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Ms.-Allen August 31, 2005 PA-0500543 (SA) Page 4 preferential parking spaces for employees who participate in carpooling or vanpooling, incorporating a compressed workweek schedule, guaranteed ride home, carpool matching programs, shower/changing facilities, providing free transit passes, providing an alternative-transit information center, and having a dedicated employee transportation coordinator. Check out the "Spare the Air" section of our website www.vallevair.org • The applicant should implement measures to reduce the amount of vehicle traffic to and from the residential area(s) that further reduce air pollution in the valley. This could include providing an information center for residents to coordinate carpooling. Check out the "Spare the Air" section of our website www.vallevair.oM • 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 /dleAire. See hftp://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. - 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 CARIB 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 at CARB's website-http://www.arb.ca.gov/fuels/diesel/altdiesel/altdiesel.htm and the EPA's website hftp://www.epa.gov/oms/models/biodsl.htm - Light Duty Cars and Trucks should be alternative fueled or hybrids. 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, d Jessica R. Willis Air Quality Specialist Central Region c:file