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would argue that savings of non-consumptive diversions may well be quite useful for water management in a given basin. Certainly, priority could well be placed on conserva- tion measures that would save or reduce consumptive losses to the system. Those might be evapo-transpiration, they might be evaporation, they might be percolation to saline sinks or to otherwise unrecoverable places. But even if we assume that all of the conservation measures that are available to a given district would simply save water that gets back into the system anyway. There may well be some substantial values in reducing the initial diversion require- ments and in maintaining some of those supplies in storage where it's much more controllable, and it can be made available for resource use at a time of year when it's most critical. Once you have these seepage losses, generally they're not controllable the ground water movements are not controllable, and you may find, yes, they're recharging streams, but they're recharging at a time of year when flows are not critical. And diversions are being made at a time of year when they are critical. So, those are considerations that suggest that non-consumptive as well as consumptive uses ought to be looked at and evaluated in a conservation program. A-(Dennis Underwood) Let me just add a little bit. I agree with Ed and Chuck and if I remember what I said about water conservation in my earlier remarks, that you had to look at it all the way from the point of diversion to the point of reuse and look at what you're really accom- plishing and where you potentially make your investments. I also agree with what Ed was saying that once you've done that and it potentially gets into back as a base flow, that may be a very effective way of actually providing for additional uses. But the other point that Ed made was once it's in a ground water basin, then you have limited use you're going to be pumping it out and you have limited utility you can potentially make if you kept it in the reservoir, you may have greater opportunities to get multiple uses out of that same drop of water. So, sometimes I mean you do have to look at the system, but there is some real merit to basically strategically where you keep the water how can you get the greatest utility out of it in terms of meeting multiple uses as opposed to just one or two uses. A-(Jeff Appel) One approach I might suggest to reduce the controversy. I don't think you're going to have a problem with these return flow issues if you start with an end user. The person at the end of the line probably ought to conserve, and some money ought to go toward that purpose in which case there'll be more available upstream, I think. 37