ARCHIVED REPORTS Fourth Quarter 2013

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Page 3 of 32 alscience nvironmental Work Order Narrative aboratories, Inc. Work Order: 13-12-1796 Page 1 of 1 Condition Upon Receipt: Samples were received under Chain of Custody (COC) on 12/21/13. They were assigned to Work Order 13-12-1796. Unless otherwise noted on the Sample Receiving forms all samples were received in good condition and within the recommended EPA temperature criteria for the methods noted on the COC. The COC and Sample Receiving Documents are integral elements of the analytical report and are presented at the back of the report. Holding Times: All samples were analyzed within prescribed holding times (HT) and/or in accordance with the Calscience Sample Acceptance Policy unless otherwise noted in the analytical report and/or comprehensive case narrative, if required. Any parameter identified in 40CFR Part 136.3 Table II that is designated as "analyze immediately"with a holding time of<= 15 minutes (40CFR-136.3 Table II, footnote 4), is considered a "field"test and the reported results will be qualified as being received outside of the stated holding time unless received at the laboratory within 15 minutes of the collection time. Quality Control: All quality control parameters (QC)were within established control limits except where noted in the QC summary forms or described further within this report. Additional Comments: Air- Sorbent-extracted air methods (EPA TO-4A, EPA TO-10, EPA TO-13A, EPA TO-17): Analytical results are converted from mass/sample basis to mass/volume basis using client-supplied air volumes. New York NELAP air certification does not certify for all reported methods and analytes, reference the accredited items here: hftp://www.calscience.com/PDF/New._York.pdf Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for% moisture. All QC results are always reported on a wet weight basis. EPA 8260B: LCS Batch Number 13123OL04: All target analytes were within acceptance criteria with the exception of Methyl-t-Butyl Ether (MTBE). The LCS Duplicate recovery for this analyte was above the upper control limit of 123%, but was below the NELAC- defined upper marginal exceedance (ME) limit of 132°/x. (ME = +/-4 standard deviations.) Based upon the number of analytes spiked into the LCS, and per NELAC, the laboratory is allowed to report associated data when there is, in this case, one marginal exceedance in an LCS. Subcontractor Information: Unless otherwise noted below(or on the subcontract form), no samples were subcontracted. 7440 Lincoln Way,Garden Grove,CA 92841-1427 • TEL:(714)895-5494 • FAX:(714)894-7501