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One Broadway Plaza <br />Environmental Impac <br />Findings and Facts in Support ofFindings <br />road hauling. This measure is already included in the particulate emission projections in <br />the report. Haul trucks leaving the site shall also have a minimum freeboard distance of <br />12", or cover payloads. <br />AQ-4 Sweep streets if silt is carried over to adjacent public thoroughfares. <br />AQ-5 Reduce traffic speeds on all unpaved road surfaces to 15 miles per hour or less. <br />AQ-6 Suspend grading operations during first and second stage smog alerts. <br />AQ-7 Suspend all grading operations when wind speeds (as instantaneous gusts) exceed 25 <br />miles per hour. <br />AQ-8 Maintain construction equipment engines by keeping them tuned. <br />AQ-9 Where feasible use low sulfur fuel for stationary construction equipment. <br />AQ-10 Where feasible utilize existing power sources (e.g., power poles) or clean fuel <br />generators rather than temporary power generators. <br />AQ-11 Provide on -site power sources during the early stages of the project. <br />AQ-12 Where feasible, use low emission on -site stationary equipment (e.g. clean fuels). <br />AQ-13 Spread soil binders on site, unpaved roads and parking areas. <br />AQ-14 Apply chemical soil stabilizers according to manufacturer's specifications to all inactive <br />construction areas (previously graded areas which remain inactive for 96 hours). <br />AQ-15 Reestablish groundcovers on construction site through seeding and watering of the site <br />that will not be disturbed for lengthy periods (such as two months or more). <br />4.1.1.4 Level of Significance of Impacts Related to Construction NO, and PMIo Emissions <br />The short term adverse impacts of the One Broadway Plaza project related to NO, and PM]o <br />emissions during construction cannot be mitigated to below a level of significance. <br />4.1.2 Impacts Related to Long Term Air Quality Impacts <br />4.1.2.1 Potentially Significant Adverse Impact Related to Long Term NO, Emissions <br />As described in detail in Section 3.4 (Air Quality) in the EIR, the One Broadway Plaza project <br />will result in adverse air quality impacts related to NO, emissions during long term operations. <br />4.1.2.2 Finding Related to Long Term NO, Emissions <br />U1vfregoso/wp51/reports/One Broadway final findings Page 10 <br />June 28, 2004 <br />