Luzerne County has reached a proposed $475,000 settlement with New Jersey-based contractor D.A. Nolt over water damage to the historic county courthouse in Wilkes-Barre, according to Tuesday’s county council work session agenda. County officials had filed an arbitration claim against the company in September 2015, arguing the company should pay $691,400 for damage to interior murals and plaster caused by its failure to properly cover the courthouse domes to prevent rain from getting in the building during its exterior restoration project, which wrapped up in 2013. The proposed settlement must be approved by the council. D.A.