ARCHIVED REPORTS_XR0006130 - Laserfiche WebLink

Home Browse Search

� � � � � � I•■ ■� 1, �■ � � ■■1� �■■� ■� � I i TABLE 2 GROUNDWATER MONITORING DATA, FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA Casing Depth Groundwater LPH Concentration (jtg/L) Well Elevdtion to Water Elevation Thickness Ethyl- Number Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE MW9 10/08/92 788 Dry - -- -- -- -- -- MW9 02/23/93 788 2836 -2048 000 -- -- -- -- --MW9 05/18/93 788 -- -- -- -- -- -- -- -- MW9 08/22/93 7 88 Not accessible -- -- -- -- -- - MW9 12/30/93 788 Not accessible -- -- -- -- -- - MW9 02/17/94 7 88 Not accessible -- -- -- -- -- MW9 05/10/94 788 26 15 -1827 000 3,100 29 52 89 7,400 - MW9 08/02/94 788 2765 -1977 000 4,900 230 120 490 I3,000 MW9 11/01/94 788 2797 -2009 000 4,300 270 170 700 12,000 MW9 02/17/95 788 2538 -1750 000 2,200 89 100 410 7,100 - MW9 05/11/95 788 2396 -1608 000 2,500 68 110 490 8,300 -- MW9 08/24/95 7 88 2439 -1651 000 490 60 38 110 1,200 -- MW9 10/19/95 7 88 24 85 -1697 000 840 120 100 320 4,900 79 MW9 02/13/96 7 88 2255 -14 67 000 890 <10 110 220 4,400 -- MW9 04/18/96 788 2035 -1247 000 780 220 110 460 5,700 <125 MW9 08/08/96 788 2156 -1368 000 510 <10 88 260 2,700 230 MW9 11/04/96 788 2194 -1406 000 370 <10 24 26 1,700 160 MW9 02/03/97 788 1751 -9 63 000 320 16 56 160 1,600 230 MW9 05/08/97 657 17 25 -1068 000 310 <5 0 39 57 2,600 250 MW9 08/26/97 657 1905 -1248 000 64 <20 <20 <20 1,100 150 MW9 11/11/97 657 1947 -1290 000 31 <1 2 <1 2 <1 2 750 c 170 MW9 11/11/97 657 180* MW9 03/03/98 657 13 81 -7 24 000 22 <0 5 1 5 2 0 540 60 MW9 03/03/98 657 68* MW9 05/20/98 657 1386 -729 000 35 <0 5 <0 5 <0 5 220e 22 MW9 05/20/98 657 20* MW9 08/19/98 657 1550 -893 000 081 68 <0 5 <0 5 340 45 MW9 08/19/98 657 44* MW9 11/18/98 657 1573 -916 000 <05 <05 <05 <05 310c 18 MW9 03/30/99 657 13 85 -728 000 -- -- -- -- -- -- MW9 05/05/99 657 1423 -766 000 <0 5 <0 5 <0 5 <0 5 93 1 5 12 MW9 08/20/99 657 1569 -912 000 -- -- -- -- -- -- MW9 12/06/99 657 15 83 -926 000 -- -- -- -- -- -- MW9 02/29/00 657 1333 -676 000 <1 <1 <1 <1 <50 4 8 g 1pioJeL[s173942Unast�ilw p\gD9O313942gx xls Page 17 of 47