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~.. ~ .~. <br />FUGITIVE PARTICULATE EMISSION CONTROL PLAN <br />POWDERHORN COAL COMPANY <br />MODIFICATION C-11,670E-2 <br />The following fugitive particulate emission control measures shall be used for <br />enforcement purposes on the sources covered by this permit, as required by the <br />Air Quality Control Commission Regulation No. 1. <br />1. Foam or water spray with chemical surfactant or other chemical additives <br />shall be used at conveyor transfer points and load in to crusher to <br />continuously achieve a control efficiency of 95°6. <br />2. Haul vehicle speed on site shall be limited and posted at 20 m.p.h. <br />3. Conveyors and transfer points shall be partially or totally enclosed. <br />4. Telescoping chutes and/or stacker tubes shall be used to minimize fugitive <br />emissions from free fall.drop of coal. <br />• 5. Unpaved haul roads shall be watered or have chemical surfactants applied <br />to minimize fugitive emissions.. <br /> <br />N-8 <br />New 12/20/94 <br />