BLOOMINGTON, Ind. (AP) _ The city of Bloomington may spend about $100,000 for an engineering study of the city's drinking water supply and its water treatment methods.

Bloomington Utilities Director Patrick Murphy says the department is concerned about rising levels of disinfectant byproducts caused by the city's treatment of water from nearby Lake Monroe. A recent report assessing the city's 2014 water quality shows the disinfectant byproducts are within allowable levels but have been increasing slowly over the past few years.

Murphy tells The (Bloomington) Herald-Times (http://bit.ly/1QkRxju) that officials are moving toward hiring an engineering firm to analyze the city's water and treatment methods in hopes of reducing the potentially harmful byproducts.

He says the issue is expected to go before the city's Utilities Service Board in the coming weeks.