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,�. f"t}'Y°e? y� • w� � "X` A-0 r ,ma,yy f; d', fjf�Y. -�:. � V� ~`4 f' M;�. F. Y^. <br /> ass K a,rw G•S� k + a.'.r ��� '•!7' _N r '�. .. ? " :..}"�vfs t x t. ' 77 " <br /> r� `^�' r -.f. , y*`w. � ;: �' ,Sa..�, x`f�{r. t 1„�fl� Y�q�;'., r� a'Y "��h ,'✓ � �:.: ,.::r-- r�./&r �^�' r ' .x��.. _ gk: �t-�� - `T'�.e.'Y-i <br /> e <br /> f <br /> Quarterly Monitoring, First Quarter 1991 May 23, 1591 <br /> 3 AGS 38012-7 <br /> • Former Unocal Station 2859, Stocklc�n, California <br /> TABLE 2 <br /> LABORATORY .'ANALYSES OF GROUND-WATER SAMPLES <br /> Former Unocal Service station No. 2859 <br /> 1665 Pacific Avenue <br /> Stockton, California <br /> (page 2 of 2) <br /> Sample Sample Ethyl- Total <br /> ID bate TPHg Benzene Toluene benzene Xylenes <br /> W-43-MW4 08/28/89 150 <0.50 <0.50 <0.50 1.4 <br /> W-42-MW4 11/30/89 86 <0.50 X0.50 <0.50 <0.50 <br /> W-43-MW4 03/01/90 100 <0.50 <0.50 <0.50 <0.50 <br /> W-45-MW4 05/30/90 130 <0.50 <0.50 <0.50 <0.50 <br /> W-51-MW4 08/24/90 130 <0.5 0.7 0.9 1.2 <br /> IW-50-MW4 11/19/90 93 <0.50 <0.50 0.6 0.5 <br /> W-51-MW4 02/25/91 110 <0.5 <0.5 0.8 1.5 <br /> W--43-MW5 08/28/89 240 <0.50 <0.50 8.1 1.9 <br /> W-43-MW5 11/30/89 95 <0.50 <0.50 2.2 <0.50 <br /> W-43-MW5 03/01/90 So <0.50 <0.50 2.2 1.3 <br /> W-45-MW5 05/30/90 30 <0.50 <0.50 <0.50 <0.50 <br /> W--51-MW5 08/24/90 180 <0.5 <0.5 4.1 <0.5 <br /> W-50-MW5 11/19/90 <20 <0.50 <0.50 <0.50 <0.50 <br /> W-51-MW5 02/25/91. 45 <0.5 <0.5 <0.5 <0.5 <br /> Results in parts per billion (ppb) <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> < = Below detection limit or not detected by method of analysis <br /> used <br /> A,0,06,20F C;e0.5ysteMs <br />