1304_Cabarrus_CMSV_MSWLF_ReceptorSurvey_20250110

Geosyntec'
consultants
Geosyntec CunsuItan is of NC. P..C.
1300 South Mint St.
Suite 300
Charlotte, NC 28203
PH 704.227.0840
www.geosyntec.com
Memorandum
Date: 10 January 2025
To: Perry Sugg, North Carolina Department of Environmental Quality
From: Amy Brooks, PG (NC, SC), PE (NC) and Warren Brady, Geosyntec
CC: Mike Gurley, BFI Waste Systems of North Carolina, LLC
Subject: Receptor Survey, Charlotte Motor Speedway Landfill, Concord, North
Carolina
On behalf of BFI Waste Systems of North Carolina, LLC (Client), Geosyntec
Consultants of NC, P.C. (Geosyntec) has prepared this Receptor Survey memorandum for the
North Carolina Department of Environmental Quality (NCDEQ) Solid Waste Section. This
memorandum documents the receptor survey performed at the Charlotte Motor Speedway
Landfill (Site) located at 5105A Morehead Road, Concord, North Carolina in response to
the NCDEQ Notice of Regulatory Requirements (NORR) for Contaminant Assessment and
Cleanup letter, dated 21 November 2024 (21 November 2024 Letter). The 21 November 2024
Letter requested that the Client conduct a receptor survey within 1,500 feet (ft) of the Site
property boundary and submit the results including an inventory table and figure of
identifiable public and private drinking water wells, irrigation wells, springs, and surface
waters (streams, ponds, lakes, and public water supply surface waters and intake locations
that are used as sources of potable water).
The desktop portion of the receptor survey was conducted by searching federal, state, and county
databases to gather available data. Data on surface water, groundwater, and springs were obtained
from the United States Geological Survey (USGS) National Water Information System'
and National Hydrography Dataset2. Data on surface water sources was obtained from the
NCDEQ North Carolina (NC) Surface Water Classifications database', while information on
water supply watersheds was sourced from the NCDEQ NC Water Supply Watershed
Classified Areas
' USGS National Water Information System
2 USGS National Hydrography Dataset
3 NCDEQ NC Surface Water Classifications
CAR240254
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Charlotte Motor Speedway Landfill Receptor Survey
January 2025
Page 2
database 4. The NCDEQ Division of Water Resources (DWR) Map Locators was utilized to locate
and document various water bodies, and data on wetlands was gathered from the DWR NC Public
Wetlands database'. Information on groundwater sources was obtained from the DWR
Groundwater Resources Branch Map Interface, and the State of NC's OneMapB was used to
identify public water supply sources. Parcel and utility information were retrieved from the
Cabarrus County NC GIS mapper9.
During the desktop evaluation, Geosyntec identified two (2) Class C streams, nine (9) unnamed
streams that were not classified, and six (6) unnamed ponds that were not classified within the
1,500-ft designated search radius. No public or private drinking water wells, irrigation wells,
springs, public water supply surface waters, or intake locations were identified within the 1,500-ft
designated search radius during the desktop evaluation. Surface waters identified within the 1,500-
ft designated search radius of the Site are summarized in Table 1 and displayed in Figure 1.
The Site has seven streams and one pond within the Site boundary related to stormwater. Rocky
River (Class C which is protected for aquatic life and secondary contact recreation but not as a
drinking water source) runs along the western portion of the Site and along the southern Site
boundary while six unnamed and unclassified streams are located throughout the Site. One
unnamed pond (a sediment basin) is located within the northwestern portion of the Site.
A field groundwater and surface water receptor survey was conducted on 12 December 2024 by
Geosyntec to identify potential water supply wells or surface water supply intakes. The field survey
was conducted by driving on accessible roads within a 1,500-foot radius of the Site. Field staff
identified ten (10) potential well heads/well houses within the search radius. Eight potential
groundwater wells were observed to the northeast, one was observed to the southeast, and one was
observed to the southwest of the Site. The location of the potential well heads/well houses are
shown on Figure 1 and available information is summarized in Table 2. Representative
example photos of features identified as potential wells are included in an attached
photographic log.
4 NCDEQ NC Water Supply Watershed Classified Areas
'NCDEQ DWR Map Locator
'NCDEQ DWR NC Public Wetlands
NCDEQ DWR Groundwater Resources Branch Map Interface
$ State of NC OneMap
9 Cabarrus County NC GIS
CAR240254
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Charlotte Motor Speedway Landfill Receptor Survey
January 2025
Page 3
According to the August 2024 Groundwater Statistical Analysis Report — First Semi -Annual 2024
Sampling Event by Jett Environmental, groundwater is projected to flow southwest and therefore
away from the majority of the potential groundwater wells. There is one potential groundwater
well to the southwest of the Site, however, Rocky River likely acts as a groundwater divide
between the Site and the possible well.
In summary, based on desktop and field evaluations, seventeen (17) various surface waters and ten
(10) potential groundwater wells were identified within the designated 1,500-foot search radius.
The Site is unlikely to pose a threat to potable water sources due to the projected groundwater flow
direction away from the majority of potential groundwater wells, the Rocky River likely acts as a
groundwater divide, and that the identified surface waters are not used for drinking water.
CAR240254
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Table 1
Surface Water Inventory Table Within Designated 1,500 Foot Radius
Charlotte Motor Speedway Landfill
Concord, North Carolina
Water Body Name
Surface Water
Classification
Stream Index
8-Digit HUC
Approximate Stream
Length
miles
Approximate Area
(acres)
Surface Water Type
Approximate Distance
(feet) and Direction
from Site Boundary
Source
Surface Waters (Springs, Streams, Ponds, Lakes, or Public Water Supply Watersheds)
Rocky River
C
13-17
NA
95
NA
Stream
0 W
NCDEQ, NC Surface
Mallard Creek
C
13-17-5
NA
13
NA
Stream
0 SW
Water Classifications
Unnamed Stream
NA
NA
NA
0.6
NA
Stream
0 N
Unnamed Stream
NA
NA
NA
0.6
NA
Stream
0 NW
Unnamed Stream
NA
NA
NA
0.1
NA
Stream
0 NW
Unnamed Stream
NA
NA
NA
0.4
NA
Stream
0 W
Unnamed Stream
NA
NA
NA
0.5
NA
Stream
0 NA
Unnamed Stream
NA
NA
NA
0.3
NA
Stream
OS
Unnamed Stream
NA
NA
NA
0.7
NA
Stream
OS
Unnamed Stream
NA
NA
NA
1.0
NA
Stream
0 E
NCDEQ DWR Map
Unnamed Pond
NA
NA
NA
NA
1.0
Pond
0 NW
Locator
Unnamed Pond
NA
NA
NA
NA
0.6
Pond
1,100 S
Unnamed Pond
NA
NA
NA
NA
0.3
Pond
1,300 E
Unnamed Pond
NA
NA
NA
NA
1.5
Pond
1,400 SW
Unnamed Pond
NA
NA
NA
NA
0.3
Pond
1,500 SW
Unnamed Stream
NA
NA
NA
0.8
NA
Stream
1,500 NE
Unnamed Pond
NA
NA
NA
NA
0.3
Pond
1,500 E
Notes:
1. RUC indicates hydrologic unit code
2. NA indicates not applicable
3. E indicates east
4. N indicates north
5. NE indicates northeast
6. NW indicates northwest
7. S indicates south
8. SW indicates southwest
9. W indicates west
10. Class C surface water classification refers to waters protected for uses such as aquatic life propagation, survival and maintenance of biological integrity (including fishing and fish), wildlife, secondary contact recreation, and agriculture.
Secondary contact recreation means wading, boating, other uses not involving human body contact with water, and activities involving human body contact with water where such activities take place on an infrequent, unorganized, or
incidental basis.
11. North Carolina Department of Environmental Quality (NCDEQ), North Carolina (NC) Surface Water Classifications is available online at https:Hexperience.arcgis.com/experience/7073e9l22ab74588b8c48ded34c3df55/page/Page-
1 /?views=Layers%2CMap-Tools
12. NCDEQ, Division of Water Resources (DWR) Map Locator available online at https://data-ncdenr.opendata.arcgis.com/apps/689283dl7bf342c2a96364fbabO9a5d8/explore
Geosyntec Consultants of NC, P.C. Page 1 of 1 January 2025

Table 2
Potential Well Inventory Table Within Designated 1,500 Foot Radius
Charlotte Motor Speedway Landfill
Concord, North Carolina
Well ID on Map
Latitude
Longitude
fi Depth
Aquifer
Status
Type of Well
Primary Use
City Water Available
49
35.33382
-80.6575
Unknown
Unknown
Unknown
Unknown
Unknown
Yes
55
35.34575
-80.65095
Unknown
Unknown
Unknown
Unknown
Unknown
Yes
56
35.35545
-80.65822
Unknown
Unknown
Unknown
Unknown
Unknown
Yes
57
35.35912
-80.65654
Unknown
Unknown
Unknown
Unknown
Unknown
Yes
58
35.35823
-80.65658
Unknown
Unknown
Unknown
Unknown
Unknown
Yes
59
35.35755
-80.65552
Unknown
Unknown
Unknown
Unknown
Unknown
Yes
60
35.3574
-80.65446
Unknown
Unknown
Unknown
Unknown
Unknown
Yes
61
35.35739
-80.65444
Unknown
Unknown
Unknown
Unknown
Unknown
Yes
62
35.35711
-80.65333
Unknown
Unknown
Unknown
Unknown
Unknown
Yes
63
35.35646
-80.65662
Unknown
Unknown
Unknown
Unknown
Unknown
Yes
Notes:
1. Latitude and longitude measured from nearest roadway using a mobile device.
2. City water availability based on local knowledge.
Geosyntec Consultants of NC, P.C. Page 1 of 1 January 2025

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GEOSYNTEC CONSULTANTS
Geow tec"
Photographic Record
Client: BFI Waste Systems of North Carolina, LLC Project Number: GC10654
Site Name: Charlotte Motor
Speedway Site Location: Concord, NC
Photograph 1
Date: 12/12/2024
Direction : NW
Comments:
Possible well underneath
fake
rock
Photograph 2h
Date: 12/12/2024
tT#
Direction: SE
Comments:
Possible well house
' }
+ t dr
1 }
—
Concord, NC, 28027, (Charlotte Motor Spee A - 2 Dec-24
dway) - Photo Log
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GEOSYNTEC CONSULTANTS
Geow tec"
Photographic Record
Client: BFI Waste Systems
of North Carolina, LLC Project Number: GC10654
Site Name: Charlotte Motor Speedway Site Location: Concord, NC
Photograph 3
JI'
Fir
.`
Date: 12/12/2024
Direction : W
f
`. ,
Comments:
Possible well house
Photograph 4
Date: 12/12/2024
Direction: N
-'
-_
Comments:
Possible well house
'�= -
F
.f.
tiA,,
rst fit[
y {�
�
Concord, NC, 28027, (Charlotte Motor Spee A - 3 Dec-24
dway) - Photo Log
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