1101_Buncombe_MSWLF_GWCA_SupplementalRemedy_FID1819743_20231026

� CANNONS
ENGINEERING
October 24, 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: Selection of Remedy Application
Phytoremediation (Supplemental Remedy)
Old Buncombe County Landfill
Woodfin, North Carolina
Permit Number 1101-MSWLF-1979
BLE Project Number J23-14175-10
Dear Ms. Drummond:
Buncombe County selected the following remedies for corrective action to address groundwater
compliance issues as required by Solid Waste Rule 15A NCAC 13B .1636 (a):
Primary Remedies
Fencing (Institutional Control)
Landfill Gas Mitigation (Source Control)
Restrictive Cover Improvements (Source Control)
Monitored Natural Attenuation [MNA] (Groundwater Compliance)
In Situ Enhanced Bioremediation (Groundwater Compliance)
Technical specifications and schedules for remedy implementation pursuant to Rule 15A NCAC 13B
.1636 (c-d) were described in the Solid Waste Section (SWS) approved Corrective Action Plan (CAP)
dated September 3, 2014 [DIN 21838] which was prepared by SCS Engineers, PC (SCS) [SCS
Engineers File No 09204072.061.
Bunnell-Lammons Engineering, Inc. (BLE) prepared a Corrective Action Evaluation Report (CAER)
dated March 30, 2022 [FID 1661864 (BLE Project No. J20-14175-03)] which evaluated the status of
remedial progress at the facility in accordance with the rules and the CAP. BLE recommended that a
phased approach for phytoremediation be evaluated as a voluntary supplemental remedy to address
volatile organic compound (VOC) compliance issues at the site. The CAER was approved by the
SWS on April 12, 2022 (FID 1664186).
BLE completed Phase I of an evaluation of phytoremediation as a voluntary supplemental remedy
in 2022 and 2023 and issued a report titled Phytoremediation Assessment Report dated August 23,
2023 (BLE Project No. J22-14175-07). The report concluded that data indicates that phytoremediation
is a viable remedy for the VOC impacts to groundwater at the site. The report recommended that the
facility proceed directly with Phase II and Phase III of the phytoremediation plan pathway in general
accordance with the SWS approved CAER.
6004 Ponders Court. Greenville. SC 29615 (,864.288.1265 N864.288.4430 �[e-mail]
BLECORMOM

1s 1m 11
Selection of Remedy Application October 24, 2023
Old Buncombe County Landfill — Woodfin, North Carolina BLE Project No. J23-14175-10
Phase II is this selection of remedy in accordance with the solid waste rules. An executed North
Carolina Solid Waste Groundwater Corrective Action Application form is attached to this letter to
add the voluntary supplemental remedy as required.
Phase III will include submittal of a CAP addendum which may include: 1) preparation of design
plans; 2) preparation of bid packages and contractor selection; 3) procurement of selected flora; 4)
the installation of flora and irrigation; and 5) ongoing monitoring and maintenance (inspection,
testing, and normal horticultural practices). We anticipate the CAP addendum will be submitted to
the SWS on or before May 31, 2024.
The attached application has been signed by a designated representative of Buncombe County and
signed and sealed by a North Carolina professional geologist as required.
Note that site maps, conceptual plans, lists of permits, etc., and the facility closure letter are present
in the SWS maintained facility records and are therefore not attached to this document. Also note
that a public meeting and adjacent property owner notification is not applicable to this application.
Sincerely,
BUNNELL-LAMMONS ENGINEERING, INC.
ery J. Downes, P.G.
Project Geologist
Registered, NC No. 2618
4 W
/ a �
Andrew W. Ales der, P.G., RSM
Consultant Hydrogeologist
Registered, NC No. 1475
Attachments: Appendix A - North Carolina Solid Waste Groundwater Corrective Action Application
Copy: Mr. Dane Pedersen — Haywood County
Ms. Kristy Smith — Haywood County
Mr. Riley Blais, G.I.T — BLE
2

APPENDIX A
North Carolina Solid Waste Groundwater
Corrective Action Application

North Carolina Solid Waste Groundwater Corrective Action Application
Groundwater quality at this solid waste management facility is subject to the "Classifications and Water Quality
Standards Applicable to the Groundwaters of North Carolina," 15A NCAC 2L.
Due to groundwater exceedances at this solid waste management facility, groundwater corrective action is required to be
implemented. First, a selected remedy should be proposed for Solid Waste Section approval. A public meeting is not a
requirement for this facility at this time, however, the Solid Waste Section highly recommends conducting a voluntary
public meeting and also notifying all adjacent property owners regarding the contamination and the proposed selected
remedy. Then once the Solid Waste Section approves a selected remedy for this facility, a Corrective Action Plan (CAP)
will be required to be submitted for approval prior to its implementation.
Please complete the North Carolina Solid Waste Groundwater Corrective Action Application and please attach the
following:
(1) a signed resolution/proclamation/document adopting the proposed selected remedy;
(2) a site map designating the locations of the groundwater monitoring wells and surface water monitoring
locations that will or may be impacted by the proposed selected remedy;
(3) any draft conceptual schematics/figures/plans relating to the proposed selected remedy;
(4) a list and copies of any required registrations, permits, notifications, and approvals;
(5) a copy of the facility's closure letter issued by the Solid Waste Section (if available);
(6) if a public meeting is conducted, a copy of the minutes (if applicable); and
(7) if adjacent property owner notification is conducted, a copy of the notification letter and a copy of the
certified receipt.
Please e-mail the completed application in addition to the attachments to the Project Manager or mail to NCDENR-
DWM, Solid Waste Section, Compliance Unit, 1646 Mail Service Center, Raleigh, NC 27699-1646. This application and
any documents attached to this application are "Public Records" as defined in NC General Statute 132-1. As such, these
documents are available for inspection and examination by any person upon request (NC General Statute 132-6).
Please type all information.
I. Site Identification
Permit Number: 1101-MSWLF-1979
Facility Name:
Old Buncombe County Landfill
Facility Physical
City:
Address: 2726 Riverside Drive
Woodfin, NC
ZIP Code:
28804
County:
Buncombe
Waste Type:
MSW, ISW, C&D
II. Owner and Operator Information
Owner
Name: Buncombe County, North Carolina
Address:
81 Panther Branch Road, Alexander, NC 28701
Phone Number:
864-250-5460
E-mail Address:
[e-mail]
NC GWCA Application 2014 Page 1 of 2

III. Groundwater Corrective Action
Proposed Selected Remedy: Primary Remedies plus Phytoremediation (supplemental)
Proposed Contingency Plan A:
Proposed Contingency Plan B:
IV. Project Schedule (Upon Division Approval)
Approximate Date of Implementation of Remedy: TBD - Late 2024
Approximate Date of Remedy Construction Completion (if applicable):
Approximate Date of Submittal of the Corrective Action Evaluation Report (CAER): Due Mid 2027
V. Environmental Consultant
Consulting Company Firm: BLE, Inc.
Contact Person: Andrew W. Alexander, PG, RSM
Address: 6004 Ponders Ct, Greenville, SC 29615
Phone Number: 864-288-1265
E-mail Address: [e-mail]
VI. Signatures
To the best of my knowledge, the information reported and statements made in this North Carolina Solid Waste
Groundwater Corrective Action Application are true and correct. I am aware that there are significant penalties for
making any false statement, representation, or certification including the possibility of fine and imprisonment.
er
Owner Name (Printed or Typed): Dane Pedersen, Solid Waste Director
er
Owner Name (Printed or Typed):
16/1-1/' Q53
Date
aA /
2023-10-26
NC Professional Geologist or NC Professional Engineer Date
Name (Printed or Typed): Andrew W. Alexander, PG, RSM
Affix NC Professional Geologist or Engineer Seal:
NC GWCA Application 2014 Page 2 of 2