Andy D. Seidel

Nuverra Environmental Solutions, Inc. engages in the development and ongoing production of oil and natural gas from shale formations. It operates through the following segments: Rocky Mountain, Northeast, Southern, and Corporate and Other. The Rocky Mountain segment includes the Bakken shale area. The Northeast segment is comprised of the Marcellus and Utica shale areas. The Southern segment covers the Haynesville shale area. The Corporate and Other segment includes certain corporate costs and certain other corporate assets. The company was founded on May 29, 2007 and is headquartered in Houston, TX.

Underground Solutions, Inc. is an infrastructure technology and pipeline rehabilitation company. It provides infrastructure technologies for water, sewer and conduit applications. The company was founded is headquartered in Poway, CA.

United States Filter Corp. provided water treatment service and equipment and replacement parts. The company provided services to municipal, industrial and institutional clients through its Water and Wastewater Systems, Water Services and Products groups. The company was founded in 1957 and was headquartered in Palm Desert, CA.

National Waterworks, Inc. provides water supply and maintenance services which include distribution of water and wastewater transmission products such as pipes, fittings, valves, meters, fire hydrants and other components used to transport clean water as well as wastewater between reservoirs and treatment plants. It is headquartered in Waco, TX.

Ostara Nutrient Recovery Technologies, Inc. provides nutrient recovery and phosphorus management solutions. Its chemical precipitation process removes phosphorous and ammonia (nitrogen) from a treatment facility's dewatering stream and creates pure crystalline pellets that are marketed as a commercial fertilizer called crystal green. The company was founded by Joseph E. McHugh, Don Mavinic, F. Phillip Abrary, Ahren T. Britton, and Edward Jones in 2005 and is headquartered in Vancouver, Canada.

UGSI Solutions, Inc. provides chemical feed and water disinfection technologies to municipal and industrial clients. It offers infrastructure technologies to the water, wastewater and energy industries. The company is headquartered in Milpitas, CA.

Seven Seas Water Corp. engages in the provision of water management services. It offers potable water, industrial applications, wastewater treatment, water recovery and reuse, and emergency water. The company was founded by Douglas R. Brown, Robert A. Bergstrom, and Frederick Hung in 1996 and is headquartered in Tampa, FL.