Regional Ecosystem Office (REO) - Northwest Forest Plan
Interagency Regional Monitoring: Watersheds

The Aquatic and Riparian Effectiveness Monitoring Plan (AREMP) characterizes the ecological condition of watersheds and aquatic ecosystems to answer the core question:
“Are the Northwest Forest Plan (NWFP) and the BLM Western Oregon Resource Management Plans maintaining and restoring the conditions of aquatic and riparian ecosystems on federal lands in the Forest Plan area?”
AREMP determines the status and trend of inchannel and upslope-riparian watershed condition for sixth-field watersheds (HUC12) within the NWFP area. Upslope and riparian condition are based on mapped data (e.g. road density, vegetation) for all watersheds with ≥5% federal ownership. Inchannel condition is based on stream data (e.g. substrate, wood, pools, temperature, and macroinvertebrates) collected yearly under a sampling program that visits watersheds with 25% or more federal ownership in repeating eight year rotations.
Contact Information
- Christine Hirsch - Program Manager
- Telephone: 541-750-7017
- Email: christine.hirsch@usda.gov
- Marcia Snyder – Data Analyst
- Telephone: 541-750-7270
- Email: marcia.snyder@usda.gov
- Mark Raggon - Field Coordinator
- Telephone: 541-750-7021
- Email: mark.raggon@usda.gov
Summer Employment
AREMP hires summer seasonal employees for our field monitoring crews - for details go to this Watershed Monitoring Summer Employment.
Reports
Time | Five-Year Monitoring Reports |
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25-Year | Dunham, Jason; Hirsch, Christine; Gordon, Sean; Flitcroft, Rebecca; Chelgren, Nathan; Snyder, Marcia; Hockman-Wert, David; Reeves, Gordon; Andersen, Heidi; Anderson, Scott; Battaglin, William; Black, Tom; Brown, Jason; Claeson, Shannon; Hay, Lauren; Heaston, Emily; Luce, Charles; Nelson, Nathan; Penn, Colin; Raggon, Mark. 2023. Northwest Forest Plan— the first 25 years (1994–2018): watershed condition status and trends. Gen. Tech. Rep. PNW-GTR-1010. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 163 p. https://doi.org/10.2737/PNW-GTR-1010.
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20-Year | Miller, Stephanie A.; Gordon, Sean N.; Eldred, Peter; Beloin, Ronald M.; Wilcox, Steve; Raggon, Mark; Andersen, Heidi; Muldoon, Ariel. 2017. Northwest Forest Plan—the first 20 years (1994–2013): watershed condition status and trends. Gen. Tech. Rep. PNW-GTR-932. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 74 p.
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15-Year | Lanigan, Steven H.; Gordon, Sean N.; Eldred, Peter; Isley, Mark; Wilcox, Steve; Moyer, Chris; Andersen, Heidi. 2012. Northwest Forest Plan—the first 15 years (1994–2008): watershed condition status and trend. Gen. Tech. Rep. PNW-GTR-856. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 155 p.
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10-Year | Gallo, Kirsten; Lanigan, Steven H.; Eldred, Peter; Gordon, Sean N.; Moyer, Chris. 2005. Northwest Forest Plan—the first 10 years (1994–2003): preliminary assessment of the condition of watersheds. Gen. Tech. Rep. PNW-GTR-647. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 133 p. |
Monitoring plan | Reeves, Gordon H.; Hohler, David B.; Larsen, David P.; Busch, David E.; Kratz, Kim; Reynolds, Keith; Stein, Karl F.; Atzet, Thomas; Hays, Polly; Tehan, Michael. 2004. Effectiveness monitoring for the aquatic and riparian component of the Northwest Forest Plan: conceptual framework and options. Gen. Tech. Rep. PNW-GTR-577. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 71 p. |
Other Monitoring Reports |
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AREMP 2022 Annual Report - Adobe .pdf File - 5.3 MB |
AREMP 2022 Aquatic Invasives Species Report - Adobe .pdf File - 1.40 MB |
AREMP 2022 Youth Report - Adobe .pdf File - 1.37 MB |
AREMP 2023 Field Protocol Manual - Adobe .pdf File - 1.6 MB |
For older reports see the Watersheds Archive.
Data
Data Reports |
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Northwest Forest Plan – The First 25 Years (1994-2018): Watershed Condition Status and Trends Below are multiple options for downloading the data associated with the 25- year report. All of the data is available as an ESRI geodatabase. Alternatively, the data is available by type and by chapter of the 25-year report. For the download by data type and by chapter outline options, the data is formatted as comma delimited text files, raster images as .TIF, and vector spatial data layers as shapefiles. Overall
By Data Type
By Chapter Outline
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Northwest Forest Plan-the first 20 years (1994-2008): watershed condition status and trend
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