Biography
My recent research interests include stormwater sampling in karst springs, using continuous monitoring to study urban hydrology, evaluating stormwater control measures, applying hydrogeophysics to understand groundwater-surface water interactions, and fracture flow modeling.
Courses Taught
Number | Name | Level |
|---|---|---|
EES 3015 | Drone Shortcourse | Undergraduate |
EES 3021 | Groundwater Hydrology | Undergraduate |
EES 5015 | Drone Shortcourse | Graduate |
EES 8411 | Advanced Hydrogeology | Graduate |
Selected Publications
Recent
Ledford, S., Diamond2, J., & Toran3, L. (2021). Large spatiotemporal variability in metabolic regimes for an urban stream draining four wastewater treatment plants with implications for dissolved oxygen monitoring. PLoS ONE, 16(8 August). doi: 10.1371/journal.pone.0256292.
Ledford, S., Kurz, M., & Toran, L. (2021). Contrasting raz-rru stream metabolism and nutrient uptake downstream of urban wastewater effluent sites. Freshwater Science, 40(1), 103-119. doi: 10.1086/712932.
Beganskas, S., Ryan, R., Walters, E., Soro, M., Cushman, E., & Toran, L. (2021). Coupling PCSWMM and WASP to Evaluate Green Stormwater Infrastructure Impacts to Storm Sediment Loads in an Urban Watershed. Journal of the American Water Resources Association, 57(1), 134-153. doi: 10.1111/1752-1688.12896.
Beganskas, S. & Toran, L. (2021). Urban stream temperature patterns: Spatial and temporal heterogeneity in the Philadelphia region, Pennsylvania, USA. Hydrological Processes, 35(2). doi: 10.1002/hyp.14039.
Pope, G., Nyquist, J., Toran, L., Traver, R., & Zaremba, G. (2021). Time-lapse resistivity monitoring of a simulated runoff test of a bioswale in Philadelphia, Pennsylvania. Proceedings of the Symposium on the Application of Geophyics to Engineering and Environmental Problems, SAGEEP, 2021-March.
Berglund, J., Toran, L., & Herman, E. (2020). Can Karst Conduit Models Be Calibrated? A Dual Approach Using Dye Tracing and Temperature. Groundwater, 58(6), 924-937. doi: 10.1111/gwat.12988.
Ledford, S. & Toran, L. (2020). Downstream evolution of wastewater treatment plant nutrient signals using high-temporal monitoring. Hydrological Processes, 34(3), 852-864. doi: 10.1002/hyp.13640.
Guo, L., Lin, H., Fan, B., Nyquist, J., Toran, L., & Mount, G. (2019). Preferential flow through shallow fractured bedrock and a 3D fill-and-spill model of hillslope subsurface hydrology. Journal of Hydrology, 576, 430-442. doi: 10.1016/j.jhydrol.2019.06.070.
Berglund, J., Toran, L., & Herman, E. (2019). Deducing flow path mixing by storm-induced bulk chemistry and REE variations in two karst springs: With trends like these who needs anomalies? Journal of Hydrology, 571, 349-364. doi: 10.1016/j.jhydrol.2019.01.050.
Rossi, R. & Toran, L. (2019). Exploring the potential for groundwater inundation in coastal US cities due to interactions between sewer infrastructure and global change. Environmental Earth Sciences, 78(8). doi: 10.1007/s12665-019-8261-9.
Toran, L., Herman, E., & Berglund, J. (2019). Advances in monitoring to understand flow paths in karst: Comparison of historic and recent data from the valley and ridge of Pennsylvania. In Handbook of Environmental Chemistry, 68 (pp. 65-89). doi: 10.1007/978-3-319-77368-1_3.
Arnold, E. & Toran, L. (2018). Effects of bank vegetation and incision on erosion rates in an urban stream. Water (Switzerland), 10(4). doi: 10.3390/w10040482.
Price, J., Ledford, S., Ryan, M., Toran, L., & Sales, C. (2018). Wastewater treatment plant effluent introduces recoverable shifts in microbial community composition in receiving streams. Science of the Total Environment, 613-614, 1104-1116. doi: 10.1016/j.scitotenv.2017.09.162.
Toran, L. & Jedrzejczyk, C. (2017). Water level monitoring to assess the effectiveness of stormwater infiltration trenches. Environmental and Engineering Geoscience, 23(2), 113-123. doi: 10.2113/gseegeosci.23.2.113.
Nyquist, J., Toran, L., Pitman, L., Guo, L., & Lin, H. (2017). Testing the fill-and-spill model of subsurface lateral flow using ground- penetrating radar and dye tracing. Vadose Zone Journal, 17(1). doi: 10.2136/vzj2017.07.0142.
Edenborn, H., Barna, J., Fink, M., Herman, E., & Toran, L. (2017). Direct and continuous measurement of dissolved CO (sub 2) in karst springs. Retrieved from http://search.ebscohost.com/login.aspx?direct=true&db=geh&AN=2017-077969&site=ehost-live&scope=site&authtype=uid&user=ebony&password=lewis.
Nyquist, J., Kanaley, C., Burrell, S., Toran, L., Davatzes, A., & Brandt, C. (2017). A GeoPATH-funded math mentoring initiative for retention. Retrieved from http://search.ebscohost.com/login.aspx?direct=true&db=geh&AN=2018-012973&site=ehost-live&scope=site&authtype=uid&user=ebony&password=lewis.
Carsillo, V., Nyquist, J., Wong, T., & Toran, L. (2017). Mapping water infiltration of urban soils using electromagnetic induction and time-lapse electrical resistivity tomography. Retrieved from http://search.ebscohost.com/login.aspx?direct=true&db=geh&AN=2018-020250&site=ehost-live&scope=site&authtype=uid&user=ebony&password=lewis.
Berglund, J., Toran, L., & Herman, E. (2017). Monitoring thermal and geochemical differences of two adjacent springs. Retrieved from http://search.ebscohost.com/login.aspx?direct=true&db=geh&AN=2017-077869&site=ehost-live&scope=site&authtype=uid&user=ebony&password=lewis.