To amend the Fderal Water Pollution Control Act to increase efforts to prevent and reduce contamination of navigable waters by methyl tertiary butyl ether, tetrachloroethylene, and trichloroethylene, and for other purposes.

Amends the Federal Water Pollution Control Act to authorize the Administrator of the Environmental Protection Agency to engage in research and studies on the removal of methyl tertiary butyl ether from waters.

Extends the authorization of appropriations to carry out water pollution prevention and control investigations, training, and information activities through FY 2004.

Adds to the list of State programs that may receive priority for water quality management grants those that control problems resulting from storage tank petroleum releases and problems involving the presence of dry cleaning solvents in groundwater or surface water.

Extends through FY 2004 the authorization of appropriations for grants for water quality protection programs and groundwater quality protection. Increases the maximum amount available for groundwater quality protection grants.