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HomeMy WebLinkAbout22009_Charlotte Naval Ammo Depot EMP_20181011Environmental Management Plan Charlotte Naval Ammo Depot 3100 Nevada Boulevard Charlotte, North Carolina Brownfields Project No. 22009-18-060 H&H Job No. CHK-006 October 11, 2018 CONTENTS Completed EMP Template Form Tables Table 1 Summary of Soil Analytical Data Table 2 Summary of Groundwater Analytical Data Table 3 Summary of Surface Water Analytical Data Table 4 Summary of Sediment Analytical Data Figures Figure 1 Site Location Map Figure 2 Sample Location Map Figure 3 Areas of Concern – Groundwater Map Appendices Appendix A Current Redevelopment Plan Appendix B Current Construction Schedule Appendix C Cut-Fill Analysis (Heat Map) Appendix D Current Grading Plan 1 EMP Version 2, June 2018 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. 2 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. 3 EMP Version 2, June 2018 GENERAL INFORMATION Date: 10/11/2018 Revision Date (if applicable): Click or tap to enter a date. Brownfields Assigned Project Name: Charlotte Naval Ammo Depot Brownfields Project Number: 22009-18-060 Brownfields Property Address: 3100 Nevada Boulevard, Charlotte, Mecklenburg County Brownfields Property Area (acres): 17.08 Is Brownfields Property Subject to RCRA Permit?.......................☐ Yes ☒ No If yes enter Permit No.: Click or tap here to enter text. Is Brownfields Property Subject to a Solid Waste Permit….……..☐ Yes ☒ No If yes, enter Permit No.: Click or tap here to enter text. COMMUNICATIONS A copy of this EMP shall be distributed to all the parties below as well as any contractors or site workers that may be exposed to site vapors, soil, groundwater, and/or surface water. Additionally, a copy of the EMP shall be maintained at the Brownfields Property during redevelopment activities. NOTE, THE EMP DOES NOT TAKE THE PLACE OF A SITE-SPECIFIC HEALTH AND SAFETY PLAN. Prospective Developer (PD): Arrowood Land Investors, LLC Contact Person: Mr. Christopher J. Daly Phone Numbers: Office: (704) 343-4311 Mobile: Click or tap here to enter text. Email: chris.daly@childressklein.com Contractor for PD: Click or tap here to enter text. Contact Person: Click or tap here to enter text. Phone Numbers: Office: Click or tap here to enter text. Mobile: Click or tap here to enter text. Email: Click or tap here to enter text. Environmental Consultant: Hart & Hickman, PC Contact Person: Mr. Justin Ballard Phone Numbers: Office: (919) 847-4241 Mobile: (252) 548-9191 Email: jballard@harthickman.com Brownfields Program Project Manager: Mr. Bill Schmithorst Phone Numbers: Office: (919) 707-8159 Mobile: Click or tap here to enter text. Email: william.schmithorst@ncdenr.gov Other DEQ Program Contacts (if applicable, i.e., UST Section, Inactive Hazardous Site Branch, 4 EMP Version 2, June 2018 Hazardous Waste, Solid Waste): Click or tap here to enter text. 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 onsite task: 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: Warehousing, Parking 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: Redevelopment plans include construction of an approximate 176,000 square ft single story 5 EMP Version 2, June 2018 warehouse building for commercial, industrial, office, parking, and/or retail uses. A copy of the current redevelopment plan is included in Appendix A. 4) Do plans include demolition of structure(s)?: ☐ Yes ☒ No ☐ Unknown ☐ If yes, please check here to confirm that demolition will be conducted in accordance with applicable legal requirements, including without limitation those related to lead and asbestos abatement that are administered by the Health Hazards Control Unit within the Division of Public Health of the North Carolina Department of Health and Human Services. If available, please provide a copy of your demolition permit. 5) Are sediment and erosion control measures required by federal, state, or local regulations? ☒ Yes ☐ No ☐ Unknown ☒ If yes, please check here to confirm that demolition will be conducted in accordance with applicable legal requirements. If soil disturbance is necessary to install sediment and erosion control measures, they may not begin until this EMP is approved. 6) Which category of risk-based screening level is used or is anticipated to be specified in the Brownfields Agreement? Note: If children frequent the property, residential screening levels shall be cited in the Brownfields Agreement for comparison purposes. ☐ Residential ☒ Non-Residential or Industrial/Commercial 7) Schedule for Redevelopment (attach construction schedule): a) Construction start date: 12/4/2018 b) Anticipated duration (specify activities during each phase): Redevelopment activities are anticipated to take up to 160 days to complete. Site work is anticipated to begin on 12/4/18 and take up to 45 days to complete. Shell construction is anticipated to begin on 12/25/18 and take up to 145 days to complete. Note that the construction milestones referenced above are subject to change. A copy of the current construction schedule is included in Appendix B. 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 date. Planned Activity: Click or tap here to enter text. Start Date: Click or tap to enter a date. Planned Activity: Click or tap here to enter text. Start Date: Click or tap to enter a date. Planned Activity: 6 EMP Version 2, June 2018 Click or tap here to enter text. d) Provide the planned date of occupancy for new buildings: Click or tap to enter a date. CONTAMINATED MEDIA 1) Contaminated Media on the Brownfields Property Part 1. Soil:……………………………………….……………. ☐ Yes ☒ No ☐ Suspected Part 2. Groundwater:.……………………….……..……. ☒ Yes ☐ No ☐ Suspected Part 3. Surface Water:.……………...……..…………… ☐ Yes ☒ No ☐ Suspected Part 4. Sediment:.……………...……..…………………… ☐ Yes ☒ No ☐ Suspected Part 5. Soil Vapor:…..…………...……..…………………. ☐ Yes ☐ No ☒ Suspected Part 6. Sub-Slab Soil Vapor:……...……..…………….. ☐ Yes ☒ No ☐ Suspected Part 7. Indoor Air:...……..…………………………………. ☐ Yes ☒ No ☐ Suspected 2) For the Area of Proposed Redevelopment on the Brownfields Property, attach tabulated data summaries for each impacted media and figure(s) with sample locations. PART 1. Soil – Please fill out the information below, using detailed site plans, if available, or estimate using known areas of contaminated soil and a conceptual redevelopment plan. Provide a figure overlaying new construction onto figure showing contaminated soil and groundwater locations. 1) Known or suspected contaminants in soil (list general groups of contaminants): As documented in Hart & Hickman’s Brownfields Assessment Report dated June 1, 2018, a soil assessment was conducted on the Brownfields property. A summary of the results is provided below. A tabular summary of soil analytical data in comparison to the February 2018 North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) is included as Table 1. Soil sample locations are shown in Figure 2. Volatile Organic Compounds (VOCs) Assessment activities conducted on the Brownfields property have identified low levels of VOCs at concentrations below DEQ Industrial/Commercial PSRGs. Semi-Volatile Organic Compounds (SVOCs) Assessment activities conducted on the Brownfields property did not identify any SVOCs at concentrations above laboratory method detection limits. Polychlorinated Biphenyls (PCBs) Assessment activities conducted on the Brownfields property did not identify any PCBs at concentrations above laboratory method detection limits. 7 EMP Version 2, June 2018 Metals Assessment activities conducted on the Brownfields property have identified low levels of metals at concentrations below DEQ Industrial/Commercial PSRGs. In addition, the metals concentrations are within the expected range for naturally occurring levels and are therefore considered background. 2) Depth of known or suspected contaminants (feet): Click or tap here to enter text. 3) Area of soil disturbed by redevelopment (square feet): Click or tap here to enter text. 4) Depths of soil to be excavated (feet): Proposed grading activities are expected to include excavations of up to approximately 10 ft below ground surface (bgs) in the central and eastern portions of the Brownfields property to reach final proposed grade and construct the pad for the proposed structure. Construction of building footers, foundations and utility installations may require additional excavations of up to 3 to 5 ft bgs. A Cut-Fill Analysis map (a.k.a. heat map) for the proposed redevelopment plan is provided in Appendix C. 5) Estimated volume of soil (cubic yards) to be excavated (attach grading plan): Up to approximately 75,000 to 85,000 cubic yards of soil are planned to be excavated and re- used on-Site as beneficial fill during grading activities. A copy of the current grading plan is included in Appendix D. 6) Estimated volume of excavated soil (cubic yards) anticipated to be impacted by contaminants: None anticipated at this time. 7) Estimated volume of contaminated soil expected to be disposed of offsite, if applicable: None anticipated at this time. 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 preliminary data available). 1) HAZARDOUS WASTE DETERMINATION: a) Does the soil contain a LISTED WASTE as defined in the North Carolina Hazardous Waste Section under 40 CFR Part 261.31-261.35?....................................... ☐Yes ☒No ☐ If yes, explain why below, including the level of knowledge regarding processes 8 EMP Version 2, June 2018 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 POLICY THE 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 Click or tap here to enter text. ☐ TCLP results Click or tap here to enter text. ☐ Rule of 20 results (20 times total analytical results for an individual hazardous constituent on TCLP list cannot, by test method, exceed regulatory TCLP standard) Click or tap here to enter text. ☒ If no, explain rationale: Soil analytical data does not indicate detections capable of exceeding toxicity characteristic leaching procedure (TCLP) criteria using the Rule of 20. d) NOTE: IF SOIL MEETS THE DEFINITION OF A CHARACTERISTIC HAZARDOUS WASTE, THE SOIL MAY NOT BE RE-USED ON SITE AND MUST BE DISPOSED OF IN ACCORDANCE WITH DEQ HAZARDOUS WASTE SECTION RULES AND REGULATIONS. 2) Screening criteria by which soil disposition decisions will be made (e.g., left in place, capped in place with low permeability barrier, removed to onsite location and capped, removed offsite): ☐ Preliminary Health-Based Residential SRGs ☒ Preliminary Health-Based Industrial/Commercial SRGs ☐ Division of Waste Management Risk Calculator (For Brownfields Properties Only) ☐ Site-specific risk-based cleanup level. Please provide details of methods used for determination/explanation. Click or tap here to enter text. 9 EMP Version 2, June 2018 Additional comments: Click or tap here to enter text. 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 ☐ ☐ Describe cap or fill: Click or tap here to enter text. ☐ 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: 4) Please describe the following action(s) to be taken during and following excavation and management of site soils: Management of fugitive dust from site ☒ Yes, describe the method will include: Significant areas of contaminated soil are not expected to be encountered or disturbed during future Site redevelopment activities based upon previous soil sampling data and field screening soil samples during previous assessment activities. The grading contractor will consider conditions such as wind speed, wind direction, and moisture content of soil during soil grading and stockpiling activities to minimize dust generation. In the unlikely event that potentially contaminated soil is encountered during Site redevelopment that requires excavation, particular attention will be paid by contractors to implement dust control measures as needed based on Site and atmospheric conditions (i.e. by controlled water application, hydro-seeding, and/or mulch, stone, or plastic cover). Potentially impacted soil will be managed as described below. ☐ No, explain rationale: Click or tap here to enter text. Click or tap here to enter text. 10 EMP Version 2, June 2018 Field Screening of site soil ☒ Yes, describe the field screening method, frequency of field screening, person conducting field screening: During soil disturbance at the Site, the workers or contractors will observe soils for evidence of potential significantly impacted soil that may not be suitable to leave in place in exposed areas at the Site. Evidence of potential significant impacted soil includes a distinct unnatural color, strong odor, or filled or previously disposed materials of concerns (i.e. chemicals, tanks, drums, etc.). Should the above be noted during Site work, the contractor will contact the project environmental engineer to observe the suspect condition. If the project environmental engineer confirms that the material may be impacted, then the procedures below will be implemented. In addition, the environmental engineer will contact the DEQ Brownfields project manager within two business days to advise that person of the condition. ☐ No, explain rationale: Click or tap here to enter text. Soil Sample Collection ☐ Yes, describe the sampling method (e.g., in-situ grab, composite, stockpile, etc.): Click or tap here to enter text. ☒ No, explain rationale: Collection of additional soil samples is not anticipated based on results of previous Site assessment activities. If significant soil impact is encountered during grading and/or installation or removal of utilities, excavation will proceed only as far as needed to allow grading and/or construction of the utility to continue and/or only as far as needed to allow alternate corrective measures described below. Suspect significantly impacted soil excavated during grading and/or utility line installation or removal may be stockpiled and covered in a secure area to allow construction to progress. Suspect impacted soil will be underlain by and covered with minimum 10-mil plastic sheeting. At least one representative sample of the soil will be collected for analysis of total VOCs, SVOCs, and RCRA metals plus hexavalent chromium. If the results of analysis of the sample indicate that the soil could potentially exceed toxicity characteristic hazardous waste criteria, then the soil will also be analyzed by the toxicity characteristic leaching procedure (TCLP) for those compounds that could exceed the toxicity characteristic hazardous waste criteria. Environmental sampling will be performed in general accordance with the DEQ IHSB Guidelines for Assessment and Cleanup (Guidelines) dated October 2015, and the most recent versions of the U.S. Environmental Protection Agency (EPA) Region IV Science and Ecosystem Support Division (SESD) Field Branches Quality System and Technical Procedures guidance. Impacted soil will be handled in accordance with applicable municipal, county, DEQ, and EPA regulations and in the manner described below based upon the laboratory analyses: 11 EMP Version 2, June 2018 i. If no organic compounds are detected in a sample (other than which are attributable to sampling or laboratory artifacts) and metals are below Residential PSRGs or are consistent with published and Site-specific background levels, then the soil will be deemed suitable for use as on-Site fill or as off-Site fill. The proposed location(s) for off- Site placement of soil (other than a permitted facility) along with the receiving facility’s acknowledgement for acceptance of the soil will be provided to DEQ for approval prior to taking the soil off-Site. ii. If detectable levels of compounds are found which do not exceed the DEQ Industrial/Commercial PSRGs (other than which are attributable to sampling or laboratory artifacts or which are consistent with Site-specific background levels for metals) and the TCLP concentrations are below hazardous waste criteria, then the soil may be used on- Site as fill without restriction. iii. If detectable levels of compounds are found which exceed the DEQ Industrial/Commercial PSRGs (other than which are attributable to sampling or laboratory artifacts or which are consistent with background levels for metals) and the TCLP concentrations are below hazardous waste criteria, then the soil, with DEQ’s written approval, may be used on-Site as fill below an impervious surface, or at least 2 ft of compacted clean soil. If the impacted soil with concentrations above DEQ Industrial/Commercial PSRGs is moved to an on-Site location, its location and depth will be documented, covered with a geotextile fabric so that its location can be identified if encountered in the future, and its location will be provided to DEQ in an updated survey plat. iv. Impacted soil may be transported to a permitted facility such as a landfill provided that the soil is accepted at the disposal facility. If soil is transported to a permitted facility, the permitted facility’s written approval to dispose of soil from the Site will be included with the final EMP report. In the unlikely event that the sample data indicates concentrations above TCLP hazardous waste criteria, then the soil must be transported off-Site to a permitted disposal facility that can accept or treat hazardous waste. If soil samples are collected for analysis, please check the applicable chemical analytes: ☒ Volatile organic compounds (VOCs) by EPA Method 8260 ☒ Semi-volatile organic compounds (SVOCs) by EPA Method 8270 ☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver): Specify Analytical Method Number(s): EPA Method 6020 and EPA Method 7471 ☐ 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. 12 EMP Version 2, June 2018 ☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Specify Analytical Method Number(s): Hexavalent Chromium by EPA Method 7196 ☒ 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: ☒ 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 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): EPA Method 6020 and 7471 ☐ 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.): Hexavalent Chromium by EPA Method 7196 Please provide a scope of work for final grade sampling, including a diagram of soil sampling locations, number of samples to be collected, and brief sampling methodology. Samples should be collected from 0-2 ft below ground surface, with the exception of VOCs which should be taken from 1-2 ft below ground surface. Alternatively, a work plan for final grade sampling may be submitted under separate cover. Following completion of soil disturbance for any future Site development (i.e., after grading and utility construction), an environmental professional will be contracted to assess the Site for areas that are not covered with clean fill soil, building foundations, sidewalks, or asphalt or concrete parking areas and driveways, or other similar impervious areas. If such areas exist, a plan will be prepared for final grade sampling for DEQ Brownfields review and approval. If no such areas exist, documentation will be provided to the DEQ Brownfields project manager. ☐ If final grade sampling was NOT selected please explain rationale: Click or tap here to enter text. 13 EMP Version 2, June 2018 Click or tap here to enter text. 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? The need for off-Site import of fill soil is not anticipated at this time. However, the PD plans to import limited amounts of organic rich topsoil from a reputable landscape material vendor for use in proposed landscaped areas. 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.) Click or tap here to enter text. 4) Provide the source of fill, including: location, site history, nearby environmental concerns, etc. Attach aerial photos, maps, historic Sanborn maps and a borrow source site history: Click or tap here to enter text. 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 at the Brownfields property. The PD does not plan to collect samples of landscaping materials prior to placement at the Site. DEQ Brownfields will be notified of the volume of landscaping material needed and the proposed source of the material prior to placement in proposed landscaping areas. The need for off-Site import of fill soil is not anticipated at this time. However, should import of structural fill be needed for future redevelopment of the Site, the PD will follow the procedures outlined below. If the PD plans to import fill material from Vulcan Materials Company quarry located near Pineville, NC or from the Martin Marietta quarry located on Beatties Ford Road in Charlotte, NC, no samples of the import material will be collected as adequate analytical data is available in the DEQ Brownfields database to demonstrate material from these facilities is suitable for use as structural fill at a Brownfields property. 14 EMP Version 2, June 2018 For import material from unknown borrow sources, prior to bringing fill soil to the Site, historical information about the fill Site and a proposed sampling design will be provided to DEQ for review and approval based upon the estimated quantity of import fill to be obtained from the fill site. The soil sample(s) will be analyzed for VOCs, SVOCs, and RCRA metals plus hexavalent chromium. Fill soil will be considered suitable for use at the Site if it does not contain compound concentrations above DEQ Industrial/Commercial PSRGs or typical metals concentrations which are consistent with background levels identified at the Site. 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): EPA Method 6020 and EPA Method 7471 ☒ 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.): Hexavalent Chromium by EPA Method 7196 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. The PD does not plan to collect samples of landscaping materials prior to placement at the Site. DEQ Brownfields will be notified of the volume of landscaping material needed and the proposed source of the material prior to placement in proposed landscaping areas. The need for off-Site import of fill soil is not anticipated at this time. However, should import of structural fill be needed for future redevelopment of the Site, the PD will follow the procedures outlined below. If the PD plans to import fill material from Vulcan Materials Company quarry located near Pineville, NC or from the Martin Marietta quarry located on Beatties Ford Road in Charlotte, NC, no samples of the import material will be collected as adequate analytical data is available in the DEQ Brownfields database to demonstrate material from these facilities is suitable for use as structural fill at a Brownfields property. For import material from unknown borrow sources, prior to bringing fill soil to the Site, historical information about the fill Site and a proposed sampling design will be provided to DEQ for review 15 EMP Version 2, June 2018 and approval based upon the estimated quantity of import fill to be obtained from the fill site. The soil sample(s) will be analyzed for VOCs, SVOCs, and RCRA metals plus hexavalent chromium. Fill soil will be considered suitable for use at the Site if it does not contain compound concentrations above DEQ Industrial/Commercial PSRGs or typical metals concentrations which are consistent with background levels identified at the Site. Part 1.C. EXPORTED SOIL NO SOIL MAY LEAVE THE BROWNFIELDS PROPERTY WITHOUT APPROVAL FROM THE BROWNFIELDS PROGRAM. FAILURE TO OBTAIN APPROVAL MAY VIOLATE A BROWNFIELDS AGREEMENT CAUSING A REOPENER OR JEOPARDIZING ELIGIBILITY IN THE PROGRAM, ENDANGERING LIABILITY PROTECTIONS AND MAKING SAID ACTION POSSIBLY SUBJECT TO ENFORCEMENT. JUSTIFICATIONS PROVIDED BELOW MUST BE APPROVED BY THE PROGRAM IN WRITING PRIOR TO COMPLETING TRANSPORT ACTIVITIES. Please refer to Brownfields IR 15 for additional details. 1) If export from a Brownfields Property is anticipated, please provide details regarding the proposed export actions. Volume of exported soil, depths, location from which soil will be excavated on site, related sampling results, etc. Provide a site map with locations of export and sampling results included. Export soil is not anticipated at this time. Should soil need to be exported from the Brownfields property during redevelopment, a sampling plan will be developed and submitted to DEQ Brownfields for review and approval once the volume of soil for export is known. Generally, soil samples will be collected from export soil at a rate of 1 sample per every 400-500 cubic yards of export. DEQ approval of the sampling plan and analytical results will be obtained prior to transporting export soil from the Site. Based on analytical results of soil samples collected from the export soil, the soil will be transported off-Site to a suitable location. The PD will notify DEQ Brownfields of the location receiving the export soil and DEQ Brownfields approval and written approval from the receiving facility will be obtained prior to transporting the soil off-Site. 2) To what type of facility will the export Brownfields soil be sent? ☒ Subtitle D/Municipal Solid Waste Landfill (analytical program to be determined by landfill) ☒ Permitted but Unlined Landfill (i.e. LCID, C&D, etc.) Analytical program to be determined by the accepting Landfill; ☒ Landfarm or other treatment facility ☒ Use as fill at another suitable Brownfields Property – determination that a site is suitable will require, at a minimum, that similar concentrations of the same or similar contaminants already exist at both sites, use of impacted soil will not increase the potential for risk to human health and the environment at the receiving Brownfields 16 EMP Version 2, June 2018 property, and that a record of the acceptance of such soil from the property owner of the receiving site is provided to Brownfields. Please provide additional details below. ☒ Use as Beneficial Fill off-site at a non-Brownfields Property - Please provide documentation of approval from the property owner for receipt of fill material. This will also require approval by the DEQ Solid Waste Section. Additional information is provided in IR 15. Please provide additional details below. 3) Additional Details: (if transfer of soil to another property is requested above, please provide details related to the proposed plans). Click or tap here to enter text. Part 1.D. MANAGEMENT OF UTILITY TRENCHES ☐ Install liner between native impacted soils and base of utility trench before filling with clean fill (Preferred) ☒ Last out, first in principle for impacted soils (if soil can safely be reused onsite and is not a hazardous waste), i.e., impacted soils are placed back at approximately the depths they were removed from such that impacted soil is not placed at a greater depth than the original depth from which it was excavated. ☐ Evaluate whether necessary to install barriers in conduits to prevent soil vapor transport, and/or degradation of conduit materials due to direct impact with contaminants? ☐ If yes, provide specifications on barrier materials: Click or tap here to enter text. ☒ If no, include rationale here: Impacted soil has not been identified at on the Site property. Other comments regarding managing impacted soil in utility trenches: Although not anticipated, in the event contaminated soil and/or vapors are encountered in utility trenches during redevelopment activities, the trench will be evacuated and appropriate safety screening of the vapors will be performed to protect workers. If results indicate further action is warranted in response to vapors to protect workers, appropriate engineering controls (such as use of industrial fans) will be implemented. The contractor and workers will observe soil for potential impacts during utility installation activities. Evidence of potential significant impacted soil includes a distinct unnatural color, strong odor, or filled or previously disposed materials of concerns (i.e. chemicals, tanks, drums, etc.). Should the above be noted during utility work, the contractor will contact the project environmental engineer to observe the suspect condition. If the project environmental engineer confirms that the material may be impacted, then the procedures outlined Managing On-Site Soil above will be implemented. In addition, the environmental engineer will contact the DEQ Brownfields project manager within two 17 EMP Version 2, June 2018 business days to advise that person of the condition. PART 2. GROUNDWATER – Please fill out the information below. 1) What is the depth to groundwater at the Brownfields Property? The depth to groundwater at the Brownfields property is highly variable. Under purview of the United States Army Corps of Engineers (USACE), multiple phases of assessment and remediation have been conducted at the Site as part of investigation activities for the former Charlotte Naval Ammunition Depot (CNAD). Based on review of March 2018 groundwater assessment results, groundwater has been identified at depths ranging from approximately 1.6 ft bgs in the central portions of the Site to 11.2 ft bgs in the eastern portions of the Site. However, shallow depth to groundwater measurements may not be indicative of actual groundwater elevations and may be locally influenced by potential groundwater mounding from injection activities and/or partially submerged wells screens in bedrock. In addition to available information from the USACE investigation, a January 2017 geotechnical assessment conducted at the Brownfields property indicated approximate depths to groundwater ranging from approximately 6.0 ft bgs in the central portions of the Site to 8.0 ft bgs in the northwestern portions of the Site. Further, groundwater elevations may also be influenced by topography. Land surfaces at the Brownfields property slope from a topographic high of approximately 650.6 ft above mean sea-level in the eastern portions of the Site to approximately 614.3 ft above mean sea-level in the western portions of the Site. In general, topographic high areas appear to exhibit deeper depth to groundwater measurements while topographic low areas appear to exhibit shallower depth to water measurements. It should be noted that although available information suggest that on-Site groundwater elevations have the potential to be highly variable, current redevelopment plans propose cut for the topographic high portions of the Site and fill for the topographic low portions of the Site. 2) Is groundwater known to be contaminated by ☐onsite ☒offsite ☐both or ☐unknown sources? Describe source(s): According to historical reports, the source of the groundwater contamination was an off-Site trichloroethylene (TCE) degreasing operation associated with the former CNAD. As part of the USACE investigation, groundwater has been monitored on the Brownfields property. The results of the monitoring indicated that VOC cis-1,2-dichloroethene, TCE, and vinyl chloride have impacted on-Site groundwater at concentrations that exceed 15A NCAC 02L .0202 Groundwater Standards (2L Standards) and DEQ Non-Residential Vapor Intrusion Groundwater Screening Levels (GWSLs). A tabular summary of on-Site groundwater analytical data in comparison to 2L Standards and GWSLs is included as Table 2. Groundwater data exhibiting exceedances of 2L Standards and GWSLs from the March 2018 monitoring event are shown in Figure 3. 3) What is the direction of groundwater flow at the Brownfields Property? 18 EMP Version 2, June 2018 Groundwater at the Site flows to the west. 4) Will groundwater likely be encountered during planned redevelopment activities? ☐Yes ☒No If yes, describe these activities: Groundwater is not expected to be encountered during redevelopment activities. However, if groundwater is encountered, the PD or the PD’s contractor will contact the project environmental engineer. The environmental engineer will update the DEQ Brownfields project manager within two business days. 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., dewatering of groundwater from excavations or foundations, containerizing, offsite disposal, discharge to sanitary sewer, NPDES permit, or sampling procedures). Although not anticipated at this time, appropriate worker safety measures will be undertaken if groundwater gathers in an open excavation within an area determined to be impacted during construction activities. The accumulated water will be allowed to evaporate, tested and disposed off-Site (if impacted), or tested and discharged to the storm sewer (if not impacted above DEQ surface water standards) in accordance with applicable municipal and State regulations for erosion control and construction stormwater control. 5) Are monitoring wells currently present on the Brownfields Property?.................☒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: 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. The USACE and the PD are currently in process of discussing redevelopment plans and their impact on future groundwater monitoring and remediation. At the conclusion of these discussions, an update will be provided to the DEQ Brownfields project manager. 19 EMP Version 2, June 2018 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): Unnamed intermittent surface water bodies and wetlands areas are present at the Site. The unnamed tributaries flow into Steele Creek approximately 0.5-mile west of the Site. Based on the DEQ classification system, Steele Creek is a Class C surface water body. As documented in Hart & Hickman’s Brownfields Assessment Report dated June 1, 2018, a surface water assessment was conducted on the Brownfields property. The location of the previous surface water sample and a summary of previous surface water sample data are provided in Figure 2 and Table 3, respectively. As shown in Table 3, no compounds have been detected in surface water at concentrations exceeding Title 15A NCAC 2B Surface Water Standards (2B Standards) for Class C Waters. Based on redevelopment plans, it is not anticipated that the surface water bodies or wetlands areas will be disturbed during redevelopment activities. Should they be disturbed, or if surface water run-off gathers in an open excavation within an area determined to be impacted during construction activities, appropriate worker safety measures will be undertaken. The accumulated water will be allowed to evaporate, tested and disposed off-site (if impacted), or tested and discharged to the storm sewer (if not impacted above DEQ surface water standards) in accordance with applicable municipal and State regulations for erosion control and construction stormwater control. 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 20 EMP Version 2, June 2018 activities? ☐ Yes ☒ No 4) Attach a map showing location of known contaminated sediment at the property. 5) In the event that contaminated sediment is encountered during redevelopment activities, list activities for management of such events (stream bed disturbance): As documented in Hart & Hickman’s Brownfields Assessment Report dated June 1, 2018, a sediment assessment was conducted on the Brownfields property. The location of the previous sediment sample and a summary of previous sediment sample data are provided in Figure 2 and Table 4, respectively. As shown in Table 4, no compounds have been detected in sediment at concentrations exceeding DEQ Industrial/Commercial PSRGs. Based on redevelopment plans, it is not anticipated that sediment from surface water bodies or wetlands areas will be disturbed during redevelopment activities. Should they be disturbed, and if field observations indicate the sediment is potentially impacted, the sediment will be managed in accordance with the procedures described in Part 1A. PART 5. SOIL VAPOR – Please fill out the information below. 1) Do concentrations of volatile organic compounds at the Brownfields property exceed the following vapor intrusion screening levels (current version) in the following media: IHSB Residential Screening Levels: Soil Vapor:………..☐ Yes ☐ No ☒ Unknown Groundwater:.….☒ Yes ☐ No ☐ Unknown IHSB Industrial/Commercial Screening Levels: Soil Vapor:………..☐ Yes ☐ No ☒ Unknown Groundwater:…..☒ Yes ☐ No ☐ Unknown 2) Attach a map showing the locations of soil vapor contaminants that exceed site screening levels. 3) If applicable, at what depth(s) is soil vapor known to be contaminated? Vapor intrusion assessment has not been conducted at the Brownfields property. However, as part of the USACE’s monitoring activities, methane in soil vapor has been assessed at off-Site properties. Results of this data show that methane, a byproduct of the remedial activities, has been detected in excess of 100% Lower Explosive Limit. In addition, results of USACE groundwater monitoring indicated VOCs TCE and vinyl chloride have impacted on-Site groundwater at concentrations that exceed DEQ Non-Residential Vapor Intrusion GWSLs. A tabular summary of groundwater analytical data in comparison to GWSLs is included as Table 2. Groundwater sample locations are shown in Figure 2. 21 EMP Version 2, June 2018 4) Will workers encounter contaminated soil vapor during planned redevelopment activities? ☐ Yes ☐ No ☒ Unknown 5) In the event that contaminated soil vapor is encountered during redevelopment activities (trenches, manways, basements or other subsurface work,) list activities for management of such contact: In the unlikely event impacted soil vapors are encountered during future redevelopment activities, worker breathing zone will be monitored using a calibrated photoionization detector and calibrated methane gas detector. If results indicate further action is warranted, appropriate engineering controls (such as use of industrial fans) will be implemented. PART 6. SUB-SLAB SOIL VAPOR – Please fill out the information below if existing buildings or foundations will be retained in the redevelopment. 1) Are sub-slab soil vapor data available for the Brownfields Property? ☐ Yes ☒ No ☐ Unknown 2) If data indicate that sub-slab soil vapor concentrations exceed screening levels, attach a map showing the location of these exceedances. 3) At what depth(s) is sub-slab soil vapor known to be contaminated? ☐0-6 inches ☐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 In the unlikely event impacted soil vapors are encountered during future redevelopment activities, worker breathing zone will be monitored using a calibrated photoionization detector and calibrated methane gas detector. If results indicate further action is warranted, appropriate engineering controls (such as use of industrial fans) will be implemented. PART 7. INDOOR AIR – Please fill out the information below. 1) Are indoor air data available for the Brownfields Property? ☐ Yes ☒ No ☐ Unknown 2) Attach a map showing the location(s) where indoor air contaminants exceed site screening levels. 3) If the structures where indoor air has been documented to exceed risk-based screening levels will not be demolished as part of redevelopment activities, will workers encounter contaminated Based on the information provided above, the PD’s contractor will utilize appropriate monitoring devices and safety procedures during future redevelopment activities. 22 EMP Version 2, June 2018 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: VAPOR INTRUSION MITIGATION SYSTEM – Please fill out the information below. Is a vapor intrusion mitigation system (VIMS) proposed for this Brownfields Property? ☒ Yes ☐ No ☐ Unknown If yes, ☐ VIMS Plan Attached or ☒ VIMS Plan to be submitted separately If submitted separately provide date: A Vapor Intrusion Mitigation Plan will be submitted to DEQ for approval under separate cover prior to construction of the proposed Site building. 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: Click or tap here to enter text. 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, or other 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. In the unlikely event there is evidence of potential indoor air issues (i.e. unusual odors) during future redevelopment activities, the area will be evacuated and appropriate safety screening of the indoor air will be performed. If warranted, safety screening procedures will include periodically screening indoor air for volatile organic vapors with a calibrated photoionization detector and calibrated methane gas detector. If results indicate further action is warranted, appropriate engineering controls (such as use of industrial fans) will be implemented. 23 EMP Version 2, June 2018 Check the following chemical analysis that are to be conducted on newly identified releases: ☒ Volatile organic compounds (VOCs) by EPA Method 8260 ☒ Semi-volatile organic compounds (SVOCs) by EPA Method 8270 ☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver) EPA Method 6020 and EPA Method 7471 ☐ 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 & 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. Hexavalent Chromium by EPA Method 7196 Please provide details on the proposed methods of managing the following commonly encountered issues during redevelopment of Brownfields Properties. During construction activities, contractors may encounter unknown sub-surface environmental conditions (i.e. tanks, drums, or waste materials) that if encountered, will require proper management. Prior to beginning Site work, H&H will attend a pre-construction kick-off meeting with the PD and the redevelopment contractors to discuss the DEQ approved EMP and various scenarios when it would be appropriate and necessary to notify H&H of the discovery of unknown subsurface features or potentially impacted media at the Site. In the event that such conditions are encountered during Site redevelopment activities, the environmental actions noted below will be used to direct environmental actions to be taken during these activities and sampling data for potentially impacted soil and the disposition of impacted soil will be provided to DEQ when the data becomes available. Underground Storage Tanks: In the event an underground storage tank (UST) or impacts associated with a UST release are discovered at the Site during redevelopment activities, the UST and/or UST related impacts will be addressed through the Brownfields Program. If a UST is encountered and does not require removal for geotechnical or construction purposes, it will be abandoned in-place and construction will proceed. Where appropriate, the bottom may be penetrated before abandonment to prevent fluid accumulation. If the UST contains residual fluids, the fluids will be removed, sampled for VOCs, SVOCs, and RCRA metals, and transported off-Site for disposal at a suitable facility based on the laboratory analytical results. Impacted soil will be managed in accordance with the Managing On-Site Soil section outlined above in the EMP. Sub-Grade Feature/Pit: 24 EMP Version 2, June 2018 If a sub-grade feature or pit is encountered and does not require removal for geotechnical or construction purposes, it will be filled with soil or suitable fill and construction will proceed. Where appropriate, the bottom may be penetrated before back filling to prevent fluid accumulation. If the pit has waste in it, the waste may be set aside in a secure area and will be sampled for waste disposal purposes for TCLP VOCs, TCLP SVOCs, and TCLP metals and disposed off-Site at a permitted facility or the waste will be managed in accordance with the Managing On-Site Soil section outlined above in the EMP, whichever is most applicable based on the type of waste present. If the pit must be removed and the observed waste characteristics indicate the concrete may potentially be contaminated to a significant degree, the concrete will be sampled and analyzed by methods specified by the disposal facility. Buried Waste Material: If excavation into buried wastes or significantly impacted soils occurs, the contractor is instructed to stop work in that location and notify the environmental consultant. The environmental consultant will review the materials and collect samples if warranted. In this event, confirmation sampling will be conducted at representative locations in the base and the sidewalls of the excavation after the waste or significantly impacted soil is removed. The confirmation samples will be analyzed for VOCs, SVOCs, and the RCRA metals plus hexavalent chromium. Areas of suspected contaminated soil that remain at the Site after excavation is complete above the DEQ Industrial/Commercial PSRGs will be managed pursuant to this plan and incorporated into the Brownfields plat. Re-Use of Impacted Soils On-Site: Please refer to description outlined in the Managing On-Site Soil section of the EMP above. If unknown, impacted soil is identified on-site, management on-site can be considered after the project team provides the necessary information, outlined in Part 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: Click or tap here to enter text. POST-REDEVELOPMENT REPORTING ☒ Check this box to acknowledge that a Redevelopment Summary Report will be required for the project. If the project duration is longer than one year, an annual update is required and will be due by January 31 of each year, or 30 days after each one-year anniversary of the effective date of this EMP (as agreed upon with the Project Manager). These reports will be required for as long as physical redevelopment of the Brownfields Property continues, except that the final Redevelopment Summary Report will be submitted within 90 days after completion of redevelopment. Based on the estimated construction schedule, the first Redevelopment Summary 25 EMP Version 2, June 2018 Report is anticipated to be submitted on Click or tap to enter a date. 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). ☒ 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. 27 EMP Version 2, June 2018 Table 1 Summary of Soil Analytical Data Charlotte Naval Ammo Depot Charlotte, North Carolina H&H Job No. CHK.006 Sample ID SB-1 SB-2 SB-DUP-1 SB-3 Depth (ft bgs)0-2 2-4 2-4 2-4 Sample Date 5/1/18 5/1/18 5/1/18 5/1/18 Range Mean Range Mean Ref. Units VOCs (8260B) Acetone 0.037 J <0.11 <0.10 0.023 J 12,000 140,000 ---------- SVOCs (8270D) ALL BRL ALL BRL ALL BRL ALL BRL -------------- PCBs (8082A) ALL BRL ALL BRL ALL BRL ALL BRL -------------- RCRA Metals (6020/7471B/7196A) Arsenic 1.5 DL-15 0.63 DL-15 0.62 DL-15 1.9 DL-15 0.68 3.0 0.81-1.9 1.36 1.0-18 4.8 A Barium 200 DL-15 250 DL-15 180 DL-15 120 DL-15 3,100 47,000 180 180 50-1,000 356 A Cadmium 0.037 DL-15, J <0.80 DL-15 <0.84 DL-15 <0.84 DL-15 14.0 200 0.091-0.78 0.435 1.0-10 4.3 B Total Chromium 28 DL-15 29 DL-15 25 DL-15 26 DL-15 NS NS 35-43 39 7.0-300 65 A Hexavalent Chromium 0.23 DL-03, J 0.21 DL-03, J 0.2 DL-03, J 0.21 DL-03, J 0.31 6.5 0.21-0.31 0.26 NS NS -- Trivalent Chromium 27.77 28.79 24.8 25.79 23,000 350,000 34.79-42.69 38.74 NS NS -- Lead 16 DL-15 4.1 DL-15, J 3.3 DL-15, J 10 DL-15 400 800 5.8-14 9.9 BRL-50 16 A Mercury 0.034 B 0.021 B, J 0.019 B, J 0.04 B 2.3 9.7 0.022-0.025 0.024 0.03-0.52 0.121 A Selenium <1.9 DL-15 <1.8 DL-15 <1.9 DL-15 <1.8 DL-15 78 1,200 1.7-1.8 1.75 <0.1-0.8 0.42 A Silver 0.048 DL-15, J 0.052 DL-15, J 0.053 DL-15, J 0.051 DL-15, J 78 1,200 0.047-0.05 0.049 BRL-5.0 NS C Notes: Regional Background Metals in Soil(2) mg/kg DL-15 = sample required a dilution due to low internal standard recovery of the lesser diluted digestion, reporting limit is elevated DL-03 = reporting limit elevated due to matrix B = analyte was detected in the associated laboratory blank as well as in the sample J = compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in an estimated concentration C. Soils of the conterminous USA B. Southeastern US soils A. North Carolina soils Laboratory analytical methods are shown in parentheses. Soil concentrations are reported in milligrams per killogram (mg/kg). Ref. 2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005. 1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) (February 2018). -- = not applicable; NA = Not analyzed; NS= not specified; BRL = below laboratory reporting limit; ft bgs = feet below the ground surface; RCRA = Resource Conservation and Recovery Act SB-2 Residential PSRG(1) Industrial/ Commercial PSRG(1) With the exception of metals, only analytes with concentrations above the laboratory reporting limit are shown. Site-Specific Background Metals in Soil File: S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\EMP\Tables\Brownfields Assessment Tables 1,3,4_CNAD (BPN 22009-18-060)_20180827Brownfields Assessment Tables 1,3,4_CNAD (BPN 22009-18-060)_20180827Date: 8/27/2018 Table 1 (Page 1 of 2) Hart & Hickman, PC Table 1 Summary of Soil Analytical Data Charlotte Naval Ammo Depot Charlotte, North Carolina H&H Job No. CHK.006 Sample ID SB-4 SB-5 SB-BG-1 SB-BG-2 Depth (ft bgs)2-4 3-5 0-2 2-4 Sample Date 5/1/18 5/1/18 5/1/18 5/1/18 Range Mean Range Mean Ref. Units VOCs (8260B) Acetone 0.034 J <0.099 NA NA 12,000 140,000 ---------- SVOCs (8270D) ALL BRL ALL BRL NA NA -------------- PCBs (8082A) ALL BRL ALL BRL NA NA -------------- RCRA Metals (6020/7471B/7196A) Arsenic 1.2 DL-15 0.42 DL-15 1.9 DL-15 0.81 DL-15 0.68 3.0 0.81-1.9 1.36 1.0-18 4.8 A Barium 130 DL-15 220 DL-15 180 DL-15 180 DL-15 3,100 47,000 180 180 50-1,000 356 A Cadmium <0.79 DL-15 0.041 DL-15, J <0.78 DL-15 0.091 DL-15, J 14.0 200 0.091-0.78 0.435 1.0-10 4.3 B Chromium (total)17 DL-15 9.9 DL-15 43 DL-15 35 DL-15 NS NS 35-43 39 7.0-300 65 A Hexavalent Chromium 0.54 DL-03, J 0.2 DL-03, MS-16, J 0.31 DL-03, J 0.21 DL-03, J 0.31 6.5 0.21-0.31 0.26 NS NS -- Trivalent Chromium 16.46 9.7 42.69 34.79 23,000 350,000 34.79-42.69 38.74 NS NS -- Lead 12 DL-15 3.4 DL-15, J 14 DL-15 5.8 DL-15 400 800 5.8-14 9.9 BRL-50 16 A Mercury 0.037 B 0.015 B, J 0.022 B, J 0.025 B, J 2.3 9.7 0.022-0.025 0.024 0.03-0.52 0.121 A Selenium <1.8 DL-15 0.22 DL-15, J <1.7 DL-15 <1.8 DL-15 78 1,200 1.7-1.8 1.75 <0.1-0.8 0.42 A Silver 0.048 DL-15, J 0.036 DL-15, J 0.047 DL-15, J 0.05 DL-15, J 78 1,200 0.047-0.05 0.049 BRL-5.0 NS C Notes: DL-15 = sample required a dilution due to low internal standard recovery of the lesser diluted digestion, reporting limit is elevated Soil concentrations are reported in milligrams per killogram (mg/kg). Laboratory analytical methods are shown in parentheses. -- = not applicable; NA = Not analyzed; NS= not specified; BRL = below laboratory reporting limit; ft bgs = feet below the ground surface; RCRA = Resource Conservation and Recovery Act J = compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in an estimated concentration B = analyte was detected in the associated laboratory blank as well as in the sample Regional Background Metals in Soil(2) Ref. A. North Carolina soils B. Southeastern US soils C. Soils of the conterminous USA With the exception of metals, only analytes with concentrations above the laboratory reporting limit are shown. DL-03 = reporting limit elevated due to matrix 1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) (February 2018). 2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005. mg/kg Industrial/ Commercial PSRG(1) Residential PSRG(1) Site-Specific Background Metals in Soil File: S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\EMP\Tables\Brownfields Assessment Tables 1,3,4_CNAD (BPN 22009-18-060)_20180827Brownfields Assessment Tables 1,3,4_CNAD (BPN 22009-18-060)_20180827Date: 8/27/2018 Table 1 (Page 2 of 2) Hart & Hickman, PC Table 2 Summary of Groundwater Analytical DataCharlotte Naval Ammo DepotCharlotte, North CarolinaH&H Job No. CHK.006 Sample ID Sample Date 2/27/2013 3/28/2018 2/27/2013 11/21/2014 2/19/2015 2/19/2015 (Duplicate)5/21/2015 8/18/2015 11/12/2015 2/24/2016 5/17/2016 3/25/2018 Units 1,1-Dichloroethene <1.0 <1.0 <50 <50 <25 <10 <25 <25 <25 <25 <25 5.1 J 350 160cis-1,2-Dichloroethene 3.1 1.9 13 J 400 1,800 1,900 2,400 2,300 J 2,200 1,600 1,700 2,300 70 NEtrans-1,2-Dichloroethene 0.53 J 0.89 J <50 <50 <25 <10 <25 <25 <25 <25 <25 2.6 J 100 NETrichloroethylene110392,900 3,200 530 530 13 J 140 <25 830 41 350 3.0 4.4Vinyl Chloride <1.0 <1.0 <50 <50 <25 <10 <25 <25 <25 <25 <25 93 0.03 25Xylenes (Total)0.25 J <0.45 <100 <100 <25 <10 <25 <25 <25 <25 <25 <4.5 500 320 Notes:1) North Carolina 2L Groundwater Standards (NC 2L Standards) (April 2013).2) North Carolina Department of Environmental Quality (DEQ) Non-Residential Vapor Intrusion Groundwater Screening Levels (GWSLs) (February 2018).Compounds shown reflect the compound list referenced in the March 2017 PIKA-PIRNIE JV, LLC Remedial Action & Performance Monitoring Report. Concentrations are reported in micrograms per liter (µg/L). Laboratory analytical methods are shown in parentheses.Bold values exceed NC 2L Standard.Underline values exceed the DWM Non-Residential Groundwater VISL (February 2018).VOCs = volatile organic compounds.NE= Not EstablishedJ = compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in an estimated concentration. DEQNon-Residential Vapor Intrusion GWSL(2) µg/L VOCs (8260B) NADMW-38 NADMW-58 NC 2L Groundwater Standards(1) S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\EMP\Tables\Brownfields Assessment Groundwater Table 2_CNAD (BPN 22009-18-060)_20180522 8/27/2018 Table 2 (Page 1 of 2) Hart & Hickman, PC Table 2 Summary of Groundwater Analytical DataCharlotte Naval Ammo DepotCharlotte, North CarolinaH&H Job No. CHK.006 Sample ID Sample Date 2/27/2013 2/27/2013 (Duplicate)11/21/2014 2/19/2015 8/18/2015 11/12/2015 2/23/2016 5/17/2016 3/25/2018 Units 1,1-Dichloroethene <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 350 160cis-1,2-Dichloroethene 7.6 8.4 10.0 6.2 7.3 7.8 7.8 6.9 6.5 70 NEtrans-1,2-Dichloroethene <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 0.21 J 100 NETrichloroethylene4147513937384237323.0 4.4Vinyl Chloride <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 0.03 25Xylenes (Total)<2.0 0.25 J <2.0 <1.0 < 1.0 < 1.0 < 1.0 <1.0 <0.45 500 320 Notes:1) North Carolina 2L Groundwater Standards (NC 2L Standards) (April 2013).2) North Carolina Department of Environmental Quality (DEQ) Non-Residential Vapor Intrusion Groundwater Screening Levels (GWSLs) (February 2018).Compounds shown reflect the compound list referenced in the March 2017 PIKA-PIRNIE JV, LLC Remedial Action & Performance Monitoring Report. Concentrations are reported in micrograms per liter (µg/L). Laboratory analytical methods are shown in parentheses.Bold values exceed NC 2L Standard.Underline values exceed the DWM Non-Residential Groundwater VISL (February 2018).VOCs = volatile organic compounds.NE= Not EstablishedJ = compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in an estimated concentration. NADMW-66 NC 2L Groundwater Standards(1) DEQNon-Residential Vapor Intrusion GWS(2) µg/L VOCs (8260B) S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\EMP\Tables\Brownfields Assessment Groundwater Table 2_CNAD (BPN 22009-18-060)_20180522 8/27/2018 Table 2 (Page 2 of 2) Hart & Hickman, PC Table 3 Summary of Surface Water Analytical Data Charlotte Naval Ammo Depot Charlotte, North Carolina H&H Job No. CHK.006 Sample ID SW-1 SW-DUP-1 Sample Date 5/1/18 5/1/18Units VOCs (8260B) cis-1,2-Dichloroethylene 2.2 3.0 720 Trichloroethylene 1.0 1.2 30 SVOCs (8270D) ALL BRL ALL BRL -- RCRA Metals (6020/7471B/7196A) Arsenic <0.80 <0.80 10 Barium 170 170 21,000 Cadmium <1.0 <1.0 -- Chromium (total)<2.0 <2.0 -- Hexavalent Chromium <4.0 <4.0 -- Lead <2.0 <2.0 -- Mercury <0.10 <0.10 0.012 Selenium <10 <10 5 Silver <1.0 <1.0 -- Notes: 1) North Carolina Department of Environmental Quality's (DEQ's) 15A NCAC 02B Surface Water Quality Standards and Criteria for Class C waters (2B Standards) (September 22, 2017).With the exception of metals, only analytes with concentrations above the laboratory reporting limit are shown. Surface water concentrations are reported in micrograms per liter (µg/L). -- = not applicable; NE = not established; BRL = below laboratory reporting limit; RCRA = Resource Conservation and Recovery Act µg/L SW-1 NC 2B Standards(1) File: S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\EMP\Tables\Brownfields Assessment Tables 1,3,4_CNAD (BPN 22009-18-060)_20180827Brownfields Assessment Tables 1,3,4_CNAD (BPN 22009-18-060)_20180827 Date: 8/27/2018 Table 3 (Page 1 of 1) Hart & Hickman, PC Table 4 Summary of Sediment Analytical Data Charlotte Naval Ammo Depot Charlotte, North Carolina H&H Job No. CHK.006 Sample ID SED-1 SED-DUP-1 Sample Date 5/1/18 5/1/18 Range Mean Range Mean Ref. Units VOCs (8260B) ALL BRL ALL BRL -------------- SVOCs (8270D) Bis(2-Ethylhexyl)phthalate <0.44 0.37 39 160 ---------- RCRA Metals (6020/7471B/7196A) Arsenic 2.1 DL-15 2.2 DL-15 0.68 3.0 0.81-1.9 1.36 1.0-18 4.8 A Barium 190 DL-15 180 DL-15 3,100 47,000 180 180 50-1,000 356 A Cadmium 0.11 DL-15, J 0.1 DL-15, J 14.0 200 0.091-0.78 0.435 1.0-10 4.3 B Chromium (total)40 DL-15 44 DL-15 NS NS 35-43 39 7.0-300 65 A Trivalent Chromium 39.15 43.44 23,000 350,000 0.21-0.31 0.26 NS NS -- Hexavalent Chromium 0.85 DL-03, J 0.56 DL-03, J 0.31 6.5 34.79-42.69 38.74 NS NS -- Lead 10 DL-15 11 DL-15 400 800 5.8-14 9.9 BRL-50 16 A Mercury 0.016 B, J 0.011 B, J 2.3 9.7 0.022-0.025 0.024 0.03-0.52 0.121 A Selenium <1.9 DL-15 <1.8 DL-15 78 1,200 1.7-1.8 1.75 <0.1-0.8 0.42 A Silver 0.045 DL-15, J 0.052 DL-15, J 78 1,200 0.047-0.05 0.049 BRL-5.0 NS C Notes: J = compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in an estimated concentration B = analyte was detected in the associated laboratory blank as well as in the sample DL-03 = reporting limit elevated due to matrix DL-15 = sample required a dilution due to low internal standard recovery of the lesser diluted digestion, reporting limit is elevated mg/kg Industrial/ Commercial PSRG(1) Residential PSRG(1) Site-Specific Background Metals in Soil Laboratory analytical methods are shown in parentheses. -- = not applicable; NS= not specified; BRL = below laboratory reporting limit; RCRA = Resource Conservation and Recovery Act SED-1 Regional Background Metals in Soil(2) C. Soils of the conterminous USA With the exception of metals, only analytes with concentrations above the laboratory reporting limit are shown. Soil concentrations are reported in milligrams per killogram (mg/kg). B. Southeastern US soils 1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) (February 2018). 2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005. Ref. A. North Carolina soils File: S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\EMP\Tables\Brownfields Assessment Tables 1,3,4_CNAD (BPN 22009-18-060)_20180827Brownfields Assessment Tables 1,3,4_CNAD (BPN 22009-18-060)_20180827 Date: 8/27/2018 Table 4 (Page 1 of 1) Hart & Hickman, PC TITLE PROJECT SITE LOCATION MAP CHARLOTTE NAVAL AMMO DEPOTBROWNFIELDS PROJECT NO. 22009-18-0603100 NEVADA BOULEVARDCHARLOTTE, NORTH CAROLINA DATE: JOB NO: REVISION NO: FIGURE: 3-27-18 0 1CHK-006 SITE 0 2000 4000 APPROXIMATE SCALE IN FEETN U.S.G.S. QUADRANGLE MAP QUADRANGLE 7.5 MINUTE SERIES (TOPOGRAPHIC) FORT MILL, NORTH CAROLINA, 1996 CORD A G E S T R E E T BROO K F O R D S T R E E T VERSAR26 IW-18 IW-6 IW-7 IW-8 IW-9 IW-10 IW-11 IW-14 IW-5 IW-4 IW-3 IW-2 IW-1 IW-19 BG-1 BG-2 SB-4 SB-5 SB-1 SB-2SB-3 NADMW36 VERSAR22 NADMW65 NADMW38 NADMW66 NADMW57 NADMW58 NADMW37 SW-1/ SED-1 REVISION NO. 0 JOB NO. CHK-006 DATE: 7-2-18 FIGURE NO. 2 CHARLOTTE NAVAL AMMO DEPOT BROWNFIELDS PROJECT NO. 22009-18-060 3100 NEVADA BOULEVARD CHARLOTTE, NORTH CAROLINA SAMPLE LOCATION MAP LEGEND SITE PROPERTY BOUNDARY SURFACE WATER FEATURE PROPOSED BUILDING FOOTPRINT FORMER LOCATION OF CHARLOTTE NAVAL AMMUNITION DEPOT BUILDING 1-81 MONITORING WELL LOCATION2 BEDROCK MONITORING WELL LOCATION2 ABANDONED MONITORING WELL LOCATION2 INJECTION WELL LOCATION2 SURFACE WATER/ SEDIMENT SAMPLE LOCATION (H&H; 5/2018) SOIL BORING LOCATION (H&H; 5/2018) BACKGROUND SOIL SAMPLE LOCATION (H&H; 5/2018) 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology NOTES: 1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG CO. GIS DEPARTMENT (2017). 2.MONITORING WELL & INJECTION WELL LOCATIONS ARE APPROXIMATE AND BASED ON PIKA-PIRNIE JV, LLC'S REMEDIAL ACTION & PERFORMANCE MONITORING REPORT (MARCH 2017).NEVADA BOULEVARD CORD A G E S T R E E T BROO K F O R D S T R E E T VERSAR26 IW-18 IW-6 IW-7 IW-8 IW-9 IW-10 IW-11 IW-14 IW-5 IW-4 IW-3 IW-2 IW-1 IW-19 NADMW36 VERSAR22 NADMW65 NADMW38 NADMW66 NADMW57 NADMW58 NADMW37 REVISION NO. 0 JOB NO. CHK-006 DATE: 7-2-18 FIGURE NO. 3 CHARLOTTE NAVAL AMMO DEPOT BROWNFIELDS PROJECT NO. 22009-18-060 3100 NEVADA BOULEVARD CHARLOTTE, NORTH CAROLINA AREAS OF CONCERN - GROUNDWATER MAP LEGEND SITE PROPERTY BOUNDARY SURFACE WATER FEATURE PROPOSED BUILDING FOOTPRINT FORMER LOCATION OF CHARLOTTE NAVAL AMMUNITION DEPOT BUILDING 1-81 MONITORING WELL LOCATION2 BEDROCK MONITORING WELL LOCATION2 ABANDONED MONITORING WELL LOCATION2 INJECTION WELL LOCATION2 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology NOTES: 1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG CO. GIS DEPARTMENT (2017). 2.MONITORING WELL & INJECTION WELL LOCATIONS ARE APPROXIMATE AND BASED ON PIKA-PIRNIE JV, LLC'S REMEDIAL ACTION & PERFORMANCE MONITORING REPORT (MARCH 2017). 3.CONCENTRATIONS IN BOLD INDICATE CONCENTRATION EXCEEDS THE TITLE 15A NORTH CAROLINA ADMINISTRATIVE CODE 02L.0202 GROUNDWATER QUALITY STANDARD (APRIL 2013) (2L) OR INTERM MAXIMUM ALLOWABLE CONCENTRATIONS (APRIL 2018). 4.UNDERLINED CONCENTRATIONS INDICATE AN EXCEEDANCE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY (NCDEQ) NON-RESIDENTIAL VAPOR INTRUSION GROUNDWATER SCREENING LEVELS (FEBUARY 2018).NEVADA BOULEVARD NADMW-38 3/28/2018 cis-1,2-DICHLOROETHENE 1.9 TRICHOROETHYLENE 39 VINYL CHLORIDE <1.0 CONSTITUENT CONCENTRATION IN MICROGRAMS PER LITER (μg/L) SAMPLE ID & DATESAMPLE TYPENADMW-38 3/28/2018 cis-1,2-DICHLOROETHENE 1.9 μg/L TRICHOROETHYLENE 39 μg/L VINYL CHLORIDE <1.0 μg/L NADMW-58 3/25/2018 cis-1,2-DICHLOROETHENE 2,300 μg/L TRICHOROETHYLENE 350 μg/L VINYL CHLORIDE 93 μg/L NADMW-66 3/25/2018 cis-1,2-DICHLOROETHENE 6.5 μg/L TRICHOROETHYLENE 32 μg/L VINYL CHLORIDE <1.0 μg/L Appendix A Current Redevlopment Plan CORDAGE STREETWB-67 - Interstate Semi-TrailerR:\Drawings\2018 Projects\Cordage Street\cordage3.12.18.dwg, 3/13/2018 9:51:40 AM, 1:40 Appendix B Current Construction Schedule IDTask NameDurationStartFinish% CompletePredecessors1Design125 daysMon 3/12/18Fri 8/31/18100%2Civil Design125 daysMon 3/12/18Fri 8/31/18100%3Site Concept Plan0 daysMon 3/12/18Mon 3/12/18100%4Site plan/Mass Grading35 daysMon 7/2/18Fri 8/17/18100%3,20SS+10 days5Permit/construction set10 daysMon 8/20/18Fri 8/31/18100%46Architectural/Structural Design33 daysFri 6/29/18Tue 8/14/18100%7Elevation and Floor Plan Schematic8 daysFri 6/29/18Tue 7/10/18100%8Design Development10 daysWed 7/11/18Tue 7/24/18100%79Permit/construction set15 daysWed 7/25/18Tue 8/14/18100%810Design/Build MEP18 daysWed 7/18/18Fri 8/10/18100%1130% progress set4 daysWed 7/18/18Mon 7/23/18100%7FS+5 days1260% progress set8 daysTue 7/24/18Thu 8/2/18100%1113Permit/construction set6 daysFri 8/3/18Fri 8/10/18100%1214Permitting127 daysMon 6/18/18Tue 12/11/1849%15Brownfield Assessment Submittal EMP for Review and Approval15 daysWed 10/10/18Tue 10/30/180%16Design of Vapor Mitigation Plan40 daysWed 8/15/18Tue 10/9/180%917Agency Vapor Mitigation Plan Review & Approval30 daysWed 10/10/18Tue 11/20/180%1618Brownfield Assessment Well Asessment0 daysTue 11/20/18Tue 11/20/180%1719Wetland - NP85 daysMon 6/18/18Fri 10/12/18100%20Confirm Delineation w/Corp20 daysMon 6/18/18Fri 7/13/18100%21Submittal/Review Period35 daysMon 8/27/18Fri 10/12/18100%20,4FS+5 days22County Stream Buffer Impact30 daysMon 7/16/18Fri 8/24/18100%2023Land Development65 daysFri 7/13/18Fri 10/12/1890%24Pre-submittal Meeting0 daysFri 7/13/18Fri 7/13/18100%2025City Engineering30 daysMon 9/3/18Fri 10/12/1890%24,526Building Standards30 daysTue 10/30/18Tue 12/11/180%27On Schedule Review Date0 daysTue 10/30/18Tue 10/30/180%13,5,1528City Review Period15 daysWed 10/31/18Tue 11/20/180%2729Second Submittal5 daysWed 11/21/18Tue 12/11/180%2830Receive Building Permit0 daysTue 12/11/18Tue 12/11/180%2931RTAP Vapor Mitigation Plan10 daysWed 11/21/18Tue 12/4/180%1732Bid Period24 daysWed 10/31/18Mon 12/3/180%33Bid Invite5 daysWed 10/31/18Tue 11/6/180%34General Contractor5 daysWed 10/31/18Tue 11/6/180%5,13,1535Bid period12 daysWed 11/7/18Thu 11/22/180%34,5,936Bid award 7 daysFri 11/23/18Mon 12/3/180%3537Construction160 daysTue 12/4/18Mon 7/15/190%38Site Work45 daysTue 12/4/18Mon 2/4/190%36,23,21,1539Shell Construction145 daysTue 12/25/18Mon 7/15/190%30,38SS+15 days3/1211/207/1310/3012/11FebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJulAugSepCordage StOctober 9, 2018 Page 1Childress Klein Appendix C Cut/Fill Analysis (Heat Map) CORDAGE STREETW W W W W W W W W W W WWWWWWWWWWWWWWWWWWWWWWWWWWWWWW W W W WWWWWW W W W W W W W W W W W W W W W W W W W W W W W W WW WWWW WW W W W W W W W W W W W W W W W W W W W W W W W W WW WWWW WW W W W W W W W W W W W W W W W W W W W W W W W WWWWWW W W W W W W W W W W W W W W W W W W W W W W W W WW WWWW WW W W W W W W W W W W W W W W W W W W W W W W W W WW WWWW WW W W W W W W W W W W W W W W W W W W W W W W W W WWWWWW W W W W W W W W W W W W W W W W W W W W W W W W W WWWWWW W W W W W W W W W W W W W W W W W W W W W W W W WW WWWW WW W W W W W W WWWWWWWW W W W W W W W W W W W WWWWWWWWWWWWWW W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W WWWWWWWW LEGEND+10' CUT-10' FILL Appendix D Current Grading Plan CORDAGE STREETtrib 5trib 1trib 1trib 1trib 5trib 3trib 4trib 1trib 1trib 1trib 5trib 5trib 3trib 4>> 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+00 13+00 14+00 15+00 16+00 16+67 0+50 1+50 2+50 3+50 4+50 5+50 6+50 7+50 8+50 9+50 10+50 11+50 12+50 13+50 14+50 15+50 16+50500-K Clanton Road Charlotte, NC 28217 Phone: 704.525.2003 Fax: 704.525.2051 www.geosciencegroup.comR:\Drawings\2018 Projects\Cordage Street\cordage8.15.18.dwg, 8/22/2018 12:09:52 PM, 1:50