I don’t change the water in my fish tank first because it can disrupt beneficial bacteria and stress the fish. Maintaining stable water parameters and focusing on proper filtration often leads to a ...

State Sen. Carlos Guillermo Smith vowed to consider a bill after a Times investigation showed pollution plagues hundreds of ...

Elevated nitrate levels in the Des Moines and Raccoon rivers prompted Central Iowa Water Works to start up its nitrate removal system this month. A network of water quality sensors shows a similar ...

In spring and summer 2025, the nitrate removal facility ran in part of fully for 112 days. “It has been quite a year,” Madsen ...