/'.~'t.\..'P'Y". ' ' f ' ~~f~,./ f j . ' • •

ST £ : 01' MISS 6)U,R Jeremiah W. Oay) NIXo n, Governor. Sara Parker Pauley, DIrector 

q~Pi\:R ~j: T OF NATURAL RESOURCES 

wW\v.dnr.mo.gov 

--------- ~: 

OCT 2 8 201 1 

Mr. Karl Brooks 

Regional Administrator 

U.S. EPA, Region VII 

901 North Fifth Street 

Kansas City, KS 66101 

Dear Mr. Brooks: 

The Missouri Air Conservation Commission has recently revised or promulgated the following 

air quality plan contained in the Missouri State Implementation Plan (SIP). The following is 

enclosed for your review and approval into the SIP: 

Redesignation Demonstration and Maintenance Plan for the Missouri Portion of the St. Louis 

Nonattainment Area for the 1997 8-Hour Ground-Level Ozone (03) National Ambient Air 

Quality Standard (NAAQS). 

This revision to the SIP provides the documentation to support Missouri's request that EPA 

redesignate the Missouri portion of St. Louis nonattainment area for the 1997 8-hour groundlevel ozone NAAQS to attainment. The plan demonstrates that the area has met all of the 

requirements for redesignation. This plan revision also includes the maintenance plan for the 

area, which addresses how the area will continue to comply with this NAAQS. The maintenance 

plan establishes a transportation conformity emissions budget for on-road mobile emissions of 

nitrogen oxides (NOx) and volatile organic compounds (VOC). Also included in this plan 

revision is a comprehensive 2008 base year emissions inventory (Appendix E), which was placed 

on the Web for a 30-day public comment period beginning August 8, 2011. 

The commission adopted the enclosed plan action on October 27,2011, after considering 

comments received at public hearing. The commission has full legal authority to develop the 

Missouri SIP pursuant to Section 643.050 of the Missouri Air Conservation Law. The state 

followed all applicable administrative procedures in proposing and adopting the plan action. 

Enclosed are the required SIP submittal elements for determination of plan completeness per 40 

CFR Part 51, Appendix V. 

In order to comply with Attachment A of the "Regional Consistency for the Administrative 

Requirements of State Implementation Plan Submittals and the Use of 'Letter Notices'" memo 

dated April 6, 2011 , a searchable pdf version of this document will be emailed to the EPA 

Regional Office and will be posted on our website at http://dnr.mo.gov/env/apcp/stateplans.htm. 

o !{'-'i:) l'll-d PnPfr 
Mr. Karl Brooks 

Page Two 

Also, due to their size, the appendices ofthis document have been submitted via disk(s) that have 

been included with the paper copy ofthe main document ofthis SIP revision. 

Thank you for your attention to this matter. If you have any questions regarding this submittal, 

please contact Ms. Wendy Vit with the Missouri Department of Natural Resources' Air Pollution 

Control Program at P.O. Box 176, Jefferson City, MO 65102 or by telephone at (573) 751-4817. 

Sincerely, 

AIR POLLUTION CONTROL PROGRAM 

K~or;;~~ Director 

KLM:mlc 

Enclosures: 

Copy of plan (appendices on disk(s)) 

Copy of commission signature page certifying Missouri Air Conservation Commission adoption 

Copy of public hearing newspaper notice 

Copy of public hearing transcript introductory statement 

Copy of public comments and responses 

Copy of the Webpage posting the Comprehensive 2008 Base Year Inventory for public notice 

c: Missouri Air Conservation Commission 
Pursuant to 643.055 RSMo, the Missouri Air Conservation Commission has 

determined that this action is needed to have a U.S. Environmental Protection 

Agency approved State Implementation Plan. 

The Redesignation Demonstration and Maintenance Plan for the Missouri Portion 

of the St. Louis Nonattainment Area for the 1997 8-Hour Ground-Level Ozone 

National Ambient Air Quality Standard is hereby adopted by the Missouri Air 

Conservation Commission this 27th day of October, 2011. 

Commissioners participating by phone are included on the attached signature 

sheet. 

__________________________________ ,Chairman 

~ , Vice Chairman 

.--;~7~\\;OJ,..........,f---...L P-..:.....!:== =----, Member 


;:/) . . /l ~~_ __ __ ______ __ ~-----------,Member

__________________________________,Member 

__________________________________ ,Merrlber 

__________________________________,Member 

Page 1 of2 
The Redesignation 

of the St. 

Standard is hereby adopted by the Missouri Air 

Conservation "-'V'HUU,I,.:l''''".,JlJl day 

Environmental Protection 

Missouri Air Conservation Commission has 

Maintenance Plan for Missouri Portion 

1997 8-Hour Ground-Level Ozone 

October, 201 L 

The following Commissioner( s) participated by phone: 

_________________________________,Chairman 

Vice Chairman 

---------------------------------, 

_________________________________,Member 

_________________________________,Member 

_________________________________,Member 

Page 2 of2 
------------------

PUBL'ISH R'S AFFID VIT 


OF MISSOURI,) 


)8S. 


COUNTY OF COLE) 


Mike Vivion being duly sworn, according to law, he is Vice President 

a 

. that 


Missouri Newspapers, Inc., Publisher of the News Tribune, 


published in the County of Cole, State 


published continuously more than years; 


said paper in compliance with the provisions of Section 493.050 

R.S. of Mo. For 2000 as amended for ___1_t_im_e___ as follows: 

1st No. August 11 day 

2nd insertion, No. day of 

3

rd No. day of 

4th . No. day of 

5

th No. 

$237.50 Fee: 

25th Subscribed and sworn to before me this 

dayof_______A_u_gu_s_t________ 11 

Notary Public, 2013 

My as Notary 
M

ISSOURI AIR CO I~ ER ATI ON 

COMMISSION 

WILL HOLD PUBLIC HEAR

ING 

JEFFERSON CITY, MO -- The 

Missouri Air Conservation Commission 

will holq a public hearing on the 

New 

Source Performance Regulations, 

Maximum Achievable Control 

Technology Regulations, Emiss

ion 

Standard s for Hazardous Air 

Pollutants, and the Maintenance Plan 

for the SI. l 

ouis Ozone Nonattainment Area on Thursday, September 

29, 2011 . The Public Hearing will 

begin at 9 

a.m. at the Holiday tnn 

Southeast, Gr

and Ballroom A, B, and 

C, 9103 East 39th Street, 

Kansas 

City, Missouri. The commission 

will 

hear testimony related to the 

! following item(s). 

I · 	 10 CSR 10-6070 (amendment) 

New Source Perform

ance Regula­

tions 

This proposed amendment will adopt new emission standards, updates, 

and clarifications to existing federal 

rule 40 CFR 60 that were promulgated during calendar year 2010. This 

rule as a whole establishes 

acceptable design 

and performance 

! criteria for specified new or modified 

emission sources. 

10 CSR 10-6.075 (amendment) 

Maximum Achievable Control 

Technology Regulations 

This proposed amendment will adopt 

new emission standards, updates, 

I and clarifications to existing federal 

; rule 40 CFR 63 that were promulgatI ed during calendar year 2010. This 

rule as a wh

ole establishes emission 

. control 

technology, performance 

criteria, and work practices to 

achieve emission standards for sources that emit, or have the 

potential to emit, hazardous air 

pollutants, 

10 CSR 10-6.080 (amendment) 

Emission Standards for Haz

ard­

ous Air Pollutants 

This proposed amendment will adopt 

, new emission standards, updates, 

and clarifications to existing federal 

rule 40 CFR 61 that were promUlgated during calendar year 2010. This 

rule as a whole establishes emission 

standards and performance criteria 

for new or modified sources emitting 

hazardous air pollutants. ' Redesignation Demonstration' 

and Maintenance Plan for the 

Missouri Portion of the SI. 

Louis 

Nonattainment Area for the 19

97 

8-Hour Ground-level Ozone 

National Ambient Air Quality Standard (NAAQS) . 

On April 

30, 2004, the U, S, Enviror]­

mental Protection 

Agency (EPA) 

I 'designated ·the Missouri counties pf ' I Franklin, Jefferson, SI. Charles, and 

I SI. Louis along with the City of SI. 

Louis as a nonallainment area for the' 

1997 8-Hour Ozone NAAQS.' 

Monitoring data shows that violation.s 

of the standard are no longer 

occurring within the SI. Louis region, 

Monitors located in the SI. Louis 

: metro

politan area have recorded " 

j three years of complete, quaf.i!Y .'. 

assured ambient air qual ty~ 

monitoring data for 2008-201j),' . 

demonstrating attainment with ttie.. 

ozone NAAQS, Now that the area has' 

attained the standard, a redesign~- J 

. tion request a~d in te na~ce P.~2 , for the SI. loUiS area IS being ub~ : 

milled to EPA to redesignate the;. 

affected area to attainment for this, 

NAAQS. 

Documents for the above item(s) will I 

be available for review at the Missouri Department of Natural Re- I 

sources, Air Pollution Control Program, 1659 Elm Street, Jefferson City, (573) 751 -4817 and in the Public Notices section of the program web 

site www.dnr.mo.gov/env/apcp/in· 

dex

.html. This information will be 

available at least 30 days prior to the 

: public hearing date

.

IPersons with disabilities requiring 

. special services or accommodations 

to attend the meeting can make 

arrangements by calling the Department directly at (573) 526-4679, the Department's toll free number at 

(800) 334-6946, or by writing two 

weeks in advance of the meeting to: 

Missouri Department of Natural Re

- ; 

sources, Air Con

servation Commission Secretary, P.O. Box 176, Jeffer­ son City, MO 65102. Hearing 

impaired persons may contact the 

program through Relay Missouri, ~ 

(800) 735-2966. . 

The commission holds public 

hearings under the provisions of 

chapter 643, RSMo. Citizens wishing 

to speak at the public 

hearing should 

notify the secretary to the Mi

ssouri 

Air Conservation Commi

ssion, Missouri Department of Natural Re­ sources, Air Pollution Control piogram, P.O. Box 176, Jefferson City, 

Missouri 65102-0176, .or telephone 

(573) 526-4679. The Department requests persons intending to give verbal presentations also provide '8, 

written copy of their testimony to the. 

commission secretary at · the time of 

the public hearing: The Department. 

also will accept written or email comments for the record until 5 p.m. on' 

October 6, 2011 ; please send written ' 

comments to Chief, Air Quality 

Planning Section, Air PollutiQ.h, 

Control Program, P.O. Box 176

;' 

Jefferson City, MO 65102

-0176: , 

Email comments regarding rule ac-. 

tions shall be sent to 

apcprulespn@dnr.mo.gov and emaH 

comments regarding plan actio'iis 

shall . be sent to' 

, apcpsip@dnr.mo.gov. All written Sind

.' 

email comments and public hearing 

testimony will 

be equally considered. ..

IPublic hearing items may be adopted_ 

by the Missouri Air Conservation : 

Commission as provided for unc;fer 

authority of 643,050, RSMo, For mor~ " 

information or a complete meetirlg :~ 

agenda, incfuding items being pre ,~ 

sented for adoption, contact the Mis; : 

souri Department of Natural Re- ' 

sources' Air Pollution Control " 

Program at (573) 751-4817. .'::" 

N.T. August 24, 2011 

.";';':

ofi 
PUBLIC HEARING 912912011 

Page 1 

STATE OF SSOURI 


2 DEPARTMENT OF NATURAL RESOURCES 


3 MISSOURI AIR CONS COMMISSION 


4 

5 


6 PUBLIC HEARING 


7 


8 9, 20 


o 

HoI Inn Southeast 

12 Grand Ballroom, A, B & C 

3 9103 East 39th Street 

14 Kansas Ci I MO 64133 

17 Mr. Mark S. Garnett, Chairman 

18 Mr. Gary 

19 Mr. Jack Baker 

20 Mr. Ron Boyer 

21 COMJvlISSIONERS 

Ms. Moore, tor 

Mr. David S. Imore, Assistant 

25 STAFF 

MIDWEST LITIGATION SERVICES 

www.midwestlitigation.com Pl1olle: 1.800.280.3376 Fax: 314.644.1334 
5 

10 

15 

20 

25 

PUBLIC HEARING 9129/2011 

Page 3 

1 ITEM C - PUBLIC HEARING 

2 (Starting time of the Hearing: 9:00 

3 a.m.) 

4 CHAIRMAN GARNETT: The Hearing will come 

to order. Let the record show the following 

6 Commissioners are present: Mark Garnett, Jack 

7 Baker, Gary Pende rgrass and Ron Boyer. 

8 The Air Conservation Commission for the 

9 State of Missouri has called this Public Hearing 

pursuant to Section 643.070, Revised Statutes of 

11 Missouri, EPA Promulgated Rule 40 CFR 51.102 for 

12 the purpose of hearing testimony relating to 10 CSR 

13 10-6.070 New Source Performance Regulations, 10 CSR 

14 10- 6 .075 Maximum Achievable Control Technology 

Regulations, 10 CSR 10-6.080 Emission Standards for 

16 Hazardous Air Pollutants. 

17 Missouri State Imp lementation Plan -

18 Rede s ignation Demonstration and Maint ena nce Plan' 

19 fo r the Missouri Portion o f the St. Louis 

Nonat t ai nment Area for the 1997 8-Hour Ground-Leve l 

21 Ozone National Ambient Air quality Standard. 

22 The Hearing record will close at 5 p.m., 

23 Octobe r 6th, 2011. Anyone who has not been 

24 available to appear but they wish to be heard 

should indi cate that you wish to speak on the signMIDWEST LITIGATION SERVICES 


www.midwestJitigation.com Phone: 1.800.280.3376 Fax: 314.644.1334 

5 

10 

15 

20 

25 

PUBLIC HEARING 9/2912011 

1 

2 

3 

4 

6 

7 

8 

9 

11 

12 

13 

14 

16 

17 

18 

19 

21 

22 

23 

24 

smaller sources that we would need to inspect, so 

it would be inspectors in the Regional Office, some 

staff in the Central Office to do - to file some 

notifications. 

We do some of that already, but the bulk 

of the work would be the inspections of those 

sources. The gas stations, for example, I think 

there are several thousand, but then we would have 

to add the out of state - outside of St. Louis that 

we don't already inspect. 

COMMISSIONER PENDERGRASS: Alright, 

thanks. 

CHAIRMAN GARNETT: Mark Leath? 

(WHEREIN, the Witness Mark Leath was 

duly sworn by the Court Reporter.) 

MR . MARK LEATH: Good morning Cha irman , 

Members of the Commi ssion, my name is Ma rk Lea th. 

I am employed wi th the Air Po l lution Control 

Program a s an Environmen t a l Engineer . I work at 

1659 East Elm Street , Je ffe rson City, Missouri . 

I am h e r e today to p resent t estimony on 

a Redesignation Demonstration and Ma intenance Pl an 

f or the Missouri Por tion of the St. Louis 

Nonatt a inment Area fo r t he 1997 Ground- Level Ozone 

Nati ona l Ambi e n t Air Qua l ity Standard , or NAAQS . 

Page 10 

MIDWEST LITIGATION SERVICES 


www.midwestlitigation.com Phone: 1.800.280.3376 Fax: 314.644.1334 

COMMENTS AND RESPONSES 


AND 


RECOMMENDATION FOR ADOPTION 


PROPOSED REVISION TO 


THE MISSOURI STATE IMPLEMENTATION PLAN­


REDESGINATION DEMONSTRATION AND MAINTENANCE PLAN FOR THE 


MISSOURI PORTION OF THE LOUIS NONATTAINMENT AREA FOR THE 


1997 OZONE (03) 


NATIONAL AMBIENT AIR QUALITY STANDARD 


On U,",,.ILvU Missouri Air Conservation Commission 

to the Missouri 

Redesignation Demonstration and Maintenance Plan Missouri 

Nonattainment for the 1997 8-Hour Ground-Level Ozone National 

Standard (NAAQS). The following is a 

implementation plim are identified in the reS1

ponises 

Missouri Department ofNatural Resources' Air Pollution Control Program the 

commission adopt the plan action as amended. If the commission plan 

be intention to submit to Protection Agency 

Missouri Implementation Plan. 

SUMMARY OF COMMENTS: The Department received six (6) comments, all from the U.S. 

Environmental Protection (EPA). 

COMMENT # 1: EPA commented that portion document 

compliance with requirements for Reasonably Available Control Technology 

include additional language regards to the NOx waiver for the 1997 8-hour ozone standard that 

was finalized by for the Louis area. commented that it should be noted that no 

comments were we the In 

document. They also provided suggested language could be 

RESPONSE AND EXPLANATION OF CHANGE: The department appreciates the 

cooperation in commenting on this redesignation request and maintenance plan. portion of 

that the fulfillment the requirements has been to 

UF;~';,,";:)l,,"U language in regards to NOx 

COMMENT #2: commented that on 29 of the document, the department discusses 

adopted and submitted to EPA to the RACT 

(CTGs). They 

these been formally aOCIPt<::o 

in the SIP, and that the 4th rule, 10-5 is currently bcing amended and will 

through the public hearing/adoption process is expected to be sent to for approval in 

April 2012. 
RESPONSE AND EXPLANATION OF CHANGE: The plan has been revised to clarify that 

only 3 of the 4 CTGs listed in that section of the document have been submitted to EPA, and it 

outlines the anticipated schedule for the adoption and submittal of 10 CSR 10-5.455 to EPA. 

Due to the similar nature of the next two comments, one (1) response follows this group of two 

(2) comments: 

COMMENT #3: EPA commented that on page 43 of the document in Table 7.2 Contingency 

Measures, the reference to future federal control measures should be removed from the 

contingency measures table and simply discussed in the narrative section instead. 

COMMENT #4: EPA commented that on page 43 of the document in Table 7.2 Contingency 

Measures, the potential contingency measure "more stringent controls for local sources to be 

required on days that are conducive to ozone formation" be removed from the contingency 

measures table and simply discussed in the narrative section instead. 

RESPONSE AND EXPLANATION OF CHANGE: In response to this comment, the plan has 

been revised by removing these contingency measure options from Table 7.2 and instead 

includes a discussion of them in the narrative portion of Section 7 of the plan. 

COMMENT #5: EPA commented that the method the department used to calculate the daily 

ozone season emissions from the annual emissions inventory should be explained in further 

detail in Section 4 of the document. 

RESPONSE AND EXPLANATION OF CHANGE: As a result of this comment, language that 

explains the method of calculating the ozone season daily emissions from the annual emissions 

inventory has been added to Section 4 of the document. A more detailed discussion of the 

method used to calculate ozone season day emissions can be found in Appendix E. 

COMMENT #6: EPA commented that on page 35, Section 5.1, the percentage of emission 

reductions that are expected to result from mobile source controls between 2008 and 2022 should 

be compared to the overall emission inventory rather than just the mobile source portion in order 

to better clarify the impact that these controls are expected to have on the overall inventory. 

RESPONSE AND EXPLANATION OF CHANGE: As a result of this comment, and in order to 

provide additional clarity and simplicity for EPA's review of this plan, the plan has been revised 

so that the percentage of emission reductions expected from mobile source controls between 

2008 and 2022 are now compared to the entire emissions inventory in Section 5.1 of the 

document. 
.~ State Plan Actions on Public Notice - DNR Page 1 of 4 

Jay Nixon, Governor 

Sara Parker Pauley, Director 

Air Pollution Control Program 

State Plan Actions 

On Public Notice I Proposed for Adoption 

On Public Notice 

The following proposed state plan actions are on public notice and comments are being 

accepted through the closing dates listed below. 

2008 Base Year Emissions Inventory for the Missouri Portion of the St. Lo'uis Ozone 

Nonattainment Area 

Appendix A - List of Statewide Point Source Annual Emissions by Facility 

Appendix B - List of Onroad Annual Emissions by SCC for FrankUn and Jefferson 

Counties 

Appendix C - List of Onroad Annual Emissions by SCC for St. Charles and St. Louis 

Counties and St. Louis City 

Appendix D - 2008 Nonroad Inventory Documentation 

Appendix E - Nonroad Ozone Season Day Emissions by SCC 

Appendix F - Nonpoint ICI Combustion Methodology 

Appendix G - Temporal Allocation 

Appendix H - EIQ Forms 

In accordance with Section 172(c)(3) of the Clean Air Act, the Missouri Department of 


Natural Resources' Air Pollution Control Program has developed a comprehensive, 


accurate, current inventory of actual emissions from all sources of the relevant 


pollutants in the Missouri Portion of the St. Louis Ozone Nonattainment Area for the 


1997 8-hour ozone standard. This 2008 Base Year Emissions Inventory provides 


average ozone season day (050) emissions in tons for ozone precursors: volatile 


organic compounds, carbon monoxide, and nitrogen oxides. 


This information will be on Public Notice for thirty (30) days beginning on August 8, 


2011 and ending at the close of business on September 7, 2011. Written comments on 


this inventory should be sent to the attention of Wendy Vit, Air Quality Planning 


Section Chief at P.O. Box 176, Jefferson City, MO 65102-0176 or emailed to 


apcpsip@dnr.mo.gov. 


http://dnr.mo.gov/env/apcp/stateplanrevisions.htm 8/812011
State Plan Actions on Public Notice - DNR Page 2 of 4 

A public hearing will be set at the request of any interested party. Any requests for a 

public hearing should be sent to the attention of Wendy Vit, at the above address or 

by fax to (573) 751-2706 and must be received by noon, August 29, 2011 

2008 Base Year Emissions Inventory for the Missouri Portion of the St. Louis Fine Particulate 

Matter (PM2.5) Nonattainment Area 

Appendix A - Point Source Emissions by Facility 

Appendix B - Onroad Emissions for Franklin and Jefferson Counties 

Appendix C - Onroad Emissions for st. Charles and St. Louis Counties and St. Louis City 

Appendix D - Nonroad Inventory Documentation 

Appendix E - Nonroad Emissions 

Appendix F - Nonpoint IndustriaL and CommerciaL/InstitutionaL FueL Combustion 

MethodoLogy 

In accordance with Section 172(c)(3) of the CLean Air Act, the Missouri Department of 

NaturaL Resources Air Pollution ControL Program has deveLoped a comprehensive, 

accurate, current inventory of actuaL emissions from aLL sources of the reLevant 

pollutants in the Missouri Portion of the St. Louis fine particulate matter (PM2.5) 

Nonattainment Area for the 1997 annuaL PM2.5 standard. In order to make this 2008 

Base Year Emissions Inventory potentially applicabLe for other future needs, it 

includes emissions per year for all of the following pollutants: carbon monoxide, 

ammonia, oxides of nitrogen, PM10, PM2.5, sulfur dioxide and volatile organic 

compounds. 

This information will be on Public Notice for 30 days beginning on July 13, 2011 and 

ending at the close of business on Aug. 12, 2011. Written comments on this inventory 

should be sent to the attention of Wendy Vit, Air Quality Planning Section Chief at 

P.O. Box 176, Jefferson City, MO 65102-0176 or emailedtoapcpsip@dnr.mo.gov. 

A public hearing will be set at the request of any interested party. Any requests for a 

public hearing should be sent to the attention of Wendy Vit, at the above address or 

byJax to 573-751-2706 and must be received by noon, Aug. 2, 2011. 

Back to top 

Proposed for Adoption 

2010 1-Hour Sulfur Dioxide Boundary Designation Recommendation 

http://dnr.mo.goy/eny/apcp/stateplanreYisions. htm 8/8/2011 
~ 

State Plan Actions on Public Notice - DNR Page 3 of4 

In June 2010, the U.S. Environmental Protection Agency issued a revision to the 

National Ambient Air Quality Standard for sulfur dioxide of 75 parts per billion 

measured over one hour. Release of this standard started a time clock with a 

deadline of June 2011 for the governor of the State of Missouri to submit a 

recommendation to EPA as to which areas of the state should be designated as 

non attainment for the new sulfur dioxide standard. Portions of Greene, Jackson, and 

Jefferson counties are recommended as nonattainment for this standard. Comments 

were accepted through May 5, 2011. The department did not receive any comments. 

2010 1-Hour Sulfur Dioxide Boundary Designation Recommendation and Technical 

Support Document 

Missouri State Implementation Plan -- The Doe Run Company Herculaneum Facility -­

Modification to Consent Judgment 

As part of the Consent Judgment entered into by Missouri Department of Natural 

Resources and The Doe Run :Company, the provision entitled "Fence I.ine to Preclude 

Public Access" includes a statement that Doe Run will not construct any new lead 

emission sources between the existing fence line and any new fence line. The 

purpose of this revision is to modify this statement to allow for the construction of a 

new lead technological process, but continue to restrict the construction of 

traditional pyrometallurgical lead processes within this area. Comments were 

accepted through May 5, 2011. The department did not receive any comments. 

Proposed Revision to the Missouri State Implementation Plan: Reasonably Available Control 

Technology Demonstration Update for the 1997 8-Hour Ozone Standard St. Louis 

Nonattainment Area 

The Missouri Department of Natural Resources' Air Pollution Control Program is 

proposing to amend the Missouri State Implementation Plan. This proposed change to 

the State Implementation Plan is an update to the 2006 Reasonably Available Control 

Technology demonstration and certifies that current rules, including those proposed 

for amendment, fulfill the Reasonably Available Control Technology requirements for 

aU applicable sources of ozone precursors in the Missouri'portion of the St. Louis 

ozone nonattainment area under the 1997 8-hour ozone National Ambient Air Quality 

Standards. Comments were accepted through April 7, 2011. 

Comments were received on the proposed revision to the Missouri State 

Implementation Plan. Below is a summary of the comments and responses and the 

revised document that will be presented for adoption at the April 28, 2011 Missouri 

Air Conservation Commission meeting. 

Comments Received and Responses 

Reasonably Available Control Technology Demonstration Update for the 1997 8-Hour 

Ozone Standard St. Louis Nonattainment Area 

http://dnr.mo.gov/env/apcp/stateplanrevisions.htm 8/812011
~~~~~~-

State Plan Actions on Public Notice - DNR Page 4 of 4 


Back to top 

http://dnr.mo.gov/env/apcp/stateplanrevisions.htm 8/8/2011