TerrAqua Resource Management's (TARM) new treatment facility in Williamsport, Pa., for wastewater generated from hydrofracking, well development and production was the first of its kind in Pennsylvania and required the firm, a subsidiary of Williamsport, Pa.-based Larson Design Group, to obtain a special “beneficial re-use permit” from the Pennsylvania Dept. of Environmental Protection. < Photo: Courtesy of TARM The custom facility contains 96 “frac” tanks to store and keep separate the watercoming from different clients. Related Links: Drilling for Treasure LDG principal Marty Muggleton says TARM saw a need that local sanitary authorities had trouble meeting and stepped in with
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.