NC0080071_Permit Issuance_20150205

NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
E. Renee Ipok
Town of Vanceboro
P. O. Box 306
Vanceboro, NC 28586
Dear Ms. Ipok :
Donald R. van der Vaart
Secretary
February 5, 2015
Subject: Issuance of NPDES Permit
Permit NCO080071
Vanceboro WTP
Craven County
Class I
Division personnel have reviewed and approved your application for renewal of the subject
permit. Accordingly, we are forwarding the attached NPDES permit. This permit is issued pursuant to
the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as
subsequently amended).
Summary of Changes in Final Permit from Existing Permit
1) Removed monthly average flow limit. Weekly monitoring to continue. Applied the 2009 Water
Treatment Plant Strategy which removes the flow limit. [See A.(1.)] .
2) Reduced monitoring for total chloride, total copper, total iron, and total zinc to quarterly to
coincide with chronic toxicity sampling. Edited chronic toxicity footnote. As action level
toxicity parameters of concern, these ,parameters are to be evaluated in conjunction with the
Whole Effluent Toxicity (WET) test. Note, this permit may be reopened and limits added for
these parameters if WET tests continue to demonstrate aquatic toxicity. [See A.(1.)]
3) Reduced monitoring for total manganese to quarterly to coincide with chronic toxicity
sampling. Edited chronic toxicity footnote. As a toxicity parameter of concern, monitoring 'in
conjunction with the quarterly toxicity test was implemented. [See A.(1.)]
4) Reduced monitoring for Total Nitrogen (TN) and Total Phosphorus (TP) to - semi-annual.
Removed reporting of Total Kjeldahl Nitrogen (continue to measure to determine TN),
Nitrite/Nitrate Nitrogen (continue to measure to determine. TN), and Total Nitrogen Load.
Removed Calculation of Total Nitrogen Loads special condition. Removed Total Monthly Flow
footnote. The 2012 Neuse River Basin Strategy reduced nutrient requirements from monthly to
semi-annual monitoring and reporting for TN and TP. [See A.(1.)]
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] Fax: [phone]
Internet: www.ncdenr.gov
An Equal Opportunity'Affirma6ve Action Employer

E. Rene Ipok
February 5, 2015
Page 2 of 3
5) Removed monitoring for total lead. There were no detected values in the effluent data and thus
no reasonable potential to violate Water Quality Standards so monitoring was not warranted.
[See A.(1.)]
6) Removed monitoring for temperature and dissolved oxygen. The Division concurred with the
Town's request to remove temperature and dissolved oxygen monitoring as the previous permit
cycle data did not shown any impacts. [See A.(1.)] .
7) Added monthly monitoring for turbidity. In accordance with 15A NCAC 2B regulations and per
the US EPA 2009 memo requiring turbidity monitoring for WTP permits, turbidity monitoring
was added to this permit. [See A.(1.)]
8) Added Discharge Alternatives Evaluation special condition. Whole Effluent Toxicity test
results submitted during the past three years have demonstrated that the Water Treatment
Plant's effluent is showing potential for causing aquatic toxicity in the receiving stream. As a
result, the Town of Vanceboro shall perform a Discharge Alternatives Evaluation as described
in Special Condition A. (3.) of this permit. This evaluation is being requested to determine
whether there are any economical and technologically feasible alternatives available to the
Town of Vanceboro to comply with all NC Water Quality Standards. The permittee will be
given approximately one permit cycle to evaluate and document possible treatment/discharge
alternatives to eliminate aquatic toxicity. The evaluation shall be submitted with the permittee's
next permit renewal application and will be carefully reviewed by the Division and the results
will be used in the development of a compliance schedule or possible variance request for the
Town of Vanceboro.
9) Added Electronic Reporting of Discharge Monitoring Reports special condition and footnote.
To meet future US EPA electronic reporting requirements, electronic reporting special
condition and footnote with a compliance date no later than 270 days from the final permit
effective date was implemented in this permit. [See A.(1.) and Special Condition A.(4.)]
10) Updated chronic toxicity special condition and Supplement to Permit Cover Sheet narratives.
Edits to address narrative changes were implemented in this permit. [See Supplement to Permit
Cover Sheet and Special Condition A. (2.)]
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty
(30) days. following receipt of this letter. This request must 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 (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless
such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division
may require modification or revocation and reissuance of the permit. This permit does not affect the
legal requirements to obtain other permits which may be required by the Division of Water Resources
or any other Federal, State, or Local governmental permits that may be required.

E. Rene Ipok
February 5, 2015
Page 3 of 3
If you have any questions concerning this permit, please contact Ron Berry at telephone
number [phone] or at email [e-mail].
Sincerely,
Zi e V
U cting Director, Division of Water Resources
Attachments
Cc: Washington Regional Office/Water Quality Programs
WSS/Aquatic Toxicology Branch/Susan Meadows (email)
Central Files
NPDES File

Permit NCO080071
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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, the
Town of Vanceboro
is hereby authorized to discharge wastewater from a facility located at the
Vanceboro WTP
923 Farm Life Avenue northeast of Vanceboro
Craven County
to receiving waters designated as an unnamed tributary to Mauls Swamp in the Neuse River Basin in
accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, and III hereof.
The permit shall become effective .................................. March 1, 2015.
This permit and the authorization to discharge shall expire at midnight on February 29, 2020.
Signed this day ...................... February 5, 2015.
Vy Zimmermng Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

Permit NC0080071
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.
Town of Vanceboro
is hereby authorized to:
1. Continue to operate a Water Treatment Plant with a discharge of backwash/rinse wastewater from
Sand Filters and Ion Exchange units. The water treatment plant has a design potable flowrate of
0.432 MGD and a maximum, monthly average wastewater discharge of 0.016 MGD.
This facility is located at the Vanceboro Water Treatment Plant at 923 Farm Life Avenue,
northeast of Vanceboro in Craven County.
2. Discharge at the location specified on the attached map into an unnamed tributary to Mauls Swamp,
classified C-Swamp NSW waters in the Neuse River Basin.
Page 2 of 7

Permit NCO080071
Part I
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
a. During the period beginning on the effective date of this permit and lasting until expiration; the
Permittee is authorized to discharge backwash/rinse wastewater from Dutfall 001. Such discharges
shall be limited and monitored 1 by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Fre ency
Sample
Type e
Sample
Location
Flow, MGD
Weekly
Estimated 2
Effluent
Total Suspended Solids
30.0 mg/L
45.0 mg/L
2/Month
Grab
Effluent
pH
Not les than 6.0 S.U. nor
eater than 9.0 S.U.
2/Month
Grab
Effluent
Total Residual Chlorine 3
17 µg/L
2/Month
Grab
Effluent
Salinity, ppt _
Monthly
Grab
Effluent
Conductivity, µmhos/cm
Monthly
Grab
Effluent
Total Dissolved Solids, mg/L
Monthly
Grab
Effluent
Ammonia as Nitrogen, mg/L
Monthly
Grab
Effluent
Turbidity, NTU
Monthly
Grab
Effluent
Total Chloride, mg/L 4
Quarterly
Grab
Effluent
Total Copper, µg/L4
Quarterly
Grab
Effluent
Total Iron, mg/L
Quarterly
Grab
Effluent
Total Manganese, mg/L
Quarterly
Grab
Effluent
Total Zinc, µg/L
Quarterly
Grab
Effluent
Chronic Toxicity4
Quarterly
Grab
Effluent
Total Nitrogen, mg/L 5
Monitor
& Report
Semi-annual
Grab
Effluent
Total Phosphorus, mg/L
Monitor & Report
Semi-annual
Grab
Effluent
Footnotes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge monitoring
reports electronically using NC DWR's eDMR application system. See Special Condition A.(4.).
2. Flow is estimated based on influent meter flow rates and duration of discharges events that occur
daily. Records shall be maintained and available for inspection indicating the flow rates and duration
of daily events used to calculate the reported flow.
3. Limit and monitor only if the facility adds chlorine or a chlorine derivative to water that is eventually
discharged. The Division shall consider all effluent TRC values reported below 50 µg/L to be
compliant with the permit. However, the Permittee shall continue to record and submit all values
reported by a North Carolina laboratory (including field certified), even if these values fall below 50
µlb -
4. Chronic toxicity (Ceriodaphnia dubia) @ 90% conducted in March, June, September, and December.
Sampling for total chloride, total copper, total iron, total manganese, and total zinc shall be conducted
in conjunction with toxicity testing. See Special Condition A. (2.).
5. For a given wastewater sample, TN = TKN + (NO2-N + NO3-N), where TN is Total Nitrogen, (NO2-
N + NO3 N) is Nitrite/Nitrate Nitrogen, and TKN is Total Kjeldahl Nitrogen.
b. All samples collected shall be from a representative discharge event.
c. There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 7

Permit NCO080071
A. (2) CHRONIC TOXICITY PASS/FAIL MONITORING (QUARTERLY)
[I 5A NCAC 02B .0200 et seq.]
The permittee shall conduct quarterly chronic toxicity tests using test procedures outlined in -the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or subsequent
versions.
The effluent concentration defined as treatment two in the procedure document is 90 %. The testing
shall be performed as a Ceriodaphnia dubia 7-day pass/fail test. The tests will be performed during the
months of March, June, September, and December. These months signify the first month of each
three month toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be
obtained during representative effluent discharge and shall be performed at the NPDES permitted final
effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month. in which it was performed, using the parameter code
TGP3B. Additionally, DWR Form AT-1 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30
days after the end of the reporting period for which the. report is made. .
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine
of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of
the waste stream.
Should there be no discharge of flow from the facility during -a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test
form indicating the facility name, permit number,.pipe number, county, and the month/year of the report
with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the
Water Sciences Section at the address cited above.
Should the. permittee fail to monitor during a month in which toxicity monitoring is required, then
monthly monitoring will begin immediately. Upon submission of a valid test, this monthly test
requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division
of Water Resources indicate potential impacts to the receiving stream, this permit may be re -opened and
modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls,
shall constitute an invalid test and will require immediate follow-up testing to be completed no later
than the last day of the month following the month of the initial monitoring.
Page 4 of 7

Permit NCO080071
A. (3) DISCHARGE ALTERNATIVES EVALUATION
[G. S. 143-215.3 (a)(2)]
The Permittee shall assess potential alternatives to eliminate Whole Effluent Toxicity (WET) test
failures. This evaluation shall assess the feasibility of all the following alternatives:
1. Connect discharge to a WWTP: Determine whether the wastewater can be discharged to a
wastewater treatment plant. Approval or disapproval from the plant operator
should be acquired.
2. Obtain a Non -discharge permit: Eliminate the surface water discharge by obtaining a non -
discharge permit for spray irrigation, infiltration, or subsurface disposal (on -site
drainfield, infiltration gallery, injection wells).
3. Install Wastewater Treatment: Install improved wastewater treatment to enable the facility
effluent to consistently pass the WET test. If this is not technically feasible or
cost prohibitive, please explain and provide estimated costs.
4. Use Alternative Water Treatment Source: Obtain drinking water from another source (nearest
County, City, or Town or other wells) so the discharge or toxicity problem is
eliminated.
5. Use Alternative Water Treatment Method: Install alternative and/or innovative water treatment
methods or operational improvements that do not produce toxic wastewaters.
For example, install a recycle iron/manganese filtration system with no
discharge or combine discharge with WWTP or cooling water effluents.
6. Discharge to a Larger_ waterbody/Perform a dilution model:,Relocate the facility's discharge to
a larger receiving waterbody to eliminate or reduce toxic impacts to the
receiving waterbody given the increased dilution. If applicable, perform a
dilution model to receive allowance for stream dilution in WET test.
7. Combination of Alternatives: Employ any combination of the alternatives listed above that would
result in eliminating or decreasing toxicity until a more feasible solution
becomes available.
The evaluation shall include a present value of costs analysis for all technologically feasible options as
outlined in the Division's "Engineering Alternatives Analysis Guidance Document." This Document can
be found at: http://portal.ncdenr.org/web/wq/swp/ps/npdes/permits.
This evaluation is being requested to determine whether there are any economical and technologically
feasible alternatives available to the Permittee. to address aquatic toxicity in the plant effluent. Based
upon the evaluation, please identify viable alternatives and present an implementation schedule and
project timeline for the preferred alternative. The Permittee shall submit the Discharge Alternatives
Evaluation to the Division along with the submission of their next permit renewal application (due 6
months prior to permit expiration on March 1, 2015) to:
NC DENR / Division of Water Resources / Water Quality Permitting
NPDES, Wastewater Branch
1617 Mail Service Center, Raleigh, NC 27699-1617
Page 5 of 7

Permit NCO080071
A. (4) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[G.S. 143-215.1(b)]
Proposed federal regulations require electronic submittal of all discharge monitoring reports (DMRs)
and specify that, if a state does not establish a system to receive such submittals, then permittees must
submit DMRs electronically to the Environmental Protection Agency (EPA). The Division anticipates
that these regulations will be adopted and is beginning implementation' in late 2013.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
• Section B. (11.)
• Section D. (2.)
• Section D. (6.)
• Section E. (5.)
Signatory Requirements
Reporting
Records Retention
Monitoring Reports
1. Reporting 1Suuersedes Section D. (2.) and Section E. (5.) (a)]
Beginning no later than 270 days from the effective date of this permit, the permittee shall begin
reporting 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 electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. Until such time that the state's
eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation
(CROMERR), permittees will be required- to submit all discharge monitoring data to the state
electronically using eDMR and will be required to complete the eDMR submission by printing,
signing, and submitting one signed original and a copy of the computer printed eDMR to the
following address:
NC DENR / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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
mailing address above.
Requests for temporary waivers from the NPDES electronic reporting requirements must be
submitted in writing to the Division for written approval at least sixty (60) days priorto the date the
facility would be required under this permit to begin using eDMR. Temporary waivers shall be valid
for twelve (12) months and shall thereupon expire. At such time, DMRs shall be submitted
electronically to the Division unless the permittee re -applies for and is granted a new temporary
waiver by the Division.
Information on eDMR and application for a temporary waiver from the NPDES electronic reporting
requirements is found on the following web page:
Page 6 of 7

Permit NCO080071
(Continued A. (4) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS)
http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr
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.
2. Signatory Requirements [Supplements Section B. (11.) (b) and supersedes Section B. (11.) Ml
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:
♦V
http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make
the following certification [40 CFR 122.221. NO OTHER STATEMENTS OF CERTIFICATION
WILL BE ACCEPTED:
"I certify, 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 qualified 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. "
3. Records Retention [Supplements Section D. (6.)l
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].
Page 7 of 7

co
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Vanceboro' Discharge
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NC 080071
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US 17
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SCALE: 1 in =24000 ft
USGS Quad: F30SW Vanceboro, NC
Outfall Facility
Latitude: 3 5' 18' 13.6" N 350 18' 15. P N
Longitude: 77' 8'51.1" W 770 8'50.3" W
Stream Class: C, Sw, NSW
North
Facility Location tY
Subbasin: 03-04-09 HUC: 03020202
Vanceboro WTP NC0080071
Receiving Stream: UT to Mauls Swamp
Craven County

DENR/DWR
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES PERMIT NC0080071
Facility Information
Applicant/Facility
Name:
Town of Vanceboro/Town of Vanceboro WTP
Applicant Address:
P. O. Box 306; Vanceboro, NC 28586
Facility Address:
923 Farm Life Ave; Vanceboro, NC 28586
Permitted Flow:
0.016 MGD highest monthly average
Type of Waste:
Backwash/rinse from sand filters & softeners
Facility/Permit Status:
Class I /Active; Renewal
County:
Craven Count
Miscellaneous
Receiving Stream:
UT to Mauls
Swam
Stream Classification:
C, Sw, NSW
Subbasin:
03-04-09
Index No.:
27-97-5.7
Drainage Area mi :
-
HUC:
03020202
Summer 7Q10 cfs :
0
303(d) Listed?:
No
Winter 7Q 10 cfs :
0
Regional Office:
Washington
30Q2 (cfs):
0
State Grid / USGS
Quad:
F30SW
Vanceboro, NC
Average Flow cfs :
0
Permit Writer:
Ron Berry
IWC % :
100%
Date: Corrected
1/28/15
BACKGROUND
The Town of Vanceboro operates a 0.432 MGD potable water facility which has intermittent
discharges of sand filter and softener backwash/rinse wastewater to an unnamed tributary to
Mauls Swamp, a class C, Sw, NSW water in the Neuse River Basin. The highest reported
monthly average flow is 0.016 MGD.
The Permittee requested removal of temperature and dissolved oxygen monitoring.
HISTORY
2008 — Renewal permit issued and applied the WTP Strategy:
Added monitoring for salinity, conductivity, TDS, temperature, DO, total copper, total
chloride, total manganese, total lead, total zinc, N113-N, and chronic toxicity. Added
monitoring and limit range for pH. Added limit for flow. Added conditional monitoring
for TRC. Removed requirements for settleable solids and turbidity. Continued
requirements for TSS and total iron.
- The Neuse River Basin nutrient strategy was continued. Updated Total Monthly Flow
footnote narrative.
PROCESS
Raw well water is aerated and collected in a surge tank as demand dictates. From the tank, water
is then pumped through a dual train pressure sand filter and water softener. As the treated well
water exits the plant chlorine is added before entering the drinking water distribution system. No
other chemicals are added. Filtered well water is used to intermittently backwash and rinse the
sand filters and water softeners and is discharged to the permitted outfall. A bulk salt solution
tank provides the regeneration salt solution to the softeners. There is one area storm drain
Fact Sheet
NPDES NC0080071
Page 1 of 4

connected to the permitted outfall that collects storm water from the grassy area adjacent to the
treatment building.
The operator initiates the backwash and rinse cycles based on treated water throughput, and
utilizes the influent flow meter to determine wastewater flows and to coordinate effluent
sampling.
COMPLIANCE
Since 2008 there were 3 limit violations and 27 reporting discrepancies such as missing data and
late DMRs. The missing data was resolved. There were no fines assessed.
DATA REVIEW
DMRs were reviewed for the period of March 2012 to April 2014. DMR data is summarized in
Table I below:
Table I: DMR Data Summ
Temperature, °C
15.1 to 22.8
Monitoring only
Conductivity, mobs/cm
493 to 56,500
Monitoring only
Total Dissolved Solids, m L
261 to 3.9,720
Monitoring only
Salinity, ppt
0.24 to 37.56
Monitoring only
DO, m
5.0 to 11.37
Monitoring only
NH3-N, m
> 0.04 to 0.25
Monitoring only
Total Manganese,
52 to 235
Monitoring only
TSS, m L
2.5 to 63.0
Monitoring with limits
H, S.U.
7.4 to 8.1
Monitoring with limits
Effluent Temperature and Dissolved Oxygen
There were no violations of Water Quality Standards as a C class receiving stream. See attached
appendix for DMR data.
Whole Effluent Toxicity
Quarterly chronic toxicity monitoring testing using Ceriodaphnia at 90% effluent concentration
was conducted. Additional tests were conducted as the result of failed test. Since June 2008 the
facility has passed 19 out of 25 toxicity tests performed with 2 failed tests occurring in the most
recent 4 quarters.
Nutrients
As a discharger into NSW water in the Neuse River Basin, the facility was required to sample
TN and TP, and submit calculated monthly and annual TN Loads. Table II summaries nutrient
data from March 2012 to April 2014:
Table II: Nutrient Summary
Parameter
Monthly Monitoring
TKN, m L
> 0.20 to 2.18
NO2-N + NO3-N, m L
0.10 to 0.25
TN, m
0.21 to 2.35
2012 Annual
2013 Annual
TN Load (Reported
0.11 to 1.25 lbs/mth
5.7 lbs/yr
11.4 lbs/yr
TP, m L
> 0.04 to 0.25
* Reported value calculated using TMF = monthly sum of reported weekly flow. The
calculated TMF only represents 20% of all monthly discharges.
Fact Sheet
NPDES NCO080071
Page 2 of 4

PERMITTING STRATEGY
Reasonable Potential Analysis (RPA)
The Division conducted EPA -recommended reasonable potential analysis for detected toxicants
of total chloride, total copper, total iron, and total zinc, based on DMR data from March 2012 to
April 2014.
Total chloride, total copper, total iron, and total zinc are action level parameters and as such are
also evaluated in conjunction with the toxicity history. Requirements for action level parameter
limits are initiated by the Aquatic Toxicology Branch (ATB) based on the toxicity results. In this
case, the RPA results show reasonable potential for the facility to discharge chloride, total
copper, total iron, and total zinc in excess of their water quality standard limits and the facility
has a past history of toxicity concerns. At this time, the special condition for a Discharge
Alternatives Evaluation is being added in lieu of any action level limits. Based on RPA guidance
total chloride, total copper, total iron, and total zinc sampling will be conducted at the same time
as the toxicity testing.
In addition, total manganese remains a toxicant of concern and will be monitored in conjunction
with the quarterly chronic toxicity test. There were no detected total lead levels so total lead
monitoring will be removed.
Neuse River Basin Nutrient Strategy
Per the current strategy, this facility is required to only monitor and report TN and TP semi-
annually. All other previous permit parameters and the special condition associated with the
requirements for TN Load monitoring and reporting are no longer required and will be removed.
Electronic DMR (eDMR) Compliance Special Condition
To facilitate US EPA guidance on meeting future eDMR reporting, a special condition outlining
Permittee's options, the web site for obtaining forms, and the compliance date 270 from the
effective date of this permit will be added. The Permittee may apply for a temporary waiver
request to comply with eDMR at least 60 days prior to the eDMR compliance date, and will be
granted a waiver if the Permittee meets the waiver criteria. If no waiver is applicable the
Permittee must begin submittal of DMR electronically 270 days after the permit effective date.
The Permittee will also be required to submit a signed printed copy of the monthly eDMR to the
Division to comply with current US EPA's Cross -Media Electronic Reporting Regulation. A
footnote will be added to A. (1) effluent page for reference to eDMR special condition.
Discharge Alternative Special Condition
As a result of this facility's chronic toxicity failure history, a special condition will be added
instructing the Permittee to assess potential alternatives to eliminate chronic toxicity failures and
submit a final report on this assessment with the next permit renewal application.
Other
Based on WTP strategy the monthly average flow limit will be removed, weekly
monitoring will continue.
Based on US EPA February 2009 memo, monthly effluent monitoring for turbidity will
be added.
Supplement to Permit Cover Sheet, chronic toxicity special condition, and flow footnote
narratives will be updated.
Fact Sheet
NPDES NC0080071
Page 3 of 4

The facility has completed one permit cycle with effluent temperature and dissolved
oxygen monitoring. No exceedance of water quality standards was noted. The Division
concurred with the Permittee request to remove monitoring.
SUMMARY OF PROPOSED CHANGES
In keeping with Division strategies the following will be incorporated into the permit:
o Removed monthly average limit for flow.
o Reduced monitoring for total chloride, total copper, total iron, total manganese, and total
zinc to quarterly to coincide with chronic toxicity testing.
o Reduced monitoring for TN and TP to semi-annual.
o Removed monitoring for total lead, temperature, and dissolved oxygen.
o Added monthly monitoring for turbidity.
o Removed reporting for TKN, Nitrite/Nitrate Nitrogen, and TN Load.
o Removed Calculation of TN Load special condition.
o Added Discharge Alternatives Evaluation special condition.
o Added Electronic Reporting of DMRs special condition and footnote.
o Updated Supplement to Cover Sheet, chronic toxicity special condition, and flow
footnote narratives.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: July 2, 2014
Permit Scheduled to Issue: February 2015
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please
contact Ron erry at (919) 7-6396 or email ron.berr/[e-mail]/v.
NAME: DATE: i J K) ^ L J
REGIONAL OFFICE COMMENTS
SUPERVISOR: DATE:
Fact Sheet
NPDES NCO080071
Page 4 of 4

AFFIDAVIT OF PUBLICATION
STATE OF NORTH CAROLINA
COUNTY OF WAKE
Advertiser Name: DEPARTMENT OF WATER RESOURCES
Address: 1617 MAIL SERVICE CENTER PROTECTION SECTIOP
RALEIGH, NC 276991617
Before the undersigned, a Notary Public of Wake
County North Carolina, duly commissioned and
authorized to administer oaths, affirmations, etc.,
personally appeared DEBORAH MAHAFFEY, who
being duly sworn or affirmed, according to law, cloth
depose and say that he or she is Accounts
Receivable Specialist of The News & Observer
Publishing Company a corporation organized and
doing business under the Laws of the State of
North Carolina, and publishing a newspaper known
as The News & Observer, in the City of Raleigh,
Wake County and State aforesaid, the said
newspaper in which such notice, paper, document,
or legal advertisement was published was, at the
time of each and every such publication, a
newspaper meeting all of the requirements and
qualifications of Section 1-597 of the General
Statutes of North Carolina and was a qualified
newspaper within the meaning of Section 1-597 of
the General Statutes of North Carolina, and that as
such he or she makes this affidavit; and is familiar
with the books, files and business of said
corporation and by reference to the files of said
publication the attached advertisement for
DEPARTMENT OF WATER RESOURCES was
inserted in the aforesaid newspaper on dates as
follows:
07/03/2014
L�dilei,4
DEBORAH MAHAFFEY, Accounts Rec a Specialist
Wake County, North Carolina
Ad Number
0001129338
Public Notice
North Camlino Environmental
Management Comm is$IoaMPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notice of Intent to Issue a NPDES
Wastewater Permit
Sworn to and subscribed before me
This 3rd day of July, 2014
My Commission Expires:
r
Notary Signature

Temperature
°C
15.1
to
22.8
Conductivity
mhos/cm
493
to
56500
Salinily
ppt
0.24
to
37.56
DO
mg/L
5
to
11.37
Lead
99/L
All rdgs less
than 5 pg/L
TDS
mg/L
261
to
39720
TRC
99/L
No Rdgs as no chlorinated water used
TN Load
Ibs/mon
REPORTED
0.11
to
0.9
ACTUAL
0.54
to
4.34
REPORTED
ANNUAL
2012
5.7 Ibs/yr
REPORTED
ANNUAL
2013
11.4 Ibs/yr
TP
mg/L
(Monthly)
> 0.04
to
0.58
NH,4-N
mg/L
> 0.04
to
0.25
TMF = reported weekly flow
TMF = estimated 5.5 discharges per week (0.
(estimated actual =18.5 Ibs/yr)
(estmated actual = 57.2 Ibs/yr)

Vanceboro WTP 2014 Freshwater RPA - 95% Probability/95% Confidence Outfall 001
NCO080071 MAXIMUM DATA POINTS = 58 Qw = 0.016 MGD
Qw (MGD) = 0.016
1 Q I OS (cfs) = 0.00
7Q t OS (cfs) = 0.00
7Q I OW (cfs) = 0.00
30Q2 (cfs) = 0.00
Avg. Stream Flow, QA (cfs) = 0.00
Receiving Stream: UT
WWTP/WTP Class:
IWC a 1 Q 10S = 100.00000%
IWC cQ 7Q 10S = 100.00000%
IWC @ 7Q I OW = 100.00000%
IWC Q 30Q2 = 100.00000%
IWC ® QA = 100.00000%
Stream Class: C, Sw, NSW
PARAMETER
STANDARDS & CRITERIA (2)
N
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
(1)
NC WQS / Applied '/2 FAV /
a
z
n # Det. Max Pred Allowable Cw
Chronic Standard Acute
Cw
Acute: NO WQS
Chlorides (AL)
NC
230 FW
mg/L
26 26
13,172
_ _ _______ ___
___-_-_-_-_-_-_-_-_-_-_-_-_
Chronic: 230
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
16 values > Allowable Cw
Monitoring In conjunction with TOX Test
Acute: 7.3
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Copper (AL)
NC
7 FW 7.3
ug/L
26 6
124.8
- _ _ _ - _ - _ - _ _ -
Monitoring In conjunction with TOX Test
_
Chronic: 7 0
- _ _ _ -
RP for AL(Cu,Zn,Ag,I=e,CI) - apply Quarterly
6 values > Allowable Cw
Monitoring In conjunction with TOX Test
Acute: 33.8
no detects
Lead
NC
25 FW 33.8
ug/L
0 0
NIA
-_ _ _-_-_-_ _-_
Chronic: 25.0
_-_ _-_-_-_-_-_-_-_-_-_-__
no detects
Acute: 67.0
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Zinc (AL)
NC
50 FW 67
ug/L
26 17
146.0
Monitoring In conjunction with TOX Test
- _ _ _ - _ - _ - _ _ - _
Chronic: 5 0. 0
-
RP for AL(Cu,Zn,Ag,Fe,CI) --a p- p—1 y Quarterly
1 values > Allowable Cw
Monitoring In conjunction with TOX Test
Acute: NO WQS
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Iron (AL)
NC
I FW
mg/L
26 26
28.35600
- _ _ _ - _ -
Monitoring In conjunction with TOX Test
Chronic: 1.00000
- _ - _ _
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
25 value(s) > Allowable Cw
Monitoring In conjunction with TOX Test
9595 FRESHWATER RPA2014_3.xlsm, rpa
Page 1 of 1 &11/2014

REASONABLE POTENTIAL ANALYSIS
5
Chlorides (AL)
Date Data
BDL=112DL
Results
1
3/8/2012
945
945
Std Dev.
2
4/5/2012
310
310
Mean
3
5/3/2012
870
870
C.V.
4
6172012
426
426
n
5
7152012
487
487
6
8/9/2012
558
558
Mull Factor=
7
9/62012
457
457
Max. Value
8
10/4/2012
54
54
Max. Pred Cw
9
11/92012
7492
7492
10
12/6/2012
57
57
11
1/102013
T748
7748
12
2/7/2013
80
80
13
3/7/2013
139
139
14
4/4/2013
309
309
15
519/2013
232
232
16
6/6/2013
475
475
17
72/2013
153
153
18
8/8/2D13
126
126
19
W2013
600
600
20
10rs/2013
262
262
21
11/72013
204
204
22
12/6/2013
71
71
23
1/102014
1975
1975
24
2172014
10
10
25
3772014
1230
1230
26
402014
124
124
Ilsa'PA9TE SPELIA4 9
Values aye COPY'
Maximum a b polMs
58
976.7
2.0518
26
1.7
7748.0 mg/L
13,171.6 mg/L
Copper (AL)
Date
Data
BDL=1/2DL
Results
3WO12
<
10
5
Std Dev.
4/52012
<
10
5
Mean
5/32012
<
10
5
C.V.
6772012
it
11
n
7/52012
11
11
8/9/2012
<
10
5
Mutt Factor =
9/62012
13
13
Max. Value
10/4/2012
<
10
5
Max. Pred Cw
1119/2012
33
33
1ZVM12
<
10
5
1/3/2013
26
26
2772013
<
10
5
W72013
<
10
5
4142013
<
10
5
5/92013
<
10
5
6/6/2013
80
80
722013
<
10
5
OW013
<
10
5
9/6/2013
<
10
5
10r"13
<
10
5
11/72013
<
10
5
12/5/2013
<
10
5
1/102014
<
10
5
2172014
<
10
5
3/72014
<
10
5
4/3/2014
<
10
5
10.5385
1.4929
26
1.56
80.0 ug/L
124.8 ug/L
9595 FRESHWATER RPA2014_3.xlsm, data
2- 6/11/2014

REASONABLE POTENTIAL ANALYSIS
18
Zinc (AL)
❑»'PASTE SPECIA
V.me:• t"n-covr-'
19
Iron (AL)
M.[ITYm 4a Palma
�58
Date
Data
BDL-112DL
Results
_::..:_. _. ,I,
Data Data
BDL=1/2DL
Results
1
3/8/2012
14
14
Sttl Dev.
19.6519
1
3182012
4.134
4.134
Std Dev.
3.7513
2
4/5/2012
<
10
5
Mean
17.0385
2
4/52012
2.6
2.6
Mean
3.9913
3
502012
11
11
C.V.
1.1534
3
SWO12
2.011
2.011
C.V.
0.9399
4
6772012
13
13
n
26
4
6/72012
2.799
2.799
n
26
5
7/5/2012
12
12
5
7152012
3.706
3.706
6
8/92012
<
10
5
Mult Factor=
1.46
6
8/92012
1.686
1.686
Mult Factor=
1.39
7
9/6/2012
<
10
5
Max. Value
100.0 ug/L
7
9162012
5.73
5.73
Max. Value
20.400000 mg/L
B
10/42012
<
10
5
Max. Fred Cw
146.0 ug/L
8
10/42012
4.262
4.262
Max. Pred Cw
28.356000 mg/L
9
11/92012
100
100
9
11MI2012
5.455
5.456
10
12/62012
<
10
5
10
12/6/2012
5.89
5.89
11
1WO13
35
35
11
1/10/2013
20.4
20.4
12
2/72013
24
24
12
2772013
1.36
1.35
13
3172013
11
11
13
3/72013
1.471
1.471
14
4/42013
17
17
14
4/42013
3.55
3.55
15
5/9/2013
c
10
5
15
5/9/2013
1.991
1.991
16
6/62013
15
15
16
6/6/2013
2.935
2.935
17
722013
<
10
5
17
722013
4.055
4.055
18
B/812013
<
10
5
18
8/8/2013
2.744
2.744
19
91WO13
18
18
19
9/6/2013
4.1
4.1
20
10/372013
c
10
5
20
10/3/2013
2.102
2.102
21
11/72013
13
13
21
11772013
2.697
2.697
22
12/52013
23
23
22
12/52013
1.911
1.911
23
1/10/2014
22
22
23
i/102014
5.86
5.86
24
277/2014
46
46
24
2772014
0.107
0.107
25
377/2014
11
11
25
3/72014
7.365
7.365
26
4/3/2014
13
13
26
4WO14
2.864
2.864
27
27
9595 FRESHWATER RPA2014_3.xlsm. data
-3- 6/112014

Berry, Ron
From: Renee (pock [[e-mail]]
Sent: Wednesday, June 11, 2014 10:00 AM
To: Berry, Ron
Subject: RE: Update on renewal of NPDES Permit NCO080071 - Town of Vanceboro WTP
Mr. Berry —
I would like to request that temperature and dissolved oxygen monitoring be removed from permit requirements for
NC0080071. Thank you for your assistance.
. ` 9-n 'rock
z o" rferk
Town of Vanceboro
P.O. Box 306
Vanceboro, NC 28586
252.244.0919
From: Berry, Ron [mailto:ron.berryCa-)ncdenr.gov]
Sent: Wednesday, June 11, 2014 9:12 AM
To: Renee Ipock
Subject: Update on renewal of NPDES Permit NCO080071- Town of Vanceboro WTP
Ms. Ipok,
I have begun the renewal process for NCO080071 and wanted to advise you that as part of this permit renewal,
temperature and dissolved oxygen monitoring are eligible for removing from this permit if requested by the Permittee.
You can submit as request by responding to this email.
Sincerely,
Ron Berry, Engineer
Division of Water Resources/NCDENR
Phone: (919) 807 - 6396
Email: [e-mail]
Location Address - Archdale Building, Office 925Y
512 N. Salibury St.
Raleigh, NC 27699
Mailing Address - Archdale Building, NCDENR/DWR
1617 Mail Service Center
Raleigh, NC 27669-1617

Group 2 Permits: 1 /Qtr - 1 /Year (2013)
TN PERMIT LANGUAGE FOR INDIVIDUAL PERMITS
NEUSE RIVER BASIN
( Permit Writers -
Refer to 'base' and 'suppl' worksheets for nutrient moniioring
requirements for each discharger. j
Legend
Values to be added (facility -specific)
xx.yy.zz Available options (facility -specific)
Comments to permit writers (to be deleted)
text text Typical existing permit text
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
a. During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee shall be authorized to discharge from Outfall 001 subject to the following effluent
limitations and monitoring requirements:
EFFLUENT
CHARACTERISTICS
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location I'I
Flow (MGD)
Continuous
Recording
I or E
TN (mg/L) R>
Monitor & Report
1/Qtr-1/yr
Comp.Grab
E
Total Phosphorus
Monitor & Report
1/Qtr-l/yr
Comp.Grab
E
Footnotes:
(I) Sample Location: I - Influent, E - Effluent.
(2) For a given wastewater sample, TN = TKN + NO3-N + NO:-N, where TN is Total Nitrogen, TKN is Total Kjeldahl
Nitrogen, and NO3-N and NOrN are Nitrate and Nitrite Nitrogen, respectively.
b. There shall be no discharge of floating solids or visible foam in other than trace amounts.
None required:
TN PERMIT LANGUAGE FOR INDIVIDUAL PERMIT FACT SHEETS
NEUSE RIVER BASIN
4/18/2013 11:10:00 AM

Alderman Richard Bowers
Mayor Chad E. Braxton Alderman Chris Hudson
Alderman Dennis Smith
Town Clerk E. Renee 1pock0 Alderman Billy Whitford
Alderman Earl Wright
Jeun of `Uan" wus
J.O.:13ox 3V6, ` ancebaw, ✓Ve28586
rYfimw. 252/244-11919 9ax: 2521244-1387
November 6, 2012
Mr. Ron Berry, Engineer I
NCDENR/DWQ/Point Source/NPDES Complex Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: NPDES Permit #NC0080071 Renewal
Dear Mr. Berry:
The Town of Vanceboro respectfully submits NPDES Application for Permit Renewal — Short
Form C - WTP for NPDES Permit #NC0080071. Please do not hesitate to contact me if you need
additional information, or have any questions.
Sincerely,
E. Renee (pock
Town Clerk
Enclosures

Plant d�s15neA to FIoO 3ooGPM