UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

DESIGN VALUE REPORT

Report Request ID: 1163226 Report Code: AMP480 Jan. 8, 2014

Selection Criteria Page 1

User ID: HXN

State County City Site Parameter POC AQCR UAR CBSA CSA

EPA

Region Method Duration Begin Date End Date

11

11

11

24

24

24

24

51

001

001

001

031

033

033

033

013

0041

0042

0043

3001

0025

0030

8003

0020

GEOGRAPHIC SELECTIONS

PROTOCOL SELECTIONS

Parameter

Classification Parameter Method Duration

DESIGN VALUE 88101

SELECTED OPTIONS

SINGLE EVENT PROCESSING

WORKFILE DELIMITER

USER SITE METADATA

MERGE PDF FILES

QUARTERLY DATA IN WORKFILE

Option Type Option Value

EXCLUDE REGIONALLY CONCURRED EVENTS

,

STREET ADDRESS

YES

NO

GLOBAL DATES

2008

Start Date End Date

2013

Tribal

Code

APPLICABLE STANDARDS

Standard Description

PM25 24-hour 2006

PM25 Annual 2006
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 1 of 20
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 2 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2008

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: District Of Columbia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2008 2007 2006

11-001-0041

11-001-0042

11-001-0043

420 34th Street N.E.,Washington, DC 20019

PARK SERVICES OFFICE 1100 OHIO DRIVE

2500 1ST STREET, N.W. WASHINGTON DC

354

118

344

4

4

4

 29.2

 31.4

 28.4

 12.0

 12.3

 11.6

335

116

338

4

4

4

 32.8

 28.7

 33.1

 13.6

 13.7

 13.0

352

118

352

4

4

4

 35.0

 33.0

 33.2

 13.4

 13.3

 13.0

Y

Y

Y

 32

 31

 32

Y

Y

Y

 13.0

 13.1

 12.5

Y

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 3 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2009

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: District Of Columbia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2009 2008 2007

11-001-0041

11-001-0042

11-001-0043

420 34th Street N.E.,Washington, DC 20019

PARK SERVICES OFFICE 1100 OHIO DRIVE

2500 1ST STREET, N.W. WASHINGTON DC

362

116

349

4

4

4

 24.3

 22.7

 24.0

 10.5

 10.1

 10.2

354

118

344

4

4

4

 29.2

 31.4

 28.4

 12.0

 12.3

 11.6

335

116

338

4

4

4

 32.8

 28.7

 33.1

 13.6

 13.7

 13.0

 29

 28

 29

Y

Y

Y

 12.0

 12.1

 11.6

Y

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 4 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2010

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: District Of Columbia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2010 2009 2008

11-001-0041

11-001-0042

11-001-0043

420 34th Street N.E.,Washington, DC 20019

PARK SERVICES OFFICE 1100 OHIO DRIVE

2500 1ST STREET, N.W. WASHINGTON DC

340

116

336

4

4

4

 28.3

 23.2

 26.2

 11.0

 11.0

 10.5

362

116

349

4

4

4

 24.3

 22.7

 24.0

 10.5

 10.1

 10.2

354

118

344

4

4

4

 29.2

 31.4

 28.4

 12.0

 12.3

 11.6

 27

 26

 26

Y

Y

Y

 11.2

 11.2

 10.8

Y

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 5 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2011

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: District Of Columbia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2011 2010 2009

11-001-0041

11-001-0042

11-001-0043

420 34th Street N.E.,Washington, DC 20019

PARK SERVICES OFFICE 1100 OHIO DRIVE

2500 1ST STREET, N.W. WASHINGTON DC

344

115

354

4

4

4

 24.7

 26.2

 24.8

 10.4

 10.2

 10.2

340

116

336

4

4

4

 28.3

 23.2

 26.2

 11.0

 11.0

 10.5

362

116

349

4

4

4

 24.3

 22.7

 24.0

 10.5

 10.1

 10.2

 26

 24

 25

Y

Y

Y

 10.6

 10.5

 10.3

Y

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 6 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2012

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: District Of Columbia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2012 2011 2010

11-001-0041

11-001-0042

11-001-0043

420 34th Street N.E.,Washington, DC 20019

PARK SERVICES OFFICE 1100 OHIO DRIVE

2500 1ST STREET, N.W. WASHINGTON DC

331

111

366

4

4

4

 27.8

 24.3

 23.8

 9.8

 9.8

 9.7

344

115

354

4

4

4

 24.7

 26.2

 24.8

 10.4

 10.2

 10.2

340

116

336

4

4

4

 28.3

 23.2

 26.2

 11.0

 11.0

 10.5

 27

 25

 25

Y

Y

Y

 10.4

 10.3

 10.1

Y

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 7 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2013

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: District Of Columbia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2013 2012 2011

11-001-0041

11-001-0042

11-001-0043

420 34th Street N.E.,Washington, DC 20019

PARK SERVICES OFFICE 1100 OHIO DRIVE

2500 1ST STREET, N.W. WASHINGTON DC

287

77

354

3

1

4

 21.0

 18.7

 23.7

*

*

 9.1

 8.5

 9.5

*

*

331

111

366

4

4

4

 27.8

 24.3

 23.8

 9.8

 9.8

 9.7

344

115

354

4

4

4

 24.7

 26.2

 24.8

 10.4

 10.2

 10.2

 25

 23

 24

N

N

Y

 9.8

 9.5

 9.8

N

N

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 8 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2008

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Maryland

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2008 2007 2006

24-031-3001

24-033-0025

24-033-0030

24-033-8003

Lathrop E. Smith Environmental Education Center, 5110 Meadowside Lane

Bladensburg Volunteer Fire Department, 4213 Edmondson Road

Howard University's Beltsville Laboratory, 12003 Old Baltimore Pike

 PG County Equestrian Center, 14900 Pennsylvania Ave.

120

114

226

119

4

4

4

4

 26.7

 29.9

 31.0

 27.3

 11.1

 12.4

 11.4

 11.2

Y

Y

Y

118

118

110

118

4

4

4

4

 29.2

 31.5

 29.0

 30.9

 11.7

 14.1

 11.8

 12.4

120

95

115

4

3

4

 29.3

 33.8

 35.2

*

 11.3

 11.5

 12.2

*

*

 28

 31

 31

 31

Y

N

N

Y

 11.4

 13.3

 11.6

 11.9

Y

N

N

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 9 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2009

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Maryland

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2009 2008 2007

24-031-3001

24-033-0025

24-033-0030

24-033-8003

Lathrop E. Smith Environmental Education Center, 5110 Meadowside Lane

Bladensburg Volunteer Fire Department, 4213 Edmondson Road

Howard University's Beltsville Laboratory, 12003 Old Baltimore Pike

 PG County Equestrian Center, 14900 Pennsylvania Ave.

117

116

358

119

4

4

4

4

 21.5

 21.2

 23.4

 18.6

 9.4

 10.7

 10.1

 8.8

120

114

226

119

4

4

4

4

 26.7

 29.9

 31.0

 27.3

 11.1

 12.4

 11.4

 11.2

Y

Y

Y

118

118

110

118

4

4

4

4

 29.2

 31.5

 29.0

 30.9

 11.7

 14.1

 11.8

 12.4

 26

 28

 28

 26

Y

Y

Y

Y

 10.7

 12.4

 11.1

 10.8

Y

Y

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 10 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2010

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Maryland

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2010 2009 2008

24-031-3001

24-033-0025

24-033-0030

24-033-8003

Lathrop E. Smith Environmental Education Center, 5110 Meadowside Lane

Bladensburg Volunteer Fire Department, 4213 Edmondson Road

Howard University's Beltsville Laboratory, 12003 Old Baltimore Pike

 PG County Equestrian Center, 14900 Pennsylvania Ave.

227

113

352

114

4

4

4

4

 28.5

 24.9

 27.0

 20.9

 10.3

 11.5

 11.3

 9.7

117

116

358

119

4

4

4

4

 21.5

 21.2

 23.4

 18.6

 9.4

 10.7

 10.1

 8.8

120

114

226

119

4

4

4

4

 26.7

 29.9

 31.0

 27.3

 11.1

 12.4

 11.4

 11.2

Y

Y

Y

 26

 25

 27

 22

Y

Y

Y

Y

 10.3

 11.5

 11.0

 9.9

Y

Y

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 11 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2011

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Maryland

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2011 2010 2009

24-031-3001

24-033-0025

24-033-0030

24-033-8003

Lathrop E. Smith Environmental Education Center, 5110 Meadowside Lane

Bladensburg Volunteer Fire Department, 4213 Edmondson Road

Howard University's Beltsville Laboratory, 12003 Old Baltimore Pike

 PG County Equestrian Center, 14900 Pennsylvania Ave.

331

108

345

114

3

4

4

4

 25.2

 22.6

 25.5

 21.1

* 10.9

 10.1

 10.9

 8.9

* 227

113

352

114

4

4

4

4

 28.5

 24.9

 27.0

 20.9

 10.3

 11.5

 11.3

 9.7

117

116

358

119

4

4

4

4

 21.5

 21.2

 23.4

 18.6

 9.4

 10.7

 10.1

 8.8

 25

 23

 25

 20

N

Y

Y

Y

 10.2

 10.8

 10.8

 9.1

N

Y

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 12 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2012

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Maryland

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2012 2011 2010

24-031-3001

24-033-0025

24-033-0030

24-033-8003

Lathrop E. Smith Environmental Education Center, 5110 Meadowside Lane

Bladensburg Volunteer Fire Department, 4213 Edmondson Road

Howard University's Beltsville Laboratory, 12003 Old Baltimore Pike

 PG County Equestrian Center, 14900 Pennsylvania Ave.

356

358

101

4

4

4

 22.7

 22.3

 15.0

 10.3

 10.3

 7.8

*

S

S

S

331

108

345

114

3

4

4

4

 25.2

 22.6

 25.5

 21.1

* 10.9

 10.1

 10.9

 8.9

* 227

113

352

114

4

4

4

4

 28.5

 24.9

 27.0

 20.9

 10.3

 11.5

 11.3

 9.7

 25

 24

 25

 19

N

N

Y

Y

 10.5

 10.8

 10.8

 8.8

N

N

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 13 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2013

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Maryland

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2013 2012 2011

24-031-3001

24-033-0025

24-033-0030

24-033-8003

Lathrop E. Smith Environmental Education Center, 5110 Meadowside Lane

Bladensburg Volunteer Fire Department, 4213 Edmondson Road

Howard University's Beltsville Laboratory, 12003 Old Baltimore Pike

 PG County Equestrian Center, 14900 Pennsylvania Ave.

290

283

82

3

3

3

 18.4

 20.5

 17.2

*

*

*

 7.7

 8.8

 8.1

*

*

*

*

356

358

101

4

4

4

 22.7

 22.3

 15.0

 10.3

 10.3

 7.8

*

S

S

S

331

108

345

114

3

4

4

4

 25.2

 22.6

 25.5

 21.1

* 10.9

 10.1

 10.9

 8.9

* 22

 23

 23

 18

N

N

N

N

 9.6

 10.1

 10.0

 8.3

N

N

N

N
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 14 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2008

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Virginia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2008 2007 2006

51-013-0020

S 18TH AND HAYES ST

119 4 27.9 12.0 120 4 29.5 13.8 120 4 32.5 12.9 Y 30 Y 12.9 Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 15 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2009

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Virginia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2009 2008 2007

51-013-0020

S 18TH AND HAYES ST

118 4 23.2 10.1 119 4 27.9 12.0 120 4 29.5 13.8 27 Y 11.9 Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 16 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2010

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Virginia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2010 2009 2008

51-013-0020

S 18TH AND HAYES ST

108 3 21.8* 10.3* 118 4 23.2 10.1 119 4 27.9 12.0 24 N 10.8 N
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 17 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2011

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Virginia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2011 2010 2009

51-013-0020

S 18TH AND HAYES ST

58 2 21.2* 9.9* 108 3 21.8* 10.3 * 118 4 23.2 10.1 22 N 10.1 N
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 18 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2012

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Virginia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2012 2011 2010

51-013-0020

S 18TH AND HAYES ST

121 4 21.8 9.4 58 2 21.2* 9.9 * 108 3 21.8* 10.3* 22 N 9.9 N
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 19 of 20

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Statistic:

Site-LevelPM2.5 - Local Conditions(88101)

Micrograms/cubic meter (LC)(105)

PM25 24-hour 2006 / PM25 Annual 2006

Annual Weighted Mean

Annual 98th Percentile

Level:

Level:

Design Value Year: 2013

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

15

35 State Name: Virginia

Site_ID /

STREET ADDRESS

|

|

|

Cred.

Days

Comp.

Qrtrs

Wtd.

Mean 

98th

Perctil

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Cred.

Days

Comp.

Qrtrs

98th

Perctil

Wtd.

Mean 

Cert&

 Eval

|

|

|

Design

Value

Valid

Ind.

|

|

|

Design

Value

Valid

Ind.

24-Hour Annual 2013 2012 2011

51-013-0020

S 18TH AND HAYES ST

112 3 18.5* 8.7* 121 4 21.8 9.4 58 2 21.2* 9.9* 21 N 9.4 N
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Jan. 8, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 

 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis.

 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').

Page 20 of 20

M

N

S

U

X

Y

The monitoring organization has revised data from this monitor since the


most recent certification letter received from the state.

The certifying agency has submitted the certification letter and required


summary reports, but the certifying agency and/or EPA has determined


that issues regarding the quality of the ambient concentration data cannot


be resolved due to data completeness, the lack of performed quality


assurance checks or the results of uncertainty statistics shown in the


AMP255 report or the certification and quality assurance report.

The certifying agency has submitted the certification letter and required


summary reports. A value of "S" conveys no Regional assessment regarding


data quality per se. This flag will remain until the Region provides an "N" or


"Y" concurrence flag.

Uncertified. The certifying agency did not submit a required certification


letter and summary reports for this monitor even though the due date has


passed, or the state's certification letter specifically did not apply the


certification to this monitor.

Certification is not required by 40 CFR 58.15 and no conditions apply to be


the basis for assigning another flag value

The certifying agency has submitted a certification letter, and EPA has no


unresolved reservations about data quality (after reviewing the letter, the


attached summary reports, the amount of quality assurance data


submitted to AQS, the quality statistics, and the highest reported


concentrations).

MEANING

CERTIFICATION EVALUATION AND CONCURRENCE FLAG MEANINGS

FLAG