Text Size:   A+ A- A   •   Text Only
Site Image

Learn More About Regional Supplements to Delineation Manual
Training Information

Kathy Verble DSL's soils scientist 
Kathy Verble, DSL's soils scientist, leads students through a matrix of hydric soil field indicators.
Because the technical manual used by DSL, the Army Corps of Engineers and the Environmental Protection Agency for identifying wetlands dates back to 1987, the Corps initiated an ambitious, multi-year program in 2002 to develop regional supplements to the wetlands delineation manual.
Regional interagency working groups helped develop each supplement and conducted field testing. Each supplement also was reviewed by a new National Advisory Team for Wetland Delineation, and was subject to public and independent peer review.
Two regional supplements are now being used along with the 1987 manual for wetland determinations and delineations in Oregon and other western states:  (1) Arid West and (2) Western Mountains, Valleys and Coast. DSL wetland specialists Janet Morlan and Kathy Verble participated in the development and field testing of both supplements, and Kathy chaired the peer-review team for the Western Mountains, Valleys and Coast document.
Between May 2006 and September 2008, Janet and Kathy teamed up with staff from the Portland District Corps of Engineers, the Environmental Protection Agency regional office in Portland, the Natural Resources Conservation Service and the U.S. Fish & Wildlife Service regional office to conduct trainings. More than 400 people attended one of six trainings at professional meetings or free sessions sponsored by DSL and the Corps.  In addition, Janet has presented information on the regional supplements to more than 150 people at professional meetings out of state.
DSL is no longer sponsoring trainings, but training is available from private firms that provide training in a wide range of wetland topics.
Click here for regional supplements to the Delineation Manual; and
here for a PowerPoint presentation used at the most recent training.