SIP Status Reports

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Status of Tennessee Designated Areas

Tennessee 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NOTE: As of 03/12/2021, these reports are no longer being updated.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 Tennessee 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)


Tennessee CO (1971) Areas    Return to map
 
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
Memphis Area Maintenance 11/15/1990 Moderate <= 12.7ppm 927,644 2019 0.9 Yes 5 / 5  
 
10/19/1993 09/26/1994
59 FR 37939

Tennessee 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
Fayette County (part) Maintenance 06/07/1993   38,033 2009-2010   No Data 1 / 1  
 
10/06/1994 10/17/1995
60 FR 43017
Shelby County (part) Maintenance 01/06/1992   2,226 2009-2010   No Data 1 / 1  
 
02/15/2001 07/02/2001
66 FR 22125
Williamson County (part) Maintenance 01/06/1992   183,182 2009-2010   No Data 1 / 1  
 
09/11/1998 09/10/1999
64 FR 37406

Tennessee 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
Bristol Maintenance 12/31/2010   1,611 2017-2019 0.00 Yes 6 / 6 09/28/2012
77 FR 52232
  08/08/2016
81 FR 44210

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

No designated areas for this pollutant.

Tennessee 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
Knoxville Area Maintenance (NAAQS revoked) 01/06/1992 Marginal 432,226 2017-2019 0.082 Yes 2 / 2  
 
08/26/1992 10/27/1993
58 FR 50271
Memphis Area Maintenance (NAAQS revoked) 11/15/1990 Marginal 927,644 2017-2019 0.088 Yes 4 / 4  
 
11/19/1992 02/16/1995
60 FR 3352
Nashville Area Maintenance (NAAQS revoked) 11/15/1990 Moderate 1,347,105 2017-2019 0.086 Yes 23 / 23  
 
11/17/1994 10/30/1996
61 FR 55903

Tennessee 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
Clarksville-Hopkinsville Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 172,331 2017-2019 0.058 Yes 4 / 0  
 
08/10/2005 11/21/2005
70 FR 55559
Knoxville Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 821,883 2017-2019 0.065 Yes 4 / 0 10/12/2010
75 FR 62470
07/14/2010 03/08/2011
76 FR 12587
Memphis Area Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 927,644 2017-2019 0.069 Yes 54 / 2  
 
02/26/2009 02/03/2010
75 FR 56

Tennessee 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
Knoxville Maintenance 07/20/2012 Marginal 573,452 2017-2019 0.065 Yes 3 / 2 06/03/2016
81 FR 26697
11/14/2014 08/12/2015
80 FR 39970
Memphis Maintenance 07/20/2012 Marginal 927,644 2017-2019 0.069 Yes 3 / 2 06/03/2016
81 FR 26697
01/19/2016 07/25/2016
81 FR 40816

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

No designated areas for this pollutant.

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

No designated areas for this pollutant.

Tennessee 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
Chattanooga Maintenance (NAAQS revoked) 04/05/2005 Moderate 336,463 2017-2019 8.8 Yes 6 / 2 10/11/2011
76 FR 55774
11/13/2014 11/04/2015
80 FR 68253
Knoxville Maintenance (NAAQS revoked) 04/05/2005 Moderate 681,523 2017-2019 8.5 Yes 8 / 2 09/04/2012
77 FR 45954
12/20/2016 08/29/2017
82 FR 40953

Tennessee PM-2.5 (2006) Areas    Return to map
Area designated nonattainment for the 24-hour standard     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
24-Hr
(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
Knoxville-Sevierville-La Follette Maintenance 12/14/2009 Moderate 681,523 2017-2019 19 Yes 7 / 2 06/09/2017
82 FR 21711
12/20/2016 09/27/2017
82 FR 40718

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

No designated areas for this pollutant.

Tennessee 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
Benton County; (part) TVA Johnsonville Maintenance 11/15/1990   16,489     /     0 / 0  
 
12/22/1993 01/26/1998
62 FR 62695
Humphreys County; (part) TVA Johnsonville Maintenance 11/15/1990   18,539     /     0 / 0  
 
12/22/1993 01/26/1998
62 FR 62695
Polk County Maintenance 11/15/1990   16,825     /     0 / 0  
 
07/17/1990 01/26/1998
62 FR 62695

Tennessee 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
Sullivan County Nonattainment 10/04/2013   15,289 2017-2019 79 No 6 / 0  
 
   
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.