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								    			• 									Tableo										Pal*of 5
<br />     										Groundwater Monitoring Data
<br />												1995 to Present
<br />    						ARCO Service Station No. 548, 16'12 Hammer Lane, Stockton, California
<br />       	Well    			Elevation  Static   Top     Elevation   Groundwater
<br />   	Sample      			of Top   Water    of  	of    	Flow  					Ethyl-    Total
<br />  	Number    	Date  	of Casing  Level  Screen Groundwater   Direction    TPHG   Benzene  Toluene benzene Xylenes  MTBE 1      Observations
<br />     	MW-1 (56)   02/15/95    	1036    4119   4851      -3083    	E   	59	21	25	10       33	NA      No FP,No S, O=NE
<br />     	MW-1 (56)   05/12/95    	1036    3933		-2897    	E    	84	47	41	17       65	NA      No FP,No S,Yes 0
<br />    	MW-1 (56)   08/29/95    	1036    4089		-3053    	E   	190	80	58       47	18	NA      No FP,No S,Yes 0
<br />    	MW-1 (56)   12/04/95    	1036    3953		-2917    	E   	78	23	14	14       53	NA      No FP,No S,Yes O
<br />    	MW-1 	02/02/96    	1036    3757		-2721    	E    	59	34	15	15       49	NA       No FP,No S,No 0
<br />    	MW-1 (56)   05/10/96    	1036    3504		-2468    	E   	92	55	21	24	12 	<3	No FP,No S,No 0
<br />    	MW-1 (56)   08/29/96    	1036    3677		-2641    	E   	100	42	14       32	12 	<3	No FP,No S,No 0
<br />    	MW-1 (56)   11/20/96    	1036    3575		-2539    	E   	140	60	15       46	1$ 	<3	No FP,No S,No 0
<br />    	MW-1 (56)   03/19/97    	1036    3202		-2166  	E-SE 	230	11 	22	64	20 	<3	No FP,No S,No 0
<br />    	MW-1 (56)   05/27/97    	1036    3227		-2191  	ESE'	300	18 	16	10	25 	<3	No FP,No S,No 0
<br />    	MW-1 (55)   08/12/97    	1036    3364		-2328    	E   	110 	7	075       48       96 	<5	No FP,No S,No 0
<br />    	MW-1 (56)   11/18/97    	1036    3338		-2302    	E   	180	15 	13	10	14 	<5	No FP,No S,No 0
<br />    	MW-1 (57)   02/16/98    	1036    3003		-1967   	SE  	<50	19	28       074       27 	<5       No FP,No S,Yes 0
<br />    	MW-1 (56)   06/23/98   [P]      1036    2748		-1712   	SE  	103       458      0 581     317      146	<5	No FP,No S,No 0
<br />    	MW-1 (55)   09/29/98   [P]      1036    2925		-1889    	E   	151       124       <05      807      238	<5       No FP,No S,Yes 0
<br />    	MW-1 (55)   12/30/98   [P]      1036    2702		-1666   	SE  	619       372       <0 5      142      <0 5	<5	No FP,No S,No O
<br />    	MW-1 (55)   03/31/99   [P]      1036    2563		-1527  	E-SE 	<50       143       <0 5     0 662     <0 5	<5	No FP,No S,No 0
<br />    	MW-2 (61)   02/15/95     	982     4067   4700      -3085    	E   	<50       <05       <0 5      050      <05       NA      No FP,No S,O=NE
<br />    	MW-2 (61)   05/12/95     	982     3885		-2903    	E   	<50       <0 5       <0 5      <0 5      <0 5       NA       No FP,No S,No 0
<br />    	MW-2 (61)   08/29/95     	982     4044		-3062    	E  	*<52      <0 5       <0 5       10       <0 5       NA       No FP,No S,No 0
<br />    	MW-2 (61)   12/04/95     	982     3908		-2926    	E  	*<60      <0 5       <0 5      <0 5      <0 5       NA       No FP,No S,No 0
<br />    	MW-2	02/02/96     	982     3709		-2727    	E   	<50       <05       <05      <0 5      <0 5       NA       No FP,No S,No 0
<br />    	MW-2 (61)   05/10/96     	982     3455		-2473    	E   	<50       <0 5       <05      <0 5      <0 5	<3	No FP,No S,No 0
<br />    	MW-2 (61)   08/29/96     	982     3629		-2647    	E  	**<60     <0 5       <0 5      <0 5      <0 5	<3	No FP,No S,No 0
<br />    	MW-2 (61)   11/20/96     	982     3525		-2543    	E   	<50	05       <0 5      <0 5      <0 5	<3	No FP,No S,No 0
<br />    	MW-2 (61)   03/19/97     	982     3152		-2170  	E-SE 	<50	06       <0 5      <0 5      <0 5	<3	No FP,No S,No 0
<br />    	MW-2	05/27/97     	982     3179		-2197  	E-SE 	<50	12       <0 5      <05      <0 5	<3	No FP,No S,No 0
<br />    	MW-2 (60)   08/12/97     	982     3318		-2336    	E   	52	<0 5       <0 5      <0 5      <0 5	<5	No FP,No S,No 0
<br />    	MW-2  61    11/18/97     	982     3288		-2306    	E   	<50	26	14       065       15 	<5	No FP,No S,No 0
<br />    	Cp1E 1ARC004S QTRI.Y10548Q199 XLS
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