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HomeMy WebLinkAbout22047_University Place Mall_Assessment WP_20190220Brownfields Assessment Work Plan University Place Mall 201 S. Estes Drive Chapel Hill, North Carolina Brownfields Project No. 22047-18-068 H&H Job No. RMR-005 February 20, 2019 1111 hart hickman SMARTER ENVIRONMENTAL SOLUTIONS #C-1269 Engineering #C-245 Geology 2923 South Tryon Street, Suite 100 3921 Sunset Ridge Rd, Suite 301 Charlotte, NC 28203 Raleigh, NC 27607 www.harthickman.com 704.586.0007 main 919.847.4241 main Brownfields Assessment Work Plan University Place Mall 201 S. Estes Drive Chapel Hill, North Carolina H&H Job No. RMR-005 Table of Contents 1.0 Introduction.............................................................................................................................1 1.1 Background............................................................................................................................2 1.2 Previous Assessment Activities.............................................................................................2 2.0 Brownfields Assessment Scope of Work...............................................................................5 2.1 Receptor Survey....................................................................................................................5 2.2 Sub -Slab Gas Sampling Methodology..................................................................................5 2.3 Laboratory Analyses..............................................................................................................7 2.4 Quality Assurance — Quality Control....................................................................................8 2.5 Investigative Derived Waste..................................................................................................8 2.6 Reporting...............................................................................................................................9 List of Tables Table 1 Proposed Sampling Locations and Analyses List of Figures Figure 1 Site Location Map Figure 2 Site Map and Prior Sample Location Map Figure 3A Proposed Sample Location Map — Mall Building Figure 3B Proposed Sample Location Map — Chapel Hill Tire List of Appendices Appendix A Template Brownfields Property Receptor Survey Form 1 hart � hickman S:WAA-Master Projects\Ram Realty - RMR\RMR-005 University Mall\Bmwnfields Assessment\Work Plan\Brownfields Assessment Work Plan University Place Mall_(BPN 22047-18-068)_20190215.doc SMARTER ENVIRONMENTAL SOLUTIONS Brownfields Assessment Work Plan University Place Mall 201 S. Estes Drive Chapel Hill, North Carolina H&H Job No. RMR-005 1.0 Introduction On behalf of Ram Realty Acquisitions V LLC (Prospective Developer or PD), Hart & Hickman, PC (H&H) is providing this Work Plan to conduct Brownfields assessment activities at the University Place Mall Brownfields property (Brownfields Project No. 22047-18-068) located at 201 South Estes Drive in Chapel Hill, Orange County, North Carolina (Site). The subject Site consists of one approximately 39.5-acre parcel of land improved with a 365,000-square foot (sq ft) retail shopping center building, a 53,000-sq ft grocery store outbuilding, four additional outbuildings, and an associated parking lot that encompasses most of the Site. The shopping center building is currently comprised of 61 retail units, including restaurants, two fitness centers, a movie theater, a children's museum, and various retail stores. The outbuildings on the Site include a Harris Teeter grocery store with Chapel Hill Tire (CHT) connected, a K&W restaurant, a Pantry gasoline station, a SunTrust bank, and a vacant building. The PD acquired the Site property on December 28, 2018. Future redevelopment at the Site includes construction of four additional outbuildings, renovations to the parking area, and reconfiguration of the primary retail shopping center building to include outward facing entranceways, a modified interior layout, and construction of a roadway and parking spaces dividing the Southern Seasons tenant area into a separate stand-alone building. The future intended uses of the new buildings include retail, office, restaurant spaces, and a children's museum. The Kidzu Children's Museum currently occupies a space in the primary retail shopping center building, but will be relocated to a new space in the same building as part of the Site redevelopment activities. A Site location map is provided as Figure 1, and the Site and surrounding area are shown on Figure 2. 19 1 hart' hickman S:\.4AA-Master Projects\Ram Realty - RMR\RMR-005 University Mall\Brownfields Assessment\Work Plan\Brownfields Assessment W Work Plan_ University Place Mall_(BPN 22047-18-068)_20190215.doc SMARTER ENVIRONMENTAL SOLUTIONS 1.1 Background The Site was undeveloped/wooded and/or agricultural land (likely row crops) in the earliest historical resource reviewed, a 1938 aerial photograph. In the early to mid-1960s, the Site was cleared and graded for development. The shopping center building and associated outbuildings were constructed in 1972, with the exception of the K&W outbuilding which was constructed in the mid-1990s. Since development, the shopping center building has remained relatively unchanged. Renovation activities were conducted on the shopping center building in 2016. The renovation activities included demolition and reconstruction of the current movie theater building and exterior cosmetic additions to the western portion of the building. 1.2 Previous Assessment Activities H&H completed a Phase I Environmental Site Assessment (ESA) at the Site in April 2018, which identified four recognized environmental conditions (RECs). In May 2018, H&H conducted Phase II soil and groundwater assessment activities to assess the potential for impacts associated with the RECs. The RECs identified at the Site and the results of the Phase II ESA are summarized below. American Dry Cleaners — REC # 1 • Releases of chlorinated solvents were historically identified in the area of the former American Dry Cleaners that are being addressed by the North Carolina Dry -Cleaning Solvent Cleanup Act (DSCA) Program. Supplemental sampling was performed during the Phase II ESA to fill data gaps in the prior assessment and confirm whether groundwater concentrations along the property boundary are stable or decreasing. Soil sampling was performed to evaluate whether surficial soil impacts could extend towards the area of a playground on the adjacent church property. The results of the soil sampling indicated no impacts at concentrations above applicable screening levels. Groundwater samples were collected from three existing monitoring wells located along the property boundary between the Site and the adjacent church. The results of the groundwater sampling indicated some increases in tetrachloroethylene (PCE) breakdown products in one well, but these increases are indicative of PCE degradation and are Id- 2 hart' hickman S:\.4AA-Master Projects\Ram Realty - RMR\RMR-005 University Mall\Brownfields Assessment\Work Plan\Brownfields Assessment W Work Plan_ University Place Mail_(BPN 22047-18-068)_20190215.doc SMARTER ENVIRONMENTAL SOLUTIONS therefore not considered a significant concern. Other than these increases, concentrations for the remaining wells and constituents were generally either lower than or within the range of historically observed concentrations Chapel Hill Tire — REC #2 • Chapel Hill Tire has operated an automobile repair facility in a space connected to the Harris Teeter outbuilding since at least 1977. Soil and groundwater sampling was performed during the Phase II ESA to investigate the potential for releases from a used motor oil aboveground storage tank (AST), five out -of -use hydraulic lifts, and an area of interior surface staining. The results of the sampling indicated no evidence of impacts above applicable screening levels or typical background levels for metals due to releases from the used motor oil AST or surface staining. Petroleum impacts were identified in soil and groundwater at concentrations above applicable screening levels in the area of the underground hydraulic lifts. Chlorinated solvent constituents were also detected in soil and groundwater samples. Pantry Gas Station — REC #3 • A Pantry Gas Station currently operates on the southeastern portion of the Site. Soil and groundwater sampling was performed during the Phase II ESA to investigate the potential for releases from the existing UST system and a former hearing oil UST. The results of the sampling indicated no evidence of impacts at concentrations above applicable screening levels or typical background levels for metals. Additional Former Drv-Cleaners — REC #4 • Historical references indicated that Bailey's Mini Cleaners and Carolina Cleaners may have operated at unknown locations at the Site. During the Phase II ESA, groundwater samples were collected at locations downgradient of the buildings where the dry-cleaners may have operated. The results of the sampling indicated no evidence of impacts at concentrations above applicable screening levels. Id 3 hart' hickman S:\.4AA-Master Projects\Ram Realty - RMR\RMR-005 University Mall\Brownfields Assessment\Work Plan\Brownfields Assessment W Work Plan_ University Place Mail_(BPN 22047-18-068)_20190215.doc SMARTER ENVIRONMENTAL SOLUTIONS On October 24, 2018, the Brownfields Program issued a Conditional Letter of Eligibility (CLOE) for the University Place Mall Brownfields Site. The CLOE provides liability protections for the chlorinated solvents at and stemming from the CHT facility. Petroleum impacts associated with the CHT facility are excluded from the CLOE and will be handled separately under the Department of Environmental Quality (DEQ) Underground Storage Tank (UST) Section. The CLOE indicates that execution of a Brownfields Agreement (BFA) is contingent on entry of petroleum contamination associated with the underground hydraulic lifts at CHT to the UST Section and receipt of a No Further Action (NFA), or its equivalent. The PD is in the process of assessing the underground hydraulic lifts within CHT to meet the UST Section requirements for a NFA. The CLOE also indicates that execution of a BFA is contingent on entry of the American Dry Cleaners release into the DSCA Program. The American Dry Cleaners release was previously accepted into the DSCA Program in 2008. The PD purchased the Site property on December 28, 2018, and submitted the required paperwork to the DSCA Program to replace the prior property owner as the petitioner for the American Dry Cleaners release on February 5, 2019. On January 24, 2019, H&H participated in a data gap meeting with the PD, counsel for the PD, and DEQ Brownfields personnel to discuss the previous assessment activities, proposed redevelopment plans, and data gaps. Per the data gap meeting, H&H proposes to conduct sub - slab gas assessment activities at the CHT facility and in the area where the Kidzu Children's Museum will be relocated within the University Place mall building. H&H will also complete receptor survey activities in the area surrounding the Site as part of the proposed assessment. Our proposed scope of work is outlined in the following sections. 19 4 hart' hickman S:\.4AA-Master Projects\Ram Realty - RMR\RMR-005 University Mall\Brownfields Assessment\Work Plan\Brownfields Assessment W Work Plan_ University Place Mall_(BPN 22047-18-068)_20190215.doc SMARTER ENVIRONMENTAL SOLUTIONS 2.0 Brownfields Assessment Scope of Work The proposed assessment activities will be performed in general accordance with the DEQ Inactive Hazardous Sites Branch (IHSB) Guidelines for Assessment and Cleanup (Guidelines) dated October 2015, the DEQ Division of Waste Management (DWM) Vapor Intrusion Guidance (VI Guidance) dated March 2018, and most recent versions of the U.S. Environmental Protection Agency (EPA) Region IV Science and Ecosystem Support (SESD) Field Branches Quality System and Technical Procedures guidance. Prior to conducting the field activities, H&H will contact North Carolina 811, the public utility locator, to mark subsurface utilities located on the Site. H&H will also contract with a private utility locator to screen proposed sample locations for subgrade utilities that may not be marked by the public locator. Lastly, H&H will prepare a site -specific Health and Safety Plan in accordance with Occupational Health and Safety Administration (OSHA) requirements. 2.1 Receptor Survey H&H will perform a Brownfields receptor survey in accordance with DEQ Brownfields Section guidance. The receptor survey will include a walk-through survey of the Site property, a drive - through survey of the area within 1,500 feet of the Site, and a desktop review of publicly available information. The receptor survey will focus on identification of property and building characteristics, land -use, utilities, water supply wells, surface water bodies, and wetlands within the search radii required by the Brownfields Program. A template copy of the Brownfields Property Receptor Survey form is provided in Appendix A. 2.2 Sub -Slab Gas Sampling Methodology H&H proposes to collect a total of six sub -slab gas samples to evaluate the potential for structural vapor intrusion at the Site. Three sub -slab gas samples will be collected from within the CHT facility, including two in the service area and one in the office area, based upon the presence volatile organic compounds (VOCs) in shallow soil and groundwater. Three additional 19 5 hart' hickman S:\.4AA-Master Projects\Ram Realty - RMR\RMR-005 University Mall\Brownfields Assessment\Work Plan\Brownfields Assessment W Work Plan_ University Place Mail_(BPN 22047-18-068)_20190215.doc SMARTER ENVIRONMENTAL SOLUTIONS sub -slab gas samples will be collected within the mall building in the area where the children's museum will be relocated, based upon the potential historic presence of a dry-cleaning facility at an unknown location at the Site. Note that the exact location of the children's museum has not been confirmed and may be in one of two proposed tenant spaces. The proposed sub -slab gas sampling locations cover both possible museum spaces. Each sub -slab gas sample will be collected at least 10 feet from exterior walls and/or observable surface cracks or conduits. Proposed sub -slab gas monitoring point locations are shown on Figures 3A and 3B. H&H will install a Cox -Colvin Vapor Pin® (vapor pin) at each proposed sub -slab gas sample location. For installation of the vapor pin, a hammer drill with a 5/8-inch diameter bit will be utilized to penetrate the concrete slab with a drilled pilot hole. The vapor pin assembly (sampling point and silicone sleeve) will then be placed into the pilot hole and secured using an installation/extraction tool and a "dead blow" hammer to form an air -tight seal. Once the vapor pin assembly has been secured in the pilot hole, 1/4-inch diameter Teflon® sample tubing will be attached to the vapor pin assembly sample port barb. During the vapor pin installation, H&H will document encountered material present immediately beneath the concrete slab, i.e. gravel, sand, clay, etc. After installation of the vapor pins and prior to sample collection, a leak check will be conducted at each sample location by constructing a shroud around the sampling point, sampling fittings, and sampling connections, and flooding the air within the shroud with helium gas. Helium within the shroud will be monitored using a helium gas detector. Using a syringe and a three- way valve, the sample point will be purged. A sub -slab gas sample will then be collected outside of the shroud into a Tedlar® bag and analyzed using the helium gas detector to ensure that helium concentrations are less than 10% of the concentration in the shroud. Following a successful leak check, sub -slab gas samples will be collected in laboratory -supplied 1 liter (or greater volume) stainless steel Summa canisters connected to in -line flow controllers with a laboratory calibrated vacuum gauge. The flow controller will be connected to the sample tubing at each sampling point using a brass nut and ferrule assembly to form an air -tight seal. The flow regulator will be pre-set by the laboratory to regulate the intake rate to approximately Id- 6 hart' hickman S:\.4AA-Master Projects\Ram Realty - RMR\RMR-005 University Mall\Brownfields Assessment\Work Plan\Brownfields Assessment W Work Plan_ University Place Mall_(BPN 22047-18-068)_20190215.doc SMARTER ENVIRONMENTAL SOLUTIONS 100 milliliters per minute. Once the sample train is assembled, the intake valve on the canister will be fully opened to begin collection of the sub -slab gas sample. Vacuum readings on the Summa canister will be recorded prior to and following the sampling period to ensure adequate sample volume was collected. A vacuum will be maintained within the canisters at the conclusion of the sampling event. To evaluate the reproducibility of the sample results, one duplicate sub -slab gas sample will be collected using a laboratory -supplied T-sampler which allows collection of two samples from a single sample port simultaneously. Upon completion of sample collection, each Summa canister's valve will be closed and the regulator will be disconnected from the canister. The canisters will be placed in laboratory - supplied shipping containers, properly labeled, and shipped under standard chain -of -custody protocols to a qualified laboratory for analysis as described below. The samples will be labeled as SS-1 through SS-6. Upon completion of sampling activities, the sub -slab gas sample points will be abandoned and the surface will be repaired similar to pre -drilling conditions. Each sample location will be estimated by measuring from known benchmarks (e.g. doorways, walls, etc.). 2.3 Laboratory Analyses The sub -slab gas samples will be submitted to Contest Analytical Laboratory for analysis of VOCs by EPA Method TO-15. Contest is a North Carolina certified laboratory and is certified for EPA Method TO- 15 analysis under the National Environmental Laboratory Accreditation Program (NELAP). The laboratory will be requested to use reporting limits that are below DEQ Residential Sub -slab and Exterior Soil Gas Screening Levels (SGSLs). In addition, the laboratory will be requested to record and provide final vacuum readings upon receipt of the Summa canisters. Table 1 summarizes the proposed sample locations and analyses. 19 7 hart' hickman S:\.4AA-Master Projects\Ram Realty - RMR\RMR-005 University Mall\Brownfields Assessment\Work Plan\Brownfields Assessment W Work Plan_ University Place Mail_(BPN 22047-18-068)_20190215.doc SMARTER ENVIRONMENTAL SOLUTIONS 2.4 Quality Assurance — Quality Control Laboratory quality assurance/quality control (QA/QC) procedures will be employed to ensure appropriate sample handling and analysis and to aid in the review and validation of the analytical data. QA/QC procedures will be conducted in accordance with EPA method protocols and will include regular equipment maintenance, equipment calibrations, and adherence to specific sample custody and data management procedures. In accordance with approved methodologies, samples will be analyzed in conjunction with appropriate blanks, laboratory duplicates, continuing calibration standards, and surrogate standards to monitor both instrument and analyst performance. H&H will request that the laboratory report J flags, which are estimated concentrations for compounds that are detected at levels above the laboratory method detection limit, but below the laboratory reporting limit. The following activities will be conducted by H&H for QA/QC purposes: • non -dedicated equipment and tools will be decontaminated prior to use at each boring or sampling location, or following exposure to soil or groundwater • one duplicate sub -slab gas sample will be analyzed for VOCs by EPA Method TO-15 A copy of the laboratory analytical data report and QA package for the samples submitted to and analyzed by the subcontracted laboratory will be provided in an appendix to the final report. Laboratory QA data consistent with Level II documentation will be requested for this project. A copy of the completed chain -of -custody record including the final received Summa canister vacuums and shipping receipt will be appended to the corresponding laboratory analytical report included with H&H's final report. 2.5 Investigative Derived Waste No significant investigative derived waste is expected to be generated during the proposed sampling activities. 19 8 hart' hickman S:\.4AA-Master Projects\Ram Realty - RMR\RMR-005 University Mall\Brownfields Assessment\Work Plan\Brownfields Assessment W Work Plan_ University Place Mail_(BPN 22047-18-068)_20190215.doc SMARTER ENVIRONMENTAL SOLUTIONS 2.6 Reporting Following completion of the assessment activities and receipt of the analytical data, H&H will document our findings in a Brownfields assessment report. The report will include a description of the sampling activities, a figure depicting sample locations, a discussion of the data in comparison to regulatory screening levels, evaluation of the sub -slab gas data using the DEQ Risk Calculator, laboratory analytical data reports, and conclusions and recommendations concerning our activities. We will not proceed with the proposed assessment until we receive approval from you. Should have any questions or need additional information please do not hesitate to contact us at (919) 847-4241. Sincerely, Hart & Hickman, P.C. Patrick Stevens enna ison, PG Assistant Project Environmental Scientist Senior Project ` 6EhL e 9660 cc: Mr. Ashley Saulpaugh, Ram Realty Advisors (via email)�0��Gx`S� Ms. Karen Gellar, Ram Realty Advisors (via email) Qr ... Ms. Amanda K. Short, McGuireWoods, LLP (via email) �• U ��'� r 14 QV 9 hart49 hickman SAAAA-Muter Pmjcm Ram Realty- RMR'RMR-065 Un,ve,sity Mail Bmwnfields Assms i',Wwk Plan J3 wnRclds Am ment Work Plan—Univesity Placc Mall_IBPN 22047-18.0681}0190215 doe WAKM ENWRONMENUL SOLUnONS Table hart F hickman SMARTER ENVIRONMENTAL SOLLMONS Table 1 Proposed Sampling Locations and Analyses University Place Mall 201 S. Estes Drive Chapel Hill, NC H&H Job No. RMR-005 Sample ID Type of Sample Sample Objective Analytical Analytes Method Vapor intrusion SS-1, SS-2, SS-3 Sub -slab gas assessment for Chapel EPA TO-15 Full List Hill Tire Vapor intrusion SS-4, SS-5, SS-6 Sub -slab gas assessment for Kudzu EPA TO-15 Full List Children's Museum Quality Duplicate Sub -slab gas Assurance/Quality EPA TO-15 Full List Control Page 1 of 1 SMAA-Master Projects\Ram Realty -RMR\RMR-005 University Mall\Brmnfields Assessment\Tablet Hart & Hickman, PC Figures hart F hickman SMARTER ENVIRONMENTAL SOLLMONS 1f E z "o `v qg� 7 o � = c x N Y QQ Q 2 c = N E z "o `v qg� 7 o � = c x N Appendix A Template Brownfields Property Receptor Survey Form hart F hickman SMARTER ENVIRONMENTAL SOLLMONS North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program 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: Property and Building Characteristics Surface Conditions Current Usage Proposed Usage Size of Property (acres) % of property that is wooded/brush % of property that is grassed areas % of property that is agricultural crops % of property that is paved % of property that is covered by buildings 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. a. Provide occupancy and use information. 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). c. Describe the foundation construction. Include details on type, floor construction, and depth below grade. 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?). e. Are any subslab ventilation systems or moisture barriers in place? If so, please provide details. Rev. 09/2015 Page 1 of 3 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Surrounding Property Land Use 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 Current Use/Occupant Proposed Usage North South East West Specific Land Uses of Interest YIN * �ft� Distance Direction Address Is a school or daycare center within 1,000 ft of the Property? Is there a residence within 1,000 ft of the Property? Is there a basement within 1,000 ft of the Property * If numerous facilities of interest are present, their locations can be placed on a map in lieu of providing specific addresses. Utilities 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. 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. Utility/Potential Receptor Y/N Distance Direction Is a storm water pipe within 100 ft of the Property boundary? Is a sanitary sewer within 100 ft of the Property boundary? Is a septic system leach field within 500 ft of the Property boundary? 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 buried electrical cable main within 100 ft of Property boundary? * If yes, please provide a map or detailed information (distance, direction, depth) of the utility in correlation with the subject property. Rev. 09/2015 Page 2 of 3 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Water Supply The purpose of this section is to provide information on the water supply for the site and surrounding areas. What is the potable water supply for the property? Public Private 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. 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. Water Supply Wells Y/N Distance� ft� Direction Address 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 Is an irrigation well within 1,500 ft of the Property boundary? 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. Provide Information regarding Surface Water Response/Comments and Wetlands Are there surface water features on the property? (If yes, please complete a. to d.) a. Is the water body naturally developed or man-made? 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