Athanor Environmental Services, 3940 Mayfield Ave, La Crescenta, CA 91214, US

Established in 1991, Aspen Environmental Group is a multidisciplined environmental company that specializes in a range of environmental impact assessment, power generation, mitigation monitoring and air quality permitting services. It offers a variety of flood control and watershed planning services, such as floodplain mapping, flood drainage assessment, watershed simulation, hydrologic routing, and analysis of detention basins and alternative flood control strategies. The various projects undertaken by the company include Matilija Dam Ecosystem Restoration, Canoga Park New Elementary School, Littlerock Reservoir, Los Angeles County Drainage Area and Diablo Canyon Nuclear Power Plant. In addition, it offers habitat restoration, hydraulic analysis and biological surveying services to its clients. The company has locations in San Diego, Phoenix and Agoura Hills, Calif.