### Fo ll ow- up i te m s fro m 12/21 reg i ona l haze m eet i ng Fran c i sc o D one z to: mf reea rk , j y o ck ey , eba kk en, k a r a.monta l v o, Cha r l e s

. S pe ll , C.Matha i , s u s an. k i dd, e cm 12 /29 /2011 10 : 41 AM C c: C o ll een M c K aughan , Tho m a s Webb , S c o tt B ohn i ng , St e v e F rey B cc: C ha rl o tt e W it he y , M a rga re t Al k on He ll o e v e ry one: It wa s g reat to meet w i th y ou a ll l a s t W edne s da y rega rd i ng EPA ' s a c t i on s on A r i z ona reg i ona l ha z e. M y apo l og i e s fo rthe de l a y i n s end i ng y ou th i s me ss age; s ee be l ow fo r i nfo r mat i on on the reque s ted fo ll ow - up i tem s. 1. D o c umentsfrom N ev ada R eg i ona l Ha z e S I Pdo cket : He re i s a li n kto the do ck et that i n c l ude s a ll the mate r i a l s of re c o rd, i n c l ud i ng pub li c c omment s , fo rthe p ropo s ed app ro v a l of the Ne v ada Reg i ona l Ha z e S I P : http://www. regu l at i on s .go v/#! s ea rc hRe s u l t s ;d c t =PS ; r pp = 25;po = 0; s =EPA

- R09 -O A R

- 2011

- 0130 S ee the atta c hment s fo r c omment s f rom a c on s o rt i um of en v i ronmenta l g roup s and W il d E a rth G ua rd i an s

. T he two repo rt s that we refe ren c ed i n ou rd i sc u ss i on s w i th rep re s entat i v e s of the A r i z ona ut ili t i e s a re a l s o c op i ed be l ow, and we re atta c hment s to the c omment s f rom the en v i ronmenta l c on s o rt i um. E n v i ronmenta l Con s o rt i um :

E n v iro s Si e rra Cl ub e t a l. pdf E n v iro s Att 1 G ra y R epo rt. pdf E n v iro s Att4 Pl e ss R epo rt. pdf

W il d E a rth G ua rd i ans :

W il d E a rt h G u rad i an s

. pdf 2. As ment i oned du r i ng the meet i ng, we a re s ee k i ng em i ss i on s data fo r A r i z ona s ou rc e s e li g i b l e fo r BA R T ( B e s t Av a il ab l e Ret rof i t T e c hno l og y) , fo ru s e b y EPA and i t s c ont r a c to rfo rmode li ng v i s i b ili ty i mpa c t s fo r BA R Tana l ys e s

. T he data we s ee k i n c l ude s the s ta ckpa r amete rs li s ted be l ow. It a l s o i n c l ude s c ont i nuou s em i ss i on s data y ou ma yha v e that i s not a v a il ab l e on EPA ' s E m i ss i on s Co ll e c t i on and Mon i to r i ng P l an S ys tem ( E CM PS ) ; th i s w ill he l p i n dete r m i n i ng the ma x i mum 24

- hou rem i ss i on r ate fo ru s e i n BA R Tmode li ng. W e wou l d a l s o li k e an y s ta ckte s t data that wou l d he l p to dete r m i ne P M s i z e f r a c t i on s and c hem i c a l c ompo s i t i on. T he p refe rred fo r mat i s an E xc e l s p read s heet.

a. P l ea s e v e r i f

ythe s ta ckpa r amete rs li s ted i n the BA R Tana l ys i s do c ument (s) fo r y ou rfa c ili tyon A D E Q ' s Reg i ona l Ha z e and V i s i b ili tyweb s i te ( http://www.a z deq.go v/en v i ron/a i r/ha z e/ i nde x .htm l) , and a l s o p ro v i de l at i tude and l ong i tude c oo rd i nate s fo rthe v a r i ou s em i tt i ng un i t s (s ta cks) , and an y i dent i f

y i ng c ode numbe rs s u c h a s O RI S c ode s. Ident i f y i ng ID c ode s (O RI S , and othe r i dent i f y i ng c ode numbe rs) S ta ck l o c at i on Lat i tude Long i tude S ta ckpa r amete rs ( p refe rred un i t s li s ted, but othe run i t s O K): S ta ckhe i ght ( m) B a s e e l e v at i on ( m)S ta ckd i amete r ( m) E x i t v e l o c i ty ( m/s) E x i t tempe r atu re ( K

o rC) S ta ckpa r amete rpage numbe rs i n P D F f il e s on A D E Q web s i te ( http://www.a z deq.go v/en v i ron/a i r/ha z e/ i nde x .htm l) : APS Cho ll a P owe r P l ant ( 110810d.pdf, 110810e.pdf, 110810f.pdf) s ta ckpa r amete rs : pdf.16 AEP C O A pa c he ( 110810h.pdf) s ta ckpa r amete rs : pdf.17 S R P Co ronado G ene r at i ng S tat i on ( 110810 l .pdf) s ta ckpa r amete rs : pdf.19 and 33 APS W e s t P hoen i x ( ap s wp1.pdf) s ta ckpa r amete rs : pdf.8 b. P l ea s e p ro v i de a v a il ab l e em i ss i on s data. T he p refe rred un i t s a re li s ted, but othe run i t s wou l d be O K

. W e w ill be mode li ng ma x i mum 24

- hou rem i ss i on r ate s ; data fo r2001

- 2003 and o v e rthe pa s t few y ea rs i s de s i red. T h i s ma ybe i n the fo r m of C E M S data, i f that data i s not a v a il ab l e i n EPA ' s E m i ss i on s Co ll e c t i on and Mon i to r i ng P l an S ys tem ( E CM PS )

. Y ou ma ya l s o w i s h to p ro v i de note s on ma l fun c t i on s and e xc u rs i on s that s hou l d not be i n c l uded i n c a l c u l at i ng the ma x i mum 24

- hou rem i ss i on r ate. S O 2 em i ss i on Rate ( g/s) N Oxem i ss i on Rate ( g/s) P M2.5 em i ss i on Rate ( g/s) P M10 em i ss i on Rate ( g/s)

c

. P l ea s e p ro v i de an yem i ss i on s data that ma ybe a v a il ab l e f rom s ta ckte s t s , fo rthe fo ll ow i ng c ompound s

. T h i s w ill he l p i n a ss i gn i ng em i ss i on s to the app rop r i ate c hem i c a l s pe c i e s and s i z e f r a c t i on i n the C A L P U FF mode l i nput. S O2 S O 4 (s u l fate) N Oxand/o rN O 3 ( n i t r ate) NH4 ( ammon i um) E C ( e l ementa l c a r bon) O C ( o rgan i c c a r bon) P M F ( f i ne pa rt i c u l ate matte r) P MC (c oa rs e pa rt i c u l ate matte r) ( o r v a l ue s fo rothe r s et s of P M s i z e r ange s) 3. As ment i oned du r i ng the meet i ng, EPA w ill adj u s t the i nfo r mat i on s ubm i tta l dead li ne s i n c l uded i n the l ette rs s ent to i nd i v i dua l fa c ili t i e s , a s app rop r i ate, to a ll ow s uff i c i ent t i me to s ubm i t the reque s ted i nfo r mat i on. W e w ill a l s o s t r i v e reque s t i nfo r mat i on i mmed i ate l ya s need s a r i s e, to ma x i m i z e l ead t i me fo r c ompan i e s to re s pond. F i na ll y , a s reque s ted b ymeet i ng attendee s , EPA w ill d r aft i nd i v i dua l l ette rs to ea c h ut ili ty c ompan y i nd i c at i ng that the reque s ted dead li ne s c an s h i ft a s app rop r i ate. P l ea s e c onta c t me i f y ou ha v e an yque s t i on s on the abo v e i tem s o ran yothe r reg i ona l ha z e matte rs . I hope y ou a re a ll enj o y i ng the ho li da ys. B e s t, Fr an c i sco Fr an c i sc o Dóñe z , P h.D. U S E n v i ronmenta l P rote c t i on Agen cy O n deta il to A i r P l ann i ng O ff i c e ( A IR

- 2) 600 W il s h i re B l v d., S u i te 1460Lo s A nge l es , CA 90017

T e l

. ( 213 ) 244

- 1834 http://www.epa.go v/ reg i on9/a i r/ i nde x .html http://www.epa.go v/ reg i on09/f i e l doff i c e s / l o s- ange l e s .html