WQ0005910_NOV Response_20200302

Avoca, LLC
The World's Premier Botanical Extraction Company
March 11, 2020
Mr. Dwight Randy Sipe P.G.
Hydrogeologist
NC Division of Water Quality
943 Washington Square Mall
Washington, NC 27961
Subject: Avoca, LLC Wastewater Irrigation System Evaluation and NOV Response
Merry Hill, Bertie County, NC
Mr. Sipe,
Avoca,LLC
PO Box 129
841 Avoca Farm Rd
Merry Hill, NC 27957
Phone: [phone]
�W: 52-482-8622
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t "? R is q epl ona1
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Attached you will find the evaluation and recommendations for the Avoca, LLC site as provided by Kelley
Smith of GMA. Avoca plans to follow the recommendations in the report if you and your organization
agree.
If you have any questions or concerns, please to hesitate to contact me or Kelley Smith of GMA at (252)
758-3310.
Sincerely,
Brian Conner
EHS Manager
Avoca, LLC

0
GMA
The Groundwater Experts
March 2, 2020
Mr. Brian Conner, O.R.C.
Avoca, LLC
PO Box 129
841 Avoca Farm Road
Merry Hill, NC 27957
4300 Sapphire Court, Suite 100
Greenville, North Carolina 27834
Telephone: [phone]
www.Qmo-nc.com
Apex and G
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RE: UPDATED Avoca, LLC Wastewater Irrigation System Evaluation and Notice of Violation
Response, Merry Hill, Bertie County, NC
Dear Brian,
This letter presents an update to GMA's hydrogeologic evaluation of the Avoca wastewater irrigation
system (Figure 1) report dated May 17, 2019.
The wastewater irrigation system operated by Avoca, under Permit No. WQ0005910, includes
approximately 33 acres of spray irrigation areas that are permitted to receive up to 50,000 gallons
per day of treated wastewater. Until September of 2019, Avoca monitored groundwater levels and
groundwater quality using 5 existing monitoring wells (MW-4, MW-5, MW-7, MWB, and MW9/6R).
In November of 2018, Avoca received a Notice of Violation (NOV) from the NC Division of
Environmental Quality (NCDEQ) citing exceedances of the 15A NCAC 2L groundwater standards in
compliance monitoring wells. Specifically, elevated ammonia concentrations have been detected in
well MW-8, and elevated nitrate -nitrogen has been detected at MW4 (Figure 1). The NCDEQ has
cited Avoca in the past with similar notices, but Avoca provided supplemental information to NCDEQ
that indicated that these exceedances likely were not related to the spray irrigation activities.
The November 27, 2018, NOV sent to Avoca requested predictive calculations or modeling to
demonstrate that compliance with the permit boundary can be met. On May 17, 2019, GMA
submitted a NOV Evaluation Report in response to NCDEQ requests that included our investigation
results, water -quality review, conclusions and interpretations, and recommendations. On July 31,
2019, NCDEQ requested that Avoca proceed with performing the actions recommended in GMA's
report. These recommendations included: 1) the construction of one new monitoring well on the
north-northwest side of Sprayfield 5 to pinpoint local groundwater flow direction, and 2) conducting
an updated monitoring event.

Mr. Conner
Page 2
Avoca contracted GMA to provide additional hydrogeological consulting at the site. GMA's scope of
work for these additional services included the following:
Oversite of drilling, construction, and development of one new monitoring well (MW10, Figure 1)
on the north-northwest side of Sprayfield 5.
Review the quarterly (November 2019) water -level data and quarterly water -quality sample
results (collected by Avoca in accordance with the wastewater irrigation permit).
Prepare a report sealed by a NC Licensed Geologist employed by GMA. The report includes the
following:
o A description of drilling and well construction for one new monitoring well.
o Updated water table elevation maps that incorporate water -level measurements
collected by Avoca from all wells at the site (including the newly installed monitoring
well).
o A description of the estimated hydraulic position (up -gradient, side -gradient, or down -
gradient) of all monitoring wells relative to the locations of active spray irrigation fields.
o Provide GMA's updated opinions on the whether the reported ammonia and nitrate
concentrations that exceed the NCAC 02L Groundwater Quality Standards represent
background conditions versus potentially being related to the wastewater irrigation
system.
GMA has prepared the following letter report describing the updated hydrogeologic conditions of the
site.
Investigation Results
Drilling, Construction, and Development of New Monitoring Well MWI0
A GMA geologist was on site to observe the progress of drilling, construction, and development of
monitoring well MW10 to ensure that the monitoring well was screened as recommended, was
properly cased, had the appropriate filter pack installed, and was properly grouted. The monitoring
well was screened from 10 to 20 feet depth with 2-inch diameter 10-slot SCH40 PVC screen. A 2-
inch diameter SCH40 PVC casing was installed from 10 feet depth to three feet above land surface.
The monitoring well screen was paired with a #2 gravel pack installed from 10 to 20 feet depth.
The annular space above the gravel pack was sealed with bentonite from 2 to 10 feet depth, above
which the remaining annulus was filled with neat cement grout to the land surface. MW10 was
equipped with an aboveground locking well cover and protected by three bollards placed around the
well. Following installation of the monitoring well, the drilling contractor developed the monitoring
well to remove mud from the producing interval of the well and to allow for flow of water from the
aquifer through the gravel pack and screen. All well installation activities conformed to 15A NCAC
2C standard, and the well construction record (GW-1) for monitoring well MW10 is attached.

Mr. Conner
Page 3
The representative shallow stratigraphy of well MW10 is summarized below.
Death (Feet BLSI General Description
0 — 2.0 Dark brown organic SOIL
2.0 — 8.0 Brown F-M sandy SILT
8.0 — 10.0 Lt. brown F-M sandy SILT
10.0 — 15.0 Lt. brown silty F-M SAND
12.0 — 17.0 Tan silty F-M SAND
17.0 — 20.0+ Gray silty F-M SAND
Historical Water Level Data Evaluation
GMA compiled hydrographs (Figure 2) of recorded water levels for each monitoring well at the site
from the past three and a half years. These hydrographs establish a record of the observed
seasonal water -level fluctuations for the monitoring well network. Water -level data are included as
an attachment.
The monitoring well hydrographs reveal significant differences in seasonal water -level fluctuations
for some wells. For instance, monitoring wells MW7 and MW8 experienced a larger drop in water
levels during summer of 2017 than occurred in MW4 and MW5 during the same time period. GMA
believes that the water levels in wells MW7 and MW8 are strongly influenced by the water level in
Black Walnut Swamp. Black Walnut Swamp is a non -tidal second -order stream that serves as a local
groundwater discharge area for the water table aquifer. A drop in water level in Black Walnut
Swamp during abnormally dry periods would lead to a corresponding water table drop in areas close
to the creek, such as occurs at MW7 and MW8. In contrast, MW4 and MW5 lie close to Salmon
Creek, a 3rd order tidal creek that essentially maintains a constant water elevation. This constant
head discharge area prevents significant seasonal variation in the water table in areas adjacent to
Salmon Creek.
Water Table Mapping and Groundwater Flow Evaluation
To understand the detections of groundwater quality standard exceedances at MW4 and MW8, it is
imperative to understand the groundwater flow direction(s) at the site. GMA's February 27, 2019,
equipotential map found in our initial evaluation report indicated that the groundwater flow direction
across the sprayfield property was toward the northeast. However, we recognized that correlation
of water levels between monitoring wells MW-4, MW-5, MW-7, MW8, and MW9/6R did not consider
the effects of local groundwater discharge features (Black Walnut Swamp and Salmon Creek). The
water -level data collected from these monitoring wells only represented the extreme northern and
southern portions of the sprayfields in areas close to discharge features (streams). The USGS
topographic map (Figure 4) depicts a topographic high along State Road 1502 (Avoca Farm Road).
This high represents the local drainage basin divide separating the Salmon Creek and Black Walnut
Swamp drainages. In the North Carolina Coastal Plain, drainage basin divides often correspond to
groundwater flow divides for the Surficial Aquifer. High grounds are areas of enhanced recharge,

Mr. Conner
Page 4
and groundwater flow patterns in the Surficial Aquifer will flow from areas of recharge to local
surface water features that serve as discharge areas. The USGS topographic map indicates that
Black Walnut Swamp has an average elevation of approximately 3 to 4 feet above mean sea level.
This is more than 6 feet lower elevation than the measured water table at well MW8. Clearly, the
water table elevations at MW7 and MW8 are higher than the average elevation of Black Walnut
Swamp, so groundwater in the vicinity of Sprayfield 5 would flow to the south-southeast toward the
swamp. However, the local vector and gradient of groundwater flow from Sprayfield 5 toward Black
Walnut Swamp could not be determined without an upgradient monitoring well near Sprayfield 5.
Therefore, GMA recommended Avoca construct new monitoring well MW10 on the north-northwest
side of Sprayfield 5 to pinpoint local groundwater flow direction, and conduct an updated monitoring
event.
GMA reviewed November 26, 2019, top of well casing elevation survey and water -level data
provided by Avoca for each monitoring well, and we prepared an updated equipotential map (water
table elevation contour map) (Figure 3) that includes the recently constructed monitoring well
MW10. Survey and water -level data are included as an attachment. As anticipated, the November
26, 2019, water -level data indicates that groundwater south of SR 1502 flows south-southeast
toward Black Walnut Swamp. As indicated on the equipotential map, monitoring well MW10, should
be considered an "up -gradient" well. Monitoring wells MW7, and MW8 should be considered "clown -
gradient" wells.
Similarly, groundwater north of SR 1502 flows toward the north and east toward Salmon Creek. The
three monitoring wells in that area (MW4, MW5, and MW6R/9) allow for local triangulation to depict
the gradient and direction of groundwater flow in the Surficial Aquifer in the vicinity of Sprayfield 4.
Monitoring well MW6R/9, should be considered an "up -gradient" well. Monitoring wells MW4, and
MW5, should be considered "down -gradient' wells.
Water Quality Data Review
GMA reviewed historical and recent water -quality data (see attached) supplied by Avoca from the six
monitoring wells at the facility. Periodic exceedances of nitrate and ammonia have occurred in some
of the wells.
Monitoring Well MW4
Nitrate has been the persistent constituent detected in well MW4 at concentrations exceeding the
groundwater quality standards. However, well MW4 is across a permanent stream (unnamed
tributary to Salmon Creek). The stream is a groundwater discharge boundary that has lower
elevation than the water table monitored at MW4. Thus, MW4 is not within the groundwater flow
system associated with Sprayfield 4. Rather, MW4 is downgradient of the agricultural field to the
south-southeast. In contrast, well MW5 occurs downgradient of Sprayfield 4, and MW5 is within the
local groundwater flow system associated with that sprayfield. Well MW5 does not exhibit nitrate
concentrations above the groundwater quality standard. It is apparent that the groundwater quality

Mr. Conner
Page 5
monitored in well MW4 is not representative of conditions associated with wastewater irrigation at
Sprayfield 4. More likely, the occurrence of elevated nitrate observed at MW4 is a background
condition associated with farming activities south and southeast of well MW4.
Monitoring Wells MW8 and MWI0
Samples collected from well MW8 have periodically contained ammonia at concentrations exceeding
the "Interim Maximum Allowable Concentration" (IMAC) listed in the North Carolina Groundwater
Quality Standards (15A NCAC 02L). Monitoring well MW10 was placed upgradient of Sprayfield 5 to
evaluate if background groundwater quality conditions include elevated ammonia. The November
2019 sampling of MW10 indicated <0.04 mg/L of ammonia, and 1.47 mg/L of nitrate. These
concentrations are below the groundwater quality standards. Likewise, concentrations of ammonia
and nitrate measured in the November 2019 sampling from well MW8 were below the groundwater
quality standards. Current operation of Sprayfield 5 does not appear to be causing a groundwater
quality violation for ammonia or nitrate.
GMA advises Avoca to continue to monitor well MW10 during future monitoring events. Well MW10
provides an upgradient sentinel well to evaluate if agricultural activities upgradient of well MW10
might contribute to the overall nitrogen concentrations in the groundwater in the vicinity of
Sprayfield 5. If future exceedances of the ammonia groundwater quality standard are found, those
conditions should be considered relative to the coincident upgradient conditions detected at MW10
at that time.
Conclusions and Interpretations
Based upon GMA's updated evaluations of the Avoca, LLC wastewater irrigation system, we make
the following conclusions:
• The addition of monitoring well MW 10 indicates that a drainage basin divide does occur
near SR1502 (Avoca Farm Road). Wastewater irrigation occurs on two separate spray fields.
Sprayfield 4 lies within the Salmon Creek drainage basin, and Sprayfield 5 lies within the
Black Walnut Swamp drainage basin.
• Groundwater in the Surficial Aquifer on the north side of SR1502 flows northeast toward
Salmon Creek, and groundwater flow on the south side of SR1502 flows south-southeast
toward Black Walnut Swamp.
• Well MW5, placed downgradient of Sprayfield 4, does not exhibit exceedances of the
groundwater quality standards for nitrate or ammonia, indicating that local wastewater
application at Sprayfield 4 is not a source of groundwater standards exceedances for those
constituents.
• Well MW4 has a history of groundwater standard exceedances for nitrate. This well lies
across an unnamed tributary of Salmon Creek from Sprayfield 4. The unnamed tributary is a
groundwater discharge area for the Surficial Aquifer. Therefore, MW4 is not within the same
local groundwater system as Sprayfield 4. Elevated nitrate concentrations observed at MW4
are more likely associated with farming activities on immediately adjacent properties to the

Mr. Conner
Page 6
south. GMA's opinion is that the groundwater quality conditions exhibited by MW4 are most
likely a background condition that is not associated with wastewater application at Sprayfield
4.
Sprayfield 5 has three local monitoring wells (MW7, MW8, and MW10). As indicated on the
equipotential map, groundwater south of SR 1502 flows toward the south and east toward
Black Walnut Swamp. Monitoring well MW10, should be considered an "up -gradient" well
relative to Sprayfield 5. Monitoring wells MW7, and MW8 should be considered "down -
gradient" wells for that sprayfield.
In November, 2019, ammonia concentrations at MW 8 and MW10 were below the
groundwater quality standards. The lack of ammonia at MW10 may not be unusual
depending on farming activities at the property adjacent to Sprayfield 5 prior to the sampling
event in November 2019. If future monitoring events reveal elevated ammonia
downgradient of Sprayfield 5, the reported concentrations must be compared to the
corresponding concentrations at MW10 to determine if the observed conditions are related
to wastewater application versus variations in background concentrations of ammonia from
activities upgradient of MW10.
GMA recommends the following activities:
Continued monitoring events to include water -level measurements and water -quality
sampling of all wells.
Utilize the new monitoring data to refine the groundwater flow understanding as well as to
determine the background water -quality near Sprayfield 5.
Interpret future water -quality results with consideration of the corresponding background
conditions at the time of sampling.
GMA appreciates the opportunity to provide consulting services to Avoca. If requested, we will be
happy to assist with further evaluation of future monitoring data that Avoca collects.
Please contact me with any questions that you may have.
Sincerely,
Groundwater Managementt Oy,y
NSFO ��y'
SEAL
Kelley A. Smith, P.G. 2355
Project Hydrogeologist�� C �_
L
CC: John Wise, P.E. —GMA y��yNqLpNM,���''�
James K. Holley, P.G. - GMA
Z:\GMA\162501 Avoca Farms -Merry Hill\Phase II 2019\UPDATED_Avoca_NOV Eva luation_20200302.docx

FIGURES

FIGURE 2. - AVOCA FARMS, MERRY HILL, NC -WASTEWATER IRRIGATION - W.L. ELEVATION (FT. MSL)
16.00
14.00
12.00
10.00
w -*--MW4
tMW5
w 8.00 -/-MW7
tMWB
z
H
a t M W 9/6R
6.00
--4_-- M W 10
4.00
2.00
0.00
3/23/2016 10/9/2016 4/27/2017 11/13/2017 6/1/2018 12/18/2018 7/6/2019 1/22/2020
DATE

A
FAND
IS PRODUCT IS FOR GENERAL REFERENCE PURPOSES ONLY AND SHOULD NOT BE USED, O
IS NOT INTENDED, FOR SURVEY OR ENGINEERING PURPOSES. LOCATIONS ARE APPROXIMATE.
SOURCE DATA:RCEL BOUNDARIES AND SURFACE WATER INFORMATION OBTAINED FROM NC ONEMAP.
1:24,000 USGS TOPO IMAGERY OBTAINED FROM ARCGIS ONLINE. "`/y; ; '#
MW5
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BLACK 1A ALN1 MIS V MP
LEGEND
MONITORING WELLS --- ROAD CENTERLINE SCALE IN FEET
SITE SURFACE WATER 0--�I750' GMA
15 EQU I POTENTIAL CONTOURS (FT) PARCEL BOUNDARIES
0 GW FLOW DIRECTION CONTOUR INTERVAL = 1 FT.
File: DRAW NGS/162501/ AVOCA, LLC, WASTEWATER SPRAYFIELD EVALUATION Date: 2/26/2020
AVOCA _WL_ELEV_TOPO_DATE_20191126 EQUIPOTENTIAL MAP 20191126
Project No. 162501 AVOCA FARMS, MERRY HILL, BERTIE COUNTY, NC Figure 4

SURVEY DATA

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WATER -LEVEL DATA

WATER -LEVEL DATA
Measuring Point
Elevation (ft. MSL
Well 4
Measuring
Point Elev.
(ft. MSL)
14.34
Well 5
Measuring
Point Elev.
(ft. MSL)
14.37
Well 7
Measuring
Point Elev.
(ft. MSL)
18.85
Well 8
Measuring
Point Elev.
(ft. MSL)
15.97
Well 6R/9
Measuring
Point Elev.
(ft. MSL)
21.58
Well 10
Measuring
Point Elev.
(tt. MSL)
21.58
WELL ID
Well 4
Well 5
Well 7
Well 8
Well 6R/9
Well 6R/9
DATE
Depth
Elev. (ft.
MSL)
Depth
Elev. (ft.
MSL)
Depth
Elev. (ft.
MSL)
Depth
Elev. (ft
MSL)
Depth
Elev. (ft.
MSL)
Depth
Elev. (ft.
MSL)
3/23/2016
10.10
4.24
8.20
6.17
7.40
11.45
5.70
10.27
7/20/2016
10.60
3.74
8.80
5.57
7.40
11.45
6.60
9.37
11/16/2016
10.60
3.74
8.50
5.87
7.00
11.85
7.20
8.77
3/27/2017
10.80
3.54
8.00
6.37
10.20
8.65
12.90
3.07
7/27/2017
10.90
3.44
9.70
4.67
13.80
5.05
15.20
0.77
11/16/2017
10.80
3.54
9.50
4.87
8.00
10.85
7.70
8.27
12.8
8.78
3/29/2018
10.60
3.74
8.50
5.87
6.90
11.95
7.40
8.57
11.4
10.18
7/12/2018
11.10
3.24
9.50
4.87
9.20
9.65
7.80
8.17
9.3
12.28
11 /29/2018
11.20
3.14
8.60
5.77
7.70
11.15
7.30
8.67
11.8
9.78
2/27/2019
10.30
4.04
7.55
6.82
5.88
12.97
5.44
10.53
10.79
3/26/2019
11.60
2.74
13.40
0.97
6.40
12.45
14.40
1.57
11.5
7/23/2019
10.70
3.64
10.80
3.57
8.30
10.55
7.00
8.97
9.8
Att
11/26/2019
11.30
3.04
11.50
2.87
8.30
10.55
8.90
7.07
10.7
7.8
15.39

WATER QUALITY DATA

GROUNDWATER ANALYTICAL RESULTS SUMMARY - INORGANICS
WASTE WATER TREATMENT AND SURFACE IRRIGATION PERMIT No. WQ0005910
MERRY HILL, BERTIE COUNTY, NORTH CAROLINA
Sample Location - MW-4
v
Sample
ins
o��
°�
`o
E�
x
u
Date Samples Collected
�+ eo
E m
w
0 m
0o
eo
eo
o.
a, °-
Location ID
E
a E
z E
~ E
E
.2 E
m E
m
�
0
0
H
NC 2L Ground Water Standard (mg/L)
1.50
10.00
10.00
500.0
8.5 (max)
N/A
3/23/2016
< 2.7
< 0.04
< 0.04
< 1.00
28.0
304.0
0.049
5.88
18.0
7/20/2016
< 2.6
< 0.04
14.88
< 1.00
26.0
358.0
0.051
5.83
19.0
11/16/2016
< 2.5
< 0.04
11.70
< 1.00
41.0
314.0
0.049
6.22
20.0
3/27/2017
2.90
< 0.04
5.96
< 1.00
24.0
280.0
0.052
5.48
17.3
7/27/2017
< 2.5
< 0.04
13.50
< 1.00
26.0
324.0
0.049
6.04
18.4
11/16/2017
< 2.5
< 0.04
9.32
< 1.00
28.0
316.0
0.051
6.60
20.1
MW-4
3/29/2018
3.10
< 0.04
16.60
< 1.00
26.0
314.0
0.052
7.28
20.0
7/12/2018
< 2.5
< 0.04
13.04
< 1.00
25.0
352.0
0.038
6.52
20.1
11/29/2018
< 2.5
< 0.04
< 1.00
25.0
295.0
0.056
6.14
19.2
3/1/2019
<2.5
0.06
12.14
1.03
25.0
315.0
0.058
17.2
7/1/2019
2.70
0.16
10.50
<1.00
24.0
326.0
0.034
19.0
11/26/2019
0.10
1 10.84
<1.0
1 24.0
1 314.0
21.4

GROUNDWATER ANALYTICAL RESULTS SUMMARY - INORGANICS
WASTE WATER TREATMENT AND SURFACE IRRIGATION PERMIT No. WQ0005910
MERRY HILL, BERTIE COUNTY, NORTH CAROLINA
Sample Location - MW-5
0
o
Sample
w�
o
°�
w�
E:7
°
Location ID
Date Samples Collected
P oo
E
E m
E
eo
Z E
O m
�- E
000
E
-' to
0o
m E
CL
w o
Q
o f
w
0
0
NC 2L Ground Water Standard (mg/L)
1.50
10.00
10.00
500.0
8.5 (max)
N/A
3/23/2016
14.00
0.30
< 0.04
2.21
68.0
697.0
0.031
4.65
19.0
7/20/2016
9.50
0.08
2.72
2.17
72.0
716.0
0.029
4.91
21.0
11/16/2016
5.50
0.09
< 0.04
2.18
61.0
664.0
0.029
4.74
21.0
3/27/2017
3.00
0.11
0.11
2.30
59.0
604.0
0.029
4.46
18.1
7/27/2017
17.00
0.10
0.12
2.92
56.0
686.0
0.030
5.79
20.1
MW-5
11/16/2017
11.00
0.07
<0.04
2.50
51.0
663.0
0.035
4.68
20.5
3/29/2018
3.40
0.10
0.18
2.38
48.0
655.0
0.030
5.07
19.3
7/12/2018
3.50
0.09
< 0.04
2.39
44.0
648.0
0.027
4.79
22.9
11/29/2018
< 2.5
< 0.04
< 1.00
25.0
1 295.0 1
0.056
5.74
17.7
3/1/2019
4.20
0.15
<0.04
2.79
1 39.0
613.0
0.029
19.8
7/1/2019
11.00
0.18
<0.04
2.89
37.0
617.0
0.029
22.7
11/26/2019
0.17
<0.04 1
2.46
1 33.0
584.0
21.0

GROUNDWATER ANALYTICAL RESULTS SUMMARY - INORGANICS
WASTE WATER TREATMENT AND SURFACE IRRIGATION PERMIT No. WQ0005910
MERRY HILL, BERTIE COUNTY, NORTH CAROLINA
Sample Location - MW-6
o
w
Sample
o�
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=
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Date Samples Collected
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Location ID
E
Q E
Z E
E
� E
o f
E
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a`mo
0
0
NC 2L Ground Water Standard (mg/L)
1.50
10.00
10.00
500.0
8.5 (max)
N/A
3/23/2016
< 2.7
< 0.04
2.03
< 1.00
34.0
252.0
0.041
5.710
18.00
7/20/2016
23.00
< 0.04
2.38
< 1.00
32.0
285.0
0.061
6.020
19.00
11/16/2016
< 2.6
0.11
3.49
< 1.00
28.0
245.0
0.038
5.650
19.50
3/27/2017
< 2.6
< 0.04
2.73
< 1.00
27.0
210.0
0.035
4.940
17.40
7/27/2017
< 2.6
0.31
2.36
1.30
29.0
217.0
0.033
6.350
1 18.20
MW-6
MW-6 was closed. MW-9 replaced it.

GROUNDWATER ANALYTICAL RESULTS SUMMARY - INORGANICS
WASTE WATER TREATMENT AND SURFACE IRRIGATION PERMIT No. WQ0005910
MERRY HILL, BERTIE COUNTY, NORTH CAROLINA
Sample Location - MW-7
0
•o
m
Sample
M
o��
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N
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Date Samples Collected
V+ m
m
m
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to
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on
c
a o
Location ID
E
E
Z E
�- E
E
o f
m E
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Q
d
m
f-
0
NC 2L Ground Water Standard (mg/L)
1.50
10.00
10.00
500.0
8.5 (max)
N/A
3/23/2016
< 2.7
< 0.04
1.00
3.92
43.0
268.0
0.037
5.070
17.00
7/20/2016
< 2.7
< 0.04
1.11
4.08
38.0
279.0
0.034
4.650
24.00
11/16/2016
< 2.5
0.12
1.05
4.73
34.0
267.0
0.042
4.900
22.00
3/27/2017
8.90
0.04
1.18
4.70
35.0
210.0
0.032
5.700
14.70
7/27/2017
21.00
0.05
1.12
5.09
37.0
285.0
0.034
5.490
23.90
M W-7
11/16/2017
4.00
< 0.04
0.35
1 4.44
41.0
283.0
0.025
4.610
20.70
3/29/2018
266.00
0.06
1.15
4.29
22.0
182.0
0.056
5.230
19.20
7/12/2018
409.00
< 0.04
1.09
4.17
27.0
265.0
0.052
4.760
24.40
11/29/2018
13.00
< 0.04
3.09
15.0
194.0
0.035
59.200
15.50
3/1/2019
2.50
0.08
1.81
4.33
18.0
237.0
1 .0281
17.1
7/1/2019
1 9.30
0.18 1
2.22
4.52
16.0
221.0
0.021
26.4
11/26/2019
0.12 1
2.13
1 3.75
1 16.0
1 211.0
20.3

GROUNDWATER ANALYTICAL RESULTS SUMMARY - INORGANICS
WASTE WATER TREATMENT AND SURFACE IRRIGATION PERMIT No. WQ0005910
MERRY HILL, BERTIE COUNTY, NORTH CAROLINA
Sample Location - MW-8
0
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Location ID
E
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m£
V
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NC 2L Ground Water Standard (mg/L)
1.50
10.00
10.00
500.0
8.5 (max)
N/A
3/23/2016
8.60
0.54
0.56
4.39
71.0
408.0
0.112
5.870
17.00
7/20/2016
5.30
1.22
0.53
5.40
66.0
440.0
0.129
6.190
23.00
11/16/2016
5.40
0.62
0.44
3.88
41.0
382.0
0.105
5.700
21.00
3/27/2017
11.00
0.98
0.17
5.54
28.0
260.0
0.100
6.150
16.20
7/27/2017
5.80
2.37
< 0.04
14.59
17.0
481.0
0.122
6.270
27.80
11/16/2017
8.40
1.05
0.55
3.90
31.0
423.0
0.090
6.510
19.90
MW 8
3/29/2018
34.00
1.03
0.24
10.48
1 13.0
399.0
0.147
6.550
17.70
7/12/2018
38.00
1.53
0.05
11.04
33.0
524.0
0.142
6.490
23.70
11/29/2018
31.00
2.08
6.9S
26.0
433.0
0.124
6.440
15.40
3/1/2019
6.60
0.65
0.70
4.49
28.0
378.0
0.096
16.5
7/1/2019
31.00
3.21
1 0.12
8.84
22.0
480.0
0.195
25.4
11/26/2019
1.14
1 0.05
13.12
20.0
399.0
20.3

GROUNDWATER ANALYTICAL RESULTS SUMMARY - INORGANICS
WASTE WATER TREATMENT AND SURFACE IRRIGATION PERMIT No. WQ0005910
MERRY HILL, BERTIE COUNTY, NORTH CAROLINA
Sample Location - MW-9 6R
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ar
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m
°
a
E
is
H
O
F
NC 21. Ground Water Standard (mg/L)
1.50
10.00
10.00
500.0
8.5 (max)
N/A
11/16/2017
43.00
< 0.04
1.47
1.73
32.0
271.0
0.050
6.240
20.20
3/29/2018
220.00
0.04
0.73
1.01
28.0
271.0
0.070
5.630
18.50
7/12/2018
39.00
< 0.04
3.10
1.35
26.0
314.0
0.069
5.620
21.10
MW-9
11/29/2018
114.00
<0.04
<1.00
33.00
246.0
1 0.065
5.53
17.1
3/1/2019
24.00
0.12
2.11
<1.00
37.0
246.0
0.062
17.4
7/1/2019
91.00
0.21
4.43
1.13
35.0
291.0
0.075
22.1
11/26/2019
0.09
7.56
<1.00
37.0
407.0
20.5

GROUNDWATER ANALYTICAL RESULTS SUMMARY - INORGANICS
WASTE WATER TREATMENT AND SURFACE IRRIGATION PERMIT No. WQ0005910
MERRY HILL, BERTIE COUNTY, NORTH CAROLINA
Sample Location - MW-10
o
a
Sample
o�
��
72
d�
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=
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Date Samples Collected
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~
en
E£
m
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oo
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00
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a '�
Location ID
E
Z
E
o f
m E
u
o
00
E
�o
ai
Fw
0
NC 2L Ground Water Standard (mg/L)
1.50
10.00
10.00
500.0
8.5 (max)
N/A
MW-10 11/26/2019
43.00
<0.04
1.47
1.73
32.0
271.0
1 0.050
1 6.240
20.90

GROUNDWATER ANALYTICAL RESULTS SUMMARY - INORGANICS
WASTE WATER TREATMENT AND SURFACE IRRIGATION PERMIT No. WQ0005910
MERRY HILL, BERTIE COUNTY, NORTH CAROLINA
Sample Location - POND EFFLUENT
Sample
Location ID
Date Samples Collected
O m
coE
v m
F E
E m
E E
Q �
x m
~ E
d m
, E
a m
g E
v m
u E
E
1 m
m E
om'- m
vo E
a
CL
`w o
CL
E
NC 2L Ground Water Standard (mg/L)
1500
500.0
8.5 (max)
N/A
3/26/2016
16470
181
0.54
54.500
0.43
69.20
43.63
38.32
149.70
1.3
6.28
19.0
7/20/2016
3480
130
0.40
43.040
0.30
6.16
49.56
26.87
104.00
2.9
7.50
34.0
11/16/2016
5450
70
0.06
22.520
0.19
57.60
18.64
5.60
73.62
3.8
7.23
16.0
3/27/2017
6050
13
0.09
23.440
0.23
1.09
11.18
4.13
99.60
6.4
6.99
20.3
7/27/2017
< 1480
164
0.08
33.000
0.33
3.18
10.24
3.48
103.00
7.1
7.07
29.9
11/16/2017
3815
295
<0.04
30.100
0.28
27.60
8.69
2.82
86.77
6.5
7.52
18.5
POND
3/29/2018
6947
331
0.05
5.920
0.33
12.12
11.03
3.25
78.06
5.3
6.54
18.7
7/12/2018
6033
352
0.05
< 0.2
0.12
4.04
9.46
3.34
104.10
7.4
6.57
31.8
11/29/2018
5083
103
0.04
14.720
0.15
0.80
7.81
2.09
89.27
7.3
7.04
12.8
3/1/2019
5355
71
<0.04
10.48
0.09
1.04
36.710
2.75
121.40
5.2
20.6
7/1/2019
<1430
192
<0.04
30.12
4.68
27.536
4.41
112.98
5.3
22.8
11/26/2019
3665
170
<0.04
593.60
0.33
48.00
16.280
3.78
130.18
7.6
18.1