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TABLE 1 <br /> SUMMARY OF GROUNDWATER MONITORING AND ANALYTICAL RESULTS <br /> 0 Gardner Property, Thornton, CA <br /> Page 5 of 7 <br /> {measured in feet MSL} (Reported in ug/l) <br /> PWe"v"D Date Wellhead Depthto GW Benzene Toluene Ethyl Xylenes TPHg <br /> Elev Water Elev BenzM10/29/91 925 1162 -237 21 <0 30 <0 30 <0 30 <30 <br /> 03/04/92 925 963 -038 <0 5 <0 5 <0 5 <0 5 95 <br /> 03/13/92 925 930 -005 -- -- -- -- -- <br /> 09/01/92 925 1239 -314 <0 5 <0 5 <0 5 <0 5 <50 <br /> 12/03/92 925 1137 -212 <0 5 <0 5 <0 5 <0 5 <50 <br /> 03/24/93 925 599 326 <05 <0 5 <0 5 <0 5 <50 <br /> 07/23/93 925 778 147 <0 50 <0 50 <0 50 <0 50 <50 <br /> 12!27/93 925 861 064 -- -- -- -- -- <br /> 03/30/94 925 762 163 -- -- -- -- -- <br /> 06/24/94 903 859 044 <0 50 <0 50 780 1,200 16,000 <br /> 09/16/94 925 1119 -194 <0 50 <0 50 <0 50 <0 50 <50 <br /> 12/21/94 925 999 -074 -- -- -- -- -- <br /> 03/30/95 925 462 463 <0 50 <0 50 <0 50 <0 50 <50 <br /> 06/30/95 925 578 347 -- -- — -- <br /> 09/29/95 925 900 025 <0 50 <0 50 <0 50 <0 50 <50 <br /> 12/29/95 925 828 097 -- -- -- -- -- <br /> 03/29/96 925 396 529 <0 5 <0 5 <0 5 <0 5 <50 <br /> 06/28/96 925 655 270 -- -- -- -- -- <br /> 09/30/96 925 975 -050 <0 50 <0 50 <0 50 <0 50 <50 <br /> 12/17/96 925 870 055 -- -- -- -- -- <br /> 03/25/97 925 355 570 <0 50 <0 50 <0 50 <0 50 <50 <br /> 06/25/97 925 742 1 83 -- -- -- -- -- <br /> W W43261TABLESITA8LEGW XLS(719/97! <br />