The final " Redesignation Demonstration and Maintenance Plan for the Hickory and Greensboro/Winston-Salem/High Point Fine Particulate Matter Nonattainment Areas" State Implementation Plan (SIP) package was submitted to the United States Environmental Protection Agency (USEPA) on December 18, 2009. The narrative documents that the Hickory and Triad areas have attained the 1997 annual fine particulate matter (PM2.5) national ambient air quality standard, fulfilling requirements of Section 175A(b) of the Federal Clean Air Act as amended. The transmittal letter, narrative, and appendices are available through the links found below.
On December 22, 2010, the Division of Air Quality (DAQ) submitted to the USEPA a Supplement to the Hickory and Triad areas' maintenance plan, revising the motor vehicle emission and the motor vehicle emission budgets for transportation conformity purposes using the new USEPA mobile model Motor Vehicle Emission Simulator (MOVES). Additionally, the DAQ submitted an Errata document to make minor corrections or changes, at the request of the USEPA, to the redesignation demonstration and maintenance plan for the fine particulate matter nonattainment areas. The transmittal letter, the supplement narrative, appendices and errata document are available through the links found below.
The Supplement made revisions to select pages of the Redesignation Demonstration and Maintenance Plan Narrative and Appendix E - Hearing Report. The Supplement replaced in its entirety Appendix C.3 - On-Road Mobile Source Emission Inventory Documentation. The Errata also made changes to select pages of the Narrative and Appendix C.1 - Point Source Emission Inventory Documentation. Below are the documents affected by the Supplement and Errata with the new pages inserted.
Please direct any further questions or comments concerning this SIP submittal to Ms. Laura Boothe at Laura.Boothe@ncdenr.gov.
