20230807_Application

3M Industrial Minerals Product Division
4191 Hwy 87 South
Moncure, NC 27559 e'A
a-4-
7/10/20233
Mr. David Miller T��C'EIVED
NC Department of Environmental Quality
Division of Energy, Minerals, and Land Resources
512 North Salisbury Street,51h Floor ENO DUALITY
Raleigh, NC 27604 MjWNG PROGRAM
Re: 3M Pittsboro Mine
Dear Mr. Miller:
3M Company(3M) is pleased to submit this mine application to the North Carolina Division of
Energy, Minerals,and Land Resources(DEMLR),a division of the Department of Environmental
Quality(DEQ).3M owns and operates the Pittsboro Mine located at 4191 NC Highway 87 S
Moncure, NC.The Pittsboro Mine consists of a quarry, a roofing shingle granule manufacturing
facility,and an excavated materials stockpile area (mine refuse disposal area).The facility is
located on approximately 2,200 acres of land in Pittsboro and Moncure, NC owned by 3M.
Within the 2,200-acre tract approximately 2,038.7 acres were previously permitted as the mine
boundary with 895.4 acres currently allowed to be disturbed by the mining operation.
This request for permit modification is for:
1. Future observation well location modification
2. Minor stormwater changes to E&SC plan
3. Clarification and concurrence to materials being disposed of at the Overburden/Waste
Fines Area
Future Well Location:
There were originally 5 observation wells on the site as part a hydrogeologic impact analysis
conducted in February 1997. 3M continues to gather elevation data for groundwater at these
wells.3M Submitted a plan to expand the mine excavation area from 137.6 acres to 276.1 acres
in 2017.This plan showed the proposed quarry excavation to eventually overtake all 5 of these
wells.Since then,one of these wells has been removed (Well#1). 3M proposed to replace the 5
original wells with 3 new wells on the north side of the final quarry limits.The new wells are
shown on the Mine Map (C-716)as OW#1, OW#2, and OW#3.
Additional evaluation of the planned quarry shows that only existing wells#1,#2, and#5 will
need to be removed. Existing wells#3 and#4 will stay.These will remain near the edge of the
final quarry. 3M does not have plans to install OW#1,OW#2,and OW#3.
Minor Stormwater Chances:
The outlet pipe from the current quarry dewatering ponds(outfall 003)will be extended to a
point near the discharge point of Rock Dam Q-9 (outfall 004).The purpose of this is to prevent
the comingling of outfall 3 water into outfall 4.Outfall 3 is process wastewater(quarry dewater)
and during heavy pumping periods this water can overcome the capacity of Rock Dam Q-9

(outfall 004).This minor change is shown on the updated "Mine Map" drawing, PBOR-888-C-
716.The site SWPPP will be updated.
Overburden/Waste Fines Disposal Area:
This area is used for mining refuse disposal. Because these materials are directly connected with
the mining,cleaning,and preparation of substances mined,all of the materials that are being
disposed of at this location fit the definition of"mining refuse"as defined by GS 74-49(14)of the
Mining Act of 1971. 3M is seeking agency concurrence as part of this mining permit modification
submittal.
See Attachment A(Mine Permit Modification Summary)document for a detailed summary of
this area.
This submittal includes the following information:
• Six copies of Attachment A
• Six copies of the mine permit application.
• Six copies of project drawings/mine maps/reclamation plan
• A check for$750.00 made payable to DEQ
As required by DEMLR, 3M has provided six hard copies(one original,five copies)and one
electronic copy. Due to volume size only two hard copies of the calculations and modeling
results are provided.
Please do not hesitate to contact me should you have any questions or comments. I can be
reached at(651)785-5904 or via email at tccrawfordOmmm.com. 3M greatly appreciates the
opportunity to continue working with the DEMLR.
Sincerely,
64
Trevor Crawford, PE
3M IMPD, Civil Engineer
Cc:
Blake Arnett
Andrew Miller
Della Hardy

NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
NOTE:It is recommended that you contact the appropriate Regional Office or the Raleigh Central Office for a PRE-
APPLICATION MEETING to discuss your Intentions and address any questions.
1. Name of Mine Pittsboro Mine RECEIVED
County Chatham River Basin Cape Fear
Latitude(decimal degrees to four
places) 35.40.0000 N
Longitude(decimal degrees to four LANU QUALITY
places) 79.10.0000 W MINING PROGRAM
2. Name of Applicant 3M Company
Applicant Contact Andrew Miller Consultant Contact Trevor Crawford
Applicant Email [e-mail] Consultant Email [e-mail]
Telephone [phone] Telephone [phone]
Cell Phone [phone] Cell Phone
Permanent Address for Receipt of
3' Official Mail** 4191 Highway 87 South, Moncure, NC 27312
4. Mine Office Address 4191 Highway 87 South, Moncure, NC 27312
5. Mine Manager Blake Arnett
Mine Manager Email [e-mail]
Telephone [phone] Cell Phone [phone]
1 certify that all details contained in this permit application are true and correct to the best of our knowledge.We
fully understand that any willful misrepresentation of facts will be cause for permit revocation.
Signature*" Date 20 2
Print Name Bake Arnett
Tifie Plant Director
'This vdll be the name that the mining pennitwill be issued to and the name that must be indicated on the reclamation bond fsecudNl that
corresponds to this site.
"The Division of Energy,Mineral,and Land Resources must be notified of any changes in the permanent address or telephone number.
'Signature of company officer required.
G.S.74-51 provides that the Department shall grant or deny an application fora permit within 60 days of receipt of a complete
application or,if a public hearing is held,within 30 days following the hearing and the filing of any supplemental information
required by the Department.All questions must be addressed,and all required maps provided before this application can
be considered complete.Attach additional sheets as needed.
Revised September 21,2021 P a g e l

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
NOTE:All the following questions must be thoroughly answered regarding your mining operation for the intended
life of the mine.All responses must be clearly conveyed on a corresponding,detailed mine map.
A.GENERAL CHARACTERISTICS OF THE MINE
1. Answer all the following that apply:
This is an application for a NEW permit.
Indicate the total acreage at the site to be covered by the permit
(This is the acreage the new permit fee will be based upon.)
Of this acreage,how much is owned and how much is leased?
Acres owned: Acres leased:
Property owner if leased:
FX-� This is an application for a MODIFICATION to a mining permit.
Mining Permit Number: 19-16 Total permitted acreage: 2,038.70
Does the modification involve acreage within the previously approved permitted boundary?
YES D NO
If yes,indicate the acreage to be covered by this modification
Does the modification involve acreage outside the previously approved permitted boundary?
YES D NO
If yes,indicate the additional acreage to be covered by this modification
NOTE:You must complete all of Section F of this application form entitled Notification of Adjoining
Landowners
Of the acreage to be added to the permit,will any portion be affected(i.e.:disturbed,ground cover
removed)by the mining operation?
YES rx NO
If yes,indicate the acreage to be affected within the acreage to be added to the permit
The modification fee is based upon the proposed new affected acreage within the previously
approved permitted boundary plus the proposed total acreage to be added outside the previously
approved permitted boundary.
This is an application for TRANSFER of a mining permit.
Mining Permit Number: Total permitted acreage:
r.r/
Revised September 21,2021 Page 12

NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
MINING FEE SCHEDULE
A nonrefundable permit application processing fee when filing for a new mining permit,permit modification,or transferred permit Is
required as follows:
APPLICATION TYPE 0—25 ACRES 26+ACRES
New Permit Applications $3,750.00 $5,000.00
Permit Modifications $750.00 $1,000.00
Permit Transfers $100.00 $100.00
Annual Operating Fee $400.00 $400.00
Acres for new permits means the total acreage at the site to be covered by the permit Acres for modification of permits means the
new affected acres within the previously approved permitted boundary plus the proposed total acreage to be added outside the
previously approved permitted boundary.
2. Name of all materials mined: Greenstone
3. Mining Method:
Hydraulic Dredge ©Front-end Loader&Truck Shovel&Truck
Dragline&Truck 0 Seif-loading Scraper FlExcavator&Truck
Other(please explain):
4. Expected maximum depth of mine(feet)'I,376
Depth is relative to what benchmark?(e.g.,natural ground level,mean seal level,road elevation,etc.)
Measured from average natural grade adjacent to the proposed top of quarry.
Expected average depth of mine(feet)-876
5. Has an area at this site been mined in the past?
YE R NO
If yes,when and by whom was this activity conducted?3M
6. Estimated life of the operation(years):53
NOTE:The Department may request clarification on how life of mine was calculated.
r.✓
Revised September 21,2021 Page 13

NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
B.MAPS
1. Clearly mark and label the location of your mining operation on six(6)copies of a 7.5-minute quadrangle and a county
highway map.These maps,in addition to six(61 copies of all mine maps and redamation maps,must be submitted
with each permit application.
7.5-minute quadrangles may be obtained from the N.C.Geological Survey:
Mailing Address Physical Address
1612 Mail Service Center 512 N.Salisbury St.,5s Floor
Raleigh,NC 27699-1612 Raleigh,NC 27604
Hdp:/bortal.ncdenr.org/web/ir/geological home [phone]
County highway maps may be obtained from the N.C.Department of Transportation:
Mailing Address Physical Address
NCDOT GIS Unit NCDOT GIS Unit
1587 Mail Service Center 3401 Carl Sandburg Court
Raleigh,NC 27699-1587 Raleigh,NC 27610
http://www.ncdot.rg/it/gis [phone]
2. A tablelchart must be provided on the mine map that clearly lists the approximate acreage of tailings/sediment ponds,
stockpiles,waste piles,processing areas/haul roads,mine excavations and any other major aspect of the mining
operation that is proposed to be affected/disturbed during the life of the mining permit.A table/chart similar to the
following will be acceptable:
AFFECTED ACREAGE TABLE:
For new permits,complete only the total affected acreage column.
For modifications,complete all columns.
CATEGORY CURRENT AFFECTED PROPOSED CHANGE TO TOTAL AFFECTED
ACREAGE AFFECTED ACREAGE ACREAGE
Tailings/Sediment Ponds 50.40 0.00 50.40
Stockpiles 11.30 0.00 11.30
Waste piles 371.40 0.00 371.40
Processing Areas/Haul Roads 147.80 0.00 147.80
Mine Excavations 276.10 0.00 276.10
Other(Please explain) 38.40 0.00 38.40
Total Affected Acreage 895.40 0.00 895.40
Total Permitted Acreage 2,038.70 0.00 2,038.70
Revised September 21,2021 P a g c 14

NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
3. Mine maps must be accurate and appropriately scaled drawings,aerial photographs,or enlarged topographic maps of
the entire mine site.All aspects of the mine site must be clearly labeled on the maps along with their
corresponding(approximate)acreage.Thus,all mine and reclamation maps must denote those activities that
are Intended to be conducted during the life of the mining permit.All maps must be of a scale sufficient to clearly
illustrate the following,at a minimum:
a) Property lines of the tract or tracts of land on which the proposed mining activity is to be located including
easements and rights-of-way.
b) Existing or proposed permit boundaries with geographic controls(e.g.metes and bounds,coordinates)labeled
c) Initial and ultimate limits of clearing and grading
d) Outline and width of all buffer zones(both undisturbed and unexcavated)
e) Outline and acreage of all pits/excavations
f) Outline and acreage of all stockpile areas
g) Outline and acreage of all temporary and/or permanent overburden disposal areas
h) Location and acreage of all processing plants(may be described as to location and distance from mine if
sufficiently far removed)
i) Locations and names of all streams,rivers,and lakes
j) Outline and acreage of all settling and/or processing wastewater ponds
k) Outline and acreage of all planned and existing access roads and on-site haul roads
1) Location of planned and existing on-site buildings
m) Location and dimensions of all proposed sediment and erosion control measures
n) Location of 100-year floodplain limits and wetland boundaries
o) Names of owners of record,both public and private,of all tracts of land that are adjoining the mining permit
boundary;if an adjoining tract is owned or leased by the applicant or is owned by the lessor of the mine tract,
names of owners of record of tracts adjoining these tracts that are within 1,000 feet of the mining permit boundary
must be provided on the mine map.
p) Names of owners of record,both public and private,of all tracts of land that are adjoining the mining permit
boundary which lie directly across and are contiguous to any highway,creek,stream,river,or other watercourse,
railroad track,or utility or other public right-of-way.If an adjoining tract is owned or leased by the applicant or is
owned by the lessor of the mine tract,names of owners of record of tracts adjoining these tracts,that are within
1,000 feet of the mining permit boundary,must be provided on the mine map(s).NOTE:"Highway"means a road
that has four lanes of travel or less and is not designated as an Interstate Highway.
q) Map legend
1) Applicant name 5) Scale
2) Mine name 6) Symbols used and corresponding names
3) North arrow 7) Date prepared and revised
4) County 8) Name and title of person preparing map
Map scales should meet the following guidelines:
PERMITTED ACREAGE MAP SCALE
0—49 acres 1"=50'
50—199 acres 1"=100'
200+acres 1"=200'
NOTE:Smaller scaled maps may be acceptable if they clearly illustrate the above items.
NOTE:In addition to the above,the maps must also include any site-specific information that is provided In
the answers to the following questions(italicized questions/statements)In this application form.This
application will not be considered complete without all relevant items being adequately addressed on the mine
maps.
Revised September 21,2021 Page 15

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
C.PROTECTION OF NATURAL RESOURCES
1. Describe in detail the sequence of events for the development and operation of the mine and reference the sequence
to the mine map(s).Attach additional sheets as needed.
The following list indicates the order of events for installation of E&SC modifications planned as part of this
submittal.
•Install temporary E&SC,silt fence,misc check dams,etc.
•Clearing/Grubbing
•Earthwork,excavation/backfili
•Install outlet structure(s)
•Final Sloping
•Final vegetation establishment
•Construction per plans
2. Describe specific erosion control measures to be installed prior to land disturbing activities and during mining to
prevent offsite sedimentation(include specific plans for sediment and erosion control for mine excavation(s),waste
piles,access/mine roads,and process areas),and give a detailed sequence of installation and schedule for
maintenance of the measures.Locate and label all sediment and erosion control measures on the mine map(s)and
provide typical cross-secfionsJconstrucfion details of each measure.Engineering designs and calculations are required
to justify the adequacy of any proposed measures.
The following list Indicates the order of events for installation of E&SC modifications planned as part of this submittal.
•Install temporary E&SC,silt fence,misc check dams,etc.
•Clearing/Grubbing
•Earthwork,excavation/backfill
•Install outlet structure(s)
•Final Sloping
•Final vegetation establishment
•Construction per plans
3. A)Will the operation involve wash in the material mined,recycling process water,or other wastewater handling?
AYES NO
If yes,briefly describe all such processes including any chemicals to be used.
See additional sheet for information on#3.
B)Will the operation involve discharging fresh or wastewater from the mine or plant as a point discharge to the waters
of the State?
MYES �NO
If yes,briefly describe the nature of the discharge and locate all proposed discharge points(along with their method of
stabilization)on the mine map(s).
See additional sheet for information on#3.
Revised September 21,2021 P a g e 16

Mine Permit Application—Section C, Part 3
A) Will the operation involve washing the material mined,recycling process water,or other
wastewater handling?YES
If yes,briefly describe all such processes including any chemicals to be used.
• Reclaim water generation from 3M Pittsboro Wastewater Treatment Plant(WWTP)authorized
under NC Division of water resources, Non-Discharge Permit WQ0020808,used for wetting
material fines via pugmill operations.Sodium hydroxide,and hypochlorite are chemicals used
during the treatment of wastewater.3M Pittsboro WWTP does not discharge waste to surface
waters.
• Mine dewatering applied to land as a dust suppressant for roads,and stockpiles.
• Process water generated from processing&preventative maintenance of primary crushers,
screeners,and conveyors along northwest side of the property are captured via closed loop
recycling ponds.
• Wastewater generated from equipment washout and rinsing is part of processing and
preventative maintenance discharged to surface waters are covered under General Permit
NCG020000
• Allowable non-stormwater discharges under general permit NCG020000 to include:
uncontaminated groundwater,foundation drains,air-conditioner condensate without added
chemicals,springs,discharges of uncontaminated potable water,waterline and fire hydrant
flushings,water from footing drains,irrigation waters,flows from riparian habitats and
wetlands. Discharges resulting from firefighting or fire-fighting training,or emergency shower or
eye wash because of use in the event of an emergency.
B) Will the operation involve discharging fresh or wastewater from the mine or plant as a point
discharge to the waters of the State?YES
If yes,briefly describe the nature of the discharge and locate all proposed discharge points
(along with their method of stabilization)on the mine map(s).
• Mine dewatering discharge from OF-003 to surface water are authorized under General Permit
NCG020000
• Wastewater generated from equipment washout and rinsing is part of processing and
preventative maintenance discharged to surface waters from outfall 003 are authorized under
General Permit NCG020000

NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
C)Will any part of the proposed mine excavation(s)extend below the water table?
FK77 -1 YES NO
If yes,do you intend to dewater the excavation(s)?
A YES 1:1 NO
Estimated withdrawal rate in gallons per day: 32$ 000.00
If yes,what impact,if any,will mine dewatering have on neighboring wells?Locate all existing wells on the mine
maps)that lie within 500 feet of the proposed excavation area.Provide data to support any conclusions or statement
made,including any monitoring well data,well construction data,and current water withdrawal rates.Indicate whether
the proposed mine locale is served by a public water system or private wells.
3M identified only one well located within 500 feet of the quarry excavation(PIN 9659-19-4946). Exploratory
borings in the vicinity of the quarry indicate that the subsurface geology consists of metamorphosed volcanic
rock with low porosity and low permeability. The soils and weathered rock overlying this layer are also of low
porosity and low permeability. Accordingly,3M does not believe that quarry excavation and operation will
impact this well as supported by a hydrogeologic impact analysis conducted in February 1997. However,there
are currently five(5)observation wells installed around the quarry to monitor effects to the water table. Three
(3)of these wells are located in the proposed quarry expansion area. 2 wells will remain and will continue to
observe the effects to the water table. A public water system is also available on the western and southern side
of the site.
D)If you answered yes to any of the above questions,provide evidence that you have applied for or obtained the
appropriate water quality permit(s)(i.e.,non-discharge,NPDES,Stormwater,etc.)from the Stormwater Program.In
addition,the applicant is required to register water use with the Division of Water Resources,Ground Water
Management Branch,if the operation withdraws more than 10,000 gallons per day and needs a capacity use permit
from the Division of Water Resources,Ground Water Management Branch,if the operation lies in a capacity use area
and withdraws more than 100,000 gallons per day.
Stormwater discharges for the Pittsboro Mine are currently covered certificate of
coverage NCG020330.
3M is registered with the Division of Water Resources for its water withdrawal
(facility ID 0831-0001).
4. A)Will the operation involve crushing or any other air contaminant emissions?
YES FINO
If yes,indicate evidence that you have applied for or obtained an air quality permit issued by the Division of Air Quality
or local governing body.
Stormwater discharges for the Pittsboro Mine are currently covered certificate of coverage
NCG020330.
3M is registered with the Division of Water Resources for its water withdrawal(facility ID
0831-0001).
B)How will dust from stockpiles,haul roads,etc.,be controlled?
Haul roads, working stockpiles, and crushing residues will be sprayed with water
from the quarry as necessary. Upon reaching their final design limits inactive
stockpiles will be vegetated to control wind and water erosion.
Revised September 21,2021 Page 17

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
�.d 5. A)A buffer will be required between any mining activity and any mining permit boundary or right-of-way.It may be an
unexcavated buffer(no excavation,but roadways,berms,and erosion&sedimentation control measures may be
installed within it),an undisturbed buffer(no disturbance within the buffer whatsoever),or a combination of the two,
depending upon the site conditions.Note that all buffers must be located within the mining permit boundaries.
How wide a buffer will be maintained between any mining activity and any mining permit boundary or right-of-way at
this site?A minimum buffer of 25 feet is recommended,although a wider buffer may be needed depending on site
conditions.Show all buffer locations and widths on the mine map(s).
Consistent with Chatham County zoning regulations, a 500 foot minimum buffer
inside the permit boundary from Highway 15-501 right-of-way is provided. A
minimum undisturbed 25 foot buffer will be provided in areas adjacent 3M tracts.
See the buffers shown on the mine map.
6)A minimum 50 foot wide undisturbed buffer will be required between any land disturbing activities within the mining
permit boundaries and any natural watercourses and wetlands unless smaller undisturbed buffers can be justified.
Depending on site conditions,a buffer wider than 50 feet may be needed.
How wide an undisturbed buffer will be maintained between any land disturbing activities within the mining permit
boundaries and any natural watercourses and wetlands at this site?Show a#bufferlocations and widths on the mine
map(s).
As displayed in the attached drawings, 50-foot buffers for stream and wetland
features will be observed.
6. A)Describe methods to prevent landslide or slope instability adjacent to adjoining permit boundaries during mining.
Minimum 2 horizontal to 1 vertical slopes or flatter for clayey material and minimum 3 horizontal to 1 vertical slopes or
flatter for sandy material are generally required unless technical justification can be provided to allow steeper slopes.
Existing topography was considered in the design and layout of the facility to
minimize landslides and slope instabilities. Final grades will be left with stable
slopes and walls. Earthen cut and fill slopes have 2:1 proposed slopes to reduce
the possibility of landslide or slope instability. A soil/clay cap will be installed on
the side slopes of the overburden fines pile and then vegetated to provide
stabilization.
8)Provide a cross section on the mine map(s)for all fill slopes(berms,waste piles,overburden disposal areas,etc.),
clearly indicating the intended side slope gradient,installation of any benches and/or slope drains(with supporting
design information)if needed,and the method of final stabilization.
Revised September 21,2021 Page 18

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
C)In excavation(s)of unconsolidated(non-rock)materials,specify the angle of all cut slopes including specifications
for benching and sloping.Cross-sections for al!cut slopes must be provided on the mine map(s).
Slope faces will be graded to a 2:1 horizontal to vertical configuration, minimum
bench widths will be 30 feet. See the applicable cross-sections on the drawing
detail sheets.
D)In hardrock excavations,specify proposed bench widths and heights in feet.Provide cross-sections of the mine
excavation clearly noting the angles of the cut slopes,widths of a#safety benches and mine benches,and the
expected maximum depth of the excavation.
Maximum bench heights for all final lifts will be 100 feet. Absolute minimum
bench widths will be 10 feet as shown on the cross section drawing sheet,
however 20' minimum will be targeted during mine development to create a safe
working environment and comply with MSHA recommendations.
7. Describe other methods to be taken during mining to prevent physical hazard to any neighboring dwelling,house,
public road,or public,commercial or industrial building from any mine excavation.Locate all such structures on the
mine map if they are within 300 feet of any proposed excavation.
Existing buffers will be maintained to limit accessibility and visibility from
adjacent properties and roadways. In areas where the buffers are the vegetation
is not sufficient, and additional tree plantings will be provided. There are no
neighboring structures within 300 feet of the proposed excavation. A visual
screening berms will be provided along Charlie Brooks Road.
8. Describe what kind of barricade will be used to prevent inadvertent public access along any high wall area and when it
will be implemented.Vegetated earthen berms,appropriate fencing and adequate boulder barriers may be acceptable
high wall barricades.A construction detaftross-section and location of each type of barricade to be used must be
indicated on the mine map(s).
Large boulders,earthen berms,or temporary fencing will be used to barricade the quarry high wall. As the
quarry expands these items will be moved to maintain a continuous barrier along all high walls.
The property is presently posted and paint-marked for"No Trespassing"as part of the existing forestry program.
Locked roadway gates are presently installed at all property access points as part of the existing forestry
program.
9. Are nroducing minerals or soils present?
YES NO
If yes,how will acid water pollution from the excavation,stockpiles,and waste areas be controlled?
Revised September 21,2021 Page 19

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
10. A)Describe specific plans(including a schedule of implementation)for screening the operation from public view such
as maintaining or planting trees,bushes or other vegetation,building berms or other measures.Show the location of all
visual screening on the mine maps)and provide cross-sections through all proposed berms or proposed spacing,
sizes and species for tree plantings.
The property is currently administered under a forestry management program. Except for the area proposed for disturbance to
accommodate the quarry and other facilities,the existing managed forestry program would be continued on the bermed and
uncleared areas.
The perimeter of the permit area is currently forested and to the extent possible a 7 00-foot"unexcavated"buffer of trees will remain.
A 20 foot high screening berm with tree plantings is proposed along Charlie Brooks Road to provide screening on the northern side
of the site.
B)Could the operation have a significantly adverse effect on the purposes of a publicly owned park,forest,or
recreation area?If so,how will such effects(i.e.,noise,visibility,etc.)be mitigated?
There are no such areas located in the immediate area adjacent to the quarry.
11. will EYES
sives be used? NO
If yes,specify the types of explosive(s)and describe what precaution(s)will be used to prevent physical hazard to
persons or neighboring property from flying rocks or excessive air blasts or ground vibrations.Depending on the mine's
location to nearby structures,more detailed technical information may be required on the blasting program(such as a
•� third-party blasting study).Locate the nearest offsite occupied structure(s)to the proposed excavations)on the mine
map and indicate its approximate distance to the proposed excavation.
Please refer to previously submitted information.
12. will fuel tanks,solvents,or other chemical reagents be stored on-site?
©YES F1NO
If yes,describe these materials,how they will be stoned and method of containment in case of spill.Indicate the
location(s)of all storage facilities on the mine map(s).
Aboveground storage tanks for gasoline, diesel, oil, lubricants, solvents or other
chemical regents are used. All storage tanks have secondary containment with
either double-walled secondary containment or concrete-curb secondary
containment. These are located within the facility area of the aggregate operation
and within the area associated with the manufacturing facility. A Spill Prevention
Control and Countermeasure (SPCC) plan has been developed for the mine.
Revised September 21,2021 P a g e 110

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
D.RECLAMATION PLAN
1. Describe your intended plan for the final reclamation and subsequent use of all affected lands and indicate the
sequence and general methods to be used in reclaiming this land.This must include the method of reclamation of
settling ponds and/or sediment control basins and the method of restoration or establishment of any permanent
drainage channels to a condition minimizing erosion,siltation and other pollution. This information must be illustrated
on a reclamation map and must correspond directly with the information provided on the mine map(s).In addition,
design information,including typical cross sections,of any permanent channels to be constructed as part of the
reclamation plan and the location(s)of all permanent channels must be indicated on the reclamation map.
Equipment will be dismantled and removed from the quarry operations area. The sediment control pond(s)will either be
drained and graded to surrounding grade level or turned into a wetland area unless other permit obligations persist
(Chatham County stormwater ordinance will require that most new basins remain permanently). The stockpiles will be
constructed to have side slopes no steeper than 2H:1V;any berms installed as part of the mining operation will be
retained to provide screening;and the quarry pit will be allowed to revert to natural groundwater levels,posted,and
barricaded. Sedimentation pond(s)will be turned into wetlands.
The graded surface will be adequately prepared for use as a planting medium for herbaceous groundcovers and
coniferous overstory species. Fertilizing and soil amending will be done prior to seeding and planting as discussed in
seeding specifications. Ground covers will be planted during the first growing season after site final grading to establish
soil protection.
2. Is an excavated or impounded bodDNO
water to be left as part of the reclamation?
FX]YES
if yes,illustrate the location of the body(s)of water on the reclamation map and provide a scaled cross-sections)
through the proposed body(s)of water.The minimum water depth must be at least 4 feet,measured from the normal
low water table elevation,unless information is provided to indicate that a shallower water body will be productive and
beneficial at this site.
ll..✓
Will the body(s)of water be stocked with fish?
YES aNO
If yes,specify species.
3. Describe provisions for safety to persons and to adjoining property in all completed excavations in rock including what
kind of permanent barricade will be left.Acceptable permanent barricades are appropriate fencing,large boulders
placed end-to-end,etc.Construction details and locations of all permanent barricades must be shown on the
reclamation map.
The excavations to remain on site after reclamation are the quarry, the
sedimentation pond(s), and potentially several wetland mitigation areas. The
quarry will be barricaded and posted as set forth in Chatham County ordinances
and the State of North Carolina Department of Environment Quality guidelines.
Any berms and vegetation placed during the mining activities shall remain to
screen the site from pedestrians. Wetland mitigation areas and remaining ponds
will have sides sloped to no more than 6:1 or will have fencing and/or sign
posting to prevent inadvertent entry.
Revised September 21,2021 P a g e 11

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
4. Indicate the method(s)of reclamation of overburden,refuse,spoil banks or other such on-site mine waste areas,
including specifications for benching and sloping.Final cross-sections and locations forsuch areas must be provided
on the reclamation map.
Overburden stockpile and mineral fines stockpile slopes will be vegetated as per
the reclamation plan and planted in the ongoing forestry management program.
Overburden/fines stockpile material composition is clarified under this permit
modification (2023), see attachment A for details.
5. A)Describe reclamation of processing facilities,stockpile areas,and on-site roadways.
Processing facilities and buildings with no future on-site usage will be dismantled and
removed from the site, with the associated ground areas graded and seeded as per the
reclamation plan. However, the manufacturing facilities and the main entrance road will
likely have a future use and will be retained after mining operations cease. Stockpile
areas,which remain after completion of mining will be vegetated as per the reclamation
plan. The main entrance road to the plant areas, in addition to select on-site roads, will
be retained for usage in the forestry management program (see below).
B)Will any on-site roadways be left as part of the reclamation?
YES �NO
!f yes,identify such roadways on the reclamation map and provide details on permanent road and ditch line
stabilization.
The main entrance road and the on-site access and haul roads will be retained
to provide access to the site for forestry management and fire protection.
6. Describe the method of control of contaminants and disposal of scrap metal,junk machinery,cables,or other such
waste products of mining.(Note definition of refuse in The Mining Act of 1971.)
No off-site generated waste shall be disposed of on the mine site without prior written approval from the NC
Department of Environmental Quality,Division of Energy,Mineral,and Land Resources and either the Division
of Waste Management(DWM)or local governing body.If a disposal permit has been issued by DWM for the
site,a copy of said permit must be attached to this application.All temporary and permanent refuse disposal
areas must be clearly delineated on the mine maps)and reclamation map,along with a list of items to be disposed in
said areas.
Scrap metal, machinery, cables, and similar waste products will be removed by
licensed local waste operators for recycling or disposal in approved off-site
locations. Scrap tires will be removed for off-site disposal/recycling by licensed
facilities.
See attachment A for more detail of mine refuse items which will be disposed of
on-site.
Revised September 21,2021 Page 112

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
7. Describe your plan for revegetation or other surface treatment of the affected areas.This plan must include
recommendations for year-round seeding,including the time of seeding and the amount and type of seed,fertilizer,
lime and mulch per acre.The recommendations must include general seeding instructions for both permanent and
temporary revegetation.Revegetation utilizing only tree plantings is not acceptable.Recommendations can be sought
from:
a. Authorized representatives of the local Soil and Water Conservation District;
b. Authorized representatives of the NC Forest Service,Department of Agriculture and Consumer Services;
c. Authorized county representatives of the North Carolina Cooperative Extension Service,specialists and
research faculty with the Colleges of Agriculture and Life Sciences and Forest Resources at North Carolina
State University;
d. North Carolina licensed landscape architects;
e. Private consulting foresters referred by the NC Forest Service,Department of Agriculture and Consumer
Services;
f. N.C.Erosion and Sedimentation Control Planning and Design Manual;
g. N.C.Surface Mining Manual:A Guide for Permitting,Operation and Reclamation;
h. Others as may be approved by the Department.
Lime Rate of Application(tonstacre):
Fertilizer Analysis and Rate of Application(lbs/acre):
Seed type(s)and rate(s)of application included year-round seeding schedule(lbs/acre):
NOTE:Include legumes
SEED TYPES SEEDING DATES SEEDING RATES
Mulch Type,Rate of Application(lbs/acre),and Method of Anchoring:
Other Vegetative Cover(s)Type(s)and Rate(s)of Application Including Seeding Schedule(lbs/acre,trees/
acre,spacing of treesishrubs,etc.):
Revegetation and/or reforestation plan approved by:
Signature Date
Print Name
Title
Agency
Revised September 21,2021 P a g e 113

NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
�..r E.DETERMINATION OF AFFECTED ACREAGE AND BOND
The following bond calculation worksheet is to be used to establish an appropriate bond(based upon a range of$500 to$5,000
per affected acne)for each permitted mine site based upon the acreage approved by the Department to be affected during the
life of the mining permit.Please insert the approximate acreage,for each aspect of the mining operation,that you intend to affect
during the life of this mining permit tin addition,please insert the appropriate reclamation cost/acre for each category from the
Schedule of Reclamation Costs provided with this application fort)OR you can defer to the Department to calculate Lour bond
for Lou based upon your maps and standard reclamation costs:
CATEGORY AFFECTED RECLAMATION RECLAMATION
ACREAGE COSTIACRE COST
Tailings/Sediment Ponds Ac. X $ /Ac. = $ 0.00
Stockpiles Ac. X $ IAc. = $ 0.00
Waste Piles Ac. X $ lAc. = $ 0.00
Processing Area/Haul Roads Ac. X $ ft. = $ 0.00
Mine Excavation Ac. X $ IAc. = $ 0.00
Other Ac. X $ IAc. = $ 0.00
TOTAL AFFECTED AC.: 0.00 Ac.
TOTAL PERMITTED AC.: Ac.
Temporary&Permanent Sedimentation&Erosion Control Measures:
Divide the TOTAL AFFECTED AC.above into the following two categories:a)affected acres that drain into proposed/existing
excavation and/or b)affected acres that will be graded for positive drainage where measures will be needed to prevent offsite
sedimentation and sedimentation to onsite watercourses and wetlands.
a) Internal Drainage Ac.
b) Positive Drainage Ac. X $1,500.00 = $ 0.00
SUBTOTAL COST:$ 0.00
Inflation Factor:
SUBTOTAL COST LIFE OF MINING OPERATION OR LIFE INFLATION COST
OF LEASE(YEARS)
0.02 X $ 0.00 X = $ 0.00
Total Reclamation Bond Cost
TOTAL RECLAMATION BOND COST= SUBTOTAL+INFLATION = $0.00
Round down to the nearest$100.00
NOTE:The reclamation bond cannot exceed$1 million per GS 74.54
Revised September 21,2021 P a g e 114

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/

NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
\quo,' SCHEDULE OF RECLAMATION COSTS
Based upon range of$500-$5,000 per affected acre
COMMODITY CODES:
SG Sand and/or Gravel DS Dimension Stone PF Pyrophyllite CL Clay/Shale
GS Gemstone FS Feldspar OL Olivine PE Peat
Borrow Borrowifill dirt MI Mica KY Kyanite/Sillimanite/Andalusite AU Gold
CS Crushed Stone LI Lithium PH Phosphate TI Titanium
OT Other
TYPE TIS PONDS STOCKPILES WASTE PILES P.AREA/H.R. MINE EXCAVATION
SG,GS,Borrow $500/ac.(L) $1800/ac. $2000/ac. $1800/ac. $500/ac.(L)
1500(FI) 2000(PD)
CS,DS,FS,MI,LI, 500(L) 500(L)
PF,OL,KY 1800 2400 2000
1500(FI) 2500(PD)
PH 1000(L) 2500 5000 5000 2000(L)
2500(FI) 5000(PD)
1440(L) 2000(L)
CL 2500 5000 5000
2500(FI) 3700(PD)
PE,AU,TI,OT 1000(L) 2500 3000 3500 2000(L)
2500(FI) 5000(PD)
(L)=Reclamation to a lake and revegetating side slopes
(FI)=Reclamation by filling in and revegetating
(PD)=Reclamation by grading for positive drainage&revegetating
AS PER NCAC 15A 513.00031 IF YOU DISAGREE WITH THE BOND AMOUNT DETERMINED BY THE BOND CALCULATION
WORKSHEET,YOU MAY SUBMIT AN ESTIMATE OF RECLAMATION COSTS FROM A THIRD-PARTY CONTRACTOR.
SAID ESTIMATE MUST BE PROVIDED WITHIN 30 DAYS TO THE FOLLOWING ADDRESS: Mining Program,1612 Mail
Service Center,Raleigh,North Carolina 27699.1612
ALL ESTIMATES MUST INCLUDE THE FOLLOWING,AS A MINIMUM:
•FINAL GRADING COSTS PER ACRE
•LIME AND FERTILIZER COSTS PER ACRE
•YEAR-ROUND SEEDING MIXTURE COSTS PER ACRE(FROM APPROVED REVEGETATION PLAN IN
APPLICATIONIPERMIT DOCUMENT)
•MULCH AND ANCHORING COSTS PER ACRE
•ANY OTHER RECLAMATION COSTS NECESSARY TO COMPLY WITH THE APPROVED RECLAMATION PLAN
FOR THE SITE IN QUESTION
YOU WILL BE NOTIFIED AS SOON AS POSSIBLE OF THE DIRECTOR'S FINAL BOND DETERMINATION.
Revised September 21,2021 P a g e 15

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
r..� F.NOTIFICATION OF ADJOINING LANDOWNERS
The"Notice"form,or a facsimile thereof,attached to this application must be sent certified or registered mail,return receipt
requested,to:
(1)the chief administrative officer of each county and municipality in which any part of the permitted area is located as
indicated on the mine map(s);
(2)all owners of record,both public and private,of all tracts of land that are adjoining the mining permit boundary;if an
adjoining tract is owned or leased by the applicant or is owned by the lessor of the mine tract,all owners of record of
tracts adjoining these tracts must be notified(that are within 1,000 feet of the mining permit boundary)as indicated on
the mine map(s);and
(3)all owners of record,both public and private,of all tracts of land that are adjoining the mining permit boundary
which lie directly across and are contiguous to any highway,creek,stream,river,or other watercourse,railroad track,
or utility or other public right-of-way.If an adjoining tract is owned or leased by the applicant or is owned by the lessor
of the mine tract,all owners of record of tracts adjoining these tracts must be notified(that are within 1,000 feet of the
mining permit boundary)as indicated on the mine map(s)."Highway"means a road that has four lanes of travel or less
and is not designated as an Interstate Highway.
The only exception to the above method of giving notice is if another means of notice is approved in advance by the Director,
Division of Energy,Mineral,and Land Resources.
A copy of a tax map(or other alternative acceptable to the Department)must be mailed with the completed"Notice"form(the
proposed overall permit boundaries and the names and locations of all owners of record of lands adjoining said
boundaries must be clearly denoted on the tax map).
The"Affidavit of Notification"attached to this application must be completed,notarized and submitted to the Department,with the
remainder of the completed application form before the application will be considered complete,
NOTES:
THIS SECTION MUST BE COMPLETED FOR ALL APPLICATIONS FOR NEW MINING PERMITS AND ALL MODIFICATIONS
OF A MINING PERMIT TO ADD LAND TO THE PERMITTED AREA,AS REQUIRED BY NCGS 74-50(b1).
SEE THE NEXT TWO PAGES FOR THE"NOTICE"FORM AND THE"AFFIDAVIT OF NOTIFICATION"
Revised September 21,2021 P a g e 116

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
NOTICE
Pursuant to provisions G.S.74-50(b1)of The Mining Act of 1971,Notice is hereby given that
has applied on to the Division of Energy,
(Applicant Name) (Date)
Mineral,and Land Resources,North Carolina Department of Environmental Quality,1612 Mail Service Center,Raleigh,North
Carolina 27699-1612,for(check one):
Fla new surface mining permit,
®a modification of an existing surface mining permit to add land to the permitted area;or
F�a modification of an existing surface mining permit to add land to the permitted area with no disturbance in
the area proposed. Please note that future modification(s)may be submitted by the applicant to allow
disturbance within this area without re-notification of adjoining landowners.
The applicant proposes to mine on acres located
(Mineral,Ore) (Number) (Number)
miles of off/near road
(Direction) (Nearest town) (Number,Name)
in County.
*SEE ATTACHED MAP FOR PROPOSED PERMIT BOUNDARIES AND CORRESPONDING ADJOINING LANDOWNER
NAMES AND LOCATIONS*
In accordance with G.S.74-50(b1),the mine operator is required to make a reasonable effort,satisfactory to the Department,to notify all
owners of record,both public and private,of all tracts of land that are adjoining the mining permit boundary;if an adjoining tract is owned or
leased by the applicant or is owned by the lessor of the mine tract,all owners of record of tracts adjoining these tracts must be notified(that are
within 1,000 feet of the mining permit boundary).In addition,the mine operator must also notify the chief administrative officer of the county or
municipality in which any part of the permitted area is located. Any person may file written comment(s)to the Department at the above address
within thirty(30)days of the issuance of this Notice or the filing of the application for a permit,whichever is later. Should the Department
determine that a significant public interest exists relative to G.S.74-51,a public hearing will be held within 60 days of the end of the 30-day
comment period specified above.
A copy of the permit application materials is on file and available for public review during normal business hours at the above listed address as
well as at the appropriate regional office.For information regarding the specifics of the proposed mining activity,please contact the
applicant at the following telephone number:
For information on the mining permit application review process,please contact the Mining Program staff at(919)707-9220. Please note that
the Department will consider any relevant written comments/documentation within the provisions of the Mining Act of 1971 throughout the
application review process until a final decision is made on the application.
Addressee/Owner of Record's Name and Address Name of Applicant.Include Contact Person&Company Name,if Applicable
Date of Issuance of this Notice/Mailed to AddresseelOwner of Record Address of Applicant
Revised September 21,2021 P a g e 117

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
AFFIDAVIT OF NOTIFICATION
an applicant,or an agent,or employee of an applicant,for a
new Mining Permit,or a modification of an existing Mining Permit to add land to the permitted area,from the N.C.Department of
Environmental Quality,being first duly swom,do hereby attest that the following are all known owners of record,both public and
private,of all tracts of land that are adjoining the mining permit boundary(including,where an adjoining tract is owned or leased
by the applicant or is owned by the lessor of the mine tract,all owners of record of tracts adjoining these tracts,that are within
1,000 feet of the mining permit boundary)and that notice of the pending application has been caused to be mailed,by certified or
registered mail,return receipt requested,to said owners of record at their addresses shown below,such notice being given on a
form provided by the Department:
Adjoining Landowner Name Address
Attach additional list if necessary.
I do also attest that the following individual is the chief administrative officer of the county or municipality in which any part of the
permitted area is located and that notice of the pending application has been caused to be mailed,by certified or registered mail,
return receipt requested,to said office at the following address:
Chief Administrative Officer Name Address
(i.e.:City Manager,County Manager,Mayor,etc.)
The above attestation was made by me while under oath to provide proof satisfactory to the Department that a reasonable effort
has been made to notify all known owners of record,both public and private,of all tracts of land that are adjoining the mining
permit boundary(including,where an adjoining tract is owned or leased by the applicant or is owned by the lessor of the mine
tract,all owners of record of tracts adjoining these tracts,that are within 1,000 feet of the mining permit boundary)and the chief
administrative officer of the county or municipality in which any part of the permitted area is located in compliance with N.C.G.S.
74-50(b1)and 15A NCAC 5B.0004(d).I understand that it is the responsibility of the applicant to retain the receipts of mailing
showing that the above notices were caused to be mailed and to provide them to the Department upon request.
Signature of Applicant or Agent Date
If person executing Affidavit is an agent or employee of an applicant,provide the following information:
Name of Applicant
Title of person executing Affidavit
a Notary Public of the County of ,
State of North Carolina,do hereby certify that appeared before me this
day and under oath acknowledged that the above Affidavit was made by him/her.
Witness my hand and notarial seal,this day of 20
Notary: My commission expires:
Revised September 21,2021 P a g e 118

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NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
G.LAND ENTRY AGREEMENT
We hereby grant to the Department or its appointed representatives the right of entry and travel upon our lands or operation
during regular business hours for the purpose of making necessary field inspections or investigations as may be reasonably
required in the administration of the Mining Act of 1971 pursuant to G.S.74-56.
We further grant to the Department or its appointed representatives the right to make whatever entries on the land as may be
reasonably necessary and to take whatever actions as may be reasonably necessary in order to carry out reclamation which the
operator has failed to complete in the event a bond forfeiture is ordered pursuant to G.S.74-59.
LANDOWNER: APPLICANT:
Signature Signature*
Print Name Print Name
Title(if applicable) Title
Company(if applicable) Company
Address Mine Name
Telephone
Telephone Date Signed
Date Signed
*Signature must be the same as the individual who signed Page 1 of this application.
One original and five(5)copies of the completed application,sbc(6)copies of all location maps,mine maps and
reclamation maps,and the appropriate processing fee in the form a check or money order payable to the North Carolina
Department of Environmental Quality must be sent to the Raleigh Central Office at the address listed on the front cover
of this application form.
Inquiries regarding the status of the review of this application should be directed to the Mining Program staff at(919)707-9220.
Revised September 21,2021 P a g e 119

NORTH CAROLINA MINING State of North Carolina 1612 Mail Service Center
PERMIT APPLICATION Department of Environmental Quality Raleigh,NC 27699-1612
Division of Energy,Mineral,and Land Resources [phone]
Additional Information
Please use the space below to provide additional information to answer the questions in the application. Please clearly
indicate which question is being continued on the additional space.
�d
Revised September 21, 2021 P a g e I Additional Information

7/10/2023
Attachment A-Overburden/Waste Fines Disposal Area:
1.0 Introduction/Background:
3M's overburden/waste fines disposal area(or commonly referred to as the"stockpile area") is
currently designed as a place to dispose of mining refuse from the operation.This area spans 371 acres,
will be 240 feet tall,with 2:1 maximum slope,50'vertical lifts and 30'wide flat benches.There are
permanent stormwater sedimentation ponds with perimeter channels designed to be placed around this
area,with 4 out of the 9 of these ponds in service currently.See drawings C-716 and C-717 for reference
on location and design of this area.
This overburden/waste fines disposal area is designed for approximately 65,000,000 CY total capacity.
Currently,15,000,000 CY of material has been placed in this area.On an annual basis there is
approximately 700,000 CY placed in this area.
2.0 Material Summary:
These materials fit the definition of"mining refuse"as defined by GS 74-49(14)of the Mining Act of
1971.All of these materials are generated onsite from the mining,cleaning,and preparation of mined
substances. Furthermore,analytical testing has shown that these materials are not hazardous.The
purpose of this permit modification submittal is to provide a clear list of refuse materials to be
permanently disposed of,in accordance with condition 23,section D(ii)of the permit 19-16.
Mining refuse to be permanently disposed within the mining permit boundary is defined below:
1. Overburden:This is topsoil and loose rock on the surface above the solid rock that we are
mining.This material is removed with excavators and other heavy equipment from the mine and
hauled to the disposal area.
2. Waste rock direct from quarry:This is rock that is mined at the quarry that cannot be used due
to poor rock quality.This material is removed with excavators and other heavy equipment from
the mine and hauled to the disposal area.
3. Waste Fines from Processing:This is a mixture of fines and water that come out of a pugmill and
hauled to the disposal area.These fines come from several parts of the process and are
summarized below:
a) Fines from Crushing and Screening(C&S):These are screening fines from the rock crushing
part of the production for roofing granules.This material is inert(fine crushed rock)with no
additional raw materials added.
b) Baghouse fines from Coloring and Shipping processes:These are fine dust particles from the
"Coloring"and shipping areas of the plant,specifically from dust control equipment used

Ivap" during production and shipping of roofing granules.Raw materials(colorants)are added and
granules are fired/cured for final preparation prior to shipping.
4. Other materials directly connected with mining,cleaning and preparation of substances mined
including small metal items mixed with mined rock unable to be reclaimed or recycled,wire
cables,wire cables V-belts,steel reinforced air hoses,drill steel.3M also has a diverter chute
that is used to protect our crusher equipment when metal is detected within the rock.
Periodically,small parts of steel from the process can be comingled with the rock due to crusher
or screener degradation,or other adjacent equipment.
S. Waste Finished Granules:These are finished granules that typically would be shipped to
customers and ultimately put on roofing shingles;however,these granules do not meet
specification due to color or shape.These granules contain raw materials which are fired/cured.
The material volumes placed in the disposal area is approximately itemized as follows:
1. Overburden: 350,000 CY per year
2. Waste Rock direct from quarry 100,000 CY per year
3. Waste Fines from Processing:
a. C&S Fines- 245,000 CY per year
b. Coloring/Shipping Baghouse Fines 103 CY per year
4. Other materials negligible
S. Waste(off-specification)Granules 5,200 CY per year
3.0 Material Composition and Testing/Analysis:
Overburden,waste rock from quarry,and all fines from crushing and screening(C&S) have no raw
materials added,thus these materials are essentially inert material that clearly fit the definition of Mine
Refuse.
Coloring and Shipping Baghouse Fines and Waste Granules contain colorants/pigments.As shown from
the table above,Coloring and Shipping Baghouse Fines and Waste Granules are a very small fraction of
the entire volume of total mine refuse disposed of on-site.Coloring/Shipping Baghouse Fines are
approximately 0.01%and Waste(off-specification)Granules are approximately 0.75%of total material
being disposed of on an annual basis.
Toxicity Characteristic Leaching Procedure(TCLP)testing for metals has been completed for these
materials and it has been verified that this material is not hazardous.The analytical results for these
materials are"non-detect"(ND)or below the EPA allowable limit.The TCLP data is included in this
attachment.