A. Designated: The city manager is appointed local flood plain administrator to administer and implement this title by granting or denying flood plain development permits in accordance with its provisions. (1973 Code § 18.04.010)
B. Duties And Responsibilities: Duties and responsibilities of the local flood plain administrator shall include, but not limited to the following:
1. Permit Application Review: The flood plain development permit will not be issued by the local flood plain administrator until the following has been accomplished:
a. Review all applications for completeness, particularly with the requirements of subsection 12-2-2B of this chapter, and for compliance with the provisions and standards of this title.
b. Review all subdivision and other proposed new development, including manufactured home and recreational parks to determine whether the proposed development site will be reasonably safe from flooding. When the proposed building site is located in the special flood hazard area, all new construction and substantial improvements will meet the applicable standards of section 12-4-1 of this title.
c. Determine whether any proposed development in the special flood hazard area may result in physical damage to any other property, to include stream bank erosion and any increase in velocities, or that it does not adversely affect the carrying capacity of the areas where base flood elevations have been determined but a floodway has not been designated. For purposes of this title, "adversely affects" means the cumulative effect of the proposed development when combined with all other existing and anticipated development will increase the water surface elevation of the base flood more than one foot (1') at any point. To assist the local flood plain administrator in making this determination, the permit applicant may be required to submit additional technical analyses.
d. Ensure all other required state and federal permits have been received.
2. Use Of Other Flood Data:
a. When the federal emergency management agency has designated special flood hazard areas on the community's flood insurance rate maps (FIRM) but has neither produced water surface elevation data nor identified a floodway, the local flood plain administrator shall attempt to obtain, review and reasonably utilize any base flood elevation and floodway data available from a federal, state or other source, including data developed pursuant to subsection 12-2-2B8 of this chapter, as criteria for requiring new construction, substantial improvements or other proposed development to meet the requirements of this title.
b. When base flood elevations are not available, the local flood plain administrator may use flood information from any other authoritative source, such as historical data, to establish flood elevations within the special flood hazard areas. This information shall be submitted to the city for adoption.
3. Alteration Of Watercourses:
a. Prior to issuing a permit for any alteration or relocation of a watercourse the local flood plain administrator must notify all adjacent communities, Nevada's national flood insurance program coordinator, Nevada division of water resources, and submit evidence of such notification to the federal insurance administration, and the federal emergency management agency.
b. Determine that the permit holder has provided for maintenance within the altered or relocated portion of said watercourse so that the flood-carrying capacity is not diminished.
4. Inspections: The local flood plain administrator or designee shall make periodic inspections throughout the period of construction in order to monitor compliance with the requirements of the flood plain development permit or any variance provisions.
5. Stop Work Orders: The local flood plain administrator shall issue, or cause to be issued, a stop work order for any flood plain development found noncompliant with the provisions of this title or conditions of the development permit, and all development found ongoing without a flood plain development permit. Disregard of a stop work order shall subject the violator to the penalties described in section 12-3-3 of this title.
6. Retaining Flood Plain Development Documentation: The local flood plain administrator shall obtain and retain for public inspection and have available for the national flood insurance program or the federal emergency management representative conducting a community assistance visit, the following:
a. Flood plain development permits and certificates of compliance;
b. Certification required by subsection 12-4-1C of this title, (lowest floor elevation);
c. Certification required by subsection 12-4-1E of this title (elevation or floodproofing of nonresidential structures);
d. Certification of elevation required by section 12-4-3 of this title (subdivision standards);
e. Certification required by section 12-4-7 of this chapter (floodway encroachments);
f. Reports required by section 12-4-8 of this chapter (mudflow standards);
g. Variances issued pursuant to chapter 5 of this title (variance procedures);
h. Notices required under subsection B3 of this section (alteration of watercourses).
7. Map Determinations: The local flood plain administrator will make map interpretations where needed, as to the exact location of the boundaries of the areas of special flood hazard and where there appears to be a conflict between a mapped boundary and actual field conditions.
8. Appeals: The city shall hear and decide appeals when it is alleged there is an error in any requirement, decision or determination made by the flood plain administrator in the enforcement or administration of this title.
9. Submission Of New Technical Data To FEMA: When the city or Lyon County base flood elevations either increase or decrease resulting from physical changes affecting flooding conditions, as soon as practicable, but not later than six (6) months after the date such information becomes available, the city or Lyon County will submit the technical or scientific data to FEMA. Such submissions are necessary so that upon confirmation of the physical changes affecting flooding conditions, risk premium rates and flood plain management requirements will be based upon current data. (1973 Code § 18.04.040)