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<br /> Historical Groundwater Monitonng and Analytical Data
<br /> 7 Eleven Store#19976
<br /> 1399 North Main Street
<br /> Manteca CA
<br /> Well IDI Ethyl- MtBE 1,2- Eth- Meth- Dissolved
<br /> Elevation Date Benzene Toluene Benzene Xylene TPH-G 8020 MtBE TBA DIPE EtBE TAME DCA EDB anol anol Notes Oxygen DTW SPT WTE
<br /> TOC (pglL) {pg/L) (p L OWL) (pg1L) I (p 1L) (p L) (Ng1L) I (Ng1L) I (Ng1L) I (pg1L} 1.(pg/L) (p 1L) (mg&) m ) (mg/L) (feet) (feet] (feet)
<br /> MW-2
<br /> 31 24 09/16/98 245 246 105 688 2,430 -- 449 75 <5 <5 114 - - -- -- 1 3 1403 000 17 17
<br /> 12/30/98 3,150 2,950 2,230 13,500 38,400 -- 254 <200 <50 <50 <50 -- -- - -- 04 1340 000 1780
<br /> 02/18/99 5,700 4,900 2,100 12,000 57,000 <500 630 <100 <25 <25 <25 - - -- - 04 1348 000 1772
<br /> 06/04/99 6,120 7,120 2,470 15,000 55,400 - 885 <200 <50 <50 <50 - - -- -- 02 1454 000 1666
<br /> 09/14/99 2,590 2,710 1,800 11,700 29,200 <250 255 <800 <200 <200 <200 -- - - - -- 1662 000 1458
<br /> 11/04/99 2,280 2,140 1,960 13,000 46,400 <250 147 <20 <5 <5 <5 -- - - - 16 1690 000 1430
<br /> 01/24/00 6,990 4,220 2,230 12,600 36,200 900 753 <400 <100 <100 <100 -- -- - - 05 1690 000 1430
<br /> 04/06/00 5,600 5,200 2,500 14,000 58,000 - 1,400 <1 200 <50 <50 <50 -- -- - -- 12 1584 000 1536
<br /> 07/21/00 2,700 2,400 1,900 11,000 68,000 - 240 <250 <10 <10 <10 <1 -- <5 <5 05 1734 000 1386
<br /> 10/12/00 2,000 1,500 1,900 11,000 42,000 - 90 <1 200 <100 <100 <100 <50 - <5 <5 03 1745 000 1375
<br /> 01/16/01 <0 5 <0 5 089 <1 <100 - 99 <100 <4 <4 <4 -- - -- -- C 06 1730 000 1390
<br /> 04/02/01 5,900 4,700 1,900 12,000 44,000 - 5,100 <5 000 <200 <200 <200 - - - - 07 1800 000 1320
<br /> 06/26/01 3,300 2,000 1,400 8,200 140,000 -- 980 <1,200 <50 <50 <50 -- - - - 07 2010 000 11 10
<br /> 11/28/01 4,000 2,300 2,500 11,000 46,000 -- 690 130 <25 <25 <25 -- -- - - 09 2037 000 1083
<br /> 01/30/02 190 45 160 540 5,500 -- 170 <20 <5 <5 <5 - - - 1 0 1810 000 1310
<br /> 04/04/02 5,000 4,100 2,300 10,000 58,000 7,700 11,000 11,000 <200 <200 <200 - -- -- -- 1 0 1896 000 1224
<br /> 07/08/02 2,700 1,400 1,700 7,800 36,000 1,400 1,800 910 <33 <33 <33 - -- -- 1 0 2015 000 11 05
<br /> 10/03/02 5,400 610 2,300 7,700 46,000 1,900 1,600 840 <50 <50 <50 - - - - 10 1935 000 11 85
<br /> 03/11/03 3,600 1,800 2,400 8,700 54,000 -- 2,900 1,700 <20 <20 <20 - - - - 13 1901 000 1219
<br /> 06/27/03 3,100 1,900 1,600 7,900 55,000 -- 2,300 1,200 <0 50 <0 50 31 -- - - - e 01 1978 000 11 42
<br /> 09/15/03 1,100 370 970 5,700 40,000 -- 810 540 <20 <20 <20 -- - - - 05 2006 000 11 14
<br /> 12/23/03 1,000 350 670 4,400 27,000 - 1,800 1,000 <5 0 <5 0 <5 0 -- -- - -- 10 21 11 000 1009
<br /> 03/29/04 65 <20 <20 22 <2 000 - 5,900 1,600 <20 <20 <20 -- -- - -- 01 2026 000 1094
<br /> 06/10/04 480 160 22 1,600 15,000 - 2,800 1,500 <5 0 <5 0 <5 0 - -- -- -- 08 2237 000 883
<br /> 09115/04 200 80 17 960 9,900 - 6,300 2,500 <15 <15 <15 -- -- -- 37 2479 000 641
<br /> 12/10/04 40 21 88 590 8,800 -- 1,800 1,100 <2 5 <2 5 34 <2 5 <2 5 <25 <250 05 2258 000 862
<br /> 02/10/05 18 <5 0 <5 0 130 4,000 -- 3,200 4,100 <5 0 <5 0 64 -- - - - 1 7 21 56 000 964
<br /> 06/03/05 <0 50 <0 50 <0 50 15 <50 - 240 36 <0 50 <0 50 <0 50 -- - - - 157 21 85 000 935
<br /> 08/15/05 53 45 072 110 3,000 - 940 350 <0 50 <0 50 37 -- - - -- 1 9 21 02 000 10 18
<br /> 10/26/05 <0 50 066 <0 50 18 1,000 - 220 83 <0 50 <0 50 <0 50 - -- - -- 150 1924 000 11 96
<br /> 01/18/06 <0 50 <0 50 <0 50 <0 50 <50 -- 25 <5 0 <0 50 <0 50 <0 50 - - - - 208 1786 000 13 34
<br /> 04/18/06 <0 50 <0 50 <0 50 075 <50 - 13 92 <0 50 <0 50 <0 50 - - - - l 129 1656 0 00 1464
<br /> 05/12/06 so 17 <0 50 42 390 -- 380 76 <0 50 <0 50 068 - - - -- 11 2 i 6 79 000 1441
<br /> /�/��{ 1 47 Elevenl7 11 Stores119976\Tablest19976 Current GroundwaterHistoncal Water Page 4 of 12
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