From:   "Garnett, Nancy" <ngarnett@txi.com>  

To:   Keith Barnett/RTP/USEPA/US@EPA  

Cc:   "Faciane, Leo" <lfaciane@txi.com>  

Date:   07/02/2009 11:14 AM  

Subject:   RE: THC data for Midlothian

  

Dear Keith:  

  

Attached is the requested data.    

  

Please call me if you have any questions.  

  

Nancy Garnett  

972/647‐3414  

  

‐‐‐‐‐Original Message‐‐‐‐‐  

From: Barnett.Keith@epamail.epa.gov  

[mailto:Barnett.Keith@epamail.epa.gov]   

Sent: Tuesday, June 09, 2009 11:11 AM  

To: Garnett, Nancy  

Cc: Faciane, Leo  

Subject: THC data for Midlothian  

  

  

Dear Nancy:  

  

As a follow up to the original information collection request we would  

like to obtain the last two years of total hydrocarbons data for the  

non‐hazardous waste firing cement kiln at your Midlothian plant.  We  

would like to obtain daily averages, dry, corrected to 7 percent oxygen.  

  

Given the unique nature of your installation, (a wet scrubber followed  

by an RTO), we believe these data may be important in determining long  

term THC variability for cement kilns.  

  

  

  

Keith W. Barnett  

USEPA/OAQPS/SPPD/MMG  

Mail Code D243‐02  

Research Triangle Park, NC  27711  

919‐541‐5605  

barnett.keith@epa.gov  

  

  

  

****************************************************  

The information in this email is confidential and may be legally privileged. If you are not an intended recipient, you

should delete this message.  Access to this email by anyone else is unauthorized, and any disclosure, copying,

distribution or action taken or omitted in reliance on it is prohibited and may be unlawful.  

****************************************************  
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

yes 6/1/07 3.6

yes 6/2/07 3.4

yes 6/3/07 3.4

yes 6/4/07 6.7

yes 6/5/07 4.0

yes 6/6/07 7.5

yes 6/7/07 7.5

yes 6/8/07 9.7

yes 6/9/07 2.6

yes 6/10/07 2.4

yes 6/11/07 2.6

yes 6/12/07 3.4

yes 6/13/07 2.7

yes 6/14/07 2.8

yes 6/15/07 2.5

yes 6/16/07 7.6

yes 6/17/07 1.8

yes 6/18/07 1.1

yes 6/19/07 1.4

yes 6/20/07 2.4

yes 6/21/07 2.2

yes 6/22/07 1.9

yes 6/23/07 2.9

yes 6/24/07 4.8

yes 6/25/07 4.1

yes 6/26/07 1.1

yes 6/27/07 2.3

yes 6/28/07 2.2 y

yes 6/29/07 1.1

yes 6/30/07 4.2 3.54

yes 7/1/07 9.9 3.75

yes 7/2/07 5.5 3.82

yes 7/3/07 5.0 3.87

yes 7/4/07 4.7 3.81

yes 7/5/07 4.8 3.83

7/6/07 4.9 3.75

7/7/07 4.9 3.66

7/8/07 5.5 3.52

7/9/07 2.9 3.53

7/10/07 7.2 3.69

7/11/07 5.7 3.79

7/12/07 7.4 3.93

7/13/07 25.6 4.69

7/14/07 22.6 5.35

7/15/07 17.7 5.86

7/16/07 14.9 6.10

7/17/07 7.1 6.28

7/18/07 0.3 6.25

7/19/07 8.4 6.48

7/20/07 9.0 6.70
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

7/21/07 9.7 6.95

7/22/07 13.3 7.33

7/23/07 32.4 8.32

7/24/07 15.0 8.66

7/25/07 16.4 9.07

7/26/07 5.7 9.22

7/27/07 0.0 9.14

7/28/07 6.7 9.29

7/29/07 106.1 12.79

7/30/07 7.0 12.88

7/31/07 5.7 12.74

8/1/07 1.4 12.61

8/2/07 2.4 12.52

8/3/07 4.7 12.52

8/4/07 3.8 12.48

8/5/07 4.0 12.45

8/6/07 4.8 12.45

8/7/07 4.8 12.42

8/8/07 5.4 12.51

8/9/07 5.6 12.46

8/10/07 4.4 12.42

8/11/07 3.0 12.27

8/12/07 2.7 11.50

8/13/07 2.7 10.84

8/14/07 2.1 10.32

8/15/07 1.4 9.87

8/16/07 0.7 9.65

8/17/07 0.5 9.66

8/18/07 3.1 9.49

8/19/07 1.9 9.25

8/20/07 2.3 9.00

8/21/07 2.7 8.65

8/22/07 2.8 7.66

8/23/07 2.8 7.26

8/24/07 3.1 6.81

8/25/07 3.2 6.73

8/26/07 4.7 6.89

8/27/07 3.8 6.79

8/28/07 5.1 3.42

8/29/07 5.7 3.38

8/30/07 5.8 3.38

8/31/07 4.9 3.50

9/1/07 7.2 3.66

9/2/07 7.5 3.75

9/3/07 17.2 4.20

9/4/07 6.7 4.29

9/5/07 4.8 4.29

9/6/07 5.9 4.32

9/7/07 5.8 4.34

9/8/07 5.2 4.32
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

9/9/07 5.8 4.37

9/10/07 6.3 4.48

9/11/07 5.9 4.59

9/12/07 5.3 4.67

9/13/07 5.1 4.77

9/14/07 4.1 4.86

9/15/07 3.8 4.97

9/16/07 5.1 5.12

9/17/07 5.0 5.18

9/18/07 3.0 5.22

9/19/07 3.2 5.25

9/20/07 3.7 5.28

9/21/07 4.4 5.34

9/22/07 4.0 5.38

9/23/07 3.3 5.38

9/24/07 1.4 5.32

9/25/07 2.7 5.26

9/26/07 1.3 5.17

9/27/07 1.2 5.04

9/28/07 3.1 4.96

9/29/07 3.8 4.89

9/30/07 2.2 4.80

10/1/07 4.2 4.71

10/2/07 5.5 4.64

10/3/07 5.6 4.26

10/4/07 4.7 4.19

10/5/07 5.1 4.20

10/6/07 5.5 4.18

10/7/07 6.9 4.22

10/8/07 8.6 4.33

10/9/07 9.7 4.46

10/10/07 6.2 4.46

10/11/07 4.9 4.43

10/12/07 1.9 4.31

10/13/07 2.1 4.21

10/14/07 0.8 4.10

10/15/07 1.4 4.02

10/16/07 3.6 3.97

10/17/07 3.6 3.93

10/18/07 2.0 3.90

10/19/07 1.8 3.85

10/20/07 1.0 3.76

10/21/07 0.8 3.64

10/22/07 0.9 3.54

10/23/07 0.9 3.45

10/24/07 1.1 3.45

10/25/07 1.6 3.41

10/26/07 1.2 3.40

10/27/07 0.0 3.36

10/28/07 0.0 3.26
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

10/29/07 0.1 3.14

10/30/07 2.2 3.14

10/31/07 1.3 3.04

11/1/07 1.5 2.91

11/2/07 10.9 3.08

11/3/07 1.9 2.99

11/4/07 2.6 2.91

11/5/07 3.6 2.84

11/6/07 4.1 2.75

11/7/07 2.1 2.53

11/8/07 1.3 2.25

11/9/07 1.2 2.08

11/10/07 2.3 2.00

11/11/07 1.6 1.99

11/12/07 3.1 2.02

11/13/07 4.7 2.15

11/14/07 6.6 2.32

11/15/07 7.9 2.46

11/16/07 8.0 2.61

11/17/07 6.7 2.76

11/18/07 8.2 2.97

11/19/07 6.9 3.17

11/20/07 4.3 3.29

11/21/07 5.3 3.43

11/22/07 5.1 3.57

11/23/07 5.5 3.72

11/24/07 4.4 3.81

11/25/07 5.1 3.94

11/26/07 8.4 4.22

11/27/07 8.7 4.51

11/28/07 8.9 4.80

11/29/07 10.3 5.07

11/30/07 9.4 5.34

12/1/07 10.0 5.62

12/2/07 9.9 5.59

12/3/07 9.0 5.83

12/4/07 6.9 5.97

12/5/07 8.2 6.13

12/6/07 9.6 6.31

12/7/07 8.9 6.54

12/8/07 8.7 6.78

12/9/07 7.2 6.99

12/10/07 7.2 7.15

12/11/07 5.4 7.28

12/12/07 2.3 7.25

12/13/07 4.9 7.26

12/14/07 6.3 7.25

12/15/07 6.3 7.19

12/16/07 5.9 7.13

12/17/07 5.7 7.09
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

12/18/07 9.0 7.12

12/19/07 9.8 7.22

12/20/07 10.0 7.41

12/21/07 9.1 7.53

12/22/07 8.7 7.65

12/23/07 9.5 7.78

12/24/07 7.1 7.87

12/26/07 0.0 7.70

12/27/07 0.0 7.42

12/28/07 0.0 7.14

12/29/07 0.0 6.84

12/30/07 0.0 6.50

12/31/07 0.0 6.18

1/1/08 0.0 5.85

1/2/08 0.0 5.52

1/3/08 2.5 5.30

1/4/08 9.1 5.38

1/5/08 12.4 5.52

1/6/08 11.9 5.59

1/7/08 12.7 5.72

1/8/08 14.0 5.90

1/9/08 10.1 5.99

1/10/08 8.3 6.03

1/11/08 6.1 6.05

1/12/08 4.6 6.13

1/13/08 0.9 6.00

1/14/08 0.0 5.78

1/15/08 2.2 5.65

1/16/08 3.5 5.57

1/17/08 3.2 5.48

1/18/08 3.8 5.31

1/19/08 4.0 5.11

1/20/08 2.0 4.85

1/21/08 2.0 4.61

1/22/08 2.4 4.40

1/23/08 2.2 4.16

1/24/08 1.7 3.98

1/25/08 0.9 4.01

1/26/08 2.7 4.10

1/27/08 2.4 4.18

1/28/08 3.2 4.28

1/29/08 3.0 4.38

1/30/08 4.2 4.52

1/31/08 1.9 4.59

2/1/08 5.4 4.77

2/2/08 4.9 4.85

2/3/08 4.0 4.68

2/4/08 3.9 4.39

2/5/08 4.1 4.14

2/6/08 3.8 3.84
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

2/7/08 3.9 3.50

2/8/08 3.9 3.29

2/9/08 4.4 3.16

2/10/08 4.4 3.10

2/11/08 4.0 3.08

2/12/08 4.0 3.19

2/13/08 65.0 5.35

2/14/08 32.7 6.37

2/15/08 8.1 6.53

2/16/08 4.6 6.57

2/17/08 7.0 6.68

2/18/08 13.4 7.00

2/19/08 4.1 7.06

2/20/08 3.7 7.12

2/21/08 3.4 7.16

2/22/08 3.5 7.20

2/23/08 3.6 7.26

2/24/08 3.6 7.35

2/25/08 3.4 7.38

2/26/08 3.6 7.42

2/27/08 4.4 7.46

2/28/08 3.6 7.48

2/29/08 3.7 7.46

3/1/08 6.0 7.60

3/2/08 5.5 7.60

3/3/08 4.5 7.59

3/4/08 6.0 7.65

3/5/08 6.5 7.74

3/6/08 6.5 7.82

3/7/08 5.9 7.89

3/8/08 5.4 7.94

3/9/08 5.4 8.00

3/10/08 5.2 8.02

3/11/08 5.6 8.06

3/12/08 5.1 8.10

3/13/08 5.5 8.15

3/14/08 5.6 6.17

3/15/08 6.3 5.29

3/16/08 6.5 5.23

3/17/08 6.1 5.28

3/18/08 20.4 5.73

3/19/08 6.1 5.49

3/20/08 5.6 5.54

3/21/08 5.6 5.60

3/22/08 5.6 5.67

3/23/08 5.2 5.73

3/24/08 5.5 5.79

3/25/08 5.4 5.85

3/26/08 5.9 5.94

3/27/08 6.1 6.02
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

3/28/08 5.3 6.05

3/29/08 2.1 6.00

3/30/08 0.8 5.90

3/31/08 3.5 5.82

4/1/08 62.8 7.73

4/2/08 132.6 12.00

4/3/08 43.2 13.24

4/4/08 64.6 15.18

4/5/08 68.6 17.25

4/6/08 51.9 18.78

4/7/08 52.7 20.35

4/8/08 50.2 21.84

4/9/08 11.0 22.04

4/10/08 3.7 21.98

4/11/08 4.1 21.94

4/12/08 4.0 21.90

4/13/08 3.7 21.83

4/14/08 4.0 21.75

4/15/08 3.7 21.66

4/16/08 3.6 21.58

4/17/08 3.5 21.02

4/18/08 3.2 20.92

4/19/08 4.7 20.89

4/20/08 3.9 20.84

4/21/08 4.2 20.79

4/22/08 2.4 20.70

4/23/08 4.2 20.65

4/24/08 10.8 20.83

4/25/08 3.8 20.76

4/26/08 3.6 20.68

4/27/08 3.5 20.62

4/28/08 3.8 20.67

4/29/08 3.9 20.78

4/30/08 2.9 20.76

5/1/08 2.3 18.74

5/2/08 1.3 14.36

5/3/08 1.1 12.96

5/4/08 49.9 12.47

5/5/08 2.6 10.28

5/6/08 2.3 8.62

5/7/08 3.1 6.97

5/8/08 2.5 5.38

5/9/08 3.1 5.12

5/10/08 3.0 5.09

5/11/08 3.4 5.07

5/12/08 28.7 5.89

5/13/08 2.4 5.85

5/14/08 3.2 5.83

5/15/08 3.3 5.82

5/16/08 1.8 5.76
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

5/17/08 2.3 5.71

5/18/08 1.5 5.66

5/19/08 2.4 5.58

5/20/08 3.8 5.58

5/21/08 4.2 5.58

5/22/08 3.8 5.62

5/23/08 3.7 5.61

5/24/08 4.6 5.40

5/25/08 4.3 5.42

5/26/08 2.9 5.39

5/27/08 1.7 5.33

5/28/08 2.3 5.28

5/29/08 2.1 5.22

5/30/08 2.3 5.20

5/31/08 3.4 5.24

6/1/08 4.1 5.33

6/2/08 4.1 5.43

6/3/08 0.6 3.78

6/4/08 3.4 3.81

6/5/08 3.7 3.86

6/6/08 4.5 3.90

6/7/08 5.0 3.99

6/8/08 5.6 4.07

6/9/08 5.0 4.13

6/10/08 3.5 4.14

6/11/08 3.9 3.31

6/12/08 5.3 3.40

6/13/08 5.7 3.49

6/14/08 6.6 3.60

6/15/08 7.5 3.78

6/16/08 7.4 3.95

6/17/08 7.7 4.16

6/18/08 8.7 4.37

6/19/08 9.3 4.56

6/20/08 7.4 4.66

6/21/08 4.2 4.67

6/22/08 4.6 4.70

6/23/08 5.4 4.73

6/24/08 8.7 4.87

6/25/08 7.2 5.02

6/26/08 7.6 5.22

6/27/08 9.1 5.44

6/28/08 8.1 5.64

6/29/08 9.5 5.88

6/30/08 10.2 6.11

7/1/08 10.6 6.32

7/2/08 12.0 6.59

7/3/08 10.9 6.93

7/4/08 9.4 7.13

7/5/08 9.4 7.32
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

7/6/08 9.2 7.48

7/7/08 8.0 7.58

7/8/08 6.4 7.61

7/9/08 5.5 7.63

7/10/08 6.3 7.72

7/11/08 8.4 7.87

7/12/08 142.7 12.45

7/13/08 19.8 12.92

7/14/08 3.8 12.83

7/15/08 5.2 12.75

7/16/08 5.4 12.69

7/17/08 5.4 12.61

7/18/08 5.6 12.50

7/19/08 7.4 12.44

7/20/08 6.9 12.42

7/21/08 7.5 12.54

7/22/08 7.2 12.62

7/23/08 7.8 12.70

7/24/08 7.2 12.65

7/25/08 6.3 12.62

7/26/08 6.6 12.59

7/27/08 7.1 12.52

7/28/08 6.7 12.48

7/29/08 6.2 12.37

7/30/08 7.5 12.28

7/31/08 8.1 12.20

8/1/08 8.5 12.08

8/2/08 6.9 11.95

8/3/08 7.2 11.87

8/4/08 6.7 11.78

8/5/08 4.1 11.61

8/6/08 7.6 11.60

8/7/08 8.3 11.66

8/8/08 8.6 11.77

8/9/08 9.3 11.87

8/10/08 6.8 11.81

8/11/08 6.2 7.27

8/12/08 5.8 6.80

8/13/08 5.4 6.85

8/14/08 5.4 6.86

8/15/08 6.2 6.88

8/16/08 6.3 6.91

8/17/08 6.9 6.96

8/18/08 6.5 6.93

8/19/08 5.1 6.87

8/20/08 5.0 6.79

8/21/08 4.9 6.71

8/22/08 6.1 6.65

8/23/08 4.9 6.58

8/24/08 5.3 6.54
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

8/25/08 8.9 6.62

8/26/08 7.9 6.65

8/27/08 6.4 6.63

8/28/08 4.9 6.59

8/29/08 4.8 6.50

8/30/08 4.0 6.36

8/31/08 4.4 6.23

9/1/08 6.0 6.20

9/2/08 6.9 6.19

9/3/08 9.6 6.29

9/4/08 8.7 6.44

9/5/08 8.4 6.47

9/6/08 6.9 6.42

9/7/08 6.6 6.35

9/8/08 6.0 6.24

9/9/08 6.0 6.21

9/10/08 6.6 6.22

9/11/08 6.3 6.24

9/12/08 8.0 6.33

9/13/08 102.2 9.56

9/15/08 91.7 12.41

9/16/08 7.2 12.43

9/17/08 5.5 12.39

9/18/08 5.6 12.36

9/19/08 6.4 12.40

9/20/08 8.2 12.51

9/21/08 8.9 12.64

9/22/08 9.4 12.75

9/23/08 7.5 12.84

9/24/08 5.9 12.86

9/25/08 6.3 12.77

9/26/08 6.8 12.73

9/27/08 7.4 12.77

9/28/08 5.9 12.80

9/29/08 11.0 13.01

9/30/08 211.0 19.91

10/1/08 135.8 24.28

10/2/08 87.8 27.01

10/3/08 61.4 28.83

10/4/08 101.0 31.87

10/5/08 70.0 33.92

10/6/08 62.2 35.71

10/7/08 176.2 41.35

10/8/08 266.1 50.01

10/9/08 53.6 51.59

10/10/08 50.3 53.07

10/11/08 651.8 74.58

10/12/08 359.5 86.35

10/13/08 16.4 86.63

10/14/08 4.0 83.36
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

10/15/08 4.9 80.47

10/16/08 4.2 80.37

10/17/08 3.9 80.32

10/18/08 3.7 80.25

10/19/08 3.1 80.14

10/20/08 3.1 79.97

10/21/08 2.9 79.77

10/22/08 3.5 79.58

10/23/08 5.1 79.49

10/24/08 4.3 79.44

10/25/08 4.1 79.37

10/26/08 3.9 79.27

10/27/08 4.4 79.17

10/28/08 5.0 79.14

10/29/08 4.2 78.92

10/30/08 4.1 72.02

10/31/08 4.1 67.63

11/1/08 4.4 64.85

11/2/08 4.0 62.94

11/3/08 3.4 59.69

11/4/08 4.3 57.50

11/5/08 3.8 55.55

11/6/08 3.9 49.81

11/7/08 4.1 41.07

11/8/08 3.9 39.41

11/9/08 3.7 37.86

11/10/08 3.4 16.25

11/11/08 3.6 4.38

11/12/08 3.8 3.97

11/13/08 4.2 3.97

11/14/08 3.7 3.93

11/15/08 3.7 3.91

11/16/08 3.7 3.91

11/17/08 4.2 3.92

11/18/08 4.0 3.96

11/19/08 4.1 3.99

11/20/08 4.5 4.04

11/21/08 3.2 4.03

11/22/08 2.8 3.96

11/23/08 3.4 3.93

11/24/08 4.2 3.93

11/25/08 24.8 4.63

11/26/08 253.9 12.95

11/27/08 91.7 15.83

11/28/08 45.0 17.19

11/29/08 38.4 18.34

11/30/08 28.1 19.13

12/1/08 62.5 21.07

12/2/08 4.4 21.08

12/3/08 4.2 21.11
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

12/4/08 4.4 21.11

12/5/08 4.4 21.13

12/6/08 4.3 21.15

12/7/08 4.3 21.15

12/8/08 4.0 21.16

12/9/08 4.1 21.17

12/10/08 3.7 21.18

12/11/08 4.3 21.20

12/12/08 4.7 21.23

12/13/08 4.1 21.23

12/14/08 4.0 21.24

12/15/08 4.3 21.26

12/16/08 4.2 21.28

12/17/08 4.3 21.28

12/18/08 4.6 21.30

12/19/08 4.6 21.31

12/20/08 4.4 21.31

12/21/08 3.9 21.33

12/22/08 5.0 21.41

12/23/08 5.9 21.49

12/24/08 4.2 21.49

12/25/08 4.0 20.79

12/26/08 4.1 12.47

12/27/08 4.3 9.55

12/28/08 4.4 8.20

12/29/08 7.0 7.16

12/30/08 4.2 6.36

12/31/08 4.5 4.43

1/1/09 4.7 4.44

1/2/09 6.3 4.51

1/3/09 36.3 5.57

1/4/09 55.1 7.26

1/5/09 57.4 9.03

1/6/09 35.3 10.06

1/7/09 50.6 11.62

1/8/09 35.4 12.66

1/9/09 65.4 14.71

1/10/09 173.2 20.34

1/12/09 110.0 23.85

1/13/09 116.3 27.59

1/14/09 6.6 27.68

1/15/09 2.9 27.63

1/16/09 3.0 27.59

1/17/09 3.8 27.58

1/18/09 4.0 27.56

1/19/09 2.8 27.50

1/20/09 3.2 27.46

1/21/09 3.7 27.46

1/22/09 6.6 27.51

1/23/09 2.0 27.38
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

1/24/09 2.0 27.30

1/25/09 2.3 27.25

1/26/09 2.9 27.21

1/27/09 2.7 27.16

1/28/09 2.4 27.09

1/29/09 2.6 26.95

1/30/09 3.3 26.91

1/31/09 2.8 26.86

2/1/09 2.5 26.78

2/2/09 1.5 26.62

2/3/09 3.1 25.52

2/4/09 3.0 23.78

2/5/09 3.0 21.97

2/6/09 3.1 20.90

2/7/09 2.8 19.30

2/8/09 3.5 18.24

2/9/09 3.3 16.17

2/10/09 2.7 10.49

2/11/09 2.9 6.92

2/12/09 2.9 3.13

2/13/09 3.0 3.01

2/14/09 3.4 3.03

2/15/09 2.9 3.03

2/16/09 2.9 2.99

2/17/09 2.8 2.95

2/18/09 3.0 2.96

2/19/09 3.0 2.95

2/20/09 3.8 2.96

2/21/09 2.8 2.83

2/22/09 3.1 2.86

2/23/09 2.9 2.89

2/24/09 2.7 2.90

2/25/09 2.7 2.90

2/26/09 2.8 2.90

2/27/09 2.8 2.91

2/28/09 3.2 2.93

3/1/09 2.7 2.91

3/2/09 1.3 2.86

3/3/09 2.3 2.85

3/4/09 2.4 2.88

3/5/09 2.8 2.87

3/6/09 2.7 2.86

3/7/09 2.5 2.85

3/8/09 2.8 2.84

3/9/09 2.3 2.82

3/10/09 2.7 2.79

3/11/09 3.4 2.80

3/12/09 3.0 2.81

3/13/09 2.9 2.81

3/14/09 3.0 2.81
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

3/15/09 3.1 2.82

3/16/09 3.0 2.80

3/17/09 3.1 2.81

3/18/09 2.9 2.81

3/19/09 2.9 2.82

3/20/09 3.0 2.82

3/21/09 3.0 2.81

3/22/09 2.9 2.78

3/23/09 2.8 2.78

3/24/09 2.7 2.77

3/25/09 2.8 2.77

3/26/09 2.5 2.76

3/27/09 2.6 2.76

3/28/09 0.1 2.67

3/29/09 0.0 2.58

3/30/09 2.2 2.55

3/31/09 3.2 2.56

4/1/09 2.9 2.62

4/2/09 3.0 2.64

4/3/09 3.0 2.66

4/4/09 2.8 2.66

4/5/09 3.1 2.67

4/6/09 3.1 2.69

4/7/09 3.5 2.72

4/8/09 2.4 2.72

4/9/09 2.7 2.72

4/10/09 3.3 2.71

4/11/09 3.0 2.72

4/12/09 3.2 2.72

4/13/09 3.3 2.73

4/14/09 3.0 2.73

4/15/09 3.0 2.73

4/16/09 3.0 2.73

4/17/09 3.1 2.73

4/18/09 3.2 2.74

4/19/09 3.2 2.75

4/20/09 3.1 2.75

4/21/09 3.6 2.78

4/22/09 2.9 2.78

4/23/09 3.0 2.79

4/24/09 2.8 2.79

4/25/09 2.8 2.80

4/26/09 2.8 2.80

4/27/09 3.0 2.90

4/28/09 3.2 3.00

4/29/09 7.4 3.18

4/30/09 129.5 7.39

5/1/09 114.7 11.11

5/2/09 69.7 13.34

5/3/09 78.2 15.84
used in 

mact

date_mmddyy

yy

thc_dayave_ppm _30dayrollingave_p

pm

5/4/09 124.1 19.89

5/5/09 68.4 22.06

5/6/09 54.1 23.77

5/7/09 62.8 25.74

5/8/09 28.2 26.60

5/9/09 0.0 26.51

5/10/09 0.0 26.40

5/12/09 100.1 29.64

5/13/09 94.0 32.67

5/14/09 7.9 32.82

5/15/09 518.0 49.99

5/18/09 73.5 52.34

5/19/09 4.4 52.38

5/20/09 3.4 52.40

5/21/09 93.0 55.39

5/22/09 73.8 57.74

5/23/09 58.6 59.59

5/24/09 49.3 61.12

5/25/09 0.0 61.02

5/26/09 0.0 60.92

5/27/09 6.4 61.04

5/28/09 10.3 61.29

5/29/09 2.8 61.29

5/30/09 2.5 61.28

5/31/09 2.5 61.26

avg 13.36

651.83 86.63

0.00 1.99

stdev 42.08