New permanent storage and mixing sites as defined in rule 44.1(206) shall be selected in accordance with requirements of the Iowa department of natural resources. The new site, if located in a flood plain, shall be protected from inundation from floods. New permanent pesticide storage and mixing sites shall be located a minimum of 400 feet from public water supply wells or below ground level finished water storage facilities and a minimum of 150 feet from private water supply wells.
Iowa Admin. Code r. 21-44.5