Loading...
HomeMy WebLinkAbout17038 Goodyear EMP Final 2018010161 EMP Form ver.1, October 23, 2014 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 project manager for the program. Prospective Developers and/or their consultants must complete and submit this form and all pertinent attachments to their project manager prior to any site earthmoving or other development related activities. For the resultant EMP to be valid for use, it must be completed, reviewed by the program, and signed by all signers at the bottom. Consult your project manager if you have questions. GENERAL INFORMATION Date: 1/16/2018 Brownfields Assigned Project Name: Former Goodyear Service Center Brownfields Project Number: 17038-13-060 Brownfields Property Address: 100 & 122 E. Stonewall St.; 615 S. Tryon St., and 600 South College St. Brownfields Property Area (acres): Approximately 3.536 Is Brownfields Property Subject to RCRA Permit? ☐ Yes ☒ No If yes enter Permit No.: Click here to enter text. Is Brownfields Property Subject to a Solid Waste Permit? ☐ Yes ☒ No If yes, enter Permit No.: Click here to enter text. COMMUNICATIONS Prospective Developer (PD): Crescent South Tryon, LLC Phone Numbers: Office: 980-321-6161 …..Mobile: 704-235-8946 Email: EMcMillan@crescentcommunities.com Primary PD Contact: Elizabeth A. McMillan Phone Numbers: Office: 980-321-6161 Mobile: 704-235-8946 Email: Environmental Consultant: ECS Carolinas LLP Phone Numbers: Office: 336-856-7150…..Mobile: 336-880-9370 Email: jstewart1@ecslimited.com Brownfields Program Project Manager: Carolyn Minnich Office: 704-661-0330 2 EMP Form ver.1, October 23, 2014 Email: Carolyn.minnich@ncdenr.gov Other DENR Program Contacts (if applicable, i.e., UST Section, Inactive Hazardous Site Branch, Hazardous Waste, Solid Waste): N/A NOTIFICATIONS TO THE BROWNFIELDS PROGRAM Advance Notification Times to Brownfields Project Manager: Check each box to accept minimum notice periods (in calendar days) for each type of onsite task: On-site assessment or remedial activities: Within 10 days ☒ Construction or grading start: Within 10 days ☒ 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, venting of explosive environments): Within 48 hours ☒ Installation of mitigation systems: Within 10 days ☒ 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: Hotel and Parking 2) Summary of Redevelopment Plans (attach conceptual or detailed plans as available): a) Do plans include demolition of structure(s)?: ☒ Yes ☐ No ☐ Unknown b) Do plans include removal of building foundation slab(s) or pavement: ☒ Yes ☐ No ☐ Unknown c) Provide brief summary of redevelopment plans, including demolition, removal of building slabs/pavement and other structures: The existing building and slabs will be removed. The site is anticipated to be excavated for installation of sub-grade parking. The redevelopment is anticipated to include office, a hotel, ground floor retail, a courtyard, multi-level parking deck, and potentially multi-family residential (Exhibit A – Architectural Site Plan G021). The Brownfields Agreement precludes residential use of the redevelopment’s ground floor without prior approval from NCDEQ. 3) Which category of risk-based screening level is used or is anticipated to be specified in the Brownfields Agreement? 3 EMP Form ver.1, October 23, 2014 ☒ Residential ☒ Non-residential or Industrial/Commercial Note: If children frequent the property, residential screening levels shall be cited in the Brownfields Agreement for comparison purposes. 4) Schedule for Redevelopment (attach construction schedule): a) Phase I start date and anticipated duration (specify activities during each phase): 1/2/2018 Redevelopment is anticipated to start in January 2018. The following construction benchmarks include demolition of the remaining two building (between January/April 2018), mass excavation (begin February 2018), place intial concrete (March 2018), and place initial steel (July 2018). Final schedule is dependent on remaining property closing. b) If applicable, Phase 2 start date and anticipated duration (specify activities during each phase): Click here to enter a date. No Phase II development expected c) Additional phases planned? If yes, specify activities if known: ☐ Yes ☐ No ☐ Not in the foreseeable future ☒Decision pending d) Provide the planned date of occupancy for new buildings: 8/1/2020 CONTAMINATED MEDIA Contaminated Media (attach tabulated data summaries for each impacted media and figure(s) with sample locations): 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 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 specific compounds): Contaminant concentrations vary across the site from below Protection of Groundwater PSRG concentrations to slightly above Industrial PSRGs. Known contaminants in soil above the IHSB Preliminary Industrial Health-Based Soil Remediation Goals include arsenic, chromium VI, benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, dibenzo(a,h)anthracene, and indeno(1,2,3- 4 EMP Form ver.1, October 23, 2014 cd)pyrene (Exhibit B – Certified Plat, Exhibit C - Soil Exceedances Table based on 2016 PSRGs, and Exhibit G – 10/2017 Soil Analysis Table). Should unidentified tanks, drums, or other waste be identified during site grading, Exhibit D - Contingency Procedures for Encountering Unknown Tanks, Drums, or Other Waste Materials will be followed. 2) Depth of known or suspected contaminants (feet): These constituents were identified in samples taken between 2 and 18 feet bgs. 3) Area of soil disturbed by redevelopment (square feet): ~172,000 4) Depths of soil to be excavated (feet): Estimate to top of partially weathered rock 10 to 15 feet 5) Estimated volume of soil (cubic yards) to be excavated (attach grading plan): ~35,000 -50,000 6) Estimated volume of excavated soil (cubic yards) anticipated to be impacted by contaminants: ~1,000 7) Estimated volume of contaminated soil expected to be disposed of offsite, if applicable: ~1,000 yards prior to site development. IMPORTED FILL SOIL 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 grading plan is attached as Exhibit E. 3) If yes, what is the depth of fill soil to be used at the property? If a range of depths, please list the range. 4) PRIOR TO ITS PLACEMENT AT THE BROWNFIELDS PROPERTY, provide plan to analyze fill soil to demonstrate that it meets acceptable standards and can be considered clean for use at the Brownfields property (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 (speciated), mercury, lead, selenium and silver) ☐ Metals –Hazardous Substance List -14 (antimony, arsenic, beryllium, cadmium, chromium (speciated according to IHSB protocol), copper, lead, manganese, mercury, nickel, selenium, silver, thallium, and zinc) ☐ Metals – EPA Priority Pollutant List – 13 (arsenic, beryllium, cadmium, chromium (speciated according to IHSB protocol), copper, mercury, nickel, lead, antimony, selenium, silver, thallium, and zinc) ☐ Other Constituents & Analytical Method: Click here to enter text. ☐ Known borrow material (DESCRIBE SOURCE AND ATTACH SAMPLING PROFILE): Click here to enter text. MANAGING ONSITE SOIL 1) If soil in known or suspected areas of contamination 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 5 EMP Form ver.1, October 23, 2014 areas of cut and fill (approximate areas & volumes are acceptable, if only preliminary data available). 2) HAZARDOUS WASTE DETERMINATION – 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 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 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 DENR HAZARDOUS WASTE SECTION RULES AND REGULATIONS. 3) HAZARDOUS WASTE DETERMINATION – Does the soil contain a CHARACTERISTIC WASTE?: ☐ Yes ☒ No If yes, mark reason(s) why below (and include pertinent analytical results). ☐ Ignitability ☐ Corrosivity ☐ Reactivity ☐ Toxicity ☐ TCLP results ☐ 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) If no, explain rationale: Sampling indicates that the most significant contamination consists of low level petroleum contamination and low concentrations of arsenic (likely naturally occurring) present in soil from historic automotive operations (Exhibit C). Sampling has not detected consituents that could be deemed hazardous through the Rule of 20 or other measures. 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 DENR HAZARDOUS WASTE SECTION RULES AND REGULATIONS. 4) 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 Click here to enter a date. ☒ Preliminary Health-Based Industrial/Commercial SRGs 10/1/2017 ☐ Site-specific risk-based cleanup level, or acceptable concentrations determined via calculated cumulative risk. Enter details of methods used for determination/explanation: Click here to enter text. 6 EMP Form ver.1, October 23, 2014 5) Check the following action(s) to be taken during excavation and management of said soils: ☒ Manage fugitive dust from site: ☒ Yes ☐ No If yes, describe method; If no, explain rationale: PD will use typical construction measures involving a water truck spray as necessary to address visible dust. However, because the constituents of concern are primarily VOCs and SVOCs that typically vaporize rather than posing a dust problem, PD does not propose any additional dust management measures. ☒ Field Screening: ☒ Yes ☐ No If yes, describe method; If no, explain rationale: Soils to be removed from the Goodyear portion of the site will be monitored by an environmental professional via human sensory observations, including for staining, odors, debris, or other indications of contamination. Soils in areas of known impacts, or soils where chemical odors are detected, will be screened with a photoionization detector (PID) during excavation in those areas in order to evaluate the potential need for sampling. Soils to be removed from the remainder of the site will be monitored by the onsite contractor via human sensory observations, including for staining, odors, debris, or other indications of contamination. If indications of impacted soil are detected, then the onsite contractor will call ECS. ☒ Soil Sample Collection: ☒ Yes ☐ No If yes, describe method (e.g., in-situ grab, composite, stockpile, etc.); If no, explain rationale: Soil sampling data exists and has characterized the areas at the site where impacted soils are present. However, if additional impacts are discovered during grading activities, soils will be managed in accordance with Part 9. ☒ Stockpile impacted soil in accordance with NCDENR IHSB protocol in the current version of the “Guidelines for Assessment and Cleanup”, and providing erosion control, prohibiting contact between surface water/precipitation and contaminated soil, and preventing contaminated runoff. Explain any variances: Click here to enter text. ☒ Analyze potentially impacted soil for the following 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 (speciated), mercury, lead, selenium and silver) ☐ Metals –Hazardous Substance List -14 (antimony, arsenic, beryllium, cadmium, chromium (speciated according to IHSB protocol), copper, lead, manganese, mercury, nickel, selenium, silver, thallium, and zinc) ☐ Metals – EPA Priority Pollutant List – 13 (arsenic, beryllium, cadmium, chromium (speciated according to IHSB protocol), copper, mercury, nickel, lead, antimony, selenium, silver, thallium, and zinc) ☐ Other Constituent(s) & Analytical Method(s): Click here to enter text. 7 EMP Form ver.1, October 23, 2014 ☒ Proposed Measures to Obtain Pre-Approval for Reuse of Impacted Soil within the Brownfields Property Boundary ☒ 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 ☐ Use geotextile to mark depth of fill material (provide description of material) ☒ Manage soil under impervious cap ☒ or clean fill ☒ Describe cap or fill: Clean fill from elsewhere or off site or building or concrete cap (provide location diagram) ☒ Confer with NC BF Project Manager if Brownfield Plat must be revised (or re- recorded if actions are Post-Recordation). ☐ Other: Click here to enter text. ☒ Final grade sampling of exposed soil (i.e., soil that will not be under buildings or permanent hardscape): [if not checked provide rationale for not needing] Provide diagram of soil sampling locations, number of samples, and denote Chemical Analytical Program 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 (speciated), mercury, lead, selenium and silver) ☐ Metals –Hazardous Substance List -14 (antimony, arsenic, beryllium, cadmium, chromium (speciated according to IHSB protocol), copper, lead, manganese, mercury, nickel, selenium, silver, thallium, and zinc) ☐ Metals – EPA Priority Pollutant List – 13 (arsenic, beryllium, cadmium, chromium (speciated according to IHSB protocol), copper, mercury, nickel, lead, antimony, selenium, silver, thallium, and zinc) ☐ Pesticides ☐ PCBs ☐ Other Constituents & Analytical Method: Click here to enter text. OFFSITE TRANSPORT & DISPOSITION OF EXCAVATED SOIL NOTE: Unless soil will be transported offsite for disposal in a permitted facility under applicable regulations, no contaminated or potentially contaminated soil may leave the site without approval from the brownfields program. Failure to obtain approval may violate a brownfields agreement, endangering liability protections and making said action subject to enforcement. Justifications provided below must be approved by the Program in writing prior to completing transport activities. ☒ Transport and dispose of impacted soil offsite (documentation of final disposition must be sent to Brownfields Project Manager) ☒ Landfill – analytical program determined by landfill ☒ Landfarm or other treatment facility To Be Determined. Off-site disposal of impacted soils, if required, will be considered in connection with the Brownfields project manager or the NCDEQ Solid Waste division in accordance with all applicable regulations. ☒ Use as Beneficial Fill Offsite – provide justification: Charlotte Douglas International Airport. The airport has agreed that soil which does not contain contaminants above the IHSB Protection of Groundwater PSRGs will be accepted by the airport. These include deep soil from Areas 5, 6, and 7 and both shallow and deep soil from Areas 1, 2, and 3 meet this criteria (Areas shown on 8 EMP Form ver.1, October 23, 2014 Exhibit H). This option has been approved by the Brownfields project manager. Only soil discussed above will go to the airport assuming no impacts are identied in the field by the contractor and/or by an ECS employee. ☒ Use as Beneficial Fill at another Suitable Brownfields Site – (Note: a determination that a site is a “Suitable Brownfields” site will require, at a minimum, that similar concentrations of the same or similar contaminants already exist at both sites, use of impacted soil as beneficial soil will not increase the potential for risk to human health and the environment at that site, and that notarized documentation of the acceptance of such soil from the property owner of the receiving site is provided to Brownfields. Provide justification: The Brownfield’s Program has indicated that up to 10,000 cubic yards of soil could be transported to the Radiator Specialty Tract E2120 site (BF Number 21032-17-060) located at 2140 Suttle Ave, 2016, 2024, 2108 Wilkinson Blvd in Charlotte. Acceptance of the soil at this site will be dependent upon geotechnical characteristics of the soil and timing of the soil export. Other locations could be added as approved by the Brownfields Project Managers. 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? Result: Yes □ No □ If no, include rationale here. If yes, provide specifications on barrier materials Other comments regarding managing impacted soil in utility trenches: During redevelopment, soils in utility chases will be overexcavated and backfilled with clean fill, so that after construction, utility chases may be disturbed without further contact with the Brownfields Program. Soil excavated during utility placement on the Goodyear parcel will either be placed back into the excavation assuming it is sutible as fill, placed in to the “Area of Known Soil Contamination – as shown on the Revised BF Plat” and then covered with clean fill and/or hard scape, or taken off site to the Republic Landfill in Concord, North Carolina. PART 2. GROUNDWATER – Please fill out the information below and attach figure showing distribution of groundwater contaminants at site What is the depth to groundwater at the Brownfields Property? ~ >50’ Is groundwater known to be contaminated by ☐onsite ☐ offsite ☐ both ☒ or unknown sources? Describe source(s): No petroleum compounds were detected in groundwater. Chlorinated solvents were detected in groundwater (within rock); however, chlorinated solvents were not detected in site soils and may be attributed to an off-site source (Exhibit B – Revided Plat and Exhibit C 9 EMP Form ver.1, October 23, 2014 – Groundwater Exceedances Table). The site is in an urban area with multiple contaminated sites nearby that could be contributing to groundwater contamination. What is the direction of groundwater flow at the Brownfields Property? Undetermined; prior groundwater measurements were not conclusive, and several dewatering sites are located in the vicinity. Will groundwater likely be encountered during planned redevelopment activities? ☐ Yes ☒ No If yes, describe these activities: Based on current planned depth of subgrade parking and need to blast into rock, groundwater is not anticipated to be encountered based on the current site development plan. 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, or sampling procedures): Contaminated groundwater is not expected to be encountered as excavations will not intersect the groundwater in the bedrock. If groundwater is intersected during construction, it should be allowed to re-infiltrate for approximately 24 hours (if it does not affect the construction schedule) or the groundwater should be removed so that construction activities may proceed. The City of Charlotte/Mecklenburg County have agreed that groundwater can be discharged under their NPDES Permit to discharge stormwater. PART 3. SURFACE WATER – Please fill out the information below. Attach a map showing the location of surface water at the Brownfields Property. Is surface water at the property known to be contaminated: ☐ Yes ☒ No Will workers or the public be in contact with surface water during planned redevelopment activities? ☐ Yes ☒ No 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): There is no surface water located at the property. Excavations and trenches on the Goodyear portion of the site where potentially impacted soils could be encountered shall be graded, bermed, or provided with an equivalent barrier where necessary to help prevent stormwater from entering mass excavations elsewhere on the site and stormwater run-off from leaving the site boundaries. Any retrieved water from the Goodyear portion of the site will be containerized or diverted to an on-site stormwater management basin where the water will be sampled for disposal characterization before it is allowed to leave the site. Based on the types of contaminants documented on the site, water samples will be analyzed for VOCs and SVOCs. If containerized water is determined to be above regulatory standards, the Brownfields Project Manager will be contacted and the water will be disposed in accordance with regulatory requirements. Stormwater which collects in the mass excavation (remainder of site where excavations are taking place for below grade parking) and soil sampling has shown the soil is clean, will be discharged under the City of Charlotte’s/Mecklenburg Couunty’s NPDES Permit to discharge stormwater. 10 EMP Form ver.1, October 23, 2014 PART 4. SEDIMENT – Please fill out the information below. Is sediment at the property known to be contaminated: ☐ Yes ☒ No Will workers or the public be in contact with sediment during planned redevelopment activities? ☐ Yes ☒ No If yes, attach a map showing location of known contaminated sediment at the property. In the event that contaminated sediment is encountered during redevelopment activities, list activities for management of such events (stream bed disturbance): Click here to enter text. PART 5. SOIL VAPOR – Please fill out the information below. Do concentrations of volatile organic compounds at the Brownfields property exceed the following vapor intrusion screening levels 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 Attach a map showing the location of soil vapor contaminants that exceed site screening levels. If applicable, at what depth(s) is soil vapor known to be contaminated? Unknown Will workers encounter contaminated soil vapor during planned redevelopment activities? ☐ Yes ☐ No ☒ Unknown 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: Remove workers from area until the vapor concentrations can be determined, use engineering controls; i.e. fans to reduce vapor concentrations. PART 6. SUB-SLAB SOIL VAPOR -please fill out the information below if existing buildings or foundations will be retained in the redevelopment. Are sub-slab soil vapor data available for the Brownfields Property? ☒ Yes ☐ No ☐ Unknown If data indicate that sub-slab soil vapor concentrations exceed screening levels, attach a map showing the location of these exceedances. 11 EMP Form ver.1, October 23, 2014 At what depth(s) is sub-slab soil vapor known to be contaminated? ☐ 0-6 inches ☒ Other, If other describe: 5 feet Will workers encounter contaminated sub-slab soil vapor during planned redevelopment activities? ☐ Yes ☐ No ☒ Unknown In the event that contaminated soil vapor is encountered during redevelopment activities, list activities for management of such contact: ECS will monitor redevelopment activities and will work with the Project Manager to implement appropriate protections. Vapors will be evaluated, as discussed in Part 5. Soil Vapor Intrusion Barriers (SVIBs) could be installed during construction to prevent VOCs or gases from collecting beneath and in the on-site buildings. An SVIB acts as an engineered barrier that mitigates the potential inhalation exposure pathway. If an SVIB is required, the vapor barrier installer shall conduct the installation of the SVIB in accordance with Occupational Safety and Health Administration (OSHA) requirements for worker safety. The SVIB will be designed by a North Carolina licensed engineer following the NCDWM guidance. PART 7. INDOOR AIR – Please fill out the information below . Are indoor air data available for the Brownfields Property? ☐ Yes ☒ No ☐ Unknown If yes, attach a map showing the location where indoor air contaminants exceed site screening levels. 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 In the event that contaminated indoor air is encountered during redevelopment activities, list activities for management of such contact: N/A – Structures to be demolished PART 8 – Vapor Mitigation System – Please fill out the information below . Is a vapor intrusion mitigation system proposed for this Brownfields Property? ☐ Yes ☐ No ☒ Unknown If yes, provide the date the plan was submitted to the Brownfields Program. A soil vapor plan has not been prepared at this time. If a barrier or other mitigation is necessary, ECS will prepare a plan for the Project Manager’s approval. ECS will also review and comment on the design specifications, and will monitor the installation and testing. Attach the plan. Has the vapor mitigation plan been approved by the NC Brownfields Program? ☐ Yes ☒ No ☐ Unknown 12 EMP Form ver.1, October 23, 2014 Has the vapor mitigation plan been signed and sealed by a North Carolina professional engineer? ☐ Yes ☒ No What are the components of the vapor intrusion mitigation system? ☐ Sub-slab depressurization system ☐ Sub-membrane depressurization system ☐ Block-wall depressurization system ☐ Drain tile depressurization system ☐ Passive mitigation methods ☐ Vapor barriers ☐ Perforated piping vented to exterior ☐ Other method: To Be Determined PART 9. CONTINGENCY FOR ENCOUNTERING UNKNOWN TANKS, DRUMS, OR OTHER WASTE MATERIALS Please provide a contingency plan in the event unknown tanks, drums, fuel lines, landfills, or other waste materials are encountered during site activities. 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 Notification to State 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. See Notification Section on Page 1 for notification requirements. POST-REDEVELOPMENT REPORTING In accordance with the site’s Brownfield Agreement, provide a report within the designated schedule to the State Brownfields Project Manager. ☒ Check box to acknowledge consent to provide a redevelopment summary report in compliance with the site’s Brownfields Agreement. l:8J Check box to acknowledge consent to provide a redevelopment summary report in compliance with the site's Brownfields Agreement. Prospective Develo~ Printed Name/Title/Company Consultant Printed Name/Title/Company ~l-tvi m. Stewt."""" ?· o. Brownfields Project Manager (}_oJ o\~V\ (\f\ \ I'\(\\ J1\ EMP Form ver.1, October 23, 2014 APPROVAL SIGNATURES ~1-oY vp ~~Date CYl: .> ( ~ c.o~n.. L, t-11 17 c.::. Date 13 Project Number: 4113103Date: August 10, 2016Scale: 1"- 30'3015030Fax: (704) 376-2448Phone: (704) 376-7777Charlotte, NC 28202508 W. 5th St., Suite 125License No.: C-1925LDSIRevision 1:12-13-2017Add parcel 12512101 andadditional soil samples tomapPRELIMINARY 17038-13-060/Goodyear 2016-07-25 1 Exhibit C The most recent environmental sampling at the Property reported in the Environmental Reports occurred in August 2014.The following tables set forth, for contaminants present at the Property above unrestricted use standards or screening levels, the concentration found at each sample location, and the applicable standard or screening level. Screening levels and groundwater standards are shown for reference only and are not set forth as cleanup levels for purposes of this Agreement. GROUNDWATER Groundwater contaminants in micrograms per liter (the equivalent of parts per billion), the standards or screening levels for which are contained in Title 15A of the North Carolina Administrative Code, Subchapter 2L (2L), Rule .0202, (April 1 2013 version); or the 2L Groundwater Interim Maximum Allowable Concentrations (“IMACs”, October 1, 2010 version): Groundwater Contaminant Sample Location Date of Sampling Concentration Exceeding Screening Level (µg/L) 2L Standard (µg/L) Tetrachloroethylene TW-2 11/2/2013 3.4 0.7 Notes: 1. Screening limits displayed for non-carcinogens are for a hazard quotient equal to 0.2. Screening levels displayed for carcinogens are for a 1.0E-5 lifetime incremental cancer risk (LICR). SOIL Soil contaminants in milligrams per kilogram (the equivalent of parts per million), the screening levels for which are derived from the Preliminary Industrial Health- Based Soil Remediation Goals of the Inactive Hazardous Sites Branch of DEQ’s Superfund Section (April 2016 version): Soil Contaminant Sample Location Depth (ft) Date of Sampling Concentration Exceeding Screening Level (mg/kg) Industrial Screening Level1 (mg/kg) Arsenic SB2 4-8 04/29/2006 4.3 3 Arsenic SB3 8-12 04/29/2006 7.1 3 Arsenic GP-1* 8-10 10/26/2013 6.7 3 Arsenic GP-2* 17-18 10/26/2013 5.5 3 Arsenic GP-3* 13-14 10/26/2013 7.3 3 Arsenic GP-4* 12-13 10/26/2013 4.5 3 Arsenic GP-1 12 10/22/2013 4.4 3 Arsenic GP-5 8 10/22/2013 4.0 3 Arsenic GP-6 8 10/22/2013 11 3 17038-13-060/Goodyear 2016-07-25 2 Soil Contaminant Sample Location Depth (ft) Date of Sampling Concentration Exceeding Screening Level (mg/kg) Industrial Screening Level1 (mg/kg) Arsenic GP-7 16 10/22/2013 5.7 3 Arsenic GP-8 12 10/22/2013 3.7 3 Arsenic GP-10 8 10/22/2013 3.3 3 Arsenic GP-12 12 10/22/2013 3.2 3 Arsenic GP-13 8 10/22/2013 7.6 3 Arsenic GP-14 8 10/22/2013 4.3 3 Arsenic SB-01 2-4 03/13/2014 6.1 3 Arsenic SB-02 2-4 03/13/2014 5.75 3 Arsenic SB-03 2-4 03/13/2014 11.7 3 Arsenic SB-04 10-12 03/13/2014 6.04 3 Arsenic SB-05 10-12 03/13/2014 4.4 3 Arsenic SB-06 2-4 03/14/2014 3.75 3 Arsenic SB-07 2-4 03/13/2014 6.18 3 Arsenic SB-08 2-4 03/13/2014 7.39 3 Arsenic SB-09 2-4 03/13/2014 6.53 3 Arsenic SB-10 10-12 03/13/2014 4.28 3 Chromium VI GP-2 8 10/22/2013 6.87 6.3 Benzo(a)anthracene GP-6 8 10/22/2013 3.7 2.9 Benzo(a)anthracene GP-13 8 10/22/2013 5.0 2.9 Benzo(a)pyrene GP-6 8 10/22/2013 3.7 0.29 Benzo(a)pyrene GP-13 8 10/22/2013 5.6 0.29 Benzo(b)fluoranthene GP-6 8 10/22/2013 4.2 2.9 Benzo(b)fluoranthene GP-13 8 10/22/2013 6.4 2.9 Dibenzo(a,h)anthracene GP-6 8 10/22/2013 0.98 0.29 Dibenzo(a,h)anthracene GP-13 8 10/22/2013 0.97 0.29 Indeno(1,2,3-cd)pyrene GP-6 8 10/22/2013 3.1 2.9 Indeno(1,2,3-cd)pyrene GP-13 8 10/22/2013 4.8 2.9 1Screening levels displayed for non-carcinogens are for a hazard quotient equal to 0.2. Screening levels displayed for carcinogens are for a 1.0E-6 lifetime incremental cancer risk. *Boring locations on Goodyear Property installed by ECS Carolinas Exhibit D Contingency Procedures for Encountering Unknown Tanks, Drums, or Other Waste Materials The following contingency procedures will be followed upon discovery of an unknown source of contamination that may require remediation (such as unknown USTs, stained soil, drums, etc.), and the procedures for suspending excavation work, transferring any materials, and notifying applicable local, State and/or Federal agencies. The contingency procedures include the following: 1) If soils with staining or an odor, an underground tank, containers, or any other previously unidentified regulated constituent source are found during construction, grading or excavation, activities will be suspended until an adequate plan is implemented to address the unexpected condition. 2) PID readings will be taken. If PID readings are low and no other indications of contamination are present, site activities will proceed. If PID readings and other indicators suggest potential contamination is present, the materials will either be left in place or excavated and stockpiled in drums or on plastic sheeting. Sampling will be performed on the material to determine the nature of the material and proper disposal method. Chemical analysis will be performed by the environmental professional’s selected North Carolina Certified Laboratory consistent with the concern identified and will include analyses as appropriate based on discussions with the regulatory agency and disposal facility. 3) Identification of an unexpected condition will be promptly communicated to the NCDEQ Project Manager, and the Owner’s representative. The environmental consultant (ECS) should be notified immediately if unanticipated conditions are encountered during grading or site work. Excavated soil that is known or suspected of being contaminated shall be placed on plastic and covered with plastic to limit transfer of impacted materials by wind or rain. GRADING AND DRAINAGE PLANC400132.9153.00TRYON PLACEDESIGN DEVELOPMENT601 SOUTH TRYONCHARLOTTE, NCPROJECT MANAGERPRINCIPAL IN CHARGEDAVID POWLEN, RLA, LEEDDENNIS TERRY,RLA, LEEDPROJECT ARCHITECTCHRISTOPHER HOYT, AIA09.01.17NO.REASONDATELittle 2017c SOURCE: MECKLENBURG COUNTY GIS (POLARIS) SCALE AS SHOWN EXHIBIT F SOIL GAS SAMPLE LOCATIONS FORMER GOODYEAR SERVICE CENTER SOUTH TRYON STREET & EAST STONEWALL STREET CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-5350 Soil-Gas Sampling Location Yellow border represents slab on grade Blue border represents area to excavated SG-2 SG-6 SUMMARY OF SOIL ANALYTICAL RESULTS - VOCS Quadrants 1 through 4 Tryon Place East Stonewall Street, Charlotte, North Carolina Parameter Sample ID SB1-1S SB1-1D SB1-2S SB1-2D SB1-3S SB1-3D SB1-4S SB2-1S SB2-2S SB-Dup SB2-3S SB2-3D SB2-4S SB2-4D SB3-1S SB3-1D SB3-2S SB3-2D SB3-3S SB3-3D SB3-4S SB3-4D SB4-1S SB4-2S SB4-3S SB4-4S Collection Depth (feet bgs)5 12 5 14 5 11 5 5 5 5 5 9 5 14 5 13 5 14 5 15 5 15 5 5 5 5 Collection Date 10/15/17 10/14/17 Volatile Organic Compounds Acetone 0.052 <0.040 <0.038 <0.041 <0.039 <0.042 <0.0037 0.024 J 0.13 0.029J 0.029J <0.037 0.026 J <0.047 0.052 <0.044 0.049 <0.035 0.11 <0.036 0.08 <0.040 <0.040 0.075 0.11 <0.038 1,200 10,0000 25 Benzene <0.0027 <0.0024 <0.0023 <0.0025 <0.0023 <0.0025 <0.0022 <0.0027 <0.0026 <0.0024 <0.0025 <0.0022 <0.0021 <0.0028 <0.0021 <0.0026 <0.0028 <0.0021 <0.0028 <0.0022 <0.0022 <0.0024 <0.0024 0.0019 J <0.0028 <0.0023 1.2 5.4 0.001 Toluene <0.0044 <0.0040 <0.0038 <0.0041 <0.0039 <0.0042 <0.0037 <0.0045 <0.0043 <0.0041 <0.0042 <0.0037 <0.0034 <0.0047 <0.0035 <0.0044 <0.0046 <0.0035 <0.0046 <0.0036 <0.0037 <0.0040 <0.0040 0.0032 J <0.0046 <0.0038 820 820 8.3 2-Butanone <0.089 <0.080 <0.077 <0.082 <0.078 <0.084 <0.075 <0.089 <0.087 <0.081 <0.085 <0.075 <0.069 <0.094 <0.071 <0.087 <0.093 <0.070 <0.092 <0.072 <0.074 <0.079 <0.081 <0.088 <0.092 <0.076 5,500 28,000 17 1,2,4-Trimethylbenzene <0.0044 <0.0040 <0.0038 <0.0041 <0.0039 <0.0042 <0.0037 <0.0045 <0.0043 <0.0041 <0.0042 <0.0037 <0.0034 <0.0047 <0.0035 <0.0044 <0.0046 <0.0035 <0.0046 <0.0036 <0.0037 <0.0040 <0.0040 <0.0044 <0.0046 <0.0038 63 220 12 1,3,5-Trimethylbenzene <0.0044 <0.0040 <0.0038 <0.0041 <0.0039 <0.0042 <0.0037 <0.0045 <0.0043 <0.0041 <0.0042 <0.0037 <0.0034 <0.0047 <0.0035 <0.0044 <0.0046 <0.0035 <0.0046 <0.0036 <0.0037 <0.0040 <0.0040 <0.0044 <0.0046 <0.0038 56 180 11 4-Isopropyltoluene <0.0044 <0.0040 <0.0038 <0.0041 <0.0039 <0.0042 <0.0037 <0.0045 <0.0043 <0.0041 <0.0042 <0.0037 <0.0034 <0.0047 <0.0035 <0.0044 <0.0046 <0.0035 <0.0046 <0.0036 <0.0037 <0.0040 <0.0040 <0.0044 <0.0046 <0.0038 25 NS 1.24 m,p-Xylenes <0.0089 <0.0080 <0.0077 <0.0082 <0.0078 <0.0084 <0.0075 <0.0089 <0.0087 <0.0081 <0.0085 <0.0075 <0.0069 <0.0094 <0.0071 <0.0087 <0.0093 <0.0070 <0.0092 <0.0072 <0.0074 <0.0079 <0.0081 <0.0088 <0.0092 <0.0076 120 390 9.8 Methyl isobutyl ketone <0.044 <0.040 <0.038 <0.041 <0.039 <0.042 <0.037 <0.045 <0.043 <0.041 <0.042 <0.037 <0.034 <0.047 <0.035 <0.044 <0.046 <0.035 <0.046 <0.036 <0.037 <0.040 <0.040 <0.044 <0.046 <0.038 3,400 3,400 0.45 Naphthalene <0.0089 <0.0080 <0.0077 <0.0082 <0.0078 <0.0084 <0.0075 <0.0089 <0.0087 <0.0081 <0.0085 <0.0075 <0.0069 <0.0094 <0.0071 <0.0087 <0.0093 <0.0070 <0.0092 <0.0072 <0.0074 <0.0079 <0.0081 <0.0088 <0.0092 <0.0076 4.1 18 0.39 n-Butylbenzene <0.0044 <0.0040 <0.0038 <0.0041 <0.0039 <0.0042 <0.0037 <0.0045 <0.0043 <0.0041 <0.0042 <0.0037 <0.0034 <0.0047 <0.0035 <0.0044 <0.0046 <0.0035 <0.0046 <0.0036 <0.0037 <0.0040 <0.0040 <0.0044 <0.0046 <0.0038 110 110 4.5 n-Propylbenzene <0.0044 <0.0040 <0.0038 <0.0041 <0.0039 <0.0042 <0.0037 <0.0045 <0.0043 <0.0041 <0.0042 <0.0037 <0.0034 <0.0047 <0.0035 <0.0044 <0.0046 <0.0035 <0.0046 <0.0036 <0.0037 <0.0040 <0.0040 <0.0044 <0.0046 <0.0038 260 260 2.6 o-xylene <0.0044 <0.0040 <0.0038 <0.0041 <0.0039 <0.0042 <0.0037 <0.0045 <0.0043 <0.0041 <0.0042 <0.0037 <0.0034 <0.0047 <0.0035 <0.0044 <0.0046 <0.0035 <0.0046 <0.0036 <0.0037 <0.0040 <0.0040 <0.0044 <0.0046 <0.0038 140 430 9.8 Xylene, total <0.013 <0.012 <0.012 <0.012 <0.012 <0.013 <0.011 <0.013 <0.013 <0.012 <0.013 <0.011 <0.010 <0.014 <0.011 <0.013 <0.014 <0.011 <0.014 <0.011 <0.011 <0.012 <0.012 <0.013 <0.014 <0.011 120 260 9.9 sec-Butylbenzene <0.0044 <0.0040 <0.0038 <0.0041 <0.0039 <0.0042 <0.0037 <0.0045 <0.0043 <0.0041 <0.0042 <0.0037 <0.0034 <0.0047 <0.0035 <0.0044 <0.0046 <0.0035 <0.0046 <0.0036 <0.0037 <0.0040 <0.0040 <0.0044 <0.0046 <0.0038 150 150 4.1 Notes:Results presented in milligrams per kilogram (mg/kg), analogous to parts per million (ppm) Feet bgs = Feet below ground surface Bold denotes concentration exceeds the Residential PSRG J = Estimated concentration, below calibration range and above Method Detection Limit The standard for trivalent chromium used for total chromium, as recent sampling determined that the chromium present was trivalent, not hexavalent. Protection of groundwater PSRG Comparison CriteriaANALYTICAL RESULTS Unrestricted Use Health Base- Based PSRG Industrial Health- Based PSRG 1014/17 10/14/17 10/15/17 SUMMARY OF SOIL ANALYTICAL RESULTS - VOCS Quadrants 5 through 7 Tryon PlaceEast Stonewall Street, Charlotte, North Carolina Parameter Sample ID SB5-1S SB5-1D SB5-2S SB5-3S SB5-4S SB5-4D SB6-1S SB6-1D SB6-2S SB6-2D SB6-3S SB6-3D SB6-4S SB6-4D SB7-1S SB7-1D SB7-2S SB7-2D SB7-3S SB7-3D SB7-4S SB7-4D Collection Depth (feet bgs)5 9 5 5 5 11 5 14 5 13 5 11 5 17 5 14 5 10 5 15 5 14 Collection Date Volatile Organic Compounds Acetone 0.062 <0.049 <0.042 0.062 0.064 0.022 J 0.15 0.18 0.036 <0.043 0.16 0.022 J 0.11 <0.043 0.041 <0.040 0.020 J <0.055 0.012 J <0.039 0.11 <0.051 1,200 10,0000 25 Benzene <0.0026 <0.0030 <0.0025 <0.0027 <0.0024 <0.0026 <0.0026 <0.0023 <0.0021 <0.0026 0.0020 J <0.0026 0.0028 <0.0026 <0.0021 <0.0024 <0.0022 <0.0033 <0.0023 <0.0023 <0.0026 <0.0031 1.2 5.4 0.001 Toluene <0.0043 <0.0049 <0.0042 <0.0044 <0.0039 <0.0044 <0.0044 <0.0038 <0.0035 <0.0043 <0.0036 <0.0044 <0.0045 <0.0043 <0.0035 <0.0040 <0.0037 <0.0055 <0.0039 <0.0039 <0.0043 <0.0051 820 820 8.3 2-Butanone <0.086 <0.099 <0.084 <0.089 <0.079 <0.087 <0.088 <0.075 <0.089 <0.086 0.018 J <0.087 <0.090 <0.086 <0.070 <0.079 <0.073 <0.11 <0.078 <0.077 <0.086 <0.10 5,500 28,000 17 1,2,4-Trimethylbenzene <0.0043 <0.0049 <0.0042 <0.0044 <0.0039 <0.0044 <0.0044 0.010 A <0.0035 <0.0043 <0.0036 <0.0044 <0.0045 <0.0043 <0.0035 <0.0040 <0.0037 <0.0055 <0.0039 <0.0039 <0.0043 <0.0051 63 220 12 1,3,5-Trimethylbenzene <0.0043 <0.0049 <0.0042 <0.0044 <0.0039 <0.0044 <0.0044 0.0044 A <0.0035 <0.0043 <0.0036 <0.0044 <0.0045 <0.0043 <0.0035 <0.0040 <0.0037 <0.0055 <0.0039 <0.0039 <0.0043 <0.0051 56 180 11 4-Isopropyltoluene <0.0043 <0.0049 <0.0042 <0.0044 <0.0039 <0.0044 <0.0044 0.011 A <0.0035 <0.0043 <0.0036 <0.0044 <0.0045 <0.0043 <0.0035 <0.0040 <0.0037 <0.0055 <0.0039 <0.0039 <0.0043 <0.0051 25 NS 1.24 m,p-Xylenes <0.0086 <0.0099 <0.0084 <0.0089 <0.0079 <0.0087 <0.0088 0.0018 A,J <0.0069 <0.0086 <0.0072 <0.0087 <0.0090 <0.0086 <0.0070 <0.0079 <0.0073 <0.011 <0.0078 <0.0077 <0.0086 <0.010 120 390 9.8 Methyl isobutyl ketone <0.043 <0.049 <0.042 <0.044 <0.039 <0.044 <0.044 0.0076 J <0.035 <0.043 <0.036 <0.044 <0.045 <0.043 <0.070 <0.040 <0.037 <0.055 <0.039 <0.039 <0.043 <0.051 3,400 3,400 0.45 Naphthalene <0.0086 <0.0099 <0.0084 <0.0089 <0.0079 <0.0087 <0.0088 0.0089 A <0.0069 <0.0086 <0.0072 <0.0087 <0.0090 <0.0086 <0.0070 <0.0079 <0.0073 <0.011 <0.0078 <0.0077 <0.0086 <0.010 4.1 18 0.39 n-Butylbenzene <0.0043 <0.0049 <0.0042 <0.0044 <0.0039 <0.0044 <0.0044 0.0065 A <0.0035 <0.0043 <0.0036 <0.0044 <0.0045 <0.0043 <0.0035 <0.0040 <0.0037 <0.0055 <0.0039 <0.0039 <0.0043 <0.0051 110 110 4.5 n-Propylbenzene <0.0043 <0.0049 <0.0042 <0.0044 <0.0039 <0.0044 <0.0044 0.0039 A <0.0035 <0.0043 <0.0036 <0.0044 <0.0045 <0.0043 <0.0035 <0.0040 <0.0037 <0.0055 <0.0039 <0.0039 <0.0043 <0.0051 260 260 2.6 o-xylene <0.0043 <0.0049 <0.0042 <0.0044 <0.0039 <0.0044 <0.0044 0.0030 A,J <0.0035 <0.0043 <0.0036 <0.0044 <0.0045 <0.0043 <0.0035 <0.0040 <0.0037 <0.0055 <0.0039 <0.0039 <0.0043 <0.0051 140 430 9.8 Xylene, total <0.013 <0.015 <0.013 <0.013 <0.012 <0.013 <0.013 0.0048 A,J <0.010 <0.013 <0.011 <0.013 <0.013 <0.013 <0.010 <0.012 <0.011 <0.017 <0.012 <0.012 <0.013 <0.015 120 260 9.9 sec-Butylbenzene <0.0043 <0.0049 <0.0042 <0.0044 <0.0039 <0.0044 <0.0044 0.0061 A <0.0035 <0.0043 <0.0036 <0.0044 <0.0045 <0.0043 <0.0035 <0.0040 <0.0037 <0.0055 <0.0039 <0.0039 <0.0043 <0.0051 150 150 4.1 Notes:Results presented in milligrams per kilogram (mg/kg), analogous to parts per million (ppm) Feet bgs = Feet below ground surfaceBold denotes concentration exceeds the Residential PSRG J = Estimated concentration, below calibration range and above Method Detection Limit A = Internal standard repsonse outside the QC limits. Analysis repeated without improvement. Reanalysis result reported. The standard for trivalent chromium used for total chromium, as recent sampling determined that the chromium present was trivalent, not hexavalent. 10/15/17 10/14/17 Unrestricted Use Health Base- Based PSRG Industrial Health-Based PSRG Protection of groundwater PSRG Comparison Criteria SUMMARY OF SOIL ANALYTICAL RESULTS - SVOCS AND METALS Tryon Place East Stonewall Street, Charlotte, North Carolina Parameter Sample ID SB1-S SB1-D SB2-S SB2-D SB3-S SB3-D SB4-S SB5-S SB5-D SB6-S SB6-D SB7-S SB7-D Collection Depth (feet bgs)5 11-14 5 9-14 5 13-15 5 5 9-11 5 11-17 5 10-15 Collection Date Total Metals Arsenic 0.58 1.30 1.10 0.71 2.70 1.40 30.00 1.50 1.10 4.60 1.60 5.50 2.80 0.68 3.0 5.80 Barium 27.00 36.00 46.00 370.00 53.00 40.00 110.00 66.00 62.00 200.00 51.00 55.00 56.00 3,100 47,000 580 Cadmium <0.29 <0.28 <0.30 <0.28 <0.29 <0.29 0.33 <0.29 <0.27 0.34 <0.28 0.37 <0.29 14 200 3 Chromium 28.00 10.00 39.00 130.00 20.00 200.00 21.00 31.00 31.00 46.00 14.00 24.00 63.00 23,000 100,000 360,000 Lead 9.00 6.70 8.90 3.10 33.00 4.90 82.00 9.80 4.00 180.00 6.10 61.00 7.30 NS NS 270 Mercury <0.022 <0.021 <0.023 <0.021 0.18 <0.021 0.24 <0.023 <0.020 0.78 <0.023 0.27 <0.024 2.30 3.10 1.00 Selenium 0.57 0.61 1.20 0.75 0.88 0.62 1.20 1.10 0.73 0.64 0.93 1.30 0.94 78 1,200 2.10 Semivolatile Organic Compounds 1-Methylnaphthalene <0.38 <0.37 <0.40 <0.36 <0.38 <0.38 <0.36 <0.38 <0.35 0.13 J <0.37 <0.38 <0.38 18 72 0.11 2-Methylnaphthalene <0.38 <0.37 <0.40 <0.36 <0.38 <0.38 0.096 J <0.38 <0.35 0.16 J <0.37 <0.38 <0.38 48 600 3.1 Anthracene <0.38 <0.37 <0.40 <0.36 <0.38 <0.38 <0.36 <0.38 <0.35 0.11 J <0.37 <0.38 <0.38 3,600 45,000 1,300 Benz(a)anthracene <0.38 <0.37 <0.40 <0.36 <0.38 <0.38 0.25 J 0.13 J <0.35 0.55 <0.37 0.13 J <0.38 1.1 21 0.35 Benzo(a)pyrene <0.38 <0.37 <0.40 <0.36 0.11 J <0.38 0.31 J 0.15 J <0.35 0.67 <0.37 0.14 J <0.38 0.11 2.1 0.12 Benzo(b)fluoranthene <0.38 <0.37 <0.40 <0.36 0.17 J <0.38 0.44 0.24 J <0.35 0.88 <0.37 0.20 J <0.38 1.1 21 1.2 Benzo(k)fluoranthene <0.38 <0.37 <0.40 <0.36 ,0.37 <0.38 0.13 J <0.38 <0.35 0.26 J <0.37 <0.38 <0.38 11 210 12 Benzo(g,h,i)perylene <0.38 <0.37 <0.40 <0.36 0.096 J <0.38 <0.37 0.13 J <0.35 0.46 <0.37 <0.38 <0.38 NS NS NS Chrysene <0.38 <0.37 <0.40 <0.36 0.10 J <0.38 0.28 J 0.19 J <0.35 0.60 <0.37 0.16 J <0.38 110 2,100 36 Dibenzo(a,h)anthracene <0.38 <0.37 <0.40 <0.36 <0.38 <0.38 <0.36 <0.38 <0.35 0.11 J <0.37 <0.38 <0.38 0.11 2.1 0.38 Fluoranthene <0.38 <0.37 <0.40 <0.36 0.16 J <0.38 0.42 0.39 <0.35 0.98 <0.37 0.23 J <0.38 480 6,000 672 Indeo(1,2,3-cd)pyrene <0.38 <0.37 <0.40 <0.36 0.097 J <0.38 0.26J 0.13 J <0.35 <0.37 <0.37 0.099 J <0.38 1.1 21 39 Naphthalene <0.38 <0.37 <0.40 <0.36 <0.38 <0.38 <0.36 <0.38 <0.35 0.14J <0.37 <0.38 <0.38 4.1 18 0.39 Phenanthrene <0.38 <0.37 <0.40 <0.36 <0.38 <0.38 0.25 J 0.15 J <0.35 0.37 <0.37 <0.38 <0.38 NS NS NS Pyrene <0.38 <0.37 <0.40 <0.36 0.17 J <0.38 0.4 0.33 J <0.35 1.0 <0.37 0.22 J <0.38 360 4,500 440 Notes: Results presented in milligrams per kilogram (mg/kg), analogous to parts per million (ppm) Feet bgs = Feet below ground surface Bold denotes concentration exceeds either the residential or commercial PSRG J = Estimated concentration, below calibration range and above Method Detection Limit The standard for trivalent chromium used for total chromium, as recent sampling determined that the chromium present was trivalent, not hexavalent. Residential Use Health Base- Based PSRG Industrial Health- Based PSRG 10/15/17 Protection of Groundwater PSRG Comparison Criteria SOURCE: MECKLENBURG COUNTY GIS (POLARIS) SCALE AS SHOWN EXHIBIT H PRELIMINARY SITE DEVELOPMENT PLAN WITH SAMPLE LOCATIONS FORMER GOODYEAR SERVICE CENTER SOUTH TRYON STREET & EAST STONEWALL STREET CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA ECS PROJECT NO. 49-5350 Soil Sampling Area Soil Sampling Location Soil-Gas Sampling Location Sub-Slab Vapor Sampling Location Yellow border represents slab on grade Blue border represents area to excavated 1 2 3 4 5 6 7 SB4-S SB6-S/D SB7-S/D SB1-S/D SB3-S/D SB5-S/D SB2-S/D SG-1 SG-2 SG-3 SG-4 SG-5 SG-6 SG-8 SG-7 GP-1 GP-2