NC0089168_Draft Permit_20240820

3t� ���4,
ROY COOPER r_
Governor ' i;.
ELIZABETH S.BISER ...an*
Secretory �tr' I
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
August 20, 2024
Mr. Ron Kopplin
Martin Marietta Materials, Inc.
2235 Gateway Access Point Ste 400
Raleigh,NC 27607
Subject: Draft NPDES Permit Renewal
NPDES Permit NC0089168
Vanceboro Quarry
Beaufort County
Grade I Physical/Chemical WPCS
SIC Code 1422
Dear Mr. Kopplin:
Enclosed with this letter is a copy of the Draft NPDES permit renewal for your facility. Please
review this draft carefully to ensure thorough understanding of the requirements and conditions it
contains. There are several changes from the existing permit, including the following:
• Regulatory citations were added to the permit.
• The supplement to permit cover sheet (page 16) was updated to include the stream index
number and the HUC code.
• The facility classification,Grade I Physical Chemical Water Pollution Control System,was
added to the effluent and instream monitoring pages 3,4 and 5 [See Conditions A. (1.), A.
(2.), and A. (3.)].
• Parameter codes were added to the effluent and instream monitoring tables on pages 3, 4,
and 4 [See Conditions A. (1.), A. (2.), and A. (3.)].
• The monthly average limit of 1.0 mg/L for Total Iron was removed. The EPA approved
removal of Nort Carolina aquatic life standard for Iron and Manganese as part of 2007-
2016 Triennial review due to high natural occurrence in North Carolina surface waters.
• Instream Monitoring Requirements were reorganized into Condition A. (3.). This format
clarifies monitoring frequencies especially for Turbidity at each of the instream sampling
locations. Sampling Locations were assigned the following three-digit outfall numbers for
electronic reporting purposes:
U01 —Upstream near the intersection of Blounts Creek and Chuck Road.
DO 1 —Downstream after the convergence of the flows from the two outfalls in
Blounts Creek, from the access location off of Harper Road.
D02 —Downstream in Blounts Creek at the NC-33 bridge crossing.
D—� North Carolina Department of Environmental Quality I Division of Water Resources
./� S 12 North Salisbury Street I l6l 1 Mail Service Center I Raleigh.North Carolina 27699-161 l
o.,.w.,M 1.we+,+�W 0.ai\ 919.707.9000

• Electronic reporting of discharge monitoring reports (eDMR) was added as Condition A.
(4.).
• Permit conditions for the pumping operation and monitoring plan, best management
practices, chemical treatment, and benthic monitoring requirements were reorganized into
Section B —Special Conditions.
• The permit map was updated.
The NPDES standard conditions(Parts II,III, and IV)that areapart of the permit are not included
in this draft document (cover, map, and Part I). The conditions are the same as in your current
permit except that agency and division names have been updated. The latest version is available at
https://bit.ly/3k5NFaL and can be viewed online or downloaded as a PDF file.
Concurrent with this notification the Division is publishing a notice in a newspaper having
circulation in the general Beaufort County area, soliciting public comments on this draft permit.
Please provide any written comments you may have to the following: NCDEQ/DWR, NPDES
Permitting Branch, 1617 Mail Service Center,Raleigh,NC 27699-1617 no later than 30 days after
receipt of this draft permit.
Following the 30-day public comment period,the Division will review all pertinent comments and
take appropriate action prior to issuing a final permit. If you have questions concerning this draft
permit,please call me at(919) 707-3618 or by email at [e-mail].
Sincerely,
6t,:fAdL-Cvrj;A-ut4A------
Derek C. Denard, Environmental Program Consultant
Water Quality NPDES Permitting Section
Division of Water Resources,NCDEQ
cc: NPDES Files [Laserfiche]
Martin Marietta Materials,Inc./Ron Kopplin[[e-mail]]
Phillip N.Pressley,PE [[e-mail]]
Brian K.North,PE [[e-mail]]
Martin Stratte[[e-mail]]
Jay Nivens[[e-mail]]
Morgan Crutchfield [[e-mail]]
Steve Whitt[[e-mail]]
DWR WaRO/David May[[e-mail]];Robert Tankard[[e-mail]]
DWR WQPS/Doug Dowden[[e-mail]];Michael Montebello[[e-mail]]
WSS/Biological Assessment Branch/Eric Fleek[[e-mail]]
Wastewater Operator Certification Group [Jeff Talbott:[e-mail]]
EPA Region 4 [[e-mail]]
North Carolina bury Str ent of Eeviroail etal Quality Division of Water Resources
512 Notth Salisbury Street I161 l Mail Service Center I Raleigh.North Cazoliea 27699-161 l
919.707.9000

NPDES Permit NC0089168
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNI3R THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act,as amended,
Martin Marietta Materials, Inc.
is hereby authorized to discharge wastewater from a facility located at the
Vanceboro Quarry
Off of Welboum Road near Vanceboro
Weyerhaeuser Property
Beaufort County
to receiving waters designated as unnamed tributaries to Blounts Creek in the Tar-Pamlico River Basin
in accordance with the effluent limitations, monitoring requirements,and other applicable conditions set forth in
Parts I,II,III,and IV hereof
This permit shall become effective mmm dd,20yy.
This permit and authorization to discharge shall expire at midnight on November 30,2029.
Signed this day mmm dd,20yy.
DRAFT
Doug Dowden,Environmental Program Supervisor II
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 9

NPDES Permit NC0089168
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of
this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the
exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements,
terms, and provisions included herein.
Martin Marietta Materials, Inc.
is hereby authorized to:
1. Discharge mine dewatering and comingled stormwater from two (2)pit clarification ponds, each with an
approximate volume of 50 million gallons.
2. Discharge from said treatment works at the location specified on the attached map via Outfalls 001 and 002
into unnamed tributaries to Blounts Creek [Stream Index 29-9-1-(1)], currently classified C; Swamp, NSW
waters in the Tar-Pamlico River Basin [HUC: 030201040106].
Page 2 of 9

NPDES Permit NC0089168
PART I —MONITORING, CONTROLS,AND LIMITATIONS FOR PERMITTED DISCHARGES
SECTION A — PERMIT CONDITIONS
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade I Physical Chemical Water Pollution Control System [15A NCAC 08G .0306]
(a.) During the period beginning on the effective date of the permit and lasting until expiration, the permittee is
authorized to discharge mine dewatering and comingled stormwater from Outfall 001. Such discharges shall
be limited and monitored'by the permittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS
PARAMETER Monthly Daily Measurement Sample Sample
PmrrnnelerCock' Average Maximum Frequency Type Location
Flow(MGD)2 50050 6.0 MGD Continuous 2 Recording 2 Effluent
Total Suspended Solids(TSS)(mg/L) C0530 M&R M&R Monthly Grab Effluent
Total Iron(mg/L) 01045 M&R M&R Monthly Grab Effluent
Turbidity(NTU)3 00070 See Footnote 3 Monthly Grab Effluent
Settleable Solids(mL/L) 00545 0.1 ml/L 0.2 ml/L Monthly Grab Effluent
Total Nitrogen(TN)(mg/L) C0610 M&R M&R Monthly Grab Effluent
Total Phosphorus(TP)(mg/L) C0665 M&R M&R Monthly Grab Effluent
pH(su) 00400 5.5 <pH<8.5 (su)4 Monthly Grab Effluent
M&R=Monitor and Report
Footnotes:
1. The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application
system. See Special Condition A. (4.).
2. Flow Measurement: Total flow volume shall be recorded by a continuous flow measurement instrument.
Alternatively, pump curves and pump logs may be used as a means to calculate flow volume [15A NCAC
02B .0505].
3. Turbidity: The discharge shall not cause the turbidity of the receiving waters to exceed 50 NTU. If the
turbidity exceeds this level due to natural background conditions, the discharge level cannot cause any
increase in the turbidity in the receiving waters [15A NCAC 02B .0211]. See Condition A. (3.) for Instream
Monitoring Requirements for Turbidity.
4. pH: The narrative standard for swamp waters allows for lower pH than the typical range for class C waters
[6.0<pH<9.0(su)] due to natural conditions [15A NCAC 2B .0200].
Conditions:
(b.) There shall be no discharge of floating solids or visible foam in other than trace amounts [15A NCAC 02B
.0211].
Page 3 of 9

NPDES Permit NC0089168
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade I Physical Chemical Water Pollution Control System [15A NCAC 08G .0302]
(a.) During the period beginning on the effective date of the permit and lasting until expiration, the permittee is
authorized to discharge mine dewatering and comingled stormwater from Outfall 002. Such discharges shall
be limited and monitored' by the pennittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS
PARAMETER Monthly Daily Measurement Sample Sample
Parameter Code Average Maximum Frequency Type Location
Flow(MGD)2 50050 6.0 MGD Continuous 2 Recording 2 E
Total Suspended Solids(TSS)(mg/L) C0530 M&R M&R Monthly Grab E
Total Iron(mg/L) 01045 M&R M&R Monthly Grab E
Turbidity(NTU)3 00070 See Footnote 3 Monthly Grab E
Settleable Solids(mL/L) 00545 0.1 m1/L 0.2 ml/L Monthly Grab E
Total Nitrogen(TN)(mg/L) C0610 M&R M&R Monthly Grab E
Total Phosphorus(TP)(mg/L) C0665 M&R M&R Monthly Grab E
pH(su) 00400 5.5<pH<_ 8.5(su)4 Monthly Grab E
M&R=Monitor and Report
Footnotes:
1. The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application
system. See Special Condition A. (4.).
2. Flow Measurement: Total flow volume shall be recorded by a continuous flow measurement instrument.
Alternatively, pump curves and pump logs may be used as a means to calculate flow volume [15A NCAC
02B .0505].
3. Turbidity: The discharge shall not cause the turbidity of the receiving waters to exceed 50 NTU. If the
turbidity exceeds this level due to natural background conditions, the discharge level cannot cause any
increase in the turbidity in the receiving waters [15A NCAC 02B .0211]. See Condition A. (3.) for Instream
Monitoring Requirements for Turbidity.
4. p : The narrative standard for swamp waters allows for lower pH than the range 6.0 <pH < 9.0 (su) due to
natural conditions [15A NCAC 2B .0200].
Conditions:
(b.) There shall be no discharge of floating solids or visible foam in other than trace amounts [15A NCAC 02B
.0211].
Page 4 of 9

NPDES Permit NC0089168
A. (3.) INSTREAM MONITORING REQUIREMENTS
[15A NCAC 02B .0200 et seq.]
Grade I Physical Chemical Water Pollution Control System [15A NCAC 08G .0302]
Beginning on the effective date of this permit and lasting until the expiration date, the Permittee shall perform
instream sampling as specified below:
PARAMETER MONITORING REQUIREMENTS 1
Parameter code Measurement Frequency Sample Type Sample Location 2
Variable 4 Grab U01 4
Turbidity(NTU)3 00070 Monthly 5 Grab DO15
Monthly Grab D02
pH(su)6 00400 Monthly Grab DO1,DO2
Salinity(ppth) 00480 Monthly Grab DO1,D02
Temperature(°C) 00010 Monthly Grab DO1,D02
Footnotes:
1. The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application
system. See Special Condition A. (4.).
2. Sample Locations: U01 —Upstream near the intersection of Blounts Creek and Chuck Road
DO1 —Downstream after the convergence of the flows from the two outfalls in Blounts
Creek,from the access location off of Harper Road.
D02—Downstream in Blounts Creek at the NC-33 bridge crossing.
3. Turbidity: The discharge shall not cause the turbidity of the receiving waters to exceed 50 NTU. If the
turbidity exceeds this level due to natural background conditions, the discharge level cannot cause any
increase in the turbidity in the receiving waters. See Conditions A. (1.) and A. (2.) for Effluent Monitoring
Requirements for Turbidity [15A NCAC 02B .0211].
4. Turbidity Sample Location U01: Upstream turbidity monitoring shall not be required unless effluent turbidity
exceeds 50 NTU. If effluent turbidity exceeds 50 NTU, instream monitoring shall be conducted weekly
during the months of June,July, August, and September and monthly during the remaining months of the year
until effluent turbidity is less than 50 NTU.
5. Turbidity Sample Location Dl: If effluent turbidity exceeds 50 NTU, downstream Sample Location DO1
monitoring shall be conducted weekly during the months of June, July, August, and September until effluent
turbidity is less than 50 NTU. Once effluent turbidity is less than 50 NTU, monthly monitoring shall resume
for Sample Location DO1.
6. The narrative standard for pH: shall be between 6.0 and 9.0 except that swamp waters may have a pH as low
as 4.3 if it is the result of natural conditions [15A NCAC 2B .0200].
Page 5 of 9

NPDES Permit NC0089168
A. (4.) ELECTRONIC REPORTING - DISCHARGE MONITORING REPORTS
[G.S. 143-215.1 (b)]
Federal regulations require electronic submittal of all discharge monitoring reports(DMRs)and program reports.
The final NPDES Electronic Reporting Rule was adopted and became effective on December 21,2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this permit
(Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Renortine Requirements (Supersedes Section D. (2.)and Section E.(5.) (all
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report(eDMR)internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted
monthly electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data
and submit DMRs electronically using the internet. The eDMR system may be accessed at:
https://deq.nc.gov/aboutldivisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being
physically located in an area where less than 10 percent of the households have broadband access, then a
temporary waiver from the NPDES electronic reporting requirements may be granted and discharge
monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative forms approved by
the Director. Duplicate signed copies shall be submitted to the following address:
NC DEQ/Division of Water Resources/Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
See"How to Request a Waiver from Electronic Reporting"section below.
Monitoring results obtained during the previous month(s) shall be summarized for each month and reported
via the eDMR system no later than the last calendar day of the month following the completed reporting
period. Regardless of the submission method,the first DMR is due on the last day of the month following the
issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
Starting on December 21, 2025, the pennittee must electronically report the following compliance
monitoring data and reports,when applicable:
• Sewer Overflow/Bypass Event Reports;and
• Pretreatment Program Annual Reports; and
• Clean Water Act(CWA) Section 316(b)Annual Reports.
Page 6 of 9

NPDES Permit NC0089168
The permittee may seek an electronic reporting waiver from the Division (see "How to Request a Waiver
from Electronic Reporting"section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of each
electronic submission. The permittee should use the EPA's website resources to identify the initial recipient
for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity(EPA or
the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving
electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of
electronic submission and for each state. Instructions on how to access and use the appropriate electronic
reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at:
https://www.federalregister.gov/documents/2015/10/22/2015-24954/national-pol lutant-discharge-elimination-
system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the"Reporting Requirements"section above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic
reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division.
Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written
approval at least sixty (60) days prior to the date the facility would be required under this permit to begin
submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall
thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division
unless the permittee re-applies for and is granted a new temporary electronic reporting waiver by the Division.
Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting
waiver request may submit monitoring data and reports on paper to the Division for the period that the
approved reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on the
following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
4. Sianatory Requirements [Supplements Section B.(11.)(b)and Supersedes Section B.(11.)(d)l
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section
B. (11.)(a)or by a duly authorized representative of that person as described in Part II, Section B. (11.)(b). A
person,and not a position,must be delegated signatory authority for eDMR reporting purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account and
login credentials to access the eDMR system. For more information on North Carolina's eDMR system,
registering for eDMR and obtaining an eDMR user account,please visit the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the
following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE
ACCEPTED:
Page 7 of 9

NPDES Permit NC0089168
'7 certi y, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that quaked personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is, to the best of
my knowledge and belief true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fines and imprisonment for knowing violations."
5. Records Retention [Supplements Section D.(6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These
records or copies shall be maintained for a period of at least 3 years from the date of the report. This period
may be extended by request of the Director at any time[40 CFR 122.41].
SECTION B — SPECIAL CONDITIONS
B. (1.) PUMPING OPERATION AND MONITORING PLAN [G.S. 143-215.1(b)]
(a.) The permittee shall secure an approved pumping operation and monitoring(O&M) plan. The pumping O&M
plan shall include,but is not limited to,the following:
• A detailed site plan showing wetlands, ditches, well placements,pits, borrow areas, overburden storage,
stormwater controls/BMPs,vehicle maintenance areas,total drainage area, and access/haul roads,
• Groundwater monitoring strategies to demonstrate the effects of pumping,
• Detailed plans to maintain the surrounding hydrology that protects the affected streams and wetlands and
the respective monitoring to demonstrate compliance, and
• The pumping regime deemed necessary to protect affected streams and wetlands.
(b.) Approval of the pumping O&M Plan by the Division is required prior to the commencement of mining
operations. Submit three(3)copies of the Pumping O&M Plan to the following address:
NCDEQ/Division of Water Resources
NPDES Industrial Permitting Unit
1617 Mail Service Center
Raleigh,N.C. 27699-1617
B. (2.) BEST MANAGEMENT PRACTICES (BMPs) [G.S. 143-215.1(b)]
(a.) The permittee shall maintain stormwater BMPs for mine excavation and disturbance areas, and any other
areas associated with mining or vehicle maintenance activities. Appropriate BMPs should be used to divert,
infiltrate, reuse, or otherwise manage stormwater runoff in a manner that reduces pollutants in stormwater
discharges from each outfall. Any stormwater controls shall be regularly inspected.
(b.) BMPs shall include a preventative maintenance program,which shall ensure equipment used during mining
activities will be operated and maintained to prevent pollution of the surface water or groundwaters of the
state. Fuels, lubricants, coolants, hydraulic fluids, and other petroleum products shall not be discharged on
the ground or into surface waters. Spilled fluids shall be cleaned up to the maximum extent practicable and
properly disposed.
Page 8 of 9

NPDES Permit NC0089168
B. (3.) CHEMICAL TREATMENT [G.S. 143-215, 143-215.1]
Martin Marietta Materials, Inc. is prohibited from applying any form of chemical treatment to this discharge, or
using any chemicals in the crushed stone production process, unless pre-approved by written authorization from
the Division. Flocculants evaluated by the Division may be used if administered in accordance with maximum
application doses.
B. (4.) BENTHIC MONITORING REQUIREMENT
[15A NCAC 02B .0200 et seq., NCGS 143-215.3 (a)(2), and NCGS 143-215.66]
(a.) In order to evaluate the biological impact of this discharge, the permittee shall perform benthic sampling at
four locations. All results shall be submitted to the NPDES Unit at least six months prior to the expiration
date of this permit. The locations shall be the same as those previously sampled in April 2011 by CZR
Incorporated in support of the permittee's Section 401 application. They include the sites designated BC,
UT 1, UT2, and UT3. Please refer to "Aquatic Habitat Assessment of the Upper Headwaters of Blounts
Creek in the Vicinity of a Potential Quarry Site near Vanceboro,Beaufort County,NC"(August 2011).
(b.) Benthic sampling shall be performed by a laboratory certified for benthic assessments, using approved
sampling methods. All sampling procedures must be in accordance with the latest version of Standard
Operating Procedures for Collection and Analysis of Benthic Macroinvertebrates, by the Division of Water
Resources Environmental Sciences Section. Approval of a Benthic Sampling Plan by the Division is
required prior to commencement of benthic sampling. Submit the benthic sampling plan to the following
address:
North Carolina Division of Water Resources
Water Sciences Section/BAU
1621 Mail Service Center
Raleigh,N.C. 27699-1621
B. (5.) ADDITIONAL EFFLUENT MONITORING & APPLICATION
REQUIREMENTS [G.S. 143-215.1(b)]
Within one (1) year of commencement of discharge, the pennittee shall submit analyses for the compounds in
Tables A through C of NPDES Application EPA Form 2C (EPA Form 3015-2C). This form shall also be used
for NPDES permit renewal [40 CFR 122]. The permit may be reopened and modified if there are any
parameters detected at levels of concern. Submit results to the following address:
NCDEQ/Division of Water Resources
NPDES Industrial Permitting Unit
1617 Mail Service Center
Raleigh,N.C. 27699-1617
Or the analyses may be uploaded at: https://edocs.deq.nc.gov/Forms/NPDES WW-EDMR-Supplemental-Form
Page 9 of 9

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