NOVA SCOTIA — The mayor of Pictou and environmentalists have urged the provincial government and municipal leaders on the South Shore to be wary in their dealings with Northern Pulp’s parent company, Paper Excellence. On Thursday, the Houston government and Paper Excellence announced they had reached a deal that would end a $450-million lawsuit. Mayor Jim Ryan said that the four years since the mill operated have been good for his town, although the loss of jobs has been hard. …As for the possibility of a new mill, Ryan cautioned municipalities along the South Shore. …”Instead of doing everything they could to make sure the environment was protected and the health of residents was protected, I think they were looking for a minimum that could be reached.” Environmentalists were more pointed in their criticism of the company and the possibility of it setting up a new mill.