20210725_NCGS_Comments

NC GEOLOGICAL SURVEY
MINING PERMIT APPLICATION REVIEW CHECKLIST
Mining is . complete this Section
Application/Permit No: 16-86 Action: New Modification Transfer
Applicant Name:
Sunland Sand and Gravel, Inc.
iLj
Mine Name: -
Carteret Dirt Pit
County:
Carteret
Latitude:
34.7156
7.5 Quad: I
Swansboro
Longitude:
-77.0000
Attached page 1-3 of the mine application.
Suspense Date for Comments: 108/13/2021
NCGS to complete this Section
Geological Significance: YES NO ✓�
Commodity: sand and soil
[Mineral Resources:
sand
1985 Geological Map Unit:
Tpy -- Yorktown Formation and Duplin Formation, Undivided
Other Geological Map Units:
Carteret County is south of the Neuse River— location in Duplin Fm.
Lithology:
Shelly, medium- to course -grained sand, sandy marl, and limestone, bluish gray.
Geochemistry Hazardous Minerals:
N/A
Subsidence:
N/A
Slope Stability:
N/A
Seismic Hazard:
NIA
Hydrogeology:
Applicant plans to mine in the water as the site is mined.
Flood Plain Deposits:
Impact from flooding is not show at the site but storm surge will block access.
Comments:
At least two sections of NC Highway 24 are shown to be underwater from storm surge.
Access to the proposed mine site would be impacted if mined material could not be
removed from the proposed mine because of impacts to NC Highway 24.
Reviewer:
Kenneth B. Taylor, PG (NC#1835)
Date:
07/23/2021
Rev: 2020 ro

Proposed mine is located north of NC Highway 24. The two adjacent ponds north of NC Highway 24 is where previous mining occurred. The geology of the proposed mine site is Tpy — Yorktown Formation and Duplin
Formation, Undivided. Yorktown Formation: Fossiliferous clay with varying amounts of fin -grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in the area north of the Neuse River. Duplin
Formation: Shelly, medium- to coarse -grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River. Carteret County is south of the Neuse River. This location is in the Duplin Formation.

This map includes effective flood hazard data (current data) and represents the
flood hazards and flood risk areas currently used for flood insurance in Carteret
County, NC.
Newly revised boundaries are available, but have not been formally adopted yet
The preliminary products are still in review. Please click on the tab named
"Preliminary Flood Maps" to view this data.
Definitions:
0.2 Pa annual chance = Shaded X or 500-year flood zone.
At) = Area in me 100 year flood -zone subject to high flood velocities.
AE =100•year flood zone, or 1-Percent annual chance of base flood.
AEFW - 100-year floodway (channei or river)-
VE - 100-year flood zone with additional hazards due :o wave action.
UMWA
Carteret County Effective Flood Map
kk AE/AO; 1 % Flood Chance
' AO
Shaded X: 0.2% Flood Chance
bb VE. 1% Chance Flood + Wave Action
X, Outside Flood zone
Tax Parcel Data
Centerlines
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NC Flood Map does not show flooding impacting the proposed mine site, which can be identified by the two prior mined sites which are now ponds. At least two sections of NC Highway 24 are shown to be underwater from
storm surge. Access to the proposed mine site would be impacted if mined material could not be removed from the proposed mine because of impacts to NC Highway 24.
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