The degree of progress achieved under the 1972 Clean Water Act is revi
ewed by reference to traditional measures of program implementation, a
nd to evidence of tangible, or ''real-world'' progress, such as beach
closures, drinking water contamination, fishing bans and advisories, s
pecies health, and habitat degradation. Significant progress has been
made in reducing pollution from point sources, but large point source
releases of toxic and other pollutants remain. Little progress has bee
n made in addressing runoff pollution, and in protecting aquatic habit
ats. Clean Water Act reauthorization should focus on pollution prevent
ion to reduce further the release of toxics by point sources, a new pr
ogram of mandatory but flexible controls on sources of runoff, and wat
ershed protection programs to promote habitat protection and restorati
on. Economic factors should be considered in Clean Water Act programs,
but must be balanced against scientific and governmental factors as w
ell.