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grading of 1,309,000 square feet of area. Assuming grading o~ <br />the entire project site, approximately 108,900 square feet of <br />area would be graded. The proposed grading would be considerably <br />less than the threshold of significance established by the CEQA <br />Air Quality Handbook. Additionally, the project would be subject <br />South Coast Air Quality Management District Fugitive Dust Rule <br />403 to minimize fugitive dust impacts. <br /> <br />To insure the project complies with Fugitive Dust Rule 403, the <br />following mitigation measures shall be implemented. <br /> <br />Mitigation Measure <br /> <br />Grading plans for the proposed project shall reflect the <br />following notes: <br /> <br />Ail material excavated or graded will be sufficiently watered <br />to prevent excessive amounts of dust. Watering with complete <br />coverage shall occur at least twice daily, once in the late <br />morning and once after work is done for the day. <br /> <br />Ail clearing and earthwork activities shall cease during <br />period of high winds (winds greater than 25 mph averaged over <br />one hour) or during Stage 1 or Stage 2 smog episodes. <br /> <br />· Streets surrounding the project site should be cleaned at the <br />'end of each day of construction. <br /> <br />Ail material transported offsite shall either be sufficiently <br />watered or securely covered to prevent excessive amounts of <br />dust. : . <br /> <br />· The amount of area disturbed by clearing and earthwork <br /> activities shall be minimized at all times. <br /> <br />· Equipment engines shall be maintained in good condition and <br /> in proper tune according to manufacturer's specifications. <br /> <br />· To the extent feasible, gasoline powered equipment shall be <br /> used for onsite and. offsite construction activities. <br /> <br />Result in a cumulatively considerable net increase of any <br />criteria pollutant for which the project region is non- <br />attainment under an applicable federal or state ambient air <br />quality standard? <br /> <br /> <br />