NC0027103_Permit Issuance_20090825

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
Mr. McDuffe Cummings
Manager
Town of Pembroke
P. O. Box 866
Pembroke, NC 28372
August 25, 2009
Subject: Issuance of Renewal NPDES Permit
NPDES Permit NC0027103
Town of Pembroke WWTP
Class III
Robeson County
Dear Mr. Cunnings:
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).
Summary of Changes to Renewal Permit from Active Permit
1) Mercury monitoring was removed (Mercury Reopener Special Condition removed). Evaluation of
data indicated no potential to exceed Water Quality Standards (WQS). Mercury analysis of the
effluent will continue to be part of the PPA and require measurement Method 1631E.
2) Cadmium monitoring was added. Total Cadmium has a chronic WQS. The PPA data did not provide
sufficient accuracy to eliminate the potential to exceed WQS. The more accurate data will be used
to evaluate future total cadmium impact to WQS.
3) The Specia/ Condition A. (2.) narrative has been edited. Additional language was added to state all
collected analysis must be submitted to the Environmental Sciences Section.
4) A new Total Residual Chlorine (TRC) footnote replaced the existing footnote. The ability to
accurately determine TRC values has been recognized by the Division. The new footnote clarifies
what is required.
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.
Page 1 of 2 •
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: http:ll h2o.state.nc.us /
An Equal Opportunity \ Affirmative Action Employer
NorthCarolina
Natural!,

•
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 Quality 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].
Sincerely,
.(vr : Coleen H. Sullins
Attachments
Cc: Fayetteville Regional Office/Surface Water Protection Section
EPA Region IV/Marshall Hyatt
Environmental Sciences Section/Aquatic Toxicology Unit/Susan Meadows (email copy)
Central Files
NPDES Unit
Page 2 of 2

Permit NC0027103
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 provisions of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Town of Pembroke
is hereby authorized to discharge wastewater from a facility located at the
Pembroke Wastewater Treatment Plant
Off NCSR 1339
South of Pembroke
Robeson County
to receiving waters designated as the Lumber River in the Lumber River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, Ill and IV hereof.
This permit shall become effective October 1, 2009.
This permit and authorization to discharge shall expire at midnight on July 31, 2014.
Signed this day August 25, 2009.
4c: Coleen H. Sullins, Directs
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0027103
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises
under the permit conditions, requirements, terms, and provisions included herein.
Town of Pembroke
is hereby authorized to:
1. Continue to operate an existing 1.33 MGD wastewater treatment plant consisting of the
following:
p Influent collection sump
p Influent transfer pumps
p Mechanically cleaned bar screen
p Influent flow meter
p Influent composite sampler
p Grit chamber
0 Flow splitter box
p Two (2) oxidation ditches
0 Flow splitter box
p Two (2) clarifiers
p Chlorine contact chamber
p Chlorination
p Dechlorination.
p Effluent flow meter
p Cascade post aeration
p Effluent composite sampler
p Gravity flow pipe to Lumber River
p Aerobic sludge digester
p Sludge holding tank
p Back up generator
Facility is located at the Pembroke Wastewater Treatment Plant off NCSR 1339, Pembroke,
Robeson County.
2. Discharge from said treatment works at the location specified on the attached map into the
Lumber River, classified WS-IV B SW HQW waters in the Lumber River Basin.

Upstream
Sample Location
Town of Pembroke
WWTP NC0027103
Downstream
Sample Location
pht (C)2001, koyiikte' h. Irn6.
USGS Quad: I22NW Pembroke, NC
Outfall
Latitude: 34° 39' 56.1" N
Longitude: 79 12' 12" W
. Stream Class: WS IV, 13, Sw, HQW
Subbasin: 03-07-51
Receiving Stream: Lumber.River
Facility
34° 40' 4.85" N
79° 12' 7.29" W
Town Of Pembroke WWTP NC0027103
Robeson County

Permit NC0027103
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS'
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 monitored by the Permittee as
specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow
1.33 MGD
Continuous
RecordingInfluent
or
Effluent
Temperature, °C
Daily
Grab
Effluent
Temperature, °C
(June 1 - September 30)
3/Week
Grab
Upstream &1
Downstream
Temperature, °C
(October 1 - May 31)
Weekly
Grab
Upstream &
Downstream 1
BOD, 5-day, 20° C 2
18.0 mg/L
27.0 mg/L
, 3/Week
Composite
Influent &
Effluent
Total Suspended Solids (TSS) 2
20.0 mg/L
30.0 mg/L
3/Week
Composite
Influent &
Effluent
Ammonia as Nitrogen (NH3-N)
12.0 mg/L
35.0 mg/L
3/Week
Composite
Effluent
Dissolved Oxygen (DO)
Not less than 5.0 mg/L daily
average
3/Week
Grab
Effluent
Dissolved Oxygen, mg/L (DO)
(June 1- September 30)
3/Week
Grab
Upstream 1
Downstream
Dissolved Oxygen, mg/L (DO)
(October 1 - May 31)
Weekly
Grab
Upstream &
Downstream 1
Fecal Coliform
(Geometric mean)
200/100
ml
400/100
ml
3/Week
Grab
Effluent
pH
Not more than 9.0 S.U. nor less
than 6.0 S.U.
3/Week
Grab
Effluent
Total Residual Chlorine 3
28 pg/L
3/Week
Grab
Effluent
Total Kjeldahl Nitrogen (TKN)
Monitor and Report, mg/L
Monthly
Composite
Effluent
Nitrite/Nitrate Nitrogen
(NO2-N + NO3-N)
Monitor and Report, mg/L
Monthly
Composite
Effluent
Total Nitrogen (TN)
TN = (NO2-N + NO3-N) + TKN
Monitor and Report, mg/L
Monthly
Calculated
Effluent
Total Phosphorus (TP)
- Monitor and Report, mg/L
Monthly
Composite
Effluent
Cadmium, µg/L 4
Monthly
Grab
Effluent
Chronic Toxicity 5
Quarterly
Composite
Effluent
Pollutant Analysis 6
Annually
Composite
Effluent
Footnotes:
1. Sample locations: Upstream = CSX R.R. Trestle (above plant), Downstream = at Bridge SR 1554.
2. The monthly average effluent BODS and Total Suspended Solids concentrations shall not exceed 15
percent of the respective monthly average influent value (85% removal).
3. Total Residual Chlorine compliance is required for chlorine or chlorine derivative used for
disinfection. The Division shall consider all effluent TRC values reported below 50 ug/I to be in
compliance with the permit. However, the Permittee shall continue to record and submit all values
reported by a North Carolina certified laboratory (including field certified), even if these values fall
below 50 ug/I.
4. Cadmium measurement detection minimum of 1 µg/L.
5. Chronic Toxicity (Ceriodaphnia) P/F at 1.7%; January, April, July, and October. See Special Condition
A.(2.) of this permit. Quarterly sampling shall be conducted at the same time as metal and other
effluent parameters sampling is conducted.
6. See Condition A.(3.) of this permit.
There shall be no discharge of floating solids or visible foam in other than trace amounts. -

Permit NC0027103
A. (2.) CHRONIC TOXICITY PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 1.7 %.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the
"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent
versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998)
or subsequent versions. The tests will be performed during the months of January, April, July, and October.
Effluent sampling for this testing shall be performed at the NPDES permitted final effluent discharge below all
treatment processes.
If the test procedure performed as the first test of any single. quarter results in a failure or ChV below the
permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the two
following months as described in "North Carolina Phase 11 Chronic Whole Effluent Toxicity . Test Procedure"
(Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the
highest concentration having no detectable impairment of reproduction or survival and the lowest
concentration that does have a detectable impairment of reproduction or survival. The definition of
"detectable impairment," collection methods, exposure regimes, and further statistical methods are
specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February
1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the months in which tests were performed. If reporting pass/fail results using the
parameter code TGP3B, DWQ Form AT-1 (original) is sent to the below address. If reporting Chronic Value
results using the parameter code THP3B, DWQ Form AT-3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 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, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate
signature. 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, monitoring will
be required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality 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 then required by this permit, the results of such
monitoring shall be included in the calculation & reporting of the data submitted on the DMR & all AT Forms
submitted..
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls, shall
constitute an invalid test and will require immediate follow-up testing to be completed no later than the last
day of the.month following the month of the initial monitoring.

Permit NC0027103 ,.
A. (3.) EFFLUENT POLLUNTANT SCAN
The permittee shall perform Effluent Pollutant Scans for all parameters listed in the attached table (in
accordance with 40 CFR Part 136). Samples shall be collected in different calendar years, approximately
annually, except to provide seasonal variation. Unless otherwise indicated, metals shall be analyzed as "total
recoverable."
Ammonia (as N)
Trans-1,2-dichloroethylene
Bis (2-chloroethyl) ether
Chlorine, total residual (TRC)
1,1-dichloroethylene
Bis (2-chloroisopropyl) ether
Dissolved oxygen
1,2-dichloropropane
Bis (2-ethylhexyl) phthalate
Nitrate/Nitrite
1,3-dichloropropylene '
4-bromophenyl phenyl ether
Kjeldahl nitrogen
Ethylbenzene
Butyl, benzyl phthalate
Oil and grease
Methyl bromide
2-chloronaphthalene
Phosphorus
Methyl chloride
4-chlorophenyl phenyl ether
Total dissolved solids
Methylene chloride
Chrysene
Hardness
1,1,2,2-tetrachloroethane
Di-n-butyl phthalate
Antimony
Tetrachloroethylene
Di-n-octyl phthalate
Arsenic
Toluene
Dibenzo(a,h)anthracene
Beryllium
1,1,1-trichloroethane
1,2-dichlorobenzene,
Cadmium
1,1,2-trichloroethane
1,3-dichlorobenzene
Chromium
Trichloroethylene
1,4-dichlorobenzene
Copper
Vinyl chloride .
3,3-dichlorobenzidine
Lead
Acid -extractable Compounds
Diethyl phthalate
Mercury (Method 1631E)
P-chloro-m-creso
Dimethyl phthalate
Nickel
2-chlorophenol
2,4-dinitrotoluene
Selenium
2,4-dichlorophenol
2,6-dinitrotoluene
Silver
2,4-dimethylphenol
1,2-diphenylhydrazine
Thallium
4,6-dinitro-o-cresol
Fluoranthene
Zinc
2,4-dinitrophenol
Fluorene
Cyanide
2-nitrophenol
Hexachlorobenzene
Total phenolic compounds
4-nitrophenol
Hexachlorobutadiene
Volatile Organic Compounds
Pentachlorophenol
Hexachlorocyclo-pentadiene
Acrolein
Phenol
Hexachloroethane
Acrylonitrile -
2,4,6-trichlorophenol
Indeno(1,2,3-cd)pyrene
Benzene
Base -neutral Compounds
Isophorone
Bromoform
Acenaphthene
Naphthalene
Carbon tetrachloride
Acenaphthylene
Nitrobenzene
Chlorobenzene
Anthracene
N-nitrosodi-n-propylamine
Chlorodibromomethane
Benzidine
N-nitrosodimethylamine
Chloroethane
Benzo(a)anthracene
N-nitrosodiphenylamine
2-chloroethylvinyl ether
Benzo(a)pyrene
Phenanthrene
Chloroform
3,4 benzofluoranthene
Pyrene .
Dichlorobromomethane
Benzo(ghi)perylene
1,2,4-trichlorobenzene
1,1-dichloroethane
Benzo(k)fluoranthene
1,2-dichloroethane
Bis (2-chloroethoxy) methane
The Permittee shall report test results within 90 days of sample collection to the Division in DWQ Form- DMR-
PPA1 or other form approved by the Director (see NPDES Unit web site). The report shall be submitted to the
following. address:
Division of Water Quality
Water Quality Section / Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Submittal of PPA results with NPDES renewal applications"will be required.

4
ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
MEMORANDUM
To:
From:
rfp
June 30, 2009
Debra Benoy
NCDENR / DEH / Regional Engineer
Fayetteville Regional Office
Ron Berry
NCDENR / DWQ / NPDES - East Program
Central Raleigh Office
Subject: Review of renewal draft NPDES Permit NC0027103
Town of Pembroke WWTP
Please use a printed copy of this form to indicate your agency's position or viewpoint on this draft permit
and return to me by July 24, 2009. If you have any questions on the draft permit, please contact me at
telephone number [phone] or via e-mail at [e-mail].
RESPONS • (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:
Signed GG Date: / " /✓ ��,
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: http: / / h2o.enr.state.nc.us /
An Equal Opportunity 4. Affirmative Action Employer
JUL 17 [Utz.
One .
orthCarolna
Naturally

Berry, Ron
From: [e-mail]
Sent: Tuesday, July 07, 2009 9:07 AM
To: [e-mail]
Subject: re NC0027103, Pembroke WWTP
EPA has no comments on this draft permit.
1

AFFIDAVIT OF PUBLICATION
NORTH CAROLINA
Cumberland County
Public Notice
North Carolina Environmen -
tal Management
Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27698-1617
Notice of Intent to Issue a
NPDES Wastewater Permit
The North Carolina Envimn -
menlal Management Com-
mission proposes to issue a
NPDES wastewater dis -
charge permit to the
person(s) listed below.
Written comments regarding
the proposed permit will be
accepted until 30 days after
the publish date of this no -
tice. The Director of the NC
Division of Water Quality
(DWQ) may hold a public
hearing should there be a
significant degree of puhlic
interest. Please mail com -
ments and/or information re-
quests to DWQ at the above
address. Interested persons
may visit the DWQ at 512 N.
Salisbury Street, Raleigh, NC
to review information on file.
Additional information on
NPDES permits and this no-
tice may be found on our
wcbsitc: www.ncwaterquali -
ty.org, or by calling (919)
8(17-6304.
The Town of Southern Pines
requested renewal of permit
N00049778 for its WIT in
Moore County. This permit -
led discharge is Treated
filler -backwash and clarifier
wastewater to Aberdeen
Creek. Lumber River Basin.
Robeson County Water De-
partment has applied for re-
newal of permit NC0086991
for the Sanchez Drive WTP in
Robeson County. This per
mitred discharge is filter
backwash wastewater to an
unnamed tributary 10 Linlc
Jacob Swamp in the Lumber
River Basin.
Robeson County Water De-
partment has applied for re-
newal of permit NC0085685
for the Lumber Bridge WTP
in Robeson County. This per -
milted discharge is filter -
backwash wastewater to an
unnamed tributary to Big
Marsh Swamp in the Lumber
River Basin.
Robeson County Water De-
partment has applied for re-
newal of permit NC0084204
for the Kenric Road WTP in
Robeson County. This per-
mitted discharge is filter
backwash wastewater to an
unnamed tributary to the
Lumber River in the Lumber
River Basin.
Robeson County Water De-
partment has applied for re-
newal of permit NC0048577
for the Maxton WTP in
Robeson County. This per -
mined discharge is fiher-
backwash wastewater to the
Lumber
River in the Lumber River
Basin.
Town of Pembroke request -
ed renewal of permit
NC0027103 for its Pembroke
WWTP in Robeson County.
This permitted discharge is
treated wastewater to Lum-
ber River, the Lumber River
Basin.
Aiamac American Knits, LL(
uested renewal of permit
-- 618 for its
mbenon facility in
n County. 'these per -
tted discharges are treat -
industrial wastewater to
Lumber River and filter
wash water into Jacob
trip, Lumber River Basin.
ice of Intent to Issue a
ES Wastewater Permit
1555163
Before the undersigned, a Notary Public of said County and state, duly
commissioned and authorized to administer oaths, affirmations, etc.,
personally appeared. CINDY L. OROZCO
Who, being duly sworn or affirmed, according to law, doth depose and say
that he/she is LEGAL SECRETARY
of THE FAYETTEVILLE PUBLISHING COMPANY, a corporation organized
and doing business under the Laws of the State of North Carolina, and
publishing a newspaper known as the FAYETTEVILLE OBSERVER, in the
City of Fayetteville, County and State aforesaid, and that as such he/she
makes this affidavit; that he/she is familiar with the books, files and
business of said Corporation and by reference to the files of said publication
the attached advertisement of CL Legal Line
ENVIRONMENTAL MANAGEMENT COMMISSION
of NC DIVISION OF WATER QUALITY
was inserted in the aforesaid newspaper in space, and on dates as follows:
7/3/2009
and at the time of such publication The Fayetteville Observer was a
newspaper meeting all the requirements and qualifications prescribed by
Sec. No. 1-597 G.S. of N.C.
The above is correctly copied from the books and files of the aforesaid
corporation and pu cation.
LEGAL SECRETARY
Title
Cumberland County, North Carolina
Sworn or affirmed to, and subscribed before me, this 6 day
of July, A.D., 2009.
In Testimony Whereof, I have hereunto set my hand and affixed my
official seal, the day and year aforesaid.
Pamela H. Walters, Notary Public
My commission expires 05th day of December, 2010.
MAIL TO: NC DIVISION OF WATER QUALITY
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699
0001555163

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0027103
AppIleant %FacilityMarri
Applicant,Address
Facility Address
:Pe;rtn tted! FIo
Facility Information;
Town of Pembroke WWTP
P.O. Box 866; Pembroke, NC 28372
8257 Deep Branch Road, Pembroke, NC 28372
1.33 MGD
Type ofWaste_,>
`Facility/Permit Status
.,Cour
100% domestic
Class III /Active; Renewal
Robeson County
isceiianeous
Reeeiving
Subbasin'=
Drina
:real
real
Lumber River
03-07-51
427
Stream CIassitication
303(d) Listed?
WS IV, B, Sw, HQW
14-(7)
No
iSrrititrierv,7,01T011(aStille
Infer,
3:0Q
(,I
Aera9e Flo
-o.
120
387.74 (est USGS)
1.7
Regionali;Office . ..... .
ate,,
Sri
Permit Writ
;D,
Fayetteville
I22NW
Ron Berry
6/18/09
BACKGROUND
The Town of Pembroke operates a 1.33 MGD wastewater treatment facility that serves the
Pembroke community, estimated 4,200 population.. The Pembroke Plant discharges treated
100% domestic wastewater to Lumber River, a class WS IV, B, Sw, HQW water in the Lumber
River Basin
Untreated domestic waste is collected in the plant influent sump. The influent pump system
feeds the plant headworks. The untreated waste flow is screened through a mechanical bar
screen, passes through the influent meter, flows through a pre-aeration/grit removal system,
and flows into a flow splitter box. The influent composite sample is collected adjacent to the
influent meter.
From the splitter box 2 discrete flow rates are directed to 2 oxidation ditches. Each ditch is
rated for 0.66 MGD treatment capacity. The discharge flows from the ditches recombine and
is directed by a splitter box to 2 equal sized clarifiers. The clarifiers liquid discharges
combine and continue to the chlorine contact chamber .where chlorination and
dechlorination treatment is performed.
As the treated waste exits the contact chamber it passes through the effluent flow meter,
post aeration cascade system, and into the pipe thatdischarges into the Lumber River. The
effluent composite sampler is located at the exit of the cascade system.
An aerobic sludge digestor collects wasted sludge and provides treatment before
transferring the treated sludge to a holding tank. The dewatered sludge is normally land
applied, or if need can be dispose of via a contract service. As required back up power is
available.
HISTORY
The facility has 4 compliance limits violations and 5 monitoring violations from September
2004 to December 2009. There have been no process changes during this permit cycle. In
the 2006 303(d) list this steam segment is no longer listed as impaired.
PERMITTING STRATEGY
Reasonable Potential. Analysis (RPA)
The Division conducted EPA -recommended analyses to determine the reasonable potential
for toxicants to be discharged by this facility, based on DMR data from February 2007 to
January 2009 and from the 3 PPA submitted with the renewal application. Evaluations were
conducted for arsenic, beryllium, cadmium, chromium, copper, cyanide, hardness, lead,
Fact Sheet
NPDES NC 0027103
Dann 1 of

mercury, nickel, nitrate nitrogen (use nitrite/nitrate data), chlorinated phenolic compounds
(use total phenolic data), selenium, silver, total dissolved solids, and zinc.
Results suggest reasonable potential for the facility to discharge zinc in excess of water
quality standards. However, zinc is an action level parameter and the facility has
consistently passed its toxicity test and will not be added to the permit. THE PPA cadmium
values were below the measurement method limit, < 50 pg/L. This resulted in the RPA
suggesting a reasonable potential for the effluent to exceed the water quality acute
standard. Cadmium monitoring will be added to the permit. All other evaluated compounds
were deemed not significant and do not require any additions to the permit. Mercury values
were Tess than 12 ng/L, monitoring will be removed from the permit but is still required in the
.PPA.
Data review
DMRs were reviewed for the period of February 2007 to January 2009. DMR data is
summarized in Table I below:
I (month) averages)
I auIc y
Flow
(MGD)
Dissolved
Oxygen
(mg/L)
BOD*
(m9/L)
TSS*
{mg/L)
NH3-N
"WI)
Fecal
Coliform
(#//100 ml)
Total
Residual
Chlorine
(µg/L)
Average
0.74
8.5
4.3
4.0
1.8
109.7
5
Maximum
1.24
11.6
12.0
9.6
10.1
754.3
19
Minimum
0.45
6.8
1.7
1.3
< 0.1
4.0
< 10
*Percent Removal: Based on BOD 91% -97%, Based on TSS 90% - 97%
Table II (month y averages)
14
(s.u.)
Total
Nitrogen
(mg/L)
5.2
Total
Phosphorus
(mg/L)
1.6
Average
6.9
Maximum
7.6
13.7
6.5
Minimum
6.1
1.2
> 0.1
Whole Effluent Toxicity
The permit requires quarterly chronic toxicity limit testing using ceriodaphnia dubia, at 1.7%
effluent concentration. The facility passed the 18 toxicity tests submitted since September
2004. An additional 4 second species toxicity tests • were submitted with the renewal
application, all ChV values were > 6.8%, higher than the 1.7% effluent concentration. Will
continue the quarterly chronic toxicity limit testing as defined.
Priority Pollutant Analysis
The results of 3 PPA were submitted with the.permit renewal application. See RPA Analysis
for results. Will continue to include the special : condition for submittal of seasonal PPA
annually.
Instream Data Impact .
Temperature and dissolved oxygen are required monitoring parameters at designated points
upstream and downstream from the discharge, into the Lumber River. Instream Fecal
coliform monitoring was voluntary. One set of instream and effluent data for parameter in
each month from 2007 and 2008 data was reviewed to evaluate the impact of the effluent.
There was some limited correlation between, the effluent and its impact to the receiving
stream. Will continue instream monitoring requirements as defined.
Effluent Limitations
The existing permit conventional effluent limits for BOD, TSS, 85% removal, pH will continue.
The permitted flow will remain 'unchanged.
Fact Sheet
NPDES NC0027103
pA w 7 of'1

Water Quality Limitations
The existing permit water quality based limits for fecal coliform, dissolved oxygen, and total
residual chlorine will continue. A revised narrative defining measurement compliance for
total residual chlorine will be made. The existing permit chronic toxicity limit test will
continue. Basedon the previous oxygen consumption calculation the existing permit
ammonia as nitrogen limits will continue.
Monitoring
The existing permit monitoring requirements for effluent total nitrogen, total phosphorus,
temperature, and instream parameters will continue. Narrative changes for the TN
components will be made. Cadmium will be added to collect data for future RPA evaluation.
Mercury will be removed.
SUMMARY OF PROPOSED CHANGES
In keeping with Division policies the following will be incorporated into the permit:
p Mercury monitoring was removed.
p Cadmium monitoring was added.
p Revised narrative for total residual chlorine and total nitrogen.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: July 1, 2009
Permit Scheduled to Issue: October 1, 2009
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit,
please contact Ron Berry at [phone] or email [e-mail].
NAME: . O �P�►-� DATE: 5/1-/b
REGIONAL OFFICE.COMMENTS
NAME: DATE:
SUPERVISOR: DATE:
Fact Sheet
NPDES NC0027103
pain of

REASONABLE POTENTIAL ANALYSIS
Town of Pembroke WWTP
NC0027103
Time Period Feb 2007 - Jan 2009
Qw (MGD) 1.33
7Q10S (cfs) 120
7Q10W (cfs) 120
30Q2 (cfs) 120
Avg. Stream Flow, QA (cfs) 309.2
Rec'ving Stream Lumber River
WWTP Class Class III
IWC (%) @ 7Q10S 1.6889
@ 7Q10W 1.6889
@ 30Q2 1.6889
@ QA 0.6623
Stream Class WS IV,,B, Sw, HQW
Outfal l 001
Qw = 1.33 MGD
PARAMETER
TYPE
CO
STANDARDS &
CRITERIA (2)
PQL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
tic Ms/
Chronic
'h FAV/
Acute
n 11Det Max Pred Cie Allowable Cw
Arsenic
C
10
ug/L
3 0
Note: n<12
Limited data
10.0
set
Acute:
Chronic:
N/A
1,510
Monitoring not necessary in permit
. _ e .
Beryllium
C
6.5
ug/L
3 0
Note: n<12
Limited data
10.0
set
Acute:
_
Chronic:
N/A�
__ ____
9-8
_ _ _
Monitorng not necessary in perms
. Cadmium
NC
2
15
ug/L
3 - 0
Note: n<12
Limited data
25.0
set
Acute:
Chronic:
15
118
Moonitor2/montri`--
Reported values below PQL,` require lower PQLin permit.
Provisional monitoring.:
Chromium
NC
50
1,022
ug/L
3 0
Note: n<12
Limited data,
5.0
set
Acute:
Chronic:
1,022
Monitoring not necessary ill permit
2,961
Monitoring notnecessaryin permit" ,
" `
Copper -
NC
7
AL
7.3
ug/L
3 0
Note: n<12
Limited data
10.0
set
Acute:
Chronic:
7
_Reported
414
(Action Level parrameter) -
values_below PQL, passed all_YJET test"
Monitoring not necessary in, permit
- - "
Cyanide
NC
5
N
22
10
ug/L
3 0
Note: n<12
Limited data
set
Acute:
Chronic:
22
296
Monitoring° not necessary in permit o ,
_.."
Monitoring not necessary in permit
Fluoride -
NC
1,800
ug/L
0 0
N/A
Acute:
Chronic:
N/A
106,578
<No Data Entered >
Lead
NC
25
N
33.8
ug/L
3 2
Note: n<12
Limited data
14.4
set
Acute:
Chronic:
34
1,480
Monitoring not necessary' in permit.
Monitoring not necessary in permit ,
Mercury
NC
12
2.0000
ng/L
11 11
Note: n<12.
Limited data
21.3689
set
Acute:
Chronic:
N/A
711
Monitoring not necessary in perms = i e
Molybdenum
A
3,500
ug/L
0 0
N/A
Acute:
Chronic:
N/A
207,235
<4o Data Entered >
-
NC
25
261
ug/L
3 0
Note: n<12
Limited data
5.0
set
Acute:
_
Chronic:
261
__ _ _
1,480
Monitoring not necessary inapenmL
.,°Nickel
Monitoring not necessary in permit
-
Phenols
A
1 '
N
ug/L
3 0
Note: n<12
Limited data
5.0
set
Acute:
Chronic:
N/A
59
Monitoring not necessary in permit"
_ _ _ _ _ _ ---
Monitoring not necessary in `permit
Selenium
NC
5.0
56
ug/L
. 3 0
Note: n<12
Limited data
10.0
set
Acute:
Chronic:
56
296
Monitoring not necessaryin permit
_
Monitoring not necessary In permit
_.
Silver
NC
0.06
AL
1.23
ug/L
-3 0
Note: n<12
Limited data
5.0
set
Acute:
Chronic:
1
_ _Reported
4
(Action Level parameter) __ -
values below,P_OL,";'passed all WET test - ' _
Monitoring not necessary in permit
Zinc
NC
50
AL
67
ug/L
3 3
Note: n<12
Limited data
200.9
set
Acute:
Chronic:
67
2,961
(Action Level parameter): passed all WET'test
Monitoring not necessary in permit
• Legend:
C = Carcinogenic
NC = Non -carcinogenic
A = Aesthetic
•• Freshwater Discharge
lnpdesrpa 2009031, rpa
6/18/2009

REASONABLE POTENTIAL ANALYSIS
Town of Pembroke WWTP
NC0027103
Time Period 0
Qw (MGD) 1.33
7Q10S (cfs) 120
7Q10W (cfs) 120
30Q2 (cfs) 120
Avg. Stream Flow, QA (cfs) 387.74
Rec'ving Stream Lumber River
WWTP Class Class III
/WC (%) @ 7Q10S 1.6889
@ 7Q10W 1.6889
@ 30Q2 1.6889
@ QA 0.5289
Stream Class WS IV, B, Sw, HQW
Outfall 001
Qw=1.33MGD
PARAMETER
TYPE
(1)
STANDARDS &
CRITERIA (2)
NCWQS/ K FAV/
Chronic Acute
PQL
Units
REASONABLE POTENTIAL RESULTS
O #Def. Max Prod Cw
Allowable Cw
RECOMMENDED ACTION
Hardness
TDS
Nitrate-N
(NO2-N + NO3-N)
NC
NC
NC
100
500
10
mg/L
mg/L
mg/L
3 3 69.7
Note: n<12.
Limited data set
3 3
Note: n<12
Limited data set
27.1
N/A
N/A
N/A
26 26
O 0
O 0
O 0
O 0
O 0
O 0
O 0
O 0
O 0
O 0
O 0
O 0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
WA
N/A
Acute: N/A
Chronic: 5 921 Monitoring not necessary„inpermita
Acute: N/A
319.2
Chronic: 29,605
Acute: N/A
Monitoring not necessary in permit
Chronic: 592 Monitoring not necessary inrpennit
Acute: N/A
Chronic: °rcor @ Type'
Acute: N/A
Chronic: _rror @ Type
• Legend:
C = Carcinogenic
NC = Non -carcinogenic
A = Aesthetic
** Freshwater Discharge
2npdes rpa 2009031, rpa
6/18/2009

DIVISION OF WATER QUALI
March 9, 2009
MEMORANDUM
TO: Dina Sprinkle
Point Source Branch
FROM: Dale Lopez, Environmental Specialist
7' , 7, - WATER OUALfTY
'' �'T SOURCE BRANCH
THROUGH: Belinda S. Henson, Regional Supervisor Surface Water rote tionOect'on
e' 2 7 ''
SUBJECT: Application for NPDES Permit NCOQ
Pembroke Wastewater Treatment Plant
PO Box 866
8257 Deep Branch Road
Pembroke, NC 28372
Robeson County
Please find enclosed a staff report and recommendations from the Fayetteville Regional
Office concerning the application for a new NPDES Permit.
If you have any questions or require any further information, please advise.
/DL
Enclosures

To: Permit and Engineering Unit
Water Quality Section
Attention: Dina Sprinkle
Date: March 9, 2009
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY: Robeson
Permit No.: NC0027103
PART 1— GENERAL INFORMATION
1. Facility and Address: Pembroke Wastewater Treatment Plant
PO Box 866
8257 Deep Branch Road
Pembroke, NC 28372
2. Date of Investigation: October 13, 2008
3. Report Prepared by: Dale Lopez, Environmental Specialist FRO
4. Person Contacted and Telephone Number:
McDuffie Cummings [phone]
5. Directions to Site:
From Fayetteville, travel on Hwy 95 South, pass through Lumberton, then turn right on
Exit 17 (Hwy 711). Turn left onto Deep Branch Road (immediately after passing the
Department of Correction facility, travel straight approximately five miles. The
Pembroke Wastewater Treatment Plant will be on the left.
6. Discharge Point(s), List for all discharge points:
Latitude: 34°39'55" N Longitude: 79°12'00" W
Attach a U.S.G.S. map extract and indicate the treatment facility site and the discharge point on
the map.
U.S.G.S. Quad No.
U.S.G.S. Quad Name:
I 22 NW
Pembroke, N.C.

7. Site size and expansion area consistent with the application?
Yes.
8. Topography (relationship to the flood plain):
9. Location of the nearest dwelling:
Not evaluated
Not evaluated
10. Receiving stream or affected surface waters:
a. Classification:
Lumber River Index Number 14-(7) Primary Classification WS-IV, B
Secondary Classification Sw, HQW
b. River Basin No. ,umber River 03-07-51 and Sub basin No.:
c. Describe receiving stream features and the pertinent downstream uses:
1LUM51
The discharge from the Pembroke wastewater treatment facility flows to Lumber
River, at a point with a 7Q10 of 120 cfs flow (as according to the Whole Effluent
Toxicity Testing Self -Monitoring Summary --- see attachment). It is classified as
Class WS-IV, B, Sw, HQW waters, which promotes aquatic life propagation and
survival, fishing, wildlife, primary recreation, and agriculture, and waters used as.
sources for potable water supply.
PART II - DISCRIPTION OF WASTES AND TREATMENT WORKS
Volume of wastewater to be permitted:
(Ultimate Design Capacity)
What is the current permitted capacity of the Wastewater Treatment facility?
1.33 MGD
1.33 MGD
Actual treatment capacity of the current facility (current design capacity)?
1.33 MGD
Please provide a description of the existing or substantially constructed
wastewater treatment facility:
The raw wastewater flows into the Influent Pump Station (with three each 36 HP
pumps). Then, flows through a Mechanical Bar Screen (or a Manual bar screen),
through Pre -aeration and Grit/Grease removal. Then, flows through a splitter box
to two oxidation ditches, through two clarifiers. And, on to the chlorine contact
chamber and dechlorination, and finally the Cascade Step Aeration. The facility
has a 500,000 gallon digester and a 80,000 gallon sludge holding basin for sludge
management. Sludge is aerobically digested to meet vector and pathogen
reduction. Once the digester is full and decanting is complete, testing begins for
Class. B Sludge. Sludge is land applied under permit WQ0013729. This is
normally a six-month process. The sludge holding basin is for extra storage. The
facility has a secondary plan with Atlantic Dewatering for composting.

e. Possible toxic impacts to the surface waters:
None
2. Residuals handling and utilizing/disposal scheme:
a. If residuals are being land applied, please specify the DWQ Permit No.
WQ0013729
Residual Contractor:
Telephone:
b. Residual stabilization:
c. Landfill:
f.
'Atlantic Dewatering
N/A
N/A1
Other disposal/utilization scheme (specify):
N/A'
3. Treatment plant classification (attach completed rating sheet):
4. Alternative Analysis Evaluation:
Has the facility evaluated all of the non -discharge options available? Please provide the
regional perspective for each of the options that were evaluated.
Connection to Regional Sewer System:
Land Application:
Water Reuse:
none evaluated
none evaluated
none evaluated

PART IV — EVALUATION AND RECOMMENDATIONS
1. The applicant is not requesting modification of the facility or increasing flow at this time.
2. A review of the compliance data did not reveal any significant violations.
3. Based upon the previous Compliance Evaluation Inspection (CEI) that was conducted on
October 13, 2008, all units were in service, and "this facility continues to maintain a very
high standard for wastewater treatment".
4. This Office recommends continuation of the Special Conditions for the Whole Effluent
Toxicity monitoring.
5. Based upon the above information, this Office recommends reissuance of the said permit
for the continued operation of an existing 1.33 MGD wastewater treatment facility
consisting of influent pumps, mechanical bar screen, grit chamber, Dual oxidation
ditches, Dual clarifiers, Chlorine contact chamber, Dechlorination, Cascade aeration, and
Sludge digester located at the Pembroke Wastewater Treatment plant, southeast of the
Town of Pembroke, in Robeson County.

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http://www.mapquest.com/maps?city=Pembroke&state=NC 3/10/2009

Town of Pembroke
POST OFFICE BOX 866
PEMBROKE, NORTH CAROLINA
28372
MILTON R. HUNT
MAYOR
McDUFFIE CUMMINGS
MANAGER
Amira Hunt
CLERK
January 30, 2009
Subject: NPDES Permit Renewal Application
Permit NC0027103
Dear Dina Sprinkle:
COUNCILMEN:
LARRY BROOKS
LARRY McNEILL
GREGORY CUMMINGS
ALLEN G. DIAL
The facility has a 500,000 gallon digester and a 80,000 gallon sludge holding basin for sludge
management. Sludge is aerobically digested to meet vector and pathogen reduction. Once the digester is
full and decanting is complete, testing begins for class B Sludge. Sludge is land applied under permit
WQ0013729. This is normally a six-month process. The sludge holding basin is for extra storage. The
wastewater facility has a secondary plan with Atlantic Dewatering. In the event the facility can not use
the primary plan The Town of Pembroke will contract with Atlantic Dewatering to dewater and send to
their contracting site for composting.
The facility has had no changes since the last permit.
Please contact me with further questions at 910-521-9758.
Sincerely,
McDuffie Cummings
Manager
RECEIVED
DENR - WATER QUALITY
POINT SOURCE BRANCH

Attachment Order 2-b:
Town of Pembroke NC0027103
Process Flow Diagram
Grit/
Grease
removal
53 MGD
Oxidation
Ditch
Generator
Office/Lab
Pre -
Aeration
.53 MG
Oxidation
Ditch =.
SMGD
Digester
A8 MG�
Holding 11
Tank
Influent Flow
.83 MGD
Return Activated Sludge
3-36Hp
Pumps
Influent
Pump Station
Digester
Return
Line
Chlorine Contact
Effluent
Discharge
.83 MGD

44.
Town of Pembroke
POST OFFICE BOX 866
PEMBROKE, NORTH CAROLINA
28372
MILTON R. HUNT
MAYOR
McDUFFIE CUMMINGS
MANAGER
AMIRA HUNT
CLERK
North Carolina Department of Environment and Natural Resources
Ron Berry, NPDES Eastern Group
1617 Mail Service Center
Raleigh, NC 28372
Dear Mr. Berry:
COUNCILMEN:
LARRY BROOKS
LARRY McNEILL
GREGORY CUMMINGS
ALLEN G. DIAL
This is a response to the letter dated April 3, 2009 requesting triplicate Priority Pollutant Analyses, second
species toxicity, and a narrative describing the locations of flow meters and samplers.
The influent flow meter as well as the influent sampler is located after the mechanical screening but before pre -
aeration and grit/grease removal. The effluent flow meter is located at the end of the chlorination tank. The
effluent sampler sits at the base of the cascade aerator prior to entering into the discharge pipe.
Triplicate toxicity and priority analyses are enclosed in this packet. Please contact the office at 910-521-9758
with any questions.
Sincerely,

FACT SHEET -LUMBER RIVER BASIN
REVIEW FOR EXPEDITED PERMIT RENEWALS
(Instructions for Permit Writer)
tential For Expedited Permit Renewal
Reviewer(s) / Date:
BPS I /3O/b,
Check If
Codes'
Permit Number:
NC0027103
ti
Facility Name:
Pembroke WWTP
Sub -basin number:
03-07-51
i.--
Receiving Stream:
LUMBER RIVER
;�
Permit Stream Classification: WS-IV, B, Sw, HQW
,/
Public WWTP
Private WWTP
WTP
Industrial
Other
GREEN
* If WTP, add permitted flow limit(MGD : CO"` SAND RO IE
Pretreatment? YES
(If YES then contact PERCS for data RPA)
TRC limit/footnote? YES/ADD**
(If in permit EDIT FOOTNOTE see TRC
FOOTNOTE text)
WET testing/footnote? YES/ADD** g
(If in permit EDIT SPECIAL CONDITION see
WET language text, check footnote)
4,,�
NH3 limit? YES/ADD** V��J
(If in permit check, edit LIMIT for applicable LIMITS
categories, monthly/weekly or wekly/daily)
**IWC evaluation needed? YES NO
IWC calculation in file? YES NO
Permit Special Conditions? YES/ADD NO
(If facility has BACKUP CHLORINATION see
SPECIAL CONDITION and FOOTNOTE text)
Instream monitoring? YES NO
(Check, edit where warranted)
303(d) listed? YES
Watch Listed? YES (NO
Permit MODs since last renewal? YES NO
Compliance issues? YES NO
Existing expiration date: 7/31/2009
Next cycle expiration date: 7/31/2014
nts
* Apply WTP Permitting Strategy, WET may be required
** IWC requires 7Q10 flow data, check with Basin Coordinator for best source
V E 14 Wto 0
Select Expedited Catergory That Applies To This Permit Renewal
SIMPLE EXPEDITED - administrative renewal with no changes, or only minor
❑ changes such as TRC or ownership change. Includes conventional WTPs (does not
include permits with Special Conditions, Reverse Osmosis, or Ion -exchange WTPs).
COMPLEX EXPEDITED - includes Special Conditions such as EAA, Wastewater
❑ Management Plan, 303(d) listed, toxicity testing, instream monitoring, compliance
concerns, edit NH3 limit, phased limits, stream re -class).
NOT EXPEDITED - Mark all of the following that apply:
❑ Major Facility (municipal/industrial)
❑ Permitted flow > 0.500 MGD (requires full Fact Sheet)
❑ Minor Municipal with Pretreatment Program (SIUs)
❑ Minor Industrial subject to Federal Effluent guidelines
❑ Limits based on RPA (toxicants/metals, GW remediation for organics)
❑ Other
2009 Lumber Basin Permit Review/Shared Drive/Lumber Basin