A large Dumpster full of wet carpet sat outside the front door of Montessori Community School on Monday, and the drone of industrial fans rose from the school’s damp and disheveled basement. The school was one of at least 35 structures with varying degrees of flood damage after a water pipeline became disconnected at 1700 South and Foothill Drive late Friday. An estimated 2.5 million gallons of "black water" — silt-heavy water on the same sanitary level as sewage — flowed down the south side of 1700 South.