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Kathy Allen `. June 13, 2006 <br /> PA-0600228(SA);Pace Supply Corp.;4015 N. Newton Rd.;APN 132-070-06 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 (CARB) 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 /> htti)://www.epa.gov/oms/models/biodsi.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.qov/nisr)rog/offroad/cert/cert.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 CARB), or be re-powered with an engine that meets this standard. Tier I, Tier II and <br /> Tier III engines have significantly less NOx and PM emissions compared to uncontrolled engines. To <br /> find engines certified by the CARB, see http://www.arb.ca.qov/msprog/offroad/cert/cert.php. This site <br /> lists engines by type, then manufacturer. The "Executive Order" shows what Tier the engine is <br /> certified as. Rule 9510 requires construction exhaust emissions to be reduced by 20 percent for NOx <br /> and 45 percent for PM10 when compared to the statewide fleet average or to pay an in lieu mitigation <br /> fee. For more information on heavy-duty engines, please contact Mr. Thomas Aslone, Air Quality <br /> 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 /> Chris Kalashian at (559) 230-5818, or Mr. Dave Mitchell, Planning Manager, at (559) 230-5807, and provide <br /> the reference number at the top of this letter. <br /> Since4� <br /> Chrisn <br /> Air Quality Specialist <br /> Central Region <br /> C: file <br />