Barry Hecht, M.S., P.G., CEG, CHg, Senior Principal
Barry Hecht has been consulting for more than 45 years in many areas of habitat hydrology, hydrogeology and geomorphology. He previously served as Chief Hydrologist/Geologist with Kleinfelder and H. Esmaili & Associates, and served with US Geological Survey and US Forest Service research groups. Mr. Hecht taught for 3 years at UC Santa Cruz and lectures regularly at UC Berkeley.

• Professional Geologist (CA, OR, AK), Certified Engineering Geologist (CA, OR), Certified Hydrogeologist (CA)
• PhD Cand. Geography, University of California, Berkeley, 1975
• M.A. Geography, University of California, Berkeley, 1972
• B.S. Geology, University of California, Santa Cruz, 1970
• B.A. Geography and Regional Planning, University of California, Santa Cruz, 1970




  • Bauder, E., Bohonak, A., Hecht, B., Simovich, M., Shaw, D., Jenkins, D., and Rains, M., 2009, A Draft Regional Guidebook for Applying the Hydrogeomorphic Approach to Assessing Wetland Functions of Vernal Pool Depressional Wetlands in Southern California: Balance Hydrologics, Inc. project number 98078, guidebook prepared for EPA Region 9 and San Diego State University, 199 p, 17 tables, 12 figs. and 4 appendices (pdf)

  • Lagunitas Creek Sediment and Riparian Management Plan, Marin County, California: Streambed Monitoring Report, 1995-2007, by Barry Hecht, Mark Strudley, and Scott Brown, May 2010 (pdf)

  • Owens, J., and Hecht, B., 1998, Existing flows, ground-water and water-quality influences on habitat values in the Shasta Valley, Siskiyou County, California: Balance Hydrologics project number 9706, consulting report prepared for Yurok Tribe Natural Resources Department, 14 p, 3 tables, and 7 figs (pdf)

  • Hecht, B., and Kamman, G., 1996, Initial Assessment of Pre- and Post-Klamath Project Hydrology on the Klamath River and Impacts of the Project on Instream Flows and Fishery Habitat, California and Oregon: Balance Hydrologics, Inc. project number 9506, consulting report prepared for The Yurok Tribe, 45 p., 2 tables, 31 figs. and 2 appendices (pdf)

  • Hecht, B. and Finnerty, A., 1993, Interactions Between Surface and Ground Water in Potential Riparian Habitat Zones of the Mono Basin, Mono County, California: Balance Hydrologics, Inc. project number 9073, consulting report prepared for Jones & Stokes Associates, 45 p., 49 figs. and appendix (pdf)

  • Learning from the ashes: Being informed by 50 years of post-fire observations on California's Central Coast by Barry Hecht, Mark Strudley, Sarah Richmond, and Jennie Munster, 2009 (ppt)

  • Guensch, G., Hecht, B., and Chartrand, S., 2009, Alternative approaches to multi-species passage past a high irrigation diversion - Five Mile Creek, Sprague River Basin, OR: 43rd Annual Conference of the American Fisheries Society, CalNeva, Santa Rosa, California, April 1-3, 2009 (ppt)

  • Porter, S., Mallory, B., and Hecht, B., 2002, Review of phase II instream 'unimpaired' flows in the Klamath River: Balance Hydrologics, Inc., consulting report prepared for the Yurok Tribe, 32 p., and 4 tables (pdf)

  • Bartholomaus T., Stamm, J., Hecht, B., and Shyphers, G, 2008, Monitoring-based annual water balances as targets for low impact development - Sonoma Mountain Village case study: Presentation for ASCE 2008 International Low Impact Development Conference (pdf)

  • Shaw, D., Hecht, B., and Thompson, K., 2008, Hydrology and Geology Assessment of the Pismo Creek Watershed, San Luis Obispo County, California: Balance Hydrologics, Inc., project number 207133, consulting report prepared for Central Coast Salmon Enhancement, 43 p., 8 tables, 16 figs., and 3 appendices (pdf)

  • Shaw, D., Anderson, S., Levine, J., Tollefson, K., Hecht, B., and Bauder, E., 2006, Characterizing the morphology and function of San Diego vernal pools: Poster prepared for the 2006 Southern California Wetlands Recovery Project Symposium, March, 2006. (pdf)

  • Woyshner, M.R., Hecht, B., Yurovsy, T., and Irving, G.,2005, Spring-supported wetland and riparian habitat, a core for managing bedrock ground water: State of the San Francisco Estuary Conference, 7th Biennial, Oakland, California, October 2005. (pdf abstract)

  • White, C., Owens, J., Mallory, B., Shaw, D., and Hecht, B., 2005, Bear Creek water quality study, 1999-2002, Woodside, San Mateo County, California: State of the San Francisco Estuary Conference, 7th Biennial, Oakland, California, October 2005. (pdf abstract)

  • Brown, S., Chartrand, S., Hecht, B.,and Owens, J., 2005, Sediment transport trends in watersheds of the San Mateo Peninsula: State of the San Francisco Estuary Conference, 7th Biennial, Oakland, California, October 2005. (pdf abstract)

  • Brown, S., Hecht, B., and Porter, S., 2005, Geomorphic field-based methods for assessing the impacts of hydromodification on stream channels: State of the San Francisco Estuary Conference, 7th Biennial, Oakland, California, October 2005. (pdf abstract)

  • White, C., Hecht, B., and Porras, G., 2004, Maintaining recharge to springs and seeps downgradient from residential developments - an analysis from Bodega Bay, California: Groundwater Resources Association, 13th Annual Meeting, Rohnert Park, California, September 23-24, 2004. (pdf) (pdf abstract)

  • Brown, S., Woyshner, M.R., and Hecht, B., 2004, Sources and pathways of ground-water flow to granitic canyon streams as inferred from variations in dry season baseflow, Carmel River watershed, California: Proceedings of the 13th Annual Groundwater Resources Association Meeting, September 23-24, 2004. (pdf abstract)

  • Chartrand, S., and Hecht, B, 2004, Storm inflows and sensitive species - two new frontiers of karst hydrogeology: Groundwater Resources Association,13th Annual Meeting, Rohnert Park, California, September 23-24, 2004. (pdf) (pdf abstract)

  • Hecht, Barry, 2000, Overview of selected hydrologic processes affecting hydrogeomorphic assessment of Southern California vernal pools: Initial \'A Team\' meeting for the Hydrogeomorphic Guidebook for Southern California Vernal Pools, San Diego, California, June 19-22, 2000, 7 p. (pdf)

  • Hecht., B. and Ballman, E., 1999, Erosion of Hoods Creek--Whittle and Hertlein properties: Balance Hydrologics, Inc. technical memo to Stockton East Water District, 11 p. (pdf)

  • Hecht, B., and Owens, J., 1996, Approaches to in-situ calculation of floodplain roughness in Coast to Coast, Association of State Floodplain Managers 20th Annual Conference, San Diego, California, 1996, Proceedings :San Diego, California, Association of State Floodplain Managers, p. 142-148. (pdf)

  • Ricker, J., Hantzsche, N., Hecht, B., and Kolb, H., 1994, Area-wide wastewater management for the San Lorenzo River Watershed, California: Proceedings of the Seventh National Symposium on Individual and Small Community Sewage Systems, American Society of Agricultural Engineers, Atlanta Georgia, December 11-12, 1994 p. 355-366 + 1 figure. (pdf)

  • Hecht, B., 1993, South of the Spotted Owl - restoration strategies for episodic channels and riparian corridors in Central California: proceedings of the Society of Wetlands Scientists, Western Wetlands Conference, Davis, California, March 25-27, 1993, 7 p., 7 figs. (pdf)

  • Fiedler, G., Hecht, B., Hoexter, D., Knudsen K., and Laduzinsky, D., 1992, Creep and downslope movements in the Hayward Fault Zone in North Berkeley - ten years later: Proceedings of the Second Conference on Earthquake Hazards in the Eastern San Francisco Bay Area, California Department of Conservation, Division of Mines and Geology Special Publication 113, 7 p. + figures (pdf)

  • Hecht, Barry, 1992, Trinity Lake carryover storage calculations: Oral Testimony on behalf of Trinity County, State Water Resources Control Board Bay-Delta Hearings, July 10, 1992, 6 p.

  • Hecht, Barry, 1992, Sediment quality of tailings ponds - considerations for planning: Ninth Annual Dredging and Placer Mining Conference-New Placer Mining Technology and Successful Reclamation Plans, Reno, Nevada, May 18-20, 1992, 20 p. (pdf)

  • Hecht, B., and Woyshner, M.R., 1991, Natural restoration of normal bed conditions for steelhead spawning and rearing - Corralitos and Browns Creeks, Santa Cruz County, California: The Ninth Annual California Salmon, Steelhead and Trout Restoration Conference, February 22-24, 1991, Santa Cruz, California, p. 24-25. (pdf)

  • Hanes, W., Hecht, B., and Stromberg, L., 1990, Water relationships of the vernal pools in the Sacramento Region, California: Prepared for Vernal pool plants-their habitat and biology, California State University, Chico, 12 p (pdf)

  • Hanes, T., Hecht, B., and Emery, B., 1990, Channel stability assessment of Shirley, Hoods, and Rock Creeks for instream conveyance of water supply: Balance Hydrologics, Inc. consulting report for Stockton East Water District, 88 p. (pdf)

  • Hecht, B., and Jett, G., 1988, Sedimentology and recharge of a Sierran glacial-valley aquifer, Squaw Valley, California: Poster session presented at The Subapline Montane Watersheds Symposium, June 9-10, 1988, Calneva Lodge, Lake Tahoe, 8 p. + appendix (pdf)

  • Woyshner, M.R., and Hecht, B., 1988, Sediment, solute and nutrient transport from Squaw Creek, Truckee River basin, California: Proceedings of the Subalpine Montane Watersheds Symposium, June 9-10, 1988, Cal Neva Lodge. Lake Tahoe, Nevada, 32 p. + tables, figures (pdf)

  • Woyshner, M.R.,and Hecht, B., 1988, Effects of residential development on vernal pool hydrology: Excerpts from a poster session, Wetlands 88 Conference, Oakland, California, 3 p.

  • Hecht, Barry, 1986, Cumlative contribution of roadbed erosion to spawning gravels abundance in a mountain stream [abs.]: Proceedings of the California Watershed Management Conference, November 1986, Sacramento, CA, p. 154.

  • Hecht, Barry, 1985, Appropriate uses of sediment-source tracing in habitat assessments of mountain streams: American Fisheries Society Symposium on Small Hydropower and Fisheries, Denver, Colorado, May 1-3, 1985, 9 p. (pdf)

  • Hecht, B., and Woyshner, M.R, 1984, Storm hydrology and definition of sand-hill recharge areas Pajaro Basin Appendix E, 32 p.- in Hecht, B., Esmaili, H., and Johnson, N.M., 1984, Pajaro Basin Groundwater Management Study: HEA, a division of J.H. Kleinfelder Associates, consulting report prepared for Association of Monterey Bay Area Governments, 237 p. + 8 appendices. (pdf)

  • Hecht, B., and Woyshner, M.R., 1984, Effects of riparian woodlands on roughness and channel capacity of the Pajaro River near Watsonville, CA: Prepared for Harvey and Stanley Associates, January 1984, 38 p. + appendix. (pdf)

  • Golling, R., and Hecht, B., 1982, Selected physical and chemical characteristics of diatomaceous mudstones, Big Basin Redwoods State Park Area: Prepared for State of California Division of Beaches and Parks Santa Cruz Mountains Unit, May 1982, 14p. (pdf)

  • Hecht, Barry, 1981, Sequential changes in bed habitat conditions in the Upper Carmel River following the Marble-Cone Fire of August 1977: Californian Systems Conference, University of California, Davis, September 17-19, 1981, 8 p. + tables, figures (pdf)