Don't give up. The COE authority over small isolated waters is not what they like to tell people. The US Sup Court has told them that recently - twice. Also recently the US Sup Court in a unanimous decision corrected them (COE/EPA) on their power to enter cease and desist orders which are not appealed. On March 21, a unanimous Supreme Court ruled that courts can review EPA administrative orders under the Clean Water Act before EPA seeks to enforce them - the case is Sackett v. EPA . Two more Clean water act cases are up for hearing on appeal to the US Sup Court next term.