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MP w v v v <br /> i <br /> _ <br /> Table 1 <br /> GROUNDWATER MONITORING DATA <br /> Ruiz Grocery <br /> 4491 Hest Durham Ferry Road <br /> Tracy, California <br /> (page 2 of 2) <br /> Well/ Elevation Depth Elevation Ethyl- Total Product <br /> Sade of TOC to of Hater <br /> Number Date (Datum is MSL) Hater (Datum is HSL) TPHg Benzene Toluene benzene Hylenes Observations Removal <br /> MU-3 09/04/91 97 93 8 67 89 26 <50 <0.5 <0.5 <0 5 <0 5 No Product or Sheen NA <br /> MH-3 10/31/91 10.10 87 83 WS NS NS NS NS No Product or Sheen NA <br /> MN-3 10/20/91 10 62 87 31 US US NS HS NS No Product or Sheen NA <br /> MW-3 04/09/92 14 35 83 58 <50 1 D <0 5 <0 5 <0.5 No Product or Sheen NA <br /> Mu-3 07/10/92 12 36 85 57 <50 <0 5 <1 0 <0 5 <0 5 No Product or Sheen NA <br /> MW-3 01/07/93 15.03 82.90 NS HS W5 NS NS No Product or Sheen NA <br /> MN-3 04/07/93 15 10 82 83 <50 <0 5 <0 5 <0 5 <0 5 No Product or Sheen NA <br /> MN-3 12/30/93 14 38 83 55 <50 <0 3 <0 3 <0 3 <0 3 No Product or Sheen NA <br /> Mw-3 03/09/94 15 39 82 54 <50 <0 3 <0 3 <0 3 <0.3 No Product or Sheen NA <br /> Domestic well <0 5 <0 5 <0 5 1!H NA <br /> <50 <0 5 <br /> 09/04/91 NM NH NM <0 5 <0 5 <0 5 RM NA <br /> 01/07/93 NM NH NM <50 <0.5 <br /> 04/07/93 NM NM NM <50 <0 5 <0 5 <0 5 <0 5 NM NA <br /> Analytical results in parts per billion (ppb) <br /> Measurements to feet below top of casing <br /> TOC = Top of casing <br /> MSL = Mean sea level <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> S = Sheen <br /> NS = Not sampled <br /> NM = Not measured <br /> NA = Not applicable <br /> a = Elevation corrected for presence of floating product <br /> Data collected before December 30, 1993 from Delta Environmental Consultants, Inc <br /> 03241go1/l23020-1 <br />