NCG020273_Dormant Status Approval_20221017

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director
NORTH CAROLINA
Environmental Quality
October 17, 2022
Sibelco
Attn: Jeff Ferguson, Sustainability Manager Americas
136 Crystal Drive
Spruce Pine, NC 28777
SUBJECT: Exemption from Monitoring During Dormant Status
Certificate of Coverage #NCG020273
Sibelco — Buna Mine
Mitchell County
Dear Mr. Ferguson:
A Compliance Evaluation Inspection performed at the Buna Quarry on March 25, 2022, by
personnel from this office verified that no industrial activity was taking place at the time of the
inspection. Your recent request to keep the NCG020273 permit, but to discontinue stormwater
monitoring is hereby approved based on the following conditions:
There shall be no industrial activities taking place, no stockpiles of raw materials (to
include chemical additives) stored on the site, or wastewater or stormwater industrial
discharges while the permittee is not monitoring.
No wastewater shall be generated and all wastewater treatment units, if any, shall be
cleaned and stabilized, and inactivated as to render them harmless to the environment
while the site is dormant.
Qualitative and analytical monitoring actions as described in Part III, Sections A, B, C,
D, and E do not have to be conducted — as long as the above conditions and all other
permit conditions and limitations are met, including:
o The annual permit fee must be paid. Failure to nay the annual permit
fee will be considered a violation of the subject permit.
O The Stormwater Pollution Prevention Plan (SPPP) shall be kept updated to
reflect the status of the facility. Updates and conditions of the SPPP of
note are:
The BMP Summary shall be reviewed and updated annually.
Training programs shall be developed, and training provided at
least once a year for facility personnel with responsibilities for:
spill response and cleanup, preventative maintenance activities,
and for any of the facility's operations that have the potential to
contaminate stormwater runoff.
All aspects of the Stormwater Pollution Prevention Plan shall be
reviewed and updated on an annual basis. The annual update shall
D_E Q North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Asheville Regional Office 1 2090 U.S. Highway 70 1 Swannanoa, North Carolina 28778
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include an updated list of significant spills or leaks of pollutants
for the previous three years, or the notation that no spills have
occurred. The annual update shall include written recertification
that the stormwater outfalls have been evaluated for the presence
of non-stormwater discharges. (Should non-stormwater discharges
be discovered the permittee shall contact this office as soon as
possible but in no case greater than 24 hours or the next business
day).
Inspections of the facility and all stormwater systems shall occur as
part of the Preventative Maintenance and Good Housekeeping
Program at a minimum on a semi-annual schedule.
This office must be notified in writing and all components of the stormwater permit
requiring updates made at least 30 days prior to commencing any industrial activity on
the site, even if they are temporary.
A copy of this letter must be maintained with the facility permit and associated plans and
records for the life of the permit.
Should you have any questions, please contact Shawna Riddle at [phone] or me at
828-296-4500.
Sincerely,
Stane 1 E. Aiken, E _ Regional Engineer
Land Quality Section
Enclosure: Inspection Report
ec: Bethany Georgoulias, Environmental Engineer, (bethany.¢eor og [e-mail])
North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Asheville Regional Office 1 2090 U.S. Highway 70 1 Swannanoa, North Carolina 28778
uwnmmmieow�i d.nn 828.296.4800

Compliance Inspection Report
Permit: NCG020273 Effective: 07/01/21 Expiration: 06/30/25 Owner: Sibelco North America
SOC: Effective: Expiration: Facility: Sibelco North America - Buna Mine
County: Mitchell Hwy 226 N
Region: Asheville
Spruce Pine NC 28777
Contact Person: Jeffrey S Ferguson Title: Phone:[phone] Ext.1602
Directions to Facility:
System Classifications: SWNC,
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 03/25/2022
Primary Inspector: Shawna Riddle
Secondary Inspector(s):
Certification:
Phone:
Entry Time 11:OOAM Exit Time: 11:15AM
Phone: [phone]
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Mining Activities Stormwater Discharge COC
Facility Status: 0 Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page 1 of 3

Permit: NCG020273 Owner -Facility: Sibelco North America
Inspection Date: 03125/2022 Inspection Type : Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Met with Jeff Ferguson for the inspection. Suggested requesting dormanct status for the mine. Not active.
Page 2 of 3

Permit: NCG020273 Owner • Facility: Sibelco North America
Inspection Date: 03/25/2022 Inspection Type : Compliance Evaluation
Reason for Visit: Routine
Stormwater Pollution Prevention Plan
Yes
No NA NE
Does the site have a Stormwater Pollution Prevention Plan?
E
❑ ❑ ❑
# Does the Plan include a General Location (USGS) map?
0
❑ ❑ ❑
# Does the Plan include a "Narrative Description of Practices'?
0
❑ ❑ ❑
# Does the Plan include a detailed site map including outfall locations and drainage areas?
0
❑ ❑ ❑
# Does the Plan include a list of significant spills occurring during the past 3 years?
0
❑ ❑ ❑
# Has the facility evaluated feasible alternatives to current practices?
E
❑ ❑ ❑
If Does the facility provide all necessary secondary containment?
N
❑ ❑ ❑
At Does the Plan include a BMP summary?
❑ ❑ ❑
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
❑ ❑ ❑
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
N
❑ ❑ ❑
# Does the facility provide and document Employee Training?
E
❑ ❑ ❑
# Does the Plan include a list of Responsible Party(s)?
N
❑ ❑ ❑
# Is the Plan reviewed and updated annually?
0
❑ ❑ ❑
# Does the Plan include a Stormwater Facility Inspection Program?
N
❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented?
0
❑ ❑ ❑
Comment
Qualitative Monitoring Yes No NA NE
Has the facility conducted its Qualitative Monitoring? 0 ❑ ❑ ❑
Comment:
Permit and Outfalls
Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? N ❑ ❑ ❑
# Were all outfalls observed during the inspection? 0 1111 ❑
# If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ 0 ❑
# Has the facility evaluated all illicit (non stormwater) discharges? N ❑ ❑ ❑
Comment:
Page 3 of 3