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HomeMy WebLinkAbout22059 - GSK - Approved Revised EMP 9.2.2020Environmental Management Plan GlaxoSmith Kline, LLC Brownfields Project No. 22059-18-032 3029 E. Cornwallis Road Durham, North Carolina H&H Job No. TKC-005 Revised September 2, 2020 hart 19 hickman SMARTER ENVIRONMENTAL SOLUTIONS #C-1269 Engineering #C-245 Geoloav 2923 South Tryon Street, Suite 100 3921 Sunset Ridge Rd, Suite 301 Charlotte, NC 28203 Raleigh, INC 27607 www.harthickman.com 704.586.0007 main 919.847.4241 main Completed EMP Template Form CONTENTS Figures Figure 1 NCBP Diagram for Temporary Containment of Impacted or Potentially Impacted Soil Figure 2 Site Location Map Figure 3 Site Map Figure 4 Abandoned Well Location Map Appendices Appendix A Phase I Redevelopment Grading Plan and Cut -Fill Analysis Appendix B RCRA Corrective Action Figures Appendix C Regulatory Correspondence hart hickman SMARTER ENVIRONMENTAL SOLUTIONS NORTH CAROLINA BROWNFIELDS PROGRAM ENVIRONMENTAL MANAGEMENT PLAN This form is to be used to prepare an Environmental Management Plan (EMP) for projects in the North Carolina Brownfields Program at the direction of a Brownfields project manager. The EMP is a typical requirement of a Brownfields Agreement (BFA). Its purpose is to clarify actions to be taken during the demolition and construction at Brownfields properties in an effort to avoid delays in the event of the discovery of new contamination sources or other environmental conditions. The EMP provides a means to document redevelopment plans and environmental data for each applicable environmental medium to inform regulatory -compliant decision -making at the site. As much detail as possible should be included in the EMP, including contingency planning for unknowns. Consult your project manager if you have questions. Prospective Developers and/or their consultants must complete and submit this form and all pertinent attachments, see checklist below, to their Brownfields project manager prior to any earthmoving or other development -related activities that have the potential to disturb soil at the Brownfields Property, including demolition. For the resultant EMP to be valid for use, it must be completed, reviewed by the program, signed by all parties working on the project, and approved by the Brownfields project manager. Failure to comply with the requirements of the EMP could jeopardize project eligibility, or in the event of a completed agreement, be cause for a reopener So that the EMP provides value in protecting brownfields eligibility and public health, the preparer shall ensure that the following steps have been completed prior to submitting the EMP for review. Any EMP prepared without completing these steps is premature. ® Site sampling and assessment that meets Brownfields' objectives is complete and has been reviewed and approved by the Brownfields Project Manager. ® Specific redevelopment plans, even if conceptual, have been developed for the project, submitted and reviewed by the Brownfields Project Manager. EMP Version 2, June 2018 Please submit, along with the completed EMP form, the following attachments, as relevant and applicable to the proposed redevelopment: ® A set of redevelopment plans, including architectural/engineering plans, if available; if not conceptual plans may suffice if updated when detailed plans are drafted. ® A figure overlaying redevelopment plans on a map of the extent of contamination for each media. ® Site grading plans that include a cut and fill analysis. ❑ A figure showing the proposed location and depth of impacted soil that would remain on site after construction grading. ❑ Any necessary permits for redevelopment (i.e. demolition, etc.). ❑ A detailed construction schedule that includes timing and phases of construction. ❑ Tabulated data summaries for each impacted media (i.e. soil, groundwater, soil gas, etc.) applicable to the proposed redevelopment. ® Figures with the sampling locations and contamination extents for each impacted media applicable to the proposed redevelopment. ❑ A full final grade sampling and analysis plan, if the redevelopment plan is final. ❑ If known, information about each proposed potential borrow soil source, such as aerial photos, historic site maps, historic Sanborn maps, a site history, necessary for brownfields approval. ❑ Information and, analytical data if required, for quarries, or other borrow sources, detailing the type of material proposed for importation to the Brownfields Property. ❑ A work plan for the sampling and analysis of soil to be brought onto the Brownfields Property. Refer to Issue Resolution 15 in Brownfields Program Guidelines. ❑ A map of the Brownfields Property showing the location of soils proposed for export and sampling data from those areas. ❑ If a Vapor Mitigation System is required by the Brownfields Program, the Vapor Intrusion Mitigation System (VIMS) plan will be signed and sealed by a NC Professional Engineer. The VIMS Plan may also be submitted under separate cover. EMP Version 2, June 2018 Date: 5/31/2019 GENERAL INFORMATION Revision Date (if applicable): 9/2/2020 Brownfields Assigned Project Name: GlaxoSmithKline, LLC Brownfields Project Number: 22059-18-032 Brownfields Property Address: 3029 East Cornwallis Road, Durham, Durham County, North Carolina (Figure 2) Brownfields Property Area (acres): 104.64 acres Is Brownfields Property Subject to RCRA Permit? ....................... ® Yes ❑ No If yes enter Permit No.: NCD052547635 Is Brownfields Property Subject to a Solid Waste Permit ............ ❑ Yes ® No If yes, enter Permit No.: Click or tap here to enter text. COMMUNICATIONS A copy of this EMP shall be distributed to all the parties below as well as any contractors or site workers that may be exposed to site vapors, soil, groundwater, and/or surface water. Additionally, a copy of the EMP shall be maintained at the Brownfields Property during redevelopment activities. NOTE, THE EMP DOES NOT TAKE THE PLACE OF A SITE -SPECIFIC HEALTH AND SAFETY PLAN. Prospective Developer (PD): TKC — 3029 Holdings, LLC Contact Person: James F. Harrell Phone Numbers: Office: (704) 644-4460 Email: iharrell@tkcinv.com Contractor for PD: Choate Construction Contact Person: Brent Long Phone Numbers: Office: (704) 602-7238 Email: BLong@choateco.com Environmental Consultant: Hart & Hickman, PC Contact Person: Justin Ballard Phone Numbers: Office: (919) 847-4241 Email: jballard@harthickman.com Brownfields Program Project Manager: Brad Atkinson Phone Numbers: Office: (919) 707-8748 Email: brad.atkinson@ncdenr.gov 3 EMP Version 2, June 2018 Mobile: (704) 905-3275 Mobile: Click or tap here to enter text. Mobile: (252) 548-9191 Mobile: _lick or tap here to enter text. Other DEQ Program Contacts (if applicable, i.e., UST Section, Inactive Hazardous Site Branch, Hazardous Waste, Solid Waste): Carl Utterback— Hazardous Waste (carl.utterback@ncdenr.gov; 919-707-8212) Rob McDaniel — Hazardous Waste (robert.mcdaniel@ncdenr.gov; 919-707-8215) Michael Rogers — Division of Water Resources (michael.rogers@ncdenr.gov; 919-707-3668) NOTIFICATIONS TO THE BROWNFIELDS PROGRAM Written advance Notification Times to Brownfields Project Manager: Check each box to accept minimum advance notice periods (in calendar days) for each type of onsitetask: On -site assessment or remedial activities: .................................................... 10 days Prior Construction or grading start: .......................................................................... 10 days Prior Discovery of stained soil, odors, USTs, buried drums or waste, landfill, or other signs of previously unknown contamination: ................................................................................ Within 48 hours Implementation of emergency actions (e.g. dewatering, flood or soil erosion control measures in area of contamination, ventilation of work zones): ................................... Within 48 hours Installation of mitigation systems: ................................................................ 10 days Prior ❑ Other notifications as required by local, state or federal agencies to implement redevelopment activities: (as applicable): ................................................................................. Within 30 days REDEVELOPMENT PLANS 1) Type of Redevelopment (check all that apply): ❑Residential ®Recreational ❑Institutional ❑Commercial ®Office ❑Retail ® Industrial ®Other specify: The Site will be improved with mixed -use built -to -suit development. Although specifics regarding exact uses are unknown at this time, it is expected that future uses will consist of office, laboratory research and development, and/or light research manufacturing. 2) Check the following activities that will be conducted prior to commencing earth -moving activities at the site: © Review of historic maps (Sanborn Maps, facility maps) ❑ Conducting geophysical surveys to evaluate the location of suspect UST, fuel lines, utility lines, etc. ® Interviews with employees/former employees/facility managers/neighbors EMP Version 2, June 2018 3) Summary of Redevelopment Plans (MANDATORY: attach detailed plans or conceptual plans, if detailed plans are not available. EMP review without such information would be premature): Provide brief summary of redevelopment plans, including demolition, removal of building slabs/pavement, grading plans and planned construction of new structures: Redevelopment plans for the Site include construction of up to approximately 680,000 square feet (sq ft) of building footprint and approximately 680,000 to 1,500,000 sq ft of vertical building square footage. Current redevelopment plans are for a phased approach with Phase I redevelopment (proposed four buildings) generally occurring in the northeastern, eastern, and southeastern portions of the Brownfields property, and Phase II redevelopment (proposed four buildings) occurring in the northwestern, western, and southwestern portions of the Brownfields property (Figure 3). Phase I redevelopment plans include demolition of existing parking areas, a fire suppression system pump house in the southwestern portion of the Site property, and an approximately 12,600 sq ft building (known as Warehouse B) in the north -central portion of the Site property (Figure 3). Cementitious material derived from demolition activities will be re -used on -Site as beneficial fill during grading activities. Development for both phases include plans to improve the Brownfields property with parking areas, access roads, and open spaces. Phase II Redevelopment plans will be provided in a future update to this EMP. Copies of the current Phase I redevelopment grading plan and cut/fill analysis are included in Appendix A. 4) Do plans include demolition of structure(s)?: ® Yes ❑ No ❑ Unknown ® If yes, please check here to confirm that demolition will be conducted in accordance with applicable legal requirements, including without limitation those related to lead and asbestos abatement that are administered by the Health Hazards Control Unit within the Division of Public Health of the North Carolina Department of Health and Human Services. If available, please provide a copy of your demolition permit. 5) Are sediment and erosion control measures required by federal, state, or local regulations? ® Yes ❑ No ❑ Unknown ® If yes, please check here to confirm that demolition will be conducted in accordance with applicable legal requirements. If soil disturbance is necessary to install sediment and erosion control measures, they may not begin until this EMP is approved. 6) Which category of risk -based screening level is used or is anticipated to be specified in the Brownfields Agreement? Note: If children frequent the property, residential screening levels shall be cited in the Brownfields Agreement for comparison purposes. ❑ Residential ® Non -Residential or Industrial/Commercial 7) Schedule for Redevelopment (attach construction schedule): a) Construction start date: 9/1/2019 b) Anticipated duration (specify activities during each phase): Redevelopment activities for Phase I are expected to occur for approximately two to three years. EMP Version 2, June 2018 c) Additional phases planned? ❑ Yes ❑ No If yes, specify the start date and/or activities if known: Start Date: To be determined Planned Activity: Current Phase II redevelopment activities will include construction of buildings, parking areas, access roads, and open spaces. Start Date: ELK UI Ldp LU enter a date. Planned Activity: "ick or tar, nere to enter text. Start Date: Click or tap to enter a date. Planned Activity: Click or tap here to enter text. d) Provide the planned date of occupancy for new buildings: To Be Determined CONTAMINATED MEDIA 1) Contaminated Media on the Brownfields Property Part 1. Soil: .............................................................. ® Yes ❑ No ❑ Suspected Part 2. Groundwater: ............................................ ® Yes ❑ No ❑ Suspected Part 3. Surface Water: .......................................... ❑ Yes ® No ❑ Suspected Part 4. Sediment: ................................................... ❑ Yes ® No ❑ Suspected Part 5. Soil Vapor: .................................................. ❑ Yes ❑ No © Suspected Part 6. Sub -Slab Soil Vapor: .................................. ❑ Yes ® No ❑ Suspected Part 7. Indoor Air: ................................................... ❑ Yes ® No ❑ Suspected 2) For the Area of Proposed Redevelopment on the Brownfields Property, attach tabulated data summaries for each impacted media and figure(s) with sample locations. PART 1. Soil — Please fill out the information below, using detailed site plans, if available, or estimate using known areas of contaminated soil and a conceptual redevelopment plan. Provide a figure overlaying new construction onto figure showing contaminated soil and groundwater locations. 1) Known or suspected contaminants in soil (list general groups of contaminants): Since the mid-1980s, Site investigations have been completed at the Brownfields property as part of corrective action activities under Resource Conservation and Recovery Act (RCRA) Permit NCD052547635. The RCRA Permit is currently held by GlaxoSmithKline (GSK). Corrective action 6 EMP Version 2, June 2018 activities have identified multiple Solid Waste Management Units (SWMUs) and Areas of Concern (AOC). In general, the SWMUs and AOCs represent areas where manufacturing processes, chemical storage, surface impounding, landfilling, stormwater management, and wastewater treatment were performed. Historical soil assessment activities conducted at the Brownfields property have identified the presence of polychlorinated biphenyls (PCBs) and volatile organic compounds (VOCs) in the SWMUs and AOCs. PCBs were also identified in areas outside of the SWMUs and AOCs as a potential result of termite and dust management practices performed historically in the northern portion of the Brownfields property. Specifically, PCBs detected during historical soil assessment activities have included Aroclors 1232, 1242, 1248, 1254, and 1260. According to the September 2015 Construction Completion Report — Soil Excavation for PCB Remediation and RCRA Corrective Action (Construction Completion Report) prepared by Golder Associates NC, Inc. (Golder), PCB assessment and remediation activities were managed in accordance with United States Environmental Protection (EPA) guidance under the Toxic Substances Control Act (TSCA). The Construction Completion Report documented soil excavation activities completed at 13 SWMUs and AOCs and areas outside of the SWMUs and AOCs where PCBs were detected at or above the TSCA High Occupancy Standard (HOS) of 1 milligram per kilogram (mg/kg). In general, excavations were performed at depths ranging from approximately 1 foot below ground surface (ft bgs) to 13 ft bgs. Results of post -excavation sampling indicated PCBs in soil had been remediated to below the HOS in 11 SWMUs and AOCs, as well as the previously identified areas outside of the SWMUs and AOCs. In addition, results of pre -and post -excavation sampling indicated PCBs in soil are below the July 2020 North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Industrial/Commercial Preliminary Soil Remediation Goals (PSRGs) from sampled areas within the Phase I Limits of Disturbance shown on Figure 3 and Figure 1 from the Construction Completion Report, which is included in Appendix B. PCBs in soil at SWMU-12 and SWMU-13 were remediated to >1 mg/kg and <_ 10 mg/kg, the TSCA High Occupancy Area cleanup level for areas with an appropriate soil cover. As such, these areas are covered with an 18-inch soil cover (SWMU-12) and a 24-inch soil cover (SWMU-13) that must be maintained as part of TSCA requirements under land use restrictions recorded with the property deed. Note that redevelopment activities are not proposed for the SWMU-12 and SWMU-13 areas at this time, however, should redevelopment activities be proposed for these areas in the future, DEQ Brownfields, DEQ Hazardous Waste, and EPA Region 4 will be notified in advance for DEQ and EPA approval. The locations of deed restricted areas SWMU-12 and SWMU-13 are shown on Figure 3. The deed restricted areas and areas remediated to below the TSCA HOS are shown on Figure 1 from the Construction Completion Report, which is included in Appendix B. Areas previously investigated and excavated for PCBs are shown on Figure 2 from the September 14, 2011 Soil Excavation and PCB Remediation Work Plan prepared by Golder, which is included in Appendix B. EMP Version 2, June 2018 In addition to investigation of PCBs, historical soil assessment activities conducted at the Brownfields property have also identified the presence of VOCs, specifically in SWMU-13, SWMU-15, and SWMU-16. According to the February 2004 Corrective Measures Study prepared by Golder, VOCs identified as compounds of concern (COCs) in these areas have included tetrachloroethylene (PCE), tetrachloroethane (PCA), trichloroethylene (TCE), 1,1,2- trichloroethane, cis-1,2-dichloroethene, 1,1-dichloroethene (1,1-DCE), 1,2-dichloroethane (1,2- DCA), carbon tetrachloride, chloroform, methylene chloride, vinyl chloride, bromoform, ethylene dibromide, benzene, toluene, xylene, ethylbenzene, and 2-butanone. In addition to PCB confirmation sampling activities described in the Construction Completion Report, post -excavation samples were also collected for VOCs from all excavations except SWMU-13. Remediation of VOCs in soil at SWMU-13 is currently being conducted by soil vapor extraction. Results of post -excavation sampling from the remaining SWMUs and AOCs indicated that VOCs in soil had been remediated to below the January 2014 DEQ IHSB Residential and Industrial/Commercial PSRGs. Additionally, an April 22, 2016 letter from the DEQ Hazardous Waste Section stated that VOCs in soil had been remediated to No Further Action (NFA) status in all SWMUs and ADCs with the exception of SWMU-13 (Appendix C). As noted above, redevelopment in the SWMU-13 area is not proposed at this time. In addition to remediation of PCBs and VOCs in soil described above, the Brownfields property has also undergone assessment and corrective action for two former 30,000-gallon fuel oil underground storage tanks (USTs). The USTs were installed to an approximate depth of 15 ft bgs and are located near SWMU-15. In 2003, the USTs were closed in -place by removing residual petroleum sludge followed by placement of foam and concrete in the USTs. The UST fill port structures, vent pipes, and metal pump pit were then removed and disposed of off -Site. In 2014, the former UST fuel oil return line was removed during RCRA corrective action activities. Post - UST closure soil sampling results did not indicate exceedances of DEQ UST Section Maximum Soil Contaminant Concentrations (MSCCs). As such, a Notice of No Further Action was granted for the petroleum release (Incident No. 26415) on March 5, 2015. The approximate location of the closed -in -place USTs is shown on Figure 3. 2) Depth of known or suspected contaminants (feet): As mentioned above, soil impacted with PCBs and VOCs above applicable regulatory screening criteria were excavated to depths of up to approximately 13 ft bgs during RCRA corrective action activities. Excavations completed for SWMU-15 and SWMU-16 were terminated at bedrock and additional impacts may potentially exist at the base of those excavations and/or in bedrock below the excavations. As such, zero valent iron (ZVI) was placed at the base of the SWMU-15 and SWMU-16 excavations at a thickness of approximately 1 foot to aid in the remediation of VOCs in underlying weathered bedrock and groundwater. The ZVI was mixed with sand followed by approximately two 2-foot lifts of 3 to 4-inch ballast stone. EMP Version 2, June 2018 PCB impacted soils are present in deed restricted areas SWMU-12 and SWMU-13 at concentrations >1 mg/kg and <_ 10 mg/kg. These areas are currently covered with soil covers that are inspected on an annual basis as part of TSCA requirements under land use restrictions recorded with the property deed. According to the Construction Completion Report, known PCB and VOC impacted soils have been remediated to below applicable regulatory screening criteria. In addition, results of pre -and post -excavation sampling indicated PCBs in soil are below the July 2020 DEQ IHSB Industrial/Commercial PSRGs from sampled areas within the Phase I Limits of Disturbance (Figure 3). 3) Area of soil disturbed by redevelopment (square feet): Based on cut -fill analysis (Appendix A), an approximate area of 2,011,755 sq ft is expected to be disturbed during redevelopment activities. 4) Depths of soil to be excavated (feet): Proposed grading activities are expected to include excavations of up to approximately 20 ft bgs in the north -central and east -central portions of the Brownfields property for installation of stormwater management infrastructure. In general, remaining excavations are proposed at depths of up to approximately 12 ft bgs. 5) Estimated volume of soil (cubic yards) to be excavated (attach grading plan): Up to approximately 270,000 cubic yards of soil are planned to be excavated and re -used on -Site as beneficial fill during grading activities. Areas of cut are shown on Figure 3. 6) Estimated volume of excavated soil (cubic yards) anticipated to be impacted by contaminants: Excavation of impacted soil is not anticipated. 7) Estimated volume of contaminated soil expected to be disposed of offsite, if applicable: Export of impacted soil is not anticipated. Part 1.A. MANAGING ONSITE SOIL If soil is anticipated to be excavated fromthe Brownfield Property, relocated on the Brownfields Property, or otherwise disturbed during site grading or other redevelopment activities, please provide a grading plan that clearly illustrates areas of cut and fill (approximate areas & volumes are acceptable, if only preliminarydata available). 1) HAZARDOUS WASTE DETERMINATION: a) Does the soil contain a LISTED WASTE as defined in the North Carolina Hazardous Waste Section under 40 CFR Part 261.31-261.35?....................................... ❑Yes ©No ❑ If yes, explain why below, including the level of knowledge regarding processes generating the waste (include pertinent analytical results as needed). EMP Version 2, June 2018 According to the 2015 Construction Completion Report, historical releases were not associated with a release of listed hazardous waste. ❑ If yes, do the soils exceed the "Contained -Out" levels in Attachment 1 of the North Carolina Contained -In Policy? ................................................. ❑ Yes ❑ No b) NOTE: IF SOIL MEETS THE DEFINITION OF A LISTED HAZARDOUS WASTE AND EXCEEDS THE CONTAINED -OUT LEVELS IN ATTACHMENT 1 TO THE NORTH CAROLINA CONTAINED -IN POLICYTHE SOIL MAY NOT BE RE -USED ON SITE AND MUST BE DISPOSED OF IN ACCORDANCE WITH DEQ HAZARDOUS WASTE SECTION RULES AND REGULATIONS. c) Does the soil contain a CHARACTERISTIC WASTE? .................................... ❑ Yes ® No ❑ If yes, mark reason(s) why below (and include pertinent analytical results). ❑ Ignitability Click or tap here to enter text. ❑ Corrosivity Click or tap here to enter text. ❑ Reactivity Click or tap here to enter text. ❑ Toxicity ick or tap here to enter text. ❑ TCLP results Click or tap here to enter text. ❑ Rule of 20 results (20 times total analytical results for an individual hazardous constituent on TCLP list cannot, by test method, exceed regulatory TCLP standard) Click or tap here to enter text. © If no, explain rationale: According to the Construction Completion Report, toxicity characteristic leaching procedure (TCLP) waste characterization samples were collected in March 2013 from borings advanced in SWMU-15 and SWMU-16. Based on the sampling results, soil excavated at the Brownfields property during RCRA corrective action activities did not exceed toxicity characteristic levels. d) NOTE: IF SOIL MEETS THE DEFINITION OF A CHARACTERISTIC HAZARDOUS WASTE, THE SOIL MAYNOT BE RE -USED ON SITE AND MUST BE DISPOSED OF IN ACCORDANCE WITH DEQ HAZARDOUS WASTE SECTION RULES AND REGULATIONS. 2) Screening criteria by which soil disposition decisions will be made (e.g., left in place, capped in place with low permeability barrier, removed to onsite location and capped, removed offsite): ❑ Preliminary Health -Based Residential SRGs ® Preliminary Health -Based Industrial/Commercial SRGs © Division of Waste Management Risk Calculator (For Brownfields Properties Only) 10 EMP Version 2, June 2018 ❑ Site -specific risk -based cleanup level. Please provide details of methods used for determination/explanation. Click or tap here to enter LL_ . Additional comments: jr tap he 3) If known impacted soil is proposed to be reused within the Brownfields Property Boundary, please check the measures that will be utilized to ensure safe placement and documentation of same. Please attach a proposed location diagram/site map. © Provide documentation of analytical report(s) to Brownfields Project Manager ® Provide documentation of final location, thickness and depth of relocated soil on site map to Brownfields Project Manager once known ❑ Geotextile to mark depth of fill material. Provide description of material: Click or tap here to enter text. © Manage soil under impervious cap ® or clean fill FXKI ® Describe cap or fill: Should impacted soil be encountered during redevelopment, the potentially impacted soil will be placed beneath impervious surfaces (asphalt pavement, sidewalks, access roads, buildings, etc.) or a minimum of 2 ft of clean fill. © Confer with NC BF Project Manager if Brownfield Plat must be revised (or re -recorded if actions are Post -Recordation). ® GPS the location and provide site map with final location. ❑ Other. Please provide a description of the measure: Click or tap here to enter text. 4) Please describe the following action(s) to be taken during and following excavation and management of site soils: Management of fugitive dust from site ® Yes, describe the method will include: Significant areas of contaminated soil are not expected to be encountered or disturbed during Site redevelopment activities based upon soil sampling data. The grading contractor will consider conditions such as wind speed, wind direction, and moisture content of soil during soil grading and stockpiling activities to minimize dust generation. In the unlikely event that contaminated soil is encountered during Site redevelopment that requires excavation, particular attention will be paid by contractors to implement dust control measures as needed based on Site and atmospheric conditions (i.e., by controlled water application, hydro -seeding, and/or mulch, stone, or plastic cover). As such, a water truck and/or appropriate water misting equipment will be available if needed at the Site during 11 EMP Version 2, June 2018 work activities that may produce dust. If operations generate sustained visible dust, dust monitoring equipment will be utilized. If dust levels exceed 3.0 milligrams per cubic meter (mg/m3), the American Conference of Governmental Industrial Hygienists level for Particulates (insoluble or poorly soluble) Not Otherwise Specified (PNOS), grading activities will cease and additional safety measures and/or water control methods may be implemented. Potentially impacted soil will be managed as described below. ❑ No, explain rationale: Click or tap here to enter text. Field Screening of site soil ® Yes, describe the field screening method, frequency of field screening, person conducting field screening: During soil disturbance, workers or contractors will observe soils for evidence of a distinct unnatural color, strong odor, sheen, or fill disposed materials of concerns (i.e., dried sludge, chemicals, tanks, drums, subsurface piping, etc.). In addition, workers or contractors will also observe excavations in the areas of SWMU-15 and SWMU-16 for evidence of ZVI and/or ballast stone. Should the above be noted during site work, the contractor will contact the project environmental professional to observe the suspect condition. If the project environmental professional confirms that the material may be impacted (using field observations, screening with a photo -ionization detector [PID], and historical assessment information [if applicable]), then the soils will be managed in accordance with this EMP and the Brownfields Program Project Manager will be contacted within two business days to advise that person of the condition. If the project environmental professional confirms the presence of ZVI and/or ballast stone in the SWMU-15 or SWMU-16 areas, the Brownfields Program Project Manager, the RCRA Permit holder (GSK), and DEQ Hazardous Waste will be contacted to discuss the condition. During soil disturbance, field screening using visual observations will be performed periodically by the project environmental professional in areas where there is an increased potential of encountering impacted media. These areas include SWMU-15 and SWMU-16, which are currently undergoing RCRA corrective action activities for the remediation of groundwater. SWMU-15 and SWMU-16 are generally in the north -central portion of the Brownfields property and are shown on Figure 3. ❑ No, explain rationale: Click or tap here to enter text. Soil Sample Collection ❑ Yes, describe the sampling method (e.g., in -situ grab, composite, stockpile, etc.): Click or tap here to enter text. ® No, explain rationale: Collection of additional soil samples is not anticipated based on results of previous Site assessment activities. If significant soil impact is encountered during grading and/or 12 EMP Version 2, June 2018 installation or removal of utilities, excavation will proceed only as far as needed to allow grading and/or construction of the utility to continue and/or only as far as needed to allow alternate corrective measures described below. Suspect significantly impacted soil excavated during grading and/or utility line installation or removal may be stockpiled and covered in a secure area to allow construction to progress. Suspect impacted soil will be underlain by and covered with minimum 10-mil plastic sheeting. At least one representative sample of the soil will be collected for analysis of VOCs, SVOCs, RCRA metals plus hexavalent chromium, and PCBs. If the results of analysis of the sample indicate that the soil could potentially exceed toxicity characteristic hazardous waste criteria, then the soil will also be analyzed by TCLP for those compounds that could exceed the toxicity characteristic hazardous waste criteria. Impacted soil will be handled in the manner described below based upon the laboratory analyses: If no organic compounds are detected in a sample (other than which are attributable to sampling or laboratory artifacts) and metals are below Residential PSRGs or are consistent with published background ranges for North Carolina soils, then the soil will be deemed suitable for use as on -Site fill or as off -Site fill. The proposed location(s) for off -Site placement of soil (other than a permitted facility) along with the receiving facility's written approval for acceptance of the soil will be provided to DEQ for approval prior to taking the soil off -site. ii. If detectable levels of compounds are found which do not exceed the DEQ IHSB Industrial/Commercial PSRGs (other than which are attributable to sampling or laboratory artifacts or which are consistent with published background ranges for metals in North Carolina soils) and the TCLP concentrations are below hazardous waste criteria, then the soil may be used on -Site as fill without conditions. iii. If detectable levels of compounds are found which exceed the DEQ IHSB Industrial/Commercial PSRGs (other than which are attributable to sampling or laboratory artifacts or which are consistent with published background ranges for metals in North Carolina soils) and the TCLP concentrations are below hazardous waste criteria, then the soil, with DEQ's written approval, may be used on -Site as fill below an impervious surface, or at least 2 ft of compacted clean soil. If the impacted soil with concentrations above Industrial/Commercial PSRGs is moved to an on -Site location, its location and depth will be documented, covered with a geotextile fabric so that its location can be identified if encountered in the future, and its location will be provided to DEQ. iv. Impacted soil may be transported to a permitted facility such as a landfill provided that the soil is accepted at the disposal facility. If soil is transported to a permitted facility, the permitted facility's written approval to dispose of soil from the Site will be included with the final EMP report. In the unlikely event that the sample data indicates concentrations above TCLP hazardous waste criteria, then the soil must be transported off -site to a permitted disposal facility that can accept or treat hazardous waste. *Please note that should the PD elect to transport export soil to a permitted facility or to a DEQ Brownfields pre -approved receiving facility, soil will be direct loaded onto trucks for transport off -Site. 13 EMP Version 2, June 2018 If soil samples are collected for analysis, please check the applicable chemical analytes: ® Volatile organic compounds (VOCs) by EPA Method 8260 ® Semi -volatile organic compounds (SVOCs) by EPA Method 8270 ® Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver): Specify Analytical Method Number(s): EPA Methods 6020/7471 ❑ Pesticides: Specify Analytical Method Number(s): f lirl, nr tnn here t0 pntor fov' © PCBs: Specify Analytical Method Number(s): EPA SW-846 Method 8082A. A sample will also be collected for possible analysis of PCB congeners by EPA Method 1668A based on the results of the 8082A analysis. ® Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Specify Analytical Method Number(s): Soil samples will be collected for hexavalent chromium and put on hold for potential analysis by EPA Method 7199. The laboratory will be directed to hold all hexavalent chromium analyses pending the results of the total chromium analyses If total chromium is detected in any of the soil samples above the current hexavalent chromium Industrial/Commercial PSRG, the sample exhibiting the highest total chromium concentration will be analyzed for hexavalent chromium. If hexavalent chromium is detected in that sample above the current hexavalent chromium Industrial/Commercial PSRG, the remaining soil samples may be analyzed for hexavalent chromium subject to approval by DEQ Brownfields. ® Check to confirm that stockpiling of known or suspected impacted soils will be conducted in accordance with Figure 1 of this EMP. Stockpile methodology should provide erosion control, prohibiting contact between surface water/precipitation and contaminated soil, and preventing contaminated runoff. Explain any variances or provide additional details as needed: Click or tap here to enter t, ® Final grade sampling of exposed native soil (i.e., soil that will not be under buildings or permanent hardscape). Select chemical analyses for final grade samples with check boxes below (Check all thatapply): ® Volatile organic compounds (VOCs) by EPA Method 8260 ® Semi -volatile organic compounds (SVOCs) by EPA Method 8270 ® Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver): Specify Analytical Method Number(s): EPA Methods 6020/7471 14 EMP Version 2, June 2018 ❑ Pesticides: Specify Analytical Method Number(s): ® PCBs: Specify Analytical Method Number(s): EPA SW-846 Method 8082A. A sample will also be collected for possible analysis of PCB congeners by EPA Method 1668A based on the results of the 8082A analysis. ® Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Soil samples will be collected for hexavalent chromium and put on hold for potential analysis by EPA Method 7199. The laboratory will be directed to hold all hexavalent chromium analyses pending the results of the total chromium analyses. If total chromium is detected in any of the soil samples above the current hexavalent chromium Industrial/Commercial PSRG, the sample exhibiting the highest total chromium concentration will be analyzed for hexavalent chromium. If hexavalent chromium is detected in that sample above the current hexavalent chromium Industrial/Commercial PSRG, the remaining soil samples may be analyzed for hexavalent chromium subject to approval by DEQ Brownfields. Please provide a scope of work for final grade sampling, including a diagram of soil sampling locations, number of samples to be collected, and brief sampling methodology. Samples should be collected from 0-2 ft below ground surface, with the exception of VOCs which should be taken from 1-2 ft below ground surface. Alternatively, a work plan for final grade sampling may be submitted under separate cover. Following completion of soil disturbance for any discrete future Site development (i.e., after grading and utility construction), an environmental professional will be contracted to assess the development area for areas that are not covered with a minimum of 2 ft of clean fill soil or topsoil, building foundations, sidewalks, asphalt or concrete parking areas, driveways or other impervious surfaces. If such areas exist, a Work Plan will be prepared for final grade sampling for DEQ review and approval. If no such areas exist, documentation will be provided to DEQ. ❑ If final grade sampling was NOT selected please explain rationale: Click or tap here to enter text Part 1.6. IMPORTED FILL SOIL NO SOIL MAY BE BROUGHT ONTO THE BROWNFIELDS PROPERTY WITHOUT PRIOR APPROVAL FROM THE BROWNFIELDS PROGRAM. According to the Brownfields IR 15, "Documenting imported soil (by sampling, analysis, and reporting in accordance with review and written approval in advance by the Brownfields Program), will safeguard the liability protections provided by the brownfields agreement and is in the best interest of the prospective developer/property owner." Requirements for importing fill: 15 EMP Version 2, June 2018 1) Will fill soil be imported to the site? ................................................ ❑ Yes ❑ No © Unknown 2) If yes, what is the estimated volume of fill soil to be imported? The need for off -Site import of fill soil is not anticipated at this time; however, should off -site import of fill soil be warranted, see No. 7 below for details outlining the proposed plan to demonstrate import soil meets acceptable standards to the Site. 3) If yes, what is the anticipated depth that fill soil will be placed at the property? (If a range of depths, please list the range.) UICK or tap nere to enter text. 4) Provide the source of fill, including: location, site history, nearby environmental concerns, etc. Attach aerial photos, maps, historic Sanborn maps and a borrow source site history: r Iirll nr ton horn to ontor tovt 5) PRIOR TO ITS PLACEMENT AT THE BROWNFIELDS PROPERTY, provide a plan to analyze fill soil to demonstrate that it meets acceptable standards applicable to the site and can be approved for use atthe Brownfields property. The need for off -Site import of topsoil is not anticipated at this time. Should off -Site import of topsoil be warranted, DEQ Brownfields will be notified of the volume of landscaping material needed and the proposed source of the material prior to placement in proposed landscaping areas. See No. 7 below for details outlining the proposed plan to demonstrate import soil meets acceptable standards applicable to the Brownfields property. 6) Please check the applicable chemical analytes for fill soil samples. (Check all that apply): ® Volatile organic compounds (VOCs) by EPA Method 8260 ® Semi -volatile organic compounds (SVOCs) by EPA Method 8270 ® Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver): Specify Analytical Method Number(s): 6020/7471 © Pesticides: Specify Analytical Method Number(s): Organochlorine pesticides (OCPs) by EPA Method 8081 ® PCBs: Specify Analytical Method Number(s): EPA SW-846 Method 8082A. A sample will also be collected for possible analysis of PCB congeners by EPA Method 1668A based on the results of the 8082A analysis. ® Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Hexavalent Chromium by EPA Method 7199 7) The scope of work for import fill sampling may be provided below or in a Work Plan submitted separately for DEQ review and approval. Attach specific location maps for in -situ 16 EMP Version 2, June 2018 borrow sites. If using a quarry, provide information on the type of material to be brought onto the Brownfields Property. The PD will follow the procedures outlined below to demonstrate import soil meets acceptable criteria for Site use. If the PD plans to import virgin fill material from a DEQ Brownfields pre -approved borrow source (such as the Wake Stone Corporation quarry located in Knightdale, North Carolina), no samples of the import material will be collected because adequate analytical data is available in the DEQ Brownfields database to demonstrate material from these facilities is suitable for use as structural fill at a Brownfields property. If fill soil (other than topsoil) is obtained from an off -Site property that is not a known permitted quarry or is recycled material from a DEQ Brownfields pre -approved borrow source, the borrow source will be sampled in general accordance with the most recent versions of the U.S. Environmental Protection Agency (EPA) Region IV Science and Ecosystem Support Division (SESD) Field Branches Quality System and Technical Procedures guidance. If the proposed borrow source is a permitted quarry, one soil sample will be collected for laboratory analysis. If the proposed borrow source has not been previously developed (i.e., virgin land), soil samples will be collected for laboratory analysis at a general rate of approximately one per 1,000 cubic yards. If the borrow source property has been previously developed, soil samples will be collected for laboratory analysis at a general rate of approximately one per S00 cubic yards. Specifically, composite soil samples for any of the above scenarios will be collected using a hand auger. Each composite sample will be comprised of soil from four grab sample locations (i.e., aliquots). The composite soil samples will be collected directly into dedicated laboratory -supplied sample containers and submitted to a North Carolina certified laboratory under standard chain of custody protocols for laboratory analysis SVOCs by EPA Method 8270 and RCRA metals plus hexavalent chromium by EPA Methods 6020/7471/7199, OCPs by EPA Method 8081, and PCBs by EPA Method 8082A. In addition to the composite soil samples described above, one representative grab soil sample will also be collected. The grab soil samples will be collected from undisturbed portions of soil directly into laboratory -supplied glassware and for laboratory analysis of VOCs by EPA Method 8260. The DEQ Brownfields project manager will be contacted should an alternate sampling frequency be sought for either type of borrow source property. Fill soil will be considered suitable for use at the Site if it does not contain compound concentrations above DEQ Industrial/Commercial PSRGs, DWM Risk Calculator risk thresholds, or typical metals concentrations which are consistent with published background ranges for metals in regional soils. DEQ approval of the analytical results will be obtained prior to transporting import soil to the Site. 17 EMP Version 2, June 2018 Part I.C. EXPORTED SOIL NO SOIL MAY LEAVE THE BROWNFIELDS PROPERTY WITHOUT APPROVAL FROM THE BROWNFIELDS PROGRAM. FAILURE TO OBTAIN APPROVAL MAY VIOLATE A BROWNFIELDS AGREEMENT CAUSING A REOPENER OR JEOPARDIZING ELIGIBILITY IN THE PROGRAM, ENDANGERING LIABILITY PROTECTIONS AND MAKING SAID ACTION POSSIBLY SUBJECT TO ENFORCEMENT. JUSTIFICATIONS PROVIDED BELOW MUST BE APPROVED BY THE PROGRAM IN WRITING PRIOR TO COMPLETING TRANSPORT ACTIVITIES. Please refer to Brownfields IR 15 for additional details. 1) If export from a Brownfields Property is anticipated, please provide details regarding the proposed export actions. Volume of exported soil, depths, location from which soil will be excavated on site, related sampling results, etc. Provide a site map with locations of export and sampling results included. Export soil is not anticipated at this time. However, should soil need to be exported from the Brownfields property during redevelopment, soil will be sampled in general accordance with the most recent versions of the EPA Region IV SESD Field Branches Quality System and Technical Procedures guidance. Samples will be collected from export soil at a rate of 1 sample per every approximately 1,000 cubic yards of export for laboratory analysis of VOCs by EPA Method 8260, SVOCs by EPA Method 8270, RCRA metals by EPA Methods 6020/7471, and PCBs by EPA Method 8082A. SVOCs, metals, and PCBs will be collected as composite samples using a decontaminated stainless -steel hand auger. Soil samples will also be collected for hexavalent chromium and put on hold for potential analysis by EPA Method 7199. The laboratory will be directed to hold all hexavalent chromium analyses pending the results of the total chromium analyses. If total chromium is detected in any of the soil samples above the current hexavalent chromium Industrial/Commercial PSRG, the sample exhibiting the highest total chromium concentration will be analyzed for hexavalent chromium. If hexavalent chromium is detected in that sample above the current hexavalent chromium Industrial/Commercial PSRG, the remaining soil samples may be analyzed for hexavalent chromium subject to approval by DEQ Brownfields. The composite samples will consist of three sample aliquots that are combined to form one sample for laboratory analysis. Each aliquot will be field screened for the presence of VOCs using a calibrated photoionization detector (PID). VOC samples will be collected as grab samples using a decontaminated stainless -steel hand auger from the general area of the aliquot which exhibits the highest indication of impact during field screening. The soil samples will be placed in dedicated laboratory -supplied sample containers, covered with ice, and shipped to a North Carolina -certified laboratory under standard chain of custody protocols. DEQ approval of the analytical results will be obtained prior to transporting export soil from the Site. Based on analytical results of soil samples collected from the export soil, the soil will be transported off -Site to a suitable location. The PD will notify DEQ Brownfields of the location 18 EMP Version 2, June 2018 receiving the export soil. If not a permitted facility, DEQ Brownfields approval and written approval from the receiving facility will be obtained prior to transporting the soil off -Site. 2) To what type of facility will the export Brownfields soil be sent? ® Subtitle D/Municipal Solid Waste Landfill (analytical program to be determined by landfill) ® Permitted but Unlined Landfill (i.e. LCID, C&D, etc.) Analytical program to be determined by the accepting Landfill; ® Landfarm or other treatment facility ® Use as fill at another suitable Brownfields Property — determination that a site is suitable will require, at a minimum, that similar concentrations of the same or similar contaminants already exist at both sites, use of impacted soil will not increase the potential for risk to human health and the environment at the receiving Brownfields property, and thata record of the acceptance of such soil from the property owner of the receiving site is provided to Brownfields. Please provide additional details below. ® Use as Beneficial Fill off -site at a non-Brownfields Property - Please provide documentation of approval from the property owner for receipt of fill material. This will also require approval by the DEQ Solid Waste Section. Additional information is provided in IR 15. Please provide additional details below. 3) Additional Details: (if transfer of soil to another property is requested above, please provide details related to the proposed plans). The environmental engineer will contact DEQ Brownfields to obtain DEQ Brownfields, DEQ Hazardous Waste, and DEQ Solid Waste approval prior to exporting soil to a non-Brownfields, non -permitted facility property. Part 1.D. MANAGEMENT OF UTILITY TRENCHES ❑ Install liner between native impacted soils and base of utility trench before filling with clean fill (Preferred) ® Last out, first in principle for impacted soils (if soil can safely be reused onsite and is not a hazardous waste), i.e., impacted soils are placed back at approximately the depths they were removed from such that impacted soil is not placed at a greater depth than the original depth from which it was excavated. ® Evaluate whether necessary to install barriers in conduits to prevent soil vapor transport, and/or degradation of conduit materials due to direct impact with contaminants? ❑ Ifyes, provide specifications on barrier materials: Click or tap here to enter text. ❑ If no, include rationale here: 19 EMP Version 2, June 2018 Other comments regarding managing impacted soil in utility trenches: According to the 2015 Construction Completion Report, known PCB and VOC impacted soils have been remediated to below applicable regulatory screening criteria. Although not anticipated, in the event contaminated soil and/or vapors are encountered in utility trenches during redevelopment activities, the trench will be evacuated and appropriate safety screening of the vapors will be performed to protect workers. If results indicate further action is warranted in response to vapors to protect workers, appropriate engineering controls (such as use of industrial fans) will be implemented. If results indicate further action may be warranted to prevent soil vapor transport, and/or degradation of conduit materials, the contractor will contact the project environmental engineer to evaluate the suspect condition. The contractor and workers will observe soil for potential impacts during utility installation activities. Evidence of potential significant impacted soil includes a distinct unnatural color, strong odor, or filled or previously disposed materials of concerns (i.e. chemicals, tanks, drums, utilities, etc.). Should the above be noted during utility work, the contractor will contact the project environmental engineer to observe the suspect condition. If the project environmental engineer confirms that the material may be impacted, then the procedures outlined in Managing On -Site Soil above will be implemented. In addition, the environmental professional or PD will contact the DEQ Brownfields project manager within two business days to advise that person of the condition. PART 2. GROUNDWATER — Please fill out the information below. 1) What is the depth to groundwater at the Brownfields Property? The depth to groundwater at the Brownfields property is highly variable. Based on information provided in Golder's August 30, 2019 Fifth Annual Assessment Report (Assessment Report), depth to groundwater in areas of proposed excavation (i.e., cut) ranges from approximately 10 ft bgs to 33 ft bgs in the central to north -central portions of the Brownfields property (near SWMU-15 and SWMU-16) to approximately 32 ft bgs in the northeastern portion of the Brownfields property (near SWMU-13). 2) Is groundwater known to be contaminated by ®onsite ❑offsite ❑both or ❑unknown sources? Describe source(s): Historical groundwater assessment activities conducted at the Brownfields property have identified the presence of chlorinated VOCs (cVOCs) at concentrations above the DEQ 2L Groundwater Quality Standards (2L Standards). Based on information provided in the Assessment Report, cVOCs detected in groundwater above 2L Standards include, but are not limited to, TCE and associated degradation compounds cis-1,2-dichloroethene and vinyl chloride. Additionally, non -chlorinated VOCs such as benzene have been detected at concentrations above the 2L Standard. As part of RCRA correction action activities, ongoing groundwater remediation is currently being performed in areas associated with SWMU-13, SWMU-15, and SWMU-16 and AOC W-1 and AOC GW-6. Groundwater remediation areas and groundwater analytical results 20 EMP Version 2, June 2018 (above 2L Standards) from the April 2019 sampling event are shown on Figure 2 from the Assessment Report, which is included in Appendix B. 3) What is the direction of groundwater flow at the Brownfields Property? Groundwater flow direction at the Brownfields property is highly variable but is generally expected to mimic topography and flow radially away from a southwest to northeast trending ridge that is located in the central portion of the Site. 4) Will groundwater likely be encountered during planned redevelopment activities? ❑Yes ®No If yes, describe these activities: Click or tap here to enter text. Regardless of the answer; in the event that contaminated groundwater is encountered during redevelopment activities (evenif no is checked above), list activities for contingent management of groundwater (e.g., dewateringof groundwater from excavations or foundations, containerizing, offsite disposal, discharge to sanitary sewer, NPDES permit, or sampling procedures). Although not anticipated at this time, appropriate worker safety measures will be undertaken if groundwater gathers in an open excavation within an area determined to be impacted during construction activities. The accumulated water will be allowed to evaporate/infiltrate to the extent time for dissipation does not disrupt the construction schedule. Should the time needed for natural dissipation of accumulated water be deemed inadequate, the water will be tested and disposed off -Site (if impacted), or tested and discharged to the storm sewer (if not impacted above DEQ surface water standards) in accordance with applicable municipal and State regulations for erosion control and construction stormwater control. If warranted, proposed laboratory analyses (i.e., PCBs, etc.) will be submitted to DEQ Brownfields and DEQ Hazardous Waste for approval prior to sample collection. 5) Are monitoring wells currently present on the Brownfields Property?.................❑XYes ❑No If yes, are any monitoring wells routinely monitored through DEQ or other agencies?.................................................................................................................. ❑X Yes ❑ No 6) Please check methods to be utilized in the management of known and previously unidentified wells. ® Abandonment of site monitoring wells in accordance with all applicable regulations. It is the Brownfields Program's intent to allow proper abandonment of well(s) as specified in the Brownfields Agreement, except if required for active monitoring through another section of DEQ or the EPA. ® Location of existing monitoring wells marked ® Existing monitoring wells protected from disturbance ® Newly identified monitoring wells will be marked and protected from further disturbance until notification to DEQ Brownfields can be made and approval for abandonment is given. 21 EMP Version 2, June 2018 7) Please provide additional details as needed: Potential well abandonment activities are currently being evaluated by the PD and GSK, the RCRA Permit holder. Updates on these discussions will be provided to DEQ Brownfields and DEQ Hazardous Waste on an as -needed basis. If warranted, well abandonment activities will be conducted in accordance with local and state regulations. Existing monitoring well locations are shown on Figure 3. Previously abandoned monitoring well locations are shown on Figure 4. Please note, disturbance of existing site monitoring wells without approval by DEQ is not permissible. If monitoring wells are damaged and/or destroyed, DEQ may require that the PD be responsible for replacement of the well. PART 3. SURFACE WATER -Please fill out the information below. 1) Is surface water present at the property? ® Yes ❑ No 2) Attach a map showing the location of surface water at the Brownfields Property. 3) Is surface water at the property known to be contaminated? ❑ Yes ® No 4) Will workers or the public be in contact with surface water during planned redevelopment activities? ❑ Yes ® No 5) In the event that contaminated surface water is encountered during redevelopment activities, or clean surface water enters open excavations, list activities for management of such events (e.g. flooding, contaminated surface water run-off, stormwater impacts): If surface water run-off gathers in an open excavation within an area determined to be impacted during construction activities, appropriate worker safety measures will be undertaken. The accumulated water will be allowed to evaporate/infiltrate to the extent time for dissipation does not disrupt the construction schedule. Should the time needed for natural dissipation of accumulated water be deemed inadequate, the water will be tested and disposed off -site (if impacted), or tested and discharged to the storm sewer (if not impacted above DEQ surface water standards) in accordance with applicable municipal and State regulations for erosion control and construction stormwater control. If warranted, proposed laboratory analyses (i.e., PCBs, etc.) will be submitted to DEQ Brownfields and DEQ Hazardous Waste for approval prior to sample collection. PART 4. SEDIMENT — Please fill out the information below. 1) Are sediment sources present on the property? ® Yes ❑ No 2) If yes, is sediment at the property known to be contaminated: ❑ Yes ® No 3) Will workers or the public be in contact with sediment during planned redevelopment activities? ❑ Yes ® No 22 EMP Version 2, June 2018 4) Attach a map showing location of known contaminated sediment at the property. 5) In the event that contaminated sediment is encountered during redevelopment activities, list activities for management of such events (stream bed disturbance): Not applicable. PART 5. SOIL VAPOR — Please fill out the information below. 1) Do concentrations of volatile organic compounds at the Brownfields property exceed the following vapor intrusion screening levels (current version) in the following media: IHSB Residential Screening Levels: Soil Vapor: ........... ❑ Yes ❑ No ® Unknown Groundwater:.....® Yes ❑ No ❑ Unknown IHSB Industrial/Commercial Screening Levels: Soil Vapor: ........... ❑ Yes ❑ No ® Unknown Groundwater:.....® Yes ❑ No ❑ Unknown 2) Attach a map showing the locations of soil vapor contaminants that exceed site screening levels. 3) If applicable, at what depth(s) is soil vapor known to be contaminated? Not applicable 4) Will workers encounter contaminated soil vapor during planned redevelopment activities? ❑ Yes ❑ No ® Unknown 5) In the event that contaminated soil vapor is encountered during redevelopment activities (trenches, manways, basements or other subsurface work,) list activities for management of such contact: In the unlikely event contaminated soil vapors are encountered during future redevelopment activities, the area will be evacuated and appropriate safety screening of the vapors will be performed. If results indicate further action is warranted, appropriate engineering controls (such as use of industrial fans) will be implemented. PART 6. SUB -SLAB SOIL VAPOR — Please fill out the information below if existing buildings or foundations will be retained in the redevelopment. 1) Are sub -slab soil vapor data available for the Brownfields Property? ❑ Yes © No ❑ Unknown 2) If data indicate that sub -slab soil vapor concentrations exceed screening levels, attach a map showing the location of these exceedances. 3) At what depth(s) is sub -slab soil vapor known to be contaminated? El 0-6 inches ❑Other, please 23 EMP Version 2, June 2018 describe: Click or tap here to enter text. 4) Will workers encounter contaminated sub -slab soil vapor during planned redevelopment activities? ❑ Yes ❑ No © Unknown 5) In the event that contaminated soil vapor is encountered during redevelopment activities, list activities for management of such contact In the unlikely event impacted soil vapors are encountered during future redevelopment activities, worker breathing zone will be monitored using a calibrated photoionization detector. If results indicate further action is warranted, appropriate engineering controls (such as use of industrial fans) will be implemented. PART 7. INDOOR AIR — Please fill out the information below. 1) Are indoor air data available for the Brownfields Property? ❑ Yes ® No ❑ Unknown 2) Attach a map showing the location(s) where indoor air contaminants exceed site screening levels. 3) If the structures where indoor air has been documented to exceed risk -based screening levels will not be demolished as part of redevelopment activities, will workers encounter contaminated indoor air during planned redevelopment activities? ❑ Yes ❑ No ❑ Unknown 4) In the event that contaminated indoor air is encountered during redevelopment activities, list activities for management of such contact: In the unlikely event there is evidence of potential indoor air issues (i.e. unusual odors) during future redevelopment activities, the area will be evacuated and appropriate safety screening of the indoor air will be performed. If warranted, safety screening procedures will include periodically screening indoor air for volatile organic vapors with a calibrated photoionization detector. If results indicate further action is warranted, appropriate engineering controls (such as use of industrial fans) will be implemented. VAPOR INTRUSION MITIGATION SYSTEM — Please fill out the information below. Is a vapor intrusion mitigation system (VIMS) proposed for this BrownfieldsProperty? ❑ Yes ❑ No © Unknown If yes, ❑ VIMS Plan Attached or ❑ VIMS Plan to be submitted separately If submitted separately provide date: ck or tap here to enter tr VIMS Plan shall be signed and sealed by a NC Professional Engineer 24 EMP Version 2, June 2018 If no, please provide a brief rationale as to why no vapor mitigation plan is warranted: The potential for structural vapor intrusion into proposed buildings will be evaluated during future assessment activities conducted under purview of DEQ Brownfields. CONTINGENCY PLAN — encountering unknown tanks, drums, or other waste materials In this section please provide actions that will be taken to identify or manage unknown potential new sources of contamination. During redevelopment activities, it is not uncommon that unknown tanks, drums, fuel lines, landfills, orother waste materials are encountered. Notification to DEQ Brownfields Project Manager, UST Section, Fire Department, and/or other officials, as necessary and appropriate, is required when new potential source(s) of contamination are discovered. These Notification Requirements were outlined on Page 1 of this EMP. Should potentially impacted materials be identified that are inconsistent with known site impacts, the DEQ Brownfields Project Manager will be notified and a sampling plan will be prepared based on the EMP requirements and site -specific factors. Samples will generally be collected to document the location of the potential impacts. Check the following chemical analysis that are to be conducted on newly identified releases: ® Volatile organic compounds (VOCs) by EPA Method 8260 ® Semi -volatile organic compounds (SVOCs) by EPA Method 8270 ® Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver) EPA Methods 6020/7471 ❑ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text ® PCBs: Specify Analytical Method Number(s): EPA SW-846 Method 8082A. A sample will also be collected for possible analysis of PCB congeners by EPA Method 1668A based on the results of the 8082A analysis. ® Other Constituents & Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.) Please note, if field observations indicate the need for additional analyses, they should be conducted, even if not listed here. Soil samples will be collected for hexavalent chromium and put on hold for potential analysis by EPA Method 7199. The laboratory will be directed to hold all hexavalent chromium analyses pending the results of the total chromium analyses. If total chromium is detected in any of the soil samples above the current hexavalent chromium Industrial/Commercial PSRG, the sample exhibiting the highest total chromium concentration will be analyzed for hexavalent chromium. If hexavalent chromium is detected in that sample above the current hexavalent chromium 25 EMP Version 2, June 2018 Industrial/Commercial PSRG, the remaining soil samples may be analyzed for hexavalent chromium subject to approval by DEQ Brownfields. Please provide details on the proposed methods of managing the following commonly encountered issues during redevelopment of Brownfields Properties. During construction activities, contractors may encounter unknown sub -surface environmental conditions (i.e. tanks, drums, utilities, or waste materials) that if encountered, will require proper management. Prior to beginning Site work, the environmental professional will attend a pre - construction kick-off meeting with the PD and the redevelopment contractors to discuss the DEQ approved EMP and various scenarios when it would be appropriate and necessary to notify the environmental professional of the discovery of unknown subsurface features or potentially impacted media at the Site. In the event that such conditions are encountered during site development activities, the environmental actions noted below will be used to direct environmental actions to be taken during these activities and sampling data for potentially impacted soil and the disposition of impacted soil will be provided to DEQ when the data becomes available. Underground Storage Tanks: As noted in the Contaminated Media section, two former 301000-gallon fuel oil USTs were closed in - place in 2003. The closed USTs are located near SWMU-15 and are shown on Figure 2. In the event a previously unidentified UST or impacts associated with a UST release are discovered at the Site during redevelopment activities, the UST and/or UST related impacts will be addressed through the Brownfields Program. If a previously unidentified UST is encountered, the UST will be removed and transported off -Site for disposal at a suitable facility. If the UST contains residual fluids, the fluids will be sampled for VOCs, SVOCs, RCRA metals plus hexavalent chromium, and PCBs, and transported off -Site for disposal at a suitable facility based on the laboratory analytical results prior to removing the UST from the ground. If a UST is encountered that cannot be removed or does not require removal for geotechnical or construction purposes, with DEQ prior approval it will be abandoned in -place and construction will proceed. Impacted soil in the vicinity of the UST will be managed in accordance with the Managing On -Site Soil section outlined above in the EMP. If a UST will be left in -place, DEQ Brownfields will be notified. Sub -Grade Feature/Pit: If a sub -grade feature or pit is encountered and does not require removal for geotechnical or construction purposes, it will be filled with soil or suitable fill and construction will proceed. Where appropriate, the bottom may be penetrated before back filling to prevent fluid accumulation. If the pit has waste in it, the waste may be set aside in a secure area and will be sampled for waste disposal purposes for PCBs, TCLP VOCs, TCLP SVOCs, and TCLP metals and disposed off -Site at a permitted facility or the waste will be managed in accordance with the Managing On -Site Soil 26 EMP Version 2, June 2018 section outlined above in the EMP, whichever is most applicable based on the type of waste present. If the pit must be removed and the observed waste characteristics indicate the concrete may potentially be contaminated to a significant degree, the concrete will be sampled and analyzed by methods specified by the disposal facility. Buried Waste Material: If excavation into buried wastes or significantly impacted soils occurs, the contractor is instructed to stop work in that location and notify the environmental consultant. The environmental professional will review the materials and collect samples if warranted. In this event, confirmation sampling will be conducted at representative locations in the base and the sidewalls of the excavation after the waste or significantly impacted soil is removed. The confirmation samples will be analyzed for VOCs, SVOCs, RCRA metals plus hexavalent chromium, and PCBs. Areas of suspected contaminated soil that remain at the Site after excavation is complete above the DEQ IHSB Industrial/Commercial PSRGs will be managed pursuant to this plan. Re -Use of Impacted Soils On -Site: Please refer to description outlined in the Managing On -Site Soil section of the EMP above. If unknown, impacted soil is identified on -site, management on -site can be considered after the project team provides the necessary information, outlined in Part I.A. Item 11, for Brownfields Project Manager approval prior to final placement on -site. If other potential contingency plans are pertinent, please provide other details or scenarios as needed below: Click or tap here to enter text. POST -REDEVELOPMENT REPORTING ® Check this box to acknowledge that a Redevelopment Summary Report will be required for the project. If the project duration is longer than one year, an annual update is required and will be due by January 31 of each year, or 30 days after each one-year anniversary of the effective date of this EMP (as agreed upon with the Project Manager). These reports will be required for as long as physical redevelopment of the Brownfields Property continues, except that the final Redevelopment Summary Report will be submitted within 90 days after completion of redevelopment. Based on the estimated construction schedule, the first Redevelopment Summary Report is anticipated to be submitted on To Be Determined The Redevelopment Summary Report shall include environment -related activities since the last report, with a summary and drawings, that describes: 1. actions taken on the Brownfields Property; 2. soil grading and cut and fill actions; 27 EMP Version 2, June 2018 3. methodology(ies) employed for field screening, sampling and laboratory analysis of environmental media; 4. stockpiling, containerizing, decontaminating, treating, handling, laboratory analysis and ultimate disposition of any soil, groundwater or other materials suspected or confirmed to be contaminated with regulated substances; and 5. removal of any contaminated soil, water or other contaminated materials (for example, concrete, demolition debris) from the Brownfields Property (copies of all legally required manifests shall be included). X❑ Check box to acknowledge consent to provide a NC licensed P.G. or P.E. sealed, Redevelopment Summary Report in compliance with the site's Brownfields Agreement. 28 EMP Version 2, June 2018 APPROVAL SIGNATURES Brownfields Project Number: 220S9-18-032 Brownfields Project Name: GlaxoSmithl(line, LLC ::�— 4t2��" 9/2/2020 Prospective Developer: TKC — 3029 Holdings, LLC Date: September 2, 2020 Printed Name/Title/Company: Mr. James. F. Harrell/Managing Member/The Keith Corporation 9/2/2020 ant: Hart & Hickman, PC Date Click or tap to enter a date. Printed Name/Title/Company: Mr. Justin Ballard, P.G./Project Manager/Hart & Hickman, PC Brownfields Project Manager:Brad Atkinson 29 EMP Version 2, June 2018 9/2/2020 Date Click or tap to enter a date. Figure 1 NCBP Diagram for Temporary. Containment of Impacted or Potentially Impacted Soil Cross -Section View Top Plastic Cover Sheeting: Linderliner: 1 layer, minimum of 16 (1 Layer, minimum: 10 mil thick) mil thick plastic Berm (Straw bales, Weight composted earth, etc.) of plastic cover used) Land Surface Contaminated Soils 1 Straw Bale Berm Map View ■ � � � Ll`ci�t ■� r ("ontaminatcd Soils Z ❑ Plastic _ Sheeting Note Adapted from NC DEQ LIST Section "Guidelines for Ex Situ Petroleum Contaminated Soil Remediation" dated December, 1, 2013 30 EMP Version 2, June 2018 . IdLr I I � + r I :k + ■ r fr .. - .. � JC�7'.e�i�l►�1�riG�i' �f ia��. APPROXIMATE N 0 2000 4000 SCALE IN FEET U.S.G.S. QUADRANGLE MAP DURHAM, NORTH CAROLINA 2019 QUADRANGLE 7.5 MINUTE SERIES (TOPOGRAPHIC) WETLAND WETLAND A II 1 GW-20S GW-15S GW-225# ' { G;-41 GW-41D GW BNP-2 EW-2 EW-3 II BIV BNP-4 •IW6 It' � EW-1 •BNP-1/IW-17 IW-18 •� IW-14 P-5 I(WW�-12D1 �2!j IW IW-11 BR-3 MW-23S IW-10D dh ..., c \,,�7-24S STORMWATER ME ';AR-5 STREAM WETLAND E I W-06D BUILDING 6 (100,125 SF) ` BUILDING 8 (118,000 SF) MW-491 GW-39S 4GW-4OS TER B LDING 7 ,150 SF) we FRFF�q y/Nc'4 . LEGEND BROWNFIELDS PROPERTY BOUNDARY PARCELBOUNDARY GROUNDWATER MONITORING WELL MONITORING WELL • PHASE II NZVI INJECTION WELL - 5L ■ NZVI INJECTION WELL - CLASS 5L FRACTURED BEDROCK SVE WELL ALSO USED AS NZVI INJECTION WELL ♦ EXTRACTION WELL INCLUDED IN MONITORING NETWORK RMWATER CONTROL ♦ EXISTING WELLS FOR COMPLIANCE kSURE "C" MONITORING ♦ EXTRACTION WELL LZIWETLANDS AREA - DEED RESTRICTED AREA / TREE COVERAGE AREA / AREA OF NC 2L EXCEEDANCE i AREA OF CUT BUILDING 4 / LIMITS OF DISTURBANCE i (100,000 SF) / — — — DEMARCATION LINE / BUILDING 3 — — — — — LOT LINE / (90,300 SF) i AMW-6107 Y / NOTES: i i 1. LOCATIONS OF SOLID WASTE MANAGEMENT UNITS i (SWMUs), MONITORING WELLS, REMEDIATION WELLS, AND NC 2L GROUNDWATER EXCEEDANCES ARE OBTAINED FROM JULY 30, 2019 FIFTH ANNUAL ASSESSMENT PREPARED BY GOLDER ASSOCIATES NC, NC.T BUILDING (50,250 SF)) 6 STORMWATER CONTROL "D" MW-B110 MEASURE 4� W-5 �OPO APPROXIMATE 0 250 500 ' GW 33S SCALE IN FEET yMW-11 T �� v �P SITE MAP W-33 IW-34 N I GW.61 IW-35 -GW-6 I- IFCT GLAXOSMITHKLINE, LLC 3029 E. CORNWALLIS ROAD DURHAM, DURHAM COUNTY, NORTH CAROLINA GW 8 3921 Sunset Ridge Road, Suite 301 hart h i c k m a n Raleigh, North Carolina 27607 . 919-847-4241(p) 919-847-4261(1} GW-7 SMARTER ENVIRONMENTAL SOLUTIONS License # C-1269 / #C-245 Geology 4,JDS-MW-4 DATE: 8-27-20 REVISION NO. 0 JOB NO. TKC-005 FIGURE NO. 3 WETLAND A STORMWATER ME STREAM WETLAND E WETLAND WETLAND FRFF�q A/c. . *(A3 (ABANDONED) ED (ABA DO U _JNED) W(gggNDONED) RFI-4-822* GW-8SB I OCATED) �(gggNDONED) �� RFI4-B20 �yy} (ABANDONED) �CRF-4-B21 NOT LOCATED) BUILDING 6 (100,125 SF) \ \ i \ BUILDING 5 / \ (115,000 SF) i SWMU-13 (DEED RESTRICTED AREA) \ j CENTRAL PARK GW-43S (ABANDONED` APPR IXO MATE LOCATION OF a (ABANDONED)�Mw-s / //TWO CLOSED -IN -PLACE LISTs / wn BUILDING 8 (118,000 SF) TER B BUILDING 2 (40,150 SF) BUILDING 7 (40,150 SF) we BUILDING 1 (50,250 SF) ABANDONED) NG 3 ) SF) LEGEND BROWNFIELDS PROPERTY BOUNDARY PARCELBOUNDARY 4 ABANDONED GROUNDWATER MONITORING WELL WETLANDS AREA DEED RESTRICTED AREA MTREE COVERAGE AREA AREA OF NC 2L EXCEEDANCE AREA OF CUT LIMITS OF DISTURBANCE — — — DEMARCATION LINE — — — — — LOT LINE NOTES: 1. LOCATIONS OF SOLID WASTE MANAGEMENT UNITS (SWMUs), MONITORING WELLS, REMEDIATION WELLS, AND NC 2L GROUNDWATER EXCEEDANCES ARE OBTAINED FROM JULY 30, 2019 FIFTH ANNUAL ASSESSMENT REPORT PREPARED BY GOLDER ASSOCIATES NC, INC. o STORMWATER CONTROL' MEASURE "D" P0� �O, APPROXIMATE 0 250 500 77 SCALE IN FEET ABANDONED WELL LOCATION MAP I- IFC.T GLAXOSMITHKLINE, LLC 3029 E. CORNWALLIS ROAD DURHAM, DURHAM COUNTY, NORTH CAROLINA 1121 Sunset Ridge Road, Suite 301 hart ^• h i e k m a n Raleigh, North Carolina 27607 . 919-847-4241(p) 919-847-4261(1} SMARTER ENVIRONMENTAL SOLUTIONS License # C-1269 / #C-245 Geology DATE: 8-27-20 REVISION NO. 0 JOB NO. 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N N N NJ N 1-- m +0 ■ / u ti ��1:•Ii IS •i••i;i 1♦•1�1 1♦111♦1.111♦k. 1♦Ij �• 1. 1• ► 1. 1• '1 1 1 wig �=R -J�J i �� �♦ � •�1�as� � • • ' ♦� �•1••♦A�♦�!1$ ►•1��,�1♦ 1♦♦♦� _ �11♦w1'� •�1♦♦1 .1♦.1•.1•.r.1. ►1•►•1•�•1.1.1.1 1WEA w p•;•1•,►••1 Sir do 0. y �s ��I♦�+♦11 cam♦. �/ i• ��1•�1+�111 11•1•��� �I 1�11�11�11•�;�1��Q . .♦1•11•11111•♦! �• I♦1��1p�1111♦11AVi ♦.♦•'��•r�� �w1 O1♦♦�►t� °♦v��i►• fir'•:•�i••• " - i•♦a•• .i'. , •1.1.1�r1 YI� ■ • ■ ° •MON 0111110 ME 1z O U V) z O U cr O LL W V) w J w O z z Q 0 Q z W a laeyolW 'uosa110'Wd Zb:LZ:b OZOZ/ZL/8'8Mp'T9VO-OOOLLHI)1\s;uDwnooa\uosallo\siasn\::) Project .f .f Fj- T.T T, I FT'�T�H � TO'T'Y I T T Genes _2 G W-3 is 8.12.2020 ISWMU 131 u i. �r �� eu v A e GW-20S Grad ing Lot 6/pond cut/fill 18,658cy Lot 6 waste at 3 16,320cy )t 6 waste at 4 69,274cy 0 'SWMU-121 ot 5/pond cut/fill 49,654cy _ot 5 waste at 4 13,133cy )t 4 cut/fill 17,725cy borrow from 5 13,133cy borrow from 6 39,274cy grow from Road 6,379cy J cut/fill 12cy from Road 19cy from Lot 6 Mell�, AGTEK 16,320cy Appendix B RCRA Corrective Action Figures • Figure 1, Construction Completion Report —Soil Excavation for PCB Remediation and RCRA Corrective Action, Golder Associates NC, Inc., September 2015 • Figure 2, Soil Excavation and PCB Remediation Work Plan, Golder Associates NC, Inc., September 2014 • Figure 2, Fifth Annual Assessment Report, Golder Associates NC, Inc., August 2019 10 hart hickman SMARTER EN VI RON M E NTAI SOLUMNS N AGC Stormwater Channel Area WS-9 (SWMU-1 5) (Area Behind Former Hazardous Waste Storage Area) - Drain Line Excavation (Area West of WS-9) i R Area WS-1 o ;. e PL'} Pole I '- (Light o .�; r (Including WS-1 o Extension) I dNL M" �r Area WS 1-2 i (ANP-P-B64D)i See Note 3 Area WS 6-2 Warehouse B (Sinkhole) � (See Note 1) � Area WS-6 (AOC North Parking Lot) Temporary WS-8 Stockpile Area (MSW Stockpile) i el Gated TSCA Stockpile (So r moved from SWMU-13) r Water Main Vault (Punched In and Backfilled) Temporary Drain Line Stockpile Area wtiwr � s • (MSW Stockpile) a ` Area WS-8 (GW-41 S Location) w Water Line Repairs Area WS-11 Line , (AOC Fermentation Building) UST Area Excavation Fermentation Building J - (Soil Boring SB 25) t*4k,+ ' f *A*? s i1aI r I Pump House, (See Note 1) y Area WS (SWM 5) Mechanical Room A (Former North Building Drain Line Excavations) (Corridor 150011444) f Mechanical oom B (Former North Building D in Line Excavations) (Corridor 1 4011409 r4t I 1 i �._.._.._ i Area WS-1 (Light Pole C) Area WS-2 /-(Light Pole B) 1 X W -12 X ed Restr' ion Implemented) igh Occup y Standard with Soil Cover) x SWMU-13 x-` (Deed Restriction Implemented) (TSCA High Occupancy Standard with Soil Cover) emporary TSCA Storage Area (Soils removed from SWMU-13) Area WS-12 (ANP-P-B93-D) (Met 1 mg/kg TSCA High Occupancy Standard; ...._.._.._.._.._.._.._....................................... ..... EPA Approved) i Gas o ine Storage Tank Vault' TSCA Stockpile Area (Pun hed In and Backfilled) I >� 1 1 ! Aria WS-3 Nt Pole A) I SWMU-4 Area WS-5 _ (Painting Project) Initial TSCA Stockpile Material contained in Roll -Offs) .._.._.._.._.._.._.._. i Fd li GlaxoSmithKline CONTRACTOR FIRM ID G.1der Associates Golder Associates NC, Inc. 5B Oak Branch Drive Greensboro, NC 27407 (336) 852-4903 Firm License No. C-2862 CONTRACTOR PROJECT No.: 073-96115.001 Designed By: BS❑ Drawn By: BS❑ Checked By: RPL Project Manager: Brian Fichlin, P.E. GSK PROJECT INFORMATION GSK Project No.: RTP 10-0614 Project Name: PCB Remediation GSK Project Mgr.: Tom Hilliard, RE EHS Contact: Lindsey Walata, P.G. 09/11 /2015 CONSTRUCTION COMPLETION REPORT SOIL EXCAVATION SWMU-5 (Sanitar astewater Treatment Basin) (Removed Sedimen Cleaned, and Punched In/Backfilled) Area WS-4 Drain Line MSW Stockpil (North Parking Lot Stairs) .� (MSW Soil Staging Area J Temporary Drain Line MSW Stockpile Area I I ......... ......................... - - -.._........ ....................... - ............................. J19 R Exterior Drain Lines •(Former North Buildin Drain Line Excavations) l • (Corridor 1500/1400) Interior Lines (Former North Building Drain Line Excavations) (Corridor 150011400) qr 1 Mechanical Room C (Former North Building Drain Line Excavations' (Corridor 1500/ 1400) Q 50 100 NOTES 1.) Aerial photograph from 2011. All structures with the exception of Warehouse B and the Pump House have been removed. - REFERENCES 1.) Coordinate System: NAD 1983 StatePlane North Carolina FIPS 3200 Feet Projection: Lambert Conformal Conic 2-) Infrastructure obtained from existing GSK Drawings and are the same as those presented in the PCB Work Plan. 3.) Excavation extents shown are based on survey data provided by Talyor, Wiseman, an Taylor In some areas complete survey data was not available. In this case the excavation extents shown are based on the available TWT survey data and the excavation field sketches (that included field measurements). Field notes indicate that WS 6-2 does not connect to WS 1-2. 4.) Service Layer Credits: Source: Esri, DigitalGlobe, GeoEye, i-cubed, USDA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community CRITICAL DRAWING APPROVALS t DEPARTMENT APPROVAL DATE QA Engineering Validation 140 LEGEND Areas Excavated and Remediated to <1 mg/kg (High Occupancy Standard for total PCBs) GSK Property Line (Approximate) XX—X— ��� �x-x-x Fenced Area at SWMU-13 , , / / Soil Cover Areas (with concentrations >1 mg/kg Feet �`�'-' but < 14 mg/kg of total PCBs) 0 FINAL TO EPA 09111 /15 No. REVISION Date sidg operation' IPmiecWgr' GIS: BS❑ Site: GSK S. CAMPUS, N. COMPLEX Scale: 1" = 50' (E-SIZE) Title: SUMMARY OF NORTH SITE PCB REMEDIATION AND RC RA CORRECTIVE ACTION SOIL EXCAVATION ACTIVITIES Drawing Number: Rev: FIGURE 1 Q SITE BOUNDARY O I IP-BULL LNG I AOCST AOC OF O/? PARK G MWgTFR � i c if is W A REPAIRS AOC-W-1 LIGHT POLE FIRE _.. gpCFF PL-1 V RMFHT FORMER gr"OH FERMENTATION eUQOIHG BUILDING L: FIRE LINE SES MENT / LIGHT POLE ASSESSMENT J� / NORTH COMPLEX ROADWAY REPAVING TEMPORARY ROAD ASSESSMENT r FIRE LINE ASSESSMENT OG/ Q SWMU-13 APPROXIMATE LOCATION OF FORMER TRENCHES I APPROXIMATE LIMITS OF / WASTE WATER TREATMENT ACTIVITIES -i Li �� \\ SWMU-4 7 LOCATION OF HISTORICAL AND EXISTING STRUCTURES I� TENNIS i OURTS PAINTING PRO T 5 T IRWEL - L IN TALLA UTILITY PROJECT CONDUITI i ROOF DRAIN ASSESSMENT �,�e NT O SWI a LEGEND ❑ AREA(S) WHERE PCB CONCENTRATIONS POTENTIALLY EXCEED 1 RPM ® INVESTIGATED AREA(S) WHERE PCB CONCENTRATIONS ARE NON —DETECT / ■ INVESTIGATED AREA(S) WHERE PCB CONCENTRATIONS ARE BELOW 1 PPM / ❑ AREAS PREVIOUSLY EXCAVATED APPROXIMATE LIMITS OF EXISTING BUILDING(S) / APPROXIMATE LOCATION OF HISTORICAL STORMWATER SWALE - — — — — — - / NOTE 1.) THE LOCATIONS AND DIMENSIONS OF AREAS OF INVESTIGATION AND/OR EXCAVATION ARE APPROXIMATE. 2.) BASED ON HISTORICAL AREAS OF DISTURBANCE. / REFERENCES / 1.) ALL BASE CADD FILES USED DURING DRAWING PROTOTYPE CONSTRUCTION WERE TAKEN FROM COMPACT DISK SUPPLIED BY GSK. 2.) COORDINATE SYSTEM SHOWN IN NORTH CAROLINA STATE PLANE NAD27. / 100 0 100 200 SCALE FEET Lt l4b, -.axoSmithl(in CONTRACTOR FIRM ID (PA=kries GREENSBORO, NO CONTRACTOR PRO' No: 073-96115 Designed By: JAD Drawn By: RG Checked By: BJE Project Manager: BRIAN EICHUN, P.E. GSK PROJECT INFORMATION GSK PROJECT NO: RE10614 PROJECT NAME: RCRA CORRECTIVE MEASURES GSK PROJECT MGR: TOM HILLIARD, P.E. ENS CONTACT: UNDSEY WALATA, P.G. PCB WORK PLAN CRITICAL DRAWING APPROVALS DEPARTMENT APPROVAL DATE OA Engineering Validation No Revision Date mes aarasea./ Roha1 CAD: RG Site: GSK S. CAMPUS, N. COMPLEX Scale: AS SHOWN Title: SUMMARY OF FACILITY WIDE PCB INVESTIGATION AND REMEDIATION FIGURE: 2 Drawing Number: TBD Rev: 0 LEGEND $GW-44S GRCLL—EN MONITORING WELL +GW-38S MONITORING WELL (NOTE 5) GI2XOSmIthKllne +MW-9 EXISTING WELLS FOR COMPUANCE MONITORING 1>4-1Re=; Vr1='!=E=aLt7x w na m — "l• "1• Dritl= :'=rCCi` xt �' •: :ids / r BR3 NJ�ECTUONDWELDROCR SVE WELL PLSO USED AS NI T '•• nyKy�t LfJI D I IW-03 PHASE II NNI INJECTION WELL -CUSS 5L G O L D E R YT"---=-rrr "I- T s L; I IW-31 NNI INJECTION WELL -CUSS 51 ] T A EW-1 EXTRACTION WELL P \ �A °� I ♦ Ew-a0 E%TRACTION WELL FOR COMPLIANCE MONITORING —11 �— lw :� ':F x; 1 • :Rjl i FOR INJECTION WELLS "D" DENOTE DEEP WELLS OTHER INJECTION WELLS ARE gnm R' 9L 961 'N• -¢ N THE SHALLOW ZONE; FOR MONITORING WELLS "S" DENOTE SHALLOW AND "I a.n K 1N11��•) INTERMEDNTE WELLS OTHER MONITORING WELLS ARE IN THE DEEP ZONE. mrm W' %x 1.�1.�iY__.•_ ICI :cl •: ! - PROPERtt BOUNDARY _ r i �•-� ADJACENT PROPERTY BOUNDARY CS% CO FxIHKT x0'. 119U5 zi fur �y r MNA MONITORING LOCATIONS RCR4 CORRFCME MEASURE 4Vr•Po�,AMIN I ACT'. UNOSEY WAUi0. PC. NOTES FIFTH ANNUAL REPORT - - - . CURRENT AND FORMER BUILDING STRUCTURES ARE SHOWN, 2. GLAXOSoTHKLINE CONTRACTED A NORTH CAROLINA UCENSED LAND • '+ SURVEYOR TO LOCATE WELLS AT THE SOUTH CAMPUS, NORTH COMPLEX -r - : .~ : _�-�•�-•�•'�'• •'�_' • r ___--_ —•-_-_ �..�---_— - WELLSTMON THEIN RHAM, NO PROPERIY. TOE PHE URVEYOREXIEUNSEIVES SULLY EARCHO INT W0109 NG " ..a� .�. .i -. •. " . ). :.:r. �" r.:L _a, - ,�• rxI - E"-�ww SURVEYING THE LOCATIONS ANDSA SEARCH OF THE AREA USINGCGftOUND �• �".o� �¢x-.s �pRO �r PENETRATING RADAR, FOUR WELLS (MW-4. RFI-4-B21, RFI-4-B22, AND -: :e : e� 1u.naa, pERttBO RFI-16-B11) COULD NOT BE LOCATED. uxo "-" - -- a - --, •. .M .'. ARY� 3. MARCH 9-10, 2016 MONITORING WELLS GW-858, GW10-S, GW37-S, +: r .• �� @�-1° MW-J, RFI-4-B18, RFl-4-B19, AND W-J WERE ABANpONED. AUGUST 16 •. ^I-: •'•_ 2017 MONITORING WELLS GW-33S AND W-4 WERE ABANDONED. ^ INJECTION WELLS IW-04R, IW-OJ, IW-0J5, IW-09, IW-13, AND IW-15 - - �^: - - r. WERE INSTALLED IN NONEMBER 2018, -- L 1 _ y _ ♦�_u i 5. NOT SAMPLED AS PART OF RCRA CORRECTNE MEASURES DURING OR SINCE THE BASEUNE SAMPLING EVENT. REFERENCES PA GROUNDWATER MONITORING WELLS TAKEN FROM CADD FILE TITLED 54/OWAN-DG-FIG5-15", DATED 06/22/00. 2. 121/10ETRIC FEATURES TAKEN FROM TEDD FILE TITLED "S&ME", DATED r_W / / cu-xs0'� .s II •� P cx-ras 11/ IMETRI ALL FEATURES WERE SHIFTED 208.)1 FEET AND R Fl� T••-x 223D35'39.423• TO ALIGN WITH GROUNDWATER MONITORING WELLS. 3. ALL BASE CPDD FILES USED DURING DRAWING PROTOME CONSTRUCTION - -� _ WERE TAKEN FROM COMPACT DISK SUPPLIED BY GSK. I ezx v 4. SNP-1 AND GW-S WERE SURVEYED IN NOVEMBER 2008 BY STANTEC •.\ / O 6, s w_- - I_.�p q I CONSULTNG. ,\ ��_.� •�<� c- - �m-es 5. COORDINATE SYSTEM SHOWN IS NORTH CAROLINA STATE PLANE NAD27. •,\ "'a A 6 - BNP-3, BNP-4, GW-47S, G -485 ANO W-2 WEE U D 09Y11/02 AND GW-49I AND GW-501WWERE SURVEYED CN R11/15/02 BY N / TA LOR WISEMAN AND TAYLOR, ). MONITORING WELL LOCATIONS FROM JOHN R. MCADAMS COMPANY, INC. MAY PA PA/ 012 DATED MAY 2, 2D12 (2012-05-02) ABB LOCATIDN.DWG) 8. ONSITE WELLS WERE RESURVEYED IN NOVEMBER 2015 BY TAYLOR WISEMAN TAYLOR, INJECTION WELLS IW-04R, IW-07, IW-07S. IW-09. IW-13, AND IW-15 WERE SURVEY BY TAYLOR, WISEMAN, TAYLOR IN DECEMBER 2018. wem PO e �� A FA oa \FA i o ; pNl— aw�A psGKKS CAMPUS. _ss % -1 I-INY v ) '\ 'un-eroz % GROOUONDRKATER MONITORING W FIGURE ppFA PA � N1 ,,\,,� KOrawlna xumeer.NUFT Reo �Jm-Mx-t Appendix C Regulatory Correspondence Waste Management ENVIRONMENTAL QUALJ7 e April 22, 2016 Lindsey Walata Shared Service Environmental Manager GlaxoSmithKhne 5 Moore Drive Post office Box 13398 Research Triangle Park, North Carolina 27709-3398 PAT MCCRORY Cowrmor DONALD R. VAN DER VAART &-vary MICHAEL 5COTT A ctiug ❑ireeav Re: Construction Completion Report — Soil Remediation for PCB Remediation and RCRA Corrective Action G1axoSmithKhne South Campus NCD 052 547 635 Dear Ms. W aiata: The North Carolina Hazardous Waste Section has completed its review of the RCRA corrective action portion of G1axoSmithKline's Construction Completion Report — Soil Remediation for PCB Remediation and RCRA Corrective Action dated September, 2015. The RCRA corrective action portion of this report is found to be acceptable at this time. It is our understanding from the report that the volatile organic compound soil remediation was successfully performed in thirteen of the fourteen areas addressed in the report. With the exception of SWMU 13 — Former Landfill, the Hazardous Waste Section agrees that the soils in the areas have reached a status of No Further Action for the volatile organic compound (VOC) impacted soils at this time (see attached table). Also note since VOC contamination remains at SWMU 13 —Former Landfill, remediation conducted under the corrective measures remedy, which includes a soil vapor extraction system and in -situ groundwater remediation, will continue. If you have any questions, please contact Carl Utterback at (919) 707-8212 or Rob McDaniel at (9I9) 707-8215, Sincerely, Carl Utterback, Environmental Engineer Division of Waste Management, NC DENR cc: Ken Feely, US EPA, Region 4 Philip Orozc❑ Harold A. McCarty Carl Utterback Robert C. McDaniel State of North Camlina I Environmental Quality I Write Management 1646 Mail Scrriee Ccntcr Zi 7 West ]ones Surd italeigia_ NC 27699-1646 919 707 END T GlaxoSrnith.Kline Research Triangle Park, North Carolina NCD 452 547 635 Construction Completion Report — Soil Remediation for PCB Remediation and RCRA Corrective Action AREA NAME DETERMINATION Drain Line and SWMU 12 Fonner Surface impoundment No Further Action Required SWMU 13 Former Landfill VOC remediation being conducted under the CMS remedy. Area WS-1 UlghtFole C No Further Action Required Area WS 1-2 ANP-B64-D No Further Action R uired Area WS-2 Light Pole B No Further Action Required Area WS-3 Light Pole A No Further Action Required Area WS-4 North Parking Lot Ste s No Further Action Required Area WS-5 Painting Project No Further Action R uired Area WS-6 AOC North Parking Lot No Further Action Required Area WS-6-2 Sinkhole Location No Further Action Required Area WS-7 SWMU 15 Former Gravel/Burn Pit No Further Action Required Area WS-8 SWMU 16 Monitoring Well GW- 411Storm Water Pipe Repair Area No Further Action Required Area WS-9 SWMU 16 - Area Behind Former Hazardous Waste Storage No Further Action Required Area WS-14 Light Pole PL-1 No Further Action Required