Within ninety days following the convening of each session of Congress, the Administrator shall submit to the Congress a report, in addition to any other report required by this chapter, on measures taken toward implementing the objective of this chapter, including, but not limited to, (1) the progress and problems associated with developing comprehensive plans under section 1252 of this title, areawide plans under section 1288 of this title, basin plans under section 1289 of this title, and plans under section 1313(e) of this title; (2) a summary of actions taken and results achieved in the field of water pollution control research, experiments, studies, and related matters by the Administrator and other Federal agencies and by other persons and agencies under Federal grants or contracts; (3) the progress and problems associated with the development of effluent limitations and recommended control techniques; (4) the status of State programs,including a detailed summary of the progress obtained as compared to that planned under State program plans for development and enforcement of water quality requirements; (5) the identification and status of enforcement actions pending or completed under this chapter during the preceding year; (6) the status of State, interstate, and local pollution control programs established pursuant to, and assisted by, this chapter; (7) a summary of the results of the survey required to be taken under section 1290 of this title; (8) his activities including recommendations under sections 1259 through 1261 of this title; and (9) all reports and recommendations made by the Water Pollution Control Advisory Board.

The Administrator shall submit to the Congress by October 1, 1978, a report on the status of combined sewer overflows in municipal treatment works operations. The report shall include (1) the status of any projects funded under this chapter to address combined sewer overflows (2) a listing by State of combined sewer overflow needs identified in the 1977 State priority listings, (3) an estimate for each applicable municipality of the number of years necessary, assuming an annual authorization and appropriation for the construction grants program of $5,000,000,000, to correct combined sewer overflow problems, (4) an analysis using representative municipalities faced with major combined sewer overflow needs, of the annual discharges of pollutants from overflows in comparison to treated effluent discharges, (5) an analysis of the technological alternatives available to municipalities to correct major combined sewer overflow problems, and (6) any recommendations of the Administrator for legislation to address the problem of combined sewer overflows, including whether a separate authorization and grant program should be established by the Congress to address combined sewer overflows.

The Administrator, in cooperation with the States, including water pollution control agencies, and other water pollution control planning agencies, and water supply and water resources agencies of the States and the United States shall submit to Congress, within two years of December 27, 1977, a report with recommendations for legislation on a program to require coordination between water supply and wastewater control plans as a condition to grants for construction of treatment works under this chapter. No such report shall be submitted except after opportunity for public hearings on such proposed report.