6301_Moore_CDLF_MSWLF_WellAbandonment_FID1284993_20190220

G GOLDER
February 20, 2019
Jaclynne Drummond, Hydrogeologist
Solid Waste Section, Division of Waste Management
North Carolina Department of Environmental Quality
2090 US Highway 70
Swannanoa, NC 28778
REQUEST TO DECOMMISION MONITORING WELLS MW-16S AND MW-16D
MOORE COUNTY LANDFILL, NC SWP#63-01
Dear Jackie,
0739615018
On behalf of Moore County, NC (the County), Golder Associates NC, Inc. (Golder) has prepared this request to
abandon monitoring wells MW-16S and MW-16D, which are currently part of the compliance monitoring network
at the Moore County Landfill in Aberdeen, NC. The monitoring well pair MW-16S/D is located within the footprint
of the next proposed horizontal expansion of the construction and demolition (C&D) landfill as shown on the
attached Figure 1 and was last sampled in December 2018 as part of the routine monitoring at the facility. As
previously discussed with NC Department of Environmental Quality (NC DEQ), Golder is currently preparing an
application for permit to construct the next horizontal expansion (Cell VI). As part of this process the County has
already installed a replacement for this well pair (i.e., MW-17S and MW-17D) outside of the proposed Cell VI
limits of waste.
The County is currently using the area surrounding the monitoring well pair MW-16S/D as a borrow area. As the
County removes more soils from this area, there is a concern that the monitoring well integrity will be
compromised potentially creating a pathway for surficial impacts during construction to reach the water table. Due
to these site activities the County would like to request permission to properly decommission the monitoring well
pair MW-16S/D and replace them within the compliance monitoring network with the recently installed MW-17S/D
during future monitoring events.
If you have any questions regarding this request, please contact the undersigned at [phone].
Golder Associates NC, Inc.
5B Oak Branch Drive Greensboro, North Carolina, USA 27407
T: [phone] [phone]
Golder and the G logo are trademarks of Golder Associates Corporation golder.com

Jaclynne Drummond, Hydrogeologist 0739615018
Solid Waste Section, Division of Waste Management February 20, 2019
Sincerely,
Golder Associates NC, Inc.
Benjamin S. Draper, PG, PMP
Senior Project Geologist
BSD/RPK/bsd
- aec�� 0�
Rachel P. Kirkman, PG
Associate and Senior Consultant
CC: Chad Beane, Solid Waste and Recycling Division Manager, Moore County
Attachments: Figure 1 — Groundwater Surface Contour Map — June 20, 2018
g:lprojecWmoore county\0739615018 - moore -env services1p300 -general consultingVequest to abandon mw-16s-d\2019-02-19 abandonment
requesl.docx
4 GOLDER 2

LEGEND
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GROUND OBSCURED
SEE ACCURACY NOTE
—
STREAM, POND, AND WETLAND LIMITS
EXISTING 10 FT GROUND SURFACE CONTOUR
EXISTING 2 FT GROUND SURFACE CONTOUR
PROPERTY LINE
APPROXIMATE LIMITS OF WASTE
EXISTING ROAD
POTENTIOMETRIC GROUNDWATER CONTOURS (5 FT. INTERVAL)
_
GROUNDWATER FLOW SEGMENTS
MW-1
0 382.91385
MONITORING WELL AND IDENTIFICATION
GP-100-
METHANE PROBE AND IDENTIFICATION
❑ SW-1
SURFACE WATER MONITORING POINT AND IDENTIFICATION
LANDFILL GAS TRENCH VENTS AND IDENTIFICATION
\
PASSIVE LANDFILL GAS VENTS
0 PW-1
PRIVATE WELL LOCATION AND IDENTIFICATION
+l%
WETLAND AREA
SB-2
SOIL SAMPLE LOCATIONS
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PIEZOMETERS
NOTES
MW-16S\ - —_ MW-7
368.10\ _,3 V3$6.741 F =
�,D 1p � 'I",, z I � ` / - 0 1 ` 1 1. TOPOGRAPHIC CONTOUR INTERVAL 2 FEET
MW-17S� A�
363.95 M ,- -1 ;D
�367.96 \ ` 40 13 o ly 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 5 FEET
MW-17D \ iavz
P-141 C I ` o o 3. GROUNDWATER ELEVATIONS MEASURED ON NOVEMBER 27, 2018.
GP-14R_, �� 0 0 00 \ \ 4. GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN AND
-0-PZ-2 \ ` i' 7 vIW-1 8 © EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD
367.36,— NW-1 GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL
4jr74.82J ./ '���\� _ �� 0 0 ° CONDITIONS. THEREFORE
�. CONDITIONS.
v s 3B° / -- FS \ 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE
1 P� "0 PZ73
� 368.---\ O CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A
GP-13R �� \ MW_g ` CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS
^! � ,F • \384.29
"" GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE
/ ` RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS.
MW-18 — ^) /
353.59 y'cN3E V.
6 PROPERTY BOUNDARY SURVEY BY JAMES L. S RELATIVE TO TOPOGRAPHY APPROXIMATE BY IDATEDGHT HDR ENGINNOVEMBER 1984. ITS LOCATION
ENGINEERING, NC.
7 EXISTING TOPOGRAPHY WITHIN ACTIVE AND PROPOSED LANDFILL PROVIDED BY MATTHEWS
e
SITE LOCATION MAP
NOT TO SCALE
,o _ ` \ 10 ` _ — _ �/ \ �� \ _ c— LAND SURVEYING & MAPPING, PLLC DATED APRIL 17, 2015 AND JUNE 2018.
• 3 �
\� y �
GP-12
DENSE VSO— —.. \�
DEG �
w
❑ S W-3
i
(a68. 8_
l
® � sA B-2�1 8. MONITORING WELLS MW-1 THROUGH MW-5 SURVEYED JUNE 1987 BY S&ME, INC. MONITORING
+o . / \ c WELLS MW-6 THROUGH MW-16 SURVEYED APRIL 1995, SEPTEMBER 1996, AND APRIL 2003 BY
�03 3.75 % \ HDR ENGINEERING INC./ ED BUCKNER RLS APRIL 17, 2015.
9. THE LOCATIONS OF LANDFILL GAS TRENCH VENTS ARE APPROXIMATE.
I
10. GROUNDWATER WELLS MW-11 D, MW-13D, AND MW-16D ARE NOT SCREENED IN THE SHALLOW
AQUIFER AND ELEVATION DATA WERE NOT USED IN THE CONSTRUCTION OF GROUNDWATER c
CONTOURS.
11. A STREAM DETERMINATION WAS CONDUCTED ON APRIL 17, 2013 BY A GOLDER ASSOCIATES
NC, INC. REPRESENTATIVE. THE STREAM DETERMINATION WAS CONDUCTED USING NCDWQ'S
382.91,/� ENEE V— O "METHODOLOGY FOR IDENTIFICATION OF INTERMITTENT AND PERENNIAL STREAMS AND L
THEIR ORIGINGS, VERSION 4.11ul
".
\ /6
1Sw 1 Ej� Ul
A4,
/ DEN V ATIONClo
o
CLIENT
MOORE COUNTY
0 200 400
SCALE FEET
PROJECT
MOORE COUNTY LANDFILL
PERMIT NO. 63-01
ABERDEEN, NORTH CAROLINA
CONSULTANT
YYYY-MM-DD
2019-02-14
TITLE
PG C-399
GROUNDWATER SURFACE CONTOUR MAP
PREPARED
KFL
NOVEMBER 27, 2018
GO L D E
R
DESIGN
ALM
REVIEW
BSD
PROJECT Rev.
GOLDER ASSOCIATES NC,
INC.
APPROVED
RPK
0739615018 200 0
DRAWING
1
0