WI-1132_11814_CA_MRP_20230517_GWMR

 
WithersRavenel
Our People. Your Success. 

115 MacKenan Drive | Cary, NC 27511 
t: 919.469.3340 | f: 919.467.6008 | www.withersravenel.com | License No. F‐1479 
Asheville | Cary | Charlotte | Greensboro | Lumberton | Pittsboro | Raleigh | Southern Pines | Wilmington 

MONITORING REPORT  

Former Gregory Fork Variety 
UST # WI‐1132 
NCDEQ TF # 11814 
510 Gregory Fork Road 
Richlands, Onslow County, North Carolina 
NCDEQ Contract # N70522‐C 
WithersRavenel Project No. 23‐0307‐CG 

Prepared for: 
State of North Carolina 
Department of Environmental Quality 
Division of Waste Management  
Underground Storage Tank Section 
Federal & State Lead Program 
1646 Mail Service Center 
Raleigh, North Carolina 27699‐1646 

Prepared by:
WithersRavenel
115 MacKenan Drive 
Cary, North Carolina 27511 
North Carolina Firm License No. F‐1479 
May 17, 2023
WithersRavenel
Our People. Your Success. 

Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
ii 

May 17, 2023 

State of North Carolina 
Department of Environmental Quality 
Federal & State Lead Program 
Division of Waste Management‐Underground Storage Tank Section 
1646 Mail Service Center 
Raleigh, North Carolina 27699‐1646 

Attn: Mr. Thomas Chapman 

Re: Subsequent Monitoring Report  
Former Gregory Fork Variety 
510 Gregory Fork Road 
Richlands, Onslow County, North Carolina 
UST # WI‐1132 
Groundwater Incident Number: 11814 
NCDEQ Contract # N70522‐C 
WR Project Number:  23‐0307‐CG 

Mr. Chapman: 

WithersRavenel, Inc. (WR) has completed this Monitoring Report to document groundwater and 
supply well sampling activities completed at the site in association with our proposal, numbered 
TA‐01 for the above referenced facility, approved by the Federal & State Lead Program on March 
10, 2023 under Contract N70522‐C.  The enclosed report summarizes results of the recently 
completed assessment activities.    

WR appreciates the opportunity to be of service to the Federal & State Lead Program.  Should you 
have any questions regarding the attached, please contact Matthew James at (919) 469‐3340. 

Cordially, 
WithersRavenel 
  Kevin B. Buchanan G. Matthew James, PG 
Staff Environmental Scientist III Director of Geosciences 

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Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
iii 

TABLE OF CONTENTS 

SECTION A. SITE INFORMATION ..................................................................................................................... 1 
SECTION B. EXECUTIVE SUMMARY ................................................................................................................ 3 
SECTION C.  SITE HISTORY AND CHARACTERIZATION ........................................................................... 5 
SECTION D. ASSESSMENT ACTIVITIES: MARCH 2023 .............................................................................. 9 
SECTION E.  CONCLUSIONS AND RECOMMENDATIONS .................................................................... 13 

FIGURES  
Figure 1 General Location Map 
Figure 2 Site Map 
Figure 3 Groundwater Hydraulic Gradient Map (ft) –March 21, 2023 
Figure 4 Groundwater Analytical Results (µg/L) – March 21, 2023 
Figure 5 Groundwater Benzene Isoconcentration Map (µg/L) – March 21, 2023 
Figure 6 Groundwater Ethylbenzene Isoconcentration Map (µg/L) – March 21, 2023 
Figure 7 Groundwater Toluene Isoconcentration Map (µg/L) – March 21, 2023 
Figure 8 Groundwater Total Xylenes Isoconcentration Map (µg/L) – March 21, 2023 
Figure 9 Receptor Locations 
TABLES  
Table B‐1 Site History:  UST/AST System & Other Release Information 
Table B‐4A Summary of Groundwater Analytical Results 
Table B‐4B Summary of Groundwater Analytical Results (Abbreviated) 
Table B‐5A Public & Private Water Supply Well Information 
Table B‐5B Additional Receptor Information 
Table B‐7 Monitoring & Remediation Well Construction Information 
Table B‐9 Current & Historical Groundwater Elevations & Free Product Thickness’ 
APPENDIC
ES  
Appendix A Laboratory Analytical Report and Chain‐of‐Custody 
Appendix B Field Notes and Photographic Record 
Appendix C General Standard Operating Procedures 

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Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
 1  

SECTION A. SITE INFORMATION  
1. Site Identification 
Date of Report:  May 17, 2023 
Facility I.D.: 00‐0‐0000023060 
Incident No.: 11814 
Site Risk: High  
Site Rank: H0140D 
Land Use Category: Residential/Commercial 
Site Name: Former Gregory Fork Variety 
Site Location: 510 Gregory Fork Road 
Nearest City/Town: Richlands 
County: Onslow 
Description of Geographical Data Point:  Center of Former UST Area 
Location Method:  Google Earth® 
Latitude: 34.881385° 
Longitude: ‐77.576036° 
2. Contact Information 
Responsible Party: Rand Oil Company, Inc. (Dissolved) 

Property Owner(s): Chandra Kirby‐Enslen 
Address: PO Box 370 
Richlands, NC 28574 
Phone: 910‐430‐0820 

Consultant/Contractor: WithersRavenel 
Address:  115 MacKenan Drive, Cary, NC 27511 
Phone:  919‐469‐3340 

Analytical Laboratory: Waypoint Analytical, LLC  
State Certification Number: ENV402 
Address: 449 Springbrook Rd., Charlotte, NC 28217 
Phone: 704‐529‐6364 

WithersRavenel
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Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
2 
3.Release Information
Date Discovered:  December 1993 
Estimated Quantity of Release:  Unknown 
Cause of Release:  Compromised UST or Delivery System 
Source of Release: UST or Delivery System 
Type of Material Released: Petroleum 
Criteria Used to Classify Risk: Groundwater 2L Exceedances, Groundwater GCL 
Exceedances, Proximity to Active Supply Well.   
Sizes & Contents of UST System(s) from which 
Release Occurred:        
(2)2,000‐gallon gasoline USTs (removed), (1)
2,000‐gallon orphan UST (in‐place, out of service),
(1)2,000‐gallon gasoline UST (removed 06/2021)
4.Information about Monitoring Report
Date(s) of Assessment/Monitoring Event(s):March 21, 2023 
5.Certification
I, G. Matthew James, a Licensed Geologist for 
WithersRavenel, do certify that the information 
contained in this report is correct and accurate to 
the best of my knowledge. 
WithersRavenel, is licensed to practice 
geology/engineering in North Carolina.  
The certification numbers are C‐293 (Geology) and 
F‐1479 (Engineering). 
05-17-2023
WithersRavenel
Our People. Your Success. 

Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
3 

SECTION B. EXECUTIVE SUMMARY 

1. Summary of Activities Associated with Current TA 

WithersRavenel, Inc. (WR) completed sampling of site monitoring wells and water supply well 
WSW‐1 in association with TA‐01 under NCDEQ Contract #N70522‐C.   

2. Soil, Groundwater and LNAPL Assessment Information 

Soils 
No soil samples were obtained by WR in association with the current task authorization.  Soil and 
groundwater impacts were confirmed during the removal of two – 2,000‐gallon gasoline USTs (T1 
and T2) in 1994.  Additionally, one orphaned UST was discovered near the corner of the rental 
house.  This UST was not closed in place or removed as it was found located partially beneath one 
of the onsite buildings.  Soil impacts were also confirmed in the vicinity of this orphaned UST.  
Analytical results for these samples indicated total petroleum hydrocarbon (TPH) concentrations 
in excess of the NCDEQ action levels for gasoline range organics (GRO). Analytical results ranged 
from 424 mg/kg to 75,400 mg/kg.  An additional UST was removed from the location in June 
2021.  Soil samples collected from the product line run and sidewalls of the excavated area 
associated this closure showed TPH as GRO in each of the three product line samples and a single 
sample from beneath the former pump location at levels exceeding the (current) NCDEQ Action 
Level of 50 mg/kg.   

Groundwater  
Laboratory analytical results for groundwater samples obtained from site monitoring wells in 
March 2023 showed several petroleum‐related compounds at levels exceeding their 2L Standards 
defined by NCAC Title 15A, Subchapter 02L, Section .0202 (Water Quality Standards for Class GA 
Groundwater) in samples from wells MW‐1, MW‐2 and MW‐4.  No compounds were reported at 
concentrations exceeding their NC Gross Contaminant Levels (GCLs).  Total VOC concentrations 
for samples showed reductions of 11% (MW‐1), 39% (MW‐2), 95% (MW‐3R) and 32% (MW‐4) 
over the September 2021 sampling of the wells.   

LNAPL/Free Product 
No light, non‐aqueous phase liquid (LNAPL) or “free product” was detected in monitoring wells 
sampled in March 2023, nor has LNAPL/free product been identified in past sampling events.    

3.       Receptor Information 

WR did not perform a receptor update in association with the task authorization for the site; 
however, a receptor survey was performed by Agra Environmental at the property in 2009.  
According to the receptor survey, one active water supply well was identified within 1,500 feet of 
the subject site (WSW‐1 located approximately 40 feet south‐southwest of monitoring well MW‐
5).  WR had previously approached the property owner (Mrs. Honeycutt) about connecting to 
municipal water and abandoning WSW‐1.  Mrs. Honeycutt stated that she had granted NCDEQ 
WithersRavenel
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Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
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permission in 2010 to connect her property to municipal water and abandon the water supply well 
(WSW‐1).  WR attempted to obtain bids from qualified plumbers for the installation of a water line 
and meter at the property in the past, however, none of the plumbing companies contacted 
responded with completed bids.   

The closest mapped surface water feature is Mill Branch, a tributary to the New River, located 
approximately 950 feet west of the subject property.  This feature is surrounded by a wetland 
indexed by the US Fish & Wildlife Service, National Wetlands Inventory as a PF01A wetland: 
"Palustrine, Forested, Broad‐Leaved Deciduous, Temporary Flooded."  Additional wetland features 
identified as PF03/04B wetlands ("Palustrine, Forested, Broad‐Leaved Evergreen, Seasonally 
Saturated”) are located approximately 450‐ft south of the source location.  A shallow drainage 
ditch, typical of those present throughout eastern North Carolina, is located northwest of the 
subject property across Turtle Shell Road.  This ditch appears to flow westerly from the corner of 
Turtle Shell Road and Gregory Fork Road towards Mill Branch. It is not known whether 
groundwater discharges into this ditch.  An agricultural drainage ditch is located in fields to the 
east and northeast of the source location.    

Laboratory results for the sample obtained from WSW‐1 in March 2023 did not show the presence 
of targeted compounds by SM6200B at levels exceeding the laboratory method detection limit 
(MDL).   

4. Remediation Activities 

No remedial actions, beyond closure of UST systems in October 1994, November 1994, and June 
2021, have been undertaken at the site to date.   

5. Recommendations 

Based on the results of assessment and monitoring activities conducted at the site in association 
with this TA and the setting of the facility, WR recommends the following: 

 Complete additional efforts to facilitate the installation of a water line connection to the 
property serviced by WSW‐1 (513 Gregory Fork Road). 
 Following installation of a water line at 513 Gregory Fork Road (if completed), abandon supply 
well WSW‐1.   
 If funding is available, consider the completion of a targeted injection of a reactive oxidizing 
compound or other amendment such as BOS200 in source area groundwater to induce 
reduction of 2L exceedances. 
 Continued annual groundwater monitoring. 
 Continued sampling of WSW‐1 if in‐use. 

WithersRavenel
Our People. Your Success. 

Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
5 

SECTION C.  SITE HISTORY AND CHARACTERIZATION 

WR has completed sampling of site monitoring wells and supply well WSW‐1.  These activities 
were completed in association with TA‐01 under NCDEQ Contract # N70522‐C.  The site history 
and characterization are outlined below.   

1. UST Information 

The site is the former location of a retail fuel sales location which operated under Facility ID No. 
00‐0‐0023060.   Two USTs were permanently closed through removal in 1994.  An additional UST 
was reported to lie beneath a structure on the site and was characterized as in‐place but out of 
service.  Historical reports indicate that the subject historically utilized two 2,000‐gallon gasoline 
USTs and one UST of which the size and contents are unknown.  All three USTs were located in 
three different locations on the property.  Two of the USTs were reportedly removed during 1994, 
while the remaining tank was left in‐place but not in service.  A 2,000‐gal gasoline UST system 
was installed on the site during 1995 to replace the tanks removed in 1994.  This tank was closed 
through removal in June 2021.  WR has included historically reported UST information in Table B‐
1.  Historical tank locations are included on Figure 2. 

2.       Description of Release/General Assessment History 

Assessment activities competed at the site have included the following: 

 UST Closure Report (Eastern Environmental), November 1994 ‐ Soil and groundwater impacts 
were confirmed during the removal of two – 2,000‐gallon gasoline USTs (T1 and T2).  
Additionally, one orphaned UST was discovered near the corner of the rental house.  This UST 
was not closed in place or removed as it was found located partially beneath one of the onsite 
buildings.  Soil impacts were also confirmed in the vicinity of this orphaned UST.  Analytical 
results for these samples indicated TPH concentrations in excess of the NCDENR Action level. 
Analytical results ranged from 424 pm to 75,400 ppm. 
 Limited Site Assessment Report. Agra Environmental (Agra), October 2009 ‐ One 2,000‐gallon 
gasoline UST (T‐4) was identified in the former location of T‐1.  T‐4 was reportedly installed in 
1995 and uses the European Suction System.  One offsite WSW (WSW‐1) was identified 
approximately 100‐feet south of MW‐4.  Agra also installed four type II monitoring wells (MW‐
1 through MW‐4).  MW‐1 was installed adjacent to orphan UST T‐3, MW‐2 was installed 
within the former excavation of UST T‐2, MW‐3 was installed within the former excavation of 
UST T‐4, and MW‐4 was installed adjacent to the onsite dispenser island.  Soil samples 
collected during the installation of monitoring wells MW‐1 through MW‐4 revealed petroleum 
impacts exceeding soil‐to‐groundwater MSCCs.  No compounds exceeded Residential MSCCs.  
Groundwater samples collected from MW‐1 through MW‐4 revealed petroleum impacts 
greater than regulatory standards in each well and benzene was detected at a concentration 
that exceeded the GCL value in MW‐1 and MW‐2.  Benzene was also detected in WSW‐1 at 
1.1 µg/L.   
 Monitoring Report, Agra, August 2010 ‐ Monitoring wells MW‐1 through MW‐4 contained 
petroleum impacts at concentrations that exceeded the 15A NCAC 2L groundwater standards. 
Additionally, benzene was detected in MW‐1 and MW‐4 at concentrations that exceed the 
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GCL value.  Di‐isopropyl ether was detected in WSW‐1 above laboratory method detection 
limits but below 2L standards during this event.   
 Monitoring Report, Agra, January 15, 2012 ‐ Monitoring wells MW‐1 through MW‐4 contained 
petroleum impacts at concentrations that exceeded the 15A NCAC 2L groundwater standards.  
No GCL violations were reported.  WSW‐1 contained di‐isopropyl ether at 0.68 µg/L.  Agra 
determined that onsite monitoring well data exceeded the surface water standards by a factor 
of 10.  
 Groundwater Monitoring Event Letter Reports, Crawford Environmental Services (CES), July 18, 
2012 and December 27, 2012 ‐ CES completed 2 groundwater monitoring events in June 2012 
and November 2012 that included sampling the 4 monitoring wells and supply well WSW‐1.  
Analytical results revealed several contaminants above 2L standards in all four monitoring 
wells during both events.  Benzene was detected in MW‐2, and MW‐4 above GCLs during 
both sampling events.  Benzene and di‐isopropyl ether, found above laboratory method 
detection limits but below 2L standards, was detected in WSW‐1 during the June 2012 event.  
Several compounds that included benzene, MTBE, di‐isopropyl ether, and chloromethane were 
detected in WSW‐1 above laboratory method detection limits but below 2L standards during 
the December 2012 sampling event. 
 WR conducted assessment activities in 2015, which included the sampling of existing 
groundwater monitoring wells MW‐1 through MW‐4, the installation of a permanent 
groundwater monitoring well (MW‐5) on the southwestern adjacent property and the 
installation of a temporary groundwater monitoring well (TW‐6) on the western adjacent 
property.   Analytical results for groundwater monitoring wells MW‐4 and TW‐6 identified 
benzene at a concentration that exceeded its GCL.  Analytical results for groundwater 
monitoring wells MW‐1, MW‐2, and MW‐3 identified one or more targeted compounds at 
concentrations that exceeded their respective 2L Groundwater Standard.  Analytical results 
for MW‐5 did not identify targeted compounds at concentration that exceeded their 
respective 2L Groundwater Standards.   
 WR conducted assessment activities in November 2017, including sampling of monitoring 
wells and WSW‐1.  Laboratory analytical results for the groundwater sample collected from 
MW‐4 showed benzene and tert amyl alcohol at concentrations that exceeded their respective 
GCLs.  Analytical results for MW‐1, MW‐2, and MW‐3 showed one or more targeted 
compounds at concentrations that exceeded their respective 2L Standards.  Analytical results 
for MW‐5 did not indicate targeted compounds at concentrations that exceeded their 
respective 2L Standards.  Analytical data for the sample obtained from water supply well 
WSW‐1 showed the presence of toluene at a concentration of 0.639 ug/L.  This level did not 
exceed the 2L Standard for the compound.   
 A 2,000‐gal gasoline UST system was installed on the site during 1995 to replace the tanks 
removed in 1994.  This tank was closed through removal in June 2021.  Soil samples collected 
from the product line run and sidewalls of the excavated area associated this closure showed 
TPH as GRO in each of the three product line samples and a single sample from beneath the 
former pump location at levels exceeding the (current) NCDEQ Action Level of 50 mg/kg.  
Laboratory results for groundwater samples obtained from a temporary monitoring well 
installed in association with the UST closure (sample W‐1) showed several petroleum‐related 
compounds at levels exceeding their 2LStandards.  Benzene was reported in the sample from 
W‐1 at a concentration exceeding the GCL for the compound.   
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 WR completed groundwater and supply well sampling at the location during September 2021.  
Numerous targeted compounds were reported in samples obtained from MW‐1, MW‐2 and 
MW‐4.  Several compounds reported in each of these samples were in excess of their 2L 
Standards.  Benzene was reported in the sample from MW‐4 at a concentration exceeding the 
GCL for the compound.   
 WR completed installation and sampling of Type II monitoring well MW‐3R, as a replacement 
for MW‐3 which was destroyed during UST closure activities in June 2021.  This well was 
installed and sampled during December 2021.  Results for the groundwater sample collected 
from MW‐3R in December 2021 showed several targeted compounds by SM6200B.  Benzene 
was the sole compound identified at a concentration exceeding the NC 2L Standard in the well.   

3.  Brief Description of Site Characteristics 

According to the Onslow County GIS website, the ±0.25‐acre parcel is identified by parcel number 
012158 and is currently owned by Chandra Kirby‐Enslen.  The subject property formerly operated 
as Gregory Fork Variety as a retail fuel sales facility but has since transitioned to a convenience 
store (Grandma’s Country Corner) which does not store or sell fuels.  A USGS Map of the Richlands 
7.5‐minute Quadrangle is included as Figure 1 and a site map illustrating current site conditions is 
included as Figure 2.  Current site conditions are also documented in the photograph record 
included as Appendix B.   
The site is located in the Coastal Plain Physiographic Province of North Carolina.  Based on 
interpretation made from the Geologic Map of North Carolina (1985), the area is underlain by 
Comfort Member within the Castle Hayne Formation.  Soils within this formation consist of 
bryozoan‐echinoid skeletal limestone, locally dolomitized and containing solution cavities. Well 
construction records for MW‐5 indicate that area soils consist of tan fine sand (SP) with little to 
no fines; poorly sorted / well rounded grains; soft; wet.   
The Richlands 7.5‐minute topographic map indicates that the subject property is approximately 
15 feet above mean sea level.  The site and surrounding area are generally flat.  Overland flow is 
expected to move to the northwest towards an un‐named tributary of the New River within the 
White Oak River Basin.  Surface runoff is channeled through ditch lines or man‐made stormwater 
conveyances, primarily along roadway margins.   

4.       Information on Receptors/Potential Receptors 

WR did not perform a receptor update in association with the task authorization for the site; 
however, a receptor survey was performed by Agra Environmental at the property in 2009.  
According to the receptor survey, one active water supply well was identified within 1,500 feet of 
the subject site (WSW‐1 located approximately 40 feet south‐southwest of monitoring well MW‐
5).  WR had previously approached the property owner (Mrs. Honeycutt) about connecting to 
municipal water and abandoning WSW‐1.  Mrs. Honeycutt stated that she had granted NCDEQ 
permission in 2010 to connect her property to municipal water and abandon the water supply well 
(WSW‐1).  WR attempted to obtain bids from qualified plumbers for the installation of a water line 
and meter at the property in the past, however, none of the plumbing companies contacted 
responded with completed bids.   

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Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
8 

The closest mapped surface water feature is Mill Branch, a tributary to the New River, located 
approximately 950 feet west of the subject property.  This feature is surrounded by a wetland 
indexed by the US Fish & Wildlife Service, National Wetlands Inventory as a PF01A wetland: 
"Palustrine, Forested, Broad‐Leaved Deciduous, Temporary Flooded."  Additional wetland features 
identified as PF03/04B wetlands ("Palustrine, Forested, Broad‐Leaved Evergreen, Seasonally 
Saturated”) are located approximately 450‐ft south of the source location.  A shallow drainage 
ditch, typical of those present throughout eastern North Carolina, is located northwest of the 
subject property across Turtle Shell Road.  This ditch appears to flow westerly from the corner of 
Turtle Shell Road and Gregory Fork Road towards Mill Branch. It is not known whether 
groundwater discharges into this ditch.  An agricultural drainage ditch is located in fields to the 
east and northeast of the source location.  These receptors are identified in Table B‐5B and shown 
on Figure 9.   

Surface drainage through the area generally follows topography or is channeled through wet 
weather ditches running parallel to primary and secondary roadways, except where impervious 
surfaces (e.g., roadways) restrict drainage.  In these locations, drainage is channeled through man‐
made stormwater conveyances.   

WithersRavenel
Our People. Your Success. 

Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
9 

SECTION D. ASSESSMENT ACTIVITIES: MARCH 2023 

WR conducted assessment activities at the in association with TA‐01 under NCDEQ Contract 
#N70522‐C.  WR mobilized to the site on March 21 2023 for the purposes of purging and 
sampling site monitoring wells and purging and sampling supply well WSW‐1.    

D.1. GROUNDWATER SAMPLING 

Prior to the sampling of site monitoring wells as described below, WR personnel gauged each well 
with a decontaminated electronic water level indicator.  The depth to groundwater obtained in the 
gauging of site monitoring wells showed groundwater present at depths ranging from 2.64‐ft 
beneath top‐of‐casing (BTOC) in MW‐2 To 3.27‐ft BTOC in MW1.  Based on these measurements, 
groundwater appears to flow to the south through the property.  Previous assertions as to 
groundwater flow show the trends to the southeast.  Groundwater elevations measured in March 
2023 averaged 8.3‐ft higher (shallower) than those measured in September 2021 (MW‐1, MW‐2 
and MW‐4) and December 2021 (MW‐3R).  Gradient as determined on the site in March 2023 is 
depicted on Figure 3.  Groundwater elevation measurements are included in Table B‐7, while 
historical measurements are shown in Table B‐9.   

Following the gauging of wells and prior to sampling, the wells were purged of a minimum of three 
volumes of groundwater through the use of dedicated, disposable bailers as described in the 
procedures outlined in Appendix C.  Samples were decanted directly from the bailers into 
laboratory prepared sample containers holding appropriate preservative(s) as required.  The 
containers were labeled with appropriate information and the groundwater samples were 
transported in an ice‐chilled cooler under proper chain‐of‐custody to Waypoint Analytical, LLC 
(Waypoint), located in Charlotte, NC for analysis by SM6200B.  Copies of field notes associated 
with monitoring activities are included in Appendix B.   

D.2. LABORATORY RESULTS – GROUNDWATER SAMPLES 

Laboratory results for groundwater samples collected from site monitoring wells in March 2023 
indicated the following: 

 Numerous targeted compounds were reported in samples obtained from MW‐1, MW‐2 and 
MW‐4 in March 2023 at concentrations in excess of their 2L Standards.   
 No target compounds were reported in any samples at levels exceeding their respective GCLs. 
 Results for the groundwater samples collected from MW‐3R and MW‐5 did not show targeted 
compounds at concentrations above the laboratory MDL for SM6200B.   

These results are included in Table B‐4 and shown on Figure 4.  The laboratory report is included 
in Appendix A.  Isoconcentration maps depicting the estimated extents of benzene, ethylbenzene, 
toluene and total xylenes impact in groundwater are included as Figures 5, 6, 7 and 8, respectively.   

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Based on total VOC concentrations for samples collected in March 2023 compared to those 
reported in September 2021, the following reductions were observed: 

Reductions in Total VOC Concentrations (µg/L) 
Well ID Sample Date  
9/21/2021 3/21/2023 Difference 
MW‐1 54,815.04 48,636.98 ‐11.27% 
MW‐2 72,156.86 44,092.7 ‐38.89% 
MW‐3R 57.191 1.39 ‐979.57% 
MW‐4 61,432.47 41,416.44 ‐32.58% 

*Note: Data for Sample for MW‐3R from December 9, 2021 

VOC changes dating from 2009 to present are shown in the following charts:   

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Based on the data obtained for groundwater samples collected in March 2023, the lateral extent 
of groundwater impact to the southeast of the source area has essentially been defined.  Changes 
in VOC concentrations seen over time may relate to fluctuation in groundwater elevations and 
washing of contaminants through saturated soils.  Closure of a 4,000‐gal gasoline UST in June 
2021 served as a method for removal of a portion of source(s) available for leaching of 
contaminants to soil and groundwater at the location.  During closure of the UST system 
groundwater infiltrated the excavation and no contaminated soils were removed.  Although 
sidewall samples were retained from the excavated area, none of the samples were analyzed by 
Risk‐Based Corrective Action (RBCA) methods.   

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Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
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12 

D.3. SUPPLY WELL SAMPLING 

WR personnel obtained a supply well sample from WSW‐1, located to the southwest of the source 
area following purging.  By way of purging, WR opened a spigot attached to the well to energize 
the well pump, and allowed the pump to run continuously for a minimum of ten‐minutes time.  
Following purging, samples were decanted directly from the sampling point into laboratory 
prepared sample containers holding appropriate preservative(s) as required.  The containers were 
labeled with appropriate information and the groundwater samples were transported in an ice‐
chilled cooler under proper chain‐of‐custody to Waypoint for analysis by SM6200B.   

D.4. LABORATORY RESULTS – SUPPLY WELL SAMPLE 

Laboratory results for supply well sample collected from WSW‐1 in March 2023 indicated the 
following: 

 No compounds were reported in the sample from WSW‐1 at concentrations exceeding the 
laboratory MDL for SM6200B.   

WithersRavenel
Our People. Your Success. 

Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
13 

SECTION E.  CONCLUSIONS AND RECOMMENDATIONS 

This report documents the results of field activities conducted at the site for TA‐02, which included 
the installation and sampling of monitoring well MW‐3R.  Conclusions based on observations, 
analytical data and research relating to the release at the site combined with historical information 
include the following: 

 The site is currently operating as a convenience store but does not store or sell fuels.    
 The surrounding area is developed primarily as rural residential properties.   
 A single supply well (WSW‐1) is located approximately 40‐ft southwest of MW‐5 and 135‐ft 
southwest of the source area.  This well is the sole potable well located within 1,000‐ft of the 
source. 
 The site and surrounding properties are provided potable water through the Onslow Water 
and Sewer Authority (OWASA).   
 The NC Source Water Assessment Program (SWAP) does not identify any community supply 
wells within a ½‐mile radius of the site.   
 OWASA Well #12 and its’ associated wellhead protection area is located approximately 1‐mile 
southeast of the site.   
 Numerous targeted compounds were reported in samples obtained from MW‐1, MW‐2 and 
MW‐4 obtained in March 2023 in excess of their 2L Standards. 
 No compounds were reported in any samples at concentrations exceeding their respective 
GCLs.   
 Based on total VOC concentrations for samples collected in March 2023 compared to those 
reported in September/December 2021, general declines were observed within each well.     
 Based on the data obtained for groundwater samples obtained from site monitoring wells in 
March 2023, the lateral extent of groundwater impact to the southeast of the source area 
has essentially been defined.   
 Laboratory results for the sample obtained from WSW‐1 in March 2023 did not show the 
presence of targeted compounds by SM6200B.   

Based on the results of assessment and monitoring activities conducted at the site in association 
with this TA and the setting of the facility, WR recommends the following: 

 Complete additional efforts to facilitate the installation of a water line connection to the 
property serviced by WSW‐1 (513 Gregory Fork Road). 
 Following installation of a water line at 513 Gregory Fork Road (if completed), abandon supply 
well WSW‐1.   
 If funding is available, consider the completion of a targeted injection of a reactive oxidizing 
compound or other amendment such as BOS200 in source area groundwater to induce 
reduction of 2L exceedances. 
 Continued annual groundwater monitoring. 
 Continued sampling of WSW‐1 if in‐use. 

WithersRavenel
Our People. Your Success. 

Former Gregory Fork Variety (TF#11814) WR Project # 23‐0307‐CG 
Monitoring Report May 2023 
14 

WR appreciates the opportunity to be of service in the completion of these assessment activities.  
Should you have questions, comments, or require additional information, please contact WR at 
your earliest convenience. 

Cordially, 
WithersRavenel 
  Kevin B. Buchanan G. Matthew James, PG 
Staff Environmental Scientist III Director of Geosciences 

FIGURES 

KBB
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SUBJECT SITE
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GREGORY FORK VARIETYINCIDENT #11814510 GREGORY FORK ROADRICHLANDS, ONSLOW COUNTY, NC
GENERAL LOCATION MAP
WithersRavenel
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96.9 KBBMJDRAWN BY:04/11/202323-0307-CG3SCALE:FIGURE NO.:PROJECT NO.:DATE:APPROVED BY:GREGORY FORK VARIETYINCIDENT #11814510 GREGORY FORK ROADRICHLANDS, ONSLOW COUNTY, NCGROUNDWATER HYDRAULICGRADIENT MAP (ft)MARCH 21, 2023WithersRavenelEngineers | Planners | Surveyors115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com1"=20 'GRAPHIC SCALE
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600600KBBMJDRAWN BY:04/11/202323-0307-CG7SCALE:FIGURE NO.:PROJECT NO.:DATE:APPROVED BY:GREGORY FORK VARIETYINCIDENT #11814510 GREGORY FORK ROADRICHLANDS, ONSLOW COUNTY, NCWithersRavenelEngineers | Planners | Surveyors115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com1"=20 'GROUNDWATER TOLUENEISOCONCENTRATION MAP (ug/L)MARCH 2023GRAPHIC SCALE
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500KBBMJDRAWN BY:04/11/202323-0307-CG8SCALE:FIGURE NO.:PROJECT NO.:DATE:APPROVED BY:GREGORY FORK VARIETYINCIDENT #11814510 GREGORY FORK ROADRICHLANDS, ONSLOW COUNTY, NCWithersRavenelEngineers | Planners | Surveyors115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com1"=20 'GROUNDWATER TOTAL XYLENESMARCH 2023GRAPHIC SCALE
1 inch = 20 ft.
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)DRAINAGE DITCH (AGRICUTURAL)KBBMJDRAWN BY:04/11/202323-0307-CG9SCALE:FIGURE NO.:PROJECT NO.:DATE:APPROVED BY:GREGORY FORK VARIETYINCIDENT #11814510 GREGORY FORK ROADRICHLANDS, ONSLOW COUNTY, NCRECEPTOR MAPWithersRavenelEngineers | Planners | Surveyors115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com1"=200 'GRAPHIC SCALE
1 inch = 200 ft.
0 200100 400

TABLES 

UST IDNumberCurrent/LastContents*PreviousContents*Capacity(in gallons)ConstructionDetails**TankDimensions (diameter x length) (ft)Description ofAssociatedPiping & PumpsDate of TankInstallationStatus ofUST***Was release associated with UST System? (Y/N)1 Gasoline N/A 2,000 Unknown 12' x 64" Unknown 1978Permanently Closed By Removal(10-17-1994)Y2 Gasoline N/A 2,000 Unknown 12' x 64" Unknown 1978Permanently Closed By Removal(November 1994)Y3 Unknown N/A Unknown Unknown Unknown Unknown1978 (assumed)Reportedly in-place but out of serviceY4 Gasoline N/A 2,000 Unknown 12' x 64" Unknown 1995Permanently Closed By Removal(June 2021)YAST IDNumberCurrent/LastContents*PreviousContents*Capacity(in gallons)ConstructionDetails**TankDimensions (diameter x length) (ft)Description ofAssociatedPiping & PumpsDate of TankInstallationStatus ofAST***Was release associated with AST System? (Y/N)N/A N/A N/A N/A N/A N/A N/A N/A N/A N/AIncidentNumberMaterialReleasedDateofRelease11814 Gasoline UnknownNotes:1.) WR is not aware of any ASTs associated with the subject site.* Gasoline (leaded or unleaded), Diesel, used oil, waste oil, aviation fuel, etc. or pesticides, non-halogenated or halogenated solvents, etc** Fiberglass (single- or double-walled), steel (single- or double-walled), steel with FRP (single- or double-walled), steel with liner, other, unknown*** Richlands, Onslow CountyIncident Number: 11814Description of ReleaseCurrently operational, not in use or temporarily closed (specify date), permanently closed in place (specify date), permanently closed by removal Table B-1Site History: UST/AST System & Other Release InformationGregory Fork VarietyPetroleum impacted soils were encountered during the removal of two 2,000 gallon USTs (T-1 and T-2) on Octobet 17, 1994. During UST removal activites, a third orphaned UST (T-3) was also encountered. Soil impacts were also detected in the vicinity of the third UST which was not removed during the 1994 closure activites. 510 Gregory Fork RoadPage 1 of 1
Calculated3030CAcetoneBenzenen-Butylbenzenesec-Butylbenzenetert-ButylbenzeneChloromethane1,2-Dibromoethane (EDB)1,2-Dichloroethane 1,2-DichloropropaneDi-isopropyl ether (IPE)EthylbenzeneIsopropylbenzenep-Isopropyltoluene2-Butanone (MEK)4-Methyl-2-pentanone (MIBK)Methyl tert-butyl etherNaphthalenen-PropylbenzeneStyreneToluene1,2,3-Trichloropropane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal XyleneEthanolEthyl tert-butyl etherTert-amyl AlcoholTert-amyl methyl etherTert-butyl alcoholTert-butyl fromateC5-C8 AliphaticsC9-C12 Aliphatics / C9-C18 AromaticsC9-C22 AromaticsC19-C36 Aliphatics2-4 DimethylphenolNaphthalenePhenolBis (2-Ethylhexyl) PhthalateTotal Lead67-64-1 71-43-2 104-51-8 135-98-8 98-06-6 74-87-3 106-93-4 107-06-2 78-87-5 108-20-3 100-41-4 98-82-8 99-87-6 78-93-3 108-10-1 1634-04-4 91-20-3 103-65-1 100-42-5 108-88-3 96-18-4 95-63-6 108-67-8 NA 64-17-5 637-92-3 75-85-4 994-05-8 75-65-0 762-75-4 NA NA NA NA 105-67-9 91-20-3 108-95-2 117-81-7 7439-92-18/27/2009NR9,460NR NR NR NR ND ND NR1,300 4,030 130NR NR NR188 842 323 484 47,000ND2,720 616 20,770NR NR NR NR NR NR84,400 77,300 8,580ND ND318ND ND20.57/16/2010NR5,530NR NR NR NR ND ND NR751 2,700 74.1NR NR NR62.5 671 170 327 36,800ND1,900 379 16,450NR NR NR NR NR NR65,000 103,140 2,160ND57.5 375 9.8 46.8NA12/1/2011NR3,750NR NR NR NR ND ND NR355 1,650ND NR NR NR ND ND ND ND24,500ND1,470 430 15,780NR NR NR NR NR NR69,900 70,530 566ND44.6 169ND14.4NA6/20/2012ND4,210ND NR ND ND ND ND NR814 2,330ND NR NR NR200 713 168ND32,100ND2,390 593 21,320NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA11/28/2012ND6,10025NR ND ND ND ND NR700 3,500 90NR NR NR230 870 230 580 48,000ND2,800 680 22,600NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA3/24/2015ND2,700ND ND ND ND ND ND ND330 2,900 70ND ND ND150 530 170 200 38,000ND2,000 500 20,800NR NR NR NR NR NR NA NA NA NA NA NA NA NA8.311/16/2017<125002680<250 <250 <250 <625 <250 <250 <250216 3110<250 <250 <2500 <2500107 726 181<25040200<6252530 700 22,020<25000 <250 <12500 <250 <1250 <5000 NA NA NA NA NA NA NA NA NA9/21/2021<100954 5.76 8.59<20.0 <5.00 <5.00 <5.00 <5.00207 2780 69.6 8.09<50.073.6 114 800 161 88.4 25600<5.002720 755 20,500<2000 <100 <100 <100 <100 <100 NA NA NA NA NA NA NA NA NA3/21/2023<100729 13.9 10.4<20.0 <5.00 <5.00 <5.00 <5.00496 3180 88.2 7.38<50.053.1 1180 789 219 176 19800<5.002170 605 19,100NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA8/27/2009NR7,790NR NR NR NR ND ND NR1,660 3,610 99.1NR NR NR1,190 1,190 287 261 39,800ND2,810 638 20,870NR NR NR NR NR NR78,300 77,035 9,370ND ND378ND ND23.97/16/2010NR4,490NR NR NR NR ND ND NR680 2,690 69.8NR NR NR390 788 153 148 25,700ND1,730 377 17,000NR NR NR NR NR NR46,900 82,610 1,210ND20.8 495ND22.5NA12/1/2011NR4,150NR NR NR NR ND ND NR897 1,770ND NR NR NR1,250 566 108ND17,800ND1,420 393 12,210NR NR NR NR NR NR59,500 72,220 6,768ND ND443ND ND NA6/20/2012ND5,490ND NR ND ND ND ND NR553 3,150 74.4NR NR NR368 1,030 189ND31,100ND2,330 511 17,820NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA11/28/2012ND5,10017NR ND ND ND ND NR420 3,900ND NR NR NR210 860 240 390 42,000ND2,700 610 21,100NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA3/24/2015ND2,900ND ND ND ND ND ND ND190 3,400 85ND ND ND ND720 240 120 26,000ND2,200 480 15,600NR NR NR NR NR NR NA NA NA NA NA NA NA NA ND11/16/2017<125001950<250 <250 <250 <625 <250 <250 <250 <2503720 93.4<250 <2500 <2500 <250857 261 196 35900<6252520 538 19,970<25000 <250 <12500 <250 <1250 <5000 NA NA NA NA NA NA NA NA NA9/21/2021<100729 16.3 11.6<20.0 <5.00 <5.00 <5.00 <5.0040.2 3850 95.3 7.46<50.0 <10.0 <10.02380 233 262 38900<5.003340 632 21,700<2000 <100 <100 <100 <100 <100 NA NA NA NA NA NA NA NA NA3/21/2023<10001250<50.0<50.0 <200 <50.0 <50.0 <50.0 <50.097.6 3350 79.1<50.0<500 <100 <100908 195 106 21000<50.02110 477 14,500NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA8/27/2009NR1,140NR NR NR NR ND ND NR604 921 34.4NR NR NR269 211 97.3ND26.1ND524 49 710.3NR NR NR NR NR NR3,700 7,917 1,734ND ND80.9ND ND ND7/16/2010NR316NR NR NR NR ND ND NR536 450 18.6NR NR NR209 149 46.7ND3.7ND31 3 49.7NR NR NR NR NR NR1,470 4,610 757ND ND15.1ND ND NA12/1/2011NR911NR NR NR NR ND ND NR692 412 13.3NR NR NR410 72.2 26.5ND24.9ND105 18 349.7NR NR NR NR NR NR3,880 3,700 116ND ND63.9ND ND NA6/20/2012ND2,040ND NR ND ND ND2.6NR1,740 980 41.6NR NR NR1,160 244 102ND113ND74ND223.2NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA11/28/2012ND2,600ND NR44ND ND ND NR2,000 1,400 49NR NR NR1,200ND120ND140ND280 39 760NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA3/24/2015ND770ND ND ND ND ND ND ND660 620 32ND ND ND300 160 74ND51ND31 5.2 340NR NR NR NR NR NR NA NA NA NA NA NA NA NA ND11/16/2017<25013.5<5 <5 <5 <12.5 <5 <5 <5310 3.33<5 <5 <50 <50129 23.8<5 <53.51<12.5 <5 <5 <10 <500 <5 <25042.1 23.2<100 NA NA NA NA NA NA NA NA NA12/9/2021<10.04.42<0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.50015.7 2.36 1.4<0.500 <5.00 <1.003.5 2.67<0.500 <0.500<0.500<0.5000.971<0.50026.2<200 NR NR NR NR NR NA NA NA NA NA NA NA NA NA3/21/2023<10.0<0.500<0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.5001.39<0.500<0.500 <0.500 <5.00 <1.00<1.00 <1.00<0.500 <0.500<0.500<0.500 <0.500 <0.500 <0.500 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA8/27/2009NR4,580NR NR NR NR ND ND NR2,940 1,270 42.1NR NR NR3,140 446 148 80.2 13,500ND1,150 264 5,350NR NR NR NR NR NR42,700 29,095 5,450ND ND250ND ND76.27/16/2010NR9,550NR NR NR NR3.1ND NR6,080 1,910 54.8NR NR NR8,510 608 152 216 22,200 6.8 1,220 358 11,510NR NR NR NR NR NR62,700 61,910 881ND75.5 265 36ND NA12/1/2011NR2,970NR NR NR NR ND ND NR1,240 401ND NR NR NR1,210 236 29.8ND7,100ND687 218 5,820NR NR NR NR NR NR37,400 37,300 4,581ND ND188ND ND NA6/20/2012ND9,050ND NR ND ND ND51.5NR6,440 1,350 32.6NR NR NR8,400 1,020 91.4ND26,600ND1,990 501 14,020NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA11/28/2012 5207,900ND NR ND NDNDND NR4,900 1,400 34NR NRNR4,500ND95ND21,000ND1,600 410 10,800NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA3/24/2015ND9,700ND ND ND ND ND38ND7,600 2,000 53ND ND ND4,500 550 150 120 26,000ND1,500 370 11,500NR NR NR NR NR NR NA NA NA NA NA NA NA NA6.111/16/2017<100056809.22<20 <20 <50 <20 <20 <203140 1400 39.2 7.18<200 <2001430 575 107<2015800<501330 330 7,980<2000 <204340612 196<400 NA NA NA NA NA NA NA NA NA9/21/2021 1939200<5.00 <5.00 <20.0 <5.00 <5.0031.8 5.28 5670 1740 33 7.59 86.7 125 2580 718 81.1<5.0024900<5.001540 504 14,200<2000 <100 <1001470 541<100 NA NA NA NA NA NA NA NA NA3/21/2023<1004610 12.8 9.35<20.0 <5.00 <5.00 <5.00 <5.001240 3030 73.8 6.09<50.0 <10.0361 708 198 26.4 14600<5.001850 471 14,200NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA3/24/2015ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR NA NA NA NA NA NA NA NA9.511/16/2017<50 <1 <1 <1 <1 <2.5 <1 <1 <1 <1 <1 <1 <1 <10 <10 <1 <5 <1 <10.572<2.5 <1 <1 NR <100 <15.15<1 <5 <20 NA NA NA NA NA NA NA NA NA9/21/2021<10.0 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <200 <10.0 <10.0 <10.0 <10.0 <10.0 NA NA NA NA NA NA NA NA NA3/21/2023<10.0 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NATW-6 3/24/2015ND5200ND ND ND ND ND ND ND1,300 2,100 44ND ND ND1,100 320 120 18 15,000ND1,000 230 9,400NR NR NA NA NA NA NA NA NA NA NA NA NA7.8W-1* 6/23/2021NR8,100NR NR NR NR NR NR NR2,100 3,300NRNR NR NR560NR460NR40,000NR1,900 770NR NR NR NR NR NR NR23800 3150 5100NR NR NR NR NR ND8/27/2009NR1.1NR NR NR NR ND ND NR2.3ND ND NR NR NR ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR ND112ND ND ND ND ND ND ND7/16/2010NR ND NR NR NR NR ND ND NR1ND ND NR NR NR ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR ND ND ND ND ND ND ND ND NA12/1/2011NR ND NR NR NR NR ND ND NR0.68ND ND NR NR NR ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR ND ND ND ND ND ND ND ND NA6/20/2012ND1ND NR ND ND ND ND NR2.6ND ND NR NR NR ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA11/28/2012ND0.9ND NR ND0.26ND ND NR2.5ND ND NR NR NR0.27ND ND ND ND ND ND ND ND NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA3/24/2015ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR NA NA NA NA NA NA NA NA NA11/16/2017<50 <1 <1 <1 <1 <2.5 <1 <1 <1 <1 <1 <1 <1 <10 <10 <1 <5 <1 <10.639<2.5 <1 <1 <2 <100 <1 <50 <1 <5 <20 NA NA NA NA NA NA NA NA NA9/21/2021<10.0 <0.500 <0.500 <0.500 <2.000.784<0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500<0.500<0.500 <0.500 <0.500 <0.500 <200 <10.0 <10.0 <10.0 <10.0 <10.0 NA NA NA NA NA NA NA NA NA3/21/2023<10.0 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500<0.500<0.500 <0.500 <0.500 <0.500 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA6000 1 70 70 70 3 0.02 0.4 0.6 70 600 70 25 4000 100 20 6 70 70 600 0.005 400 400 500 4000 47 40 128 10 40 400 700 200 10,000 100 6 30 3 156,000,000 5,000 5,900 8,800 14,750 3,000 50 400 600 70,000 80,000 30,500 11,700 4,000,000 100,000 20,000 6,000 26,100 70,000 260,000 NL 28,500 24,10050,000 4,000,000 47,000 4,000 12,800 10000 4000 NL NL NL NL 100,000 6,000 30,000 135 15,000Notes:1)2)3)4)5)6)NL= Not ListedNA= Compound Not Analyzed for by Laboratory.NR= Compound Not Reported By Previous ConsultantsND= Compound Not Detected.Result= Result Exceeds Laboratory Detection LimitsResult= Result Exceeds 2L StandardResult= Result Exceeds GCL ValueGCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater. (Comprehensive Tables for Corrective Action Guidelines, September 2022)* Sample "W-1" collected on June 23, 2021 from a temporary well installed at the former location of UST #4.MADEP -- VPH/EPH EPA - 625Analytical Method6200B - Volatile Organic CompoundsSampleIDDateCollectedNC 2L Standard WSW-1MW-3All results provided in ug/L (micrograms per liter) or parts per billion.Gregory Fork VarietyTABLE B-4ARichlands, Onslow CountyIncident Number: 11814SUMMARY OF GROUNDWATER ANALYTICAL RESULTS510 Gregory Fork RoadOxygenatesWell MW-3 destroyed during closure of UST #4 during June 2021.MW-5MW-4MW-3RMW-2MW-1GCLs for GroundwaterCompounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. NC 2L Standard - North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L. (Comprehensive Tables for Corrective Action Guidelines, September 2022)Page 1 of 1
CalculatedBenzenen-Butylbenzenesec-ButylbenzeneDi-isopropyl ether (IPE)EthylbenzeneIsopropylbenzenep-Isopropyltoluene4-Methyl-2-pentanone (MIBK)Methyl tert-butyl etherNaphthalenen-PropylbenzeneStyreneToluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal Xylene71-43-2 104-51-8 135-98-8 108-20-3 100-41-4 98-82-8 99-87-6 108-10-1 1634-04-4 91-20-3 103-65-1 100-42-5 108-88-3 95-63-6 108-67-8 NAMW-1 3/21/2023 729 13.9 10.4 496 3180 88.2 7.38 53.1 1180 789 219 176 19800 2170 605 19,100MW-2 3/21/2023 1250<50.0<50.097.6 3350 79.1<50.0<100 <100908 195 106 21000 2110 477 14,500MW-3R 3/21/2023<0.500<0.500 <0.5001.39<0.500<0.500 <0.500 <1.00<1.00 <1.00<0.500 <0.500<0.500<0.500 <0.500 <0.500MW-4 3/21/2023 4610 12.8 9.35 1240 3030 73.8 6.09<10.0361 708 198 26.4 14600 1850 471 14,200MW-5 3/21/2023<0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500WSW-1 3/21/2023<0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <1.00 <1.00 <0.500 <0.500<0.500<0.500 <0.500 <0.5001 70 70 70 600 70 25 100 20 6 70 70 600 400 400 5005,000 5,900 8,800 70,000 80,000 30,500 11,700 100,000 20,000 6,000 26,100 70,000 260,000 28,500 24,100 50,000Notes:1)2)3)4)Result= Result Exceeds Laboratory Detection LimitsResult= Result Exceeds 2L StandardResult= Result Exceeds GCL ValueGCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater. (Comprehensive Tables for Corrective Action Guidelines, September 2022)NC 2L Standard GCLs for GroundwaterAll results provided in ug/L (micrograms per liter) or parts per billion.Compounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. NC 2L Standard - North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L. (Comprehensive Tables for Corrective Action Guidelines, September 2022)Analytical MethodSampleIDDateCollectedTABLE B-4BSUMMARY OF GROUNDWATER ANALYTICAL RESULTS - MARCH 2023Gregory Fork VarietyIncident Number: 11814510 Gregory Fork RoadRichlands, Onslow CountyPage 1 of 1
Easting NorthingWSW-1 4421006496456513 Gregory Fork Road Richlands, NC 28574Blanche B. Honeycutt46 Denning Road, Benson, NC 27504Potable Unk Unk 122.5 Cross Gradient 2426896.62 414801.27TABLE B-5APUBLIC & PRIVATE WATER SUPPLY WELL INFORMATIONGregory Fork Variety510 Gregory Fork RoadRichlands, Onslow CountyProperty Owner Address Well UseWell Screen Interval(feet)Well Distance from Source Area(feet)Well Coordinates(NC State Plane NAD 83 Feet) 4.) WR has not performed a receptor survey associated with the subject release.Incident Number: 11814Location Relative to Groundwater FlowWell ID Property AddressParcelNumberNotes: 3.) Well distance from source area values was calculated by WR based on well locations provided in previous consultants reports. 2.) Information regarding the water supply well's use and location was obtained from previous consultant's reports. 1.) Well location addresses and property owner information was obtained from the Onslow County GIS Department. Data current as of March 13, 2023.Well Depth(feet)Property OwnerPage 1 of 1
Easting Northing1 PF03/4B WetlandWest-Northwest of Subject PropertyN/A N/A 455Cross/Down-Gradient2427043.2239 414394.46972 PF01A WetlandSouth of Subject PropertyN/A N/A 635 Up-Gradient 2426560.553 415279.5939Notes: 1)2)3)4)4)Incident Number: 11814Location Relative to Groundwater FlowUsageDescriptionDistance from Source Area(feet)TABLE B-5BADDITIONAL RECEPTOR INFORMATIONGregory Fork Variety510 Gregory Fork RoadRichlands, Onslow CountyReceptor IDLocation of Significant Points(NC State Plane NAD 83 Feet)LocationWetlands information from the US Fish & Wildlife Service, National Wetlands InventorySurface Water and Wetlands Mapper (09/22/2021).WR has not performed a receptor survey associated with the subject release.PF03/4B Wetland: "Palustrine, Forested, Broad-Leaved Evergreen, Seasonally Saturated."PF01A Wetland: "Palustrine, Forested, Broad-Leaved Deciduous, Temporary Flooded."Location of sinificant points are closest approach of wetland feature to source area.ContactInformationPage 1 of 1
Easting NorthingMW-1 7/16/2010 2 7.78 0 - 3 3 - 8 99.85 3/21/2023 3.27 - 96.58 2427050.28 414849.40MW-2 7/16/2010 2 8.22 0 - 3 3 - 8 100.00 3/21/2023 2.64 - 97.36 2427015.85 414878.02MW-3 7/16/2010 2 8.35 0 - 3 3 - 8 99.11 --- --- - --- 2427036.23 414830.14MW-3R 12/9/2021 2 13.00 0 - 3 3 - 13 99.94 3/21/2023 3.14 - 96.80 2427084.22 414801.21MW-4 7/16/2010 2 8.41 0 - 3 3 - 8 100.34 3/21/2023 3.25 - 97.09 2427012.83 414841.18MW-5 3/24/2015 2 14.00 0 - 4 4 - 14 99.49 3/21/2023 2.71 - 96.78 2426936.21 414812.805.) Well MW-3 destroyed during closure of UST #4 during June 2021.2.) Top-of-Casing elevations for MW-1 through MW-4 were determined by previous consultants and are relative to an approximate site elevation of 100.0 feet above mean sea level.Well Casing Depth (feet)Gregory Fork VarietyRichlands, Onslow County3.) Top-of-Casing elevations for MW-5 and TW-6 were determined by W&R by using MW-2 top-of-casing as an arbitray benchmark of 100.0 feet above mean sea level.1.) Well construction information for MW-1 through MW-4 was obtained from Crawford Environmental Services 2012 Report. MW-2 was assigned an aribtrary elevation of 100.0 ft.Total Depth (feet)4.) Groundwater elevation calculated by: (Top-of-Casing - Depth-to-Water) + (Free Product Thickness x 0.8581)Incident Number: 11814Well IDWell Coordinates(NC State Plane NAD 83 Feet)Notes: Date InstalledGroundwaterElevation (feet)Depth-to-Water from Top-of-Casing(feet)TABLE B-7510 Gregory Fork RoadMONITORING & REMEDIATION WELL CONSTRUCTION INFORMATIONWell Casing Diameter(inches)Free Product Thickness(feet)Screened Interval (feet)Top-of-Casing Elevation (feet)Date MeasuredPage 1 of 1
Well ID
Screened
Interval
(feet)
Top-of-Casing
Elevation
(feet)
Date Water Level
Measured
Depth-to-Product
(feet)
Depth-to-Water
Uncorrected
(feet)
Free Product
Thickness
(feet)
Depth-to-Water
Corrected
(feet)
Groundwater
Surface
Elevation
(feet)
8/27/2009 --- 2.75 --- 2.75 97.10
7/16/2010 --- 4.64 --- 4.64 95.21
12/1/2011 --- 3.77 --- 3.77 96.08
6/20/2012 --- 3.61 --- 3.61 96.24
11/28/2012 --- 3.57 --- 3.57 96.28
3/24/2015 --- 2.10 --- 2.10 97.75
11/16/2017 --- 3.76 --- 3.76 96.09
9/21/2021 --- 5.15 --- 5.15 94.70
3/21/2023 --- 3.27 --- 3.27 96.58
8/27/2009 --- 2.65 --- 2.65 97.35
7/16/2010 --- 3.69 --- 3.69 96.31
12/1/2011 --- 3.03 --- 3.03 96.97
6/20/2012 --- 3.30 --- 3.30 96.70
11/28/2012 --- 3.05 --- 3.05 96.95
3/24/2015 --- 1.94 --- 1.94 98.06
11/16/2017 --- 3.20 --- 3.20 96.80
9/21/2021 --- 4.61 --- 4.61 95.39
3/21/2023 --- 2.64 --- 2.64 97.36
8/27/2009 --- 2.70 --- 2.70 96.41
7/16/2010 --- 4.54 --- 4.54 94.57
12/1/2011 --- 4.24 --- 4.24 94.87
6/20/2012 --- 3.32 --- 3.32 95.79
11/28/2012 --- 3.32 --- 3.32 95.79
3/24/2015 --- 1.96 --- 1.96 97.15
11/16/2017 --- 3.16 --- 3.16 95.95
9/21/2021 --- --- --- --- ---
12/9/2021 --- 6.00 --- 6.00 93.94
3/21/2023 --- 3.14 --- 3.14 96.80
8/27/2009 --- 3.00 --- 3.00 97.34
7/16/2010 --- 4.38 --- 4.38 95.96
12/1/2011 --- 3.42 --- 3.42 96.92
6/20/2012 --- 3.37 --- 3.37 96.97
3/24/2015 --- 3.30 --- 3.30 97.04
11/28/2012 --- 2.02 --- 2.02 98.32
11/16/2017 --- 3.43 --- 3.43 96.91
9/21/2021 --- 4.89 --- 4.89 95.45
3/21/2023 --- 3.25 --- 3.25 97.09
3/24/2015 --- 1.68 --- 1.68 97.81
11/16/2017 --- 2.83 --- 2.83 96.66
9/21/2021 --- 4.55 --- 4.55 94.94
3/21/2023 --- 2.71 --- 2.71 96.78
TW-6 0 - 6 98.53 3/24/2015 --- NM --- NM NM
99.94
MW-3
99.853 - 8
MW-3R
MW-4
MW-5 4 - 14
3 - 8
99.49
100.34
4.) Groundwater elevation calculated by: (Top-of-Casing - Depth-to-Water) + (Free Product Thickness x 0.8581)
3 -13
TABLE B-9
CURRENT & HISTORICAL GROUNDWATER ELEVATIONS & FREE PRODUCT THICKNESS
Gregory Fork Variety
510 Gregory Fork Road
Richlands, Onslow County
Incident Number: 11814
3 - 8 99.11
MW-1
MW-2 3 - 8 100.00
5.) Well MW-3 destroyed during closure of UST #4 during June 2021.
6.) NM = Not Measured
1.) Well construction information for MW-1 through MW-4 was obtained from Crawford Environmental Services 2012 Report. MW-2 was assigned an aribtrary
elevation of 100.0 ft.
2.) Top-of-Casing elevations for MW-1 through MW-4 were determined by previous consultants and are relative to an approximate site elevation of 100.0 feet
above mean sea level.
3.) Top-of-Casing elevations for MW-5 and TW-6 were determined by W&R by using MW-2 top-of-casing as an arbitray benchmark of 100.0 feet above mean sea
level.
Notes:
Page 1 of 1

APPENDIX A 

LABORATORY ANALYTICAL REPORT & CHAIN OF CUSTODY 

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.

4/10/2023
Withers & Ravenel Kevin Buchanan
115 Mackenan Dr. BUILDING 117 Cary, NC, 27511
Ref: Analytical Testing
Lab Report Number: 23-083-0100 Client Project Description: Gregory Fork Variety
23-0307-CG
Dear Kevin Buchanan:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 3/24/2023 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 42
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202337735State ProgramNorth Carolina
12/31/2023402State ProgramNorth Carolina
07/31/202399012State ProgramSouth Carolina
12/31/202299012State ProgramSouth Carolina
Page 1 of 1 00016/23-083-0100
Page 2 of 42
Report Number:
Sample Summary Table
Client Project Description:
23-083-0100
Gregory Fork Variety
23-0307-CG
Lab No Client Sample ID Matrix Date Collected Date Received
03/21/2023 09:00Aqueous 92120 MW-1 03/24/2023
03/21/2023 08:30Aqueous 92121 MW-2 03/24/2023
03/21/2023 09:30Aqueous 92122 MW-3R 03/24/2023
03/21/2023 10:00Aqueous 92123 MW-4 03/24/2023
03/21/2023 10:30Aqueous 92124 MW-5 03/24/2023
03/21/2023 11:00Aqueous 92215 WSW-1 03/24/2023
Page 3 of 42
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-083-0100
Report Limit
Project:Gregory Fork Variety
V 92120MW-1
729 03/31/2023 20:216200BBenzeneµg/L 5.00
13.9 03/31/2023 20:216200Bn-Butylbenzene µg/L 5.00
10.4 03/31/2023 20:216200Bsec-Butyl benzene µg/L 5.00
496 03/31/2023 20:216200BDi-Isopropyl Ether (DIPE)µg/L 5.00
H318004/06/2023 23:106200BEthylbenzeneµg/L 500
49.1 03/31/2023 20:216200B2-Hexanone µg/L 10.0
88.2 03/31/2023 20:216200BIsopropylbenzeneµg/L 5.00
7.38 03/31/2023 20:216200B4-Isopropyl toluene µg/L 5.00
H118004/06/2023 23:106200BMethyl tert-butyl ether (MTBE)µg/L 1000
53.1 03/31/2023 20:216200B4-Methyl-2-Pentanone µg/L 10.0
789 03/31/2023 20:216200BNaphthaleneµg/L 10.0
219 03/31/2023 20:216200Bn-Propylbenzene µg/L 5.00
176 03/31/2023 20:216200BStyreneµg/L 5.00
H1980004/06/2023 23:106200BTolueneµg/L 500
H217004/06/2023 23:106200B1,2,4-Trimethylbenzene µg/L 500
605 03/31/2023 20:216200B1,3,5-Trimethylbenzene µg/L 5.00
H652004/06/2023 23:106200Bo-Xylene µg/L 500
H1260004/06/2023 23:106200Bm,p-Xylene µg/L 1000
H1910004/06/2023 23:106200BXylene (Total)µg/L 500
V 92121MW-2
1250 03/31/2023 21:156200BBenzeneµg/L 50.0
97.6 03/31/2023 21:156200BDi-Isopropyl Ether (DIPE)µg/L 50.0
3350 03/31/2023 21:156200BEthylbenzeneµg/L 50.0
79.1 03/31/2023 21:156200BIsopropylbenzeneµg/L 50.0
908 03/31/2023 21:156200BNaphthaleneµg/L 100
195 03/31/2023 21:156200Bn-Propylbenzene µg/L 50.0
106 03/31/2023 21:156200BStyreneµg/L 50.0
H2100004/06/2023 22:466200BTolueneµg/L 500
2110 03/31/2023 21:156200B1,2,4-Trimethylbenzene µg/L 50.0
477 03/31/2023 21:156200B1,3,5-Trimethylbenzene µg/L 50.0
4220 03/31/2023 21:156200Bo-Xylene µg/L 50.0
10300 03/31/2023 21:156200Bm,p-Xylene µg/L 100
14500 03/31/2023 21:156200BXylene (Total)µg/L 50.0
V 92122MW-3R
1.39 03/31/2023 18:056200BDi-Isopropyl Ether (DIPE)µg/L 0.500
Page 4 of 42
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-083-0100
Report Limit
Project:Gregory Fork Variety
V 92123MW-4
H461004/06/2023 21:576200BBenzeneµg/L 50.0
12.8 03/31/2023 20:486200Bn-Butylbenzene µg/L 5.00
9.35 03/31/2023 20:486200Bsec-Butyl benzene µg/L 5.00
H124004/06/2023 21:576200BDi-Isopropyl Ether (DIPE)µg/L 50.0
H303004/06/2023 21:576200BEthylbenzeneµg/L 50.0
73.8 03/31/2023 20:486200BIsopropylbenzeneµg/L 5.00
6.09 03/31/2023 20:486200B4-Isopropyl toluene µg/L 5.00
361 03/31/2023 20:486200BMethyl tert-butyl ether (MTBE)µg/L 10.0
708 03/31/2023 20:486200BNaphthaleneµg/L 10.0
198 03/31/2023 20:486200Bn-Propylbenzene µg/L 5.00
26.4 03/31/2023 20:486200BStyreneµg/L 5.00
H1460004/06/2023 22:216200BTolueneµg/L 500
H185004/06/2023 21:576200B1,2,4-Trimethylbenzene µg/L 50.0
471 03/31/2023 20:486200B1,3,5-Trimethylbenzene µg/L 5.00
H382004/06/2023 21:576200Bo-Xylene µg/L 50.0
H1040004/06/2023 21:576200Bm,p-Xylene µg/L 100
H1420004/06/2023 21:576200BXylene (Total)µg/L 50.0
Page 5 of 42

Client: Withers & Ravenel CASE NARRATIVE
Project: Gregory Fork Variety Lab Report Number: 23-083-0100
Date: 4/7/2023
Volatile Organic Compounds - GC/MS Method 6200B Sample 92120 (MW-1) QC Batch No: V31761/V31533
Sample originally run within hold. Dilution ran out of hold and confirms data
Sample 92121 (MW-2) QC Batch No: V31761/V31533
Sample originally run within hold. Dilution ran out of hold and confirms data
Sample 92123 (MW-4) QC Batch No: V31761/V31533
Sample originally run within hold. Dilution ran out of hold and confirms data
Analyte: 1,1,1-Trichloroethane QC Batch No: V31534/V31533
Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be
acceptable.
Analyte: 1,1-Dichloroethane QC Batch No: V31534/V31533 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be
acceptable.
Analyte: 1,1-Dichloroethene QC Batch No: V31534/V31533
Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.
Analyte: 1,1-Dichloropropene QC Batch No: V31534/V31533
Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 1,2,3-Trichlorobenzene QC Batch No: V31534/V31533
Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 1,2,3-Trichlorobenzene QC Batch No: V31761/V31533
Page 6 of 42

Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the
batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.
Analyte: 1,2,3-Trichloropropane
QC Batch No: V31534/V31533 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits.
Analyte: 1,2,4-Trichlorobenzene
QC Batch No: V31534/V31533 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the
batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.
Analyte: 1,2,4-Trichlorobenzene
QC Batch No: V31761/V31533 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the
batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.
Analyte: 2,2-Dichloropropane
QC Batch No: V31534/V31533 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.
Analyte: 2-Butanone
QC Batch No: V31534/V31533 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Bromochloromethane QC Batch No: V31534/V31533 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the
batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.
Analyte: Bromoform QC Batch No: V31534/V31533 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.
Analyte: Carbon Tetrachloride QC Batch No: V31534/V31533 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Chloroform QC Batch No: V31534/V31533 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.
Page 7 of 42

Analyte: cis-1,2-Dichloroethene QC Batch No: V31534/V31533
Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be
acceptable.
Analyte: 1,2-Dibromo-3-chloropropane QC Batch No: V31761/V31533
Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be
acceptable.
Analyte: Ethanol QC Batch No: V31761/V31533
Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be
acceptable.
Analyte: Hexachlorobutadiene QC Batch No: V31534/V31533
Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.
Analyte: n-Propylbenzene QC Batch No: V31534/V31533
Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: trans-1,2-Dichloroethene QC Batch No: V31534/V31533 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be
acceptable.
Analyte: trans-1,3-Dichloropropene QC Batch No: V31534/V31533 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.

Page 8 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-1
92120 Matrix:
3/21/2023 9:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<100 µg/L 100Acetone 10 03/31/23 20:21 6200BMSA
729 µg/L 5.00Benzene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Bromobenzene 10 03/31/23 20:21 6200BMSA
<10.0 µg/L 10.0Bromochloromethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Bromodichloromethane 10 03/31/23 20:21 6200BMSA
<50.0 µg/L 50.0Bromoform 10 03/31/23 20:21 6200BMSA
<10.0 µg/L 10.0Bromomethane 10 03/31/23 20:21 6200BMSA
13.9 µg/L 5.00n-Butylbenzene 10 03/31/23 20:21 6200BMSA
10.4 µg/L 5.00sec-Butyl benzene 10 03/31/23 20:21 6200BMSA
<20.0 µg/L 20.0tert-Butyl benzene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Carbon Tetrachloride 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Chlorobenzene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Chlorodibromomethane 10 03/31/23 20:21 6200BMSA
<10.0 µg/L 10.0Chloroethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Chloroform 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Chloromethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.002-Chlorotoluene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.004-Chlorotoluene 10 03/31/23 20:21 6200BMSA
<20.0 µg/L 20.01,2-Dibromo-3-Chloropropane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,2-Dibromoethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Dibromomethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,2-Dichlorobenzene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,3-Dichlorobenzene 10 03/31/23 20:21 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 9 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-1
92120 Matrix:
3/21/2023 9:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<5.00 µg/L 5.001,4-Dichlorobenzene 10 03/31/23 20:21 6200BMSA
<50.0 µg/L 50.0Dichlorodifluoromethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,1-Dichloroethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,2-Dichloroethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,1-Dichloroethene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00cis-1,2-Dichloroethene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00trans-1,2-Dichloroethene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,2-Dichloropropane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,3-Dichloropropane 10 03/31/23 20:21 6200BMSA
<20.0 µg/L 20.02,2-Dichloropropane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,1-Dichloropropene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00cis-1,3-Dichloropropene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00trans-1,3-Dichloropropene 10 03/31/23 20:21 6200BMSA
<2000 µg/L 2000Ethanol 10 03/31/23 20:21 6200BMSA
3180 H µg/L 500Ethylbenzene 1000 04/06/23 23:10 6200BMSA
<30.0 µg/L 30.0Hexachlorobutadiene 10 03/31/23 20:21 6200BMSA
496 µg/L 5.00Di-Isopropyl Ether (DIPE)10 03/31/23 20:21 6200BMSA
88.2 µg/L 5.00Isopropylbenzene 10 03/31/23 20:21 6200BMSA
7.38 µg/L 5.004-Isopropyl toluene 10 03/31/23 20:21 6200BMSA
49.1 µg/L 10.02-Hexanone 10 03/31/23 20:21 6200BMSA
<50.0 µg/L 50.0Methyl Ethyl Ketone (MEK)10 03/31/23 20:21 6200BMSA
<20.0 µg/L 20.0Methylene Chloride 10 03/31/23 20:21 6200BMSA
1180 H µg/L 1000Methyl tert-butyl ether (MTBE)1000 04/06/23 23:10 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 10 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-1
92120 Matrix:
3/21/2023 9:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
53.1 µg/L 10.04-Methyl-2-Pentanone 10 03/31/23 20:21 6200BMSA
789 µg/L 10.0Naphthalene 10 03/31/23 20:21 6200BMSA
219 µg/L 5.00n-Propylbenzene 10 03/31/23 20:21 6200BMSA
176 µg/L 5.00Styrene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,1,1,2-Tetrachloroethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,1,2,2-Tetrachloroethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Tetrachloroethene 10 03/31/23 20:21 6200BMSA
19800 H µg/L 500Toluene 1000 04/06/23 23:10 6200BMSA
<5.00 µg/L 5.001,2,3-Trichlorobenzene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,2,4-Trichlorobenzene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,1,1-Trichloroethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,1,2-Trichloroethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Trichloroethene 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Trichlorofluoromethane 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.001,2,3-Trichloropropane 10 03/31/23 20:21 6200BMSA
2170 H µg/L 5001,2,4-Trimethylbenzene 1000 04/06/23 23:10 6200BMSA
605 µg/L 5.001,3,5-Trimethylbenzene 10 03/31/23 20:21 6200BMSA
<50.0 µg/L 50.0Vinyl Acetate 10 03/31/23 20:21 6200BMSA
<5.00 µg/L 5.00Vinyl Chloride 10 03/31/23 20:21 6200BMSA
12600 H µg/L 1000m,p-Xylene 1000 04/06/23 23:10 6200BMSA
6520 H µg/L 500o-Xylene 1000 04/06/23 23:10 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 11 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-1
92120 Matrix:
3/21/2023 9:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
19100 H µg/L 500Xylene (Total)1000 04/06/23 23:10 6200B
Surrogate: 4-Bromofluorobenzene 84.6 Limits: 70-130%03/31/23 20:2110 MSA V31534
Surrogate: Dibromofluoromethane 90.8 Limits: 70-130%03/31/23 20:2110 MSA V31534
Surrogate: 1,2-Dichloroethane - d4 102 Limits: 70-130%03/31/23 20:2110 MSA V31534
Surrogate: Toluene-d8 116 Limits: 70-130%03/31/23 20:2110 MSA V31534
Surrogate: 4-Bromofluorobenzene 103 Limits: 70-130%04/06/23 23:101000 MSA V31761
Surrogate: Dibromofluoromethane 102 Limits: 70-130%04/06/23 23:101000 MSA V31761
Surrogate: 1,2-Dichloroethane - d4 103 Limits: 70-130%04/06/23 23:101000 MSA V31761
Surrogate: Toluene-d8 98.4 Limits: 70-130%04/06/23 23:101000 MSA V31761
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 12 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-2
92121 Matrix:
3/21/2023 8:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1000 µg/L 1000Acetone 100 03/31/23 21:15 6200BMSA
1250 µg/L 50.0Benzene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Bromobenzene 100 03/31/23 21:15 6200BMSA
<100 µg/L 100Bromochloromethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Bromodichloromethane 100 03/31/23 21:15 6200BMSA
<500 µg/L 500Bromoform 100 03/31/23 21:15 6200BMSA
<100 µg/L 100Bromomethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0n-Butylbenzene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0sec-Butyl benzene 100 03/31/23 21:15 6200BMSA
<200 µg/L 200tert-Butyl benzene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Carbon Tetrachloride 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Chlorobenzene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Chlorodibromomethane 100 03/31/23 21:15 6200BMSA
<100 µg/L 100Chloroethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Chloroform 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Chloromethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.02-Chlorotoluene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.04-Chlorotoluene 100 03/31/23 21:15 6200BMSA
<200 µg/L 2001,2-Dibromo-3-Chloropropane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,2-Dibromoethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Dibromomethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,2-Dichlorobenzene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,3-Dichlorobenzene 100 03/31/23 21:15 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 13 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-2
92121 Matrix:
3/21/2023 8:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<50.0 µg/L 50.01,4-Dichlorobenzene 100 03/31/23 21:15 6200BMSA
<500 µg/L 500Dichlorodifluoromethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,1-Dichloroethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,2-Dichloroethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,1-Dichloroethene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0cis-1,2-Dichloroethene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0trans-1,2-Dichloroethene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,2-Dichloropropane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,3-Dichloropropane 100 03/31/23 21:15 6200BMSA
<200 µg/L 2002,2-Dichloropropane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,1-Dichloropropene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0cis-1,3-Dichloropropene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0trans-1,3-Dichloropropene 100 03/31/23 21:15 6200BMSA
<20000 µg/L 20000Ethanol 100 03/31/23 21:15 6200BMSA
3350 µg/L 50.0Ethylbenzene 100 03/31/23 21:15 6200BMSA
<300 µg/L 300Hexachlorobutadiene 100 03/31/23 21:15 6200BMSA
97.6 µg/L 50.0Di-Isopropyl Ether (DIPE)100 03/31/23 21:15 6200BMSA
79.1 µg/L 50.0Isopropylbenzene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.04-Isopropyl toluene 100 03/31/23 21:15 6200BMSA
<100 µg/L 1002-Hexanone 100 03/31/23 21:15 6200BMSA
<500 µg/L 500Methyl Ethyl Ketone (MEK)100 03/31/23 21:15 6200BMSA
<200 µg/L 200Methylene Chloride 100 03/31/23 21:15 6200BMSA
<100 µg/L 100Methyl tert-butyl ether (MTBE)100 03/31/23 21:15 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 14 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-2
92121 Matrix:
3/21/2023 8:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<100 µg/L 1004-Methyl-2-Pentanone 100 03/31/23 21:15 6200BMSA
908 µg/L 100Naphthalene 100 03/31/23 21:15 6200BMSA
195 µg/L 50.0n-Propylbenzene 100 03/31/23 21:15 6200BMSA
106 µg/L 50.0Styrene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,1,1,2-Tetrachloroethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,1,2,2-Tetrachloroethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Tetrachloroethene 100 03/31/23 21:15 6200BMSA
21000 H µg/L 500Toluene 1000 04/06/23 22:46 6200BMSA
<50.0 µg/L 50.01,2,3-Trichlorobenzene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,2,4-Trichlorobenzene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,1,1-Trichloroethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,1,2-Trichloroethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Trichloroethene 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Trichlorofluoromethane 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.01,2,3-Trichloropropane 100 03/31/23 21:15 6200BMSA
2110 µg/L 50.01,2,4-Trimethylbenzene 100 03/31/23 21:15 6200BMSA
477 µg/L 50.01,3,5-Trimethylbenzene 100 03/31/23 21:15 6200BMSA
<500 µg/L 500Vinyl Acetate 100 03/31/23 21:15 6200BMSA
<50.0 µg/L 50.0Vinyl Chloride 100 03/31/23 21:15 6200BMSA
10300 µg/L 100m,p-Xylene 100 03/31/23 21:15 6200BMSA
4220 µg/L 50.0o-Xylene 100 03/31/23 21:15 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 15 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-2
92121 Matrix:
3/21/2023 8:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
14500 µg/L 50.0Xylene (Total)100 03/31/23 21:15 6200B
Surrogate: 4-Bromofluorobenzene 90.0 Limits: 70-130%03/31/23 21:15100 MSA V31534
Surrogate: Dibromofluoromethane 102 Limits: 70-130%03/31/23 21:15100 MSA V31534
Surrogate: 1,2-Dichloroethane - d4 116 Limits: 70-130%03/31/23 21:15100 MSA V31534
Surrogate: Toluene-d8 114 Limits: 70-130%03/31/23 21:15100 MSA V31534
Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%04/06/23 22:461000 MSA V31761
Surrogate: Dibromofluoromethane 102 Limits: 70-130%04/06/23 22:461000 MSA V31761
Surrogate: 1,2-Dichloroethane - d4 108 Limits: 70-130%04/06/23 22:461000 MSA V31761
Surrogate: Toluene-d8 99.0 Limits: 70-130%04/06/23 22:461000 MSA V31761
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 16 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-3R
92122 Matrix:
3/21/2023 9:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 µg/L 10.0Acetone 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Benzene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Bromobenzene 1 03/31/23 18:05 6200BMSA
<1.00 µg/L 1.00Bromochloromethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Bromodichloromethane 1 03/31/23 18:05 6200BMSA
<5.00 µg/L 5.00Bromoform 1 03/31/23 18:05 6200BMSA
<1.00 µg/L 1.00Bromomethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500n-Butylbenzene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500sec-Butyl benzene 1 03/31/23 18:05 6200BMSA
<2.00 µg/L 2.00tert-Butyl benzene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Carbon Tetrachloride 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Chlorobenzene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Chlorodibromomethane 1 03/31/23 18:05 6200BMSA
<1.00 µg/L 1.00Chloroethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Chloroform 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Chloromethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5002-Chlorotoluene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5004-Chlorotoluene 1 03/31/23 18:05 6200BMSA
<2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,2-Dibromoethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Dibromomethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,2-Dichlorobenzene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,3-Dichlorobenzene 1 03/31/23 18:05 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 17 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-3R
92122 Matrix:
3/21/2023 9:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.5001,4-Dichlorobenzene 1 03/31/23 18:05 6200BMSA
<5.00 µg/L 5.00Dichlorodifluoromethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,2-Dichloroethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500cis-1,2-Dichloroethene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500trans-1,2-Dichloroethene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,2-Dichloropropane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,3-Dichloropropane 1 03/31/23 18:05 6200BMSA
<2.00 µg/L 2.002,2-Dichloropropane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,1-Dichloropropene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500cis-1,3-Dichloropropene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500trans-1,3-Dichloropropene 1 03/31/23 18:05 6200BMSA
<200 µg/L 200Ethanol 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Ethylbenzene 1 03/31/23 18:05 6200BMSA
<3.00 µg/L 3.00Hexachlorobutadiene 1 03/31/23 18:05 6200BMSA
1.39 µg/L 0.500Di-Isopropyl Ether (DIPE)1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Isopropylbenzene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5004-Isopropyl toluene 1 03/31/23 18:05 6200BMSA
<1.00 µg/L 1.002-Hexanone 1 03/31/23 18:05 6200BMSA
<5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 03/31/23 18:05 6200BMSA
<2.00 µg/L 2.00Methylene Chloride 1 03/31/23 18:05 6200BMSA
<1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 03/31/23 18:05 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 18 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-3R
92122 Matrix:
3/21/2023 9:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 µg/L 1.004-Methyl-2-Pentanone 1 03/31/23 18:05 6200BMSA
<1.00 µg/L 1.00Naphthalene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500n-Propylbenzene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Styrene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Tetrachloroethene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Toluene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,1,1-Trichloroethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,1,2-Trichloroethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Trichloroethene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Trichlorofluoromethane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichloropropane 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 03/31/23 18:05 6200BMSA
<5.00 µg/L 5.00Vinyl Acetate 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500Vinyl Chloride 1 03/31/23 18:05 6200BMSA
<1.00 µg/L 1.00m,p-Xylene 1 03/31/23 18:05 6200BMSA
<0.500 µg/L 0.500o-Xylene 1 03/31/23 18:05 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 19 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-3R
92122 Matrix:
3/21/2023 9:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.500Xylene (Total)1 03/31/23 18:05 6200B
Surrogate: 4-Bromofluorobenzene 114 Limits: 70-130%03/31/23 18:051 MSA V31534
Surrogate: Dibromofluoromethane 108 Limits: 70-130%03/31/23 18:051 MSA V31534
Surrogate: 1,2-Dichloroethane - d4 115 Limits: 70-130%03/31/23 18:051 MSA V31534
Surrogate: Toluene-d8 96.0 Limits: 70-130%03/31/23 18:051 MSA V31534
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 20 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-4
92123 Matrix:
3/21/2023 10:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<100 µg/L 100Acetone 10 03/31/23 20:48 6200BMSA
4610 H µg/L 50.0Benzene 100 04/06/23 21:57 6200BMSA
<5.00 µg/L 5.00Bromobenzene 10 03/31/23 20:48 6200BMSA
<10.0 µg/L 10.0Bromochloromethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Bromodichloromethane 10 03/31/23 20:48 6200BMSA
<50.0 µg/L 50.0Bromoform 10 03/31/23 20:48 6200BMSA
<10.0 µg/L 10.0Bromomethane 10 03/31/23 20:48 6200BMSA
12.8 µg/L 5.00n-Butylbenzene 10 03/31/23 20:48 6200BMSA
9.35 µg/L 5.00sec-Butyl benzene 10 03/31/23 20:48 6200BMSA
<20.0 µg/L 20.0tert-Butyl benzene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Carbon Tetrachloride 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Chlorobenzene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Chlorodibromomethane 10 03/31/23 20:48 6200BMSA
<10.0 µg/L 10.0Chloroethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Chloroform 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Chloromethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.002-Chlorotoluene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.004-Chlorotoluene 10 03/31/23 20:48 6200BMSA
<20.0 µg/L 20.01,2-Dibromo-3-Chloropropane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,2-Dibromoethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Dibromomethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,2-Dichlorobenzene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,3-Dichlorobenzene 10 03/31/23 20:48 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 21 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-4
92123 Matrix:
3/21/2023 10:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<5.00 µg/L 5.001,4-Dichlorobenzene 10 03/31/23 20:48 6200BMSA
<50.0 µg/L 50.0Dichlorodifluoromethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,1-Dichloroethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,2-Dichloroethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,1-Dichloroethene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00cis-1,2-Dichloroethene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00trans-1,2-Dichloroethene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,2-Dichloropropane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,3-Dichloropropane 10 03/31/23 20:48 6200BMSA
<20.0 µg/L 20.02,2-Dichloropropane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,1-Dichloropropene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00cis-1,3-Dichloropropene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00trans-1,3-Dichloropropene 10 03/31/23 20:48 6200BMSA
<2000 µg/L 2000Ethanol 10 03/31/23 20:48 6200BMSA
3030 H µg/L 50.0Ethylbenzene 100 04/06/23 21:57 6200BMSA
<30.0 µg/L 30.0Hexachlorobutadiene 10 03/31/23 20:48 6200BMSA
1240 H µg/L 50.0Di-Isopropyl Ether (DIPE)100 04/06/23 21:57 6200BMSA
73.8 µg/L 5.00Isopropylbenzene 10 03/31/23 20:48 6200BMSA
6.09 µg/L 5.004-Isopropyl toluene 10 03/31/23 20:48 6200BMSA
<10.0 µg/L 10.02-Hexanone 10 03/31/23 20:48 6200BMSA
<50.0 µg/L 50.0Methyl Ethyl Ketone (MEK)10 03/31/23 20:48 6200BMSA
<20.0 µg/L 20.0Methylene Chloride 10 03/31/23 20:48 6200BMSA
361 µg/L 10.0Methyl tert-butyl ether (MTBE)10 03/31/23 20:48 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 22 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-4
92123 Matrix:
3/21/2023 10:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 µg/L 10.04-Methyl-2-Pentanone 10 03/31/23 20:48 6200BMSA
708 µg/L 10.0Naphthalene 10 03/31/23 20:48 6200BMSA
198 µg/L 5.00n-Propylbenzene 10 03/31/23 20:48 6200BMSA
26.4 µg/L 5.00Styrene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,1,1,2-Tetrachloroethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,1,2,2-Tetrachloroethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Tetrachloroethene 10 03/31/23 20:48 6200BMSA
14600 H µg/L 500Toluene 1000 04/06/23 22:21 6200BMSA
<5.00 µg/L 5.001,2,3-Trichlorobenzene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,2,4-Trichlorobenzene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,1,1-Trichloroethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,1,2-Trichloroethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Trichloroethene 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Trichlorofluoromethane 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.001,2,3-Trichloropropane 10 03/31/23 20:48 6200BMSA
1850 H µg/L 50.01,2,4-Trimethylbenzene 100 04/06/23 21:57 6200BMSA
471 µg/L 5.001,3,5-Trimethylbenzene 10 03/31/23 20:48 6200BMSA
<50.0 µg/L 50.0Vinyl Acetate 10 03/31/23 20:48 6200BMSA
<5.00 µg/L 5.00Vinyl Chloride 10 03/31/23 20:48 6200BMSA
10400 H µg/L 100m,p-Xylene 100 04/06/23 21:57 6200BMSA
3820 H µg/L 50.0o-Xylene 100 04/06/23 21:57 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 23 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-4
92123 Matrix:
3/21/2023 10:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
14200 H µg/L 50.0Xylene (Total)100 04/06/23 21:57 6200B
Surrogate: 4-Bromofluorobenzene 102 Limits: 70-130%03/31/23 20:4810 MSA V31534
Surrogate: Dibromofluoromethane 91.6 Limits: 70-130%03/31/23 20:4810 MSA V31534
Surrogate: 1,2-Dichloroethane - d4 102 Limits: 70-130%03/31/23 20:4810 MSA V31534
Surrogate: Toluene-d8 94.8 Limits: 70-130%03/31/23 20:4810 MSA V31534
Surrogate: 4-Bromofluorobenzene 103 Limits: 70-130%04/06/23 21:57100 MSA V31761
Surrogate: Dibromofluoromethane 101 Limits: 70-130%04/06/23 21:57100 MSA V31761
Surrogate: 1,2-Dichloroethane - d4 105 Limits: 70-130%04/06/23 21:57100 MSA V31761
Surrogate: Toluene-d8 99.4 Limits: 70-130%04/06/23 21:57100 MSA V31761
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%04/06/23 22:211000 MSA V31761
Surrogate: Dibromofluoromethane 102 Limits: 70-130%04/06/23 22:211000 MSA V31761
Surrogate: 1,2-Dichloroethane - d4 101 Limits: 70-130%04/06/23 22:211000 MSA V31761
Surrogate: Toluene-d8 100 Limits: 70-130%04/06/23 22:211000 MSA V31761
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 24 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-5
92124 Matrix:
3/21/2023 10:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 µg/L 10.0Acetone 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Benzene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Bromobenzene 1 03/31/23 18:32 6200BMSA
<1.00 µg/L 1.00Bromochloromethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Bromodichloromethane 1 03/31/23 18:32 6200BMSA
<5.00 µg/L 5.00Bromoform 1 03/31/23 18:32 6200BMSA
<1.00 µg/L 1.00Bromomethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500n-Butylbenzene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500sec-Butyl benzene 1 03/31/23 18:32 6200BMSA
<2.00 µg/L 2.00tert-Butyl benzene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Carbon Tetrachloride 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Chlorobenzene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Chlorodibromomethane 1 03/31/23 18:32 6200BMSA
<1.00 µg/L 1.00Chloroethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Chloroform 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Chloromethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5002-Chlorotoluene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5004-Chlorotoluene 1 03/31/23 18:32 6200BMSA
<2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,2-Dibromoethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Dibromomethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,2-Dichlorobenzene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,3-Dichlorobenzene 1 03/31/23 18:32 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 25 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-5
92124 Matrix:
3/21/2023 10:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.5001,4-Dichlorobenzene 1 03/31/23 18:32 6200BMSA
<5.00 µg/L 5.00Dichlorodifluoromethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,2-Dichloroethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500cis-1,2-Dichloroethene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500trans-1,2-Dichloroethene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,2-Dichloropropane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,3-Dichloropropane 1 03/31/23 18:32 6200BMSA
<2.00 µg/L 2.002,2-Dichloropropane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,1-Dichloropropene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500cis-1,3-Dichloropropene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500trans-1,3-Dichloropropene 1 03/31/23 18:32 6200BMSA
<200 µg/L 200Ethanol 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Ethylbenzene 1 03/31/23 18:32 6200BMSA
<3.00 µg/L 3.00Hexachlorobutadiene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Isopropylbenzene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5004-Isopropyl toluene 1 03/31/23 18:32 6200BMSA
<1.00 µg/L 1.002-Hexanone 1 03/31/23 18:32 6200BMSA
<5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 03/31/23 18:32 6200BMSA
<2.00 µg/L 2.00Methylene Chloride 1 03/31/23 18:32 6200BMSA
<1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 03/31/23 18:32 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 26 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-5
92124 Matrix:
3/21/2023 10:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 µg/L 1.004-Methyl-2-Pentanone 1 03/31/23 18:32 6200BMSA
<1.00 µg/L 1.00Naphthalene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500n-Propylbenzene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Styrene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Tetrachloroethene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Toluene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,1,1-Trichloroethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,1,2-Trichloroethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Trichloroethene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Trichlorofluoromethane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichloropropane 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 03/31/23 18:32 6200BMSA
<5.00 µg/L 5.00Vinyl Acetate 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500Vinyl Chloride 1 03/31/23 18:32 6200BMSA
<1.00 µg/L 1.00m,p-Xylene 1 03/31/23 18:32 6200BMSA
<0.500 µg/L 0.500o-Xylene 1 03/31/23 18:32 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 27 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:MW-5
92124 Matrix:
3/21/2023 10:30
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.500Xylene (Total)1 03/31/23 18:32 6200B
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%03/31/23 18:321 MSA V31534
Surrogate: Dibromofluoromethane 108 Limits: 70-130%03/31/23 18:321 MSA V31534
Surrogate: 1,2-Dichloroethane - d4 116 Limits: 70-130%03/31/23 18:321 MSA V31534
Surrogate: Toluene-d8 96.6 Limits: 70-130%03/31/23 18:321 MSA V31534
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 28 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:WSW-1
92215 Matrix:
3/21/2023 11:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 µg/L 10.0Acetone 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Benzene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Bromobenzene 1 03/31/23 18:59 6200BMSA
<1.00 µg/L 1.00Bromochloromethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Bromodichloromethane 1 03/31/23 18:59 6200BMSA
<5.00 µg/L 5.00Bromoform 1 03/31/23 18:59 6200BMSA
<1.00 µg/L 1.00Bromomethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500n-Butylbenzene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500sec-Butyl benzene 1 03/31/23 18:59 6200BMSA
<2.00 µg/L 2.00tert-Butyl benzene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Carbon Tetrachloride 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Chlorobenzene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Chlorodibromomethane 1 03/31/23 18:59 6200BMSA
<1.00 µg/L 1.00Chloroethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Chloroform 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Chloromethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5002-Chlorotoluene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5004-Chlorotoluene 1 03/31/23 18:59 6200BMSA
<2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,2-Dibromoethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Dibromomethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,2-Dichlorobenzene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,3-Dichlorobenzene 1 03/31/23 18:59 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 29 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:WSW-1
92215 Matrix:
3/21/2023 11:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.5001,4-Dichlorobenzene 1 03/31/23 18:59 6200BMSA
<5.00 µg/L 5.00Dichlorodifluoromethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,2-Dichloroethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500cis-1,2-Dichloroethene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500trans-1,2-Dichloroethene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,2-Dichloropropane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,3-Dichloropropane 1 03/31/23 18:59 6200BMSA
<2.00 µg/L 2.002,2-Dichloropropane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,1-Dichloropropene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500cis-1,3-Dichloropropene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500trans-1,3-Dichloropropene 1 03/31/23 18:59 6200BMSA
<200 µg/L 200Ethanol 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Ethylbenzene 1 03/31/23 18:59 6200BMSA
<3.00 µg/L 3.00Hexachlorobutadiene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Isopropylbenzene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5004-Isopropyl toluene 1 03/31/23 18:59 6200BMSA
<1.00 µg/L 1.002-Hexanone 1 03/31/23 18:59 6200BMSA
<5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 03/31/23 18:59 6200BMSA
<2.00 µg/L 2.00Methylene Chloride 1 03/31/23 18:59 6200BMSA
<1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 03/31/23 18:59 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 30 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:WSW-1
92215 Matrix:
3/21/2023 11:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 µg/L 1.004-Methyl-2-Pentanone 1 03/31/23 18:59 6200BMSA
<1.00 µg/L 1.00Naphthalene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500n-Propylbenzene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Styrene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Tetrachloroethene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Toluene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,1,1-Trichloroethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,1,2-Trichloroethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Trichloroethene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Trichlorofluoromethane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichloropropane 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 03/31/23 18:59 6200BMSA
<5.00 µg/L 5.00Vinyl Acetate 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500Vinyl Chloride 1 03/31/23 18:59 6200BMSA
<1.00 µg/L 1.00m,p-Xylene 1 03/31/23 18:59 6200BMSA
<0.500 µg/L 0.500o-Xylene 1 03/31/23 18:59 6200BMSA
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 31 of 42
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-083-0100
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
Kevin Buchanan
Cary
23-0307-CG Received : 03/24/2023
Gregory Fork Variety
Report Date : 04/10/2023
Sample ID :
Lab No :
Sampled:WSW-1
92215 Matrix:
3/21/2023 11:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.500Xylene (Total)1 03/31/23 18:59 6200B
Surrogate: 4-Bromofluorobenzene 115 Limits: 70-130%03/31/23 18:591 MSA V31534
Surrogate: Dibromofluoromethane 109 Limits: 70-130%03/31/23 18:591 MSA V31534
Surrogate: 1,2-Dichloroethane - d4 116 Limits: 70-130%03/31/23 18:591 MSA V31534
Surrogate: Toluene-d8 101 Limits: 70-130%03/31/23 18:591 MSA V31534
Qualifiers/
Definitions
Beyond holding timeHDilution FactorDF
Method Quantitation LimitMQL
Page 32 of 42
Quality Control Data
23-083-0100Report No:
Project Description:
Client ID:Withers & Ravenel
Gregory Fork Variety
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31534QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31533
Associated Lab Samples: 92120, 92121, 92122, 92123, 92124, 92215
LRB-V31533 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/31/23 14:2710.0< 10.0µg/LAcetone
03/31/23 14:270.500< 0.500µg/LBenzene
03/31/23 14:270.500< 0.500µg/LBromobenzene
03/31/23 14:271.00< 1.00µg/LBromochloromethane
03/31/23 14:270.500< 0.500µg/LBromodichloromethane
03/31/23 14:275.00< 5.00µg/LBromoform
03/31/23 14:271.00< 1.00µg/LBromomethane
03/31/23 14:270.500< 0.500µg/Ln-Butylbenzene
03/31/23 14:270.500< 0.500µg/Lsec-Butyl benzene
03/31/23 14:272.00< 2.00µg/Ltert-Butyl benzene
03/31/23 14:270.500< 0.500µg/LCarbon Tetrachloride
03/31/23 14:270.500< 0.500µg/LChlorobenzene
03/31/23 14:270.500< 0.500µg/LChlorodibromomethane
03/31/23 14:271.00< 1.00µg/LChloroethane
03/31/23 14:270.500< 0.500µg/LChloroform
03/31/23 14:270.500< 0.500µg/LChloromethane
03/31/23 14:270.500< 0.500µg/L2-Chlorotoluene
03/31/23 14:270.500< 0.500µg/L4-Chlorotoluene
03/31/23 14:272.00< 2.00µg/L1,2-Dibromo-3-Chloropropane
03/31/23 14:270.500< 0.500µg/L1,2-Dibromoethane
03/31/23 14:270.500< 0.500µg/LDibromomethane
03/31/23 14:270.500< 0.500µg/L1,2-Dichlorobenzene
03/31/23 14:270.500< 0.500µg/L1,3-Dichlorobenzene
03/31/23 14:270.500< 0.500µg/L1,4-Dichlorobenzene
03/31/23 14:275.00< 5.00µg/LDichlorodifluoromethane
03/31/23 14:270.500< 0.500µg/L1,1-Dichloroethane
03/31/23 14:270.500< 0.500µg/L1,2-Dichloroethane
Page 1 of 8Date:04/10/2023 10:05 AM
Page 33 of 42
Quality Control Data
23-083-0100Report No:
Project Description:
Client ID:Withers & Ravenel
Gregory Fork Variety
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31534QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31533
Associated Lab Samples: 92120, 92121, 92122, 92123, 92124, 92215
LRB-V31533 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/31/23 14:270.500< 0.500µg/L1,1-Dichloroethene
03/31/23 14:270.500< 0.500µg/Lcis-1,2-Dichloroethene
03/31/23 14:270.500< 0.500µg/Ltrans-1,2-Dichloroethene
03/31/23 14:270.500< 0.500µg/L1,2-Dichloropropane
03/31/23 14:270.500< 0.500µg/L1,3-Dichloropropane
03/31/23 14:272.00< 2.00µg/L2,2-Dichloropropane
03/31/23 14:270.500< 0.500µg/L1,1-Dichloropropene
03/31/23 14:270.500< 0.500µg/Lcis-1,3-Dichloropropene
03/31/23 14:270.500< 0.500µg/Ltrans-1,3-Dichloropropene
03/31/23 14:27200< 200µg/LEthanol
03/31/23 14:270.500< 0.500µg/LEthylbenzene
03/31/23 14:273.00< 3.00µg/LHexachlorobutadiene
03/31/23 14:270.500< 0.500µg/LDi-Isopropyl Ether (DIPE)
03/31/23 14:270.500< 0.500µg/LIsopropylbenzene
03/31/23 14:270.500< 0.500µg/L4-Isopropyl toluene
03/31/23 14:271.00< 1.00µg/L2-Hexanone
03/31/23 14:275.00< 5.00µg/LMethyl Ethyl Ketone (MEK)
03/31/23 14:272.00< 2.00µg/LMethylene Chloride
03/31/23 14:271.00< 1.00µg/LMethyl tert-butyl ether (MTBE)
03/31/23 14:271.00< 1.00µg/L4-Methyl-2-Pentanone
03/31/23 14:271.00< 1.00µg/LNaphthalene
03/31/23 14:270.500< 0.500µg/Ln-Propylbenzene
03/31/23 14:270.500< 0.500µg/LStyrene
03/31/23 14:270.500< 0.500µg/L1,1,1,2-Tetrachloroethane
03/31/23 14:270.500< 0.500µg/L1,1,2,2-Tetrachloroethane
03/31/23 14:270.500< 0.500µg/LTetrachloroethene
03/31/23 14:270.500< 0.500µg/LToluene
Page 2 of 8Date:04/10/2023 10:05 AM
Page 34 of 42
Quality Control Data
23-083-0100Report No:
Project Description:
Client ID:Withers & Ravenel
Gregory Fork Variety
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31534QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31533
Associated Lab Samples: 92120, 92121, 92122, 92123, 92124, 92215
LRB-V31533 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/31/23 14:270.500< 0.500µg/L1,2,3-Trichlorobenzene
03/31/23 14:270.500< 0.500µg/L1,2,4-Trichlorobenzene
03/31/23 14:270.500< 0.500µg/L1,1,1-Trichloroethane
03/31/23 14:270.500< 0.500µg/L1,1,2-Trichloroethane
03/31/23 14:270.500< 0.500µg/LTrichloroethene
03/31/23 14:270.500< 0.500µg/LTrichlorofluoromethane
03/31/23 14:270.500< 0.500µg/L1,2,3-Trichloropropane
03/31/23 14:270.500< 0.500µg/L1,2,4-Trimethylbenzene
03/31/23 14:270.500< 0.500µg/L1,3,5-Trimethylbenzene
03/31/23 14:275.00< 5.00µg/LVinyl Acetate
03/31/23 14:270.500< 0.500µg/LVinyl Chloride
03/31/23 14:271.00< 1.00µg/Lm,p-Xylene
03/31/23 14:270.500< 0.500µg/Lo-Xylene
03/31/23 14:274-Bromofluorobenzene (S)98.4 70-130
03/31/23 14:27Dibromofluoromethane (S)104 70-130
03/31/23 14:271,2-Dichloroethane - d4 (S)114 70-130
03/31/23 14:27Toluene-d8 (S)92.2 70-130
LCS-V31533Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11422.720.0µg/LBromochloromethane 70-130
10921.720.0µg/LBromoform 70-130
11222.420.0µg/LChloroform 70-130
11823.520.0µg/L1,1-Dichloroethane 70-130
11222.420.0µg/Lcis-1,2-Dichloroethene 70-130
12424.820.0µg/L2,2-Dichloropropane 70-130
Page 3 of 8Date:04/10/2023 10:05 AM
Page 35 of 42
Quality Control Data
23-083-0100Report No:
Project Description:
Client ID:Withers & Ravenel
Gregory Fork Variety
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31534QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31533
LCS-V31533Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11623.220.0µg/L1,1-Dichloropropene 70-130
12725.320.0µg/L1,1,1-Trichloroethane 70-130
LCS-V31533 LCSD-V31533Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
48.1 12011546.140.0µg/LAcetone 40-160 4.2 20.0
24.3 12210120.120.0µg/LBenzene 70-130 18.9 20.0
26.0 13010721.320.0µg/LBromobenzene 70-130 19.8 20.0
23.2 11611623.120.0µg/LBromodichloromethane 70-130 0.4 20.0
23.4 11711222.420.0µg/LBromomethane 60-140 4.3 20.0
23.9 12011523.020.0µg/Ln-Butylbenzene 70-130 3.8 20.0
24.1 12110921.720.0µg/Lsec-Butyl benzene 70-130 10.4 20.0
25.1 12611021.920.0µg/Ltert-Butyl benzene 70-130 13.6 20.0
22.0 11011122.120.0µg/LChlorobenzene 70-130 0.4 20.0
22.6 11310721.420.0µg/LChlorodibromomethane 70-130 5.4 20.0
21.5 10895.519.120.0µg/LChloroethane 60-140 11.8 20.0
17.6 88.085.017.020.0µg/LChloromethane 60-140 3.4 20.0
25.6 12811623.120.0µg/L2-Chlorotoluene 70-130 10.2 20.0
24.9 12510621.220.0µg/L4-Chlorotoluene 70-130 16.0 20.0
22.2 11111122.120.0µg/L1,2-Dibromo-3-Chloropropane 70-130 0.4 20.0
22.5 11311222.420.0µg/L1,2-Dibromoethane 70-130 0.4 20.0
23.5 11810621.120.0µg/LDibromomethane 70-130 10.7 20.0
21.8 10911222.420.0µg/L1,2-Dichlorobenzene 70-130 2.7 20.0
23.3 11710721.320.0µg/L1,3-Dichlorobenzene 70-130 8.9 20.0
21.5 10811022.020.0µg/L1,4-Dichlorobenzene 70-130 2.2 20.0
Page 4 of 8Date:04/10/2023 10:05 AM
Page 36 of 42
Quality Control Data
23-083-0100Report No:
Project Description:
Client ID:Withers & Ravenel
Gregory Fork Variety
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31534QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31533
LCS-V31533 LCSD-V31533Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
19.3 96.595.019.020.0µg/LDichlorodifluoromethane 60-140 1.5 20.0
25.5 12812224.420.0µg/L1,2-Dichloroethane 70-130 4.4 20.0
19.5 97.598.519.720.0µg/L1,2-Dichloropropane 70-130 1.0 20.0
21.1 10690.518.120.0µg/L1,3-Dichloropropane 70-130 15.3 20.0
22.1 11112625.120.0µg/Lcis-1,3-Dichloropropene 70-130 12.7 20.0
24.3 122137*27.420.0µg/Ltrans-1,3-Dichloropropene 70-130 11.9 20.0
687 137123614500µg/LEthanol 60-140 11.2 20.0
20.6 10310520.920.0µg/LEthylbenzene 70-130 1.4 20.0
25.0 12511222.420.0µg/LDi-Isopropyl Ether (DIPE)70-130 10.9 20.0
25.2 12612023.920.0µg/LIsopropylbenzene 70-130 5.2 20.0
25.7 12911522.920.0µg/L4-Isopropyl toluene 70-130 11.5 20.0
18.8 94.096.519.320.0µg/L2-Hexanone 60-140 2.6 20.0
20.7 10483.516.720.0µg/LMethyl Ethyl Ketone (MEK)60-140 21.3*20.0
25.7 12912825.520.0µg/LMethylene Chloride 70-130 0.7 20.0
25.3 12712625.120.0µg/LMethyl tert-butyl ether (MTBE)70-130 0.7 20.0
20.7 10411122.220.0µg/L4-Methyl-2-Pentanone 60-140 6.9 20.0
25.0 12511723.420.0µg/LNaphthalene 70-130 6.6 20.0
25.2 12610120.120.0µg/Ln-Propylbenzene 70-130 22.5*20.0
24.5 12310921.720.0µg/LStyrene 70-130 12.1 20.0
25.6 12811623.220.0µg/L1,1,1,2-Tetrachloroethane 70-130 9.8 20.0
24.6 12310220.420.0µg/L1,1,2,2-Tetrachloroethane 70-130 18.6 20.0
23.1 11611522.920.0µg/LTetrachloroethene 70-130 0.8 20.0
22.3 11212524.920.0µg/LToluene 70-130 11.0 20.0
22.5 11312925.720.0µg/L1,1,2-Trichloroethane 70-130 13.2 20.0
23.5 11811222.320.0µg/LTrichloroethene 70-130 5.2 20.0
24.2 12112124.120.0µg/LTrichlorofluoromethane 60-140 0.4 20.0
Page 5 of 8* QC Fail Date:04/10/2023 10:05 AM
Page 37 of 42
Quality Control Data
23-083-0100Report No:
Project Description:
Client ID:Withers & Ravenel
Gregory Fork Variety
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31534QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31533
LCS-V31533 LCSD-V31533Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
24.5 12393.518.720.0µg/L1,2,3-Trichloropropane 70-130 26.8*20.0
23.7 11910921.820.0µg/L1,2,4-Trimethylbenzene 70-130 8.3 20.0
25.5 12810721.420.0µg/L1,3,5-Trimethylbenzene 70-130 17.4 20.0
24.4 12210220.420.0µg/LVinyl Acetate 60-140 17.8 20.0
19.7 98.510420.720.0µg/LVinyl Chloride 60-140 4.9 20.0
45.6 11411144.240.0µg/Lm,p-Xylene 70-130 3.1 20.0
24.4 12210521.020.0µg/Lo-Xylene 70-130 14.9 20.0
1171014-Bromofluorobenzene (S)70-130
124104Dibromofluoromethane (S)70-130
1261121,2-Dichloroethane - d4 (S)70-130
97.296.6Toluene-d8 (S)70-130
Page 6 of 8* QC Fail Date:04/10/2023 10:05 AM
Page 38 of 42
Quality Control Data
23-083-0100Report No:
Project Description:
Client ID:Withers & Ravenel
Gregory Fork Variety
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31761QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31760
Associated Lab Samples: 92120, 92121, 92123
LRB-V31760 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/06/23 15:500.500< 0.500µg/LBenzene
04/06/23 15:500.500< 0.500µg/LEthylbenzene
04/06/23 15:500.500< 0.500µg/LDi-Isopropyl Ether (DIPE)
04/06/23 15:501.00< 1.00µg/LMethyl tert-butyl ether (MTBE)
04/06/23 15:500.500< 0.500µg/LToluene
04/06/23 15:500.500< 0.500µg/L1,2,4-Trimethylbenzene
04/06/23 15:501.00< 1.00µg/Lm,p-Xylene
04/06/23 15:500.500< 0.500µg/Lo-Xylene
04/06/23 15:504-Bromofluorobenzene (S)103 70-130
04/06/23 15:50Dibromofluoromethane (S)102 70-130
04/06/23 15:501,2-Dichloroethane - d4 (S)104 70-130
04/06/23 15:50Toluene-d8 (S)99.4 70-130
LCS-V31760 LCSD-V31760Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
19.8 99.010120.120.0µg/LBenzene 70-130 1.5 20.0
20.1 10110120.220.0µg/LEthylbenzene 70-130 0.4 20.0
19.4 97.098.019.620.0µg/LDi-Isopropyl Ether (DIPE)70-130 1.0 20.0
23.2 11611222.320.0µg/LMethyl tert-butyl ether (MTBE)70-130 3.9 20.0
20.3 10210320.520.0µg/LToluene 70-130 0.9 20.0
21.0 10510520.920.0µg/L1,2,4-Trimethylbenzene 70-130 0.4 20.0
42.7 10710642.540.0µg/Lm,p-Xylene 70-130 0.4 20.0
20.4 10210520.920.0µg/Lo-Xylene 70-130 2.4 20.0
1001024-Bromofluorobenzene (S)70-130
102101Dibromofluoromethane (S)70-130
Page 7 of 8Date:04/10/2023 10:05 AM
Page 39 of 42
Quality Control Data
23-083-0100Report No:
Project Description:
Client ID:Withers & Ravenel
Gregory Fork Variety
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31761QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31760
LCS-V31760 LCSD-V31760Laboratory Control Sample & LCSD
LCSD
ResultParameter
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
1081071,2-Dichloroethane - d4 (S)70-130
100100Toluene-d8 (S)70-130
Page 8 of 8Date:04/10/2023 10:05 AM
Page 40 of 42
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:23-083-0100
Withers & Ravenel
01221
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:IRT15 0.2C
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:Angela D Overcash Date & Time:03/24/2023 17:08:56
Special precautions or instructions included?
Comments:
Page 41 of 42
Page 42 of 42

APPENDIX B 

FIELD NOTES & PHOTOGRAPHIC RECORD 

 PHOTO 1 
MW‐1 

 PHOTO 2 
MW‐2 

 PHOTO 3 
MW‐3R 

 PHOTO 4 
MW‐4 

 PHOTO 5 
MW‐5 

APPENDIX C 

GENERAL STANDARD OPERATING PROCEDURES