UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

DATA QUALITY INDICATOR REPORT

Aug. 11, 2010 Report Request ID: 780307 Report Code: AMP255

Selection Criteria Page 1 User ID: PFB

State County City

Site Parameter POC AQCR UAR CBSA CSA EPA Region Method Duration Begin Date End Date
24 GEOGRAPHIC SELECTIONS

PROTOCOL SELECTIONS
Parameter Classification Parameter Method Duration
APP_A_PARAMETERS

SELECTED OPTIONS

INCLUDE ONLY APPENDIX A

MONITORS RESTRICT TO MONITORING

SEASONS MERGE PDF FILES Option Type Option Value
NO

YES

YES

GLOBAL DATES

2009 Start Date End Date
2009 01 01 12 31 Tribal

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM Aug. 11, 2010 

# DATA QUALITY INDICATOR REPORT

Page1of10 

# Code Listing
The following codes may be seen in the "MT" column throughout this report. Please be advised that not all of the

codes may appear in the report. They are provided for completeness.

NR S P T SP I NC IX ID N NA CN F O PN ST VS QA X SS SU SU TS U UP W M NON-REGULATORY SLAMS PAMS TRIBAL MONITORS SPECIAL PURPOSE IMPROVE NCORE INDEX SITE INDUSTRIAL NAMS NATTS CASTNET NON-EPA FEDERAL OTHER PROPOSED NCORE SCHOOL AIR TOXICS VOL SCHOOL AT QA COLLOCATED SECURED SLAMS SPECIATION SUPLMNTL SPECIATION SUPPLMNTL SPECIATION TRENDS SPECIATION UNKNOWN UNOFFICIAL PAMS WHO WMO Code Description Description 

# Notes About this Report

If you see this value for a column in a summarized row, this means that more than one occurence exist in the summary. For example, if you have a PQAO summary that spans multiple States, you would see this value in the States column. 

### M

Code For specific information about the fields appearing within this report, please refer to the README.txt file that is included with the WORKFILE output for this report.

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM Aug. 11, 2010 

# DATA QUALITY INDICATOR REPORT

Page2of10 

# 1-Point Quality Control

CO

NO2

O3

O3 Pollutant:

Pollutant:

Pollutant:

Pollutant: 1002 (State Of Maryland Air Management Administration)

1002 (State Of Maryland Air Management Administration)

0745 (National Park Service)

1002 (State Of Maryland Air Management Administration) PQAO:

PQAO:

PQAO:

PQAO: Yes

Yes

No

Yes App A?:

App A?:

App A?:

App A?: Year

Year

Year

Year Region

Region

Region

Region State

State

State

State Site ID

Site ID

Site ID

Site ID POC

POC

POC

POC MT

MT

MT

MT Begin

Date

Begin Date

Begin Date

Begin Date End

Date

End Date

End Date

End Date # Req

# Req

# Req

# Req # Obs

# Obs

# Obs

# Obs %

Complete

% Complete

% Complete

% Complete CV

CV

CV

CV Bias

Bias

Bias

Bias 2009 2009 2009 2009 2009 SUMMARY

2009 2009 2009 2009 2009 2009 SUMMARY

2009 2009 SUMMARY

2009 2009 03

03 03 03 03 03

03 03 03 03 03 03 03

03 03 03

03 03 MD MD MD MD MD MD

MD MD MD MD MD MD MD

MD MD MD

MD MD 24-005-3001 24-023-0002 24-033-0030 24-510-0040 SUMMARY

24-005-3001 24-023-0002 24-025-9001 24-033-0030 24-510-0040 SUMMARY

24-047-1001 SUMMARY

24-003-0014 24-005-1007 1

1 1 1

2 1 1 1 1

1

1 1 S S-PN PN S

S S-PN UP S-PN S

NR-F

S S 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09

01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09

01-APR-09

01-APR-09 01-APR-09 31-DEC-09

31-DEC-09 31-DEC-09 31-DEC-09

31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09

31-OCT-09

31-OCT-09 31-OCT-09 26

26 26 26 104 104

26 26 26 26 26 130 130

15 15 15

15 15 26

22 26 24 98 98

25 25 0 0 23 73 73

0 0 0

21 15 100

85 100 92 94 94

96 96 0 0 88 56 56

0 0 0

100 100 2.26

6.80 2.24 1.34 3.23 3.23

2.89 4.44

2.29 3.14 3.14

1.36 2.23 2.33

5.11 2.82 1.40 2.58 2.58

2.39 3.83

2.03 2.58 2.58

0.98 1.71 - +/-

-

-

-

-

+/- +/-

+/- +/- +/-

+ +/-

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM Aug. 11, 2010 

# DATA QUALITY INDICATOR REPORT

Page3of10 

# 1-Point Quality Control

O3

SO2 Pollutant:

Pollutant: 1002 (State Of Maryland Air Management Administration)

1002 (State Of Maryland Air Management Administration) PQAO:

PQAO: Yes

Yes App A?:

App A?: Year

Year Region

Region State

State Site ID

Site ID POC

POC MT

MT Begin

Date

Begin Date End

Date

End Date # Req

# Req # Obs

# Obs %

Complete

% Complete CV

CV Bias

Bias 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 SUMMARY

2009 2009 2009 2009 SUMMARY 03

03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03

03 03 03 03 03 MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD

MD MD MD MD MD 24-005-3001 24-009-0011 24-013-0001 24-015-0003 24-017-0010 24-021-0037 24-023-0002 24-025-1001 24-025-9001 24-029-0002 24-031-3001 24-033-0030 24-033-8003 24-043-0009 24-510-0054 SUMMARY

24-005-3001 24-023-0002 24-033-0030 SUMMARY 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 1 1 S S S S S S S-PN S S S S S-PN S S S

S S-PN S-PN 01-APR-09

01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09

01-JAN-09 01-JAN-09 01-JAN-09 31-OCT-09

31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09

31-DEC-09 31-DEC-09 31-DEC-09 15

15 15 15 15 15 15 15 15 15 15 15 15 15 15 255 255

26 26 26 78 78 15

14 15 14 14 15 27 16 18 15 16 14 14 16 15 274 274

26 38 26 90 90 100

93 100 93 93 100 100 100 100 100 100 93 93 100 100 98 98

100 100 100 100 100 1.25

1.10 2.01 2.56 0.82 1.34 0.98 3.08 1.04 2.25 1.65 1.15 1.30 0.67 1.40 1.34 1.34

1.30 3.33 3.36 2.65 2.65 0.86

1.01 1.56 1.98 0.72 1.37 0.89 2.36 0.64 1.68 1.22 0.83 0.91 0.46 1.11 0.87 0.87

2.42 3.47 3.45 2.97 2.97 +/-

+

- +/-

+

-
+

- +/-

+

- +/- +/- +/- +/- +/- +/-

-

-

-

-

-

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM Aug. 11, 2010 

# DATA QUALITY INDICATOR REPORT

Page4of10 

# Annual Performance Evaluations

CO

NO2

O3

O3 Pollutant:

Pollutant:

Pollutant:

Pollutant: 1002 (State Of Maryland Air Management Administration)

1002 (State Of Maryland Air Management Administration)

0745 (National Park Service)

1002 (State Of Maryland Air Management Administration) PQAO:

PQAO:

PQAO:

PQAO: Yes

Yes

No

Yes Year

Year

Year

Year Region

Region

Region

RegionState

State

State

State Site ID

Site ID

Site ID

Site ID POC

POC

POC

POC MT

MT

MT

MT Begin

Date

Begin Date

Begin Date

Begin Date End

Date

End Date

End Date

End Date 2009 2009 2009 2009 2009 SUMMARY

2009 2009 2009 2009 2009 2009 SUMMARY

2009 2009 SUMMARY

2009 2009 03

03 03 03 03 03

03 03 03 03 03 03 03

03 03 03

03 03 MD MD MD MD MD MD

MD MD MD MD MD MD MD

MD MD MD

MD MD 24-005-3001 24-023-0002 24-033-0030 24-510-0040 SUMMARY

24-005-3001 24-023-0002 24-025-9001 24-033-0030 24-510-0040 SUMMARY

24-047-1001 SUMMARY

24-003-0014 24-005-1007 1

1 1 1

2 1 1 1 1

1

1 1 S S-PN PN S

S S-PN UP S-PN S

NR-F

S S 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09

01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09

01-APR-09

01-APR-09 01-APR-09 31-DEC-09

31-DEC-09 31-DEC-09 31-DEC-09

31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09

31-OCT-09

31-OCT-09 31-OCT-09 App A?:

App A?:

App A?:

App A?: -4.84 -7.78

-6.31 -6.31

3.85 -1.22 4.49 -1.80

1.35 1.35

7.39

7.39 7.39

2.52 -3.13 9.21 2.33 0.00 10.35 5.47 5.47

1.53 -2.66

-4.35 -1.83 -1.83

2.51 -2.94 6.81

1.00 3.91 3.91

1.00

-0.74 0.13 0.13 3.24

-2.56 0.34 0.34

4.88

-4.84 0.02 0.02 3 3 3 3 12 12

3 0

3 6 6

0 0 3 0 0 0 3 3

0 3

3 6 6

3 3 0 0 3 0 3 3

3 3

0 6 6

3 3 3 3 0 3 9 9

3 0

3 6 6

0 0 Avg %D / Level

Avg %D / Level

Avg %D / Level

Avg %D / Level L1

L1

L1

L1 L2

L2

L2

L2 L3

L3

L3

L3 L4

L4

L4

L4 L5

L5

L5

L5 Q1

Q1

Q1

Q1 Q2

Q2

Q2

Q2 Q3

Q3

Q3

Q3 Q4

Q4

Q4

Q4 Obs / Q

Obs / Q

Obs / Q

Obs / Q Met?

Met?

Met?

Met? Criteria

Criteria

Criteria

Criteria Y Y Y Y

Y N N N Y

N

Y Y 100 100

40 40

0 0 -7.10 -7.10

-5.72 -5.72 4.36 4.36

5.24 5.24 Conf. Limits

Conf. Limits

Conf. Limits

Conf. Limits Lower

Lower

Lower

Lower Upper

Upper

Upper

Upper 63

63

75 75 % Btwn

% Btwn

% Btwn

% Btwn Conf.

Conf.

Conf.

Conf. 1-Point

1-Point

1-Point

1-Point

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM Aug. 11, 2010 

# DATA QUALITY INDICATOR REPORT

Page5of10 

# Annual Performance Evaluations

O3

SO2 Pollutant:

Pollutant: 1002 (State Of Maryland Air Management Administration)

1002 (State Of Maryland Air Management Administration) PQAO:

PQAO: Yes

Yes Year

Year Region

RegionState

State Site ID

Site ID POC

POC MT

MT Begin

Date

Begin Date End

Date

End Date 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 SUMMARY

2009 2009 2009 2009 SUMMARY 03

03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03

03 03 03 03 03 MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD

MD MD MD MD MD 24-005-3001 24-009-0011 24-013-0001 24-015-0003 24-017-0010 24-021-0037 24-023-0002 24-025-1001 24-025-9001 24-029-0002 24-031-3001 24-033-0030 24-033-8003 24-043-0009 24-510-0054 SUMMARY

24-005-3001 24-023-0002 24-033-0030 SUMMARY 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 1 1 S S S S S S S-PN S S S S S-PN S S S

S S-PN S-PN 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09 01-APR-09

01-JAN-09 01-JAN-09 01-JAN-09 31-OCT-09

31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09 31-OCT-09

31-DEC-09 31-DEC-09 31-DEC-09 App A?:

App A?: -1.25 1.25 0.00 2.50 0.00 0.00 4.17 -2.47 0.00 -2.53 3.75 1.25 0.00 -1.25 0.15 0.48 0.48

-7.14 -11.31 -9.23 -9.23 -0.63 0.63 -0.63 1.85 0.63 0.63 4.58 3.13 -0.63 -3.72 4.41 3.14 0.00 0.63 0.00 0.79 0.79

-5.75 -10.55 -8.15 -8.15 -1.25 1.67 -0.42 2.94 0.42 1.67 5.00 3.75 -1.25 -1.67 4.60 1.67 0.00 1.25 0.42 1.08 1.08

5.08 1.68 -5.43 0.44 0.44 2.01

2.01 2.01 0.88

0.88 0.88 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

3 3 3 9 9 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 51 51

0 0 0 0 0 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 51 51

0 0 3 3 3 0 0 0 0 0 0 3 0 0 0 0 6 0 0 0 9 9

0 3 0 3 3 Avg %D / Level

Avg %D / Level L1

L1 L2

L2 L3

L3 L4

L4 L5

L5 Q1

Q1 Q2

Q2 Q3

Q3 Q4

Q4 Obs / Q

Obs / Q Met?

Met? Criteria

Criteria Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y

Y Y Y 100 100

100 100 -2.53 -2.53

-6.77 -6.77 2.43 2.43

2.61 2.61 Conf. Limits

Conf. Limits Lower

Lower Upper

Upper 59

59

47 47 % Btwn

% Btwn Conf.

Conf. 1-Point

1-Point

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM Aug. 11, 2010 

# DATA QUALITY INDICATOR REPORT

Page6of10 

# Flow Rate Verifications

PM2.5 Pollutant: 1002 (State Of Maryland Air Management Administration) PQAO: Yes App A?:

Year Region State Site ID POC MT Begin Date End

Date # Req # Obs % Complete Bias 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 SUMMARY 03

03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD 24-003-1003 24-005-3001 24-015-0003 24-015-0003 24-025-1001 24-031-3001 24-031-3001 24-033-0025 24-033-0030 24-033-0030 24-033-8003 24-510-0007 24-510-0008 24-510-0040 SUMMARY 1

1 1 3 1 1 3 1 1 3 1 1 1 3 S S S SP S S SP S S-PN SP S S S SP 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 31-DEC-09

31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 12

12 12 12 12 12 12 12 12 12 12 12 12 12 240 240 37

8 10 24 12 10 25 20 23 24 7 18 8 24 250 250 100 67 83 100 100 83 100 100 100 100 58 100 67 100 63 63 1.43

1.01 0.17 0.93 0.59 0.42 0.42 1.16 0.50 0.87 2.63 1.79 0.43 0.62 0.77 0.77 +/-
+ +/-
+

-

- + +

-

-

- +/- +/- +/- +/- +/- Average % D 0.34 0.67 -0.06 0.61 -0.11 -0.31 0.14 0.80 -0.04 -0.60 -1.97 -0.46 -0.15 0.16 0.05 0.05

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM Aug. 11, 2010 

# DATA QUALITY INDICATOR REPORT

Page7of10 

# Semi-Annual Flow Rate Audits

PM10

PM2.5 Pollutant:

Pollutant: 1002 (State Of Maryland Air Management Administration)

1002 (State Of Maryland Air Management Administration) PQAO:

PQAO: Yes

Yes Year

Year Region

RegionState

State Site ID

Site ID POC

POC MT

MT Begin

Date

Begin Date End

Date

End Date 2009 2009 2009 2009 SUMMARY

2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 SUMMARY 03

03 03 03 03

03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 MD MD MD MD MD

MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD MD 24-003-1003 24-003-1003 24-510-0008 SUMMARY

24-003-1003 24-005-1007 24-005-1007 24-005-3001 24-015-0003 24-015-0003 24-025-1001 24-031-3001 24-031-3001 24-033-0025 24-033-0030 24-033-0030 24-033-8003 24-033-8003 24-043-0009 24-510-0006 24-510-0007 24-510-0008 24-510-0040 24-510-0040 SUMMARY 1

2 1

1 1 2 1 1 3 1 1 3 1 1 3 1 2 1 1 1 1 1 3 S QA S

S S QA S S SP S S SP S S-PN SP S S-QA S S S S S SP 01-JAN-09 01-JAN-09 01-JAN-09

01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 01-JAN-09 31-DEC-09

31-DEC-09 31-DEC-09

31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 31-DEC-09 App A?:

App A?: 2 2 2 6 6

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 40 40 2 2 2 6 6

3 1 1 4 3 3 3 2 4 2 2 4 2 2 2 3 3 3 4 3 54 54 100

100 100 100 100

100 50 50 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 95 95 1.0 1.3 -0.5 0.6 0.6

0.6 1.3 -0.4 0.9 -0.6 -0.8 -0.4 -0.4 0.0 1.2 0.6 -0.4 -0.8 0.3 -0.1 -0.2 0.7 -0.1 -1.0 0.4 0.0 0.0 # Req

# Req #Q w/ Data

#Q w/ Data Avg %d

Avg %d Met?

Met? Criteria

Criteria Y Y N

N N N Y Y Y N N Y N N Y Y Y Y Y N Y Y Y 67 67

60 60 -2.01 -2.01 2.11 2.11 Conf. Limits

Conf. Limits Lower

LowerUpper

Upper 0

0

89 89 % Between

% Between Conf. Limits

Conf. Limits Flow Rate

Flow Rate % Complete

% Complete 1

1 1 3 3

2 0 0 2 1 1 1 0 1 0 0 1 0 0 0 1 1 1 2 1 15 15 0 0 0 0 0

0 0 0 1 0 0 0 1 1 0 0 1 1 1 1 0 0 0 1 1 9 9 1 1 0 2 2

1 1 1 2 1 3 1 0 1 1 1 1 0 0 0 1 1 1 1 1 19 19 0 0 1 1 1

1 0 0 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 2 0 20 20 Q1

Q1 Q2

Q2 Q3

Q3 Q4

Q4 Obs / Q

Obs / Q

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM Aug. 11, 2010 

# DATA QUALITY INDICATOR REPORT

Page8of10 

# Collocation Detail

PM10

PM2.5 Pollutant:

Pollutant: 1002 (State Of Maryland Air Management Administration)

1002 (State Of Maryland Air Management Administration) PQAO:

PQAO: Yes

Yes App A?:

App A?: Year

Year Region

Region State

State Site ID

Site ID POC

POC MT

MT Begin

Date

Begin Date End

Date

End Date # Req

# Req # Obs

# Obs %

Complete

% Complete CV

CV 2009

2009 2009 2009 03

03 03 03 MD

MD MD MD 24-003-1003

24-033-8003 24-005-1007 24-033-8003 1

1 1 1 S

S S S 01-JAN-09

23-SEP-09 01-JAN-09 01-JAN-09 31-DEC-09

30-DEC-09 30-DEC-09 10-SEP-09 30

8 30 21 23

7 28 18 77

88 93 86 3.76

11.03 4.87 4.83 81102

88101 88101 88101 Parameter Code

Parameter Code Method

Method 118 120 120 # Valid

# Valid 22

6 28 18

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM Aug. 11, 2010 

# DATA QUALITY INDICATOR REPORT

Page9of10 

# Collocation Summary

PM10

PM2.5 Pollutant:

Pollutant: 1002 (State Of Maryland Air Management Administration)

1002 (State Of Maryland Air Management Administration) PQAO:

PQAO: Yes

Yes App A?:

App A?: Year

Year Region

Region State

State # Req

# Req # Obs

# Obs %

Complete

% Complete CV

CV 2009 SUMMARY

2009 2009 2009 2009 SUMMARY 03 03

03 03 03 03 03 MD MD

MD MD MD MD MD 30

60 60 30 23

7 46 0 77 77

12 77 0 30 30 3.76

3.76

11.03 4.75

5.05 5.05 # Sites

# Sites 2

10 14 4 # Collocated Required

# Collocated Required 1

2 2 1 # Actually Collocated

# Actually Collocated 1

1 2 0 % Req. Sites

Collocated

% Req. Sites Collocated 100 100

50 100 0 50 50 118 120 170 SUMMARY Method

Method # Valid Obs

# Valid Obs 22 22

6 46 0 52 52

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM Aug. 11, 2010 

# DATA QUALITY INDICATOR REPORT

Page10of10 

# Performance Evaluation Program (PEP)

PM2.5 Pollutant: 1002 (State Of Maryland Air Management Administration) PQAO: Yes App A?:

Year Region State # Collocated PEP Coll. %

Complete Bias 2009 SUMMARY 03

03 MD MD 0 100 100 13.05

13.05 # Sites 14 #PEP Required 8 # PEP Collected 8 # Collocated PEP Req 0

-

- -18.25

-18.25 -7.85

-7.85 Conf. Limits Lower Upper