OBSP Spike Level Charts

BQS OBSP Determination:

1,1,1,2-TETRACHLOROETHANE

METHOD: 2021 , TESTIDCODE: 77562GCM66

Plotted Points Statistics

1,1,1,2-TETRACHLOROETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	199	101%	13%	101%	11%
Total	199	101%	13%	101%	11%

Sample Statistics

1,1,1,2-TETRACHLOROETHANE

Characteristic	N	%	% Basis
Plotted	199	100%	Spiked
Estimated Values	32	16%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	226	.
False Negatives	0	0%	0 out of 199
Not Spiked	282	.
False Positives	1	0%	1 out of 276

BQS OBSP Determination:

1,1,1-TRICHLOROETHANE

METHOD: 2021 , TESTIDCODE: 34506GCM66

Open Data Set

Plotted Points Statistics

1,1,1-TRICHLOROETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	219	104%	15%	103%	12%
Total	219	104%	15%	103%	12%

Sample Statistics

1,1,1-TRICHLOROETHANE

Characteristic	N	%	% Basis
Plotted	219	100%	Spiked
Estimated Values	58	26%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	246	.
False Negatives	0	0%	0 out of 219
Not Spiked	262	.
False Positives	0	0%	0 out of 256

BQS OBSP Determination:

1,1,2,2-TETRACHLOROETHANE

METHOD: 2021 , TESTIDCODE: 34516GCM66

Open Data Set

Plotted Points Statistics

1,1,2,2-TETRACHLOROETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	18	106%	19%	103%	21%
>= Reporting Level	153	102%	15%	101%	13%
Total	171	102%	15%	101%	13%

Sample Statistics

1,1,2,2-TETRACHLOROETHANE

Characteristic	N	%	% Basis
Plotted	171	98%	Spiked
Estimated Values	16	9%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	2	1%	Spiked
Spiked	197	.
False Negatives	2	1%	2 out of 175
Not Spiked	311	.
False Positives	0	0%	0 out of 300

BQS OBSP Determination:

1,1,2-TRICHLOROETHANE

METHOD: 2021 , TESTIDCODE: 34511GCM66

Open Data Set

Plotted Points Statistics

1,1,2-TRICHLOROETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	4	114%	7%	115%	6%
>= Reporting Level	154	106%	14%	105%	12%
Total	158	106%	14%	105%	12%

Sample Statistics

1,1,2-TRICHLOROETHANE

Characteristic	N	%	% Basis
Plotted	158	100%	Spiked
Estimated Values	24	15%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	186	.
False Negatives	0	0%	0 out of 158
Not Spiked	322	.
False Positives	1	0%	1 out of 317

BQS OBSP Determination:

1,1,2-TRICHLOROTRIFLUOROETHANE

METHOD: 2021 , TESTIDCODE: 77652GCM66

Open Data Set

Plotted Points Statistics

1,1,2-TRICHLOROTRIFLUOROETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	4	102%	7%	104%	8%
>= Reporting Level	141	119%	164%	102%	16%
Total	145	118%	162%	102%	16%

Sample Statistics

1,1,2-TRICHLOROTRIFLUOROETHANE

Characteristic	N	%	% Basis
Plotted	145	100%	Spiked
Estimated Values	34	23%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	150	.
False Negatives	0	0%	0 out of 145
Not Spiked	358	.
False Positives	2	1%	2 out of 330

BQS OBSP Determination:

1,1-DICHLOROETHANE

METHOD: 2021 , TESTIDCODE: 34496GCM66

Open Data Set

Plotted Points Statistics

1,1-DICHLOROETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	8	109%	25%	119%	19%
>= Reporting Level	150	107%	12%	107%	10%
Total	158	107%	13%	108%	11%

Sample Statistics

1,1-DICHLOROETHANE

Characteristic	N	%	% Basis
Plotted	158	100%	Spiked
Estimated Values	22	14%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	186	.
False Negatives	0	0%	0 out of 158
Not Spiked	322	.
False Positives	1	0%	1 out of 317

BQS OBSP Determination:

1,1-DICHLOROETHYLENE

METHOD: 2021 , TESTIDCODE: 34501GCM66

Open Data Set

Plotted Points Statistics

1,1-DICHLOROETHYLENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	206	107%	82%	100%	15%
Total	206	107%	82%	100%	15%

Sample Statistics

1,1-DICHLOROETHYLENE

Characteristic	N	%	% Basis
Plotted	206	100%	Spiked
Estimated Values	52	25%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	234	.
False Negatives	1	0%	1 out of 207
Not Spiked	274	.
False Positives	0	0%	0 out of 268

BQS OBSP Determination:

1,1-DICHLOROPROPENE

METHOD: 2021 , TESTIDCODE: 77168GCM66

Open Data Set

Plotted Points Statistics

1,1-DICHLOROPROPENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	145	91%	13%	88%	10%
Total	145	91%	13%	88%	10%

Sample Statistics

1,1-DICHLOROPROPENE

Characteristic	N	%	% Basis
Plotted	145	100%	Spiked
Estimated Values	35	24%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	173	.
False Negatives	0	0%	0 out of 145
Not Spiked	335	.
False Positives	0	0%	0 out of 330

BQS OBSP Determination:

1,2,3,4-TETRAMETHYLBENZENE

METHOD: 2021 , TESTIDCODE: 49999GCM66

Open Data Set

Plotted Points Statistics

1,2,3,4-TETRAMETHYLBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	105%	47%	108%	33%
>= Reporting Level	109	86%	13%	84%	12%
Total	114	87%	16%	84%	12%

Sample Statistics

1,2,3,4-TETRAMETHYLBENZENE

Characteristic	N	%	% Basis
Plotted	114	100%	Spiked
Estimated Values	5	4%	Spiked
Deleted Values	33	7%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	119	.
False Negatives	0	0%	0 out of 114
Not Spiked	383	.
False Positives	0	0%	0 out of 355

BQS OBSP Determination:

1,2,3,5-TETRAMETHYLBENZENE

METHOD: 2021 , TESTIDCODE: 50000GCM66

Open Data Set

Plotted Points Statistics

1,2,3,5-TETRAMETHYLBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	4	89%	26%	78%	24%
>= Reporting Level	116	86%	16%	85%	13%
Total	120	86%	16%	85%	13%

Sample Statistics

1,2,3,5-TETRAMETHYLBENZENE

Characteristic	N	%	% Basis
Plotted	120	100%	Spiked
Estimated Values	7	6%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	125	.
False Negatives	0	0%	0 out of 120
Not Spiked	383	.
False Positives	2	1%	2 out of 355

BQS OBSP Determination:

1,2,3-TRICHLOROBENZENE

METHOD: 2021 , TESTIDCODE: 77613GCM66

Open Data Set

Plotted Points Statistics

1,2,3-TRICHLOROBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	14	92%	28%	87%	28%
>= Reporting Level	125	89%	10%	88%	9%
Total	139	90%	13%	88%	10%

Sample Statistics

1,2,3-TRICHLOROBENZENE

Characteristic	N	%	% Basis
Plotted	139	95%	Spiked
Estimated Values	18	12%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	7	5%	Spiked
Spiked	168	.
False Negatives	0	0%	0 out of 146
Not Spiked	340	.
False Positives	1	0%	1 out of 329

BQS OBSP Determination:

1,2,3-TRICHLOROPROPANE

METHOD: 2021 , TESTIDCODE: 77443GCM66

Open Data Set

Plotted Points Statistics

1,2,3-TRICHLOROPROPANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	23	102%	13%	103%	14%
>= Reporting Level	178	100%	13%	99%	10%
Total	201	100%	13%	99%	10%

Sample Statistics

1,2,3-TRICHLOROPROPANE

Characteristic	N	%	% Basis
Plotted	201	88%	Spiked
Estimated Values	24	11%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	24	11%	Spiked
Spiked	261	.
False Negatives	3	1%	3 out of 228
Not Spiked	247	.
False Positives	0	0%	0 out of 247

BQS OBSP Determination:

1,2,3-TRIMETHYLBENZENE

METHOD: 2021 , TESTIDCODE: 77221GCM66

Open Data Set

Plotted Points Statistics

1,2,3-TRIMETHYLBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	95%	20%	84%	19%
>= Reporting Level	118	87%	18%	85%	15%
Total	123	88%	18%	85%	15%

Sample Statistics

1,2,3-TRIMETHYLBENZENE

Characteristic	N	%	% Basis
Plotted	123	100%	Spiked
Estimated Values	14	11%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	128	.
False Negatives	0	0%	0 out of 123
Not Spiked	380	.
False Positives	1	0%	1 out of 352

BQS OBSP Determination:

1,2,4-TRICHLOROBENZENE

METHOD: 2021 , TESTIDCODE: 34551GCM66

Open Data Set

Plotted Points Statistics

1,2,4-TRICHLOROBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	14	94%	29%	95%	34%
>= Reporting Level	118	88%	10%	89%	11%
Total	132	89%	13%	89%	11%

Sample Statistics

1,2,4-TRICHLOROBENZENE

Characteristic	N	%	% Basis
Plotted	132	98%	Spiked
Estimated Values	20	15%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	3	2%	Spiked
Spiked	163	.
False Negatives	0	0%	0 out of 135
Not Spiked	345	.
False Positives	1	0%	1 out of 340

BQS OBSP Determination:

1,2,4-TRIMETHYLBENZENE

METHOD: 2021 , TESTIDCODE: 77222GCM66

Open Data Set

Plotted Points Statistics

1,2,4-TRIMETHYLBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	9	102%	42%	85%	39%
>= Reporting Level	135	87%	14%	85%	14%
Total	144	88%	17%	85%	14%

Sample Statistics

1,2,4-TRIMETHYLBENZENE

Characteristic	N	%	% Basis
Plotted	144	99%	Spiked
Estimated Values	33	23%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	1	1%	Spiked
Spiked	167	.
False Negatives	0	0%	0 out of 145
Not Spiked	341	.
False Positives	1	0%	1 out of 330

BQS OBSP Determination:

1,2-DIBROMO-3-CHLOROPROPANE

METHOD: 2021 , TESTIDCODE: 82625GCM66

Open Data Set

Plotted Points Statistics

1,2-DIBROMO-3-CHLOROPROPANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	23	91%	14%	94%	13%
>= Reporting Level	158	90%	14%	90%	14%
Total	181	90%	14%	90%	13%

Sample Statistics

1,2-DIBROMO-3-CHLOROPROPANE

Characteristic	N	%	% Basis
Plotted	181	84%	Spiked
Estimated Values	33	15%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	33	15%	Spiked
Spiked	248	.
False Negatives	1	0%	1 out of 215
Not Spiked	260	.
False Positives	0	0%	0 out of 260

BQS OBSP Determination:

1,2-DIBROMOETHANE

METHOD: 2021 , TESTIDCODE: 77651GCM66

Open Data Set

Plotted Points Statistics

1,2-DIBROMOETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	9	103%	15%	104%	20%
>= Reporting Level	179	97%	15%	97%	11%
Total	188	97%	15%	97%	12%

Sample Statistics

1,2-DIBROMOETHANE

Characteristic	N	%	% Basis
Plotted	188	98%	Spiked
Estimated Values	65	34%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	2	1%	Spiked
Spiked	218	.
False Negatives	1	1%	1 out of 191
Not Spiked	290	.
False Positives	0	0%	0 out of 284

BQS OBSP Determination:

1,2-DICHLOROBENZENE

METHOD: 2021 , TESTIDCODE: 34536GCM66

Open Data Set

Plotted Points Statistics

1,2-DICHLOROBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	4	106%	5%	104%	6%
>= Reporting Level	210	96%	12%	95%	9%
Total	214	96%	12%	95%	9%

Sample Statistics

1,2-DICHLOROBENZENE

Characteristic	N	%	% Basis
Plotted	214	100%	Spiked
Estimated Values	61	29%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	236	.
False Negatives	0	0%	0 out of 214
Not Spiked	272	.
False Positives	0	0%	0 out of 261

BQS OBSP Determination:

1,2-DICHLOROETHANE

METHOD: 2021 , TESTIDCODE: 32103GCM66

Open Data Set

Plotted Points Statistics

1,2-DICHLOROETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	28	104%	18%	107%	18%
>= Reporting Level	182	110%	13%	108%	14%
Total	210	109%	14%	108%	13%

Sample Statistics

1,2-DICHLOROETHANE

Characteristic	N	%	% Basis
Plotted	210	93%	Spiked
Estimated Values	27	12%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	14	6%	Spiked
Spiked	258	.
False Negatives	1	0%	1 out of 225
Not Spiked	250	.
False Positives	1	0%	1 out of 250

BQS OBSP Determination:

1,2-DICHLOROPROPANE

METHOD: 2021 , TESTIDCODE: 34541GCM66

Open Data Set

Plotted Points Statistics

1,2-DICHLOROPROPANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	7	102%	7%	101%	10%
>= Reporting Level	236	103%	13%	103%	12%
Total	243	103%	13%	103%	12%

Sample Statistics

1,2-DICHLOROPROPANE

Characteristic	N	%	% Basis
Plotted	243	100%	Spiked
Estimated Values	65	27%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	270	.
False Negatives	0	0%	0 out of 243
Not Spiked	238	.
False Positives	0	0%	0 out of 232

BQS OBSP Determination:

1,3,5-TRIMETHYLBENZENE

METHOD: 2021 , TESTIDCODE: 77226GCM66

Open Data Set

Plotted Points Statistics

1,3,5-TRIMETHYLBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	4	90%	23%	85%	28%
>= Reporting Level	137	88%	15%	88%	13%
Total	141	88%	15%	88%	14%

Sample Statistics

1,3,5-TRIMETHYLBENZENE

Characteristic	N	%	% Basis
Plotted	141	99%	Spiked
Estimated Values	35	24%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	2	1%	Spiked
Spiked	171	.
False Negatives	0	0%	0 out of 143
Not Spiked	337	.
False Positives	0	0%	0 out of 332

BQS OBSP Determination:

1,3-DICHLOROBENZENE

METHOD: 2021 , TESTIDCODE: 34566GCM66

Open Data Set

Plotted Points Statistics

1,3-DICHLOROBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	4	82%	26%	92%	22%
>= Reporting Level	169	94%	11%	92%	9%
Total	173	93%	12%	92%	9%

Sample Statistics

1,3-DICHLOROBENZENE

Characteristic	N	%	% Basis
Plotted	173	100%	Spiked
Estimated Values	47	27%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	201	.
False Negatives	0	0%	0 out of 173
Not Spiked	307	.
False Positives	0	0%	0 out of 302

BQS OBSP Determination:

1,3-DICHLOROPROPANE

METHOD: 2021 , TESTIDCODE: 77173GCM66

Open Data Set

Plotted Points Statistics

1,3-DICHLOROPROPANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	12	100%	8%	98%	7%
>= Reporting Level	146	103%	13%	103%	11%
Total	158	103%	12%	102%	10%

Sample Statistics

1,3-DICHLOROPROPANE

Characteristic	N	%	% Basis
Plotted	158	96%	Spiked
Estimated Values	23	14%	Spiked
Deleted Values	33	7%	Spiked + Not Spiked
Spiked, Censored	6	4%	Spiked
Spiked	192	.
False Negatives	0	0%	0 out of 164
Not Spiked	315	.
False Positives	1	0%	1 out of 310

BQS OBSP Determination:

1,4-DICHLOROBENZENE

METHOD: 2021 , TESTIDCODE: 34571GCM66

Open Data Set

Plotted Points Statistics

1,4-DICHLOROBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	83%	20%	91%	2%
>= Reporting Level	216	89%	14%	90%	12%
Total	221	89%	14%	90%	12%

Sample Statistics

1,4-DICHLOROBENZENE

Characteristic	N	%	% Basis
Plotted	221	100%	Spiked
Estimated Values	56	25%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	248	.
False Negatives	0	0%	0 out of 221
Not Spiked	260	.
False Positives	2	1%	2 out of 254

BQS OBSP Determination:

2,2-DICHLOROPROPANE

METHOD: 2021 , TESTIDCODE: 77170GCM66

Open Data Set

Plotted Points Statistics

2,2-DICHLOROPROPANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	1	37%	.	37%	0%
>= Reporting Level	130	86%	13%	84%	12%
Total	131	85%	13%	84%	12%

Sample Statistics

2,2-DICHLOROPROPANE

Characteristic	N	%	% Basis
Plotted	131	100%	Spiked
Estimated Values	26	20%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	159	.
False Negatives	0	0%	0 out of 131
Not Spiked	349	.
False Positives	1	0%	1 out of 344

BQS OBSP Determination:

2-BUTANONE

METHOD: 2021 , TESTIDCODE: 81595GCM66

Open Data Set

Plotted Points Statistics

2-BUTANONE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	122%	22%	122%	27%
>= Reporting Level	132	106%	24%	104%	10%
Total	137	106%	24%	104%	10%

Sample Statistics

2-BUTANONE

Characteristic	N	%	% Basis
Plotted	137	85%	Spiked
Estimated Values	4	2%	Spiked
Deleted Values	33	7%	Spiked + Not Spiked
Spiked, Censored	24	15%	Spiked
Spiked	178	.
False Negatives	0	0%	0 out of 161
Not Spiked	329	.
False Positives	3	1%	3 out of 313

BQS OBSP Determination:

2-CHLOROTOLUENE

METHOD: 2021 , TESTIDCODE: 77275GCM66

Open Data Set

Plotted Points Statistics

2-CHLOROTOLUENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	13	106%	24%	102%	23%
>= Reporting Level	225	94%	15%	94%	14%
Total	238	94%	16%	94%	14%

Sample Statistics

2-CHLOROTOLUENE

Characteristic	N	%	% Basis
Plotted	238	100%	Spiked
Estimated Values	68	29%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	265	.
False Negatives	0	0%	0 out of 238
Not Spiked	243	.
False Positives	1	0%	1 out of 237

BQS OBSP Determination:

2-HEXANONE

METHOD: 2021 , TESTIDCODE: 77103GCM66

Open Data Set

Plotted Points Statistics

2-HEXANONE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	8	122%	38%	129%	31%
>= Reporting Level	132	97%	13%	98%	11%
Total	140	99%	16%	98%	13%

Sample Statistics

2-HEXANONE

Characteristic	N	%	% Basis
Plotted	140	89%	Spiked
Estimated Values	44	28%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	16	10%	Spiked
Spiked	164	.
False Negatives	2	1%	2 out of 158
Not Spiked	344	.
False Positives	0	0%	0 out of 317

BQS OBSP Determination:

3-CHLOROPROPENE

METHOD: 2021 , TESTIDCODE: 78109GCM66

Open Data Set

Plotted Points Statistics

3-CHLOROPROPENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	109%	10%	108%	9%
>= Reporting Level	120	100%	11%	99%	10%
Total	125	101%	11%	99%	10%

Sample Statistics

3-CHLOROPROPENE

Characteristic	N	%	% Basis
Plotted	125	98%	Spiked
Estimated Values	125	98%	Spiked
Deleted Values	33	7%	Spiked + Not Spiked
Spiked, Censored	1	1%	Spiked
Spiked	132	.
False Negatives	1	1%	1 out of 127
Not Spiked	365	.
False Positives	1	0%	1 out of 337

BQS OBSP Determination:

4-CHLOROTOLUENE

METHOD: 2021 , TESTIDCODE: 77277GCM66

Open Data Set

Plotted Points Statistics

4-CHLOROTOLUENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	7	82%	18%	87%	14%
>= Reporting Level	149	91%	15%	90%	15%
Total	156	91%	15%	90%	15%

Sample Statistics

4-CHLOROTOLUENE

Characteristic	N	%	% Basis
Plotted	156	100%	Spiked
Estimated Values	39	25%	Spiked
Deleted Values	1	0%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	157	.
False Negatives	0	0%	0 out of 156
Not Spiked	319	.
False Positives	1	0%	1 out of 319

BQS OBSP Determination:

4-ISOPROPYL-1-METHYLBENZENE (CYMENE)

METHOD: 2021 , TESTIDCODE: 77356GCM66

Open Data Set

Plotted Points Statistics

4-ISOPROPYL-1-METHYLBENZENE (CYMENE)

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	79%	31%	77%	22%
>= Reporting Level	132	83%	17%	79%	17%
Total	137	83%	17%	79%	17%

Sample Statistics

4-ISOPROPYL-1-METHYLBENZENE (CYMENE)

Characteristic	N	%	% Basis
Plotted	137	100%	Spiked
Estimated Values	16	12%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	165	.
False Negatives	0	0%	0 out of 137
Not Spiked	343	.
False Positives	1	0%	1 out of 338

BQS OBSP Determination:

4-METHYL-2-PENTANONE

METHOD: 2021 , TESTIDCODE: 78133GCM66

Open Data Set

Plotted Points Statistics

4-METHYL-2-PENTANONE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	9	104%	34%	105%	40%
>= Reporting Level	134	99%	13%	98%	13%
Total	143	99%	15%	98%	13%

Sample Statistics

4-METHYL-2-PENTANONE

Characteristic	N	%	% Basis
Plotted	143	93%	Spiked
Estimated Values	57	37%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	9	6%	Spiked
Spiked	165	.
False Negatives	2	1%	2 out of 154
Not Spiked	343	.
False Positives	0	0%	0 out of 321

BQS OBSP Determination:

ACETONE

METHOD: 2021 , TESTIDCODE: 81552GCM66

Open Data Set

Plotted Points Statistics

ACETONE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	3	90%	16%	97%	22%
>= Reporting Level	156	114%	23%	110%	18%
Total	159	114%	23%	109%	18%

Sample Statistics

ACETONE

Characteristic	N	%	% Basis
Plotted	159	92%	Spiked
Estimated Values	4	2%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	13	8%	Spiked
Spiked	177	.
False Negatives	0	0%	0 out of 172
Not Spiked	331	.
False Positives	7	2%	7 out of 303

BQS OBSP Determination:

ACROLEIN

METHOD: 2021 , TESTIDCODE: 34210GCM66

Open Data Set

Sample Statistics

ACROLEIN

Characteristic	N	%	% Basis
Plotted	0	.	Spiked
Estimated Values	0	.	Spiked
Deleted Values	21	100%	Spiked + Not Spiked
Spiked, Censored	0	.	Spiked
Spiked	2	.
False Negatives	0	.	0 out of 0
Not Spiked	19	.
False Positives	0	.	0 out of 0

BQS OBSP Determination:

ACRYLONITRILE

METHOD: 2021 , TESTIDCODE: 34215GCM66

Open Data Set

Plotted Points Statistics

ACRYLONITRILE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	15	111%	19%	116%	20%
>= Reporting Level	132	104%	13%	102%	9%
Total	147	105%	14%	103%	11%

Sample Statistics

ACRYLONITRILE

Characteristic	N	%	% Basis
Plotted	147	91%	Spiked
Estimated Values	17	10%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	15	9%	Spiked
Spiked	167	.
False Negatives	0	0%	0 out of 162
Not Spiked	341	.
False Positives	0	0%	0 out of 313

BQS OBSP Determination:

BENZENE

METHOD: 2021 , TESTIDCODE: 34030GCM66

Open Data Set

Plotted Points Statistics

BENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	3	90%	29%	107%	38%
>= Reporting Level	245	101%	10%	102%	9%
Total	248	101%	11%	102%	9%

Sample Statistics

BENZENE

Characteristic	N	%	% Basis
Plotted	248	100%	Spiked
Estimated Values	75	30%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	276	.
False Negatives	0	0%	0 out of 248
Not Spiked	232	.
False Positives	6	3%	6 out of 227

BQS OBSP Determination:

BROMOBENZENE

METHOD: 2021 , TESTIDCODE: 81555GCM66

Open Data Set

Plotted Points Statistics

BROMOBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	139	94%	11%	95%	10%
Total	139	94%	11%	95%	10%

Sample Statistics

BROMOBENZENE

Characteristic	N	%	% Basis
Plotted	139	100%	Spiked
Estimated Values	33	24%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	167	.
False Negatives	0	0%	0 out of 139
Not Spiked	341	.
False Positives	0	0%	0 out of 336

BQS OBSP Determination:

BROMOCHLOROMETHANE

METHOD: 2021 , TESTIDCODE: 77297GCM66

Open Data Set

Plotted Points Statistics

BROMOCHLOROMETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	130	105%	13%	105%	12%
Total	130	105%	13%	105%	12%

Sample Statistics

BROMOCHLOROMETHANE

Characteristic	N	%	% Basis
Plotted	130	100%	Spiked
Estimated Values	16	12%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	152	.
False Negatives	0	0%	0 out of 130
Not Spiked	356	.
False Positives	1	0%	1 out of 345

BQS OBSP Determination:

BROMODICHLOROMETHANE

METHOD: 2021 , TESTIDCODE: 32101GCM66

Open Data Set

Plotted Points Statistics

BROMODICHLOROMETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	94%	24%	105%	8%
>= Reporting Level	202	103%	15%	103%	14%
Total	207	103%	15%	103%	14%

Sample Statistics

BROMODICHLOROMETHANE

Characteristic	N	%	% Basis
Plotted	207	100%	Spiked
Estimated Values	28	14%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	234	.
False Negatives	0	0%	0 out of 207
Not Spiked	274	.
False Positives	0	0%	0 out of 268

BQS OBSP Determination:

BROMOETHENE

METHOD: 2021 , TESTIDCODE: 50002GCM66

Open Data Set

Plotted Points Statistics

BROMOETHENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	4	103%	4%	103%	4%
>= Reporting Level	113	113%	19%	110%	13%
Total	117	113%	19%	109%	13%

Sample Statistics

BROMOETHENE

Characteristic	N	%	% Basis
Plotted	117	99%	Spiked
Estimated Values	7	6%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	123	.
False Negatives	1	1%	1 out of 118
Not Spiked	385	.
False Positives	0	0%	0 out of 357

BQS OBSP Determination:

BROMOFORM

METHOD: 2021 , TESTIDCODE: 32104GCM66

Open Data Set

Plotted Points Statistics

BROMOFORM

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	18	110%	37%	102%	19%
>= Reporting Level	185	104%	19%	101%	15%
Total	203	104%	21%	101%	15%

Sample Statistics

BROMOFORM

Characteristic	N	%	% Basis
Plotted	203	97%	Spiked
Estimated Values	33	16%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	2	1%	Spiked
Spiked	237	.
False Negatives	5	2%	5 out of 210
Not Spiked	271	.
False Positives	1	0%	1 out of 265

BQS OBSP Determination:

BROMOMETHANE

METHOD: 2021 , TESTIDCODE: 34413GCM66

Open Data Set

Plotted Points Statistics

BROMOMETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	8	120%	26%	116%	32%
>= Reporting Level	127	114%	29%	115%	23%
Total	135	115%	29%	115%	23%

Sample Statistics

BROMOMETHANE

Characteristic	N	%	% Basis
Plotted	135	92%	Spiked
Estimated Values	135	92%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	12	8%	Spiked
Spiked	169	.
False Negatives	0	0%	0 out of 147
Not Spiked	339	.
False Positives	14	4%	14 out of 328

BQS OBSP Determination:

BUTYLBENZENE

METHOD: 2021 , TESTIDCODE: 77342GCM66

Open Data Set

Plotted Points Statistics

BUTYLBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	17	88%	25%	87%	25%
>= Reporting Level	129	81%	15%	79%	14%
Total	146	82%	17%	79%	15%

Sample Statistics

BUTYLBENZENE

Characteristic	N	%	% Basis
Plotted	146	100%	Spiked
Estimated Values	21	14%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	174	.
False Negatives	0	0%	0 out of 146
Not Spiked	334	.
False Positives	1	0%	1 out of 329

BQS OBSP Determination:

CARBON DISULFIDE

METHOD: 2021 , TESTIDCODE: 77041GCM66

Open Data Set

Plotted Points Statistics

CARBON DISULFIDE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	7	92%	26%	98%	20%
>= Reporting Level	150	104%	30%	100%	20%
Total	157	103%	30%	100%	20%

Sample Statistics

CARBON DISULFIDE

Characteristic	N	%	% Basis
Plotted	157	100%	Spiked
Estimated Values	58	37%	Spiked
Deleted Values	33	7%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	168	.
False Negatives	0	0%	0 out of 157
Not Spiked	333	.
False Positives	13	4%	13 out of 311

BQS OBSP Determination:

CHLOROBENZENE

METHOD: 2021 , TESTIDCODE: 34301GCM66

Open Data Set

Plotted Points Statistics

CHLOROBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	243	98%	11%	97%	9%
Total	243	98%	11%	97%	9%

Sample Statistics

CHLOROBENZENE

Characteristic	N	%	% Basis
Plotted	243	100%	Spiked
Estimated Values	74	30%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	276	.
False Negatives	0	0%	0 out of 243
Not Spiked	232	.
False Positives	0	0%	0 out of 232

BQS OBSP Determination:

CHLOROETHANE

METHOD: 2021 , TESTIDCODE: 34311GCM66

Open Data Set

Plotted Points Statistics

CHLOROETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	11	103%	22%	112%	15%
>= Reporting Level	160	113%	19%	111%	19%
Total	171	112%	19%	111%	19%

Sample Statistics

CHLOROETHANE

Characteristic	N	%	% Basis
Plotted	171	98%	Spiked
Estimated Values	14	8%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	3	2%	Spiked
Spiked	196	.
False Negatives	0	0%	0 out of 174
Not Spiked	312	.
False Positives	1	0%	1 out of 301

BQS OBSP Determination:

CHLOROFORM

METHOD: 2021 , TESTIDCODE: 32106GCM66

Open Data Set

Plotted Points Statistics

CHLOROFORM

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	4	98%	27%	107%	28%
>= Reporting Level	239	109%	13%	109%	12%
Total	243	109%	14%	109%	12%

Sample Statistics

CHLOROFORM

Characteristic	N	%	% Basis
Plotted	243	100%	Spiked
Estimated Values	59	24%	Spiked
Deleted Values	33	7%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	276	.
False Negatives	0	0%	0 out of 243
Not Spiked	226	.
False Positives	2	1%	2 out of 226

BQS OBSP Determination:

CHLOROMETHANE

METHOD: 2021 , TESTIDCODE: 34418GCM66

Open Data Set

Plotted Points Statistics

CHLOROMETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	16	112%	30%	109%	17%
>= Reporting Level	147	120%	21%	118%	20%
Total	163	119%	22%	118%	20%

Sample Statistics

CHLOROMETHANE

Characteristic	N	%	% Basis
Plotted	163	98%	Spiked
Estimated Values	163	98%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	4	2%	Spiked
Spiked	189	.
False Negatives	0	0%	0 out of 167
Not Spiked	319	.
False Positives	6	2%	6 out of 308

BQS OBSP Determination:

CIS-1,2-DICHLOROETHYLENE

METHOD: 2021 , TESTIDCODE: 77093GCM66

Open Data Set

Plotted Points Statistics

CIS-1,2-DICHLOROETHYLENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	3	100%	30%	94%	44%
>= Reporting Level	173	100%	13%	100%	11%
Total	176	100%	14%	100%	11%

Sample Statistics

CIS-1,2-DICHLOROETHYLENE

Characteristic	N	%	% Basis
Plotted	176	98%	Spiked
Estimated Values	52	29%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	4	2%	Spiked
Spiked	207	.
False Negatives	0	0%	0 out of 180
Not Spiked	301	.
False Positives	1	0%	1 out of 295

BQS OBSP Determination:

CIS-1,3-DICHLOROPROPENE

METHOD: 2021 , TESTIDCODE: 34704GCM66

Open Data Set

Plotted Points Statistics

CIS-1,3-DICHLOROPROPENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	14	98%	29%	91%	36%
>= Reporting Level	128	92%	15%	90%	14%
Total	142	93%	17%	90%	14%

Sample Statistics

CIS-1,3-DICHLOROPROPENE

Characteristic	N	%	% Basis
Plotted	142	100%	Spiked
Estimated Values	17	12%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	164	.
False Negatives	0	0%	0 out of 142
Not Spiked	344	.
False Positives	1	0%	1 out of 333

BQS OBSP Determination:

DIBROMOCHLOROMETHANE

METHOD: 2021 , TESTIDCODE: 32105GCM66

Open Data Set

Plotted Points Statistics

DIBROMOCHLOROMETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	43	93%	15%	92%	15%
>= Reporting Level	177	101%	13%	101%	12%
Total	220	100%	14%	99%	12%

Sample Statistics

DIBROMOCHLOROMETHANE

Characteristic	N	%	% Basis
Plotted	220	99%	Spiked
Estimated Values	43	19%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	2	1%	Spiked
Spiked	249	.
False Negatives	0	0%	0 out of 222
Not Spiked	259	.
False Positives	0	0%	0 out of 253

BQS OBSP Determination:

DIBROMOMETHANE

METHOD: 2021 , TESTIDCODE: 30217GCM66

Open Data Set

Plotted Points Statistics

DIBROMOMETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	9	108%	24%	112%	14%
>= Reporting Level	120	104%	14%	104%	11%
Total	129	104%	15%	104%	12%

Sample Statistics

DIBROMOMETHANE

Characteristic	N	%	% Basis
Plotted	129	96%	Spiked
Estimated Values	19	14%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	5	4%	Spiked
Spiked	162	.
False Negatives	0	0%	0 out of 134
Not Spiked	346	.
False Positives	1	0%	1 out of 341

BQS OBSP Determination:

DICHLORODIFLUOROMETHANE

METHOD: 2021 , TESTIDCODE: 34668GCM66

Open Data Set

Plotted Points Statistics

DICHLORODIFLUOROMETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	17	128%	30%	126%	24%
>= Reporting Level	124	110%	30%	103%	28%
Total	141	112%	31%	108%	30%

Sample Statistics

DICHLORODIFLUOROMETHANE

Characteristic	N	%	% Basis
Plotted	141	100%	Spiked
Estimated Values	141	100%	Spiked
Deleted Values	32	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	162	.
False Negatives	0	0%	0 out of 141
Not Spiked	339	.
False Positives	0	0%	0 out of 328

BQS OBSP Determination:

DICHLOROMETHANE

METHOD: 2021 , TESTIDCODE: 34423GCM66

Open Data Set

Plotted Points Statistics

DICHLOROMETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	27	138%	60%	119%	40%
>= Reporting Level	168	148%	113%	115%	24%
Total	195	146%	107%	116%	25%

Sample Statistics

DICHLOROMETHANE

Characteristic	N	%	% Basis
Plotted	195	100%	Spiked
Estimated Values	30	15%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	218	.
False Negatives	0	0%	0 out of 195
Not Spiked	290	.
False Positives	42	15%	42 out of 280

BQS OBSP Determination:

DIETHYL ETHER

METHOD: 2021 , TESTIDCODE: 81576GCM66

Open Data Set

Plotted Points Statistics

DIETHYL ETHER

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	9	92%	15%	99%	16%
>= Reporting Level	110	108%	13%	108%	11%
Total	119	107%	14%	107%	11%

Sample Statistics

DIETHYL ETHER

Characteristic	N	%	% Basis
Plotted	119	100%	Spiked
Estimated Values	9	8%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	124	.
False Negatives	0	0%	0 out of 119
Not Spiked	384	.
False Positives	0	0%	0 out of 356

BQS OBSP Determination:

DIISOPROPYL ETHER

METHOD: 2021 , TESTIDCODE: 81577GCM66

Open Data Set

Plotted Points Statistics

DIISOPROPYL ETHER

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	101%	27%	114%	21%
>= Reporting Level	114	100%	14%	99%	12%
Total	119	100%	14%	99%	13%

Sample Statistics

DIISOPROPYL ETHER

Characteristic	N	%	% Basis
Plotted	119	100%	Spiked
Estimated Values	7	6%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	124	.
False Negatives	0	0%	0 out of 119
Not Spiked	384	.
False Positives	1	0%	1 out of 356

BQS OBSP Determination:

ETHYLBENZENE

METHOD: 2021 , TESTIDCODE: 34371GCM66

Open Data Set

Plotted Points Statistics

ETHYLBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	248	93%	13%	93%	11%
Total	248	93%	13%	93%	11%

Sample Statistics

ETHYLBENZENE

Characteristic	N	%	% Basis
Plotted	248	100%	Spiked
Estimated Values	73	29%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	281	.
False Negatives	0	0%	0 out of 248
Not Spiked	227	.
False Positives	0	0%	0 out of 227

BQS OBSP Determination:

ETHYL METHACRYLATE

METHOD: 2021 , TESTIDCODE: 73570GCM66

Open Data Set

Plotted Points Statistics

ETHYL METHACRYLATE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	3	68%	16%	70%	24%
>= Reporting Level	138	92%	12%	90%	10%
Total	141	91%	12%	90%	11%

Sample Statistics

ETHYL METHACRYLATE

Characteristic	N	%	% Basis
Plotted	141	94%	Spiked
Estimated Values	11	7%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	5	3%	Spiked
Spiked	155	.
False Negatives	4	3%	4 out of 150
Not Spiked	353	.
False Positives	0	0%	0 out of 325

BQS OBSP Determination:

ETHYL TERT-BUTYL ETHER

METHOD: 2021 , TESTIDCODE: 50004GCM66

Open Data Set

Plotted Points Statistics

ETHYL TERT-BUTYL ETHER

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	85%	23%	91%	17%
>= Reporting Level	121	97%	11%	96%	10%
Total	126	96%	11%	96%	10%

Sample Statistics

ETHYL TERT-BUTYL ETHER

Characteristic	N	%	% Basis
Plotted	126	100%	Spiked
Estimated Values	25	20%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	131	.
False Negatives	0	0%	0 out of 126
Not Spiked	377	.
False Positives	0	0%	0 out of 349

BQS OBSP Determination:

HEXACHLOROBUTADIENE

METHOD: 2021 , TESTIDCODE: 39702GCM66

Open Data Set

Plotted Points Statistics

HEXACHLOROBUTADIENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	13	101%	32%	103%	16%
>= Reporting Level	116	90%	11%	90%	11%
Total	129	92%	15%	90%	12%

Sample Statistics

HEXACHLOROBUTADIENE

Characteristic	N	%	% Basis
Plotted	129	99%	Spiked
Estimated Values	14	11%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	1	1%	Spiked
Spiked	152	.
False Negatives	0	0%	0 out of 130
Not Spiked	356	.
False Positives	1	0%	1 out of 345

BQS OBSP Determination:

HEXACHLOROETHANE

METHOD: 2021 , TESTIDCODE: 34396GCM66

Open Data Set

Plotted Points Statistics

HEXACHLOROETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	10	97%	18%	96%	15%
>= Reporting Level	121	97%	16%	96%	15%
Total	131	97%	16%	96%	15%

Sample Statistics

HEXACHLOROETHANE

Characteristic	N	%	% Basis
Plotted	131	96%	Spiked
Estimated Values	13	10%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	5	4%	Spiked
Spiked	141	.
False Negatives	0	0%	0 out of 136
Not Spiked	367	.
False Positives	0	0%	0 out of 339

BQS OBSP Determination:

ISOPROPYLBENZENE (CUMENE)

METHOD: 2021 , TESTIDCODE: 77223GCM66

Open Data Set

Plotted Points Statistics

ISOPROPYLBENZENE (CUMENE)

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	100%	27%	102%	10%
>= Reporting Level	168	89%	16%	90%	15%
Total	173	89%	17%	91%	15%

Sample Statistics

ISOPROPYLBENZENE (CUMENE)

Characteristic	N	%	% Basis
Plotted	173	99%	Spiked
Estimated Values	57	33%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	2	1%	Spiked
Spiked	202	.
False Negatives	0	0%	0 out of 175
Not Spiked	306	.
False Positives	0	0%	0 out of 300

BQS OBSP Determination:

M- AND P-XYLENE

METHOD: 2021 , TESTIDCODE: 85795GCM66

Open Data Set

Plotted Points Statistics

M- AND P-XYLENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	144	91%	14%	90%	15%
Total	144	91%	14%	90%	15%

Sample Statistics

M- AND P-XYLENE

Characteristic	N	%	% Basis
Plotted	144	100%	Spiked
Estimated Values	46	32%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	149	.
False Negatives	0	0%	0 out of 144
Not Spiked	359	.
False Positives	52	16%	52 out of 331

BQS OBSP Determination:

METHYL ACRYLATE

METHOD: 2021 , TESTIDCODE: 49991GCM66

Open Data Set

Plotted Points Statistics

METHYL ACRYLATE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	24	92%	10%	89%	8%
>= Reporting Level	113	95%	9%	95%	9%
Total	137	95%	9%	94%	9%

Sample Statistics

METHYL ACRYLATE

Characteristic	N	%	% Basis
Plotted	137	81%	Spiked
Estimated Values	11	6%	Spiked
Deleted Values	33	7%	Spiked + Not Spiked
Spiked, Censored	33	19%	Spiked
Spiked	192	.
False Negatives	0	0%	0 out of 170
Not Spiked	310	.
False Positives	0	0%	0 out of 299

BQS OBSP Determination:

METHYL ACRYLONITRILE

METHOD: 2021 , TESTIDCODE: 81593GCM66

Open Data Set

Plotted Points Statistics

METHYL ACRYLONITRILE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	11	93%	19%	100%	18%
>= Reporting Level	136	101%	10%	101%	9%
Total	147	100%	11%	100%	9%

Sample Statistics

METHYL ACRYLONITRILE

Characteristic	N	%	% Basis
Plotted	147	93%	Spiked
Estimated Values	12	8%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	11	7%	Spiked
Spiked	163	.
False Negatives	0	0%	0 out of 158
Not Spiked	345	.
False Positives	0	0%	0 out of 317

BQS OBSP Determination:

METHYL IODIDE

METHOD: 2021 , TESTIDCODE: 77424GCM66

Open Data Set

Plotted Points Statistics

METHYL IODIDE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	14	105%	33%	103%	20%
>= Reporting Level	120	103%	22%	106%	17%
Total	134	103%	23%	106%	18%

Sample Statistics

METHYL IODIDE

Characteristic	N	%	% Basis
Plotted	134	96%	Spiked
Estimated Values	134	96%	Spiked
Deleted Values	33	7%	Spiked + Not Spiked
Spiked, Censored	4	3%	Spiked
Spiked	156	.
False Negatives	2	1%	2 out of 140
Not Spiked	341	.
False Positives	19	6%	19 out of 324

BQS OBSP Determination:

METHYL METHACRYLATE

METHOD: 2021 , TESTIDCODE: 81597GCM66

Open Data Set

Plotted Points Statistics

METHYL METHACRYLATE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	97%	8%	98%	9%
>= Reporting Level	125	94%	13%	93%	10%
Total	130	94%	13%	94%	11%

Sample Statistics

METHYL METHACRYLATE

Characteristic	N	%	% Basis
Plotted	130	90%	Spiked
Estimated Values	12	8%	Spiked
Deleted Values	33	7%	Spiked + Not Spiked
Spiked, Censored	13	9%	Spiked
Spiked	149	.
False Negatives	1	1%	1 out of 144
Not Spiked	353	.
False Positives	0	0%	0 out of 325

BQS OBSP Determination:

N-PROPYLBENZENE

METHOD: 2021 , TESTIDCODE: 77224GCM66

Open Data Set

Plotted Points Statistics

N-PROPYLBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	4	84%	15%	83%	19%
>= Reporting Level	177	89%	14%	88%	12%
Total	181	89%	14%	88%	12%

Sample Statistics

N-PROPYLBENZENE

Characteristic	N	%	% Basis
Plotted	181	100%	Spiked
Estimated Values	40	22%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	209	.
False Negatives	0	0%	0 out of 181
Not Spiked	299	.
False Positives	0	0%	0 out of 294

BQS OBSP Determination:

NAPHTHALENE

METHOD: 2021 , TESTIDCODE: 34696GCM66

Open Data Set

Plotted Points Statistics

NAPHTHALENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	24	83%	24%	87%	21%
>= Reporting Level	171	81%	14%	79%	13%
Total	195	81%	15%	79%	14%

Sample Statistics

NAPHTHALENE

Characteristic	N	%	% Basis
Plotted	195	86%	Spiked
Estimated Values	36	16%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	28	12%	Spiked
Spiked	260	.
False Negatives	4	2%	4 out of 227
Not Spiked	248	.
False Positives	0	0%	0 out of 248

BQS OBSP Determination:

O-ETHYL TOLUENE

METHOD: 2021 , TESTIDCODE: 77220GCM66

Open Data Set

Plotted Points Statistics

O-ETHYL TOLUENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	1	44%	.	44%	0%
>= Reporting Level	125	88%	13%	87%	13%
Total	126	87%	13%	87%	13%

Sample Statistics

O-ETHYL TOLUENE

Characteristic	N	%	% Basis
Plotted	126	100%	Spiked
Estimated Values	27	21%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	131	.
False Negatives	0	0%	0 out of 126
Not Spiked	377	.
False Positives	0	0%	0 out of 349

BQS OBSP Determination:

O-XYLENE

METHOD: 2021 , TESTIDCODE: 77135GCM66

Open Data Set

Plotted Points Statistics

O-XYLENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	1	49%	.	49%	0%
>= Reporting Level	245	93%	15%	93%	14%
Total	246	92%	15%	93%	14%

Sample Statistics

O-XYLENE

Characteristic	N	%	% Basis
Plotted	246	99%	Spiked
Estimated Values	74	30%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	1	0%	Spiked
Spiked	276	.
False Negatives	2	1%	2 out of 249
Not Spiked	232	.
False Positives	0	0%	0 out of 226

BQS OBSP Determination:

SEC-BUTYLBENZENE

METHOD: 2021 , TESTIDCODE: 77350GCM66

Open Data Set

Plotted Points Statistics

SEC-BUTYLBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	1	41%	.	41%	0%
>= Reporting Level	133	86%	12%	86%	10%
Total	134	86%	12%	86%	10%

Sample Statistics

SEC-BUTYLBENZENE

Characteristic	N	%	% Basis
Plotted	134	100%	Spiked
Estimated Values	37	28%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	156	.
False Negatives	0	0%	0 out of 134
Not Spiked	352	.
False Positives	0	0%	0 out of 341

BQS OBSP Determination:

STYRENE

METHOD: 2021 , TESTIDCODE: 77128GCM66

Open Data Set

Plotted Points Statistics

STYRENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	9	99%	23%	101%	20%
>= Reporting Level	193	89%	16%	88%	17%
Total	202	89%	17%	88%	18%

Sample Statistics

STYRENE

Characteristic	N	%	% Basis
Plotted	202	100%	Spiked
Estimated Values	47	23%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	235	.
False Negatives	0	0%	0 out of 202
Not Spiked	273	.
False Positives	3	1%	3 out of 273

BQS OBSP Determination:

TERT-BUTYLBENZENE

METHOD: 2021 , TESTIDCODE: 77353GCM66

Open Data Set

Plotted Points Statistics

TERT-BUTYLBENZENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	81%	28%	80%	9%
>= Reporting Level	126	87%	17%	85%	19%
Total	131	87%	17%	83%	19%

Sample Statistics

TERT-BUTYLBENZENE

Characteristic	N	%	% Basis
Plotted	131	98%	Spiked
Estimated Values	32	24%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	155	.
False Negatives	2	2%	2 out of 133
Not Spiked	353	.
False Positives	1	0%	1 out of 342

BQS OBSP Determination:

TERT-BUTYL METHYL ETHER (MTBE)

METHOD: 2021 , TESTIDCODE: 78032GCM66

Open Data Set

Plotted Points Statistics

TERT-BUTYL METHYL ETHER (MTBE)

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	14	112%	29%	108%	21%
>= Reporting Level	134	102%	12%	100%	10%
Total	148	103%	15%	100%	11%

Sample Statistics

TERT-BUTYL METHYL ETHER (MTBE)

Characteristic	N	%	% Basis
Plotted	148	97%	Spiked
Estimated Values	13	9%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	4	3%	Spiked
Spiked	174	.
False Negatives	0	0%	0 out of 152
Not Spiked	334	.
False Positives	0	0%	0 out of 323

BQS OBSP Determination:

TERT-PENTYL METHYL ETHER (TAME)

METHOD: 2021 , TESTIDCODE: 50005GCM66

Open Data Set

Plotted Points Statistics

TERT-PENTYL METHYL ETHER (TAME)

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	82%	19%	88%	12%
>= Reporting Level	112	93%	12%	93%	12%
Total	117	92%	12%	92%	13%

Sample Statistics

TERT-PENTYL METHYL ETHER (TAME)

Characteristic	N	%	% Basis
Plotted	117	100%	Spiked
Estimated Values	9	8%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	122	.
False Negatives	0	0%	0 out of 117
Not Spiked	386	.
False Positives	5	1%	5 out of 358

BQS OBSP Determination:

TETRACHLOROETHYLENE

METHOD: 2021 , TESTIDCODE: 34475GCM66

Open Data Set

Plotted Points Statistics

TETRACHLOROETHYLENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	35	96%	15%	99%	11%
>= Reporting Level	208	99%	15%	99%	13%
Total	243	99%	15%	99%	13%

Sample Statistics

TETRACHLOROETHYLENE

Characteristic	N	%	% Basis
Plotted	243	100%	Spiked
Estimated Values	76	31%	Spiked
Deleted Values	32	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	275	.
False Negatives	0	0%	0 out of 243
Not Spiked	232	.
False Positives	33	14%	33 out of 232

BQS OBSP Determination:

TETRACHLOROMETHANE

METHOD: 2021 , TESTIDCODE: 32102GCM66

Open Data Set

Plotted Points Statistics

TETRACHLOROMETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	3	86%	35%	96%	50%
>= Reporting Level	237	99%	19%	100%	15%
Total	240	99%	19%	100%	15%

Sample Statistics

TETRACHLOROMETHANE

Characteristic	N	%	% Basis
Plotted	240	99%	Spiked
Estimated Values	45	19%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	275	.
False Negatives	2	1%	2 out of 242
Not Spiked	233	.
False Positives	1	0%	1 out of 233

BQS OBSP Determination:

TETRAHYDROFURAN

METHOD: 2021 , TESTIDCODE: 81607GCM66

Open Data Set

Plotted Points Statistics

TETRAHYDROFURAN

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	23	122%	40%	109%	27%
>= Reporting Level	128	97%	10%	98%	10%
Total	151	101%	20%	99%	10%

Sample Statistics

TETRAHYDROFURAN

Characteristic	N	%	% Basis
Plotted	151	86%	Spiked
Estimated Values	26	15%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	25	14%	Spiked
Spiked	198	.
False Negatives	0	0%	0 out of 176
Not Spiked	310	.
False Positives	0	0%	0 out of 299

BQS OBSP Determination:

TOLUENE

METHOD: 2021 , TESTIDCODE: 34010GCM66

Open Data Set

Plotted Points Statistics

TOLUENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	95%	23%	107%	6%
>= Reporting Level	249	102%	12%	100%	9%
Total	254	102%	12%	100%	10%

Sample Statistics

TOLUENE

Characteristic	N	%	% Basis
Plotted	254	100%	Spiked
Estimated Values	56	22%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	287	.
False Negatives	0	0%	0 out of 254
Not Spiked	221	.
False Positives	17	8%	17 out of 221

BQS OBSP Determination:

TRANS-1,2-DICHLOROETHYLENE

METHOD: 2021 , TESTIDCODE: 34546GCM66

Open Data Set

Plotted Points Statistics

TRANS-1,2-DICHLOROETHYLENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	3	100%	7%	99%	11%
>= Reporting Level	173	102%	17%	104%	11%
Total	176	102%	16%	104%	11%

Sample Statistics

TRANS-1,2-DICHLOROETHYLENE

Characteristic	N	%	% Basis
Plotted	176	98%	Spiked
Estimated Values	59	33%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	4	2%	Spiked
Spiked	207	.
False Negatives	0	0%	0 out of 180
Not Spiked	301	.
False Positives	8	3%	8 out of 295

BQS OBSP Determination:

TRANS-1,3-DICHLOROPROPENE

METHOD: 2021 , TESTIDCODE: 34699GCM66

Open Data Set

Plotted Points Statistics

TRANS-1,3-DICHLOROPROPENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	5	76%	31%	77%	33%
>= Reporting Level	137	92%	14%	91%	11%
Total	142	92%	15%	91%	12%

Sample Statistics

TRANS-1,3-DICHLOROPROPENE

Characteristic	N	%	% Basis
Plotted	142	96%	Spiked
Estimated Values	11	7%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	5	3%	Spiked
Spiked	170	.
False Negatives	1	1%	1 out of 148
Not Spiked	338	.
False Positives	0	0%	0 out of 327

BQS OBSP Determination:

TRANS-1,4-DICHLORO-2-BUTENE

METHOD: 2021 , TESTIDCODE: 73547GCM66

Open Data Set

Plotted Points Statistics

TRANS-1,4-DICHLORO-2-BUTENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	19	97%	24%	89%	30%
>= Reporting Level	133	90%	18%	88%	18%
Total	152	91%	19%	88%	18%

Sample Statistics

TRANS-1,4-DICHLORO-2-BUTENE

Characteristic	N	%	% Basis
Plotted	152	94%	Spiked
Estimated Values	80	49%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	10	6%	Spiked
Spiked	167	.
False Negatives	0	0%	0 out of 162
Not Spiked	341	.
False Positives	0	0%	0 out of 313

BQS OBSP Determination:

TRICHLOROETHYLENE

METHOD: 2021 , TESTIDCODE: 39180GCM66

Open Data Set

Plotted Points Statistics

TRICHLOROETHYLENE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
>= Reporting Level	224	103%	12%	103%	9%
Total	224	103%	12%	103%	9%

Sample Statistics

TRICHLOROETHYLENE

Characteristic	N	%	% Basis
Plotted	224	100%	Spiked
Estimated Values	42	19%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	251	.
False Negatives	0	0%	0 out of 224
Not Spiked	257	.
False Positives	9	4%	9 out of 251

BQS OBSP Determination:

TRICHLOROFLUOROMETHANE

METHOD: 2021 , TESTIDCODE: 34488GCM66

Open Data Set

Plotted Points Statistics

TRICHLOROFLUOROMETHANE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	14	98%	26%	100%	24%
>= Reporting Level	161	114%	18%	113%	17%
Total	175	113%	20%	111%	19%

Sample Statistics

TRICHLOROFLUOROMETHANE

Characteristic	N	%	% Basis
Plotted	175	100%	Spiked
Estimated Values	16	9%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	0	0%	Spiked
Spiked	197	.
False Negatives	0	0%	0 out of 175
Not Spiked	311	.
False Positives	1	0%	1 out of 300

BQS OBSP Determination:

VINYL CHLORIDE

METHOD: 2021 , TESTIDCODE: 39175GCM66

Open Data Set

Plotted Points Statistics

VINYL CHLORIDE

Spike Level	N	Mean	Std-Dev.	Median	F_Pseudo
< Reporting Level	9	109%	11%	109%	13%
>= Reporting Level	127	109%	25%	106%	25%
Total	136	109%	24%	107%	23%

Sample Statistics

VINYL CHLORIDE

Characteristic	N	%	% Basis
Plotted	136	96%	Spiked
Estimated Values	12	9%	Spiked
Deleted Values	33	6%	Spiked + Not Spiked
Spiked, Censored	5	4%	Spiked
Spiked	163	.
False Negatives	0	0%	0 out of 141
Not Spiked	345	.
False Positives	2	1%	2 out of 334