On November 27, 2016, an unknown oily sheen was observed on the river near the Dickerson Power Plant yesterday. The source of the sheen, the chemical make-up of the sheen, and the length were unknown at that time. WSSC:
The filtration plant continues to operate and the entire water system is currently operating at full capacity.
Throughout this event, no chemical sheen or other contamination has been detected via testing or visual inspection around the raw water intake.
On 12/5/2016, the EPA with the assistance of Unified Command partners and the U.S. Coast Guard positively identified the substance causing the sheen as approximately 150 gallons of turbine oil from the NRG Energy Power Plant in Dickerson, Maryland. WSSC remains in emergency response operations and has continued all of the mitigation and protection activities listed above.
Drinking water produced by WSSC is safe to drink.