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shall be placed over any water spring, mazsh, refuse dump, nor upon a soggy or springy
<br />foundation, provided that this requirement may be waived by the director of public works
<br />if the permittee submits an engineer's soils report substantiating data regarding the safety
<br />of the fill. Hazazdous materials shall not be stockpiled.
<br />Section 10-22. Vegetation.
<br />Whenever feasible, natural vegetation should be retained by becoming part of the erosion
<br />control plan during construction or part of the permanent landscaping plan if applicable. If
<br />removed, trees, timber, .plants, shrubbery, and other vegetation, after being uprooted, displaced,
<br />or dislodged from the ground by excavation, clearing, or grubbing, shall not be stored or
<br />deposited along the banks of any stream, river, or natural water course. After being uprooted,
<br />displaced or dislodged, such vegetation shall be disposed of and removed from the site.
<br />Exceptions providing for burial in open areas may be allowed as determined by the director of
<br />public works.
<br />Section 10-23. Debris prohibited.
<br />No person shall perform any grading operation so as to cause falling rocks, soil or debris
<br />in any form to fall, slide, or flow onto adjoining properties, streets or natural watercourses.
<br />Sectiou 10-24. Dust control,
<br />All work areas within and beyond the actual grading azea shall be maintained free from
<br />fugitive dust which will cause a nuisance or hazazd to others and in conformance with the air
<br />pollution control standards contained in Hawaii Administrative Rules, chapter 11-60, "Air
<br />Pollution Control," as may be amended.
<br />Section 10-25. Noise control.
<br />All grading, grubbing and stockpiling operations authorized under this chapter shall be
<br />performed in conformance with the applicable provisions of the noise rules contained in Hawaii
<br />Administrative Rules, chapter 11-46, "Community Noise Control," as may be amended.
<br />Section 10-26. Water quality standards.
<br />All grading, grubbing and stockpiling operations authorized under this chapter shall be
<br />performed in conformance with the applicable provisions of the water pollution control and
<br />water quality standards contained in Hawaii Administrative Rules, chapter 11-55, "Water
<br />Pollution Control," as may be amended, and chapter 11-54, "Water Quality Standazds," as may
<br />be amended.
<br />Section 10-27. Special conditions and requirements.
<br />(a) Any person performing or causing to be performed an excavation or fill shall, at that
<br />person's own expense, provide the necessary means to preverit the movement of earth of
<br />the adjoining properties, to protect the improvements thereon, and to maintain the
<br />existing natural grade of adjoining properties.
<br />(b) Any person performing or causing to be performed, any excavation or fill shall be
<br />- responsible for the maintenance or restoration of street pavements, sidewalks, curbs, and
<br />improvements of public utilities which may be affected. The maintenance or restoration
<br />of street pavements, sidewalks and curbs shall be performed in accordance with the
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