More frustrating news has surfaced for the West Virginia residents affected by the Freedom Industries chemical spill: federal and state investigators learned on Tuesday that a previously unreported chemical was in the tank that leaked on January 9th. The tank that leaked MCHM also contained PPH, a type of polyglycol ether used in many applications including industrial manufacturing and medicine.

It has been reported that 300 gallons of PPH leaked in the Elk River. The West Virginia American Water Co. says it believes the normal water treatment process would remove PPH without additional measures, but the company is conducting more test on water samples taken just after the leak to confirm this. West Virginia residents are still primarily concerned with MCHM, especially after last week when the CDC chimed in, urging pregnant women in the area to drink only bottled water until there are no more "detectable levels" of MCHM in the water supply. If the limited data about PPH is correct, it won't supersede MCHM as West Virginia's biggest concern, but another unknown chemical leaking into the water supply is not what the community wants to hear.