 Legislation enacted in February 1878 effectively passed control of water releases from Sebago Lake to water users in Westbrook.As smaller Maine gunpowder mills went out of business following the civil war, Oriental Powder Company acquired the assets of the North Buckfield Powder Mill in 1880, the Warren Powder Mill in 1887, and the Camden Powder Mill in 1892.Machinery was salvaged from these mills, and a subsidiary Oriental Powder Company of Pennsylvania began manufacturing rock blasting powder at Fairchance, Pennsylvania in 1902.