UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

DESIGN VALUE REPORT

Report Request ID: 1383886 Report Code: AMP480 Nov. 5, 2015

Selection Criteria Page 1

User ID: HTC

State County City Site Parameter POC AQCR UAR CBSA CSA

EPA

Region

51

51

760

161

0024

1004

GEOGRAPHIC SELECTIONS

PROTOCOL SELECTIONS

Parameter

Classification Parameter Method Duration

DESIGN VALUE 42602

SELECTED OPTIONS

SINGLE EVENT PROCESSING

WORKFILE DELIMITER

USER SITE METADATA

MERGE PDF FILES

QUARTERLY DATA IN WORKFILE

AGENCY ROLE

Option Type Option Value

EXCLUDE REGIONALLY CONCURRED EVENTS

,

STREET ADDRESS

YES

NO

PQAO

DATE CRITERIA

2010

Start Date End Date

2014

Tribal

Code

APPLICABLE STANDARDS

Standard Description

NO2 1-hour
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Nov. 5, 2015

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 7
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Nov. 5, 2015

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 7

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Nitrogen dioxide (NO2)

Parts per billion(008)

NO2 1-hour

Annual 98th Percentile Level:

Design Value Year: 2010

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

100 State Name: Virginia

Site ID STREET ADDRESS

|

|

|

Comp.

Qtrs

98th 

Percentile

Cert&

Eval

|

|

|

Comp.

Qtrs

98th

Percentile

Cert&

Eval

|

|

|

Comp.

Qtrs

98th

Percentile

Cert&

Eval

|

|

|

Design

Value

|

|

|

3-Year 2010 2009 2008

51-161-1004

51-760-0024

HERMAN HORN ELEMENTARY S

158-W, SCIENCE MUSEUM OF

 4

 4

 41.0

 57.0

 4

 4

 37.0

 53.0

 4

 4

 37.0

 52.0

 38

 54

DV Validity

Indicator

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Nov. 5, 2015

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 7

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Nitrogen dioxide (NO2)

Parts per billion(008)

NO2 1-hour

Annual 98th Percentile Level:

Design Value Year: 2011

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

100 State Name: Virginia

Site ID STREET ADDRESS

|

|

|

Comp.

Qtrs

98th 

Percentile

Cert&

Eval

|

|

|

Comp.

Qtrs

98th

Percentile

Cert&

Eval

|

|

|

Comp.

Qtrs

98th

Percentile

Cert&

Eval

|

|

|

Design

Value

|

|

|

3-Year 2011 2010 2009

51-161-1004

51-760-0024

HERMAN HORN ELEMENTARY S

158-W, SCIENCE MUSEUM OF

 4

 4

 38.0

 46.2

 4

 4

 41.0

 57.0

 4

 4

 37.0

 53.0

 39

 52

DV Validity

Indicator

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Nov. 5, 2015

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 7

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Nitrogen dioxide (NO2)

Parts per billion(008)

NO2 1-hour

Annual 98th Percentile Level:

Design Value Year: 2012

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

100 State Name: Virginia

Site ID STREET ADDRESS

|

|

|

Comp.

Qtrs

98th 

Percentile

Cert&

Eval

|

|

|

Comp.

Qtrs

98th

Percentile

Cert&

Eval

|

|

|

Comp.

Qtrs

98th

Percentile

Cert&

Eval

|

|

|

Design

Value

|

|

|

3-Year 2012 2011 2010

51-161-1004

51-760-0024

HERMAN HORN ELEMENTARY S

158-W, SCIENCE MUSEUM OF

 4

 4

 36.6

 50.7

Y

Y

 4

 4

 38.0

 46.2

 4

 4

 41.0

 57.0

 39

 51

DV Validity

Indicator

Y

Y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Nov. 5, 2015

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 7

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Nitrogen dioxide (NO2)

Parts per billion(008)

NO2 1-hour

Annual 98th Percentile Level:

Design Value Year: 2013

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

100 State Name: Virginia

Site ID STREET ADDRESS

|

|

|

Comp.

Qtrs

98th 

Percentile

Cert&

Eval

|

|

|

Comp.

Qtrs

98th

Percentile

Cert&

Eval

|

|

|

Comp.

Qtrs

98th

Percentile

Cert&

Eval

|

|

|

Design

Value

|

|

|

3-Year 2013 2012 2011

51-161-1004

51-760-0024

HERMAN HORN ELEMENTARY S

158-W, SCIENCE MUSEUM OF

 4 34.7 S 4

 4

 36.6

 50.7

Y

Y

 4

 4

 38.0

 46.2

 36

 48

DV Validity

Indicator

Y

N
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Nov. 5, 2015

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 7

Pollutant:

Standard Units:

NAAQS Standard:

Statistic:

Nitrogen dioxide (NO2)

Parts per billion(008)

NO2 1-hour

Annual 98th Percentile Level:

Design Value Year: 2014

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.

100 State Name: Virginia

Site ID STREET ADDRESS

|

|

|

Comp.

Qtrs

98th 

Percentile

Cert&

Eval

|

|

|

Comp.

Qtrs

98th

Percentile

Cert&

Eval

|

|

|

Comp.

Qtrs

98th

Percentile

Cert&

Eval

|

|

|

Design

Value

|

|

|

3-Year 2014 2013 2012

51-161-1004

51-760-0024

HERMAN HORN ELEMENTARY S

158-W, SCIENCE MUSEUM OF

 4 39.1 S 4 34.7 S 4

 4

 36.6

 50.7

Y

Y

 37

 51

DV Validity

Indicator

Y

N
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM

PRELIMINARY DESIGN VALUE REPORT

Report Date: Nov. 5, 2015

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 7

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