Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

2006 2006 2006 2006

5/28/2006 51-059-0030 0.076 ppm 101 24 100 44201 Ozone Virginia Fairfax

5/29/2006 11-001-0025 0.08 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

5/29/2006 11-001-0041 0.086 ppm 127 24 100 44201 Ozone District Of Columbia District of Columbia

5/29/2006 11-001-0043 0.088 ppm 132 24 100 44201 Ozone District Of Columbia District of Columbia

5/29/2006 24-005-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

5/29/2006 24-025-1001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford

5/29/2006 24-025-9001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

5/29/2006 24-033-0030 0.085 ppm 124 24 100 44201 Ozone Maryland Prince George's

5/29/2006 51-013-0020 0.08 ppm 111 24 100 44201 Ozone Virginia Arlington

5/30/2006 11-001-0025 0.086 ppm 127 24 100 44201 Ozone District Of Columbia District of Columbia

5/30/2006 11-001-0041 0.093 ppm 145 24 100 44201 Ozone District Of Columbia District of Columbia

5/30/2006 11-001-0043 0.102 ppm 166 24 100 44201 Ozone District Of Columbia District of Columbia

5/30/2006 24-003-0014 0.092 ppm 142 24 100 44201 Ozone Maryland Anne Arundel

5/30/2006 24-005-1007 0.08 ppm 111 24 100 44201 Ozone Maryland Baltimore

5/30/2006 24-005-3001 0.105 ppm 174 24 100 44201 Ozone Maryland Baltimore

5/30/2006 24-009-0011 0.077 ppm 104 24 100 44201 Ozone Maryland Calvert

5/30/2006 24-013-0001 0.077 ppm 104 24 100 44201 Ozone Maryland Carroll

5/30/2006 24-017-0010 0.079 ppm 109 24 100 44201 Ozone Maryland Charles

5/30/2006 24-021-0037 0.078 ppm 106 24 100 44201 Ozone Maryland Frederick

5/30/2006 24-025-1001 0.103 ppm 169 24 100 44201 Ozone Maryland Harford

5/30/2006 24-025-9001 0.094 ppm 147 24 100 44201 Ozone Maryland Harford

5/30/2006 24-031-3001 0.083 ppm 119 24 100 44201 Ozone Maryland Montgomery

5/30/2006 24-033-0030 0.095 ppm 150 24 100 44201 Ozone Maryland Prince George's

5/30/2006 24-033-8003 0.085 ppm 124 24 100 44201 Ozone Maryland Prince George's

5/30/2006 51-013-0020 0.101 ppm 164 24 100 44201 Ozone Virginia Arlington

5/30/2006 51-059-0030 0.099 ppm 159 24 100 44201 Ozone Virginia Fairfax

5/30/2006 51-061-0002 0.093 ppm 145 24 100 44201 Ozone Virginia Fauquier

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

5/30/2006 51-107-1005 0.084 ppm 122 24 100 44201 Ozone Virginia Loudoun

5/30/2006 51-153-0009 0.096 ppm 151 24 100 44201 Ozone Virginia Prince William

5/30/2006 51-179-0001 0.116 ppm 201 24 100 44201 Ozone Virginia Stafford

5/30/2006 51-510-0009 0.094 ppm 147 24 100 44201 Ozone Virginia Alexandria City

5/31/2006 11-001-0025 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia

5/31/2006 11-001-0041 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

5/31/2006 11-001-0043 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

5/31/2006 24-013-0001 0.104 ppm 172 24 100 44201 Ozone Maryland Carroll

5/31/2006 24-021-0037 0.088 ppm 132 24 100 44201 Ozone Maryland Frederick

5/31/2006 24-031-3001 0.101 ppm 164 24 100 44201 Ozone Maryland Montgomery

5/31/2006 24-033-0030 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

5/31/2006 51-013-0020 0.085 ppm 124 24 100 44201 Ozone Virginia Arlington

5/31/2006 51-059-0030 0.078 ppm 106 24 100 44201 Ozone Virginia Fairfax

5/31/2006 51-061-0002 0.078 ppm 106 24 100 44201 Ozone Virginia Fauquier

5/31/2006 51-107-1005 0.102 ppm 166 24 100 44201 Ozone Virginia Loudoun

5/31/2006 51-153-0009 0.098 ppm 156 24 100 44201 Ozone Virginia Prince William

5/31/2006 51-510-0009 0.08 ppm 111 24 100 44201 Ozone Virginia Alexandria City

6/1/2006 11-001-0025 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia

6/1/2006 11-001-0041 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

6/1/2006 11-001-0043 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia

6/1/2006 24-005-1007 0.078 ppm 106 24 100 44201 Ozone Maryland Baltimore

6/1/2006 24-021-0037 0.079 ppm 109 24 100 44201 Ozone Maryland Frederick

6/1/2006 24-025-1001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

6/1/2006 24-025-9001 0.083 ppm 119 24 100 44201 Ozone Maryland Harford

6/1/2006 24-031-3001 0.09 ppm 137 24 100 44201 Ozone Maryland Montgomery

6/1/2006 24-033-0030 0.098 ppm 156 24 100 44201 Ozone Maryland Prince George's

6/1/2006 24-033-8003 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

6/1/2006 51-013-0020 0.083 ppm 119 24 100 44201 Ozone Virginia Arlington
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

6/1/2006 51-059-0030 0.079 ppm 109 24 100 44201 Ozone Virginia Fairfax

6/16/2006 51-059-0030 0.079 ppm 109 24 100 44201 Ozone Virginia Fairfax

6/17/2006 11-001-0025 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

6/17/2006 11-001-0043 0.081 ppm 114 24 100 44201 Ozone District Of Columbia District of Columbia

6/17/2006 24-003-0014 0.076 ppm 101 24 100 44201 Ozone Maryland Anne Arundel

6/17/2006 24-005-1007 0.085 ppm 124 24 100 44201 Ozone Maryland Baltimore

6/17/2006 24-013-0001 0.083 ppm 119 24 100 44201 Ozone Maryland Carroll

6/17/2006 24-021-0037 0.076 ppm 101 24 100 44201 Ozone Maryland Frederick

6/17/2006 24-025-9001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford

6/17/2006 24-031-3001 0.091 ppm 140 24 100 44201 Ozone Maryland Montgomery

6/17/2006 24-033-0030 0.084 ppm 122 24 100 44201 Ozone Maryland Prince George's

6/17/2006 24-033-8003 0.079 ppm 109 24 100 44201 Ozone Maryland Prince George's

6/17/2006 51-013-0020 0.077 ppm 104 24 100 44201 Ozone Virginia Arlington

6/17/2006 51-059-0030 0.076 ppm 101 24 100 44201 Ozone Virginia Fairfax

6/17/2006 51-107-1005 0.077 ppm 104 24 100 44201 Ozone Virginia Loudoun

6/17/2006 51-153-0009 0.077 ppm 104 24 100 44201 Ozone Virginia Prince William

6/18/2006 11-001-0025 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

6/18/2006 11-001-0043 0.08 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

6/18/2006 24-005-1007 0.095 ppm 150 24 100 44201 Ozone Maryland Baltimore

6/18/2006 24-005-3001 0.082 ppm 116 24 100 44201 Ozone Maryland Baltimore

6/18/2006 24-013-0001 0.082 ppm 116 24 100 44201 Ozone Maryland Carroll

6/18/2006 24-021-0037 0.085 ppm 124 24 100 44201 Ozone Maryland Frederick

6/18/2006 24-025-1001 0.089 ppm 135 24 100 44201 Ozone Maryland Harford

6/18/2006 24-025-9001 0.091 ppm 140 24 100 44201 Ozone Maryland Harford

6/18/2006 24-031-3001 0.083 ppm 119 24 100 44201 Ozone Maryland Montgomery

6/18/2006 24-033-0030 0.09 ppm 137 24 100 44201 Ozone Maryland Prince George's

6/18/2006 51-013-0020 0.077 ppm 104 24 100 44201 Ozone Virginia Arlington
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

6/18/2006 51-107-1005 0.076 ppm 101 24 100 44201 Ozone Virginia Loudoun

6/21/2006 11-001-0041 0.082 ppm 116 24 100 44201 Ozone District Of Columbia District of Columbia

6/21/2006 11-001-0043 0.083 ppm 119 24 100 44201 Ozone District Of Columbia District of Columbia

6/21/2006 24-003-0014 0.094 ppm 147 24 100 44201 Ozone Maryland Anne Arundel

6/21/2006 24-005-3001 0.086 ppm 127 24 100 44201 Ozone Maryland Baltimore

6/21/2006 24-009-0011 0.083 ppm 119 24 100 44201 Ozone Maryland Calvert

6/21/2006 24-017-0010 0.079 ppm 109 24 100 44201 Ozone Maryland Charles

6/21/2006 24-025-1001 0.095 ppm 150 24 100 44201 Ozone Maryland Harford

6/21/2006 24-033-8003 0.096 ppm 151 24 100 44201 Ozone Maryland Prince George's

6/21/2006 51-013-0020 0.083 ppm 119 24 100 44201 Ozone Virginia Arlington

6/21/2006 51-059-0030 0.081 ppm 114 24 100 44201 Ozone Virginia Fairfax

6/21/2006 51-179-0001 0.077 ppm 104 24 100 44201 Ozone Virginia Stafford

6/22/2006 11-001-0041 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

6/22/2006 11-001-0043 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

6/22/2006 24-003-0014 0.084 ppm 122 24 100 44201 Ozone Maryland Anne Arundel

6/22/2006 24-005-3001 0.085 ppm 124 24 100 44201 Ozone Maryland Baltimore

6/22/2006 24-009-0011 0.076 ppm 101 24 100 44201 Ozone Maryland Calvert

6/22/2006 24-025-1001 0.094 ppm 147 24 100 44201 Ozone Maryland Harford

6/22/2006 24-025-9001 0.09 ppm 137 24 100 44201 Ozone Maryland Harford

6/22/2006 24-033-8003 0.083 ppm 119 24 100 44201 Ozone Maryland Prince George's

6/22/2006 51-013-0020 0.079 ppm 109 24 100 44201 Ozone Virginia Arlington

6/22/2006 51-059-0030 0.08 ppm 111 24 100 44201 Ozone Virginia Fairfax

6/28/2006 24-003-0014 0.077 ppm 104 24 100 44201 Ozone Maryland Anne Arundel

6/28/2006 24-033-8003 0.079 ppm 109 24 100 44201 Ozone Maryland Prince George's

6/29/2006 24-025-1001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

6/29/2006 24-033-8003 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/3/2006 24-003-0014 0.079 ppm 109 24 100 44201 Ozone Maryland Anne Arundel

7/3/2006 24-025-1001 0.083 ppm 119 24 100 44201 Ozone Maryland Harford

7/3/2006 24-025-9001 0.08 ppm 111 24 100 44201 Ozone Maryland Harford

7/3/2006 24-033-8003 0.08 ppm 111 19 79 44201 Ozone Maryland Prince George's

7/10/2006 24-025-9001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford

7/11/2006 11-001-0025 0.08 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

7/11/2006 11-001-0043 0.08 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

7/11/2006 24-005-1007 0.082 ppm 116 24 100 44201 Ozone Maryland Baltimore

7/11/2006 24-005-3001 0.083 ppm 119 24 100 44201 Ozone Maryland Baltimore

7/11/2006 24-025-1001 0.087 ppm 129 24 100 44201 Ozone Maryland Harford

7/11/2006 24-025-9001 0.09 ppm 137 24 100 44201 Ozone Maryland Harford

7/11/2006 24-033-0030 0.086 ppm 127 24 100 44201 Ozone Maryland Prince George's

7/12/2006 24-005-3001 0.078 ppm 106 24 100 44201 Ozone Maryland Baltimore

7/17/2006 11-001-0025 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

7/17/2006 11-001-0041 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

7/17/2006 11-001-0043 0.091 ppm 140 24 100 44201 Ozone District Of Columbia District of Columbia

7/17/2006 24-003-0014 0.094 ppm 147 24 100 44201 Ozone Maryland Anne Arundel

7/17/2006 24-005-1007 0.078 ppm 106 24 100 44201 Ozone Maryland Baltimore

7/17/2006 24-005-3001 0.091 ppm 140 24 100 44201 Ozone Maryland Baltimore

7/17/2006 24-017-0010 0.099 ppm 159 24 100 44201 Ozone Maryland Charles

7/17/2006 24-021-0037 0.083 ppm 119 24 100 44201 Ozone Maryland Frederick

7/17/2006 24-025-1001 0.095 ppm 150 24 100 44201 Ozone Maryland Harford

7/17/2006 24-025-9001 0.083 ppm 119 24 100 44201 Ozone Maryland Harford

7/17/2006 24-033-0030 0.084 ppm 122 24 100 44201 Ozone Maryland Prince George's

7/17/2006 24-033-8003 0.100 ppm 161 24 100 44201 Ozone Maryland Prince George's
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/17/2006 51-013-0020 0.095 ppm 150 24 100 44201 Ozone Virginia Arlington

7/17/2006 51-059-0030 0.107 ppm 179 24 100 44201 Ozone Virginia Fairfax

7/17/2006 51-107-1005 0.080 ppm 111 24 100 44201 Ozone Virginia Loudoun

7/17/2006 51-179-0001 0.088 ppm 132 24 100 44201 Ozone Virginia Stafford

7/17/2006 51-510-0009 0.098 ppm 156 24 100 44201 Ozone Virginia Alexandria City

7/18/2006 11-001-0025 0.083 ppm 119 24 100 44201 Ozone District Of Columbia District of Columbia

7/18/2006 11-001-0041 0.093 ppm 145 24 100 44201 Ozone District Of Columbia District of Columbia

7/18/2006 11-001-0043 0.096 ppm 151 24 100 44201 Ozone District Of Columbia District of Columbia

7/18/2006 24-003-0014 0.105 ppm 174 24 100 44201 Ozone Maryland Anne Arundel

7/18/2006 24-005-3001 0.110 ppm 187 24 100 44201 Ozone Maryland Baltimore

7/18/2006 24-009-0011 0.082 ppm 116 24 100 44201 Ozone Maryland Calvert

7/18/2006 24-017-0010 0.094 ppm 147 24 100 44201 Ozone Maryland Charles

7/18/2006 24-025-1001 0.100 ppm 161 24 100 44201 Ozone Maryland Harford

7/18/2006 24-025-9001 0.085 ppm 124 24 100 44201 Ozone Maryland Harford

7/18/2006 24-033-0030 0.080 ppm 111 24 100 44201 Ozone Maryland Prince George's

7/18/2006 24-033-8003 0.102 ppm 166 24 100 44201 Ozone Maryland Prince George's

7/18/2006 51-013-0020 0.097 ppm 154 24 100 44201 Ozone Virginia Arlington

7/18/2006 51-059-0030 0.109 ppm 185 24 100 44201 Ozone Virginia Fairfax

7/18/2006 51-107-1005 0.076 ppm 101 24 100 44201 Ozone Virginia Loudoun

7/18/2006 51-179-0001 0.109 ppm 185 24 100 44201 Ozone Virginia Stafford

7/18/2006 51-510-0009 0.118 ppm 202 24 100 44201 Ozone Virginia Alexandria City

7/19/2006 11-001-0025 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

7/19/2006 11-001-0041 0.080 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

7/19/2006 11-001-0043 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

7/19/2006 24-005-3001 0.081 ppm 114 24 100 44201 Ozone Maryland Baltimore

7/19/2006 24-025-1001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford

7/19/2006 24-025-9001 0.083 ppm 119 24 100 44201 Ozone Maryland Harford

7/19/2006 24-031-3001 0.082 ppm 116 24 100 44201 Ozone Maryland Montgomery
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/19/2006 24-033-0030 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

7/19/2006 51-013-0020 0.085 ppm 124 24 100 44201 Ozone Virginia Arlington

7/19/2006 51-059-0030 0.085 ppm 124 24 100 44201 Ozone Virginia Fairfax

7/19/2006 51-107-1005 0.088 ppm 132 24 100 44201 Ozone Virginia Loudoun

7/19/2006 51-153-0009 0.080 ppm 111 24 100 44201 Ozone Virginia Prince William

7/19/2006 51-179-0001 0.101 ppm 164 24 100 44201 Ozone Virginia Stafford

7/19/2006 51-510-0009 0.083 ppm 119 24 100 44201 Ozone Virginia Alexandria City

7/20/2006 11-001-0043 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

7/20/2006 51-013-0020 0.077 ppm 104 24 100 44201 Ozone Virginia Arlington

7/20/2006 51-107-1005 0.079 ppm 109 24 100 44201 Ozone Virginia Loudoun

7/21/2006 24-005-3001 0.079 ppm 109 24 100 44201 Ozone Maryland Baltimore

7/21/2006 24-025-1001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

7/21/2006 24-025-9001 0.080 ppm 111 24 100 44201 Ozone Maryland Harford

7/21/2006 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

7/21/2006 24-033-8003 0.084 ppm 122 24 100 44201 Ozone Maryland Prince George's

7/24/2006 24-025-1001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford

7/27/2006 24-025-1001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

7/27/2006 24-025-9001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

7/27/2006 24-033-0030 0.079 ppm 109 24 100 44201 Ozone Maryland Prince George's

7/29/2006 24-005-3001 0.079 ppm 109 24 100 44201 Ozone Maryland Baltimore

7/29/2006 24-025-1001 0.076 ppm 101 24 100 44201 Ozone Maryland Harford

7/31/2006 24-003-0014 0.081 ppm 114 24 100 44201 Ozone Maryland Anne Arundel

7/31/2006 24-005-3001 0.087 ppm 129 24 100 44201 Ozone Maryland Baltimore

7/31/2006 24-009-0011 0.086 ppm 127 24 100 44201 Ozone Maryland Calvert
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/31/2006 24-017-0010 0.08 ppm 111 24 100 44201 Ozone Maryland Charles

7/31/2006 24-033-8003 0.084 ppm 122 24 100 44201 Ozone Maryland Prince George's

8/1/2006 11-001-0041 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

8/1/2006 11-001-0043 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

8/1/2006 24-003-0014 0.085 ppm 124 24 100 44201 Ozone Maryland Anne Arundel

8/1/2006 24-005-3001 0.081 ppm 114 24 100 44201 Ozone Maryland Baltimore

8/1/2006 24-009-0011 0.081 ppm 114 24 100 44201 Ozone Maryland Calvert

8/1/2006 24-017-0010 0.078 ppm 106 24 100 44201 Ozone Maryland Charles

8/1/2006 24-025-1001 0.084 ppm 122 24 100 44201 Ozone Maryland Harford

8/1/2006 24-033-8003 0.094 ppm 147 24 100 44201 Ozone Maryland Prince George's

8/1/2006 51-013-0020 0.078 ppm 106 24 100 44201 Ozone Virginia Arlington

8/1/2006 51-059-0030 0.078 ppm 106 24 100 44201 Ozone Virginia Fairfax

8/1/2006 51-510-0009 0.08 ppm 111 24 100 44201 Ozone Virginia Alexandria City

8/2/2006 11-001-0043 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

8/2/2006 24-003-0014 0.078 ppm 106 24 100 44201 Ozone Maryland Anne Arundel

8/2/2006 24-005-1007 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

8/2/2006 24-005-3001 0.077 ppm 104 24 100 44201 Ozone Maryland Baltimore

8/2/2006 24-009-0011 0.082 ppm 116 24 100 44201 Ozone Maryland Calvert

8/2/2006 24-031-3001 0.079 ppm 109 24 100 44201 Ozone Maryland Montgomery

8/2/2006 24-033-0030 0.084 ppm 122 24 100 44201 Ozone Maryland Prince George's

8/2/2006 24-033-8003 0.083 ppm 119 24 100 44201 Ozone Maryland Prince George's

8/2/2006 51-013-0020 0.077 ppm 104 24 100 44201 Ozone Virginia Arlington

8/2/2006 51-510-0009 0.076 ppm 101 24 100 44201 Ozone Virginia Alexandria City

8/3/2006 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

8/3/2006 24-033-8003 0.078 ppm 106 24 100 44201 Ozone Maryland Prince George's

8/6/2006 11-001-0025 0.081 ppm 114 24 100 44201 Ozone District Of Columbia District of Columbia

8/6/2006 11-001-0043 0.084 ppm 122 24 100 44201 Ozone District Of Columbia District of Columbia
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

8/6/2006 24-005-1007 0.081 ppm 114 24 100 44201 Ozone Maryland Baltimore

8/6/2006 24-005-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

8/6/2006 24-013-0001 0.082 ppm 116 24 100 44201 Ozone Maryland Carroll

8/6/2006 24-021-0037 0.076 ppm 101 24 100 44201 Ozone Maryland Frederick

8/6/2006 24-031-3001 0.088 ppm 132 24 100 44201 Ozone Maryland Montgomery

8/6/2006 24-033-0030 0.084 ppm 122 24 100 44201 Ozone Maryland Prince George's

8/6/2006 51-510-0009 0.076 ppm 101 24 100 44201 Ozone Virginia Alexandria City

8/7/2006 11-001-0041 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

8/7/2006 11-001-0043 0.077 ppm 104 24 100 44201 Ozone District Of Columbia District of Columbia

8/7/2006 24-005-3001 0.08 ppm 111 24 100 44201 Ozone Maryland Baltimore

8/7/2006 24-025-1001 0.089 ppm 135 24 100 44201 Ozone Maryland Harford

8/7/2006 24-025-9001 0.092 ppm 142 24 100 44201 Ozone Maryland Harford

8/7/2006 24-033-0030 0.083 ppm 119 24 100 44201 Ozone Maryland Prince George's

8/7/2006 51-510-0009 0.078 ppm 106 24 100 44201 Ozone Virginia Alexandria City

8/13/2006 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

8/16/2006 11-001-0043 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

8/16/2006 24-033-0030 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

8/16/2006 51-059-0030 0.085 ppm 124 24 100 44201 Ozone Virginia Fairfax

8/16/2006 51-179-0001 0.082 ppm 116 24 100 44201 Ozone Virginia Stafford

8/16/2006 51-510-0009 0.076 ppm 101 24 100 44201 Ozone Virginia Alexandria City

8/17/2006 51-061-0002 0.076 ppm 101 24 100 44201 Ozone Virginia Fauquier

8/17/2006 51-107-1005 0.082 ppm 116 24 100 44201 Ozone Virginia Loudoun

8/17/2006 51-153-0009 0.086 ppm 127 24 100 44201 Ozone Virginia Prince William

8/18/2006 24-013-0001 0.078 ppm 106 24 100 44201 Ozone Maryland Carroll

8/18/2006 24-021-0037 0.086 ppm 127 24 100 44201 Ozone Maryland Frederick

8/18/2006 51-107-1005 0.084 ppm 122 24 100 44201 Ozone Virginia Loudoun
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

8/18/2006 51-153-0009 0.077 ppm 104 24 100 44201 Ozone Virginia Prince William

8/22/2006 11-001-0041 0.081 ppm 114 24 100 44201 Ozone District Of Columbia District of Columbia

8/22/2006 11-001-0043 0.081 ppm 114 24 100 44201 Ozone District Of Columbia District of Columbia

8/22/2006 24-005-3001 0.088 ppm 132 24 100 44201 Ozone Maryland Baltimore

8/22/2006 24-025-1001 0.087 ppm 129 24 100 44201 Ozone Maryland Harford

8/22/2006 24-025-9001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

8/22/2006 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

8/22/2006 24-510-0054 0.078 ppm 106 24 100 44201 Ozone Maryland Baltimore (City)

8/22/2006 51-013-0020 0.076 ppm 101 24 100 44201 Ozone Virginia Arlington

8/22/2006 51-059-0030 0.081 ppm 114 24 100 44201 Ozone Virginia Fairfax

8/22/2006 51-510-0009 0.078 ppm 106 24 100 44201 Ozone Virginia Alexandria City

8/23/2006 11-001-0025 0.081 ppm 114 24 100 44201 Ozone District Of Columbia District of Columbia

8/23/2006 11-001-0041 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia

8/23/2006 11-001-0043 0.090 ppm 137 24 100 44201 Ozone District Of Columbia District of Columbia

8/23/2006 24-003-0014 0.090 ppm 137 24 100 44201 Ozone Maryland Anne Arundel

8/23/2006 24-009-0011 0.090 ppm 137 24 100 44201 Ozone Maryland Calvert

8/23/2006 24-017-0010 0.089 ppm 135 24 100 44201 Ozone Maryland Charles

8/23/2006 24-021-0037 0.076 ppm 101 24 100 44201 Ozone Maryland Frederick

8/23/2006 24-031-3001 0.077 ppm 104 24 100 44201 Ozone Maryland Montgomery

8/23/2006 24-033-0030 0.081 ppm 114 24 100 44201 Ozone Maryland Prince George's

8/23/2006 51-013-0020 0.080 ppm 111 24 100 44201 Ozone Virginia Arlington

8/23/2006 51-059-0030 0.087 ppm 129 24 100 44201 Ozone Virginia Fairfax

8/23/2006 51-107-1005 0.082 ppm 116 24 100 44201 Ozone Virginia Loudoun

8/23/2006 51-153-0009 0.077 ppm 104 24 100 44201 Ozone Virginia Prince William

8/23/2006 51-179-0001 0.091 ppm 140 24 100 44201 Ozone Virginia Stafford

8/23/2006 51-510-0009 0.084 ppm 122 24 100 44201 Ozone Virginia Alexandria City

8/24/2006 11-001-0041 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

8/24/2006 11-001-0043 0.082 ppm 116 24 100 44201 Ozone District Of Columbia District of Columbia

8/24/2006 24-003-0014 0.086 ppm 127 24 100 44201 Ozone Maryland Anne Arundel

8/24/2006 24-005-3001 0.085 ppm 124 24 100 44201 Ozone Maryland Baltimore

8/24/2006 24-009-0011 0.087 ppm 129 24 100 44201 Ozone Maryland Calvert

8/24/2006 24-017-0010 0.085 ppm 124 24 100 44201 Ozone Maryland Charles

8/24/2006 24-021-0037 0.077 ppm 104 24 100 44201 Ozone Maryland Frederick

8/24/2006 24-025-1001 0.080 ppm 111 24 100 44201 Ozone Maryland Harford

8/24/2006 24-033-0030 0.083 ppm 119 24 100 44201 Ozone Maryland Prince George's

8/24/2006 51-059-0030 0.080 ppm 111 24 100 44201 Ozone Virginia Fairfax

8/24/2006 51-107-1005 0.077 ppm 104 24 100 44201 Ozone Virginia Loudoun

8/24/2006 51-510-0009 0.076 ppm 101 24 100 44201 Ozone Virginia Alexandria City

8/25/2006 11-001-0025 0.080 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

8/25/2006 11-001-0041 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

8/25/2006 11-001-0043 0.083 ppm 119 24 100 44201 Ozone District Of Columbia District of Columbia

8/25/2006 24-003-0014 0.084 ppm 122 24 100 44201 Ozone Maryland Anne Arundel

8/25/2006 24-005-1007 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

8/25/2006 24-005-3001 0.098 ppm 156 24 100 44201 Ozone Maryland Baltimore

8/25/2006 24-009-0011 0.080 ppm 111 24 100 44201 Ozone Maryland Calvert

8/25/2006 24-013-0001 0.076 ppm 101 24 100 44201 Ozone Maryland Carroll

8/25/2006 24-017-0010 0.078 ppm 106 24 100 44201 Ozone Maryland Charles

8/25/2006 24-021-0037 0.085 ppm 124 24 100 44201 Ozone Maryland Frederick

8/25/2006 24-025-1001 0.085 ppm 124 24 100 44201 Ozone Maryland Harford

8/25/2006 24-025-9001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford

8/25/2006 24-031-3001 0.080 ppm 111 24 100 44201 Ozone Maryland Montgomery

8/25/2006 24-033-0030 0.085 ppm 124 24 100 44201 Ozone Maryland Prince George's

8/25/2006 24-033-8003 0.095 ppm 150 15 63 44201 Ozone Maryland Prince George's

8/25/2006 24-510-0054 0.085 ppm 124 24 100 44201 Ozone Maryland Baltimore (City)

8/25/2006 51-013-0020 0.081 ppm 114 24 100 44201 Ozone Virginia Arlington
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

8/25/2006 51-059-0030 0.086 ppm 127 24 100 44201 Ozone Virginia Fairfax

8/25/2006 51-107-1005 0.081 ppm 114 24 100 44201 Ozone Virginia Loudoun

8/25/2006 51-153-0009 0.076 ppm 101 24 100 44201 Ozone Virginia Prince William

8/25/2006 51-510-0009 0.083 ppm 119 24 100 44201 Ozone Virginia Alexandria City

8/26/2006 51-061-0002 0.086 ppm 127 24 100 44201 Ozone Virginia Fauquier

8/26/2006 51-107-1005 0.082 ppm 116 24 100 44201 Ozone Virginia Loudoun

8/26/2006 51-153-0009 0.090 ppm 137 24 100 44201 Ozone Virginia Prince William

8/26/2006 51-179-0001 0.081 ppm 114 24 100 44201 Ozone Virginia Stafford

2007 2007 2007 2007

5/22/2007 24-021-0037 0.078 ppm 106 24 100 44201 Ozone Maryland Frederick

5/25/2007 11-001-0025 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

5/25/2007 11-001-0041 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

5/25/2007 24-021-0037 0.076 ppm 101 24 100 44201 Ozone Maryland Frederick

5/25/2007 24-025-9001 0.078 ppm 106 24 100 44201 Ozone Maryland Harford

5/25/2007 24-033-0030 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

5/25/2007 51-107-1005 0.080 ppm 111 24 100 44201 Ozone Virginia Loudoun

5/26/2007 11-001-0041 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

5/26/2007 11-001-0043 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

5/26/2007 24-003-0014 0.085 ppm 124 24 100 44201 Ozone Maryland Anne Arundel

5/26/2007 24-005-3001 0.083 ppm 119 24 100 44201 Ozone Maryland Baltimore

5/26/2007 24-009-0011 0.079 ppm 109 24 100 44201 Ozone Maryland Calvert

5/26/2007 24-017-0010 0.080 ppm 111 24 100 44201 Ozone Maryland Charles

5/26/2007 24-033-8003 0.091 ppm 140 24 100 44201 Ozone Maryland Prince George's

5/26/2007 51-013-0020 0.080 ppm 111 24 100 44201 Ozone Virginia Arlington

5/26/2007 51-059-0030 0.079 ppm 109 24 100 44201 Ozone Virginia Fairfax

5/26/2007 51-510-0009 0.080 ppm 111 24 100 44201 Ozone Virginia Alexandria City
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

5/27/2007 24-025-1001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford

5/27/2007 24-025-9001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

5/29/2007 11-001-0043 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

5/29/2007 24-003-0014 0.076 ppm 101 24 100 44201 Ozone Maryland Anne Arundel

5/29/2007 51-059-0030 0.076 ppm 101 24 100 44201 Ozone Virginia Fairfax

5/29/2007 51-179-0001 0.089 ppm 135 24 100 44201 Ozone Virginia Stafford

5/30/2007 11-001-0025 0.084 ppm 122 24 100 44201 Ozone District Of Columbia District of Columbia

5/30/2007 11-001-0041 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

5/30/2007 11-001-0043 0.086 ppm 127 24 100 44201 Ozone District Of Columbia District of Columbia

5/30/2007 24-005-3001 0.080 ppm 111 24 100 44201 Ozone Maryland Baltimore

5/30/2007 24-013-0001 0.080 ppm 111 24 100 44201 Ozone Maryland Carroll

5/30/2007 24-017-0010 0.077 ppm 104 24 100 44201 Ozone Maryland Charles

5/30/2007 24-021-0037 0.089 ppm 135 24 100 44201 Ozone Maryland Frederick

5/30/2007 24-025-1001 0.089 ppm 135 24 100 44201 Ozone Maryland Harford

5/30/2007 24-025-9001 0.100 ppm 161 24 100 44201 Ozone Maryland Harford

5/30/2007 24-033-0030 0.085 ppm 124 17 71 44201 Ozone Maryland Prince George's

5/30/2007 24-033-8003 0.079 ppm 109 24 100 44201 Ozone Maryland Prince George's

5/30/2007 51-013-0020 0.085 ppm 124 24 100 44201 Ozone Virginia Arlington

5/30/2007 51-059-0030 0.082 ppm 116 24 100 44201 Ozone Virginia Fairfax

5/30/2007 51-107-1005 0.079 ppm 109 24 100 44201 Ozone Virginia Loudoun

5/30/2007 51-153-0009 0.078 ppm 106 24 100 44201 Ozone Virginia Prince William

5/30/2007 51-179-0001 0.083 ppm 119 24 100 44201 Ozone Virginia Stafford

5/30/2007 51-510-0009 0.081 ppm 114 24 100 44201 Ozone Virginia Alexandria City

5/31/2007 11-001-0043 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

5/31/2007 24-003-0014 0.077 ppm 104 24 100 44201 Ozone Maryland Anne Arundel

5/31/2007 24-005-1007 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

5/31/2007 24-005-3001 0.078 ppm 106 24 100 44201 Ozone Maryland Baltimore
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

5/31/2007 24-009-0011 0.079 ppm 109 24 100 44201 Ozone Maryland Calvert

5/31/2007 24-013-0001 0.088 ppm 132 24 100 44201 Ozone Maryland Carroll

5/31/2007 24-017-0010 0.078 ppm 106 24 100 44201 Ozone Maryland Charles

5/31/2007 24-021-0037 0.086 ppm 127 24 100 44201 Ozone Maryland Frederick

5/31/2007 24-025-1001 0.086 ppm 127 24 100 44201 Ozone Maryland Harford

5/31/2007 24-025-9001 0.086 ppm 127 24 100 44201 Ozone Maryland Harford

5/31/2007 24-033-0030 0.084 ppm 122 24 100 44201 Ozone Maryland Prince George's

5/31/2007 24-033-8003 0.080 ppm 111 24 100 44201 Ozone Maryland Prince George's

5/31/2007 51-013-0020 0.077 ppm 104 24 100 44201 Ozone Virginia Arlington

5/31/2007 51-107-1005 0.086 ppm 127 24 100 44201 Ozone Virginia Loudoun

5/31/2007 51-153-0009 0.076 ppm 101 24 100 44201 Ozone Virginia Prince William

5/31/2007 51-179-0001 0.076 ppm 101 24 100 44201 Ozone Virginia Stafford

6/1/2007 11-001-0025 0.077 ppm 104 24 100 44201 Ozone District Of Columbia District of Columbia

6/1/2007 24-013-0001 0.082 ppm 116 24 100 44201 Ozone Maryland Carroll

6/1/2007 24-021-0037 0.076 ppm 101 24 100 44201 Ozone Maryland Frederick

6/1/2007 24-025-1001 0.080 ppm 111 24 100 44201 Ozone Maryland Harford

6/1/2007 24-025-9001 0.084 ppm 122 24 100 44201 Ozone Maryland Harford

6/1/2007 24-033-0030 0.080 ppm 111 24 100 44201 Ozone Maryland Prince George's

6/1/2007 51-013-0020 0.079 ppm 109 24 100 44201 Ozone Virginia Arlington

6/1/2007 51-107-1005 0.076 ppm 101 24 100 44201 Ozone Virginia Loudoun

6/2/2007 24-013-0001 0.079 ppm 109 24 100 44201 Ozone Maryland Carroll

6/7/2007 11-001-0043 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

6/7/2007 24-013-0001 0.081 ppm 114 24 100 44201 Ozone Maryland Carroll

6/7/2007 51-013-0020 0.079 ppm 109 24 100 44201 Ozone Virginia Arlington

6/7/2007 51-059-0030 0.078 ppm 106 24 100 44201 Ozone Virginia Fairfax

6/8/2007 11-001-0041 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

6/8/2007 11-001-0043 0.077 ppm 104 24 100 44201 Ozone District Of Columbia District of Columbia
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

6/8/2007 24-003-0014 0.085 ppm 124 24 100 44201 Ozone Maryland Anne Arundel

6/8/2007 24-005-3001 0.085 ppm 124 24 100 44201 Ozone Maryland Baltimore

6/8/2007 24-025-1001 0.099 ppm 159 24 100 44201 Ozone Maryland Harford

6/8/2007 24-025-9001 0.108 ppm 182 24 100 44201 Ozone Maryland Harford

6/8/2007 24-033-8003 0.078 ppm 106 24 100 44201 Ozone Maryland Prince George's

6/8/2007 51-013-0020 0.081 ppm 114 24 100 44201 Ozone Virginia Arlington

6/11/2007 51-179-0001 0.076 ppm 101 24 100 44201 Ozone Virginia Stafford

6/18/2007 11-001-0025 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

6/18/2007 11-001-0041 0.090 ppm 137 24 100 44201 Ozone District Of Columbia District of Columbia

6/18/2007 11-001-0043 0.093 ppm 145 24 100 44201 Ozone District Of Columbia District of Columbia

6/18/2007 24-003-0014 0.103 ppm 169 24 100 44201 Ozone Maryland Anne Arundel

6/18/2007 24-005-3001 0.090 ppm 137 24 100 44201 Ozone Maryland Baltimore

6/18/2007 24-009-0011 0.082 ppm 116 24 100 44201 Ozone Maryland Calvert

6/18/2007 24-013-0001 0.081 ppm 114 24 100 44201 Ozone Maryland Carroll

6/18/2007 24-017-0010 0.100 ppm 161 24 100 44201 Ozone Maryland Charles

6/18/2007 24-021-0037 0.083 ppm 119 24 100 44201 Ozone Maryland Frederick

6/18/2007 24-025-1001 0.088 ppm 132 24 100 44201 Ozone Maryland Harford

6/18/2007 24-025-9001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

6/18/2007 24-031-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Montgomery

6/18/2007 24-033-0030 0.082 ppm 116 24 100 44201 Ozone Maryland Prince George's

6/18/2007 24-033-8003 0.097 ppm 154 24 100 44201 Ozone Maryland Prince George's

6/18/2007 24-510-0054 0.085 ppm 124 24 100 44201 Ozone Maryland Baltimore (City)

6/18/2007 51-013-0020 0.085 ppm 124 24 100 44201 Ozone Virginia Arlington

6/18/2007 51-059-0030 0.090 ppm 137 24 100 44201 Ozone Virginia Fairfax

6/18/2007 51-107-1005 0.087 ppm 129 24 100 44201 Ozone Virginia Loudoun

6/18/2007 51-179-0001 0.085 ppm 124 24 100 44201 Ozone Virginia Stafford
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

6/18/2007 51-510-0009 0.084 ppm 122 24 100 44201 Ozone Virginia Alexandria City

6/19/2007 11-001-0041 0.080 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

6/19/2007 11-001-0043 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

6/19/2007 24-009-0011 0.079 ppm 109 24 100 44201 Ozone Maryland Calvert

6/19/2007 24-013-0001 0.092 ppm 142 24 100 44201 Ozone Maryland Carroll

6/19/2007 24-017-0010 0.083 ppm 119 24 100 44201 Ozone Maryland Charles

6/19/2007 24-021-0037 0.080 ppm 111 24 100 44201 Ozone Maryland Frederick

6/19/2007 24-025-1001 0.083 ppm 119 24 100 44201 Ozone Maryland Harford

6/19/2007 24-025-9001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

6/19/2007 24-031-3001 0.077 ppm 104 24 100 44201 Ozone Maryland Montgomery

6/19/2007 24-033-0030 0.079 ppm 109 18 75 44201 Ozone Maryland Prince George's

6/19/2007 51-013-0020 0.088 ppm 132 24 100 44201 Ozone Virginia Arlington

6/19/2007 51-059-0030 0.082 ppm 116 24 100 44201 Ozone Virginia Fairfax

6/19/2007 51-107-1005 0.086 ppm 127 24 100 44201 Ozone Virginia Loudoun

6/19/2007 51-510-0009 0.083 ppm 119 24 100 44201 Ozone Virginia Alexandria City

6/25/2007 24-013-0001 0.080 ppm 111 24 100 44201 Ozone Maryland Carroll

6/25/2007 24-021-0037 0.077 ppm 104 24 100 44201 Ozone Maryland Frederick

6/26/2007 11-001-0025 0.077 ppm 104 24 100 44201 Ozone District Of Columbia District of Columbia

6/26/2007 24-013-0001 0.091 ppm 140 24 100 44201 Ozone Maryland Carroll

6/26/2007 24-017-0010 0.077 ppm 104 24 100 44201 Ozone Maryland Charles

6/26/2007 24-021-0037 0.083 ppm 119 24 100 44201 Ozone Maryland Frederick

6/26/2007 24-025-9001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford

6/26/2007 24-031-3001 0.091 ppm 140 24 100 44201 Ozone Maryland Montgomery

6/26/2007 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

6/26/2007 51-107-1005 0.081 ppm 114 24 100 44201 Ozone Virginia Loudoun

6/27/2007 24-005-3001 0.080 ppm 111 24 100 44201 Ozone Maryland Baltimore

6/27/2007 24-025-1001 0.078 ppm 106 24 100 44201 Ozone Maryland Harford
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

6/27/2007 24-025-9001 0.092 ppm 142 24 100 44201 Ozone Maryland Harford

6/27/2007 51-013-0020 0.078 ppm 106 24 100 44201 Ozone Virginia Arlington

6/27/2007 51-059-0030 0.078 ppm 106 24 100 44201 Ozone Virginia Fairfax

6/27/2007 51-510-0009 0.081 ppm 114 24 100 44201 Ozone Virginia Alexandria City

7/7/2007 24-003-0014 0.081 ppm 114 24 100 44201 Ozone Maryland Anne Arundel

7/7/2007 24-033-8003 0.078 ppm 106 24 100 44201 Ozone Maryland Prince George's

7/8/2007 24-003-0014 0.077 ppm 104 24 100 44201 Ozone Maryland Anne Arundel

7/8/2007 24-025-1001 0.091 ppm 140 24 100 44201 Ozone Maryland Harford

7/9/2007 11-001-0025 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

7/9/2007 11-001-0041 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia

7/9/2007 11-001-0043 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia

7/9/2007 24-003-0014 0.089 ppm 135 24 100 44201 Ozone Maryland Anne Arundel

7/9/2007 24-005-3001 0.094 ppm 147 24 100 44201 Ozone Maryland Baltimore

7/9/2007 24-009-0011 0.078 ppm 106 24 100 44201 Ozone Maryland Calvert

7/9/2007 24-013-0001 0.081 ppm 114 24 100 44201 Ozone Maryland Carroll

7/9/2007 24-021-0037 0.076 ppm 101 24 100 44201 Ozone Maryland Frederick

7/9/2007 24-025-1001 0.113 ppm 195 24 100 44201 Ozone Maryland Harford

7/9/2007 24-025-9001 0.113 ppm 195 24 100 44201 Ozone Maryland Harford

7/9/2007 24-031-3001 0.078 ppm 106 24 100 44201 Ozone Maryland Montgomery

7/9/2007 24-033-0030 0.086 ppm 127 24 100 44201 Ozone Maryland Prince George's

7/9/2007 24-033-8003 0.081 ppm 114 24 100 44201 Ozone Maryland Prince George's

7/9/2007 24-510-0054 0.079 ppm 109 24 100 44201 Ozone Maryland Baltimore (City)

7/9/2007 51-013-0020 0.085 ppm 124 24 100 44201 Ozone Virginia Arlington

7/9/2007 51-059-0030 0.085 ppm 124 24 100 44201 Ozone Virginia Fairfax

7/9/2007 51-510-0009 0.085 ppm 124 24 100 44201 Ozone Virginia Alexandria City

7/10/2007 24-013-0001 0.076 ppm 101 24 100 44201 Ozone Maryland Carroll
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/14/2007 24-025-1001 0.078 ppm 106 24 100 44201 Ozone Maryland Harford

7/14/2007 24-025-9001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

7/15/2007 24-025-9001 0.084 ppm 122 24 100 44201 Ozone Maryland Harford

7/16/2007 24-003-0014 0.084 ppm 122 24 100 44201 Ozone Maryland Anne Arundel

7/16/2007 24-033-8003 0.080 ppm 111 24 100 44201 Ozone Maryland Prince George's

7/17/2007 11-001-0025 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia

7/17/2007 11-001-0041 0.091 ppm 140 24 100 44201 Ozone District Of Columbia District of Columbia

7/17/2007 11-001-0043 0.092 ppm 142 24 100 44201 Ozone District Of Columbia District of Columbia

7/17/2007 24-003-0014 0.091 ppm 140 24 100 44201 Ozone Maryland Anne Arundel

7/17/2007 24-009-0011 0.076 ppm 101 24 100 44201 Ozone Maryland Calvert

7/17/2007 24-013-0001 0.089 ppm 135 24 100 44201 Ozone Maryland Carroll

7/17/2007 24-017-0010 0.083 ppm 119 24 100 44201 Ozone Maryland Charles

7/17/2007 24-021-0037 0.083 ppm 119 24 100 44201 Ozone Maryland Frederick

7/17/2007 24-031-3001 0.088 ppm 132 24 100 44201 Ozone Maryland Montgomery

7/17/2007 24-033-0030 0.084 ppm 122 24 100 44201 Ozone Maryland Prince George's

7/17/2007 24-033-8003 0.088 ppm 132 24 100 44201 Ozone Maryland Prince George's

7/17/2007 51-013-0020 0.095 ppm 150 24 100 44201 Ozone Virginia Arlington

7/17/2007 51-059-0030 0.094 ppm 147 24 100 44201 Ozone Virginia Fairfax

7/17/2007 51-107-1005 0.080 ppm 111 24 100 44201 Ozone Virginia Loudoun

7/17/2007 51-153-0009 0.076 ppm 101 24 100 44201 Ozone Virginia Prince William

7/17/2007 51-179-0001 0.088 ppm 132 24 100 44201 Ozone Virginia Stafford

7/17/2007 51-510-0009 0.090 ppm 137 24 100 44201 Ozone Virginia Alexandria City

7/26/2007 24-021-0037 0.082 ppm 116 24 100 44201 Ozone Maryland Frederick

7/26/2007 24-031-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Montgomery

7/26/2007 51-107-1005 0.077 ppm 104 24 100 44201 Ozone Virginia Loudoun

7/28/2007 11-001-0041 0.082 ppm 116 24 100 44201 Ozone District Of Columbia District of Columbia
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/28/2007 24-005-3001 0.080 ppm 111 24 100 44201 Ozone Maryland Baltimore

7/28/2007 24-025-1001 0.076 ppm 101 24 100 44201 Ozone Maryland Harford

7/28/2007 24-033-0030 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

7/28/2007 51-013-0020 0.088 ppm 132 24 100 44201 Ozone Virginia Arlington

7/28/2007 51-510-0009 0.078 ppm 106 24 100 44201 Ozone Virginia Alexandria City

7/31/2007 24-003-0014 0.082 ppm 116 24 100 44201 Ozone Maryland Anne Arundel

7/31/2007 24-033-8003 0.078 ppm 106 24 100 44201 Ozone Maryland Prince George's

7/31/2007 51-059-0030 0.077 ppm 104 24 100 44201 Ozone Virginia Fairfax

7/31/2007 51-179-0001 0.077 ppm 104 24 100 44201 Ozone Virginia Stafford

8/1/2007 24-003-0014 0.084 ppm 122 24 100 44201 Ozone Maryland Anne Arundel

8/1/2007 24-017-0010 0.077 ppm 104 24 100 44201 Ozone Maryland Charles

8/1/2007 24-033-8003 0.081 ppm 114 24 100 44201 Ozone Maryland Prince George's

8/1/2007 51-013-0020 0.080 ppm 111 24 100 44201 Ozone Virginia Arlington

8/1/2007 51-059-0030 0.080 ppm 111 24 100 44201 Ozone Virginia Fairfax

8/1/2007 51-179-0001 0.085 ppm 124 24 100 44201 Ozone Virginia Stafford

8/1/2007 51-510-0009 0.076 ppm 101 24 100 44201 Ozone Virginia Alexandria City

8/2/2007 11-001-0025 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

8/2/2007 24-003-0014 0.076 ppm 101 24 100 44201 Ozone Maryland Anne Arundel

8/2/2007 24-005-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

8/2/2007 24-013-0001 0.095 ppm 150 24 100 44201 Ozone Maryland Carroll

8/2/2007 24-021-0037 0.088 ppm 132 24 100 44201 Ozone Maryland Frederick

8/2/2007 24-025-1001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

8/2/2007 24-025-9001 0.085 ppm 124 24 100 44201 Ozone Maryland Harford

8/2/2007 24-031-3001 0.103 ppm 169 24 100 44201 Ozone Maryland Montgomery

8/2/2007 24-033-0030 0.084 ppm 122 24 100 44201 Ozone Maryland Prince George's

8/2/2007 24-033-8003 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

8/2/2007 51-107-1005 0.091 ppm 140 24 100 44201 Ozone Virginia Loudoun
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

8/2/2007 51-179-0001 0.079 ppm 109 24 100 44201 Ozone Virginia Stafford

8/3/2007 11-001-0025 0.083 ppm 119 24 100 44201 Ozone District Of Columbia District of Columbia

8/3/2007 24-013-0001 0.077 ppm 104 24 100 44201 Ozone Maryland Carroll

8/3/2007 24-017-0010 0.077 ppm 104 24 100 44201 Ozone Maryland Charles

8/3/2007 24-025-1001 0.078 ppm 106 24 100 44201 Ozone Maryland Harford

8/3/2007 24-025-9001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

8/3/2007 24-031-3001 0.083 ppm 119 24 100 44201 Ozone Maryland Montgomery

8/3/2007 24-033-0030 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

8/4/2007 11-001-0025 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

8/4/2007 11-001-0041 0.089 ppm 135 24 100 44201 Ozone District Of Columbia District of Columbia

8/4/2007 11-001-0043 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

8/4/2007 24-003-0014 0.118 ppm 202 24 100 44201 Ozone Maryland Anne Arundel

8/4/2007 24-005-3001 0.082 ppm 116 24 100 44201 Ozone Maryland Baltimore

8/4/2007 24-009-0011 0.089 ppm 135 24 100 44201 Ozone Maryland Calvert

8/4/2007 24-013-0001 0.077 ppm 104 24 100 44201 Ozone Maryland Carroll

8/4/2007 24-017-0010 0.092 ppm 142 24 100 44201 Ozone Maryland Charles

8/4/2007 24-021-0037 0.079 ppm 109 24 100 44201 Ozone Maryland Frederick

8/4/2007 24-025-1001 0.087 ppm 129 24 100 44201 Ozone Maryland Harford

8/4/2007 24-025-9001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

8/4/2007 24-031-3001 0.082 ppm 116 24 100 44201 Ozone Maryland Montgomery

8/4/2007 24-033-0030 0.082 ppm 116 24 100 44201 Ozone Maryland Prince George's

8/4/2007 24-033-8003 0.110 ppm 187 24 100 44201 Ozone Maryland Prince George's

8/4/2007 51-013-0020 0.088 ppm 132 24 100 44201 Ozone Virginia Arlington

8/4/2007 51-059-0030 0.088 ppm 132 24 100 44201 Ozone Virginia Fairfax

8/4/2007 51-107-1005 0.080 ppm 111 24 100 44201 Ozone Virginia Loudoun

8/4/2007 51-179-0001 0.081 ppm 114 24 100 44201 Ozone Virginia Stafford

8/4/2007 51-510-0009 0.085 ppm 124 24 100 44201 Ozone Virginia Alexandria City

8/5/2007 24-013-0001 0.079 ppm 109 24 100 44201 Ozone Maryland Carroll
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

8/5/2007 51-107-1005 0.079 ppm 109 24 100 44201 Ozone Virginia Loudoun

8/5/2007 51-153-0009 0.076 ppm 101 24 100 44201 Ozone Virginia Prince William

8/6/2007 24-025-1001 0.085 ppm 124 24 100 44201 Ozone Maryland Harford

8/6/2007 24-025-9001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford

8/7/2007 11-001-0025 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

8/7/2007 11-001-0041 0.091 ppm 140 24 100 44201 Ozone District Of Columbia District of Columbia

8/7/2007 11-001-0043 0.089 ppm 135 24 100 44201 Ozone District Of Columbia District of Columbia

8/7/2007 24-003-0014 0.080 ppm 111 24 100 44201 Ozone Maryland Anne Arundel

8/7/2007 24-005-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

8/7/2007 24-017-0010 0.080 ppm 111 24 100 44201 Ozone Maryland Charles

8/7/2007 24-025-1001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

8/7/2007 24-033-0030 0.089 ppm 135 24 100 44201 Ozone Maryland Prince George's

8/7/2007 24-033-8003 0.082 ppm 116 24 100 44201 Ozone Maryland Prince George's

8/7/2007 51-013-0020 0.086 ppm 127 24 100 44201 Ozone Virginia Arlington

8/7/2007 51-059-0030 0.079 ppm 109 24 100 44201 Ozone Virginia Fairfax

8/7/2007 51-510-0009 0.083 ppm 119 24 100 44201 Ozone Virginia Alexandria City

8/12/2007 24-005-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

8/12/2007 24-025-1001 0.087 ppm 129 24 100 44201 Ozone Maryland Harford

8/13/2007 24-017-0010 0.076 ppm 101 24 100 44201 Ozone Maryland Charles

8/14/2007 24-017-0010 0.077 ppm 104 24 100 44201 Ozone Maryland Charles

8/15/2007 11-001-0025 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

8/15/2007 11-001-0041 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia

8/15/2007 11-001-0043 0.084 ppm 122 24 100 44201 Ozone District Of Columbia District of Columbia

8/15/2007 24-003-0014 0.089 ppm 135 24 100 44201 Ozone Maryland Anne Arundel

8/15/2007 24-005-3001 0.077 ppm 104 24 100 44201 Ozone Maryland Baltimore

8/15/2007 24-025-1001 0.090 ppm 137 24 100 44201 Ozone Maryland Harford

8/15/2007 24-025-9001 0.085 ppm 124 24 100 44201 Ozone Maryland Harford
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

8/15/2007 24-033-8003 0.080 ppm 111 24 100 44201 Ozone Maryland Prince George's

8/15/2007 51-013-0020 0.084 ppm 122 24 100 44201 Ozone Virginia Arlington

8/15/2007 51-059-0030 0.078 ppm 106 24 100 44201 Ozone Virginia Fairfax

8/16/2007 24-009-0011 0.076 ppm 101 24 100 44201 Ozone Maryland Calvert

8/17/2007 24-003-0014 0.084 ppm 122 24 100 44201 Ozone Maryland Anne Arundel

8/17/2007 24-025-1001 0.084 ppm 122 24 100 44201 Ozone Maryland Harford

8/17/2007 24-033-8003 0.080 ppm 111 24 100 44201 Ozone Maryland Prince George's

8/24/2007 24-013-0001 0.080 ppm 111 24 100 44201 Ozone Maryland Carroll

8/24/2007 24-031-3001 0.077 ppm 104 24 100 44201 Ozone Maryland Montgomery

8/25/2007 24-013-0001 0.080 ppm 111 24 100 44201 Ozone Maryland Carroll

8/25/2007 24-017-0010 0.077 ppm 104 24 100 44201 Ozone Maryland Charles

8/25/2007 24-025-1001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

8/25/2007 24-025-9001 0.083 ppm 119 24 100 44201 Ozone Maryland Harford

8/25/2007 24-031-3001 0.088 ppm 132 24 100 44201 Ozone Maryland Montgomery

8/30/2007 11-001-0041 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

8/30/2007 11-001-0043 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

8/30/2007 24-003-0014 0.076 ppm 101 24 100 44201 Ozone Maryland Anne Arundel

8/30/2007 24-025-1001 0.086 ppm 127 24 100 44201 Ozone Maryland Harford

8/30/2007 24-025-9001 0.085 ppm 124 24 100 44201 Ozone Maryland Harford

8/30/2007 51-013-0020 0.077 ppm 104 24 100 44201 Ozone Virginia Arlington

9/4/2007 24-017-0010 0.078 ppm 106 24 100 44201 Ozone Maryland Charles

9/5/2007 11-001-0041 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

9/5/2007 24-013-0001 0.089 ppm 135 24 100 44201 Ozone Maryland Carroll

9/5/2007 24-021-0037 0.088 ppm 132 24 100 44201 Ozone Maryland Frederick

9/5/2007 24-025-1001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

9/5/2007 24-025-9001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

9/5/2007 24-031-3001 0.082 ppm 116 24 100 44201 Ozone Maryland Montgomery

9/5/2007 51-107-1005 0.087 ppm 129 24 100 44201 Ozone Virginia Loudoun

9/5/2007 51-153-0009 0.082 ppm 116 24 100 44201 Ozone Virginia Prince William

9/6/2007 24-013-0001 0.076 ppm 101 24 100 44201 Ozone Maryland Carroll

9/6/2007 24-021-0037 0.078 ppm 106 24 100 44201 Ozone Maryland Frederick

9/6/2007 24-031-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Montgomery

9/7/2007 24-013-0001 0.085 ppm 124 24 100 44201 Ozone Maryland Carroll

9/7/2007 24-021-0037 0.081 ppm 114 24 100 44201 Ozone Maryland Frederick

9/7/2007 24-031-3001 0.083 ppm 119 24 100 44201 Ozone Maryland Montgomery

9/8/2007 24-013-0001 0.078 ppm 106 24 100 44201 Ozone Maryland Carroll

9/8/2007 24-031-3001 0.078 ppm 106 24 100 44201 Ozone Maryland Montgomery

9/25/2007 24-013-0001 0.087 ppm 129 24 100 44201 Ozone Maryland Carroll

9/25/2007 24-021-0037 0.086 ppm 127 24 100 44201 Ozone Maryland Frederick

9/25/2007 24-031-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Montgomery

9/25/2007 51-107-1005 0.078 ppm 106 24 100 44201 Ozone Virginia Loudoun

9/26/2007 24-003-0014 0.080 ppm 111 24 100 44201 Ozone Maryland Anne Arundel

9/26/2007 24-009-0011 0.078 ppm 106 24 100 44201 Ozone Maryland Calvert

9/26/2007 24-017-0010 0.084 ppm 122 24 100 44201 Ozone Maryland Charles

9/26/2007 24-025-1001 0.084 ppm 122 24 100 44201 Ozone Maryland Harford

9/26/2007 24-025-9001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

9/26/2007 24-031-3001 0.079 ppm 109 24 100 44201 Ozone Maryland Montgomery

9/26/2007 24-033-8003 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

9/26/2007 51-013-0020 0.077 ppm 104 24 100 44201 Ozone Virginia Arlington

10/9/2007 24-003-0014 0.079 ppm 109 24 100 44201 Ozone Maryland Anne Arundel

10/9/2007 51-013-0020 0.076 ppm 101 24 100 44201 Ozone Virginia Arlington
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

2008 2008 2008 2008

4/18/2008 24-003-0014 0.087 ppm 129 24 100 44201 Ozone Maryland Anne Arundel

4/18/2008 24-005-3001 0.079 ppm 109 24 100 44201 Ozone Maryland Baltimore

4/18/2008 24-009-0011 0.079 ppm 109 24 100 44201 Ozone Maryland Calvert

4/18/2008 24-017-0010 0.083 ppm 119 24 100 44201 Ozone Maryland Charles

4/18/2008 24-025-1001 0.086 ppm 127 24 100 44201 Ozone Maryland Harford

4/18/2008 24-025-9001 0.085 ppm 124 24 100 44201 Ozone Maryland Harford

4/18/2008 24-033-0030 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

4/18/2008 24-033-8003 0.079 ppm 109 24 100 44201 Ozone Maryland Prince George's

4/18/2008 51-153-0009 0.076 ppm 101 24 100 44201 Ozone Virginia Prince William

4/19/2008 24-003-0014 0.081 ppm 114 24 100 44201 Ozone Maryland Anne Arundel

4/19/2008 24-005-3001 0.077 ppm 104 24 100 44201 Ozone Maryland Baltimore

4/19/2008 24-009-0011 0.076 ppm 101 24 100 44201 Ozone Maryland Calvert

4/19/2008 24-013-0001 0.077 ppm 104 24 100 44201 Ozone Maryland Carroll

4/19/2008 24-025-1001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

4/19/2008 24-025-9001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

4/19/2008 24-033-0030 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

4/19/2008 24-033-8003 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

5/7/2008 24-031-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Montgomery

5/30/2008 24-013-0001 0.076 ppm 101 24 100 44201 Ozone Maryland Carroll

6/7/2008 24-003-0014 0.077 ppm 104 24 100 44201 Ozone Maryland Anne Arundel

6/7/2008 24-025-1001 0.088 ppm 132 24 100 44201 Ozone Maryland Harford

6/7/2008 24-025-9001 0.092 ppm 142 24 100 44201 Ozone Maryland Harford

6/7/2008 24-033-8003 0.081 ppm 114 24 100 44201 Ozone Maryland Prince George's
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

6/10/2008 24-005-1007 0.099 ppm 159 24 100 44201 Ozone Maryland Baltimore

6/10/2008 24-013-0001 0.079 ppm 109 24 100 44201 Ozone Maryland Carroll

6/10/2008 24-025-9001 0.08 ppm 111 24 100 44201 Ozone Maryland Harford

6/10/2008 24-031-3001 0.085 ppm 124 24 100 44201 Ozone Maryland Montgomery

6/10/2008 24-033-0030 0.085 ppm 124 24 100 44201 Ozone Maryland Prince George's

6/10/2008 51-013-0020 0.08 ppm 111 24 100 44201 Ozone Virginia Arlington

6/12/2008 11-001-0025 0.089 ppm 135 24 100 44201 Ozone District Of Columbia District of Columbia

6/12/2008 11-001-0041 0.086 ppm 127 24 100 44201 Ozone District Of Columbia District of Columbia

6/12/2008 11-001-0043 0.096 ppm 151 24 100 44201 Ozone District Of Columbia District of Columbia

6/12/2008 24-003-0014 0.076 ppm 101 24 100 44201 Ozone Maryland Anne Arundel

6/12/2008 24-005-3001 0.078 ppm 106 24 100 44201 Ozone Maryland Baltimore

6/12/2008 24-017-0010 0.078 ppm 106 24 100 44201 Ozone Maryland Charles

6/12/2008 24-025-1001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

6/12/2008 24-033-8003 0.08 ppm 111 24 100 44201 Ozone Maryland Prince George's

6/12/2008 51-013-0020 0.093 ppm 145 24 100 44201 Ozone Virginia Arlington

6/12/2008 51-059-0030 0.085 ppm 124 24 100 44201 Ozone Virginia Fairfax

6/12/2008 51-153-0009 0.082 ppm 116 18 75 44201 Ozone Virginia Prince William

6/12/2008 51-510-0009 0.077 ppm 104 24 100 44201 Ozone Virginia Alexandria City

6/13/2008 11-001-0043 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

6/13/2008 24-003-0014 0.078 ppm 106 24 100 44201 Ozone Maryland Anne Arundel

6/13/2008 24-005-1007 0.097 ppm 154 24 100 44201 Ozone Maryland Baltimore

6/13/2008 24-005-3001 0.081 ppm 114 24 100 44201 Ozone Maryland Baltimore

6/13/2008 24-013-0001 0.096 ppm 151 24 100 44201 Ozone Maryland Carroll

6/13/2008 24-017-0010 0.076 ppm 101 24 100 44201 Ozone Maryland Charles

6/13/2008 24-021-0037 0.085 ppm 124 24 100 44201 Ozone Maryland Frederick

6/13/2008 24-025-1001 0.085 ppm 124 24 100 44201 Ozone Maryland Harford
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

6/13/2008 24-025-9001 0.083 ppm 119 24 100 44201 Ozone Maryland Harford

6/13/2008 24-031-3001 0.094 ppm 147 24 100 44201 Ozone Maryland Montgomery

6/13/2008 24-033-0030 0.085 ppm 124 24 100 44201 Ozone Maryland Prince George's

6/13/2008 24-033-8003 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

6/13/2008 51-013-0020 0.079 ppm 109 24 100 44201 Ozone Virginia Arlington

6/14/2008 24-005-3001 0.081 ppm 114 24 100 44201 Ozone Maryland Baltimore

6/14/2008 24-025-1001 0.093 ppm 145 24 100 44201 Ozone Maryland Harford

6/14/2008 24-025-9001 0.089 ppm 135 24 100 44201 Ozone Maryland Harford

6/21/2008 11-001-0041 0.077 ppm 104 24 100 44201 Ozone District Of Columbia District of Columbia

6/21/2008 11-001-0043 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

6/21/2008 24-005-1007 0.087 ppm 129 24 100 44201 Ozone Maryland Baltimore

6/21/2008 24-005-3001 0.081 ppm 114 24 100 44201 Ozone Maryland Baltimore

6/21/2008 24-025-9001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

6/21/2008 24-031-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Montgomery

6/21/2008 24-033-0030 0.08 ppm 111 24 100 44201 Ozone Maryland Prince George's

6/21/2008 51-013-0020 0.076 ppm 101 24 100 44201 Ozone Virginia Arlington

6/25/2008 24-025-9001 0.076 ppm 101 24 100 44201 Ozone Maryland Harford

7/3/2008 24-025-1001 0.089 ppm 135 24 100 44201 Ozone Maryland Harford

7/3/2008 24-025-9001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

7/8/2008 24-025-9001 0.08 ppm 111 24 100 44201 Ozone Maryland Harford

7/11/2008 24-003-0014 0.076 ppm 101 24 100 44201 Ozone Maryland Anne Arundel

7/11/2008 24-005-3001 0.084 ppm 122 24 100 44201 Ozone Maryland Baltimore

7/11/2008 24-025-1001 0.100 ppm 161 24 100 44201 Ozone Maryland Harford
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/11/2008 24-025-9001 0.076 ppm 101 24 100 44201 Ozone Maryland Harford

7/12/2008 24-021-0037 0.076 ppm 101 24 100 44201 Ozone Maryland Frederick

7/12/2008 24-025-1001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

7/15/2008 11-001-0041 0.081 ppm 114 24 100 44201 Ozone District Of Columbia District of Columbia

7/15/2008 11-001-0043 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

7/15/2008 24-003-0014 0.081 ppm 114 24 100 44201 Ozone Maryland Anne Arundel

7/15/2008 51-013-0020 0.081 ppm 114 24 100 44201 Ozone Virginia Arlington

7/16/2008 11-001-0041 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

7/16/2008 11-001-0043 0.084 ppm 122 24 100 44201 Ozone District Of Columbia District of Columbia

7/16/2008 24-003-0014 0.077 ppm 104 24 100 44201 Ozone Maryland Anne Arundel

7/16/2008 24-005-1007 0.08 ppm 111 24 100 44201 Ozone Maryland Baltimore

7/16/2008 24-005-3001 0.078 ppm 106 24 100 44201 Ozone Maryland Baltimore

7/16/2008 24-017-0010 0.078 ppm 106 24 100 44201 Ozone Maryland Charles

7/16/2008 24-025-1001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

7/16/2008 24-033-0030 0.081 ppm 114 24 100 44201 Ozone Maryland Prince George's

7/16/2008 24-033-8003 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

7/16/2008 51-013-0020 0.084 ppm 122 24 100 44201 Ozone Virginia Arlington

7/16/2008 51-059-0030 0.088 ppm 132 24 100 44201 Ozone Virginia Fairfax

7/16/2008 51-179-0001 0.085 ppm 124 24 100 44201 Ozone Virginia Stafford

7/17/2008 11-001-0025 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

7/17/2008 11-001-0041 0.092 ppm 142 24 100 44201 Ozone District Of Columbia District of Columbia

7/17/2008 11-001-0043 0.100 ppm 161 24 100 44201 Ozone District Of Columbia District of Columbia

7/17/2008 24-003-0014 0.087 ppm 129 24 100 44201 Ozone Maryland Anne Arundel

7/17/2008 24-005-3001 0.08 ppm 111 24 100 44201 Ozone Maryland Baltimore

7/17/2008 24-009-0011 0.08 ppm 111 24 100 44201 Ozone Maryland Calvert

7/17/2008 24-017-0010 0.089 ppm 135 24 100 44201 Ozone Maryland Charles

7/17/2008 24-025-1001 0.088 ppm 132 24 100 44201 Ozone Maryland Harford
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/17/2008 24-033-0030 0.081 ppm 114 24 100 44201 Ozone Maryland Prince George's

7/17/2008 24-033-8003 0.08 ppm 111 24 100 44201 Ozone Maryland Prince George's

7/17/2008 51-013-0020 0.104 ppm 172 24 100 44201 Ozone Virginia Arlington

7/17/2008 51-059-0030 0.095 ppm 150 24 100 44201 Ozone Virginia Fairfax

7/17/2008 51-510-0009 0.09 ppm 137 24 100 44201 Ozone Virginia Alexandria City

7/18/2008 11-001-0025 0.083 ppm 119 24 100 44201 Ozone District Of Columbia District of Columbia

7/18/2008 11-001-0041 0.082 ppm 116 24 100 44201 Ozone District Of Columbia District of Columbia

7/18/2008 11-001-0043 0.086 ppm 127 24 100 44201 Ozone District Of Columbia District of Columbia

7/18/2008 24-003-0014 0.077 ppm 104 24 100 44201 Ozone Maryland Anne Arundel

7/18/2008 24-005-1007 0.088 ppm 132 24 100 44201 Ozone Maryland Baltimore

7/18/2008 24-005-3001 0.099 ppm 159 24 100 44201 Ozone Maryland Baltimore

7/18/2008 24-013-0001 0.083 ppm 119 24 100 44201 Ozone Maryland Carroll

7/18/2008 24-017-0010 0.076 ppm 101 24 100 44201 Ozone Maryland Charles

7/18/2008 24-025-1001 0.102 ppm 166 24 100 44201 Ozone Maryland Harford

7/18/2008 24-025-9001 0.099 ppm 159 24 100 44201 Ozone Maryland Harford

7/18/2008 24-031-3001 0.082 ppm 116 24 100 44201 Ozone Maryland Montgomery

7/18/2008 24-033-0030 0.097 ppm 154 24 100 44201 Ozone Maryland Prince George's

7/18/2008 24-033-8003 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

7/18/2008 24-510-0054 0.082 ppm 116 24 100 44201 Ozone Maryland Baltimore (City)

7/18/2008 51-013-0020 0.089 ppm 135 24 100 44201 Ozone Virginia Arlington

7/18/2008 51-059-0030 0.078 ppm 106 24 100 44201 Ozone Virginia Fairfax

7/18/2008 51-510-0009 0.077 ppm 104 24 100 44201 Ozone Virginia Alexandria City

7/28/2008 24-025-1001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

7/29/2008 24-005-1007 0.087 ppm 129 24 100 44201 Ozone Maryland Baltimore

7/29/2008 24-005-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

7/29/2008 24-013-0001 0.078 ppm 106 24 100 44201 Ozone Maryland Carroll

7/29/2008 24-025-1001 0.085 ppm 124 24 100 44201 Ozone Maryland Harford
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/29/2008 24-025-9001 0.087 ppm 129 24 100 44201 Ozone Maryland Harford

7/29/2008 24-033-0030 0.078 ppm 106 24 100 44201 Ozone Maryland Prince George's

8/19/2008 24-009-0011 0.076 ppm 101 24 100 44201 Ozone Maryland Calvert

8/19/2008 24-017-0010 0.077 ppm 104 24 100 44201 Ozone Maryland Charles

8/25/2008 24-003-0014 0.079 ppm 109 24 100 44201 Ozone Maryland Anne Arundel

8/25/2008 24-033-8003 0.078 ppm 106 24 100 44201 Ozone Maryland Prince George's

9/3/2008 11-001-0043 0.080 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

9/3/2008 24-003-0014 0.086 ppm 127 24 100 44201 Ozone Maryland Anne Arundel

9/3/2008 24-009-0011 0.087 ppm 129 24 100 44201 Ozone Maryland Calvert

9/3/2008 24-017-0010 0.086 ppm 127 24 100 44201 Ozone Maryland Charles

9/3/2008 24-033-8003 0.079 ppm 109 24 100 44201 Ozone Maryland Prince George's

9/3/2008 51-059-0030 0.085 ppm 124 24 100 44201 Ozone Virginia Fairfax

9/4/2008 24-003-0014 0.079 ppm 109 24 100 44201 Ozone Maryland Anne Arundel

9/4/2008 24-009-0011 0.077 ppm 104 24 100 44201 Ozone Maryland Calvert

9/4/2008 24-017-0010 0.077 ppm 104 24 100 44201 Ozone Maryland Charles

9/4/2008 24-021-0037 0.082 ppm 116 24 100 44201 Ozone Maryland Frederick

9/4/2008 24-025-1001 0.08 ppm 111 24 100 44201 Ozone Maryland Harford

9/4/2008 51-059-0030 0.077 ppm 104 24 100 44201 Ozone Virginia Fairfax

2010 2010 2010 2010

4/26/2009 24-025-1001 0.078 ppm 106 24 100 44201 Ozone Maryland Harford

6/8/2009 11-001-0025 0.082 ppm 116 24 100 44201 Ozone District Of Columbia District of Columbia

6/8/2009 11-001-0041 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

6/8/2009 11-001-0043 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

6/8/2009 24-005-1007 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

6/8/2009 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

6/8/2009 51-013-0020 0.078 ppm 106 24 100 44201 Ozone Virginia Arlington

6/25/2009 24-005-3001 0.086 ppm 127 24 100 44201 Ozone Maryland Baltimore

6/25/2009 24-009-0011 0.076 ppm 101 24 100 44201 Ozone Maryland Calvert

6/25/2009 24-025-1001 0.109 ppm 185 24 100 44201 Ozone Maryland Harford

6/25/2009 24-025-9001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

6/26/2009 11-001-0041 0.08 ppm 111 18 75 44201 Ozone District Of Columbia District of Columbia

6/26/2009 11-001-0043 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

6/26/2009 24-025-1001 0.091 ppm 140 24 100 44201 Ozone Maryland Harford

6/26/2009 24-025-9001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

6/26/2009 51-013-0020 0.077 ppm 104 24 100 44201 Ozone Virginia Arlington

6/26/2009 24-033-0030 ??? ppm 101 24 100 44201 Ozone Maryland Prince George's

7/13/2009 24-025-1001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford

7/15/2009 24-025-1001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

7/16/2009 24-025-1001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

8/16/2009 24-025-1001 0.085 ppm 124 24 100 44201 Ozone Maryland Harford

8/18/2009 24-025-1001 0.083 ppm 119 24 100 44201 Ozone Maryland Harford

8/27/2009 24-025-1001 0.076 ppm 101 24 100 44201 Ozone Maryland Harford

8/27/2009 51-059-0030 0.08 ppm 111 24 100 44201 Ozone Virginia Fairfax

2010 2010 2010 2010

5/5/2010 24-025-1001 0.077 ppm 104 16 67 44201 Ozone Maryland Harford

5/21/2010 24-025-1001 0.076 ppm 101 24 100 44201 Ozone Maryland Harford
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

5/27/2010 11-001-0043 0.080 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

5/27/2010 24-003-0014 0.078 ppm 106 24 100 44201 Ozone Maryland Anne Arundel

5/27/2010 24-005-3001 0.079 ppm 109 24 100 44201 Ozone Maryland Baltimore

5/27/2010 24-025-1001 0.089 ppm 135 24 100 44201 Ozone Maryland Harford

5/27/2010 24-033-0030 0.087 ppm 129 24 100 44201 Ozone Maryland Prince George's

5/27/2010 51-013-0020 0.083 ppm 119 24 100 44201 Ozone Virginia Arlington

5/27/2010 51-059-0030 0.088 ppm 132 24 100 44201 Ozone Virginia Fairfax

5/27/2010 51-179-0001 0.080 ppm 111 24 100 44201 Ozone Virginia Stafford

5/27/2010 51-510-0009 0.078 ppm 106 24 100 44201 Ozone Virginia Alexandria City

6/2/2010 11-001-0043 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

6/2/2010 24-025-1001 0.087 ppm 129 24 100 44201 Ozone Maryland Harford

6/2/2010 24-025-9001 0.076 ppm 101 24 100 44201 Ozone Maryland Harford

6/2/2010 24-033-0030 0.080 ppm 111 24 100 44201 Ozone Maryland Prince George's

6/4/2010 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

6/12/2010 24-031-3001 0.079 ppm 109 24 100 44201 Ozone Maryland Montgomery

6/18/2010 51-059-0030 0.083 ppm 119 13 54 44201 Ozone Virginia Fairfax

6/21/2010 24-009-0011 0.082 ppm 116 24 100 44201 Ozone Maryland Calvert

6/21/2010 24-017-0010 0.076 ppm 101 24 100 44201 Ozone Maryland Charles

6/21/2010 24-033-8003 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

6/22/2010 11-001-0041 0.077 ppm 104 24 100 44201 Ozone District Of Columbia District of Columbia

6/22/2010 11-001-0043 0.077 ppm 104 24 100 44201 Ozone District Of Columbia District of Columbia

6/22/2010 24-005-1007 0.085 ppm 124 24 100 44201 Ozone Maryland Baltimore

6/22/2010 24-005-3001 0.079 ppm 109 24 100 44201 Ozone Maryland Baltimore
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

6/22/2010 24-025-1001 0.087 ppm 129 24 100 44201 Ozone Maryland Harford

6/22/2010 24-025-9001 0.081 ppm 114 24 100 44201 Ozone Maryland Harford

6/22/2010 24-031-3001 0.077 ppm 104 24 100 44201 Ozone Maryland Montgomery

6/22/2010 24-033-0030 0.091 ppm 140 24 100 44201 Ozone Maryland Prince George's

6/22/2010 51-013-0020 0.079 ppm 109 24 100 44201 Ozone Virginia Arlington

6/23/2010 24-009-0011 0.076 ppm 101 24 100 44201 Ozone Maryland Calvert

6/23/2010 24-025-1001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

6/25/2010 24-005-3001 0.081 ppm 114 24 100 44201 Ozone Maryland Baltimore

6/25/2010 24-025-1001 0.087 ppm 129 24 100 44201 Ozone Maryland Harford

6/25/2010 24-033-8003 0.080 ppm 111 24 100 44201 Ozone Maryland Prince George's

6/26/2010 24-005-3001 0.078 ppm 106 24 100 44201 Ozone Maryland Baltimore

6/26/2010 24-025-1001 0.087 ppm 129 24 100 44201 Ozone Maryland Harford

6/26/2010 24-025-9001 0.086 ppm 127 24 100 44201 Ozone Maryland Harford

6/26/2010 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

6/27/2010 24-025-1001 0.079 ppm 109 24 100 44201 Ozone Maryland Harford

7/3/2010 11-001-0041 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

7/3/2010 11-001-0043 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

7/3/2010 24-025-1001 0.08 ppm 111 24 100 44201 Ozone Maryland Harford

7/3/2010 24-033-0030 0.082 ppm 116 24 100 44201 Ozone Maryland Prince George's

7/4/2010 11-001-0041 0.086 ppm 127 24 100 44201 Ozone District Of Columbia District of Columbia

7/4/2010 11-001-0043 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

7/4/2010 24-005-3001 0.08 ppm 111 24 100 44201 Ozone Maryland Baltimore

7/4/2010 24-025-1001 0.09 ppm 137 24 100 44201 Ozone Maryland Harford

7/4/2010 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

7/4/2010 51-013-0020 0.078 ppm 106 24 100 44201 Ozone Virginia Arlington

7/4/2010 51-059-0030 0.076 ppm 101 24 100 44201 Ozone Virginia Fairfax
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/5/2010 24-003-0014 0.077 ppm 104 24 100 44201 Ozone Maryland Anne Arundel

7/5/2010 24-005-3001 0.084 ppm 122 24 100 44201 Ozone Maryland Baltimore

7/5/2010 24-009-0011 0.082 ppm 116 24 100 44201 Ozone Maryland Calvert

7/5/2010 24-017-0010 0.080 ppm 111 24 100 44201 Ozone Maryland Charles

7/5/2010 24-025-1001 0.097 ppm 154 24 100 44201 Ozone Maryland Harford

7/5/2010 24-025-9001 0.078 ppm 106 24 100 44201 Ozone Maryland Harford

7/5/2010 24-033-8003 0.080 ppm 111 24 100 44201 Ozone Maryland Prince George's

7/6/2010 11-001-0041 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

7/6/2010 11-001-0043 0.082 ppm 116 24 100 44201 Ozone District Of Columbia District of Columbia

7/6/2010 24-003-0014 0.099 ppm 159 24 100 44201 Ozone Maryland Anne Arundel

7/6/2010 24-005-3001 0.09 ppm 137 24 100 44201 Ozone Maryland Baltimore

7/6/2010 24-009-0011 0.087 ppm 129 24 100 44201 Ozone Maryland Calvert

7/6/2010 24-013-0001 0.078 ppm 106 24 100 44201 Ozone Maryland Carroll

7/6/2010 24-017-0010 0.087 ppm 129 24 100 44201 Ozone Maryland Charles

7/6/2010 24-021-0037 0.084 ppm 122 24 100 44201 Ozone Maryland Frederick

7/6/2010 24-025-1001 0.092 ppm 142 24 100 44201 Ozone Maryland Harford

7/6/2010 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

7/6/2010 24-033-8003 0.090 ppm 137 24 100 44201 Ozone Maryland Prince George's

7/6/2010 51-013-0020 0.076 ppm 101 24 100 44201 Ozone Virginia Arlington

7/6/2010 51-059-0030 0.078 ppm 106 24 100 44201 Ozone Virginia Fairfax

7/7/2010 11-001-0025 0.087 ppm 129 24 100 44201 Ozone District Of Columbia District of Columbia

7/7/2010 11-001-0041 0.096 ppm 151 24 100 44201 Ozone District Of Columbia District of Columbia

7/7/2010 11-001-0043 0.100 ppm 161 24 100 44201 Ozone District Of Columbia District of Columbia

7/7/2010 24-003-0014 0.082 ppm 116 24 100 44201 Ozone Maryland Anne Arundel

7/7/2010 24-005-3001 0.084 ppm 122 24 100 44201 Ozone Maryland Baltimore

7/7/2010 24-009-0011 0.090 ppm 137 24 100 44201 Ozone Maryland Calvert

7/7/2010 24-013-0001 0.085 ppm 124 24 100 44201 Ozone Maryland Carroll

7/7/2010 24-017-0010 0.082 ppm 116 24 100 44201 Ozone Maryland Charles
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/7/2010 24-021-0037 0.077 ppm 104 24 100 44201 Ozone Maryland Frederick

7/7/2010 24-025-1001 0.088 ppm 132 24 100 44201 Ozone Maryland Harford

7/7/2010 24-033-0030 0.094 ppm 147 24 100 44201 Ozone Maryland Prince George's

7/7/2010 24-033-8003 0.085 ppm 124 23 96 44201 Ozone Maryland Prince George's

7/7/2010 51-013-0020 0.092 ppm 142 24 100 44201 Ozone Virginia Arlington

7/7/2010 51-059-0030 0.095 ppm 150 24 100 44201 Ozone Virginia Fairfax

7/7/2010 51-179-0001 0.088 ppm 132 24 100 44201 Ozone Virginia Stafford

7/7/2010 51-510-0009 0.092 ppm 142 24 100 44201 Ozone Virginia Alexandria City

7/8/2010 24-013-0001 0.083 ppm 119 24 100 44201 Ozone Maryland Carroll

7/8/2010 24-021-0037 0.093 ppm 145 24 100 44201 Ozone Maryland Frederick

7/8/2010 51-153-0009 0.093 ppm 145 24 100 44201 Ozone Virginia Prince William

7/15/2010 11-001-0041 0.076 ppm 101 24 100 44201 Ozone District Of Columbia District of Columbia

7/15/2010 11-001-0043 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

7/15/2010 24-003-0014 0.076 ppm 101 24 100 44201 Ozone Maryland Anne Arundel

7/15/2010 51-013-0020 0.078 ppm 106 24 100 44201 Ozone Virginia Arlington

7/16/2010 24-025-1001 0.086 ppm 127 18 75 44201 Ozone Maryland Harford

7/16/2010 24-025-9001 0.08 ppm 111 24 100 44201 Ozone Maryland Harford

7/17/2010 24-025-1001 0.086 ppm 127 24 100 44201 Ozone Maryland Harford

7/23/2010 24-003-0014 0.082 ppm 116 24 100 44201 Ozone Maryland Anne Arundel

7/23/2010 24-005-3001 0.082 ppm 116 24 100 44201 Ozone Maryland Baltimore

7/23/2010 24-025-1001 0.101 ppm 164 24 100 44201 Ozone Maryland Harford

7/23/2010 24-025-9001 0.086 ppm 127 24 100 44201 Ozone Maryland Harford

7/27/2010 24-005-1007 0.078 ppm 106 24 100 44201 Ozone Maryland Baltimore

7/27/2010 24-013-0001 0.08 ppm 111 24 100 44201 Ozone Maryland Carroll

7/28/2010 24-033-0030 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

7/31/2010 24-005-1007 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

7/31/2010 24-025-1001 0.078 ppm 106 24 100 44201 Ozone Maryland Harford

8/7/2010 11-001-0041 0.077 ppm 104 24 100 44201 Ozone District Of Columbia District of Columbia

8/9/2010 24-005-1007 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

8/9/2010 24-025-1001 0.076 ppm 101 24 100 44201 Ozone Maryland Harford

8/9/2010 24-033-0030 0.079 ppm 109 24 100 44201 Ozone Maryland Prince George's

8/10/2010 11-001-0025 0.080 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

8/10/2010 11-001-0041 0.090 ppm 137 24 100 44201 Ozone District Of Columbia District of Columbia

8/10/2010 11-001-0043 0.080 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

8/10/2010 24-003-0014 0.099 ppm 159 24 100 44201 Ozone Maryland Anne Arundel

8/10/2010 24-005-1007 0.086 ppm 127 24 100 44201 Ozone Maryland Baltimore

8/10/2010 24-005-3001 0.115 ppm 200 24 100 44201 Ozone Maryland Baltimore

8/10/2010 24-009-0011 0.079 ppm 109 24 100 44201 Ozone Maryland Calvert

8/10/2010 24-013-0001 0.083 ppm 119 24 100 44201 Ozone Maryland Carroll

8/10/2010 24-017-0010 0.077 ppm 104 24 100 44201 Ozone Maryland Charles

8/10/2010 24-021-0037 0.085 ppm 124 24 100 44201 Ozone Maryland Frederick

8/10/2010 24-025-1001 0.110 ppm 187 24 100 44201 Ozone Maryland Harford

8/10/2010 24-033-0030 0.082 ppm 116 24 100 44201 Ozone Maryland Prince George's

8/10/2010 24-033-8003 0.090 ppm 137 24 100 44201 Ozone Maryland Prince George's

8/10/2010 24-510-0054 0.100 ppm 161 24 100 44201 Ozone Maryland Baltimore (City)

8/10/2010 51-013-0020 0.088 ppm 132 17 71 44201 Ozone Virginia Arlington

8/10/2010 51-059-0030 0.082 ppm 116 24 100 44201 Ozone Virginia Fairfax

8/10/2010 51-510-0009 0.081 ppm 114 24 100 44201 Ozone Virginia Alexandria City

8/11/2010 11-001-0025 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

8/11/2010 11-001-0041 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia

8/11/2010 11-001-0043 0.081 ppm 114 24 100 44201 Ozone District Of Columbia District of Columbia

8/11/2010 24-003-0014 0.096 ppm 151 24 100 44201 Ozone Maryland Anne Arundel

8/11/2010 24-009-0011 0.097 ppm 154 24 100 44201 Ozone Maryland Calvert

8/11/2010 24-017-0010 0.093 ppm 145 24 100 44201 Ozone Maryland Charles

8/11/2010 24-033-0030 0.080 ppm 111 24 100 44201 Ozone Maryland Prince George's

8/11/2010 24-033-8003 0.088 ppm 132 24 100 44201 Ozone Maryland Prince George's

8/11/2010 51-013-0020 0.085 ppm 124 24 100 44201 Ozone Virginia Arlington

8/11/2010 51-059-0030 0.089 ppm 135 24 100 44201 Ozone Virginia Fairfax

8/11/2010 51-510-0009 0.082 ppm 116 24 100 44201 Ozone Virginia Alexandria City

8/17/2010 11-001-0025 0.078 ppm 106 24 100 44201 Ozone District Of Columbia District of Columbia

8/17/2010 11-001-0041 0.089 ppm 135 24 100 44201 Ozone District Of Columbia District of Columbia

8/17/2010 11-001-0043 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

8/17/2010 24-003-0014 0.081 ppm 114 13 54 44201 Ozone Maryland Anne Arundel

8/17/2010 51-013-0020 0.089 ppm 135 24 100 44201 Ozone Virginia Arlington

8/17/2010 51-059-0030 0.089 ppm 135 24 100 44201 Ozone Virginia Fairfax

8/17/2010 51-179-0001 0.078 ppm 106 24 100 44201 Ozone Virginia Stafford

8/17/2010 51-510-0009 0.085 ppm 124 24 100 44201 Ozone Virginia Alexandria City

8/19/2010 11-001-0041 0.086 ppm 127 24 100 44201 Ozone District Of Columbia District of Columbia

8/19/2010 11-001-0043 0.081 ppm 114 24 100 44201 Ozone District Of Columbia District of Columbia

8/19/2010 24-005-3001 0.087 ppm 129 24 100 44201 Ozone Maryland Baltimore

8/19/2010 24-025-1001 0.093 ppm 145 24 100 44201 Ozone Maryland Harford

8/19/2010 51-059-0030 0.078 ppm 106 24 100 44201 Ozone Virginia Fairfax

8/19/2010 51-510-0009 0.077 ppm 104 24 100 44201 Ozone Virginia Alexandria City

8/20/2010 11-001-0041 0.079 ppm 109 24 100 44201 Ozone District Of Columbia District of Columbia

8/20/2010 11-001-0043 0.081 ppm 114 24 100 44201 Ozone District Of Columbia District of Columbia
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

8/20/2010 24-003-0014 0.084 ppm 122 24 100 44201 Ozone Maryland Anne Arundel

8/20/2010 24-005-3001 0.076 ppm 101 24 100 44201 Ozone Maryland Baltimore

8/20/2010 24-033-8003 0.077 ppm 104 24 100 44201 Ozone Maryland Prince George's

8/20/2010 51-013-0020 0.077 ppm 104 24 100 44201 Ozone Virginia Arlington

8/20/2010 51-059-0030 0.080 ppm 111 24 100 44201 Ozone Virginia Fairfax

8/20/2010 51-179-0001 0.076 ppm 101 24 100 44201 Ozone Virginia Stafford

8/20/2010 51-510-0009 0.080 ppm 111 24 100 44201 Ozone Virginia Alexandria City

8/28/2010 51-013-0020 0.076 ppm 101 24 100 44201 Ozone Virginia Arlington

8/29/2010 11-001-0041 0.080 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

8/29/2010 24-003-0014 0.078 ppm 106 24 100 44201 Ozone Maryland Anne Arundel

8/29/2010 24-025-1001 0.096 ppm 151 24 100 44201 Ozone Maryland Harford

8/29/2010 51-510-0009 0.078 ppm 106 24 100 44201 Ozone Virginia Alexandria City

8/30/2010 11-001-0043 0.077 ppm 104 24 100 44201 Ozone District Of Columbia District of Columbia

8/30/2010 24-003-0014 0.087 ppm 129 24 100 44201 Ozone Maryland Anne Arundel

8/30/2010 24-005-3001 0.078 ppm 106 17 71 44201 Ozone Maryland Baltimore

8/30/2010 24-009-0011 0.098 ppm 156 24 100 44201 Ozone Maryland Calvert

8/30/2010 24-017-0010 0.087 ppm 129 24 100 44201 Ozone Maryland Charles

8/30/2010 24-025-1001 0.076 ppm 101 24 100 44201 Ozone Maryland Harford

8/30/2010 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

8/30/2010 24-033-8003 0.084 ppm 122 24 100 44201 Ozone Maryland Prince George's

8/30/2010 51-013-0020 0.085 ppm 124 24 100 44201 Ozone Virginia Arlington

8/30/2010 51-059-0030 0.091 ppm 140 24 100 44201 Ozone Virginia Fairfax

8/30/2010 51-153-0009 0.079 ppm 109 24 100 44201 Ozone Virginia Prince William

8/30/2010 51-179-0001 0.086 ppm 127 24 100 44201 Ozone Virginia Stafford

8/30/2010 51-510-0009 0.081 ppm 114 24 100 44201 Ozone Virginia Alexandria City

8/31/2010 11-001-0025 0.077 ppm 104 24 100 44201 Ozone District Of Columbia District of Columbia

8/31/2010 11-001-0041 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

8/31/2010 11-001-0043 0.088 ppm 132 24 100 44201 Ozone District Of Columbia District of Columbia

8/31/2010 24-005-3001 0.08 ppm 111 24 100 44201 Ozone Maryland Baltimore

8/31/2010 24-025-1001 0.09 ppm 137 24 100 44201 Ozone Maryland Harford

8/31/2010 24-031-3001 0.077 ppm 104 24 100 44201 Ozone Maryland Montgomery

8/31/2010 51-013-0020 0.087 ppm 129 19 79 44201 Ozone Virginia Arlington

8/31/2010 51-059-0030 0.086 ppm 127 24 100 44201 Ozone Virginia Fairfax

8/31/2010 51-510-0009 0.081 ppm 114 24 100 44201 Ozone Virginia Alexandria City

9/1/2010 11-001-0025 0.085 ppm 124 24 100 44201 Ozone District Of Columbia District of Columbia

9/1/2010 11-001-0041 0.080 ppm 111 24 100 44201 Ozone District Of Columbia District of Columbia

9/1/2010 11-001-0043 0.086 ppm 127 24 100 44201 Ozone District Of Columbia District of Columbia

9/1/2010 24-005-3001 0.078 ppm 106 24 100 44201 Ozone Maryland Baltimore

9/1/2010 24-025-1001 0.09 ppm 137 24 100 44201 Ozone Maryland Harford

9/1/2010 24-025-9001 0.078 ppm 106 24 100 44201 Ozone Maryland Harford

9/1/2010 24-031-3001 0.080 ppm 111 24 100 44201 Ozone Maryland Montgomery

9/1/2010 24-033-0030 0.085 ppm 124 24 100 44201 Ozone Maryland Prince George's

9/1/2010 24-510-0054 0.077 ppm 104 24 100 44201 Ozone Maryland Baltimore (City)

9/2/2010 24-005-1007 0.092 ppm 142 24 100 44201 Ozone Maryland Baltimore

9/2/2010 24-013-0001 0.084 ppm 122 24 100 44201 Ozone Maryland Carroll

9/2/2010 24-021-0037 0.083 ppm 119 24 100 44201 Ozone Maryland Frederick

9/2/2010 24-025-1001 0.082 ppm 116 24 100 44201 Ozone Maryland Harford

9/2/2010 24-031-3001 0.081 ppm 114 24 100 44201 Ozone Maryland Montgomery

9/2/2010 24-033-0030 0.076 ppm 101 24 100 44201 Ozone Maryland Prince George's

9/3/2010 24-021-0037 0.083 ppm 119 24 100 44201 Ozone Maryland Frederick

9/23/2010 24-021-0037 0.076 ppm 101 24 100 44201 Ozone Maryland Frederick

9/23/2010 51-059-0030 0.080 ppm 111 24 100 44201 Ozone Virginia Fairfax

9/24/2010 24-025-1001 0.077 ppm 104 18 75 44201 Ozone Maryland Harford
Date AQS SITE ID

Daily Max 8-hour 

Ozone 

Concentration UNITS

DAILY 

AQI 

VALUE

DAILY OBS 

COUNT

PERCENT 

COMPLETE

AQS 

PARAMETER 

CODE

AQS 

PARAMETER 

DESC STATE COUNTY

APPENDIX 2 to Technical Support Document -- Area Designations for the Washington-Baltimore-Northern Virginia, DC-MD-VAWV Combined Statistical Area (CSA) 2008 Ozone National Ambient Air Quality Standards 

TABLE A2-1: Air Quality Data – Monitor Exceedance days By Episode for 2006 through 2010

9/24/2010 24-025-9001 0.077 ppm 104 24 100 44201 Ozone Maryland Harford