- Principal Hydrologist / Engineer
- 510-704-1000 x204
Jonathan manages projects quantifying flow hydraulics, riparian roughness, channel morphology, sediment-transport and hydrologic effects of proposed land use changes. Supervises construction of creek and river restoration projects. Responsible for many streamflow, constituent-transport, and recharge simulations. Evaluates historic flow records and identifies hydrologic patterns. Models stream network discharges and temporal requirements for targeted biological species to establish water availability for consumptive uses. Coordinates Balance’s stream gaging program, and manages Balance’s weekend-on-call storm-response monitoring program to collect high-flow and sediment field data. Participates in EIR/EIS analyses of drainage, water budgets, and likely effects of proposed land- or water-use changes on sensitive wetlands. Performs field investigations and modeling to assess flood levels in both natural streams and vegetated, urban, flood-control channels.
- M.S., Civil Engineering, University of California, Berkeley, 1993
- B.S. Engineering Sciences, Dartmouth College, 1990
Creek and River Restoration, Flow Measurements, GIS Analysis, Geomorphology, Grant Strategies and Management, Ground Truthing, Groundwater, Hydrology, Illustration, Outreach, Real-time Gaging, Sediment Budgets, Stream Gaging, Water Policy
- North Fork Sprague River Restoration, US Fish and Wildlife, Bly, Oregon
- Searsville Sediment Alternatives Analysis, Stanford University, San Mateo and Santa Clara Counties, California
- Guadalupe River mercury and water quality monitoring, SCVWD and EOA, Santa Clara County, California
- White, C., Owens, J., de Mallory, B., Shaw, D., Hecht, B., "Bear Creek Water Quality Study, 1999–2002, Woodside, San Mateo County, California"
- Owens, J., Hecht, B., Brown, S., and Chartrand, S., 2005, Sediment transport trends in watersheds west of San Francisco Bay: presented at 7th Biennial State of the San Francisco Estuary Conference
The combination of field work and office work to perform good science that is grounded in reality.
I have so many, it’s hard to choose. Gazos, El Corte de Madera, San Geronimo, San Francisquito.