Abstract : The Clean Water Act of 1977 and Army Regulation 200-1 require Army installations to control the quality of their point-source wastewater effluents. Point-source discharges are controlled by National Pollutant Discharge Elimination System (NPDES) permits; each wastewater point discharging into a navigable waterway is regulated either by a Federal or State NPDES permit. The Department of the Army has been issued hundreds of NPDES permits. The report describes a pilot NPDES Permit Management System developed by the U.S. Army Construction Engineering Research Laboratory (CERL). This program allows the Army to retrieve from a central data base a permanent, continually updated inventory of the Army's wastewater effluent discharge self-monitoring information and associated NPDES permit data. This system also lets the Army aggregate, manipulate, and analyze the data base information. This report gives a brief background of the pilot system's development, suggests how the system can be used to help manage the Army's pollution abatement program, and gives detailed user instructions. (Author)