Address: 345 Middlefield Rd., MS-421,
Menlo Park, CA 94205
fax: (650)329-4538
John Nimmo, Physicist, Project Chief
(jrnimmo@usgs.gov) (650)329-4537Kim Perkins, Hydrologist
(kperkins@usgs.gov) (650)329-4551National Research Program | USGS | Water Resources | UZ Flow Homepage |