BQS ORGANIC BLIND SAMPLES
ETHYL TERT-BUTYL ETHER,
Schedule: 4024 Testid: 50004GCM60
Measured in MICROGRAMS PER LITER
03/23/07 TO 01/03/13
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
ETHYL TERT-BUTYL ETHER

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 54 104% 12% 102% 9%
Total 54 104% 12% 102% 9%

Miscellaneous Statistics for the Samples
ETHYL TERT-BUTYL ETHER

Characteristic N % % Basis
Plotted 54 100% Spiked
Estimated Values 13 24% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 54 .  
False Negatives 0 0% 0 out of 54
Not Spiked 54 .  
False Positives 0 0% 0 out of 54

BQS ORGANIC BLIND SAMPLES
TERT-PENTYL METHYL ETHER (TAME),
Schedule: 4024 Testid: 50005GCM60
Measured in MICROGRAMS PER LITER
03/23/07 TO 01/03/13
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
TERT-PENTYL METHYL ETHER (TAME)

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 54 105% 11% 104% 8%
Total 54 105% 11% 104% 8%

Miscellaneous Statistics for the Samples
TERT-PENTYL METHYL ETHER (TAME)

Characteristic N % % Basis
Plotted 54 100% Spiked
Estimated Values 7 13% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 54 .  
False Negatives 0 0% 0 out of 54
Not Spiked 54 .  
False Positives 0 0% 0 out of 54

BQS ORGANIC BLIND SAMPLES
METHYL ACETATE,
Schedule: 4024 Testid: 77032GCM60
Measured in MICROGRAMS PER LITER
02/15/07 TO 12/03/12
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
METHYL ACETATE

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 54 105% 13% 104% 14%
Total 54 105% 13% 104% 14%

Miscellaneous Statistics for the Samples
METHYL ACETATE

Characteristic N % % Basis
Plotted 54 100% Spiked
Estimated Values 1 2% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 54 .  
False Negatives 0 0% 0 out of 54
Not Spiked 54 .  
False Positives 1 2% 1 out of 54

BQS ORGANIC BLIND SAMPLES
TERT-BUTYL ALCOHOL,
Schedule: 4024 Testid: 77035GCM60
Measured in MICROGRAMS PER LITER
02/15/07 TO 12/03/12
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
TERT-BUTYL ALCOHOL

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 13 92% 10% 88% 8%
>= Reporting Level 41 100% 7% 99% 6%
Total 54 98% 8% 98% 7%

Miscellaneous Statistics for the Samples
TERT-BUTYL ALCOHOL

Characteristic N % % Basis
Plotted 54 100% Spiked
Estimated Values 12 22% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 54 .  
False Negatives 0 0% 0 out of 54
Not Spiked 54 .  
False Positives 0 0% 0 out of 54

BQS ORGANIC BLIND SAMPLES
TERT-AMYL ALCOHOL,
Schedule: 4024 Testid: 77073GCM60
Measured in MICROGRAMS PER LITER
02/15/07 TO 12/03/12
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
TERT-AMYL ALCOHOL

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 54 100% 10% 100% 6%
Total 54 100% 10% 100% 6%

Miscellaneous Statistics for the Samples
TERT-AMYL ALCOHOL

Characteristic N % % Basis
Plotted 54 100% Spiked
Estimated Values 2 4% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 54 .  
False Negatives 0 0% 0 out of 54
Not Spiked 54 .  
False Positives 0 0% 0 out of 54

BQS ORGANIC BLIND SAMPLES
TERT-BUTYL METHYL ETHER (MTBE),
Schedule: 4024 Testid: 78032GCM60
Measured in MICROGRAMS PER LITER
03/23/07 TO 01/03/13
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
TERT-BUTYL METHYL ETHER (MTBE)

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 6 106% 7% 106% 7%
>= Reporting Level 48 105% 14% 105% 12%
Total 54 105% 13% 105% 11%

Miscellaneous Statistics for the Samples
TERT-BUTYL METHYL ETHER (MTBE)

Characteristic N % % Basis
Plotted 54 100% Spiked
Estimated Values 5 9% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 54 .  
False Negatives 0 0% 0 out of 54
Not Spiked 54 .  
False Positives 0 0% 0 out of 54

BQS ORGANIC BLIND SAMPLES
ACETONE,
Schedule: 4024 Testid: 81552GCM60
Measured in MICROGRAMS PER LITER
02/15/07 TO 12/03/12
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
ACETONE

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 54 118% 17% 114% 16%
Total 54 118% 17% 114% 16%

Miscellaneous Statistics for the Samples
ACETONE

Characteristic N % % Basis
Plotted 54 100% Spiked
Estimated Values 0 0% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 54 .  
False Negatives 0 0% 0 out of 54
Not Spiked 54 .  
False Positives 6 11% 6 out of 54

BQS ORGANIC BLIND SAMPLES
DIISOPROPYL ETHER,
Schedule: 4024 Testid: 81577GCM60
Measured in MICROGRAMS PER LITER
03/23/07 TO 01/03/13
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
DIISOPROPYL ETHER

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 54 103% 9% 101% 8%
Total 54 103% 9% 101% 8%

Miscellaneous Statistics for the Samples
DIISOPROPYL ETHER

Characteristic N % % Basis
Plotted 54 100% Spiked
Estimated Values 4 7% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 54 .  
False Negatives 0 0% 0 out of 54
Not Spiked 54 .  
False Positives 0 0% 0 out of 54