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HomeMy WebLinkAbout26076_1601 S Blvd VIMP_rev 1_20231214Hanley Environmental, PLLC 323 Manning Drive Charlotte, North Carolina 28209 NC Engineering License P-2407 T: (704) 317-6970 www.hanleyenvironmental.com VAPOR INTRUSION MITIGATION PLAN 1601 South Boulevard Brownfields Property 1601-1617 South Boulevard and 1612 Cleveland Avenue Charlotte, Mecklenburg County, North Carolina Brownfields Project No. 26076-22-060 Project Number: PJ23045 December 14, 2023 Prepared for: ECS Southeast, LLP 1812 Center Park Drive, Suite D Charlotte, North Carolina 28217 On Behalf of South End 1, LLC Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property i TABLE OF CONTENTS TABLE OF CONTENTS i 1.0 INTRODUCTION 1 1.1 Assessment Summary 2 1.2 System Overview and Objectives 3 1.3 Proposed Development Overview 3 1.4 Contact Information 4 1.5 Certification 5 2.0 DESIGN BASIS 6 2.1 VIMS Design 6 2.2 Considerations for Slab Pour-Back Areas 9 3.0 QUALITY ASSURANCE/QUALITY CONTROL 10 4.0 PRE-OCCUPANCY EFFECTIVENESS TESTING 11 4.1 Pressure Field Extension Testing 11 4.2 Pre-Occupancy Sub-Slab Soil Gas Sampling 12 4.3 Pre-Occupancy Indoor Air Sampling 13 5.0 POST-OCCUPANCY EFFECTIVENESS TESTING 15 5.1 Post-Occupancy Monitoring Requirements 15 5.2 Contingency for System Activation 16 6.0 FUTURE TENANTS & BUILDING USES 17 7.0 REPORTING 18 8.0 DESIGN SUBMITTAL EXHIBITS 18 9.0 SPECIAL CONSIDERATIONS FOR RETROFITS 19 10.0 REFERENCES 19 Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property ii List of Tables Table 1 Building Summary Table 2 VIMS Component Summary List of Figures Figure 1 Site Location Map Figure 2 Historical Sample Locations Overlaying Redevelopment Plans List of Appendices Appendix A VIMS Design Submittal Requirements Checklist Appendix B Historical Data Summary Appendix C Site Redevelopment Plans Appendix D Vapor Intrusion Mitigation System Design Drawings and Specifications Appendix E VIMS Product Information Appendix F TO-15 Analyte List Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 1 1.0 INTRODUCTION This Vapor Intrusion Mitigation Plan presents the design of a vapor intrusion mitigation system (VIMS) for a proposed building at the South Boulevard Properties/McCorkles Cleaners Brownfields Property (Site ID 26076-22-060) located at 1601 – 1617 South Boulevard and 1612 Cleveland Avenue, Charlotte, Mecklenburg County, North Carolina (the site). The site is an approximately 0.611-acre property comprising five parcels (Parcel IDs 12307312, 12307131, 12307134,12307135, and 12307308). A map depicting the site location is included as Figure 1. The site currently contains two buildings, metal awnings, paved parking areas, and landscaped areas. The buildings were reportedly constructed between 1939 and 1940 with historical commercial uses. The current redevelopment plans for the site include the demolition of the existing buildings and the redevelopment into a mixed-use retail/commercial and multifamily residential tower community with associated amenities. A Brownfields Property Application was originally submitted on October 19, 2022, by Womble Bond Dickinson on behalf of prospective developer South End 1, LLC. A Letter of Eligibility to participate in the Brownfields Program was provided by NCDEQ on December 16, 2022 (designated McCorkles Cleaners Brownfields Site with Site ID 26076-22-060). On March 8, 2023, Womble Bond Dickinson submitted an Amended Brownfields Property Application to add parcel 12307315 and the subsequent Amended Letter of Eligibility was received from NCDEQ on May 2, 2023. On May 24, 2023, a brownfields kickoff meeting was held in which NCDEQ suggested that the name of the Brownfields site be changed to 1601 South Boulevard (the Brownfields project number remained unchanged). A Brownfields Agreement is expected to be issued in the near future. This report has been prepared pursuant to the North Carolina Department of Environmental Quality (NCDEQ) Brownfields Redevelopment Section’s DRAFT Vapor Intrusion Mitigation System (VIMS) Design Submittal Requirements checklist dated February 2023 (Appendix A). The Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 2 report includes a basis of design along with system design drawings and specifications, quality assurance/quality control (QA/QC) procedures, pre-occupancy testing requirements, post-occupancy operation, maintenance, monitoring (OM&M), and reporting procedures. 1.1 Assessment Summary Environmental assessment activities performed at the site are summarized in documents listed below. Data summary excerpts from these reports are included in Appendix B.  Environmental Assessment Services Report, dated April 18, 2023, prepared by ECS Southeast, LLP  Brownfields Assessment Report and Receptor Survey, dated September 11, 2023, prepared by ECS Southeast, LLP These assessments identified volatile organic compounds (VOCs) including tetrachloroethylene (PCE) and trichloroethylene (TCE) in site groundwater at concentrations above residential groundwater vapor intrusion screening levels (VISLs). Impacts were attributed to former on-site and off-site dry-cleaning operations. Soil gas samples collected at the site identified several VOCs exceeding residential soil gas VISLs including TCE, PCE, chloroform, and 1,3-butadiene. The highest concentration of TCE identified in site soil gas was 528 micrograms per cubic meter (µg/m3) in the exterior soil gas sample SG-2, compared to its residential VISL of 14 µg/m3. The highest concentration of PCE identified in site soil gas was 64,100 µg/m3 in sub-slab soil gas sample SS-2, compared to its residential VISL of 280 µg/m3. Approximate sample locations overlaying redevelopment plans are shown on Figure 2. Assessment results indicated a vapor intrusion risk associated with the residential soil gas to indoor air pathway above NCDEQ’s risk thresholds. A VIMS is proposed to be included on the planned site building in anticipation of land use restrictions of the Brownfields Agreement. Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 3 1.2 System Overview and Objectives The objectives of the proposed VIMS are to satisfy anticipated land use restrictions and to reduce potential occupant exposure to volatile compounds originating from subsurface contamination in the site building to below NCDEQ’s risk thresholds. This will be achieved by installing vapor intrusion barriers beneath slabs to reduce upward migration of volatile contaminants while also providing a pathway for venting of soil gas from below building floor slabs to above-grade discharge locations, reducing the likelihood of soil gas containing hazardous chemicals from entering the occupied building spaces from the subsurface. 1.3 Proposed Development Overview The site will undergo redevelopment for multi-family residential apartment use, retail and commercial space, recreational amenities, green space, and a parking garage. Excerpts from preliminary site development plans are included in Appendix C. The development will include 371 for-rent apartments and will not include townhomes. Details of the planned building that are relevant to the VIMS design are summarized in the table below. Table 1 - Building Summary Building Building Type Slab Type Stories Elevators Approx. Ground- Contact Footprint with Enclosed Space Above 1601 South Blvd Mixed retail/commercial and multi-family residential 5- and 7- inch thick conventional slab-on- grade 31 Stories Four 20,286 square feet (sf) The proposed mixed-use development will include one 30-story building. The ground floor will include retail/commercial space, a lobby, elevators, stairways, and a parking garage entrance ramp. Upper floors will include open-air parking on floors two through seven, residential amenities on floor eight, multi-family residential apartments on floors nine through twenty-nine, and a terrace with amenities and mechanical areas on the thirtieth Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 4 floor. The total building square footage including parking and amenities is approximately 532,726 sq ft. The building will be constructed with a slab-on-grade and pile-supported foundation with spread footings at load-bearing walls, shear walls, and around pile cap columns. The ground floor includes lobby/mail/leasing space, maintenance areas, offices, generator space, corridors, bike storage, a dog wash, and fire pump and backflow rooms. No residential dwellings are planned for the ground floor. Hallways and stairwells will be enclosed. An approximately 6,500 square foot area of the ground floor is planned as a slab leave-out/pour back area (Retail A and Retail B) which may be upfitted by commercial tenants and occupied after other areas of the building. Parking garage access will be provided from East Park Avenue. The garage ramp will begin immediately upon entry into the building structure, creating vertical walls in contact with soil. No other vertical walls in the structure will be in contact with soil, except elevator pits. The building includes four elevators with elevator pits that extend below grade. Thickened slabs and slab steps are planned inside the slab perimeter which will serve as obstructions to vapor transport below the slab. 1.4 Contact Information As specified in the VIMS Design Submittal Requirements checklist, relevant contact information is provided below.  Prospective Developer – South End 1, LLC, Brian Bezanis, bbezanis@sterlingbay.com with copy to legalnotices@sterlingbay.com, (312) 566-4937  Brownfields Assessment Consultant – ECS Southeast, LLP, Scott Young, P.G., syoung1@ecslimited.com, (704) 525-5152  Vapor Intrusion Mitigation System Design Engineer – Hanley Environmental, PLLC, David Hanley, P.E., David.hanley@hanleyenvironmental.com, (704) 317-6970 Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 5  Vapor Intrusion Barrier Installation Contractor – to be determined– contact information will be provided to NCDEQ via email prior to construction.  Brownfields Project Manager – Bill Schmithorst, william.schmithorst@deq.nc.gov, (919) 707-8159 1.5 Certification This Vapor Intrusion Mitigation Plan has been certified by a North Carolina licensed Professional Engineer in accordance with 21 NCAC 56 .1103. The vapor intrusion mitigation system detailed herein is designed to mitigate intrusion of subsurface vapors into the subject buildings from known Brownfields Property contaminants in a manner that is in accordance with the most recent and applicable guidelines including, but not limited to, NCDEQ Department of Waste Management (DWM) Vapor Intrusion Guidance, Interstate Technology & Regulatory Council (ITRC) guidance, and American National Standards Institute (ANSI)/American Association of Radon Scientists and Technologists (AARST) standards. The sealing professional engineer below is satisfied that the design is fully protective of public health from known Brownfields Property contaminants. Use of specific guidance documents and design standards in development of this design is described in Section 2.0. This VIMS design requires implementation of the specified QA/QC procedures, pre- occupancy testing requirements, post-occupancy OM&M, and reporting procedures. Failure to implement these procedures and requirements may limit the system’s effectiveness. Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 6 As specified in the Brownfields Property Reuse Act §130A-310.32, implementation of a brownfields agreement will result in use of the property “fully protecting public health and the environment instead of being remediated to unrestricted use standards”. Accordingly, risk-based standards will be used in evaluating system effectiveness and the proposed VIMS is designed to reduce risk to residential receptors to below the NCDEQ Brownfields Redevelopment Section’s acceptable risk thresholds (incremental lifetime cancer risk of 10-4 and hazard index of 1) for contributions of known volatile compounds originating from subsurface contamination. These risk thresholds are considered “fully protective of public health” in the context of this Brownfields property. This Vapor Intrusion Mitigation Plan is subject to compliance review by the NCDEQ Brownfields Redevelopment Section. Minor modifications to the VIMS design (e.g., use of equivalent products/materials, minor modifications to system component locations) will be approved by the engineer and documented in as-built drawings (Section 7.0). Significant alterations to the VIMS design (e.g., changes to barrier type or areas to receive barriers, or the number of monitoring points) will be submitted to the NCDEQ Brownfields Redevelopment Section in a Vapor Intrusion Mitigation Plan Addendum for compliance review prior to implementation. 2.0 DESIGN BASIS 2.1 VIMS Design The VIMS design was developed in general accordance with design standards contained in Soil Gas Control Systems in New Construction of Buildings (ANSI/AARST, 2018), and also in consideration of guidance including the NCDEQ DWM Vapor Intrusion Guidance dated March 2018, and the ITRC Technical Resources for Vapor Intrusion Mitigation dated December 2020. System design drawings and construction specifications are included in Appendix D. The VIMS will provide soil gas control beneath ground-contact, enclosed areas within the proposed building by installing vapor intrusion barriers beneath slabs and on vertical Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 7 retaining walls to reduce migration of volatile contaminants into buildings while also providing a pathway for venting of soil gas from below the building floor slab to outside the building, reducing the likelihood of soil gas containing volatile contaminants from entering the occupied building space from the subsurface. The VIMS will operate as a passive system and will provide venting without the use of electric fans. If warranted based on performance monitoring data, the system (or portions of the system) may be converted to an active system in the future with the addition of electric fans. Contingency measures for conversion to an active system are included in Section 5.2. In general, VIMS components will include:  A vapor intrusion barrier system beneath the concrete slab consisting of an ethylene- vinyl alcohol copolymer base layer (20 mils) bonded to a 3 ounce/square yard geotextile (21 mils), with spray-applied asphaltic emulsion (ranging from 30 to 60 mil thickness) at seams, penetrations, and terminations. The specified barrier system is Geo-Seal® EV40s manufactured by EPRO Services, Inc.  A gas permeable layer beneath the vapor barrier consisting of at least 4 inches in depth of gravel or crushed stone, with the gas permeable layer enclosed on the top and sides by the concrete slab or footings.  A system of solid PVC piping and low-profile geosynthetic vapor collection vents within the gas permeable layer serving as inlets for soil gas and routing soil gas to exhaust vent pipes.  Soil gas exhaust vent pipes that transition from solid PVC piping to solid metal piping via an airtight coupling just above the slab to exhaust outlets on parking garage levels two and three.  Permanent vacuum monitoring points (VMPs) consisting of Vapor Pin Inserts with stainless steel vapor pins, caps, sleeves, and threaded stainless steel covers (manufactured by Vapor Pin Enterprises, Inc.). VMPs will be installed through the slab and vapor intrusion barrier and open to the gas permeable layer to allow for Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 8 measurement of pressure field extension and sub-slab soil gas sample collection from the gas permeable layer following slab installation.  Temporary VMPs consisting of PVC piping installed through the slab and vapor intrusion barrier and open to the gas permeable layer to allow for measurement of pressure field extension. Temporary VMPs will be abandoned with NCDEQ approval following pressure field extension testing. The table below summarizes system risers and VMPs for the building. Table 2 - VIMS Component Summary Approx. Ground- Contact Footprint with Enclosed Space Above Permanent VMPs Temporary VMPs Number of Riser Pipes 20,286 sq ft 5 4 2 The enclosed spaces on the ground floor near the parking garage entrance ramp create a partial vertical wall in direct contact with subsurface soil in an occupied space. A vapor intrusion barrier will be installed on the vertical concrete retaining walls in areas contacting enclosed building space. Barriers on below-grade components will be coordinated with the waterproofing engineer/architect, and an alternative, fully spray-applied vapor intrusion barrier which serves both waterproofing and chemical vapor intrusion resistance functions will be used on vertical retaining walls and on the base and sidewalls of elevator pits, as specified in the drawings and construction specifications. Exhaust vent pipes within unconditioned garage or outdoor areas will be insulated. The exhaust vent pipes will discharge out sidewalls of the open garage. Outlet discharge locations will meet the requirements of Soil Gas Control Systems in New Construction of Buildings (ANSI/AARST, 2018) related to restrictions on separation from openings in structures and people, and a permanent barrier will be installed within the garage to prevent public access within 10 feet of exhaust points. Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 9 Product information for VIMS barrier components is included in Appendix E. Specified barrier products were selected based on factors including thickness, chemical resistance to constituents of concern, concentrations of constituents of concern, puncture and tensile strength, and other factors. Other system design parameters (e.g., gas permeable layer design, type and placement of vapor collection vents, number and diameter of exhaust vent pipes, number and placement of VMPs) were based on portions of Soil Gas Control Systems In New Construction of Buildings (ANSI/AARST, 2018), the Standard Plan: Methane Hazard Mitigation (City of Los Angeles Department of Building and Safety, 2010), and/or professional experience with similar system designs. Based on available information, flammable concentrations of petroleum hydrocarbons, methane, or other vapors are not reasonably expected to be present, and an intrinsically safe system design is not proposed. 2.2 Considerations for Slab Pour-Back Areas Retail units A and B (identified in Figure 2) are planned to include slab leave-out/pour-back areas to allow for future upfitting by retail tenants which may occur after construction completion and occupancy of other areas of the building. It is anticipated that these areas will be occupied by one or more retail tenants who will build out the areas, including installation of subsurface utilities. During initial construction of the building, VIMS components including sub-slab piping, VMPs, and the vapor intrusion barrier will be installed as specified in the design drawings and construction specifications. The vapor intrusion barrier will be left exposed and a slab will not be poured until after tenant upfitting occurs. Initial construction will be performed under QA/QC procedures described in Section 3.0, as well as pre- and post-occupancy monitoring requirements described in Section 4.0 and 5.0. After vapor intrusion barrier installation and prior to upfitting and slab installation, the vapor intrusion barrier will be protected by limiting the building tenants and the general public from access. Plywood, gravel, or other protective measures will be installed if regular foot or equipment traffic over the barrier is expected. Signage will be posted in areas with exposed Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 10 barriers stating that caution should be used to avoid damaging the barrier, and that damage to the barrier should be reported to property management. If the vapor intrusion barrier is damaged, it must be repaired in accordance with the VIMS design drawings and construction specifications, and repairs will be subject to inspections as described in Section 3.0. Repairs will be reported to NCDEQ within 30 days of completion. The PD or its designee will provide notification to the NCDEQ Brownfields Redevelopment Section at least 48 business hours prior to tenant upfitting activities. During upfitting, penetrations or modifications to the vapor intrusion barrier or other VIMS components will be subject to QA/QC inspections as described in Section 3.0. Changes to the VIMS design associated with upfitting (e.g. relocation of VMPs) must be approved by the VIMS design engineer and NCDEQ. VIMS Installation Report Addendums will be prepared and submitted to NCDEQ following completion of retail area upfitting activities (Section 7.0). 3.0 QUALITY ASSURANCE/QUALITY CONTROL QA/QC procedures during installation will consist of inspections for compliance with design specifications. The following inspections will be performed during construction of the VIMS.  Sub-slab system components (e.g., gas permeable layer, soil gas inlets, and piping) will be inspected prior to being covered with a vapor intrusion barrier.  Placement of the vapor intrusion barrier will be inspected prior to pouring the concrete slabs. Smoke testing will be performed in accordance with vapor intrusion barrier manufacturer requirements.  Exhaust riser piping will be inspected prior to covering with drywall or other finishings.  Exhaust outlet locations will be inspected following installation. Inspection activities in slab leave-out/retail areas will be performed during initial construction and again during upfitting activities, as described in Section 2.2. Inspections will be performed and documented by personnel under direction of a North Carolina registered Professional Engineer, including photographs and field logs. Findings Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 11 that do not meet specifications will be re-inspected following correction. The PD or its designee will provide notification to the NCDEQ Brownfields Redevelopment Section at least 48 business hours prior to inspection. 4.0 PRE-OCCUPANCY EFFECTIVENESS TESTING Pre-occupancy testing will include pressure field extension testing, sub-slab soil gas sampling, and indoor air sampling as described in the following sections. Results of pre- occupancy testing will allow for evaluation of system effectiveness. The building shall not be occupied until approval is provided by NCDEQ based on pre-occupancy data. This requirement is separate from a certificate of occupancy provided by local code enforcement or other federal, state, or local occupancy authorizations. 4.1 Pressure Field Extension Testing Pressure field extension testing will be performed prior to occupancy of the building to verify that areas below the slab can be effectively influenced by the piping network. Pressure field extension testing will occur after slabs have been cast (except in slab pour-back/retail areas where testing will be performed prior to casting slabs). The evaluation will include connecting one or more fans to exhaust vent piping and measuring the resulting vacuum within the gas permeable layer at strategic locations. This testing will verify that no changes are needed for the design of exhaust vent piping assemblies. VMPs will be installed at strategic locations remotely distant from the exhaust vent pipe risers to evaluate effectiveness and consistency of vacuum propagation/soil gas transport beneath the building slab. One or more fans will be connected to riser pipes to apply a vacuum to the gas permeable layer and the pressure differential in nearby VMPs will be measured and recorded. The vacuum measurements will be evaluated for evidence of poor effectiveness and inconsistencies, and consideration of system modifications will be taken if such evidence is identified. Results of pre- or post-occupancy sampling may be considered when evaluating whether system modifications are warranted. Results of pressure field extension testing Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 12 may be used to select appropriate fans or blowers if future system activation is necessary (Section 5.2). A summary of pressure field extension testing activities and results will be presented in a VIMS Installation Report (Section 7.0). Additionally, preliminary results will be submitted to NCDEQ via email to obtain approval for temporary VMP abandonment. 4.2 Pre-Occupancy Sub-Slab Soil Gas Sampling Sub-slab soil gas samples will be collected from each of the five permanent VMPs following completion of VIMS installation and prior to building occupancy to evaluate system effectiveness from representative locations. In addition, one duplicate soil gas sample will be collected. If practical given construction and occupancy schedule constraints, pre-occupancy sampling will be performed with the HVAC systems on the ground floor operating to reflect expected interior conditions during occupancy. If the HVAC is not operating at the time of sampling, approval will be sought from NCDEQ before proceeding with sampling. Sampling will be performed pursuant to the NCDEQ Division of Waste Management Vapor Intrusion Guidance dated March 2018. Summa® canisters batch certified or individually certified by the laboratory will be used to collect sub-slab soil gas samples. Canisters will be inspected prior to sampling to verify that vacuum levels are within 10% of the level recorded by the laboratory prior to shipment. Canisters that do not meet this requirement will not be used. Dedicated tubing and flow controllers will be used at each sample collection point. Sample tubing (PFTE or nylon) will be used for sample collection by connecting the canister to each VMP. A short length of flexible Tygon® tubing may be used to connect the VMP to the sample tubing. Vacuum shut-in testing will be performed at each sample location by closing a valve on the sample train to prevent airflow from the VMP to the sample train. The valve on the summa canister will then be opened to confirm no vacuum losses occur in the sample train. Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 13 At least three sample train volumes of air will be purged from each sample point prior to sampling. During purging, the sample canister, tubing, and sample point will be surrounded with a shroud. The shroud will be filled with helium and measured using a Dielectric MGD 2002 helium detector (or similar). Purged vapors will be collected in Tedlar® bags using a syringe or lung box. The helium concentration of the vapor in the Tedlar® bags will be measured. If the concentration of helium in extracted vapors is greater than 10% of the helium concentration in the shroud, the sample train connections and sampling point seal will be reevaluated and improved, and additional helium testing will be performed until an acceptable result of less than 10% of the shroud helium concentration is measured. Following purging and leak testing, a soil gas sample will be collected into the sample canister at a flow rate less than or equal to 200 mL/min. A target final vacuum level of approximately 5 inches of mercury (in Hg) vacuum will be used. Canisters will not be allowed to reach zero vacuum. After sampling, the canisters will be transported under chain-of-custody protocols via courier to the laboratory for analysis. The laboratory will be requested to document the canister vacuum levels upon receipt on the chain of custody. The soil gas samples will be analyzed for VOCs by EPA Method TO-15 using the laboratory’s standard analyte list. The analytical laboratory will be instructed to report J-flag concentrations and will be requested to report results to laboratory method detection limits below the NCDEQ DWM Residential VISLs. The laboratory will also be requested to provide a Level II QA/QC data package. Analytical results will be compared to indoor air sampling analytical results (Section 4.3) to help evaluate system performance and identify indoor air constituents that may originate from background sources rather than vapor intrusion. Sampling activities will be summarized, and results will be presented, in a VIMS Installation Report (Section 7.0). 4.3 Pre-Occupancy Indoor Air Sampling Indoor air samples will be collected concurrently from areas approximately co-located with sub-slab soil gas samples as described in Section 4.2 (5 total indoor air sample locations). Prior to indoor air samples being collected, a survey will be conducted within and nearby the Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 14 building to identify materials or activities that may be potential above-slab sources of compounds of concern in indoor air. Construction materials, painting, and other construction activities necessarily involve chemicals. Sampling will be performed following completion of the VIMS installation, completion of ground floor building envelope enclosure, and prior to building occupancy. The indoor air sampling will be performed concurrently with the sub-slab soil gas samples to allow for comparison of corresponding indoor air and sub- slab soil gas sample results. Indoor air sampling will be completed prior to opening VMP caps for sub-slab soil gas sampling. Additionally, one background sample will be collected concurrently from an upwind, outdoor location, and one duplicate indoor air sample will be collected. Summa® canisters individually certified by the laboratory will be used to collect indoor air and background air samples. Canisters will be inspected prior to sampling to verify that vacuum levels are within 10% of the level recorded by the laboratory prior to shipment. Dedicated pressure gauges and flow controllers will be used at each sample collection point. Prior to sample collection, a building survey and pre-sampling evaluation will be conducted to document conditions and identify possible background sources. Samplers will be placed with the air intakes at approximately 4 to 6 feet above the floor or ground surface. Samplers will be placed at least five feet from exterior walls. The samples will be collected over a 24-hour sample period. Vacuum readings on the canisters will be recorded before and after sample collection. A target final vacuum level of approximately 5 in Hg vacuum will be used. Canisters will not be allowed to reach zero vacuum. Weather conditions including relative humidity, temperature, atmospheric pressure, wind speed, and wind direction will be recorded from a nearby public weather station at the time of sampling. After sampling, the canisters will be transported under chain-of-custody protocols via courier to the laboratory for analysis. The samples will be analyzed for VOCs by EPA Method TO-15 for compounds previously detected in site soil, groundwater, and soil gas as listed in Appendix F. The analytical laboratory will be instructed to report J-flag concentrations and Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 15 will be requested to report results to laboratory method detection limits below the NCDEQ DWM Residential VISLs. The laboratory will also be requested to provide a Level II QA/QC data package. Analytical results will be input into the NCDEQ Risk Calculator to evaluate the indoor air for residential receptors, and results will be compared to NCDEQ’s acceptable risk thresholds (incremental lifetime cancer risk of 10-4 and hazard index of 1). Contingency decisions should be made based on risk calculations using indoor air data rather than sub-slab soil gas data to account for the presence of a VIMS, should only include contributions from compounds originating from subsurface vapor intrusion, and should exclude contributions from compounds originating from background sources, building materials, ambient air, or other sources. Risk calculations including compounds not originating from subsurface vapor intrusion will also be reported for reference purposes. Sampling activities will be summarized, and results will be presented, in the VIMS Installation Report (Section 7.0). 5.0 POST-OCCUPANCY EFFECTIVENESS TESTING Post-occupancy monitoring includes sub-slab soil gas and indoor air. If indoor air monitoring indicates that the VIMS cannot provide effective vapor intrusion mitigation in a building passively, contingency measures for system activation are provided. 5.1 Post-Occupancy Monitoring Requirements Sub-slab soil gas and indoor air sampling will be performed on a semi-annual basis following building occupancy. Initial post-occupancy sampling will be performed approximately six months after pre-occupancy sample collection in order to evaluate site conditions under varied weather/heating and cooling conditions. Samples will be collected and analyzed following the procedures described in Sections 4.2 and 4.3. Sampling activities will be summarized, and results will be presented, in VIMS Post-Occupancy Monitoring Reports, which will be submitted to the NCDEQ Brownfields Redevelopment Section within approximately two months of sample collection. Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 16 One indoor air sample will be collected from each separate retail pour-back area before the unit is occupied. Samples will be collected and analyzed following the procedures described in Section 4.3, and sample results will be submitted to NCDEQ for review and approval. Following four rounds of semi-annual sampling (i.e., one pre-occupancy and three post- occupancy sampling events), a request to reduce or terminate sampling may be submitted to NCDEQ for approval. 5.2 Contingency for System Activation If monitoring indicates that the VIMS cannot provide effective vapor intrusion mitigation in the building passively, contingency measures will be implemented which provide for full or partial conversion of the system from a passive system to an active system. With an active system, electric fans will be used to place a vacuum on one or more exhaust vent pipes to depressurize the sub-slab relative to indoor air. If pre- or post-occupancy monitoring activities and possible subsequent evaluations indicate that NCDEQ’s acceptable risk thresholds for indoor air are exceeded for residential receptors (incremental lifetime cancer risk of 10-4 and hazard index of 1), or if the indoor air TCE concentration originating from subsurface sources exceeds NCDEQ’s residential TCE indoor air inhalation immediate action level (2.1 µg/m3) with the VIMS operating passively in accordance with this Vapor Intrusion Mitigation Plan, system activation will be required. Contingency decisions should be made based on risk calculations using indoor air data rather than sub-slab soil gas data to account for the presence of a VIMS, should only include contributions from compounds originating from subsurface vapor intrusion, and should exclude contributions from compounds originating from background sources, building materials, ambient air, or other sources. NCDEQ shall be notified when system activation is planned. To implement system activation, electric fans will be installed on one or more riser pipes. Locations for fan installation are specified in the VIMS design drawings, and electrical connections to power the fans will be Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 17 installed as part of initial system construction. Fans will be selected using data collected during pressure field extension testing, along with an audible/visual/or telemetric alarm providing notification of fan failure or low vacuum in the riser pipes. Following fan startup, sub-slab vacuum influence will be verified from existing VMPs, and a minimum pressure differential of 0.016 in w.c. (4 pascals) will be used as an acceptable performance criterion. An additional round of sub-slab soil gas and indoor air sampling will be performed using procedures from Section 4.2 and 4.3, and results will be used to evaluate system performance. Analytical results, pressure differential readings, and revised as-built drawings will be certified by a North Carolina licensed Professional Engineer and provided to the NCDEQ Brownfields Redevelopment Section following receipt of analytical data. Sub-slab pressure differential measurements will continue to be performed on a monthly basis for at least 12 months, at which time a request to reduce or terminate monitoring may be submitted to NCDEQ for approval. 6.0 FUTURE TENANTS & BUILDING USES Performance of the VIMS requires continued adherence to the system OM&M requirements from future owners and property managers. Notification of the presence and requirements of the systems must be given to building property management and commercial tenants by the owner, and future owners and commercial tenants should be made aware of system requirements. Building modifications should not alter system components (e.g., vapor intrusion barrier, VMPs, riser pipes) without approval from a Professional Engineer. If the vapor intrusion barrier is exposed or penetrated (e.g., for installation of sub-slab utilities), approval from a Professional Engineer is required. Approved changes to system components should be conducted under the QA/QC requirements described in Section 3.0. System changes should be documented in revised as-built drawings. Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 18 7.0 REPORTING Documentation of construction, deviations from the design, and information on OM&M of the VIMS will be presented in a VIMS Installation Report. The VIMS Installation Report which will include the following components:  A description of the VIMS components and objectives;  A summary of construction QA/QC activities including inspection records;  Results and evaluation of pre-occupancy testing;  As-built drawings documenting the final locations and construction details of the VIMS components;  System operation and maintenance requirements;  System monitoring requirements; and,  Certification by a North Carolina Professional Engineer confirming that the engineer is satisfied the VIMS was installed per the DEQ-approved design. If any deviations from the system design were necessary during installation, then the report will include details on deviations, as well as the engineer’s seal certifying the VIMS, as installed, was installed in such a manner to meet design objectives. Occupancy in the building will not occur without prior written NCDEQ approval. Analytical results from pre-occupancy sampling may be submitted to NCDEQ Brownfields Redevelopment Section as soon as the results are available to expediate the occupancy consideration. VIMS Installation Report Addendums will be prepared following completion of retail area upfitting activities which will describe QA/QC, pre-occupancy monitoring, and as-built information for the slab leave-out/retail areas. 8.0 DESIGN SUBMITTAL EXHIBITS A site vicinity map is included as Figure 1. Site figures including historical sampling locations and summaries of analytical data are included in Appendix B. Site redevelopment plans are Vapor Intrusion Mitigation Plan 1601 South Boulevard/McCorkles Cleaners Brownfields Property 19 included in Appendix C. Product data sheets for system components are included in Appendix E. 9.0 SPECIAL CONSIDERATIONS FOR RETROFITS No retrofits of existing buildings are included in this project; therefore, this section is not applicable. 10.0 REFERENCES American National Standards Institute/ American Association of Radon Scientists and Technologists, Soil Gas Control Systems In New Construction of Buildings, CC-1000 2018, dated 2018. City of Los Angeles, Standard Plan: Methane Hazard Mitigation, Revised February 10, 2010. ECS Southeast, LLP, Environmental Assessment Services Report, South Boulevard Properties (aka McCorkles Cleaners Brownfields Project), April 18, 2023. ECS Southeast, LLP, Brownfields Assessment Report and Receptor Survey, 1601 South Boulevard Site, September 11, 2023. Interstate Technology Regulatory Council Vapor Intrusion Mitigation Training Team, Technical Resources for Vapor Mitigation Training, December 2020. NCDEQ Division of Waste Management Vapor Intrusion Guidance dated March 2018. FIGURES Site109/11/23PJ23045NAH0Figure No.DateProject No.Drawn ByRevision No.Title and ProjectNotes: 1. Top og rap hi c im a ge obtaine d f rom U nite d St ate s G eol ogi calServi ce s (U SG S) onlin e inte rfa c e m an ag ed b y th e U SG SNational Geosp ati al P r og ram (NGP) d ated Au gu st 30, 2 02 3.HANLEY ENVIRONMENTAL, PLLC323 MANNING DRIVECHARLOTTE, NORTH CAROLINANC LICENSE P-2407Site Location Map1601 South Boulevard/McCorkles CleanersBrownfields Property1601-1617 South Boulevard and 1612 Cleveland AvenueCharlotte, North CarolinaLegendWESN1,0002,000 FTSubject Prop e r t y Bound a ry SS-1SS-2SS-3TW-1TW-2TW-4TW-3SB-9SB-7E-2P-2SB-8E-1P-3SB-4SB-2P-1SB-1DP-2SB-5DP-1SB-3/SG-1SB-6/SG-2So u t h B o u l e v a r d East Park AvenueLegendNotes:1.Archit e ct ural pl an b a c kgr ou nd pr ep are d b y Littl e Di v er sifi ed Arc hit ectur al Consulti ng d at ed S eptem ber 29, 20 23.2.Histori c al sam pl e lo c atio n s g e oref ere n ce d from ECS So ut he a st, L LC report fig ure s.WESN30 ft15 ftSubject Pro p ert y Bo u nd ar y 210/18/23PJ23027NAH0Figure No.DateProject No.Drawn ByRevision No.Title and ProjectHANLEY ENVIRONMENTAL, PLLC323 MANNING DRIVECHARLOTTE, NORTH CAROLINANC LICENSE P-2407Historical Sample Locations OverlayingRedevelopment Plans1601 South Boulevard/McCorkles Cleaners Brownfields Property1601-1617 South Boulevard and 1612 Cleveland AvenueCharlotte, North CarolinaHistori c al S oil S ampl e L o cati o n (a ppr o xim at e)Histori c al S oil S ampl e a n d E xte ri or S oil G a s S am ple Lo c atio n ( ap pro ximate)Histori c al Gro un dw at er S am ple Lo c atio n ( ap pro ximate)Histori c al S u b-Sl ab S oil Ga s S ample L o cati on (a ppr o xim ate ) APPENDIX A VIMS Design Submittal Requirements Checklist DRAFT VIMS Design Checklist Version 1, February 2023 DRAFT Vapor Intrusion Mitigation System (VIMS) Design Submittal Requirements NCDEQ Brownfields Redevelopment Section– February 2023 To more efficiently process and approve VIMS designs, the Brownfields Redevelopment Section has standardized the format for design submittals. We have generated a checklist to allow for ease in submittal by the prospective developer’s consultant and the Brownfields Redevelopment Section’s completeness review. The checklist below outlines the minimum requirements and submittal format under the Brownfields Redevelopment Section for VIMS system design considerations and reporting. All VIMS design submittals to the Brownfields Redevelopment Section must include this completed checklist in this required format. Strictly adhering to these design submittal requirements will allow DEQ to minimize its review time for the design and the scope of performance and pre-occupancy sampling wherever possible. However, if these requirements are not followed fully, DEQ will require a more extensive and on-going sampling protocol to ensure that the VIMS is fully protective of public health. For the purposes of these requirements, PE shall mean a Professional Engineer licensed in North Carolina. The benefits of following these requirements include: - Significant Professional Engineering design discretion by a PE as to the VIMS design; - Minimal turnaround time as the Brownfields Redevelopment Section review will consist of a completeness check rather than a detailed design review; - Implementation of the DWM Minimum Mitigation and Sampling Requirements for Reuse for pre- and post-occupancy sampling location and frequency minimization, and the lowest possible frequency of pre-/post-occupancy sampling to confirm system efficacy, at DEQ’s discretion; and - Potential reduction in long-term monitoring requirements and costs. If these requirements are not followed, and the VIMS design fails a completeness check: - Significant delays and associated costs may be incurred as DEQ conducts an in-depth review; - Subsequent design modifications and costs of delay associated with multiple review iterations; and - The establishment of extensive ongoing sampling requirements to ensure adequate system performance and public health protection. Please note that this VIMS design submittal is not the end of communication with the Brownfields Redevelopment Section. Best practices for successful project completion and avoiding installation/construction delays include maintaining close coordination and consultation with the Brownfields Redevelopment Section between the PD, VIMS contractors, and all general contractors for the installation of the design. This will avoid costly construction delays and installation issues that would trigger additional monitoring requirements that otherwise would not be necessary. It is important that significant advance notification of schedules, and subsequent rescheduling as it occurs, for the following activities (at a minimum) is provided to the Brownfields Redevelopment Section: - Project construction; - Design modification/addenda; - Installation; - Performance testing; and - Inspections See comments in red along left margin. 2 VIMS Design Checklist Version 1, February 2023 Note: The format below should be followed verbatim in its entirety in the VIMS design submittal to satisfy and facilitate the completeness review performed by the DEQ Brownfields Redevelopment Section. In addition, this document is to be completed and submitted as a checklist along with the design to ensure the necessary elements are addressed in the design. Section 1 - Introduction Provide a brief background of the Brownfields Property and basis for installing a VIMS (e.g. off-site migration of contaminants, on-site releases, chlorinated solvents, pre-emptive approach for residential redevelopment, etc.). Document the type of foundation design required by construction plans (e.g. waffled construction, ground floor post-tension cabling, build-to-suit construction, or other unique construction plans). Additional items to be included in the VIMS design submittal must include: ☐ Brownfield Project ID number, Parcel numbers, address(es), site history, approximate acreage of site, and contact information for the developer, consultant, VIMS installation contractor, and Brownfields Project Manager. ☐ If vapor mitigation is not proposed for all buildings (new, existing, or partial building), provide a risk-based justification for why mitigation is not needed for all buildings. Include discussion of the DWM Minimum Mitigation and Sampling Requirements for Reuse sampling requirements for occupancy. Limited building mitigation requests are subject to Brownfields review and approval. ☐ Discussion of proposed site redevelopment (e.g., townhomes, apartments, commercial, mixed-use, retail, etc.), and general layout of building(s) - (e.g., garage on first floor, with living space on second and third floors, presence of elevators, former textile mill with ground floor and basement level apartments, podium parking first floor, 10 story apartment building with podium parking on first three floors, etc.). Include references to the following figures (to be included in the Figures section outlined below): ☐ Site vicinity map ☐ Figures detailing all existing and/or proposed buildings overlain on historical sampling locations/known impacts ☐ Figures detailing the approximate ground floor square footage, including square footage of area proposed for mitigation (if different), of relative buildings and their proposed use per floor. Include footprint of planned demolition or retention of existing buildings. ☐ Locations of thickened footers, separate slabs, etc. that may hinder communication between slab segments ☐ Locations of relevant mitigation features (including but not limited to extent of vapor barrier, suction lines, risers, extraction points, pressure monitoring points, etc.) ☐ Locations of vertical walls in contact with soils (and a statement regarding whether any such features exist or not) ☐ The Design and any figures as appropriate have a PE Seal using the following language: “The Vapor Intrusion Mitigation System (VIMS) detailed herein is designed to mitigate intrusion of subsurface vapors into the subject building from known Brownfields Property contaminants in a manner that is in accordance with the most recent and applicable guidelines including, but not limited to, DWM Vapor Intrusion Guidance, Interstate Technology & Regulatory Council (ITRC) guidance, and American National Standards Institute (ANSI)/American Appendix C and Appendix D, Section 1.3 Section 1.5 Appendix D, Section 1.3 and 2.0 Appendix D Appendix C and Appendix D, Section 1.3 Section 1.3 N/A; see Section 1.2 Sections 1.0, 1.1, and 1.4 Figure 1 Figure 2 3 VIMS Design Checklist Version 1, February 2023 Association of Radon Scientists and Technologists (AARST) standards. The sealing professional engineer below is satisfied that the design [add “and its installation” for use in an installation report] is [are] fully protective of public health from known Brownfields Property contaminants.” Note: If a VIMS is not installed for certain portions of a Brownfields Property due to open-air ‘podium’ construction or parking decks, a VIMS may still be required for features such as elevator shafts, stairwells, and/or areas with utility penetrations that exchange air with occupied areas. Confirmatory sampling of these areas and associated occupied spaces may be required during post construction/renovation. Section 2. Design Basis Specify which type(s) of VIMS is intended for the planned structures, selecting which is appropriate, and explaining the basis for the selection: ☐Passive System. Note for all passive systems, a mechanism/process shall be established (to be approved by DEQ) by which the system can be made active, which may include a reliance on information from pressure measurements, soil gas and/or indoor air sampling, or changes in site conditions. A passive system should be designed and installed such that the passive system is as effective as an active system at preventing vapor intrusion. ☐Active System. Note a pressure differential resulting in depressurization below the slab of 4 pascals or greater at remote extents of each VIMS area is considered sufficiently depressurized (low pressure readings such as 1 to 2 pascals may be acceptable if employed with continuous pressure measurement during varied HVAC situations, weather events, and climate for winter and summer months). An overview of the alarm system that informs appropriate parties in the event the system malfunctions should be included. Note: Pressure monitoring points are recommended to be placed at locations remotely distant from where each suction point transitions to below the slab in addition to locations positioned near each suction point and associated horizontal piping. If monitoring points are not installed at remote locations, future sampling requirements may necessitate installation of additional monitoring locations or an evaluation of indoor air quality. For all system designs, the following design specifications must be included as exhibits: ☐ Sub-slab Venting Construction Materials and Installation. Design specifications must be included as an exhibit (see Section 8 below). All piping, including above a roof line must be labeled at intervals no greater than 10 linear feet permanently labeled with “Vapor Intrusion Mitigation System” with contact information for questions or repairs. ☐ Membrane Vapor Barrier Construction Materials and Installation. Design specifications must be included as an exhibit (see Section 8 below). Particular attention should be paid to the design and diagrams for sealing barriers at slab penetrations and edges. Note: Brownfields Property contaminants of concern (COCs) must not be present in building materials. Note: If materials are proposed that are not specifically rated for chemical resistance to specific site contaminants of concern, this will have a bearing on DEQ’s determination of performance testing requirements following construction. Specification documentation should be provided for all materials utilized as part of the VIMS. Appendix D and Appendix E Appendix D and Appendix E Section 2.0 4 VIMS Design Checklist Version 1, February 2023 Note: All utility penetrations are required to include trench dams unless a risk-based justification is provided for why trench dams are not needed subject to Brownfields written approval. Include details on trench dam installation as part of system design. Section 3. Quality Assurance / Quality Control ☐ Details on planned inspections are required for all gravel & piping prior to installing the vapor barrier, and are required for all sections of the vapor barrier prior to pouring the slab. These inspections must be conducted by qualified personnel under the supervision of the design PE and include field logs and photographs. ☐ A statement committing to provide a minimum of 2 business days’ advance notification to the Brownfields Redevelopment Section prior to inspections should be included. ☐ Smoke Testing and/or Thickness (Coupon) Measurements: Smoke testing is strongly recommended for both roll-out and spray applied barriers. Coupon testing will be required on spray application barriers only. Note: Non-performance of adequate inspections or smoke testing will have a bearing on DEQ’s determination of performance testing requirements following construction. Section 4. Post-Construction / Pre-Occupancy Effectiveness Testing ☐ Discussion of Pilot/Influence Testing is required for passive and active systems prior to occupancy with the objective being to document that all areas below the slab can be effectively influenced by the current piping network. Testing details should include, at minimum: ☐ Pressure monitoring points: Note based on pilot testing results and review by the Brownfields Redevelopment Section, the number of pressure monitoring points installed for pilot testing may ultimately reduce the number of permanent pressure monitoring points. ☐ Pressure monitoring points are placed at locations that are demonstrated to be remotely distant from where each suction point transitions and are located at the extents of the area of influence to below the slab in addition to locations near each suction point and associated horizontal piping. ☐ Sub-slab vacuum monitoring and/or sample collection points: Note these should be installed PRIOR to installation of floor slab(s). Drilling through concrete slabs and VIMS barriers after a concrete slab is in place may result in significant issues regarding the sealing of the sampling point to the VI barrier once the concrete slab has been poured. ☐ A statement committing to provide a minimum of 2 business days’ advance notification to the Brownfields Redevelopment Section prior to inspections should be included. ☐ Discussion of pour back areas including: ☐ Protection of and testing following completion: Note if concrete pour back areas for future tenants are included in the VIMS design or if slab modifications are made in the future, communication testing will be required after completion of each of the following events: 1) in the event TCE is present, preventative measures implemented when the barrier is removed, 2) once the pour back area VI barrier has been installed, 3) following completion of tenant up-fit activities, 4) prior to pouring the concrete floor slab, and 5) following repair of any damage to the VI barrier. N/A Section 3.0 Appendix D, Section 2.0 Appendix D, Section 2.0 Appendix D, Section 2.0 Section 4.1 Section 3.0 Section 3.0 Section 3.0 Section 2.2 5 VIMS Design Checklist Version 1, February 2023 ☐ Commitment to DEQ notification of a minimum of 2 business days prior to the start of tenant up-fit activities. ☐ Discussion regarding sampling/protective measures that will be taken if a building is occupied during up-fit activities. Note: Section 3 (Quality Assurance/Quality Control) above will apply to all future pour backs and slab modifications; these requirements apply to all system or slab alterations regardless of the size of the altered area. If pour-back area communication testing is not deemed sufficient prior to floor slab being poured, this will result in the need for additional sampling. Alteration of pour back areas or alteration of slabs in the future may necessitate future sampling of the site buildings. ☐ Discussion of protection, access restrictions, and inspection of exposed systems (including pour back areas): During any time that the system is left exposed (i.e. without a concrete/wooden cover in place), protective measures must be implemented, as noted above, and scheduled inspections of the exposed system are required. In addition to the pre- occupancy testing, during the time that the system is left exposed, monitoring, including vapor intrusion assessment, will be conducted in the subject building including the pour back area. If PCE, TCE, and/or select daughter products are present at the Brownfields Property, indoor air sampling will be required. ☐ Discussion of pre-occupancy sub-slab and/or indoor air sampling in accordance with the DWM Minimum Mitigation and Sampling Requirements for Reuse. Note: Unlike the remainder of this document, which has significant PE discretion in design; soil gas/indoor air sampling frequency and locations is subject to the sole discretion of the DEQ Brownfields Redevelopment Section. Note: Pilot/Influence Testing, Soil Gas, and/or Indoor Air Sampling must be submitted to the Brownfields Redevelopment Section for conditional occupancy considerations as per standard Brownfields VI provisions. Section 5. Post-Occupancy Effectiveness Testing – Should be specified with the design submittal and not at a later date. ☐ Discussion of On-going Pressure Testing: Note this is required for active systems to be conducted on a monthly basis for the first year with collected information submitted to the Brownfields Redevelopment Section on a quarterly basis (or via telemetry data submittals on a basis as pre-approved by DEQ). Based on the first year of pressure readings, and with approval of the Brownfields Redevelopment Section, pressure testing may be collected quarterly (see below) and data would be submitted with the annual Land Use Restriction Update (LURU) following the first year of data collection. Note that the Brownfields Redevelopment Section utilizes a ‘sliding scale’ of pressure reading collection frequency vs. the stated depressurization goal or observed depressurization (e.g., if a VIMS is designed (or observed) to obtain a pressure differential less than 4 pascals, more frequent depressurization measurements will be necessary and may include continuous data logging for a DEQ-determined period of time; or an upgrade to the VIMS to increase pressure differentials may be necessary). ☐ Discussion of proposed post-occupancy sub slab vapor and/or indoor air sampling: Sampling is to be completed post occupancy and the data will be compared to applicable DEQ Section 5.1 N/A Sections 4.2 and 4.3 Section 2.2Section 2.2Section 2.2 Section 2.2 Section 2.2 Section 2.2 6 VIMS Design Checklist Version 1, February 2023 screening criteria. Include discussion of resampling in the event that impacts are identified above applicable screening criteria. Note: Unlike the remainder of this document, which has significant PE discretion in design; sub slab vapor/indoor air sampling frequency and locations is subject to the sole discretion of the DEQ Brownfields Redevelopment Section. Note: In addition to these requirements, townhomes remain subject to the sampling requirements outlined in the DEQ Brownfields Townhome Minimum Requirements located at www.ncbrownfields.org. Ensure that Townhome redevelopment has been approved by the NC DEQ Brownfields Redevelopment Section in advance of redevelopment planning. Section 6. Future Tenants & Building Uses ☐ This section must address plans to notify future tenants of the presence of a VIMS and to prevent future tenants or occupants from exposing/damaging the VIMS without the oversight of a qualified P.E. Note that if the VIMS is exposed (for installation of new utilities, etc.), the same inspection requirements and reporting as for initial installation is required. Section 7. Reporting This section must discuss reporting deliverables within 60 days following completion of initial post- construction testing as outlined in Sections 4 and 5 above and a commitment to include all of the following in the final deliverable: ☐ A report prepared and submitted to the Brownfields Redevelopment Section under PE seal ☐ Summary of the installation, QA/QC measures, and post-construction/pre-occupancy system effectiveness testing. ☐ A statement from the PE providing an opinion of whether the VIMS was delivered in a condition consistent with the VIMS design and objectives. Note: Certain components of these reporting requirements, including pressure measurements, sub slab vapor sampling, and indoor air sampling, can be conducted and reported under a N.C. licensed Professional Geologist seal. ☐ Appendices to include at minimum: ☐ as-built drawings (also signed/sealed by a PE); ☐ all inspection logs including photographs and field logs. Note that the inspection logs do not need to be addressed in the text of the report unless information pertinent to the operation of the VIMS was discovered; and ☐ An index of, and individual safety data sheets for, any materials used during construction that could contribute to background indoor air contamination. ☐ PE sealed statement regarding the system effectiveness verbatim as follows: “The Vapor Intrusion Mitigation System (VIMS) detailed herein is designed to mitigate intrusion of subsurface vapors into the subject building from known Brownfields Property contaminants in a manner that is in accordance with the most recent and applicable guidelines including, but not limited to, DWM Vapor Intrusion Guidance, Interstate Technology & Regulatory Council (ITRC) guidance, and American National Standards Institute (ANSI)/American Association of Radon Scientists and Technologists (AARST) standards. The sealing professional engineer below is satisfied that the design [add “and its installation” for use in an installation report] is [are] fully protective of public health from known Brownfields Property contaminants.” Section 7.0 Section 7.0 Section 7.0 Section 7.0 Section 7.0 Section 7.0 Section 6.0 Section 7.0 - As applicable to certification of system construction rather than system design 7 VIMS Design Checklist Version 1, February 2023 Section 8. Design Submittal Exhibits Drawings to be included: ☐ General Site Location Map (to include a scale and north arrow) ☐ Site Figure that includes: ☐ The Brownfields Property boundary and immediately adjacent properties or landmarks such as streets; ☐ Graphic scale and north arrow; ☐ Historical sampling locations and known impacts (groundwater, soil, soil-gas, subs-slab, indoor air, and if available on-site or adjacent surface water locations) relative to existing and proposed structures; and ☐ Reference to table(s) in the VIMS Plan where analytical results are provided. These results should be compared to the appropriate screening criteria (residential or non-residential IASL’s, etc.). ☐ Design Specifications: Sub-Slab Venting Construction Materials and Installation; Membrane Vapor Barrier Construction Materials and Installation ☐ Material Specification Sheets for all items associated with the VIMS (vapor barrier, piping, mastic, tape, sealants, cleaners, etc.) Section 9. Special Considerations for Retrofits The following details will need to be provided in advance to DEQ for its review for a planned retrofit of existing buildings: ☐ Complete explanation of subsurface structural conditions on all site buildings, including those buildings that are not proposed for mitigation but will remain on-site including but not limited to details on the presence or absence of the following: ☐ Basements/crawlspaces; ☐ Vertical walls in contact with soil; ☐ Details on slab thickness and underlying conditions (i.e. slab on gravel, slab on grade, slab over crawlspace, etc.); ☐ Details on number of slabs per building that are connected that have differing thicknesses or thickened footer separations or sub-walls that would create isolated slab areas for consideration, or would hinder overall VIMS influence; ☐ Obvious issues with slab integrity such as cracks or voids, etc.); ☐ Presence of sub-slab utility conduits, trenches, or tunnels that could act as preferential pathways and the need to mitigate (e.g. installation of trench dams, anti- seep collars, etc.); ☐ Sumps; ☐ Elevator pits; and ☐ Other applicable subsurface building features. ☐ Details on proposed sealing/repairs of obvious/existing concrete slab from minor caulking of floor cracks/expansion joints, and VIMS core drilled suction points, to possible VIMS saw cut trench sealing or specialized coatings for entire floor slab (e.g. Retro-CoatTM or other similar coatings). ☐ Details on radius of influence in pilot/communication testing planned. ☐ Existing buildings to remain as part of redevelopment and/or proposed buildings shown on the Site Plan should be accurate and complete. At a minimum, plans should provide the N/A N/A N/A N/A Appendix D Appendix E Appendix B Appendix B Appendix B Figure 1 Appendix B; Figure 2 8 VIMS Design Checklist Version 1, February 2023 following details: ☐ Detailed foundation plans - In addition to displaying piping network and proposed monitoring point locations, foundation plans should show all footers, grade beams, and other sub-slab features that could affect vacuum communication. This would also include sub-grade crawl spaces, basements, tunnels, walk-out basements, elevator pits, and other situations where soil is in contact with side walls of structure in addition to below the footprint of the building slab. Provide details on any vertical walls in contact with soil and the planned mitigation of such. ☐ Drawings shall be provided of each VIMS barrier sealing detail, including piping layout (transition from slotted PVC, terra vent, etc. to solid piping through grade beams for example), and examples of these detail drawings should be called out on VIMS layout drawing. When possible, drawings should be provided in color so that VIMS piping, extents of proposed vapor barrier, proposed sample/vacuum monitoring locations and other features can be easily distinguished. ☐ Detailed drawings of grade beams, thickened slabs, footers, and other sub-slab features that could affect VIMS influence must be clearly defined and easily discernable from existing or proposed interior walls that are above the floor slab (which would have no effect on vacuum influence below the slab). ☐ NOTE: Include references to any guidance/documents used or referenced by the PE during design of the VIMS. Useful Reference(s): Division of Waste Management (March 2018, Version 2) - “Vapor Intrusion Guidance” Note: this document also contains in Appendix H the “Brownfields Redevelopment Section Vapor Intrusion Mitigation System (VIMS) Design Submittal New Construction Minimum Requirements Checklist” https://deq.nc.gov/about/divisions/waste-management/waste-management-permit-guidance/dwm- vapor-intrusion-guidance Draft DWM Minimum Mitigation and Sampling Requirements for Reuse, (February 2023) Weblink to be added when final “North Carolina Brownfields Redevelopment Section Minimum Requirements for Townhome Developments” (May 2020) https://deq.nc.gov/about/divisions/waste-management/bf/statutes ITRC Guidance Website - “Technical Resources for Vapor Intrusion Mitigation” https://www.itrcweb.org/Guidance/ListDocuments?topicID=28&subTopicID=39 ANSI/AARST CC-1000, “Soil Gas Control Systems in New Construction of Buildings”. Note: CC-1000 includes companion guidance that is not part of the ANSI/AARST American National Standard Institute (ANSI), and may contain material that has not been subjected to public review or a consensus process. https://standards.aarst.org/CC-1000-2018/4/ Section 10.0 N/A N/A N/A APPENDIX B Historical Data Summary FIGURE 2SITE AERIAL MAP SOUTH BOULEVARD PROPERTY1601-1609 & 1619-1625 SOUTH BOULEVARD AND 1612 CLEVELAND AVENUECHARLOTTE, NORTH CAROLINAECS PROPOSAL NO. 49:35827P SOURCE: CHARLOTTE MECKLENBURG GIS WEBSITE ACCESSED FEBRUARY 15, 2022 SCALE: AS SHOWN APPROXIMATE SITE BOUNDARY LEGEND Former Drycleaners (REC) CC Dickson Location/Former Gas Station & Auto Repair (REC) Former Drycleaner/Former Gas Station/Current Auto Repair (REC) Former Drycleaner/Former Gas Station/Current Dilworth Auto Service (REC) Former Gas Station (REC) Former Drycleaner (REC) FIGURE 3SAMPLE LOCATION MAP SOUTH BOULEVARD PROPERTY1601-1617 SOUTH BOULEVARD &1612 CLEVELAND AVENUECHARLOTTE, NORTH CAROLINAECS PROJECT NOS. 49:15946-B & 49:15496-C SOURCE: CHARLOTTE MECKLENBURG GIS WEBSITE ACCESSED SEPTEMBER 6, 2022 SCALE: AS SHOWN APPROXIMATE SITE BOUNDARY LEGEND APPROXIMATE SOIL SAMPLE LOCATION APPROXIMATE SOIL GAS SAMPLE LOCATION APPROXIMATE GROUNDWATER SAMPLE LOCATION Proposed Building Footprints TW-3 TW-1 TW-2 TW-4 SB-9 SB-7 SB-6/SG-2 SB-8SB-3/SG-1 SB-4 SB-2 SB-1 SB-5 FIGURE 4GROUNDWATER CONTOUR MAP SOUTH BOULEVARD PROPERTY1601-1617 SOUTH BOULEVARD &1612 CLEVELAND AVENUECHARLOTTE, NORTH CAROLINAECS PROJECT NOS. 49:15946-B & 49:15496-C SOURCE: CHARLOTTE MECKLENBURG GIS WEBSITE ACCESSED SEPTEMBER 6, 2022 SCALE: AS SHOWN APPROXIMATE SITE BOUNDARY LEGEND APPROXIMATE SOIL SAMPLE LOCATION TW-1(733.71) TW-2 (732.79) TW-4 (733.73) 732.0 TW-3 (731.87) 732.5 733.0 733.0 733.5 733.5 Table 1 Monitoring Well Construction Details and Groundwater Elevation Data South Boulevard Properties 1601-1617 South Boulevard & 1612 Cleveland Avenue Charlotte, Mecklenburg County, North Carolina ECS Project Nos.: 49:15946-B & 49:15946-C Monitoring Well ID Installation Date Casing Depth (ft bgs) Screen Interval (x to y ft bgs) Total Depth (ft bgs) Date Measured TOC Elevation (ft AMSL) Depth-to- Water (ft BTOC) Groundwater Elevation (ft AMSL) TW-1 03/16/23 10.0 10.0 to 20.0 20.0 03/24/23 742.23 8.52 733.71 TW-2 03/16/23 10.0 10.0 to 20.0 20.0 03/24/23 744.41 11.62 732.79 TW-3 03/16/23 5.0 5.0 to 20.0 20.0 03/24/23 742.10 10.23 731.87 TW-4 03/16/23 5.0 5.0 to 20.0 20.0 03/24/23 743.10 9.37 733.73 Notes: ft bgs = feet below ground surface TOC = top of casing ft AMSL = feet above mean sea level ft BTOC = feet below top of casing Table 2Summary of Exterior Soil Gas Samples Analytical Results South Boulevard Properties 1601-1617 South Boulevard & 1612 Cleveland AvenueCharlotte, Mecklenburg County, North Carolina ECS Project Nos.: 49:15946-B & 49:15946-C Volatile Organic Compounds by EPA TO-15 AcetoneBenzene1,3-Butadiene2-Butanone (MEK)Carbon DisulfideCarbon TetrachlorideChloromethaneDichlorodifluoromethane(Freon 12)cis-1,2-Dichloroethenetrans-1,2-DichloroetheneEthanolEthylbenzeneEthyl acetate4-EthyltolueneHeptaneHexaneMethylene Chloride2-Propanol (Isopropanol)PropyleneStyreneTetrachloroetheneTolueneTrichloroetheneTrichlorofluoromethane(Freon 11)1,2,4-Trimethylbenzene2,2,4-TrimethylpentaneTotal XylenesResidential VISL NE 12 3.1 35,000 4,900 16 630 700 280 280 NE 37 490 NE 2,800 4,900 3,400 1,400 21,000 700 280 35,000 14 NE 420 NE 700 Sample ID Initial Laboratory Vacuum Reading (in Hg) Initial Sample Vacuum Reading (in Hg) Final Sample Vacuum Reading (in Hg) Sample Date SG-1 -30 -27.5 -5 03/17/23 44.9 11.9 34.3 6.40 9.90 0.649 J <0.213 1.95 <0.311 <0.267 38.5 2.18 0.461 J <0.384 18.3 52.5 <0.340 7.23 651 0.540 J 39.5 18.2 J 1.90 <0.460 0.613 J <0.621 4.43 SG-2 -30 -28 -5 03/17/23 66.1 3.26 7.4 2.84 J 3.33 <0.461 0.558 3.31 5.63 0.614 J 159 0.737 J 0.842 <0.384 2.74 9.52 1.53 58.0 118 0.344 J 26,800 7.04 528 <0.460 0.525 J 3.05 2.18 J SG-DUP*-30 -30 -5 03/17/23 25.2 2.50 2.30 J 2.98 J 2.76 <0.461 0.392 J 3.41 7.01 0.733 J 111 0.789 J 1.04 0.599 J 1.34 3.53 0.965 16.7 35.0 0.395 J 60,800 5.54 734 1.26 0.594 J 1.08 2.64 Notes: Results presented in micrograms per cubic meter (µg/m3) in Hg = inches of mercury Residential VISL = NCDEQ-DWM Residential Exterior Vapor Intrusion Screening Level (January 2023) Value to right of “<” symbol are laboratory method detection limits. Laboratory method reporting limits may be found in the laboratory report. * = SG-DUP sample is a duplicate sample of the SG-2 record sample. J = Estimated concentration detected between laboratory method detection limit and reporting limit NE = No Standard Established VALUE = concentration greater than the laboratory method detection limit VALUE = concentration greater than the Residential VISL Table 3Summary of Soil Samples Analytical Results South Boulevard Properties1601-1617 South Boulevard & 1612 Cleveland Avenue Charlotte, Mecklenburg County, North CarolinaECS Project Nos.: 49:15946-B & 49:15946-C VOCs by EPA Method 8260 Total Metals By EPA Methods 6010/7471/7199 Benzenen-Butylbenzene1,3-Dichlorobenzene1,4-DichlorobenzeneEthylbenzeneIsopropylbenzene(Cumene)Methylene Chloride4-Methyl-2-pentanone(MIBK)Naphthalenen-PropylbenzeneTetrachloroetheneToluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal XylenesArsenicBariumCadmiumTotal ChromiumTrivalent ChromiumHexavalent ChromiumLeadMercurySeleniumSilverProtection of Groundwater PSRG 0.01 4.5 NE 0.12 1.3 2.3 0.025 0.45 0.39 2.6 0.0063 8.3 12 11 9.9 5.8 580 3 ---360,000 3.8 270 1 2.1 3.4 Residential PSRG 1.2 780 NE 2.8 6.1 410 58 7,000 2.1 780 17 990 63 56 120 0.68 3,100 1.4 ---23,000 0.31 400 4.7 78 78 SB-1 03/16/23 2 - 5 0.0085 0.0052 J <0.0022 <0.0018 0.0095 0.0036 J 0.078 0.019 J 0.054 0.0058 J <0.0022 0.052 0.031 0.010 0.094 9.63 260 0.584 J 36.9 36.3 0.606 J 412 0.518 1.63 J 0.364 J SB-2 03/16/23 1.5 - 5 <0.0028 <0.0044 <0.0022 <0.0018 <0.0033 <0.0024 0.084 <0.0068 <0.0037 <0.0025 <0.0022 <0.0048 <0.0042 <0.0024 <0.0040 4.32 119 0.173 J 48.2 46.1 2.10 69.2 0.199 0.942 J <0.107 SB-3 03/16/23 1.5 - 5 <0.0027 <0.0043 0.0039 J 0.0037 J <0.0032 <0.0023 0.099 <0.0066 <0.0036 <0.0024 <0.0022 <0.0047 <0.0041 <0.0023 <0.0039 4.73 151 0.152 J 23.0 23.0 <0.319 39.6 0.0353 J 0.514 J <0.109 SB-4 03/16/23 1.5 - 5 <0.0027 <0.0043 <0.0021 <0.0018 <0.0032 <0.0023 0.092 <0.0066 <0.0036 <0.0024 <0.0022 <0.0047 <0.0041 <0.0023 <0.0039 8.60 143 1.04 J 38.0 38.0 <0.325 309 0.388 0.623 J <0.109 SB-5 03/16/23 1 - 5 <0.0028 <0.0044 <0.0021 <0.0018 <0.0032 <0.0024 0.040 0.0067 <0.0036 <0.0025 <0.0022 <0.0048 <0.0041 <0.0023 <0.0039 2.65 53.0 <0.113 34.7 34.7 <0.339 32.1 5.64 0.576 J <0.114 SB-6 03/16/23 1 - 5 <0.0030 <0.0047 <0.0023 <0.0020 <0.0035 <0.0026 0.077 <0.0073 <0.0040 <0.0027 <0.0024 <0.0052 <0.0045 <0.0025 <0.0043 2.51 22.2 <0.116 41.0 41.0 <0.344 12.7 <0.0244 0.774 J <0.117 SB-7 03/16/23 4 - 6 <0.0028 <0.0044 <0.0021 <0.0018 <0.0032 <0.0024 0.081 <0.0067 <0.0036 <0.0025 0.024 <0.0048 <0.0041 <0.0023 <0.0039 1.64 17.8 <0.111 37.3 37.3 <0.338 11.0 <0.0233 0.746 J <0.112 SB-DUP 03/16/23 4 - 6 <0.0029 <0.0046 <0.0023 <0.0019 <0.0034 <0.0025 0.081 <0.0070 <0.0038 <0.0026 0.0065 J <0.0050 <0.0043 <0.0024 <0.0041 1.21 J 11.6 <0.112 45.0 45.0 <0.334 9.81 <0.0235 0.605 J <0.113 SB-8 03/16/23 1.5 - 5 <0.0027 <0.0043 <0.0021 <0.0018 <0.0032 <0.0023 0.096 <0.0066 <0.0036 <0.0024 0.075 <0.0047 <0.0040 <0.0023 <0.0039 1.10 J 21.1 <0.126 105.0 104.2 0.764 J 8.83 0.0494 J 0.586 J <0.127 SB-9 03/16/23 1.5 - 5 <0.0037 <0.0059 <0.0029 <0.0024 <0.0043 <0.0032 0.12 <0.0090 <0.0049 <0.0033 0.027 <0.0064 <0.0055 <0.0031 <0.0053 0.816 J 16.0 <0.132 64.5 62.6 1.95 1.87 J <0.0278 0.358 J <0.134 SVOCs by EPA Method 8270 AcenaphtheneAcenaphthyleneAnthraceneBenzo(a)anthraceneBenzo(a)pyreneBenzo(b)fluorantheneBenzo(g,h,i)peryleneBenzo(k)fluorantheneChryseneDibenz(a,h)anthraceneFluorantheneFluoreneIndeno(1,2,3-cd)pyrene1-Methylnaphthalene2-MethylnaphthaleneNaphthalenePhenanthrenePyreneProtection of Groundwater PSRG 16 NE 1,300 0.35 0.12 1.2 NE 12 36 0.38 670 110 3.9 0.11 3.1 0.39 NE 440 Residential PSRG 720 NE 3,600 1.1 0.11 1.1 NE 11 110 0.11 480 480 1.1 18 48 2.1 NE 360 SB-1 03/16/23 2 - 5 <0.00082 <0.00091 0.041 0.16 0.16 0.22 0.082 0.081 0.19 0.025 0.31 0.013 J 0.083 0.27 0.36 0.27 0.24 0.29 SB-2 03/16/23 1.5 - 5 <0.00081 <0.00090 0.00096 J 0.0036 J 0.0029 J 0.0050 J <0.0017 0.0019 J 0.0038 J <0.0017 0.0080 J <0.00096 <0.0017 0.0020 J 0.0032 J 0.0023 J 0.0054 J 0.0068 J SB-3 03/16/23 1.5 - 5 <0.00081 0.0013 J 0.0017 J 0.0091 J 0.0099 J 0.017 0.0068 J 0.0064 J 0.011 J 0.0017 J 0.018 <0.00096 0.0065 J 0.0053 J 0.0062 J 0.0045 J 0.0087 J 0.016 SB-4 03/16/23 1.5 - 5 <0.00080 <0.0089 0.0015 J 0.0093 J 0.0096 J 0.015 0.0045 J 0.0058 J 0.011 J <0.0017 0.018 <0.00095 0.0050 J 0.014 0.017 0.013 J 0.012 J 0.016 SB-5 03/16/23 1 - 5 0.00084 J 0.0019 J 0.0050 J 0.021 0.018 0.027 0.0073 J 0.0099 J 0.022 0.0023 J 0.049 0.0011 J 0.0082 J 0.0030 J 0.0038 J 0.0037 J 0.017 0.042 SB-6 03/16/23 1 - 5 <0.00084 0.0019 J 0.0050 J 0.014 J 0.010 J 0.015 0.0038 J 0.0063 J 0.011 J <0.0018 0.033 <0.0010 0.0043 J <0.0010 <0.0024 0.0025 J 0.0076 J 0.028 SB-7 03/16/23 4 - 6 <0.00079 <0.00088 <0.00071 0.0043 J 0.0043 J 0.0089 J 0.0020 J 0.0035 J 0.0071 J <0.0016 0.017 <0.00094 0.0023 J <0.00096 <0.0023 <0.0014 0.0070 J 0.013 SB-DUP*03/16/23 4 - 6 0.0056 J 0.0010 J 0.0086 J 0.042 0.057 0.099 0.026 0.040 0.095 0.0075 J 0.26 0.0060 J 0.031 <0.0010 <0.0024 <0.0015 0.15 0.19 SB-8 03/16/23 1.5 - 5 0.030 <0.00086 0.093 0.031 0.27 0.38 0.11 0.14 0.31 0.036 0.64 0.027 0.14 0.0098 J 0.016 0.026 0.33 0.52 SB-9 03/16/23 1.5 - 5 <0.00096 <0.011 <0.00085 0.0022 J 0.0022 J 0.0047 J <0.0020 0.0016 J 0.0034 J <0.0020 0.0071 J <0.011 <0.0020 <0.0012 <0.0027 <0.0017 <0.0032 0.0055 J Notes: All results presented in milligrams per kilogram (mg/kg)Value to right of “<” symbol are laboratory method detection limits. Laboratory method reporting limits may be found in the laboratory report. Compounds not shown were not detected J = Estimated concentration detected between laboratory method reporting limit and detection limit VOCs = Volatile Organic Compounds VALUE = concentration greater than the laboratory method detection limit SVOCs = Semi-volatile Organic Compounds VALUE = concentration greater than the Protection of Groundwater PSRG PSRG = NCDEQ Preliminary Soil Remediation Goals (Janaury 2023)VALUE = concentration greater than the Residential PSRG * = SB-DUP is a duplicate sample of SB-7 sample Sample ID Sample Date Sample Depth(x to y ft bgs) Sample ID Sample Date Sample Depth (x to y ft bgs) Table 4Summary of Groundwater Samples Analytical Results South Boulevard Properties1601-1617 South Boulevard & 1612 Cleveland Avenue Charlotte, Mecklenburg County, North CarolinaECS Project Nos.: 49:15946-B & 49:15946-C VOCs by EPA Method 8260 SVOCs by EPA Method 8270 SIM Total RCRA Metals by EPA Method 6010/7470/7199 1,1-DichloroetheneTetrachloroetheneTrichloroethene2-MethylnaphthaleneNaphthaleneArsenicBariumCadmiumTotal ChromiumTrivalent ChromiumHexavalent ChromiumLeadMercurySeleniumSilverNC2LGWQS 350 0.7 3 30 6 10 700 2 10 NE NE 15 1 20 20 Residential Groundwater VISL 39 12 1.0 NE 4.6 NV NV NV NE NV NV NV 0.18 NV NE TW-1 03/24/23 0.55 J 34.6 14.5 <0.036 0.066 J 1.1 154 0.10 J 9.0 7.1 1.9 1.7 <0.12 0.74 J <0.070 TW-2 03/24/23 <0.35 <0.29 <0.38 <0.039 <0.067 1.4 26.7 <0.060 17.0 5.0 12.0 0.51 J <0.12 2.8 <0.070 TW-DUP*03/24/23 <0.35 <0.29 <0.38 <0.036 <0.063 1.5 32.2 <0.060 17.6 5.6 12.0 0.63 J <0.12 2.9 <0.070 TW-3 03/24/23 <0.35 1.3 <0.38 0.052 J <0.067 1.9 39.4 0.21 5.6 4.8 0.76 3.0 <0.12 1.1 J <0.070 TW-4 03/24/23 <0.35 1.2 <0.38 0.041 J <0.067 1.7 50.1 0.23 6.9 6.6 0.32 2.3 <0.12 0.94 J <0.070 Dissolved RCRA Metals by EPA Method 6010/7470/7199 ArsenicBariumCadmiumTotal ChromiumLeadMercurySeleniumSilverNC2LGWQS 10 700 2 10 15 1 20 20 Residential Groundwater VISL NV NV NV NE NV 0.18 NV NE TW-1 03/24/23 0.20 J 103 0.090 J 3.5 <0.077 <0.12 0.29 J <0.070 TW-2 03/24/23 1.2 19.6 <0.060 16.6 <0.077 <0.12 2.7 <0.070 TW-DUP*03/24/23 1.2 21.5 <0.060 16.0 0.085 J <0.12 2.8 <0.070 TW-3 03/24/23 1.5 29.3 0.20 J 0.96 J 0.18 J <0.12 1.0 J <0.070 TW-4 03/24/23 1.5 31.5 0.20 1.1 0.21 J <0.12 0.96 J <0.070 Notes: All results presented in micrograms per liter (µg/L) Compounds not shown were not detected VOCs = Volatile Organic Compounds SVOCs = Semi-volatile Organic Compounds NC2LGWQS = North Carolina 2L Groundwater Quality Standards (April 2022) Residential Groundwater VISL = NCDEQ Residential Groundwater Vapor Instrusion Screening Level (Janaury 2023) Value to right of “<” symbol are laboratory method detection limits. Laboratory method reporting limits may be found in the laboraotry report. * = TW-DUP is a duplicate sample of the TW-2 record sample J = Estimated concentration detected between laboratory method reporting limit and detection limit NE = Not established NV = Not volatile VALUE = concentration greater than the laboratory method reporting limit VALUE = concentration greater than the NC2LGWQS VALUE = concentration greater than the Residential Groundwater VISL Sample DateSample ID Sample ID Sample Date FIGURE 3CURRENT SAMPLE LOCATIONS MAP 1601 SOUTH BOUELVARD PROPERTY1601 SOUTH BOULEVARDCHARLOTTE, NORTH CAROLINA ECS PROJECT NO. 49:15946-E SOURCE: MECKLENBURG COUNTY GIS WEBSITE ACCESSED JUNE 20, 2023 SCALE: AS SHOWN APPROXIMATE SITE BOUNDARY LEGEND APPROXIMATE SOIL SAMPLE LOCATION APPROXIMATE SUB-SLAB SOIL GAS SAMPLE LOCATION APPROXIMATE PROPOSED BUILDING FOOTPRINT SS-1/SS-DUP SS-2 SS-3 P-1 P-2/SB-DUP E-1 E-2 P-3 DP-1 DP-2 Table 1 Summary of Sub-Slab Soil Gas Samples Analytical Results 1601 South Boulevard Site 1601-1617 South Boulevard & 1612 Cleveland Avenue Charlotte, Mecklenburg County, North Carolina ECS Project Nos.: 49:15946-E Sample ID SS-1 SS-DUP*SS-2 SS-3 Initial Laboratory Vacuum Reading (in Hg)-30 -30 -30 -30 Initial Sample Vacuum Reading (in Hg)-29 -26 -30 -28 Final Sample Vacuum Reading (in Hg)-5 -5 -5 -5 Sample Date 08/01/23 08/01/23 08/01/23 08/01/23 Acetone 51.3 40.4 36.6 2,470 NE Benzene 0.738 0.648 4.44 5.81 12 2-Butanone (MEK)7.22 5.54 7.34 175 35,000 Carbon Disulfide 3.67 3.42 1.23 1.20 4,900 Chloroform 1.92 <0.349 8.47 <0.349 4.1 Chloromethane 1.11 1.23 0.925 0.636 630 Cyclohexane 5.75 1.36 <0.259 3.40 42,000 Dichlorodifluoromethane (Freon 12)5.64 <0.678 3.96 1.72 700 Ethanol 26.0 26.8 27.5 402 NE Ethylbenzene 0.767 J 0.715 J 1.67 30.1 37 4-Ethyltoluene <0.384 0.488 J 0.425 J 2.13 NE Heptane 0.622 J <0.425 2.28 2.87 2,800 Hexane 1.08 J <0.726 3.60 3.18 4,900 2-Hexanone (MBK)2.35 J <0.544 <0.544 38.5 210 Methylene Chloride 1.29 <0.340 <0.340 <0.340 3,400 4-Methyl-2-pentanone (MIBK)1.41 J <0.313 0.807 J 29.4 21,000 Methyl tert butyl ether <0.233 <0.233 <0.233 3.05 360 2-Propanol (Isopropanol)6.93 7.13 4.84 204 1,400 Propylene <0.160 <0.160 <0.160 10.8 21,000 Styrene 1.13 0.476 J 2.04 26.2 700 Tetrachloroethene 740 616 64,100 141 280 Toluene 3.19 <0.328 5.05 38.8 35,000 1,1,1-Trichloroethane <0.400 <0.400 1.16 <0.400 35,000 Trichloroethene 1.37 0.873 J 235 2.03 14 Trichlorofluoromethane (Freon 11)1.49 1.33 1.99 1.85 NE 1,1,2-Trichlorotrifluoroethane 0.730 J <0.608 1.43 J <0.608 35,000 1,2,4-Trimethylbenzene 1.14 <0.375 2.29 8.39 420 1,3,5-Trimethylbenzene <0.382 <0.382 0.746 J 4.54 420 2,2,4-Trimethylpentane <0.621 <0.621 0.710 J 24.2 NE Total Xylenes 3.41 1.86 J 5.25 38.6 700 Notes: Results presented in micrograms per cubic meter (µg/m3) in Hg = inches of mercury Residential VISL = NCDEQ-DWM Residential Exterior Vapor Intrusion Screening Level (July 2023) * = SS-DUP sample is a duplicate sample of the SS-1 record sample. NE = No Standard Established VALUE = concentration greater than the laboratory method reporting limit VALUE = concentration greater than the Residential VISL Residential VISL Volatile Organic Compounds by EPA TO-15 Table 2 Summary of Soil Samples Analytical Results South Boulevard Properties 1601-1617 South Boulevard & 1612 Cleveland Avenue Charlotte, Mecklenburg County, North Carolina ECS Project Nos.: 49:15946-E SB-DUP*DP-1 DP-2 08/04/23 08/04/23 08/04/23 08/04/23 08/04/23 08/04/23 08/04/23 08/04/23 08/04/23 08/04/23 08/04/23 08/04/23 08/04/23 5 - 10 10 - 15 5 - 10 10 - 15 5 - 10 10 - 15 5 - 10 10 - 15 5 - 10 5 - 10 10 - 15 0 - 5 0 - 5 Acetone 0.093 J <0.051 <0.049 <0.067 <0.056 <0.048 <0.062 <0.070 <0.072 <0.039 <0.045 <0.047 <0.056 25 14,000 Benzene 0.0079 <0.0032 <0.0030 <0.0042 <0.0035 <0.0030 <0.0038 <0.0043 <0.0045 <0.0024 <0.0028 <0.0029 <0.0035 0.01 1.2 2-Butanone (MEK)0.046 J <0.038 <0.036 <0.050 <0.042 <0.036 <0.046 <0.052 <0.054 <0.029 <0.034 <0.035 <0.042 17 5,500 Chloromethane <0.0066 <0.0067 <0.0064 <0.0088 <0.0074 <0.0063 <0.0081 <0.0092 0.032 <0.0051 <0.0059 <0.0062 <0.0073 0.015 23 Methylene Chloride <0.022 0.024 J <0.021 <0.029 <0.024 <0.021 <0.026 <0.030 <0.031 <0.017 <0.019 <0.020 <0.024 0.025 58 Naphthalene 0.26 0.0070 J <0.0040 <0.0055 <0.0046 <0.0040 <0.0051 <0.0057 <0.0059 0.0066 <0.0037 <0.0039 <0.0046 0.39 2.1 Tetrachloroethene 0.12 <0.0025 0.043 0.021 <0.0028 <0.0024 <0.0031 <0.0034 <0.0036 0.042 <0.0022 <0.0023 0.0064 J 0.0063 17 Toluene 0.0074 J <0.0055 <0.0052 <0.0072 <0.0061 <0.0052 <0.0067 <0.0075 <0.0078 <0.0042 <0.0049 <0.0051 <0.0060 8.3 990 1,2,4-Trimethylbenzene 0.037 <0.0047 <0.0045 <0.0062 <0.0052 <0.0045 <0.0057 <0.0065 <0.0067 <0.0036 <0.0042 <0.0044 <0.0052 12 63 Total Xylenes <0.0045 <0.0046 <0.0043 <0.0060 <0.0050 <0.0043 <0.0055 0.023 <0.0064 <0.0034 <0.0040 <0.0042 <0.0050 9.9 120 Acenaphthene 0.64 <0.15 <0.16 <0.17 <0.14 <0.16 <0.17 <0.18 <0.19 2.3 <0.15 <0.15 <0.16 16 720 Anthracene 0.81 <0.14 <0.15 <0.16 <0.13 <0.15 <0.16 <0.21 <0.17 3.5 <0.14 <0.14 <0.15 1,300 3,600 Benzo(a)anthracene 1.6 <0.15 0.15 J <0.16 <0.14 <0.15 <0.16 <0.18 <0.18 5.5 <0.14 <0.14 <0.15 0.35 1.1 Benzo(a)pyrene 1.7 <0.15 0.17 J <0.17 <0.14 <0.15 <0.17 <0.18 <0.18 5.7 <0.15 <0.15 <0.16 0.12 0.11 Benzo(b)fluoranthene 2.4 <0.15 0.26 J <0.16 <0.14 <0.15 0.25 J <0.18 <0.18 6.9 <0.14 <0.14 <0.15 1.2 1.1 Benzo(g,h,i)perylene 1.1 <0.17 <0.17 <0.19 <0.16 <0.17 <0.19 <0.20 <0.21 3.8 <0.17 <0.16 <0.17 NE NE Benzo(k)fluoranthene 0.88 <0.15 <0.16 <0.17 <0.14 <0.16 <0.17 <0.18 <0.19 2.7 <0.15 <0.15 <0.16 12 11 Butylbenzylphthalate 47 <0.18 <0.19 <0.21 <0.17 <0.19 <0.21 <0.22 <0.22 <0.17 <0.18 <0.18 <0.19 290 290 Chrysene 1.7 <0.16 0.22 J <0.18 <0.15 <0.16 0.20 J <0.19 <0.19 5.5 <0.16 <0.15 <0.16 36 110 Dibenz(a,h)anthracene 0.31 J <0.17 <0.17 <0.19 <0.16 <0.17 <0.19 <0.20 <0.20 0.97 <0.17 <0.16 <0.17 0.38 0.11 Dibenzofuran 0.24 J <0.16 <0.16 <0.18 <0.15 <0.16 <0.18 <0.19 <0.19 0.90 <0.16 <0.15 <0.16 10 16 bis(2-Ethylhexyl)phthalate 0.22 J <0.17 <0.17 <0.19 <0.16 <0.17 <01.9 <0.20 <0.21 <0.15 <0.17 <0.16 <0.17 14 39 Fluoranthene 3.9 <0.15 0.53 <0.17 <0.14 <0.15 0.39 J <0.18 <0.18 11.2 <0.15 <0.15 <0.15 670 480 Fluorene 0.56 <0.15 <0.16 <0.17 <0.14 <0.16 <0.17 <0.18 <0.19 1.7 <0.15 <0.15 <0.16 110 480 Indeno(1,2,3-cd)pyrene 0.91 <0.17 <0.17 <0.19 <0.16 <0.18 <0.19 <0.21 <0.21 3.3 <0.17 <0.17 <0.18 3.9 1.1 1-Methylnaphthalene <0.15 <0.17 <0.16 <0.17 <0.14 <0.16 <0.17 <0.18 <0.19 2.2 <0.15 <0.15 <0.16 0.11 18 2-Methylnaphthalene 0.17 J <0.17 <0.18 <0.19 <0.16 <0.18 <0.20 <0.21 <0.21 2.4 <0.17 <0.17 <0.18 3.1 48 Naphthalene 0.38 J <0.15 <0.15 <0.17 <0.14 <0.15 <0.17 <0.18 <0.18 2.2 <0.15 <0.14 <0.15 0.39 2.1 Pentachlorophenol <0.41 <0.43 <0.43 <0.48 <0.40 <0.44 0.63 J <0.51 <0.52 <0.39 <0.42 <0.41 <0.44 0.0083 1.0 Phenanthrene 3.3 <0.14 0.39 J <0.16 <0.13 <0.15 0.20 J <0.17 <0.17 15.6 <0.14 <0.14 <0.15 NE NE Pyrene 2.7 <0.18 0.40 J <0.20 <0.17 <0.18 0.32 J <0.21 <0.21 12.9 <0.18 <0.17 <0.18 440 360 Arsenic 3.87 0.656 J 2.22 2.05 0.905 J 0.493 J 1.27 J 3.23 3.96 2.48 0.747 J 9.07 3.20 5.8 0.68 Barium 62.8 20.6 30.0 161 21.7 10.9 94.2 179 282 104 31.4 194 25.3 580 3,100 Cadmium 0.543 J <0.119 <0.115 0.260 J <0.122 <0.114 <0.144 <0.145 0.144 J <0.102 <0.118 0.423 J <0.124 3.0 1.4 Total Chromium 39.0 9.80 32.0 46.9 12.3 5.61 J 172 53 46.7 44.4 5.7 46.8 632 ------ Trivalent Chromium 39.0 9.80 32.0 44.8 11.7 5.6 171 51 44.5 43.3 5.2 46.8 629 360,000 23,000 Hexavalent Chromium <0.316 <0.356 <0.344 2.09 0.587 J <0.339 0.690 J 1.90 2.21 1.09 J 0.418 J <0.333 2.66 3.8 0.31 Lead 67.6 1.60 J 9.73 37.3 7.14 1.30 J 49.0 6.60 15.8 21.2 7.33 268 15.3 250 400 Mercury 0.0971 <0.0251 0.0259 J <0.0282 0.0528 J <0.0239 <0.303 <0.304 <0.0295 0.0398 J <0.0248 0.205 0.0313 J 1.0 4.7 Selenium 0.582 J 0.296 J 0.708 J 1.45 J <0.257 <0.239 0.841 J 3.31 J 3.96 J 0.873 J <0.248 1.30 J 0.837 J 2.1 78 Silver <0.107 <0.121 <0.117 <0.135 <0.124 <0.115 <0.146 <0.146 <0.142 <0.104 <0.119 0.245 J <0.125 3.4 78 Notes: All results presented in milligrams per kilogram (mg/kg)Value to right of “<” symbol are laboratory method detection limits. Laboratory method reporting limits may be found in the laboratory report. Compounds not shown were not detected J = Estimated concentration detected between laboratory method reporting limit and detection limit VOCs = Volatile Organic Compounds Trivalent Chromium Concentration = Total Chromium Concentration - Hexavalent Chromium Concentration SVOCs = Semi-volatile Organic Compounds VALUE = concentration greater than the laboratory method detection limit PSRG = NCDEQ Preliminary Soil Remediation Goals (July 2023)VALUE = concentration greater than the Protection of Groundwater PSRG * = SB-DUP is a duplicate sample of the P-2 (10 - 15) record sample VALUE = concentration greater than the Residential PSRG Residential PSRG Protection of Groundwater PSRG P-3 Sample Date Sample Depth (x to y ft bgs) E-2 P-1 P-2 Total Metals By EPA Methods 6010/7471/7199SVOCs by EPA Method 8270VOCs by EPA Method 8260Sample ID E-1 APPENDIX C Site Development Plans ENGINEERINGGENERATORELEC. - LSFCCELEC. - MAINMPOEPROP MGRJANMAINTDOG WASHBIKE STORAGEFIRE PUMP / BACKFLOWPACKAGEMAILFSA LOBBYLEASING SUITERECEPTIONLOUNGE STORAGEWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSGAS GAS GAS GAS GAS GAS GAS GAS GAS WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSGAS GAS GAS GAS GAS GAS GAS GAS GAS PROPOSED ON STREET PARKING TYP.TYPE II MODIFIED DRIVEWAYCLDSM 10.25EPROP. 50'X50' SIGHT TRIANGLEPROPOSED CURB RAMPPER CLDSM DETAIL 10.40B(5) SHORT TERM BIKE SPACES TOBE ACCESSIBLE TO PUBLICPER SECTION 12.202APROMINENTENTRANCEPROMINENTENTRANCEPROMINENTENTRANCERUTH D MARTINDB: 24192-696PID: 12307311ZONING: TOD-NC(HD)TRASH ANDRECYCLING(2) 10' X 25' LOADING SPACES42'-6" FROMCENTERLINE TOFUTURE BOCBIKESTORAGEWATER /FIRE PUMP8' AMENITY ZONE(CURBED PLANTER)8' PED ZONE(16' SETBACK FROM BOC)8' AMENITY ZONE(CURBED PLANTER)8' PED ZONE(16' SETBACK FROM BOC)229 KINGSTON LLCDB: 32208-316PID: 12307307ZONING: TOD-NC(HD)LOBBY / MAIL /LEASINGWALTER E KEARNSDB: 24113-981PID: 12307303ZONING: TOD-NC(HD)LYNN H ROBINSONDB: 07365-958PID: 12307302ZONING: TOD-UCJILL S NEWTONDB: 07907-546PID: 12307316ZONING: TOD-UCTRANSFORMERS10' X 10'SIGHTTRIANGLES7'-11" TYP.22'-0" TYP.8'-0"8'-0"44'-1"66'-0"8'-0"IMPROVED ALLEY3'-0"27'-4"FENCED DOG RUN68'-4"ZONINGBOUNDARY LINEZONINGBOUNDARY LINEZONINGBOUNDARY LINETIE INTO EXISTING CURBTIE INTO EXISTING SIDEWALKPROMINENTENTRANCE3.0010'-4"3'-0"12'-10"11'-6"3'-0"17'-4"3'-0"19'-2"10'-0"10'-0"13'-9"R10.00R 1 0 . 0 0 62'-4"PET WATER FOUNTAIN(4) SHORT TERM BIKE SPACES TO BEACCESSIBLE TO PUBLIC PER SECTION 12.202ABUS STOP PER CATSSTANDARD DETAIL 60.01A22'-0"55'-0"100'-0"29'-3"E. PARK AVE.COLLECTORCOMMERCIAL WIDE SECTIONCDOT MAINTAINED60'-00" R.O.W.8' AMENITY ZONESOUTH BLVD.MAJOR THOROUGHFARE4+ AVENUE, BUFFERED/SEPARATED BIKE LANES, ON STREET PARKINGCDOT MAINTAINED100'-00" R.O.W.E. KINGSTON AVE.LOCAL COMMERCIAL WIDE SECTIONCDOT MAINTAINED60'-00" R.O.W.FUTURE BOC16' SETBACK FROM BOC8' AMENITY ZONE0-10' BUILD-TO-ZONEZONING LINEZONINGLINETOD-NC (HD)TOD-UCTOD-UCTOD-NCTOD-NCTOD-NC (HD)16' SETBACK FROMFUTURE BOC0-10' BUILD-TO-ZONETIE INTO EXISTING CONCRETE SIDEWALKGRANITE STREETNAME MARKERS TOBE PROTECTED ANDRELOCATED9'-6"5'-0"METAL PANEL TRANSFORMERENCLOSURE27'-0"27'-4"4'-6"0'-8"STRIPING FOR PEDESTRIANCROSSING14'-0"12'-6"16'-0"10'-0"20'-0"22'-10"25'-2"11'-5"5.007'-6"1" = 20'1601 SOUTHBOULEVARDSTERLING BAY1601 SOUTH BOULEVARDCHARLOTTE, NC1021377LAYOUT PLANN/ALDILDILDIC3-019/28/2023 6:05 PM CASSIDY FRANKLIN \\CORP.LANDDESIGN.COM\LDCORPDATA\PROJECTS\CLT\_2021\1021377\CAD\DOCUMENTATION\1021377_PLN_LYOT.DWGKEY MAPSEALSHEET NUMBERSHEET TITLELANDDESIGN PROJ.#SCALEPROJECTNORTHNO.DESCRIPTIONDATEREVISION / ISSUANCEORIGINAL SHEET SIZE: 30" X 42"VERT:HORZ:CHECKED BY:DRAWN BY:DESIGNED BY:223 NORTH GRAHAM STREETCHARLOTTE, NC 28202704.333.0325WWW.LANDDESIGN.COMNC ENG. FIRM LICENSE # C-0658SEALNOT FORCONSTRUCTION409.29.2023PROGRESS SET104.10.2023100% SCHEMATICDESIGN206.09.202350% DESIGNDEVELOPMENT306.30.2023PROGRESS SET4020010SITE LEGENDFUTURE BACK OF CURB LINEPROPERTY LINESETBACK LINEBUILD-TO-ZONE LINE 6.1 7.1 A B F G 42.1 3 4.1 7.2 A.1 52 C D E 1 7 86 10'-0 1/2"31'-4 1/2"30'-8 1/2"24'-11 1/2"26'-1 1/4"27'-3 5/8"23'-8 1/8" 10'-0 1/2"5'-8"25'-8 1/2"2'-8 1/2"28'-0"2'-10 3/4"22'-0 3/4"3'-0 1/2"23'-0 3/4"4'-11 1/4"22'-4 3/8"5'-7 5/8"2'-11 1/2"15'-1"116'-3 3/4"16'-8 1/2"28'-0"15'-10"12'-2"28'-3"15'-4 1/4"2'-0 3/4"174'-2" 12" THICK CONCRETE RETAINING WALL 5.13.1 3PCE (-1") 4PCE (-1")3PC (-1") 2PC (-1")2PC (-1") 3PC (-1")3PC (-1") 2PC (-1") 5PC (-1'-6") 3PC (-1'-6") 7PC (-1'-6") 7PC (-1'-6") 4PC (-1'-6") 3PC (-1'-6") 4PC (-1'-6") 4PC (-1'-6") 7PC (-1'-6") 7PC (-1'-6") 4PC (-1'-6") 4PC (-1'-6") 6PC (-9") 7PC (9")7PC (9") 3PC (0") 4PC (-9") 4PC (0")4PC (9")4PC (9")4PC (1'-0") 4PC (1'-9") 7PC (1'-9") 7PC (1'-0") 7PC (-1'-6") 2PC (-1'-6") GRADE BEAM (GB01) 18" WIDE x 27" DEEP, TYP RAMP UP RAMP UP RAMP UP 128PC (-7'-0") 7PC (-1'-6") 2'-0" 5" THICK SOG W/ #4 @ 15" OC EW, TYPICAL UNO T.O.S.= +1' - 6" T.O.S.= +2' - 3" T.O.S.= +2' - 6" T.O.S.= +3' - 3" T.O.S.= +1' - 5"T.O.S.= +0' - 0" GRADE BEAM (GB01) 18" WIDE x 27" DEEP, TYP (UON) 7" THICK SOG W/ #5 @ 15" OC EACH WAY AT LOADING DOCK 12PC (1'-9") 3'-0" WIDE x 1'-3" THICK FOOTING 8" x 42" CONCRETE UPTURNED BARRIER WITH CMU WALL ABOVE 12" THICK CONCRETE WALL BELOW GRADE 3"1'-5"1'-6"2'-8"EBEB6PC (-1") 10PC (-1") 8PC (-1") 11PC (-1") 4'-0"1'-2"CL PC CL PC 3'-0" WIDE x 1'-3" THICK FOOTING RAMP UP 9 1/2"CL OF COLUMN G-2.1 AND PILE CAP 12PC (-1") +0' - 9 5/8"+0' - 0" 10PCa (1'-9") 4 S3.15 3 S3.15 3 S3.15 1 S3.15 7 S3.15 8 S3.15 8 S3.15 3 S3.1510"3" 1" 7'-6 1/2" 6'-3 1/2"1'-6"IMEG CORP. RESERVES PROPRIETARY RIGHTS, INCLUDING COPYRIGHTS, TO THIS DRAWING AND THE DATA SHOWN THEREON. SAID DRAWING AND/OR DATA ARE THE EXCLUSIVE PROPERTY OF IMEG CORP. AND SHALL NOT BE USED OR REPRODUCED FOR ANY OTHER PROJECT WITHOUT THE EXPRESS WRITTEN APPROVAL AND PARTICIPATION OF IMEG CORP. ©2023 IMEG CORP. REF. SCALE IN INCHES 0 1 2 3 w w w . l i t t l e o n l i n e . c o m This drawing and the design shown are the property of Little Diversified Architectural Consulting. The reproduction, copying or other use of this drawing without their written consent is prohibited and any infringement will be subject to legal action. Little 2023c PROJECT MANAGER DESIGN TEAM PRINCIPAL IN CHARGE PROJECT TEAM REVISIONS PROJECT NAME SHEET TITLE PROJECT NO. SHEET NUMBER ISSUE FOR ISSUE DATE B 1 2 3 4 5 6 7 A C D E F 615 South College Street, Suite 1600 Charlotte, NC 28202 T: 704.525.6350 1601 SOUTH BLVD.PROJECT #23000066.01 07.17.23 LARISA RAMICH VIMAL PARIKH 7/18/2023 7:26:45 PM Autodesk Docs://1601/S22_23000066.00_Little-1601 South Blvd Charlotte-NC-Stru_C.rvt23000066.01 07.17.23 S1.01 FIRST FLOOR - FOUNDATION PLAN 1601 SOUTH BLVD CONSTRUCTION - STRUCTURAL FRAME IMEG NOR HT 1/8" = 1'-0" FIRST FLOOR - FOUNDATION PLAN1 PLAN NOTES: 1. TOP OF SLAB ELEVATION = 0'-0" UNLESS NOTED OTHERWISE. 2. TOP OF PILE CAP ELEVATIONS ARE 1'-6" BELOW TOP OF SLAB-ON-GRADE ELEVATION, UNLESS NOTED OTHERWISE. 3. PILE CAPACITY IS 470 KIPS COMPRESSION AND 150 KIPS IN TENSION, REFER TO GEOTECHNICAL REPORT FOR PILE LENGTH AND OTHER INFORMATION. 4. 5" THICK SLAB ON GRADE W/ #4 @ 15" OC EACH WAY (TYPICAL) UNLESS NOTED OTHERWISE. NO. REASON DATE UPUPUPUPA2011AA2021AA2024ATRASH / RECYCLE162ELEV-FSAEL-01ELEV-FSAEL-02FCC155INTERIOR MOUNTED COILING DOORINTERIOR MOUNTED COILING DOOREXISTING 2-STORY BUILDING (N.I.C.)PROVIDE TRAFFIC COATING ON FLOOR AND 48" UP ALL WALLSGAS METER ASSEMBLYSEE PLUMBINGSILANE SEALER THROUGHOUT BIKE STORAGETRASH CHUTE ABOVEA2014AELEVEL-036AA3101A1.16CO-WORKING LOUNGE121RAMP UP: 8%MPOE158LOADING160CONC BEAM ABOVE; SEE STRUCTURALBIKE STORAGE154GENERATOR159ELEC. - MAIN157ELEC. - LS156RETAIL B172EL: + 0"T/SLABLEASING SUITE123STAIR-03103RETAIL A171PACKAGE127DRIVE AISLE24' - 1"1A204A6123A5AA6123AA3141AA3145AA3143AA3135AA313A101.25AA101.26BA101.23AA101.25DA101.26AA101.26DA101.23BA101.21AA101.25BDOG WASH153RR135MAINT152PROP MGR138ELEV. LOBBY100FIRE PUMP / BACK FLOW141(45) BIKE SPACES + (8) EB SPACES PROVIDEDEL: + 1' - 3"EL: + 1' - 6"IRR142T/SLABT/SLABEL: + 2' - 3"T/SLABEL: + 2' - 3"T/SLABT/SLABEL: + 2' - 6"T/SLAB T/SLABT/SLABEL: + 2' - 6"T/SLABEL: + 0"T/SLABFIRE BFDCW BF44A101.21D1" / 12"FDFDFD1" / 12"CONCRETE BARRIER WALL BELOW CMUTRENCH DRAIN; SEE CIVILJAN151EL: + 2' - 6"EL: + 3' - 3"T/SLABEL: + 1' - 3"EL: + 2' - 6"T/SLABT/SLABEL: + 1' - 3"FD6.17.1ABFG48.12.134.17.2A.152CDE17865.13.1A101.21B32' - 4" 28' - 0" 103' - 10 7/8"PROMINENT ENTRANCEPROMINENT ENTRANCEPROMINENT ENTRANCEPROMINENT ENTRANCEPROMINENT ENTRANCE52' - 2"58' - 5 3/8"1A3142A101.1AALL MAIN ENTRANCES OF BUILDING TO HAVE SIGNAGE POINTING TOWARDS INTERNAL BIKE ROOM PARKING, TYP.ALL MAIN ENTRANCES OF BUILDING TO HAVE SIGNAGE POINTING TOWARDS INTERNAL BIKE ROOM PARKING, TYP.1' - 11" 10' - 0 1/2" 5' - 8" 25' - 8 1/2" 2' - 8 1/2" 28' - 0" 2' - 10 3/4" 22' - 0 3/4" 3' - 0 1/2" 23' - 0 3/4" 4' - 11 1/4" 22' - 4 3/8" 5' - 7 5/8" 2' - 11 1/2" 15' - 1" 10"CLEAR SITE TRIANGLE PER ZONING SECTION 12.109RR136RECEPTION122VESTIBULE120LEASING OFFICE124LEASING OFFICE125MAIL126LOUNGE STORAGE137ELEVEL-04STAIR-01101EXIT CORR102CORRIDOR150137136135134133132131122AC123AC124125101AC138A152151153AC157B154AC150BAC155156159102160A160BAC120BP157A158OV-103030303030303030303030303030303030303031AA101.1CONCRETE BARRIER WALL BELOW CMU44455551" / 12"A6027AEL: + 3' - 1"A101.26EEL: + 1' - 3"T/SLABEL: + 1' - 3"T/SLABEL: + 1' - 3"T/SLABEL: + 1' - 0"T/SLABT/SLABEL: + 3' - 3"2A101.1B6AA101.31A101.3162AC(2) EB(2) EB(2) EB(2) EB6' - 7 5/8"102 SFENGINEERING161FA PANEL1' - 5"1' - 1"1031617' - 11 1/4"150CAC138B150AAC121PACD127AC126OV-25462' - 0 3/4"14' - 5 3/4"28' - 2"15' - 10"12' - 2"28' - 3"15' - 4 1/4"172171120A1267' - 11 1/4"6' - 5"1FIRE EXTINGUISHER & CABINET AT THIS LOCATION. PROVIDE REQUIREDQUANTITY ON EA. FLOOR PER CODE AND/OR AHJ. SEE XXXX FOR TYP.INSTALLATION DETAILS AND REFER TO LIFE SAFETY PLANS FOR ALLEXTINGUISHER LOCATIONS.2BRACKET-MOUNTED FIRE EXTINGUISHER AT THIS LOCATION. PROVIDEREQUIRED QUANTITY ON EA. FLOOR PER CODE AND/OR AHJ. SEE XXXX FORTYP. INSTALLATION DETAILS AND REFER TO LIFE SAFETY PLANS FOR ALLEXTINGUISHER LOCATIONS.3K13 INSULATION ON UNDERSIDE OF CONCRETE PARKING DECK ABOVE, MIN.R15. COLOR TBD4CONCRETE-FILLED STEEL BOLLARD5TRAFFIC ALONG FLOOR AND 8" UP ALL WALLS6HOT DIPPED GALVANIZED SHIP'S LADDER w/ OPEN GRATE TREADS. NOTE:SPACINGS FOR OPEN-GRATE WALKING SURFACE MUST BE LESS THAN 1/2", IFRECTALINEAR LONG-DIRECTION MUST BE PERPENDICULAR TO CIRCULATIONPATHWAYA. WORK NOTED "BY OTHERS" OR "NIC" SHALL BE PROVIDED BY OWNER OR UNDER SEPARATE CONTRACT.B. SEE SHEET A011 - A021 FOR PARTITION TYPES.C. SEE SHEET A031 FOR DOOR TYPES AND DETAILS.D. PROVIDE CONTROL JOINTS ON GYP. BD. ASSEMBLIES PER SPECIFICATIONS AND WHERE SHOWN.E. EXTEND WALLS TO DECK ABOVE STOREFRONT SYSTEMS AND GLASS WALL PARTITIONS.F. REVIEW DOCUMENTS AND VERIFY DIMENSIONS AND FIELD CONDITIONS WHEN APPLICABLE. CONFIRM THAT WORK IS BUILDABLE AS SHOWN. ANY CONFLICTS OR OMISSIONS SHALL BE IMMEDIATELY REPORTED TO THE ARCHITECT FOR CLARIFICATION PRIOR TO THE PERFORMANCE OF WORK IN QUESTIONS.G. COORDINATE AND PROVIDE METAL OR RATED SOLID WOOD BLOCKING (FIRE TREATED) IN PARTITIONS AND CEILING FOR MILLWORK, WALL AND CEILING ATTACHED ITEMS AS SPECIFIED.H. DO NOT SCALE DRAWINGS. WRITTEN DIMENSIONS GOVERN. ALL PARTITION LOCATIONS, DIMENSIONS AND TYPES, DOOR AND WINDOW LOCATIONS SHALL BE AS SHOWN ON PARTITION PLAN. INCASE OF CONFLICT, NOTIFY ARCHITECT.I. COORDINATE WITH TENANT AND OWNER, THE SCHEDULE FOR TELEPHONE, DATA, SECURITY AND AUDIO VISUAL INSTALLATIONS.J. PARTITIONS AT BUILDING PERIMETER SHALL BE CENTERED ON CENTER LINE OF COLUMN OR WINDOW MULLION, UNLESS OTHERWISE NOTED.K. PROVIDE PARTITION TYPE WITH THE HIGHEST UL AND/OR ACOUSTICAL PERFORMANCE RATING WHERE MORE THAN ONE PARTITION TYPE IS INDICATED. PARTITIONS SHALL BE TYPE 'A' UNLESS OTHERWISE NOTED.L. OFFSET ELECTRICAL AND TELEPHONE OUTLETS 16" MINIMUM IN SEPARATE STUD WALL CAVITIES.M. ON ELEVATED LEVELS EASILY IDENTIFIABLE BREAKOUT PANELS SHALL BE DISTRIBUTED AROUND THE PERIMETER OF EACH FLOOR AT NOT MORE THAN 50' INTERVALS. THE AREA OF THESE PANELS SHALL BE NOT LESS THAN 40 SF PER 50 LF OF PERIMETER PER 403.4.6. SEE LIFE SAFETY SHEETS.3-HR FIRE BARRIERFIRE BARRIERS2-HR FIRE BARRIER1-HR FIRE BARRIER1-HR FIRE PARTITIONFIRE PARTITIONS.5-HR FIRE PARTITION07 21 00 -2" RIGID INSULATION09 22 16 -3 5/8" METAL STUD FRAMING09 29 00 -GYPSUM WALL BOARD4 1/4"1" TYP.2"COLD-FORMED METAL FRAMING TO EXTERIOR WALL AS REQ'DRIGID INSULATION SPECIFICATION:FOIL-FACED, POLYISOCYANURATE BOARD INSULATION: ASTM C1289 TYPE 1, CLASS 1 OR CLASS 2 WITH MAXIMUM FLAME-SPREAD AND SMOKE-DEVELOPED INDEXES OF 25 AND 450, RESPECTIVELY, PER ASTM E 84. PRODUCTS BY ONE OF THE FOLLOWING:ATLAS ROOFING CORPORATIONDOW CHEMICAL COMPANY (THE)RMAX, INCPROVIDE MANUFACTURER’S STANDARD FOIL TAPE FOR TAPING OF SEAMS TO ENSURE CONTINUITY IN THERMAL AND VAPOR BARRIER.APPROX. R-2207 27 26 -FLUID APPLIED MEMBRANEAIR BARRIER04 22 00 -CONCRETE MASONRY UNIT(CMU)L01 / GROUND0"L01.5 -EGRESS9' -7"6.1565.1DOG WASH153CORRIDOR150ELEC. - MAIN157A101.11BA101.11C8' - 0"L01 / GROUND0"EXT.FREFER TO STRUCTURAL DRAWINGS FOR SEQUENCING OF THIS AREAMEMBRANE SEALANT FILLET8' - 0"07 13 26 -SELF-ADHERING SHEETWATERPROOFING07 14 16 -MOLDED DRAINAGE PANEL07 21 00 -2" RIGID INSULATION09 22 16 -3 5/8" METAL STUD FRAMING09 29 00 -GYPSUM WALL BOARD03 30 00 -WATERSTOP03 30 00 -WATERSTOP07 21 00 -SPRAYED INSULATION04 22 00 -CONCRETE MASONRY UNIT(CMU)07 13 26 -SELF-ADHERING SHEETWATERPROOFINGREFER TO STRUCTURAL DRAWINGS FOR 'STEP IN SLAB DETAIL'8"4"8"8"REFER TO PLANS FOR ELEVATIONSVARIESw w w . l i t t l e o n l i n e . c o mThis drawing and the design shown are the property of Little Diversified Architectural Consulting. The reproduction, copying or other use of this drawing without their written consent is prohibited and any infringement will be subject to legal action.Little 2023cPROJECT MANAGERDESIGN TEAMPRINCIPAL IN CHARGEPROJECT TEAMREVISIONSPROJECT NAMESHEET TITLEPROJECT NO.SHEET NUMBERISSUE FORISSUE DATEB1 2 3 4 5 6 7ACDEF615 South College Street, Suite 1600Charlotte, NC 28202T: 704.525.6350PRELIMINARYNOT FORCONSTRUCTION1601 SOUTH BLVD.10/1/2023 11:42:19 PM Autodesk Docs://1601/1601 - Arch_Central R22.rvt132.18529.0109.29.23A101.1FLOOR PLAN - LEVEL 01 /GROUND1601 SOUTH BLVD.GMP STOP-N-PLOTEDDIE PORTIS, AIACHRISTOPHER HOYT, AIADM, EK, OM, CS1/8" = 1'-0"A101.13AL01_GROUNDSHEET KEYED NOTESGENERAL NOTES - FLOOR PLANNO. REASON DATERATED WALL TYPES1" = 1'-0"A101.11EDETAIL - EXTERIOR FURRING_WALL "EXT.F"1/8" = 1'-0"A101.11ASECTION_SPEED RAMP1/2" = 1'-0"A101.11BSECTION DETAIL - SPEED RAMP TRANSITION1" = 1'-0"A101.11CSECTION DETAIL - TYPICAL SLAB TRANSITION @ BOH PERFORATED METAL MECH. SCREENMP-01ACM METAL PANELMP-02MP-03ALUMINUM-FRAMED STOREFRONT SYSTEMGL-01ALUMINUM-FRAMED WINDOW WALL SYSTEMGL-02CMU-01BR-01MODULAR BRICK IN RUNNING BOND PATTERN; BOD: ENDICOTT, DARK IRONSPOT VELOUR MODULARBR-02GL-03MODULAR BRICK IN HERRINGBONE PATTERN; BOD: ENDICOTT, DARK IRONSPOT VELOUR MODULARCONCRETE MASONRY UNIT WITH ELASTOMERIC COATINGCUSTOM ALUMINUM STOREFRONT MULLIONMP-04DO-01PAINTED OVERHEAD COILING DOORCS-01CNC-01CONCRETE WITH ELASTOMERIC COATINGMUL-01GL-04PROFILED METAL SLAB EDGE COVERCUSTOM ALUMINUM STOREFRONT MULLIONMUL-02MECHANICAL LOUVER WITH ARCHITECTURAL GRILLELV-01DO-02PAINTED HOLLOW METAL DOORPNL-01ALUMINUM-FRAMED GLASS DOOR, COLOR TO MATCH ADJ. WINDOW SYSTEMNOT USEDMP-05PERFORATED METAL MECH. SCREENGL-05ALUMINUM GUARDRAIL WITH GLASS PANEL INFILLCAST STONE COPINGRAINSCREEN SYSTEM PANELNOT USEDFAAFAA = FAA OBSTRUCTION LIGHTS.BASIS OF DESIGN: RTL SERIES LED RED OBSTRUCTION LIGHT L-810 w/ PHOTO SENSOR AND CONTROLLERSB-01STONE BASE, COLOR BOD: CHARCOAL GRAYL01 / GROUND0"L02 -PARKING_P0.518' -6"L03 -PARKING_P1.527' -6"L04 -PARKING_P2.536' -6"L05 -PARKING_P3.545' -6"L06 -PARKING_P4.554' -6"L07 -PARKING_P5.563' -6"L09 -AMENITY86' -0"L10 -RESIDENTIAL 01*102' -0"L11 -RESIDENTIAL 02*111' -8"L12 -RESIDENTIAL 03121' -4"L13 -RESIDENTIAL 04131' -0"L14 -RESIDENTIAL 05140' -8"L15 -RESIDENTIAL 06150' -4"L16 -RESIDENTIAL 07160' -0"L17 -RESIDENTIAL 08169' -8"L18 -RESIDENTIAL 09179' -4"L19 -RESIDENTIAL 10*189' -0"L20 -RESIDENTIAL 11199' -2"L21 -RESIDENTIAL 12208' -10"L22 -RESIDENTIAL 13218' -6"L23 -RESIDENTIAL 14228' -2"L24 -RESIDENTIAL 15237' -10"L25 -RESIDENTIAL 16247' -6"L26 -RESIDENTIAL 17257' -2"L27 -RESIDENTIAL 18266' -10"L28 -RESIDENTIAL 19276' -6"L29 -RESIDENTIAL 20*286' -2"L30 -RESIDENTIAL 21*297' -8"L31 -AMENITY / PENTHOUSE309' -8"1' - 10"10' - 0"12' - 0"11' - 6"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"10' - 2"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"16' - 0"13' - 6"9' - 0"9' - 0"9' - 0"9' - 0"9' - 0"9' - 0"18' - 6"L08 -PARKING_P6.572' -6"1' - 2"3' - 6"4' - 4"80' - 0"SKYLINE SIGN, 9'-0" x 80'-0" (720 SQFT)ONLY (1) TYPE OF SIGN IS PERMITTED FROM THE FOLLOWING: ROOF SIGN OR SKYLINE SIGNS6' - 0"18' - 4"PROMINENT ENTRANCE DESIGN ELEMENTS INCLUDE: DECORATIVE PEDESTRIAN LIGHTING / SCONCES21' - 8"L32 -ELEV. MACHINE332' -8"ELEV. MACHINE ROOF342' -8"OVERALL BUILDING342' - 6"2' - 0"FACADE ALTERNATE 05: PROVIDE PRICING FOR 7'-0" HEIGHT ALUMINUM-FRAMED WIND SCREEN WITH GLASS PANEL INFILL IN LIEU OF 42" MIN. GUARDRAILFACADE ALTERNATE 02: PROVIDE PRICING FOR SHIFTING BRICK CORNICE DOWN 4'-0" AND PROVIDE 4'-0" HEIGHT METAL AND GLASS RAILING AT LEVEL 9 AMENITYFAAFAAMP-02MP-02GL-02MP-02GL-02GL-05MP-02MP-02GL-02GL-02GL-05GL-02ABFGA.1CDEGL-02GL-02GL-02MP-02GL-02GL-02MP-02GL-02GL-02GL-02MP-03GL-02GL-02GL-02GL-02MP-02GL-02GL-02MP-02GL-02GL-02GL-02GL-02GL-02PNL-01AVG GRADE PLANE2' -0"GL-02GL-02WALL-MOUNTED SIGN(S), 10% OF LEASABLE BUILDING WALL SQFT (130 SQFT)SOUTH BOULEVARDPUBLIC ALLEYFRONTAGE REQUIRED TO PROVIDE 90% OF FRONTAGE AS ACTIVE USE PER ZONING SECTION 15.3.3.A.1. FRONTAGE IS PROVIDING 100% ACTIVE USEMP-01?DO-01?SB-01BR-02GL-01DO-01?MP-#CNC-01MP-01SB-01GL-02MP-01LV-01MUL-02DO-01SB-01GL-05BR-01MP-4BR-02CNC-01SB-01MUL-02BR-01GL-02GL-02BR-02MP-4MP-#GL-02GL-2GL-02L01 / GROUND0"L09 -AMENITY86' -0"L10 -RESIDENTIAL 01*102' -0"L11 -RESIDENTIAL 02*111' -8"L12 -RESIDENTIAL 03121' -4"L13 -RESIDENTIAL 04131' -0"L14 -RESIDENTIAL 05140' -8"L15 -RESIDENTIAL 06150' -4"L16 -RESIDENTIAL 07160' -0"L17 -RESIDENTIAL 08169' -8"L18 -RESIDENTIAL 09179' -4"L19 -RESIDENTIAL 10*189' -0"L20 -RESIDENTIAL 11199' -2"L21 -RESIDENTIAL 12208' -10"L22 -RESIDENTIAL 13218' -6"L23 -RESIDENTIAL 14228' -2"L24 -RESIDENTIAL 15237' -10"L25 -RESIDENTIAL 16247' -6"L26 -RESIDENTIAL 17257' -2"L27 -RESIDENTIAL 18266' -10"L28 -RESIDENTIAL 19276' -6"L29 -RESIDENTIAL 20*286' -2"L30 -RESIDENTIAL 21*297' -8"L31 -AMENITY / PENTHOUSE309' -8"23' - 0" 9' - 0" 9' - 0" 9' - 0" 9' - 0" 9' - 0" 9' - 0" 9' - 0" 16' - 0" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 10' - 2" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 9' - 8" 11' - 6" 12' - 0"BUILDING CORE, BEYONDELEVATOR OVERRUN, BEYOND40' - 0"15' - 0"ROOF SIGN, 15'-0" x 40'-0" (600 SQFT)ONLY (1) TYPE OF SIGN IS PERMITTED FROM THE FOLLOWING: ROOF SIGN OR SKYLINE SIGNS4' - 4" 3' - 6" 1' - 2"SKYLINE SIGN, 9'-0" x 71'-8" (645 SQFT)ONLY (1) TYPE OF SIGN IS PERMITTED FROM THE FOLLOWING: ROOF SIGN OR SKYLINE SIGNS71' - 8"WALL-MOUNTED SIGN(S), 10% OF LEASABLE BUILDING WALL SQFT (375 SQFT)L02 -PARKING_P1.023' -0"L03 -PARKING_P2.032' -0"L04 -PARKING_P3.041' -0"L05 -PARKING_P4.050' -0"L06 -PARKING_P5.059' -0"L07 -PARKING_P6.068' -0"L08 -PARKING_P7.077' -0"L32 -ELEV. MACHINE332' -8"ELEV. MACHINE ROOF342' -8"2' - 0"OVERALL BUILDING342' - 6"FAAFAAFACADE ALTERNATE 05: PROVIDE PRICING FOR 7'-0" HEIGHT ALUMINUM-FRAMED WIND SCREEN WITH GLASS PANEL INFILL IN LIEU OF 42" MIN. GUARDRAILFACADE ALTERNATE 02: PROVIDE PRICING FOR SHIFTING BRICK CORNICE DOWN 4'-0" AND PROVIDE 4'-0" HEIGHT METAL AND GLASS RAILING AT LEVEL 9 AMENITYMUL-01MP-02MP-02GL-02GL-02MP-02GL-02MP-02MP-02GL-02MP-02GL-02MP-02MP-02GL-02MP-02MP-02MP-02GL-02MP-02GL-02GL-026.17.148.12.134.17.25217865.13.1GL-02AVG GRADE PLANE2' -0"GL-02CNC-01GL-02GL-02DO-02PROMINENT ENTRANCE DESIGN ELEMENTS INCLUDE: DECORATIVE PEDESTRIAN LIGHTING / SCONCES; ARCHITECTURAL DETAILS CARRIED THROUGH TO UPPER STORIES; ARCHWAYS; AND DOUBLE DOORSEAST PARK AVENUEFRONTAGE REQUIRED TO PROVIDE 90% OF FRONTAGE AS ACTIVE USE PER ZONING SECTION 15.3.3.A.1. FRONTAGE IS PROVIDING 100% ACTIVE USEPNL-01GL-05GL-05PNL-01MP-01MP-01MUL-02GL-02GL-05GL-02BR-02BR-01SB-01MP-#BR-02MP-4CNC-0140' - 0"15' - 0"4' - 4" 3' - 6" 1' - 2"71' - 8"BR-0123' - 0" 11' - 10"GL-02MP-0#BR-02LV-01MP-0119' - 4 1/2"2' - 10 1/2"24' - 0"3' - 5"24' - 0"3' - 4"24' - 0"VISION GLASSINSULATED SLAB EDGE COVERSPANDREL GLASS W/ OPAQUE CERAMIC FRITOPERABLE AWNING WINDOWw w w . l i t t l e o n l i n e . c o mThis drawing and the design shown are the property of Little Diversified Architectural Consulting. The reproduction, copying or other use of this drawing without their written consent is prohibited and any infringement will be subject to legal action.Little 2023cPROJECT MANAGERDESIGN TEAMPRINCIPAL IN CHARGEPROJECT TEAMREVISIONSPROJECT NAMESHEET TITLEPROJECT NO.SHEET NUMBERISSUE FORISSUE DATEB1 2 3 4 5 6 7ACDEF615 South College Street, Suite 1600Charlotte, NC 28202T: 704.525.6350PRELIMINARYNOT FORCONSTRUCTION1601 SOUTH BLVD.10/1/2023 11:50:55 PM Autodesk Docs://1601/1601 - Arch_Central R22.rvt132.18529.0109.29.23A201EXTERIOR -ELEVATIONS_NORTH &EAST1601 SOUTH BLVD.GMP STOP-N-PLOTEDDIE PORTIS, AIACHRISTOPHER HOYT, AIADM, EK, OM, CS1/16" = 1'-0"A2011AEAST ELEVATION1/16" = 1'-0"A2014ANORTH ELEVATIONLEGEND - EXTERIOR MATERIALSLEGEND - GLASS TYPESNO. REASON DATE L01 / GROUND0"L09 -AMENITY86' -0"L10 -RESIDENTIAL 01*102' -0"L11 -RESIDENTIAL 02*111' -8"L12 -RESIDENTIAL 03121' -4"L13 -RESIDENTIAL 04131' -0"L14 -RESIDENTIAL 05140' -8"L15 -RESIDENTIAL 06150' -4"L16 -RESIDENTIAL 07160' -0"L17 -RESIDENTIAL 08169' -8"L18 -RESIDENTIAL 09179' -4"L19 -RESIDENTIAL 10*189' -0"L20 -RESIDENTIAL 11199' -2"L21 -RESIDENTIAL 12208' -10"L22 -RESIDENTIAL 13218' -6"L23 -RESIDENTIAL 14228' -2"L24 -RESIDENTIAL 15237' -10"L25 -RESIDENTIAL 16247' -6"L26 -RESIDENTIAL 17257' -2"L27 -RESIDENTIAL 18266' -10"L28 -RESIDENTIAL 19276' -6"L29 -RESIDENTIAL 20*286' -2"L30 -RESIDENTIAL 21*297' -8"L31 -AMENITY / PENTHOUSE309' -8"FAA1' - 10"10' - 0"12' - 0"11' - 6"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"10' - 2"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"16' - 0"13' - 6"9' - 0"9' - 0"9' - 0"9' - 0"9' - 0"9' - 0"18' - 6"BUILDING CORE AND ELEVATOR OVERRUN, BEYONDSKYLINE SIGN, 9'-0" x 80'-0" (720 SQFT)ONLY (1) TYPE OF SIGN IS PERMITTED FROM THE FOLLOWING: ROOF SIGN OR SKYLINE SIGNS4' - 8"4' - 4"80' - 0"L02 -PARKING_P1.023' -0"L03 -PARKING_P2.032' -0"L04 -PARKING_P3.041' -0"L05 -PARKING_P4.050' -0"L06 -PARKING_P5.059' -0"L07 -PARKING_P6.068' -0"L08 -PARKING_P7.077' -0"L32 -ELEV. MACHINE332' -8"ELEV. MACHINE ROOF342' -8"FAAMP-02GL-05MP-02MP-02GL-02MP-02GL-02MP-02MP-02GL-02MP-05MP-02MP-02GL-02MP-02MP-02GL-02MP-02MP-02MP-02MP-02GL-02CNC-01FACADE ALTERNATE 02: PROVIDE PRICING FOR SHIFTING BRICK CORNICE DOWN 4'-0" AND PROVIDE 4'-0" HEIGHT METAL AND GLASS RAILING AT LEVEL 9 AMENITYFACADE ALTERNATE 05: PROVIDE PRICING FOR 7'-0" HEIGHT ALUMINUM-FRAMED WIND SCREEN WITH GLASS PANEL INFILL IN LIEU OF 42" MIN. GUARDRAILABFGA.1CDEOVERALL BUILDING342' - 6"2' - 0"AVG GRADE PLANE2' -0"SOUTH BOULEVARDPUBLIC ALLEYCNC-01PNL-01PNL-01MP-01GL-05CNC-01BR-02CNC-01BR-01BR-01CMU-01SB-01L01 / GROUND0"L09 -AMENITY86' -0"L10 -RESIDENTIAL 01*102' -0"L11 -RESIDENTIAL 02*111' -8"L12 -RESIDENTIAL 03121' -4"L13 -RESIDENTIAL 04131' -0"L14 -RESIDENTIAL 05140' -8"L15 -RESIDENTIAL 06150' -4"L16 -RESIDENTIAL 07160' -0"L17 -RESIDENTIAL 08169' -8"L18 -RESIDENTIAL 09179' -4"L19 -RESIDENTIAL 10*189' -0"L20 -RESIDENTIAL 11199' -2"L21 -RESIDENTIAL 12208' -10"L22 -RESIDENTIAL 13218' -6"L23 -RESIDENTIAL 14228' -2"L24 -RESIDENTIAL 15237' -10"L25 -RESIDENTIAL 16247' -6"L26 -RESIDENTIAL 17257' -2"L27 -RESIDENTIAL 18266' -10"L28 -RESIDENTIAL 19276' -6"L29 -RESIDENTIAL 20*286' -2"L30 -RESIDENTIAL 21*297' -8"L31 -AMENITY / PENTHOUSE309' -8"GENERATOR ROOM MAKE-UP AIR LOUVERGENERATOR ROOM RADIATOR EXHAUST LOUVERGENERATOR ROOM EXHAUST LOUVERLOADING DOCK EXHAUST LOUVER0"10' - 0"12' - 0"11' - 6"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"10' - 2"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"9' - 8"16' - 0"13' - 6"9' - 0"9' - 0"9' - 0"9' - 0"9' - 0"9' - 0"18' - 6"DO-02BUILDING CORE AND ELEVATION OVERRUN, BEYONDCONCRETE FILLED STEEL BOLLARDDO-02SKYLINE SIGN, 9'-0" x 80'-0" (720 SQFT)ONLY (1) TYPE OF SIGN IS PERMITTED FROM THE FOLLOWING: ROOF SIGN OR SKYLINE SIGNS4' - 8"4' - 4"80' - 0"L02 -PARKING_P1.023' -0"L03 -PARKING_P2.032' -0"L04 -PARKING_P3.041' -0"L05 -PARKING_P4.050' -0"L06 -PARKING_P5.059' -0"L07 -PARKING_P6.068' -0"L08 -PARKING_P7.077' -0"L32 -ELEV. MACHINE332' -8"ELEV. MACHINE ROOF342' -8"FAAFAAMP-02MP-02MP-02MP-02MP-02GL-02MP-02MP-02GL-02MP-02MP-02GL-02MP-02MP-02MP-02MUL-01FACADE ALTERNATE 05: PROVIDE PRICING FOR 7'-0" HEIGHT ALUMINUM-FRAMED WIND SCREEN WITH GLASS PANEL INFILL IN LIEU OF 42" MIN. GUARDRAILFACADE ALTERNATE 02: PROVIDE PRICING FOR SHIFTING CONCRETE UPTURN DOWN 4'-0" AND PROVIDE 4'-0" HEIGHT METAL AND GLASS RAILING AT LEVEL 9 AMENITY6.17.148.12.134.17.25217865.13.1OVERALL BUILDING340' - 8"2' - 0"AVG GRADE PLANE2' -0"GL-02EAST PARK AVENUEEAST KINGSTON AVENUEPNL-01DO-02MP-05MP-01MP-01FACADE ALTERNATE 06: PROVIDE PRICING FOR (2) OPTIONS FOR SOUTHERN SCREENING:OPTION 1: SCREEN TO CONTINUE AROUND TO SOUTH FACADE.OPTION 2: BRICK PILASTER AND SCREEN SIM. TO NORTH FACADE MIRRORED ON THIS FACADE.1' - 1"GL-05GL-05CMU-01BR-02CMU-1DO-01?BR-01DO-02CMU-1GL-02CNC-01CNC-01BR-01SB-01VISION GLASSINSULATED SLAB EDGE COVERSPANDREL GLASS W/ OPAQUE CERAMIC FRITOPERABLE AWNING WINDOWPERFORATED METAL MECH. SCREENMP-01ACM METAL PANELMP-02MP-03ALUMINUM-FRAMED STOREFRONT SYSTEMGL-01ALUMINUM-FRAMED WINDOW WALL SYSTEMGL-02CMU-01BR-01MODULAR BRICK IN RUNNING BOND PATTERN; BOD: ENDICOTT, DARK IRONSPOT VELOUR MODULARBR-02GL-03MODULAR BRICK IN HERRINGBONE PATTERN; BOD: ENDICOTT, DARK IRONSPOT VELOUR MODULARCONCRETE MASONRY UNIT WITH ELASTOMERIC COATINGCUSTOM ALUMINUM STOREFRONT MULLIONMP-04DO-01PAINTED OVERHEAD COILING DOORCS-01CNC-01CONCRETE WITH ELASTOMERIC COATINGMUL-01GL-04PROFILED METAL SLAB EDGE COVERCUSTOM ALUMINUM STOREFRONT MULLIONMUL-02MECHANICAL LOUVER WITH ARCHITECTURAL GRILLELV-01DO-02PAINTED HOLLOW METAL DOORPNL-01ALUMINUM-FRAMED GLASS DOOR, COLOR TO MATCH ADJ. WINDOW SYSTEMNOT USEDMP-05PERFORATED METAL MECH. SCREENGL-05ALUMINUM GUARDRAIL WITH GLASS PANEL INFILLCAST STONE COPINGRAINSCREEN SYSTEM PANELNOT USEDFAAFAA = FAA OBSTRUCTION LIGHTS.BASIS OF DESIGN: RTL SERIES LED RED OBSTRUCTION LIGHT L-810 w/ PHOTO SENSOR AND CONTROLLERSB-01STONE BASE, COLOR BOD: CHARCOAL GRAYw w w . l i t t l e o n l i n e . c o mThis drawing and the design shown are the property of Little Diversified Architectural Consulting. The reproduction, copying or other use of this drawing without their written consent is prohibited and any infringement will be subject to legal action.Little 2023cPROJECT MANAGERDESIGN TEAMPRINCIPAL IN CHARGEPROJECT TEAMREVISIONSPROJECT NAMESHEET TITLEPROJECT NO.SHEET NUMBERISSUE FORISSUE DATEB1 2 3 4 5 6 7ACDEF615 South College Street, Suite 1600Charlotte, NC 28202T: 704.525.6350PRELIMINARYNOT FORCONSTRUCTION1601 SOUTH BLVD.10/1/2023 11:51:36 PM Autodesk Docs://1601/1601 - Arch_Central R22.rvt132.18529.0109.29.23A202EXTERIOR -ELEVATIONS_SOUTH &WEST1601 SOUTH BLVD.GMP STOP-N-PLOTEDDIE PORTIS, AIACHRISTOPHER HOYT, AIADM, EK, OM, CS1/16" = 1'-0"A2021AWEST ELEVATION1/16" = 1'-0"A2024ASOUTH ELEVATIONLEGEND - EXTERIOR MATERIALSLEGEND - GLASS TYPESNO. REASON DATE APPENDIX D Vapor Intrusion Mitigation System Drawings and Specifications REVISIONDATEDESCRIPTIONENGSTAMPDATEPROJECT NO.DRAWN BYPREPAREDFORPROJECTSHEET TITLESHEET NO.12/14/23PJ23045NAHTITLE SHEET AND SPECIFICATIONSV1010/18/23FOR NCDEQ REVIEWDHHANLEY ENVIRONMENTAL, PLLC323 MANNING DRIVECHARLOTTE, NORTH CAROLINANC LICENSE P-2407VAPOR INTRUSION MITIGATION SYSTEM1601 South Boulevard/McCorkles CleanersBrownfields PropertyBrownfields Project No. 26076-22-0601601-1617 South Boulevard and 1612 Cleveland AvenueCharlotte, Mecklenburg County, North CarolinaSITE50 FT100 FTWESNSHEET INDEXV1TITLE SHEET AND SPECIFICATIONSV2SUB-SLAB AND FIRST FLOOR VIMS LAYOUTV3SECOND LEVEL VIMS LAYOUTV4THIRD LEVEL VIMS LAYOUTV5VIMS DETAILSV6VIMS DETAILSPART 2 - PRODUCTS2.1Vapor Collection and Venting SystemA.The gas permeable layer (Detail 1 on Sheet V5) shall consist of a layer of at least 4 inches in depth ofwashed #57 stone with <5% fines, or another gravel that meets ASTM C33 requirements for size numbers 5,56, 57, or 6. Gas permeable layer depth shall increase around solid sub-slab piping (Detail 3 on Sheet V5).B.Sub-slab vapor collection system shall consist of low profile geosynthetic mat venting intended for sub-slabvapor transport measuring 12” wide by 1” tall (e.g., Vapor-VentTM, EPRO Services, Inc; GeoventTM CETCO)and associated fittings.C.Sub-slab conveyance piping shall consist of 4-inch and 6-inch diameter, Schedule 40, solid core PVC pipingmeeting local plumbing code.D.Exhaust vent piping shall consist of 6-inch diameter, solid metal piping rated for drain, waste, vent (DWV)applications meeting local plumbing code.2.2Vapor Intrusion BarrierA.A vapor intrusion barrier system beneath the concrete slab consisting of an ethylene-vinyl alcoholcopolymer base layer (20 mils) bonded to a 3 ounce/square yard geotextile (21 mils), with spray-appliedasphaltic emulsion (ranging from 30 to 60 mil thickness) at seams, penetrations, and terminations. Thespecified barrier system is Geo-Seal® EV40s manufactured by EPRO Services, Inc.B.Barriers on vertical retaining walls shall be coordinated with the waterproofing engineer/architect.Geo-Seal® 100 Wall manufactured by EPRO Services, Inc. or engineer-approved equivalent shall be used onretaining walls.C.Barriers on interiors of elevator pit base shall be coordinated with the waterproofing engineer/architectGeo-Seal® Core manufactured by EPRO Services, Inc. shall be applied and covered with Geo-Seal® Film 11manufacturer by EPRO Services, Inc.2.3Vacuum Monitoring PointsA.Each permanent vacuum monitoring point (VMP) shall consist of the following materials:1.Vapor Pin Insert (Vapor Pin Enterprises, Inc.).2.Stainless steel vapor pin (VPIN 0522SS, Vapor Pin Enterprises, Inc.).3.Vapor pin cap (Vapor Pin Enterprises, Inc.).4.Vapor pin sleeve (silicon) (Vapor Pin Enterprises, Inc.).5.Stainless steel secured cover (Vapor Pin Enterprises, Inc.).6.1/2”-13 course threaded rod minimum 18 inches long.B.Each temporary vacuum monitoring point (TMP) shall consist of the following materials:1.1-inch diameter, Schedule 40, solid core PVC pipe.2.1-inch diameter, Schedule 40.3.Approximately 3-foot section of rebar with diameter less than 1 inch.PART 3 - EXECUTION3.1Vapor Collection and Venting SystemA.Utilities placed in the gas permeable layer may not be larger than 1 inch in diameter. Larger utilities shall beburied in the subbase.B.The sub-slab vapor collection system shall be installed in accordance with manufacturer recommendations.C.Thickened footers shall extend deeper (per Structural Plans) at locations where sub-slab piping penetratesfooters. Protective PVC pipe sleeves shall be installed around conveyance piping at footer penetrations.D.Sub-slab vapor collection piping shall come together into plenum boxes constructed from hollow concreteblocks at locations shown on the drawings.E.Sub-slab PVC conveyance piping shall transition to solid metal exhaust ventilation piping within one footabove the slab using an airtight PVC to metal coupling (Husky 4000 series or engineer approved equivalent).F.Vertical exhaust ventilation piping shall be secured to walls or columns at intervals not exceeding 10 feetand horizontal exhaust ventilation piping shall be secured at intervals not exceeding 4 feet, or as per localbuilding code.G.Exhaust ventilation piping shall be sloped a minimum of 1% slope towards ground surface to gravity drainand avoid traps.H.Exhaust ventilation piping on levels two and three on the parking garage or outdoor space on level one shallbe provided with insulation that has an R-value of no less than 4.I.Exhaust ventilation piping shall be labeled at least every 10 linear feet.J.Exhaust ventilation discharge shall be flush with the exterior building wall and capped with a mesh varmintscreen.K.Permanent barriers (e.g. rail or chain as specified by the architect) shall be installed to prevent public accesswithin 10 feet of exhaust points on parking deck levels 2 and 3.L.Electrical conductors from a dedicated breaker shall be provided within 6 feet of each planned fan location(Detail 18 on Sheet V6) to supply a boxed junction installed in accordance with applicable codes. The boxedjunction shall be labeled “SOIL GAS FAN” and shall provide continuous service when activated and shall notbe joined to mechanical or automated systems that could deactivate the breaker. Each conductor shallprovide 120 volts, 60 Hz, AC power with 5 amps per junction.3.2Vapor Intrusion BarrierA.The barrier shall be applied continuously within the areas specified on the drawings. The vapor intrusionbarrier shall be installed by a manufacturer-approved installer in conformance with manufacturerrecommendations.B.Barrier edges shall be sealed to footers to create an air-tight seal in accordance with manufacturerrecommendations. Alternatively, if a monopour of slabs and footers is used, the barrier shall extendbeneath footers and up the outside of footers to the ground surface.C.At penetrations through the membrane (e.g., utility conduits, plumbing pipes, etc.), the penetrations shallbe sealed per vapor barrier manufacturer recommendations to create an air-tight seal around thepenetration (Detail 6 on Sheet V5).D.Concrete forms, reinforcing steel, etc. shall not be driven into the membrane and shall be placed to beprotective of the membrane. Hollow pipe supports penetrating the barrier shall not be used. Punctures orother damage shall be patched in accordance with manufacturer recommendations.E.The vapor intrusion barrier will serve as a moisture barrier and will replace moisture barriers specified inareas where the vapor intrusion barrier is present. Barrier components installed in coordination withwaterproofing products must be reviewed and approved by the architect or waterproofing engineer.F.The VIMS contractor shall provide a written five-year material warranty signed by the vapor intrusionbarrier manufacturer.3.3Vacuum Monitoring PointsA.VMPs shall be installed to allow for collection of soil gas samples and sub-slab vacuum measurement fromthe gas permeable layer.B.Permanent VMPs shall be installed by the vapor barrier installer in accordance with the Vapor Pin InsertStandard Operating Procedure and sealed to the vapor intrusion barrier in accordance with manufacturerspecifications. Vapor pin caps shall be flush with the finished floor surfaces.C.Permanent VMPs shall be installed at locations that are expected to be readily accessible following buildingoccupancy.D.Temporary VMPs shall consist of 1-inch diameter solid PVC that passes vertically through the vapor barriermembrane and concrete slab to allow for measurement of vacuum influence during pressure fieldextension testing (Detail 11 Sheet V5). 1-inch PVC shall terminate with open ends in the gas permeable layerand approximately 1 ft above the finished slab. Temporary VMPs shall be secured in place using rebarextending through the VMP and driven into the sub-base, to be removed after slabs have been cast.Temporary VMPs shall be abandoned by filling with concrete and cutting flush with the slab followingpressure field extension testing and NCDEQ approval.3.4Slab Pour-Back AreasA.In slab leave-out/pour-back areas in retail units A and B, VIMS components shall be installed, inspected, andtested during initial system construction.B.After vapor intrusion barrier installation and prior to retail unit upfitting and slab installation, the vaporintrusion barrier shall be protected by limiting the building tenants and the general public from access.C.Plywood, gravel, or other protective measures shall be installed to protect the barrier if regular foot orequipment traffic over the barrier is expected.D.Signage shall be posted in areas with exposed barriers stating that caution should be used to avoiddamaging the barrier and that damage to the barrier should be reported to property management.E.Damage to the barrier shall be reported immediately to property management, and repairs shall be madein accordance with manufacturer recommendations and with inspections per Specification 3.5.3.5Quality Assurance/Quality Control, Operations and MaintenanceA.System construction shall be subject to quality assurance/quality control (QA/QC) inspections, testing, andmonitoring by qualified professionals under the direction of a North Carolina professional engineer forcompliance with the VIMS design:1.Sub-slab system components (e.g., gas permeable layer, soil gas inlets, and piping) shall passinspection prior to being covered with a vapor intrusion barrier.2.Placement of the vapor intrusion barrier shall pass inspection by a manufacturer-approvedinspector prior to pouring the concrete slabs. Inspections and smoke testing shall be performed inaccordance with the vapor intrusion barrier manufacturer recommendations. Smoke testing shallbe performed by the VIMS installation contractor under observation by the inspector.3.Exhaust riser piping shall be inspected prior to covering the drywall or other finishings.4.Exhaust discharge outlets shall be inspected after installation.B.Contractor shall notify VIMS QA/QC inspector at least one week in advance of inspection activities.C.Findings that do not meet specifications shall be corrected by the contractor and re-inspected prior tosystem components being covered (e.g., by concrete slabs).D.Pressure field extension testing shall be performed by qualified professionals under direction of a NorthCarolina professional engineer to verify that areas below the slab can be effectively influenced by the vaporcollection network in accordance with the Vapor Intrusion Mitigation Plan.E.Pre- and post-occupancy monitoring shall be performed by qualified professionals following completion ofsystem construction to verify system effectiveness in accordance with the Vapor Intrusion Mitigation Plan.ECS SOUTHEAST, LLP1812 CENTER PARK DRIVE, SUITE DCHARLOTTE, NORTH CAROLINA1601 SOUTH BOULEVARD/McCORKLES CLEANERSBROWNFIELDS PROPERTY1601-1617 SOUTH BLVD AND 1612 CLEVELAND AVECHARLOTTE, NORTH CAROLINA112/14/23REVISED FOR NCDEQ REVIEWDHPART 1 - GENERAL1.1 These vapor intrusion mitigation system (VIMS) design drawings are a component of the Vapor IntrusionMitigation Plan prepared by Hanley Environmental, PLLC. These drawings and specifications presentinformation most relevant for mitigation system installation by the vapor intrusion mitigation systemcontractor. The Vapor Intrusion Mitigation Plan includes pre- and post-occupancy testing, operation,maintenance, monitoring, and reporting requirements which are integral to effective vapor intrusionmitigation system installation and operation.1.2 These drawings and specifications are intended to be used for the direction of VIMS components only andare not intended to guide construction of structural, architectural, or other components. Contractor shallverify consistency of design with applicable structural, architectural, mechanical, electrical, and plumbingplans and resolve inconsistencies prior to installation.1.3 Work shall be performed only when weather conditions are within the manufacturer recommendations forthe materials and products used. ENGINEERINGGENERATORELEC. - LSFCCELEC. - MAINMPOEPROP MGRJANMAINTDOG WASHBIKE STORAGEFIRE PUMP / BACKFLOWPACKAGEMAILELEV. LOBBYLEASING SUITERECEPTIONLOUNGE STORAGETRASH / RECYCLERETAIL ARETAIL BCO-WORKINGLOUNGELOADINGSTAIR-03EXIT CORR CORRIDORLEASING OFFICE LEASING OFFICE VESTIBULEOFFICEOFFICE OFFICE OFFICETMP-4TMP-2R2R1PLACE VACUUMMONITORINGPOINT WITHINSLAB RIBBONVMP-2VMP-1VMP-4VMP-3VMP-56-INCH SOLID PVC PIPE6-INCH SOLID PVC PIPETMP-1T. O. S. = +1' - 5"T. O. S. = +2' - 3"T. O. S. = +1' - 6"T. O. S. = +2' - 6"T. O. S. = +3' - 3"T. O. S. = +0' - 0"T. O. S. = +0' - 0"T. O. S. = +0' - 9 5/8"PIPE TURNS AND RUNSVERTICALLY THROUGHLEVEL 2 FLOORPIPE JOGS IN LEVEL1 CEILING SPACET. O. S. = +3' - 1"T. O. S. = +1' - 3"T. O. S. = +0"T. O. S. = +1' - 3 ""T. O. S. = +1' - 3 ""T. O. S. = +1' - 3 ""PIPE TURNS VERTICALLY ANDPENETRATES LEVEL 2 FLOORPIPE JOGS IN LEVEL 1CEILING SPACEPIPE RUNS UPWALL ANDPENETRATESWALL JUSTBELOW LEVEL 2TMP-3REVISIONDATEDESCRIPTIONENGSTAMPHANLEY ENVIRONMENTAL, PLLC323 MANNING DRIVECHARLOTTE, NORTH CAROLINANC LICENSE P-2407DATEPROJECT NO.DRAWN BYPREPAREDFORPROJECTSHEET TITLESHEET NO.SUB-SLAB AND FIRST FLOOR VIMS LAYOUTV20DHNAHSCALE: 3/16" = 1'-0"SUB-SLAB AND FIRST FLOOR VIMS LAYOUT1NOTESLEGEND1.SEE GENERAL NOTES ONSHEET V1.2.ARCHITECTURAL ANDSTRUCTURAL PLANSBACKGROUND PREPARED BYLITTLE DIVERSIFIEDARCHITECTURALCONSULTING PROVIDED ONOCTOBER 3, 2023.3.BUILDING AREAS OUTSIDEBARRIER EXTENT AREOPEN-AIR AND SHALL NOTBE ENCLOSED IN THEFUTURE.6" SOLID EXHAUST VENTVERTICAL RISER PIPEVAPOR MITIGATIONBARRIER EXTENT4" SCH 40 SOLIDPVC PIPEVAPOR COLLECTIONSYSTEMPERMANENT VACUUMMONITORING POINTBUILDING FOOTERS ANDTHICKENED SLABSPLENUM BOXTEMPORARY VACUUMMONITORING POINTVAPOR MITIGATION BARRIERON RETAINING WALLPJ230451601 SOUTH BOULEVARD/McCORKLES CLEANERSBROWNFIELDS PROPERTY1601-1617 SOUTH BLVD AND 1612 CLEVELAND AVECHARLOTTE, NORTH CAROLINAECS SOUTHEAST, LLP1812 CENTER PARK DRIVE, SUITE DCHARLOTTE, NORTH CAROLINA10V51V52V54V55V514V513V58V53V515V59V517V616V65 FT10 FTWESN6" SCH 40 SOLIDPVC PIPE SUB-SLABVAPOR MITIGATION BARRIEREXTENT AT SLAB LEAVE OUTS13V511V517V66" SOLID EXHAUSTVENT HORIZONTAL PIPE5V5DETAIL CALLOUT19V5 7V519V619V610/18/23FOR NCDEQ REVIEW12/14/23112/14/23REVISED FOR NCDEQ REVIEWDH20V6 UTILITYUTILITYSTAIR 03STAIR 02UTILITYELEV. LOBBYSTAIR 01P0.5P1.0DRY RISERR2R1R1 DISCHARGELOCATION ON LEVEL 2PIPE PENETRATESLEVEL 2 FLOORPROVIDE BARRIER TOPREVENT ACCESS WITHIN10 FT OF EXHAUST POINT(SEE SPECIFICATION 3.1 K.)10'FROMBUILDINGCORNERPIPE PENETRATESLEVEL 3 FLOORPIPE PENETRATES LEVEL 2FLOOR AND CONTINUES UPTO TURN AND JOG INLEVEL 2 CEILING SPACEPIPE JOGS IN LEVEL 2CEILING SPACEREVISIONDATEDESCRIPTIONENGSTAMPHANLEY ENVIRONMENTAL, PLLC323 MANNING DRIVECHARLOTTE, NORTH CAROLINANC LICENSE P-2407DATEPROJECT NO.DRAWN BYPREPAREDFORPROJECTSHEET TITLESHEET NO.2nd LEVEL VIMS LAYOUTV30DHNAHSCALE: 3/16" = 1'-0"2ND LEVEL VIMS LAYOUT1NOTES1.SEE GENERAL NOTES ONSHEET V1.2.ARCHITECTURAL PLANBACKGROUND PREPARED BYLITTLE DIVERSIFIEDARCHITECTURALCONSULTING PROVIDED ONOCTOBER 3, 2023.PJ23045ECS SOUTHEAST, LLP1812 CENTER PARK DRIVE, SUITE DCHARLOTTE, NORTH CAROLINALEGEND6" SOLID EXHAUST VENT VERTICALRISER PIPE7V5DETAIL CALLOUT6" SOLID EXHAUST VENT HORIZONTALPIPE1601 SOUTH BOULEVARD/McCORKLES CLEANERSBROWNFIELDS PROPERTY1601-1617 SOUTH BLVD AND 1612 CLEVELAND AVECHARLOTTE, NORTH CAROLINA18V65 FT10 FTWESN 7V510/18/23FOR NCDEQ REVIEW12/14/23112/14/23REVISED FOR NCDEQ REVIEWDH STAIR 03UTILITYSTAIR 02ELEC.ELEC.ELEV. LOBBYSTAIR 01DRY RISERP1.5P2.0R2R2 DISCHARGELOCATION ONLEVEL 3PROVIDE BARRIER TOPREVENT ACCESS WITHIN10 FT OF EXHAUST POINT(SEE SPECIFICATION 3.1 K.)PIPEPENETRATESLEVEL 3FLOORREVISIONDATEDESCRIPTIONENGSTAMPHANLEY ENVIRONMENTAL, PLLC323 MANNING DRIVECHARLOTTE, NORTH CAROLINANC LICENSE P-2407DATEPROJECT NO.DRAWN BYPREPAREDFORPROJECTSHEET TITLESHEET NO.3rd LEVEL VIMS LAYOUTV40DHNAHSCALE: 3/16" = 1'-0"3RD LEVEL VIMS LAYOUT1NOTESLEGEND1.SEE GENERAL NOTES ONSHEET V1.2.ARCHITECTURAL PLANBACKGROUND PREPARED BYLITTLE DIVERSIFIEDARCHITECTURALCONSULTING PROVIDED ONOCTOBER 3, 2023.6" SOLID EXHAUST VENT VERTICALRISER PIPE7V5DETAIL CALLOUTPJ23045ECS SOUTHEAST, LLP1812 CENTER PARK DRIVE, SUITE DCHARLOTTE, NORTH CAROLINA6" SOLID EXHAUST VENT HORIZONTALPIPE1601 SOUTH BOULEVARD/McCORKLES CLEANERSBROWNFIELDS PROPERTY1601-1617 SOUTH BLVD AND 1612 CLEVELAND AVECHARLOTTE, NORTH CAROLINA18V65 FT10 FTWESN10/18/23FOR NCDEQ REVIEW12/14/23112/14/23REVISED FOR NCDEQ REVIEWDH PER PLAN4" MIN.GAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABSUBBASEGAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABSUBBASELOW PROFILE VAPOR COLLECTION SYSTEMPER PLAN4" MIN.VAPOR INTRUSION BARRIERCABLE TIEASPHALTIC EMULSIONREINFORCEMENTFABRICNOTE: SEAL PENETRATIONS PER MEMBRANE MANUFACTURERRECOMMENDATIONS. TYPICAL CONFIGURATION IS PRESENTED.GASPERMEABLELAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABWALL VARIES BY PLANVAPOR BARRIERCONTINUES BENEATHTHICKENED FOOTERGAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABLOW PROFILE VAPORCOLLECTION SYSTEMEND OUTLETADAPTERSOLID 4-INCHDIA. PVC PIPEBARRIER PENETRATION SEALEDAROUND PIPE SLEEVE PERMANUFACTURER INSTRUCTIONSWALL VARIES BY PLANFOOTER EXTENDS DEEPER ATPIPE PENETRATIONS(SEE STRUCTURAL DRAWINGS)PIPE SLEEVEGAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABVAPOR INTRUSION BARRIERSEALED TO PILE CAPWALL VARIES BY PLANFINISHED EXTERIOR GRADEGAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABVAPOR BARRIERCONTINUES TOFINISHED GRADEWALL VARIES BY PLANNOTES:1. INSTALL PER VAPOR-PIN INSERT STANDARD OPERATING PROCEDURE.2. CUT INSERT TO TERMINATE 2" BELOW BOTTOM OF SLAB.3. SECURE INTO SUBBASE WITH THREADED ROD PRIOR TO POURING CONCRETE.VAPOR PIN DETAIL PROVIDED BY VAPOR PIN ENTERPRISES, INC.VAPORPINSILICONESLEEVESECURECOVERPROTECTIVECOVERVAPORPININSERTSEALBARRIERAROUNDINSERT2"CONCRETESLABGASPERMEABLELAYER1' MIN.GAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLAB1-INCH DIA. SOLID PVC PIPESUBBASEPENETRATION SEALED AROUND PIPECOVER WITH TAPE AROUND REBARPER PLANREBAR EXTENDS FROM TOPOF PVC PIPE INTO SUBBASELABELBUILDINGCOLUMNOR WALLCOLUMN FOOTER (TYP.)BRACE PER LOCAL CODELABEL EVERY 10 LINEAR FEETCREATE AIRTIGHT SEALPER VAPOR BARRIERMANUFACTURERRECOMMENDATIONS6" DIA. SOLID METALEXHAUST VENT PIPINGHUSKY 4000 TRANSITIONCOUPLING OR APPROVEDEQUIVALENT (AIR-TIGHT)TYP. SOLID 6-INCH DIA.90 DEGREE FITTINGSOLID 6-INCH DIA. PVC PIPENOTES:1.DRILL 1/4-INCH DIA. WEEP HOLESINTO BOTTOM OF SOLIDSUBGRADE PIPE EVERY TWOFEET TO ALLOW CONDENSATEDRAINAGE.GAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABPILES - REFER TOSTRUCTURAL PLANSPILE CAP - REFER TOSTRUCTURAL PLANSCORE SHEAR WALL - REFERTO STRUCTURAL PLANSELEVATOR PIT - REFERTO STRUCTURAL PLANSGEO-SEAL CORE 60 MIL.COORDINATE WITHWATERPROOFINGENGINEER.GEO-SEAL 100 WALL VAPORINTRUSION BARRIER. COORDINATEWITH WATERPROOFING ENGINEER.GEO-SEAL FILM 11GEO-SEAL 100 VAPOR INTRUSIONBARRIER. COORDINATE WITHWATERPROOFING ENGINEER.SECUREOVERHEADPIPING EVERY 4'(TYP.) OR AS PERLOCAL BUILDINGCODESLOPENOTES:1.MAINTAIN AT LEAST 1/8" SLOPE TOWARD GROUND AND AVOID TRAPS.2.PIPES SHALL BE INSULATED WITHIN UNCONDITIONED GARAGE AND OUTDOOR SPACE.SEE SPECIFICATION 3.1 H.LABELLABEL EVERY10 LINEAR FEETGAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABLOW PROFILE VAPORCOLLECTION SYSTEMEND OUTLETADAPTERBARRIER PENETRATION SEALEDAROUND PIPE SLEEVE PERMANUFACTURER INSTRUCTIONSSOLID 4-INCHDIA. PVC PIPESLOPETYP. SOLID4-INCH DIA.90 DEGREEFITTINGFOOTER EXTENDS AT SUB-SLABCOLLECTION SYSTEM (SEESTRUCTURAL DRAWINGS)PIPE SLEEVEPER PLANGAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABSUBBASE30 MIL (MINIMUM) SPRAY APPLIED ORHAND TROWEL CORE ASPHALTICEMULSION LAYER BONDED TO GEOTEXTILEAND IN BETWEEN PENETRATIONSPIPES IN PENETRATION BANKSHALL BE ENCASED WITHIN12-INCHES OF NON-SHRINKGROUT POURED PRIOR TOPLACEMENT OF VAPOR BARRIERNOTES:1.CONCRETE SHALL EXTEND A MINIMUM OF8-INCHES FROM THE OUTSIDE EDGE OFPENETRATIONS.2.DETAIL APPLIES TO PIPE PENETRATIONSLESS THAN 3-INCHES APART.3.PIPES MUST HAVE A MINIMUM 1/8-INCH GAPBETWEEN PIPES.GAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABSUBBASESOLID 6-INCH DIA. PVC PIPEPER PLAN4" MIN.TRENCH ALONG PIPING TOPROVIDE MINIMUM OF 1 INCH OFGRAVEL ABOVE AND BELOW PIPEREVISIONDATEDESCRIPTIONENGSTAMPHANLEY ENVIRONMENTAL, PLLC323 MANNING DRIVECHARLOTTE, NORTH CAROLINANC LICENSE P-2407DATEPROJECT NO.DRAWN BYPREPAREDFORPROJECTSHEET TITLESHEET NO.VIMS DETAILSV5SCALE: 1" = 1'-0"TYP. SUB-SLAB COLLECTION SYSTEM2SCALE: 1" = 1'-0"TYP. VAPOR INTRUSION BARRIER PENETRATION65NOT TO SCALESCALE: 1" = 1'-0"TYP. VACUUM MONITORING POINT10SCALE: 1" = 1'-0"TYP. VAPOR INTRUSION BARRIER AND GAS PERMEABLE LAYER18SCALE: 1" = 1'-0"TYP. PILE CAP SECTION4SCALE: 1" = 1'-0"TYP. SECTION AT THICKENED SLABTYP. SUB-SLAB COLLECTION SYSTEM AT THICKENED SLABSCALE: 1'-0"=1"TYP. SECTION AT EXTERIOR WALL9SCALE: 1" = 1'-0"TYP. TEMPORARY VACUUM MONITORING POINT11SCALE: 1" = 1'-0"TYP. EXHAUST RISER PIPE14SCALE: 1/2" = 1'-0"TYP. ELEVATOR PIT15SCALE: 1" = 1'-0"TYP. HORIZONTAL JOG OVERHEAD PIPE7SCALE: 1" = 1'-0"TYP. SUB-SLAB COLLECTION SYSTEM AT SLAB GRADE CHANGE13HANLEY ENVIRONMENTAL, PLLC323 MANNING DRIVECHARLOTTE, NORTH CAROLINANC LICENSE P-24070DHNAHPJ23045ECS SOUTHEAST, LLP1812 CENTER PARK DRIVE, SUITE DCHARLOTTE, NORTH CAROLINA1601 SOUTH BOULEVARD/McCORKLES CLEANERSBROWNFIELDS PROPERTY1601-1617 SOUTH BLVD AND 1612 CLEVELAND AVECHARLOTTE, NORTH CAROLINASCALE: 1" = 1'-0"TYP. UTILITY BANK PENETRATION12SCALE: 1" = 1'-0"TYP. SUB-SLAB SOLID PIPING310/18/23FOR NCDEQ REVIEW12/14/23112/14/23REVISED FOR NCDEQ REVIEWDH GAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABLOW PROFILE VAPORCOLLECTION SYSTEMEND OUTLETADAPTERSOLID 6-INCHDIA. PVC PIPESLOPETYP. SOLID6-INCH DIA.45 DEGREEFITTINGGEO-SEAL 100 WALL VAPORINTRUSION BARRIER.COORDINATE WITHWATERPROOFING ENGINEER.NOTES:1.DRILL 1/4-INCH DIA.WEEP HOLES INTOBOTTOM OF SOLIDSUBGRADE PIPEEVERY TWO FEET TOALLOW CONDENSATEDRAINAGE.PIPE SLEEVEGAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABVAPOR BARRIERCONTINUES BENEATHTHICKENED FOOTERVAPOR BARRIERCONTINUES BENEATHSTAIRS ON GRADELABELELECTRICALJUNCTION BOXLABELED "SOILGAS FAN"2' MINSLOPESOLID 6-INCH DIA.METAL PIPETYP. SOLID 6-INCHDIA. 90 DEGREEFITTINGLABELOPEN ENDED PIPE WITHMESH VARMINT SCREENFLUSH WITH EXTERIORFINISHEXTERIOR BUILDING WALLCOUPLING ORFLANGE FORFUTURE FANINSTALLATIONNOTES:1.OUTLET LOCATIONS SHALL BE MIN. 10 FTSTRAIGHT LINE DISTANCE FROM ANY AIRINTAKES, OPENINGS TO ENCLOSEDBUILDING AREAS, OR AREAS WHEREPEOPLE TRAVERSE, AND MINIMUM 20 FTABOVE EXTERIOR GRADE.2.MAINTAIN SLOPE MIN 1/8 INCH PER FOOTTOWARD SOIL FOR HORIZONTAL PIPING.3.ELECTRICAL SERVICE TO BE INSTALLED.SEE SPECIFICATION 3.1 L. ON SHEET V1.4.PIPES SHALL BE INSULATED WITHINGARAGE AND OUTDOOR SPACE. SEESPECIFICATION 3.1 H. ON SHEET V1.SECURE OVERHEAD PIPINGEVERY 4' (TYP.) OR AS PERLOCAL BUILDING CODEPARKING DECK4-INCH MINERALWOOL BOARDBACKSET PERFORATEDALUMINUM SCREEN &EXTRUDED ALUMINUM FRAMEEXTERIOR FINISH(PARKING GARAGE SCREEN)SOLID 6-INCH DIA. METALPIPE - INSULATED WITHINPARKING GARAGE ANDOUTDOOR SPACE4.0"4" MIN.GAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABSUBBASE6-INCH DIA. SOLID PVC PIPELOW PROFILE VAPORCOLLECTION SYSTEMEND OUTLET ADAPTOR4-INCH DIA. SOLID PVC PIPETYP. 8"x8"x16" CORED CONCRETE BLOCK6-INCHDIA. SOLIDPVC PIPE4-INCH DIA. SOLID PVC PIPETYPICAL 8"x8"x16"CORED CONCRETE BLOCKLOW PROFILE VAPORCOLLECTION SYSTEMEND OUTLETADAPTERNOTES:1.VERIFY PIPING LAYOUT ASSHOWN ON SHEET V2.VOID SPACE(NO GRAVEL)OPEN PIPEENDS16"GAS PERMEABLE LAYERVAPOR INTRUSION BARRIERCONCRETE FLOOR SLABPT RAMP SLABRC WALL PER PLANBUILDING INTERIORGEO-SEAL 100 WALL VAPORINTRUSION BARRIER. COORDINATEWITH WATERPROOFING ENGINEER.REVISIONDATEDESCRIPTIONENGSTAMPHANLEY ENVIRONMENTAL, PLLC323 MANNING DRIVECHARLOTTE, NORTH CAROLINANC LICENSE P-2407DATEPROJECT NO.DRAWN BYPREPAREDFORPROJECTSHEET TITLESHEET NO.VIMS DETAILSV6SCALE: 3/4" = 1'-0"PARKING GARAGE RAMP SECTION17HANLEY ENVIRONMENTAL, PLLC323 MANNING DRIVECHARLOTTE, NORTH CAROLINANC LICENSE P-24070DHNAHPJ23045ECS SOUTHEAST, LLP1812 CENTER PARK DRIVE, SUITE DCHARLOTTE, NORTH CAROLINA1601 SOUTH BOULEVARD/McCORKLES CLEANERSBROWNFIELDS PROPERTY1601-1617 SOUTH BLVD AND 1612 CLEVELAND AVECHARLOTTE, NORTH CAROLINASCALE: 1" = 1'-0"TYP. STAIR ON GRADE16SCALE: 3/4" = 1'-0"TYP. EXHAUST RISER DISCHARGE18CROSS SECTION VIEWSCALE: 1" = 1'-0"TYP. PLENUM BOX19PLAN VIEW10/18/23FOR NCDEQ REVIEW12/14/23112/14/23REVISED FOR NCDEQ REVIEWDHSCALE: 1" = 1'-0"TYP. RETAINING WALL20 APPENDIX E VIMS Product Information Geo-Seal® EV40 Product Data Sheet EPRO Services, Inc. (800) 882-1896 eproinc.com v2.03.23 Product Description Basic Use: Geo-Seal EV40 is a standalone geocomposite EVOH passive barrier system used to mitigate vapor intrusion for sites deemed to be low risk. Geo-Seal EV40 may also be used in conjunction with an active sub-slab mitigation to increase system efficiency and provide an additional layer of redundancy. Geo-Seal CORE, , a specially formulated asphalt emulsion, is applied within the Geo-Seal EV40 seam overlap, around pipe penetrations, and at termination, points to eliminate the need for costly tape. Combining a sheet membrane with spray- applied detailing helps increase installation efficiency while also ensuring a robust seal in critical areas. Composition: Geo-Seal EV40 is a 41-mil composite EVOH geomembrane with a 3 oz. geotextile bonded to one side to increase tensile and puncture strength. Geo-Seal EV40 also exceeds all Class A, B, and C vapor barrier requirements. Benefits • EVOH geocomposite sheet membrane provides increased thickness and robustness over similarly priced sheet membranes. • Geotextile backing enhances tensile strength and puncture resistance, while also increasing seam strength and durability. Taped seams’ integrity can be compromised in cold or wet conditions. • Geo-Seal EV40 is smoke tested to ensure proper installation. • Meets class A, B, and C vapor barrier standards. Limitations • A more robust composite system should be utilized for sites with elevated risk or more complex applications as thinner mil vapor intrusion barriers are less durable and less puncture resistant than thicker composite systems offered by EPRO. • Additional geotextile may be required to cushion the Geo- Seal EV40s system from additional aggregate layers. Technical Data Properties: See physical properties table Coverages: One roll covers 1200 square feet, not including overlaps or waste Specification Writer: Contact EPRO before writing specifications on this product Installation Preparation: Please refer to manufacturer’s specifications for substrate requirements. Rolls should be inspected for damage prior to application. Application: Please refer to manufacturer’s specifications. Overlap the seams of Geo-Seal EV40 a minimum of 6” and with a 60 mil application of Geo-Seal CORE in the seam overlap. Availability and Packaging Contact a local EPRO installer or authorized applicator (www.eproinc.com). Roll Size: 12’ x 100’ unfolded rolls, 165 lbs. Warranty Limited Warranty: EPRO Services, Inc. believes to the best of its knowledge that performance tables are accurate and reliable. EPRO warrants this product to be free from defects. EPRO makes no other warranties with respect to this product, express or implied, including without limitation the implied warranties of MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE. EPRO’s liability shall be limited in all events to supplying sufficient product to repair the specific areas to which defective product has been applied. EPRO shall have no other liability, including liability for incidental or resultant damages, whether due to breach of warranty or negligence. This warranty may not be modified or extended by representatives of EPRO or its distributors. Equipment Seaming: AD-55 Sprayer, available through EPRO for application of Geo-Seal CORE in seam overlaps. Smoke Testing: EPRO Smoke Test Machine for underslab applications Technical Services and Information Complete technical services and information are available by contacting EPRO at 800.882.1896 or www.eproinc.com. Geo-Seal® EV40 Product Data Sheet EPRO Services, Inc. (800) 882-1896 eproinc.com v2.03.23 Physical Property Test Method Value Film Material .....................................................................................................................................Polyethylene & EVOH Film Color ..........................................................................................................................................White/Blue Weight................................................................................................................................................618 g/m² Film Thickness ...................................................................................................................................41 Mil Classification .......................................................ASTM E1745 ........................................................Class A, B & C Water Vapor Permeance ...................................ASTM E96 ............................................................0.0098 perms Tensile Strength ..................................................ASTM D882 ..........................................................71 lbf Elongation ...........................................................ASTM D882 ..........................................................735% Puncture Resistance ...........................................ASTM D4833 ........................................................85 lbs Life Expectancy ...................................................ASTM E154 ..........................................................Infinite Low Temp. Impact ..............................................ASTM D1790 ........................................................Resistant to 105° C Methane Gas Permeance .................................ASTM D1434 ........................................................3.68 x 10-12 m/s Benzene Gas Permeance ..................................Queens University1 .............................................1.13 x 10-10 m2/sec TCE Gas Permeance ..........................................Queens University1 .............................................7.66 x 10-11 m2/sec PCE Gas Permeance ..........................................Queens University ..............................................7.22 x 10-11 m2/sec Ethylbenzene Permeance ..................................Queens University1 .............................................1.23 x 10-10 m2/sec Toluene Permeance............................................Queens University1 .............................................1.57 x 10-10 m2/sec Radon Diffusion Coefficient...............................K124/02/95 ..........................................................7.22 x 10-11 m2/sec PCE Gas Diffusion ..............................................GeoKinetics2 ........................................................1.10 x 10-15 m2/sec 1 Queens University testing results are not directly comparable to other permeation/diffusion testing methods. 2 Test period longer than 380 days. Dimensions: 12’ x 100’ Weight: 165 lbs. Typical Physical Properties Ó2019 EPRO Services, Inc. 1 VAPOR-VENT LOW PROFILE SUB-SLAB VAPOR COLLECTION SYSTEM SECTION 02 56 16 – GAS CONTROL PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the contract, including general and supplementary conditions, and Division 1 specification section, apply to this section. 1.2 SECTION INCLUDES A. The installation of materials designed to provide a sub-slab vapor collection system to eliminate the buildup of contaminant vapors under a structure, this section includes the following: 1. Surface preparation and substrate treatment 2. Vapor-Vent low profile vent fittings 3. Vent riser installation stub up 1.3 RELATED SECTIONS A. Section 02 24 00: Environmental Assessment B. Section 02 32 00: Geotechnical Investigation C. Section 03 15 00: Concrete Accessories D. Section 03 30 00: Cast-in-Place Concrete E. Section 03 40 00: Precast Concrete F. Section 07 90 00: Joint Protection G. Section 31 30 00: Earthwork Methods 1.4 PERFORMANCE REQUIREMENTS A. General: Provide a venting material that collects contaminant vapors and directs them to discharge, or to collection points, as specified in the vapor mitigation drawings and complies with the physical requirements set forth by the manufacturer. 1.5 SUBMITTALS A. Product Data: Submit manufacturer's printed technical data, and tested physical and performance properties. B. Shop Drawings: Project specific drawings showing related transitions from flat Vapor-Vent pipe to circular pipe. C. Samples: Submit a sample of each, if required: Ó2019 EPRO Services, Inc. 2 1. Vapor-Vent 2. Vapor-Vent End Out. D. Applicator Certification: Submit written confirmation at the vapor collection installer is currently approved by the membrane manufacturer. 1.6 QUALITY ASSURANCE A. Applicator Qualifications: Mitigation system applicator shall be an EPRO Authorized Applicator who is trained and abides to EPRO standards and policies. B. Third Party Inspection: Independent inspection of the vapor intrusion barrier may be required based on project conditions and desired warranty coverage, or as required based on local building code/government agency jurisdiction. Inspection reports shall be submitted directly to the vapor intrusion barrier manufacturer and made available to other parties per the owner’s direction. C. Pre-Construction Meeting: A meeting shall be held prior to application of the vapor intrusion barrier system to assure proper substrate preparation, confirm installation conditions, and any additional project specific requirements. D. Materials: Vapor collection system and vapor intrusion barrier materials and system shall be single sourced by a manufacturer specializing in vapor intrusion barriers. 1.7 DELIVERY, STORAGE AND HANDLING A. Delivery: Deliver materials to site labeled with manufacturer's name, product brand name, material type, and date of manufacture. Upon the arrival of materials to the jobsite, inspect materials to confirm material has not been damaged during transit. B. Storage: Proper storage of materials is the responsibility of the certified applicator. Consult product data sheets to confirm storage requirements. Protect stored materials from direct sunlight. C. Disposal: Remove and replace any material that cannot be properly applied in accordance with local regulations and specification section 01 74 19. 1.8 PROJECT CONDITIONS A. Substrate Review: Substrates shall be reviewed by the certified applicator, engineer of record, and accepted prior to application. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Acceptable Manufacturer: EPRO Services, Inc. (EPRO), P.O. Box 347; Derby, KS 67037; Tel: (800) 882-1896; Email: Info@eproinc.com; Web: www.eproinc.com B. Basis of Design: Vapor-Vent C. Approved Alternative: e.vent Ó2019 EPRO Services, Inc. 3 2.2 VAPOR COLLECTION MATERIALS 1. Vapor-Vent: Vapor-Vent features a lightweight three-dimensional, highly flexible polypropylene core and a non-woven geotextile filter fabric. The filter fabric is bonded to the dimples of the polypropylene core to prevent clogging within the vent. PROPERTIES TEST METHOD VALUE DIMPLED CORE Core Material Polypropylene Color Black Compressive strength ASTM D 1621 9,500 PSF (455 kN/m²) Thickness ASTM - 1777 1 in. Flow rate ASTM D 4716 30 gpm./ft. of width FILTER FABRIC CBR puncture ASTM D 6241 250 lbs. Grab tensile strength ASTM D 4632 100 lbs AOS ASTM D 4751 70 U.S. sieve Permitivity ASTM D 4491 2.0 sec -1 Flow rate ASTM D 4491 140 gpm./ft² UV resistance ASTM D 4355 70% (500 hrs.) Dimensions: 165' x 12" x 1" Weight: 65 pounds 2.3 AUXILIARY MATERIALS A. General: All accessory products shall be provided by the specified vapor intrusion barrier manufacturer. Auxiliary products used in lieu of, or in addition to, the manufactures products must be approved in writing by the manufacturer prior to installation. B. Vapor-Vent Fittings: Transition low profile venting to Vapor-Vent End Out in order to properly transition to specified round pipe. C. Reinforcement Tape: e.tape should be used when securing Vapor-Vent to fittings and at transition joints. PART 3 - EXECUTION 3.1 EXAMINATION A. Comply with project documents, manufacturer’s product information, including product installation guidelines and pre-job punch list. 3.1.2 IDENTIFY LOW PROFILE VENT LAYOUT A. Identify and mark the layout of the low-profile vent material according the vapor mitigation plans developed by the engineer of record. 3.2 LOW PROFILE VENT INSTALATION A. General: Install Vapor-Vent over substrate material where designated on drawings. The flat base of the inner core shall be placed up, facing the installer. Seams shall be overlapped in accordance with manufacturer’s recommendations. Ó2019 EPRO Services, Inc. 4 B. Intersection: At areas where low profile vent intersects, cut and fold back fabric to expose the dimpled core. Arrange the strips so that the top strip interconnects into the bottom strip in an interlocking fashion. Unfold fabric to cover the core and use e.tape to seal the connection to prevent sand or gravel from entering the core. C. Footings and Grade Beams: When crossing low-profile over footings or grade beams, a solid pipe sleeve may be required to keep the vapor collection system continuous. The solid pipe sleeve will be placed on top of, or through, the desired transition area. Once the solid pipe sleeve is in place, attach a Vapor-Vent End Out fitting on either side of the solid pipe and seal the low profile vent to the Vapor-Vent End Out. Consult with engineer of record and structural engineer for appropriate use and placement of sold pipe sleeve. D. Vent Risers: Place vent risers per the vapor mitigation plans, or as directed by the engineer of record. Connect the low-profile vent to Vapor-Vent End Out and seal with e.tape. An additional reducer may be required to transition the 4” diameter end out fitting to the specified diameter vent riser. 3.2.1 PLACEMENT OF OVERBURDON A. If placing overburden over the vapor collection system take care to prevent damage to the venting material. B. Heavy equipment shall not be driven over the low-profile pipe. C. Do not penetrate the vapor collection system once it is installed. End of Section ©2020 EPRO Services, Inc. EproGSEV80.VB.v1.08.20gs 1 Applications: Slab On Grade Gas Containment Vapor Intrusion Barrier With Spray Applied Seams Spec Version: EproGSEV80.VB.v1.08.20gs Date issued: September 22, 2020 Note: This specification may be superseded at any time. Check eproinc.com for the most up to date version of this specification. SECTION 02 56 16 GAS CONTAINMENT SECTION 02 56 19.13 FLUID APPLIED GAS BARRIER Geo-Seal EV40S EVOH Vapor Intrusion Barrier Guide Specification Slab On Grade Geo-Seal EV40s is comprised of an EVOH membrane combined with a robust geotextile layer to provide a sheet membrane that is highly chemically resistant, easy to install, while also providing better protection during the installation process. Geo-Seal EV40s utilizes Geo-Seal CORE spray membrane to seal seams, detail penetrations, and terminate the membrane to concrete surfaces. This guide specification has been prepared according to the principles established in the Manual of Practice published by the Construction Specification Institute. Note: If areas will be subjected to water and/or hydrostatic conditions, contact EPRO for appropriate system recommendations. For additional questions, your local EPRO technical representative can be contacted through: EPRO Services, Inc., Wichita KS; 1.800.882.1896; www.eproinc.com. ©2020 EPRO Services, Inc. EproGSEV80.VB.v1.08.20gs 2 GEO-SEAL EV40S SLAB ON GRADE EVOH VAPOR INTRUSION BARRIER WITH SPRAY APPLIED SEAMS SPECIFICATION VERSION 1.0 SECTION 02 56 16 – GAS CONTAINMENT SECTION 02 56 19.13 – FLUID-APPLIED GAS BARRIER PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the contract, including general and supplementary conditions, and Division 1 specification section, apply to this section. 1.2 SECTION INCLUDES A. The installation of materials designed to provide vapor intrusion protection when installed per project specification, this section covers the methane mitigation and vapor intrusion membrane, along with the following: 1. Surface preparation and substrate treatment 2. Auxiliary materials 3. Prefabricated drainage mat (if applicable) 4. Foundation drain (if applicable) 1.3 RELATED SECTIONS A. Section 02 24 00: Environmental Assessment B. Section 02 32 00: Geotechnical Investigation C. Section 03 15 00: Concrete Accessories D. Section 03 30 00: Cast-in-Place Concrete E. Section 03 40 00: Precast Concrete F. Section 07 90 00: Joint Protection G. Section 31 30 00: Earthwork Methods H. Section 33 41 00: Subdrainage 1.4 PERFORMANCE REQUIREMENTS A. General: Provide a vapor mitigation system that prevents the passage of methane gas, contaminant vapors including chlorinated solvents and petroleum hydrocarbons, and complies with the physical requirements as demonstrated by testing performed by an independent testing agency. ©2020 EPRO Services, Inc. EproGSEV80.VB.v1.08.20gs 3 1.5 SUBMITTALS A. Product Data: Submit manufacturer's printed technical data, tested physical and performance properties, instructions for evaluating, preparing, and treating substrates, and installation instructions. B. Shop Drawings: Project specific drawings showing locations and extent of vapor intrusion barrier system, details for overlaps, penetrations, transitions, and termination conditions. C. Samples: Submit two standard size samples of the each of the following: 1. Individual components of the specified vapor intrusion barrier system. D. Applicator Certification: Submit written confirmation at the time of bid that applicator is currently approved by the membrane manufacturer. 1.6 QUALITY ASSURANCE A. Applicator Qualifications: System applicator shall be an EPRO Authorized Applicator who is trained to perform work that in accordance with EPRO standards and policies. B. Manufacturer Qualification: Obtain vapor intrusion barrier materials and system components from a single manufacturer source, EPRO. Manufacturer must have 20 years of experience in the manufacture of vapor intrusion barrier systems. C. Third Party Inspection: Independent inspection of the system installation may be required based on project conditions and desired warranty coverage, or as required based on local building code/government agency jurisdiction. Inspection reports shall be submitted directly to the vapor intrusion barrier manufacturer and made available to other parties per the owner’s direction. D. Pre-Construction Meeting: A meeting shall be held prior to application of the barrier system to assure proper substrate preparation, confirm installation conditions, and any additional project specific requirements. Attendees of the meeting shall include, but are not limited to the following: 1. EPRO authorized applicator 2. Third party inspector 3. General contractor 4. Owner’s representative 5. Architect and Engineer 6. Concrete/Shotcrete contractor 7. Rebar contractor 8. All appropriate related trades E. Field Sample: Apply vapor intrusion barrier system field sample to 100 ft2 (9.3 m2) of each assembly to demonstrate proper application techniques and standard of workmanship. ©2020 EPRO Services, Inc. EproGSEV80.VB.v1.08.20gs 4 1. Notify membrane system manufacturer’s representative, architect, certified inspector, and other appropriate parties one week in advance of the dates and times when field sample will be prepared. 2. If architect and certified inspector determines that field sample does not meet requirements; reapply membrane system until field sample is approved. 3. Retain and maintain approved field sample during construction in an undisturbed condition as a standard for judging the completed membrane system. An undamaged field sample may become part of the completed work. 1.7 DELIVERY, STORAGE AND HANDLING A. Delivery: Deliver materials to site labeled with manufacturer's name, product brand name, material type, and date of manufacture. Upon the arrival of materials to the jobsite, inspect materials to confirm material has not been damaged during transit. B. Storage: Proper storage of onsite materials is the responsibility of the certified applicator. Consult product data sheets to confirm storage requirements. Storage area shall be clean, dry, and protected from the elements. If ambient air temperatures are expected to fall below 40F, precautions will need to be taken to protect any emulsion product from near freezing temperatures. Protect stored materials from direct sunlight. C. Disposal: Remove and replace any material that cannot be properly applied in accordance with local regulations and specification section 01 74 19. 1.8 PROJECT CONDITIONS A. Substrate Review: Substrates shall be reviewed and accepted by the certified applicator and independent inspector prior to application. B. Penetrations: All plumbing, electrical, mechanical, and structural items to be passing through the membrane system shall be properly spaced, positively secured in their proper positions, and appropriately protected prior to system application and throughout the construction phase. Braided grounding rods are not allowed to pass through the vapor intrusion barrier. C. Reinforcement Steel and Concrete Forms: Vapor intrusion barrier shall be installed before placement of reinforcing steel. When penetrations post system installation occurs, it is the responsibility of the general contractor to notify the vapor intrusion barrier applicator to immediately make repairs prior to the placement of overburden, this includes the use of solid plastic “VaporStakes” used to secure concrete forms. D. Clearance: Minimum clearance of 24 inches is required for application of spray applied polymer modified asphalt, Geo-Seal CORE. For areas with less than 24-inch clearance, the product may be applied by hand using Geo-Seal CORE Detail. E. Overspray: Protect all adjacent areas not receiving the barrier application. Masking is necessary to prevent unwanted overspray from adhering to, or staining, areas not receiving the membrane. Once Geo-Seal CORE adheres to a surface it is extremely difficult to remove. F. Weather Limitations: Perform work only when existing and forecast weather conditions are within manufacturer's recommendations. ©2020 EPRO Services, Inc. EproGSEV80.VB.v1.08.20gs 5 1. Spray Applied Polymer Modified Asphalt Membrane: Minimum ambient temperature should be 40F (7C) and rising. For applications temperatures below 38F, but greater than +19ºF/-7ºC, special equipment and material handling is required. Substrate shall be clean and free from standing moisture. 2. EPRO applicators reserve the right not to install product when application conditions might be within manufactures acceptance, but ambient conditions may limit a successful application. 1.9 WARRANTY A. Special Warranty: Submit a written warranty signed by vapor intrusion barrier manufacturer agreeing to replace system materials that do not conform to manufacturer’s published specifications or are deemed to be defective. Warranty does not include failure of vapor intrusion barrier due to failure of soil substrate prepared and treated according to requirements or formation of new joints and cracks in the concrete that exceed 1/8 inch (3.175 mm) in width. 1. Warranty Period: 1 years after date of substantial completion. Longer warranty periods are available upon request. 2. Coverage: Manufacturer will guarantee that the material provided is free of defects for the warranty period. B. Additional Warranty Options: Upgraded warranties are available by contacting the manufacturer. These warranties may have additional requirements and approval must be granted in accordance to the manufacturer’s warranty requirements. Additional warranty options include: 1. Waterproofing Warranties: For below grade projects that require vapor intrusion barriers and below grade waterproofing for foundation walls, single source warranties are available from EPRO. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Acceptable Manufacturer: EPRO Services, Inc. (EPRO), P.O. Box 347; Derby, KS 67037; Tel: (800) 882-1896; www.eproinc.com B. Basis of Design: Geo-Seal EV40s (41 mils) – Geo-Seal EV40, Geo-Seal CORE (for detailing seams, terminations and penetrations) 2.2 VAPOR INTRUSION BARRIER MATERIALS A. EVOH Geocomposite Sheet Membrane 1. Geo-Seal EV40: Geo-Seal EV40 is an extremely durable, high strength base course made from the lamination of EVOH film and nonwoven polypropylene geotextile fabric. PROPERTIES TEST METHOD VALUE Film Material Polyethylene & EVOH Film Color White/Blue Fabric Material Non-woven Polypropylene Fabric Color White Thickness 41 Mil Weight 618 g/m2 Classification ASTM E1745 Class A, B & C ©2020 EPRO Services, Inc. EproGSEV80.VB.v1.08.20gs 6 Water Vapor Transmission ASTM E96 0.033 perms Water Permeance ASTM E96 0.0098 perms (US) Tensile Strength ASTM D882 61 lbf Puncture Resistance ASTM D1709 2600 grams Life Expectancy ASTM E 154 Infinite Low Temperature Impact ASTM D 1790 Resistant to 105 C Methane Gas Permeance ASTM D1434 3.68 x 10-12 m/s Benzene Vapor Permeance Queens University 1.13 x 10-10 m2/s TCE Vapor Permeance Queens University 7.66 x 10-11 m2/s PCE Vapor Permeance Queens University 7.22 x 10-11 m2/s Weight: 165 pounds Dimensions: 12” x 100' B. Polymer Modified Asphalt 1. Geo-Seal CORE: Geo-Seal CORE is a non-hazardous, low-viscosity, water-based, anionic asphalt emulsion modified with a blend of synthetic polymerized rubbers and proprietary additives. Geo-Seal CORE is highly stable during transit and when properly stored but becomes highly reactive during the spray application to form a rapidly cured membrane with exceptional bonding, elongation, and hydrophobic characteristics. PROPERTIES TEST METHOD VALUE Color Brown to Black Solvent Content No Solvents Shelf Life 6 months Tensile Strength ASTM 412 32 psi Elongation ASTM 412 4140% Resistance to Decay ASTM E 154 Section 13 4% Perm Los Accelerated Aging ASTM G 23 No Effect Moisture Vapor Transmission ASTM E 96 0.026 g./sq. ft./hr. Hydrostatic Water Pressure ASTM D 751 26 psi Perm Rating ASTM E 96 (US Perms) 0.21 Methane Transmission Rate ASTM D 1434 0 Adhesion to Concrete & Masonry ASTM C 836 & C 704 20 lbf./inch Adhesion to HDPE ASTM C 836 28.363 lbf./inch Adhesion to Polypropylene Fabric ASTM C 836 31.19 lbf./inch Hardness ASTM C 836 80 Crack Bridging ASTM C 836-00 No Cracking Low Temp. Flexibility No Cracking at -20° C Packaging: 55 gallon drum, 275 gallon tote, 330 gallon tote 2. Geo-Seal CORE Detail: Geo-Seal CORE Detail is single component, medium viscosity, water-based, polymer-modified anionic asphalt emulsion, which exhibits exceptional bonding, elongation and hydrophobic characteristics. PROPERTIES TEST METHOD VALUE Color Brown to Black Solvent Content No Solvents Shelf Life 6 months Tensile Strength ASTM 412 32 psi Elongation ASTM 412 3860% Resistance to Decay ASTM E 154 SECTION 13 9% Perm Loss Accelerated Aging ASTM G 23 No Effect ©2020 EPRO Services, Inc. EproGSEV80.VB.v1.08.20gs 7 Moisture Vapor Transmission ASTM E 96 0.071 g/sq. ft./hr. Hydrostatic Water Pressure ASTM D 751 28 psi Perm Rating ASTM E 96 (US Perms) 0.17 Methane Transmission Rate ASTM D 14334 0 Adhesion to Concrete & Masonry ASTM C 836 1 lbf/inch Hardness ASTM C 836 85 Crack Bridging ASTM C 836 No Cracking Low Temp. Flexibility ASTM C 836-00 No Cracking at -20° C Packaging: 5 gallon bucket 2.3 AUXILIARY MATERIALS A. General: All accessory products shall be provided by the specified vapor intrusion barrier manufacturer. Auxiliary products used in lieu of, or in addition to, the manufactures products must be approved in writing by EPRO prior to installation. B. Reinforcement Fabric: Manufacturer’s polyester fabric, Geo-Seal Reinforcement Fabric is available in 6 inch, 12 inch, and 40 inch widths. C. Detailing Material: Geo-Seal CORE Detail, a roller applied, water based, high viscosity, polymer modified asphaltic material. D. Backer Rod: Closed cell polyethylene foam E. Termination Bar: e.term hd, or approved alternate. PART 3 - EXECUTION 3.1 EXAMINATION A. Comply with project documents, manufacturer’s product information, including product application and installation guidelines, pre-job punch list, as well as, manufacturer’s shipping and storage recommendations. 3.1.2 SURFACE PREPARATION A. The general contractor shall engage the certified vapor intrusion barrier contractor and certified inspector to ensure surfaces are prepared in accordance with manufacturer’s instructions. Unless, explicitly stated in the contract documents, the vapor intrusion barrier contractor is not responsible for surface preparation. B. Examine all substrates, areas, and conditions under which the membrane system will be installed, applicator and inspector must be present. Do not proceed with installation until unsatisfactory conditions have been corrected and surface prepration requirements have been met. If conditions exist that are not addressed in this section, notify inspector and contact EPRO for additional clarification. C. Soil and Sand Substrates: Native soil and sand substrates shall be uniformly compacted to meet structural and building code requirements. All surfaces shall be free from protrusions and debris that may compromise the membrane system. Free standing water must be removed prior to application. ©2020 EPRO Services, Inc. EproGSEV80.VB.v1.08.20gs 8 D. Aggregate Substrates: Aggregate substrates shall be compacted to meet structural and building code requirements and then rolled flat to provide a uniform substrate. ¾ inch minus aggregate with no more than one fractured face is recommended, but other aggregates substrates may be approved by the manufacturer provided they do not create sharp angular protrusions that may compromise the vapor intrusion system. E. Working Slab: Mud slab, rat slab, or other concrete working slab shall have a uniform plane with a light broom or light trowel finish. F. Concrete Surfaces: Clean and prepare concrete surface to manufacturer’s recommendations. In general, only apply the Geo-Seal CORE material to dry, clean and uniform concrete substrates with a light trowel, light broom, or equivalent finish. G. Cast-in-Place or Shotcrete Walls: Application to green concrete is acceptable provided the substrate is prepared in accordance with manufacturers specifications and published instructions. 1. Provide clean, dust-free, and dry substrate for vapor intrusion barrier application. 2. Surfaces shall be power washed to remove grease, oil, form release agents, or any other penetrating contaminants from the concrete. 3. Remove all fins, ridges, and other protrusions. 4. Fill honeycomb, aggregate pockets, tie holes, and other voids with hydraulic cement, or rapid-set grout. 3.2 VAPOR INTRUSION BARRIER INSTALLATION A. General: The underslab vapor intrusion system shall be installed under strict accordance with the manufacturer’s guidelines and project specifications. 3.2.2 EVOH GEOCOMPOSITE SHEET MEMBRANE – GEO-SEAL EV40 A. Whenever possible roll out Geo-Seal EV40 in the same direction over the substrate with geotextile side facing down, away from the installer. When multiple pours will occur, extend the Geo-Seal EV40 a minimum of 2 feet past the pour joint. B. Overlap Geo-Seal EV40 a minimum of 6 inches. C. At the seam overlap, peel back the top layer of Geo-Seal EV40 and apply 60 mils into the overlapping seam, making certain to apply Geo-Seal CORE to both the top of the bottom sheet and the bottom of the top sheet. Embed the top sheet into the bottom sheet. D. Visually verify there are no gaps/fish-mouths in seams. 3.2.3 POLYMER MODIFED ASPHALT MEMBRANE – GEO-SEAL CORE A. Mask off adjoining surfaces where unwanted Geo-Seal CORE polymer modified asphalt membrane may be exposed on finished surfaces or impact other construction trades. B. Commence application of Geo-Seal CORE polymer modified asphalt when ambient air temperatures are within manufacturer recommendations. C. Surfaces that will receive the membrane must be clean and free from standing moisture. D. Start installing Geo-Seal CORE in presence of approved 3rd party inspector or required city inspector. ©2020 EPRO Services, Inc. EproGSEV80.VB.v1.08.20gs 9 E. Apply one application of Geo-Seal CORE membrane in accordance to manufacturer’s instructions in order to obtain a seamless membrane with a minimum dry film thickness of 60 mils (1.5 mm). F. Apply Geo-Seal CORE/Geo-Seal CORE Detail in and around penetrations and cavities to ensure the formation of monolithic seal around all penetrations. G. Apply Geo-Seal CORE/Geo-Seal CORE Detail to prepared wall terminations and vertical surfaces to heights indicated according to manufacturer’s recommendations and details. (if applicable) 3.2.4 TERMINATION SEQUENCE A. System Termination: The termination process is appropriate for terminating the membrane onto exterior footings, pile caps, interior footings and grade beams. When terminating the membrane to stem walls or vertical surfaces the same process should be used. 1. Concrete surfaces that are not a light trowel, light broom or equivalent finish, will need to be repaired. 2. Terminations on horizontal and vertical surfaces should extend 6” onto the termination surface. Job specific conditions may prevent a 6” termination. 3. Apply 60 mils of Geo-Seal CORE to the terminating surface and then embed the Geo- Seal EV40 layer by pressing it firmly into the Geo-Seal CORE layer. 4. Apply 30 mils of Geo-Seal CORE over the edge of termination. For further clarification, refer to the termination detail provided by the manufacturer. 3.2.5 SEALING OF PENETRATIONS A. Sealing of Standard Pipe Penetrations: Prepare membrane penetrations so they are free of any material that will inhibit a direct bond to the penetration surface: foam, insulation, protective coatings, etc. 1. Trim Geo-Seal EV40 to within 1/8 inch of the penetration. 2. Apply Geo-Seal CORE Detail 3 inches horizontally and 3 inches vertically around the base of the penetration. 3. Embed Geo-Seal Reinforcement Fabric reinforcement fabric 3 inches horizontally and 3 inches vertically around the base of the penetration. 4. Apply a second layer of Geo-Seal CORE Detail to reinforcement fabric until the reinforcement fabric is fully saturated. Secure Geo-Seal Reinforcement Fabric reinforcement fabric to penetration with a cable tie. For further clarification, refer to the termination detail provided by manufacturer. 3.3 FIELD QUALITY CONTROL A. Smoke Test: Conduct smoke test on all underslab areas upon installation of the Geo-Seal EV40 sheet, the sealing of all penetrations, terminations, and sheet membrane overlaps. All deficient areas shall be noted, marked for repair, and repairs verified. Refer to manufactures smoke testing protocol for additional guidance. B. Field Inspection: Contact EPRO for independent certification process. ©2020 EPRO Services, Inc. EproGSEV80.VB.v1.08.20gs 10 C. Take care to prevent contamination and damage during application stages and curing. Machinery, additional trades, or general construction shall NOT take place over the membrane until inspection is complete and concrete has been placed. The membrane shall always be properly protected when equipment is operated near the membrane. D. Prevent damage during the placement of reinforcement steel and overburden. E. Damage Observation: Prior to the placement of concrete a visual inspection to confirm no damage has occurred from construction traffic or during the placement of reinforcement steel is recommended. 3.4 REPAIRS A. Underslab: 1. Inspect damaged area to determine which system components have been damaged. 2. If the Geo-Seal EV40 sheet has not been compromised, patch only the areas that have been damaged by re-installing the damaged materials. The patch should extend 6 inches beyond the damaged area in all directions. 3. If the Geo-Seal EV40 sheet has been breached but no additional system components have been installed, install a patch below and above the base sheet that extends 6 inches beyond the damaged area. Area shall be sealed using the specified method for sealing the base sheet. 4. Refer to manufacturer’s detail for further repair clarification. End of Section (800) 882-1896 info@eproinc.com eproinc.com System: Geo-Seal Vapor Intrusion Barrier (Patent Protected - US 7,985,460 B2) Application: Underslab Containment Vapor Barrier System Thickness: 96 mils 1st Layer 2nd Layer 3rd Layer Product Name Geo-Seal (geotextile/HDPE) 18 mil Geo-Seal CORE 60 mil Geo-Seal (HDPE/geotextile 18 mil DESCRIPTION Geo-Seal® is an innovative sub-slab vapor intrusion barrier system that eliminates vapor intrusion for brownfields or any environmentally-impaired site. With more than 50 million square feet installed, the patented Geo-Seal system has been in use for over a decade. Installed between the foundation slab of the building and the soil pad, Geo-Seal eliminates vapor intrusion pathways and stops contaminant vapors from permeating through the slab and into a building. Fully tested and proven highly effective against VOC vapor such as chlorinated solvents and petroleum hydrocarbons, as well as methane gas, Geo-Seal earns wide approval among various regulatory agencies. Geo-Seal provides peace of mind knowing that a healthy indoor environment will keep occupants safe while also significantly reducing remediation costs and speeding site construction. BENEFITS • Redundant: Three layers of complementary containment vapor barrier materials create a redundant composite system superior single-component alternatives. • Chemical Resistant Materials: Made from highly chemical resistant HDPE and polymer modified asphaltic membrane. • Seamless: Spray-applied Core layer ensures complete sealing of the system without the use of mechanical fastening. • Bonded: Mechanically bonds directly to the foundation slab. • Proven: Industry standard and proven technology, with 10+ years and over 50 million square feet installed • Single-Source Warranty: Combine with EPRO below-grade and deck waterproofing and contaminant vapor intrusion. LIMITATIONS • Do not apply below 20°F or to damp, frosty or contaminated surfaces. • Not designed to function as waterproofing. Contact EPRO for waterproofing system recommendations. Vapor Intrusion Management Technology Geo-Seal Bond (HDPE/Geotextile) Geo-Seal Core(spray applied polymer modified asphaltic membrane) Geo-Seal Base (Geotextile/HDPE) Vapor-Vent System (800) 882-1896 info@eproinc.com eproinc.com Vapor Intrusion Management Technology SPECIFICATIONS, DRAWINGS, AND TECHNICAL ASSISTANCE The most current specifications and drawings can be found on www.eproinc.com. For project specific details contact EPRO directly, or your local EPRO representative. Site conditions, performance goals, and budget determine which system is most appropriate for a given project. For more information regarding product performance, testing, plan review, or general technical assistance, please contact EPRO. WARRANTY EPRO provides a wide range of warranty options for Geo-Seal systems. For a project to be eligible for any warranty option beyond a 1-year material warranty, a Geo-Seal Authorized Applicator must be used and the project must be registered and approved by EPRO prior to the commencement of any product application. Warranty options available for this system include: • Material warranty • Labor and Material Warranty • Longer warranty periods are available. Contact EPRO for more information. Physical Property Test Method Value Tensile Strength ..................................................ASTM D 412 .........................................................662 psi Elongation ...........................................................ASTM D 412 .........................................................45% Adhesion to Concrete ........................................ASTM D 903 .........................................................8 lbf/in Puncture Resistance ...........................................ASTM D 4833.......................................................139 lbs Hydrostatic Head Resistance ............................ASTM D 5385.......................................................100 psi (231 ft) Water Vapor Transmission ................................ASTM E 96 ...........................................................0.033 perms Soil Burial ............................................................ASTM D 4068.......................................................Passed Heat Aging ..........................................................ASTM D 4068.......................................................Passed Environmental Stress Cracking ..........................ASTM D 1693.......................................................Passed Oil Resistance .....................................................ASTM D 543 & D 412 ..........................................Passed Methane Transmission .......................................ASTM D 1434.......................................................Passed TCE Diffusion Rate ............................................................................................................................7.1 x 10-19 m2/sec Benzene Diffusion Rate ....................................................................................................................7.1 x 10-19 m2/sec v.2.0323 E.DRAIN GEO-SEAL FILM 11 GEO-SEAL CORE 60 MIL GEO-SEAL REINFORCEMENT DETAIL w/GEO-SEAL CORE 30 MIL w/REINFORCING FABRIC w/GEO-SEAL CORE 30 MIL 6" CENTERED OVER SEAM TERM BAR WITH ANCHOR AS A SUPPLIER OF FINISHED RPODUCTS ONLY, EPRO SERVICES, INC. DOES NOT ASSUME RESPONSIBILITY FOR ERRORS IN DESIGN, ENGINEERING OR DIMENSIONS.THE PROJECT TEAM MUST VERIFY ALL DIMENSIONS AND SUITABILITY OF DETAILS. THE PRODUCTS LISTED ARE TRADEMARKS OF EPRO SERVICES, INC.PAGE 1 OF 1 1328 E. KELLOGG DRIVE WICHITA, KS 67211 1-800-882-1896 EPROINC.COM 10/18/2021 RJT NTS DRAWN BY SCALE DATE WALL TERMINATION AT GRADE SYSTEM DESCRIPTION GEO-SEAL SYSTEM NAME 40.230.1-MOD DRAWIMG NUMBER G:\My Drive\Epro Master Folder\Drafting\_Job Specific\Detail Requests\T\The Hub Atlanta\40.230.1-MOD GEO-SEAL WALL TERMINATION AT GRADE.dwg [Detail] October 18, 2021 - 9:27am ZIP TIE E.DRAIN GEO-SEAL FILM 11 3" 3" GEO-SEAL REINFORCEMENT DETAIL w/GEO-SEAL CORE 30 MIL w/REINFORCING FABRIC w/GEO-SEAL CORE 30 MIL GEO-SEAL CORE 60 MIL AS A SUPPLIER OF FINISHED RPODUCTS ONLY, EPRO SERVICES, INC. DOES NOT ASSUME RESPONSIBILITY FOR ERRORS IN DESIGN, ENGINEERING OR DIMENSIONS.THE PROJECT TEAM MUST VERIFY ALL DIMENSIONS AND SUITABILITY OF DETAILS. THE PRODUCTS LISTED ARE TRADEMARKS OF EPRO SERVICES, INC.PAGE 1 OF 1 1328 E. KELLOGG DRIVE WICHITA, KS 67211 1-800-882-1896 EPROINC.COM 10/18/2021 RJT NTS DRAWN BY SCALE DATE WALL PIPE PENETRATION SYSTEM DESCRIPTION GEO-SEAL SYSTEM NAME 40.123.1-MOD DRAWIMG NUMBER G:\My Drive\Epro Master Folder\Drafting\_Job Specific\Detail Requests\T\The Hub Atlanta\40.220.1-MOD GEO-SEAL WALL PIPE PENETRATION.dwg [Detail] October 18, 2021 - 9:26am GEO-SEAL REINFORCEMENT DETAIL w/GEO-SEAL CORE 30 MIL w/REINFORCEMENT FABRIC w/GEO-SEAL CORE 30 MIL E.DRAIN GEO-SEAL FILM 11 GEO-SEAL CORE 60 MIL 6" CENTERED OVER JOINT E.STOP B AS A SUPPLIER OF FINISHED RPODUCTS ONLY, EPRO SERVICES, INC. DOES NOT ASSUME RESPONSIBILITY FOR ERRORS IN DESIGN, ENGINEERING OR DIMENSIONS.THE PROJECT TEAM MUST VERIFY ALL DIMENSIONS AND SUITABILITY OF DETAILS. THE PRODUCTS LISTED ARE TRADEMARKS OF EPRO SERVICES, INC.PAGE 1 OF 1 1328 E. KELLOGG DRIVE WICHITA, KS 67211 1-800-882-1896 EPROINC.COM RJT NTS DRAWN BY SCALE DATE CONCRETE WALL AT COLD JOINT SYSTEM DESCRIPTION GEO-SEAL 100 SYSTEM NAME 40.212.1-MOD DRAWIMG NUMBER G:\My Drive\Epro Master Folder\Drafting\_Job Specific\Detail Requests\T\The Hub Atlanta\40.212.1-MOD CONCRETE WALL AT COLD JOINT.dwg [Detail] October 15, 2021 - 3:27pm 10/15/2021 REVISIONS ISSUED DATE DRAWING NO. THICKNESS OF EPRO PRODUCTS AREEXAGGERATED FOR CLARITY NOT TO SCALE AS A SUPPLIER OF FINISHED RPODUCTS ONLY, EPRO SERVICES, INC. DOES NOT ASSUME RESPONSIBILITY FOR ERRORS IN DESIGN, ENGINEERING OR DIMENSIONS. THE PROJECT TEAM MUST VERIFY ALL DIMENSIONS AND SUITABILITY OF DETAILS. THE PRODUCTS LISTED ARE TRADEMARKS OF EPRO SERVICES, INC. OLD REFERENCE SYSTEM E.PROFORMANCE WALL TO FOOTING COLD JOINT 10.2.17 1.261.1 E.ROLL 30 MIL E.STOP E.POLY E.ROLL 30 MIL CONCRETE WALL OR FILLED CMU BLOCK WALL REVISIONS DRAWING NO.AS A SUPPLIER OF FINISHED RPODUCTS ONLY, EPRO SERVICES, INC. DOES NOT ASSUME RESPONSIBILITY FOR ERRORS IN DESIGN, ENGINEERING OR DIMENSIONS. THE PROJECT TEAM MUST VERIFY ALL DIMENSIONS AND SUITABILITY OF DETAILS. THE PRODUCTS LISTED ARE TRADEMARKS OF EPRO SERVICES, INC. OLD REFERENCE SYSTEM E.POLY E.ROLL 30 MIL E.ROLL 30 MIL INSIDE & OUTSIDE CORNER DETAIL 8.4.17 ISSUED DATE THICKNESS OF EPROPRODUCTS AREEXAGGERATED FOR CLARITY NOT TO SCALE E.PROFORMANCE 1.260.1 REINFORCEMENT DETAIL E.ROLL 30 MILS O/ E.POLY O/ E.ROLL 30 MILS 3" 3" E.STOP B REINFORCEMENT DETAIL w/E.ROLL 30 MIL w/E.POLY w/E.ROLL 30 MIL GEO-SEAL CORE 60 MIL GEO-SEAL BASE E.DRAIN 6000 PAGE 1 OF 1AS A SUPPLIER OF FINISHED RPODUCTS ONLY, EPRO SERVICES, INC. DOES NOT ASSUME RESPONSIBILITY FOR ERRORS IN DESIGN, ENGINEERING OR DIMENSIONS.THE PROJECT TEAM MUST VERIFY ALL DIMENSIONS AND SUITABILITY OF DETAILS. THE PRODUCTS LISTED ARE TRADEMARKS OF EPRO SERVICES, INC.1328 E. KELLOGG DRIVE WICHITA, KS 67211 1-800-882-1896 EPROINC.COM 09/24/2020 RJT NTS DRAWN BY SCALE DATE WALL BOTTOM w/POSITIVE SIDE SYSTEM DESCRIPTION GEO-SEAL 100 SYSTEM NAME 40.201.1 DRAWIMG NUMBER G:\My Drive\Epro Master Folder\Drafting\Details\Walls\Geo-Seal 100\40.201.1 WALL BOTTOM POSITVE SIDE.dwg [Detail] September 24, 2020 - 10:49am 3" 3" E.STOP B GEO-SEAL CORE 60 MIL GEO-SEAL FILM 11 E.DRAIN REINFORCEMENT DETAIL w/E.ROLL 30 MIL w/E.POLY w/E.ROLL 30 MIL 6" 3"GEO-SEAL BOND GEO-SEAL CORE - 60 MIL GEO-SEAL FILM 11 GEO-SEAL CORE - 60 MIL AS A SUPPLIER OF FINISHED RPODUCTS ONLY, EPRO SERVICES, INC. DOES NOT ASSUME RESPONSIBILITY FOR ERRORS IN DESIGN, ENGINEERING OR DIMENSIONS.THE PROJECT TEAM MUST VERIFY ALL DIMENSIONS AND SUITABILITY OF DETAILS. THE PRODUCTS LISTED ARE TRADEMARKS OF EPRO SERVICES, INC.PAGE 1 OF 1 1328 E. KELLOGG DRIVE WICHITA, KS 67211 1-800-882-1896 EPROINC.COM RJT NTS DRAWN BY SCALE DATE UNDERSLAB VAPOR TERMINATION @ PERIMETER FOOTING w WALL SYSTEM DESCRIPTION GEO-SEAL 100 SYSTEM NAME 40.131.2-MOD DRAWIMG NUMBER G:\My Drive\Epro Master Folder\Drafting\_Job Specific\Detail Requests\T\The Hub Atlanta\40.131.2-MOD GEO-SEAL UNDERSLAB VAPOR TERMINATION @ PERIMETER FOOTING w WALL.dwg [Detail] October 15, 2021 - 1:59pm 10/15/2021 GEO-SEAL CORE 60 MIL GEO-SEAL FILM 11 E.DRAINREINFORCEMENT DETAIL w/E.ROLL 30 MIL w/E.POLY w/E.ROLL 30 MIL E.STOP B TERM BAR WITH ANCHOR GEO-SEAL CORE 60 MIL GEO-SEAL FILM 11 GEO-SEAL BOND AS A SUPPLIER OF FINISHED RPODUCTS ONLY, EPRO SERVICES, INC. DOES NOT ASSUME RESPONSIBILITY FOR ERRORS IN DESIGN, ENGINEERING OR DIMENSIONS.THE PROJECT TEAM MUST VERIFY ALL DIMENSIONS AND SUITABILITY OF DETAILS. THE PRODUCTS LISTED ARE TRADEMARKS OF EPRO SERVICES, INC.PAGE 1 OF 1 1328 E. KELLOGG DRIVE WICHITA, KS 67211 1-800-882-1896 EPROINC.COM RJT NTS DRAWN BY SCALE DATE VERTICAL WALL TO UNDERSLAB ABOVE TRANSITION SYSTEM DESCRIPTION GEO-SEAL 100 SYSTEM NAME 40.280.1-MOD DRAWIMG NUMBER G:\My Drive\Epro Master Folder\Drafting\_Job Specific\Detail Requests\T\The Hub Atlanta\40.280.1-MOD GEO-SEALVERTICAL WALL TO UNDERSLAB ABOVE TRANSITION.dwg [Detail (2)] October 15, 2021 - 12:48pm 10/15/2021 GEO-SEAL CORE 60 MIL GEO-SEAL FILM 11 EXISTING WATER PROOFING, BY OTHERS 3" 3" GEO-SEAL REINFORCEMENT DETAIL w/GEO-SEAL CORE 30 MIL w/E.POLY w/GEO-SEAL CORE 30 MIL 3" MIN. GEO-SEAL CORE 60 MIL NOTE: ANY FASTENERS SHOULD BE SEALED WITH A REINFORCING DETAIL AS A SUPPLIER OF FINISHED RPODUCTS ONLY, EPRO SERVICES, INC. DOES NOT ASSUME RESPONSIBILITY FOR ERRORS IN DESIGN, ENGINEERING OR DIMENSIONS.THE PROJECT TEAM MUST VERIFY ALL DIMENSIONS AND SUITABILITY OF DETAILS. THE PRODUCTS LISTED ARE TRADEMARKS OF EPRO SERVICES, INC.PAGE 1 OF 1 1328 E. KELLOGG DRIVE WICHITA, KS 67211 1-800-882-1896 EPROINC.COM RJT NTS DRAWN BY SCALE DATE ELEVATOR PIT DETAIL SYSTEM DESCRIPTION GEO-SEAL 60 SYSTEM NAME 41.180.2.2-MOD DRAWIMG NUMBER G:\.shortcut-targets-by-id\0B1j3RtmQZ-btQUNqNGJPcEc0Z1k\Epro Master Folder\Drafting\_Job Specific\Detail Requests\_Details\2023\2023-06-13\40.180.1-MOD GEO-SEAL ELEVATOR PIT DETAIL.dwg [Detail] June 13, 2023 - 1:49pm 6/13/2023 APPENDIX F TO-15 Analyte List TO-15 Analyte List 1601 South Boulevard / McCorkles Cleaners Brownfields Property 1601-1617 South Boulevard and 1612 Cleveland Avenue Charlotte, Mecklenburg County, North Carolina Brownfields Project Number 26076-22-060 Analyses of indoor air at the proposed site building will be analyzed for the following volatile organic compounds previously detected at the Brownfields property in soil, groundwater, and/or soil gas, as well as daughter products of trichloroethylene. Acetone Benzene n-Butylbenzene 1,3-Butadiene 2-Butanone (MEK) Carbon Disulfide Carbon Tetrachloride Chloroform Chloromethane Cyclohexane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,1-Dichloroethylene cis-1,2-Dichloroethylene trans-1,2-Dichloroethylene Dichlorodifluoromethane (Freon 12) Ethanol Ethyl Acetate Ethylbenzene 4-Ethyltoluene Heptane 2-Hexanone Hexane Isopropanol Isopropylbenzene n-Propylbenzene 4-Methyl-2-Pentanone (MIBK) Methylene Chloride Methyl-tert-butyl ether (MTBE) Naphthalene Propene Styrene Tetrachloroethylene Toluene 1,1,1-Trichloroethane Trichloroethylene Trichlorofluoromethane 1,1,2-Trichlorotrifluoroethane 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene 2,2,4-Trimethylpentane Vinyl Chloride o-Xylene m,p-Xylene Xylene (total)