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Home My WebLink About09011 Arrow Laundry Cleaners Drum Removal Rpt 20170331 DRUM REMOVAL REPORT SHADE VALLEY ROAD CHARLOTTE, NORTH CAROLINA ECS PROJECT NO. 49-3925 PREPARED FOR OAKHURST TOWN HOME LOTS, LLC 136 MAIN STREET PINEVILLE, NORTH CAROLINA 28134 MARCH 31, 2017 March 31, 2017 Ms. Susan Rosenblatt Oakhurst Town Home Lots, LLC 136 Main Street Pineville, North Carolina, 28134 Reference: Drum Removal Report Oakhurst Site Shade Valley Road Charlotte, North Carolina ECS Project No. 49-3925 Dear Ms. Rosenblatt: ECS Southeast, LLP (ECS) is pleased to provide you with our Drum Removal Report that documents the removal of impacted soil associated with a previous drum spill. Environmental services were provided in general accordance with the ECS Work Authorization No. 49-4366 Rev2. ECS appreciates the opportunity to provide our environmental consulting services to you on this project. If you have any questions concerning this report or this project, please contact ECS. Respectfully submitted, ECS SOUTHEAST, LLP Christopher D. Orrell John M. Stewart, P.G., CPG Environmental Scientist Chief Geologist Correll@ecslimited.com jstewart1@ecslimited.com 704-525-5152 336-856-7150 Drum Removal Report Shade Valley Road Charlotte, North Carolina ECS Project No. 49-3925 March 31, 2017 TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY ................................................................................................. 1 2.0 SOIL SCREENING AND EXCAVATION PROCEDURES ............................................... 4 3.0 RESULTS ........................................................................................................................ 4 4.0 CONCLUSIONS .............................................................................................................. 5 5.0 RECOMMENDATIONS ................................................................................................... 5 6.0 QUALIFICATIONS ........................................................................................................... 5 FIGURES Figure 1 Site Location Map Figure 2 Sample Location Map TABLES Table 1 Summary of Soil Analytical Results APPENDICES Appendix A Laboratory Data Sheets and Chain of Custody Records Appendix B Non-Hazardous Waste Disposal Manifests Appendix C Photographic Log Drum Removal Report Shade Valley Road Charlotte, North Carolina ECS Project No. 49-3925 March 31, 2017 1 1.0 EXECUTIVE SUMMARY The subject site is located off Shade Valley Road in Charlotte, Mecklenburg County, North Carolina. According to the Mecklenburg County GIS website, the site consists of approximately 11.3 acres identified as Mecklenburg County Parcel Identification Number 16105208. During site redevelopment activities, a damaged drum containing an oily liquid was uncovered amidst buried building debris (i.e. tar roofing/shingles). A sample of the drum contents was collected on February 6, 2017 for disposal purposes. On March 2, 2017, ECS observed the excavation and removal of the damaged drum and impacted soils/building debris to a depth of approximately two feet below the ground surface (bgs). Approximately five tons of petroleum-impacted soils were removed from the excavation and transported off-site for disposal. Due to the drum being surrounded by roofing tar and shingles, ECS personnel collected a sample of the nearest available soil to the base of the excavation. Laboratory analysis of the soil sample collected at the base of the excavation detected various semi-volatile organic compounds (SVOCs) at levels above their respective Industrial/Commercial Health Based Preliminary Soil Remediation Goals. The drum was located within buried construction debris consisting of rolled tar roofing and shingles. ECS attributes the elevated concentrations of the constituents detected (i.e. Benzo(a)anthracene, Benzo(a)pyrene, Benzo(b)fluoranthene, Bezno(g,h,i)perylene, Benzo(k)fluoranthene, Chrysene, Dibenzo(a,h)anthracene, Dibenzofuran, Ideno(1,2,3-cd)pyrene, and Naphtlane) to the presence of roofing tar and asphalt shingles. The building debris is being removed and disposed of at a construction debris landfill. A. OWNERSHIP OF PROPERTY: Oakhurst Town Home Lots, LLC 136 Main Street Pineville, North Carolina 28134 B. FACILITY INFORMATION: Shade Valley Road Charlotte, Mecklenburg County, North Carolina Latitude: 35° 11’ 40.19” N Longitude: 80° 46’ 47.95” W (From Google Earth) C. CONTACTS: Primary Contact: Ms. Susan Rosenblatt Oakhurst Town Home Lots, LLC 136 Main Street Pineville, North Carolina 28134 Excavation Contractor: ADC Sitework Marvin Garcia General Superintendent (980) 230-3725 Drum Removal Report Shade Valley Road Charlotte, North Carolina ECS Project No. 49-3925 March 31, 2017 2 Soil Disposal Contractor Contaminant Control Inc. (CCI) 281 Lane Parkway Salisbury, North Carolina 28146 Primary Consultant: ECS Southeast, LLP 1812 Center Park Drive, Suite D Concord, North Carolina 28217 (704) 525-5152 Laboratory: Prism Laboratories, Inc. 48 Springbrook Road Concord, North Carolina 28078 D. SITE CHARACTERISTICS: The subject site is located off Shade Valley Road in Charlotte, Mecklenburg County, North Carolina. According to the Mecklenburg County GIS website, the site consists of approximately 11.3 acres identified as Mecklenburg County Parcel Identification Number 16105208. As determined from the USGS Topographic Map Charlotte East, North Carolina Quadrangle (Figure 1), the site’s elevation is approximately 750 feet above mean sea level (msl). Surface runoff on the site is generally to the east towards an unnamed tributary of Edwards Branch According to the Geologic Map of North Carolina (1985), the subject property is situated in the Charlotte Belt of the Piedmont Physiographic Province with the underlying bedrock composed of granitic rock. The Piedmont Physiographic Province is characterized by gently rolling topography, deeply weathered bedrock, and a relative paucity of solid outcrop. Rocks are strongly weathered in the Piedmont's humid climate and bedrock is generally buried under a thick (2-20 m) blanket of saprolite. Outcrops are commonly restricted to stream valleys where saprolite has been removed by erosion. The soils encountered in this area are the residual product of in-place chemical weathering of rock presently underlying the site. In general, shallow unconfined groundwater movement within the overlying soils is controlled largely by topographic gradients. However, as the groundwater percolates downward to the bedrock, it becomes controlled by the orientation of the rock fracture systems. Thus, the direction of groundwater movement may not be consistent with the reflecting topography. In the Piedmont Physiographic region, groundwater generally occurs under water table conditions. Movement of groundwater under water table conditions is generally from higher to lower elevations. Please note that fluctuations in the groundwater level can be expected depending on variations in precipitation, run-off, and other factors not evident at the time of subsurface exploration. Normally, the highest groundwater levels occur in late winter and spring and the lowest levels occur in the late summer and fall. Groundwater was not encountered during excavation. Drum Removal Report Shade Valley Road Charlotte, North Carolina ECS Project No. 49-3925 March 31, 2017 4 2.0 SOIL SCREENING, AND EXCAVATION PROCEDURES ECS Southeast, LLP (ECS) was notified on February 6, 2017 that liquid, presumed to be oil, was observed while removing buried construction debris consisting of roofing tar and shingles during grading operations at the site. ECS personnel mobilized to the site on February 2, 2017 to observe the area and identify the source of the liquid. While onsite, ECS identified that the source of the liquid was a damaged 55-gallon drum and collected a sample of the contents for disposal purposes. The sampler, wearing new nitrile gloves placed the sludge into laboratory- supplied sample containers which were shipped to Prism Laboratory under chain-of-custody protocol. Because the source of drummed liquid was unknown, the sample was analyzed for total petroleum hydrocarbons (TPH) diesel range and gasoline range organics (DRO/GRO) using EPA Method 8015C, volatile and semi-volatile organic compounds (VOCs/SVOCs) using EPA Methods 8260 and 8270, oil and grease using EPA Method 9017, and toxicity characteristic leaching procedure (TCLP) VOCs, SVOCs, and RCRA metals. The subsequent analysis determined the sludge was non-hazardous and petroleum based. Laboratory data sheets and chain-of-custody records for the sample is provided in Appendix A. The drum was covered with and placed on plastic to prevent cross contamination prior to disposal activities. On March 2, 2017, ECS mobilized to the site to observe the removal of the damaged drum and impacted soils surrounding the drum. ADC Sitework, the onsite contractor, excavated the drum and impacted soil and direct loaded the contents onto a truck provided by Contaminant Control , Inc (CCI). The soil was screened with a photo-ionization detector (PID) for relative levels of volatile organic vapors and checked for visual and olfactory evidence of contamination. Evidence of soil contamination including odors and elevated PID readings were identified. Impacted material was removed until the excavation reached a depth of approximately two feet bgs. Approximately five tons of petroleum-impacted soil was removed from the area and transported off-site for disposal. The soil was transported by CCI to Republic Services in Charlotte, North Carolina. The Non-Hazardous Waste Disposal Manifests (Petroleum Impacted Soil) are included in Appendix B. Following removal of the impacted soil, ECS personnel collected a soil sample from the base (S-1) of the excavation. The soil sample location is shown on Figure 2. The sampler, wearing new nitrile gloves for each sample, placed the soil into laboratory-supplied sample containers which were shipped to Prism Laboratory under chain-of-custody protocol. Laboratory data sheets and chain-of- custody records for the sample is provided in Appendix A. The soil samples were analyzed for VOCs and SVOCs using EPA Methods 8260 and 8270 respectively. Photographs of the area are provided in Appendix C. 3.0 RESULTS Laboratory analysis of the soil sample collected at the base of the excavation detected various semi-volatile organic compounds (SVOCs) at levels above their respective Industrial/Commercial Health Based Preliminary Soil Remediation Goals. The drum was located within buried construction debris consisting of rolled tar roofing paper, roofing tar, and asphalt shingles. The results are summarized in Table 1. Drum Removal Report Shade Valley Road Charlotte, North Carolina ECS Project No. 49-3925 March 31, 2017 5 4.0 CONCLUSIONS A damaged drum containing an oil based liquid was discovered during redevelopment activities at a site off of Shade Valley Road in Charlotte, North Carolina. ECS observed the removal of the drum and the excavation of approximately five tons of impacted soil and roofing material from the area for offsite disposal. Post excavation sample analysis detected various SVOCs at levels above the Residential and Industrial/Commercial Health Based PSRGs. ECS attributes the elevated concentrations of the constituents detected (i.e. Benzo(a)anthracene, Benzo(a)pyrene, Benzo(b)fluoranthene, Bezno(g,h,i)perylene, Benzo(k)fluoranthene, Chrysene, Dibenzo(a,h)anthracene, Dibenzofuran, Ideno(1,2,3-cd)pyrene, and Naphtlane) to the presence of roofing tar and asphalt shingles. 5.0 RECOMMENDATIONS ECS recommends that a copy of this report be submitted to the North Carolina Department of Environmental Quality (NCDEQ) – Mooresville Regional Office (MRO), Brownfields Section for their review. The remaining material, asphalt shingles, roofing paper and roofing tar, should be properly disposed at an approved disposal facility. 6.0 QUALIFICATIONS The activities and evaluative approaches used in this assessment are consistent with those normally employed in assessments and remediation projects for surface discharges of petroleum compounds. ECS’ evaluation of site conditions has been based on our understanding of the project information and the data obtained during our field activities. This report is provided for the use of Oakhurst Town Home Lofts, LLC and the NCDEQ. This report is not intended to be used or relied upon in connection with other projects or by other unidentified third parties. The use of this report by undesignated third party or parties will be at such party’s sole risk and ECS disclaims liability for such third party use or reliance. FIGURES FIGURE 1 SITE LOCATION MAP OAKHURST SITE SHADE VALLEY ROAD CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-3925 SOURCE: USGS TOPOGRAPHIC MAP: CHARLOTTE EAST, DATED 2016 NORTH CAROLINA QUADRANGLE SCALE: 1” = 2,000’ SITE LEGEND SOURCE: GOOGLE EARTH 2015 AERIAL PHOTOGRAPH (VIA THE INTERNET) SCALE AS SHOWN FIGURE 2 SAMPLE LOCATION MAP OAKHURST SITE SHADE VALLEY ROAD CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-3925 APPROXIMATE LOCATION OF SOIL SAMPLE S-1 Drum Location TABLES Parameter ANALYTICAL RESULTS Sample ID S-1 Collection Date 3/2/17 Sample Depth 2ft Semivolatile Organic Compounds by GC/MS 1-Methylnaphthalene 5.7 0.055 18 73 2-Methylnaphthalene 9.8 1.6 48 600 3/4-Methylphenol 0.66J --12.6 164 Acenapthene 23 8.4 720 9,000 Anthracene 37 660 3,6000 46,000 Benzo(a)anthracene 83 0.18 0.16 2.9 Benzo(a)pyrene 66 0.059 0.016 0.29 Benzo(b)fluoranthene 90 0.60 0.16 2.9 Benzo(g,h,i)perylene 32 7,800 -- -- Benzo(k)fluoranthene 26 5.9 1.6 29 Chrysene 76 18 16 290 Dibenzo(a,h)anthracene 9.3 0.19 0.016 0.29 Dibenzofuran 20 5.2 14.6 200 Fluoranthene 180 330 480 6,000 Fluorene 27 56 480 6,000 Ideno(1,2,3-cd)pyrene 37 2.0 0.16 2.9 Naphthalene 36 0.21 3.8 17 Phenanthrene 170 68 ---- Pyrene 140 220 360 4,600 Volatile Organic Compounds by GC/MS 1,2,4-Trimethylbenzene 0.0042J 6.7 11.6 48 1,3,5-Trimethlybenzene 0.0028J 6.7 156 182 Acetone 0.054J 24 12,200 100,000 Notes: PSRG - Preliminary Soil Remediation Goal Results presented in milligrams per kilogram (mg/kg), analogous to parts per million (ppm) BRL = Compound not detected at a concentration above the method reporting limit Bold denotes a concentration above the Protection of Groundwater PSRG Underline denotes a concentration above the Unrestricted Use Health Based PSRG Italics denotes a concentration above the Industrial/Commercial Health Based PSRG Unrestricted Use Health Based PSRG Industrial/ Commercial Health Based PSRG TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTS OAKHURST SITE ECS PROJECT NO. 49-3925 CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA Protection of Groundwater PSRG COMPARISION CRITERIA APPENDICES Appendix A Page 1 of 18 Page 2 of 18 Page 3 of 18 Page 4 of 18 Page 5 of 18 Page 6 of 18 Page 7 of 18 Page 8 of 18 Page 9 of 18 Page 10 of 18 Page 11 of 18 Page 12 of 18 Page 13 of 18 Page 14 of 18 Page 15 of 18 Page 16 of 18 Page 17 of 18 Page 18 of 18 Appendix B Appendix C PHOTOGRAPH LOG OAKHURST SITE SHADE VALLEY ROAD CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-3925 Photo 1: View of the soil bank where the drum was located and surrounded by construction debris. Photo 2 View of the damaged drum.