§ 81.309 - District of Columbia.  


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  • § 81.309 District of Columbia.

    District of Columbia—TSP

    Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
    1. Area bounded by: East Capitol Street S.E., District Line (Southern Avenue S.E.), Eastern Shore of Potomac River and Eastern Shore of Anacostia RiverX
    2. Area bounded by: Francis Scott Key Bridge, M Street, N.W., 23rd Street N.W., Florida Avenue N.W., U Street N.W., Florida Avenue N.W.-N.E., 4th Street N.E.-S.E. Southeast-Southwest Freeway (I295, I395), 15th Street S.W.-N.W., Constitution Avenue N.W., Theodore Roosevelt Memorial Bridge, Potomac RiverX
    3. Remainder of the District of Columbia portion of the National Capital Interstate AQCRX

    District of Columbia—1971 Sulfur Dioxide NAAQS

    [Primary and Secondary]

    Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
    National Capital Interstate AQCR—District of Columbia portionX

    District of Columbia—2010 Sulfur Dioxide NAAQS

    [Primary]

    Designated area1 Designation
    Date2 Type
    District of ColumbiaAttainment/Unclassifiable.

    District of Columbia-Carbon Monoxide

    Designated area Designation Classification
    Date1 Type Date1 Type
    Washington Area:
    Washington Entire Area.Attainment

    District of Columbia—Ozone (1-Hour Standard)2

    Designated area Designation Classification
    Date1 Type Date1 Type
    Washington Area: Washington Entire AreaNonattainment3/25/03Severe

    District of Columbia—1997 Annual PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    Washington, DC–MD–VA:
    District of Columbia10/6/14Attainment

    District of Columbia—2012 Annual PM2.5 NAAQS

    [Primary]

    Designated area1 Designation Classification
    Date2 Type Date2 Type
    AQCR 047 National Capital Interstate (DC–MD–VA) (part)
    District of ColumbiaUnclassifiable/Attainment

    District of Columbia—1997 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    AQCR 047 National Capital Interstate (DC–MD–VA) (part)
    District of ColumbiaUnclassifiable/Attainment.

    District of Columbia—2006 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    AQCR 047 National Capital Interstate (DC–MD–VA) (part)
    District of ColumbiaUnclassifiable/Attainment.

    District of Columbia—NO2 (1971 Annual Standard)

    Designated area Does not meet primary standards Cannot be classified or better than national standards
    National Capital Interstate AQCR—District of Columbia portionX

    District of Columbia—NO2 (2010 1-Hour Standard)

    Designated area Designationa
    Date1 Type
    District of ColumbiaUnclassifiable/Attainment.

    District of Columbia—1997 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area Designationa Category/classification
    Date1 Type Date1 Type
    Washington, DC-MD-VA:
    District of ColumbiaNonattainmentSubpart 2/Moderate.

    District of Columbia—2008 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area Designation Classification
    Date Type Date Type
    Washington, DC-MD-VA: District of Columbia1 July 16, 2019Attainment

    District of Columbia—2015 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area1 Designation Classification
    Date2 Type Date2 Type
    Washington, DC-MD-VANonattainmentNovember 7, 202211/7/22Moderate.
    District of Columbia.

    District of Columbia—2008 Lead NAAQS

    Designated area Designation for the 2008 NAAQSa
    Date1 Type
    Whole StateUnclassifiable/Attainment.

    [43 FR 40507, Sept. 12, 1978]