If stormwater only affects streams and creeks, why should I care?

Streams and creeks feed into rivers, lakes, and the ocean.  We all drink water, so we are all affected when our water is polluted.  The cost to treat polluted water rises and the price of drinking water increases.  If you like to swim, fish, or go boating, you may have been affected by advisories warning against the use of the water for recreational purposes.