An underground network of pipes, the infiltration gallery, serves as a source of drinking water. The gallery and the rivers ...

High nitrate levels bedevil water officials as well, leading to request to cut outdoor use by 50%.

INSIGHT monitors water quality, environmental factors impacting Iowans ...

Water usage remains close to levels before request to cut back 50% on outdoor use ...

Add Yahoo as a preferred source to see more of our stories on Google. Will MLB's ABS challenge signal evolve? Here's why head tap gesture can cause confusion among umps, players and scoreboard ...