that water is currently being transferred to the extent possible into lake dell val. they're pumping into the lake and it will be available locally if they have to stop pumping through the delta. >> reporter: what's happening with the drought is being repeated in districts across california. >> we have 17 water agencies across the state that are if danger of run -- in danger of running out of drinking water in the next 60 to 100 days. >> reporter: but even though agencies may have unused allocations due them. the drought may cut that short too. if the water gets too salty to drink. >> the impacts are going to be largely on landscaping this summer i believe. we have enough water to serve all the public health and safety needs of the community. >> reporter: tri-valley residents will be asked to cut back water use some 20% maybe more. above the livermore valley, don knapp, kpix 5. >> could cost california farmers and ranchers $5 billion in revenue this year. with water at a premium. everything from milk and beef to basic crops could be harder to produce. cart i evans wen

that water is being transferred to the extent possible into lake dell val so they're pumping into the lake and then it willing available locally if they have to stop pumping through the delta. >> what's happening with the tri valley drought and loss of state water is being repeated in districts across california. >> we have 17 agencies across the state in danger of running out of drinking water in 60 to 100 days. >> even though water agencies like zone 7 may have unused allocations due them they may cut that too if it gets too salty to drink. >> the impacts will be largely on landscaping. we have enough in the basement, well capacity, to serve public and health safety needs of the community. >> residents will be asked to cut back water use 20%, maybe more if rain or snow doesn't arrive in the sierra any time soon. >> it's not just a lack of water. there has also been an increase in demand. the tri valley for example has more than doubled people in dublin and other areas. i tri valley has seen incredible growth in population. the number of people in dublin has more than tripled since 1