SIP Status Reports

You are here: EPA Home > Air Quality Implementation Plans > SIP Status Reports > Status of South Carolina Designated Areas

Status of South Carolina Designated Areas

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NOTE: As of 03/12/2021, these reports are no longer being updated.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

South Carolina CO (1971) Areas Return to map
No designated areas for this pollutant.
South Carolina Lead (1978) Areas Return to map Top of page
No designated areas for this pollutant.
South Carolina Lead (2008) Areas Return to map Top of page
No designated areas for this pollutant.
South Carolina NO2 (1971) Areas Return to map Top of page
No designated areas for this pollutant.
South Carolina 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
Cherokee County Area	Maintenance (NAAQS revoked)	01/06/1992	Marginal	55,342	2017-2019		Insufficient Data	0 / 0		07/20/1992	02/16/1993 57 FR 59300
South Carolina 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
Charlotte-Gastonia-Rock Hill Area	Maintenance (NAAQS revoked)	06/15/2004	Subpart 2/Moderate	178,913	2017-2019	0.070	Yes	52 / 50	04/06/2012 77 FR 13493	06/01/2011	12/26/2012 77 FR 75862
South Carolina 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
Charlotte-Rock Hill	Maintenance	07/20/2012	Marginal	177,819	2017-2019	0.070	Yes	3 / 2	06/03/2016 81 FR 26697	04/17/2015	01/11/2016 80 FR 76865
South Carolina Ozone-8Hr (2015) Areas Return to map Top of page
No designated areas for this pollutant.
South Carolina PM-10 (1987) Areas Return to map Top of page
No designated areas for this pollutant.
South Carolina PM-2.5 (1997) Areas Return to map Top of page
No designated areas for this pollutant.
South Carolina PM-2.5 (2006) Areas Return to map Top of page
No designated areas for this pollutant.
South Carolina PM-2.5 (2012) Areas Return to map Top of page
No designated areas for this pollutant.
South Carolina SO2 (1971) Areas Return to map Top of page
No designated areas for this pollutant.
South Carolina SO2 (2010) Areas Return to map Top of page
No designated areas for this pollutant.

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.