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Bt� LABORATORIES, INC. <br />lc�'- I <br />Herst Associates Project: Misc. Samples Reported: 12103/2007 13:45 <br />4630 South Highway 94 North Outer Road Project Number: NCYC <br />Saint Charles, MO 63304 Project Manager: David Vasbinder <br />Volatile Organic Analysis (EPA 11"iethold 826U) <br />Quality Control Report - Precision & Accuracy <br />Control Limits <br />Source Source Spike Percent Percent <br />'onstituentBatch ID QC Sample _TME!2 Sample ID Result Result Added Units RPD Recove!y RPD Recovery Lab Quals <br />Bromodichloromethane <br />BQK1522 <br />Matrix Spike 0713771-03 <br />0 <br />26.470 <br />ztWIJU <br />3.7 <br />110 <br />Matrix Spike Duplicate 0713771-03 <br />. . ..... ..... - ------- <br />0 .... <br />. ........ ........ . . <br />... . . . . .. . <br />27.550 <br />. . . <br />..... ...... ........ ... ... . ... . ... ..._ <br />25.000 <br />1111 <br />Chlorobenzene <br />. ...... <br />BQK1522 <br />. ... - - . . ....... ..... ... <br />Matrix Spike 0713771-03 <br />0 <br />25.190 <br />25,000 <br />20 <br />70-130 <br />Matrix Spike Duplicate 0713771-03 <br />0 <br />26.170 <br />- --. I--. ....... <br />25.000 <br />--.' <br />..... . ... .... . . . <br />Chloroethane <br />BQK1522 <br />.... .. .. ..... . . .....I.. ".- . .... ...... ..... - .. . .. .......... - I . .. ... ....... ...... .. <br />Matrix Spike 0713771-03 <br />...... ...... 11--.11 111.11,11.11.1 111. <br />0 <br />25.580 <br />25.000 <br />ug/L <br />Matrix Spike Duplicate 0713771-03 <br />0 . . ... <br />26.740 <br />.... ----- -- - <br />25.000 <br />.......... .........-.1. <br />1,4 -Dichlorobenzene <br />BQK1522 <br />Matrix Spike 0713771-03 <br />0 <br />24.880 <br />25.000 <br />107 <br />Matrix Spike Duplicate 0713771-03 <br />.. .. ..... . .... . .. .. ..... .. <br />0 <br />... ... ....1111... <br />25.260 <br />... .... ......... <br />25.000 <br />1,1-Dichloroethane <br />BQK1522 <br />Matrix Spike 0713771-03 <br />0 <br />26.860 <br />25.000 <br />70-130 <br />ug/L <br />Matrix Spike Duplicate 0713771-03 <br />0 <br />27.260 <br />. ............. ..... . .... .. .. <br />25.000 <br />. ..... - -- ---- <br />1,1-Dichloroethene <br />BQK1522 <br />.. . ....... .... . ........... -- ---- <br />Matrix Spike 0713771-03 <br />......... <br />0 <br />.... <br />26.830 <br />25.000 <br />3.7 <br />ill <br />Matrix Spike Duplicate 0713771-03 <br />11... ........ ... ........ <br />0 <br />. . . .................... <br />28.010 <br />25.000 <br />Toluene <br />BQK1522 <br />Matrix Spike 0713771-03 <br />0 <br />26.760 <br />25.000 <br />20 <br />. . . . . ................... <br />70-130 <br />........... ....... . <br />Matrix Spike Duplicate 0713771-03 <br />0 <br />27330 <br />........... <br />25.000 <br />. .. . . .... ......... <br />Trichloroethene <br />BQK1522 <br />....... .. ---- - ----------- ----------11..11_...._......----.. <br />Matrix Spike 0713771-03 <br />0 <br />26.300 <br />25.000 <br />ug/L <br />Matrix Spike Duplicate 0713771-03 <br />-11.....1 .. ..... ..... ...... ... . . - . .... ........... <br />0 <br />...... . . ... I'll., ....... . . ..... <br />27.390 <br />---- - <br />25.000 <br />-----.1111---- - ... ....... <br />1,2-Dichloroethane-d4 (Surrogate) <br />.... ... ... <br />BQK1522 <br />.......... <br />Matrix Spike 0713771-03 <br />ND <br />10.270 <br />10.000 <br />99.4 <br />Matrix Spike Duplicate 0713771-03 <br />ND <br />9.9600 <br />--- --------- <br />10.000 <br />- <br />Toluene -d8 (Surrogate) <br />BQK1522 <br />Matrix Spike 0713771-03 <br />ND <br />9.9500 <br />10.000 <br />Matrix Spike Duplicate 0713771-03 . .... ------------- <br />ND <br />-- .. ....... . <br />10.170 <br />- -- - -- ----- ---1 <br />10.000 <br />. <br />I . . .........--1111 <br />4-Bromofluorobenzene (Surrogate) <br />BQK1522 <br />Matrix Spike 0713771-03 <br />ND <br />9.9400 <br />10,000 <br />...... ...... <br />Matrix Spike Duplicate 0713771-03 <br />. . . . .... ..... ..... . <br />ND <br />9.9300 <br />10400 <br />.. ..... . ..... <br />Ug/L <br />Wo <br />iv- jov <br />ug/L. <br />3.7 <br />110 <br />70 -13 <br />ug/L <br />101 <br />70-130 <br />ug/L <br />3.9 <br />105 <br />20 <br />70-130 <br />ug/L <br />102 <br />70-130 <br />ug/L <br />4.8 <br />107 <br />20 <br />70-130 . ..... ..... <br />ug/L <br />99.5 <br />70-130 <br />ug/L <br />1,5 <br />101 <br />..._1....._.111. <br />20 <br />70-130 <br />ug/L <br />107 <br />70-130 <br />ug/L <br />1�9 <br />109 <br />20 <br />. .... <br />70-130 <br />. ...... ....... <br />ug/L <br />107 <br />70-130 <br />ug/L <br />4.6 <br />112 <br />.. ..... <br />20 <br />... . . . . . ..... <br />70-130 <br />ug/L <br />107 <br />70-130 <br />ug/L <br />3.7 <br />ill <br />20 <br />70-130 <br />ug/L <br />105 <br />70-130 <br />ug/L 1..1...........--- <br />4.7 <br />.... .... . .... <br />110 <br />... ... . . .. ................ .. . . ... <br />20 <br />. . . . . ................... <br />70-130 <br />........... ....... . <br />ug/L <br />103 <br />76-114 <br />ug/L <br />-1111 1111 <br />1111.,...... . . ... <br />99.6 <br />... <br />76-114 <br />. ... . ................ . <br />ug/L <br />99.5 <br />88-110 <br />ug/L <br />. --------- ...........11_ <br />..... - <br />. . .... . ........ <br />102 <br />- ----------- -.- . . ............ <br />.. .. .... .. . ..... <br />88-110 <br />ug/L <br />99.4 <br />86-115 <br />ug/L <br />-.1-1-1 ......... .. . <br />. . ......... <br />99.3 <br />86-115 <br />BC Laboratories 7'he results in this report apply to the samples anclyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. <br />All results listed in this report am for the exclusive use of the submitting pa -Ty. BC Laboratories, Inc. aswmcs no responsibility for report alteration, sepinition,. detachment or third party interpretation. Page 31 of 39 <br />100 4jWourNJJJkersWJfA 9JW (66"-49 LLA -LAX <br />"27 <br />-1AiiwwviaS-c06w <br />