SIP Status Reports

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Status of Indiana Designated Areas

Indiana Areas by NAAQS
NOTE: As of 03/12/2021, these reports are no longer being updated. For the latest information, see the SIP Status Tools.

Jump to Indiana section for: CO (1971) Lead (1978) Lead (2008) NO2 (1971) Ozone-1Hr (1979) Ozone-8Hr (1997) Ozone-8Hr (2008) Ozone-8Hr (2015) PM-10 (1987) PM-2.5 (1997) PM-2.5 (2006) PM-2.5 (2012) SO2 (1971) SO2 (2010)


Indiana CO (1971) Areas    Return to map
 
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to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 Design Value
Annual
(ppm)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
East Chicago Area Maintenance 11/15/1990 Not Classified 5,208 2019 1.6 Yes 1 / 1  
 		 11/10/1999 03/20/2000
65 FR 2883
Indianapolis Area Maintenance 11/15/1990 Not Classified 61,160 2019 2.2 Yes 1 / 1  
 		 11/10/1999 03/20/2000
65 FR 2883

Indiana Lead (1978) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 Design Value
Annual
(µg/m3)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
Marion County (part); Part of Franklin Township Maintenance 01/06/1992   18,158 2009-2010   No Data 1 / 1  
 		 11/22/1999 07/10/2000
65 FR 29959

Indiana Lead (2008) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 Design Value
Annual
(µg/m3)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
Muncie Maintenance 12/31/2010   854 2017-2019 0.04 Yes 6 / 1 05/15/2020
85 FR 29331		 04/14/2016 05/15/2020
85 FR 29331

Indiana NO2 (1971) Areas     Return to map Top of page

No designated areas for this pollutant.

Indiana Ozone-1Hr (1979) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 Design Value
Annual
(ppm)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
Chicago-Gary-Lake County Area Nonattainment (NAAQS revoked) 11/15/1990 Severe-17 660,348 2017-2019 0.100 Yes 29 / 28 01/29/2009
73 FR 79652		 10/25/2007  
Evansville Area Maintenance (NAAQS revoked) 01/06/1992 Marginal 179,703 2017-2019 0.078 Yes 4 / 4  
 		 11/01/1993 12/09/1997
62 FR 64725
Indianapolis Area Maintenance (NAAQS revoked) 11/15/1990 Marginal 903,393 2017-2019 0.083 Yes 4 / 4  
 		 11/22/1993 11/30/1994
59 FR 54391
Louisville Area Maintenance (NAAQS revoked) 11/15/1990 Moderate 184,810 2017-2019 0.089 Yes 22 / 22  
 		 04/11/2001 11/23/2001
66 FR 53665
South Bend-Elkhart Area Maintenance (NAAQS revoked) 11/15/1990 Marginal 464,490 2017-2019 0.082 Yes 4 / 4  
 		 09/22/1993 11/30/1994
59 FR 54391

Indiana Ozone-8Hr (1997) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 Design Value
Annual
(ppm)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
Chicago-Gary-Lake County Area Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 660,348 2017-2019 0.075 Yes 53 / 44 04/12/2010
75 FR 12088		 06/05/2009 05/11/2010
75 FR 26113
Cincinnati-Hamilton Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 13,516 2017-2019 0.074 Yes 4 / 1 05/11/2010
75 FR 26118		 01/21/2010 05/11/2010
75 FR 26118
Evansville Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 239,392 2017-2019 0.066 Yes 4 / 0  
 		 06/02/2005 01/30/2006
70 FR 77026
Fort Wayne Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 355,329 2017-2019 0.066 Yes 4 / 3  
 		 05/30/2006 02/12/2007
72 FR 1292
Greene County Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 33,165 2017-2019 0.065 Yes 4 / 0  
 		 07/15/2005 12/29/2005
70 FR 69085
Indianapolis Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 1,834,672 2017-2019 0.070 Yes 4 / 0  
 		 03/26/2007 10/19/2007
72 FR 59210
Jackson County Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 42,376 2017-2019 0.062 Yes 4 / 0  
 		 07/15/2005 12/29/2005
70 FR 69085
La Porte County Area Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 111,467 2017-2019 0.076 Yes 3 / 0  
 		 05/30/2006 07/19/2007
72 FR 39574
Louisville Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 184,810 2017-2019 0.071 Yes 4 / 0  
 		 11/15/2006 07/19/2007
72 FR 39571
Muncie Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 117,671 2017-2019 0.064 Yes 4 / 0  
 		 08/25/2005 01/03/2006
70 FR 69443
South Bend-Elkhart Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 464,490 2017-2019 0.069 Yes 4 / 0  
 		 05/30/2006 07/19/2007
72 FR 39577
Terre Haute Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 107,848 2017-2019 0.066 Yes 4 / 0  
 		 07/05/2005 02/06/2006
71 FR 541

Indiana Ozone-8Hr (2008) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 Design Value
Annual
(ppm)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
Chicago-Naperville Nonattainment 07/20/2012 Serious 660,348 2017-2019 0.075 Yes 59 / 2  
 		 02/27/2020  
Cincinnati Maintenance 07/20/2012 Marginal 13,600 2017-2019 0.074 Yes 3 / 2 06/03/2016
81 FR 26697		 02/23/2016 04/07/2017
82 FR 16940

Indiana Ozone-8Hr (2015) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 Design Value
Annual
(ppm)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
Chicago Nonattainment 08/03/2018 Marginal 421,162 2017-2019 0.075 No 3 / 0  
 		    
Louisville Nonattainment 08/03/2018 Marginal 184,810 2017-2019 0.072 No 3 / 0  
 		    

Indiana PM-10 (1987) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 Average
Estimated
Exceedances
(est. exc.)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
Lake County; Cities of East Chicago, Hammond, Whiting, and Gary Maintenance 11/15/1990 Moderate 214,867 2017-2019 0.0 Yes 3 / 3  
 		 09/30/2002 03/11/2003
68 FR 1370
Vermillion County; Part of Clinton Township Maintenance 11/15/1990 Moderate 9,119 2017-2019   No Data 3 / 3  
 		 06/17/1997 10/27/1997
62 FR 45168

Indiana PM-2.5 (1997) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 Design Value
Annual
(µg/m3)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
Chicago-Gary-Lake County Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 660,348 2017-2019 10.8 Yes 5 / 1 10/02/2013
78 FR 60704		 04/03/2008 02/06/2012
76 FR 76302
Cincinnati-Hamilton Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 13,516 2017-2019 11.8 Yes 8 / 3 10/31/2011
76 FR 60373		 08/19/2016 09/01/2017
82 FR 41527
Evansville Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 296,995 2017-2019 8.9 Yes 5 / 0 11/27/2009
74 FR 62243		 04/03/2008 10/27/2011
76 FR 59527
Indianapolis Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 1,531,958 2017-2019 11.3 Yes 5 / 1 07/11/2013
78 FR 41698		 10/20/2009 07/11/2013
78 FR 41698
Louisville Maintenance (NAAQS revoked) 04/05/2005 Moderate 203,489 2017-2019 9.8 Yes 6 / 1 10/07/2011
76 FR 55544		 04/20/2011 09/09/2016
81 FR 62390

Indiana PM-2.5 (2006) Areas     Return to map Top of page

No designated areas for this pollutant.

Indiana PM-2.5 (2012) Areas     Return to map Top of page

No designated areas for this pollutant.

Indiana SO2 (1971) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 Design Value
Annual/24-Hr
(ppb)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
La Porte County: (part) Maintenance 03/03/1978   111,471     /     0 / 0  
 		 06/17/1996 01/14/1997
61 FR 58482
Lake County: (part) Maintenance 03/03/1978   496,000     /     0 / 0  
 		 06/21/2005 10/26/2005
70 FR 56129
Marion County: Lawrence, Washington, and Warrant Townships Maintenance 03/03/1978   349,929     /     0 / 0  
 		 03/20/1996 01/14/1997
61 FR 58482
Vigo County Maintenance 03/03/1978   107,848     /     0 / 0  
 		 06/17/1996 01/14/1997
61 FR 58482
Wayne County: Boston, Center, Franklin, Wayne & Webster Townships Maintenance 03/03/1978   52,325     /     0 / 0  
 		 06/17/1996 01/14/1997
61 FR 58482

Indiana SO2 (2010) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements

Area		 Status Designation
Date		 Classification 2010
Population
(state portion)		 Meets NAAQS
Basis		 3 Year
1-⁠Hour
Design Value
(ppb)
(entire area)		 Meets
NAAQS		 SIP
Requirements
Original/
Approved		 Clean Air
Determination
Citation
Effective Date
Click to view
FR notice 		Redesignation
Request Date		 Redesignation
Citation
Effective Date
Click to view
FR notice
Huntington Nonattainment 04/09/2018   20,838 2017-2019   No Data 6 / 0  
 		    
Indianapolis Maintenance 10/04/2013   388,587 2017-2019 5 Yes 6 / 5 05/21/2020
85 FR 30844		 07/10/2017 05/21/2020
85 FR 30844
Morgan County Maintenance 10/04/2013   21,365 2017-2019   Insufficient Data 6 / 6  
 		 10/10/2019 09/16/2020
85 FR 57736
Southwest Indiana Nonattainment 10/04/2013   5,555 2017-2019 14 Yes 6 / 5  
 		 10/24/2018 04/30/2021
86 FR 12107
Terre Haute Maintenance 10/04/2013   53,902 2017-2019 4 Yes 6 / 5  
 		 10/24/2018 07/08/2019
84 FR 32317
We have made our best effort to ensure that the data contained in these reports is accurate. We note that there may be brief delays in updating the reports as we receive new state submissions and we take rulemaking action on plans. In order to assist us in providing accurate information, we request that you contact us by clicking on the "Contact Us" link near the top of this page with any comments regarding or corrections to the posted information, including concerns about whether the entries reflect the most recent status.

Current and historical design value data can be found on the EPA Air Quality Design Values website and the EPA Green Book contains comprehensive nonattainment area, designation status, and historical information.

The level of the 1-hour NAAQS for sulfur dioxide is 75 parts per billion (ppb) calculated as the 3-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations.

SIP Status Reports