1. Oregon Wetland Mapping Standard Draft Version 2.0 March 2009 Replaces Version 1 Endorsed by OGIC December 2006

2. Goals Consistent and compatible Easy to integrate Easy to disseminate Does not preclude different datasets, but shared datasets must meet minimum OWMS.

3. Why a Revision? FGDC: Draft Federal Wetlands Mapping Standard, September 2008 DSL: Administrative Rules, January 2009 OSU & TWC: Oregon Wetland Layer –Oregon Explorer Wetlands Portal –OWMS Version 1 inadequate

4. Current wetland datasets in Oregon NWI – wetlands NRCS -- hydric soils NHD -- waterbodies and springs OSU -- vegetation and conservation TWC -- conservation OWEB -- wetland restoration projects (OWRI) ODFW -- Conservation Opp Areas from WCS DSL – fill & removal, mitigation, LWIs, delineations USFS, BLM, USFWS, OPRD: wetlands, vegetation, condition

5. “Enhanced NWI” Local Wetland Inventories (LWIs) Miscellaneous wetland mapping –Agencies, NGOs –Theses, reports –Plot data Wetland delineations

6. LWIs (Corvallis) Blue = NWI, Red = LWI Available data: –Cowardin –HGM –Veg –Condition –Conservation Status

7. Wetland Mapping Cowardin HGM code Vegetation Conservation Status Data Sources

8. Informal Review of Draft Version 2 DSL ODOT OWEB INR-ORNHIC TWC Consultants

9. Basics Projection -- Oregon Lambert Source Imagery – CIR min. 1m (FGDC) –Interim: NAIP @ 0.5 m Horizontal Accuracy – min. 5 m (FGDC) Vertical Accuracy – not specified (FGDC) TMU – 0.2 ha, 0.5 ac (FGDC) –LWIs & WCPS (DSL) – 0.04 ha, 0.1 ac Metadata -- Oregon Standard

10. Minimum Attributes Sitename Data source & yr Creator & yr Method Data accuracy Cowardin Cowardin source HGM HGM source Poly source ID Field verification Data source type

11. Optional Attributes Hydro barriers Artificial drain Altered flows Wetland mgt Cover type Veg species Veg condition Veg source & yr LSW Goal 5 or 16 SAC Developed