Site Identification	USGS Site Number	Dates	Times	Type of Sample	Vinyl Acetate (microgram/L)	Acetone (microgram/L)	Acrolein (microgram/L)	2-Propenenitrile (microgram/L)	"1,2,3-Trichlorobenzene (microgram/L) "	"1,2,4-Trichlorobenzene (microgram/L)"	"1,3-Dichlorobenzene (microgram/L)"	"1,4-Dichlorobenzene (microgram/L) "	Isopropylbenzene (microgram/L)	n-Butylbenzene (microgram/L)	n-Propylbenzene (microgram/L) 	"1,2-Dichlorobenzene (microgram/L)"	sec-Butylbenzene (microgram/L)	tert-Butylbenzene (microgram/L) 	Benzene (microgram/L) 	Bromobenzene (microgram/L) 	Bromoethene (microgram/L) 	Tribromomethane (microgram/L) 	Carbon disulfide (microgram/L) 	Tetrachloromethane (microgram/L)	Chlorobenzene (microgram/L)	Chlorodibromomethane (microgram/L) 	Chloroethane (microgram/L)	Trichloromethane (microgram/L) 	"cis-1,2-Dichloroethene (microgram/L)"	"cis-1,3-Dichloropropene (microgram/L)"	"1,2-Dibromo-3-chloropropane (microgram/L) "	"1,2-Dibromoethane (microgram/L)"	Dibromomethane (microgram/L) 	Bromodichloromethane (microgram/L)	Dichlorodifluoromethane (microgram/L) 	Diisopropyl ether (microgram/L)	Hexachloroethane (microgram/L)	"1,1,1,2-Tetrachloroethane (microgram/L)"	"1,1,2,2-Tetrachloroethane (microgram/L)"	Diethyl ether (microgram/L) 	Ethyl tert-butyl ether (microgram/L) 	tert-Amyl methyl ether (microgram/L)	Ethylbenzene (microgram/L)	Tetrahydrofuran (microgram/L) 	"1,1,2-Trichloro-1,2,2-trifluoroethane (microgram/L)"	Hexachlorobutadiene (microgram/L)	"1,3,5-Trimethylbenzene (microgram/L) "	"1,2,3,5-Tetramethylbenzene (microgram/L) "	"1,4-Dimethylbenzene (microgram/L)"	Bromochloromethane (microgram/L) 	Methyl acrylate (microgram/L) 	Ethyl methacrylate (microgram/L) 	Methyl methacrylate (microgram/L)	Methyl acrylonitrile (microgram/L) 	Iodomethane (microgram/L)	Methyl tert-butyl ether (microgram/L) 	Bromomethane (microgram/L)	Chloromethane (microgram/L) 	Dichloromethane (microgram/L)	2-Butanone (microgram/L) 	4-Methyl-2-pentanone (microgram/L)	Naphthalene (microgram/L) 	2-Chlorotoluene (microgram/L)	"1,2-Dimethylbenzene (microgram/L)"	"1,1-Dichloroethane (microgram/L)"	"1,1-Dichloroethene (microgram/L)"	"1,1-Dichloropropene (microgram/L)"	"1,1,1-Trichloroethane (microgram/L)"	"1,1,2-Trichloroethane (microgram/L)"	"1,2-Dichloroethane (microgram/L) "	"1,2-Dichloropropane (microgram/L) "	"1,2,3-Trichloropropane (microgram/L)"	"trans-1,2-Dichloroethene (microgram/L)"	p-Isopropyltoluene (microgram/L) 	"1,2,3,4-Tetramethylbenzene (microgram/L) "	"1,3-Dichloropropane (microgram/L)"	3-Chloro-1-propene (microgram/L)	"1,2,4-Trimethylbenzene (microgram/L) "	Styrene (microgram/L)	Tetrachloroethene (microgram/L)	2-Ethyltoluene (microgram/L)	4-Chlorotoluene (microgram/L) 	Methylbenzene (microgram/L)	"trans-1,3-Dichloropropene (microgram/L) "	Trichloroethene (microgram/L) 	Trichlorofluoromethane (microgram/L) 	"trans-1,4-Dichloro-2-butene (microgram/L)"	2-Hexanone (microgram/L)	"2,2-Dichloropropane (microgram/L) "	Chloroethene (microgram/L) 
"Arcade Creek near Del Paso Heights, CA"	11447360	4/10/97	1030	Environmental	<10.0	<10.0	<4.00	<4.00	<.400	<.400	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.200	<.400	<.100	<.100	<.100	<.200	<.200	E.030	<.100	<.200	<1.00	<.200	<.200	<.200	<.400	<.200	<.100	<.100	<.200	<.200	<.200	<.200	<.100	E.500	<.100	<.400	<.100	<.100	<.100	<.200	<4.00	<2.00	<2.00	<4.00	<.100	E.100	<.200	<.400	<.200	<10.0	<10.0	<.400	<.100	<.100	<.100	<.200	<.100	<.100	<.200	<.100	<.100	<.400	<.100	<.100	<.100	<.100	<.200	<.100	<.100	<.100	<.100	<.100	E.100	<.200	<.100	<.200	<10.0	<10.0	<.100	<.200
"Arcade Creek near Del Paso Heights, CA"	11447360	4/10/97	1031	Replicate	<10.0	<10.0	<4.00	<4.00	<.400	<.400	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.200	<.400	<.100	<.100	<.100	<.200	<.200	E.030	<.100	<.200	<1.00	<.200	<.200	<.200	<.400	<.200	<.100	<.100	<.200	<.200	<.200	<.200	<.100	E.500	<.100	<.400	<.100	<.100	<.100	<.200	<4.00	<2.00	<2.00	<4.00	<.100	E.100	<.200	<.400	<.200	<10.0	<10.0	<.400	<.100	<.100	<.100	<.200	<.100	<.100	<.200	<.100	<.100	<.400	<.100	<.100	<.100	<.100	<.200	<.100	<.100	<.100	<.100	<.100	E.100	<.200	<.100	<.200	<10.0	<10.0	<.100	<.200
"Arcade Creek near Del Paso Heights, CA"	11447360	5/12/97	900	Environmental	<10.0	E2.00	<4.00	<4.00	<.400	<.400	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.200	<.400	<.100	<.100	<.100	<.200	<.200	E.020	<.100	<.200	<1.00	<.200	<.200	<.200	<.400	<.200	<.100	<.100	<.200	<.200	<.200	<.200	<.100	<10.0	<.100	<.400	<.100	<.100	E.050	<.200	<4.00	<2.00	<2.00	<4.00	<.100	E.100	<.200	<.400	0.486	<10.0	<10.0	<.400	<.100	<.100	<.100	<.200	<.100	<.100	<.200	<.100	<.100	<.400	<.100	<.100	<.100	<.100	<.200	<.100	<.100	<.100	<.100	<.100	E.100	<.200	<.100	<.200	<10.0	<10.0	<.100	<.200
"Arcade Creek near Del Paso Heights, CA"	11447360	5/12/97	901	Replicate	<10.0	E2.00	<4.00	<4.00	<.400	<.400	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.100	<.200	<.400	<.100	<.100	<.100	<.200	<.200	<.100	<.100	<.200	<1.00	<.200	<.200	<.200	<.400	<.200	<.100	<.100	<.200	<.200	<.200	<.200	<.100	<10.0	<.100	<.400	<.100	<.100	E.060	<.200	<4.00	<2.00	<2.00	<4.00	<.100	E.100	<.200	<.400	<.327	<10.0	E.400	<.400	<.100	<.100	<.100	<.200	<.100	<.100	<.200	<.100	<.100	<.400	<.100	<.100	<.100	<.100	<.200	<.100	<.100	<.100	<.100	<.100	E.100	<.200	<.100	<.200	<10.0	<10.0	<.100	<.200
"Arcade Creek near Del Paso Heights, CA"	11447360	6/13/97	1020	Environmental		E17.0	<5.73	<4.90	<1.06	<.752	<.216	<.200	<.128	<.744	<.168	<.192	<.192	<.384	<.128	<.144	<.400	<.416	<.320	<.352	<.112	<.728	<.480	E.040	<.152	<.368	<.856	<.144	<.200	<.192	<.384	<.392	<1.45	<.176	<.528	<.680	<.216	<.448	<.120	<4.59	<.128	<.568	<.176	<.960	E.080	<.176	<2.45	<1.11	<1.40	<2.28	<.304	<.448	<.592	<1.02	<1.53	<6.60	<1.50	<1.00	<.168	<.256	<.264	<.176	<.104	<.128	<.256	<.536	<.272	<.280	<.128	E.060	<.920	<.464	<.784	E.030	<.168	<.152	<.400	<.224	E.300	<.536	<.152	<.368	<2.77	<2.98	<.312	<.448
"Arcade Creek near Del Paso Heights, CA"	11447360	6/13/97	1021	Replicate		E17.0	<5.73	<4.90	<1.06	<.752	<.216	<.200	<.128	<.744	<.168	<.192	<.192	<.384	<.128	<.144	<.400	<.416	<.320	<.352	<.112	<.728	<.480	<.208	<.152	<.368	<.856	<.144	<.200	<.192	<.384	<.392	<1.45	<.176	<.528	<.680	<.216	<.448	<.120	<4.59	<.128	<.568	<.176	<.960	<.256	<.176	<2.45	<1.11	<1.40	<2.28	<.304	<.448	<.592	<1.02	<1.53	<6.60	<1.50	<1.00	<.168	<.256	<.264	<.176	<.104	<.128	<.256	<.536	<.272	<.280	<.128	E.060	<.920	<.464	<.784	<.224	<.168	<.152	<.400	<.224	E.300	<.536	<.152	<.368	<2.77	<2.98	<.312	<.448
"Arcade Creek near Del Paso Heights, CA"	11447360	7/21/97	940	Environmental		E6.00	<2.86	<2.45	<.532	<.376	<.108	<.100	<.064	<.372	<.084	<.096	<.096	<.192	<.064	<.072	<.200	<.208	E.020	<.176	<.056	<.364	<.240	E.040	<.076	<.184	<.428	<.072	<.100	<.096	<.192	<.196	<.724	<.088	<.264	<.340	<.108	<.224	<.060	<2.30	<.064	<.284	<.088	<.480	<.128	<.088	<1.22	<.556	<.700	<1.14	<.152	E.100	<.296	<.508	<.764	<3.30	<.748	<.500	<.084	<.128	<.132	<.088	<.052	<.064	<.128	<.268	<.136	<.140	<.064	<.220	<.460	<.232	<.392	<.112	<.084	<.076	<.200	<.112	<.079	<.268	<.076	<.184	<1.38	<1.49	<.156	<.224
"Arcade Creek near Del Paso Heights, CA"	11447360	7/21/97	941	Replicate		E5.00	<2.86	<2.45	<.532	<.376	<.108	<.100	<.064	<.372	<.084	<.096	<.096	<.192	<.064	<.072	<.200	<.208	<.160	<.176	<.056	<.364	<.240	E.040	<.076	<.184	<.428	<.072	<.100	<.096	<.192	<.196	<.724	<.088	<.264	<.340	<.108	<.224	<.060	<2.30	<.064	<.284	<.088	<.480	<.128	<.088	<1.22	<.556	<.700	<1.14	<.152	E.100	<.296	<.508	<.764	<3.30	<.748	<.500	<.084	<.128	<.132	<.088	<.052	<.064	<.128	<.268	<.136	<.140	<.064	<.220	<.460	<.232	<.392	<.112	<.084	<.076	<.200	<.112	E.080	<.268	<.076	<.184	<1.38	<1.49	<.156	<.224
"Arcade Creek near Del Paso Heights, CA"	11447360	12/19/97	950	Environmental		<9.81	<50.0	<2.45	<.532	<.376	<.108	<.100	<.064	<.372	<.084	<.096	<.096	<.192	<.064	<.072	<.200	<.208	<.160	<.176	<.056	<.364	<.240	<.104	<.076	<.184	<.428	<.072	<.100	<.096	<.192	<.196	<.724	<.088	<.264	<.340	<.108	<.224	<.060	<2.30	<.064	<.284	<.088	<.480	<.128	<.088	<1.22	<.556	<.700	<1.14	<.152	0.443	<.296	<.508	<.764	<3.30	<.748	<.500	<.084	<.128	<.132	<.088	<.052	<.064	<.128	<.268	<.136	<.140	<.064	<.220	<.460	<.232	<.392	<.112	<.084	<.076	<.200	<.112	E.078	<.268	<.076	<.184	<1.38	<1.49	<.156	<.224
"Arcade Creek near Del Paso Heights, CA"	11447360	12/19/97	951	Replicate		<9.81	<50.0	<2.45	<.532	<.376	<.108	<.100	<.064	<.372	<.084	<.096	<.096	<.192	<.064	<.072	<.200	<.208	<.160	<.176	<.056	<.364	<.240	<.104	<.076	<.184	<.428	<.072	<.100	<.096	<.192	<.196	<.724	<.088	<.264	<.340	<.108	<.224	<.060	<2.48	<.064	<.284	<.088	<.480	<.128	<.088	<1.22	<.556	<.700	<1.14	<.152	0.437	<.296	<.508	<.764	<3.30	<.748	<.500	<.084	<.128	<.132	<.088	<.052	<.064	<.128	<.268	<.136	<.140	<.064	<.220	<.460	<.232	<.392	<.112	<.084	<.076	<.200	<.112	E.089	<.268	<.076	<.184	<1.38	<1.49	<.156	<.224
"Arcade Creek near Del Paso Heights, CA"	11447360	4/23/98	1000	Environmental		<9.81		<2.45	<.532	<.376	<.108	<.100	<.064	<.372	<.084	<.096	<.096	<.192	<.064	<.072	<.200	<.208	<.160	<.176	<.056	<.364	<.240	E.044	<.076	<.184	<.428	<.072	<.100	<.096	<.192	<.196	<.724	<.088	<.264	<.340	<.108	<.224	<.060	E3.25	<.064	<.284	<.088	<.480	<.128	<.088	<1.22	<.556	<.700	<1.14	<.152	0.256	<.296	<.508	<.764	<3.30	<.748	<.500	<.084	<.128	<.132	<.088	<.052	<.064	<.128	<.268	<.136	<.140	<.064	<.220	<.460	<.232	<.392	<.112	<.084	<.076	<.200	<.112	<.076	<.268	<.076	<.184	<1.38	<1.49	<.156	<.224
"Arcade Creek near Del Paso Heights, CA"	11447360	4/23/98	1001	Replicate		<9.81		<2.45	<.532	<.376	<.108	<.100	<.064	<.372	<.084	<.096	<.096	<.192	<.064	<.072	<.200	<.208	<.160	<.176	<.056	<.364	<.240	E.046	<.076	<.184	<.428	<.072	<.100	<.096	<.192	<.196	<.724	<.088	<.264	<.340	<.108	<.224	<.060	E2.85	<.064	<.284	<.088	<.480	<.128	<.088	<1.22	<.556	<.700	<1.14	<.152	0.25	<.296	<.508	<.764	<3.30	<.748	<.500	<.084	<.128	<.132	<.088	<.052	<.064	<.128	<.268	<.136	<.140	<.064	<.220	<.460	<.232	<.392	<.112	<.084	<.076	<.200	<.112	<.081	<.268	<.076	<.184	<1.38	<1.49	<.156	<.224