<br />
<br />
<br />CORE LABORATORIES
<br />Q U A L I T Y C O N T R O L R E S U L T S
<br />Job Number: 962453 Date: 09/28/96
<br />CUSTOMER: Greystone PROJECT: 484-03 ATTN: Ray Faciski
<br />Test Method........: EPA 310.1 Batch .............: 13681 Analyst...: sgm
<br />Method Description.; Alkalinity Reporting Limit...: 5
<br />Parameter..........: Alkalinity, Total as CaC03 Units .............: mg/L CaC03
<br />0C Lab ID Reagent OL Result OC Result True Value Orig. Value Calc. Result Units Date/Time
<br />MO 2 09/17/96 1000
<br />LCS G960725A 106 100 106.0 X REC 09/17/96 1000
<br />MD 962410-1 54 52 3.8 RPD 09/17/96 1000
<br />MD 962453-1 144 146 1.4 RPD 09/17/96 1000
<br />Test Method........: EPA 200.7 Batch .............: 13747 Analyst...: gag
<br />Method Description.: Metals Anal ysis(ICAP), Trace Reporting Limit...: 0.005
<br />Parameter..........: Copper (CU) Units .............: mg/L
<br />OC Lab ID Reagent CIL Result OL Result True Value Orig. Value Calc. Result Uni [s Date/Time
<br />ICV 9606182 1.95178 2.00 97.6 X REC 09/26/96 0837
<br />ICB 9608022 0.00190 09/26/96 0933
<br />I58 960630N 0.51442 0.5000 102.9 X REC 09/26/96 0942
<br />MD 962453-1 -0.00054 -0.00314 0.00260 ABS Diff. 09/26/96 1011
<br />PDS 962453-1 960917G 0.99337 1.000 -0.00314 99.7 X REL 09/26/96 1015
<br />CCV 9606107 2.60164 2.5 104.1 X REC 09/26/96 1028
<br />CCB 9608022 -0.00146 09(26/96 1033
<br />MD 962570-1 -0.00041 -0.00009 0.00032 ABS Diff. 09/26/96 1134
<br />PDS 962570-1 960917G 0.99258 1.000 -0.00009 99.3 Y. REC 09/26/96 1146
<br />CCV 9606107 2.56181 2.5 102.5 X REL 09/26/96 1151
<br />LCB 9608022 0.00088 09/26/96 1159
<br />MD 962594-1 -0.00238 -0.00231 0.00007 ABS Diff. 09/26/96 1316
<br />CCV 9606107 2.52866 2.5 101.1 X REC 09/26/96 1342
<br />CCB 9608022 0.00120 09/26/96 1346
<br />PDS 962594-4 960917G 0.99027 1.000 -0.00286 99.3 X REC 09/26/96 1355
<br />CCV 9606107 2.55855 2.5 102.3 X REL 09/26/96 1518
<br />CCB 9608022 -0.00032 09/26/96 1536
<br />I58 960630H 0.58687 0.5000 117.4 Y. REC 09/26/96 1548
<br />LCV 9606107 2.56813 2.5 102.7 X REC 09/26/96 1555
<br />LCB 9608022 -0.00000 09/26/96 1558
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