NC0077143_Permit Issuance_20130911

s 4t •:'
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Water Quality Programs
Pat McCrory Thomas A. Reeder John E. Skvarla, III
Governor Director Secretary
September 11, 2013
Lisa �mlth=Perr'
General Manager
West Carteret Water Corporation
4104 NC Highway 24
Newport, NC 28570
Subject: Issuance of NPDES Permit
NPDES Permit NCO077143
West Carteret WTP
Carteret County
Class I
Dear Ms. Smith -Perri:
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).
Please note that the receiving stream is listed as an impaired waterbody on the North Carolina
2012 3 03 (d) Impaired Waters List for 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 Divisions reviewed your March 1, 2013 comments and June 20, 2013 follow up letter and
concerns in regards to the draft permit requirements, including your request to remove requirements for a
new effluent meter system and for conversion to automatic composite sampling. To be consistent with
other facilities similar to yours., the Division concurred with ' your requests and comments, and the
following changes were incorporated in your final permit:
1) The additional effluent meter system is not required. The existing backwash meters are
sufficient to monitor effluent flow. Please note flow monitoring frequency has been corrected
as defined in the Division's WTP Strategy to 2/Month and as instantaneous which requires
reporting of duration.
2) Effluent composite sampling may be a manual program as defined in 15A NCAC 02B
.0503(4). The Wilmington Regional Office can assist with the establishment of the
appropriate manual program.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St Raleigh, North Carolina 27604
Phone: [phone] Fax: [phone]
Internet:: www.ncwaternuality.org
An Equal opportuni"ffirrnative Action Employer

3) To sample parameters of concern with their primary source as identified in the WTP Strategy,
specific parameters are to be sampled during specific backwash events. Please see footnotes
to match parameters monitoring to specific backwash events.
4) Total Nitrogen and Total Phosphorus monitoring was removed as it is not required in this
portion of the White Oak River Basin.
Summary of Changes in Final Permit from ExistingPerini
ermit
1) Effluent flow monitoring frequency was reduced to 2/Month and requires reporting of duration.
Per WTP Strategy, instantaneous flow monitoring required.
2) Total Residual Chlorine monitoring was reduced to 2/Month. Technical correction.
3) Turbidity monthly monitoring was added. Monitoring for turbidity is required by US EPA Region
fV.
4) Instream monitoring for pH, salinity, and conductivity were added. Per WTP Strategy, instream
monitor-ingrequirements.
5) Effluent Dissolved Oxygen, Total Iron, and temperature monitoring were removed. No reported
DO effluent values below WQS, no saltwater Total Iron WQS, and no significant impact from
effluent temperature anticipated, monitoring removed.
6) Effluent salinity, conductivity, total suspended solids, and total dissolved solids sample type were
corrected to composite. Technical correction.
7) Acute Toxicity special condition A. (2) and footnote narratives, supplemental narrative were
updated.
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
permits required by the Division of Land Resources, the Coastal Area Management Act or any other
federal or local governmental permits that may be required.
If you have any questions concerning this permit, please contact Ron Berry at telephone number
[phone] or at email [e-mail].
Sincerely,
omas A. ee er
Attachments
Cc: Wilmington Regional Office/Water Quality Programs (attach revised fact sheet)
Environmental Sciences Section/Aquatic Toxicology Unit/Susan Meadows (email)
Shellfish Sanitation/Patti Flower (email)
Division of Marine Fisheries/Mark Ethridge (email)
Wildlife Resources Commission/Shari Bryant (email)
US Fish and Wildlife Services/ Sara Ward (email)
Central Files
NPDES File
Page 2 of 2

Permit NCO077143
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
PERMIT
_CHAR�F W�.S-�'EWATP�I�ER T�-
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
West Carteret Water Corporation
is hereby authorized to discharge wastewater from a facility located at the
West Carteret WTP
4104 NC Highway 24
Carteret County
to receiving waters designated as the East Prong Sanders Creek in the White Oak River Basin in
accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, and IIi hereof.
This permit shall become effective ......................... October 1, 2013.
This permit and authorization to discharge shall expire at midnight on July 31, 2017.
Signed this day ....................................... September 11, 2013.
ov - -4,
�.
V!,ias
A. Ree ctor
on of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

Permit NCO077143
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.
West Carteret Water Corporation
is hereby authorized to:
1. Continue to operate a Water Treatment Plant with intermittent discharges of softeners
backwash/rinse wastewater, color filters backwash wastewater, and greensand filters backwash
wastewater. This facility currently has a design potable flow rate of 2.0 MGD and a maximum,
monthly average wastewater discharge of 0.096 MGD. The water plant and wastewater
components consist of:
o Three (3) 400 gpm capacity green sand iron filters with potassium permanganate feed
system and shared meter system
o Seven (7) 240 gpm capacity water softeners with brine regeneration system and shared
meter system
o Five (5) 320 gpm capacity color filters with brine regeneration system and shared meter
system
o Finished drinking water chemical addition systems for ortho-polyphosphate inhibitor, aqua
ammonia, and chlorination.
o One (1) 70 ft x 36 ft settling lagoon for color filters wastewater with pump station
o One (1) 52 ft x 52 ft filtering lagoon for softener wastewater with pump station (not in
active service)
o Twelve (12) 50 ft x 20 ft drying beds for green sand filters backwash wastewater
o Backwash pumps, transfer pumps, and controls for equipment operation
This facility is located east of the Bogue Community on NC Highway 24 at the West Carteret WTP
in Carteret County.
2. Discharge from said treatment works at the location specified on the attached map into the East
Prong Sanders Creek, classified SA HQW waters in the White Oak River Basin.
Page 2 of 6

Permit NCO077143
Part I
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 is authorized to discharge backwash/rinse wastewater from Outfall 001. Such discharges
shall be limited and monitored by the Permittee as specified below:
EFFLUENT
LIMITS
MONITORING REQUIREMENTS
Monthly
Daily
Measurement
Sample
Sample
CHARACTERISTICS
(Parameter Code)
Average
Maximum
Frequency
Type
Location
50050)
Total Residual Chlorine
13 µg/L
2/Month
Grab
Effluent
(50060)
Total Suspended Solids
20.0 mg/L
30.0 mg/L
2/Month
Composite
Effluent
(00530)
01051)
IL
onth
PH
Not less than 6.8 S.U. nor
2/Month
Grab
Effluent
(00400)
greater than 8.5 S.U.
pH, S.U. 4
Monthly
Grab
Upstream &
Downstream
Salinity, ppt
00480)
Monthly
Composite
Effluent
Salinity, ppt 4
Monthly
Grab
Upstream &
Downstream
Conductivity, µmohs/cm
Monthly
Composite
Effluent
00094)
Conductivity, µmohs/cm 4
Monthly
Grab
Upstream &
Downstream
Turbidity, NTU
Monthly
Grab
Effluent
00070)
Total Dissolved Solids, mg/L
Monthly
Composite
Effluent
0295)
Ammonia as Nitrogen, mg/L
Monthl
Composite
Effluent
(C0610)
01055)
t
Total Copper, µg/L
Quarterly
Composite
Effluent
01042)
Total Zinc, µg/L
Quarterly
Composite
Effluent
01092)
Acute Toxicity
GE3E)In
Monitor & Report
Quarterly
Composite
Effluent
SQ-
Page 3 of 6

Permit NC0077143
(Continued A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS)
Footnotes:
1. Upstream is 20Xfeenorth of outfall. Downstream is 20 feet south (towards Sanders Creek) of
outfall.
2. The duration of the dischgrge must be reported in addition to the total flow.
3. Limits and monitoring only'.qpply if the facility adds chlorine or a chlorine derivative to water
that is eventually discharged,, Sample shall be collected only during a greensand filter
wastewater discharge event. The Division shall consider all effluent TRC values reported
below 50 µg/L to be in compliance with the permit. However, the Permittee shall continue to
record Md submit all Values Cat'61irraecrCtlfied-labz5rat'cry (indUding-ffe1-
certified), even if these values fall below 50 µg/L.
4. Sample shall be collected only during a softener or color filter wastewater discharge event.
5, Samples shall be collected in conjunction with acute toxicity sample.
Y Acute Toxicity 24-hour Pass/Fail Monitoring: (January, April, July and October). Permittee
shall use mysid shrimp as the test organism unless another organism of equal or greater
sensitivity is deemed more appropriate based on the charactgristics of the discharge and
receiving stream. The composite sample collected from either the softener or color filter event
shall be used. See Special Condition A. (2) for details.
b. All samples collected must be from a representative discharge event.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 4 of 6

Permit NCO077143
A. (2) ACUTE TOXICITY OXICITY PASS/FAIL MONITORING (QRTRLY)
The permitteeeall 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 mortality is 90% (defined as treatment two
in the procedure document). Effluent samples for self -monitoring purposes must be obtained during
representative effluent discharge below all waste treatment. The tests will be performed during the
months of January, April, July and October. These months signify the first month of each three month
toxicity testing quarter assigned to the facility.
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, DWQ Form AT-2 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Environmental Sciences Section
1621 Mail Service Center
Raleigh, N.C. 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental 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 Environmental 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. Assessment of toxicity compliance
is based on the toxicity testing quarter, which is the three month time interval that begins on the first
day of the month in which toxicity testing is required by this permit and continues until the final day of
the third month.
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.
If the Permittee monitors any pollutant more frequently than required by this permit, the results of
such monitoring shall be included in the calculation and reported data submitted on the DMR and AT
Form.
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.
Page 5 of 6

Permit NC0077143
(Continued A. (2) ACUTE TOXICITY PASS/FAIL MONITORING (QRTRLY))
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. For saltwater classified streams, a fathead minnow may be assigned as the acute testing species
if the salinity of the receiving stream at the point of discharge is <5 ppt throughout the tidally
influenced cycle. This determination may be based on the best professional judgment of DWR
staff or data collection provideproVided by the permittee and Yp-proved by DWR R s evaluation
should include vertical profiles of salinity/conductivity measurements at both high tide and low
tide over several 24 hr cycles.
2. 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 exposure specified by
the permit, the only difference between the tests being the organism used.
3. 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.
For items 2 and 3, 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 North Carolina Division of Water Resources, Environmental Sciences
Section at the address listed above.
Page 6 of 6

Upstream
Sample
Nest Carteret VTP
NC 2A.
Discharge
NCO077143
q�
r"�1�% { y .� ry /'mot-r'� •�
q.ir
Downstream
Sample
e
Loma
�:rrkftod
l /
USGS Quad: I31NW Salter Path, NC
Outfall Facili
Latitude: 34' 42' 57.9" N 340 42' 55.6" N
Longitude: 76' 58' 35.3" W 760 59' 7.9" W 4, AA
Stream Class: SA, HQW Facility Location
North
Subbasin: 03-05-03 HUC: 03020301 West Carteret WTP NC0077143
Receivine Stream: East Prona Sanders Creek Carteret Countv

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES PERMIT NC0077143
Facility Information
Applicant/Facility
Name:
West Carteret Water Corporation/West Carteret WTP
Applicant Address:
4104 NC Highway 24; Newport, NC 28570
Facility Address:
4104 NC Highway 24; Newport, NC 28570
Permitted Flow
No limit
Type of Waste:
Greensand filters, color filters (IE), softeners backwash wastewater
Facility/Permit Status:
Class I /Active; Renewal
County:
Carteret County
Miscellaneous
Receiving Stream:
East ProngSanders Creek
Stream Classification:
SA, HQW
Subbasin:
03-05-03
Index No.
20-36-6-1
Drainage Area (mi):
-
HUC:
03020301
Summer 7Q10 (cfs):
tidal
303(d) Listed?:
Yes, Loss of Use
Shellfish
Harvesting
Winter 7Q10 (cfs):
tidal
Regional Office:
Wilmington
30Q2 (cfs):
tidal
State Grid / USGS
Quad:
I31NW
Salter Path, NC
Average Flow (cfs):
tidal
Permit Writer:
Ron Berry
IWC (%): 1
100%
Date:
9/6/13 Revised
BACKGROUND
West Carteret Water Corporation operates a 2 MGD capacity potable water treatment and
distribution system in Carteret County. Backwash wastewater from greensand filters, water
softeners, and color filters (ionic exchange) are discharged intermittently to the East Prong
Sanders Creek, a class SA, HQW tidal water in the White Oak River Basin. East Prong Sanders
Creek is listed on the EPA approved 2012 303(d) list as impaired for shellfish harvesting.
Based on reported flows from June 2009 through May 2012, a maximum monthly average flow
of 0.096 MGD was determined and varied seasonally. Backwash of each greensand filter and
backwash/regeneration of each ion exchange unit is initiated manually as deemed necessary. The
operator collects aliquots to generate a composite sample during backwash events. The Permittee
submitted a proposed manual composite sampling procedure for Division approval with the
application. Backwash flows are measured and reported based on each unit's backwash meter
and event duration.
HISTORY
2007 — Except for changes indicated, the renewed permit continued requirements from 2006
modified permit (modification to address future discharge from greensand filters) which
applied 2004 WTP Strategy, changes were: TRC monitoring with limit and compliance
date was added; composite sampling compliance date was removed and became
effective.
2008 — Added four greensand iron filters and drying beds.
2010 — Several permit corrections issued: added TRC footnote narrative for reporting and
compliance, corrected acute toxicity special condition from limited to monitoring and
Fact Sheet
NPDES NC0077143
Page 1 of 4

designated test species as mysid shrimp, removed flow limit, and corrected DO sample
type to grab.
PROCESS
Multiple wells provide raw well water that passes through an aerator tower before collecting in a
detention tank. The collected well water is pumped from the detention tank, treated with
potassium permanganate, and continues thru iron filters, water softeners, and color ionic filters.
The filtered well water is further treated with ortho polyphosphate, chlorinated, and ammonia
before being distributed as potable water. The potable water system provides backwash water to
the iron filters. With the multiple filters and softener configuration, individual units are cycled
independently using non -potable water through their regeneration/backwash steps.
The intermittent iron filters backwash is directed to drying beds where the under drain system
directs wastewater to a sump pump that discharges via a pressure sewer to the outfall. As needed
the solids are removed from the drying beds and disposed of in a local land fill.
Brine is used to regenerate the water softeners and color ionic filters, and is mixed with potable
water. The intermittent rinse and backwash wastewater from the softeners goes directly to a
pump sump and from the color ionic filters passes through a sand filter lagoon and then to a
sump pump. The sand filter lagoon originally used to filter the softener wastewater is no longer
used. The two pump sump stations transfer the rinse and backwash wastewater to the outfall.
Two effluent wastewater lines are available to discharge to the outfall, are interconnected, and
can be isolated independently. The larger effluent line is currently set up to discharge all
wastewater to the outfall.
COMPLIANCE
There were no limit violations or incurred fines. There were a few monitoring parameters not
reported and late DMRs occurrences.
IMPAIRMENT AND PNA
East Prong Sanders Creek continues to be impaired based on the loss of use for shellfish
harvesting. A paragraph alerting the Permittee to the impairment and its impact will be included
in the cover letter. Sanders Creek is downstream and is a PNA, and has the same impairment.
PERMITTING STRATEGY
Data review
DMRs were reviewed for June 2009 to May 2012. DMR data is summarized in Table I below:
Table I *based on the monthly average
Total
Dissolved
Total
Flow*
TSS*
pH
Residual
Salinity
NH3-N
Dissolved
(MGD)
(mg/L)
(S.U.)
Chlorine
(myLn
)
(ppt)
(mg/L)
Solids
(µme-)
(mom)
Average
0.066
2.14
7.74
7.5
7.32
4.87
0.179
485.9
Maximum
0.10
7.6
8.2
50
9.9
42.8
1.19
3040
Minimum
0.04
< 1
6.9
< 1
5.9
< 1
< 0.04
321
Whole Effluent Toxicity
From 2007 there were 24 acute toxicity tests performed at 90% concentration using mysid
shrimp. There was one failed test. Not all toxicity tests were conducted on IE wastewater.
WTP Strategy and BPJ Guidance
The facility discharges to a SA, HQW saltwater stream and has completed one permit cycle
under the original 2004 WTP Strategy. There were no DO values reported less than 5.0 mg/L, no
Fact Sheet
NPDES NC0077143
Page 2 of 4

iron; -based additives are used, and the NH3-N values reported exceeded 1 mg/L. Based on 2009
WTP Strategy, US EPA memo, and BPJ guidance:
1) Effluent monitoring for total iron, total chloride, DO, and temperature will be removed.
2) Effluent TRC monitoring will be reduced to 2/month.
3) Effluent Flow monitoring will be reduced to 2/month with reporting of duration.
4) Effluent acute toxicity test special condition will be updated.
5) Instream monitoring for salinity, conductivity, and pH will be added.
6) Sample type for effluent TSS, TDS, salinity, and conductivity will be corrected to
composite.
7) Effluent turbidity will be added.
8) NH3-N monitoring will continue.
Because several parameters are pollutants of concern only for ion exchange based discharges,
footnotes and narratives will be added to clarify under which type discharge event sampling is to
occur. The initial draft effluent recording system requirement was removed. As requested by the
Permittee, the initial draft automatic composite requirement was re-evaluated and manual based
composite sampling will be allowed. However, the proposed sampling schedule does not comply
with the permit monitoring requirements so the Permittee will need to coordinate with the
Wilmington Regional office to develop an acceptable schedule.
Reasonable Potential Analyses (RPA)
Using the most recent 3 years of DMR data, US EPA approved RPA were performed on detected
toxicants of total copper, total lead, and total zinc to determine the potential to exceed WQS.
Total copper and total lead reported values were above their WQS, and total zinc showed
reasonable potential to exceed its WQS.
Total copper and total zinc monitoring are action level parameters and are evaluated in
conjunction with toxicity. There is no documented toxicity issue so monitoring will be reduced
to quarterly in conjunction with acute toxicity testing. Based on SA, HQW stream classification
total lead will have a daily acute limit based on V2 FAV applied and a monthly chronic limit
based on Aquatic Life WQS applied. Total lead monitoring will be increased to 2/month.
The draft permit reduced monitoring for TN and TP. However, upon further review of the
White Oak River Basin plan TN and TP monitoring are not required and will be removed in the
final permit.
Shellfish Sanitation Approval and Other Agencies
A copy of the draft permit along with an approval form will be submitted to NC Shellfish
Sanitation requesting their comments and approval. Other agencies will also be provided copies
of the draft for their review and commentary.
SUMMARY OF PROPOSED CHANGES
In keeping with Division strategies the following will be incorporated into the permit:
• Flow monitoring will be reduced to 2/month with reporting of duration.
• Effluent DO, TN, TP, Total Iron, Total Chloride, and temperature monitoring will be
removed.
• Effluent TRC monitoring will be reduced to 2/month.
• Effluent monthly Turbidity monitoring will be added.
• Effluent Salinity, Conductivity, TSS, and TDS sample type will be corrected to
composite.
• Effluent acute toxicity special condition and footnote, and supplement page narratives
will be updated.
Fact Sheet
NPDES NCO077143
Page 3 of 4

• Upstream and downstream monthly monitoring for salinity, conductivity, and pH Vill
be added.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: January 31, 2013
Permit Scheduled to Issue: September 2013
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please
contact Ron Be at (919) 7-6396 or email ron.berry@ 7/1
ov.
NAME: DATE: q
REGIONAL OFFICE COMMENTS
NAME: DATE:
SUPERVISOR: DATE:
Fact Sheet
NPDES NCO077143
Page 4 of 4

�,A Scyw - �,'� �iAr'1(,(,tI WY P 9f 7
Belnick, Tom v
From: Belnick, Tom
Sent: Tuesday, August 27, 2013 6:12 PM
To: Headrick, Hannah
Subject: RE: Project Number 14-0040 West Carteret Water Corp. (DWR#14492)
NPDES Comments:
It is not clear from the Environmental Scoping document whether this project will result in any anticipated changes to
the wastewater volume and/or concentrations in the discharge currently permitted by NPDES Permit NCO077143 (West
Carteret WTP). Please clarify.
Tom Belnick
Supervisor, NPDES Complex Permitting Unit
NCDWR/Water Quality Programs \
919-807-6390
E-mail correspondence to and from this address may be subject to the \
North Carolina Public Records Law and may be disclosed to third parties
From: Headrick, Hannah
Sent: Tuesday, August 27, 2013 12:15 PM
To: Belnick, Tom
Cc: Roddy, Jackie; Reid, Dianne
Subject: FW: Project Number 14-0040 West Carteret Water Corp. (DWR#14492)
Importance: High
Tom —
I need to hear back from you on this one by no later than 12 noon tomorrow. I go this to you on August 13 and
yesterday was the due date. I need the comments back by the date marked on the sheet to ensure that I have enough
time to work out Division differences internally —and you indicated on the phone to me that you and Jim may have
different input in regards to permit changes. If you are not going to be able to call Jim, I need to know so that I can start
planning how to resolve the conflicting comments.
The comments are due back to DENR August 29 (1 will be out that day), and I had planned on having my comments to
Jackie for her review and approval by now.
If you are not going to be able to make a deadline, please notify me a few days ahead of time so that I can try to get an
extension or at least plan out a strategy for resolving internal disagreement.
Thank you.
Hannah
Hannah Headrick
SEPA Coordinator
NC Division of Water Resources - Water Quality Programs
Physical location: 512 N. Salisbury Street, Raleigh, NC 27604 [Archdale Building - Office 6251]
Mailing address: 1617 Mail Service Center, Raleigh, NC 27699-1617
Phone: [phone] -- Fax: [phone]
http://Portal.ncdenr.org/web/wq/ps/ epa
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to
third parties.

From: Gregson, Jim
Sent: Friday, August 09, 2013 4:07 PM
To: Headrick, Hannah
Cc: Weaver, Cameron
Subject: Project Number 14-0040 West Carteret Water Corp.
Hannah,
Project will likely result in additional wastewater flow from the WTP and therefore may require a modification to the
NPDES Permit.
Jim Gregson
North Carolina Division of Water Resources
Water Quality Programs
Surface Water Protection Section
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Tel. [phone]
Fax [phone]
**E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.**

DWR-WQP Environmental Review Tracking Sheet
DENR # 14-0040
DWR-WQP # 14492
Date: Type: EA Scoping�J�
Environmental Sciences Section
Q
Eric Fleek - Biological Assesment Unit I we'v `��% ^
Steve Kroeger - Ecosystem Unit
Cindy Moore - Aquatic Toxicology Unit
Jason Green - Intensive Survey Unit
Wetlandspnd Stoormwater Branch
(
_ DOT'
_ Jennifer Burdette - Wetlands
Julie Ventaloro - Water Supply
Point Source Branch Q
Tom Belnick - NPDt
ES � � o
Deborah Gore - PERCS Unit �2 `
Aquifer Protection Section
_ Keith Larrick - Animal Feeding Operations Unit
Jon Risgaard - Land Application Unit
_ Evan Kane - Groundwater Planning Unit
Debra Watts - Groundwater Protection Unit
Ground Water Investigation Unit
Planning Section
Basinwide Planner
Classification and Standards Unit
Rich Gannon - Non -Point Source Planning Unit
Kathy Stecker- Modeling and TMDL Unit
Others within DWR-WQP
A copy of the environmental document for the project described below is attached. Subject to the requirements
of SEPA, you are being asked to review the document for potential significant impacts to the environment that
are pertinent to your jurisdiction, level of expertise, or permitting authority. Please return this completed form
along with any written comments by the dale indicated. Thanks for your help.
"`•"'If an extension is needed, contact Hannah Headrick prior to the response deadline."""`
Project Description Response Deadline (►
West Carteret Water Corporation Phase V - improvements to elevated tanks, treatment plant, system distribuli n, power
generation, corporate office, groundwater wells, and SCADA system
E__�J No Comment
JComments Attached and emailed
Signature Date
Return To:
Hannah Headrick: phone: [phone]: fax: [phone], [e-mail];
Office 625 J Archdale Bldg., DWR-WQP Planning Section, 1617 MSC, Raleigh, NC 27699-1617
Notes:

Headrick, Hannah
From:
Gregson, Jim
Sent:
Friday, August 09, 2013 4:07 PM
To:
Headrick, Hannah
Cc:
Weaver, Cameron
Subject:
Project Number 14-0040 West Carteret Water Corp.
Hannah,
Project will likely result in additional wastewater flow from the WTP and therefore may require a modification to the
NPDES Permit.
Jim Gregson
North Carolina Division of Water Resources
Water Quality Programs
Surface Water Protection Section
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Tel. [phone]
Fax [phone]
**E-mail correspondence to and from this address may be subiect to the
North Carolina Public Records Law and may be disclosed to third parties.**

REQUEST FOR ENVIRONMENTAL SCOPING f
For use by USDA -Rural Davrl ;prnent in gathering infornnation in preparation, of an
Environmental Review
Pali 1 Type or Arini in Black Inkltcvie�viGg
1. PROJECT INFORMATION
Legal ApplicantlRecipient:
West Carteret Water Corporation
StreetlPO Box: 4102 Hwy 24
Ury Newport
State.NC
Zip : 28570
County. Carteret
ontact arson: Lisa Smith -Perri
Phone[phone]
Type of Appti=nURedpient:
(Enter Appropriate Letter)
Nil
A. State E. Interstate I. State Controlled Institution of Higher Learning M. Non-ProTd Organb2tion
B. County F. Interrnunicipal J.
Private University
N. Other (Speci;yk ,
C. Municipal G. Special District K. Indian Tribe
D. Township H. Independent School Dist. L. Individual
rojectTitle:
Project Start Date. Duration:
West Carteret Water Corp. Phase
V Water System Improvements
2014 124: months
Area of Impact (cities, counties, etc.):
Estimated number of Has project been reviewed before by ;
Carteret County
persons benefiting:
2500
State Clearinghouse:
a NO ❑ YES project
Federal Agency to ReceiveType of Application: (Enter Appropnatq Lettec) Request (name & complete address): a
a_ New b. Revision c. Coniinuadon
US Department of Agriculture
Rural Development
Kinston Office
PO Box 6189
Kinston, NC 28501-0189
Ill. PROJECT NARRATIVE (Purpose, Expected Accomplishments, Major Tasks — Attach Estimated Line Item Budget)
Vilest Carteret Water Corporation Phase V project includes improvements to the elevated tanks, treatment plant,
system distribution, power generation, corporate office, groundwater wells, and SCADA system.
Improvements to WCWC elevated tanks include a new 750,000 gallon tank and the addition of mixers in two
existing tanks. Treatment plant improvements include the expansion of the chlorine and lab room at the 4xisting
facility. Other improvements to the treatment plant include the addition of a new aerator, softener vessel, land
color vessel. Improvements to the water distribution include installation of a water main that will serve as a
transmission line from Hwy 24 to an existing tank. An interconnection of water systems is also being proposed
between WCWC and Morehead City. Other improvements to the water distribution system include the expansion
of service areas to numerous subdivisions and the completion of the radio read meter change -out. Impro ` ements
to the power generation include the addition of a new generator at the corporate office, upgrade of the exiting
plant generator, and the placement of a portable generator at the well field. Improvements to the corporate office
include the addition of a new elevator for access to second floor, and the addition of rear parking and a driveway.
Two new test wells in preparation for two new production wells are being proposed for this project and
improvements to one existing well, all located in the Croatan National Forest. Improvements to the SCADA system
include new well controls, softener and color vessel controls, and the addition of a radio and controls at the new
tank location.
Name & Title (Gertifying Representati,
Michelle S. Clements, PE
IF PROJECT INCLUDES CONSTRUCTION/ LAND ALTERATION COMPLETE PART 2 ALSO
--Submit sixteen (16) Copies incl. North Carolina Department of Administration
8'AX 11 project location map State Clearinghouse
(as described on next page) To: 130t Mail Service Center
Raleigh. North Carolina 27699-1309
[phone]
Pam i

54�16 d--d2 F, ( I'
/'J(00 C�-3
Berry, Ron
From: lisa.smithperri@wcwc. biz
Sent: Thursday, June 20, 2013 3:27 PM
To: Berry, Ron
Cc: Hunkele, Dean; Gregson, Jim; WCWC-Bryan; TEG-Michelle Clements; Coburn, Chad
Subject: Re: Response to your March 1, 2013 comment letter for your NPDES draft permit
NCO077143
Attachments: 2013-06-20 To Ron Berry.docx
Thank you, Mr. Berry, for your email last month. I have cut and pasted those into a Word document and added comments/questions
in BLUE.
We all have one goal. That is to ensure that WCWC is being as prudent as possible with all discharge. We are not challenging the
requests of your department to avoid meeting testing expectations, but, rather believe that prudence also extends to the use of water -
user fees. We have never spared any expense when the methods for gaining information or developing treatment measures were
outside the limits of what our staff or plant could handle. In this case, we do believe that the expense of a composite sampler can be
avoided. Because our backwashes are intermittent, but our flow is constant during•that period of time that we have discharge, we can
effectively and efficiently grab samples needed, if accepted by your department. We also believe that because the flow is constant, we
should be able to easily provide post lift station discharge flow rates. Of course, a meter can be installed as your requested.
The time period that you have allowed is generous, but, in the end, it will still be costly as it relates to the number of samples needed
each month and need. We assume that because we are not a true wastewater facility, we still need to adhere to the same guidance
documents. In any case, we would appreciate you reviewing this one last time.
Questions should be directed to Bryan Wilson at [phone].
Lisa D. Smith -Perri, GM/ED
West Carteret Water Corporation
4102 Hwy 24, Newport, NC 28570
O - [phone] Ext 20
M - [phone]
F - [phone]
lisa.smithoerritWwcwc. biz
www.wcwc.biz
--Original Message
From: Berry, Ron
Date: 6/1712013 10:32:30 AM
To: Lisa Smith -Perri
Cc: Hunkele, Dean; Gregson, Jim; Bryan Wilson; Michelle Clemets
Subject. Response to your March 1, 2013 comment letter for your NPDES draft permit NCO077143
Ms. Smith -Perri:
The Division has reviewed your March 1, 2013 comments on West Carteret Water Corporation WTP January
30, 2013 NPDES draft permit. The following response is to address all your comments, and to provide further

The Division does not expect nor mandate operation for a permitted facility strictly to
initiate a discharge for sampling purposes. If your seasonal operation does not
provide sufficient sampling opportunities to meet permit requirement then you should
contact Wilmington Regional Office/Surface Water Protection for guidance.
With the above correction and clarifications, 2/month sampling should no longer be
an issue and is not restrictive to facility operations.
[Regarding samples, for clarification, the TSS was originally 2 grab samples per
month and is now listed as composite. Is it grab or composite? Previously, the lead
was 1 composite sample per month and is now listed as 2. Is it 1 or 2?1
NOTE: Historically there have been compliance issues with TRC requirements. What to sample
and when to sample should be clearly understood. [Compliance issues: Is this in reference to
systems in general or WCWC specifically?]
otal Nitrogen and Total Phosphours Monitoring [OK]
After further review of the nutrient strategy for this portion of the White Oak River Basin, your facility is
not required to continue monitoring for nutrients. Therefore, as a technical correction Total
Nitrogen and Total Phosphorus monitoring requirements will be removed.
Sampling Type - Continuous Effluent Recording and Effluent Composite Sampling
All WTP facilities in North Carolina with a wastewater discharge monthly average flow in excess of
50,000 gpd are required to install a dedicated calibrated continuous effluent recording system for
ES determining total reported discharge flow. [In reference to this statement, it is my understanding that
,NQ1 the 50,000 gpd reference is in the WTP strategy, but not in the rules, and also applies to membrane and
conventional plants. Can you confirm whether or not this includes greensand and ion exchange?] Also, a
� facility with your design wastewater sources is required to sample specific effluent parameters as
composites. To provide the necessary time to design, procure funds, and install the meter recording
system and a composite sampler, the Division included a compliance date 18 months from the effective
date of the permit. [The .0500 rules state that the Director can approve "a device or method" for
determining flow and, as permitted in the rules, we are again requesting consideration by the Director
to (1) use the design flow of the lift station pumps as provided by an engineer or (2) install a
flow/totalizing meter as you requested, while creating a manual composite sample by using the
accumulation of grab samples as defined in the sampling procedures in 15A NCAC 02B .0503 (4 b, c, or
d).]
Alternative metering such as internal backwash meter/totalizer is not sufficient and does
not meet Division requirements.
Some of your effluent limited parameters require composite samples as well as some of
your monitored effluent toxicant parameters, and toxicity test. Manual composite and
alternating manual composite by discharge source are not acceptable as a permanent
substitute for automated composite sampling.
Automated effluent composite sampling is only governed by the actual effluent flow being
discharge to the receiving stream at that point in time so the rate and/or time
that wastewater drains from a basin is a function of how you operate your facility and/or
the performance criteria for that basin operation. In some cases, multiple sources may be
generating wastewater at the same time which is considered a normal operational event.
The Division does not expect nor mandate operational philosophies for a permitted facility
other than they must not result in non-compliance in your NPDES permit limits nor
conflict with permit monitoring and reporting requirements nor result in unlawful

Attachment to Email to Ron Berry Dated June 20, 2013
COPY OFRESPONSE FROMRONBERRY— DATED MARCH] 7,2013
SEE COMMENTS/QUESTIONS IN BLUE
Subject. Response to your March 1, 2013 comment letter for your NPDES draft permit
NC0077143
Ms. Smith -Perri:
The Division has reviewed your March 1, 2013 comments on West Carteret Water Corporation WTP
January 30, 2013 NPDES draft permit. The following response is to address all your comments, and to
provide further clarification, technical corrections to the draft permit, and additional information on
the new requirements that will be in your final permit.
/impairment East Prone Sanders Creek
The impairment narrative is part of every permit cover letter that is sent to a Permittee when that
Permittee's receiving stream is on the US EPA impairment list. The intention of the narrative on
impairment is to alert the Permittee that the facility discharge may be scrutinized further if considered a
contributor. It may, or as in this case at this time may not, have a specific influence on the permit
requirements. NC Division of Marine Fisheries/Shellfish Sanitation as well as other interested agencies
were provide a copy of your draft and asked for recommendations. No recommendations were made. At
this time there are no specific requirements in your permit as result of this impairment.
/Total _Residual (TRCI
Your current permit, per our records, requires weekly monitoring with a daily limit of 13 µg/L. As you
stated it was non-specific to which backwash event must be monitored. [Thank you for the correction to
my letter and reduction. I stated in my earlier letter that there was no reduction. It was/is TSS that is
required biweekly, but we have been taking that sample weekly — not TRC.j
- TRC requirements apply to both domestic Waste Water Treatment Plants where the effluent
is treated with a chlorine additive, and to Water Treatment Plant where chlorinated potable
water is the source for backwash, rinse, or is part of the brine. TRC is a US EPA listed toxicant
and a daily limit is required.
- Per our latest WTP strategy for your type facility, TRC only needs to be monitored 2/month.
Therefore, this would be a reduction in monitoring frequency compared to weekly.
- As you pointed out potable water is used in the brine solutions and makes the brine
wastewater discharge events subject to the TRC limit. A technical correction will be
made (footnote 3) to restore non-specific event monitoring to facilitate sampling from
normal operations. When possible, the Division is requesting at least one of the
samples be taken while greensand backwash is the effluent primary discharge
source.

discharges. Maintenance events are handled separately and if in doubt should at a
minimum be reviewed with the Wilmington Regional Office/Surface Water Protection.
If more than 18 months are needed to have a calibrated effluent flow recording system with
automated proportional composite sampler operational then please provide justification for
an extended compliance date. The Division will review the justification and an appropriate
compliance date will be determined.
SamplingTimes—Instream 10k1
For WTP facility that discharge softener and/or softener polishing (color) wastewater (backwash, rinse,
spent brine), instream monthly monitoring for pH, salinity, and conductivity are required by the Division.
Since instream monitor for pH, salinity, and conductivity are only pertinent to softener wastewater
discharge events then they must be done while a softener wastewater source is being discharged.
- It is understood that on any given softener wastewater discharge event it may be mixed
with other wastewater sources, the requirement to sample instream during softener
discharge events does not preclude other wastewater sources from being present. The
intent is to collect instream samples during the occurrence of softener wastewater being
present in the discharge. The Division does not expect nor mandate operational
philosophies for a permitted facility other than they must not result in non-compliance
in your NPDES permit nor conflict with permit monitoring and reporting requirements
nor result in unlawful discharges.
Supplemental to Permit Cover Sheet — Corrections [Okl
The intent is to have an accurate description of process related equipment to assist with facility audits.
We appreciate your input to correct and clarify items listed or not listed in the description.
- Will correct number ofgreensand filters to 4.
- Will amend "(narrative)' for 52 ft x 52 ft filtering lagoon for softener wastewater with pump
station to read "(filter bypassed but pump station active)'.

Berry, Ron
From:
Hunkele, Dean
Sent:
Friday, May 10, 2013 1:07 PM
To:
Berry, Ron; Tharrington, Tom
Cc:
Gregson, Jim
Subject:
RE: Response to March 1, 2013 comments on NPDES draft permit for West Carteret Water
Corporation WTP
Attachments:
Dean Hunkele.vcf
Ron,
The whole flow proportional composite sampling issue and flow meter issue was discussed at length with them when I
inspected them and at times afterwards, thus should not be a surprise. I told them to expect a change and even offered
that they change before the application was submitted. Thus think 18 months is fine as they can budget for it in this
and/or next budget year.
Another alternative to all this is to have the permit have 3 outfalls like many other permits we have with separate
required parameter monitoring & analysis depending on the wastewater source. It would allow use of the internal
process flow meters if they can be calibrated and connected to an automated composite sampler. I think this should be
offered and perhaps give them a glimpse of how that permit might look & read.
Another alternative is like others than have lagoon or tank systems whereby all these backwash process comingle and
they measure flow & sample effluent that exits the structure when new wastewater is added. This should be
mentioned, but this might requirement a longer compliance schedule.
Dean Hunkele
Senn Enworaba=1 Spedarst
NC DENR- Division of Water
Dean.Hunicei rtdwv.wv
Wilmington Regional Office
Rcrepwn (910)7967215
Direct [phone]
FM [phone]
127 Cartier Drive Enension
Won, NC 28405
ww w, ncwateroualdv.eom
From: Berry, Ron
Sent: Thursday, May 09, 2013 1:47 PM
To: Hunkele, Dean; Tharrington, Tom
Subject: Response to March 1, 2013 comments on NPDES draft permit for West Carteret Water Corporation WTP
Dean & Tom:
This is my intended response to West Carteret Water Corporation March 1, 2013 draft comment letter (I attached letter
in case you need to see again). Please review and provide any additional comments.
Thanks, Ron
Ms. Smith -Perri:
The Division has reviewed your March 1, 2013 comments on West Carteret Water Corporation WTP January 30, 2013
NPDES draft permit. The following response provides technical corrections, the Division position, and clarification to
the new requirements in your permit.

Impairment East Prong Sanders Creek
The intention of the narrative on impairment is to alert the Permittee that the facility discharge may be scrutinized
further if considered a contributor. It may, or as in this case may not, have a specific influence on the permit
requirements. NC Division of Marine Fisheries/Shellfish Sanitation as well as other interested agencies were provide a
copy of your draft and asked for recommendations. No recommendations were made. At this time there are no
requirements in your permit as result of the impairment.
Total Residual Chlorine (TRC)
Your current permit, per our records, requires weekly monitoring with a daily limit of 13 µg/L. As you stated it was non-
specific to which backwash event must be monitored.
- TRC requirements apply to both domestic Waste Water Treatment Plants where the effluent is treated with
a chlorine additive, and to Water Treatment Plant where chlorinated potable water is the source for
backwash, rinse, or is part of the brine. TRC is a EPA toxicant and a daily limit is required.
- Per our latest WTP strategy for your type facility, TRC only needs to be monitored 2/month. Therefore, this
would be a reduction in monitoring frequency compared to weekly.
- As you pointed out potable water is used in the brine solutions and makes the brine wastewater
discharge events subject to the TRC limit. A technical correction will be made (footnote 3) to
restore non-specific event monitoring to facilitate sampling from normal operations. When possible,
the Division is requesting at least one of the samples be taken while greensand backwash is the
effluent primary discharge source.
- The Division does not expect nor mandate operation for a permitted facility strictly to initiate a
discharge for sampling purposes. If your seasonal operation does not provide sufficient sampling
opportunities to meet permit requirement then you should contact Wilmington Regional
Office/Surface Water Protection for guidance.
- With this correction and clarification, 2/month sampling is no longer an issue and is not restrictive to
facility operations.
Total Nitrogen and Total Phosphours Monitoring
After further review of the nutrient strategy for this portion of the White Oak River Basin, your facility is not required to
continue monitoring for nutrients. Therefore, as a technical correction Total Nitrogen and Total Phosphorus monitoring
requirements will be removed.
Sampling Type - Continuous Effluent Recording and Effluent Composite Sampling
All WTP facilities in North Carolina with a wastewater discharge monthly average flow in excess of 50,000 gpd are
required to install a dedicated continuous effluent recording system for determining total reported discharge flow. Also,
a facility with your design wastewater discharge is required to sample specific effluent parameters as composites. To
provide the necessary time to design, procure funds, and install the meter recording system and a composite sampler a
compliance date 18 months from the effective date of the permit was provided.
- Alternative metering such as internal backwash meter/totalizer is not sufficient and does not meet Division
requirements.
Some of your effluent limited parameters require composite samples as well as some of your potential
effluent toxicant parameters, and toxicity test. Manual composite and alternating manual composite by
discharge source are not acceptable as a permanent substitute for automated composite sampling.
Automated effluent composite sampling is only governed by the actual effluent flow being discharge to the
receiving stream at that point in time so the rate and/or time that wastewater drains from a basin is a
function of how you operate your facility and/or the performance criteria for that basin operation. The
Division does not expect nor mandate operational philosophies for a permitted facility other than they
must not result in non-compliance in your NPDES permit nor result in unlawful discharges.
If more than 18 months are needed to have a calibrated effluent flow recording system with automated
proportional composite sampler operational then please provide justification for an extended compliance
date. The Division will review the justification and an appropriate compliance date will be determined.
Sampling Times - Instream

4102 Hwy 24
Newport, NC 28570
[phone]
[phone] Toll Free
[phone] Fax
[e-mail] E-mail
March 1, 2013
Mr. Ron Berry, Engineer
NPDES Complex Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699
West Carteret Water Corporation
A non-profit water corporation serving western Carteret County
SUBJECT: Renewal Permit (Draft)
NPDES Permit NC0077143
West Carteret Water Corporation WTP
Carteret County
Dear Mr. Berry:
West Carteret Water Corporation, in response to receipt of our revised permit dated January 30, 2013
and received February 4, 2013, appreciates the opportunity to address a few items. First, we fully
understand that because our plant is listed as a facility that discharges to a 303(d) Impaired Waters
List for shellfish harvesting, testing requirements are more stringent or complicated. WCWC does
recognize that it would be less than prudent to not want to participate in any testing plan that may
prevent stream impairment. However, the discharge point is not direct and, as a matter of feasibility,
we would like to be assured that there are not more efficient and effective ways to provide the
information required that would not create an undue burden both financially, as well as, strategically
(without interruption or changes in our treatment process).
Please reference Summary of Changes in the drafted permit letter:
1. -
2. Total Residual Chlorine monitoring will be reduced to 2/month.
a. There is no reduction. Our original permit requires 2/month, which was nonspecific
to type of backwash, e.g., color, softening, or iron removal. However, we test weekly
(4/month).
b. In reference to footnote 3 under Effluent Limitations and Monitoring Limitations, we
do not directly add chlorine to our discharge. Our brine solution used in the
regeneration process of color and softening vessels is a brine solution made from our
potable water, which contains chlorine, of course. In the backwash cycle of our iron
removal vessels, we use potable water as well. Would using potable water not be
considered differently than a sewer plant that adds chlorine directly to their
discharge?
c. TRC samples were not restricted to iron/greensand backwashes in the past. Why now
since our softener and color backwash processes use brine solution that is mixed with
the same potable water?

d. As noted above, the drafted permit requires 2 samples per month from iron
backwash/greensand backwashes only. It should be noted that WCWC is a very
seasonal area and, therefore, our plant operates in the same way. The plant and iron
filters are backwashed only once per month during the winter (roughly November -
April), depending on the amount of water treated. To backwash for the purpose of
getting a chlorine residual would be a waste of resources on all levels. One backwash
is approximately 500,000 gallons and 8 hours of manned time. During these low peak
months, can we get a reduction to one sample per month or can the second sample be
taken during a color or softening backwash?
3. Total Phosphorus and Total Nitrogen will be reduced to quarterly. We appreciate the
reduction, but have wondered why we are required to test for Nitrogen in the past or future?
4. —
5. —
6. —
7. —
8. Effluent flow sample type will be changed to recording...
a. Strategically, it will be difficult to install the composite sampler besides the fact that
it will be very expensive. This plant is manned 24-7, but discharge is very
intermittent and definitely not 24-7. Can we continue to prepare composite samples
manually or is it a documented requirement by your Division to install a composite
sampler station?
b. Also, please elaborate on the recording meter. Currently, each of our discharges
(softening, color, and iron) is metered separately and provides gpm along with
totalizer readings.
Additional Strategic/Treatment Issues:
A. Composite Sampler Considerations:
a. As noted previously, WCWC does not inject chlorine into our backwash water,
although the brine solution is made using potable water that is chlorinated. Our
system backwashes based on the amount of water that has been treated in each vessel,
whether iron, color, or softening vessels. As such, we are a very seasonal plant and do
not unnecessarily backwash during off-peak months. Thus, saving on all resources,
including water.
b. Our plant is operated by personnel on a 24-7 basis and available to grab samples to
prepare a composite sample.
c. Generally, WCWC backwashes 4 color vessels per month (1 per week) and 1 to 2
iron vessels per month as compared to 120+ softener vessels per month.
d. Color, softener, and iron backwashes are completed separately.
e. After a color/iron backwash, the basins will slowly drain, creating a detention time of
several hours. Some of the testing parameters in the new permit are specific to color,
softening, or iron backwash. If processes are delayed to allow a specific sample to be
taken, it will interfere with normal water plant operations/treatment. Basically, no
other filters could be backwashed while the basins are draining, which would affect
water quality. We need to come to some type of agreement to work around any affect
to water quality. (We are making an assumption that the water in the basins would
continue to be sampled for that specific process.)

f. In the past, composites/toxicity samples were based on percentage for the year and
split as such between color, softening, and iron removal discharge. Will this still be
the case for the new discharge permit?
B. Supplement to Permit Cover Sheet Corrections/Clarifications:
a. WCWC operates four (4), not three (3), greensand iron filters.
b. In reference to the 52 ft X 52 ft softening filter, the pump station is active, but the
lagoon is bypassed as per past approval.
Again, it is not WCWC's intention to circumvent the permitting requirements, but we must ask if
there is some scientific data or monitoring data that indicates that our discharge is causing or will
cause an impairment? We will do anything necessary and spend any funds necessary to comply, but
our Board would want to know with assurance that we are doing so as efficiently as possible. Our
request to meet and discuss this in person still stands, if needed. We feel that than open discussion
would better enlighten us all.
Sincerely,
A.d'�j. A. @?9Z/-- k4-:
Lisa D. Smith -Perri, ED/GM
Cc: Dean Hunkele, PE, DENR (Via email)
Tom Tharrington, PE, DENR (Via email)
Michelle Clements, PE, The East Group (Via email)
Bryan Wilson, System Mgr/ORC, WCWC
File WI
&I.e O

CARTERET COUNTY,
NORTH CAROLINA
AFFIDAVIT OF PUBLICATION
Before the undersigned, a notary public of said County and State, duly commis-
sioned, qualified, and authorized by law to administer oaths, personally appeared
Misty L. puff who being
first duly sworn, deposes and says that he (she) is Clerk
(Owner, partner, publisher or other officer or employee
authorized to make this affidavit)
of THE CARTERET PUBLISHING CO., INC., engaged in the publication of a
newspaper known as CARTERET COUNTY NEWS -TIMES, published, issued,
and entered as second class mail in the Town of Morehead City, in said County
and State; that he (she) is authorized to make this affidavit and sworn statement;
that the notice or other legal advertisement, a true copy of which is attached here-
to, was published in CARTERET COUNTY NEWS -TIMES on the following
dates: 02/01 /2013
and that the said newspaper in which such notice, paper, document, or legal adver-
tisement was published was, at the time of each and every such publication, a news-
paper 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 mean-
ing of Section 1-597 of the General Statutes of North Carolina.
This 1st day of February, 2013
ignatttr of person makin a vit)
Sworn and subscribed to before me, this:
N'O'TARV
pugs,®a+ 2'
Notary
My cV%WiQRWs November 11, 2017
North Carolina
Environmental Management
Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notice of Intent to Issue a NPDES Wastewater Permit The
North Carolina Environmental Management Commission
proposes to Issue a NPDES wastewater discharge permit to
the parson(s) listed below.. Written comments regarding the
proposed permit will be accepted until 30 days after the
publish date of this notice. The Director of the NC Division
of Water Quality (DWC) may Wald a publ4- hearing should
there be a significant degree of public interest. Please mail
comments and/or information requests to DWQ at the
above address. Interested persons may visit the DWO at
512 N. Salisbury Street, Raleigh, NO to review information
on file. Additional information on NPDES permits and this
notice may be found on our website:
httpJ/portal.nodenr.org/web/wglswp/ps/npdes/dalendar. or
by calling [phone].
West Carteret Water Corporation requested renewal of
permit NCO077143 for West Carteret Water Corporation
WTP in Carteret County;, this permitted facility discharges
treated iron filters and ionic exchangers backwash
wastewater to the East Prong Sanders Creek, White Oak
River Basin
F1
13102343
10515039

NCDEHR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Pat McCrory Charles Wakild, P.E. John E. Skvarla, III
Governor Director Secretary
January 30, 2013
MEMORANDUM
To: Patti bowler
Division Marine Fisheries/Shellfish Sanitation
Morehead City
From: Ron Berry
NCDBNR I DWQ I NPDES -- Complex Giroup
Central Raleigh Office
Subject: Review of draft NPDES Permit NCO077143
West Carteret WTP
Carteret County
Please complete this form to indicate your agency's position or viewpoint on this draft peinnit and return to xne
by February 21, 2013. If you have any questions on the draft permit, please contact me at telephone mir ber
[phone] or via e-mail at ron.berry(coicdenr.6ov,
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.
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:
t ! 3
a !�
Stgnc.d .. �'�Date: _ . --
1617 Mall Service Cantor, Raleigh, North Carolina 27699-1617
l-ocatton: 512 N. Salisbury St, Raley h, Notth Carolina 27604 t)11C
Phone: [phone] FAX, 919-807-6492 'Ui Ca olhia
Internal: www.ncwatorquality.org
An Equal Opportunity 1 Atflamlivo Action Empioyor l yiJ

West Carteret WTP REASONABLE POTENTIAL ANALYSIS Outfall 00'I
NCO077143 Qw = MGD
Qw (MGD) =
I Q 1 OS (cfs) =
7Q 1 OS (cfs) =
7QIOW (cfs) =
30Q2 (cfs) =
Avg. Stream Flow, QA (cfs) =
Receiving Stream:
NO PERMITTED FLOW
Tidal, IWC =100%
Tidal, IWC =100%
Tidal, IWC =100%
Tidal, IWC =100%
Tidal, IWC =100%
WWTP/WTP Class:
IWC @ 1Q10S = 100.00%
IWC @ 7QIOS = 100.00%
IWC @ 7Q 1 OW = 100.00%
IWC @ 30Q2 = 100.00%
IWC @ QA = 100.00%
Stream Class: SA, HQW
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS HOW OR ORW.
CHRONIC TEST CONCENTRATION = DEFAULT %
=90%
PARAMETER
STANDARDS & CRITERIA (2)
N
REASONABLE POTENTIAL RESULTS
E
(
}
a
z
NC WQS / Applied '/2 FAV /
Max Pred
n # Det. Allowable Cw
Chronic Standard Acute
Cw
Acute: 5.8
RPA for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Copper (AL)
NC
1.5 SW 5.8
ug/L
36 10
87.8
_ _ _ _ _ _ _ _ _ _ _ _ _ _
Monitoringzin conjunction with TOX Test _ _ _
Chronic: 1.5
PA
Rfor AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
36 values > Allowable Cw
Monitoring in conjunction with TOX Test
Acute: 110.5
RPA for non -AL - apply Monthly Monitoring
Lead
NC
12.5 S W 110.5
ug/L
36 2
30.10
_ _
with Limit_
_ _ _ _ _ _ _ _
Chronic: 12.5
_ _ _ _ _ _ _ _ _ _ _
RPA for non -AL - apply Monthly Monitoring
1 values > Allowable Cw
with Limit
Acute: 48
RPA for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Zlnc (AL)
NC
43 SW 48
ug/L
36 11
81.72
Monitorin�in con.....................unction with TOX Test
_ _ _ _ _ _ _ _ _ _ - _ _
Chronic: 43
RPA for AL(Cu,Zn,AgFe,CI) - apply uarterly
No value > Allowable Cw
Monitoring in conjunction with TOX Test
2012 RPA-Saitwater,rpa
Page 1 of 1 1/17/2013

REASONABLE POTENTIAL ANALYSIS - DATA
Copper (AL)
Lead
Zinc (AL)
Date
Data
BDL=112DL
Results
•
Date
Data
BDL=1/2DL
Results
• •
Date
Data
BDL-112DL
Results
1
6/3/2009
<
10
5
Std Dev.
7.1212
1
6/3/2009
<
5
2.5
Std Dev.
2.2581
1
602009
<'
10
5
Sid Dev.
7.2419
2
7/9/2009
<
10
5
Mean
8.5556
2
7/9/20D9
<
5
2.5
Mean
3.0276
2
7/9/2009
<
10
5
Mean
8.8889
3
8/5/2009
<
10
5
C.V.
0.8323
3
8/5/2009
<
5
2.5
C.V.
0.7458
3
8/5/2009
17
17
C.V.
0.8147
4
9/2/2009
10
5
n
36.0
4
9/2/2009
5
2.5
n
36
4
9/2/2009
<
10
5
n
36
5
10/6/2009
<i
10
5
5
10/6/2009
<
5
2.5
5
10/6/2009
10
5
6
1V4/2009
<
10
5
Mull Factor =
2.3
6
11/4/2009
<
5
2.5
Mull Factor =
2.1500
6
11/4/2009
<
10
5
Mull Factor =
2.2700
7
122/2009
<
10
5
Max. Value
38.0 ug/L
7
122/2009
<
5
2.5
Max. Value
14.0 ug/L
7
12/2/2009
<
10
5
Max. Value
36.000 ug/L
8
1/5/2010
<
10
5
Max. Pred Cw
87.8 ug/L
8
1/5/2010
<
5
2.5
Max. Pred Cw
30.1 ug/L
8
1/6/2010
13
13
Max. Pred Cw
81,720 ug/L
9
2/3/2010
<
10
5
9
2WO10
<
5
2.5
9
2/3/2010
<
10
5
10
3/3/2010
38
38
10
3/3/2010
<
5
2.5
10
3/3/2010
<.
10
5
11
4/1/2010
10
5
11
4/1/2010
<.
5
2.5
11
4/1/2010
c.
10
5
12
5/4/2010
24
24
12
5/42010
<
5
2.5
12
5/412010
<
10
5
13
6/32010
12
12
13
6/3/2010
14
14
13
6/3/2010
<
10
5
14
7182010
<
10
5
14
7/8/2010
<
5
2.5
14
7/8/2010
11
11
15
8/3/2010
<
10
5
15
8l3/2010
<
5
2.5
15
8/3/2010
<
10
5
16
9/92010
17
17
16
9/9/2010
10
10
16
9/9/2010
<
10
5
17
10/11/2010
<.
10
5
17
10/11/2010
<
5
2.5
17
10/11/2010
<
10
5
18
112/2010
<
10
5
18
11/3/2010
<
5
2.5
18
11/3/2010
16
16
19
12/8/2010
11
11
19
12/82010
<
5
2.5
19
12/8/2010
<.
10
5
20
1/5/2011
<
10
5
20
1152011
<
5
2.5
20
1/5/2011
<
10
5
21
222011
<
10
5
21
2/2/2011
<
5
2.5
21
22/2011
10
5
22
3112011
16
16
22
3/12011
<
5
2.5
22
3/1/2011
13
13
23
4/6/2011
<
10
5
23
4/62011
<
5
2.5
23
4/6/2011
27
27
24
5/4/2011
17
17
24
5/4/2011
<
5
2.5
24
5/4/2011
20
20
25
6/9/2011
11
11
25
6192011
<
5
2.5
25
6192011
10
5
26
7/512011
<
10
5
26
7152011
<
5
2.5
26
7/52011
10
5
27
8/3/2011
<,
10
5
27
8/32011
<
5
2.5
27
8/3/2011
10
5
28
SIW2011
<
10
5
28
982011
<
5
2.5
28
9WO11
11
11
29
10/12/2011
c
10
5
29
10/12/2011
<
5
2.5
29
10/12/2011
10
5
30
11/3/2011
14
14
30
IIIW2011
a
5
2.5
30
11/3/2011
36
36
31
12/6/2011
10
5
31
12/6/2011
<
5
2.5
31
12/6/2011
12
12
32
IIW2012
18
18
32
IM012
<
5
2.5
32
1/32012
19
19
33
2/15/2012
<'
10
5
33
2/15/2012
<
5
2.5
33
2/15/2012
10
5
34
317/2012
<
10
5
34
3r7/2012
<
5
2.5
34
3/7/2012
10
5
35
413/2012
<.
10
5
35
4/3/2012
<
5
2.5
35
4/3/2012
10
5
36
1/3/2012
10
5
36
5/3/2012
<
5
2.5
36
5/3/2012
10
5
37
37
37
2012 RPA-Saltvrater,data
Date)

Berry, Ron
From: Berry, Ron
Sent: Monday, February 11, 2013 8:36 AM
To: Hunkele, Dean
Subject: RE: Region copy draft permit and fact sheet for West Carteret WTP NC0077143
Dean,
According to the ORC they only use potable to backwash the iron filters but there is a TRC limit assigned to Outfall 001
regardless of the source.
The plan is to have a dedicated effluent meter and auto composite sampler installed, thus maintain one outfall. My
suggestions for manual sampling in the interim is to be sure the softener and color filters wastewater is being captured
for the quarterly events specifically toxicity. The ORC past practice has been to collect small samples over time to
generate a composite. I would think all you need to do is tell him what to sample, over what length of time, and size of
each grab sample to generate composite.
Thanks for the marked google map. One of the filter systems (marked on your drawing) is described on the facility
schematic as drying beds.
Ron
Ron Berry [e-mail]
Engineer
DWQ/Point Source/NPDES Complex Permitting Unit
NCDENR
Phone: [phone]
Fax: [phone]
Office: Archdale Building Room 925Y
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed
to third parties unless the content is exempt by statute or other regulation.
From: Hunkele, Dean
Sent: Tuesday, February 05, 2013 9:14 AM
To: Berry, Ron
Subject: RE: Region copy draft permit and fact sheet for West Carteret WTP NC0077143
Ron,
Each backwash process has one — see attached image that I labeled.
Why is TRC not required for the color removal process as well as the greensand filter backwash since
both use their potable water?
Do you have any ideas or recommendations as to their temporary sampling plan and how we are going
to handle the 3 different waste streams since you did not make them 3 separate outfalls as seems
would be logical?

Dean Hunkele
Senior Envronmettal Speda6st
NC DENR - Divsbn of Wazw
De=-n.Hunkei ncdem,cov
Wilmington Regional Office
Ra pmn (910) 796-72.15
uma [phone]
Fes. [phone] (2018)
127 Carmel Drive 6¢ension
W&rmV mNC 28405
www.ncwaterrara6tv.ora
From: Berry, Ron
Sent: Monday, February 04, 2013 8:59 AM
To: Hunkele, Dean
Subject: RE: Region copy draft permit and fact sheet for West Carteret WTP NCO077143
Dean,
The verbage "lagoon" is from the Permit flow sheet. The lagoons are actually sand filter beds. I will change the
description accordingly. Where is the 3rd sand filter, I was only aware of 2?
Thanks,
Ron
Ron Berry [e-mail]
Engineer I
DWQ/Point Source/NPDES Complex Permitting Unit
NCDENR
Phone: [phone]
Fax: [phone]
Office: Archdale Building Room 925Y
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed
to third parties unless the content is exempt by statute or other regulation.
From: Hunkele, Dean
Sent: Friday, February 01, 2013 4:46 PM
To: Berry, Ron
Subject: RE: Region copy draft permit and fact sheet for West Carteret WTP NCO077143
Ron,
They do not have lagoons. They have 3 sand filters followed by a pump station tied to a common
outfall. One of the sand filters is offiine with backwash that enters the pump station directly.
Dean Hunkele
Senior Env-mmne at! Sperm
NC DENR - Division of Water
Dean. Hunkele*ncdenr.rav
ffflmington Regional Office
Re--Pwn [phone]
Diwt [phone]
Fax [phone]D4(2018)
127 Car" Drive Extension
VAh*9ton. NC 28405
www.ncwatWoU3 tv.ao

From: Berry, Ron
Sent: Thursday, January 31, 2013 2:41 PM
To: Hunkele, Dean
Subject: Region copy draft permit and fact sheet for West Carteret WTP NC0077143
See attachments
Ron Berry ron.berrv(a)ncdenr.gov
Engineer
DWQ/Point Source/NPDES Complex Permitting Unit
NCDENR
Phone: [phone]
Fax: [phone]
Office: Archdale Building Room 925Y
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed
to third parties unless the content is exempt by statute or other regulation.

i
y� 1
,.r
�s
�f�y�[• q' i'sS'�•;y y��
' , y.,W"� �' "Y y. k. f!i'lt'�� w.9. "'•A'•� r $ • .S
• < ! 6 � �Y. 1S � � Y bI a
2012,Google
3),f,

2012 North Carolina 303(d) List -Category 5
White Oak River Basin
10-digit Watershed 0302030103
Bogue Banks-Bogue Sound
> AU Number
Name
Description Length or Area
Units Classification Category
Category
Rating Use
Reason for Rating Parameter
Year
• 20-36-4-1
Sanders Creek (Goose
From source to Goose Creek (0.75 S Miles) 4.5
S Acres SA;HQW 5
Creek)
5
Impaired Shellfish Harvesting Loss of Use Shellfish Growing Area -Prohibited
2002
20-36.4a Goose Creek From source to DEH closure line Bogue Sound
73.3 S Acres SA;HQW
5 Impaired Shellfish Harvesting Loss of Use Shellfish Growing Area -Prohibited 2002
> 20-36-4b Goose Creek From DEH closure line to Bogue Sound
128.8 S Acres SA;HQW
5 Impaired Shellfish Harvesting Loss of Use Shellfish Growing Area -Conditionally Approved 2005
> 20.36.5 Archer Creek (Piney Cr.) From source to Bogue Sound
19.4 S Acres SA;ORW
5 Impaired Shellfish Harvesting Loss of Use Shellfish Growing Area -Prohibited 2002
> 20-36-6-1 East Prong Sanders From source to Sanders Creek
Creek
2.8 S Acres SA;HQW
5 Impaired Shellfish Harvesting Loss of Use Shellfish Growing Area -Prohibited 2002
> 20-36.6.1-1 Sikes Branch From source to East Prong Sanders Creek
1.2 S Acres SA;HQW
5 Impaired Shellfish Harvesting Loss of Use Shellfish Growing Area -Prohibited 2002
> 20-36-6a Sanders Creek From source to Bogue Sound
17.9 S Acres SA;ORW
5 Impaired Shellfish Harvesting Loss of Use Shellfish Growing Area -Prohibited 2002
> 20-36-6b Sanders Creek From source to Bogue sound 19.3 s Acres SA;CRW s
5 Impaired Shellfish Harvesting Loss of Use Shellfish Growing Area -Conditionally Approved 2002
12-digit Subwatershed 030203010304 Bogue Sound-Bogue Inle
Friday, August 24, 2012 Approved by EPA August 10, 2012 Page 118 of 170

15A NCAC 0213.0503 DEFINITIONS
Unless the context otherwise requires, the terms used herein shall be as defined in G.S. 143-213 and as follows:
(1) "Biological monitoring" shall mean the sampling or testing of the biological integrity of surface
waters and measurements of impacts including accumulations of pollutants in tissue, toxicity
monitoring, and characterization of instream biological populations.
(2) "Classified water pollution control facility" means a treatment works classified by the Water
Pollution Control System Operator Certification Commission pursuant to Chapter 90A of the
North Carolina General Statutes as class I, class II, class III, or class IV facility, or such other
classifications as the Water Pollution Control System Operator Certification Commission may
hereafter adopt.
(3) "Commercial laboratory" means any laboratory which analyzes water samples for a fee.
(4) "Composite sample" means: a sample gathered over a 24 hour period by continuous sampling or
combining grab samples in such a manner as to result in a total sample which is representative of
the wastewater discharge during the sample period. This sample may be obtained by methods
given below, however, the Director may designate the most appropriate method, number and size
of aliquots necessary and the time interval between grab samples on a case -by -case basis. Samples
may be collected manually or automatically.
(a) Continuous - a single, continuous sample collected over a 24 hour period proportional to
the rate of flow.
(b) Constant time/variable volume - a series of grab samples collected at equal time intervals
over a 24 hour period of discharge and combined proportional to the rate of flow
measured at the time of individual sample collection, or
(c) Variable time/constant volume - a series of grab samples of equal volume collected over
a 24 hour period with the time intervals between samples determined by a preset number
of gallons passing the sampling point. Flow measurement between sample intervals shall
be determined by use of a flow recorder and totalizer, and the preset gallon interval
between sample collection fixed at no greater than 1/24 of the expected total daily flow at
the treatment system, or
(d) Constant time/constant volume - a series of grab samples of equal volume collected over
a 24 hour period at a constant time interval. This method may be used in situations where
effluent flow rates vary less than 15 percent. The grab samples shall be taken at intervals
of no greater than 20 minutes apart during any 24 hour period and must be of equal size
and of no less than 100 milliliters. Use of this method requires prior approval by the
Director.

For WTP facility that discharge softener and/or softener polishing (color) wastewater (backwash, rinse, spent brine),
instream monthly monitoring for pH, salinity, and conductivity are required by the Division. Since instream monitor for
pH, salinity, and conductivity are only pertinent to softener wastewater discharge events then they must be done while
a softener wastewater source is being discharged.
- It is understood that on any given softener wastewater discharge event it may be mixed with other
wastewater sources, the requirement to sample instream during softener discharge events does not
preclude other wastewater sources from being present. The intent is to collect instream samples during the
occurrence of softener wastewater being present in the discharge. The Division does not expect nor
mandate operational philosophies for a permitted facility other than they must not result in non-
compliance in your NPDES permit nor result in unlawful discharges.
Supplemental to Permit Cover Sheet - Corrections
The intent is to have an accurate description of process related equipment to assist with facility audits. We appreciate
your input to correct and clarify and items listed or not listed.
- Will correct number of greensand filters to 4.
- Will amend "(narrative)" for 52 ft x 52 ft filtering lagoon for softener wastewater with pump station to read
"(filter bypassed but pump station active)".
If a meeting or phone conference is needed to provide further clarification, or if you intend to submit justification to
extend the compliance date beyond 18 months, you need to contact me and/or provide justification by June 15, 2013. If
I am not contacted by June 15, 2013 then the changes listed in this email will be made to the draft permit and a final
permit issued.
Ron Berry

4102 Hwy 24
Newport, NC 28570
[phone]
[phone] Toll Free
[phone] Fax
J [e-mail] E-mail
January 31, 2012
West Carteret Water Corporation
A non-profit water corporation serving western Carteret County
Mrs. Dina Sprinkle oe d9
NCDENR/DWQ/Point Source Branch ����
1617 Mail Service Center 2/0�y
Raleigh, INC 27699-1617
Re: NPDES Permit Renewal Request
NPDES Permit No. NC0077143 `
West Carteret Water Corporation WTP
Carteret County, NC/g
Dear Mrs. Sprinkle:
This letter is to request the renewal of the NPDES Permit issued to West Carteret Water Corporation for
the discharge associated with the Water Treatment Plant process.
Since the issuance of the previous NPDES Permit renewal in 2006, modifications to the sampling and
reporting for the wastewater discharged have been made to meet current permit requirements. In an
effort to meet the requirements for composite sampling for the plant, in 2009 a schedule of sampling
based on volume of backwash, was established, submitted to DWQ and received approval and has been
adhered to since. The sampling schedule was recently reevaluated and based on 2011 discharge
volumes the schedule has been adjusted. The revised schedule for sampling is attached.
As noted in the Compliance Inspection on 3/3/11, "the facility has three internal outfalls that all discharge
at different rates and frequencies." These three outfalls all discharge to a common force main but not at
the same time. Composite sampling as typically applied, does not work for this facility. By using the
previously mentioned sampling schedule, all discharge types are sampled throughout the year "creating a
simple composite of discrete grab samples from a sampling port."
We request that we be allowed to continue sampling in this manner, in accordance with the attached
schedule and that the NPDES permit be modified to reflect this change.
Please contact Mr. Bryan Wilson (WTP Operator) or Mrs. Michelle Clements, PE (System Engineer —
252-758-3746) or myself with any questions or comments you may have.
Sincerely, V �_
Lisa Smith -Perri
General Manager/Executive Director
Attachments
W:4s�' 3
l�
�3 D
r ,,N1
l

West Carteret Water Corporation WTP
NPDES Permit No. NCO077143
Carteret County, NC
Sludge Management Plan
January 31, 2012
The West Carteret Water Corporation Sludge Management Plan consists of collection
and disposal of accumulated solids generated and deposited in the three different sand
filter beds during the backwash process. The sand filters are periodically cleaned by
scraping off the layer of accumulated solids when infiltration through the beds begins to
be impeded and disposing the solids in a containment area on site. Solids are then
transported to the local landfill for disposal.

West Carteret Water Corporation
Water Treatment Plant
NPDES Sampling Plan
NPDES Permit No. NC0077143
January 30, 2012
Parameters:
1. Determine the total flow through the discharge line and % of flow from each type
of backwash through the discharge line. Use this % to determine the sampling
schedule.
(Flow meters inside the plant monitor the amount of effluent discharged during a
` backwash cycle. Each effluent has a separate flow meter and daily readings are
recorded by treatment plant personnel.)
2. Sample volume should match the % of discharge from each type of backwash.
(Table below shows backwash volumes and % of total backwash for each cycle.)
v\ 3. Backwash effluent discharges through a common pipe but backwash cycles do
not occur at the same time.
4. Each sample should identify what type of backwash effluent it is when being sent
to the lab.
5. Samples will be taken at a permanent sampling port tapped on the bottom of the
discharge pipe.
(Attached site plan shows the location for the permanent sampling port. Samples
will be taken in accordance with the NPDES permit, minimum 100 ml sample
over 24 hour period.)
/ 6. Outfall samples will still occur as necessary.
17. Samples for color and iron backwash will be taken for the duration of the
backwash cycle. (Color - 8 hours, Iron — 8 hours) Samples for softener can be
taken over a 24 hour period,
r �
JJ backwash Volume �a
Backwash
Type
Avg.
Discharge/Month
�D MG M,
Total
DischargeNear
(MG)
% of Total
Discharge
# of Samples
Iron Vessel'
0.66 Z
7.92
28%
4
Color Vessel
p 0.41
4.92
18%
2
Softener
Vessel
© 1.25
14.94
54%
6
Total
27.78
12
1. All four iron vessels are backwashed in series on the same day. Iron vessels are
backwashed twice a month. These vessels did not come on line until October of
{ I+ rpm

2008 and were backwashed several times for the first couple of months. Based
on readings since January it is taking approximately 440,000 gallons of water to
backwash the iron vessels (all four) now. Z -rj 'NJj 17,0c
2. On average four color vessels ire backwashed each month.
3. On average four softeners are backwashed daily except when other backwash
cycles are being completed.
z 5-0 boo 2Rjft14r
Sampling Schedule
P 9
Jan
Feb
Mar
April
May
June
July
Aug
Sept
Oct
Nov
Dec
S
I
S
I
S
C
S
I
S
I
S
C
D\ b�
S — Softener Vessel Backwash
C — Color Vessel Backwash
I — Iron Vessel Backwash
CVL.f - I )-c e-
2
11
no
U
i 2 �% / Z pj--r M/" (P.� �
1C�z 476-r .5 a I.., �- / - !r k