20240409_ADI_Reply

HEDRICK
INDUSTRIES
April 3, 2024
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Adam Parr RECE',' =�
NCDEQ—Land Quality Section fu'3 9 IdA
1612 Mail Service Center
Raleigh,NC 27699 LMp QUALITY 9E,CTION
Permit: Lake Norman Quarry 55-01
Dear Adam:
This letter is in response to the questions concerning our Lake Norman Quarry modification request and
letter dated March 4, 2024, for additional information. I did have a Teams meeting with Jerry and
Shannon from the Mooresville Regional Office to discuss their comments on March 25, 2024.
Additional Requested Comments:
1. Included is a separate map showing the outline of the property currently permitted by Lake
Norman Quarry with the adjoining property owners as of March 2024 according to the Lincoln
County GIS website.
2. The legend has been updated on the attached maps to properly reflect the colors used on the map
for illustration.
3. Dark shading for berm has been added to legend.
4. Wetlands are shown on the site map.
5. Included is the documentation that was submitted to FEMA for the CLOMAR study that will
reflect the floodplain information as requested.
6. Included is map EC-200 that reflects the proposed buffers off Forney Creek once the relocation
has been completed. These buffers were approved by DWR and Army Corp of Engineers as part
of their issuing the permits.
7. Included is a reclamation map.
Comments from Mooresville Regional Office:
1. Legend has been updated on all maps to reflect the areas identified.
2. The acreage for disturbance is 26.60 acres. This is the amount of newly affected acreage. The
34.7 acres inside the LOD has some areas that have already been previously permitted in 2018.
The total new acres to be disturbed is 26.60 acres. This is the area that will be under
Conservation Easement once the project is completed.
3. The stream contours are different from the mine map. I have asked that NCDEQ look at the
construction drawings for the stream relocation for further detail. The contours are 1' on the
construction drawings. The mine map is 5' contours. The area shaded in hatched purple is to
show the proposed stream relocation area and then to reference the construction drawings for
more in depth detail. The construction drawings were approved by the Army Corp of Engineers
as part of the Individual Permit issued.
Office:828.686.3844
Cell:828.712.9009
i conner(fhedri cki n d.m m
www.hedrickind.com

4. All erosion control that was is shown on the site map was previously permitted and installed as
of the approved NCDEQ 2015 permit modification and prior. Some of the basins have been
moved outside the LOD as shown on the"Forney Relocation Map" and will be reconstructed as
needed to ensure proper BMP's are in place prior to construction of new stream channel.
5. An adequate construction sequence has been provided in the construction plans by DRG for the
new stream construction and redirecting flow from old channel to new.
6. Buffers are shown on included map EC-200 after the completion of the new stream channel.
7. Calculations and basins that were approved in 2015 by NCDEQ will adequately handle any
material that is stored in the temporary waste area. The waste area dimensions will change
throughout the project as material will be stockpiled and then reused during the project. At the
end of the project there will not be a waste pile. The area will be returned to natural grade and
seeded according to the approved seeding plan by NCDEQ as shown on the details and listed in
the mining permit.
8. The berms on the NW side of the map were permitted in 2018 by NCDEQ.
9. Seeding instructions are included in the construction plans by DRG that were recommended and
approved by the Army Corp of Engineers. There is also a seeding plan approved by NCDEQ and
shown on the details section of the plans. If additional seeding is required outside of the LOD
then the seeding plan approved by NCDEQ in the mining application will be used.
10. The LOD line was approved by the Army Corp of Engineers.
11. The erosion control measures shown on the construction plans for Forney Creek are adequate.
Silt fencing will be provided during construction and will separate the old and new channels.
The construction phase will last approximately 6-months.
Most of the questions by the Mooresville Regional Office were due to not knowing what was previously
permitted versus what was being requested. I have included a map that shows what has been permitted
prior to this request. The only modification request is the area for the stream relocation. Basins E, F, G,
H, I, and J were constructed in 2015 as approved by NCDEQ. If during construction, it is determined
that these basins need to be moved they will be reconstructed to the design parameters as already
approved by NCDEQ. Basins 0, P, and Q have not been constructed but no disturbance activity as been
conducted in the area. Basins 0,P, and Q were approved by NCDEQ as part of the 2018 modification
request. The berm as shown above these basins has not been constructed. This area is fully vegetated.
If you have any questions,please call at 828-686-3844 or cell 828-712-9009
Sincerely,
!/Jason Conner
VP Land Management
Grove Stone and Sand
PO Box 425
Swannanoa,NC 28778
Office:828.686.3844
Cell:828.712.9009
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