The city council took up the 2020 Urban Water Management Plan last week with the hope of approving this latest five-year update. We described the stated concerns about shortages that came up during the study session last May here. Words like "alarming" and "worry" were in vogue back in May, but curiously absent last week as the UWMP was approved 5-0. I had sent several comments to the council based on my reading of the draft plan where I thought some more work was wise. We may get to all of them over time, but right now I just want to focus on the main question. When droughts inevitably come, do we have enough water? Apparently the various agencies involved think we do as seen in this Table 7-6 from the plan that covers the next 20 years.

These numbers are the SFPUC Regional Water System (RWS) estimates of our city's water availability if the "Save the Fish" maneuver called the Bay Delta Plan doesn't happen. The "Save the Fish" plan is tied up in court and negotiations, so this looks like great news! Over the next five years, if we have a dry year our availability drops 19.7% and then stays exactly the same even if the next four years are dry. Over the long run, things look even better. 20 years from now, if we have a dry year, our availability only drops 12.6% and thankfully stays exactly the same for the next four continuously dry years. I guess I have been worrying for no reason. Let's move on. The day after the council meeting, Wally from Dilbert explained why I feel better.



Leave a Reply