NC0083321_Permit (Issuance)_20141212

NPDES DOCIMENT SCANNING COVER SHEET
NC0083321
ONWASA - Hubert WTP
NPDES Permit:
Document Type
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
December 12, 2014
This document is printed on reuse paper - ignore any
content on the "ew-erse side

AVA
DENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
6,\vaC Y°ke-r December 12, 2014
Jam utler, P. E., Engineering Director
nslow Water and Sewer Authority
228 Georgetown Road
Jacksonville, North Carolina 28540
Dear Mr. Butler:
John E. Skvarla, III
Secretary
Subject: Issuance of NPDES Permit Renewal
Permit No. NC0083321
Hubert WTP
Onslow County
PC-1
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge 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).
Please note that the receiving stream is listed as an impaired waterbody on the 2014 North Carolina
Integrated Report for loss of Shellfish Harvesting. Addressing impaired waters is a high priority
with the Division, and instream data will continue to be evaluated. If there is noncompliance with
permitted effluent limits and stream impairment can be attributed to your facility, then mitigative
measures may be required.
The following items are in response to the comment letter received from ONWASA on
November 12, 2014.
• As requested, the sample type for Salinity, Conductivity, and Total Dissolved .Solids was
changed to a grab sample.
• For Ion Exchange WTP's, Total Suspended Solids collected at the effluent is expected to
be a composite sample. TSS will remain as a composite sample type in the permit.
• The footnote for Total Residual Chlorine has been revised and the first sentence states:
"The limit and monitoring requirements only apply if the facility adds chlorine or
chlorine derivatives to waters that are eventually discharged."
Monitoring is not requiredif chlorine residuals are not contained in the wastewaters.
• In Jan. 2014 the Hubert WTP reported one ammonia -nitrogen sample at 2.7 mg/L. All
other samples for the previous three years were less than 1 mg/L. The Division concurs
with your request and the ammonia -nitrogen monitoring requirement was removed in the
final permit. Please be aware that North Carolina will be evaluating the adoption of
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Phone: [phone] Internet: www.ncwaterquality.org
An Equal opportunity 1 Affirmative Action Employer — Made in part by recycled paper

Mr. James R. Butler, P. E., Engineering Director
December 12, 2014
Page 2 of 3
EPA's 2013 Ammonia criteria (chronic limitation of 1.9 mg/L) during the next Triennial
Review.
As identified previously, the renewal permit contains the following significant changes
from your current permit:
• No later than 270 days from the effective date of this permit, the Onslow Water and Sewer
Authority shall begin reporting discharge monitoring data electronically using the NC DWR's
Electronic Discharge Monitoring Report (eDMR) internet application. [See Special Condition
A.(4.)]
For information on eDMR, registering for eDMR and obtaining an eDMR user account, please
visit the following web page: http://portal.ncdenr.org/web/wq/adminlbog/ipu/edmr.
For information on EPA's proposed NPDES Electronic Reporting Rule, please visit the
following web site: http://www2.epa.gov/compliance/proposed-npdes-electronic-reporting-rule.
• A footnote was added to the limit for TRC such that the Division shall consider all effluent TRC
values reported below 50 µg/L to be in compliance with the permit. See footnote #3 under
Section A.(1.).
• In accordance with Division guidelines for Water Treatment Plants, the flow limitation was
removed.
• In accordance with Division guidelines for Water Treatment Plants discharging a maximum,
monthly average flow of less than 0.500 MGD, monitoring for flow, temperature, salinity,
chloride, pH, conductivity, dissolved oxygen, total dissolved solids, total suspended solids, and
total residual chlorine was reduced.
• Monitoring for fluoride, iron and manganese was removed since there are no saltwater water
quality standards for these parameters.
• In accordance with Administrative Code 15A NCAC 2B .0500 monitoring for total phosphorus
and total nitrogen was reduced to quarterly and pH instream monitoring was removed.
• In accordance with Division guidelines for Water Treatment Plants, temperature and dissolved
oxygen instream monitoring were removed in the permit renewal since instream sampling for
these parameters did not show an impact to the receiving stream.
• Effluent lead data from Jan. 2011 through March 2014 was reported at less than detection levels.
With no reasonable potential to violate state water quality standards, lead monitoring was
removed from the permit.
• A Reasonable Potential Analysis was performed on the effluent data and total copper and total
zinc showed reasonable potential to violate state water quality standards. Copper and zinc
monitoring will remain in the permit. In accordance with Division guidelines for Water
Treatment Plants, monitoring requirements for total copper and total zinc were changed to
quarterly and should be performed in conjunction with toxicity testing.
• Turbidity monitoring has been added in accordance with Administrative Code 15A NCAC 2B.
.0500 and as requested by EPA.
• 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, ONWSA shall perform a Discharge Alternatives Evaluation as

Mr. James R. Butler, P. E., Engineering Director
December 12, 2014
Page 3 of 3
described in Section A. (3.) of this permit. This evaluation is being requested to determine
whether there are any economical and technologically feasible alternatives available to ONWSA
to comply with NC Water Quality Standards. ONWSA 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 ONWSA'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. See special condition A.(3.).
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..
If you have any questions concerning this permit, please contact Julie Grzyb by email
([e-mail]) or phone at [phone].
Sincerely,
CtfAlt4L—
efitt Thomas A. Reeder, Director
Division of Water Resources, NCDENR
Enclosure: NPDES Permit NC0083321
cc: NPDES Unit
Central Files
Wilmington Regional Office / Surface Water Protection Section
e-copy:
Shannon Jenkins, Division of Marine Fisheries
Susan Meadows, Aquatic Toxicity Branch

Permit No. NC0083321
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
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,
Onslow Water and Sewer Authority
is hereby authorized to discharge wastewater from a facility located at the
Hubert Water Treatment Plant
374 Hubert Boulevard
(NCSR 1428/NCSR 1744)
Hubert, NC 28539
Onslow County
to receiving waters designated as Queen Creek in the White Oak River Basin
in accordance with effluent limitations, monitoring requirements, and other applicable
conditions set forth in Parts I, II, and III.
This permit shall become effective February 1, 2015.
This permit and authorization to discharge shall expire at midnight on January 31, 2020.
Signed this day December 12, 2014.
0Thomas A. Reeder, Director
6iff Division of Water Resources
By Authority of the Environmental Management Commission
Part I, Page 1 of 8

Permit No. NC0083321
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked, and
as of this 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.
Onslow Water and Sewer Authority is hereby authorized to:
is hereby authorized to:
1. Continue to operate a water treatment facility with a discharge of backwash wastewater from
greensand and carbon filtration and reject wastewater from' ion exchange units. This water
treatment plant currently has a design potable flow rate of 6 MGD and a maximum, monthly
average discharge of approximately 0.30 MGD. It includes the following components:
> Four lined lagoons
> Effluent pumps.
This facility is located in Hubert at the Hubert WTP at 374 Hubert Boulevard (NCSR 1428/NCSR
1744) in Onslow County.
2. Discharge from said treatment works at the location specified on the attached map into Queen
Creek, classified SA-HQW waters in the White Oak River Basin.
Part I, Page 2 of 8

Permit No. NC0083321
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
During the period beginning on the effective date of this permit and lasting until expiration,
the permittee is authorized to discharge from outfall 001. Such discharges shall be limited
and monitored1 by the permittee as specified below:
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Locatioh 2
Flow
2/Month
Instantaneous
Effluent
Total Dissolved Solids
2/Month
Grab
Effluent
Total Suspended Solids
10.0 mg/L
15.0 mg/L
2/Month
Composite
Effluent
Total Residual Chlorine 315
13 pglL
2/Month
Grab
Effluent
pH 4
Monthly
Grab
Effluent
Temperature
Monthly
Grab
Effluent
Dissolved Oxygen
Monthly
Grab
Effluent
Salinity •
Monthly
Grab
E, U. D
Conductivity
Monthly
Grab
E, U. D
Turbidity
Monthly
Grab
Effluent
Chloride
Monthly
Composite
Effluent
Total Copper 5
Quarterly
Composite
Effluent
Total Zinc 5
Quarterly
Composite
Effluent
Total Nitrogen (TN) 6
Quarterly
Composite
Effluent
Total Phosphorus (TP)
Quarterly
Composite
Effluent
Whole Effluent Toxicity 7
Monitor and Report
Quarterly
Composite
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. E = Effluent, U = Upstream at the crossing of road 1744, D = Downstream at the far side of highway 24.
3. The limit and monitoring requirements only apply if the facility adds chlorine or chlorine derivatives
to waters that are eventually discharged. The Division shall consider all effluent TRC values reported
below 50 µg/L to be in compliance with this permit. The permittee shall continue to record and
submit all values reported by a North Carolina certified laboratory even if these values fall below 50
µg/L.
4. The pH shall not be less than 6.8 standard units nor greater than 8.5 standard units.
5. Sample in conjunction with acute toxicity testing.
6. TN is Total Nitrogen, which is TKN + (NO3-N + NO2-N) where TKN is Total Kjeldahl Nitrogen, NO3-N
and NO2-N are Nitrate and Nitrite Nitrogen, respectively.
7. Acute 24-hour Pass/ Fail Monitoring: March, June, September and December. Permittee shall use
mysid shrimp as the test organism unless another organism of equal or greater sensitivity is deemed
more appropriate based on the characteristics of the discharge and receiving streams. See special
condition A (2).
There shall be no discharge of floating solids or foam visible in other than trace amounts
Part I, Page 3 of 8

Permit No. NC0083321
A. (2.) ACUTE TOXICITY MONITORING (QUARTERLY)
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the
North Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute
Toxicity In A Single Effluent Concentration" (Revised -December 2010 or subsequent versions). The
monitoring shall be performed as a Mysid Shrimp (Mysidopsis bahia) 24 hour static test. The effluent
concentration at which there may be at no time significant acute mortality is 90% (defined as
treatment two in the procedure document). 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 TGE3E. Additionally, DWR Form AT-2 (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 either these monitoring requirements 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 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.
Part I, Page 4 of 8

Permit No. NC0083321
USE OF A DIFFERENT TEST ORGANISM
The permittee may request the use of a different test organism upon documentation that the alternate
test organism would provide an equal or greater level of protection and is appropriate based on the
characteristics of the discharge and receiving stream. Such documentation would consist of one of the
following:
1. Three consecutive "side -by -side' tests with results indicating that the alternate test organism is
as or more sensitive to the facility's effluent. Each test series would.consist of two separate
toxicity tests conducted on the same sample of effluent with the length of the exposure
specified by the permit, the only difference between the tests being the organism used.
2. An alternate plan developed by the permittee and approved by the Aquatic Toxicology Unit
that demonstrates an equal level of protection is offered by the test organism.
It must also be demonstrated that viable and standardized culture techniques are available for that
organism and standardized testing methodologies have been developed and validated. This
demonstration should meet guidance provided by EPA in Section 6 of EPA-821-R-02-012, Short Term
Methods for Estimating the Acute Toxicity of Effluents and Receiving Waters to Freshwater
Organisms, Fifth Edition, 2002. Requests to use a different test organism and supporting
documentation should be sent to NC DWR, WSS at the address listed above.
A. (3.) DISCHARGE ALTERNATIVES EVALUATION:
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 thedischarge 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.
Part I, Page 5 of 8

Permit No. NC0083321
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) to:
NC DENR / Division of Water Resources / Water Quality Permitting
NPDES, Wastewater Branch
1617 Mail. Service Center, Raleigh, NC 27699-1617
A. (4.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
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 theseregulations 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 [Supersedes Section D. (2.) and Section E. (5.) (a)1
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 / DWR / Information Processing Unit
ATTENTION: Central Files / eDMR
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Part I, Page 6 of 8

Permit No. NC0083321
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 prior to 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:
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.) (d)j
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:
htip://portal.ncdenr.org/web/wq/admin/bog/ipuiedmr
Certification. Any person submitting an electronic DMR using the states eDMR system shall
make the following certification [40 CFR 122.221. NO OTHER STATEMENTS OF
CERTIFICATION WILL BE ACCEPTED:
"I certifij, 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."
Partl,Page7of8

Permit No. NC0083321
3. 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].
• Part I, Page 8 of 8

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Latitude: 34°42'45"
Longitude: 77°13'22"
Quad # 130NW
Receiving Stream: Queen Creek
River Basin: White Oak
Stream Class: SA-HQW
Subbasin: 030501
8-digit HUC: 03020301
10
N00083321 - Hubert WTP
Onslow County

awn
WebENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Pat McCrory John E. Skvarla, III
Governor Secretary
October 15, 2014
MEMORANDUM
To:
Diane Williams
NC DENR / DWR / PWSS / Engineering Supervisor
Wilmington Regional Office
From: Julie A. Grzyb
919-807-6389
DWR / Wastewater Branch / NPDES Unit
Subject:
Review of Draft NPDES Permit NC0083321
ONWASA — Hubert Water Treatment Plant
Onslow County
Please indicate below your agency's position or viewpoint on the draft permit and return this form by «DATE». If
you have any questions on the draft permit, please feel free to contact me at the telephone number shown above.
RESPONSE: (Check one)
X
Concur with the issuance of this permit provided the facility is operated and maintained properly, the stated
effluent limits are met prior to discharge, and the discharge does not contravene the designated water
qualitystandards.
Concurs with issuance of the above permit, provided the following conditions are met:
Opposes the issuance of the above permit, based on reasons stated below, or attached:
Signed: Z26:2402e ? faiMadile Date: &.e a € 7Cf: 2_%1
1601 Mail Service Center, Raleigh, North Carolina 27699-1601
Phone: [phone] Internet: www.ncdenr.gov
An Equal opportunity \ Afrmative Action Employer — Made in part by recycled paper

Pat McCrory
Governor
ATA
gebENR
North Carolina Department of Environment and Natural Resources
October 15, 2014
John E. Skvarla, III
Secretary
MEMORANDUM
To: Mark Ethridge//%o r w rd col i'v SAG., --jekk%�s
DivisionMarine Fisheries/Shellfish Sanitation
From: Julie Grzyb
NCDENR/ DWR /Complex Pemutting Unit
Central Raleigh Office
Subject: Review of draft NPDES Permit NC0083321
Hubert WTP
Onslow County
Please complete this form to indicate your agency's position or viewpoint on this draft pemut and return to me by November
14, 2014. If you have any questions on the draft permit, please contact me at telephone number [phone] or via e-
mail at [e-mail].
RESPONSE: Check one)
Concur with the issuance of this permit provided the facility is operated and maintained properly, the stated
effluent limits are met prior to discharge, and the discharge does not contravene the designated water quality
standards.
Signed
Concurs with issuance of this permit, provided the following conditions are met:
Opposes the issuance of this permit, based on reasons stated below, or attached:
{
Date: [1/2.- /
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Phone: [phone] Internet: www.ncwaterquarity.org
An Equal Opportunity 1 Affirmative Action Employer

dlember Governments
Holly Ridge
Jacksonville
North Topsail Beads
Onslow County
Richlands
Swansboro
ONWASA
Onslow Water & Sewer Authority
Utilities and Planning
Timothy Webb
Superintendent
[e-mail]
910.937.7509 Tel
910.347.0793 Fax
November 7, 2014
Julie A. Grzyb
Environmental Engineer, NPDES Wastewater
Division of Water Resources, NCDENR
Dear Mrs. Grzyb,
Subject: Draft NPDES permit NC0083321 Hubert WTP
ONWASA is in receipt of the draft permit dated October 8, 2014.
RECEIVED/DENR/DWR
NOV 1 2 2014
Water Quality
Permitting Section
It appears both of ONWASA's Water Treatment Plants, while performing the same functions and drawing from the same
water source, have different monitoring requirements. In order to gain parity, ONWASA would therefore like to request
that the following changes be made to Hubert WTP NPDES permit NC0083321:
• Salinity changed to a grab sample for Effluent, Upstream and Downstream as written in the previous permit.
• Conductivity changed to a grab sample for Effluent, Upstream and Downstream as written in the previous permit.
• Total Dissolved Solids changed back to a grab as written in the previous permit.
• Total Suspended Solids changed back to a grab as written in the previous permit.
• Total Residual Chlorine removed from the parameters as we do know use finish water in the plant or chlorinate
the effluent.
• Quarterly total nitrogen (TN) would suffice for a nitrogen analysis and recommend dropping the monthly
ammonia. No ammonia has been detected and the total nitrogen (TN) requires us to analyze TKN (organic
ammonia) and nitrate plus nitrite for the TN result.
I hope this request and the intended purpose of such is favorable to you. Please contact me at [phone] or
[e-mail] your convenience to discuss this further.
Respectfully,
Tim Webb
Utilities and Planning Superintendent
ONWASA
228 Georgetown Rd
Jacksonville NC 28540
Tel [phone]
Enclosure
cc: Billy Farmer; Executive Director ONWASA
228 Georgetown Road • P.O. Box 1415 • Jacksonville, NC 28540 • Tel [phone] • Fax [phone] • www.onwasa.conr

PUBLIC NOTICE
ONSLOW COUNTY
NORTH CAROLINA
AFFIDAVIT OF PUBLICATION
a---AiNr1IJaroiina Environ-
mental Management Corr
mission/NPDES Unit
1617 Mail Service Cente
Raleigh, NC 27699-161"i
Before the undersigned, a Notary Public of County and State of said publisher, duly commissioned, qualii Notice of Intent to lssu
a NPDES lAtistewatE
and authorized by law to administer oaths, personally appeared Permit
who being first duly sworn, deposes and says: that he (she) is .Timmy Williams, Editor
(Owner, partner or other officer or employee authorized to make this affidavit)
of THE CARTERET PUBLISHING CO., INC., Carteret County, N.C., engaged in the publication of a ne
paper known as Tideland News, published, issued, and entered as second class mail in the Town of Swansb
in said County and State; that he (she) is authorized to make this affidavit and sworn statement; that the no
or other legal advertisement, a true copy of which is attached hereto, was published in Tideland News on
following dates: 10/15/14 and that the said newsp;
in which such notice, paper, document, or legal advertisement was published was, at the time of each and e'
such publication, a newspaper meeting all of the requirements and qualifications of Section 1-597 of the Gen
Statues of North Carolina and was a qualified newspaper within the meaning of Section 1-597 of the Gen
Statues of North Carolina.
This the 3rd day of December , 2014.
.31AA1—
Signature of person making affid; f
Sworn to and subscribed before me, this 3rd day of December , 2014.
My commission expires August 24, 2019
`YYk coz l�lz rr� -
The North Carblina Er
vironmental Managemer
Commission proposes t
issue a NPDES wastews
ter•discharge permit to th.
person(s) listed below►
Written comments regard
ing the proposed permi
will be accepted until 3
days after the publish data
of this notice. The Direct°
of the NC Division of Wa
ter Resources (DWR) ma!
hold a public hearinc
should there be a signifi
cant degree of public inter
est. Please mail comment:
and/or information re•
quests to DWR at the
above address. Interestec
persmsit e
DWRons at 512ay N. visit
. Sbuthr�
Street, Raleigh, NC to re.
view information on file
Additional information on
NPDES permits and this
notice may be found .on
our website:
http://portal.ncdenr.org/we
b/wq/swp/ps/npdes/calen-
dar, or by calling (919)
807-6390. Onslow Water
and Sewer Authority re-
quested renewal of permit
NC0083321 for Its Hubert
Water Treatment Plant in
Onsiow County; this per-
mitted discharge is treated
liter backwash and reject
softener vs s t ewaters to
Queen Creek, White Oak
River Basin.
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DENR / DWQ / NPDES Unit
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES Permit No. NC0083321
Permit Number
NC0083321
Facility Owner and Name
Onslow Water & Sewer Authority (ONWASA)/ Hubert WTP
Type of Permit Request
Renewal
Basin Name/Sub-basin number/Index
White Oak / 03-05-01 / 19-41-16
Receiving Stream
Queen Creek
Stream Classification
SA-HQW
County
Onslow
HUC
03020301
Is the stream impaired (on 303(d) list)?
Yes, for shellfish harvesting 2012/ Not listed as impaired
under draft 303(d) 2014 list
Regional Office
Wilmington
Permit Writer/Date
Julie Grzyb / October 3, 2014
Onslow Water and Sewer Authority
Hubert Water Treatment Plant
Outfall 001: 34° 42' 45" N; 77° 13' 22" W
AAR,
Summary
This application from ONWASA is for the renewal of the NPDES permit for the Hubert WTP.
Groundwater is treated using greensand filters, ion exchange softeners, and carbon filtration.
Potassium Permanganate is added to the raw water that is aerated and settled. The greensand filters are
used to remove the iron, followed by ion exchange softening, and carbon filtration for TOC removal.
The water is disinfected using chlorine and is treated with fluoride and a zinc orthophosphate corrosive
inhibitor.
Backwash from the greensand and carbon filters, and reject wastewaters from the ion exchange units
are discharged to a series of four lined lagoons each with a capacity of 0.75 MG. Clear supernatant
from the tertiary lagoons is pumped to the receiving stream.
This facility discharges to the headwaters of Queen Creek in the White Oak River Basin. The
receiving stream is classified SA-HQW but this area has been closed to shellfish harvesting for many
years. This segment of Queen's Creek was listed on the 2012 303(d) list for loss of shellfish
harvesting. A TMDL for fecal coliform was completed in 2011 which removed this segment of
Queen's Creek from the 2014 303(d) list; however, this segment is still considered impaired for loss of
shellfish harvesting and is listed on the 303(b) list.
Compliance History
• A compliance history was obtained from BIMS, searching all limits violations since January 2010.
The facility had the following violations that have resulted in NOVs: monthly average and weekly
average TSS limits in January 2011, weekly average TSS limit in December 2013, monthly
average and weekly average TSS limits in July 2014. Although the compliance history also
referenced exceedances of total iron, total dissolved solids, and chlorides, these limit violations are
referring to a groundwater permit.
• A facility compliance inspection was performed by Linda Willis of WiRO on February 2, 2012.
No significant issues or findings were noted.
• Regarding toxicity testing, this facility has failed 17 of the past 21 toxicity tests taken since June
2009. A special condition was added which requires ONWASA to perform a Discharge
Page 1 of 4

NPDES Permit No. NC0083321
Alternatives Evaluation during the next permit cycle to analyze and address aquatic toxicity in the
effluent. See special condition A.(3.).
Current Effluent Characteristics
Flow. The WTP's maximum, monthly flow over the past three years (Aug. 2011- July 2014) was 0.3015
MGD. The ammonia -nitrogen was typically less than 1 or 0.2 mg/L with one sample at 2.7 mg/L. The
Total Nitrogen was unusually high with values above 10 and sometimes in the twenties in 2013 and 2014.
Table 1. Average and maximum effluent data collected from 1/2011 through 3/2014.
Parameter
Flow
Total
Dissolved
Solids
Total
Suspended
Solids
Ammonia
Nitrogen
Total
Nitrogen
;,,,,
Total
Phosphorus
Total
Copper
Total
Zinc
(MGD)
(mg/1)
(mg/L)
(mg/L)
On
(mg/L)
(µg/L)
(µg/L)
average
g
0.112
6,826
4.17
0.63
. t
0.19
24
126
maximum
0.777
10,900
21.3
2.70
.1...
2.9
400
2330
Limit (MA)
0.518
10 MA/ 15 WA
, ''`�w ;� ,,
Table 1 (continued
Parameter
Total Lead
Total
Manganese
Tot 1,�ti.
Ir
Total
Fluoride
Chlorin,,,
Salinity
ti\
Dissolved
Oxygen
(µg/L)
(µg/L)
(µg/t)
(mg/L)
.��, (mg/L)
» )
(mg/L)
average
< 10
858
227 '�``
`1.25 ,
3628
5,-\
9.03
maximum
< 40
7830:0\. ,, 4120
5 ; ti
'N. 7030
15.9 .
4.01 min
Limit (MA)‘,\NVft.,,,,N.,,
.,It
Instream Data Review
Instream sampling was reviewed.rom Jan. 2
dissolved oxygen, pH, saIii . d mperature
to have any impact onAirature3 sand disso1
downstream was due to v,dissolvea'' ygen ups
dry significai
quire
did impact stream salinity's
Since pH instre r onitorin.
instream mo~ � n "arameter i
temper \ �'� ��`�jxvgen
ay d disso�1
v��
Reasonab tential Anal �'
4
The folio l?
parameters o
lead. Zinc a ` 4 popper effluen)
(WQSs) and le mples wer
and total copper m Loring w ,
conjunction with tox � ruteetin
Changes from Previous Per
• Added requirement that Onslow Water and Sewer Authority shall begin reporting discharge
monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report
(eDMR) internet application.
am moni
t 2014: a facility samples conductivity,
,dischar ` The discharge did not appear
n. Lo solved oxygen measured
nd not the P's effluent. However, the effluent
sometimes increasing the concentrations 3 fold.
5A NCAC 2B .0500 it was removed as an
Inae�ordance with WTP NPDES guidance,
‘?-se removed in the permit renewal
Tern we onsidered in the RPA: total zinc, total copper, and total
ta showed reasonable potential to violate Water Quality Standards
less than the detection limit. As action level parameters, total zinc
aintained in the permit and sampling reduced to quarterly in
onitoring for lead was removed from the permit.
• A footnote was added to the limit for TRC such that the Division shall consider all effluent TRC
values reported below 50 µg/L to be in compliance with the permit.
• In accordance with Division guidelines for Water Treatment Plants, the flow limitation was
removed.
Page 2 of 4

NPDES Permit No. NC0083321
• In accordance with Division guidelines for Water Treatment Plants discharging a maximum,
monthly average flow of less than 0.500 MGD, monitoring for flow, temperature, salinity,
chloride, pH, conductivity, dissolved oxygen, total dissolved solids, total suspended solids, and
total residual chlorine was reduced.
• Monitoring for fluoride, iron and manganese was removed since there are no saltwater water
quality standards for these parameters.
• In accordance with Administrative Code 15A NCAC 2B .0500 monitoring for total phosphorus
and total nitrogen was reduced to quarterly and pH instream monitoring was removed.
• Effluent lead data from Jan. 2011 through March 2014 was r ,forted at less than detection levels.
With no reasonablepotential to violate state water quality: ~drds, lead monitoring was removed
from the permit. q ty.t�.
• A Reasonable Potential Analysis was performed on the effluent data and total copper and total zinc
showed reasonable potential to violate state water quality standards. Copper and zinc monitoring
will remain in the permit. In accordance with Division guidelines for Water Treatment Plants,
monitoring requirements for total copper and for total zinc were changed to quarterly.
• Turbidity monitoring has been added in accordance with Administrative Code, 15A NCAC 2B
.0500 and as requested by EPA. ''::
• Whole Effluent Toxicity test resul(s'siibmitted 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, ONWASA shall perform a Discharge Alternatives Evaluation as
described in Section A. (3.) of this permit. This evaluation is beingsi.•equested to determine whether
there are any economical and technologically feasible alternatives available to ONWASA to
comply with NC Water Quality Standards. ONWASA will begiven approximately one permit
cycle to evaluate and document possible treatment/discharge alternatives to eliminate aquatic
toxicity. The evaluation shall be submitted with the ONWASA's next permit renewal application
and will be carefully reviewed by the Division withahe results will be used in the development of
a compliance schedule or possible variance request.
• Ammonia nitrogen monitoring wilt be „tained i,, t e at . .educed pl:ng frequency
• Chloride monitoring will be maintained in the permit at a reduced sampling frequency. It does
appear to be a contributor of aquatic toxicity.
Proposed Schedule of Issuance
Draft Permit to Public Notice:
Scheduled to Issue:
October 8, 2014 (estimate)
December 1, 2014 (estimate)
NPDES Contact
If you have questions regarding any of the above information or on the attached permit, please contact
Julie Grzyb at [e-mail] or at 919-807-6389.
Page 3 of 4

NPDES Permit No. NC0083321
ADDENDUM 12-4-2014
On November 12, 2014 comments were received from ONWASA on the draft permit. Each
of the comments is addressed below. Changes made to the permit as a result of the comments
are identified as well.
ONWASA requested to change the sample type from composite to grab for Salinity, Conductivity,
and Total Dissolved Solids.
• As requested, the sample type for Salinity, Conductivity, and Total Dissolved Solids was
changed to a grab sample.
ONWASA requested to change the sample type from composite to grab for TSS.
• For Ion Exchange WTP's, Total Suspended Solids collected at the effluent is expected to be a
composite sample and should have been changed during the pre};e permit renewal. TSS will
remain as a composite sample type in the permit.
ONWASA stated that chlorinated finished water is not used irtitk t and can be removed from
the permit.��,
• In case finished water is ever used, the footnote forjgta1 Residual C'.\111 brine has been revised
to include the following sentence:
"The limit and monitoringre uirement" ti a 1 if the facility` chlorine or
q �� �' Pp Y , .;��wt
chlorine derivatives to waters that are eve ` lly discharged....."
the wastewai? \
`ment be removed
ing the adoption of EPA's
W/L) durii a next Triennial Review. In
en same k2.7 mg/L. All other
he DI `fin concurs with
uuement was removed from the
Monitoring is not required if chlorine residuals are' `contai
ONWASA requested that the ammonia- a)ften monitorzn • The Permittee was informed that Nor`;: Ina will be e
2013 Ammonia criteria (chronic limit
Jan. 2014 the Hubert WTP reported one
samples for the previou .eye ears were'
ONWASA's re uestAnie i nia-nitro
permit. '`� �•'�`
ti
T`ck
Wks
.4% %%Tx\
'•t
Page 4 of 4
J
ay

Hubert WTP
NC0083321
Qw (MGD) _
1Q1OS (cfs)=
7Q 1 OS (cfs) =
7QIOW (cfs) =
30Q2 (cfs) =
Avg. Stream Flow, QA (cfs) =
Receiving Stream:
0.30
Acute IWC = 100%
Tidal, IWC = 100%
Tidal, IWC = 100%
Tidal, IWC = 100%
Tidal, IWC = 100%
Queen Creek
2014 Saltwater RPA 95% Probablity/95% Confidence
MAXIMUM DATA POINTS = 58
WWTP/WTP Class: unclassified
1WC @ 1Q1OS = 100.00%
IWC @ 7Q10S = 100.00%
IWC @ 7Q10W = 100.00%
IWC @ 30Q2 = 100.00%
IWC a QA = 100.00%
Stream Class: SA-HQW
Outfall 001
Qw = 0.3015 MGD
PARAMETER
TY( )E
STANDARDS & CRITERIA (2)
a
UNITS
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WQS /
Chronic
Applied
Standard
%s FAV /
Acute
fl
Max Prcd
# Dct. Cw Allowable Cw
Copper (AL)
NC
3
SW
5.8
ug/L
58
5
200.0
Acute: 5.8
_ _ —
_ _ — --ill-
Chni roc: 3.0
5S value(s) > Allowable Cw
RPA for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Monitoring in conjunction with TOX Test ---
——- — ------
Lead
NC
25
SW
221
ug/L
0
0
N/A
Acute: 221.0
Chronic 25.0
all values < detect
—-------------
Zinc (AL)
NC
86
SW
95
ug/L
58
51
2,330
Acute: 95
_ — — _ —
Chronic:------
16 value(s) > Allowable Cw
RPA for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Monitoring in conjunction with TOX Test ---
9595 SALTWATER RPA20141,rpa
Page 1 of 1 10/1/2014

2012 North Carolina 303(d) List -Category 5
White Oak River Basin
> AU Number
Name
10-digit Watershed 0302030103
Description
Length or Area
Bogue Banks-Bogue Sound
Units Classification
Category
Category Rating
Use
Reason for Rating
Parameter
Year
> 19-41-16-5
Dicks Creek
From source to Queen Creek
22.8
S Acres
SA;HQW 5
5 Impaired Shellfish Harvesting Loss of Use
Shellfish Growing Area -Prohibited
2002
> 19-41-16a
Queen Creek
DEH closed area from source to DEH Conditionally Approved closed line 283.7
at Queens Creek Road Bridge.
5 Acres
SA;HQW 5
5 Impaired Shellfish Harvesting Loss of Use
Shellfish Growing Area -Prohibited
2002
> 19-41-16b1
Queen Creek
From DEH Conditionally Approved closed line at Queens Creek Road
Bridge to DEH Conditionally Approved Open line at northeast mouth of
Parrot Swamp.
150.8
5 Acres
SA;HQW 5
5 Impaired Shellfish Harvesting Loss of Use
Shellfish Growing Area -Conditionally Approved 2002
> 19-41-16b2
Queen Creek
From DEH Conditionally Approved closed line at Queens Creek Road
Bridge to DEH Conditionally Approved Open line at northeast mouth of
Parrot Swamp.
11.6
5 Acres
SA;HQW 5
Impaired Shellfish Harvesting Loss of Use
Shellfish Growing Area -Conditionally Approved 2002
> 19-41-16d
Queen Creek
DEH closed area at mouth of Dicks Creek
3.0
S Acres
SA;HQW 5
Impaired Shellfish Harvesting Loss of Use
Shellfish Growing Area -Prohibited
2002
White Oak River Basin
10-digit Watershed 0302030104
12-digit Subwatershed
030203010405
Newport River
Core Creek
> 21-24-1
Eastman Creek
From source to Core Creek
15.5
S Acres
SA;HQW 5
5 Impaired Shellfish Harvesting Loss of Use
Shellfish Growing Area -Prohibited
2002
> 21-24-2a
Bell Creek
From source to DEH closed line
19.6
5 Acres
SA;HQW 5
5 Impaired Shellfish Harvesting Loss of Use
Shellfish Growing Area -Prohibited
2002
Thursday, March 29, 2012
For EPA Review Submitted March 30, 2012
Page 126 of 177

White Oak River Basin
2014 AU Number:
AU Name:
AU Length Area:
AU Units:
Classification:
AU Description:
20-29-1
Pettiford Creek
From source to Pettiford Creek Bay
IRCategory: ACS: Parameter Of Interest:
1 MC Benthos Natural (Nar, AL, FW)
4t EC Shellfish Growing Area -Prohibited (Fecal, SH, SA)
4t EC Fish Tissue Mercury (Nar, FC, NC)
41.6 S Acres
SA;HQW
Collection Year: 303(d) yr:
2008
2010 2002
2012 2008
20-29 Pettiford Creek Bay
Entire Bay
239.3 S Acres
SA;HQW
IRCategory: ACS: Parameter Of Interest: Collection Year: 303(d) yr:
4t EC Shellfish Growing Area -Prohibited (Fecal, SH, SA) 2010 2002
4t EC Fish Tissue Mercury (Nar, FC, NC) 2012 2008
20-21 Pitts Creek (Hargetts Creek) 1.8 S Acres SA;HQW
From source to White Oak River (0.3 S Miles)
IRCategory: ACS: Parameter Of Interest: Collection Year: 303(d) yr:
4t EC Shellfish Growing Area -Prohibited (Fecal, SH, SA) 2010 2002
4t EC Fish Tissue Mercury (Nar, FC, NC) 2012 2008
19-41-16b1 Queen Creek
150.8 S Acres SA;HQW
From DEH Conditionally Approved closed line at Queens Creek Road Bridge to DEH Conditionally Approved Open line
at northeast mouth of Parrot Swamp.
IRCategory: ACS: Parameter Of Interest: Collection Year: 303(d) yr:
4t EC Conditionally Approved Closed Growing Area (Fecal, SH, SA) 2010 2002
4t EC Fish Tissue Mercury (Nar, FC, NC) 2012 2008
19-41-16a Queen Creek
283.7 S Acres SA;HQW
DEH closed area from source to DEH Conditionally Approved closed line at Queens Creek Road Bridge.
IRCategory: ACS: Parameter Of Interest: Collection Year: 303(d) yr:
4t EC Shellfish Growing Area -Prohibited (Fecal, SH, SA) 2010 2002
4t EC Fish Tissue Mercury (Nar, FC, NC) 2012 2008
19-41-16d Queen Creek 3.0 S Acres SA;HQW
DEH closed area at mouth of Dicks Creek
IRCategory: ACS: Parameter Of Interest: Collection Year: 303(d) yr:
4t EC Shellfish Growing Area -Prohibited (Fecal, SH, SA) 2010 2002
4t EC Fish Tissue Mercury (Nar, FC, NC) 2012 2008
Monday, February 10, 2014
draft 2014 NC Water Quality Assessment
3,3 (t) -4- (b)
Page 928 of 1069

•
•
NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number ,NC0083321
If you are completing this form in computer use the TAB key or the up - down arrows to move from one
field to the next. To check the boxes, click your mouse on top of the box Otherwise, please print or type.
1. Contact Information:
Owner Name Onslow Water and Sewer Authority
Facility Name Hubert Water Treatment Plant
Mailing Address 228 Georgetown Rd
City Jacksonville
State / Zip Code NC/ 28540
Telephone Number [phone]
Fax Number [phone]
e-mail Address hubert [e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road 374 Hubert Blvd
City
State / Zip Code
County
Hubert
NC/28539
Onslow
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name Onslow Water and Sewer Authority
Mailing Address 228 Georgetown Rd
City Jacksonville •
State / Zip Code NC/28540
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Page 1 of 1
fE@EOWE
NOV 292011
DENR-WATER QUALITY
POINT SOURCE BRANCH
C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Federal ❑ State 0 • Private ❑ Public
5. Type of treatment plant:
® Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfection)
® Ion Exchange (Sodium Cycle Cationic ion exchange)
® Green Sand Filter (No sodium recharge)
❑ Membrane Technology (RO, nanofiltration)
Check here if the treatment process also uses a water softener
6. Description of source water(s) (i.e. groundwater, surface water)
Groundwater
7. Describe the treatment process(es) for the raw water:
Airation, Sedimentation, Iron Filteration with Green Sand, Ion Exchange for Ca/Mg
Removal, Carbon Filtration for TOC removal, Disinfection (Chlorine), Flouridation,
Corrosion Inhibitor (Zinc Orthophosphate).
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Process waste from Green Sand filters, Ion Exchange Softeners, and Carbon Filters,
Discharged to series of settling lagoons, clear supernatent pumped to receiving stream.
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge:
Continuous 0 Intermittent El
If intermittent:
Days per week discharge occurs: 7 Duration: 18hrs
11. Plant design potable flowrate 6 MGD
Backwash or reject flow .518 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitudes
Queens Creek
Page 2 of 2
C-WTP 03/05

•
•
NPDES PERMIT APPLICATION -,SHORT FORM C - WTP
For discharges associated with water treatment plants
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
KMnO4, NaCL, household cleaners
14. Is this facility located on Indian country? (check one)
Yes ❑ No
15. Additional Information:
• Provide a schematic of flow through the facility, include flow volumes at all points in
the treatment process, and point of addition of chemicals.
• Solids Handling Plan
16. NEW Applicants
Information needed in addition to items 1-15:
• New applicants must contact a permit coordinator with the NCDENR Customer
Service Center.
Was the Customer Service Center contacted? ❑ Yes 0 No
• Analyses of source water collected
Engineering Alternative Analysis •
• Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a
water quality model.
17. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
James R. Butler, PE
Engineering' Director
Printed name of on Signing Title
�Z NU'//
S' ature pplicant Date
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan, or other document files or
required to be maintained under Article 21 or regulations of the Environmental Management Commission
implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or
monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable
•
Page 3 of 3 C-WTP 03/05

Member Govts.
Onslow County
Holly Ridge
Jacksonville
North Topsail Beach
Richlands
Swansboro
• ONW
Onslow Water & Sewer Authority
AS
Email: [e-mail]
Website: www.onwasa.com
Office.of the
Water Production Superintendent
Karen Wallace
ONWASA would like to formally request the Division of Water Quality reconsider including the
following parameters when issuing renewal NPDES Permit NC0083321, Hubert Water Treatment
Plant. Copper, Lead, Zinc, Ammonia Nitrogen, Total Phosphorus, Total Nitrogen.
The attached document supports data indicating these parameters are routinely testing at or less
than the level of detection for that method. Process at this Physical/Chemical I plant has not
changed to indicate by- products of biological treatment are present and source water treated at the
plant is absent of the metals currently being monitored in the waste product.
The attached data includes the last 22 months of monitoring results but more can be provided upon
DWQ's request.
228 Georgetown Road. • P.O. Box 1415 • Jacksonville, NC 28540 • Tel [phone] • Fax [phone]

Hubert WTP NC 0083321
Ammonia Total ' Total
Copper Zinc Nitrogen Phosphorus Nitrogen
mg/I Lead mg/I . mg/I mg/I mg/I mg/I
Jan-10 <0.010 <0.010 0.018 <0.2 <0.04 <0.5
Jan-10 <0.010 <0.010 0.02 <0.04 <0.5
Feb-10 <0.010 <0.010 0.012 <0.2 <0.04 <0.5
Feb-10 <0.010 <0.010 0.126 <0.2 0.11 <0.5
Mar-10 <0.010 0.012 <0.2 <0.04
Mar-10 <0.010 0.126
Apr-10 <0.010 <0.010 0.029 <0.2 <0.04 <0.5
Apr-10 <0.010 <0.010 0.022 <0.2 <0.04 <0.5
May-10 <0.010 <0.010 0.016 <0.2 <0.04 <0.5
May-10 <0.010 <0.010 0.001 <0.2 <0.04 <0.5
Jun-10 <0.010 <0.010 <0.010 <0.2 <0.04 <0.5
Jun-10 <0.010 <0.010 <0.010 <0.2 <0.04 <0.5
Jul-10 <0.010 0.066 <0.010 <0.2 <0.04 <0.5
Jul-10 <0.010 <0.010 <0.010 <0.2 0.06 0.9
Aug-10 <0.010 <0.010 <0.010 <0.2 0.35 <0.5
Aug-10 <0.010 <0.010 <0.02 <0.2 <0.04 <0.5
Sep-10 <0.010 <0.010 <0.010 0.3 <0.04 0.5
Sep-10 <0.010 <0.010 <0.02 <0.2 <0.04 <0.5
Oct-10 <0.010 <0.010 0.059 <0.2 <0.04 <0.5
Oct-10 <0.010 <0.010 <0.02 <0.2 <0.04 <0.5
Nov-10 <0.010 <0.010 <0.020 0.3 <0.04 1.0
Nov-10 <0.010 <0.010 0.925 <0.2 1.93 <0.5
Dec-10 <0.010 <0.010 0.145 <0.2 0.42 <0.5
Dec-10 <0.010 <0.010 2.63 <0.2 3.89 <0.5
Jan-11 <0.010 <0.010 0.105 <0.2 0.09 <0.5
Jan-11 <0.010 <0.010 0.266 <0.2 0.38 <0.5
Feb-11 <0.01Q <0.010 0.320 <0.2 0.56 <015
Feb-11 <0.010 <0.010 0.093 <0.2 0.46 <0.5
Mar-11 <0.010 <0.010 0.07 <0.2 0.31 <0.5
Mar-11 <0.010 <0.010 0.042 <0.2 0.38 0.8
Apr-11 <0.010 <0.010 0.025 <0.2 <0.04 <0.5
Apr-11 <0.010 <0.010 0.015 <0.2 0.14 <0.5
May-11 <0.010 <0.010 0.012 <0.2 <0.04 <0.5
May-11 <0.010 <0.010 0.233 0.7 0.25 1.2
Jun-11 <0.010 <0.010 <0.010 <0.2 <0.04 <0.5
Jun-11 <0.010 <0.010 <0.010 <0.2 <0.04 <0.5
Jul-11 <0.010 <0.010 <0.010 <0.2 0.08 <0.5
Jul-11 <0.010 <0.010 t0.010 <0.2 0.16 <0.5
Aug-11 <0.010 <0.010 <0.010 <0.2 0.04 <0.5
Aug-11 <0.010 <0.010 <0.010 <0.2 0.10 0.5
Sep-11 <0.010 <0.010 <0.010 <0.2 <0.04 <0.5
Sep-11 <0.010 <0.010 <0.010 <0.2 <0.04 <0.5
Oct-11 <0.010 <0.010 <0.010 <0.2 <0.04 <0.5
Oct-11 <0.010 <0.010 <0.010 <0.2 <0.04 <0.5

Hubert WTP
374 Hubert Blvd. Hubert N.C. 28539
NPDES # NC0083321
Each lagoon holds .75 MG
There is no chemical addition.
Max influent flow is 1300 GPM as a batch feed
Effluent vault has a 80 GPM pump and a 350 GPM PUMP
Three Alternate influent point*
1*
Mnery
Secondary
Influent
Tertiary
cnt
From `P

Solids Handling Plan
Hubert Water Treatment Plant
NGoogsszi
A pump and haul method of removing solids from the four (4) lagoons at Hubert
UVTP will be utilized. Solids will be dewatered to pass the paint test and
transported by truck to the Onslow County Landfill. The lagoons will be pumped
every three (3) years so as not to allow solids accumulation to interfere with
detention time.