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Duties of the floodplain manager shall include, but not be limited to:

A. Permit Review.

1. Review all permit applications to determine that the special flood hazard area development permit requirements of this chapter have been satisfied.

2. Review all special flood hazard area development permit applications to determine that all necessary permits have been obtained from those governmental agencies from which approval is required by federal or state law, including Section 404 of the Federal Water Pollution Control Act Amendments of 1972, 33 U.S.C. 1334.

3. Review all special flood hazard area development permits to determine if the proposed development is located in the floodway. If located in the floodway, assure that the encroachment provisions of MMC 14.01.150 are met.

4. Review all permit applications to determine whether proposed building sites will be reasonably safe from flooding. If a proposed building site is in an area of special flood hazard, all new construction and substantial improvements shall (a) be designed (or modified) and adequately anchored to prevent flotation, collapse, or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy, (b) be constructed with materials resistant to flood damage, (c) be constructed by methods and practices that minimize flood damages, and (d) be constructed with electrical, heating, ventilation, plumbing, and air conditioning equipment and other service facilities that are designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding.

5. Review subdivision proposals and other new development, including manufactured home parks or subdivisions, to determine whether such proposals will be reasonably safe from flooding. If a subdivision proposal or other proposed new development is in an area of special flood hazard, any such proposals shall be reviewed to assure that (a) all such proposals are consistent with the need to minimize flood damage within the area of special flood hazard, (b) all public utilities and facilities, such as sewer, gas, electrical, and water systems, are located and constructed to minimize or eliminate flood damage, and (c) adequate drainage is provided to reduce exposure to flood hazards.

B. Use of Other Base Flood Data. When base flood elevation data has not been provided in accordance with MMC 14.01.050, Basis for establishing the areas of special flood hazard, the floodplain manager obtains, reviews, and reasonably utilizes any base flood elevation and floodway data available from a federal, state or other source, in order to administer MMC 14.01.130, 14.01.140 and 14.01.150.

C. Information To Be Obtained and Maintained.

1. Where base flood elevation data is provided through the Flood Insurance Study or required as in subsection (B) of this section, obtain and record the actual elevation (in relation to North American Vertical Datum of 1929 mean sea level) of the lowest floor (including basement) of all new or substantially improved structures, and whether or not the structure contains a basement.

2. For all new or substantially improved floodproofed structures:

a. Verify and record the actual elevation in relation to North American Vertical Datum of 1929 mean sea level to which the structure was floodproofed; and

b. Maintain the floodproofing certifications required in MMC 14.01.100.

3. Maintain for public inspection all records pertaining to the provisions of this chapter.

D. Alteration of Watercourses.

1. The floodplain manager shall notify adjacent communities and the Department of Ecology prior to any alteration or relocation of a watercourse, and submit evidence of such notification to the Federal Insurance Administration.

2. Assure that the flood carrying capacity within the altered or relocated portion of any watercourse is maintained.

E. Interpretation of FIRM Boundaries. The floodplain manager shall make interpretations where needed, as to exact location of the boundaries of the areas of special flood hazards (for example, where there appears to be a conflict between a mapped boundary and actual field conditions). Any person contesting the location of the boundary shall be given a reasonable opportunity to appeal the interpretation as provided in MMC 14.01.170. (Ord. 033/2018 § 9; Ord. 004/2006 § 2; Ord. 021/2005 § 1)