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Home My WebLink AboutWI-96025_96872_CA_IAR_20230411 Environmental Consultants-Soil and Groundwater Specialists P.O. Box 1379, Huntersville, North Carolina 28070 Phone: (704) 237-4209 · www.lighthousetechcorp.com April 10, 2023 Mr. Bo Baker Arborcare Tree Management LLC 3819 Park Avenue Wilmington, North Carolina 28403 Re: Incident # 96872 Initial Assessment Report Arborcare Tree Management LLC–Diesel Fuel Spill November 21, 2022 2268 Burgaw Highway Jacksonville, North Carolina Onslow County Dear Mr. Baker In conjunction with cleanup efforts by Eastern Environmental Management, Inc. (EEM), Lighthouse Technical (Lighthouse) completed an initial assessment of the impact to soils for the release noted above. The results of the post excavation soil analyses are included with this report. If you have questions, please contact us at 704-237-4209. Sincerely, Lighthouse Technical, P.C. Steven B. Lucas, L.G. Environmental Geologist cc NCDEQ-Wilmington Regional Office 3 B. Site History and Impact On November 21, 2022, Arborcare Tree Management was using a woodchipper at the rear of the property located at 2268 Burgaw Highway in Jacksonville, North Carolina, when the piece of equipment began to burn. A spill of diesel fuel due to the fire. The exact amount of fuel spilled is unknown but is estimated at 10 to 20 gallons. The spilled fuel impacted the soil below woodchipper. The spill location is a residential property owned by the Robins family. No surface water was affected or noted nearby. Additional residential properties were noted near the spill location. No water supply wells were noted nearby, and no underground utilities were encountered during soil removal. Figures 1 and 2 illustrate the incident location. C. Initial Response and Abatement Action Arborcare Tree Management extinguished the fire with a fire extinguisher. No abatement action was conducted. D. Free Product Investigation The spilled fuel was absorbed by the soil below the equipment. No ongoing free product recovery was necessary. E. Surface Water and Groundwater Investigation There was no impact to surface water. The nearest surface water is an unnamed tributary to Southwest Creek located .32 miles west of the spill location. No groundwater collected in the excavation as soil removal took place. F. Excavation of Contaminated Soil EEM mobilized to the site on March 17, 2023, to remove the impacted soil. Lighthouse was on site to collect post excavation soil samples. There were two areas of excavation. The smaller was approximately 5 feet long and 3 feet wide. The larger was 10 feet long and 5 feet wide. Both excavations were 1.50 feet deep. After soil removal, two post excavation soil samples were collected using a decontaminated stainless steel hand auger. Each sample was placed in a laboratory supplied container and shipped to Red Lab, LLC of Wilmington, North Carolina where they were analyzed for Total Petroleum Hydrocarbon- Gasoline Range Organics (TPH-GRO) and Diesel Range Organics (TPH-DRO) using a QED UVF petroleum analyzer. The TPH results are shown on Table 1. The GRO results ranged from <0.65 mg/kg to >0.66 mg/kg. The DRO results ranged from <0.65 mg/kg to 0.65 mg/kg. The TPH GRO and DRO results were below the North Carolina Department of Environmental Quality (NCDEQ) action limits of 50 mg/kg and 100 mg/kg. The laboratory report from Red Lab is included as Appendix A. Figure 3 illustrates the location of the excavated area and the soil sample locations. 4 G. Solid and Liquid Waste Disposal EEM organized disposal of the impacted soil. The total amount of excavated soil was 5.15 tons. EEM transported the soil to Soil Resources, LLC located in Pinetops, North Carolina. Appendix B includes the waste disposal documentation provided by EEM. H. Conclusions The Arborcare Tree Management equipment fire resulted in a release of diesel fuel to soil in the back yard of the residence at 2268 Burgaw Highway in Jacksonville, North Carolina. No surface water was impacted. A contractor was mobilized to remove the impacted soil. The laboratory analysis results for the post excavation soil samples were below state TPH action levels. No groundwater was observed in the excavation. No water supply wells were noted near the spill area. We recommend closure for the incident. A copy of this report will be submitted to the Wilmington Regional office of the NCDEQ. They will evaluate the results of the assessment and respond accordingly. I. Report Limitations This report has been prepared by Lighthouse Technical, P.C. for the use of Arborcare Tree Management and the North Carolina Department of Environment Quality. The findings and technical interpretations included in this report are specific to the area of investigation. This assessment of subsurface conditions has been performed in accordance with generally accepted practices of assessing the subsurface for contaminants. The conclusions presented in this report are based on subsurface sampling performed at selected locations and depths. The data collected represents the conditions at the sample location, at the time of sample collection only. There may be conditions between borings or samples that differ from those presented in this report. Such conditions could not be predicted by this assessment. Lighthouse by virtue of providing the services described in this report, does not assume the responsibility of the person(s) in charge of the site, or otherwise undertake the responsibility for reporting to any Local, State, or Federal public agencies as required by law or otherwise to disclose, in a timely manner, unless so directed by the client, any information that may be necessary to prevent any danger to public health, safety, or the environment. No warranty expressed or implied is made by the preparation of this report. Table 1 UVF TPH-GRO (mg/kg) UVF TPH-DRO (mg/kg) 50 mg/kg 100 mg/kg S-1 3/17/2023 1.5 2.4 <0.66 <0.66 <0.66 S-2 3/17/2023 1.5 4.2 <0.65 <0.65 0.65 Notes: BTEX-benzene, toluene, ethylbenzene, xylene mg/kg-Milligrams per kilogram UVF-Ultraviolet Florescence PPM-Parts per million (mg/kg) TPH-GRO-Total Petroleum Hydrocarbon-Gasoline Range Organic TPH-DRO-Total Petroleum Hydrocarbon-Diesel Range Organic Jacksonville, North Carolina Summary of Soil Sample Laboratory Analysis Arbor Tree Management -Diesel Fuel Spill Sample ID Date Sampled Sample Depth (ft.) PID Reading (PPM)State Action Level Total BTEX (mg/kg) Figure 1 Arbor Tree Management Diesel Fuel Release 2268 Burgaw Highway Jacksonville, North Carolina Spill Location Figure 2 Arborcare Tree Management- Diesel Fuel Release 2268 Burgaw Highway Jacksonville, North Carolina Spill Location Technical,P.C.Environmental Consultants Soil and Groundwater Specialists Figure 3 Soil Sample Locations Arborcare Tree Management, LLC 2268 Burgaw Highway Jacksonville, North Carolina Lighthouse Diesel Fuel Spill Soil Sample Location S-2 (1) Scale Approximate 0 20 Feet Spill Location Coordinates 34.737738 N-77.514521 Wand Collection Depth (Ft) N S-1(1.50) S-2(1.50) Area of Impact Limits of Excavation Post Excavation Residence 2268 Burgaw Highway Mulched Area Ditch Line Grassed area Grassed area Hydrocarbon Analysis Results Client:LIGHTHOUSE TECH Samples taken Friday, March 17, 2023 Address:HUNTERSVILLE, NC Samples extracted Friday, March 17, 2023 Samples analysed Tuesday, March 21, 2023 Contact:STEVE LUCAS Operator TORI KELLY Project:#23014 2 U04049 Matrix Sample ID Dilution used BTEX (C6 - C9) GRO (C5 - C10) DRO (C10 - C35) TPH (C5 - C35) Total Aromatics (C10-C35) 16 EPA PAHs BaP HC Fingerprint Match % light % mid % heavy s S-1 26.3 <0.66 <0.66 <0.66 0.64 0.64 <0.21 <0.026 0 49.4 50.6 Residual HC,(BO) s S-2 26.0 <0.65 <0.65 0.65 0.65 0.56 <0.21 <0.026 0 50.3 49.7 Deg.PHC 54.4%,(FCM),(BO),(P) Initial Calibrator QC check OK Final FCM QC Check OK 105.2 % Results generated by a QED HC-1 analyser. Concentration values in mg/kg for soil samples and mg/L for water samples. Soil values are not corrected for moisture or stone content Fingerprints provide a tentative hydrocarbon identification. The abbreviations are:- FCM = Results calculated using Fundamental Calibration Mode : % = confidence for sample fingerprint match to library (SBS) or (LBS) = Site Specific or Library Background Subtraction applied to result : (PFM) = Poor Fingerprint Match : (T) = Turbid : (P) = Particulate present Ratios QED Hydrocarbon Fingerprints Project:#23014 Tuesday, March 21, 2023 1451 S-1 : Residual HC,(BO) 1566 S-2 : Deg.PHC 54.4%,(FCM),(BO),(P) Soil Resources, LLC Physical Address: Mailing Address: 402 Orchard Road PO Box 4005 Pinetops, NC Rocky Mount, NC 27803 Office: 252-904-2457 Fax: 252-972-9940 Soil Resources, LLC is operating under the State of North Carolina Contaminated Soil Disposal Permit # SR-0002, hereby acknowledges the receipt of 5.15 tons of soil contaminated with petroleum hydrocarbons and will properly execute the disposal of this soil in the prescribed manner set forth by the North Carolina Department of Environment and Natural Resources, Division of Waste Management, and in accordance with the requirements of SR-0002. CCoommppaannyy:: ARBORCARE TREE MANAGEMENT LLC 256 Hardison Road Holly Ridge, NC 28445 GGeenneerraattoorr:: ARBORCARE TREE MANAGEMENT LLC 256 Hardison Road Holly Ridge, NC 28445 TTrraannssppoorrtteerr:: Eastern Environmental Management PO Box 4030 Rocky Mount, NC 27803 DDaattee((ss)) RReecceeiivveedd:: 03/20/23 (E-13611) SSooiill RReessoouurrcceess,, LLLLCC By: Cathy C. Baines