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Sequoia 680 Chenpeake Drive Redwood CIM CA y,.,i (415) 364-9600 FAX(4 1.5) 364.9233 <br /> 40111,Wiget Lane Walnut Creek,CA 94598 (S 10) 988.9600 FAX(510)988.9673 <br /> Analytical 819 Striker Avenuer Suite 8 Sacramento,CA 95834 (916) 921.9600 FAX(916)921.0100 <br /> �\ ��..:. ����\�i\��,1�\���rti��`.i�fx:r�rfc`i'r`/d�.%�f I�':r'.r�:SY'� �i�///f/ /r`� ����������1 ��v�f///f%S:H\+��i'•f�.�'.'�'>;:2:#:t<L�:>��%���/fff//f//i�i.'�,' //�//�/'�t ';�fs'�•'{�� :\ <br /> f # eo ra�egles�nc. C�lentroJ13c asco- <br /> b164 Gold Camp Dr., Sulte 240 Matrix: Soil <br /> Rancho Cordova, CA 95670 <br /> Attention: Greg Gurss OC Sample Group: 705-0337 Reported: May 21, 1997 <br /> `f:?[N;Y.rh'+f,r:?i.,.\\1r:1 v.\\ \ :`\:*\\,\\14 {:+Y:n is{•i: +.frr%:t:f/ 11f+N <br /> �f::rJ:i v::r:.•r•:n•.,v.r• <br /> : .. "\....,\ rr.+::x.}r + r.. k:'yti^:*% {4?M.•i \,\\\:•ti, .,,::{: ,.n <br /> .v:..: :., <br /> ..,...r.:�,..,.rvr:..�;:\\,\,•n,•::.:�����\�.v:5.\�..4,:••i%%i':.:•'t i:::i::r' ..1�/ � \{{.. �+� �\\..�.,kK+��,r rf/..�..\\.\Y;...�v:•.�.:�..::::.;I.;..J.ff /..,,4.�.,.�:y ..� <br /> �:::'::: .:. r. r 1r:•..r..r............i::tri{•::{•:::i'::i+:%?J.�......F////��://:f�Y/i4•111fri:...t�1�i,\\\��`��\1.k..:•n•.r•,�:�.,:f:t:f.�:�:\,\4::::.:r::::::::._:f.:::.::ii::f,.��r/r`�'i•:S?:.iS:t/f�//�r i n:�1�:�;::::��i:::::\ <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Cadmium Chromium Lead Nickel Zinc <br /> Method: EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Analyst: K.Marchand K.Marchand K.Marchand K.Marchand K.Marchand <br /> Concentration <br /> Spiked: 50 mg/kg 50 mg/kg 50 mg/kg 50 mg/kg 50 mg/kg <br /> LCS Batch#: . LCS051997 LGS051997 LCS051997 LCS051997 LCS051997 <br /> Date Prepared: 05/19/97 05/19/97 05/19/97 05/19/97 05/19/97 <br /> Date Analyzed: 05/19/97 05/19/97 05/19/97 05/19/97 05/19/97 <br /> Instrument I.D.#: ICP-1 ICP-1 ICP-1 ICP-1 ICP-1 <br /> LCS % <br /> Recovery: 96 96 98 98 95 <br /> 4: <br /> Control Limits: 80.120 80-120 80-120 80120 80-920 <br /> `_!Z....+�. :.o...-:rr?r.':;tGr tri:•:�::�,o-::p•av: ':�,�:. :.:i^;;.t:;;.:v:oy��:-:-::�-^.:- <br /> „ <br /> _ r..i. ...v...{:f..�..,.-., .........n _ n ....-.....f...:h..S./f.M:r:. :n.... - ..�•?:ti�:?'�...:•--lJ::�:-.:..:. <br /> MS/MSD <br /> Batch#: 7050356 7050356 7050356 70503% 7050356 <br /> Date Prepared: 05/19/97 05/19/97 05/19/97 05/19/97 05/19/97 <br /> Date Analyzed: 05/19/97 05/19/97 05/19/97 05/19/97 05/19/97 <br /> Instrument I.D.#: ICP-1 ICP-1 lCP-1 ICP-1 ICP-1 <br /> Matrix Spike <br /> % Recovery: 78 76 47 84 92 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery: 75 66 51 fig 192 <br /> Relative% <br /> Difference: 3.9* 14* 8.2* 20* 70* <br /> *Matrix interference Please Note: <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL preparation and analytical methods employed for the samples. The LCS%recovery data is used for <br /> validation of sample batch results. Due to matrix effects,the QC limits for MS/MSD's are advisory only <br /> IA�IG�M • Ztt'.tplfC? and are not used to accept or reject batch results. <br /> Edana M. Fruciano <br /> Project Manager/Sacramento Laboratory <br /> 7050337.GSI <12> <br /> m <br />