Those who use the Yankton municipal water supply are receiving postcards with information of a violation of state water standards. City Manager Amy Nelson….

THM’s are byproducts of the water chlorination process.
Nelson says the new water treatment plant, now in the design phase, should eliminate those types of violations…..

Nelson says federal rules on water quality are also becoming tighter….

Bids for the new water plant will be opened next spring, and it may go online in 2018.