INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT 

We Protect Hoosiers and Our Environment. 

Michael R. Pence 100 North Senate Avenue 

Governor Indianapolis, Indiana 46204 

(317) 232-8603 

Thomas W Easterly Toll Free (800) 451-6027 

Commissioner www.idem.IN.gov 

Susan Hedman 

Regional Administrator 

U.S. EPA, Region 5 

77 West Jackson Boulevard 

Chicago, Illinois .60604 

Dear Ms. Hedman: 

January 30, 2013 

Re: State Implementation Plan Submittal for Indiana 

Regarding 326 lAC 1-3-4 and 326 lAC 1-4-1 (LSA 

#12-510), 2012 NAAQS Update 

Pursuant to Section 110 of the Clean Air Act and Title 13 ofthe Indiana Code, the Indiana 

Depmtment of Environmental Management (IDEM) submits an amendment to the Indiana state 

implementation plan. This amendment consists of revisions to Indiana's rules concerning the national 

ambient air quality standards (NAAQS) for nitrogen dioxide (N02), sulfur dioxide (S02), pmticulate 

matter with an aerodynamic diameter less than or equal to 2.5 microns (PM2.5) , and pmticulate matter 

with an aerodynamic diameter less than or equal to 10 microns (PM10), and the addition to Indiana's 

rules of a definition for PM25 , accomplished through one rulemaking. IDEM requests that the United 

States Environmental Protection Agency (U.S. EPA) approve 326 lAC 1-3-4 and 326 lAC 1-4-1. 

Subsections (b )(I) and (b )(5) of 326 lAC 1-3-4 have been amended to update incorporations of 

the NAAQS for N02 and S02 at 40 CFR 50. These updates are being submitted as a supplement to 

previous rulemaking LSA Document #10-495, N02 and S02 NAAQS. Subsection (b)(7) is being 

amended concerning the annual NAAQS for PM10. Subsection (b )(8) of 326 lAC 1-3-4 is also being 

amended to update the incorporation of the 2006 24-hour NAAQS for PM2.5 . Section 1 of 326 lAC 1-

4 is being amended to add a definition for PM2.5. 

This submittal consists of one (1) hard copy of the required documentation. An electronic 

version of the submittal in PDF format that is identical to the hard copy has been sent to Chris Panos at 

the U.S. EPA Region V office. In order to assist with your review of this state implementation plan 

submission, a list of supp01ting documents is attached. 

Throughout the development of these amendments to Indiana's rules concerning NAAQS for 

N02, S02, PM2.5, and PM10 and the addition to Indiana's rules of a definition for PM25, staff of the 

Office of Air Quality worked closely with your staff to ensure that any potential problems that might 

exist with this requested state implementation plan revision would be resolved. I request that U.S. 

EPA approve these modifications oflndiana's state implementation plan. If you have any questions 

regarding this submittal, please contact Mike Dalton, Rule Supp01t Section Chief, Office of Legal 

Counsel at (317) 232-8884. 

Recycled Paper (i) An Equal Opportunity Employer Please Recycle 0 
NK/rk 

Attachments: Suppmiing Documents 

cc: John Mooney, U.S. EPA Region V (no enclosures) 

Doug Aburano, U.S. EPA Region V (no enclosures) 

Steve Rosenthal, U.S. EPA Region V (no enclosures) 

Mike Dalton, IDEM (no enclosures) 

Christine Pedersen, IDEM (no enclosures) 

SIP file 
Supporting Documents 

Attachment A: Administrative Checklist ( 40 CFR 51, Appendix V) 

Attachment B: Final Rule. LSA Document #12-510(F) as published in the Indiana Register 

January 16, 2013 (DIN: 20130116-IR-326120510FRA) 

Attachment C: Signature Page 

Attachment D: Section 8 Notice, including the Notice of Public Hearing, as published in the 

Indiana Register September 12, 2012 (DIN: 20120912-IR-326120510FDA) 

Attachment E: Cetiificate of Publication 

Attachment F: Transcript of Public Hearing held on November 7, 2012 

ADMINISTRATIVE CHECKLIST (40 CFR 51, Appendix V) 

1. The submittal is accompanied by a fmmalletter of submittal Enclosed 

from the governor or his designee. 

2. Evidence that the State has adopted the plan in the State code Attachment C 

or body of regulations; or issued the pe1mit, order, consent 

agreement ("document"); in final form. 

a. Date of adoption or final issuance: November 7, 2012 

b. The effective date of the plan, if different January 16, 2013 

from the adoption/issuance date. 

3. Evidence that the State has the necessary legal authority IC 13-14-8 

under state law to adopt and implement the plan. 

4. A copy of the actual regulation or document submitted for Attachment B 

approval and incorporation by reference into the plan, 

including the following: 

a. Indication of the changes made to the existing 

approved plan, where applicable. 

b. The submittal shall be a copy of the official State 

regulation or document signed, stamped, dated by 

the appropriate state official indicating that it is fully 

enforceable by the State. Effective date shall be stated 

in the document itself. 

5. Evidence that the State followed all of the procedural 

requirements of the State's laws and constitution in 

conducting and completing the adoption/issuance of the plan. 

Attachment C 

6. Evidence that public notice was given, including date of Attachments D and E 

proof ~f publication. 

_x_Notice ofPublic Hearing and Ce1iificate ofPublication 

7. Certification that public hearings were held in accordance 

with information provided in public hearing notice. 

_x_ Transcript from Public Hearing 

8. Compilation of public comments and State's response. 

--

x Section 8 Notice 

9. Technical Suppmi Document (if source specific change). N/ A 

Attachments F 

Attachments D 

Indiana Register 

TITLE 326 AIR POLLUTION CONTROL BOARD 

Final Rule 

LSA Document #12-510(F) 

DIGEST 

Amends 326 lAC 1-3-4 concerning the national ambient air quality standards for nitrogen dioxide (NO ), 

sulfur dioxide (S02

), particulate matter with an aerodynamic diameter less than or equal to 2.5 microns (P£12 5

), 

and particulate matter with an aerodynamic diameter less than or equal to 10 microns (PM10), and 326 lAC 1"-4-1 

to add a definition for PM2

_

5

. Effective 30 days after filing with the Publisher. 

HISTORY 

Findings and Determination of the Commissioner Pursuant to IC 13-14-9-8: September 12, 2012, Indiana 

Register (DIN: 20120912-IR-326120510FDA). 

Notice of Hearing: September 12, 2012, Indiana Register (DIN: 20120912-IR-326120510PHA). 

Date of Hearing: November 7, 2012. 

326 lAC 1-3-4; 326 lAC 1-4-1 

SECTION 1. 3261AC 1-3-41S AMENDED TO READ AS FOLLOWS: 

326 lAC 1-3-4 Ambient air quality standards 

Authority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11 

Affected: IC 13-15; IC 13-17 

Sec. 4. (a) All measurements of air quality that are expressed as mass per unit volume, other than for the 

particulate matter (PM ) standards contained in subsection (b)(8) and lead (Pb) standards contained in 

subsection (b)(6), shalf-Be corrected to a reference temperature of twenty-five (25) degrees Celsius and a 

reference pressure of seven hundred sixty (760) millimeters of mercury (one thousand thirteen and two-tenths 

(1,013.2) millibars), as micrograms per cubic meter (1Jg/m3

). Measurements of PM2 5

, for purposes of comparison 

to the standards contained in subsection (b)(8), and Pb, for purposes of comparison to the standards contained in 

subsection (b)(6), shall be reported based on actual ambient air volume measured at the actual ambient 

temperature and pressure at the monitoring site during the measurement period. 

(b) Ambient air quality standards are as follows: 

(1) Sulfur oxides as sulfur dioxide (SO ) requirements are as follows: 

(A) For the primary one (1) hour amBient air quality standard, the maximum permissible ambient air quality 

level shall be seventy-five (75) parts per billion (ppb). The one (1) hour standard is attained when the three 

(3) year average of the annual ninety-ninth percentile of the daily maximum one (1) hour average 

concentration is less than or equal to seventy-five (75) ppb, as determined in accordance with 40 CFR 50, 

Appendix T* added at 7§ FR 3§§9§ 3§§97, and measured in the ambient air as SO by a reference method 

based on 40 GFR §0, AppendiJC A*, redesignated Appendb( A 2 at 7§ FR 3§§9§ or Appendb( A 1*, added at 

7§ FR 3§§93 3§§9§, 40 CFR 50, Appendix A-1* or 40 CFR 50, Appendix A-2*, or an equivalent method 

designated in accordance with 40 CFR 53*. as arnended at 7§ FR 3§§97 3§601. 

(B) For the secondary standard, the following value shall represent the maximum permissible ambient air 

quality level: one thousand three hundred (1,300) 1Jg/m3 (five-tenths (0.5) ppm) maximum three (3) hour 

concentration not to be exceeded more than once per year. The three (3) hour averages shall be 

determined from successive nonoverlapping three (3) hour blocks starting at midnight each calendar day 

and shall be rounded to one (1) decimal place (fractional parts equal to or greater than 

five-hundredths (0.05) ppm shall be rounded up). Sulfur oxides shall be measured in the ambient air 

as S02 by the reference method described in 40 CFR 50, Appendix A-1* or 40 CFR 50, Appendix A-2*, 

or by an equivalent method designated in accordance with 40 CFR 53*. To demonstrate attainment, 

the second-highest three (3) hour average must be based upon hourly data that are at least 

seventy-five percent (75%) complete in each calendar quarter. A three (3) hour block average shall 

be considered valid if: 

(i) all three (3) hourly averages for the three (3) hour period are available; or 

(ii) only one (1) or two (2) hourly averages are available, but the three (3) hour average would 

exceed the level of the standard when zeros are substituted for the missing values, subject to the 

Date: Jan 17,2013 1 :42:55PM EST DIN: 20130116-IR-326120510FRA Page 1 
Indiana Register 

rounding rule of this clause. 

In all cases, the three (3) hour block average shall be computed as the sum of the hourly averages 

divided by three (3). 

(C) S02 values may be converted to ppm using the conversion factor two thousand six hundred twenty 

(2,620) l-Jg/m3 = one (1) ppm. 

(2) Total suspended particulates (TSP) requirements are as follows: 

(A) For primary standards, the following values shall represent the maximum permissible ambient air quality 

levels: 

(i) Seventy-five (75) l-Jg/m3 annual geometric mean. 

(ii) Two hundred sixty (260) l-Jg/m3 maximum twenty-four (24) hour average concentration not to be 

exceeded more than one (1) day per year. 

(B) For secondary standards, the following value shall represent maximum permissible ambient air quality 

levels: one hundred fifty (150) l-Jg/m3 maximum twenty-four (24) hour average concentration not to be 

exceeded more than one (1) day per year. 

(3) Carbon monoxide (CO) requirements are as follows: 

(A) For primary and secondary standards, the following values shall represent the maximum permissible 

ambient air quality levels: 

(i) Ten (1 0) milligrams per cubic meter (mg/m3

) (ten thousand (1 0,000) l-Jg/m3) (nine (9) ppm) maximum 

eight (8) hour avera:Pe concentration not to be exceeded more than once per year. 

(ii) Forty (40) mg/m (forty thousand (40,000) l-Jg/m3

) (thirty-five (35) ppm) maximum one (1) hour average 

concentration not to be exceeded more than once per year. 

(B) CO values may be converted to ppm using the conversion factor one thousand one hundred forty-five 

(1, 145) l-Jg/m3 = one (1) ppm. 

(4) Ozone (03

) requirements are as follows: 

(A) For the one (1) hour ozone standards, the level of the one (1) hour primary and secondary ambient air 

quality standards for ozone measured by a reference method based on 40 CFR 50, Appendix D* and 

designated in accordance with 40 CFR 53* is twelve-hundredths (0.12) ppm (two hundred thirty-five (235) 

l-Jglm\ The standard is attained when the expected number of days per calendar year with maximum hourly 

average concentrations above twelve-hundredths (0.12) ppm (two hundred thirty-five (235) l-Jg/m3

) is equal 

to or less than one (1) as determined by 40 CFR 50, Appendix H*. 

(B) For the eight (8) hour ozone standards, the: 

(i) level of the eight (8) hour primary and secondary ambient air quality standards for ozone, measured by a 

reference method based on 40 CFR 50, Appendix D* and designated in accordance with 40 CFR 53*, is 

eight-hundredths (0.08) ppm, daily maximum eight (8) hour average; and 

(ii) eight (8) hour primary and secondary ozone ambient air quality standards are met at an ambient air 

quality monitoring site when the average of the annual fourth highest daily maximum eight (8) hour average 

ozone concentration is less than or equal to eight-hundredths (0.08) ppm as determined in accordance with 

40 CFR 50, Appendix 1*. 

(C) 0 3 values may be converted to ppm using the conversion factor one thousand nine hundred sixty-five 

(1 ,96o) l-Jg/m3 = 1.0 ppm. 

(5) Nitrogen dioxide (N02

) requirements are as follows: 

(A) For the primary one (1) hour ambient air quality standard, the maximum permissible ambient air quality 

level shall be one hundred (1 00) ppb, one (1) hour average concentration, measured in the ambient air as 

N02. The one (1) hour standard is attained when the three (3) year average of the annual ninety-eighth 

percentile of the daily maximum one ( 1) hour average concentration is less than or equal to one hundred 

(100) ppb, as determined in accordance with 40 CFR 50, Appendix S*. added at 75 FR 6532 6534. 

(B) For the annual primary and secondary standards, standard, the following value shall represent the 

maximum permissible ambient air quality level: one hundred (100) l-Jg/m3 (fifty-three thousandths (0.053) 

ppm) annual arithmetic mean average concentration in a calendar year. The annual primary standard is 

attained when the annual average concentration in a calendar year is less than or equal to fifty-three 

(53) ppb, as determined in accordance with 40 CFR 50, Appendix S* for the annual standard. 

(C) For the annual secondary standard, the following value shall represent the maximum permissible 

ambient air quality level: one hundred (100) 1Jg/m3 (fifty-three thousandths (0.053) ppm) annual 

arithmetic mean concentration in a calendar year. The secondary standard is attained when the 

annual arithmetic mean concentration in a calendar year is less than or equal to fifty-three 

thousandths (0.053) ppm, rounded to three (3) decimal places (fractional parts equal to or greater 

than five ten-thousandths (0.0005) ppm must be rounded up). To demonstrate attainment, an annual 

mean must be based upon hourly data that are at least seventy-five percent (75%) complete or upon 

data derived from manual methods that are at least seventy-five percent (75%) complete for the 

scheduled sampling days in each calendar quarter. 

tG1 (D) N02 values may be converted to ppm using the conversion factor one thousand eight hundred eighty 

Date: Jan 17,20131:42:55PM EST DIN: 20130116-IR-326120510FRA Page 2 
Indiana Register 

(1 ,880) IJg/m = one (1) ppm. 

(E) The levels of the standards shall be measured by: 

(i) a reference based on 40 CFR 50, Appendix F*; or 

(ii) an equivalent method designated in accordance with 40 CFR 53*. 

(6) Pb: For primary and secondary standards, the following value shall represent the maximum permissible 

ambient air quality level: fifteen-hundredths (0.15) 1Jg/m3

, arithmetic mean concentration over a three (3) 

month period. The standards are attained when the maximum arithmetic three (3) month mean concentration 

for a three (3) year period is less than or equal to fifteenth-hundredths (0.15) 1Jg/m3

, as determined in 

accordance with 40 CFR 50, Appendix R* and measured in the ambient air as Pb by either: 

(A) a reference method based on 40 CFR 50, Appendix G*, and designated in accordance with 40 CFR 53*; 

or 

(B) an equivalent method designated in accordance with 40 CFR 53*. 

(7) PM10: For primary and secondary standards, the follmving values shall represent the maximum permissible 

ambient air quality le>.fels7 level is 

(/\) Fifty (60) !Jg/m~annual arithmetio mean. The standards are attained when the mEpeoted annual 

arithmetio mean oonoentration, as determined in aooordanoe with 40 GFR 60, AppendbE K*, is less than or 

equal to fifty (50) ~:~glm'\ 

fB1 one hundred fifty (150) 1Jg/m3 maximum twenty-four (24) hour average concentration. The standards are 

attained when the expected number of days per calendar year with a twenty-four (24) hour average 

concentration above one hundred fifty (150) 1Jg/m3

, as determined in accordance with 40 CFR 50, Appendix 

K, * is equal to or less than one ( 1 ). 

(8) PM2 5

: For primary and secondary standards, the following values shall represent the maximum 

permissiole ambient air quality levels: 

(A) Fifteen (15) micrograms per cubic meter (1Jg/m3) annual arithmetic mean concentration. The standards 

are attained when the annual arithmetic mean concentration is less than or equal to fifteen (15) 1Jg/m3

, as 

determined in accordance with 40 CFR 50, Appendix N* and measured in the ambient air as PM2 5 by 

either: · 

(i) a reference method based on 40 CFR 50, Appendix L*, and designated in accordance with 40 CFR 53*; 

or 

(ii) an equivalent method designated in accordance with 40 CFR 53*. 

(B) SbEty five (e6) Thirty-five (35) 1Jg/m3 twenty-four (24) hour average concentration. The standards are 

attained when the ninety-eighth percentile twenty-four (24) hour concentration is less than or equal to 

silEty five (e6) thirty-five (35) micrograms per cubic meter (1-Jglm\ as determined in accordance with 40 

CFR 50, Appendix N* and measured in the ambient air as PM2 by either: 

(i) a reference method based on 40 CFR 50, Appendix L*, anffidesignated in accordance of 40 CFR 53*; or 

(ii) an equivalent method designated in accordance with 40 CFR 53*. 

*These documents are incorporated by reference. Copies may be obtained from the Government Printing 

Office, 732 North Capitol Street NW, Washington, D.C. 20401 or are available for review and copying at the 

Indiana Department of Environmental Management, Office of Air Quality, Indiana Government Center North, 

Tenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204. 

(Air Pollution Control Board; 326 lAC 1-3-4: filed Mar 10, 1988, 1:20 p.m.: 11 IR 2378; filed Apr 13, 1988, 3:35 

p.m.: 111R 3020; readopted filed Jan 10, 2001, 3:20p.m.: 241R 1477; filed May 21, 2002, 10:20 a.m.: 25/R 

3055; filed Mar 9, 2004, 3:45p.m.: 27 IR 2224; filed Dec 20, 2004, 2:15p.m.: 28 IR 1471; filed Mar 6, 2006, 3:00 

p.m.: 291R 2179; filed Sep 24, 2010, 1:44 p.m.: 20101020-IR-326100127FRA: filed Feb 9, 2011, 10:29 a.m.: 

20110309-IR-326100495FRA; filed Dec 19, 2012, 4:22p.m.: 20130116-IR-326120510FRA) 

SECTION 2. 3261AC 1-4-1 IS AMENDED TO READ AS FOLLOWS: 

Rule 4. Attainment Status Designations 

326 lAC 1-4-1 Definitions 

Authority: IC 13-14-8; IC 13-17 -3-4; IC 13-17-3-11 

Affected: IC 13-15; IC 13-17 

Sec. 1. The following definitions apply throughout this rule: 

Date: Jan 17,2013 3:19:38PM EST DIN: 20130116-IR-326120510FRA Page 3 
Indiana Register 

(1) "SO~" means sulfur dioxide. 

(2) "CO means carbon monoxide. 

(3) "0 " means ozone. 

(4) "P~ R" has the meaning set forth in 326 lAC 1-2-52.4. 

(5) "N0,2 means nitrogen dimddes. dioxide. 

(6) "Pb' means lead. 

(7) "PM2

_

5

" has the meaning set forth in 326 lAC 1-2-52.2. 

(Air Pollution Control Board; 3261AC 1-4-1: filed Mar 10, 19BB, 1:20 p.m.: 111R 2379; filed Aug 9, 1991, 11:00 

a.m.: 141R 221B; filed Dec 30, 1992, 9:00a.m.: 161R 13B2; filed Apr 1B, 1995, 3:00p.m.: 1BIR 2220; filed Oct 

22, 1997, B:45 a.m.: 211R 932; filed Apr 17, 199B, 9:00a.m.: 211R 3342; filed Apr 29, 199B, 3:15p.m.: 211R 

3341; filed May 21, 2002, 10:20 a.m.: 251R 3056; filed Nov 15, 2002, 11:17 a.m.: 261R 1077; filed Dec 1, 2003, 

10:00 a.m.: 271R 1167; filed Nov 12, 2004, 12:15 p.m.: 2BIR 11B2; filed Sep 26, 2006, 10:03 a.m.: 

20061025-IR-32606001BFRA; filed Sep 13, 2007, 1:57 p.m.: 20071010-IR-326070024FRA; filed Dec 26, 2007, 

1:43 p.m.: 200B0123-IR-32607030BFRA; filed Dec 19, 2012, 4:22p.m.: 20130116-IR-326120510FRA) 

LSA Document #12-510(F) 

Findings and Determination of the Commissioner Pursuant to IC 13-14-9-B: 20120912-IR-326120510FDA 

Hearing Held: November 7, 2012 

Approved by Attorney General: December 19, 2012 

Approved by Governor: December 19, 2012 

Filed with Publisher: December 19, 2012, 4:22p.m. 

Documents Incorporated by Reference: None Received by Publisher 

Small Business Regulatory Coordinator: Jessica Faust-Hamblin, IDEM Small Business Regulatory Coordinator, 

MC 60-041GCS W041, 100 North Senate Avenue, Indianapolis, IN 46204-2251, (317) 232-B172 or (BOO) 

9BB-7901, ctap@idem.in.gov 

Small Business Assistance Program Ombudsman: Brad Baughn, IDEM Small Business Assistance Program 

Ombudsman, MC 50-011GCN 1301, 100 North Senate Avenue, Indianapolis, IN 46204-2251, (317) 234-33B6 or 

(BOO) 451-6027, bbaughn@idem.in.gov 

Posted: 01/16/2013 by Legislative Services Agency 

An html version of this document. 

Date: Jan 17,2013 3:19:38PM EST DIN: 20130116-IR-326120510FRA Page4 
Rule Signature Page 

Rule: LSA #12-SlO(F) 

Agency: Air Pollution Control Board 

Subject: NAAQS Update 

ADOPTED~: . --

By:-~ 

Jam · e M.D. 

Chairman 

Air Pollution Control Board . · · 

APPROVED: 

By: 

ACCEPTED FOR FILING: 

By: _ TITLE 326 AIR POLLUTION CONTROL BOARD 

I1 

l LSADocument#l2-510(FR) 

Filed with Publisher: December 19, 2012,4:22 p.m. 

By:Kks 

Date: 

Date: 

)ate:, _______ _ 

Indiana Register 

TITLE 326 AIR POLLUTION CONTROL BOARD 

FINDINGS AND DETERMINATION OF THE COMMISSIONER 

PURSUANT TO IC 13-14-9-8 AND DRAFT RULE 

LSA Document #12-51 0 

DEVELOPMENT OF AMENDMENTS TO RULES CONCERNING THE NATIONAL AMBIENT AIR QUALITY 

STANDARDS FOR NITROGEN DIOXIDE, SULFUR DIOXIDE, PARTICULATE MATTER WITH AN 

AERODYNAMIC DIAMETER LESS THAN OR EQUAL TO 2.5 MICRONS, AND PARTICULATE MATTER WITH 

AN AERODYNAMIC DIAMETER LESS THAN OR EQUAL TO 10 MICRONS 

PURPOSE OF NOTICE 

The Indiana Department of Environmental Management (IDEM) has developed draft rule language for 

amendments to Indiana's rules at 326 lAC 1-3-4 concerning the national ambient air quality standards for nitrogen 

dioxide, sulfur dioxide, particulate matter with an aerodynamic diameter less than or equal to 2.5 microns, and 

particulate matter with an aerodynamic diameter less than or equal to 10 microns. IDEM is also amending 326 

lAC 1-4-1 to add a definition for particulate matter with an aerodynamic diameter less than or equal to 2.5 

microns. IDEM is soliciting written comment on the draft rule language and will schedule a public hearing before 

the Air Pollution Control Board (board) for consideration ·Of adoption of these rules. 

CITATIONS AFFECTED: 326 lAC 1-3-4; 326 lAC 1-4-1. 

AUTHORITY: IC 13-14-8; IC 13-17. 

STATUTORY REQUIREMENTS 

IC 13-14-9-8 recognizes that, under certain circumstances, it may be appropriate to reduce the number of 

public comment periods and public hearings usually provided for under the IC 13-14-9 environmental rulemaking 

process. In cases where the commissioner determines that there is no reasonably anticipated benefit from a 

second public comment period and first public hearing to either the environment or persons regulated or 

otherwise affected by the proposed rule, IDEM may forgo these comment periods and proceed directly to the 

public hearing and board meeting at which the draft rule is considered for adoption. Two opportunities for public 

comment (with this notice and at the public hearing prior to adoption of the rule) remain under this procedure. 

If the commissioner makes the determination of no anticipated benefit required by IC 13-14-9-8, the 

commissioner shall prepare written findings and publish those findings in the Indiana Register prior to the board 

meeting at which the draft rule is to be considered for adoption and include them in the board packet prepared for 

that meeting. This document constitutes the commissioner's written findings pursuant to.IC 13-14-9-8. 

The statute provides for this shortened rulemaking process if the commissioner determines that: 

(1) the rule constitutes: 

(A) an adoption or incorporation by reference of a federal law, regulation, or rule that: 

(i) is or will be applicable to Indiana; and 

(ii) contains no amendments that have a substantive effect on the scope or intended application of the 

federal law or rule; 

(B) a technical amendment with no substantive effect on an existing Indiana rule; or 

(C) an amendment to an existing Indiana rule, the primary and intended purpose of which is to clarify the 

existing rule; and 

(2) the rule is of such nature ~nd scope that there is no reasonably anticipated benefit to the environment or 

the persons referred to in IC 13-14-9-7(a)(2) from: 

(A) exposing the rule to diverse public comment under IC 13-14-9-3 or IC 13-14-9-4; 

(B) affording interested or affected parties the opportunity to be heard under IC 13-14-9-3 or IC 13-14-9-4; 

and 

(C) affording interested or affected parties the opportunity to develop evidence in the record collected 

under IC 13-14-9-3 and IC 13-14-9-4. 

BACKGROUND 

The Clean Air Act (CAA) requires the United States Environmental Protection Agency (U.S. EPA) to set 

primary and secondary National Ambient Air Quality Standards (NAAQS) for the six common air pollutants 

considered harmful to public health and the environment including lead, ground-level ozone, carbon monoxide, 

nitrogen oxides, sulfur dioxide, and particulate matter. For each of these pollutants, the CAA requires U.S. EPA to 

set health-based or "primary" standards at a level judged to be "requisite to protect the public health with an 

adequate margin of safety" and establish secondary standards that are requisite to protect public welfare from 

"any known or anticipated effects associated with the pollutant in the ambient air" including effects on crops, 

Date: Jan 22,201311:51:53AM EST DIN: 20120912-IR-326120510FDA Page 1 
Indiana Register 

vegetation, wildlife, buildings and national monuments, and visibility. The law requires U.S. EPA to review these 

standards once every five years to determine whether revisions to the standards are appropriate. 

In 2010, U.S. EPA issued a revised primary NAAQS for nitrogen dioxide (N02) in the February 9, 2010, 

Federal Register (FR) published at 75 FR 6474. N02 belongs to a family of highly reactive gases called nitrogen 

oxides. These gases form when fuel is burned at hign temperatures and come principally from motor vehicle 

exhaust and stationary fuel combustion sources such as electric utilities and industrial boilers. N02 also plays a 

major role in the atmospheric reactions that produce ground-level ozone. 

U.S. EPA first established standards for N02 in 1971, setting both a primary standard to protect health and a 

secondary standard to protect public welfare at 1 uo micrograms per cubic meter (1Jg/m3) (53 parts per billion 

(ppb)}, averaged annually. This standard was reviewed by U.S. EPA in 1985 and 1996 and was retained. U.S. 

EPA then determined that the 1971 primary annual average N02 standard of 53 ppb alone was not sufficient to 

protect public health with an adequate margin of safety. Subsequently, U.S. EPA strengthened the NAAQS for 

N02, to increase protection of public health, by adding a one-hour N02 standard at 100 ppb and retaining the 

annual average N02 standard at 53 ppb on February 9, 2010, at 75 FK 6474. The form used to determine if an 

area meets the stanaard is the three year average of the ninety-eighth percentile of the annual distribution of daily 

maximum one-hour average concentrations. 

In this rulemaking, IDEM is proposing to amend 326 lAC 1-3-4 to incorporate portions of 40 CFR 50.11 to 

update its references to the national primary and secondary ambient air quality standards for oxides of nitrogen 

(with nitrogen dioxide as the indicator). By incorporating these federal regulations, this rulemaking helps to ensure 

that state rules are consistent with federal rules. 

U.S. EPA issued a revised primary NAAQS for sulfur dioxide (S02

) in the June 22, 2010, Federal Register 

published at 75 FR 35520. S02 belongs to a group of highly reactive gases known as sulfur oxides. S02 is used 

as the indicator for the larger group of gaseous sulfur oxides. The largest sources of SO emissions are from 

fossil fuel combustion at power plants and other industrial facilities. Smaller sources of S02 emissions include 

industrial processes, such as extracting metal from ore, and the burning of high sulfur containing fuels by 

locomotives, large ships, and nonroad equipment. 

U.S. EPA first established standards for SO in 1971, setting a 24 hour primary standard at 0.14 parts per 

million (ppm) and an annual average standard af0.03 ppm (30 ppb) to protect health. U.S. EPA also set a three 

hour average secondary standard at 0.5 ppm (500 ppb) to protect public welfare. This standard was last reviewed 

by U.S. EPA in 1996 and was retained. U.S. EPA then determined that the 1971 24 hour and annual primary 

standards were not sufficient to protect public health with an adequate margin of safety. Subsequently, U.S. EPA 

strengthened the NAAQS for S02 by establishing a new one-hour standard at a level of 75 ppb on June 22, 2010, 

at 75 FR 35520, to reduce exposure to high short-term (five minutes to 24 hours) concentrations of S02

. U.S. 

EPA revoked the two existing primary standards of 140 ppb evaluated over 24 hours and 30 ppb evaluated over a 

year because they did not supplement protection of public health given a one-hour standard of 75 ppb. The form 

used to determine if an area meets the standard is the three year average of the ninety-ninth percentile of the 

annual distribution of daily maximum one-hour concentrations. The deadline for states to implement monitoring 

network revisions for the one-hour standard is January 1, 2013. 

IDEM is proposing to amend 326 lAC 1-3-4 to incorporate portions of 40 CFR 50.5 to update its references to 

the national secondary ambient air quality standard for sulfur oxides (sulfur dioxide). By incorporating these 

federal regulations, this rulemaking helps to ensure that state rules are consistent with federal rules. 

Particulate matter is the generic term for a broad class of chemically and physically diverse substances that 

exist as discrete particles, liquid droplets, or solids, over a wide range of sizes. Particles originate from a variety of 

anthropogenic stationary and mobile sources as well as from natural sources. Particles may be emitted directly or 

formed in the atmosphere by transformations of gaseous emissions such as sulfur oxides, nitrogen oxides, and 

volatile organic compounds. The chemical and physical properties of particulate matter vary greatly with time, 

region, meteorology, and source category, thus complicating the assessment of health and welfare effects. 

U.S. EPA revised the level of the 24 hour standard for particulate matter with an aerodynamic diameter less 

than or equal to 2.5 microns (PM2 5

), or fine particles, to 35 1Jg/m3 on October 17, 2006, published at 71 FR 

61144. The revised standard proviaes increased protection against health effects associated with short-term 

exposure. In the same action, U.S. EPA retain the annual PM2 5 standard at 15 1Jg/m3

. 

In this rulemaking, IDEM is proposing to revise the 24 hou·r PM2 5 standard to 35 1Jg/m3 in its rules. Revising 

the 24 hour PM2 5 standard will ensure consistency with federal regulations. 

U.S. EPA re'voked the annual secondary standard for particulate matter with an aerodynamic diameter less 

than or equal to 10 microns (PM1 ), or coarse particles, on October 17, 2006, published at 71 FR 61144. U.S. 

EPA has indicated that the availagle evidence does not suggest an association between long-term exposure to 

coarse particles at current ambient levels and detrimental health effects. In the same action, U.S. EPA retained 

the 24 hour PM10 standard at 150 1Jg/m3 to protect against the health effects associated with short-term exposure 

to coarse particles. 

In this rulemaking, IDEM is proposing to remove the annual PM10 secondary standard from its rules. 

Removing the annual PM10 secondary standard from Indiana's rules will ensure consistency with federal 

Date: Jan 22,2013 11:51 :53AM EST DIN: 20120912-IR-32612051 OFDA Page2 
Indiana Register 

regulations and will eliminate unnecessary requirements for regulated sources and IDEM. 

IDEM is also proposing to add a definition for PM2 5 to its rules concerning attainment status designations at 

326 lAC 1-4-1 for purposes of clarification. · 

IC 13-14-9-41dentification of Restrictions and Requirements Not Imposed under Federal Law 

No element of the draft rule imposes either a restriction or a requirement on persons to whom the draft rule 

applies that is not imposed under federal law. This draft rule imposes no restrictions or requirements because it is 

a direct adoption of federal requirements that are applicable to Indiana and contains no amendments that have a 

substantive effect on the scope or application of the federal rule. 

Potential Fiscal Impact 

This rulemaking will remove the annual PM10 secondary standard from Indiana's rules. This will ensure 

consistency with federal regulations and will eliminate unnecessary requirements for regulated sources and 

IDEM. Specifically, applicants for Title V and other designated air permits will be able to discontinue modeling for 

annual PM

10 as part of their air quality analysis. This will save regulated sources and IDEM extra time and cost. 

Public Participation and Workgroup Information 

At this time, no workgroup is planned for the rulemaking. If you feel that a workgroup or other informal 

discussion on the rule is appropriate, please contact Ryan Knapick, Rule and State Implementation Plan 

Development Section, Office of Air Quality at (317) 232-8229 or (800) 451-6027 (in Indiana). 

Small Business Assistance Information 

IDEM established a compliance and technical assistance (CTAP) program under IC 13-28-3. The program 

provides assistance to small businesses and information regarding compliance with environmental regulations. In 

accordance with IC 13-28-3 and IC 13-28-5, there is a small business assistance program ombudsman to provide 

a point of contact for small businesses affected by environmental regulations. Information on the CT AP program, 

the monthly CTAP newsletter, and other resources available can be found at: 

www.in.gov/idem/ctap 

For purposes of IC 4-22-2-28.1, the Small Business Regulatory Coordinator for this rule is: 

Jessica Faust-Hamblin 

IDEM Small Business Regulatory Coordinator 

MC 60-041GCS W041 

100 North Senate Avenue 

Indianapolis, IN 46204-2251 

(317) 232-8172 or (800) 988-7901 

ctap@idem.in.gov 

For purposes of IC 4-22-2-28.1, the Small Business Ombudsman designated by IC 5~28-17-5 is: 

Eric P. Shields 

Indiana Economic Development Corporation 

One North Capitol, Suite 700 

Indianapolis, IN 46204 

(317) 234-3997 

smallbizombudsman@iedc.in.gov 

Resources available to regulated entities through the small business ombudsman include the ombudsman's 

duties stated in IC 5-28-17-5, specifically IC 5-28-17-5(9), investigating and attempting to resolve any matter 

regarding compliance by a small business with a law, rule, or policy administered by a state agency, either as 

a party to a proceeding or as a mediator. 

The Small Business Assistance Program Ombudsman is: 

Brad Baughn 

IDEM Small Business Assistance Program Ombudsman 

MC 50-01 IGCN 1301 

100 North Senate Avenue 

Indianapolis, IN 46204-2251 

(317) 234-3386 or (800) 451-6027 

bbaughn@idem.in.gov 

FINDINGS 

The commissioner of IDEM has prepared findings regarding rulemaking on the ambient air quality standards 

as required by federal rule. These findings are prepared under IC 13-14-9-8 and are as follows: 

(1) This rule is the direct adoption of federal requirements that are applicable to Indiana, and it contains no 

amendments that have a substantive effect on the scope or intended application of the federal rule. 

(2) Indiana is required by federal law to adopt ambient air quality standards as established by the United 

States Environmental Protection Agency. 

(3) The environment and persons regulated or otherwise affected by the proposed rule will benefit from 

prompt adoption of this rule because it provides consistency between federal rules and the state rules 

Date: Jan 22,201311:51:53AM EST DIN: 20120912-IR-326120510FDA Page 3 
Indiana Register 

regarding the ambient air quality standards. 

(4) I have determined that, under the specific circumstances pertaining to this rule, there would be no 

reasonably anticipated benefit to the environment or to persons regulated or otherwise affected by the 

proposed rule from the first or second public written comment period under IC 13-14-9-3 or IC 13-14-9-4, or 

from the first public hearing under IC 13-14-9-5(a)(1). 

(5) The draft rule is hereby incorporated into these findings. 

Thomas W. Easterly 

Commissioner 

Indiana Department of Environmental Management 

REQUEST FOR PUBLIC COMMENTS 

This notice requests the submission of comments on the draft rule language, including suggestions for 

specific revisions to language to be contained in the draft rule. Comments may be submitted in one of the 

following ways: 

(1) By mail or common carrier to the following address: 

LSA Document #12-510 2012 NAAQS Update 

Ryan Knapick Mail Code 61-50 

Rule and State Implementation Plan Development Section 

Office of Air Quality 

Indiana Department of Environmental Management 

100 North Senate Avenue 

Indianapolis, IN 46204-2251 

(2) By facsimile to (317) 233-5967. Please confirm the timely receipt of faxed comments by calling the Rule 

and State Implementation Plan Development Section at (317) 234-6530. 

(3) By electronic mail to rknapick@idem.in.gov. To confirm timely delivery of submitted comments, please 

request a document receipt when sending the electronic mail. PLEASE NOTE: Electronic mail comments 

will NOT be considered part of the official written comment period unless they are sent to the email 

address indicated in this notice. 

(4) Hand delivered to the receptionist on duty at the tenth floor reception desk, Office of Air Quality, Indiana 

Government Center North, 100 North Senate Avenue, Indianapolis, Indiana. 

Regardless of the delivery method used, in order to properly identify each comment with the rulemaking 

action it is intended to address, each comment document must clearly specify the LSA document number of the 

rulemaking. 

COMMENT PERIOD DEADLINE 

All comments must be postmarked, faxed, or time stamped no later than October 12, 2012. Hand-delivered 

comments must be delivered to the appropriate office by 4:45 p.m. on the above-listed deadline date. 

Additional information regarding this action may be obtained from Ryan Knapick, Rule and State 

Implementation Plan Development Section, Office of Air Quality, (317) 232-8229 or (800) 451-6027 (in Indiana). 

DRAFT RULE 

SECTION 1. 3261AC 1-3-41S AMENDED TO READ AS FOLLOWS: 

326 lAC 1-3-4 Ambient air quality standards 

Authority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11 

Affected: IC 13-15; IC 13-17 

Sec. 4. (a) All measurements of air quality that are expressed as mass per unit volume, other than for the 

particulate matter (PM ) standards contained in subsection (b)(8) and lead (Pb) standards contained in 

subsection (b)(6), shalf-Be corrected to a reference temperature of twenty-five (25) degrees Celsius and a 

reference pressure of seven hundred sixty (760) millimeters of mercury (one thousand thirteen and two-tenths 

(1,013.2) millibars), as micrograms per cubic meter (IJglm\ Measurements of PM2 5, for purposes of comparison 

to the standards contained in subsection (b)(8), and Pb, for purposes of comparison to the standards contained in 

subsection (b)(6), shall be reported based on actual ambient air volume measured at the actual ambient 

temperature and pressure at the monitoring site during the measurement period. 

(b) Ambient air quality standards are as follows: 

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Indiana Register 

(1) Sulfur oxides as sulfur dioxide (SO ) requirements are as follows: . 

(A) For the primary one (1) hour am6ient air quality standard, the maximum permissible ambient air quality 

level shall be seventy-five (75) parts per billion (ppb ). The one (1) hour standard is attained when the three 

(3) year average of the annual ninety-ninth percentile of the daily maximum one (1) hour average 

concentration is less than or equal to seventy-five (75) ppb, as determined in accordance with 40 CFR 50, 

Appendix T* added at 7§ FR 3§§9§ 3§§97, and measured in the ambient air as SO by a reference method 

based on 40 GFR §0, Appendi>E /\*,redesignated /\ppendi>E /\ 2 at 7§ FR 3§§9§ or Appendix A 1*, added at 

7§ FR 3§593 35§95, 40 CFR 50, Appendix A-1* or 40 CFR 50, Appendix A-2*, or an equivalent method 

designated in accordance with 40 CFR 53*. as arnended at 75 FR 35597 35e01. 

(B) For the secondary standard, the following value shall represent the maximum permissible ambient air 

quality level: one thousand three hundred (1,300) 1-19lm3 (five-tenths (0.5) ppm) maximum three (3) hour 

concentration not to be exceeded more than once per year. The three (3) hour averages shall be 

determined from successive nonoverlapping three (3) hour blocks starting at midnight each calendar day 

and shall be rounded to one (1) decimal place (fractional parts equal to or greater than 

five-hundredths (0.05) ppm shall be rounded up). Sulfur oxides shall be measured in the ambient air 

as 502 by the reference method described in 40 CFR 50, Appendix A-1* or 40 CFR 50, Appendix A-2*, 

or by an equivalent method designated in accordance with 40 CFR 53*. To demonstrate attainment, 

the second-highest three (3) hour average must be based upon hourly data that are at least 

seventy-five percent (75%) complete in each calendar quarter. A three (3) hour block average shall 

be considered valid if: 

(i) all three (3) hourly averages for the three (3) hour period are available; or 

(ii) only one (1) or two (2) hourly averages are available, but the three (3) hour average would 

exceed the level of the standard when zeros are substituted for the missing values, subject to the · 

rounding rule of this clause. 

In all cases, the three (3) hour block average shall be computed as the sum of the hourly averages 

divided by three (3). 

(C) S02 values may be converted to ppm using the conversion factor two thousand six hundred twenty 

(2,620) 1-19lm3 = one (1) ppm. 

(2) Total suspended particulates {TSP) requirements are as follows: 

(A) For primary standards, the following values shall represent the maximum permissible ambient air quality 

levels: 

(i) Seventy-five (75) 1-1glm3 annual geometric mean. 

(ii) Two hundred sixty (260) 1-1glm3 maximum twenty-four (24) hour average concentration not to be 

exceeded more than one (1) day per year. 

(B) For secondary standards, the following value shall represent maximum permissible ambient air quality 

levels: one hundred fifty ( 150) 1-19lm3 maximum twenty-four (24) hour average concentration not to be 

exceeded more than one (1) day per year. 

(3) Carbon monoxide (CO) requirements are as follows: 

(A) For primary and secondary standards, the following values shall represent the maximum permissible 

ambient air quality levels: 

(i) Ten (1 0) milligrams per cubic meter (mglm3

) (ten thousand (1 0,000) 1-1glm3) (nine (9) ppm) maximum 

eight (8) hour avera:fle concentration not to be exceeded more than once per year. 

(ii) Forty (40) mglm (forty thousand (40,000) 1-1glm3

) {thirty-five {35) ppm) maximum one (1) hour average 

concentration not to be exceeded more than once per year. 

(B) CO values may be converted to ppm using the conversion factor one thousand one hundred forty-five 

(1,145) !-191m3 = one (1) ppm. · 

(4) Ozone (03

) requirements are as follows: · 

(A) For the one (1) hour ozone standards, the level of the one (1) hour primary and secondary ambient air 

quality standards for ozone measured by a reference method based on 40 CFR 50, AppendixD* and 

designated in accordance with 40 CFR 53* is twelve-hundredths {0.12) ppm (two hundred thirty-five (235) 

1-1glm\ The standard is attained when the expected number of days per calendar year with maximum hourly 

average concentrations above twelve-hundredths (0.12) ppm (two hundred thirty-five (235) 1-1glm3

) is equal 

to or less than one (1) as determined by 40 CFR 50, Appendix H*. 

(B) For the eight (8) hour ozone standards, the: 

(i) level of the eight (8) hour primary and secondary ambient air quality standards for ozone, measured by a 

reference method based on 40 CFR 50, Appendix D* and designated in accordance with 40 CFR 53*, is 

eight-hundredths (0.08) ppm, daily maximum eight (8) hour average; and 

(ii) eight (8) hour primary and secondary ozone ambient air quality standards are met at an ambient air 

quality monitoring site when the average of the annual fourth highest daily maximum eight (8) hour average 

ozone concentration is less than or equal to eight-hundredths (0.08) ppm as determined in accordance with 

40 CFR 50, Appendix 1*. 

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Indiana Register 

(C) 0 3 values may be converted to ppm using the conversion factor one thousand nine hundred sixty-five 

(1,96o) 1Jg/m3 = 1.0 ppm. 

(5) Nitrogen dioxide (N02

) requirements are as follows: . · 

(A) For the primary one (1) hour ambient air quality standard, the maximum permissible ambient air quality 

level shall be one hundred (1 00) ppb, one (1) hour average concentration, measured in the ambient air as 

N02. The one (1) hour standard is attained when the three (3) year average of the annual ninety-eighth 

percentile of the daily maximum one (1) hour average concentration is less than or equal to one hundred 

(1 00) ppb, as determined in accordance with 40 CFR 50, Appendix S*. added at 75 FR 6532 @§34.:. 

(B) For the annual primary and secondary standards, standard, the following value shall represent the 

maximum permissible ambient air quality level: one hundred (100) 1Jg/m3 (fifty-three thousandths (0.053) 

ppm) annual arithmetic mean average concentration in a calendar year. The annual primary standard is 

attained when the annual average concentration in a calendar year is less than or equal to fifty-three 

(53) ppb, as determined in accordance with 40 CFR 50, Appendix S* for the annual standard. 

(C) For the annual secondary standard, the following value shall represent the maximum permissible 

ambient air quality level: one hundred (100) 1Jg/m3 (fifty-three thousandths (0.053) ppm) annual 

arithmetic mean concentration in a calendar year. The secondary standard is attained when the 

annual arithmetic mean concentration in a calendar year is less than or equal to fifty-three 

thousandths (0.053) ppm, rounded to three (3) decimal places (fractional parts equal to or greater 

than five ten-thousandths (0.0005) ppm must be rounded up). To demonstrate attainment, an annual 

mean must be based upon hourly data that are at least seventy-five percent (75%) complete or upon 

data derived from manual methods that are at least seventy-five percent (75%) complete for the 

scheduled sampling days in each calendar quarter. 

fG1 (D) N02 values may be converted to ppm using the conversion factor one thousand eight hundred eighty 

(1,880) 1Jgtm3 =one (1) ppm. 

(E) The levels of the standards shall be measured by: 

(i) a reference based on 40 CFR 50, Appendix F*; or 

(ii) an equivalent method designated in accordance with 40 CFR 53*. 

(6) Pb: For primary and secondary standards, the following value shall represent the maximum permissible 

ambient air quality level: fifteen-hundredths (0.15) 1Jg/m3

, arithmetic mean concentration over a three (3) 

month period. The standards are attained when the maximum arithmetic three (3) month mean concentration 

for a three (3) year period is less than or equal to fifteenth-hundredths (0.15) 1Jg/m3

, as determined in 

accordance with 40 CFR 50, Appendix R* and measured in the ambient air as Pb by either: 

(A) a reference method based on 40 CFR 50, Appendix G*, and designated in accordance with 40 CFR 53*; 

or 

(B) an equivalent method designated in accordance with 40 CFR 53*. 

(7) PM10: For primary and secondary standards, the follmving values shall represent the maximum permissible 

ambient air quality levels:- level is 

(A) Fifty (50) IJg/ma-annual arithmetic mean. The standards are attained '#hen the mepected annual 

arithmetic mean concentration, as determined in accordance with ~0 GFR 50, Appendi>c 1<*, is less than or 

equal to fifty (50) iJglm~~ 

fB1 one hundred fifty (150) 1Jg/m3 maximum twenty-four (24) hour average concentration. The standards are 

attained when the expected number of days per calendar year with a twenty~four (24) hour average 

concentration above one hundred fifty (150) 1Jg/m3

, as determined in accordance with 40 CFR 50, Appendix 

K,* is equal to or less than one (1). 

(8) PM2 5

: For primary and secondary standards, the following values shall represent the maximum 

permissiole ambient air quality levels: 

(A) Fifteen (15) micrograms per cubic meter (1Jg/m3

) annual arithmetic mean concentration. The standards 

are attained when the annual arithmetic mean concentration is less than or equal to fifteen (15) 1Jg/m3

, as 

determined in accordance with 40 CFR 50, Appendix N* and measured in the ambient air as PM2 5 by 

either: · 

(i) a reference method based on 40 CFR 50, Appendix L*, and designated in accordance with 40 CFR 53*; 

or 

(ii) an equivalent method designated in accordance with 40 CFR 53*. 

(B) Si>cty five (65) Thirty-five (35) 1Jg/m3 twenty-four (24) hour average concentration. The standards are 

attained when the ninety-eighth percentile twenty-four (24) hour concentration is less than or equal to 

si>cty five (65) thirty-five (35) micrograms per cubic meter (IJglm\ as determined in accordance with 40 

CFR 50, Appendix N* and measured in the ambient air as PM2 5 by either: 

(i) a reference method based on 40 CFR 50, Appendix L *, ana designated in accordance of 40 CFR 53*; or 

(ii) an equivalent method designated in accordance with 40 CFR 53*. 

Date: Jan 22,2013 11:51 :53AM EST DIN: 20120912-IR-326120510FDA Page 6 
Indiana Register 

*These documents are incorporated by reference. Copies may be obtained from the Government Printing 

Office, 732 North Capitol Street NW, Washington, D.C. 20401 or are available for review and copying at the 

Indiana Department of Environmental Management, Office of Air Quality, Indiana Government Center North, 

Tenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204. 

(Air Pollution Control Board; 3261AC 1-3-4; filed Mar 10, 1988, 1:20 p.m.: 111R 2378; filed Apr 13, 1988, 3:35 

p.m.: 111R 3020; readopted filed Jan 10, 2001, 3:20p.m.: 241R 1477; filed May 21, 2002, 10:20 a.m.: 251R 

3055; filed Mar 9, 2004, 3:45p.m.: 27 IR 2224; filed Dec 20, 2004, 2:15p.m.: 28 IR 1471; filed Mar 6, 2006, 3:00 

p.m.: 291R 2179; filed Sep 24, 2010, 1:44 p.m.: 20101020-IR-326100127FRA; filed Feb 9, 2011, 10:29 a.m.: 

2011 0309-IR-3261 00495FRA) 

SECTION 2. 3261AC 1-4-1 IS AMENDED TO READ AS FOLLOWS: 

Rule 4. Attainment Status Designations 

326 lAC 1-4-1 Definitions 

Authority: IC 13-14-8; IC 13-17 -3-4; IC 13-17-3-11 

Affected: IC 13-15; IC 13-17 

Sec. 1. The following definitions apply throughout this rule: 

(1) "SOi(" means sulfur dioxide. 

(2) "CO means carbon monoxide. 

(3) "0 " means ozone. 

(4) "Pf011

R" has the meaning set forth in 326 lAC 1-2-52.4. 

(5) "N0,2 means nitrogen dimddes. dioxide. 

(6) "Pb' means lead. 

(7) "PM2.

5

" has the meaning set forth in 326 lAC 1-2-52.2. 

(Air Pollution Control Board; 3261AC 1-4-1; filed Mar 10, 1988, 1:20 p.m.: 111R 2379; filed Aug 9, 1991, 11:00 

a.m.: 141R 2218; filed Dec 30, 1992, 9:00a.m.: 161R 1382; filed Apr 18, 1995, 3:00p.m.: 181R 2220; filed Oct 

22, 1997, 8:45a.m.: 21 IR 932; filed Apr 17, 1998, 9:00a.m.: 211R 3342; filed Apr 29, 1998, 3:15p.m.: 211R 

3341; filed May 21, 2002, 10:20 a.m.: 251R 3056; filed Nov 15, 2002, 11:17 a.m.: 261R 1077; filed Dec 1, 2003, 

10:00 a.m.: 271R 1167; filed Nov 12, 2004, 12:15 p.m.: 281R 1182; filed Sep 26, 2006, 10:03 a.m.: 

20061025-IR-326060018FRA; filed Sep 13, 2007, 1:57 p.m.: 20071010-IR-326070024FRA; filed Dec 26, 2007, 

1:43 p.m.: 20080123-IR-326070308FRA) 

Notice of Public Hearing 

Posted: 09/1212012 by Legislative Services Agency 

An html version of this document. 

Date: Jan 22,2013 11:51 :53AM EST DIN: 20120912-IR-326120510FDA Page 7 

Indiana Register 

TITLE 326 AIR POLLUTION CONTROL BOARD 

Notice of Public Hearing 

Notice of Public Hearing 

LSA Document #12-510 

Under JC 4-22-2-24, JC 13-14-B-6, and JC 13-14-9, notice is hereby given that on November 7, 2012, at 1:00 

p.m., at the Indiana Government Center South, 302 West Washington Street, Conference Center Room C, 

Indianapolis, Indiana, the Air Pollution Control Board will hold a public hearing on amendments to Indiana's rules 

at 326 JAG 1-3-4 concerning the national ambient air quality standards for nitrogen dioxide, sulfur dioxide, 

particulate matter with an aerodynamic diameter less than or equal to 2.5 microns, and particulate matter with an 

aerodynamic diameter Jess than or equal to 10 microns and 326 JAG 1-4-1 to add a definition for particulate 

matter with an aerodynamic diameter Jess than or equal to 2.5 microns. 

The purpose of this hearing is to receive comments from the public prior to final adoption of these rules by 

the board. All interested persons are invited and will be given reasonable opportunity to express their view 

concerning the proposed amendments. Oral statements will be heard, but, for the accuracy of the record, all 

comments should be submitted in writing. 

Additional information regarding this action may be obtained from Ryan Knapick, Rule and State 

Implementation Plan Development Section, Office of Air Quality, (317) 232-B229 or (BOO) 451-6027 (in Indiana). 

Individuals requiring reasonable accommodations for participation in this event should contact the Indiana 

Department of Environmental Management, Americans with Disabilities Act coordinator at: 

Attn: ADA Coordinator 

Indiana Department of Environmental Management 

100 North Senate Avenue 

Indianapolis, IN 46204-2251 

or call (317) 233-17B5 (V). Speech and hearing impaired callers may contact IDEM via the Indiana Relay Service 

(711) or (BOO) 7 43-3333. Please provide a minimum of 72 hours notification. 

Copies of these rules are now on file at the Office of Air Quality, Indiana Department of Environmental 

Management, Indiana Government Center North, 100 North Senate Avenue, Tenth Floor East and Legislative 

Services Agency, Indiana Government Center North, 100 North Senate Avenue, Room N201, Indianapolis, 

Indiana and are open for public inspection. 

Scott Deloney, Chief 

Air Programs Branch 

Office of Air Quality 

Posted: 09/1212012 by Legislative Services Agency 

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Date: Jan 22,2013 11 :52:03AM EST DIN: 20120912-IR-326120510PHA Page 1 

( 

( 

INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT 

We Protect Hoosiers and Our Environment. 

Mitchell E. Daniels Jr. 

Governor 

Thomas W. Easterly 

Commissioner 

October 25, 2012 

CERTIFICATE OF PUBLICATION 

100 North Senate Avenue 

Indianapolis, Indiana 46204 

(317) 232-8603 

Toll Free (800) 451-6027 

www.idem.IN.gov 

This is to certify that the Indiana Department of Environmental Management (IDEM) Notice of 

Public Hearings regarding the following rulemaking actions: 

• Adoption, Ozone Designations Emergency Rule 

• Adoption, National Ambient Air Quality Standards (NAAQS) Updates, LSA #12-51 0 

• Final Adoption, Solvent Degreasing Operations, LSA #07-352 

• Final Adoption, Lead Standard Attainment, LSA # 11-77 4 

was published on IDEM's web site on October 5, 2012. It remained posted on the site until at least 

November 7, 2012. 

The notice in full may be found at the following web address, under the "Statewide" category. 

http://www.in.gov/idem/5474.htm 

Web publication of the notice was at the request of Scott Deloney, Branch Chief, Programs 

Branch, Office of Air Quality, IDEM. 

Attachments: 

By: 

Mike Finklestein 

IDEM Webmaster 

( Copy of web page as published. 

Recycled Paper @ An Equal Opportunity Employer Please Recycle 0 
Statewide 
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BEFORE THE STATE OF INDIANA 

AIR POLLUTION CONTROL BOARD 

PUBLIC MEETING OF NOVEMBER 7 1 2012 

ORtGlNAL 

PROCEEDINGS 

before the Indiana Air Pollution Control Board 1 

Dr. James Miner 1 Chairman 1 taken before me 1 

Lindy L. Meyer 1 Jr. 1 a Notary Public in and for 

the State of Indiana 1 County of She~by/ at the 

Indiana Government Center South 1 Conference 

Center 1 Room C 1 402 West Washington Street 1 

Indianapolis 1 Indiana 1 on Wednesday 1 November 7 1 

2012 .at 1:03 o'clock p.m. 

William F. Daniels 1 RPR/CP CM d/b/a 

ACCURATE REPORTING OF INDIANA 

12922 Brighton Avenue 

Carmel 1 Indiana 46032 

(317) 848-0088 

1 
1 APPEARANCES: 

2 BOARD MEMBERS: 

3 Dr. James Miner, M.D., Chairman 

Thomas Anderson 

4 Randy Staley 

Dr. Phil Stevens 

5 Chris Horn 

Jeffery L. Quyle 

6 Mike Mettler, Proxy, State Board of 

·Health 

7 John Bacone, Proxy, Department of 

Natural Resources 

8 Megan Ottesen, Proxy, Lieutenant 

Governor 

9 Pamela Fisher, Proxy, Indiana 

Economic Development Corporation 

10 

11 IDEM STAFF MEMBERS: 

12 Keith Baugues, Asst. Commissioner 

Roger Letterman, Dep. Asst. Commissioner 

13 Scott Deloney 

Chris Pedersen 

14 Ryan Knapick 

Susan Bern 

15 Nancy King 

Catherine Mitchell 

16 

17 PUBLIC SPEAKERS: 

18 Guinn Doyle 

Bob Kelsey 

19 

20 

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23 

2 

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and I vote yes. The Board has voted to approve 

adoption of the emergency rule t~mporarily 

amending 326 IAC 1-4. 

27 

The next item on our agenda is a public 

hearing before the Air Pollution Control Board of 

the State of Indiana regarding adoption of 

amendments, 326 IAC l-3~4 and 326 IAC 1-4-1 

concerning updates to the National Ambient Air 

Quality Standards. 

We will now introduce Exhibit 2 thank 

you -- the draft rule, into the record of this 

hearing. 

Ryan, you're on the agenda again, it looks 

like. 

MR. KNAPICK: Yes. 

This rulemaking amends Indiana's rules at 

326 IAC 1-3-4 to update references to the 

National Ambient Air Quality Standards, or NAAQS, 

for nitrogen dioxide, sulfur dioxide, PM2 . 5 and 

PMlo. 

IDEM is now proposing to incorporate 

portions of 40 CFR 50.11 and 40 CFR 50.5 to 

update references to the NAAQS for N0 2 and S0 2 , 
28 

1 respectively. 

2 IDEM is also proposing to revise and 

3 update the 24-hour PM2 . 5 standard to 35 micrograms 

4 per cubic meter. 

5 This rulemaking will remove the annual PM10 

6 secondary standard from Indiana's rules to be 

7 consistent with federal regulations and will 

8 eliminate unnecessary requirements for regulated 

9 sources and IDEM. 

10 Specifically, applicants for Title V and 

i1 other designated air permits will be able to 

12 discontinue modeling for annual PM10 as part of 

13 their air quality analysis. This will save 

14 regulated sources and IDEM extra time and cost. 

15 Together, these revisions will ensure consistency 

16 with the NAAQS. 

17 And lastly, IDEM is also amending 

18 

19 

326 IAC 1-4-1 to add a definition for PM2 . 5 • 

I now request~hat the Board adopt this 

20 rule as presented. 

21 CHAIRMAN MINER: Thank you, Ryan. 

22 At present I do not have any cards from 

23 the audience that wish to discuss this rule. Is 

( 
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"'~~ _:_: 

29 

there anyone present who has not submitted a card 

who wishes to speak at this time? 

(No response.) 

CHAIRMAN MINER: Seeing none, this 

hearing is now concluded. We are now ready for 

Board action on adoption of amendments, 

326 IAC 1-3-4 and 326 IAC 1-4-1 concerning 

updates for the National Ambient Air Quality 

Standards. Is there any discussion from the 

Board at this time regarding this rule? 

MR. ANDERSON: Move for final 

adoption. 

CHAIRMAN MINER: I have a motion from 

Mr. Anderson. 

DR. STEVENS: Second. 

CHAIRMAN MINER: And a second from 

Dr. Stevens. I will do a roll-call vote. 

Mr. Mettler? 

MR. METTLER: Yes. 

CHAIRMAN MINER: Mr. Mettler votes 

yes. 

Mr. Bacone? 

MR. BACONE: Yes. 
30 

\ 

1 CHAIRMAN MINER: Mr. Bacone votes 

2 yes. 

3 Ms. Fisher? 

4 MS. FISHER: Yes. 

5 CHAIRMAN MINER: Ms. Fisher votes 

6 yes. 

7 Mr. Anderson? 

8 MR. ANDERSON: Yes. 

9 CHAIRMAN MINER: Mr. Anderson votes 

10 yes. 

11 Ms. Ottesen? 

12 MS. OTTESEN: Yes. 

\ 

13 CHAIRMAN MINER: Ms. Ottesen votes 

14 yes. 

15 Mr. Horn? 

16 MR. HORN: Yes. 

17 CHAIRMAN MINER: Mr. Horn votes yes. 

18 Mr. Staley? 

19 MR. STALEY: Yes. 

20 CHAIRMAN MINER: Mr. Staley votes 

21 yes. 

22 Dr. Stevens? 

23 DR. STEVENS: Yes. 

( 
31 

CHAIRMAN MINER: Mr. Quyle? 

MR. QUYLE: Yes. 

CHAIRMAN MINER: Mr. Quyle votes yes. 

1 

2 

3 

4 I votes yes as well. It's passed unanimously for 

5 adoption of amendments, 326 IAC 1-3~4 and 

6 IAC 1-4-1. 

7 The next item on our agenda is a p~blic 

8 hearing before the Air Pollution Control Board of 

9 the State of Indiana regarding final adoption of 

10 amendments, 326 IAC 1-2-18-5 concerning the 

11 definition of "cold clean degreaser" and 

12 amendments to 326 IAC 8-3 concerning solvent 

13 degreasing operations. 

14 We will now introduce Exhibit 3 -- thank 

15 you -- the proposed rule as preliminarily 

16 adopted, into the record of this hearing. 

17 

18 

19 

Is there someone from the Department who 

wishes to speak? Susan. 

MS. BEM: My name is Susan Bern, and I 

20 work in the Rules and SIP Section. 

21 This rulemaking amends 326 IAC 8-3 to 

22 extend the solvent requirements for cold cleaner 

23 degreasers to the entire state, provide certain 
58 

1 CERTIFICATE 

2 I, Lindy L. Meyer, Jr., the undersigned 

3 Court Reporter and Notary Public residing in the 

4 City of Shelbyville, Shelby County, Indiana, do 

5 hereby certify that the foregoing is a true and 

6 correct transcript of ·the proceedings taken by me 

7 on Wednesday, November 7, 2012 in this matter and 

8 transcribed by me. 

9 

10 

11 Lindy L. Meyer, JrP? 

12 Notary Public in and ( 

13 for the State of Indiana. 

14 

15 My Commission expires October 27, 2016. 

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