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<br />L Potential Fllgili:ve Emission Sources and Management Controls <br /> <br />A. Transport Shot Rock to Cl1lBher - Loader traffic to and from the primary crusher from the <br />shot rock or rubble pile :may create excess fines in the tire lanes whe.n surface moisture <br />conditiOlUi are diy. Loader operator:; should scnpe and replace traffic lane aggregates when <br />necessmy to reduce surface fines. Water may be added IlSDeCessary to ID";lJt:rin fugitive <br />suppression. <br /> <br />B. Cntshing Operations - Each reduction phase of the aushing process has th~ potentia! to <br />genenrie fugitive emissions. Prirruny crushing typically e.rlnbits the least fugitive ge.lieration, <br />with each SUCcessive reduction having a greater potenfui[ for emissions. Each:facility or crushing <br />8p:reBd has spray equipment on site, including pumps, b, spray nozzles, and spare parts. Spray <br />nozzle location and water application rate is determined by the opernto:r to provjde maximum <br />controllllll;ler situational circumstancelL The nome or nozzles may be located on one crusher or <br />all crushers at the fa~!y, depending.on the needed con1roL . <br /> <br />C. Screening Operations - Screening opemtiOlUi may genernte fugitive emissions and are <br />particularly SUSCeptible to wind and low moisture co.nditi<ms. The initial SCceen may have <br />adequate material moisture for good emissions cootrol in lII.ost Cn-cnmstances, but as with the <br />reduction phase, each SUCcessive SCreening operation has 2Il increased potf:mjaI for emissions, <br />with decreased. material moisture contents and finer fuIctions. Water addition during crushing <br />typically exhibits the' I>est.COIItrol for screening operntions. ~ waJer applications are <br />ineifuctwe, shrouding may be added "to the screen llJli.t.J 10 minimize wind influence 00 the under- <br />size 1Iacti.on. SeV1:re conditions may reqnire fuat screen ll1Iits be re-oriented to mm;m,:n. wind <br />inftuence on the screen &Ce_ . <br /> <br />D. c.u.veyiDg ef ~ PnHlads - Conver-mce of rock products duriDg the ~ of <br />IIggrega1cs exhibits the least ~ for 1Dgitive em;~ of all the ~ at a &cility. The <br />drop ortmnsCtr poim:s.~ ~ and ClJl11I'eyoIs puvjde h: moot ~:b: <br />~ hut IlleVpicialiy h: ilIIsiest to CIlIIIml.. W"mdadlor low moisIure ClOOItitinos may be <br />aI.red by WIIIcr 8ppJiG.riou, ~ of h: bJa- poUt, ador.ure hoods .00 boob, .m <br />mi'.mQ~fIe~ IQ,pt Id......... ~poims. ForIlllDftl ~ ~ofa <br />1IiDeIe....... ..-.... 1001 -.yllr: w.y ti1L4i.e in ~ ~ &t._ Ill....... of <br />wiud__ __ -.i1lltlG-.;y.... ~ fie 1IIIl: tftwu or IIIQre wile lI\'lIiIaWc ClIIIdI:o] <br />~ to ph'* ~~~........... JOt\~ <br /> <br />&. ....~........,. "'-... - ~......- .........~ <br />... lltllf~... J.i ..iR................._...~~ fIWI._-.: <br />....., ....*.8O ~ .....~..... lie................. 1lIloI_,-- L-dc.- <br />.... ~ ...... ..~ : ...... ..... · 4.. ........ jIt.&-Al;wlaa.IIe......1adIic .. <br />~ tin: ....~.. ...- lues. 'nnaI-.IJ.., lie .......cI.. ...... _ 4- _ 4IlIiIt <br />. , MMo--...4 h.... ~...... ~ IIId wl'-ce lIf.",..... .Ii -I "'-1Ie <br />'. tlflWift: iR ~ '-ft......... Aam.. ...-~ ~...... wIae... ........,__ <br />., ...... --.ua ~ .....dWI...... filcitift'" "int. 1alIJic ......, lie JIhad <br /> <br />.. :.;..;! ::.. ':- -:.. . ' <br />