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<br />Impact m~l: PM10 emissions from construction-related activities <br /> <br />Mitigation Measure 111-1: Thefollowing measures to reduce construction related PMlO <br />emissions reflect basic and optional dust control measures recommended by BAAQMD: <br /> <br />. All active construction areas shall be watered at least twice daily; <br />. All trucks hauling soil, sand, and other loose materials shall be covered with tarpaulins or <br />other effective covers; <br />. All unpaved access roads, parking areas, and staging areas at the construction site shall be <br />paved; otherwise, water or non-toxic soil stabilizers shall be applied to all unpaved access <br />roads. In addition, paved access roads, parking areas, and staging areas shall be swept <br />daily with a water sweeper. Streets shall be swept daily with a water sweeper in areas <br />where visible soil material is carried onto adjacent public streets; <br />. Hydroseed or apply non-toxic soil stabilizers to inactive construction areas (previously <br />graded area inactive for ten days or more); <br />. Enclose, cover, water twice daily or apply non-toxic soil binders to exposed stockpiles (dirt, <br />sand, etc.); <br />. Limit traffic speeds on unpaved roads to 15 miles per hour; <br />. Install sandbags or other erosion control measures to prevent silt runoff to public roadways; <br />. Replant vegetation in disturbed areas as quickly aspossible; <br />. As an option, the applicant may install and use wheel washers to clean all trucks and <br />equipment leaving the construction site. If wheel washers cannot be installed, the applicant <br />may wash tires or tracks of all trucks and equipment before leaving the construction site; <br />. As an option, the applicant may install windbreaks on windward sides of construction areas; <br />. As an option, the applicant may terminate excavation and grading activities when winds <br />exceed 25 mph; <br />. As an option, the applicant may limit the area subject to excavation, grading, and other <br />construction activities at anyone time. <br /> <br />Implementation of the mitigation measure above would reduce impacts of construction.related PMlO <br />emissions to a less.than-significant level. <br /> <br />Y4204IS.00693.doc - 4/5/07 <br /> <br />-12- <br />