Resources & Documents

Studies

• USGS Seepage Investigations of the Clackamas River, Oregon, 2011 https://pubs.usgs.gov/sir/2011/5191/

• 2008 USGS released the Final Report on a second joint pesticide study between USGS and the water providers titled “Pesticide Occurrence and Distribution in the Lower Clackamas River Basin, Oregon, 2000-2005” https://pubs.usgs.gov/sir/2008/5027/

• USGS Pesticides in the Lower Clackamas River Basin, Oregon, 2000-01 https://pubs.usgs.gov/wri/wri034145/

• USGS Algal Study https://pubs.usgs.gov/wri/WRI02-4189/

• USGS National Water-Quality Assessment Program, Source Water-Quality Assessment Organic Compounds in Clackamas River Water Used for Public Supply near Portland, Oregon, 2003-05

Plans

• CRWP Drinking Water Protection Plan
• Lower Clackamas River Basin Macroinvertebrate Monitoring Plan
• Regional Water Providers Consortium – Regional Water Supply Plan
• Final_CRWP_Source Water Assessment Plan Sept 2022
  

Reports

• CRWP Annual Report FY 2022-23
• Clackamas Watershed Resilience Phase 1 Report
• Clackamas River Basin Pollutant Load Modeling Tool Report (2014)
• Organic Farm Certification Feasibility Study Final Report (2013)
• The 2015 Clackamas River Watershed Survey: Landowner perspectives on watershed stewardship programs
• The 2016 Clackamas River Drinking Water Customer Survey: Customer Perspectives on Source Water Protection
• 2013 319 Final Grant Report

Macro Reports

• 2022 Lower Clackamas Macroinvertebrate Assessment
• 2018 Lower Clackamas River Macroinvertebrate Assessment
• MACROINVERTEBRATE COMMUNITY CONDITIONS of the LOWER CLACKAMAS RIVER BASIN 1997-2016
• Lower Clackamas River Macroinvertebrate Assessment (December 2013) 
• Lower Clackamas River Macroinvertebrate Assessment (2014)
• 2019 Lower Clackamas River Macroinvertebrate Assessment
• 2013-2015 Lower Clackamas River Macroinvertebrate Assessment

Drinking Water Risk Analysis Final Memos

Septic Systems Risk Analysis Results 2021
Agriculture Risk Analysis Results 2021
Forestry Risk Analysis Results 2021
Urban Development Risk Analysis Results 2021
Point Source Pollutant Risk Analysis Results 2021
Hazardous Materials Risk Analysis Results 2021
Vulnerable Soils Risk Analysis Results 2021

Hazardous Material Spill Information

• Spill Response Contact Sheet 
• Facilities_Storing_Hazardous_Materials short 
• Contaminant Travel Time Tables 
• Final GRP Lower Clackamas River 
• GRP Tool How To Doc

NEW – CRWP Pollutant Load Modeling Tool (PLMT)

The purpose of the Clackamas River Watershed Pollutant Modeling Tool is to provide an interactive framework for estimating the relative impacts of land use and best management practices on drinking water source quality in various parts of the watershed. This tool can be used to assess baseline conditions and consider scenarios for land management and pollution reduction in accordance with the Clackamas River Watershed Drinking Water Protection and Source Water Assessment Plans.  To access the tool go to https://crwp-pollutant-load-model.azurewebsites.net/

River Watershed Agricultural Water Rights Project

The CRWP worked with a Graduate student at Portland State to understand how many agricultural water rights are in the Clackamas River watershed, where they are and how large they may be, and if there are opportunities to work with these landowners under Oregon water law to put water back instream to increase river flows.  Check out the project Storymap here.

Assessing Wildfire Risk to Municipal Drinking Water

CRWP worked with the USFS Pacific NW Research Station to Assess Wildfire Risk to Municipal Drinking Water Sources.  Click here to go to see a summary of the project.  To see the results of this modeling work – see the Strategic Planning for Water, Infrastructure, and Aquatic Biota After Wildfire – Riverside Fire, Clackamas, Oregon storymap.