BQS OBSP Determination:
BUTYLBENZENE
METHOD: 4054 , TESTIDCODE: 77342GCM66
DATES: 02/23/00 - 10/04/03

Expected Conc. = 4.004 Median Pct Recovery = 99% Expected Conc. = 4.004 Median Pct Recovery = 99% Expected Conc. = 4.004 Median Pct Recovery = 99% Expected Conc. = 4.004 Median Pct Recovery = 99% Expected Conc. = 4.004 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 3.84 Median Pct Recovery = 99% Expected Conc. = 1.9 Median Pct Recovery = 99% Expected Conc. = 1.9 Median Pct Recovery = 99% Expected Conc. = 1.9 Median Pct Recovery = 99% Expected Conc. = 1.9 Median Pct Recovery = 99% Expected Conc. = 1.536 Median Pct Recovery = 99% Expected Conc. = 1.536 Median Pct Recovery = 99% Expected Conc. = 1.536 Median Pct Recovery = 99% Expected Conc. = 1.536 Median Pct Recovery = 99% Expected Conc. = 1.536 Median Pct Recovery = 99% Expected Conc. = 1.536 Median Pct Recovery = 99% Expected Conc. = 0.312 Median Pct Recovery = 99% Expected Conc. = 0.312 Median Pct Recovery = 99% Expected Conc. = 0.312 Median Pct Recovery = 99% Expected Conc. = 0.312 Median Pct Recovery = 99% Expected Conc. = 0.312 Median Pct Recovery = 99% Analysis Date = 10/04/03 SpikeMix = AccuStandard B2080329: 20 µl Pct Recovery = 83% Analysis Date = 09/10/03 SpikeMix = AccuStandard B2080329: 20 µl Pct Recovery = 80% Analysis Date = 08/01/03 SpikeMix = AccuStandard B2080329: 20 µl Pct Recovery = 95% Analysis Date = 07/09/03 SpikeMix = Absolute 091701: 20 µl Pct Recovery = 114% Analysis Date = 06/07/03 SpikeMix = Absolute 091701: 20 µl Pct Recovery = 124% Analysis Date = 05/12/03 SpikeMix = Absolute 091701: 20 µl Pct Recovery = 99% Analysis Date = 08/06/02 SpikeMix = Absolute 091701: 20 µl Pct Recovery = 87% Analysis Date = 05/09/02 SpikeMix = Absolute 091701: 20 µl Pct Recovery = 122% Analysis Date = 02/22/02 SpikeMix = Absolute 091701: 20 µl Pct Recovery = 85% Analysis Date = 11/15/00 SpikeMix = NSI 053100-01: 25 µl Pct Recovery = 98% Analysis Date = 08/16/00 SpikeMix = NSI 053100-01: 25 µl Pct Recovery = 94% Analysis Date = 06/21/02 SpikeMix = Absolute 091701: 8 µl Pct Recovery = 111% Analysis Date = 03/16/02 SpikeMix = Absolute 091701: 8 µl Pct Recovery = 108% Analysis Date = 01/11/02 SpikeMix = Absolute 091701: 8 µl Pct Recovery = 119% Analysis Date = 06/15/00 SpikeMix = NSI 121699: 20 µl Pct Recovery = 99% Analysis Date = 04/27/00 SpikeMix = NSI 121699: 20 µl Pct Recovery = 108% Analysis Date = 02/23/00 SpikeMix = NSI 121699: 20 µl Pct Recovery = 95% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Median Pct Recovery = 99% Y = 1
The SGPlot Procedure