20201025 Ver 2_Monitoring Report 12-22-22_20221222

Sibelco North America, Inc.
136 Crystal Drive • Spruce Pine, NC 28777
(PHONE) 828/765-1114 • (FAX) 828/765-4755
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Ms. Amanda Jones Fuemmeler
Asheville Regulatory Field Office
US Army Corps of Engineers
151 Patton Avenue, Room 208
Asheville, NC 28801-5006
Subject:
Dear Ms. Fuemmeler:
Stream Water Level and Precipitation Monitoring
Sibelco North America, Inc. — Brushy Creek Mine
Action ID SAW-2019-01042 & DWR #202001025
011is Waste Area Expansion
Spruce Pine, North Carolina, Avery County
DEC 2 8 2022
Water Quality Regional Oper Ejcr,:.
Asheville Regional Office
December 22, 2022
Pursuant to United States Army Corps of Engineers Permit (Action ID: SAW-2019-01042)
issued December 15, 2021, and North Carolina Division of Water Resources Permit
DWQ#202001025 Ver 2 issued September 21, 2021, for the impact of a linear stream associated
with the expansion of Sibelco North America, Inc.'s 011is Plant Tailings Waste Area Expansion,
please find enclosed daily flow measurements and daily precipitation totals.
Special Condition P of the Army Corps Permit states "The pressure transducer will be
installed one year prior to the start of construction, monitoring will continue through two years
post -construction of the project. Baseline and Annual monitoring reports will be submitted to the
Corps that include a graph of water level and precipitation data."
In addition, the Division of Water Resources Permit Condition 3 requires annual monitoring
reports, including a graph of water level and precipitation data, be submitted to the DWR by
December 31 each year of monitoring.
A pressure transducer was installed in March of 2022 and baseline data is being collected.
Please find attached graph of this past year's daily flow measurements of the unnamed tributary
immediately downstream of the permitted project, prior to entering Brushy Creek. Additionally,
please find a graph of the daily precipitation data collected at a nearby on -site weather station less
than 1 mile away.
Additional copies of these graphs are being sent to Division of Water Resources personnel
at both the Asheville Regional Office and the 301 & Buffer Permitting Branch. If you have any

Ms. Amanda Jones Fuemmeler
Page 2
questions regarding this matter or require further information, please do not hesitate to contact me
at [phone].
Sincerely,
Jeffrey S. Fefguson, P. E.
Sustainability Manager North America
SIBELCO NORTH AMERICA, INC.
Enclosure
c: Mr. Landon Davidson, DWR Regional Supervisor-ARO, 2090 U.S. Hwy 70, Swannanoa, NC 28778
Mr. Paul Wojoski, Supervisor 401 & Buffer Permitting Branch, 1650 Mail Service Center, Raleigh, NC 27699-1650

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