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4 <br /> TABLE 4 <br /> Historical Air Stripper Influent and Effluent Water Analysis <br /> September 1992 - Present <br /> (Results In parts per billion) <br /> Manteca Bean Facility <br /> 229 Moffat Boulevard, Manteca, California <br /> Sample Sample Ethyl- Total Organic <br /> ID Date TP>i-G Benzene Toluene benzene Xylenes Lead* Lead* EDB <br /> 09/11/92 2,300 810 56 47 140 — -- — <br /> 09/14/92 1,800 530 86 48 160 -- — <br /> 09/18/92 -- — — — 0 037 — <br /> AS Inf 09/22/92 1,700 460 77 39 140 <5000 — <br /> 09/28/92 3,200 1,100 76 1 43 200 <0005 -- - <br /> 10/05/92 3,200 1,100 87 74 260 3 600 -- <br /> 10/13/92 1,200 300 65 25 100 0018 — -- <br /> 12/03/92 570 190 20 12 32 0 920 — -- <br /> 02/18/93 1 290 120 46 10 46 < 005 < 010 0 040 <br /> 05/14/93 ** ** ** *+ ** *+ *+ ++ <br /> 08/18/93 410 150 37 17 51 0 081 < 010 <0 02 <br /> 11/11/93 170 79 17 6 29 < 005 < 010 <002 <br /> 02/17/94 130 27 7 5 1 15 < 005 < 010 <002 <br /> 05/19/94 140 38 1 3 1 3 40 < 005 < 010 <0 02 <br /> 09/11/92 <50 <05 <05 <05 <05 <br /> 09/14/92 <50 <05 <05 <05 <05 --09/18/92 - - - -- 0 029 <br /> AS Eff 09/22/92 <50 i <05 <05 <05 <05 <5 000 - — <br /> 09/28/92 <50 073 1 50 <05 140 <0 005 — — <br /> 10/05/92 <50 <05 <05 <05 <05 0 018 — -- <br /> 10/13/92 <50 <05 <05 <05 <05 1 0 029 — — <br /> 12/03/92 <30 <0 3 <03 <03 <03 0 006 — — <br /> 02/18/93 <10 <03 <03 <03 <05 < 005 < 010 <002 <br /> 05/14/93 ++ ++ ++ ++ ++ ++ ++ ++ <br /> 08/18/93 <10 <03 <03 <03 <05 0011 < 010 <002 <br /> 11/11/93 11 05 < 3 < 3 < 5 007 < 010 1 <002 <br /> 02/17/94 <10 <03 <03 <03 <0 5 < 005 < 010 <0 02 <br /> 05/19/94 <10 <03 <03 <03 <05 < 005 < 010 <0 02 <br /> TPH-g = total petroleum hydrocarbons-as gasoline <br /> = not analyzed <br /> AS = air stripper <br /> Inf = influent <br /> Elf = effluent <br /> EDS = ethylene dibromide (1,2-dibromoethane) <br /> * = in parts per million (ppm,or milligrams per hter[mg/1]) <br /> ** = not sampled because of system shutdown <br /> (See laboratory report for method detection limits) <br /> 55108024 020 <br /> GROUNDWATER <br /> TECHNOLOGY,INC <br />