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HomeMy WebLinkAbout17056_VaporIntrusionAssessmentReport_May2019 Prepared for North Carolina Department of Environmental Quality Division of Waste Management Superfund Section 217 West Jones Street Raleigh, North Carolina 27603 VAPOR INTRUSION INVESTIGATION REPORT CROMPTON AND KNOWLES SITE LOWELL, NORTH CAROLINA Prepared by 1300 Mint Street, Suite 300 Charlotte, North Carolina 28203 Project Number GC6521 May 2019 Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/CK VI Assessment Report i 05.2019 TABLE OF CONTENTS 1. INTRODUCTION ................................................................................................ 1  1.1 Terms of Reference ..................................................................................... 1  1.2 Investigation Objectives .............................................................................. 1  1.3 Report Organization .................................................................................... 1  2. SITE ASSESSMENT ........................................................................................... 2  2.1 Overview ..................................................................................................... 2  2.2 HVS Testing Apparatus ............................................................................... 3  2.3 Methodology for HVS Screening and Sampling ......................................... 3  2.4 HVS Pneumatic Testing .............................................................................. 5  2.5 Analytical Methods and Quality Assurance/Quality Control ...................... 5  2.5.1 Calibration of Field Analytical Equipment .................................... 6  2.5.2 Quality Assurance Sampling .......................................................... 6  2.5.3 Sample Documentation .................................................................. 6  2.5.4 Leak Checks ................................................................................... 7  2.5.5 Field Forms ..................................................................................... 7  2.5.6 Data Usability ................................................................................. 7  3. RESULTS ............................................................................................................. 8  3.1 PID and LFG Screening throughout HVS Testing ...................................... 8  3.2 Summa® Canister Sample Analyses by USEPA Method TO-15................. 9  3.3 Pneumatic Testing ..................................................................................... 10  3.4 Quality Assurance/Quality Control ........................................................... 11  4. CONCLUSIONS AND RECOMMENDATIONS ............................................. 12  5. REFERENCES ................................................................................................... 13  Vapor Intrusion Investigation Report Crompton and Knowles Site TABLE OF CONTENTS (Continued) GC6521/ VI Assessment Report ii 05.2019 LIST OF TABLES Table 1 High Volume Sampling PID and LFG Screening Results Table 2 Summary of High Volume Sampling Analytical Results Table 3 High Volume Sampling Specific Capacity Measurements Table 4 Measured Vacuum at Communication Test Points LIST OF FIGURES Figure 1 Site Location Map Figure 2 Site Features Figure 3 High Volume Sampling Analytical Results: TO-15 Detected Compounds Figure 4 High Purge Volume Test Assembly LIST OF APPENDICES Appendix A Calibration Logs Appendix B Field Sampling Forms Appendix C PID Readings with Volume Extracted Appendix D Laboratory Analytical Reports Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/CK VI Assessment Report i 05.2019 ACRONYMS AND ABBREVIATIONS COC Chain of Custody Csg Target Sub-Slab and Near-Source Soil Gas Concentration CSM Conceptual Site Model DQO Data Quality Objective DWM Division of Waste Management HVS High Volume Sampling LFG Landfill Gas NCDEQ North Carolina Department of Environmental Quality NELAP National Environmental Laboratory Accreditation Program PID photoionization detector QA/QC Quality Assurance/Quality Control RPD Relative Percent Difference scfm Standard Cubic Feet per Minute SESD Science and Ecosystem Support Division SGSL Soil Gas Screening Level USEPA United States Environmental Protection Agency VI Vapor Intrusion VISL Vapor Intrusion Screening Level VOCs Volatile Organic Compounds Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 1 05.2019 1. INTRODUCTION 1.1 Terms of Reference Geosyntec Consultants, of NC, PC (Geosyntec) has prepared this Vapor Intrusion Investigation Report (VI Report) for the Crompton and Knowles Site (“Site”), located at 1602 North Main Street in Lowell, Gaston County, North Carolina (Figure 1). This VI Report describes the investigation objectives, field procedures, analytical results, and quality assurance/quality control (QA/QC) associated with the initial vapor intrusion assessment as laid out in the Site Assessment Work Plan (Geosyntec, 2018). Results of this investigation will supplement existing data and support the development a robust conceptual site model (CSM) and, ultimately, a path towards Site closure. 1.2 Investigation Objectives The objective of the vapor intrusion (VI) assessment activities is to evaluate the potential for completed VI pathways to exist from volatile organic compounds (VOC) vapors into select Site buildings that may pose an unacceptable risk to Site workers or future occupants. Though as many as 25 buildings/structures remain on-Site (Figure 2), Geosyntec understands that only two are planned to remain as part of tentative site development, therefore this assessment focused on those two buildings (Buildings 2 and 3A). 1.3 Report Organization The remainder of this VI Report is organized as follows:  Section 2 – Site Assessment - presents the approach and procedures for VI assessment activities;  Section 3 – Results - presents the results of the VI assessment activities;  Section 4 – Conclusions and Recommendations – presents the conclusions from the VI assessment activities and recommended path forward;  Section 5 - References - provides a list of documents used during the preparation of this VI Report. Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 2 05.2019 2. SITE ASSESSMENT 2.1 Overview This section summarizes the methods and procedures used to conduct the initial VI Site assessment. Figure 3 presents the locations of sub-slab sampling probes included in this investigation. The procedures and rationale for this VI investigation are described in the Site Assessment Work Plan (Geosyntec, 2018). The Crompton and Knowles Site consists of an inactive textile dye manufacturing facility which operated from 1958 through 2004. The potential for VI was evaluated at two buildings, which the Site-owner has indicated may remain in place during general Site demolition. Within the Crompton and Knowles facility, these two buildings are understood by Geosyntec to be the only ones not slated for demolition. High volume sampling (HVS) is a technique for assessment of sub-slab vapor VOC concentrations and the pneumatic properties of the foundation slab and sub-surface materials (McAlary et al., 2010). HVS testing provides data for assessing sub-slab conditions and the likelihood of VI, including vacuum measurements that can be used for mitigation system design, if needed. VOC vapor concentrations (through photoionization detector [PID] readings) can be compared to volume removed and used to interpret the presence and geometry of potentially-significant subsurface VOC sources. Another key benefit to this approach is that VOC vapors are drawn from a relatively large radial distance around each sampling location, which reduces the risk of failing to identify areas of elevated concentrations that may exist between or beyond accessible sampling locations. The dimensions of the subsurface volume tested depend on the permeability of the sub-slab material, the power of the fan, the duration of the test, and the potential presence of subsurface zones of higher or lower permeability (preferential pathways or barriers). HVS typically draws soil gas from the uppermost foot of soils, providing radial characterization of sub-surface properties over large areas in a short period compared with traditional sub-slab soil gas sampling. HVS was used to assess the occurrence and distribution of VOCs and/or petroleum hydrocarbons in vadose zone soils beneath Buildings 2 and 3A (Figure 3), which are planned to remain as part of tentative Site redevelopment. Two sampling locations in Building 2 (HVS-01 and HVS-02), and four sampling locations in Building 3A (HVS-03 through HVS-06) were selected to maximize coverage of each building (Figure 3). The goal at each location was to draw as much gas Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 3 05.2019 from the subsurface as practical within a reasonable amount of time (nominally 90 minutes). 2.2 HVS Testing Apparatus HVS testing was performed 16 – 18 October 2018. Each test was performed for approximately 90 minutes. At each HVS sampling location, a hole of approximately four inches in diameter was cored through the concrete slab. The core holes penetrated the floor slab into the underlying granular fill (HVS-02) or slightly into the native materials if no granular fill was present (HVS-01, HVS-03 through HVS-06). The apparatus used to perform the HVS testing is shown in Figure 4. The various components include:  A 6.5-horsepower shop vacuum to generate high flow rates;  A 2-inch diameter PVC sub-slab probe connected to a manifold consisting of a sample port and vacuum gauge;  A 5-ft section of 2-inch diameter PVC pipe between the suction point and the vacuum to provide a near-linear flow regime including a velocity monitoring point for measurement of the extracted gas velocity with a thermal anemometer;  A bleed valve to regulate the amount of the vacuum applied to the extraction point;  A sampling port for use in collecting Summa® samples, and another for use in sampling with a lung-box and a 1-L TedlarTM bag, both located downstream of the suction point and upstream of the dilution valve;  A vacuum gauge at the wellhead for monitoring wellhead vacuum; and  A Mylar discharge line extending outside of the building. Communication test points, approximately ½ inch in diameter, were drilled through the slab at 3, 10 and 30 feet radially away from each sub-slab probe. An additional communication point was installed 10 feet away from HVS-01 to evaluate the propagation of vacuum across a floor trench. 2.3 Methodology for HVS Screening and Sampling HVS sampling consisted of purging at a consistent flow rate from the sub-slab extraction location and monitoring the concentration of extracted VOC vapors as a function of volume purged. Two types of soil gas tests were performed as part of the HVS program: Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 4 05.2019 1) field screening with a RAE Systems ppbRAE 3000 PID and a Landtec GEM 2000 Landfill Gas (LFG) Monitor, and; 2) laboratory testing for VOCs following United States Environmental Protection Agency (USEPA) Method TO-15. Throughout HVS testing, slip-stream samples of the extracted soil gas were collected using a lung box and 1-liter (L) Tedlar™ bags for field screening. The samples were field screened with the PID to characterize the trend of total VOC concentrations as a function of the volume of gas extracted. Analyzing concentration trends from samples collected throughout the HVS test allows for assessment of whether concentrations of VOCs remain constant, diminish or increase with distance from the extraction point. If the VOC vapor concentration increases during the test, this indicates that the point of extraction is not centered over the areas of highest sub-slab vapor concentrations. If the VOC vapor concentrations gradually decrease, this either indicates: 1) vapor concentrations generally decrease with distance from the extraction point, or 2) that leakage may be responsible for the decrease in concentration via dilution. If the VOC vapor concentrations remain stable and leakage is minimal, this indicates that sub-slab VOC vapor concentrations are relatively uniform over the area influenced by the test. Field screening was also performed for O2, CO2, and CH4 with the LFG meter. Aerobic biodegradation of organic matter (including natural humic and fulvic acids, petroleum hydrocarbons, and vinyl chloride which may be present in the subsurface) consumes O2 and generates CO2 and CH4. The concentration trends of these parameters as a function of the volume of gas purged during the HVS test can be used to assess the permeability of the floor slab. Summa® canister grab samples were collected over a 5-minute interval at the beginning and at the end of each HVS test using batch certified, 1-L canisters supplied by SGS North America Inc. of Dayton, NJ. Special considerations for soil gas sampling as outlined in USEPA Science and Ecosystem Support Division (SESD) Soil Gas Sampling guidance was followed to the extent applicable. Collection of one duplicate sample for data quality purposes was performed by using a tee-fitting to collect both samples at the same time. The duplicate was submitted to the laboratory as a blind sample to assess laboratory reproducibility. The analysis of Summa® canister grab samples by USEPA Method TO-15 for VOCs provides quantitative information regarding the presence and concentration of individual VOCs. It can also provide a basis for using the PID screening results to infer the Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 5 05.2019 approximate concentrations of the specific VOCs throughout the HVS test period, based on the relative proportions of individual VOCs and their response factors on the PID. Following sampling, boreholes were abandoned using concrete. 2.4 HVS Pneumatic Testing In addition to soil gas testing, pneumatic testing was conducted throughout and after each HVS test to assess the physical properties of the sub-slab environment. Extracted vapor velocity was measured from a velocity monitoring point on the HVS manifold and applied vacuum was measured from a vacuum gauge on the manifold. Steady-state vacuum of the surrounding area was measured at three or more communication test points near each HVS location. Specific capacity is the ratio of flow to applied vacuum, which tends to be nearly constant over a wide range because it is controlled by the permeability of the material providing fluid to the extraction pipe. The flow rate was monitored periodically throughout the HVS test with a Dwyer 471 hand held thermal anemometer. The velocity was multiplied by the cross-sectional area of the inside of the pipe and normalized to standard and actual temperature and pressure to obtain a flow rate in standard cubic feet per minute (scfm). Vacuum measurements in inches of water column (in H2O) were made throughout the duration of the HVS testing with a Dwyer Magnehelic vacuum gauge on the HVS manifold head. The ratio of the flow divided by the applied vacuum (in units of scfm/in H2O) is the specific capacity. A GrayWolf AdvancedSense digital micro-manometer was used to monitor drawdown (vacuum) at the communication test points and assess the total area influenced or radius achieved. Communication test point data was recorded after the vacuum levels stabilized during the HVS test. 2.5 Analytical Methods and Quality Assurance/Quality Control Sub-slab vapor samples were analyzed for VOCs using USEPA Method TO-15 with a reporting limit less than the applicable North Carolina Department of Environmental Quality (NCDEQ) Division of Waste Management (DWM) VI Screening Levels where possible. The following sections describe the procedures employed for QA/QC purposes. The field procedures, including those related to sample collection, sample containers, sample preservation, equipment decontamination, and field measurement procedures are Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 6 05.2019 in general accordance with the USEPA Region 4 SESD Field Branches Quality System and Technical Procedures 1. 2.5.1 Calibration of Field Analytical Equipment Instruments and equipment used during field sampling and analysis were operated and maintained according to the manufacturer’s guidelines and recommendations. Operation, calibration, and maintenance were performed by trained personnel prior to use. Calibration or calibration checks of the PID units were performed at the beginning of each sampling day. Maintenance and calibration information was documented, and is provided in Appendix A. 2.5.2 Quality Assurance Sampling Quality assurance sampling was conducted to provide sufficient evidence that analytical results are within acceptable limits for precision. Duplicate samples were collected to enable an assessment of reproducibility. During HVS testing, split Summa® samples were collected to acquire duplicates by connecting two (2) canisters to a manifold. The Data Quality Objective (DQO) for precision is a relative percent difference (RPD) between results of duplicate samples that is within thirty percent (30%) for all analytes. 2.5.3 Sample Documentation Each Summa® sample was checked for initial and final vacuum with a vacuum gauge and the vacuum measurements were recorded on the Summa® tag attached to the can, on the field forms, and on the Chain-of Custody (COC) for the laboratory. The sampling times, final vacuum, and specific test requested were also recorded on all three documents prior to shipment to the laboratory. Upon arrival of a shipment of canisters in the field, the shipment was checked for completeness and integrity. Summa® canisters were clearly labelled by the laboratory and completed by the field sampling team upon completion of the test. After sample collection, samples were shipped under COC procedures to provide an accurate written record of the possession of samples from the time of collection through data analysis and reporting. The analyses were conducted by SGS North America Inc., a National Environmental Laboratory Accreditation Program (NELAP) accredited laboratories. 1 https://www.epa.gov/quality/quality-system-and-technical-procedures-sesd-field-branches Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 7 05.2019 2.5.4 Leak Checks Visual and aural leak detection at extraction probes was conducted during HVS testing. A smoke pen was also used at select locations to test for leaks. 2.5.5 Field Forms Field data were recorded on designated field sheets by field staff. Completeness checks of the forms were performed during the work and prior to demobilizing from the Site. Handwritten forms are provided in Appendix B. 2.5.6 Data Usability Field and laboratory activities were evaluated for conformance with the Site Assessment Work Plan. That evaluation included a review of the field and laboratory procedures and associated forms. Verification and validation were based on completeness and compliance checks of sample receipt conditions and QC results. Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 8 05.2019 3. RESULTS The following sections describe the results of the VI investigation activities. Field screening was performed throughout the HVS tests, and sampling for laboratory analysis was performed near the beginning and end of each test. Velocity and applied vacuum were recorded at the suction point. At communication test points nearby, steady-state vacuum was measured once during each test. 3.1 PID and LFG Screening throughout HVS Testing HVS PID and LFG meter screening results are summarized in Table 1 and HVS locations are displayed on Figure 3. Field forms with the full datasets are included in Appendix B and graphs of PID readings with purged volume are in Appendix C. PID readings from the HVS tests were generally low (less than one part per million [ppm]) at all but HVS-02. PID readings from the HVS tests were consistent throughout the test in three of the six locations. At HVS-02, HVS-03, and HVS-04, PID readings decreased throughout the HVS test, though only varied by less than 1 ppm. LFG meter readings of O2, CO2, and CH4 were generally consistent throughout each test at all six test locations with concentrations varying less than 5%. Methane was not detected at any of the locations. At HVS-01, carbon dioxide concentrations generally decreased slightly throughout the test. At HVS-02 and HVS-06 carbon dioxide concentrations were stable within 0.3% throughout the test. At HVS-03 carbon dioxide generally increased throughout the test, from a minimum of 0.8% to a maximum of 3.1%. Carbon dioxide first increased slightly then stabilized at HVS-04 and HVS-05. The overall low concentrations of carbon dioxide and methane suggest that no aerobically degradable source of dissolved carbon exists beneath Buildings 2 or 3. With the exception of HVS-02, oxygen was slightly reduced and carbon dioxide was slightly enriched compared with typical atmospheric concentrations, and measured concentrations did not change substantially during testing which indicates that the floor slab is a substantial barrier between the indoor air and sub-slab gas in the vicinity of Buildings 2 and 3 test locations. At HVS-02, gas concentrations were near atmospheric concentrations and PID concentrations were very slightly elevated but did not indicate significant VOC sources beneath the slab in soil or at the water table. Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 9 05.2019 3.2 Summa® Canister Sample Analyses by USEPA Method TO-15 The analytical laboratory results of the HVS samples are summarized in Table 2 and Figure 3, and the associated laboratory analytical reports are included in Appendix D. For comparison, Table 2 includes two columns of screening values. These include the NCDEQ Sub-Slab and Exterior Soil Gas Screening Level (SGSL) for a non-residential scenario (NCDEQ, 2018) and the Target Sub-Slab and Near-Source Soil Gas Concentration (Csg) calculated for a commercial exposure scenario by multiplying the indoor air screening level by a sub-slab attenuation factor using the USEPA Vapor Intrusion Screening Level (VISL) calculator. Table 2 also includes the reporting limits achieved for the laboratory analyses of VOCs by USEPA Method TO-15. The reporting limits are lower than the SGSLs, which demonstrates that the analytical method has adequate sensitivity for comparison to SGSLs. However, reporting limits are higher than the Csg for 1,2-dibromoethane. The analytical data shows that VOC concentrations were above Csg screening levels in two HVS locations (one in the former laboratory and one in the former warehouse) for bromodichloromethane, chloroform, and/or 1,2-dibromoethane. No samples had concentrations above the SGSLs. Other VOCs detected were at concentrations lower than the SGSL and Csg screening levels. PCE and TCE were below screening levels in all samples and cis-1,2-DCE, 1,2-dichloroethane, and vinyl chloride were not detected in any of the samples. A summary of exceedances is included below:  Bromodichloromethane exceeded the Csg of 11 micrograms per cubic meter (µg/m3) with a concentration of 12 µg/m3 at the end of the test at HVS-02. The concentration at the beginning of the test was 5.7 µg/m3 and neither concentration exceeded the SGSL of 300 µg/m3.  Chloroform concentrations exceeded the Csg of 18 µg/m3 at HVS-02 at both the beginning (68.9 µg/m3) and end (81.1 µg/m3) of the test but did not exceed the SGSL of 53 µg/m3.  1,2-Dibromoethane concentrations exceeded the Csg of 1 µg/m3 but not the SGSL of 20 µg/m3 at the beginning of the test at HVS-03 with a concentration of 6.8 µg/m3. The concentration at the end of the test was below the reporting limit of 6.1 µg/m3. Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 10 05.2019 The sample collected at the end of the test for HVS-02 had higher concentrations than the initial sample. This may indicate an area of higher concentration within range, but not directly beneath the test point. The results of laboratory analysis make sense in comparison with PID field screening. Generally low concentrations of VOCs corresponded to low response on the PID. 3.3 Pneumatic Testing The flow and wellhead vacuum data for each HVS test are summarized in Table 3 and the steady state vacuum data measured at each of the communication test points are presented in Table 4. Field sheets with full datasets are presented in Appendix B. The flow rates were in the range of 2.5 to 11.9 scfm, which is lower than typical values for HVS tests. Most buildings have compacted gravel below the floor slab that is highly permeable and provides flor rates of 50 to 200 scfm. Furthermore, the gravel layer is generally about 6-inches thick, which creates a relatively thin permeable region from which gas is extracted and this scenario results in flow to the suction point from fairly large radial distances (50 to 100 ft) over the duration of the test. The material below the Crompton and Knowles Site floor slabs was generally clay without gravel, which is likely native or reworked soil and is less permeable than typical granular aggregate. Only location HVS-02 had a gravel sub-base. As a result, flow to the extraction point is likely to have originated from the entire thickness of the vadose zone rather than from a typical 6-inch gravel layer and the radius from which gas was extracted during each HVS test was correspondingly smaller than initially planned. Based on the average flow rate, at least 10,000 L of gas was extracted from below the floor slabs and characterized at each of the 6 HVS test locations (Table 3). Wellhead vacuum levels ranged from 6.0 to 22.0 in H2O (11.5 to 22.0 in H2O not including HVS-02). This corresponds to specific capacity values of 0.25 to 1.04 scfm/in H2O. This range is wide, indicating the material below the floor slab is not homogeneous. This was expected based on the unconsolidated geologic materials encountered during probe installation. The flow rates are lower than expected from similar tests performed at sites with compacted granular fill below the floor slab and are consistent with the observations of clay material removed during installation of the extraction points. The specific capacity is useful to estimate the flow rate that can be achieved from the pump- curve of other fans that might be used for remediation. Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 11 05.2019 Vacuum propagation was evaluated using steady-state vacuum data measured at each of the communication test points. There were differences in the magnitude of the induced vacuum between locations, which provides insight into the flow of gas below the floor slab. For example, HVS-05 had dramatically different vacuum levels from HVS-04 at the radial distance of 3-ft but very similar vacuum influence at a radial distance of 10-ft. At HVS-01 vacuum influence was detected at 10-ft to the South, but not at 10-feet to the southwest which was located on the other side of a floor trench. This may indicate that foundation components may act as a partial or substantial boundary beneath the building. Overall, the floor slabs appeared to be relatively competent. The pneumatic and LFG data indicates the slabs are not very leaky. This allows for a relatively large radius of influence from each suction point. 3.4 Quality Assurance/Quality Control Field and laboratory data were evaluated for conformance with the Site Assessment Work Plan, including a review of the field and laboratory procedures and associated forms. One duplicate air grab sample collected during HVS testing (DUP-AIR) showed detected compounds had concentrations within 30% RPD (the DQO for precision) with the exception of acetone, hexane, methylene chloride, methyl ethyl ketone, and methylmethacrylate. Verification and validation of laboratory data were based on completeness and compliance checks of sample receipt conditions, and both sample-related and instrument- related QC results. Data are considered complete and suitable for the project objectives. Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 12 05.2019 4. CONCLUSIONS AND RECOMMENDATIONS HVS testing resulted in three samples from two locations (one in the former laboratory and one in the former warehouse) having VOC concentrations above the baseline applied USEPA VISL screening levels. Concentrations were below SGSLs and do not likely represent significant vapor intrusion risk. The reach of HVS tests was limited because of the lower-than-expected permeability of the sub-slab materials. Pneumatic testing and LFG screening suggest that the floor slab is relatively competent with limited leakance. These results demonstrate that the subsurface soil gas is not likely leading to indoor air concentrations of VOCs above applicable screening levels at the two buildings evaluated at the Crompton and Knowles Site. Geosyntec found no evidence of vapor intrusion based on the limits of the testing, therefore no further assessment of the VI pathway is expected to be needed. Vapor Intrusion Investigation Report Crompton and Knowles Site GC6521/ VI Assessment Report 13 05.2019 5. REFERENCES Geosyntec Consultants, 2018. Site Assessment Work Plan: Crompton and Knowles Site, Lowell, North Carolina. Hart & Hickman, 2009. Brownfields Assessment Report Former Yorkshire Americas Facility (Western Plant Area). Submitted February 9. McAlary, T.A., Nicholson, P., Yik, L.K., Bertrand, D. and G. Thrupp, 2010. High Purge Volume Sampling - A New Paradigm for Sub-Slab Soil Gas Monitoring, Groundwater Monitoring and Remediation, V. 30, No. 2, pp 73–85, Spring 2010. NCDEQ. 2018. Non-Residential Vapor Intrusion Screening Levels. North Carolina Division of Environmental Quality, Division of Waste Management. TABLES Table 1High Volume Sampling PID and Landfill Gas Screening ResultsCrompton and Knowles SiteLowell, North CarolinaProbe ID Date General LocationMaximum PID Reading (ppm)PID Range (ppm)Maximum CH4 (%)Maximum CO2 (%)Minimum O2 (%)HVS-01 10/18/2018 Building 2 South 0.0 0.0 - 0.0 0.0 2.3 16.0HVS-02 10/16/2018 Building 2 North 0.7 0.3 - 1.3 0.0 0.2 20.9HVS-03 10/17/2018 Building 3 East 0.3 0.0 - 0.8 0.0 3.1 18.7HVS-04 10/17/2018 Building 3 South 0.0 0.0 - 0.1 0.0 2.3 18.0HVS-05 10/17/2018 Building 3 North 0.0 0.0 - 0.0 0.0 2.7 19.2HVS-06 10/17/2018 Building 3 West 0.0 0.0 - 0.0 0.0 2.7 19.5Notes:ppm - parts per million% - percent by volumePID - photoionization detectorCH4 - methaneCO2 - carbon dioxideO2 - oxygenGoesyntec Consultants of NC, PCPage 1 of 1May 2019 Table 2Summary of High Volume Sampling Analytical ResultsCrompton and Knowles SiteLowell, North CarolinaBeginning End Beginning End BeginningEnd Beginning DUP End Beginning EndBeginning EndAcetone 1.90E+07 4.51E+06µg/m313 7.1 37.3 22 46.3 14 24.2 12 15 14 14 20 16 1,3-Butadiene 1.80E+02 1.40E+01µg/m31.8 U 1.8 U 1.8 U 1.8 U2.4 0.93 J1.8 U 1.8 U 1.8 U 1.8 U 1.8 U 1.8 U 1.8 UBenzene 1.60E+03 5.20E+01µg/m35.4 2.6 U2.7 1.4 J 13 6.7 7.7 6.7 4.2 3.8 3.8 2.6 U4.2 Bromodichloromethane 3.30E+02 1.10E+01µg/m35.4 U 5.4 U5.7 12 5.4 U 5.4 U 5.4 U 5.4 U 5.4 U 5.4 U 5.4 U 5.4 U 5.4 UCarbon disulfide 6.10E+04 1.02E+05µg/m32.5 U 2.5 U6.5 4.7 2.5 U 2.5 U 2.5 U 2.5 U 2.5 U 2.5 U 2.5 U 2.5 U 2.5 UChloroform 5.30E+02 1.80E+01µg/m33.9 U 3.9 U68.9 81.1 2.1 J 2.1 J 3 J 3.5 J 7.3 3.9 U 3.9 U 3.9 U 3.9 UChloromethane 7.90E+03 1.31E+04µg/m31.7 U 1.7 U1.4 J 1.9 0.97 J1.7 U 1.7 U 1.7 U 1.7 U0.87 J1.7 U 1.7 U2.3 Cyclohexane 8.80E+04 1.46E+05µg/m32.7 2.8 U 2.8 U 2.8 U2.9 1.4 J 2.5 J 2.3 J 1.8 J2.8 U 2.8 U 2.8 U 2.8 U1,2-Dibromoethane 2.00E+01 1.00E+00µg/m36.1 U6.1 U6.1 U6.1 U6.8 6.1 U6.1 U6.1 U6.1 U6.1 U6.1 U6.1 U6.1 UDichlorodifluoromethane8.80E+031.46E+04µg/m34 U 4 U2.1 J 2.3 J 2.1 J 2.1 J 2.8 J 2.9 J 2.8 J 2.9 J 2.9 J4 U 4 UEthanol NA NAµg/m310 6 11 12 20.7 15 20.7 22.4 13 18 11 10 4 Ethylbenzene 4.90E+03 1.64E+02µg/m33.5 U 3.5 U1.8 J3.5 U7.4 3 J 3.3 J 3.5 1.7 J 1.8 J3.5 U 3.5 U 3.5 UEthyl Acetate 6.10E+03 1.02E+04µg/m32.9 U 2.9 U5.4 48.9 20 5 4 4.7 4.7 2.6 J 4.3 2.9 U41.4 4-Ethyltoluene NA NAµg/m33.9 U 3.9 U 3.9 U 3.9 U4 3.9 U 3.9 U 3.9 U 3.9 U 3.9 U 3.9 U 3.9 U 3.9 UHeptane 3.50E+04 5.84E+04µg/m36.6 3.3 U 3.3 U 3.3 U8.2 4.1 6.1 7.4 4.9 3 J 4.1 3.3 U3.9 Hexane 6.10E+04 1.02E+05µg/m319 16 2.3 J 3.9 21 12 21 14 12 7 12 4.9 7.4 Isopropyl Alcohol NA NAµg/m32 U 2 U2.4 3.7 6.4 2 U 2 U3.4 2.7 2.1 2.7 6.1 2 UMethylene Chloride 5.30E+04 4.09E+04µg/m32.8 U53.8 2.9 10 2.8 U 2.8 U12 3.8 4.9 5.9 13 6.9 2.8 UMethyl ethyl ketone 4.40E+05 7.30E+05µg/m32.4 U 2.4 U41.9 11 21 1.7 J 5 3.8 3.5 2.5 2.5 2.4 2.4 UMethylmethacrylate NA NAµg/m33.3 U 3.3 U 3.3 U 3.3 U 3.3 U 3.3 U 3.3 U9.8 3.3 U 3.3 U 3.3 U15 3.3 UPropylene 2.60E+05 4.38E+05µg/m33.4 U 3.4 U16 7.2 9.6 4.1 3.1 J 4 1.2 J 1.7 J3.4 U 3.4 U 3.4 U1,1,1-Trichloroethane 4.40E+05 7.30E+05µg/m34.4 U 4.4 U 4.4 U 4.4 U 4.4 U1.7 J4.4 U 4.4 U 4.4 U 4.4 U 4.4 U 4.4 U 4.4 U1,2,4-Trimethylbenzene 5.30E+03 8.76E+03µg/m33.9 U 3.9 U2.9 J3.9 U22 3.8 J 3.1 J 3.5 J3.9 U 3.9 U 3.9 U 3.9 U 3.9 U1,3,5-Trimethylbenzene 5.30E+03 8.76E+03µg/m33.9 U 3.9 U 3.9 U 3.9 U5.9 3.9 U 3.9 U 3.9 U 3.9 U 3.9 U 3.9 U 3.9 U 3.9 U2,2,4-Trimethylpentane NA NAµg/m315 3.7 U2.8 J3.7 U32 16 19 22 15 8.4 13 4.3 10 Tetrachloroethylene 3.50E+03 1.57E+03µg/m335 1 J 12 30 333 685 203 239 320 195 254 101 159 Toluene 4.40E+05 7.30E+05µg/m324 3 U7.2 3.8 41.5 21 25 29 15 13 14 9.4 20 Trichloroethylene 1.80E+02 1.00E+02µg/m30.86 U 0.86 U 0.86 U 0.86 U 0.86 U1.6 3.9 4.9 8.6 0.86 U2.4 0.97 2.1 TrichlorofluoromethaneNANAµg/m34.5 U3.4 J4.5 U 4.5 U 4.5 U2.4 J4.5 U 4.5 U 4.5 U 4.5 U 4.5 U 4.5 U 4.5 Um,p-Xylene 8.80E+03 1.46E+04µg/m38.7 3.5 U5.2 2.9 J 28 10 9.6 12 4.8 6.1 3.5 U 3.5 U4.3 o-Xylene 8.80E+03 1.46E+04µg/m33.5 U 3.5 U2.2 J3.5 U7.8 3.7 3.2 J 4.3 3.5 U2.1 J3.5 U 3.5 U 3.5 UXylenes (total) 8.80E+03 1.46E+04µg/m38.7 3.5 U7.4 2.9 J 36 14 13 16 4.8 8.3 3.5 U 3.5 U4.3 Notes:Only analytes detected in one or more samples are presented in the table.Csg values were derived from the United States Environmental Protection Agency (USEPA) Vapor Intrusion Screening Level Calculator (VISL) on 19 November 2018.Csg values were derived using a commerical exposure scenario, a TCR of 1.0 x 10-6, a THQ of 1.0, and a default groundwater temperature of 25 degrees Celcius.Detections are in bold font.Detections above the NCDEQ SGSL and/or USEPA Csg are highlighted grey.Reporting limits above the NCDEQ SGSL and/or USEPA Csg are underlined.NA - no inhalation toxicity data availableU - analyte not detected above reporting limit shownJ - concentration was above method detection limit but below reporting limit and is therefore considered an estimated valueµg/m3 - micrograms per cubic meterSGSL values from the North Carolina Department of Environmental Quality (NCDEQ) Division of Waste Management (DWM) Non-Residential Vapor Intrusion Screening Levels (February 2018) using a commerical exposure scenario, a Target Risk for Carcinogens (TCR) of 1.0 x 10-5 and a Target Hazard Quotient for Non-Carcinogens (THQ) of 0.2.CompoundSub-Slab and Exterior Soil Gas Screening Level (SGSL)Target Sub-Slab and Near-Source Soil Gas Concentration (Csg)UnitsHVS-0510/17/2018HVS-0610/17/2018HVS-0110/18/2018HVS-0210/16/2018HVS-0310/17/2018HVS-0410/17/2018Geosyntec Consultants of NC, PCPage 1 of 1May 2019 Table 3High Volume Sampling Specific Capacity MeasurementsCrompton and Knowles SiteLowell, North CarolinaProbe ID Date General LocationAverage Purge Velocity (ft/min)Average Flow (scfm)Range of Flow (scfm)Approximate Volume Extracted (L)Average Purge Vacuum (in H2O)Range of Vacuum (in H2O)Average Specific Capacity (scfm/in H2O)Range Specific Capacity (scfm/in H2O)HVS-01 10/18/2018 Building 2 South 387 7.8 4.3 - 11.9 19,464 17.3 14.0 - 22.0 0.460.27 - 0.82 HVS-02 10/16/2018 Building 2 North308.36.1 2.5 - 7.4 16,89712.5 6.0 - 18.0 0.530.25 - 1.04HVS-03 10/17/2018 Building 3 East371.27.4 4.8 - 9.7 18,49812.3 11.5 - 14.0 0.610.40 - 0.77HVS-04 10/17/2018 Building 3 South355.77.2 6.0 - 8.5 18,81212.5 12.0 - 13.5 0.580.48 - 0.68HVS-05 10/17/2018 Building 3 North333.16.6 4.5 - 9.8 18,41315.0 12.0 - 18.0 0.450.26 - 0.63HVS-06 10/17/2018 Building 3 West378.77.5 4.4 - 10.2 19,75516.3 14.5 - 19.0 0.460.28 - 0.64Notes:Standard temperature and pressure assumed to be 25°C/77°F and 1 atm/14.7 psi.Flow calculations assume a room temperature of 25°C and an inner diameter of 2" Schedule 80 PVC of 1.939 inches.ft/min - feet per minutescfm - standard cubic feet per minuteL - litersin H2O - inches of water columnGeosyntec Consultants of NC, PCPage 1 of 1May 2019 Table 4Measured Vacuum at Communication Test PointsCrompton and Knowles SiteLowell, North CarolinaVacuum (in H2O)DirectionVacuum (in H2O)DirectionVacuum (in H2O)DirectionVacuum (in H2O)Distance (feet) DirectionHVS-01 10/18/2018 Building 2 South 0.0150 S 0.0149 S 0.0060 NE -0.0090 10SWHVS-02 10/16/2018 Building 2 North 0.0010 NE 0.0070 NE 0.0080 NWHVS-03 10/17/2018 Building 3 East 0.0952 SE 0.0225 SE 0.0110 EHVS-04 10/17/2018 Building 3 South 0.4500 SW 0.2040 SW 0.0563 SE -0.054636 NWHVS-05 10/17/2018 Building 3 North 2.5500 SW 0.2310 SW 0.1070 NW -0.024637 SWHVS-06 10/17/2018 Building 3 West 0.2440 N 0.0660 N 0.0203 ENotes:When more than one vacuum reading was collected, the highest vacuum influence is reported (assumed to be steady state when stabilized).in H2O - inches of water columnNR - not recordedNRNRNRProbe ID3 feet 10 feet 30 feet AdditionalDate General LocationGeosyntec Consultants of NC, PCPage 1 of 1May 2019 FIGURES Site Location MapCrompton & Knowles Site1602 N. Main St., LowellGaston County, North Carolina Figure 1 File Path: charlotte-01:P:\GIS\Projects\N\NCDENR\Crompton&Knowles\MXD\VI Report\Figure 1 - Site Vicinity.mxd, Last Edited by:AKenwell Charlotte, North Carolina May 2019 1,000 0 1,000500 Feet ³ Notes1. Property boundary and building footprint locations were providedby Gaston County GIS2. USA Topo Maps Copyright: 2014 National GeographicSociety, i-cubed Legend Property Boundary Former Aeration Lagoon N o r t h M a i n S t r e e t / L ow e l l S p e n c e r M o u n t a i n R o a d Former Substation Transformer Former PrimaryLagoon Former SludgeLagoon WWTP-2 WWTP-4 WWTP-3 WWTP-1 WWTP-5 SOUTH FORKCATAWBA RIVER 5 3A 8 2 18 4 1 6 13 7 811 12 10 34 21 24 28 26 31 17A 29 22 30 15 Notes1. Site Features are approximated from Annual Groundwater and SurfaceWater Monitoring Report Figure 4 (AWARE Environemental, Inc., January2008).2. Property boundary and building footprint locations were provided byGaston County GIS.3. WWTP = wastewater treatment plant Site FeaturesCrompton & Knowles Site1602 N. Main St., LowellGaston County, North Carolina Figure2Charlotte, North Carolina May 2019 125 0 12562.5 Feet ³ Building Number Building Description Remarks 1 Administration Offices --2 Quality Assurance Laboratory --3 Shipping/Receiving/Warehouse --4 Grinding/Blending/Milling --5 Synthesis/Filterpress/Ovens Azo Dyes6Boiler Room --7 Locker Room/Lunch Room -- 8 Warehouse Eutectic Freeze Crystallization Processing9 Synthesis/Liquid Packout Acid Dyes10Warehouse/Whiteners Urea Dyes11Training Room Tint Department12Filterpress --13 Maintenance --15 Laboratory Flammable Storage --17 Waste Treatment Laboratory --18 Warehouse Drum Storage21Forklift Shop --22 Clarifier Pump House --24 Sludge Filterpress --26 Flammable Storage --28 Waste Treatment Control Room --29 Neutralization Tank Pump House --30 Lift Station Switch Gear --31 Sludge Thickener Pump House --34 Waste Treatment Equipment Room --File Path: charlotte-01:P:\GIS\Projects\N\NCDENR\Crompton&Knowles\MXD\VI Report\Figure 2 - Site Layout.mxd, Last Edited by:AKenwell Legend Existing Building Footprint and Building ID Former Lagoon WWTP Tanks Tree line Plant Sewer Line (Approximate) Previous Soil Excavation Area (Approximate) Property Boundary 1 &> &> &> &> &> &> HVS-02 HVS-01 HVS-03 HVS-05 HVS-06 HVS-04 3A 5 2 4 1 15 High Volume Sampling Analytical Results TO-15 Detected Compounds Crompton & Knowles Site 1602 N. Main St., Lowell Gaston County, North Carolina Figure 3 Charlotte, North Carolina May 2019 Notes 1. Site Features are approximated from Annual Groundwater and Surface Water Monitoring Report Figure 4 (AWARE Environemental, Inc., January 2008). 2. Property boundary and building footprint locations were provided by Gaston County GIS. 3. Interior walls from drawings included in a 2005 estate sale inventory. 4. High Volume Sampling (HVS) locations and communication test points are approximate. 5. Concentrations are shown in micrograms per cubic meter. 6. U indicates compound was not detected over reporting limit shown. 7. J indicates estimated concentration. 8. NCDEQ SGSL indicates North Carolina Department of Environmental Quality Sub-Slab and Exterior Soil Gas Screening Level. 9. USEPA Csg indicates United States Environmental Protection Agency Target Sub-Slab and Exterior Soil Gas Concentration determined using the USEPA Vapor Intrusion Screening Level Calculator under a commercial exposure scenario. 10. Shaded bold values are above SGSL and/or Csg criteria.File Path: charlotte-01:P:\GIS\Projects\N\NCDENR\Crompton&Knowles\MXD\VI Report\Figure 3 - HVS Analytical Results.mxd, Last Edited by:AKenwell Legend &>HVS Sample Location Communication Test Point Existing Building Footprint and Building ID InteriorWalls Tree line Previous Soil Excavation Area (Approximate) Plant Sewer Line (Approximate) Property Boundary 30 0 3015 Feet Compound Beginning End Acetone 20 16 Benzene 2.6 U 4.2 Chloromethane 1.7 U 2.3 Ethanol 10 4 Ethyl Acetate 2.9 U 41.4 Heptane 3.3 U 3.9 Hexane 4.9 7.4 Isopropyl Alcohol 6.1 2 U Methylene Chloride 6.9 2.8 U Methyl ethyl ketone 2.4 2.4 U Methylmethacrylate 15 3.3 U 2,2,4-Trimethylpentane 4.3 10 Tetrachloroethylene 101 159 Toluene 9.4 20 Trichloroethylene 0.97 2.1 m,p-Xylene 3.5 U 4.3 Xylenes (total)3.5 U 4.3 HVS-06 Compound Beginning End Acetone 14 14 Benzene 3.8 3.8 Chloromethane 0.87 J 1.7 U Dichlorodifluoromethane 2.9 J 2.9 J Ethanol 18 11 Ethylbenzene 1.8 J 3.5 U Ethyl Acetate 2.6 J 4.3 Heptane 3 J 4.1 Hexane 7 12 Isopropyl Alcohol 2.1 2.7 Methylene Chloride 5.9 13 Methyl ethyl ketone 2.5 2.5 Propylene 1.7 J 3.4 U 2,2,4-Trimethylpentane 8.4 13 Tetrachloroethylene 195 254 Toluene 13 14 Trichloroethylene 0.86 U 2.4 m,p-Xylene 6.1 3.5 U o-Xylene 2.1 J 3.5 U Xylenes (total)8.3 3.5 U HVS-05 Compound End Acetone 24.2 12 15 Benzene 7.7 6.7 4.2 Chloroform 3 J 3.5 J 7.3 Cyclohexane 2.5 J 2.3 J 1.8 J Dichlorodifluoromethane 2.8 J 2.9 J 2.8 J Ethanol 20.7 22.4 13 Ethylbenzene 3.3 J 3.5 1.7 J Ethyl Acetate 4 4.7 4.7 Heptane 6.1 7.4 4.9 Hexane 21 14 12 Isopropyl Alcohol 2 U 3.4 2.7 Methylene Chloride 12 3.8 4.9 Methyl ethyl ketone 5 3.8 3.5 Methylmethacrylate 3.3 U 9.8 3.3 U Propylene 3.1 J 4 1.2 J 1,2,4-Trimethylbenzene 3.1 J 3.5 J 3.9 U 2,2,4-Trimethylpentane 19 22 15 Tetrachloroethylene 203 239 320 Toluene 25 29 15 Trichloroethylene 3.9 4.9 8.6 m,p-Xylene 9.6 12 4.8 o-Xylene 3.2 J 4.3 3.5 U Xylenes (total)13 16 4.8 HVS-04 Beginning Compound Beginning End Acetone 46.3 14 1,3-Butadiene 2.4 0.93 J Benzene 13 6.7 Chloroform 2.1 J 2.1 J Chloromethane 0.97 J 1.7 U Cyclohexane 2.9 1.4 J 1,2-Dibromoethane 6.8 6.1 U Dichlorodifluoromethane 2.1 J 2.1 J Ethanol 20.7 15 Ethylbenzene 7.4 3 J Ethyl Acetate 20 5 4-Ethyltoluene 4 3.9 U Heptane 8.2 4.1 Hexane 21 12 Isopropyl Alcohol 6.4 2 U Methyl ethyl ketone 21 1.7 J Propylene 9.6 4.1 1,1,1-Trichloroethane 4.4 U 1.7 J 1,2,4-Trimethylbenzene 22 3.8 J 1,3,5-Trimethylbenzene 5.9 3.9 U 2,2,4-Trimethylpentane 32 16 Tetrachloroethylene 333 685 Toluene 41.5 21 Trichloroethylene 0.86 U 1.6 Trichlorofluoromethane 4.5 U 2.4 J m,p-Xylene 28 10 o-Xylene 7.8 3.7 Xylenes (total)36 14 HVS-03 Compound Beginning End Acetone 37.3 22 Benzene 2.7 1.4 J Bromodichloromethane 5.7 12 Carbon disulfide 6.5 4.7 Chloroform 68.9 81.1 Chloromethane 1.4 J 1.9 Dichlorodifluoromethane 2.1 J 2.3 J Ethanol 11 12 Ethylbenzene 1.8 J 3.5 U Ethyl Acetate 5.4 48.9 Hexane 2.3 J 3.9 Isopropyl Alcohol 2.4 3.7 Methylene Chloride 2.9 10 Methyl ethyl ketone 41.9 11 Propylene 16 7.2 1,2,4-Trimethylbenzene 2.9 J 3.9 U 2,2,4-Trimethylpentane 2.8 J 3.7 U Tetrachloroethylene 12 30 Toluene 7.2 3.8 m,p-Xylene 5.2 2.9 J o-Xylene 2.2 J 3.5 U Xylenes (total)7.4 2.9 J HVS-02 Compound Beginning End Acetone 13 7.1 Benzene 5.4 2.6 U Cyclohexane 2.7 2.8 U Ethanol 10 6 Heptane 6.6 3.3 U Hexane 19 16 Methylene Chloride 2.8 U 53.8 2,2,4-Trimethylpentane 15 3.7 U Tetrachloroethylene 35 1 J Toluene 24 3 U Trichlorofluoromethane 4.5 U 3.4 J m,p-Xylene 8.7 3.5 U Xylenes (total)8.7 3.5 U HVS-01 Acetone 1.90E+07 4.51E+06 1,3-Butadiene 1.80E+02 1.40E+01 Benzene 1.60E+03 5.20E+01 Bromodichloromethane 3.30E+02 1.10E+01 Carbon disulfide 6.10E+04 1.02E+05 Chloroform 5.30E+02 1.80E+01 Chloromethane 7.90E+03 1.31E+04 Cyclohexane 8.80E+04 1.46E+05 1,2-Dibromoethane 2.00E+01 1.00E+00 Dichlorodifluoromethane 8.80E+03 1.46E+04 Ethanol NA NA Ethylbenzene 4.90E+03 1.64E+02 Ethyl Acetate 6.10E+03 1.02E+04 4-Ethyltoluene NA NA Heptane 3.50E+04 5.84E+04 Hexane 6.10E+04 1.02E+05 Isopropyl Alcohol NA NA Methylene Chloride 5.30E+04 4.09E+04 Methyl ethyl ketone 4.40E+05 7.30E+05 Methylmethacrylate NA NA Propylene 2.60E+05 4.38E+05 1,1,1-Trichloroethane 4.40E+05 7.30E+05 1,2,4-Trimethylbenzene 5.30E+03 8.76E+03 1,3,5-Trimethylbenzene 5.30E+03 8.76E+03 2,2,4-Trimethylpentane NA NA Tetrachloroethylene 3.50E+03 1.57E+03 Toluene 4.40E+05 7.30E+05 Trichloroethylene 1.80E+02 1.00E+02 Trichlorofluoromethane NA NA m,p-Xylene 8.80E+03 1.46E+04 o-Xylene 8.80E+03 1.46E+04 Xylenes (total) 8.80E+03 1.46E+04 Screening Criteria: SGSL Csg 1 High Purge Volume Test Assembly Crompton and Knowles Site Lowell, North Carolina Figure 4 Charlotte, North Carolina May 2019 APPENDICES Appendix A Calibration Logs Appendix B Field Sampling Forms Appendix C PID Readings with Volume Extracted 00.20.40.60.811.21.41.61.820 100 200 300 400 500 600 700 800PID Reading (ppm)Cumulative Volume Extracted (L)PID Readings - Building 2 (HVS-01 and HVS-02)HVS-01HVS-02 00.20.40.60.811.21.41.61.820 100 200 300 400 500 600 700PID Reading (ppm)Cumulative Volume Extracted (L)PID Readings - Building 3 Footer 1 (HVS-03 and HVS-05)HVS-03HVS-05 -0.500.511.520 100 200 300 400 500 600 700 800PID Reading (ppm)Cumulative Volume Extracted (L)PID Readings - Building 3 Footer 2 (HVS-04 and HVS-06)HVS-04HVS-06 Appendix D Laboratory Analytical Reports 11/05/18 Technical Report for Geosyntec Consultants Crompton & Knowles, 1602 North Main Street, Lowell, NC GC6521 SGS Job Number: JC76383 Sampling Dates: 10/17/18 - 10/18/18 Report to: Geosyntec Consultants 1300 South Mint Street Suite 110 Charlotte, NC 28203 sdamasceno@geosyntec.com; jahrens@geosyntec.com ATTN: Stephanie Damasceno Total number of pages in report: Certifications: NJ(12129), NY(10983), CA, CT, FL, IL, IN, KS, KY, LA, MA, MD, ME, MN, NC, OH VAP (CL0056), AK (UST-103), AZ (AZ0786), PA, RI, SC, TX, UT, VA, WV, DoD ELAP (ANAB L2248) This report shall not be reproduced, except in its entirety, without the written approval of SGS. Test results relate only to samples analyzed. SGS North America Inc. • 2235 Route 130 • Dayton, NJ 08810 • tel: 732-329-0200 • fax: 732-329-3499 Test results contained within this data package meet the requirements of the National Environmental Laboratory Accreditation Program and/or state specific certification programs as applicable. Client Service contact: Tammy McCloskey 732-329-0200 A. Paul Ioannidis General Manager Dayton, NJ 11/05/18 e-Hardcopy 2.0 Automated Report 51 SGS is the sole authority for authorizing edits or modifications to this document. Unauthorized modification of this report is strictly prohibited. Review standard terms at: http://www.sgs.com/en/terms-and-conditions The results set forth herein are provided by SGS North America Inc. Please share your ideas about how we can serve you better at: EHS.US.CustomerCare@sgs.com 1 of 51 JC76383 Table of Contents -1- Sections: Section 1: Sample Summary ...................................................................................................3 Section 2: Summary of Hits ....................................................................................................4 Section 3: Sample Results ........................................................................................................7 3.1: JC76383-1: HVS-06-START ........................................................................................8 3.2: JC76383-2: HVS-06-END ............................................................................................11 3.3: JC76383-3: HVS-01-START ........................................................................................14 3.4: JC76383-4: HVS-01-END ............................................................................................17 Section 4: Misc. Forms ............................................................................................................20 4.1: Chain of Custody ...........................................................................................................21 4.2: Summa Canister and Flow Controller Log ....................................................................24 Section 5: MS Volatiles - QC Data Summaries .....................................................................25 5.1: Method Blank Summary ................................................................................................26 5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................32 5.3: Duplicate Summary .......................................................................................................38 5.4: Summa Cleaning Certification ......................................................................................41 5.5: Instrument Performance Checks (BFB) .........................................................................47 5.6: Surrogate Recovery Summaries .....................................................................................51 123452 of 51 JC76383 SGS North America Inc. Sample Summary Geosyntec Consultants Job No:JC76383 Crompton & Knowles, 1602 North Main Street, Lowell, NC Project No: GC6521 Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID JC76383-1 10/17/18 15:35 BP 10/20/18 AIR Soil Vapor Comp.HVS-06-START JC76383-2 10/17/18 17:00 BP 10/20/18 AIR Soil Vapor Comp.HVS-06-END JC76383-3 10/18/18 09:45 BP 10/20/18 AIR Soil Vapor Comp.HVS-01-START JC76383-4 10/18/18 11:10 BP 10/20/18 AIR Soil Vapor Comp.HVS-01-END 3 of 51 JC763831 Summary of Hits Page 1 of 3 Job Number:JC76383 Account:Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Collected:10/17/18 thru 10/18/18 Lab Sample ID Client Sample ID Result/ Analyte Qual RL MDL Units Method JC76383-1 HVS-06-START Acetone 8.4 0.80 0.45 ppbv TO-15 Ethanol 5.3 2.0 0.87 ppbv TO-15 Hexane 1.4 0.80 0.042 ppbv TO-15 Isopropyl Alcohol 2.5 0.80 0.26 ppbv TO-15 Methylene chloride 2.0 0.80 0.058 ppbv TO-15 Methyl ethyl ketone 0.82 0.80 0.17 ppbv TO-15 Methylmethacrylate 3.6 0.80 0.13 ppbv TO-15 2,2,4-Trimethylpentane 0.91 0.80 0.087 ppbv TO-15 Tetrachloroethylene 14.9 0.16 0.12 ppbv TO-15 Toluene 2.5 0.80 0.058 ppbv TO-15 Trichloroethylene 0.18 0.16 0.076 ppbv TO-15 Acetone 20 1.9 1.1 ug/m3 TO-15 Ethanol 10 3.8 1.6 ug/m3 TO-15 Hexane 4.9 2.8 0.15 ug/m3 TO-15 Isopropyl Alcohol 6.1 2.0 0.64 ug/m3 TO-15 Methylene chloride 6.9 2.8 0.20 ug/m3 TO-15 Methyl ethyl ketone 2.4 2.4 0.50 ug/m3 TO-15 Methylmethacrylate 15 3.3 0.53 ug/m3 TO-15 2,2,4-Trimethylpentane 4.3 3.7 0.41 ug/m3 TO-15 Tetrachloroethylene 101 1.1 0.81 ug/m3 TO-15 Toluene 9.4 3.0 0.22 ug/m3 TO-15 Trichloroethylene 0.97 0.86 0.41 ug/m3 TO-15 JC76383-2 HVS-06-END Acetone 6.7 0.80 0.45 ppbv TO-15 Benzene 1.3 0.80 0.048 ppbv TO-15 Chloromethane 1.1 0.80 0.061 ppbv TO-15 Ethanol 2.1 2.0 0.87 ppbv TO-15 Ethyl Acetate 11.5 0.80 0.15 ppbv TO-15 Heptane 0.95 0.80 0.070 ppbv TO-15 Hexane 2.1 0.80 0.042 ppbv TO-15 2,2,4-Trimethylpentane 2.2 0.80 0.087 ppbv TO-15 Tetrachloroethylene 23.4 0.16 0.12 ppbv TO-15 Toluene 5.2 0.80 0.058 ppbv TO-15 Trichloroethylene 0.40 0.16 0.076 ppbv TO-15 m,p-Xylene 1.0 0.80 0.14 ppbv TO-15 Xylenes (total)1.0 0.80 0.068 ppbv TO-15 Acetone 16 1.9 1.1 ug/m3 TO-15 Benzene 4.2 2.6 0.15 ug/m3 TO-15 Chloromethane 2.3 1.7 0.13 ug/m3 TO-15 Ethanol 4.0 3.8 1.6 ug/m3 TO-15 Ethyl Acetate 41.4 2.9 0.54 ug/m3 TO-15 4 of 51 JC763832 Summary of Hits Page 2 of 3 Job Number:JC76383 Account:Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Collected:10/17/18 thru 10/18/18 Lab Sample ID Client Sample ID Result/ Analyte Qual RL MDL Units Method Heptane 3.9 3.3 0.29 ug/m3 TO-15 Hexane 7.4 2.8 0.15 ug/m3 TO-15 2,2,4-Trimethylpentane 10 3.7 0.41 ug/m3 TO-15 Tetrachloroethylene 159 1.1 0.81 ug/m3 TO-15 Toluene 20 3.0 0.22 ug/m3 TO-15 Trichloroethylene 2.1 0.86 0.41 ug/m3 TO-15 m,p-Xylene 4.3 3.5 0.61 ug/m3 TO-15 Xylenes (total)4.3 3.5 0.30 ug/m3 TO-15 JC76383-3 HVS-01-START Acetone 5.5 0.80 0.45 ppbv TO-15 Benzene 1.7 0.80 0.048 ppbv TO-15 Cyclohexane 0.79 J 0.80 0.088 ppbv TO-15 Ethanol 5.4 2.0 0.87 ppbv TO-15 Heptane 1.6 0.80 0.070 ppbv TO-15 Hexane 5.5 0.80 0.042 ppbv TO-15 2,2,4-Trimethylpentane 3.2 0.80 0.087 ppbv TO-15 Tetrachloroethylene 5.2 0.16 0.12 ppbv TO-15 Toluene 6.5 0.80 0.058 ppbv TO-15 m,p-Xylene 2.0 0.80 0.14 ppbv TO-15 Xylenes (total)2.0 0.80 0.068 ppbv TO-15 Acetone 13 1.9 1.1 ug/m3 TO-15 Benzene 5.4 2.6 0.15 ug/m3 TO-15 Cyclohexane 2.7 J 2.8 0.30 ug/m3 TO-15 Ethanol 10 3.8 1.6 ug/m3 TO-15 Heptane 6.6 3.3 0.29 ug/m3 TO-15 Hexane 19 2.8 0.15 ug/m3 TO-15 2,2,4-Trimethylpentane 15 3.7 0.41 ug/m3 TO-15 Tetrachloroethylene 35 1.1 0.81 ug/m3 TO-15 Toluene 24 3.0 0.22 ug/m3 TO-15 m,p-Xylene 8.7 3.5 0.61 ug/m3 TO-15 Xylenes (total)8.7 3.5 0.30 ug/m3 TO-15 JC76383-4 HVS-01-END Acetone 3.0 0.80 0.45 ppbv TO-15 Ethanol 3.2 2.0 0.87 ppbv TO-15 Hexane 4.6 0.80 0.042 ppbv TO-15 Methylene chloride 15.5 0.80 0.058 ppbv TO-15 Tetrachloroethylene 0.15 J 0.16 0.12 ppbv TO-15 Trichlorofluoromethane 0.61 J 0.80 0.11 ppbv TO-15 Acetone 7.1 1.9 1.1 ug/m3 TO-15 Ethanol 6.0 3.8 1.6 ug/m3 TO-15 Hexane 16 2.8 0.15 ug/m3 TO-15 5 of 51 JC763832 Summary of Hits Page 3 of 3 Job Number:JC76383 Account:Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Collected:10/17/18 thru 10/18/18 Lab Sample ID Client Sample ID Result/ Analyte Qual RL MDL Units Method Methylene chloride 53.8 2.8 0.20 ug/m3 TO-15 Tetrachloroethylene 1.0 J 1.1 0.81 ug/m3 TO-15 Trichlorofluoromethane 3.4 J 4.5 0.62 ug/m3 TO-15 6 of 51 JC763832 SGS North America Inc. Sample Results Report of Analysis Dayton, NJ Section 3 7 of 51 JC763833 SGS North America Inc. Report of Analysis Page 1 of 3 Client Sample ID:HVS-06-START Lab Sample ID:JC76383-1 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A1251 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 5W33566.D 1 10/29/18 19:28 GP n/a n/a V5W1348 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 8.4 0.80 0.45 ppbv 20 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene ND 0.80 0.048 ppbv ND 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform a ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride a ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform ND 0.80 0.080 ppbv ND 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane ND 0.80 0.061 ppbv ND 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane ND 0.80 0.088 ppbv ND 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane ND 0.80 0.066 ppbv ND 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 8 of 51 JC7638333.1 SGS North America Inc. Report of Analysis Page 2 of 3 Client Sample ID:HVS-06-START Lab Sample ID:JC76383-1 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A1251 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 5.3 2.0 0.87 ppbv 10 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene ND 0.80 0.060 ppbv ND 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate ND 0.80 0.15 ppbv ND 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane ND 0.80 0.070 ppbv ND 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 1.4 0.80 0.042 ppbv 4.9 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol 2.5 0.80 0.26 ppbv 6.1 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride 2.0 0.80 0.058 ppbv 6.9 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone 0.82 0.80 0.17 ppbv 2.4 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate 3.6 0.80 0.13 ppbv 15 3.3 0.53 ug/m3 115-07-1 42 Propylene ND 2.0 0.064 ppbv ND 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 0.91 0.80 0.087 ppbv 4.3 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 14.9 0.16 0.12 ppbv 101 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 2.5 0.80 0.058 ppbv 9.4 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene 0.18 0.16 0.076 ppbv 0.97 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene ND 0.80 0.14 ppbv ND 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene ND 0.80 0.068 ppbv ND 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)ND 0.80 0.068 ppbv ND 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 100%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 9 of 51 JC7638333.1 SGS North America Inc. Report of Analysis Page 3 of 3 Client Sample ID:HVS-06-START Lab Sample ID:JC76383-1 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A1251 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units (a) Associated CCV outside of control limits high, sample was ND. ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 10 of 51 JC7638333.1 SGS North America Inc. Report of Analysis Page 1 of 3 Client Sample ID:HVS-06-END Lab Sample ID:JC76383-2 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: M328 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 5W33567.D 1 10/29/18 20:13 GP n/a n/a V5W1348 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 6.7 0.80 0.45 ppbv 16 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 1.3 0.80 0.048 ppbv 4.2 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform a ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride a ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform ND 0.80 0.080 ppbv ND 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane 1.1 0.80 0.061 ppbv 2.3 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane ND 0.80 0.088 ppbv ND 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane ND 0.80 0.066 ppbv ND 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 11 of 51 JC7638333.2 SGS North America Inc. Report of Analysis Page 2 of 3 Client Sample ID:HVS-06-END Lab Sample ID:JC76383-2 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: M328 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 2.1 2.0 0.87 ppbv 4.0 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene ND 0.80 0.060 ppbv ND 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate 11.5 0.80 0.15 ppbv 41.4 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane 0.95 0.80 0.070 ppbv 3.9 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 2.1 0.80 0.042 ppbv 7.4 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol ND 0.80 0.26 ppbv ND 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride ND 0.80 0.058 ppbv ND 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone ND 0.80 0.17 ppbv ND 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene ND 2.0 0.064 ppbv ND 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 2.2 0.80 0.087 ppbv 10 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 23.4 0.16 0.12 ppbv 159 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 5.2 0.80 0.058 ppbv 20 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene 0.40 0.16 0.076 ppbv 2.1 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene 1.0 0.80 0.14 ppbv 4.3 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene ND 0.80 0.068 ppbv ND 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)1.0 0.80 0.068 ppbv 4.3 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 99%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 12 of 51 JC7638333.2 SGS North America Inc. Report of Analysis Page 3 of 3 Client Sample ID:HVS-06-END Lab Sample ID:JC76383-2 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: M328 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units (a) Associated CCV outside of control limits high, sample was ND. ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 13 of 51 JC7638333.2 SGS North America Inc. Report of Analysis Page 1 of 3 Client Sample ID:HVS-01-START Lab Sample ID:JC76383-3 Date Sampled:10/18/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A599 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 5W33568.D 1 10/29/18 20:59 GP n/a n/a V5W1348 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 5.5 0.80 0.45 ppbv 13 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 1.7 0.80 0.048 ppbv 5.4 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform a ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride a ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform ND 0.80 0.080 ppbv ND 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane ND 0.80 0.061 ppbv ND 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane 0.79 0.80 0.088 ppbv J 2.7 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane ND 0.80 0.066 ppbv ND 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 14 of 51 JC7638333.3 SGS North America Inc. Report of Analysis Page 2 of 3 Client Sample ID:HVS-01-START Lab Sample ID:JC76383-3 Date Sampled:10/18/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A599 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 5.4 2.0 0.87 ppbv 10 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene ND 0.80 0.060 ppbv ND 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate ND 0.80 0.15 ppbv ND 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane 1.6 0.80 0.070 ppbv 6.6 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 5.5 0.80 0.042 ppbv 19 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol ND 0.80 0.26 ppbv ND 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride ND 0.80 0.058 ppbv ND 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone ND 0.80 0.17 ppbv ND 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene ND 2.0 0.064 ppbv ND 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 3.2 0.80 0.087 ppbv 15 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 5.2 0.16 0.12 ppbv 35 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 6.5 0.80 0.058 ppbv 24 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene ND 0.16 0.076 ppbv ND 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene 2.0 0.80 0.14 ppbv 8.7 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene ND 0.80 0.068 ppbv ND 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)2.0 0.80 0.068 ppbv 8.7 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 99%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 15 of 51 JC7638333.3 SGS North America Inc. Report of Analysis Page 3 of 3 Client Sample ID:HVS-01-START Lab Sample ID:JC76383-3 Date Sampled:10/18/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A599 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units (a) Associated CCV outside of control limits high, sample was ND. ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 16 of 51 JC7638333.3 SGS North America Inc. Report of Analysis Page 1 of 3 Client Sample ID:HVS-01-END Lab Sample ID:JC76383-4 Date Sampled:10/18/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A488 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 5W33569.D 1 10/29/18 21:44 GP n/a n/a V5W1348 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 3.0 0.80 0.45 ppbv 7.1 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene ND 0.80 0.048 ppbv ND 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform a ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride a ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform ND 0.80 0.080 ppbv ND 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane ND 0.80 0.061 ppbv ND 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane ND 0.80 0.088 ppbv ND 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane ND 0.80 0.066 ppbv ND 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 17 of 51 JC7638333.4 SGS North America Inc. Report of Analysis Page 2 of 3 Client Sample ID:HVS-01-END Lab Sample ID:JC76383-4 Date Sampled:10/18/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A488 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 3.2 2.0 0.87 ppbv 6.0 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene ND 0.80 0.060 ppbv ND 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate ND 0.80 0.15 ppbv ND 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane ND 0.80 0.070 ppbv ND 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 4.6 0.80 0.042 ppbv 16 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol ND 0.80 0.26 ppbv ND 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride 15.5 0.80 0.058 ppbv 53.8 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone ND 0.80 0.17 ppbv ND 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene ND 2.0 0.064 ppbv ND 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane ND 0.80 0.087 ppbv ND 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 0.15 0.16 0.12 ppbv J 1.0 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene ND 0.80 0.058 ppbv ND 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene ND 0.16 0.076 ppbv ND 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane 0.61 0.80 0.11 ppbv J 3.4 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene ND 0.80 0.14 ppbv ND 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene ND 0.80 0.068 ppbv ND 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)ND 0.80 0.068 ppbv ND 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 99%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 18 of 51 JC7638333.4 SGS North America Inc. Report of Analysis Page 3 of 3 Client Sample ID:HVS-01-END Lab Sample ID:JC76383-4 Date Sampled:10/18/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A488 Date Received:10/20/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units (a) Associated CCV outside of control limits high, sample was ND. ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 19 of 51 JC7638333.4 SGS North America Inc. Misc. Forms Custody Documents and Other Forms Includes the following where applicable: • Chain of Custody • Summa Canister and Flow Controller Log Dayton, NJ Section 4 20 of 51 JC763834 AIR CHAIN OF CUSTODY PAGE , OF~I\\~ ~~~~~--~----~ SGS North Amenca Inc. -Dayton 2235 Route 130, Dayton, NJ 08810 TEL. 732-329-0200 FAX 732-329-3499 SGa fW\ItJ ~n(l: f'l"'Im/Ah '1, "Ii!! Project Name: Maximum:J-____~~~~~~~:...------------___1f_:.._---...:::::~~I.\!_~~.......Jr.c...-!::D!~~;;;.;;L-_tStart: Street <::}r ~"'3.0C> Stop Minimum: Zip City State ~~~ N~ , Pressure (inch.s of Hg)IProject Contact E-mail , IProject # IStart: Maximum' "t~~G.l~~l'Illl 'Sdolft~t..'eM\i"l/'lt)nP~1..~t.. c..oM (;. c. (QS-z...) IStop: Minimum;[Phone" 1" Fax-# '-,-I 'oJv~'l...., _ C!b~c> ..., IClient Purchas .. Order # ISampler(s) Name(s) IOther weather cotnI"I1ent: Sampling Equipment Info Start Sampling Information Stop Sampling Information V1 -;­ Lab Flow Time CanisterTimeJ Canister IInteriorIndoor (I) Interior I I!OController (24hr Pressure TemplsamPler (24hrISamPle PressureSoil Yap (SV) ICanister ICanister Size ~P ~a'~ii.ler FAmbient (A) Serial # 6L or 1 L ~rial## Date l~ock_C'I::l9.L JE) Init. Date clock) ("HQlField 10 I Point of Collection <;;\1 I \,«\"\ I l 0'3S4 I!.P 1:X\-\\1;-()£,-~ I'()Jl1I~IIS~~,\~1 I I'1P 116JnJJ&ll'S'SS 5 £.,. oc:n."\O l~il'CJI\'''a IIJ,S-~·}2.~.s I Ie.P It O/n/,tl 1100 5 e,~lr~"Cb-M SV ~k~' ') \ .ACtIr")QIU\O/\,&k6i ~~() I"SC) I Igf lil'O/l&'\~ '\L.\~ I S "$;\1 I \2A1 Sf» ~H"<i..-Ol-~~ ~v I \\~\4\1';-0\-aA ~p IX.IO$~~ r1~J'Ol\col\~1 llQ; I?-<& I I Sf> Il'°ItBl$1 ~\\O I--S'-'\ IffiRT?HJ TumarolJ~~_:rime ( BU"i~ss days) Oata DeliveraD .. u1tormation Comments I Kemark:s Standard ·15 Days All NJDEP TO-15 is mandatory Full T1 10 Day Approved By: Comm A I I INITIAL ASESSMENT Lt, A-(7f5 Day CommB 3 Day Reduced T2 2 Day Dale: Full Tl LABEL VERIFICATION __ 1 Day Other: DKQP reporting documented below each time samples c R;li;U~dbY'-" 1 1 ' RelinqW8hedS1 3 ~'7 \... 4I--~ ..... ---­ 1;"inQUiOhO<t by, ID.te/Tim.: l;eCOlved By: ICli$tOdY S••I# ,/ "< <;,;;i;:,:: :s,'< ';::;; :, 11::';; Date Time, 1 _ -. Received By: Il -"""/" P. p ,_lo/18,1& ,~ 2 4 ( l/ -LZ Date Time: IReceivEtd By; 4 I Form:SM088-03D (revised 2-12-18) http://www.sgs.com/enlterms-and-conditions) JC76383: Chain of Custody Page 1 of 3 21 of 51 JC7638344.1 .I n' f : AIR SAMPLING EQUIPMENT RETURN ~ORM CUENT: CY.Q OS ~f\-\e, C . PROJECT: Gem etcH! kflo~J~ CONTROL#:Sm'"' 100» 8 ~-) [(8 JOB # 3(70 scrj ADDITIONAL SUMMft: CANISTERS ADDITIONAL CONTROUL.E:RS s-me \13 h ._u mc.'3 ~a-7 ±c c9~y \ ,.. Q­,~ .. -ul_~l 9 fC 06'3 10 -tc ~ ,: -(,. ~L 6.3\ ('l. mc 056 ..J BWtlQYlSI:IEQ Ere Ft/rI)C1 L26IUk ~of~ 10 0 .) BES;EIVEQ ~ , 2.~ \ .. 0An..ai ;;1io /f'10 0'-' BEUt:lQ!.lUiill:lm ax:: ~ l:Ud.i: BECEnlf.i:C.ax.: 4 ~ IJME; 3 CUSTQQ.Y SEAl. t£.'S: " -,;II'" .r, t£. QE acxES CS ElgCg§ Ui OEUVEBY NOTES: :10 SM086-03 Pub date: 3/12/18 JC76383: Chain of Custody Page 2 of 3 22 of 51 JC7638344.1 Job Number:JC76383 Client:GEOSYNTEC CONSULTANTS Date / Time Received:10/20/2018 10:00:00 AM Delivery Method: Project:CROMPTON & KNOWLES, 1602 NORTH MAIN 4. No. Coolers:N/A Airbill #'s: Cooler Security 1. Custody Seals Present: Y or N 2. Custody Seals Intact: 3. COC Present: 4. Smpl Dates/Time OK 2. Cooler temp verification: Cooler Temperature Y or N 1. Temp criteria achieved: 3. Cooler media: N/A N/A Quality Control Preservation Y or N N/A 1. Trip Blank present / cooler: 2. Trip Blank listed on COC: 3. Samples preserved properly: 4. VOCs headspace free: Sample Integrity - Documentation Y or N 1. Sample labels present on bottles: 2. Container labeling complete: 3. Sample container label / COC agree: Sample Integrity - Condition Y or N 1. Sample recvd within HT: 3. Condition of sample: 2. All containers accounted for: Sample Integrity - Instructions 1. Analysis requested is clear: 2. Bottles received for unspecified tests 3. Sufficient volume recvd for analysis: 4. Compositing instructions clear: 5. Filtering instructions clear: Intact Y or N Comments Y or N N/A Cooler Temps (Raw Measured) °C: Cooler Temps (Corrected) °C: SM089-03 Rev. Date 12/7/17 SGS Sample Receipt Summary Test Strip Lot #s:pH 1-12:216017 pH 12+:208717 Other: (Specify) JC76383: Chain of Custody Page 3 of 3 23 of 51 JC7638344.1 Summa Canister and Flow Controller Log Page 1 of 1 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Received:10/20/18 SUMMA CANISTERS Shipping Receiving Summa Vac Date SCC SCC Sample Date Vac Pres Final Dil ID L " Hg Out By Batch FileID Number In By " Hg psig psig Fact A1251 1 29.4 10/11/18 JT CP100166W08436.D JC76383-1 10/26/18 GP 4 1 M328 1 29.4 10/11/18 JT CP100186W08435.D JC76383-2 10/26/18 GP 5.5 1 A599 1 29.4 10/11/18 JT CP100186W08435.D JC76383-3 10/26/18 GP 4.5 1 A488 1 29.4 10/11/18 JT CP100186W08435.D JC76383-4 10/26/18 GP 5 1 FLOW CONTROLLERS / OTHER Shipping Receiving Flow Date cc/Time Date cc/Flow Crtl ID Out By min hrs.In By min RPD Equipment Type FC092 10/11/18 JT 200 .0666 10/30/18 JT 203 1.5 Flow Controller FC631 10/11/18 JT 200 .0666 10/30/18 JT 208 3.9 Flow Controller FC633 10/11/18 JT 200 .0666 10/30/18 JT 205 2.5 Flow Controller FC662 10/11/18 JT 200 .0666 10/30/18 JT 207 3.4 Flow Controller MC056 10/11/18 JT 200 .0666 10/30/18 JT 209 4.4 Flow Controller MC149 10/11/18 JT 200 .0666 10/30/18 JT 207 3.4 Flow Controller SGS Bottle Order(s): TM-10818-188 Prep Date Room Temp(F)Bar Pres "Hg 10/11/18 70 29.92 24 of 51 JC7638344.2 SGS North America Inc. MS Volatiles QC Data Summaries Includes the following where applicable: • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries • Instrument Performance Checks (BFB) • Surrogate Recovery Summaries Dayton, NJ Section 5 25 of 51 JC763835 Method Blank Summary Page 1 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V5W1348-MB 5W33561.D 1 10/29/18 GP n/a n/a V5W1348 The QC reported here applies to the following samples:Method: TO-15 JC76383-1, JC76383-2, JC76383-3, JC76383-4 CAS No.Compound Result RL MDL Units Q Result RL Units 67-64-1 Acetone ND 0.20 0.11 ppbv ND 0.48 ug/m3 106-99-0 1,3-Butadiene ND 0.20 0.046 ppbv ND 0.44 ug/m3 71-43-2 Benzene ND 0.20 0.012 ppbv ND 0.64 ug/m3 75-27-4 Bromodichloromethane ND 0.20 0.027 ppbv ND 1.3 ug/m3 75-25-2 Bromoform ND 0.20 0.037 ppbv ND 2.1 ug/m3 74-83-9 Bromomethane ND 0.20 0.022 ppbv ND 0.78 ug/m3 593-60-2 Bromoethene ND 0.20 0.022 ppbv ND 0.87 ug/m3 100-44-7 Benzyl Chloride ND 0.20 0.057 ppbv ND 1.0 ug/m3 75-15-0 Carbon disulfide ND 0.20 0.024 ppbv ND 0.62 ug/m3 108-90-7 Chlorobenzene ND 0.20 0.026 ppbv ND 0.92 ug/m3 75-00-3 Chloroethane ND 0.20 0.048 ppbv ND 0.53 ug/m3 67-66-3 Chloroform ND 0.20 0.020 ppbv ND 0.98 ug/m3 74-87-3 Chloromethane ND 0.20 0.015 ppbv ND 0.41 ug/m3 107-05-1 3-Chloropropene ND 0.20 0.040 ppbv ND 0.63 ug/m3 95-49-8 2-Chlorotoluene ND 0.20 0.025 ppbv ND 1.0 ug/m3 56-23-5 Carbon tetrachloride ND 0.20 0.024 ppbv ND 1.3 ug/m3 110-82-7 Cyclohexane ND 0.20 0.022 ppbv ND 0.69 ug/m3 75-34-3 1,1-Dichloroethane ND 0.20 0.012 ppbv ND 0.81 ug/m3 75-35-4 1,1-Dichloroethylene ND 0.20 0.017 ppbv ND 0.79 ug/m3 106-93-4 1,2-Dibromoethane ND 0.20 0.018 ppbv ND 1.5 ug/m3 107-06-2 1,2-Dichloroethane ND 0.20 0.021 ppbv ND 0.81 ug/m3 78-87-5 1,2-Dichloropropane ND 0.20 0.019 ppbv ND 0.92 ug/m3 123-91-1 1,4-Dioxane ND 0.20 0.052 ppbv ND 0.72 ug/m3 75-71-8 Dichlorodifluoromethane ND 0.20 0.017 ppbv ND 0.99 ug/m3 124-48-1 Dibromochloromethane ND 0.20 0.033 ppbv ND 1.7 ug/m3 156-60-5 trans-1,2-Dichloroethylene ND 0.20 0.0073 ppbv ND 0.79 ug/m3 156-59-2 cis-1,2-Dichloroethylene ND 0.20 0.012 ppbv ND 0.79 ug/m3 10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.020 ppbv ND 0.91 ug/m3 541-73-1 m-Dichlorobenzene ND 0.20 0.019 ppbv ND 1.2 ug/m3 95-50-1 o-Dichlorobenzene ND 0.20 0.022 ppbv ND 1.2 ug/m3 106-46-7 p-Dichlorobenzene ND 0.20 0.018 ppbv ND 1.2 ug/m3 10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.020 ppbv ND 0.91 ug/m3 64-17-5 Ethanol ND 0.50 0.22 ppbv ND 0.94 ug/m3 100-41-4 Ethylbenzene ND 0.20 0.015 ppbv ND 0.87 ug/m3 141-78-6 Ethyl Acetate ND 0.20 0.038 ppbv ND 0.72 ug/m3 622-96-8 4-Ethyltoluene ND 0.20 0.030 ppbv ND 0.98 ug/m3 26 of 51 JC7638355.1.1 Method Blank Summary Page 2 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V5W1348-MB 5W33561.D 1 10/29/18 GP n/a n/a V5W1348 The QC reported here applies to the following samples:Method: TO-15 JC76383-1, JC76383-2, JC76383-3, JC76383-4 CAS No.Compound Result RL MDL Units Q Result RL Units 76-13-1 Freon 113 ND 0.20 0.017 ppbv ND 1.5 ug/m3 76-14-2 Freon 114 ND 0.20 0.019 ppbv ND 1.4 ug/m3 142-82-5 Heptane ND 0.20 0.018 ppbv ND 0.82 ug/m3 87-68-3 Hexachlorobutadiene ND 0.20 0.046 ppbv ND 2.1 ug/m3 110-54-3 Hexane ND 0.20 0.011 ppbv ND 0.70 ug/m3 591-78-6 2-Hexanone ND 0.20 0.036 ppbv ND 0.82 ug/m3 67-63-0 Isopropyl Alcohol ND 0.20 0.065 ppbv ND 0.49 ug/m3 75-09-2 Methylene chloride ND 0.20 0.015 ppbv ND 0.69 ug/m3 78-93-3 Methyl ethyl ketone ND 0.20 0.042 ppbv ND 0.59 ug/m3 108-10-1 Methyl Isobutyl Ketone ND 0.20 0.036 ppbv ND 0.82 ug/m3 1634-04-4 Methyl Tert Butyl Ether ND 0.20 0.019 ppbv ND 0.72 ug/m3 80-62-6 Methylmethacrylate ND 0.20 0.033 ppbv ND 0.82 ug/m3 115-07-1 Propylene ND 0.50 0.016 ppbv ND 0.86 ug/m3 100-42-5 Styrene ND 0.20 0.019 ppbv ND 0.85 ug/m3 71-55-6 1,1,1-Trichloroethane ND 0.20 0.033 ppbv ND 1.1 ug/m3 79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.027 ppbv ND 1.4 ug/m3 79-00-5 1,1,2-Trichloroethane ND 0.20 0.030 ppbv ND 1.1 ug/m3 120-82-1 1,2,4-Trichlorobenzene ND 0.20 0.089 ppbv ND 1.5 ug/m3 95-63-6 1,2,4-Trimethylbenzene ND 0.20 0.033 ppbv ND 0.98 ug/m3 108-67-8 1,3,5-Trimethylbenzene ND 0.20 0.034 ppbv ND 0.98 ug/m3 540-84-1 2,2,4-Trimethylpentane ND 0.20 0.022 ppbv ND 0.93 ug/m3 75-65-0 Tertiary Butyl Alcohol ND 0.20 0.014 ppbv ND 0.61 ug/m3 127-18-4 Tetrachloroethylene ND 0.040 0.031 ppbv ND 0.27 ug/m3 109-99-9 Tetrahydrofuran ND 0.20 0.050 ppbv ND 0.59 ug/m3 108-88-3 Toluene ND 0.20 0.014 ppbv ND 0.75 ug/m3 79-01-6 Trichloroethylene ND 0.040 0.019 ppbv ND 0.21 ug/m3 75-69-4 Trichlorofluoromethane ND 0.20 0.028 ppbv ND 1.1 ug/m3 75-01-4 Vinyl chloride ND 0.20 0.022 ppbv ND 0.51 ug/m3 108-05-4 Vinyl Acetate ND 0.20 0.034 ppbv ND 0.70 ug/m3 m,p-Xylene ND 0.20 0.034 ppbv ND 0.87 ug/m3 95-47-6 o-Xylene ND 0.20 0.017 ppbv ND 0.87 ug/m3 1330-20-7 Xylenes (total)ND 0.20 0.017 ppbv ND 0.87 ug/m3 27 of 51 JC7638355.1.1 Method Blank Summary Page 3 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V5W1348-MB 5W33561.D 1 10/29/18 GP n/a n/a V5W1348 The QC reported here applies to the following samples:Method: TO-15 JC76383-1, JC76383-2, JC76383-3, JC76383-4 CAS No.Surrogate Recoveries Limits 460-00-4 4-Bromofluorobenzene 90%65-128% 28 of 51 JC7638355.1.1 Method Blank Summary Page 1 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-MB 6W08434.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here applies to the following samples:Method: TO-15 V6W320-SCC CAS No.Compound Result RL MDL Units Q Result RL Units 67-64-1 Acetone ND 0.20 0.11 ppbv ND 0.48 ug/m3 106-99-0 1,3-Butadiene ND 0.20 0.046 ppbv ND 0.44 ug/m3 71-43-2 Benzene ND 0.20 0.012 ppbv ND 0.64 ug/m3 75-27-4 Bromodichloromethane ND 0.20 0.027 ppbv ND 1.3 ug/m3 75-25-2 Bromoform ND 0.20 0.037 ppbv ND 2.1 ug/m3 74-83-9 Bromomethane ND 0.20 0.022 ppbv ND 0.78 ug/m3 593-60-2 Bromoethene ND 0.20 0.022 ppbv ND 0.87 ug/m3 100-44-7 Benzyl Chloride ND 0.20 0.057 ppbv ND 1.0 ug/m3 75-15-0 Carbon disulfide ND 0.20 0.024 ppbv ND 0.62 ug/m3 108-90-7 Chlorobenzene ND 0.20 0.026 ppbv ND 0.92 ug/m3 75-00-3 Chloroethane ND 0.20 0.048 ppbv ND 0.53 ug/m3 67-66-3 Chloroform ND 0.20 0.020 ppbv ND 0.98 ug/m3 74-87-3 Chloromethane ND 0.20 0.015 ppbv ND 0.41 ug/m3 107-05-1 3-Chloropropene ND 0.20 0.040 ppbv ND 0.63 ug/m3 95-49-8 2-Chlorotoluene ND 0.20 0.025 ppbv ND 1.0 ug/m3 56-23-5 Carbon tetrachloride ND 0.20 0.024 ppbv ND 1.3 ug/m3 110-82-7 Cyclohexane ND 0.20 0.022 ppbv ND 0.69 ug/m3 75-34-3 1,1-Dichloroethane ND 0.20 0.012 ppbv ND 0.81 ug/m3 75-35-4 1,1-Dichloroethylene ND 0.20 0.017 ppbv ND 0.79 ug/m3 106-93-4 1,2-Dibromoethane ND 0.20 0.018 ppbv ND 1.5 ug/m3 107-06-2 1,2-Dichloroethane ND 0.20 0.021 ppbv ND 0.81 ug/m3 78-87-5 1,2-Dichloropropane ND 0.20 0.019 ppbv ND 0.92 ug/m3 123-91-1 1,4-Dioxane ND 0.20 0.052 ppbv ND 0.72 ug/m3 75-71-8 Dichlorodifluoromethane ND 0.20 0.017 ppbv ND 0.99 ug/m3 124-48-1 Dibromochloromethane ND 0.20 0.033 ppbv ND 1.7 ug/m3 156-60-5 trans-1,2-Dichloroethylene ND 0.20 0.0073 ppbv ND 0.79 ug/m3 156-59-2 cis-1,2-Dichloroethylene ND 0.20 0.012 ppbv ND 0.79 ug/m3 10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.020 ppbv ND 0.91 ug/m3 541-73-1 m-Dichlorobenzene ND 0.20 0.019 ppbv ND 1.2 ug/m3 95-50-1 o-Dichlorobenzene ND 0.20 0.022 ppbv ND 1.2 ug/m3 106-46-7 p-Dichlorobenzene ND 0.20 0.018 ppbv ND 1.2 ug/m3 10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.020 ppbv ND 0.91 ug/m3 64-17-5 Ethanol ND 0.50 0.22 ppbv ND 0.94 ug/m3 100-41-4 Ethylbenzene ND 0.20 0.015 ppbv ND 0.87 ug/m3 141-78-6 Ethyl Acetate ND 0.20 0.038 ppbv ND 0.72 ug/m3 622-96-8 4-Ethyltoluene ND 0.20 0.030 ppbv ND 0.98 ug/m3 29 of 51 JC7638355.1.2 Method Blank Summary Page 2 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-MB 6W08434.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here applies to the following samples:Method: TO-15 V6W320-SCC CAS No.Compound Result RL MDL Units Q Result RL Units 76-13-1 Freon 113 ND 0.20 0.017 ppbv ND 1.5 ug/m3 76-14-2 Freon 114 ND 0.20 0.019 ppbv ND 1.4 ug/m3 142-82-5 Heptane ND 0.20 0.018 ppbv ND 0.82 ug/m3 87-68-3 Hexachlorobutadiene ND 0.20 0.046 ppbv ND 2.1 ug/m3 110-54-3 Hexane ND 0.20 0.011 ppbv ND 0.70 ug/m3 591-78-6 2-Hexanone ND 0.20 0.036 ppbv ND 0.82 ug/m3 67-63-0 Isopropyl Alcohol ND 0.20 0.065 ppbv ND 0.49 ug/m3 75-09-2 Methylene chloride ND 0.20 0.015 ppbv ND 0.69 ug/m3 78-93-3 Methyl ethyl ketone ND 0.20 0.042 ppbv ND 0.59 ug/m3 108-10-1 Methyl Isobutyl Ketone ND 0.20 0.036 ppbv ND 0.82 ug/m3 1634-04-4 Methyl Tert Butyl Ether ND 0.20 0.019 ppbv ND 0.72 ug/m3 80-62-6 Methylmethacrylate ND 0.20 0.033 ppbv ND 0.82 ug/m3 115-07-1 Propylene ND 0.50 0.016 ppbv ND 0.86 ug/m3 100-42-5 Styrene ND 0.20 0.019 ppbv ND 0.85 ug/m3 71-55-6 1,1,1-Trichloroethane ND 0.20 0.033 ppbv ND 1.1 ug/m3 79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.027 ppbv ND 1.4 ug/m3 79-00-5 1,1,2-Trichloroethane ND 0.20 0.030 ppbv ND 1.1 ug/m3 120-82-1 1,2,4-Trichlorobenzene ND 0.20 0.089 ppbv ND 1.5 ug/m3 95-63-6 1,2,4-Trimethylbenzene ND 0.20 0.033 ppbv ND 0.98 ug/m3 108-67-8 1,3,5-Trimethylbenzene ND 0.20 0.034 ppbv ND 0.98 ug/m3 540-84-1 2,2,4-Trimethylpentane ND 0.20 0.022 ppbv ND 0.93 ug/m3 75-65-0 Tertiary Butyl Alcohol ND 0.20 0.014 ppbv ND 0.61 ug/m3 127-18-4 Tetrachloroethylene ND 0.040 0.031 ppbv ND 0.27 ug/m3 109-99-9 Tetrahydrofuran ND 0.20 0.050 ppbv ND 0.59 ug/m3 108-88-3 Toluene ND 0.20 0.014 ppbv ND 0.75 ug/m3 79-01-6 Trichloroethylene ND 0.040 0.019 ppbv ND 0.21 ug/m3 75-69-4 Trichlorofluoromethane ND 0.20 0.028 ppbv ND 1.1 ug/m3 75-01-4 Vinyl chloride ND 0.20 0.022 ppbv ND 0.51 ug/m3 108-05-4 Vinyl Acetate ND 0.20 0.034 ppbv ND 0.70 ug/m3 m,p-Xylene ND 0.20 0.034 ppbv ND 0.87 ug/m3 95-47-6 o-Xylene ND 0.20 0.017 ppbv ND 0.87 ug/m3 1330-20-7 Xylenes (total)ND 0.20 0.017 ppbv ND 0.87 ug/m3 30 of 51 JC7638355.1.2 Method Blank Summary Page 3 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-MB 6W08434.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here applies to the following samples:Method: TO-15 V6W320-SCC CAS No.Surrogate Recoveries Limits 460-00-4 4-Bromofluorobenzene 99%65-128% 31 of 51 JC7638355.1.2 Blank Spike/Blank Spike Duplicate Summary Page 1 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V5W1348-BS 5W33558.D 1 10/29/18 GP n/a n/a V5W1348 V5W1348-BSD 5W33559.D 1 10/29/18 GP n/a n/a V5W1348 The QC reported here applies to the following samples:Method: TO-15 JC76383-1, JC76383-2, JC76383-3, JC76383-4 Spike BSP BSP BSD BSD Limits CAS No.Compound ppbv ppbv %ppbv %RPD Rec/RPD 67-64-1 Acetone 10 9.9 99 9.7 97 2 70-130/30 106-99-0 1,3-Butadiene 10 12.2 122 11.6 116 5 70-130/30 71-43-2 Benzene 10 9.4 94 9.5 95 1 70-130/30 75-27-4 Bromodichloromethane 10 10.1 101 10.1 101 0 70-130/30 75-25-2 Bromoform 10 13.6 136* a 13.7 137* a 1 70-130/30 74-83-9 Bromomethane 10 11.7 117 11.2 112 4 70-130/30 593-60-2 Bromoethene 10 12.5 125 12.1 121 3 70-130/30 100-44-7 Benzyl Chloride 10 13.6 136* a 13.6 136* a 0 70-130/30 75-15-0 Carbon disulfide 10 9.9 99 10 100 1 70-130/30 108-90-7 Chlorobenzene 10 10.3 103 10.4 104 1 70-130/30 75-00-3 Chloroethane 10 12.7 127 12.0 120 6 70-130/30 67-66-3 Chloroform 10 9.6 96 9.7 97 1 70-130/30 74-87-3 Chloromethane 10 10.7 107 10.4 104 3 70-130/30 107-05-1 3-Chloropropene 10 10.9 109 10.9 109 0 70-130/30 95-49-8 2-Chlorotoluene 10 11.9 119 11.5 115 3 70-130/30 56-23-5 Carbon tetrachloride 10 11.5 115 11.5 115 0 70-130/30 110-82-7 Cyclohexane 10 9.2 92 9.4 94 2 70-130/30 75-34-3 1,1-Dichloroethane 10 9.4 94 9.5 95 1 70-130/30 75-35-4 1,1-Dichloroethylene 10 9.8 98 9.8 98 0 70-130/30 106-93-4 1,2-Dibromoethane 10 10 100 10.4 104 4 70-130/30 107-06-2 1,2-Dichloroethane 10 9.7 97 10 100 3 70-130/30 78-87-5 1,2-Dichloropropane 10 9.3 93 9.4 94 1 70-130/30 123-91-1 1,4-Dioxane 10 10.9 109 10.9 109 0 70-130/30 75-71-8 Dichlorodifluoromethane 10 10.5 105 10.1 101 4 70-130/30 124-48-1 Dibromochloromethane 10 10.7 107 11.2 112 5 70-130/30 156-60-5 trans-1,2-Dichloroethylene 10 9.6 96 9.6 96 0 70-130/30 156-59-2 cis-1,2-Dichloroethylene 10 9.4 94 9.5 95 1 70-130/30 10061-01-5 cis-1,3-Dichloropropene 10 10.3 103 10.5 105 2 70-130/30 541-73-1 m-Dichlorobenzene 10 10.4 104 10.3 103 1 70-130/30 95-50-1 o-Dichlorobenzene 10 10.6 106 10.4 104 2 70-130/30 106-46-7 p-Dichlorobenzene 10 9.6 96 9.4 94 2 70-130/30 10061-02-6 trans-1,3-Dichloropropene 10 10.5 105 10.8 108 3 70-130/30 64-17-5 Ethanol 10 10.3 103 9.9 99 4 70-130/30 100-41-4 Ethylbenzene 10 10.4 104 10.4 104 0 70-130/30 141-78-6 Ethyl Acetate 10 10.6 106 11.0 110 4 70-130/30 622-96-8 4-Ethyltoluene 10 10.9 109 10.6 106 3 70-130/30 * = Outside of Control Limits. 32 of 51 JC7638355.2.1 Blank Spike/Blank Spike Duplicate Summary Page 2 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V5W1348-BS 5W33558.D 1 10/29/18 GP n/a n/a V5W1348 V5W1348-BSD 5W33559.D 1 10/29/18 GP n/a n/a V5W1348 The QC reported here applies to the following samples:Method: TO-15 JC76383-1, JC76383-2, JC76383-3, JC76383-4 Spike BSP BSP BSD BSD Limits CAS No.Compound ppbv ppbv %ppbv %RPD Rec/RPD 76-13-1 Freon 113 10 10 100 10 100 0 70-130/30 76-14-2 Freon 114 10 11.2 112 10.9 109 3 70-130/30 142-82-5 Heptane 10 10.3 103 10.4 104 1 70-130/30 87-68-3 Hexachlorobutadiene 10 11.0 110 10.7 107 3 70-130/30 110-54-3 Hexane 10 9.4 94 9.6 96 2 70-130/30 591-78-6 2-Hexanone 10 10.1 101 10.3 103 2 70-130/30 67-63-0 Isopropyl Alcohol 10 9.9 99 10.0 100 1 70-130/30 75-09-2 Methylene chloride 10 8.8 88 8.8 88 0 70-130/30 78-93-3 Methyl ethyl ketone 10 10.3 103 10.3 103 0 70-130/30 108-10-1 Methyl Isobutyl Ketone 10 10.7 107 10.8 108 1 70-130/30 1634-04-4 Methyl Tert Butyl Ether 10 9.7 97 9.9 99 2 70-130/30 80-62-6 Methylmethacrylate 10 10.8 108 11.0 110 2 70-130/30 115-07-1 Propylene 10 9.8 98 9.3 93 5 70-130/30 100-42-5 Styrene 10 11.2 112 10.9 109 3 70-130/30 71-55-6 1,1,1-Trichloroethane 10 10.4 104 10.4 104 0 70-130/30 79-34-5 1,1,2,2-Tetrachloroethane 10 10.6 106 10.4 104 2 70-130/30 79-00-5 1,1,2-Trichloroethane 10 9.9 99 10.1 101 2 70-130/30 120-82-1 1,2,4-Trichlorobenzene 10 11.4 114 10.8 108 5 70-130/30 95-63-6 1,2,4-Trimethylbenzene 10 10.9 109 10.6 106 3 70-130/30 108-67-8 1,3,5-Trimethylbenzene 10 10.7 107 10.4 104 3 70-130/30 540-84-1 2,2,4-Trimethylpentane 10 9.9 99 9.8 98 1 70-130/30 75-65-0 Tertiary Butyl Alcohol 10 11.2 112 11.3 113 1 70-130/30 127-18-4 Tetrachloroethylene 10 9.9 99 10.1 101 2 70-130/30 109-99-9 Tetrahydrofuran 10 9.8 98 9.8 98 0 70-130/30 108-88-3 Toluene 10 9.5 95 9.9 99 4 70-130/30 79-01-6 Trichloroethylene 10 9.9 99 10 100 1 70-130/30 75-69-4 Trichlorofluoromethane 10 11.3 113 11.1 111 2 70-130/30 75-01-4 Vinyl chloride 10 11.5 115 11.3 113 2 70-130/30 108-05-4 Vinyl Acetate 10 9.7 97 9.8 98 1 70-130/30 m,p-Xylene 20 21.2 106 21.0 105 1 70-130/30 95-47-6 o-Xylene 10 11.2 112 11.0 110 2 70-130/30 1330-20-7 Xylenes (total)30 32.4 108 32.0 107 1 70-130/30 * = Outside of Control Limits. 33 of 51 JC7638355.2.1 Blank Spike/Blank Spike Duplicate Summary Page 3 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V5W1348-BS 5W33558.D 1 10/29/18 GP n/a n/a V5W1348 V5W1348-BSD 5W33559.D 1 10/29/18 GP n/a n/a V5W1348 The QC reported here applies to the following samples:Method: TO-15 JC76383-1, JC76383-2, JC76383-3, JC76383-4 CAS No.Surrogate Recoveries BSP BSD Limits 460-00-4 4-Bromofluorobenzene 112%108%65-128% (a) High percent recoveries and no associated positive reported in the QC batch. * = Outside of Control Limits. 34 of 51 JC7638355.2.1 Blank Spike/Blank Spike Duplicate Summary Page 1 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-BS 6W08431.D 1 10/04/18 GP n/a n/a V6W320 V6W320-BSD 6W08432.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here applies to the following samples:Method: TO-15 V6W320-SCC Spike BSP BSP BSD BSD Limits CAS No.Compound ppbv ppbv %ppbv %RPD Rec/RPD 67-64-1 Acetone 10 8.7 87 8.4 84 4 70-130/30 106-99-0 1,3-Butadiene 10 9.6 96 9.4 94 2 70-130/30 71-43-2 Benzene 10 10.2 102 9.9 99 3 70-130/30 75-27-4 Bromodichloromethane 10 11.0 110 10.7 107 3 70-130/30 75-25-2 Bromoform 10 15.2 152* a 14.8 148* a 3 70-130/30 74-83-9 Bromomethane 10 10.4 104 10.3 103 1 70-130/30 593-60-2 Bromoethene 10 10.9 109 10.6 106 3 70-130/30 100-44-7 Benzyl Chloride 10 14.1 141* a 13.9 139* a 1 70-130/30 75-15-0 Carbon disulfide 10 9.2 92 9.0 90 2 70-130/30 108-90-7 Chlorobenzene 10 11.2 112 10.9 109 3 70-130/30 75-00-3 Chloroethane 10 10.3 103 9.9 99 4 70-130/30 67-66-3 Chloroform 10 10.3 103 10.0 100 3 70-130/30 74-87-3 Chloromethane 10 9.4 94 9.2 92 2 70-130/30 107-05-1 3-Chloropropene 10 11.6 116 11.3 113 3 70-130/30 95-49-8 2-Chlorotoluene 10 12.2 122 12.1 121 1 70-130/30 56-23-5 Carbon tetrachloride 10 11.5 115 11.2 112 3 70-130/30 110-82-7 Cyclohexane 10 9.9 99 9.6 96 3 70-130/30 75-34-3 1,1-Dichloroethane 10 9.6 96 9.3 93 3 70-130/30 75-35-4 1,1-Dichloroethylene 10 9.2 92 8.9 89 3 70-130/30 106-93-4 1,2-Dibromoethane 10 10.9 109 10.6 106 3 70-130/30 107-06-2 1,2-Dichloroethane 10 9.5 95 9.1 91 4 70-130/30 78-87-5 1,2-Dichloropropane 10 10 100 9.6 96 4 70-130/30 123-91-1 1,4-Dioxane 10 11.7 117 11.3 113 3 70-130/30 75-71-8 Dichlorodifluoromethane 10 9.8 98 9.7 97 1 70-130/30 124-48-1 Dibromochloromethane 10 12.8 128 12.6 126 2 70-130/30 156-60-5 trans-1,2-Dichloroethylene 10 9.3 93 9.0 90 3 70-130/30 156-59-2 cis-1,2-Dichloroethylene 10 9.8 98 9.5 95 3 70-130/30 10061-01-5 cis-1,3-Dichloropropene 10 10.9 109 10.6 106 3 70-130/30 541-73-1 m-Dichlorobenzene 10 12.0 120 11.9 119 1 70-130/30 95-50-1 o-Dichlorobenzene 10 11.6 116 11.5 115 1 70-130/30 106-46-7 p-Dichlorobenzene 10 11.5 115 11.5 115 0 70-130/30 10061-02-6 trans-1,3-Dichloropropene 10 10.8 108 10.5 105 3 70-130/30 64-17-5 Ethanol 10 9.3 93 9.0 90 3 70-130/30 100-41-4 Ethylbenzene 10 11.4 114 11.1 111 3 70-130/30 141-78-6 Ethyl Acetate 10 10.9 109 10.4 104 5 70-130/30 622-96-8 4-Ethyltoluene 10 12.0 120 11.9 119 1 70-130/30 * = Outside of Control Limits. 35 of 51 JC7638355.2.2 Blank Spike/Blank Spike Duplicate Summary Page 2 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-BS 6W08431.D 1 10/04/18 GP n/a n/a V6W320 V6W320-BSD 6W08432.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here applies to the following samples:Method: TO-15 V6W320-SCC Spike BSP BSP BSD BSD Limits CAS No.Compound ppbv ppbv %ppbv %RPD Rec/RPD 76-13-1 Freon 113 10 9.8 98 9.6 96 2 70-130/30 76-14-2 Freon 114 10 10.9 109 10.7 107 2 70-130/30 142-82-5 Heptane 10 10.6 106 10.3 103 3 70-130/30 87-68-3 Hexachlorobutadiene 10 12.2 122 12.2 122 0 70-130/30 110-54-3 Hexane 10 9.4 94 9.1 91 3 70-130/30 591-78-6 2-Hexanone 10 9.6 96 9.4 94 2 70-130/30 67-63-0 Isopropyl Alcohol 10 8.0 80 7.7 77 4 70-130/30 75-09-2 Methylene chloride 10 8.9 89 8.7 87 2 70-130/30 78-93-3 Methyl ethyl ketone 10 10.4 104 10.1 101 3 70-130/30 108-10-1 Methyl Isobutyl Ketone 10 10.0 100 9.8 98 2 70-130/30 1634-04-4 Methyl Tert Butyl Ether 10 9.9 99 9.7 97 2 70-130/30 80-62-6 Methylmethacrylate 10 10.8 108 10.5 105 3 70-130/30 115-07-1 Propylene 10 8.6 86 8.3 83 4 70-130/30 100-42-5 Styrene 10 12.4 124 12.2 122 2 70-130/30 71-55-6 1,1,1-Trichloroethane 10 11.2 112 10.9 109 3 70-130/30 79-34-5 1,1,2,2-Tetrachloroethane 10 11.7 117 11.4 114 3 70-130/30 79-00-5 1,1,2-Trichloroethane 10 10.9 109 10.7 107 2 70-130/30 120-82-1 1,2,4-Trichlorobenzene 10 9.7 97 9.6 96 1 70-130/30 95-63-6 1,2,4-Trimethylbenzene 10 12.3 123 12.2 122 1 70-130/30 108-67-8 1,3,5-Trimethylbenzene 10 12.2 122 11.9 119 2 70-130/30 540-84-1 2,2,4-Trimethylpentane 10 9.7 97 9.3 93 4 70-130/30 75-65-0 Tertiary Butyl Alcohol 10 9.8 98 9.6 96 2 70-130/30 127-18-4 Tetrachloroethylene 10 9.7 97 9.6 96 1 70-130/30 109-99-9 Tetrahydrofuran 10 10.1 101 9.9 99 2 70-130/30 108-88-3 Toluene 10 10.4 104 10.3 103 1 70-130/30 79-01-6 Trichloroethylene 10 10.6 106 10.3 103 3 70-130/30 75-69-4 Trichlorofluoromethane 10 9.9 99 9.7 97 2 70-130/30 75-01-4 Vinyl chloride 10 10 100 9.8 98 2 70-130/30 108-05-4 Vinyl Acetate 10 11.2 112 10.8 108 4 70-130/30 m,p-Xylene 20 22.9 115 22.5 113 2 70-130/30 95-47-6 o-Xylene 10 11.6 116 11.4 114 2 70-130/30 1330-20-7 Xylenes (total)30 34.6 115 33.9 113 2 70-130/30 * = Outside of Control Limits. 36 of 51 JC7638355.2.2 Blank Spike/Blank Spike Duplicate Summary Page 3 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-BS 6W08431.D 1 10/04/18 GP n/a n/a V6W320 V6W320-BSD 6W08432.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here applies to the following samples:Method: TO-15 V6W320-SCC CAS No.Surrogate Recoveries BSP BSD Limits 460-00-4 4-Bromofluorobenzene 105%106%65-128% (a) High percent recoveries and no associated positive reported in the QC batch. * = Outside of Control Limits. 37 of 51 JC7638355.2.2 Duplicate Summary Page 1 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch JC76488-1DUP 5W33564.D 1 10/29/18 GP n/a n/a V5W1348 JC76488-1 5W33563.D 1 10/29/18 GP n/a n/a V5W1348 The QC reported here applies to the following samples:Method: TO-15 JC76383-1, JC76383-2, JC76383-3, JC76383-4 JC76488-1 DUP CAS No.Compound ppbv Q ppbv Q RPD Limits 67-64-1 Acetone 3.2 3.1 3 25 106-99-0 1,3-Butadiene ND ND nc 25 71-43-2 Benzene ND ND nc 25 75-27-4 Bromodichloromethane ND ND nc 25 75-25-2 Bromoform ND ND nc 25 74-83-9 Bromomethane ND ND nc 25 593-60-2 Bromoethene ND ND nc 25 100-44-7 Benzyl Chloride ND ND nc 25 75-15-0 Carbon disulfide ND ND nc 25 108-90-7 Chlorobenzene ND ND nc 25 75-00-3 Chloroethane ND ND nc 25 67-66-3 Chloroform 0.23 0.22 4 25 74-87-3 Chloromethane 0.40 0.44 10 25 107-05-1 3-Chloropropene ND ND nc 25 95-49-8 2-Chlorotoluene ND ND nc 25 56-23-5 Carbon tetrachloride ND ND nc 25 110-82-7 Cyclohexane ND ND nc 25 75-34-3 1,1-Dichloroethane 0.45 0.45 0 25 75-35-4 1,1-Dichloroethylene 0.16 J 0.16 J 0 25 106-93-4 1,2-Dibromoethane ND ND nc 25 107-06-2 1,2-Dichloroethane ND ND nc 25 78-87-5 1,2-Dichloropropane ND ND nc 25 123-91-1 1,4-Dioxane ND ND nc 25 75-71-8 Dichlorodifluoromethane 0.45 0.46 2 25 124-48-1 Dibromochloromethane ND ND nc 25 156-60-5 trans-1,2-Dichloroethylene ND ND nc 25 156-59-2 cis-1,2-Dichloroethylene 0.58 0.57 2 25 10061-01-5 cis-1,3-Dichloropropene ND ND nc 25 541-73-1 m-Dichlorobenzene ND ND nc 25 95-50-1 o-Dichlorobenzene ND ND nc 25 106-46-7 p-Dichlorobenzene ND ND nc 25 10061-02-6 trans-1,3-Dichloropropene ND ND nc 25 64-17-5 Ethanol 0.97 0.81 18 25 100-41-4 Ethylbenzene ND ND nc 25 141-78-6 Ethyl Acetate 9.2 9.3 1 25 622-96-8 4-Ethyltoluene ND ND nc 25 * = Outside of Control Limits. 38 of 51 JC7638355.3.1 Duplicate Summary Page 2 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch JC76488-1DUP 5W33564.D 1 10/29/18 GP n/a n/a V5W1348 JC76488-1 5W33563.D 1 10/29/18 GP n/a n/a V5W1348 The QC reported here applies to the following samples:Method: TO-15 JC76383-1, JC76383-2, JC76383-3, JC76383-4 JC76488-1 DUP CAS No.Compound ppbv Q ppbv Q RPD Limits 76-13-1 Freon 113 0.11 J 0.11 J 0 25 76-14-2 Freon 114 ND ND nc 25 142-82-5 Heptane ND ND nc 25 87-68-3 Hexachlorobutadiene ND ND nc 25 110-54-3 Hexane ND ND nc 25 591-78-6 2-Hexanone ND ND nc 25 67-63-0 Isopropyl Alcohol ND ND nc 25 75-09-2 Methylene chloride 0.31 0.32 3 25 78-93-3 Methyl ethyl ketone 1.0 0.95 5 25 108-10-1 Methyl Isobutyl Ketone ND ND nc 25 1634-04-4 Methyl Tert Butyl Ether ND ND nc 25 80-62-6 Methylmethacrylate ND ND nc 25 115-07-1 Propylene ND ND nc 25 100-42-5 Styrene ND ND nc 25 71-55-6 1,1,1-Trichloroethane ND ND nc 25 79-34-5 1,1,2,2-Tetrachloroethane ND ND nc 25 79-00-5 1,1,2-Trichloroethane ND ND nc 25 120-82-1 1,2,4-Trichlorobenzene ND ND nc 25 95-63-6 1,2,4-Trimethylbenzene ND ND nc 25 108-67-8 1,3,5-Trimethylbenzene ND ND nc 25 540-84-1 2,2,4-Trimethylpentane ND ND nc 25 75-65-0 Tertiary Butyl Alcohol ND ND nc 25 127-18-4 Tetrachloroethylene ND ND nc 25 109-99-9 Tetrahydrofuran 1.2 1.1 9 25 108-88-3 Toluene ND ND nc 25 79-01-6 Trichloroethylene 0.27 0.27 0 25 75-69-4 Trichlorofluoromethane 0.33 0.36 9 25 75-01-4 Vinyl chloride ND ND nc 25 108-05-4 Vinyl Acetate 1.4 ND 200* a 25 m,p-Xylene ND ND nc 25 95-47-6 o-Xylene ND ND nc 25 1330-20-7 Xylenes (total)ND ND nc 25 * = Outside of Control Limits. 39 of 51 JC7638355.3.1 Duplicate Summary Page 3 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch JC76488-1DUP 5W33564.D 1 10/29/18 GP n/a n/a V5W1348 JC76488-1 5W33563.D 1 10/29/18 GP n/a n/a V5W1348 The QC reported here applies to the following samples:Method: TO-15 JC76383-1, JC76383-2, JC76383-3, JC76383-4 CAS No.Surrogate Recoveries DUP JC76488-1 Limits 460-00-4 4-Bromofluorobenzene 100%101%65-128% (a) High RPD due to low concentration of hit * = Outside of Control Limits. 40 of 51 JC7638355.3.1 Summa Cleaning Certification Page 1 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-SCC 6W08435.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here (Summa A429) applies to the following samples:Method: TO-15 Batch CP10018 cleaned 10/02/18: JC76383-2(M328), JC76383-3(A599), JC76383-4(A488) CAS No.Compound Result RL MDL Units Q Result RL Units 67-64-1 Acetone ND 0.20 0.11 ppbv ND 0.48 ug/m3 106-99-0 1,3-Butadiene ND 0.20 0.046 ppbv ND 0.44 ug/m3 71-43-2 Benzene ND 0.20 0.012 ppbv ND 0.64 ug/m3 75-27-4 Bromodichloromethane ND 0.20 0.027 ppbv ND 1.3 ug/m3 75-25-2 Bromoform ND 0.20 0.037 ppbv ND 2.1 ug/m3 74-83-9 Bromomethane ND 0.20 0.022 ppbv ND 0.78 ug/m3 593-60-2 Bromoethene ND 0.20 0.022 ppbv ND 0.87 ug/m3 100-44-7 Benzyl Chloride ND 0.20 0.057 ppbv ND 1.0 ug/m3 75-15-0 Carbon disulfide ND 0.20 0.024 ppbv ND 0.62 ug/m3 108-90-7 Chlorobenzene ND 0.20 0.026 ppbv ND 0.92 ug/m3 75-00-3 Chloroethane ND 0.20 0.048 ppbv ND 0.53 ug/m3 67-66-3 Chloroform ND 0.20 0.020 ppbv ND 0.98 ug/m3 74-87-3 Chloromethane ND 0.20 0.015 ppbv ND 0.41 ug/m3 107-05-1 3-Chloropropene ND 0.20 0.040 ppbv ND 0.63 ug/m3 95-49-8 2-Chlorotoluene ND 0.20 0.025 ppbv ND 1.0 ug/m3 56-23-5 Carbon tetrachloride ND 0.20 0.024 ppbv ND 1.3 ug/m3 110-82-7 Cyclohexane ND 0.20 0.022 ppbv ND 0.69 ug/m3 75-34-3 1,1-Dichloroethane ND 0.20 0.012 ppbv ND 0.81 ug/m3 75-35-4 1,1-Dichloroethylene ND 0.20 0.017 ppbv ND 0.79 ug/m3 106-93-4 1,2-Dibromoethane ND 0.20 0.018 ppbv ND 1.5 ug/m3 107-06-2 1,2-Dichloroethane ND 0.20 0.021 ppbv ND 0.81 ug/m3 78-87-5 1,2-Dichloropropane ND 0.20 0.019 ppbv ND 0.92 ug/m3 123-91-1 1,4-Dioxane ND 0.20 0.052 ppbv ND 0.72 ug/m3 75-71-8 Dichlorodifluoromethane ND 0.20 0.017 ppbv ND 0.99 ug/m3 124-48-1 Dibromochloromethane ND 0.20 0.033 ppbv ND 1.7 ug/m3 156-60-5 trans-1,2-Dichloroethylene ND 0.20 0.0073 ppbv ND 0.79 ug/m3 156-59-2 cis-1,2-Dichloroethylene ND 0.20 0.012 ppbv ND 0.79 ug/m3 10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.020 ppbv ND 0.91 ug/m3 541-73-1 m-Dichlorobenzene ND 0.20 0.019 ppbv ND 1.2 ug/m3 95-50-1 o-Dichlorobenzene ND 0.20 0.022 ppbv ND 1.2 ug/m3 106-46-7 p-Dichlorobenzene ND 0.20 0.018 ppbv ND 1.2 ug/m3 10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.020 ppbv ND 0.91 ug/m3 64-17-5 Ethanol ND 0.50 0.22 ppbv ND 0.94 ug/m3 100-41-4 Ethylbenzene ND 0.20 0.015 ppbv ND 0.87 ug/m3 141-78-6 Ethyl Acetate ND 0.20 0.038 ppbv ND 0.72 ug/m3 622-96-8 4-Ethyltoluene ND 0.20 0.030 ppbv ND 0.98 ug/m3 41 of 51 JC7638355.4.1 Summa Cleaning Certification Page 2 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-SCC 6W08435.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here (Summa A429) applies to the following samples:Method: TO-15 Batch CP10018 cleaned 10/02/18: JC76383-2(M328), JC76383-3(A599), JC76383-4(A488) CAS No.Compound Result RL MDL Units Q Result RL Units 76-13-1 Freon 113 ND 0.20 0.017 ppbv ND 1.5 ug/m3 76-14-2 Freon 114 ND 0.20 0.019 ppbv ND 1.4 ug/m3 142-82-5 Heptane ND 0.20 0.018 ppbv ND 0.82 ug/m3 87-68-3 Hexachlorobutadiene ND 0.20 0.046 ppbv ND 2.1 ug/m3 110-54-3 Hexane ND 0.20 0.011 ppbv ND 0.70 ug/m3 591-78-6 2-Hexanone ND 0.20 0.036 ppbv ND 0.82 ug/m3 67-63-0 Isopropyl Alcohol ND 0.20 0.065 ppbv ND 0.49 ug/m3 75-09-2 Methylene chloride ND 0.20 0.015 ppbv ND 0.69 ug/m3 78-93-3 Methyl ethyl ketone ND 0.20 0.042 ppbv ND 0.59 ug/m3 108-10-1 Methyl Isobutyl Ketone ND 0.20 0.036 ppbv ND 0.82 ug/m3 1634-04-4 Methyl Tert Butyl Ether ND 0.20 0.019 ppbv ND 0.72 ug/m3 80-62-6 Methylmethacrylate ND 0.20 0.033 ppbv ND 0.82 ug/m3 115-07-1 Propylene ND 0.50 0.016 ppbv ND 0.86 ug/m3 100-42-5 Styrene ND 0.20 0.019 ppbv ND 0.85 ug/m3 71-55-6 1,1,1-Trichloroethane ND 0.20 0.033 ppbv ND 1.1 ug/m3 79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.027 ppbv ND 1.4 ug/m3 79-00-5 1,1,2-Trichloroethane ND 0.20 0.030 ppbv ND 1.1 ug/m3 120-82-1 1,2,4-Trichlorobenzene ND 0.20 0.089 ppbv ND 1.5 ug/m3 95-63-6 1,2,4-Trimethylbenzene ND 0.20 0.033 ppbv ND 0.98 ug/m3 108-67-8 1,3,5-Trimethylbenzene ND 0.20 0.034 ppbv ND 0.98 ug/m3 540-84-1 2,2,4-Trimethylpentane ND 0.20 0.022 ppbv ND 0.93 ug/m3 75-65-0 Tertiary Butyl Alcohol ND 0.20 0.014 ppbv ND 0.61 ug/m3 127-18-4 Tetrachloroethylene ND 0.040 0.031 ppbv ND 0.27 ug/m3 109-99-9 Tetrahydrofuran ND 0.20 0.050 ppbv ND 0.59 ug/m3 108-88-3 Toluene ND 0.20 0.014 ppbv ND 0.75 ug/m3 79-01-6 Trichloroethylene ND 0.040 0.019 ppbv ND 0.21 ug/m3 75-69-4 Trichlorofluoromethane ND 0.20 0.028 ppbv ND 1.1 ug/m3 75-01-4 Vinyl chloride ND 0.20 0.022 ppbv ND 0.51 ug/m3 108-05-4 Vinyl Acetate ND 0.20 0.034 ppbv ND 0.70 ug/m3 m,p-Xylene ND 0.20 0.034 ppbv ND 0.87 ug/m3 95-47-6 o-Xylene ND 0.20 0.017 ppbv ND 0.87 ug/m3 1330-20-7 Xylenes (total)ND 0.20 0.017 ppbv ND 0.87 ug/m3 42 of 51 JC7638355.4.1 Summa Cleaning Certification Page 3 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-SCC 6W08435.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here (Summa A429) applies to the following samples:Method: TO-15 Batch CP10018 cleaned 10/02/18: JC76383-2(M328), JC76383-3(A599), JC76383-4(A488) CAS No.Surrogate Recoveries Limits 460-00-4 4-Bromofluorobenzene 99%65-128% 43 of 51 JC7638355.4.1 Summa Cleaning Certification Page 1 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-SCC 6W08436.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here (Summa A1207) applies to the following samples:Method: TO-15 Batch CP10016 cleaned 10/01/18: JC76383-1(A1251) CAS No.Compound Result RL MDL Units Q Result RL Units 67-64-1 Acetone ND 0.20 0.11 ppbv ND 0.48 ug/m3 106-99-0 1,3-Butadiene ND 0.20 0.046 ppbv ND 0.44 ug/m3 71-43-2 Benzene ND 0.20 0.012 ppbv ND 0.64 ug/m3 75-27-4 Bromodichloromethane ND 0.20 0.027 ppbv ND 1.3 ug/m3 75-25-2 Bromoform ND 0.20 0.037 ppbv ND 2.1 ug/m3 74-83-9 Bromomethane ND 0.20 0.022 ppbv ND 0.78 ug/m3 593-60-2 Bromoethene ND 0.20 0.022 ppbv ND 0.87 ug/m3 100-44-7 Benzyl Chloride ND 0.20 0.057 ppbv ND 1.0 ug/m3 75-15-0 Carbon disulfide ND 0.20 0.024 ppbv ND 0.62 ug/m3 108-90-7 Chlorobenzene ND 0.20 0.026 ppbv ND 0.92 ug/m3 75-00-3 Chloroethane ND 0.20 0.048 ppbv ND 0.53 ug/m3 67-66-3 Chloroform ND 0.20 0.020 ppbv ND 0.98 ug/m3 74-87-3 Chloromethane ND 0.20 0.015 ppbv ND 0.41 ug/m3 107-05-1 3-Chloropropene ND 0.20 0.040 ppbv ND 0.63 ug/m3 95-49-8 2-Chlorotoluene ND 0.20 0.025 ppbv ND 1.0 ug/m3 56-23-5 Carbon tetrachloride ND 0.20 0.024 ppbv ND 1.3 ug/m3 110-82-7 Cyclohexane ND 0.20 0.022 ppbv ND 0.69 ug/m3 75-34-3 1,1-Dichloroethane ND 0.20 0.012 ppbv ND 0.81 ug/m3 75-35-4 1,1-Dichloroethylene ND 0.20 0.017 ppbv ND 0.79 ug/m3 106-93-4 1,2-Dibromoethane ND 0.20 0.018 ppbv ND 1.5 ug/m3 107-06-2 1,2-Dichloroethane ND 0.20 0.021 ppbv ND 0.81 ug/m3 78-87-5 1,2-Dichloropropane ND 0.20 0.019 ppbv ND 0.92 ug/m3 123-91-1 1,4-Dioxane ND 0.20 0.052 ppbv ND 0.72 ug/m3 75-71-8 Dichlorodifluoromethane ND 0.20 0.017 ppbv ND 0.99 ug/m3 124-48-1 Dibromochloromethane ND 0.20 0.033 ppbv ND 1.7 ug/m3 156-60-5 trans-1,2-Dichloroethylene ND 0.20 0.0073 ppbv ND 0.79 ug/m3 156-59-2 cis-1,2-Dichloroethylene ND 0.20 0.012 ppbv ND 0.79 ug/m3 10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.020 ppbv ND 0.91 ug/m3 541-73-1 m-Dichlorobenzene ND 0.20 0.019 ppbv ND 1.2 ug/m3 95-50-1 o-Dichlorobenzene ND 0.20 0.022 ppbv ND 1.2 ug/m3 106-46-7 p-Dichlorobenzene ND 0.20 0.018 ppbv ND 1.2 ug/m3 10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.020 ppbv ND 0.91 ug/m3 64-17-5 Ethanol ND 0.50 0.22 ppbv ND 0.94 ug/m3 100-41-4 Ethylbenzene ND 0.20 0.015 ppbv ND 0.87 ug/m3 141-78-6 Ethyl Acetate ND 0.20 0.038 ppbv ND 0.72 ug/m3 622-96-8 4-Ethyltoluene ND 0.20 0.030 ppbv ND 0.98 ug/m3 44 of 51 JC7638355.4.2 Summa Cleaning Certification Page 2 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-SCC 6W08436.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here (Summa A1207) applies to the following samples:Method: TO-15 Batch CP10016 cleaned 10/01/18: JC76383-1(A1251) CAS No.Compound Result RL MDL Units Q Result RL Units 76-13-1 Freon 113 ND 0.20 0.017 ppbv ND 1.5 ug/m3 76-14-2 Freon 114 ND 0.20 0.019 ppbv ND 1.4 ug/m3 142-82-5 Heptane ND 0.20 0.018 ppbv ND 0.82 ug/m3 87-68-3 Hexachlorobutadiene ND 0.20 0.046 ppbv ND 2.1 ug/m3 110-54-3 Hexane ND 0.20 0.011 ppbv ND 0.70 ug/m3 591-78-6 2-Hexanone ND 0.20 0.036 ppbv ND 0.82 ug/m3 67-63-0 Isopropyl Alcohol ND 0.20 0.065 ppbv ND 0.49 ug/m3 75-09-2 Methylene chloride ND 0.20 0.015 ppbv ND 0.69 ug/m3 78-93-3 Methyl ethyl ketone ND 0.20 0.042 ppbv ND 0.59 ug/m3 108-10-1 Methyl Isobutyl Ketone ND 0.20 0.036 ppbv ND 0.82 ug/m3 1634-04-4 Methyl Tert Butyl Ether ND 0.20 0.019 ppbv ND 0.72 ug/m3 80-62-6 Methylmethacrylate ND 0.20 0.033 ppbv ND 0.82 ug/m3 115-07-1 Propylene ND 0.50 0.016 ppbv ND 0.86 ug/m3 100-42-5 Styrene ND 0.20 0.019 ppbv ND 0.85 ug/m3 71-55-6 1,1,1-Trichloroethane ND 0.20 0.033 ppbv ND 1.1 ug/m3 79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.027 ppbv ND 1.4 ug/m3 79-00-5 1,1,2-Trichloroethane ND 0.20 0.030 ppbv ND 1.1 ug/m3 120-82-1 1,2,4-Trichlorobenzene ND 0.20 0.089 ppbv ND 1.5 ug/m3 95-63-6 1,2,4-Trimethylbenzene ND 0.20 0.033 ppbv ND 0.98 ug/m3 108-67-8 1,3,5-Trimethylbenzene ND 0.20 0.034 ppbv ND 0.98 ug/m3 540-84-1 2,2,4-Trimethylpentane ND 0.20 0.022 ppbv ND 0.93 ug/m3 75-65-0 Tertiary Butyl Alcohol ND 0.20 0.014 ppbv ND 0.61 ug/m3 127-18-4 Tetrachloroethylene ND 0.040 0.031 ppbv ND 0.27 ug/m3 109-99-9 Tetrahydrofuran ND 0.20 0.050 ppbv ND 0.59 ug/m3 108-88-3 Toluene ND 0.20 0.014 ppbv ND 0.75 ug/m3 79-01-6 Trichloroethylene ND 0.040 0.019 ppbv ND 0.21 ug/m3 75-69-4 Trichlorofluoromethane ND 0.20 0.028 ppbv ND 1.1 ug/m3 75-01-4 Vinyl chloride ND 0.20 0.022 ppbv ND 0.51 ug/m3 108-05-4 Vinyl Acetate ND 0.20 0.034 ppbv ND 0.70 ug/m3 m,p-Xylene ND 0.20 0.034 ppbv ND 0.87 ug/m3 95-47-6 o-Xylene ND 0.20 0.017 ppbv ND 0.87 ug/m3 1330-20-7 Xylenes (total)ND 0.20 0.017 ppbv ND 0.87 ug/m3 45 of 51 JC7638355.4.2 Summa Cleaning Certification Page 3 of 3 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V6W320-SCC 6W08436.D 1 10/04/18 GP n/a n/a V6W320 The QC reported here (Summa A1207) applies to the following samples:Method: TO-15 Batch CP10016 cleaned 10/01/18: JC76383-1(A1251) CAS No.Surrogate Recoveries Limits 460-00-4 4-Bromofluorobenzene 98%65-128% 46 of 51 JC7638355.4.2 Instrument Performance Check (BFB)Page 1 of 1 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample:V5W1312-BFB Injection Date:09/17/18 Lab File ID:5W32903.D Injection Time:12:08 Instrument ID:GCMS5W Raw % Relative m/e Ion Abundance Criteria Abundance Abundance Pass/Fail 50 8.0 - 40.0% of mass 95 26784 15.4 Pass 75 30.0 - 66.0% of mass 95 76181 43.7 Pass 95 Base peak, 100% relative abundance 174229 100.0 Pass 96 5.0 - 9.0% of mass 95 11833 6.79 Pass 173 Less than 2.0% of mass 174 0 0.00 (0.00) a Pass 174 50.0 - 120.0% of mass 95 167275 96.0 Pass 175 4.0 - 9.0% of mass 174 12852 7.38 (7.68) a Pass 176 93.0 - 101.0% of mass 174 162133 93.1 (96.9) a Pass 177 5.0 - 9.0% of mass 176 10765 6.18 (6.64) b Pass (a) Value is % of mass 174 (b) Value is % of mass 176 This check applies to the following Samples, MS, MSD, Blanks, and Standards: Lab Lab Date Time Hours Client Sample ID File ID Analyzed Analyzed Lapsed Sample ID V5W1312-IC1312 5W32904.D 09/17/18 12:52 00:44 Initial cal 0.04 V5W1312-IC1312 5W32905.D 09/17/18 13:36 01:28 Initial cal 0.1 V5W1312-IC1312 5W32908.D 09/17/18 15:58 03:50 Initial cal 0.2 V5W1312-IC1312 5W32909.D 09/17/18 16:57 04:49 Initial cal 0.5 V5W1312-IC1312 5W32910.D 09/17/18 17:41 05:33 Initial cal 5 V5W1312-ICC1312 5W32911.D 09/17/18 18:27 06:19 Initial cal 10 V5W1312-IC1312 5W32912.D 09/17/18 19:15 07:07 Initial cal 20 V5W1312-IC1312 5W32913.D 09/17/18 20:05 07:57 Initial cal 40 V5W1312-ICV1312 5W32919.D 09/18/18 11:34 23:26 Initial cal verification 10 47 of 51 JC7638355.5.1 Instrument Performance Check (BFB)Page 1 of 1 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample:V5W1348-BFB Injection Date:10/29/18 Lab File ID:5W33556.D Injection Time:09:02 Instrument ID:GCMS5W Raw % Relative m/e Ion Abundance Criteria Abundance Abundance Pass/Fail 50 8.0 - 40.0% of mass 95 16122 14.4 Pass 75 30.0 - 66.0% of mass 95 48107 43.0 Pass 95 Base peak, 100% relative abundance 111805 100.0 Pass 96 5.0 - 9.0% of mass 95 7168 6.41 Pass 173 Less than 2.0% of mass 174 0 0.00 (0.00) a Pass 174 50.0 - 120.0% of mass 95 121045 108.3 Pass 175 4.0 - 9.0% of mass 174 8987 8.04 (7.42) a Pass 176 93.0 - 101.0% of mass 174 117728 105.3 (97.3) a Pass 177 5.0 - 9.0% of mass 176 7666 6.86 (6.51) b Pass (a) Value is % of mass 174 (b) Value is % of mass 176 This check applies to the following Samples, MS, MSD, Blanks, and Standards: Lab Lab Date Time Hours Client Sample ID File ID Analyzed Analyzed Lapsed Sample ID V5W1348-CC1312 5W33557.D 10/29/18 09:48 00:46 Continuing cal 10 V5W1348-BS 5W33558.D 10/29/18 10:57 01:55 Blank Spike V5W1348-BSD 5W33559.D 10/29/18 11:43 02:41 Blank Spike Duplicate V5W1348-MB 5W33561.D 10/29/18 13:34 04:32 Method Blank ZZZZZZ 5W33562.D 10/29/18 15:30 06:28 (unrelated sample) JC76488-1 5W33563.D 10/29/18 16:58 07:56 (used for QC only; not part of job JC76383) JC76488-1DUP 5W33564.D 10/29/18 17:51 08:49 Duplicate ZZZZZZ 5W33565.D 10/29/18 18:42 09:40 (unrelated sample) JC76383-1 5W33566.D 10/29/18 19:28 10:26 HVS-06-START JC76383-2 5W33567.D 10/29/18 20:13 11:11 HVS-06-END JC76383-3 5W33568.D 10/29/18 20:59 11:57 HVS-01-START JC76383-4 5W33569.D 10/29/18 21:44 12:42 HVS-01-END ZZZZZZ 5W33570.D 10/29/18 22:35 13:33 (unrelated sample) ZZZZZZ 5W33571.D 10/29/18 23:27 14:25 (unrelated sample) ZZZZZZ 5W33575.D 10/30/18 02:38 17:36 (unrelated sample) ZZZZZZ 5W33576.D 10/30/18 03:38 18:36 (unrelated sample) ZZZZZZ 5W33577.D 10/30/18 04:36 19:34 (unrelated sample) ZZZZZZ 5W33578.D 10/30/18 05:37 20:35 (unrelated sample) 48 of 51 JC7638355.5.2 Instrument Performance Check (BFB)Page 1 of 1 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample:V6W202-BFB Injection Date:05/07/18 Lab File ID:6W06052.D Injection Time:14:10 Instrument ID:GCMS6W Raw % Relative m/e Ion Abundance Criteria Abundance Abundance Pass/Fail 50 8.0 - 40.0% of mass 95 34632 14.7 Pass 75 30.0 - 66.0% of mass 95 100149 42.5 Pass 95 Base peak, 100% relative abundance 235691 100.0 Pass 96 5.0 - 9.0% of mass 95 15602 6.62 Pass 173 Less than 2.0% of mass 174 1664 0.71 (0.77) a Pass 174 50.0 - 120.0% of mass 95 215787 91.6 Pass 175 4.0 - 9.0% of mass 174 15801 6.70 (7.32) a Pass 176 93.0 - 101.0% of mass 174 210304 89.2 (97.5) a Pass 177 5.0 - 9.0% of mass 176 13850 5.88 (6.59) b Pass (a) Value is % of mass 174 (b) Value is % of mass 176 This check applies to the following Samples, MS, MSD, Blanks, and Standards: Lab Lab Date Time Hours Client Sample ID File ID Analyzed Analyzed Lapsed Sample ID V6W202-IC202 6W06053.D 05/07/18 14:59 00:49 Initial cal 5 V6W202-ICC202 6W06054.D 05/07/18 15:50 01:40 Initial cal 10 V6W202-IC202 6W06055.D 05/07/18 16:42 02:32 Initial cal 20 V6W202-IC202 6W06057.D 05/07/18 18:29 04:19 Initial cal 40 V6W202-IC202 6W06059.D 05/07/18 20:13 06:03 Initial cal 0.2 V6W202-IC202 6W06061.D 05/07/18 22:01 07:51 Initial cal 0.5 V6W202-IC202 6W06062.D 05/08/18 09:14 19:04 Initial cal 0.1 V6W202-IC202 6W06063.D 05/08/18 10:56 20:46 Initial cal 0.04 V6W202-ICV202 6W06064.D 05/08/18 11:47 21:37 Initial cal verification 10 49 of 51 JC7638355.5.3 Instrument Performance Check (BFB)Page 1 of 1 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Sample:V6W320-BFB Injection Date:10/04/18 Lab File ID:6W08429.D Injection Time:12:09 Instrument ID:GCMS6W Raw % Relative m/e Ion Abundance Criteria Abundance Abundance Pass/Fail 50 8.0 - 40.0% of mass 95 23579 13.5 Pass 75 30.0 - 66.0% of mass 95 71979 41.2 Pass 95 Base peak, 100% relative abundance 174635 100.0 Pass 96 5.0 - 9.0% of mass 95 11698 6.70 Pass 173 Less than 2.0% of mass 174 1173 0.67 (0.71) a Pass 174 50.0 - 120.0% of mass 95 165931 95.0 Pass 175 4.0 - 9.0% of mass 174 12133 6.95 (7.31) a Pass 176 93.0 - 101.0% of mass 174 160640 92.0 (96.8) a Pass 177 5.0 - 9.0% of mass 176 10637 6.09 (6.62) b Pass (a) Value is % of mass 174 (b) Value is % of mass 176 This check applies to the following Samples, MS, MSD, Blanks, and Standards: Lab Lab Date Time Hours Client Sample ID File ID Analyzed Analyzed Lapsed Sample ID V6W320-CC202 6W08430.D 10/04/18 13:01 00:52 Continuing cal 10 V6W320-BS 6W08431.D 10/04/18 13:55 01:46 Blank Spike V6W320-BSD 6W08432.D 10/04/18 14:45 02:36 Blank Spike Duplicate V6W320-MB 6W08434.D 10/04/18 16:32 04:23 Method Blank V6W320-SCC 6W08435.D 10/04/18 17:28 05:19 Summa Cleaning Certification V6W320-SCC 6W08436.D 10/04/18 18:43 06:34 Summa Cleaning Certification 50 of 51 JC7638355.5.4 Surrogate Recovery Summary Page 1 of 1 Job Number:JC76383 Account:GSYNNCC Geosyntec Consultants Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC Method:TO-15 Matrix:AIR Samples and QC shown here apply to the above method Lab Lab Sample ID File ID S1 JC76383-1 5W33566.D 100 JC76383-2 5W33567.D 99 JC76383-3 5W33568.D 99 JC76383-4 5W33569.D 99 JC76488-1DUP 5W33564.D 100 V5W1348-BS 5W33558.D 112 V5W1348-BSD 5W33559.D 108 V5W1348-MB 5W33561.D 90 V6W320-SCC 6W08436.D 98 V6W320-SCC 6W08435.D 99 V6W320-BS 6W08431.D 105 V6W320-BSD 6W08432.D 106 V6W320-MB 6W08434.D 99 Surrogate Recovery Compounds Limits S1 = 4-Bromofluorobenzene 65-128% 51 of 51 JC7638355.6.1 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Sample Summary Geosyntec Consultants Job No:JC76489 Crompton & Knowles, 1602 North Main Street, Lowell, NC Project No: GC6521 Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID JC76489-1 10/16/18 15:00 BP 10/23/18 AIR Soil Vapor Comp.HVS-02-START JC76489-2 10/16/18 16:25 BP 10/23/18 AIR Soil Vapor Comp.HVS-02-END JC76489-3 10/17/18 08:20 BP 10/23/18 AIR Soil Vapor Comp.HVS-03-START JC76489-4 10/17/18 09:45 BP 10/23/18 AIR Soil Vapor Comp.HVS-03-END JC76489-5 10/17/18 11:20 BP 10/23/18 AIR Soil Vapor Comp.HVS-04-START JC76489-6 10/17/18 12:45 BP 10/23/18 AIR Soil Vapor Comp.HVS-04-END JC76489-7 10/17/18 11:50 BP 10/23/18 AIR Soil Vapor Comp.DUP-AIR JC76489-8 10/17/18 13:30 BP 10/23/18 AIR Soil Vapor Comp.HVS-05-START JC76489-9 10/17/18 14:55 BP 10/23/18 AIR Soil Vapor Comp.HVS-05-END Draft: 1 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 1 of 2 Client Sample ID:HVS-02-START Lab Sample ID:JC76489-1 Date Sampled:10/16/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A681 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 6W08891.D 1 10/30/18 22:54 PC n/a n/a V6W341 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 15.7 0.80 0.45 ppbv 37.3 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 0.85 0.80 0.048 ppbv 2.7 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane 0.85 0.80 0.11 ppbv 5.7 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide 2.1 0.80 0.094 ppbv 6.5 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform 14.1 0.80 0.080 ppbv 68.9 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane 0.69 0.80 0.061 ppbv J 1.4 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane ND 0.80 0.088 ppbv ND 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane 0.43 0.80 0.066 ppbv J 2.1 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 2 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 2 of 2 Client Sample ID:HVS-02-START Lab Sample ID:JC76489-1 Date Sampled:10/16/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A681 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 6.0 2.0 0.87 ppbv 11 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene 0.42 0.80 0.060 ppbv J 1.8 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate 1.5 0.80 0.15 ppbv 5.4 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane ND 0.80 0.070 ppbv ND 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 0.65 0.80 0.042 ppbv J 2.3 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol 0.97 0.80 0.26 ppbv 2.4 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride 0.83 0.80 0.058 ppbv 2.9 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone 14.2 0.80 0.17 ppbv 41.9 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene 9.3 2.0 0.064 ppbv 16 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene 0.58 0.80 0.13 ppbv J 2.9 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 0.59 0.80 0.087 ppbv J 2.8 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 1.8 0.16 0.12 ppbv 12 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 1.9 0.80 0.058 ppbv 7.2 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene ND 0.16 0.076 ppbv ND 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene 1.2 0.80 0.14 ppbv 5.2 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene 0.51 0.80 0.068 ppbv J 2.2 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)1.7 0.80 0.068 ppbv 7.4 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 94%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 3 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 1 of 2 Client Sample ID:HVS-02-END Lab Sample ID:JC76489-2 Date Sampled:10/16/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A583 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 6W08892.D 1 10/30/18 23:45 PC n/a n/a V6W341 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 9.4 0.80 0.45 ppbv 22 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 0.44 0.80 0.048 ppbv J 1.4 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane 1.8 0.80 0.11 ppbv 12 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide 1.5 0.80 0.094 ppbv 4.7 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform 16.6 0.80 0.080 ppbv 81.1 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane 0.90 0.80 0.061 ppbv 1.9 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane ND 0.80 0.088 ppbv ND 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane 0.46 0.80 0.066 ppbv J 2.3 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 4 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 2 of 2 Client Sample ID:HVS-02-END Lab Sample ID:JC76489-2 Date Sampled:10/16/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A583 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 6.6 2.0 0.87 ppbv 12 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene ND 0.80 0.060 ppbv ND 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate 13.6 0.80 0.15 ppbv 48.9 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane ND 0.80 0.070 ppbv ND 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 1.1 0.80 0.042 ppbv 3.9 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol 1.5 0.80 0.26 ppbv 3.7 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride 3.0 0.80 0.058 ppbv 10 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone 3.7 0.80 0.17 ppbv 11 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene 4.2 2.0 0.064 ppbv 7.2 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane ND 0.80 0.087 ppbv ND 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 4.4 0.16 0.12 ppbv 30 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 1.0 0.80 0.058 ppbv 3.8 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene ND 0.16 0.076 ppbv ND 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene 0.67 0.80 0.14 ppbv J 2.9 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene ND 0.80 0.068 ppbv ND 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)0.67 0.80 0.068 ppbv J 2.9 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 100%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 5 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 1 of 2 Client Sample ID:HVS-03-START Lab Sample ID:JC76489-3 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A1212 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 6W08893.D 1 10/31/18 00:37 PC n/a n/a V6W341 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 19.5 0.80 0.45 ppbv 46.3 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene 1.1 0.80 0.18 ppbv 2.4 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 4.2 0.80 0.048 ppbv 13 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform 0.42 0.80 0.080 ppbv J 2.1 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane 0.47 0.80 0.061 ppbv J 0.97 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane 0.84 0.80 0.088 ppbv 2.9 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane 0.89 0.80 0.071 ppbv 6.8 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane 0.43 0.80 0.066 ppbv J 2.1 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 6 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 2 of 2 Client Sample ID:HVS-03-START Lab Sample ID:JC76489-3 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A1212 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 11.0 2.0 0.87 ppbv 20.7 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene 1.7 0.80 0.060 ppbv 7.4 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate 5.5 0.80 0.15 ppbv 20 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene 0.81 0.80 0.12 ppbv 4.0 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane 2.0 0.80 0.070 ppbv 8.2 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 6.1 0.80 0.042 ppbv 21 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol 2.6 0.80 0.26 ppbv 6.4 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride ND 0.80 0.058 ppbv ND 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone 7.1 0.80 0.17 ppbv 21 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene 5.6 2.0 0.064 ppbv 9.6 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene 4.5 0.80 0.13 ppbv 22 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene 1.2 0.80 0.13 ppbv 5.9 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 6.9 0.80 0.087 ppbv 32 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 49.1 0.16 0.12 ppbv 333 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 11.0 0.80 0.058 ppbv 41.5 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene ND 0.16 0.076 ppbv ND 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene 6.4 0.80 0.14 ppbv 28 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene 1.8 0.80 0.068 ppbv 7.8 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)8.2 0.80 0.068 ppbv 36 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 101%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 7 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 1 of 2 Client Sample ID:HVS-03-END Lab Sample ID:JC76489-4 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: M199 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 6W08894.D 1 10/31/18 01:28 PC n/a n/a V6W341 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 6.0 0.80 0.45 ppbv 14 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene 0.42 0.80 0.18 ppbv J 0.93 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 2.1 0.80 0.048 ppbv 6.7 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform 0.43 0.80 0.080 ppbv J 2.1 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane ND 0.80 0.061 ppbv ND 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane 0.42 0.80 0.088 ppbv J 1.4 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane 0.43 0.80 0.066 ppbv J 2.1 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 8 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 2 of 2 Client Sample ID:HVS-03-END Lab Sample ID:JC76489-4 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: M199 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 8.2 2.0 0.87 ppbv 15 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene 0.70 0.80 0.060 ppbv J 3.0 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate 1.4 0.80 0.15 ppbv 5.0 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane 1.0 0.80 0.070 ppbv 4.1 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 3.3 0.80 0.042 ppbv 12 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol ND 0.80 0.26 ppbv ND 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride ND 0.80 0.058 ppbv ND 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone 0.56 0.80 0.17 ppbv J 1.7 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene 2.4 2.0 0.064 ppbv 4.1 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane 0.31 0.80 0.13 ppbv J 1.7 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene 0.77 0.80 0.13 ppbv J 3.8 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 3.4 0.80 0.087 ppbv 16 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 101 0.16 0.12 ppbv 685 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 5.5 0.80 0.058 ppbv 21 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene 0.29 0.16 0.076 ppbv 1.6 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane 0.43 0.80 0.11 ppbv J 2.4 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene 2.3 0.80 0.14 ppbv 10 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene 0.86 0.80 0.068 ppbv 3.7 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)3.2 0.80 0.068 ppbv 14 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 103%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 9 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 1 of 2 Client Sample ID:HVS-04-START Lab Sample ID:JC76489-5 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A414 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 3W67228.D 1 10/30/18 19:09 TCH n/a n/a V3W2600 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 10.2 0.80 0.45 ppbv 24.2 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 2.4 0.80 0.048 ppbv 7.7 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform 0.62 0.80 0.080 ppbv J 3.0 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane ND 0.80 0.061 ppbv ND 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane 0.74 0.80 0.088 ppbv J 2.5 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane 0.57 0.80 0.066 ppbv J 2.8 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 10 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 2 of 2 Client Sample ID:HVS-04-START Lab Sample ID:JC76489-5 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A414 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 11.0 2.0 0.87 ppbv 20.7 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene 0.76 0.80 0.060 ppbv J 3.3 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate 1.1 0.80 0.15 ppbv 4.0 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane 1.5 0.80 0.070 ppbv 6.1 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 5.9 0.80 0.042 ppbv 21 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol ND 0.80 0.26 ppbv ND 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride 3.4 0.80 0.058 ppbv 12 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone 1.7 0.80 0.17 ppbv 5.0 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene 1.8 2.0 0.064 ppbv J 3.1 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene 0.64 0.80 0.13 ppbv J 3.1 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 4.1 0.80 0.087 ppbv 19 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 30.0 0.16 0.12 ppbv 203 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 6.7 0.80 0.058 ppbv 25 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene 0.73 0.16 0.076 ppbv 3.9 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene 2.2 0.80 0.14 ppbv 9.6 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene 0.74 0.80 0.068 ppbv J 3.2 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)2.9 0.80 0.068 ppbv 13 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 96%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 11 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 1 of 2 Client Sample ID:HVS-04-END Lab Sample ID:JC76489-6 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A508 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 3W67230.D 1 10/30/18 20:31 TCH n/a n/a V3W2600 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 6.2 0.80 0.45 ppbv 15 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 1.3 0.80 0.048 ppbv 4.2 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform 1.5 0.80 0.080 ppbv 7.3 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane ND 0.80 0.061 ppbv ND 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane 0.51 0.80 0.088 ppbv J 1.8 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane 0.57 0.80 0.066 ppbv J 2.8 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 12 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 2 of 2 Client Sample ID:HVS-04-END Lab Sample ID:JC76489-6 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A508 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 6.9 2.0 0.87 ppbv 13 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene 0.40 0.80 0.060 ppbv J 1.7 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate 1.3 0.80 0.15 ppbv 4.7 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane 1.2 0.80 0.070 ppbv 4.9 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 3.3 0.80 0.042 ppbv 12 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol 1.1 0.80 0.26 ppbv 2.7 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride 1.4 0.80 0.058 ppbv 4.9 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone 1.2 0.80 0.17 ppbv 3.5 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene 0.68 2.0 0.064 ppbv J 1.2 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 3.3 0.80 0.087 ppbv 15 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 47.2 0.16 0.12 ppbv 320 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 4.1 0.80 0.058 ppbv 15 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene 1.6 0.16 0.076 ppbv 8.6 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene 1.1 0.80 0.14 ppbv 4.8 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene ND 0.80 0.068 ppbv ND 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)1.1 0.80 0.068 ppbv 4.8 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 92%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 13 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 1 of 2 Client Sample ID:DUP-AIR Lab Sample ID:JC76489-7 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A1226 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 3W67231.D 1 10/30/18 21:11 TCH n/a n/a V3W2600 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 5.0 0.80 0.45 ppbv 12 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 2.1 0.80 0.048 ppbv 6.7 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform 0.71 0.80 0.080 ppbv J 3.5 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane ND 0.80 0.061 ppbv ND 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane 0.68 0.80 0.088 ppbv J 2.3 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane 0.59 0.80 0.066 ppbv J 2.9 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 14 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 2 of 2 Client Sample ID:DUP-AIR Lab Sample ID:JC76489-7 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A1226 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 11.9 2.0 0.87 ppbv 22.4 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene 0.80 0.80 0.060 ppbv 3.5 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate 1.3 0.80 0.15 ppbv 4.7 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane 1.8 0.80 0.070 ppbv 7.4 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 4.1 0.80 0.042 ppbv 14 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol 1.4 0.80 0.26 ppbv 3.4 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride 1.1 0.80 0.058 ppbv 3.8 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone 1.3 0.80 0.17 ppbv 3.8 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate 2.4 0.80 0.13 ppbv 9.8 3.3 0.53 ug/m3 115-07-1 42 Propylene 2.3 2.0 0.064 ppbv 4.0 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene 0.72 0.80 0.13 ppbv J 3.5 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 4.7 0.80 0.087 ppbv 22 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 35.2 0.16 0.12 ppbv 239 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 7.7 0.80 0.058 ppbv 29 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene 0.91 0.16 0.076 ppbv 4.9 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene 2.7 0.80 0.14 ppbv 12 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene 1.0 0.80 0.068 ppbv 4.3 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)3.7 0.80 0.068 ppbv 16 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 96%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 15 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 1 of 2 Client Sample ID:HVS-05-START Lab Sample ID:JC76489-8 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A785 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 3W67232.D 1 10/30/18 21:54 TCH n/a n/a V3W2600 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 5.8 0.80 0.45 ppbv 14 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 1.2 0.80 0.048 ppbv 3.8 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform ND 0.80 0.080 ppbv ND 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane 0.42 0.80 0.061 ppbv J 0.87 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane ND 0.80 0.088 ppbv ND 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane 0.59 0.80 0.066 ppbv J 2.9 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 16 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 2 of 2 Client Sample ID:HVS-05-START Lab Sample ID:JC76489-8 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A785 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 9.4 2.0 0.87 ppbv 18 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene 0.41 0.80 0.060 ppbv J 1.8 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate 0.71 0.80 0.15 ppbv J 2.6 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane 0.74 0.80 0.070 ppbv J 3.0 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 2.0 0.80 0.042 ppbv 7.0 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol 0.86 0.80 0.26 ppbv 2.1 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride 1.7 0.80 0.058 ppbv 5.9 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone 0.84 0.80 0.17 ppbv 2.5 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene 0.97 2.0 0.064 ppbv J 1.7 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 1.8 0.80 0.087 ppbv 8.4 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 28.8 0.16 0.12 ppbv 195 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 3.5 0.80 0.058 ppbv 13 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene ND 0.16 0.076 ppbv ND 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene 1.4 0.80 0.14 ppbv 6.1 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene 0.49 0.80 0.068 ppbv J 2.1 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)1.9 0.80 0.068 ppbv 8.3 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 90%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 17 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 1 of 2 Client Sample ID:HVS-05-END Lab Sample ID:JC76489-9 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A405 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 3W67233.D 1 10/30/18 22:36 TCH n/a n/a V3W2600 Run #2 Initial Volume Run #1 100 ml Run #2 VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 67-64-1 58.08 Acetone 5.8 0.80 0.45 ppbv 14 1.9 1.1 ug/m3 106-99-0 54.09 1,3-Butadiene ND 0.80 0.18 ppbv ND 1.8 0.40 ug/m3 71-43-2 78.11 Benzene 1.2 0.80 0.048 ppbv 3.8 2.6 0.15 ug/m3 75-27-4 163.8 Bromodichloromethane ND 0.80 0.11 ppbv ND 5.4 0.74 ug/m3 75-25-2 252.8 Bromoform ND 0.80 0.15 ppbv ND 8.3 1.6 ug/m3 74-83-9 94.94 Bromomethane ND 0.80 0.088 ppbv ND 3.1 0.34 ug/m3 593-60-2 106.9 Bromoethene ND 0.80 0.088 ppbv ND 3.5 0.38 ug/m3 100-44-7 126 Benzyl Chloride ND 0.80 0.23 ppbv ND 4.1 1.2 ug/m3 75-15-0 76.14 Carbon disulfide ND 0.80 0.094 ppbv ND 2.5 0.29 ug/m3 108-90-7 112.6 Chlorobenzene ND 0.80 0.10 ppbv ND 3.7 0.46 ug/m3 75-00-3 64.52 Chloroethane ND 0.80 0.19 ppbv ND 2.1 0.50 ug/m3 67-66-3 119.4 Chloroform ND 0.80 0.080 ppbv ND 3.9 0.39 ug/m3 74-87-3 50.49 Chloromethane ND 0.80 0.061 ppbv ND 1.7 0.13 ug/m3 107-05-1 76.53 3-Chloropropene ND 0.80 0.16 ppbv ND 2.5 0.50 ug/m3 95-49-8 126.6 2-Chlorotoluene ND 0.80 0.10 ppbv ND 4.1 0.52 ug/m3 56-23-5 153.8 Carbon tetrachloride ND 0.80 0.094 ppbv ND 5.0 0.59 ug/m3 110-82-7 84.16 Cyclohexane ND 0.80 0.088 ppbv ND 2.8 0.30 ug/m3 75-34-3 98.96 1,1-Dichloroethane ND 0.80 0.046 ppbv ND 3.2 0.19 ug/m3 75-35-4 96.94 1,1-Dichloroethylene ND 0.80 0.067 ppbv ND 3.2 0.27 ug/m3 106-93-4 187.9 1,2-Dibromoethane ND 0.80 0.071 ppbv ND 6.1 0.55 ug/m3 107-06-2 98.96 1,2-Dichloroethane ND 0.80 0.083 ppbv ND 3.2 0.34 ug/m3 78-87-5 113 1,2-Dichloropropane ND 0.80 0.077 ppbv ND 3.7 0.36 ug/m3 123-91-1 88.12 1,4-Dioxane ND 0.80 0.21 ppbv ND 2.9 0.76 ug/m3 75-71-8 120.9 Dichlorodifluoromethane 0.59 0.80 0.066 ppbv J 2.9 4.0 0.33 ug/m3 124-48-1 208.3 Dibromochloromethane ND 0.80 0.13 ppbv ND 6.8 1.1 ug/m3 156-60-5 96.94 trans-1,2-Dichloroethylene ND 0.80 0.029 ppbv ND 3.2 0.11 ug/m3 156-59-2 96.94 cis-1,2-Dichloroethylene ND 0.80 0.047 ppbv ND 3.2 0.19 ug/m3 10061-01-5 111 cis-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 541-73-1 147 m-Dichlorobenzene ND 0.80 0.076 ppbv ND 4.8 0.46 ug/m3 95-50-1 147 o-Dichlorobenzene ND 0.80 0.087 ppbv ND 4.8 0.52 ug/m3 106-46-7 147 p-Dichlorobenzene ND 0.80 0.070 ppbv ND 4.8 0.42 ug/m3 10061-02-6 111 trans-1,3-Dichloropropene ND 0.80 0.078 ppbv ND 3.6 0.35 ug/m3 ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 18 of 22 SGS LabLink@17:32 05-Nov-2018 Preliminary Data Report of Analysis Page 2 of 2 Client Sample ID:HVS-05-END Lab Sample ID:JC76489-9 Date Sampled:10/17/18 Matrix:AIR - Soil Vapor Comp. Summa ID: A405 Date Received:10/23/18 Method:TO-15 Percent Solids:n/a Project:Crompton & Knowles, 1602 North Main Street, Lowell, NC VOA TO15 List CAS No.MW Compound Result RL MDL Units Q Result RL MDL Units 64-17-5 46.07 Ethanol 5.9 2.0 0.87 ppbv 11 3.8 1.6 ug/m3 100-41-4 106.2 Ethylbenzene ND 0.80 0.060 ppbv ND 3.5 0.26 ug/m3 141-78-6 88 Ethyl Acetate 1.2 0.80 0.15 ppbv 4.3 2.9 0.54 ug/m3 622-96-8 120.2 4-Ethyltoluene ND 0.80 0.12 ppbv ND 3.9 0.59 ug/m3 76-13-1 187.4 Freon 113 ND 0.80 0.068 ppbv ND 6.1 0.52 ug/m3 76-14-2 170.9 Freon 114 ND 0.80 0.076 ppbv ND 5.6 0.53 ug/m3 142-82-5 100.2 Heptane 1.0 0.80 0.070 ppbv 4.1 3.3 0.29 ug/m3 87-68-3 260.8 Hexachlorobutadiene ND 0.80 0.18 ppbv ND 8.5 1.9 ug/m3 110-54-3 86.17 Hexane 3.5 0.80 0.042 ppbv 12 2.8 0.15 ug/m3 591-78-6 100 2-Hexanone ND 0.80 0.15 ppbv ND 3.3 0.61 ug/m3 67-63-0 60.1 Isopropyl Alcohol 1.1 0.80 0.26 ppbv 2.7 2.0 0.64 ug/m3 75-09-2 84.94 Methylene chloride 3.6 0.80 0.058 ppbv 13 2.8 0.20 ug/m3 78-93-3 72.11 Methyl ethyl ketone 0.86 0.80 0.17 ppbv 2.5 2.4 0.50 ug/m3 108-10-1 100.2 Methyl Isobutyl Ketone ND 0.80 0.14 ppbv ND 3.3 0.57 ug/m3 1634-04-4 88.15 Methyl Tert Butyl Ether ND 0.80 0.077 ppbv ND 2.9 0.28 ug/m3 80-62-6 100.12 Methylmethacrylate ND 0.80 0.13 ppbv ND 3.3 0.53 ug/m3 115-07-1 42 Propylene ND 2.0 0.064 ppbv ND 3.4 0.11 ug/m3 100-42-5 104.1 Styrene ND 0.80 0.076 ppbv ND 3.4 0.32 ug/m3 71-55-6 133.4 1,1,1-Trichloroethane ND 0.80 0.13 ppbv ND 4.4 0.71 ug/m3 79-34-5 167.9 1,1,2,2-Tetrachloroethane ND 0.80 0.11 ppbv ND 5.5 0.76 ug/m3 79-00-5 133.4 1,1,2-Trichloroethane ND 0.80 0.12 ppbv ND 4.4 0.65 ug/m3 120-82-1 181.5 1,2,4-Trichlorobenzene ND 0.80 0.35 ppbv ND 5.9 2.6 ug/m3 95-63-6 120.2 1,2,4-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 108-67-8 120.2 1,3,5-Trimethylbenzene ND 0.80 0.13 ppbv ND 3.9 0.64 ug/m3 540-84-1 114.2 2,2,4-Trimethylpentane 2.8 0.80 0.087 ppbv 13 3.7 0.41 ug/m3 75-65-0 74.12 Tertiary Butyl Alcohol ND 0.80 0.055 ppbv ND 2.4 0.17 ug/m3 127-18-4 165.8 Tetrachloroethylene 37.4 0.16 0.12 ppbv 254 1.1 0.81 ug/m3 109-99-9 72.11 Tetrahydrofuran ND 0.80 0.20 ppbv ND 2.4 0.59 ug/m3 108-88-3 92.14 Toluene 3.6 0.80 0.058 ppbv 14 3.0 0.22 ug/m3 79-01-6 131.4 Trichloroethylene 0.45 0.16 0.076 ppbv 2.4 0.86 0.41 ug/m3 75-69-4 137.4 Trichlorofluoromethane ND 0.80 0.11 ppbv ND 4.5 0.62 ug/m3 75-01-4 62.5 Vinyl chloride ND 0.80 0.089 ppbv ND 2.0 0.23 ug/m3 108-05-4 86 Vinyl Acetate ND 0.80 0.14 ppbv ND 2.8 0.49 ug/m3 106.2 m,p-Xylene ND 0.80 0.14 ppbv ND 3.5 0.61 ug/m3 95-47-6 106.2 o-Xylene ND 0.80 0.068 ppbv ND 3.5 0.30 ug/m3 1330-20-7 106.2 Xylenes (total)ND 0.80 0.068 ppbv ND 3.5 0.30 ug/m3 CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 4-Bromofluorobenzene 92%65-128% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound Draft: 19 of 22 sGS r--d-AIR CHAIN OF CUSTODY FED-EX Tracking# SGS North America Inc. -Dayton 2235 Route 130, Dayton, NJ 08810 SGS Quote# Job R! TEL 732-329-0200 FAX 732-329-3499 '"1( 7 6., Ll. \)" Q .. www.sgs.com/ehsusa J <. __ I 0 ( r· ;:L;\,:1\ /): l T!litr"i"'fT! ') ... , ::<.i)Jitfl'l~@d TU Requested Analysis Company Name ~eos~ttc... Project Name: C.C'btt\~Y'\ g ~'N:)~\--E.S pemperature(Fahr•nft!At Address 1'600 ~Q~ f(\\~+~k <i;-\e,.. ~0(.::) Street \'«\c-..~1\~ Stop Minimum: City ~CAr'\.<!:1\\e.. st;:;c_ ~"3 City LO\.\.:>e...\ \ State NL Atmoshpheric Pressure (inches Q!Hg) Project Contact E-mail. 'S'Q.'W\ .. O.S c::e.:. W'\.(). . ~. JProject # Arceec '~~'~ ~~u --u~cos~~ m ~c.. loS"2..\ Start: Maximum: Phone # ...., 1 Fax # _ U 'l 0'1. -'2-'2..-=J. -DS4 0 I Client Purchase Order# Stop: Minimum: Other weather comment: \\ __ _ Sampling Equipment Info Start Sampling Information Stop Sampling Information ~ Lab Sample # Field ID I Point of Collection ( '-'"~-02-~~ 2 ~\}<;.-02-... ~ ~ HV~-cg--~ 4 \-\'JS-o3 ... e~c\ ( 1-\\JS-c '-\-S\-o.r\ b \-\\IS-o~-e"d. 7 t)U?-~\r ~ ~ .. os-s~ ~ \-1-'1$' C:b __: ~~ -- Turnaround Time ( BUsmess days ~Standard -15 Days 10 Day 5 Day 3 Day 2 Day 1 Day Other lndoor(l) Flow Soil Vap (SV) Canister Canister Size Controller Ambient (A) Serial# 6L or 1L Serial# 'S'\1 ''-''1 ' ~oSC. 'i,V 131:2. I GSIWb S\J ,, $So \ OS1'C> <ov 1~1~ \ OS11f, c;v 1\'1 ''-' ' ti\L\\"'3 ~" nt>c..t ' o"i&~ c;.v \"\(." \ o\bOb CS\1 1'1~3 ' GSft\~ ~\/ \\"i\ ' 0'205'9 Approved By: ---------- Date:---------- Sample Custody must be documented Time Canister Interior (24hr Pressure Temp Date clock) ("HQ) (F) lOft~h" ILC~c;' 1..~ \t>f,,t,t. ''l..O ~~ '0A1I1'6 B\'5 ~9 I0/\11\~ '\LfD ge> ~C>Inlr?J \\',\~ 1...'\•S. '0 111/lt. r2.'HO ~0 l(!)/\1ltfl 1\ ·, "\S -2£ ~61t1/l~ a"l~ -z..C\.<i lOlfJftl ltf~g) '2.S. ~ Data Deliverable Information All NJDEP T0-15 is mandatory Full T1 CommA CommB Reduced T2 FuiiT1 Sampler I nit 8" 'b'P Sf> SP e,P lW ~p &~ f,P_ Interior' I~ Temp Sampler \ (F) lnit Time Canister (24hr Pressure Date clock) ("Hg) 'o/u,1,, \SOC> ~ .. , IX \0" "''& ''1S ~ e,p IX l-O/hhte> ~'"l.b 5 &f I~ ,~lt?ltt& ~4S s SPIX :· toJn/(6 \\1..0 s ~~ IX ttfnhto l'l..'1~ s &fIX lb/n lr'O 1\CiO ~ ~~~ •oA,/ttr> \ "330 s &f> IX 1biJJJI9 IL\S~ 5 ~~~ ~ comments 1 Remarks ~ INITIAl. AIESSMENT ~ f2 (0 ~elf!~~ ..L...-.L.L.L..L.LL...---I..L.--l_;____.&....&..-.......u.........:-...........:::;.. ___ ......a.;;;_--I.IL.-----Io.:::..&.lllz..;;__ ___ --L...D.:...._~oj'~ ·~ j;eceived By: F eoY ReiTnq~~ed by: ~ -J ft'1J·f 3 Relinquished by: 5 D;t;~t~~~ --~'{~;:elved~ Date Tim\: Received By: -"" 5 4 Date Time: Received By: ~ellnqulshedtJ "'" Custody Seal # ~ Form:SM088-03D (revised 2-12-18) http://www.sgs.com/en/terms-and-conditions JC76489: Chain of Custody Page 1 of 3 Draft: 20 of 22 Job Number:JC76489 Client:GEOSYNTEC CONSULTANTS Date / Time Received:10/23/2018 10:40:00 AM Delivery Method:FedEx Project:CROMPTON & KNOWLES, 1602 NORTH MAIN 4. No. Coolers:N/A Airbill #'s: Cooler Security 1. Custody Seals Present: Y or N 2. Custody Seals Intact: 3. COC Present: 4. Smpl Dates/Time OK 2. Cooler temp verification: Cooler Temperature Y or N 1. Temp criteria achieved: 3. Cooler media: N/A N/A Quality Control Preservation Y or N N/A 1. Trip Blank present / cooler: 2. Trip Blank listed on COC: 3. Samples preserved properly: 4. VOCs headspace free: Sample Integrity - Documentation Y or N 1. Sample labels present on bottles: 2. Container labeling complete: 3. Sample container label / COC agree: Sample Integrity - Condition Y or N 1. Sample recvd within HT: 3. Condition of sample: 2. All containers accounted for: Sample Integrity - Instructions 1. Analysis requested is clear: 2. Bottles received for unspecified tests 3. Sufficient volume recvd for analysis: 4. Compositing instructions clear: 5. Filtering instructions clear: Intact Y or N Comments Did not receive any of the FC's listed on COC. Y or N N/A Cooler Temps (Raw Measured) °C: Cooler Temps (Corrected) °C: SM089-02 Rev. Date 12/1/16 SGS Sample Receipt Summary Test Strip Lot #s:pH 1-12:216017 pH 12+:208717 Other: (Specify) JC76489: Chain of Custody Page 2 of 3 Draft: 21 of 22 Flow controllers were received and logged in as unused on JC76383. Tammy Esposito McCloskey 10/24/18Responded to by:Response Date: JC76489: Chain of Custody Page 3 of 3 Draft: 22 of 22