WQ0035749_More Information Received_20240705

Initial Review
Reviewer
nathaniel.thornburg
Is this submittal an application? (Excluding additional information.) *
Yes No
If not an application what is the submittal type?* Annual Report
Residual Annual Report
Additional Information
Other
Permit Number (IR) * W00035749
Applicant/Permittee North Carolina Department of Transportation
Email Notifications
Does this need review by the hydrogeologist? * Yes No
Regional Office
CO Reviewer
Admin Reviewer

Submittal Form
Project Contact Information
Please provide information on the person to be contacted by NDB Staff regarding electronic submittal, confirmation of receipt, and other correspondence.
......................................................................................................................................................................................................................................................................................... ... ... ... ... ... .. ... ... ... ... ..
Name* Jeremy Goodwin
Email Address*
[e-mail]
Project Information
.........................
Application/Document Type*
New (Fee Required)
Modification - Major (Fee Required)
Renewal with Major Modification (Fee
Required)
Annual Report
Additional Information
Other
Phone Number*
9197072942
Modification - Minor
Renewal
GW-59, NDMR, NDMLR, NDAR-1,
N DAR-2
Residual Annual Report
Change of Ownership
We no longer accept these monitoring reports through this portal. Please click on the link below and it will take you to the correct form.
https://edoes.deq.nc.gov/Forms/NonDischarge_Monitoring_Report
Permit Type:* Wastewater Irrigation High -Rate Infiltration
Other Wastewater Reclaimed Water
Closed -Loop Recycle Residuals
Single -Family Residence Wastewater Other
Irrigation
Permit Number: * WQ0035749
Has Current Existing permit number
Applicant/Permittee Address* 1 South Wilmington Street Raleigh NC, 27601
Facility Name* NCDOT DGS and HOS Class A Residuals Program
Please provide comments/notes on your current submittal below.
Attention: Erick Saunders
Requested Information for address comments for NCDOT DGS/HOS Class A Residuals Land Application Permit WQ0035749.
At this time, paper copies are no longer required. If you have any questions about what is required, please contact Nathaniel Thornburg
at [e-mail].
Please attach all information required or requested for this submittal to be reviewed here.
(Application Form, Engineering Plans, Specifications, Calculations, Etc.)
WQ0035749 a240607 NCDOT Additional Information
58.88MB
Request 1_20240703_signed.pdf
Upload only 1 PDF document (less than 250 MB). Multiple documents must be combined into one PDF file unless file is larger
than upload limit.
* By checking this box, I acknowledge that I understand the application will not be accepted for pre -review until the fee (if required) has
been received by the Non -Discharge Branch. Application fees must be submitted by check or money order and made payable to the
North Carolina Department of Environmental Quality (NCDEQ). I also confirm that the uploaded document is a single PDF with all parts
of the application in correct order (as specified by the application).
Mail payment to:
NCDEQ — Division of Water Resources
Attn: Non -Discharge Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Signature
Submission Date 7/5/2024

STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
ROY COOPER J.R. “JOEY” HOPKINS
GOVERNOR SECRETARY

Mailing Address:
NC DEPARTMENT OF TRANSPORTATION
ROADSIDE ENVIRONMENTAL UNIT
1557 MAIL SERVICE CENTER
RALEIGH, NC 27699-1557
Telephone: [phone]
Customer Service: 1-877-368-4968

Website: www.ncdot.gov
Location:
TRANSPORTATION BUILDING
1 SOUTH WILMINGTON STREET
RALEIGH, NC 27601

July 3, 2024

NCDEQ/DWR
Attn: Erick Saunders
Water Quality Permitting Section
1617 Mail Service Center
Raleigh, North Carolina 27699-1617

Attention: Erick Saunders, Non-Discharge Permitting Unit

Reference: Additional Information Request #1 for Application for Renewal of
NCDOT Distribution and Land Application of Diamond Grinding Slurry
and Hydrodemolition Operation Slurry Distribution Class A Residuals
Statewide
Permit No. WQ0035749
North Carolina Department of Transportation

Mr. Saunders,

North Carolina Department of Transportation is submitting the enclosed information to
fulfil the request for Additional Information #1 for the NCDOT Renewal of NCDOT
Distribution and Land Application of Diamond Grinding Slurry and Hydrodemolition
Operation Slurry Distribution Class A Residuals Statewide application.

If there is any further information required or questions regarding the information
provided, please do not hesitate to contact Jeremy Goodwin, [phone],
[e-mail] for further assistance.

Sincerely,

Jeremy Goodwin, PE

TABLE OF CONTENTS

Section 1 Responses to Request for Information #1

Attachment
A FORM DCAR 06-16 (ITEM D. - PROGRAM INFORMATION) I-3802B
Basin Information

B FORM DCAR 06-16 (ITEM D. - PROGRAM INFORMATION)
I-3819B/U-6029 Basin Information

C FORM DCAR 06-16 (ITEM H. – OPERATION AND MAINTENANCE
PLAN) Updated O&M Plan

D FORM RSC 06-16 (ITEM C. – Residuals Quality Information) DGS
Laboratory Analysis

SECTION 1

FORM DCAR 06-16 (ITEM D. - PROGRAM INFORMATION)

D. Program Information

Comment E: 1. This program also includes the operation of temporary earthen
storage structures and evaporation ponds permitted in the
Attachment B Certifications approved on September 10, 2019 and
July 13, 2023. The program information shall be updated to include
the operation of these structures as a part of this permit.

Diamond Grinding Slurry residuals will be recovered and stored within mobile storage
units or approved residuals storage facilities at or near each road project that is scheduled
for diamond grinding. Currently two modifications for temporary earthen storage of have
been approved for the existing permit term. The storage basin for the I-3802B in China
Grove area, Rowan County has been closed out. See Attachment A for location, storage
modification approvals, and status imagery of the I-3802B prior basin location. The
approved storage modification basin for I-3819B/U-6039 in Statesville, Iredell County is
the process of being closed out. See Attachment B for location, storage modification
approvals, and status imagery of the I-3819B/U-6039 basin location. At both locations a
primary receiving basin stored the bulk of the materials. Surface/floating pumps were
used to lift the liquid/water fraction to elevated basins where the remnant water was
returned to the grinding operation or allowed to evaporate. Solids, exhibiting concrete
properties, were left in place and utilized as beneficial fill for the construction of the
transportation projects.

HOS will be recovered and stored within mobile storage units. Typically, HOS residual
volumes do not require the use of approved earthen residuals storage facilities. However,
if a need for earthen storage facilities arises, the facility will be permitted at or near each
bridge project that is scheduled for hydrodemolition and will follow the plan
requirements as detailed for DGS residuals storage facilities.

FORM DCAR 06-16 (ITEM H. – Operation and Maintenance Plans)

Comment F: 1. See Item E.1. The O&M Plan shall be updated to describe the
operation of these earthen storage structures in the program.

2. The program information for the hydrodemolition operation slurry
and diamond grinding slurry programs mention the use of mobile
storage units as referenced in permit Condition III.8. The O&M Plan
shall be updated to describe the operations of these storage structures
for this program.

The O&M plan has been updated to include temporary mobile and earthen storage (see
Attachment C) with the changes in blue text for ease of review.

FORM RSC 06-16 (ITEM B. – Residuals Source-Generating Facility Information)

Comment I: 1. Process Flow Diagram & Narrative, See Comment E.1.

All earthen storage units will be individually permitted as a modification by NCDEQ
Non-Discharge Branch per previous discussions with Non-Discharge Branch staff. The
Contractor will be responsible for determining the need for earthen storage in order to
complete the concrete diamond grinding. The Contractor will submit a preliminary plan
to the NCDOT, which upon acceptance will be submitted to the Non-Discharge
Branch for review and approval. The modification submittal shall be prepared in
accordance with the requirements of form DCAR06-16, specifically items E and F. Once
approved, the Contractor shall operate the storage basin in accordance with the
requirements and conditions stipulated in the permit modification. Routine inspection and
maintenance will be performed in accordance with the operation and maintenance plan
included in the modification submittal or as amended by the approved permit
modification. Remnant water may be returned to the grinding operation. Any discharge
of DGS or remnant water will be done in accordance with permit WQ0035749. Upon
completion of the diamond grinding operation, any remaining DGS or remnant water will
be land applied under WQ0035749 or taken to a permitted facility for disposal. Any
material passing EPA Test Method 9095B Paint Filter Liquids Test shall be considered
solid waste and shall be disposed of in accordance with Solid Waste Rules. The site shall
be graded to blend to existing ground contours or brought to finished plan elevations and
appropriately stabilized with vegetation if not located under proposed paved surfaces

FORM RSC 06-16 (ITEM C. – Residuals Quality Information)

Comment L: 1. Item C on the RSC 06-16 form requests the laboratory analytical
reports and operational data used to complete this certification. Please
provide the most recent calcium carbonate equivalence (CCE),
percent total solids, and pH for a DGS and an HOS project,
respectively.

The most recent DGS analysis for calcium carbonate equivalence (CCE), percent total
solids, and pH is attached (see Attachment D). HOS land application was not performed
during this permit term and no analysis is available.

ATTACHMENT A – I-3802B, I-85, Rowan County, Earthen Storage Basin
Information

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
NORTH CAROLINA
Environmental Quality
September 10, 2019
TIM M. LITTLE, 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 DCAR
Attachment B Certification
Statewide
Dear Mr. Little:
In accordance with your permit major modification request received July 1, 2019, and subsequent
additional information received July 31, 2019, we are forwarding herewith an Attachment B certified
September 10, 2019, to the North Carolina Department of Transportation for the subject residuals
management program.
The subject Attachment includes: a temporary storage structure and evaporation ponds for the
storage and processing of residual diamond grinding slurry that cannot be disposed of in accordance with
permit number WQ0035749 dated March 1, 2019.
This Attachment B shall be effective from the date of certification until May 31, 2024 (i.e.,
expiration date of the current permit), and shall be subject to the conditions and limitations as specified
therein, as well as those specified in the above -referenced permit. Please note that the Permittee shall
submit a renewal application no later than December 3, 2023.
Please note that only the maps for the newly permitted temporary storage sites are attached to this
letter. It is the Permittee's responsibility to ensure that a complete permit is created by inserting these
documents into the previously issued permit.
If any parts, requirements or limitations contained in this certification are unacceptable, the
Permittee has the right to request an adjudicatory hearing upon written request within 30 days following
receipt of this permit. This request shall be in the form of a written petition, conforming to Chapter 150B
of the North Carolina General Statutes, and filed with the Office of Administrative Hearings at 6714 Mail
Service Center, Raleigh, NC 27699-6714. Otherwise, this certification shall be final and binding.
DENorth Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617
aoRn+caAouru
o�rmreemau.�gr 919.707.9000

Mr. Tim M. Little, PE
September 10, 2019
Page 2 of 2
One set of approved plans and specifications is being forwarded to you. If you need any additional
information concerning this matter, please contact Erick Saunders at [phone] or
erickson.saunders(a ncdenr.,, ov.
Sincerely,
mda t
per, Director
DivisioWater Resources
cc: Rowan 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)
Central Files

ATTACHMENT B — APPROVED TEMPORARY STORAGE STRUCTURES
North Carolina Department of Transportation — NCDOT DGS AND HOS DCAR Permit Number: WQ0035749
Certification Date: September 10, 2019
Version: 2.1
Structure
Owner
County
Latitude
Longitude ]
Containment Basin
North Carolina Department of Transportation
Rowan
35.5345260
-80.5727810
Evaporation Basin 1
North Carolina Department of Transportation
Rowan
35.5346080
-80.573091 °
Evaporation Basin 2
North Carolina Department of Transportation
Rowan
35.5347920
-80.5730550
I. TEMPORARY STORAGE STRUCTURE CONDITIONS
1. Upon completion of construction and prior to operation of the permitted facilities, the Permittee shall
submit an engineering certification from a North Carolina licensed Professional Engineer certifying
that the permitted facilities have been constructed in accordance with 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 resi3onsibility to track further
construction ai�i)roved under this hermit. and shall provide a final engineerint; certification upon oroiect
comnJetion. Mail the Engineering Certification to the Division of Water Resources, Non -Discharge
Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617, or Non-Dischara_ e.Reports,a�ncdenr.aov.
[15A NCAC 02T .0116(a)]
2. The Permittee shall notify the appropriate Regional Office, at least two business days in advance of
initial operation of the constructed facilities so that the Division can conduct a startup inspection. [15A
NCAC 02T .0108(b)(1)(B)]
3. A gauge to monitor waste levels in the temporary storage structures shall be installed prior to operation.
Caution shall be taken not to damage the integrity of any liner (if present) when installing a gauge.
[15A NCAC 02T .0108(b)(1)(B), 02T .0505(d)]
4. The facilities and sites herein were permitted per the following setbacks:
a. The setbacks for residual storage units originally permitted or modified 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
1 Habitable residences or places of assembly under separate ownership constructed after the
facilities herein were originally permitted or subsequently modified are exempt from this
setback.
2 Setbacks to property lines are not applicable when the Permittee, 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(g)]
5. The Permittee shall prohibit public access to the residuals storage facilities. [15A NCAC 02T
.0108(b)(1)]
WQ0035749 Version 2.1 Attachment B Page 1 of 3

ATTACHMENT B — APPROVED TEMPORARY STORAGE STRUCTURES
North Carolina Department of Transportation — NCDOT DGS AND HOS DCAR Permit Number: WQ0035749
Certification Date: September 10, 2019 Version: 2.1
6. Freeboard in the temporary storage structures shall not be less than two feet at any time. [ 15A NCAC
02T .0108(b)(1)]
7. Gauges to monitor waste levels in the temporary storage structures shall be provided. These gauges
shall have readily visible permanent markings, at inch or tenth of a foot increments, indicating the
following elevations: maximum liquid level at the top of the temporary liquid storage volume;
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)]
8. A protective vegetative cover shall be established and maintained on all berms, pipe runs, erosion
control areas, surface water diversions, and earthen embankments (i.e., outside toe of embankment to
maximum allowable temporary storage elevation on the inside of the embankment). Trees, shrubs, and
other woody vegetation shall not be allowed to grow on the earthen dikes or embankments. Earthen
embankments shall be kept mowed or otherwise controlled and accessible. [15A NCAC 02T
.0108(b)(1)]
9. Freeboard (i.e., waste level to the lowest embankment elevation) in the temporary storage structures
shall be measured to the nearest inch or tenth of a foot, and recorded weekly. Weekly freeboard records
shall be maintained and shall be made available to the Division upon request. [15A NCAC 02T
.0108(c)]
10. The Permittee shall retain a set of Division -approved plans and specifications for the life of the facilities
permitted herein. [15A NCAC 02T .0105(o)]
11. The Permittee shall maintain this permit until the proper closure of all facilities permitted herein, or
until the facilities permitted herein are permitted by another authority. [15A NCAC 02T .01050)]
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) shall be considered a
solid waste. The Permittee shall dispose of solid wastes in accordance with the rules and regulations of
the North Carolina Division of Waste Management. [15A NCAC 02T .0105(c)]
WQ0035749 Version 2.1 Attachment B Page 2 of 3

ATTACHMENT B — APPROVED TEMPORARY STORAGE STRUCTURES
North Carolina Department of Transportation — NCDOT DGS AND HOS DCAR Permit Number: WQ0035749
Certification Date: September 10, 2019 Version: 2.1
ENGINEERING CERTIFICATION
❑ Partial ❑ Final
I, . as a duly licensed North Carolina Professional
Engineer, having ❑ periodically / ❑ fully observed the construction of the permitted facilities, 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 I Zip Code
Telephone Email
Seal, Signature, and Date
THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING
DOCUMENTATION, SHALL BE SENT TO THE FOLLOWING ADDRESS:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
NON -DISCHARGE BRANCH
By U.S. Postal Service By Courier/Special Delivery
1617 MAIL SERVICE CENTER 512 N. SALISBURY ST.
RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604
WQ0035749 Version 2.1 Attachment B Page 3 of 3

Figure 2: DGS Management Basins
Exit 65: Old Beatty Ford Road DGS Basins Site Map

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Main Containment Basin:
Design Dimensions
Bottom: 140 Long x 43 Wide
18 Deep with 2:1 side slopes
Top: 212 Long x 115 Wide
Volume: 9,557 CY (1.93M Gal)
Twin Evaporation Basins:
Design Dimensions (Typical)
Bottom: 38 Long x 13 Wide
3 Deep with 2:1 side slopes
Top: 54 Long x 29 Wide
Volume: 94 CY (19K Gal)
Z.
•tit,-__��w•�... a
Actual [As -Built Dimensions)
139x43'
18.2' Deep
216x120'
9,564 CY (1.93M Gal)
Actual #1(As-Built Dimensions)
311
4.38' Deep
511
180 CY (36K Gal)
Graphic Scale (Feet)
o too 200 300
NCDENR Application No.:
WQ0035749
NCDOT Contract No.: C203702
NCDOT TIP No.: 13802B
China Grove, Rowan County, NC
am -$7
-9L- STA. �es.<;4O. FIT
tLEV.. 6TA.00
Chain Link
Fence
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37x17'
4.46' Deep
61x39
225 CY (45K Gal) $^�
Layout of
DGS Management System
C1
53
Calculated By:
Date:
Drawn By:
Date:
Checked By:
Date:
Revision Nii
,
Water Truck
Loading Platform
Slurry Tanker
Discharge
Platform
Haul Road
CPH
7/22/2019 LANE
Submitted To:
20190828
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Revisions:
1) The evaporation basins have
been reoriented to better match
field conditions.
2) A chain link fence has been
added around the containment
basin.
3) The Water Truck Loading
platform has been reoriented to
better match field conditions.
4) The use of coir fiber baffles in the
containment basin is an approved
option provided they are draped
from above.
5) The intake for the pump in the
containment basin may be
suspended from above as opposed
to being mounted on a floating
platform.
6) A depth gauge will be painted on
the wall of the containment basin.
7) The overflow spillway from EB 2
will flow back into EB 1 and EB 1 will
flow back into the CB.
Nothing Compares — .
NCDOT Resident Engineer
4770 South Main Street, Salisbury NC 28147

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ATTACHMENT B – I-3819B/U-6039, I-40/I-77/US-21, Iredell County Earthen
Storage Basin Information

+i 9
4
Ps Home
'mch>cnT� �1
The Hone Dry A
" i SQ
'41.14
CI
N v
i '
DDOSan !Fe[en mg
snpr
Domn fWaM HQ'llfd
O
a�
>tetar Wel SnplTtlnte� v
Q ration 9
®
F J
Pe
-. �. �.. ,�t.�... \rrl
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._
y
DWld+ry Pua1lrvC Re9u1(s�
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h*k Pr , r
Q Q
NCDENR Application No.:
WO0035749
NCDOT Contract No.: C204163
NCDOT TIP No.: 1-3819B, U-6o39
Statesville, Iredell County, NC
Location Map for DGS
Management System
a
C']
35.812590,-80.860,88
Calculated By:
Date:
Drawn By:
Date:
Checked By:
Date:
Revision No.:
1,(.a•t9
0-ow rs
cra wo RQao�
Tro" Wash
"7M
OIa Mae t inr, i0
�f1
wWMMI ,._
i
The NO01!1 •
Marthas R►cfyM
� dd
v
1(n+q of If% a00 4et•tin
d
g
Jwt(a S•
CAR 04
R
�818fesvl�! LlIW! F
35 = t
sc.rytan Ril S
LANE
6
"Noihing Compares -.
Submitted To:
NCDOT Resident Engineer
124 Prison Camp
Rd, Statesville, NO 28625

PUMP
MAIN CONTAINMEI
TOP: 230' LONG X E
9' TO I V DEPTH WI
TWIN EVAPORATIC
TOP: 50' LONG X 2?
4' DEPTH WITH 2:1
NCDENR Application No.:
W00035749
NCDOT Contract No,; C204163
NCDOT TIP No.: 1-3819B, U-6039
Statesville, Iredell County, NC
Calculated By:
Date:
Proposed Layout of DGS
Drawn By:
Management System
Date:
Checked By:
Date:
Revision No.:
LANE
fC-
N.ih1ngC..pw, -.
Submitted To: NCDOT Resident Engineer
124 Prison Camp Rd, Statesville, NO 28625

MAIN CONTAINMENT BASIN:
■ i TOP: 230' LONG X 85' WIDE
9' TO 11' DEPTH WITH 2:1 SIDE SLOPES
r
APORATION BASINS:LONG X 25'WIDE
WITH 2:1 SIDE SLOPES
- iivr/irir l
V PUMP
rCA
A
"1
N
O
I r,
�4
cc
I@s
s
—.y,J r•Yl, ——�u-�UYA
r� s .n
is
-PO-D9'■ 7bp ''u D 8
Ground Concrete Settling Zone - 4 fl
Spillway from Evap Basin #1 to Evap Basin #2
Water Management Zone - 3 it
Maln Containment Basin
_ Evaporation Basin #1
- 8fi3.00 Freeboard 2 ft
!_
Width Varies +!- 5' 3.00 406 3" Conveyance Pump
-
863.0 867 / \ asp 853.00 654,00 5' Work Bench
• 50.00 s.00 _ .��
230-00
Section A -A
�NCDENR Application No.; Calculated By: J�
W00035749 D
� Cross Sectional View of DGS Drawn By: r r-
j'NCDOT Contract No.: C204163 Date:
LANE
Management System NorhingCnmparrs -.
:NCDOTTIP No., 1-381913, U-6039 i Checked By:
I I Date: Submitted To: NCDOT Resident Engineer
Statesville, Iredell County, NC Revision No.: 124 Prison Camp Rd, Statesville, NC 28625

MAIN CONTAINMENT BASIN:
TOP: 230' LONG X 85' WIDE
9' TO 1 V DEPTH WITH 2:1 SIDE SLOPES
i ioi a/ i i All i i i L
TWIN EVAPORATION BASINS:
TOP: 50' LONG X 25' WIDE
4' DEPTH WITH 2:1 SIDE SLOPES
s
°o
- ,;,i ::.,• — - — — .uu a >.
PUMP
i B ` MAIN CC�N1►►INMITASI�1
m
11
Lin
� r f
03 0
ao'v—•ya U0 \ — •u u 8
— 00
Evaporation Basin tit
863.00
866
50.00
NCDENR Application No.:
W00035749
NCDOT Contract No.: C204163
NCDOTTIpNo.: 1-381913, IY6039
Statesville, Iredell County, NC
Width Varies +/ 5'
866.00 r 1'-- 863.00
S
Main Containment Basin
. 854.80
Cross Sectional View of DGS
Management System
230.00
Section B-B
Calculated By:
Date:
Drawn By:
Date:
Checked By:
Date:
Revision No.:
\151111lII///
(1{ C A,?
SE
f F
PI
Freeboard 4 it
/ Water Management Zane- 3 ft
Ground Concrete settling Zone - 4 ft
F Wark Bench
855.00
LANE
`Har Ning Compares • -
Submitted To: NCDOT Resident Engineer
124 Prison Camp Rd, Statesville, NC 28625

NCDENR ApplTcation No.:
W00035749
NCDOT Contract No,; C204163
NCDOTTIP No.: 1-3819B, U-6039
Statesville, Iredell County, Ne
500' RADIUS FROM
CENTER OF DGS
MANAGEMENTSYSTEM
�y end
A eq
�., /I,
SEE SHEET 47 l0
SS P'SEE S
C I 1
PERMANENTDRY
DETENTION BASIN, NOT
ASSOCIATED WITH THE
- DGS SYSTEM
AS AN ADDED PRECAUTION, A
aERMAND SXT FENCE WILL BE
LmLgFD TO SEPA FATE THE
TWO SYSTEMS
NEAREST ROW LINE
�j4 C FROM EDGE OF MAIN
CONTAINMENT BASIN
NEAREST
JURISDICTIONAL STREAM
400' FROM EDGE OF MAIN
CONTAINMENT BASIN
BOUNDRY
465FROM EDGE OF MAIN
CONTAINMENT BASIN
P-MATCHUNE- SEE SHEET NO. 11
a cu ated By. `
Plan View Location Map with Date: LANE
Setbacks for DGS Drawn By: `~
Date: Management System -
Checked 6 "N<xldnq compares
r•
Date: NCDOT Resident Engineer
Revision No.: Submitted TO: 124 prison Camp Rd, Statesville, NC 28625

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ATTACHMENT C – Updated O&M Plan

OPERATION AND MAINTENANCE PLAN
N.C. Department of Transportation
Permit No. WQ0035749
DIAMOND GRINDING SLURRY &
HYDRODEMOLITION OPERATION SLURRY

I. Operational Functions
Hydrodemolition Operation Slurry Description and Overview
The hydrodemolition operation slurry (HOS) is generated by the hydrodemolition of concrete on
bridge decks during the deck restoration process. The hydrodemolition operation will typically
generate a range of volumes per bridge with percent solids of the unfiltered water ranging from 0.5 to
10 percent. The hydrodemolition operation will typically generate a range of approximately 10,000 to
50,000 gallons of HOS per bridge. The hydrodemolition process shall be managed, monitored,
collected, and properly disposed of as a portion of the bridge deck restoration process. Many
variables will determine the quantity, such as hydrodemolition contractor process, size of bridge
deck, total depth of concrete to be removed, etc. The generated water and solids (slurry) is stable and
contains a high calcium value for application as a lime amendment.
Diamond Grinding Slurry Description and Overview
The diamond grinding slurry (DGS) is generated by diamond grinding of concrete pavement which
generates a slurry material consisting of water and pulverized concrete. This material is collected in
trucks through a vacuum system concurrent with the grinding process. The generated slurry is stable
and also contains a high calcium value for application as a lime amendment. The diamond grinding
process shall be managed, monitored, collected, and properly disposed of. The diamond grinding of
concrete will generate a wide range of slurry volume per project. Many variables will determine the
quantity, such as contractor performing the diamond grinding, length of roadway, etc.
The HOS and DGS shall be collected, hauled, and discharged in accordance with local, state, and
federal regulations. The HOS and DGS will not be allowed to enter storm sewers, bridge drainage
downspouts or bridge approach downspouts, ditches, surface waters, floodplains or wetlands. The
HOS and DGS will be monitored to confirm its compliance with conditions in Non-Discharge Permit
No. WQ0035749 to include:
• Calcium Carbonate Equivalence (CCE)
• Percent Total Solids
• pH
Temporary storage of DGS/HOS shall conform the requirements of WQ0035749. Temporary mobile
storage units shall be water-tight tankers or tanks located on the project or in the adjacent vicinity. It
is the Contractor’s responsibility to obtain a permit modification for excavated/earthen DGS/HOS
storage facilities from NCDEQ prior to construction of the storage facility. These permitted storage
facilities will be located on NCDOT property adhering to the offsets and conditions stipulated in the
modification. The contractor shall grade and revegetate the site upon basin closure.
When land application of HOS is not a feasible option, the primary method of disposal will be to
transport the HOS to a local publicly owned treatment works (POTW) or a licensed treatment or
disposal facility. When land application of DGS is not a feasible option, other methods of disposal
will be determined such as transport of the liquid portion to a local publicly owned treatment works
(POTW) or a licensed treatment or disposal facility and disposal of the solid portion in an approved
solid waste disposal facility.

II. Maintenance Schedules
Maintenance will be the responsibility of the Contractor performing the hydrodemolition or diamond
grinding operations. In addition, subcontractors must have a current Land Application of Residuals
"Operator in Responsible Charge" (ORC) as certified by the North Carolina Water Pollution Control
System Operators Certification Commission (WPCSOCC).

III. Safety Measures
Safety plans and training will be the responsibility of the Contractor performing the hydrodemolition
or diamond grinding operations. All subcontractors will be required to comply with safety plans and
training as applicable to the Contractor's performing the hydrodemolition or diamond grinding
operations. NCDOT recognizes that the safety of employees and contractors is paramount to the
maintenance and construction of the state transportation system. Therefore, NCDOT recognizes no
boundaries in the development and implementation of a world class safety and health program that
will protect their employees, contractors and the traveling public. The NCDOT Safety Philosophy is
as follows:
• All accidents and injuries can be prevented.
• Management/supervisors are responsible, and will be held accountable, for preventing
injuries and occupational illnesses.
• Occupational safety and health is part of every employee's total job performance.
• Working safely is a condition of employment.
• All workplace hazards can be safeguarded.
• Training employees to work safely is essential and is the responsibility of
management/supervision.
• Prevention of personal injuries and accidents is good business.

IV. Spill Response Plan
Includes the following:
• Spill Control Plan (Attached, see Appendix VII),
• Spill Prevention Plan (Attached, see Appendix VII),
• Spill Control, Containment and Cleanup Plan (Attached, see Appendix VII).

V. Sampling and Monitoring Plan
All sampling and monitoring shall be performed in accordance with current Permit No. WQ0035749,
NCDOT Distribution and Land Application of Diamond Grinding Slurry and Hydrodemolition
Operation Slurry Distribution Class A Residuals Statewide
An analysis shall be conducted on HOS or DGS from each road construction project prior to the
initial land application event to include the following parameters:
• Calcium Carbonate Equivalence (CCE)
• Percent Total Solids
• pH*
*pH shall be sampled for each truckload to demonstrate that the HOS or DGS is non-hazardous
under the RCRA
Measurement of HOS/DGS pH shall be performed in accordance with the EPA Test Method 9040C.

ATTACHMENT D – DGS Laboratory Analysis
NCDA&CS Agronomic Division Phone: [phone] Website: www.ncagr.gov/Divisions/Agronomic-Services Report No. FY24-W003537
Waste And Compost Analysis Section
Advisor:
Farm: Not Provided
Client:
Sampled:
Received:
Completed:
Waste Report
Diagnostic Allison Summers
3929 Benson Rd
Garner, NC 27529
Wake County
PALS #: 551050 PALS #:
01/15/2024
01/22/2024
01/26/2024
Sample Information
Nitrogen (N) (mg/kg)P
295
pH
(Unitless)
12.34
DM
(%)
96.1
SS
(10 S/cm)
-
CCE
(%)
16.2
EC
(mS/cm)
-
ALE
(tons)
5.79
C:N
(Unitless)
4.70 : 1
Mo
-
Al
6010
Nutrient Measurements are given in units of milligrams per kilogram (mg/kg), unless otherwise specified.
Estimate of Nutrients Available for First Year (lb/ton)Other Results (lb/ton)
Application Method:
 Injection
 Irrigation
N
-
-
P2O5
-
-
K2O
-
-
Ca
-
-
Mg
-
-
S
-
-
Fe
-
-
Mn
-
-
Zn
-
-
Cu
-
-
Cl
-
-
Na
-
-
B
-
-
Mo
-
-
ID: DGS
Code: NSO
Description:
Non-composted solid,
Other
Grower Comments:
Diamond Grinding
K
3590
Ca
54400
Mg
2780
S
1160
Fe
8300
Mn
393
Zn
35.9
Cu
54.6
B
4.79
C
6670
Na
794
Al
-
-
BD
(lb/yd³)
-
-5
Cl
-Total N: 1420
Inorganic:
NH4-N
NO3-N
Other Results
Reprogramming of the laboratory-information-management system that makes this report possible is being funded
through a grant from the North Carolina Tobacco Trust Fund Commission.
Thank you for using agronomic services to manage nutrients and safeguard environmental quality.
- Steve Troxler, Commissioner of Agriculture.
NCDA&CS Agronomic Division Phone: [phone] Website: www.ncagr.gov/Divisions/Agronomic-Services Report No. FY24-W003537
Page 2 of 2Allison Summers Sampled: 01/15/2024 | Received: 01/22/2024 | Completed: 01/26/2024
Nutrient Measurements are reported in mg/kg or mg/L for samples analyzed as solids or liquids, respectively. Nitrogen and carbon results are measured on an as-received basis for
manures and manure-based composts and on a dry-weight basis for all other waste types. All other elements and calcium carbonate equivalent (CCE) are measured on a dry-weight
basis.
Conversion factor: Fertilizer grade (%) = mg/kg or mg/L ÷ 10,000
The Estimate of Nutrients Available for First Year are reported on an as-received (wet weight) basis for all elements in lb/ton or lb/1000 gal. The nitrogen estimate depends on the
manure type and application method that you specify on the submission form and accounts for the fact that only 40-60% of the manure nitrogen becomes available within one year of
application. All other elements and nitrogen from non-manure waste sources are reported as 100% available in the first year of application.
Conversion factors: lb/ton × 4.17 = lb/1000 gal.; lb/1000 gal. × 0.24 = lb/ton
Understanding the Waste Report
Additional information:
meq/L = milliequivalent per liter mS = millisiemens ppm = parts per million or mg/L or mg/kg S = siemens T = trace (<0.005 lb/unit)
NH4-N =Ammonium -N
Ni = Nickel
NO3-N =Nitrate -N
P = Phosphorus
Pb = Lead
S =Sulfur
Se = Selenium
SS = Soluble Salts
Zn = Zinc
EC = Electrical
Conductivity
Fe = Iron
K = Potassium
Mg = Magnesium
Mn = Manganese
Mo = Molybdenum
N = Nitrogen
Na = Sodium
Al = Aluminum
As = Arsenic
B = Boron
Ca = Calcium
Cd = Cadmium
Cl = Chloride
Cr = Chromium
Cu = Copper
DM% is the percent Dry Matter for semi-solid
and solid materials. DM% is used to convert
the dry-weight nutrient measurement
concentrations (mg/kg) back to wet-weight
concentrations of the original sample, as
reported in the estimate of nutrients available
for first year.
EC (Electrical Conductivity) measures
salinity, or soluble salts (SS).
pH measures alkalinity/acidity.
ALE is Agricultural Lime Equivalence. The ALE
indicates the amount of the material that provides
a liming effect equivalent to one ton of agricultural
grade limestone.
C:N ratio is the Carbon:Nitrogen ratio.
CCE is Calcium Carbonate Equivalent and is used
to determine ALE.
BD is Bulk Density in lb/yd³.
Understand Your Report