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Home My WebLink About25031_Wix Filtration II_BAR WP Approval_20230815 August 15, 2023 Data Gap Assessment Work Plan WIX FILTRATION II 1301 & 1315 East Ozark Avenue Gastonia, Gaston County, North Carolina Brownfields Project Number 25031‐21‐036 Revision Number: 02 Prepared for: North Carolina Department of Environmental Quality Brownfields Redevelopment Section 610 East Center Avenue, Suite 301 Mooresville, North Carolina 28115 Prepared by: GTA Associates, Inc. 710 Peninsula Lane, Suite B Charlotte, North Carolina 28273 Corporate Professional Geologist License Number: C‐435 for i TABLE OF CONTENTS 1.0 INTRODUCTION .................................................................................................................... 1 1.1 Site Location, Address, and Acreage ................................................................................ 1 1.2 Site History ....................................................................................................................... 1 1.3 Data Gaps ......................................................................................................................... 3 2.0 SCOPE OF WORK ................................................................................................................... 4 2.1 Property Receptor Survey ................................................................................................ 4 2.2 Geophysical Survey .......................................................................................................... 4 2.3 UST Removal .................................................................................................................... 5 2.4 Underground Utility Locating ........................................................................................... 5 2.5 Media Sampling ............................................................................................................... 5 2.5.1 Soil ............................................................................................................................... 6 2.5.2 Groundwater ............................................................................................................... 6 2.5.3 Soil Vapor .................................................................................................................... 7 3.0 SAMPLING METHODOLOGY ................................................................................................. 8 3.1 Soil Sampling .................................................................................................................... 8 3.1.1 Surface Soil .................................................................................................................. 8 3.1.2 Subsurface Soil ............................................................................................................ 8 3.2 Groundwater Sampling .................................................................................................... 8 3.3 Soil Vapor Sampling ......................................................................................................... 9 4.0 LABORATORY ANALYSIS ..................................................................................................... 10 5.0 QA/QC PROCEDURES ......................................................................................................... 13 6.0 INVESTIGATION DERIVED WASTE ...................................................................................... 13 7.0 REPORTING ......................................................................................................................... 13 LIST OF FIGURES Figure 1 Site Location Map Figure 2 2023 Aerial Photograph Figure 3 Preliminary Redevelopment Plan Figure 4 Historic Sample Locations Figure 5 Proposed Sample Locations LIST OF TABLES Table 1 – Brownfield Sampling Matrix ATTACHMENTS Brownfields Property Receptor Survey DEQ Brownfields Redevelopment Section‐Assessment Work Plan Approval Page DATA GAP ASSESSMENT WORK PLAN WIX FILTRATION II 1301 &1315 EAST OZARK AVENUE GASTONIA, GASTON COUNTY, NORTH CAROLINA Brownfields Project Number 25031‐21‐036 1.0 INTRODUCTION 1.1 Site Location, Address, and Acreage The Wix Filtration II Brownfields property is located at 1301 & 135 East Ozark Avenue within the city limits of Gastonia, Gaston County, North Carolina (Figure 1). The Site is comprised of two vacant parcels of commercial land encompassing approximately 4.51 acres and currently contains the concrete footings, slabs, and a portion of a building associated with the former Wix Filtration property (1301 East Ozark Avenue) and an existing commercial building (former Henry Yarns property) located at 1315 East Ozark Avenue (Figure 2). Preliminary redevelopment plans include upgraded entrance/exit from Ozark Avenue, asphalt‐paved parking areas, and ground level commercial and retail space with multi‐family residential space above. A generalized representation of the preliminary redevelopment footprint is depicted on Figure 3. 1.2 Site History Previous environmental site assessment activities have been conducted at the former Wix Filtration and former Henry Yarns properties by GTA and others. Currently, the former Wix Filtration property is regulated by NCDEQ Inactive Hazardous Sites Branch (IHSB) and Underground Storage Tank (UST) Section. The former Henry Yarns property is not currently regulated by NCDEQ or other regulatory agencies. GTA reviewed the following reports prepared by others for the former Wix Filtration property:  October 2012 – WSP Environment and Energy (WSP) Phase I Environmental Site Assessment (ESA) ‐ Wix Filtration Corporation ‐ Ozark Plant ‐ 1301 East Ozark Avenue Gastonia, North Carolina  November 2012 – WSP Phase II ESA ‐ Wix Filtration Corporation – Ozark Plant – Gastonia, North Carolina  February 2013 – WSP Notification of an Inactive Hazardous Substance or Waste Disposal Site  June 2020 – Harmon Environmental, PA ‐ Phase I ESA ‐ Former Wix Filtration Facility ‐ 1301 East Ozark Avenue Gastonia, North Carolina A summary of previous environmental assessment activities is provided below. WSP conducted a Phase I ESA of the former Wix Filtration property in October 2012, and indicated that the property was initially developed in the 1880s as a cotton mill to produce yarn and thread out of bailed cotton fiber. Operations included carding, combing, twisting, and NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 2 spinning cotton fibers. Wix Filtration purchased the site in the late 1930s and reportedly began automotive filter production operations from the basement of the of the cotton mill using cotton mill waste as filter media. Sometime in the 1950s Wix Filtration built a second structure and discontinued cotton mill operations to focus on automotive filter production. Two additional buildings were added in the 1960s and 1970s, and automotive filter production operations, including sheet metal cutting, stamping, brazing, polishing, paper cutting and pleating, testing, packaging, and shipping continued until December 2011. At the time of WSP’s Phase I ESA, the former Wix Filtration property was vacant and used for warehousing only. WSP identified the following RECs during their assessment activities:  Layer of ash or cinders present under basement floorboards of the “Old Building”.  Presence of abandoned two hydraulic lift shafts filled with sand and nearby approximate 100 square foot‐stained area.  Potential septic or cesspit based on historical industrial use. Additionally, WSP indicated that two 10,000‐gallon USTs located southwest side of the property between “Old Building” built in the 1880s and the “New Building” built in the 1950s were closed in place on July 31, 2000. The lack of additional information regarding the USTs was considered a historical REC. WSP conducted a Phase II ESA to evaluate the RECs identified above. The Phase II ESA included the collection of surface soil, subsurface soil, and groundwater samples for analysis. Based on the analytical data, WSP concluded that soil beneath the former Wix Filtration property was impacted with concentrations of polycyclic aromatic hydrocarbons (PAHs), metals, and tetrachloroethylene (PCE) that exceeded regulatory standards (Figure 4). Additionally, WSP concluded that shallow groundwater was not impacted with PAHs, metals, or volatile organic compounds (VOCs). Based on the findings of the November 2012 Phase II ESA, WSP sent a Notification of an Inactive Hazardous Substance or Waste Disposal Site to NCDEQ’s IHSB on behalf of Wix Filtration Corporation. The notification indicated that soil at the former Wix Filtration property was impacted with concentrations of PCE, PAHs, and metals that exceeded regulatory screening levels. No additional information regarding the regulatory status of the former Wix Filtration property was available. Between 2013 and 2014, a majority of the former Wix Filtration site buildings were demolished, leaving only concrete slabs, footings, and one approximate 7,500 square foot building, similar to existing site conditions. On June 11, 2020, Harmon Environmental conducted a Phase I ESA for the former Wix Filtration property and identified RECs similar to those noted in the WSP Phase I ESA (stained soil, historical detections of PAHs, PCE, and metals, and the presence of two closed in place 10,000‐gallon USTs). Harmon Environmental, PA does not appear to have conducted any additional environmental assessment activities at the former Wix Filtration property. On April 25, 2022, GTA conducted a Phase I ESA of the former Henry Yarns property at 1315 East NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 3 Ozark Avenue, which contained a warehouse building for a former yarn and dyeing facility. The site building was attached to the former Wix Filtration site until it was detached in the late 1930s. GTA indicated that the following RECs were associated with the former Henry Yarns property:  Long‐term use as a textile mill for yarn production and dyeing operations dating back to at least 1914.  Evidence of dye waste products discharge to an exterior separator pit and underground cistern.  A suspected UST located on the northeastern exterior of the subject property.  The lack of historical information prior to development with the current building by 1914.  A former railroad spur located on the subject property from prior to 1922 until at least 1970.  Impacted soil at the former Wix Filtration property located adjacently southwest to the former Henry Yarns property. On October 25, 2021, AAT, LLC applied to NCDEQ’s Brownfields Program as a prospective developer seeking a Brownfields Agreement (BFA) at the former Wix Filtration property located at 1301 East Ozark Avenue. On December 2, 2021, NCDEQ determined the property was eligible for entry into the Brownfields Program and for continued evaluation for a BFA. A Conceptual Site Plan provided by AAT, LLC dated October 13, 2022 indicated that potential site redevelopment plans included two mixed‐use buildings (Building A and Building B) to be constructed on the subject property. Conceptual uses for Building A included approximately 40,000 to 50,000 square feet of ground floor commercial, retail, and lobby space with approximately 260 micro apartment units constructed on floors 2 through 5. Conceptual uses for Building B included approximately 100,000 square feet of ground floor commercial self‐storage space with approximately 176 micro apartment units constructed on floors 2 though 5. On January 31, 2023, on behalf of AAT, LLC, Moore & VanAllen (MVA) submitted an amendment to the Brownfields Property Application (BPA) to include the adjoining parcel located at 1315 East Ozark and to enter the “Redevelopment Now” option. On April 4, 2023, NCDEQ determined that the project was eligible for entry into the Brownfields Program and for continued evaluation pursuant to a BFA. On May 2, 2023, AAT, LLC, MVA, and GTA met with NCDEQ to discuss the subject property background, historical environmental assessment and investigation information, and proposed path forward. NCDEQ requested a Data Gap Assessment Work Plan, a draft of which was submitted on July 6, 2023. Based on NCDEQ feedback, the sampling scope was revised and is described in the following sections. 1.3 Data Gaps Based on a review of the subject property background and historical environmental assessment and investigation activities, the following data gaps were identified by NCDEQ in the May 2,, 2023 meeting: NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 4 Former Wix Filtration Property  Insufficient soil and groundwater analytical data to define nature and extent contamination.  Potential risk for vapor intrusion has not been evaluated.  Two 10,000‐gallon USTs identified during previous assessment activities have not been located or evaluated. Former Henry Yarns Property  Multiple RECs identified in Phase I ESA have not been evaluated.  Absence of analytical data for soil and groundwater to define nature and extent of contamination (if present).  Potential risk for vapor intrusion has not been evaluated. NCDEQ requested the submittal of a work plan to address these data gaps for continued evaluation in the Brownfields Program. 2.0 SCOPE OF WORK Based on the site history and summary of potential data gaps presented above, GTA has prepared this Data Gap Assessment Work Plan in general accordance with NCDEQ Brownfields Redevelopment Sections Minimum Requirements Checklist for Site Assessment Work Plans and Reports dated March 2023. A detailed summary of the proposed scope of work is presented in the following sections. 2.1 Property Receptor Survey GTA will perform an NCDEQ Brownfields Property Receptor Survey, which will identify potentially sensitive property uses (schools, day care centers, hospitals, etc.) in the immediate vicinity (i.e., 1,000 feet) of the subject property and identify municipal and private water supply wells within one‐half mile of the subject property utilizing a database search and windshield survey of the area. GTA will also identify surface water bodies within one‐half mile of the subject property and will estimate the locations and depths of subsurface utilities in the vicinity of the subject property. GTA will complete the NCDEQ Brownfields Property Receptor Survey Form (attached) upon completion of the receptor survey. 2.2 Geophysical Survey As noted in the previous Phase I ESAs completed for both the former Wix Filtration and former Henry Yarns facilities, USTs are presumed to still be present at the site. GTA proposes to perform a geophysical survey in the reported locations of the USTs to identify and record their approximate location and dimensions. NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 5 The geophysical method used may include magnetics, electromagnetics (EM), and/or ground penetrating radar (GPR) depending on site conditions. It is presumed that the geophysical survey can be completed in one day. Geophysical survey findings are subject to the completeness and accuracy of information provided by others, limitations of the geophysical survey methods, and limitations due to site conditions, or a combination thereof. Limitations of the geophysical survey methods may include, but are not limited to, spacing of survey lines, data collected, assumptions, and ambiguities of interpretation. Limitations due to site conditions may include, but are not limited to, soil type and conductivity, utilities, power lines, dense vegetation, buildings, metal fences, vehicles, reinforced concrete, metal debris, and other obstructions or interference. The size, type (e.g., metal or fiberglass), and depth of the objects also affect detectability. Given these limitations, it is possible that underground tanks or other buried objects may exist on the property and are not apparent during the geophysical survey activities performed for this project. 2.3 UST Removal USTs identified during the geophysical survey will not be removed as part of this work plan. If UST removal activities are warranted, they would be managed during site redevelopment and construction activities under the BFA rather than traditional site closure through NCDEQ’s UST section. 2.4 Underground Utility Locating GTA proposes to perform an intrusive soil, groundwater, and soil vapor investigation to evaluate the surface and subsurface conditions on the subject property. Prior to performing intrusive activities, GTA will notify NC 811 to identify public underground utilities located in the proposed exploration areas. Additionally, a private utility locate service will be retained to identify utilities not covered by the public utility locate service. It is the responsibility of the property owner to identify any other utilities not marked by NC 811 or the private utility locator. GTA is not responsible for damage to any subsurface features not identified by NC 811, the private utility locator, or the property owner. 2.5 Media Sampling Based on the historical property uses, presence of impacted soil on the former Wix Filtration property, and lack of analytical data on the former Henry Yarns property, GTA proposes the collection of surface and subsurface soil, groundwater, and soil vapor samples as summarized below and in Table 1. Sampling efforts will focus on areas of historical usage with potential for impacts and areas located within the proposed redevelopment footprint that have not been adequately evaluated. Proposed media sampling locations are shown on Figure 5. NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 6 2.5.1 Soil GTA proposes to collect grab surface and subsurface soil samples from the locations described below and in Table 1. Surface Soil ID Depth Rationale GTA‐SS1 0.0‐2.0* Former Wix Filtration Property Historical PCE Detections in Soil GTA‐SS2 Former Wix Filtration Property Former USTs Historical PAHs/Metals Detections in Soil GTA‐SS3 Former Henry Yarns Property RECs Identified in Phase I ESA No Historical Soil Data GTA‐SS4 GTA‐SS5 Former Henry Yarns Property Basement Level Near Dye Tanks/Trench No Historical Data GTA‐SS6 GTA‐SS7 Former Henry Yarns Property RECs Identified in Phase I ESA No Historical Soil Data GTA‐SS8 Former Wix Filtration Property Historical PAHs/Metals Detections in Soil Subsurface Soil GTA‐SB1 Approximately 2 feet above groundwater or sample interval with highest PID reading. Former Wix Filtration Property Historical PCE Detections in Soil GTA‐SB2 Former Wix Filtration Property Former USTs Historical PAHs/Metals Detections in Soil GTA‐SB3 Former Henry Yarns Property RECs Identified in ESA No Historical Soil Data *Estimated depth of surface soil samples. Actual sample collection depths will vary. 2.5.2 Groundwater Historical data indicates that depth to groundwater ranges from approximately 25 to 35 feet below ground surface (bgs). Thus, GTA proposes to collect groundwater samples from three temporary monitoring point locations as summarized below and in Table 1. NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 7 ID Rationale GTA‐GW1 Former Wix Filtration Historical PCE Detections in Soil GTA‐GW2 Former Wix Filtration Property Former USTs Historical PAHs/Metals Detections in Soil GTA‐GW3 Former Henry Yarns Property RECs Identified in Phase I ESA No Historical Groundwater Data Depth to groundwater is estimated to be approximately 25‐35 feet bgs. Actual depth to groundwater will vary based on elevations observed during monitoring well installation and gauging. 2.5.3 Soil Vapor To evaluate the potential risk for vapor intrusion near the proposed building footprint, GTA proposes to collect sub slab vapor samples in areas with existing slabs that overlap the footprint, and exterior soil vapor samples from locations that do not contain existing slabs as summarized below and in Table 1. ID Rationale Depth GTA‐SV1 Former Wix Filtration Property No Historical Soil Vapor Assessment Existing Slab in Good Condition Adjacent to Proposed Building A Footprint Sub slab* GTA‐SV2 PCE Detected in Soil No Existing Slab Within Proposed Building A Footprint 10‐15 feet GTA‐SV3 Former Heating Oil USTs No Existing Slab Within Proposed Building A Footprint GTA‐SV4 No Existing Slab Within Proposed Building A Footprint GTA‐SV5 Former Henry Yarns Property No Historical Soil Vapor Assessment RECs identified in Phase I ESA Existing Basement Level Slab Within Proposed Building B Footprint Sub slab GTA‐SV6 GTA‐SV7 GTA‐SV8 GTA‐SV9 GTA‐SV10 *Sub slab soil vapor sample depth will vary based on slab thickness. Exterior soil vapor sample depth will vary based on lithology and depth to groundwater. NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 8 3.0 SAMPLING METHODOLOGY 3.1 Soil Sampling Collection of surface and subsurface soil samples will be conducted in general accordance with NCDEQ Inactive Hazardous Sites Branch (IHSB) Guidelines for Assessment and Cleanup of Contaminated Sites dated September 2022, which includes guidance for soil remediation goals, naturally occurring background levels, sampling techniques, and quality assurance. Analytical data for surface and subsurface soil samples will be compared to NCDEQ’s residential health‐ based Preliminary Soil Remediation Goals (PSRGs) dated January 2023. 3.1.1 Surface Soil Grab surface soil samples will be collected from approximately 0.0‐2.0 feet bgs using a decontaminated stainless steel hand auger (Figure 5) and transferred into laboratory provided sample containers, transferred to a chilled cooler with ice and forwarded to a North Carolina certified analytical laboratory under chain of custody protocol for VOCs, semi‐VOCs (SVOCs), and metals analysis (Table 1). 3.1.2 Subsurface Soil Subsurface soil samples will be collected from borings advanced by hollow stem auger (HSA) and split spoon standard penetration test (SPT) soil sampling methods. Each boring will be advanced to approximately 30‐40 feet bgs HSA refusal, whichever occurs first, and are anticipated to intersect the groundwater table (Figure 5). During advancement of the borings, split spoon SPT soil samples will be collected and depth to groundwater at time of drilling will be noted. A portion of each soil core will be placed in a sealed plastic bag and field screened for the presence of volatile organic vapors using a photo ionization detector (PID). Subsurface soil samples will be collected from the depth exhibiting the highest PID screening levels or approximately 2 feet above the soil/groundwater interface, whichever is encountered. Samples will be packaged in laboratory provided bottleware and transferred to a chilled cooler with ice for transport to a North Carolina certified analytical laboratory under chain of custody procedures for analysis as described in Table 1. 3.2 Groundwater Sampling Collection of groundwater will be conducted in general accordance with NCDEQ IHSB Guidelines for Assessment and Cleanup of Contaminated Sites dated September 2022. Installation of temporary groundwater monitoring points will be conducted in general accordance with NCDEQ 15A NCAC 02C‐Well Construction Standards (September 2019) by a North Carolina licensed well contractor. Analytical groundwater data will be compared to the NCDEQ 15A NCAC 02L.0202 (2L) groundwater quality standards (April 2022). NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 9 Temporary monitoring points will be installed in the shallow aquifer zone above bedrock using hollow stem auger (HSA) drilling techniques. Each boring will be advanced to approximately 30 to 40 feet bgs or HSA refusal to intersect the groundwater table. Once the borehole has been advanced to terminal depth, temporary points will be constructed through the augers using 1‐ inch polyvinyl chloride (PVC) well casing fitted with a 5‐ or 10‐foot section of machine slotted 1‐ inch SCH 40 PVC well screen. After approximately 24 hours of equilibration, GTA will measure and record the depth to groundwater in each monitoring well. After depth to groundwater data has been collected, GTA will purge each monitoring well and collect field parameter measurements (pH, specific conductivity, temperature, and turbidity) at regular intervals. Purging will be considered complete when field parameters are generally stable and/or a minimum of three casing volumes have been evacuated from the well. GTA will then collect groundwater samples from the temporary monitoring wells using a peristaltic pump and dedicated polyethylene tubing lowered the midpoint of the screened interval. Samples will be collected in laboratory provided bottleware and transferred to a chilled cooler with ice for transport to a North Carolina certified analytical laboratory under chain of custody procedures for analysis as described in Table 1. The groundwater gauging data, combined with a relative top‐of‐boring/ground surface survey, will be used to estimate groundwater flow direction. Relative elevations at each temporary groundwater monitoring point will be surveyed by GTA personnel, with an estimated accuracy of ±0.01 foot. Elevations will be measured relative to the transit elevation at the initial set point, with an assumed elevation of 100.00 feet. Using the initial set point elevation and survey measurements at each temporary groundwater monitoring point, elevations can be calculated for each monitoring point such that a groundwater flow direction can be estimated. Each temporary monitoring point will be abandoned in accordance with NCDEQ 15A NCAC 02C‐ Well Construction Standards (September 2019). 3.3 Soil Vapor Sampling Soil vapor sampling methodology will conform with the NCDEQ Division of Waste Management (DWM) Vapor Intrusion Guidance dated March 2018, which includes the NCDEQ Risk Calculator utilizing the carcinogenic risk threshold of E‐06 and non‐carcinogenic hazard index of 0.2. Residential screening levels will be used for comparison with the laboratory results. Temporary sub slab vapor sample points will be constructed using VaporPin® sample points installed through 5/8” holes drilled in the concrete slab, extending approximately 2 inches into the underlying substrate. The VaporPin® sampling point will provide an air‐tight seal through the existing concrete slab. The slab thickness and any soil encountered during installation will be recorded at each sampling location, and each sub slab vapor sample location will be allowed to equilibrate for a minimum of 20 minutes before sample collection. Exterior soil vapor probes will be installed using the following methodology: NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 10  Advance boreholes approximately to 10‐15 feet bgs. Depths may vary based on groundwater elevations observed during subsurface soil sample collection and temporary groundwater monitoring point installation.  Place one foot of clean, washed silica filter sand into the bottom of the boring.  Insert a length of ¼‐inch OD Nylaflow‐T tubing with a stainless‐steel screened implant to the top of the silica filter sand.  Place clean, washed silica filter sand in the annular space to approximately 1 foot above the stainless‐steel screened implant.  Place two feet of granular sodium bentonite atop the sand and backfill the remainder of the borehole with hydrated sodium bentonite chips.  Allow soil vapor probes to equilibrate for a minimum of 24 hours to allow an effective seal and to account for potential off gassing of sampling point materials. After equilibration, the points will be purged using either a peristaltic pump or hand pump attached to the outflow tubing with a check valve for approximately 2 minutes (at least three volumes of the air contained in the sample tubing). The equipment will be tested for leaks by enclosing the entire sample train within a helium‐filled shroud and analyzing the soil vapor extracted through the sampling equipment for helium using a hand‐held helium meter. A shroud will be placed over the sampling train and helium meter connected to the outflow end of the shroud sample tubing for use as an access port to measure helium content within the sample train for comparison to helium content within the shroud. Helium concentrations of greater than 10% of the concentration within the shroud will be considered a leak in the sample train and will be evaluated and corrected. Once the leak test is complete, an individually certified clean 1‐liter Summa canister, equipped with a regulator to maintain a flow rate below 200 ml/min, will be connected and activated. The pressure gauge for the canister will be read immediately following connection and recorded on the chain of custody document. Canisters will be checked for appropriate flow rate to prevent canister near‐equilibration with ambient air pressure. The canister will be disconnected after 10 minutes or when the canister vacuum decreases to approximately five inches of mercury, whichever comes first. The final canister vacuum will be recorded in the laboratory report and chain of custody documents. At the conclusion of the sample period, the canisters will be sealed and removed, and packaged for transport to an accredited analytical laboratory within 48 hours of collection for analysis as described in Table 1. The VaporPins® and exterior soil vapor probes will be left in place until GTA and NCDEQ agree that additional sample collection will not be needed. 4.0 LABORATORY ANALYSIS Surface soil, subsurface soil, and groundwater samples will be submitted for laboratory analysis based on field observations, PID screening results, and groundwater elevations observed at the time of drilling. Soil vapor samples will be collected for laboratory analysis based on predetermined sample locations within the proposed redevelopment building footprints and NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 11 groundwater elevation data. A summary of the analytical program is summarized below and in Table 1. ID Media Rationale Analysis (USEPA Method) GTA‐SS1 Surface Soil Former Wix Filtration Property Historical PCE Detections in Soil VOCs (8260) SVOCs (8270) RCRA 8 metals (6020) GTA‐SS2 Former Wix Filtration Property Former USTs Historical PAHs/Metals Detections in Soil GTA‐SS3 Former Henry Yarns Property RECs Identified in Phase I ESA No Historical Soil Data GTA‐SS4 GTA‐SS5 Former Henry Yarns Property Basement Level Near Dye Tanks No Historical Soil Data GTA‐SS6 GTA‐SS7 Former Henry Yarns Property RECs Identified in Phase I ESA No Historical Soil Data GTA‐SS8 Former Wix Filtration Property Historical PAHs Detections GTA‐SB1 Subsurface Soil Former Wix Filtration Property Historical PCE Detections in Soil GTA‐SB2 Former Wix Filtration Property Former USTs Historical PAHs/Metals Detections in Soil GTS‐SB3 Former Henry Yarns Property RECs Identified in Phase I ESA No Historical Soil Data GTA‐GW1 Groundwater Former Wix Filtration Property Historical PCE Detections in Soil GTA‐GW2 Former Wix Filtration Property Former USTs Historical PAHs/Metals Detections in Soil GTA‐GW3 Former Henry Yarns Property RECs Identified in Phase I ESA No Historical Groundwater Data NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 12 All reusable downhole sampling equipment will be thoroughly decontaminated by rinsing with tap water and scrubbing with a brush approved soap solution, followed by rinsing with distilled/de‐ionized water. GTA will provide the analytical laboratory with the information contained in Table 1 to ensure the correct bottleware is used and sufficient sample volumes are collected to perform the requested analyses and QA/QC procedures for each media. Generally, surface and subsurface soil require two 4‐ounce glass jars for SVOCs and metals analysis, and the pre‐set volumes for Terracore (VOC) sampling. Groundwater analysis generally requires two unpreserved 1‐liter amber glass bottles for SVOCs and metals analysis, and three 40‐milliliter glass VOA vials preserved with hydrochloric acid (HCL) for VOCs analysis. All soil and groundwater samples will be collected using laboratory provided bottleware and place immediately in a chilled cooler with ice for transport to a North Carolina certified analytical laboratory under chain of custody procedures. A trip blank will be placed in each cooler containing samples to be analyzed for VOCs. A temperature blank will be placed in each sample cooler submitted to the analytical laboratory. Soil vapor canisters will be packaged and shipped separate from the soil and groundwater samples and will not require preservation with ice. Soil vapor samples will be shipped to an accredited analytical laboratory within 48 hours of collection under chain of custody procedures. Final vacuum readings will be recorded by the analytical laboratory upon receipt and provided on the analytical data sheets. A duplicate sample will be collected from location GTA‐SV5 by installing a “T” manifold to fill two summa canisters simultaneously from the same point. ID Media Rationale Analysis (USEPA Method) GTA‐SV1 Soil Vapor Former Wix Filtration Property Existing Slab in Good Condition No Historical Soil Vapor Data VOC (TO15) excluding acrolein GTA‐SV2 Former Wix Filtration Property No Existing Slab PCE Detections in Soil GTA‐SV3 Former Wix Filtration Property Within Proposed Building A Footprint GTA‐SV4 Former Wix Filtration Property Within Proposed Building A Footprint GTA‐SV5 Former Henry Yarns Property Existing Basement Level Slab Within Proposed Building B Footprint GTA‐SV6 GTA‐SV7 GTA‐SV8 GTA‐SV9 GTA‐SV10 NCDEQ 25031‐21‐036 Wix Filtration II August 15, 2023 GTA Project No. 31211876 13 5.0 QA/QC PROCEDURES For soil and groundwater data quality assurance/quality control (QA/QC), GTA will collect one duplicate and one matrix spike/matrix spike duplicate (MS/MSD) sample for laboratory analysis. For soil vapor QA/QC, GTA will collect one duplicate sample for laboratory analysis. Laboratory analytical results that fall between the practical quantitation limit of the laboratory equipment and the method reporting limit will be reported as a “J flag” result. GTA will request Level II QA/QC including J flags on the chain of custody documentation. Sample locations chosen for duplicate and MS/MSD collection may be changed based on field observations and are subject to change at the discretion of GTA. QA/QC samples will be collected and analyzed in accordance with NCDEQ guidance which suggests that one duplicate and one MS/MSD will be collected for every 20 samples per media per analytical method. Thus, GTA will collect and submit one duplicate and one MS/MSD for each of the proposed media to be sampled (Table 1) for laboratory analysis. To evaluate the presence of contamination resulting from field or laboratory activities, trip blanks will be included with coolers that contain soil or groundwater samples for VOCs analysis. All trip blanks will be analyzed for VOCs only. 6.0 INVESTIGATION DERIVED WASTE Purge water from groundwater sampling activities will be placed on the ground surface adjacent to the temporary monitoring well. Upon completion, soil borings located on the former Wix Filtration property will be backfilled with drilling cuttings and bentonite. Soil cuttings from borings located on the former Henry Yarns will be placed in 55‐gallon steel drums and staged until analytical data for soil is available for disposal options. Borings located on the former Henry Yarns property will be backfilled with bentonite. Piping from temporary groundwater monitoring points and tubing from soil vapor sampling will be removed and disposed as solid waste. 7.0 REPORTING GTA will prepare a Brownfield Assessment Report summarizing the sampling activities, analysis results, conclusions, and recommendations. The report and attachments will include a description of sampling activities, comparison of the data to regulatory screening levels or risk thresholds, a figure depicting sampling locations, tabulated data, laboratory reports, soil boring logs, a photographic log, and signature by a North Carolina‐licensed Professional Engineer or Professional Geologist. Risk calculations will be based on maximum concentrations for all media data. The report will conform with the NCDEQ’s Brownfields checklists for Environmental Site Assessment Work Plans/Reports and Vapor Intrusion Assessment Work Plans/Reports, and will contain boring logs, temporary well construction details, sub slab and soil vapor point construction information, field documentation of helium leak detection testing, and photographs of the field activities. Figures Base map sourced from Google Maps (©2023) GTA ASSOCIATES, INC. 710 PENINSULA LANE, SUITE B CHARLOTTE, NORTH CAROLINA 28273 (704) 553 - 2300 www.gtaeng.com © Geo-Technology Associates, Inc. 300 6000Notes Approximate Scale 1 inch = 600 feet WIX FILTRATION II BROWNFIELD SITE LOCATION MAP Approximate Subject Property Boundary Notes GTA ASSOCIATES, INC. 710 PENINSULA LANE, SUITE B CHARLOTTE, NORTH CAROLINA 28273 (704) 553 - 2300 www.gtaeng.com © Geo-Technology Associates, Inc. 150 3000 Approximate Scale 1 inch = 300 feet WIX FILTRATION II BROWNFIELD 2023 AERIAL PHOTOGRAPH Approximate Subject Property Boundary 1.Base image obtained from GoogleEarth (©2023) Notes GTA ASSOCIATES, INC. 710 PENINSULA LANE, SUITE B CHARLOTTE, NORTH CAROLINA 28273 (704) 553 - 2300 www.gtaeng.com © Geo-Technology Associates, Inc. 75 1500 Approximate Scale 1 inch = 150 feet WIX FILTRATION II BROWNFIELD PRELIMINARY REDEVELOPMENT PLAN Approximate Subject Property Boundary 1.Base image obtained from GoogleEarth (©2023) Proposed Building Footprints Notes GTA ASSOCIATES, INC. 710 PENINSULA LANE, SUITE B CHARLOTTE, NORTH CAROLINA 28273 (704) 553 - 2300 www.gtaeng.com © Geo-Technology Associates, Inc. WIX FILTRATION II BROWNFIELD HISTORIC SAMPLE LOCATIONS Approximate Subject Property Boundary 1.Base image obtained from GoogleEarth (©2023) MW-5/SB-7 Groundwater (ug/L) Toluene 1.1 Barium 82.4 Soil (mg/kg) PCE 9.4 Arsenic 3.5 Barium 54.3 Cadmium 3.7 Chromium 20.9 Lead 16.7 Selenium 1.4 MW-1/SB-1 Groundwater (ug/L) Barium 113 Cadmium 1.4 Soil (mg/kg) Arsenic 3.5 Barium 166 Cadmium 1.1 Chromium 7.1 Lead 17.3 MW-2 Groundwater (ug/L) Barium 82.4 150 3000 Approximate Scale 1 inch = 300 feet MW-3/SB-5 Groundwater (ug/L) Barium 225 Soil (mg/kg) Arsenic 3.3 Barium 65.6 Cadmium 0.1 Chromium 1.8 Lead 6.7 SS-1 Surface Soil (ug/kg) Acenaphtylene 1,800 Anthracene 2,670 Benzo(a)anthracene11,900 Benzo(a)pyrene 9,520 Benzo(b)fluoranthene7,100 Benzo(g,h,i)perylene5,240 Benzo(k)fluoranthene8,810 Indeno(1,2,3-cd)pyrene 4,680 Chrysene 10,600 Dibenz(a,h)anthracene1,640 Fluoranthene 24,300 Fluorene 602 Phenanthrene 9,780 Pyrene 19,900 Naphthalene 15.2 Surface Soil (mg/kg) Arsenic 3.8 Barium 109 Cadmium 0.51 Chromium 11.5 Lead 11.6 Selenium 3.5 LEGEND 1.ug/L Micrograms per liter 2.mg/kg Milligrams per kilogram 3.PCE Tetrachloroethene GTA ASSOCIATES, INC.710 PENINSULA LANE, SUITE BCHARLOTTE, NORTH CAROLINA 28273(704) 553 - 2300www.gtaeng.com© Geo-Technology Associates, Inc.40800Approximate Scale1 inch = 80 feetWIX FILTRATION II BROWNFIELDPROPOSED SAMPLING LOCATIONSGTA-GT2GTA-GT8GTA-GT7GTA-SV2GTA-GT1GTA-SS1GTA-SB1GTA-GW1GTA-GT3GTA-SV3GTA-GT4GTA-SV4GTA-GT6GTA-SS8GTA-GT5GTA-SS2GTA-SB2GTA-GW2GTA-SS5GTA-SS6GTA-GT9GTA-SS7GTA-SB3GTA-GW3GTA-SV1GTA-SV5GTA-SV10GTA-SV7GTA-SV6GTA-SV8GTA-SV9NotesLegendProposed Boring LocationsProposed Sub-slab Vapor LocationsGTA-GT1 Geotechnical Soil BoringGTA-GW1Temporary Groundwater Sampling PointGTA-SS1 Surface Soil Sampling LocationGTA-SB1Subsurface Soil Sample Location1.Base image obtained from GoogleEarth (©2023)GTA-SS4GTA-SS3GTA-SV1Sub Slab/Soil Vapor Sample Point Tables Table 1 Brownfield Sampling Matrix Wix Filtration II Gastonia, NC GTA Project No. 31211876 Page 1 of 1 Field Screen PID RCRA Metals VOCs SVOCs VOCs 6020/7199*** 8260B 8270 TO15 GTA‐SS1  GTA‐SS2  GTA‐SS3  GTA‐SS4  GTA‐SS5  GTA‐SS6  GTA‐SS7  GTA‐SS8  GTA‐SB1  GTA‐SB2  GTA‐SB3  GTA‐SB3‐DUP  GTA‐SB3‐MS/MSD  GTA‐GW1  GTA‐GW2  GTA‐GW3  GTA‐GW3‐DUP  GTA‐GW3‐MS/MSD  Trip Blank NA  GTA‐SV‐1 Existing Slab in Good Condition (vapor pin)  GTA‐SV‐2 No Existing Slab (soil vapor) PCE Detected in Soil Within Proposed A Building Footprint  GTA‐SV3 Former Heating Oil USTs No Existing Slab (vapor pin) Within Proposed A Building Footprint  GTA‐SV4 No Existing Slab (soil vapor) Within Proposed A Building Footprint  GTA‐SV5  GTA‐SV6  GTA‐SV7  GTA‐SV8  GTA‐SV9  GTA‐SV10  GTA‐SV5‐DUP  Notes: * = Estimated depth of subsurface soil. Actual sample collection depths will vary based on field screening and groundwater elevations observed during borehole advancment. ** = Subslab soil vapor sample depth will vary based on slab thickness. Soil vapor sample depth will vary based on lithology and depth to groundwater. ***= Hexavalent Chromum analysis by USEPA Method 7199 PAHs = Polycyclic aromatic hydrocarbons SVOCs = Semi‐volatile organic compounds USEPA = United States Environmental Protection Agency USTs = Underground storage tanks ESA = Environmental Site Assessment RECs = Recognized environmental conditions VOCs = Volatile organic compounds PCE = Tetrachloroethene MS/MSD = Matrix spike/matrix spike duplicate DUP = Duplicate sample Soil Soil Vapor Depth (feet)Sample ID Groundwater Media Rationale Quality Control Varies** Former Wix Filtration Property Historical PAHs/Metals Detections in Soil Former Wix Filtration Property Historical PCE Detections Former Wix Filtration Property Former USTs Historical PAHs/Metals Detections Former Wix Filtration Property (No Historical Soil Vapor Assessment) Former Henry Yarns Property (No Historical Soil Vapor Assessment) RECs identified in Phase I ESA Existing Basement Level Slab Within Proposed BuildingB Footprint Former Henry Yarns Property RECs Identified in the Phase I ESA No Historial Soil Data Analysis/USEPA Method Former Wix Filtration Property Historical PCE Detections in Soil Former Wix Filtration Property Former USTs Historical PAHs/Metals Detections in Soil Former Wix Filtration Property Former USTs Historical PAHs/Metals Detections in Soil Varies Quality Control Quality Control Former Wix Filtration Property Historical PCE Detections in Soil Former Henry Yarns Property RECs Identified in Phase I ESA No Historical Groundwater Data 0.0‐2.0 feet Approximately 2 feet above groundwater or highest PID reading. Former Henry Yarns Property RECs Identified in ESA No Historical Soil Data Former Henry Yarns Property RECs Identified in Phase I ESA No Historical Soil Data Former Henry Yarns Property Basement Level Near Dye Tanks No Historical Soil Data AƩachments 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. 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 builidng 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 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Redevelopment Section 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). Site: Address: City: County: Brownfields Project Number: Date Property and Building Characteristics Current Usage Proposed UsageSurface Conditions % of property that is grassed areas % of property that is agricultural crops % of property that is paved NASize of Property (acres) % of property that is wooded/brush 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?). Rev. 01/2023 Page 1 of 3 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Redevelopment Section Surrounding Property Land Use North South East West Utilities Is there a septic system on-site? (Y or N) _________ Please provide the utility providers for the subject property a. Natural Gas ___________________________ b. Sewer ___________________________ c. Electricity ___________________________ d. Other __________________________ For surrounding properties, please complete the following table with available information. Is there a basement within 1,000 ft of the Property Is there a residence within 1,000 ft of the Property? Utility/Potential Receptor Is a buried electrical cable main within 100 ft of Property boundary? Is a storm water pipe within 100 ft of the Property boundary? Is a sanitary sewer within 100 ft of the Property boundary? * If yes, please provide a map or detailed information (distance, direction, depth) of the utility in correlation with the subject property. Is a water line main within 100 ft of Property boundary? Is a natural gas line main within 100 ft of the Property boundary? Is a buried telephone/ cable main within 100 ft of the Property boundary? Is a septic system leach field within 500 ft of the Property boundary? Direction For the subject property, please provide a map of known buried utilites. If available, include depth to top, construction material, and diameter of the utilities. In addition, please provide the following information on utilty providers. If additional assessment is required, the public utility locators should be contacted. This information can then be added to a site map. Y/N * Is a school or daycare center within 1,000 ft of the P? Specific Land Uses of Interest Y/N * * If numerous facilities of interest are present, their locations can be placed on a map in lieu of providing specific addresses. Distance (ft) DirectionDistance (ft)Address 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. Zoning/Land Use Proposed Usage Current Use/Occupant Rev. 01/2023 Page 2 of 3 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Redevelopment Section Water Supply What is the potable water supply for the property? Public ______ Private ______ Surface Water & Wetlands 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? Is a public water supply well within 1 mile of the Property boundary? Is a private water supply well within 1,500 ft of the Property bd?Is an irrigation well within 1,500 ft of the Property boundary? Response/Comments 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. 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. The purpose of this section is to provide information on the water supply for the site and surrounding areas. a. Is the water body naturally developed or man-made? Y/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. If needed, please attach a separate table to list all wells. Please note, the PM may opt for a more extensive water supply well survey if needed. Are there surface water features on the property? (If yes, please complete a. to d.) Provide Information regarding Surface Water and Wetlands Distance (ft)Direction Address Rev. 01/2023 Page 3 of 3 08/16/2023