WQ0035749_Attachment B Certification_20230713

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
July 13, 2023
CHRIS PEOPLES, PE — CHIEF ENGINEER
NORTH CAROLINA DEPARTMENT OF TRANSPORTATION
1536 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27601-1536
Subject: Permit No. WQ0035749
NCDOT DGS and HOS Class A
Residuals Program
Attachment B Certification
Statewide
Dear Mr. Peoples:
In response to your permit major modification request received on February 8, 2023, and
subsequent additional information received on May 16, 2023, we are forwarding herewith a modified
Attachment B certified July 13, 2023, to the North Carolina Department of Transportation for the subject
program.
Modifications to the subject Attachment are as follows:
➢ Permitting of a temporary storage structure and evaporation ponds for the storage and
processing of residual diamond grinding slurry in Iredell County.
The modified Attachment B is effective from the date of certification until May 31, 2024, and shall
be subject to the conditions and limitations therein, as well as those specified in the above -referenced
permit. The Permittee shall submit a renewal application no later than December 3, 2023.
This certification can be contested as provided in Chapter 150B of the North Carolina General
Statutes by filing a Petition for a Contested Case Hearing (Petition) with the North Carolina Office of
Administrative Hearings (OAH) within 30 calendar days. Requirements for filing a Petition are set forth
in Chapter 150B of the North Carolina General Statutes and Title 26 of the North Carolina Administrative
Code. Those interested in filing may access additional information regarding the requirements for filing a
Petition and Petition forms at the OAH website or by calling the OAH Clerk's Office at [phone].
A party filing a Petition shall serve a copy of the Petition on the Department of Environmental Quality's
Office of General Counsel at 1601 Mail Service Center, Raleigh, NC 27699-1601. If the party filing the
Petition is not the Permittee, then the party shall also serve the Permittee pursuant to G.S. 15013-23(a).
� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617
NORTH GAROLINA i
gewrheM 0 Emlmampndl quay /`� 919.707.9000

Mr. Chris Peoples, PE
July 13, 2023
Page 2 of 2
Included with this permit are Division -approved plans and specifications. If you need any
additional information concerning this certification, please contact Erick Saunders at [phone] or
erickson.saunders&deq.nc. og_v.
Sincerely,
DDocuSigned by:
�...
�W0N83
Richard E. Rogers, Jr., Director
Division of Water Resources
cc: Iredell County Health Department (Electronic Copy)
Mooresville Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Casey P. Hurley, PE — The Lane Construction Corporation (Electronic Copy)
Laserfiche File (Electronic Copy)
Digital Permit Archive (Electronic Copy)

ATTACHMENT B — APPROVED TEMPORARY STORAGE STRUCTURES
North Carolina Department of Transportation
Certification Date: July 13, 2023
Permit Number: WQ0035749
Version: 2.2
Structure
Owner
County
Latitude
Longitude
Containment Basin
North Carolina Department of Transportation
Iredell
35.812820'
-80.860317'
Evaporation Basin 1
North Carolina Department of Transportation
Iredell
35.813053'
-80.860212'
Evaporation Basin 2
North Carolina Department of Transportation
Iredell
35.813045'
-80.860391'
I. TEMPORARY STORAGE STRUCTURE CONDITIONS
Upon completion of construction and prior to operation of the permitted modifications, the Permittee
shall submit an engineering certification from a North Carolina licensed Professional Engineer
certifying that the permitted facility has been constructed pursuant to G.S. 143-215.1, Administrative
Code Title 15A Subchapter 02T, this permit, and the Division -approved plans and specifications. For
phased and partially certified facilities, the Permittee shall retain the responsibility to track further
construction approved under this permit and shall provide a final engineering certification upon project
completion. The Permittee shall submit the Engineering Certification via the Non -Discharge online
portal. [15A NCAC 02T .0116(a)]
2. The Permittee shall notify the Mooresville Regional Office, telephone number [phone], at least
two business days in advance of the initial operation of the modifications so that the Division can
conduct a startup inspection. [15A NCAC 02T .0108(b)(1)(A)]
Prior to the operation of the permitted modifications, the Permittee shall install gauges to monitor
freeboard levels in the temporary storage structures. [15A NCAC 02T .0108(b)(1)(13), 02T .0507(f)]
4. The Permittee shall operate and maintain the permitted facilities pursuant to the following setbacks:
a. The Division permitted the modifications to the residual storage units herein on July 13, 2023, with
an application received on February 8, 2023. The setbacks for residual treatment and storage units
originally permitted or modified with an application received on or after September 1, 2018, are as
follows (all distances in feet):
I. Each habitable residence or place of assembly under separate ownership: 1001
ii. Each private or public water supply source: 100
iii. Surface waters such as intermittent and perennial streams, perennial waterbodies, 50
and wetlands:
iv. Each well with exception of monitoring wells: 100
v. Each property line: 50 2
' Habitable residences or places of assembly under separate ownership constructed after the
Division originally permitted or subsequently modified the facilities are exempt from this
setback.
2 Setbacks to property lines are not applicable when the Perinittee, or the entity from which the
Permittee is leasing, owns both parcels separated by the property line.
[ 15A NCAC 02T .1108(a), 02T .1108(f), 02T .1108(a)]
5. The Permittee shall prohibit public access to the residual storage facilities. [15A NCAC 02T
.0108(b)(1)(A)1
WQ0035749 Version 2.2 Attachment B Page 1 of 3

ATTACHMENT B — APPROVED TEMPORARY STORAGE STRUCTURES
North Carolina Department of Transportation Permit Number: WQ0035749
Certification Date: July 13, 2023 Version: 2.2
6. The Permittee shall maintain a freeboard of not less than two feet in the temporary storage structures.
[ 15A NCAC 02T .0 1 08(b)(1)(A)]
7. The Permittee shall provide gauges to monitor freeboard levels in the temporary storage structures.
These gauges shall have readily visible permanent markings, at inch or tenth of foot increments,
indicating the following elevations: the maximum liquid level at the top of the temporary liquid storage
volume, the minimum liquid level at the bottom of the temporary liquid storage volume, and the lowest
point on top of the dam. [15A NCAC 02T .0108(b)(1)(A)1
8. The Permittee shall establish and maintain a protective vegetative cover on all berms, pipe runs, erosion
control areas, surface water diversions, and earthen embankments (i.e., the outside toe of the
embankment to the maximum allowable temporary storage elevation on the inside of the embankment).
The Permittee shall remove all trees, shrubs, and other woody vegetation from earthen dikes and
embankments. The Permittee shall keep all earthen embankments mowed or otherwise controlled and
accessible. [15A NCAC 02T .0108(b)(1)(A)1
9. The Permittee shall measure and record weekly to the nearest inch or tenth of a foot of freeboard (Le.,
the waste level to the lowest embankment elevation) in the temporary storage structures. The Permittee
shall maintain the weekly freeboard records for eight years and shall make them available to the
Division upon request. [ 15A NCAC 02T .0108(c)]
10. The Permittee shall retain this permit and the Division -approved plans and specifications for the life of
the permitted facilities. [15A NCAC 02T .0105(o), 02T .0116(d)]
11. The Permittee shall comply with all permit conditions and requirements until the proper closure of the
permitted facilities, or until another appropriate authority permits the facilities. [15A NCAC 02T
.0105 ]
12. Solids generated during the operation of the temporary storage structures that do not contain free liquid
in accordance with EPA SW-846 Test Method 9095B (Paint Filter Liquids Test) are a solid waste. The
Permittee shall dispose of solid wastes pursuant to North Carolina Division of Waste Management rules
and regulations. [15A NCAC 02T .0108(b)(1)(A)]
WQ0035749 Version 2.2 Attachment B Page 2 of 3

ATTACHMENT B — APPROVED TEMPORARY STORAGE STRUCTURES
North Carolina Department of Transportation Permit Number: WQ0035749
Certification Date: July 13, 2023 Version: 2.2
ENGINEERING CERTIFICATION
❑ Partial ❑ Final
I, , as a duly licensed North Carolina Professional
Engineer, having ❑ periodically / ❑ fully observed the construction of the permitted modifications, do
hereby state to the best of my abilities that the facility was constructed in compliance with G.S. 143-215.1,
Administrative Code Title 15A Subchapter 02T, this permit, and the Division -approved plans and
specifications.
Documentation of any variation to this permit, and the Division -approved plans and specifications, is in the
attached as -built drawings.
Description of variations:
Professional Engineer's Name
Firm Name
Firm No.
Address
City
State
Zip Code
Telephone
Email A AE&
Seal, Signature, and Date
THE PERMITTEE SHALL SUBMIT THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING
ALL SUPPORTING DOCUMENTATION, VIA THE NON -DISCHARGE ONLINE PORTAL.
WQ0035749 Version 2.2 Attachment B Page 3 of 3

NCDENR Application No.:
WQ0035749
NCDOT Contract No.: C204163
NCDOTTIP No.: 1-3819B,1-1-6039
Statesville, Irodell County, NC
' I,q
'7jF=MANENT —DRY
DETENTION BASIN, NOT
1 1III ASSOCIATED WITH THE
DGS SYSTEM
500'RADIUS
AS ANADDED PRECAUTION, A
CENTER OF DGS BERM AND SILT FENCE WILL BE
[MANAGEMENT STEM I" UTILIZED TD SFRARATE THE
TWO SYSTEMS
NEAREST HOW LINE
470'FROM EDGE OF MAIN
CONTAINMENT BASIN
11X
NEAREST
RrIF
JURISDICTIONAL STREAM
400'FROM EDGE OF MAIN
ITBASIN
NEAREST WETLAND
BOUNDRY
465'FHOM EDGE OF MAIN
CONTAINMENT BASIN
-MATCHLINE- SEE SHEET NO. 11
4
rCFfLfNE-
SEE SHEET
00 Rr -- ---- - I
24 -A r 00 A
No. 10
Calculated By:
Plan View Location Map with Date:
Setbacks for DIGS Drawn By: Date: LANE
Management System Checked By: —Nolhinycompores—
Date: Submitted To: NCDOT Resident Engineer
Revision No.: 124 Prison Camp Rd, Statesville, NC 28625