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Home My WebLink About20094_Belmont Dyers_Additional_Assessment_20170721 i S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc Brownfields Additional Assessment Report Former Belmont Dyers 18 Linestowe Drive Belmont, North Carolina H&H Job RPH-001 Table of Contents Section Page No. 1.0 Introduction ............................................................................................................................ 1 2.0 Background Information....................................................................................................... 2 3.0 Receptor Survey ..................................................................................................................... 5 3.1 Land Use and Zoning ........................................................................................................... 5 3.2 Water Supply ........................................................................................................................ 6 3.3 Utilities ................................................................................................................................. 7 3.4 Surface Water ....................................................................................................................... 8 4.0 Additional Assessment Activities .......................................................................................... 9 4.1 Soil Gas Assessment ............................................................................................................. 9 4.2 Quality Assurance/Quality Control .................................................................................... 10 5.0 Additional Assessment Results ........................................................................................... 11 5.1 Soil Gas Results .................................................................................................................. 11 5.2 Soil Gas Sample Risk Calculations .................................................................................... 11 6.0 Summary and Conclusions.................................................................................................. 13 ii S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc Tables Table 1 Summary of Soil Gas Analytical Results Table 2 Summary of DEQ Risk Assessment Calculator Output Figures Figure 1 Site Location Map Figure 2 Receptor Survey Map Figure 3 Site Plan with Soil Gas Samples Location Map List of Appendices Appendix A Brownfields Receptor Survey Form Appendix B Photographic Log Appendix C Laboratory Analytical Report Appendix D DEQ Risk Calculators 1 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc Brownfields Additional Assessment Report Former Belmont Dyers 18 Linestowe Drive Belmont, North Carolina H&H Job RPH-001 1.0 Introduction Hart & Hickman, PC (H&H) has prepared this Brownfields Additional Assessment Report for the Former Belmont Dyers property located at 18 Linestowe Drive in Belmont, Gaston County, North Carolina (Site). A Site location map is included as Figure 1. The Site is in the North Carolina Department of Environmental Quality (DEQ) Brownfields Program Redevelopment Now option (Brownfields Project #20094-16-036). This assessment was performed in accordance with the approved Brownfields Additional Assessment Work Plan (Work Plan) dated June 14, 2017. The subject Site is comprised of two parcels totaling approximately 11.32 acres situated on the western bank of the Catawba River. The Site contains a vacant office building which is approximately 2,000 square feet and two asphalt paved parking areas. The remainder of the Site is vacant vegetated land. The Site is planned to be redeveloped with 70 townhouse units and 102 multi-family apartment units, a leasing office, limited urban greenspace, asphalt-paved parking, and landscaped areas. The Brownfields assessment activities were conducted to evaluate potential risks associated with future Site development. The activities included collection of soil vapor samples to evaluate potential vapor intrusion concerns for future Site buildings and completion of a receptor survey to identify potential sensitive receptors in the vicinity of the Site. 2 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc 2.0 Background Information The Site was developed with a textile mill prior to 1929. At that time, the Site contained a main production building, a boiler building, an attached warehouse, caustic and sulphuric acid tanks, gasoline underground storage tanks (USTs), a detached warehouse, and the current office building. Two railroad spurs serviced the Site’s operations until the mid-1960s. An attached dye house addition was completed by 1965. Former textile operations at the Site consisted of yarn mercerizing, bleaching, and dyeing. The Site was occupied by the Belmont Processing Company until the mid-1940s, when Aberfoyle Manufacturing Company took over operations at the Site. The Site was operated by Belmont Dyers Company from the mid-1970s until 2003. During this time period, Michelle Textiles also operated in a portion of the building. The former mill buildings were razed beginning in mid-2007, and the Site has remained vacant since that time. Soil and groundwater assessment have been conducted at the Site from 1991 to the present. Assessment and remediation are currently being conducted by the Remediating Party Meridian Specialty Yarn Group, Inc. (Meridian) pursuant to a voluntary Administrative Agreement (AA) with the DEQ Inactive Hazardous Sites Branch (IHSB) Registered Environmental Consultant (REC) program. Currently, a Remedial Investigation (RI) is being performed to define the extent of compounds in environmental media. Results of groundwater assessment indicate that groundwater impacts (primarily tetrachloroethylene or PCE) are present in the central, southern, and eastern portions of the Site at concentrations exceeding the 15A North Carolina Administrative Code 02L .0202 Groundwater Quality Standards (2L Standards). Analytical results of the most recent groundwater sampling event conducted in March 2016 indicated concentrations of PCE, 1,2,4- trichlorobenzene, and 1,4-dichlorobenzene exceeding DEQ Division of Waste Management (DWM) Residential and Non-Residential Vapor Intrusion Groundwater Screening Levels (GWSLs) in the southern and eastern portions of the Site. 3 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc Low levels of “total pesticides/polychlorinated biphenyls (PCBs)” were detected in shallow soil across the Site during the 1991 assessment activities. Additionally, soil analytical results indicated total petroleum hydrocarbons – diesel range organics (TPH-DRO) were detected in 11 soil borings advanced in the vicinity of former aboveground storage tanks (ASTs) at concentrations ranging from 10.9 milligrams per kilogram (mg/kg) to 9,970 mg/kg during the 1991 assessment activities. Only four of the 11 soil samples contained TPH-DRO above the current DEQ Action Level of 100 mg/kg. H&H conducted limited soil assessment activities at the Site in November 2016. The purpose of the soil sampling activities was to evaluate if significant soil impacts may be encountered as part of future redevelopment activities focusing in areas where soil is expected to be cut as part of future grading activities and to evaluate soil which may be exposed at the surface as a result of overlying soil removal. The results of our assessment indicated several polycyclic aromatic hydrocarbons (PAHs) were detected at concentrations exceeding DEQ IHSB Residential Preliminary Soil Remediation Goals (PSRGs) in a soil boring advanced in the north-central portion of the Site. Analytical results indicate volatile organic compounds (VOCs) were not detected in soil at concentrations exceeding PSRGs. Results of the metals analysis indicate that arsenic and manganese were detected across the Site at concentrations above the Residential PSRGs. However, the arsenic and manganese concentrations in the soil samples are consistent with Site-specific and/or published regional background levels for North Carolina soil. As such, the arsenic and manganese detections are likely naturally occurring and not the result of historical Site activities. Additionally, analytical results indicate hexavalent chromium was not detected in any soil sample at concentrations exceeding laboratory reporting limits. Following a January 18, 2017 Site visit and the February 28, 2017 kick-off/data gap meeting, the Brownfields Program requested additional soil sampling to address the reported previous total pesticides/PCB detections in soil at the Site and to determine if the pesticides/PCBs are compounds of potential concern at the Site. Additionally, DEQ subsequently requested soil gas sampling to address potential vapor intrusion concerns associated with future Site development in the southern and southeastern portions of the Site where groundwater impacts are present. 4 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc H&H conducted Brownfields assessment activities at the Site in May 2017. The Brownfields assessment activities were conducted to evaluate the risk associated with future Site development including the potential for vapor intrusion. The Brownfields assessment activities included the collection of nine soil samples and five soil gas samples for laboratory analysis. The analytical results of the soil samples indicate no semi-volatile organic compounds (SVOCs), PCBs, or pesticides were detected above Residential PSRGs. One metal, arsenic, was detected at a concentration above the Residential PSRG, but within the published range of regional background levels for North Carolina soils. The analytical results of the soil gas samples (HHSG-1 through HHSG-5) indicate the presence of two compounds at concentrations exceeding DEQ Residential Soil Gas Screening Levels (SGSLs). PCE was detected at concentrations above the Residential SGSL in the southeastern (HHSG-2) and southern (HHSG-4 and HHSG-5) portions of the Site. Additionally, 1,2,4- trimethylbenzene was detected in sample HHSG-5 located in the far southern portion of the Site at a concentration above the Residential SGSL. No other compounds were detected at concentrations above the Residential SGSLs. To further evaluate the detected compounds, H&H input the concentrations of the compounds in each sample into the DEQ Risk Calculator (August 2016 Version) to calculate cumulative potential carcinogenic and non-carcinogenic risks for the five soil gas samples. The results of the cumulative risk calculations indicate that all of the calculated lifetime incremental cancer risks (LICRs) were within the acceptable risk range of 1 x 10-4 to 1 x 10-6. The calculated non- carcinogenic hazard indexes (HIs) were below the acceptable threshold of 1 except for soil gas samples HHSG-4 and HHSG-5, collected from the far southern portion of the Site. DEQ subsequently requested additional soil gas samples be collected to further define the potential risk associated with vapor intrusion into future Site buildings. As discussed with DEQ, other potential data gaps will be addressed by conducting post- construction soil sampling and monitoring for potential USTs as part of construction activities. 5 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc 3.0 Receptor Survey On July 10, 2017, H&H performed a receptor survey in accordance with Brownfields Program guidance. During the receptor survey, H&H completed the following activities: • Determined land use and zoning for the Site and surrounding properties and identified schools/daycare centers, residences, and structures with basements within a 1,000-ft radius of the subject Site. • Identified public water supply wells and surface water intakes within a 1-mile radius of the Site and private water supply and irrigation wells on-site and within a 1,500-ft radius. • Identified utilities within a 100-ft radius of the subject Site and septic systems within a 500-ft radius of the subject Site. • Determined the presence of surface water bodies, surface water intakes, and wetlands within a 1,500 ft radius of the subject Site. A summary of information obtained during the survey is provided below. The Brownfields Receptor Survey Form is included in Appendix A and a photographic log is included in Appendix B. A Receptor Survey Map is provided as Figure 2. 3.1 Land Use and Zoning The subject Site is comprised of two parcels totaling approximately 11.32 acres situated on the western bank of the Catawba River. The Site contains an abandoned/unoccupied office building which is approximately 2,000 square feet and two asphalt paved parking areas. The remainder of the Site is vacant vegetated land. Surrounding properties are currently used for single and multi- family residential purposes. The subject Site is zoned business campus development (BC-D). According to our review of 6 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc Gaston County tax records, surrounding properties are zoned general residential (G-R) or infill residential (INF-R). Surrounding zoning is indicated in Figure 2. No schools, daycares, or structures with basements were identified within 1,000 ft of the Site. 3.2 Water Supply Site No water supply wells or surface water intakes were identified at the Site. Off-Site H&H conducted a water supply well survey for public water supply wells located within a 1-mile radius of the site and private water supply and irrigation wells within a 1,500 ft radius of the Site. The water supply well survey was conducted via an intensive vehicular and pedestrian survey and by reviewing the DEQ Source Water Assessment Program’s (SWAP) online geographic information system map. The results of the well survey indicated no private water supply wells or irrigation wells were identified within the 1,500 ft search radii. H&H contacted City of Belmont Utilities which indicated that municipal water is available to the Site and the area within a 0.5-mile radius of the Site. In addition, H&H observed evidence of municipal water availability (i.e., water meters and fire hydrants) in the survey area. The City of Belmont obtains its drinking water from the Catawba River. The City of Belmont water treatment plant intake is located approximately 150 ft north and upstream of the Site (DEQ Water System No. 01-36-015). The associated pump house is located adjacent to the north of the Site. The City of Belmont water treatment plant is located approximately 1,000 ft west- northwest of the Site. 7 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc Historically, the eastern Site parcel has been vacant and/or used for residential purposes and historical Site operations were primarily focused in the central, southern, and southeastern portions of the property (where current groundwater impacts are present). The results of previous groundwater assessment have indicated that impacted groundwater is migrating towards the south and southeast, and away from the water treatment plant intake. According to the US Geological Survey (USGS) the mean flow rate of the portion of the Catawba River adjacent to the Site is 3,030 cubic feet per second (ft3/sec). Although a water treatment plant intake was identified approximately 150 ft north of the Site, based upon the upstream location of the surface water intake, flow velocity, and that groundwater at the Site is not migrating towards the surface water intake, the potential for impact from the Site is low. 3.3 Utilities The Site and surrounding area is supplied with the following utilities located within a 100 ft radius of the subject Site: • municipal water – City of Belmont Utilities • sanitary sewage – City of Belmont Utilities • electricity - Duke Energy • natural gas – Piedmont Natural Gas Municipal water lines were identified surrounding the Site along Linestowe Drive. Municipal sewer main lines were identified north, south, and west of the Site. Additionally, two municipal sewer main lines traverse the western and eastern portions of the Site. Private underground water fire lines associated with the former fire suppression system surround the location of the former mill building. H&H did not observe evidence of a septic system associated with the subject Site or within a 500 ft radius of the subject Site. Electric lines and communications lines are primarily overhead at locations on the subject Site and in the vicinity of the subject Site. Natural gas lines also run underground along the Linestowe Drive utilities easement as evidenced by the valves observed at the surface. H&H 8 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc requested maps depicting natural gas utilities in the vicinity of the Site; however, a representative from Piedmont Natural Gas did not respond to our request by the issuance of this report. Stormwater at the Site is generally expected to sheet flow to the east and southeast towards the Catawba River or infiltrate into the pervious surface. 3.4 Surface Water H&H reviewed the National Wetlands Inventory (NWI) online database mapper and the USGS topographic map to determine the presence of surface water bodies and wetlands within a 1,500 ft radius of the subject Site. According to the NWI database map, no wetlands are located on the subject Site. The Catawba River borders the Site to the east. The Catawba River is identified on DEQ SWAP online database as a Water Supply IV (WS-IV) class water. A WS-IV class water is used for public water supply. 9 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc 4.0 Additional Assessment Activities The additional assessment activities were performed in general accordance with DEQ - IHSB Guidelines for Assessment and Cleanup dated October 2015, the DEQ DWM Vapor Intrusion Guidance dated April 2014, and most recent version of the US Environmental Protection Agency (EPA) Region IV Science and Ecosystem Support (SESD) Field Branches Quality System and Technical Procedures guidance. H&H conducted the Brownfields additional assessment activities at the Site on June 19 - 20, 2017. A discussion of the methods, analytical results, and conclusions of the Brownfields assessment activities are provided in the following sections. 4.1 Soil Gas Assessment To further evaluate the potential for vapor intrusion associated with future Site buildings, H&H installed and sampled nine additional temporary subsurface soil gas monitoring points (HHSG-6 through HHSG-14) in the central, northern, western, and eastern portions of the Site. The temporary subsurface soil gas monitoring points were installed and sampled in general accordance with the DEQ DWM Vapor Intrusion Guidance dated April 2014 and as described below. The soil gas sample locations and the proposed building footprints are depicted on Figure 3. The soil gas monitoring points were installed utilizing a stainless-steel hand auger to advance the borings to approximately 8 ft below ground surface (bgs). A stainless-steel screen point fitted with ¼-inch diameter Teflon® tubing was then advanced within the borehole to approximately 10 ft bgs using an AMS soil gas probe kit. Filter sand was placed around the annular space of the sample point and extended to approximately six inches above the bottom of the boring. The sampling points was completed by placing hydrated bentonite from the top of the filter sand to the ground surface. 10 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc Prior to sampling, a leak check was conducted at each soil gas monitoring point by constructing a shroud around the monitoring point and flooding the air within the shroud with helium gas. Using a syringe, a sample was collected from the gas in the shroud into a Tedlar® bag and analyzed for helium concentrations using a helium gas detector. Vapor from the monitoring point was purged and sampled outside of the shroud into a separate Tedlar® bag and analyzed using the helium gas detector to ensure that helium concentrations were less than 5% of the concentration measured within the shroud. Following successful field leak checks, the soil gas samples were collected into six-liter Summa canisters for laboratory analysis by connecting the Teflon® sample tubing to an airflow regulator using a brass nut and ferrule assembly to create an air tight seal. The airflow regulator was calibrated by the laboratory to allow the Summa canisters to fill slowly at a rate not greater than 200 milliliters per minute. Upon completion of sample collection, the air flow regulator was removed from the Summa canister and the samples were shipped via overnight courier to Con- Test under chain-of-custody protocol for analysis of VOCs by EPA Method TO-15. The soil gas monitoring point locations were recorded using a sub-meter GPS unit. 4.2 Quality Assurance/Quality Control H&H utilized standard quality assurance/quality control (QA/QC) processes during the Brownfields additional assessment activities. Non-dedicated sampling equipment, including the hand auger, was decontaminated using Liquinox® detergent and deionized water prior to and between each sampling location. The soil gas monitoring points were installed utilizing dedicated stainless-steel screen points and Teflon® tubing. Prior to soil gas sample collection, H&H conducted a five-minute soil gas sampling system shut in test for each sample to verify an airtight seal between the Summa canister and airflow regulator. All Summa canisters passed the five-minute soil gas sampling system shut-in test prior to sampling. 11 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc 5.0 Additional Assessment Results The results of analysis of the soil gas samples are summarized in Table 1. The laboratory analytical data report and chain-of-custody record are included in Appendix C. 5.1 Soil Gas Results Laboratory analytical results of the soil gas samples were compared to the October 2016 DEQ DWM Residential SGSLs. These screening levels are very conservative and based upon a LICR of 1 x 10-5 for potential carcinogenic effects and/or a HI of 0.2 for potential non-carcinogenic effects. Vapor intrusion mitigation for occupied residential structures is not typically considered unless the LICR exceeds the acceptable risk range of 1 x 10-4 to 1 x 10-6 for potential carcinogenic effects and a HI of 1 for potential non-carcinogenic effects. Laboratory analytical results indicate the presence of several VOCs above laboratory reporting limits. Of the compounds detected, only PCE was detected at a concentration exceeding Residential SGSLs. PCE was detected at a concentration above the Residential SGSL of 278 micrograms per cubic meter (µg/m3) in soil gas sample HHSG-8 (360 µg/m3) located in the central portion of the Site. No other compounds were detected at concentrations above the Residential SGSLs. 5.2 Soil Gas Sample Risk Calculations To further evaluate the detected compounds, H&H input the concentrations of the compounds in each sample into the DEQ Risk Calculator (August 2016 Version) to calculate cumulative potential carcinogenic and non-carcinogenic risks for the five soil gas samples. Copies of the calculations are provided in Appendix D. A summary of the calculated LICRs and HIs for each sample is provided below: 12 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc Sample ID Sample Location Residential Use Risk Exceeded? Calculated LICR Calculated HI HHSG-6 central 2.10E-06 0.15 NO HHSG-7 central 7.60E-07 0.089 NO HHSG-8 central 3.10E-06 0.17 NO HHSG-9 northeast 1.30E-06 0.11 NO HHSG-10 northeast 3.50E-06 0.052 NO HHSG-11 north 8.80E-06 0.18 NO HHSG-12 north 3.10E-07 0.023 NO HHSG-13 north 2.00E-06 0.065 NO HHSG-14 west 1.80E-06 0.044 NO As indicated above, the calculated LICRs were within the acceptable risk range of 1 x10-4 to 1 x 10-6 and the calculated HIs were all less than 1. 13 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc 6.0 Summary and Conclusions H&H completed Brownfields additional assessment activities at the Former Belmont Dyers Brownfields site located at 18 Linestowe Drive in Belmont, Gaston County, North Carolina. The Brownfields additional assessment activities were conducted to further evaluate the risk associated with future Site development including the potential for vapor intrusion. The Brownfields additional assessment activities included the completion of a receptor survey and the collection of nine soil gas samples for laboratory analysis. Based on the results of the assessment activities, H&H concludes the following: Receptor Survey • The Catawba River borders the Site to the east and is identified as a Water Supply IV (WS-IV) class water. • The City of Belmont water treatment plant intake is located approximately 150 ft north and upstream of the Site. Although a water treatment plant intake was identified approximately 150 ft north of the Site, based upon the upstream location of the surface water intake, flow velocity (3,030 ft3/sec), and that groundwater at the Site is not migrating towards the surface water intake, the potential for impact from the Site is low. • H&H did not identify a public water supply well located within a 1-mile radius of the Site, or a private water supply located within a 1,500 ft radius of the Site. • H&H did not identify a daycare facility or school operating within a 1,500 ft radius of the Site. • H&H did not identify basements associated with any structures located within a 1,000 ft radius of the Site. • H&H identified underground municipal water and sewer main lines, natural gas lines, and aboveground electric and cable lines located within a 100 ft radius of the Site. • H&H did not identify surface water features or wetlands located on the subject Site. 14 S:\AAA-Master Projects\Ralph Falls (RPH)\Task 2 - Brownfields\Additional Assessment Report\BF AA Report - Former Belmont Dyers.doc Soil Gas • The analytical results of the soil gas samples indicate that PCE was detected in one sample above the Residential SGSL in the central portion of the Site (HHSG-8). The results of the cumulative risk calculations indicate that the calculated LICRs were within the acceptable risk range of 1 x 10-4 to 1 x 10-6 and the calculated HIs were all less than 1. Based upon the results of our June 2017 soil gas sampling activities, vapor mitigation controls do not appear warranted for future buildings in the central, northern, western, or eastern portions of the Site. Ta b l e 1 ( P a g e 1 o f 2 ) Su m m a r y o f S o i l G a s A n a l y t i c a l R e s u l t s Fo r m e r B e l m o n t D y e r s Be l m o n t , N o r t h C a r o l i n a H& H J o b N o . R P H - 0 0 1 A c e t o n e B e n z e n e B r o m o d i c h l o r o m e t h a n e 2 - B u t a n o n e ( M E K ) C a r b o n D i s u l f i d e C a r b o n T e t r a c h l o r i d e C h l o r o f o r m C h l o r o m e t h a n e C y c l o h e x a n e D i b r o m o c h l o r o m e t h a n e 1 , 3 - D i c h l o r o b e n z e n e 1,1-Dichloroethylene Dichlorodifluoromethane (Freon 12)Ethanol Ethyl Acetate Ethylbenzene 4-Ethyltoluene Heptane HH S G - 1 5/ 1 6 / 2 0 1 7 8. 7 J 0 . 9 < 0 . 1 5 0 . 9 4 J 0 . 3 4 J < 0 . 1 5 0 . 5 3 < 0 . 0 4 4 < 0 . 2 0 < 0 . 2 3 8 . 9 < 0 . 0 2 4 2 . 3 5 . 3 J < 0 . 0 7 5 0 . 4 2 J < 0 . 1 1 2 . 1 HH S G - 2 5/ 1 6 / 2 0 1 7 17 7 . 5 < 0 . 1 5 2 . 1 J 0 . 3 2 J 0 . 1 8 J 1 . 1 < 0 . 0 4 4 2 . 2 < 0 . 2 3 1 0 < 0 . 0 2 4 2 . 6 6 . 0 J < 0 . 0 7 5 1 7 5 . 2 2 7 HH S G - 3 5/ 1 6 / 2 0 1 7 17 3 . 6 < 0 . 1 5 1 . 7 J 0 . 4 6 J < 0 . 1 5 3 . 6 < 0 . 0 4 4 1 . 9 < 0 . 2 3 1 0 < 0 . 0 2 4 1 3 3 . 5 J < 0 . 0 7 5 5 . 5 1 . 3 1 0 5/ 1 6 / 2 0 1 7 <9 9 < 5 . 0 < 4 . 4 < 6 . 6 < 3 . 2 < 4 . 6 < 3 . 4 < 1 . 3 < 5 . 9 < 6 . 8 6 . 1 J < 0 . 7 3 < 6 . 4 < 1 0 0 < 2 . 2 5 . 5 J < 3 . 3 7 . 1 J 5/ 1 6 / 2 0 1 7 <9 9 < 5 . 0 < 4 . 4 < 6 . 6 < 3 . 2 < 4 . 6 < 3 . 4 < 1 . 3 < 5 . 9 < 6 . 8 6 . 1 J < 0 . 7 3 < 6 . 4 < 1 0 0 < 2 . 2 5 . 7 J < 3 . 3 6 . 1 J HH S G - 5 5/ 1 6 / 2 0 1 7 24 B 5 . 3 8 . 7 4 . 1 J 0 . 7 6 J 0 . 6 3 J 2 6 < 0 . 0 8 8 < 0 . 4 0 1 . 0 J 9 . 7 < 0 . 0 4 9 2 . 9 7 . 0 J < 0 . 1 5 3 6 2 9 2 6 HH S G - 6 6/ 2 0 / 2 0 1 7 18 0 . 4 1 < 0 . 4 5 2 . 5 J < 0 . 2 3 < 0 . 4 8 5 . 9 1 . 3 < 0 . 2 0 < 0 . 4 3 8 . 6 1 . 4 2 . 4 6 . 3 J < 0 . 2 7 0 . 6 7 1 0 . 4 J HH S G - 7 6/ 2 0 / 2 0 1 7 12 0 . 3 5 < 0 . 4 5 2 . 4 J 0 . 3 J < 0 . 4 8 2 1 1 . 1 < 0 . 4 3 8 . 3 0 . 9 1 2 . 4 5 . 7 J 0 . 9 8 0 . 7 7 0 . 9 9 0 . 8 HH S G - 8 6/ 2 0 / 2 0 1 7 14 0 . 7 1 2 . 2 J 0 . 3 9 J < 0 . 4 8 8 . 9 0 . 9 5 0 . 7 9 < 0 . 4 3 8 . 1 1 1 0 2 . 5 6 . 8 J 1 . 1 1 . 2 2 . 9 0 . 4 8 HH S G - 9 6/ 2 0 / 2 0 1 7 17 0 . 4 9 < 0 . 4 5 2 . 5 J 0 . 4 6 J < 0 . 4 8 3 . 7 0 . 9 2 . 8 < 0 . 4 3 8 < 0 . 3 0 2 . 3 4 . 3 J < 0 . 2 7 1 . 2 4 . 4 0 . 5 7 HH S G - 1 0 6 / 2 0 / 2 0 1 7 19 0 . 5 2 1 . 3 2 . 4 J 0 . 3 1 J < 0 . 4 8 1 2 1 0 . 4 8 < 0 . 4 3 8 . 6 < 0 . 3 0 2 . 4 5 . 3 J 0 . 5 6 J 1 1 . 5 0 . 4 8 HH S G - 1 1 6 / 2 0 / 2 0 1 7 15 0 . 6 3 4 . 6 2 . 1 J 0 . 2 9 J < 0 . 4 8 2 7 1 . 1 0 . 6 3 0 . 6 J 1 1 < 0 . 3 0 2 . 5 5 . 7 J 0 . 6 1 J 3 . 4 5 . 5 0 . 7 HH S G - 1 2 6 / 2 0 / 2 0 1 7 24 0 . 3 6 < 0 . 4 5 3 . 5 J < 0 . 2 3 < 0 . 4 8 0 . 9 3 1 . 7 < 0 . 2 0 < 0 . 4 3 4 . 1 1 . 8 2 . 4 6 . 3 J 0 . 4 5 J < 0 . 3 2 < 0 . 3 1 0 . 3 J HH S G - 1 3 6 / 2 0 / 2 0 1 7 15 0 . 4 2 0 . 7 1 2 J < 0 . 2 3 < 0 . 4 8 5 . 2 1 . 4 < 0 . 2 0 < 0 . 4 3 5 . 3 < 0 . 3 0 2 . 4 6 . 3 J 0 . 8 0 . 8 4 1 . 1 0 . 3 7 J HH S G - 1 4 6 / 2 0 / 2 0 1 7 15 0 . 4 0 . 6 J 2 . 3 J 0 . 7 5 J < 0 . 4 8 5 . 1 1 . 3 1 . 8 < 0 . 4 3 3 < 0 . 3 0 2 . 5 7 . 8 1 . 1 0 . 6 1 0 . 8 9 0 . 3 5 J 21 6 , 0 0 0 1 2 0 2 5 . 3 3 4 , 8 0 0 4 , 8 7 0 1 5 6 4 0 . 7 6 2 6 4 1 , 7 0 0 N S N S 1 , 3 9 0 6 9 5 N S 4 8 7 3 7 4 N S N S No t e s : 1) N o r t h C a r o l i n a D e p a r t m e n t o f E n v i o r n m e n t a l Q u a l i t y ( D E Q ) D i v i s i o n o f W a s t e M a n a g e m e n t ( D W M ) R e s i d e n t i a l S u b - s l a b a n d E x t e r i o r S o i l G a s S c r e e n i n g L e v e l s ( S G S L s ) ( O c t o b e r 2 0 1 6 ) Bo l d i n d i c a t e s c o n c e n t r a t i o n e x c e e d s D W M R e s i d e n t i a l S G S L ( O c t o b e r 2 0 1 6 ) On l y c o m p o u n d s d e t e c t e d i n a t l e a s t o n e s a m p l e s h o w n µg / m 3 = m i c r o g r a m s p e r c u b i c m e t e r ; N S = N o t S p e c i f i e d J = d e t e c t e d c o n c e n t r a t i o n i s a b o v e t h e l a b o r a t o r y m e t h o d d e t e c t i o n l i m i t s , b u t b e l o w t h e l a b o r a t o r y c a l i b r a t e d r e p o r t i n g l i m i t . T h e r e f o r e , t h e r e p o r t e d c o n c e n t r a t i o n i s a n e s t i m a t e d v a l u e . Z- 0 1 = L a b o r a t o r y c o n t r o l s a m p l e r e c o v e r y o u t s i d e o f a c c e p t a b l e l i m i t s o f 7 0 % - 1 3 0 % . C l a s s i f i e d b y t h e l a b o r a t o r y a s d i f f i c u l t c o m p o u n d a n d p a s s e s t h e i n h o u s e l i m i t s o f 5 0 % - 1 5 0 % . B = A n a l y t e i s f o u n d i n t h e a s s o c i a t e d b l a n k a s w e l l a s i n t h e s a m p l e . HH S G - 4 / DU P - 1 Re s i d e n t i a l S o i l G a s S c r e e n i n g L e v e l (1 ) S a m p l e I D S a m p l i n g D a t e A n a l y t i c a l M e t h o d TO - 1 5 µg / m 3 S:\ A A A - M a s t e r P r o j e c t s \ R a l p h F a l l s ( R P H ) \ T a b l e s \ D a t a T a b l e s 7/ 2 1 / 2 0 1 7 Table 1 (Page 1 of 2)Hart & Hickman, PC Ta b l e 1 ( P a g e 2 o f 2 ) Su m m a r y o f S o i l G a s A n a l y t i c a l R e s u l t s Fo r m e r B e l m o n t D y e r s Be l m o n t , N o r t h C a r o l i n a H& H J o b N o . R P H - 0 0 1 H e x a n e 2 - H e x a n o n e ( M B K ) I s o p r o p a n o l M e t h y l e n e C h l o r i d e N a p h t h a l e n e P r o p e n e S t y r e n e T e t r a c h l o r o e t h y l e n e T e t r a h y d r o f u r a n T o l u e n e 1 , 1 , 1 - T r i c h l o r o e t h a n e Trichloroethylene Trichlorofluoromethane (Freon 11)1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene m&p-Xylene o-Xylene HH S G - 1 5/ 1 6 / 2 0 1 7 2. 5 J < 0 . 0 2 6 < 0 . 3 0 < 0 . 4 2 < 0 . 2 9 < 0 . 5 3 0 . 1 5 J 2 0 < 0 . 0 4 2 3 . 9 < 0 . 0 9 8 < 0 . 1 6 1 2 0 . 5 2 J 0 . 3 7 J < 0 . 0 9 8 1 . 9 0 . 4 4 HH S G - 2 5/ 1 6 / 2 0 1 7 12 J < 0 . 0 2 6 < 0 . 3 0 0 . 9 6 J < 0 . 2 9 0 . 9 7 J 0 . 2 7 J 32 0 <0 . 0 4 2 9 4 0 . 2 4 J < 0 . 1 6 5 7 0 . 4 9 J 1 4 4 . 6 9 0 2 3 HH S G - 3 5/ 1 6 / 2 0 1 7 13 J < 0 . 0 2 6 < 0 . 3 0 < 0 . 4 2 < 0 . 2 9 3 . 9 J < 0 . 0 8 3 1 5 0 < 0 . 0 4 2 3 3 0 . 5 1 J < 0 . 1 6 8 1 0 . 4 3 J 4 . 1 1 . 4 3 0 7 . 3 5/ 1 6 / 2 0 1 7 <1 9 < 0 . 7 7 < 9 . 0 < 1 3 < 8 . 6 < 1 6 < 2 . 5 16 , 0 0 0 <1 . 3 1 8 1 3 J < 4 . 8 2 0 0 < 6 . 4 7 . 1 J 3 . 5 J 2 9 6 . 3 J 5/ 1 6 / 2 0 1 7 <1 9 < 0 . 7 7 < 9 . 0 < 1 3 < 8 . 6 < 1 6 < 2 . 5 16 , 0 0 0 <1 . 3 1 8 1 3 J < 4 . 8 2 0 0 < 6 . 4 7 . 1 J 2 . 9 J 3 0 5 . 7 J HH S G - 5 5/ 1 6 / 2 0 1 7 6. 7 J < 0 . 0 5 1 0 . 9 0 J 1 . 0 J 1 . 3 Z - 0 1 < 1 . 1 0 . 4 8 J 1, 9 0 0 <0 . 0 8 4 1 2 0 7 . 5 J 0 . 5 8 J 5 2 0 . 4 3 J 85 32 2 1 0 5 1 HH S G - 6 6/ 2 0 / 2 0 1 7 <0 . 6 2 < 0 . 2 8 0 . 9 9 J 0 . 4 9 J 0 . 4 9 J < 0 . 5 3 < 0 . 2 7 1 5 0 < 0 . 2 1 3 < 0 . 4 3 < 0 . 3 6 1 1 0 0 . 6 7 J 7 . 6 3 . 9 3 . 2 0 . 7 6 HH S G - 7 6/ 2 0 / 2 0 1 7 <0 . 6 2 < 0 . 2 8 0 . 7 8 J 0 . 4 3 J < 0 . 4 8 < 0 . 5 3 < 0 . 2 7 8 0 < 0 . 2 1 3 . 5 < 0 . 4 3 < 0 . 3 6 2 1 0 1 . 1 J 6 . 7 4 3 . 5 0 . 7 8 HH S G - 8 6/ 2 0 / 2 0 1 7 <0 . 6 2 < 0 . 2 8 1 J 0 . 5 1 J < 0 . 4 8 < 0 . 5 3 < 0 . 2 7 36 0 <0 . 2 1 4 . 5 < 0 . 4 3 6 . 2 1 4 0 . 6 J 1 3 7 . 1 5 . 9 1 . 2 HH S G - 9 6/ 2 0 / 2 0 1 7 0. 7 7 J 0 . 6 4 . 5 J < 0 . 4 2 0 . 5 3 J < 0 . 5 3 < 0 . 2 7 3 4 < 0 . 2 1 3 . 9 0 . 5 5 < 0 . 3 6 1 6 0 0 . 7 8 J 1 9 9 . 7 6 . 1 1 . 5 HH S G - 1 0 6 / 2 0 / 2 0 1 7 0. 7 3 J < 0 . 2 8 1 . 4 J < 0 . 4 2 < 0 . 4 8 < 0 . 5 3 < 0 . 2 7 5 . 2 < 0 . 2 1 4 . 3 < 0 . 4 3 < 0 . 3 6 1 7 0 . 6 1 J 1 0 5 . 3 5 1 . 3 HH S G - 1 1 6 / 2 0 / 2 0 1 7 0. 8 2 J < 0 . 2 8 0 . 9 2 J < 0 . 4 2 0 . 5 6 J < 0 . 5 3 < 0 . 2 7 2 . 3 < 0 . 2 1 8 . 8 < 0 . 4 3 < 0 . 3 6 1 7 0 . 8 6 J 3 8 2 0 1 6 3 . 5 HH S G - 1 2 6 / 2 0 / 2 0 1 7 <0 . 6 2 0 . 6 2 0 . 9 4 J 0 . 4 7 J < 0 . 4 8 1 . 9 J < 0 . 2 7 1 9 < 0 . 2 1 2 . 1 < 0 . 4 3 < 0 . 3 6 1 . 9 J 0 . 5 7 J 1 . 4 0 . 6 4 1 . 1 0 . 3 8 HH S G - 1 3 6 / 2 0 / 2 0 1 7 <0 . 6 2 < 0 . 2 8 0 . 8 3 J 0 . 5 1 J 1 . 1 J < 0 . 5 3 < 0 . 2 7 5 . 7 0 . 9 7 3 . 5 < 0 . 4 3 < 0 . 3 6 1 . 6 J 0 . 6 4 J 1 1 5 3 . 6 0 . 9 1 HH S G - 1 4 6 / 2 0 / 2 0 1 7 0. 7 8 J < 0 . 2 8 0 . 8 J 0 . 4 9 J 0 . 5 9 J < 0 . 5 3 < 0 . 2 7 < 0 . 3 4 < 0 . 2 1 4 . 4 < 0 . 4 3 < 0 . 3 6 1 . 5 J 0 . 7 4 J 8 . 3 3 . 7 2 . 7 0 . 7 6 4, 8 7 0 2 0 9 1 , 3 9 0 4 , 1 7 0 2 0 . 9 N S 6 , 9 5 0 2 7 8 1 3 , 9 0 0 3 4 , 8 0 0 3 4 , 8 0 0 1 3 . 9 N S 2 0 9 , 0 0 0 4 8 . 7 N S 6 9 5 6 9 5 No t e s : 1) N o r t h C a r o l i n a D e p a r t m e n t o f E n v i o r n m e n t a l Q u a l i t y ( D E Q ) D i v i s i o n o f W a s t e M a n a g e m e n t ( D W M ) R e s i d e n t i a l S u b - s l a b a n d E x t e r i o r S o i l G a s S c r e e n i n g L e v e l s ( S G S L s ) ( O c t o b e r 2 0 1 6 ) Bo l d i n d i c a t e s c o n c e n t r a t i o n e x c e e d s D W M R e s i d e n t i a l S G S L ( O c t o b e r 2 0 1 6 ) On l y c o m p o u n d s d e t e c t e d i n a t l e a s t o n e s a m p l e s h o w n µg / m 3 = m i c r o g r a m s p e r c u b i c m e t e r ; N S = N o t S p e c i f i e d J = d e t e c t e d c o n c e n t r a t i o n i s a b o v e t h e l a b o r a t o r y m e t h o d d e t e c t i o n l i m i t s , b u t b e l o w t h e l a b o r a t o r y c a l i b r a t e d r e p o r t i n g l i m i t . T h e r e f o r e , t h e r e p o r t e d c o n c e n t r a t i o n i s a n e s t i m a t e d v a l u e . Z- 0 1 = L a b o r a t o r y c o n t r o l s a m p l e r e c o v e r y o u t s i d e o f a c c e p t a b l e l i m i t s o f 7 0 % - 1 3 0 % . C l a s s i f i e d b y t h e l a b o r a t o r y a s d i f f i c u l t c o m p o u n d a n d p a s s e s t h e i n h o u s e l i m i t s o f 5 0 % - 1 5 0 % . B = A n a l y t e i s f o u n d i n t h e a s s o c i a t e d b l a n k a s w e l l a s i n t h e s a m p l e . µg / m 3 Re s i d e n t i a l S o i l G a s S c r e e n i n g L e v e l (1 ) S a m p l e I D S a m p l i n g D a t e A n a l y t i c a l M e t h o d HH S G - 4 / DU P - 1 TO - 1 5 S:\ A A A - M a s t e r P r o j e c t s \ R a l p h F a l l s ( R P H ) \ T a b l e s \ D a t a T a b l e s 7/ 2 1 / 2 0 1 7 Table 1 (Page 2 of 2)Hart & Hickman, PC Ta b l e 2 ( P a g e 1 o f 1 ) Su m m a r y o f D E Q R i s k A s s e s s m e n t C a l c u l a t o r O u t p u t Fo r m e r B e l m o n t D y e r s F a c i l i t y 18 L i n e s t o w e D r i v e Be l m o n t , N o r t h C a r o l i n a H& H J o b N o . R P H - 0 0 1 Ca l c u l a t e d L I C R C a l c u l a t e d H I HH S G - 1 e a s t 2 . 7 0 E - 0 7 0 . 0 1 8 N O HH S G - 2 s o u t h e a s t 2 . 3 0 E - 0 6 0 . 3 4 N O HH S G - 3 s o u t h e a s t 1 . 7 0 E - 0 6 0 . 1 5 N O HH S G - 4 s o u t h 4 . 5 0 E - 0 5 12 YES HH S G - 5 s o u t h 1 . 7 0 E - 0 5 1. 8 YES HH S G - 6 c e n t r a l 2 . 1 0 E - 0 6 0 . 1 5 N O HH S G - 7 c e n t r a l 7 . 6 0 E - 0 7 0 . 0 8 9 N O HH S G - 8 c e n t r a l 3 . 1 0 E - 0 6 0 . 1 7 N O HH S G - 9 n o r t h e a s t 1 . 3 0 E - 0 6 0 . 1 1 N O HH S G - 1 0 n o r t h e a s t 3 . 5 0 E - 0 6 0 . 0 5 2 N O HH S G - 1 1 n o r t h 8 . 8 0 E - 0 6 0 . 1 8 N O HH S G - 1 2 n o r t h 3 . 1 0 E - 0 7 0 . 0 2 3 N O HH S G - 1 3 n o r t h 2 . 0 0 E - 0 6 0 . 0 6 5 N O HH S G - 1 4 w e s t 1 . 8 0 E - 0 6 0 . 0 4 4 N O No t e s : 1) B a s e d o n t h e N o r t h C a r o l i n a D e p a r t m e n t o f E n v i r o n m e n t a l Q u a l i t y ( D E Q ) R i s k C a l c u l a t o r f o r R e s i d e n t i a l U s e S c e n a r i o o f t h e S o i l G a s t o I n d o o r A i r E x p o s u r e P a t h w a y ( A u g u s t 2 0 1 6 V e r s i o n ) Bo l d i n d i c a t e s L I C R e x c e e d s t h e a c c e p t a b l e r a n g e o f 1 x 1 0 -4 t o 1 x 1 0 -6 f o r p o t e n t i a l c a r c i n o g e n i c e f f e c t s an d / o r a H I o f 1 f o r p o t e n t i a l c o n - c a r c i n o g e n i c e f f e c t s LI C R = L i f e t i m e I n c r e m e n t a l C a n c e r R i s k HI = H a z a r d I n d e x Sa m p l e I D S a m p l e L o c a t i o n Re s i d e n t i a l (1 ) Ri s k E x c e e d e d ? S:\ A A A - M a s t e r P r o j e c t s \ R a l p h F a l l s ( R P H ) \ T a b l e s \ D a t a T a b l e s 7/2 1 / 2 0 1 7 Table 2 (Page 1 of 1)Hart & Hickman, PC SITE 0 2000 4000 APPROXIMATE SCALE IN FEET N U.S.G.S. QUADRANGLE MAP QUADRANGLE 7.5 MINUTE SERIES (TOPOGRAPHIC) BELMONT, NORTH CAROLINA 1997 TITLE PROJECT SITE LOCATION MAP FORMER BELMONT DYERS 18 LINESTOWE DRIVEBELMONT, NORTH CAROLINA DATE: JOB NO: REVISION NO: FIGURE: 2-12-17 0 1RPH-001 CATAWBA RIVER FL O W D I R E C T I O N JOB NO. RPH-001 REVISION NO. 0DATE: 7-19-17 FIGURE NO. 2 FORMER BELMONT DYERS FACILITY 18 LINESTOWE DRIVE BELMONT, NORTH CAROLINA 2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology RECEPTOR SURVEY MAP LEGEND SITE PROPERTY BOUNDARY 1,500 FT RADIUS SANITARY SEWER LINE WATER LINE PRIVATE/ FIRE LINE ZONING KEY GENERAL RESIDENTIAL (G-R) BUSINESS (BC-D) INFILL RESIDENTIAL (INF-R) NOTE: UTILITIES MAP PROVIDED BY CITY OF BELMONT UTILITIES DEPARTMENT.SURFACE WATER INTAKE PUMP STATION VA C A N T / WO O D E D WATER TREATMENT PLANT \\ h h f s 0 1 . h a r t h i c k m a n . l o c a l \ m a s t e r f i l e s \ A A A - M a s t e r P r o j e c t s \ R a l p h F a l l s ( R P H ) \ T a s k 2 - B r o w n f i e l d s \ R e c e p t o r S u r v e y \ R e c e p t o r S u r v e y . d w g , F I G 2 , 7 / 1 9 / 2 0 1 7 2 : 1 1 : 1 9 P M , z b a r l o w CAT A W B A D R I V E LIN E S T O W E D R I V E VOLK STREET R I V E R D R I V E LI N E S T O W E D R I V E LINESTOWE DRIVE PMW-1IR PMW-1DR PMW-1SRPMW-2SR PMW-5SR PMW-4SR PMW-3SR PMW-6IR PMW-6SR HHSG-5 HHSG-4 HHSG-3 HHSG-2 HHSG-1 HHSG-10 HHSG-9 HHSG-7 HHSG-6 HHSG-8 HHSG-11HHSG-12 HHSG-13 HHSG-14 LEGEND SITE PROPERTY BOUNDARY SHALLOW MONITORING WELL LOCATION DEEP MONITORING WELL LOCATION PROPOSED BUILDING FOOTPRINT SOIL GAS SAMPLE LOCATION JOB NO. RPH-001 REVISION NO. 0DATE: 7-19-17 FIGURE NO. 3 FORMER BELMONT DYERS 18 LINESTOWE DRIVE BELMONT, NORTH CAROLINA SITE PLAN WITH SOIL GAS SAMPLES LOCATIONS MAP R I V E R D R I V E CATAWBA RIVER MULTI-FAMILY RESIDENCES CITY OF BELMONT PUMP STATION 2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology PARCEL NO. 126390 PARCEL NO. 126388 PARCEL NO. 126388 PARCEL NO. 126388 PARCEL NO. 126388 NOTE: SOIL GAS SAMPLES HHSG-1 THROUGH HHSG-5 WERE COLLECTED BY H&H ON 5/16/17, & SOIL GAS SAMPLES HHSG-6 THROUGH HHSG-14 WERE COLLECTED BY H&H ON 6/20/17. S:\ A A A - M a s t e r P r o j e c t s \ R a l p h F a l l s ( R P H ) \ T a s k 2 - B r o w n f i e l d s \ W o r k P l a n \ F i g u r e s \ S a m p l e L o c a t i o n M a p . d w g , F I G 3 , 7 / 1 9 / 2 0 1 7 4 : 5 2 : 0 4 P M , z b a r l o w Appendix A Brownfields Receptor Survey Form North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Site:Former Belmont Dyers Address: 18 Linestowe Drive City:Belmont County:GastonBrownfields Project Number: 20094-16-036 Property and Building Characteristics a. Provide occupancy and use information. c. Describe the foundation construction. Include details on type, floor construction, and depth below grade. e. Are any subslab ventilation systems or moisture barriers in place? If so, please provide details. No subslab ventilation or moisture barriers are present. % of property that is grassed areas % of property that is agricultural crops The abandoned office building is one-story and constructed with wood frame and brick exterior. Windows and doors are currently boarded up. The foundation is constructed with block and concrete slab above grade with vented crawl space. BROWNFIELDS PROPERTY RECEPTOR SURVEY This form was created to clarify and simplify preparing a receptor survey for a brownfield site. Please provide the information requested below. Distances are measured from the site property boundary unless otherwise indicated by the DEQ Brownfield’s Project Manager (PM). Current Usage Proposed Usage NA Surface Conditions Size of Property (acres) % of property that is paved 11.32 15 80 4 1 The Site contains one abandoned/vacant former office building (2,000 sq ft). The remainder of the Site is vacant vegetated land. 0 15 15 0 % of property that is wooded/brush If an existing building is on-site, please respond to the following. Information can be provided on additional sheets as needed. If numerous buildings are on-site, consult with your PM as only information on specific buildings may be needed. b. Describe the construction of the building including materials (e.g. wood frame, block), type and size of openings (e.g. windows, bay doors), and height (number of stories). % of property that is covered by buildings d. Describe the HVAC system in the building. Include available details on type, equipment location, source of air return, and design considerations (e.g. positive pressure?). 40 No HVAC system is present. 30 DRAFT - Subject to Change Rev. 09/2015 Page 1 of 4 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Surrounding Property Land Use North South East West N- - Y- - Utilities Is there a septic system on-site? (Y or N) __N_______ Please provide the utility providers for the subject property a. Natural Gas ___Piedmont Natural Gas b. Sewer ___City of Belmont Utilities c. Electricity __Duke Power d. Other ___ For surrounding properties, please complete the following table with available information. N Y0 ft western and eastern portions of the Site N Y 10 ft along Linestowe Drive Y 10 ft along Linestowe Drive unknown unknown Distance (ft) Is there a residence within 1,000 ft of the Property?Residences surround the Site to the north, west, and south (Figure 2). Is a buried electrical cable main within 100 ft of Property boundary? Is a sanitary sewer within 100 ft of the Property boundary? Is a storm water pipe within 100 ft of the Property boundary? Utility/Potential Receptor Water - City of Belmont Utilities Is a buried telephone/ cable main within 100 ft of the Property boundary? Y/N * Is a water line main within 100 ft of Property boundary? Is a septic system leach field within 500 ft of the Property boundary? Direction single-family residential Catawba River For the subject property, please provide a map of known buried utilities. If available, include depth to top, construction material, and diameter of the utilities. In addition, please provide the following information on utility providers. If additional assessment is required, the public utility locators should be contacted. This information can then be added to a site map. Please provide information on the following land uses in the vicinity of the subject site, including a map of the surrounding areas. If specific receptors are present, please provide addresses of the facilities. Is a natural gas line main within 100 ft of the Property boundary? * If numerous facilities of interest are present, their locations can be placed on a map in lieu of providing specific addresses. same same Y/N * same single-family residential Zoning/Land Use same single-family residential and townhouse units Is a school or daycare center within 1,000 ft of the Property? Specific Land Uses of Interest NIs there a basement within 1,000 ft of the Property - Address -- - * If yes, please provide a map or detailed information (distance, direction, depth) of the utility in correlation with the subject property. DirectionDistance (ft) Current Use/Occupant Proposed Usage DRAFT - Subject to Change Rev. 09/2015 Page 2 of 4 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Water Supply What is the potable water supply for the property? Public ___X___ Private ______ N N Is a public water supply well within 1 mile of the Property boundary? Is an irrigation well within 1,500 ft of the Property boundary? Is a private water supply well within 1,500 ft of the Property boundary?N Distance (ft)Direction If Private, please provide details of the water supply source (i.e. well location, well construction, etc). If public, please include the water providers name. AddressY/NWater Supply Wells Please provide the following information regarding water supply wells in the vicinity of the Property. At a minimum, a windshield survey within 1,500 ft of the property boundaries should be completed to determine if water supply or irrigation wells may be present. Information from applicable databases can and should be utilized; however, should not be utilized in lieu of the windshield survey. If multiple wells are present within the requested radius, please provide a map of the well locations. Please note, the PM may opt for a more extensive water supply well survey if needed. City of Belmont Utilities The purpose of this section is to provide information on the water supply for the site and surrounding areas. DRAFT - Subject to Change Rev. 09/2015 Page 3 of 4 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Surface Water & Wetlands The purpose of this section is to provide information on the presence of surface waters and/or wetlands on, or in the vicinity of the Property. Natural rock and sediment. The Catawba River is adjacent to the east. No obvious wetlands on the Site. According to a review of the FEMA flood map, the far eastern portion of the Site falls within the 100 year flood zone. b. List the uses of the water body. c. What is the source of the water for the water body? d. What is the nature of the bottom of the water body (e.g., rocky or concrete bottom, drainage ways or impoundments) If no on-site surface water features, what is the nearest surface water body? Are there any wetlands present on the property? If no wetlands on-site, are wetlands suspected on adjoining properties? Are there surface water features on the property? (If yes, please complete a. to d.)No; however, the Catawba River flows along the eastern Site property boundary. a. Is the water body naturally developed or man-made?Naturally developed. Power generation, recreation, water supply. The Catawba River originates in the western mountain region of North Carolina. Provide Information regarding Surface Water and Wetlands Response/Comments DRAFT - Subject to Change Rev. 09/2015 Page 4 of 4 Appendix B Photographic Log Photograph 1: Catawba River, located adjacent to the east of the Site. Photograph 2: Pump station and transformer station location adjacent to the north of the Site. RP H -00 1 FORMER BELMONT DYERS 18 LINESTOWE DRIVE BELMONT, NORTH CAROLINA 2923 S. Tryon Street, Suite 100 Charlotte, NC 28203 704.586.0007(p) 704.586.0373(f) Photograph 3: City of Belmont water treatment plant intake, located approximately 150 ft upstream of the Site. Photograph 4: City of Belmont water treatment plant, located approximately 1,000 ft west-northwest of the Site. RP H -00 1 FORMER BELMONT DYERS 18 LINESTOWE DRIVE BELMONT, NORTH CAROLINA 2923 S. Tryon Street, Suite 100 Charlotte, NC 28203 704.586.0007(p) 704.586.0373(f) Appendix C Laboratory Analytical Report Page 1 of 31 Page 2 of 31 Page 3 of 31 Page 4 of 31 Page 5 of 31 Page 6 of 31 Page 7 of 31 Page 8 of 31 Page 9 of 31 Page 10 of 31 Page 11 of 31 Page 12 of 31 Page 13 of 31 Page 14 of 31 Page 15 of 31 Page 16 of 31 Page 17 of 31 Page 18 of 31 Page 19 of 31 Page 20 of 31 Page 21 of 31 Page 22 of 31 Page 23 of 31 Page 24 of 31 Page 25 of 31 Page 26 of 31 Page 27 of 31 Page 28 of 31 Page 29 of 31 Page 30 of 31 Page 31 of 31 Appendix D DEQ Risk Calculators Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-1 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 2.7E-07 1.8E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 2.1E-08 1.5E-03 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? PRIMARY CALCULATORS Resident Non-Residential Worker User Defined North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-2 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 2.3E-06 3.4E-01 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.7E-07 2.7E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM PRIMARY CALCULATORS Resident Non-Residential Worker User Defined If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-3 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.7E-06 1.5E-01 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.3E-07 1.2E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM PRIMARY CALCULATORS Resident Non-Residential Worker User Defined If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-4 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 4.5E-05 1.2E+01 YES Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 3.4E-06 9.2E-01 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM PRIMARY CALCULATORS Resident Non-Residential Worker User Defined If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-5 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.7E-05 1.8E+00 YES Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.3E-06 1.5E-01 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM PRIMARY CALCULATORS Resident Non-Residential Worker User Defined If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-6 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 2.1E-06 1.5E-01 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.6E-07 1.2E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM PRIMARY CALCULATORS Resident Non-Residential Worker User Defined If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-7 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 7.6E-07 8.9E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 5.8E-08 7.1E-03 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM PRIMARY CALCULATORS Resident Non-Residential Worker User Defined If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-8 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 3.1E-06 1.7E-01 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 2.2E-07 1.3E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM PRIMARY CALCULATORS Resident Non-Residential Worker User Defined If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-9 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.3E-06 1.1E-01 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 9.7E-08 9.0E-03 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? PRIMARY CALCULATORS Resident Non-Residential Worker User Defined North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-10 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 3.5E-06 5.2E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 2.7E-07 4.1E-03 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? PRIMARY CALCULATORS Resident Non-Residential Worker User Defined North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-11 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 8.8E-06 1.8E-01 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 6.7E-07 1.4E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? PRIMARY CALCULATORS Resident Non-Residential Worker User Defined North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-12 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 3.1E-07 2.3E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 2.4E-08 1.8E-03 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM PRIMARY CALCULATORS Resident Non-Residential Worker User Defined If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-13 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 2.0E-06 6.5E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.6E-07 5.1E-03 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? PRIMARY CALCULATORS Resident Non-Residential Worker User Defined North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table Summary of Risk Assessment Output Output Form 1A Site ID: 20094-16-036 Exposure Unit ID: HHSG-14 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Groundwater Combined Pathways 0.0E+00 0.0E+00 NO Construction Worker Soil Combined Pathways 0.0E+00 0.0E+00 NO Soil Combined Pathways 0.0E+00 0.0E+00 NO Surface Water Combined Pathways 0.0E+00 0.0E+00 NO Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.8E-06 4.4E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.3E-07 3.5E-03 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Protection of Surface Water Exceedence of SSTLs? Exceedence of SSTLs? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker FATE & TRANSPORT CALCULATORS Target SSTLs Exceeded? Protection of Groundwater Use Exceedence of SSTLs? Exceedence of SSTLs? PRIMARY CALCULATORS Resident Non-Residential Worker User Defined North Carolina DEQ Risk Calculator August 2016 Version Basis: May 2016 EPA RSL Table