Washington

Water Quality in the State of Washington

Washington state water supply mostly comes from surface water and underground water. The Columbia River is one of the state's biggest surface water sources and has many uses such as irrigation, aquatic habitat, and hydropower generation in Washington. More than 6.2 million Washington State residents (85 percent of the state's population), get their drinking water from public water systems. About 725,000 Washington residents get their drinking water from individual private wells and are regulated by local health jurisdictions.

 

Water Hardness by City

Washington water hardness is considered very low to moderately hard. The average water hardness is between 12 PPM to 218 PPM, which is considered to be hard water, by the USGS water hardness measures. Some examples of cities with very soft water are Seattle with 22 PPM and Everett with a hardness level of 12 PPM. Most hard water numbers are in eastern Washington, in cities like Spokane with 218 PPM and Walla Walla with 178 PPM.

 

For more information on the water hardness in specific cities, please see the table below.

 

City and Zip Codes Water Hardness Data

Seattle Metro Area

98101 |98102 | 98103 | 98104 | 98105 | 98106 | 98107 | 98108 | 98109 | 98112 | 98115 | 98116 | 98117 | 98118 | 98119 | 98121 | 98122 | 98125 | 98126 | 98133 | 98134 | 98136 | 98144 | 98146 |98148 | 98154 | 98155 | 98158 | 98164 | 98166 | 98168 | 98174 | 98177 | 98178 | 98188 | 98195 | 98198 | 98199

22 PPM (mg/L) or 1 gpg

Spokane

99201 |99202 | 99203 | 99204 | 99205 | 99206 | 99207 | 99208 | 99212 | 99216 | 99217 | 99218 | 99223 | 99224

218 PPM (mg/L) or 13 gpg

Tacoma Metro Area

98402 |98403 | 98404 | 98405 | 98406 | 98407 | 98408 | 98409 | 98416 | 98418 | 98421 | 98422 | 98433 | 98443 | 98444 | 98445 | 98446 | 98447 | 98465 | 98466

15 PPM (mg/L) or 1 gpg

Vancouver

98660 |98661 | 98662 | 98663 | 98664 | 98665 | 98682 | 98683 | 98684 | 98685 | 98686

96 PPM (mg/L) or 6 gpg

Bellevue

98004 |98005 | 98006 | 98007 | 98008

25 PPM (mg/L) or 1 gpg

Kent

98030 |98031 | 98032 | 98042

47 PPM (mg/L) or 3 gpg

Everett

98201 |98203 | 98204 | 98207 | 98208

12 PPM (mg/L) or 1 gpg

Renton

98055 |98056 | 98057 | 98058 | 98059

33 PPM (mg/L) or 2 gpg

Federal Way

98003 | 98023

24 PPM (mg/L) or 1 gpg

Tri-Cities

99301 | 99336 | 99337 | 99338 | 99352 | 99354

174 PPM (mg/L) or 10 gpg

Olympia

98501 |98502 | 98506 | 98512 | 98513 | 98516

83 PPM (mg/L) or 5 gpg

Bellingham

98225 | 98226 | 98229

24 PPM (mg/L) or 1 gpg

Mount Vernon

98273 | 98274

23 PPM (mg/L) or 1 gpg

Longview

98632

91 PPM (mg/L) or 5 gpg

Whidbey Island

98236 | 98277 | 98278

25 PPM (mg/L) or 1 gpg

Port Angeles

98362 | 98363

88 PPM (mg/L) or 5 gpg

Sequim

98382

108 PPM (mg/L) or 6 gpg

Yakima Valley

98901 |98902 | 98903 | 98908

87 PPM (mg/L) or 5 gpg

Walla Walla

99362

180 PPM (mg/L) or 10 gpg

Moses Lake

98837

73 PPM (mg/L) or 4 gpg

Ellensburg

98926

33 PPM (mg/L) or 2 gpg

Wenatchee

98801

147 PPM (mg/L) or 8 gpg

 

PPM = Parts Per Million

mg/L = Milligrams Per Liter

gpg = Grains Per Gallon

 

Agriculture, Farming and Water Hardness

Washington is a major agricultural state, with 39,000 farms on more than 15 million acres. Agricultural highlights include cattle ranching, dairy farms, wheat, apples, pears, cherries and other tree fruits, as well as varieties of grapes and vegetables. The cool valleys of Western Washington are idyllic for raising milk cows, berries, nursery products, flowers and poultry. Eastern Washington, known for its desert-like climate, has both irrigated and dry land farms. 

 

As a great deal of Washington has water rich in calcium (the primary source of water hardness), many farms and food processing plants experience issues related to scale buildup in their irrigators and equipment. In addition, contaminants polluting soil and waterways have increased greatly over the past few decades and there is a greater need for waste and chemical control. Many farmers are looking for eco-friendly solutions that can increase the quality and yield of their crops while saving water. Read more about how HydroFLOW can increase crop yield.

 

Solutions to your Water Quality Problems

Fixing your water quality issues in the state of Washington will depend on your specific water source. It is best to test your potable water supply in order to get a better understanding of your water quality. Testing is relatively cheap. The test results will allow you to understand if your potable water has issues that need to be addressed. Common solutions to water contamination problems may include a water filtration system, a reverse osmosis system or other whole home water treatment solutions.

 

A problem that some Washington residents will have to deal with is hard water. One old-fashioned, inefficient, expensive and unhealthy method to treat hard water is with a salt-based water softener. Most people don’t realize that if you’re using a water softener you are basically removing calcium and magnesium from your drinking water and adding salt to your diet. In addition, many states are banning the use of salt-based water softeners

 

Alternative water treatment solutions such as “water conditioners” have been gaining popularity in recent years because they are cheap to operate and the best eco-friendly solution for hard water. Hydropath technology, which powers the HydroFLOW water conditioners is by far the most efficient and cost-effective eco-friendly solution to deal with hard water problems. To learn more about how HydroFLOW solves the problems created by hard water, please check out our technology page. You might want to read this blog that explains the difference between water conditioners and water softeners: Water Conditioner vs. Water Softener Blog.

 

For more information, please contact HydroFLOW West