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<br /> 												Groundwater Monitoring Data    						Page 2 of 4
<br />   							ARCO Service Station No  2168, 441 Charter Way, Stockton, California      					_
<br />      		well    			Elevation	Static  	Elevation
<br />      		Sample     			of Top       Water		of   								Total
<br />      		Number     	Date 	of Casing       Level      Groundwater      TPHG      &nzene     Toluene     Eth lbenaene       Xylenes 		Observations
<br />      		MW-3
<br />       		MW 3(54)       12/17/92    	958       4169     	3211      67,000      12,000       5,500    	2,100 	7,200  	No FP,No S,No O
<br />       		MW-3(54)       03/10/93    	958       3954    	-2996      51,000      16 000	1,300     	1 800 	4,900  	No FP,No S Yes 0
<br />       		MW-3(54)       06/10/93     	958       3742    	-2784      44,000      12,000	2,100     	1,800 	3,200  	No FP,No S Yes 0
<br />       		MW 3(54)       09/02/93     	958       3823    	-2865      49,000      13,000       2,200    	2,100 	4,500  	No FP,No S,Yes 0
<br />       		MW-3(54)       10/28/93     	958       3846    	-2888      46,000      14,000	1,900    	2000 	4,200  	No FP,No S,Yes 0
<br />       		MW-3(36)       03/23/93    	958       3802    	-2844      42,000       12,000       2,300     	1,900 	3,300  	No FP,No S,Yes O
<br />       		MW-3(36)       06/29/94    	958       3783    	-2825      44,000       14,000	5 300     	1,800 	5,500  	No FP,No S,O=NE
<br />       		MW-3(40)       09/26/94    	958       3901    	-2943      45,000       9,200       2,500     	1,000 	2,700  	No FP,No S,O=NE
<br />       		MW 3   	12/01/94     	958       3924    	-2966   			Well Not Sampled      				No FP,S=Yes,O=NE
<br />       		MW 3(53)       02116/95     	958       3624    	-2666      37,000       14 000 	340    	2 100   	470  	No FP,No S,0=NE
<br />       		MW-3(53)       05/17/95    	958       3l 49    	-2191       39,000      13 000	1,200    	2 100 	1 500  	No FP No S,O=NE
<br />       		MW-3(53)       08/15/95    	959       3106    	-2148      31,000      11,000 	220     	1,800   	910  	No FP,No S,Yes O
<br />       		MW-3(53)       11/29/95    	958       3125    	-2167      41000      10,000 	350     	1900   	860  	No FP,No S.Yes 0
<br />       		MW-3   	02/27/96    	958       2851     	1893    a 36 000      10,000 	510     	1,800   	990  	No FP,No S,Yes 0
<br />       		MW-4
<br />       		MW-4   	01/20/93    	1234       4435    	-3201  	NS  	NS  	NS       	NS   	NS  	No FP,No S,Yes 0
<br />       		MW-4   	01/26/93   	1234       4399    	-3165  	NS  	NS  	NS       	NS   	NS  	No FP,No S Yes 0
<br />       		MW-4(59)       03/10/93    	1234       4242    	-3008     110,000      14,000      24,000    	3,200	15,000  	No FP,No S,Yes O
<br />       		MW-4(59)       06/10/93    	1234       4068    	-2834     110,000       9,100      17,000    	2,700	13,000  	No FP,No S,Yes 0
<br />       		MW-4(59)       09/02/93    	1234       4159    	-2925     110,000      12,000      21,000    	2,700	13,000  	No FP,No S,Yes O
<br />       		MW-4(59)       10/28/93    	1234       4178    	-2944      90,000	1,100      20 000    	2,700	13000  	No FP,No S,Yes O
<br />       		r-4(38)       0312.3194   	1234       4123    	-2889       38,000       7,600      12,000    	2,000	10,000  	No FP,No S,Yes 0
<br />    			_4(38)       06/29/94    	l2 34       4106    	-2872      43,000       2,400       2,800     	1,000 	5,800  	No FP,No S,O=NE
<br />    			-4(43)       09/26/94    	1234       4226    	-2992      60,000       4,600       7,400     	1 300 	6,000  	No FP,No S,O=NE
<br />    			4   	12/01/94    	1234       4241     	3007   			Well Not Sampled       				No FP,S=Yes,O=NE
<br />			MW 4(58)       02/16/95    	1234       3925     	2691       77,000       9,200       13,000     	1,700 	8,000  	No FP,No S,O=NE
<br />			MW 4(58)       05/17/95    	1234       3465    	-2231       89,000      11,000       17,000    	2,100 	9,900  	No FP,No S 0=NE
<br />			MW-4(59)       08/15/95   	1234       3430    	-2196      74,000       6,400       10,000     	1,600 	7,600  	No FP,No S,Yes O
<br />			MW-4(59)       11/29/95    	1234       3442     	2208      92,000       7,800       12,000     	1,700 	7,600  	No FP,No S,Yes O
<br />			MW 4   	02/27/96    	1234       3167     	1933    V 61 000       7 600	8,500     	1 600 	6,600  	No FP,No S,Yes 0
<br />			MW5
<br />			MW-5   	01/20/93    	928       41 12    	-3184  	NS  	NS  	NS       	NS    	NS  	No FP,No S,Yes O
<br />			MW 5   	01/26/93    	928       4077    	-3149  	NS  	NS  	NS       	NS   	NS  	No FP No S,Yes O
<br />  																												I
<br />			MW-5(55)       03/10/93    	928       39 11    	-2983      49,000       9,200	6,600      	830 	4,200  	No FP,No S,Yes 0
<br />			MW-5(55)       06/10/93    	928       3734    	-2806      37,000       6,400       4,100      	870 	3,800  	No FP,No S,Yes 0
<br />			MW 5(55)       09/02/93     	928       3823    	-2895      51,000       7,900       6,600      	990 	4,800  	No FP,No S,Yes O
<br />			MW 5(55)       10/28/93     	928       3846	-..-2918      60,000       9,200       9,000     	1,200 	6 700  	No FP,No S,Yes O
<br />       	NW 5\8*15\,1460n53096S 1 XLS  																		Revision 1 5!301'96
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