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Ms.Allen �" .... December 5,2005 PA-0500725(UP) Page 3 - Utilize daylighting (natural lighting) systems such as skylights, light shelves, interior transom windows etc. See http://www.advancedbuildings.org - Electrical outlets around the exterior of the unit(s)to encourage use of electric landscape maintenance equipment - Exits to adjoining streets should be designed to reduce time to re-enter traffic from the project site • Construction activity mitigation measures include: - Install sandbags or other erosion control measures to prevent silt runoff to public roadways from sites with a slope greater than one percent - Limit area subject to excavation, grading, and other construction activity at any one time - Limit the hours of operation of heavy duty equipment and/or the amount of equipment in use - Replace fossil-fueled equipment with electrically driven equivalents (provided they are not run via a portable generator set) - Require that all diesel engines be shut off when not in use on the premises to reduce emissions from idling. The applicant should install equipment that provides amenities that would otherwise be powered by idling engines. An example of such technology includes IdleAire. See http://www.idleaire.com/. - Curtail construction during periods of high ambient pollutant concentrations; this may include ceasing of construction activity during the peak-hour of vehicular traffic on adjacent roadways, and "Spare the Air Days"declared by the District. - Implement activity management(e.g. rescheduling activities to reduce short-term impacts) - During the smog season (May through October), lengthen the construction period to minimize the number of vehicles and equipment operating at the same time. - Off road trucks should be equipped with on-road engines when possible. - Minimize obstruction of traffic on adjacent roadways. - Light Duty Cars and Trucks should be alternative fueled or hybrids. • Diesel equipment should use verified alternative diesel fuel blends or Ultra Low Sulfur Diesel (ULSD). The California Air Resources Board (CARB) has verified specific alternative diesel fuel blends for NOx and PM emission reduction. Only fuels that have been certified by CARB should be used. For more information on alternative diesel blends, please call Mr. Chris Acree, Senior Air Quality Specialist, at (559) 230-5829. Information on biodiesel can also be found on CARB's website at http://www.arb.ca.,qov/fuels/diesel/altdiesel/altdiesel.htm and the EPA's website at http://www.ei)a.gov/oms/models/biodsl.htm. • Construction equipment should have engines that meet the current off-road engine emission standard (as certified by the CARB), or be re-powered with an engine that meets this standard. Tier I and Tier II engines have significantly less NOx and PM emissions compared to uncontrolled engines. To find engines certified by the CARB, see http://www.arb.ca.gov/rnsprog/offroad/cert/cert.php. This site lists engines by type, then manufacturer. The "Executive Order" shows what Tier the engine is certified as. For more information on heavy-duty engines, please contact Mr. Kevin McCaffrey, Air Quality Specialist, at (559) 230-5831. District staff is available to meet with you and/or the applicant to further discuss the regulatory requirements that are associated with this project. If you have any questions or require further information, please call me at (559) 230-5800 or Mr. Hector R. Guerra, Senior Air Quality Planner, at (559) 230-5820 and provide the reference number at the top of this letter. Sincerely, �WG�J Jessica R=11is Air Quality Specialist Central Region c:file