Storm drains move stormwater directly to local streams and lakes. Only rain should go down the storm drain! See it, smell it, report it! Stormwater pollution is the number one source of pollution for streams, rivers and lakes. Seemingly small sources of pollution accumulate into large sources when they all wash away and come together into the storm drainage system and our local streams, rivers and lakes. Preventing pollution as part of daily living and work is one of the best ways to prevent small sources from adding up into big problems. Preventing pollution is also a lot less expensive than cleaning it up or trying to restore water quality after pollution is already there.