Hard water in Magnolia, TX
Reported by Northcrest Ranch Water System · June 2022
- TX typical
- 112 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Utility report
Tap water in Magnolia has about 144 mg/L of hardness, which is 8.4 grains per gallon. On the USGS scale that counts as hard. The number comes from Northcrest Ranch Water System, dated June 2022. Reports for this system disagree, with values from 144 to 173 mg/L.
Magnolia sits 32 mg/L above the typical Texas figure of 112. None of the 10 nearest cities we track has harder water. The range nearby runs from 43 mg/L in Prairie View to 86 in Spring.
What 144 mg/L means at home
Expect white crust on faucets and showerheads, plus spots on dishes that come out of the dishwasher.
Kettles collect scale quickly. Water heaters build up sediment at the bottom of the tank, which makes them work harder over time.
Soap and detergent need a little more to lather, and soap scum shows up in the tub.
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
At 144 mg/L most of the trouble is scale, and only a few things deal with it.
Ion-exchange water softener
The standard whole-house fix. It swaps calcium and magnesium for sodium or potassium and needs salt plus a drain. Size it with the calculator below.
Salt-free conditioner
No salt and no drain line. It changes how minerals form scale instead of removing them, so water still tests hard.
Reverse osmosis or carbon filter
Under-sink reverse osmosis removes minerals from drinking water only. Plain carbon filters improve taste but do not soften.
3 people × 75 gallons a day × 8.4 gpg = 1,894 grains a day. A 24,000-grain unit regenerates about every 12 days.
EPA record for Magnolia's water system
No health-based violations since 2016
Serves about 1,404 people from groundwater.
- Health-based
- 0
- Monitoring or reporting
- 5
- Open now
- 0
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 Magnolia water hard?
Yes. It measures about 144 mg/L (8.4 grains per gallon), which the USGS classes as hard.
What is the water hardness in Magnolia in grains per gallon?
About 8.4 gpg. One grain per gallon equals 17.1 mg/L, so 144 mg/L divided by 17.1 gives 8.4.
What size water softener do I need in Magnolia?
For 3 people using 75 gallons each per day, 8.4 gpg works out to about 1,894 grains a day. A 24,000-grain softener covers that with a regeneration about every 12 days.
Has the Magnolia water system had EPA violations?
EPA records show no health-based violations for Northcrest Ranch Water System since 2016. There were also 5 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Tomball82 mg/LModerately hard
- The Woodlands44 mg/LSoft
- Waller74 mg/LModerately hard
- Prairie View43 mg/LSoft
- Conroe82 mg/LModerately hard
- Willis57 mg/LSoft
- Hempstead49 mg/LSoft
- Spring86 mg/LModerately hard
- Navasota53 mg/LSoft
- Humble52 mg/LSoft
Hardness data: TapWaterData US Water Hardness (utility report, June 2, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.