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HomeMy WebLinkAboutWS-96050_95962_CA_IAR_20210326Initial Assessment Report Cheney Brothers, Inc. – Diesel Fuel Release March 26, 2021 Page 2 B. Background and Initial Response Activities The subject site is located on the shoulder to the Southbound lane of Interstate 85, off exit ramp 121 in Greensboro, North Carolina. The approximate location of the site is graphically presented on Figure 1 and Figure 2 (included in Appendix A), and is situated at approximate coordinates 36.003879 N and - 79.846022 W. A map of the area impacted is included as Figure 3. Based on information obtained by Highlands Environmental Solutions, Inc. (HES), First Call Environmental (FCE) was contacted by local response personnel at 2230 hours on January 21, 2021, that a tractor-trailer owned and operated by Cheney Brothers, Inc. was involved in a single-vehicle accident. The Cheney Brother’s tractor-trailer left the traveling lane by overturning on the exit ramp, eventually colliding with a bridge pier. The collision punctured the fuel tank in the process, resulting in the release of an estimated 60 to 80 gallons of diesel fuel to the paved and unpaved surfaces to the roadway. A stormwater drainage ditch (located parallel to the roadway) was impacted by the release; the release flowed with topography to the Southeast extending to 30 feet prior to being contained. A stormwater inlet located 65 feet from the incident location was not impacted by the release. Personnel from FCE mobilized to the site on January 21, 2021, for emergency response activities. Initial incident response actions included assessing the extent of the petroleum release and recovering petroleum product using granular absorbents, sorbent pads, and booms. Hydrocarbon booms were also placed at the end of the stormwater drainage ditch as a preventative measure to protect the stormwater inlet pending the excavation of petroleum impacted soil. HES was contracted by FCE to perform geologic oversite and reporting for the subject site. Prior to any on-site remediation activities, FCE notified the NC One-Call Center (811) to mark the area for buried utilities. A site-specific health and safety plan (HASP) was developed by HES for site activities. A copy of the HASP is included in Appendix B. The guard rail located at the incident site was removed for excavation activities. C. Free Product Investigation and Recovery As noted in Section B, the release included an estimated 60 to 80 gallons of diesel fuel release that impacted the pavement, vegetation, and a stormwater drainage ditch along the shoulder of exit ramp 121 off I-85 S; in Greensboro, Guildford County, North Carolina. Response personnel mobilized to the site on January 21, 2021, and initially applied absorbent pads and booms in preventing further impact to the stormwater drainage ditch, which was not impacted by the release. All spent sorbents were recovered and containerized into one 55-gallon steel drum. The waste drum was removed by FCE and transported to HERR Environmental in Thomasville, North Carolina for proper disposal. A copy of the waste manifest documentation is included in Appendix C. D. Groundwater and Surface Water Investigation As noted in Section B, the released petroleum product impacted the paved surfaces of the roadway, unpaved surfaces of the shoulder, and a stormwater drainage ditch along exit ramp 121 of Interstate 85 Southbound. The diesel fuel traveled 30 feet West along the stormwater drainage ditch. The release did not impact a stormwater inlet located 65 feet from the initial release location. The stormwater system traverses under the interstate and discharges to a creek that leads to Jenny Branch, located approximately 1.5 miles to the Southwest of the release location. The surface water body of Jenny Branch Creek was neither impacted nor threatened by this release. As such a surface water investigation was not performed. Groundwater was not encountered during soil excavation activities; therefore, a groundwater investigation was not performed during site activities. E. Initial Response and Abatement Activities. Initial Assessment Report Cheney Brothers, Inc. – Diesel Fuel Release March 26, 2021 Page 3 Initial response and abatement actions are summarized in Section B, above. F. Excavation of Petroleum Impacted Soil Personnel from HES and FCE were on site to conduct soil excavation activities in the impacted area on March 10, 2021. Personnel from FCE utilized a track-mounted mini-excavator and a skid steer to excavate the petroleum-impacted soil. Prior to the excavation of petroleum-impacted soil, the guard railing to the interstate was removed due for easier excavator access. Excavated soils were loaded into dump trucks. As excavation proceeded, the soils were examined for evidence of petroleum impacts (i.e. staining or odor). HES personnel collected random soil samples from the area and field screened the samples for organic vapors using a photoionization detector (PID – MiniRae 3000). To field screen the samples, an aliquot of soil was placed in a clean, labeled, zip-lock bag and allowed to volatilize for 10 minutes. At the end of the volatilization period, the sampling probe for the PID was inserted into the bag to screen for the presence of organic vapors. The final excavation of impacted soil extended from the initial release location and along the length of the impacted shoulder and drainage ditch, and measured approximately 40 feet long, varied from 10 to 15 feet wide, and varying from half a foot to three feet deep at the initial collision location. Following completion of soil excavation activities, a total of thirteen post-excavation confirmation samples were collected from the excavated area. A diagram depicting the excavation and sample collection locations is included as Figure 4. Upon collection, the samples were placed in labeled, pre-preserved, laboratory- supplied containers and maintained on ice pending delivery to the analytical laboratory. The soil samples were transported by HES to Pace Analytical Laboratory for laboratory analysis of diesel range organics (DRO), using Method 3541/8015; and gasoline range organics (GRO), using Method 5035/8015. Sufficient sample volume was also collected and submitted for expanded analysis of volatile organic compounds (VOCs), by Method 8260; and semi-volatile organic compounds (SVOCs), by Method 8270 if needed. A summary of the soil analytical data is presented in Table 1 in Appendix D. The complete laboratory analytical data report and chain-of-custody records for all samples are; included as Appendix E. During soil remediation activities, approximately 15 tons of petroleum-impacted soil were excavated and transported to Oak Hill Farms, located in Autryville, NC, for proper disposal via land application. Copies of the waste manifest documentation for the petroleum-impacted soil are included in Appendix C. The excavated area was backfilled with clean base material, then compacted with the bucket and treads of the excavator and skid steer. The excavated area was seeded and covered with straw matting to prevent erosion. Selected photographs and excavation activities are included in Appendix F. G. Conclusions and Recommendations On January 21, 2021, a tractor-trailer was involved in a single-vehicle accident by colliding into a bridge pier. The collision caused a release of diesel fuel on the exit ramp of 121 off Interstate 85 Southbound. The incident caused a release of an estimated 60 to 80 gallons of diesel fuel. The release impacted paved roadway surfaces, unpaved surfaces along the shoulder, and the stormwater drainage ditch that runs parallel to I-85 Southbound. The release extended to 30 feet along the stormwater drainage ditch, prior to being contained. The stormwater inlet located at the site was not impacted by the release. Residual fuel was recovered by use of granular sorbent, sorbent pads, and boom during initial response activities on January 21, 2021. The waste sorbents were recovered, and containerized into one 55-gallon steel drum that was transported by FCE to HERR Environmental in Thomasville, NC, for proper disposal. Personnel and equipment from FCE and HES mobilized to the site on March 10, 2021, for excavation activities. Soil excavation activities associated with the removal of petroleum-impacted soil at the site Initial Assessment Report Cheney Brothers, Inc. – Diesel Fuel Release March 26, 2021 Page 4 were performed on March 10, 2021, with a total of 15 tons of petroleum-impacted soil being removed. All excavated soil was transported to Oak Hill Farms in Autryville, North Carolina for proper disposal. The closest surface water body is an unnamed tributary of Jenny Branch Creek, located approximately 1.5 miles Southeast of the release location. Jenny Branch Creek was neither impacted nor threatened. A total of thirteen soil samples were collected from the excavated area of the site for confirmation analysis. All confirmation soil samples were submitted to Pace Analytical Laboratory, a North Carolina- certified laboratory for analysis of DRO and GRO; and expanded analysis by EPA Method 8260 and 8270, if needed. Laboratory analysis of the post-excavation confirmation samples did not result in the detection of DRO nor GRO at concentrations greater than their respective NCDEQ action limits. Based on the results of environmental assessment activities, HES concludes that soil excavation activities successfully remediated the area impacted by this petroleum release. As such, HES does not recommend additional environmental assessment or remediation activities at the subject site with regards to this incident. HES recommends that correspondence documenting ‘No Further Action’ required to be forwarded to Cheney Brothers, Inc. regarding this incident. APPENDIX A Location of Incident Approximate Scale N 0 700 1400 feet Base diagram from Bing Maps. Incident Location Diagram Project Name Diesel Fuel Release – Exit 121 off I-85 SB; Greensboro; Guilford County, NC Client First Call Environmental / Cheney Brothers, Inc. Project # 340036 Drawn by BA Scale As Shown Date March 2021 Fig. # 1 Location of Incident Approximate Scale N 0 920 1840 feet Base diagram from USGS Topographic Map; Greensboro, NC, 2016 Topographic Location Diagram Project Name Diesel Fuel Release – Exit 121 off I-85 SB; Greensboro; Guilford County, NC Client First Call Environmental / Cheney Brothers, Inc. Project # 340036 Drawn by BA Scale As Shown Date March 2021 Fig. # 2 Location of Incident Approximate Scale N 0 300 600 feet Base diagram from Google Maps Aerial Location Diagram Project Name Diesel Fuel Release – Exit 121 off I-85 SB; Greensboro; Guilford County, NC Client First Call Environmental / Cheney Brothers, Inc. Project # 340036 Drawn by BA Scale As Shown Date March 2021 Fig. # 3 N Exit Ramp 121 Bridge Supporting Piers Guard railing removal S-13 Stormwater Inlet Stormwater Drainage Ditch S-2 S-5 S-8 S-9 S-12 S-1 S-11 S-3 S-4 S-7 S-6 S-10 Approximate Excavation Limits I-85 Southbound Legend Excavation Depth 12 inches Excavation Depth 18 inches Excavation Depth 24 inches Approximate Scale Site / Client Name Diesel Fuel Release First Call Environmental / Cheney Brothers, Inc. Soil Boring Location 0 5 10 feet Greensboro, NC Fig. 4 PG: JB PE: Drawing Name Excavation and Sample Location Diagram DB: BA PM: JB Project Number: 340036 Date: March 2021 Scale: As Shown APPENDIX B Highlands Environmental Solutions, Inc. HEALTH AND SAFETY PLAN For Site Activities at: Diesel Fuel Release Remediation First Call Environmental Greensboro, NC March 2021 Minimum Level of Protection at this site is Level D Contaminants of Concern are Petroleum Hydrocarbons Joe Beaman, P.G. Project Manager The information in this HASP is provided solely for the protection of the health and safety of Highlands Environmental Solutions employees and subcontractors working under the direct supervision and control of Highlands Environmental Solutions on this project. Highlands Environmental Solutions assumes no liability for, or responsibility to, any other parties for the accuracy or completeness of the information contained herein for any use or reliance upon this HASP by any other party. Health and Safety Plan Diesel Fuel Release; Greensboro, NC Page 2 March 2021 IN THE EVENT OF ANY EMERGENCY, CONTACT PROJECT MANAGER OR HEALTH AND SAFETY REPRESENTATIVE SITE EMERGENCY FORM Contaminants of Concern: Petroleum Hydrocarbons Minimum Level of Protection: Level D Do not endanger your life. Survey the situation before taking any action. Highlands Environmental Solutions Office Telephone: (919) 848-3155 Site Location Address: I-85 S exit 121; Greensboro, NC Telephone Located at: HES Personnel (cellular phone) EMERGENCY PHONE NUMBERS Ambulance: 911 Fire: 911 Police: 911 Hospital Name: High Point Medical Center Hospital Phone: 336-878-6000 Project Manager: J. Beaman 919-414-7081 Health and Safety Specialist: B. Abushouk 919-523-3679 Client Contact: Ms. Taylor Thartman 804-305-1171 Poison Control: (800) 848-6946 State Agency: NCDEQ (WSRO) 336-776-9800 UTILITY MARKER EMERGENCY TELEPHONE NUMBERS Utility Color Code Telephone Number Water Blue (800) 632-4949 Gas Yellow (800) 632-4949 Electric Red (800) 632-4949 Telephone Orange (800) 632-4949 Cable Orange (800) 632-4949 Sewer Green (800) 632-4949 Dig Safe Telephone Number: (888) 721-7877 Health and Safety Plan Diesel Fuel Release; Greensboro, NC Page 3 March 2021 HOSPITAL LOCATION MAP Hospital Directions: Take I-85 S to M.L.K. Jr Dr in Jamestown. Take the M L King Jr Dr exit from I-85BL S/US-29 S/US-70 W Continue on M.L.K. Jr Drive to your destination Hospital Information: Name: High Point Medical Center Address: 601 N Elm St. City, State: High Point, NC Phone: 336-878-6000 Health and Safety Plan Diesel Fuel Release; Greensboro, NC Page 4 March 2021 FIRST AID FOR PETROLEUM HYDROCARBON EMERGENCIES Ingestion: DO NOT INDUCE VOMITING. Call Poison Control; follow instructions. Administer cardiopulmonary resuscitation (CPR), if necessary. Seek medical attention. Inhalation: Remove person from contaminated environment. DO NOT ENTER A CONFINED SPACE TO RESCUE SOMEONE WHO HAS BEEN OVERCOME UNLESS PROPERLY EQUIPPED AND A STANDBY PERSON IS PRESENT. Administer CPR if necessary. Seek medical attention. Skin Contact: Brush off dry material, remove wet or contaminated clothing. Flush skin thoroughly with water. Seek medical attention if irritation persists. Eye Contact: Flush eyes with water for 15 minutes. Seek medical attention. Exposure Symptoms: Headache, dizziness, nausea, drowsiness, irritation of eyes, nose, throat, breathing difficulties. Contingency Plan: Report incident to Project Manager (PM) after emergency procedures have been implemented. RESPONDER MUST HAVE A CURRENT CERTIFICATE TO ADMINISTER FIRST AID OR CPR 1. Survey the situation. Do not endanger your own life. DO NOT ENTER A CONFINED SPACE TO RESCUE SOMEONE WHO HAS BEEN OVERCOME UNLESS PROPERLY EQUIPPED AND A STANDBY PERSON IS PRESENT. 2. Call 911 (if available) or the fire department IMMEDIATELY. Explain the physical injury, chemical exposure, fire, or release. 3. Decontaminate the victim without delaying life-saving procedures. 4. If the victim's condition appears to be noncritical, but seems to be more severe than minor cuts, he/she should be transported to the nearest hospital by trained Emergency Medical Services (EMS) personnel: let the doctor assume the responsibility for determining the severity of the injury. If the condition is obviously serious, EMS must transport the victim. 5. Notify the PM. Health and Safety Plan Diesel Fuel Release; Greensboro, NC Page 5 March 2021 EMERGENCY FIRST AID PROCEDURES To Stop Bleeding CPR 1. Give medical statement. 2. Assure airway, breathing, and circulation. 3. Use DIRECT PRESSURE over the wound with clean dressing or your hand (use nonpermeable gloves). Direct pressure will control most bleeding. 4. Bleeding from an artery or several injury sites may require DIRECT PRESSURE on a PRESSURE POINT. Use pressure points for 30 - 60 seconds to help control severe bleeding. 5. Continue primary care and seek medical aid as needed. 1. Call for help. 2. Arousal: check for consciousness. 3. Open airway with chin-lift. 4. Look, listen, and feel for breathing. 5. If breathing is absent, give 2 slow, full rescue breaths. 6. Check the pulse for 5 to 10 seconds. 7. If pulse is present, continue rescue breathing: 1 breath every 5 seconds 8. If pulse is absent, start CPR: 15 compressions, 2 breaths (1 man) Health and Safety Plan Diesel Fuel Release; Greensboro, NC Page 6 March 2021 Project and Health and Safety Information HES has been retained by Barnett Properties to perform a diesel fuel release remediation at the Morrisville Market, located at 1017 Morrisville-Carpenter Road in Morrisville, NC All work will comply with the Occupational Safety and Health Act (OSHA) standard, "Hazardous Waste Operations and Emergency Response," (29 CFR 1910.120), and other federal, state and local procedures that require the development and implementation of a HASP. Generation of this document certifies that the workplace has been evaluated for the hazards as described. A hazard assessment has been performed and the adequacy of the personal protective equipment (PPE) selected is hereby certified per 29 CFR 1910.132(d) and is duly noted by the signature(s) and date appearing on the cover page of this document. If any site conditions are encountered that are different from typical retail petroleum operations, the field investigator is to stop work immediately and notify the Project Manager. This plan addresses the safety issues associated environmental investigation and assessment activities performed at retail petroleum operations. For this project, site investigation activities will involve the following (checked items): Phase I Environmental Site Assessment Phase II Environmental Site Assessment x Spill Response and Abatement Soil sampling (hand auger) Soil sampling (drilling) Monitoring well installation UST removal (requires full HASP) x Soil excavation Groundwater sampling/monitoring Groundwater remediation Drum removal Site surveying Soil Gas / VI assessment/survey Pump/Slug testing All activities of this project will be carried out under Level D or Modified Level D. At a minimum, all personnel will wear the following PPE based on the task to be performed at the site (checked items): x Hard Hat x Safety Vest x Steel Toe Boots Chemical Boots x Nitrile gloves (sampling gloves) Heavy Nitrile gloves x Safety glasses Ear plugs/ear muffs (sound suppression) White Tyvek Yellow (polycoated) Tyvek Miscellaneous - Be aware of your surroundings and traffic as excavation will take place near a busy intersection. Be careful. Health and Safety Plan Diesel Fuel Release; Greensboro, NC Page 7 March 2021 HAZARD IDENTIFICATION AND CONTROL Precautions must be taken to prevent injuries and exposures to the following potential hazards. . Potential Hazards and Control Potential Hazard Control Exposure to Petroleum Products Vehicular Traffic Vault Entry Utility Lines Contact Inclement Weather Noise 1. Stand up-wind of petroleum products whenever possible. 2. Minimize contact and contact time with petroleum products. 3. Avoid walking through discolored areas, puddles, leaning on drums, or contacting anything that is likely to be contaminated. 4. Do not eat, drink, smoke and/or apply cosmetics in the hot or warm zones. 5. Wear gloves when in contact with contaminated surfaces. 6. Safety glasses must be worn at a minimum. 7. Splash goggles must be worn when working with liquids. 8. >25 ppm organic vapors in breathing zone requires upgrade to Level C. 9. >250 ppm organic vapors in breathing zone requires upgrade from Level C to Level B. 10. If unknown materials are encountered, call the HSS. 1. Wear traffic safety vest when vehicle hazard exists. 2. Use cones, flags, barricades, and caution tape to define work area. 3. Use vehicle to block work area. 4. Engage police detail for high-traffic situations. 1. HES Personnel do not perform Confined Space Entry. 1. Contact Dig Safe to have utility lines marked prior to excavation/trenching. 2. Refer to site drawings or customer interviews if on private property for utility locations. 3. Hand dig 3 to 5 feet down and 5 feet each side of utility marker to avoid breaking utility lines. 1. Stop outdoor work during electrical storms and other extreme weather conditions such as extreme heat or cold temperatures. 2. Take cover indoors or in vehicle. 3. Listen to local forecasts for warnings about specific weather hazards such as tornados, hurricanes, and flash floods. 1. Wear hearing protection when equipment such as a drill rig, jackhammer, cut saw, air compressor, blower or other heavy equipment is operating on the site. 2. Wear hearing protection whenever you need to raise your voice above normal conversational speech due to a loud noise source; this much noise indicates the need for protection. Health and Safety Plan Diesel Fuel Release; Greensboro, NC Page 8 March 2021 Potential Hazard Control Electric Shock Physical Injury Back Injury Heat Stress Cold Stress High Crime Areas Insects Poisonous Plants (Such as Poison Ivy, Oak, etc.) 1. Maintain appropriate distance from overhead utilities; 20-foot minimum clearance from power lines required; 10-foot minimum clearance from shielded power lines. 2. Use ground-fault circuit interrupters as required. 3. Perform lockout/tagout procedures (Appendix C). 4. Use three-pronged plugs and extension cords. 5. Contact your local underground utility-locating service. 6. Follow code requirements for electrical installations in hazardous locations. 1. Wear hard hats and safety glasses when on-site. 2. Maintain visual contact with the equipment operator and wear orange safety vest when heavy equipment is used on-site. 3. Avoid loose-fitting clothing (driller and driller's helper). 4. Prevent slips, trips and falls; keep work area uncluttered. 5. Keep your hands away from moving parts (i.e., augers). 6. Test the emergency shutoff switch on the drill rig daily. 1. Use a mechanical lifting device or a lifting aid where appropriate. 2. If you must lift, plan the lift before doing it. 3. Check your route for clearance. 4. Bend at the knees and use leg muscles when lifting. 5. Use the buddy system when lifting heavy or awkward objects. 6. Do not twist your body while lifting. 1. Increase water intake while working. 2. Increase number of rest breaks and/or rotate workers in shorter work shifts. 3. Watch for signs and symptoms of heat exhaustion and fatigue. 4. Plan work for early morning or evening during hot months. 5. Use ice vests when necessary. 6. Rest in cool, dry areas. 7. In the event of heat stroke, bring the victim to a cool environment and initiate first aid procedures. 1. Take breaks in heated shelters when working in extremely cold temperatures . 2. Remove the outer layer of clothing and loosen other layers to promote evaporation of perspiration, upon entering the shelter. 3. Drink warm liquids to reduce the susceptibility to cold stress. 1. Be aware of surroundings. 2. Use the buddy system. 3. Request police detail when appropriate. 1. Tuck pants into socks. 2. Wear long sleeves. 3. Use insect repellent. 1. Don't enter areas infested with poisonous plants. 2. Immediately wash any areas that come into contact with poisonous plants. Health and Safety Plan Diesel Fuel Release; Greensboro, NC Page 9 March 2021 Potential Hazard Control Ladders Fire Control Static Electricity Drilling/Boring Operations Well Installation, Well Development, Well Gauging, Well Bailing, Soil/Ground- water Sampling Welding, Cutting, Brazing Cleaning Equipment 1. Make sure ladder rungs are sturdy and free of cracks. 2. Use ladders with secure safety feet. 3. Pitch ladders at a 4:1 ratio. 4. Secure ladders at the top when possible. 5. Do not use ladders for access to air stripper towers. 6. Use non-conductive ladders near electrical wires. 1. Smoke only in designated areas. 2. Keep flammable liquids in closed containers. 3. Keep site clean; avoid accumulating combustible debris such as paper. 4. Follow Hot Work Safety Procedures when welding or performing other activities requiring an open flame. 5. Isolate flammable and combustible materials from ignition sources. 6. Ensure fire safety integrity of equipment installations according to Hazard Classification Diagram (Appendix G). 1. Do not create static discharge in flammable atmospheres. 2. Electrically bond and ground pumps transfer vessels, tanks, drums, bailers and probes, when moving liquids. 3. Electrically bond and ground vacuum trucks and the tanks they are emptying. 4. Do not splash fill containers with flammable liquids. 1. Driller and helper must be present during all active operations. 2. Driller helper and other site personnel must know location of emergency shut off switch. 3. Unauthorized personnel must be kept clear of drilling rig. 4. Area of drilling operation must be cordoned off/barricaded. 5. When hazardous conditions are deemed present, operation must be shut down. 1. Wear appropriate PPE to avoid skin, eye, and inhalation contact with contaminated groundwater and/or soil. 2. Stand upwind when conducting tasks and minimize possible inhalation exposure; especially when first opening monitoring wells. 3. Conduct air monitoring to determine level of respiratory protection. 4. Utilize engineering controls such as portable venturi air movers to draw away or blow away chemical vapors. 1. Before conducting welding at a project site, contact the Project Manager.. 1. Wear appropriate PPE to avoid skin and eye contact with isopropyl alcohol, alconox, or other cleaning materials. 2. Stand upwind to minimize any potential inhalation exposure. 3. Dispose of spent cleaning solutions and rinses accordingly. First aid kit, emergency eye wash station, fire extinguisher, and absorbent pads will be located on-site in the vehicle or site remediation system. Health and Safety Plan Diesel Fuel Release; Greensboro, NC Page 10 March 2021 Signature Sheet All persons entering the work zone, or visiting the subject site for the purposes associated with the subject investigation(s), or activities associated with the subject investigation(s) are required to notify the HES representative on-site immediately upon arrival. All persons entering the work zone, or visiting the subject site for the purposes associated with the subject investigation(s), or activities associated with the subject investigation(s) are required to review appropriate health and safety procedures, and provide a signature documenting they have been properly briefed on health and safety policies and procedures to be followed while on-site. HES will not be responsible for personal injuries or death resulting from personal actions that are considered negligent, or that result from personal activities that are contrary to this health and safety plan. By my signature, I acknowledge that I have been briefed on site specific health and safety procedures, that I am familiar with said health and safety procedures, and that I will follow all indicated health and safety procedures while on-site. Name Signature APPENDIX C APPENDIX D Field S-1 3/10/21 0.5 3.2 ND 9.7 S-2 3/11/21 0.5 5.7 ND ND S-3 3/11/21 1 7.9 ND ND S-4 3/11/21 0.5 9.7 ND ND S-5 3/11/21 3 22.5 ND ND S-6 3/11/21 1 14.6 8.8 ND S-7 3/11/21 1 16.6 ND 17.3 S-8 3/11/21 1 13.2 ND ND S-9 3/11/21 1 15.2 ND ND S-10 3/11/21 0.5 3.9 ND ND S-11 3/11/21 0.5 11 ND ND S-12 3/11/21 0.5 10 ND ND S-13 3/11/21 0.5 15.7 ND ND 50 100 Notes:"ND" Denotes not detected. mg/Kg denotes "miligram per kilogram" Bold denotes concentration greater than State Action Limits. Soil Sample Number Analytical Method (e.g., VOC by EPA 8260B) Collection Date Collection Depth (ft. BGS) (Soil Samples) Table 1 First Call Environmental / Cheney Brothers, Inc. Exit 121 off Interstate 85 Southbound; Greensboro, North Carolina HES Project #340036 Summary of Analytical Data NCDEQ State Action Limit (mg/Kg)PID Screening (ppm)Diesel Range Organics (mg/kg) 5035/8015 Gasoline Range Organics (mg/kg) Constituent of Concern APPENDIX E #=CL# March 18, 2021 LIMS USE: FR - MARK HELBERG LIMS OBJECT ID: 92527249 92527249 Project: Pace Project No.: RE: Mr. Mark Helberg First Call Environmental P.O. Box 6035 Ashland, VA 23005 WSNC0249 3/11 Dear Mr. Helberg: Enclosed are the analytical results for sample(s) received by the laboratory on March 11, 2021. 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, Chris Derouen christopher.derouen@pacelabs.com Project Manager (828)254-7176 Enclosures cc:Erica Boeckle, First Call Environmental Josh Dix, First Call Environmental Jonathan Fischer, First Call Environmental Taylor Hartman, First Call Environmental Taylor Kickler, First Call Environmetnal Brandon Martin, First Call Environmental Ann Novakowaski, Fisrt Call Environmental Will Parcel, First Call Environmental Julie Pittman, First Call Environmental Pat Procopio, First Call Environmental Dana White, First Call Environmental Mr. Wade Williams, First Call Environmental 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 28 #=CP# CERTIFICATIONS Pace Project No.: Project: 92527249 WSNC0249 3/11 Pace Analytical Services Charlotte 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 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 28 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92527249 WSNC0249 3/11 Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92527249001 S-1 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249002 S-2 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249003 S-3 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249004 S-4 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249005 S-5 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249006 S-6 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249007 S-7 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249008 S-8 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249009 S-9 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249010 S-10 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249011 S-11 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249012 S-12 EPA 8015C Modified 2 PASI-CSEM EPA 8015C Modified 2 PASI-CMAD SW-846 1 PASI-CKDF 92527249013 S-13 EPA 8015C Modified 2 PASI-CSEM 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 28 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92527249 WSNC0249 3/11 Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts EPA 8015C Modified 2 PASI-CMAD 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 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-1 Lab ID:92527249001 Collected:03/10/21 11:56 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)9.7 mg/kg 03/17/21 11:0403/13/21 13:475.6 1 Surrogates n-Pentacosane (S)65 %03/17/21 11:04 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/15/21 19:4703/15/21 10:547.1 1 Surrogates 4-Bromofluorobenzene (S)93 %03/15/21 19:47 460-00-403/15/21 10:5466-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 9.7 %03/12/21 15:19 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-2 Lab ID:92527249002 Collected:03/10/21 12:05 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/16/21 23:3203/13/21 13:475.5 1 Surrogates n-Pentacosane (S)72 %03/16/21 23:32 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/15/21 20:1503/15/21 10:547.0 1 Surrogates 4-Bromofluorobenzene (S)91 %03/15/21 20:15 460-00-403/15/21 10:5466-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 9.3 %03/12/21 15:19 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-3 Lab ID:92527249003 Collected:03/10/21 12:08 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/16/21 23:5603/13/21 13:475.7 1 Surrogates n-Pentacosane (S)74 %03/16/21 23:56 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/15/21 20:4403/15/21 10:546.2 1 Surrogates 4-Bromofluorobenzene (S)90 %03/15/21 20:44 460-00-403/15/21 10:5466-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 10.8 %03/12/21 15:19 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-4 Lab ID:92527249004 Collected:03/10/21 12:12 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/16/21 23:5603/13/21 13:475.4 1 Surrogates n-Pentacosane (S)68 %03/16/21 23:56 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/15/21 21:1203/15/21 10:547.6 1 Surrogates 4-Bromofluorobenzene (S)93 %03/15/21 21:12 460-00-403/15/21 10:5466-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 7.5 %03/12/21 15:19 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-5 Lab ID:92527249005 Collected:03/10/21 12:18 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/17/21 00:2003/13/21 13:475.7 1 Surrogates n-Pentacosane (S)76 %03/17/21 00:20 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/15/21 23:0403/15/21 10:547.2 1 Surrogates 4-Bromofluorobenzene (S)91 %03/15/21 23:04 460-00-403/15/21 10:5466-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 11.9 %03/12/21 15:19 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-6 Lab ID:92527249006 Collected:03/10/21 12:24 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/17/21 00:2003/13/21 13:475.5 1 Surrogates n-Pentacosane (S)61 %03/17/21 00:20 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)8.8 mg/kg 03/15/21 23:3203/15/21 10:546.9 1 Surrogates 4-Bromofluorobenzene (S)108 %03/15/21 23:32 460-00-403/15/21 10:5466-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 7.8 %03/12/21 15:19 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-7 Lab ID:92527249007 Collected:03/10/21 12:30 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)17.3 mg/kg 03/17/21 11:0403/13/21 13:475.6 1 Surrogates n-Pentacosane (S)70 %03/17/21 11:04 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/16/21 14:2503/16/21 13:2210.9 1 Surrogates 4-Bromofluorobenzene (S)89 %03/16/21 14:25 460-00-403/16/21 13:2266-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 9.8 %03/12/21 15:19 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-8 Lab ID:92527249008 Collected:03/10/21 12:35 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/17/21 00:4403/13/21 13:475.6 1 Surrogates n-Pentacosane (S)55 %03/17/21 00:44 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/16/21 00:2903/15/21 10:545.4 1 Surrogates 4-Bromofluorobenzene (S)93 %03/16/21 00:29 460-00-403/15/21 10:5466-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 9.6 %03/12/21 15:19 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-9 Lab ID:92527249009 Collected:03/10/21 12:41 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/17/21 01:0803/13/21 13:475.7 1 Surrogates n-Pentacosane (S)55 %03/17/21 01:08 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/16/21 00:5703/15/21 10:546.7 1 Surrogates 4-Bromofluorobenzene (S)93 %03/16/21 00:57 460-00-403/15/21 10:5466-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 12.0 %03/12/21 15:20 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-10 Lab ID:92527249010 Collected:03/10/21 12:46 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/17/21 01:0803/13/21 13:475.5 1 Surrogates n-Pentacosane (S)44 %03/17/21 01:08 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/16/21 01:2503/15/21 10:549.0 1 Surrogates 4-Bromofluorobenzene (S)94 %03/16/21 01:25 460-00-403/15/21 10:5466-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 8.8 %03/12/21 15:20 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-11 Lab ID:92527249011 Collected:03/10/21 12:51 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/17/21 01:3203/13/21 13:475.7 1 Surrogates n-Pentacosane (S)42 %03/17/21 01:32 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/16/21 02:2103/15/21 11:477.7 1 Surrogates 4-Bromofluorobenzene (S)91 %03/16/21 02:21 460-00-403/15/21 11:4766-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 12.0 %03/12/21 15:20 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-12 Lab ID:92527249012 Collected:03/10/21 12:56 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/17/21 01:3203/13/21 13:475.5 1 Surrogates n-Pentacosane (S)62 %03/17/21 01:32 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/16/21 03:1803/15/21 11:477.7 1 Surrogates 4-Bromofluorobenzene (S)91 %03/16/21 03:18 460-00-403/15/21 11:4766-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 10.9 %03/12/21 15:21 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 28 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527249 WSNC0249 3/11 Sample:S-13 Lab ID:92527249013 Collected:03/10/21 13:01 Received:03/11/21 11:20 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 Modified Preparation Method: EPA 3546 Pace Analytical Services - Charlotte 8015 GCS THC-Diesel Diesel Range Organics(C10-C28)ND mg/kg 03/17/21 01:5603/13/21 13:475.5 1 Surrogates n-Pentacosane (S)55 %03/17/21 01:56 629-99-203/13/21 13:4732-130 1 Analytical Method: EPA 8015C Modified Preparation Method: EPA 5030B Pace Analytical Services - Charlotte Gasoline Range Organics Gas Range Organics (C6-C10)ND mg/kg 03/16/21 03:4603/15/21 11:476.5 1 Surrogates 4-Bromofluorobenzene (S)99 %03/16/21 03:46 460-00-403/15/21 11:4766-131 1 Analytical Method: SW-846 Pace Analytical Services - Charlotte Percent Moisture Percent Moisture 10.9 %03/12/21 15:21 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 28 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527249 WSNC0249 3/11 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: 606552 EPA 5030B EPA 8015C Modified Gasoline Range Organics Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92527249001, 92527249002, 92527249003, 92527249004, 92527249005, 92527249006, 92527249008, 92527249009, 92527249010 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3195564 Associated Lab Samples:92527249001, 92527249002, 92527249003, 92527249004, 92527249005, 92527249006, 92527249008, 92527249009, 92527249010 Matrix:Solid Analyzed Gas Range Organics (C6-C10)mg/kg ND 6.0 03/15/21 13:41 4-Bromofluorobenzene (S)%92 66-131 03/15/21 13:41 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3195565LABORATORY CONTROL SAMPLE: LCSSpike Gas Range Organics (C6-C10)mg/kg 50.050.2 100 70-130 4-Bromofluorobenzene (S)%94 66-131 Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 3195567MATRIX SPIKE SAMPLE: MSSpike Result 92527155005 Gas Range Organics (C6-C10)mg/kg 113116 96 70-145ND 4-Bromofluorobenzene (S)%92 66-131 Parameter Units Dup Result QualifiersRPDResult 92527453002 3195566SAMPLE DUPLICATE: Gas Range Organics (C6-C10)mg/kg NDND 4-Bromofluorobenzene (S)%8988 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 28 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527249 WSNC0249 3/11 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: 606581 EPA 5030B EPA 8015C Modified Gasoline Range Organics Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92527249011, 92527249012, 92527249013 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3195736 Associated Lab Samples:92527249011, 92527249012, 92527249013 Matrix:Solid Analyzed Gas Range Organics (C6-C10)mg/kg ND 6.0 03/15/21 14:09 4-Bromofluorobenzene (S)%90 66-131 03/15/21 14:09 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3195737LABORATORY CONTROL SAMPLE: LCSSpike Gas Range Organics (C6-C10)mg/kg 47.350.2 94 70-130 4-Bromofluorobenzene (S)%96 66-131 Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 3195739MATRIX SPIKE SAMPLE: MSSpike Result 92527249012 Gas Range Organics (C6-C10)mg/kg 61.763.8 95 70-145ND 4-Bromofluorobenzene (S)%94 66-131 Parameter Units Dup Result QualifiersRPDResult 92527249011 3195738SAMPLE DUPLICATE: Gas Range Organics (C6-C10)mg/kg NDND 4-Bromofluorobenzene (S)%9091 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 28 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527249 WSNC0249 3/11 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: 606898 EPA 5030B EPA 8015C Modified Gasoline Range Organics Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92527249007 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3197337 Associated Lab Samples:92527249007 Matrix:Solid Analyzed Gas Range Organics (C6-C10)mg/kg ND 6.0 03/16/21 13:29 4-Bromofluorobenzene (S)%93 66-131 03/16/21 13:29 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3197338LABORATORY CONTROL SAMPLE: LCSSpike Gas Range Organics (C6-C10)mg/kg 48.450.1 97 70-130 4-Bromofluorobenzene (S)%95 66-131 Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 3197340MATRIX SPIKE SAMPLE: MSSpike Result 92527330005 Gas Range Organics (C6-C10)mg/kg 82.470.4 115 70-145ND 4-Bromofluorobenzene (S)%101 66-131 Parameter Units Dup Result QualifiersRPDResult 92527249007 3197339SAMPLE DUPLICATE: Gas Range Organics (C6-C10)mg/kg NDND 4-Bromofluorobenzene (S)%8989 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 28 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527249 WSNC0249 3/11 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: 606463 EPA 3546 EPA 8015C Modified 8015 Solid GCSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92527249001, 92527249002, 92527249003, 92527249004, 92527249005, 92527249006, 92527249007, 92527249008, 92527249009, 92527249010, 92527249011, 92527249012, 92527249013 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3195203 Associated Lab Samples:92527249001, 92527249002, 92527249003, 92527249004, 92527249005, 92527249006, 92527249007, 92527249008, 92527249009, 92527249010, 92527249011, 92527249012, 92527249013 Matrix:Solid Analyzed Diesel Range Organics(C10-C28)mg/kg ND 5.0 03/16/21 21:56 n-Pentacosane (S)%73 32-130 03/16/21 21:56 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3195204LABORATORY CONTROL SAMPLE: LCSSpike Diesel Range Organics(C10-C28)mg/kg 45.367.3 67 47-130 n-Pentacosane (S)%75 32-130 Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 3195205MATRIX SPIKE SAMPLE: MSSpike Result 92527013004 Diesel Range Organics(C10-C28)mg/kg 50.679.7 62 10-133ND n-Pentacosane (S)%76 32-130 Parameter Units Dup Result QualifiersRPDResult 92527013005 3195206SAMPLE DUPLICATE: Diesel Range Organics(C10-C28)mg/kg NDND n-Pentacosane (S)%7975 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 28 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527249 WSNC0249 3/11 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: 606351 SW-846 SW-846 Dry Weight/Percent Moisture Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92527249001, 92527249002, 92527249003, 92527249004, 92527249005, 92527249006, 92527249007, 92527249008, 92527249009, 92527249010, 92527249011, 92527249012, 92527249013 Parameter Units Dup Result QualifiersRPDResult 92527453001 3194444SAMPLE DUPLICATE: Percent Moisture %25.8 N2424.7 Parameter Units Dup Result QualifiersRPDResult 92527445003 3194445SAMPLE DUPLICATE: Percent Moisture %21.8 N2322.4 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 28 #=QL# QUALIFIERS Pace Project No.: Project: 92527249 WSNC0249 3/11 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 EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS 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 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 28 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92527249 WSNC0249 3/11 Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92527249001 606463 606915S-1 EPA 3546 EPA 8015C Modified 92527249002 606463 606915S-2 EPA 3546 EPA 8015C Modified 92527249003 606463 606915S-3 EPA 3546 EPA 8015C Modified 92527249004 606463 606915S-4 EPA 3546 EPA 8015C Modified 92527249005 606463 606915S-5 EPA 3546 EPA 8015C Modified 92527249006 606463 606915S-6 EPA 3546 EPA 8015C Modified 92527249007 606463 606915S-7 EPA 3546 EPA 8015C Modified 92527249008 606463 606915S-8 EPA 3546 EPA 8015C Modified 92527249009 606463 606915S-9 EPA 3546 EPA 8015C Modified 92527249010 606463 606915S-10 EPA 3546 EPA 8015C Modified 92527249011 606463 606915S-11 EPA 3546 EPA 8015C Modified 92527249012 606463 606915S-12 EPA 3546 EPA 8015C Modified 92527249013 606463 606915S-13 EPA 3546 EPA 8015C Modified 92527249001 606552 606585S-1 EPA 5030B EPA 8015C Modified 92527249002 606552 606585S-2 EPA 5030B EPA 8015C Modified 92527249003 606552 606585S-3 EPA 5030B EPA 8015C Modified 92527249004 606552 606585S-4 EPA 5030B EPA 8015C Modified 92527249005 606552 606585S-5 EPA 5030B EPA 8015C Modified 92527249006 606552 606585S-6 EPA 5030B EPA 8015C Modified 92527249007 606898 606914S-7 EPA 5030B EPA 8015C Modified 92527249008 606552 606585S-8 EPA 5030B EPA 8015C Modified 92527249009 606552 606585S-9 EPA 5030B EPA 8015C Modified 92527249010 606552 606585S-10 EPA 5030B EPA 8015C Modified 92527249011 606581 606651S-11 EPA 5030B EPA 8015C Modified 92527249012 606581 606651S-12 EPA 5030B EPA 8015C Modified 92527249013 606581 606651S-13 EPA 5030B EPA 8015C Modified 92527249001 606351S-1 SW-846 92527249002 606351S-2 SW-846 92527249003 606351S-3 SW-846 92527249004 606351S-4 SW-846 92527249005 606351S-5 SW-846 92527249006 606351S-6 SW-846 92527249007 606351S-7 SW-846 92527249008 606351S-8 SW-846 92527249009 606351S-9 SW-846 92527249010 606351S-10 SW-846 92527249011 606351S-11 SW-846 92527249012 606351S-12 SW-846 92527249013 606351S-13 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: 03/18/2021 03:57 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 28 Page 25 of 28 Page 26 of 28 Page 27 of 28 Page 28 of 28 APPENDIX F Photograph Number 1: Location of the incident. Photo taken on the day of the incident (1/21/2021). Photograph Number 2: The extent of the spill release on the day of the incident. Diesel fuel impacted the drainage ditch downgradient of the incident site. Photograph Number 3: Photo taken during initial response activities (1/21/2021). Photograph Number 4: Hydrocarbon booms placed at the Southwest end of impacted area on I- 85 S. Impacted soil covered in plastic pending excavation activities (1/21/2021). Photograph Number 5: Photo of the guard railing removal prior to excavation activities (03/10/2021). Photograph Number 6: All impacted sorbents were containerized into 55-gallon steel drums. Photograph Number 7: Photo of impacted soil and stormwater drainage ditch, Photo taken on the day of excavation activities (03/10/2021). Photograph Number 8: Photo of impacted drainage ditch prior to excavation activities. Photograph Number 8: Photo of impacted drainage ditch during excavation activities. Photograph Number 9: Photo of excavation activities near the bridge column. Photograph Number 9: Photo of excavation activities near the bridge column. Photograph Number 10: Photo of excavation activities. Photograph Number 12: Photo of backfill being placed after remediation activities. Photograph Number 13: Excavated area, seeded and covered with straw matting post remedial activities.