Site Identification	USGS Site Number	Dates	Times	"1,1,1,2-Tetrachloroethane (Percent Recovery)"	"1,1,1-Trichloroethane (Percent Recovery)"	"1,1,2,2-Tetrachloroethane (Percent Recovery)"	"1,1,2-Trichloroethane (Percent Recovery)"	"1,1,2-Trichloro-1,2,2-trifluoroethane (Percent Recovery)"	"1,1-Dichloroethane (Percent Recovery)"	"1,1-Dichloroethene (Percent Recovery)"	"1,1-Dichloropropene (Percent Recovery)"	"1,2,3,4-Tetramethylbenzene (Percent Recovery)"	"1,2,3,5-Tetramethylbenzene (Percent Recovery)"	"1,2,3-Trichlorobenzene (Percent Recovery)"	"1,2,3-Trichloropropane (Percent Recovery)"	"1,2,3-Trimethylbenzene (Percent Recovery)"	"1,2,4-Trichlorobenzene (Percent Recovery)"	"1,2,4-Trimethylbenzene (Percent Recovery)"	"1,2-Dibromo-3-chloropropane (Percent Recovery)"	"1,2-Dibromoethane (Percent Recovery)"	"1,2-Dichlorobenzene (Percent Recovery)"	"1,2-Dichloroethane (Percent Recovery)"	"1,2-Dichloropropane (Percent Recovery)"	"1,3,5-Trimethylbenzene (Percent Recovery)"	"1,3-Dichlorobenzene (Percent Recovery)"	"1,3-Dichloropropane (Percent Recovery)"	"1,4-Dichlorobenzene (Percent Recovery)"	"2,2-Dichloropropane (Percent Recovery)"	2-Butanone (Percent Recovery)	2-Chlorotoluene (Percent Recovery) 	2-Hexanone (Percent Recovery)	3-Chloro-1-propene (Percent Recovery)	4-Chlorotoluene (Percent Recovery)	p-Isopropyltoluene (Percent Recovery)	4-Methyl-2-pentanone (Percent Recovery)	Acetone (Percent Recovery)	2-Propenenitrile (Percent Recovery)	Benzene (Percent Recovery)	Bromobenzene (Percent Recovery)	Bromochloromethane (Percent Recovery) 	Bromodichloromethane (Percent Recovery)	Bromoethene (Percent Recovery)	Tribromomethane (Percent Recovery)	Bromomethane (Percent Recovery)	n-Butylbenzene (Percent Recovery)	Carbon disulfide (Percent Recovery)	Chlorobenzene (Percent Recovery)	Chloroethane (Percent Recovery)	Trichloromethane (Percent Recovery)	Chloromethane (Percent Recovery)	Chlorodibromomethane (Percent Recovery)	Dibromomethane  (Percent Recovery) 	Dichlorodifluoromethane (Percent Recovery)	Dichloromethane (Percent Recovery)	Diethyl ether (Percent Recovery)	Diisopropyl ether (Percent Recovery)	Ethyl methacrylate (Percent Recovery)	Ethyl tert-butyl ether (Percent Recovery)	Ethylbenzene (Percent Recovery)	Hexachlorobutadiene (Percent Recovery)	Hexachloroethane (Percent Recovery)	Isopropylbenzene (Percent Recovery)	Methyl acrylate (Percent Recovery)	Methyl acrylonitrile (Percent Recovery)	Iodomethane (Percent Recovery)	Methyl methacrylate (Percent Recovery) 	Naphthalene (Percent Recovery)	Styrene (Percent Recovery)	Tetrachloroethene (Percent Recovery)	Tetrachloromethane (Percent Recovery)	Tetrahydrofuran (Percent Recovery)	Methylbenzene (Percent Recovery)	Trichloroethene (Percent Recovery)	Trichlorofluoromethane (Percent Recovery)	Chloroethene (Percent Recovery)	"cis-1,2-Dichloroethene (Percent Recovery)"	"cis-1,3-Dichloropropene (Percent Recovery)"	"1,4-Dimethylbenzene (Percent Recovery)"	n-Propylbenzene (Percent Recovery)	2-Ethyltoluene (Percent Recovery)	"1,2-Dimethylbenzene (Percent Recovery)"	sec-Butylbenzene (Percent Recovery)	Methyl tert-butyl ether (Percent Recovery)	tert-Butylbenzene (Percent Recovery)	tert-Amyl methyl ether (Percent Recovery)	"trans-1,2-Dichloroethene (Percent Recovery)"	"trans-1,3-Dichloropropene (Percent Recovery)"	"trans-1,4-Dichloro-2-butene (Percent Recovery)"
"Arcade Creek near Del Paso Heights, CA"	11447360	3/7/97	0943		95					90												100					92														97		100								101								96										100	99			102		73								92					
"Arcade Creek near Del Paso Heights, CA"	11447360	3/21/97	1003		52					45												60					58														59		68								65								53										52	49			52		36								64					
"Arcade Creek near Del Paso Heights, CA"	11447360	5/27/97	1023		92					82												97					83														98		98								95								90										83	89			93		71								93			Cannot calculate because of estimated value		
"Arcade Creek near Del Paso Heights, CA"	11447360	3/9/98	1003	77	96	98	94	77	95	90	80	N/A	82	76	84	85	62	83	84	80	85	104	82	Cannot calculate because of estimated value	78	88	74	84	83	69	80	79	70	73	Cannot calculate because of estimated value	120	119	86	69	88	97	84	81	Cannot calculate because of estimated value	68	71	66	91	101	Cannot calculate because of estimated value	87	91	Cannot calculate because of estimated value	104	79	73	68	64	60	76	91	67	81	82	Cannot calculate because of estimated value	57	65	78	102	90	Cannot calculate because of estimated value	118	82	96	83	81	68	73	75	77	66	Cannot calculate because of estimated value	74	Cannot calculate because of estimated value	66	86	66	Cannot calculate because of estimated value
"Arcade Creek near Del Paso Heights, CA"	11447360	3/9/98	1004	87	104	113	110	70	100	81	83	N/A	101	94	101	106	76	99	103	85	100	117	96	92	95	99	89	89	102	80	95	77	82	89	98	118	129	92	78	93	105	69	89	Cannot calculate because of estimated value	84	58	77	69	111	Cannot calculate because of estimated value	98	100	Cannot calculate because of estimated value	109	84	83	83	73	70	91	103	76	84	89	Cannot calculate because of estimated value	67	80	90	114	95	84	135	89	78	47	86	75	85	85	92	80	92	85	104	75	89	81	105