OBSP Spike Level Charts

BQS OBSP Determination:

1RS CIS-PERMETHRIN

SCHEDULE: 2001 , TESTIDCODE: 82687GCM35

Plotted Points Statistics

1RS CIS-PERMETHRIN

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	65	66%	17%	62%	16%
Total	65	66%	17%	62%	16%

Sample Statistics

1RS CIS-PERMETHRIN

Characteristic	N	%	% Basis
Plotted	65	100%	Spiked
Estimated Values	4	6%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	65	.
False Negatives	0	0%	0 out of 65
Not Spiked	65	.
False Positives	2	3%	2 out of 65

BQS OBSP Determination:

2,6-DIETHYLANILINE

SCHEDULE: 2001 , TESTIDCODE: 82660GCM35

Open Data Set

Plotted Points Statistics

2,6-DIETHYLANILINE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	90%	28%	89%	17%
Total	70	90%	28%	89%	17%

Sample Statistics

2,6-DIETHYLANILINE

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	2	3%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

ACETOCHLOR

SCHEDULE: 2001 , TESTIDCODE: 49260GCM33

Open Data Set

Plotted Points Statistics

ACETOCHLOR

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	94%	22%	93%	18%
Total	70	94%	22%	93%	18%

Sample Statistics

ACETOCHLOR

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	4	6%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

ALACHLOR

SCHEDULE: 2001 , TESTIDCODE: 46342GCM35

Open Data Set

Plotted Points Statistics

ALACHLOR

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	109%	51%	104%	24%
Total	70	109%	51%	104%	24%

Sample Statistics

ALACHLOR

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

ALPHA-HCH

SCHEDULE: 2001 , TESTIDCODE: 34253GCM35

Open Data Set

Plotted Points Statistics

ALPHA-HCH

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	98%	15%	97%	11%
Total	70	98%	15%	97%	11%

Sample Statistics

ALPHA-HCH

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	0	0%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

ATRAZINE

SCHEDULE: 2001 , TESTIDCODE: 39632GCM35

Open Data Set

Plotted Points Statistics

ATRAZINE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	110%	22%	113%	22%
Total	70	110%	22%	113%	22%

Sample Statistics

ATRAZINE

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	6	9%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	1	2%	1 out of 60

BQS OBSP Determination:

AZINPHOS-METHYL

SCHEDULE: 2001 , TESTIDCODE: 82686GCM35

Open Data Set

Plotted Points Statistics

AZINPHOS-METHYL

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	10	84%	21%	85%	20%
>= Reporting Level	61	78%	30%	72%	22%
Total	71	79%	29%	73%	22%

Sample Statistics

AZINPHOS-METHYL

Characteristic	N	%	% Basis
Plotted	71	100%	Spiked
Estimated Values	71	100%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 71
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

BENFLURALIN

SCHEDULE: 2001 , TESTIDCODE: 82673GCM35

Open Data Set

Plotted Points Statistics

BENFLURALIN

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	74	76%	14%	74%	15%
Total	74	76%	14%	74%	15%

Sample Statistics

BENFLURALIN

Characteristic	N	%	% Basis
Plotted	74	100%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	74	.
False Negatives	0	0%	0 out of 74
Not Spiked	46	.
False Positives	0	0%	0 out of 46

BQS OBSP Determination:

BUTYLATE

SCHEDULE: 2001 , TESTIDCODE: 04028GCM35

Open Data Set

Plotted Points Statistics

BUTYLATE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	117%	77%	106%	15%
Total	70	117%	77%	106%	15%

Sample Statistics

BUTYLATE

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	0	0%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

CARBARYL

SCHEDULE: 2001 , TESTIDCODE: 82680GCM35

Open Data Set

Plotted Points Statistics

CARBARYL

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	15	129%	42%	126%	47%
>= Reporting Level	56	87%	36%	85%	37%
Total	71	96%	41%	91%	45%

Sample Statistics

CARBARYL

Characteristic	N	%	% Basis
Plotted	71	100%	Spiked
Estimated Values	71	100%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 71
Not Spiked	59	.
False Positives	2	3%	2 out of 59

BQS OBSP Determination:

CARBOFURAN

SCHEDULE: 2001 , TESTIDCODE: 82674GCM35

Open Data Set

Plotted Points Statistics

CARBOFURAN

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	13	419%	500%	167%	69%
>= Reporting Level	58	150%	264%	99%	40%
Total	71	199%	332%	117%	48%

Sample Statistics

CARBOFURAN

Characteristic	N	%	% Basis
Plotted	71	100%	Spiked
Estimated Values	71	100%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 71
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

CHLORPYRIFOS

SCHEDULE: 2001 , TESTIDCODE: 38933GCM35

Open Data Set

Plotted Points Statistics

CHLORPYRIFOS

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	96%	67%	87%	23%
Total	70	96%	67%	87%	23%

Sample Statistics

CHLORPYRIFOS

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

CYANAZINE

SCHEDULE: 2001 , TESTIDCODE: 04041GCM35

Open Data Set

Plotted Points Statistics

CYANAZINE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	71	110%	32%	111%	30%
Total	71	110%	32%	111%	30%

Sample Statistics

CYANAZINE

Characteristic	N	%	% Basis
Plotted	71	100%	Spiked
Estimated Values	2	3%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 71
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

DACTHAL

SCHEDULE: 2001 , TESTIDCODE: 82682GCM35

Open Data Set

Plotted Points Statistics

DACTHAL

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	66	104%	21%	101%	13%
Total	66	104%	21%	101%	13%

Sample Statistics

DACTHAL

Characteristic	N	%	% Basis
Plotted	66	100%	Spiked
Estimated Values	3	5%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	66	.
False Negatives	0	0%	0 out of 66
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

DEETHYLATRAZINE (DESETHYL ATRAZINE) (2-CHLORO-4-ISOPROPYLAMINO-6-S-TRIAZINE) CIAT

SCHEDULE: 2001 , TESTIDCODE: 04040GCM35

Open Data Set

Plotted Points Statistics

DEETHYLATRAZINE (DESETHYL ATRAZINE) (2-CHLORO-4-ISOPROPYLAMINO-6-S-TRIAZINE) CIAT

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	64	66%	20%	66%	20%
Total	64	66%	20%	66%	20%

Sample Statistics

DEETHYLATRAZINE (DESETHYL ATRAZINE) (2-CHLORO-4-ISOPROPYLAMINO-6-S-TRIAZINE) CIAT

Characteristic	N	%	% Basis
Plotted	64	98%	Spiked
Estimated Values	64	98%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	65	.
False Negatives	1	2%	1 out of 65
Not Spiked	60	.
False Positives	1	2%	1 out of 60

BQS OBSP Determination:

DESULFINYLFIPRONIL

SCHEDULE: 2001 , TESTIDCODE: 62170GCM31

Open Data Set

Plotted Points Statistics

DESULFINYLFIPRONIL

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	26	87%	41%	95%	30%
Total	26	87%	41%	95%	30%

Sample Statistics

DESULFINYLFIPRONIL

Characteristic	N	%	% Basis
Plotted	26	100%	Spiked
Estimated Values	3	12%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	26	.
False Negatives	0	0%	0 out of 26
Not Spiked	104	.
False Positives	2	2%	2 out of 104

BQS OBSP Determination:

DESULFINYLFIPRONIL AMIDE

SCHEDULE: 2001 , TESTIDCODE: 62169GCM31

Open Data Set

Plotted Points Statistics

DESULFINYLFIPRONIL AMIDE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	10	121%	24%	127%	16%
Total	10	121%	24%	127%	16%

Sample Statistics

DESULFINYLFIPRONIL AMIDE

Characteristic	N	%	% Basis
Plotted	10	100%	Spiked
Estimated Values	10	100%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	10	.
False Negatives	0	0%	0 out of 10
Not Spiked	120	.
False Positives	1	1%	1 out of 120

BQS OBSP Determination:

DIAZINON

SCHEDULE: 2001 , TESTIDCODE: 39572GCM35

Open Data Set

Plotted Points Statistics

DIAZINON

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	101%	17%	97%	14%
Total	70	101%	17%	97%	14%

Sample Statistics

DIAZINON

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	2	3%	2 out of 60

BQS OBSP Determination:

DIELDRIN

SCHEDULE: 2001 , TESTIDCODE: 39381GCM35

Open Data Set

Plotted Points Statistics

DIELDRIN

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	98%	38%	90%	20%
Total	70	98%	38%	90%	20%

Sample Statistics

DIELDRIN

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	4	6%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

DISULFOTON

SCHEDULE: 2001 , TESTIDCODE: 82677GCM35

Open Data Set

Plotted Points Statistics

DISULFOTON

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	1	116%	.	116%	0%
>= Reporting Level	54	67%	26%	67%	24%
Total	55	68%	27%	68%	25%

Sample Statistics

DISULFOTON

Characteristic	N	%	% Basis
Plotted	55	89%	Spiked
Estimated Values	55	89%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	62	.
False Negatives	7	11%	7 out of 62
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

EPTC

SCHEDULE: 2001 , TESTIDCODE: 82668GCM35

Open Data Set

Plotted Points Statistics

EPTC

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	7	114%	14%	109%	14%
>= Reporting Level	63	107%	29%	104%	13%
Total	70	107%	28%	104%	12%

Sample Statistics

EPTC

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

ETHALFLURALIN

SCHEDULE: 2001 , TESTIDCODE: 82663GCM35

Open Data Set

Plotted Points Statistics

ETHALFLURALIN

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	90%	19%	85%	15%
Total	70	90%	19%	85%	15%

Sample Statistics

ETHALFLURALIN

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	0	0%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

ETHOPROPHOS

SCHEDULE: 2001 , TESTIDCODE: 82672GCM35

Open Data Set

Plotted Points Statistics

ETHOPROPHOS

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	72	111%	28%	108%	22%
Total	72	111%	28%	108%	22%

Sample Statistics

ETHOPROPHOS

Characteristic	N	%	% Basis
Plotted	72	97%	Spiked
Estimated Values	3	4%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	74	.
False Negatives	2	3%	2 out of 74
Not Spiked	56	.
False Positives	2	4%	2 out of 56

BQS OBSP Determination:

FIPRONIL

SCHEDULE: 2001 , TESTIDCODE: 62166GCM31

Open Data Set

Plotted Points Statistics

FIPRONIL

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	71	102%	33%	95%	22%
Total	71	102%	33%	95%	22%

Sample Statistics

FIPRONIL

Characteristic	N	%	% Basis
Plotted	71	100%	Spiked
Estimated Values	71	100%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 71
Not Spiked	50	.
False Positives	6	12%	6 out of 50

BQS OBSP Determination:

FIPRONIL SULFIDE

SCHEDULE: 2001 , TESTIDCODE: 62167GCM31

Open Data Set

Plotted Points Statistics

FIPRONIL SULFIDE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	72	92%	23%	92%	19%
Total	72	92%	23%	92%	19%

Sample Statistics

FIPRONIL SULFIDE

Characteristic	N	%	% Basis
Plotted	72	97%	Spiked
Estimated Values	5	7%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	74	.
False Negatives	2	3%	2 out of 74
Not Spiked	47	.
False Positives	11	23%	11 out of 47

BQS OBSP Determination:

FIPRONIL SULFONE

SCHEDULE: 2001 , TESTIDCODE: 62168GCM31

Open Data Set

Plotted Points Statistics

FIPRONIL SULFONE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	71	72%	22%	73%	20%
Total	71	72%	22%	73%	20%

Sample Statistics

FIPRONIL SULFONE

Characteristic	N	%	% Basis
Plotted	71	100%	Spiked
Estimated Values	7	10%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 71
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

FONOFOS

SCHEDULE: 2001 , TESTIDCODE: 04095GCM35

Open Data Set

Plotted Points Statistics

FONOFOS

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	3	108%	6%	111%	7%
>= Reporting Level	67	84%	29%	82%	22%
Total	70	85%	29%	84%	24%

Sample Statistics

FONOFOS

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	2	3%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

LINDANE

SCHEDULE: 2001 , TESTIDCODE: 39341GCM35

Open Data Set

Plotted Points Statistics

LINDANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	10	271%	453%	134%	25%
>= Reporting Level	64	107%	14%	105%	10%
Total	74	129%	169%	107%	11%

Sample Statistics

LINDANE

Characteristic	N	%	% Basis
Plotted	74	100%	Spiked
Estimated Values	7	9%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	74	.
False Negatives	0	0%	0 out of 74
Not Spiked	56	.
False Positives	0	0%	0 out of 56

BQS OBSP Determination:

LINURON

SCHEDULE: 2001 , TESTIDCODE: 82666GCM35

Open Data Set

Plotted Points Statistics

LINURON

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	10	133%	33%	140%	32%
>= Reporting Level	61	102%	38%	98%	34%
Total	71	106%	39%	101%	32%

Sample Statistics

LINURON

Characteristic	N	%	% Basis
Plotted	71	100%	Spiked
Estimated Values	7	10%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 71
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

MALATHION

SCHEDULE: 2001 , TESTIDCODE: 39532GCM35

Open Data Set

Plotted Points Statistics

MALATHION

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	74	111%	23%	112%	20%
Total	74	111%	23%	112%	20%

Sample Statistics

MALATHION

Characteristic	N	%	% Basis
Plotted	74	100%	Spiked
Estimated Values	2	3%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	74	.
False Negatives	0	0%	0 out of 74
Not Spiked	56	.
False Positives	1	2%	1 out of 56

BQS OBSP Determination:

METOLACHLOR

SCHEDULE: 2001 , TESTIDCODE: 39415GCM35

Open Data Set

Plotted Points Statistics

METOLACHLOR

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	72	99%	29%	99%	28%
Total	72	99%	29%	99%	28%

Sample Statistics

METOLACHLOR

Characteristic	N	%	% Basis
Plotted	72	100%	Spiked
Estimated Values	4	6%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	72	.
False Negatives	0	0%	0 out of 72
Not Spiked	58	.
False Positives	1	2%	1 out of 58

BQS OBSP Determination:

METRIBUZIN

SCHEDULE: 2001 , TESTIDCODE: 82630GCM35

Open Data Set

Plotted Points Statistics

METRIBUZIN

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	74	98%	15%	96%	15%
Total	74	98%	15%	96%	15%

Sample Statistics

METRIBUZIN

Characteristic	N	%	% Basis
Plotted	74	100%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	74	.
False Negatives	0	0%	0 out of 74
Not Spiked	56	.
False Positives	2	4%	2 out of 56

BQS OBSP Determination:

MOLINATE

SCHEDULE: 2001 , TESTIDCODE: 82671GCM35

Open Data Set

Plotted Points Statistics

MOLINATE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	69	117%	96%	104%	19%
Total	69	117%	96%	104%	19%

Sample Statistics

MOLINATE

Characteristic	N	%	% Basis
Plotted	69	99%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	1	1%	1 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

NAPROPAMIDE

SCHEDULE: 2001 , TESTIDCODE: 82684GCM35

Open Data Set

Plotted Points Statistics

NAPROPAMIDE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	74	92%	15%	89%	12%
Total	74	92%	15%	89%	12%

Sample Statistics

NAPROPAMIDE

Characteristic	N	%	% Basis
Plotted	74	100%	Spiked
Estimated Values	2	3%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	74	.
False Negatives	0	0%	0 out of 74
Not Spiked	56	.
False Positives	1	2%	1 out of 56

BQS OBSP Determination:

P,P'-DDE

SCHEDULE: 2001 , TESTIDCODE: 34653GCM35

Open Data Set

Plotted Points Statistics

P,P'-DDE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	83%	29%	78%	13%
Total	70	83%	29%	78%	13%

Sample Statistics

P,P'-DDE

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	2	3%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	1	2%	1 out of 60

BQS OBSP Determination:

PARATHION

SCHEDULE: 2001 , TESTIDCODE: 39542GCM35

Open Data Set

Plotted Points Statistics

PARATHION

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	95%	27%	95%	24%
Total	70	95%	27%	95%	24%

Sample Statistics

PARATHION

Characteristic	N	%	% Basis
Plotted	70	99%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	1	1%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 71
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

PARATHION-METHYL

SCHEDULE: 2001 , TESTIDCODE: 82667GCM35

Open Data Set

Plotted Points Statistics

PARATHION-METHYL

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	107%	80%	91%	27%
Total	70	107%	80%	91%	27%

Sample Statistics

PARATHION-METHYL

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	5	7%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	1	2%	1 out of 60

BQS OBSP Determination:

PEBULATE

SCHEDULE: 2001 , TESTIDCODE: 82669GCM35

Open Data Set

Plotted Points Statistics

PEBULATE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	74	106%	22%	104%	18%
Total	74	106%	22%	104%	18%

Sample Statistics

PEBULATE

Characteristic	N	%	% Basis
Plotted	74	100%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	74	.
False Negatives	0	0%	0 out of 74
Not Spiked	56	.
False Positives	1	2%	1 out of 56

BQS OBSP Determination:

PENDIMETHALIN

SCHEDULE: 2001 , TESTIDCODE: 82683GCM35

Open Data Set

Plotted Points Statistics

PENDIMETHALIN

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	77%	11%	77%	9%
Total	70	77%	11%	77%	9%

Sample Statistics

PENDIMETHALIN

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	4	6%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	1	2%	1 out of 60

BQS OBSP Determination:

PHORATE

SCHEDULE: 2001 , TESTIDCODE: 82664GCM35

Open Data Set

Plotted Points Statistics

PHORATE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	68	64%	26%	64%	24%
Total	68	64%	26%	64%	24%

Sample Statistics

PHORATE

Characteristic	N	%	% Basis
Plotted	68	96%	Spiked
Estimated Values	2	3%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	3	4%	3 out of 71
Not Spiked	59	.
False Positives	4	7%	4 out of 59

BQS OBSP Determination:

PROMETON

SCHEDULE: 2001 , TESTIDCODE: 04037GCM35

Open Data Set

Plotted Points Statistics

PROMETON

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	102%	37%	93%	20%
Total	70	102%	37%	93%	20%

Sample Statistics

PROMETON

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

PROPACHLOR

SCHEDULE: 2001 , TESTIDCODE: 04024GCM35

Open Data Set

Plotted Points Statistics

PROPACHLOR

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	111%	29%	104%	22%
Total	70	111%	29%	104%	22%

Sample Statistics

PROPACHLOR

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	0	0%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

PROPANIL

SCHEDULE: 2001 , TESTIDCODE: 82679GCM35

Open Data Set

Plotted Points Statistics

PROPANIL

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	74	120%	74%	108%	24%
Total	74	120%	74%	108%	24%

Sample Statistics

PROPANIL

Characteristic	N	%	% Basis
Plotted	74	100%	Spiked
Estimated Values	3	4%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	74	.
False Negatives	0	0%	0 out of 74
Not Spiked	56	.
False Positives	0	0%	0 out of 56

BQS OBSP Determination:

PROPARGITE

SCHEDULE: 2001 , TESTIDCODE: 82685GCM35

Open Data Set

Plotted Points Statistics

PROPARGITE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	71	112%	48%	98%	53%
Total	71	112%	48%	98%	53%

Sample Statistics

PROPARGITE

Characteristic	N	%	% Basis
Plotted	71	100%	Spiked
Estimated Values	9	13%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 71
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

PROPYZAMIDE (PRONAMIDE)

SCHEDULE: 2001 , TESTIDCODE: 82676GCM35

Open Data Set

Plotted Points Statistics

PROPYZAMIDE (PRONAMIDE)

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	64	120%	125%	101%	20%
Total	64	120%	125%	101%	20%

Sample Statistics

PROPYZAMIDE (PRONAMIDE)

Characteristic	N	%	% Basis
Plotted	64	100%	Spiked
Estimated Values	1	2%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	64	.
False Negatives	0	0%	0 out of 64
Not Spiked	60	.
False Positives	2	3%	2 out of 60

BQS OBSP Determination:

SIMAZINE

SCHEDULE: 2001 , TESTIDCODE: 04035GCM35

Open Data Set

Plotted Points Statistics

SIMAZINE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	6	99%	21%	99%	27%
>= Reporting Level	70	108%	23%	106%	23%
Total	76	107%	23%	106%	23%

Sample Statistics

SIMAZINE

Characteristic	N	%	% Basis
Plotted	76	100%	Spiked
Estimated Values	7	9%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	76	.
False Negatives	0	0%	0 out of 76
Not Spiked	54	.
False Positives	5	9%	5 out of 54

BQS OBSP Determination:

TEBUTHIURON

SCHEDULE: 2001 , TESTIDCODE: 82670GCM35

Open Data Set

Plotted Points Statistics

TEBUTHIURON

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	14	192%	51%	196%	59%
>= Reporting Level	57	168%	64%	163%	61%
Total	71	173%	62%	170%	61%

Sample Statistics

TEBUTHIURON

Characteristic	N	%	% Basis
Plotted	71	100%	Spiked
Estimated Values	18	25%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 71
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

TERBACIL

SCHEDULE: 2001 , TESTIDCODE: 82665GCM35

Open Data Set

Plotted Points Statistics

TERBACIL

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	95%	26%	98%	25%
Total	70	95%	26%	98%	25%

Sample Statistics

TERBACIL

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	70	100%	Spiked
Deleted Values	1	1%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	0	0%	0 out of 70
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

TERBUFOS

SCHEDULE: 2001 , TESTIDCODE: 82675GCM35

Open Data Set

Plotted Points Statistics

TERBUFOS

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	66	72%	26%	73%	24%
Total	66	72%	26%	73%	24%

Sample Statistics

TERBUFOS

Characteristic	N	%	% Basis
Plotted	66	93%	Spiked
Estimated Values	1	1%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	71	.
False Negatives	5	7%	5 out of 71
Not Spiked	59	.
False Positives	1	2%	1 out of 59

BQS OBSP Determination:

THIOBENCARB

SCHEDULE: 2001 , TESTIDCODE: 82681GCM35

Open Data Set

Plotted Points Statistics

THIOBENCARB

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	74	109%	21%	108%	20%
Total	74	109%	21%	108%	20%

Sample Statistics

THIOBENCARB

Characteristic	N	%	% Basis
Plotted	74	100%	Spiked
Estimated Values	0	0%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	74	.
False Negatives	0	0%	0 out of 74
Not Spiked	56	.
False Positives	2	4%	2 out of 56

BQS OBSP Determination:

TRI-ALLATE

SCHEDULE: 2001 , TESTIDCODE: 82678GCM35

Open Data Set

Plotted Points Statistics

TRI-ALLATE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	70	118%	120%	102%	27%
Total	70	118%	120%	102%	27%

Sample Statistics

TRI-ALLATE

Characteristic	N	%	% Basis
Plotted	70	100%	Spiked
Estimated Values	0	0%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	70	.
False Negatives	0	0%	0 out of 70
Not Spiked	60	.
False Positives	0	0%	0 out of 60

BQS OBSP Determination:

TRIFLURALIN

SCHEDULE: 2001 , TESTIDCODE: 82661GCM35

Open Data Set

Plotted Points Statistics

TRIFLURALIN

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	67	82%	24%	76%	20%
Total	67	82%	24%	76%	20%

Sample Statistics

TRIFLURALIN

Characteristic	N	%	% Basis
Plotted	67	100%	Spiked
Estimated Values	3	4%	Spiked
Deleted Values	0	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	67	.
False Negatives	0	0%	0 out of 67
Not Spiked	63	.
False Positives	0	0%	0 out of 63