1107_Buncombe_MSWLF_SoilandSurfaceWaterAssessmentPlan_FID1811018_20230717

� CANNONS
ENGINEERING
July 17, 2023
Solid Waste Section
Division of Waste Management
NCDEQ-ARO
2090 U.S. 70 Highway
Swannanoa, North Carolina 28778
Attention: Ms. Jaclynne Drummond, Hydrogeologist
Subject: Soil and Surface Water Assessment Plan
Buncombe County Landfill
Alexander, North Carolina
Permit No. 1107-MSWLF-1996
BLE Project Number J23-9378-34
Dear Ms. Drummond,
The subject 654-acre landfill site is located in Buncombe County, North Carolina, approximately nine
miles north of the city of Asheville with a physical address of 81 Panther Branch Road in Alexander,
North Carolina (Figure 1). Buncombe County owns and operates a Subtitle D MSWLF which includes
Cell 1 through Cell 7 and a CDLF consisting of Phase 1 through Phase 7. Currently Cell 6 and 7 of the
MSWLF and Phase 7 of the CDLF are the active waste units. MSWLF Cells 8 through 10 are planned
(but not permitted) for future expansion.
On July 3, 2023, Summer Justice and Lee Hill, representing the North Carolina Division of Waste
Management (DWM) — Solid Waste Section (SWS), attended an on -site meeting at the above
referenced facility. On July 10, 2023, the SWS issued a Notice of Violation (NOV) which outlined
the regulatory requirements to address identified compliance issues. Those requirements included
the preparation of a sampling plan (Plan) in general accordance with the SWS Leachate Release
Sampling & Analysis Guidelines (LRG) updated January 5, 2023. Buncombe County retained Bunnell
Lammons Engineering, Inc. (BLE) to discuss the plan requirements with the SWS and to prepare this
document.
'6004 Panders Court. Greenville. SC 29616 (.864.288.1265 H864.298.4430 '_w�in"blecorpxorn
BLECORMOM

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Soil and Surface Water Assessment Plan July 17, 2023
Buncombe County Landfill BLE Project No. J23-9378-34C
Soil and Surface Water Assessment Plan
We understand that during their meeting the SWS observed leachate pooling in the vicinity of the
liner edge at the north slope of Cell 4 and that the SWS observed soil staining leading to a stormwater
ditch that ultimately drains into Sediment Pond 4. It is our understanding that the facility has repaired
the seep and removed and disposed the suspect impacted soil in the MSWLF.
BLE prepared a Sample Location Plan (Figure 2) as required in the LRG. The proposed soil and
surface water sampling locations are shown on the figure. Proposed sample locations and sampling
methodology are described as follows:
Soil Samples
• Background Soil Sample — One background soil sample will be collected from the northeast
corner of the site near the newly constructed Cell 7 to serve as the background for analytical
result comparison. This sample location is designated SS-1 on Figure 2. The background
soil sample may be supplemented with additional historical background soil samples for
metals collected at the facility.
• North of Cell 4 — One soil sample will be collected north of Cell 4, near the Cell 4 edge of
liner and the MW-10 well pair. This sample location is designated SS-2 on Figure 2.
• Storm Water Ditch — One soil sample will be collected within the storm water ditch,
approximately west of the SS-2 location. This sample location is designated SS-3 on Figure
2. We note that surface water enters subsurface stormwater piping at the SS-3 location and
until discharge into Sediment Pond 4.
• Sediment Pond 4 — One soil sample will be collected within Sediment Pond 4 on the northern
bank. This sample location is designated SS-4 on Figure 2.
Surface Water Samples
• Upstream Surface Water Sample — One upstream (background) surface water sample will be
collected at the SW-1 location in Belvin Branch. This location is an existing surface water
quality compliance location for the facility.
• Downstream Surface Water Sample — One downstream surface water sample will be
collected at the SW-6 location in Belvin Branch. This location is an existing surface water
quality compliance location for the facility.
• Sediment Pond 4 — One surface water sample will be collected from Sediment Pond 4.
The soil samples will be discrete samples and will be collected via hand auger (or similar method) at
a depth between one to two feet below ground surface. The surface water samples will be collected
using a dipper sampler. The seven (7) samples will be delivered to a North Carolina certified
analytical laboratory for analysis as specified in the guidance, as follows:
• Appendix I Constituents (Volatile Organic Compounds and Total Metals);
• 1,4-Dioxane;
• Total Phosphorus;
• Sulfate;
• Nitrate; and,
• pH
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Soil and Surface Water Assessment Plan
Buncombe County Landfill
July 17, 2023
BLE Project No. J23-9378-34C
Soil analytical results will be compared to the most current NCDEQ Preliminary Soil Remediation
Goals (PSRGs) Industrial/Commercial* Health Based PSRGs and the Protection of Groundwater
PSRGs. *We understand that the LRG inaccurately lists the standard as Residential. If any tested
parameter is found to exceed only the Protection of Groundwater PSRG, then that soil sample will
be analyzed for the specific parameter by the Synthetic Precipitation Leaching Procedure (SPLP) test
method (SW-846 Method 1312). The SPLP result will be compared to the respective NC2L
groundwater standard.
Surface water analytical results will be compared to the surface water quality standards and
protective values contained in the most current NCDEQ Surface Water Quality Standards Table.
A report summarizing the sampling location, methodology, and analytical results compared to the
standards as stated above and other report elements required in the LRG will be prepared and
submitted to the SWS. Conclusions and recommendations will be based on the analytical results
obtained.
Closing
Buncombe County plans to implement this Soil and Surface Water Assessment Plan within 7 days
after approval by the SWS.
Sincerely,
BUNNELL LAmmONs ENGINEERING INC.
Ril �Iai_s,
Staff Hydrogeologist
cc: Ms. Kristy Smith — Buncombe County
Mr. Dane Pedersen — Buncombe County
Attachments Figure 1 — Site Location Map
Figure 2 —Sample Location Plan
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At/
Andrew W. Al ander, P.G., RSM
Consultant Geologist
Registered, NC #1475

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CHECKED: RLB I CAD: BCLF-34CSLM ENGINEERING
6004 Ponders Court, Greenville, SC 29615
APPROVED: AWA JOB NO: J23-9378-34C Phone: [phone] Fax: (864] 288-4430
REFERENCE:
USGS TOPOGRAPHIC MAP, 7.5 MINUTE SERIES,
LEICESTER AND WEAVERVILLE, N.C. QUADRANGLES,
PHOTOREMSED 2017 AND PHOTOREMSED 2017.
SITE LOCATION MAP I
BUNCOMBE COUNTY LANDFILL
ALEXANDER, NORTH CAROLINA
FIGURE

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LANDFILL OFFICE CONVENIENCE
96 BUILDING CENTER J
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1980 TOPOGRAPHIC CONTOUR * LD—
WASTE UNIT BOUNDARY
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FACILITY BOUNDARY
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O MW-10 EXISTING GROUNDWATER
MONITORING WELL
EXISTING SURFACE WATER
MONITORING LOCATION
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MONITORING WELL
EXISTING STRUCTURE
MONITORED FOR LANDFILL GAS
O MW-7 ^ LD-2
M-2 LEACHATE
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APPROXIMATE SOIL SAMPLE LOCATION
LOCATION TO BE SAMPLED
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REFERENCES:
1) SHEET NO. 1 GROUNDWATER AND METHANE MONITORING WELL LOCATIONS,
CDM SMITH, PROJECT NO. 6447-105257. FILE: SITEMAP 2014.DWG.
2) SURFACE WATER LOCATIONS FROM SHEET NO. 1 GROUNDWATER AND METHANE
MONITORING WELL LOCATION MAP, CDM SMITH, NOVEMBER 2012 PROJECT
NO. 6447-93318. FILE: SITEMAP. DWG.
3) PHASE 6 C&D BOUNDARY PROVIDED BY MCGILL.
4) SHEET NO. OP-1 EXISTING CONDITIONS, CDM SMITH, PROJECT
NO. 6447-97693. FILE: OP-1.DWG.
5) FIGURE NO. 3-1 WATER QUALITY MONITORING PLAN CELL 6 AREA, CDM,
PROJECT NO. 6447, DATED NOVEMBER 2004.
6) SURVEY DATA FOR MW-17R, MW-17DR AND M-12R IN SCS REPORT DATED
OCTOBER 13, 2020
7) SURVEYING FOR MW-18 PERFORMED BY ED HOLMES AND ASSOCIATES DATED
SEPTEMBER 24, 2021
8) PHASE 7 BOUNDARY FROM DRAWING NO. C-7 TITLED C&D LANDFILL SITE
DEVELOPMENT, SCS ENGINEERS, PC. DATED OCTOBER 2021
DRAWN BY: KLW
DATE: 7-17-23
REVISIONS
is 1 IM BUNNELL
LAMMONS
ENGINEERING
6004 Ponders Court, Greenville, 29615
Phone: (864J 288-1265 Fax: (664) 2e 288-4430-4430
SAMPLE LOCATION PLAN
BUNCOMBE COUNTY LANDFILL
ALEXANDER, NORTH CAROLINA
FIGURE
2
No.
DESCRIPTION
BY
CHECKED BY: RLB
FILE: BCLF 9378-34CSLP
APPROVED BY. AWA
JOB NO: J23-9378-34C