NCS000598_Signatory Delegation20191007

Airgas_,
an Air Liquide company
October 7, 2019
North Carolina Department of Environmental Quality
Division of Energy, Mineral and Land Resources
Winston-Salem Regional Office
450 West Hanes Mill Road
Suite 300
Winston-Salem, NC 27105
Attention: Director
Division of Energy, Mineral and Land Resources
Subject: Delegation of Signatory Authority
NPDES Permit No. NCS000598
Airgas USA, LLC — Mebane, North Carolina ASU
Mebane, Alamance County, North Carolina
Dear Director:
This letter serves to designate the following person or position as duly authorized personnel for signing
all reports required by National Pollutant Discharge Elimination System (NPDES) Permit for Stormwater
Discharges Associated with Industrial Activity, the stormwater pollution prevention plan, certifications
and other information requested by the Director at the Airgas USA, LLC Mebane, North Carolina Air
Separation Unit Plant.
Plant Manager — Mebane, NC
By signing this authorization, I confirm that I meet the requirements to make such a designation as set
forth in 40 CFR 122.22 and as stipulated in the NPDES Permit No. NCS000598.
Sincerely
Thomas Stringer
Vice President
Production & Project Execution, Airgas Merchant Gases
cc: File
Rodney St. John — Mebane ASU Plant Manager