annual diversion requirement of 60,000 acre-feet some of which would be available as return flow for reuse. The Owens Valley unit of the plan should include this water among the demands to be supplied in the valley. Maintenance and improvement of natural streams must be included in plans. This would not require consumptive use of water if restricted to sections between reservoirs or between reservoirs and delivery points. A further consideration in formulation of water development plans must be the maintenance of coastal wetlands fed by drainages tributary to the sea. Wetlands of this type have all but disappeared. Diversions have reduced the feeder streams to trickles while harbor and shore constructions have extinguished the wetlands by ...