The Great Waters of the United States

About 117 million people, or more than one third of the total U.S. population, gets some or all of their drinking water from public water systems that rely in some part on intermittent, ephemeral or headwater streams. This is water pumped through underground pipes from large wells, lakes, rivers, or reservoirs. This water not only is used in our homes but supports our fish and wildlife as well. Keeping this water clean is essential to our nation’s economy and survival.
Read more at the Johns Hopkins Science Policy Group