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. TA 2 SUMMARY OF GROUNDWATER ANALYTICAL RESULTS Diamond Walnut Growers 1050 S Diamond St, Stockton,California (Page 9 of 9) All results in mg11 DATE SAMPLE Crf6 Cr ETHYLENE PROPYLENE TOTAL SAMPLED ID GLYCOL GLYCOL HARDNESS Na Ca Cl Al PCE TCE Chloroform 10/19/04 MW-1 00013 0 019 -- -- 750 54 -- 100 <0120 00013 <0 0005 -- MW-2 0 030 0 028 -- -- 730 45 -- 120 <0120 <0 0005 <0 0005 -- MW-3 5 800 4 900 -- — 1,500 67 -- 740 3 000 00006 <0 0005 -- MW-4 00094 00088 -- -- 350 38 -- 21 3 600 <0 0005 <0 0005 -- MW-5 0 018 0 034 -- -- 540 49 -- 180 20 000 <0 0005 <0 0005 -- MW-6 0 064 0 063 -- -- 580 47 230 11 000 <0 0005 <0 0005 -- MW-7 0 019 0 026 -- -- 440 47 -- 73 12 000 00048 <0 0005 -- MW-8 0 010 0 011 -- -- 500 47 -- 130 0 260 00027 <0 0005 -- MW-9 0 015 0 014 -- -- 330 36 78 0 360 0 058 <0 0005 -- FW <0 001 00016 -- -- 640 58 — 150 <0120 <0 0005 <0 0005 -- 01/19/05 MW-1 0 007 <0100 -- — 510 -- 120 96 <0 05 00013 <0 0005 330 MW-2 0 029 <0100 -- -- 730 -- 160 130 <0 05 <0 0005 <0 0005 6500 MW-3 2 400 2 600 -- -- 800 -- 240 420 <0 05 00026 <0 0005 580 MW-4 00046 <0 100 -- -- 330 -- 74 20 0 290 <0 0005 <0 0005 750 MW-5 0 019 <0 100 — — 570 -- 130 190 0 290 <0 0005 <0 0005 160 MW-6 0 068 <0100 — — 550 -- 130 190 0 230 <0 0005 <0 0005 540 MW-7 0 018 <0100 -- -- 450 -- 100 57 0 320 00076 <0 0005 450 MW-8 00098 <0100 -- -- 510 -- 120 120 0 240 00033 <0 0005 12 00 MW-9 0 016 <0100 -- -- 290 -- 75 71 1 0 280 0 049 <0 0005 1 80 CALIFORNIA PRIMARY 005 010 NE NE NE NE NE 0 250 0054 0 005 0 005 0 20 MCL NOTES A1=Aluminum analayzed by EPA Method 6010B til=City of Stockton Supply Well Ca=Calcium analyzed by EPA Method 200 7 or 6010B (2)=Hexavalent Chromium analyzed by EPA Method 7199 Cl=Chloride analyzed by EPA Method 365 2 or 300 0 <=Not detected at or above method detection limits Cr=Chromium analyzed by EPA Method 200 7 .=EPA secondary standard(aesthetic standard) Cr's=Hexavalent Chromium analyzed by EPA Method 218 4 through April 16,2002 =Not anatyzedlapplicable Hexavalent Chromium analyzed by EPA Method 7199 starting July 9,2001 NE=Not established Na=Sodium analyzed by EPA Method 200 7 or 60108 MW4=Blind duplicate of MW3 sample during Ethylene Glycol analyzed by Gas Chromatography/Flame Ionization Detection(GC/FID) the 02/01/93 and 05/03/93 sampling events Propylene Glycol analyzed by Gas Chromatography/Flame Ionization Detection(GC/FID) CPT=Cone Penetrometer Test Boring Total Hardness as calcium carbonate analyzed by Method SM 23400 MCL=Maximum Contaminant Level Chloroform analyzed by EPA 82606 including other VOCs PCE=Tetrachloroethene all other VOCs were not detected TCE=Trichloroethene w 16258311ables%LAB Results[TABLE2]