GUELPH – Grant Miller says he saw progress toward a contract deal dissolve over the course of a single day last week.By the evening of Aug. 5, talks between the City of Guelph and the union representing Guelph-Wellington's 207 paramedics had collapsed.Paramedics have been without a contract since December, and both sides are now heading to arbitration over the union's ask for higher wages, a process Miller said may take over a year.The union is …