Average Well Water Hardness

Lime scale buildup inside a water pipe.

Average well water hardness.

Water hardness map of the united states water hardness table of classifications and links to more information about water softening and effects. The average water hardness in each state is based on the specified cities in that state. A grain of water hardness is comparable to 1 7000th of a pound. 121 to 180 mg l as hard.

The data in this map comes to provide a general outline of water hardness throughout the usa. Grains per gallon is the business standard approach for talking about water hardness. This explains why almost every region in arizona has very hard water. Let s have a look at the following situation.

Water between 3 7 gpg is moderately hard causing spotty dishes and dry skin. Formula to measure no of grains to be removed. Now at some point you check the quality of water which you should do every six months for well water. Depending on the location and depth of the well the water hardness in these aquifers can range from 200 10 000 ppm.

60 100 ppm is the currently acceptable hardness level for drinking water in us and canada. Hard water is packed with minerals at 7 11 gpg and you likely deal with crusty faucets and pipes and possibly reddish rings on your porcelain from excess iron. Beware of companies that tell you that each ppm of iron is equal to 4 5 grains per gallon of hardness. We do not guarantee the water hardness figures are 100 accurate.

Water hardness figures are based on reports from government and private sources. Your well supplies your water and because it s hard you use a softener. Typically seawater s hardness is in the area of 6 630 ppm 6 63 grams per litre. 0 to 60 mg l milligrams per liter as calcium carbonate is classified as soft.

What is permissible value for hardness in well water for drinking purpose. If hardness is in mg l or ppm convert it into gpg by dividing it with 17 1. General guidelines for classification of waters are. Medium hard 3 7 gpg total grains x 17 1 equals ppm hard 7 10 5 gpg total grains x 17 1 equals ppm extremely hard water 10 5 gpg total grains x 17 1 equals ppm warning.

If your hard water test strip indicates that your water is between 0 3 gpg your water doesn t require softening. And more than 180 mg l as very hard. This is actually the legitimate reason why you might want to adjust the water hardness. In contrast freshwater has hardness in the range of 15 to 375 ppm.

What is the value of hardness. Jumping mg l by 17 1 will change it to gpg.