20210414_ADI_92-10

ROY COOPER
Governor
DIONNE DELLI-GATTI
Secretary
BRIAN WRENN
Director
Certified Mail
Return Receipt Requested
7016 2140 0000 4367 7017
David Lee
Wake Stone Corporation Company
P O Box 190
Knightdale, NC 27545
RE: Cary (Triangle) Quarry
Mining Permit No. 92-10
Wake County
Neuse River Basin
Dear Mr. Lee:
NORTH CAROLINA
Environmental Quality
April 14, 2021
We have reviewed the modification request your company submitted for the referenced mine site. In order for this
office to complete its review of the referenced project in accordance with G.S. §74-50 and §74-51 of the Mining
Act of 1971, please provide the additional or revised information in accordance with the following comments:
1. Please supply a list of all equipment that was modeled and its location for the "Wake Stone Triangle
Quarry Expansion Acoustical Study."
2. Please supply a copy of the March 12, 2021 "Wake Stone Triangle Quarry Expansion Acoustical Study"
that provides tracked changes from the February 11, 2021 draft version.
3. The current maps provide the location of concrete washout on the north/west (new pit) side of Crabtree
Creek, but no concrete washout is shown on the south/east (existing pit) side of the creek. Please supply
corrected drawings showing the concrete washout(s) on the south/east pit, or an explanation why a
washout is not needed.
4. Please supply proof that the security fence meets the requirements of the Neuse River buffer rules. Has
a buffer authorization been provided?
5. It is recommended that Wake Stone upsize the riser pipe diameter on Basin #4 so that it is a size or two
larger than the barrel pipe. This will prevent potential hydraulic conditions that can reduce outflows
and overall hydraulic efficiency.
6. We have received additional information regarding Reclamation Condition No. 5, subparagraph B (the
"Sunset Clause"). As a result, please provide all current and historical information, including
documents and communications, regarding this Condition that you have in your possession or to which
you have access. To the extent available, this includes information dating between the hearing
conducted by the Mining Commission on or around December 16, 1980 and issuance of the Mining
D_EQJ� north Carolina Department of Environmental Quality Division of Energy. Mineral and Land Resources
512 North Salisbury Street 1612 Mail Service Center Raleigh. North Carolina 27699-1612
v��e�� 919.707.9200

Mr. Lee
Page 2 of 2
Permit on May 13, 1981. In the event that you are aware of the existence of other documents related
to this request but to which you do not have access, please provide the names of individuals who might
have access to them or who would have additional knowledge about this topic.
Please note, this office may request additional information, not included in this letter, as the mining application
review progresses. Be advised that our review cannot be completed until all of the items listed above have been
fully addressed.
In order to complete the processing of your application, please forward two (2) copies of the requested information
to my attention at the following address:
Division of Energy, Mineral, and Land Resources
Department of Environmental Quality
1612 Mail Service Center
Raleigh, NC 27699-1612
As required by 15A NCAC 513.0113, you are hereby advised that you have 180 days from the date of your receipt
of this letter to submit all of the requested information. If you are unable to meet this deadline and wish to request
additional time, you must submit information, in writing, to the Director clearly indicating why the deadline cannot
be met and request that an extension of time be granted. If an extension of time is not granted, a decision will be
made to grant or deny the mining permit based upon the information currently in the Department's files at the end
of the 180-day period.
Though the preceding statement cites the maximum time limit for your response, we encourage you to provide the
additional information requested by this letter as soon as possible. Your prompt response will help us to complete
processing your application sooner.
Please contact me at [phone] if you have any questions.
Sincerely,
arc_
Fo(L
David Miller
State Mining Engineer
cc: Bill Denton (Raleigh Regional Engineer)