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Home My WebLink AboutClosure Report [Stantec]UST System Removal Report 7-Eleven Store #16329 1701 Pacheco Road Bakersfield, CA 93304 Stantec Project No. 185850321.400.0521 Prepared for: 7-Eleven Inc. Prepared by: Stantec Consulting Services Inc. 9179 Aero Drive San Diego, CA 92123 (619) 296-6195 May 25, 2016 UST SYSTEM REMOVAL REPORT jm v:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16329_tank_pull_rpt.docx i Table of Contents 1.0 INTRODUCTION ............................................................................................................. 1.1 1.1 PURPOSE AND SCOPE OF WORK ................................................................................... 1.1 1.2 BACKGROUND .................................................................................................................. 1.1 2.0 FACILITY DESCRIPTION ................................................................................................. 2.4 2.1 SITE LOCATION .................................................................................................................. 2.4 2.2 SITE DESCRIPTION .............................................................................................................. 2.4 3.0 FIELD ACTIVITIES ............................................................................................................ 3.5 3.1 UST REMOVAL ACTIVITIES ................................................................................................. 3.5 3.2 SOIL SAMPLING ACTIVITIES .............................................................................................. 3.5 3.3 ANALYTICAL METHODS .................................................................................................... 3.5 4.0 ANALYTICAL RESULTS .................................................................................................... 4.6 5.0 SUMMARY ...................................................................................................................... 5.7 6.0 RECOMMENDATIONS ................................................................................................... 6.8 7.0 REFERENCES................................................................................................................... 7.9 TABLE Table 1 ............................................................................................. Soil Sample Analytical Results FIGURES Figure 1 ............................................................................................................... Site Location Map Figure 2 ................................................................................................................................. Site Plan APPENDICES Appendix A............................................ Rinsate Manifest and Tank Certificate of Destruction Appendix B .............................................................................................. Soil Compaction Report Appendix C ........... Soil Sample Laboratory Report and Chain of Custody Documentation UST SYSTEM REMOVAL REPORT Introduction v:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16329_tank_pull_rpt.docx 1.1 1.0 Introduction This report documents underground storage tank (UST) system removal activities conducted at 7- Eleven Store No. 16329 located at 1701 Pacheco Road in Bakersfield, California (Figure 1). This work was conducted in accordance with the requirements of the Bakersfield Fire Department. Stantec Consulting Services, Inc. (Stantec) supervised soil sampling and tank removal activities. Jenal Engineering, Inc. (Jenal) conducted the UST removal activities and completed site restoration following UST removal. 1.1 PURPOSE AND SCOPE OF WORK Stantec observed the removal of three existing USTs, two dispenser islands, and the associated product and vent line piping. Stantec collected soil samples to assess subsurface conditions beneath the former UST area, the dispenser islands, and the vent lines. Stantec’s scope of work consisted of the following tasks: o Preparation of a site-specific Health and Safety Plan; o Observation of the UST removal activities; o Collection of soil samples from the UST excavation, beneath the dispenser islands, and vent lines at the direction of the Bakersfield Fire Department; o Laboratory analysis of soil samples collected; and o Preparation of this report documenting the UST removal activities. 1.2 BACKGROUND Background information was summarized from Site Conceptual Model prepared by Stantec dated March 11, 2013. Specific references for historical reports associated with the site were not readily available. In November 1984, two 10,000-gallon single-walled underground storage tanks (USTs) were removed from the site and replaced with three new 10,000-gallon double-walled USTs. Hydrocarbon-impacted soil was encountered in the UST excavation. In late 1984, soil boring B-1 and groundwater monitoring wells MW-1, MW-2, and MW-3 were installed. Between March 1989 and January 1991, five additional groundwater monitoring wells (MW-4 through MW-8) were installed. In May 1991, a vapor extraction test was conducted on wells MW-1 through MW-8. In August 1992, well EX-1 (later renamed EW-1) was installed for feasibility testing. Three wells at the site were connected for future groundwater extraction (GWE); however, GWE was never initiated. In September 1995, a soil vapor extraction (SVE) system using an internal combustion engine to UST SYSTEM REMOVAL REPORT Introduction v:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16329_tank_pull_rpt.docx 1.2 treat the extracted soil vapor was installed at the site. Soil vapors were extracted from wells EW- 1, MW-4, MW-5, and MW-7. In December 1996, the catalytic oxidizer was replaced with a five-horsepower vacuum blower and two 1,200-pound granulated activated carbon vessels in series for vapor abatement. Soil vapors were extracted from wells MW-4, MW-5, and MW-6. On January 30, 1997, soil samples were collected beneath the two fuel dispensers at the site at depths of two and six feet below ground surface (bgs). Benzene concentrations up to 53 milligrams per kilogram (mg/kg) ant total petroleum hydrocarbons as gasoline (TPHg) concentrations up to 15,000 mg/kg were reported in sample D2-2’, collected beneath the southern fuel dispenser at two feet bgs. On July 30, 1997, a dual-nested vapor extraction well (SVE-1) and a single-nested air sparge well (SP-1) were installed. In the first quarter 1998, the carbon system was replaced with a 250 cubic foot per minute (cfm) thermal oxidizing unit. The enhanced SVE system (with air sparging [AS] into well SP-1 and extraction using SVE well SVE-1) was started on June 3, 1998. A total of 1,725 pounds of hydrocarbons were destroyed by the new system between June 3, 1998 and December 8, 1998. Overall, the earlier and later systems together reportedly destroyed a total of 3,974 pounds of hydrocarbons at the site. In September 1999, IT Corporation supervised the advancement of five Geoprobe soil borings (GP-1 through GP-5) to depths ranging from 45 to 55 feet bgs as part of closure applicability demonstration. The highest benzene concentration (1.46 mg/kg) was detected in the sample collected from soil boring GP-3 at 30 feet bgs. The highest TPHg concentration (608 mg/kg) was detected in the same borehole at a depth of 35 feet bgs. A request for closure and subsequent risk evaluation of residual dissolved gasoline constituents was submitted to the California Regional Water Quality Control Board (CRWQCB) for review. The CRWQCB subsequently indicated closure could not be approved based on remaining dissolved TPHg levels, including concentrations of up to 14,500 micrograms per liter (μg/L) in well MW-1. In a letter dated August 2, 2001, the Kern County Environmental Health Division (KCEHD) approved the use of hydrogen peroxide injection and semi-annual monitoring and sampling. Spot treatment via periodic hydrogen peroxide injection once a month into wells EW-1 and SP-1 was initiated in the fourth quarter 2001. Approximately five gallons of 35% hydrogen peroxide were injected into each well during treatment. From January to November 2002, Shaw Environmental Inc. (Shaw) injected approximately 100 gallons of 35% hydrogen peroxide into wells SP-1 and EW-1 over approximately 11 events. In response to a site closure request presented in the Third Quarter 2002-Post Remediation Status Report and Request for Closure, the KCEHD denied site closure in a letter dated December 6, 2002. The KCEHD directed continuation of monthly hydrogen peroxide injection and semi-annual groundwater monitoring and sampling. The agency indicated closure would be considered UST SYSTEM REMOVAL REPORT Introduction v:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16329_tank_pull_rpt.docx 1.3 when the dissolved benzene concentrations fell below 1 μg/L or a significant trend of decreasing benzene concentrations was documented. In the Corrective Action Plan Modification dated June 23, 2004, SECOR International Inc. (SECOR) requested supplementing the hydrogen peroxide remedial program with oxygen injection. In a letter dated June 29, 2004, the KCEHD approved the use of oxygen injection as a supplemental remediation technique. SECOR began oxygen injection into well SP-1D on April 13, 2004. The KCEHD also approved the installation of two additional injection points to increase the distribution of dissolved oxygen. On September 9 and 10, 2004, SECOR supervised the drilling of oxygen injection well SP-2. Due to a concrete drain line obstruction, SP-3 was moved into the street and drilling and installation of the well was not completed until November 3, 2004. Lateral piping was stubbed up in the well box of SP-3 for a future connection between the sparge well and a well box in the sidewalk. On April 27, 2005, SECOR supervised the trenching and connection of oxygen injection well SP-3 to the injection manifold in a well box in the sidewalk. On June 1, 2008, SECOR International Inc. became Stantec Consulting Corporation (now Stantec Consulting Services Inc. [Stantec]). Stantec ceased oxygen injection after the June 25, 2012, injection event as approved by the KCEHD in an email dated July 2, 2012. Stantec submitted a Work Plan for Additional Site Assessment dated October 30, 2012 to the KCEHD. The work plan was approved by the KCEHD on November 13, 2012 with the condition that soil sampling locations be located near the residual plume, closer to MW-1, MW-5, and EW-1. In a letter dated December 19, 2012, from the KCEHD, Stantec was notified that oversight of the site was transferred to the Central Valley Regional Water Quality Control Board (RWQCB). The RWQCB responded to the October 30, 2012 work plan in an e-mail dated January 10, 2013. In this e-mail the RWQCB concurred with the location of borings GP-8 and GP-9, but requested that these borings be drilled as close as possible to the southern dispenser island. The RWQCB also requested the soil samples be collected from the most contaminated depth between zero and five feet bgs and from the most contaminated depth between five and ten feet bgs. Additionally, the RWQCB indicated that the soil samples only needed to be analyzed for benzene, ethylbenzene, and naphthalene. On February 5, 2013, Stantec supervised as National Exploration Wells & Pumps (National) advanced direct-push soil borings GP-6 through GP-9. On March 11, 2013, Stantec submitted the Additional Site Assessment Report and Site Conceptual Model to the RWQCB, which also included an updated Sensitive Receptor Survey within a 1,000-foot radius. Stantec recommended that the site be considered for closure under the State Water Resources Control Board Low Threat Closure Policy. In October 2013, Stantec supervised the destruction of all monitoring and remediation wells. On November 5, 2013, the Central Valley RWQCB issued a case closure letter for the site. UST SYSTEM REMOVAL REPORT Facility Description v:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16329_tank_pull_rpt.docx 2.4 2.0 Facility Description 2.1 SITE LOCATION The site is located at the southwest corner of the intersection of Pacheco Road and South H Street in Bakersfield, Kern County, California (Figure 1). The property is bounded to the north and east by Pacheco Road and South H Street, respectively. The site is located in a commercial area, with residences immediately adjacent to the west. 2.2 SITE DESCRIPTION The site is an operating 7-Eleven convenience store (Figure 2). Three 10,000-gallon double- walled steel USTs were located in the northeastern portion of the property. A concrete dispenser island pad with two dispensers was located just south of the USTs. The USTs and dispenser islands were paved with concrete, and the rest of the site was paved with asphalt. The USTs were not replaced. The UST and dispenser locations were repaved with asphalt following UST removal. UST SYSTEM REMOVAL REPORT Field Activities v:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16329_tank_pull_rpt.docx 3.5 3.0 Field Activities 3.1 UST REMOVAL ACTIVITIES On April 7, 2016, Stantec observed the removal of three 10,000-gallon steel USTs at the site. The USTs were triple rinsed prior to removal. Under the direction of the Bakersfield Fire Department, the tanks were approved for removal. The tanks were transported to Western Scrap, Inc. in Bakersfield, California for disposal. The rinsate manifest and tank certificate of destruction for the USTs are provided in Appendix A. The UST overburden soil (mainly pea gravel) was stockpiled during the UST removal activities and placed back into the bottom of the excavation following UST removal. Clean, imported fill was placed into the remainder of the excavation in one-foot thick lifts, and compacted using a vibrating roller. The top foot of the excavation was backfilled with Class A road base and compacted prior to completion of the site surface with asphalt. The soil compaction report is included in Appendix B. 3.2 SOIL SAMPLING ACTIVITIES On April 5 and 7, 2016, Stantec personnel collected nine soil samples under the direction of the Bakersfield Fire Department. Soil samples were obtained beneath each end of each UST (six samples total), beneath the former dispenser islands (two samples total), and beneath the former vent lines (one sample total). The soil samples beneath the USTs were collected using an excavator bucket. The soil samples beneath the dispensers and vent lines were collected with a hand auger. The soil samples were collected in glass jars, and each jar was completely filled to minimize headspace. The jars were sealed with a Teflon™-lined plastic cap, labeled, and placed on ice in a cooler. 3.3 ANALYTICAL METHODS The soil samples were delivered under chain-of-custody to Test America Laboratories, Inc., a California state-certified laboratory located in Nashville, Tennessee. The soil samples were analyzed for TPHg, benzene, toluene, ethylbenzene and total xylenes (BTEX), and methyl-tert- butyl ether (MTBE) using Environmental Protection Agency (EPA) Test Method 8260. In addition, the samples were analyzed for tert-amyl-methyl ether (TAME), t-butyl alcohol (TBA), diisopropyl ether (DIPE), and ethyl-t-butyl ether (ETBE) using EPA Test Method 8260. UST SYSTEM REMOVAL REPORT Analytical Results v:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16329_tank_pull_rpt.docx 4.6 4.0 Analytical Results TPHg, BTEX, TBA, TAME, DIPE, ETBE, and MTBE were not detected in any of the nine soil samples soil samples above laboratory reporting limits ranging from 0.00182 mg/kg to 0.0963 mg/kg. Analytical results are summarized in Table 1. Complete laboratory results and chain-of-custody documentation are included in Appendix C. UST SYSTEM REMOVAL REPORT Summary v:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16329_tank_pull_rpt.docx 5.7 5.0 Summary Three 10,000-gallon steel USTs were removed from the site on April 7, 2016. Nine soil samples were collected beneath the USTs, dispenser islands, and vent lines. The USTs were not replaced, and the site was resurfaced with asphalt following the completion of backfill and compaction. TPHg, BTEX, TBA, TAME, DIPE, ETBE, and MTBE were not detected in any of the nine soil samples soil samples above laboratory reporting limits ranging from 0.00182 mg/kg to 0.0963 mg/kg. UST SYSTEM REMOVAL REPORT Recommendations v:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16329_tank_pull_rpt.docx 6.8 6.0 Recommendations Based on the analytical results, no additional assessment is recommended. UST SYSTEM REMOVAL REPORT References v:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16329_tank_pull_rpt.docx 7.9 7.0 References Stantec Consulting Services Inc., 2013, Site Conceptual Model, 7-Eleven Location No. 16329, 1701 Pacheco Road, Bakersfield, California, dated March 11. TABLE V:\1858\active\185850321\05_report_deliv\deliverables\reports\2016_ust_16359_tank_pull_tbl.xlsx Page 1 of 1 Sample ID Depth in Feet Sample Date TPHg Benzene Toluene Ethyl- benzene Total Xylenes TAME TBA DIPE ETBE MTBE T2-W-15 15 04/07/16 <0.0935 <0.00191 <0.00191 <0.00191 <0.00573 <0.00191 <0.0477 <0.00191 <0.00477 <0.00191 T2-E-15 15 04/07/16 <0.0949 <0.00184 <0.00184 <0.00184 <0.00552 <0.00184 <0.0460 <0.00184 <0.00460 <0.00184 T1-W-15 15 04/07/16 <0.0949 <0.00200 <0.00200 <0.00200 <0.00599 <0.00200 <0.0499 <0.00200 <0.00499 <0.00200 T1-E-15 15 04/07/16 <0.0835 <0.00175 <0.00175 <0.00175 <0.00526 <0.00175 <0.0439 <0.00175 <0.00439 <0.00175 T3-W-15 15 04/07/16 <0.0962 <0.00183 <0.00183 <0.00183 <0.00548 <0.00183 <0.0457 <0.00183 <0.00457 <0.00183 T3-E-15 15 04/07/16 <0.0963 <0.00182 <0.00182 <0.00182 <0.00547 <0.00182 <0.0456 <0.00182 <0.00456 <0.00182 VL-2.0 2.0 04/07/16 <0.0929 <0.00190 <0.00190 <0.00190 <0.00571 <0.00190 <0.0476 <0.00190 <0.00476 <0.00190 D1-4.5 4.5 04/05/16 <0.0947 <0.00187 <0.00187 <0.00187 <0.00560 <0.00187 <0.0466 <0.00187 <0.00466 <0.00187 D2-4.5 4.5 04/05/16 <0.0887 <0.00199 <0.00199 <0.00199 <0.00596 <0.00199 <0.0497 <0.00199 <0.00497 <0.00199 Notes: TPHg =Total petroleum hydrocarbons characterized as gasoline TAME =T-amyl methyl ether TBA =T-butyl alcohol DIPE =Di-isopropyl ether ETBE =Ethyl-t-butyl ether MTBE =Methyl-t-butyl ether <# =Below the laboratory reporting limit shown -- =Not Analyzed TABLE 1 SOIL SAMPLE ANALYTICAL RESULTS 7-Eleven Store No. 16329 All concentrations in milligrams per kilogram (mg/kg). FIGURES SITE N PA C H E C O R O A D SOUTH "H" STREET 7-ELEVENSTORE NO. 1632 9 PL A N T E R CONCRETE CO N C R E T E ISL A N D DISP E N S E R DISP E N S E R ISL A N D CANOPY CU R R E N T U S T S ELEVENVL-2.0' D2 - 4 . 5 ' D1 - 4 . 5 ' T3 - W - 1 5 ' T3 - E - 1 5 ' T2 - W - 1 5 ' T2 - E - 1 5 ' T1 - E - 1 5 ' T1 - W - 1 5 ' PLA N T E R FO R M E R U S T s (R E M O V E D I N 19 8 4 ) TH I S F I G U R E I S B A S E D O N A " S I T E P L A N " PR O V I D E D B Y S H A W E & I , I N C . , D A T E D JU L Y 2 0 0 2 , A N D I S I N T E N D E D F O R IL L U S T R A T I O N O N L Y . RE F E R E N C E : 0 20 40 SC A L E I N F E E T CA N O P Y PR O P E R T Y B O U N D A R Y SO I L S A M P L E L O C A T I O N N APPENDIX A RINSATE MANIFEST AND TANK CERTIFICATE OF DESTRUCTION APPENDIX B SOIL COMPACTION REPORT APPENDIX C Soil Sample Laboratory Report and Chain-of-Custody Documentation ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Nashville 2960 Foster Creighton Drive Nashville, TN 37204 Tel: (615)726-0177 TestAmerica Job ID: 490-101457-1 Client Project/Site: 7-Eleven #16329 For: Stantec Consulting Corp. 9179 Aero Drive San Diego, California 92123 Attn: Pat McConnell Authorized for release by: 4/20/2016 1:58:41 PM Heather Wagner, Project Manager I (615)301-5763 heather.wagner@testamericainc.com The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2 3 4 5 6 7 8 9 10 11 12 13 Table of Contents Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 TestAmerica Job ID: 490-101457-1 Page 2 of 28 TestAmerica Nashville4/20/2016 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 1 2 3 4 5 6 7 8 9 10 11 12 13 Sample Summary TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Lab Sample ID Client Sample ID ReceivedCollectedMatrix 490-101457-1 T2-W-15 Solid 04/07/16 10:06 04/12/16 09:30 490-101457-2 T2-E-15 Solid 04/07/16 10:03 04/12/16 09:30 490-101457-3 T1-W-15 Solid 04/07/16 10:13 04/12/16 09:30 490-101457-4 T1-E-15 Solid 04/07/16 10:10 04/12/16 09:30 490-101457-5 T3-W-15 Solid 04/07/16 09:50 04/12/16 09:30 490-101457-6 T3-E-15 Solid 04/07/16 09:45 04/12/16 09:30 490-101457-7 VL-2.0 Solid 04/07/16 09:00 04/12/16 09:30 490-101457-8 D1-4.5 Solid 04/05/16 11:00 04/12/16 09:30 490-101457-9 D2-4.5 Solid 04/05/16 11:15 04/12/16 09:30 TestAmerica Nashville Page 3 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Case Narrative Client: Stantec Consulting Corp.TestAmerica Job ID: 490-101457-1 Project/Site: 7-Eleven #16329 Job ID: 490-101457-1 Laboratory: TestAmerica Nashville Narrative Job Narrative 490-101457-1 Comments No additional comments. Receipt The samples were received on 4/12/2016 9:30 AM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was 3.2º C. GC/MS VOA Method(s) 8260B: Internal standard responses were outside of acceptance limits for the following samples: T2-E-15 (490-101457-2) and T1-E-15 (490-101457-4). The sample(s) shows evidence of matrix interference. The failing internal standard is not associated with target analytes in this batch. No impact on data. Method(s) 8260B: Surrogate recovery for the following samples was outside control limits: T2-W-15 (490-101457-1), T2-E-15 (490-101457-2), T1-W-15 (490-101457-3), T1-E-15 (490-101457-4), T3-E-15 (490-101457-6), D1-4.5 (490-101457-8). Evidence of matrix interference is present; therefore, re-extraction and/or re-analysis was not performed. Method(s) 8260B: The method blank for analytical batch 490-331473 contained C4-C12 above the reporting limit (RL). C4-C12 is not being reported from results for this batch. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. VOA Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. TestAmerica NashvillePage 4 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Definitions/Glossary TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Qualifiers GC/MS VOA Qualifier Description X Surrogate is outside control limits Qualifier *ISTD response or retention time outside acceptable limits F1 MS and/or MSD Recovery is outside acceptance limits. Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CNF Contains no Free Liquid DER Duplicate error ratio (normalized absolute difference) Dil Fac Dilution Factor DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision level concentration MDA Minimum detectable activity EDL Estimated Detection Limit MDC Minimum detectable concentration MDL Method Detection Limit ML Minimum Level (Dioxin) NC Not Calculated ND Not detected at the reporting limit (or MDL or EDL if shown) PQL Practical Quantitation Limit QC Quality Control RER Relative error ratio RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TestAmerica Nashville Page 5 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Client Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Lab Sample ID: 490-101457-1Client Sample ID: T2-W-15 Matrix: SolidDate Collected: 04/07/16 10:06 Date Received: 04/12/16 09:30 Method: 8260B - Volatile Organic Compounds (GC/MS) RL MDL Benzene ND 0.00191 mg/Kg 04/13/16 12:43 04/14/16 16:51 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.00191 mg/Kg 04/13/16 12:43 04/14/16 16:51 1TolueneND 0.00191 mg/Kg 04/13/16 12:43 04/14/16 16:51 1EthylbenzeneND 0.00573 mg/Kg 04/13/16 12:43 04/14/16 16:51 1Xylenes, Total ND 0.00191 mg/Kg 04/13/16 12:43 04/14/16 16:51 1Methyl tert-butyl ether ND 0.00191 mg/Kg 04/13/16 12:43 04/14/16 16:51 1Tert-amyl methyl ether ND 0.0477 mg/Kg 04/13/16 12:43 04/14/16 16:51 1tert-Butyl alcohol (TBA)ND 0.00191 mg/Kg 04/13/16 12:43 04/14/16 16:51 1Diisopropyl ether ND 0.00477 mg/Kg 04/13/16 12:43 04/14/16 16:51 1Ethyl tert-butyl ether ND 0.0935 mg/Kg 04/18/16 08:27 04/19/16 08:47 1GRO (C4-C12)ND 1,2-Dichloroethane-d4 (Surr)124 70-130 04/13/16 12:43 04/14/16 16:51 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 1,2-Dichloroethane-d4 (Surr)131 X 04/18/16 08:27 04/19/16 08:47 170-130 4-Bromofluorobenzene (Surr)126 04/13/16 12:43 04/14/16 16:51 170-130 4-Bromofluorobenzene (Surr)100 04/18/16 08:27 04/19/16 08:47 170-130 Dibromofluoromethane (Surr)115 04/13/16 12:43 04/14/16 16:51 170-130 Dibromofluoromethane (Surr)112 04/18/16 08:27 04/19/16 08:47 170-130 Toluene-d8 (Surr)107 04/13/16 12:43 04/14/16 16:51 170-130 Toluene-d8 (Surr)92 04/18/16 08:27 04/19/16 08:47 170-130 TestAmerica Nashville Page 6 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Client Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Lab Sample ID: 490-101457-2Client Sample ID: T2-E-15 Matrix: SolidDate Collected: 04/07/16 10:03 Date Received: 04/12/16 09:30 Method: 8260B - Volatile Organic Compounds (GC/MS) RL MDL Benzene ND 0.00184 mg/Kg 04/13/16 12:43 04/14/16 17:22 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.00184 mg/Kg 04/13/16 12:43 04/14/16 17:22 1TolueneND 0.00184 mg/Kg 04/13/16 12:43 04/14/16 17:22 1EthylbenzeneND 0.00552 mg/Kg 04/13/16 12:43 04/14/16 17:22 1Xylenes, Total ND 0.00184 mg/Kg 04/13/16 12:43 04/14/16 17:22 1Methyl tert-butyl ether ND 0.00184 mg/Kg 04/13/16 12:43 04/14/16 17:22 1Tert-amyl methyl ether ND 0.0460 mg/Kg 04/13/16 12:43 04/14/16 17:22 1tert-Butyl alcohol (TBA)ND 0.00184 mg/Kg 04/13/16 12:43 04/14/16 17:22 1Diisopropyl ether ND 0.00460 mg/Kg 04/13/16 12:43 04/14/16 17:22 1Ethyl tert-butyl ether ND 0.0949 mg/Kg 04/13/16 12:43 04/19/16 08:15 1GRO (C4-C12)ND 1,2-Dichloroethane-d4 (Surr)134 X 70-130 04/13/16 12:43 04/14/16 17:22 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 1,2-Dichloroethane-d4 (Surr)132 X 04/13/16 12:43 04/19/16 08:15 170-130 4-Bromofluorobenzene (Surr)81 *04/13/16 12:43 04/14/16 17:22 170-130 4-Bromofluorobenzene (Surr)96 04/13/16 12:43 04/19/16 08:15 170-130 Dibromofluoromethane (Surr)118 04/13/16 12:43 04/14/16 17:22 170-130 Dibromofluoromethane (Surr)115 04/13/16 12:43 04/19/16 08:15 170-130 Toluene-d8 (Surr)107 04/13/16 12:43 04/14/16 17:22 170-130 Toluene-d8 (Surr)91 04/13/16 12:43 04/19/16 08:15 170-130 TestAmerica Nashville Page 7 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Client Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Lab Sample ID: 490-101457-3Client Sample ID: T1-W-15 Matrix: SolidDate Collected: 04/07/16 10:13 Date Received: 04/12/16 09:30 Method: 8260B - Volatile Organic Compounds (GC/MS) RL MDL Benzene ND 0.00200 mg/Kg 04/13/16 12:43 04/14/16 17:53 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.00200 mg/Kg 04/13/16 12:43 04/14/16 17:53 1TolueneND 0.00200 mg/Kg 04/13/16 12:43 04/14/16 17:53 1EthylbenzeneND 0.00599 mg/Kg 04/13/16 12:43 04/14/16 17:53 1Xylenes, Total ND 0.00200 mg/Kg 04/13/16 12:43 04/14/16 17:53 1Methyl tert-butyl ether ND 0.00200 mg/Kg 04/13/16 12:43 04/14/16 17:53 1Tert-amyl methyl ether ND 0.0499 mg/Kg 04/13/16 12:43 04/14/16 17:53 1tert-Butyl alcohol (TBA)ND 0.00200 mg/Kg 04/13/16 12:43 04/14/16 17:53 1Diisopropyl ether ND 0.00499 mg/Kg 04/13/16 12:43 04/14/16 17:53 1Ethyl tert-butyl ether ND 0.0949 mg/Kg 04/13/16 12:43 04/19/16 07:43 1GRO (C4-C12)ND 1,2-Dichloroethane-d4 (Surr)127 70-130 04/13/16 12:43 04/14/16 17:53 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 1,2-Dichloroethane-d4 (Surr)127 04/13/16 12:43 04/19/16 07:43 170-130 4-Bromofluorobenzene (Surr)131 X 04/13/16 12:43 04/14/16 17:53 170-130 4-Bromofluorobenzene (Surr)92 04/13/16 12:43 04/19/16 07:43 170-130 Dibromofluoromethane (Surr)119 04/13/16 12:43 04/14/16 17:53 170-130 Dibromofluoromethane (Surr)120 04/13/16 12:43 04/19/16 07:43 170-130 Toluene-d8 (Surr)111 04/13/16 12:43 04/14/16 17:53 170-130 Toluene-d8 (Surr)95 04/13/16 12:43 04/19/16 07:43 170-130 TestAmerica Nashville Page 8 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Client Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Lab Sample ID: 490-101457-4Client Sample ID: T1-E-15 Matrix: SolidDate Collected: 04/07/16 10:10 Date Received: 04/12/16 09:30 Method: 8260B - Volatile Organic Compounds (GC/MS) RL MDL Benzene ND 0.00175 mg/Kg 04/13/16 12:43 04/14/16 18:24 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.00175 mg/Kg 04/13/16 12:43 04/14/16 18:24 1TolueneND 0.00175 mg/Kg 04/13/16 12:43 04/14/16 18:24 1EthylbenzeneND 0.00526 mg/Kg 04/13/16 12:43 04/14/16 18:24 1Xylenes, Total ND 0.00175 mg/Kg 04/13/16 12:43 04/14/16 18:24 1Methyl tert-butyl ether ND 0.00175 mg/Kg 04/13/16 12:43 04/14/16 18:24 1Tert-amyl methyl ether ND 0.0439 mg/Kg 04/13/16 12:43 04/14/16 18:24 1tert-Butyl alcohol (TBA)ND 0.00175 mg/Kg 04/13/16 12:43 04/14/16 18:24 1Diisopropyl ether ND 0.00439 mg/Kg 04/13/16 12:43 04/14/16 18:24 1Ethyl tert-butyl ether ND 0.0835 mg/Kg 04/13/16 12:43 04/19/16 07:11 1GRO (C4-C12)ND 1,2-Dichloroethane-d4 (Surr)138 X 70-130 04/13/16 12:43 04/14/16 18:24 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 1,2-Dichloroethane-d4 (Surr)128 04/13/16 12:43 04/19/16 07:11 170-130 4-Bromofluorobenzene (Surr)82 *04/13/16 12:43 04/14/16 18:24 170-130 4-Bromofluorobenzene (Surr)92 04/13/16 12:43 04/19/16 07:11 170-130 Dibromofluoromethane (Surr)121 04/13/16 12:43 04/14/16 18:24 170-130 Dibromofluoromethane (Surr)119 04/13/16 12:43 04/19/16 07:11 170-130 Toluene-d8 (Surr)95 04/13/16 12:43 04/14/16 18:24 170-130 Toluene-d8 (Surr)93 04/13/16 12:43 04/19/16 07:11 170-130 TestAmerica Nashville Page 9 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Client Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Lab Sample ID: 490-101457-5Client Sample ID: T3-W-15 Matrix: SolidDate Collected: 04/07/16 09:50 Date Received: 04/12/16 09:30 Method: 8260B - Volatile Organic Compounds (GC/MS) RL MDL Benzene ND 0.00183 mg/Kg 04/13/16 12:43 04/14/16 18:55 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.00183 mg/Kg 04/13/16 12:43 04/14/16 18:55 1TolueneND 0.00183 mg/Kg 04/13/16 12:43 04/14/16 18:55 1EthylbenzeneND 0.00548 mg/Kg 04/13/16 12:43 04/14/16 18:55 1Xylenes, Total ND 0.00183 mg/Kg 04/13/16 12:43 04/14/16 18:55 1Methyl tert-butyl ether ND 0.00183 mg/Kg 04/13/16 12:43 04/14/16 18:55 1Tert-amyl methyl ether ND 0.0457 mg/Kg 04/13/16 12:43 04/14/16 18:55 1tert-Butyl alcohol (TBA)ND 0.00183 mg/Kg 04/13/16 12:43 04/14/16 18:55 1Diisopropyl ether ND 0.00457 mg/Kg 04/13/16 12:43 04/14/16 18:55 1Ethyl tert-butyl ether ND 0.0962 mg/Kg 04/13/16 12:43 04/19/16 06:40 1GRO (C4-C12)ND 1,2-Dichloroethane-d4 (Surr)127 70-130 04/13/16 12:43 04/14/16 18:55 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 1,2-Dichloroethane-d4 (Surr)126 04/13/16 12:43 04/19/16 06:40 170-130 4-Bromofluorobenzene (Surr)96 04/13/16 12:43 04/14/16 18:55 170-130 4-Bromofluorobenzene (Surr)101 04/13/16 12:43 04/19/16 06:40 170-130 Dibromofluoromethane (Surr)119 04/13/16 12:43 04/14/16 18:55 170-130 Dibromofluoromethane (Surr)119 04/13/16 12:43 04/19/16 06:40 170-130 Toluene-d8 (Surr)117 04/13/16 12:43 04/14/16 18:55 170-130 Toluene-d8 (Surr)95 04/13/16 12:43 04/19/16 06:40 170-130 TestAmerica Nashville Page 10 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Client Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Lab Sample ID: 490-101457-6Client Sample ID: T3-E-15 Matrix: SolidDate Collected: 04/07/16 09:45 Date Received: 04/12/16 09:30 Method: 8260B - Volatile Organic Compounds (GC/MS) RL MDL Benzene ND 0.00182 mg/Kg 04/13/16 12:43 04/14/16 19:26 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.00182 mg/Kg 04/13/16 12:43 04/14/16 19:26 1TolueneND 0.00182 mg/Kg 04/13/16 12:43 04/14/16 19:26 1EthylbenzeneND 0.00547 mg/Kg 04/13/16 12:43 04/14/16 19:26 1Xylenes, Total ND 0.00182 mg/Kg 04/13/16 12:43 04/14/16 19:26 1Methyl tert-butyl ether ND 0.00182 mg/Kg 04/13/16 12:43 04/14/16 19:26 1Tert-amyl methyl ether ND 0.0456 mg/Kg 04/13/16 12:43 04/14/16 19:26 1tert-Butyl alcohol (TBA)ND 0.00182 mg/Kg 04/13/16 12:43 04/14/16 19:26 1Diisopropyl ether ND 0.00456 mg/Kg 04/13/16 12:43 04/14/16 19:26 1Ethyl tert-butyl ether ND 0.0963 mg/Kg 04/13/16 12:43 04/19/16 06:08 1GRO (C4-C12)ND 1,2-Dichloroethane-d4 (Surr)134 X 70-130 04/13/16 12:43 04/14/16 19:26 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 1,2-Dichloroethane-d4 (Surr)125 04/13/16 12:43 04/19/16 06:08 170-130 4-Bromofluorobenzene (Surr)98 04/13/16 12:43 04/14/16 19:26 170-130 4-Bromofluorobenzene (Surr)96 04/13/16 12:43 04/19/16 06:08 170-130 Dibromofluoromethane (Surr)124 04/13/16 12:43 04/14/16 19:26 170-130 Dibromofluoromethane (Surr)122 04/13/16 12:43 04/19/16 06:08 170-130 Toluene-d8 (Surr)107 04/13/16 12:43 04/14/16 19:26 170-130 Toluene-d8 (Surr)93 04/13/16 12:43 04/19/16 06:08 170-130 TestAmerica Nashville Page 11 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Client Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Lab Sample ID: 490-101457-7Client Sample ID: VL-2.0 Matrix: SolidDate Collected: 04/07/16 09:00 Date Received: 04/12/16 09:30 Method: 8260B - Volatile Organic Compounds (GC/MS) RL MDL Benzene ND 0.00190 mg/Kg 04/13/16 12:43 04/14/16 19:57 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.00190 mg/Kg 04/13/16 12:43 04/14/16 19:57 1TolueneND 0.00190 mg/Kg 04/13/16 12:43 04/14/16 19:57 1EthylbenzeneND 0.00571 mg/Kg 04/13/16 12:43 04/14/16 19:57 1Xylenes, Total ND 0.00190 mg/Kg 04/13/16 12:43 04/14/16 19:57 1Methyl tert-butyl ether ND 0.00190 mg/Kg 04/13/16 12:43 04/14/16 19:57 1Tert-amyl methyl ether ND 0.0476 mg/Kg 04/13/16 12:43 04/14/16 19:57 1tert-Butyl alcohol (TBA)ND 0.00190 mg/Kg 04/13/16 12:43 04/14/16 19:57 1Diisopropyl ether ND 0.00476 mg/Kg 04/13/16 12:43 04/14/16 19:57 1Ethyl tert-butyl ether ND 0.0929 mg/Kg 04/13/16 12:43 04/19/16 05:36 1GRO (C4-C12)ND 1,2-Dichloroethane-d4 (Surr)124 70-130 04/13/16 12:43 04/14/16 19:57 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 1,2-Dichloroethane-d4 (Surr)126 04/13/16 12:43 04/19/16 05:36 170-130 4-Bromofluorobenzene (Surr)107 04/13/16 12:43 04/14/16 19:57 170-130 4-Bromofluorobenzene (Surr)103 04/13/16 12:43 04/19/16 05:36 170-130 Dibromofluoromethane (Surr)119 04/13/16 12:43 04/14/16 19:57 170-130 Dibromofluoromethane (Surr)120 04/13/16 12:43 04/19/16 05:36 170-130 Toluene-d8 (Surr)107 04/13/16 12:43 04/14/16 19:57 170-130 Toluene-d8 (Surr)94 04/13/16 12:43 04/19/16 05:36 170-130 TestAmerica Nashville Page 12 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Client Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Lab Sample ID: 490-101457-8Client Sample ID: D1-4.5 Matrix: SolidDate Collected: 04/05/16 11:00 Date Received: 04/12/16 09:30 Method: 8260B - Volatile Organic Compounds (GC/MS) RL MDL Benzene ND 0.00187 mg/Kg 04/13/16 12:43 04/14/16 20:29 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.00187 mg/Kg 04/13/16 12:43 04/14/16 20:29 1TolueneND 0.00187 mg/Kg 04/13/16 12:43 04/14/16 20:29 1EthylbenzeneND 0.00560 mg/Kg 04/13/16 12:43 04/14/16 20:29 1Xylenes, Total ND 0.00187 mg/Kg 04/13/16 12:43 04/14/16 20:29 1Methyl tert-butyl ether ND 0.00187 mg/Kg 04/13/16 12:43 04/14/16 20:29 1Tert-amyl methyl ether ND 0.0466 mg/Kg 04/13/16 12:43 04/14/16 20:29 1tert-Butyl alcohol (TBA)ND 0.00187 mg/Kg 04/13/16 12:43 04/14/16 20:29 1Diisopropyl ether ND 0.00466 mg/Kg 04/13/16 12:43 04/14/16 20:29 1Ethyl tert-butyl ether ND 0.0947 mg/Kg 04/13/16 12:43 04/19/16 05:04 1GRO (C4-C12)ND 1,2-Dichloroethane-d4 (Surr)124 70-130 04/13/16 12:43 04/14/16 20:29 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 1,2-Dichloroethane-d4 (Surr)132 X 04/13/16 12:43 04/19/16 05:04 170-130 4-Bromofluorobenzene (Surr)122 04/13/16 12:43 04/14/16 20:29 170-130 4-Bromofluorobenzene (Surr)101 04/13/16 12:43 04/19/16 05:04 170-130 Dibromofluoromethane (Surr)119 04/13/16 12:43 04/14/16 20:29 170-130 Dibromofluoromethane (Surr)119 04/13/16 12:43 04/19/16 05:04 170-130 Toluene-d8 (Surr)110 04/13/16 12:43 04/14/16 20:29 170-130 Toluene-d8 (Surr)100 04/13/16 12:43 04/19/16 05:04 170-130 TestAmerica Nashville Page 13 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Client Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Lab Sample ID: 490-101457-9Client Sample ID: D2-4.5 Matrix: SolidDate Collected: 04/05/16 11:15 Date Received: 04/12/16 09:30 Method: 8260B - Volatile Organic Compounds (GC/MS) RL MDL Benzene ND 0.00199 mg/Kg 04/13/16 12:43 04/14/16 21:00 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.00199 mg/Kg 04/13/16 12:43 04/14/16 21:00 1TolueneND 0.00199 mg/Kg 04/13/16 12:43 04/14/16 21:00 1EthylbenzeneND 0.00596 mg/Kg 04/13/16 12:43 04/14/16 21:00 1Xylenes, Total ND F1 0.00199 mg/Kg 04/13/16 12:43 04/14/16 21:00 1Methyl tert-butyl ether ND 0.00199 mg/Kg 04/13/16 12:43 04/14/16 21:00 1Tert-amyl methyl ether ND 0.0497 mg/Kg 04/13/16 12:43 04/14/16 21:00 1tert-Butyl alcohol (TBA)ND 0.00199 mg/Kg 04/13/16 12:43 04/14/16 21:00 1Diisopropyl ether ND 0.00497 mg/Kg 04/13/16 12:43 04/14/16 21:00 1Ethyl tert-butyl ether ND 0.0887 mg/Kg 04/13/16 12:43 04/19/16 04:32 1GRO (C4-C12)ND 1,2-Dichloroethane-d4 (Surr)128 70-130 04/13/16 12:43 04/14/16 21:00 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 1,2-Dichloroethane-d4 (Surr)128 04/13/16 12:43 04/19/16 04:32 170-130 4-Bromofluorobenzene (Surr)75 04/13/16 12:43 04/14/16 21:00 170-130 4-Bromofluorobenzene (Surr)91 04/13/16 12:43 04/19/16 04:32 170-130 Dibromofluoromethane (Surr)116 04/13/16 12:43 04/14/16 21:00 170-130 Dibromofluoromethane (Surr)113 04/13/16 12:43 04/19/16 04:32 170-130 Toluene-d8 (Surr)95 04/13/16 12:43 04/14/16 21:00 170-130 Toluene-d8 (Surr)94 04/13/16 12:43 04/19/16 04:32 170-130 TestAmerica Nashville Page 14 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 QC Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Method: 8260B - Volatile Organic Compounds (GC/MS) Client Sample ID: D2-4.5Lab Sample ID: 490-101457-9 MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 331473 Prep Batch: 331081 Benzene ND 0.0498 0.05218 mg/Kg 105 31-143 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec. Limits Toluene ND 0.0498 0.05362 mg/Kg 108 30-155 Ethylbenzene ND 0.0498 0.04800 mg/Kg 96 23-161 Xylenes, Total ND F1 0.0996 0.1382 mg/Kg 139 25-162 Methyl tert-butyl ether ND 0.0498 0.04812 mg/Kg 97 28-141 Tert-amyl methyl ether ND 0.0498 0.04205 mg/Kg 84 38-151 tert-Butyl alcohol (TBA)ND 0.498 0.3868 mg/Kg 78 10-183 Diisopropyl ether ND 0.0498 0.04368 mg/Kg 88 35-135 Ethyl tert-butyl ether ND 0.0498 0.04270 mg/Kg 86 44-143 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 123 MS MS Qualifier Limits%Recovery 814-Bromofluorobenzene (Surr)70 -130 118Dibromofluoromethane (Surr)70 -130 107Toluene-d8 (Surr)70 -130 Client Sample ID: D2-4.5Lab Sample ID: 490-101457-9 MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 331473 Prep Batch: 331081 Benzene ND 0.0473 0.04847 mg/Kg 103 31-143 7 50 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec. Limits LimitRPD RPD Toluene ND 0.0473 0.04782 mg/Kg 101 30-155 11 50 Ethylbenzene ND 0.0473 0.05273 mg/Kg 112 23-161 9 50 Xylenes, Total ND F1 0.0945 0.1839 F1 mg/Kg 195 25-162 28 50 Methyl tert-butyl ether ND 0.0473 0.04723 mg/Kg 100 28-141 2 50 Tert-amyl methyl ether ND 0.0473 0.04110 mg/Kg 87 38-151 2 50 tert-Butyl alcohol (TBA)ND 0.473 0.4955 mg/Kg 105 10-183 25 50 Diisopropyl ether ND 0.0473 0.04147 mg/Kg 88 35-135 5 45 Ethyl tert-butyl ether ND 0.0473 0.04138 mg/Kg 88 44-143 3 49 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 122 MSD MSD Qualifier Limits%Recovery 734-Bromofluorobenzene (Surr)70 -130 111Dibromofluoromethane (Surr)70 -130 99Toluene-d8 (Surr)70 -130 Client Sample ID: Method BlankLab Sample ID: MB 490-331473/13 Matrix: Solid Prep Type: Total/NA Analysis Batch: 331473 RL MDL Benzene ND 0.00200 mg/Kg 04/14/16 16:20 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 0.00200 mg/Kg 04/14/16 16:20 1Toluene ND 0.00200 mg/Kg 04/14/16 16:20 1Ethylbenzene ND 0.00600 mg/Kg 04/14/16 16:20 1Xylenes, Total ND 0.00200 mg/Kg 04/14/16 16:20 1Methyl tert-butyl ether TestAmerica Nashville Page 15 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 QC Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: Method BlankLab Sample ID: MB 490-331473/13 Matrix: Solid Prep Type: Total/NA Analysis Batch: 331473 RL MDL Tert-amyl methyl ether ND 0.00200 mg/Kg 04/14/16 16:20 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 0.0500 mg/Kg 04/14/16 16:20 1tert-Butyl alcohol (TBA) ND 0.00200 mg/Kg 04/14/16 16:20 1Diisopropyl ether ND 0.00500 mg/Kg 04/14/16 16:20 1Ethyl tert-butyl ether 0.3054 0.100 mg/Kg 04/14/16 16:20 1GRO (C4-C12) 1,2-Dichloroethane-d4 (Surr)130 70-130 04/14/16 16:20 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 89 04/14/16 16:20 14-Bromofluorobenzene (Surr)70-130 118 04/14/16 16:20 1Dibromofluoromethane (Surr)70-130 108 04/14/16 16:20 1Toluene-d8 (Surr)70-130 Client Sample ID: Lab Control SampleLab Sample ID: LCS 490-331473/24 Matrix: Solid Prep Type: Total/NA Analysis Batch: 331473 GRO (C4-C12)1.00 1.209 mg/Kg 121 51-150 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 126 LCS LCS Qualifier Limits%Recovery 844-Bromofluorobenzene (Surr)70 -130 117Dibromofluoromethane (Surr)70 -130 104Toluene-d8 (Surr)70 -130 Client Sample ID: Lab Control SampleLab Sample ID: LCS 490-331473/4 Matrix: Solid Prep Type: Total/NA Analysis Batch: 331473 Benzene 0.0500 0.05428 mg/Kg 109 75-127 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Toluene 0.0500 0.05695 mg/Kg 114 80-132 Ethylbenzene 0.0500 0.06289 mg/Kg 126 80-134 Xylenes, Total 0.150 0.1873 mg/Kg 125 80-137 Methyl tert-butyl ether 0.0500 0.05479 mg/Kg 110 70-136 Tert-amyl methyl ether 0.0500 0.04976 mg/Kg 100 59-144 tert-Butyl alcohol (TBA)0.500 0.3992 mg/Kg 80 43-150 Diisopropyl ether 0.0500 0.04892 mg/Kg 98 68-124 Ethyl tert-butyl ether 0.0500 0.04991 mg/Kg 100 66-135 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 121 LCS LCS Qualifier Limits%Recovery 834-Bromofluorobenzene (Surr)70 -130 106Dibromofluoromethane (Surr)70 -130 102Toluene-d8 (Surr)70 -130 TestAmerica Nashville Page 16 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 QC Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 490-331473/5 Matrix: Solid Prep Type: Total/NA Analysis Batch: 331473 Benzene 0.0500 0.05608 mg/Kg 112 75-127 3 50 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec. Limits LimitRPD RPD Toluene 0.0500 0.05758 mg/Kg 115 80-132 1 50 Ethylbenzene 0.0500 0.06278 mg/Kg 126 80-134 0 50 Xylenes, Total 0.150 0.1763 mg/Kg 118 80-137 6 50 Methyl tert-butyl ether 0.0500 0.05668 mg/Kg 113 70-136 3 50 Tert-amyl methyl ether 0.0500 0.05124 mg/Kg 102 59-144 3 50 tert-Butyl alcohol (TBA)0.500 0.4979 mg/Kg 100 43-150 22 50 Diisopropyl ether 0.0500 0.05098 mg/Kg 102 68-124 4 45 Ethyl tert-butyl ether 0.0500 0.05093 mg/Kg 102 66-135 2 49 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 123 LCSD LCSD Qualifier Limits%Recovery 874-Bromofluorobenzene (Surr)70 -130 111Dibromofluoromethane (Surr)70 -130 102Toluene-d8 (Surr)70 -130 Client Sample ID: Method BlankLab Sample ID: MB 490-332621/8 Matrix: Solid Prep Type: Total/NA Analysis Batch: 332621 RL MDL Benzene ND 0.00200 mg/Kg 04/19/16 04:01 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 0.00200 mg/Kg 04/19/16 04:01 1Toluene ND 0.00200 mg/Kg 04/19/16 04:01 1Ethylbenzene ND 0.00600 mg/Kg 04/19/16 04:01 1Xylenes, Total ND 0.00200 mg/Kg 04/19/16 04:01 1Methyl tert-butyl ether ND 0.00200 mg/Kg 04/19/16 04:01 1Tert-amyl methyl ether ND 0.0500 mg/Kg 04/19/16 04:01 1tert-Butyl alcohol (TBA) ND 0.00200 mg/Kg 04/19/16 04:01 1Diisopropyl ether ND 0.00500 mg/Kg 04/19/16 04:01 1Ethyl tert-butyl ether ND 0.100 mg/Kg 04/19/16 04:01 1GRO (C4-C12) 1,2-Dichloroethane-d4 (Surr)122 70-130 04/19/16 04:01 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 95 04/19/16 04:01 14-Bromofluorobenzene (Surr)70-130 118 04/19/16 04:01 1Dibromofluoromethane (Surr)70-130 94 04/19/16 04:01 1Toluene-d8 (Surr)70-130 Client Sample ID: Lab Control SampleLab Sample ID: LCS 490-332621/5 Matrix: Solid Prep Type: Total/NA Analysis Batch: 332621 GRO (C4-C12)1.00 0.8559 mg/Kg 86 51-150 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 129 LCS LCS Qualifier Limits%Recovery TestAmerica Nashville Page 17 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 QC Sample Results TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 490-332621/5 Matrix: Solid Prep Type: Total/NA Analysis Batch: 332621 4-Bromofluorobenzene (Surr)70 -130 Surrogate 94 LCS LCS Qualifier Limits%Recovery 118Dibromofluoromethane (Surr)70 -130 93Toluene-d8 (Surr)70 -130 TestAmerica Nashville Page 18 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 QC Association Summary TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 GC/MS VOA Prep Batch: 331081 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 5030B490-101457-1 T2-W-15 Total/NA Solid 5030B490-101457-2 T2-E-15 Total/NA Solid 5030B490-101457-2 T2-E-15 Total/NA Solid 5030B490-101457-3 T1-W-15 Total/NA Solid 5030B490-101457-3 T1-W-15 Total/NA Solid 5030B490-101457-4 T1-E-15 Total/NA Solid 5030B490-101457-4 T1-E-15 Total/NA Solid 5030B490-101457-5 T3-W-15 Total/NA Solid 5030B490-101457-5 T3-W-15 Total/NA Solid 5030B490-101457-6 T3-E-15 Total/NA Solid 5030B490-101457-6 T3-E-15 Total/NA Solid 5030B490-101457-7 VL-2.0 Total/NA Solid 5030B490-101457-7 VL-2.0 Total/NA Solid 5030B490-101457-8 D1-4.5 Total/NA Solid 5030B490-101457-8 D1-4.5 Total/NA Solid 5030B490-101457-9 D2-4.5 Total/NA Solid 5030B490-101457-9 D2-4.5 Total/NA Solid 5030B490-101457-9 MS D2-4.5 Total/NA Solid 5030B490-101457-9 MSD D2-4.5 Total/NA Analysis Batch: 331473 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8260B 331081490-101457-1 T2-W-15 Total/NA Solid 8260B 331081490-101457-2 T2-E-15 Total/NA Solid 8260B 331081490-101457-3 T1-W-15 Total/NA Solid 8260B 331081490-101457-4 T1-E-15 Total/NA Solid 8260B 331081490-101457-5 T3-W-15 Total/NA Solid 8260B 331081490-101457-6 T3-E-15 Total/NA Solid 8260B 331081490-101457-7 VL-2.0 Total/NA Solid 8260B 331081490-101457-8 D1-4.5 Total/NA Solid 8260B 331081490-101457-9 D2-4.5 Total/NA Solid 8260B 331081490-101457-9 MS D2-4.5 Total/NA Solid 8260B 331081490-101457-9 MSD D2-4.5 Total/NA Solid 8260BLCS 490-331473/24 Lab Control Sample Total/NA Solid 8260BLCS 490-331473/4 Lab Control Sample Total/NA Solid 8260BLCSD 490-331473/5 Lab Control Sample Dup Total/NA Solid 8260BMB 490-331473/13 Method Blank Total/NA Prep Batch: 332353 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 5030B490-101457-1 T2-W-15 Total/NA Analysis Batch: 332621 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8260B 332353490-101457-1 T2-W-15 Total/NA Solid 8260B 331081490-101457-2 T2-E-15 Total/NA Solid 8260B 331081490-101457-3 T1-W-15 Total/NA Solid 8260B 331081490-101457-4 T1-E-15 Total/NA Solid 8260B 331081490-101457-5 T3-W-15 Total/NA Solid 8260B 331081490-101457-6 T3-E-15 Total/NA Solid 8260B 331081490-101457-7 VL-2.0 Total/NA TestAmerica Nashville Page 19 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 QC Association Summary TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 GC/MS VOA (Continued) Analysis Batch: 332621 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8260B 331081490-101457-8 D1-4.5 Total/NA Solid 8260B 331081490-101457-9 D2-4.5 Total/NA Solid 8260BLCS 490-332621/5 Lab Control Sample Total/NA Solid 8260BMB 490-332621/8 Method Blank Total/NA TestAmerica Nashville Page 20 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Lab Chronicle Client: Stantec Consulting Corp.TestAmerica Job ID: 490-101457-1 Project/Site: 7-Eleven #16329 Client Sample ID: T2-W-15 Lab Sample ID: 490-101457-1 Matrix: SolidDate Collected: 04/07/16 10:06 Date Received: 04/12/16 09:30 Prep 5030B JLP04/18/16 08:27 TAL NSH332353 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.35 g 5.0 mL Analysis 8260B 1 332621 04/19/16 08:47 IMA TAL NSHTotal/NA 5.35 g 5.0 mL Prep 5030B 331081 04/13/16 12:43 JLP TAL NSHTotal/NA 5.24 g 5.0 mL Analysis 8260B 1 331473 04/14/16 16:51 IMA TAL NSHTotal/NA 5.24 g 5.0 mL Client Sample ID: T2-E-15 Lab Sample ID: 490-101457-2 Matrix: SolidDate Collected: 04/07/16 10:03 Date Received: 04/12/16 09:30 Prep 5030B JLP04/13/16 12:43 TAL NSH331081 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.27 g 5.0 mL Analysis 8260B 1 332621 04/19/16 08:15 IMA TAL NSHTotal/NA 5.27 g 5.0 mL Prep 5030B 331081 04/13/16 12:43 JLP TAL NSHTotal/NA 5.43 g 5.0 mL Analysis 8260B 1 331473 04/14/16 17:22 IMA TAL NSHTotal/NA 5.43 g 5.0 mL Client Sample ID: T1-W-15 Lab Sample ID: 490-101457-3 Matrix: SolidDate Collected: 04/07/16 10:13 Date Received: 04/12/16 09:30 Prep 5030B JLP04/13/16 12:43 TAL NSH331081 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.27 g 5.0 mL Analysis 8260B 1 332621 04/19/16 07:43 IMA TAL NSHTotal/NA 5.27 g 5.0 mL Prep 5030B 331081 04/13/16 12:43 JLP TAL NSHTotal/NA 5.01 g 5.0 mL Analysis 8260B 1 331473 04/14/16 17:53 IMA TAL NSHTotal/NA 5.01 g 5.0 mL Client Sample ID: T1-E-15 Lab Sample ID: 490-101457-4 Matrix: SolidDate Collected: 04/07/16 10:10 Date Received: 04/12/16 09:30 Prep 5030B JLP04/13/16 12:43 TAL NSH331081 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.99 g 5.0 mL Analysis 8260B 1 332621 04/19/16 07:11 IMA TAL NSHTotal/NA 5.99 g 5.0 mL Prep 5030B 331081 04/13/16 12:43 JLP TAL NSHTotal/NA 5.70 g 5.0 mL Analysis 8260B 1 331473 04/14/16 18:24 IMA TAL NSHTotal/NA 5.70 g 5.0 mL Client Sample ID: T3-W-15 Lab Sample ID: 490-101457-5 Matrix: SolidDate Collected: 04/07/16 09:50 Date Received: 04/12/16 09:30 Prep 5030B JLP04/13/16 12:43 TAL NSH331081 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.20 g 5.0 mL Analysis 8260B 1 332621 04/19/16 06:40 IMA TAL NSHTotal/NA 5.20 g 5.0 mL Prep 5030B 331081 04/13/16 12:43 JLP TAL NSHTotal/NA 5.47 g 5.0 mL TestAmerica Nashville Page 21 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Lab Chronicle Client: Stantec Consulting Corp.TestAmerica Job ID: 490-101457-1 Project/Site: 7-Eleven #16329 Client Sample ID: T3-W-15 Lab Sample ID: 490-101457-5 Matrix: SolidDate Collected: 04/07/16 09:50 Date Received: 04/12/16 09:30 Analysis 8260B IMA04/14/16 18:551 TAL NSH331473 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.47 g 5.0 mL Client Sample ID: T3-E-15 Lab Sample ID: 490-101457-6 Matrix: SolidDate Collected: 04/07/16 09:45 Date Received: 04/12/16 09:30 Prep 5030B JLP04/13/16 12:43 TAL NSH331081 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.19 g 5.0 mL Analysis 8260B 1 332621 04/19/16 06:08 IMA TAL NSHTotal/NA 5.19 g 5.0 mL Prep 5030B 331081 04/13/16 12:43 JLP TAL NSHTotal/NA 5.48 g 5.0 mL Analysis 8260B 1 331473 04/14/16 19:26 IMA TAL NSHTotal/NA 5.48 g 5.0 mL Client Sample ID: VL-2.0 Lab Sample ID: 490-101457-7 Matrix: SolidDate Collected: 04/07/16 09:00 Date Received: 04/12/16 09:30 Prep 5030B JLP04/13/16 12:43 TAL NSH331081 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.38 g 5.0 mL Analysis 8260B 1 332621 04/19/16 05:36 IMA TAL NSHTotal/NA 5.38 g 5.0 mL Prep 5030B 331081 04/13/16 12:43 JLP TAL NSHTotal/NA 5.25 g 5.0 mL Analysis 8260B 1 331473 04/14/16 19:57 IMA TAL NSHTotal/NA 5.25 g 5.0 mL Client Sample ID: D1-4.5 Lab Sample ID: 490-101457-8 Matrix: SolidDate Collected: 04/05/16 11:00 Date Received: 04/12/16 09:30 Prep 5030B JLP04/13/16 12:43 TAL NSH331081 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.28 g 5.0 mL Analysis 8260B 1 332621 04/19/16 05:04 IMA TAL NSHTotal/NA 5.28 g 5.0 mL Prep 5030B 331081 04/13/16 12:43 JLP TAL NSHTotal/NA 5.36 g 5.0 mL Analysis 8260B 1 331473 04/14/16 20:29 IMA TAL NSHTotal/NA 5.36 g 5.0 mL Client Sample ID: D2-4.5 Lab Sample ID: 490-101457-9 Matrix: SolidDate Collected: 04/05/16 11:15 Date Received: 04/12/16 09:30 Prep 5030B JLP04/13/16 12:43 TAL NSH331081 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.64 g 5.0 mL Analysis 8260B 1 332621 04/19/16 04:32 IMA TAL NSHTotal/NA 5.64 g 5.0 mL Prep 5030B 331081 04/13/16 12:43 JLP TAL NSHTotal/NA 5.03 g 5.0 mL Analysis 8260B 1 331473 04/14/16 21:00 IMA TAL NSHTotal/NA 5.03 g 5.0 mL TestAmerica Nashville Page 22 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Lab Chronicle Client: Stantec Consulting Corp.TestAmerica Job ID: 490-101457-1 Project/Site: 7-Eleven #16329 Laboratory References: TAL NSH = TestAmerica Nashville, 2960 Foster Creighton Drive, Nashville, TN 37204, TEL (615)726-0177 TestAmerica Nashville Page 23 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Method Summary TestAmerica Job ID: 490-101457-1Client: Stantec Consulting Corp. Project/Site: 7-Eleven #16329 Method Method Description LaboratoryProtocol SW8468260BVolatile Organic Compounds (GC/MS)TAL NSH Protocol References: SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: TAL NSH = TestAmerica Nashville, 2960 Foster Creighton Drive, Nashville, TN 37204, TEL (615)726-0177 TestAmerica Nashville Page 24 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Certification Summary Client: Stantec Consulting Corp.TestAmerica Job ID: 490-101457-1 Project/Site: 7-Eleven #16329 Laboratory: TestAmerica Nashville Unless otherwise noted, all analytes for this laboratory were covered under each certification below. Authority Program EPA Region Certification ID Expiration Date California 29389State Program 10-31-16 Analysis Method Prep Method Matrix Analyte The following analytes are included in this report, but certification is not offered by the governing authority: 8260B 5030B Solid Diisopropyl ether TestAmerica Nashville Page 25 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Page 26 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Page 27 of 28 4/20/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 Login Sample Receipt Checklist Client: Stantec Consulting Corp.Job Number: 490-101457-1 Login Number: 101457 Question Answer Comment Creator: Stvartak, Anthony Q List Source: TestAmerica Nashville List Number: 1 TrueRadioactivity wasn't checked or is </= background as measured by a survey meter. TrueThe cooler's custody seal, if present, is intact. TrueSample custody seals, if present, are intact. TrueThe cooler or samples do not appear to have been compromised or tampered with. TrueSamples were received on ice. TrueCooler Temperature is acceptable. TrueCooler Temperature is recorded. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. TrueIs the Field Sampler's name present on COC? TrueThere are no discrepancies between the containers received and the COC. TrueSamples are received within Holding Time (excluding tests with immediate HTs) TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueAppropriate sample containers are used. TrueSample bottles are completely filled. N/ASample Preservation Verified. TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs TrueContainers requiring zero headspace have no headspace or bubble is <6mm (1/4"). TrueMultiphasic samples are not present. TrueSamples do not require splitting or compositing. N/AResidual Chlorine Checked. 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