Faculty Page for Timothy C. Horner, Department of Geology, CSU Sacramento; Specialties in hydrogeology, sedimentology, field methods

Tim Horner

Professor Emeritus

Geology Department

California State University Sacramento

Tim Horner retired on June 29th, 2018. He and his wife Leslie live in Mount Shasta, and they would love to hear from you. Please look for Tim on facebook in Mt. Shasta.

For Geology questions please contact:

Geology Department, 2003 Placer Hall
6000 J St.
Sacramento, CA 95819-6043

916-278-6337

Classes that I taught

Geol 8 (Earth Science)

Geol 111 (Field methods)

Geol 8L (Earth Science Lab)

Geology 210 (Field Characterization of Aquifer Systems) is an internet-enhanced course. Click here for course information.

Geol 103 (Sedimentology and Stratigraphy) is an internet-enhanced course. Click here for course information.

Geology 200 (Graduate Research methods)

Geol 10 (Physical Geology) is an internet-enhanced course. Click here for course information.

Geology 230 (Seminar) - Groundwater/ surface water interaction is an internet-enhanced course. Click here for course information.

Geol 127 (Hydrogeology) Geol 500 (M.S. thesis)

Water quality measurements

Recent grants and projects

2011/2015: California Department of Water Resources grant for $148,000 for spawning gravel evaluation in the Low Flow Channel (LFC) of the Feather River. This four year project is supporting graduate and undergraduate research assistants who are evaluating gravel restoration sites in the Feather River Low Flow Channel.
2012/2013: Sacramento Water Forum and U.S. Bureau of Reclamation grant for $55,700 to conduct habitat assessment and physical monitoring at gravel restoration sites on the American River. This project will support graduate and undergraduate student research at four restoration sites, including a new augmentation site near Sailor Bar.
2011/2012: Sacramento Water Forum and U.S. Bureau of Reclamation grant for $55,700 to monitor physical conditions at three gravel restoration sites on the American River. This project supported graduate and undergraduate student research on American River restoration sites.
2010/2011: Bureau of Reclamation grant for $54,546 to evaluate a third gravel addition site on the American River, and continue monitoring at previous sites. This project provided funding for graduate and undergraduate field assistants.
2009/2010: Bureau of Reclamation grant for $45,543 to evaluate salmon spawning habitat at two gravel addition sites on the American River.
2008/2009: Bureau of Reclamation grant for $24,519 to monitor and evaluate a gravel addition project near Sailor Bar (lower American River). Graduate and undergraduate students assisted with site evaluation before and after the gravel was emplaced.
2007/2008: Water Forum grant for $26,298 for Lower Sunrise side channel restoration. CSUS faculty and students teamed with the City of Sacramento, private consultants and the California Dept. of Fish and Game to monitor and evaluate a spawning gravel restoration project on the American River.
2006/2007: Bureau of Reclamation Grant for $37,804 to complete a gravel budget for the Lower American River. This project provided funding for a graduate student in the CSUS Geology Department to evaluate gravel loss and gravel mobility on the lower American River.
2005/2006: Water Forum Grant for $15,799 to support substrate evaluation at the Lower American River Sunrise side channel project. This project supported graduate and undergraduate students for summer field work at a proposed steelhead restoration site.
2005/2006: Bureau of Reclamation Grant for $99,864 to produce a Lower American River Gravel Budget and evaluate inter-gravel flow in spawning gravels. This project supported graduate and undergraduate students who refined permeability models based on heat flow, and began a gravel budget study of the Lower American River.
2004/2005: Bureau of Reclamation Grant for $97,390 supported graduate and undergraduate students in geology and chemistry. This project involved habitat suitability of spawning gravels on the Lower American River. Students measured field conditions and gravel mobility and their relationship to salmonid spawning.
2003/2004: Bureau of Reclamation Grant for $103,000 supported three graduate students and a chemistry technician to continue work on gravel assessment and salmon spawning habitat on the Lower American River.
2002/2003: Bureau of Reclamation Grant for $97,400 supported two graduate students to work on gravel assessment and salmon spawning habitat on the Lower American River.
1997-2000: NSF CCLI award for $105,000 allowed us to purchase new equipment and develop curriculum modules that relate to stream flow and water quality. This grant was awarded to Tim Horner and Kevin Cornwell, and had a duration of three years.
1996-1999: coauthor on $220,000 Grant from the W. M. Keck Foundation provided funding for "Hydrogeologic Instrumentation".

Click below for more information about my background and experience:

Resume

Click below for more information about my teaching experience:

ePortfolio

Research Projects and Professional Interests

My research interests include salmon spawning habitat, hyporheic flow, groundwater/ surface water interaction, groundwater and surface water sampling and instrumentation, streambed restoration, and sedimentology (Cenozoic history of the Central Valley). Recent publications, technical reports (as submitted to agencies) and M.S. theses from graduates can be accessed below:

Horner, T.C., Bean, J., and Rosenberry, J., American River Degradation Study, 2014.

American River Degradation Study

Janes, M. K., 2013, Designing salmonid spawning restoration habitat to be dynamic and natural: heterogeneous geochemical and physical features, unpublished M.S. thesis, 43 p.

Janes, M.K., 2013

Heffernan, J., 2013, Geologic Assessment of Salmonid Spawning habitat on the Feather River, Oroville, CA, unpublished M.S. thesis, submitted to the CA Department of Water Resources, Oroville Office, 126 p.

Heffernan, J., 2013

Bean, J. A., 2013, Physical and geochemical characteristics of the Lower Sailor Bar 2012, Upper Sunrise 2010/2011, Upper Sailor Bar 2009, and Upper Sailor Bar 2008 gravel additions, edited by Tim Horner, CSUS Geology Department, with assistance from: M. Katy Janes, Joe Rosenberry, Jay E. Heffernan, Michael O’Connor, Chris Hall, Lewis Lumen, Nick Novotny, and Anthony Paradiso, 134 p.

2012 site assessment

Horner, T. C., 2013, Pre-assessment of Riverbend 2013 Site, American River, CA, submitted by Tim Horner, CSUS Geology Department, with assistance from Nick Novotny, M. Katy Janes, Jay E. Heffernan, Joe Rosenberry, Jessica Bean, Chris Hall, Lewis Lummen, Anthony Paradiso, 20 p.

Riverbend site assessment

Janes, M. K., Heffernan, J., Rosenberry, J., Adrian, J., and Novotny, N., 2013, Physical and geochemical characteristics of the Upper Sailor Bar 2008, Upper Sailor Bar 2009 and Upper Sunrise 2010/2011 gravel additions, ed. by Horner, T.C., unpublished report to the U.S. Bureau of Reclamation, Sacramento office, 105 p.

Janes et al., 2011/12 gravel addition

Paulinski, S., 2012. Structural, hydrogeologic framework, and textural model of the Rialto-Colton Basin and the Chino and North Riverside Area. unpublished M.S. thesis, CSUS library, 170 p.

Paulinski, S., 2012

Redd, R., 2010. Physical and geochemical characteristics at three restoration sites on the American River. unpublished M.S. thesis, CSUS library, 237 p.

Redd, R., 2010

Redd, R., and Horner T.C., 2010. Physical and geochemical characteristics of the 2009 Sailor Bar gravel addition. unpublished report to the U.S. Bureau of Reclamation, Sacramento office, 77 p.

2009 Sailor Bar gravel addition assessment

Leathers, T., 2010. Stream migration and sediment movement on Lower Cache Creek from Capay Dam to Interstate 5 at Yolo, CA. unpublished M.S. thesis, CSUS library, 134 p.

Leathers, T., 2010

Redd R., and Horner T.C., 2009. Physical and geochemical characteristics of the Lower Sunrise side channel restoration project. submitted to the Sacramento Water Forum, 96 p.

2009 Lower Sunrise side channel assessment

Redd, R., and Horner, T.C., 2008. Physical and geochemical characteristics of the 2008 Sailor Bar gravel addition. submitted to the U.S. Bureau of Reclamation, Sacramento office, 75 p.

2008 Sailor Bar gravel addition site assessment

Kondolf, G.M., Williams, J.G., Horner, T.C., and Milan, D, 2008, Assessing physical quality of spawning habitat. American Fisheries Society Symposium v. 65, 26 p.

Kondolf et al., 2008

Fairman, D., 2007. A gravel budget for the Lower American River. Unpublished M.S. thesis, CSUS library, 158 p.

Fairman, D., 2007

Silver, M., 2007. Heat as a tracer to examine flow in the streambed of a large, gravel-bed river. Unpublished M.S. thesis, CSUS library, 51 p.

Silver, M.H., 2007

Zamora, C., 2006. Estimating rates of exchange across the sediment/water interface in the Lower Merced River, CA. M.S. thesis, CSUS library, 102 p.

Zamora, C., 2006

Bush, N., 2006. Natural water chemistry and vertical hydraulic gradient in the hyporheic zone of the Cosumnes River near Sacramento, California. Unpublished M.S. thesis, CSUS library, 202 p.

Bush, N.J., 2006

Morita, E., 2005. The relationship between streambed topography, hyporheic flow, and pore water geochemistry in salmon spawning gravels of the American River, Sacramento. Unpublished M.S. thesis, CSUS library, 123 p.

Morita, E.T., 2005

Horner, T.C., 2005. Unpublished report to the Sacramento Water Forum: Site Assessment at the Lower Sunrise Side Channel: Surface Water, Pore Water and Intergravel Flow, 29 p.

Lower Sunrise Side Channel Baseline Report

Horner, T. C. 2005. Physical and geochemical characterization of American River spawning gravels. Unpublished report to the U.S. Bureau of Reclamation Sacramento Office, 148 p.

American River Gravel studies 2005

Horner, T. C., Titus, R., and Brown, M., 2004. Phase 3 Gravel Assessment on the Lower American River. Unpublished report to the U.S. Bureau of Reclamation Sacramento Office, 99 p.

American River Gravel studies 2004

Sunrise stranding pool 1 year report. CSUS students monitored a stranding pool site on the American River, and the one year report is available.

Sunrise stranding pool 1 year report

Geol 8 (Earth Science)	Geol 111 (Field methods)
Geol 8L (Earth Science Lab)	Geology 210 (Field Characterization of Aquifer Systems) is an internet-enhanced course. Click here for course information.
Geol 103 (Sedimentology and Stratigraphy) is an internet-enhanced course. Click here for course information.	Geology 200 (Graduate Research methods)
Geol 10 (Physical Geology) is an internet-enhanced course. Click here for course information.	Geology 230 (Seminar) - Groundwater/ surface water interaction is an internet-enhanced course. Click here for course information.
Geol 127 (Hydrogeology)	Geol 500 (M.S. thesis)
Water quality measurements