Stat e o f Wisconsi n

DEPARTMEN TO F NATURA L RESOURCE S 10 1 S . Webste r Stree t Bo x 792 1 Madiso n W l 53707-792 1 Scot t Walker , Governo r Cath y Stepp , Secretar y Telephon e 608-266-262 1 Tol l Fre e 1-888-936-746 3 TT YAcces s vi a rela y- 71 1 WISCONSI N DEPT . O F NATURA L RESOURCE S Apri l 17 , 201 2 

## RECEIVE D Susa n Hedma n . AP R2 0 201 2 U.S . Environmenta l Protectio n Agenc y (EPA ) - Regio n 5 TM l x 7 7 Wes t Jackso n Boulevar dy $ - Mai l Code : R-19 J ^^OFRS^^^^ 1 " Chicag o I L6060 4 Subject : Re : Wisconsin' s 12 0 Da y Lette r fo r Ozon e Designation s Dea r Regiona l Administrato r Hedman : Than k yo u fo r th e opportunit y to provid e comment s o n th e U.S . EPA' s recentl y propose dai r qualit y designation s fo r th e 200 8 ozon e Nationa l Ambien t Ai r Qualit y Standard s (NAAQS) . Thes e comment s are i n respons e t o a lette r w e receive dfro mth e U.S . EP A o n Januar y 31,2012 . National Consistency Wisconsi n recognize s that Illinoi s submitte d201 1 certifie dozon e dat at o th e U.S . EP A earl y an dbase do n 200 9 - 2011 , th e Chicago-Naperville-Michiga n City , IL-IN-W I Combine dStatistica l Are a(CSA ) violate dthe ozon e NAAQ S base do n amonito r locate di n Lak e County , IL . Illinoi s mad e thi s decisio n i n orde r to receiv e additiona l Federa l Highwa y Administratio n (FHWA ) Congestio n Mitigatio n an dAi r Qualit y Improvemen t

(CMAQ ) funds , o f whic hKenosh aCount y an dth e remainde r o f Wisconsi n wil l receiv e n o additiona l funds . Fro masimpl e standpoin t

o f nationa l consistency , th e U.S . EP A shoul dno t allo w individua l CSA' s t o selec t th e 3-yea

r perio d that suit s thei r

individua l situatio n best , as di dth e Stat e o f Illinois . Th e U.S . EP A shoul dmaintai n it s positio n o f usin g th e defaul t

dat aperio dfo r

ozon e designation s (200 8 - 2010) . Kenosh aCount y me t th e ozon e NAAQ S wit h adesig n valu e o f

7 4 part s per

billio n (ppb ) durin g that period ; therefore , Kenosh aCounty should be designate d a s "unclassifiabl e /

attainment. " Additiona l suppor t fo r thi s positio n i s provide dbelow . Emissions Pe r analysi s presente di n th e U.S . EPA' s ow n technica l support documen t

(TSD ) fro mJanuary 2012 , Kenosh a Count y onl y contribute d1.7 2 percen t an d1.8 9 percen t

o f th e tota l nitroge n oxid e (NO x ) an dvolatil e organi c compoun d(VOC ) emissions , respectively , i n th e Chicag o CS A i n 2008 . Moreover , i t i s likel y tha

t Kenosh a County' s contributio n ha s decrease dfurthe r sinc e emission s hav e continue dt o decline . Th e followin g wa s als o note di n th e TS D fro mth e U.S . EPA : "Kenosha County presents a more unique situation for this designation analysis. The VOC and NOx emissions in Kenosha County are relatively low and similar to those for

counties recommendedfor exclusion from the intended ozone nonattainment

area. In addition, it

is noted that Illinois' and Wisconsin's wind

direction analyses for

high ozone days indicate that Kenosha County emissions are probably downwind

of the violating Zion, Illinois monitor on high ozone days. These conclusions would support the exclusion of

Kenosha County (emphasi s added ) from the intended ozone nonattainment

area."

dnr.wi.go v wisconsin.go v 

## Naturally WISCONSI N ^PRINTED WON RECYCLED fPAPERPag e 2

Kenosh aCount y shoul dno t b e designate dnonattainmen tfo r monitorin g anothe r

state' s ai r

qualit y ove r which th e Stat e of Wisconsi n ha

s n o control o rauthority . I n addition , th e U.S . EP A entirel y ignore s th e fac t tha t emission s fro mKenosh aCount y likel y contribut e extremel y littl e t o th e violatin g monito r i n Lak e County , I L o n hig h ozon e days . Population Th e U.S . EPA' s January 201 2 TS D als o recognize s tha t Kenosh aCount y comprise s onl y 1.7 % o f th e tota l populatio n o f

th e Chicag o CS A an dtha t th e count y ha s a"moderatel y lo w 201 0 populatio n compare dt o thos e o f highe r populate dcounties i n th e [Chicag o CSA]. " Whe n Kenosh aCounty' s moderate populatio n density i s couple dwit hit s lo w tota l population , i t strongl y indicate s tha

t population-relate demission s ar e no t likel y t o significantl y contribut e t o th e violatin g ozon e monito r i n Lak e County , ELo r

th e ozon e monito r

i n Kenosh a County , Wl . Traffic and

Commuting Patterns Traffi c an dcommutin g pattern s informatio n i n th e U. S EPA' s TS D furthe r suppor t th e fac t that Kenosh aCount y shoul db e desig n ate dattainment a s th e vehicl e mile s travele d(VMT ) for , Kenosh aCount y i s onl y 1 . 9 % o f th e tota l V M T fo r

th e entire Chicag o CSA . Deleterious Economic Impacts Designatio n o f

Kenosh aCount y as nonattainmen t woul dplac e undu e economi c burde n throug h regulator y requirements , as existin g source s hav e expende dsignifican t amount s o f

mone y t o reduc e thei r

emission s ove r

th e pas t decade . I n addition , there i s aknown , negativ e stigm afo r economi c developmen t associate dwit ha nonattainmen t

designation . Nonattainmen t woul dplac e th e futur e o f economi c developmen t i n Kenosh aCount y a t risk . Wh y plac e th e futur e o f Kenosh aCount y economi c developmen t a t ris k whe n i t i s clear that the primar y culpabilit y fo r

ozon e pollutio n i n Kenosh aCount y rest s wit hth e Chicag o area ? Based on th e factors discusse d and analysis fro m th e U.S . EPA , Kenosh aCount y should b

e designate

d a s unclassifiabl e /

attainmen

tforth e 200 8 ozon e NAAQS. , .. y The Chiwaukee Ozone Monitor Th e Departmen t

doe s no t

believ e th e Chiwauke e ozon e monito r (55-059-0019 ) locate di n Kenosh aCount y nea r th e cit y o f

Pleasan t Prairi e shoul db e use dfo r regulator y complianc e fo r Kenosh aCounty . Thi s reiterate s a positio n take n b y th e Departmen t i n aletter

sen t t o Ms . Chery l Newto n o n January 18 , 2011 . A U.S . EP A monitorin g guidanc e documen t state s tha

t "fo r regulator y compliance , th e principl e objectiv e i s t o measure the ozon e concentration s i n th e hig h populatio n density area s an dth e maximu mdownwin dconcentratio n fro mthe urba n region. " Th e curren t Chiwauke e ozon e monito r i s no t locate di n ahig h populatio n density are ao f th e count y an di s no t

downwin do f

an y emissio n source s locate dwithi n Kenosh aCounty . Furthermore , a s note d above , th e U.S . EP A informatio n indicate s tha t les s tha n 2 % o f

NO xan dVO C ozon e precurso r emission s i n the Chicag o CS A com e fro mKenosh aCounty . Relocatin g th e Chiwauke e ozon e monito r woul dhav e littl e t o n o impac t o n th e measurement

o f regiona l ozon e concentrations , namel y fro mth e Chicago-Naperville-Michiga n Cit y CSA . Th e ozon e concentration s measure da t th e Chiwauke e ozon e monito r ar e redundan t

compare dt o thos e measure da t th e Stat e o f Illinois ' Zio n ozon e monito r (17-097-1007 ) locate da t Illinoi s Beac h Stat

e Park . Th e ozon e monitorin g site s ar e separate db y a distanc e o f

onl y 2. 5 miles . Th e redundanc y findin g i s supporte db y arecen t 5-yea r network assessment

b y Regio n 5 state s unde r

leadershi p fro mth e Lak e Michiga n Ai r Director s Consortiu m(LADCO) . A s par t o f thi s network assessment , LADC O use dcorrelatio n analyse s conducte db y th e U.S . EPA . Fro m200 6 throug h 2008 , thes e tw o ozon e monitorin g site s ha dacorrelatio n coefficien t (r-value ) o f

0.9 7 an dan averag e relativ e percen t differenc e o f

onl y 0.070 . Recen t

ozon e monitorin g dat aindicate s amuc h highe r degre e o f

correlatio n betwee n th e site s tha n tha

t indicate di n th e U. S EPA' s TSD , whic hconsider s dat aprio r t o significan t

NO xcontro l measure sPag e 3

i nth e region . Th e degre e o f correlatio n i s th e secon dhighes t fo r an y other

Illinoi s ozon e monitorin g sit e an dth e highes t fo r an y other

Wisconsi n ozon e monitorin g site . Th e U.S . EP A shoul dprovid e Wisconsi n express permissio n t o relocat e th

e Chiwauke e ozon

e monito rt

o an are a o f th e count y tha tmor e accurately measure

s ozon e tha tis due , a

tleasti n part , t

o precurso remission

s emitte d i n Kenosh aCounty . I nth e even t

tha t th e U.S . EP A wil l no t

allo w relocatio n o f

th e Chiwauke e ozon e monitor , dat acollecte dfro mthat monito r shoul db e use dt o determin e complianc e wit h th e ozon e NAAQ S fo r onl y Illinoi s countie s i n th e Chicag o CSA , an dno t

Wisconsi n counties . Thi s i s consisten t wit h th e origina l rational e fo r placin g th e monito r

i n Chiwaukee . I nan y event , durin g 2012 , Wisconsi n intend s t o identif y an appropriat e locatio n i n Kenosh aCount y fo r a n ozon e monito r that wil l measure ozon e concentration s mor e representativ e o f genera l populatio n exposure . Wisconsi n wil l note thi s i n it s 201 3 Monitorin g Networ k Plan . Wisconsi n intend s to hav e th e ozon e monito r full y operational-b y th e beginnin g o f th e 201 3 ozon e monitorin g season. . Than k yo u fo r consideratio n o f

thes e comments . I f

yo u hav e an y question s pleas e fee l free t o contac t Bar t Sponseller , Ai r

Managemen t

Burea u Director , a

t (608 ) 26 4 - 853 7 o r

Bart.Sponseller@wisconsin.gov . Respectfully . 

# 7 7

, Cath y Ste^p , Secretary i' Wisconsi n Departmen t

o f Natura l Resource s cc : . Patric k

Stevens , Ai r

an dWast e Divisio n Administrato r - A D / 8 Bar t Sponseller , Ai r

Managemen t

Burea u Directo r

- AM/ 7 Josep h Hoch , Regiona l Pollutan t an dMobil e Sourc e Sectio n Chie f - A M / 7