481A.15  Destruction or alteration of dam.
  It is unlawful for any owner or the owner’s agent to remove or destroy any existing dam, or alter it in a way so as to lower the water level, without having received written approval from the environmental protection commission of the department.
[C24, 27, 31, 35, 39, §1742; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §109.15; 82 Acts, ch 1199, §54, 96]
86 Acts, ch 1245, §1853
C93, §481A.15