4 description of the human environment, potential ... - Lee Altenberg

Final Environmental Impact Statement
Regional and local climate, together with the amount and type of human activity,
generally dictate the air quality of a given location. The climate in the vicinity of
, the area of the widening of Piÿilani Highway, the Wailea Ike Drive and Wailea
Alanui Drive intersection, and the areas of the off-site water and wastewater infrastructure
is very much affected by its the elevation near sea level and by nearby mountains.
Haleakalä shelters the area from the northeast trade winds, and local winds (such as
land/sea breezes and upslope/downslope winds) affect the wind flow in the area much of
the time. Temperatures in the area are generally very consistent and warm with average
daily temperatures ranging from about 63 F to 86 F.
Both Federal and State standards have been established to maintain ambient air quality. At
the present time, seven parameters are regulated: 1) particulate matter, 2) sulfur dioxide, 3)
hydrogen sulfide, 4) nitrogen dioxide, 5) carbon monoxide, 6) ozone and 7) lead. Hawaii
air quality standards are comparable to the national standards except those for nitrogen
dioxide and carbon monoxide, which are more stringent than the national standards.
POTENTIAL IMPACTS AND MITIGATION MEASURES
, the widening of Piÿilani Highway, the Wailea Ike Drive and
Wailea Alanui Drive intersection improvements, and the areas of the off-site water and
wastewater infrastructure may result in short- and long-term impacts on air quality, either
directly or indirectly, as a consequence of construction and occupancy use. However, it is
anticipated that no State or Federal air quality standards will be violated during or after the
construction. After build-out, air quality in the vicinity vicinities , the
widened Piÿilani Highway, the Wailea Alanui Drive intersection, and the off-site water and
wastewater infrastructure primarily will be affected by vehicular emissions associated with
additional traffic.
Short-term Impacts Short-term impacts from fugitive dust will likely occur during
construction. Construction will include earthmoving activity, excavating, trenching, and
filling. To a lesser extent, exhaust emissions from stationary and mobile construction
equipment, from disruption of traffic, and from workers vehicles may also affect air
quality during construction.
A dust Dust control plans will be
implemented during all construction phases. All construction activities, including
construction of the Wailea Ike Drive and Wailea Alanui Drive intersection improvements
and the off-site water and wastewater infrastructure will comply with the provisions of
Chapter 11-60.1-33, HAR on fugitive dust. Measures to control dust during construction
may include:
Planning phases of construction to minimize the amount of dust-generating
materials and activities, centralizing on-site vehicular traffic routes, and locating
potential dust-generating equipment in areas of least impact;
Watering active work areas and any temporary unpaved work roads daily;
CHAPTER 4 DESCRIPTION OF THE HUMAN ENVIRONMENT, POTENTIAL IMPACTS, AND MITIGATION MEASURES
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