Urban Runoff

The Environmental Protection Agency is conducting a test on three different types of porous pavement to devise ways to control runoff from parking lots and streets.

After a recent state ruling requiring Seattle and other Puget Sound cities to control polluted stormwater runoff, smaller cities and suburbs could be brought on board as well.

The Environmental Protection Agency has not done enough to control pollution from stormwater runoff in urban areas, according to a report from the National Academy of Sciences.