Birmingham Cave Spring, PA
I retired from full-time work as of January 2026. I am continuing part time under a research appointment for the next few years, wrapping up some funded projects and catching up on writing. I still have active research on urban hydrology, evaluating stormwater control measures, karst springs, hydrogeophysics, and groundwater contamination (PFAS most recently).
If you need a letter of reference, just email me. I am still checking!
That said, I am no longer accepting any graduate students.
Keep checking back for updates on research and publications! For a great look-back through time check out my Graduate and Undergraduate student pages.
Class field trip to wild cave
Professor
Temple University
Department of Earth and Environmental Science
1901 N 13th Street
Philadelphia, PA 19122
215 204 2352
ltoran@temple.edu
Toran_vita_2025
Google Scholar Link
Researchgate Profile
For links to recent publications, see research pages
Check out my free online book on Using Groundwater Head Maps.
My article in Encyclopedia of Water on Groundwater-Surface Water Interaction was highlighted for free download!