Technical Data

Many stakeholders in the Clackamas River Watershed monitor water quality to meet regulatory requirements and to better understand the health of the watershed. Below are links to reports, studies, and technical data for the basin.

New – Clackamas 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.

Clackamas River Basin Water Temperature Study

Year one data: Clackamas Water temp Study year 1 data logs master spreadsheet
Project website https://sites.google.com/pdx.edu/clackamas-stream-temp-project/home

CRWP Post Riverside Fire WQ monitoring (2020-22)
CRWP Post Fire Testing 2020-2022

Assess 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.

Basic Water Quality Characteristics

Clackamas River Basin Council
WATER QUALITY MONITORING REPORT – 2011
WATER QUALITY MONITORING REPORT – 2013
WATER QUALITY MONITORING REPORT – 2014

Oregon Department of Environmental Quality
AMBIENT WATER QUALITY MONITORING SYSTEM DATABASE

US Environmental Protection Agency
HISTORICAL DATA ON STORET DATABASE

US Geological Survey
USGS Clackamas River Water Quality Monitoring Stations

Eagle Creek Water Quality
Eagle Creek water quality Bugni 2020 study final
Eagle Cree WQ Data Charts of results

Microplastic Study (2021)

Microplastic Study Presentation
Microplastic Study Report
Environmental Pollution – Microplastics in freshwater: A global review of factors affecting spatial and temporal variations

Pesticides Studies and Reports

OR Department of Agriculture
GENERAL INFORMATION ON PESTICIDES AND WATER QUALITY

US Geological Survey
2005 REPORT ON PESTICIDES IN THE LOWER CLACKAMAS BASIN

Pesticide Stewardship Partnership (PSP)
PSP MONITORING SUMMARY – FEB 2015
Pesticide Stewardship Partnership 2015-17 Biennial Summary
Pesticide Stewardship Partners Biennium Report 2017-19
PSP Biennium Report 2019-21
PSP Biennium Fact Sheet 2019-21
Pesticide Stewardship Partners Data Viewer https://rstudioconnect.deq.state.or.us/PSP-Data-Viewer/

Macroinvertebrates Studies and Reports

Clackamas River Water Providers
Lower Clackamas River Basin Macroinvertebrate Monitoring Plan
2019 Lower Clackamas River 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)
2013-2015 Lower Clackamas River Macroinvertebrate Assessment

Clackamas Soil and Water Conservation District
2018 CSWCD Stream Benthic Macros Assessment
2016-CSWCD Stream Benthic Macro Assessment
2012 CSWCD Stream Benthic Macro Assessment

Clackamas River Basin Council
2013 CRBC macro data
2011 CRBC Macro data

Summary Reports

NRCS – National Water Quality Initiative Clackamas Source Water Assessment Plan (September 2022)
Final_CRWP_Source Water Assessment Plan Sept 2022
Source Water Assessment Plan Summary Presentation. NWQI- CTWG presentation Sept 2022

OR Department of Environmental Quality
CLACKAMAS SUBBASIN WATER QUALITY OVERVIEW

OR Department of Environmental Quality
OREGON’S 2018/20 INTEGRATED REPORT

OR Department of Environmental Quality
WILLAMETTE BASIN GROUNDWATER QUALITY REPORT

US Geological Survey
STUDY OF ORGANIC COMPOUNDS IN CLACKAMAS RIVER WATER

DEQ Source Water Assessment
Clackamas River Public Water Systems