11037_Double Oaks_ Revised VMS-O&M Final

State of North Carolina | Environmental Quality | Waste Management
1646 Mail Service Center | 217 West Jones Street | Raleigh, NC 27699-1646
919 707 8200 T

June 12, 2017

Sent Via Email ([e-mail])
Fred Dodson, Jr. Chief Operating Officer Charlotte-Mecklenburg Housing Partnership, Inc.
4601 Charlotte Park Drive, Suite 350 Charlotte, NC 28217-1915
Subject: Approval for REVISED Methane Vapor Mitigation System Design and O&M Double Oaks Brownfields Project Brightwalk Development Phase 8
Charlotte, Mecklenburg County Brownfields Project Number 11037-07-060

Dear Mr. Dodson:
On May 26, 2017, the North Carolina Department of Environmental Quality (DEQ) Brownfields Program
received the REVISED Methane Vapor Mitigation System Design and Methane Vapor Mitigation System Operation and Maintenance Plan prepared by GeoScience Group for the above referenced brownfields
property. The plans are approved with the following comments/clarifications: 1. For the sub-slab soil gas sample ports, are they are for depressurization readings or will you collect samples?
2. The ports should be at least 5 feet from the exterior walls. 3. Conduct inspections of the gravel/piping for each house and inspections of the vapor barrier before the slab is poured. Those inspections should include photographs and field logs to be
submitted as appendix for final deliverable. Be advised that this approval from the Brownfields Program does not waive any applicable requirement
to obtain any necessary permits, licenses or certifications for the above listed activities nor does it waive any requirement to comply with applicable law for such activities. If you have any questions, please feel
free to contact me at 704/661-0330, or via e-mail at [e-mail].
Sincerely,
Carolyn Minnich
Carolyn F. Minnich
Brownfields Project Manager
Division of Waste Management
ec: Bruce Nicholson, DEQ
Jason Kam, DEQ Tom Hassett [e-mail]
Mary Katherine H. Stukes, [e-mail]

F-0585
500-K Clanton Road
Charlotte, NC 28217
Phone: [phone]
Fax: [phone]
www.geosciencegroup.com
P:\Work Files\ENV\2015\014 -Brightwalk\CAD\all fslab plans6.2.17.dwg, 6/13/2017 11:08:09 AM, 1:1
F-0585
500-K Clanton Road
Charlotte, NC 28217
Phone: [phone]
Fax: [phone]
www.geosciencegroup.com
P:\Work Files\ENV\2015\014 -Brightwalk\CAD\all fslab plans6.2.17.dwg, 6/13/2017 11:34:58 AM, 1:1
F-0585
500-K Clanton Road
Charlotte, NC 28217
Phone: [phone]
Fax: [phone]
www.geosciencegroup.com
P:\Work Files\ENV\2015\014 -Brightwalk\CAD\all fslab plans6.2.17.dwg, 6/13/2017 11:33:17 AM, 1:1
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P:\Work Files\ENV\2015\014 -Brightwalk\CAD\fslab Garages6.2.17.dwg, 6/13/2017 11:31:00 AM, 1:1
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P:\Work Files\ENV\2015\014 -Brightwalk\CAD\6.2.17Details.dwg, 6/13/2017 11:29:05 AM, 1:1