(MI) Traverse City Record-Eagle - A downstate engineering firm will probe questions surrounding design and construction of Grand Traverse County’s troubled septage plant, an effort to determine whether its architects committed professional negligence.

The county’s Board of Public Works voted 7 to 1 this week to hire Grand Rapids-based engineering firm Prein & Newhof for up to $19,500 to investigate septage plant design firm Gourdie-Fraser Inc. and project manager Michael Houlihan. More