Last week we let you know that customers served by WSSC Water’s Potomac Water Filtration Plant (Potomac River) may notice a change in the taste and odor of their tap water because of algal activity in the Potomac River. The customer alert remains active on the WSSC website and the service map can be seen below.
Per WSSC, This temporary change is not harmful and is due to an increase in a naturally occurring substance, Geosmin, caused by warmer weather and low water levels in the Potomac River. The naturally occurring compound, Geosmin, has no health effects at the current concentration. Despite the taste and odor issues, the water remains safe, meeting all EPA Safe Drinking Water Act standards.