... Department, for information on rainwa-ter harvesting and A/C condensate recovery, and James Kohl, URS Corp., for initial research. Roy Sieber of ERG and Otto Van Geet, P.E., Nancy Carlisle, A.I.A, and ... agencies and organizations—such as the DOE Federal Energy Management Program, the EPA, and the American Water Works Association—have published guidelines and recommendations on water efficiency for ... Association (AWWA). 1993. Helping Businesses Manage Water Use: A Guide for Water Utilities. Denver, CO: AWWA. Electric Power Research Institute (EPRI) and California Energy Commission (CEC)....