# March 13, 2009 BILLINGS (iENERATlON, INC. Suile 200 lOS7 West Riycr Street

Boise, Idaho S3702 Telcphonc (208) 344-31570 Tclccopicr (20S) 344-:39S4



# Ms. Laurel Dygowski U.S. Environmental Protection Agency Region 8 1595 Wynkoop Street Denver, CO 80202-1129 Dear Ms. Dygowski: I am in receipt of your letter requesting stack and emission information about the Yellowstone Energy Limited Partnership (YELP) facility located in Billings, Montana. I have gathered the data to answer your request. The data is contained in a spreadsheet attached to this letter. Please note that in some cases where there was no data available, we have estimated data, and have noted such estimates. Inc. (208-344-

STATEMENT OF CERTIFICATION I certify under penalty of law that I have personally examined and am familiar with the information submitted in this 

# dool:t ent and all attachments and that, based on my inquiry of

# th~_i~ediatelt:esponsi e

# for~ining this information, I believe that the informatiovr'is tru , accur te 2lnd co pie. am aware that there are significant

# pen~ltie I for sub itting a . for

# a~on, includin 

# je possibility of fine or Imprison e " 

# I f



# Title: President Billin s Generation Inc general partner of Yellowstone Energy Limited Partnership Date: 

# -----'----"'--+--------------

### Requested Information Part I: General Facility Data 

### Response Source Notes

11. Name of Facility IYello,"slon. Limited Partnership 

## I I

I 

### --I

## 2·.~oll1Jllete**stree~address** offacilily:
- --- 

# _-= 2215 N Frc)nlage Rd
------ n__ 

# n._n____ --. 

# I**~eetAddres'" Bill,"~**  ---- 1 b. 

### ....QlL_
--- ".-- Montana

__

# ~Stat~_________ --- 59101 - _ __._

# -d~**Zi~___** -_._- ---- Yellowstone Count e, Coun 

### 1-.**Facili.!Y_9..oJ)~cL** _

a. Name: (First. Last) b. Title: 

# ----c:T8I8PhOnenumber:-

d. Fax number:

-- 8. E-mail'
- .-

# --==~~~~c---- 

# ------ -- -------j--------

-- - ----I '208) 344-3570 

# . __ ... --_.--. ----1----

- --- -- ---- ._,(208)**344-3.9~'!....** _

scott.siddow8v@rosj·boiss.com

### Requested Information Response Source Notes Part II: Boiler Emission Unit Data

--

-------'-- 

## ----+---- L**El'1~slon** 

### Unit name: EU1lCircuialirlg**Fluidize~~(L13oilE!rL** 

### _

a**T~f** Boi!er__

__ __ _ Circulating**Fluidiz~d** bed Combustion



### __ b Make

__ - - - ---- 

# =**I~~ii;;:F'~w"r** 

# _

c. Model: HCFS -C:CModeIYear

- ----.-- 1994

----- 

## -e:YearTflStalJed
------------- 1995--

### ~[~~!e.9_~9!:!jp01-~~nJj~~~_~ 

# ----_-===**~~~!~9_!T1 instaiJ§~n~~_~-**  _[ Unit is**cu~_q~~_C!t~f!~I** ..**(y_~s/noL ~__** **y~** 

### . . _

## Jf.~858te**OtfrnaioQer8tjon_---~______** 

# -------1----------------- --I

i(Will unit be ogerated in future: 

## h. Ma;jmum"Unit Caoacitv 

## (MMBtufhi\
-**--------------r455~5-·per** boiler

Due to 

### a shared staCk. the unccntrolled emissions are estimated from a pre rating of the totals based on individual boiler heat inputs. IndiVidual unit tesl data is not available for these units 

### 2. Boiler Ouliellnformation _§,_**Q_9~~** 

### unrt share**eXh~iL;stsla-Ck?-~---- ~~___**  

## _ _ Which unlls is it shared with? EU2**-~~haustVOlumetriCFJOivR.a!~t(a"** 

### cfm): 

# -=-_=- BOiler"**~22_2.3?_7.e-,timaled.** 

### Combined St-a.£k _;_**444,71,f~'** 

### act"**stac-"_te~t a-v~-**  

# I Due to a shared stack, the volumetric flow rate is estimated from a pro-ratln**_~** Boiler**~b~l;Jst** outlet Temperature 

### (flu**34q~"~** 2005 stack test**averag~** of the totals based on mdividual boiler heat inputs. )ndlvldual unit test data [

. d. Bailer Exhaust**Molst~.r~** (%}**~________** _ 7.24%

_ _ _ 2005**~~~*_~~_.~y_~r_age** not available for these units 

### e Stack Height (ft) 

### 199' 2006 Title V 

### application DiameteCift)

- --- . -- -- - 

# a:- - .- --- ------- 2006 Title V 

### application

### l~_g:M"xirnlJl1l**HourlyGr9"_J:leatlnJiu.ili0.M~tu/iirj-** m 

### Sailer 

### L; 45.5_ 

### S :-**eS~rflaied.~Cornbined** Stack

- 91-1 -.accllJill
. QdglDalaii

### Quailly'p~rrnjt 

# t--**-~.** Hours of OQ"r"tjo_n. 8,300

----------- -------.-.--

# J~~i:~;~~~~~,~:~~(;J::~~i,O~jt~2~r)~,. :

# --~ __

# ~~iftl;,.@,-es!jmated,**~~~[I}5!_d_$.~~Ck,~ 132(fib-SIh~~_~~ma,**  t.e 2005 stack

# iest:~Clr1Irol_eti;CfencLI _k.**avera~~I').fQlJtcoll~d** NOx emiSSIOns (lblhrL_

_ __ B01!er

__ !....=_?_SQ. estimated, Combined Stack;; 500 Ibslhr
-**estlma!~c** 200§. stack test,**conlroL~!ficie~1'.-** _ I. average uncontrolled S02 emissions (Iblhr). Boiler 1 

## = 2781 estimated, Combined Stack
- 5562.51bslhr estir 2005 stack test. control efficiency

The CFB boiler IS a relatively low emitter of NOx due to a lower firing

________ . . .. j temperature compared to standard pulverized coal boilers The unit does n however, contain any post-combustion control technologies.**---~---'**

Due to 

### a shared stack. the controlled emissions are estimated from a prorating of the tctals based on individual boiler heat inputs Individual unit te data is not available for these units. 

### 3,**EXlstln.g-,,~uli9Jl<::-"Illr"'--E..qtJijlment_**



### a. PM Control Technology Information

# }~:e1~~eT~n~~~~fi6~~~~ii~-=--=~_~ __

# n ~ __

# :-J'~~~~=~~n_- 

# _ -**~~~___=~--:.** 

# n

_ _**~- =~I%~@** **~~::_~ :~~:~~~**  

# -=---=

_ _ iii.**Ye§!:l~st_alJ~~.** .**~______** _**~~5** ._ .. _ _

# ~~~~~~_~t ()f qQntrol Device

# J~L " Iunknown_: was

# ~faled into piant

# 0~~.9.Sl...___ _ _



## v.. Annual Operatin9.<::ost of Control-Device**(~yrL** 

### __ . Boiler 1 ; S100,.o00, Main StaCk; S200,OOO v!**_Exp~E.~~~pme~_~·** 30 years frcm**~nstaIL~~~** _ .**~___** _ _



### __ ,,-,,- Relevanl sizinginrormation
.**~0<l,1,o,o_acfm p-",-t)o~r:."Jlpro~lm~e_______**  

### 2006 Title V**apjllic.'l~on** 

### _

_**~~~i_g[l ~ntfl?~_efficleQ0J~L_______**  _**9~:r?** __ _ _ _ __ ._________ _ 2006 Title V application 

### IX**~ver~.!'** 

### ContrOlled PM**~I1lJssic>llsjlb~L** 

### Boiler 1_;6 6 esti'llated. Combined StaCk; .13_2ibslhr

-**.~~al** 

### 21612007. stack**~esL** 

### __**=--b.NO~f.()~~~~TechnofQgy Inform~i~---'---===~~__**  _ ,._.,_,._______ _ "**_-,-lYe~_of** 

### NOx Control Technology_

_ CFEl.boil,,:,:

1 _ 1/ 

### Make/Model."f NOx Control

### T~"-nology --- ---

### ~la_ HI Year Installed n/a



# ___ -'v Installed Cost of coiltr.onfiViCe-**(~L==---** 

## -- nhi-

__ _**_~ Annualgp-"'-alIn~~r1trol** **DevlC~~...':L** 

### n./9.. "**""-~cted-"~eofe.'Jll'f'ment** 

### _ __ _ _ 

### nla

_ VII Relevant S!Zlng rnformatlon n/a

- VIII DeSign controlefflcler1c?Y**{~o)** ------ -- 

### 80%--

-- .., 

# _u_____**1~.Q6** 

### Title V 

### afJplication 

# I --=- ix.**Avera~e~C_o_ntrolled** NOx**Emissio~_S(ib7hr)** 

# =-==- Boiler 1**~50 este-~aK~,-** **~O~bined** Stack
- 100 Ibs/hr-**ac~.':§L_~cal C~E.r,.il-Q~**  

### _

- b' -S.2-2 Control TechnologYlllformalcon______

_ __ _ _ _ _ __ _ _ _

_

## ~pe 01502 COntr()ITechn<Ol".g!'

_ _ LI'IlestoneIIlJecllolllcJ.f"S S.a"er

_ 

# j_

_ _

II Make/Model of 502 Control**Technolog~** n/a

. _ _ The limesto;le injection control technology IS a part in the operating proces**---~Year** Installed
- -- ---- -- - 

### 1995

-------- -- -**--------,-,-----~_-** of the CFB bOiler It IS not a separate "add-on" device. but it does succeed i

__ IV Installed 

### Cost

# af.f~.!rol**p~vice-{S) ~~-_---**  - nia -=-feature-Of 

### C.f!3

# b~~ -_----=-=--

# _~ - --

# ~_~~ - _.

# --=------::-:_~ controlling S02 emisSlcns at the pefmilled conlrol effiCiency. 

### ....Y.- Annual**0p~aling** 

### Cost of C0.l1trol**~Ice (Sl~_**  _ _ 

### S2 280,000 per year total- S1_.140 000 per bOiler

_ _ _



### _ vi.**~~£ected** life of**eq~!!!ent:** _.________ 30 years 

### Jco_r::'_ present
. _ 

# _= VII.**Rel~y~Qt_~formati~__** . _ 39,100Ibs/h.!..tctal,**19,550E~~rboiler ~------_-_------~--------**  viii.**~n** control**efficienc~** 92%

_ _ _.. 2006 Title V application 

## ,X: Average Controlled 502 Emissions 

### (j5/hr)-------- Soiler 1 

# -= 222.5 estimated. Combined Stack

- 445 Ibslhr

- actua Tvpical CEM Data

--

___**~rT!~.IdD!..Qfl~HLs~j_ftcn_~)**

Sulfl,l!._(:onte:Jl_of Fuel**(?~_~~·L.** 

### _**~_?~Lrn!:JiD..£!!.el.Eld.og** 

### .R2_te {ts>[lIhr; _ _Heating Valee olEuel**(Slu~.b),_.**

__ .Yi!.§c_of**Da!~Jf Not_~QQ?--,!~il_§on**  for**_QQ.L.!:J~Lr:!g_~_Q~** 

### __ 4. Fuellnforrnation

_ . 1_

_ _**~i,L~a.c-h.IYl'e** 

### of Fuel**Us~d__** 

### __ .____ «Oke l 

### Coker**~s** 

### .. _ 

# L

_

- -------- 124,350 tons l252.310 tons

# -per~---- ----·---f200Tj;,;el ese·· \_ , '
. 

# -------.-.--- ---------,-- ----------- r---------------- ------- ,uel use was even,y Spilt oewee·" the two bOilers 

### 14506130o

### ~-----**----~Iypic"J fueianiil~is.------** 

__

# 1~7~TOdh~-I~To~~~0~r- __

# ~_:._=~ 

# __**=_-~---_--I-** 

# .,.**_~~~_~-=** 

# __

-

# ~~~**°t~~~yei~_~~~~;a~~"_~~~p~~Ii~;o~coker** gas

__

# I~tP~-a~ue!fln~ySl~ _

### Requested Information Part II: Boiler Emission Unit Data 

### Response Source Notes

1. Emission Unit name:**a~** 

### l'P_e of**.!l.~r~-** 

### -- -



## _**Jl..~-"k~_**



### c Model C1Modal Year

"-Year Installed

### T~eCtedE_~ui!l'11irill;fe



### ___ 9 _" U--.O.illi curreD1!Y

__**QP_~r§!ion~LJY§.§LC~) ~---** **~~l.Q~e Qffina!~p~~_~** 

____ Ii**VViIl_~_nit** be operated in 

### futlJrEL

h Maximum Unit Capacity (MMBtu!h( 

# I**ClrcuJat!ng}luidlze~** -bed

### Corribu~t1on

- --

### ~~~1ella**P~\'I~r-_=-~____~~=** _**199~** 

## _ ya.'-

455 5 per bOlier ,-- 

### ----1-----

- ---

oriainal air Quahty permit ----- 

# I

I 2. Boiler Outlet Information**=~a-·-DQisu0it** 

## share**ex~cic_** 

## _ __ .. __ ---._--**y~--** \I\lhich units is it shared with? EU1



# ___ .!i.

__ Boiler**~xhgust Volurn.el'l~I'I~_~'!t8~laciii1i--~er2_=~i22357** **estimaled_~,,-mb;;,eifStack;444,714** 

### '-"CtlJ 

## -005 sfack**tisTav~~g~** 

### c.**Boi~""h?lJ.st** 

### outlet Temperature(FL 340"F ;1005 stack test**aver~g,,-_**



## __ cJ**B_oi~Exhaus( M()i~tur,,-{~_**  

### _ 

## L2.i"'_

_ 200.5._S!a.ck lestaver"Jl.e 

# t

-"- Stack**H_~igQ1ifl)_____** 

### -----**]~'** 

### -- - ------- -**~006** 

### TItle V -"PPlicatio"--l

# ~:~~~~~~~'"ii~~r~tr()ssHiajJnI'LJ(lMMBtulhrL __ - .. - --

# ~0ILerE_4555**eStimateci-Combina.c[§t8~~1~,~:cL~C:= ~fu;I~~~~21~ic;~:1l**  h Hours of OP§'f.aJrQr1...

_ 13,300

_

# i~:~~::~~ 

# ..**~~:r~~~~~C~~~:~.Ys.~~hrj** _

# ----~ __

# I~.~:r20 660
..

# esiimaled._9~~~ned Stack

# 1_~20 ..

# lb_.S!h~~~!i."1l~.rn2005**sta~k~~st, oii~!r.~1**  effl.c[.e.-
..

# ngy~

__**!~A~C§9~l!OCO_f1tr9l@Q.J"JOx e!TJs?~qE!~Jl.QtbO** **~~er** 2 

### =**25q~~timated.** 

### _g_!.?mp-'i.0ed Stack::: 5DO_I.bs/hr**eslh~~~~** 2005 stack test**contr-.9!~ff~ency**

l. averaqe uncontrolled 502 emissions (lblhr) BOller 2::: 2781 estimated, Combined Stack = 5562.51bsihr

- est! 2005 stack test control efficiency Due to a shared stack the vo!umetnc flow rate IS estimated from a pro-ratln of the totals based on individual bOIler heat Inputs Inc/vidual unities! data i no! available for these units

Due to a shared stack. the uncontrolled emisSions are estrmated fram a pn raung of the totals based on indivldu8i bOIler heat Inputs Ind[Vldual unit tas data IS not avaIlable for these units 

# I

Due to a shared stack, tne controlled emISSions are estimated from a prorating of the totals based on indIvidual bOiler heal Inputs Individual unit t8S data IS not aval!able for tnese units

The**Wl~eS[One** injection controllechnology [s a part If: !i;e operating proces of me CFB bOlier It IS not a separate "add-on" device. !JUt It does succeed i controilmg 802 emissions at me permitted control effiCiency The CFB bOIler IS a relattvely low emllter of NOx due to a lower firing temperature compared 10 standard pulvenzed coal bOIlers The unit does n however. contain any post-combustIon contrel technologIes 

### _120(JEj Title V appl'callon 12006 Title V**ap~ation -~=-.::**  

# -- -

-- Ltmestone**f~ction** 

## tDCFB**Bo~--**


### --- n/-a--- -------.--

# =~~~1~~~i~~~f~;:,::~~~'~·!~-~ _

# ~=_~-_~~~-**·I~~;~r** 2 = 2225- estimated-;Gomblnect-Slack = 445lbslhr:

# acj~~~~~~;~atiC" _un

# ":=]~~g;~~se=**1~**

Unknown 

### Boiler 2 = S100,000, Combined Stack = S200-:-aclO-----_·

____**~9_Y_earsfrom-rnstal1atJ9~__=== ,~··** **~==-** 

# .______ . _

_. __ .1 204, 

### 199**a~f!1_~ boileL-_~EProxim~§_______**  . 2006

### I.!!~_Y_~p.2ll£ation_

99%

__ __. 

### 2006**Title!\japR"~ti"-rl** 

### _

_**B_oiIer_2--=.s._6es"rn-"ted,(~oi11blned_.§tack =.J~2Ibs/hr**  

### - actual 2/1".'2005 

### _stack tesl

# =11~Bb~er**~- _~~~-~~~-~~----**  -------- n/a


# -**~;:** 

# ---= - --- - -**~-- ~f~;:**  

# --= -- -=---=-- -- - --- 

# -=- - --.:: --- -

- 80%

- - - -- - - - -- - 2006 Tllie V i3flpllc8tion

# -_1B~~ec~~st~_Comb:~ Stack

# ~iOO~SI~:ua~~**I~CEMDala** -- 

## bS02**Control_Technolcg)~-informaliOn** 

### --'. Type OiSOiCOntroiTechnOlo9Y

-- Ii-Make/Model of S02 Conlrol Technology



### -iii Year inst8Iled--
----- .. --- 

### IV Installed 

### C-c-st of (onirol DeVice 

### (5)--

___**-~;~Annuaj6peratj~,** 

## Cost- offontroL**[5"ev~~_(s1Yr}** _



### ___ VI Expected life of**equiflrn~r1t......_** 

### . _**~_ji,** Relevant sizing information =-viii

_ Deslgn 

## contrci**effici~~~'yj~L_** _ _ _

IX Averaoe Controlled 502 EmISSions (Iblhr)**_~ti9~_go~!~l~chnology!_~(~rmali~n..**



### __**i.llP!,~O:<C;ontrol** 

### TechrlOl£.9.L

_

Ii Make/Model of NOx Control Technology {it Yearlnstalled--
------ - 

### -,"lnstaTIed Cost of Conlrol DeVice 

### (sj-

--- v_ Annual**O-~r.§!!Ln..9~ost** 

## of**Con.~Q~~~e (~a~=-.**  

# __ . __

__**~~ ~~[?ected**  life**,!~guipmen~** _



### _**~B~l~vai't** sizing**j~oI!:Datjo,!-.** _ viii Design control efficiency (O/eL 

### IX-**~~g-et...Sl_I1~rpjl~~~Ox _~mis~!ons**  

### llb/hO**~, ExistiJ'R"-~lIution** **Control~llipment_** 

### a PM COf1trol T**echnOlo~y** 

### Information

__

i,Type of PM**Cor1tr.~1 T_echnoio~L**  

### il Make/Model 01 PM Control Technology 

# -m-Year fnstal-led-----
----- ---



### TvTnS-talledCoslo]ConlrOlD!'vlcim

_ v Annual**Operati~g** Cost of Control**D~vice** (S/yr)**,_=-=-~_ E~ected**  life of**eq~Jp!!l~nt** -_ - --- vii

_**Rel~vanl** sizing inforrl}8tlon·**-~- YJll~-]§~rgn** **cg!!!~J efficiencil~f·**  _**[X_!'-_':~~.9~f9i1lrElle~_~** __**~rnisslons_ {~!!:n_** 



### 4. Fuel Information

his! -E""h TYP"-2I£;iijJseci-- Amount Of f.1.:l_?1**U~~t!Q!1_s) fi§.a~n9..'Ialue~F_LJe.L@UIlb)**  

# . _==\I:OI<e

# !~o..k.er G.as
.

# -~**-----~--** --- 

# li---------

__

### .J24}.5.o.lCnS/.2.-"~10 to.n.S.p"-,--bcJiler _. __ .--- 

## 2.QQ7iuei use -:-_]145001306 

# ===-= -=--=-=-= ---- -=----=-__=_ ttlJiC8Duel an"Jysis. -·- .. --------1 rue' use was evenly split behNeen the h.·/e bOIlers

_**Maxim~Olf.uel F!_~** **Rat~ (ton!t1~L.**  _fu!Ifui_.Q.ontent**oLf~~ i!~)**  

## v.yt.) 

# .-J.
------ -----**--------~ _._~_** **~.?_L~ T.9Q.~r**  130 T**o~lhfj~er** boiler

__ 

### 6%/O.€3%**_,Iyl'ic~uel a~Xsis** **~---.r~_a.r** of**Oal~_!L~Q!.._~Q02. reas_~!lJor**  o_ot u§J09_ 2002_ 

### --.---.-- -- ------------ --I**---~--- ~007** **_!xpical"'y~ar ?Q~~:_~.E~g~~** **lxpicaIJ~_~~c_~<?r cOke~g~**  _