## Attachment A

State - by-State Maps and Number of Days ≥ 0.060 ppm The ambient ozone data in this document were compiled from analyses used in support of the proposed rule for the O 3 

## NAAQS: Revisions to the Length of the Required O 3 

## Monitoring Seasons

Docket ID No. EPA- HQ- OAR - 2008 -0699Year- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Alabama CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 2 of 26 ozone sites operated yearround (8%)  Exceedance days during 2005 - 2006: 0 (B), 0(A)  Exceedance days during 2007 - 2009: 1 (B), 1 (A): 2/28; 11/5  Exceedance days during 2010 - 2013: 1 (B), 1 (A)  Period of exceedances: 2/17, 11/12  Notes:  No changes proposed 1 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Alaska CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  2 of 5 ozone site operated year- round (40%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 0 (B), 0 ( A)  Notes:  No changes proposed

2 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Arizona CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  35 of 48 ozone sites operated year- round (73%) due to Region 9 granted waivers  Exceedance days during 2005 - 2006: 2 (B), 0 (A): 3/5, 3/25  Exceedance days during 2007 - 2009: 5 (B), 0 (A): 3/10 - 3/19  Exceedance days during 2010 - 2013: 0 (B), 0 ( A)  Period of exceedances: N/A  Notes:  Current analysis did not consider waivers  Final rule will moot the current waivers 3 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Arkansas CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  9 of 10 ozone sites operated year- round ( 9 0%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 2 (B), 0 (A): 2/21, 2/28  Exceedance days during 2010 - 2013: 1 (B), 0 (A )  Period of exceedances: 2/13  Notes:  No changes proposed

4 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# California CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  172 of 201 ozone sites operated yearround (85%) due to Region 9 granted waivers  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 0 (B), 0 (A)  Period of exceedances: N/A  Notes:  Current analysis did not consider waivers  Final rule will revoke the current waivers 5 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Colorado CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  34 of 53 ozone sites operated year- round (64%)  Exceedance days during 2005 - 2006: 3 (B), 0 (A)  Exceedance days during 2007 - 2009: 8 (B), 3 (A): 2/16 – 11/27  Exceedance days during 2010 - 2013: 60 (B), 19 (A)  Period of exceedances: 1/7 – 2/28, 10/1 – 12/31  Notes:  Propose year- round monitoring season  Region 8 supported year- round monitoring season with waivers in 2009 proposal 6 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Connecticut CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  3 of 13 ozone sites operated year- round (23%)  Exceedance days during 2005 - 2006: 2 (B), 2 (A)  Exceedance days during 2007 - 2009: 0 (B), 3 (A): 10/4 – 10/6  Exceedance days during 2010 - 2013: 3 (B), 2 (A)  Period of exceedances: 3/19 – 3/21, 10/12 – 10/13  Notes:  Propose adding March Year- round data limited  Consistency with RI and MA considered 7 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Delaware CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  6 of 7 ozone sites operated year- round (86%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 1 (B), 0 (A): 3/14  Exceedance days during 2010 - 2013: 4 (B), 0 (A)  Period of exceedances: 3/10 – 3/25  Notes:  Propose adding March Areal coverage is small  Consistency with NJ, PA, VA, MD 8 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013] 

# District of Columbia CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  3 of 4 ozone sites operated year- round (75%)  Exceedance days during 2005 - 2006: 2 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 3 (B), 0 ( A )  Period of exceedances: 3/19 – 3/21  Notes:  Propose adding March Areal coverage is small  Consistency with MD, VA, DE 9 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Florida CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 59 of 62 ozone sites operated year- round (95%)  Exceedance days during 2005 - 2006: 6 (B), 7 (A)  Exceedance days during 2007 - 2009: 14 (B), 12(A): 1/4 – 11/28  Exceedance days during 2010- 2013: 13 (B), 5 (A)  Period of exceedances: 1/24 – 2/28, 11/1 – 11/23  Notes:  Propose adding 4 months for yearround monitoring season Vast majority of “before” exceedances occurred in February and no “after” exceedances in December 10 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Georgia CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  2 of 21 ozone sites operated year- round (10%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 2 (B), 0 (A)  Period of exceedances: 2/14, 2/17  Notes:  No changes proposed Year- round data limited  Consistency with AL, SC 11 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Hawaii CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  2 of 2 ozone sites operated year- round (100%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 0 (B), 0 (A)  Period of exceedances: N/A  Notes:  No changes proposed

12 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Idaho CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  2 of 6 ozone sites operated year- round (33%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 1 (B), 0 (A): 4/27  Exceedance days during 2010 - 2013: 8 (B), 1 (A)  Period of exceedances: 4/4 – 4/24, 10/2  Notes:  Propose adding April Year- round data limited  Consistency with MT 13 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Illinois CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  26 of 44 ozone sites operated yearround (59%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 1 (B), 0 (A): 3/17 Exceedance days during 2010 - 2013: 6 (B), 1 (A)  Period of exceedances: 2/13, 3/15 – 3/31, 11/2  Notes:  Propose adding March  Consistent with surrounding states 14 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Indiana CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  3 of 46 ozone sites operated year- round (7%)  Exceedance days during 2005 - 2006: 0 (B), 2 (A)  Exceedance days during 2007 - 2009: 0 (B), 5 (A): 10/1 – 10/8  Exceedance days during 2010 - 2013: 2 (B), 9 (A ) Period of exceedances: 3/21, 3/31, 10/5 – 10/17  Notes:  Proposed adding March and Oct. Year- round data limited  Consistent with IL, KY, OH, MI 15 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Iowa CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  1 of 15 ozone sites operated year- round (7 %)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 0 (B), 0 (A)  Period of exceedances: N/A  Notes:  Propose adding March Year- round data limited  Consistent with surrounding states 16 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Kansas CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 11 of 11 ozone sites operated year- round (100%)  Exceedance days during 2005 - 2006: 3 (B), 1 (A)  Exceedance days during 2007 - 2009: 5 (B), 0 (A): 3/6 – 3/29  Exceedance days during 2010- 2013: 17 (B), 1 (A) Period of exceedances: 2/12 – 3/31, 11/1  Notes:  Propose adding March  Before exceedances 4 of 17 in Feb., 13 of 17 in March  KS commented in last proposal that ozone season should be same as MO due to unified Kansas City planning area  Proposal maintains consistency with MO 17 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Kentucky CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  5 of 32 ozone sites operated yearround (16%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 5 (A): 11/1 – 11/5  Exceedance days during 2010 - 2013: 0 (B), 3 (A ): 11/11 – 11/13  Period of exceedances:  Notes:  No changes proposed  Consistency with IL, IN, OH

18 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013] 

# Louisiana (northern) AQCR 019, 022 CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  3 of 3 ozone sites operated year- round (100%) for these AQCR’s  Exceedance days during 2005 - 2006: 1(B), 1(A)  Exceedance days during 2007 - 2009: 3 (B), 2(A): 2/6 – 11/25  Exceedance days during 2010 - 2013: 0 (B), 1(A ): 11/1  Notes:  No changes proposed

19 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013] 

# Louisiana (southern) AQCR 106 CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  21 of 24 ozone sites operated yearround (88%) for these AQCR’s  Exceedance days during 2005 - 2006: 0(B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A) Exceedance days during 2010 - 2013: 0 (B), 0 (A)  Period of exceedances: N/A  Notes:  No changes proposed

20 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Maine CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  5 of 19 ozone sites operated year- round (26%)  Exceedance days during 2005 - 2006: 2(B), 1 (A)  Exceedance days during 2007 - 2009: 1 (B), 0 (A ): 3/14  Exceedance days during 2010 - 2013: 3 (B), 0 (A)  Period of exceedances: 3/12, 3/19, 3/31  Notes :  No changes proposed

21 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Maryland CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 6 of 21 ozone sites operated yearround (29%)  Exceedance days during 2005 - 2006: 2(B), 1 (A)  Exceedance days during 2007 - 2009: 5 (B), 0 (A): 3/10 – 3/18  Exceedance days during 2010- 2013: 10 (B), 0 ( A ) Period of exceedances: 2/17, 3/10 – 3/30  Notes:  Propose adding March  1 of 10 exceedances on 2/17, rest in March

22 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Massachusetts CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  5 of 19 ozone sites operated year- round (26%)  Exceedance days during 2005 - 2006: 2 (B), 0 (A)  Exceedance days during 2007 - 2009: 2 (B), 3 (A): 3/14 – 10/27  Exceedance days during 2010 - 2013: 5 (B), 2 (A ) Period of exceedances: 3/7 – 3/31, 10/9 – 10/10  Notes:  Propose adding March  Consistency with CT and RI 23 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Michigan CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  7 of 30 ozone sites operated year- round (23%)  Exceedance days during 2005 - 2006: 2 (B), 3 (A): 3/28 – 10/5  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 5 (B), 6 (A) Period of exceedances: 3/9 – 3/31, 10/6 – 10/11  Notes:  Propose adding March and Oct.  Consistency with surrounding IL, OH, IN, WI 24 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Minnesota CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  2 of 18 ozone sites operated year- round (11%)  Exceedance days during 2005 - 2006: 1 (B), 0 (A): 3/29  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 5 (B), 0 (A)  Period of exceedances: 3/7, 3/10, 3/29 - 3/30  Notes:  Propose adding March Year- round data limited  Regional consistency considered 25 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Mississippi CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  2 of 12 ozone sites operated yearround (17%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 1 (B), 1 (A)  Period of exceedances: 2/13, 11/2  Notes:  No changes proposed

26 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Missouri CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 2 of 25 ozone sites operated year- round (8%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010- 2013: 2 (B), 0 (A)  Period of exceedances: 3/3, 3/11  Notes:  Propose adding March  Consistency with KS which has had numerous March exceedances (11) and IL where also propose adding March Year- round data limited 27 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Montana CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  7 of 9 ozone sites operated year- round (78%)  Exceedance days during 2005 - 2006: 4 (B), 0 (A)  Exceedance days during 2007 - 2009: 2 (B), 0 (A): 5/25, 5/26  Exceedance days during 2010 - 2013: 9 (B), 0 (A )  Period of exceedances: 4/20 - 5/17  Notes:  Propose adding April and May 4 exceedance days in April and 5 in May 28 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Nebraska CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 2 of 7 ozone sites operated year- round (29%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 4 (B), 0 (A)  Period of exceedances: 3/24, 3/25, 3/26, 3/29  Notes:  Propose adding March Year- round data limited  Consistency with SD, KS, IA, MO 29 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Nevada CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  16 of 37 ozone sites operated yearround (43%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 0 (B), 0 (A)  Period of exceedances: N/A  Notes:  Current analysis did not consider waivers  Final rule will moot current waivers 30 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# New Hampshire CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  7 of 13 ozone sites operated year- round (54%)  Exceedance days during 2005 - 2006: 1 (B), 0 (A): 3/31  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 13 (B), 6 (A )  Period of exceedances: 2/17, 2/18, 3/11

– 3/31, 10/1 – 10/25  Notes:  Propose adding March  Consistency with other New England states 31 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# New Jersey CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  14 of 17 ozone sites operated yearround (82%)  Exceedance days during 2005 - 2006: 4 (B), 0 (A)  Exceedance days during 2007 - 2009: 1 (B), 0 (A): 3/11  Exceedance days during 2010 - 2013: 3 (B), 0 ( A) Period of exceedances: 3/19, 3/20, 3/21  Notes:  Propose adding March  Consistency with surrounding PA, NY, MD, DE 32 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# New Mexico CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  24 of 27 ozone sites operated yearround (92%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 0 (B), 0 (A)  Period of exceedances: N/A  Notes: Analysis did not consider waivers  Final rule will moot current waivers

33 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# New York CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 34 of 38 ozone sites operated year- round (89%)  Exceedance days during 2005 - 2006: 4 (B), 0 (A)  Exceedance days during 2007 - 2009: 7 (B), 0 (A): 3/3 – 3/22  Exceedance days during 2010- 2013: 16 (B), 0 (A )  Period of exceedances: 2/17, 3/7 – 3/30  Notes:  Propose adding March  Consistent with PA, CT, NJ proposal  State commented on last proposal that northern states should have shorter season (already permissible through RA waiver process) 34 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# North Carolina CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 7 of 49 ozone sites operated year- round (14%)  Exceedance days during 2005 - 2006: 3 (B), 0 (A)  Exceedance days during 2007 - 2009: 16 (B), 0 (A): 3/10 – 3/28  Exceedance days during 2010- 2013: 17 (B), 0 (A )  Period of exceedances: 2/17, 3/8 – 3/30  Notes:  Propose adding March  Exceedance day count significant given low number of year- round monitors  Consistency with VA, SC 35 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# North Dakota CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  8 of 9 ozone sites operated year- round (89%)  Exceedance days during 2005 - 2006: 5 (B), 0 (A)  Exceedance days during 2007 - 2009: 4 (B), 0 (A): 3/13 – 4/29  Exceedance days during 2010 - 2013: 12 (B), 1 (A )  Period of exceedances: 3/8 – 4/23, 10/5  Notes:  Propose adding March and April

36 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Ohio CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  6 of 53 ozone sites operated year- round (11%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 1 (B), 2 (A): 3/3, 11/1, 11/8  Exceedance days during 2010 - 2013: 13 (B), 2 ( A )  Period of exceedances: 2/17, 3/7 – 3/31 , 11/10, 11/13  Notes:  Propose adding March  Consistency with IN, MI, and PA proposal 37 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Oklahoma CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 16 of 33 ozone sites operated yearround (48%)  Exceedance days during 2005 - 2006: 2 (B), 0 (A)  Exceedance days during 2007 - 2009: 1 (B), 0 (A): 2/14  Exceedance days during 2010- 2013: 1 (B), 0 (A )  Period of exceedances: 1/29  Notes:  No changes proposed  Extensive year- round network  Consistency with northern TX

38 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Oregon CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  1 of 10 ozone sites operated year- round (10%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 0 (B), 0 (A)  Period of exceedances: N/A  Notes:  No changes proposed Year- round data limited  Consistency with WA 39 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Pennsylvania CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  50 of 59 ozone sites operated yearround (85%)  Exceedance days during 2005 - 2006: 2 (B), 0 (A)  Exceedance days during 2007 - 2009: 1 (B), 0 (A): 3/18  Exceedance days during 2010 - 2013: 14 (B), 0 (A)  Period of exceedances: 3/7 – 3/31  Notes:  Propose adding March  Consistency with NY, NJ, OH, MD, DE proposal 40 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Rhode Island CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  1 of 3 ozone sites operated year- round (33%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 3 (B), 0 ( A)  Period of exceedances: 3/19, 3/20, 3/31  Notes:  Propose adding March  Consistency with CT and MA proposal  Limited year- round monitors 41 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# South Carolina CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  9 of 24 ozone sites operated yearround (38%)  Exceedance days during 2005 - 2006: 18 (B), 0 (A)  Exceedance days during 2007 - 2009: 29 (B), 1 (A): 2/16 – 11/2  Exceedance days during 2010 - 2013: 23 (B), 0 (A)  Period of exceedances: 2/21, 3/3 – 3/31  Notes:  Propose adding March  Consistent with rest of Southeast 42 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# South Dakota CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  7 of 7 ozone sites operated year- round (100%)  Exceedance days during 2005 - 2006: 16 (B), 0 (A)  Exceedance days during 2007 - 2009: 24 (B), 0 (A): 4/18 – 5/31  Exceedance days during 2010 - 2013: 31 (B), 6 (A)  Period of exceedances: 3/5 – 5/30, 10/3 – 10/6  Notes:  Propose adding 4 months  4 exceedance days in March, rest April - May, 5 in Oct. 43 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Tennessee CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 5 of 27 ozone sites operated year- round (19%)  Exceedance days during 2005 - 2006: 1 (B), 0 (A)  Exceedance days during 2007 - 2009: 2 (B), 4 (A): 2/24, 2/28, 11 – 11/5  Exceedance days during 2010- 2013: 6 (B), 4 (A )  Period of exceedances: 2/13 – 2/21, 11/1 – 11/13  Notes:  No changes proposed  Regional consistency considered  State comment on last proposal opposed change, would affect agreements with AR, KY, GA  Proposal maintains consistency with AR, KY, GA 44 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013] 

# Texas (northern) AQCR 022,210, 211, 212, 215, 217, 218 CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  31 of 36 ozone sites operated yearround (86%) for these AQCR’s  Exceedance days during 2005 - 2006: 0 (B), 3 (A)  Exceedance days during 2007 - 2009: 2 (B), 6 (A): 2/22, 2/28, 11/2 – 11/8  Exceedance days during 2010 - 2013: 1 (B ), 3 (A ) Period of exceedances: 2/27, 11/1 - 11/8  Notes:  Propose adding Nov.  Consistency with OK, AR

45 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013] 

# Texas (southern) AQCR 106, 153, 213, 214, 216 CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 44 of 47 ozone sites operated yearround (94%) for these AQCR’s  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 0 (B), 0 (A)  Period of exceedances: N/A  Notes:  No changes proposed

46 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Utah CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 13 of 30 ozone sites operated year- round (43%)  Exceedance days during 2005 - 2006: 26 (B), 1 (A)  Exceedance days during 2007 - 2009: 55 (B), 11 (A): 3/4 - 12/30  Exceedance days during 2010- 2013: 230 (B), 19 (A )  Period of exceedances: 1/1 - 4/30, 10/1 - 12/31  Notes:  Propose adding 7 months for year round season  Exceedances > 100 ppb Dec. - March  Consistent with proposed CO season and current NV, AZ seasons 47 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Vermont CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  2 of 2 ozone sites operated year- round (100%)  Exceedance days during 2005 - 2006: 2 (B), 3 (A)  Exceedance days during 2007 - 2009: 2 (B), 0 (A): 3/17, 3/22  Exceedance days during 2010 - 2013: 1 (B), 0 (A )  Period of exceedances: 3/31  Notes:  No changes proposed

48 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Virginia CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

4 of 30 ozone sites operated year- round (13%)  Exceedance days during 2005 - 2006: 4 (B), 1 (A)  Exceedance days during 2007 - 2009: 8 (B), 1 (A): 3/3 – 3/27, 11/11  Exceedance days during 2010- 2013: 13 (B), 0 (A )  Period of exceedances: 2/17, 3/8 – 3/30  Notes:  Propose adding March Year- round data limited  Consistency with NC, SC proposal; existing KY seasons 49 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Washington CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  5 of 18 ozone sites operated year- round (28%)  Exceedance days during 2005 - 2006: 0 (B), 1 (A)  Exceedance days during 2007 - 2009: 1 (B), 0 (A): 4/6  Exceedance days during 2010 - 2013: 0 (B), 2 (A )  Period of exceedances: 10/27, 10/28  Notes:  No changes proposed

50 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# West Virginia CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  2 of 10 ozone sites operated year- round (20%)  Exceedance days during 2005 - 2006: 0 (B), 0 (A)  Exceedance days during 2007 - 2009: 0 (B), 0 (A)  Exceedance days during 2010 - 2013: 2 (B), 0 (A)  Period of exceedances: 3/20, 3/21  Notes:  Propose adding March  Regionally consistent with OH, MD, PA, VA, and KY 51 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Wisconsin CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  5 of 37 ozone sites operated year- round (14%)  Exceedance days during 2005 - 2006: 7 (B), 0 (A)  Exceedance days during 2007 - 2009: 2 (B), 0 (A): 4/5, 4/6  Exceedance days during 2010 - 2013: 8 (B), 0 (A )  Period of exceedances: 3/5 – 3/31  Notes:  Propose adding March to April 15  Net season: March 1 – Oct. 15

52 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After seasonYear- round monitor Season - only monitor

[Based on data completeness during 2010 – 2013]



# Wyoming CURRENT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec PROPOSED Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

 24 of 34 ozone sites operated year- round (71%)  Exceedance days during 2005 - 2006: 46 (B), 0 (A)  Exceedance days during 2007 - 2009: 51 (B), 0 (A): 1/25 – 3/30  Exceedance days during 2010- 2013: 55 (B), 0 (A )  Period of exceedances: 1/29 – 3/31  Notes:  Propose adding Jan., Feb., March and removing Oct. Two exceedance days in Jan., rest in Feb. and March  Consistent with start month of UT, CO 53 Exceedances: Days >= 8 - hour 0.060 ppm, (B) = Before season, (A)=After season