Attachment 6

Changes to the Plan Following April 22, 2013 Public Release

September 26 , 20132013 Revision to the Sacramento Regional 8

- hour Ozone Attainment

and Reasonable Further Progress Plan September 26 , 2013 Page 1

Page No. Changes Plan Inside Cover Page Updated the Air Pollution Control Officer that changed after notice published

for the Feather River Air Quality Management District. Table of Content Page numbers changed for Chapter s 7 and 8

.

List of Figures Removed Figure 8

- 2 from the list.

Section 1.4 Tables 1

- 1 and 1

- 2 Removed ERCs from the tables, updated the total emission for the milestone

years and the attainment year, added footnotes describing that ERCs are already in the emission inventory estimates, and to match Tables 5

- 2 and 5

- 3. Section 1.6 Revised discussion clarifying t he necessity o f a dual pollutant strategy.

Section 1.6 Table 1

- 3 Corrected computational errors in Table 1

- 3 for the “Total Local Regulatory

Measures” and “Total Reductions”. Section 1.7 Table 1

- 5 The numbers in the table are corrected to 1 decimal point.

Section 1.9 Revised discussion for readability. Section 1.10 Changed information on VMT Offset more precise. Section 1.13 Removed “in downwind” from bullet number 3 improving clarity. Section 2.4 Added reference to EPA’s finding that the Sacramento Region attained the

revoked 1

- hour ozone standard. Section 2.5 Revised discussion for readability. Section 2.7 Added recent events for the public hearing process. Section 3.1 Added reference to EPA’s finding that the Sacramento Region attained the

revoked 1

- hour ozone standard. Section 3.3 Added EPA’s action on reclassification request and removed the information

for previous “Serious” classification. Section 3.5 Revised discussion for readability. Section 3.7 Revised discussion for readability. Section 3.8 Revised discussion for readability. Section 3.9 Reorganized the discussion to present events for the Reasonable Further

Progress Plan (RPF) in chronological order. Section 4.1 Revised discussion for readability. Section 4.2 Revised discussion for readability. Noted relocation of one monitoring site in

2010

. Section 4.3 Revised discussion for readability.

Updated the number of exceedance days to match updated data in Table 4

- 1

.2013 Revision to the Sacramento Regional 8

- hour Ozone Attainment

and Reasonable Further Progress Plan September 26 , 2013 Page 2

Page No. Changes Section 4.4 Removed the R 2 statistics summary since they are not need ed

.

Added the 2008

- 2012 air quality data and updated statistics for number of exceedance day trend. 2008

- 2012 air quality data was included to demonstrate continuing improvement of air quality in the Sacramento Federal Nonatt ainment Area. Air quality continues to improve; the peak site design value changed from 98 parts per billion (ppb) in 2007 to 95 ppb in 2012. The site recording the highest number of exceedance days shifted from Cool to Folsom. Section 4.5 Updated the lower range of the region’s ozone design value concentration. The

peak design value site shifted from Cool to Folsom. Section 4.6 Removed the R 2 statistics summary since they are not need ed

.

Added 2008

- 2012 air quality data and updated statistics for ozone design value trend. Updated Tables 4

- 1 and 4

- 2 to reflect the latest information downloaded from CARB’s iADAM Air Quality Data Statistics on 06/06/2013. The statistics of Colfax, Cool, Echo Summit Folsom, Placerville, Pleasant Grove, Rocklin, Roseville, Sac

- Air Port Road, Vacaville, and Woodland sites have been updated. Section 5.4 Tables 5

- 2 and 5

- 3 Revised Tables 5

- 2 and 5

- 3 for updated stationary sources emissions

inventory. The changes were made to correct an error and make the inventory tables 5

- 2 and 5

- 3 match the Total ERC s shown in Tables 5

- 4 and 5

- 5 . In the April 2013 version, the ERCs accounted in Table 5

- 2 and 5

- 3, was added to the inventory by CARB using ERC adjustment factors . T he adjustment factor

was incorrect and less than the ERCs in Table 5

- 4 and 5

- 5 by 0.7 tpd NO X and 0.8 tpd VOC. This error is corrected by adding the difference as ERC adjustments as shown in Table A5

- 1. Section 5.5 Revised the discussion for footnote 6 4 for readability

. Section 5.7 Tables 5

- 4 and 5

- 5 Updated the future year emissions inventory forecasts to match updated

Tables 5

- 2 and 5

- 3.

Section 6.3 Revised discussion for readability. Section 6.12 Revised discussion for readability. Section 7.1 Revised discussion for readability. Section 7.3 Inserted new discussion describing Table 7

- 2 and fixed several grammatical

errors. Section 7.3 Table 7

- 2 Replaced Table 7

- 2 with CARB’s update dated 05/15/2013. Changed Table 7

-

2 to be consistent with Tables 5

- 2 and 5

- 3. Added footnote 5 to indicate that the safety margins for transportation conformity are included in the total inventory. Section 7.3 Showed the deleted Tables 7

- 1 and 7

- 1A inadvertently omitted in the prior

strikeout version. Section 7 .18 Updated the language for control measures status. Section 7.18 Table 7

- 5 Corrected computational errors in Table 7

- 5 for the “Total Local Regulatory

Measures” and “Total Reductions”.

Section s 8. 3 Revised discussion to more accurately characterize the attainment2013 Revision to the Sacramento Regional 8

- hour Ozone Attainment

and Reasonable Further Progress Plan September 26 , 2013 Page 3

Page No. Changes and 8.4 demonstration as a result of the correction to the inventory (see discussion of

Section 5.4.) Figure 8

- 1 Re

- inserted the original Point A and Point B to avoid confusion in the text

description in the strike out version. Section 8.5 Table 8

- 1 The numbers were revised to reflect the corrected inventory (see discussion of

Section 5.4) and in the table are corrected to 1 decimal point. Section 8.6 Removed Section 8.6 and renumbered Section 8.7 to 8.6 Section 8. 6 Table 8

- 2 Updated the table for showing the numbers with 1 decimal point.

Section 12.5 Table 12

- 1 Combined the Aircraft Operations and Ground Service Equipment emissions

and rounded emissions up to the next tenth decimal number to be consistent with the rounding convention for the emission inventory

. Removed the 94SIP footnote which is irrelevant after removal of the 94SIP information from the table. Section 13.4.1 Re placed the discussion of safety margins with a reference to Chapter 11

where the detailed discussion appears. Section 13.4.3 Revised discussion for readability.

Section 13.5 Inserted discussion for the RFP contingency requirement. Section 14.6 Table 14

- 1 Corrected computational errors in Table 14

- 1 for the “Total Local Regulatory

Me asures” and “Total Reductions”. Section 14.7 Table 14

- 3 See discussion of Table 8

- 1 for discussion of changes.

Appendices Appendix A (page A

- 1) Unde r the description of Appendix A 4, the reference for off

- road equipment

emissions model should be OFFROAD 2007, not EMFAC2007. Appendix A2 A dded new language about the ERCs in CEPAM (A2) inventory and ERC

correction by external adjustment Appendix A5 A dded ERC adjustments to Table A5

- 1. Added discussion on calculation of

ERCs in CEPAM and the determination of ERC adjustments needed so that full amount of ERCs (3 tpd of NO X and 4 tpd of VOC) is added to the planning inventories for attainment demonstration and RFP. Appendix A6 Added language to state that 3 tpd of NO X ERCs and 4 tpd VOC ERCs are

added to the inventory. Appendix A7 R evised 2019 inventory to reflect correct ERCs.

Appendix B Table B

- 31 Inserted “and VOC” to the title after “ NO X ” and modified the description and

added a footnote of the second last row of the table to avoid confusion. Updated the emissions inventory for attainment year. Appendix B Figure B

- 1 Showed the deleted discussion of Point A and Point B to avoid confusion in the

text description in the strikeout version.

Page C

- 51 Table A9

- 1 Showed the deleted Point A and Poi nt B to avoid confusion in the text

description in the strikeout version.2013 Revision to the Sacramento Regional 8

- hour Ozone Attainment

and Reasonable Further Progress Plan September 26 , 2013 Page 4

Page No. Changes Appendix F Fixed the page number errors in the footer.

Revised the discussion for clarity.