Iowa's largest farmers cooperative might face a significant fine for a massive fertilizer spill in southwest Iowa that annihilated aquatic creatures in a 60-mile stretch of a river.

the result of a fertilizer spill at a southwest Iowa co-op into a branch of the Nishnabotna River. The spill left about 750,000 fish dead along a 60-mile stretch of river in the biggest fish kill ...

Iowa's largest farmers cooperative ... drain to a ditch that empties into the East Nishnabotna River. Fertilizer spills often kill fish when microbes consume the nutrients and deplete oxygen ...