How hard is the water in Foothill Farms, CA?
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
Foothill Farms water measures 92 mg/L (5.4 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 65 to 107 mg/L.
At 92 mg/L, Foothill Farms is 29 mg/L below the typical California figure of 121. Of the 10 nearest cities we track, 7 have softer water and 3 have harder. The range nearby runs from 19 mg/L in Roseville to 98 in North Highlands.
What 92 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.
3 people × 75 gallons a day × 5.4 gpg = 1,206 grains a day. A 24,000-grain unit regenerates about every 19 days.
EPA record for Foothill Farms's water system
No health-based violations since 2016
Serves about 194,444 people from surface water.
- Health-based
- 0
- Monitoring or reporting
- 0
- Open now
- 0
TapWaterData ties Foothill Farms to this system. EPA's service-area records do not name Foothill Farms, 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 Foothill Farms water hard?
Somewhat. It measures about 92 mg/L (5.4 grains per gallon), which the USGS classes as moderately hard.
What is the water hardness in Foothill Farms in grains per gallon?
About 5.4 gpg. One grain per gallon equals 17.1 mg/L, so 92 mg/L divided by 17.1 gives 5.4.
What size water softener do I need in Foothill Farms?
For 3 people using 75 gallons each per day, 5.4 gpg works out to about 1,206 grains a day. A 24,000-grain softener covers that with a regeneration about every 19 days.
Has the Foothill Farms water system had EPA violations?
EPA records show no health-based violations for Sacramento Suburban Water District since 2016.
Nearby cities
- North Highlands98 mg/LModerately hard
- Antelope90 mg/LModerately hard
- Citrus Heights82 mg/LModerately hard
- Carmichael74 mg/LModerately hard
- Rio Linda93 mg/LModerately hard
- Fair Oaks53 mg/LSoft
- Roseville19 mg/LSoft
- Arden-Arcade98 mg/LModerately hard
- Orangevale45 mg/LSoft
- Gold River30 mg/LSoft
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.