Rubidoux, CA NATTS Network Assessment Review

•	Established 2007: Carbonyls, Chromium VI, PAHs, PMio Metals, and VOCs

o Chromium VI ended in in 2014

•	For the NATTS Network Assessment (2007-2018):

o 14 of 18 Method Quality Objective (MQO) Core HAPs were included in the national trends

¦	Acetaldehvde and Formaldehyde: Low completeness (under 75%) in 2018

¦	Carbon Tetrachloride: High Bias (outside ± 35%) AND completeness was 79% in 2016.

¦	Vinyl Chloride: Low completeness (under 75%) in 2014 and 2016.
o 196 of 212 pollutant datasets were suitable for trends analysis

o Annual Average and 3-Year Rolling Average Concentrations were generally flat over time, with the
exception of a few pollutants (benzene, chromium VI, formaldehyde, tetrachloroethylene, and
trichloroethylene).
o 100% Reporting of Datasets

•	Method Quality Objectives (MQO): 2007-2018

o Completeness: Met 85% completeness in 201 of 212 pollutant datasets
o Method Detection Limits: Met MDL Target Ratio of 1.00 in 191 of 215 pollutant datasets
o Bias: Met ±25% for 124 of 146 pollutant datasets

o Overall Method Precision: Met <15% CV for 83 of 169 pollutant datasets
o Analytical Method Precision: Met <15% CV for 104 of 155 pollutant datasets

•	Analytical Laboratories for 2018

voc

Carbonyl

PMio Metals

Chromium VI

PAHs

SCAQMD

SCAQMD

SCAQMD

NA

ERG

• Equipment Year Deployed

Equipment Type

VOC

Carbonyl

PMio Metals

Chromium VI

PAHs

Sampler

2004

2018

2018

2007

2016

Analytical

2006

1999

2010

2007

2014

Preconcentrator

2017

NA

NA

NA

NA

Standards Preparation

2018

NA

NA

NA

NA

Canister Cleaning

2007

NA

NA

NA

NA

Extraction

NA

NA

2009

<2000

2004


-------
National Summary: NATTS data were collected at 27 locations across the United States,
with sites beginning in 2003 or later (Figure 1) for 19 core HAPs. Over 528,000 concentrations
(primary, secondary, and replicate) were generated and analyzed for this assessment. Pollutant
datasets were scored to assess whether they were suitable for trends analysis. Each
pollutant dataset was evaluated against four MQOs: Completeness; Sensitivity; Bias; and
Precision. Datasets that were suitable (A- or B-rated) for six consecutive years were used for
national trends analysis (Table 1).

National trends were determined by comparing the most recent 3-year blocked averages
(e.g., 2013-2015 vs. 2016-2018) to determine if the NATTS Trends DQO was being met:

To be able to detect a al5percent difference (trend) between the annual mean
concentrations of successive 3-year periods within acceptable levels of decision error.

Of the 19 core HAPs. 18 were assessed for the NATTS Trends DQO. Due to sampling and
analytical issues, acrolein was not considered for trends analysis (Table 2). This assessment
showed that across the network, 15 of those 18 pollutants were decreasing between the
3-year blocks, while two of those pollutants were increasing between the 3-year blocks.
One pollutant did not exhibit a trend.

Table 1. NATTS Network Assessment: Count and Percentage of Suitable
Datasets by Pollutant Group

Pollutant Group

A-rated

B-rated

Does Not Meet

#

%

#

%

#

%

VOCs

1,452

53%

737

27%

555

20%

Carbonyls

523

67%

193

25%

66

8%

PM10 Metals

1,418

61%

685

30%

213

9%

Chromium VI

159

74%

29

13%

27

13%

PAHs

410

74%

124

22%

18

3%

Total = 6,609

3,962

60%

1,768

27%

879

13%

Table 2. Three-Year Block Averages for National Trends

Pollutant

Units

# Sites

Block 1

Block 2

% Difference

Acetaldehyde

Hg/m3

19

1.51

1.39

-7.7%

Arsenic (PM10)

ng/m

21

0.71

0.68

-3.2%

Benzene

Hg/m3

19

0.65

0.59

-10.2%



Figure 1. NATTS Site and Year Established



Benzo(a)pyrene

ng/m3

21

0.113

0.087

-23.2%



Seattle, 		,



Beryllium (PM10)

ng/m3

20

0.012

0.009

-26.4%

Butadiene, 1,3-

Hg/m3

19

0.071

0.063

-10.9%

Portland (#1), OR* Portland (#2), OR 		_ ^ / \

• > ' \ ; " I 		 I >

Cadmium (PM10)

ng/m3

21

0.170

0.097

-43.0%

* »•* l | - Underbill.Vt

/l_a Grande (#1), OR*-' '"•••JL. •	_ _ 	 j ,,l M/ i ' \ f

} /. a V«?i-7S»" 		I s ') H or icon.' Wit' \ \ "-Roxbury. MA

j... ¦ La Grande (#2), OR i f c-/ . * ] Rochester, NY \ I ...-S
) / ; I | May ville.Wr >f, \~ V

/ i ! I 	 -->.#/ \ Detroit; Ml 		 f

- — —		 ; I	 i 	 J \ j X. Providence, Rl

f / Bountiful'UT | X — \ ^f- .Bronx (#1), NY"

\ 1 ™ 		 . \ Chicago, IL ¦ ; _ j \ S

_ X \ ' . 1, , Washington^D.C. "w
SanJoBB.CA j [	 ^

, Grand Junction. CO V St Louis MO Grayson Lake. KY J ' Bronit (#2), NV"

\ \ 		_ ' 1 v. U-.--.'1" . ,-.v * Richmond. -VA

S \ _ : i . \ i i*/ '

. . . \ ' v • - — -1 _ 	 	 Vs Hazard, KY*--^-""?" / j

Los Angeles, CA \J ; j_	 |	 _ J _ r - "[¦/

- Rubidoux, CA i / 	£'	y-""" /

• X: / >' ' 1 /	T \Chesterf ield, SC

NATTS Sites phoenix.AZ / ; —J / 1 	 j. /

; i Karnack, TX ) South DeKalb, GA y
~ Rural \		j 		| J , > /

O Urban X \ t ; 	\	,r(

NATTS - Year Established Houston, ri ^\

| 2003 "^T.mp,.FL

¦	2004 \ Pinellas County, FL, 'i

1 "> ./ 'i. 1

¦	2007 1 >

"ft

¦	2008
| | 2009

2010
2016

?ni7 * The Hazare|. Mayville, Wl, La Grande <#1), OR, Portland (#1), OR, sites were relocated in 2008, 2009, 2016, and 2017, respectively.
"The Bronx (#1), NY site temporarily moved to the Bronx (#2), NY site from mid-2010 to mid-2012.

Carbon Tetrachloride

Hg/m3

15

0.59

0.56

-4.7%

Chloroform

Hg/m3

20

0.256

0.255

-0.4%

Chromium VI

ng/m

18

0.029

0.026

-7.7%

Formaldehyde

Hg/m3

19

2.77

2.68

-3.3%

Lead (PM10)

ng/m

21

3.08

2.81

-8.9%

Manganese (PM10)

ng/m3

20

8.06

7.93

-1.6%

Naphthalene

ng/m3

20

66.70

51.08

-23.4%

Nickel (PM10)

ng/m3

19

1.28

1.05

-18.0%

T etracliloroethylene

ng/m3

19

0.149

0.174

17.2%

T ricliloroethylene

ng/m3

19

0.020

0.022

10.7%

Vinyl Cliloride

ng/m3

17

0.0051

0.0048

-5.5%





Page 1 of 25


-------
Site Information

NATTS Monitoring Site Report: Rubidoux, CA

Figure 2. NATTS Site Location

NATTS Site Type	Urban

AQS Site Code

06-085-8001

NATTS Operating Agency

South Coast AQMD

Longitude

-117.41601

AQS Land Use

Residential

AQS Location Setting

Suburban

10-Mile Population

2.292.507

Region

County

Riverside

Latitude

33.99958

Pollutant Datasets Evaluation: Suitable for Trends (Y=yes; Y(T

=yes, and usee

Final Pollutant Name

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

Acetaldehyde

--

~

--

--

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Na

Arsenic (PM10)

~

~

-

~

Y

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Benzene

--

~

..

~

Y

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Benzo(a)pyrene

~

—

~

—

—

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Beryllium (PM]0)

~

--

--

~

Y

Y

Nb

Nb

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Butadiene, 1,3-

—

~

~

--

Y

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Cadmium (PM10)

~

~

~

~

Y

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Carbon tetrachloride

--

~

-

~

Nb

Nb

Nb

Y

Y

Y

Y

Y

Y

Nc

Y

Y

Chloroform

~

—

~

~

Y

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Chromium VI

~

—

..

~

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

..

~

..

~

Formaldehyde

~

~

-

--

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Na

Lead (PM10)

~

~

--

~

Y

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Manganese (PM10)

--

~

~

~

Nb

Nb

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Naphthalene

—

—

..

~

~

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Nickel (PM10)

~

~

--

~

Y

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

T etrachloroethylene

~

~

~

--

Y

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Trichloroethylene

~

—

~

~

Y

Y

Y

Y

Y

Y

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Y(T)

Vinyl chloride

--

~

~

~

Nb

Nb

Nb

Nb

Y

Y

Y

Na

Y

Na

Y

Y

for DQO Trends; N=No; "=not rated

a: Completeness was less than 75% based on l-in-6 day sampling
h: Reported MDL to NATTS Target Ratio greater than 2.0
e: Bias % Difference was outside ± 35%.

Page 2 of 25


-------
Table 3. NATTS Network Assessment Data (2003-2018) - National Distribution Statistics By Type3

Analyte

Units

Site Type

# Data
Records

%

Detections

Arithmetic
Meanb

Percentile Value0

5th

10th

25th

50th

75th

90th

95th

Acetaldehyde

ng/m3

Urban

15,704

100%

1.77 ± 0.02

0.50

0.66

0.97

1.45

2.19

3.24

4.04

ng/m3

Rural

4,930

100%

1.20 ± 0.04

0.36

0.46

0.65

0.93

1.38

2.02

2.76

ng/m3

All Sites

20,634

100%

1.63 ± 0.02

0.44

0.58

0.86

1.31

2.00

3.02

3.86

Arsenic (PM10)

ng/m3

Urban

14,968

97%

0.89 ± 0.04

0.10

0.19

0.34

0.58

0.99

1.70

2.41

ng/m3

Rural

4,622

96%

0.49 ± 0.02

0.04

0.08

0.17

0.35

0.59

0.94

1.28

ng/m3

All Sites

19,590

97%

0.79 ± 0.03

0.06

0.14

0.29

0.52

0.89

1.54

2.19

Benzene

Hg/m3

Urban

15,984

99%

0.86 ± 0.01

0.25

0.30

0.43

0.66

1.05

1.64

2.21

Hg/m3

Rural

2,494

95%

0.43 ± 0.02

0.04

0.13

0.21

0.33

0.52

0.78

1.01

Hg/m3

All Sites

18,478

99%

0.81 ± 0.01

0.19

0.26

0.39

0.61

0.98

1.55

2.09

Benzo(a)pyrene

ng/m3

Urban

12,336

70%

0.096 ± 0.004

ND

ND

ND

0.04

0.11

0.24

0.37

ng/m3

Rural

3,179

36%

0.067 ± 0.009

ND

ND

ND

ND

0.02

0.13

0.37

ng/m3

All Sites

15,515

63%

0.090 ± 0.004

ND

ND

ND

0.03

0.10

0.23

0.37

Beryllium (PM10)

ng/m3

Urban

15,783

75%

0.051 ± 0.006

ND

ND

0.00003

0.005

0.018

0.050

0.101

ng/m3

Rural

4,687

49%

0.023 ± 0.003

ND

ND

ND

ND

0.005

0.017

0.072

ng/m3

All Sites

20,470

69%

0.045 ± 0.005

ND

ND

ND

0.003

0.012

0.049

0.100

Butadiene, 1,3-

Hg/m3

Urban

15,388

81%

0.092 ± 0.002

ND

ND

0.025

0.058

0.114

0.215

0.302

ng/m3

Rural

2,185

29%

0.012 ± 0.001

ND

ND

ND

ND

0.017

0.046

0.059

ng/m3

All Sites

17,573

75%

0.082 ± 0.002

ND

ND

ND

0.049

0.104

0.199

0.287

Cadmium (PM10)

ng/m3

Urban

16,360

92%

0.21 ± 0.02

ND

0.01

0.05

0.09

0.17

0.42

0.63

ng/m3

Rural

4,684

87%

0.10 ± 0.01

ND

ND

0.03

0.06

0.11

0.20

0.29

ng/m3

All Sites

21,044

91%

0.18 ± 0.01

ND

0.01

0.04

0.08

0.16

0.35

0.56

Carbon Tetrachloride

ng/m3

Urban

14,713

99%

0.569 ± 0.003

0.361

0.433

0.496

0.562

0.651

0.737

0.798

ng/m3

Rural

2,189

92%

0.534 ± 0.016

ND

0.180

0.402

0.537

0.633

0.727

0.798

ng/m3

All Sites

16,902

98%

0.565 ± 0.003

0.304

0.408

0.490

0.559

0.649

0.736

0.798

Chloroform

ng/m3

Urban

16,068

87%

0.265 ± 0.022

ND

ND

0.093

0.132

0.217

0.420

0.668

ng/m3

Rural

3,802

43%

0.052 ± 0.003

ND

ND

ND

ND

0.095

0.144

0.230

ng/m3

All Sites

19,870

79%

0.224 ± 0.018

ND

ND

0.064

0.113

0.196

0.364

0.586

Chromium VI

ng/m3

Urban

8,414

74%

0.036 ± 0.002

ND

ND

ND

0.020

0.042

0.081

0.120

ng/m3

Rural

2,586

41%

0.018 ± 0.004

ND

ND

ND

ND

0.017

0.031

0.051

ng/m3

All Sites

11,000

66%

0.032 ± 0.001

ND

ND

ND

0.016

0.036

0.073

0.114

Page 3 of 25


-------
Table 3. NATTS Network Assessment Data (2003-2018) - National Distribution Statistics By Type3

Analyte

Units

Site Type

# Data
Records

%

Detections

Arithmetic
Meanb

Percentile Value0

5th

10th

25th

50th

75th

90th

95th

Formaldehyde

ng/m3

Urban

16,118

100%

3.11 ± 0.04

0.66

0.99

1.60

2.47

3.84

5.63

7.25

ng/m3

Rural

5,002

100%

2.22 ± 0.05

0.53

0.68

1.06

1.69

2.74

4.19

5.45

ng/m3

All Sites

21,120

100%

2.90 ± 0.04

0.61

0.86

1.43

2.29

3.59

5.38

6.96

Lead (PM10)

ng/m3

Urban

16,366

100%

4.21 ± 0.13

0.72

0.98

1.55

2.64

4.56

8.35

11.90

ng/m3

Rural

4,680

99%

2.10 ± 0.16

0.37

0.50

0.84

1.41

2.37

3.91

5.36

ng/m3

All Sites

21,046

99%

3.74 ± 0.11

0.55

0.80

1.31

2.31

4.04

7.41

10.56

Manganese (PM10)

ng/m3

Urban

16,141

100%

9.80 ± 0.32

1.09

1.51

2.52

4.92

10.21

20.10

30.08

ng/m3

Rural

4,627

99%

3.96 ± 0.14

0.46

0.73

1.36

2.57

4.75

8.54

12.13

ng/m3

All Sites

20,768

100%

8.50 ± 0.25

0.85

1.23

2.15

4.18

8.89

17.98

26.70

Naphthalene

ng/m3

Urban

12,332

100%

74.63 ± 1.14

15.62

21.27

33.55

55.89

94.64

150.05

196.16

ng/m3

Rural

3,301

100%

24.47 ± 1.38

3.74

4.73

7.74

13.86

26.25

50.88

79.17

ng/m3

All Sites

15,633

100%

64.04 ± 1.00

6.58

10.92

23.37

45.59

83.31

137.54

181.75

Nickel (PM10)

ng/m3

Urban

16,125

97%

1.85 ± 0.05

0.25

0.41

0.67

1.11

2.00

3.52

5.27

ng/m3

Rural

4,623

85%

0.65 ± 0.08

ND

ND

0.10

0.28

0.64

1.15

1.89

ng/m3

All Sites

20,748

94%

1.58 ± 0.04

ND

0.15

0.47

0.92

1.73

3.14

4.74

T etrachloroethylene

Hg/m3

Urban

15,612

86%

0.25 ± 0.01

ND

ND

0.06

0.13

0.25

0.48

0.74

Hg/m3

Rural

2,272

36%

0.09 ± 0.04

ND

ND

ND

ND

0.04

0.08

0.16

Hg/m3

All Sites

17,884

79%

0.23 ± 0.01

ND

ND

0.04

0.11

0.22

0.44

0.70

T richloroethylene

Hg/m3

Urban

15,843

41%

0.040 ± 0.002

ND

ND

ND

ND

0.051

0.107

0.164

ng/m3

Rural

3,388

13%

0.021 ± 0.003

ND

ND

ND

ND

ND

0.017

0.250

ng/m3

All Sites

19,231

36%

0.037 ± 0.002

ND

ND

ND

ND

0.041

0.105

0.167

Vinyl Chloride

ng/m3

Urban

14,778

19%

0.0044 ± 0.0003

ND

ND

ND

ND

ND

0.0137

0.0257

ng/m3

Rural

2,444

8%

0.0040 ± 0.0009

ND

ND

ND

ND

ND

ND

0.0156

ng/m3

All Sites

17,222

17%

0.0043 ± 0.0003

ND

ND

ND

ND

ND

0.0126

0.0254

3 Statistics presented are from pollutant datasets which were suitable for trends.

b The arithmetic mean is the average of all samples results which include actual measured values. If no chemical was registered, then a value of zero is

used when calculating the mean.
c ND: No results of this chemical were registered by the laboratory analytical equipment.

Page 4 of 25


-------
Table 4. Summary Statistics for Rubidoux, CA

Analyte

Units

# Data
Records

%

Detection

Arithmetic Mean3

Percentile Va

b

ue

5th

10th

25th

50th

75th

90th

95th

Acetaldehyde

(ig/m3

686

100%

2.03 ± 0.09

0.55

0.75

1.03

1.74

2.70

3.69

4.42

Arsenic (PM10)

ng/m3

694

98%

1.19 ± 0.57

0.12

0.20

0.35

0.51

0.75

1.29

2.60

Benzene

(ig/m3

687

100%

0.90 ± 0.04

0.28

0.35

0.50

0.76

1.16

1.61

1.99

Benzo(a)pyrene

ng/m3

685

62%

0.06 ± 0.01

ND

ND

ND

0.02

0.06

0.15

0.23

Beryllium (PM10)

ng/m3

694

82%

0.33 ± 0.09

ND

ND

0.006

0.02

0.03

0.10

2.50

Butadiene, 1,3-

l-tg/m3

687

81%

0.10 ± 0.01

ND

ND

0.02

0.06

0.14

0.24

0.32

Cadmium (PM10)

ng/m3

694

87%

0.12 ± 0.01

ND

ND

0.05

0.08

0.11

0.21

0.32

Carbon Tetrachloride

l-tg/m3

679

99%

0.49 ± 0.01

0.37

0.39

0.44

0.49

0.54

0.58

0.63

Chloroform

l-tg/m3

686

99%

0.165 ± 0.005

0.049

0.096

0.101

0.149

0.197

0.247

0.287

Chromium VI

ng/m3

610

100%

0.09 ± 0.01

0.01

0.02

0.03

0.05

0.08

0.19

0.39

Formaldehyde

l-tg/m3

686

100%

3.77 ± 0.16

1.06

1.36

2.12

3.59

5.00

6.33

7.40

Lead (PM10)

ng/m3

694

100%

4.70 ± 0.34

0.01

1.04

2.36

3.81

5.90

8.95

10.17

Manganese (PM10)

ng/m3

694

99%

17.12 ± 0.96

0.50

2.18

8.33

15.55

22.71

32.10

40.65

Naphthalene

ng/m3

685

100%

71.89 ± 4.23

16.02

21.95

33.68

57.90

93.02

143.99

178.67

Nickel (PM10)

ng/m3

692

100%

2.62 ± 0.21

0.50

0.60

1.09

1.86

2.87

6.00

8.82

T etrachloroethylene

l-tg/m3

685

84%

0.124 ± 0.008

ND

ND

0.066

0.130

0.194

0.263

0.321

T richloroethylene

l-tg/m3

685

27%

0.018 ± 0.003

ND

ND

ND

ND

0.052

0.054

0.055

Vinyl Chloride

l-tg/m3

629

4%

0.0011 ± 0.0004

ND

ND

ND

ND

ND

ND

ND

3 :The arithmetic mean is the average of all samples results which included actual measured values. If no chemical was registered, then a value of zero is used.
bND: No results of this chemical were registered by the laboratory analytical equipment.

Table 5. Analytical Labs Supporting this Site

Pollutant Group

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

VOCs

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

Carbonyls

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

PM10 Metals

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

SCAQMD

Chromium VI

CARB

CARB

CARB

CARB

CARB

CARB

CARB

CARB

-

-

-

—

PAHs

ERG

ERG

ERG

ERG

ERG

ERG

ERG

ERG

ERG

ERG

ERG

ERG

Not Applicable

SCAQMD: South Coast Air Quality Management District	ERG: Eastern Research Group, Inc.

CARB: California Air Resources Board

Page 5 of 25


-------
Figure 3. Rubidoux, CA Annual Average Concentrations

£
zL

Rubidoux, CA
Annual Averages:
Acetaldehyde

4.00

, 3.20

2.40

C

o

is 1.60
c

 t o

It 1



I t
i i







2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

Rubidoux, CA
Annual Averages:
Benzene

2.0

^ 16
3 1.2

o

C3

£ 0.8

g
§

U 0.4

0.0

T





*"F

T

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

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Rubidoux, CA
Annual Averages:
Arsenic (PM10)

16.0

f 12'°

U)

3,

d

.2 8.0

03

H
C
o
o

O 4.0

u

0.0

*~*~~~~~~~~

	1	1	1	1	1	1	1	1	1	1	1	

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

Year

Rubidoux, CA
Annual Averages:
Benzo(a)pyrene

0.20

^ 016

"s

"Bl)

3 012

c
o

g 0.08

s

J 0.04

0.00

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

Page 6 of 25


-------
4.00

^ 3.20

"a

3 2.40
§

1.60

C

CJ

o
S

o
U

0.80

0.00

Figure 3. Rubidoux, CA Annual Average Concentrations

Rubidoux, CA
Annual Averages:
Beryllium (PM10)



2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

0.25

0.20

~3t>

; 0.15

e
o

c3

0.10

c

o
G

(3 0.05

0.00

Rubidoux, CA
Annual Averages:
1,3-Butadiene



2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

0.50

.0.40

S

~Bb
a

w(
§

'0.30

0.20

0.10

0.00

I

Rubidoux, CA
Annual Averages:
Cadmium (PM10)

1	*

i f



2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

0.80

.0.64

E

~Sb
a.

0.48

e

o

: 0.32

c

o

U 0.16

0.00

Rubidoux, CA
Annual Averages:
Carbon Tetrachloride

* ~ i § * i

I

	1	1	T	1	1	1	1	1	1	1	1	

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

Page 7 of 25


-------
Figure 3. Rubidoux, CA Annual Average Concentrations

0.30

0.24

s

0.18

e
o

b 0.12

s

CJ

g

U 0.06

0.00

Rubidoux, CA
Annual Averages:
Chloroform

i i rr^

f

i

i



2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

10.0

8.0

ill

c

o

6.0

U 4.0

C


-------
Figure 3. Rubidoux, CA Annual Average Concentrations

Rubidoux, CA
Annual Averages:
Manganese (PM10)

30.0

24.0

£
e

c

o

a
o
o
c
o
U

18.0

12.0

6.0

0.0

T

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

10.0

Rubidoux, CA
Annual Averages:
Nickel (PM10)

8.0

e

"56

e
o

c


-------
Figure 3. Rubidoux, CA Annual Average Concentrations

0.40

0.32

a

-0.24

c

o

c3

j3 0.16

5

o

c

U 0.08

0.00

Rubidoux, CA
Annual Averages:
Trichloroethylene

~i	1—

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

0.015

^0.012

CI _

s

^i)

30.009

a

o

2 0.006

8

o
c

U 0.003

0.000

Rubidoux, CA
Annual Averages:
Vinyl Chloride

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

Does not meet MQO

Page 10 of 25


-------
Figure 4. Rubidoux, CA - 3-Year Rolling Average Concentrations

Rubidoux, CA
3-Year Rolling Averages:
Acetaldehyde

3.5

2.8

so
c

c

o

c:

X5% "*0Jf 'J^0;2 ^0/3

Years

1.0

0.8

Rubidoux, CA
3-Year Rolling Averages:
Arsenic (PM10)

so
c

G

O

C3

0.6

T



g 0.4

u
C
o
O

0.2

*

t



¦f

0.0















*0.

too









'/j

*0.





^0,

Years

Page 11 of 25


-------
Figure 4. Rubidoux, CA - 3-Year Rolling Average Concentrations

Rubidoux, CA
3-Year Rolling Averages:
Benzene

rr

E

~Sb

0.9

I

* * i

c
.o

C3

S 0.6

o
C

o
U

0.3

* t t *

0.0



^ ^ ^ ^ ^ ,,,
2°0g	"°/0	^°/,	Z? ^°/j	^0/
O

c

o
U

0.09

0.06

0.03

4—i

T

t

0.00

<^o	^	% % <>0/	<>%

•"	2o, 2o, 2oj -?o,^ -?o.

?00o ~2°,

'Jo

^	^/J>

Years





''S

Page 12 of 25


-------
Figure 4. Rubidoux, CA - 3-Year Rolling Average Concentrations

Rubidoux, CA
3-Year Rolling Averages:
Beryllium (PM10)

a

~Sb

c

o

a

u
o
S3
O

0.250

0.200

0.150

0.100

0.050

0.000







































<

~











































~

1——



~

^ ~ ~ ~ ~ ~



^0,



^0,


o
ci

U 0.03

0.00







Years















Jo,

'is

*0/

Is

*o.

•?o.

'Iff.

'I?

*o.

'I,?

Page 13 of 25


-------
Figure 4. Rubidoux, CA - 3-Year Rolling Average Concentrations

0.15

Rubidoux, CA
3-Year Rolling Averages:
Cadmium (PMI0)

so
c

G

O


-------
Figure 4. Rubidoux, CA - 3-Year Rolling Average Concentrations

uo

=L

e

o

0.25

0.20

0.15

0.10

Rubidoux, CA
3-Year Rolling Averages:
Chloroform

* * i i *



c



*4

V
-------
Figure 4. Rubidoux, CA - 3-Year Rolling Average Concentrations

Rubidoux, CA
3-Year Rolling Averages:
Hexavalent Chromium

0.30

0.24

so
c

c
o

C3

5-

.

'Jo.

*s

5.0

Rubidoux, CA
3-Year Rolling Averages:
Lead (PM10)

4.0

1-4

bO

& 3-(

c

o

\

c


-------
Figure 4. Rubidoux, CA - 3-Year Rolling Average Concentrations

Rubidoux, CA
3-Year Rolling Averages:
Manganese (PM,0)

25.0

SO

c

c
o

c

% *0,

^°09 °/0 °/y "°/j	2°/^ ~-°/s °Js 0,7 0/S

Years

125.0

Rubidoux, CA
3-Year Rolling Averages:
Naphthalene

100.0

FTX1

CD

75.0

a

£ 50.0

a>

o

c

o

O

25.0



FT

i	£

0.0

2°0 2o0s

'-?o.

u9^

*o.

''o





-'o,

V, /-J>.

-0/

'<>

<(9/, 
-------
Figure 4. Rubidoux, CA - 3-Year Rolling Average Concentrations

Rubidoux, CA
3-Year Rolling Averages:
Nickel (PM,0)

so
e

e

o

G

0>
o
c
o
CJ

5.0

4.0

3.0

2.0

1.0

0.0

I

I

?0,







We



-'% , ^// ,
^ %

*o.



 
-------
Figure 4. Rubidoux, CA - 3-Year Rolling Average Concentrations

Rubidoux, CA
3-Year Rolling Averages:
Trichloroethylene

0.030

0.024

Sfi

3 0.018

C
O

03

a

o

CJ

C

o
U

0.012

0.006

0.000

2°0>	*Oop

^ ^

*0]

*0,, ^	^



u'3
Years

u's





Rubidoux, CA
3-Year Rolling Averages:
Vinyl Chloride

S

~Sb

c

a>
o
C

o
U

0.005 -

0.004

0.003

0.002

0.001

0.000

2°0 2o0

Oq	*0Jf

^ ^

*o.



'S

'% ~JoO

Years

Does not meet MQO or wasn't able to collect enough samples

Page 19 of 25


-------
Table 6. NATTS Network Assessment: MQO#l - Completeness Percentage at Rubidoux, CA

Pollutant Group

Year

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

Carbonyl

Acetaldehyde

92

98

100

97

98

98

98

103

95

102

97

49

Carbonyl

Formaldehyde

92

98

100

97

98

98

98

103

95

102

97

49

Chromium VI

Chromium VI

94

90

100

98

98

98

97

98

--

--

--

--

PAH

Benzo(a)pyrene

--

97

100

98

100

100

95

97

98

97

90

100

PAH

Naphthalene

~

97

100

98

100

100

95

97

98

97

90

100

PM10 Metals

Arsenic (PM10)

100

90

90

102

89

107

98

95

90

93

95

100

PM10 Metals

Beryllium (PM10)

100

90

90

102

89

107

98

95

90

93

95

100

PM10 Metals

Cadmium (PM10)

100

90

90

102

89

107

98

95

90

93

95

100

PM10 Metals

Lead (PM10)

100

90

90

102

89

107

98

95

90

93

95

100

PM10 Metals

Manganese (PM10)

100

90

90

102

89

107

98

95

90

93

95

100

PM10 Metals

Nickel (PM10)

100

90

90

102

89

107

95

95

90

93

95

100

voc

Benzene

93

97

102

95

93

102

93

87

97

75

95

102

voc

Butadiene, 1,3-

93

97

102

95

93

102

93

87

97

75

95

102

voc

Carbon tetrachloride

98

93

97

93

93

102

93

87

97

77

95

102

voc

Chloroform

93

97

102

95

93

102

93

87

93

77

95

102

voc

T etrachloroethylene

93

97

102

95

93

102

93

87

93

77

95

100

voc

T richloroethylene

93

97

102

95

93

102

93

87

93

75

95

102

voc

Vinyl chloride

98

93

97

87

89

95

82

74

87

52

93

98

A-rated: >85%

B-rated: Between 75% to 85%
Does not meet: <75%

No data available

Page 20 of 25


-------
Table 7. NATTS Network Assessment: MQO#2 - Reported Method Detection Limits (MDLs) at Rubidoux, CA

Pollutant
Group

Pollutant Name

Target
MDL

Units

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

Carbonyl

Acetaldehyde

0.45

pg/m3

0.40

0.40

0.40

0.40

0.02

0.02

0.02

0.02

0.04

0.08

0.02

0.08

Carbonyl

Formaldehyde

0.98/0.08a

Ug/m3

0.13

0.13

0.13

0.13

0.03

0.03

0.31

0.31

0.25

0.36

0.25

0.36

Chromium VI

Chromium VI

0.08

ng/m"

0.25

0.25

0.25

0.25

0.25

0.08

0.08

0.05

--

--

--

--

PAH

Benzo(a)pyrene

0.91

ng/m"

0.07

0.06

0.04

0.04

0.04

0.05

0.06

0.03

0.11

0.06

0.02

0.01

PAH

Naphthalene

29.00

ng/m"

0.00

0.013

0.005

0.007

0.004

0.004

0.007

0.012

0.005

0.022

0.060

0.058

PM10 Metals

Arsenic (PM10)

0.23

ng/m"

1.26

1.25

1.51

1.52

0.04

0.09

0.04

0.04

0.13

0.08

0.08

0.12

PM10 Metals

Beryllium (PM10)

0.42

ng/m"

1.15

1.14

2.55

2.56

0.02

0.05

0.02

0.02

0.069

0.046

0.024

0.023

PM10 Metals

Cadmium (PM10)

0.56

ng/m"

0.19

0.24

0.19

0.19

0.03

0.07

0.03

0.03

0.035

0.034

0.034

0.017

PM10 Metals

Lead (PM10)

15.0

ng/m"

0.011

0.011

0.017

0.017

0.001

0.001

0.001

0.001

0.009

0.009

0.003

0.003

PM10 Metals

Manganese (PM10)

5.0

ng/m"

2.69

2.69

0.16

0.159

0.00

0.008

0.004

0.004

0.03

0.03

0.05

0.04

PM10 Metals

Nickel (PM10)

2.1

ng/m"

0.10

0.10

0.16

0.157

0.00

0.09

0.05

0.05

0.54

0.22

0.16

0.16

voc

Benzene

0.13

l-tg/m"

1.23

1.23

1.23

1.23

0.64

0.64

0.64

0.64

0.98

0.98

0.49

0.25

voc

Butadiene, 1,3-

0.10

l-tg/m"

0.88

0.88

0.88

0.88

0.62

0.62

0.62

0.58

0.58

0.66

0.44

0.44

voc

Carbon tetrachloride

0.17

l-tg/m"

3.70

3.70

3.70

0.74

0.74

0.74

0.74

0.74

0.74

0.74

0.37

0.37

voc

Chloroform

0.50

l-tg/m"

0.20

0.20

0.20

0.20

0.20

0.20

0.20

0.20

0.20

0.20

0.20

0.10

voc

Tetrachloroethylene

0.17

l-tg/m"

0.40

0.40

0.40

0.40

0.40

0.40

0.40

0.40

0.40

0.40

0.40

0.40

voc

T richloroethylene

0.5/0.2a

l-tg/m"

0.21

0.21

0.21

0.21

0.21

0.21

0.54

0.54

0.54

0.54

0.54

0.27

voc

Vinyl chloride

0.11

l-tg/m"

2.32

2.32

2.32

2.32

1.19

1.19

1.19

0.79

0.79

0.70

0.93

0.23

A-rated: MDL to Target MDL ratio < 1
B-rated" MDL to Target MDL ratio between 1 and 2
Does Not Meet MDL to Target MDL ratio>2
No data available

a: For the 2012 sampling year, the Target MDL for this pollutant was reduced.

Page 21 of 25


-------
Table 8. NATTS Network Assessment: MQO#3 - Bias Percent Difference at Rubidoux, CA

Pollutant Group

Pollutant Name

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

Carbonyls

Acetaldehyde

a

a

-14.2

0.8

-2.8

b

41.4

-2.3

b

-2.9

4.5

-5.3

Carbonyls

Formaldehyde

a

a

-15.7

-3.5

-2.1

b

42.6

0.7

b

-12.5

0.9

6.2

Chromium VI

Chromium VI

b

b

b

c

b

18.0

-11.8

-8.9

--

--

--

--

PAH

Benzo(a)pyrene

b

b

-1.7

-2.3

-2.1

25.2

-5.7

-16.3

-14.2

-10.5

-22.4

-14.8

PAH

Naphthalene

b

b

-7.7

-17.1

-13.9

21.4

25.5

0.7

-11.4

-9.5

-11.6

-20.7

PM10 Metals

Arsenic (PM10)

a

a

-26.0

-11.6

-15.1

-1.6

-16.0

-9.4

b

-1.6

-12.0

-7.2

PM10 Metals

Beryllium (PM10)

a

a

-35.6

-18.0

-18.9

-1.9

-9.2

d

b

-5.5

-14.1

-9.4

PM10 Metals

Cadmium (PM10)

a

a

-27.9

-9.8

-13.8

-1.1

227.0

d

b

0.8

-15.4

-15.4

PM10 Metals

Lead (PM10)

a

a

-32.2

-7.7

-10.4

8.7

0.3

7.3

b

2.3

-11.6

-8.3

PM10 Metals

Manganese (PM10)

a

a

-40.2

-13.7

-14.5

8.5

-10.3

8.4

b

5.5

-5.5

0.6

PM10 Metals

Nickel (PM10)

a

a

-42.8

-11.2

-11.1

-8.1

-13.1

c

b

20.5

9.9

10.5

voc

Benzene

a

a

-17.6

e

9.8

b

1.9

5.7

OO
00

1

10.5

-17.9

-12.0

voc

Butadiene, 1,3-

a

a

-30.6

e

1.1

b

15.2

-5.3

-25.5

-5.6

-14.4

-13.6

voc

Carbon tetrachloride

a

a

-25.9

e

-5.1

b

3.2

-1.7

14.8

51.2

-4.6

-8.3

voc

Chloroform

a

a

-43.8

e

-12.4

b

14.0

-4.8

-10.5

14.9

-6.0

-8.6

voc

T etrachloroethylene

a

a

-19.5

e

9.4

b

-4.0

3.6

-25.6

-8.7

10.8

-4.7

voc

T richloroethylene

a

a

-32.8

e

-11.7

b

-3.7

-6.1

-30.6

-14.0

-28.9

-26.0

voc

Vinyl chloride

a

a

-26.8

e

-3.9

b

2.3

6.7

-5.1

1.7

-8.5

-7.5



A-rated:±25%

B-rated: Between 25% to 35% or between -25% to -35%

Does not meet:>35% or <35%

No data available

a: Due to lab constraints, EPA granted a 2-year waiver from participating the Proficiency Test program until 2009.
b: No Proficiency Test samples were sent for this pollutant and year.

c: Although a Proficiency Test sample was sent to the lab supporting this site and year, the results were nullified by
d: The Proficiency Test sample for this pollutant was 0; the site reported a concentration as "
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Table 9. NATTS Network Assessment: MQO#4 - Overall Method Precision %CV at Rubidoux, CA

Pollutant Group

Pollutant Name

Overall Methot

precision % CV

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

Carbonyls

Acetaldehyde

39.3

27.1

26.5

21.2

34.4

51.4

29.2

43.3

28.7

16.3

14.2

12.8

Carbonyls

Formaldehyde

35.0

22.2

23.3

29.6

18.3

41.4

28.5

32.2

34.5

18.5

42.1

36.4

Chromium VI

Chromium VI

32.1

20.8

42.6

28.6

27.1

20.6

33.1

34.0

--

--

--

--

PAH

Benzo(a)pyrene

18.1

7.6

27.0

32.8

a

a

1.0

a

a

17.4

13.8

1.8

PAH

Naphthalene

40.7

41.8

17.2

10.2

15.5

14.0

10.3

12.8

21.8

9.0

4.3

4.8

PM10 Metals

Arsenic (PM10)

42.5

7.4

27.9

6.4

12.6

11.5

12.1

11.5

6.9

4.5

4.4

5.5

PM10 Metals

Beryllium (PM10)

11.7

58.2

a

a

a

27.1

16.3

26.4

0

9.1

29.3

8.9

PM10 Metals

Cadmium (PM10)

0.0

20.2

0.0

28.3

42.5

9.9

7.4

11.8

5.8

2.2

11.9

4.5

PM10 Metals

Lead (PM10)

22.0

7.0

7.3

4.9

11.4

11.3

6.4

3.8

4.4

5.3

7.8

4.5

PM10 Metals

Manganese (PM10)

a

7.8

7.5

22.2

13.2

12.6

6.6

4.2

4.1

2.0

6.6

3.7

PM10 Metals

Nickel (PM10)

13.0

9.0

19.7

29.8

47.9

12.4

16.3

9.1

5.5

13.4

5.9

4.9

voc

Benzene

16.3

8.5

17.9

6.3

16.0

14.2

10.8

15.2

29.2

24.9

26.1

25.4

voc

Butadiene, 1,3-

33.4

5.9

17.8

23.4

50.2

25.8

16.2

24.1

22.6

37.3

19.5

19.4

voc

Carbon tetrachloride

a

a

a

a

15.3

9.1

10.4

16.1

17.3

20.4

15.2

11.4

voc

Chloroform

a

a

a

a

1.8

OO
*00

8.9

4.0

30.2

25.0

14.1

16.9

voc

T etrachloroethylene

12.9

62.9

a

a

a

a

a

0

a

12.9

35.6

36.5

voc

T richloroethylene

a

a

a

a

a

a

a

a

a

a

a

a

voc

Vinyl chloride

a

a

a

a

a

a

a

a

a

a

a

a

A-rated:< 15% CV

B-rated: Between 15%CV to25% CV

Does Not Meet: >25% CV or did not report Precision (required in the NATTS Workplan Template since 2012)
No data available

a: Although both primary and secondary data were reported, both sets of values were less than the MDL. Thus no %CV was calculated.

Page 23 of 25


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Table 10. NATTS Network Assessment: MQO#4 - Analytical Precision %CV at Rubidoux, CA

Pollutant Group

Pollutant Name

Analytica

Method precision % CV

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

Carbonyls

Acetaldehyde

--

--

--

1.5

1.0

1.5

2.2

1.1

1.7

2.5

a

a

Carbonyls

Formaldehyde

--

--

--

0.1

1.8

3.5

1.2

0.6

0.5

0.6

a

a

Chromium VI

Chromium VI

2.5

3.7

3.8

4.6

--

a

a

b

--

—

--

—

PAH

Benzo(a)pyrene

4.7

3.7

3.3

1.6

c

6.3

0.7

0.5

c

2.5

2.0

1.3

PAH

Naphthalene

11.2

3.4

4.0

4.5

1.4

15.3

5.0

4.0

1.4

5.3

0.9

2.8

PM10 Metals

Arsenic (PM10)

77.9

5.0

--

0

8.0

13.9

a

a

6.5

3.1

4.2

3.3

PM10 Metals

Beryllium (PM10)

59.7

c

c

c

c

11.1

a

a

0

0

47.1

20.2

PM10 Metals

Cadmium (PM10)

--

--

--

c

11.7

11.0

a

a

0

6.7

0

4.0

PM10 Metals

Lead (PM10)

53.3

5.4

5.2

0

7.2

13.7

a

a

3.4

2.1

1.2

1.7

PM10 Metals

Manganese (PM10)

0.5

0.8

3.4

0

0

15.3

a

a

4.2

2.6

0.3

0.5

PM10 Metals

Nickel (PM10)

1.7

4.2

1.5

0

3.1

15.0

a

a

5.0

14.5

2.3

6.9

voc

Benzene

8.4

3.7

6.7

2.7

4.8

23.5

7.3

4.9

5.4

a

3.2

4.8

voc

Butadiene, 1,3-

c

8.3

c

0

20.2

25.8

19.5

16.4

24.8

a

10.9

17.4

voc

Carbon tetrachloride

--

c

11.8

c

7.9

5.3

11.0

6.8

5.0

a

4.9

6.0

voc

Chloroform

c

c

c

c

0

6.7

0

6.3

9.1

a

7.1

4.1

voc

T etrachloroethylene

c

c

c

c

c

c

c

0

c

a

20.0

8.4

voc

T richloroethylene

c

c

c

c

c

c

c

c

c

a

c

0

voc

Vinyl chloride

"

c

c

c

c

c

c

c

c

a

c

c

A-rated:< 15% CV

B-rated: Between 15%CV to25% CV

Does Not Meet: >25% CV or did not report Precision (required in the NATTS Workplan Template since 2012)
No data available

a: Per the NATTS Workplan template, analytical replicates were required to be reported to AQS for this sampling year
b: Although this site sampled for chromium 6+ in 2014, it was not required, and thus analytical precision data was also not required.
c: The primary and/or replicate value were less than the MDL, so no calculation could be made.

Page 24 of 25


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Appendix A: Equipment Inventory

Pollutant Type

Year(s)

Manufacturer/Model, Extraction Type, and Year

Sampling Equipment

Carbonyls

2007-2017

RM Environmental Systems 924 Toxic Air Sampler (Year Deployed: 2004)

2018

ATEC 8000 (Year Deployed 2018)

Chromium VI

2007-2010

RM Environmental Systems 924 Toxic Air Sampler (Year Deployed: 2006)

2011-2014

RM Environmental Systems 924 Toxic Air Sampler (Year Deployed: 2007)

PAHs

2007-2015

Thermo Andersen GPS-1 PUF Sampler (Year Deployed: 2004)

2016-2018

TischPuf+ (Year Deployed: 2016)

PM10 Metals

2007-2017

Thermo-Andersen SSI PM10 Hi-VOL; Tisch TE-10557 sampler (Year Deployed: 2007)

2018

Tisch SSI+ (Year Deployed: 2018)

VOCs

2007-2018

Xontech 910A Canister Sampler (Year Deployed: 2004)

Analytical Equipment

Carbonyls

2007-2018

Waters Alliance 2690 HPLC/ model 996 PDA (Year Deployed: 1999)

Chromium VI

2007-2014

Dionex modular Ion Chromatography (Year Deployed: 2007)



2007-2007

HP/Agilent 5890/5971 GC/MS (Year Deployed: 1990)

PAHs

2008-2013

HP/Agilent 5890/5971 GC/MS (Year Deployed: 2008)



2014-2018

HP/Agilent 7890B/5975C GC/MS (Year Deployed: 2014)

PM10 Metals

2007-2010

LECO Renaissance TOF-ICP-MS (Year Deployed: 1998)

2011-2018

PE ELAN ICP-MS (Year Deployed: 2010)

VOCs

2007-2018

Agilent 6890/5973 GC/MS (Year Deployed: 2006)

Preconcentrator Equipment

VOCs

2007-2016

Entech 7100A (Year Deployed: 2006)

2017-2018

Entech7200 (Year Deployed: 2017)

Standards Preparation Equipment

VOCs

2007-2017

Entech 4600 (Dynamic Dilution) (Year Deployed: 2004)

2018

Entech 4700 (Pressure Dilution) (Year Deployed: 2018)

Canister Cleaning Equipment

VOCs

2007-2018

Entech 3100A (Hot) (Year Deployed: 2007)

PM10 Extraction Equipment

PM10 Metals

2007-2009

CEMMars5 (Microwave) (Year Deployed: 2002)

2010-2018

CEMMars5 (Microwave) (Year Deployed: 2009)

Chromium VI Extraction Equipment

Chromium VI

2007-2014

Zenith Model G4-80/40 Sonicator (Year Deployed: <2000)

PAHs Extraction Equipment

PAHs

2007-2018 |Dionex -300 (ASE) (Year Deployed: 2004)

Page 25 of 25


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