United States Water Hardness Map
Identify your State and match the color up with the chart below. Always use the high figure. If you happen to be in a extremely hard water area of 14 gpg or higher use the figure 20 gpg. to size your system. Our systems will remove up to 150 GPG of hardness at a time so your water will be Soft regardless. The sizing of the Water Softener is for the purpose of not regenerating as often saving you money on salt / potassium and has nothing to do with the performance of the system.
Still need help?
To find your water department's water quality reports online, click
Select your city and state and follow the link to your water department's website. There are thousands of different water departments across the United States and each website is different. Not all of the websites disclose water hardness on their water quality reports. But, if you call your water department directly they will be able to tell you exactly what your water hardness is. Please note: Quality Water Treatment cannot guarantee the accuracy of the information provided by your water department's website.