How hard is the water in Madera Acres, CA?

Tap water hardness
62mg/L
3.6gpg
Moderately hardReports range 29–62

Reported by Madera Valley Water Company · September 2020

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

The water in Madera Acres carries roughly 62 mg/L of dissolved calcium and magnesium, or 3.6 grains per gallon. That is moderately hard water. The number comes from Madera Valley Water Company, dated September 2020. Reports for this system disagree, with values from 29 to 62 mg/L.

Madera Acres on the hardness scale, with nearby cities
060120180240300360+CA typical 121Mayfair: 10 mg/LMayfair 10Mendota: 17 mg/LMendota 17Clovis: 59 mg/LClovis 59Madera: 94 mg/LMadera 94Firebaugh: 121 mg/LFirebaugh 121Merced: 138 mg/LMerced 138Atwater: 138 mg/LAtwater 138Sunnyside: 167 mg/LSunnyside 167Sanger: 202 mg/LSanger 202Selma: 202 mg/LSelma 202Madera Acres 62mg/L as calcium carbonate060120180240300360+CA 121Mayfair: 10 mg/LMayfair 10Mendota: 17 mg/LMendota 17Clovis: 59 mg/LClovis 59Madera: 94 mg/LMadera 94Firebaugh: 121 mg/LFirebaugh 121Sunnyside: 167 mg/LSunnyside 16762 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Madera Acres sits 59 mg/L below the typical California figure of 121. Of the 10 nearest cities we track, 3 have softer water and 7 have harder. The range nearby runs from 10 mg/L in Mayfair to 202 in Sanger.

What 62 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 Madera Acres

3 people × 75 gallons a day × 3.6 gpg = 810 grains a day. A 24,000-grain unit regenerates about every 29 days.

Size it for your household

EPA record for Madera Acres's water system

Madera Valley Water Company · PWSID CA2010010

No health-based violations since 2016

Serves about 6,524 people from groundwater.

Health-based
0
Monitoring or reporting
0
Open now
0

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

Somewhat. It measures about 62 mg/L (3.6 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Madera Acres in grains per gallon?

About 3.6 gpg. One grain per gallon equals 17.1 mg/L, so 62 mg/L divided by 17.1 gives 3.6.

What size water softener do I need in Madera Acres?

For 3 people using 75 gallons each per day, 3.6 gpg works out to about 810 grains a day. A 24,000-grain softener covers that with a regeneration about every 29 days.

Has the Madera Acres water system had EPA violations?

EPA records show no health-based violations for Madera Valley Water Company since 2016.

Nearby cities

All 515 cities in California

Hardness data: TapWaterData US Water Hardness (utility report, September 3, 2020), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.