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alterations or additions to existing structures in the floodplain. The Zoning Administrator must also maintain a record of the elevations to which structures and alterations or additions to structures are floodproofed. (1) Notification for watercourse alterations. Before authorizing any alteration or relocation of a river or stream, the Zoning Administrator must notify adjacent communities. If the applicant has applied for a permit to work in public waters pursuant to the Minnesota Statues, Section 103G.245, this will suffice as adequate notice. A copy of the notification must also be submitted to the Chicago Regional Office of the Federal Emergency Management Agency (FEMA). (g)Notification to FEMA when physical changes increase or decrease base flood elevations. As soon as practicable, but not later than six months after the date such supporting information becomes available, the Zoning Administrator must notify the Chicago Regional Office of FEMA of the changes by submitting a copy of the relevant technical or scientific data. (3) Variances. An application for a variance to the provisions of this chapter will be processed and reviewed in accordance with applicable state statutes and Chapter 1007, Zoning (a) Adherence to state flood plain management standards. A variance must not allow a use that is not allowed in that district, permit a lower degree of flood protection than the regulatory _ flood protection elevation for the particular area, or permit standards lower than those required by state law. (b) Additional variance criteria. The following additional variance criteria of the Federal Emergency Management Agency must be satisfied: 1. Variances must not be issued by a community within any designated regulatorX floodway if any increase in flood levels during the base flood discharge would result. 2. Variances may only be issued by a community Lapon (i) a showing of good and sufficient cause, (ii) a determination that failure to grant the variance would result in exceptional hardship to the applicant, and (iii) a determination that the granting of a variance will not result in increased flood heights, additional threats to public safetL extraordinary public expense, create nuisances, cause fraud on or victimization of the public, or conflict with existing local laws or ordinances. 3. Variances may only be issued upon a determination that the variance is the minimum necessary, considering the flood hazard, to afford relief. (c) Flood insurance notice. The Zoning Administrator must notify the applicant for a variance that: 1) The issuance of a variance to construct a structure below the base flood level will result in increased premium rates for flood insurance up to amounts as high as $25 for $100 of insurance coverage; and 2) Such construction below the base or regional flood level increases risks to life and property. Such notification must be maintained with a record of all variance actions. (d) Factors used in decision making. In passing upon conditional use applications, 33 of 39