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HomeMy WebLinkAbout22004_Witherspoon Nursery_AWP_20181116Via Email November 16, 2018 North Carolina Department of Environmental Quality Division of Waste Management — Brownfields Program 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Attn: Mr. James Rudder Re: Brownfields Assessment Work Plan Former Witherspoon Nursery 3312 and 3330 Watkins Road Durham, Durham County, North Carolina Brownfields Project No. 22004-18-032 H&H Job Nos. CRP-001 and LVL.001 Dear James: 1.0 Introduction hart hickman SMARTER ENVIRONMENTAL SOLUTIONS Following up on your October 1, 2018 request, on behalf of the Prospective Developer or PD (LRC VII LLC), Hart & Hickman, PC (H&H) has prepared this Work Plan to conduct Brownfields assessment activities for the Brownfields property located on Watkins Road in Durham, Durham County, North Carolina (subject Site or Site). The subject Site totals approximately 8.0 acres on two parcels of land located in a mixed light industrial and commercial area of Durham. The PD sold 3.7 acres of the Brownfields Site (i.e., the western parcel) to Crowne at 501, Limited Partnership (hereinafter referred to as the Witherspoon Nursery West property), and the PD retained the eastern 4.3 acres of the Brownfields Site (hereinafter referred to as the Witherspoon Nursery East Property). A Site location map is provided as Figure 1, and a Site map is included as Figure 2. The Witherspoon Nursery East property (3330 Watkins Road; Durham County Parcel Identification No. [PIN] 080021836190) is improved with multiple structures previously used for 2923 South Tryon Street, Suite 100 3921 Sunset Ridge Rd, Suite 301 Charlotte, NC 28203 Raleigh, INC 27607 www.harthickman.com 704.586.0007 main 919.847.4241 main Mr. James Rudder November 16, 2018 Page 2 administration and storage related to historical plant nursery operations. A residential -type structure was constructed in the mid-1950s in the northeastern portion of the Site and used for administrative purposes. Other Site structures were constructed in various stages from the 1970s through 1980s and are predominately situated in the central and southeastern portions of the Witherspoon Nursery East property. In addition, an approximately 8,000 square foot (sq ft) irrigation pond is near the eastern property boundary. The Witherspoon Nursery West property (3312 Watkins Road; Durham County PIN 080021633681) is improved with an approximately 1,450 sq ft residential -type building located in the northwest portion of the Site. The building was reportedly constructed in the early 1960s and then used for administrative purposes. Remaining portions of the Witherspoon Nursery West property include former greenhouse structures, gardens, gravel parking, and vegetated areas. H&H reviewed available resources to obtain information regarding the historical uses of the Site and identify areas of potential environmental concern for Brownfields assessment. A brief summary of our review is provided in the following section. 2.0 Background From the mid- 1970s until the mid-201Os, Witherspoon Rose Culture Inc. conducted plant nursery operations at the Site. These operations included selling gardening supplies, cultivation of plants, and storage of agricultural products that contained pesticides and herbicides. From November 2015 through March 2018, several investigations were conducted by ATC Associates of North Carolina, P.C. (ATC) and Terracon Consultants, Inc. (Terracon) to assess areas of potential environmental concerns related to these operations. A Site map referencing features identified during the investigations is included as Figure 2. A brief discussion of previous assessment activities completed at the Site is provided in the following sections. S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 3 2.1 ATC 2015 Assessment Activities In November 2015, ATC completed soil, groundwater, and sump assessment at the subject Site. The assessment activities were documented in a December 11, 2015 Limited Phase II Environmental Site Assessment report. The sampling was conducted to investigate areas of potential environmental concern identified during a previous ATC Phase I Environmental Site Assessment (ESA). As part of the field activities, eight (8) borings were advanced via hollow stem auger in various locations throughout the subject Site. The borings were advanced to depths ranging from 7.5 to 25 ft below ground surface (bgs) and soils were collected from a hand auger or standard penetration test (SPT) sampler and later screened with a photoionization detector (PID). In addition to the soil assessment, water samples were collected from two water supply wells located in the northeastern and northwestern portions of the Site, two sumps located in the central and south-central portions of the Site, and two temporary monitoring wells in the south-central and southeastern portions of the Site. The temporary monitoring wells were installed to a depth of 25 ft bgs and groundwater was only encountered in one of the temporary wells (south-central portion of the Site) at an approximate depth of 4.5 ft bgs. According to the report, the water supply well, sump, and temporary monitoring well samples were analyzed for organochlorine pesticides and chlorinated herbicides. The laboratory analytical report indicates that the samples were also analyzed for polychlorinated biphenyls (PCBs). The analytical results did not indicate detections of pesticides, herbicides, or PCBs in the water samples above laboratory reporting limits. 2.2 Terracon 2017 Assessment Activities In September 2017, Terracon completed soil assessment at the Witherspoon Nursery West property. The assessment activities were documented in an October 11, 2017 Limited Site S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart ► hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 4 Investigation report and conducted to investigate areas of potential environmental concern identified during a previous Terracon Phase I ESA. As part of the field activities, composite soil sampling was targeted to seven areas based on historical plant nursery operations. In addition to the composite soil sampling, grab soil sampling was also conducted to investigate impacts related to a heating oil aboveground storage tank (AST) in the northwestern portion of the Site and a former septic drain field in the southwestern portion of the Site. The composite samples were collected from the ground surface to depths of approximately 6 ft bgs and submitted for laboratory analysis of organochlorine and organophosphorus pesticides, chlorinated herbicides, and the metals arsenic, copper, and lead. The grab samples were collected from depths of approximately 1 to 4 ft bgs and submitted for laboratory analysis of gasoline -range and diesel -range total petroleum hydrocarbons (TPH-GRO and TPH-DRO). The laboratory analytical results indicated arsenic was detected at concentrations ranging from 0.79 to 26 milligrams per kilogram (mg/kg) in each of the composite and grab samples analyzed. These concentrations exceed the North Carolina Department of Environmental Quality (DEQ) Residential, Industrial/Commercial, and/or Protection of Groundwater Preliminary Soil Remediation Goals (PSRGs). Arsenic is a naturally occurring inorganic compound and can be found in North Carolina soils at concentrations similar to the aforementioned levels (see Elements in North American Soils by Dragun and Chekiri, 2005). Composite samples collected from former gardening areas in the north -central and central portions of the Site and former septic drain field in the southwestern portion of the Site indicated low levels of pesticides in soils. Organochlorine pesticides aldrin, gamma-BHC, alpha-BHC, and heptachlor epoxide were detected above their respective Protection of Groundwater PSRGs but below Residential and Industrial/Commercial PSRGs. S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 5 Grab sampling conducted in the vicinity of the heating oil AST in the northwestern portion of the Site indicated impacted soils. DRO was detected at a concentration (270 mg/kg) that exceeds the DEQ Action Level of 100 mg/kg. 2.3 ATC 2018 Assessment Activities Based on the results of Terracon's 2017 soil assessment, ATC oversaw removal and excavation activities of two former diesel ASTs (AST-1 and AST-2) on the Witherspoon Nursery East property and one former heating oil AST (AST-3) on the Witherspoon Nursery West property. Removal of the ASTs was conducted in March 2018 and documented in the March 28, 2018 and May 1, 2018 Soil Excavation Activities — Witherspoon Roses Property reports prepared by ATC. During removal activities, approximately 5.95 and 6 tons of petroleum impacted soil were excavated from soils in the vicinity of AST-1 and AST-3, respectively. Confirmatory soil samples were then collected from each excavation area for analysis of volatile organic compounds (VOCs) and semi -volatile organic compounds (SVOCs). One additional soil sample was also collected from the AST-3 excavation and analyzed for TPH-GRO and TPH-DRO and Toxicity Characteristic Leaching Procedure (TCLP) metals (for disposal purposes). The results of the soil sampling did not indicate exceedances of Soil -to -Groundwater Maximum Soil Contaminant Concentrations (MSCCs). The Site received eligibility into the DEQ Brownfields Program (Brownfields Project No. 22004- 18-032) via a Letter of Eligibility dated April 26, 2018. On October 1, 2018, The Brownfields Project Manager requested additional assessment to evaluate risk -assessment based options for the proposed redevelopment of the Site. On October 10, 2018, H&H participated in a conference call with DEQ Brownfields personnel to discuss proposed redevelopment plans for the Site, potential data gaps, and the scope of Brownfields assessment activities needed to address the data gaps for development of an Environmental Management Plan (EMP). Based on DEQ's requirements defined during the conference call, H&H proposes to conduct soil, groundwater, and irrigation pond assessment activities to evaluate subsurface conditions for potential impacts S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart ► hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 6 in certain areas of the property. Proposed Brownfields assessment activities are outlined in the following sections. During the October 10, 2018 conference call, DEQ noted that two arsenic detections of 23 mg/kg and 26 mg/kg in soil may be elevated. However, DEQ stated that they are below internally used DEQ screening levels for residential properties. 3.0 Brownfields Assessment Activities H&H proposes to conduct soil, groundwater, and irrigation pond assessment activities at the Site to evaluate the potential for impacts associated with historical Site uses and to assist in development of an EMP for use during planned redevelopment of the Site. Specifically, groundwater and irrigation pond assessment activities will be conducted on the Witherspoon Nursery East property and soil and groundwater assessment activities will be conducted on the Witherspoon Nursery West property. The proposed assessment activities will be performed in general accordance with DEQ's Inactive Hazardous Sites Branch (IHSB) Guidelines for Assessment and Cleanup (Guidelines) dated October 2015 and 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. Prior to conducting field activities, H&H will contact North Carolina 811 One -Call, the public utility locator service, to mark subsurface utilities at the Site. H&H will also team with a private utility locator to identify and mark locations of sub -grade utilities at the Site that would not be marked by the public locator. In addition, prior to boring advancement, a hand auger will be advanced to a depth of approximately 5 ft bgs at the proposed boring locations to further clear for potential subsurface utilities. S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 7 3.1 Soil Assessment Activities H&H proposes to conduct soil assessment activities at the Witherspoon Nursery West property to evaluate current subsurface conditions for potential impacts. H&H will team with a qualified drilling contractor to advance two (2) soil borings to depths ranging from approximately 5 to 25 ft bgs (or refusal). Specifically, the borings will be advanced in the former septic drain field in the southwestern portion of the Site (SB-1) and the former septic drain field south of the administrative building (SB-2) in the west -central portion of the Site. Proposed soil sample locations (denoted by SB nomenclature) are depicted on the sample location map, which is presented as Figure 3. The soil borings will be advanced utilizing a track -mounted direct push technology (DPT) drill rig. Continuous soil samples will be collected from the borings using acetate lined macrocore sleeves. Soil samples will be logged for lithological description and field screened for indication of potential impacts by observation for staining, and the presence of organic vapors using a calibrated PID. Based upon field screening results, one soil sample will be collected from each soil boring for laboratory analysis from the depth interval interpreted most likely to be impacted. If there are no obvious indications of potential impact based on field screening results, then a sample will be collected from shallow soil potentially below the depth of the leach field (estimated to be 3 to 5 ft bgs). Following collection, the soil samples will be placed in dedicated laboratory -supplied sample containers, labeled with the sample identification, date, and requested analysis, and placed in a laboratory supplied cooler with ice. Soil samples will be submitted to a North Carolina certified laboratory under standard chain of custody protocols for analysis of VOCs by EPA Method 8260 and SVOCs by EPA Method 8270. In addition, the soil sample collected south of the former administrative building will also be submitted for analysis of Resource Conservation and Recovery Act (RCRA) metals plus hexavalent chromium by EPA Methods 6020/7471/7196. S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart ► hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 8 Laboratory analyses for proposed soil sampling to be conducted on the Witherspoon Nursery West property is referenced in Table 1. Following sampling activities, borings will be properly abandoned and the surfaces will be repaired similar to pre -drilling conditions. Additionally, soil sample locations will be estimated using a hand-held global positioning system (GPS) unit. 3.2 Groundwater Assessment Activities H&H will instruct the drilling contractor to utilize the DPT drill rig (equipped with an air hammer) to advance borings for installation of one (1) temporary groundwater monitoring well on Witherspoon Nursery East property and three (3) temporary groundwater monitoring wells on Witherspoon Nursery West property. The air hammer will be used due to the reported presence of weathered siltstone at shallow depths at this Site. Based on the October 2018 conference call with DEQ, borings for the temporary wells will be terminated at 25 ft bgs if groundwater is not encountered. The approximate locations of the proposed temporary monitoring wells (denoted by TMW nomenclature) are shown on the sample location map, which is presented as Figure 3, and are described below: • downgradient of the sumps in the central and south-central portions of the Witherspoon Nursery East property (TMW-1); • downgradient of the former septic drain field in the southern portion of the Witherspoon Nursery West property and near the former boring B-05 where groundwater was encountered (TMW-2); • near the former septic drain field south of the administrative building in the west -central portion of the Witherspoon Nursery West property (TMW-3); and • near the former heating oil AST south of administrative building in the northwestern portion of the Witherspoon Nursery West property (TMW-4). S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 9 During drilling, soil samples will be collected and logged for lithologic description and field screened for presence of staining and elevated concentrations of volatile organic vapors using a PID. The temporary monitoring wells will be constructed of 2-inch diameter PVC with 15 ft of well screen set to bracket the water table and 2-inch diameter PVC well casing to the ground surface. A sand filter pack will extend from below the base to approximately 2 ft above the top of the well screens. The temporary wells will be completed by placing a hydrated bentonite seal from the top of the sand filter pack to the ground surface. Once the temporary monitoring wells are installed, the wells will be allowed to equilibrate to static conditions overnight, and a decontaminated electronic water level indicator will be used to measure the depth to the water table relative to the ground surface. The wells will then be developed by removing a minimum of 3 to 5 well volumes and observing stable field parameters (i.e. pH f 0.1 SU and conductivity varies no more than 5%). After development, a groundwater sample will be collected utilizing low flow/low stress purging techniques using a peristaltic pump and dedicated polyethylene tubing. The intake point of the pump tubing will be placed approximately in the mid -portion of the screened interval of the well and groundwater will be removed at a rate no greater than 200 milliliters per minute. H&H will utilize a water quality meter to measure pH, temperature, dissolved oxygen, oxidation reduction potential, turbidity, and specific conductivity at 3 to 5-minute intervals during purging. Purging will be considered complete when water quality parameters stabilize (i.e. pH ± 0.1 SU, conductivity varies no more than 5%, and turbidity is less than 10 NTUs). Once groundwater parameters stabilize, groundwater samples will be collected directly into laboratory supplied sample containers using the "soda straw" method to eliminate the potential for volatile loss through the peristaltic pump head. The sample containers will be labeled with the sample identification, date, and requested analysis, and placed in a laboratory supplied cooler and iced. The samples will be delivered to a North Carolina certified laboratory under standard chain of custody protocols for analysis of VOCs by EPA Method 8260 and SVOCs by EPA Method 8270. Laboratory analyses for proposed groundwater sampling conducted on the S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart ► hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 10 Witherspoon Nursery West and Witherspoon Nursery East properties are referenced in Tables 1 and 2, respectively. Upon completion of groundwater sampling activities, temporary monitoring wells will be properly abandoned by a licensed well driller and surfaces will be repaired to generally match pre -drilling conditions. Soil and groundwater sample locations will be recorded in the field using a hand-held GPS unit. 3.3 Irrigation Pond Assessment Activities H&H proposes to collect two (2) co -located surface water and sediment samples for laboratory analysis from the irrigation pond located on Witherspoon Nursery East property. Co -located surface water and sediment sample locations (denoted by SW/SED nomenclature) are shown on Figure 3. H&H will utilize water quality meters to collect measurements of pH, temperature, dissolved oxygen, oxidation reduction potential, turbidity, and specific conductivity of surface water at each sample location. Sediment samples will be collected from the base of the irrigation pond at each sample location using a decontaminated stainless steel AMS dredge sampler or other suitable method. Surface water and sediment samples will be collected directly into laboratory -supplied sample containers. The sample containers will be labeled with the sample identification, date, and requested analysis, and placed in a laboratory supplied cooler and iced. The surface water and sediment samples will be delivered to a North Carolina certified laboratory under standard chain of custody protocols for analysis of VOCs by EPA Method 8260, SVOCs by EPA Method 8270, RCRA metals plus hexavalent chromium by EPA Methods 6020/7471/7196, organochlorine pesticides by EPA Method 8081, organophosphorus pesticides by EPA Method 8141, and herbicides by EPA Method 8151. In addition to total RCRA metals, surface water samples will also be analyzed for dissolved RCRA metals plus hexavalent chromium by EPA Methods 6020/7471/7196, as well as nitrate by EPA Method 353.2. Laboratory analyses for proposed S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 11 surface water and sediment sampling conducted on the Witherspoon Nursery East property are referenced in Table 2. Upon completion of sampling, the co -located surface water and sediment sample locations will be estimated using a hand-held GPS unit. 3.4 Quality Assurance/Quality Control Samples Laboratory quality assurance/quality control (QA/QC) procedures will be employed to ensure appropriate sample handling and analysis and to aid in the review and validation of the analytical data. QA/QC procedures will be conducted in accordance with EPA method protocols and will include regular equipment maintenance, equipment calibrations, and adherence to specific sample custody and data management procedures. In accordance with approved methodologies, samples will be analyzed in conjunction with appropriate blanks, laboratory duplicates, continuing calibration standards, and surrogate standards to monitor both instrument and analyst performance. H&H will request that the laboratory reporting limits for each analyte will be at or below appropriate screening criteria. Additionally, H&H will request that the laboratory include J Flags, which are estimated concentrations for compounds that are detected at levels above the laboratory method detection limits, but below the laboratory reporting limits. The following activities will be conducted by H&H for QA/QC purposes: • non -dedicated equipment and tools will be decontaminated prior to use at each boring or sampling location, or following exposure to soil or groundwater; • one duplicate soil sample will be analyzed for VOCs by EPA Method 8260, SVOCs by EPA Method 8270, RCRA metals plus hexavalent chromium by EPA Methods 6020/7471 /7196; • one duplicate groundwater sample will be analyzed for VOCs by EPA Method 8260 and SVOCs by EPA Method 8270; and S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 12 • one trip blank will accompany samples during field and shipping activities. The trip blank will be analyzed for VOCs by EPA Method 8260. Laboratory analyses for proposed QA/QC sampling is referenced in Table 1. A copy of the laboratory analytical data report and QA package for each group of samples submitted to and analyzed by the subcontracted laboratory will be provided in an appendix to the final report. Laboratory QA data consistent with Level II documentation will be requested for this project. A copy of the completed chain -of -custody record will be appended to the corresponding laboratory analytical report included with the final report. 3.5 Investigation Derived Waste Investigation derived waste (IDW) generated during the assessment activities will be thin spread on -Site. However, if significant impacts are suspected, the soil cuttings will be containerized in 55-gallon drums and staged on -Site pending analytical results of a composite IDW sample. Based on laboratory analytical results of IDW samples, the drums will be transported off -Site to a suitable facility for disposal. 3.6 Reporting Following completion of the assessment activities and receipt of the analytical data, H&H will document our findings in a Brownfields assessment report. The report will include a description of the sampling activities, a figure depicting sample locations, soil boring and well construction logs, laboratory analytical data, a discussion of the data in comparison to regulatory screening levels, IDW manifests (if applicable), and conclusions and recommendations concerning our activities. S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032) 20181116.doc hart hickman SMARTER ENVIRONMENTAL SOLUTIONS Mr. James Rudder November 16, 2018 Page 13 We look forward to your approval of this work plan. Should you have any questions or need additional information please do not hesitate to call me at (704) 586-0007. a`,����i��lttt��i Sincerely, `�� N CARPI tee` ORS • �c....��r :�� /��' °' SSf '• f Hart & Hickman, PQ SEAL •. 25069 �. Matt Bramblett, PE Principal ` • r �� `r :6�tEl cc: Ms. Lori Hinnant, K&L Gates (via email) Ms. Andrea Haines, Crowne (via email) Mr. Chris Howlett, LRC (via email) Attachments S:\AAA-Master Projects\Crown Partners Inc - CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\Brownfields Work Plan Witherspoon Nursey (BPN 22004-18-032)20181116,doc hart � hickman SMARTER ENVIRONMENTAL SOLUTIONS Table 1. Proposed Brownfields Assessment Locations and Analyses Witherspoon Nursery West Durham, NC Approximate Boring Depth # of Soil # of Water Area of Concern ft Samples Soil Analyses Samples Groundwater Analyses Former Administrative Building 25 0 None 1 VOCs (8260) and semi-VOCs (8270) Heating Oil Tank Former Administrative Building VOCs (8260), semi-VOCs (8270), total RCRA Septic Field 25 1 Metals (6020/7471), and hexavalent 1 VOCs (8260) and semi-VOCs (8270) chromium (7199) Former Septic Field to the South 5 1 VOCs (8260) and semi-VOCs (8270) 0 None Downgradient of Former Septic Field to the South and Prior 25 0 None 1 VOCs (8260) and semi-VOCs (8270) Groundwater Sample Location VOCs (8260), semi-VOCs (8270), total RCRA Duplicate Varies 1 Metals (6020/7471), and hexavalent 1 VOCs (8260) and semi-VOCs (8270) chromium (7199) Trip Blank Not Applicable 0 None 1 VOCs (8260) Notes: EPA Method Number Follows Parameter in Parenthesis VOCs = Volatile Organic Compounds Table 1 S:WAA-Master Projects\Crowne Partners Inc- CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\18-517 Assessment Plan Durham Hatt Hickman, Pl. Date: 11/7/2018 Table 2. Proposed Brownfields Assessment Locations and Analyses Witherspoon Nursery East Durham, NC Approximate # of Boring Depth Sediment # of Water Surface Water or Groundwater VOCs (8260), semi-VOCs (8270), VOCs (8260), semi-VOCs (8270), organochlorine pesticides (8081), organochlorine pesticides (8081), organophosphorus pesticides (8141), Irrigation Pond 0 to 0.5 ft 2 organophosphorus pesticides (8141), 2 herbicides (8151), total RCRA metals herbicides (8151), total RCRA metals (6020/7471), dissolved RCRA metals (6020/7471), hexavalent chromium (7199) (6020/7471), hexavalent chromium (7199), nitrate (353.2) Monitoring Well Downgradient of Up to 25 ft 0 None 1 VOCs (8260) and semi-VOCs (8270) I Sumps Notes: EPA Method Number Follows Parameter in Parenthesis VOCs = Volatile Organic Compounds Table 2 S:WAA-Master Projects\Crowne Partners Inc- CRP\CRP.001 Crowne at 501 LP Durham BFs\Work Plan\18-517 Assessment Plan Durham Hatt Hickman, Pl. Date: 11/7/2018 APPROXIMATE N 0 2000 4000 SCALE IN FEET U.S.G.S. QUADRANGLE MAP SOUTHWEST DURHAM, NORTH CAROLINA, 2002 QUADRANGLE 7.5 MINUTE SERIES (TOPOGRAPHIC) LL o o 0 o 0 o It L. " CHIPOTLE MEX (3219 WAT4I S ROAD) FORMF-R ADMINISTRATIVE BUILDING AND RESIDENCE �►' i FORMER HEATING OIL 7W + 4 M% J11 ABOVEGROUND STORAGE TANK (AST-3) �QI JINISTRATIVE BUILDING SEP I IN FIELD �MEDICAL OFFICES (5324 MCFARLAND DRIVE) AL -& ,L IL Aak a _ ,11 a a -:.F t I SPRING HILL C SUITES C 10 MCFARLAND DRIVE) Z # o w } t .br SEPTIC DRAIN FIELD - qw HOME 2 SUITES (3305 WATKINS ROAD) WATKINS ROAD 74 FORMER ADMINISTRATIV OFFICE AND RESIDENCE J J&ERSPOON RY EAST . -� A �. WITHERSPOON IRRIGATI NURSERY WEST POND 4 uutetif STORAG .4 16 ® FFIC STORAG 1 STORAGE ST a { FORMER DIESEL A�EGRO k STORAGE TANK (A3P1) ,TORA f0m"pOsT,sb0:L ND DRIVE v Now S. AL LEGEND s SITE PROPERTY BOUNDARY BROWNFIELDS SITE INTERNAL PARCEL LINE PARCEL LINES ® BASEMENT SUMP AST FORMER ABOVEGROUND STORAGE TANK Q APPARENT SEPTIC TANK WATER SUPPLY WELL db '+ A NOTES: 1. AERIAL OBTAINED FROM DURHAM COUNTY GIS. ONEMAIN FINA Q 11 WiTHERSfOC)&BLV z •r W O � 00 co O O ' W "44 AVAIL VAPOR (351 WITHERSPCON;VD) NY ASIAN BISTR (35 ITHERSPOON BLVD) } APPROXIMATE r SALONCEgN 0 100 200 r 19 WITHERS PO BLV J SCALE IN FEET 1 - � �E 0 .�■ SITE MAP P—ECr WITHERSPOON NURSERY i BROWNFIELDS PROJECT NO. 22004-18-032 3312 WATKINS ROAD * � � "Of WF4 ' DURHAM, DURHAM COUNTY, NORTH CAROLINA dt i 2923 South Tryon Street -Suite 100 r •r•f+� —� sn•,� hart hickman Charlorte,NorthCarolina 28203 704-586-0007(p) 704-586-0373(t • SMARTER ENVIRONMENTAL SOLUTIONS i.icens'e # C-1269 / #C-245 Geologc + DATE: 11-5-18 REVISION NO. 0 • NAI AND SP*- ILVD (3603 WIT RSPqfipnVD)i JOB NO. CRP-001 FIGURE NO. 2 a a a 2 0 2 a a 3 CHIPOTLE MEXICAN GRIL (3219 WATKINS ROAD) a i HOME 2 SUITES (3305 WATKINS ROAD) ,. d ' row *� v +• FORMER ADMINISTRATIVE WATKINS RO. c00, *'BUILDING AND RESIDENCE 4 FORMER HEATING OIL BOVEGROUND STORAGE TANK r i * r (AST-3) WIN ADMINISTRATIVE BUILDING SEPTIC DRAIN FIELD -sue MEDICAL OFFICES I T MW-4 �324 MCrARLAND DRIVE) A `a VP 1 ■ Aft.«- 41 v ,AMA qvp v SPRING HILL � SUITES LIJ 310 MCFARLAN I � DRIVE) � # o r SEPTIC DRAIN FIELD -i* ti7 FORMER ADMINISTRATIV OFFICE AND RESIDENCE ,r H7FRSPOON sw/SED a SERY EAST 'MTHERSPOON IRRIGATIOI NURSERY WEST POND 1 I SW/SED-2 4 S rORAG _ _ FFIC� �I�,Am.. STORAG lD Pi► Ak TMW-1A i� sB-1 • i TMW RJ D E STO ANK ., t, A r. -t J AST AST FORMER DIESEL ARO STORAGE TANK (Aj�EG ) STORA OMPOST/SOIL STORAGE • ND DRIVE r • 1 EX 3604 ITH S� i { +! db o r�. ONEMAIN FIPIAfiIIIIIilAL Q 11 WITHERS1OQ4,BLVD)� W O m � a- INN a- O O�co W AVAIL VAPOR (351 WITHERSPOONZVD) PEONY ASIAN BISTRO (3515 WITHERSPOON BLVD) _ I SALONCRN 19 WITHERS PO BLV II 1 40` 4 �r LEGEND SITE PROPERTY BOUNDARY BROWNFIELDS SITE INTERNAL PARCEL LINE PARCEL LINES PROPOSED TEMPORARY MONITORING WELL PROPOSED SOIL BORING PROPOSED SEDIMENT AND SURFACE WATER SAMPLE WATER SUPPLY WELL ® BASEMENT SUMP AST FORMER ABOVEGROUND STORAGE TANK Q APPARENT SEPTIC TANK NOTES: 1. AERIAL OBTAINED FROM DURHAM COUNTY GIS. 0 APPROXIMATE 0 100 SCALE IN FEET Me] PROPOSED SAMPLE LOCATION MAP PROJECT WITHERSPOON NURSERY wagon& BROWNFIELDS PROJECT NO. 22004-18-032 3312 WATKINS ROAD DURHAM, DURHAM COUNTY, NORTH CAROLINA dt i • 2923 South Tryon Street -Suite 100 F « _� — �. hart h i c k m a n Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f SMARTER ENVIRONMENTAL SOLUTIONS License # C-1269 / #C-245 Geology + DATE: 11-5-18 REVISION NO. 0 • NAIXAND SPA— (3603 WIT RSP nVD) JOB NO. CRP-001 FIGURE NO. 3