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Home My WebLink About22009 CNAD Assessment Work Plan 20180423 1 Via Email April 23, 2018 North Carolina Department of Environmental Quality Division of Waste Management – Brownfields Program 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Attn: Mr. Bill Schmithorst Re: Brownfields Assessment Work Plan Charlotte Naval Ammo Depot 3100 Nevada Boulevard Charlotte, North Carolina Brownfields Project No. 22009-18-060 H&H Job No. CHK-006 Dear Bill: 1.0 Introduction On behalf of Arrowood Land Investors, LLC (Prospective Developer or PD), Hart & Hickman, PC (H&H) has prepared this Work Plan to conduct Brownfields assessment activities for the Brownfields property located at 3100 Nevada Boulevard in Charlotte, Mecklenburg County, North Carolina (Site). The subject Site consists of approximately 17 acres of undeveloped wooded land located in a primarily light industrial and commercial area of Charlotte. A Site location map is provided as Figure 1 and the Site and surrounding area are shown on Figure 2. 2.0 Background Records for the Brownfields property date back to 1905 when the Site primarily consisted of agricultural land and/or pastures. In 1942, the Charlotte Naval Ammunition Depot (CNAD) began construction on a 2,266-acre facility that included the Site property and was used for munition disarmament and manufacturing. Historical structures associated with these activities Mr. Bill Schmithorst April 23, 2018 Page 2 S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\Brownfields Assessment Workplan\Submittal to DEQ 4-23-18\Brownfields Assessment Work Plan CNAD (BPN 22009-18-060)_20180423.doc were located on and around the Site property until their demolishment in the 1980s. Since then, the Site has remained vacant and wooded with the exception of a railroad track spur that was previously used by CNAD. Currently, the Site and surrounding properties are being investigated by the United States Army Corps of Engineers (USACE) on behalf of the Department of Defense under Federal Remediation Branch Site ID NC9799F4900. The results of the USACE groundwater assessment indicate that chlorinated volatile organic compounds (VOCs) have impacted the on-Site groundwater at concentrations that exceed 15A NCAC 02L .0202 Groundwater Standards (2L Standards). Remediation of impacted groundwater began in 2013 and continues through present day. The Site received eligibility into the DEQ Brownfields Program (Brownfields Project No. 22009-18-060) via a Letter of Eligibility dated March 6, 2018. The PD subsequently elected to participate in the Brownfields Program Redevelopment Now option. As part of this process, a kick-off/data gap conference call with the PD, counsel for the PD, DEQ Brownfields personnel, and H&H was held on March 20, 2018 to discuss prior Site history, proposed redevelopment plans, data gaps, and the proposed schedule for completing the Brownfields Agreement. H&H proposes to conduct soil, surface water, and sediment assessment activities to evaluate Site conditions for potential impacts associated with environmental concerns identified during previous investigations and the recent March 20th data gap meeting. In addition, H&H proposes to collect background soil samples at the Site to establish Site-specific ranges for naturally occurring metals. H&H will also conduct receptor survey activities in the area surrounding the Site as part of the proposed assessment. Our proposed scope of work is outlined in the following sections. Mr. Bill Schmithorst April 23, 2018 Page 3 S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\Brownfields Assessment Workplan\Submittal to DEQ 4-23-18\Brownfields Assessment Work Plan CNAD (BPN 22009-18-060)_20180423.doc 2.0 Brownfields Assessment Activities The proposed assessment activities will be performed in general accordance with the DEQ IHSB Guidelines for Assessment and Cleanup (Guidelines) dated October 2015, and the most recent versions of the U.S. Environmental Protection Agency (EPA) Region IV Science and Ecosystem Support (SESD) Field Branches Quality System and Technical Procedures guidance. Prior to conducting field activities, H&H will contact NC One-Call, the public utility locator, to mark subsurface utilities at the Site. H&H will also contract a private utility locator to mark utilities which may not be identified by the public locator. Additionally, each boring location will be hand cleared to a depth of approximately 5 feet (ft) below ground surface (bgs) to further screen the boring locations for the presence of subsurface utilities. 2.1 Receptor Survey H&H will perform a Brownfields receptor survey in accordance with DEQ Brownfields Section guidance. The receptor survey will include information about land use in the Site area including zoning. H&H will also conduct a field search for water supply wells, basements, utility manways and chases, storm sewers, other underground utilities, drains, and surface water within a 1,500 ft radius of the Brownfield property boundaries. In addition, H&H will review the online Mecklenburg County Well Information System about potential wells in the area and, if warranted, contact utility companies for information concerning underground utilities in the immediate area of the Site. A template copy for the Brownfields Property Receptor Survey form is provided in Appendix A. Mr. Bill Schmithorst April 23, 2018 Page 4 S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\Brownfields Assessment Workplan\Submittal to DEQ 4-23-18\Brownfields Assessment Work Plan CNAD (BPN 22009-18-060)_20180423.doc 2.2 Background Soil Sampling Activities H&H proposes to advance up to two (2) shallow soil borings for collection of soil samples from areas at the Site that do not appear to have been affected by historical uses to evaluate background concentrations of metals. The locations of the background soil samples will be determined based upon field observations and review of historical aerial photographs. H&H will choose locations that are not in close proximity of historical buildings. The approximate proposed locations for the background soil borings are depicted on Figure 2. If the proposed locations shown on Figure 2 are significantly changed based on field observations, H&H will contact you to discuss the new sample locations. The background soil borings will be advanced utilizing a decontaminated stainless steel hand auger. Continuous soil samples will be collected from the center of the hand auger bucket at each boring. Soil samples will be logged for lithological description and field screened for indication of potential impacts by observation for staining, and the presence of volatile organic vapors using a calibrated photoionization detector (PID). The samples selected for laboratory analysis will be collected from shallow soil (no greater that 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 Resource Conservation and Recovery Act (RCRA) metals plus hexavalent chromium by EPA Methods 6010/7471/7196. Following sampling activities, the soil borings will be properly abandoned and the surface will be repaired similar to pre-drilling conditions. Additionally, the soil sample locations will be estimated using a hand-held global positioning system (GPS) unit. Mr. Bill Schmithorst April 23, 2018 Page 5 S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\Brownfields Assessment Workplan\Submittal to DEQ 4-23-18\Brownfields Assessment Work Plan CNAD (BPN 22009-18-060)_20180423.doc 2.3 Soil Sampling Activities In order to evaluate the potential for impacts in the soil, H&H proposes to advance five soil borings within the proposed building footprint. Specifically, the borings will be placed in the area of former CNAD Building 1-81. Proposed soil boring locations are provided on Figure 2. H&H will team with a drilling contractor to utilize a track-mounted direct push technology (DPT) drill rig to advance each boring to depths of approximately 15 ft bgs (or refusal). Continuous soil samples will be collected from each boring 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 PID. Based upon field screening results, one soil sample will be collected from each soil boring at the interval interpreted most likely to be impacted. If there are no obvious indications of potential impact based on field screening results at a soil boring, then a sample will be collected from the top two feet of the soil boring to evaluate surficial soils prior to grading activities associated with the proposed redevelopment. 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. The samples will be delivered to a North Carolina certified laboratory under standard chain of custody protocols for analysis of VOCs by EPA Method 8260B, semi-VOCs (SVOCS) by EPA method 8270D, RCRA metals plus hexavalent chromium by EPA Methods 6010/7471/7196, and polychlorinated biphenyl (PCB) Aroclors by EPA Method 8082A. Depending on the results of the PCB Aroclor analyses, up to one sample will also be analyzed for PCB congeners by EPA Method 1668A. 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 sub-meter GPS unit. Mr. Bill Schmithorst April 23, 2018 Page 6 S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\Brownfields Assessment Workplan\Submittal to DEQ 4-23-18\Brownfields Assessment Work Plan CNAD (BPN 22009-18-060)_20180423.doc 2.4 Surface Water and Sediment Sampling Activities H&H proposes to collect two (2) co-located surface water and sediment samples for laboratory analysis from on-Site portions of the unnamed tributaries of Steele Creek. Co-located surface water and sediment sample locations are shown on Figure 2. The surface water and sediment samples will be collected in a downstream to upstream order. If portions of the stream in the area of a proposed sample location are found to be dry, a sample will be collected at the nearest location with surface water. 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. Surface water samples will be collected during base flow conditions. Sediment samples will be collected from the base of the stream in the mid-portion of the stream channel at each sample location using a decontaminated stainless steel AMS dredge sampler. 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 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, and RCRA metals plus hexavalent chromium by EPA Methods 6010/7471/7196. Upon completion of sampling, the co-located surface water and sediment sample locations will be estimated using a hand-held GPS unit. Mr. Bill Schmithorst April 23, 2018 Page 7 S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\Brownfields Assessment Workplan\Submittal to DEQ 4-23-18\Brownfields Assessment Work Plan CNAD (BPN 22009-18-060)_20180423.doc 2.5 Quality Assurance/Quality Control Samples The following samples will be collected for quality assurance/quality control (QA/QC) purposes: • One duplicate soil sample, one duplicate surface water sample, and one duplicate sediment sample will be collected and analyzed for the same parameters as the parent samples. • One trip blank will accompany the surface water samples during sampling and the samples during shipment. The trip blank will be analyzed for VOCs by EPA Method 8260. Non-dedicated equipment and tools will be decontaminated prior to use at each boring or sampling location, or following exposure to soil, groundwater, surface water, and/or sediment. Laboratory 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 the method protocols and will include regular equipment maintenance, equipment calibrations, and adherence to specific sample custody and data management procedures. Samples will be analyzed in conjunction with appropriate blanks, laboratory duplicates, continuing calibration standards, surrogate standards, and matrix spiking standards in accordance with approved methodologies 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 estimated concentrations for compounds that are detected at levels above the laboratory method detection limit, but below the laboratory reporting limit (J Flags). 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 Mr. Bill Schmithorst April 23, 2018 Page 9 S:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\Brownfields Assessment Workplan\Submittal to DEQ 4-23-18\Brownfields Assessment Work Plan CNAD (BPN 22009-18-060)_20180423.doc cc: Chris Daly (via email) Jon Wilson (via email) Mary Katherine Stukes (via email) Attachments TITLE PROJECT SITE LOCATION MAP CHARLOTTE NAVAL AMMO DEPOTBROWNFIELDS PROJECT NO. 22009-18-0603100 NEVADA BOULEVARDCHARLOTTE, NORTH CAROLINA DATE: JOB NO: REVISION NO: FIGURE: 3-27-18 0 1CHK-006 SITE 0 2000 4000 APPROXIMATE SCALE IN FEETN U.S.G.S. QUADRANGLE MAP QUADRANGLE 7.5 MINUTE SERIES (TOPOGRAPHIC) FORT MILL, NORTH CAROLINA, 1996 CORD A G E S T R E E T BROO K F O R D S T R E E T VERSAR26 IW-18 IW-6 IW-7 IW-8 IW-9 IW-10 IW-11 IW-14 IW-5 IW-4 IW-3 IW-2 IW-1 IW-19 NADMW36 VERSAR22 NADMW65 NADMW38 NADMW66 NADMW57 NADMW58 NADMW37 REVISION NO. 0 JOB NO. CHK-006 DATE: 4-12-18 FIGURE NO. 2 CHARLOTTE NAVAL AMMO DEPOT BROWNFIELDS PROJECT NO. 22009-18-060 3100 NEVADA BOULEVARD CHARLOTTE, NORTH CAROLINA PROPOSED SAMPLE LOCATION MAP LEGEND SITE PROPERTY BOUNDARY SURFACE WATER FEATURE PROPOSED BUILDING FOOTPRINT FORMER LOCATION OF CHARLOTTE NAVAL AMMUNITION DEPOT BUILDING 1-81 MONITORING WELL LOCATION BEDROCK MONITORING WELL LOCATION ABANDONED MONITORING WELL LOCATION INJECTION WELL LOCATION PROPOSED SURFACE WATER/ SEDIMENT SAMPLE LOCATION PROPOSED SOIL BORING LOCATION PROPOSED BACKGROUND SOIL 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 Geology NOTES: 1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG CO. GIS DEPARTMENT (2017). 2.MONITORING WELL & INJECTION WELL LOCATIONS ARE APPROXIMATE AND BASED ON PIKA-PIRNIE JV, LLC'S REMEDIAL ACTION & PERFORMANCE MONITORING REPORT (MARCH 2017).NEVADA BOULEVARDS:\AAA-Master Projects\Childress Klein\CHK-006 Nevada Blvd and Cordage St\Figures\Proposed Sample Location Map.dwg, FIG 2, 4/12/2018 9:34:10 AM, zbarlow Appendix A Template Brownfields Property Receptor Survey Form North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Site: Address: City: County: Brownfields Project Number: Property and Building Characteristics a. Provide occupancy and use information. c. Describe the foundation construction. Include details on type, floor construction, and depth below grade. e. Are any subslab ventilation systems or moisture barriers in place? If so, please provide details. d. Describe the HVAC system in the building. Include available details on type, equipment location, source of air return, and design considerations (e.g. positive pressure?). % of property that is grassed areas (unpaved) % of property that is agricultural crops % of property that is paved Size of Property (acres) BROWNFIELDS PROPERTY RECEPTOR SURVEY This form was created to clarify and simplify preparing a receptor survey for a brownfield site. Please provide the information requested below. Distances are measured from the site property boundary unless otherwise indicated by the DEQ Brownfield’s Project Manager (PM). Current Usage Proposed UsageSurface Conditions % of property that is wooded/brush If an existing building is on-site, please respond to the following. Information can be provided on additional sheets as needed. If numerous buildings are on-site, consult with your PM as only information on specific buildings may be needed. b. Describe the construction of the builidng including materials (e.g. wood frame, block), type and size of openings (e.g. windows, bay doors), and height (number of stories). % of property that is covered by buildings Rev. 09/2015 Page 1 of 3 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Surrounding Property Land Use North-Northwest South East-Northeast West-Southwest Utilities Is there a septic system on-site? (Y or N) Please provide the utility providers for the subject property a. Natural Gas b. Sewer c. Electricity d. Other For surrounding properties, please complete the following table with available information. Is there a residence within 1,000 ft of the Property? Specific Land Uses of Interest Y/N * Distance (ft) Is a sanitary sewer within 100 ft of the Property boundary? For the subject property, please provide a map of known buried utilites. If available, include depth to top, construction material, and diameter of the utilities. In addition, please provide the following information on utilty providers. If additional assessment is required, the public utility locators should be contacted. This information can then be added to a site map. Y/N * Please provide information on the following land uses in the vicinity of the subject site, including a map of the surrounding areas. If specific receptors are present, please provide addresses of the facilities. DirectionUtility/Potential Receptor Is a buried electrical cable main within 100 ft of Property boundary? Is a storm water pipe within 100 ft of the Property boundary? * If yes, please provide a map or detailed information (distance, direction, depth) of the utility in correlation with the subject property. Is there a basement within 1,000 ft of the Property Distance (ft)Address Zoning/Land Use Proposed Usage Current Use/Occupant Is a school or daycare center within 1,000 ft of the Property? Is a water line main within 100 ft of Property boundary? Is a natural gas line main within 100 ft of the Property boundary? Is a buried telephone/ cable main within 100 ft of the Property boundary? Is a septic system leach field within 500 ft of the Property boundary? Direction Rev. 09/2015 Page 2 of 3 North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program Water Supply What is the potable water supply for the property? Public Private ______ Surface Water & Wetlands b. List the uses of the water body. c. What is the source of the water for the water body? d. What is the nature of the bottom of the water body (e.g., rocky or concrete bottom, drainage ways or impoundments) If no on-site surface water features, what is the nearest surface water body? Are there any wetlands present on the property? If no wetlands on-site, are wetlands suspected on adjoining properties? a. Is the water body naturally developed or man-made? Is a public water supply well within 1 mile of the Property boundary? Is a private water supply well within 1,500 ft of the Property boundary? Is an irrigation well within 1,500 ft of the Property boundary? Response/Comments The purpose of this section is to provide information on the presence of surface waters and/or wetlands on, or in the vicinity of the Property. Are there surface water features on the property? (If yes, please complete a. to d.) If Private, please provide details of the water supply source (i.e. well location, well construction, etc). If public, please include the water providers name. Distance (ft)Direction Provide Information regarding Surface Water and Wetlands Y/NWater Supply Wells Please provide the following information regarding water supply wells in the vicinity of the Property. At a minimum, a windshield survey within 1,500 ft of the property boundaries should be completed to determine if water supply or irrigation wells may be present. Information from applicable databases can and should be utilized; however, should not be utilized in lieu of the windshield survey. If multiple wells are present within the requested radius, please provide a map of the well locations. If needed, please attach a separate table to list all wells. Please note, the PM may opt for a more extensive water supply well survey if needed. The purpose of this section is to provide information on the water supply for the site and surrounding areas. Address Rev. 09/2015 Page 3 of 3