Yes, there is a risk of ...

Yes, there is a risk of polluting Groundwater Sources.  About 50,000 acres of Iowa row crop farmland was illegally channeled through my Section 11, Cedar (W) Township, Mitchell County, Iowa, USA farm to outlet down a group of sinkholes in an Aquifer Recharge Area in a Designated National Wetland.  The Flood waters contained high levels of CAFO and Anhydrous Ammonia Nitrogen fertilizers, Atrazine (other herbicides), pesticides, and the high levels of Ammonia Nitrogen as N drew Arsenic from the bedrock and Lead from our well pipes and delivery lines.  The Ammonia levels also combined with the Chlorine the Iowa DNR told us to use to disinfect our water for the CAFO bacteria, causing Trihalomethanes or other decontaminants.  Causing high animal loss numbers and numerous cancers in the families drinking the contaminated wells Downstream in parts of Floyd, Butler, Bremer, and Blackhawk Counties.