Marietta Water posted the following statement on the City of Marietta’s website:
Water customers in Marietta may have noticed a different taste and smell from their tap water over the last several days. Our regional water sources, including the Chattahoochee River and Allatoona Lake, are currently experiencing high levels of Methyl-Isoborneol (MIB), a naturally occurring compound in water sources. MIB is not a health concern but can cause an earthy or musty taste or smell.
Increases in MIB typically occur in the fall of the year, with changes in the temperature and water level in the reservoirs. MIB is difficult to remove during water treatment and requires advanced treatment processes. Our regional water provider, the Cobb County-Marietta Water Authority, has increased these treatment methods to help offset the record MIB levels we are seeing this season. Because the metro area shares water sources, many utilities in the region are experiencing the same issue…