BQS OBSP Determination:
TERT-BUTYL METHYL ETHER (MTBE)
METHOD: 4437 , TESTIDCODE: 78032GM016
DATES: 05/20/14 - 08/30/17

Expected Conc. = 0.0799 Median Pct Recovery = 109% Expected Conc. = 0.0799 Median Pct Recovery = 109% Expected Conc. = 0.0799 Median Pct Recovery = 109% Expected Conc. = 0.05 Median Pct Recovery = 109% Expected Conc. = 0.05 Median Pct Recovery = 109% Expected Conc. = 0.05 Median Pct Recovery = 109% Expected Conc. = 0.05 Median Pct Recovery = 109% Expected Conc. = 0.048 Median Pct Recovery = 109% Expected Conc. = 0.048 Median Pct Recovery = 109% Expected Conc. = 0.048 Median Pct Recovery = 109% Expected Conc. = 0.048 Median Pct Recovery = 109% Expected Conc. = 0.048 Median Pct Recovery = 109% Expected Conc. = 0.048 Median Pct Recovery = 109% Expected Conc. = 0.048 Median Pct Recovery = 109% Expected Conc. = 0.048 Median Pct Recovery = 109% Expected Conc. = 0.0476 Median Pct Recovery = 109% Expected Conc. = 0.0476 Median Pct Recovery = 109% Expected Conc. = 0.0476 Median Pct Recovery = 109% Expected Conc. = 0.0476 Median Pct Recovery = 109% Expected Conc. = 0.0476 Median Pct Recovery = 109% Expected Conc. = 0.0476 Median Pct Recovery = 109% Expected Conc. = 0.045 Median Pct Recovery = 109% Expected Conc. = 0.045 Median Pct Recovery = 109% Expected Conc. = 0.045 Median Pct Recovery = 109% Expected Conc. = 0.045 Median Pct Recovery = 109% Expected Conc. = 0.045 Median Pct Recovery = 109% Expected Conc. = 0.045 Median Pct Recovery = 109% Expected Conc. = 0.036 Median Pct Recovery = 109% Expected Conc. = 0.036 Median Pct Recovery = 109% Expected Conc. = 0.036 Median Pct Recovery = 109% Expected Conc. = 0.036 Median Pct Recovery = 109% Expected Conc. = 0.03 Median Pct Recovery = 109% Expected Conc. = 0.03 Median Pct Recovery = 109% Expected Conc. = 0.03 Median Pct Recovery = 109% Expected Conc. = 0.03 Median Pct Recovery = 109% Expected Conc. = 0.03 Median Pct Recovery = 109% Expected Conc. = 0.03 Median Pct Recovery = 109% Expected Conc. = 0.03 Median Pct Recovery = 109% Expected Conc. = 0.03 Median Pct Recovery = 109% Expected Conc. = 0.03 Median Pct Recovery = 109% Expected Conc. = 0.03 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.024 Median Pct Recovery = 109% Expected Conc. = 0.024 Median Pct Recovery = 109% Expected Conc. = 0.024 Median Pct Recovery = 109% Expected Conc. = 0.024 Median Pct Recovery = 109% Expected Conc. = 0.024 Median Pct Recovery = 109% Expected Conc. = 0.024 Median Pct Recovery = 109% Expected Conc. = 0.024 Median Pct Recovery = 109% Expected Conc. = 0.024 Median Pct Recovery = 109% Expected Conc. = 0.024 Median Pct Recovery = 109% Expected Conc. = 0.024 Median Pct Recovery = 109% Expected Conc. = 0.0238 Median Pct Recovery = 109% Expected Conc. = 0.0238 Median Pct Recovery = 109% Expected Conc. = 0.0238 Median Pct Recovery = 109% Expected Conc. = 0.0238 Median Pct Recovery = 109% Expected Conc. = 0.0238 Median Pct Recovery = 109% Expected Conc. = 0.0238 Median Pct Recovery = 109% Expected Conc. = 0.0238 Median Pct Recovery = 109% Expected Conc. = 0.0238 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Expected Conc. = 0.05 Median Pct Recovery = 109% Expected Conc. = 0.05 Median Pct Recovery = 109% Expected Conc. = 0.0476 Median Pct Recovery = 109% Expected Conc. = 0.0476 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.027 Median Pct Recovery = 109% Expected Conc. = 0.018 Median Pct Recovery = 109% Analysis Date = 11/29/16 SpikeMix = Accu 216041354: 40 µl & Abs 060916HVOC: 40 µl Pct Recovery = 99% Analysis Date = 07/06/16 SpikeMix = Accu 216041354: 40 µl & NSI 041516: 40 µl & NSI 041416HVOC: 40 µl Pct Recovery = 111% Analysis Date = 12/23/16 SpikeMix = ChemService 5082800: 25 µl & Accu 216041354: 25 µl & NSI 041416HVOC: 25 µl Pct Recovery = 105% Analysis Date = 08/31/16 SpikeMix = ChemService 5082800: 25 µl & Accu 216041354: 25 µl Pct Recovery = 109% Analysis Date = 07/11/14 SpikeMix = ChemService 2615700: 20 µl & Accu 214031128: 20 µl Pct Recovery = 134% Analysis Date = 07/03/14 SpikeMix = Abs 032014: 20 µl & ChemService 2615700: 20 µl Pct Recovery = 110% Analysis Date = 06/07/14 SpikeMix = ChemService 2615700: 20 µl & Supelco LC06437: 20 µl Pct Recovery = 98% Analysis Date = 06/06/14 SpikeMix = NSI 031814: 20 µl & ChemService 2615700: 20 µl Pct Recovery = 97% Analysis Date = 02/26/15 SpikeMix = ERA 0321-14-05A: 20 µl & Supelco LC06437: 20 µl Pct Recovery = 96% Analysis Date = 11/13/14 SpikeMix = NSI 031814: 20 µl & ERA 0321-14-05A: 20 µl Pct Recovery = 101% Analysis Date = 08/13/14 SpikeMix = ERA 0321-14-05: 20 µl & Accu 214031128: 20 µl Pct Recovery = 162% Analysis Date = 10/09/15 SpikeMix = Supelco LC13544: 25 µl & NSI 050515HVOC: 25 µl Pct Recovery = 110% Analysis Date = 10/09/15 SpikeMix = ERA 0601-15-05: 25 µl & Accu 215041338: 25 µl Pct Recovery = 94% Analysis Date = 06/26/15 SpikeMix = ChemService 3818700: 25 µl & Accu 215041338: 25 µl Pct Recovery = 97% Analysis Date = 08/16/17 SpikeMix = ChemService 6441300: 15 µl & Spex Organics BW170726021: 15 µl & ChemService 6424 Pct Recovery = 112% Analysis Date = 08/01/17 SpikeMix = Abs 062917: 15 µl & Phenova B20160303: 15 µl Pct Recovery = 158% Analysis Date = 07/14/17 SpikeMix = Accu 216041354: 15 µl & ChemService 5082800: 15 µl & Accu 216041225: 15 µl Pct Recovery = 96% Analysis Date = 02/02/17 SpikeMix = Accu 216041354: 15 µl & NSI 110916: 15 µl & Accu 216041225: 15 µl Pct Recovery = 120% Analysis Date = 08/12/16 SpikeMix = Accu 216041354: 15 µl & Abs 060916HVOC: 15 µl Pct Recovery = 95% Analysis Date = 06/23/16 SpikeMix = . Pct Recovery = 119% Analysis Date = 05/20/16 SpikeMix = Accu 216041354: 15 µl & NSI 041516: 15 µl & Accu 216041225: 15 µl Pct Recovery = 123% Analysis Date = 04/28/16 SpikeMix = ChemService 3818700: 15 µl & Supelco LC13544: 15 µl Pct Recovery = 111% Analysis Date = 07/30/15 SpikeMix = Supelco LC13544: 15 µl & NSI 050515HVOC: 15 µl Pct Recovery = 116% Analysis Date = 05/14/15 SpikeMix = ChemService 3818700: 15 µl & Supelco LC13544: 15 µl Pct Recovery = 121% Analysis Date = 11/25/15 SpikeMix = Accu 215041338: 15 µl & Abs 040315: 15 µl Pct Recovery = 96% Analysis Date = 09/05/15 SpikeMix = Accu 215041338: 15 µl & NSI 050515HVOC: 15 µl Pct Recovery = 95% Analysis Date = 08/30/17 SpikeMix = ChemService 6441300: 10 µl & ChemService 6424500: 10 µl & Spex Organics BW170725 Pct Recovery = 114% Analysis Date = 08/10/17 SpikeMix = ChemService 6441300: 10 µl & ChemService 6441600: 10 µl & ChemService 6424500: 1 Pct Recovery = 112% Analysis Date = 11/22/14 SpikeMix = ChemService 2615700: 10 µl & Supelco LC06437: 10 µl Pct Recovery = 90% Analysis Date = 07/30/14 SpikeMix = NSI 031814: 10 µl & ChemService 2615700: 10 µl Pct Recovery = 86% Analysis Date = 05/20/14 SpikeMix = ChemService 2615700: 10 µl & Accu 214031128: 10 µl Pct Recovery = 150% Analysis Date = 04/25/15 SpikeMix = Abs 032014: 10 µl & ERA 0321-14-05A: 10 µl Pct Recovery = 114% Analysis Date = 10/21/14 SpikeMix = ERA 0321-14-05A: 10 µl & Accu 214031128: 10 µl Pct Recovery = 167% Analysis Date = 09/06/14 SpikeMix = NSI 031814: 10 µl & ERA 0321-14-05: 10 µl Pct Recovery = 107% Analysis Date = 09/06/14 SpikeMix = ERA 0321-14-05: 10 µl & Supelco LC06437: 10 µl Pct Recovery = 105% Analysis Date = 03/22/16 SpikeMix = Supelco LC13544: 10 µl & NSI 050515HVOC: 10 µl Pct Recovery = 123% Analysis Date = 12/10/15 SpikeMix = ChemService 3818700: 10 µl & Supelco LC13544: 10 µl Pct Recovery = 106% Analysis Date = 05/05/15 SpikeMix = Supelco LC13544: 10 µl & Abs 040315: 10 µl Pct Recovery = 117% Analysis Date = 02/12/16 SpikeMix = ERA 0601-15-05: 10 µl & Accu 215041338: 10 µl Pct Recovery = 95% Analysis Date = 01/05/16 SpikeMix = Accu 215041338: 10 µl & Abs 040315: 10 µl Pct Recovery = 103% Analysis Date = 06/05/15 SpikeMix = Accu 215041338: 10 µl & Abs 040315: 10 µl Pct Recovery = 103% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Median Pct Recovery = 109% Y = 1
The SGPlot Procedure