20220324_ADI_34-01

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director
Certified Mail
Return Receipt Requested
7019 1120 0002 0064 5992
Tony Johnson
Vulcan Materials, LLC
11020 David Taylor Drive, Suite 400
Charlotte, NC 28262
RE: 421 Quarry
Mining Permit No. 34-01
Forsyth County
Yadkin Pee -Dee River Basin
Dear Mr. Johnson:
NORTH CAROLINA
Environmental Quality
March 24, 2022
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 N.C.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:
The additional information letter dated December 21, 2021, item 15, requested that additional details
including testing and reporting procedures be provided to achieve a minimum 90% standard proctor.
In your February 11, 2022, response to the December 21, 2021, additional information letter it was
stated that since this activity is not for construction purposes as a structural fill, engineered compaction
of the fill was not warranted. On sheet C302, item 1 of the Phase 3 Construction Sequence, states that
"Fill material shall be compacted to a min. 90% standard proctor." Please clarify your intent for
compaction. Please provide details on how a 90% standard proctor will be achieved over the entire fill
as stated on the mine maps.
2. The February 11, 2022, response to item 15 states that "differential settlement should not be a concern."
Please provide proof through engineering calculations that differential settlement will not occur to
cause small pools as referenced in N.C.G.S. §74-53 (4).
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.
D E Q North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
512 North Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612
NORhI CAROLINA -
oaPermemoieomronmenmiuuaiity /`� 919.707.9200

Certified Mail
Mr. Johnson
Page 2
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,
Adam Parr, PE
Assistant State Mining Engineer
cc: Ms. Tamera Eplin, PE