16021_New Belgium_Request for AVL Tank Expansion_C_2021Jun09

June 9, 2021

David Peacock
Brownfields Division
Mail Service Center 1646
Raleigh, NC 27699-1646

RE: Approval for soil disturbance at New Belgium Brewery for tank expansion

To Whom it May Concern,

New Belgium Brewery (NBB), located at 91 Craven St., Asheville, NC 28806, is currently in
the planning process for a tank expansion. This project will add eight (8) fermentation
vessels (FVs), four (4) bright beer tanks (BBTs) and two (2) sugar tanks. These tanks will be
added to the west side of the production area, adjacent to the current tanks (see attached
image). The total construction area is currently 4,750 square feet, with the area disturbed
below 24’’ being less than this amount.

As with the original tanks, multiple micropiles (piles) were driven into the ground to add
structural stability for these large tanks. These piles are drilled and a tremie pipe (casing) is
inserted and either left in place or extracted as grout and concrete is pumped in. This
process does not use a traditional auger type drill, so spoils are either limited in
generation or not produced at all. The max depth for these piles is 66’’ below grade, and a
total of 72 will need to be installed.

Appendix A contains the civil drawings of the proposed construction. The EMP is in place
to protect workers from exposure to contaminated soil and groundwater, exposure to
asbestos-containing materials, and hazardous conditions (fire or explosion). Based on the
data from the EMP, there does not appear to be any exposure concerns identified in the
construction area. The nearest soil bore sample (HH-SB-17) did not identify any metals,
TPH-DRO, VOCs or SVOCs of concern. The nearest water sample (HH-TW-6) also did not
identify any contaminants of concern. While there were not many samples taken in the
proposed construction area, this does not appear to be an area with any contaminants.

Depth to groundwater for HH-TW-6 is about 4 feet, so there is a potential to contact
groundwater. This should only happen with the pile equipment, with no construction
personnel coming anywhere near the drilling depth. Any other soil disturbance that may
encounter groundwater will follow the EMP.

All contractors who will be working on the concrete foundation will be provided a
contractor brownfields information sheet, which includes a link to the site EMP.

Construction relating to the concrete foundation is currently scheduled to begin on
September 13, 2021. Before the foundation work begins, a small amount of work will be
performed associated with drains and water lines. This work will disturb soil to 3 feet and
is scheduled to begin on September 1, 2021. This area is depicted in Appendix A in the
bottom right hand corner of the image, highlighted in yellow.

It is requested that approval to perform work without oversight be provided by August 1,
2021 if possible.

Please contact me directly with questions or concerns with the report or other matters.

Sincerely,

Nick Ampe, CHMM
Environmental Health Specialist
New Belgium Brewing Company
500 Linden St.
Fort Collins, CO 80524
Phone: [phone]
Fax: [phone]
Email: [e-mail]

APPENDIX A – CONSTRUCTION DRAWINGS