the ground water will be mixed with the hetch hetchy regional supply the sunset and suzette are a reservoir and it will be distributed over a large portion of the city the blue area will receive a blend of hetch hetchy water so not everyone in the city will receive it but it's not focused in one community but wide leely throughout san francisco are that will diverse that by 4 million gallons a day interest to make sure it's operating right one million gallons per day and then ramping up. this approach allows us to justify. we're pumping ground water into a coastal area if you petroleum too much you'll suck in seawater so we want to took as much as we can without causing problem >> is there any danger of seawater. >> yes. this is perfectly save water it's high quality and, in fact, i've been to the san francisco water supply but it was abandoned because the hetch hetchy was available but we've learned over time to be prepared for emergencies an important. >> if we turn to slide 3 it lays out the project facilities there are 6 there. the buildings in the upper right is the golden gate park it