Police have arrested a Waterloo man who they say tried to arranged sex with a minor over the Internet. 27-year old Johnny Balvanz was taken into custody Tuesday on a charge of enticing away a minor. The arrest resulted from an on-line investigation conducted by Cedar Falls police. As part of the investigation, officers logged into a chat room and posed as a 15-year-old Cedar Falls girl. Investigators say Balvanz contacted the girl in a chat room and solicited her to meet for sex. Police say Balvanz arranged to meet the girl at Island Park in Cedar Falls. When Balvanz arrived, officers were waiting to arrest him.