Chula Vista now joins a growing list of cities in the South Bay and San Diego County to declare a state of emergency over the Tijuana River sewage crisis.  A resolution brought forward by Mayor John McCann was unanimously approved by city council. It comes after McCann joined other mayors from the region to lobby for more funds in Washington D.C. While millions of dollars have been secured for improvements and upgrades to a wastewater treatment plant north of the border, McCann acknowledged more funding is still needed. “We know the estimate is probably a billion dollars,” McCann said.