From WV Free: On January 9, nearly 10,000 gallons of the chemical MCHM (used to prepare coal) leaked into the Elk River, putting 300,000 families at risk. Days after the chemical spill and news that “flushing” was in process to restore safe water to West Virginians, a new advisory was released by the Centers for Disease Control and Prevention cautioning pregnant women against drinking the water. That advisory for pregnant women remains in effect.