A.
The identified floodplain area shall be:
(1)
Any areas of Borough of Brentwood, classified as special flood hazard
areas (SFHAs) in the Flood Insurance Study (FIS) and the accompanying
Flood Insurance Rate Maps (FIRMs) dated September 26, 2014, and issued
by the Federal Emergency Management Agency (FEMA), or the most recent
revision thereof, including all digital data developed as part of
the Flood Insurance Study; and
(2)
Any community identified flood hazard areas.
B.
The above-referenced FIS and FIRMs, and any subsequent revisions
and amendments, are hereby adopted by Borough of Brentwood and declared
to be a part of this chapter.
The identified floodplain area shall consist of the following
specific areas:
A.
A Area/District.
(1)
The A Area/District shall be those areas identified as an A Zone
on the FIRM included in the FIS prepared by FEMA and for which no
base flood elevations have been provided. For these areas, elevation
and floodway information from other federal, state, or other acceptable
sources shall be used when available. Where other acceptable information
is not available, the base flood elevation shall be determined by
using the elevation of a point on the boundary of the identified floodplain
area which is nearest the construction site.
(2)
In lieu of the above, the municipality may require the applicant
to determine the elevation with hydrologic and hydraulic engineering
techniques. Hydrologic and hydraulic analyses shall be undertaken
only by professional engineers or others of demonstrated qualifications,
who shall certify that the technical methods used correctly reflect
currently accepted technical concepts. Studies, analyses, computations,
etc., shall be submitted in sufficient detail to allow a thorough
technical review by the municipality.
B.
Community identified flood hazard areas shall be those areas where
the Borough of Brentwood has identified local flood hazard or ponding
areas, as delineated and adopted on a local flood hazard map using
best available topographic data and locally derived information such
as flood of record, historic high water marks, soils or approximate
study methodologies.
The identified floodplain area may be revised or modified by the Council where studies or information provided by a qualified agency or person documents the need for such revision. However, prior to any such change to the special flood hazard area, approval must be obtained from FEMA. Additionally, as soon as practicable, but not later than six months after the date such information becomes available, a community shall notify FEMA of the changes to the special flood hazard area by submitting technical or scientific data. See § 113-22B for situations where FEMA notification is required.
Should a dispute concerning any identified floodplain boundary
arise, an initial determination shall be made by the Borough of Brentwood
and any party aggrieved by this decision or determination may appeal
to the Council. The burden of proof shall be on the appellant.
Prior to development occurring in areas where annexation or
other corporate boundary changes are proposed or have occurred, the
community shall review flood hazard data affecting the lands subject
to boundary changes. The community shall adopt and enforce floodplain
regulations in areas subject to annexation or corporate boundary changes
which meet or exceed those in CFR 44 60.3.
