City Council Minutes 1992 06 02 - Laserfiche WebLink

Metadata

Thumbnails

Annotations

Davidson: demands. We get into the average yield of 1,265 acre foot deficit at ultimate. At the water rights have a large capability in flows average or above, the capability goes way down, when the run-off decreases. We looked at the design drought with currently owned water rights. The design drought is low run-off, low flows. The type of deficit that the City is looking at, because the demand has gone up over 3,000 acre feet, is 4,568 acre feet of deficit in the first year and 4,793 acre feet deficit in the second year. The City has protection, when the water comes down, but not when the water doesn't come down. We analyzed what could be done about those deficits. We can acquire new water rights. Basically, the average supply vs. the ultimate means that with the purchase of new water rights shows that even with the ultimate you have 1,102 acre feet of deficit. Your protection is there during average conditions, but with the purchase of new water rights under the design drought is 3,668 acre feet at the end of the first year and it 3,536 acre feet at the end of the second year. This tells me that the City has a good performing portfolio of water rights in most years. Most years your water rights are yields above average. It also tells me that we need full yield water to overcome the drought deficits. The other thing we learned in dealing with each month of the year was that we need winter water to overcome winter shortages. We need to investigate the possibility of looking at reliable sources outside the basin. (REFERRING TO THE REPORT) Is the retrofit program an expensive thing to do and is the 4% saving figure a reasonable/reliable figure that could be saved? 18