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Rick Griffin September 14, 2006' <br /> 4, 2006F <br /> PA-0600465(UP) Page 4 <br /> • Construction equipment may be powered by diesel engines fueled by alternative diesel fuel blends or <br /> Ultra Low Sulfur Diesel (ULSD). The California Air Resources Board (CARE) has verified specific <br /> alternative diesel fuel blends for NOx and PM emission reduction. Only fuels that have been certified <br /> by CARB should be used. Information on biodiesel can be found on CARB's website at <br /> http://www.arb.ca.gov/fuels/diesel/altdiesel/altdiesel.htm and the EPA's website at <br /> http://www.epa.qov/oms/models/biodsl.htm. The applicant should also use CARB certified alternative <br /> fueled engines in construction equipment where practicable. Alternative fueled equipment may be <br /> powered by Compressed Natural Gas (CNG), Liquid Propane Gas (LPG), electric motors, or other <br /> CARB certified off-road technologies. To find engines certified by the CARB, see their certification <br /> website http://www.arb.ca.gov/msi)rou/offroad/cerVcert.php. For more information on any of the <br /> technologies listed above, please contact Mr. Chris Acree, Senior Air Quality Specialist, at (559) 230- <br /> 5829. <br /> • Construction equipment may be used that meets the current off-road engine emission standard (as <br /> certified by the California Air Resources Board (CARB), or be re-powered with an engine that meets <br /> this standard. Tier I, Tier II and Tier III engines have significantly less NOx and PM emissions <br /> compared to uncontrolled engines. To find engines certified by the CARB, see <br /> http://www.arb.ca.gov/msprog/offroad/cert/cert.php, This site lists engines by type, then manufacturer. <br /> The "Executive Order" shows what Tier the engine is certified as. Rule 9510 requires construction <br /> exhaust emissions to be reduced by 20 percent for NOx and 45 percent for PM10 when compared to <br /> the statewide fleet average or to pay an in lieu mitigation fee. For more information on heavy-duty <br /> engines, please contact Mr. Thomas Astone, Air Quality Specialist, at(559) 230-5800. <br /> District staff is available to meet with you and/or the applicant to further discuss the regulatory requirements <br /> that are associated with this project. If you have any questions or require further information, please call me <br /> at(559)230-6120 and provide the reference number at the top of this letter. <br /> SSiincerel <br /> Chris J. K a hian <br /> Air Qu lity S ecialist <br /> Central a ion <br /> C: file <br />