One Third of Iowa Watersheds Make U-S-G-S Top 150 Polluting List
One Third of Iowa Watersheds Make U-S-G-S Top 150 Polluting List By David Law/Dick LaymanApril 6, 2009; Public News Service, Iowahttp://www.publicnewsservice.org/index.php?/content/article/8511-1 Des Moines, IA – The U.S. Geological Survey has released a new list identifying 42 Iowa watersheds among the top 150 that are polluting the Mississippi River Basin and contributing to an 8,000 square [...]