The Professional Soil Scientists Association of California meets annually. The meetings typically are comprised of an afternoon/evening business meeting followed by a one- or two-day technical tour.

PSSAC Table of Annual Meeting Activity & Other Soil Science Events



Year Location  Meeting focus Link to Meeting Information

Colusa, Glenn, and Yolo counties

April 25-27, 2024

A field trip and meeting near the proposed Sites Reservoir, and at a large wetlands mitigation project in eastern Yolo County.
Link to the 2024 Annual Meeting Page for complete information. 
 2023 Soil Health Webinar
October 27, 2023
A 2-hour-long webinar on Soil Health and the California Healthy Soils Initiative. Link to the 2023 Fall Soil Health Webinar Page for complete information. 
2023 Santa Cruz Island
June 12-16, 2023
A rare opportunity to take an in-depth look at Santa Cruz Island, a remnant of prehistoric coastal southern California. Link to the 2023 Annual Meeting Page for complete information. 
2022 Virtual
October 21, 2022
The meeting included three presentations from our special guest speakers, announcement of scholarship awards, and an Annual Business Meeting. Link to 2022 Virtual Annual Meeting Page to see the complete agenda and a link to the recording of the meeting on PSSAC’s YouTube channel.
2021 Virtual Meeting
April 23, 2021
Meeting included three presentations from guest speakers, announcement of scholarship awards, and an Annual Business Meeting. Link to 2021 Virtual Annual Meeting Page
 2020  Butte County
April 2-3, 2020
Meeting Cancelled due to Covid-19 Pandemic. Pleistocene terrace geomorphology, Hydric Soils, Section 404(f) guidance, WOTUS, and a visit to the Coyote Creek Conservation Area.  Link to 2020 Annual Meeting Page
2019 Napa River Watershed
May 30-31, 2019
Topics included Mare Island, Tidal Marsh, Slope Instability, Vineyard Soils and Management, NRCS Programs, and more. Link to 2019 Annual Meeting Page
 2018  Butte County
March 1-3, 2018
 Meeting included NRCS Cooperators Roundtable, field tour to Cherokee and other regional soils of interest, and collegiate soil/landform judging event.  Link to 2018 Annual Meeting Page
2017  Sacramento Delta Region
April 20-22, 2017
 Topics included geomorphic formations, geological framework, and soil and land use information for the Sacramento Delta Region.  Link to 2017 Annual Meeting Page
 2016  South San Joaquin Valley
April 7-9, 2016
 Hydrology, Geomorphology, Soils, and Stratigraphy and Archaeology, focusing on Buena Vista and Tulare Lake Basins  Link to 2016 Meeting Page
 2015  Central Sierra Nevada
June 25-28, 2015
Soil, Geomorphology, and Ecology. Importance of soils on land management decisions.  Link to 2015 Meeting Page
2014 Greenville, CA
(June 20-22, 2014)
Plumas County Serpentine Soils, featuring the work of Dr. Earl Alexander, and fun local management topics. Link to 2014 Meeting Page
2013 Mendocino Woodlands State Park
(June 27-30, 2013)
Planned jointly with the California Forest Soils Council, this meeting included a 50th anniversary celebration at Caspar Creek Watershed, visit a lumber mill reclamation site, information on Erosion Hazard Index, Ecological Staircase and more. Link to 2013 Meeting Page
2012 Davis, California
(June 26, 2012)
Annual Business Meeting was held during the June 25-28, 2012 Western Regional Cooperative Soil Survey Conference. NRCS Webpage for this conference is no longer available.
2011 Davis, California Yolo County Soils, Wetlands, Online Soil Tools and Apps, and More. Organized by David Kelley, Toby O’Geen and Randy Dahlgren. Link to 2011 Meeting Page
2010 Davenport, Calif.
(June 17-19, 2010)
Swanton Pacific Ranch. Organized by Ron Taskey, Roberta Smith, Brian Dieterrick (Swanton Pacific Ranch manager), Tom Rice, and Mary Reed. 2010 Photo Album
2009 Yosemite National Park
(Sept. 17-19, 2009)
“Soil-Geology-Vegetation Relationships of Yosemite National Park.” A Joint Meeting of PSSAC and CFSC. 2009 Photo Album
2008 San Luis Obispo and Paso Robles Areas
(March 27-29, 2008)
Soil and Wine Quality Relationships, Soil and Olive Oil production, and mercury mine remediation efforts in the Tablas Creek watershed were the topics for the 2008 Annual Meeting. 2008 Photo Album
2007 Catalina Island
(April 19-22, 2007)
The general theme of the meeting was to expose the participants to the unique soils, landforms, geology, agriculture, land use practices, archaeology, and history of Catalina Island. Cooperating agencies are the USDA/Natural Resources Conservation Service (NRCS), Catalina Island Conservancy, and the University of Southern California Wrigley Marine Science Center. 2007 Photo Album
2006 Philadelphia, PA
(July 19-15, 2006)
18th World Congress of Soil Science Meeting Web Site link is no longer available.
2005 Harris Ranch, Fresno and Kings Counties Human modified soils and issues related to agriculture, land use, and water in the San Joaquin Valley in collaboration with NRCS and the Department of Water Resources. 2005 Photo Album
2004 Sacramento, Shasta, Modoc & Lassen Counties Agriculture, land use, and research issues in Northeastern California. Relationships between soils, climate and land use practices in collaboration with NRCS and University of California Extension Service. 2004 Photo Album
2003 Doubletree Hotel, Sacramento Valley and adjacent foothills Soil and Archaeology: Pedological and Cultural History Revealed. Soils, geomorphic surfaces and archaeological features in collaboration with the Society for California Archaeology.  No Album Available
2002 McClellan Park, Sacramento Remediation of soils contaminated with hazardous materials, and nutrient management on soils used for treatment of agricultural wastes 2002 Photo Album
2001 Salinas, Monterey County Geology, Geomorphology, Native Vegetation, Water Resources, Nitrate Management, Commercial Composting, Intensive Agriculture and Urban and Agricultural Land Use Issues 2001 Photo Album
2000 Fresno County San Joaquin State Soil, Foriestiere Gardens, Cal Poly SLO student projects. 2000 Photo Album