### Addendum to the Technical Support Document Approval and Promulgation of Implementati on Plans; Texas; Revisions to the New Source Review (NSR) State Implementation Pl an (SIP); Antibacksliding of Major NSR SIP Requirements for the One-Hour Ozone National Ambient Air Quality Standards NAAQS; Major Nonattainment NSR (NNSR) SIP Requirements fo r the 1997 8-Hour Ozone NAAQS; and Major NSR Reform Program Docket No. EPA-R06-OAR-2011-0332

1 This is an addendum to the Technical Support Document (TSD) for the proposed action on SIP Revisions to the Texas SIP relating to Antibacks liding of Major NSR SIP Requirements for the OneHour Ozone National Ambient Air Quality Standa rds NAAQS; Major Nonattainment NSR (NNSR) SIP Requirements for the 1997 8-Hour Ozone NAAQS; and Major NSR Reform Program. This document identifies revisions to the TSD which is pos ted in the docket as document EPA-R06-OAR-2011-0332- 0008. These changes relate to a SIP submittal that the Texas Commission on Environmental Quality (TCEQ) submitted on August 29, 2012, that finalizes changes that TCEQ proposed on February 22, 2012, and which EPA parallel processed in the J une 20, 2012 proposal at 76 FR 36964. This revision also includes other changes that were made to the TSD (including the co rrection of typographical errors).

The TSD posted in the docket as document EP A-R06-OAR-2011-0332-0008, is amended as described below

1. Table 1 on pages 3 and 4 is revised as follows:

a. The sixth column of the second row is revi sed to remove the refe rences to 30 TAC 116.610 and 116.617. These references were removed because this action does not address these rules.

b. The sixth column of the fourth row is revise d to remove the reference to 30 TAC 116.601. This reference was removed because this action does not address this rule.

c. The second through sixth columns in the fifth row are revised to include th e revisions that TCEQ adopted July 25, 2012. These revisions were propos ed February 22, 2012, a nd parallel processed.

d. The third through fifth columns of the sixth row ar e revised to conform to the revisions described in paragraph 1.c above

e. Footnote ( e 

### ) following Table 1 is removed and footnote ( f 

### ) is redesignated to footnote ( e 

### ) to conform to the revisions describe d in paragraphs 1.c and d above.

f. As revised, Table 1 reads as follows:

Table 1. Summary of Pending SIP Subm ittals Addressed in this Action
Description of SIP Submittal Texas Rule Project Number Date Submitted

to EPA Adopted by State Effective as State Rule Rules Addressed in this Action

* * * * * * * Federal New

Source Review (NSR) Permit Rules Reform 2005-010-116-PR 2010-008-116-PR 3/11/2011-2 b 1/11/2006 2/1/2006 Amended 30 TAC 116.12 c

, 116.150, 116.151, and 116.160. New 30 TAC 116.121, 116.180,

116.182, 116.184, 116.186, 116.188, 116.190, 116.192, 116.196, and 116.198.

### Addendum to the Technical Support Document Approval and Promulgation of Implementati on Plans; Texas; Revisions to the New Source Review (NSR) State Implementation Pl an (SIP); Antibacksliding of Major NSR SIP Requirements for the One-Hour Ozone National Ambient Air Quality Standards NAAQS; Major Nonattainment NSR (NNSR) SIP Requirements fo r the 1997 8-Hour Ozone NAAQS; and Major NSR Reform Program Docket No. EPA-R06-OAR-2011-0332

2 Description of SIP Submittal Texas Rule Project Number Date Submitted

to EPA Adopted by State Effective as State Rule Rules Addressed in this Action

* * * * * * * New Source

Review (NSR) Reform 2010-008-116-PR 3/11/2011-2 2/9/2011 3/3/2011 Amended 30 TAC 116.12 c

, 116.115, 116.180, 116.182, 116.186, 116.188, 116.190, and 116.192; Repeal of 30 TAC 116.121; and New 30 TAC 116.127. NSR Reform

Revisions 2012-015-116-AI 8/29/2012 7/25/2012 8/16/2012 Amended 30 TAC 116.12(23); 116.150(a), (d)(1), and (d)(3); 116.151(a), (c)(1), and (c)(3); 116.180(a)(5); 116.186(b)(9). Proposed revision (dated

2/22/2010 was parallel processed in EPA’s proposal. Letter of

explanation and interpretation of the Texas SIP for NSR Reform N/A e e e Letter dated 5/3/2012 from TCEQ to EPA which explains and clarifies TCEQ’s interpretation of sections 116.12(22) and 116.186(a), (b)(9), and (c)(2).

* * * * *

e Letter dated May 3, 2012, with explanation and interpretation of the Texas SIP for NSR Reform.

### Addendum to the Technical Support Document Approval and Promulgation of Implementati on Plans; Texas; Revisions to the New Source Review (NSR) State Implementation Pl an (SIP); Antibacksliding of Major NSR SIP Requirements for the One-Hour Ozone National Ambient Air Quality Standards NAAQS; Major Nonattainment NSR (NNSR) SIP Requirements fo r the 1997 8-Hour Ozone NAAQS; and Major NSR Reform Program Docket No. EPA-R06-OAR-2011-0332

3 2. Table 2 on pages 5 through 7 is revised as follows:

a. Revised entries for 30 TAC 116.1 2, 116.150, 116.151, 116.180, and 51.186. These revisions include the revisions that TCEQ adopted July 25, 2012. These revision s were proposed February 22, 2012, and parallel processed. b. Footnote ( e 

### ) following Table 2 is removed and footnote ( f 

### ) is redesignated to footnote ( e 

### ) to conform to the revisions desc ribed in paragraph 2.a above. c. As revised, Table 2 reads as follows: Table 2. Summary of Individual Revi sions to each section evaluated

Section - Title Texas Rule Project Number Date Submitted to EPA Adopted by State Comments

30 TAC 116.12 –

Nonattainment and Prevention of Significant Deterioration Review Definitions 2005-009-116-AI 2008-030-116-PR 3/11/2011-1 a 5/25/2005 Amended paragraphs (7), (11), and (13) d

2005-010-116-PR 2010-008-116-PR 3/11/2011-2 1/11/2006 c, d

2010-008-116-PR 3/11/2011-2 2/9/2011 Amended paragraphs (3), (20). and (29) d

2012-015-116-AI 8/29/2012 7/25/2012 Amended paragraph (23) N/A e e TCEQ’s letter dated 5/3/2012 explains and clarifies TCEQ’s interpretation of the definition of “plant-wide applicability limit” in paragraph (22). * * * * * * * 30 TAC 116.150 –

New Major Source or Major Modification in Ozone Nonattainment Area 2005-009-116-AI 2008-030-116-PR 3/11/2011-1 a 5/25/2005 Amended subsections (a); New subsections (b), (c), (d), and (e); Renamed subsection (b) to subsection (f) 2005-010-116-PR 2012-015-116-AI 3/11/2011-2 b 1/11/2006 Amended subsections (a), (b), (c), (d), and (e)

2008-030-116-PR 3/11/2011-1 2/9/2011 Amended subsections (a) and (b); Removed subsection (d); Renamed subsection (e) to subsection (d); Amended subsection (d) as renamed 2012-015-116-AI 8/29/2012 7/25/2012 Amended paragraphs (a), (d)(1), and (d)(3) e 30 TAC 116.151 –

New Major Source or Major Modification in Nonattainment Areas Other Than Ozone 2005-010-116-PR 2010-008-116-PR 3/11/2011-2 b 1/11/2006 Amended subsections (a), (b), and (c)

2010-008-116-PR 3/11/2011-2 2/9/2011 Re submitted with no additional changes 2012-015-116-AI 8/29/2012 7/25/2012 Amended paragraphs (a), (c)(1), and (c)(3)

30 TAC 116.180 –

Applicability 2005-010-116-PR 2010-008-116-PR 3/11/2011-2 b 1/11/2006 Initial submittal

2010-008-116-PR 3/11/2011-2 2/9/2011 Amended subsection (a) 2012-015-116-AI 8/29/2012 7/25/2012 Amended paragraph (a)(5) e * * * * * * *

### Addendum to the Technical Support Document Approval and Promulgation of Implementati on Plans; Texas; Revisions to the New Source Review (NSR) State Implementation Pl an (SIP); Antibacksliding of Major NSR SIP Requirements for the One-Hour Ozone National Ambient Air Quality Standards NAAQS; Major Nonattainment NSR (NNSR) SIP Requirements fo r the 1997 8-Hour Ozone NAAQS; and Major NSR Reform Program Docket No. EPA-R06-OAR-2011-0332

4 Section - Title Texas Rule Project Number Date Submitted to EPA Adopted by State Comments

30 TAC 116.186 –

General and Specific Conditions 2005-010-116-PR 2010-008-116-PR 3/11/2011-2 b 1/11/2006 Initial submittal

2010-008-116-PR 3/11/2011-2 2/9/2011 Amended subsections (a) and (b) 2012-015-116-AI 8/29/2012 7/25/2012 Amended paragraph (b)(9) e N/A e e TCEQ’s letter dated 5/3/2012 explains and clarifies TCEQ’s interpretation of paragraphs (a), (b)(9) and (c)(2). * * * * * * *

* * * * *

e Letter dated May 3, 2012, with explanation and interpretation of the Texas SIP for NSR Reform.



### 3. On page 15, footnote 10 is revise by replac ing “51.166(w)(2)(ii)” with “51.166(w)(6)(ii).” This revision corrects a typographical error in the original TSD. 4. On page 26, the last sentence in the first comple te bullet on that page is revised by replacing “practically enforceable” with “p ractical enforceability.” This revision corrects a typographical error in the original TSD. 5. On page 26, the last sentence in the second comp lete bullet on that page is revised by replacing “practically enforceable” with “p ractical enforceability.” This revision corrects a typographical error in the original TSD.

6. General Comment. a. Throughout the TSD and the Appendix thereto, th ere are references to TCEQ’s revisions that were proposed February 22, 2012. TCEQ requested that EPA parallel pr ocess these proposed revisions in order to expedite the SIP approval process. In response to th is request, EPA reviewed and proposed to approve the two re visions that were submitted March 11, 2011, and (through parallel processing) the revisions that TCEQ proposed on February 22, 2011. See 77 FR 36964 (June 20, 2012). On July 25, 2012, the TCEQ adop ted as final the revisions that it had proposed for on February 22. 2012. The final rules ar e that same as the proposed rule. The final rules became effective under State la w on August 16, 2012. On August 29, 2012, TCEQ submitted these final rules to EPA for approval into the Texas SIP. The references in the TSD to the February 22, 2012, proposal were include d prior to the final adoption of the proposed changes. We are not making revisions to the TSD to incorporate the dates of the final adoption and submittal of thes e changes because the changes are the same as the proposal and do not change the basis for the proposed and final a pproval. However, the information concerning the final adoption and submittal of the final rule are in the docket and are discussed in the final action.

### Addendum to the Technical Support Document Approval and Promulgation of Implementati on Plans; Texas; Revisions to the New Source Review (NSR) State Implementation Pl an (SIP); Antibacksliding of Major NSR SIP Requirements for the One-Hour Ozone National Ambient Air Quality Standards NAAQS; Major Nonattainment NSR (NNSR) SIP Requirements fo r the 1997 8-Hour Ozone NAAQS; and Major NSR Reform Program Docket No. EPA-R06-OAR-2011-0332

5 b. EPA also received comments on the June 20, 2012, proposed rulemaking. These comments are posted in the docket and are di scussed in the final action. Because the comments do not change the proposed action or the basis for the proposed action, we are not revising the TSD to a ddress these comments.