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HomeMy WebLinkAboutWA-364_7173_CA_MPR_20180405 3502 Hayes Road • Monroe, North Carolina 28110 Phone (704) 845-4010 • (888) 870-4133 • Fax (704) 845-4012 April 5, 2018 Ms. Carrie Stone North Carolina Department of Environmental Quality Washington Regional Office 943 Washington Square Mall Washington, North Carolina 27889 Re: April 2018 Ground Water Assessment Elizabeth City Garage 410 Pritchard Street Elizabeth City, Pasquotank County Risk Classification L140D Incident No. 7173 GRI Project No. 4650 Dear Ms. Stone, Geological Resources, Inc. (GRI) presents the results of the April 2018 sampling event at the above referenced site. The activities were conducted in accordance with Geological Resources, Inc. (GRI) proposal number 18-189 which was submitted to NCDEQ on March 16, 2018 and approved as Task Authorization No. 7173-15 on March 23, 2018. One monitoring well (GMW-1) was installed at the site. GMW-1 was drilled to a depth of 12 feet below grade and was completed with a 10-foot screened interval set to bracket the water table at the time of installation. GMW-1 was gauged, purged and sampled on March 29, 2018. The ground water sample was submitted for laboratory analyses of VOCs + 5 oxygenates using EPA Method 6200B, EDB using EPA Method 504.1 and lead using EPA Method 6010B. Please see the attached laboratory report. Please do not hesitate to contact the undersigned at (704) 845-4010 if you have any questions or require additional information. Sincerely, Geological Resources, Inc. William Regenthal, P. G. Project Manager Enclosures: Well Construction Record, Laboratory Report, Site Map, Site Location Map cc: City of Elizabeth City, P.O. Box 404, Elizabeth City, NC 27909 file Copyright (C) 2009 MyTopo, 2006-2017 TomTom SCALE 1:24000 0 1000 2000 3000 4000 5000 FEET Declination MN 10.75° W  MN Location: 036.2968940° N 076.2369090° WDate: 11/30/17 Scale: 1 inch = 2,000 ft. Copyright (C) 2009 MyTopo Figure 1 Elizabeth City Garage 410 Pritchard Street, Elizabeth City, Pasquotank County, NC Incident No. N/A GRI Project No. 4650 04/04/18 Technical Report for GRI (Geological Resources Inc.) Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC 4650 SGS Job Number: FA52959 Sampling Date: 03/29/18 Report to: GRI 3502 Hayes Rd Monroe, NC 28110 wlr@geologicalresourcesinc.com; carriekennedy@geologicalresourcesinc.com; jjr@geologicalresourcesinc.com; nml@geologicalresourcesinc.com ATTN: William Regenthall Total number of pages in report: Certifications: FL(E83510), LA(03051), KS(E-10327), IL(200063), NC(573), NJ(FL002), NY(12022), SC(96038001) DoD ELAP(ANAB L2229), AZ(AZ0806), CA(2937), TX(T104704404), PA(68-03573), VA(460177), AK, AR, IA, KY, MA, MS, ND, NH, NV, OK, OR, UT, WA, WV This report shall not be reproduced, except in its entirety, without the written approval of SGS. Test results relate only to samples analyzed. SGS North America Inc. • 4405 Vineland Road • Suite C-15 • Orlando, FL 32811 • tel: 407-425-6700 • fax: 407-425-0707 Test results contained within this data package meet the requirements of the National Environmental Laboratory Accreditation Program and/or state specific certification programs as applicable. Client Service contact: Muna Mohammed 407-425-6700 Caitlin Brice, M.S. General Manager Orlando, FL 04/04/18 e-Hardcopy 2.0 Automated Report 34 SGS is the sole authority for authorizing edits or modifications to this document. Unauthorized modification of this report is strictly prohibited. Review standard terms at: http://www.sgs.com/en/terms-and-conditions The results set forth herein are provided by SGS North America Inc. Please share your ideas about how we can serve you better at: EHS.US.CustomerCare@sgs.com 1 of 34 FA52959 Table of Contents -1- Sections: Section 1: Sample Summary ...................................................................................................3 Section 2: Summary of Hits ....................................................................................................4 Section 3: Sample Results ........................................................................................................5 3.1: FA52959-1: GMW-1 .....................................................................................................6 Section 4: Misc. Forms ............................................................................................................11 4.1: Chain of Custody ...........................................................................................................12 Section 5: MS Volatiles - QC Data Summaries .....................................................................14 5.1: Method Blank Summary ................................................................................................15 5.2: Blank Spike Summary ...................................................................................................18 5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................21 Section 6: GC Volatiles - QC Data Summaries .....................................................................24 6.1: Method Blank Summary ................................................................................................25 6.2: Blank Spike Summary ...................................................................................................26 6.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................27 Section 7: Metals Analysis - QC Data Summaries ................................................................28 7.1: Prep QC MP33545: Pb ..................................................................................................29 12345672 of 34 FA52959 SGS North America Inc. Sample Summary GRI (Geological Resources Inc.) Job No:FA52959 Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Project No: 4650 Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID FA52959-1 03/29/18 14:30 WR 03/30/18 AQ Ground Water GMW-1 3 of 34 FA529591 Summary of Hits Page 1 of 1 Job Number:FA52959 Account:GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Collected:03/29/18 Lab Sample ID Client Sample ID Result/ Analyte Qual RL MDL Units Method FA52959-1 GMW-1 Benzene 1660 25 6.3 ug/l SM 6200B n-Butylbenzene 55.9 25 6.3 ug/l SM 6200B sec-Butylbenzene 28.6 25 6.3 ug/l SM 6200B Di-Isopropyl Ether 53.7 25 6.3 ug/l SM 6200B Ethylbenzene 1010 25 6.3 ug/l SM 6200B Isopropylbenzene 172 25 6.3 ug/l SM 6200B Methyl Tert Butyl Ether 43.0 25 6.3 ug/l SM 6200B Naphthalene 133 25 6.3 ug/l SM 6200B n-Propylbenzene 465 25 6.3 ug/l SM 6200B Tert-Amyl Alcohol 612 500 100 ug/l SM 6200B Toluene 22.0 J 25 6.3 ug/l SM 6200B 1,2,4-Trimethylbenzene 7.6 J 25 6.3 ug/l SM 6200B m,p-Xylene 23.9 J 50 6.3 ug/l SM 6200B Xylene (total)23.9 J 75 13 ug/l SM 6200B Lead 698 5.0 ug/l SW846 6010D 4 of 34 FA529592 SGS North America Inc. Sample Results Report of Analysis Orlando, FL Section 3 5 of 34 FA529593 SGS North America Inc. Report of Analysis Page 1 of 3 Client Sample ID:GMW-1 Lab Sample ID:FA52959-1 Date Sampled:03/29/18 Matrix:AQ - Ground Water Date Received:03/30/18 Method:SM 6200B Percent Solids:n/a Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 A0212632.D 50 04/04/18 05:13 TD n/a n/a VA2354 Run #2 Purge Volume Run #1 10.0 ml Run #2 VOA 6200B List CAS No.Compound Result RL MDL Units Q 71-43-2 Benzene 1660 25 6.3 ug/l 108-86-1 Bromobenzene ND 25 6.3 ug/l 74-97-5 Bromochloromethane ND 25 6.3 ug/l 75-27-4 Bromodichloromethane ND 25 6.3 ug/l 75-25-2 Bromoform ND 25 6.3 ug/l 104-51-8 n-Butylbenzene 55.9 25 6.3 ug/l 135-98-8 sec-Butylbenzene 28.6 25 6.3 ug/l 98-06-6 tert-Butylbenzene ND 25 6.3 ug/l 56-23-5 Carbon Tetrachloride ND 25 6.3 ug/l 108-90-7 Chlorobenzene ND 25 6.3 ug/l 75-00-3 Chloroethane ND 25 10 ug/l 67-66-3 Chloroform ND 25 6.3 ug/l 95-49-8 o-Chlorotoluene ND 25 6.3 ug/l 106-43-4 p-Chlorotoluene ND 25 6.3 ug/l 124-48-1 Dibromochloromethane ND 25 6.3 ug/l 96-12-8 1,2-Dibromo-3-chloropropane ND 25 12 ug/l 106-93-4 1,2-Dibromoethane ND 25 6.3 ug/l 75-71-8 Dichlorodifluoromethane ND 25 10 ug/l 95-50-1 1,2-Dichlorobenzene ND 25 6.3 ug/l 541-73-1 1,3-Dichlorobenzene ND 25 6.3 ug/l 106-46-7 1,4-Dichlorobenzene ND 25 6.3 ug/l 75-34-3 1,1-Dichloroethane ND 25 6.3 ug/l 107-06-2 1,2-Dichloroethane ND 25 6.3 ug/l 75-35-4 1,1-Dichloroethylene ND 25 6.3 ug/l 156-59-2 cis-1,2-Dichloroethylene ND 25 6.3 ug/l 156-60-5 trans-1,2-Dichloroethylene ND 25 6.3 ug/l 78-87-5 1,2-Dichloropropane ND 25 6.3 ug/l 142-28-9 1,3-Dichloropropane ND 25 6.3 ug/l 594-20-7 2,2-Dichloropropane ND 25 6.3 ug/l 563-58-6 1,1-Dichloropropene ND 25 6.3 ug/l 10061-01-5 cis-1,3-Dichloropropene ND 25 6.3 ug/l 10061-02-6 trans-1,3-Dichloropropene ND 25 6.3 ug/l ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 6 of 34 FA5295933.1 SGS North America Inc. Report of Analysis Page 2 of 3 Client Sample ID:GMW-1 Lab Sample ID:FA52959-1 Date Sampled:03/29/18 Matrix:AQ - Ground Water Date Received:03/30/18 Method:SM 6200B Percent Solids:n/a Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC VOA 6200B List CAS No.Compound Result RL MDL Units Q 108-20-3 Di-Isopropyl Ether 53.7 25 6.3 ug/l 100-41-4 Ethylbenzene 1010 25 6.3 ug/l 637-92-3 Ethyl Tert Butyl Ether ND 25 6.3 ug/l 87-68-3 Hexachlorobutadiene ND 25 6.3 ug/l 98-82-8 Isopropylbenzene 172 25 6.3 ug/l 99-87-6 p-Isopropyltoluene ND 25 6.3 ug/l 74-83-9 Methyl Bromide ND 25 10 ug/l 74-87-3 Methyl Chloride ND 25 10 ug/l 74-95-3 Methylene Bromide ND 25 6.3 ug/l 75-09-2 Methylene Chloride ND 100 50 ug/l 1634-04-4 Methyl Tert Butyl Ether 43.0 25 6.3 ug/l 91-20-3 Naphthalene 133 25 6.3 ug/l 103-65-1 n-Propylbenzene 465 25 6.3 ug/l 100-42-5 Styrene ND 25 6.3 ug/l 75-85-4 Tert-Amyl Alcohol 612 500 100 ug/l 994-05-8 Tert-Amyl Methyl Ether ND 50 10 ug/l 75-65-0 Tert-Butyl Alcohol ND 500 100 ug/l 762-75-4 Tert-Butyl Formate ND 500 100 ug/l 630-20-6 1,1,1,2-Tetrachloroethane ND 25 6.3 ug/l 79-34-5 1,1,2,2-Tetrachloroethane ND 25 6.3 ug/l 127-18-4 Tetrachloroethylene ND 25 6.3 ug/l 108-88-3 Toluene 22.0 25 6.3 ug/l J 87-61-6 1,2,3-Trichlorobenzene ND 25 6.3 ug/l 120-82-1 1,2,4-Trichlorobenzene ND 25 6.3 ug/l 71-55-6 1,1,1-Trichloroethane ND 25 6.3 ug/l 79-00-5 1,1,2-Trichloroethane ND 25 6.3 ug/l 79-01-6 Trichloroethylene ND 25 6.3 ug/l 75-69-4 Trichlorofluoromethane ND 25 10 ug/l 96-18-4 1,2,3-Trichloropropane ND 25 6.3 ug/l 95-63-6 1,2,4-Trimethylbenzene 7.6 25 6.3 ug/l J 108-67-8 1,3,5-Trimethylbenzene ND 25 6.3 ug/l 75-01-4 Vinyl Chloride ND 25 6.3 ug/l m,p-Xylene 23.9 50 6.3 ug/l J 95-47-6 o-Xylene ND 25 6.3 ug/l 1330-20-7 Xylene (total)23.9 75 13 ug/l J CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 1868-53-7 Dibromofluoromethane 94%70-130% 17060-07-0 1,2-Dichloroethane-D4 88%70-130% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 7 of 34 FA5295933.1 SGS North America Inc. Report of Analysis Page 3 of 3 Client Sample ID:GMW-1 Lab Sample ID:FA52959-1 Date Sampled:03/29/18 Matrix:AQ - Ground Water Date Received:03/30/18 Method:SM 6200B Percent Solids:n/a Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC VOA 6200B List CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 2037-26-5 Toluene-D8 102%70-130% 460-00-4 4-Bromofluorobenzene 100%70-130% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 8 of 34 FA5295933.1 SGS North America Inc. Report of Analysis Page 1 of 1 Client Sample ID:GMW-1 Lab Sample ID:FA52959-1 Date Sampled:03/29/18 Matrix:AQ - Ground Water Date Received:03/30/18 Method:EPA 504.1 EPA 504.1 Percent Solids:n/a Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 DD98595.D 1 04/03/18 17:35 NM 04/03/18 11:10 OP69450 GDD2868 Run #2 Initial Volume Final Volume Run #1 36.9 ml 2.0 ml Run #2 CAS No.Compound Result RL MDL Units Q 106-93-4 1,2-Dibromoethane ND 0.019 0.0095 ug/l CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 133%63-137% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 9 of 34 FA5295933.1 SGS North America Inc. Report of Analysis Page 1 of 1 Client Sample ID:GMW-1 Lab Sample ID:FA52959-1 Date Sampled:03/29/18 Matrix:AQ - Ground Water Date Received:03/30/18 Percent Solids:n/a Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Total Metals Analysis Analyte Result RL Units DF Prep Analyzed By Method Prep Method Lead 698 5.0 ug/l 1 04/03/18 04/04/18 LM SW846 6010D 1 SW846 3010A 2 (1) Instrument QC Batch: MA14797 (2) Prep QC Batch: MP33545 RL = Reporting Limit 10 of 34 FA5295933.1 SGS North America Inc. Misc. Forms Custody Documents and Other Forms Includes the following where applicable: • Chain of Custody Orlando, FL Section 4 11 of 34 FA529594 FA52959: Chain of Custody Page 1 of 2 12 of 34 FA5295944.1 Job Number:FA52959 Client:GRI Date / Time Received:3/30/2018 9:00:00 AM Delivery Method:FX Project:ELIZABETH CITY Airbill #'s:1015906964360003281100808776153974 Cooler Information 1. Custody Seals Present 2. Custody Seals Intact 4. Cooler temp verification 3. Temp criteria achieved 5. Cooler media IR Gun Ice (Bag) Trip Blank Information 1. Trip Blank present / cooler 2. Trip Blank listed on COC 2. Samples preserved properly Sample Information 1. Sample labels present on bottles 5. Sample recvd within HT 4. Condition of sample 3. Sufficient volume/containers recvd for analysis: Intact Comments 2 VOA vials received instead of 3for EDB SM001Rev. Date 05/24/17 SGS Sample Receipt Summary Cooler Temps (Raw Measured) °C: Cooler Temps (Corrected) °C: Cooler 1: (3.0); Cooler 1: (3.4); 3. Type Of TB Received W or S N/A 6. Dates/Times/IDs on COC match Sample Label 7. VOCs have headspace 8. Bottles received for unspecified tests 9. Compositing instructions clear 10. Voa Soil Kits/Jars received past 48hrs? 11. % Solids Jar received? Misc. Information 25-Gram 5-GramNumber of Encores:Number of 5035 Field Kits:Number of Lab Filtered Metals: Test Strip Lot #s:pH 0-3 230315 pH 10-12 219813A Other: (Specify) Y or N N/A Y or N Therm ID:IR 1; Therm CF:0.4; # of Coolers:1 Y or N N/A 12. Residual Chlorine Present? Residual Chlorine Test Strip Lot #: Technician:Reviewer:JORGEC AG Date:3/30/2018Date:3/30/2018 9:00:00 AM FA52959: Chain of Custody Page 2 of 2 13 of 34 FA5295944.1 SGS North America Inc. MS Volatiles QC Data Summaries Includes the following where applicable: • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries Orlando, FL Section 5 14 of 34 FA529595 Method Blank Summary Page 1 of 3 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA2354-MB A0212618.D 1 04/03/18 TD n/a n/a VA2354 The QC reported here applies to the following samples:Method: SM 6200B FA52959-1 CAS No.Compound Result RL MDL Units Q 71-43-2 Benzene ND 0.50 0.13 ug/l 108-86-1 Bromobenzene ND 0.50 0.13 ug/l 74-97-5 Bromochloromethane ND 0.50 0.13 ug/l 75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l 75-25-2 Bromoform ND 0.50 0.13 ug/l 104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l 135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l 98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l 56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l 108-90-7 Chlorobenzene ND 0.50 0.13 ug/l 75-00-3 Chloroethane ND 0.50 0.20 ug/l 67-66-3 Chloroform ND 0.50 0.13 ug/l 95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l 106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l 124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l 96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l 106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l 75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l 95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l 541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l 106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l 75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l 107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l 75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l 156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l 156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l 78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l 142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l 594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l 563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l 10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l 10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l 108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l 100-41-4 Ethylbenzene ND 0.50 0.13 ug/l 637-92-3 Ethyl Tert Butyl Ether ND 0.50 0.13 ug/l 87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l 15 of 34 FA5295955.1.1 Method Blank Summary Page 2 of 3 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA2354-MB A0212618.D 1 04/03/18 TD n/a n/a VA2354 The QC reported here applies to the following samples:Method: SM 6200B FA52959-1 CAS No.Compound Result RL MDL Units Q 98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l 99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l 74-83-9 Methyl Bromide ND 0.50 0.20 ug/l 74-87-3 Methyl Chloride ND 0.50 0.20 ug/l 74-95-3 Methylene Bromide ND 0.50 0.13 ug/l 75-09-2 Methylene Chloride ND 2.0 1.0 ug/l 1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l 91-20-3 Naphthalene ND 0.50 0.13 ug/l 103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l 100-42-5 Styrene ND 0.50 0.13 ug/l 75-85-4 Tert-Amyl Alcohol ND 10 2.0 ug/l 994-05-8 Tert-Amyl Methyl Ether ND 1.0 0.20 ug/l 75-65-0 Tert-Butyl Alcohol ND 10 2.0 ug/l 762-75-4 Tert-Butyl Formate ND 10 2.0 ug/l 630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l 79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l 127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l 108-88-3 Toluene ND 0.50 0.13 ug/l 87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l 120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l 71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l 79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l 79-01-6 Trichloroethylene ND 0.50 0.13 ug/l 75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l 96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l 95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l 108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l 75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l m,p-Xylene ND 1.0 0.13 ug/l 95-47-6 o-Xylene ND 0.50 0.13 ug/l 1330-20-7 Xylene (total)ND 1.5 0.25 ug/l CAS No.Surrogate Recoveries Limits 1868-53-7 Dibromofluoromethane 96%70-130% 16 of 34 FA5295955.1.1 Method Blank Summary Page 3 of 3 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA2354-MB A0212618.D 1 04/03/18 TD n/a n/a VA2354 The QC reported here applies to the following samples:Method: SM 6200B FA52959-1 CAS No.Surrogate Recoveries Limits 17060-07-0 1,2-Dichloroethane-D4 87%70-130% 2037-26-5 Toluene-D8 99%70-130% 460-00-4 4-Bromofluorobenzene 104%70-130% 17 of 34 FA5295955.1.1 Blank Spike Summary Page 1 of 3 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA2354-BS A0212616.D 1 04/03/18 TD n/a n/a VA2354 The QC reported here applies to the following samples:Method: SM 6200B FA52959-1 Spike BSP BSP CAS No.Compound ug/l ug/l %Limits 71-43-2 Benzene 10 9.8 98 70-130 108-86-1 Bromobenzene 10 10.1 101 70-130 74-97-5 Bromochloromethane 10 9.6 96 70-130 75-27-4 Bromodichloromethane 10 8.9 89 70-130 75-25-2 Bromoform 10 9.7 97 70-130 104-51-8 n-Butylbenzene 10 10.3 103 70-130 135-98-8 sec-Butylbenzene 10 10.3 103 70-130 98-06-6 tert-Butylbenzene 10 9.6 96 70-130 56-23-5 Carbon Tetrachloride 10 8.3 83 70-130 108-90-7 Chlorobenzene 10 9.4 94 70-130 75-00-3 Chloroethane 10 9.6 96 60-140 67-66-3 Chloroform 10 8.9 89 70-130 95-49-8 o-Chlorotoluene 10 9.7 97 70-130 106-43-4 p-Chlorotoluene 10 10 100 70-130 124-48-1 Dibromochloromethane 10 9.8 98 70-130 96-12-8 1,2-Dibromo-3-chloropropane 10 8.8 88 70-130 106-93-4 1,2-Dibromoethane 10 10 100 70-130 75-71-8 Dichlorodifluoromethane 10 7.0 70 60-140 95-50-1 1,2-Dichlorobenzene 10 9.9 99 70-130 541-73-1 1,3-Dichlorobenzene 10 9.9 99 70-130 106-46-7 1,4-Dichlorobenzene 10 9.5 95 70-130 75-34-3 1,1-Dichloroethane 10 9.4 94 70-130 107-06-2 1,2-Dichloroethane 10 8.0 80 70-130 75-35-4 1,1-Dichloroethylene 10 8.8 88 70-130 156-59-2 cis-1,2-Dichloroethylene 10 9.9 99 70-130 156-60-5 trans-1,2-Dichloroethylene 10 8.9 89 70-130 78-87-5 1,2-Dichloropropane 10 9.9 99 70-130 142-28-9 1,3-Dichloropropane 10 9.6 96 70-130 594-20-7 2,2-Dichloropropane 10 8.3 83 70-130 563-58-6 1,1-Dichloropropene 10 9.4 94 70-130 10061-01-5 cis-1,3-Dichloropropene 10 9.6 96 70-130 10061-02-6 trans-1,3-Dichloropropene 10 9.3 93 70-130 108-20-3 Di-Isopropyl Ether 10 8.9 89 70-130 100-41-4 Ethylbenzene 10 9.3 93 70-130 637-92-3 Ethyl Tert Butyl Ether 10 9.7 97 70-130 87-68-3 Hexachlorobutadiene 10 9.5 95 70-130 * = Outside of Control Limits. 18 of 34 FA5295955.2.1 Blank Spike Summary Page 2 of 3 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA2354-BS A0212616.D 1 04/03/18 TD n/a n/a VA2354 The QC reported here applies to the following samples:Method: SM 6200B FA52959-1 Spike BSP BSP CAS No.Compound ug/l ug/l %Limits 98-82-8 Isopropylbenzene 10 10.3 103 70-130 99-87-6 p-Isopropyltoluene 10 10.5 105 70-130 74-83-9 Methyl Bromide 10 9.5 95 60-140 74-87-3 Methyl Chloride 10 10.3 103 60-140 74-95-3 Methylene Bromide 10 9.2 92 70-130 75-09-2 Methylene Chloride 10 8.2 82 70-130 1634-04-4 Methyl Tert Butyl Ether 10 9.3 93 70-130 91-20-3 Naphthalene 10 10.7 107 70-130 103-65-1 n-Propylbenzene 10 10 100 70-130 100-42-5 Styrene 10 10.0 100 70-130 75-85-4 Tert-Amyl Alcohol 100 116 116 70-130 994-05-8 Tert-Amyl Methyl Ether 10 9.2 92 70-130 75-65-0 Tert-Butyl Alcohol 100 120 120 70-130 762-75-4 Tert-Butyl Formate 100 73.2 73 70-130 630-20-6 1,1,1,2-Tetrachloroethane 10 9.2 92 70-130 79-34-5 1,1,2,2-Tetrachloroethane 10 10.2 102 70-130 127-18-4 Tetrachloroethylene 10 9.5 95 70-130 108-88-3 Toluene 10 9.9 99 70-130 87-61-6 1,2,3-Trichlorobenzene 10 9.9 99 70-130 120-82-1 1,2,4-Trichlorobenzene 10 10 100 70-130 71-55-6 1,1,1-Trichloroethane 10 8.3 83 70-130 79-00-5 1,1,2-Trichloroethane 10 10.1 101 70-130 79-01-6 Trichloroethylene 10 9.2 92 70-130 75-69-4 Trichlorofluoromethane 10 8.8 88 60-140 96-18-4 1,2,3-Trichloropropane 10 9.6 96 70-130 95-63-6 1,2,4-Trimethylbenzene 10 9.8 98 70-130 108-67-8 1,3,5-Trimethylbenzene 10 10.3 103 70-130 75-01-4 Vinyl Chloride 10 10.9 109 60-140 m,p-Xylene 20 19.2 96 70-130 95-47-6 o-Xylene 10 9.8 98 70-130 1330-20-7 Xylene (total)30 29.0 97 70-130 CAS No.Surrogate Recoveries BSP Limits 1868-53-7 Dibromofluoromethane 92%70-130% * = Outside of Control Limits. 19 of 34 FA5295955.2.1 Blank Spike Summary Page 3 of 3 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA2354-BS A0212616.D 1 04/03/18 TD n/a n/a VA2354 The QC reported here applies to the following samples:Method: SM 6200B FA52959-1 CAS No.Surrogate Recoveries BSP Limits 17060-07-0 1,2-Dichloroethane-D4 82%70-130% 2037-26-5 Toluene-D8 103%70-130% 460-00-4 4-Bromofluorobenzene 102%70-130% * = Outside of Control Limits. 20 of 34 FA5295955.2.1 Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch FA52959-1MS A0212636.D 50 04/04/18 TD n/a n/a VA2354 FA52959-1MSD A0212637.D 50 04/04/18 TD n/a n/a VA2354 FA52959-1 A0212632.D 50 04/04/18 TD n/a n/a VA2354 The QC reported here applies to the following samples:Method: SM 6200B FA52959-1 FA52959-1 Spike MS MS Spike MSD MSD Limits CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD 71-43-2 Benzene 1660 500 2170 102 500 2150 98 1 70-130/20 108-86-1 Bromobenzene ND 500 500 100 500 505 101 1 70-130/20 74-97-5 Bromochloromethane ND 500 461 92 500 468 94 2 70-130/20 75-27-4 Bromodichloromethane ND 500 402 80 500 400 80 0 70-130/20 75-25-2 Bromoform ND 500 330 66*500 371 74 12 70-130/20 104-51-8 n-Butylbenzene 55.9 500 586 106 500 591 107 1 70-130/20 135-98-8 sec-Butylbenzene 28.6 500 561 106 500 572 109 2 70-130/20 98-06-6 tert-Butylbenzene ND 500 493 99 500 493 99 0 70-130/20 56-23-5 Carbon Tetrachloride ND 500 407 81 500 385 77 6 70-130/20 108-90-7 Chlorobenzene ND 500 475 95 500 471 94 1 70-130/20 75-00-3 Chloroethane ND 500 481 96 500 469 94 3 60-140/20 67-66-3 Chloroform ND 500 438 88 500 432 86 1 70-130/20 95-49-8 o-Chlorotoluene ND 500 494 99 500 491 98 1 70-130/20 106-43-4 p-Chlorotoluene ND 500 497 99 500 495 99 0 70-130/20 124-48-1 Dibromochloromethane ND 500 386 77 500 400 80 4 70-130/20 96-12-8 1,2-Dibromo-3-chloropropane ND 500 504 101 500 505 101 0 70-130/20 106-93-4 1,2-Dibromoethane ND 500 489 98 500 498 100 2 70-130/20 75-71-8 Dichlorodifluoromethane ND 500 365 73 500 346 69 5 60-140/20 95-50-1 1,2-Dichlorobenzene ND 500 498 100 500 499 100 0 70-130/20 541-73-1 1,3-Dichlorobenzene ND 500 510 102 500 506 101 1 70-130/20 106-46-7 1,4-Dichlorobenzene ND 500 476 95 500 476 95 0 70-130/20 75-34-3 1,1-Dichloroethane ND 500 457 91 500 454 91 1 70-130/20 107-06-2 1,2-Dichloroethane ND 500 378 76 500 371 74 2 70-130/20 75-35-4 1,1-Dichloroethylene ND 500 439 88 500 434 87 1 70-130/20 156-59-2 cis-1,2-Dichloroethylene ND 500 497 99 500 488 98 2 70-130/20 156-60-5 trans-1,2-Dichloroethylene ND 500 442 88 500 424 85 4 70-130/20 78-87-5 1,2-Dichloropropane ND 500 495 99 500 495 99 0 70-130/20 142-28-9 1,3-Dichloropropane ND 500 479 96 500 488 98 2 70-130/20 594-20-7 2,2-Dichloropropane ND 500 326 65*500 315 63*3 70-130/20 563-58-6 1,1-Dichloropropene ND 500 474 95 500 466 93 2 70-130/20 10061-01-5 cis-1,3-Dichloropropene ND 500 449 90 500 428 86 5 70-130/20 10061-02-6 trans-1,3-Dichloropropene ND 500 432 86 500 418 84 3 70-130/20 108-20-3 Di-Isopropyl Ether 53.7 500 482 86 500 484 86 0 70-130/20 100-41-4 Ethylbenzene 1010 500 1480 94 500 1470 92 1 70-130/20 637-92-3 Ethyl Tert Butyl Ether ND 500 467 93 500 472 94 1 70-130/20 87-68-3 Hexachlorobutadiene ND 500 482 96 500 478 96 1 70-130/20 * = Outside of Control Limits. 21 of 34 FA5295955.3.1 Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch FA52959-1MS A0212636.D 50 04/04/18 TD n/a n/a VA2354 FA52959-1MSD A0212637.D 50 04/04/18 TD n/a n/a VA2354 FA52959-1 A0212632.D 50 04/04/18 TD n/a n/a VA2354 The QC reported here applies to the following samples:Method: SM 6200B FA52959-1 FA52959-1 Spike MS MS Spike MSD MSD Limits CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD 98-82-8 Isopropylbenzene 172 500 718 109 500 718 109 0 70-130/20 99-87-6 p-Isopropyltoluene ND 500 540 108 500 541 108 0 70-130/20 74-83-9 Methyl Bromide ND 500 464 93 500 448 90 4 60-140/20 74-87-3 Methyl Chloride ND 500 468 94 500 509 102 8 60-140/20 74-95-3 Methylene Bromide ND 500 470 94 500 448 90 5 70-130/20 75-09-2 Methylene Chloride ND 500 393 79 500 390 78 1 70-130/20 1634-04-4 Methyl Tert Butyl Ether 43.0 500 495 90 500 503 92 2 70-130/20 91-20-3 Naphthalene 133 500 669 107 500 703 114 5 70-130/20 103-65-1 n-Propylbenzene 465 500 995 106 500 987 104 1 70-130/20 100-42-5 Styrene ND 500 498 100 500 509 102 2 70-130/20 75-85-4 Tert-Amyl Alcohol 612 5000 6150 111 5000 6520 118 6 70-130/20 994-05-8 Tert-Amyl Methyl Ether ND 500 451 90 500 463 93 3 70-130/20 75-65-0 Tert-Butyl Alcohol ND 5000 6980 140*5000 7060 141*1 70-130/20 762-75-4 Tert-Butyl Formate ND 5000 3750 75 5000 4050 81 8 70-130/20 630-20-6 1,1,1,2-Tetrachloroethane ND 500 454 91 500 442 88 3 70-130/20 79-34-5 1,1,2,2-Tetrachloroethane ND 500 528 106 500 539 108 2 70-130/20 127-18-4 Tetrachloroethylene ND 500 486 97 500 483 97 1 70-130/20 108-88-3 Toluene 22.0 J 500 527 101 500 531 102 1 70-130/20 87-61-6 1,2,3-Trichlorobenzene ND 500 500 100 500 515 103 3 70-130/20 120-82-1 1,2,4-Trichlorobenzene ND 500 520 104 500 523 105 1 70-130/20 71-55-6 1,1,1-Trichloroethane ND 500 403 81 500 393 79 3 70-130/20 79-00-5 1,1,2-Trichloroethane ND 500 548 110 500 565 113 3 70-130/20 79-01-6 Trichloroethylene ND 500 459 92 500 444 89 3 70-130/20 75-69-4 Trichlorofluoromethane ND 500 424 85 500 417 83 2 60-140/20 96-18-4 1,2,3-Trichloropropane ND 500 457 91 500 485 97 6 70-130/20 95-63-6 1,2,4-Trimethylbenzene 7.6 J 500 506 100 500 507 100 0 70-130/20 108-67-8 1,3,5-Trimethylbenzene ND 500 519 104 500 522 104 1 70-130/20 75-01-4 Vinyl Chloride ND 500 543 109 500 547 109 1 60-140/20 m,p-Xylene 23.9 J 1000 995 97 1000 995 97 0 70-130/20 95-47-6 o-Xylene ND 500 510 102 500 518 104 2 70-130/20 1330-20-7 Xylene (total)23.9 J 1500 1510 99 1500 1510 99 0 70-130/20 CAS No.Surrogate Recoveries MS MSD FA52959-1 Limits 1868-53-7 Dibromofluoromethane 89%89%94%70-130% * = Outside of Control Limits. 22 of 34 FA5295955.3.1 Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch FA52959-1MS A0212636.D 50 04/04/18 TD n/a n/a VA2354 FA52959-1MSD A0212637.D 50 04/04/18 TD n/a n/a VA2354 FA52959-1 A0212632.D 50 04/04/18 TD n/a n/a VA2354 The QC reported here applies to the following samples:Method: SM 6200B FA52959-1 CAS No.Surrogate Recoveries MS MSD FA52959-1 Limits 17060-07-0 1,2-Dichloroethane-D4 78%78%88%70-130% 2037-26-5 Toluene-D8 103%104%102%70-130% 460-00-4 4-Bromofluorobenzene 101%101%100%70-130% * = Outside of Control Limits. 23 of 34 FA5295955.3.1 SGS North America Inc. GC Volatiles QC Data Summaries Includes the following where applicable: • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries Orlando, FL Section 6 24 of 34 FA529596 Method Blank Summary Page 1 of 1 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch OP69450-MB DD98587.D 1 04/03/18 NM 04/03/18 OP69450 GDD2868 The QC reported here applies to the following samples:Method: EPA 504.1 FA52959-1 CAS No.Compound Result RL MDL Units Q 106-93-4 1,2-Dibromoethane ND 0.020 0.010 ug/l CAS No.Surrogate Recoveries Limits 460-00-4 4-Bromofluorobenzene 92%63-137% 25 of 34 FA5295966.1.1 Blank Spike Summary Page 1 of 1 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch OP69450-BS DD98586.D 1 04/03/18 NM 04/03/18 OP69450 GDD2868 The QC reported here applies to the following samples:Method: EPA 504.1 FA52959-1 Spike BSP BSP CAS No.Compound ug/l ug/l %Limits 106-93-4 1,2-Dibromoethane 0.25 0.26 104 70-130 CAS No.Surrogate Recoveries BSP Limits 460-00-4 4-Bromofluorobenzene 95%63-137% * = Outside of Control Limits. 26 of 34 FA5295966.2.1 Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1 Job Number:FA52959 Account:GRINCC GRI (Geological Resources Inc.) Project:Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch OP69450-MS DD98590.D 1 04/03/18 NM 04/03/18 OP69450 GDD2868 OP69450-MSD DD98591.D 1 04/03/18 NM 04/03/18 OP69450 GDD2868 FA52839-2 DD98589.D 1 04/03/18 NM 04/03/18 OP69450 GDD2868 The QC reported here applies to the following samples:Method: EPA 504.1 FA52959-1 FA52839-2 Spike MS MS Spike MSD MSD Limits CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD 106-93-4 1,2-Dibromoethane 0.019 U 0.242 0.21 87 0.249 0.22 89 5 70-130/25 CAS No.Surrogate Recoveries MS MSD FA52839-2 Limits 460-00-4 4-Bromofluorobenzene 78%83%84%63-137% * = Outside of Control Limits. 27 of 34 FA5295966.3.1 SGS North America Inc. Metals Analysis QC Data Summaries Includes the following where applicable: • Method Blank Summaries • Matrix Spike and Duplicate Summaries • Blank Spike and Lab Control Sample Summaries • Serial Dilution Summaries Orlando, FL Section 7 28 of 34 FA529597 BLANK RESULTS SUMMARY Part 2 - Method Blanks Login Number: FA52959 Account: GRINCC - GRI (Geological Resources Inc.) Project: Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC QC Batch ID: MP33545 Methods: SW846 6010D Matrix Type: AQUEOUS Units: ug/l Prep Date: 04/03/18 MB Metal RL IDL MDL raw final Aluminum 200 14 14 Antimony 6.0 1 1 Arsenic 10 1.3 1.3 Barium 200 1 1 Beryllium 4.0 .2 .2 Cadmium 5.0 .2 .2 Calcium 1000 50 50 Chromium 10 1 1 Cobalt 50 .2 .2 Copper 25 1 1 Iron 300 17 17 Lead 5.0 1 1.1 0.90 <5.0 Magnesium 5000 35 35 Manganese 15 .5 1 Molybdenum 50 .3 .3 Nickel 40 .4 .4 Potassium 10000 200 200 Selenium 10 2.4 2.9 Silver 10 .7 .7 Sodium 10000 500 500 Strontium 10 .5 .5 Thallium 10 1.1 1.4 Tin 50 .9 1 Titanium 10 .5 1 Vanadium 50 .5 .6 Zinc 20 3 4.4 Associated samples MP33545: FA52959-1 Results < IDL are shown as zero for calculation purposes (*) Outside of QC limits (anr) Analyte not requested _________________________________________________________________________________________________________ Page 1 29 of 34 FA5295977.1.1 MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY Login Number: FA52959 Account: GRINCC - GRI (Geological Resources Inc.) Project: Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC QC Batch ID: MP33545 Methods: SW846 6010D Matrix Type: AQUEOUS Units: ug/l Prep Date: 04/03/18 04/03/18 FA52895-4 QC FA52895-4 Spikelot QC Metal Original DUP RPD Limits Original MS MPFLICP2 % Rec Limits Aluminum Antimony Arsenic anr Barium Beryllium Cadmium anr Calcium Chromium anr Cobalt anr Copper anr Iron Lead 0.0 0.0 NC 0-20 0.0 483 500 96.6 80-120 Magnesium Manganese Molybdenum Nickel Potassium Selenium anr Silver anr Sodium Strontium Thallium Tin anr Titanium Vanadium Zinc anr Associated samples MP33545: FA52959-1 Results < IDL are shown as zero for calculation purposes (*) Outside of QC limits (N) Matrix Spike Rec. outside of QC limits (anr) Analyte not requested _________________________________________________________________________________________________________ Page 1 30 of 34 FA5295977.1.2 MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY Login Number: FA52959 Account: GRINCC - GRI (Geological Resources Inc.) Project: Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC QC Batch ID: MP33545 Methods: SW846 6010D Matrix Type: AQUEOUS Units: ug/l Prep Date: 04/03/18 FA52895-4 Spikelot MSD QC Metal Original MSD MPFLICP2 % Rec RPD Limit Aluminum Antimony Arsenic anr Barium Beryllium Cadmium anr Calcium Chromium anr Cobalt anr Copper anr Iron Lead 0.0 471 500 94.2 2.5 20 Magnesium Manganese Molybdenum Nickel Potassium Selenium anr Silver anr Sodium Strontium Thallium Tin anr Titanium Vanadium Zinc anr Associated samples MP33545: FA52959-1 Results < IDL are shown as zero for calculation purposes (*) Outside of QC limits (N) Matrix Spike Rec. outside of QC limits (anr) Analyte not requested _________________________________________________________________________________________________________ Page 2 31 of 34 FA5295977.1.2 SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY Login Number: FA52959 Account: GRINCC - GRI (Geological Resources Inc.) Project: Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC QC Batch ID: MP33545 Methods: SW846 6010D Matrix Type: AQUEOUS Units: ug/l Prep Date: 04/03/18 BSP Spikelot QC Metal Result MPFLICP2 % Rec Limits Aluminum Antimony Arsenic anr Barium Beryllium Cadmium anr Calcium Chromium anr Cobalt anr Copper anr Iron Lead 483 500 96.6 80-120 Magnesium Manganese Molybdenum Nickel Potassium Selenium anr Silver anr Sodium Strontium Thallium Tin anr Titanium Vanadium Zinc anr Associated samples MP33545: FA52959-1 Results < IDL are shown as zero for calculation purposes (*) Outside of QC limits (anr) Analyte not requested _________________________________________________________________________________________________________ Page 1 32 of 34 FA5295977.1.3 SERIAL DILUTION RESULTS SUMMARY Login Number: FA52959 Account: GRINCC - GRI (Geological Resources Inc.) Project: Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC QC Batch ID: MP33545 Methods: SW846 6010D Matrix Type: AQUEOUS Units: ug/l Prep Date: 04/03/18 FA52895-4 QC Metal Original SDL 1:5 %DIF Limits Aluminum Antimony Arsenic anr Barium Beryllium Cadmium anr Calcium Chromium anr Cobalt anr Copper anr Iron Lead 0.00 0.00 NC 0-10 Magnesium Manganese Molybdenum Nickel Potassium Selenium anr Silver anr Sodium Strontium Thallium Tin anr Titanium Vanadium Zinc anr Associated samples MP33545: FA52959-1 Results < IDL are shown as zero for calculation purposes (*) Outside of QC limits (anr) Analyte not requested _________________________________________________________________________________________________________ Page 1 33 of 34 FA5295977.1.4 POST DIGESTATE SPIKE SUMMARY Login Number: FA52959 Account: GRINCC - GRI (Geological Resources Inc.) Project: Elizabeth City Garage; 410 Pritchard St, Elizabeth City, NC QC Batch ID: MP33545 Methods: SW846 6010D Matrix Type: AQUEOUS Units: ug/l Prep Date: 04/03/18 Sample Final FA52895-4 PS Spike Spike Spike QC Metal ml ml Raw Corr.** ug/l ml ug/ml ug/l % Rec Limits Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Cobalt Copper Iron Lead 9.8 10 44.1 0.2 2.5 50 88.2 80-120 Magnesium Manganese Molybdenum Nickel Potassium Selenium Silver Sodium Strontium Thallium Tin Titanium Vanadium Zinc Associated samples MP33545: FA52959-1 Results < IDL are shown as zero for calculation purposes (*) Outside of QC limits (**) Corr. sample result = Raw * (sample volume / final volume) (anr) Analyte not requested _________________________________________________________________________________________________________ Page 1 34 of 34 FA5295977.1.5