ARCHIVED REPORTS_WELL ABANDONMENT, SOIL, AND GROUNDWATER SUPPORTING DOCUMENTS

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Appendix E.1:Data Usability Summary evaluated when the sample was diluted by a factor of 10 or more, and are considered"diluted out." All surrogates were within laboratory control limits with the following exceptions: • The %R for orthoterphenyl was 265 percent, above the lab control limit of 129 percent, in sample SB-28-S-43-081124. The result was qualified E for a possible high bias. • The %R for orthoterphenyl was 143 percent, above the lab control limit of 129 percent, in sample SB-22-S-53-080813. The result was qualified E for a possible high bias. • The %R for orthoterphenyl was 143 percent, above the lab control limit of 129 percent, in sample SB-25-S-47-080818. The result was qualified E for a possible high bias. Field Duplicate Groundwater field duplicates SB-22-WD-080813 (duplicate of SB-22-W-080813), DUP-I-WD- 081120 (duplicate of SB-37-W-35-081120), and SB-42-WD-090305 (duplicate of SB-42-W- 090305)were submitted as part of this data set. RPDs were calculated for analytes that were detected in both the field duplicate and parent sample. All calculated RPDs were below the control limit of 30 percent with the following exceptions: • The RPDs for TPHd, TPHd with silica gel, naphthalene, acenaphthene, anthracene, fluoranthene,pyrene, and benzo(b)fluoranthene, calculated for the results reported in sample SB-22-W-080813 and field duplicate SB-22-WD-080813, were above 30 percent. The results were qualified E in the sample and field duplicate. • The RPD for acenaphthylene, calculated for the results reported in sample SB-37-W-35- 081120 and field duplicate DUP-I-WD-081120, was above 30 percent. The results were qualified E in the sample and field duplicate. • Acenaphthene and fluorene were not detected in sample SB-37-W-35-081120; however, the compounds were detected above the program reporting limits in field duplicate DUP-I-WD-081120. TPHd were detected in sample SB-37-W-35-081120, but not in the field duplicate. The results were qualified E in the sample and field duplicate. • Pyrene was not detected in sample SB-42-W-090305, but the compound was detected in the field duplicate SB-42-WD-090305. PAHs benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene,benzo(a)pyrene, and dibenz(a,h)anthracene were detected in sample SB-42-W-090305, but not in the field duplicate. The results were qualified E as estimated. MS/MSDs Two project-specific MS/MSD samples were collected with samples as part of this data set. The laboratory also randomly selected several project samples to prepare MS/MSD samples with some batches of samples. The samples in this data set were not evaluated in terms of the recoveries of the non-project MS/MSDs because they are not likely representative of the same sample matrix. The recoveries of the MS and MSD samples evaluated were within laboratory control limits with the following exceptions: E.1-4 From Science to Solutions