HYDRO28052

• Permit No: M1980233
• IBM Index Class Name: Hydrology
• Doc Date: 6/26/1998
• Doc Name: ANALYTICAL REPORT
• Media Type: D
• Archive: No

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CORE LABORATORIES
DUAL I T Y C O N T R O L R E S U L T S
Job Number.: 981513 Report Date.: 06/26/98
CUSTOMER: 483648 PROJECT: OTRY 484-03 ATTN: Nick Mathis
DC Type Description Reag. Code Lab ID Dilution Factor Date Time
Test Method........: EPA 602 Batch .............: 35524 Analyst...: maz
Method Description.: Volatile Organics (Aromatics) Units .............: u9/L
MB Nethod Blank 06/09/1998 0915
Parameter/Test Description DC Result OC ResuLt True Value Orig. Value Calc. Result • Limits
Benzene ND 0.5
Ethyl benzene ND 0.5
Toluene ND 0.5
%ylenes (total) ND 0.5
LCS Laboratory Control Sample 798060988 06/09/1998 1049
Parameter/Test Description OC Result OC Result True Value Orig. Value Calc. Resu lt • Limits
Benzene 20.741 20.10 103.2 % 39-150
E thylbenzene 23.486 20.08 117.0 X 32-160
Toluene 21.351 20. D8 106.3 X 46-148
%ylenes (total) 68.470 60.26 113.6 X 75-125
LCD Laboratory Control Sande Duplicate T980609BB 06/09/1998 1124
Parameter/Test Description DC Result OL ResuLt True Value Orig. Value Lalc. Resu lt • Limits
Benzene 20.138 20.741 20.10 100.2 X 39-150
3.0 R 25
Ethylbenxene 23..064 23.486 20.08 114.5 X 32-160
2.1 R 25
Toluene 21.847 21.351 20.08 108.8 X 46-148
2.3 R 25
%yl enes (total) 67.257 68.470 60.26 111.6 X 75-125
[.8 R 25
Page 17
X=X REC, R=RPD, A=ABS Diff., D=X Diff.
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