Water Pollution Program Improvement Act of 2000

[AI summary unavailable — showing source text] Water Pollution Program Improvement Act of 2000 - Requires the Administrator of the Environmental Protection Agency to make arrangements with the National Academy of Sciences (NAS) to conduct a study on the: (1) scientific basis underlying the development and implementation of total maximum daily loads for pollutants in waters for which effluent limitations under the Federal Water Pollution Control Act are not stringent enough to implement applicable water quality standards; (2) costs of implementing measures to comply with such loads; and (3) availability of alternative programs or mechanisms to reduce the discharge of pollutants from point sources and nonpoint source pollution to achieve water quality standards. Requires the NAS to report on the study to the Administrator and specified congressional committees. Provides for Federal, State, and private sector comments on such report. Authorizes appropriations. Requires the Administrator, before making a final determination with respect to the Proposed Revisions to the National Pollutant Discharge Elimination System Program and Federal Antidegradation Policy and the Proposed Revisions to the Water Quality Planning and Management Re…