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Home My WebLink About17038 Goodyear -WP Soil & Soil Gas 20171206 SOIL AND SOIL GAS SAMPLING WORK PLAN FORMER GOODYEAR SERVICE CENTER 100 & 122 EAST STONEWALL STREET AND 615 SOUTH TRYON STREET CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA BROWNFIELDS PROJECT ID. 17038-13-060 ECS PROJECT NO. 49.5350 PREPARED FOR CRESCENT SOUTH TRYON, LLC December 6, 2017 Soil and Soil Gas Sampling Work Plan Former Goodyear Service Center 100 and 122 East Stonewall Street & 615 South Tryon Street Charlotte, Mecklenburg County, North Carolina ECS Project No. 49-5350 December 6, 2017 1 TABLE OF CONTENTS 1.0 PROJECT INFORMATION ...................................................................................... 2 2.0 PREVIOUS INVESTIGATIONS ................................................................................ 2 3.0 PROPOSED DEVELOPMENT ................................................................................. 2 4.0 OBJECTIVE OF THE WORKPLAN .......................................................................... 2 5.0 SAMPLE COLLECTION ........................................................................................... 4 FIGURES Figure 1 Site Location Map Figure 2 Site Map Figure 3 Sample Location Map - 1 Figure 4 Sample Location Map - 2 Figure 5 Preliminary Site Development Plan Figure 6 Preliminary Site Development Plan with Sample Locations TABLES Table 1 Soil Sample Results Soil and Soil Gas Sampling Work Plan Former Goodyear Service Center 100 and 122 East Stonewall Street & 615 South Tryon Street Charlotte, Mecklenburg County, North Carolina ECS Project No. 49-5350 December 6, 2017 2 1.0 PROJECT INFORMATION The Site is currently comprised of three parcels identified as Mecklenburg Parcel ID Nos. 12512105, 12512103, and 12512102 located in Charlotte, Mecklenburg County, North Carolina. For purposes of this work plan, it also includes Parcel 12512101, which is currently being added to the Site through application to the NC Brownfields Program. Parcels 12512103 and 12512102 are currently owned by Crescent Resources LLC. Parcel 12512105 is owned by CLT Development Corp, and Parcel 12512101 is owned by Asana Partners Fund I TRS LLC. The four parcels together total approximately 3.5 acres. The site is currently developed with a parking lot, the Former Goodyear Service Center has recently been demolished, a 27,000 square foot office building, and a 45,000 square foot office building. Businesses located on the northern portion of the property where the Goodyear Service Center was formerly located operated as an automobile service center from the 1930s until the Goodyear Service Center was closed and demolished. The location of the Site is shown on Figures 1 and 2. 2.0 PREVIOUS INVESTIGATIONS ECS conducted a soil and groundwater assessment of the Former Goodyear Service Center property in October/November 2013. Assessment activities included collection of soil and groundwater samples to evaluate the extent of contamination identified in the previous assessments. The previous assessment was centered around the former Goodyear property located on the northeast corner of the site. The sample locations and summary of analysis are shown on Figures 3 and 4 and Table 1. 3.0 PROPOSED DEVELOPMENT The redevelopment is anticipated to include office, a hotel, ground floor retail, a courtyard, multi-level parking deck, and potentially multi-family residential (See Figure 5). No Structures will be located above the parking deck. 4.0 OBJECTIVE OF THE WORKPLAN The objective of this work plan is to determine if the previously detected tetrachloroethylene (PCE) in the groundwater is creating a vapor intrusion concern for those areas of the future site development that will be built slab on grade and to determine if the soil which has previously not been analyzed and will be excavated as part of the future site development is impacted with VOCs, SVOCs, and/or RCRA metals. The soil gas and soil sampling will be conducted in general accordance with the North Carolina Division of Waste Management’s (NCDWM) Vapor Intrusion Guidance (April 2014) and the NCDWM Inactive Hazardous Site Program’s Guidelines for Assessment and Cleanup (October 2015). Two of the buildings will have foot prints slab on grade and will cover the northwestern and southeastern portions of the site; therefore ECS is proposing to collect samples in the area for the proposed building pads to “forecast” worse case conditions that might develop under the proposed buildings. ECS is proposing to collect four exterior soil gas samples across the Soil and Soil Gas Sampling Work Plan Former Goodyear Service Center 100 and 122 East Stonewall Street & 615 South Tryon Street Charlotte, Mecklenburg County, North Carolina ECS Project No. 49-5350 December 6, 2017 3 northwestern portion of the site and one interior sub-slab and three exterior soil gas samples across the southeastern portion of the site (Figure 6). Access to the interior of the JDM building (southern-most building) is not possible at this time, so an exterior sample will be collected adjacent to the south side of the building. ECS is also proposing to collect soil samples in the areas of future redevelopment/soil disturbance where samples have not previously been collected (See Figure 5 redline area). The anticipated depth to top of partially weathered rock; i.e. residuum, is 15 to 20 feet. The accessible areas of the site will be separated into seven sections and four borings will be advanced in each section. Twenty-eight soil borings will be advanced to a depth of 15 to 17 feet or direct-push refusal/top of partially weathered rock. Samples will be collected from shallow depths (approximately 5 feet deep) and deeper depths in each boring (approximately 10 to 15 feet). As such, ECS will collect up to 56 grab soil samples for analysis of VOCs, two samples from each boring. Up to fourteen composite samples for SVOCs and total RCRA metals will be collected by compositing the shallow and deep soil samples from the borings in each of the seven quadrants. Owner and Developer’s Representative: Ms. Elizabeth A. McMillan Crescent South Tryon, LLC 227 West Trade Street, Suite 1000 Charlotte, North Carolina 28202 704-235-8946 EMcMillan@crescentcommunities.com Site Environmental Representative: Mr. John M. Stewart, P.G. ECS Southeast, LLP 4811 Koger Boulevard Greensboro, North Carolina 27407 336-856-7150 JStewart1@ecsliomited.com Reporting A report of the results of the sampling outlined in this work plan will be submitted to NCDWM- Brownfields Group. If unidentified and unexpected conditions are encountered during the assessment, Crescent South Tryon, LLC will be notified. The responsibility of notifying NCDWM and other external parties lies solely with Crescent South Tryon, LLC and/or with ECS acting on their behalf. The NCDEQ Brownfields Program (NCBP) contact is: Carolyn Minnich, Brownfields Project Manager Carolyn.Minnich@ncdenr.gov NCDEQ, DWM, NC Brownfields Program Phone: 704-661-0330 Soil and Soil Gas Sampling Work Plan Former Goodyear Service Center 100 and 122 East Stonewall Street & 615 South Tryon Street Charlotte, Mecklenburg County, North Carolina ECS Project No. 49-5350 December 6, 2017 4 Carolyn Minnich, the Brownfields Project Manager, will be notified 5 days prior to starting the field work. Deviation from Approved Plan This work plan is intended to be dynamic and to be adapted to specific and actual site conditions. Accordingly, should such conditions warrant a change either by addition, deletion or modification of a procedure, such may be accomplished with agreement between Crescent South Tryon, LLC’s representative and ECS after consultation with, and subject to approval by the NCBP. Such changes will comply with applicable local, State, and Federal rules and regulations. A written amendment shall be prepared and submitted to NCBP for approval (the use of e-mail correspondence shall suffice for approval, followed by a hard copy or electronic copy provided on Disk or similar media) prior to implementation. Amendments must have the approval of the NCBP prior to implementation. Amendments must have the approval of the NCBP prior to implementation of each amendment. 5.0 SAMPLE COLLECTION 5.1 Soil Gas Number and Sample Location Two portions of the site are proposed to have slab on grade buildings. The proposed slabs are anticipated to be close to the existing grade. Therefore, ECS is proposing to collect samples from four locations within proposed footprint of each retail space. Four exterior soil gas samples will be collected from a depth of 5 feet below grade on the northwest portion of the site. Three sub-slab soil gas samples will be collected from within the current structures on the southeast portion of the site along with one exterior soil gas sample. The approximate locations of the proposed samples are shown on Figure 6. Probe Placement and Sample Collection The exterior soil gas sample will be collected by driving a direct push sampler or using a hand auger to a minimum depth of 5 feet below the ground surface (bgs). The soil samples collected in the field will be screened a flame/photo-ionization detector (FID/PID). Once the boring has reached termination depth, dedicated Nylafow tubing and air stone will be lowered into the boring. Approximately one foot of clean coarse sand will placed around the air stone. A seal consisting of three feet of bentonite powder will be hydrated with distilled water. The soil gas probe will be allowed to stabilize for four hours before the soil gas sample is collected. The interior sub-slab vapor samples will be collected in by drilling a small hole through the concrete slab of the current onsite structure and installing Nylaflow tubing and air stone beneath the slab. Depending on the thickness of the slab in the sampling locations, sand will fill the boring to approximately two inches above the air stone and the boring will be filled with bentonite and hydrated. A dedicated syringe will be used at each sample location and connected to the tubing to purge Soil and Soil Gas Sampling Work Plan Former Goodyear Service Center 100 and 122 East Stonewall Street & 615 South Tryon Street Charlotte, Mecklenburg County, North Carolina ECS Project No. 49-5350 December 6, 2017 5 the tubing. Three volumes of the tubing will be purged prior to sample collection. Following purging, the tubing will be connected to a 400 ml Summa canister, which will be used to collect the sample. The Summa canister will be fitted with a flow regulator. The flow rate for both purging and sample collection will be 0.2 liters per minute. The pressure in the canister will be recorded before and after sample collection. Other parameters that will be measured include ambient temperature before and after sample collection and weather conditions at the time of sample collection. Prior to sample collection a shut-in test will be conducted to assess for leaks in the fittings and regulator. The probes will be removed and the holes filled cement grout following sample collection. Leak Detection Prior to collecting the soil and sub-slab vapor samples, laboratory grade helium gas will be used as a quality assurance control measure to confirm the integrity of the probe seal at each sample location. A plastic cylinder (approximately 1.75 quarts) will be placed and sealed over the sampling point and purged with laboratory grade helium. The probe point tubing and tracer gas tubing will be placed through the cylinder wall via rubber grommets. The cylinder will be placed on a 4-inch rubber gasket and held securely to the slab with a heavy weight. During the purging stage, the cylinder will be flooded with laboratory grade helium via the hose placed through the cylinder wall. A Model MGD-2002 Multi-Gas Leak detector or similar will be connected to the probe tube and the air stream being purged will be measured for helium. A helium concentration of less than five percent helium will be considered acceptable. If concentrations greater than five percent helium is measured, the probe tube seal will be reseated and the leak detection process will be repeated. Sample Analysis Following sample collection, the canisters will be labeled and maintained under chain-of-custody until delivered to H&P Mobile Geochemistry Inc. in Carlsbad, California. A Chain-of-Custody document will be utilized throughout the collection and transportation of the samples. Each sample will be analyzed for the full list of VOCs using EPA Method TO-15. The results will be reported below risk screening levels and J flags will be reported. Quality Control One duplicate sample will be collected and analyzed for the same compounds using EPA Method TO-15. 5.2 Soil Samples ECS will contract with a North Carolina licensed drilling contractor to drill the soil borings using direct push technology. The soil samples will be classified in the field by an ECS professional and screened for volatile organic vapors using a FID/PID. Visual signs of a release such as staining will also be noted and placed on the soil bore log. Samples will be collected from shallow ( 5 feet) and deep (between 10 and 15 feet) depths in each boring. As such, up to 56 grab samples will be analyzed for VOCs using EPA Method 8260. Up to fourteen composite samples will be Soil and Soil Gas Sampling Work Plan Former Goodyear Service Center 100 and 122 East Stonewall Street & 615 South Tryon Street Charlotte, Mecklenburg County, North Carolina ECS Project No. 49-5350 December 6, 2017 6 analyzed for SVOCs using EPA Method 8270 and total RCRA metals by EPA Methods 6010/7470/7471. Once the samples are collected, the drilling contractor will properly abandon the borings. Report ECS will prepare a written report documenting the field activities, sampling procedures, sample locations, laboratory procedures and results, and conclusions. Soil gas sampling field data, including leak testing and pressure readings, will be included in the report. FIGURES FIGURE 1 SITE LOCATION MAP FORMER GOODYEAR SERVICE CENTER SOUTH TRYON STREET & EAST STONEWALL STREET CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-5350 SOURCE: USGS TOPOGRAPHIC MAP: CHARLOTTE EAST, DATED 1967 PHOTOREVISED 1988 NORTH CAROLINA QUADRANGLE SCALE: 1” = 2,000’ SITE LEGEND 1 – Charlotte Observer 2 – Duke Energy Building 3 – Harvey B. Grant Building 4 – Charlotte Convention Center 5 – Westin Charlotte Hotel 6 – QSM Building – Multi-Tenant Office 7 – Interstate 277 – Historical Gasoline Station Based on Sanborns – Historical Auto Dealership Based on Sanborns SOURCE: GOOGLE EARTH 2012 AERIAL PHOTOGRAPH (VIA THE INTERNET) SCALE AS SHOWN FIGURE 2 SITE MAP FORMER GOODYEAR SERVICE CENTER SOUTH TRYON STREET & EAST STONEWALL STREET CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-5350 1 6 5 4 3 2 7 LEGEND – Monitoring Well – Soil Sample – Geotechnical Piezometer (sampled) SOURCE: GOOGLE EARTH 2012 AERIAL PHOTOGRAPH (VIA THE INTERNET) SCALE AS SHOWN FIGURE 3 SAMPLE LOCATION MAP - 1 FORMER GOODYEAR SERVICE CENTER SOUTH TRYON STREET & EAST STONEWALL STREET CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-5350 MW-1 B-1 B-206 B-305 Former Gasoline Service Station Former Automotive Dealership MW-2 (DRY) See Figure 4 for detail SOURCE: MECKLENBURG COUNTY GIS (POLARIS) SCALE AS SHOWN FIGURE 4 SAMPLE LOCATION MAP - 2 FORMER GOODYEAR SERVICE CENTER SOUTH TRYON STREET & EAST STONEWALL STREET CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-5350 Legend Soil Sample (No Lab Detections) / Groundwater Sample Soil Sample (No Lab Detections) Soil Sample with Metal contamination only Soil Sample with VOC and/or BN contamination and/or metals Office Existing Monitoring Well TW-1 TW-2 GP-1 GP-2 GP-3 GP-4 GP-1 GP-3 GP-2 GP-4 GP-8 GP-5 GP-6 GP-7 GP-12 GP-11 GP-10 GP-9 GP-13 GP-14 SOURCE: MECKLENBURG COUNTY GIS (POLARIS) SCALE AS SHOWN FIGURE 5 PRELIMINARY SITE DEVELOPMENT PLAN FORMER GOODYEAR SERVICE CENTER SOUTH TRYON STREET & EAST STONEWALL STREET CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-5350 BELOW GROUND PARKING – EXCAVATION AREA PROPOSED SLAB-ON-GRADE PROPOSED SLAB- ON-GRADE SOURCE: MECKLENBURG COUNTY GIS (POLARIS) SCALE AS SHOWN FIGURE 6 PRELIMINARY SITE DEVELOPMENT PLAN WITH SAMPLE LOCATIONS FORMER GOODYEAR SERVICE CENTER SOUTH TRYON STREET & EAST STONEWALL STREET CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-5350 Soil Sampling Area Soil Sampling Location Soil-Gas Sampling Location Sub-Slab Vapor Sampling Location Yellow border represents slab on grade Blue border represents area to excavated 1 2 3 4 5 6 7 SB4-S SB6-S/D SB7-S/D SB1-S/D SB3-S/D SB5-S/D SB2-S/D SG-1 SG-2 SG-3 SG-4 SG-5 SG-6 SG-8 SG-7 GP-1 GP-2 TABLE TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTSTryon Place East Stonewall Street, Charlotte, North Carolina Parameter Sample ID GP-1 GP-2 GP-3 GP-4 GP-5 GP-6 GP-7 GP-8 GP-9 Collection Depth (feet bgs)12 8 12 12 8 8 16 12 8 Collection Date 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 Total Metals Arsenic 4.4 2.0 3.0 3.0 4.0 11 5.7 3.7 2.0 5.8 0.68 - Barium 81 26 20 40 45 440 97 39 49 290 3100 81000 Cadmium BRL BRL BRL BRL BRL 0.70 BRL BRL BRL 14 -- Chromium 75 7.0 6.1 8.8 16 39 24 24 40 4,200 23,460 613,200 Chromium VI BRL 6.87 BRL BRL BRL BRL BRL BRL BRL 5.4 47 1226 Lead 2.9 3.3 4.1 18 5.9 440 43 5.6 6.5 270 400 400 Mercury BRL BRL BRL BRL BRL 0.44 0.22 0.15 BRL 1.9 -- Polychlorinated Biphenyls (PCBs) by GC/ECD Total PCBs BRL BRL BRL BRL BRL BRL BRL BRL BRL --- Semivolatile Organic Compounds by GC/MS 1-Methylnaphthalene BRL BRL BRL BRL BRL 0.15 J BRL BRL 0.12 J 0.004 20 100 2-Methylnaphthalene BRL BRL BRL BRL BRL 0.17 J BRL BRL BRL 3.6 63 1635 Acenaphthylene BRL BRL BRL BRL BRL 0.34 J BRL BRL BRL 11 469 12264 Anthracene BRL BRL BRL BRL BRL 0.99 BRL BRL BRL 940 4600 122000 Benzo(a)anthracene BRL BRL BRL BRL BRL 3.7 0.28 J BRL BRL 0.18 0.15 8 Benzo(a)pyrene BRL BRL BRL BRL BRL 3.7 0.30 J BRL BRL 0.059 0.015 0.78 Benzo(b)fluoranthene BRL BRL BRL BRL BRL 4.2 0.38 J BRL BRL 1.2 0.88 8 Benzo(g,h,i)perylene BRL BRL BRL BRL BRL 3.0 0.31 J BRL BRL 6400 469 12264 Benzo(k)fluoranthene BRL BRL BRL BRL BRL 2.6 0.24 J BRL BRL 5.9 1.5 78 Chrysene BRL BRL BRL BRL BRL 4.7 0.44 BRL BRL 18 15 780 Dibenzo(a,h)anthracen BRL BRL BRL BRL BRL 0.98 BRL BRL BRL 0.19 0.015 0.78 Dibenzofuran BRL BRL BRL BRL BRL 0.16 J BRL BRL BRL 4.7 62 1635 Fluoranthene BRL BRL BRL BRL BRL 6.9 0.51 BRL BRL 290 620 16400 Fluorene BRL BRL BRL BRL BRL 0.26 J BRL BRL BRL 47 620 16400 Indeno(1,2,3-cd)pyrene BRL BRL BRL BRL BRL 3.1 0.29 J BRL BRL 2 0.15 8 Phenanthrene BRL BRL BRL BRL BRL 5.3 0.30 J BRL BRL 56 469 12264 Pyrene BRL BRL BRL BRL BRL 9.2 0.55 BRL BRL 270 469 12264 Commercial MSCC (mg/kg) Comparison CriteriaANALYTICAL RESULTS Soil-to- Groundwater MSCC or PSRG (mg/kg) Residential MSCC or PSRG (mg/kg) Goodyear Interior TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTSTryon Place East Stonewall Street, Charlotte, North Carolina Parameter Sample ID GP-1 GP-2 GP-3 GP-4 GP-5 GP-6 GP-7 GP-8 GP-9 Collection Depth (feet bgs)12 8 12 12 8 8 16 12 8 Collection Date 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 Commercial MSCC (mg/kg) Comparison CriteriaANALYTICAL RESULTS Soil-to- Groundwater MSCC or PSRG (mg/kg) Residential MSCC or PSRG (mg/kg) Goodyear Interior Volatile Organic Compounds by GC/MS 1,2,4-Trichlorobenzene BRL BRL BRL BRL BRL BRL BRL BRL 0.18 2.6 156 4088 1,2,4-Trimethylbenzene BRL BRL BRL BRL BRL BRL BRL BRL 2.5 8.5 782 20440 1,2-Dichlorobenzene BRL BRL BRL BRL BRL BRL BRL BRL 0.075 J 0.23 1400 36000 1,3,5-Trimethylbenzene BRL BRL BRL BRL BRL BRL BRL BRL 0.84 8.3 782 20440 4-Isopropyltoluene BRL BRL BRL BRL BRL BRL BRL BRL 0.35 0.12 100 4,000 Acetone BRL BRL 0.029 J BRL 0.083 0.11 0.14 0.047 BRL 24 14000 360000 Benzene BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.0056 18 164 Ethylbenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL 4.9 1560 40000 m,p-Xylenes BRL BRL BRL BRL BRL BRL BRL BRL 0.093 J 4.6 3,129 81,760 Methyl-tert-Butyl Ether BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.091 340 3100 Naphthalene BRL BRL BRL BRL BRL BRL BRL BRL 0.84 0.16 313 8176 n-Butylbenzene BRL BRL BRL BRL BRL BRL BRL BRL 0.58 4.3 626 16350 n-Propylbenzene BRL BRL BRL BRL BRL BRL BRL BRL 0.21 1.7 626 16350 o-Xylene BRL BRL BRL BRL BRL BRL BRL BRL 0.12 J 4.6 3,129 81,760 sec-Butylbenzene BRL BRL BRL BRL BRL BRL BRL BRL 0.60 3.3 626 16350 tert-Butylbenzene BRL BRL BRL BRL BRL BRL BRL BRL 0.22 3.4 626 16350 Tetrachloroethylene BRL BRL BRL 0.0019 J 0.019 0.071 0.0037 J 0.015 BRL 0.0074 1.1 10 Toluene BRL BRL BRL BRL BRL BRL BRL BRL BRL 4.3 1200 32000 Trichloroethylene BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.019 4.6 120 Xylenes, total BRL BRL BRL BRL BRL BRL BRL BRL 0.21 J 4.6 3129 81760 Notes:Results presented in milligrams per kilogram (mg/kg), analogous to parts per million (ppm)Feet bgs = Feet below ground surfaceBRL = Compound not detected at a concentration above the method reporting limitMSCC = Maximum soil contaminant concentration Bold denotes concentration exceeds the State Action Level or Soil-to-Groundwater MSCC or BackgroundJ = Estimated concentration, below calibration range and above Method Detection LimitUnderline Results are result at dilutions greater than 1Only detected analytes, BTEX, MTBE, TCE and PCE shown.The standard for trivalent chromium used for total chromium, as recent sampling determined that the chromium present was trivalent, not hexavalent. TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTS Tryon Place East Stonewall Street, Charlotte, North Carolina Parameter Sample ID GP-10 GP-11 GP-12 GP-13 GP-14 Collection Depth (feet bgs)8 12 12 8 8 Collection Date 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 Total Metals Arsenic 3.3 2.2 3.2 7.6 4.3 5.8 0.68 - Barium 88 42 57 71 30 290 3100 81000 Cadmium BRL BRL BRL 0.42 0.35 14 -- Chromium 73 280 84 18 23 4,200 23,460 613,200 Chromium VI BRL BRL BRL BRL BRL 5.4 47 1226 Lead 18 3.1 33 130 23 270 400 400 Mercury 0.030 0.068 0.54 0.37 BRL 1.9 -- Polychlorinated Biphenyls (PCBs) by GC/ECD Total PCBs BRL BRL BRL BRL BRL --- Semivolatile Organic Compounds by GC/MS 1-Methylnaphthalene 3.4 1.0 BRL BRL BRL 0.004 20 100 2-Methylnaphthalene 6.1 1.6 0.21 J BRL BRL 3.6 63 1635 Acenaphthene BRL BRL BRL 0.11 J BRL 8.2 940 24000 Anthracene 0.20 J BRL BRL 0.63 BRL 940 4600 122000 Benzo(a)anthracene BRL BRL BRL 5.0 0.10 J 0.18 0.15 8 Benzo(a)pyrene BRL BRL BRL 5.6 0.13 J 0.059 0.015 0.78 Benzo(b)fluoranthene BRL BRL BRL 6.4 0.16 J 1.2 0.88 8 Benzo(g,h,i)perylene BRL 0.23 J BRL 4.4 0.19 J 6400 469 12264 Benzo(k)fluoranthene BRL BRL BRL 4.2 0.12 J 5.9 1.5 78 Commercial MSCC (mg/kg) Comparison CriteriaANALYTICAL RESULTS Soil-to- Groundwater PSRG or MSCC (mg/kg) Residential MSCC or PSRG (mg/kg) Goodyear Interior TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTS Tryon Place East Stonewall Street, Charlotte, North Carolina Parameter Sample ID GP-10 GP-11 GP-12 GP-13 GP-14 Collection Depth (feet bgs)8 12 12 8 8 Collection Date 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 Commercial MSCC (mg/kg) Comparison CriteriaANALYTICAL RESULTS Soil-to- Groundwater PSRG or MSCC (mg/kg) Residential MSCC or PSRG (mg/kg) Goodyear Interior Bis(2-Ethylhexyl)phthalate BRL 0.44 BRL 0.42 BRL 6.6 46 410 Chrysene BRL BRL BRL 7.1 0.17 J 18 15 780 Dibenzo(a,h)anthracene BRL BRL BRL 0.97 BRL 0.19 0.015 0.78 Fluoranthene 0.22 J BRL BRL 7.4 0.22 J 290 620 16400 Fluorene 0.21 J 0.098 J BRL 0.13 J BRL 47 620 16400 Indeno(1,2,3-cd)pyrene BRL BRL BRL 4.8 0.19 J 2 0.15 8 Naphthalene 3.9 0.77 0.17 J BRL BRL 0.16 313 8176 Phenanthrene 0.73 0.26 J 0.15 J 4.3 BRL 56 469 12264 Pyrene 1.5 0.49 BRL 7.3 0.27 J 270 469 12264 Volatile Organic Compounds by GC/MS (Medium Level) 1,2,4-Trichlorobenzene BRL 0.28 BRL BRL BRL 2.6 156 4088 1,2,4-Trimethylbenzene 1.9 5.3 BRL 0.080 BRL 8.5 782 20440 1,2-Dichlorobenzene BRL 0.13 J BRL BRL BRL 0.23 1400 36000 1,3,5-Trimethylbenzene 0.55 1.8 BRL 0.028 BRL 8.3 782 20440 4-Isopropyltoluene BRL 0.38 BRL BRL BRL 0.12 100 4,000 Acetone BRL BRL BRL 0.072 BRL 24 14000 360000 Benzene BRL BRL BRL BRL BRL 0.0056 18 164 Ethylbenzene 0.22 0.25 0.20 0.0069 BRL 4.9 1560 40000 Isopropylbenzene (Cumene)BRL 0.10 J BRL 0.0019 J BRL 1.7 1564 40880 TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTS Tryon Place East Stonewall Street, Charlotte, North Carolina Parameter Sample ID GP-10 GP-11 GP-12 GP-13 GP-14 Collection Depth (feet bgs)8 12 12 8 8 Collection Date 10/22/13 10/22/13 10/22/13 10/22/13 10/22/13 Commercial MSCC (mg/kg) Comparison CriteriaANALYTICAL RESULTS Soil-to- Groundwater PSRG or MSCC (mg/kg) Residential MSCC or PSRG (mg/kg) Goodyear Interior m,p-Xylenes 0.64 0.77 0.11 0.043 BRL 4.6 3,129 81,760 Methyl-tert-Butyl Ether BRL BRL BRL BRL BRL 0.091 340 3100 Naphthalene 1.0 3.0 BRL 0.0032 J BRL 0.16 313 8176 n-Butylbenzene 0.19 0.56 0.15 BRL BRL 4.3 626 16350 n-Propylbenzene 0.21 0.44 0.21 0.0079 BRL 1.7 626 16350 o-Xylene 0.090 J 0.46 0.20 0.014 BRL 4.6 3,129 81,760 sec-Butylbenzene 0.13 J 0.42 BRL BRL BRL 3.3 626 16350 tert-Butylbenzene BRL 0.12 J BRL BRL BRL 3.4 626 16350 Tetrachloroethylene BRL BRL BRL BRL BRL 0.0074 1.1 10 Toluene BRL BRL BRL 0.0018 J BRL 4.3 1200 32000 Trichloroethylene BRL BRL BRL BRL BRL 0.019 4.6 120 Xylenes, total BRL BRL BRL 0.057 BRL 4.6 3129 81760 Notes:Results presented in milligrams per kilogram (mg/kg), analogous to parts per million (ppm)Feet bgs = Feet below ground surface BRL = Compound not detected at a concentration above the method reporting limitMSCC = Maximum soil contaminant concentration Bold denotes concentration exceeds the State Action Level or Soil-to-Groundwater MSCC or Background J = Estimated concentration, below calibration range and above Method Detection LimitDRO = Diesel Range OrganicsUnderline Results are result at dilutions greater than 1Only detected analytes, BTEX, MTBE, TCE and PCE shown.Sample IDs are yellow on the Figure.The standard for trivalent chromium used for total chromium, as recent sampling determined that the chromium present was trivalent, not hexavalent.