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<br />CORE LABORATORIES
<br />DUAL I T Y C O N T R O L R E S U L T S
<br />Job Number.: 983261 Repor[ Date.: 12/29/98
<br />CUSTOMER: Greyst one PROJECT: DTRY 484-03 Castillo Cnty ATTN: Nick Mathis
<br />Test Method........: EPA 200.7 Batch ........ .....: 42373 Analyst...: lmt
<br />Method Description.: Metals Analysis(ICAP), Trace Unfits ........ .....: mg/L Test Lode.: BA
<br />Parameter..........: Barium (Ba)
<br />OC Lab ID Reagent OL Result DC Result True Value Orig. Value Lalc. Resin[ ' Limits Date Time
<br />SD 983261-1 0.01431 0.07378 3.0 D -10.-10.0 12/16/1998 1357
<br />ISB 981120M 0.42295 0.4975 85.0 % 80-120 12/16/1998 1632
<br />LLB 9812168 0.00031 0.001 12/16/1998 1640
<br />Test Method........: EPA 200.7 Batch .............: 42373 Analyst...: lmt
<br />Method Description.: Metals Analysis(ICAP ), Trace Unfits .............: mg/L Test Lode.: BE
<br />Parameter..........: Beryllium (Be)
<br />DC Lab ID Reagent QC Result OL Result True Value Orig. Value Calc. Result + Limits Date Time
<br />LRA 9812080 0.00021 12/16/1998 1126
<br />LRA 981008M 0.00535 12/16/1998 1129
<br />LRA 981203M 0.60029 12/16/1998 1134
<br />LRA 981008E 1.95628 20.00 12/16/1998 1138
<br />LRA 981008K 0.00043 12/16/1998 1142
<br />LRA 981008K 0.00041 12/16/1998 1149
<br />ICV 9812161 2.36714 2.5 94.7 % 90-110 12/16/1998 1153
<br />ICV 981216! 2.37877 2.5 95.2 Y. 90-110 12/16/1998 1156
<br />ILB 9812168 0.00049 0.001 12/16/1998 1202
<br />ISB 981120M 0.44846 0.4994 89.8 X 80-120 12/16/1998 1210
<br />LCS 980865 0.78163 0.770000 101.5 X 78.4-121.7 12/16/1998 1224
<br />SB 9809295 0.05006 0.05 100.1 X 80-120 12/16/1998 1228
<br />CCV 9812161 2.40934 2.5 96.4 % 90-110 12/16/1998 1256
<br />LCB 9812168 0.00095 0.001 12/16/1998 1300
<br />PDS 983261-1 9809295 0.04837 0.05 0.00088 95.0 % 75-125 12/16/1998 1332
<br />PSD 983261-1 9809295 0.04867 0.04837 0.05 0.00088 95.6 X 75-125 12/16/1998 1335
<br /> 0.6 R 20
<br />CCV 9812161 2.40554 2.5 96.2 % 90-110 12/16/1998 1340
<br />LLB 9812168 0.00065 0.001 12/16/1998 1348
<br />SD 983261-1 0.00068 0.00088 12/16/1998 1357
<br />ISB 981120M 0.43451 0.4994 87.0 X 80-120 12/16/1998 1632
<br />CCV 9812161 2.27344 2.5 90.9 Y. 90-110 12/16/1998 1636
<br />Test Nethod........: EPA 200.7 Batch .............: 42373 Analyst...: lmt
<br />Method Description.: Metals Analysi s(ICAP ), Trace Unfits .............: mg/L Test Code.: CD
<br />Parameter..........: Cadmium (Cd)
<br />DL Lab ID Reagent DC Result DL Result True Value Orig. Value Calc. Result + Limits Date Time
<br />LRA 9812080 0.00017 12/16/1998 1126
<br />LRA 981008M 0.00001 12/16/1998 1129
<br />LRA 981203M -0.00002 12/16/1998 1134
<br />LRA 981008E 1.93541 10.00 12/16/1998 1138
<br />LRA 981008K 0.00002 12/16/1998 1142
<br />LRA 9B1008K 0.00013 12/16/1998 1149
<br />ILV 9812161 0.95037 1.0 95.0 % 90-110 12/16/1998 1153
<br />ICV 9812161 0.94960 1.0 95.0 X 90-110 12/16/1998 1156
<br />ICB 9812168 -0.00004 0.0006 12/16/1998 1202
<br />ISB 981120M 0.86492 0.9985 86.6 X 80-120 12/16/1998 1210
<br />LCS 980865 0.38118 0.346000 110.2 X 76.9-123.1 12/16/1998 1224
<br />CCV 9812161 0.96090 1.0 96.1 Y. 90-110 12/16/1998 1256
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