The water situation remains critical at the Sierra Conservation Center. The prison´s water filtering system has been clogged by sediment in the water from the Tulloch Reservoir and forced prison officials to ration the amount of water available for inmates´ showers and cleaning. The prison has been trucking in extra water and on Friday officials began shutting off some spigots to bathrooms and sinks. Prison Lieutenant Jim Hurtado says this is the most drastic crisis involving water delivery at the prison in recent memory. On Monday officials will begin using a portable water-treatment system as a temporary fix and a way of bypassing the clogged filtering system. The Sierra Conservation Center is located near Jamestown and is home to more than 4000 inmates.