How hard is the water in Antelope, CA?

Tap water hardness
90mg/L
5.3gpg
Moderately hardReports range 65–90

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

Tap water in Antelope has about 90 mg/L of hardness, which is 5.3 grains per gallon. On the USGS scale that counts as moderately hard. The number comes from Sacramento Suburban Water District, dated September 2025. Reports for this system disagree, with values from 65 to 90 mg/L.

Antelope on the hardness scale, with nearby cities
060120180240300360+CA typical 121Roseville: 19 mg/LRoseville 19Gold River: 30 mg/LGold River 30Orangevale: 45 mg/LOrangevale 45Fair Oaks: 53 mg/LFair Oaks 53Carmichael: 74 mg/LCarmichael 74Citrus Heights: 82 mg/LCitrus Heights 82Foothill Farms: 92 mg/LFoothill Farms 92Rio Linda: 93 mg/LRio Linda 93North Highlands: 98 mg/LNorth Highlands 98Arden-Arcade: 98 mg/LArden-Arcade 98Antelope 90mg/L as calcium carbonate060120180240300360+CA 121Roseville: 19 mg/LRoseville 19Carmichael: 74 mg/LCarmichael 74Citrus Heights: 82 mg/LCitrus Hei. 82Foothill Farms: 92 mg/LFoothill F. 92Rio Linda: 93 mg/LRio Linda 93North Highlands: 98 mg/LNorth High. 9890 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Antelope sits 31 mg/L below the typical California figure of 121. Of the 10 nearest cities we track, 6 have softer water and 4 have harder. The range nearby runs from 19 mg/L in Roseville to 98 in North Highlands.

What 90 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 Antelope

3 people × 75 gallons a day × 5.3 gpg = 1,184 grains a day. A 24,000-grain unit regenerates about every 20 days.

Size it for your household

EPA record for Antelope's water system

Sacramento Suburban Water District · PWSID CA3410001

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

Somewhat. It measures about 90 mg/L (5.3 grains per gallon), which the USGS classes as moderately hard.

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

About 5.3 gpg. One grain per gallon equals 17.1 mg/L, so 90 mg/L divided by 17.1 gives 5.3.

What size water softener do I need in Antelope?

For 3 people using 75 gallons each per day, 5.3 gpg works out to about 1,184 grains a day. A 24,000-grain softener covers that with a regeneration about every 20 days.

Has the Antelope water system had EPA violations?

EPA records show no health-based violations for Sacramento Suburban Water District since 2016.

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.