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<br />OODH2 <br /> <br />Summary <br /> <br /> Alternative B: Reinstate PWC <br /> Alternative A: Reinstate PWC Use under a Speelal <br /> Use under. Special Regulation With AddItional <br /> Regulatlon.s Previously Management Prescriptions No-Actlon Alternative: Allow <br />1m otTo , M.na .. Preferred Alternative No PWC Use <br />Wate/Quallty P'IJC use rnDac:ts NegligIble to PNC use lITlDads_ Same as P'NC use lmoads BenefiCIal <br /> minor oJdverse effects Ifl 2002 alternative A impact wllh etiminallng <br /> and 2012 based on wnpacls Cl,lmulatrvelfJ'lOacts Same as personalwalercralt <br /> from benzO(a)pyrene. alternatIve A CumulatIVe Imeads' Slm.lar to <br /> naphthalene and benzene alternative A. remaining <br /> {human heallh (lOge shan of molort>oalS would be negligible <br /> waler and fISh) adverse for an ecotoxlCOlogiCal <br /> CumulatIve lmoacts Negligible benchmarkS Impacts would be <br /> adverse In 2002 and 2012 for reduced 10 minor adverse <br /> benzO(a)pyrene, naphthalene, lfTlPacts when the half-life of <br /> and benzene would be nlInor to benzene ,s consJdered <br /> moderate adverse based on <br /> human health benchmai1<.s and <br /> EPA arK! Stale of Colorado <br /> wate, quahty Clrtena Impacts <br /> would be reduced to mlno' <br /> adverse Impacts when the half- <br /> hfe of benzene is consde'ed, <br />Air Quaflty PWC use imoacts- Neghglble P'NC use moacts' Same as PWC use Imoacts BenefiCIal <br /> adverse impacts for CO, HC, altematlVeA Impacts from banmng ?We <br /> PM,. and NO. for the year CumulallVelfrlOacts' Same as use because of decreased <br /> 2002_ In 2012. the Impact level allematlVeA emlS$lOflS <br /> would remain negligible Cumulative tmoac1s' Reduced <br /> adverse Risk from PAH would emisSJOOs from othe, Claft as <br /> befle9ltglble compared 10 aftemallve A, WIth <br /> CumulatIVe ImoactS Negltglble no contribution from PVVC use_ <br /> advers.e fo, PM,o. HC. arK! NegligIble adve'se fOf PM,.. <br /> NO,. and mmor adverse fOf CO HC, arK! NO.. 10 mNlOf' adverse <br /> in 2002 and 2012_ CO for CO <br /> emISSIOns would Increase from Future emISSIOn levels would <br /> 2002 to 2012 Existing all remarnrelallVelyslable,wlth <br /> quahty maintall"led, with future Increased CO efTllS$lons arK! <br /> reductIOns In PM,. and HC slightly increased NO. <br /> emISSIOns due to lmpfOVed eml$$.IOns asa result of <br /> emission conl,ols Increased boallng actIVity and <br /> lhe COfllle'SlOn to cleaner <br /> engrnes HC arK! PM,. would <br /> continue to decline. but impacts <br /> would remain negfiglble to <br /> minor and adverse_ <br />Air Quality Related P'vVC use imoacts: MInor PWC use mDacts Same as ?We use Imoacts Beneftcial <br />Values from PWC adverse impacts from PWC altematlVeA rmpactson air qualrty relaled <br />PoGutants CumulatIVelf1lOacts Mlflor Cumulallvemoacts Same as lIalues <br /> adverse from motonzed boats altemalilleA CumulatlV'El impacts- Mlflor <br /> and personal watercraft,n both adverse mpacts from <br /> 2002 and 2012 based on motonzed boat emissions in <br /> pollutant emiSSlOflS being less both 2002 and 2012, based on <br /> tt\cln 50 tons per year. 00 reglOf\31 SUM06 values. wrth <br /> observed vislbilrty impacts Of very Iitt1e mftuence from <br /> ozone-related plant InJUry. and e.rsllng or fOfecast Curecanti <br /> reglOflal SUM06 lIalues, WIth walercraft operations <br /> very little N"lfluence from <br /> eXISting or forecast Cureeanll <br /> watercrafl operatIOns <br /> <br />TABLE A: SUMMARY OF THE IMPACT ANALYStS <br /> <br />, <br />