A series of winter storms brought some much needed rain to San Diego, but after years of drought, what has the wet weather done for local reservoirs? The City of San Diego goes through almost 200 million gallons of water a day, and even though January has been exceptionally wet, only ten-percent of water use comes from rainfall. City spokesperson Arian Collins said of the nine local reservoirs, none are at capacity and only two are fed by rainfall. The Barrett and Morena reservoirs are only at three and ten-percent capacity, respectively.