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HomeMy WebLinkAbout24054_AJACC Auto_Soil Import from Dynatech Review Package_20220218 February 18, 2022 Sent Via E-mail Mason Ellerbe Josh Glover Abacus Company Greystar Development East, LLC 1200 E Morehead St, Suite 280 421 E Morehead Rd, Suite 400 Charlotte, North Carolina 28204 Charlotte, NC 28202 mellerbe@abacuscapitalusa.com jglover@greystar.com Subject: Brownfields Property Soil Transfer Approval Dynatech Properties and AJACC Auto Brownfields Property Charlotte, Mecklenburg County Brownfields Project No. 25001-21-060, 25067-21-060 and 24054-20-060 Mr. Ellerbe and Mr. Glover, The North Carolina Department of Environmental Quality (DEQ) Brownfields Program received and reviewed a request to export approximately 17,000 cubic yards of soil from Dynatech Brownfields Properties to AJACC Auto Brownfields Property. This request was submitted on your behalf by Ms. Haley Martin of Hart & Hickman (H&H) in her email dated February 11. 2022, titled 25001&25067- Dynatech- Soil Export Request. DEQ understands the redevelopment on the Dynatech II Brownfield Property (25001-21-060) and Dynatech III Brownfields Property (25067-21-060) will be done jointly under the DEQ-approved Environmental Management Plan (EMP) dated January October 19, 2021. DEQ Brownfields reviewed the analytical data and site maps provided in the correspondence. The request is to export up to 17,000 cubic yards of soil from the Dynatech Brownfields Properties from the following sections FCC-2B, FCC-3A/B, FCC-4A/B, FCC-5A/B, FCC-8B, and FCC-9. Based on a review of the DEQ Risk Calculator which incorporated data from both properties did not increase risk at the receiving AJACC Auto Brownfield Property. Therefore, DEQ Brownfields approves up to 17,000 cubic yards of soil to be exported to the AJACC Auto Brownfields Property. All soil export must be conducted under a DEQ Brownfields approved Environmental Management Plan (EMP). Soils should be field screened during excavation prior to export from the property. If unanticipated impacts are identified during excavation, please refer to the EMP for further actions and cease transfer until appropriate characterization can be completed In addition, in accordance with the approved EMPs, annual Redevelopment Summary Reports will be submitted to DEQ Brownfields. Details related to the disposition of this soil including but not limited to, total volume, general description of field screening efforts, etc. should be included with each Property’s Redevelopment Summary Report. February 18, 2022 Page 2 Please be advised that this approval does not waive any applicable requirement to obtain any necessary permits, licenses, or certifications which may be required from other state or local entities. If you have questions about this correspondence or require additional information, please feel free to contact me by phone at 704-661-0330 or by email at Carolyn.minnich@ncdenr.gov. Sincerely, Carolyn Minnich Peter Doorn Project Manager Project Manager Brownfields Program Brownfields Program ec: Doorn, Peter L peter.doorn@ncdenr.gov Cody Cannon cody@centuriondg.com Haley Martin hmartin@harthickman.com Ralph McGee RMcGee@harthickman.com Chris Hustek, chris.hustek@greystar.com 1 Doorn, Peter L From:Minnich, Carolyn Sent:Wednesday, February 16, 2022 3:13 PM To:Doorn, Peter L Subject:FW: [External] 25001 & 25067 - Dynatech - Soil Export Request Attachments:Dynatech - Export Request Package.pdf Request to send soils to 24054.  I will review and copy you on my  conclusion.  I just sent a TEAMS message about  cumulative risk cal.        From: Haley Martin [mailto:hmartin@harthickman.com]   Sent: Friday, February 11, 2022 3:59 PM  To: Minnich, Carolyn <carolyn.minnich@ncdenr.gov>  Cc: Ralph McGee <RMcGee@harthickman.com>  Subject: [External] 25001 & 25067 ‐ Dynatech ‐ Soil Export Request     CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to  Report Spam.  Carolyn,     H&H understands that the AJACC Auto Brownfields property (BPN 24054‐20‐060) located off of Verbena Street in  Charlotte is planning import of up to 17,000 cubic yards of fill material as part of the proposed redevelopment.  The PDs  for the Dynatech II and Dynatech III Brownfields properties (BPNs 25001‐21‐060 and 25067‐21‐060) are requesting  approval to transfer excess soil generated during mass grading activities in the areas of in situ soil characterization areas  FCC‐2B (12‐18 feet below ground surface [ft bgs]), FCC‐3A/3B (4‐14 ft bgs), FCC‐4A/4B (4‐14 ft bgs), FCC‐5A/5B (5‐13 ft  bgs), FCC‐8B (6‐8 ft bgs), and FCC‐9 (6‐8 ft bgs) to the AJACC Auto Brownfields property.  The soil characterization areas  to be exported from the Dynatech Brownfields properties are outlined in green on the attached Figure.  In accordance  with the DEQ‐approved Environmental Management Plan (EMP), excess soil in these soil characterization areas can be  transferred to another Brownfields property for use as fill material, with concurrence from DEQ Brownfields. It is of note  that shallow soils from evaluation areas FCC‐2 (0‐5 ft bgs), FCC‐3 (0‐4 ft bgs), and FCC‐4 (0‐4 ft bgs) will not be exported  from the Dynatech Brownfields properties without prior DEQ approval.      We have prepared the attached Soil Export Request Package which includes a tabular summary of the highest  concentrations detected at both the Dynatech II and III Brownfields properties and the AJACC Auto Brownfields  property, a figure depicting the location of the soil characterization areas at the Dynatech properties, and cumulative  worst‐case risk calculations. In summary, no organic compounds were detected in soil samples collected in the in situ  soil characterization areas FCC‐2B, FCC‐3A/3B, FCC‐4A/4B, FCC‐5A/5B, FCC‐8B, and FCC‐9 at concentrations above the  2 DEQ IHSB Protection of Groundwater or Residential PSRGs.  In addition, detected concentrations of metals at the  Dynatech properties appear to be consistent with those detected at the AJACC Auto Brownfields property.     H&H calculated the cumulative risks using the highest concentration of any compound at either Brownfields property to  model hypothetical “worst‐case” exposure scenarios under a residential, non‐residential, construction worker, and  trespasser scenario.  As expected, risk calculations indicate that direct exposure soil pathway for a resident, non‐ residential worker, construction worker, and trespasser do not exceed the threshold criteria for carcinogenic or non‐ carcinogenic risks.      The export package also includes email confirmation from the PD of AJACC Auto, Greystar Development East, LLC,  indicating they are willing to accept the proposed export material from the Dynatech properties.  Based on the detected  compound concentrations below the DEQ IHSB Residential PSRGs and the results of the worst‐case risk calculations, the  PD requests DEQ approval to transport material from in situ soil characterization areas FCC‐2B, FCC‐3A/3B, FCC‐4A/4B,  FCC‐5A/5B, FCC‐8B, and FCC‐9 to the AJACC Auto Brownfields property.     As you may know, grading construction work is ongoing. We appreciate your reviewing this data to assist in keeping the  construction schedule on track. In the meantime, please let us know if you have any questions or concerns.    Thank you,   Haley        Haley Martin, PG, Senior Project Geologist Hart & Hickman, PC 2923 S Tryon Street, Suite 100 ꞏ Charlotte, NC 28203 Direct: 704-526-2045 ꞏ Mobile: 704-506-8107 www.harthickman.com        Table 1 Summary of Highest Detected ConcentrationsDynatech II and IIICharlotte, North CarolinaH&H Job No. ABS-002Sample LocationDynatech II and III3AJACC Auto4Sample IDFCC-2B, FCC-3A/3B, FCC- 4A/4B, FCC-5A/5B, FCC-8B, and FCC-9SB-1 through SB-5Sample DateJune 2021 April 2021Range MeanVOCs (8260)Acetone 0.103 J 0.037 25 12,000 140,000-- --Ethyl tert butyl etherND0.0008 J NE NE NE-- --Methyl Ethyl Ketone ND0.002 J 17 5,500 40,000-- --Methyl tert-Butyl EtherND 0.019 0.09 49 220-- --Naphthalene 0.0237ND0.39 2.1 8.8-- --p-Isopropyltoluene 0.0053 JNDNE NE NE-- --Toluene 0.0360ND8.3 990 9,700-- --1,2,3-Trichlorobenzene 0.0091ND0.33 13 190-- --1,2,4-Trimethylbenzene 0.0082ND12 63 370-- --m&p-Xylene 0.0182ND9.8 120 500-- --o-Xylene 0.0104ND9.8 140 590-- --Xylenes (Total) 0.0286ND9.9 120 530-- --SVOCs (8270)Benzo(a)anthraceneND0.059 J 0.35 1.1 21-- --Benzo(a)pyreneND0.087 J 0.12 0.11 2.1-- --Benzo(b)fluoranthene 0.184 J 0.126 J 1.2 1.1 21-- --Benzo(g,h,i)peryleneND0.057 J NE NE NE-- --Fluoranthene 0.306 J 0.117 J 670 480 6,000-- --Indeno(1,2,3-cd)pyreneND0.045 J 3.9 1.1 21-- --2-MethylnaphthaleneND0.028 J 3.1 48 600-- --NaphthaleneND0.021 J 0.39 2.1 8.8-- --Phenanthrene 0.221 J 0.065 J NE NE NE-- --Pyrene 0.303 J 0.105 J 440 360 4,500-- --Metals (6020/7471/7199)Arsenic 1.1 J 3.4 5.8 0.68 3 1.0 - 18 4.8Barium 323 633 580 3,100 47,000 50 - 1,000 356Cadmium 0.14 0.281 J 3 14 200 1.0 - 10 4.3Chromium (total) 113 59.3 NS NS NS 7.0 - 300 65Chromium (trivalent) 111.7 58.73 360,000 23,000 350,000 NS NSChromium (hexavalent)1.30 0.57 J3.8 0.31 6.5 NS NSLead 49.4 56.3 270 400 800 ND - 50 16Mercury 0.091 0.0587 J 1 2.3 9.7 0.03 - 0.52 0.121Selenium 2.5 5.48 2.1 78 1,200 <0.1 - 0.8 0.42SilverND0.0705 J 3.4 78 1,200 ND - 5.0 NSNotes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated June 20212) Range and mean values of background metals taken from Elements in North American Soils by Dragun and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern Conterminous U.S. Soils (Dragun and Chekiri, 2005). 3) Dynatech II and III data was obtained from the NCDEQ Brownfields approved Environmental Management Plan prepared by Hart & Hickman, PC dated October 19, 2021.4) AJACC Auto data was obtained from the NCDEQ Brownfields approved Environmental Management Plan prepared by Froehling & Robertson, Inc. dated August 10, 2021.Laboratory analytical methods are shown in parentheses.Bold values exceed the Residential PSRG and background concentrations in the case of metals.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NS = not specified; NE = not established; ND = non-detect; -- = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. Regional Background Metals In Soil2Screening CriteriaProtection of Groundwater PSRGs1Residential PSRGs1Industrial/ Commercial PSRGs1https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Abacus Capital (ABS)/Dynatech II/Site Work/BF to BF Transfer Request/ABS-002 Data Tables.xlsxTable 1 (Page 1 of 1)Hart & Hickman, PC REVISION NO. 0 JOB NO. ABS-002 DATE: 9-27-21 FIGURE NO. 2 DYNATECH II, III, & IV TOOMEY AVENUE AND WEST TREMONT AVENUE CHARLOTTE, NORTH CAROLINA SITE AND SAMPLE LOCATION MAP LEGEND BROWNFIELDS PROPERTY BOUNDARY PARCEL BOUNDARY SOIL CHARACTERIZATION AREA SOIL BORING LOCATION SOIL CHARACTERIZATION ALIQUOT BORING LOCATION CO-LOCATED SOIL AND GROUNDWATER SAMPLE LOCATION SOIL GAS SAMPLE LOCATION 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 GeologyTOOMEY AVE N UE W TREMONT AVENU E WOODCREST AVENUE FC-24 FC-22 FC-20 FC-21 FC-23 FC-25 FC-19 FC-18 FC-17 FC-26 FC-27 FC-28 FC-29 FC-32 FC-31 FC-30 FC-15 FC-16 FC-1 FC-5 FC-12 FC-14 FC-13 FC-9 FC-10FC-11 FC-7 FC-8 FC-2 FC-4 FC-3 FC-6 B-9 B-10 B-7 B-8/MW-3 B-6/MW-2 B-5/MW-1 MW-4/4R B-2/B-2GW B-1/B-1GW B-4B-4GW B-3/B-3GW FCC-8 FCC-7 FCC-6 FCC-9 FCC-5 FCC-2 FCC-4 FCC-3 FCC-1 NOTES: 1.PARCEL DATA AND AERIAL IMAGERY OBTAINED FROM MECKLENBURG COUNTY GIS, 2021. 2.SOIL SAMPLES B-1* THROUGH B-3*, GROUNDWATER SAMPLES B-1GW* THROUGH B3-GW*, AND SOIL GAS SAMPLES SG-1 THROUGH SG-3 WERE COLLECTED ON THE WESTERN SITE PARCEL BY PARTNER IN DECEMBER 2020. 3.SOIL SAMPLES B-1 THROUGH B-4, GROUNDWATER SAMPLES B-1GW THROUGH B-4GW, AND MSVG-1 THROUGH MSVG-7 WERE COLLECTED ON THE EASTERN SITE PARCELS BY PARTNER IN JANUARY 2021. 4.BORINGS B-5 THROUGH B-10 AND FC-1 THROUGH FC-32 ADVANCED BY PARTNER IN JUNE 2021. 5.MONITORING WELLS MW-1 THROUGH MW-3 WERE INSTALLED BY PARTNER IN JUNE 2021. WELLS MW-4 AND MW-4R WERE INSTALLED BY OTHERS IN SEPTEMBER 2000. 6.SOIL GAS SAMPLES MSG-4 THROUGH MSG-22 WERE COLLECTED BY PARTNER IN MAY AND JUNE 2021. 7.BPN = BROWNFIELDS PROJECT NUMBER B-2*/B-2GW* B-1*/B-1GW* B-3*/B-3GW* SG-2 SG-1SG-3 MSVG-5 MSVG-7 MSVG-6 MSVG-1 MSVG-2 MSVG-3 MSVG-4 MSG-15 MSG-19 MSG-16 MSG-17 704 W. TREMONT AVENUE2325 TOOMEY AVENUE 728 W. TREMONT AVENUE 2213 TOOMEY AVENUE 2330 TOOMEY AVENUE POWERS SITE BROWNFIELDS PROPERTY (BPN 20045-16-060) MSG-1 MSG-2 MSG-3 MSG-22 MSG-21 MSG-20 MSG-18 MSG-14 MSG-12 MSG-13 MSG-10 MSG-11 MSG-9 MSG-8 MSG-7 MSG-4 MSG-5 MSG-6 M:\AAA_DRAFTING\ABS-002\Site Map.dwg, FIGURE 2, 9/27/2021 1:03:21 PM, sperry Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Prepared By:HHM RWM Site Wide - Cumulative Hypothetical Worst-Case North Carolina Department of Environmental Quality Risk Calculator Dynatech II and III and AJACC Auto Charlotte, Mecklenburg County DWM Brownfields Program 25001-21-060, 25067-21-060, and 24054-20-060 June 2021 May 2021 EPA RSL Table North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: 25001-21-060, 25067-21-060, and 24054-20-060 Exposure Unit ID: Site Wide - Cumulative Hypothetical Worst-Case Note: Risk output will only be calculated for complete exposure pathways. Receptor Pathway Check box if pathway complete Soil Groundwater Use Soil Groundwater Use Construction Worker Soil Soil Surface Water Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Source Soil Source Groundwater Source Soil Source Groundwater Input Form 1A VAPOR INTRUSION PATHWAYS DIRECT CONTACT SOIL AND WATER PATHWAYS Resident Non-Residential Worker Recreator/Trespasser Resident Non-Residential Worker CONTAMINANT MIGRATION PATHWAYS Groundwater Surface Water North Carolina DEQ Risk Calculator Exposure Point ConcentrationsVersion Date: June 2021Basis: May 2021 EPA RSL TableSite ID: 25001-21-060, 25067-21-060, and 24054-20-060Exposure Unit ID: Site Wide - Cumulative Hypothetical Worst-Case NOTE: If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculationsExposure Point Concentration (mg/kg)Notes: CAS NumberChemicalFor the chemicals highlighted in blue, data entry notes are provided in the PSRG Table link on the Main MenuMinimum Concentration (Qualifier)Maximum Concentration (Qualifier)UnitsLocation of Maximum ConcentrationDetection FrequencyRange of Detection LimitsConcentration Used for ScreeningBackground ValueScreening Toxicity Value (Screening Level) (n/c)Potential ARAR/TBC ValuePotential ARAR/TBC SourceCOPC Flag (Y/N)Rationale for Selection or Deletion0.103 67-64-1Acetonemg/kg3.4 7440-38-2Arsenic, Inorganicmg/kg633 7440-39-3Bariummg/kg0.281 7440-43-9Cadmium (Diet)mg/kg111.7 16065-83-1Chromium(III), Insoluble Saltsmg/kg1.3 18540-29-9Chromium(VI)mg/kg56.3 7439-92-1~Lead and Compoundsmg/kg0.091 7487-94-7~Mercuric Chloride (and other Mercury salts)mg/kg0.002 78-93-3Methyl Ethyl Ketone (2-Butanone)mg/kg0.019 1634-04-4Methyl tert-Butyl Ether (MTBE)mg/kg0.059 56-55-3~Benz[a]anthracenemg/kg0.087 50-32-8~Benzo[a]pyrenemg/kg0.184 205-99-2~Benzo[b]fluoranthenemg/kg0.306 206-44-0~Fluoranthenemg/kg0.045 193-39-5~Indeno[1,2,3-cd]pyrenemg/kg0.028 91-57-6~Methylnaphthalene, 2-mg/kg0.0237 91-20-3~Naphthalenemg/kg0.303 129-00-0~Pyrenemg/kg5.48 7782-49-2Seleniummg/kg0.0705 7440-22-4Silvermg/kg0.036 108-88-3Toluenemg/kg0.0091 87-61-6Trichlorobenzene, 1,2,3-mg/kg0.0082 95-63-6Trimethylbenzene, 1,2,4-mg/kg0.0286 1330-20-7 Xylenesmg/kgInput Form 2ASoil Exposure Point Concentration TableDescription of Exposure Point Concentration Selection:North Carolina DEQ Risk Calculator Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: 25001-21-060, 25067-21-060, and 24054-20-060 Exposure Unit ID: Site Wide - Cumulative Hypothetical Worst-Case Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil 1.0E-05 1.7E-01 NO Groundwater Use* NC NC NC Soil 1.4E-06 1.2E-02 NO Groundwater Use* NC NC NC Construction Worker Soil 5.6E-07 1.4E-01 NO Soil 5.7E-06 9.6E-02 NO Surface Water* NC NC NC Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air NC NC NC Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air NC NC NC Indoor Air NC NC NC Pathway Source Source Soil NC Source Groundwater NC Source Soil NC Source Groundwater NC 3. NM = Not Modeled 4. NC = Pathway not calculated DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser 2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based closure. Surface Water Exceedence of 2B at Receptor? Exceedence of 2B at Receptor? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker CONTAMINANT MIGRATION CALCULATORS Target Receptor Concentrations Exceeded? Groundwater Exceedence of 2L at Receptor? Exceedence of 2L at Receptor? 1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Notes: North Carolina DEQ Risk Calculator DEQ Risk Calculator - Direct Contact - Resident Soil Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: 25001-21-060, 25067-21-060, and 24054-20-060 Exposure Unit ID: Site Wide - Cumulative Hypothetical Worst-Case * - Note that inhalation on this calculator refers to outdoor inhalation of volatiles and particulates, not indoor inhalation associated with vapor intrusion. CAS # Chemical Name: Ingestion Concentration (mg/kg) Dermal Concentration (mg/kg) Inhalation Concentration (mg/kg)* Ingestion Carcinogenic Risk Dermal Carcinogenic Risk Inhalation Carcinogenic Risk* Calculated Carcinogenic Risk Ingestion Hazard Quotient Dermal Hazard Quotient Inhalation Hazard Quotient* Calculated Non- Carcinogenic Hazard Quotient 67-64-1 Acetone 0.103 0.103 0.103 1.5E-06 2.2E-07 1.7E-06 7440-38-2 Arsenic, Inorganic 3.4 3.4 3.4 4.4E-06 6.2E-07 8.8E-11 5.0E-06 8.7E-02 1.0E-02 3.7E-06 9.7E-02 7440-39-3 Barium 633 633 633 4.0E-02 2.0E-05 4.0E-02 7440-43-9 Cadmium (Diet) 0.281 0.281 0.281 3.0E-12 3.0E-12 3.6E-03 3.4E-04 4.5E-07 3.9E-03 16065-83-1 Chromium(III), Insoluble Salts 111.7 111.7 111.7 9.5E-04 9.5E-04 18540-29-9 Chromium(VI) 1.3 1.3 1.3 4.2E-06 1.8E-09 4.2E-06 5.5E-03 2.1E-07 5.5E-03 7439-92-1 ~Lead and Compounds 56.3 56.3 56.3 <SL** <SL** <SL** 7487-94-7 ~Mercuric Chloride (and other Mercury salts) 0.091 0.091 0.091 3.9E-03 4.9E-09 3.9E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone) 0.002 0.002 0.002 4.3E-08 3.0E-08 7.2E-08 1634-04-4 Methyl tert-Butyl Ether (MTBE) 0.019 0.019 0.019 4.9E-11 3.4E-10 3.9E-10 1.2E-06 1.2E-06 56-55-3 ~Benz[a]anthracene 0.059 0.059 0.059 3.9E-08 1.3E-08 7.4E-10 5.2E-08 50-32-8 ~Benzo[a]pyrene 0.087 0.087 0.087 5.7E-07 1.9E-07 8.7E-13 7.6E-07 3.7E-03 1.1E-03 7.0E-07 4.9E-03 205-99-2 ~Benzo[b]fluoranthene 0.184 0.184 0.184 1.2E-07 4.0E-08 1.8E-13 1.6E-07 206-44-0 ~Fluoranthene 0.306 0.306 0.306 9.8E-05 3.0E-05 1.3E-04 193-39-5 ~Indeno[1,2,3-cd]pyrene 0.045 0.045 0.045 2.9E-08 9.8E-09 4.5E-14 3.9E-08 91-57-6 ~Methylnaphthalene, 2- 0.028 0.028 0.028 8.9E-05 2.8E-05 1.2E-04 91-20-3 ~Naphthalene 0.0237 0.0237 0.0237 4.1E-09 1.5E-09 5.8E-09 1.1E-08 1.5E-05 4.7E-06 1.5E-04 1.7E-04 129-00-0 ~Pyrene 0.303 0.303 0.303 1.3E-04 4.0E-05 1.7E-04 7782-49-2 Selenium 5.48 5.48 5.48 1.4E-02 4.4E-09 1.4E-02 7440-22-4 Silver 0.0705 0.0705 0.0705 1.8E-04 1.8E-04 108-88-3 Toluene 0.036 0.036 0.036 5.8E-06 1.5E-06 7.3E-06 87-61-6 Trichlorobenzene, 1,2,3- 0.0091 0.0091 0.0091 1.5E-04 1.5E-04 95-63-6 Trimethylbenzene, 1,2,4- 0.0082 0.0082 0.0082 1.0E-05 1.6E-05 2.6E-05 1330-20-7 Xylenes 0.0286 0.0286 0.0286 1.8E-06 4.5E-05 4.7E-05 Cumulative: 1.0E-05 1.7E-01 Output Form 2A ** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate cancer risk or hazard quotient. Lead concentrations are compared to the EPA screening level of 400 mg/kg for residential soil. North Carolina DEQ Risk Calculator DEQ Risk Calculator - Direct Contact - Non-Residential Worker Soil Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: 25001-21-060, 25067-21-060, and 24054-20-060 Exposure Unit ID: Site Wide - Cumulative Hypothetical Worst-Case * - Note that inhalation on this calculator refers to outdoor inhalation of volatiles and particulates, not indoor inhalation associated with vapor intrusion. CAS # Chemical Name: Ingestion Concentration (mg/kg) Dermal Concentration (mg/kg) Inhalation Concentration (mg/kg)* Ingestion Carcinogenic Risk Dermal Carcinogenic Risk Inhalation Carcinogenic Risk Calculated Carcinogenic Risk Ingestion Hazard Quotient Dermal Hazard Quotient Inhalation Hazard Quotient Calculated Non- Carcinogenic Hazard Quotient 67-64-1 Acetone 0.103 0.103 0.103 9.8E-08 5.2E-08 1.5E-07 7440-38-2 Arsenic, Inorganic 3.4 3.4 3.4 9.4E-07 2.0E-07 2.0E-11 1.1E-06 5.8E-03 1.2E-03 8.7E-07 7.1E-03 7440-39-3 Barium 633 633 633 2.7E-03 4.9E-06 2.7E-03 7440-43-9 Cadmium (Diet) 0.281 0.281 0.281 7.0E-13 7.0E-13 2.4E-04 4.1E-05 1.1E-07 2.8E-04 16065-83-1 Chromium(III), Insoluble Salts 111.7 111.7 111.7 6.4E-05 6.4E-05 18540-29-9 Chromium(VI) 1.3 1.3 1.3 2.0E-07 1.5E-10 2.0E-07 3.7E-04 5.0E-08 3.7E-04 7439-92-1 ~Lead and Compounds 56.3 56.3 56.3 <SL** <SL** <SL** 7487-94-7 ~Mercuric Chloride (and other Mercury salts) 0.091 0.091 0.091 2.6E-04 1.2E-09 2.6E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone) 0.002 0.002 0.002 2.9E-09 7.0E-09 9.9E-09 1634-04-4 Methyl tert-Butyl Ether (MTBE) 0.019 0.019 0.019 1.0E-11 7.7E-11 8.8E-11 2.8E-07 2.8E-07 56-55-3 ~Benz[a]anthracene 0.059 0.059 0.059 1.8E-09 9.9E-10 6.2E-11 2.9E-09 50-32-8 ~Benzo[a]pyrene 0.087 0.087 0.087 2.7E-08 1.5E-08 7.2E-14 4.1E-08 2.5E-04 1.4E-04 1.7E-07 3.9E-04 205-99-2 ~Benzo[b]fluoranthene 0.184 0.184 0.184 5.6E-09 3.1E-09 1.5E-14 8.7E-09 206-44-0 ~Fluoranthene 0.306 0.306 0.306 6.5E-06 3.6E-06 1.0E-05 193-39-5 ~Indeno[1,2,3-cd]pyrene 0.045 0.045 0.045 1.4E-09 7.6E-10 3.7E-15 2.1E-09 91-57-6 ~Methylnaphthalene, 2- 0.028 0.028 0.028 6.0E-06 3.3E-06 9.3E-06 91-20-3 ~Naphthalene 0.0237 0.0237 0.0237 8.7E-10 4.8E-10 1.3E-09 2.7E-09 1.0E-06 5.6E-07 3.7E-05 3.8E-05 129-00-0 ~Pyrene 0.303 0.303 0.303 8.6E-06 4.8E-06 1.3E-05 7782-49-2 Selenium 5.48 5.48 5.48 9.4E-04 1.1E-09 9.4E-047440-22-4 Silver 0.0705 0.0705 0.0705 1.2E-05 1.2E-05 108-88-3 Toluene 0.036 0.036 0.036 3.9E-07 3.6E-07 7.5E-07 87-61-6 Trichlorobenzene, 1,2,3- 0.0091 0.0091 0.0091 9.7E-06 9.7E-06 95-63-6 Trimethylbenzene, 1,2,4- 0.0082 0.0082 0.0082 7.0E-07 3.7E-06 4.4E-06 1330-20-7 Xylenes 0.0286 0.0286 0.0286 1.2E-07 1.1E-05 1.1E-05 Cumulative: 1.4E-06 1.2E-02 Output Form 2C ** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate cancer risk or hazard quotient. Lead concentrations are compared to the EPA screening level of 800 mg/kg for commercial/industrial soil. North Carolina DEQ Risk Calculator DEQ Risk Calculator - Direct Contact - Construction Worker Soil Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: 25001-21-060, 25067-21-060, and 24054-20-060 Exposure Unit ID: Site Wide - Cumulative Hypothetical Worst-Case * - Note that inhalation on this calculator refers to outdoor inhalation of volatiles and particulates, not indoor inhalation associated with vapor intrusion. CAS # Chemical Name: Ingestion Concentration (mg/kg) Dermal Concentration (mg/kg) Inhalation Concentration (mg/kg)* Ingestion Carcinogenic Risk Dermal Carcinogenic Risk Inhalation Carcinogenic Risk Calculated Carcinogenic Risk Ingestion Hazard Quotient Dermal Hazard Quotient Inhalation Hazard Quotient Calculated Non-Carcinogenic Hazard Quotient 67-64-1 Acetone 0.103 0.103 0.103 1.5E-07 2.6E-07 4.1E-07 7440-38-2 Arsenic, Inorganic 3.4 3.4 3.4 1.2E-07 2.0E-08 4.5E-08 1.9E-07 2.0E-02 3.2E-03 5.1E-02 7.4E-02 7440-39-3 Barium 633 633 633 9.3E-03 2.8E-02 3.8E-02 7440-43-9 Cadmium (Diet) 0.281 0.281 0.281 1.6E-09 1.6E-09 1.7E-03 2.1E-04 6.3E-03 8.2E-03 16065-83-1 Chromium(III), Insoluble Salts 111.7 111.7 111.7 2.2E-04 5.0E-03 5.2E-03 18540-29-9 Chromium(VI) 1.3 1.3 1.3 2.6E-08 3.4E-07 3.6E-07 7.7E-04 9.7E-04 1.7E-03 7439-92-1 ~Lead and Compounds 56.3 56.3 56.3 <SL** <SL** <SL** 7487-94-7 ~Mercuric Chloride (and other Mercury salts) 0.091 0.091 0.091 1.3E-04 6.8E-05 2.0E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone) 0.002 0.002 0.002 2.9E-09 1.7E-07 1.8E-07 1634-04-4 Methyl tert-Butyl Ether (MTBE) 0.019 0.019 0.019 1.4E-12 1.5E-11 1.6E-11 1.9E-07 1.6E-06 1.8E-06 56-55-3 ~Benz[a]anthracene 0.059 0.059 0.059 2.4E-10 9.9E-11 2.3E-11 3.6E-10 50-32-8 ~Benzo[a]pyrene 0.087 0.087 0.087 3.5E-09 1.5E-09 1.6E-10 5.1E-09 8.5E-04 3.6E-04 9.8E-03 1.1E-02 205-99-2 ~Benzo[b]fluoranthene 0.184 0.184 0.184 7.4E-10 3.1E-10 3.4E-11 1.1E-09 206-44-0 ~Fluoranthene 0.306 0.306 0.306 9.0E-06 3.8E-06 1.3E-05 193-39-5 ~Indeno[1,2,3-cd]pyrene 0.045 0.045 0.045 1.8E-10 7.6E-11 8.3E-12 2.7E-10 91-57-6 ~Methylnaphthalene, 2- 0.028 0.028 0.028 2.1E-05 8.6E-06 2.9E-05 91-20-3 ~Naphthalene 0.0237 0.0237 0.0237 1.1E-10 4.8E-11 2.5E-10 4.2E-10 1.2E-07 4.9E-08 1.8E-04 1.8E-04 129-00-0 ~Pyrene 0.303 0.303 0.303 3.0E-06 1.2E-06 4.2E-06 7782-49-2 Selenium 5.48 5.48 5.48 3.2E-03 6.2E-05 3.3E-03 7440-22-4 Silver 0.0705 0.0705 0.0705 4.2E-05 4.2E-05 108-88-3 Toluene 0.036 0.036 0.036 1.3E-07 1.8E-06 1.9E-06 87-61-6 Trichlorobenzene, 1,2,3- 0.0091 0.0091 0.0091 3.4E-06 3.4E-06 95-63-6 Trimethylbenzene, 1,2,4- 0.0082 0.0082 0.0082 6.0E-07 5.5E-06 6.1E-06 1330-20-7 Xylenes 0.0286 0.0286 0.0286 2.1E-07 1.3E-05 1.3E-05 Cumulative: 5.6E-07 1.4E-01 Output Form 2E ** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate cancer risk or hazard quotient. Lead concentrations are compared to the EPA screening level of 800 mg/kg for commercial/industrial soil. North Carolina DEQ Risk Calculator DEQ Risk Calculator - Direct Contact - Recreator/Trespasser Soil Output Form 2F Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: 25001-21-060, 25067-21-060, and 24054-20-060 Exposure Unit ID: Site Wide - Cumulative Hypothetical Worst-Case * - Note that inhalation on this calculator refers to outdoor inhalation of volatiles and particulates, not indoor inhalation associated with vapor intrusion. Receptor Type: CAS # Chemical Name: Ingestion Concentration (mg/kg) Dermal Concentration (mg/kg) Inhalation Concentration (mg/kg)* Ingestion Carcinogenic Risk Dermal Carcinogenic Risk Inhalation Carcinogenic Risk Calculated Carcinogenic Risk Ingestion Hazard Quotient Dermal Hazard Quotient Inhalation Hazard Quotient Calculated Non-Carcinogenic Hazard Quotient 67-64-1 Acetone 0.103 0.103 0.103 8.2E-07 1.0E-08 8.3E-07 7440-38-2 Arsenic, Inorganic 3.4 3.4 3.4 2.5E-06 3.4E-07 4.1E-12 2.8E-06 4.8E-02 5.7E-03 1.7E-07 5.4E-02 7440-39-3 Barium 633 633 633 2.3E-02 9.5E-07 2.3E-02 7440-43-9 Cadmium (Diet) 0.281 0.281 0.281 1.4E-13 1.4E-13 2.0E-03 1.9E-04 2.1E-08 2.2E-03 16065-83-1 Chromium(III), Insoluble Salts 111.7 111.7 111.7 5.3E-04 5.3E-04 18540-29-9 Chromium(VI) 1.3 1.3 1.3 2.4E-06 8.4E-11 2.4E-06 3.1E-03 9.8E-09 3.1E-03 7439-92-1 ~Lead and Compounds 56.3 56.3 56.3 <SL** <SL** <SL** 7487-94-7 ~Mercuric Chloride (and other Mercury salts) 0.091 0.091 0.091 2.2E-03 2.3E-10 2.2E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone) 0.002 0.002 0.002 2.4E-08 1.4E-09 2.5E-08 1634-04-4 Methyl tert-Butyl Ether (MTBE) 0.019 0.019 0.019 2.7E-11 1.6E-11 4.3E-11 5.4E-08 5.4E-08 56-55-3 ~Benz[a]anthracene 0.059 0.059 0.059 2.1E-08 7.2E-09 3.5E-11 2.9E-08 50-32-8 ~Benzo[a]pyrene 0.087 0.087 0.087 3.2E-07 1.1E-07 4.0E-14 4.2E-07 2.1E-03 6.4E-04 3.3E-08 2.7E-03 205-99-2 ~Benzo[b]fluoranthene 0.184 0.184 0.184 6.7E-08 2.2E-08 8.5E-15 8.9E-08 206-44-0 ~Fluoranthene 0.306 0.306 0.306 5.4E-05 1.7E-05 7.1E-05 193-39-5 ~Indeno[1,2,3-cd]pyrene 0.045 0.045 0.045 1.6E-08 5.5E-09 2.1E-15 2.2E-08 91-57-6 ~Methylnaphthalene, 2- 0.028 0.028 0.028 5.0E-05 1.5E-05 6.5E-05 91-20-3 ~Naphthalene 0.0237 0.0237 0.0237 2.3E-09 8.3E-10 2.7E-10 3.4E-09 8.4E-06 2.6E-06 7.1E-06 1.8E-05 129-00-0 ~Pyrene 0.303 0.303 0.303 7.2E-05 2.2E-05 9.4E-05 7782-49-2 Selenium 5.48 5.48 5.48 7.8E-03 2.1E-10 7.8E-03 7440-22-4 Silver 0.0705 0.0705 0.0705 1.0E-04 1.0E-04 108-88-3 Toluene 0.036 0.036 0.036 3.2E-06 7.0E-08 3.3E-06 87-61-6 Trichlorobenzene, 1,2,3- 0.0091 0.0091 0.0091 8.1E-05 8.1E-05 95-63-6 Trimethylbenzene, 1,2,4- 0.0082 0.0082 0.0082 5.8E-06 7.2E-07 6.6E-06 1330-20-7 Xylenes 0.0286 0.0286 0.0286 1.0E-06 2.1E-06 3.1E-06 Cumulative: 5.7E-06 9.6E-02 ** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate cancer risk or hazard quotient. Lead concentrations are compared to the EPA screening level of 400 mg/kg for residential soil. North Carolina DEQ Risk Calculator From:Chris Hustek To:Cody Cannon Cc:Michael Innominato Subject:RE: Brownfields Soil Transfer - DynaTech to AJACC Auto (ELAN LoSo) Date:Monday, December 27, 2021 9:41:12 PM Attachments:image002.png Cody, Yes, please go ahead and see if you can get the dirt/source below approved for the LOSO project. Let Mike and I know what you need if anything. Mike I is the main contact but please keep me CC’d. Any questions or Concerns please let me know. Thank you! Chris Hustek | Senior Project Manager, Construction Greystar 521 E Morehead | St #400 | Charlotte, NC 28202 M (704) 574-7510 | chris.hustek@greystar.com Overture Cary | Site Address 1055 Hatches Pond Lane Cary, NC 27560 Elan Indian Trail | Site Address 13700 Independence BLVD or 100 Chestnut Parkway Indian Trail, NC 28079 From: Cody Cannon <cody@centuriondg.com> Sent: Monday, December 27, 2021 1:03 PM To: Chris Hustek <chris.hustek@greystar.com> Subject: [EXTERNAL] FW: Brownfields Soil Transfer - DynaTech to AJACC Auto (ELAN LoSo) From: Cody Cannon Sent: Tuesday, December 21, 2021 10:39 AM To: chris.hustek@greystar.com Cc: Kirill Vladimirovich <kirill@centuriondg.com> Subject: Brownfields Soil Transfer - DynaTech to AJACC Auto (ELAN LoSo) Good Morning Chris, Thanks for taking time to discuss the opportunity for a Brownfields-to-Brownfields soil transfer opportunity for your development at the AJACC Auto (24054-20-060) Brownfields property. The prospective developer (PD) for the DynaTech II, III, and IV (25001-21-060, 25067-21-060, and 25068- 21-060) Brownfields properties located near the corner of Toomey Avenue and W. Tremont Avenue in Charlotte, is seeking to get rid of approximately 22,000 cubic yards (CY) of soils from upcoming excavation areas. Per the NCDEQ-approved Environmental Management Plan (Link) for the DynaTech properties, several areas (FCC-2B, FCC-3, FCC-4, FCC-5, FCC-8B, and FCC-9) have been identified as favorable for transfer to another Brownfields property provided written approval by NCDEQ Brownfields of a soil transfer request. We are estimating between 10,000 – 15,000 CY of soils will be generated from these areas, but we will have more precise numbers soon as we progress through the approval process. Please reply to this email to confirm your interest in receiving these materials provided they meet your requirements and a transfer request is approved by the NCDEQ Brownfields Program. Best,