The evidence of this mega drought in this region. in particular in lake mead which provides drinking water for more than 25 million people. the water levels are so low that its original valve put in in 1971 now sits above the water. so officials knew this was going to happen and in 2015 they started building a new valve that would go deeper. and that is what is in operation right now. it started operating this weekend, they say that things are going as planned, people are still getting their drinking water. but the thing is that this highlights the problem and how big this problem is, how low the water is. not just in lake mead, but in many of the lakes and resident vois reservoirs in the region. and california as a whole. so beginning june 1, at least 6 million people will be impacted because they are being told to only water their lawns once a week. and as we mentioned, it could get worse. that is what the metropolitan water district of southern california told us.