Handout - Orlando International Airport

East Airfield Development Area
Draft Environmental Assessment
East Airfield Development Area
Draft Environmental Assessment
ON-SITE ALTERNATIVES
ENVIRONMENTAL IMPACT
DETERMINATION – SUMMARY TABLE
Category
Significance Threshold
Significant
Impact
No
Significant
Impact with
Mitigation
No
Significant
Impact
Project exceeds one or more of the National Ambient Air Quality
Air Quality
X
Standards (NAAQS)
Biotic Resources Action effect on population dynamics X
Action effects on sustainability and reproduction rates
X
Compatible Land Use
Section 4(f) Resources
Federally-listed Endangered
or Threatened Species
Natural and artificial mortality
The minimum population size needed to maintain the affected
populations
Same threshold as noise –
A DNL 1.5 dB increase at a noise sensitive use within the DNL 65 dB
Project constitutes a “use” or “constructive use” of potential Section
4(f) properties
USFWS or NMFS determines that the action would likely jeopardize
the continued existence of a federally-listed species under the ESA
Destruction or adverse modification of designated critical habitat under
the ESA
Energy Supply, Natural
Resources, and Sustainable Project energy demands exceed available supply.
X
Design
Floodplains
Notable adverse impacts on natural and beneficial floodplain values
X
would occur
Hazardous Materials Action involves a property on or eligible for the National Priority List X
The sponsor would have difficulty meeting applicable local, state, or
X
Federal laws and regulations hazardous materials.
There is an unresolved issue regarding hazardous materials X
Historic and Archeological Action adversely affects a protected property under NHPA X
1
SHPO or THPO findings of adverse affects on protected property.
X
Noise A DNL 1.5 dB increase at a noise sensitive area within the DNL 65 dB X
Social Impacts
The action would cause extensive relocation, but sufficient
X
replacement housing in unavailable
The action would cause extensive relocation of community businesses
X
that would cause severe economic hardship for affected communities.
2
Substantial reduction in Level of Service for roads serving the airport
X
area.
Substantial loss in community tax base.
X
Water Quality Action would not meet water quality standards. X
3
Wetlands
Adversely affect a wetland’s function to protect the quality or quantity
of a municipal water supply, including sole source aquifers and a
X
potable water aquifer.
Substantially alter the hydrology needed to sustain the affected
wetland’s values and functions or those of a wetland to which it is
X
connected.
Substantially reduce the affected wetlands’ ability to retain floodwaters
or storm runoff, thereby threatening public health, safety or welfare.
4
X
The last term includes cultural, recreational, and scientific public
resources or property.
Adversely affect the maintenance of natural systems supporting
wildlife and fish habitat or economically-important timber, food, or fiber
X
resources of the affected or surrounding wetlands.
Promote development that causes any of the above impacts.
X
X
X
X
X
X
X
5
Be inconsistent with applicable State wetland strategies.
X
Cumulative Impacts Cumulative effect of the Proposed Action will exceed the significance X
Source of Significance Thresholds: FAA Order 5050.4B
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