DC Water Treatment: The Washington Aqueduct System
An Unusual Regulatory Structure
Most states certify operators who work directly for the utility that owns and runs the treatment plant. The District of Columbia is different: the District Department of Energy and Environment (DOEE) is the certifying authority for Water Treatment operators, but DOEE does not itself own or operate DC's drinking water treatment plants. That responsibility belongs to the Washington Aqueduct, a division of the U.S. Army Corps of Engineers, Baltimore District -- a federally owned and operated water treatment system.
Understanding this split between who certifies you (DOEE) and who you likely work for (the Corps, at the Aqueduct) is foundational to understanding DC's operator landscape.
Source Water: The Potomac River
Unlike many states that blend surface water and groundwater sources, the