NC0027103_Permit Modification_20110314

AVA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins _ __.__.._ .__.._._ _ Dee Freeman
Governor Director Secretary
MAR 1 4 2011
Mr. McDuffie Cummings, Town Manager
Town of Pembroke
P. O. Box 866
Pembroke, NC 28372
Subject: NPDES Permit Modification
Permit Number NC0027103
Town of Pembroke WWTP
Robeson County
Dear Mr. Cummings:
Division personnel have reviewed and approved your application for minor modification of the subject permit.
Accordingly we are forwarding the attached modified permit page. Please remove the existing "Effluent
Limitations And Monitoring Requirements" page and replace it with the one attached to this letter.
This modification removes the effluent monitoring requirement for cadmium. The modification was based upon
the following factors: 1) your statement that the flow to the WWTP is 100% domestic, with no contributions
from industrial discharges, and 2) a reasonable potential analysis based upon effluent data submitted by the
facility was conducted, which showed the discharge exhibited no reasonable potential to cause the water quality
standard for cadmium to be exceeded in the receiving stream.
This modification 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 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 permit that
may be required. If you have any questions concerning this permit, please contact Bob Sledge at telephone
number [phone] or via e-mail at [e-mail].
cerely,
)1(. (.1`)d.
Coleen H. Sullins
cc: Central Files
Fayetteville Regional Office/Surface Water Protection Section
NPDES Permit File
ec: Aquatic Toxicology Unit
EPA Region 4 — Pamela Myers
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: www.ncwaterquality.org
An Equal Opportunity i Affirmative Action Employer
NoprthCarolina
Naturally

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
Recording
Influent or
Effluent
Temperature, °C
Daily
Grab
Effluent
Temperature, °C
(June 1 - September 30)
3/Week
Grab
Upstream Et
Downstream
Temperature, °C
(October 1 - May 31)
WeeklyGrab
Upstream Et
1
Downstream
BOD, 5-day, 20° C 2
18.0 mg/L
27.0 mg/L
3/Week
Composite
Influent Et
Effluent
Total Suspended Solids (TSS) 2
20.0 mg/L
30.0 mg/L
3/Week
Composite
Influent Et
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 Et
Downstream 1
Dissolved Oxygen, mg/L (DO)
(October 1 - May 31)
WeeklyGrab
Upstream Et
1
Downstream
Fecal Coliform
(Geometric mean)
200/100 ml
400/100ml
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
Chronic Toxicity 4
Quarterly
Composite
Effluent
Pollutant Analysis 5
Annually
Composite
Effluent
Footnotes:
1. Sample locations: Upstream = CSX R.R. Trestle (above plant), Downstream = at Bridge SR 1554.
2. The monthly average effluent BOD5 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/l 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/l.
4. 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.
5. See Condition A. (3.) of this permit.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Town of Pembroke
POST OFFICE BOX 866
PEMBROKE, NORTH CAROLINA
28372
MILTON R. HUNT
MAYOR
McDUFFIE CUMMINGS
MANAGER
AMIRA HUNT
CLERK
NCDENR/Division of Water Quality
NPDES Surface Water Protection Section
1617 Mail Service Center
Raleigh, NC 27699-16147
Dear Surface Water Protection Section:
COUNCILMEN:
LARRY BROOKS
LARRY McNEILL
GREGORY CUMMINGS
ALLEN G. DIAL
The Town of Pembroke is requesting a minor permit modification of NPDES Permit NC0027103. The Town
of Pembroke wishes to remove cadmium as a monthly monitoring requirement.
The current permit went into effect October, 2009. Since that time Pembroke has performed 14cadmium
analyses that were all less than the detection level. In fact all cadmium analyses dating back to 2005 have been
below detection. Our waste stream is 100% domestic and we have no industrial dischargers.
In light of the above data we are requesting that the cadmium monitoring be removed. Over the life of the
permit approximately $3400 could be allocated to maintenance or the purchase of new equipment, which is vital
to daily wastewater treatment, especially small systems. The current economy has forced Pembroke to search
all avenues for efficiency and still fulfill all obligations.
The Town of Pembroke appreciates your cooperation and anticipates that together we can protect public health
and the environment. Please contact Rhonda Locklear at 910-521-2989 if you have any questions.
Sincerely,
r
rM u e Cfit;
ummings
DENR-WAi ER QUALITY
POINT. SOURCE BRANCH

Town of Pembroke WWTP
Cadmium Data 10/2009 - 11/2010
Permit Version Facility County Region Outfall Month Day Year Comment Parameter Param Class Sample UoM Value Modifier Cell Type Lon Subbasin
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 10 9 2009 01027- Cadmium, Total (as Cd) Metal Grab ugA 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 11 23 2009 01027- Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 12 2 2009 01027- Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 1 8 2010 01027- Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 2 17 2010 01027 - Cadmium, Total (as Cd) Metal Grab ugA 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 * Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 3 1 2010 01027 - Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 4 7 2010 01027- Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 5 5 2010 01027 - Cadmium, Total (as Cd) Metal Calculated ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 6 9 2010 01027- Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 7 6 2010 01027- Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 8 2 2010 01027 - Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 9 14 2010 01027 - Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 10 5 2010 01027 - Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51
NC0027103 3.00 Town of Pembroke - Pembroke WWTP Robeson Fayetteville 001 11 23 2010 01027 - Cadmium, Total (as Cd) Metal Grab ug/I 1. LESSTHAN DLYVALUE Effluent 03-07-51

ciatow
POST OFFICE BOX 866
PEMBROKE, NORTH CAROLINA
28372
OFFICE OF THE MANAGER
March 30, 2010
Point Source Branch
Surface Water Protection Section
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Delegation of Signature Authority
Town of Pembroke Wastewater Treatment Plant
NPDES No. NC0027103
To Whom It May Concern:
MUNICIPAL BUILDING
100 SOUTH UNION CHAPEL ROAD
APR 12010
POINT Ou�,t.; _,rry
/ N 4
By notice of this letter, I hereby delegate signatory authority to each of the following
individuals for all permit applications, discharge monitoring reports, and other
information relating to the operations at Town of Pembroke Wastewater Treatment
Plant as required by all applicable federal, state, and local environmental agencies
specifically with the requirements for signatory authority as specified in 15A NCAC
2B.0506.
Rhonda Hagan Locklear Water and Wastewater Director
If you have any questions regarding this letter, please feel free to contact me at 910-521-
9758.
Sincerely,
Mc uffie Cummin
cc: Fayetteville Regional Office, Surface Water Protection Section
Technical Assistance and Certification Unit
PHONE [phone] • FAX [phone]
E-MAIL: [e-mail]

TOWN OF PEMBROKE
PO BOX 866
PEMBROKE NC 28372
91 0-521 -9758 (PHONE)
91 0-52 1 -0472 (FAX)
TRANSMITTAL SHEET
TO: FROM:
Michelle Scott McDuffle Cummings
COMPANY DATE:
DIVISION OF WATER QUALITY 03-31-2010
REFERENCE:
Delegation of Signature Authority
Per your request. Please feel free to call if
you have additional questions.
SHEETS: