Cocaine, DEET, other chemicals found in Minnesota lakes

Dan Gunderson, reporting for MPR:

A new study of Minnesota lakes finds more evidence that water across the state contains a wide range of chemicals.

The largest study of its kind ever done in Minnesota shows chemicals from household products, prescription drugs and illegal drugs are common in Minnesota lakes.
— http://www.pca.state.mn.us/index.php/water/water-monitoring-and-reporting/water-quality-and-pollutants/endocrine-disrupting-compounds.html

What we use in our homes, our gardens, and in our manufacturing and agricultural industries, ultimately ends up in our lakes and rivers. Are you surprised about these results?