When Department Approval is Required Per Chapter 71
Approval by the department for construction, operation, and maintenance of waste or water treatment facilities shall be required in the following instances:

71.5(1) Rural areas. In rural areas, any such facilities on the flood plains or floodway of any river or stream draining more than 10 square miles.

71.5(2) Urban areas. In urban areas, any such facilities on the flood plain or floodway of any river or stream draining more than 2 square miles.

Application Forms, Checklists & Guidance:

Application Form(s)	*.pdf
Joint Application Form
Application Guidance	*.pdf
N/A
Application Checklist(s)	*.pdf
Flood Plain / Environmental Clearance Requests for Wastewater and Water Supply Treatment Facilities
Project Information Checklist for Waste Water Treatment Facilities that have Already Completed the Flood Plain / Environmental Clearance Evaluation
Project Information Checklist for Water Supply Facilities that have Already Completed the Flood Plain / Environmental Clearance Evaluation

Aerial photographs can be obtained online at: http://ortho.gis.iastate.edu/search.html.