NC0084620_Signature Authority_20170914

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Unimin Corporation
121 St. Andrews Ct.
Mankato, MN 56001
(Phone) 507/386-2122
Wastewater Branch
(Fax) 507/386-2110
Water Quality Permitting Section
Division of Water Resources
N.C. Department of Environmental Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Delegation of Signature Authority
Unimin Corporation — Crystal Facility
NPDES Number NC0084620
To Whom It May Concern:
Corporate Environmental Affairs
September 14, 2017
By notice of this letter, I hereby delegate signatory authority to each of the following individuals for all
permit applications, discharge monitoring reports, and other information relating to the operations at
Unimin Corporation — Crystal Facility as required by all applicable federal, state, and local
environmental agencies specifically with the requirements for signatory authority as specified in 15A
NCAC 213.0506.
Sandra Phillips Crystal Plant Manager
Daniel Garland Quartz/Feldspar Environmental Affairs Supervisor
Rick Singleton Red Hill Plant Manager
Carl Horvat Regional General Manager
If you have any questions regarding this letter, please contact Jeff Ferguson at [phone] ext. 1602.
EA Files, Sandra Phillips, Carl Horvat, Rick Singleton, Daniel Garland
Respectfully,
TION
;las S. Losee
Environmental Affairs