MGI Construction completed demolition as well as heavy civil services for this project. With this, we installed a septic effluent tank for the company in 2015. This septic effluent tank allows any wastewater that the building produces to be effectively and efficiently managed. Molson Coors began its journey to what it is today in 1774. They got their start on the banks of the St. Lawrence River in Montreal. The three men behind this ever so famous Canadian brand are John Molson, Frederick J. Miller and Adolph Coors.