WS-2865_7196_G_ACCLTR_20230428

April 28, 2023

CEMEX Construction Materials, Inc.
Attn: Mr. Bo Sigurd
3820 Northdale Blvd., Suite 100 B
Tampa, FL 33624

Re: Acknowledgement of Report Receipt
CSC Concrete
3415 Sandy Ridge Road, Colfax
Guilford County, North Carolina
Incident Number: 7196
Risk Classification: High
Ranking: 160

Dear Mr. Sigurd:

This office acknowledges the receipt of a Semi-annual Groundwater Monitoring Report
dated April 24, 2023 for the referenced site. Your cooperation is appreciated. The report
has been reviewed and maintained in the Guilford County Health Department in
Greensboro.

If you have any questions regarding this letter, please contact Gene Mao at the Guilford
County Department of Health and Human Services, 400 W. Market Street, Suite 300,
North Carolina 27401 and/or [phone].

Sincerely,

James W. Brown
Regional Supervisor
Winston-Salem Regional Office
UST Section, Division of Waste Management,
NCDEQ

cc: Guilford County Department Health and Human Services