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Project No 58100-06-11A <br /> June 29, 1995 <br /> i <br /> TABLE ]]I <br /> CUMULATIVE SUMMARY OF GROUNDWATER MONITORING DATA AND ANALYTICAL RESULTS <br /> CALTRANS STOCKTON YARD MAINTENANCE FACILITY <br /> STOCKTON, CALIFORNIA <br /> PAGE 2 OF 2 <br /> I <br /> WELL ID DATE DEPTH TO TOC GROUNDWATER TPHg TPHd B T E X SAMPLED <br /> GROUNDWATER ELEVATION (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) BY <br /> MW-5 05/02/95 64 16 21 56 -42 60 --- --- --- --- --- --- Geocon <br /> MW-5 05/05/95 --- 21 56 --- 130 <50 1 7 0 8 <0 5 7 0 Geocon <br /> MW-5dup 05/05/95 --- 21 56 --- 120 --- 1 5 0 6 <0 5 6 0 Geocon <br /> MW-6 05/02/95 63 61 20 92 -42 69 --- --- --- --- --- --- Geocon <br /> MW-6 05/05/95 --- 20 92 --- 1,800 60 250 1 7 5 5 13 Geocon <br /> MW-7 05/02/95 63 96 21 27 -42 69 --- --- --- --- --- --- Geocon <br /> MW-7 05/05/95 --- 21 27 --- 1,700 <50 13 4 3 0 7 4 4 Geocon <br /> MW-8 05/02/95 64 11 21 48 -42 63 550 <50 3 1 1 8 0 6 4 0 Geocon <br /> VW-1 05/02/95 64 40 21 73 -42 67 --- --- --- --- Geocon <br /> VW-1 06/06/95 63 83 21 73 -42 10 28,000 600 5,300 2,500 300 2,000 Geocon <br /> notes ug/L = micrograms per liter <br /> TOC = top of casing <br /> TPHg = total petroleum hydrocarbon as gasoline <br /> TPHd = total petroleum hydrocarbon as diesel <br /> BTEX = benzene, toluene, ethylbenzene and total xylenes <br /> --- = not tested <br /> depth to groundwater measured in feet from top of well casing <br /> groundwater elevations for 04/06/92 were recalculated using the Caltrans survey performed on 10/27/93 <br /> * = laboratory report notation "the above samples do not appear to contain diesel" <br /> AG = Afton Geosciences <br /> EA = Environmental Assessors, Inc <br /> N&M = Ninyo & Moore <br />