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Home My WebLink AboutWA-92994_96856_CA_RPTS_20221021314 Beacon Drive Winterville, NC 28590 P:(252) 353-1600 Terracon.com October 21, 2022 River Station Development Corporation, LLC 227 East Front Street New Bern, NC 28560 Attention:Mr. Scott Tolson stolson@absolutealphacm.com Subject:Report of Limited Soil Sampling Services River Station Construction Release 806 E. Front Street New Bern, Craven County, NC Terracon Project No. 72227110 Dear Mr. Tolson: Terracon Consultants, Inc. (Terracon) is pleased to present the results of the limited soil sampling performed at the River Station property located at 806 E. Front Street in New Bern, Craven County, North Carolina. As outlined in our proposal P72227110, dated October 3, 2022, our scope of service was limited to the collection of one confirmation soils sample, submission of the sample to a certified laboratory and reporting the analytical results. A.PROJECT INFORMATION Terracon understands that an approximate 20-gallon diesel spill occurred on August 9, 2022 from construction equipment located at 806 E. Front Street in New Bern, NC. Based on our conversation, we understand that a telescoping lift overturned on site, which caused a release from the fuel tank. You submitted a UST-62 Form to the Washington Regional Office of the NCDEQ. We also understand that the contaminated soil has been removed and hauled offsite for disposal. The resultant excavation has been backfilled. Based on email correspondence from NCDEQ, a confirmation sample from the bottom of the excavation is required for site closure. The confirmation sample was to be tested for Total Petroleum Hydrocarbons, Diesel Range Organics (TPH DRO) using EPA Test Method 8015. B.FIELD WORK Terracon mobilized to the site on October 4, 2022 to collect the soil sample. We met onsite with Mr. Tolson who indicated on site where the release occurred. At the sample location, the area was backfilled with mortar sand. The sample location is depicted on the attached UST-62 Form. Using a clean hand auger, one soil sample was obtained by hand auger through the fill into the native soils. The soil sample was obtained at a depth of approximately 2.5 feet in the upper portion of the native soils. The sample was removed from the hand auger using gloved hands and placed into a laboratory prepared jar. Report of Limited Soil Sampling ServicesRiver Station ■ New Bern, NC October 21, 2022 ■ Terracon Project No. 72227110 2 The soil sample was packed on ice in a cooler and sent overnight to Pace Analytical, Inc. (Pace) in Huntersville, NC for analysis of Diesel Range Organics (DRO). The samples were analyzed using a standard turnaround time. C.FINDINGS AND RECOMMENDATIONS Soil sample SS-1 indicated TPH DRO at a concentration of 16.2 mg/kg which is below the NCDEQ’s Action Level of 100 mg/kg. A copy of this report should be submitted to NCDEQ to support closure of the incident. A copy of the laboratory data sheets and chain-of-custody for this sampling is attached with this report. D.LIMITATIONS The analysis and opinions expressed in this report are based upon data obtained from the soil samples collected at the indicated locations and from any other information discussed in this report. This report does not reflect any variations in subsurface chemistry, stratigraphy, of geohydrology which may occur between borings or across the site. Actual subsurface conditions may vary and may not become evident without further exploration. Terracon’s services were performed in a manner consistent with generally accepted practices of the profession undertaken in similar studies in the same geographical area during the same time period. Terracon makes no warranties, either express or implied, regarding the findings, conclusions or recommendations. Please note that Terracon does not warrant the work of laboratories, regulatory agencies or other third parties supplying information used in the preparation of the report. These limited soil sampling services were performed in accordance with the scope of work agreed with you, our client, as reflected in our proposal. This report is prepared for the exclusive use of Dawson Construction Services, Inc. for specific application to the project discussed and has been prepared in accordance with generally accepted environmental engineering practices. No warranties, express or implied, are intended or made. In the event any changes in the nature or location of observed conditions outlined in this report are found, this report cannot be considered valid unless these changes are reviewed and the opinions of this report are modified or verified in writing by Terracon. Report of Limited Soil Sampling ServicesRiver Station ■ New Bern, NC October 21, 2022 ■ Terracon Project No. 72227110 3 Terracon appreciates the opportunity to provide this service to River Station Development Corporation, LLC. If you have any questions regarding this limited asbestos sampling report, please contact the undersigned at (252) 353-1600. Sincerely, Terracon Consultants, Inc. Carl F. Bonner, PE M. Neal McElveen, PE Principal / Office Manager Principal / Sr. Environmental Consultant Attachments: UST-62 Form Laboratory Data Sheets and Chain-of-Custody #=CL# October 11, 2022 LIMS USE: FR - CARL BONNER LIMS OBJECT ID: 92629296 92629296 Project: Pace Project No.: RE: Carl Bonner Terracon 314 Beacon Drive Winterville, NC 28590 RIVER STATION 72227110 Dear Carl Bonner: Enclosed are the analytical results for sample(s) received by the laboratory on October 05, 2022. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Taylor M Cannon taylor.cannon@pacelabs.com Project Manager (704)875-9092 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 12 #=CP# CERTIFICATIONS Pace Project No.: Project: 92629296 RIVER STATION 72227110 Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 12 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92629296 RIVER STATION 72227110 Lab ID Sample ID Matrix Date Collected Date Received 92629296001 SS-1 Solid 10/04/22 10:15 10/05/22 10:00 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 12 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92629296 RIVER STATION 72227110 Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92629296001 SS-1 EPA 8015C 2 PASI-CAP2 SW-846 1 PASI-CKDF PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 12 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92629296 RIVER STATION 72227110 Sample:SS-1 Lab ID:92629296001 Collected:10/04/22 10:15 Received:10/05/22 10:00 Matrix:Solid Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions. Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit Analytical Method: EPA 8015C Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)16.2 mg/kg 10/11/22 11:4010/10/22 15:596.3 1 Surrogates n-Pentacosane (S)73 %10/11/22 11:40 629-99-210/10/22 15:5910-130 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 19.8 %10/06/22 16:09 N20.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/11/2022 03:13 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 12 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92629296 RIVER STATION 72227110 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 729094 EPA 3546 EPA 8015C 8015 Solid GCSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92629296001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3796865 Associated Lab Samples:92629296001 Matrix:Solid Analyzed Diesel Range Organics(C10-C28)mg/kg ND 5.0 10/11/22 11:06 n-Pentacosane (S)%80 10-130 10/11/22 11:06 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3796866LABORATORY CONTROL SAMPLE: LCSSpike Diesel Range Organics(C10-C28)mg/kg 48.866.9 73 44-130 n-Pentacosane (S)%77 10-130 Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 3796867MATRIX SPIKE SAMPLE: MSSpike Result 92628878001 Diesel Range Organics(C10-C28)mg/kg 14800 H3,M174.1 6610 10-1309880 n-Pentacosane (S)%S0544010-130 Parameter Units Dup Result Max RPD QualifiersRPDResult 92629437002 3797132SAMPLE DUPLICATE: Diesel Range Organics(C10-C28)mg/kg ND 30ND n-Pentacosane (S)%7773 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/11/2022 03:13 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 12 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92629296 RIVER STATION 72227110 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 728493 SW-846 SW-846 Dry Weight/Percent Moisture Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92629296001 Parameter Units Dup Result Max RPD QualifiersRPDResult 92629294001 3793899SAMPLE DUPLICATE: Percent Moisture %9.3 N20259.2 Parameter Units Dup Result Max RPD QualifiersRPDResult 92629437006 3793900SAMPLE DUPLICATE: Percent Moisture %10.1 N222510.3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/11/2022 03:13 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 12 #=QL# QUALIFIERS Pace Project No.: Project: 92629296 RIVER STATION 72227110 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Sample was received or analysis requested beyond the recognized method holding time.H3 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 The lab does not hold NELAC/TNI accreditation for this parameter but other accreditations/certifications may apply. A complete list of accreditations/certifications is available upon request.N2 Surrogate recovery outside laboratory control limits.S0 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/11/2022 03:13 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 12 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92629296 RIVER STATION 72227110 Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92629296001 729094 729287SS-1 EPA 3546 EPA 8015C 92629296001 728493SS-1 SW-846 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/11/2022 03:13 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 12 Page 10 of 12 Page 11 of 12 Page 12 of 12