Experts fault commissioner’s wetland study
Whidbey News Times, October 12, 2011. Describes the costs and confusion arising from soils and wetlands work.

Map showing underlying layers of peat, which should have indicated to the city and developers that building homes here would be risky.

Ag-Related Water Issues and The Sacramento River Delta Loop
February 2010 newsletter of the Pennsylvania Association of Professional Soil Scientists, page 4

Saving wetlands: a broken promise
The Seattle Times, May 12, 2008

Shifting soil threatens homes' foundations

Ellensburg: Land application failure
Fact sheet for State Waste Discharge Permit, Twin Cities Foods, Inc., Ellensburg, WA, December 5, 2006

Pierce County: Wetland area not identified correctly prior to building a home

Snohomish County: Wetland drained for new housing development