Tracking underground pollution

Comment: Good article with graphics on Minneapolis groundwater and aquifer. Be sure to view cross section of the Prairie du Chien aquifer!

Star Tribune: water sources

Excerpt:

In a three-part series that ended Tuesday, the Star Tribune reported that 20 significant areas of groundwater contamination lie beneath 35 metro communities. The combined polluted zones are 2½ times the area of Minneapolis. Much of the pollution is in suburbs where chemicals from old dumps seeped into groundwater.

Only the most populated areas around the Twin Cities have the detailed geological information helpful to regulators tracking pollution in groundwater.