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HomeMy WebLinkAbout23068-19-092 - Approved EMP Sir Walter Gun Club 01.19.2021609 PREPARED FOR: Merritt - MW1, LLC 2066 Lord Baltimore Drive Baltimore, Maryland 21244-2501 PREPARED BY: S&ME, Inc. 3201 Spring Forest Road Raleigh, NC 27605 Corporate Registration for Licensing of NC Geologists No. C-145 NC Engineering Firm No. F-0176 January 15, 2021 -a January 15, 2021 North Carolina Department of Environmental Quality Division of Waste Management, Brownfields Program 217 West Jones Street Raleigh, North Carolina 27605 Attention: Mr. Brad Atkinson Brownfields Project Manager via email: brad.atkinson@ncdenr.gov Reference: Environmental Management Plan (EMP) for Site Development Hinton Oaks Blvd. Knightdale, North Carolina Brownfields Project Name: Sir Walter Gun Club Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 Dear Mr. Atkinson: S&ME, Inc. (S&ME), on behalf of the project developer Meritt — MW1, LLC, is submitting this environmental management plan (EMP) to address site development activities for five flex space buildings, along with associated parking lots, access drives and two stormwater ponds. Site development is anticipated to begin March 1, 2020. If you have any questions about the EMP for the proposed site redevelopment, please contact the undersigned. Sincerely, S&ME, Inc. -_//% /A/ / Bryan S. Wence Environmental Professional bwence@smeinc.com Samuel P. Watts, PG Senior Project Manager swatts@smeinc.com cc: Nathan Robb (nrobb@merrittproperties.com) — Merritt — MW1, LLC Mary Katherine Stukes(marykatherinestukes@mvalaw.com) — Moore & Van Allen Bruce Nicholson (bruce.nicholson@ncdenr.gov) — North Carolina Brownfields Program Enclosure: Environmental Management Plan for Site Development, dated January 15, 2021 S&ME, Inc. 13201 Spring Forest Road I Raleigh, NC 27616 1 p 919.872.2660 1 www.smeinc.com Environmental Management Plan (EMP) for Site Development Sir Walter Gun Club III Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 Table of Contents NC Brownfields Program Environmental Management Plan Checklist Form .......1 GeneralInformation...........................................................................................................3 Communications...................................................................................................................3 Notifications to the Brownfields Program.......................................................................4 RedevelopmentPlans..........................................................................................................4 ContaminatedMedia...........................................................................................................6 Part1. Soil...................................................................................................................................................7 Part2. Groundwater................................................................................................................................17 Part3. Surface Water................................................................................................................................18 Part4. Sediment........................................................................................................................................18 Part5. Soil Vapor.....................................................................................................................................19 Part6. Sub -Slab Soil Vapor.....................................................................................................................19 Part7. Indoor Air......................................................................................................................................20 Vapor Intrusion Mitigation System................................................................................20 ContingencyPlan................................................................................................................20 PostRedevelopment Reporting.......................................................................................23 ApprovalSignatures..........................................................................................................25 S&ME, Inc. 13201 Spring Forest Road I Raleigh, NC 276161 p 919.872.2660 1 www.smeinc.com • Environmental Management Plan (EMP) for Site Development III Sir Walter Gun Club Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 Table of Contents (cont'd) List of Figures Figure 1 — NCBP Diagram for Temporary Containment of Impacted or Potentially Impacted Soil Figure 2 — Site Vicinity Map (USGS Topographic Map) Figure 3 — Site Grading Cut/Fill Analysis Figure 4 — Cross Sections of Site Grading Plans Figure 5 — Summary Map of Prior Sample Locations Figure 6 — Prior Sample Locations with Proposed Site Development Figure 7 — Impact Berms Sample Locations List of Tables Table 1 — Soil Analytical Data — Former Rifle Range Berms (from October 12, 2010 Assessment Report) Table 2 — Summary of Sediment Analytical Results (from November 18, 2019 Assessment Report) Table 3 — Summary of Surface Water and Groundwater Analytical Results (from November 18, 2019 Assessment Report) Table 4 — Summary of Soil Analytical Results - June 23 Soil Assessment Table 5 — Summary of Analytical Results - November 2020 Soil Assessment Table 6 — Summary of Soil TCLP Analytical Results - December 2020 Appendices Appendix I — List of Amendments to Brownfields Redevelopment and Environmental Plan Appendix II — Remedial Action Plan Appendix III — Construction Drawings for Merritt Hinton Oaks Blvd - September 15, 2020 January 15, 2021 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: 1/15/2021 GENERAL INFORMATION Revision Date (if applicable): Click or tap to enter a date. Brownfields Assigned Project Name: Sir Walter Gun Club Brownfields Project Number: 23068-19-092 Brownfields Property Address: Hinton Oaks Blvd., Knightdale, NC Brownfields Property Area (acres): approx. 45.50 acres Is Brownfields Property Subject to RCRA Permit? ....................... ❑ Yes If yes enter Permit No.: - -N vi LaN , e to enter te' Is Brownfields Property Subject to a Solid Waste Permit ............ ❑ Yes If yes, enter Permit No.: Click or tap here to enter text. COMMUNICATIONS 0 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): Merritt — MW1, LLC Contact Person: Nathan Robb Phone Numbers: Office: 410-298-2600 Mobile: 443-250-1572 Email: nrobb@merrittproperties.com Contractor for PD: Merritt Construction Services. Contact Person: Nathan Robb Phone Numbers: Office: 410-298-2600 Mobile: 443-250-1572 Email: nrobb@merrittproperties.com Environmental Consultant: S&ME, Inc. Contact Person: Sam Watts, PG Phone Numbers: Office: 919-872-2660 Mobile: 919-801-4920 Email: swatts@smeinc.com Brownfields Program Project Manager: Brad Atkinson Phone Numbers: Office: 919-707-8748 Mobile: 919-768-2460 Email: brad. atkinson(a)ncdenr.gov Other DEQ Program Contacts (if applicable, i.e., UST Section, Inactive Hazardous Site Branch, 3 EMP Version 2, June 2018 Hazardous Waste, Solid Waste): 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: Flex Office, Light Industrial, and Light 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 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: Merritt — MW1, LLC (prospective developer) is proposing to redevelop the site with five flex space EMP Version 2, June 2018 buildings, along with associated parking lots, access drives and a stormwater detention ponds. The proposed buildings will each be one story. No below -grade structures are anticipated other than the building foundation system and utilities. The buildings will be masonry wall construction, with isolated columns and reinforced concrete slabs. Finished floor elevations for the proposed development range from approximately 288 ft. AMSL for building Al to approximately 296 ft. AMSL for building 131. Detailed site construction plans are included in Appendix III. Two dilapidated concrete block structures, related to the site's prior use as a small arms firing range, are located on -site. The structures will be demolished prior to site development. Site grading will be performed in a phased approach for each of the two building areas, starting with the Southern lot (Lot B) and proceeding to Northern lot (Lot A). Current redevelopment grading plans indicate the Site is a net import site and no soil will be excavated and exported off -site for disposal. During grading activities, lead -impacted soil will be temporarily stockpile in a designated treatment area on the Southern lot (Lot B), in accordance with Figure 1 - NCBP Diagram for Temporary Containment of Impacted or Potentially Impacted Soil. Select lead -impacted soils will be treated with a metal stabilization product (Enviroblend° or similar product) to regulate pH and form insoluble compounds so lead will not leach from the soil into the environment, in accordance with the Remedial Action Plan included in Appendix II. Lead -impacted soil may also be augmented with cement to meet geotechnical requirements for on -site reuse as structural fill. No soil will be imported to the Brownfields Property without prior authorization from the NCBP. 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 EMP Version 2, June 2018 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: 3/1/2021 b) Anticipated duration (specify activities during each phase): A full detailed construction schedule specifying activities during each phase has not been developed at this time. The major construction milestones are as follows: March 2021— Start initial site development. Install erosion & sediment control measures, limited remediation & management of the surficial lead -contaminated soil, clear vegetation, begin overall site grading. July 2021— Begin construction of Building B1 October 2021— Begin construction of Building B2 November 2021— Begin construction of Building B3 April 2022 — Begin construction of Building Al July 2022 — Begin construction of Building A2 October 2022 — Complete site redevelopment activities. c) Additional phases planned? ❑ Yes ❑ No If yes, specify the start date and/or activities if known: Start Date: Click or tap to enter a Gate. Planned Activity: ' or tap here to enter text. Start Date: Click or tap to enter a date. Planned Activity: - - y - here 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: 10/31/2021 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 6 EMP Version 2, June 2018 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): A firing range was historically located in the southwest portion of the site. The historical location of the firing is a rectangular feature, with a 100-yard and 200-yard impact berm, depicted on the attached site development figures. Hereafter, this area is referred to as the Rifle Range. Within the rifle range, total lead concentrations ranging from 35 to 5,100 mg/kg were detected in the soil within the 100-yard impact berm, and total lead ranged from 100 to 8,200 mg/kg within the 200-yard impact berm during a sampling event in 2010. Contamination in the soil berms exceeding the NCDEQ Industrial/Commercial Health -Based Preliminary Soil Remediation Goal (PSRG) for lead of 800 mg/kg; the Residential Health -Based PSRG of 400 mg/kg; and the Protection of Ground Water PSRG of 270 mg/kg were reported at depths of up to 30 inches below grade. Samples from the 100-yard berm and the 200-yard berm were also analyzed for Toxicity Characteristic Leaching Procedure (TCLP) for lead, and were found to exceed the federal regulatory threshold of 5 milligrams per liter (mg/L) for disposal of solid waste as non -hazardous (40 CFR § 261.24). Analytical results of soil samples collected at the site in 2010 and 2020 indicated lead and the Semi -Volatile Organic Compounds (SVOCs) benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene, chrysene, and indeno(1,2,3-cd)pyrene were detected at concentrations greater than their respective PSRGs. Soil with contamination exceeding PSRGs appears to be confined to a few specific areas of the site, related to the prior use as a gun range. Contaminated soil is confined primarily to the southern part of the site in the areas of the former impact berms, the low house, and the trap house. 2) Depth of known or suspected contaminants (feet): Contaminated soil is confined primarily to the surface within the first 1 ft-bgs. In most instances where laboratory analysis detected constituents greater than the reporting limit in the 0 to 6- inch interval, subsequent analysis of soil from the same boring location, from the 12 to 18 inches interval did not detect constituents at concentrations greater than the laboratory reporting limit. 3) Area of soil disturbed by redevelopment (square feet): 7 EMP Version 2, June 2018 The total disturbed area of the project covers an area of approximately 26.83 acres or 1,168,700 square feet. 4) Depths of soil to be excavated (feet): Current topography ranges from approximately 267 ft-AMSL to approximately 302 ft-AMSL. Based on the proposed development, some areas of the site will be excavated to depths of approximately twelve feet below existing grade and other areas of the site will be raised in elevation by way of fill to approximately eleven feet above existing grade. 5) Estimated volume of soil (cubic yards) to be excavated (attach grading plan): Approximately 38,850 cubic yards of soil will be excavated from the northern portion of the site (Lot A) and approximately 22,000 cubic yards of soil will be excavated from the central and southern portion of the site (Lot B). To achieve the final grade across the site, Lot A will include approximately 58,200 cubic yards of fill and Lot B will include approximately 22,500 cubic yards of fill. The cut/fill exhibit depicting these areas are shown on the attached Figure 2. 6) Estimated volume of excavated soil (cubic yards) anticipated to be impacted by contaminants: Contaminated soil is confined the southern part of the site in the areas of the former impact berms, areas around the former skeet & trap houses, and limited areas of the skeet and trap field. Soil assessments completed in June 2020 and November 2020 have delineated the areas of contaminated soil containing lead and SVOCs above their PSRGs. Laboratory analysis has identified soils impacted with lead at levels above 5 milligrams per liter (mg/L) for soils analyzed by the Toxicity Characteristic Leaching Procedure (TCLP). The estimated volume of soil from these delineated contaminated areas ranges from approximately 3,400 to 4,500 cubic yards, including approximately 1,100 cubic yards of lead impact soil exceeding 5 mg/L by TCLP. 7) Estimated volume of contaminated soil expected to be disposed of offsite, if applicable: No contaminated soil will be disposed of off -site, unless pre -approved in writing by DEQ. The areas of contaminated soil containing lead and SVOCs above their PSRGs will be buried, or covered on -site, below the proposed final grade, in such a way to minimize contact by future users. Soil that is excavated in areas denoted as cut will be used as fill in other areas of the site. Current redevelopment grading plans indicate the Site is a net import site. Soil that is found to be geotechnically unsuitable may be augmented with cement to improve geotechnical stability and be re -buried on -site. Part 1.A. MANAGING ONSITE SOIL If soil is anticipated to be excavated from the 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). EMP Version 2, June 2018 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). Click or tap here to enter text. ❑ 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 ® TCLP results Samples from the 100-yard berm and the 200-yard berm were also analyzed for Toxicity Characteristic Leaching Procedure (TCLP) for lead, and were found to exceed the federal regulatory threshold of 5 milligrams per liter (mg/L) for disposal of solid waste as non -hazardous (40 CFR § 261.24). A soil sample from HA-46, located in the skeet range was found to have lead greater than 5 mg/L by TCLP analysis. ❑ 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: 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 9 EMP Version 2, June 2018 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) ❑ Site -specific risk -based cleanup level. Please provide details of methods used for determination/explanation. LiicK or tap here to enter text. Additional comments: Select lead -impacted soils will be treated with a metal stabilization product (Enviroblend° or similar product pre -approved by DEQ) to regulate pH and form insoluble compounds so lead will not leach from the soil into the environment, in accordance with the Remedial Action Plon included in Appendix II. . 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 FXI ® Describe cap or fill: Impacted soil left at the site will be capped with paved surfaces and landscaped areas. Upon completion of final site development, no impacted soil is anticipated to be exposed. ® 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: -k or tap here to enter t- 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: Minimize the number of times the contaminated or stockpiled soil is handled; all material 10 EMP Version 2, June 2018 handling will be conducted in the controlled exclusion zone outside the excavation area. If fugitive dust becomes a problem for the workers or looks like it may leave the site, fugitive dust emissions will be controlled as needed by wetting, using water obtained from clean sources. Care shall be taken not to over -wet excavated soil. ❑ 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: ® No, explain rationale: Analytical results of the environmental assessment indicate lead and semi -volatile organic compounds (SVOCs) [benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene, chrysene, and indeno(1,2,3-cd)pyre nel were the only constituents detected above their respective PSRGs. Lead and SVOCs are not readily field -screened. Additional shallow soil assessment in November 2020 will be used to delineate the extent of these contaminants. Therefore, field screening of site soil will not occur unless an unknown area of concern is encountered. If an unknown area of concern is encountered (i.e., previously undiscovered berm, piles of bullets, etc.), redevelopment activities in the area will be suspended. The construction company will immediately notify S&ME and the PD. A qualified environmental professional from S&ME will assess the area, evaluate the waste materials and/or impacted media in the area, if present, and determine the proper means for managing these materials. Within 24 hours, S&ME will inform NCBP of the findings and subsequent actions to be taken for managing these materials. Soil Sample Collection ® Yes, describe the sampling method (e.g., in -situ grab, composite, stockpile, etc.): Based on prior assessment activities, constituents of concern at the site include lead and semi -volatile organic compounds (SVOCs). The first phase of site development includes excavating select areas where soil has been found to exceed PSRGs for lead. Confirmation soil sampling in these excavated areas shall be conducted in accordance with the Remedial Action Plan included in Appendix II. Besides the sampling associated with the limited soil excavation described in the Remedial Action Plan, no additional soil sample collection is not anticipated at this time. If an unknown area of concern is encountered (i.e., previously undiscovered berm, piles of 11 EMP Version 2, June 2018 bullets, etc.), redevelopment activities in the area will be suspended. The construction company will immediately notify S&ME and the PD. A qualified environmental professional from S&ME will assess the area, evaluate the waste materials and/or impacted media in the area, if present, and determine the proper means for managing these materials. If impacted media is present, an S&ME representative will collect soil samples for laboratory analysis. Within 24 hours, S&ME will inform NCBP of the findings and subsequent actions to be taken for managing these materials. ❑ No, explain rationale: Click or tap here to enter text. 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): "lick or tap here to P --_- -_ ❑ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text ❑ PCBs: Specify Analytical Method Number(s): Click or tap here to enter text ❑ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Specify Analytical Method Number(s): Click or tar here =nter text ® 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: lick or tap here to enter text. ❑ 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): 12 EMP Version 2, June 2018 Click or tap here to enter text ❑ Pesticides: Specify Analytical Method Number(s): ❑ PCBs: Specify Analytical Method Number(s): r Iirle nr tap here to en+or tov+ ❑ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): 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. ® If final grade sampling was NOT selected please explain rationale: Contaminated soil will be covered by impervious surface, clean soil, or mulch. If a final grade sampling plan is required, it will be submitted under separate cover. Part 1.B. 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: 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? Approximately 20,000 to 25,000 cubic yards. 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.) Estimated approximately twelve feet below current ground surface (cut) to approximately eleven feet above ground surface (fill). 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: 13 EMP Version 2, June 2018 Wake Stone Corporation 6811 Knightdale Blvd. Knightdale, NC 27545 Phone — 919-266-9266 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. Fill soil from Wake Stone Corporation has been pre -approved by the NCBP by analytical testing for use on other Brownfields projects. The Wake Stone Knightdale Quarry is a secure facility surrounded by fencing, and has been a crushed stone mining operation since approximately 1970. Through the crushed stone manufacturing processes (blasting, mining, crushing, and screening), "fines" (stone not otherwise classified by size, intended use, or other criteria) are produced which, in turn, are routinely used for compaction fill. 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): 11: -I. -'- `-'- I- -'-- i ❑ Pesticides: Specify Analytical Method Number(s): DICK or tap here to enter tex ❑ PCBs: Specify Analytical Method Number(s): Click or tap here to enter tex' ❑ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Click or tap here to enter tm,' 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 borrow sites. If using a quarry, provide information on the type of material to be brought onto the Brownfields Property. Stone materials including processed fill (backfill), ABC stone (subgrade and working pad), #57 stone (foundation drainage), and surge stone (construction entrance) will be brought on site from the Wake Stone Corporation. Wake Stone has been pre -approved by the NCBP by analytical testing for use on other Brownfields projects. No additional sampling/characterization of the stone aggregate will be performed. Part 1.C. EXPORTED SOIL 14 EMP Version 2, June 2018 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. Current redevelopment grading plans indicate the Site is a net import site and no soil will be excavated and exported off -site for disposal. Soil that is excavated in areas denoted as cut will be used as fill in other areas of the site. During grading activities, lead -impacted soil may be temporarily stored in a designated stockpile area on the Southern lot (Lot B), in accordance with Figure 1 NCBP Diagram for Temporary Containment of Impacted or Potentially Impacted Soil. Select lead -impacted soils will be treated with a metal stabilization product (Enviroblend° or similar product) to regulate pH and form insoluble compounds so lead will not leach from the soil into the environment, in accordance with the Remedial Action Plan included in Appendix II. Soil may be augmented with cement to meet geotechnical requirements for on -site reuse as structural fill. The areas of contaminated soil containing lead and SVOCs above their PSRGs will be buried, or covered on -site, below the proposed final grade, in such a way to minimize contact by future users. 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. 15 EMP Version 2, June 2018 3) Additional Details: (if transfer of soil to another property is requested above, please provide details related to the proposed plans). Click or tap here to enter text. Part I.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 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? ❑ If yes, provide specifications on barrier materials: Click or tap here to enter text. ® If no, include rationale here: Contaminated soil is confined primarily to the surface, within the first 1 ft-bgs. In most instances where laboratory analysis detected constituents greater than the reporting limit in the 0 to 6- inch interval, subsequent analysis of soil from the same boring location, from the 12 to 18-inch interval did not detect constituents at concentrations greater than the laboratory reporting limit. Contaminated soil exceeding PSRGs will remain undisturbed or will be managed according to the Remedial Action Plan included in Appendix II. In accordance with the Remedial Action Plan, surficial, contaminated soil will be managed as one of the first redevelopment activities prior to overall site grading and installation of utility trenches. Surficial soil with known contamination greater than PSRGs will be relocated, on -site, in a manner to avoid areas where utilities are anticipated to be installed. The area of the relocated soil shall be field -marked so construction workers can avoid contact with the contaminated soil. The area shall be covered with a geotextile and covered with engineered backfill compacted per specifications and covered at the surface with a paved parking lot at the surface. The location of the re -located soil will be measured with a global positioning system (GPS). In the instance where utilities must be installed through the relocated contaminated soil, soil management will be documented by a qualified environmental professional, as above. Other comments regarding managing impacted soil in utility trenches: Click or tap here to enter text. 16 EMP Version 2, June 2018 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 approximately 10 to 15 feet below the ground surface. 2) Is groundwater known to be contaminated by ❑onsite ❑offsite ❑both or ❑unknown sources? Describe source(s): No known groundwater contamination. 3) What is the direction of groundwater flow at the Brownfields Property? Groundwater flow generally mimics surface topography. On the Northern lot (Lot A) groundwater flow is to the south. On the Southern lot (Lot B) groundwater flow is to the north. 4) Will groundwater likely be encountered during planned redevelopment activities? ❑Yes ®No If yes, describe these activities: Regardless of the answer; in the event that contaminated groundwater is encountered during redevelopment activities (even if 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). If contaminated groundwater is encountered that will inhibit the progress of site development, the contaminated groundwater will be pumped from the excavation, contained, sampled, and properly disposed at a licensed facility if needed. 5) Are monitoring wells currently present on the Brownfields Property? ................. ❑x Yes ❑No If yes, are any monitoring wells routinely monitored through DEQ or other agencies?..................................................................................................................❑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. 7) Please provide additional details as needed: 17 EMP Version 2, June 2018 Click or tap here to enter text. 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 contaminated surface water is encountered or clean surface water enters an excavation that will inhibit the progress of site development, the surface water will be pumped from the excavation, contained, sampled, and properly disposed at a licensed facility if needed. Sedimentation and erosion control measures will be in place to minimize impacts to surface water during development activities. 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 4) Attach a map showing location of known contaminated sediment at the property. S) In the event that contaminated sediment is encountered during redevelopment activities, list activities for management of such events (stream bed disturbance): Click or tap here to enter text. 18 EMP Version 2, June 2018 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:..... El 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? Click or tap here to enter text. 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: If contaminated vapors are encountered during redevelopment activities, which might inhibit the safe work practices of the construction personnel, a temporary ventilation system will be installed to divert contaminated vapors away from the breathing zone of the site workers and the public. 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? ❑0-6 inches El Other, please 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 If contaminated sub -slab vapors are encountered during redevelopment activities that will 19 EMP Version 2, June 2018 inhibit the safe work practices of the construction personnel, a temporary ventilation system will be installed to divert contaminated vapors away from the breathing zone of the site workers and the public. 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: If contaminated indoor air is encountered during redevelopment activities that will inhibit the safe work practices of the construction personnel, a temporary ventilation system will be installed to divert contaminated vapors away from the breathing zone of the site workers and the public. 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: Click or tap here to enter tex VIMS Plan shall be signed and sealed by a NC Professional Engineer If no, please provide a brief rationale as to why no vapor mitigation plan is warranted: No VOCs were detected above their respective PSRGs and vapor intrusion is not expected to be an issue. Analytical results of the environmental assessment indicate lead and SVOCs were detected above their respective PSRGs. The soils containing lead and SVOCs above their PSRGs will be delineated from a November 2020 assessment, temporarily stockpiled on site, and buried on the central and southern portion of the site (Lot B) at locations at least fifteen feet from the proposed building footprints and at least one foot below the proposed final grade. 20 EMP Version 2, June 2018 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) Click ^-tap here tn PntPr'--vt ❑ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text ❑ PCBs: Specify Analytical Method Number(s): -ucK ur Lap nere w enLer LexL ❑ 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. Click or tap here to enter text Please provide details on the proposed methods of managing the following commonly encountered issues during redevelopment of Brownfields Properties. Available data indicates a low potential to encounter unexpected contaminant sources at the site. Historic site use has been documented as residential, timber land, and agricultural purposes from approximately 1937 through 1983, and a portion of the Site was used as a private sporting and gun club from the 1950s until 1988. Analytical results from widespread soil sampling at the site has delineated lead and the SVOCs at concentrations greater than their respective PSRGs, confined primarily to the southern part of the site (Lot B) in the areas of the former impact berms, the low skeet house, and the trap house. Underground Storage Tanks: Available information indicates that it is unlikely for USTs to be present at the site. In the unlikely 21 EMP Version 2, June 2018 event a UST is encountered, redevelopment activities in the area will be suspended. The construction company will immediately notify S&ME and the PD. S&ME will assess the area, evaluate the waste materials and/or impacted media in the area, if present, and determine the proper means for managing these materials. Within 24 hours, S&ME will inform NCBP of the findings and subsequent actions to be taken for managing these materials. If a UST is uncovered, confirmatory samples will be collected from the tank basin, four sidewalls, and along any associated product lines not to exceed 10-foot intervals. Samples collected from the newly discovered contaminant source area(s) will be submitted to a North Carolina certified laboratory for analysis. Analytical methods to be employed for these samples may include one or more of the following: VOCs by Method 8260; SVOCs by Method 8270; RCRA Metals by Methods 6010/7471. An environmental waste management company will be contracted for removal of contents of the UST, and to clean up any hazardous substances that may have been released. Redevelopment activities will not resume until after released hazardous substances have been removed, and any explosive or dangerous atmospheric conditions have been mitigated. Sub -Grade Feature/Pit: If buried features or pits are encountered, redevelopment activities in the area will be suspended. The construction company will immediately notify S&ME and the PD. S&ME will assess the area and if impacted media is present, S&ME will direct management of the impacted media in the same manner as described above for Underground Storage Tanks. Within 24 hours, S&ME will inform NCBP of the findings and subsequent actions taken for managing these materials. Buried Waste Material: If an unknown area of concern is encountered (i.e., previously undiscovered berm, piles of bullets, etc.), redevelopment activities in the area will be suspended. If buried waste materials are encountered that indicate possible contamination (visual and/or olfactory indications), or if excessive liquids are encountered, redevelopment activities in the area will be suspended and the construction company will immediately notify S&ME and the PD. S&ME will conduct a visual inspection for discoloration, unusual odors, evidence of fill or other indications of impacted soil and waste, and soil/waste screening will be conducted for volatile vapors with a Photo -Ionization Detector (PID). Should the preliminary field assessment indicate the presence of contaminants, the Brownfields Project Manager will be notified within 48 hours and consulted as to potential further sampling, reporting and mitigation. If it is determined samples need to be collected from the newly discovered contaminant source area(s), S&ME will submit samples to a North Carolina certified laboratory for analysis. Analytical methods to be employed for these samples may include one or more of the following: VOCs, by Method 8260; SVOCs, by Method 8270; RCRA Metals by Methods 6010/7471; Pesticides by Method 8081; Herbicides by Method 8151; Polychlorinated biphenyls (PCBs) by Method 8082. If required, an assessment and removal plan will be submitted to the Brownfields Project Manager for approval prior to assessment and removal activities. Re -Use of Impacted Soils On -Site: 22 EMP Version 2, June 2018 See previously described processes for managing soil. Impacted soils will only be re -used onsite following approval by the NCBP Project Manager. 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 1.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: 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 1/31/2022 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; 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). 0 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. 23 EMP Version 2, June 2018 APPROVAL SIGNATURES Brownfields Project Number: 23068-19-092 Brownfields Project Name: Sir Walter Gun Club) Nathan Robb Digitally signed by Nathan Robb Date: 2021.01.21 15:26:23-05'00' Prospective Developer: Merritt — MW1, LLC Date 1/21/2021 Printed Name/Title/Company: Nathan Robb/Merritt Properties: Consultant: S&ME, Inc. Date 1/15/2021 Printed Name/Title/Company: Sam Watts, PG/Senior Project Manage sir" � i. �r�►�—�� 1 /19/2021 Brownfields Project Manager:Brad Atkinson/NCBP Project Manager Date Click or tap to enter a date. 24 EMP Version 2, June 2018 Figures Figure 1 NCBP Diagram for Temporary Containment of Impacted or Potentially Impacted Soil Cross -Section View Top Plastic Cover Sheeting: Underliner: 1 layer, minimum of 10 (1 Layer, minimum: 10 mil thick) mil thick plastic Berm (Straw bales, Weight composted earth, etc.) (If plastic cover used) Land Contaminated Soils Surface \ x Map View Straw Bale Berm Weight O f ■ L Contaminated Soils { ■ u ■ o Plastic Sheeting Note: Adapted from NC DEQ UST Section "Guidelines for Ex Situ Petroleum Contaminated Soil Remediation" dated December, 1, 2013 25 EMP Version 2, June 2018 &ea�erdarf re SfL 'PO 2 v 'ter b Q 4 Q z JJ g pp � w Q J V - -- �- -- - Lerkh:a 1 >4 z z z - bake johruori v Ny z Q O U 0 ❑ n J W n 3 m a.SAI N C Q O � 7rf DA? Q OR 0 BELT WO"Lo z Q V �c = z "� o NYDALE BLVD rff nR XNI � A� Mr z SN�pPLS _ 2 3 r �6 Ll S z ,y.N�Gyr � v A` ALvo tit rui _ 5AT lF. 17IVNITF nq VMAc.e HA S-Q 4 0 . O p r. v ❑ aryl❑ Y gg G PFfti �' ESL g o _. yhi b7 q,^ �C4 v SCALE: r�n� re 1 = 1,000 - o IGug t a e c DATE: f FLASOR 2 2-20-20 ' rryf.NaRi •.. i PROJECT NUMBER 4305-19-213 REFERENCE: �Rr FIGURE NO. GIS BASE LAYERS WERE OBTAINED FROM THE USGS NATIONAL TOPO MAP VIEWER. THIS ? s jLL'u',;-. MAP IS FOR INFORMATIONAL PURPOSES ONLY. ALL FEATURE LOCATIONS DISPLAYED ARE APPROXIMATED. THEY ARE NOT BASED ON CIVIL SURVEY INFORMATION, UNLESS STATED 0 1,000 2,000 Site OTHERWISE. (FEET) NLr LAVRENSWAV 0 Parcels I � I I I I 301- - f►' LOT BLDG. BLDG. Al A2 \ -297- � II III � � �� � ti" "•, =_-; _- ,\\ _ .\\\\ �\\\ _ _ .®� �8 , / , , / / / / / 111 � � IIII • ���\ \ II , / � /�� �� � � _- RNA \ \\ III \ \\\\\\ \ - 00\ 11 \��_-I I- • 1 BLDG. III I I I - I B3 BLDG. \\ \ \ 1 I I I \ I -- BLDG. 131 - - ^ \ 'z� \ POND Volume Table Number Minimum Elevation 1-12.000 Maximum Elevation -11.000 Color ■ 2 -11.000 -10.000 ■ 3 -10.000 -9.000 -9.000 ■ 4 -8.000 5 -8.000 -7.000 ■ 6 -7.000 -6.000 ■ 7 -6.000 -5.000 8 -5.000 -4.000 9 -4.000 -3.000 10 -3.000 -2.000 11 -2.000 -1.000 ■ 12 -1.000 0.000 ■ 13 0.000 1.000 14 1.000 2.000 15 2.000 3.000 16 3.000 4.000 ■ 17 4.000 5.000 ■ 18 5.000 6.000 19 6.000 7.000 20 7.000 8.000 ■ 21 8.000 9.000 ■ 22 9.000 10.000 ■ 23 10.000 11.000 ■ CUT / FILL TABLE CUT LOT A 38,853 CY LOT B 22,005 CY FILL 58,195 CY 22,560 CY TOTAL 19,342 CY (FILL) 555 CY (FILL) 19897 CY (FILL) 3201 SPRING FOREST ROAD RALEIGH, NC 27616 (919)872-2660 N a1 z U z ate', � O ° z > J V o Z H U Z Q C„7 U p �L4 A o ZZ z LU Q cn w LU o z = ul) O PROJECT NUMBER 4305-19-213 DRAWING NUMBER W Q c 0 Z FIG - 3 - tip. 4 M �I 9 WO �'. Ala zuu-yara impacterm (2010) Samples S-4 C-1, 5-4 C-2, S-4 C-3, S-4 C-4, S-6 C-1, S-6 C-2, S-6 C-3, S-6-C4 were collected from this berm. , l IiA�I '4 l yc Y q �• . A21 lk HI ` DEVELOPER DOES NOT wTPmrn To rnFi/FLnp I 1 LOT 3A 4 � Qw- I I'M r — ! w Ln I i3A 5 % 0 f` w w Q U IME (n z z CS U V ARFA 3N Stockpiled Clay HA=i0 , '• " �I I p — �� Target DebrisA. HA-14 I �+ O w # %r HA-44 wi �. = l7 HA-12 HA -ii3 W , j Z High House M{ly_3 HA 4R I �� 17A-40 HA ZO `.a k• I [Ja HA -23 NA=24 FIw=4r Trap House 4� 3 ' 100-Yard Impact Berm (2010) HA-z2 HA-35 Samples S-1 C-1, S-1 C-2, 5-1 C-3, S-1 C-4, HA-Y7 HA 34 _ S-2 C-1, S-2 C-2, S-2 C-3, 5-2 C-4, m - x S-3 C-1, S-3 C-2, S-3 C-3, S-3-C4 were TM1 collected from this berm- HA-39 ❑w Ouse Soil Sample (June 2020 $ Oct 2020) Stream HA 51 �� - !AREA 2 Side Berm "'Y Less than PSRGs Full Project r, Pond ao 010 LXCOOTS s Range -25 I Not Anal zed J REFERENCE: Rifle Range + _ Soil With Lead > 5 mg/L TCLP Skeet and Tr ^ 7 GIS BASE LAYERS WERE E)9TWNEE) FReM:Fl IE: 2617 Ne8NEIVAP AERIAL eRTI 18IMAGERY Still Exceeding PSRGS LAYER. STREAM AND POND LOCAT10NS PROVIDED BY WITHERS RAVE NEL ON 312,12020. 1 REPORT FROM S. & ME DATED JAN.4, 2011. THIS MAP 15 FOR INFORMATIONAL PURPOSES S&ME Sample Location (Nov. 20'19y ONLY. ALL FEATURE LOCATIONS DISPLAYED ARE APPROXIMATED. THEY ARE NOT BASED -+ • ON CIVIL SURVEY INFORMATION, UNLESS STATED OTHERWISE- b ., 200 406 �. _ � Monitoring Well Sample i r1$F Sedimenv Surface Water Sample 1 " = 200 ' DATE: PROJECT NUMBER 4305-19-213 0111M PROSPECTIVE DEVELQPER OflES NQT FIr LOT 3A I F HA-2. I 1 20AM 1 1 1 1■ �.� 1 111 - 200-Vaia impactBerm 1 1 1 ! 1 4 Samples S-4 C-1, S-4 C-2, S-4 C-3, S-4 C-4, 0 - - - - LOT A--- S-6 C-1, S-6 C-2, S-6 C-3, S-6-C4 were collected from this berm- _ _ _ _ _ _ ti MATCHLINE - SFE SHEET C3.2 — \ HA-4 -- HA-5— SW-.1Y5ED-.1 I r ROL, IAL if , ` I �! •ter_ = 3y ►.`5W=2/SE 2���,::. d 1'.•', ��F;r 1• R 31 H11-.10 A AEL 1\.� WWI V �.�� w� :. ■ y - ■ ■ ` . 1 11 - UA Stockpiled Clay . _�1r-., 1 j Target Debris HA-14 r ' ■ ; — _ x a- - HA-1 Z HA-44 °� HA 11, ` �SW-3/SED-3 5 kol :* , ; 1 ■� , ]�� . �� FiA' 2 AREA 4'. ,� . f _ r- �_ ` `-� HA_ U _ , 1 r v ' -1 1 HA 16 High House HA 40.y bT ■■ -� 19,E C/y� ■■■`SLR 11 i f^A _-- 4W- 1 IJ �I MV11=4 F► IN ; HA'24 la 1 1 1 HA-2 SNc�■_C�7 �_a�'e�.r�Y___i 1 ■ � `. `. 1_NI ------------------ 1 11 1 s � r. IN , HA-22 � NA_7� 'HA=45.n,,r_, `fir -■� A-4G.,//��i x. u'na�n. c �� � ._��--J_ � •� ■ a 1 I ■-ALDI 1 I -- 1 ImpactBerm 2 1 r �+ +� Samples 5-1 C-1, 5-1 C-2, 5-1 C-3, 5-1 C-4, S-3 C-1, S-3 C-2, S-3 C-3, S-3-C4 were r I rnmprm ��. -HA 25� REFERENCE LAYER AND THE OVERALL GRADING AND DRAINAGE PLAID DATED 1-23.2020. STREAM AND ADDITIONAL SOIL TESTING REPORT FROM 5 & ME DATED JAN. 4, 21711- THIS MAP 15 FOR INFORMATIONAL PURPOSES ONLY- ALL FEATURE LOCATIONS DISPLAYED ARE APPROXIMATED. THEY ARE NOT BASED ON CIVIL SURVEY INFORMATION, UNLESS STATED OTHERWISE. HA 28 Trap House xe."~ ■ �� HA-38 � Law House �. r A_ 58"A3 f'� _ .. Side Berm %i S&ME Sample Location Nov. 2019) Stream S&ME Monitoring Well Sample Location - Nov. 2019 Q Full Project Site S&ME Sediment/ Surface Water Sample Location - Nov. 2019 Pond Soil Sample Locations June 2020 & Oct 2020 Skeet and Trap Field Less Than PSRGs L Site Exceeds PSRGs Uounty Parcels r_4 D ❑ L; 1 " = 200 ' DATE, �r20 29 PROJECT NUMBER 4305-19-213 11[slll:l: Tables SAMPLE ID S- - ( ra ) Dup - 1 Grab) S-1 Comp S-2 Comp -3 C-2 (Grab) S-3 Comp S- (Grab) S-4 Comp S-5 Comp GI (Grab) S-6 Comp Equipment Blank Trip Blank Background Composite 100-yard Rifle Range 12" Base of Berm 100-yard Rifle Range Composite 200-yard Rifle Range 12" Base of Berm 200-yard Rifle Range NCDENR IHSB Preliminary Healtl NCDENR IHSB Protection of Grou Hazardous Waste Section Haz Waste NOTES: Sample data from 1988 sampled by NCDENR and NCDENR IHSB Preliminary Health -Based PSRG NCDENR IHSB Protection of Groundwater PSRG ft.bgs = feet below ground surface mg/Kg = milligrams per kilogram mg/L = milligrams per liter µg/kg = micrograms per kilogram NA = Sample not analyzed for parameter or not ap Bold indicates concentration detected above sampl iBold and Shaded indicates sample concentration al jThe composite sample (S-1 Comp) from the 100-y ,The soil samples collected in 1988 were from the c TABLE 1 SOIL ANALYTICAL DATA (October 12, 2010) FORMER RIFLE RANGE BERMS - SIR WALTER GUN CLUB KNIGHTDALE BOULEVARD KNIGHTDALE, NORTH CAROLINA NCDENR IHSB ID NONCD0000019 S&ME Project No.1054-10-252 1 of 1 SAMPLE d -a1 9 1 0 1 9 a q .2 E Rifle Range Berm DATE DEPTH Total Total ExtractableP. or l,ab ID SAMPLED ft. b (mg/Kg) (mg/Kg) (mg/L) SVOCs / PAHs - Method 8270 (mg/Kg) 10/12/2010 0-6" 0.7 78 NA < 0 12/ 0- NA . <0.036 1 2.3 71.8 0.35 10/12/2010 0-6" ENA 5,100 91 <1.8 0.66 <0.036 5.9 7.4 9.7 4.8 2.7 5.8 2.6 <1.8 ] 7.2 0.32 3.9 0.36 10/12/2010 12-18" 1,200 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.096 NA 4.1 7.1 10/12/2010 100-Yard Rifle 24-30" 470 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Range Berm 10/12/2010 12-18" NA 260 NA NA NA i NA NA NA I NA NA I NA NA NA NA NA NA NA NA 10/12/2010 24-30" NA 35 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 10/12/2010 0- " 0.56 430 NA <0.0. <0.036 <0.036 76.036 <0.036 <0. 6 < , 6 70. 6 70, <0.03 <0.0_ < . 6 <0.036 < . 3 , <0.036 NA 70.01 10/12/2010 0-6" 0.98 3,000 NA <0.36 <0.36 <0.36 1.7 2.5 2.3 1.3 0.99 1.6 <0.36 1.8 <0.36 1.2 <0.36 0.79 1.6 10/12/2010 12-18" NA -,q-3,200 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 10/12/2010 24-30" NA 22 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 10/12/2010 0-6" NA 7,800 NA NA NA NA NA NA NA NA NA NA . A NA NA NA NA A 10/12/2010 0-6" NA 3,400 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 10/12/2010 12-18" NA 8,200 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 10/12/2010 24-30" NA 440 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 200-Yard Rifle 10/12/2010 12-18" NA '3,500 NA NA NA NA NA NA NA NA NA I NA NA NA NA NA NA NA Range Berm 10/I2/2010 24-30" NA 560 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 107rr 10 M7 I NA 160 NA NA NA A NA NA NA NA NA NA NA NA NA NA NA NA NA 10/12/2010 0-6" NA 410 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 10/12/2010 12-18" NA 106 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 16/12/2010 24-30" NA 2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 484029- 10/12/2010 - <0.001 <0.005 NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 NA L4840 9- 10/6/2010 - <0.001 <0.005 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 3129/4127 11/9/1988 0.25 <1.9 <19 <1.0 <0.33 <0.33 <0.33 <0.33 <1.65 <1.65 <1.65 <1.65 <0.33 <1.65 <0.33 <0.33 <1.65 NA <0.33 NA NA 3133/4130 11/9/1988 0.25 6 1r1,600 16 <0.33 <0.33 <0.33 6.67 15.67 8.5 14.5 9.67 7.83 <1.65 5.83 <0.33 <0.33 <0.33 3134/4131 11/9/1988 1 <1.9 <19 <1.0 <0.33 <0.33 <0.33 <0.33 <1.65 <1.65 <1.65 <1.65 <0.33 <1.65 <0.33 .1983 <0.33 2.17 3.17 <0.33 <1.65 3135/4132 11/9/1988 0.25 3.8 7,200 1.6 <0.33 <0.33 <0.33 <0.33 <1.65 <1.65 <1.65 <1.65 <0.33 <1.65 <0.33 <0.33 <0.33 <0.33 <0.33 3136/4133 11/9/1988 1 <1.9 <19 <1.0 <0.33 <0.33 <0.33 <0.33 <1.65 <1.65 <1.65 <1.65 <0.33 <1.65 p <0.33 <0.33 <1.65 <1.65 <0.33 <0.33 <0.33 <0.33 <0.33 <0.33 -Based Soil Remediation Goal 4.4 400 NA 3,400 6,900 NA 0.15 0.015 0.15 NA 1.5 15 0.015 460 4,600 0.15 3.6 idwater Soil Remediation Goal 5.8 270 NA 660 8.4 11 0.18 0.059 0.6 360 5.9 18 0.19 NA 340 330 56 2 0.21 57 220 .evels - Leachate Values (mg/L) NA NA 5 210 NA NA NA I NA NA NA I NA_1 NA I NA I NA 28 NA 2.1 21 21 analyzed by the State Laboratory. Sample Results representative of initial site conditions before remediation by Paragon in 1991. = Inactive Hazardous Sites Branch Soil Remediation Goals, January 2010 = Inactive Hazardous Sites Branch Soil Remediation Goals, January 2010 :)licable. practical quantitation limit. iove NCDENR Soil Action Level. ird Rifle Range and the grab sample (S-4 C-1 Grab) exceeded the leachable (extractable) value for lead. These samples are representative of berm material present on -site on October 12, 2010. riginal 100-yard and 200-yard rifle range berms before approximately 18 inches of soil was remediated by Paragon from the berms. The composite sample from the 100-yard Rifle Range exceeded the leachable (extractable) value for lead. r TABLE 2 Summary of Sediment Analytical Results r Merritt-Knightdale Development r Raleigh, Wake County, North Carolina r S&ME Project No. 4305-19-213 Analytical Method P. Semi -Volatile Organic Compounds by EPA Method 8270E (mg/Kg) Metals by EPA Method 6010D Volatile Organic Compounds by (mg/Kg) Method 8260D (mg/Kg) Analyte v � 7+ v ro ro +L 0 0 a, Lead Constituent -Specific Sample ID Date Collected N d N d N d N d d .0 V 7 w C4 00 CL SED-1 11/18/2019 <0.035 <0.041 <0.022 <0.041 <0.037 0.067 J <0.034 0.049 J 3.51 Below Laboratory Detection Limits for All Constituents SED-2 11/18/2019 0.045 J 0.048 J 0.081 J <0.043 0.057 J 0.14 J 0.064 J 0.11 J 3.32 SED-3 11/18/2019 0.068 J 0.071 J 0.10 J 0.045 J 0.083 J 0.24 J 0.13 J 0.17 J 3.81 Duplicate 2 11/18/2019 0.064 J 0.065 J 0.096 J 0.040 J 0.071 J 0.18 J 0.093 J 0.13 J 2.94 Protection of Groundwater PSRG 0.35 0.12 1.2 12 36 670 134 440 270 Constituent -Specific Residentail PSRG 1.1 0.11 1.1 11 110 480 NE 360 NE Industrial/Commercial PSRG 21 2.1 j 21 210 2,100 6,000 NE j 4,500 NE Notes: Sediment sample concentrations are reported in mg/Kg. mg/Kg - milligrams per kilogram. NE - not established. PSRG: Division of Waste Management Preliminary Soil Remediation Goals (May 2019). Concentrations shown in BOLD exceed the laboratory detection limits. J - indicates an estimated concentration above the method detection limit but below the reporting limit. < - indicates the constituent was not detected above the method detection limit. The sediment sample Duplicate 2 is a duplicate sample of the record sample SED-3. T:Nrolects\201%ENV14305-19-213 Merritt- Knightdale Development\Working-Documents\SedimenLSurface Water -and Groundwater Assessment November 2019\Tables\Tables for November 2019 Assessment.xlsx TABLE 3 Summary of Surface Water and Groundwater Analytical Results Merritt-Knightdale Development Knightdale, Wake County, North Carolina S&ME Project No. 4305-19-213 Semi -Volatile Organic Compounds Metals by EPA Method 6010D Volatile Organic Compounds by Analytical Method by EPA Method 8270E (µg/L) (µg/L) Method 8260D (µg/L) Analyte v s Lead Constituent -Specific Sample ID Date Collected SW-1 11/18/2019 <1.0 <2.4 <3.1 Below Laboratory Detection Limits for All Constituents SW-2 11/18/2019 8.2 J <2.4 <3.1 SW-3 11/18/2019 6.9 J <2.4 <3.1 Duplicate 1 11/18/2019 8.4 J <2.4 <3.1 MW-1 11/20/2019 <1.0 8.6 J <3.1 MW-2 11/20/2019 <1.0 7.7 J <3.1 MW-3 11/19/2019 <1.0 <2.4 <3.1 MW-4 11/19/2019 <1.0 <2.4 <3.1 MW-DUP 11/19/2019 <1.0 <2.4 <3.1 EB-1 11/19/2019 <1.0 <2.4 <3.1 Groundwater 21, Standards 30,000 6,000 15 Constituent -Specific Surface Water 2B Standards NE NE 81 Notes: The surface water and groundwater samples concentrations are reported in µg/L. µg/L - micrograms per liter. NE - not established. Groundwater 2L Standards - Division of Water Resources Groundwater Quality Standards (April 2013). Surface Water 2B Standards - Division of Water Resources Water Quality Standards for Surface Waters (June 2019). Concentrations shown in BOLD exceed the laboratory detection limits. J - indicates an estimated concentration above the method detection limit but below the reporting limit. < - indicates the constituent was not detected above the method detection limit. The surface water sample Duplicate 1 is a duplicate sample of the record sample SW-2. The groundwater sample MW-DUP is a duplicate sample of the record sample MW-4. TAProjectQ01MENVW303.19-213 Merritt- Knightdale Dmlopment\Working__Documents\Sediment_Surface Wat-nd Groundwater Assessment November 2019\Tables\Tables for November 2019 AssessmentAn TABLE 4 Summary of Analytical Results - June 2020 Soil Assessment Sir Walter Gun Club Knightdale, Wake County, North Carolina Brownfields Project No. 23068-19-092 S&ME Project No. 4305-19-213 Analytical Method Volatile Organic Compounds by Method 8260D (mg/Kg) Semi -Volatile Organic Compounds by EPA Method 8270E (mglKg) Lead by EPA Method 6010D (mg/Kg) Analyte d q C d '� o a. °m v O w 'v °' w C + s LL v w 'rJ + e b c `>y o `� w 0 `>y v _w w 0 `� s wO x 0 `>y 'o `� + d a o N d i n u+, d M c q + a, Lead Sample ID Sample Depth (ft-bgs) Date Collected HA-1 0-0.5 6/23/2020 <0.018 <0.00098 <0.0002 0.0067 <0.0012 <0.00030 <0.032 <0.043 <0.032 <0.037 <0.020 <0.053 <0.037 <0.17 <0.034 <0.030 <0.041 <0.033 <0.053 <0.030 <0.025 <0.043 4.87 HA-2 0-0.5 6/23/2020 0.033 <0.0011 <0.00024 <0.0011 <0.0014 <0.00035 <0.032 <0.044 <0.032 <0.038 <0.021 <0.054 <0.038 <0.17 <0.035 <0.031 <0.041 <0.033 <0.054 <0.031 <0.025 <0.044 8.78 HA-3 0-0.5 6/23/2020 0.079 1 <0.0011 <0.00023 I <0.0010 <0.0014 <0.00034 <0.032 <0.043 <0.032 <0.038 <0.020 <0.053 <0.038 <0.17 <0.034 <0.031 <0.041 I <0.033 <0.053 <0.031 <0.025 <0.043 4.41 HA-4 0-0.5 6/23/2020 0.084 <0.00079 <0.00016 <0.00074 <0.0010 <0.00024 <0.032 <0.045 <0.033 <0.039 <0.021 <0.055 <0.039 <0.18 <0.035 <0.032 <0.043 <0.034 <0.055 <0.032 <0.026 <0.045 6.15 HA-5 0-0.5 6/23/2020 <0.016 <0.00087 <0.00018 <0.00082 <0.0011 <0.00027 <0.031 <0.043 <0.031 <0.037 <0.020 <0.053 <0.037 <0.17 <0.034 <0.030 <0.040 <0.032 <0.053 <0.030 <0.025 <0.043 5.97 HA-6 0-0.5 6/23/2020 0.170 0.0039J <0.00016 <0.00072 <0.00096 <0.00024 <0.032 <0.044 <0.032 <0.038 <0.021 <0.054 <0.038 <0.17 <0.035 <0.031 <0.041 <0.033 <0.054 <0.031 <0.025 <0.044 12.2 HA-7 0-0.5 6/23/2020 0.081 <0.0012 <0.00024 0.0072 <0.0015 <0.00036 <0.033 <0.044 <0.033 <0.038 <0.021 <0.055 <0.038 <0.17 <0.035 <0.031 <0.042 <0.034 <0.055 <0.031 <0.026 <0.044 9.26 HA-8 0-0.5 6/23/2020 <0.014 <0.00076 <0.00016 0.0065 1 <0.00095 I <0.00023 <0.031 I <0.042 <0.031 I <0.037 <0.020 <0.052 <0.037 <0.17 <0.033 <0.030 <0.040 <0.032 <0.052 <0.030 <0.025 <0.042 18.4 0-0.5 6/23/2020 <0.016 I <0.00090 <0.00019 <0.00084 <0.0011 <0.00028 <0.032 <0.044 <0.032 <0.038 <0.021 <0.054 <0.038 <0.17 <0.035 <0.031 <0.042 <0.034 <0.054 <0.031 <0.025 <0.044 236 HA-9 1.0-1.5 6/23/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 18.8 HA-10 0-0.5 6/23/2020 <0.016 <0.00088 <0.00018 <0.00083 <0.0011 <0.00027 <0.032 <0.043 <0.032 <0.037 <0.020 <0.053 <0.037 <0.17 <0.034 <0.031 <0.041 <0.033 <0.053 <0.031 <0.025 <0.043 32.6 HA-11 0-0.5 6/23/2020 <0.020 <0.0011 <0.00023 <0.0011 <0.0014 <0.00035 <0.031 <0.041 <0.031 <0.036 <0.020 <0.051 <0.036 <0.16 <0.033 <0.029 <0.039 <0.032 <0.051 <0.029 <0.024 <0.041 5.56 0-0.5 6/23/2020 0.013J <0.00073 0.0045 <0.00068 <0.00091 <0.00022 I <0.033 <0.045 <0.033 <0.039 I <0.021 <0.055 <0.039 <0.18 <0.035 <0.032 <0.042 <0.034 <0.055 <0.032 <0.026 <0.045 13.4 HA-12 1.0-1.5 6/23/2020 <0.013 <0.00075 <0.00015 0.0076 <0.00094 <0.00023 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 4.69 0-0.5 6/23/2020 0.220 <0.00085 0.013 0.0073 <0.0011 <0.00026 <0.031 <0.042 <0.031 <0.036 <0.020 <0.051 <0.036 <0.16 <0.033 <0.030 <0.039 <0.032 <0.051 <0.030 <0.024 <0.042 35.4 HA-13 1.0-1.5 6/23/2020 <0.015 <0.00082 <0.00017 0.0100 <0.0010 <0.00025 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7.05 HA-14 0-0.5 6/23/2020 <0.015 <0.00086 <0.00018 <0.00080 <0.0011 <0.00026 <0.031 <0.042 <0.031 <0.036 <0.020 <0.052 <0.036 0.69J <0.033 <0.030 <0.040 <0.032 <0.052 <0.030 0.33J <0.042 45.9 HA-15 0-0.5 6/23/2020 <0.016 <0.00087 <0.00018 <0.00081 <0.0011 <0.00027 <0.036 <0.049 <0.036 <0.043 <0.023 <0.061 <0.043 <0.19 <0.039 <0.035 <0.047 <0.038 <0.061 <0.035 <0.028 <0.049 35.2 HA-16 0-0.5 6/23/2020 <0.014 <0.00076 <0.00016 <0.00071 I <0.00095 <0.00023 I <0.031 <0.043 <0.031 I <0.037 <0.020 <0.053 <0.037 <0.17 <0.034 <0.030 <0.040 <0.032 <0.053 <0.030 <0.025 <0.043 323 HA-17 0-0.5 6/23/2020 <0.015 <0.00084 0.00091J <0.00079 <0.0011 <0.00026 <0.030 <0.041 <0.030 <0.036 <0.019 <0.051 <0.036 <0.16 <0.032 <0.029 <0.039 <0.031 <0.051 <0.029 <0.024 <0.041 18.4 0-0.5 6/23/2020 <0.016 <0.00091 <0.00019 <0.00085 <0.0011 <0.00028 <0.032 <0.044 0.36 0.53 0.48 0.25 J 0.18 J 0.40 J 0.48 <0.031 0.24 J <0.034 0.17 J 0.17 J <0.026 0.34 J 14.7 HA-18 1.0-1.5 6/23/2020 NA NA NA NA NA NA <0.037 <0.051 <0.037 <0.044 <0.024 <0.063 <0.044 <0.20 <0.040 <0.036 <0.048 <0.039 <0.063 <0.036 <0.029 <0.051 21.6 HA-19 0-0.5 6/23/2020 <0.014 <0.00076 <0.00016 <0.00071 <0.00095 <0.00023 <0.031 <0.042 <0.031 <0.037 <0.020 <0.052 <0.037 0.53J <0.033 <0.030 <0.040 <0.032 <0.052 <0.030 <0.024 <0.042 11.7 HA-20 0-0.5 6/23/2020 0.077 <0.00088 0.0028 <0.00082 0.032 <0.00027 <0.032 <0.043 <0.032 <0.037 <0.020 <0.053 <0.037 1.4J <0.034 <0.030 <0.041 <0.033 <0.053 <0.030 <0.025 <0.043 274 1.0-1.5 6/23/2020 0.100 <0.0010 <0.00021 0.0037 <0.0013 <0.00031 <0.037 <0.050 <0.037 <0.043 <0.024 <0.061 <0.043 <0.20 <0.039 <0.035 <0.047 <0.038 <0.061 <0.035 <0.029 <0.050 30.5 Duplicate-1 0-0.5 6/23/2020 <0.016 <0.00088 0.0018 <0.00083 0.0027 <0.00027 <0.032 <0.043 <0.032 <0.037 <0.020 <0.053 <0.037 <0.17 <0.034 <0.031 <0.041 <0.033 <0.053 <0.031 <0.025 <0.043 310 HA-21 0-0.5 6/24/2020 <0.018 <0.0010 <0.00021 <0.00094 <0.0013 <0.00031 <0.032 <0.043 <0.032 <0.038 I <0.021 <0.054 I <0.038 0.40J <0.034 <0.031 <0.041 <0.033 <0.054 <0.031 <0.025 <0.043 8.84 Duplicate-2 0-0.5 6/24/2020 <0.018 <0.0010 <0.00021 <0.00094 <0.0013 <0.00031 <0.032 <0.043 <0.032 <0.037 <0.020 <0.053 <0.037 0.51J <0.034 <0.030 <0.041 <0.033 <0.053 <0.030 <0.025 <0.043 8.40 HA-22 0-0.5 6/24/2020 0.031 <0.00081 <0.00017 <0.00076 0.0015 <0.00025 <0.032 <0.044 <0.032 <0.038 <0.021 <0.054 <0.038 <0.17 <0.035 <0.031 <0.042 <0.034 <0.054 <0.031 <0.025 <0.044 9.60 HA-23 0-0.5 6/24/2020 <0.011 <0.00064 <0.00013 0.0014 J <0.0008 <0.00020 <0.030 <0.041 0.082 J 0.12 J 0.14 J 0.077 J 0.049 J <0.16 0.091 J <0.029 0.073 J <0.031 0.057 J 0.041 J <0.024 0.075 J 13.1 1.0-1.5 6/24/2020 0.052 <0.0044 <0.00076 1 0.0025J <0.00044 1 0.0020 <0.031 <0.042 1 <0.031 <0.037 <0.020 <0.052 <0.037 <0.17 1 <0.033 <0.030 <0.040 <0.032 <0.052 <0.030 <0.025 <0.042 NA HA-24 0-0.5 6/24/2020 <0.015 <0.00082 <0.00017 <0.00077 <0.0010 <0.00025 <0.030 <0.040 <0.030 <0.035 <0.019 <0.050 <0.035 0.38J <0.032 <0.029 <0.038 <0.031 <0.050 <0.029 <0.023 <0.040 18.2 0-0.5 6/24/2020 0.360 <0.00098 <0.00020 <0.00092 <0.0012 0.0021 <0.035 <0.048 <0.035 <0.042 <0.023 <0.059 <0.042 <0.19 <0.038 <0.034 <0.045 <0.037 <0.059 <0.034 <0.028 <0.048 11.1 HA-25 1.0-1.5 6/24/2020 0.280 <0.0010 <0.00021 <0.00096 <0.0013 <0.00032 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 16.3 0-0.5 6/24/2020 0.077 <0.00090 <0.00018 <0.00084 0.0017 <0.00028 <0.032 <0.044 <0.032 <0.038 <0.021 <0.054 <0.038 <0.17 <0.035 <0.031 <0.042 <0.033 <0.054 <0.031 <0.025 <0.044 26.5 HA-26 1.0-1.5 6/24/2020 <0.029 <0.0016 <0.00033 <0.0015 <0.0020 <0.00049 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 17.0 0-0.5 6/24/2020 0.330 <0.00097 0.0024 1 <0.00091 0.120 <0.00030 0.18 J 0.21 J 1 1.9 2.8* 3.4 1.3 1.6 0.41 J 2.1 0.054 J 2.2 0.080 J 1.0 1.1 <0.027 2.0 22.4 HA-27 1.0-1.5 6/24/2020 <0.015 <0.00084 <0.00017 <0.00079 <0.0011 <0.00026 <0.030 <0.041 0.13 J 0.17 T 0.29 J 0.098 J 0.11 J <0.16 0.13 J <0.029 0.19 J <0.031 0.086 J 0.088 J <0.024 0.17 J 7.43 0-0.5 6/24/2020 <0.016 <0.00089 <0.00018 <0.00083 <0.0011 <0.00027 7.6J 9.8J 55* 83* 110* 34 32 <6.8 55 2.5 J 60 4.2J 31* 38 <1.0 53 158 HA-28 1.0-1.5 6/24/2020 NA NA NA NA NA NA I <0.031 <0.042 0.041 J 0.053 J 0.086 J <0.052 1 <0.037 <0.17 0.041 J <0.030 0.048 J <0.032 1 <0.052 <0.030 <0.024 0.046 J 8.18 0-0.5 6/24/2020 0.130 <0.00065 <0.00013 <0.00061 <0.00082 <0.00020 <0.033 <0.044 <0.033 <0.038 <0.021 <0.055 <0.038 0.75J <0.035 <0.031 <0.042 <0.034 <0.055 <0.031 <0.026 <0.044 148 HA-29 1.0-1.5 6/24/2020 NA NA NA NA NA NA <0.035 <0.048 <0.035 <0.041 <0.023 <0.059 <0.041 <0.19 <0.038 <0.034 <0.045 <0.036 <0.059 <0.034 <0.028 <0.048 40.2 0-0.5 6/24/2020 <0.016 <0.00089 <0.00018 I <0.00083 <0.0011 <0.00027 <0.032 <0.043 I <0.032 <0.038 <0.020 <0.054 <0.038 3.3 <0.034 <0.031 <0.041 <0.033 <0.054 <0.031 <0.025 <0.043 176 HA-30 1.0-1.5 6/24/2020 NA NA NA NA NA NA <0.031 <0.042 <0.031 <0.037 <0.020 <0.052 <0.037 <0.17 <0.033 <0.030 <0.040 <0.032 <0.052 <0.030 <0.024 <0.042 18.5 BG 0-0.5 6/24/2020 <0.014 <0.00078 <0.00016 <0.00073 <0.00097 <0.00024 <0.032 <0.043 <0.032 <0.037 <0.020 <0.053 <0.037 <0.17 <0.034 <0.030 <0.041 <0.033 <0.053 <0.030 <0.025 <0.043 9.51 (Background) 1.0-1.5 6/24/2020 <0.012 <0.00067 0.0016 <0.00062 <0.00084 I <0.00020 I <0.032 <0.043 <0.032 <0.037 <0.020 I <0.053 I <0.037 <0.17 <0.034 <0.031 <0.041 I <0.033 I <0.053 <0.031 <0.025 <0.043 6.69 Protection of Groundwater PSRG 25 17 1.24 0.025 1.5 8.3 16 1,300 0.35 0.12 1.2 15,600 12 120 36 10 670 110 3.9 134 0.34 440 250 Residentail PSRG 12,000 5,500 NE 58 1,200 990 720 3,600 1.1 0.11 1.1 NE 11 51,000 110 15 480 480 1.1 NE 3,800 360 400 Industrial/Commercial PSRG 140,000 40,000 NE 650 7,300 9,700 9,000 45,000 21 2.1 21 NE 210 660,000 2,100 210 6,000 6,000 21 NE 49,000 4,500 800 Notes: Soil sample concentrations are reported in mg/Kg. mg/Kg - milligrams per kilogram. NA - not analyzed. NE - not established. BG - Sample ID for background samples += Polycyclic aromatic hydrocarbons (PAHs) J - indicates an estimated concentration above the method detection limit but below the reporting limit. <- indicates the constituent was not detected above the method detection limit. The soil sample Duplicate-1 is a duplicate sample of the record sample HA-20. The soil sample Duplicate-2 is a duplicate sample of the record sample HA-21. PSRG: Division of Waste Management Preliminary Soil Remediation Goals Only 2020). Concentrations shown in BOLD exceed the laboratory detection limits. Concentrations shown with an underline exceed the Protection of Groundwater PSRG. Concentrations that exceed the Residential Health Based PSRG are shown with highlighted value. Concentrations shown with an asterisk* exceed the Industrial/Commercial Health Based PSRG. Tables 5 6 Soil PssessmentAn TABLES Summary of Analytical Results - November 2020 Soil Assessment Sir Walter Gun Club Knightdale, Wake County, North Carolina Brownfields Project No. 23068-19-092 S&ME Project No. 4305-19-213 Volatile Organic Compounds by Lead Lead by EPA Method 6010D Analytical Method Semi -Volatile Organic Compounds by EPA Method 8270E (mg/Kg) Method 8260D (mg/Kg) + + b + + Analyte + d W ar v C. W as ,��. C u W + 0 r w r ,� a Sample C y + sbi G w v a .0 X m + v b y + a Lead Date c Sample ID Depth Collected a m g a a s ,* y r + (ft-bgs) a m o N 6 N 0 N 0 N 0 N 0 N 9 y 6 m y a O O b N HA-31 0-0.5 11/17/2020 0.036 <0.00018 0.0047 <0.034 <0.031 <0.042 <0.031 <0.037 <0.020 <0.052 <0.037 1.4 J <0.039 <0.033 <0.057 <0.040 <0.032 <0.052 <0.030 <0.042 695 1.0-1.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 6.34 HA-32 0-0.5 11/17/2020 0.035 <0.00018 <0.0011 <0.034 <0.031 <0.042 <0.031 <0.037 <0.037 <0.052 <0.037 <0.17 <0.039 <0.033 <0.056 <0.040 <0.032 <0.052 <0.030 <0.042 14.2 HA-33 0-0.5 11/17/2020 <0.013 <0.00015 <0.00092 <0.035 <0.032 <0.043 <0.032 <0.038 <0.021 <0.054 <0.038 0.43 J <0.040 <0.034 <0.058 <0.041 <0.033 <0.054 <0.031 <0.043 13.7 HA-34 0-0.5 11/17/2020 <0.012 <0.00014 <0.00084 <0.036 <0.032 <0.044 <0.032 <0.032 <0.021 <0.054 <0.038 <0.17 <0.040 <0.034 <0.058 <0.041 <0.033 <0.054 <0.031 <0.044 7.07 HA-35 0-0.5 11/17/2020 <0.018 0.0008 J <0.0012 <0.043 <0.039 <0.053 0.21 J 0.32 0.31 J 0.19 J 0.16 J 0.44 J <0.048 0.23 J <0.071 0.29 J <0.040 0.35 J 0.18 J 0.23 J 38.4 1.0-1.5 11/17/2020 NA NA NA <0.042 <0.028 <0.038 <0.028 <0.033 <0.018 <0.047 <0.033 <0.15 <0.035 <0.030 <0.069 <0.036 <0.029 <0.047 <0.027 <0.038 16.2 HA-36 0-0.5 11/17/2020 <0.012 <0.00014 <0.00087 70.035 <0.031 <0.042 0.89 J 0.13 L 0.13 J 0.083 J 0.066 J <0.17 <0.039 0.097 J <0.057 0.11 J <0.032 0.23 J 0.069 J 0.10 J 12.0 1.0-1.5 11/17/2020 NA NA NA <0.037 <0.028 <0.038 <0.028 <0.033 <0.018 <0.047 <0.033 <0.15 <0.035 <0.030 <0.061 <0.036 <0.029 <0.047 <0.027 <0.038 7.86 HA-37 0-0.5 11/17/2020 <0.016 0.00058 J <0.0011 <0.69 2.2 J 2.3 J 25* 37* 39* 32 15 <3.3 <0.78 30 <1.1 21 0.90 J 22* 13 20 20.0 1.0-1.5 11/17/2020 NA NA NA <0.034 <0.028 <0.038 0.17 J 0.26 T 0.24 J 0.19 J 0.070 J <0.15 <0.035 0.22 J 0.20 J 0.18 J <0.029 0.25 J 0.097 J 0.22 J 6.45 HA-38 0-0.5 11/17/2020 <0.014 0.0007 J 0.0066 <0.036 0.044 J 0.056 J 0.38 0.61 0.63 0.59 0.23 J 1.6 J 0.072 J 0.42 <0.060 0.36 J <0.034 0.56 0.27 J 0.30 J 48.5 1.0-1.5 11/17/2020 NA NA NA <0.033 <0.028 <0.038 <0.028 <0.033 <0.018 <0.047 <0.033 <0.15 <0.035 <0.030 0.16 J <0.036 <0.029 0.16 J <0.027 <0.038 4.91 HA-39 0-0.5 11/17/2020 <0.012 <0.00014 <0.00087 <0.033 <0.030 <0.041 <0.030 <0.036 <0.019 <0.051 <0.036 <0.16 <0.038 <0.032 <0.055 <0.039 <0.031 <0.051 <0.029 <0.041 9.46 HA-40 0-0.5 11/17/2020 1 0.032 0.0021 <0.00087 I <0.035 <0.031 <0.043 <0.031 I <0.037 <0.020 I <0.053 <0.037 I <0.17 <0.039 <0.034 <0.057 I <0.040 <0.032 <0.053 <0.030 0.043 244 1.0-1.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 14.5 HA-41 0-0.5 11/17/2020 0.080 0.0056 0.0047 <0.036 <0.032 <0.044 <0.032 <0.038 <0.021 <0.054 <0.038 0.49 J <0.040 <0.035 <0.059 <0.042 <0.034 <0.054 <0.031 <0.044 65.6 1.0-1.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 17.0 HA-42 0-0.5 11/17/2020 0.017 J 0.011 <0.00091 <0.036 <0.032 <0.044 <0.032 <0.038 <0.021 <0.054 <0.038 0.20 J <0.040 <0.035 <0.059 <0.042 <0.034 <0.054 <0.031 <0.044 276 1.0-1.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 21.7 HA-43 0-0.5 11/17/2020 0.036 0.00065 J 0.14 <0.042 <0.031 <0.042 <0.031 <0.037 <0.020 <0.052 <0.037 0.25 J 1 <0.039 <0.033 <0.057 <0.040 <0.032 <0.052 <0.030 <0.042 23.5 HA-44 0-0.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 487 1.0-1.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 23.8 HA-45 0-0.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 128 1.0-1.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 22.0 HA-46 0-0.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 535 1.0-1.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7.38 HA-47 0-0.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA HA-48 0-0.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 207 1.0-1.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 6.30 HA-49 0-0.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA HA-50 0-0.5 11/17/2020 NA NA NA 0.067J <0.028 <0.038 <0.028 <0.033 <0.018 <0.047 <0.033 <0.15 <0.035 <0.030 <0.051 <0.036 <0.029 <0.047 <0.027 <0.038 10.6 HA-51 0-0.5 11/17/2020 NA NA NA <0.031 <0.028 <0.038 <0.028 <0.033 <0.018 <0.047 <0.033 <0.15 <0.035 <0.030 <0.051 <0.036 <0.029 <0.047 <0.027 <0.038 420 1.0-1.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 21.1 DUP-11-17-20 0-0.5 11/17/2020 0.10 0.0048 0.00076 <0.034 <0.031 <0.042 <0.031 <0.036 <0.020 <0.052 <0.036 0.90 J <0.039 <0.033 <0.056 <0.040 <0.032 <0.052 <0.030 <0.042 251 1.0-1.5 11/17/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 43.8 Protection of Groundwater PSRG 25 1.24 1.5 NE 16 1,300 0.35 0.12 1.2 15,600 12 120 NE 36 0.38 670 110 3.9 134 440 250 Residentail PSRG 12,000 NE 1,200 NE 720 3,600 1.1 0.11 1.1 NE 11 51,000 NE 110 0.11 480 480 1.1 NE 360 400 Industrial/Commercial PSRG 140,000 NE 7,300 NE 9,000 45,000 21 2.1 21 NE 210 660,000 NE 2,100 2.1 6,000 6,000 1 21 NE 4,500 800 Notes: Soil sample concentrations are reported in mg/Kg. mg/Kg - milligrams per kilogram. NA - not analyzed. NE - not established. + = Polycyclic aromatic hydrocarbons (PAHs) J - indicates an estimated concentration above the method detection limit but below the reporting limit. < - indicates the constituent was not detected above the method detection limit. The soil sample DUP-11-17-20 is a duplicate sample of the record sample HA-43. PSRG: Division of Waste Management Preliminary Soil Remediation Goals (July 2020). Concentrations shown in BOLD exceed the laboratory detection limits. Concentrations shown with an underline exceed the Protection of Groundwater PSRG. Concentrations that exceed the Residential Health Based PSRG are shown with highlighted value. Concentrations shown with an asterisk* exceed the Industrial/Commercial Health Based PSRG. Tables 4 5 6 Soil AssessmentAv TABLE 6 Summary of Soil TCLP Analytical Results - December 2020 I I' Sir Walter Gun Club Knightdale, Wake County, North Carolina Brownfields Project No. 23068-19-092 S&ME Project No. 4305-19-213 Analytical Method 110 Lead by EPA Method 6010D (mg/Kg) Lead by EPA Method 6010D (mg/L) Analyte Total Lead Extractable Lead - TCLP Sample ID Sample Depth (ft-bgs) Date Collected HA-31 0-0.5 11/17/2020 695 10.7 HA-40 0-0.5 11/17/2020 244 2.00 HA-42 0-0.5 11/17/2020 276 1.84 HA-44 0-0.5 11/17/2020 487 4.35 HA-46 0-0.5 11/17/2020 535 5.72 HA-51 0-0.5 11/17/2020 420 2.74 Protection of Groundwater PSRG 250 NE Residentail PSRG 400 NE Industrial/Commercial PSRG 800 NE RCRA Regulatory Concentration for Characteristics Hazardous Waste by TCLP NE 5 Notes: TCLP - Toxicity Characteristic Leaching Procedure method mg/Kg - milligrams per kilogram mg/L - milligrams per liter NA - not analyzed. NE - not established. Tables 4 5 6 Soil Assessment.xlsx TABLE 6 Summary of Soil TCLP Analytical Results - December 2020 I I' Sir Walter Gun Club Knightdale, Wake County, North Carolina Brownfields Project No. 23068-19-092 S&ME Project No. 4305-19-213 Analytical Method 110 Lead by EPA Method 6010D (mg/Kg) Lead by EPA Method 6010D (mg/L) Analyte Total Lead Extractable Lead - TCLP Sample ID Sample Depth (ft-bgs) Date Collected HA-31 0-0.5 11/17/2020 695 10.7 HA-40 0-0.5 11/17/2020 244 2.00 HA-42 0-0.5 11/17/2020 276 1.84 HA-44 0-0.5 11/17/2020 487 4.35 HA-46 0-0.5 11/17/2020 535 5.72 HA-51 0-0.5 11/17/2020 420 2.74 Protection of Groundwater PSRG 250 NE Residentail PSRG 400 NE Industrial/Commercial PSRG 800 NE RCRA Regulatory Concentration for Characteristics Hazardous Waste by TCLP NE 5 Notes: TCLP - Toxicity Characteristic Leaching Procedure method mg/Kg - milligrams per kilogram mg/L - milligrams per liter NA - not analyzed. NE - not established. Tables 4 5 6 Soil Assessment.xlsx -a Environmental Management Plan (EMP) for Site Development Sir Walter Gun Club APPENDIX I Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 List of Amendments to Brownfields Environmental Management Plan Environmental Management Plan (EMP) for Site Development Sir Walter Gun Club III Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 APPENDIX I LIST of AMENDMENTS to BROWNFIELDS ENVIRONMENTAL MANAGEMENT PLAN Amendments must have the concurrence of both the Prospective Developer (Merritt-MWl, LLC) and the North Carolina Brownfields Program prior to implementation of each amendment. AMENDMENT EFFECTIVE SUBJECT NUMBER DATE Environmental Management Plan (EMP) for Site Development Sir Walter Gun Club III Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 APPENDIX II Remedial Action Plan 609 PREPARED FOR: Merritt - MW1, LLC 2066 Lord Baltimore Drive Baltimore, Maryland 21244-2501 PREPAREF S&ME, Inc. 3201 Spring Forest Road Raleigh, NC 27616 Corporate Registration for Licensing of NC Geologists No. C-145 NC Engineering Firm No. F-0176 January 15, 2021 -a January 15, 2021 North Carolina Department of Environmental Quality Division of Waste Management, Brownfields Program 217 West Jones Street Raleigh, North Carolina 27605 Attention: Mr. Brad Atkinson Brownfields Project Manager Reference: Remedial Action Plan Hinton Oaks Blvd., Knightdale, North Carolina Brownfields Project Name: Sir Walter Gun Club Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 Dear Mr. Atkinson: via email: brad.atkinson@ncdenr.gov S&ME, Inc. (S&ME), on behalf of the project developer Merritt — MW1, LLC, is submitting this Remedial Action Plan to address lead impacted soil handling prior to site development activities for five flex space buildings, along with associated parking lots, access drives and two stormwater ponds. Site development is anticipated to begin March 1, 2020. If you have any questions about the EMP for the proposed site redevelopment, please contact the undersigned. Sincerely, 5&ME, Inc. Thomas P. Raymond, P.E. Senior Engineer traymond@smeinc.com Enclosure: Remedial Action Plan, dated January 15, 2021 Samuel P. Watts, PG Senior Project Manager swatts@smeinc.com S&ME, Inc. 13201 Spring Forest Road I Raleigh, NC 27616 1 p 919.872.2660 1 www.smeinc.com Remedial Action Plan Hinton Oaks Blvd., Knightdale, North Carolina Brownfields Project Name: Sir Walter Gun Club Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 CERTIFICATION Remedial Action Plan Hinton Oaks Blvd., Knightdale, North Carolina Brownfields Project Name: Sir Walter Gun Club Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 I, Thomas P. Raymond, a Professional Engineer for S&ME, Inc., do hereby certify this Remedial Action Plan was prepared by me or under my direct supervision. CrAsr,�'��®�' ,e C............ SEAL 18760 • F' P. Raymond, P.E., P.M.P Senior Engineer ,ed Engineer No. 18760 S&ME, Inc. is licensed to practice engineering in North Carolina. The firm's license number is C-145. S&ME, Inc. is licensed to practice geology in North Carolina. The firm's license number is F-0176. January 15, 2021 Remedial Action Plan Hinton Oaks Blvd., Knightdale, North Carolina Brownfields Project Name: Sir Walter Gun Club I I I Brownfields Project No.: 23068-19-092 E S&ME Project No. 4305-19-213 Table of Contents CERTIFICATION...................................................................................................................................................... ii 1.0 Introduction.......................................................................................................................1 2.0 Soil Areas Requiring Treatment....................................................................................1 2.1 Soil Exceeding 5 mg/L by TCLP........................................................................................................1 2.2 Soil Exceeding Residential Lead PSRG..........................................................................................2 3.0 Soil Treatment Product - EnviroBlend°.......................................................................2 4.0 Soil Treatment Process with EnviroBlend®................................................................2 5.0 Handling & Processing Soils Exceeding Residential Lead PSRG ..........................3 6.0 Confirmation Soil Sampling...........................................................................................3 6.1 Soil Treated with EnviroBlend°.......................................................................................................3 6.2 Bottoms of Excavated Areas...............................................................................................................4 6.3 Lateral Extent........................................................................................................................................4 7.0 Reporting............................................................................................................................5 Appendices Appendix I — Figures Figure Al — Soil Treatment & Placement Exhibit Figure A2 — Preliminary Site Development Plan with Soil Treatment & Placement Areas Appendix II — Premier—EnviroBlend Application and Handling Information January 15, 2021 Remedial Action Plan Hinton Oaks Blvd., Knightdale, North Carolina • Brownfields Project Name: Sir Walter Gun Club 111 Brownfields Project No.: 23068-19-092 E S&ME Project No. 4305-19-213 1.0 Introduction S&ME, Inc. (S&ME) on behalf of project developer Merritt — MW1, LLC (Merritt) has prepared this Remedial Action Plan for the former Sir Walter Gun Club (Brownfields Project No. 23068-19-092). The purpose of this Remedial Action Plan is to provide the process for handling and treating soils impacted with lead at levels above 5 milligrams per liter (mg/L) for soils analyzed by the Toxicity Characteristic Leaching Procedure (TCLP). This Appendix II also provides procedures for confirming adequate treatment of soils, and confirmation soil sampling for the removal of lead impacted soils above 5 mg/L by TCLP from treated soil areas, and handling and placement of lead impacted soil above NCDEQ's Residential Preliminary Soil Remediation Goal (PSRG) for lead of 400 milligrams per kilogram (mg/kg). Where applicable, the procedures in EMP Appendix II were prepared in general accordance with the NCDEQ, Division of Waste Management (DWM), Inactive Hazardous Sites Branch (IHSB), Guidelines for Assessment and Cleanup of Contaminated Sites, January 2020, Version 2 (Guidelines). Prior to preparing this Remedial Action Plan, S&ME reviewed the findings of previous assessments, conducted at the subject site, and documented in by the following reports. Memorandum — Sir Walter Gun Club, dated January 31, 1989, prepared by Stan Atwood, North Carolina Department of Environmental and Natural Resources, Division of Waste Management, Superfund Branch Removal of Lead Contaminants from the Soil on the Silver Plantations, dated March 10, 1992, prepared by Paragon Environmental Group Reconnaissance Investigation Results, Former Sir Walter Gun Club Site, Knightdale North Carolina, dated February 14, 2013, prepared by AMEC Environment & Infrastructure, Inc. Findings of Limited Soil Assessment - Abandoned Rifle Range Berms, dated November 18, 2010, prepared by S&ME, Inc. Additional Soil Testing - Abandoned Rifle Range Berms, dated January 4, 2011, prepared by S&ME, Inc. Phase I Environmental Site Assessment, Multiple Parcels- Intersection of Hinton Oaks Blvd. and Knightdale Blvd., dated November 1, 2019, prepared by S&ME, Inc. ♦ Sediment, Surface Water, and Groundwater Assessment, dated February 26, 2020, prepared by S&ME, Inc. ♦ Limited Soil Assessment, dated August 4, 2020, prepared by S&ME, Inc. ♦ Additional Soil Assessment Report, dated December 11, 2020, prepared by S&ME, Inc. 2.0 Soil Areas Requiring Treatment 2.1 Soil Exceeding 5 mg/L by TCLP Lead impacted soils exceeding 5 mg/L by TCLP have been identified at the following on -site locations (Figure All): • 100-Yard Impact Berm • 200-Yard Impact Berm and soil in front of the berm in the area of soil boring HA-31 • Side Berm • Area of soil boring HA-46 The estimated total volume from these four areas is approximately 1,100 cubic yards (CY). January 15, 2021 Remedial Action Plan Hinton Oaks Blvd., Knightdale, North Carolina Brownfields Project Name: Sir Walter Gun Club 111 Brownfields Project No.: 23068-19-092 E S&ME Project No. 4305-19-213 2.2 Soil Exceeding Residential Lead PSRG The areas impacted with lead exceeding the Residential PSRG level of 400 mg/kg are depicted on Figure Al. This soil volume ranges from approximately 2,300 CY to 3,400 CY. The variability of volume is based upon whether one foot of soil is removed, or 1.5 feet of soil is removed from over the affected areas. The final excavation depth in these areas will be determined by confirmation soil sampling, as described in Section 6.0. 3.0 Soil Treatment Product - EnviroBlend° EnviroBlend will be used to stabilize lead impacted soils above 5 mg/L by TCLP. EnviroBlend, a phosphate stabilizing reagent, is manufactured by Premier Magnesia, LLC (Premier) of Wayne, PA (https://www.enviroblend.com/Default.as-xx). EnviroBlend stabilizes metals regulating pH, forming insoluble compounds that will not leach into the environment. EnviroBlend is delivered to the site in bulk or in 2,000-pound super sacks. See the attached application and handling information from Premier. 4.0 Soil Treatment Process with EnviroBlend® Prior to on -site soil excavation and treatment, the environmental engineer, or representative, will collect soil samples from lead impacted soils above 5 mg/L by TCLP and send to Premier's laboratory for treatability testing with EnviroBlend. The lab will conduct testing for lead by TCLP before and after treatment. Premier will provide a report with a recommended mix ratio of EnviroBlend with soil to achieve and maintain lead in soils at levels well below 5 mg/L TCLP. Typical mix ratios of EnviroBlend with soil range from 2% to 4% by weight. For example, 2 to 4 tons of EnviroBlend will be mixed with 100 tons of soil to achieve proper treatment. The environmental engineer, or representative, will mark out the locations of the lead impacted soils above 5 mg/L by TCLP with flags or stakes. A contractor will conduct the following on -site soil treatment process: • Soil with lead impacted above 5 mg/L by TCLP (approx. 1,100 CY) will incrementally be excavated and treated in place with EnviroBlend and/or relocated to the on -site treatment and placement area (see Figure Al). • As needed, objects greater than 6-inches diameter may be removed before treatment. These removed objects may be rocks, large vegetation or debris that will be properly disposed or recycled at off -site facilities. • As soil is brought to the treatment area, or treatment is conducted in the current soil locations, soil will be treated in batches to ensure the proper mix ratio is achieved (2% to 4% EnviroBlend with soil) and is thoroughly mixed. The contractor may use an agricultural spreader, disc tiller, auger, excavation equipment or other mixing equipment. • Before final placement and compaction, the environmental engineer will conduct testing to document proper treatment of lead impacted soil. This testing procedure is presented below. January 15, 2021 Remedial Action Plan Hinton Oaks Blvd., Knightdale, North Carolina Brownfields Project Name: Sir Walter Gun Club I I I Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 • Following approval by the environmental engineer, the contractor will place and compact the approved treated soil in lifts and compact in accordance with project compaction specifications in the placement area designated by the environmental engineer. This area will be covered with engineered backfill and compacted per specifications with installation of a paved parking lot at the surface. If laboratory TCLP results show treated soil at greater than 1 mg/L TCLP for lead, that batch of treated soil will be treated again and retested by the environmental engineer. This cycle will be performed until the soil batch produces TCLP results less than or equal to 1 mg/L TCLP for lead. After documentation of proper treatment, the soil will be placed and compacted as presented above. 5.0 Handling & Processing Soils Exceeding Residential Lead PSRG Figure Al shows the areas impacted with lead exceeding the Residential PSRG level of 400 mg/kg. This soil volume ranges from approximately 2,300 CY to 3,400 CY. The variability of volume is based upon whether one foot of soil is removed, or 1.5 feet of soil is removed from over the affected areas. The environmental engineer, or representative, will mark out the locations of the lead impacted soils above 400 mg/kg with flags or stakes. A contractor will conduct the following on -site soil treatment process: Soil with lead impacted above 400 mg/kg (approx. 2,300 CY to 3,400 CY) will be excavated, relocated, placed and compacted in the selected on -site placement area (see Figures Al and A2). This area will be covered with a geotextile and covered with engineered backfill, compacted per specifications, and covered with a paved parking lot at the surface. • The excavation bottoms from where soil was removed will be sampled by the environmental engineer, or representative, to confirm whether lead impacted soil above 400 mg/kg has been removed. Up to one foot of soil will be removed initially from most of the impacted areas, and the excavation bottoms sampled for lead. Some areas will be excavated to 1.5 feet, where previous sampling data showed lead above 400 mg/kg. If excavation bottom soil samples show lead results above 400 mg/kg, additional soil will be excavated and removed and the soil bottom resampled. This process will continue until excavation bottom soil samples produce results below 400 mg/kg for lead. See below for excavation bottom soil sampling procedures. 6.0 Confirmation Soil Sampling 6.1 Soil Treated with EnviroBlend° Soils with lead at levels above 5 mg/L TCLP that have been treated with EnviroBlend will be sampled and analyzed by a NC certified laboratory for concentrations of lead by the TCLP extraction EPA Method 1311 and SW-846 Method 6010C. The treated soil sampling procedure is as follows: Treated soil will be segmented into approximate 50 CY piles or areas. Each segment will be dimensionally flagged in the field and named (e.g. "Pile 1"). January 15, 2021 Remedial Action Plan Hinton Oaks Blvd., Knightdale, North Carolina Brownfields Project Name: Sir Walter Gun Club I I I Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 • Two composited samples will be collected from each segmented soil volume. Each composite sample will be collected with a decontaminated sampling tool (e.g. hand auger or trowel). Each composite sample will be comprised from the collection of at least four samples within one-half of the segmented soil volume evenly spread across the area and from within the depth of the treated soil volume. Two individual composited soil samples, each from four discreet sample locations (total of eight soil aliquots) will be submitted for laboratory analysis. The soil samples will be named according to the soil segment name (e.g. "Pile 1 S1", "Pile 1 S2"). • If laboratory TCLP results show treated soil at greater than 1 mg/L TCLP for lead, that batch of treated soil will be treated again, resampled and retested per the procedure presented above. This cycle will be performed until the soil batch produces TCLP results less than or equal to 1 mg/L TCLP for lead. After documentation of proper treatment, the soil will be placed and compacted as presented above. 6.2 Bottoms of Excavated Areas Soil samples will be collected from the bottoms of excavated areas and analyzed for total lead by SW-846 Method 6010C. Soil sampling procedures are as follows: Design a surface sampling grid over the excavated area(s). Sampling grids should be no more than 25 feet by 25 feet. Soil samples will be collected from 0 to 6-inches from ground surface from excavation bottom areas. Five individual evenly distributed samples will be collected with a decontaminated sampling tool (e.g. hand auger or trowel) and formed into one composite soil sample representing the 25 feet by 25 feet area. Each area will be dimensionally flagged in the field and named (e.g. "Area 1A"). The soil samples will be named according to the soil area name (e.g. "Area 1A SV, "Area 1A S2"). If laboratory results show lead in soil at greater than 400 mg/kg, that area will be excavated up to 6- inches deeper and resampled in accordance with the procedure above. This cycle will be performed until the excavated bottom soil samples produce total lead results less than or equal to 400 mg/kg. 6.3 Lateral Extent Post -excavation soil sampling and analyses will be needed to demonstrate compliance with remediation goals. Confirmation sampling will be conducted to demonstrate that the lateral extent of contaminants to meet applicable remedial goals or acceptable risk for the desired land use. Confirmation samples should be analyzed for total lead by SW-846 Method 6010C. Soil sampling procedures are as follows: Sidewalls of the lateral extent of the excavation will be sampled. If there are several excavations, then a separate set of samples is required from each excavation. At minimum, one sample shall be collected from each sidewall of a four-sided excavation. For larger excavations, five individual evenly distributed samples will be collected for every 25 linear feet of excavation sidewall. Samples will be collected with a decontaminated sampling tool (e.g. hand auger or trowel) and formed into one composite soil sample representing the 25 linear feet of sidewall. At each sample location, collect a sample from 0-3 inches into the base or sidewall. Each linear segment will be flagged in the field and named (e.g. "Segment 1A"). The soil samples will be named according to the soil segment name (e.g. "Segment 1A S1", "Segment 1A S2"). January 15, 2021 4 Remedial Action Plan Hinton Oaks Blvd., Knightdale, North Carolina Brownfields Project Name: Sir Walter Gun Club I I I Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 • If laboratory results show lead in soil at greater than 400 mg/kg, that area will be excavated laterally and resampled in accordance with the procedure above. This cycle will be performed until the excavated bottom soil samples produce total lead results less than or equal to 400 mg/kg. 7.0 Reporting Documentation of compliance with the EMP and soil treatment, handling and confirmation sampling will be provided following completion of the above scope of work. Documentation will be a letter report including the flowing information: • Description of excavation procedures noting the condition of the soil encountered and the dimensions of the excavation(s). • Documentation of the volume of soil excavated. • Details of the treated soil process. • The excavation and placement procedures documenting the final placement area of lead impacted soil. • The field and laboratory methods used for the treated soil and excavation bottom and lateral confirmation sampling. • Documentation of confirmation soil sampling, including location and laboratory analysis of confirmation soil samples. Tabulation of the laboratory analytical results compared to applicable screening levels and regulatory standards, with figures showing sample locations and analytical results. • Appendices: field logs, photographic logs and laboratory analytical reports and chains -of -custody. January 15, 2021 Appendices Appendix I - Figures [ l .. .. i. .. U MW-1 m - ar impactBerm - Samples 5-4 C-1, 5-4 C-2, 5-4 C-3, 5-4 C-4, S-6 C-1, S-6 C-2, S-6 C-3, S-6-C4 were collected from this berm. I `tlA�, - Depictedarea of fillp acemen assumes fill u+ill be nlaGe l foot thick layer. Specific area and depth of fill will be determined after DEVELOPER DOES NOT IAITFNr) To rSF11Fl ()P LOT 3A i final sit development dasign. — all n : W-Ilk I m Q HA=10 . d►, �~? Stockpiled Clay �� -. ", �" �i p - - - Target Debrisr� ... z HA-14 jW 0 H Soil in the soil treatment location shall 1��, , . - ` ' �`� HA 12 HA_13 HA 44 1.O- ° t a a� = z e stockpiled In accordance with a I�aF3z r�, s Hi h House g MW-3 field -located after initial site clearing. s yr' HA-1�7 HA-T8 FIA 45 7a 1 '''wry HA-23 FIA=24 rtw=�r Trap House +' 3 100-Yard Impact Berm (2010) HA-22 HA-35 - HA 30 Samples S-1 C-1, S-1 C-2, 5-1 C-3, S-1 C-4, 2� HA-Y1 FA-34 S-2 C-1, S-2 C-2, S-2 C-3, 5-2 C-4, r. x S-3 C-1, S-3 C-2, S-3 C-3, S-3-C4 were _ TM1 collected from this berm. HA-39 ❑w Ouse Soil Sample (June 2020 & Oct 2020) Stream HA 51 1 " = 200 In Less than PSRGs Full Project Site AREA 2 Side Berm ,ee. Plond ■ RL , xcee s s DATE: _ HA-2S l Not Anal zed 1�JRange - - 20 REFERENCE: Rifle Range , + _ Soil With Lead � 5 mglL TCLP Skeet and Trap Field __? ^� PROJECT NUMBER GIS BASE LAYERS WERE E)RTWNED FReM T-1 IE: 2017 Ne8NEIVAP AERIAL eRTI 18 LAYER. STREAM AND POND LOCATIONS PROVIDED BY WITHERS RAVE NEL ON 3/2;ffl. , Soil Exceeding PSRGs — 4305-19-213 .� ;Proposed Fill REPORT FROM S. & ME DATED JAN.4, 2011. THIS MAP 15 FOR INFORMATIONAL PURPOSES `• — S&ME Sample Location (Nov. 2019) -----' Placement Location FIGURE Np. ONLY. ALL FEATURE LOCATIONS DISPLAYED ARE APPROXIMATED. THEY ARE NOT BASED - -+ ON CIVIL SURVEY INFORMATION, UNLESS STATED OTHERWISE. b y 200 400 .. Monitoring Well SampleAl n * ,.1$F Sedimenv Surface Water Sample -----------------------------1 1 `l 1 1 II l 1 I I I , I , / fl \\ \ \ n\\ CROSS ACCESS EASEMENT( SHEET C4.1\ \ \ _ �T J�USSM,PG,5, \ ( \ I \ / -I—__= _..--curl—,��� z\— \\ \ \/\�, \� \\\ my \ DRAINAGE EASEMENT' } \ BUILDINGA1 1 / JI BUILDING A2 I i — ` J ` �. A _ \ ? � 4—L 31,20DSF ( 28,811 SIF _ ^�` ASS 1 "— ONE STORY 1 ) / ONE STORY \ — ` �' \ I 1G,9n ' S \ \ j FIFE : 288 ( FIFE: 290 1111�1-A \1. —�zo'DR'uc1E1nsEMETNT2tl D' NNAGE EASEMENT \\\V \ \\ 2\\ 4 G 17 DRANAGE EASEMENT \ \ \ \ IIN It I �L � `1%_ _��,�<�' a � Ivy v� 4' — {' - f �✓/I I �,n� wv V 1 v \\ V )A( ( t \ \VAVA V A sa PueuCACCESSESMTf r I _ v -A� r / / // / /�A l \ \ > \1 \ ANDCORBSE r `=// \ \\ \ �// //,/,�/// \ 1 \` \ L \\ \ h \ BMM10FG7soI\ Ci4 \ / / \., `\ zrs— \ti I \ / / - ---__ i� \ \\ l (� r \\\ 1 V A V A\V A �� ! s2 • - - l I 1 —_ Ex wETurvosln� — A ^ \ \____ 275 � — a r— i\ \ / II .11411 ——�— �.11 / /t // / / l� \ r�- �I #Li��'�� � \,. 4— r� � \ 1 STDALE SANITARY SEWER EASEMENT \ 1 \ \ ( .1. \ \ i .. 5 \— '-\ �: ,�. "\Eq \l \ :.,: I \ \\\ \\ \ \ \ l _ _ — _ \ ' J` \ \( v ——��✓( `�._•. \ \ I l l 1 \ \ BM zoos Fc 2415 \\ \ � , � _ ,� � � \ `- ,�—•��.�_,__ �-, ,ate/��%~\;\ ;' , f \ ' yam' `i,Wg1\\\ - l �'1 \ \ \ J) !i/i \ ♦ _ 1, \ 56BUFFER\\�C�`\� ' � I \\II \ \ \ / // _ �� \ \ 1 \ VII}1 11\ �1l\ `1 ' \� 50'BUFFER�\\ 11111 I I I II I \ \v, i l ING55, SF oNE FIFE zso � _ � � \\ \ \\ \ \ \ \� 1 l \ \ \ � \ � � � \ t \ A"\ - 1 wETUNos lrrFt' A- '\ BMPMAINTENANCEEASEMENT Ik-BMZD15�,3`1 -- A--\ 4c j� BUILDING B2 ,\ \ \ \\ t / 71,750 SIF \ .Y 1 � — I C I _ _, 1 I / I / I j I / 1 I 1 I 1 1 1 I 1 I 1 I 1 I I I 1 I 1 \ I \ 1 r) 1 I I I 1 I 1 I I I 1 , 1 �C/) CIO Z W O Q U LU W Z G LU Qj p U ca LU � x� UJ Z LU '' m I— N Q O Z � O O W U _ fY 0— IH``�"C A \\� ��' �\ Sob N. D-1 By \ Dale Designer �+- BUILDING 81 84,700 SF ONE STORY ter. FFE'. 296 SWE PROJECT NO. 4305-19-213 'IJJ- �\- ,,; s '- PROPOSED SOIL PROPOSED FILL 'I� ; y--'' TREATMENT LOCATION PLACEMENT LOCATION ---------------------------- �Ex wETL,wosTo sE lM`Ac1Eo Soil in the soil treatment location shall be Depicted area of fill placement assumes fill will be stockpiled in accordance with the approved placed in a 5 foot thick layer. Speck area and Brownfields Environmental Management depth of fill placement will be determined after final \ EMP . Plan \ PExact location shall be field- ( ) site development design. cRnRNlcscALE FIGURE \ located after initial site clearing. mch -100 FG A2 Appendix II - Premier-EnviroBlend Application and Handling Information EnviroBlend Metal Waste Treatment by Premier Magnesia, LLC EnviroBlend° Application and Handling EnviroBlend° Application EnviroBlend® is a dry granular or milled material that can be purchased in 2000# Supersacks or bulk. The single consideration with treatment is making sure product is homogeneously mixed within the matrix (soil, waste, etc.). There is no preferred method for mixing. Generally, clients utilize excavators, track hoes, backhoes, rotary -head mixers, pug -mills, or agricultural tillers. If not using a batch plant or pug mill, it is advisable to parcel out soil if not already residing in cells or piles. This will allow for more careful metering of amendment. This is an example of the steps for batch -mixing: 1. Excavate a pile of contaminated waste/soil of a set amount — for example 100 tons, etc. 2. Add the EnviroBlend at the required dosage. For example, if a 2% dosage rate of EnviroBlend has been determined to be needed, it would necessitate that you add 2 tons of EnviroBlend per each 100 tons of soil. 3. Mix soil/EnviroBlend pile thoroughly with any of the previously mentioned equipment so that it becomes a homogenous mix. 4. Once complete, you can sample immediately for TCLP. There no cure time and no additives (e.g. water) or activator(s) need be mixed with the product for treatment Some products are offered in slurry form, for these products please see Slurry Application. EnviroBlend° Handling and Shelf Life Store product in a dry, protected place. Do not allow water to penetrate impoundment, silo, or Supersack. Significant or repeated exposure to precipitation may cause the product to clump or form a crust. With bulk piles of product, ground and top coverage tarps are recommended to keep product dry from precipitation and from wicking moisture from the ground. For Supersacks, even though sacks are water resistant and shrink-wrapped to pallets, tarping or covered storage of Supersacks is recommended to prevent product exposure to precipitation or ponded water — on the ground or on the sack — especially for prolonged (months) product staging time. Note that there is no specific shelf life, but if EnviroBlend is kept completely dry with no moisture exposure, it could last up to 6 months. However, any hydration could compromise chemical effectiveness, so it is best to purchase product as needed, and not for long term storage. For additional information about EnviroBlend products for environmental treatment applications, please contact Charis Gehret at cgehret@premiermagnesia.com. EnviroBlend® Application Guidelines and Storage and Handling - 2019 Environmental Management Plan (EMP) for Site Development Sir Walter Gun Club III Brownfields Project No.: 23068-19-092 S&ME Project No. 4305-19-213 APPENDIX III Construction Drawings for Merritt Hinton Oaks Blvd September 15, 2020