CASTNET Quality Assurance Report First Quarter 2012

Summary of Quarterly Operations (January - March)

EPA Contract No. EP-W-09-028

Introduction

This quarterly report summarizes results from the Clean Air Status and Trends Network
(CASTNET) quality assurance/quality control (QA/QC) program for data collected during first
quarter 2012. The results presented for filter pack data collection and field calibrations are
generated from data extracted from the CASTNET Data Management Center database using the
CASTNET Data Management System Application. The various QA/QC criteria and policies are
documented in the CASTNET Quality Assurance Project Plan (QAPP). The QAPP is
comprehensive and includes standards and policies for all components of project operation from
site selection through final data reporting. It is reviewed annually and updated as warranted.

EPA issued Contract Modification 0032 to the CASTNET IV contract (EP-W-09-028) on
April 6, 2012 to accept AMEC E&I, Inc.'s name change to AMEC Environment &

Infrastructure, Inc. (AMEC).

AMEC has continued working with the manufacturer of the flow transfer standards used for the
network to resolve the measurement errors AMEC discovered in 2011. The manufacturer has
identified a defect in the model used for network calibrations between 2000 and 2011, which
affects all units of this model. The defect affects ambient pressure readings used to calculate
"standard" flow rates (i.e., rates scaled to standard temperature and pressure). At pressures below
one atmosphere, these units read erroneously high pressure values. The magnitude of the error
increases as the ambient pressure decreases. The faulty units are no longer manufactured. AMEC
began using the replacement model in the field along with the older units during 2011. The
differences between these models sparked the subsequent investigations. The replacement model
has been verified to accurately measure ambient pressures in the range expected for CASTNET
sites, including the high elevation sites in the network. The issue was discussed by project
participants during a summit meeting in March 2012. EPA made the decision to make the
documented transition to the newer, replacement standards at the beginning of 2013. In the

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CASTNET Quality Assurance Report — First Quarter 2012

meantime, AMEC and the manufacturer will continue investigating with the goal of quantifying
the error and providing users with a measure of uncertainty for affected data. The corrective
actions to be implemented by AMEC include:

• Requiring documentation from the manufacturer that verifies pressure readings in the
range expected at network sites. This information will be added to all flow standard
certification documents produced by the manufacturer for AMEC standards.

• Collecting audit data from both flow standard models during all calibrations through
the end of 2012.

During first quarter 2012, the CASTNET QA Manager completed an audit of the preparation,
use, and return of the calibration and repair kits. The first phase of the audit focused on the
procedures and preparation of the calibration and repair kits used by site calibrators and
technicians. A few minor items were missing from the calibration kit. The checklists used when
packing the kits will be revised to provide additional details for the packers. Implementation of a
peer review process will be evaluated. The second phase consisted of an audit of the process and
procedures for handling the kits after they are returned to AMEC. The repair and calibration kits
returned by one of AMEC's field subcontractors did not have complete documentation. Making
modifications to select forms in order to provide reminders was recommended. Kits returned by
other AMEC field subcontractors also will be audited. A follow up audit to verify that findings
and recommendations resulting from the audit have been addressed will take place during second
quarter 2012.

AMEC continued planning for an on-site technical systems audit (TSA) of AMEC's CASTNET
field instrumentation laboratory. A TSA of the ozone monitoring support provided by the facility
is required by EPA since AMEC is the monitoring organization in charge of EPA-sponsored
CASTNET Air Quality System (AQS)-protocol sites. AMEC contacted RTI International about
performing the audit. The audit will occur no sooner than late June, and could take place as late
as September 2012.

During March 2012, AMEC received results from sample analyses for proficiency test (PT)
study 0099 for Rain and Soft Waters from the National Laboratory of Environmental Testing
(NLET), a branch of the National Water Research Institute (NWRI) with Environment Canada
that provides quality assurance (QA) services. AMEC's laboratory received a warning flag for
being biased high on two ammonia sample results. The laboratory identified the source of the
error and will implement corrective action during second quarter 2012. Overall, the laboratory
was rated "Good" for PT 0099 analyses, and AMEC's 5-year median rating remained "Very
Good." AMEC regularly participates in laboratory intercomparison tests offered by Environment
Canada and the U.S. Geological Survey.

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CASTNET Quality Assurance Report — First Quarter 2012

Table 1 lists the quarters of data that were validated to Level 3 during first quarter 2012
by site calibration group. Table 2 lists the sites in each calibration group along with the
calibration schedule.

Table 3 presents the measurement criteria for continuous field measurements. These criteria
apply to the instrument challenges performed during site calibrations. Table 4 presents the
measurement criteria for laboratory filter pack measurements. These criteria apply to the QC
samples listed in the following section of this report. Table 5 presents the critical criteria for
ozone monitoring at sites that are configured to meet EPA's AQS criteria for QA/QC procedures
and are operated in accordance with Part 58 of Title 40 of the Code of Federal Regulations.

Quality Control Analysis Count

The QC sample statistics presented in this report are for reference standards (RF) and continuing
calibration verification spikes (CCV) used to assess accuracy and for replicate sample analyses
(RP) used to assess "in-run" precision. In addition, laboratory method blanks (MB) containing
reagents without a filter; laboratory blanks (LB) containing reagents and a new, unexposed filter;
and field blanks (FB) containing reagents and an unexposed filter that was loaded into a filter
pack assembly and shipped to and from the monitoring site while remaining in sealed packaging
are also included. Table 6 presents the number of analyses in each category that were performed
during first quarter 2012.

Sample Receipt Statistics

Ninety-five percent of field samples from EPA-sponsored sites must be received by the
CASTNET laboratory in Gainesville, FL no later than 14 days after removal from the sampling
tower. Table 7 presents the relevant sample receipt statistics for first quarter 2012.

Data Quality Indicator (DQI) Results

Figures 1 through 3 present the results of RF, CCV, and RP QC sample analyses for first
quarter 2012. All results were within the criteria listed in Table 4.

Table 8 presents summary statistics of critical criteria measurements at AQS-protocol ozone sites
collected during the quarter. All data associated with QC checks that fail to meet the criteria
listed in Table 5 will be invalidated unless there is documented evidence that the problem can be
verifiably traced to a system or subsystem that does not affect reported data. Results in shaded
cells either exceed documented criteria or are otherwise notable. Table 9 presents observations
associated with the shaded cell results in Table 8.

Laboratory Control Sample Analysis

The laboratory control sample (LCS) is a reagent blank spiked with the target analytes from the
established analytical methods and carried through the same extraction process that field samples

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CASTNET Quality Assurance Report — First Quarter 2012

must undergo. The LCS is not required by the CASTNET QA/QC program. LCS analyses are
performed by the laboratory to monitor for potential sample handling artifacts and provide a
means to identify possible analyte loss from extraction to extraction. The current action limits for
LCS recovery are 80 percent and 120 percent. Figure 4 presents LCS analysis results for first
quarter 2012. All recovery values were between 95 percent and 110 percent.

Blank Results

Figures 5 through 7 present the results of MB, LB, and FB QC sample analyses for first
quarter 2012. All results were within criteria (two times the reporting limit) listed in Table 4.

Suspect/Invalid Filter Pack Samples

Filter pack samples that were flagged as suspect or invalid during first quarter 2012 are listed in
Table 10. This table includes associated site identification and a brief description of the reason
the sample was flagged. During first quarter, seven filter pack samples were invalidated.

Field Problem Count

Table 11 presents counts of field problems affecting continuous data collection for more than one
day during first quarter 2012. The problem counts are sorted by a 30-, 60-, or 90-day time period
to resolution. A category for unresolved problems is also included. Time to resolution indicates
the period taken to implement corrective action.

Field Calibration Results

Calibrations were performed at 24 sites during first quarter 2012. All sites and parameters were
within the criteria listed in Table 3 with the exception of one parameter at the site listed in
Table 12.

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CASTNET Quality Assurance Report — First Quarter 2012

Table 1. Data Validated to Level 3 during First Quarter 2012

Calibration
Group*

Months
Available

Number of
Months

Complete
Quarters

Number of
Quarters

E-2/MW-8

April 2011 -
September 2011

6

Quarter 2,2011-
Quarter 3, 2011

2

E-3AV-10t

May 2011 -
October 2011

6

Quarter 3, 2011

1

SE-4/MW-6'

July 2011 -
December 2011

6

Quarter 3, 2011 —
Quarter 4,2011

2

Note: * The sites contained in each calibration group are listed in Table 2.
•f Contains ROM206 of the ROM406/ROM206 collocated pair
J Contains MCK131/231 collocated pair

Table 2. Field Calibration Schedule

Calibration
Group

Months
Calibrated

Sites
Calibrated

Eastern Sites (20 Total)

E-l

(8 Sites)

February/August

BEL 116, MD WSP144, NJ ARE 128, PA PED108,VA
BWR139, MD CTH110, NY PSU106, PA VPI120, VA

E-2
(7 Sites)

April/October

ABT147, CT HOW132, ME CAT175,NY EGB181 ON
WST109, NH ASH135, ME HWF187,NY

E-3
(5 Sites)

May/November

KEF 112, PA LRL117, PA CDR119,WV
MKG113, PA PARI07, WV

Southeastern Sites (10 Total)

SE-4
(6 Sites)

January/July

SND152, AL BFT142, NC COW137,NC
GAS 153, GA CND125, NC PNF126,NC

SE-5
(4 Sites)

February/August

CAD 150, AR IRL141, FL
CVL151, MS SUM 15 6, FL

Midwestern Sites (18 Total)

MW-6
(6 Sites)

January/July

CDZ171, KY MCK131, KY ESP127,TN
CKT136, KY MCK231, KY SPD111,TN

MW-7
(8 Sites)

March/September

ALH157, IL STK138, IL DCP114, OH QAK172, OH
BVL130, IL VIN140, IN OXF122, OH PRK134,WI

MW-8
(4 Sites)

April/October

SAL133, IN ANA115, MI
HOX148, MI UVL124, MI

Western Sites (9 Total)

W-9
(4 Sites)

March/September

KNZ184, KS SAN 189, NE
CHE185, OK ALC188, TX

W-10

(5 Sites)

May/November

GTH161, CO CNT169, WY PAL 190, TX
ROM206, CO PND165, WY

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CASTNET Quality Assurance Report — First Quarter 2012

Table 3. Data Quality Indicators for CASTNET Continuous Measurements

Measurement

Criteria1

Parameter2

Method

Precision

Accuracy

Filter pack flow

Mass flow controller

± 10%

±5%

Ozone3

UV absorbance

All points within ± 2% of full scale of best fit
straight line

Linearity error <5%

Wind speed

Anemometer

± 0.5 m/s

The greater of ± 0.5 m/s
for winds < 5 m/s or
± 5% for winds > 5 m/s

Wind direction

Wind vane

±5°

Sigma theta

Wind vane

Undefined

Ambient temperature

Platinum RTD

± 1.0°C

±0.5°C

Delta temperature

Platinum RTD

±0.5°C

Relative humidity

Thin film capacitor

± 10% (of full scale)

± 10%

Precipitation

Tipping bucket rain
gauge

± 10% (of reading)

±0.05 inch4

Solar radiation

Pyranometer

± 10% (of reading taken
at local noon)

± 10%

Surface wetness

Conductivity bridge

Undefined

Notes: °C = degrees Celsius
m/s = meters per third
RTD = resistance-temperature device
UV = ultraviolet

1 Precision criteria apply to collocated instruments, and accuracy criteria apply to calibration of instruments. Collocated precision criteria
do not apply to AQS-protocol ozone measurements.

2 As of January 2011, meteorological parameters were only measured at four of the EPA-sponsored CASTNET sites: PAL190, TX;
CHE185, OK; BVL130. IL; and BEL116. MD.

3 Ozone is not measured at two EPA-sponsored CASTNET sites: EGB181, ON and CAT175, NY.

For target value of 0.50 inch

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CASTNET Quality Assurance Report — First Quarter 2012

Table 4. Data Quality Indicators for CASTNET Laboratory Measurements

Analyte

Method

Precision1
(MARPD)

Accuracy2
(%)

Nominal
Reporting Limits

mg/L

|xg/Filter

Ammonium (NH4)

AC

20

90-110

0.020*

0.5

Sodium (Na+)

ICP-AES

20

95 - 105

0.005

0.125

Potassium (K+)

ICP-AES

20

95 - 105

0.006

0.15

Magnesium (Mg2 )

ICP-AES

20

95 - 105

0.003

0.075

Calcium (Ca2+)

ICP-AES

20

95 - 105

0.006

0.15

Chloride (CI )

IC

20

95 - 105

0.020

0.5

Nitrate (N03)

IC

20

95 - 105

0.008*

0.2

Sulfate (SO4)

IC

20

95 - 105

0.040

1.0

Notes: 1 This column lists precision goals for both network precision calculated from collocated filter samples and laboratory precision based on
replicate samples.

2 This column lists laboratory accuracy goals based on reference standards and continuing calibration verification spikes. The criterion is
90-110 percent for ICP-AES reference standards.

AC	= automated colorimetry

IC	= ion chromatography

ICP-AES = inductively coupled plasma-atomic emission spectrometry
MARPD = mean absolute relative percent difference
*	= as nitrogen

Values are rounded according to American Society for Testing and Materials (ASTM) (Standard Practice for Using Significant Digits in Test Data to Determine Conformance with
Specifications E 29).

For more information on analytical methods and associated precision and accuracy criteria, see the CASTNET QAPP, Revision 7.0
(MACTEC Engineering and Consulting, Inc., now known as AMEC, 2011).

*

Table 5. AQS-Protocol Ozone Critical Criteria

Type of Check

Analyzer Response

Zero

Less than ±10 parts per billion (ppb)

Span

Less than or equal to ± 7 percent between supplied and observed concentrations

One Point QC

Less than or equal to ± 7 percent between supplied and observed concentrations

Note: * Applies to CASTNET sites that are configured and operated in accordance with Part 58 of Title 40 of the Code of Federal Regulations

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CASTNET Quality Assurance Report — First Quarter 2012

Table 6. QC Analysis Count for First Quarter 2012

Filter
Type

Parameter

RF
Sample
Count

ccv

Sample
Count

RP
Sample
Count

MB
Sample
Count

LB
Sample
Count

FB
Sample
Count

Teflon

so2;

34

176

77

17

26

118



no;

34

176

84

17

26

118



nh;

36

178

97

18

26

118



cr

34

176

84

17

26

117



Ca2+

34

175

84

17

26

117



Mg2+

34

175

84

17

26

117



Na+

34

175

84

17

26

117



K+

34

175

84

17

26

117

Nylon

so2;

28

153

67

14

24

81



no;

28

153

75

14

24

81

Cellulose

so2;

44

166

81

21

24

81

Table 7. Filter Pack Receipt Summary for First Quarter 2012

Count of samples received more than 14 days
after removal from tower:

10

Count of all samples received:

783

Fraction of samples received within 14 days:

0.987

Average interval in days:

4.58

First receipt date:

01/03/2012

Last receipt date:

03/30/2012

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CASTNET Quality Assurance Report — First Quarter 2012

Table 8. AQS-Protocol Ozone QC Summary (1 of 2)

Site ID

% Span
Pass1

Span

|%D |2

% One
Point
QC Pass

One
Point
QC
|%D|

One
Point
QC CL3

% Zero
Pass

Zero
Average
(PPb)

ABT147, CT

100.00

1.20

100.00

1.33

0.09

98.84

0.97

ALC188, TX

94.19

282.22

86.05

207.74

206.82

79.78

5.27

ALH157, IL

100.00

0.93

100.00

0.79

0.06

100.00

0.34

ANA115, MI

100.00

0.88

100.00

1.04

0.08

100.00

0.32

ARE128, PA

88.04

13.61

88.04

14.22

6.42

98.92

1.02

ASH135, ME

100.00

4.29

100.00

4.28

0.08

100.00

0.26

BEL 116, MD

100.00

1.09

100.00

1.66

0.09

100.00

0.25

BFT142, NC

100.00

1.40

100.00

1.43

0.20

100.00

1.02

BVL130, IL

100.00

3.38

100.00

3.77

0.11

100.00

0.53

BWR139, MD

100.00

0.58

100.00

0.63

0.12

100.00

0.40

CAD 150, AR

98.91

2.33

97.83

2.52

1.77

100.00

0.38

CDR119, WV

100.00

0.75

100.00

0.74

0.06

100.00

1.14

CDZ171, KY

96.81

3.16

96.81

3.06

2.57

98.94

0.93

CKT136, KY

100.00

1.28

98.96

1.11

0.19

100.00

1.04

CND125, NC

91.49

8.01

91.49

7.66

3.94

91.49

3.01

CNT169, WY

100.00

0.86

100.00

2.28

0.24

98.68

0.78

COW 13 7, NC

96.74

2.23

96.74

2.21

0.38

100.00

0.36

CTH110, NY

100.00

1.70

100.00

1.24

0.10

100.00

0.38

CVL151, MS

95.70

4.16

95.65

4.65

2.70

94.62

2.48

DCP114, OH

97.87

14.54

97.87

14.80

15.56

100.00

0.41

ESP127, TN

100.00

0.38

100.00

0.47

0.08

100.00

0.78

GAS 153, GA

98.81

0.67

100.00

0.99

0.10

100.00

0.60

GTH161, CO

96.74

3.82

96.70

2.55

1.34

96.74

1.83

HOW 132, ME

100.00

1.53

100.00

1.53

0.05

100.00

1.53

HOX148, MI

100.00

0.31

100.00

0.35

0.05

100.00

0.23

HWF187, NY

90.22

2.99

93.48

2.67

0.26

100.00

0.71

IRL141, FL

100.00

0.59

100.00

0.34

0.04

100.00

1.16

KEF 112, PA

100.00

0.34

100.00

0.47

0.08

100.00

2.06

KNZ184, KS

100.00

0.34

100.00

0.58

0.07

100.00

0.85

LRL117, PA

100.00

1.90

96.39

2.10

0.41

97.87

1.08

MCK131, KY

100.00

2.91

100.00

3.15

0.08

100.00

0.31

MCK231, KY

100.00

2.27

100.00

2.24

0.17

98.89

1.08

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CASTNET Quality Assurance Report — First Quarter 2012

Table 8. AQS-Protocol Ozone QC Summary (2 of 2)

Site ID

% Span
Pass1

Span

|%D |2

% One
Point
QC
Pass1

One
Point
QC

|%D|2

One
Point
QC CL3

% Zero
Pass1

Zero
Average
(PPb)2

MKG113, PA

91.95

7.26

90.80

7.41

3.68

90.91

2.80

OXF122, OH

100.00

2.90

100.00

3.27

0.28

100.00

0.30

PAL 190, TX

100.00

1.32

100.00

1.26

0.07

100.00

0.33

PARI 07, WV

84.04

78020.63

84.04

27529.41

15217.62

100.00

0.34

PED108, VA

100.00

0.99

100.00

0.92

0.08

100.00

0.29

PND165, WY

100.00

1.68

100.00

0.90

0.10

100.00

0.52

PNF126, NC

100.00

0.33

100.00

0.44

0.08

100.00

0.20

PRK134, WI

85.11

11.81

86.17

7.41

2.75

89.36

4.86

PSU106, PA

100.00

1.39

100.00

1.37

0.09

100.00

0.29

QAK172, OH

92.47

1.91

92.47

2.32

0.29

100.00

0.62

ROM206, CO

97.83

3.88

98.91

3.17

0.89

96.81

1.79

SAL133, IN

100.00

0.65

100.00

0.81

0.07

100.00

1.93

SAN 189, NE

100.00

0.99

100.00

0.77

0.07

100.00

0.22

SND152, AL

100.00

1.41

100.00

1.26

0.07

100.00

0.20

SPD111, TN

100.00

0.80

100.00

0.58

0.08

100.00

0.29

STK138, IL

98.92

3.79

98.92

3.64

0.98

98.92

1.06

SUM 15 6, FL

100.00

0.74

100.00

0.73

0.11

100.00

0.19

UVL124, MI

100.00

2.73

100.00

3.12

0.18

100.00

0.40

VIN140, IN

96.88

15.99

96.88

15.92

15.92

100.00

0.56

VPI120, VA

100.00

0.96

100.00

0.91

0.11

100.00

0.73

WSP144, NJ

100.00

0.35

100.00

0.86

0.06

100.00

0.44

WST109, NH

97.80

7.05

97.80

7.01

1.83

98.90

1.30

Notes: 1 Percentage of comparisons that pass the criteria listed in Table 5. Values falling below 90 percent are addressed in Table 9.

2	Absolute value of the average percent differences between the on-site transfer standard and the site monitor. Values exceeding the
criteria listed in Table 5 are addressed in Table 9.

3	90% confidence limit of the coefficient of variation. This should be less than or equal to the 7% one point QC check critical criterion.
Values exceeding this criterion are addressed in Table 9.

%D = percent difference
CL = confidence limit
ppb = parts per billion

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Table 9. AQS-Protocol Ozone QC Observations

Site ID

QC Criterion

Comments

ALC188, TX

Span %D, % Single Point
QC Pass, Single Point QC
%D, Single Point QC CL,
% Zero Pass

There was a flow leak in a zero air canister connection
that lasted for approximately three days. Ambient data
were not affected.

ARE128, PA

% Span Pass, Span %D,
% Single Point QC Pass,
Single Point QC %D

The analyzer's sample pump failed affecting reported
values for three weeks until the analyzer was replaced.

CND125, NC

Span %D , Single Point
QC %D

Investigation is inconclusive to date. If no source of
error is found, the associated data will be invalidated.

DCP114, OH

Span %D , Single Point
QC %D, Single Point
QC CL

The pressure transducer in the site analyzer was
malfunctioning.

MKG113, PA

Span %D , Single Point
QC %D

The pressure transducer in the site analyzer was
malfunctioning.

PARI 07, WV

%Span Pass, Span %D,
% Single Point QC Pass,
Single Point QC %D,
Single Point QC CL

The site transfer standard internal solenoid
malfunctioned. The transfer standard was replaced in
about one week. Ambient data were not affected.

PRK134, WI

%Span Pass, Span %D,
% Single Point QC Pass,
Single Point QC %D,
% Zero Pass

The zero air tubing was disconnected for about one
week. Ambient data were not affected.

VIN140, IN

Span %D, Single Point QC
%D, Single Point QC CL

The pressure transducer in the site analyzer was
malfunctioning.

WST109, NH

Span %D , Single Point
QC %D

There was a flow leak in one of the zero air canisters
that lasted for approximately two days. Ambient data
were not affected.

Notes: %D = percent difference
CL = confidence limit

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Table 10. Filter Packs Flagged as Suspect or Invalid

Site ID

Sample No.

Reason

BFT142, NC

1202001-10

Polling problems



1203001-10

Polling problems



1206001-10

Polling problems



1207001-10

Polling problems

CKT136, KY

1208001-20

Insufficient flow volume

CNT169, WY

1203001-22

Polling problems

GAS 153, GA

1201001-31

Polling problems

Table 11. Field Problems Affecting Data Collection

Days to Resolution

Problem Count

30

162

60

9

90

0

Unresolved by End of Quarter

4

Table 12. Field Calibration Failures by Parameter

Site ID

Parameter(s)

COW 13 7, NC

Flow Rate

Note: Per CASTNET project protocols, data for all parameters except flow are flagged as
"suspect" (S) but still considered valid if the calibration criterion is not exceeded by
more that its magnitude (i.e., if within 2x the criterion). If flow calibrations fall
within 2x the criteria, these data are adjusted per approved protocol described in the
CASTNET QAPP, Revision 7.0 (MACTEC Engineering and Consulting, Inc., now
known as AMEC, 2011). Please refer to Table 8 for documentation of the QC
failures affecting the validity of AQS-protocol ozone data.

M1EC Project No. 6064110218

12

AA1EC Environment & Infrastructure, Inc.

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EPA Contract No. EP-W-09-028

CASTNET Quality Assurance Report — First Quarter 2012

Figure 1. Reference Standard Results for First Quarter 2012 (percent recovery)

RF - Teflon ICP-AES

:

j





~







A

















~

A
~

~
A

~

4

A

A

A

Y

» *

A

A

~

1







1 i

X
&

t

8

1

&
~



*

o

i :

1

~

S

i

O

X

A

A
*



~

~

~



~





i

~







o
£

1

*



























~



0

:

=

-1/3/2012

-1/5/2012

-1/9/2012

-1/11/2012

-1/16/2012

-1/18/2012

-1/25/2012

-2/1/2012

-2/13/2012

Q

-2/8/2012 $

i

-2/15/2012

-2/22/2012

-2/29/2012

-3/7/2012

-3/14/2012

-3/21/2012

-3/22/2012

95.0
925
90.0

110.0
1075
105.0
1025

! 100.0

: 975

RF-Teflon IC& AC

TSQ4

TNQ3

TNH4

~ ? t

~ ~ ~ ~

O O

A

Aialysis Date

RF-Nylon IC

CZ]

N934

m

NHNQ3

O 0

975
95.0
925
90.0

35







K5

a

is

h3

K5





nJ

nJ



1

o

§





§

1

o



o

o



RF-Cellulose IC

110.0 -
1075 -
105.0 -
1025 -
! 100.0 -

WSQ2

H	h

AMEC Project No. 6064110218

13

AA-1EC Environment & Infrastructure. Inc.

-------
EPA Contract No. EP-W-09-028

CASTNET Quality Assurance Report — First Quarter 2012

Figure 2. Continuing Calibration Spike Results for First Quarter 2012 (percent recovery)

95.0
925
90.0

110.0
1075
105.0
1025

! 100.0

: 975

975
95.0
925
90.0

110.0 -
1075 -
105.0 -
1025 -
! 100.0 -

CCV- Teflon ICP-AES

Mq	Na

+-M ! M | j I I 8 i i i f >

i	1	1	1	h

-i;	

§ §

i	h

i	h

-i	h

-i	h

S § S

CO/-Teflon IC&AC

CZ]
TSQ4

TNQ3

cn

TNH4

h I ; > M t ~ M M n

I 1 ~ & 1 S m I a 1 p. 2 Q~

-Analysis Date

CCV-Nylon IC

NSQ4

NHNQ3

CCV-Cellulose IC

WSQ2

ft

K 1

AMEC Project No. 6064110218

14

AMEC Environment & Infrastructure, Inc.

-------
EPA Contract No. EP-W-09-028

CASTNET Quality Assurance Report — First Quarter 2012

Figure 3. Replicate Sample Analysis Results for First Quarter 2012 (percent difference)

RP - Teflon ICP-AES

Mq	

10.0

Jj

rn i i n n i i i t-M:

go W| R) K3 W W|
KJ	nJ	o	o	R3	nJ

20.0
17.5 ¦

10.0

I

RP-Teflon IC&AC

nn	i~5~i

TS04	TNQ3	TNH4

:

o
o

3
~

~ ~ „ ~ ~

: .. $ i I K > • 0 ! ¦ a ¦ 1 * !

O. sf^° ~ X

Analysis Date

RP-Nylon IC

im	m

NSQ4	NHN03

i

b 75



y I f q f i	^	§	f x f ~^	k	y 	t	S	|f

§
o

Analysis Date

20.0
17.5 ¦
15.0
12.5

i

Q 75

RP - Cellulose IC

WSQ2

X



AMEC Project No. 6064110218

15

AMEC Environment & Infrastructure, Inc.

-------
EPA Contract No. EP-W-09-028

CASTNET Quality Assurance Report — First Quarter 2012

Figure 4. Laboratory Control Sample Results for First Quarter 2012 (percent recovery)

LCS-Teflon ICP-AES

8-S-

-8-8-

tt

-T

-sg-

LCS-Teflon IC& AC

XTS04 OTN03

-»-»—8-

X

"os-



i	i	fa	?3

fa fa fa fa

LCS-Cellulose IC

XX



AMEC Project No. 6064110218

16

AMEC Environment & Infrastructure. Inc.

-------
EPA Contract No. EP-W-09-028

CASTNET Quality Assurance Report — First Quarter 2012

Figure 5. Method Blank Analysis Results for First Quarter 2012 (total micrograms)

0.15
0.14
0.13

0	°-12

1	0.11

O 0.10
0.09
0.08

IVB - Teflon ICP^\ES

Mq



































[
a

[
a

[
a

[

I

I

I

>1)

1

a

I

>1)

1

1

1

I

1

1

&







o

1

1

§





§

§

1

o



o

o

1

IVB-Teflon IC& AC

TSQ4

TNQ3

TNH4

i	1	h

i	h

Aialysis Date

IVB-Nylon IC

rm

NSQ4

NHNQ3

H	1	h

H	h

H	h

220 -

2.15 -

2.10 -

c 2.05 -

| 2.00 -

o 135-
O

130 -
1.85 -
1S0 -

IVB - Cellulose IC

WSQ2

H	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	h

AMEC Project No. 6064110218

17

AMEC Environment & Infrastructure. Inc.

-------
EPA Contract No. EP-W-09-028

CASTNET Quality Assurance Report — First Quarter 2012

Figure 6. Laboratory Blank Analysis Results for First Quarter 2012 (total micrograms)

0.15
0.14
0.13

0	°-12

1	0.11

O 0.10
0.09
0.08

LB-Teflon ICP-AES

m

Mq



























[
a

[
a

[

I

I

>1)

1

a

I

1

a

1

&

1

I

1

&





o

§

§





§

1

o



o

o

LB-Teflon IC&AC

[~X~I
TS04

TNQ3

cn

TNH4

Analysis Date

LB - Nylon IC

nn

N934

NHN03

H	h

220 -

2.15 -

2.10 -

c 2.05 -

| 2.00 -

o 135-
O

130 -
1.85 -
1S0 -

LB-Cellulose IC

WSQ2

AMEC Project No. 6064110218

18

AMEC Environment & Infrastructure. Inc.

-------
EPA Contract No. EP-W-09-028

CASTNET Quality Assurance Report — First Quarter 2012

Figure 7. Field Blank Analysis Results for First Quarter 2012 (total micrograms)

0.75 ¦
0.625 -

0.25 ¦
0.125 -

0.875 -
0.75 ¦

0.375 -
0.25 ¦

FB-Teflon ICP-AES
Da Mg O Na X K

FB - Teflon IC & AC
I XTSQ4 OTNQ3 TNH4 • CI I

XNSQ4 ONHNQ3

FB - Cellulose IC

AMEC Project No. 6064110218

19

AMEC Environment & Infrastructure. Inc.

-------