OBSP Determination:
DIMETHOATE, OXYGEN ANALOG
METHOD: 2437 , TESTIDCODE: 68661LCM60

Analysis Date = 07/19/17 SpikeMix = Spex Organics TS160511023: 80 µl & Abs 072516: 80 µl Pct Recovery = 1100% Analysis Date = 01/18/17 SpikeMix = Spex Organics TS160511023: 80 µl & Abs 071816: 80 µl Pct Recovery = 1290% Analysis Date = 01/17/17 SpikeMix = Spex Organics TS160511023: 80 µl & Abs 071816: 80 µl Pct Recovery = 1220% Analysis Date = 09/13/16 SpikeMix = Abs 072516: 80 µl & Spex Organics TS160511023: 80 µl Pct Recovery = 1380% Analysis Date = 09/13/16 SpikeMix = Abs 072516: 80 µl & Spex Organics TS160511023: 80 µl Pct Recovery = 1170% Analysis Date = 07/28/17 SpikeMix = Spex Organics TS160511023: 40 µl & Abs 071816: 40 µl Pct Recovery = 954% Analysis Date = 01/04/17 SpikeMix = Abs 072516: 40 µl & Spex Organics TS160511023: 40 µl Pct Recovery = 1140% Analysis Date = 01/04/17 SpikeMix = Abs 072516: 40 µl & Spex Organics TS160511023: 40 µl Pct Recovery = 1140% Analysis Date = 11/08/16 SpikeMix = Spex Organics TS160511023: 40 µl & Abs 071816: 40 µl Pct Recovery = 1314% Analysis Date = 11/08/16 SpikeMix = Spex Organics TS160511023: 40 µl & Abs 071816: 40 µl Pct Recovery = 1306% Analysis Date = 08/11/16 SpikeMix = Spex Organics TS160511023: 40 µl & ChemService 5154100: 40 µl & ChemService 5154 Pct Recovery = 4040% Analysis Date = 08/11/16 SpikeMix = Spex Organics TS160511023: 40 µl & ChemService 5154100: 40 µl & ChemService 5154 Pct Recovery = 8820% Analysis Date = 07/29/16 SpikeMix = Spex Organics TS160511023: 40 µl & ChemService 5154100: 40 µl & ChemService 5154 Pct Recovery = 1014% Analysis Date = 07/29/16 SpikeMix = Spex Organics TS160511023: 40 µl & ChemService 5154100: 40 µl & ChemService 5154 Pct Recovery = 718% Analysis Date = 06/29/16 SpikeMix = Spex Organics TS160511023: 40 µl & ChemService 5154100: 40 µl & ChemService 5154 Pct Recovery = 1316% Analysis Date = 06/29/16 SpikeMix = Spex Organics TS160511023: 40 µl & ChemService 5154100: 40 µl & ChemService 5154 Pct Recovery = 1586% Analysis Date = 09/22/17 SpikeMix = Abs 071917Pest3: 80 µl & Abs 072417Pest3: 80 µl Pct Recovery = 78% Analysis Date = 03/10/17 SpikeMix = Abs 072516: 100 µl & Abs 071216: 100 µl Pct Recovery = 90% Analysis Date = 03/10/17 SpikeMix = Abs 072516: 100 µl & Abs 071216: 100 µl Pct Recovery = 88% Analysis Date = 02/16/17 SpikeMix = Abs 071216: 100 µl & ChemService 5154100: 100 µl Pct Recovery = 78% Analysis Date = 02/16/17 SpikeMix = Abs 071216: 100 µl & ChemService 5154100: 100 µl Pct Recovery = 82% Analysis Date = 08/24/16 SpikeMix = Abs 072516: 100 µl & Abs 071216: 100 µl Pct Recovery = 76% Analysis Date = 08/24/16 SpikeMix = Abs 072516: 100 µl & Abs 071216: 100 µl Pct Recovery = 86% Analysis Date = 09/15/17 SpikeMix = Abs 071917Pest3: 50 µl & Abs 072417Pest3: 50 µl Pct Recovery = 94% Analysis Date = 09/06/17 SpikeMix = Abs 072417Pest3: 50 µl & Abs 071917Pest3: 50 µl Pct Recovery = 105% Analysis Date = 08/23/17 SpikeMix = Abs 071717Pest3: 50 µl & Abs 072417Pest3: 50 µl Pct Recovery = 65% Analysis Date = 07/11/17 SpikeMix = Abs 071216: 80 µl & Abs 071816: 80 µl Pct Recovery = 72% Analysis Date = 06/24/17 SpikeMix = Abs 071216: 80 µl & Abs 071816: 80 µl Pct Recovery = 85% Analysis Date = 06/02/17 SpikeMix = Abs 071216: 80 µl & ChemService 5154100: 80 µl Pct Recovery = 101% Analysis Date = 12/13/16 SpikeMix = Abs 071216: 80 µl & Abs 071816: 80 µl Pct Recovery = 78% Analysis Date = 12/13/16 SpikeMix = Abs 071216: 80 µl & Abs 071816: 80 µl Pct Recovery = 82% Analysis Date = 03/01/16 SpikeMix = ChemService 3995200: 20 µl & ChemService 3880100: 20 µl & ChemService 4047100: 2 Pct Recovery = 107% Analysis Date = 03/01/16 SpikeMix = ChemService 3995200: 20 µl & ChemService 3880100: 20 µl & ChemService 4047100: 2 Pct Recovery = 101% Analysis Date = 03/01/16 SpikeMix = ChemService 3995200: 20 µl & ChemService 3880100: 20 µl & ChemService 4047100: 2 Pct Recovery = 109% Analysis Date = 04/20/16 SpikeMix = ERA 0406-15-04: 20 µl & ERA 0406-15-05: 20 µl Pct Recovery = 80% Analysis Date = 04/20/16 SpikeMix = ERA 0406-15-05: 20 µl & ERA 0406-15-04: 20 µl Pct Recovery = 113% Analysis Date = 03/17/16 SpikeMix = ERA 0406-15-05: 20 µl & ChemService 4047100: 20 µl & ChemService 3880200: 20 µl Pct Recovery = 76% Analysis Date = 03/17/16 SpikeMix = ERA 0406-15-05: 20 µl & ChemService 4047100: 20 µl & ChemService 3880200: 20 µl Pct Recovery = 107% Analysis Date = 03/17/16 SpikeMix = ERA 0406-15-05: 20 µl & ChemService 4047100: 20 µl & ChemService 3880200: 20 µl Pct Recovery = 96% Analysis Date = 03/11/16 SpikeMix = ChemService 4047000: 20 µl & ChemService 3880000: 20 µl & ERA 0406-15-05: 20 µl Pct Recovery = 72% Analysis Date = 03/11/16 SpikeMix = ChemService 4047000: 20 µl & ChemService 3880000: 20 µl & ERA 0406-15-05: 20 µl Pct Recovery = 74% Analysis Date = 03/11/16 SpikeMix = ChemService 4047000: 20 µl & ChemService 3880000: 20 µl & ERA 0406-15-05: 20 µl Pct Recovery = 52% Analysis Date = 07/08/17 SpikeMix = Abs 071216: 40 µl & Abs 072516: 40 µl Pct Recovery = 87% Analysis Date = 06/07/17 SpikeMix = Abs 071216: 40 µl & Abs 071816: 40 µl Pct Recovery = 137% Analysis Date = 11/09/16 SpikeMix = Abs 072516: 40 µl & Abs 071216: 40 µl Pct Recovery = 91% Analysis Date = 09/21/16 SpikeMix = Abs 071216: 40 µl & ChemService 5154100: 40 µl Pct Recovery = 88% Analysis Date = 09/21/16 SpikeMix = Abs 071216: 40 µl & ChemService 5154100: 40 µl Pct Recovery = 77% Analysis Date = 08/31/16 SpikeMix = Abs 071216: 40 µl & Abs 071816: 40 µl Pct Recovery = 72% Analysis Date = 08/30/16 SpikeMix = Abs 071216: 40 µl & Abs 071816: 40 µl Pct Recovery = 78% Analysis Date = 09/23/17 SpikeMix = Abs 071717Pest3: 20 µl & Abs 072417Pest3: 20 µl Pct Recovery = 94% Analysis Date = 08/27/17 SpikeMix = Abs 071917Pest3: 20 µl & Abs 072417Pest3: 20 µl Pct Recovery = 107% Analysis Date = 02/24/16 SpikeMix = ERA 0406-15-04: 10 µl & ChemService 3995200: 10 µl & ChemService 3880100: 10 µl Pct Recovery = 114% Analysis Date = 02/24/16 SpikeMix = ERA 0406-15-04: 10 µl & ChemService 3995200: 10 µl & ChemService 3880100: 10 µl Pct Recovery = 127% Analysis Date = 02/24/16 SpikeMix = ERA 0406-15-04: 10 µl & ChemService 3995200: 10 µl & ChemService 3880100: 10 µl Pct Recovery = 117% Analysis Date = 02/18/16 SpikeMix = ChemService 4047000: 10 µl & ChemService 3880000: 10 µl & ChemService 3995200: 1 Pct Recovery = 82% Analysis Date = 02/18/16 SpikeMix = ChemService 4047000: 10 µl & ChemService 3880000: 10 µl & ChemService 3995200: 1 Pct Recovery = 67% Analysis Date = 02/18/16 SpikeMix = ChemService 4047000: 10 µl & ChemService 3880000: 10 µl & ChemService 3995200: 1 Pct Recovery = 75% Analysis Date = 02/12/16 SpikeMix = ChemService 3995200: 10 µl & ChemService 3880100: 10 µl & ERA 0406-15-06: 10 µl Pct Recovery = 60% Analysis Date = 02/12/16 SpikeMix = ChemService 3995200: 10 µl & ChemService 3880100: 10 µl & ERA 0406-15-06: 10 µl Pct Recovery = 92% Analysis Date = 02/12/16 SpikeMix = ChemService 3995200: 10 µl & ChemService 3880100: 10 µl & ERA 0406-15-06: 10 µl Pct Recovery = 72% Analysis Date = 02/18/16 SpikeMix = ERA 0406-15-05: 10 µl & ERA 0406-15-06: 10 µl Pct Recovery = 76% Analysis Date = 02/18/16 SpikeMix = ERA 0406-15-05: 10 µl & ERA 0406-15-06: 10 µl Pct Recovery = 61% Analysis Date = 02/18/16 SpikeMix = ERA 0406-15-05: 10 µl & ERA 0406-15-06: 10 µl Pct Recovery = 71% Analysis Date = 11/11/16 SpikeMix = Abs 071216: 10 µl & Abs 071816: 10 µl Pct Recovery = 195% Analysis Date = 11/11/16 SpikeMix = Abs 071216: 10 µl & Abs 071816: 10 µl Pct Recovery = 166% Analysis Date = 09/22/17 Pct Recovery = 151% Analysis Date = 09/20/17 Pct Recovery = 155% Analysis Date = 09/20/17 Pct Recovery = 155% Analysis Date = 09/17/17 Pct Recovery = 160% Analysis Date = 09/17/17 Pct Recovery = 160% Analysis Date = 09/14/17 Pct Recovery = 164% Analysis Date = 09/14/17 Pct Recovery = 164% Analysis Date = 09/11/17 Pct Recovery = 168% Analysis Date = 09/11/17 Pct Recovery = 168% Analysis Date = 09/08/17 Pct Recovery = 172% Analysis Date = 09/08/17 Pct Recovery = 172% Analysis Date = 09/05/17 Pct Recovery = 177% Analysis Date = 09/05/17 Pct Recovery = 177% Analysis Date = 09/02/17 Pct Recovery = 181% Analysis Date = 09/02/17 Pct Recovery = 181% Analysis Date = 08/30/17 Pct Recovery = 185% Analysis Date = 08/30/17 Pct Recovery = 185% Analysis Date = 08/27/17 Pct Recovery = 190% Analysis Date = 08/27/17 Pct Recovery = 190% Analysis Date = 08/24/17 Pct Recovery = 194% Analysis Date = 08/24/17 Pct Recovery = 194% Analysis Date = 08/21/17 Pct Recovery = 198% Analysis Date = 08/21/17 Pct Recovery = 198% Analysis Date = 08/18/17 Pct Recovery = 203% Analysis Date = 08/18/17 Pct Recovery = 203% Analysis Date = 03/09/16 Pct Recovery = 191% Analysis Date = 03/09/16 Pct Recovery = 191% Analysis Date = 03/06/16 Pct Recovery = 163% Analysis Date = 03/06/16 Pct Recovery = 163% Analysis Date = 03/03/16 Pct Recovery = 134% Analysis Date = 03/03/16 Pct Recovery = 134% Analysis Date = 02/29/16 Pct Recovery = 106% Analysis Date = 02/29/16 Pct Recovery = 106% Analysis Date = 02/26/16 Pct Recovery = 77% Analysis Date = 02/26/16 Pct Recovery = 77% Analysis Date = 02/23/16 Pct Recovery = 48% Analysis Date = 02/23/16 Pct Recovery = 48% Analysis Date = 02/20/16 Pct Recovery = 20% Analysis Date = 02/20/16 Pct Recovery = 20% Analysis Date = 02/17/16 Pct Recovery = ( 9%) Y = 1.5 Y = 0.5 Y = 1
The SGPlot Procedure

Plotted Points Statistics
DIMETHOATE, OXYGEN ANALOG

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 2 180% 21% 180% 22%
>= Reporting Level 63 533% 1250% 92% 475%
Total 65 522% 1232% 94% 87%

Sample Statistics
DIMETHOATE, OXYGEN ANALOG

Characteristic N % % Basis
Plotted 65 98% Spiked
Estimated Values 5 8% Spiked
Deleted Values 2 2% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 66 .  
False Negatives 1 2% 1 out of 66
Not Spiked 32 .  
False Positives 0 0% 0 out of 30