Table 2. Access and resilience.     Case Studies Potter Valley Redwood Valley Santa Rosa Round Valley Tribes Mechanisms to Access Water Rights-based Early contractual rights for “abandoned” water ~20 000 ac-ft/yr Extremely limited rights to “surplus” water Contractual rights 29 100 ac-ft/yr Federally reserved water and fishing rights           Physical form Gravity-fed irrigation canals Small storage pond Surface water pumping Groundwater pumping Two large reservoirs Surface water pumping Unable to physically access their “paper” rights           Technology Potter Valley Project Limited SCWA water supply and distribution system Limited           Capital Extensive Limited Extensive Limited           Markets Sells water Buys water Buys water No market transactions involving water           Social networks Strong on a local scale Limited Strong on a regional and state scale Limited           Authority Inland Water & Power Commission has the right-to-first-refusal on new water projects in Mendocino County Limited County Board of Supervisors is also the SCWA Board of Directors, ensuring that Santa Rosa interests will be protected Status as a sovereign nation confers access to tribal legal assistance Potential Resilience Contingent on its ability to maintain the diversion and/or gain access to other water sources Limited as it has no secure forms of access Robust as it has multiple, extensive, and secure forms of access Contingent on its ability to maintain access to legal resources