LIESL L. TIEFENTHALER – Senior Research Technician


EDUCATION:

B.S., Marine Biology, California State University, Long Beach, 1991

AREAS OF EXPERTISE:

Tiefenthaler is an aquatic biologist specializing in the fate and effect of contaminants in storm water runoff and wetlands. Her previous work has included studying the sources and fate of wet and dry weather runoff and diffuse sources such as atmospheric deposition for a variety of contaminants such as heavy metals, pesticides, organic contaminants, and nutrients. Her most recent work has included estimating stormwater concentrations and loadings of bacteria and nutrients for the purpose of characterizing “natural background” concentrations and loads to streams and beaches. Her current research areas focus on the ecological impacts of hydrologic alteration, particularly in intermittent streams and sea level rise and global climate change impacts in coastal regions. 

PROFESSIONAL EXPERIENCE:

Senior Research Technician, Southern California Coastal Water Research Project. Costa Mesa, CA. 2009-Present

Scientist, Southern California Coastal Water Research Project. Costa Mesa, CA. 2006-2009

Senior Research Technician, Southern California Coastal Water Research Project. Costa Mesa, CA. 1999-2006

Research Technician, Southern California Coastal Water Research Project. Costa Mesa, CA. 1994-1999

Bioassay Technician, Marine Biological Consultants Applied Environmental Sciences. Costa Mesa, CA. 1992-1993

Marine Biology Camp Director, City of Long Beach Department of Parks and Recreation. Long Beach, CA. 1988-1991

HONORS AND AWARDS:

Phi Eta Sigma, Alpha Lambda Delta (National Scholastic Honor Society)

Dean's List, California State University, Long Beach

PROFESSIONAL SOCIETIES AND CERTIFICATIONS:

National Society of Environmental Toxicology and Chemistry (Southern California/Southwest Chapter)

Southern California Academy of Sciences

Scuba Diver, Research Scuba Diver

American Red Cross (CPR, Advanced First Aid, Advanced Lifesaving)

Certified Fork Lift Operator

Range Safety (RSO) Certified at Marine Corp Base Camp Pendleton

PUBLICATIONS:

Schiff, K.C., Tiefenthaler, L.L., Bay, S.M., and Greenstein, D.J. (2016). Effects of Rainfall Intensity and Duration on the First Flush from Parking Lots

Sengupta, A., M. Sutula, K. McLaughlin, M. Howard, L.L. Tiefenthaler, T. Von Bitner, A. Anslem, and F. Gonzalez. Riverine nutrient loads and fluxes to the Southern California Bight (USA). Estuaries and Coasts, 2013.

Lao, W., L.L. Tiefenthaler, D.J. Greenstein, K.A. Maruya, S.M. Bay, K. Ritter, and K.C. Schiff. Pyrethroids in Southern California Coastal Sediments. Environmental Toxicology and Chemistry 31:1649-1656.

Tiefenthaler, L.L., E.D. Stein, and K.C. Schiff. 2011. Levels and patterns of fecal indicator bacteria in stormwater runoff from homogenous land use sites and urban watersheds. Journal of Water and Health 9:279-289

K.C. Schiff and L.L. Tiefenthaler. 2011. Seasonal flushing of pollutant concentrations and loads in urban stormwater. Journal of the American Water Resources Association 47:136-142.

Schiff, K.C. and L.L. Tiefenthaler. 2010. Seasonal flushing of pollutant concentrations and loads in urban stormwater. Journal of the American Water Resources Association 1-7:1752-1688.

Tiefenthaler, L.L., E.D. Stein, and G.S. Lyon. 2009. Fecal indicator bacteria (FIB) levels during dry weather from southern California reference streams. Environmental Monitoring and Assessment 155:477-492.

Tiefenthaler, L.L., E.D. Stein, and K.C. Schiff. 2008. Watershed and land use-based sources of trace metals in urban stormwater. Environmental Toxicology and Chemistry 27:277-287.

Stein, E.D., L.L. Tiefenthaler, and K.C. Schiff. 2006. Watershed-based sources of polycyclic aromatic hydrocarbons (PAHs) in urban stormwater. Environmental Toxicology and Chemistry 25:373–385.

Stein, E.D. and L.L. Tiefenthaler. 2005. Dry-weather metals and bacteria loading in an arid, urban watershed: Ballona Creek, California. Water, Air, and Soil Pollution 164:367-382.

Greenstein, D.J., L. Tiefenthaler, and S. Bay. 2004. Toxicity of parking lot runoff after application of simulated rainfall. Environmental Contamination and Toxicology 47:199-206.

Lu, R., R.P. Turco, K. Stolzenbach, S.K. Friedlander, C. Xiong, K. Schiff, L. Tiefenthaler, and G. Wa. 2003. Dry deposition of airborne trace metals on the Los Angeles Basin and adjacent coastal waters. Journal of Geophysical Research 108:4074.

Leecaster, M.K., K. Schiff, and L.L. Tiefenthaler. 2002. Assessment of efficient sampling designs for urban stormwater monitoring. Water Research 36:1556-1564.

Bay, S., K. Schiff, D. Greenstein, and L. Tiefenthaler. 1998. Stormwater runoff effects on Santa Monica Bay: Toxicity, sediment quality, and benthic community impacts. pp. 900-921 in: O.T. Magoon, H. Converse, B. Baird, and M. Miller-Henson (eds.), California and The World Ocean '97, Volume 2. American Society of Civil Engineers. Reston, VA.

Greenstein, D. and L. Tiefenthaler. 1997. Reproduction and Population Dynamics of a Population Grandidierella japonica (Stephensen) (Crustacea: Amphipoda) in Upper Newport Bay, California. Bulletin of the Southern California Academy of Sciences 96:34-42.

TECHNICAL REPORTS:

L Tiefenthaler, M Sutula, J Griffith, and M Raith. (2016). Microbiological water quality at reference beaches and an adjoining estuary in Southern California during a prolonged drought. Technical Report 936. Southern California Coastal Water Research Project. Costa Mesa, CA.

L Tiefenthaler, M Sutula, Y Cao, J Griffith, M Raith, C Beck, R Christoph, J Shrake. (2015). Wet and dry weather natural background concentrations of fecal indicator bacteria in San Diego, Orange, and Ventura County, California streams. Technical Report 862. Southern California Coastal Water Research Project. Costa Mesa, CA

Sengupta A, Sutula M, Howard M, McLaughlin K, Tiefenthaler L, VonBitner T, 2013, Terrestrial Nutrient Loads and Fluxes to the Southern California Bight (USA). Southern California Coastal Water Research Project Annual Report. Costa Mesa, CA

Schiff, K.C., R. Gossett, K. Ritter, L.L. Tiefenthaler, N. Dodder, W. Lao, and K.A. Maruya. 2011. Southern California Bight 2008 Regional Monitoring Program: III sediment chemistry. Technical Report 661. Southern California Coastal Water Research Project. Costa Mesa, CA.

Tiefenthaler, L.L., E.D. Stein, and G.S. Lyon. 2008. Fecal indicator bacteria (FIB) levels during dry weather from southern California reference streams. Technical Report 542. Southern California Coastal Water Research Project. Costa Mesa, CA.

Tiefenthaler, L.L., E.D. Stein, and G.S. Lyon. 2008. Fecal indicator bacteria levels during dry weather in southern California reference streams. pp. 163-174 in: S.B. Weisberg and K. Miller (eds.), Southern California Coastal Water Research Project 2008 Annual Report. Costa Mesa, CA.

Tiefenthaler, L.L., E.D. Stein, and K.C. Schiff. 2008. Origins and mechanisms of watershed and land use based sources of fecal indicator bacteria in urban stormwater. pp. 153-161 in: S.B. Weisberg and K. Miller (eds.), Southern California Coastal Water Research Project 2008 Annual Report. Costa Mesa, CA.

Stein, E.D., L.L. Tiefenthaler, and K.C. Schiff. 2008. Comparison of stormwater pollutant loading by land use type. pp. 15-27 in: S.B. Weisberg and K. Miller (eds.), Southern California Coastal Water Research Project 2008 Annual Report. Costa Mesa, CA.

Tiefenthaler, L.L., E.D. Stein, and K.C. Schiff. 2007. Watershed and land use-based sources of trace metals in urban stormwater. pp. 13-29 in: S.B. Weisberg and K. Miller (eds.), Southern California Coastal Water Research Project 2007 Annual Report. Costa Mesa, CA.

Stein, E.D., L.L. Tiefenthaler, and K.C. Schiff. 2007. Sources, patterns and mechanisms of storm water pollutant loading from watersheds and land uses of the greater Los Angeles area, California, USA. Technical Report 510. Southern California Coastal Water Research Project. Costa Mesa, CA.

Stein, E.D., L.L. Tiefenthaler, and K. Schiff. 2006. Watershed-based sources of polycyclic aromatic hydrocarbons (PAHs) in urban stormwater. pp. 33-50 in: S. Weisberg and K. Miller (eds.), Southern California Coastal Water Research Project 2005-2006 Biennial Report. Westminster, CA.

Stein, E.D. and L.L. Tiefenthaler. 2004. Characterization of dry weather metals and bacteria in Ballona Creek. Technical Report 427. Southern California Coastal Water Research Project. Westminster, CA

Stein, E.D. and L.L. Tiefenthaler. 2004. Characterization and source identification of dry-weather metals and bacteria in Ballona Creek. pp. 179-191 in: S.B. Weisberg and D. Elmore (eds.), Southern California Coastal Water Research Project 2003-04 Biennial Report. Westminster, CA

Schiff, K.C. and L. Tiefenthaler. 2003. Contributions of organophosphorus pesticides from residential land uses during dry and wet weather. Technical Report 406. Southern California Coastal Water Research Project. Westminster, CA

Tiefenthaler, L.L., K.C. Schiff, S.M. Bay, and D.J. Greenstein. 2003. Effect of antecedent dry periods on the accumulation of potential pollutants on parking lot surfaces using simulated rainfall. pp. 216-223 in: S.B. Weisberg and D. Elmore (eds.), Southern California Coastal Water Research Project 2001-02 Biennial Report. Westminster, CA.

Tiefenthaler, L.L. and K.C. Schiff. 2003. Effects of rainfall intensity and duration on first flush of stormwater pollutants. pp. 209-215 in: S.B. Weisberg and D. Elmore (eds.), Southern California Coastal Water Research Project 2001-02 Biennial Report. Westminster, CA.

Greenstein, D.J., L.L. Tiefenthaler, and S.M. Bay. 2003. Toxicity of parking lot runoff after simulated rainfall. pp. 199-208 in: S.B. Weisberg and D. Elmore (eds.), Southern California Coastal Water Research Project 2001-02 Biennial Report. Westminster, CA

Stolzenbach, K., R. Lu, C. Xiong, S. Friedlander, R. Turco, K. Schiff, and L. Tiefenthaler. 2001. Measuring and modeling of atmospheric deposition on Santa Monica Bay and the Santa Monica Bay Watershed. Technical Report 346. Southern California Coastal Water Research Project. Westminster, CA

Tiefenthaler, L., K. Schiff, S. Bay, and D. Diehl. 2001. Characteristics of parking lot runoff produced by simulated rain. Technical Report 343. Southern California Coastal Water Research Project. Westminster, CA

Leecaster, M., K. Schiff, and L. Tiefenthaler. 2001. Assessment of efficient sampling designs for urban stormwater monitoring. pp. 45-51 in: S. Weisberg and D. Hallock (eds.), Southern California Coastal Water Research Project 1999-2000 Annual Report. Westminster, CA.

Schiff, K. and L. Tiefenthaler. 2001. Anthropogenic versus natural mass emissions from an urban watershed. pp. 63-70 in: S. Weisberg and D. Hallock (eds.), Southern California Coastal Water Research Project 1999-2000 Annual Report. Westminster, CA.

Tiefenthaler, L., K. Schiff, and M. Leecaster. 2001. Temporal variability patterns of stormwater concentrations in urban stormwater runoff. pp. 52-62 in: S. Weisberg and D. Hallock (eds.), Southern California Coastal Water Research Project 1999-2000 Annual Report. Westminster, CA.

Bay, S., K.C. Schiff, D.J. Greenstein, and L.L. Tiefenthaler. 1997. Stormwater runoff effects on Santa Monica Bay: toxicity, sediment quality, and benthic community impacts. Technical Report 300. Conference Proceedings for California and the World Ocean '97.

Tiefenthaler, L.L. and M.A. Skracic. 1996. Development of sediment bioassays using newly settled California halibut, Paralichthys californicus. pp. 85-90 in: M.J. Allen, C. Francisco, and D. Hallock (eds.), Southern California Coastal Water Research Project 1994-1995 Annual Report. Westminster, CA.

Greenstein, D.J. and L.L. Tiefenthaler. 1995. Reproduction and population dynamics of Grandidierella japonica in Upper Newport Bay. pp. 101-105 in: J.N. Cross, C. Francisco, and D. Hallock (eds.), Southern California Coastal Water Research Project 1993-1994 Annual Report. Westminster, CA.