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Home My WebLink AboutFA-29813_48918_C_CL_20230323 UST CLOSURE REPORT DESCRIPTION: NC 42 AT NC 96 ROUNDABOUT TIP NO: W-5704S WBS: 44850.1.19 NCDOT PARCEL NO: 01 OWNER: RAYMOND E EARP JR. FAMILY TRUST LOCATION: 7230 NC HWY 42 E, SELMA, JOHNSTON COUNTY, NC NCPIN: 261900-14-7863 PREPARED FOR: NORTH CAROLINA DEPARTMENT OF TRANSPORTATION GEOTECHNICAL ENGINEERING UNIT 1020 BIRCH RIDGE DRIVE RALEIGH, NC 27610 PREPARED BY: FALCON ENGINEERING, INC. 1210 TRINITY ROAD, SUITE 110 CARY, NC 27513 PROJECT NUMBER: G23010.00 MARCH 23, 2023 FALCON ENGINEERING, INC. / 1210 TRINITY ROAD, SUITE 110 RALEIGH, NC 27607 / P: 919-871-0800 / F: 919-871-0803 / WWW.FALCONENGINEERS.COM FALCON ENGINEERING, INC. / 1210 TRINITY ROAD, SUITE 110 CARY, NC 27513 / P: 919-871-0800 / WWW.FALCONENGINEERS.COM March 23, 2023 Mr. Craig Haden Geoenvironmental Project Manager Geotechnical Engineering Unit North Carolina Department of Transportation 1020 Birch Ridge Drive Raleigh, NC 27610 Re: UST Closure Report Description: NC 42 at NC 96 Roundabout TIP No: W-5704S WBS: 44850.1.19 NCDOT Parcel No: 01 Owner: Raymond E Earp Jr. Family Trust Location: 7534 Nc Hwy 42, Selma, Johnston County, NC NCPIN: 261900-14-7863 Craig: Falcon is pleased to present the following Underground Storage Tank (UST) Closure Report in support of the above- mentioned Project. This Report documents the closure by removal of two orphaned 4x8 foot (~750-gallon) USTs. Laboratory analysis of gasoline and diesel range organics (GRO and DRO) identified GRO at 102 mg/kg and DRO at 182 mg/kg in Sample P1S4 which are above their respective action limits of 50 and 100 mg/kg. Risk-based analysis of sample P1S4 did not identify constituents above Residential maximum soil contamination concentrations (MSCCs). Risk- based analysis identified two aromatics (C11-C22 and C9-C10) at 113 and 48.3 mg/kg which is above their soil to groundwater (SGW) MSCCs of 31 mg/kg for both but below the Residential MSCCs of 469 for both. Falcon recommends this report be submitted to the State UST section. Please review this report and advise us if you have any questions or concerns. We appreciate this opportunity to provide services to you and look forward to partnering with you on future projects. If you have any questions, please give Falcon a call at (919) 871-0800. Sincerely, FALCON ENGINEERING, INC. Document not considered Final unless all signatures are completed. Christopher J. Burkhardt Sophia Ross Jeremy R. Hamm, PE Environmental Services Manager Geotechnical Staff Professional Geotechnical Services Manager PROJECT:REFERENCE:AT TIME OF INVESTIGATION SEE SHEET 3 FOR PLAN SHEET LAYOUT CHECKED BY SUBMITTED BY DATE INVESTIGATED BY DRAWN BY PERSONNEL EVANS, T. E. EVANS, T. E. EVANS, T. E. FALCON ENG. CAUTION NOTICE THE SITE DIFFERING FROM THOSE INDICATED IN THE SUBSURFACE INFORMATION. EXTENSION OF TIME FOR ANY REASON RESULTING FROM THE ACTUAL CONDITIONS ENCOUNTERED AT PROJECT. THE CONTRACTOR SHALL HAVE NO CLAIM FOR ADDITIONAL COMPENSATION OR FOR AN AS HE DEEMS NECESSARY TO SATISFY HIMSELF AS TO CONDITIONS TO BE ENCOUNTERED ON THE THE BIDDER OR CONTRACTOR IS CAUTIONED TO MAKE SUCH INDEPENDENT SUBSURFACE INVESTIGATIONS OPINION OF THE DEPARTMENT AS TO THE TYPE OF MATERIALS AND CONDITIONS TO BE ENCOUNTERED. SUFFICIENCY OR ACCURACY OF THE INVESTIGATION MADE, NOR THE INTERPRETATIONS MADE, OR DESIGN INFORMATION ON THIS PROJECT. THE DEPARTMENT DOES NOT WARRANT OR GUARANTEE THE AND CONSTRUCTION PURPOSES, REFER TO THE CONSTRUCTION PLANS AND DOCUMENTS FOR FINAL PRELIMINARY ONLY AND IN MANY CASES THE FINAL DESIGN DETAILS ARE DIFFERENT. FOR BIDDING THE BIDDER OR CONTRACTOR IS CAUTIONED THAT DETAILS SHOWN ON THE SUBSURFACE PLANS ARE INCLUDING TEMPERATURES, PRECIPITATION AND WIND, AS WELL AS OTHER NON-CLIMATIC FACTORS. SOIL MOISTURE CONDITIONS MAY VARY CONSIDERABLY WITH TIME ACCORDING TO CLIMATIC CONDITIONS INVESTIGATIONS ARE AS RECORDED AT THE TIME OF THE INVESTIGATION. THESE WATER LEVELS OR THE OBSERVED WATER LEVELS OR SOIL MOISTURE CONDITIONS INDICATED IN THE SUBSURFACE CAN BE RELIED ON ONLY TO THE DEGREE OF RELIABILITY INHERENT IN THE STANDARD TEST METHOD. WITHIN THE BOREHOLE. THE LABORATORY SAMPLE DATA AND THE IN SITU (IN-PLACE) TEST DATA REFLECT THE ACTUAL SUBSURFACE CONDITIONS BETWEEN BORINGS OR BETWEEN SAMPLED STRATA GEOTECHNICAL INTERPRETATION OF ALL AVAILABLE SUBSURFACE DATA AND MAY NOT NECESSARILY GENERAL SOIL AND ROCK STRATA DESCRIPTIONS AND INDICATED BOUNDARIES ARE BASED ON A BORING LOGS, ROCK CORES AND SOIL TEST DATA ARE NOT PART OF THE CONTRACT. GEOTECHNICAL ENGINEERING UNIT AT (919) 707-6850. THE SUBSURFACE PLANS AND REPORTS, FIELD BE REVIEWED OR INSPECTED IN RALEIGH BY CONTACTING THE N. C. DEPARTMENT OF TRANSPORTATION, PURPOSES. THE VARIOUS FIELD BORING LOGS, ROCK CORES AND SOIL TEST DATA AVAILABLE MAY MADE FOR THE PURPOSE OF STUDY, PLANNING AND DESIGN, AND NOT FOR CONSTRUCTION OR PAY THE SUBSURFACE INFORMATION AND THE SUBSURFACE INVESTIGATION ON WHICH IT IS BASED WERE CONTENTS COUNTY PROJECT DESCRIPTION STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS GEOTECHNICAL ENGINEERING UNIT SUBSURFACE INVESTIGATION ROADWAY LINESTATIONPLANPROFILE CONDITIONS INDICATED HEREIN AND THE ACTUAL CONDITIONS AT THE PROJECT SITE. FOR INCREASED COMPENSATION OR EXTENSION OF TIME BASED ON DIFFERENCES BETWEEN THE BY HAVING REQUESTED THIS INFORMATION, THE CONTRACTOR SPECIFICALLY WAIVES ANY CLAIMS2. OR CONTRACT FOR THE PROJECT. OF TRANSPORTATION AS ACCURATE NOR IS IT CONSIDERED PART OF THE PLANS, SPECIFICATIONS THE INFORMATION CONTAINED HEREIN IS NOT IMPLIED OR GUARANTEED BY THE N. C. DEPARTMENT1. NOTES: DATESIGNATURE 1STATE PROJECT REFERENCE NO.STATE NO.SHEET SHEETSTOTALN.C.B-5301 PITT REPLACE BRIDGE NO. 87 OVER NORFOLK SOUTHERN RAILROAD ON NC 33B-530146015 HAMM, J. R. MID ATLANTIC DRILLING -L-13+00 - 35+604-5 -DR1- -DR2- -DR3- 6 7 7 7 4 4 5 10+16.94 - 14+68.41 11+09.81 - 19+66.26 10+00 - 15+65 CROSS SECTIONS LINESTATIONSHEETS -L- APPENDICES APPENDIXTITLESHEETS A INVENTORY 23 14+00 - 32+505-14 -DR1-17+50 - 19+5015 CPT LOGS16-23 SEPTEMBER 2015 MMAH .R YME REJ 039779PROFESSIONALE NGINEER N ORTH CARO LINA SEAL 03/23/2023 UST CLOSURE REPORT NCDOT / W-5704S PARCEL NO. 01 / G23010.00 / MARCH 23, 2023 3 TABLE OF CONTENTS SECTION 1: SITE INFORMATION ................................................................................. 4 1.1 SITE IDENTIFICATION .......................................................................................... 4 1.2 INFORMATION ABOUT CONTACTS ASSOCIATED WITH THE RELEASE ....... 4 1.3 INFORMATION ABOUT RELEASE ....................................................................... 4 SECTION 2: SITE HISTORY AND CHARACTERIZATION ............................................. 5 SECTION 3: CLOSURE PROCEDURE .......................................................................... 6 SECTION 4: SITE INVESTIGATION ............................................................................... 7 4.1 FIELD SCREENING .............................................................................................. 7 4.2 SAMPLE COLLECTION ........................................................................................ 7 4.3 METHODS ............................................................................................................. 7 4.4 ANALYTICAL RESULTS ....................................................................................... 7 SECTION 5: CONCLUSIONS AND RECOMMENDATIONS ........................................... 9 LIST OF ATTACHMENTS TABLE B-3: SUMMARY OF SOIL SAMPLING RESULTS VICINITY MAP USGS TOPO MAP AERIAL PHOTOGRAPH PARCEL INFORMATION SAMPLE LOCATION SKETCH SAMPLE LOCATION MAP SITE PHOTOGRAPHS LABORATORY RESULTS CONSTRUCTION PERMIT MANIFESTS RESUMES UST CLOSURE REPORT NCDOT / W-5704S PARCEL NO. 01 / G23010.00 / MARCH 23, 2023 4 SECTION 1: SITE INFORMATION 1.1 SITE IDENTIFICATION Date of Report: March 23, 2023 Site Risk: TBD Facility I.D.: 00-0-0000047607 UST Incident Number (if known): Unknown Site Name: Raymond E Earp Jr. Family Trust Property Street Address: 7534 NC Hwy 42 City/Town: Selma Zip Code: 27576 County: Johnston Description of Geographical Data Point (e.g., diesel fill port): Former UST Pit Location Method (GPS, topographical map, other): GPS Latitude (decimal degrees): 35.662421 Longitude (decimal degrees): -78.280063 1.2 INFORMATION ABOUT CONTACTS ASSOCIATED WITH THE RELEASE UST/AST Owner: Unknown Email: Unknown Address: Unknown Tel: Unknown UST/AST Operator: Unknown Email: Unknown Address: Unknown Tel: Unknown Property Owner: Unknown Email: Unknown Address: Unknown Tel: Unknown Property Occupant: Unknown Email: Unknown Address: Unknown Tel: Unknown Consultant/Contractor: Mr. Jeremy Hamm P.E. Email: jhamm@falconengineers.com Address: 1210 Trinity Rd, Suite 110, Cary NC 27513 Tel: 919-302-9758 Analytical Laboratory: Waypoint Analytical State Certification No: 402 Address: 449 Springbrook Rd, P.O. Box 240543, Charlotte, NC 28224 Tel: (800) 529-6364 1.3 INFORMATION ABOUT RELEASE Date Discovered: Unknown Estimated Quantity of Release: Unknown Cause of Release: Unknown Source of Release (e.g., Dispenser/Piping/UST): UST/System Sizes and Contents of Tanks or Other Containment from which the Release Occurred: Unknown UST CLOSURE REPORT NCDOT / W-5704S PARCEL NO. 01 / G23010.00 / MARCH 23, 2023 5 SECTION 2: SITE HISTORY AND CHARACTERIZATION The underground storage tank (UST) owners, operators, contact information, install dates, dates of use, and last contents are unknown. NCDOT is proposing to construct a roundabout at this intersection. Falcon Engineering, Inc. (Falcon) completed a Preliminary Site Assessment (PSA) of NCDOT TIP Project W-5704S Parcel No. 01 dated September 27, 2021. Parcel 01 is Owned by the Raymond E Earp Jr. Trust and is addressed as 7959 NC 42 in Selma, Johnston County, North Carolina. North Carolina Parcel Identification Number (NCPIN) 261900-14-7863 corresponds to this parcel. Falcon spoke with the occupant of the north adjoining residence and was informed this parcel has been vacant for at least the last 20 years to the best of their knowledge. As part of the previously prepared PSA, a geophysical investigation was performed on September 13, 2021 to determine if unknown, metallic underground storage tanks (USTs) were present beneath the survey area. Two probable USTs were identified. Both probable USTs were approximately 8 feet long and 4 feet wide (approximately 750-gallons in capacity). Reconnaissance GPR also identified a suspected former product line extending from the two probable USTs to the former pump island. Evidence of additional buried structures such as USTs was not observed. Aboveground storage tanks were not observed on-site. Historic releases were not associated with this site. Falcon sampled soil around the two probable USTs, the suspect dispenser island, and in the vicinity of proposed excavations for drainage features on this parcel during the September 2021 PSA. Soils requiring remediation or special handling during construction were not identified at that time. However, some minor residual petroleum hydrocarbons below action levels were identified at the tank pit. UST CLOSURE REPORT NCDOT / W-5704S PARCEL NO. 01 / G23010.00 / MARCH 23, 2023 6 SECTION 3: CLOSURE PROCEDURE Prior to removing the USTs Falcon contacted CCI Environmental Services, Inc. (CCI) to subcontract the excavation, removal, and disposal of the UST and contents. CCI contacted NC One Call to request public utility locations be marked around the USTs. CCI obtained a UST removal Permit (No. 192852) from the Johnston County Inspections Department. Falcon and CCI arrived on site at approximately 9 am Monday February 27, 2023 to begin excavation. Clean overburden was removed from above the USTs and stockpiled for back fill. The USTs were approximately 1- foot below ground surface. After the clean overburden was removed, the USTs were vented by cutting a square hole in the top to allow gasses to escape. The USTs were observed to be filled with stormwater. Petroleum odors or a sheen on the water were not observed. Once the USTs were vented, the petroleum impacted water was removed with a vacuum truck. The USTs were then cleaned with a pressure washer to remove residual petroleum impacted water. The rinse water was also vacuumed out. In total, CCI hauled 1,387 gallons of non- hazardous petroleum impacted water to their disposal facility in Thomasville, North Carolina. CCI staff measured the lower explosive limit (LEL) inside both tanks (0.22, 0.28). The Johnston County Fire Marshal confirmed the LEL was within acceptable range to safely remove the USTs. The USTs were removed from the pit. The USTs appeared to be in fairly good condition with no obvious holes. Dispenser lines were also removed. Concrete, bedrock, free product, or groundwater was not observed in the UST pit. Monitoring wells were not required. The excavation pit was approximately 6 feet deep by 10 feet wide. The USTs were hauled off-site by CCI to D.H. Griffin in Highpoint, North Carolina for disposal. After samples were collected the clean overburden was used as back fill along with 18.88 tons of imported ABC stone to fill the void left by the USTs. The ABC stone was nominally impacted with the excavator bucket. Compaction testing /verification was not performed during backfilling. Subgrade preparation/stabilization for future construction will be the responsibility of the contractor. Disposal manifests for the water and USTs are attached. UST CLOSURE REPORT NCDOT / W-5704S PARCEL NO. 01 / G23010.00 / MARCH 23, 2023 7 SECTION 4: SITE INVESTIGATION 4.1 FIELD SCREENING After the USTs were removed from the ground, four selected soil samples (P1S1, P1S2, P1S3, and P1S4) were collected from beneath the midline of the USTs (two samples per UST). These four samples were bagged and scanned with a Minirae 3000 Photoionization Detector (PID) for petroleum hydrocarbons in an effort to determine if over excavation would be required. The instrument was calibrated per manufacturer instructions prior to use. Samples were placed in a sealed plastic bag for approximately 10 minutes to allow soil hydrocarbons to reach equilibrium within the headspace prior to scanning with the PID. The PID readings were below state action levels for GRO and DRO of 50 ppm and 100 ppm respectively. The results are listed below in parts per million (PPM).  P1S1 0.0  P1S2 0.0  P1S3 2.4  P1S4 15.0 4.2 SAMPLE COLLECTION After field screening, the four samples collected from beneath the former USTs were placed in laboratory containers for analysis of gasoline and diesel range organics (GRO/DRO). Risk-based samples were also collected to be analyzed if GRO or DRO laboratory analysis reported petroleum hydrocarbons above the action levels. Please see the Attached Sample Location sketch and Map for a visual depiction of the sample locations. 4.3 METHODS To avoid cross contamination, a new unused pair of non-powdered nitrile gloves was worn while extracting each sample. Samples were placed in the appropriate laboratory provided containers. The labels on each container were then completed so that each provided the date and time of sampling, method of analysis, sample collector, preservative used and sampling location identification. Samples were placed in an ice filled cooler and transported to the lab. Appropriate chain-of-custody procedures, including the completion of necessary forms, were followed. 4.4 ANALYTICAL RESULTS GRO and DRO was reported above their respective action limits of 50 and 100 mg/kg at 102 and 182 mg/kg. (milligrams per kilogram) respectively in Sample P1S4. GRO was identified at 4.44 mg/kg in sample P1S3. GRO was not reported above method detection limits in P1S1 or P1S2. DRO concentrations below the action level were detected in the remaining samples as follows: P1S1: 42.4, P1S2: 13.8 and P1S3: at 15.6 mg/kg. Sample P1S4 was selected for risk-based analysis using methods 8260, 8270, MADEP EPH, and MADEP UST CLOSURE REPORT NCDOT / W-5704S PARCEL NO. 01 / G23010.00 / MARCH 23, 2023 8 VPH. The additional analysis of P1S4 identified ten (10) constituents. Two aromatics (C11-C22 and C9-C10) were identified at 113 and 48.3 mg/kg which is above their soil to groundwater (SGW) maximum soil contamination concentrations (MSCCs) of 31 mg/kg for both but below their residential MSCCs. Six contaminants (acetone, n-Butylbenzene, Carbon Disulfide, 1,2,4-Trimethylbenzene, 1,3,5-Trimethylbenzene, and Aliphatic C19-C36) were “J” flagged indicating the result is an estimate. These constituents were below their corresponding SGW MSCCs (aliphatic C19-C36 has a health based level of greater than 100%). Aliphatics C9-C18 and C9-C12 were also identified above method detection limits but below their corresponding SGW MSCCs. Detailed sampling results can be found in table B-3 Summary of Soil Sampling Results in Appendix B Tables. UST CLOSURE REPORT NCDOT / W-5704S PARCEL NO. 01 / G23010.00 / MARCH 23, 2023 9 SECTION 5: CONCLUSIONS AND RECOMMENDATIONS This Underground Storage Tank (UST) Closure Report documents the closure by removal of two orphaned 4x8 foot (~750-gallon) USTs. The findings are as follows:  PID scans of the soils beneath the USTs did not indicate petroleum hydrocarbons above action levels.  Laboratory analysis of GRO and DRO identified GRO at 102 mg/kg and DRO at 182 mg/kg in Sample P1S4 which are above their respective action limits of 50 and 100 mg/kg.  Risk-based analysis of sample P1S4 did not identify constituents above Residential MSCCs.  Risk-based analysis identified two aromatics (C11-C22 and C9-C10) at 113 and 48.3 mg/kg which is above their soil to groundwater (SGW) maximum soil contamination concentrations (MSCCs) of 31 mg/kg for both but below the Residential MSCCs of 469 for both. Falcon recommends this report be submitted to the State UST section. UST CLOSURE REPORT NCDOT / W-5704S PARCEL NO. 01 / G23010.00 / MARCH 23, 2023 10 TABLE B-3: SUMMARY OF SOIL SAMPLING RESULTS (1 of 2) Revision Date: Incident Number and Name: Facility ID#: 00-0-0000047607 Analytical Method (e.g., VOC by EPA 8260) -> GRO DRO 8260D 8260D 8260D 8260D 8260D Contaminant of Concern -> Gasoline Range Organics Diesel Range Organics Acetone n-Butylbenzene Carbon Disulfide 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Sample ID Date Collected (mm/dd/yy) Source Area (e.g., Tank Pit) Sample Depth (ft BGS) Incident Phase (IAA, LSA, etc.) P1S1 02/27/23 Tank Pit 6 Closure < 42.4 - - - - - P1S2 02/27/23 Tank Pit 6 Closure < 13.8 - - - - - P1S3 02/27/23 Tank Pit 6 Closure 4.44J 15.6 - - - - - P1S4 02/27/23 Tank Pit 6 Closure 102 182 0.008J 0.001J 0.001J 0.003J 0.001J Minimum Reporting Limit (mg/kg) 2.60 5.53 0.003 0.0006 0.0008 0.0006 0.0007 Soil to Groundwater MSCC (mg/kg) - - 24 4.3 4.3 8.5 8.3 Residential MSCC (mg/kg) - - 14000 626 1564 782 782 Industrial/Commercial MSCC (mg/kg) - - 360000 16350 40880 20440 20440 Detection limits for contaminants not detected are indicated by a < symbol (e.g., < 1, 10, 42) MSCC = maximum soil contaminant concentration ft. BGS = feet below ground surface Results are reported in mg/kg. (milligrams per kilogram) J= estimated value Bold = concentration is above the Soil to Groundwater MSCC - Not analyzed UST CLOSURE REPORT NCDOT / W-5704S PARCEL NO. 01 / G23010.00 / MARCH 23, 2023 11 TABLE B-3: SUMMARY OF SOIL SAMPLING RESULTS (1 of 2) Revision Date: Incident Number and Name: Facility ID#: 00-0-0000047607 Analytical Method (e.g., VOC by EPA 8260) -> EPH EPH EPH VPH VPH Contaminant of Concern -> Aliphatic C9-C18 Aliphatic C19-C36 Aromatic C11-C22 Aliphatic C9-C12 Aromatic C9-C10 Sample ID Date Collected (mm/dd/yy) Source Area (e.g., Tank Pit) Sample Depth (ft BGS) Incident Phase (IAA, LSA, etc.) P1S1 02/27/23 Tank Pit 6 Closure - - - - - P1S2 02/27/23 Tank Pit 6 Closure - - - - - P1S3 02/27/23 Tank Pit 6 Closure - - - - - P1S4 02/27/23 Tank Pit 6 Closure 365 61.9J 113 163 48.3 Minimum Reporting Limit (mg/kg) 11.6 15.4 17.9 5.72 0.782 Soil to Groundwater MSCC (mg/kg) 540 # 31 540 31 Residential MSCC (mg/kg) 1500 31000 469 1500 469 Industrial/Commercial MSCC (mg/kg) 40000 810000 12264 40000 12264 Detection limits for contaminants not detected are indicated by a < symbol (e.g., < 1, 10, 42) MSCC = maximum soil contaminant concentration ft. BGS = feet below ground surface Results are reported in mg/kg. (milligrams per kilogram) J= estimated value Bold = concentration is above the Soil to Groundwater MSCC # Health based level > 100% - Not analyzed NC 42 AT NC 96 ROUNDABOUT UST CLOSURE TIP NO:W-5704S WBS:44850.1.19 SELMA, JOHNSTON COUNTY VICINITY MAP Project No.:G21044.00Date: March 2023Source:Google Maps SITE NC 42 AT NC 96 ROUNDABOUT UST CLOSURE TIP NO:W-5704S WBS:44850.1.19 USGS “FLOWERS, NC” 2019 TOPOGRAPHIC MAP Project No.:G21044.00Date: March 2023Source: USGS Topoview website https://ngmdb.usgs.gov/topoview/ SITE NC 42 AT NC 96 ROUNDABOUT UST CLOSURE TIP NO:W-5704S WBS:44850.1.19 2018 AERIAL PHOTOGRAPH Project No.:G21044.00Date: March 2023Source:Google Earth NC 42 AT NC 96 ROUNDABOUT UST CLOSURE TIP NO:W-5704S WBS:44850.1.19 Parcel Information Project No.:G21044.00Date: March 2023Source:Johnston County GIS Websitehttps://mapclick6.johnstonnc.com/mapclick/MapClick4/ UST Location NC 42 AT NC 96 ROUNDABOUT UST CLOSURE TIP NO:W-5704S WBS:44850.1.19 UST Sample Location sketch Project No.:G21044.00Date: March 2023Source:Johnston County GIS Websitehttps://mapclick6.johnstonnc.com/mapclick/MapClick4/ NC 42 NC 96Not to Scale P1S1 P1S2 P1S3 P1S4 BL-103 S S GUY GUY GUY S GUY GUY GUYGUY GUY GUY GUYGUY GUY GUYSS S S SSSSSSS18" RCPINV=218.04' INV=217.47'SHRINE FOM PT N 09°06'31" E210.00'N 88°37'47" E 179.68' WOODS WOODS WOODS WOODS DB 4576 PG 279MARY E MOORE WORLEY RAYMOND E EARP JR FAMILY TRUST TO R/WEPK .63' TO R/WECM .37' ECM CONC CONC BST BST 4'WWF TC HH C THHWCMWCM15 15-L- PC Sta. 13+58.97 -L- PRC Sta. 14+07.58 -L- PCC Sta. 17+09.81 -L- PRC Sta. 16+56.08 -Y- PT Sta. 17+22.38 -Y- PRC Sta. 16+62.39 -L- PRC Sta. 15+28.77 -RAB- PT Sta. 14+71.23-RAB- PC Sta. 10+00.00 =-L- POC Sta. 16+09.60 = -RAB- POC Sta. 10+94.63-Y- POC Sta. 16+15.94 = -RAB- POC Sta. 12+37.58-L- POC Sta. 14+59.04 = R = 253.00'T = 62.22'L = 122.02'DPI Sta 14+76.15-Y- CURVE DATA 006 0 0 0 0100200260240200 1 0 0 0 0 005 000 025 025 025025025025020 020020020010 010010010 006 029029 1 65'+00 -L- 60'+25 -L- 45'+50 -Y- EX. R/W+67.65 -L- 38'+25 -L- 45'+75 -L- 80'+50 -Y-EX. R/W+50 -Y- EX. R/W+65.16 -L- 60'+00 -L-70'+75 -Y- 45'+25 -Y- 65'+75 -Y- 75'+50 -Y- 45'+00 -Y- EX. R/W+75 -Y- 50'+50 -Y- 55'+50 -Y- 45'+50 -L- P1S4 P1S3 P1S2 P1S1 NAD 83/ NSRS 2007NOTES: 0 FEET SAMPLES WERE COLLECTED FROM 6 FEET BGS. 50 100 FALCON PROJECT NO. G23010.00 WBS: 44850.1.19 | TIP: W-5704S JOHNSTON COUNTY, NC NC42 AT NC96 ROUNDABOUT SAMPLE LOCATION PLAN CARY, NC 27513 1210 TRINITY ROAD, SUITE 110 FALCON ENGINEERING, INC. www.falconengineers.com PHONE: 919.871.0800 F F F F C C C C C C C C C C C Photograph No. 1: General view of the UST Pit and dispenser island. Photograph No. 2: General view of the two removed USTs. NC 42 AT NC 96 ROUNDABOUT UST CLOSURE TIP NO:W-5704S WBS:44850.1.19 Site Photographs Photograph No. 3: General view of the removed dispenser Island and product lines. Photograph No. 4: General view of the pit and dispenser Island after back filling. NC 42 AT NC 96 ROUNDABOUT UST CLOSURE TIP NO:W-5704S WBS:44850.1.19 Site Photographs Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis. 3/15/2023 Falcon Engineering Christopher Burkhardt 1210 Trinity Road Suite 110 Cary, NC, 27513 Ref: Analytical Testing Lab Report Number: 23-059-0009 Client Project Description: W57045 Dear Christopher Burkhardt: Waypoint Analytical, LLC (Charlotte) received sample(s) on 2/28/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as- received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 43 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Page 1 of 1 00016/23-059-0009 Page 2 of 43 Report Number: Sample Summary Table Client Project Description: 23-059-0009 W57045 Lab No Client Sample ID Matrix Date Collected Date Received 02/27/2023 12:00Solids 89929 P1S1 02/28/2023 12:00 02/27/2023 12:08Solids 89930 P1S2 02/28/2023 12:00 02/27/2023 12:23Solids 89931 P1S3 02/28/2023 12:00 02/27/2023 12:38Solids 89932 P1S4 02/28/2023 12:00 Page 3 of 43 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-059-0009 Report Limit Project:W57045 V 89929P1S1 42.4 03/07/2023 11:008015C DRO Diesel Range Organics (C10-C28)mg/Kg - dry 5.71 18.6 03/02/2023 17:42SW-DRYWT Moisture % V 89930P1S2 13.8 03/07/2023 11:228015C DRO Diesel Range Organics (C10-C28)mg/Kg - dry 5.53 15.9 03/02/2023 17:42SW-DRYWT Moisture % V 89931P1S3 15.6 03/07/2023 11:438015C DRO Diesel Range Organics (C10-C28)mg/Kg - dry 5.96 J4.44 03/01/2023 15:568015C GRO Gasoline Range Organics (C6-C10)mg/Kg - dry 2.65 22.0 03/02/2023 17:42SW-DRYWT Moisture % V 89932P1S4 182 03/07/2023 12:048015C DRO Diesel Range Organics (C10-C28)mg/Kg - dry 5.83 102 03/01/2023 16:248015C GRO Gasoline Range Organics (C6-C10)mg/Kg - dry 2.60 J0.008 03/08/2023 12:468260DAcetonemg/Kg - dry 0.003 J0.001 03/08/2023 12:468260Dn-Butylbenzene mg/Kg - dry 0.0006 J0.001 03/08/2023 12:468260DCarbon Disulfide mg/Kg - dry 0.0008 J0.003 03/08/2023 12:468260D1,2,4-Trimethylbenzene mg/Kg - dry 0.0006 J0.001 03/08/2023 12:468260D1,3,5-Trimethylbenzene mg/Kg - dry 0.0007 202 03/13/2023 16:09MADEP-EPH Aliphatic C9-C18 mg/Kg - dry 11.6 J61.9 03/13/2023 16:09MADEP-EPH Aliphatic C19-C36 mg/Kg - dry 15.4 113 03/13/2023 16:09MADEP-EPH Aromatic C11-C22 mg/Kg - dry 17.9 163 03/08/2023 14:51MADEP-VPH Aliphatic C9-C12 mg/Kg - dry 5.72 48.3 03/08/2023 14:51MADEP-VPH Aromatic C9-C10 mg/Kg - dry 0.782 20.3 03/02/2023 17:42SW-DRYWT Moisture % Page 4 of 43 Client: Falcon Engineering CASE NARRATIVE Project: W57045 Lab Report Number: 23-059-0009 Date: 3/15/2023 Semivolatile Organic Compounds - GC/MS Method 8270E Analyte: Aniline QC Batch No: V30753/V30730 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Sample 89932 (P1S4) Analyte: Bis(2-chloroethyl)ether QC Batch No: V30753/V30730 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Page 5 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S1 89929 Matrix: 2/27/2023 12:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 18.6 %Moisture 1 03/02/23 17:42 SW-DRYWTAMB Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 6 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S1 89929 Matrix: 2/27/2023 12:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8015C DRO Prep Batch(es):V30498 03/06/23 10:30 42.4 mg/Kg - dry 5.71 12.3Diesel Range Organics (C10-C28)1 03/07/23 11:00 V30521AMP 8015C DROSurrogate: OTP Surrogate 88.7 Limits: 31-123%03/07/23 11:001 AMP Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V30320 03/01/23 08:00 <2.54 mg/Kg - dry 2.54 6.14Gasoline Range Organics (C6-C10)50 03/01/23 14:59 V30321TBL 8015C GROSurrogate: a,a,a-Trifluorotoluene 110 Limits: 50-137%03/01/23 14:5950 TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 7 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S2 89930 Matrix: 2/27/2023 12:08 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 15.9 %Moisture 1 03/02/23 17:42 SW-DRYWTAMB Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 8 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S2 89930 Matrix: 2/27/2023 12:08 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8015C DRO Prep Batch(es):V30498 03/06/23 10:30 13.8 mg/Kg - dry 5.53 11.9Diesel Range Organics (C10-C28)1 03/07/23 11:22 V30521AMP 8015C DROSurrogate: OTP Surrogate 91.0 Limits: 31-123%03/07/23 11:221 AMP Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V30320 03/01/23 08:00 <2.46 mg/Kg - dry 2.46 5.95Gasoline Range Organics (C6-C10)50 03/01/23 15:28 V30321TBL 8015C GROSurrogate: a,a,a-Trifluorotoluene 111 Limits: 50-137%03/01/23 15:2850 TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 9 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S3 89931 Matrix: 2/27/2023 12:23 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 22.0 %Moisture 1 03/02/23 17:42 SW-DRYWTAMB Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 10 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S3 89931 Matrix: 2/27/2023 12:23 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8015C DRO Prep Batch(es):V30498 03/06/23 10:30 15.6 mg/Kg - dry 5.96 12.8Diesel Range Organics (C10-C28)1 03/07/23 11:43 V30521AMP 8015C DROSurrogate: OTP Surrogate 86.5 Limits: 31-123%03/07/23 11:431 AMP Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V30320 03/01/23 08:00 4.44 J mg/Kg - dry 2.65 6.41Gasoline Range Organics (C6-C10)50 03/01/23 15:56 V30321TBL 8015C GROSurrogate: a,a,a-Trifluorotoluene 78.2 Limits: 50-137%03/01/23 15:5650 TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 11 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S4 89932 Matrix: 2/27/2023 12:38 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 20.3 %Moisture 1 03/02/23 17:42 SW-DRYWTAMB Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 12 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S4 89932 Matrix: 2/27/2023 12:38 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8015C DRO Prep Batch(es):V30498 03/06/23 10:30 182 mg/Kg - dry 5.83 12.5Diesel Range Organics (C10-C28)1 03/07/23 12:04 V30521AMP 8015C DROSurrogate: OTP Surrogate 98.5 Limits: 31-123%03/07/23 12:041 AMP Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V30320 03/01/23 08:00 102 mg/Kg - dry 2.60 6.27Gasoline Range Organics (C6-C10)50 03/01/23 16:24 V30321TBL 8015C GROSurrogate: a,a,a-Trifluorotoluene 108 Limits: 50-137%03/01/23 16:2450 TBL Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V30593 03/08/23 08:00 0.008 J mg/Kg - dry 0.003 0.025 Acetone 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.025Acrolein 1 03/08/23 12:46 V30594TBL <0.0009 mg/Kg - dry 0.0009 0.025Acrylonitrile 1 03/08/23 12:46 V30594TBL <0.0007 mg/Kg - dry 0.0007 0.006Benzene 1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.006Bromobenzene 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006Bromochloromethane 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006Bromodichloromethane 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006Bromoform 1 03/08/23 12:46 V30594TBL <0.002 mg/Kg - dry 0.002 0.012Bromomethane 1 03/08/23 12:46 V30594TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 13 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S4 89932 Matrix: 2/27/2023 12:38 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V30593 03/08/23 08:00 0.001 J mg/Kg - dry 0.0006 0.006n-Butylbenzene 1 03/08/23 12:46 V30594TBL <0.0007 mg/Kg - dry 0.0007 0.006 sec-Butyl benzene 1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.006tert-Butyl benzene 1 03/08/23 12:46 V30594TBL 0.001 J mg/Kg - dry 0.0008 0.006Carbon Disulfide 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006Carbon Tetrachloride 1 03/08/23 12:46 V30594TBL <0.0008 mg/Kg - dry 0.0008 0.006Chlorobenzene 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006Chlorodibromomethane 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.012Chloroethane 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006 Chloroform 1 03/08/23 12:46 V30594TBL <0.0008 mg/Kg - dry 0.0008 0.012Chloromethane 1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.0062-Chlorotoluene 1 03/08/23 12:46 V30594TBL <0.0005 mg/Kg - dry 0.0005 0.0064-Chlorotoluene 1 03/08/23 12:46 V30594TBL <0.0009 mg/Kg - dry 0.0009 0.006Di-Isopropyl Ether (DIPE)1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.0121,2-Dibromo-3-Chloropropane 1 03/08/23 12:46 V30594TBL <0.0007 mg/Kg - dry 0.0007 0.0061,2-Dibromoethane 1 03/08/23 12:46 V30594TBL <0.0007 mg/Kg - dry 0.0007 0.006Dibromomethane 1 03/08/23 12:46 V30594TBL <0.0004 mg/Kg - dry 0.0004 0.0061,2-Dichlorobenzene 1 03/08/23 12:46 V30594TBL <0.0005 mg/Kg - dry 0.0005 0.0061,3-Dichlorobenzene 1 03/08/23 12:46 V30594TBL <0.0008 mg/Kg - dry 0.0008 0.0061,4-Dichlorobenzene 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.012Dichlorodifluoromethane 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.0061,1-Dichloroethane 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.0061,2-Dichloroethane 1 03/08/23 12:46 V30594TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 14 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S4 89932 Matrix: 2/27/2023 12:38 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V30593 03/08/23 08:00 <0.0009 mg/Kg - dry 0.0009 0.0061,1-Dichloroethene 1 03/08/23 12:46 V30594TBL <0.0010 mg/Kg - dry 0.0010 0.006 cis-1,2-Dichloroethene 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006trans-1,2-Dichloroethene 1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.0061,2-Dichloropropane 1 03/08/23 12:46 V30594TBL <0.0007 mg/Kg - dry 0.0007 0.0061,3-Dichloropropane 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.0062,2-Dichloropropane 1 03/08/23 12:46 V30594TBL <0.0010 mg/Kg - dry 0.0010 0.0061,1-Dichloropropene 1 03/08/23 12:46 V30594TBL <0.0007 mg/Kg - dry 0.0007 0.006cis-1,3-Dichloropropene 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006 trans-1,3-Dichloropropene 1 03/08/23 12:46 V30594TBL <0.0007 mg/Kg - dry 0.0007 0.006Ethylbenzene 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.062Ethyl Tertiary Butyl Ether (ETBE)1 03/08/23 12:46 V30594TBL <0.0010 mg/Kg - dry 0.0010 0.012Hexachlorobutadiene 1 03/08/23 12:46 V30594TBL <0.0008 mg/Kg - dry 0.0008 0.012n-Hexane 1 03/08/23 12:46 V30594TBL <0.0008 mg/Kg - dry 0.0008 0.0252-Hexanone 1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.006Isopropylbenzene 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.0064-Isopropyl toluene 1 03/08/23 12:46 V30594TBL <0.0008 mg/Kg - dry 0.0008 0.025Methyl Ethyl Ketone (MEK)1 03/08/23 12:46 V30594TBL <0.0008 mg/Kg - dry 0.0008 0.006Methyl tert-butyl ether (MTBE)1 03/08/23 12:46 V30594TBL <0.018 mg/Kg - dry 0.018 0.0254-Methyl-2-Pentanone 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.012Methylene Chloride 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.012Naphthalene 1 03/08/23 12:46 V30594TBL <0.0007 mg/Kg - dry 0.0007 0.006n-Propylbenzene 1 03/08/23 12:46 V30594TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 15 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S4 89932 Matrix: 2/27/2023 12:38 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V30593 03/08/23 08:00 <0.001 mg/Kg - dry 0.001 0.006Styrene 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006 1,1,1,2-Tetrachloroethane 1 03/08/23 12:46 V30594TBL <0.0004 mg/Kg - dry 0.0004 0.0061,1,2,2-Tetrachloroethane 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006Tetrachloroethene 1 03/08/23 12:46 V30594TBL <0.0008 mg/Kg - dry 0.0008 0.006Toluene 1 03/08/23 12:46 V30594TBL <0.0007 mg/Kg - dry 0.0007 0.0121,2,3-Trichlorobenzene 1 03/08/23 12:46 V30594TBL <0.0008 mg/Kg - dry 0.0008 0.0121,2,4-Trichlorobenzene 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.0061,1,1-Trichloroethane 1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.006 1,1,2-Trichloroethane 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.006Trichloroethene 1 03/08/23 12:46 V30594TBL <0.002 mg/Kg - dry 0.002 0.012Trichlorofluoromethane 1 03/08/23 12:46 V30594TBL <0.0009 mg/Kg - dry 0.0009 0.0061,2,3-Trichloropropane 1 03/08/23 12:46 V30594TBL 0.003 J mg/Kg - dry 0.0006 0.0061,2,4-Trimethylbenzene 1 03/08/23 12:46 V30594TBL 0.001 J mg/Kg - dry 0.0007 0.0061,3,5-Trimethylbenzene 1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.012Vinyl Acetate 1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.012Vinyl Chloride 1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.006o-Xylene 1 03/08/23 12:46 V30594TBL <0.001 mg/Kg - dry 0.001 0.012m,p-Xylene 1 03/08/23 12:46 V30594TBL <0.0006 mg/Kg - dry 0.0006 0.006Xylene (Total)1 03/08/23 12:46 V30594 Surrogate: 4-Bromofluorobenzene 89.5 Limits: 70-130%03/08/23 12:461 TBL V30594 Surrogate: Dibromofluoromethane 105 Limits: 84-123%03/08/23 12:461 TBL V30594 Surrogate: Toluene-d8 103 Limits: 76-129%03/08/23 12:461 TBL V30594 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 16 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S4 89932 Matrix: 2/27/2023 12:38 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V30730 03/13/23 10:00 <0.145 mg/Kg - dry 0.145 0.828Acenaphthene 1 03/14/23 10:53 V30753JMV <0.131 mg/Kg - dry 0.131 0.828 Acenaphthylene 1 03/14/23 10:53 V30753JMV <0.190 mg/Kg - dry 0.190 0.828Aniline 1 03/14/23 10:53 V30753JMV <0.179 mg/Kg - dry 0.179 0.828Anthracene 1 03/14/23 10:53 V30753JMV <0.174 mg/Kg - dry 0.174 0.828Benzo(a)anthracene 1 03/14/23 10:53 V30753JMV <0.184 mg/Kg - dry 0.184 0.828Benzo(a)pyrene 1 03/14/23 10:53 V30753JMV <0.183 mg/Kg - dry 0.183 0.828Benzo(b)fluoranthene 1 03/14/23 10:53 V30753JMV <0.170 mg/Kg - dry 0.170 0.828Benzo(g,h,i)perylene 1 03/14/23 10:53 V30753JMV <0.171 mg/Kg - dry 0.171 0.828 Benzo(k)fluoranthene 1 03/14/23 10:53 V30753JMV <0.727 mg/Kg - dry 0.727 2.51Benzoic Acid 1 03/14/23 10:53 V30753JMV <0.131 mg/Kg - dry 0.131 0.828Benzyl alcohol 1 03/14/23 10:53 V30753JMV <0.148 mg/Kg - dry 0.148 0.828Bis(2-Chloroethoxy)methane 1 03/14/23 10:53 V30753JMV <0.134 mg/Kg - dry 0.134 0.828Bis(2-Chloroethyl)ether 1 03/14/23 10:53 V30753JMV <0.170 mg/Kg - dry 0.170 0.414Bis(2-Chloroisopropyl)ether 1 03/14/23 10:53 V30753JMV <0.150 mg/Kg - dry 0.150 0.828Bis(2-ethylhexyl)phthalate 1 03/14/23 10:53 V30753JMV <0.136 mg/Kg - dry 0.136 0.8284-Bromophenyl phenyl ether 1 03/14/23 10:53 V30753JMV <0.141 mg/Kg - dry 0.141 0.414Butyl benzyl phthalate 1 03/14/23 10:53 V30753JMV <0.115 mg/Kg - dry 0.115 0.8284-Chloro-3-methylphenol 1 03/14/23 10:53 V30753JMV <0.140 mg/Kg - dry 0.140 0.4144-Chloroaniline 1 03/14/23 10:53 V30753JMV <0.145 mg/Kg - dry 0.145 0.8282-Chloronaphthalene 1 03/14/23 10:53 V30753JMV <0.123 mg/Kg - dry 0.123 0.8282-Chlorophenol 1 03/14/23 10:53 V30753JMV <0.158 mg/Kg - dry 0.158 1.254-Chlorophenyl phenyl ether 1 03/14/23 10:53 V30753JMV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 17 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S4 89932 Matrix: 2/27/2023 12:38 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V30730 03/13/23 10:00 <0.178 mg/Kg - dry 0.178 0.828Chrysene 1 03/14/23 10:53 V30753JMV <0.288 mg/Kg - dry 0.288 0.828 Dibenz(a,h)anthracene 1 03/14/23 10:53 V30753JMV <0.149 mg/Kg - dry 0.149 0.828Dibenzofuran 1 03/14/23 10:53 V30753JMV <0.118 mg/Kg - dry 0.118 0.8281,2-Dichlorobenzene 1 03/14/23 10:53 V30753JMV <0.122 mg/Kg - dry 0.122 0.8281,3-Dichlorobenzene 1 03/14/23 10:53 V30753JMV <0.122 mg/Kg - dry 0.122 0.4141,4-Dichlorobenzene 1 03/14/23 10:53 V30753JMV <0.184 mg/Kg - dry 0.184 0.8283,3'-Dichlorobenzidine 1 03/14/23 10:53 V30753JMV <0.120 mg/Kg - dry 0.120 0.8282,4-Dichlorophenol 1 03/14/23 10:53 V30753JMV <0.225 mg/Kg - dry 0.225 0.828 Diethyl phthalate 1 03/14/23 10:53 V30753JMV <0.218 mg/Kg - dry 0.218 0.828Dimethyl phthalate 1 03/14/23 10:53 V30753JMV <0.135 mg/Kg - dry 0.135 0.4142,4-Dimethylphenol 1 03/14/23 10:53 V30753JMV <0.134 mg/Kg - dry 0.134 0.828Di-n-butyl phthalate 1 03/14/23 10:53 V30753JMV <0.301 mg/Kg - dry 0.301 1.884,6-Dinitro-2-methylphenol 1 03/14/23 10:53 V30753JMV <0.652 mg/Kg - dry 0.652 1.882,4-Dinitrophenol 1 03/14/23 10:53 V30753JMV <0.121 mg/Kg - dry 0.121 0.8282,4-Dinitrotoluene 1 03/14/23 10:53 V30753JMV <0.135 mg/Kg - dry 0.135 0.8282,6-Dinitrotoluene 1 03/14/23 10:53 V30753JMV <0.179 mg/Kg - dry 0.179 0.414Di-n-Octyl Phthalate 1 03/14/23 10:53 V30753JMV <0.154 mg/Kg - dry 0.154 0.828Fluoranthene 1 03/14/23 10:53 V30753JMV <0.160 mg/Kg - dry 0.160 0.828Fluorene 1 03/14/23 10:53 V30753JMV <0.132 mg/Kg - dry 0.132 0.828Hexachlorobenzene 1 03/14/23 10:53 V30753JMV <0.122 mg/Kg - dry 0.122 0.828Hexachlorobutadiene 1 03/14/23 10:53 V30753JMV <0.196 mg/Kg - dry 0.196 0.828Hexachlorocyclopentadiene 1 03/14/23 10:53 V30753JMV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 18 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S4 89932 Matrix: 2/27/2023 12:38 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V30730 03/13/23 10:00 <0.099 mg/Kg - dry 0.099 0.828Hexachloroethane 1 03/14/23 10:53 V30753JMV <0.224 mg/Kg - dry 0.224 0.828 Indeno(1,2,3-cd)pyrene 1 03/14/23 10:53 V30753JMV <0.239 mg/Kg - dry 0.239 0.828Isophorone 1 03/14/23 10:53 V30753JMV <0.132 mg/Kg - dry 0.132 0.8281-Methylnaphthalene 1 03/14/23 10:53 V30753JMV <0.125 mg/Kg - dry 0.125 0.8282-Methylnaphthalene 1 03/14/23 10:53 V30753JMV <0.121 mg/Kg - dry 0.121 0.8282-Methylphenol 1 03/14/23 10:53 V30753JMV <0.106 mg/Kg - dry 0.106 0.8283&4 Methylphenol 1 03/14/23 10:53 V30753JMV <0.180 mg/Kg - dry 0.180 0.828Naphthalene 1 03/14/23 10:53 V30753JMV <0.121 mg/Kg - dry 0.121 0.828 2-Nitroaniline 1 03/14/23 10:53 V30753JMV <0.150 mg/Kg - dry 0.150 0.8283-Nitroaniline 1 03/14/23 10:53 V30753JMV <0.117 mg/Kg - dry 0.117 0.4144-Nitroaniline 1 03/14/23 10:53 V30753JMV <0.145 mg/Kg - dry 0.145 0.414Nitrobenzene 1 03/14/23 10:53 V30753JMV <0.111 mg/Kg - dry 0.111 0.8282-Nitrophenol 1 03/14/23 10:53 V30753JMV <0.146 mg/Kg - dry 0.146 0.8284-Nitrophenol 1 03/14/23 10:53 V30753JMV <0.329 mg/Kg - dry 0.329 0.828N-Nitrosodimethylamine 1 03/14/23 10:53 V30753JMV <0.227 mg/Kg - dry 0.227 0.828N-Nitrosodiphenylamine 1 03/14/23 10:53 V30753JMV <0.148 mg/Kg - dry 0.148 0.828N-Nitroso-di-n-propylamine 1 03/14/23 10:53 V30753JMV <0.435 mg/Kg - dry 0.435 1.25Pentachlorophenol 1 03/14/23 10:53 V30753JMV <0.260 mg/Kg - dry 0.260 0.828Phenanthrene 1 03/14/23 10:53 V30753JMV <0.140 mg/Kg - dry 0.140 0.828Phenol 1 03/14/23 10:53 V30753JMV <0.168 mg/Kg - dry 0.168 0.828Pyrene 1 03/14/23 10:53 V30753JMV <0.099 mg/Kg - dry 0.099 0.414Pyridine 1 03/14/23 10:53 V30753JMV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 19 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S4 89932 Matrix: 2/27/2023 12:38 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V30730 03/13/23 10:00 <0.134 mg/Kg - dry 0.134 0.8281,2,4-Trichlorobenzene 1 03/14/23 10:53 V30753JMV <0.120 mg/Kg - dry 0.120 0.828 2,4,5-Trichlorophenol 1 03/14/23 10:53 V30753JMV <0.121 mg/Kg - dry 0.121 0.8282,4,6-Trichlorophenol 1 03/14/23 10:53 V30753JMV 8270ESurrogate: Phenol-d5 78.7 Limits: 34-121%03/14/23 10:531 JMV Surrogate: 2-Fluorobiphenyl 84.4 Limits: 44-115%03/14/23 10:531 JMV V30753 Surrogate: 2-Fluorophenol 82.9 Limits: 35-115%03/14/23 10:531 JMV V30753 Surrogate: Nitrobenzene-d5 75.4 Limits: 37-122%03/14/23 10:531 JMV V30753 Surrogate: 4-Terphenyl-d14 89.8 Limits: 54-127%03/14/23 10:531 JMV V30753 Surrogate: 2,4,6-Tribromophenol 80.5 Limits: 39-132%03/14/23 10:531 JMV V30753 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 20 of 43 , REPORT OF ANALYSISReport Number : Project Information : NC 27513 23-059-0009 00122 Suite 110 Falcon Engineering 1210 Trinity Road Christopher Burkhardt Cary Received : 02/28/2023 W57045 Report Date : 03/15/2023 Sample ID : Lab No : Sampled:P1S4 89932 Matrix: 2/27/2023 12:38 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAEPH (Prep) MADEP-EPH Prep Batch(es):V30678 03/10/23 10:30 202 mg/Kg - dry 11.6 63.1Aliphatic C9-C18 1 03/13/23 16:09 V30725AMP 61.9 J mg/Kg - dry 15.4 63.1 Aliphatic C19-C36 1 03/13/23 16:09 V30725AMP 113 mg/Kg - dry 17.9 63.1Aromatic C11-C22 1 03/13/23 16:09 V30725AMP MADEP-EPHSurrogate: 2-Bromonaphthalene 87.8 Limits: 40-140%03/13/23 16:091 AMP MADEP-EPHSurrogate: Chlorooctadecane 72.5 Limits: 40-140%03/13/23 16:091 AMP MADEP-EPHSurrogate: OTP Surrogate 76.1 Limits: 40-140%03/13/23 16:091 AMP Surrogate: 2-Fluorobiphenyl 96.5 Limits: 40-140%03/13/23 16:091 AMP V30725 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V30604 03/08/23 08:00 <1.53 mg/Kg - dry 1.53 10.0 Aliphatic C5-C8 100 03/08/23 14:51 V30605TBL 163 mg/Kg - dry 5.72 10.0Aliphatic C9-C12 100 03/08/23 14:51 V30605TBL 48.3 mg/Kg - dry 0.782 10.0Aromatic C9-C10 100 03/08/23 14:51 V30605TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)93.8 Limits: 70-130%03/08/23 14:51100 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)77.7 Limits: 70-130%03/08/23 14:51100 TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 21 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Total Petroleum Hydrocarbons - Extractable 8015C DRO V30521QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V30498 Associated Lab Samples: 89929, 89930, 89931, 89932 LRB-V30498 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/07/23 09:5710.04.65<4.65mg/KgDiesel Range Organics (C10-C28) 03/07/23 09:57OTP Surrogate (S)106 31-123 LCS-V30498 LCSD-V30498Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 75.9 11410771.766.7mg/KgDiesel Range Organics (C10-C28)46-126 5.6 20 114108OTP Surrogate (S)31-123 Page 1 of 20Date:03/15/2023 03:46 PM Page 22 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Total Petroleum Hydrocarbons - Volatile 8015C GRO V30321QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 MED QC Prep:V30320 Associated Lab Samples: 89929, 89930, 89931, 89932 LRB-V30320 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/01/23 14:035.002.07<2.07mg/KgGasoline Range Organics (C6-C10) 03/01/23 14:03a,a,a-Trifluorotoluene (S)93.4 50-137 LCS-V30320Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10854.050.0mg/KgGasoline Range Organics (C6-C10)41-138 109a,a,a-Trifluorotoluene (S)50-137 V 89929-MS-V30320 V 89929-MSD-V30320Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 50.4 10147.850.050.0<2.07mg/KgGasoline Range Organics (C6-C10)95.6 41-138 5.2 34 125a,a,a-Trifluorotoluene (S)104 50-137 Page 2 of 20Date:03/15/2023 03:46 PM Page 23 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V30594QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V30593 Associated Lab Samples: 89932 LRB-V30593 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/08/23 11:400.0200.002<0.002mg/KgAcetone 03/08/23 11:400.0200.001<0.001mg/KgAcrolein 03/08/23 11:400.0200.0008<0.0008mg/KgAcrylonitrile 03/08/23 11:400.0050.0006<0.0006mg/KgBenzene 03/08/23 11:400.0050.0005<0.0005mg/KgBromobenzene 03/08/23 11:400.0050.0008<0.0008mg/KgBromochloromethane 03/08/23 11:400.0050.001<0.001mg/KgBromodichloromethane 03/08/23 11:400.0050.001<0.001mg/KgBromoform 03/08/23 11:400.0100.001<0.001mg/KgBromomethane 03/08/23 11:400.0050.0005<0.0005mg/Kgn-Butylbenzene 03/08/23 11:400.0050.0006<0.0006mg/Kgsec-Butyl benzene 03/08/23 11:400.0050.0005<0.0005mg/Kgtert-Butyl benzene 03/08/23 11:400.0050.0006<0.0006mg/KgCarbon Disulfide 03/08/23 11:400.0050.001<0.001mg/KgCarbon Tetrachloride 03/08/23 11:400.0050.0007<0.0007mg/KgChlorobenzene 03/08/23 11:400.0050.0009<0.0009mg/KgChlorodibromomethane 03/08/23 11:400.0100.0009<0.0009mg/KgChloroethane 03/08/23 11:400.0050.001<0.001mg/KgChloroform 03/08/23 11:400.0100.0006<0.0006mg/KgChloromethane 03/08/23 11:400.0050.0005<0.0005mg/Kg2-Chlorotoluene 03/08/23 11:400.0050.0004<0.0004mg/Kg4-Chlorotoluene 03/08/23 11:400.0050.0007<0.0007mg/KgDi-Isopropyl Ether (DIPE) 03/08/23 11:400.0100.0004<0.0004mg/Kg1,2-Dibromo-3-Chloropropane 03/08/23 11:400.0050.0006<0.0006mg/Kg1,2-Dibromoethane 03/08/23 11:400.0050.0006<0.0006mg/KgDibromomethane 03/08/23 11:400.0050.0003<0.0003mg/Kg1,2-Dichlorobenzene 03/08/23 11:400.0050.0004<0.0004mg/Kg1,3-Dichlorobenzene Page 3 of 20Date:03/15/2023 03:46 PM Page 24 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V30594QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V30593 Associated Lab Samples: 89932 LRB-V30593 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/08/23 11:400.0050.0006<0.0006mg/Kg1,4-Dichlorobenzene 03/08/23 11:400.0100.001<0.001mg/KgDichlorodifluoromethane 03/08/23 11:400.0050.0008<0.0008mg/Kg1,1-Dichloroethane 03/08/23 11:400.0050.001<0.001mg/Kg1,2-Dichloroethane 03/08/23 11:400.0050.0007<0.0007mg/Kg1,1-Dichloroethene 03/08/23 11:400.0050.0008<0.0008mg/Kgcis-1,2-Dichloroethene 03/08/23 11:400.0050.001<0.001mg/Kgtrans-1,2-Dichloroethene 03/08/23 11:400.0050.0004<0.0004mg/Kg1,2-Dichloropropane 03/08/23 11:400.0050.0006<0.0006mg/Kg1,3-Dichloropropane 03/08/23 11:400.0050.001<0.001mg/Kg2,2-Dichloropropane 03/08/23 11:400.0050.0008<0.0008mg/Kg1,1-Dichloropropene 03/08/23 11:400.0050.0005<0.0005mg/Kgcis-1,3-Dichloropropene 03/08/23 11:400.0050.0008<0.0008mg/Kgtrans-1,3-Dichloropropene 03/08/23 11:400.0050.0006<0.0006mg/KgEthylbenzene 03/08/23 11:400.0500.0008<0.0008mg/KgEthyl Tertiary Butyl Ether (ETBE) 03/08/23 11:400.0100.0008<0.0008mg/KgHexachlorobutadiene 03/08/23 11:400.0100.0007<0.0007mg/Kgn-Hexane 03/08/23 11:400.0200.0006<0.0006mg/Kg2-Hexanone 03/08/23 11:400.0050.0005<0.0005mg/KgIsopropylbenzene 03/08/23 11:400.0050.001<0.001mg/Kg4-Isopropyl toluene 03/08/23 11:400.0200.0007<0.0007mg/KgMethyl Ethyl Ketone (MEK) 03/08/23 11:400.0050.0006<0.0006mg/KgMethyl tert-butyl ether (MTBE) 03/08/23 11:400.0200.015<0.015mg/Kg4-Methyl-2-Pentanone 03/08/23 11:400.0100.001<0.001mg/KgMethylene Chloride 03/08/23 11:400.0100.0010<0.0010mg/KgNaphthalene 03/08/23 11:400.0050.0005<0.0005mg/Kgn-Propylbenzene 03/08/23 11:400.0050.001<0.001mg/KgStyrene Page 4 of 20Date:03/15/2023 03:46 PM Page 25 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V30594QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V30593 Associated Lab Samples: 89932 LRB-V30593 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/08/23 11:400.0050.001<0.001mg/Kg1,1,1,2-Tetrachloroethane 03/08/23 11:400.0050.0003<0.0003mg/Kg1,1,2,2-Tetrachloroethane 03/08/23 11:400.0050.0009<0.0009mg/KgTetrachloroethene 03/08/23 11:400.0050.0007<0.0007mg/KgToluene 03/08/23 11:400.0100.0005<0.0005mg/Kg1,2,3-Trichlorobenzene 03/08/23 11:400.0100.0006<0.0006mg/Kg1,2,4-Trichlorobenzene 03/08/23 11:400.0050.001<0.001mg/Kg1,1,1-Trichloroethane 03/08/23 11:400.0050.0005<0.0005mg/Kg1,1,2-Trichloroethane 03/08/23 11:400.0050.0009<0.0009mg/KgTrichloroethene 03/08/23 11:400.0100.002<0.002mg/KgTrichlorofluoromethane 03/08/23 11:400.0050.0007<0.0007mg/Kg1,2,3-Trichloropropane 03/08/23 11:400.0050.0005<0.0005mg/Kg1,2,4-Trimethylbenzene 03/08/23 11:400.0050.0005<0.0005mg/Kg1,3,5-Trimethylbenzene 03/08/23 11:400.0100.0005<0.0005mg/KgVinyl Acetate 03/08/23 11:400.0100.0005<0.0005mg/KgVinyl Chloride 03/08/23 11:400.0050.0005<0.0005mg/Kgo-Xylene 03/08/23 11:400.0100.001<0.001mg/Kgm,p-Xylene 03/08/23 11:404-Bromofluorobenzene (S)91.4 70-130 03/08/23 11:40Dibromofluoromethane (S)103 84-123 03/08/23 11:40Toluene-d8 (S)103 76-129 LCS-V30593 LCSD-V30593Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.078 78.284.80.0840.100mg/KgAcetone 29-198 8.0 20 0.082 82.787.40.0870.100mg/KgAcrolein 70-130 5.5 20 Page 5 of 20Date:03/15/2023 03:46 PM Page 26 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V30594QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V30593 LCS-V30593 LCSD-V30593Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.099 99.699.30.0990.100mg/KgAcrylonitrile 65-134 0.3 20 0.051 1041040.0510.050mg/KgBenzene 74-127 0.0 20 0.054 1101070.0530.050mg/KgBromobenzene 73-125 2.5 20 0.051 10399.00.0490.050mg/KgBromochloromethane 72-134 4.3 20 0.058 1171150.0570.050mg/KgBromodichloromethane 75-122 1.0 20 0.043 86.689.40.0440.050mg/KgBromoform 66-135 3.1 20 0.050 1011150.0570.050mg/KgBromomethane 20-180 13.3 20 0.046 93.094.40.0470.050mg/Kgn-Butylbenzene 65-135 1.4 20 0.044 89.490.80.0450.050mg/Kgsec-Butyl benzene 66-131 1.5 20 0.046 93.494.80.0470.050mg/Kgtert-Butyl benzene 67-132 1.4 20 0.049 99.81050.0520.050mg/KgCarbon Disulfide 61-129 5.2 20 0.049 99.21010.0500.050mg/KgCarbon Tetrachloride 64-143 1.9 20 0.051 1031060.0520.050mg/KgChlorobenzene 74-118 2.1 20 0.055 1111110.0550.050mg/KgChlorodibromomethane 73-122 0.1 20 0.046 93.293.80.0460.050mg/KgChloroethane 33-149 0.6 20 0.056 1131150.0570.050mg/KgChloroform 73-127 2.2 20 0.040 81.084.80.0420.050mg/KgChloromethane 45-143 4.5 20 0.048 96.695.80.0470.050mg/Kg2-Chlorotoluene 67-124 0.8 20 0.048 96.695.80.0470.050mg/Kg4-Chlorotoluene 71-126 0.8 20 0.040 81.480.60.0400.050mg/KgDi-Isopropyl Ether (DIPE)59-159 0.9 20 0.041 83.083.00.0410.050mg/Kg1,2-Dibromo-3-Chloropropane 55-157 0.0 20 0.051 1031050.0520.050mg/Kg1,2-Dibromoethane 70-132 1.7 20 0.050 1011070.0530.050mg/KgDibromomethane 74-133 5.7 20 0.043 86.686.60.0430.050mg/Kg1,2-Dichlorobenzene 72-123 0.0 20 0.043 86.684.60.0420.050mg/Kg1,3-Dichlorobenzene 71-120 2.3 20 0.040 81.281.40.0400.050mg/Kg1,4-Dichlorobenzene 71-123 0.2 20 Page 6 of 20Date:03/15/2023 03:46 PM Page 27 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V30594QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V30593 LCS-V30593 LCSD-V30593Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.052 1041060.0530.050mg/KgDichlorodifluoromethane 26-146 1.9 20 0.051 1031020.0510.050mg/Kg1,1-Dichloroethane 74-127 0.5 20 0.051 1031010.0500.050mg/Kg1,2-Dichloroethane 68-128 1.9 20 0.044 89.494.80.0470.050mg/Kg1,1-Dichloroethene 67-149 5.8 20 0.048 97.896.40.0480.050mg/Kgcis-1,2-Dichloroethene 76-134 1.4 20 0.049 98.497.40.0480.050mg/Kgtrans-1,2-Dichloroethene 73-132 1.0 20 0.049 99.41010.0500.050mg/Kg1,2-Dichloropropane 73-130 1.7 20 0.055 1111110.0550.050mg/Kg1,3-Dichloropropane 75-124 0.3 20 0.056 1131120.0560.050mg/Kg2,2-Dichloropropane 50-142 0.5 20 0.053 1071090.0540.050mg/Kg1,1-Dichloropropene 71-130 2.2 20 0.057 1151150.0570.050mg/Kgcis-1,3-Dichloropropene 71-125 0.3 20 0.059 1191200.0600.050mg/Kgtrans-1,3-Dichloropropene 68-123 1.5 20 0.048 96.61000.0500.050mg/KgEthylbenzene 74-128 3.4 20 0.099 99.497.70.0970.100mg/KgEthyl Tertiary Butyl Ether (ETBE)70-130 1.7 20 0.033 66.869.40.0340.050mg/KgHexachlorobutadiene 64-125 3.8 20 0.049 99.61100.0540.050mg/Kgn-Hexane 70-130 9.5 20 0.040 81.892.80.0460.050mg/Kg2-Hexanone 61-157 12.6 20 0.045 90.890.80.0450.050mg/KgIsopropylbenzene 68-126 0.0 20 0.047 94.093.40.0460.050mg/Kg4-Isopropyl toluene 68-129 0.6 20 0.042 85.492.40.0460.050mg/KgMethyl Ethyl Ketone (MEK)63-149 7.8 20 0.053 1071070.0530.050mg/KgMethyl tert-butyl ether (MTBE)70-130 0.5 20 0.046 93.490.20.0450.050mg/Kg4-Methyl-2-Pentanone 57-162 3.4 20 0.038 77.878.00.0390.050mg/KgMethylene Chloride 74-129 0.2 20 0.050 1011030.0510.050mg/KgNaphthalene 57-157 2.7 20 0.045 90.491.60.0450.050mg/Kgn-Propylbenzene 67-130 1.3 20 0.051 1041030.0510.050mg/KgStyrene 77-121 0.5 20 Page 7 of 20Date:03/15/2023 03:46 PM Page 28 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V30594QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V30593 LCS-V30593 LCSD-V30593Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.047 95.81000.0500.050mg/Kg1,1,1,2-Tetrachloroethane 72-115 4.6 20 0.051 1041000.0500.050mg/Kg1,1,2,2-Tetrachloroethane 56-126 3.5 20 0.045 90.691.20.0450.050mg/KgTetrachloroethene 68-130 0.6 20 0.049 99.61020.0510.050mg/KgToluene 71-129 2.5 20 0.042 84.485.00.0420.050mg/Kg1,2,3-Trichlorobenzene 68-130 0.7 20 0.044 88.489.40.0440.050mg/Kg1,2,4-Trichlorobenzene 66-125 1.1 20 0.052 1051070.0530.050mg/Kg1,1,1-Trichloroethane 67-131 1.6 20 0.050 1011030.0510.050mg/Kg1,1,2-Trichloroethane 70-133 2.1 20 0.053 1071120.0560.050mg/KgTrichloroethene 75-133 5.1 20 0.047 95.297.60.0480.050mg/KgTrichlorofluoromethane 44-146 2.4 20 0.047 94.892.60.0460.050mg/Kg1,2,3-Trichloropropane 60-137 2.3 20 0.046 93.493.20.0460.050mg/Kg1,2,4-Trimethylbenzene 69-129 0.2 20 0.046 93.893.40.0460.050mg/Kg1,3,5-Trimethylbenzene 69-128 0.4 20 0.053 1061080.0530.050mg/KgVinyl Acetate 60-140 1.3 20 0.045 91.094.80.0470.050mg/KgVinyl Chloride 48-147 4.0 20 0.050 1011040.0510.050mg/Kgo-Xylene 74-126 2.7 20 0.102 1021040.1040.100mg/Kgm,p-Xylene 75-124 1.9 20 89.887.24-Bromofluorobenzene (S)70-130 102101Dibromofluoromethane (S)84-123 102101Toluene-d8 (S)76-129 Page 8 of 20Date:03/15/2023 03:46 PM Page 29 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V30753QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V30730 Associated Lab Samples: 89932 LRB-V30730 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/13/23 22:000.6600.116<0.116mg/KgAcenaphthene 03/13/23 22:000.6600.105<0.105mg/KgAcenaphthylene 03/13/23 22:000.6600.152<0.152mg/KgAniline 03/13/23 22:000.6600.143<0.143mg/KgAnthracene 03/13/23 22:000.6600.139<0.139mg/KgBenzo(a)anthracene 03/13/23 22:000.6600.147<0.147mg/KgBenzo(a)pyrene 03/13/23 22:000.6600.146<0.146mg/KgBenzo(b)fluoranthene 03/13/23 22:000.6600.136<0.136mg/KgBenzo(g,h,i)perylene 03/13/23 22:000.6600.137<0.137mg/KgBenzo(k)fluoranthene 03/13/23 22:002.000.580<0.580mg/KgBenzoic Acid 03/13/23 22:000.6600.105<0.105mg/KgBenzyl alcohol 03/13/23 22:000.6600.118<0.118mg/KgBis(2-Chloroethoxy)methane 03/13/23 22:000.6600.107<0.107mg/KgBis(2-Chloroethyl)ether 03/13/23 22:000.3300.136<0.136mg/KgBis(2-Chloroisopropyl)ether 03/13/23 22:000.6600.120<0.120mg/KgBis(2-ethylhexyl)phthalate 03/13/23 22:000.6600.109<0.109mg/Kg4-Bromophenyl phenyl ether 03/13/23 22:000.3300.113<0.113mg/KgButyl benzyl phthalate 03/13/23 22:000.6600.092<0.092mg/Kg4-Chloro-3-methylphenol 03/13/23 22:000.3300.112<0.112mg/Kg4-Chloroaniline 03/13/23 22:000.6600.116<0.116mg/Kg2-Chloronaphthalene 03/13/23 22:000.6600.098<0.098mg/Kg2-Chlorophenol 03/13/23 22:001.000.126<0.126mg/Kg4-Chlorophenyl phenyl ether 03/13/23 22:000.6600.142<0.142mg/KgChrysene 03/13/23 22:000.6600.230<0.230mg/KgDibenz(a,h)anthracene 03/13/23 22:000.6600.119<0.119mg/KgDibenzofuran 03/13/23 22:000.6600.094<0.094mg/Kg1,2-Dichlorobenzene 03/13/23 22:000.6600.097<0.097mg/Kg1,3-Dichlorobenzene Page 9 of 20Date:03/15/2023 03:46 PM Page 30 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V30753QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V30730 Associated Lab Samples: 89932 LRB-V30730 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/13/23 22:000.3300.097<0.097mg/Kg1,4-Dichlorobenzene 03/13/23 22:000.6600.147<0.147mg/Kg3,3'-Dichlorobenzidine 03/13/23 22:000.6600.095<0.095mg/Kg2,4-Dichlorophenol 03/13/23 22:000.6600.180<0.180mg/KgDiethyl phthalate 03/13/23 22:000.6600.174<0.174mg/KgDimethyl phthalate 03/13/23 22:000.3300.108<0.108mg/Kg2,4-Dimethylphenol 03/13/23 22:000.6600.107<0.107mg/KgDi-n-butyl phthalate 03/13/23 22:001.500.240<0.240mg/Kg4,6-Dinitro-2-methylphenol 03/13/23 22:001.500.520<0.520mg/Kg2,4-Dinitrophenol 03/13/23 22:000.6600.096<0.096mg/Kg2,4-Dinitrotoluene 03/13/23 22:000.6600.108<0.108mg/Kg2,6-Dinitrotoluene 03/13/23 22:000.3300.143<0.143mg/KgDi-n-Octyl Phthalate 03/13/23 22:000.6600.123<0.123mg/KgFluoranthene 03/13/23 22:000.6600.128<0.128mg/KgFluorene 03/13/23 22:000.6600.106<0.106mg/KgHexachlorobenzene 03/13/23 22:000.6600.097<0.097mg/KgHexachlorobutadiene 03/13/23 22:000.6600.157<0.157mg/KgHexachlorocyclopentadiene 03/13/23 22:000.6600.079<0.079mg/KgHexachloroethane 03/13/23 22:000.6600.179<0.179mg/KgIndeno(1,2,3-cd)pyrene 03/13/23 22:000.6600.191<0.191mg/KgIsophorone 03/13/23 22:000.6600.106<0.106mg/Kg1-Methylnaphthalene 03/13/23 22:000.6600.100<0.100mg/Kg2-Methylnaphthalene 03/13/23 22:000.6600.097<0.097mg/Kg2-Methylphenol 03/13/23 22:000.6600.084<0.084mg/Kg3&4 Methylphenol 03/13/23 22:000.6600.144<0.144mg/KgNaphthalene 03/13/23 22:000.6600.096<0.096mg/Kg2-Nitroaniline 03/13/23 22:000.6600.120<0.120mg/Kg3-Nitroaniline Page 10 of 20Date:03/15/2023 03:46 PM Page 31 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V30753QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V30730 Associated Lab Samples: 89932 LRB-V30730 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/13/23 22:000.3300.093<0.093mg/Kg4-Nitroaniline 03/13/23 22:000.3300.116<0.116mg/KgNitrobenzene 03/13/23 22:000.6600.088<0.088mg/Kg2-Nitrophenol 03/13/23 22:000.6600.117<0.117mg/Kg4-Nitrophenol 03/13/23 22:000.6600.263<0.263mg/KgN-Nitrosodimethylamine 03/13/23 22:000.6600.181<0.181mg/KgN-Nitrosodiphenylamine 03/13/23 22:000.6600.118<0.118mg/KgN-Nitroso-di-n-propylamine 03/13/23 22:001.000.347<0.347mg/KgPentachlorophenol 03/13/23 22:000.6600.208<0.208mg/KgPhenanthrene 03/13/23 22:000.6600.112<0.112mg/KgPhenol 03/13/23 22:000.6600.134<0.134mg/KgPyrene 03/13/23 22:000.3300.079<0.079mg/KgPyridine 03/13/23 22:000.6600.107<0.107mg/Kg1,2,4-Trichlorobenzene 03/13/23 22:000.6600.096<0.096mg/Kg2,4,5-Trichlorophenol 03/13/23 22:000.6600.096<0.096mg/Kg2,4,6-Trichlorophenol 03/13/23 22:002-Fluorobiphenyl (S)93.4 44-115 03/13/23 22:002-Fluorophenol (S)91.5 35-115 03/13/23 22:00Nitrobenzene-d5 (S)85.0 37-122 03/13/23 22:004-Terphenyl-d14 (S)105 54-127 03/13/23 22:002,4,6-Tribromophenol (S)83.7 39-132 03/13/23 22:00Phenol-d5 (S)88.5 34-121 LCS-V30730Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 88.01.471.67mg/KgAcenaphthene 40-123 86.21.441.67mg/KgAcenaphthylene 32-132 Page 11 of 20Date:03/15/2023 03:46 PM Page 32 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V30753QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V30730 LCS-V30730Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 222*3.711.67mg/KgAniline 12-197 97.61.631.67mg/KgAnthracene 47-123 99.41.661.67mg/KgBenzo(a)anthracene 49-126 1101.831.67mg/KgBenzo(a)pyrene 45-129 1011.681.67mg/KgBenzo(b)fluoranthene 45-132 95.81.601.67mg/KgBenzo(g,h,i)perylene 43-134 98.81.651.67mg/KgBenzo(k)fluoranthene 47-132 47.60.7961.67mg/KgBenzoic Acid 10-83 90.41.511.67mg/KgBenzyl alcohol 29-122 81.41.361.67mg/KgBis(2-Chloroethoxy)methane 36-121 74.21.241.67mg/KgBis(2-Chloroethyl)ether 31-120 85.61.431.67mg/KgBis(2-Chloroisopropyl)ether 33-131 1111.861.67mg/KgBis(2-ethylhexyl)phthalate 51-133 94.61.581.67mg/Kg4-Bromophenyl phenyl ether 46-124 1141.911.67mg/KgButyl benzyl phthalate 48-132 79.01.321.67mg/Kg4-Chloro-3-methylphenol 45-122 74.81.251.67mg/Kg4-Chloroaniline 17-106 88.61.481.67mg/Kg2-Chloronaphthalene 41-114 82.61.381.67mg/Kg2-Chlorophenol 34-121 86.81.451.67mg/Kg4-Chlorophenyl phenyl ether 45-121 1021.711.67mg/KgChrysene 50-124 85.61.431.67mg/KgDibenz(a,h)anthracene 45-134 88.61.481.67mg/KgDibenzofuran 44-120 75.41.261.67mg/Kg1,2-Dichlorobenzene 33-117 74.21.241.67mg/Kg1,3-Dichlorobenzene 30-115 74.21.241.67mg/Kg1,4-Dichlorobenzene 31-115 71.21.191.67mg/Kg3,3'-Dichlorobenzidine 22-121 Page 12 of 20* QC Fail Date:03/15/2023 03:46 PM Page 33 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V30753QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V30730 LCS-V30730Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 80.81.351.67mg/Kg2,4-Dichlorophenol 40-122 95.21.591.67mg/KgDiethyl phthalate 50-124 90.41.511.67mg/KgDimethyl phthalate 48-124 81.41.361.67mg/Kg2,4-Dimethylphenol 30-127 1101.831.67mg/KgDi-n-butyl phthalate 51-128 88.01.471.67mg/Kg4,6-Dinitro-2-methylphenol 29-132 76.01.271.67mg/Kg2,4-Dinitrophenol 27-129 96.41.611.67mg/Kg2,4-Dinitrotoluene 48-126 94.01.571.67mg/Kg2,6-Dinitrotoluene 46-124 1081.801.67mg/KgDi-n-Octyl Phthalate 45-140 98.81.651.67mg/KgFluoranthene 50-127 91.01.521.67mg/KgFluorene 43-125 94.61.581.67mg/KgHexachlorobenzene 45-122 72.41.211.67mg/KgHexachlorobutadiene 32-123 71.21.191.67mg/KgHexachlorocyclopentadiene 32-117 73.01.221.67mg/KgHexachloroethane 28-117 94.61.581.67mg/KgIndeno(1,2,3-cd)pyrene 45-133 80.21.341.67mg/KgIsophorone 30-122 77.81.301.67mg/Kg1-Methylnaphthalene 40-119 73.61.231.67mg/Kg2-Methylnaphthalene 38-122 86.21.441.67mg/Kg2-Methylphenol 32-122 76.61.281.67mg/Kg3&4 Methylphenol 34-119 75.41.261.67mg/KgNaphthalene 35-123 89.21.491.67mg/Kg2-Nitroaniline 44-127 86.81.451.67mg/Kg3-Nitroaniline 33-119 89.81.501.67mg/Kg4-Nitroaniline 63-147 75.41.261.67mg/KgNitrobenzene 34-122 Page 13 of 20Date:03/15/2023 03:46 PM Page 34 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V30753QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V30730 LCS-V30730Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 76.01.271.67mg/Kg2-Nitrophenol 36-123 1262.101.67mg/Kg4-Nitrophenol 30-132 57.30.9571.67mg/KgN-Nitrosodimethylamine 10-146 1191.981.67mg/KgN-Nitrosodiphenylamine 38-127 81.41.361.67mg/KgN-Nitroso-di-n-propylamine 36-120 97.01.621.67mg/KgPentachlorophenol 25-133 98.21.641.67mg/KgPhenanthrene 50-121 90.41.511.67mg/KgPhenol 34-121 1051.751.67mg/KgPyrene 47-127 40.20.6731.67mg/KgPyridine 10-80 73.01.221.67mg/Kg1,2,4-Trichlorobenzene 34-118 87.41.461.67mg/Kg2,4,5-Trichlorophenol 41-124 86.21.441.67mg/Kg2,4,6-Trichlorophenol 39-126 90.42-Fluorobiphenyl (S)44-115 90.32-Fluorophenol (S)35-115 74.8Nitrobenzene-d5 (S)37-122 1104-Terphenyl-d14 (S)54-127 91.82,4,6-Tribromophenol (S)39-132 88.2Phenol-d5 (S)34-121 V 89932-MS-V30730 V 89932-MSD-V30730Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 1.43 85.61.281.671.67<0.116mg/KgAcenaphthene 76.6 40-123 11.0 20 1.42 85.01.271.671.67<0.105mg/KgAcenaphthylene 76.0 32-132 11.1 20 3.04 1822.921.671.67<0.152mg/KgAniline 175 12-197 4.0 20 Page 14 of 20Date:03/15/2023 03:46 PM Page 35 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V30753QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V30730 V 89932-MS-V30730 V 89932-MSD-V30730Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 1.54 92.21.411.671.67<0.143mg/KgAnthracene 84.4 47-123 8.8 20 1.47 88.01.391.671.67<0.139mg/KgBenzo(a)anthracene 83.2 49-126 5.5 20 1.62 97.01.501.671.67<0.147mg/KgBenzo(a)pyrene 89.8 45-129 7.6 20 1.52 91.01.381.671.67<0.146mg/KgBenzo(b)fluoranthene 82.6 45-132 9.6 20 1.41 84.41.331.671.67<0.136mg/KgBenzo(g,h,i)perylene 79.6 43-134 5.8 20 1.41 84.41.371.671.67<0.137mg/KgBenzo(k)fluoranthene 82.0 47-132 2.8 20 1.31 78.41.201.671.67<0.580mg/KgBenzoic Acid 71.8 10-83 8.7 20 1.43 85.61.271.671.67<0.105mg/KgBenzyl alcohol 76.0 29-122 11.8 20 1.29 77.21.151.671.67<0.118mg/KgBis(2-Chloroethoxy)methane 68.8 36-121 11.4 20 1.33 79.61.061.671.67<0.107mg/KgBis(2-Chloroethyl)ether 63.4 31-120 22.5*20 1.36 81.41.211.671.67<0.136mg/KgBis(2-Chloroisopropyl)ether 72.4 33-131 11.6 20 1.63 97.61.541.671.67<0.120mg/KgBis(2-ethylhexyl)phthalate 92.2 51-133 5.6 20 1.46 87.41.291.671.67<0.109mg/Kg4-Bromophenyl phenyl ether 77.2 46-124 12.3 20 1.65 98.81.571.671.67<0.113mg/KgButyl benzyl phthalate 94.0 48-132 4.9 20 1.23 73.61.131.671.67<0.092mg/Kg4-Chloro-3-methylphenol 67.6 45-122 8.4 20 1.15 68.81.031.671.67<0.112mg/Kg4-Chloroaniline 61.6 17-106 11.0 20 1.43 85.61.271.671.67<0.116mg/Kg2-Chloronaphthalene 76.0 41-114 11.8 20 1.35 80.81.191.671.67<0.098mg/Kg2-Chlorophenol 71.2 34-121 12.5 20 1.40 83.81.291.671.67<0.126mg/Kg4-Chlorophenyl phenyl ether 77.2 45-121 8.1 20 1.52 91.01.441.671.67<0.142mg/KgChrysene 86.2 50-124 5.4 20 1.27 76.01.191.671.67<0.230mg/KgDibenz(a,h)anthracene 71.2 45-134 6.5 20 1.43 85.61.351.671.67<0.119mg/KgDibenzofuran 80.8 44-120 5.7 20 1.24 74.21.081.671.67<0.094mg/Kg1,2-Dichlorobenzene 64.6 33-117 13.7 20 1.20 71.81.081.671.67<0.097mg/Kg1,3-Dichlorobenzene 64.6 30-115 10.5 20 1.19 71.21.071.671.67<0.097mg/Kg1,4-Dichlorobenzene 64.0 31-115 10.6 20 0.930 55.60.9041.671.67<0.147mg/Kg3,3'-Dichlorobenzidine 54.1 22-121 2.8 20 Page 15 of 20* QC Fail Date:03/15/2023 03:46 PM Page 36 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V30753QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V30730 V 89932-MS-V30730 V 89932-MSD-V30730Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 1.28 76.61.151.671.67<0.095mg/Kg2,4-Dichlorophenol 68.8 40-122 10.6 20 1.45 86.81.361.671.67<0.180mg/KgDiethyl phthalate 81.4 50-124 6.4 20 1.42 85.01.301.671.67<0.174mg/KgDimethyl phthalate 77.8 48-124 8.8 30 1.37 82.01.221.671.67<0.108mg/Kg2,4-Dimethylphenol 73.0 30-127 11.5 20 1.62 97.01.501.671.67<0.107mg/KgDi-n-butyl phthalate 89.8 51-128 7.6 20 1.46 87.41.371.671.67<0.240mg/Kg4,6-Dinitro-2-methylphenol 82.0 29-132 6.3 20 1.53 91.61.381.671.67<0.520mg/Kg2,4-Dinitrophenol 82.6 27-129 10.3 20 1.49 89.21.371.671.67<0.096mg/Kg2,4-Dinitrotoluene 82.0 48-126 8.3 20 1.47 88.01.341.671.67<0.108mg/Kg2,6-Dinitrotoluene 80.2 46-124 9.2 20 1.55 92.81.451.671.67<0.143mg/KgDi-n-Octyl Phthalate 86.8 45-140 6.6 20 1.50 89.81.371.671.67<0.123mg/KgFluoranthene 82.0 50-127 9.0 20 1.48 88.61.341.671.67<0.128mg/KgFluorene 80.2 43-125 9.9 20 1.47 88.01.321.671.67<0.106mg/KgHexachlorobenzene 79.0 45-122 10.7 20 1.20 71.81.071.671.67<0.097mg/KgHexachlorobutadiene 64.0 32-123 11.4 20 1.21 72.41.041.671.67<0.157mg/KgHexachlorocyclopentadiene 62.2 32-117 15.1 20 1.25 74.81.091.671.67<0.079mg/KgHexachloroethane 65.2 28-117 13.6 20 1.38 82.61.281.671.67<0.179mg/KgIndeno(1,2,3-cd)pyrene 76.6 45-133 7.5 20 1.26 75.41.121.671.67<0.191mg/KgIsophorone 67.0 30-122 11.7 20 1.28 76.61.151.671.67<0.106mg/Kg1-Methylnaphthalene 68.8 40-119 10.6 20 1.22 73.01.111.671.67<0.100mg/Kg2-Methylnaphthalene 66.4 38-122 9.4 20 1.37 82.01.201.671.67<0.097mg/Kg2-Methylphenol 71.8 32-122 13.2 20 1.23 73.61.081.671.67<0.084mg/Kg3&4 Methylphenol 64.6 34-119 12.9 20 1.23 73.61.091.671.67<0.144mg/KgNaphthalene 65.2 35-123 12.0 20 1.44 86.21.301.671.67<0.096mg/Kg2-Nitroaniline 77.8 44-127 10.2 20 1.28 76.61.181.671.67<0.120mg/Kg3-Nitroaniline 70.6 33-119 8.1 20 1.43 85.61.321.671.67<0.093mg/Kg4-Nitroaniline 79.0 63-147 8.0 20 Page 16 of 20Date:03/15/2023 03:46 PM Page 37 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V30753QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V30730 V 89932-MS-V30730 V 89932-MSD-V30730Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 1.21 72.41.111.671.67<0.116mg/KgNitrobenzene 66.4 34-122 8.6 20 1.17 70.01.091.671.67<0.088mg/Kg2-Nitrophenol 65.2 32-123 7.0 20 1.63 97.61.741.671.67<0.117mg/Kg4-Nitrophenol 104 30-132 6.5 20 0.799 47.80.7351.671.67<0.263mg/KgN-Nitrosodimethylamine 44.0 10-146 8.3 30 1.96 1171.761.671.67<0.181mg/KgN-Nitrosodiphenylamine 105 38-127 10.7 20 1.32 79.01.121.671.67<0.118mg/KgN-Nitroso-di-n-propylamine 67.0 36-120 16.3 20 1.57 94.01.451.671.67<0.347mg/KgPentachlorophenol 86.8 25-133 7.9 20 1.54 92.21.401.671.67<0.208mg/KgPhenanthrene 83.8 50-121 9.5 20 1.43 85.61.251.671.67<0.112mg/KgPhenol 74.8 34-121 13.4 20 1.55 92.81.451.671.67<0.134mg/KgPyrene 86.8 47-127 6.6 20 0.576 34.40.5241.671.67<0.079mg/KgPyridine 31.3 10-80 9.4 20 1.17 70.01.071.671.67<0.107mg/Kg1,2,4-Trichlorobenzene 64.0 34-118 8.9 20 1.38 82.61.281.671.67<0.096mg/Kg2,4,5-Trichlorophenol 76.6 41-124 7.5 20 1.41 84.41.251.671.67<0.096mg/Kg2,4,6-Trichlorophenol 74.8 39-126 12.0 20 87.42-Fluorobiphenyl (S)76.6 44-115 84.92-Fluorophenol (S)74.2 35-115 71.2Nitrobenzene-d5 (S)62.2 37-122 93.44-Terphenyl-d14 (S)87.4 54-127 86.12,4,6-Tribromophenol (S)78.4 39-132 81.0Phenol-d5 (S)70.9 34-121 Page 17 of 20Date:03/15/2023 03:46 PM Page 38 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Massachusetts EPH MADEP-EPH V30725QC Analytical Batch(es): Analysis Method: Analysis Description: MAEPH (Prep) QC Prep:V30678 Associated Lab Samples: 89932 LRB-V30678 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/13/23 11:1850.09.20<9.20mg/KgAliphatic C9-C18 03/13/23 11:1850.012.2<12.2mg/KgAliphatic C19-C36 03/13/23 11:1850.014.2<14.2mg/KgAromatic C11-C22 03/13/23 11:182-Fluorobiphenyl (S)91.2 40-140 03/13/23 11:182-Bromonaphthalene (S)81.5 40-140 03/13/23 11:18Chlorooctadecane (S)91.1 40-140 03/13/23 11:18OTP Surrogate (S)79.6 40-140 LCS-V30678 LCSD-V30678Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 45.7 76.166.539.960.0mg/KgAliphatic C9-C18 40-140 13.5 50 79.2 99.097.177.780.0mg/KgAliphatic C19-C36 40-140 1.9 50 158 92.9122208170mg/KgAromatic C11-C22 40-140 27.3 50 87.01132-Fluorobiphenyl (S)40-140 75.01032-Bromonaphthalene (S)40-140 96.192.0Chlorooctadecane (S)40-140 76.894.1OTP Surrogate (S)40-140 Page 18 of 20Date:03/15/2023 03:46 PM Page 39 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 QC Prep Batch Method: Massachusetts VPH MADEP-VPH V30605QC Analytical Batch(es): Analysis Method: Analysis Description: MAVPH (Prep) QC Prep:V30604 Associated Lab Samples: 89932 LRB-V30604 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/08/23 14:288.001.22<1.22mg/KgAliphatic C5-C8 03/08/23 14:288.004.56<4.56mg/KgAliphatic C9-C12 03/08/23 14:288.000.624<0.624mg/KgAromatic C9-C10 03/08/23 14:282,5-Dibromotoluene (FID) (S)121 70-130 03/08/23 14:282,5-Dibromotoluene (PID) (S)120 70-130 LCS-V30604 LCSD-V30604Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 31.5 98.492.529.632.0mg/KgAliphatic C5-C8 70-130 6.2 50 38.7 12111436.432.0mg/KgAliphatic C9-C12 70-130 6.1 50 12.7 11911212.010.7mg/KgAromatic C9-C10 70-130 5.6 50 94.393.22,5-Dibromotoluene (FID) (S)70-130 92.686.22,5-Dibromotoluene (PID) (S)70-130 Page 19 of 20Date:03/15/2023 03:46 PM Page 40 of 43 Quality Control Data 23-059-0009Report No: Project Description: Client ID:Falcon Engineering W57045 Dry Weight Determination SW-DRYWT V30380QC Analytical Batch: Analysis Method: Analysis Description: V 90021-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 03/02/23 17:420.011.211.2%Moisture V 90022-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 03/02/23 17:420.629.529.3%Moisture Page 20 of 20Date:03/15/2023 03:46 PM Page 41 of 43 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-059-0009 Falcon Engineering 00122 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 3.2C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)?Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs ü Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)ü High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:02/28/2023 13:45:09 Special precautions or instructions included? Comments: Page 42 of 43 Page 43 of 43 certifications NC State University: • S&EC/Storm Water Workshop • Advanced Problems in Hydric Soils Evaluation • Wetland Identification & Delineation • Intermittent & Perennial Stream Identification for Riparian Buffer Rules NC & VA (NC DWQ) professional affiliations NCAEP- North Carolina Association of Environmental Professionals ACEC- Environmental Science and Planning Subcommittee SPWS- Society of Professional Wetland Scientists AIA- American Institute of Architects ULI- Urban Land Institute SMPS- Society for Marketing Professional Services NCWRA- North Carolina Water Resources Association education B.S., Natural Resource Management, North Carolina State University, 2003 project experience BB&T, Wells Fargo, TD Bank, SunTrust; Environmental Services Approved Vendor Mr. Burkhardt has managed hundreds of Phase I and II ESA’s, limited asbestos, lead-based paint and mold surveys, Transaction Screens, UST Sampling and Closure Reports. NCDOT; Various PSA’s Provided Senior Project Management for the conductance of multiple PSA’s for road widen- ing projects throughout North Carolina. The PSA’s included areas within the Right-of-Way and PUE as well as entire parcels based on potential risk. Project tasks included the oversight of Geophysical Survey activities, subcontractred Geoprobe Investigations, field sampling activities, UST removal and final report writing. City of Raleigh, Public Utilities Department, Proposed Devereux Meadows Park and Sewer Improvements Provided Phase I ESA services on the proposed 15 acre park and sewer improvements in downtown Raleigh. The park was located on a former 1950s vehicle maintenance facility that included a service building, fueling station, and car wash along with multiple USTs and oil water separators. In addition, the site was surrounded by gas stations and dry cleaners with known contamination. An appropriate soil and groundwater contamination investigation plan was developed based on the findings. Serving as Falcon’s Environmental Department Manager, Christopher Burkhardt’s duties include project implementation and management; proposal preparation; review of environmental reports (Phase I and II Environmental Site Assessments, Asbestos, Lead Based Paint and Mold Inspections); coordinating and supervising environmental staff & subcontractors; and providing technical expertise for routine to complex projects involving compliance with Sections 401 & 404 of the Clean Water Act, NC Sedimentation Pollution Control Act of 1973, Section 7 of the Endangered Species Act, Section 106 of the National Historic Preservation Act, National and State Environmental Policy Acts (NEPA/SEPA). Through Mr. Burkhardt’s professional experiences, he has worked with and developed relationships with a network of regulators across the Mid-Atlantic States, including regulators with the US Army Corps of Engineers, State Water Quality & Land Resources, US Fish & Wildlife Service, and State Historic Preservation Office. christopher burkhardt, pwsenvironmental department manager Falcon engineering, inc. Falcon engineering, inc - resume 1 PROFESSIONAL REGISTRATIONS Registered Professional Engineer: NC #039779, SC #32235, VA #56754 EDUCATION B.S., Civil Engineering, North Carolina State University, 2008 FALCON ENGINEERING, INC. PROJECT EXPERIENCE Durham County, Brown Water Treatment Plant, Durham, NC Falcon was retained to provide early geoenvironmental services as part of the plant expansion at one of Durham County’s waste water treatment plants. During initial assessment, suspect discolored groundwater was observed and Falcon was asked to investigate further for the presence of potential contaminants. Two constituents, arsenic and barium, were identified. However, Falcon was able to confirm the levels of these two constituents were consistent with naturally occurring levels, were below the Protection of Groundwater Preliminary Soil Remediation Goals, and were not likely to be of concern during construction of the expansion project. Andrews Bypass, US Highway 521, Williamsburg County, SC Provided Senior Project Management for a geo-environmental assessment of 80 acres of developed and undeveloped forested land in Andrews, South Carolina in support of a proposed 3.7 mile, 200 foot wide proposed route to connect US Highway 521 and bypass the municipality of Andrews. The assessments included areas within existing right-of-way as well as entire parcels for proposed new construction. Project tasks included the oversight of envi- ronmental Investigations locating USTs and ASTs managing staff and field sampling activities, and final report writing. City of Raleigh, Hillsborough Street Phase II Improvements, Raleigh, NC Provided Senior Project Management for a UST Geo-Environmental Assessment within the proposed Hillsborough Street Phase II Improvement Project Corridor from Henderson Street to Gardner. The proposed project corridor included several former and current gas stations and auto repair facilities. Project tasks included oversight of geo-physical services to locate UST’s and utilities and management of geoprobe borings. Provided additional soil and groundwater assessment where needed as well as contaminated soil monitoring, excavation, and remediation during construction and installation of underground utilities. Town of Chapel Hill, Police Department, Environmental Due Diligence, Chapel Hill, NC Falcon was originally asked to prepare an Environmental Due Diligence report for this prop- erty prior to placing the parcel for sale. During the assessment, Falcon determined the site was used as a borrow pit in the late 1950’s through early 1960’s then as a fill site from the mid- 1960’s to mid-1970’s. Falcon recommended additional assessment and confirmed the presence of coal combustion products. Falcon utilized GPR services to confirm the absence of USTs and avoid utilities, geoprobe technology to sample soil and groundwater, and rotary drill rigs to install monitoring wells. Falcon sampled the soil and groundwater on-site in an effort to further delineate environmental conditions present in regards to the former use as a landfill. JEREMY HAMM, PEGEOTECHNICAL DEPARTMENT MANAGER RESUME Jeremy is currently in a design and project management role where he oversees projects from their inception, including proposal and scope development, client relations, managing field crews and activities, performing engineering design calculations, preparing and reviewing re- ports, and project follow-up services. Jeremy is a professional engineer with great enthusiasm and a keen interest in understanding complex geological and geotechnical concepts. He pos- sesses meticulous attention to detail, mastery of technical writing skills, a commendable work ethic, and a thirst for knowledge which ensure only the highest of quality in his work. He has continually displayed his natural leadership abilities by independently seizing on opportuni- ties to better both himself and Falcon through project, company, and client related needs, and involvement in professional organizations and his community.