Water Quality FAQs

 1. I am installing a water softener. What is the “hardness” of PUD water? 

Here are some sample results for hardness. Hardness is not a frequently required water test and therefore the results below may be several years old. In some sources, hardness can vary annually by 10-20% with the hardest water often in the winter and the softer water in the spring and summer as the water levels recharge. In the chart below, hardness  is shown per system and area served (several systems have multiple sources). All of our sources are groundwater and the amount of hardness can range significantly depending on which source is serving your service location.

System (Area) Hardness
(in mg/l Calcium Carbonate)
Hardness in
(grains/gallon)
Quimper (Airport) 200 12
Quimper (Kala Point) 185 11
Quimper (Port Hadlock) 176 10
Quimper (Chimacum) 136 8
Bywater Bay (Shine) 100 6
Bywater Bay (Alpine Court ) 120 7
Gardiner (Gardiner) 110 – 120 6 – 7
Snow Creek (Uncas) 107 6
Quilcene (Quilcene) 90-100 6
Lazy C (Brinnon) 85 5
Triton Cove (Brinnon) 16 – 24 1 -1.5
LUD#3 (Ocean Grove) 200 12
For more information on how to access public water system data, see #2 below.