How hard is my water?

Soft Water...............less than 1 grain per gallon
Slightly Hard..................1 to 3 grains per gallon
Moderately Hard............3 to 7 grains per gallon
Hard Water..................7 to 10 grains per gallon
Extremely Hard............over 10 grains per gallon

Average Hardness of local Municipal "City" Water Supplies:

Apple Valley  20 gpg
Bloomington   5 gpg
Brooklyn Park  21 gpg
Burnsville  22-25 gpg
Chanhassen   19 gpg
Chaska  23 gpg
Cologne  18 gpg
Cottage Grove  17 gpg
Crystal   5 gpg
Eagan  17 gpg
Eden Praire   6 gpg
Edina  17 gpg
Elk River   18 gpg
Elko New Market 25-26 gpg
Farmington  16 gpg
Forest Lake  17 gpg
Fridley  16 gpg
Hopkins  18 gpg
Inver Grove Heights  20 gpg
Jordan  16 gpg
Lakeville  17 gpg
Maple Grove  19 gpg
Minnetonka  19 gpg
Minneapolis  5 gpg
New Hope   5 gpg
New Prague   20 gpg
Northfield   24 gpg
Oakdale   15 gpg
Plymouth  24 gpg
Prior Lake   19 gpg
Rosemount   17 gpg
St Louis Park  18 gpg
St Paul   4 gpg
Savage  23 gpg
Shakopee  23 gpg
Shorewood  18 gpg
Stillwater  14 gpg
Waconia  18 gpg
Wayzata  20 gpg
White Bear  14 gpg
Woodbury  17 gpg
Wyoming  18 gpg  



Example of hard water residue left from one gallon of water at 20 grains of hardness.



Copyright 2012 Dakota Water Treatment of Minnesota, Inc.:Water Treatment Minnesota. All Rights Reserved.
17484 Goodland Path, Lakeville, MN
(952) 953-4643 | dakotawater@charter.net
Licensed, Bonded, Insured
MN lic. #424WC

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952.953.4643
Proudly Serving Minnesota and the Twin Cities Metro Area Since 1993   
Lakeville, Minnesota
(952) 953-4643

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Licensed, Bonded, Insured
MN lic. #WM062351
Minnesota Mellinnium water softener
Eliminate hard water problems with a 
Millennium Water Softening System 
Dakota Water Treatment 
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