NC0004308_Hydrogeological Conceptual Site Model (HCSM)_20231212

Badin Business Park LLC
201 Isabella Street
Suite 500
Pittsburgh, PA 15212-5858 USA
Tel: [phone]
December 11, 2023
Robert C. McDaniel
Hazardous Waste Section
North Carolina Department of Environmental Quality
217 West Jones Street
Raleigh, NC 27699
Re: Hydrogeological Conceptual Model Site Validation
Report Badin Business Park LLC, Badin, North
Carolina EPA ID: NCD 003 162 542
Dear Mr. McDaniel,
Please find accompanied with this letter an electronic link to access the Hydrogeological Conceptual Site
Model Validation Report, dated December 2023, for the Badin Business Park. The Validation Report
addresses a comprehensive facility -wide groundwater monitoring event completed during May and June
of 2023 as well as data gaps identified in the HCSM Update and comments from NCDEQ.
Should you have any questions or comments, please contact Jason Mibroda of Alcoa at [phone] at
your convenience.
Respectfully,
Robyn L. Gross
Director, Asset Management Americas
Badin Business Park LLC
Cc:
Randy Bush, Alcoa
Jason Mibroda, Alcoa
Kim Caulk, NCDEQ
Julie Grzyb, NCDEQ
John Hennessey, NCDEQ
Richard Rogers, NCDEQ
Andrew Pitner, NCDEQ