How hard is the water in Woodcrest, CA?

Tap water hardness
99mg/L
5.8gpg
Moderately hard

Reported by Riverside, City of · September 2025

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

The water in Woodcrest carries roughly 99 mg/L of dissolved calcium and magnesium, or 5.8 grains per gallon. That is moderately hard water. The number comes from Riverside, City of, dated September 2025.

Woodcrest on the hardness scale, with nearby cities
060120180240300360+CA typical 121Home Gardens: 99 mg/LHome Gardens 99Highgrove: 99 mg/LHighgrove 99Riverside: 112 mg/LRiverside 112Good Hope: 120 mg/LGood Hope 120Perris: 120 mg/LPerris 120Mead Valley: 122 mg/LMead Valley 122Moreno Valley: 122 mg/LMoreno Valley 122Jurupa Valley: 122 mg/LJurupa Valley 122Grand Terrace: 137 mg/LGrand Terrace 137Lake Mathews: 140 mg/LLake Mathews 140Woodcrest 99mg/L as calcium carbonate060120180240300360+CA 121Home Gardens: 99 mg/LHome Garde. 99Highgrove: 99 mg/LHighgrove 99Riverside: 112 mg/LRiverside 112Good Hope: 120 mg/LGood Hope 120Mead Valley: 122 mg/LMead Valley 122Lake Mathews: 140 mg/LLake Mathe. 14099 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 99 mg/L, Woodcrest is 22 mg/L below the typical California figure of 121. None of the 10 nearest cities we track has softer water. The range nearby runs from 99 mg/L in Home Gardens to 140 in Lake Mathews.

What 99 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 Woodcrest

3 people × 75 gallons a day × 5.8 gpg = 1,303 grains a day. A 24,000-grain unit regenerates about every 18 days.

Size it for your household

EPA record for Woodcrest's water system

Riverside, City of · PWSID CA3310031

No health-based violations since 2016

Serves about 302,776 people from surface water.

Health-based
0
Monitoring or reporting
0
Open now
0

TapWaterData ties Woodcrest to this system. EPA's service-area records do not name Woodcrest, 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 Woodcrest water hard?

Somewhat. It measures about 99 mg/L (5.8 grains per gallon), which the USGS classes as moderately hard.

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

About 5.8 gpg. One grain per gallon equals 17.1 mg/L, so 99 mg/L divided by 17.1 gives 5.8.

What size water softener do I need in Woodcrest?

For 3 people using 75 gallons each per day, 5.8 gpg works out to about 1,303 grains a day. A 24,000-grain softener covers that with a regeneration about every 18 days.

Has the Woodcrest water system had EPA violations?

EPA records show no health-based violations for Riverside, City of 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.