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HomeMy WebLinkAbout24059_BlandStreet_ESA Work Plan Approval Package_20210629 June 29, 2021 Sent Via E-mail John McColl Cousins 200 East Bland LP 3344 Peachtree Road NE, Suite 1800 Atlanta, Georgia 30326 jmccoll@cousins.com Subject: Environmental Site Assessment Work Plan Approval Bland Street Assemblage 200 & 205 East Bland Street; 1401 & 1435 South Tryon Street Charlotte, Mecklenburg County Brownfields Project Number 24059-20-060 Dear Mr. McColl: The North Carolina Department of Environmental Quality (DEQ) Brownfields Program received and reviewed the June 25, 2021 Environmental Site Assessment Work Plan submitted by NOVA Engineering & Environmental, Inc., for the above referenced Brownfields Project. Based on our review, the Environmental Site Assessment Work Plan is approved. Be advised that this approval from the Brownfields Program does not waive any applicable requirement to obtain any necessary permits, licenses, or certifications for the above referenced activities nor does it waive any requirement to comply with applicable law for such activities. If you have any questions, please feel free to contact me via e-mail at peter.doorn@ncdenr.gov. Sincerely, Peter L. Doorn Brownfields Project Manager ec: Keith Rice, NOVA Engineering and Environmental, Inc. Steven Aldis, NOVA Engineering and Environmental, Inc. Douglas A. Henderson, King & Spalding LLP Tracy Wahl, DEQ P R O F E S S I O N A L | P R A C T I C A L | P R O V E N 714 Minuet Lane, Suite D, Charlotte, North Carolina 28273 NOVA North Carolina License No: C-2807 t. 980.321.4100 / f. 980.321.4099 / usanova.com June 25, 2021 NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WASTE MANAGEMENT - BROWNFIELDS PROGRAM Mail Services Center 1646 Raleigh, North Carolina 27699-1646 Attention: Mr. Pete Doorn Project Manager, DWM Brownfields Program Subject: Environmental Site Assessment Work Plan BLAND STREET ASSEMBLAGE SITE Charlotte, North Carolina NOVA Project Number 3021016 Dear Mr. Doorn: NOVA Engineering and Environmental, Inc. (NOVA) has completed the Environmental Site Assessment Work Plan (Work Plan) for the Bland Street Assemblage Site Brownfield Property located in Charlotte, Mecklenburg County, North Carolina. This Work Plan was developed using the Environmental Site Assessment Work Plan Minimum Requirements Checklist from the North Carolina Department of Environmental Quality (NCDEQ) Brownfields Program dated November 2018. This Work Plan presents our understanding of the project information, a description of the environmental services proposed by NOVA, and our understanding of directives from NCDEQ. If you have any questions, or if we may be of further assistance, please do not hesitate to contact us. Sincerely, NOVA Engineering and Environmental, Inc. Steven M Aldis, RSM, PG Keith Rice Project Manager Senior Geologist TABLE OF CONTENTS 1.0 INTRODUCTION ................................................................................................................... 1 1.1 SITE AND PROJECT INFORMATION .............................................................................................. 1 1.2 HISTORICAL SUMMARY OF SITE ACTIVITIES................................................................................ 1 1.3 DATA GAPS .................................................................................................................................... 5 2.0 SCOPE OF WORK ................................................................................................................ 6 2.1 SOIL SAMPLING ............................................................................................................................ 6 2.2 GROUNDWATER SAMPLING ......................................................................................................... 7 2.3 SOIL GAS AND SUB-SLAB SAMPLING .......................................................................................... 7 3.0 SAMPLING METHODOLOGY ............................................................................................... 9 3.1 SOIL SAMPLING ............................................................................................................................ 9 3.2 GROUNDWATER SAMPLING ...................................................................................................... 10 3.3 SOIL GAS AND SUB-SLAB SOIL VAPOR SAMPLING .................................................................. 10 4.0 LABORATORY ANALYSIS .................................................................................................. 12 4.1 SOIL ANALYSIS........................................................................................................................... 12 4.2 GROUNDWATER ANALYSIS ....................................................................................................... 12 4.3 SOIL GAS AND SUB-SLAB ANALYSIS ......................................................................................... 12 5.0 QUALITY ASURANCE / QUALITY CONTROL ...................................................................... 13 6.0 INVESTIGATION DERIVED WASTE (IDW) MANAGEMENT ............................................... 14 7.0 RECEPTOR SURVEY .......................................................................................................... 15 8.0 REPORTING....................................................................................................................... 16 ATTACHMENTS FIGURE 1 – SITE LOCATION MAP FIGURE 2 – SITE MAP NC BROWNFIELDS RECEPTOR SURVEY FORM Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 1 1.0 INTRODUCTION NOVA Engineering and Environmental, Inc. (NOVA) was retained by Cousins 200 East Bland Street, LP (Client) to complete an Environmental Site Assessment Work Plan (Work Plan) on the Bland Street Assemblage Site located in Charlotte, Mecklenburg County, North Carolina (Subject Property). A site location map is included as Figure 1 in the Attachments. 1.1 SITE AND PROJECT INFORMATION The Subject Property is located at 200/205 Bland Street and 1401/1435 South Tryon Street in Charlotte, Mecklenburg County, North Carolina. According to the Mecklenburg County Geographic Information System (GIS) database, the Subject Property measures approximately 3.36-acres and currently contains three (3) parcels (Parcel IDs 12304127 (200 E Bland Street), 12304101 (1401 S Tryon Street), and 12303303 (205 E Bland Street)). Note that former parcel ID 12304128 (1435 S Tryon Street) has been combined with parcel ID 12304127 (200 E Bland Street). The Subject Property is bordered by South Tryon Street on the northwest, East Bland Street to the northeast of three (3) of the parcels and southwest of the fourth, the Charlotte Light Rail South Line to the southeast and South College Street transects a portion of the site. A Site Map including an aerial photograph is included as Figures 2 in the Attachments. The Subject Property is currently developed with a one (1) story brick structure (circa 1920) and three (3) active paid parking lots. The brick structure located in the central portion of the Subject Property (200 East Bland Street) encompasses approximately 31,100 square feet of finished area. 1.2 HISTORICAL SUMMARY OF SITE ACTIVITIES The Subject Property is located on the southwest side of Charlotte, North Carolina. The area was historically agricultural and residential prior to converting to a commercial and industrial area. NOVA has reviewed readily available historical documents which indicate that the Subject Property was first developed with residential properties and a lumber yard with a gasoline tank on a concrete pad in the 1911 Sanborn map. Prior to the residential properties, the Subject Property was primarily vacant in the 1900 and 1905 Sanborn maps. As of 1951, the lumberyard and building supplies warehouse appear to have been replaced by a sash and door warehouse (Kuttig Sash and Door Company) with an apparent rail side. A warehouse was added east of the rail side. In 1953, fewer residences were observed and the window, sash and door manufacturer has become a bedding and flooring warehouse (unnamed). As of 1969, no residential buildings were located at the Subject Property. Hart & Hickman, PC (H&H), Phase I Environmental Site Assessment (ESA) Report, Commercial Properties, 200/201 East Bland Street and 1401/1435 South Tryon Street, Charlotte North Carolina, dated June 26, 2015 – The Phase I ESA indicated that Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 2 the Subject Property encompassed four (4) parcels of land totaling approximately 3.36 acres that was occupied by Greek Isles Restaurant, All American Pub, Oak Room bar, and Slate Billiards at the time of the site reconnaissance. H&H identified three (3) on- site and one (1) off-site potential environmental concerns. A former gasoline tank was depicted in the southeast corner of the building located at 200 East Bland Street during review of the 1929 through 1969 Sanborn maps. H&H believed that the tank was above ground and located on a concrete platform; however, the identified gasoline tank was not considered to be a REC. The fuel and ice company located in the eastern portion (201 East Bland Street) of the Subject Property was depicted on Sanborn Maps from 1929 through 1953. No petroleum ASTs or USTs were identified during review of historical sources; however, stockpiles of coal were observed in the southeastern portion of the site. H&H believed that the lot was used primarily for storage trucks for fuel oil/coal delivery and for ice making purposes. H&H considered the potential for the historic use of the site as a fuel and ice company to impact the Subject Property to be low. The warehouse building located at 200 East Bland Street was depicted as lumber storage, woodworking and retail sales of building supplies from 1911 through 1962 as no indications of lumber treatment or finishing were identified. No former automotive service operations were identified in connection to the used car sales lot located in the northern portion along South Tryon Street. These former site operations were not considered to be RECs by H&H. An off-site dry cleaning facility was identified at 1414 South Tryon Street and was listing in the city directories as dry cleaning facility from 1949 to at least 1969 as Sanborn maps during these years verified that dry cleaning operations were conducted on-site. “Due to the lack of reported releases, H&H considered the potential for this facility to impact the Subject Property to be low. No recognized environmental conditions were reported in the Phase I ESA conducted by H&H. NOVA Engineering & Environmental, Inc., Phase I Environmental Site Assessment (ESA) Report, Bland Street Assemblage, Charlotte North Carolina, dated October 9, 2020 – NOVA identified the following off-site issue resulting in Recognized Environmental Conditions (RECs) in connection with the Subject Property: • The American Dry-Cleaning Company, formerly located on the north adjoining property at 1406 South Tryon Street, is identified in the EDR report as a historical dry-cleaning facility. Additionally, NOVA identified the following off-site issues resulting in Controlled Recognized Environmental Conditions (CRECs) in connection with the Subject Property: • The Wright Cleaning Company/HD Supply Brownfields site located adjoining to the north of the Subject Property. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 3 • Charlotte Coal Gas Plant No. 2/ Duke Power-South Blvd/South Blvd. MGP Site located adjoining to the south of the Subject Property. • The Hughes Supply store #3820/Wionna Street Drum Site/HD Supply Power Solutions facility, formerly located on the north adjoining property at 1414 South Tryon Street and 118 Winona Street, is identified in the EDR report as a RCRA-Very Small Quantity Generator (VSQG), NonGen/NLR and Superfund Enterprise Management System (SEMS) facility. NOVA Engineering & Environmental, Inc., Limited Phase II Environmental Site Assessment (ESA) Report, Bland Street Assemblage, Charlotte North Carolina, dated October 8, 2020 – NOVA Engineering & Environmental, Inc. performed a Limited Phase II ESA for the Bland Street Assemblage Site. The following is a summary of the findings of NOVA’s Limited Phase II ESA: VOC CONSTITUENTS IN SOIL The VOC constituents detected in soil were at concentrations below NC DEQ Preliminary Soil Remediation Goals (PSRGs). SVOC CONSTITUENTS IN SOIL The SVOC constituents detected in soil were at concentrations below NC DEQ PSRGs. METALS CONSTITUENTS IN SOIL Arsenic was detected in the six (6) soil samples collected on the Subject Property (N-1 through N-6) at concentrations above the NC DEQ residential PSRG of 0.68 mg/kg with two (2) above the NC DEQ industrial/commercial PSRG of 3.0 mg/kg. However, the detected concentrations of Arsenic are below the mean concentration reported to be naturally occurring in the eastern conterminous United States based on the observed background concentrations in Element Concentrations in Soils and Other Surface Materials of the Conterminous United States, Hansford T. Shacklette and Josephine G. Boerngen, United States Geological Survey, 1984. Boron was detected in soil samples N-1-20’, N-2-18’, N-3-12’, N-4-4’ and N-6-5’ at concentrations above the NC DEQ protection of groundwater PSRG of 45 mg/kg. Selenium was detected in soil samples N-1-20’, N-2-18’, N-4-4’, N-5-8’ and N-6-5’ concentrations above the NC DEQ protection of groundwater PSRG of 2.1 mg/kg. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 4 Thallium was detected in soil samples N-2-18’ and N-6-5’ at concentrations above the NC DEQ residential and protection of groundwater PSRGs of 0.16 mg/kg and 0.28 mg/kg, respectively. The remaining detections of metals in soil were at concentrations below the NC DEQ PRSGs. VOC CONSTITUENTS IN GROUNDWATER Tetrachloroethylene (PCE) was detected at a concentration of 2.1 ug/L in groundwater sample N-2GW above the NC DEQ 15A NCAC 02L .0202 Groundwater standards of 0.7 ug/L. The remaining VOC constituents detected in groundwater were at concentrations below NC DEQ 15A NCAC 02L .0202 Groundwater Standards. SVOC CONSTITUENTS IN GROUNDWATER No SVOC constituents were detected at concentrations that exceeded the laboratory reporting limits in groundwater samples N-1GW, N-2GW, N-3GW, and N-5GW. METALS CONSTTIUENTS IN GROUNDWATER Mercury, Antimony, Arsenic Beryllium, Cadmium, Chromium, Copper, Lead, Nickel, Selenium, and Zinc were detected in groundwater samples N-1GW, N-2GW, N-3GW and N-5GW at concentrations above the laboratory reporting limits. The remaining priority pollutant metals (Boron, Silver, and Thallium) were not detected in groundwater at concentrations above the laboratory reporting limits. The Priority Pollutant Metals including Boron were detected in the groundwater samples at concentrations below NC DEQ 15A NCAC 02L .0202 Groundwater Standards. Based on the findings of these assessments, the Subject Property was entered into the NC DEQ Brownfields Programs via a Brownfields Property Application dated November 6, 2020 and amended December 11, 2020. NOVA understands that NC DEQ has requested additional assessment of soil, groundwater, sub-slab soil gas and exterior soil gas at the Subject Property. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 5 1.3 DATA GAPS NOVA’s Work Plan is designed to assess the current conditions at the Subject Property. Currently, NOVA and NC DEQ has identified four (4) main areas of concern, including the area along the rail line, the northwestern parking area, the southwestern parking area and the eastern parking area. Additionally, the Work Plan intends to assess the subsurface conditions at the Subject Property in relation to the planned mixed-use redevelopment, including commercial, retail, and residential space. NOVA has developed this Work Plan to assess soil, groundwater, sub-slab soil gas and exterior soil gas conditions at the Subject Property in previously unassessed areas. NOVA will collect soil, groundwater, and exterior soil gas from the northern parking lot area; soil and exterior soil gas from the eastern parking lot area; sub-slab soil gas and soil from along the rail line; and soil and exterior soil gas from the southwestern parking lot area of the Subject Property. The soil gas data can be used to assess the potential for vapor intrusion to impact future tenants and residents at the Subject Property. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 6 2.0 SCOPE OF WORK Prior to beginning field activities, NOVA will contact the State Utility Protection Center, as required by law. Due to the tight site conditions, the potential for unmarked utilities and the various ages/unknown construction history of the Subject Property, NOVA will arrange for a private utility locate service to mark the utilities at the specific boring locations. Please note that marking utilities across the entire site is not included in NOVA’s work scope. NOVA will be completing site activities throughout the Subject Property. Soil and/or groundwater sampling activities will be conducted within four (4) main areas of concern, including the area along the rail line, the northwestern parking area, the southwestern parking area and the eastern parking area. Soil gas sampling will be located throughout the Subject Property generally within the foot print of the proposed development buildings. A Site Map is provided as Figure 2 in the Attachments identifying the sampling locations. 2.1 SOIL SAMPLING Based on information collected during previous assessments, NOVA proposes collecting soil samples from four (4) soil borings (N-7 through N-10) at the Subject Property to assess subsurface conditions. A Site Map identifying the sampling locations is provided as Figure 2 in the Attachments. Soil samples will be collected at a depth of two (2) feet and then at five-foot intervals to a maximum depth of ten (10) feet bgs from each of the four (4) soil. Soil will be sampled for classification and will be field screened for organic vapors using a Photo-Ionization Detector (PID). Soil samples will be submitted for analysis based on field screening and/or visual observations that indicate impacted soil. If field screening and/or visual observations do not indicate impacted soil, one (1) soil sample from a shallow depth (0-2 feet) and one (1) deeper sample (>5 feet) from the deepest portion of the unsaturated zone of each boring will be submitted to an appropriately accredited laboratory for the following analyses: • Volatile Organic Compounds (VOCs) by United States Environmental Protection Agency (US EPA) Solid Waste (SW)-846 Method 8260, • Semi-Volatile Organic Compounds (SVOCs) by USEPA SW-846 Method 8270, • Resource Conservation and Recovery Act (RCRA) Metals by USEPA SW-846 Method 6010 and 7473, and • Hexavalent Chromium by USEPA SW-846 Method 7196. In addition, NOVA will advance two (2) screening soil borings (N-4A and N-4B) to a depth between three and five (3-5’) bgs along the southeast side of the Subject Property. The previous soil boring N-4 identified a dark layer of soils in the area and the screening samples Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 7 will be used to assess the potential for this layer to extend along the edge of the Subject Property. If the dark soil layer is observed, samples of the dark soils will be collected from the borings and analyzed as noted above. 2.2 GROUNDWATER SAMPLING One (1) temporary groundwater monitoring well will be installed at the Subject Property. The temporary groundwater monitoring well will be installed using either a direct push technology or auger drill rig to the desired depth. The temporary groundwater monitoring wells will be installed by a North Carolina certified well driller. The one (1) temporary groundwater monitoring well will be located in the northern parking lot area of the Subject Property. The temporary groundwater monitoring well will be installed, sampled and abandoned in accordance with local and state governmental requirements. A Site Map identifying the sampling location is provided as Figure 2 in the Attachments. Prior to conducting groundwater sampling activities, NOVA will develop the one (1) newly constructed temporary groundwater monitoring well. The well will be developed by purging approximately three (3) to five (5) well volumes or until turbidity is reduced below 10 NTUs. NOVA will collect groundwater quality parameters (pH, temperature, ORP, DO, turbidity and conductivity) after each purge volume. Once water is allowed to recharge, groundwater samples will be submitted to an appropriately accredited laboratory for the following analyses : • VOCs by USEPA SW-846 Method 8260, • SVOCs by USEPA SW-846 Method 8270, and • RCRA Metals by SW-846 Methods 6010/7470. 2.3 SOIL GAS AND SUB-SLAB SAMPLING Five (5) exterior soil gas monitoring points and three (3) sub-slab soil gas monitoring points (SG-1 through SG-8) will be constructed on the Subject Property. The exterior soil gas monitoring points will be hand augured to a minimum depth of greater than five (5) feet bgs. Following the advancement of each exterior soil gas sampling point, a length of 0.250-inch Outside Diameter (OD) flexible nylon tubing equipped with a particulate filter will be inserted into the monitoring point. The exterior soil gas monitoring points will then filled with approximately four (4) inches of industrial quartz sand. The remaining portion of the exterior soil gas monitoring points will be filled with granular bentonite in three (3) inch increments and hydrated with water to create an airtight seal between the monitoring point and the atmosphere. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 8 The three (3) sub-slab soil gas monitoring points will be advanced six (6) inches below the building slab. The sub-slab soil gas monitoring points will then be filled with approximately three (3) inches of industrial quartz sand. The remaining portion of the sub-slab monitoring points will be filled with three (3) inch of granular bentonite and hydrated with water to create an airtight seal between the monitoring point and the atmosphere. Collected exterior soil gas and sub-slab soil gas samples will be submitted to an appropriately accredited laboratory for the following analyses: • Volatile Organic Compounds (VOCs) by United States Environmental Protection Agency (US EPA) Method TO-15. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 9 3.0 SAMPLING METHODOLOGY Field procedures and protocols used during this assessment will be performed in general accordance with those prescribed in ASTM International (ASTM) Standard Practice for Environmental Site Assessments: Phase II Environmental Site Assessment Process, Designation: E1903-19, USEPA Region IV Science and Ecosystem Support Division (SESD) guideline document LSASDPROC-300-R4 dated June 11, 2020 for soil sampling, guideline document SESDPROC-301-R4 dated April 26, 2017 for groundwater sampling, the North Carolina Division of Waste Management (DWM) Inactive Hazardous Sites Branch (IHSB) Program’s Guidelines for Assessment and Cleanup of Contaminated Sites dated January 2020 Version 2, and the North Carolina Department of Environmental Quality (NC DEQ) Division of Waste Management (DWM) Vapor Intrusion Guidance document dated March 2018 for soil vapor sampling. 3.1 SOIL SAMPLING Soil samples will be collected utilizing direct push or auger technology at a depth of two (2) feet and then at five-foot intervals to a maximum depth of ten (10) feet bgs from each of the four (4) soil borings (N-7 through N-10). The soils will be collected using either a 1.5-inch dual tube sampling liner or a 2-inch split spoon sampler. Soil will be sampled for classification and will be field screened for organic vapors using a Photo-Ionization Detector (PID). Soil samples will be submitted for analysis based on field screening and/or visual observations that indicate impacted soil. If field screening and/or visual observations do not indicate impacted soil, one (1) soil sample from a shallow depth (0-2 feet) and one (1) deeper sample (>5 feet) from the deepest portion of the unsaturated zone of each boring will be submitted to an appropriately accredited laboratory for analysis. During soil collection activities either new 1.5-inch dual tube sampling liner will be used for each sampling interval or 2-inch split spoon samplers will be thoroughly decontaminated between each sampling interval using a non-environmentally impacting detergent, deionized water and isopropyl alcohol. Soil samples will be collected in laboratory-provided sampling containers and placed on ice for transport to the laboratory. The samples will be kept on ice for transport to an accredited laboratory under proper chain-of-custody procedures. Soil borings will be abandoned by filling with bentonite. In addition, NOVA will advance two (2) screening soil borings (N-4A and N-4B) to a depth between three and five (3-5’) bgs along the southeast side of the Subject Property. The previous soil boring N-4 identified a dark layer of soils in the area and the screening samples will be used to assess the potential for this layer to extend along the edge of the Subject Property. If the dark soil layer is observed, samples of the dark soils will be collected from the borings. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 10 3.2 GROUNDWATER SAMPLING New polyethylene tubing will be lowered into the temporary monitoring well and it will be purged of three (3) to five (5) volumes using a peristaltic pump. Once water is allowed to recharge, the groundwater sample will be obtained for laboratory analysis. During the well development, NOVA will collect groundwater quality parameters (pH, temperature, ORP, DO, turbidity and conductivity) after each purge volume. The temporary groundwater monitoring well will be constructed as a temporary piezometer, with a temporary cap. Once the groundwater sample has been collected, the temporary well will be properly abandoned. The groundwater sample will be collected into laboratory-provided sampling containers and placed on ice for transport to the laboratory. The sample will be kept on ice for transport to an accredited laboratory under proper chain-of-custody procedures. 3.3 SOIL GAS AND SUB-SLAB SOIL VAPOR SAMPLING Prior to conducting soil gas sampling activities, the soil gas monitoring points will be allowed to equilibrate with the surrounding conditions for 24-hours prior to sample collection. Sub-slab soil gas sample collection will be conducted approximately 2-hours after completion of the sub-slab soil gas monitoring point. During the sampling event, each sample point will be subjected to the following two (2) quality control tests: • A Helium Leak Test, to confirm an airtight seal between the nylon tubing and the ground and within the sampling apparatus. The leak test will be conducted using a shroud covering the monitoring point which is filled with laboratory grade helium to a minimum of two (2) percent. Approximately 300 ml of soil gas will be purged then an additional 300 ml will be collected into a tedlar bag and screened for helium. Helium levels in the tedlar bag will need to be less than ten (10) percent the lowest levels within the shroud to constitute a good seal; and • A Shut-in Test, to confirm an airtight seal in the components of the test apparatus. The Shut-in Test will be conducted once the pieces of the sampling apparatus are assembled, and the summa canister is connected to the monitoring point. The monitoring point will be closed to the environment then the summa canister will be opened. The pressure gauge on the summa canister will be monitored to see that pressure within the system is stable and no leaks are occurring. After each sample point passes the quality control tests within acceptable limits, the test apparatus and nylon tubing will purged of approximately three (3) volumes of air. The soil gas samples will be collected using one (1) 200 milliliter (ml) laboratory-provided summa canisters and delivered to accredited laboratory under proper chain-of-custody procedures. The summa canister will be provided with a regulator which allows for the collection of the soil gas at a rate of between 100 and 200 ml per minute. Vacuum Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 11 readings on the summa canisters will be monitored continuously during sample collection. The beginning and end times for the sample collection as well as the pressure readings will be collected during the sampling event. The summa canister will be filled leaving a slight vacuum within the canister. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 12 4.0 LABORATORY ANALYSIS NOVA will work with a National Environmental Laboratory Accreditation Program (NELAP)-accredited laboratory with laboratory reporting limits/method detection limits that meet applicable regulatory thresholds. Laboratory data will be reported under Level II quality assurance/quality control (QA/QC) criteria. In addition, method detection limits (MDL) and j-flags (estimated concentrations between the method detection limits and the laboratory detection limit) will be included in the laboratory reporting. 4.1 SOIL ANALYSIS Soil samples will be submitted to a North Carolina certified laboratory for the following analyses: • Volatile Organic Compounds (VOCs) by United States Environmental Protection Agency (US EPA) Solid Waste (SW)-846 Method 8260, • Semi-Volatile Organic Compounds (SVOCs) by USEPA SW-846 Method 8270, • Resource Conservation and Recovery Act (RCRA) Metals by USEPA SW-846 Method 6010 and 7473, and • Hexavalent Chromium by USEPA SW-846 Method 7196. The collected samples will be kept on ice for transport to an accredited laboratory under proper chain-of-custody procedures. 4.2 GROUNDWATER ANALYSIS Groundwater samples will be submitted to an North Carolina certified laboratory for the following analyses: • VOCs by US EPA SW-846 Method 8260, • SVOCs by USEPA SW-846 Method 8270, and • RCRA Metals by SW-846 Methods 6010/7473. The collected samples will be kept on ice for transport to an accredited laboratory under proper chain-of-custody procedures. 4.3 SOIL GAS AND SUB-SLAB ANALYSIS Soil gas and sub-slab samples will be submitted to a National Environmental Laboratory Accreditation Program (NELAP) accredited laboratory for the following analysis: • VOC Target Compound List (TCL) by USEPA Method TO-15. The collected samples will be transported to an accredited laboratory under proper chain-of-custody procedures. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 13 5.0 QUALITY ASURANCE / QUALITY CONTROL Samples will be labeled with a distinct sample identification number, the sampler’s initials and the date of collection. Each sample container will be properly sealed, labeled, and placed in an ice chest (with ice) for same-day transport to an accredited laboratory (AES) which used USEPA SW-846 protocols. A properly completed chain-of-custody form was initiated in the field and accompanied the samples when submitted to the laboratory for analyses. During soil sampling activities, NOVA will collect one (1) duplicate sample of soil for QA/QC purposes. The duplicate sample will be analyzed for the same parameters and by the same methods as the soil samples collected for assessment. During groundwater sampling activities, NOVA will collect one (1) duplicate sample of groundwater for QA/QC purposes. The duplicate sample will be analyzed for the same parameters and by the same methods as the groundwater sample collected for assessment. One (1) trip blank will be analyzed per sampling event and will accompany the groundwater samples for QA/QC purposes. The trip blank samples will be analyzed for VOC by US EPA SW-846 Method 8260. During soil gas sampling activities, NOVA will collect one (1) duplicate sample of soil gas for QA/QC purposes. The duplicate sample will be analyzed for the same parameters and by the same methods as the soil gas samples collected for assessment. NOVA will collect a sufficient amount of sample for the laboratory to run Matrix Spike (MS) and Matrix Spike Duplicate (MSD) analyses. The collected samples will be transported to an accredited laboratory under proper chain-of-custody procedures. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 14 6.0 INVESTIGATION DERIVED WASTE (IDW) MANAGEMENT Investigation derived waste (IDW) generated from the construction, development and sampling of monitoring wells (i.e. soil cutting, development water and purge water) will be managed in general accordance with NCDEQ-DWM-IHSB Program Guidelines for Assessment and Cleanup (Revised January 2020). IDW will be containerized in DOT approved 55-gallon drums pending analytical results. NOVA will use the analytical data collected during the soil and groundwater assessment for waste characterization purposes. If analytical data indicates soils cannot be spread on site, NOVA will engage a subcontractor to properly dispose the soils off-site. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 15 7.0 RECEPTOR SURVEY NOVA will conduct a receptor survey for the Subject Property. The receptor survey will be conducted in general accordance with NC Brownfields protocols and completed using the NC Brownfields receptor survey form. A blank copy of the NC Brownfields receptor survey form is provided in the attachments. Environmental Site Assessment Work Plan June 25, 2021 Bland Street Assemblage Site NOVA Project Number 3021016 Page 16 8.0 REPORTING Following the completion of the aforementioned assessment, NOVA will produce a Limited Environmental Site Assessment (ESA) report. The Limited ESA will document the field activities performed, work practices, provide the analytical results for samples collected, provide a receptor survey, and present possible recommendations. In addition, laboratory analytical results not meeting QA/QC objectives will be identified. The Limited ESA will also be used to evaluate future site restrictions and activities needed to comply with the NCDEQ Brownfields Agreement. FIGURE 1 SITE LOCATION MAP SOURCE: EDR Report USGS 7.5 Minute Topographic Quadrangle 2013, Charlotte East, North Carolina SCALE: As Shown COUSINS 200 EAST BLAND LP Bland Street Assemblage Charlotte, Mecklenburg County, NC NOVA Project Number 3020016 Subject Property FIGURE 2 SITE MAP SOURCE: www.google.com SCALE: As Shown COUSINS 200 EAST BLAND LP Bland Street Assemblage Site Charlotte, Mecklenburg County, North Carolina NOVA Project Number 3020016 Approximate Subject Property Boundary N-1 N-2 N-3 N-4 Previous Boring and Sampling Location N-5 N-6 Proposed Exterior Soil Gas Monitoring Point Proposed Groundwater Monitoring Point Proposed Soil Boring and Sampling Location Proposed Sub Slab Vapor Monitoring Point MW-1 SG-4 SG-3 SG-5 SG-1 SG-2 SG-8 SG-7 SG-6 N-7 N-8 N-10 N-9 Proposed Screening Soil Boring and Sampling Location N-4B N-4A North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Site: Address: City: County: Brownfields Project Number: Date 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. 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?). 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 UsageSurface Conditions % of property that is grassed areas % of property that is agricultural crops % of property that is paved 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 Rev. 09/2015 Page 1 of 3 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program 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. Zoning/Land Use Proposed Usage Current Use/Occupant 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. 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 Property? 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) * 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 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? Rev. 09/2015 Page 2 of 3 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Water Supply What is the potable water supply for the property? Public ______ Private ______ Surface Water & Wetlands 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 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. 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. 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 boundary?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. The purpose of this section is to provide information on the water supply for the site and surrounding areas. 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? Rev. 09/2015 Page 3 of 3