FREY ENVIRONMENTAL, INC.

Transcription

1 FREY ENVIRONMENTAL, INC. Environmental Geologists, Engineers, Assessors 2817 A Lafayette Avenue Newport Beach, CA (949) Fax (949) Freyinc@freyinc.com June 18, Andy Acosta acostatrees@msn.com (via ) RE: Soil Sample Laboratory Analytical Results 1000 West North Shore Drive Big Bear, California Dear Mr. Acosta: This letter documents soil sampling activities and presents the results of laboratory analyses of soil samples conducted at 1000 West North Shore Drive, Big Bear, California (Site Figure 1 and 2). Field Activities On May 27, 2014, FREY Environmental, Inc. (FREY) collected soil samples from the soil stockpile located along the eastern property line of the Site (Figure 2). The stockpile was divided into 10 theoretical grids. Soil samples were labeled according to the theoretical soil stockpile grid number. Ten discrete soil samples were collected as part of this investigation. Soil sample locations were recorded with a Global Positioning System (GPS) unit to document the location of the sample. Soil sample locations are shown on Figure 2. Soil samples were collected by removing approximately one foot of surficial soil from the stockpile. One 8-ounce glass jar was inserted directly into the freshly exposed soil surface. Each sample jar was packed to the rim with soil and the open end covered with Teflon sheeting. A screw tight lid was then screwed onto each jar. In addition, one brass tube was inserted directly into the freshly exposed soil surface. Each sample tube was packed with soil and the open ends covered with Teflon sheeting followed by an air tight cap. Each soil sample was labeled with the sample number, project number, date and time of sample collection. Soil samples were collected under the direction of a State of California Professional Geologist. Soil samples were immediately placed in a cooler chilled with ice and transported using chain of custody procedures to Calscience Environmental laboratory within 4 hours of collection.

2 Laboratory Analysis of Soil Samples The soil samples were analyzed by Calscience Environmental Laboratories, Inc. of Garden Grove, California for the following analytes in accordance with the listed methods: Total Petroleum Hydrocarbons with Carbon Chain Breakdown... EPA Method No. 8015M Volatile Organic Compounds... EPA Method No. 8260B Title 22 Metals... EPA Method Nos. 6010B & 7471A Laboratory Results Soil samples SP1 through SP10 contained the following concentrations of total petroleum hydrocarbons (TPH). The concentrations shown below are all in milligrams per kilogram (mg/kg). Sample Sample TPH TPH TPH TPH Designation Depth C6 - C12 C10 - C22 C21 - C44 C6 - C44 (feet) Gasoline Range Hyrdocarbons Diesel Range Hyrdocarbons Oil / Heavy Fuel Range Hyrdocarbons SP1 1 ND ND SP2 1 ND 84 1,090 1,200 SP3 1 ND 74 1,307 1,400 SP4 1 ND ND SP5 1 ND ND 999 1,000 SP6 1 ND ND SP7 1 ND 153 1,039 1,200 SP8 1 ND ND SP9 1 ND ND SP10 1 ND ND Soil samples SP1 through SP10 did not contain concentrations of volatile organic compounds. With the exception of arsenic, various metals were detected in soil samples SP1 through SP10 but in concentrations well below California Human Health Screening Levels (CHHSLs) for residential soils as published by the Cal-EPA (Cal-EPA, 2005). Arsenic was detected at concentrations up to 2.54 mg/kg, which exceeds the CHHSL concentration, but is well below the commonly accepted regional background level of 12 mg/kg as established by the Department of Toxic Substance Control (DTSC, 2009). Laboratory analytical and quality control/assurance reports have been attached in Appendix A. Soil sample locations documented by the global positioning system are located in Appendix B. 2

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4 FIGURES

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7 APPENDIX A LABORATORY REPORTS

8 Page 1 of 79 WORK ORDER NUMBER: AIR SOIL WATER MARINE CHEMISTRY For Client: Client Project Name: Acosta / Attention: Evan Privett Approved for release on 06/04/2014 Stephen Nowak Project Manager by: Calscience Environmental Laboratories, Inc. (Calscience) certifies that the test results provided in this report meet all NELAC requirements for parameters for which accreditation is required or available. Any exceptions to NELAC requirements are noted in the case narrative. The original report of subcontracted analyses, if any, is attached to this report. The results in this report are limited to the sample(s) tested and any reproduction thereof must be made in its entirety. The client or recipient of this report is specifically prohibited from making material changes to said report and, to the extent that such changes are made, Calscience is not responsible, legally or otherwise. The client or recipient agrees to indemnify Calscience for any defense to any litigation which may arise.

9 Page 2 of 79 Contents Client Project Name: Acosta / Work Order Number: Work Order Narrative Sample Summary Detections Summary Client Sample Data EPA 8015B (M) C6-C44 (Solid) EPA 6010B/7471A CAC Title 22 Metals (Solid) EPA 7471A Mercury (Solid) EPA 8260B Volatile Organics + Oxygenates (Solid) Quality Control Sample Data MS/MSD LCS/LCSD Sample Analysis Summary Glossary of Terms and Qualifiers Chain of Custody/Sample Receipt Form

10 Page 3 of 79 Work Order Narrative Page 1 of 1 Condition Upon Receipt: Samples were received under Chain of Custody (COC) on 05/27/14. They were assigned to Work Order 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 Table II that is designated as "analyze immediately" with a holding time of <= 15 minutes (40CFR 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: 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. Subcontractor Information: Unless otherwise noted below (or on the subcontract form), no samples were subcontracted.

11 Page 4 of 79 Sample Summary Client: Attn: Evan Privett Project Name: Acosta / PO Number: Received: Number of Containers: 05/27/14 14:24 10 Sample Identification Lab Number Collection Date and Time Number of Containers SP /27/14 10:30 1 Solid SP /27/14 10:40 1 Solid SP /27/14 10:50 1 Solid SP /27/14 10:55 1 Solid SP /27/14 11:05 1 Solid SP /27/14 11:15 1 Solid SP /27/14 11:20 1 Solid SP /27/14 11:30 1 Solid SP /27/14 11:45 1 Solid SP /27/14 11:55 1 Solid Matrix

12 Page 5 of 79 Detections Summary Client: Project Name: Acosta / Received: 05/27/14 Attn: Evan Privett Page 1 of 6 Client SampleID Analyte Result Qualifiers RL Units Method Extraction SP1 ( ) Arsenic mg/kg EPA 6010B EPA 3050B Barium mg/kg EPA 6010B EPA 3050B Beryllium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B C23-C mg/kg EPA 8015B (M) EPA 3550B C25-C mg/kg EPA 8015B (M) EPA 3550B C29-C mg/kg EPA 8015B (M) EPA 3550B C33-C mg/kg EPA 8015B (M) EPA 3550B C37-C mg/kg EPA 8015B (M) EPA 3550B C41-C mg/kg EPA 8015B (M) EPA 3550B C6-C44 Total mg/kg EPA 8015B (M) EPA 3550B SP2 ( ) Arsenic mg/kg EPA 6010B EPA 3050B Barium mg/kg EPA 6010B EPA 3050B Beryllium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B C19-C mg/kg EPA 8015B (M) EPA 3550B C21-C mg/kg EPA 8015B (M) EPA 3550B C23-C mg/kg EPA 8015B (M) EPA 3550B C25-C mg/kg EPA 8015B (M) EPA 3550B C29-C mg/kg EPA 8015B (M) EPA 3550B C33-C mg/kg EPA 8015B (M) EPA 3550B C37-C mg/kg EPA 8015B (M) EPA 3550B C41-C mg/kg EPA 8015B (M) EPA 3550B C6-C44 Total mg/kg EPA 8015B (M) EPA 3550B * MDL is shown

13 Page 6 of 79 Detections Summary Client: Project Name: Acosta / Received: 05/27/14 Attn: Evan Privett Page 2 of 6 Client SampleID Analyte Result Qualifiers RL Units Method Extraction SP3 ( ) Arsenic mg/kg EPA 6010B EPA 3050B Barium mg/kg EPA 6010B EPA 3050B Beryllium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B C19-C mg/kg EPA 8015B (M) EPA 3550B C21-C mg/kg EPA 8015B (M) EPA 3550B C23-C mg/kg EPA 8015B (M) EPA 3550B C25-C mg/kg EPA 8015B (M) EPA 3550B C29-C mg/kg EPA 8015B (M) EPA 3550B C33-C mg/kg EPA 8015B (M) EPA 3550B C37-C mg/kg EPA 8015B (M) EPA 3550B C41-C mg/kg EPA 8015B (M) EPA 3550B C6-C44 Total mg/kg EPA 8015B (M) EPA 3550B SP4 ( ) Arsenic mg/kg EPA 6010B EPA 3050B Barium mg/kg EPA 6010B EPA 3050B Beryllium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B C23-C mg/kg EPA 8015B (M) EPA 3550B C25-C mg/kg EPA 8015B (M) EPA 3550B C29-C mg/kg EPA 8015B (M) EPA 3550B C33-C mg/kg EPA 8015B (M) EPA 3550B C37-C mg/kg EPA 8015B (M) EPA 3550B C41-C mg/kg EPA 8015B (M) EPA 3550B C6-C44 Total mg/kg EPA 8015B (M) EPA 3550B * MDL is shown

14 Page 7 of 79 Detections Summary Client: Project Name: Acosta / Received: 05/27/14 Attn: Evan Privett Page 3 of 6 Client SampleID Analyte Result Qualifiers RL Units Method Extraction SP5 ( ) Arsenic mg/kg EPA 6010B EPA 3050B Barium mg/kg EPA 6010B EPA 3050B Beryllium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B C23-C mg/kg EPA 8015B (M) EPA 3550B C25-C mg/kg EPA 8015B (M) EPA 3550B C29-C mg/kg EPA 8015B (M) EPA 3550B C33-C mg/kg EPA 8015B (M) EPA 3550B C37-C mg/kg EPA 8015B (M) EPA 3550B C41-C mg/kg EPA 8015B (M) EPA 3550B C6-C44 Total mg/kg EPA 8015B (M) EPA 3550B SP6 ( ) Arsenic mg/kg EPA 6010B EPA 3050B Barium mg/kg EPA 6010B EPA 3050B Beryllium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B C25-C mg/kg EPA 8015B (M) EPA 3550B C29-C mg/kg EPA 8015B (M) EPA 3550B C33-C mg/kg EPA 8015B (M) EPA 3550B C37-C mg/kg EPA 8015B (M) EPA 3550B C41-C mg/kg EPA 8015B (M) EPA 3550B C6-C44 Total mg/kg EPA 8015B (M) EPA 3550B * MDL is shown

15 Page 8 of 79 Detections Summary Client: Project Name: Acosta / Received: 05/27/14 Attn: Evan Privett Page 4 of 6 Client SampleID Analyte Result Qualifiers RL Units Method Extraction SP7 ( ) Arsenic mg/kg EPA 6010B EPA 3050B Barium mg/kg EPA 6010B EPA 3050B Beryllium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B C17-C mg/kg EPA 8015B (M) EPA 3550B C19-C mg/kg EPA 8015B (M) EPA 3550B C21-C mg/kg EPA 8015B (M) EPA 3550B C23-C mg/kg EPA 8015B (M) EPA 3550B C25-C mg/kg EPA 8015B (M) EPA 3550B C29-C mg/kg EPA 8015B (M) EPA 3550B C33-C mg/kg EPA 8015B (M) EPA 3550B C37-C mg/kg EPA 8015B (M) EPA 3550B C41-C mg/kg EPA 8015B (M) EPA 3550B C6-C44 Total mg/kg EPA 8015B (M) EPA 3550B SP8 ( ) Arsenic mg/kg EPA 6010B EPA 3050B Barium mg/kg EPA 6010B EPA 3050B Beryllium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B C25-C mg/kg EPA 8015B (M) EPA 3550B C29-C mg/kg EPA 8015B (M) EPA 3550B C33-C mg/kg EPA 8015B (M) EPA 3550B C37-C mg/kg EPA 8015B (M) EPA 3550B C41-C mg/kg EPA 8015B (M) EPA 3550B C6-C44 Total mg/kg EPA 8015B (M) EPA 3550B * MDL is shown

16 Page 9 of 79 Detections Summary Client: Project Name: Acosta / Received: 05/27/14 Attn: Evan Privett Page 5 of 6 Client SampleID Analyte Result Qualifiers RL Units Method Extraction SP9 ( ) Arsenic mg/kg EPA 6010B EPA 3050B Barium mg/kg EPA 6010B EPA 3050B Beryllium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B C25-C mg/kg EPA 8015B (M) EPA 3550B C29-C mg/kg EPA 8015B (M) EPA 3550B C33-C mg/kg EPA 8015B (M) EPA 3550B C37-C mg/kg EPA 8015B (M) EPA 3550B C41-C mg/kg EPA 8015B (M) EPA 3550B C6-C44 Total mg/kg EPA 8015B (M) EPA 3550B SP10 ( ) Arsenic mg/kg EPA 6010B EPA 3050B Barium mg/kg EPA 6010B EPA 3050B Beryllium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Molybdenum mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B C23-C mg/kg EPA 8015B (M) EPA 3550B C25-C mg/kg EPA 8015B (M) EPA 3550B C29-C mg/kg EPA 8015B (M) EPA 3550B C33-C mg/kg EPA 8015B (M) EPA 3550B C37-C mg/kg EPA 8015B (M) EPA 3550B C41-C mg/kg EPA 8015B (M) EPA 3550B C6-C44 Total mg/kg EPA 8015B (M) EPA 3550B * MDL is shown

17 Page 10 of 79 Detections Summary Client: Project Name: Acosta / Received: 05/27/14 Attn: Evan Privett Page 6 of 6 Client SampleID Analyte Result Qualifiers RL Units Method Extraction Subcontracted analyses, if any, are not included in this summary. * MDL is shown

18 Page 11 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 1 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 10:30 Comment(s): Matrix Instrument Date Prepared Analyzed Solid GC 48 05/28/14 05/28/14 19:01 - The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C18 ND C19-C20 ND C21-C22 ND C23-C C25-C C29-C C33-C C37-C C41-C C6-C44 Total QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

19 Page 12 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 2 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 10:40 Comment(s): Matrix Instrument Date Prepared Analyzed Solid GC 48 05/28/14 05/28/14 19:17 - The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C18 ND C19-C C21-C C23-C C25-C C29-C C33-C C37-C C41-C C6-C44 Total QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

20 Page 13 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 3 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 10:50 Comment(s): Matrix Instrument Date Prepared Analyzed Solid GC 48 05/28/14 05/28/14 19:32 - The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C18 ND C19-C C21-C C23-C C25-C C29-C C33-C C37-C C41-C C6-C44 Total QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

21 Page 14 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 4 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 10:55 Comment(s): Matrix Instrument Date Prepared Analyzed Solid GC 48 05/28/14 05/28/14 19:49 - The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C18 ND C19-C20 ND C21-C22 ND C23-C C25-C C29-C C33-C C37-C C41-C C6-C44 Total QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

22 Page 15 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 5 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:05 Comment(s): Matrix Instrument Date Prepared Analyzed Solid GC 48 05/28/14 05/28/14 20:05 - The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C18 ND C19-C20 ND C21-C22 ND C23-C C25-C C29-C C33-C C37-C C41-C C6-C44 Total QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

23 Page 16 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 6 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:15 Comment(s): Matrix Instrument Date Prepared Analyzed Solid GC 48 05/28/14 05/28/14 20:20 - The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C18 ND C19-C20 ND C21-C22 ND C23-C24 ND C25-C C29-C C33-C C37-C C41-C C6-C44 Total QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

24 Page 17 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 7 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:20 Comment(s): Matrix Instrument Date Prepared Analyzed Solid GC 48 05/28/14 05/28/14 20:36 - The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C C19-C C21-C C23-C C25-C C29-C C33-C C37-C C41-C C6-C44 Total QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

25 Page 18 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 8 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:30 Comment(s): Matrix Instrument Date Prepared Analyzed Solid GC 48 05/28/14 05/28/14 20:52 - The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C18 ND C19-C20 ND C21-C22 ND C23-C24 ND C25-C C29-C C33-C C37-C C41-C C6-C44 Total QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

26 Page 19 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 9 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:45 Comment(s): Matrix Instrument Date Prepared Analyzed Solid GC 48 05/28/14 05/28/14 21:08 - The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C18 ND C19-C20 ND C21-C22 ND C23-C24 ND C25-C C29-C C33-C C37-C C41-C C6-C44 Total QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

27 Page 20 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 10 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:55 Comment(s): Matrix Instrument Date Prepared Analyzed Solid GC 48 05/28/14 05/28/14 21:24 - The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C18 ND C19-C20 ND C21-C22 ND C23-C C25-C C29-C C33-C C37-C C41-C C6-C44 Total QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

28 Page 21 of 79 EPA 3550B EPA 8015B (M) mg/kg Project: Acosta / Page 11 of 11 Client Sample Number Lab Sample Number Collected Matrix Instrument Date Prepared Analyzed Method Blank N/A Solid GC 48 05/28/14 05/28/14 16:37 C6 ND C7 ND C8 ND C9-C10 ND C11-C12 ND C13-C14 ND C15-C16 ND C17-C18 ND C19-C20 ND C21-C22 ND C23-C24 ND C25-C28 ND C29-C32 ND C33-C36 ND C37-C40 ND C41-C44 ND C6-C44 Total ND QC Batch ID B04 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane

29 Page 22 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 1 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 10:30 Matrix Instrument Date Prepared Analyzed Solid ICP /28/14 05/28/14 21:37 Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L01

30 Page 23 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 2 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 10:40 Matrix Instrument Date Prepared Analyzed Solid ICP /28/14 05/28/14 21:38 Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L01

31 Page 24 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 3 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 10:50 Matrix Instrument Date Prepared Analyzed Solid ICP /28/14 05/28/14 21:39 Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L01

32 Page 25 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 4 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 10:55 Matrix Instrument Date Prepared Analyzed Solid ICP /28/14 05/28/14 21:40 Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L01

33 Page 26 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 5 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:05 Matrix Instrument Date Prepared Analyzed Solid ICP /28/14 05/28/14 21:41 Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L01

34 Page 27 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 6 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:15 Matrix Instrument Date Prepared Analyzed Solid ICP /28/14 05/28/14 21:42 Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L01

35 Page 28 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 7 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:20 Matrix Instrument Date Prepared Analyzed Solid ICP /28/14 05/28/14 21:43 Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L01

36 Page 29 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 8 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:30 Matrix Instrument Date Prepared Analyzed Solid ICP /28/14 05/28/14 21:45 Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L01

37 Page 30 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 9 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:45 Matrix Instrument Date Prepared Analyzed Solid ICP /28/14 05/28/14 21:51 Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L01

38 Page 31 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 10 of 11 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:55 Matrix Instrument Date Prepared Analyzed Solid ICP /28/14 05/28/14 21:52 Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L01

39 Page 32 of 79 EPA 3050B EPA 6010B mg/kg Project: Acosta / Page 11 of 11 Client Sample Number Lab Sample Number Collected Matrix Instrument Date Prepared Analyzed Method Blank N/A Solid ICP /28/14 05/28/14 18:05 Antimony ND Arsenic ND Barium ND Beryllium ND Cadmium ND Chromium ND Cobalt ND Copper ND Lead ND Molybdenum ND Nickel ND Selenium ND Silver ND Thallium ND Vanadium ND Zinc ND QC Batch ID L01

40 Page 33 of 79 Client Sample Number Lab Sample Number Collected SP A 05/27/14 10:30 Matrix Instrument Date Prepared Analyzed Solid Mercury 05 05/28/14 05/29/14 17:22 Mercury ND EPA 7471A Total EPA 7471A Project: Acosta / Page 1 of 2 mg/kg QC Batch ID L07 SP A 05/27/14 10:40 Solid Mercury 05 05/28/14 05/29/14 17:24 Mercury ND L07 SP A 05/27/14 10:50 Solid Mercury 05 05/28/14 05/29/14 17:26 Mercury ND SP A 05/27/14 10:55 Solid Mercury 05 05/28/14 05/29/14 17:29 Mercury ND L L07 SP A 05/27/14 11:05 Solid Mercury 05 05/28/14 05/29/14 17:31 Mercury ND L07 SP A 05/27/14 11:15 Solid Mercury 05 05/28/14 05/29/14 17:11 Mercury ND L07 SP A 05/27/14 11:20 Solid Mercury 05 05/28/14 05/29/14 17:33 Mercury ND L07 SP A 05/27/14 11:30 Solid Mercury 05 05/28/14 05/29/14 17:35 Mercury ND L07

41 Page 34 of 79 Client Sample Number Lab Sample Number Collected SP A 05/27/14 11:45 Matrix Instrument Date Prepared Analyzed Solid Mercury 05 05/28/14 05/29/14 17:38 Mercury ND EPA 7471A Total EPA 7471A Project: Acosta / Page 2 of 2 mg/kg QC Batch ID L07 SP A 05/27/14 11:55 Solid Mercury 05 05/28/14 05/29/14 17:44 Mercury ND L07 Method Blank N/A Solid Mercury 05 05/28/14 05/29/14 17:06 Mercury ND L07

42 Page 35 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 1 of 33 Client Sample Number Lab Sample Number Collected SP B 05/27/14 10:30 Matrix Instrument Date Prepared Analyzed Solid GC/MS LL 05/27/14 05/27/14 17:07 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

43 Page 36 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 2 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

44 Page 37 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 3 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

45 Page 38 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 4 of 33 Client Sample Number Lab Sample Number Collected SP B 05/27/14 10:40 Matrix Instrument Date Prepared Analyzed Solid GC/MS LL 05/27/14 05/27/14 19:01 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

46 Page 39 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 5 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

47 Page 40 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 6 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

48 Page 41 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 7 of 33 Client Sample Number Lab Sample Number Collected SP B 05/27/14 10:50 Matrix Instrument Date Prepared Analyzed Solid GC/MS LL 05/27/14 05/27/14 19:30 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

49 Page 42 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 8 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

50 Page 43 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 9 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

51 Page 44 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 10 of 33 Client Sample Number Lab Sample Number Collected SP B 05/27/14 10:55 Matrix Instrument Date Prepared Analyzed Solid GC/MS LL 05/27/14 05/27/14 19:58 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

52 Page 45 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 11 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

53 Page 46 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 12 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

54 Page 47 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 13 of 33 Client Sample Number Lab Sample Number Collected SP B 05/27/14 11:05 Matrix Instrument Date Prepared Analyzed Solid GC/MS LL 05/27/14 05/27/14 20:27 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

55 Page 48 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 14 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

56 Page 49 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 15 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

57 Page 50 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 16 of 33 Client Sample Number Lab Sample Number Collected SP B 05/27/14 11:15 Matrix Instrument Date Prepared Analyzed Solid GC/MS LL 05/27/14 05/27/14 20:55 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

58 Page 51 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 17 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

59 Page 52 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 18 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

60 Page 53 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 19 of 33 Client Sample Number Lab Sample Number Collected SP B 05/27/14 11:20 Matrix Instrument Date Prepared Analyzed Solid GC/MS LL 05/27/14 05/27/14 21:24 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

61 Page 54 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 20 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

62 Page 55 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 21 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

63 Page 56 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 22 of 33 Client Sample Number Lab Sample Number Collected SP B 05/27/14 11:30 Matrix Instrument Date Prepared Analyzed Solid GC/MS LL 05/27/14 05/27/14 21:52 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

64 Page 57 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 23 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

65 Page 58 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 24 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

66 Page 59 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 25 of 33 Client Sample Number Lab Sample Number Collected SP B 05/27/14 11:45 Matrix Instrument Date Prepared Analyzed Solid GC/MS LL 05/27/14 05/27/14 22:20 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

67 Page 60 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 26 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

68 Page 61 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 27 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

69 Page 62 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 28 of 33 Client Sample Number Lab Sample Number Collected SP B 05/27/14 11:55 Matrix Instrument Date Prepared Analyzed Solid GC/MS LL 05/27/14 05/27/14 22:49 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

70 Page 63 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 29 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

71 Page 64 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 30 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

72 Page 65 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 31 of 33 Client Sample Number Lab Sample Number Collected Matrix Instrument Date Prepared Analyzed Method Blank N/A Solid GC/MS LL 05/27/14 05/27/14 14:39 Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L028

73 Page 66 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 32 of 33 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND Trichlorofluoromethane ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene

74 Page 67 of 79 EPA 5030C EPA 8260B ug/kg Project: Acosta / Page 33 of 33 Surrogate Rec. (%) Control Limits Qualifiers Dibromofluoromethane ,2-Dichloroethane-d Toluene-d

75 Page 68 of 79 Quality Control - Spike/Spike Duplicate EPA 3550B EPA 8015B (M) Project: Acosta / Page 1 of 4 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number SP10 Sample Solid GC 48 05/28/14 05/28/14 21: S04 SP10 Matrix Spike Solid GC 48 05/28/14 05/28/14 18: S04 SP10 Matrix Spike Duplicate Solid GC 48 05/28/14 05/28/14 18: S04 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers TPH as Diesel RPD: Relative Percent Difference. CL: Control Limits

76 Page 69 of 79 Quality Control - Spike/Spike Duplicate EPA 3050B EPA 6010B Project: Acosta / Page 2 of 4 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number SP6 Sample Solid ICP /28/14 05/28/14 21: S01 SP6 Matrix Spike Solid ICP /28/14 05/28/14 21: S01 SP6 Matrix Spike Duplicate Solid ICP /28/14 05/28/14 21: S01 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Antimony ND Arsenic Barium Beryllium Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc RPD: Relative Percent Difference. CL: Control Limits

77 Page 70 of 79 Quality Control - Spike/Spike Duplicate EPA 7471A Total EPA 7471A Project: Acosta / Page 3 of 4 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number SP6 Sample Solid Mercury 05 05/28/14 05/29/14 17: S07 SP6 Matrix Spike Solid Mercury 05 05/28/14 05/29/14 17: S07 SP6 Matrix Spike Duplicate Solid Mercury 05 05/28/14 05/29/14 17: S07 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Mercury ND RPD: Relative Percent Difference. CL: Control Limits

78 Page 71 of 79 Quality Control - Spike/Spike Duplicate EPA 5030C EPA 8260B Project: Acosta / Page 4 of 4 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number SP1 Sample Solid GC/MS LL 05/27/14 05/27/14 17: S025 SP1 Matrix Spike Solid GC/MS LL 05/27/14 05/27/14 17: S025 SP1 Matrix Spike Duplicate Solid GC/MS LL 05/27/14 05/27/14 18: S025 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Benzene ND Carbon Tetrachloride ND Chlorobenzene ND ,2-Dibromoethane ND ,2-Dichlorobenzene ND ,2-Dichloroethane ND ,1-Dichloroethene ND Ethylbenzene ND Toluene ND Trichloroethene ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Tert-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Tert-Amyl-Methyl Ether (TAME) ND Ethanol ND RPD: Relative Percent Difference. CL: Control Limits

79 Page 72 of 79 Quality Control - LCS EPA 3550B EPA 8015B (M) Project: Acosta / Page 1 of 4 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC 48 05/28/14 05/28/14 18: B04 Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL Qualifiers TPH as Diesel RPD: Relative Percent Difference. CL: Control Limits

80 Page 73 of 79 Quality Control - LCS EPA 3050B EPA 6010B Project: Acosta / Page 2 of 4 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid ICP /28/14 05/28/14 18: L01 Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL ME CL Qualifiers Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc Total number of LCS compounds: 16 Total number of ME compounds: 0 Total number of ME compounds allowed: 1 LCS ME CL validation result: Pass RPD: Relative Percent Difference. CL: Control Limits

81 Page 74 of 79 Quality Control - LCS EPA 7471A Total EPA 7471A Project: Acosta / Page 3 of 4 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid Mercury 05 05/28/14 05/29/14 17: L07 Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL Qualifiers Mercury RPD: Relative Percent Difference. CL: Control Limits

82 Page 75 of 79 Quality Control - LCS EPA 5030C EPA 8260B Project: Acosta / Page 4 of 4 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC/MS LL 05/27/14 05/27/14 13: L028 Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL ME CL Qualifiers Benzene Carbon Tetrachloride Chlorobenzene ,2-Dibromoethane ,2-Dichlorobenzene ,2-Dichloroethane ,1-Dichloroethene Ethylbenzene Toluene Trichloroethene Vinyl Chloride p/m-xylene o-xylene Methyl-t-Butyl Ether (MTBE) Tert-Butyl Alcohol (TBA) Diisopropyl Ether (DIPE) Ethyl-t-Butyl Ether (ETBE) Tert-Amyl-Methyl Ether (TAME) Ethanol Total number of LCS compounds: 19 Total number of ME compounds: 0 Total number of ME compounds allowed: 1 LCS ME CL validation result: Pass RPD: Relative Percent Difference. CL: Control Limits

83 Page 76 of 79 Sample Analysis Summary Report Page 1 of 1 Method Extraction Chemist ID Instrument Analytical Location EPA 6010B EPA 3050B 469 ICP EPA 7471A EPA 7471A Total 915 Mercury 05 1 EPA 8015B (M) EPA 3550B 847 GC 48 1 EPA 8260B EPA 5030C 876 GC/MS LL 2 Location 1: 7440 Lincoln Way, Garden Grove, CA Location 2: 7445 Lampson Avenue, Garden Grove, CA 92841

84 Page 77 of 79 Glossary of Terms and Qualifiers Page 1 of 1 Qualifiers Definition * See applicable analysis comment. < Less than the indicated value. > Greater than the indicated value. 1 Surrogate compound recovery was out of control due to a required sample dilution. Therefore, the sample data was reported without further clarification. 2 Surrogate compound recovery was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. 3 Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of control due to suspected matrix interference. The associated LCS recovery was in control. 4 The MS/MSD RPD was out of control due to suspected matrix interference. 5 The PDS/PDSD or PES/PESD associated with this batch of samples was out of control due to suspected matrix interference. 6 Surrogate recovery below the acceptance limit. 7 Surrogate recovery above the acceptance limit. B BU BV E ET HD HDH HDL J JA ME ND Q SG X Z Analyte was present in the associated method blank. Sample analyzed after holding time expired. Sample received after holding time expired. Concentration exceeds the calibration range. Sample was extracted past end of recommended max. holding time. The chromatographic pattern was inconsistent with the profile of the reference fuel standard. The sample chromatographic pattern for TPH matches the chromatographic pattern of the specified standard but heavier hydrocarbons were also present (or detected). The sample chromatographic pattern for TPH matches the chromatographic pattern of the specified standard but lighter hydrocarbons were also present (or detected). Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. Analyte positively identified but quantitation is an estimate. LCS Recovery Percentage is within Marginal Exceedance (ME) Control Limit range (+/- 4 SD from the mean). Parameter not detected at the indicated reporting limit. Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. The sample extract was subjected to Silica Gel treatment prior to analysis. % Recovery and/or RPD out-of-range. Analyte presence was not confirmed by second column or GC/MS analysis. Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. Any parameter identified in 40CFR Part Table II that is designated as "analyze immediately" with a holding time of <= 15 minutes (40CFR 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. A calculated total result (Example: Total Pesticides) is the summation of each component concentration and/or, if "J" flags are reported, estimated concentration. Component concentrations showing not detected (ND) are summed into the calculated total result as zero concentrations.

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