20220526_ADI_Received

May 24, 2022
Mr. Adam Parr
Assistant State Mining Specialist
NCDEQ — DEMLR
512 North Salisbury Street
Raleigh, NC 27604
RECEIVED
MAY 2 6 2022
LAND QUALITY
MINING PROGRAM
MEN
■■■
0"Hanson
HEIDELBERGCEMENTGroup
Hanson Aggregates Southeast LLC
South Region
North Carolina Territory Office
3825 Barrett Drive, Suite 300
Raleigh, NC 27609
Tel [phone]
Fax [phone]
w .lehiahhanson.com
Subject: Response to DEMLR May 2, 2022 ADI
Hanson Aggregates Southeast LLC — Holly Springs Quarry
NC Mine Permit No. 92-13 Revised Mine Modification Map Submittal
Holly Springs, Wake County, North Carolina
Dear Mr. Parr:
Hanson Aggregates Southeast LLC is hereby responding to the above referenced request for
additional information and is additionally hereby removing its request to expand the existing pit
to the southwest corner of the property until the USACE issues an updated jurisdictional
determination. We will address each item as received in your letter.
Your July 8, 2021 application states that you will avoid or impact Stream Feature F and
Wetlands W13 on the newly acquired Powell and Kinney tracts, depending on whether
USACE determines these features to be exclusive. Your maps show that you intend to
impact these features. Please provide the USACE determination to impact these features
or provide maps showing plans to avoid these features.
To date, the USACE has not reversed its initial determination for Stream Feature F and
Wetlands W13; even though, the current WOTUS rule would support the determination
that these features are exclusive. Therefore, the mine maps M&ECP-1, M&ECP-2, and
RP-1 have been revised to show our plans to avoid these features. Runoff from the
overburden piles has been diverted to the corresponding sediment basin.
The affected acreage table has been adjusted, as well, to reflect the changes in disturbed
acreage. Please see the below adjusted Table, which can also be found on the M&ECP-1
and M&ECP-2 Mine Maps.

CATEGORY
Permitted to be Affected
PERMITTED
& AFFECTED
ACREAGE
2016
Modification
2022
Modification
Total
Tailings/Sediment Ponds
32.8
0.0
32.8
Stockpiles
34.3
17.5
51.8
Wastepiles
26.0
62.1
88.1
Processing Area/Haul Roads
17.2
0.8
18.0
Mine Excavation
56.8
1.7
58.5
Other Areas Permitted for
Disturbance: Asphalt Plant, etc.
11.5
0.0
11.5
Total Acres to be Affected
178.6
82.1
260.7
Other: Buffers, Wetlands, etc.
107.7
25.8
133.5
Total Mine Permitted
286.32
107.90
394.22
2. Your current permit condition 5A mentions groundwater monitoring wells. These wells are
not marked on the most recently submitted maps. Please clarify if these wells or any other
wells are still in use. Please indicate and label on the mine map any new wells that have
been installed.
Groundwater observation wells numbers 1 through 6 are no longer in use. Four of the
wells were terminated as they fell within the pit excavation. Another well was covered with
an overburden pile. Since the wells are no longer operable, Hanson has removed the wells
from the mine maps and requests that Mine Conditions 5A, 56, and 5C be removed from
the mine permit. To our knowledge there have been no issues of the lack of water from
nearby wells due to our Holly Springs quarry operations.
Hanson does realize, however, the value that groundwater studies and observation wells
can provide Hanson, as well as the Department, when troubleshooting any groundwater
issues from the surrounding area. Thus, Hanson will include a Groundwater Monitoring
Plan with the next mine modification application to expand the existing pit.
Finally, revised mine maps have been included to reflect responses included in this letter.
- 2 (two) copies of this response letter
- 2 (two) copies of each revised mine map: M&ECP-1, M&ECP-2, and RP-1
Should you have any questions or need additional information, please contact me at our Raleigh
office: [phone], Jack. Garvey0lehighhanson.com , and you may also contact our
contracted engineer, Andrew Mericle: [phone], americle0daa.com .

Sincerely,
tit X
Jac c Garvey <�
Environmental Manager
Enclosures:
cc: Daren McMorris, NC General Manager
Nathan Duryea, Plant Manager
Andrew Mericle, Draper Aden Associates
Bob Zarzecki, S&EC, PA