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Home My WebLink About23060_Philcron Automotive II_VIMP_20220802 Via Email August 2, 2022 NCDEQ – Division of Waste Management Brownfields Program 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Attn: Mr. Pete Doorn Re: Vapor Intrusion Mitigation Plan Philcron Automotive II 2161 Hawkins Street Charlotte, North Carolina Brownfields Project No. 23060-19-060 H&H Project No. POR-002 Dear Pete: On behalf of Portman Residential, please find the enclosed Vapor Intrusion Mitigation Plan (VIMP) prepared for the proposed 2161 Hawkins high-rise residential building planned for the Philcron Automotive II Brownfields property. The VIMP has been revised to address DEQ comments provided on July 7, 2022. Should you have questions or need additional information, please contact us at (704) 586-0007. Sincerely, Hart & Hickman, PC Ralph McGee, PG Alexis McKenzie, PE Project Manager Project Engineer cc: Mr. Bill Anderson, Portman Residential (via email) Mr. Seth Peek, Portman Residential (via email) Enclosure: ii https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc Vapor Intrusion Mitigation Plan Philcron Automotive II Charlotte, North Carolina Brownfields Project No. 23060-19-060 H&H Job No. POR-002 Table of Contents 1.0 Introduction ................................................................................................................ 1 2.0 Design Basis ................................................................................................................ 5 2.1 Base Course Layer and Vapor Barrier ..................................................................6 2.2 Horizontal Collection Piping and Vertical Riser Piping .......................................7 2.3 Monitoring Points ..................................................................................................8 2.4 General Installation Criteria ..................................................................................9 3.0 Quality Assurance / Quality Control ..................................................................... 11 4.0 VIMS Effectiveness Testing .................................................................................... 13 4.1 Influence Testing .................................................................................................13 4.2 Pre-Occupancy Sub-Slab Soil Gas Sampling ......................................................13 4.3 Pre-Occupancy Indoor Air Sampling ..................................................................15 4.4 VIMS Effectiveness Results ................................................................................16 5.0 VIMS Effectiveness Monitoring ............................................................................. 18 6.0 Future Tenants & Building Uses ............................................................................ 19 7.0 Reporting .................................................................................................................. 20 iii https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc Figures Figure 1 Site Location Map Figure 2 Site Map Attachments Attachment A Proposed Redevelopment Plan Attachment B Available Historical Site Assessment Summary Tables and Figures Attachment C Vapor Intrusion Mitigation Plan – Sheets (VM-1, VM-2, VM-2A, VM-3, VM-4, VM-5, & VM-6) Attachment D VIMS Product Specifications 1 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc Vapor Intrusion Mitigation Plan Philcron Automotive II Charlotte, North Carolina Brownfields Project No. 23060-19-060 H&H Job No. POR-002 1.0 Introduction On behalf of Charlotte Hawkins, LLC (prospective Developer or PD), Hart & Hickman, PC (H&H) has prepared this Vapor Intrusion Mitigation Plan (VIMP) for the proposed high-rise tower at the Philcron Automotive II Brownfields property (Brownfields No. 23060-19-060) located at 2161 Hawkins Street in Charlotte, Mecklenburg County, North Carolina (Site). A Site location map is provided as Figure 1, and the Site and surrounding area are shown in Figure 2. The Site consists of one approximately 1.55-acre parcel of land along the Lynx Blue Line Lightrail in South End Charlotte. The Site was historically developed with portions of the Cotton Seed Oil facility including a portion of the railspur in the northwestern portion of the property. The current Site building was constructed in the late 1950s and was used for various commercial operations including truck rental and repair operations and general office space. The Site is currently occupied by Sycamore Brewery and the southern portions of the property are used for parking. To address potential environmental concerns associated with the Site, the Site was entered into the North Carolina Department of Environmental Quality (DEQ) Brownfields Program and received eligibility in a letter dated November 4, 2019. Current redevelopment plans for the Site include razing the existing Site building and constructing a twenty-four story multi-use (retail and residential) building. Site grading and redevelopment activities are expected to begin in the Summer of 2022. A proposed redevelopment layout is included in Attachment A. The ground floor (Floor 1) of the proposed building will be slab on grade and will consist of commercial spaces including retail units, the main building lobby, an open-air loading zone, open-air parking deck entrance, storage, mechanical and building operation rooms, and building 2 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc services areas. The enclosed space of the ground floor is approximately 36,740 square feet. Levels 2 through 6 will consist of open-air parking with residential units, elevator lobbies, various mechanical rooms, trash chutes, and duct banks. Levels 7 through 22 and level 24 will consist of residences, amenity spaces, and mechanical rooms. Level 23 includes amenity space and a rooftop pool. H&H was provided a draft Environmental Management Plan (EMP) prepared by ECS Southeast LLC which included analytical data summary tables for soil, groundwater, and exterior and sub- slab soil gas samples collected at the Site. Copies of the summary tables and figures taken from the EMP are included in Attachment B for ease of reference. Based on review of available environmental documents, four groundwater samples were collected at the Site in June 2019. Groundwater sample analytical results indicated that 1,2- dichloroethane (4.5 micrograms per liter {µg/L}), naphthalene (59.6 µg/L), and trichloroethene (TCE; 3.4 µg/L) were detected at concentrations exceeding the DEQ Division of Waste Management (DWM) Residential Vapor Intrusion Groundwater Screening Levels (GWSLs) in groundwater sample (GW-3). A low level of TCE (2.4 µg/L) was also detected at a concentration above DWM Residential GWSL in groundwater sample GW-2. No other compounds were detected at concentrations above the DEQ DWM GWSLs in the 2019 groundwater samples collected at the Site. Results of the January 2022 groundwater sampling activities indicated that a low level of TCE (2.0 µg/L) was detected at a concentration above the DWM Residential GWSL in groundwater sample MW-1. Concentrations of benzene (39.4 µg/L) and naphthalene (112 µg/L) were detected at concentrations exceeding the DWM Residential GWSLs in groundwater sample MW-2. No other compounds were detected at concentrations above the DWM Residential GWSLs in the January 2022 groundwater samples. As noted above, previous assessment activities completed at the Site included the collection of four exterior soil gas samples (SG-1 through SG-4) in June 2019 and the collection of two sub- slab soil gas samples (SG-1 and SG-2) within the existing Site building in January 2022. Results 3 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc of exterior soil gas samples indicated that benzene (up to 130 micrograms per cubic meter {µg/m3}) were detected at concentrations above the DEQ DWM Residential Vapor Intrusion Sub-Slab and Exterior Soil Gas Screening Levels (SGSLs) in samples SG-2 through SG-4. In addition, vinyl chloride (60 µg/m3) was also detected at a concentration above the DWM Residential SGSL in soil gas sample SG-4. No other compounds (including TCE) were detected at concentrations above the DWM Residential SGSLs in the June 2019 soil gas samples collected at the Site. Results of sub-slab soil gas sampling activities completed at the Site in January 2022 indicated that no compounds were detected at concentrations above the DWM Residential SGSLs in either sub-slab soil gas sample. Laboratory analytical reports for the June 2019 and January 2022 assessment activities are not provided in the EMP. Therefore, H&H did not evaluate the accuracy of the data in the table summaries or laboratory quality control/quality assurance data. However, to further evaluate the potential for vapor intrusion risks at the Site for the purposes of the vapor intrusion mitigation system (VIMS) design, H&H utilized the data provided in the tabular summaries to calculate cumulative risks using the DEQ Risk Calculator (January 2022). H&H utilized the highest reported concentration of any compound detected in any groundwater sample and in any soil gas sample to model cumulative potential vapor intrusion risks under a residential use scenario. Results of hypothetical worst-case vapor intrusion risks for the groundwater to indoor air pathway indicate a cumulative Lifetime Incremental Cancer Risks (LICR) of 5.5 x 10-5 and a cumulative noncarcinogenic Hazard Index (HI) of 1.9. Results of hypothetical worst-case vapor intrusion risks for the soil gas to indoor air pathway indicate a cumulative LICR of 2.2 x 10-5 and a cumulative noncarcinogenic HI 0.22. Cumulative carcinogenic risks for the groundwater to indoor air vapor intrusion pathway are below the acceptable level of 1x 10-4, but the cumulative noncarcinogenic risks for the groundwater to indoor air vapor intrusion pathway exceed the acceptable HI of 1.0. The cumulative carcinogenic and noncarcinogenic risks for the soil gas to indoor air pathway are both within the acceptable levels. Based on results of previous assessment activities completed at the Site and results of cumulative risk calculations, potential 4 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc structural vapor intrusion can be mitigated through installation of a passive sub-slab venting system. According to the DWM Vapor Intrusion Guidance: “Risk-based screening is used to identify sites or buildings likely to pose a health concern, to identify buildings that may warrant immediate action, to help focus site-specific investigation activities or to provide support for building mitigation and other risk management options including remediation.” In addition, this VIMP was prepared to satisfy the vapor intrusion mitigation condition in the pending Brownfields Agreement. Per the North Carolina Brownfields Property Reuse Act 130A-310.32, a prospective developer, with the assistance of H&H for this project, is to provide DEQ with “information necessary to demonstrate that as a result of the implementation of the brownfields agreement, the brownfields property will be suitable for the uses specified in the agreement while fully protecting public health and the environment instead of being remediated to unrestricted use standards.” It is in the context of these risk-based concepts that the H&H professional engineer makes the following statement. The 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 is fully protective of public health from known Brownfields Property contaminants. 5 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc 2.0 Design Basis The VIMS design drawings are included in Attachment C as Sheets VM-1, VM-2, VM-2A, VM- 3, VM-4, VM-5, and VM-6 (dated May 9, 2022) and will be used to guide construction of the VIMS. To reduce the potential for structural vapor intrusion, the VIMS will operate as a passive sub-slab venting system that includes a network of horizontal sub-slab and vertical above-slab riser piping that discharge above the roof of the parking deck (level 7). Seven potential commercial retail spaces (Retail 1 through Retail 7) are located in the northern corner and along the northeastern and southern portions of the proposed building. The northwest and western portions of the proposed building will include utility rooms, open-air parking entrance ramp, storage, and mechanical rooms. The lobby area is located between Retail spaces 1 and 2 on the northeastern side of the building. The foundation of the building consists of columns supported by sub-grade piles and pile caps. Structural footers are proposed to be located below load-bearing concrete masonry unit (CMU) walls located on the ground floor, but some CMU walls that are not load-bearing are not proposed to contain structural footers or thickened slabs. Vapor intrusion mitigation measures are not warranted in the loading zone driveway area and parking entrance ramp because these are open-air spaces that will not be enclosed. The transformer vault in the northwestern corner of the building does not warrant vapor mitigation measures, but will be lined with vapor barrier as a conservative approach. Retail spaces 2 through 7 will be interconnected spaces without separation walls until tenant occupation. The separation of the retail spaces shown on the redevelopment plan included in VM-3 is not finalized at this time and the number of retail spaces may vary based on tenant request at the time of leasing. Therefore, the commercial retail spaces are pour-back areas that will be left without concrete slabs and remain unfinished to allow for future tenant upfit including installation of sub-slab utilities. Further details regarding the measures to be implemented for the pour-back areas are included in this VIMP. 6 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc Based on results of previous assessment activities indicating low level groundwater concentrations and no chlorinated solvents in soil gas above the Residential SGSLs, as well as results of cumulative risk calculations indicating acceptable levels, trench dams are not warranted on the Site. Furthermore, the proposed VIMS is designed to prevent vapor intrusion from sub-surface features into the building. 2.1 Base Course Layer and Vapor Barrier The VIMS includes placement of a minimum 4-inch base course stone (gravel) layer consisting of high permeability stone (clean #57 stone, or similar high permeability stone approved by the Engineer certifying the VIMP) below the concrete slab of the building. A vapor liner (vapor barrier) will be installed above the base course stone layer (and directly beneath the slab). Please note that the horizontal collection piping network will be installed within the base course stone layer prior to placement of the vapor liner. The horizontal vapor collection piping is discussed further in Section 2.2. below. The vapor liner will consist of Vaporblock® Plus 20 (VBP20) manufactured by Raven Industries (Raven). As an alternative, Drago® Wrap Vapor Intrusion Barrier (Drago Wrap) manufactured by Stego® Industries (Stego) can be used. Technical specifications for each vapor liner product are included in Attachment D. Vapor liners will be installed per manufacturer installation instructions (Attachment D). The liners will be installed over the sub-slab clean stone to cover the areas shown on Sheet VM-3. Each vapor liner manufacturer recommends select sealing agents (mastics, tapes, etc.) for their product. Therefore, and in accordance with the manufacturer installation instructions, the use of alternative vapor liner products not approved by the manufacturers for sealing will not be used. The exterior edges of the vapor liner will be attached and sealed to building footings and subsurface concrete features utilizing the tape specified in the manufacturer instructions. Seams within the building footprint will have a minimum of 6-inches or 12-inches of overlap (depending on the vapor barrier manufacturing specifications) and will be sealed with the tape specified in the manufacturer instructions. If the vapor liner is damaged, torn, or punctured 7 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc during installation, a patch will be installed by overlaying a piece of vapor liner that is cut to the approximate shape of the damaged area, and sized such that a minimum of 6-inches of patch surrounds the damaged area. The seams of the patch will then be sealed using the manufacturer recommended tape. In areas where utility penetrations (i.e., piping, ducts, etc.) are present and the use of the tape recommended by the manufacturer is not practical or deemed as “ineffective” by the Engineer certifying the VIMP, an alternative sealant product specified by the vapor liner manufacturer can be used. Following successful installation of the vapor liner, the finished concrete slab will be placed directly on top of the sealed vapor liner to further seal the seams and penetrations. For the pour-back areas, the vapor barrier will be placed and properly sealed across areas following installation of sub-slab horizontal collection piping. The vapor barrier will remain without concrete cover until tenants purchase and prepare the slab in the retail spaces. Additional pour- back area measures are described in Section 2.4. 2.2 Horizontal Collection Piping and Vertical Riser Piping Passive sub-slab venting will be accomplished using horizontal slotted or perforated collection piping installed in the gravel layer which will collect vapor from beneath the ground floor slabs and discharge the vapors at the roof of the parking deck through vertical riser piping. Sub-slab piping will consist of 3-inch diameter Schedule 40 (SCH 40) PVC piping and fittings, unless otherwise specified in the VIMP. Above-slab piping will consist of 4-inch diameter metal piping (e.g., cast-iron) with air-tight fittings. The piping layouts are shown on Sheets VM-3, VM-4, VM-5, and VM-6 and section details and specifications are shown on Sheets VM-1, VM-2, and VM-2A (Attachment C). Note that solid sections of VIMS piping, both below and above grade, shall maintain a minimum 1% slope toward slotted sections to drain potential condensation water. Product specifications for the slotted horizontal collection piping are provided in Attachment D. As an alternative to 3-inch diameter SCH 40 PVC horizontal piping, soil gas collector mat manufactured by Radon Professional Discount Supply (Radon PDS) may be used for sub-slab 8 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc vapor collection piping. The Radon PDS soil gas collector mat is a polystyrene, plastic, rectangular conduit with a geotextile fabric covering. The mat is 1-inch thick and 12-inches wide and is specifically designed for collecting soil gas from below a building. If used, the soil gas collector mat will be connected to the proposed 4-inch diameter vertical risers using Radon PDS-manufactured riser connection fittings. Product specifications for the soil gas collector mat are provided in Attachment D. To enhance the passive VIMS, Empire Model EV04SS (stainless steel) stationary ventilator (or design engineer approved alternative) will be installed on the discharge end of the vertical riser piping above the parking garage roofline to further promote air exhaust from the risers. The VIMP includes vertical riser piping which will be installed to connect sub-grade piping to the stationary ventilators at the discharge point above the roof of the parking deck. Discharge locations must be a minimum of 10 ft from the property line and 10 ft from an operable opening (such as door or window) or air intake into the building. The proposed discharge locations depicted in the design sheets meet these requirements. In addition, the discharge locations are positioned to be a minimum of 10-ft away from public areas where people may congregate. Note that discharge locations at the parking deck depicted in the VIMS design may be repositioned within the requirements specified above and pending approval by the Engineer certifying the VIMP. An electrical junction box or outlet (120 V required) will be installed in the deck near exhaust discharge locations should connection of an electrical fan be warranted in the future. 2.3 Monitoring Points Monitoring points constructed with 2-inch diameter SCH 40 PVC will be installed as part of the VIMS to conduct effectiveness testing (see Section 4.0), including vacuum influence measurements, and for the collection of sub-slab soil gas samples for laboratory analysis. The monitoring point locations are shown on Sheet VM-3 and section details and specifications are included on Sheets VM-1, VM-2, and VM-2A (Attachment C). 9 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc In general, monitoring points are placed at remotely distant locations from vertical riser piping locations and in representative areas of the ground floor enclosed areas. Several monitoring points will be connected to extended sub-slab horizontal pipes which place the intakes of the monitoring points below occupied spaces. Product specifications for the proposed floor cleanout covers are provided in Attachment D. In order to reduce volatile organic compounds (VOCs) from construction materials in future sub-slab soil gas samples submitted for laboratory analysis, the monitoring point components will be connected using threaded connections or approved low VOC containing products (Section 2.4). In the event that a monitoring point cannot be installed due to building component conflict or is damaged/destroyed during construction, a replacement monitoring point can be constructed, pending approval by the Engineer certifying the VIMP. The replacement point(s) shall consist of one of the specified designs on Sheets VM-2 and VM-2A. DEQ will be notified in advance if monitoring points are relocated significantly in relation to approved locations specified in the VIMP (i.e., if moved to a location in a different mitigation area, section of slab, or tenant area). The proposed monitoring points within the retail spaces (pour back areas) will remain following completion of upfit activities. However, the locations of some permanent monitoring points may need to be modified to accommodate tenant needs. If modifications to the permanent monitoring point locations are necessary, the location changes will be documented with tenant upfit reports. 2.4 General Installation Criteria The VIMS piping, vapor barrier, and monitoring points shall be protected by the installation contractor and sub-contractors throughout the project. Protective measures (e.g., flagging, protective boards, etc.) shall be used as needed to prevent damage to the monitoring points. The monitoring points and riser duct piping must be capped with a removable slip-cap or plug immediately following installation to prevent water and/or debris from entering the VIMS. In the commercial pour-back areas, the spaces shall not be accessible by residents and will remain secured until tenant(s) are undergoing upfit activities. If foot-traffic is expected in 10 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc commercial tenant spaces prior to upfit activities, controls such as wooden boards and/or decking will be placed in areas of foot-traffic. Temporary wooden boards and/or decking will also be installed during tenant upfit activities to minimize damages to the vapor barrier from construction workers. In addition, signage that indicates precautions should be taken while working in the areas with exposed barriers will be posted in prominent locations in the areas of tenant spaces. Future tenant upfit and completion of ground-level components of the retail spaces will likely include installation of sub-slab utilities within the gravel base. Utility installations will likely include removal of certain sections of the vapor barrier as needed to place new sub-slab utility conduits and slab penetrations, but such work is not expected to include notable trenching or other major disturbance to Site soil. In addition, tenant utility installations are not expected to interfere or disturb the VIMS horizontal or vertical piping network. For each phase of construction (above and below slab), construction contractors and sub- contractors shall use “low or no VOC” products and materials that could potentially contain compounds of concern. Furthermore, the construction contractors shall not use products containing the compounds PCE or TCE. Prior to submittal of a VIMS Installation Completion Report, the construction contractor and sub-contractors shall be directed to provide safety data sheets (SDSs) for products and materials used during construction. SDSs provided by the contractor and sub-contractors, including but are not limited to building products, will be included in the VIMS Installation Completion Report. 11 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc 3.0 Quality Assurance / Quality Control For quality assurance and quality control (QA/QC) purposes, inspections will be conducted during each phase of the VIMS installation. The components that require inspection are outlined below: (1) Inspection of the base course stone layer, sub-slab piping layout, and monitoring points prior to installing the vapor liner; (2) Inspection of the vapor liner prior to pouring concrete; (3) Inspection of above-grade vertical riser piping; and (4) Inspection of exhaust installations and riser pipe connections. Additional inspections will be conducted if the system(s) are activated to verify that the electric fans (if installed) are functioning. Each inspection will be performed by, or under direction of, the design engineer certifying the VIMP. Inspections will be combined, when possible, depending on construction sequencing and schedule. The inspections will include field logs and photographs for each section of slab. As requested, and whenever possible, the Engineer certifying the VIMP, or his/her designee, will provide DEQ with 48-hour notice prior to conducting the inspections. Please note that 48-hrs notice to DEQ may not be possible in some cases due to tight construction sequencing. In the event that 48-hour notice is not possible, DEQ will be provided with as much notice as possible prior to an inspection. Additional Pour-Back Area Measures The VIMS is considered functional without a completed floor slab, pending acceptable sub-slab sampling, indoor air sampling, and influence testing results as outlined in this VIMP. Controls such as wooden boards and/or decking along areas of regular foot-traffic will be used to protect the vapor barrier from being punctured following installation of the VIMS and completion of the influence testing. In order to maintain the functionality of the vapor barrier, monthly visual inspections of the vapor barrier in pour-back areas will be completed. The inspection will document the condition of the vapor barrier and any repairs required based on observations. If the vapor liner is damaged at any time before the concrete floor slab is poured, the design 12 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc engineer must be notified, the vapor liner must be repaired in accordance with installation guidelines provided in Attachment D, and the repair must be inspected by the design engineer. A log of the inspections will be maintained including inspection dates, results and observations, and photographs. If repairs are made, a description of the repairs will be recorded. In addition, H&H understands that the tenant spaces will remain locked until a tenant takes control of the space(s). The current property manager will be instructed to report activities in the pour-back areas (Retail 1 through Retail 7) that impact or may impact the vapor barrier to the design engineer. DEQ will be notified by the design engineer when tenants are identified. The PD will also be instructed to contact the design engineer to perform the inspections described above to confirm the VIMS is not impacted or modified during the tenant upfit activities. If notable changes to the VIMS piping are needed for tenant upfit, then the changes or modifications will be reviewed by the design engineer and submitted to DEQ for approval prior to implementation. The concrete slab will not be poured in a tenant space until VIMS components have been repaired and restored to the satisfaction of the design engineer and in accordance with the DEQ- approved VIMP and approved addendums (if warranted). Specific VIMS inspections and DEQ notification procedures noted above will be completed for each pour-back area as upfit activities are completed. In addition, following completion of each concrete pour, influence testing will be completed for the poured section in accordance with procedures outlined in Section 4.1 13 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc 4.0 VIMS Effectiveness Testing 4.1 Influence Testing Post-installation (pre-occupancy) influence testing will be conducted on each VIMS treatment area to evaluate vacuum communication across the slab and document sufficient depressurization can be obtained should electric fans be needed in the future. Influence testing will be conducted following installation of the horizontal collection piping, placement of the vapor liner, and concrete slab pours. For system influence testing, one or more vapor extraction fans will be attached directly to vertical riser piping for the section of the section of the slab being evaluated. Pressure differential will be measured at extraction fan locations, and each monitoring point will be checked for vacuum. A pressure differential resulting in depressurization below the slab of at least 4 pascals (approximately 0.016 inches of water column) at remote distances from riser location in each VIMS treatment area is considered sufficient. Vacuum influence testing results will be submitted to DEQ as part of the VIMS Installation Completion Report. If the influence testing results indicate that modifications to the VIMS are needed to achieve sufficient sub-slab depressurization, H&H will notify DEQ of the modifications prior to submittal of the VIMS Installation Completion Report. The pour-back areas in the commercial spaces will also be included in the pre-occupancy influence testing. Influence testing will be conducted following the installation of vapor liner prior to the pouring of concrete slab. The initial influence testing results in the pour-back areas will be reported to DEQ in the VIMS Installation Completion report. In addition, influence testing will be completed following installation of the slab in each tenant upfit area. 4.2 Pre-Occupancy Sub-Slab Soil Gas Sampling After VIMS installation, but prior to occupancy of the building, sub-slab soil gas samples will be collected from select monitoring points to further evaluate the potential for structural vapor 14 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc intrusion. The sub-slab soil gas samples will be collected from locations generally separated by slab footings and at the furthest reaches of the VIMS. Four (4) sub-slab soil gas samples are proposed within the proposed retail spaces, and four (4) are proposed within the mechanical, storage, and common areas of the building for a total of eight (8) sub-slab soil gas samples. The sub-slab soil gas samples from the commercial retail spaces and connecting stairwell will be collected from monitoring points MP-1, MP-11, MP-13 and MP-16. Common area sub-slab soil gas samples will be collected from monitoring points MP-4, MP-6, MP-7, and MP-10. One duplicate sub-slab soil gas sample using a laboratory-supplied “T” fitting for laboratory QA/QC purposes will be collected during each sampling event. Prior to sample collection, leak tests will be performed at each sample location. A shroud will be constructed around the monitoring point and sub-slab soil gas sampling train including the sample canister. The air within the shroud will be flooded with helium gas and the concentrations will be measured and maintained using a calibrated helium gas detector. With helium concentrations within the shroud maintained, sub-slab soil gas will be purged from the sampling point with an air pump and collected into a Tedlar bag. The calibrated helium gas detector will be used to measure helium concentrations within Tedlar bag sample to confirm concentrations are less than 10% of the concentration maintained within the shroud. A minimum of three sample train volumes will be purged from each point prior to and during the leak testing activities. The sub-slab soil gas samples will be collected using laboratory supplied 1-liter, 1.4-liter, or 3- Liter Summa canisters and laboratory supplied flow regulators calibrated with an approximate flow rate of 100 milliliters per minute. The vacuum in the Summa canisters will be measured at the start and end of the sampling event and will be recorded by sampling personnel. The vacuum in each canister at the conclusion of the sampling event shall remain above 0 inches of mercury (inHg), with a target vacuum of approximately 5 inHg. H&H understands that analytical results for a sample will not be accepted by DEQ if internal vacuum for that sample reaches 0 inHg. The samples will be submitted to a qualified laboratory under standard chain of custody protocols for full-list VOCs by EPA Method TO-15, including naphthalene. The analytical laboratory will be instructed to report vacuum measurements as received and J-flag 15 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc concentrations for each sample. In addition, H&H will request that the laboratory report compound concentrations to the lower of the laboratory method detection limits or the DEQ DWM SGSLs to the extent possible. 4.3 Pre-Occupancy Indoor Air Sampling The building is intended to be occupied shortly following completion and initialization of the HVAC system. As discussed with DEQ, there is typically insufficient time before occupancy to wait for the HVAC system to become operational prior to indoor air sampling. Therefore, the pre-occupancy indoor air sampling event will be conducted following construction and completion of the VIMS including a minimum of one week with operational turbine ventilators. Prior to indoor air sampling, H&H will obtain DEQ approval to proceed with the sampling and provide a statement confirming that the portion of the building being sampled is substantially complete (e.g., windows and doors installed and sealed) with no openings to outdoor air which could potentially bias the indoor air data in the area being sampled. During the pre-occupancy sampling event, four indoor air samples will be collected on the first floor of the building as shown on VM-1. The indoor air samples will be collected using individually-certified 6-liter stainless steel Summa canisters connected to in-line flow controllers equipped with a vacuum gauge. The flow controllers will be set by the laboratory to allow the samples to be collected over an approximately 8-hour period for a non-residential use scenario. The canisters will be set up so that the sample intake point is positioned approximately 5 ft above grade (typical breathing zone height). In addition, during each indoor air sampling event, one duplicate sample for laboratory QA/QC and one background sample from an ambient air upwind location will be collected. Prior to and after the indoor and background air samples are collected, vacuum in the canisters will be measured using a laboratory-supplied vacuum gauge and recorded by sampling personnel. A vacuum above 0 inHg and ideally around 5 inHg will be maintained within the canisters at the conclusion of the sampling event. 16 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc The starting and ending vacuum in each canister will be recorded on the sample chain-of- custody. Periodic checks will be conducted by sampling personnel to monitor the pressure within the Summa canisters during sampling to ensure adequate sample volume is collected. The sample canisters will then be labeled and shipped under standard chain-of custody procedures to a qualified laboratory for analysis of select VOCs by EPA Method TO-15. The select compound list will be based upon the compounds detected in previous soil, groundwater, and sub-slab soil gas samples. The analytical laboratory will be instructed to report vacuum measurements at receipt and J-flag concentrations for each sample. H&H will request that the laboratory report compound concentrations to the lower of the laboratory method detection limits or the DEQ DWM Vapor Intrusion Indoor Air Screening Levels (IASLs) to the extent possible. In addition, an Indoor Air Building Survey form (Appendix C of the DWM VI Guidance) will be completed for each sampling event. New construction materials such as paint, caulk, carpet, mastics, etc., which could be sources of VOCs in indoor air, may cause interference with Site-specific compounds of concern during indoor air sampling. As previously noted, the construction contractors will be requested to provide SDSs for materials used during construction which will be submitted to DEQ, if needed to further evaluate sub-slab and indoor air data. 4.4 VIMS Effectiveness Results The results and analysis of the sub-slab soil gas and indoor air sampling will be submitted to DEQ with the final VIMS Installation Completion Report (discussed in Section 6.0). After receipt of the sub-slab soil gas and indoor air sample analytical results, although ground-level occupiable spaces are planned for non-residential uses with residential occupancy on floors above ground-level, H&H will use the most recent version of the DEQ Risk Calculator to evaluate cumulative potential vapor intrusion risks under a residential and non-residential scenario for each sample location. H&H will consider the VIMS effective if the calculated sub- slab soil gas cumulative LICR is 1 x 10-4 or less for potential carcinogenic risks and the calculated sub-slab soil gas cumulative HI is 1.0 or less for potential non-carcinogenic risks. The 17 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc PD acknowledges that DEQ may request additional sampling if Site contaminants of concern are elevated, even if the risk calculations are acceptable. In the event that calculated cumulative risks for a residential or non-residential scenario exceed acceptable levels for potential carcinogenic and/or noncarcinogenic risks as a result of structural vapor intrusion, confirmation sub-slab soil gas or indoor air samples will be collected from the area of potential concern. If an additional round of samples indicates results within acceptable risk levels, no further pre-occupancy sampling will be conducted. If calculated cumulative risks for a non-residential scenario continue to exceed acceptable levels for potential carcinogenic risks (greater than 1x10-4) and/or potential non-carcinogenic risks (above a Hazard Index of 1.0) as a result of structural vapor intrusion, considerations will be made to convert the system from a passive system to an active system. The PD acknowledges that no portions of the proposed building will be occupied without written approval from DEQ following the completion of pre- occupancy sampling activities. 18 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc 5.0 VIMS Effectiveness Monitoring The VIMS is proposed as a passive system which will include vapor extraction through sub-slab collection piping and solid risers that discharge sub-surface vapors on the exterior of the parking deck. As such, differential pressure monitoring is not anticipated. If the VIMS is converted to an active system with electric fans based on post-construction VIMS efficacy testing results, mitigation system modifications and plans for additional VIMS efficacy testing will be submitted to the DEQ Brownfields Program for approval prior to implementation. Actual fans to be used will be selected based on the results of the influence testing discussed in Section 4.0. Post-construction VIMS effectiveness monitoring will include semi-annual sub-slab soil gas sampling at the locations indicated in Section 4.0 or as otherwise approved by DEQ. In addition, based on the pre-occupancy influence testing, sub-slab soil gas, and indoor air results, select indoor air sample locations for the first post-occupancy indoor air sampling event will be submitted for DEQ approval. If the first post-occupancy indoor air event indicates consistent or decreasing concentrations within acceptable risk levels, a request to terminate indoor air sampling will be submitted for DEQ approval. If indoor air sampling is required for future post- occupancy events, it will be conducted semi-annually in concurrence with the sub-slab soil gas sampling. The sub-slab soil gas and indoor air sampling will be conducted using the procedures described in this VIMP. If post-construction semi-annual sampling event results indicate consistent or decreasing concentrations within acceptable risk levels after three events, a request to modify or terminate sampling will be submitted for DEQ review with DEQ written approval required prior to modifications to the sampling frequency and locations. 19 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc 6.0 Future Tenants & Building Uses The future use of the proposed Site buildings includes a high-rise residential apartment building with commercial areas located on the ground floor and an associated parking deck. After occupancy of the Site building, the building owner or property management group will manage maintenance of the vapor mitigation system. If vapor mitigation components are damaged or need to be altered for building renovations, building management will be instructed to contact a North Carolina licensed Professional Engineer to oversee or inspect the activities, and a report shall be submitted to DEQ detailing the repairs or alterations. To aid in identification of the vapor mitigation piping, the above-slab piping will be labeled with “Vapor Mitigation – Contact Maintenance”, or similar language, on all accessible piping at intervals of no greater than 10- linear feet. Future VIMS maintenance and upkeep will be the responsibility of the building owner or property management group. As noted in Section 3.0, monthly visual inspections of the vapor barrier in pour-back areas will be completed until the concrete slabs are poured. If repairs are needed as observed during a monthly inspection, the design engineer will be notified and any repairs will be inspected and documented by the engineer. As part of the standard annual Land Use Restriction Update submittal that will be required as part of the pending Notice of Brownfields Property, it is recommended that the building owner or property management group complete a visual inspection of the exposed parts of the system including, but not limited to, the vertical risers and discharge locations on the roof and the monitoring points. H&H recommends annual inspections be documented and kept on record to be provided to DEQ upon request. 20 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/portman holdings/hawkins tower/report/23060 - vimp_philcron automotive ii.doc 7.0 Reporting A VIMS Installation Completion Report (sealed by a NC PE) documenting installation activities will be submitted to DEQ following confirmation that the mitigation system is installed and effectively mitigating potential vapor intrusion risks to building occupants. In addition, for the pour-back areas, addendum reports documenting subsequent inspections after tenant upfit activities are complete will be submitted under separate cover to DEQ. The VIMS Installation Completion Report(s) will include a summary of VIMS installation activities such as representative photographs and as-built drawings, QA/QC measures, SDSs of materials used in construction, VIMS effectiveness testing results, and inspection documents. The report will also include a statement provided by the Engineer as to whether the VIMS was installed in accordance with the DEQ approved VIMP and is fully protective of public health as defined in Section 1.0, and as evidenced by the VIMS inspections performed by the Engineer or its designee, results of the influence testing, results of the analytical testing, and QA/QC measures as described in this VIMP. Deviations from the approved design will be provided in the report. The pending Notice of Brownfields Property for the Site is anticipated to include land use restrictions that indicate the building(s) shall not be occupied until DEQ provides written compliance approval for the installation and performance of the VIMS as documented in the installation report. However, we understand that DEQ may provide conditional compliance approval with submittal of a data summary in lieu of the full VIMS Installation Completion Report based on timing of the proposed building occupancy date and report review times. After each additional post-construction sampling event, a report will be submitted to DEQ to document the sampling activities and results. USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed August, 2019. SITE LOCATION MAP 2161 HAWKINS2161 HAWKINS STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 23060-19-060 DATE: 5-10-22 JOB NO: POR-002 REVISION NO: 0 FIGURE NO: 1 2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology TITLE PROJECT 0 2,000 4,000 SCALE IN FEET Path: S:\AAA-Master Projects\Portman Holdings\Hawkins Tower\Figures\Figure-1.mxdN U.S.G.S. QUADRANGLE MAP CHARLOTTE EAST, NORTH CAROLINA 2021 QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC) SITE REVISION NO. 0 JOB NO. POR-002 DATE: 5-10-22 FIGURE NO. 2 2161 HAWKINS 2161 HAWKINS STREET CHARLOTTE, NORTH CAROLINA BROWNFIELDS PROJECT NO. 23060-19-060 SITE MAP LEGEND BROWNFIELDS PROPERTY BOUNDARY PARCEL BOUNDARY LYNX LIGHTRAIL PROPOSED BUILDING FOOTPRINT 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology NOTES: 1.AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS (2022). 2.SITE DEVELOPMENT PLAN PROVIDED BY S9 ARCHITECTURE. PARKING DECK ENTRANCE MULTI-TENANT COMMERCIAL BUILDING (2173 HAWKINS STREET) MULTI-TENANT COMMERCIAL BUILDING (2151 HAWKINS STREET) HAWKI N S S T R E E T VACANT BUILDING (2150 HAWKINS STREET) MULTI-TENANT COMMERCIAL BUILDING (2108 SOUTH BOULEVARD) RETAIL SPACE 7 RETAIL SPACE 6 RETAIL SPACE 5 RETAIL SPACE 4 RETAIL SPACE 3 RETAIL SPACE 2 RETAIL SPACE 1 S:\AAA-Master Projects\Portman Holdings\Hawkins Tower\Figures\Site Map.dwg, FIG 2, 5/9/2022 11:37:08 PM, SVincent Attachment A Proposed Redevelopment Plan 322/'(&.#/(9(/522)#/(9(/522)#/(9(/522)#/(9(/2)),&(%8,/',1*81'(5&216758&7,211,&(;,67,1*%8,/',1*1,&522)#/(9(/522)#/(9(/+$:.,16675((7522)#/(9(/6:,00,1*322//,*+75$,/&+$5/277(5$,/75$,/ 6(:(5'5$,1($6(0(173/$=$),5(+<'5$1787,/,7< 7(03&216758&7,21($6(0(17675((7&(17(5/,1()&&(175<#/(9(/:$7(50(7(55220(175<#/(9(/'2*3$5.#/(9(/%5,'*(#/(9(/3523(57</,1(6,7(/(*(1'($6(0(173523(57<,1)250$7,2125,*,1$/3$5&(/,'180%(5/27180%(56,7($5($DF6+((712-2%12'$7(127,668(')25&216758&7,216566$RI1RUWK&DUROLQD,QF7+,6'5$:,1*,67+(3523(57<2)7+($5&+,7(&7$1'0$<127%(5(352'8&('2586(':,7+287:5,77(13(50,66,213LHGPRQW5RDG1(%XLOGLQJ6XLWH$WODQWD*HRUJLDVPDOOZRRGXVFRP6566$RI1RUWK&DUROLQD,QF7+$9(18(1(:<25.1<76$5&+,7(&785(&206$5&+,7(&785($$5&+,7(&785$/6,7(3/$1+$:.,16+DZNLQV6WUHHW&KDUORWWH1& $$5&+,7(&785$/6,7(3/$11352-(&71527+1758(1257+1 ( 01 ( 56 ( 06 ( 56 ( 01 : 55(9,6,21635,17('5(912'$7(5(0$5.607/09/21 50% DESIGNDEVELOPMENT11/04/21 DESIGNDEVELOPMENT Attachment B Historical Site Assessment Summary Tables and Figures Table 1 Summary of Soil Samples Analytical Results Philcron Automotive II 2161 Hawkins Street Charlotte, Mecklenburg County, North Carolina Brownfields Project ID: 23060-19-060 ECS Project No.: 49:9174-D VOCs by EPA Method 8260 SVOCs by EPA Method 8270 Benzenen-ButylbenzeneEthylbenzeneIsopropylbenzenep-IsopropyltolueneMethylene ChlorideNaphthaleneToluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal Xylenes2,4-DinitrotolueneProtection of Groundwater PSRG 0.01 4.5 13 2.3 NE 0.025 0.39 8.3 12 11 9.9 0.0027 Residential PSRG 1.2 780 6.1 410 NE 58 2.1 990 63 56 120 1.7 Industrial/Commerical PSRG 5.4 12,000 27 2,100 NE 650 8.8 9,700 370 320 530 7.4 SB-1A 01/18/22 0 - 2 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 0.071 <0.0063 <0.0063 0.0035 J <0.0063 0.0063 J 0.21 J SB-1B 01/18/22 17 - 19 <0.0094 <0.0094 <0.0094 <0.0094 <0.0094 0.062 <0.0094 <0.0094 <0.0094 <0.0094 <0.019 <0.49 SB-2A 01/18/22 2 - 4 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 0.042 <0.0067 <0.0067 <0.0067 <0.0067 <0.0013 <0.42 SB-2B 01/18/22 17 - 19 <0.0083 <0.0083 <0.0083 <0.0083 <0.0083 0.072 <0.0083 <0.0083 <0.0083 <0.0083 <0.017 <0.46 SB-3A 01/18/22 1.5 - 4 <0.0065 <0.0065 <0.0065 <0.0065 <0.0065 0.063 <0.0065 <0.0065 <0.0065 <0.0065 <0.013 <0.43 SB-3B 01/18/22 19 - 21 <0.0085 <0.0085 <0.0085 <0.0085 <0.0085 0.077 <0.0085 <0.0085 <0.0085 <0.0085 <0.017 <0.48 SB-4A 01/18/22 1.5 - 4 0.0036 J <0.0064 <0.0064 <0.0064 <0.0064 0.048 0.0063 J 0.0033 J 0.0035 J <0.0064 0.0062 J <0.42 SB-4B 01/18/22 13 - 15 0.0094 0.073 0.029 0.019 0.075 <0.022 0.044 0.0037 J 0.50 0.19 0.29 <0.39 SB-DUP*01/18/22 13 - 15 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.023 <0.0057 <0.0057 <0.0057 <0.0057 <0.011 <0.39 Total Metals By EPA Methods 6010/7471/7199 ArsenicBariumCadmiumTotal ChromiumTrivalent ChromiumHexavalent ChromiumLeadMercurySeleniumSilverProtection of Groundwater PSRG 5.8 580 3 ---360,000 3.8 270 1 2.1 3.4 Residential PSRG 0.68 3,100 14 ---23,000 0.31 400 4.7 78 78 Industrial/Commerical PSRG 3.0 47,000 200 ---350,000 6.5 800 70 1,200 1,200 SB-1A 01/18/22 0 - 2 1.8 J 6.7 <0.10 17.4 17.0 0.41 J 8.1 0.053 1.1 <0.51 SB-1B 01/18/22 17 - 19 <3.7 35.1 <0.15 13.7 13.3 0.44 J 12.9 0.031 <1.5 <0.73 SB-2A 01/18/22 2 - 4 <2.5 46.7 <0.10 28.5 28.1 0.36 J 9.2 0.072 <1.0 <0.50 SB-2B 01/18/22 17 - 19 <2.8 64.9 <0.11 3.5 3.2 0.33 J 4.2 0.013 <1.1 <0.55 SB-3A 01/18/22 1.5 - 4 <3.1 14.8 0.47 J 20.3 20.3 <1.2 14.1 0.071 2.7 <0.62 SB-3B 01/18/22 19 - 21 <2.6 16.6 <0.10 25.6 24.0 1.6 3.5 0.018 <1.0 <0.52 SB-4A 01/18/22 1.5 - 4 11.5 49.7 <0.12 33.2 33.2 <1.3 25.6 0.28 0.74 J <0.58 SB-4B 01/18/22 13 - 15 <2.2 8.2 0.5 43.9 43.4 0.48 J 6.8 0.084 2.5 0.30 J SB-DUP*01/18/22 13 - 15 <2.8 9.3 <0.11 18.4 18.0 0.36 J 4.7 0.0074 <1.1 <0.56 Notes: All results presented in milligrams per kilogram (mg/kg)J = Estimated concentration detected between laboratory method reporting limit and detection limit Compounds not shown were not detected VALUE = concentration greater than the laboratory method reporting limit VOCs = Volatile Organic Compounds VALUE = concentration greater than the Protection of Groundwater PSRG SVOCs = Semi-volatile Organic Compounds VALUE = concentration greater than the Residential PSRG PSRG = NCDEQ Preliminary Soil Remediation Goals VALUE = concentration greater than the Industial/Commercial PSRG * = SB-DUP is a duplicate sample of SB-4B sample Sample ID Sample Date Sample Depth (x to y ft bgs) Sample ID Sample Date Sample Depth (x to y ft bgs) Table 2 Summary of Groundwater Samples Analytical Results Philcron Automotive II 2161 Hawkins Street Charlotte, Mecklenburg County, North Carolina Brownfields Project ID: 23060-19-060 ECS Project No.: 49:9174-D VOCs by EPA Method 8260 SVOCs by EPA Method 8270 AcetoneBenzene1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-DichloroetheneDiisopropyl etherEthylbenzeneMethyl tert butyl etherNaphthaleneTolueneTrichloroethene1,2,3-TrichloropropaneTotal XylenesBiphenyl(Diphenyl)1-Methylnaphthalene2-MethylnaphthaleneNaphthaleneNC2LGWQS 6,000 1 6 0.4 350 70 70 600 20 6 600 3.0 0.005 500 NE 1 30 6 Residential Groundwater VISL 4,500,000 1.6 7.6 2.2 39 NE 1,400 3.5 450 4.6 3,800 1.0 4.5 77 NE NE NE 4.6 Non-Residential Groundwater VISL 19,000,000 6.9 33 9.8 160 NE 5,900 15 200 20 16,000 4.4 19 320 NE NE NE 20 GW-1 06/05/19 14.0 J <1.0 <1.0 <1.0 <1.0 0.40 J <2.5 <2.5 0.41 J <1.0 <1.0 0.54 J <1.0 <1.0 NA <10.0 <10.0 <1.0 GW-2 06/05/19 13.4 J 0.25 J 0.87J 1.5 8.2 5.4 <2.5 <2.5 1.7 <1.0 0.35 J 2.4 <1.0 <1.0 NA <10.0 <10.0 <1.0 GW-3 06/05/19 <25 358 <1.0 4.5 <1.0 3.6 11.1 1.2 J 11.5 59.6 2.3 J 3.4 <1.0 64.0 NA 8.1 J 8.0 J 29.9 GW-4 06/05/19 <25 <1.0 <1.0 <1.0 <1.0 <1.0 1.7 <2.5 61.7 0.77 J 0.35 J <1.0 <1.0 0.23 J NA <10.0 <10.0 <1.0 MW-1 01/20/22 <25.0 1.1 <1.0 <1.0 <1.0 2.6 <1.0 <1.0 0.79 J <1.0 <1.0 2.0 <1.0 <1.0 <9.1 <9.1 <9.1 <9.1 DUP-1*01/20/22 <25.0 1.0 J <1.0 <1.0 <1.0 2.7 <1.0 <1.0 0.60 J 0.71 J 2.0 2.0 <1.0 0.35 J <9.1 <9.1 <9.1 <9.1 MW-2 01/20/22 9.8 J 39.4 <1.0 <1.0 <1.0 <1.0 1.3 1.5 1.3 112 1.1 <1.0 0.96 J 17.4 3.1 J 21.7 27.2 56.1 MW-3 01/20/22 <25.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <9.1 <9.1 <9.1 <9.1 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 NV NV 0.18 NV NE Non-Residential Groundwater VISL NV NV NV NV NV 0.75 NV NV GW-1 06/05/19 NA NA NA NA NA NA NA NA GW-2 06/05/19 NA NA NA NA NA NA NA NA GW-3 06/05/19 NA NA NA NA NA NA NA NA GW-4 06/05/19 NA NA NA NA NA NA NA NA MW-1 01/20/22 <10.0 47.0 <1.0 5.7 <5.0 <0.20 <10.0 <5.0 DUP-1*01/20/22 <10.0 48.4 <1.0 6.2 <5.0 <0.20 <10.0 <5.0 MW-2 01/20/22 <10.0 99.6 <1.0 69.4 <5.0 <0.20 <10.0 <5.0 MW-3 01/20/22 <10.0 110 <1.0 <5.0 <5.0 <0.20 <10.0 <5.0 Notes: All results presented in micrograms per liter (mg/L)J = Estimated concentration detected between laboratory method reporting limit and detection limit Compounds not shown were not detected NE = Not established VOCs = Volatile Organic Compounds NV = Not volatile SVOCs = Semi-volatile Organic Compounds NA = Not analyzed NC2LGWQS = North Carolina 2L Groundwater Quality Standards (October 2020)VALUE = concentration greater than the laboratory method reporting limit Residential Groundwater VISL = NCDEQ Residential Groundwater Vapor Instrusion Screening Level (June 2021) at target risk 1.0E -06 VALUE = concentration greater than the NC2LGWQS Non-Residential Groundwater VISL = NCDEQ Non-Residential Groundwater Vapor Instrusion Screening Level (June 2021) at target risk 1.0E -06 VALUE = concentration greater than the Residential Groundwater VISL * = DUP-1 is a duplicate sample of the MW-1 sample VALUE = concentration greater than the Non-Residential Groundwater VISL Sample DateSample ID Sample ID Sample Date Table 3 Summary of Exterior Soil Gas Samples Analytical Results Philcron Automotive II 2161 Hawkins Street Charlotte, Mecklenburg County, North Carolina Brownfields Project ID: 23060-19-060 ECS Project No.: 49:9174-D Volatile Organic Compounds by EPA TO-15 Benzene2-Butanone (MEK)Carbon DisulfideChloromethanecis-1,2-Dichloroethane1,1-DichloroethaneEthylbenzene4-Methyl-2-pentanone(MIBK)StyreneTetrachloroetheneToluene1,2,4-TrimethylbenzeneVinyl ChlorideTotal XylenesResidential VISL 12 35,000 4,900 630 NS 58 37 21,000 700 280 35,000 420 5.6 700 Non-Residential VISL 160 440,000 61,000 7,900 NS 770 490 260,000 88,000 3,500 440,000 5,300 280 8,800 SG-1 06/19/19 3.4 56 36 <8.0 <4.0 <4.1 5.2 9.3 <4.3 <6.9 83 <5.0 <2.6 <13.2 SG-2 06/19/19 25 75 70 2.5 16 <4.1 10 21 8.8 <6.9 160 5.0 3.9 40 SG-3 06/19/19 130 <30 130 2.8 <4.0 <4.1 13 120 11 <6.9 200 6.6 <2.6 60 SG-4 06/19/19 14 <30 58 <2.1 12 12 6.0 <8.3 6.6 10 99 <5.0 60 25.7 Notes: Results presented in micrograms per cubic meter (µg/m3) in Hg = inches of mercury Residential VISL = NCDEQ-DWM Residential Exterior Vapor Instrusion Screening Level Level (June 2021) at target risk 1.0E -06 Non-Residential VISL = NCDEQ-DWM Non-Residential Exterior Vapor Instrusion Screening Level Level (June 2021) at target risk 1.0E -06 J = Estimated concentration detected between laboratory method detection limit and reporting limit NS = No Standard Established VALUE = concentration greater than the laboratory method reporting limit VALUE = concentration greater than the Residential VISL VALUE = concentration greater than the Non-Residential VISL Sample ID Sample Date Table 4 Summary of Sub-Slab Soil Gas Samples Analytical Results Philcron Automotive II 2161 Hawkins Street Charlotte, Mecklenburg County, North Carolina Brownfields Project ID: 23060-19-060 ECS Project No.: 49:9174-D Volatile Organic Compounds by EPA TO-15 AcetoneBenzene2-Butanone (MEK)Carbon TetrachlorideChloroformChloromethaneCyclohexaneDichlorodifluoromethane(Freon 12)EthanolEthyl acetateEthylbenzene4-EthyltolueneHeptaneHexaneIsopropanolMethylene Chloride4-Methyl-2-pentanone(MIBK)PropeneStyreneTetrachloroetheneTetrahydrofuranTolueneTrichloroetheneTrichlorofluoromethane(Freon 11)1,1,2-Trichloro-1,2,2-trifluoroethane(Freon 113)1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenem&p-Xyleneo-XyleneResidential VISL 22,000 12 35,000 16 4.1 630 42,000 700 NE 490 37 NE 2,800 4,900 1,400 3,400 21,000 21,000 700 280 14,000 35,000 14 NE 35,000 420 420 700 700 Non-Residential VISL 2,700,000 160 440,000 200 53 7,900 530,000 8,800 NE 6,100 490 NE 35,000 61,000 18,000 53,000 260,000 260,000 88,000 3,500 180,000 440,000 180 NE 440,000 5,300 5,300 8,800 8,800 SG-1 01/19/22 130 2.5 4.8 J 0.40 J 0.33 J <0.83 7.5 2.1 1,900 41 2.3 0.51 J 5.7 6.0 J 9.5 J 1.9 J 1.6 <14 1.5 0.92 J <5.9 22 <1.1 1.9 J 0.64 J 2.0 0.87 J 7.4 2.8 SG-2 01/19/22 22 1.2 2.2 J <1.3 0.57 J 0.50 J 2.9 2.0 540 6.0 1.3 0.53 J 1.2 <28 <20 <6.9 <0.82 11 J 0.68 J 13 <5.9 8.8 0.45 J 1.1 J <6.1 1.5 0.49 J 4.4 1.7 SG-DUP*01/19/22 21 1.1 2.2 J <1.3 0.76 J <0.83 3.2 2.3 450 4.8 J 1.9 0.55 J 1.4 <28 5.1 J <6.9 <0.82 15 0.95 17 1.7 J 11 0.56 J 1.2 J <6.1 2.0 0.61 J 5.5 2.3 Notes: Results presented in micrograms per cubic meter (µg/m3) in Hg = inches of mercury Residential VISL = NCDEQ-DWM Residential Sub-Slab Vapor Instrusion Screening Level Level (June 2021) at target risk 1.0E -06 Non-Residential VISL = NCDEQ-DWM Non-Residential Sub-Slab Vapor Instrusion Screening Level Level (June 2021) at target risk 1.0E -06 * = SG-DUP is a duplicate sample of the SG-3 record sample J = Estimated concentration detected between laboratory method detection limit and reporting limit NS = No Standard Established VALUE = concentration greater than the laboratory method reporting limit VALUE = concentration greater than the Residential VISL VALUE = concentration greater than the Non-Residential VISL Sample ID Sample Date SOURCE: MECKLENBURG COUNTY POLARIS GIS WEBSITE ACCESSED MARCH 16, 2022 SCALE: As shown FIGURE 1ASOIL SAMPLE LOCATIONS MAP 2161 Hawkins StreetCharlotte, Mecklenburg County, North Carolina ECS Project Number 49:9174-D LEGEND Approximate Site Boundary Approximate Soil Sample Location SB-1 SB-2 APPROXIMATE FORMER UST BASIN LOCATION SB-4 SB-3 SOURCE: 2161 HAWKINS PROJECT CONSTRUCTION DOCUMENTS; SHEET C2-1 SCALE: As shown FIGURE 1BSOIL SAMPLE LOCATIONS MAP 2161 Hawkins StreetCharlotte, Mecklenburg County, North Carolina ECS Project Number 49:9174-D LEGEND Approximate Soil Sample Location SB-1 SB-2 APPROXIMATE FORMER UST BASIN LOCATION SB-4 SB-3 SOURCE: MECKLENBURG COUNTY POLARIS GIS WEBSITE ACCESSED MARCH 16, 2022 SCALE: As shown FIGURE 2AGROUNDWATER SAMPLE LOCATIONS MAP 2161 Hawkins StreetCharlotte, Mecklenburg County, North Carolina ECS Project Number 49:9174-D LEGEND Approximate Site Boundary Approximate Permanent Monitoring Well Location Approximate Temporary Monitoring Well Location MW-1 GW-1 GW-2 GW-3 MW-2 MW-3 GW-4 SOURCE: 2161 HAWKINS PROJECT CONSTRUCTION DOCUMENTS; SHEET C2-1 SCALE: As shown FIGURE 2BGROUNDWATER SAMPLE LOCATIONS MAP 2161 Hawkins StreetCharlotte, Mecklenburg County, North Carolina ECS Project Number 49:9174-D LEGEND Approximate Permanent Monitoring Well Location Approximate Temporary Monitoring Well Location MW-1 GW-1 GW-2 GW-3 MW-2 MW-3 GW-4 SOURCE:MECKLENBURG COUNTY POLARIS GIS WEBSITEACCESSED MARCH 16, 2022 SCALE:As shown FIGURE 3AEXTERIOR AND SUB-SLAB SOIL GAS SAMPLE LOCATIONS MAP 2161 Hawkins StreetCharlotte, Mecklenburg County, North Carolina ECS Project Number 49:9174-D LEGEND Approximate Site Boundary Approximate Soil Gas Sample Location Approximate Sub-Slab Soil Vapor Sample Location SG-1 SG-1 SG-2 SG-2 SG-3 SG-4 SOURCE:2161 HAWKINS PROJECT CONSTRUCTION DOCUMENTS; SHEET C2-1 SCALE:As shown FIGURE 3BEXTERIOR AND SUB-SLAB SOIL GAS SAMPLE LOCATIONS MAP 2161 Hawkins StreetCharlotte, Mecklenburg County, North Carolina ECS Project Number 49:9174-D LEGEND Approximate Soil Gas Sample Location Approximate Sub-Slab Soil Vapor Sample Location SG-1 SG-1 SG-2 SG-2 SG-3 SG-4 Attachment C Vapor Intrusion Mitigation Plan Sheets (VM-1, VM-2, VM-2A, VM-3, VM-4, VM-5, & VM-6) VAPOR MITIGATION PLAN PREPARED BY: 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology VAPOR INTRUSION MITIGATION SYSTEM SPECIFICATIONS VM-1 PROFESSIONAL APPROVAL VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS 1.THIS VAPOR MITIGATION PLAN IS INTENDED TO BE USED FOR DIRECTION OF VIMS COMPONENT INSTALLATION ONLY AND IS NOT INTENDED TO GUIDE CONSTRUCTION OF BUILDING STRUCTURAL COMPONENTS. CONSTRUCTION CONTRACTOR SHALL VERIFY CONSISTENCY OF VIMS DETAILS WITH APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, & PLUMBING PLANS AND RESOLVE ANY INCONSISTENCIES PRIOR TO VIMS INSTALLATION. 2.VIMS VAPOR BARRIER (LINER) SHALL BE VAPORBLOCK PLUS 20 (VBP20) 20-MIL VAPOR LINER MANUFACTURED BY RAVEN INDUSTRIES (RAVEN). AS AN ALTERNATIVE, DRAGO WRAP 20-MIL VAPOR INTRUSION BARRIER MANUFACTURED BY STEGO INDUSTRIES, LLC (STEGO) CAN BE USED, PENDING APPROVAL BY THE ENGINEER. THE VAPOR LINER SHALL BE INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW MITIGATED AREAS, ALONG RETAINING WALLS, AND AT SLAB-ON-GRADE STEPS WITHIN THE EXTENT OF VAPOR LINER BOUNDARY. A MINIMUM 4-INCH THICK BASE COURSE CONSISTING OF CLEAN #57 STONE (WASHED WITH NO FINES) SHALL BE INSTALLED BENEATH THE VIMS VAPOR LINER. A SIMILAR HIGH PERMEABILITY STONE MAY BE USED, PENDING APPROVAL BY THE ENGINEER. 2.1.THE VAPOR LINER SHALL BE PROPERLY SEALED IN ACCORDANCE WITH THE MANUFACTURER INSTALLATION INSTRUCTIONS AS SPECIFIED IN THESE DRAWINGS AT FOOTERS, SLAB STEPS, RETAINING WALLS, PENETRATIONS (SUCH AS PIPE PENETRATIONS), OR OTHER BUILDING COMPONENTS WITHIN THE VIMS EXTENTS. 2.2.VAPOR BARRIER SHALL BE INSTALLED UNDER SLABS, ON WALLS, AND ALONG OTHER STRUCTURAL COMPONENTS WHICH COME IN CONTACT WITH BOTH AN OCCUPIABLE ENCLOSED SPACE AND SOIL. NOT ALL AREAS FOR THE VAPOR BARRIER MAY BE DEPICTED ON THE DRAWINGS. THE GENERAL CONTRACTOR SHALL VERIFY ALL REQUIRED LOCATIONS FOR VAPOR BARRIER ALONG VERTICAL WALLS PRIOR TO CONSTRUCTION AND BACKFILLING ACTIVITIES. 2.3.ALL CONCRETE BOX-OUTS, INCLUDING BUT NOT LIMITED TO SHOWER/BATH TUB DRAINS, SHALL HAVE A CONTINUOUS VAPOR BARRIER INSTALLED BELOW. 2.4.VAPOR BARRIER SHALL EXTEND ALONG FOOTING EXTERIOR, IF POSSIBLE, AT LOCATIONS WHERE EXTERIOR GRADE IS HIGHER THAN INTERIOR GRADE. 2.5.IN AREAS WITH EXPANSION BOARDS (E.G. ALONG COLUMNS), THE VAPOR BARRIER MUST BE SEALED DIRECTLY TO THE CONCRETE WITH THE EXPANSION BOARD INSTALLED OVER THE VAPOR BARRIER. 2.6.THE INTERFACE OF THE STEEL COLUMNS (IF PRESENT) AND THE CONCRETE SLAB SHALL BE SEALED AT GRADE WITH A SELF-LEVELING POLYURETHANE SEALANT PER DIRECTION OF THE ENGINEER OR ENGINEER'S DESIGNEE. SIMILAR SEALANT PRODUCTS MAY BE APPROVED BY THE ENGINEER. 3.SUB-SLAB SLOTTED VAPOR COLLECTION PIPE SHALL BE SOCKET-WELD 3" SCH 40 PVC PIPE WITH 0.020" TO 0.060" SLOT WIDTH AND 1/8" SLOT SPACING. AN ALTERNATE SLOT PATTERN, OR SCH 40 PVC PERFORATED PIPE WITH 5/8" OR SMALLER DIAMETER PERFORATIONS, OR SOIL GAS COLLECTOR MAT (1" X 12"), WITH SIMILAR AIR FLOW CHARACTERISTICS TO THE SLOTTED PIPE MAY BE USED PENDING APPROVAL BY THE DESIGN ENGINEER. IF CIRCULAR PIPE IS USED, A PVC TERMINATION SCREEN (WALRICH CORPORATION #2202052, OR SIMILAR) SHOULD BE INSTALLED ON THE END OF PIPE. 3.1.SLOTTED COLLECTION PIPING SHALL BE SET WITHIN THE MINIMUM 4” BASE COURSE LAYER, WITH APPROXIMATELY 1” OF BASE COURSE MATERIAL BELOW THE PIPING. 3.2.SOIL GAS COLLECTOR MAT (IF INSTALLED) SHALL NOT BE USED THROUGH A CONCRETE FOOTING. SCH 40 PVC PIPE (3" DIA) SHALL BE USED FOR ALL SUB-SLAB VENT PIPE CROSSINGS THROUGH FOOTINGS. IF SOIL GAS COLLECTOR MAT IS USED, MANUFACTURER APPROVED FITTINGS SHALL BE UTILIZED TO CONNECT THE SOIL GAS COLLECTOR MAT TO PVC PIPING FOR CROSSINGS THROUGH FOOTINGS AND AT RISER LOCATIONS. 4.4" METAL RISER DUCT PIPING SHALL BE INSTALLED TO CONNECT EACH SLAB PENETRATION LOCATION TO A ROOFTOP EXHAUST DISCHARGE POINT (SEE SPECIFICATION #5). ABOVE-SLAB RISER DUCT PIPE THAT RUNS BETWEEN THE SLAB PENETRATION AND THE ROOFTOP EXHAUST DISCHARGE SHALL BE INSTALLED PER APPLICABLE BUILDING CODE AND AS SPECIFIED IN THE CONSTRUCTION DOCUMENTS AND DRAWINGS. 4.1.VERTICAL RISER PIPING SHALL BE AIRTIGHT. 4.2.VERTICAL RISER PIPING MUST BE INSTALLED PER 2018 NORTH CAROLINA STATE PLUMBING CODE. 4.3.VIMS BELOW AND ABOVE GRADE SOLID PIPING SHALL NOT BE TRAPPED AND SHALL BE SLOPED A MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN. BENDS, TURNS, AND ELBOWS IN VERTICAL RISER PIPES SHALL BE MINIMIZED FROM THE SLAB TO THE ROOFTOP. 5.4" METAL RISER DUCT PIPING SHALL EXTEND IN A VERTICAL ORIENTATION THROUGH THE PARKING GARAGE ROOF AND TERMINATE A MINIMUM OF 2 FT ABOVE THE PARKING DECK ROOF LINE. EMPIRE MODEL EVO4SS STAINLESS STEEL VENTILATOR (OR ALTERNATE APPROVED BY DESIGN ENGINEER) SHALL BE INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. THE 4" RISER DUCT PIPE AND THE VENTILATOR SHALL BE SECURED IN A VERTICAL ORIENTATION. 5.1.EXHAUST DISCHARGE LOCATIONS SHALL BE A MINIMUM OF 10 FT FROM ANY OPERABLE OPENING OR AIR INTAKE INTO THE BUILDING. NOTE THAT DISCHARGE LOCATIONS ON THE PARKING GARAGE ROOFTOP DEPICTED IN THE VAPOR MITIGATION PLAN MAY BE REPOSITIONED AS LONG AS THE NEW POSITION MEETS THE REQUIREMENTS PRESENTED ABOVE, PENDING ENGINEER APPROVAL. 5.2.AN ELECTRICAL JUNCTION BOX (120VAC REQUIRED) FOR OUTDOOR USE SHALL BE INSTALLED NEAR THE PIPE DISCHARGE LOCATION ON THE ROOFTOP FOR POTENTIAL FUTURE CONVERSION TO ELECTRIC FANS, IF REQUIRED. ALL WIRING AND ELECTRICAL SHALL BE INSTALLED PER APPLICABLE BUILDING AND ELECTRICAL CODES. 6.ABOVE-SLAB ACCESSIBLE RISER DUCT PIPING SHALL BE PERMANENTLY IDENTIFIED BY MEANS OF A TAG OR STENCIL AT A MINIMUM OF ONCE EVERY 10-LINEAR FT WITH "VAPOR MITIGATION: CONTACT MAINTENANCE". LABELS SHALL ALSO BE FIXED NEAR THE VENTILATORS IN AN ACCESSIBLE LOCATION AT THE ROOF DISCHARGE. 7.MONITORING POINTS SHALL CONSIST OF 2-INCH DIAMETER SCH 40 PVC PIPE WITH A 90-DEGREE ELBOW TO FORM AN “L” SHAPE. A MINIMUM OF 6” SECTION OF PIPE AND MAXIMUM 6 FT SECTION OF PIPE, OR OTHERWISE APPROVED BY THE DESIGN ENGINEER, SHALL BE SET WITHIN THE BASE COURSE LAYER WITH AN OPEN ENDED PIPE OR PIPE PROTECTION SCREEN AT THE TERMINATION. THE PIPE TERMINATION SHALL BE ENCASED WITHIN THE BASE COURSE LAYER. 7.1.THE HORIZONTAL PIPING SHALL BE SLOPED A MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN TOWARDS THE PIPE TERMINATION AND PREVENT MOISTURE FROM COLLECTING AT THE 90-DEGREE ELBOW. 7.2.THE MONITORING POINT INTAKE SHALL BE PLACED A MINIMUM OF 5-FT FROM EXTERIOR FOOTERS. 7.3.MONITORING POINTS LOCATED IN STAIRWELLS ARE INTENDED TO BE INSTALLED BELOW STAIRWELL LANDINGS AND MAY BE RE-POSITIONED TO PROVIDE SUITABLE ACCESS TO THE POINT PER APPROVAL OF THE DESIGN ENGINEER. 7.4.THE END OF THE PIPE SHALL CONTAIN AN OPEN PIPE, A PVC TERMINATION SCREEN, HAVE A MINIMUM OF THREE 58" DIA HOLES DRILLED INTO A SOLID CAP, OR SHALL HAVE VENT SLOTS WITH MINIMUM 1 SQUARE INCH OF OPEN AREA. 7.5.A 4-INCH DIAMETER ADJUSTABLE FLOOR CLEAN-OUT (ZURN INDUSTRIES MODEL #CO2450-PV4, OR EQUIVALENT) SHALL BE INSTALLED AND SET FLUSH WITH THE FINISHED CONCRETE SURFACE. 8.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL USE "LOW OR NO VOC" PRODUCTS AND MATERIALS, WHEN POSSIBLE, AND SHALL NOT USE PRODUCTS CONTAINING THE COMPOUNDS TETRACHLOROETHENE (PCE) OR TRICHLOROETHENE (TCE). THE CONSTRUCTION CONTRACTOR AND SUB-CONTRACTORS SHALL PROVIDE SAFETY DATA SHEETS (SDS) TO THE ENGINEER FOR THE PRODUCTS AND MATERIALS USED FOR CONSTRUCTION OF THE VIMS. 9.IN INSTANCES WHERE A THICKENED FOOTING OR RETAINING WALL IS NOT SPECIFIED AT THE EXTENT OF VAPOR LINER, A THICKENED SLAB OR FOOTER SHALL BE INSTALLED BY THE CONTRACTOR THAT INCLUDES A SOIL SUBBASE TO CREATE A CUT-OFF FOOTER AT THE EXTENT OF VAPOR LINER. THE ADDITIONAL THICKENED SLAB OR FOOTER SHALL NOT ALLOW FOR CONTINUOUS GRAVEL BETWEEN THE VIMS EXTENTS AND EXTERIOR NON-MITIGATED AREAS. 10.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL AVOID THE USE OF TEMPORARY FORM BOARDS THAT PENETRATE THE VAPOR LINER WHERE POSSIBLE. IF TEMPORARY FORM BOARDS ARE USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR LINER SHALL BE LIMITED AND SMALL DIAMETER SOLID STAKES (I.E. METAL STAKES) SHALL BE USED. IN ALL CASES, AS FORM BOARDS ARE REMOVED, THE CONTRACTOR OR SUB-CONTRACTORS SHALL RESEAL ALL PENETRATIONS IN ACCORDANCE WITH VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS. 10.1.HOLLOW FORMS OR CONDUITS THAT CONNECT THE SUB-SLAB ANNULAR SPACE TO ENCLOSED ABOVE SLAB SPACES SHALL NOT BE PERMITTED. 10.2.AREAS OF UTILITY BANKS (e.g. LOCATION OF THREE OR MORE ADJACENT UTILITIES THROUGH THE SLAB) SHALL BE SEALED TO CREATE AN AIR-TIGHT BARRIER AROUND THE UTILITY CONDUITS USING RAVEN POUR N'SEAL OR STEGO-INDUSTRIES MASTIC PRIOR TO THE SLAB POUR. OTHER SEALANT METHODS IF USED SHALL BE APPROVED BY THE DESIGN ENGINEER PRIOR TO APPLICATION. 11.INSPECTIONS: THE INSTALLATION CONTRACTOR(S) SHALL NOT COVER ANY PORTIONS OF THE VIMS WITHOUT INSPECTION. INSPECTIONS OF EACH COMPONENT OF THE VIMS SHALL BE CONDUCTED BY THE DESIGN ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS COMPONENTS ARE INSTALLED PER THE APPROVED DESIGN. THE REQUIRED INSPECTION COMPONENTS INCLUDE: (1) INSPECTION OF SUB-SLAB PIPING LAYOUT, (2) GRAVEL PLACEMENT, AND (3) MONITORING POINT PLACEMENT PRIOR TO INSTALLING VAPOR BARRIER; (4) INSPECTION OF VAPOR BARRIER PRIOR TO POURING CONCRETE; (5) INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (6) INSPECTION OF VENTILATOR AND RISER DUCT PIPE CONNECTIONS. INSPECTIONS WILL BE COMBINED WHEN POSSIBLE DEPENDING ON THE CONSTRUCTION SEQUENCE/SCHEDULE. THE CONSTRUCTION CONTRACTOR(S) SHALL COORDINATE WITH THE ENGINEER TO PERFORM THE REQUIRED INSPECTIONS. A MINIMUM 48-HOUR NOTICE SHALL BE GIVEN TO THE ENGINEER PRIOR TO THE REQUIRED INSPECTION(S). 12.PIPE SLEEVES, IF USED, SHALL BE PROPERLY SEALED TO PREVENT A PREFERENTIAL AIR PATHWAY FROM BELOW THE SLAB INTO THE BUILDING. REFER TO TO STRUCTURAL DRAWINGS FOR FOOTING DETAILS ADDRESSING VIMS PIPING. 13.WATERPROOFING INCLUDING MEMBRANES AND DRAINAGE MATS SHALL BE INSTALLED IN ACCORDANCE WITH THE ARCHITECTURAL AND STRUCTURAL PLANS. IF WATERPROOFING IS PRESENT, THE VAPOR BARRIER SHALL BE INSTALLED BETWEEN WATERPROOFING AND ANY DRAINAGE FEATURES INCLUDING DRAINAGE MATS. THE INSTALLER SHALL CONFIRM THAT THE WATERPROOFING PRODUCTS AND SEALANTS USED DURING CONSTRUCTION ARE COMPATIBLE WITH THE SPECIFIED VAPOR BARRIER. 14.IF POUR-BACK AREAS ARE PRESENT, THE VIMS PIPING, VAPOR BARRIER, AND MONITORING POINTS SHALL BE PROTECTED BY THE INSTALLATION CONTRACTOR AND SUB-CONTRACTORS THROUGHOUT THE PROJECT. 14.1.PROTECTIVE MEASURES (E.G., FLAGGING, PROTECTIVE BOARDS, ETC.) SHALL BE USED AS NEEDED TO PREVENT DAMAGE TO THESE COMPONENTS. 14.2.THE MONITORING POINTS AND RISER DUCT PIPING MUST BE CAPPED WITH A REMOVABLE SLIP-CAP OR PLUG IMMEDIATELY FOLLOWING INSTALLATION TO PREVENT WATER AND/OR DEBRIS FROM ENTERING THE VIMS. 14.3.SIGNAGE THAT INDICATES PRECAUTIONS SHOULD BE TAKEN WHILE WORKING IN THE AREAS WITH EXPOSED BARRIERS WILL BE POSTED IN PROMINENT LOCATIONS IN THE AREAS OF TENANT SPACES. 14.4.ADDITIONAL VIMS INSPECTIONS OF THE POUR-BACK SPACES ARE REQUIRED DURING TENANT UPFIT. THE UPFIT CONTRACTOR MUST CONTACT THE DESIGN ENGINEER, OR ENGINEER'S DESIGNEE, TO PERFORM THE INSPECTIONS DESCRIBED IN SPECIFICATION 11. H&H NO. POR-002 2161 HAWKINS2161 HAWKINS STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 23060-19-060DEVELOPER: PORTMAN RESIDENTIAL 305 PEACHTREE CENTER AVE. SUITE 575 ATLANTA, GEORGIA 30303 REVISIONS REV DATE DESCRIPTION 0 5/17/22 DEQ SUBMISSION 1 8/2/22 DEQ COMMENTS DATE: 8-2-22 S:\AAA-Master Projects\Portman Holdings\Hawkins Tower\VIMP Details.dwg, VM-1, 8/2/2022 1:24:58 PM, amckenzie VAPOR BARRIER AND BASE COURSE (TYPICAL)1 BASE COURSE - CLEAN #57 STONE MIN 4" THICK BENEATH VAPOR BARRIER (SEE SPECIFICATION #1) VAPOR BARRIER (SEE SPECIFICATION #1) CONCRETE FLOOR SLAB SUB-BASE NTSVM-2 3" SCH 40 THREADED FLUSH JOINT SLOTTED PVC PIPE SET WITHIN MIN 4" BASE COURSE (SEE SPECIFICATION #3) VAPOR BARRIER (SEE SPECIFICATION #2) SUB-BASE CONCRETE FLOOR SLAB SLOTTED COLLECTION PIPE (TYPICAL)2 NTSVM-2 PVC ENDCAP - DRILL APPROX. 3 - 1/4" HOLES BASE COURSE SUB-BASE VIMS PIPING THROUGH INTERIOR GRADE BEAM (TYP) NTS 3 VM-2 SOLID 3" SCH 40 PVC VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS PROVIDE PIPE SUPPORT TO PREVENT LOW POINT IN SOLID PIPE. MAINTAIN 1% SLOPE TOWARD SLOTTED SECTION OF PIPE (SEE SPECIFICATION #2) VAPOR BARRIER SOLID TO SLOTTED 3" SCH 40 PVC PIPE TRANSITION (SLIP COUPLING OR THREADED JOINT) WALL (VARIES) PIPE SLEEVE (SEE SPECIFICATION #12) VIMS PIPING THROUGH DEPRESSIONS IN SLAB-ON-GRADE (TYP) NTS 4 VM-2 SUB-BASE CONCRETE FLOOR SLAB VAPOR LINER BASE COURSE SOLID TO SLOTTED 3" SCH 40 PVC PIPE TRANSITION (SLIP COUPLING OR THREADED JOINT) 3" SCH 40 PVC 45-DEGREE ELBOW VAPOR LINER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS SOLID 3" SCH 40 PVCPIPE SLEEVE (SEE SPECIFICATION #12) WALL (VARIES) CONCRETE FLOOR SLAB BASE COURSE SUB-BASE VIMS PIPING THROUGH THICKENED SLAB (OPTIONAL SUB-SLAB COLLECTION PIPE) NTS 3A VM-2 SOLID 3" SCH 40 PVC VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS PROVIDE PIPE SUPPORT TO PREVENT LOW POINT IN SOLID PIPE. MAINTAIN 1% SLOPE TOWARD SLOTTED SECTION OF PIPE (SEE SPECIFICATION #2) VAPOR BARRIER VAPOR LINER BENEATH FOOTER WALL (VARIES) PIPE SLEEVE SOIL GAS COLLECTOR MAT MANUFACTURER SPECIFIED FITTING TO 3" SCH 40 PVC SOIL GAS COLLECTOR MAT IS NOT PERMITTED TO BE INSTALLED THROUGH CONCRETE FOOTERS OR THICKENED SLABS VIMS PIPING THROUGH SLAB STEP (OPTIONAL SUB-SLAB COLLECTION PIPE) NTS 4A VM-2 SUB-BASE VAPOR BARRIER BASE COURSE 3" SCH 40 PVC 45-DEGREE ELBOW VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS SOLID 3" SCH 40 PVCPIPE SLEEVE (SEE SPECIFICATION #12) WALL (VARIES) SOIL GAS COLLECTOR MAT MANUFACTURER SPECIFIED FITTING TO 3" SCH 40 PVC VIMS AT VERTICAL RISERS WITH 90 DEGREE ELBOW (TYP) NTS 5 VM-2 BASE COURSE SUB-BASE SLOTTED 3" SCH 40 PVC VAPOR LINER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS VAPOR LINER 4" DIA METAL RISER DUCT PIPE (SEE SPECIFICATION #4, #5 & #6) WALL OR COLUMN (VARIES) 4" SCH 40 PVC 90-DEGREE ELBOW4" TO 3" SCH 40 PVC REDUCER AIR-TIGHT 4" DIA PVC TO METAL TRANSITION COUPLING SUPPORT PIPE AS NECESSARY VIMS AT VERTICAL RISER (OPTIONAL SUB-SLAB COLLECTION PIPE) NTS 5A VM-2 BRICK OR HOUSE SIDING EXTERNAL WALL (NOT PRESENT AT ALL LOCATIONS) STUD WALL VAPOR LINER SEALED TO PIPE AND CONCRETE PER MANUFACTURER INSTRUCTIONS. 3" SCH 40 PVC RISER DUCT PIPE (SEE SPECIFICATION #4, #5 & #6) 4" TO 3" PVC REDUCER 4" SCH 40 PVC RISER DUCT PIPE BASE COURSE SOIL GAS COLLECTOR MAT SUBBASE SOIL GAS COLLECTOR MAT CONNECTION SEALED TO 4" SCH 40 PVC RISER WITH POLYURETHANE SEALANT SOIL GAS COLLECTOR MAT CONNECTION BLOCK TO PVC (ONE 0.5" DIAMETER HOLE DRILLED IN BOTTOM FOR MOISTURE DRAINAGE) TERMINATE VAPOR BARRIER AT SOIL GRADE, WHERE APPLICABLE COLUMN BLOCKOUT VIMS AT INTERIOR COLUMN (TYP) NTS 6 VM-2 SUB-BASE CONCRETE FLOOR SLAB BASE COURSE VAPOR BARRIER T.O.F. CIP CONCRETE COLUMN CONCRETE FOOTING T.O.C. VAPOR BARRIER SEALED OUTSIDE OF CONCRETE COLUMN PER MANUFACTURER INSTRUCTIONS SEE DETAIL 7/VM-2 COLUMN BLOCKOUT VIMS PIPING AT INTERIOR COLUMN WITH RISER DUCT PIPING (TYP) NTS 8 VM-2 SUB-BASE BASE COURSE VAPOR BARRIER CONCRETE FOOTING VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS SLOTTED 3" SCH 40 PVC 4" SCH 40 PVC 90-DEGREE ELBOW 4" METAL RISER DUCT PIPE (SEE SPECIFICATIONS #5 & #6) PIPE SLEEVE (SEE SPECIFICATION #12) 4" TO 3" SCH 40 PVC REDUCER SEE DETAIL 7/VM-2 VAPOR BARRIER SEALED OUTSIDE OF CONCRETE COLUMN PER MANUFACTURER INSTRUCTIONS AIR-TIGHT 4" DIA PVC TO METAL TRANSITION COUPLING VIMS AT EXTERIOR COLUMN (TYP) NTS 9 VM-2 SUB-BASE CONCRETE FLOOR SLAB BASE COURSE VAPOR BARRIER CIP CONCRETE COLUMN VAPOR BARRIER SEALED TO CONCRETE PER MANUFACTURERS INSTRUCTIONS COLUMN BLOCKOUT VAPOR BARRIER SEALED TO CONCRETE ON EACH SIDE OF COLUMN SEE DETAIL 7/VM-2 VIMS AT COLUMNS - EXPANSION DETAIL (TYP) NTS 7 VM-2 CIP CONCRETE COLUMN CONCRETE FLOOR SLAB VAPOR BARRIER SEALED TO CONCRETE PER MANUFACTURERS INSTRUCTIONS COLUMN EXPANSION FORM (INSTALLED OVER VAPOR BARRIER) VAPOR BARRIER H&H NO. POR-002 VAPOR MITIGATION PLAN PREPARED BY: 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology VAPOR INTRUSION MITIGATION SYSTEM CROSS-SECTION DETAILS #1-10 VM-2 NOTES: VIMS = VAPOR INTRUSION MITIGATION SYSTEM TYP = TYPICAL SCH = SCHEDULE PVC = POLYVINYL CHLORIDE NTS = NOT TO SCALE ALL PIPE MEASUREMENTS ARE BY DIAMETER PROFESSIONAL APPROVAL2161 HAWKINS2161 HAWKINS STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 23060-19-060DEVELOPER: PORTMAN RESIDENTIAL 305 PEACHTREE CENTER AVE. SUITE 575 ATLANTA, GEORGIA 30303 REVISIONS REV DATE DESCRIPTION 0 5/17/22 DEQ SUBMISSION 1 8/2/22 DEQ COMMENTS DATE: 8-2-22 S:\AAA-Master Projects\Portman Holdings\Hawkins Tower\VIMP Details.dwg, VM-2, 8/2/2022 1:26:03 PM, amckenzie VIMS AT SHEAR WALL NTS 10 VM-2A VAPOR BARRIER SEALED TO OUTSIDE OF CONCRETE AND WATERPROOFING/INSULATION (IF PRESENT) PER MANUFACTURER INSTRUCTIONS VAPOR BARRIER VIMS ELEVATOR PIT (TYP) NTS 11 VM-2A VAPOR BARRIER SEALED TO OUTSIDE OF CONCRETE AND WATERPROOFING/INSULATION (IF PRESENT) PER MANUFACTURER INSTRUCTIONS VAPOR BARRIER SUB-BASE BASE COURSE PILE CAP SEE DETAIL 12/VM-2A 12 VM-2A SOIL SUB-BASE VAPOR BARRIER DRAINAGE MAT (IF PRESENT) CONCRETE NTS VIMS AT ELEVATOR PIT - WATERPROOFING DETAIL (TYP) WATERPROOFING MEMBRANE (IF PRESENT - REFER TO ARCH. PLANS) (SEE SPECIFICATION #13) OPEN AIR SPACE ENCLOSED INTERIOR SPACE VIMS AT RETAINING WALL ADJACENT TO OCCUPIED SPACE (TYP) NTS 13 VM-2A SUB-BASE BASE COURSE VAPOR BARRIER VAPOR BARRIER SEALED TO OUTSIDE OF CONCRETE AND WATERPROOFING MEMBRANE (IF PRESENT) PER MANUFACTURER INSTRUCTIONS (SEE DETAIL 12/VM-2A) WATERPROOFING AND RIGID INSULATION (IF PRESENT - REFER TO ARCH. PLANS) DRAIN WALL (VARIES) CONCRETE FLOOR SLAB VIMS AT LOADING DOCK NTS 14 VM-2A VAPOR BARRIER SUB-BASE WALL (VARIES) OPEN AIR SPACE ENCLOSED INTERIOR SPACE BASE COURSE VIMS AT DOCK LEVELER NTS 15 VM-2A SUB-BASE VAPOR BARRIER DOCK LEVELER VAPOR BARRIER SEALED TO CONCRETE PER MANUFACTURER INSTRUCTIONS BASE COURSE WALL (VARIES) BASE COURSE SUB-BASE VAPOR BARRIER AT SLAB EDGE (TYP)16 NTSVM-2A VAPOR LINERFINAL GRADE (VARIES) OPTIONAL VAPOR LINER INSTALLATION METHOD TERMINATE VAPOR LINER AT SOIL GRADE, WHERE APPLICABLE OPEN-AIR EXTERIOR ENCLOSED INTERIOR VAPOR RETARDER, IF WARRANTED, BY OTHERS VIMS AT UTILITY BANK (TYP)17 NTSVM-2A INSTALL VAPOR BARRIER AS CLOSELY AS POSSIBLE TO EACH PENETRATION PRIOR TO APPLICATION OF SEALANT SEALANT SET AROUND UTILITY BANKS WITHIN DAM (e.g. RAVEN POUR 'N SEAL OR MASTIC WITH 2" MIN OVERLAP WITH VAPOR BARRIER (SEE SPECIFICATION #10) SUB-BASE BASE COURSE VAPOR BARRIER CONCRETE SLAB FINISHED FLOOR SLAB 2" SCH 40 PVC SET WITHIN GRAVEL LAYER 2" DRAIN EXPANSION TEST PLUG VIMS MONITORING POINT - TYPICAL DETAIL VIEW NTS 18 VM-A VAPOR BARRIER PENETRATION SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS 2" SCH 40 PVC 90 DEGREE ELBOW FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURN INDUSTRIES MODEL #CO2450-PV4 (OR ENGINEER APPROVED EQUIVALENT) FLUSH WITH FINISHED FLOOR BASE COURSE 4" x 2" FLUSH REDUCER BUSHING PVC VENTED ENDCAP (SEE SPECIFICATION #7) BASE COURSE FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURN INDUSTRIES MODEL #CO2450-PV4 (OR ENGINEER APPROVED EQUIVALENT) SEE DETAIL 25/VM-2A FLUSH WITH FINISHED FLOOR 19 NTSVM-2A VIMS MONITORING POINT WITH EXTENDED INTAKE PIPE VAPOR LINER 2" SOLID SCH 40 PVC LENGTH VARIES - REFER TO SHEET VM-1 2" SCH 40 PVC 90-DEGREE ELBOW VAPOR LINER PENETRATION SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS WALL (VARIES) PVC VENTED ENDCAP 4" DIA METAL PIPE (VARIES) PIPE HANGER SUPPORT TO CEILING PIPE SUPPORT (SPLIT-RING HANGER, OR SIMILAR) PIPE SUPPORT IN GARAGE (TYP)20 NTSVM-2A AIR-TIGHT COUPLINGS REQUIRED FOR PIPE CONNECTIONS DURING EXPOSED-PIPE LENGTHS MIN 1% SLOPE (1/8" PER FOOT) TOWARD EXTRACTION POINT (SEE SPECIFICATION #4) VIMS VENTILATOR EXHAUST (TYPICAL)21 NTSVM-2A 4" HEAVY DUTY NO HUB COUPLING STATIONARY VENTILATOR (EMPIRE EV04SS VENTILATOR OR ENGINEER APPROVED EQUIVALENT)4" METAL RISER DUCT PIPE THROUGH ROOF FLASHING ROOFTOP VAPOR INTRUSION MITIGATION SYSTEM CROSS-SECTION DETAILS #10-21NOTES: VIMS = VAPOR INTRUSION MITIGATION SYSTEM TYP = TYPICAL SCH = SCHEDULE PVC = POLYVINYL CHLORIDE NTS = NOT TO SCALE ALL PIPE MEASUREMENTS ARE BY DIAMETER H&H NO. POR-002 VAPOR MITIGATION PLAN PREPARED BY: 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology PROFESSIONAL APPROVAL2161 HAWKINS2161 HAWKINS STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 23060-19-060DEVELOPER: PORTMAN RESIDENTIAL 305 PEACHTREE CENTER AVE. SUITE 575 ATLANTA, GEORGIA 30303 VM-2A REVISIONS REV DATE DESCRIPTION 0 5/17/22 DEQ SUBMISSION 1 8/2/22 DEQ COMMENTS DATE: 8-2-22 S:\AAA-Master Projects\Portman Holdings\Hawkins Tower\VIMP Details.dwg, VM-2A, 8/2/2022 1:26:53 PM, amckenzie 0141RESIDENTIALLOBBY0109MAINTELECOMROOM0103GENERATORROOM0110HOUSEKEEPINGOFFICE0113MAINTENANCEOFFICE0112RETAIL EL.ROOM0105MAINTENANCESTORAGE0101TRANSFORMERVAULT0102MAINELECTRICALROOM0104FIRE PUMP,DOMESTICBOOSTERPUMP, &WATERMETERROOM0114LOADINGDOCK0118STORAGE0117F.C.C.0119RETAILSPACE 10122RETAILSPACE 20111HOUSEKEEPINGSTORAGE0123RETAILSPACE 30128RES. STOR.0129RES. STOR.0107RESIDENTIALSTORAGE0124RETAILSPACE 40125RETAILSPACE 50126RETAILSPACE 60127RETAILSPACE 70108CORRIDOR0121LOBBYRETAIL0143MAIL ROOM0144PACKAGEROOM0146VESTIBULE0147RESTROOM0148RESTROOMPROMINENTENTRANCEPROMINENTENTRANCEPROMINENT ENTRANCE PROMINENT ENTRANCE PROMINENT ENTRANCE PROMINENT ENTRANCE PROMINENT ENTRANCE PROMINENT ENTRANCEPROMINENTENTRANCEPROMINENTENTRANCEPROMINENTENTRANCEPROMINENTENTRANCE 0130BACKFLOWROOM0149JANITORSCLOSET0150STOR.0145STOR.C0101RESIDENCEELEVATORLOBBYMP-15MP-14MP-13MP-12MP-5MP-3MP-1MP-2MP-6MP-4MP-8MP-10MP-7MP-15MP-11E-1E-2E-3E-4E-5E-6E-7MP-16MP-9VERTICAL STACKING DIAGRAMNPROJECTNROTHNTRUENORTHLEGENDEXTENT OF VAPOR LINERHORIZONTAL COLLECTION PIPING OR SOIL GAS COLLECTOR MATFLOOR PENETRATION LOCATION 4" DIA METAL VERTICAL RISER WITH EXHAUSTIDENTIFICATION NUMBER2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVERPROPOSED INDOOR AIR SAMPLE LOCATIONPOURBACK AREA (CONCRETE SLAB TO BE POURED AFTER TENANT UPFIT)MP-1E-2VAPOR INTRUSIONMITIGATION SYSTEMSUB-SLAB LAYOUTLEVEL 1H&H NO. POR-002VAPOR MITIGATION PLANPREPARED BY:2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyPROFESSIONALAPPROVAL2161 HAWKINS 2161 HAWKINS STREET CHARLOTTE, NORTH CAROLINA BROWNFIELDS PROJECT NO. 23060-19-060 DEVELOPER:PORTMAN RESIDENTIAL305 PEACHTREE CENTER AVE.SUITE 575ATLANTA, GEORGIA 30303VM-3VM-3LEVEL 1 PLANPROPOSED SUB-SLABSOIL GAS SAMPLELOCATIONPROPOSED SUB-SLABSOIL GAS SAMPLELOCATIONPROPOSED SUB-SLABSOIL GAS SAMPLELOCATIONPROPOSED SUB-SLABSOIL GAS SAMPLELOCATIONPROPOSED SUB-SLABSOIL GAS SAMPLELOCATIONPROPOSED SUB-SLABSOIL GAS SAMPLELOCATIONPROPOSED SUB-SLABSOIL GAS SAMPLELOCATION3VM-2PROPOSED SUB-SLABSOIL GAS SAMPLELOCATION16VM-2A10VM-2A15VM-2A14VM-2A16VM-2A16VM-2A5/21VM-2/2A8/21VM-2/2A8/21VM-2/2A5/21VM-2/2A16VM-2A5/21VM-2/2A9VM-26VM-213VM-2A10VM-2A11VM-2A1VM-22VM-218VM-2A18VM-2A18VM-2AREVISIONSREVDATEDESCRIPTION05/17/22DEQ SUBMISSION18/2/22DEQ COMMENTSDATE: 8-2-22S:\AAA-Master Projects\Portman Holdings\Hawkins Tower\VIMP.dwg, vm-3, 8/2/2022 1:27:48 PM, amckenzie ONE HOUR RATED FIRE BARRIER RATED WALLS LEGEND TWO HOUR RATED FIRE BARRIER THREE HOUR RATED FIRE BARRIER SMOKE PARTITION 0201 1A1 ANSI 0202 1A2 0203 1A3 0204 2A1 0205 S1A 0206 1B1 0209 S2 0207 S1B 0208 1B2 0210 1C 0211 1D 0212 S3 0213 S4 ANSI 0214 1E1 0215 1F1 0216 1G1 0217 3J1 0218 3K1 ANSI C0205 VESTIBULE C0203 ELECT. ROOM C0201 RESIDENCE ELEVATOR LOBBY C0204 TELECOM ROOM C0206 FUTURE RETAIL CU'S E-1 E-2 E-3 E-4 E-5 E-6 E-7 VERTICAL STACKING DIAGRAM N PROJECT NROTH N TRUE NORTHVM-4 LEVEL 2 PLAN H&H NO. POR-002 VAPOR MITIGATION PLAN PREPARED BY: 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology PROFESSIONAL APPROVAL2161 HAWKINS2161 HAWKINS STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 23060-19-060DEVELOPER: PORTMAN RESIDENTIAL 305 PEACHTREE CENTER AVE. SUITE 575 ATLANTA, GEORGIA 30303 VM-4 VAPOR INTRUSION MITIGATION SYSTEM VERTICAL RISER LAYOUT LEVEL 2 NOTES: 1.IF NO CEILING PENETRATION LOCATION SHOWN, THE RISER SHALL RUN VERTICALLY FROM THE FLOOR PENETRATION LOCATION. LEGEND FLOOR PENETRATION 4" DIA METAL VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER 4" DIA METAL PIPE HORIZONTAL RUN CEILING PENETRATION 4" DIA VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER E-2 E-2 REVISIONS REV DATE DESCRIPTION 0 5/17/22 DEQ SUBMISSION 1 8/2/22 DEQ COMMENTS DATE: 8-2-22 S:\AAA-Master Projects\Portman Holdings\Hawkins Tower\VIMP.dwg, vm-4, 8/2/2022 1:30:15 PM, amckenzie ONE HOUR RATED FIRE BARRIER RATED WALLS LEGEND TWO HOUR RATED FIRE BARRIER THREE HOUR RATED FIRE BARRIER SMOKE PARTITION 0601 1A1 ANSI 0602 1A2 0603 1A3 ALT 0604 2A1 ALT 0605 S1A 0606 1B1 0609 S2 0607 S1B 0608 1B2 0611 1D 0612 S3 0613 S4 ANSI 0614 1E2 0617 3J2 0618 3K2 0610 1C 0615 1F3 0616 1G2 C0606 CONDENSING UNIT ROOM C0603 ELECT. ROOM C0601 RESIDENCE ELEVATOR LOBBY C0604 TELECOMROOM C0605 VESTIBULE C0608 CONDENSING UNIT ROOM E-1 E-2 E-3 E-4 E-5 E-6 E-7 E-6 E-5 E-3 E-2 E-1 VERTICAL STACKING DIAGRAM N PROJECT NROTH N TRUE NORTHVM-5 LEVEL 6 PLAN H&H NO. POR-002 VAPOR MITIGATION PLAN PREPARED BY: 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology PROFESSIONAL APPROVAL2161 HAWKINS2161 HAWKINS STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 23060-19-060DEVELOPER: PORTMAN RESIDENTIAL 305 PEACHTREE CENTER AVE. SUITE 575 ATLANTA, GEORGIA 30303 VM-5 VAPOR INTRUSION MITIGATION SYSTEM VERTICAL RISER LAYOUT LEVEL 6 NOTES: 1.IF NO CEILING PENETRATION LOCATION SHOWN, THE RISER SHALL RUN VERTICALLY FROM THE FLOOR PENETRATION LOCATION. LEGEND FLOOR PENETRATION 4" DIA METAL VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER HORIZONTAL RUN 4" DIA METAL PIPE CEILING PENETRATION 4" DIA VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER E-2 E-2 20/21 VM-2A 20/21 VM-2A POSITION DISCHARGE ON LEVEL 7 MINIMUM 10' FROM AIR INTAKE OR AREA WITH PUBLIC ACCESS PIPE INSTALLED ALONG CEILING OF LEVEL 6 REVISIONS REV DATE DESCRIPTION 0 5/17/22 DEQ SUBMISSION 1 8/2/22 DEQ COMMENTS DATE: 8-2-22 S:\AAA-Master Projects\Portman Holdings\Hawkins Tower\VIMP.dwg, vm-5, 8/2/2022 1:31:07 PM, amckenzie ONE HOUR RATED FIRE BARRIERRATED WALLS LEGENDTWO HOUR RATED FIRE BARRIERTHREE HOUR RATED FIRE BARRIERSMOKE PARTITION07201M07041J107061L(1)07071K2(1)07081L(2)07091K2(2)07101K307111Z07122G07141P07151Q107171S07051K107032E07021H07012D07192L0718S507162K107131NC0704ELECT.ROOMC0701RESIDENCEELEVATORLOBBYC0705TELECOMROOM0721PET SPA0720PET SPAVEST.DOG PARKE-4E-7E-6E-5E-3E-2E-1VERTICAL STACKING DIAGRAMNPROJECTNROTHNTRUENORTHVM-5LEVEL 7 PLANH&H NO. POR-002VAPOR MITIGATION PLANPREPARED BY:2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyPROFESSIONALAPPROVAL2161 HAWKINS 2161 HAWKINS STREET CHARLOTTE, NORTH CAROLINA BROWNFIELDS PROJECT NO. 23060-19-060 DEVELOPER:PORTMAN RESIDENTIAL305 PEACHTREE CENTER AVE.SUITE 575ATLANTA, GEORGIA 30303VM-6VAPOR INTRUSIONMITIGATION SYSTEMVERTICAL RISERLAYOUTLEVEL 7NOTES:1.IF NO CEILING PENETRATIONLOCATION SHOWN, THE RISER SHALLRUN VERTICALLY FROM THE FLOORPENETRATION LOCATION.LEGENDDISCHARGE 4" DIA METAL VERTICAL RISER WITH EXHAUST IDENTIFICATIONNUMBERE-2POSITION DISCHARGE ON LEVEL 6MINIMUM 10' FROM AIR INTAKE ORAREA WITH PUBLIC ACCESSINSTALL ELECTRICAL OUTLETS WITHIN5' OF RISER ON LEVEL 5 FORPOTENTIAL FUTURE ELECTRIC FANPOSITION DISCHARGE ON LEVEL 7MINIMUM 10' FROM AIR INTAKE ORAREA WITH PUBLIC ACCESSINSTALL ELECTRICAL OUTLETS WITHIN5' OF RISER ON LEVEL 5 FORPOTENTIAL FUTURE ELECTRIC FANPOSITION DISCHARGE ON LEVEL 7MINIMUM 10' FROM AIR INTAKE ORAREA WITH PUBLIC ACCESSINSTALL ELECTRICAL OUTLETS WITHIN5' OF RISER ON LEVEL 5 FORPOTENTIAL FUTURE ELECTRIC FAN21VM-2AREVISIONSREVDATEDESCRIPTION05/17/22DEQ SUBMISSION18/2/22DEQ COMMENTSDATE: 8-2-22S:\AAA-Master Projects\Portman Holdings\Hawkins Tower\VIMP.dwg, vm-6, 8/2/2022 1:32:47 PM, amckenzie Attachment D VIMS Product Specifications PRODUCT PART # VaporBlock® Plus™ 20 ................................................................ VBP20 UNDER-SLAB VAPOR / GAS BARRIER Under-Slab Vapor/Gas Retarder © 2018 RAVEN INDUSTRIES INC. All rights reserved. VAPORBLOCK® PLUS™VBP20 PRODUCT DESCRIPTION VaporBlock® Plus™ is a seven-layer co-extruded barrier made using high quality virgin-grade polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission. VaporBlock® Plus™ 20 is more than 100 times less permeable than typical high-performance polyethylene vapor retarders against Methane, Radon, and other harmful VOCs. Tested and verified for unsurpassed protection against BTEX, HS, TCE, PCE, methane, radon, other toxic chemicals and odors. VaporBlock® Plus™ 20 multi-layer gas barrier is manufactured with the latest EVOH barrier technology to mitigate hazardous vapor intrusion from damaging indoor air quality, and the safety and health of building occupants. VBP20 is one of the most effective underslab gas barriers in the building industry today far exceeding ASTM E-1745 (Plastic Water Vapor Retarders Used in Contact with Soil or Granular Fill Under Concrete Slabs) Class A, B and C requirements. Available in a 20 (Class A) mil thicknesses designed to meet the most stringent requirements. VaporBlock® Plus™ 20 is produced within the strict guidelines of our ISO 9001 Certified Management System. PRODUCT USE VaporBlock® Plus™ 20 resists gas and moisture migration into the building envelop when properly installed to provide protection from toxic/harmful chemicals. It can be installed as part of a passive or active control system extending across the entire building including floors, walls and crawl spaces. When installed as a passive system it is recommended to also include a ventilated system with sump(s) that could be converted to an active control system with properly designed ventilation fans. VaporBlock® Plus™ 20 works to protect your flooring and other moisture-sensitive furnishings in the building’s interior from moisture and water vapor migration, greatly reducing condensation, mold and degradation. SIZE & PACKAGING VaporBlock® Plus™ 20 is available in 10’ x 150’ rolls to maximize coverage. All rolls are folded on heavy-duty cores for ease in handling and installation. Other custom sizes with factory welded seams are available based on minimum volume requirements. Installation instructions and ASTM E-1745 classifications accompany each roll. APPLICATIONS Radon Barrier Methane Barrier VOC Barrier Brownfields Barrier Vapor Intrusion Barrier Under-Slab Vapor Retarder Foundation Wall Vapor Retarder VaporBlock® Plus™ is a seven-layer co-extruded barrier made using high quality virgin-grade polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission. VaporBlock® Plus™ Placement All instructions on architectural or structural drawings should be reviewed and followed. Detailed installation instructions accompany each roll of VaporBlock® Plus™ and can also be located at www.ravenefd.com. ASTM E-1643 also provides general installation information for vapor retarders. VAPORBLOCK® PLUS™ 20 PROPERTIES TEST METHOD IMPERIAL METRIC APPEARANCE White/Gold THICKNESS, NOMINAL 20 mil 0.51 mm WEIGHT 102 lbs/MSF 498 g/m² CLASSIFICATION ASTM E 1745 CLASS A, B & C ³ TENSILE STRENGTH ASTM E 154Section 9(D-882)58 lbf 102 N IMPACT RESISTANCE ASTM D 1709 2600 g PERMEANCE (NEW MATERIAL) ASTM E 154Section 7ASTM E 96Procedure B 0.0098 Perms grains/(ft²·hr·in·Hg) 0.0064 Perms g/(24hr·m²·mm Hg) PERMEANCE (AFTER CONDITIONING) (SAME MEASUREMENT AS ABOVE PERMEANCE) ASTM E 154Section 8, E96Section 11, E96Section 12, E96Section 13, E96 0.00790.00790.00970.0113 0.00520.00520.00640.0074 WVTR ASTM E 96Procedure B 0.0040 grains/hr-ft²0.0028 gm/hr-m² BENZENE PERMEANCE See Note ࢜ 1.13 x 10-࢙࢘P࢖VHFRU x 10-¹³ m/s TOLUENE PERMEANCE See Note ࢜ 1.57 x 10-࢙࢘P࢖VHFRU x 10-¹³ m/s ETHYLBENZENE PERMEANCE See Note ࢜ 1.23 x 10-࢙࢘P࢖VHFRU x 10-࢚࢘ m/s M & P-XYLENES PERMEANCE See Note ࢜ 1.17 x 10-࢙࢘P࢖VHFRU x 10-࢚࢘ m/s O-XYLENE PERMEANCE See Note ࢜ 1.10 x 10-࢙࢘P࢖VHFRU x 10-࢚࢘ m/s HYDROGEN SULFIDE See Note 9 1.92E-࢙࢟ m/s TRICHLOROETHYLENE (TCE) See Note ࢜ 7.66 x 10-¹¹ m²/sec or 1.05 x 10-࢚࢘ m/s PERCHLOROETHYLENE (PCE)See Note ࢜ 7.22 x 10-¹¹ m²/sec or 1.04 x 10-࢚࢘ m/s RADON DIFFUSION COEFFIECIENT K124/02/95 < 1.1 x 10 -13 m2/s METHANE PERMEANCE ASTM D 1434 3.68E-¹² m/sGas Transmission Rate (GTR):0.32 mL/m²•day•atm MAXIMUM STATIC USE TEMPERATURE 180° F 82° C MINIMUM STATIC USE TEMPERATURE - 70° F - 57° C UNDER-SLAB VAPOR / GAS BARRIER VAPORBLOCK® PLUS™VBP20 © 2018 RAVEN INDUSTRIES INC. All rights reserved. Scan QR Code to download current technical data sheets via the Raven website. Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.RavenEFD.com 061318 EFD 1125 RAVEN ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: +1 (605) 335-0174 • TF: +1 (800) 635-3456 efdsales@ravenind.comwww.ravenefd.com ³ Tests are an average of machine and transverse directions.5 Raven Industries performs seam testing at 20” per minute.6 Aqueous Phase Film Permeance. Permeation of Volatile Organic Compounds through EVOH Thin Film Membranes and Coextruded LLDPE/EVOH/ LLDPE Geomembranes, McWatters and Rowe, Journal of Geotechnical and Geoenvironmental Engineering© ASCE/ September 2015. (Permeation is the Permeation Coefficient adjusted to actual film thickness - calculated at 1 kg/m³.) The study used to determine PCE and TCE is titled: Evaluation of diffusion of PCE & TCE through high performance geomembranes by Di Battista and Rowe, Queens University 8 Feb 2018.9 The study used to determine diffusion coefficients is titled: Hydrogen Sulfide (HࢧS) Transport through Simulated Interim Covers with Conventional and Co-Extruded Ethylene-Vinyl Alcohol (EVOH) Geomembranes. INSTALLATION GUIDELINES - With VaporSeal™ Tape VaporSeal™ 4” Tape Optional Butyl Seal 2-Sided Tape Gas Barrier Applications Elements of a moisture/gas-resistant floor system. General illustration only.(Note: This example shows multiple options for waterstop placement. VaporSeal™ 4” Tape Fig. 2: VaporBlock® Plus™ Overlap Joint Sealing Methods Fig. 1: VaporBlock® Plus™ Overlapping Roll-out Method Please Note: Read these instructions thoroughly before installation to ensure proper use of VaporBlock® Plus™. ASTM E 1465, ASTM E 2121 and, ASTM E 1643 also provide valuable information regarding the installation of vapor / gas barriers. When installing this product, contractors shall conform to all applicable local, state and federal regulations and laws pertaining to residential and commercial building construction. • When VaporBlock® Plus™ gas barrier is used as part of an active control system for radon or other gas, a ventilation system will be required. • If designed as a passive system, it is recommended to install a ventilation system that could be converted to an active system if needed. Materials List: VaporBlock® Plus™ Vapor / Gas Barrier VaporSeal™* 4” Seaming Tape VaporSeal™* 12” Seaming/Repair Tape Butyl Seal 2-Sided Tape VaporBoot Plus Pipe Boots 12/Box (recommended) VaporBoot Tape (optional) POUR-N-SEAL™ (optional) 1” Foam Weather Stripping (optional) Mako® Screed Supports (optional) VAPORBLOCK® PLUS™ PLACEMENT 1.1. Level and tamp or roll granular base as specified. A base for a gas- reduction system may require a 4” to 6” gas permeable layer of clean coarse aggregate as specified by your architectural or structural drawings after installation of the recommended gas collection system. In this situation, a cushion layer consisting of a non-woven geotextile fabric placed directly under VaporBlock® Plus™ will help protect the barrier from damage due to possible sharp coarse aggregate. 1.2. Unroll VaporBlock® Plus™ running the longest dimension parallel with the direction of the pour and pull open all folds to full width. (Fig. 1) 1.3. Lap VaporBlock® Plus™ over the footings and seal with Raven Butyl Seal tape at the footing-wall connection. Prime concrete surfaces, when necessary, and assure they are dry and clean prior to applying Raven Butyl Seal Tape. Apply even and firm pressure with a rubber roller. Overlap joints a minimum of 6” and seal overlap with 4” VaporSeal™ Tape. When used as a gas barrier, overlap joints a minimum of 12” and seal in-between overlap with an optional 2-sided Raven Butyl Seal Tape. Then seal with 4” VaporSeal™ Tape centered on the overlap seam. (Fig. 2) Page 1 of 4 7RSRULJLQDOGLDJUDPDQG¿JXUHZHUHUHSULQWHGZLWKSHUPLVVLRQE\WKH3RUWODQG&HPHQW$VVRFLDWLRQ5HIHUHQFH.DQDUH+RZDUG0&RQFUHWH)ORRUVDQG0RLVWXUH(%3RUWODQG&HPHQW$VVRFLDWLRQ6NRNLH,OOLQRLVDQG1DWLRQDO5HDG\0L[HG&RQFUHWH$VVRFLDWLRQ6LOYHU6SULQJ0DU\ODQG86$SDJHV 1.4. Seal around all plumbing, conduit, support columns or other penetrations that come through the VaporBlock® Plus™ membrane. 1.4a. Method 1: Pipes four inches or smaller can be sealed with Raven VaporBoot Plus preformed pipe boots. VaporBoot Plus preformed pipe boots are formed in steps for 1”, 2”, 3” and 4” PVC pipe or IPS size and are sold in units of 12 per box (Fig. 3 & 5). Pipe boots may also be fabricated from excess VaporBlock® Plus™ membrane (Fig. 4 & 6) and sealed with VaporBoot Tape or VaporSeal™ Tape (sold separately). 1.4b. Method 2: To fabricate pipe boots from VaporBlock® Plus™ excess material (see Fig. 4 & 6 for A-F): A) Cut a square large enough to overlap 12” in all directions. B) Mark where to cut opening on the center of the square and cut four to eight slices about 3/8” less than the diameter of the pipe. C) Force the square over the pipe leaving the tightly stretched cut area around the bottom of the pipe with approximately a 1/2” of the boot material running vertically up the pipe. (no more than a 1/2” of stretched boot material is recommended) D) Once boot is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in between the two layers. Secure boot down firmly over the membrane taking care not to have any large folds or creases. E) Use VaporBoot Tape or VaporSeal™ Tape to secure the boot to the pipe. VaporBoot Tape (option) – fold tape in half lengthwise, remove half of the release liner and wrap around the pipe allowing 1” extra for overlap sealing. Peel off the second half of the release liner and work the tape outward gradually forming a complete seal. VaporSeal™ Tape (option) - Tape completely around pipe overlapping the VaporBlock® Plus™ square to create a tight seal against the pipe. F) Complete the process by taping over the boot perimeter edge with VaporSeal™ Tape to create a monolithic membrane between the surface of the slab and gas/moisture sources below and at the slab perimeter. (Fig. 4 & 6) Preformed Pipe Boot Square Material Pipe Boot Fig. 3 SINGLE PENETRATION PIPE BOOT INSTALLATION Fig. 5 Fig. 6 1. Cut a square of VaporBlock® Plus™ barrier to extend at least 12” from the pipe in all directions. 2. Cut four to eight slices about 3/8” less than the diameter of the pipe. 5. Use Raven VaporBoot or VaporSeal™ Tape and overlap 1” at the seam. 4. Tape over the boot perimeter edge with VaporSeal™ Tape. 1. Cut out one of the preformed boot steps (1” to 4”). 2. Tape the underside boot perimeter with 2-sided Butyl Seal Tape. 3. Force the boot over pipe and press tape firmly in place. 4. Use VaporSeal™ Tape to secure boot to the pipe. 5. Tape around entire boot edge with VaporSeal™ Tape. VaporBoot Flexible Tapeor VaporSeal™ 4” TapeVaporSeal™ 4” Tape VaporBlock® Plus™Material 9DSRU6HDO´7DSH 5DYHQ%XW\O6HDO6LGHG7DSH 5DYHQ%XW\O6HDO6LGHG7DSH 9DSRU%RRW3OXV3UHIRUPHG%RRW 12”(minimum) 3. Force over pipe and tape the underside boot perimeter to existing barrier with 2-sided Butyl Seal Tape. Fig. 4 Page 2 of 4 2ULJLQDO¿JXUHGLDJUDPLVUHSULQWHGZLWKSHUPLVVLRQE\WKH3RUWODQG&HPHQW$VVRFLDWLRQ5HIHUHQFH.DQDUH+RZDUG0&RQFUHWH)ORRUVDQG0RLVWXUH(%3RUWODQG&HPHQW$VVRFLDWLRQ6NRNLH,OOLQRLVDQG1DWLRQDO5HDG\0L[HG&RQFUHWH$VVRFLDWLRQ6LOYHU6SULQJ0DU\ODQG86$SDJHVMethod 1 Method 2 VaporSeal™4” Tape VaporBoot PlusPerformed Boot Raven Butyl Seal 2-sided Tape Raven Butyl Seal 2-sided Tape 1.5. Sealing side-by-side multiple penetrations (option 1); A) Cut a patch large enough to overlap 12” in all directions (Fig. 7) of penetrations. B) Mark where to cut openings and cut four to eight slices about 3/8” less than the diameter of the penetration for each. C) Force patch material over penetration to achieve a tight fit and form a lip. D) Once patch is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in-between the two layers. (Fig. 8) E) After applying Raven Butyl Seal Tape between the patch and membrane, tape around each of the penetrations and the patch with VaporSeal™ 4” tape. (Fig. 9) For additional protection apply POUR-N-SEAL™ or an acceptable polyurethane elastomeric sealant around the penetrations. (Fig. 10) Fig. 7 Fig. 8 Fig. 9 Fig. 10 MULTIPLE PENETRATION PIPE BOOT INSTALLATION Fig. 6 Cut a patch large enough to overlap 12” in all directions and slide over penetrations (Make openings as tight as possible.) Once the overlay patch is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in-between the two layers. After applying Raven Butyl Seal Tapebetween the patch and membrane, tape around the perimeter of the penetration and the patch with VaporSeal™ 4” Tape. For additional protection apply POUR-N-SEAL™ or an acceptable polyurethane elastomeric sealant around the penetrations. VaporSeal™ 4” Tape VaporSeal™ 4” Tape Page 3 of 4 Option 1 Raven Butyl Seal 2-sided Tape 1.6. POUR-N-SEAL™ method of sealing side-by-side multiple penetrations (option 2); A) Install the vapor barrier as closely as possible to pipe penetrations to minimize the amount of POUR-N-SEAL™ necessary to seal around all penetrations. B) Once barrier is in place, remove soil or other particles with a dry cloth or a fine broom to allow for improved adhesion to the POUR-N-SEAL™ liquid. C) Create a dam around the penetration area approximately 2” away from the pipe or other vertical penetrations by removing the release liner from the back of a 1” weather stripping foam and adhere to the vapor barrier. Form a complete circle to contain the POUR-N-SEAL™ materials (Fig. 11). D) Once mixed, pour contents around the pipe penetrations. If needed, a brush or a flat wooden stick can be used to direct the sealant completely around penetrations creating a complete seal (Fig. 12-13). E) DO NOT leave excess POUR-N-SEAL™ in plastic container for longer than the time it takes to pour sealant. Fig. 12 Fig. 13 Fig. 11 Option 2 VAPORBLOCK® PLUS™ REPAIR INSTRUCTIONS 1.7. Proper installation requires all holes and openings are repaired prior to placing concrete. When patching small holes, simply cut a 12” long piece of 12” wide VaporSeal™ tape. Remove release liner and center over the opening. Apply pressure to create a seal (Fig. 14-15). 1.8. When installing VaporBlock® Plus™ around pipe penetrations, vertical columns, electrical ducts and other obstructions, you will find it necessary to cut it to the nearest outside edge. This cut can be easily sealed with 12” wide VaporSeal™ tape, by simply centering it over the cut, 6” on either side. Once the tape is placed correctly, apply pressure to assure a complete seal (Fig. 16). Reminder Note: All holes or penetrations through the membrane will need to be patched with 12” VaporSeal™ Tape. Fig. 14 Page 4 of 5 Fig. 15 2.1. When installing reinforcing steel and utilities, in addition to the placement of concrete, take precaution to protect VaporBlock® Plus™. Carelessness during installation can damage the most puncture–resistant membrane. Sheets of plywood cushioned with geotextile fabric temporarily placed on VaporBlock® Plus™ provide for additional protection in high traffic areas including concrete buggies. 2.2. Use only brick-type or chair-type reinforcing bar supports to protect VaporBlock® Plus™ from puncture. 2.3. Avoid driving stakes through VaporBlock® Plus™. If this cannot be avoided, each individual hole must be repaired per section 1.7. 2.4. To avoid penetrating VaporBlock® Plus™ when installing screed supports, utilize non-penetrating support, such as the Mako® Screed Support System (Fig. 17). Avoid driving stakes through VaporBlock® Plus™. If this cannot be avoided, each individual hole must be repaired per figures 14-15. 2.5. If a cushion or blotter layer is required in the design between VaporBlock® Plus™ and the slab, additional care should be given if sharp crushed rock is used. Washed rock will provide less chance of damage during placement. Care must be taken to protect blotter layer from precipitation before concrete is placed. VaporBlock® Plus™ Gas & Moisture Barrier can be identified on site as gold/white in color printed in black ink with following logo and classification listing (Fig. 18) Page 5 of 5 VaporBlock® Plus™ Gas & Moisture Barrier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ox 5107 Sioux Falls, SD 57117-5107Ph: +1 (605) 335-0174 • TF: +1 (800) 635-3456 efdsales@ravenind.comwww.ravenefd.com 020316 EFD 1127 VAPORBLOCK® PLUS™ PROTECTION Fig. 16 Fig. 18 Fig. 17 * Patent Pending © Raven 2016. All Rights Reserved. P1 OF 2 DRAGO® WRAPVAPOR INTRUSION BARRIER A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019 1. PRODUCT NAME DRAGO WRAP VAPOR INTRUSION BARRIER 2. MANUFACTURER c/o Stego® Industries, LLC* 216 Avenida Fabricante, Suite 101 San Clemente, CA 92672 Sales, Technical Assistance Ph: (877) 464-7834 Fx: (949) 257-4113 www.stegoindustries.com 3. PRODUCT DESCRIPTION TABLE 4.1: PHYSICAL PROPERTIES OF DRAGO WRAP VAPOR INTRUSION BARRIER PROPERTY TEST RESULTS Under Slab Vapor Retarders ASTM E1745 – Standard Specification for Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs ASTM E1745 Compliant Water Vapor Permeance ASTM F1249 – Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor 0.0069 perms Push-Through Puncture ASTM D4833 – Test Method for Index Puncture Resistance of Geotextiles, Geomembranes, and Related Products 183.9 Newtons Tensile Strength ASTM D882 – Test Method for Tensile Properties of Thin Plastic Sheeting 53.5 lbf/in Permeance After Conditioning ASTM E154 Section 8, F1249 – Permeance after wetting, drying, and soaking 0.0073 perms(ASTM E1745 ASTM E154 Section 11, F1249 – Permeance after heat conditioning 0.0070 permsSections 7.1.2 - 7.1.5) ASTM E154 Section 12, F1249 – Permeance after low temperature conditioning 0.0062 perms ASTM E154 Section 13, F1249 – Permeance after soil organism exposure 0.0081 perms Hydrocarbon Attenuation Factors Contact Stego Industries’ Technical Department Chlorinated Solvent Attenuation Factors Contact Stego Industries’ Technical Department Methane Transmission Rate ASTM D1434 – Test Method for Determining Gas Permeability Characteristics of 7.0 GTR** Plastic Film and Sheeting (mL(STP)/m2*day) Radon Diffusion Coefficient K124/02/95 9.8 x 10-14 m2/second Thickness 20 mil Roll Dimensions 14' x 105' or 1,470 ft2 Roll Weight 150 lb Note: perm unit = grains/(ft2*hr*in-Hg) ** GTR = Gas Transmission Rate USES: Drago Wrap is specifically engineered to attenuate volatile organic compounds (VOCs) and serve as a below-slab moisture vapor barrier. COMPOSITION: Drago Wrap is a multi-layered plastic extrusion that combines uniquely designed materials with only high grade, prime, virgin resins. ENVIRONMENTAL FACTORS: Drago Wrap can be used in systems for the control of various VOCs including hydrocarbons, chlorinated solvents, radon, methane, soil poisons, and sulfates. 4. TECHNICAL DATA Continued... Note – legal notice on page 2. DRAGO® WRAPVAPOR INTRUSION BARRIER A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019 DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM (877) 464-7834 | www.stegoindustries.com *Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved. 5. INSTALLATION UNDER SLAB: Unroll Drago Wrap over a tamped aggregate, sand, or earth base. Overlap all seams a minimum of 12 inches and tape using Drago® Tape. All penetrations must be sealed using a combination of Drago Wrap and Drago Accessories. Review Drago Wrap’s complete installation instructions prior to installation. 6. AVAILABILITY & COST Drago Wrap is available nationally through our network of building supply distributors. For current cost information, contact your local Drago distributor or Stego Industries’ Sales Representative. 7. WARRANTY Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology, LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal. 8. MAINTENANCE Store Drago Wrap in a dry and temperate area. 9. TECHNICAL SERVICES Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or by visiting the website. Contact Number: (877) 464-7834 Website: www.stegoindustries.com 10. FILING SYSTEMS • www.stegoindustries.com P2 OF 2 INSTALLATIONINSTRUCTIONS DRAGO® WRAP VAPOR INTRUSION BARRIER Engineered protection to create a healthy built environment. 2. Unroll Drago Wrap over the area where the slab is to be placed. Drago Wrap should completely cover the concrete placement area. All joints/seams should be overlapped a minimum of 12 inches and taped using Drago® Tape. (Fig. 1). If additional protection is needed, install DragoTack™ Tape in between the overlapped seam in combination with Drago Tape on top of the seam. NOTE: The area of adhesion should be free from dust, dirt, moisture, and frost to allow maximum adhesion of the pressure-sensitive tape. Ensure that all seams are taped with applied pressure to allow for maximum and continuous adhesion of the pressure-sensitive Drago Tape. Adhesives should be installed above 40°F. In temperatures below 40°F, take extra care to remove moisture/frost from the area of adhesion. 3. ASTM E1643 requires sealing the perimeter of the slab. Extend vapor retarder over footings and seal to foundation wall or grade beam at an elevation consistent with the top of the slab or terminate at impediments such as waterstops or dowels. Consult the structural and environmental engineer of record before proceeding. IMPORTANT: Please read these installation instructions completely, prior to beginning any Drago Wrap installation. The following installation instructions are generally based on ASTM E1643 – Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs. There are specific instructions in this document that go beyond what is stated in ASTM E1643 to take into account vapor intrusion mitigation. If project specifications call for compliance with ASTM E1643, then be sure to review the specific installation sections outlined in the standard along with the techniques referenced in these instructions. DRAGO TAPE Minimum 12” overlap VAPOR INTRUSION BARRIER Fig.1: UNDER-SLAB INSTALLATION DRAGO® WRAP VAPOR INTRUSION BARRIERINSTALLATION INSTRUCTIONS UNDER-SLAB INSTRUCTIONS: FOOTING DRAGOTACK TAPE VAPOR INTRUSION BARRIER Fig.2a: SEAL TO PERIMETER WALL Fig. 2b: SEAL TO FOOTING FOOTING DRAGOTACK TAPE VAPOR INTRUSION BARRIER SEAL TO PERIMETER WALL OR FOOTING WITH DRAGOTACK TAPE: (Fig. 2a and 2b) a. Make sure area of adhesion is free of dust, dirt, debris, moisture, and frost to allow maximum adhesion. b. Remove release liner on one side and stick to desired surface. c. When ready to apply Drago Wrap, remove the exposed release liner and press firmly against DragoTack Tape to secure. d. If a mechanical seal is needed, fasten a termination bar over the top of the Drago Wrap inline with the DragoTack Tape. NOTE: If sealing to the footing, the footing should receive a hand float finish to allow for maximum adhesion. 1. Drago Wrap has been engineered to be installed over a tamped aggregate, sand, or earth base. It is not typically necessary to have a cushion layer or sand base, as Drago Wrap is tough enough to withstand rugged construction environments. NOTE: Drago Wrap must be installed with the gray facing the subgrade. P2 of 4 Continued ... Note - legal notice on last page. DETAIL PATCH FOR PIPE PENETRATION SEALING: (Fig. 4b)a. Install Drago Wrap around pipe penetrations by slitting/cutting material as needed. Try to minimize void space created. b. If Drago Wrap is close to pipe and void space is minimized, proceed to step d. c. If void space exists, then i. Cut a detail patch to a size and shape that creates a 6-inch overlap on all edges around the void space at the base of the pipe. ii. Cut an “X” slightly smaller than the size of the pipe diameter in the center of the detail patch and slide tightly over pipe. iii. Tape the edges of the detail patch using Drago Tape. d. Seal around the base of the pipe using Drago Tape and/or Drago Sealant and Drago Sealant Form. i. If Drago Sealant is used to seal around pipe, make sure Drago Wrap is flush with the base of the penetration prior to pouring Drago Sealant. 5. IMPORTANT: ALL PENETRATIONS MUST BE SEALED. All pipe, ducting, rebar, and block outs should be sealed using Drago Wrap, Drago Tape, and/or Drago® Sealant and Drago® Sealant Form. (Fig. 4a). Drago accessories should be sealed directly to the penetrations. DRAGO TAPE DAMAGED AREA DRAGO TAPE DRAGO TAPE SMALL HOLE VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER Fig. 3: SEALING DAMAGED AREAS 4. In the event that Drago Wrap is damaged during or after installation, repairs must be made. Cut a piece of Drago Wrap to a size and shape that covers any damage by a minimum of 6 inches in all directions. Clean all adhesion areas of dust, dirt, moisture, and frost. Tape down all edges using Drago Tape. (Fig. 3) MINIMAL VOID SPACE CREATED DRAGO SEALANTDRAGO TAPE OR DRAGO SEALANT FORM VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER Fig. 4a: PIPE PENETRATION SEALING DRAGO TAPE LARGE VOID SPACE CREATED DRAGO SEALANTDRAGO TAPE OR DRAGO SEALANT FORM VAPOR INTRUSION BARRIERVAPOR INTRUSION BARRIERVAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER Fig. 4b: DETAIL PATCH FOR PIPE PENETRATION SEALING Continued ... Note - legal notice on last page. P3 of 4 DRAGO® WRAP VAPOR INTRUSION BARRIERINSTALLATION INSTRUCTIONS STEGO INDUSTRIES, LLC • SAN CLEMENTE, CA • 949-257-4100 • 877-464-7834 • www.stegoindustries.com *Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved. 11/2019 NOTE: While Drago Wrap installation instructions are based on ASTM E1643 - Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs, these instructions are meant to be used as a guide, and do not take into account specific job site situations. Consult local building codes and regulations along with the building owner or owner’s representative before proceeding. If you have any questions regarding the above-mentioned installation instructions or products, please call us at 877-464-7834 for technical assistance. While Stego Industries’ employees and representatives may provide technical assistance regarding the utility of a specific installation practice or Stego product, they are not authorized to make final design decisions. MULTIPLE PIPE PENETRATION SEALING: (Fig. 5) NOTE: Multiple pipe penetrations in close proximity may be most efficiently sealed using Drago Wrap, Drago Sealant, and Drago Sealant Form for ease of installation. a. Cut a hole in Drago Wrap such that the membrane fits over and around the base of the pipes as closely as possible, ensuring that it is flush with the base of the penetrations. b. Install Drago Sealant Form continuously around the entire perimeter of the group of penetrations and at least 1 inch beyond the terminating edge of Drago Wrap. c. Pour Drago Sealant inside of Drago Sealant Form to create a seal around the penetrations. d. If the void space between Drago Wrap and the penetrations is not minimized and/or the base course allows for too much drainage of sealant, a second coat of Drago Sealant may need to be poured after the first application has cured. IMPORTANT: AN INSTALLATION COMPLETED PER THESE INSTRUCTIONS SHOULD CREATE A MONOLITHIC MEMBRANE BETWEEN ALL INTERIOR INTRUSION PATHWAYS AND VAPOR SOURCES BELOW THE SLAB AS WELL AS AT THE SLAB PERIMETER. THE UNDERLYING SUBBASE SHOULD NOT BE VISIBLE IN ANY AREA WHERE CONCRETE WILL BE PLACED. IF REQUIRED BY THE DESIGN ENGINEER, ADDITIONAL INSTALLATION VALIDATION CAN BE DONE THROUGH SMOKE TESTING. Stego Industries* recommends the use of BEAST vapor barrier-safe concrete accessories, to help eliminate the use of non-permanent penetrations in Drago Wrap installations. MINIMAL VOID SPACE CREATED DRAGO SEALANT DRAGO SEALANT FORM DRAGO SEALANT FORM DRAGO SEALANT FORM DRAGO SEALANT VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER Fig. 5: MULTIPLE PIPE PENETRATION SEALING BEAST® CONCRETE ACCESSORIES - VAPOR BARRIER SAFE BEAST® SCREED BEAST® HOOK P3 of 4 BEAST® FORM STAKE Locate itand lock it down!Improve efficiency and maintain concrete floor levelness with the BEAST SCREED SYSTEM! The Stego barrier-safe forming system that prevents punctures in the vapor barrier. P1 OF 2 DRAGO® TAPE A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 11/27/2019 1. PRODUCT NAME DRAGO TAPE 2. MANUFACTURER c/o Stego® Industries, LLC* 216 Avenida Fabricante, Suite 101 San Clemente, CA 92672 Sales, Technical Assistance Ph: (877) 464-7834 Fx: (949) 257-4113 www.stegoindustries.com 3. PRODUCT DESCRIPTION USES: Drago Tape is a low-permeance tape designed for protective sealing, seaming, splicing, and patching applications where a highly conformable material is required. It has been engineered to bond specifically to Drago® Wrap Vapor Intrusion Barrier, making it ideal for sealing Drago Wrap seams and penetrations. COMPOSITION: Drago Tape is a multi-layered plastic extrusion that combines uniquely designed materials with only high grade, prime, virgin resins, and an acrylic, pressure-sensitive adhesive. SIZE: Drago Tape is 3.75" x 180'. Drago Tape ships 12 rolls in a case. 4. TECHNICAL DATA APPLICABLE STANDARDS: Pressure Sensitive Tape Council (PSTC) • PSTC 101 – International Standard for Peel Adhesion of Pressure Sensitive Tape • PSTC 107 – International Standard for Shear Adhesion of Pressure Sensitive Tape American Society for Testing & Materials (ASTM) • ASTM E1643 – Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor Retarders Used In Contact with Earth or Granular Fill under Concrete Slabs. TABLE 4.1: PHYSICAL PROPERTIES OF DRAGO TAPE PROPERTY TEST RESULTS Total Thickness 8 mil Permeance ASTM F1249 0.031 perms Tensile Strength MD ASTM D882 20.5 lbf/in Elongation (at break) MD ASTM D882 702% 180° Peel Adhesion PSTC 101 20-min dwell to Drago Wrap 50.1 oz/in PSTC 101 24-hour dwell to Drago Wrap 92.9 oz/in Shear Adhesion PSTC 107 24-hour dwell (1" x 1", 1kg/wt) to Drago Wrap 188 minutes Note: perm unit = grains/(ft2*hr*in-Hg) Continued... Note – legal notice on page 2. DRAGO® TAPE A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 11/27/2019 DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM (877) 464-7834 | www.stegoindustries.com *Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved. 5. INSTALLATION SEAMS: Overlap Drago Wrap a minimum 12 inches and seal with Drago Tape. Make sure the area of adhesion is free from dust, moisture and frost to allow maximum adhesion of the pressure-sensitive tape. PIPE PENETRATION SEALING: • Install Drago Wrap around pipe by slitting/cutting material. • If void space is minimal, seal around base of pipe with Drago Tape and/or Drago® Sealant and Drago® Sealant Form. DETAIL PATCH FOR PIPE PENETRATION SEALING: • Cut a piece of Drago Wrap that creates a 6 inch overlap around all edges of the void space. • Cut an “X” slightly smaller than the size of the pipe diameter in the center of the detail patch. • Slide detail patch over pipe, secure tightly. • Tape down all sides of detail patch with Drago Tape. • Seal around base of pipe with Drago Tape and/or Drago Sealant and Drago Sealant Form. Drago Tape should be installed above 40°F. In temperatures below 40°F, take extra care to remove moisture or frost from the area of adhesion. Ensure that the entirety of all seams are taped with applied pressure to allow for maximum and continuous adhesion of the pressure-sensitive Drago Tape. Review Drago Wrap’s complete installation instructions prior to installation. 6. AVAILABILITY & COST Drago Tape is available nationally through our network of building supply distributors. For current cost information, contact your local Drago distributor or Stego Industries’ Sales Representative. 7. WARRANTY Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology, LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal. 8. MAINTENANCE Store Drago Tape in a dry and temperate area. 9. TECHNICAL SERVICES Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or by visiting the website. Contact Number: (877) 464-7834 Website: www.stegoindustries.com 10. FILING SYSTEMS • www.stegoindustries.com P2 OF 2 P1 OF 2 DRAGOTACK™ TAPE A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019 1. PRODUCT NAME DRAGOTACK TAPE 2. MANUFACTURER c/o Stego® Industries, LLC* 216 Avenida Fabricante, Suite 101 San Clemente, CA 92672 Sales, Technical Assistance Ph: (877) 464-7834 Fx: (949) 257-4113 www.stegoindustries.com 3. PRODUCT DESCRIPTION TABLE 4.1: PHYSICAL PROPERTIES OF DRAGOTACK TAPE PROPERTY TEST RESULTS Dimensions 2" x 50' Total Thickness 30 mil Color Grey Material Synthetic rubber blend Permeance ASTM F1249 0.03 perms (30 mil) Adhesion to Steel ASTM D1000 12.5 lbs/in width Chemical Resistance No significant change to(TCE, PCE, Toluene, Xylene) ASTM D471 / D543 mass or volume. Installation Temperature 40°F / 110° In Service Temperature Range -20°F / +140°F VOC Content No VOCs, 100% solids Note: perm unit = grains/(ft2*hr*in-Hg) USES: DragoTack Tape is a solvent-resistant, double-sided adhesive strip used to bond and seal Drago® Wrap Vapor Intrusion Barrier to concrete, masonry, wood, metal, and other surfaces. DragoTack Tape is a flexible and moldable material to allow for a variety of applications and installations. COMPOSITION: DragoTack Tape is made from a solvent-resistant blend of synthetic rubber and resins. SIZE: DragoTack Tape is 2" x 50'. DragoTack Tape ships 12 rolls in a case. 4. TECHNICAL DATA Continued... Note – legal notice on page 2. DRAGOTACK™ TAPE A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019 DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM (877) 464-7834 | www.stegoindustries.com *Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved. 5. INSTALLATION TO WALLS AND FOOTINGS: Make sure the area of adhesion is free of dust, dirt, debris, moisture, and frost to allow maximum adhesion. Remove release liner on one side and stick to desired surface. When ready to apply Drago Wrap, remove the exposed release liner and press Drago Wrap firmly against DragoTack Tape to secure. Cut DragoTack Tape using a utility knife or scissors. Cut DragoTack Tape before removing the release liner for easier cutting. Install DragoTack Tape between 40°F and 110°F. Review Drago Wrap’s complete installation instructions prior to installation. 6. AVAILABILITY & COST DragoTack Tape is available nationally through our network of building supply distributors. For current cost information, contact your local Drago distributor or Stego Industries’ Sales Representative. 7. WARRANTY Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology, LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal. 8. MAINTENANCE Store DragoTack Tape in a dry and temperate area. 9. TECHNICAL SERVICES Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or by visiting the website. Contact Number: (877) 464-7834 Website: www.stegoindustries.com 10. FILING SYSTEMS • www.stegoindustries.com P2 OF 2 P1 OF 2 DRAGO® SEALANT FORM A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019 1. PRODUCT NAME DRAGO SEALANT FORM 2. MANUFACTURER c/o Stego® Industries, LLC* 216 Avenida Fabricante, Suite 101 San Clemente, CA 92672 Sales, Technical Assistance Ph: (877) 464-7834 Fx: (949) 257-4113 www.stegoindustries.com 3. PRODUCT DESCRIPTION USES: Drago Sealant Form is used in conjunction with Drago® Sealant to help create an efficient and effective seal around pipe penetrations in Drago® Wrap Vapor Intrusion Barrier. COMPOSITION: Drago Sealant Form is a low-density, cross-linked, closed-cell polyethylene foam with an acrylic, pressure-sensitive adhesive. SIZE: Drago Sealant Form is ½" x ½" x 24". Drago Sealant Form comes in 200 pieces per case (10 boxes of 20 pieces). 4. TECHNICAL DATA TABLE 4.1: PHYSICAL PROPERTIES OF DRAGO SEALANT FORM PROPERTY RESULTS Dimensions ½” x ½” x 24” Color White Weight 0.11 oz (3.1 grams) Continued... Note – legal notice on page 2. 5. INSTALLATION PENETRATIONS: Make sure the area of adhesion is free of dust, debris, moisture, and frost to allow maximum adhesion. When ready to apply to Drago Wrap, remove the release liner and press Drago Sealant Form firmly against Drago Wrap to secure. Install Drago Sealant Form continuously around the entire perimeter of the penetration(s) and at least 1 inch beyond the terminating edge of Drago Wrap. Install Drago Sealant Form between 40°F and 110°F. Pour Drago Sealant inside of Drago Sealant Form to create a seal around the penetration(s). Review Drago Wrap’s complete installation instructions prior to installation. 6. AVAILABILITY & COST Drago Sealant Form is available nationally through our network of building supply distributors. For current cost information, contact your local Drago distributor or Stego Industries’ Sales Representative. DRAGO® SEALANT FORM A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019 DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM (877) 464-7834 | www.stegoindustries.com *Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved. 7. WARRANTY Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology, LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal. 8. MAINTENANCE Store Drago Sealant Form in a dry and temperate area. 9. TECHNICAL SERVICES Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or by visiting the website. Contact Number: (877) 464-7834 Website: www.stegoindustries.com 10. FILING SYSTEMS • www.stegoindustries.com P2 OF 2 EVECO VENTILATOR APPROX.EXHAUST WEIGHT CAPACITY SIZE GALV.COPPER PACKED 4-MIWIND (inches)(gauge)(ounces)(pounds)(CFM) 4 26-28 16 3 40 5 26-28 16 3 45 6 26-28 16 3 50 7 26-28 16 4 60 8 26-28 16 4 75 9 26-28 16 5 100 10 26-28 16 5 120 12 26 16 6 170 14 24-26 16 9 280 15 24-26 16 10 325 16 24-26 16 10 375 IB 24-26 16-20 12 450 20 24-26 16-20 14 580 24 22-24 16-20 24 750 30 22-24 16-20 48 1100 36 22-24 20-24 90 1600 The Eveco Ventilator is a single cone vent, ideal for low cost ventilation. Thoughthe cost ofthis unit isslight, itprovides maximum ventilation in ail types of weather. SYPHON VENTILATOR The Empire Syphon Ventilator is a dependable stationary exhauster that functions efficiently in the slightest breeze,its design utilizes every wind current to create a pow erful suction through the stack,while the storm band circling the upper cone prevents rain from driving into the ventilator and adds to its exhaust capacity.Air outlet is more than dou ble that of the stack area. APPROX.EXHAUST WEIGHT CAPACITY SIZE GALV.COPPER PACKED 4-MIWIND (Inches)(gauge)(ounces)(pounds)(CFM) 4 26-28 16 7 65 5 26-28 16 7 70 6 26-28 16 8 75 7 26-28 16 9 85 8 26-28 16 10 105 9 26-28 16 11 140 10 26-28 16 12 190 12 26 16 15 275 14 24-26 16-20 21 380 15 24-26 16-20 25 450 16 24-26 16-20 30 500 18 24-26 16-20 35 620 20 22-24 20 45 740 24 22-24 20-24 70 1010 Empire Ventilation Equipment Co.,Inc. 35-39 Vernon Boulevard Long Island City, NY 11106-5195 TEL:(718)728-2143 FAX:(718)267-0143 EMPIRE Soil Gas Collector Mat PDS 05-140-1 Safety data for our custom-formed, high-impact polystyrene core is shown below. RECOMMENDED MAXIMUM OCCUPATIONAL EXPOSURE LIMITS PHYSICAL DATA FIRE HANDLING MEASURES ECOLOGICAL INFORMATION & DISPOSAL Component CAS No. Exposure Limits Hazard Data OSHA—Pel. Polystyrene 9003-55-6 None established No hazardous ingredients Properties Data Form Molded Sheet Color Black Odor None Boiling Point Not applicable Melting Point (°F) 270 Flash Point (°F) Not applicable Flammable Limits (°F) Not applicable VOC 0% Volatility <0.75% Moisture Specific gravity 1.02–1.08 Solubility in Water Not soluable Properties Extinguishing Media Fire Fighting Procedure Properties Ecological information Toxicological Disposal Data Water Spray (except when fire is of electrical origin), Foam, Dry powder, CO2 Self-contained breathingapparatus & suitable protective equipment Data Not associated with any known ecological problems No negative effects on humans Polystyrene recycles well. Can be disposed of as solid waste or burned in a suitable installation subject to local regulations. Effluents disposal should also be in accordance with local legislation. www.soilgasmat.com 719-444-0646 info@radonpds.com Product Materials & Safety Information Made inthe USA Perfect for Radon Control Systems in new home construction The economical alternative to aggregate systems—quick and easy installation STABILITY & REACTIVITY SPECIAL HANDLING INFORMATION Properties Data Stablitity Stable Incompatibility (Materials to avoid) Can react with strong oxidixers Hazardous Decomposition Carbon dioxide, carbon monoxide, various hydrocarbons Conditions to avoid None Description Information Handling & Storage Precaution Protect against flame & intense heat. Avoid breathing hot vapors. Eye Protection, Recommended Use OSHA approved safety glasses when handling Skin Wash with soap & water. Get medical attention if irritation develops or persists. Other Clothing & Equipment Gloves recommended due to sharp edges. Work Practices, Hygiene Use standard work practices for hygienic safety. Handling & Storage, Other Store in well-ventillated area. Avoid extreme heat & sources of ignition or open flame. Protective Measures, Maintenance Not applicable www.soilgasmat.com 719-444-0646 info@radonpds.com To the best of our knowledge, the information presented herein is accurate.However, it is not a warranty or a guarantee and is provided for reference only. Soil Gas Collector Mat PDS 05-140-1 The economical alternative to aggregate systems—quick and easy installation CUSPATED PLASTIC COVER FABRIC Material Physical Properties Property Test Method Value Specific Gravity (g/cc) ASTM D-792 1.04 Melt Flow @ 200°C/5000g (g/10 min) ASTM D-1238 2.5 Tensile Strength @ Yield (psi) ASTM D-638 2,900 Tensile Modulus (psi) ASTM D-638 275,000 Elongation @ Break (%) ASTM D-638 70 Flexural Modulus (psi) ASTM D-790 300,000 Impact Strength, Notched Izod @ 73°F (ft-lb/in) ASTM D-256 2.1 Heat Deflection Temperature @ 264 psi (°F) ASTM D-648 183 Vicat Softening Point (°F) ASTM D-1525 210 Property Test Method Value Grab Tensile (lbs) ASTM D4632 130 Elongation (%) ASTM D4632 > 50 Trapezoid Tear (lbs) ASTM D4533 60 Puncture (lbs) ASTM D4833 41 Mullen Burst (psi) ASTM D3786 140 AOS (U.S. sieve number) ASTM D4571 70 Permittivity (sec-1) ASTM D4491 0.8 Permeability (cm/sec) ASTM D4491 0.04 Water Flow (gal/min/sf) ASTM D4491 60 UV Stability (%) ASTM D4355 70 www.soilgasmat.com 719-444-0646 info@radonpds.com Product Data Sheet Made inthe USA Perfect for Radon Control Systems in new home construction The economical alternative to aggregate systems—quick and easy installation www.soilgasmat.com 719-444-0646 info@radonpds.com To the best of our knowledge, the information presented herein is accurate.However, it is not a warranty or a guarantee and is provided for reference only. BINDING METHOD Material Physical Properties CONTINUED Property Test Method Value External Binder Standard Sewn Type Stitching Standard Lock Stitch Type Thread Standard HB92 Nylon Tensile Strength (lbs) ASTM D4632 11 Thread Gage Standard 2 IOx4 denier Chemically Impervious Standard MI Natural Soil Gas Collector Mat PDS 05-140-1 Safety data for our non-woven, spun-bonded, polypropylene, gray geotextile fabric is shown below. PHYSICAL DATA FIRE HANDLING MEASURES ECOLOGICAL INFORMATION & DISPOSAL Properties Data Form Molded Sheet Color Black Odor None Boiling Point Not applicable Melting Point (°F) 270 Flash Point (°F) Not applicable Flammable Limits (°F) Not applicable Auto ignition temperature Not applicable Vapor Pressure (Pascal) Not volatile Density (g/cm3) @20 ºC 0.91 Solubility in Water Not soluable Thermal decomposition (ºF) Above 570 Properties Extinguishing Media Fire Fighting Procedure Properties Ecological information Toxicological Disposal Data Water Spray (except when fire is of electrical origin), Foam, Dry powder of CO2 Self-contained breathingapparatus & suitable protective equipment Data Not associated with any known ecological problems No negative effects on humans Polystyrene recycles well. Can be disposed of as solid waste or burned in a suitable installation subject to local regulations. Effluents disposal should also be in accordance with local legislation. www.soilgasmat.com 719-444-0646 info@radonpds.com Product Materials & Safety Information RECOMMENDED MAXIMUM OCCUPATIONAL EXPOSURE LIMITS Component CAS No. Exposure Limits Hazard Data OSHA—Pel. Polystyrene 9003-07-0 None established No hazardous ingredients Made inthe USA Perfect for Radon Control Systems in new home construction The economical alternative to aggregate systems—quick and easy installation STABILITY & REACTIVITY SPECIAL HANDLING INFORMATION Properties Data Stablitity Stable Incompatibility (Materials to avoid) Can react with strong oxidixers, base, or acid Hazardous Decomposition Carbon dioxide, carbon monoxide, low molecular weight oxygenated organic Conditions to avoid None Description Information Handling & Storage Precaution Avoid breathing hot vapors, oiled mists, and airborne fibers. Eye Protection, Recommended Use OSHA approved safety glasses when handling rolls Skin Wash with soap & water. Get medical attention if irritation develops or persists. Other Clothing & Equipment Not applicable Work Practices, Hygiene Use standard work practices for hygienic safety. Handling & Storage, Other Store rolls In accordance with good material handling practice Protective Measures, Maintenance Not applicable www.soilgasmat.com 719-444-0646 info@radonpds.com To the best of our knowledge, the information presented herein is accurate.However, it is not a warranty or a guarantee and is provided for reference only. Soil Gas Collector Mat PDS 05-140-1 Our non-woven, spun-bonded, polypropylene, gray geotextile fabric with the minimum values shown below. www.soilgasmat.com 719-444-0646 info@radonpds.com Product Materials— Technical Specifications & Performance Property Test Method Value Grab Tensile Strength (lbs) ASTM D 4632 130 Elongation (%) ASTM D 4632 >50 Trapezoid Tear (lbs) ASTM D 4533 60 Puncture (lbs) ASTM D 4833 41 Mullen Burst (psi) ASTM D 3786 140 AOS (U.S. sieve no.) ASTM D 4751 70 Permittivity (sec-1) ASTM D 4491 0.8 Permeability (cm/sec) ASTM D 4491 0.04 Vertical Water Flow Rate (gal/min/sf) ASTM D 4491 60 UV Stability (%) ASTM D 4355 70 Made inthe USA Soil Gas Collector Mat PDS 05-140-1 Our custom-formed, high-impact polystyrene core with the minimum values shown below. www.soilgasmat.com 719-444-0646 info@radonpds.com Product Materials— Technical Specifications & Performance Properties Test Method Value Specific Gravity ASTM D 792 1.04 Melt Flow (g/10min) ASTM D 1238 2.5 Tensile @ Yield (psi) ASTM D 638 2900 Tensile Modulus (psi) ASTM D 638 275,000 Elongation @ Break (%) ASTM D 638 70 Flexural Modulus (psi) ASTM D 790 300,000 Notched Izod @ 73ºF (ft-lb/in) ASTM D 256 2.1 HDT @ 264 psi (ºF) ASTM D 648 183 Vicat Softening Point (ºF) ASTM D 1525 210 Made in the USA SOIL GAS COLLECTOR MAT Installation Guide Radon Ready New Construction Time-saving, low-cost solution Easy Installation Reduce Liability! Used in all 50 states and Internationally Compliant under multiple codes: AARST-ANSI, ASTM, IRC Appendix F, EPA, HUD, and more! Simple, modern solution for soil gases: radon, vapor, and VOCs www.RadonMat.comPhotos, videos, & more @ MADE IN THE USA SOIL GAS COLLECTOR MAT FOR RADON READY NEW CONSTRUCTION According to the US EPA’s model stan-dards for radon control systems in new building construction, a means for col-lecting soil gas should be installed be-neath the slab. More and more mitigators and buildiers are using PDS’ soil gas collector mat because its installation does not entail any special coordination with plumb-ers or other site contractors. Low pro-file mat saves time as it removes the need for trenching. Just lay radon mat down around the inside perimeter of the foundation, secure it with spikes or landscaping staples, and pour the con-crete. SGC mat is superior to other mat sys-tems because of its thickness and it has a geotextile fabric cloth surround-ing the entire mat material. This fea-ture eliminates the need to lay a plas-tic barrier or sheet on top of the mat to protect the matrix. Using plastic sheeting can cause concrete cracking due to differential dewatering. The full fabric design greatly enhances both the installation as well as the quality of the concrete slab. When SGC mat is in-stalled below the slab, you’re providing an airspace that intercepts radon--and other soil gases and vapors--before it seeps into the building through the slab. SGC mat also works well as a soil gas collector beneath crawlspace bar-rier due to its low-profile. WHY & HOW IT WORKS The matting is a one inch high by twelve inch wide matrix enveloped in a geotextile filter fabric. 90% of the geomatrix is airspace, which means soil gas has room to move to the col-lection point. This creates incredible pressure field extension for post con-struction system activation. The mat can support concrete without com-pressing, yet is extremely lightweight and easy to handle. This system allows for radon to flow through the filter fabric and into the airspace. The airspace does not clog because the filter fabric retains the underlying gravel and soil. The natural airflow through the mat then channels the radon to the T riser to pipe connec-tion. From there, hazardous gas can be vented safely through the roof of the building. Another key element of a soil gas col-lection system is attaching the 4” riser to the mat, such that airflow is not restricted at this critical juncture. The soil gas T riser is unique as it has three ports, two redundant mat entries and one PVC connection to outside air. This unique fitting connects all three sides without special connections or fittings. common duct tape and caulk does the trick. 2 ADVANTAGES NO TRENCHINGNO BACKFILLNO VAPOR BARRIER* It’s called SOIL gas mat for a reason, Place directly on soil or substrate. Low-profile (1” thick) gas mat does not require trenching. SAFETY DATA & PRODUCT DATA SHEETS AVAILABLE @ www.RADONMAT.com 3 INSTALLATION INSTRUCTIONS 1. Begin work on the sub grade (soil or gravel) after the final preparation and before the concrete is poured. Start with T-Riser(s) and work out to ensure smooth mat placement. Position the T-Riser(s) in appropriate location(s) and nail down with a 12” steel nail (T Nail) through precut center hole. 2. Slide mat into flat openings on either end of T-riser with a portion of the fab- ric around the outside. Tape the fabric to the outside of the T-Riser with duct tape and staple mat to the ground with landscape staples to ensure soil contact remains during pour stage. 3. Mat is typically laid out in a rectangular loop in the largest area with branch- es or legs into smaller areas (FREE plan design at www.radonmat.com). There is no need to trench the mat. Roll out the SGC mat, smooth it onto the ground. To avoid wrinkles and buckling, work away from the risers, stapling to the ground as you go. The mat should be stapled every three to four feet, in addi- ton to corners, tee junctions & ends. 5. Corners are constructed by peeling back the filter fabric, cutting two ends of the matrix at 45 degree angles and butting (or overlapping: no more than 1/2”) the matrix together. Pull the filter fabric back and tape into place. Staple across the joint of the matrix and each leg of the corner. Use a minimum of four staples at each corner-- two across the joint and one on each leg. 6. The tees for branches and legs are constructed by slitting the fabric of the main loop at the location desired. Cut the fabric of the branch at the edges and expose two inces of the matrix. Cut off the exposed matrix and but the ma- trix of the branch (or overlap 1/2”)to the matrix of the main loop. Pull the flter fabric of the branch back over the main loop and tape into place. Staple across joint of the matrix with two staples and one each on the branch and main loop. Use a minimum of four staples at each tee, two across the joint and one on each loop and branch. 4 7. All openings in the fabric at joints, tee’s, and ends of branches should be taped to keep out concrete. 8. Stub up a few feet of 4” schedule 40 PVC* from all T risers before pour (or cover T riser with duct tape). Seal with polyurethene caulk and screws. This ensures no concrete aggregate enters the riser during slab pour. Be sure to label “CAUTION RADON REDUCTION SYSTEM” on all pipe. *(6” PVC may be substituted--for large multifamily projects. Simply cut T riser 4” insert away to reveal 6” insert). 9. When the building is ready for the vent pipe to be installed above the slab, fit to pre-stubbed PVC with PVC straight connect. If PVC was not preset, cut duct tape from riser and insert 4” PVC pipe now. Seal with polyurethene caulk and secure with screws. Always label “CAUTION RADON REDUCTION SYSTEM” to avoid confusion on site and for the building occupants. NOTE: The openings in the riser are laid out at 180 degrees to accomodate straight runs of mat. However, if the riser is to be placed in a corner, which is not uncommon, the front of the T can be cut and the SGC mat inserted into the new opening. The side of the T that is unused should be sealed with tape. This creates a 90 degree T which will allow corner placement for the riser. Mat should always enter the T riser from at least two directions and exhaust to pipe vertically. SAFETY DATA & PRODUCT DATA SHEETS AVAILABLE @ www.RADONMAT.com 5 MAKING CORNERS AND SPLICES The mat should be routed around the inside perimeter of the foundation. This will require occasional corner junctions. Furthermore, splices will have to be made to join two lengths of mat together. Corners and splices are very easy to make, and do not require any special fittings. Cut back the filter fabric to reveal the core material. In the case of a splice, merely overlap the core by at least one corrugation, replace the cloth, and tape it. Use two landscape staples to hold the splice in place. In the case of a corner, peel back geotextile fabric and slice the core of the two adjoining legs at 45 degree angles which mirror each other; overlap the edges by one corrugation; return grey geotextile fabric, tape and staple the corner together. 6 CONNECTING THE MAT TO THE T RISER A convenient T-riser with dual entry al- lows for either end of the loop of mat to be secured to the riser. Slide the mat into each end of the riser and tape the edge to prevent wet concrete from en- tering. Cap the riser to ensure no con- crete enters. T Riser caps can be pur- chased in lieu of duct tape. A prestub of PVC pipe can also serve the same pur- pose. See steps 8-9 above. ***Due to high product demand, several T riser de-signs have been tested and approved for sale. Your riser may look different than the one pictured here, however its function is the same. Ensure you stub up the PVC pipe and seal all openings with tape so that concrete does not enter during the pour. Se-cure mat to the ground with staples so riser does not float. 7 FLAT OUTLET SGC to PVC transition SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL SOIL GAS MAT SOIL GAS MAT PVC PIPE FOOTER/INTERMEDIATE WALL/ TRENCH Soil Gas Mat TOP VIEW GOING OVER FOOTER/WALL/TRENCH GRAVEL OR SOIL UNDER MAT Soil Gas MatSoil Gas Mat 4” sch. 40 PVC PIPE GRAVEL OR SOIL UNDER MAT TRENCHTRENCHTRENCH & FOOTER CROSSINGS IDEAL FOR LONG SPANS8 STEEL SLEEVE 24” (36”) x 1” x 12” SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL SOIL GAS MAT SOIL GAS MAT PVC PIPE FOOTER/INTERMEDIATE WALL/ TRENCH Soil Gas Mat TOP VIEW GOING OVER FOOTER/WALL/TRENCH GRAVEL OR SOIL UNDER MAT Soil Gas MatSoil Gas Mat GRAVEL OR SOIL UNDER MAT TRENCHTRENCHSTEEL SLEEVE available in 24” or 36” STEEL SLEEVE 1” thick IDEAL SHORT TRENCHES 9 POURING CONCRETE The filter fabric that comes sewn around the soil gas collector prevents the wet concrete from entering the mat and reducing its air collection capacity. The only precaution that needs to be taken is that the fabric is duct taped closed at seams of splices and corner to sufficiently keep the uncured concrete from en- tering. The mat also needs to be secured to the soil with landscape staples to prevent the concrete from lifting off the soil while it is being applied. Re-enforcing bars and wire can be laid on top of the mat. Note: the mat is strong enough (4,300 psf) to withstand concrete workers and their wheel barrows. 10 radon risk radon-induced lung cancer claims the lives of over 22,000 Americans each year FACT: Radon is found at dangerous levels in all 50 US states. The EPA action level is 4.0 pci/L or higher FACT: All US Homes have high radon potential, even those without basements FACT: Radon is the leading cause of lung cancer among “never smokers” FACT: Radon is a nobel gas and a natural part of the Uranium 238 breakdown chain FACT: Breathing 6.2 pci/L is the equivalent radiation dosage of a THREE chest x-rays each week for your lungs FACT: Radon is colorless, odorless, and invisible to the naked eye FACT: Radon testing is cheap and you can do it yourself! get the facts @ www.RadonReality.com For anything and everything radon, VISIT US @ www.radonPDS.com about us Professional Discount Supply | Radon Family-owned and operated since 1996. Situated on Colorado’s front range, PDS focuses on generating radon awareness through one-on-one technical support and trouble-shooting. Our products have been successfully installed in all 50 states and several foreign countries. We’re always just a phone call away. 719-444-0646 1902 Aerotech Drive, Ste 110 Colorado Springs, CO 80916 Distribution opportunities available, Please call for availability in your market