CHAPTER 9. BUILDINGS.*
Sec. 9-54.3. Duties and responsibilities of the floodplain administrator.
The duties and responsibilities of the floodplain
administrator shall include, but not be limited to:
(a) Permit Review.
(1) Review all development permits to determine that the
permit requirements of this article have been satisfied and that all other
required state and federal permits have been obtained;
(2) Insure that the site is reasonably safe from
flooding;
(3) Insure the proposed development does not adversely affect
the carrying capacity of areas where base flood elevations have been determined
but a floodway has not been designated. For purposes of this article, "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) Use of Other Base Flood Data.
(1) When base flood elevation data has not been provided in
accordance with Section 9-53.2, the floodplain administrator shall obtain,
review, and reasonably utilize any base flood elevation and floodway data
available from a federal or state agency, or other source, in order to
administer Section 9-55.1. Any such information shall be submitted to the city
for adoption; or
(2) If no base flood elevation data is available from a
federal or state agency or other source, then a base flood elevation shall be
obtained using one of two methods from the FEMA publication "Managing Floodplain
Development in Approximate Zone A Areas -- A Guide for Obtaining and Developing
Base (100- year) Flood Elevations" dated July 1995 in order to administer
Section 9-55.1:
(A) Simplified Method.
(i) 100-year or base flood discharge shall be obtained using
the appropriate regression equation found in a U.S. Geological Survey
publication, or the discharge-drainage area method, and
(ii) Base flood elevation shall be obtained using the Quick-2
computer program developed by FEMA, or
(B) Detailed Method.
(i) 100-year or base flood discharge shall be obtained using
the U.S. Army Corps of Engineers' HEC-HMS computer program, and
(ii) Base flood elevation shall be obtained using the U.S.
Army Corps of Engineers' HEC-RAS computer program.
(c) Notification of Other Agencies. Whenever a watercourse is
to be altered or relocated:
(1) Notify adjacent communities and the California Department
of Water Resources prior to alteration or relocation;
(2) Submit evidence of such notification to the Federal
Insurance Administration, Federal Emergency Management Agency; and
(3) Require that the flood carrying capacity within the
altered or relocated portion of such watercourse is maintained.
(d) Documentation of Floodplain Development. Obtain and
maintain for public inspection and make available as needed:
(1) Certification required by Section 9-55.1(c)(1) and
9-55.4(b) (lowest floor elevations);
(2) Certification required by Section 9-55.1(c)(2) (elevation
or floodproofing of nonresidential structures);
(3) Certification required by Section 9-55.1(c)(3) (wet
floodproofing standard);
(4) Certification of elevation required by Section 9-55.3(b)
(subdivision standards);
(5) Certification required by Section 9-55.5(a) (floodway
encroachments).
(e) Map Determinations: Make interpretations where needed, as
to the exact location of the boundaries of the areas of special flood hazard.
Where there appears to be a conflict between a mapped boundary and actual field
conditions, grade and base flood elevations shall be used to determine the
boundaries of the special flood hazard area. The person contesting the location
of the boundary shall be given a reasonable opportunity to appeal the
interpretation as provided in Section 9-56.1 et seq.
(f) Remedial Action. Take action to remedy violations of this
article as specified in Section 9-53.3. (Ord. No. 1835 (NCS), § 1; Ord. No.
2037, § 7; Ord. No. 2383 (NCS), § 1.)