'Dire situation': Drought threatens Texas border county's lone water supply

ZAPATA, Texas (Border Report) -- The Rio Grande is at its lowest levels in almost three decades in rural Zapata County, and there isn't enough water to be drawn for the 15,000 border residents who depend on it as their sole water source, Border Report has learned.Dry rocks jut from the shores of Falcon Lake, where the Rio Grande runs into before it continues to the Gulf Coast. Stakes in the middle of the lake -- used to mark the international boundary line with Mexico -- stand feet exposed above