Sigma Science Inc. of Los Alamos, N.M., has been awarded a $4 million indefinite delivery/indefinite quantity contract with a five-year ordering period to provide technical support services to the Department of Energy’s Office of Environmental Management Los Alamos Field Office, DOE announced yesterday. Sigma, a certified small business, may receive firm-fixed-price and time-and-material task orders under the contract. Specifically, the company will help in developing and executing a nuclear facility documented safety analysis for EM operations facilities at the Los Alamos National Laboratory.