elsinore is close to the typical California figure of 121 mg/L. None of the 10 nearest cities we track has softer water. The range nearby runs from 111 mg/L in Lakeland Village to 140 in Lake Mathews.

What 111 mg/L means at home

You may see faint white spots on glasses and shower doors after the water dries.

Scale builds up slowly. A kettle or coffee maker needs descaling now and then, maybe every few months.

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

Optional. Plenty of households at this level live with it and descale the kettle now and then.

Water softener

Worth a look if spots on glass bother you, or if your tankless water heater manual asks for softer water.

Carbon filter

Improves taste and removes chlorine. It leaves calcium and magnesium in place.

Softener size for Lake Elsinore

3 people × 75 gallons a day × 6.5 gpg = 1,460 grains a day. A 24,000-grain unit regenerates about every 16 days.

Size it for your household

EPA record for Lake Elsinore's water system

Elsinore Valley MWD · PWSID CA3310012

No health-based violations since 2016

Serves about 169,455 people from surface water.

Health-based
0
Monitoring or reporting
0
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 Lake Elsinore water hard?

Somewhat. It measures about 111 mg/L (6.5 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Lake Elsinore in grains per gallon?

About 6.5 gpg. One grain per gallon equals 17.1 mg/L, so 111 mg/L divided by 17.1 gives 6.5.

What size water softener do I need in Lake Elsinore?

For 3 people using 75 gallons each per day, 6.5 gpg works out to about 1,460 grains a day. A 24,000-grain softener covers that with a regeneration about every 16 days.

Has the Lake Elsinore water system had EPA violations?

EPA records show no health-based violations for Elsinore Valley MWD since 2016.

Nearby cities

All 515 cities in California

Hardness data: TapWaterData US Water Hardness (utility report, September 22, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.