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Home My WebLink AboutAS-1152_12170_CA_MRP_20231102_GW Report CES Group Engineers, LLP IMPROVING. PROTECTING. RESTORING. CHARLOTTE, NC 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 COLUMBIA, SC 1411 Gervais Street, Suite 140 Columbia, SC 29201 www.ces-group.net November 2, 2023 Scott Ryals, PE Environmental Engineer North Carolina Department of Environmental Quality DWM UST Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 RE: Groundwater Monitoring Report Silver Creek Airport Incident No.: 12170 UST ID No.: AS-1152 Facility ID No.: 00-0-0000034074 130 Silver Creek Airport Road Morganton, Burke County, North Carolina 28655 Dear Mr. Ryals: CES Group Engineers, LLP (CES), while under contract with the North Carolina Department of Environmental Quality (NCDEQ), Contract No.: N042023, executed on February 24, 2023, is submitting this Groundwater Monitoring Report to you electronically via email. The performed work was authorized by NCDEQ Task Authorization (TA) #01, approved on October 3, 2023. Should you have any questions regarding this submittal, please do not hesitate to contact me at (704) 325-5408. Regards, Greg Hans, PMP Environmental Division Manager Enclosures: Groundwater Monitoring Report CES Group No.8219.1023E November 2, 2023 GROUNDWATER MONITORING REPORT Silver Creek Airport 130 Silver Creek Airport Road Morganton, Burke County, North Carolina 28655 NCDEQ Incident No.: 12170 UST ID No.: AS-1152 Facility ID No.: 00-0-0000034074 November 2, 2023 Prepared for: Mr. Scott Ryals NCDEQ DWM UST Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Prepared by: CES Group Engineers, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, North Carolina 28273 ii CES Project No. 8220.1023E November 2, 2023 TABLE OF CONTENTS Page 1.0 SITE INFORMATION ...................................................................................................... 1 1.1 Identification ........................................................................................................ 1 1.2 Contact Information............................................................................................. 1 1.3 Release Information ............................................................................................ 1 1.4 Certification ......................................................................................................... 2 2.0 EXECUTIVE SUMMARY ................................................................................................ 3 3.0 SCOPE OF SERVICES .................................................................................................. 4 4.0 SITE HISTORY AND CHARACTERIZATION ................................................................ 5 4.1 UST Owner and Operator Information ............................................................... 5 4.2 Underground Storage Tank Information ............................................................. 5 4.3 Non-Underground Storage Tank Information ..................................................... 6 4.4 Release Description ............................................................................................ 6 4.5 Site Characteristics ............................................................................................. 6 4.6 Affected Property Owners and Occupants ......................................................... 6 4.7 Receptor Information .......................................................................................... 7 4.8 Remedial Plan Implementation ........................................................................... 7 4.9 Remediation Progress ........................................................................................ 7 5.0 CURRENT SITE ASSESSMENT INFORMATION ......................................................... 8 5.1 Water Level and Free Product Thickness Measurements ................................. 8 5.2 Groundwater Monitoring and Sampling Event ................................................... 8 5.3 Surface Water Monitoring and Sampling Event ................................................. 8 5.4 Soil Monitoring and Sampling Event .................................................................. 8 5.5 Summary of Groundwater and Free Product Assessment Information ............. 8 5.6 Site Geology and Hydrogeology ......................................................................... 9 5.7 Evaluation of Groundwater and Free Product Thickness Information ............... 9 5.8 Groundwater Remediation .................................................................................. 9 6.0 CONCLUSIONS AND RECOMMENDATIONS ............................................................ 10 6.1 Conclusions ....................................................................................................... 10 6.2 Recommendations ............................................................................................ 10 7.0 REFERENCES ............................................................................................................. 11 iii CES Project No. 8220.1023E November 2, 2023 FIGURES FIGURE 1 SITE LOCATION MAP FIGURE 2 SITE PLAN FIGURE 3 GROUNDWATER CONCENTRATION, ELEVATION, AND ESTIMATED EXTENT OF CONTAMINATION MAP (OCTOBER 2023) TABLES TABLE B-1 SITE HISTORY – UST/AST SYSTEM AND OTHER RELEASE INFORMATION TABLE B-2 SITE HISTORY – UST/AST OWNER/OPERATOR AND OTHER RESPONSIBLE PARTY INFORMATION TABLE B-4 SUMMARY OF GROUNDWATER ANALYTICAL RESULTS TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION TABLE B-9 CURRENT GROUNDWATER ELEVATIONS AND FREE PRODUCT THICKNESS APPENDICES APPENDIX A SITE PHOTOGRAPHS APPENDIX B MONITORING FIELD DATA SHEET, JOB HAZARD ANALYSIS, AND HEALTH & SAFETY PLAN APPENDIX C GROUNDWATER LABORATORY REPORT AND CHAIN-OF-CUSTODY RECORDS iv CES Project No. 8220.1023E November 2, 2023 ACROYNMS AND ABBREVIATIONS AST Aboveground Storage Tank CES CES Group Engineers, LLP COC Chain-of-Custody DTW Depth to Groundwater DWM Division of Waste Management EDB Ethylene Dibromide EPH Extractable Petroleum Hydrocarbons GCL Gross Contaminant Level HASP Health and Safety Plan ID Identification IPE Isopropyl Ether JHA Job Hazard Analysis LNAPL Light Non-Aqueous Phase Liquid LSA Limited Site Assessment MADEP Massachusetts Department of Environmental Protection MTBE Methyl tert-Butyl Ether MW Monitoring Well N/A Not Applicable NC North Carolina NCDEQ North Carolina Department of Environmental Quality NORP Notice of Residual Petroleum PE Professional Engineer PIN Parcel Identification Number sVOCs Semi-Volatile Organic Compounds UST Underground Storage Tank VOCs Volatile Organic Compounds VPH Volatile Petroleum Hydrocarbons Waypoint Waypoint Analytical, LLC 1 CES Project No. 8220.1023E November 2, 2023 1.0 SITE INFORMATION 1.1 Identification Date of Report: November 2, 2023 Site Risk/Ranking: LOW Facility ID:00-0-0000034074 UST Incident Number (if known): 12170 / AS- 1152 Site Name: Silver Creek Airport Street Address:130 Silver Creek Airport Road City/Town:Morganton Zip Code: 28655 County: Burke Description of Geographical Data Point (e.g., UST):Approximate Monitoring Wells (MW-1 and MW-2) Location Method (GPS, topographical map, online map, other):GIS Address Matching Latitude (decimal degrees):35.728756 Longitude(decimal degrees): -81.732521 1.2 Contact Information UST/AST Owner: Silver Creek Aviation, Inc. Email: N/A Address: P.O. Drawer 310, Morganton, NC Tel: N/A UST/AST Operator: Silver Creek Aviation, Inc. Email: N/A Address: 44 Silver Creek Airport Road, Morganton, NC Tel: N/A Property Owner: Dr. Rocco F. DiSanto Email: drdisanto@gmail.com Address: 990 3rd Ave SE, Hickory, NC Tel: 828-413-7772 Property Occupant: Silver Creek Airport Email: N/A Address: 130 Silver Creek Airport Road, Morganton, NC Tel: N/A Consultant/Contractor: CES Group Engineers, LLP. Email: ghans@ces-group.net Address: 3525 Whitehall Park Drive, Ste150, Charlotte, NC 28273 Tel: 704-325-5408 Analytical Laboratory: Waypoint Analytical State Certification No: 402 Address: 449 Springbrook Road, Charlotte, NC 28217 Tel: 704-529-6364 Drilling Contractor: N/A Email: N/A Address: N/A Tel: N/A 1.3 Release Information Date Discovered: 5/19/1994 (According to a review of historical UST files, records and/or databases) Estimated Quantity of Release: Unknown Cause of Release: Unknown Source of Release (e.g., Dispenser/Piping/UST):USTs Sizes and Contents of Tanks or Other Containment from which the Release Occurred:  Three 4,000-gallon gasoline USTs 2 CES Project No. 8220.1023E November 2, 2023 1.4 Certification I, Charles D. Heleine, a North Carolina Licensed Professional Engineer (PE) employed by CES Group Engineers, LLP (CES), do certify that the information contained in this report is accurate, to the best of my knowledge. E-Signature 10/31/2023 Charles D. Heleine, NC PE No. 27196 CES is licensed to practice engineering in North Carolina (license number F-1240). 3 CES Project No. 8220.1023E November 2, 2023 2.0 EXECUTIVE SUMMARY This Groundwater Monitoring Report (GW Report) summarizes petroleum hydrocarbon impacts in groundwater from an apparent release of petroleum-related constituents from an underground storage tank (UST or tank) system (removed in March, 1994), located at Silver Creek Airport, 130 Silver Creek Airport Road, Morganton, Burke County, North Carolina (hereafter identified as the site, subject site, subject property, or property). CES has been authorized to perform groundwater sampling activities by the North Carolina Department of Environmental Quality (NCDEQ), represented by Scott Ryals, Professional Engineer. Three 4,000-gallon gasoline USTs were removed from the site in March, 1994. Subsequent soil and groundwater assessment and monitoring activities were conducted at the site and reported petroleum-related constituent concentrations above applicable NCDEQ soil and groundwater standards from the area of the former tank grave, ie MW-1. On October 10, 2023, under the direction of CES, a depth to groundwater (DTW) measurement was recorded from existing monitoring wells MW-1 and MW-2, using a water level meter capable of detecting light non-aqueous phase liquid (LNAPL) and free product to an accuracy of 0.01 feet. Free product was not detected in MW-1 or MW-2. DTW was measured at 8.89-feet below ground surface (bgs) in MW-1 and 10.03-feet bgs in MW-2. Groundwater samples were then collected from MW-1 and MW-2 in laboratory provided glassware and vials, placed on ice, and hand delivered under chain-of-custody (COC) procedures to Waypoint Analytical, LLC (Waypoint) of Charlotte, North Carolina on October 11, 2023, for laboratory analysis of volatile organic compounds (VOCs) by 6200B including methyl tert-butyl ether (MTBE)/isopropyl ether (IPE)/ethylene dibromide (EDB) and sVOCs by 625 base/neutral and acids (BNA). Groundwater laboratory analytical results from MW-1 and MW-2 reported petroleum-related constituent concentrations below the NCDEQ 2L Standard and the Gross Contaminant Level (GCL). According to information retrieved from the NCDEQ UST Incidents Map, the site was previously assigned a Low-Risk classification by NCDEQ. To date, no known receptors have been impacted by the reported petroleum release, nor are any receptors known to be at an imminent risk of being impacted, based on a limited review of current groundwater conditions, including contaminant levels and the location of contaminants. This report provides data necessary to fulfill a GW Report, in accordance with 15A NCAC 2L.0100, and is formatted in conformance with Appendix A of the Guidelines for Assessment and Corrective Action for UST Releases, dated June 21, 2023. Based upon groundwater concentration levels reported below applicable groundwater standards (NCDEQ 2L Standard and the GCL) from MW-1 and MW-2, and the previously reported Low-Risk classification, without a foreseeable risk of impacting nearby receptors due to the reported concentration levels of petroleum-related constituents, and with the historical and future planned use of the subject property as a privately-owned, non-commercial airport, it is the opinion of CES that a notice of No Further Action (NFA) can be issued for Incident 12170. 4 CES Project No. 8220.1023E November 2, 2023 3.0 SCOPE OF SERVICES The scope of services for this report were authorized by NCDEQ Task Authorization (TA) #01, approved on October 3, 2023, under CES Contract Number N042023, dated February 24, 2023. In accordance with the approved TA, the scope of services included the following:  Initial site mobilization to assess the status of existing onsite monitoring wells.  Monitor and collect up to three groundwater samples from existing monitoring wells and a field blank for laboratory analysis by VOCs by 6200B including MTBE/IPE/EDB and sVOCs by 625 BNA.  Prepare and submit one GW Report summarizing the field and laboratory analytical findings. During the groundwater monitoring and sampling event conducted on October 10, 2023, after further field investigative measures were undertaken to locate additional onsite monitoring wells, none were located and/or were believed to be destroyed. As a result, the scope of services for this TA was modified to include the monitoring, sampling, and analysis of two monitoring wells, identified as MW-1 and MW-2, and included the collection and analysis of one field blank sample. 5 CES Project No. 8220.1023E November 2, 2023 4.0 SITE HISTORY AND CHARACTERIZATION The subject site is located at 130 Silver Creek Airport Road, Morganton, North Carolina, and currently operates as a privately-owned, non-commercial airport, and has been further identified as Morganton County Parcel Identification Number (PIN) 1793010262. Figures 1 and 2 depict a Site Location Map and Site Plan, respectively. According to an online review of the NCDEQ UST Incidents Map, an incident was reported to NCDEQ on May 19, 1994, and was subsequently assigned Incident Number 12170, and was further classified as a Low-Risk site for a regulated (R) and commercial (C) UST system. 4.1 UST Owner and Operator Information UST Owner: Silver Creek Aviation, Inc. Address: P.O. Drawer 310, Morganton, North Carolina Phone: N/A UST Operator: Silver Creek Aviation, Inc. Address: 44 Silver Creek Road, Morganton, North Carolina Phone: N/A Other Person Associated With Release: (Site accepted into State-Lead Cleanup Program) Address: N/A Phone: N/A Current Property Owner: Dr. Rocco F. DiSanto Address: 990 3rd Avenue SE, Hickory, North Carolina Phone: N/A On September 18, 2023, the site was accepted into the NCDEQ State-Lead Cleanup Program to conduct further investigative measures relative to Incident Number 12170. Additional responsible party information is provided in Table B-1 and Table B-2, and above in Section 1.2. 4.2 Underground Storage Tank Information A general summary of the UST system is presented below, with further information included in Tables B-1 and B-2: UST ID Number Current/Last Contents Capacity (gallons) Date Installed Permanently Closed/Date Removed Discovery of Release 1 Gasoline 4,000 1983 Removed 5/8/1994 Yes 2 Gasoline 4,000 1983 Removed 5/8/1994 Yes 3 Gasoline 4,000 1983 Removed 5/8/1994 Yes * It should be noted that UST information was retrieved from a Comprehensive Site Assessment (CSA) Report, prepared by INENCO, Inc of Davidson, NC, dated June, 1995. 6 CES Project No. 8220.1023E November 2, 2023 The approximate locations and orientation of the former USTs are depicted on Figure 2. 4.3 Non-Underground Storage Tank Information An aboveground storage tank (AST) or other above ground vessels or substantial petroleum storage containers were previously known to exist at the site, and contained waste oil. The waste oil was reportedly stored in a shed in the vicinity of the former UST system. The shed was eventually dismantled, and waste oil storage was relocated and kept in an AST in one of the airplane hangars. 4.4 Release Description Based on limited information made available to CES, a release of petroleum-related constituents occurred from the historical operation of the three onsite 4,000-gallon gasoline USTs (removed in March, 1994) with impacts to soil and groundwater being identified from the area of the former tank grave, and MW-1, during a Comprehensive Site Assessment (CSA), performed by INENCO, Inc. of Davidson, NC in June, 1995. The approximate location of the former USTs and monitoring wells MW-1 and MW-2 are depicted on Figure 2. 4.5 Site Characteristics The subject property is zoned Exclusive Industrial District (EID) in the City of Morganton, and includes one parcel occupying an area of 37.96 acres. According to the Burke County GIS, land uses of the subject property, as well as the surrounding properties, have been identified as industrial and residential uses. Based on site observations, natural surface drainage at the subject property generally flows in a southern direction. While not always the case, groundwater flow direction typically follows the direction of surface water flow, and is, therefore, anticipated to flow southernly. The adjoining properties south and east of the site across Silver Creek are residential parcels and the adjoining properties to the north and west of the site are industrial parcels. The subject site is situated at the end of Silver Creek Airport Road, a single lane asphalt surfaced road. The subject site contains five (5) airplane hangar buildings located on the north portion of the site. The airplane hangars range between approximately 2,500-square feet and 10,000-square feet. The remainder of the subject site is covered by landscaped areas and asphalt-pavement parking areas. The subject site is served by commercial utilities, including electrical power, telephone, and natural gas services. Public water distribution and sanitary sewer services provided by the City of Morganton serve the site. The site location in relation to area land use is illustrated in Figure 1. Site photographs, depicting key site features, are included in Appendix A. 4.6 Affected Property Owners and Occupants Based on petroleum-related constituents reported below applicable groundwater standards (NCDEQ 2L Standard and the GCL), nearby and surrounding property owners and occupants are not presumed to be impacted by the apparent release from Incident Number 12170. Groundwater analytical results are included in Table B-4. 7 CES Project No. 8220.1023E November 2, 2023 4.7 Receptor Information Water Supply Wells: Conducting a water supply well receptor survey was outside the scope of services for this groundwater monitoring and sampling event. However, no water supply wells were observed onsite, nor would be expected to be present on nearby or surrounding properties based on land use near the site. Public Water Supplies: According to the NC SWAPInfo 2.0 Map and NC One Map - Public Water Supply Well Resources Map, no public water supply wells are known to exist within a 1,500-feet radius of the subject property. Municipal water distribution systems provided by the City of Morganton are available to serve the subject property and surrounding properties. Surface Water: According to the NC One Map – Surface Water Classifications Map, the nearest surface water body is Little Silver Creek, located approximately 350-feet to the south-southwest of the site, with Silver Creek being located approximately 550-feet to the south-southeast of the site. According to the NC One Map – Surface Water Intakes Map, no surface water intakes are located within a 1,500-foot radius of the subject site. Wellhead Protection Areas: According to the NC SWAP website, and database of approved North Carolina Wellhead Protection Areas, no wellhead protection areas and/or approved wellhead protection plans are known to exist within a 1,500-foot radius of the subject site. Deep Aquifers in the Coastal Plain Physiographic Region: Not applicable to the subject site, as the site lies within the Piedmont Physiographic Region. Subsurface Structures: Underground utilities have been identified at and adjacent to the subject site, and residual soil and groundwater contamination may be in contact with these underground utilities. Groundwater has historically been measured approximately 9-feet bgs at the site. Because the underground utilities are expected to be at a shallower depth than 9-feet, the utility lines would not be considered receptors or conduits for groundwater contaminant migration. Table B-5 summarizes public and private water supply well and other receptor information. 4.8 Remedial Plan Implementation To date, it is the understanding of CES that a remedial plan has not been submitted and/or implemented for the subject site. 4.9 Remediation Progress Not applicable. 8 CES Project No. 8220.1023E November 2, 2023 5.0 CURRENT SITE ASSESSMENT INFORMATION Prior to the commencement of the groundwater monitoring and sampling event, CES prepared and reviewed a site-specific Job Hazards Analysis (JHA) and Emergency Management and Health & Safety Plan (HASP), acknowledging that potential hazards exist onsite, and were properly recognized and evaluated by onsite personnel. A copy of the site-specific JHA and HASP are included in Appendix B. 5.1 Water Level and Free Product Thickness Measurements During this assessment phase, a DTW measurement was collected from MW-1 and MW-2 on October 10, 2023, utilizing a water level meter capable of detecting LNAPL and free product to an accuracy of 0.01 feet. Free product was not detected in any onsite monitoring wells. After measuring DTW in MW-1 and MW-2, the water level meter was decontaminated by using a soapy water mixture (alconox and water). DTW in MW-1 was 8.89-feet bgs and 10.03-feet bgs in MW-2 on October 10, 2023. Based on visual observations at the site and surrounding area, groundwater flow direction is anticipated to flow in a southernly direction towards Little Silver Creek and Silver Creek. A summary of the DTW measurement is included in Appendix B and on Table B-9. 5.2 Groundwater Monitoring and Sampling Event After collecting DTW measurements, and after calculating the volume of water to be removed from MW-1 and MW-2, a dedicated 1.5-inch disposable bailer was used to purge approximately three to five well volumes from each monitoring well. Groundwater samples were then collected in laboratory provided glassware and vials, placed on ice, and hand delivered under COC procedures to Waypoint on October 11, 2023, for analysis of VOCs by 6200B including MTBE/IPE/EDB and sVOCs by 625 BNA. Prior to the commencement of the groundwater monitoring and sampling event, a field blank was collected onsite by pouring deionized water, issued by the laboratory, into laboratory provided glassware and was also submitted for analysis of the above-referenced parameters. 5.3 Surface Water Monitoring and Sampling Event No surface water monitoring events were conducted during this groundwater monitoring and sampling event. 5.4 Soil Monitoring and Sampling Event No soil monitoring events were conducted during this groundwater monitoring and sampling event. 5.5 Summary of Groundwater and Free Product Assessment Information Groundwater laboratory analytical results from the sample collected on October 10, 2023, reported petroleum-related constituent concentrations below applicable groundwater standards (NCDEQ 2L Standard and the GCL). 9 CES Project No. 8220.1023E November 2, 2023 Figure 2 depicts the location of MW-1 and MW-2. A groundwater concentration, elevation, and estimated extent of contamination plan is included as Figure 3. A summary of groundwater analytical results is included on Table B-4. Copies of the groundwater laboratory analytical report are included as Appendix C. 5.6 Site Geology and Hydrogeology According to the Geological Map of North Carolina (1985), the subject site is located within the Piedmont Physiographic Province, is underlain by the metamorphic rocks of the Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown Mountain Anticlinorium, and is within a magmatitic granitic gneiss formation. A description of the underlying Rock Unit is OCgm is a foliated to massive, granitic to quartz dioritic; biotite gneiss and amphibolite common. According to the US Department of Agriculture, Natural Resources Conservation Service, Web Soil Survey, soils at the subject property consist of Colvard sandy loam (CvA), which generally have 0 to 3 percent slope, and are classified as well drained fine sandy loam (0 to 60-inches) and a gravelly sand (60 to 80-inches). Parent materials were classified as loamy and sandy alluvium. Based on groundwater surface elevation, as measured from MW-1 and MW-2 on October 10, 2023, as summarized in Table B-9, and from site observations relative to the general gradient at the site, apparent groundwater movement across the site is presumed to flow in a southernly direction. A groundwater elevation plan for the October 10, 2023, groundwater monitoring and sampling event, depicting the groundwater elevation and apparent flow direction to the south, is presented as Figure 3. 5.7 Evaluation of Groundwater and Free Product Thickness Information Based on petroleum-related constituents detected below applicable groundwater standards (NCDEQ 2L Standard and the GCL) during the groundwater sampling event conducted on October 10, 2023, groundwater at the site is no longer impacted by the release condition from March, 1994. Free product was not detected in MW-1 or MW-2. The data obtained and reported herein is representative of conditions only at the referenced monitoring well and surface water locations and is not necessarily indicative of conditions elsewhere on the subject site. 5.8 Groundwater Remediation No groundwater remediation activities were conducted during this groundwater monitoring and sampling event. 10 CES Project No. 8220.1023E November 2, 2023 6.0 CONCLUSIONS AND RECOMMENDATIONS 6.1 Conclusions The findings of the October 10, 2023, groundwater monitoring and sampling event are as follows:  Two existing groundwater monitoring wells (MW-1 and MW-2) were monitored and sampled for VOCs by 6200B including MTBE/IPE/EDB and sVOCs by 625 BNA.  LNAPL or free product was not detected in MW-1 or MW-2.  DTW in MW-1 was measured at 8.89-feet bgs and 10.03-feet bgs in MW-2.  The apparent groundwater flow direction is to the south.  Petroleum-related constituent concentrations in groundwater were reported below applicable groundwater standards (NCDEQ 2L Standard and the GCL) in MW-1 and MW-2. 6.2 Recommendations Based upon groundwater concentration levels reported below applicable groundwater standards (NCDEQ 2L Standard and the GCL) from MW-1 and MW-2, and the previously reported Low-Risk classification, without a foreseeable risk of impacting nearby receptors due to the reported concentration levels of petroleum-related constituents, and with the historical and future planned use of the subject property as a privately-owned, non-commercial airport, it is the opinion of CES that a notice of No Further Action (NFA) can be issued for Incident 12170. However, during any potential and/or future site redevelopment activities, property transactions, and/or site improvements, it is the recommendation of CES that additional soil, groundwater and vapor assessment, monitoring and remediation activities be conducted at the site, as the data obtained and reported herein is representative of conditions only at the referenced monitoring well locations (MW-1 and MW-2) and is not necessarily indicative of conditions elsewhere on the subject property. 11 CES Project No. 8220.1023E November 2, 2023 7.0 REFERENCES INENCO, Inc., of Davidson, North Carolina. Comprehensive Site Assessment, dated June, 1995. FIGURES ^_ SITE LOCATION Drawn on: 10/26/2023 Drawn by: Amy Schmidt Reviewed by: Matthew Sumner 3525 Whitehall Park DriveSuite 150Charlotte, North Carolina 28273T: 704-489-1500www.ces-group.net³ 0 2,000 4,000 6,000 8,0001,000 FEET REFERENCE:USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System,National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National TransportationDataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data; U.S.Department of State Humanitarian Information Unit; and NOAA National Centers for Environmental Information, U.S.Coastal Relief Model. Data refreshed April, 2023.Figure 1Site Location MapSilver Creek Airport130 Silver Creek Airport RoadMorganton, Burke County, North CarolinaCES Project No. 8219.1023E 2 '5$:1%<%1 &+(&.('%<*+ 352-(&7180%(5 223( '5$:,1*7,7/( 6+((7180%(5 6($/ '$7(12'(6&5,37,21 '5$:,1*5(9,6,216352-(&7'(6&5,37,2136LOYHU&UHHN$LUSRUW5RDG0RUJDQWRQ1&6LOYHU&UHHN$LUSRUWSite PlanCES GROUP ENGINEERS, LLP NC FIRM LICENSE #F-1240 3525 WHITEHALL PARK DRIVE SUITE 150 CHARLOTTE, NC 28273 T 704. 489.1500 www.ces-group.net '$7(223 6&$/( 2 6LOYHU&UHHN$LUSRUW5G 0RUJDQWRQ1& 3 '5$:1%<%1 &+(&.('%<*+ 352-(&7180%(5 223( '5$:,1*7,7/( 6+((7180%(5 6($/ '$7(12'(6&5,37,21 '5$:,1*5(9,6,21636LOYHU&UHHN$LUSRUW5RDG0RUJDQWRQ1&6LOYHU&UHHN$LUSRUWGroundwater Concentration and Elevation andEstimated Extent of Contamination Map (October 2023)CES GROUP ENGINEERS, LLP NC FIRM LICENSE #F-1240 3525 WHITEHALL PARK DRIVE SUITE 150 CHARLOTTE, NC 28273 T 704. 489.1500 www.ces-group.net '$7(223 6&$/( 2 6LOYHU&UHHN$LUSRUW5G 0RUJDQWRQ1& TABLES Table B-1: Site History – UST/AST System and Other Release Information Revision Date: 10/25/2023 Incident Number and Name: 12170; Siler Creek Airport UST ID#: AS-1152 1 Gasoline Gasoline 4,000 Unknown Unknown Unknown 1983 Removed 5/8/1994 Yes 2 Gasoline Gasoline 4,000 Unknown Unknown Unknown 1983 Removed 5/8/1994 Yes 3 Gasoline Gasoline 4,000 Unknown Unknown Unknown 1983 Removed 5/8/1994 Yes UST ID Number Tank Dimensions (diameter x length) Construction Details Description of Associated Piping and Pumps Capacity (in gallons) Previous Contents Current/Last Contents Was release associated with the UST System? Status of USTDate Tank Installed Page 1 of 2 Table B-1: Site History – UST/AST System and Other Release Information Revision Date: 10/25/2023 Incident Number and Name: 12170; Siler Creek Airport UST ID#: AS-1152 Incident Number Material Released Date of Release 12170 Petroleum Unknown Date Tank Installed AST ID Number Current/Last Contents * Previous Contents * Capacity (in gallons) Construction Details ** Tank Dimensions Description of Release Presence of contaminated soil and groundwater during a Comprehensive Site Assessment performed by Inenco June 1995. Description of Associated Piping and Pumps Was release associated with the AST System? Status of AST *** Waste oil AST or other above ground vessel or substantial petroleum storage container are known to have existed for the site. Page 2 of 2 Table B-2: Site History - UST/AST Owner/Operator and Other Responsible Party Information Revision Date:10/25/2023 Incident Number and Name: 12170; Silver Creek Airport UST ID#: AS-1152 State Zip North Carolina 28680 State Zip North Carolina 28655 State Zip Street Address Silver Creek Aviation, Inc. Tanks 1-3 (1983 through March 1994) UST ID Number Facility ID Number Name of Owner Dates of Operation (mm/dd/yy to mm/dd/yy) 00-0-0000034074 1 2 3 City Telephone Number Morganton N/A P.O. Drawer 310 Name of Other Responsible Party Dates of Release(s) (mm/dd/yy to mm/dd/yy) Street Address City Telephone Number Morganton N/A Incident Number 12170 Street Address 44 Silver Creek Airport Road City Telephone Number Name of Operator Dates of Operation (mm/dd/yy to mm/dd/yy) Silver Creek Aviation, Inc. Tanks 1-3 (1983 through March 1994) Table B-4: Summary of Groundwater Analytical Results Revision Date: 10/31/2023 Incident Number and Name: Incident No. 12170; Silver Creek Airport UST ID#: AS-1152 6200B 6200B 6200B 6200B 6200B 6200B 6200B Sample ID Date Collected (m/dd/yy) Incident Phase MW-1 12/4/1994 CSA 42 BDL 1,140 BDL BDL BDL NA MW-1 4/13/1995 CSA 46.9 19.3 200 BDL BDL BDL NA MW-1 10/10/2023 GWR BDL BDL BDL BDL BDL BDL 1.95 J MW-2 4/13/1995 CSA BDL BDL BDL BDL BDL BDL NA MW-2 10/10/2023 GWR BDL BDL BDL BDL BDL BDL 2.01 J 1 600 600 500 20 70 400 5,000 80,000 260,000 50,000 20,000 70,000 4,000,000 µg/l = Micrograms per Liter GCL = Gross Contamination Level J = Detected but below the Reporting Limit; therefore, result is an estimated concentration Concentrations in BOLD and Highlighted Yellow reported above 2L Standards (December 4, 1994 and April 13, 1995) No concentrations were reported above 2L and GCL Standards (October 10, 2023) Constituents not listed above were reported as BDLs Laboratory analysis performed by Waypoint Analytical, Inc of Charlotte, NC (NC Certification No. 402)Methyl Ethyl Ketone (MEK)EthylbenzeneTolueneXylenesMTBEIsopropyl EtherAnalytical Method (e.g., VOCs by EPA 6200B)  Contaminant of Concern (mg/kg)  2L Standard (ug/L) (Effective 4/1/2022) GCL (ug/L) (Table 2 - Revised 10/8/2020)Benzene Table B-5: Public and Private Water Supply Well and Other Receptor Information Revision Date: 10/25/2023 Incident Number and Name: 12170; Silver Creek Airport UST ID#: AS-1152 Water Supply Well and Other Receptor Information Additional Information for Water Supply Wells (and Other Receptors, if applicable) Well # / ID (same as above) Public Water: Connected / Available / Not Available Well Currently Used for: Active / Inactive / Abandoned Construction Method and Well Type Total Depth (ft BGS) Screened Interval (x to y ft BGS) ft BGS = Feet below ground surface * Information retrieved from ATC Group Services, LLC of North Carolina, Limited Site Assessment Report, dated December 20, 2019 Receptor Description and Location Details ** Latitude/ Longitude ** (decimal degrees) Private / Public / Semi-Public Casing Depth (ft BGS) A Well Receptor Survey was outside the scope of work for this Groundwater Monitoring Report. A Well Receptor Survey was outside the scope of work for this Groundwater Monitoring Report. Distance from Source (ft) Street Address for Receptor * Ex: WSW = Water Supply Well, SWB = Surface Water Body, Resvr = Reservoir, PWS = Public Water Supply, PW = Public Well, SW = Supply Well, WPA = Wellhead Protection Areas, RA = Recharge Areas (for deep aquifers), Sub = Subsurface Structures, Con = Conduits, Other: ** The location and/or latitude/longitude (IN DECIMAL DEGREES) must be sufficiently accurate and precise to allow easy location of wells (or recovery if buried/paved/covered-over, lost, or otherwise damaged) and for the location / replication of sampling points for any other receptor. Coordinates are estimated based on physical location of onsite structure(s) *** Status: A = Active or IA = Inactive *and* Use: P = Potable or NP = Non-Potable Use. (Describe further in Additional Information for Water Supply Wells table below.) Up or Downgradient (if known) Well # Contact Name Source Status & Use *** Type *Owner/User/ Both Contact Phone # Page 1 of 1 Table B-9: Groundwater Elevations and Free Product Thickness Revision Date: 10/25/2023 Incident No. 12170; Incident Name: Silver Creek Airport UST ID#: AS-1152 Well ID #Top of Casing Elevation (MSL) Screened Interval (top of screen to bottom of screen, ft. bgs) Date Depth to Water* Uncorrected (ft. bgs) Free Product Thickness (ft.) Depth to Water* Corrected for Free Product Thickness (ft. bgs) Groundwater Surface Elevation (MSL) MW-1 N/A Unknown 10/10/2023 8.89' 0.0 N/A N/A MW-2 N/A 3 to 17 10/10/2023 10.03' 0.0 N/A N/A bgs = below ground surface ft. = feet MSL = mean sea level N/A = not applicable APPENDIX A SITE PHOTOGRAPHS View of monitoring well MW-1. View of monitoring well MW-1. View of monitoring well MW-2. View of old fueling dispenser on concrete pad. APPENDIX B MONITORING FIELD DATA SHEETS, SAMPLING PROTOCOLS, JOB HAZARD ANALYSIS, AND HEALTH & SAFETY PLAN Appendix C: Groundwater Monitoring Field Data Revision Date: 10/25/2023 Incident Number and Name: 12170; Silver Creek Airport UST ID No. AS-1152 Well ID Sampling Date (m/dd/yy) Well Casing Diameter (in.) Screened Interval (x to y ft. BGS) Depth of Well (ft. BGS) Top of Casing Elevation * (ft.) Depth to Water from Top of Casing (ft.) Free Product Thickness (ft.) Groundwater Elevation* (ft.)Sample Analysis Number of Sample Containers Proposed Purged Volume (gal) Actual Purged Volume (gal) Purge Comments MNA Parameters MW-1 10/10/2023 2 3 to 17 (Presumed based on total depth of monitoring well and MW-2 construction) 17 N/A 8.89 ND N/A 6200B + MTBE/IPE/EDB and 625 BNA 5 3-gal 3-gal Purged appr. 3-gallons prior to sampling. Bailer on bottom. Purged bailings observed to be clear to murky brown. No odor present, no sheen present on bailings. Not Collected Silver Creek Airport, NCDEQ Incident No.: 12170, UST ID No.: AS-1152 *: Top-of-Casing elevations not obtained under current task order / work order 1 ENVIRONMENTAL MANAGEMENT AND HEALTH AND SAFETY PLAN NCDEQ Project AS-1152_12170 Silver Creek Airport Off Romarco Road Morganton, Burke County, North Carolina CES PROJECT NUMBER: 8219.1023E Prepared by: CES GROUP ENGINEERS, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 October 6, 2023 i TABLE OF CONTENTS Page 1.0 INTRODUCTION 1 1.1 PURPOSE/OBJECTIVE 2 1.2 RESPONSIBILITIES FOR HEALTH AND SAFETY 3 1.3 SUBCONTRACTOR’S RESPONSIBILITY 3 2.0 ASSIGNMENT OF RESPONSIBILITY 4 2.1 SITE SAFETY OFFICER 4 2.2 PROJECT MANAGER(S) 5 3.0 BACKGROUND AND HAZARD EVALUATION 7 3.1 PROJECT DESCRIPTION 7 3.2 HAZARD EVALUATION 7 3.3 SAFETY DATA SHEETS (SDS) 8 4.0 AIR MONITORING 9 4.1 MONITORING EQUIPMENT 9 4.2 TYPES AND FREQUENCY OF MONITORING 10 4.2.1 Breathing Zone Monitoring 10 4.2.2 Explosive Gas Source Monitoring 10 4.2.3 Work Area Monitoring 10 4.2.4 Dust Monitoring 10 4.3 ACTION LEVELS 11 5.0 PERSONAL PROTECTIVE EQUIPMENT AND PROCEDURES 11 5.1 RESPIRATORY PROTECTION 11 5.2 PROTECTIVE CLOTHING 12 5.3 LEVELS OF PROTECTION 13 5.3.1 Modified Level D 13 5.3.2 Level D Protection 13 5.3.3 Level C Protection 14 5.3.4 Level B Protection 14 6.0 SITE CONTROL 15 6.1 REGULATED AREAS 15 6.2 ACCESS/SITE SECURITY 16 6.3 POSTING/BARRICADES 16 ii Page 7.0 POLICIES 16 7.1 GENERAL WORK PRACTICES 16 7.2 HEAVY EQUIPMENT OPERATION 17 7.3 SANITATION 19 8.0 DECONTAMINATION 19 8.1 PERSONAL DECONTAMINATION 20 8.2 EQUIPMENT DECONTAMINATION 21 9.0 TRAINING 22 9.1 BASIC TRAINING 22 9.2 SITE-SPECIFIC TRAINING 22 10.0 HEALTH MONITORING 23 10.1 PHYSICAL EXAMINATION 23 10.2 HEAT STRESS 23 10.3 COLD STRESS 24 10.4 SELF MONITORING 26 11.0 SITE STANDARD OPERATING PROCEDURES 26 11.1 WORK PRACTICES 26 11.2 COMMUNICATION PROCEDURES 27 12.0 EMERGENCY PROCEDURES 28 12.1 GENERAL 28 12.2 RESPONSIBILITIES 29 12.3 EMERGENCY CONTACT LIST 30 12.4 PERSONNEL INJURY IN THE EXCLUSION ZONE 32 12.5 PERSONNEL INJURY IN THE SUPPORT ZONE 32 12.6 FIRE OR EXPLOSION 32 12.7 PERSONAL PROTECTIVE EQUIPMENT FAILURE 32 12.8 POLLUTANT DISCHARGES/SPILLS 32 APPENDIX A Safety Data Sheet (Benzene - Volatile Organic Compounds) APPENDIX B Emergency Phone Numbers / Contact List APPENDIX C Route to Hospital 1 ENVIRONMENTAL MANAGEMENT AND HEALTH AND SAFETY PLAN (EMP) NCDEQ Project AS-1152_12170 Silver Creek Airport Off Romarco Road Morganton, Burke County, North Carolina 1.0 INTRODUCTION This Environmental Management and Health and Safety Plan (EMP), additionally referred to as the ‘plan”, has been developed for CES Group Engineers, LLP (CES), for application to work completed at NCDEQ AS-1152_12170, Off Romarco Road, Morganton, Burke County, North Carolina, under CES Project Number: 8219.1023E. For the purpose of this plan, the term “project” references “NCDEQ AS-1152_12170”. Additionally, this plan should also be utilized for any work completed at surrounding properties where contamination, or additional assessment activities, may be located. For the purpose of this plan, the term “subsurface investigation” will include, but is not limited to, geophysical investigations, drilling soil borings with conversion to temporary or permanent monitoring wells, excavation and removal of encountered underground storage tanks (USTs), and contaminated soils / groundwater, and additional assessment and remediation activities, which may include hand-augering of soil borings, installation of monitoring wells and/or remedial recovery wells, groundwater monitoring and sampling, and injections, and the abandonment of monitoring wells. The term “subsurface investigation” may also be referred to as “excavation” in this plan. The plan addresses health and safety procedures and information relevant to environmental services being provided by CES personnel, and/or subcontracted personnel. The health and safety portion of the plan provides procedures to minimize: (1) the potential for accidents from physical hazards, and (2) the potential for exposure to chemical contaminants during activities which disturb the subsurface materials in the event that contamination of soil or groundwater by special wastes is encountered. The Project Manager, assisted by the assigned Site Safety officer, will ensure that all on-site subcontractor personnel, and site visitors, comply with the specified health and safety requirements. At least one copy of this EMP will be maintained at the local office of CES, as well as one copy will be maintained onsite by CES, and/or subcontracted personnel. As part of CES’ safety program, a site-specific Job Hazard Analysis (JHA) form will be used, in conjunction with this plan, which will also include the name, address, and telephone 2 number of the nearest hospital in relation to the project address where work is being completed. CES personnel have been instructed to utilize 911 as the first call should an accident, or issue, be apparent that warrants an immediate emergency response action. This plan is intended for general use during subsurface investigation activities completed by CES personnel, or CES subconsultants/subcontractors, and as a general reference for workers to review and understand the potential environmental and health and safety conditions that may be present under normal subsurface investigation conditions. Additionally, this plan should also be utilized for any work completed at surrounding properties where subsurface investigation activities are, or may be required. Prior to initiating subsurface investigation activities, as those referenced above, CES personnel (Project Manager(s), Site Safety Officer, and/or Field Crews) will complete Job Hazard Analysis (JHA) and selected CES safety forms which detail job specifics, including the sequence of basic job steps, potential incidents or hazards, and recommended procedures to eliminate potential incidents or hazards. 1.1 PURPOSE / OBJECTIVE The protection of workers and environmental safety and health are major concerns during this project and cannot be understated. The objective of the EMP is to document procedures and precautions to be implemented during any geophysical investigations and installation of soil borings with conversion to permanent monitoring wells, and site assessments, including soil and groundwater monitoring and/or remediation activities, in order to provide for and promote safe working conditions at the site during field activities, specifically at locations where contamination of soil and groundwater has been documented and/or is expected to be encountered. The safety organization and procedures have been established based on a previous analysis of potential hazards at the site. Personal protection measures have been selected in response to these potential hazards. This EMP and HASP has also been developed based upon review of the requirements described in the U.S. Environmental Protection Agency (USEPA) Standard Operating Safety Guide and the U.S. Department of Labor OSHA standards 29 CFR Part 1910. Reasonable precautions will be taken by the contractor’s representative and its subcontractors to provide for and promote the safety and health of workers and the general public. Subcontractors will be given copies and will be required to follow this EMP. 3 1.2 RESPONSIBILITIES FOR HEALTH AND SAFETY All site activities which have the potential to expose personnel to site contamination or a related injury are subject to this EMP. Personnel will be responsible for adherence to the safety procedures during the performance of the work. In no case may work be performed in a manner that conflicts with the intent of, or the inherent safety and environmental cautions expressed in, these procedures. Following due warning(s), personnel who violate safety procedures will be dismissed from the site, and may be terminated. In the event that contamination is encountered during regular construction operations, personnel will be exclusively employed in the affected area of the project site, who have been properly trained in health and safety regulations associated with handling hazardous materials or special wastes as specified in the training section (Section 9.0) of this EMP. The requirements provided herein may be modified as the work progresses to accommodate changing conditions, but a reduction or increase in the health and safety requirements will not be made without prior approval by the assigned Site Safety Officer (SSO). The prevention of adverse health effects and injuries to site workers is totally dependent on the contribution of all project participants. Open communication among workers, supervisors, and management concerning safety at the site is an essential element of this EMP. 1.3 SUBCONTRACTOR’S RESPONSIBILITY The Subcontractor is solely responsible for the health, safety, and protection of their own on- site personnel during the performance of the survey services work scope. The Subcontractor will perform the work specified in the contract documents in accordance with the HEALTH AND SAFETY REQUIREMENTS specified herein, and federal, OSHA, state, and local health and safety regulations. It will be the responsibility of the Subcontractor to be familiar with the required health and safety regulations in the performance of this work. The Subcontractor will designate a Site Safety officer to implement and monitor activities related to this EMP. Should any unforeseen or site-specific safety-related factor, hazard, or condition become evident during the performance of the work, the Subcontractor will take immediate and prudent action to establish and maintain safe working conditions and to safeguard site personnel, the public, and the environment. 4 2.0 ASSIGNMENT OF RESPONSIBILITY All site activities which have the potential to expose CES personnel to site contamination or related injury are subject to this EMP. As previously discussed, all site personnel are responsible for adherence to the safety procedures during performance of the work. Specific oversight responsibilities are assigned to various personnel as discussed in the paragraphs to follow. 2.1 SITE SAFETY OFFICER The SSO will be assigned to monitor the daily activities to assure that all health and safety procedures/policies are being followed by CES personnel. This includes communicating the specific requirements to all personnel, including subcontractors, implementing the EMP, conducting site inspections to monitor compliance with EMP as required, providing or coordinating training as required, coordinating the medical monitoring program, coordinating respirator fit tests as required, coordinating the acquisition, calibration and maintenance of air monitoring equipment, respirators and other safety equipment, directing on-site health and safety activities, and reporting safety related incidents or accidents to the Project Manager. The SSO for CES is: Greg Hans, PMP CES Group Engineers, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 704.325.5408 (direct) 617.828.9948 (mobile) It should be noted that the SSO may and will delegate responsibilities to a representative of CES, subconsultants and/or subcontractors working at the Site and offsite properties for any and all tasks associated with additional subsurface investigation activities. 2.2 PROJECT MANAGER(S) The project manager is ultimately responsible for ensuring that all project participants abide by the requirements set forth in this plan. Any and all changes in the scope of health and safety requirements or site characterization will be communicated from the Project Manager and/or Environmental Scientist/Engineer to the SSO. 5 Environmental Project Manager: Greg Hans, PMP CES Group Engineers, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 704.325.5408 (direct) 617.828.9948 (mobile) Environmental Scientist: Matt Sumner CES Group Engineers, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 704.832.9876 (mobile) 3.0 BACKGROUND AND HAZARD EVALUATION 3.1 PROJECT DESCRIPTION This project involves monitoring of potentially contaminated soil and groundwater with petroleum related constituents, and may also include geophysical investigations or utility clearance, and the installation of soil borings with conversion to permanent monitoring wells via mechanical drilling techniques, and potential future assessment, monitoring and remediation of soil and groundwater contaminants potentially encountered by said or existing borings. Future activities at the site may include, but are not limited to excavation and removal of encountered underground storage tanks (USTs), and contaminated soils / groundwater, and additional assessment and remediation activities, which may include hand- augering of soil borings, installation of permanent monitoring wells and/or remedial recovery wells, groundwater monitoring, and injections, and abandonment of monitoring wells. During the completion of the aforementioned activities, heavy equipment and machinery, such as drilling rigs, excavators, back-hoes, dump trucks, etc may be utilized and present onsite. 3.2 HAZARD EVALUATION Constant attention will be given to physical hazards encountered during work day activities, particularly those activities associated near heavy equipment such as drilling, subsurface excavations, and/or earthmoving equipment. An evaluation of the potential hazards associated with site activities has been completed by reviewing the general construction 6 scope of work for each of the projects, to be performed by others. The following potential exposure pathways have been identified: · Dermal contact, inhalation and ingestion of contaminated soils and groundwater · Inhalation and ingestion of contaminated vapors and particles · Ingestion of waste solids (accidental/poor hygiene) · Dermal contact with waste solids Given that subsurface investigation activities may occur in close proximity to ongoing or future construction (ie, excavations) related activities that may disturb surficial and subsurface soils, pipes, etc and the physical properties of the contaminants that may be present at these locations, there is a potential respiratory hazard from contaminants such as petroleum related compounds, and therefore a contact hazard from petroleum related compounds. A respiratory hazard from dust and contaminated dust particles may also exist during nearby drilling, excavation and removal activities. It is recognized that site hazard evaluation is a dynamic and on-going process that changes on a daily basis during progression of the work. However, significant deviation from the prescribed site characterization will necessitate re-evaluation and possible EMP revision. Communication from the SSO will initiate the re-evaluation process by the Project Manager. 3.3 SAFETY DATA SHEETS (SDS) Consistent with 29 CFS 1910.1200, (Hazard Communication Standard) applicable Safety Data Sheets (or equivalent) will be kept on-site, in each vehicle, and with the Project Manager. All subcontractors must ensure that their employees are informed of their rights and responsibilities under the OSHA Hazard Communication Standard. Subcontractors will provide SDS sheets for items which they bring on the site, as applicable. Due to the presence of petroleum related constituents, a SDS for Benzene (prepared by Marathon Petroleum Company, dated 5/14/2015), as VOC concentrations may be encountered onsite, has been included as Appendix A. It should be noted that the attached SDS is representative of potential chemicals and materials that may be encountered in the field during subsurface investigation activities. Should these, or any other chemicals or hazardous materials, actually be encountered by CES employees while in the field, the hazards and exposures of these chemicals or hazardous materials will be re-evaluated. 7 4.0 AIR MONITORING The purpose of air monitoring during subsurface investigation activities is to identify and quantify airborne contaminants to determine the level of protection needed. Should air monitoring for airborne contaminants be necessary, air monitoring with direct reading instruments will be conducted during all intrusive activities. Four categories of air monitoring will be conducted as follows: · Breathing Zone Monitoring · Explosive Gas Source Monitoring · Work Area Monitoring · Dust Monitoring Equipment to be used in conducting air monitoring activities, along with a description of the type and frequency of monitoring and associated action levels are discussed in the paragraphs to follow. It should be noted that the contractors working in active construction zones, including but not limited to excavations, trenches, bore holes, etc should be responsible for proper air monitoring of these areas. However, should CES feel the need to perform additional air monitoring, the following procedures (as outlined in sections 4.0 through 6.0, and to an extent, sections 7.0 through 11.0) may be implemented. 4.1 MONITORING EQUIPMENT If CES employees are working in, or near, active construction zones where the potential exists for chemical hazards and exposures to be present, the breathing zones will be monitored using a MiniRAE portable VOC monitor. These instruments use a photoionization detector that is designed to measure trace quantities of VOCs with a parts-per-million (ppm) sensitivity range. It does not detect methane. The survey instrument will be calibrated using an appropriate standard according to manufacturer’s instructions. The VOC monitor will be calibrated prior to each use if the instrument is used infrequently, or daily when in constant use. If the MiniRAE portable VOC monitor detects elevated levels of VOC concentrations (> 50 ppmv), in ambient air at the site, a Gastech 02 /explosion/H2S meter will be used to measure oxygen concentrations, explosion potential, and hydrogen sulfide (H2S) concentration. The instrument will be calibrated with methane and H2S according to the manufacturer’s instructions. 8 Air monitoring equipment will be certified intrinsically safe and operated by personnel trained in the use of the specific equipment provided. 4.2 TYPES AND FREQUENCY OF MONITORING 4.2.1 Breathing Zone Monitoring The breathing zone of a representative employee suspected of greatest exposure for each job category engaged in work with potentially hazardous substances will be monitored as follows: · For excavation operations, monitor the breathing zone of the equipment operator and laborers with an OVM when the waste material is initially exposed. The results of the monitoring, the employee’s name, and the work activity will be recorded in the daily log 4.2.2 Explosive Gas Source Monitoring During all operations identified as having a fire/explosion hazard, a combustible gas meter set to measure the lower explosive level (LEL) will be used to continuously monitor the top of the trench or excavation. 4.2.3 Work Area Monitoring Each work area associated with hazardous waste spills and/or contamination will be monitored at least one time each day with an OVM to determine the concentration of contaminants being released into the general area. 4.2.4 Dust Monitoring Chemical exposure via inhalation will be mitigated through the evaluation of wind velocity, and common sense. Personal protective equipment will be utilized as necessary (based on specific action levels) to prevent chemical exposure in excess of the exposure limits. When possible, personnel should be situated upwind of work activity when working at the site. Excavated areas should be allowed to vent for one to two minutes prior to investigative activities to allow any vapors, dusts, or gases to dissipate. Liquids and solids should never be smelled to confirm the presence or absence of chemicals. 9 The SSO or CES representative will screen the site for dusty conditions to prevent inhalation of chemicals in particulate form (e.g. residue on soil grains). If dusty conditions are observed, all workers will wear appropriate respiratory protection designed for dusts. Extremely dusty conditions may require dust suppression via water mist or spray prior to returning to work. 4.3 ACTION LEVELS The action levels as prescribed by the National Institute for Occupational Safety and Health (NIOSH) will be used to initiate protective actions including, but not limited to, use of personal protective devices, shut down of specific work activities, and site evacuation. A current volume of the NIOSH Pocket Guide (electronic version) to Chemical hazards will, or may be utilized as an on-site referenced by the SSO. 5.0 PERSONAL PROTECTIVE EQUIPMENT AND PROCEDURES 5.1 RESPIRATORY PROTECTION During excavation or construction activities in an area where special wastes are expected or have been encountered, the use of respiratory protection equipment may be required. Respiratory protection is of primary importance as inhalation is one of the major routes of exposure to chemical toxicants. Respiratory protective devices include air purifying respirators, air-line respirators, and self-contained breathing apparatus. The following respiratory protection practices will be observed by all workers at the Site when conditions warrant respiratory protection: · The respiratory protection utilized on-site will be in accordance with OSHA, 29 CFR 1910.134 · Only properly cleaned, maintained, NIOSH/MSHA-approved, respirators will be used on-site (if required) · Selection of respirators, as well as any decisions regarding upgrading or downgrading of respiratory protection, will be made by the SSO 10 · Air-purifying cartridges will be replaced on a regular basis (at least once per day) as determined by the SSO · No employee will be assigned to tasks requiring the use of respirators if, based upon the most recent examination, a physician determines that the employee will be unable to function normally wearing a respirator or that the safety or health of the employee or other employees will be compromised by use of a respirator · Persons required to wear full-face respirators must not have beards or moustaches that interfere with proper respirator seal. All personnel wearing full-face respirators or personnel working in the exclusion zone will be required to be clean-shaven prior to each day’s shift. This will be strictly enforced by the SSO · All personnel required to use APRs must be properly fit tested prior to engaging in field activities in accordance with OSHA standards (29 CFR 1910.1025) 5.2 PROTECTIVE CLOTHING To protect workers against dermal contact with contaminants, the following apparel must be worn during site-specific work activities depending on the level of protection specified for those activities (Section 5.3 of this EMP): · Disposable Tyvek coveralls · PVC-coated or equivalent coveralls for splash protection · Nitrile gloves or equivalent · Inner gloves - latex or vinyl · Outer disposable boots · Hard hat · Chemical-resistant boots (Neoprene, PVC, or equivalent) · Hearing protection (as applicable) · Steel-toed safety shoes · Goggles or safety glasses will be worn at all times in the work area 11 · Sleeves taped to gloves and cuffs taped to boots · Face shield attachments for use with hard hats · Disposable, chemical-resistant outer boots Upgrading or downgrading selected protective equipment will be the decision of the SSO based on assessment of exposure potential during specific tasks. 5.3 LEVELS OF PROTECTION The levels of protection to be utilized at the site, and the activities to which they apply, are described in the following paragraphs. The SSO will select the appropriate level of PPE based on air monitoring results. 5.3.1 Modified Level D This is the minimum level of protective clothing to be worn at the site during subsurface investigation activities. All workers, supervisors, and visitors will be required to don the following clothing prior to entering the project site. Based on the anticipated activities to be performed at the site, it is anticipated that Modified Level D will provide adequate protection coverage. · Work clothes · Hard hat · Safety shoes · Visibility vest · Work gloves (only as necessary) 5.3.2 Level D Protection Level D protection includes chemical resistant gloves and will be used for site work whenever contact with contaminated equipment or materials is possible. The following clothing will be required for Level D: · Disposable, chemical-resistant outer boots · Coveralls (work uniform) · Hard hat · Eye protection (safety glasses, goggles, or face-shield)* · Safety shoes · Nitrile gloves* * Optional, as determined by SSO 12 Dust masks shall be used to reduce employee exposure to fugitive dust, an optional Level D device. The absence of dusty conditions at the site will be justification for the SSO to permit personnel to remove their masks. 5.3.3 Level C Protection Level C will be used for site work when the inhalation and dermal contact hazard is elevated. When conditions for Level C protection are appropriate, the following equipment will be required: · Tyvek coveralls/chemical-resistant protective coverall · Gloves (inner latex gloves and outer nitrile gloves) · Hard hat · Safety shoes · Full-face or half-face air purifying respirator with organic vapor cartridge (or other proper type cartridge for the intended use, as determined by the SSO) · Chemical-resistant outer boots · Tape gloves and boots to coveralls to prevent leakage · Hearing protection (as determined by SSO) 5.3.4 Level B Protection Level B will be used for site work when inhalation and dermal contact hazard are elevated to the point that a positive pressure, supplied air source is needed. · Saranex coveralls/chemical-resistant clothing · Gloves (inner latex gloves and outer nitrile gloves) · Hard hat · Self-contained breathing apparatus (SCBA), or Supplied Air- Line Respirator (SAR) · Chemical-resistant safety boots · Gloves and boots taped to prevent leakage 13 6.0 SITE CONTROL The purpose of site control is to minimize potential contamination of workers and to protect the surrounding area from hazards found at the site. If the project site is not secured by fencing or other suitable site control means and is not routinely patrolled by police or other independent security personnel; certain procedures must be followed to ensure suitable site control and limitation of access so that those persons who may be unaware of site conditions are not exposed to hazards. All excavations left open and unattended by site personnel will be appropriately barricaded and visibly posted with “No Trespassing” or other appropriate signage. All heavy machinery and equipment shall be locked or chained each evening upon completion of daily activities. All potentially contaminated media, such as soil, will be covered with plastic prior to leaving the site. 6.1 REGULATED AREAS As appropriate to the task conducted, the site vicinity will be divided into three zones to allow control of worker exposures. These zones are described as follows: · Exclusion Zone. This zone includes the actual area of contamination and localized work area where specific investigative and/or construction equipment is operating. This zone has the highest inhalation exposure potential, and/or presents a high probability of skin contact with cutaneous percutaneous - affecting chemicals. New exclusion zones may exist during certain site-specific activities. This will be defined by the SSO and access by individuals not necessary to operation will be limited. (Level D is minimum). · Contamination Reduction Zone. This zone includes the areas immediately surrounding the Exclusion Zone. All personnel and equipment leaving the Exclusion Zone shall be decontaminated in this zone. 14 Support Zone. This zone covers all areas outside of the Contamination Reduction Zone. Administrative activities are conducted in the Support zone, as well as equipment supply and first aid supply. It is essential that contamination be kept out of this zone. 6.2 ACCESS/SITE SECURITY Access to contaminated work areas (Exclusion and Contamination Reduction Zones) will be regulated and limited to authorized persons. Such persons include the Contractor’s employees, designated equipment operators, and designated union representatives, as applicable. The SSO will enforce access limitations during work hours. 6.3 POSTING/BARRICADES Warning signs will be posted and hung, as applicable, in readily visible locations in or near contaminated work areas. Barricades or barricade tape will be utilized to prevent access to various work areas as indicated above. 7.0 POLICIES 7.1 GENERAL WORK PRACTICES General work practices to be employed on-site are as follows: · At least one copy of this EMP will be available at the work site · No food or beverages will be present or consumed in the exclusion or contamination reduction zones. No tobacco products will be present or used, and cosmetics will not be applied in the exclusion or contamination reduction zones · No matches or lighters are permitted in the exclusion or contamination reduction zones · During operations within an area of contamination, all employees will be required to wash their hands and face before eating, drinking, smoking, or applying cosmetics 15 · Field personnel must observe each other for signs of exposure. Indications of adverse effects include, but are not limited to, the following: - Changes in complexion and skin discoloration - Changes in coordination - Changes in demeanor - Excessive salivation and pupillary response - Changes in speech pattern Field personnel will be cautioned to inform the SSO of non- visible effects of exposure such as the following: - Headaches - Dizziness - Nausea - Blurred vision - Cramps - Irritation of eyes, skin, or respiratory tract · 7.2 HEAVY EQUIPMENT OPERATION Extra attention should be paid to the following information regarding work around heavy equipment (cranes, excavators, front end/backhoe loaders, drilling rigs, etc.). · Use common sense · Follow OSHA requirements found in 29 CFR 1910 and 29 CFR 1926 · Wear hard hats, hearing protection, and safety glasses at all times (when not prohibited by the use of air purifying respirators). Wear other protective gear as specified in the Health and Safety Plan 16 · A closed cab or cage will be required for equipment used at the site · Pay attention at all times · Maintain visual contact at all times · Establish hand signal communication when verbal communication is difficult. Select one person per work group to be the one to give hand signals to equipment operators · Be aware of footing at all times · Be sure that all heavy equipment has a backup alarm · Be sure that only qualified people operate heavy equipment · Use chains, hoists, straps, and other equipment to safely move heavy materials · Use proper personal lifting techniques. (Use your legs, not your back) · Never walk directly in back of, or to the side of, heavy equipment without the operator’s knowledge · Never use a piece of equipment unless you are familiar with its operation. This applies to heavy as well as light equipment (for example, chain saws) · Make sure all precautions have been taken before moving pipe sections and other materials to be utilized during this project as they are extremely heavy. Let the equipment, not your body, do the moving 17 · Be sure that no underground or overhead power lines, sewer lines, gas lines, or telephone lines will present a hazard in the work area 7.3 SANITATION Onsite sanitation facilities (e.g., wash stations, etc.) may be provided for use by field personnel assigned to the work if work activities involve the direct handling of contaminated soils and groundwater. 8.0 DECONTAMINATION The process of removing or neutralizing contaminants that have accumulated on personnel and equipment is critical to personnel protection. Decontamination protects workers from hazardous substances that may contaminate and eventually permeate the protective clothing, respiratory equipment, tools, vehicles, and other equipment used on site. Decontamination protects site personnel in the following ways: minimizing the transfer of harmful materials into clean areas; preventing the mixing of incompatible chemicals; and protecting the community by preventing uncontrolled transportation of contaminants from the site. General – Each time an employee enters the Contamination Reduction Zone from the Exclusion Zone, he/she just make a thorough self-examination. Equipment must be removed without exposure to the wearer. Hands and face must be scrubbed before eating or use of tobacco or cosmetic products to avoid accidental ingestion of wastes. Footwear must be changed prior to leaving the Contamination Reduction Zone to avoid “tracking” of contaminants outside the area. Clothing – The Contractor will provide all required protective clothing. Protective clothes will be left in the change facility. No clothing (including boots) is to be worn or carried away from the site. Soiled clothing is to be disposed of as appropriate. Respirators – All required respirators will be provided and maintained by the Contractor and will be cleaned daily. Cleaning and maintenance will be performed in accordance with the appropriate OSHA standard (29 CFR 1910.134). 18 Packaging of Waste Items – All disposable clothing and other contaminated material will be placed in containers for storage on-site. Personnel will make a conscious effort to minimize the volume of contaminated materials. Legible and understandable precautionary labels will be affixed prominently to containers of contaminated scrap, waste, debris, and clothing. Containers will be disposed with other solids in an EPA-approved manner. 8.1 PERSONAL DECONTAMINATION Minimum measures to be undertaken for decontamination are outlined below. These measures are to be followed, as applicable, unless the SSO specifies that a higher level of decontamination is warranted, and accordingly, sets forth upgraded decontamination procedures. MINIMUM MEASURES FOR DECONTAMINATION STATION PROCEDURES 1. Equipment Drop 1. Deposit equipment used on site (tools, sampling devices and containers, monitoring instruments, radios, clipboards, etc.) on plastic drop cloths or in different containers with plastic liners. During hot weather operations, a cool down station may be set up within this area. 2. Outer Garment, Boots and Gloves Wash and Rinse 2. Scrub outer boots, outer gloves and fully encapsulating suit with decon solution or detergent and water. Rinse off using copious amounts of water. 3. Outer Boot and Glove Removal 3. Remove outer boots and gloves. Deposit in container with plastic liner. 4. Tank Change 4. If worker leaves Exclusion Zone to change air tanks, this is the last step in the decontamination procedure. Worker’s air tank is exchanged, new outer gloves and boot covers donned, joints taped, and worker returns to duty. 5. Boot, Gloves and Outer Garment Removal 5. Boots, fully-encapsulated suit, inner gloves removed and deposited in separate containers lined with plastic. 6. SCBA Removal 6. SCBA backpack and facepiece is removed (avoid touching face with fingers). SCBA deposited on plastic sheets. 7. Field Wash 7. Hands and face are thoroughly washed. Shower as soon as possible. 19 EQUIPMENT NEEDED TO PERFORM MINIMUM DECONTAMINATION MEASURES STATION EQUIPMENT 1 A. Various Size Containers B. Plastic Liners C. Plastic Drop Cloths 2 A. Container (20-30 Gallons) B. Decon. Solution or Detergent Water C. Rinse Water D. 2-3 Long-Handled, Soft Bristled Scrub Brushes 3 A. Container (20-30 Gallons) B. Plastic Liners C. Bench or Stools 4 A. Air Tanks or Masks and Cartridges, depending Upon Level. B. Tape C. Boot Covers D. Gloves 5 A. Containers (20-30 Gallons) B. Plastic Liners C. Bench or Stools 6 A. Plastic Sheets B. Basin or Bucket C. Soap and Towels D. Bench or Stools 8.2 EQUIPMENT DECONTAMINATION Any items taken into the Exclusion Zone will be assumed to be contaminated. In general, vehicles, equipment, and materials brought into the Exclusion Zone will remain in the Exclusion Zone until no longer necessary to the project. 20 All contaminated vehicles and equipment will be decontaminated before they are taken off- site. The Contractor will provide and maintain the following facilities for equipment decontamination: - equipment decontamination pad - contaminated water collection system - high-pressure water or steam cleaners - trisodium phosphate detergent - wire brushes and scrapers 9.0 TRAINING 9.1 BASIC TRAINING All employees who will perform work at the site must have completed environmental and safety training as approved and/or provided by CES, the Owner, the Contractor, or if required, by 3rd party General Contractor. 9.2 SITE-SPECIFIC TRAINING Employees assigned to the site may, as needed, be given site-specific training and field experience to include the following topics: - Acute and chronic effects of the toxic chemicals found at the site - Routes of potential exposure and field activities which could result in such exposure - Need for personal protection, types of protection, fit effectiveness and limitations - Medical surveillance program - Work zones established at the site - Prohibited activities in the Exclusion and Contamination Reduction Zones - Engineering controls and safe work practices associated with each employee’s work assignment, including dust control measures - Personal and equipment decontamination procedures - Emergency response procedures - Basic operational safety, emphasizing hazards expected on-site - Drum handling procedures - Spill control - Sampling procedures - Site communication procedures 21 - 10.0 HEALTH MONITORING 10.1 PHYSICAL EXAMINATION The Contractor may require all of its field workers to pass a pre-employment medical examination prior to working at the site. The examination shall include a complete medical and occupational history, and an evaluation from the attending physician as to whether the employee is qualified to work in areas where exposure to chemicals or physical stress is possible, and is physically able to use protective equipment, including respirators. 10.2 HEAT STRESS Subsurface investigation tasks, assignments, projects etc will, or may be conducted during all four season, winter, spring, summer and fall. Accordingly, warm temperatures during these time periods may put extra physical stress on the body. Long periods of exposure to heat may cause illness, particularly if the employee is not accustomed to working in hot areas. Also, heat builds up inside protective clothing, so there is a risk of heat stress even if outside temperatures are moderate. The signs, symptoms and treatment of heat stress are outlined below. All individuals participating in work in the Exclusion Zone and Contamination Reduction Zones should be monitored regularly for heat stress symptoms. Heat Cramps Symptoms: painful muscle spasms Cause: profuse sweating and drinking large amounts of water Treatment: provide liquids with electrolytes (sodium, potassium) like diluted Gatorade 22 Heat Exhaustion Symptoms: weakness, fatigue, dizziness; pale, cool, moist skin; heavy sweating; Headache; nausea; and fainting Cause: reduced blood volume resulting from dehydration from profuse sweating and insufficient replacement of water and salts Treatment: If worker is conscious, rest in cool place; replace water and electrolytes lost in sweat; if unconscious, get medical help immediately. DO NOT give liquids if person is unconscious Heat Stroke Symptoms: very dry, hot skin with red mottled or bluish appearance; confusion; Convulsions; unconsciousness; rapidly rising temperature Cause: body becomes overheated because the worker does not sweat. Can be fatal. Treatment: call for medical help immediately; move person to cool place; remove PPE; use wet towels or water and fan to cool while waiting for help. 10.4 COLD STRESS Subsurface investigation tasks, assignments, projects etc will, or may be conducted during all four season, winter, spring, summer and fall. Accordingly, cold temperatures during these time periods may put extra physical stress on the body. Long periods of exposure to cold may cause illness, particularly if the employee is not accustomed to working in cold areas. Cold stress occurs by driving down the body’s skin temperature and eventually the body temperature (core temperature). The signs, symptoms and treatment of cold stress are outlined below. All individuals participating in work in the Exclusion Zone and Contamination Reduction Zones should be monitored regularly for cold stress symptoms. 23 Hypothermia: Symptoms: shivering, reduced circulation, slow/weak pulse, slowed breathing, lack of coordination, irritability, confusion, sleepy behavior Cause: body heat is lost faster than it can be replaced and normal body temperature drops below 95 degrees F Treatment: move person to warm and dry area, remove wet clothes and replace with dry clothes, layer with blankets, give warm sweetened liquids, if unconscious, get medical help immediately. DO NOT give liquids if person is unconscious Frostbite Symptoms: reddened skin, with development of gray/white patches, numbness, firm or hard parts affected, blisters Cause: freezing of skin and underlying tissues typically affecting extremities, particularly the feet and hands Treatment: move person to warm and dry area, remove wet clothes and replace with dry clothes, layer with blankets, give warm sweetened liquids, if unconscious, get medical help immediately. DO NOT give liquids if person is unconscious. DO NOT rub affected area, DO NOT break blisters, DO NOT try to directly warm the frostbite areas without medical attention Trench Foot Symptoms: redness of skin, swelling, numbness, blisters Cause: prolonged exposure to wet and cold temperatures, constantly wet and cold feet, wet and cold feet lose heat 25x faster than dry feet Treatment: call for medical help immediately; remove the shoes, boots, wet socks, dry the feet 24 10.5 SELF MONITORING While at the site, CES employees and sub-contractors will be required to monitor their own health and that of their co-workers. Visual observations include: - behavioral changes - change in appetite - coordination losses - gum and lip discoloration - increased salivation - pupil dilation - sensation losses - skin rashes - slurred speech Any abnormalities or changes are to be reported to the physician and investigated immediately. Such aspects could be symptoms of toxic exposure and must not be allowed to persist without medical attention. In addition, all accidents and injuries, no matter how small, are to be reported to the SSO and investigated. 11.0 SITE STANDARD OPERATING PROCEDURES 11.1 WORK PRACTICES The need to exercise caution in the performance of specific work tasks is made more acute due to weather conditions, restricted mobility, and reduced peripheral vision caused by the protective gear itself, the need to maintain the integrity of the protective gear, and the increased difficulty in communicating caused by respirators. Work at the site will be conducted according to established procedures and guidelines for the safety and health of all involved. Among the most important of these principles for working at the site are: - In any unknown situation, always assume the worst conditions and plan accordingly - Establish and maintain communication 25 - Minimize contact with excavated or contaminated materials. Plan work work areas, decontamination areas, and procedures to accomplish this. Do not place equipment on drums or on the ground. Do not sit or stand on drums or other materials - Employ disposable items when possible to minimize risks during decontamination and possible cross-contamination during sampling/handling. This will require a common-sense approach to potential risks and costs - Smoking, eating, or drinking after entering the work zone and before decontamination will not be allowed. Oral ingestion of contaminants from your hands are a likely means of introduction of the toxic substances into the body - Avoid heat and other work stresses relating to wearing the protective gear. Work breaks and proper tracking are planned to prevent stress-related accidents or fatigue - Maintain monitoring systems. Conditions can change quickly if sub-surface areas of contamination are penetrated - Be observant of not only your own immediate surroundings but also that of others. It is a team effort to notice and warn of impending dangerous situations. Extra precautions are necessary when working near heavy equipment while utilizing personal protective gear, as vision, hearing, and communication may be restricted by the protective gear - Be aware that chemical contaminants may aggravate or worsen symptoms of other illnesses or intoxication. Avoid use of alcohol and working when ill 11.2 COMMUNICATION PROCEDURES Personnel in the Exclusion Zone shall remain within sight of other project personnel, and should work in conjunction with another individual. Since it is not anticipated that the project area will encompass a large area at any given time, radio communication will not be required. 26 The following standard hand signals will be used in the event that communication is required amongst workers in and/or between the Exclusion Zone and Contamination Reduction Zone. Hand gripping throat Out of air, cannot breathe Grip partner’s wrist, or both Leave area immediately Hands around partner’s waist Rotating hands above the head Need assistance Right hand thumb up OK, I’m all right, I understand Right hand thumb down No, negative 12.0 EMERGENCY PROCEDURES 12.1 GENERAL A comprehensive emergency response plan has been developed to handle all on-site emergencies. A list of site conditions which might require implementation of the plan includes but is not limited to: - Fire or explosion on-site - Serious employee injury - Accumulation of combustible gases or vapors at concentrations greater than background - Oxygen concentration below 19.5% - Unsafe working conditions, such as inclement weather or hazardous material releases - Major release of toxic materials for which appropriate PPE is not being worn by workers 27 12.2 RESPONSIBILITIES The emergency coordinator is the SSO (Greg Hans) or assigned CES representative working onsite; the alternate or back-up is the Environmental Engineer (Chuck Heleine). The emergency coordinator is responsible for: - Assessing the situation and determining whether an emergency exists which requires activating the plan - Directing all efforts in the area, including evacuating personnel and minimizing property loss - Ensuring that outside emergency services such as fire departments, police, ambulance, and hospitals are notified when necessary - Directing the shut-down of site operations when necessary - Notifying regulatory agencies as necessary 28 12.3 EMERGENCY CONTACT LIST Emergency Contact Phone Number Environmental PM: Greg Hans, PMP 617.828.9948 (M) CES Group Engineers, LLP 704.325.5408 (D) Other SSO (if assigned by by Env PM) Carolina Soil Investigations (Drillers) 704.539.5279 (assigned CSI field crew chief) Environmental Sci: Matt Sumner 704.832.9876 (M) CES Group Engineers, LLP Back-up PM Chuck Heleine, PE 704.308.7916 (M) CES Group Engineers, LLP Safety Administrator Taylor Ciucevich 704.325.5406 (D) CES Group Engineers, LLP Police: North Carolina Highway Patrol 911 Glen Alpine Police Department 828.584.2622 Hospital: UNC Health Blue Ridge 828.580.5000 2201 S Sterling Street Morganton, NC 28655 Fire: Morganton Fire Station #70-1 828.432.2520 Doctor: UNC Health Blue Ridge 828.580.5000 Ambulance 911 NCDENR (Asheville Region) 828.296.4500 Directions to the nearest hospital: UNC Health Blue Ridge, 2201 S Sterling Street, Morganton, NC 28655 Refer to Appendix C. 29 12.4 PERSONNEL INJURY IN THE EXCLUSION ZONE When there is an injury in the Exclusion Zone, a continuous horn blast will be sounded as an emergency signal (as applicable). Upon the sounding of the emergency signal, all site personnel shall assemble in the personnel decontamination area. Rescue personnel will enter the Exclusion Zone (if required) to remove the injured person. The SSO, or CES representative, will evaluate the nature of the injury and call for an ambulance (if needed), and the affected person will be decontaminated to the extent possible prior to movement to the Support Zone. The appropriate first aid will be administered. No persons shall re-enter the Exclusion Zone until the cause of the injury or symptom is determined. 12.5 PERSONAL INJURY IN THE SUPPORT ZONE Upon notification of an injury in the Support Zone, the SSO, or CES representative, will assess the nature of the injury. If the injury or absence of the injured person does not affect the performance of site personnel, operations may continue while appropriate first aid and follow-up is initiated. If the injury increases the risk to others, the designated emergency signal (continuous horn blast) shall be sounded, and all site personnel shall move to the decontamination line for further instructions. Activities on-site will stop until the added risk is removed or minimized. 12.6 FIRE OR EXPLOSION Upon notification of a fire or explosion on-site, a continuous horn blast will be sounded, and all site personnel will assemble at the decontamination area. The fire department must be alerted and all personnel moved as soon as possible to a safe distance. 12.7 PERSONAL PROTECTIVE EQUIPMENT FAILURE If any site worker experiences a failure or alteration of protective equipment which may alter the protection factor, that person and his/her work partner must immediately leave the Exclusion Zone. Re-entry shall not be permitted until the equipment has been appropriately repaired or replaced. 12.8 POLLUTANT DISCHARGES/SPILLS In the event of an unauthorized discharge of pollutants or contaminants into the soil, sewers, or ambient air, the person first finding such an incident should immediately notify the Project Manager and/or the SSO. The Project Manager and/or SSO will immediately notify Greg Hans or Matt Sumner or Chuck Heleine and the Local Fire / Emergency Management agency (Burke County Emergency Management at 828.764.9321). APPENDIX A SAFETY DATA SHEETS (BENZENE) SAFETY DATA SHEET SDS ID NO.:0156MAR019 Revision Date 05/14/2015 1. IDENTIFICATION Product Name:Marathon Petroleum Benzene Synonym:Benzene; Cyclohexatriene Product Code:0156MAR019 Chemical Family:Petroleum Hydrocarbon Recommended Use:Solvent. Chemical intermediate. Restrictions on Use:All others. SDS information:1-419-421-3070 Emergency Telephone:1-877-627-5463 2. HAZARD IDENTIFICATION Classification OSHA Regulatory Status This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) Skin corrosion/irritation Category 2 Serious eye damage/eye irritation Category 2A Germ cell mutagenicity Category 1B Carcinogenicity Category 1A Specific target organ toxicity (repeated exposure)Category 1 Aspiration toxicity Category 1 Acute aquatic toxicity Category 2 Hazards Not Otherwise Classified (HNOC) Static accumulating flammable liquid Label elements EMERGENCY OVERVIEW Manufacturer, Importer, or Responsible Party Name and Address: MARATHON PETROLEUM COMPANY LP 539 South Main Street Findlay, OH 45840 Flammable liquids Category 2 Danger HIGHLY FLAMMABLE LIQUID AND VAPOR May accumulate electrostatic charge and ignite or explode SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 1 of 10 May be fatal if swallowed and enters airways Causes skin irritation _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 Precautionary Statements - Prevention Obtain special instructions before use Do not handle until all safety precautions have been read and understood Keep away from heat/sparks/open flames/hot surfaces. - No smoking Keep container tightly closed Ground/bond container and receiving equipment Use explosion-proof electrical/ventilating/lighting/equipment Use only non-sparking tools. Take precautionary measures against static discharge Do not breathe dust/fume/gas/mist/vapors/spray Do not eat, drink or smoke when using this product Wash hands and any possibly exposed skin thoroughly after handling Wear protective gloves/protective clothing/eye protection/face protection Avoid release to the environment Precautionary Statements - Response IF exposed or concerned: Get medical attention IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing If eye irritation persists: Get medical attention IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower If skin irritation occurs: Get medical attention Wash contaminated clothing before reuse IF SWALLOWED: Immediately call a POISON CENTER or doctor Do NOT induce vomiting In case of fire: Use water spray, fog or regular foam for extinction Precautionary Statements - Storage Store in a well-ventilated place. Keep cool Store locked up Precautionary Statements - Disposal Dispose of contents/container at an approved waste disposal plant 3. COMPOSITION/INFORMATION ON INGREDIENTS Benzene is a six carbon aromatic petroleum hydrocarbon. Composition Information: Name CAS Number % Concentration Benzene 71-43-2 99-100 All concentrations are percent by weight unless material is a gas. Gas concentrations are in percent by volume. Causes serious eye irritation May cause genetic defects May cause cancer Causes damage to organs (blood, blood-forming organs, immune system) through prolonged or repeated exposure Toxic to aquatic life Appearance Clear Liquid Physical State Liquid Odor Sweet , Distinct SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 2 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 4. FIRST AID MEASURES First Aid Measures General Advice:In case of accident or if you feel unwell, seek medical advice immediately (show directions for use or safety data sheet if possible). Inhalation:Remove to fresh air. If not breathing, institute rescue breathing. If breathing is difficult, ensure airway is clear, give oxygen and continue to monitor. If heart has stopped, immediately begin cardiopulmonary resuscitation (CPR). Keep affected person warm and at rest. GET IMMEDIATE MEDICAL ATTENTION. Skin Contact:Immediately wash exposed skin with plenty of soap and water while removing contaminated clothing and shoes. May be absorbed through the skin in harmful amounts. Get medical attention if irritation persists. Place contaminated clothing in closed container until cleaned or discarded. If clothing is to be laundered, inform the person performing the operation of contaminant's hazardous properties. Destroy contaminated, non-chemical resistant footwear. Eye Contact:Flush immediately with large amounts of water for at least 15 minutes. Eyelids should be held away from the eyeball to ensure thorough rinsing. Gently remove contacts while flushing. Get medical attention if irritation persists. Ingestion:Do not induce vomiting because of danger of aspirating liquid into lungs, causing serious damage and chemical pneumonitis. If spontaneous vomiting occurs, keep head below hips, or if patient is lying down, turn body and head to side to prevent aspiration and monitor for breathing difficulty. Never give anything by mouth to an unconscious person. Keep affected person warm and at rest. GET IMMEDIATE MEDICAL ATTENTION. Most important signs and symptoms, both short-term and delayed with overexposure Adverse Effects:Overexposure to vapors may cause eye, skin and respiratory irritation. Headache, drowsiness, dizziness, loss of coordination, disorientation and fatigue. Prolonged and repeated contact may cause defatting and drying of the skin and may lead to irritation and/or dermatitis. Prolonged or repeated exposure may cause adverse effects on blood, blood-forming organs, and immune system. Indication of any immediate medical attention and special treatment needed Notes To Physician:INHALATION: This material (or a component) sensitizes the myocardium to the effects of sympathomimetic amines. Epinephrine and other sympathomimetic drugs may initiate cardiac arrhythmias in individuals exposed to this material. Administration of sympathomimetic drugs should be avoided. INGESTION: This material represents a significant aspiration and chemical pneumonitis hazard. Induction of emesis is not recommended. 5. FIRE-FIGHTING MEASURES Suitable extinguishing media For small fires, Class B fire extinguishing media such as CO2, dry chemical, foam (AFFF/ATC) or water spray can be used. For large fires, water spray, fog or foam (AFFF/ATC) can be used. Firefighting should be attempted only by those who are adequately trained and equipped with proper protective equipment. Unsuitable extinguishing media Do not use straight water streams to avoid spreading fire. SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 3 of 10 Specific hazards arising from the chemical This product has been determined to be a highly flammable liquid per the OSHA Hazard Communication Standard and should be handled accordingly. Vapors may travel along the ground or be moved by ventilation and ignited by many sources such as pilot _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 lights, sparks, electric motors, static discharge, or other ignition sources at locations distant from material handling. Flashback can occur along vapor trail. For additional fire related information, see NFPA 30 or the Emergency Response Guidebook 130. Hazardous combustion products Smoke, carbon monoxide, and other products of incomplete combustion. Explosion data Sensitivity to Mechanical Impact No. Sensitivity to Static Discharge Yes. Special protective equipment and precautions for firefighters Firefighters should wear full protective clothing and positive-pressure self-contained breathing apparatus (SCBA) with a full face-piece, as appropriate. Avoid using straight water streams. Water may be ineffective in extinguishing low flash point fires, but can be used to cool exposed surfaces. Avoid excessive water spray application. Water spray and foam (AFFF/ATC) must be applied carefully to avoid frothing and from as far a distance as possible. Keep run-off water out of sewers and water sources. Additional firefighting tactics FIRES INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after the fire is out. Do not direct water at source of leak or safety devices; icing may occur. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles: if this is impossible, withdraw from area and let fire burn. EVACUATION: Consider initial downwind evacuation for at least 1000 feet. If tank, rail car or tank truck is involved in a fire, ISOLATE for 5280 feet (1 mile) in all directions; also, consider initial evacuation of 5280 feet (1 mile) in all directions. 6. ACCIDENTAL RELEASE MEASURES Personal precautions:Keep public away. Isolate and evacuate area. Shut off source if safe to do so. Eliminate all ignition sources. Protective equipment:Use personal protection measures as recommended in Section 8. Emergency procedures:Advise authorities and National Response Center (800-424-8802) if the product has entered a water course or sewer. Notify local health and pollution control agencies, if appropriate. Environmental precautions:Avoid release to the environment. Avoid subsoil penetration. Methods and materials for containment: Contain liquid with sand or soil. Methods and materials for cleaning up: Use suitable absorbent materials such as vermiculite, sand, or clay to clean up residual liquids. Recover and return free product to proper containers. When recovering free liquids ensure all equipment is grounded and bonded. Use only non-sparking tools. 7. HANDLING AND STORAGE Safe Handling Precautions:NEVER SIPHON THIS PRODUCT BY MOUTH. Static accumulating flammable liquid. Use appropriate grounding and bonding practices. Bonding and grounding may be insufficient to eliminate the hazard from static electricity. Do not expose to heat, open flames, strong oxidizers or other sources of ignition. Use only non-sparking tools. Do not cut, drill, grind or weld on empty containers since explosive residues may remain. Avoid contact with skin, eyes and clothing. Avoid breathing vapors or mists. Use only with adequate ventilation. Use personal protection measures as recommended in Section 8. Exercise good personal hygiene including removal of soiled clothing and prompt washing with soap and water. Comply with all applicable EPA, OSHA, NFPA and consistent state and local requirements. NFPA Health 2 Flammability 3 Instability 0 Special Hazard - SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 4 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 Hydrocarbons are basically non-conductors of electricity and can become electrostatically charged during mixing, filtering, pumping at high flow rates or loading and transfer operations. If this charge reaches a sufficiently high level, sparks can form that may ignite the vapors of flammable liquids. Sudden release of hot organic chemical vapors or mists from process equipment operating under elevated temperature and pressure, or sudden ingress of air into vacuum equipment may result in ignition of vapors or mists without the presence of obvious ignition sources. Nozzle spouts must be kept in contact with the containers or tank during the entire filling operation. Storage Conditions:Store in properly closed containers that are appropriately labeled and in a cool, well-ventilated area. Incompatible Materials Strong oxidizing agents. 8. EXPOSURE CONTROLS/PERSONAL PROTECTION Name ACGIH TLV OSHA PELS:OSHA - Vacated PELs NIOSH IDLH Benzene 71-43-2 0.5 ppm TWA 2.5 ppm STEL Skin - potential significant contribution to overallexposure by the cutaneous route TWA: 10 ppm (applies to industry segments exempt from the benzene standard)TWA: 1 ppm STEL: 5 ppm (see 29 CFR 1910.1028) 25 ppm Ceiling 1 ppm TWA 5 ppm STEL 500 ppm Notes:The manufacturer has voluntarily elected to provide exposure limits contained in OSHA's 1989 air contaminants standard in its SDSs, even though certain of those exposure limits were vacated in 1992. Engineering measures:Local or general exhaust required in an enclosed area or when there is inadequate ventilation. Use mechanical ventilation equipment that is explosion-proof. Personal protective equipment Eye protection:Use goggles or face-shield if the potential for splashing exists. Skin and body protection:For non-exposure jobs or where exposure is expected to be less than 15 minutes, neoprene gloves can be used to prevent skin contact. For all exposure jobs expected to be greater than 15 minutes, Viton® gloves should be used to prevent skin contact. Glove suitability is based on workplace conditions and usage. Contact the glove manufacturer for specific advice on glove selection and breakthrough times. Depending upon the conditions of use and specific work situations, additional protective equipment and/or clothing may be required to control exposures. Respiratory protection:Approved organic vapor chemical cartridge or supplied air respirators should be worn for exposures to any components exceeding the established exposure limits. Observe respirator assigned protection factors (APFs) criteria cited in federal OSHA 29 CFR 1910.134. Self-contained breathing apparatus should be used for fire fighting. Hygiene measures:Handle in accordance with good industrial hygiene and safety practice. Avoid contact with skin, eyes and clothing. 9. PHYSICAL AND CHEMICAL PROPERTIES Information on basic physical and chemical properties Physical State Liquid Appearance Clear Liquid Color Colorless Odor Sweet , Distinct Odor Threshold 12 ppmv Property Values (Method) SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 5 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 Melting Point / Freezing Point 5.5 °C / 42 °F Initial Boiling Point / Boiling Range 80 °C / 176 °F Flash Point -11 °C / 12 °F Evaporation Rate 5.1 (Butyl acetate = 1) Flammability (solid, gas)Not applicable. Flammability Limit in Air (%): Upper Flammability Limit:7.1 Lower Flammability Limit:1.4 Explosion limits:No data available. Vapor Pressure 3.21 psia @ 100°F Vapor Density 2.7 (Air = 1) Specific Gravity / Relative Density 0.883 Water Solubility No data available. Solubility in other solvents No data available. Partition Coefficient No data available. Decomposition temperature No data available. pH:Not applicable. Autoignition Temperature 562 °C / 1044 °F Kinematic Viscosity 0.593 cSt @ 100°F Dynamic Viscosity No data available. Explosive Properties No data available. VOC Content (%)No data available. Density No data available. Bulk Density Not applicable. 10. STABILITY AND REACTIVITY Chemical stability The material is stable at 70°F (21°C ), 760 mmHg pressure. Possibility of hazardous reactions None under normal processing. Hazardous polymerization Will not occur. Conditions to avoid Sources of heat or ignition. Incompatible Materials Strong oxidizing agents. Hazardous decomposition products None known under normal conditions of use. 11. TOXICOLOGICAL INFORMATION Potential short-term adverse effects from overexposures Inhalation Overexposure may cause respiratory tract irritation and central nervous system depression. Breathing high concentrations of this material, for example, in a confined space or by intentional abuse, can cause irregular heartbeats which can cause death. Eye contact Irritating to eyes. Skin contact Irritating to skin. May be absorbed through the skin in harmful amounts. Effects may become more serious with repeated or prolonged contact. Ingestion May be fatal if swallowed or vomited and enters airways. May cause irritation of the mouth, throat and gastrointestinal tract. May cause central nervous system depression or effects. Acute toxicological data Name Oral LD50 Dermal LD50 Inhalation LC50 Benzene > 2000 mg/kg (Rat)> 5000 mg/kg (Rabbit)> 20 mg/l (Rat) 4 h Reactivity The product is non-reactive under normal conditions. SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 6 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 71-43-2 Delayed and immediate effects as well as chronic effects from short and long-term exposure BENZENE: Studies of workers exposed to benzene show clear evidence that overexposure can cause cancer and other diseases of the blood forming organs including Acute Myelogenous Leukemia (AML), and Aplastic Anemia (AA), an often fatal disease. Some studies suggest overexposure to benzene may also be associated with Myelodysplastic Syndrome (MDS). Findings from a case control study of workers exposed to benzene was reported during the 2009 Benzene Symposium in Munich included an increase in Acute Myeloid Leukemias and Non-Hodgkins Lymphoid Neoplasms (NHLN) of the subtype follicular lymphoma (FL) in some occupational categories. Some studies of workers exposed to benzene have shown an association with increased rates of chromosome aberrations in circulating lymphocytes. One study of women workers exposed to benzene suggested a weak association with irregular menstruation. However, other studies of workers exposed to benzene have not demonstrated clear evidence of an effect on fertility or reproductive outcome in humans. Benzene can cross the placenta and affect the developing fetus. Cases of AA have been reported in the offspring of persons severely overexposed to benzene. Studies in laboratory animals indicate that prolonged, repeated exposure to high levels of benzene vapor can cause bone marrow suppression and cancer in multiple organ systems. Studies in laboratory animals show evidence of adverse effects on male reproductive organs following high levels of exposure but no significant effects on reproduction have been observed. Embryotoxicity has been reported in studies of laboratory animals but effects were limited to reduced fetal weight and minor skeletal variations. Benzene has been classified as a proven human carcinogen by OSHA and a Group 1 (Carcinogenic to Humans) material by IARC. The current proposed IARC classification for benzene is summarized as follows: Sufficient evidence for Acute Myeloid Leukemia; limited evidence for Acute Lymphatic Leukemia, Chronic Lymphatic Leukemia, Non-Hodgkin Lymphoma, and Multiple Myeloma. Adverse effects related to the physical, chemical and toxicological characteristics Signs and Symptoms Overexposure to vapors may cause eye, skin and respiratory irritation. Inhalation of high vapor concentrations may cause symptoms like headache, dizziness, tiredness, nausea and vomiting Repeated or prolonged skin contact may cause drying, reddening, itching and cracking. Sensitization Not expected to be a skin or respiratory sensitizer. Mutagenic effects May cause genetic defects. Carcinogenicity Cancer designations are listed in the table below Name ACGIH (Class) IARC (Class) NTP OSHA Benzene 71-43-2 Confirmed human carcinogen (A1) Carcinogenic to humans (1)Known to be human carcinogen Known carcinogen Reproductive toxicity None known. Specific Target Organ Toxicity (STOT) - single exposure Not classified. Specific Target Organ Toxicity (STOT) - repeated exposure Blood. Blood-forming organs. Immune system. Aspiration hazard May be fatal if swallowed or vomited and enters airways. 12. ECOLOGICAL INFORMATION Ecotoxicity This product should be considered toxic to aquatic organisms. Name Algae/aquatic plants Fish Toxicity to Crustacea SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 7 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 Microorganisms Benzene 71-43-2 72-hr EC50 = 29 mg/l Algae 96-hr LC50 = 5.3 mg/l Rainbow trout (flow-through) -48-hr EC50 = 8.76-15.6 mg/l Daphnia magna (Static) Persistence and degradability Readily biodegradable in the environment. Bioaccumulation Not expected to bioaccumulate in aquatic organisms. Mobility in soil May partition into air, soil and water. Other adverse effects No information available. 13. DISPOSAL CONSIDERATIONS Description of Waste Residues This material may be a flammable liquid waste. Safe Handling of Wastes Handle in accordance with applicable local, state, and federal regulations. Use personal protection measures as required. Use appropriate grounding and bonding practices. Use only non-sparking tools. Do not expose to heat, open flames, strong oxidizers or other sources of ignition. No smoking. Disposal of Wastes / Methods of Disposal The user is responsible for determining if any discarded material is a hazardous waste (40 CFR 262.11). Dispose of in accordance with federal, state and local regulations. Methods of Contaminated Packaging DisposalEmpty containers should be completely drained and then discarded or recycled, if possible. Do not cut, drill, grind or weld on empty containers since explosive residues may be present. Dispose of in accordance with federal, state and local regulations. 14. TRANSPORT INFORMATION DOT (49 CFR 172.101): UN Proper Shipping Name:Benzene UN/Identification No:UN 1114 Class:3 Packing Group:II TDG (Canada): UN Proper Shipping Name:Benzene UN/Identification No:UN 1114 Transport Hazard Class(es):3 Packing Group:II 15. REGULATORY INFORMATION US Federal Regulatory Information: US TSCA Chemical Inventory Section 8(b):This product and/or its components are listed on the TSCA Chemical Inventory. EPA Superfund Amendment & Reauthorization Act (SARA): SARA Section 302:This product does not contain any component(s) included on EPA's Extremely Hazardous Substance (EHS) List. Name CERCLA/SARA - Section 302 Extremely Hazardous Substances and TPQs Benzene NA SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 8 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 SARA Section 304:This product may contain component(s) identified either as an EHS or a CERCLA Hazardous substance which in case of a spill or release may be subject to SARA reporting requirements: Name Hazardous Substances RQs Benzene 10 SARA Section 311/312:The following EPA hazard categories apply to this product: Acute Health Hazard Chronic Health Hazard Fire Hazard SARA Section 313:This product may contain component(s), which if in exceedance of the de minimus threshold, may be subject to the reporting requirements of SARA Title III Section 313 Toxic Release Reporting (Form R). Name CERCLA/SARA 313 Emission reporting: Benzene 0.1 % de minimis concentration State and Community Right-To-Know Regulations: The following component(s) of this material are identified on the regulatory lists below: Benzene Louisiana Right-To-Know:Not Listed California Proposition 65:Carcinogen, initial date 2/27/87 Developmental toxicity, initial date 12/26/97 Male reproductive toxicity, initial date 12/26/97 New Jersey Right-To-Know:SN 0197 Pennsylvania Right-To-Know:Environmental hazard; Special hazardous substance Massachusetts Right-To Know:Carcinogen; Extraordinarily hazardous Florida Substance List:Not Listed Rhode Island Right-To-Know:Toxic (skin); Flammable (skin); Carcinogen (skin) Michigan Critical Materials Register List:100 lb Annual usage threshold Massachusetts Extraordinarily Hazardous Substances:Carcinogen; Extraordinarily hazardous California - Regulated Carcinogens:Not Listed Pennsylvania RTK - Special Hazardous Substances: Present New Jersey - Special Hazardous Substances:Carcinogen; Flammable - third degree; Mutagen New Jersey - Environmental Hazardous Substances List: SN 0197 TPQ: 500 lb Illinois - Toxic Air Contaminants:Present New York - Reporting of Releases Part 597 - List of Hazardous Substances: 10 lb RQ (air); 1 lb RQ (land/water) Canada DSL/NDSL Inventory:This product and/or its components are listed either on the Domestic Substances List (DSL) or are exempt. Canadian Regulatory Information:This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the SDS contains all of the information required by those regulations. Name Canada - WHMIS: Classifications of Substances: Canada - WHMIS: Ingredient Disclosure: Benzene B2,D2A,D2B 0.1% Note:Not applicable. SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 9 of 10 16. OTHER INFORMATION _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 Prepared By Toxicology and Product Safety Revision Notes Revision Date 05/14/2015 Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information is intended as guidance for safe handling, use, processing, storage, transportation, accidental release, clean-up and disposal and is not considered a warranty or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text. SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 10 of 10 APPENDIX B EMERGENCY PHONE NUMBERS Emergency Contact Phone Number Environmental PM: Greg Hans, PMP 617.828.9948 (M) CES Group Engineers, LLP 704.325.5408 (D) Other SSO (if assigned by by Env PM) Carolina Soil Investigations (Drillers) 704.539.5279 (assigned CSI field crew chief) Environmental Sci: Matt Sumner 704.832.9876 (M) CES Group Engineers, LLP Back-up PM Chuck Heleine, PE 704.308.7916 (M) CES Group Engineers, LLP Safety Administrator Taylor Ciucevich 704.325.5406 (D) CES Group Engineers, LLP Police: North Carolina Highway Patrol 911 Glen Alpine Police Department 828.584.2622 Hospital: UNC Health Blue Ridge 828.580.5000 2201 S Sterling Street Morganton, NC 28655 Fire: Morganton Fire Station #70-1 828.432.2520 Doctor: UNC Health Blue Ridge 828.580.5000 Ambulance 911 NCDENR (Asheville Region) 828.296.4500 Directions to the nearest hospital: UNC Health Blue Ridge, 2201 S Sterling Street, Morganton, NC 28655 Refer to Appendix C. APPENDIX C ROUTE TO HOSPITAL Starting at approximate address of Romarco Road, Morganton, NC End at UNC Health Blue Ridge, 2201 S Sterling Street, Morganton, NC 28655 Site/Location Contract Number N042023 Customer NCDEQ STF (Scott Ryals)Prepared By Competent Person Greg Hans Date Prepared 10/8/2023 Phone Number 617-828-9948 PPE Level Level D Step Step Step Step Closest Hospital/ER UNC Health Blue Ridge Hospital Address 2201 S Sterling St, Morganton, NC 28655 Hospital Phone #828-580-5000 Local Police Number 828-438-5500 (Burke County Sheriff's Office) 10/8/2023 Signature Date 3525 Whitehall Park Drive, Suite 150, Charlotte, NC 28273 Sequence of Basic Job Steps Potential Incidents or Hazards Recommended Procedures to Eliminate Potential Hazards/Incidents 5 Collecting GW Samples Exposure to Contaminants Wear proper PPE (change gloves to avoid cross contamination). Monitor ambient air for petroleum vapors. Matt Sumner Printed Name CALL 911 FOREMERGENCY 2 Parking Vehicular accidents / damage to vehicles Park in areas off of roadway, at least 10 feet, use orange cones and flashers to identify parked location. Discuss parking areas with current site owners/managers. 3 Site Recon / Surveys Slips, Trips, Falls / Vehicles Wear proper PPE (including visibility vest), maintain safe distance from travel lanes at all times, do not turn back to oncoming traffic. Avoid crossing busy streets/intersections. Check surface areas prior to accessing for S, T, F hazards. Job Hazard Analysis & Health/Safety Issues Sequence of Basic Job Steps Potential Incidents or Hazards Recommended Procedures to Eliminate Potential Hazards/Incidents Driving / Site Access Vehicular accidents / traffic violations / accidents with large equipment Practice defensive driving techniques, use turn signals, stay in lanes, obey speed limits / while onsite, pay close attention to large pieces of equipment in facility and make eye contact with operators before proceeding / always have strobe light flashers on. 1 Silver Creek Airport - 130 Silver Creek Airport Road, Morganton, North Carolina Matt Sumner (704-832-9876) Sequence of Basic Job Steps Potential Incidents or Hazards Recommended Procedures to Eliminate Potential Hazards/Incidents Sequence of Basic Job Steps Potential Incidents or Hazards APPENDIX C GROUNDWATER LABORATORY REPORTS AND CHAIN-OF-CUSTODY RECORDS Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis. 10/17/2023 CES Group Greg Hans 3525 Whitehall Park Dr. Suite 150 Charlotte, NC, 28273 Ref: Analytical Testing Lab Report Number: 23-284-0002 Client Project Description: Silver Creek Airport Dear Greg Hans: Waypoint Analytical, LLC (Charlotte) received sample(s) on 10/11/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 40 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202437735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202499012State ProgramSouth Carolina 12/31/202399012State ProgramSouth Carolina Page 1 of 1 00016/23-284-0002 Page 2 of 40 Report Number: Sample Summary Table Client Project Description: 23-284-0002 Silver Creek Airport Lab No Client Sample ID Matrix Date Collected Date Received 10/10/2023 13:30Aqueous 97407 MW-1 10/11/2023 09:28 10/10/2023 13:50Aqueous 97408 MW-2 10/11/2023 09:28 10/10/2023 14:00Aqueous 97409 Field Blank 10/11/2023 09:28 Page 3 of 40 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-284-0002 Report Limit Project:Silver Creek Airport V 97407MW-1 J1.95 10/14/2023 06:366200BMethyl Ethyl Ketone (MEK)µg/L 0.710 V 97408MW-2 J2.01 10/14/2023 07:006200BMethyl Ethyl Ketone (MEK)µg/L 0.710 V 97409Field Blank J2.18 10/14/2023 03:466200BMethyl Ethyl Ketone (MEK)µg/L 0.710 Page 4 of 40 Client: CES Group CASE NARRATIVE Project: Silver Creek Airport Lab Report Number: 23-284-0002 Date: 10/17/2023 625.1 - Base/Neutrals and Acids by GC/MS Method 625.1 Analyte: Benzidine QC Batch No: V38982/V38943 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Hexachlorocyclopentadiene QC Batch No: V38982/V38943 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Page 5 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-1 97407 Matrix: 10/10/2023 13:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 10/14/23 06:36 V39113MSA <0.180 µg/L 0.180 0.500Benzene 1 10/14/23 06:36 V39113MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 10/14/23 06:36 V39113MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 10/14/23 06:36 V39113MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 10/14/23 06:36 V39113MSA <1.50 µg/L 1.50 5.00Bromoform 1 10/14/23 06:36 V39113MSA <0.280 µg/L 0.280 1.00Bromomethane 1 10/14/23 06:36 V39113MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 10/14/23 06:36 V39113MSA <0.200 µg/L 0.200 0.500 sec-Butyl benzene 1 10/14/23 06:36 V39113MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 10/14/23 06:36 V39113MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 10/14/23 06:36 V39113MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 10/14/23 06:36 V39113MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 10/14/23 06:36 V39113MSA <0.430 µg/L 0.430 1.00Chloroethane 1 10/14/23 06:36 V39113MSA <0.220 µg/L 0.220 0.500Chloroform 1 10/14/23 06:36 V39113MSA <0.220 µg/L 0.220 0.500 Chloromethane 1 10/14/23 06:36 V39113MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 10/14/23 06:36 V39113MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 10/14/23 06:36 V39113MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 10/14/23 06:36 V39113MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 10/14/23 06:36 V39113MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 10/14/23 06:36 V39113MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 10/14/23 06:36 V39113MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 6 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-1 97407 Matrix: 10/10/2023 13:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 10/14/23 06:36 V39113MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 10/14/23 06:36 V39113MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 10/14/23 06:36 V39113MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 10/14/23 06:36 V39113MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 10/14/23 06:36 V39113MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 10/14/23 06:36 V39113MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 10/14/23 06:36 V39113MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 10/14/23 06:36 V39113MSA <0.180 µg/L 0.180 0.500 trans-1,2-Dichloroethene 1 10/14/23 06:36 V39113MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 10/14/23 06:36 V39113MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 10/14/23 06:36 V39113MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 10/14/23 06:36 V39113MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 10/14/23 06:36 V39113MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 10/14/23 06:36 V39113MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 10/14/23 06:36 V39113MSA <42.0 µg/L 42.0 200 Ethanol 1 10/14/23 06:36 V39113MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 10/14/23 06:36 V39113MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 10/14/23 06:36 V39113MSA <0.380 µg/L 0.380 1.002-Hexanone 1 10/14/23 06:36 V39113MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 10/14/23 06:36 V39113MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 10/14/23 06:36 V39113MSA 1.95 J µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 10/14/23 06:36 V39113MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 7 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-1 97407 Matrix: 10/10/2023 13:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 10/14/23 06:36 V39113MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 10/14/23 06:36 V39113MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 10/14/23 06:36 V39113MSA <0.470 µg/L 0.470 1.00Naphthalene 1 10/14/23 06:36 V39113MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 10/14/23 06:36 V39113MSA <0.220 µg/L 0.220 0.500Styrene 1 10/14/23 06:36 V39113MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 10/14/23 06:36 V39113MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 10/14/23 06:36 V39113MSA <0.220 µg/L 0.220 0.500 Tetrachloroethene 1 10/14/23 06:36 V39113MSA <0.220 µg/L 0.220 0.500Toluene 1 10/14/23 06:36 V39113MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 10/14/23 06:36 V39113MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 10/14/23 06:36 V39113MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 10/14/23 06:36 V39113MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 10/14/23 06:36 V39113MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 10/14/23 06:36 V39113MSA <0.180 µg/L 0.180 0.500 Trichlorofluoromethane 1 10/14/23 06:36 V39113MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 10/14/23 06:36 V39113MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 10/14/23 06:36 V39113MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 10/14/23 06:36 V39113MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 10/14/23 06:36 V39113MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 10/14/23 06:36 V39113MSA <0.210 µg/L 0.210 0.500o-Xylene 1 10/14/23 06:36 V39113MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 8 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-1 97407 Matrix: 10/10/2023 13:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 10/14/23 06:36 V39113MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 10/14/23 06:36 V39113 Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%10/14/23 06:361 MSA V39113 Surrogate: Dibromofluoromethane 96.4 Limits: 70-130%10/14/23 06:361 MSA V39113 Surrogate: 1,2-Dichloroethane - d4 98.4 Limits: 70-130%10/14/23 06:361 MSA V39113 Surrogate: Toluene-d8 100 Limits: 70-130%10/14/23 06:361 MSA V39113 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <0.302 µg/L 0.302 2.00Acenaphthene 1 10/12/23 20:49 V38982AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 10/12/23 20:49 V38982AMP <0.836 µg/L 0.836 2.00Anthracene 1 10/12/23 20:49 V38982AMP <1.32 µg/L 1.32 10.0 Benzidine 1 10/12/23 20:49 V38982AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 10/12/23 20:49 V38982AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 10/12/23 20:49 V38982AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 10/12/23 20:49 V38982AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 10/12/23 20:49 V38982AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 10/12/23 20:49 V38982AMP <1.10 µg/L 1.10 10.0Benzoic Acid 1 10/12/23 20:49 V38982AMP <0.684 µg/L 0.684 5.00 Benzyl alcohol 1 10/12/23 20:49 V38982AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 10/12/23 20:49 V38982AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 9 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-1 97407 Matrix: 10/10/2023 13:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 10/12/23 20:49 V38982AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 10/12/23 20:49 V38982AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 10/12/23 20:49 V38982AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 10/12/23 20:49 V38982AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 10/12/23 20:49 V38982AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 10/12/23 20:49 V38982AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 10/12/23 20:49 V38982AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 10/12/23 20:49 V38982AMP <1.71 µg/L 1.71 5.00 4-Chlorophenyl phenyl ether 1 10/12/23 20:49 V38982AMP <0.405 µg/L 0.405 2.00Chrysene 1 10/12/23 20:49 V38982AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 10/12/23 20:49 V38982AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 10/12/23 20:49 V38982AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 10/12/23 20:49 V38982AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 10/12/23 20:49 V38982AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 10/12/23 20:49 V38982AMP <1.89 µg/L 1.89 5.00 3,3'-Dichlorobenzidine 1 10/12/23 20:49 V38982AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 10/12/23 20:49 V38982AMP <0.745 µg/L 0.745 5.00Diethyl phthalate 1 10/12/23 20:49 V38982AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 10/12/23 20:49 V38982AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 10/12/23 20:49 V38982AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 10/12/23 20:49 V38982AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 10/12/23 20:49 V38982AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 10 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-1 97407 Matrix: 10/10/2023 13:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 10/12/23 20:49 V38982AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 10/12/23 20:49 V38982AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 10/12/23 20:49 V38982AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 10/12/23 20:49 V38982AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 10/12/23 20:49 V38982AMP <0.807 µg/L 0.807 2.00Fluorene 1 10/12/23 20:49 V38982AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 10/12/23 20:49 V38982AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 10/12/23 20:49 V38982AMP <2.05 µg/L 2.05 5.00 Hexachlorocyclopentadiene 1 10/12/23 20:49 V38982AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 10/12/23 20:49 V38982AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 10/12/23 20:49 V38982AMP <0.444 µg/L 0.444 5.00Isophorone 1 10/12/23 20:49 V38982AMP <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 10/12/23 20:49 V38982AMP <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 10/12/23 20:49 V38982AMP <0.728 µg/L 0.728 2.00Naphthalene 1 10/12/23 20:49 V38982AMP <0.905 µg/L 0.905 5.00 Nitrobenzene 1 10/12/23 20:49 V38982AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 10/12/23 20:49 V38982AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 10/12/23 20:49 V38982AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 10/12/23 20:49 V38982AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 10/12/23 20:49 V38982AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 10/12/23 20:49 V38982AMP <0.428 µg/L 0.428 2.00Phenanthrene 1 10/12/23 20:49 V38982AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 11 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-1 97407 Matrix: 10/10/2023 13:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <0.651 µg/L 0.651 5.00Phenol 1 10/12/23 20:49 V38982AMP <0.434 µg/L 0.434 2.00Pyrene 1 10/12/23 20:49 V38982AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 10/12/23 20:49 V38982AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 10/12/23 20:49 V38982AMP 625.1Surrogate: Phenol-d5 22.7 Limits: 10-63%10/12/23 20:491 AMP Surrogate: 2-Fluorobiphenyl 71.0 Limits: 49-118%10/12/23 20:491 AMP V38982 Surrogate: 2-Fluorophenol 33.4 Limits: 22-84%10/12/23 20:491 AMP V38982 Surrogate: Nitrobenzene-d5 61.6 Limits: 43-123%10/12/23 20:491 AMP V38982 Surrogate: 4-Terphenyl-d14 84.6 Limits: 49-151%10/12/23 20:491 AMP V38982 Surrogate: 2,4,6-Tribromophenol 93.0 Limits: 31-144%10/12/23 20:491 AMP V38982 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 12 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-2 97408 Matrix: 10/10/2023 13:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 10/14/23 07:00 V39113MSA <0.180 µg/L 0.180 0.500Benzene 1 10/14/23 07:00 V39113MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 10/14/23 07:00 V39113MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 10/14/23 07:00 V39113MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 10/14/23 07:00 V39113MSA <1.50 µg/L 1.50 5.00Bromoform 1 10/14/23 07:00 V39113MSA <0.280 µg/L 0.280 1.00Bromomethane 1 10/14/23 07:00 V39113MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 10/14/23 07:00 V39113MSA <0.200 µg/L 0.200 0.500 sec-Butyl benzene 1 10/14/23 07:00 V39113MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 10/14/23 07:00 V39113MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 10/14/23 07:00 V39113MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 10/14/23 07:00 V39113MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 10/14/23 07:00 V39113MSA <0.430 µg/L 0.430 1.00Chloroethane 1 10/14/23 07:00 V39113MSA <0.220 µg/L 0.220 0.500Chloroform 1 10/14/23 07:00 V39113MSA <0.220 µg/L 0.220 0.500 Chloromethane 1 10/14/23 07:00 V39113MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 10/14/23 07:00 V39113MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 10/14/23 07:00 V39113MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 10/14/23 07:00 V39113MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 10/14/23 07:00 V39113MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 10/14/23 07:00 V39113MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 10/14/23 07:00 V39113MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 13 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-2 97408 Matrix: 10/10/2023 13:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 10/14/23 07:00 V39113MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 10/14/23 07:00 V39113MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 10/14/23 07:00 V39113MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 10/14/23 07:00 V39113MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 10/14/23 07:00 V39113MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 10/14/23 07:00 V39113MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 10/14/23 07:00 V39113MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 10/14/23 07:00 V39113MSA <0.180 µg/L 0.180 0.500 trans-1,2-Dichloroethene 1 10/14/23 07:00 V39113MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 10/14/23 07:00 V39113MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 10/14/23 07:00 V39113MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 10/14/23 07:00 V39113MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 10/14/23 07:00 V39113MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 10/14/23 07:00 V39113MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 10/14/23 07:00 V39113MSA <42.0 µg/L 42.0 200 Ethanol 1 10/14/23 07:00 V39113MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 10/14/23 07:00 V39113MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 10/14/23 07:00 V39113MSA <0.380 µg/L 0.380 1.002-Hexanone 1 10/14/23 07:00 V39113MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 10/14/23 07:00 V39113MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 10/14/23 07:00 V39113MSA 2.01 J µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 10/14/23 07:00 V39113MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 14 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-2 97408 Matrix: 10/10/2023 13:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 10/14/23 07:00 V39113MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 10/14/23 07:00 V39113MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 10/14/23 07:00 V39113MSA <0.470 µg/L 0.470 1.00Naphthalene 1 10/14/23 07:00 V39113MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 10/14/23 07:00 V39113MSA <0.220 µg/L 0.220 0.500Styrene 1 10/14/23 07:00 V39113MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 10/14/23 07:00 V39113MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 10/14/23 07:00 V39113MSA <0.220 µg/L 0.220 0.500 Tetrachloroethene 1 10/14/23 07:00 V39113MSA <0.220 µg/L 0.220 0.500Toluene 1 10/14/23 07:00 V39113MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 10/14/23 07:00 V39113MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 10/14/23 07:00 V39113MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 10/14/23 07:00 V39113MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 10/14/23 07:00 V39113MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 10/14/23 07:00 V39113MSA <0.180 µg/L 0.180 0.500 Trichlorofluoromethane 1 10/14/23 07:00 V39113MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 10/14/23 07:00 V39113MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 10/14/23 07:00 V39113MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 10/14/23 07:00 V39113MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 10/14/23 07:00 V39113MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 10/14/23 07:00 V39113MSA <0.210 µg/L 0.210 0.500o-Xylene 1 10/14/23 07:00 V39113MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 15 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-2 97408 Matrix: 10/10/2023 13:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 10/14/23 07:00 V39113MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 10/14/23 07:00 V39113 Surrogate: 4-Bromofluorobenzene 99.2 Limits: 70-130%10/14/23 07:001 MSA V39113 Surrogate: Dibromofluoromethane 97.8 Limits: 70-130%10/14/23 07:001 MSA V39113 Surrogate: 1,2-Dichloroethane - d4 98.2 Limits: 70-130%10/14/23 07:001 MSA V39113 Surrogate: Toluene-d8 100 Limits: 70-130%10/14/23 07:001 MSA V39113 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <0.302 µg/L 0.302 2.00Acenaphthene 1 10/12/23 21:12 V38982AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 10/12/23 21:12 V38982AMP <0.836 µg/L 0.836 2.00Anthracene 1 10/12/23 21:12 V38982AMP <1.32 µg/L 1.32 10.0 Benzidine 1 10/12/23 21:12 V38982AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 10/12/23 21:12 V38982AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 10/12/23 21:12 V38982AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 10/12/23 21:12 V38982AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 10/12/23 21:12 V38982AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 10/12/23 21:12 V38982AMP <1.10 µg/L 1.10 10.0Benzoic Acid 1 10/12/23 21:12 V38982AMP <0.684 µg/L 0.684 5.00 Benzyl alcohol 1 10/12/23 21:12 V38982AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 10/12/23 21:12 V38982AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 16 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-2 97408 Matrix: 10/10/2023 13:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 10/12/23 21:12 V38982AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 10/12/23 21:12 V38982AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 10/12/23 21:12 V38982AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 10/12/23 21:12 V38982AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 10/12/23 21:12 V38982AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 10/12/23 21:12 V38982AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 10/12/23 21:12 V38982AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 10/12/23 21:12 V38982AMP <1.71 µg/L 1.71 5.00 4-Chlorophenyl phenyl ether 1 10/12/23 21:12 V38982AMP <0.405 µg/L 0.405 2.00Chrysene 1 10/12/23 21:12 V38982AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 10/12/23 21:12 V38982AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 10/12/23 21:12 V38982AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 10/12/23 21:12 V38982AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 10/12/23 21:12 V38982AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 10/12/23 21:12 V38982AMP <1.89 µg/L 1.89 5.00 3,3'-Dichlorobenzidine 1 10/12/23 21:12 V38982AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 10/12/23 21:12 V38982AMP <0.745 µg/L 0.745 5.00Diethyl phthalate 1 10/12/23 21:12 V38982AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 10/12/23 21:12 V38982AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 10/12/23 21:12 V38982AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 10/12/23 21:12 V38982AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 10/12/23 21:12 V38982AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 17 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-2 97408 Matrix: 10/10/2023 13:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 10/12/23 21:12 V38982AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 10/12/23 21:12 V38982AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 10/12/23 21:12 V38982AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 10/12/23 21:12 V38982AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 10/12/23 21:12 V38982AMP <0.807 µg/L 0.807 2.00Fluorene 1 10/12/23 21:12 V38982AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 10/12/23 21:12 V38982AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 10/12/23 21:12 V38982AMP <2.05 µg/L 2.05 5.00 Hexachlorocyclopentadiene 1 10/12/23 21:12 V38982AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 10/12/23 21:12 V38982AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 10/12/23 21:12 V38982AMP <0.444 µg/L 0.444 5.00Isophorone 1 10/12/23 21:12 V38982AMP <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 10/12/23 21:12 V38982AMP <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 10/12/23 21:12 V38982AMP <0.728 µg/L 0.728 2.00Naphthalene 1 10/12/23 21:12 V38982AMP <0.905 µg/L 0.905 5.00 Nitrobenzene 1 10/12/23 21:12 V38982AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 10/12/23 21:12 V38982AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 10/12/23 21:12 V38982AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 10/12/23 21:12 V38982AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 10/12/23 21:12 V38982AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 10/12/23 21:12 V38982AMP <0.428 µg/L 0.428 2.00Phenanthrene 1 10/12/23 21:12 V38982AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 18 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:MW-2 97408 Matrix: 10/10/2023 13:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <0.651 µg/L 0.651 5.00Phenol 1 10/12/23 21:12 V38982AMP <0.434 µg/L 0.434 2.00Pyrene 1 10/12/23 21:12 V38982AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 10/12/23 21:12 V38982AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 10/12/23 21:12 V38982AMP 625.1Surrogate: Phenol-d5 25.6 Limits: 10-63%10/12/23 21:121 AMP Surrogate: 2-Fluorobiphenyl 67.2 Limits: 49-118%10/12/23 21:121 AMP V38982 Surrogate: 2-Fluorophenol 36.5 Limits: 22-84%10/12/23 21:121 AMP V38982 Surrogate: Nitrobenzene-d5 57.0 Limits: 43-123%10/12/23 21:121 AMP V38982 Surrogate: 4-Terphenyl-d14 75.8 Limits: 49-151%10/12/23 21:121 AMP V38982 Surrogate: 2,4,6-Tribromophenol 80.5 Limits: 31-144%10/12/23 21:121 AMP V38982 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 19 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:Field Blank 97409 Matrix: 10/10/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 10/14/23 03:46 V39113MSA <0.180 µg/L 0.180 0.500Benzene 1 10/14/23 03:46 V39113MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 10/14/23 03:46 V39113MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 10/14/23 03:46 V39113MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 10/14/23 03:46 V39113MSA <1.50 µg/L 1.50 5.00Bromoform 1 10/14/23 03:46 V39113MSA <0.280 µg/L 0.280 1.00Bromomethane 1 10/14/23 03:46 V39113MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 10/14/23 03:46 V39113MSA <0.200 µg/L 0.200 0.500 sec-Butyl benzene 1 10/14/23 03:46 V39113MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 10/14/23 03:46 V39113MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 10/14/23 03:46 V39113MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 10/14/23 03:46 V39113MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 10/14/23 03:46 V39113MSA <0.430 µg/L 0.430 1.00Chloroethane 1 10/14/23 03:46 V39113MSA <0.220 µg/L 0.220 0.500Chloroform 1 10/14/23 03:46 V39113MSA <0.220 µg/L 0.220 0.500 Chloromethane 1 10/14/23 03:46 V39113MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 10/14/23 03:46 V39113MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 10/14/23 03:46 V39113MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 10/14/23 03:46 V39113MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 10/14/23 03:46 V39113MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 10/14/23 03:46 V39113MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 10/14/23 03:46 V39113MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 20 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:Field Blank 97409 Matrix: 10/10/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 10/14/23 03:46 V39113MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 10/14/23 03:46 V39113MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 10/14/23 03:46 V39113MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 10/14/23 03:46 V39113MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 10/14/23 03:46 V39113MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 10/14/23 03:46 V39113MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 10/14/23 03:46 V39113MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 10/14/23 03:46 V39113MSA <0.180 µg/L 0.180 0.500 trans-1,2-Dichloroethene 1 10/14/23 03:46 V39113MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 10/14/23 03:46 V39113MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 10/14/23 03:46 V39113MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 10/14/23 03:46 V39113MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 10/14/23 03:46 V39113MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 10/14/23 03:46 V39113MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 10/14/23 03:46 V39113MSA <42.0 µg/L 42.0 200 Ethanol 1 10/14/23 03:46 V39113MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 10/14/23 03:46 V39113MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 10/14/23 03:46 V39113MSA <0.380 µg/L 0.380 1.002-Hexanone 1 10/14/23 03:46 V39113MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 10/14/23 03:46 V39113MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 10/14/23 03:46 V39113MSA 2.18 J µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 10/14/23 03:46 V39113MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 21 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:Field Blank 97409 Matrix: 10/10/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 10/14/23 03:46 V39113MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 10/14/23 03:46 V39113MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 10/14/23 03:46 V39113MSA <0.470 µg/L 0.470 1.00Naphthalene 1 10/14/23 03:46 V39113MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 10/14/23 03:46 V39113MSA <0.220 µg/L 0.220 0.500Styrene 1 10/14/23 03:46 V39113MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 10/14/23 03:46 V39113MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 10/14/23 03:46 V39113MSA <0.220 µg/L 0.220 0.500 Tetrachloroethene 1 10/14/23 03:46 V39113MSA <0.220 µg/L 0.220 0.500Toluene 1 10/14/23 03:46 V39113MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 10/14/23 03:46 V39113MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 10/14/23 03:46 V39113MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 10/14/23 03:46 V39113MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 10/14/23 03:46 V39113MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 10/14/23 03:46 V39113MSA <0.180 µg/L 0.180 0.500 Trichlorofluoromethane 1 10/14/23 03:46 V39113MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 10/14/23 03:46 V39113MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 10/14/23 03:46 V39113MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 10/14/23 03:46 V39113MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 10/14/23 03:46 V39113MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 10/14/23 03:46 V39113MSA <0.210 µg/L 0.210 0.500o-Xylene 1 10/14/23 03:46 V39113MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 22 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:Field Blank 97409 Matrix: 10/10/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V39112 10/13/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 10/14/23 03:46 V39113MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 10/14/23 03:46 V39113 Surrogate: 4-Bromofluorobenzene 99.6 Limits: 70-130%10/14/23 03:461 MSA V39113 Surrogate: Dibromofluoromethane 99.0 Limits: 70-130%10/14/23 03:461 MSA V39113 Surrogate: 1,2-Dichloroethane - d4 101 Limits: 70-130%10/14/23 03:461 MSA V39113 Surrogate: Toluene-d8 102 Limits: 70-130%10/14/23 03:461 MSA V39113 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <0.302 µg/L 0.302 2.00Acenaphthene 1 10/12/23 21:34 V38982AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 10/12/23 21:34 V38982AMP <0.836 µg/L 0.836 2.00Anthracene 1 10/12/23 21:34 V38982AMP <1.32 µg/L 1.32 10.0 Benzidine 1 10/12/23 21:34 V38982AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 10/12/23 21:34 V38982AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 10/12/23 21:34 V38982AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 10/12/23 21:34 V38982AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 10/12/23 21:34 V38982AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 10/12/23 21:34 V38982AMP <1.10 µg/L 1.10 10.0Benzoic Acid 1 10/12/23 21:34 V38982AMP <0.684 µg/L 0.684 5.00 Benzyl alcohol 1 10/12/23 21:34 V38982AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 10/12/23 21:34 V38982AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 23 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:Field Blank 97409 Matrix: 10/10/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 10/12/23 21:34 V38982AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 10/12/23 21:34 V38982AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 10/12/23 21:34 V38982AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 10/12/23 21:34 V38982AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 10/12/23 21:34 V38982AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 10/12/23 21:34 V38982AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 10/12/23 21:34 V38982AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 10/12/23 21:34 V38982AMP <1.71 µg/L 1.71 5.00 4-Chlorophenyl phenyl ether 1 10/12/23 21:34 V38982AMP <0.405 µg/L 0.405 2.00Chrysene 1 10/12/23 21:34 V38982AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 10/12/23 21:34 V38982AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 10/12/23 21:34 V38982AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 10/12/23 21:34 V38982AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 10/12/23 21:34 V38982AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 10/12/23 21:34 V38982AMP <1.89 µg/L 1.89 5.00 3,3'-Dichlorobenzidine 1 10/12/23 21:34 V38982AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 10/12/23 21:34 V38982AMP <0.745 µg/L 0.745 5.00Diethyl phthalate 1 10/12/23 21:34 V38982AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 10/12/23 21:34 V38982AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 10/12/23 21:34 V38982AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 10/12/23 21:34 V38982AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 10/12/23 21:34 V38982AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 24 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:Field Blank 97409 Matrix: 10/10/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 10/12/23 21:34 V38982AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 10/12/23 21:34 V38982AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 10/12/23 21:34 V38982AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 10/12/23 21:34 V38982AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 10/12/23 21:34 V38982AMP <0.807 µg/L 0.807 2.00Fluorene 1 10/12/23 21:34 V38982AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 10/12/23 21:34 V38982AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 10/12/23 21:34 V38982AMP <2.05 µg/L 2.05 5.00 Hexachlorocyclopentadiene 1 10/12/23 21:34 V38982AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 10/12/23 21:34 V38982AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 10/12/23 21:34 V38982AMP <0.444 µg/L 0.444 5.00Isophorone 1 10/12/23 21:34 V38982AMP <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 10/12/23 21:34 V38982AMP <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 10/12/23 21:34 V38982AMP <0.728 µg/L 0.728 2.00Naphthalene 1 10/12/23 21:34 V38982AMP <0.905 µg/L 0.905 5.00 Nitrobenzene 1 10/12/23 21:34 V38982AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 10/12/23 21:34 V38982AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 10/12/23 21:34 V38982AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 10/12/23 21:34 V38982AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 10/12/23 21:34 V38982AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 10/12/23 21:34 V38982AMP <0.428 µg/L 0.428 2.00Phenanthrene 1 10/12/23 21:34 V38982AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 25 of 40 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-284-0002 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 10/11/2023 Silver Creek Airport Report Date : 10/17/2023 Sample ID : Lab No : Sampled:Field Blank 97409 Matrix: 10/10/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38943 10/12/23 09:56 <0.651 µg/L 0.651 5.00Phenol 1 10/12/23 21:34 V38982AMP <0.434 µg/L 0.434 2.00Pyrene 1 10/12/23 21:34 V38982AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 10/12/23 21:34 V38982AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 10/12/23 21:34 V38982AMP 625.1Surrogate: Phenol-d5 25.2 Limits: 10-63%10/12/23 21:341 AMP Surrogate: 2-Fluorobiphenyl 72.6 Limits: 49-118%10/12/23 21:341 AMP V38982 Surrogate: 2-Fluorophenol 37.0 Limits: 22-84%10/12/23 21:341 AMP V38982 Surrogate: Nitrobenzene-d5 64.0 Limits: 43-123%10/12/23 21:341 AMP V38982 Surrogate: 4-Terphenyl-d14 82.2 Limits: 49-151%10/12/23 21:341 AMP V38982 Surrogate: 2,4,6-Tribromophenol 82.8 Limits: 31-144%10/12/23 21:341 AMP V38982 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 26 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V39113QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V39112 Associated Lab Samples: 97407, 97408, 97409 LRB-V39112 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 10/14/23 02:5710.01.80<1.80µg/LAcetone 10/14/23 02:570.5000.180<0.180µg/LBenzene 10/14/23 02:570.5000.210<0.210µg/LBromobenzene 10/14/23 02:571.000.420<0.420µg/LBromochloromethane 10/14/23 02:570.5000.160<0.160µg/LBromodichloromethane 10/14/23 02:575.001.50<1.50µg/LBromoform 10/14/23 02:571.000.280<0.280µg/LBromomethane 10/14/23 02:570.5000.180<0.180µg/Ln-Butylbenzene 10/14/23 02:570.5000.200<0.200µg/Lsec-Butyl benzene 10/14/23 02:572.000.920<0.920µg/Ltert-Butyl benzene 10/14/23 02:570.5000.180<0.180µg/LCarbon Tetrachloride 10/14/23 02:570.5000.190<0.190µg/LChlorobenzene 10/14/23 02:570.5000.190<0.190µg/LChlorodibromomethane 10/14/23 02:571.000.430<0.430µg/LChloroethane 10/14/23 02:570.5000.220<0.220µg/LChloroform 10/14/23 02:570.5000.220<0.220µg/LChloromethane 10/14/23 02:570.5000.200<0.200µg/L2-Chlorotoluene 10/14/23 02:570.5000.200<0.200µg/L4-Chlorotoluene 10/14/23 02:570.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 10/14/23 02:572.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 10/14/23 02:570.5000.200<0.200µg/L1,2-Dibromoethane 10/14/23 02:570.5000.230<0.230µg/LDibromomethane 10/14/23 02:570.5000.220<0.220µg/L1,2-Dichlorobenzene 10/14/23 02:570.5000.190<0.190µg/L1,3-Dichlorobenzene 10/14/23 02:570.5000.210<0.210µg/L1,4-Dichlorobenzene 10/14/23 02:575.001.20<1.20µg/LDichlorodifluoromethane 10/14/23 02:570.5000.240<0.240µg/L1,1-Dichloroethane Page 1 of 12Date:10/17/2023 03:35 PM Page 27 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V39113QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V39112 Associated Lab Samples: 97407, 97408, 97409 LRB-V39112 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 10/14/23 02:570.5000.150<0.150µg/L1,2-Dichloroethane 10/14/23 02:570.5000.150<0.150µg/L1,1-Dichloroethene 10/14/23 02:570.5000.200<0.200µg/Lcis-1,2-Dichloroethene 10/14/23 02:570.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 10/14/23 02:570.5000.190<0.190µg/L1,2-Dichloropropane 10/14/23 02:570.5000.130<0.130µg/L1,3-Dichloropropane 10/14/23 02:572.000.210<0.210µg/L2,2-Dichloropropane 10/14/23 02:570.5000.200<0.200µg/L1,1-Dichloropropene 10/14/23 02:570.5000.210<0.210µg/Lcis-1,3-Dichloropropene 10/14/23 02:570.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 10/14/23 02:5720042.0<42.0µg/LEthanol 10/14/23 02:570.5000.170<0.170µg/LEthylbenzene 10/14/23 02:573.000.350<0.350µg/LHexachlorobutadiene 10/14/23 02:571.000.380<0.380µg/L2-Hexanone 10/14/23 02:570.5000.180<0.180µg/LIsopropylbenzene 10/14/23 02:570.5000.089<0.089µg/L4-Isopropyl toluene 10/14/23 02:575.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 10/14/23 02:571.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 10/14/23 02:571.000.078<0.078µg/L4-Methyl-2-Pentanone 10/14/23 02:572.000.330<0.330µg/LMethylene Chloride 10/14/23 02:571.000.470<0.470µg/LNaphthalene 10/14/23 02:570.5000.190<0.190µg/Ln-Propylbenzene 10/14/23 02:570.5000.220<0.220µg/LStyrene 10/14/23 02:570.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane 10/14/23 02:570.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 10/14/23 02:570.5000.220<0.220µg/LTetrachloroethene 10/14/23 02:570.5000.220<0.220µg/LToluene Page 2 of 12Date:10/17/2023 03:35 PM Page 28 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V39113QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V39112 Associated Lab Samples: 97407, 97408, 97409 LRB-V39112 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 10/14/23 02:570.5000.380<0.380µg/L1,2,3-Trichlorobenzene 10/14/23 02:570.5000.310<0.310µg/L1,2,4-Trichlorobenzene 10/14/23 02:570.5000.160<0.160µg/L1,1,1-Trichloroethane 10/14/23 02:570.5000.096<0.096µg/L1,1,2-Trichloroethane 10/14/23 02:570.5000.180<0.180µg/LTrichloroethene 10/14/23 02:570.5000.180<0.180µg/LTrichlorofluoromethane 10/14/23 02:570.5000.270<0.270µg/L1,2,3-Trichloropropane 10/14/23 02:570.5000.190<0.190µg/L1,2,4-Trimethylbenzene 10/14/23 02:570.5000.180<0.180µg/L1,3,5-Trimethylbenzene 10/14/23 02:575.001.00<1.00µg/LVinyl Acetate 10/14/23 02:570.5000.170<0.170µg/LVinyl Chloride 10/14/23 02:570.5000.210<0.210µg/Lo-Xylene 10/14/23 02:571.000.420<0.420µg/Lm,p-Xylene 10/14/23 02:574-Bromofluorobenzene (S)98.8 70-130 10/14/23 02:57Dibromofluoromethane (S)98.4 70-130 10/14/23 02:571,2-Dichloroethane - d4 (S)101 70-130 10/14/23 02:57Toluene-d8 (S)101 70-130 LCS-V39112 LCSD-V39112Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 25.2 63.067.226.940.0µg/LAcetone 40-160 6.5 20.0 20.4 10210320.620.0µg/LBenzene 70-130 0.9 20.0 20.1 10110120.120.0µg/LBromobenzene 70-130 0.0 20.0 19.6 98.099.519.920.0µg/LBromochloromethane 70-130 1.5 20.0 19.9 99.599.519.920.0µg/LBromodichloromethane 70-130 0.0 20.0 Page 3 of 12Date:10/17/2023 03:35 PM Page 29 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V39113QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V39112 LCS-V39112 LCSD-V39112Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 19.0 95.097.519.520.0µg/LBromoform 70-130 2.5 20.0 20.1 10189.517.920.0µg/LBromomethane 60-140 11.5 20.0 20.7 10410120.220.0µg/Ln-Butylbenzene 70-130 2.4 20.0 20.7 10410320.620.0µg/Lsec-Butyl benzene 70-130 0.4 20.0 20.3 10210020.020.0µg/Ltert-Butyl benzene 70-130 1.4 20.0 20.7 10410420.720.0µg/LCarbon Tetrachloride 70-130 0.0 20.0 20.8 10410320.520.0µg/LChlorobenzene 70-130 1.4 20.0 19.7 98.599.019.820.0µg/LChlorodibromomethane 70-130 0.5 20.0 13.7 68.568.513.720.0µg/LChloroethane 60-140 0.0 20.0 20.1 10199.519.920.0µg/LChloroform 70-130 1.0 20.0 19.3 96.597.519.520.0µg/LChloromethane 60-140 1.0 20.0 20.6 10310220.420.0µg/L2-Chlorotoluene 70-130 0.9 20.0 20.6 10310220.420.0µg/L4-Chlorotoluene 70-130 0.9 20.0 20.1 10110220.320.0µg/LDi-Isopropyl Ether (DIPE)70-130 0.9 20.0 20.1 10111021.920.0µg/L1,2-Dibromo-3-Chloropropane 70-130 8.5 20.0 19.4 97.010120.220.0µg/L1,2-Dibromoethane 70-130 4.0 20.0 19.9 99.510220.420.0µg/LDibromomethane 70-130 2.4 20.0 21.2 10610320.620.0µg/L1,2-Dichlorobenzene 70-130 2.8 20.0 20.8 10410220.320.0µg/L1,3-Dichlorobenzene 70-130 2.4 20.0 20.3 10210120.120.0µg/L1,4-Dichlorobenzene 70-130 0.9 20.0 20.2 10110020.020.0µg/LDichlorodifluoromethane 60-140 0.9 20.0 19.9 99.599.019.820.0µg/L1,1-Dichloroethane 70-130 0.5 20.0 19.4 97.010020.020.0µg/L1,2-Dichloroethane 70-130 3.0 20.0 20.7 10410521.020.0µg/L1,1-Dichloroethene 70-130 1.4 20.0 20.2 10110120.120.0µg/Lcis-1,2-Dichloroethene 70-130 0.4 20.0 20.0 10010220.320.0µg/Ltrans-1,2-Dichloroethene 70-130 1.4 20.0 Page 4 of 12Date:10/17/2023 03:35 PM Page 30 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V39113QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V39112 LCS-V39112 LCSD-V39112Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 20.5 10310320.620.0µg/L1,2-Dichloropropane 70-130 0.4 20.0 19.4 97.099.519.920.0µg/L1,3-Dichloropropane 70-130 2.5 20.0 18.4 92.093.518.720.0µg/L2,2-Dichloropropane 70-130 1.6 20.0 21.1 10610721.320.0µg/L1,1-Dichloropropene 70-130 0.9 20.0 19.1 95.598.019.620.0µg/Lcis-1,3-Dichloropropene 70-130 2.5 20.0 18.7 93.596.519.320.0µg/Ltrans-1,3-Dichloropropene 70-130 3.1 20.0 419 83.893.4467500µg/LEthanol 60-140 10.8 20.0 20.3 10210120.120.0µg/LEthylbenzene 70-130 0.9 20.0 20.3 10210220.420.0µg/LHexachlorobutadiene 70-130 0.4 20.0 16.8 84.095.519.120.0µg/L2-Hexanone 60-140 12.8 20.0 20.8 10410220.420.0µg/LIsopropylbenzene 70-130 1.9 20.0 21.2 10610621.220.0µg/L4-Isopropyl toluene 70-130 0.0 20.0 15.1 75.580.016.020.0µg/LMethyl Ethyl Ketone (MEK)60-140 5.7 20.0 19.7 98.510320.620.0µg/LMethyl tert-butyl ether (MTBE)70-130 4.4 20.0 19.0 95.010420.720.0µg/L4-Methyl-2-Pentanone 60-140 8.5 20.0 18.7 93.595.019.020.0µg/LMethylene Chloride 70-130 1.5 20.0 18.2 91.097.519.520.0µg/LNaphthalene 70-130 6.8 20.0 20.6 10310220.420.0µg/Ln-Propylbenzene 70-130 0.9 20.0 20.3 10210320.620.0µg/LStyrene 70-130 1.4 20.0 20.9 10510520.920.0µg/L1,1,1,2-Tetrachloroethane 70-130 0.0 20.0 19.9 99.510220.320.0µg/L1,1,2,2-Tetrachloroethane 70-130 1.9 20.0 20.5 10310520.920.0µg/LTetrachloroethene 70-130 1.9 20.0 20.2 10110220.420.0µg/LToluene 70-130 0.9 20.0 21.8 10911523.020.0µg/L1,2,3-Trichlorobenzene 70-130 5.3 20.0 21.0 10510821.520.0µg/L1,2,4-Trichlorobenzene 70-130 2.3 20.0 20.2 10110020.020.0µg/L1,1,1-Trichloroethane 70-130 0.9 20.0 Page 5 of 12Date:10/17/2023 03:35 PM Page 31 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V39113QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V39112 LCS-V39112 LCSD-V39112Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 19.1 95.510120.220.0µg/L1,1,2-Trichloroethane 70-130 5.5 20.0 20.6 10310320.520.0µg/LTrichloroethene 70-130 0.4 20.0 21.5 10810621.120.0µg/LTrichlorofluoromethane 60-140 1.8 20.0 18.6 93.098.019.620.0µg/L1,2,3-Trichloropropane 70-130 5.2 20.0 20.8 10410420.720.0µg/L1,2,4-Trimethylbenzene 70-130 0.4 20.0 20.8 10410420.720.0µg/L1,3,5-Trimethylbenzene 70-130 0.4 20.0 18.9 94.510120.120.0µg/LVinyl Acetate 60-140 6.1 20.0 20.4 10299.019.820.0µg/LVinyl Chloride 60-140 2.9 20.0 20.2 10110120.120.0µg/Lo-Xylene 70-130 0.4 20.0 42.4 10610642.240.0µg/Lm,p-Xylene 70-130 0.4 20.0 98.496.04-Bromofluorobenzene (S)70-130 97.699.0Dibromofluoromethane (S)70-130 97.61001,2-Dichloroethane - d4 (S)70-130 101101Toluene-d8 (S)70-130 Page 6 of 12Date:10/17/2023 03:35 PM Page 32 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38982QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38943 Associated Lab Samples: 97407, 97408, 97409 LRB-V38943 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 10/12/23 18:342.000.302<0.302µg/LAcenaphthene 10/12/23 18:342.000.297<0.297µg/LAcenaphthylene 10/12/23 18:342.000.836<0.836µg/LAnthracene 10/12/23 18:3410.01.32<1.32µg/LBenzidine 10/12/23 18:342.000.637<0.637µg/LBenzo(a)anthracene 10/12/23 18:342.001.02<1.02µg/LBenzo(a)pyrene 10/12/23 18:345.002.49<2.49µg/LBenzo(b)fluoranthene 10/12/23 18:345.001.01<1.01µg/LBenzo(g,h,i)perylene 10/12/23 18:345.001.99<1.99µg/LBenzo(k)fluoranthene 10/12/23 18:3410.01.10<1.10µg/LBenzoic Acid 10/12/23 18:345.000.684<0.684µg/LBenzyl alcohol 10/12/23 18:345.000.468<0.468µg/LBis(2-Chloroethoxy)methane 10/12/23 18:345.001.04<1.04µg/LBis(2-Chloroethyl)ether 10/12/23 18:345.001.08<1.08µg/LBis(2-Chloroisopropyl)ether 10/12/23 18:3410.03.46<3.46µg/LBis(2-ethylhexyl)phthalate 10/12/23 18:345.001.11<1.11µg/L4-Bromophenyl phenyl ether 10/12/23 18:345.001.83<1.83µg/LButyl benzyl phthalate 10/12/23 18:345.001.18<1.18µg/L4-Chloro-3-methylphenol 10/12/23 18:3420.07.38<7.38µg/L2-Chloronaphthalene 10/12/23 18:3410.00.938<0.938µg/L2-Chlorophenol 10/12/23 18:345.001.71<1.71µg/L4-Chlorophenyl phenyl ether 10/12/23 18:342.000.405<0.405µg/LChrysene 10/12/23 18:342.000.434<0.434µg/LDibenz(a,h)anthracene 10/12/23 18:345.000.856<0.856µg/LDibenzofuran 10/12/23 18:345.002.00<2.00µg/L1,2-Dichlorobenzene 10/12/23 18:345.002.00<2.00µg/L1,3-Dichlorobenzene 10/12/23 18:345.002.05<2.05µg/L1,4-Dichlorobenzene Page 7 of 12Date:10/17/2023 03:35 PM Page 33 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38982QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38943 Associated Lab Samples: 97407, 97408, 97409 LRB-V38943 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 10/12/23 18:345.001.89<1.89µg/L3,3'-Dichlorobenzidine 10/12/23 18:3410.01.46<1.46µg/L2,4-Dichlorophenol 10/12/23 18:345.000.745<0.745µg/LDiethyl phthalate 10/12/23 18:345.000.939<0.939µg/LDimethyl phthalate 10/12/23 18:3420.01.57<1.57µg/L2,4-Dimethylphenol 10/12/23 18:345.002.06<2.06µg/LDi-n-butyl phthalate 10/12/23 18:3410.02.07<2.07µg/L4,6-Dinitro-2-methylphenol 10/12/23 18:3410.01.92<1.92µg/L2,4-Dinitrophenol 10/12/23 18:345.001.11<1.11µg/L2,4-Dinitrotoluene 10/12/23 18:345.000.809<0.809µg/L2,6-Dinitrotoluene 10/12/23 18:345.001.65<1.65µg/LDi-n-Octyl Phthalate 10/12/23 18:342.000.250<0.250µg/LFluoranthene 10/12/23 18:342.000.807<0.807µg/LFluorene 10/12/23 18:345.000.979<0.979µg/LHexachlorobenzene 10/12/23 18:345.002.73<2.73µg/LHexachlorobutadiene 10/12/23 18:345.002.05<2.05µg/LHexachlorocyclopentadiene 10/12/23 18:345.001.76<1.76µg/LHexachloroethane 10/12/23 18:342.000.477<0.477µg/LIndeno(1,2,3-cd)pyrene 10/12/23 18:345.000.444<0.444µg/LIsophorone 10/12/23 18:342.001.14<1.14µg/L1-Methylnaphthalene 10/12/23 18:342.000.666<0.666µg/L2-Methylnaphthalene 10/12/23 18:342.000.728<0.728µg/LNaphthalene 10/12/23 18:345.000.905<0.905µg/LNitrobenzene 10/12/23 18:345.000.493<0.493µg/L2-Nitrophenol 10/12/23 18:3410.01.23<1.23µg/L4-Nitrophenol 10/12/23 18:345.001.10<1.10µg/LN-Nitrosodiphenylamine 10/12/23 18:345.000.641<0.641µg/LN-Nitroso-di-n-propylamine Page 8 of 12Date:10/17/2023 03:35 PM Page 34 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38982QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38943 Associated Lab Samples: 97407, 97408, 97409 LRB-V38943 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 10/12/23 18:345.001.43<1.43µg/LPentachlorophenol 10/12/23 18:342.000.428<0.428µg/LPhenanthrene 10/12/23 18:345.000.651<0.651µg/LPhenol 10/12/23 18:342.000.434<0.434µg/LPyrene 10/12/23 18:345.002.21<2.21µg/L1,2,4-Trichlorobenzene 10/12/23 18:345.001.32<1.32µg/L2,4,6-Trichlorophenol 10/12/23 18:342-Fluorobiphenyl (S)73.6 49-118 10/12/23 18:342-Fluorophenol (S)40.9 22-84 10/12/23 18:34Nitrobenzene-d5 (S)63.2 43-123 10/12/23 18:344-Terphenyl-d14 (S)83.0 49-151 10/12/23 18:342,4,6-Tribromophenol (S)87.6 31-144 10/12/23 18:34Phenol-d5 (S)27.6 10-63 LCS-V38943 LCSD-V38943Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 32.8 65.674.437.250.0µg/LAcenaphthene 47-145 12.5 20.0 32.7 65.476.438.250.0µg/LAcenaphthylene 33-145 15.5 20.0 39.9 79.886.443.250.0µg/LAnthracene 27-133 7.9 20.0 12.6 25.263.231.650.0µg/LBenzidine 15-150 85.9*20.0 39.2 78.484.642.350.0µg/LBenzo(a)anthracene 33-143 7.6 20.0 43.9 87.894.247.150.0µg/LBenzo(a)pyrene 17-163 7.0 20.0 40.9 81.887.443.750.0µg/LBenzo(b)fluoranthene 24-159 6.6 20.0 40.0 80.086.043.050.0µg/LBenzo(g,h,i)perylene 10-219 7.2 20.0 41.2 82.489.244.650.0µg/LBenzo(k)fluoranthene 11-162 7.9 20.0 19.7 39.436.818.450.0µg/LBenzoic Acid 10-125 6.8 20.0 Page 9 of 12* QC Fail Date:10/17/2023 03:35 PM Page 35 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38982QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38943 LCS-V38943 LCSD-V38943Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 31.8 63.669.834.950.0µg/LBenzyl alcohol 16-107 9.2 20.0 28.9 57.865.632.850.0µg/LBis(2-Chloroethoxy)methane 33-184 12.6 20.0 26.2 52.460.430.250.0µg/LBis(2-Chloroethyl)ether 12-158 14.1 20.0 25.4 50.858.629.350.0µg/LBis(2-Chloroisopropyl)ether 36-166 14.2 20.0 43.1 86.292.846.450.0µg/LBis(2-ethylhexyl)phthalate 10-158 7.3 20.0 37.0 74.081.440.750.0µg/L4-Bromophenyl phenyl ether 53-127 9.5 20.0 40.7 81.487.243.650.0µg/LButyl benzyl phthalate 10-152 6.8 20.0 31.8 63.668.834.450.0µg/L4-Chloro-3-methylphenol 22-147 7.8 20.0 31.3 62.674.637.350.0µg/L2-Chloronaphthalene 60-118 17.4 20.0 28.7 57.465.832.950.0µg/L2-Chlorophenol 23-134 13.6 20.0 35.0 70.079.039.550.0µg/L4-Chlorophenyl phenyl ether 25-158 12.0 20.0 40.5 81.088.044.050.0µg/LChrysene 17-168 8.2 20.0 31.1 62.269.834.950.0µg/LDibenz(a,h)anthracene 10-227 11.5 20.0 35.2 70.480.640.350.0µg/LDibenzofuran 39-114 13.5 20.0 24.0 48.054.627.350.0µg/L1,2-Dichlorobenzene 32-129 12.8 20.0 22.6 45.252.026.050.0µg/L1,3-Dichlorobenzene 20-124 13.9 20.0 21.6 43.250.025.050.0µg/L1,4-Dichlorobenzene 20-124 14.5 20.0 34.2 68.474.837.450.0µg/L3,3'-Dichlorobenzidine 10-262 8.9 20.0 31.8 63.671.035.550.0µg/L2,4-Dichlorophenol 39-135 10.9 20.0 39.3 78.685.642.850.0µg/LDiethyl phthalate 10-114 8.5 20.0 39.8 79.687.443.750.0µg/LDimethyl phthalate 10-112 9.3 20.0 39.7 79.488.044.050.0µg/L2,4-Dimethylphenol 32-119 10.2 20.0 43.2 86.491.845.950.0µg/LDi-n-butyl phthalate 10-118 6.0 20.0 38.8 77.683.641.850.0µg/L4,6-Dinitro-2-methylphenol 10-181 7.4 20.0 38.9 77.880.240.150.0µg/L2,4-Dinitrophenol 10-191 3.0 20.0 41.6 83.291.045.550.0µg/L2,4-Dinitrotoluene 39-139 8.9 20.0 Page 10 of 12Date:10/17/2023 03:35 PM Page 36 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38982QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38943 LCS-V38943 LCSD-V38943Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 40.9 81.888.444.250.0µg/L2,6-Dinitrotoluene 50-158 7.7 20.0 43.8 87.692.846.450.0µg/LDi-n-Octyl Phthalate 10-146 5.7 20.0 40.3 80.686.843.450.0µg/LFluoranthene 26-137 7.4 20.0 37.2 74.482.641.350.0µg/LFluorene 59-121 10.4 20.0 39.8 79.689.244.650.0µg/LHexachlorobenzene 10-152 11.3 20.0 24.7 49.456.628.350.0µg/LHexachlorobutadiene 24-116 13.5 20.0 19.2 38.448.224.150.0µg/LHexachlorocyclopentadiene 32-117 22.6*20.0 21.0 42.049.824.950.0µg/LHexachloroethane 40-113 16.9 20.0 40.0 80.086.243.150.0µg/LIndeno(1,2,3-cd)pyrene 10-171 7.4 20.0 27.8 55.661.830.950.0µg/LIsophorone 21-196 10.5 20.0 26.1 52.259.429.750.0µg/L1-Methylnaphthalene 40-135 12.9 20.0 26.1 52.260.430.250.0µg/L2-Methylnaphthalene 18-121 14.5 20.0 24.2 48.456.628.350.0µg/LNaphthalene 21-133 15.6 20.0 26.9 53.861.430.750.0µg/LNitrobenzene 35-180 13.1 20.0 28.3 56.663.831.950.0µg/L2-Nitrophenol 29-182 11.9 20.0 20.4 40.842.221.150.0µg/L4-Nitrophenol 10-132 3.3 20.0 45.5 91.098.649.350.0µg/LN-Nitrosodiphenylamine 69-152 8.0 20.0 30.6 61.271.235.650.0µg/LN-Nitroso-di-n-propylamine 10-230 15.1 20.0 54.1 10811356.750.0µg/LPentachlorophenol 14-176 4.6 20.0 39.9 79.886.243.150.0µg/LPhenanthrene 54-120 7.7 20.0 13.9 27.830.415.250.0µg/LPhenol 10-112 8.9 20.0 41.4 82.889.044.550.0µg/LPyrene 52-115 7.2 20.0 23.8 47.654.227.150.0µg/L1,2,4-Trichlorobenzene 44-142 12.9 20.0 36.0 72.082.241.150.0µg/L2,4,6-Trichlorophenol 37-144 13.2 20.0 63.878.22-Fluorobiphenyl (S)49-118 36.441.52-Fluorophenol (S)22-84 Page 11 of 12* QC Fail Date:10/17/2023 03:35 PM Page 37 of 40 Quality Control Data 23-284-0002Report No: Project Description: Client ID:CES Group Silver Creek Airport QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38982QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38943 LCS-V38943 LCSD-V38943Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 52.460.4Nitrobenzene-d5 (S)43-123 77.887.64-Terphenyl-d14 (S)49-151 82.395.32,4,6-Tribromophenol (S)31-144 24.728.3Phenol-d5 (S)10-63 Page 12 of 12Date:10/17/2023 03:35 PM Page 38 of 40 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-284-0002 CES Group 00012 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT-15 5.3C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Caitlyn Cummins Date & Time:10/11/2023 09:57:41 Special precautions or instructions included? Comments: Page 39 of 40 Page 40 of 40