Duties of the Floodplain Administrator shall include, but not be limited to:
(A) Permit Review.
(1) Review all development permits to determine that:
(a) The permit requirements of this ordinance have been satisfied;
(b) All other required state and federal permits have been obtained;
(c) The site is reasonably safe from flooding; and
(d) In areas where a floodway has not been designated, the proposed development does not adversely affect the carrying capacity of areas where Base Flood Elevations have been determined.
(2) For purposes of this chapter, ADVERSELY AFFECTS means that the cumulative effect of the proposed development when combined with all other existing and anticipated development will not increase the water surface elevation of the base flood more than one foot at any point.
(B) Substantial improvement and substantial damage assessments. Review all development permits for improvements and/or damages to existing structures to determine if the application of the substantial improvement rules apply, including establishing a definition of market value determination and verifying that the estimated improvement and/or repair costs are less than 50% of the market value of the structure.
(C) Use of other base flood data. When Base Flood Elevation Data has not been provided in accordance with § 154.016, the Floodplain Administrator shall obtain, review and reasonably utilize any Base Flood Elevation Data available from a Federal, state or other source, in order to administer §§ 154.050 through 154.055. Any such information shall be consistent with the requirements of the Federal Emergency Management Agency and the Director of the Arizona Department of Water Resources and may be submitted to the Floodplain Board for adoption.
(D) Information to be obtained and maintained. Obtain and maintain for public inspection in accordance with the town's records retention schedule and make available as needed.
(2) The certification required in § 154.050(C)(2);
(3) The flood proofing certification required in § 154.050(C)(3);
(4) The certified elevation required in § 154.053(A)(2);
(5) The Floodway Encroachment Certification required in § 154.055(A);
(6) Maintain a record of all variance actions, including justification for their issuance; and
(7) Obtain and maintain improvement and damage calculations required in § 154.035(B).
(E) Alteration of watercourses.
(1) Whenever a watercourse is to be altered or relocated:
(a) Notify adjacent communities and the Arizona Department of Water Resources prior to any alteration or relocation of a watercourse, and submit evidence of such notification to the Federal Emergency Management Agency through appropriate notification means; and
(b) Require that the flood carrying capacity of the altered or relocated portion of said watercourse is maintained.
(2) Base Flood Elevation and rate of flow due to physical altercations.
(a) Base Flood Elevations may increase or decrease resulting from physical changes affecting flooding conditions. As soon as practicable, but not later than six months after the date such information becomes available, the Floodplain Administrator shall notify the Federal Emergency Management Agency of the changes by submitting technical or scientific data in accordance with Volume 44 C.F.R. § 65.3. Such a submission is necessary so that upon confirmation of those physical changes affecting flooding conditions, risk premium rates and floodplain management requirements will be based upon current data.
(b) Within 120 days after completion of construction of any flood control protective works which changes the rate of flow during the base flood or the configuration of the floodplain upstream or downstream from or adjacent to the project, the person or agency responsible for installation for the project shall provide to the governing bodies of all jurisdictions affected by the project a new delineation of all floodplains affected by the project. The new delineation shall be done according to the criteria adopted by the Director of the Arizona Department of Water Recourses.
(3) Corporate Boundary Changes. Notify the Federal Emergency Management Agency of acquisition by means of annexation, incorporation or otherwise, of additional areas of jurisdiction.
(F) Interpretation of FIRM boundaries. Make interpretations where needed, as to the exact location of the boundaries of the special flood hazard areas (for example, where there appears to be a conflict between a mapped boundary and actual field conditions). The person contesting the location of the boundary shall be given a reasonable opportunity to appeal the interpretation as provided in § 154.070(B).
(Ord. 02-2019, passed 3-14-2019)