How hard is the water in Carmichael, CA?

Tap water hardness
74mg/L
4.3gpg
Moderately hardReports range 47–107

Reported by Sacramento Suburban Water District · September 2025

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

Carmichael water measures 74 mg/L (4.3 gpg) of hardness, moderately hard by USGS standards. The number comes from Sacramento Suburban Water District, dated September 2025. Reports for this system disagree, with values from 47 to 107 mg/L.

Carmichael on the hardness scale, with nearby cities
060120180240300360+CA typical 121Rancho Cordova: 28 mg/LRancho Cordova 28Gold River: 30 mg/LGold River 30Rosemont: 38 mg/LRosemont 38Fair Oaks: 53 mg/LFair Oaks 53Citrus Heights: 82 mg/LCitrus Heights 82La Riviera: 85 mg/LLa Riviera 85Antelope: 90 mg/LAntelope 90Foothill Farms: 92 mg/LFoothill Farms 92North Highlands: 98 mg/LNorth Highlands 98Arden-Arcade: 98 mg/LArden-Arcade 98Carmichael 74mg/L as calcium carbonate060120180240300360+CA 121Gold River: 30 mg/LGold River 30Fair Oaks: 53 mg/LFair Oaks 53La Riviera: 85 mg/LLa Riviera 85Foothill Farms: 92 mg/LFoothill F. 92North Highlands: 98 mg/LNorth High. 98Arden-Arcade: 98 mg/LArden-Arca. 9874 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Carmichael sits 47 mg/L below the typical California figure of 121. Of the 10 nearest cities we track, 4 have softer water and 6 have harder. The range nearby runs from 28 mg/L in Rancho Cordova to 98 in North Highlands.

What 74 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 Carmichael

3 people × 75 gallons a day × 4.3 gpg = 974 grains a day. A 24,000-grain unit regenerates about every 24 days.

Size it for your household

EPA record for Carmichael's water system

Carmichael Water District · PWSID CA3410004

No health-based violations since 2016

Serves about 41,193 people from surface water.

Health-based
0
Monitoring or reporting
2
Open now
0

EPA lists Carmichael Water District as the system serving Carmichael. The hardness figure above comes from a different system's report, which TapWaterData uses for Carmichael.

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 Carmichael water hard?

Somewhat. It measures about 74 mg/L (4.3 grains per gallon), which the USGS classes as moderately hard.

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

About 4.3 gpg. One grain per gallon equals 17.1 mg/L, so 74 mg/L divided by 17.1 gives 4.3.

What size water softener do I need in Carmichael?

For 3 people using 75 gallons each per day, 4.3 gpg works out to about 974 grains a day. A 24,000-grain softener covers that with a regeneration about every 24 days.

Has the Carmichael water system had EPA violations?

EPA records show no health-based violations for Carmichael Water District since 2016. There were also 2 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 515 cities in California

Hardness data: TapWaterData US Water Hardness (utility report, September 16, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.