Water Hardness By City Mn
While most minnesota cities have hard water there are a few cities with moderately soft water.
Water hardness by city mn. Water in this area is supplied from surface and groundwater creeks containing calcium magnesium and iron salts producing a hard water rating of up to 20 gpg. 1 click on a state to zoom in. 4 click the arrow that is located at the top left corner of the map to zoom out. You can search your place by city name or zip code.
How to use the interactive water hardness map. Map edited by usepa 2005. Average water hardness in the united states is 5gpg or grains per gallon. For reference water is considered hard between 120 180 ppm.
In the twin cities most city water and private well water is 4 5x harder with some levels reaching up to 35gpg. Water hardness scale chart. Mean hardness as calcium carbonate at nasqan water monitoring sites during the 1975 water year. The water hardness level in the table below is counted by parts per million ppm the water hardness levels are classified as below.
Contingent upon where a water test is performed this data will be accounted for in mg l milligrams per liter or gpg grains per gallon. Manmade contaminants and mineral heavy water from the mississippi river the area s main water source produce a 15 gpg level for the twin cities. Grains per gallon is the business standard approach for talking about water hardness. This is the measure of the amount of calcium and magnesium dissolved in your water.
2 click on a city to open a pop up box detailing its water hardness. Hard water is defined by the level of calcium and magnesium ions that are leached from aquifers that contain rock such as calcite gypsum and dolomite. Modified from briggs j c and ficke j f 1977. 3 click on an area without a city to open a pop up box detailing the average state water hardness.
Colors represent streamflow from the hydrologic unit area. Here you will find the data of water hardness level of 460 cities in 50 states by zip code across the united states of america. 0 17 1 ppm. While individual water softening is not necessary many individuals choose to have private water softeners.
Woodbury s water hardness is approximately 13 5 grains. Water hardness map of the united states water hardness table of classifications and links to more information about water softening and effects.