STATE OF W i\!-;HINOTON DEPARTMENT OFECOLOGY

lN TI-11': MATTER OF AN ADMINISTRATIVE ORDER AGAINST: TransAlta Centralia Generation LLC

TO: Mr. BobNelson, TransAlta Centralia Generation I,I,C 913 Big Ihmatord Road Centralia, W A 9853I 

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### ____] FIRST REVISION: ORDERNO. 6426

'his is an Administrative Order requiring your company to comply with WAC 173-400-151 by tal< 'theactions thnt arc descrihcd below. Chapter70.94 RCW authorizes the Washington State nutmcnt ofEcology's Air Quality Program (Ecology) to issue Administrative Ore!· I'Cl(llirc c 1pliancc with the requirements ofChapter 70.94 RCW ami regulations issucc implement i . Ecology has detern ·1cd that portions ofyom titcility arc subject to the provisi softhe state visibility protection pt >nun (WAC I73-400-151), which is implemented · tsistcnt with the requirements ofthe fedet, visibility protection program (40 erRPart , Subpart P). The rules require that the State detenn· e what technologies and level ofemis·· 

### ncontrol constitute Best Available Rctro11t Technology ART) for the eligible emission 1its nt yourfacility. The rules also require the installation and us**~f**those emission controL nthe BART-cligihlc emission units. Theemission controls arc tobC"ix1stallcd as cxpediti tsly as possible, but in no event may the State 

### allow them to start operation la ·than five y" ·s afterthe State's Regional 

### Iln:t.e SIP nmcndmcnt is approved by the United State. 11ental Protection Agency (EPA). FINJHN(;S A. TheTransAlta Centralia Generati I,C ("TrausAltt" Centralia Power Plunl is a couliired powerplant larger than 750 

### M output subject to 

### l3AR · The power plant is comprised of2 identical coal fired units ref ·eel to as BW21 and RW22. B. tolls torsulfurdioxide and particulate mat ·were determined by the Environmental Pr ection Agency in 2003. The Centralia Power Pia incorporates tl**~ART** emission limitations determined by EPA. C. BART · nitrogen oxides at the Centralia PowerPlant is based on:

.sc ofselective noncatalytic reduction (SNCR) for nitrogen oxides control. IJse oflow NOx humers with separated and close coupled over tire air systems (nkil LNC3).

. c. Usc orusub-bituminous Powder River Basin coal orothercoal that wiII achieve similar / emission rules. Final 2011 Updates Supplement L-31Truns/\lla Centralia Generation LLC Page 2ofII**U~e** and installation ofadclitional boiler heat recovery equipment and boiler tube cl' uipmentto maximize the extraction offuel energy into boiler steam. D. RCW 80.8

. 40 was amended in 2011 (Chapter ISO, Laws of2011) addin • rccnhousc gas emiSSion rcquir ents applicable to this facility that reduce the remain' o useful life tifeach coal tired unit at the ant to npproximatcly 8and 13 yenrs, stHrtin ·omJune 201 

### t. The greenhouse gns emissio ·cquircmcnts nre:

a. 1ington passed in 20II rcquirc both coal tired units at the Centrnlia ver Plant to · nply with the greenhouse gas emission performance standard requirements ·**~evi** <Code ofWashington 80.80.040. One unit is required to comply by December 31, 0. The other unit is required to comply by DecemberJ 1, 2025. The plant ow1 ,the(, crnor's ol'licc, and environmental organizations anticipate that co iance with tlu ·equircment 

### will be accomplished by decommissioning the units. 1.>. The requirement to me' 1e greenhouse gas emission pc · rmnnce standard docs not apply if'the Depart1 nl ofEcology clcte1111ines that a slate or '·dcrnl requirement requires the ins· ation ofselective cntalytic reducti1)n for Nitrog oxides control onthe coal units. Additional · ormation and analysis is available in the DART Determination Supp01 ocumcnt ior the

. ntralia Power Plnnt, by the Washington State Department of'Ecology, Novcm (rc ·.cd April 20 I0 and May 2011); and the BART Annlysis for the Centralia Power Plant, e



### og and the BART Analysis Supplement, December2008, and supplemcnt11l information date( March 20 I0; and Chapter 180, Laws of20 11. YOU AREORDF.RRD: To install and operate in accon.lance with the following conditions: BARTEmission Limitations 

### 1. Nitrogen Oxides Emissions 

### 1.1. Starling no laterthan the dates in Condition 

### 1.1.1 and 1.1.2, emissions ofnitrogen oxides from the two coal-fired utility steam genernting units (known as BW21 ami BW22) at the Centralia Power Plant nrc limited to a maximum of: l.l.l. From the date ofissuance

## orthis Order, until 30 operating days after December ] l, 2012, the nitrogen oxides emission limitation is 0.24 lb/MMBtu,

## :w operating day rolling average, both units averaged together; including all emissions dming unit start-up and shut-down. 1.1.2. Beginning on the]lstoperating day after December JI, 2012, the nitrogen oxides emission limitation is 0.21 lb/fvliVIDtu, 30operating day rolling avernge, both units averaged together, including all emissions during unit start-up and shutdown.

F1nal 2011 Updates Supplement L-32TransAltn Centralia Generation LLC Page 3of II 1.1.3. The 30 day rolling average will be determined per Condition 7. 1.2. lkginningJanuary I, 2013, injection ofammonia orurea to control nitrogen**oxid~.:s** from 

### a spccilic hoilermust: · 1.2.1. Conuncncc when the f1uc gas at the point(s) ofinjection in the boiler has reached the minimum**~NCR** operating temperature as identi11ed by the system vendor in the system spccilic operation mununl. 1.2.2. End no sooner than the time coal is no longer introduced to the furnace ofthe boikror the t1uc gas temperatme at the injection point(s) is below the minimum SNC

### Roperating tcmpcruture. 1.3. Compliance with the nitrogen oxides emission limitation will be determined by usc ofa continuous emission monitoring system meeting the requirements of40 CFR. Part 75. 1 A. Coni used is required to be a sub-bituminouscoal from the Powder River Basin or other coal that will achieve similaremission rates. 1.5. Nitrogen**oxid~.:s** emission reduction through the usc ofSNCR will be optimized as . required in Condition 5. At the conclusion ofthe SNCRoptimization study, the nitrogen oxides emission limitation contained in Condition 1.1.2 may be revised bused on the results ofthe SNCH optimization study. 2. Ammonia emissions 2.1. Starting no later than the elate in Condition 2.2, emissions ofammonia from thu two coal-tired utility steam generating units at the Centralia Power Plant arc limited ton maximum of: 2.1.1.**~tarting** on Jnr\uary 

### 1, 2013, the ammonia emission limitation is I0pr:wts per million, dry volume (ppmdv) 30 operating day rolling average, both uuits averaged together. EXCEPTION: Dming the portion oftheoptimization study directed by Condition 5.2.3.1, the ammonia emission limi1111ion is 20 ppm<lv daily average, both units averaged together. 2.1.2. In the event that during agiven day, only oneunit operated, the averageofboth units will be tl1c calendar day average ofthe operating boiler. The emission rate ofzero for the unit that did not operate must not be included in calculating the average emissions. 2.2. Determination ofcompliance with the 30 operating day rolling average for ammonia will commence at midnight onthe end orthe 301 hoperatingday after .January I, 2013.

Final2011 Updales Supplement L-33TransAlta Centralia Generation LLC Page 4ofII 2.3. Ammonia emission resulting from the use ofSNCR will be optimized as required in Condition 5. The ammonia emission limitation contained in Condition 2.1.1 may be revised based onlhc results ofthe SNCRoptimization stucty.

Schedule for Compliance 3. Compliance with the 10 operating day rolling average nitrogen oxides limitations begin on the dates given in Condition 1.1.1 and 1.1.2. Compliance with the 30 operating day rolling average ammonia emission limitations begins on the date given in Condition 2.1. 4. Coal units BW21 and BW22 will pcnnimently cease buming coal and be decommissioned ns follows: 4.1. One coal fired unit must permanently cease burning coal no later than December 31, 2020. 4.2. The scconct coal fired unit must permanently cease burning coal no later than December 31' 2025. 4.3. Conditions 4.1 and 4.2 do not apply in the event the Department**ofl~cology** determines as arequirement ofstale or federal law or regulation that the selective catalytic reduction technology must be installed on eithercoal lin.>d unit. Nitrogen Oxides and Ammonia !{eduction Optimization 5. The operation ofthe selectivenoncatalytic reduction (SNCR) system f'or control ofnitrogen oxides will he optimized tn produce both the lowest nitrogen oxides emission rate and the lowest ammonia emission concentration possible at the same time. 5.1. The nitrogen oxides control system will be uptimized to achieve both the lowest 30 operating dny average pound nitrogen oxides/l'viMDtu emission rate and the lowest .10 day average concentration ofammonia in the 11ne gas that is reasonably achievable without significant adverse effect on mercmy capture, boilercleaning processes (nka soot blowing) or byproduct salability. 5.2. To achieve the goat ofCondition 5.1, The owner ofthcCentrnlia Power Plant will: 5.2.1. Develop an SNCR optimization plan and submit it by April10, 20 11to Ecology and the SWCAA Cor theirjoint review am\ acceptance. 5.2.1.1./\ draft optimi7ation plan will be submitted to Ecology and SWC1\A by .January 30,2013 fot· their review nnd comment. l·:cology nnd/or SWACAA will respond with written commentswithin 45 days orrccdptorthe draft optimization plan. Ifarcqw:st ror acopy orthis drall optimization plan is Final 2011 Updates Supplement L-34TransAlta Centralia Generation LLC Page 5of II received, the agency receiving the request will provide the requester acopy of the draft optimization plan. 5.2.l.2.Transi\lta will submit a final optimization planrcllccting all comments provided by Ecology and SWCAA. The plan must be submitted no later than Apri\30, 2013. The plan will be deemed to be accepted and the ownerwill inunediately implement the plan ifEcology and/ot' SWCAA do not respond by May 30, 2013. lfTransAlta, Ecology, orSWCAA receive arequest for a copy ofthe final optimization plan, the entity receiving the request will provide a copy ofthe optimization plan to the requestor. 5.2.2. The optimization plan will: 5.2.2.1. Provide lor all optimi;-ation testing to be complete and a report on the findings submitted to Ecology and SWCAA not laterthan December31, 2014. 5.2.2.2.1dentify the stmt nnd end elates ofthe optimization study. 5.2.2.3.Describe the optimization process to be followed, including: 5.2.2.3.1. The overall schedule. 5.2.2.3.2. The specific dates for each stage ofthe optimization program, especially the start and end dates ofthe testing to determine how low ofa nitrogen oxides emission rate can be achieved per condition 5.2.3.1. 5.2.2.3.3. Whethertesting \viii be done on only one boiler at ntime or both together. 5.2.2.4.Itlcntify acceptable maximum ammonia content oftly ash used for cement and gypsum used to produce wallboard, including the basis t(H' those maximums. 5.2.2.5.Identify all additional Hue gas monitoring that will be used to determine optimumurea or ammonia injection rates for maximum nitrogen oxides reduction. 5.2.2.6.Evnluatc the effect ofammonia injection on mercury captmc effectiveness, tly ash ammonia content, and gypsum product ammonia content. This includes a description ofthe sampling and analysis processes. 5.2.3. 'l11e focus ofthe optimization t)lan, is to determine : .5.2.3.I.The maximum nitrogen oxides reduction possible with anammonia emission rate ofup to 20 ppmdv, daily average, each unit individually; 5.2.3.2.Thc maximum nitrogen oxides reduction with which compliance can be reasonably achieved within an ammonia emission rate of5ppm; and 5.2.3.3.Determinc the lowest nitrogen oxides emission rate reasonably achievable that coincides with the minimum ammonia emissionrate. 5.2.3.4.The ability to achieve a nitrogen oxides emission rate oflcssthan 0.19 lb/MMbtu, 30 operating day rolling average, each unit individually.

Final 2011 Updates Supplement L-35TnmsAlta Centralia Generation LLC Page 6of ll 5 ..1. Ecology nnd SWCAA will review the optimization study report for GO dnys. At the end ofthe 60 days the two agencies will eitherrequest Trans/\Ita make changes to the report or m.:ccpt the report in writing. 5.4. Within 90 days ofreceiving written acccptnncc ofthe optimization study report by Fcology

### and SWCJ\A, the plant operations and maintenance manual(s) will'be mnendcd to include the operatingparnmetcrs rellecting the optimized mnmonia orurea injection rates developed. 5.5. Revisions to this BART Order .5.5.1. Within 30 days ofacceptance ofthe optimization study report by Ecology and SWCAA, TransAlta will submit 

### arequest to Ecology to revise the emission limits 

### in Conditions 1.1.2 and 2, 1.1 to reflect the results

## orthe optimizntion. 5.5.2. Upon receipt 

### ofthe request to revise the emission limits, orwithin 60 days of acceptance ofthe optimization report by Ecology and SWCAA, Ecology will proceed to revise the emission limitations in Conditions 1.1.2 and 2.1.1 to reflect the result'> of'the optimizntion study. Other approval conditions, including this condition, may be revised based on the finnl emission limitntions. 5.5.3. The nitrogen oxides limitalion will nothe rnised above the level in Condition 1.1.2 as it existed on the date ofisS\Jance ofthis Revised Order. 5.5.4. The ammonia limitation will no! be rniscd ubove the level in Condition 2.1.I as it existed on the elate ofissuance ofthis Revised Order. Monitoring and Recol'dl<eeping 1hqui•·cmcnts 6. Ammonia: 6. I. Ammonia emissions for compliance will be monitored by menns ofperiodic emissions testing utilizing Bny Area Air Qunlity Management District (BAAQMD) Method STI

### n or Environmental Protection Agency Conditional Test Method 027 (CTM-027). 'I he sampling point will be in the stack following the wet scrubber. Stack testing shnll occur on the following frequency: (J.l.l. Testing shall occur once each calendarquarter, with no consecutive tests less than 80 lll'more than II0 cnlendar days npnrt. 6.1.2. 1!'3 consecutive tests arc each less than the ammonia limitation, then the tcstiug fi·equcney reduces to once every 6calendar months, provided the nitrogen oxides emission limit is complied with during the test.

Final 2011 Updates Supplernenll-36TransAlta Centralia Gcncrntion LLC Page 7of II 6.1.3. If, nftcr there arc 3consecutive tests less than the ammonia limitation, the next 2 consecutive ksts are less than 50% ofthe ammonia emission limitation, then the testing frequency reduces to once annually, provitkd the nitrogen oxides emission limit is complied with during !he tests. 

### 6.1.4. Ifat any lime there is atest showing emissions above the emission limitation, then lhe testing rrcqucm.:y reverts to quarterly until the requirements in Conditions 6.1.2 and 6.1.3 me met. 6.1.5. The ammonia concentration measured during the periodic emissions testing is the 30 opernting day rolling average value used for compliance starting on the date of the completion ofthe test unlil the completion ofthe next required periodic emission tesl. 6.1.6. During the ammonia testing using BAAQMD tvlethod ST1B (or CTl\·1-027), the 30 rolling ammonia emission limit is to be treated as an hourly average for the purpose orConditions G.l. and 6.2. 6.2. Forusc <IS aroutine indicator orcompliant:c between the tests required in Condition (i, 1, ammonia emissions will be estimated. The estimate

### will be based on acalculation which uses as inputs the reagent concentration and tlow rate, acalculationormeasurement of the uncontrolled nitrogen 

### oxides rate, the continuous nitrogen oxides monitoring results measured in the stack, and otherpnrameters as necessary. 6.3. AtTransAlla's option, an ammonia continuous monitoring system may be used instead ofperiodic emissions tests. Acontinuous ammonia monitoring system used for compliance must meet the monitor location requirements contained in 40 CFR Part 60 Appendix 11, Pcrf<Jrmancc Specification l or 2, and the qunlity assurance and quality control requirements of40 CFR Part 60 Appendix Fas applicable. 7. Nitrogen oxides monitoring ant! averaging 7.I. For any hour in which coal is combusted in aunit, the owner/operatororeach unit shall calculate the hourly nitrogen oxides concentration in lb/MMBtu at the CEMS installed in accordance with the**requirement~** o1'40 CFR Part 75. The 30-day average lb/MMIHu rate is calculated by summing the hourly emissions in pounds (unit lb/MMHtu times unit heat input) from all opcrnting units and dividing that by the sum orthe hourly heat inputs in million Btul<.w all operating units. At the end ofeach boiler operating day, the owner/operatorshall calculate and record llncw 30-day rolling average emission rate in lb/MMBtu from nll valid hourly data for tbat boiler operatingday and the previous 29 successive boiler operating dnys. 7.2. ). An hourly average nitrogen oxides emission rate is valid only ifthe minimum number ofdata points, as spccilicd in 40 CFR Part 75, is acquired as necessary to calculate nitrogen oxides emissions and heat rate.

final 2011 Updates Supplement L-37TransAita Centralia Generation IJ,C l'agc 8ofII 7.3. Data reported to meet the requirements ofthis section shall not include data substituted using the missing data substitution procedures ofsubpart D of40 CFR part 75, nor shnll the data have been bins adjusted according to the procedures of40 CFR pnrt 75. 7.4. A boiler operating day is a 24-hour period between 12 midnight and the following midnight during which coal is combusted at any time in the boiler. It is no\ necessary for coal to be combustcd for the entire 24-hourperiod. S. Ammonia emission limitation compliance based on periodic slack sampling and parameter monitoring. R.I. Compliance with the ammonia emission limitntion is demonstrated by meeting the limitation**dt~ring** the stack testing pcrioJ. The average ofthe 3 discrete sampling nms will be used to determine compliancewith the <Jmmonia emission limitation until the next periodic stack testing occurs. 8.2. During each**Ill~riodic** stack test on t:ach boiler, the ummonia or urea reagent injection rate <Jnd the ammonia to nitrogen oxides ratio for each sampling nm shall be determined, recorded and reported as part ofthctesting report. 

### R.3. During plant opcration between pcl'iodic stack testing, compliance with the ammonia emission limitation will 

### be indicated by: X.J.l. Injecting <Jmmonia ormen reagent at the injection rate tor ammonia or urea reagent used dming the most recent stack sampling atthe appropriate operatingrate; and 8.3.2. Meeting the nitrogen oxides emission limit. 9. Coal Quality Monitoring 9.1. Coal nitrogen and sulfur content will be determined by taking a sampk ofthe coal from the transfer belts between the coni pile and coal silos. An alternate location that provides a sample representative ofthe coal !ired bythe boilers may be proposed to Ecology hy TnmsAltn for approval ror usc. 9.2. J\ sample ofconl ror nitrogen and sulfur content analysis will be taken allcust once per week when utlcust one coal fired hoilcr is in operation. The sample must be taken J()llowing ASTM tvfcthod D2234/D22J4M-07. 9.3. Coal nitrogen and sulfur content will be determine<.! using ASTM Method DJ 176-Sl) (us rc<1pprovcd in 2002). Note, other ASTM methods related to sample collection and preparation may need to be followed in order to pcrlonn this test.

Final 2011 Updates Supplement L-38Trans/\ItaCentralia Generation LLC Page 9of II 9.4. As an alternate to coal nitrogen ami sulfurcontent testing at the plant, certified results of testing by the coal mine operatorofcoal actually sent to the Centralia Power Plant may be used. Testing fn:quency should be no less frequent than required above.

Reporting l{cquircmcnts I0. Aletter repo1iing ofachievement ofeach compliance date in the schedule in Conditions 3 and 4 must be submitted to the Washington State Governor, Ecology, and SWCAi\ within :10 days ofachieving the milestone. II. Emissions above the emission limitations in this orderdue to mnlfunclions must, at a minimum, be documented in writing and submitted to SWCAA and Ecology with the emissions monitoring data perCondition 

### 12. Additional rccordkecpingand nolifications related to excess emissions may also be required by SWCAA or Ecology regulation. Excess emissions that TrunsAltu believes arc unavoidable must be dol:umentcd as required in WAC 173-400-107 (or section I09 alterthat section is approved into the Washington SIP) and SWC;\1\'s unavoidable excess emissions requirements. 

### 12. Emission monitoring data will be reported to Ecology and to the SWCAA. 

### 12.1. Continuous emission monitoring reports \Viii be submitted within 30 days allcr the end ofeach calendarqumicr. The reports must contain the following information: 

### 12.1.1. The 30 operating day rolling average pound nitrogen oxides/MMBtu for each operuting day in the reporting period. The 30 day rolling average nitrogen oxides emission rntc shall be reported in units orJh/MMBtu, utilizingutlc-.st 2 significant figures; 

### 12.1.2. The CLnnulutivc short tons ornitrogen oxides per unit and combined that has been emitted during the current calendar year. The cumulative tons shall be rounded to the nearest ton; 

### 12.1.3. Periodic stack testing for ammonia emissions shall be submilted within 45 clays of completion ofthe test. IfTransAlta elects to usc continuous emission monitoring of'ammonia instead of' periodic stacktesting, the quarterly report shall contain the 30 operating day rolling average ammonia concentration for both units averaged together for each operating day in the reporting period. Average ammonia com;cntrutions shall be reported in units orppmdv to 2 significant figures. 12.1.4 Foreach hour ofboileroperation, the ammonia or urea injection rate in units of' pounds ofmmnonia orurcn/hour,, the boilertcmpcratmc althe point ofinjection, injection level in usc, and the estimated ammonia emission concentration.

Fmal 2011 Updates Supplement L-39'Trnns/\lta Ctntralia Clencration LLC Page 10 of II 12.2. The emission monitoring report wi11 be sent to SWCAA nnd Ecology electronically in a 1onnat acceptable to the SWCAA. Reporting to Ecology under this condition will end Jnm1nry l, 2018. 13. Coal nitrocen :.mel .suifm content information must be submitted to SWC/\A and**Ecolo~y** within 30 days ofthe end ofeach calendarqumtcr. 13.1. Coal nitrogen and suiCur reporting must include the date each coal sample is taken, the nitrogen nnd sulfmcontent ofeach coal sample. analyzed, the average sulfur and nitrogen concentrations for the calendar quarter, and the maximum anclmininmm concentrations found during the calendarqua1ier. 13.2. Arter June 30, 2011, the report will include the rolling annual nvcrugcs ((>r nitrogen and suifm content plus the maximum and minimum concentrations in the prioryenr. 13.2.1. The weekly coni sample test results will be retained for nt least 5years and available for review by Ecology or SWCAJ\ upon request. 13.2.2. Coal qunlity reporting to**l~cology** will end the cnrlier of: 13.2.2.1. 13.2.2.2. 13.2.2.3. January I, 2018, or The decommissioning ofeitherunit BW21 or BW22, or The date monitoring ofthe lJUality ofcoal fired in units BW21 and BW22 is required by aregulation if;sucd by 1·:t>A under the authority ofSection I12 ofthe federal Clean Air Act.

Failure to comply with this Order may result in the issuance ol'civil penalties or other actions ether administrative orjudicial, to enforce the terms ofthis Order. Ecology shall enfo · he terms 'this Order only until such time as SWCAA incorporates the terms ofthc 0 · into the Centralia cr Plant's Air Operating Permit or except as provided by RCW 7 .785.



## •

• oard within 30 days orthe "date of eccipt by the Hoard during regular ofticc

• cacopy ofthis document with your Notice ofAppeal.

,erve and tile your nppcal in paper form; electronic copies arc not accepted.

Fmal 2011 Updates Supplement L-40TransAita Centralia Cicncration 1 .I.C Page 11 ofll

our appeal with the Pollution ControllTearing Board:

The Pollution C PO Box 40903 Olympia, WA 98504- 03

To serve your appeal on the D Mail appeal to: Department

## orEcology 

### Appeals Coordinator 1'0 13ox 47608 Olyrnpin, \VA 98504-7608 And send a copy ofyom appeal packet Alan Newman Department orEcology Air QualityProgram PO Box 47600 Olympia, W A98504-7 OR The Pollution Control eal'ings Board 4224-C>th AvenueS ,Rowe Six, Bldg 2 l.acey, \VA 985

Department**ofl~co)ogy** Appeals Coordinator 300 Desmond Drive SE Lacey, WJ\ 98501

Foradditional inf '111ntion, go to the**Environm~.:ntal** Hearings Office website bJ..tn.;f/w\lfw.eh .wa.gov. sand agency rules, go to the Washington Stale I.egislature website at http://**_ywl.lcg.wll.gov/Cod~F.ey.llicr..** urappeal alone will not stay the eficctiveness ofthis Order. Stay requests must be submitt 111 accordance with RCW 43.218.320. These proeedmes arc consistent with Chapter 43.21 B RCW. 

### DATED this 

## l'S_ day

### of~~. 2011 _at Olympia, Washington.

# ~**oh.;,of.~J,~~--------**

lapugcr,

# Sei(nc~~~~l Engineering Section**Dcparlm~.:nt** 

### ofEcology Air Qunlity 

### Program

Final 2011 Updates Supplement L-41