Washington Water Trust

Working to restore our state's rivers and streams.

Jan. 16, 2013

Washington Water Trust Launches Dungeness Water Exchange

Washington Water Trust launched the Dungeness Water Exchange on January 2, 2013.  The Exchange has a dual mission of restoring flows to the mainstem Dungeness River and providing mitigation for new groundwater uses. Washington Water Trust has been working closely with basin partners since September of 2008 to assess, design and implement the Dungeness Water Exchange. Mitigation for new water use is required under the new Dungeness Water Management Rule signed by Ecology Director Ted Sturdevant on November 16, 2012.  The Exchange will have a local advisory board with invited representation from Clallam County, Department of Ecology, the Dungeness Water Users Association, the Jamestown S’Klallam Tribe, City of Sequim, Clallam PUD No.1, Clallam Conservation District and Washington Department of Fish and Wildlife.

Initially, the Exchange will offer mitigation certificates for those with pending 2013 building permit applications within the effective area of the rule, and will work with Clallam County to set up a program that serves all other applicants in the first quarter of 2013. Mitigation applicants may choose between three mitigation packages, described below.


Mitigation Package Descriptions

Package Description

Average Amount of Indoor Use (Gallons/Day)

Average Amount of Outdoor Use (Gallons/Day)

Amount of Irrigated Lawn Area
(Square Feet)

Amount of Irrigated Lawn Area (Acres)

Indoor Only Package (minimal incidental outdoor use only) $1,000





Indoor with Basic Outdoor Package $2,000



2,500 sq. ft. (approx. 50 x 50 ft.)

.06 acres

Indoor with Extended  Outdoor Package $3,000



5,625 sq. ft. (approx. 75 x 75 ft.)

.13 acres


A grant from Department of Ecology to Clallam County is available to reimburse the cost of domestic mitigation ($1,000) for applicants. To obtain mitigation, applicants may work either with Clallam County and the Dungeness Water Exchange. Applicants will provide basic information about their property and proposed new water use and choose the mitigation package that best suits their needs, or submit their own mitigation plan directly to the Department of Ecology. More detailed information will be available soon on Washington Water Trust’s Dungeness Water Exchange website.

The Dungeness Water Exchange is negotiating an agreement to purchase a portion of senior water rights held by the Dungeness Water Users Association. The Exchange has also developed a water management agreement that allows delivery of the purchased water to supply aquifer recharge projects in the Dungeness. In addition to providing mitigation water, these recharge projects will enhance  stream flows in small streams and the Dungeness River. The Department of Ecology has provided start–up funding  for these projects, which will provide mitigation for between 950-2,350 wells, for  five to 50 years, depending on the amount and type of mitigation packages sold and the depth and location of new wells.

If you would like more information about the Dungeness Water Exchange, contact Amanda Cronin, Washington Water Trust, 206.675.1585 x100, amanda@washingtonwatertrust.org, or Susan Adams, 206.657.1585 x101, susan@washingtonwatertrust.org