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' 2852 Alton Ave Irvine CA 92606 (949)261 1022 FAX(949)261 1, <br /> 1014 E Cooley Or Suite A Colton CA 92324 (909)370-4667 FAX(909)370 1 C <br /> ica 16525 Sherman way Suite C 11 Van Nuys CA 91406 (818)779 1644 FAX(818)779 1 E <br /> Del Mar Anal <br />' 9484 Chesapeake Or Suite 805 San Diego CA 92123 (619)505 9596 FAX(619)5o5 9E <br /> 2465 W 12th St Suite 1 Tempe AZ 85281 (602)968 6272 FAX(602)968 1 <br /> ms/ms D DA R PORT;-�5 <br />' EPA METHOD* 8260 <br /> Matrix Water <br /> Date <br />' Analyzed 11/27/98 <br /> Sample- HK03476 <br /> Batch- HK27091W <br /> MEAN Acceptance <br /> Analyte R11 Sp MS MSD PR1 PR2 RPD PR Limits <br /> ppb ppb ppb ppb % % % % RPD MPR <br />' Vinyl Chloride 0 25 20 19 80% 76% 51% 78 ° 20 25-190 <br /> 1,1-Dichloroethene 0 25 27 26 108% 104% 38% 106% 50 45-165 <br /> MTBE 02 25 23 25 91% 99% 83% 95% 25 60-150 <br />' 1,1-Dichloroethane 0 25 27 26 108% 104% 38% 106% 20 55-160 <br /> Chloroform 01 1 25 26 1 26 104% 104% 0% 104% 20 60-150 <br /> 1,2-Dichloroethane 01 25 22 23 88% 92% 44% 90% 20 40-160 <br />' Benzene 01 25 25 25 100% 100% 0% 100% 20 65-140 <br /> .I Trichloroethene 47 25 29 28 97% 93% 35% 95% 20 65-130 <br />' Toluene 06 25 25 25 98% 98% 0% 98% 20 70-135 <br /> Tetrachloroethene 852 25 109 105 95% 79% 37% 87% 20 50-155 <br /> Chlorobenzene 0 25 26 26 104% 104% 0% 104% 20 75-130 <br /> Ethylbenzene 01 25 27 27 108% 108% 0% 108% 20 70-135 <br /> m,p-Xylenes 03 50 55 53 109% 105% 3 70/o 107% j 20 65-140 <br /> o-Xylene 0 2 25 27 26 107% 103% 3 8% 105% 11 25 70-150 <br /> Definition of Terms: <br /> R1 . . . . . . . . . . . . . . . Result of Sample Analysis <br /> Sp. . . . . . . . •.. . ..Spike Concentration Added to Sample <br /> . . . . . . . . <br /> MS Matrix Spike Result <br /> MSD . . . . . . . . . . . . . . Matrix Spike Duplicate Result <br /> PRI . . . . . . . . . . Percent Recovery of MS, ((MS-R1)1 SP)X 100 <br /> PR2. . . . . . . Percent Recovery of MSD, ((MSD-R1)1 SP) X 100 <br /> RPD . . . . . . . . . . . . . . . Relative Percent Difference, ((MS-MSD)1(MS+MSD)I2)X 100 <br /> I Acceptance Limits. . . . . Statistically determined on an annual basis <br /> i <br /> DEL MAR ANALYTICAL <br /> I <br />