NCG020992_Revised Application_20230309

11,1LULIVtU
Memo DEMLRn,-StormwaterProgram ARVIDIS
SUBJECT TO
Buechel Stone — Steel Gray Mine Stormwater Application NC DEQ — DEMLR Stormwater
Brittany Cook
DATE
March 3, 2023 PROJECT NUMBER
30105159
COPIES TO NAME
Chris Bucy — Buechel Stone Christopher Peters, PG
Kory Bestul — Buechel Stone 517.324.5052 (0); 517,927,3611 (M)
Chi s petersCo)ai cadls. corn
See attached for Revised Stormwater Permit Application for Buechel Stone Corporation Steel Gray Mine,
Spruce Pine, North Carolina. The Stormwater permit is being revised to add a new surface water discharge
outfall, Outfall 001.
Section 1 —Application Form
Section 2 - Figures (D-sized Plan Sheets)
Figure 1 — Quadrangle Map
Figure 2 — Site Plan — Proposed Plan Modification
Figure 3 — Approximate Drainage Area and Stormwater Features
Section 3—Attachments
Attachment 1:
Details of erosion and stormwater management features
Stormwater calculations
Attachment 2:
Mine Permit
Attachment 3
Groundwater Pumping Plan
Arcadls U.S., Inc., 120 N Washington Square, Suite 300, Lansing, Michigan, 517 337 0111, v,w z, js �u
rvoi covA m.,rc aoza.m aav

Section 1
Application Form

Division of Energy, Mineral, and Land Resources Land Quality Section
National Pollutant Discharge Elimination System
NCG020000
This general permit covers STORMWATER AND/OR WASTEWATER DISCHARGES
associated with activities under SIC (Standard Industrial Classification) Code 14
[Mineral Mining Industry] except for: peat mining, coal mining, metal mining,
oil and gas extraction, tourist gem mines, NCDOT borrow pits, in -stream sand
mining, and discharges from mining operations which are intermixed on site
with stormwater from concrete operations. You can find information on the
DEMLR Stormwater Program at deq.nc.gov/SW.
I FOR AGENCY USE ONLY I
Year
Check #
Directions: Print or type all entries on this application form. Send the original, Permit Assigned to
signed application with all required items listed in Item (9) below to: NCDEMLR
Stormwater Program, 512 N. Salisbury St.,1612 MSC, Raleigh, NC 27699-1612.
The submission of this form does not guarantee coverage under the General Permit. Prior to coverage under this
General Permit a site inspection will be conducted.
1. Owner/Operator (to whom all permit correspondence will be mailed):
Name of legal organizational entity:
Legally responsible person as signed in Item (10) below:
Buechel Stone Corporation
Chris Bucy
Street address:
City:
State and zip code:
7274 Hwy 221 N
Marion
NC, 28752
Telephone number:
Email address:
828-756-8220
[e-mail]
2. Industrial Facility (facility being permitted):
Facility name:
Facility environmental contact:
Steel Gray Mine
Chris Bucy
Street address:
City:
State and zip code:
Altapass Hwy
Spruce Pine
NC, 28777
Telephone Number:
Email address:
Latitude of entrance: 35.904930
Longitude of entrance:-82.032428
Parcel Identification Number (PIN)
1709-00-27-4028
4-digit SIC code:
Facility is:
Date operation is to begin or began:
1499
❑ New []Proposed ❑• Existing
2010
Brief description of the types of minerals mined at this facility:
black quartzite
Is this a processing -only facility for materials mined elsewhere?
Is this an inactive mine site?
❑ Yes
❑ Yes
I] No
I] No
Does total area of this mine site include ready -mixed concrete plant and/or asphalt plant areas?
❑ Yes, and has separate NPDES stormwater permits (provide permit numbers):
❑ Yes, and does not have separate NPDES stormwater permits
❑� No
Does this facility already have a valid Mining Permit from DEMUVs Land Quality Section?
DYes (please provide the Mining Permit Number) 61-19
❑ No (please indicate the status of the Mining Permit application)
Page 1 of 8

Are you applying for a discharge permit in the same location as a previously permitted mine?
El Yes (please provide permit number and mine name) 61-19, Buechel Stone Corporation Steel Gray Mine
❑ No
If the stormwater discharges to a municipal separate storm sewer system (MS4), name the operator of the MS4:
l N/A
3. Consultant (if applicable):
4.
Name of consultant:
Consulting firm:
Christopher S. Peters
Arcadis U.S., Inc.
Street address:
City:
State and zip code:
120 N Washington Square, Suite 300
Lansing
MI, 48933
Telephone number:
Email address:
517-324-5052
[e-mail]
and Buffers
Mining operation will precede development activities at this site:
❑ Yes
R No
Mine is located within one of the 20 Coastal Counties, and will it add more than 10,000 ftz of impervious surface:
❑ Yes (to both)
❑ No, this mine is within one of the 20 Coastal Counties, but will not at more than 10,000 ft' of impervious surface
❑� No, this mine is not within one of the 20 Coastal Counties
Mine is in the Neuse, Tar -Pamlico, or Catawba River Basins, OR in the Randleman or Jordan Water supply Watersheds?
❑ Yes (specify size of stream buffers)
❑� No
S. Mine Dewatering
Mine dewatering will occur at this site:
r❑ Yes ❑ No (mark N/A for the rest of this section)
Mine dewatering from this facility will be discharged to:
surface Waters and/or Wetlands
❑Other (specify)
❑Mine will not discharge dewatering to Surface Waters and/or Wetlands; specify how dewatering will occur and where
water will be directed:
[]N/A
Wetlands and/or Surface Waters are within 400' of the mine pit perimeter:
404/401 Certification permits required:
❑Yes (specify distance) 100 feet
[]Yes (briefly describe)
❑ No
❑ No
❑ N/A
❑r N/A
Have you been required to obtain a wetland delineation certified by the US Army Corps of Engineers?
❑ Yes (please attach to this application) ❑° No
6. Wastewater Treatment
Will this facility wash mined materials?
❑Yes ❑° No
Will discharges of process wastewater treatment systems occur (including possible recycle system overflows)
❑Yes (please describe)
❑� No
Page 2 of 8

Will this facility employ chemical additives to flocculate suspended solids?
❑ Yes (specify name/manufacturer/quantity of daily use)
El No
Note: please visit: https://files.nc.gov/ncdeg/Water+Quality/Environmental+Sciences/ATU/PAM8 30 18.pdf for list of
approved PAMS
Will any of the wastewater treatment facilities at this mine overflow only during rainfall events that exceed the 30-yr, 24-hr
rainfall event?
❑ Yes (specify which systems)
✓❑ No
Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
El Yes ❑� No
Wastewater Treatment Alternative Review as required by 15A NCAC 2H.0105(c)(2)
Types of wastewater this mine site will discharge: []Mine Dewatering ❑ Process Wastewater
Types of wastewater considered for this alternative review: ❑ Mine Dewatering ❑ Process Wastewater
Are there existing sewer lines within a one -mile radius?
❑ Yes
❑ Wastewater treatment plant will accept wastewater
❑ Is feasible to connect (explain)
❑ Is not feasible to connect (explain)
❑ Wastewater treatment plant will not accept wastewater (please attach letter documenting this)
❑ No
Are you already proposing a dosed -loop recycle system (CLRS) that meets design requirements of 15A NCAC 2T .10000?
❑Yes, for dewatering
❑ Yes, for process wastewater
❑ Yes, for both
❑ No, this option is technologically feasible (explain)
❑ No, this option is not technologically feasible (explain)
❑ No, this option is otherwise feasible (explain)
❑No, this option is otherwise not feasible (explain)
Recycle system would interfere with mining operation
What is the feasibility of building a CLRS compared to direct surface water discharge?
Surface or Subsurface Disposal System
❑ A surface or subsurface disposal system is technologically feasible (explain)
❑ A surface or subsurface disposal system is not technologically feasible (explain)
❑A surface or subsurface disposal system is otherwise feasible to implement (explain)
❑° A surface of subsurface disposal system is not otherwise feasible to implement (explain)
Given the low permeability of the rock discharge to groundwater is not feasible.
What is the feasibility of employing a subsurface of surface discharge as compared to a direct discharge to surface waters?
Direct discharge to surface water is the most technologically feasible option. Sotrmweter would be retainetl in a sedimentation basin before discharge to remove particulate matter.
Direct Discharge to surface waters is the most environmentally sound alternative to all reasonably cost-effective options
for the wastewaters being considered?
EjYes
❑ No
Page 3 of 8

If this review included all wastewater discharge types, would excluding some types make any of the above non -discharge
options feasible for some the wastewaters?
❑ Yes
0 No
7. Outfalis(s) At least one outfall is required to be eligible for coverage.
3-4 digit identifier:
Name of receiving water:
Classification:
❑ This water is impaired.
001
1 North Toe River
❑This watershed has a TMDL
Discharge from this outfall is from:
❑� Stonnwater S Mine Dewatering ❑ Process Wastewater
Discharge occurs from this outfall:
❑� Only during a rainfall event
❑ Intermittently (please indicate how often) �� - • d ^ m^� *- « ar • °W^ °- p
Continuously (please indicate flow in CFS)
Latitude of outfall: 35 54 06.61232
Longitude of outfall: 82 02 01.94062
Brief description of the industrial activities that drain to this outfall:
Mining of black quartzite
Do Vehicle Maintenance Activities occur in the drainage are of this outfall? ❑ Yes ❑ No
If yes, how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier:
Name of receiving water:
Classification:
This water is impaired.
I
❑ This watershed has a TMDL
Discharge from this outfall is from:
❑ Stormwater ❑ Mine Dewatering ❑ Process Wastewater
Discharge occurs from this outfall:
❑ Only during a rainfall event
❑ Intermittently (please indicate how often)
❑ Continuously (please indicate flow in CFS)
Latitude of outfall:
Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage are of this outfall? ❑ Yes ❑ No
If yes, how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier:
Name of receiving water:
Classification:
❑ This water is impaired.
❑This watershed has a TMDL
Discharge from this outfall is from:
❑ Stormwater [I mine Dewatering ❑ Process Wastewater
Discharge occurs from this outfall:
❑ Only during a rainfall event
❑ Intermittently (please indicate how often)
❑ Continuously (please indicate flow in CFS)
Latitude of outfall:
Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage are of this outfall? ❑ Yes ❑ No
If yes, how many gallons of new motor oil are used each month when averaged over the calendar ear?
Page 4 of 8

All outfalls must be listed and at least one outfail is required. Additional outfalls may be added in the section
"Additional Outfalls" found on the last page of this NCI.
8. Other Facility Conditions (check all that apply and explain accordingly):
9.
❑ This facility has any other NPDES permits. If checked, list the permit numbers for all current NPDES permits:
❑ This facility has Non -Discharge permits (e.g. recycle permit). If checked, list the permit numbers for all current Non -
Discharge permits:
0 This facility uses best management practices or structural stormwater control measures.
If checked, briefly describe the practices/measures and show on site diagram:
See attached figures and Attachment 1. Basins sized to manage water volume; jute net baffles to minimize sediemnt discharge through Outfall 001
❑ This facility has a Stormwater Pollution Prevention Plan (SWPPP).
If checked, please list date that SWPPP was implemented:
[I This facility stores hazardous waste stored in the 10D-year floodplain.
If checked, describe how the area is protected from flooding:
❑ This facility is a (mark all that apply)
❑ Hazardous Waste Generation Facility
❑ Hazardous Waste Treatment Facility
❑ Hazardous Waste Storage Facility
❑ Hazardous Waste Disposal Facility
If checked, indicate:
Kilograms of waste generated each month:
Type(s) of waste:
How material is stored:
Where material is stored:
Number of waste shipments per year:
Name of transport/disposal vendor:
Transport/disposal vendor EPA ID:
Vendor address:
❑ This facility is located on a Brownfield or SUPERFUND site
If checked, briefly describe the site conditions:
❑ Facility provides appropriate secondary containment for bulk storage of liquid materials
If checked, briefly describe these measures:
❑ Site has an active landfill within the mining permit boundary
If checked, please indicate type:
a) ❑ LCID (Land clearing and Inert Debris)
b) []other (specify)
KegUlre0 Items (Application will be returned unless allot the following items nave Deen included):
❑ Check for $100 made payable to NCDEQ
I ❑ Copy of most recent Annual Report to the NC Secretary of State I
❑� This completed application and any supporting documentation
r❑ Copy of the approved mining permit or indication of mining permit application status
❑ Copy of US Army Corps— approved wetland delineation (if applicable) I
Page 5 of 8

❑� Line drawing of the water flow through the facility or block flow diagram
r❑ Pictorial description of the nature of any sources of water and any collection and treatment measures
El A site diagram showing, at a minimum, existing and proposed:
a) outline of drainage areas
b) surface waters
c) stormwater management structures
d) location of stormwater outfalls corresponding to the drainage areas
e) runoff conveyance features
f) areas where materials are stored
g) impervious areas
h) site property lines
El 2 copies of large scale (24"06" minimum) site plan showing:
a) topographical lines
b) all outfall locations
c) applicable buffers and delineated wetlands
d) receiving waters
e) 100-year flood plain (if applicable)
r❑ Copy of county map or USGS quad sheet with the location of the facility clearly marked
If mines site is in one of the 20 Coastal Counties (if applicable)
❑ Applicant has check with the appropriate regional office to verify the need for a Coastal State Stormwater permit.
a) Indicate the Regional Office Contact:
+❑ Detailed list of:
a) impervious surface areas and percentages
b) sub -drainage areas
c) total drainage area
If mine is dewatering and near wetlands, or may otherwise impact surface waters or groundwater (if
applicable)
0 2 copies of large scale (24"x36" minimum) plans delineating areas on the listing acreage including:
a) wetlands
b) ditches
c) well -placements
d) pits
e) borrow areas
f) overburden storage
g) stormwater controls/BMPs
h) vehicle maintenance areas
i) settling basins
j) product process (such as screening, stockpiles, and waste piles)
k) total drainage area
I) impervious surface percentages (if state Stormwater programs apply)
m) applicable buffers
n) access and/or haul roads
❑✓ Pump dewatering size and information on its specifications
❑ Well information (design, depths, maintenance)
❑ Physical monitoring for the wetland areas
❑� Settling pond size information, if applicable
❑ Level spreader design, if applicable
I] Details about dewatering method
❑ Cone of influence calculations
Page 6 of 8

I[✓ Description of measures to prevent erosion and flooding
D Description and information about 401/404 permits that have been obtained
❑ copy of US Army Corps of Engineers wetlands delineations or approved wetland delineation (if applicable)
❑ I have contacted my local regional office about a Pumping Operation and Monitoring (POM) plan
a) Regional Office contact:
b) Date Contacted:
10. Applicant Certification:
North Carolina General Statute 143-215.6B (i) provides that: Any person who knowingly makes any false statement,
representation, or certification in any application, record, report, plan, or other document filed or required to be maintained
under this Article or a rule Implementing this Article ... shall be guilty of a Class 2 misdemeanor which may include a fine not
to exceed ten thousanddollars ($10,000). 1 hereby request coverage under the referenced General Permit.
Under penalty of law, I certify that:
❑� I am the person responsible for the permitted industrial activity, for satisfying the requirements of this permit, and for
any civil or criminal penalties incurred due to violations of this permit
❑r The Information submitted in this NO] is, to the -best of my knowledge and belief, true, accurate, and complete based on
my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the
information.
0 I will abide by all conditions of the NCG02 permit. I understand that coverage under this permit will constitute the
permit requirements forthe discharge(s) and Is enforceable in the same manner as an Individual.permit.
I hereby request coverage under the NCG020000 General Permit and understand that coverage under this permit will
constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an individual permit.
Printed Name of Person Signing: Chris Bucy
Title: Mine Operations Manager
03/03/2023
((Signature of Applicant)/ (Date Signed)
Mail the entire package to: DEMLR-StormwaterProgram
Department of Environmental Quality
512 N. Salisbury Street, 6 h floor
1612 Mail Service Center
Raleigh, NC 27599-1612
Page 7 of 8

Additional Outfalis
3-4 digit identifier:
Name of receiving water:
Classification:
❑ This water is on the 303(d) list.
❑ This watershed has a TMDL
Discharge from this outfall is from:
❑ Stormwater ❑ Mine Dewatering ❑ Process Wastewater
Discharge occurs from this outfall:
❑ Only during a rainfall event
❑ Intermittently (please indicate how often)
❑ Continuously (please indicate flow in CFS)
Latitude of outfall:
Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage are of this outfall? ❑ Yes ❑ No
If yes, how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier:
Name of receiving water:
Classification:
❑ This water is on the 303(d) list.
❑ This watershed has a TMDL
Discharge from this outfall is from:
❑ Stormwater ❑ Mine Dewatering ❑ Process Wastewater
Discharge occurs from this outfall:
❑ Only during a rainfall event
❑ Intermittently (please indicate how often)
❑ Continuously (please indicate flow in CFS)
Latitude of outfall:
Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage are of this outfall? ❑ Yes ❑ No
If yes, how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier:
Name of receiving water:
Classification:
❑ This water is on the 303(d) list.
[]This watershed has a TMDL
Discharge from this outfall is from:
❑Stormwater ❑ Mine Dewatering ❑Process Wastewater
Discharge occurs from this outfall:
❑ Only during a rainfall event
❑ Intermittently (please indicate how often)
[]Continuously (please indicate flow in CFS)
Latitude of outfall:
Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage are of this outfall? ❑ Yes ❑ No
If yes, how many gallons of new motor oil are used each month when averaged over the calendar year?
Page 8 of 8

Section 2
Figures (D-Sized Plan Sheets)

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REFERENCE: BASE MAP USGS 7.5. MIN. TOPO. QUAD., SPRUCE PINE, NC, 2017
0 2000' 4000'
I
Approximate Scale: 1 in. = 2000 ft.
pi
5
AREA
LOCATION
NORTH CAROLINA
BUECHEL STONE CORPORATION
STEEL GRAY MINE
SPRUCE PINE, NORTH CAROLINA
SITE LOCATION MAP
ARCADIS 1aE

Section 3
Attachment 1:
• Details of Erosion and Stormwater Management Features
• Stormwater Calculation
Attachment 2:
• Mine Permit
Attachment 3:
• Groundwater Pumping Plan

Attachment 1

Stormwater Design and Calculations
Buechel Stone
Steel Gray Mine
March 2023
Prepared By:
Arcadis CE
355 S. Main Street
Greenville
South Carolina
Phone:[phone]
Fax:
Our Ref:
30105159
4
Andrew Davis: P. �� 0
Senior Engineer
This document is intended only for the use of the individual or entity for which it was prepared and may contain information
that is privileged, confidential and exempt from disclosure under applicable law. Any dissemination, distribution or copying of
this document is strictly prohibited.
w arcadis com

LEGEND:
- - - - - - PERMIT BOUNDARY
(61.61 ACRES)
PROPOSED HAUL ROADS
(2.33 ACRES)
FEMA FLOOD HAZARD LIMIT
SEDIMENTATION AND STORMWATER
PONDS - PROPOSED
0 OUTFALL LOCATION
� s1oN11a1 eAeN SK-1
DRA4+AOE ARPA
asz Ac
PEARFLow nottl sTowk
laax cPs
REOIMtEO WLL6E
12re LF
REDVIREO SURFACE AREA
6.SW SF
PROVIDED VOLIBff:
36.100 CF
PRWX)EDSURFACEAIEA'
6AOo 8F
TOPWD .
wFT
g QUW .
Ion
TDPLENDm
210 PT
BpTTOIA IHM3M1k
Am"
510E SLOPES R�+k
Z`'+
OVERFLOW WENWIDTIk
16 FF
U RFLOW W£N10EPR1:
1b FT
OVERFLOWWEIRLNERWiL
S'IRAWWRAiT
$KgMERSDE:
]N
SRIMMERMR '
=114
DEWATEi+ND
213 DAY6
SOURCE:
1. BASEMAP COORDINATE SPACE IS NORTH CAROLINA STATE
PLANE, NADB3 (NC83F).
2. PARCEL DATA PROVIDED BY MITCHELL COUNTY, NC83F,
PUBLUSHED APRIL 2021.
3. SURVEY FILE PROVIDED BY MOUNTAINEER LAND SURVEYING.
4. AERIAL PROVIDED BY 2021 MICROSOFT CORPORATION,
DISTRIBUTION AIRBUS DS 2021.
5. GROUND SURFACE CONTOURS ARE BASED ON LOCAL ELEVATION
DATUM AND ARE APPROXIMATE.
0 b' fi0'
iiiiiii
BUECHEL STONE CORPORATION
STEEL GRAY MINE
SPRUCE PINE, MITCHELL COUNTY, NORTH CAROLINA
PROPOSED EROSION AND
SEDIMENTATION BASINS
FIGURE
04 ARCADIS 9

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OFAIRCLOD1 SKIMMER DISCHARGE SYSTEM WITH EM
N.T.S.

Skimmer Basin - Stormwater Drawdown
Okay
6.92 Disturbed Area (Acres)
16.42 Peak Flow from 10-year Storm (cfs)
12456 Required Volume ft3
5337 Required Surface Area ftZ
51.7 Suggested Width ft
103.3 Suggested Length ft
40 Trial Top Width at Spillway Invert ft
210 Trial Top Length at Spillway Invert ft
2.5 Trial Side Slope Ratio Z:1
6 Trial Depth ft (2 to 3.5 feet above grade)
10 Bottom Width ft
180 Bottom Length ft
1800 Bottom Area ft2
29700 Actual Volume ft3 Okay
8400 Actual Surface Area ftZ Okay
-Trial Weir Length ft
Trial Depth of Flow ft
17.0 Spillway Capacity cfs Okay
-Skimmer Size (inches) Skimmer Size
0.25 Head on Skimmer (feet) (Inches)
-Orifice Size (114 inch increments) 1.5
2.13 Dewatering Time (days) 2
Suggest about 3 days 2.5
3
4
5
6
8

Skimmer Basin - Mine Dewatering
Okay
6.92 Disturbed Area (Acres)
16.42 Peak Flow from 10-year Storm (cfs)
19436 Storage Volume at Bypass Weir ft3
5337 Required Surface Area ft2
51.7 Suggested Width ft
103.3 Suggested Length ft
Trial Top Width at Spillway Invert ft
Trial Top Length at Spillway Invert ft
Trial Side Slope Ratio Z:1
Trial Depth ft (2 to 3.5 feet above grade)
15 Bottom Width It
185 Bottom Length ft
2775 Bottom Area ft2
27417 Actual Volume ft3 Okay
8400 Actual Surface Area ft2 Okay
Trial Weir Length It
Trial Depth of Flow ft
17.0 Spillway Capacity cfs Okay
_Skimmer Size (inches)
0.25 Head on Skimmer (feet)
-Orifice Size (1A inch increments)
3.32 Dewatering Time (days)
Suggest about 3 days
"e
1.5
2
2.5
3
4
5
_ 6
8

NOTE: This prvredme i+ for evibrm ae. iv eha...1, and I, nor 14 b.
v,.d fm drJRv of dmurri.inR dnic., and ma• vor b. ,.hd for Imser
, ...-.1.
User Input Data
Calculated Value
Reference Data
Designed By: .!ns Date: 2/132023
Checked By: Date:
Company: nrcams
Project Name: Blue Ridge Quarries
Project No.: 30105159
Sit* Location (CityRown) space Pure
ChanneOWaterwayld. G7
Sr.p L Sekn . 6m mrnml ,mubk la u < cmGeOv, .vG algbcava
eruoe�nm 5cm vuvvaCrwn ,+pmdkavcmuTabk 8 oNep30510
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Roughness coefficient, n 0.033 T=ere a ose Tabet8 5f
Permissible velocity, Vp
(fes) 2.0 Us.. allvemble velechyfor bare sort
Sr.p 1 CakWn. me uvN Hm, J Ih .11—.,+.quan:e. iFewe
80d) (MCH ro ue,hat ape., x�m m+r r+,ume4 fa ever
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Design Stom 1Qyr
Requ*ed Flow, Q (cfs) am
Unit weight of water, y
(Ib/03) 62.4
Channel slope. s (ft/0) 0.01
Permissible shear stress,
Taua(Ib/0°) 1.45 T.br e..o5e
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Designed By: AS Date: 2113/2023
Checked By: Date:
Company: Arcadia
Project Name: Blue Ridge Quarries
Project No.: XI06159
Site Location (Cityfrown) apNm P9re
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Required Flow, Q c(s) 16.5
Unit weight of water, y
(Ibme) 62.4
Channel slope, s (Rift) 0.07
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Channel Report
Hydraflow Express Extension for Autodesk® Civil 31)O by Autodesk, Inc.
Channel C-1
Trapezoidal
Bottom Width (ft)
= 4.33
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.40
Invert Elev (ft)
= 2550.60
Slope (%)
= 1.00
N-Value
= 0.033
Calculations
Compute by:
Known Q
Known Q (cfs)
= 6.70
Elev (ft)
,53.00
2552.50
2551.50
2551.00
2550.50
150.00
Section
Thursday, Feb 16 2023
Highlighted
Depth (ft)
= 0.49
Q (cfs)
= 6.700
Area (sgft)
= 2.84
Velocity (ft/s)
= 2.36
Wetted Perim (ft)
= 7.43
Crit Depth, Yc (ft)
= 0.39
Top Width (ft)
= 7.27
EGL (ft)
= 0.58
2 4 6 8 10 12 14 16
Reach (ft)
Depth (ft)
2.40
1.90
fxl[l�
M
0.40
-0.10
M

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3DC•J by Autodesk, Inc.
Channel C-2
Trapezoidal
Bottom Width (ft)
= 16.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.50
Invert Elev (ft)
= 2550.60
Slope (%)
= 7.00
N-Value
= 0.036
Calculations
Compute by:
Known Q
Known Q (cfs)
= 16.50
Elev (ft)
,53.00 �
+bi A-11l
2552.00
2551.50
2551.00
2550.50
60.00
Section
0 5 10 15 20
Reach (ft)
Thursday, Feb 16 2023
Highlighted
Depth (ft)
= 0.25
Q (cfs)
= 16.50
Area (sqft)
= 4.19
Velocity (ft/s)
= 3.94
Wetted Perim (ft)
= 17.58
Crit Depth, Yc (ft)
= 0.32
Top Width (ft)
= 17.50
EGL (ft)
= 0.49
25 30
Depth (ft)
2.40
f0-'I111•
1.40
0.40
-0.10
1 -0.60
35

Watershed Model Schematic Hydraflow Hydrographs Extension for Autodesk® Civil 31)® by Autodesk. Inc. v2022
1 �2Y+� 3
f�
� � CD
In
Y6
710
Legend
tLyLL Oriain
1
SCS Runoff
DA-1
2
SCS Runoff
DA-2
3
SCS Runoff
DA-3
4
SCS Runoff
DA-4
5
Reservoir
DA-1 Routing
6
Combine
Combined DA
7
Reservoir
Pond Routing
4Y
1. J
Project: Hydrograph Model.gpw I Wednesday, 02 / 22 / 2023

Hydrograph Summary Report Hydraflow Hydrographs Extension for Autodesk® Civil 300 by Autodesk, Inc. v2022
lyd.
,do.
Hydrograph
type
(origin)
Peak
flow
(cfs)
Time
Interval
(min)
Time to
Peak
(min)
Hyd.
volume
(tuft)
Inflow
hyd(s)
Maximum
elevation
(fit)
Total
strge used
(tuft)
Hydrograph
Description
1
SCS Runoff
6.843
2
728
25,277
—
—
DA-1
2
SCS Runoff
6.373
2
730
24,042
DA-2
3
SCS Runoff
2:665
2
730
10,052
DA-3
4
SCS Runoff
0.888
2
730
3,351
DA-4
5
Reservoir
6.660
2
732
25.105
1
2551.23
6.124
DA-1 Routing
6
Combine
16.55
2
730
62.550
2, 3, 4,
—
Combined DA
5
7
Reservoir
i
11.80
2
740
60,192
6
2550.97
21,773
Pond Routing
Hydrograph Model.gpw
Return Period: 10 Year
Wednesday, 02 / 22 / 2023

Hydrograph Report
Hydraflow Hydrographs Extension for Autodesk® Civil 3130 by Autodesk, Inc. v2022
Wednesday, 02 / 22 / 2023
Hyd. No. 1
DA-1
Hydrograph type
= SCS Runoff
Peak discharge
= 6.843 cfs
Storm frequency
= 10 yrs
Time to peak
= 12.13 hrs
Time interval
= 2 min
Hyd. volume
= 25,277 cult
Drainage area
= 2.450 ac
Curve number
= 72'
Basin Slope
= 0.0 %
Hydraulic length
= 0 ft
Tc method
= TR55
Time of conc. (Tc)
= 24.30 min
Total precip.
= 5.87 in
Distribution
= Type II
Storm duration
= 24 hrs
Shape factor
= 484
Composite (Area/CN) = [(0.720 x 86) + (1.730 x 66)] 12.450
Q (Cfs)
7.00
YGO
5.00
EVO 171
G MI
2.00
1.00
0.00
0 2 4
— Hyd No. 1
6 8
DA-1
Hyd. No. 1 -- 10 Year
Q (Cfs)
7.00
"fhl
5.00
4.00
3.00
2.00
1.00
r 0.00
10 12 14 16 18 20 22 24 26
Time (hrs)

Hydrograph Report
HydraOow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2022
Wednesday, 02 / 22 / 2023
Hyd. No. 2
DA-2
Hydrograph type
= SCS Runoff
Peak discharge
= 6.373 cfs
Storm frequency
= 10 yrs
Time to peak
= 12.17 hrs
Time interval
= 2 min
Hyd. volume
= 24,042 cuft
Drainage area
= 2.870 ac
Curve number
= 66
Basin Slope
= 0.0 %
Hydraulic length
= 0 ft
Tc method
= TR55
Time of cone. (Tc)
= 24.30 min
Total precip.
= 5.87 in
Distribution
= Type II
Storm duration
= 24 hrs
Shape factor
= 484
Q (Cfs)
7.00
. 11
5.00
4.00
3.00
2.00
1.00
0.00
0 2 4
Hyd No. 2
G
DA-2
Hyd. No. 2 -- 10 Year
Q (cfs)
7.00
M
6[oI9
4.00
3.00
2.00
1.00
' J OM
10 12 14 16 18 20 22 24 26
Time (hrs)

Hydrograph Report
Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2022
Hyd. No. 3
DA-3
Hydrograph type
= SCS Runoff
Storm frequency
= 10 yrs
Time interval
= 2 min
Drainage area
= 1.200 ac
Basin Slope
= 0.0 %
Tc method
= TR55
Total precip.
= 5.87 in
Storm duration
= 24 hrs
Q (Cfs)
3.00
2.00
1.00
0.00
0 2 4
Hyd No. 3
Peak discharge
Time to peak
Hyd. volume
Curve number
Hydraulic length
Time of conc. (Tc)
Distribution
Shape factor
DA-3
Hyd. No. 3 -- 10 Year
Wednesday, 02 / 22 12023
= 2.665 cfs
= 12.17 hrs
= 10,052 cuft
= 66
= 0 ft
= 24.30 min
= Type II
= 484
6 8 10 12 14 16 18 20 22 24
Q (Cfs)
3.00
2.00
1.00
-1 0.00
26
Time (hrs)

Hydrograph Report
Hydrailow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2022
Hyd. No. 4
DA-4
Hydrograph type
= SCS Runoff
Storm frequency
= 10 yrs
Time interval
= 2 min
Drainage area
= 0.400 ac
Basin Slope
= 0.0 %
Tc method
= TR55
Total precip.
= 5.87 in
Storm duration
= 24 hrs
Q (cfs)
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
000
0 2 4
Hyd No. 4
Wednesday, 02 / 2212023
Peak discharge
= 0.888 cfs
Time to peak
= 12.17 hrs
Hyd. volume
= 3,351 cult
Curve number
= 66
Hydraulic length
= 0 ft
Time of conc. (Tc)
= 24.30 min
Distribution
= Type II
Shape factor
= 484
DA-4
Hyd. No. 4 -- 10 Year Q (cfs)
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
6 8 10 12 14 16 18 20 22 24 26
Time (hrs)

Hydrograph Report
Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2022
Wednesday, 02 / 22 / 2023
Hyd. No. 5
DA-1 Routing
Hydrograph type
= Reservoir
Peak discharge
= 6.660 cfs
Storm frequency
= 10 yrs
Time to peak
= 12.20 hrs
Time interval
= 2 min
Hyd. volume
= 25,105 cuft
Inflow hyd. No.
= 1 - DA-1
Max. Elevation
= 2551.23 ft
Reservoir name
= Proposed DA-1 Basin
Max. Storage
= 6,124 cuft
Storage Indication method used. Wet pond routing start elevation = 2550.50 ft
Q (cfs)
7.00
.m
5.00
4.00
3.00
2.00
i7Qr➢
0.00
0 2 4
— Hyd No. 5
DA-1 Routing
Hyd. No. 5 -- 10 Year
Q (cfs)
7.00
Milli
5.00
4.00
2.00
1.00
0.00
6 8 10 12 14 16 18 20 22 24 26
Time (hrs)
— Hyd No. 1 I I : I ! I Total storage used = 6,124 tuft

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Hydrograph Report
Hydraflow Hydrographs Extension for Aulodesk® Civil 3D® by Aulodesk, Inc. v2022
Hyd. No. 6
Combined DA
Hydrograph type
= Combine
Storm frequency
= 10 yrs
Time interval
= 2 min
Inflow hyds.
= 2, 3, 4, 5
Wednesday, 02 / 22 / 2023
Peak discharge = 16.55 cfs
Time to peak = 12.17 hrs
Hyd. volume = 62,550 cuft
Contrib. drain. area = 4.470 ac
Q (Cfs) Hyd. No. 6 -- 10 Year Q (cfs)
18.00 18.00
15.00 15.00
12.00 12.00
9.00 9.00
6.00 6.00
3.00 3.00
0.00 0.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26
— Hyd No. 6 —Hyd No. 2 —Hyd No. 3 —Hyd No. 4 Time (hrs)
— Hyd No. 5

Hydrograph Report
Hydraflow Hydrographs Extension for Autodesk® Civil 30® by Autodesk, Inc. v2022 Wednesday, 02 / 2212023
Hyd. No. 7
Pond Routing
Hydrograph type
= Reservoir
Peak discharge
= 11.80 cfs
Storm frequency
= 10 yrs
Time to peak
= 12.33 hrs
Time interval
= 2 min
Hyd. volume
= 60,192 cuft
Inflow hyd. No.
= 6 -Combined DA
Max. Elevation
= 2550.97 ft
Reservoir name
= Proposed Main Basin
Max. Storage
= 21,773 cult
Storage Indication method used.
Q (Cfs)
18.00
15.00
12.00
• m
.M
3.00
0.00 '
0 2 4
Hyd No. 7
Pond Routing
Hyd. No. 7 -- 10 Year
Q (Cfs)
18.00
15.00
12.00
3.00
0.00
6 8 10 12 14 16 18 20 22 24 26
Time (hrs)
— Hyd No. 6 iL11I1.11 Total storage used = 21,773 tuft

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Attachment 2

0
ROY COOPER
Governor
ELIZABETH S. BISER V
Secrerart•
BRIAN WRENN NORTH CAROLINA
Direcmr Environmental Qaalilr
July 18, 2022
Certified Mail
Return Receipt Requested
7016 2140 0000 0565 2595
Mr. Merle D. Andrews
Blue Ridge Quarries Inc.
8487 US 221 N
Marion, NC 28752
Re: Mining Permit No. 61-19
Steel Gray Mine
Mitchell County
French Broad River Basin
Dear Mr. Andrews:
Your request to have Mining Permit No. 61-19 transferred in its entirety from your company to Buechel Stone
Corporation has been approved. As we have received Buechel Stone Corporation's required surety in an amount
sufficient to cover the present operation, your company is hereby released from further responsibility for this site
with respect to The Mining Act of 1971. Therefore, I am returning your $25,300.00 surety bond (No. S-787700)
issued by NGM Insurance Company, to you for your disposal.
Thank you for your cooperation in this matter.
Sincerely, e�
David Miller, PE
State Mining Engineer
DM/ap
Enclosures: (Surety Bond No. S-787700)
cc: Ms. Shawna Riddle, PE
Mr. Beau Thomas-DOL, Mine and Quarry Bureau
DE Q North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources
_ 512 North Salisbury Street 11bl2 Mail Service Center I Raleigh. North Carolina 27699 Ibl2
V
•+ 919.7079200

ROY COOPER
Governor
ELIZABETH S. BISER
Secreran,
BRIAN WRENN
Director
Chris Bucy
Buechel Stone Corporation
7274 Highway 221 North
Marion, NC 28752
NORTH CAROLINA
F.nriromuenrul Qualih-
July 18. 2022
RE: Steel Gray Mine - Mining Permit No. 61-19
Mitchell County - French Broad River Basin
Dear Mr. Bucy:
Your recent request to have the above referenced mining permit, issued to Blue Ridge Quarries, Inc., has been
approved and is simultaneously modified and transferred in its entirety to you. As we have received the required
surety in an amount sufficient to cover the present operation, I am enclosing the modified and transferred mining
permit. The permit number and mine name shall remain the same as before the transfer.
The modification is to increase the permitted acreage to 61.63 acres and the affected acreage at this site to 8.90
acres as indicated in the application, on the Mine Maps received March 31, 2022, and June 16, 2022, and in the
supplemental information received November 9, 2021, February 23, 2022, March 31, 2022, June 6, 2022, and June
6, 2022. The modification includes increasing the permit boundary to the property limits. A copy of the modified
permit is enclosed.
The conditions in the modified permit were based primarily upon the initial application. Modifications were made
as indicated by the modification request and as required to ensure compliance with The Mining Act of 1971. Please
review the permit carefully and notify this office of any objections or questions you may have concerning the terms
of the permit. It is your responsibility to fully understand and comply with the conditions of your mining permit. 1
would like to draw your particular attention to the following conditions where minor additions or changes were
made: 111.3.C, IIIA.B, 111.6, 111.11.13, IV, VI, VI11.3.
The issuance of a mining permit and/or any modification to it does not supersede local zoning regulations. The
responsibility of compliance with any applicable zoning regulations lies with you.
As a reminder, your permitted acreage at this site is 61.63 acres and the amount of land you are approved to disturb
is 8.90 acres.
Please contact me at [phone] if you have any questions.
Sinc l),
David Miller, PE
State Mining Engineer
DM/ap
Enclosures
cc: Ms. Shawna Riddle
North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources
512 North Salisbury Street I 102 Mail Service Center 1 Raleigh, North Carolina 27699 1612
919.7079200

DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
LAND QUALITY SECTION
For the operation of a mining activity
In accordance with the provisions of N.C.G.S. §74-46 through 68, "The
Mining Act of 1971," Mining Permit Rule 15A NCAC 05B, and other
applicable laws, rules, and regulations
Permission is hereby granted to:
Buechel Stone Corporation
Steel Gray Mine
Mitchell County - Permit No. 61-19
for the operation of a
Building Stone Quarry
Which shall provide that the usefulness, productivity and scenic values of
all lands and waters affected by this mining operation will receive the
greatest practical degree of protection and restoration.

Page 2
In accordance with the application for this mining permit, which is hereby approved by the Department of
Environmental Quality, hereinafter referred to as the Department, and in conformity with the approved Reclamation
Plan attached to and incorporated as part of this permit, provisions must be made for the protection of the
surrounding environment and for reclamation of the land and water affected by the permitted mining operation.
This permit is expressly conditioned upon compliance with all the requirements of the approved Reclamation Plan.
However, completed performance of the approved Reclamation Plan is a separable obligation, secured by the bond
or other security on file with the Department, and may survive the revocation or suspension of this permit
This permit is not transferable by the permittee with the following exception: If another operator succeeds to the
interest of the permittee in the permitted mining operation, by virtue of a sale, lease, assignment or otherwise, the
Department may release the permittee from the duties imposed upon him by the conditions of his permit and by the
Mining Act with reference to the permitted operation, and transfer the permit to the successor operator, provided
that both operators have complied with the requirements of the Mining Act and that the successor operator agrees
to assume the duties of the permittee with reference to reclamation of the affected land and posts a suitable bond or
other security.
In the event that the Department determines that the permittee or permitteds successor is not complying with the
Reclamation Plan or other terms and conditions of this permit or is failing to achieve the purposes and requirements
of the Mining Act, the Department may give the operator written notice of its intent to modify, revoke or suspend
the permit, or its intent to modify the Reclamation Plan as incorporated in the permit. Ile operator shall have right
to a hearing at a designated time and place on any proposed modification, revocation, or suspension by the
Department Alternatively, and in addition to the above, the Department may institute other enforcement procedures
authorized by law.
I. Definitions. N.C.G.S. 574-49.
Wherever used or referred to in this permit, unless the context clearly indicates otherwise, terms shall have
the same meaning as supplied by the Mining Act, N.C.G.S. §74-49.
II. Modifications. N.C.G.S. §74-52.
November 10, 2010: This permit has been issued to Blue Ridge Quarries, Inc.
December 1.2017: This permit has been issued for the life of site or the duration of the lease term.
July 18, 2022: This permit has been simultaneously modified and transferred in its entirety to Buechel
Stone Corporation. Ile modification increases the permitted area to 61.63 acres and increasing the affected
area to 8.90 acres as indicated on the mine maps received June 16, 2022. The modification includes
increasing the permit boundary to the property limits.
This permit is valid for the life of the site or life of lease, if applicable, as defined by Session Law 2017-
209 and has no expiration date. However, all provisions of N.C.G.S. §74-51 and N.C.G.S. §74-52 still
apply for new, transferred, and modified mining permits.
III. Operating Conditions. N.C.G.S. §74-51.
This Permit shall be subject to the provisions of the Mining Act, N.C.G.S. §74-46, et seq., and to the
following conditions and limitations:

Page 3
1. Wastewater and Ouarry Dewatering,
A. Any wastewater processing or mine dewatering shall be in accordance with the permitting
requirements and rules promulgated by the N.C. Environmental Management Commission.
B. Any stormwater runoff from the affected areas at the site shall be in accordance with any
applicable permit requirements and regulations promulgated by the Environmental
Protection Agency and enforced by the N.C. Environmental Management Commission. It
shall be the permittee's responsibility to contact the Stormwater Program to secure any
necessary stormwater permits or other approval documents.
2. Air Ouality and Dust Control.
A. Any mining process producing air contamination emissions shall be subject to the
permitting requirements and rules promulgated by the N.C. Environmental Management
Commission and enforced by the Division of Air Quality.
B. During mining operations, water trucks or other means that may be necessary shall be
utilized to prevent dust from leaving the permitted area
3. Buffer Zones.
A. Any mining activity affecting waters of the State, waters of the U. S., or wetlands shall be
in accordance with the requirements and regulations promulgated and enforced by the N.
C. Environmental Management Commission.
B. Sufficient buffer shall be maintained between any affected land and any adjoining
waterway or wetland to prevent sedimentation of that waterway or wetland from erosion
of the affected land and to preserve the integrity of the natural watercourse or wetland.
C. All buffer zones shown on the Mine Maps received June 16, 2022, shall be maintained
between any excavation and any mining permit boundary to protect adjacent property.
4. Erosion and Sediment Control.
A. Adequate mechanical barriers including but not limited to diversions, earthen dikes,
sediment check dams, sediment retarding structures, rip rap pits, or ditches shall be
provided in the initial stages of any land disturbance and maintained to prevent sediment
from discharging onto adjacent surface areas or into any lake, wetland, or natural
watercourse in proximity to the affected land.
B. All mining activities, including the installation and maintenance of all erosion and
sedimentation control measures, shall be conducted as indicated in the application, on the
Mine Maps received March 31, 2022, and June 16, 2022, and in the supplemental
information received November 9, 2021, February 23, 2022, March 31, 2022, June 6, 2022,
and June 6, 2022.
C. An erosion and sediment control plan(s) shall be submitted to the Department for approval
prior to any land disturbing activities not indicated on the revised erosion control plan or
mine maps submitted with the approved application for a mining permit and any approved
revisions to it. Such areas include, but are not limited to, expansion outside of the approved
pit area, creek crossings, or expansion of overburden or waste disposal areas.
Groundwater Protection.
Groundwater monitoring wells shall be installed and monitored as deemed appropriate by the
Department.

Page 4
6. Permanently Marked Boundaries.
All affected area boundaries (8.90 acres) shall be permanently marked at the site on 100-foot
intervals unless the line of sight allows for larger spacing intervals.
7. Graded Slopes and Fills.
A. The angle for graded slopes and fills shall be no greater than the angle which can be
retained by vegetative cover or other adequate erosion control measure, structure, or
device. In any event, exposed slopes or any excavated channels, the erosion of which may
cause off -site damage because of siltation, shall be planted, or otherwise provided with
groundcover, devices, or structures sufficient to restrain such erosion.
B. Overburden cut slopes along the perimeter of the quarry opening shall be graded to a
minimum 2 horizontal to 1 vertical or flatter and shall be stabilized within 60 days of
completion. Furthermore, a minimum ten (10) foot wide horizontal safety bench shall be
provided at the top of the rock and at the toe of any overburden slope.
C. Waste rock piles shall not be constructed with steep, near vertical side slopes. Side slopes
shall be constructed in such a manner as to provide for a stable, safe configuration at
reclamation.
8. Surface Drainage.
The affected land shall be graded so as to prevent collection of pools of water that are, or likely to
become, noxious or foul. Necessary structures such as drainage ditches or conduits shall be
constructed or installed when required to prevent such conditions.
9. Blasting.
A. The operator shall monitor each blast with a seismograph located at a distance no farther
than the closest off site regularly occupied structure not owned or leased by the operator.
A seismographic record including peak particle velocity, air overpressure, and vibration
frequency levels shall be kept for each blast (except as provided under Operating Condition
Nos.111.9.0 and 1I1.9.13 of this permit). The following blasting conditions shall be observed
by the mine operator to prevent hazard to persons and adjacent property from surface
blasting:
B. In all blasting operations, the maximum peak particle velocity of any component of ground
motion shall not exceed Figure 9-1(below) at the immediate location of any regularly
occupied building outside of the permitted area such as a dwelling house, church, school,
or public, commercial, or institutional building.

Page 5
Figure 9-1- Allowable Peak Particle Velocity by Frequency
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81ast Vibration Frequency, Hz
Figure 1 Altemative blasting level criteria
(Source modified from figure B-1. Bureau of Mines R18507)
C. In the event of seismograph malfunction or other condition which prevents monitoring,
blasting shall be conducted in accordance with the following formulas:
W = (D/D=Y (EQ. 8.1)
D. = D/Wr12 (EQ. 8.2)
V = 160(D.Y" (EQ. 83) 1
W = Maximum charge weight of explosives per delay period of 8.0
milliseconds or more (pounds).
D = Distance from the blast site to the nearest inhabited building not owned or
leased by the mine operator. (feet).
Ds = Scaled distance factor.
V = Peak Particle Velocity (inches per second).
The peak particle velocity of any component shall not exceed 1.0 inch per second, for the
purposes of this Section.

Page 6
D. Air blast overpressure resulting from surface blasting shall not exceed 129 decibels linear
(dBL) as measured at the immediate location of any regularly occupied building not owned
or leased by the operator outside of the permitted area such as a dwelling house, church,
school, or public, commercial, or institutional building, unless an alternate level based on
the sensitivity of the seismograph microphone as specified below is being used:
Lower Frequency Limit of Measuring System (13z)
Max Level (dBL)
0.1 Hz or lower -flat response
134 peak
2.0 Hz or lower -flat response
133 peak
2.0 Hz or lower -flat response
129 peak
E. In the event of seismograph malfunction or other condition which prevents monitoring,
blasting shall be conducted in accordance with the following formulas:
U = 82 (D/Wa.33)-12 (EQ 8.4)
To convert U (psi) to P (dBL):
P = 20 x log (U/2.9x10-9) (EQ 8.5)
Confined Air blast/Overpressure (dBL) for quarry situation:
A=P-35
(EQ 8.6)
U = Unconfined air overpressure (pounds per square inch).
W = Maximum charge weight of explosives per delay period of 8.0
milliseconds or more (pounds).
D = Distance from the blast site to the nearest inhabited building not owned or
leased by the mine operator (feet).
P = Unconfined air overpressure (decibels).
A = Air blast or air overpressure for typical quarry situations (decibels).
The air blast/overpressure shall not exceed 129 decibels, for the purposes of this Section.
F. The operator shall maintain records on each individual blast describing:
i. date and time of the blast.
I the total number of holes.
iii. pattern of holes and delay of intervals.
iv. depth and size of holes.
V. type and total pounds of explosives.
vi. maximum pounds per delay interval.
vii. amount of stemming and burden for each hole.
viii. blast location.
ix. distance from blast to closest offsite regularly occupied structure.

Page 7
X. weather conditions at the time of the blast.
Records shall be maintained at the permittee's mine office and copies shall be provided to
the Department upon request.
G. If ground vibration or Air blast limits are exceeded, the operator will immediately report
the event with causes and corrective actions to the Department. Use of explosives at the
blast site that produced the excessive reading shall case until corrective actions approved
by the Department are taken. However, blasting may occur in other approved areas within
the permitted boundary. Authorization to blast at the blast site may be granted at the time
of the verbal reporting of the high ground vibration or high air blast reading if the
circumstances justify verbal approval. Failure to report will constitute a permit violation.
H. The operator shall take all reasonable precautions to ensure that flyrock is not thrown
beyond areas where the access is temporarily or permanently guarded by the operator.
Failure to take corrective measures to prevent flyrock and repeated instances of flyrock
shall be considered a violation of the Mining Permit.
1. Should flyrock occur beyond the permitted and guarded areas, the operator shall
immediately report the incident to the Department. Further use of explosives on the mine
site shall be suspended until the following actions have been taken:
L A thorough investigation as to the cause(s) of the incident shall be conducted.
ii. A report detailing the investigation shall be provided to the Department within 10
days ofthe incident. The report shall, at a minimum, document the cause(s) of the
incident along with technical and management actions that will be taken to prevent
further incidents. The report shall meet with the approval of the Department before
blasting may resume at the mine site.
J. The operator shall provide to the Department a copy of the findings of any seismic studies
conducted at the mine site in response to an exceedance of a level allowed by these blasting
conditions. The operator shall make every reasonable effort to incorporate the studies'
recommendations into the production blasting program.
K. The operator shall, when requested by the Department, give 24hour advance notice to the
Division of Energy, Mineral and Land Resources' Regional Office prior to any blast during
a period for which notice is requested.
10. Highwall Barrier
A. A physical barrier consisting of large boulders placed end -to -end or fencing shall be
maintained at all times along the perimeter of any highwall to prevent inadvertent public
access. In addition, a minimum 10 foot wide horizontal safety bench shall be provided at
the junction between the top of rock and the toe of any overburden cut slope.
11. Visual Screening.
A. Existing vegetation shall be maintained between the mine and public thoroughfares to
screen the operation from the public. Additional screening methods, such as constructing
earthen berms, shall be employed as deemed appropriate by the Department.
B. Vegetated earthen berms shall be located and constructed as shown on the Mine Maps
received March 31, 2022, and June 16, 2022. In addition to grasses, long leaf and/or
Virginia pines or other acceptable evergreen species shall be planted as deemed appropriate
by the Department to improve visual and noise buffering.

Page 8
12. Refuse Disposal.
A. No on -site disposal of refuse or other solid waste that is generated outside of the mining
permit area shall be allowed within the boundaries of the mining permit area unless
authorization to conduct said disposal has first been obtained from both the Division of
Waste Management and the Division of Energy, Mineral and Land Resources, Department
of Environmental Quality. The method of disposal shall be consistent with the approved
reclamation plan.
B. Mining refuse as defined by N.C.G.S. §74-49 (14) of The Mining Act of 1971 generated
on -site and directly associated with the mining activity may be disposed of in a designated
refuse area. All other waste products must be disposed of in a disposal facility approved
by the Division of Waste Management. No petroleum products, acids, solvents or their
storage containers or any other material that may be considered hazardous shall be disposed
of within the permitted area
C. For the purposes of this permit, the Division of Energy, Mineral and Land Resources
considers the following materials to be "mining refuse" (in addition to those specifically
listed underN.C.G.S. §74-49 (14) of the N.C. Mining Act of 1971):
i. on -site generated land clearing debris.
ii. conveyor belts.
iii. wire cables.
iv. v-belts.
V. steel reinforced air hoses.
vi. drill steel.
D. If mining refuse is to be permanently disposed within the mining permit boundary, the
following information must be provided to and approved by the Division of Energy,
Mineral and land Resources prior to commencement of such disposal:
i. the approximate boundaries and size of the refuse disposal area
ii. a list of refuse items to be disposed.
iii. verification that a minimum of 4 feet of cover will be provided over the refuse.
iv. verification that the refuse will be disposed at least 4 feet above the seasonally
high-water table; and,
V. verification that a permanent vegetative groundcover will be established.
E. Used, clean concrete shall only be allowed on permitted quarry sites that have obtained a
valid air permit and are allowed to operate crushing operations for the purposes ofrecycling
and reuse provided that the following conditions are met:
i. Appropriate quality control measures shall be taken when the used concrete arrives
onsite to ensure that all such concrete processed onsite is clean, inert material.
ii. Used, clean concrete shall be temporarily stockpiled and processed within existing
approved affected areas draining to existing approved erosion and sedimentation
control measures.
iii. No used, clean concrete material shall be permanently disposed of onsite.
iv. Any foreign material that may be found within the used concrete must be separated
from the concrete and properly recycled or disposed off -site.

Page 9
IV. Annual Reclamation Report and Annual Operatint=_ Fee. N.C.G.S. §74-55.
An Annual Reclamation Report and Annual Operating Fee of $400.00 shall be submitted to the Department
by September 1 of each year until reclamation is completed and approved for release by the Department
V. Prior Approval Required for Plan Modification. N.C.G.S. §74-52.
The operator shall notify the Department in writing of the desire to delete, modify or otherwise change any
part of the mining, reclamation, or erosiontsediment control plan contained in the approved application for
a mining permit or any approved revision to it Approval to implement such changes must be obtained
from the Department prior to on -site implementation of the revisions.
V1. Bonding. N.C.G.S. §74-54.
The security, which was posted pursuant to N.C.G.S. §74-54 in the form of a $39,400.00 Irrevocable
Standby letter of Credit, is sufficient to cover the operation as indicated in the approved application. This
security must remain in force for this permit to be valid. The total affected land shall not exceed the bonded
acreage.
VII. Archaeological Resources. N.C.G.S. §70-3.
1. Minimum Requirements
A. Authorized representatives of the Division of Archives and History shall be granted access
to the site to determine the presence of significant archaeological resources.
B. Pursuant to N.C.G.S. §70-3, "The Unmarked Human Burial and Human Skeletal Remains
Protection Act," should the operator or any person in his employ encounter human skeletal
remains, immediate notification shall be provided to the county medical examiner and the
chief archaeologist' North Carolina Division of Archives and History.
VEIL Approved Reclamation Plan. N.C.G.S. §74-53.
The Mining Permit incorporates this Reclamation Plan, the performance of which is a condition on the
continuing validity of that Mining Permit Additionally, the Reclamation Plan is a separable obligation of
the permittee, which continues beyond the terns of the Mining Permit
To comply with N.C.G.S. §74-53 the approved plan will provide:
1. Minimum Standards.
A. The final slopes in all excavations in soil, sand, gravel, and other unconsolidated materials
shall be at such an angle as to minimize the possibility of slides and be consistent with the
future use of the land.
B. Provisions for safety to persons and to adjoining property must be provided in all
excavations in rock.
C. All overburden and spoil shall be left in a configuration which is in accordance with
accepted conservation practices, and which is suitable for the proposed subsequent use of
the land.

Page 10
D. No small pools of water shall be allowed to collect or remain on the mined area that are, or
are likely to become noxious, odious, or foul.
E. The Rvegetation plan shall conform to accepted and recommended agronomic and
reforestation practices as established by the North Carolina Agricultural Experiment
Station and the North Carolina Forest Service.
F. Permittee shall conduct reclamation activities pursuant to the Reclamation Plan herein
incorporated. These activities shall be conducted according to the time schedule included
in the plan, which shall to the extent feasible provide reclamation simultaneous with mining
operations and in any event, provide reclamation at the earliest practicable time after
completion or termination of mining on any segment of the permit area and shall be
completed within two years after completion or termination of mining.
2. Reclamation Conditions.
A. Provided further, and subject to the Reclamation schedule, the planned reclamation shall
be to allow the quarry excavation to fill with water, provide a permanent barricade (fence)
along the top of any high wall, and grade and revegetate any areas in unconsolidated
material.
B. The specifications for surface gradient restoration to a surface suitable for the planned
future use are as follows:
i. All areas of unconsolidated material such as overburden or waste piles shall be
graded to a 2 horizontal to 1 vertical or flatter slope and terraced as necessary to
insure slope stability.
ii. Any settling ponds and sediment control basins shall be backfilled, graded, and
stabilized or cleaned out and made into acceptable lake areas.
iii. The processing, stockpile, and other disturbed areas neighboring the mine
excavation shall be leveled and smoothed.
iv. Compacted surfaces shall be disced, subsoiled, or otherwise prepared before
revegetation.
V. No contaminants shall be permanently disposed of at the mine site. On -site
disposal of waste shall be in accordance with Operating Conditions Nos. Ill.12.A
through 111.12.D.
vi. The affected land shall be graded to prevent the collection of noxious or foul water.
3. Revegetation Plan.
After site preparation, all disturbed land areas shall be revegetated as per the Revegetation Plan
received March 31, 2022
Whenever possible, disturbed area should be vegetated with native warm season grasses such as
switch grass, Indian grass, bluestem, and gamma grass.
In addition, the permittee shall consult with a professional wildlife biologist with the N.C. Wildlife
Resources Commission to enhance post -project wildlife habitat at the site.
4. Reclamation Plan.
Reclamation shall be conducted simultaneously with mining to the extent feasible. In any event,
reclamation shall be initiated as soon as feasible after completion or termination of mining of any

Page I I
mine segment under permit. Final reclamation, including revegetation, shall be completed within
two years of completion or termination of mining.
IX. Issuance and Modification Summary. N.C.G.S. V4-51 and &74-52.
This permit issued November 10, 2010, is hereby simultaneously transferred, and modified this 18th day
of July 2022 pursuant to N.C.G.S. §74-51 and N.C.G.S §74-52.
By:!� 01 IGo,
Brian Wrenn, Director
Division of Energy, Mineral, and land Resources
By Authority of the Secretary
Of the Department of Environmental Quality

ROY COOPER
Governor
ELIZABETH S. BISER
secretary
BRIAN WRENN
Director
El
NORTH CAROLINA
Environmental Quality
NOTICE REGARDING THE RIGHT TO CONTEST A MINING PERMIT DECISION
You have previously expressed an interest and/or are listed as an adjoining landowner in the mining application for
mining activities off SR 1265 (Washburn Rd.) in Mitchell County. The mining permit (no. 61-19) was modified
on July 18, 2022.
Right of Persons Aggrieved to File a Contested Case for the Issuance of a New Mining Permit: Pursuant to
NCGS 150B, Article 3, a parry or person aggrieved may file a contested case by filing a petition under NCGS I SOB-
23 in the Office of Administrative Hearings within 60 days after the Division provides notice of its decision on a
permit application.
Right of Persons Aggrieved to File a Contested Case for the Issuance of a Modification to a Mining Permit:
Pursuant to NCGS 74-61 and NCGS 150B, Article 3, a party or person aggrieved may file a contested case by filing
a petition underNCGS 150E-23 in the Office of Administrative Hearings within 30 days after the Division provides
notice of its decision on a permit application, as provided in NCGS I SOB-23(f).
General Filing Instructions: A petition for contested case hearing must be in the form of a written petition,
conforming to NCGS ISOB-23, and filed with the Office of Administrative Hearings, 1711 New Hope Church
Road, Raleigh NC, 27609, along with a fee in an amount provided in NCGS 150E-23.2. A petition for contested
case hearing form may be obtained upon request from the Office of Administrative Hearings or on its website at
https://www.oah.nc.gov/hearings-division/filing/hearing-fortes. Additional specific instructions for filing a
petition are set forth at 26 NCAC Chapter 03.
Service Instructions: A party filing a contested case is required to serve a copy of the petition, by any means
authorized under 26 NCAC 03 .0102, on the process agent for the Department of Environmental Quality:
William F. Lane, General Counsel
North Carolina Department of Environmental Quality
1601 Mail Service Center
Raleigh, North Carolina 27699-1601
If the party filing the petition is a person aggrieved other than the permittee or permit applicant, the party must also
serve the permittee in accordance with NCGS 150B-23(a).
r r r
Be aware that other rules or laws may apply to the filing of a petition for a contested case. Additional information
is available at httl2s:/hvww.oah.nc.govlhearings-division/hearing_process/filing-contested-case. Please contact the
Office of Administrative Hearings at [phone] or [e-mail] with all questions regarding
the filing fee and/or the details of the filing proce
Brian Wrenn
This notice was mailed on
Director
Division of Energy, Mineral, and Land Resources
North Carolina Department of Environmental Quality
Brenda Hams
Mining Program Administrative Assistant

Attachment 3

Buechel Stone —Steel Gray Mine
Basin Pumping Plan
Site Condition
Operations at the Steel Gray Mine are currently on hold pending a renewal of the facility Mine Permit.
During this time, the previously mined area at the base of the active face has filled with water.
Accumulated water is a combination of surface water runoff from precipitation as well as groundwater
recharge through fractures in the bedrock, with the majority of the water being from groundwater.
In order to complete mining in the area, water must be pumped out to allow for safe operations. To do
this in a manner compliant with applicable regulations established by Part G of the NCG02 permit,
comingled mine groundwater and surface runoff water must be pumped into and through the new
stormwater skimmer basin. Due to the changing volume of water present, sizing the skimmer basin for
dewatering activities is not possible. To address this, the following Pumping Operations and Monitoring
Plan has been prepared.
Pumping
The recently designed skimmer basin has an available storage volume of approximately 19,500 cubic
feet (cf) at the outfall weir elevation (INV = 2550.60), and a total storage area of 29,595 cf to the top of
berm (Ele. = 2552.00). The available storage volume of 19,500 cf exceeds the required storage capacity
of 12,500 cf(1,800 cu. ft./acre) established in Section 6.64 of the NCDE4 Erosion and Sediment Control
Manual. The following Pumping Operations and Monitoring Plan has been prepared in order to provide
guidance for dewatering of the active face area.
The pumping plan is as follows:
1. Verify pending weather conditions are absent any large-scale precipitation events. If any
stormwater events (greater than 1-inch) are anticipated in the next 24-hours, do not initiate
dewatering activities.
2. Verify current free board in the pond (i.e. top of water to overflow weir outfall elevation). If less
than 2 feet, do not initiate pumping.
3. If the criteria #1 and #2 are acceptable, pumping can be initiated.
a. Pumping should start at an approximate flow rate of 200 gpm.
b. Water from the mine pit will be pumped over the haul road (via hose) and into basin
DA-1 (see Figure 2)
c. If ponds are empty at the beginning of pumping, the available pumping time is
approximately 12 hours.
d. The discharge rate of the skimmer is approximately 0.066 cfs or approximately 30 gpm,
which will result in approximately 3.4 days to fully drain via the skimmer. Note that it is
not required to fully drain the basin prior to continuing to dewater.

4. A record of the pumping events will be maintained on site. Records will include date, start
time, stop time, estimated water levels, and any precipitation events that occur during these
pumping events.
5. During pumping events, the pump/basin should be inspected every 2 hours at a minimum to
verify operation in accordance with this plan.