NC0078955_Permit Issuance_20060828

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.B. Director
Division of Water Quality
August 28, 2006
Mr. Ronald D. Autry
City of Dunn
P.O. Box 1065
Dunn, North Carolina 28335
Subject: Issuance of NPDES Permit NCO078955
AB Uzzle WTP
Harnett County
Dear Mr. Autry:
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 May 9, 1994 (or as subsequently amended).
This final permit includes the following changes from your current permit:
➢ This permit includes a TRC limit that will take effect on April 1, 2008. If you wish to install
dechlorination equipment, the Division has promulgated a simplified approval process for such projects.
Guidance for approval of dechlorination projects is attached.
➢ To support nutrient -sensitive modeling for the Middle Cape Fear watershed, the Division now requires
dischargers to report the component species (TKN and (NO3N + NOS) as well as Total Nitrogen (TN).
Your lab already analyses the species in order to calculate TN values; this added condition merely
requires you to report the intermediate results along with the TN value. This requirement will become
effective January 1, 2009.
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 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
Agyeman Adu-Poku at telephone number [phone], extension 508.
Sincerely,
foci Alan W. Klimek, P.E.
cc: Central Files
NPDES File N�°o�cttC� ••�
Fayetteville Regional Office / Surface Water Protection ,iv'7tM'ap;
North Carolina Division of Water Quality 1617 Mail Servioe Center - Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet w-ncwateroualitv.ore Location: 512 N. Salisbury SL Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Af irmative Acton Employer— 50% Recycled/10% Post Consumer Paper

Permit NCO078955
STATE OF. NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERWr
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of. North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended; the
City of Dunn
is hereby authorized to discharge wastewater from a facility located at the
AB Uzzle Water Treatment Facility
805 West "E" Street
Erwin, North. Carolina _
Haniet County
to receiving waters designated as Juniper Creek in the Cape Fear River basin
in accordance.with effluent limitations, monitoring requirements, and other conditions set forth in Parts
I, Ili III and IV hereof.
This permit shall become effective October 1, 2006.
This permit and authorization to discharge shall expire at midnight on September 30, 2011.
Signed this day August 28, 2006.
lzic
Alan W. Klimek, P.E. Director
Division of Water Quality
By Authority of the Environmental Management Commission

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AB Uzzle WTP Facility
Location
State Grid/Ouad: F 24 SW / Erwin, NC Permitted Flow: 0.20 MGD not to scale
Latitude: 35' 19' 30" N Longitude: 78' 41' 50" w NPDES Pernut No. NC0078955
Receiving Stream: Juniper Creek Sub -Basin: 03-06-13 North
Drainage Basim Cape Fear River Basin Stream Class: C Hamett Count

Permit NCO078955
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the 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
CILARACTERISTICS
Limits
Monitoring Requirements
Monthly
Average
Weekly
Average
Daily ..
Maximum
Measurement
Frequency
Sample
T - e -
- Sample Location`'??
Flow
-
WeeklyInstantaneous
Effluent
Total Suspended Solids
30.0
m
45.0 mg/L
2/month
Grab
Effluent
Settleable Solids
0.1 ml/L
0.2 ml/L
WeeklyGrab
Effluent
Turbidity
Weekly
Grab
Upstream &
Downstream
Iron
Weekl
Grab
Effluent
Total Residual Chlorine
17 u
We
Grab
I Effluent
Aluminum
Weekly
Grab
I Effluent
Footnotes:
1. The discharge shall not cause the turbidity of the receiving water to exceed 50 NTU. If the turbidity exceeds
these levels due to natural background conditions, the discharge level cannot cause any increase in the
turbidity in the receiving water.
2. TRC limit takes effect on April 1, 2008. Until then, the Permittee shall monitor TRC with no effluent limit.
All samples collected should be of a representative discharge.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A. (2.) SUPPLEMENTAL NUTRIENT MONITORING REQUIREMENTS
Beginning on January 1, 2009, and lasting until expiration, the Permittee shall monitor discharges for
nutrient as follows:
EFF LUEN f
EFFLUENT LIMITATION`
_sIONITORINC: R: QU71iE--V11NTS
CHARACTERISTICS
Monthly
Weekly
Daily
hTeasurement
Sample
Sample l, �
Average
Average._
Alaximum
Frequency
- Type
TKN (mg/L)
1/month
Composite
Effluent
NO; N+NOZ N(mg/L)
1/month
Composite
Effluent
Total Nitrogen
1/month
Composite
Effluent
(NO=+NO;+TKM (mg/L)
Total Phosphorus (mg/L)
1/month
Composite
Effluent

STATE OF NORTH CAROLINA
'COUNTY OF HARNETT
In the matter of:
Ref ad #: 134010 WASTEWATER PERMIT
I, Suzanne Godwin, being duly sworn, say: that I am
CLASSIFIED ADVERTISING CLERK of THE DAILY RECORD,
a newspaper published at Dunn, Harnett County, North Carolina,
and that the attached clipping is a copy of the Notice
Published said newspaper for 1 days, as follows:
07/07/2006
as required by law in the above entitled suit.
This newspaper is qualified for legal advertising
in accordance with G.S. 1-597 and 1-598.
- -- - ---- -- ---------------
Classifi Advertising Clerk, THE DAILY RECORE
Subscribed and sworn to before me,
this 7th day of July, 2006
_ VI -to- 4 - - ------------
Notary Public
My commission expires
My Commission Expires 02-08.2009
PUBLIC NOTICE
STATE OF NORTH CAROLINA
_ ENVIRONMENTAL MANAGEMENT COMMISSION/NPDES UNIT
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
NOTIFICATION OF INTENT TO ISSUE A
-- NPDES WASTEWATER PERMIT
On the basis of thorough staff review and aF 1cation of NC General Statute
-- - 143.21 Public law 92-500 and other lawful dCand­ s and regulations, the
North Carolina Environmental Management Com' .ssion proposes to issue
a National Pollutant Discharge Elimination System (NPDES) wastewater
discharge permit to the person(s) listed below effective 45 days from the
publish date of this notice.
City of Dunn [805 West E. Street, Erwin, NO 28339] has applied for renewal
permit NCO078955 for its WTP in Harnett County. This permitted facility
discharges filter -backwash wastewater into the Juniper Creek in the Cape
Fear River Basin. Currently total residual chlorine is water quality limited.
This discharge may affect future allocations in this portion of Juniper Creek.
Written comments regarding the proposed permit will be accepted until 30
days after the publish date of this notice. All comments received prior to that
date are considered in the final determinations regarding the proposed
permit. The Director of the NC Division of Water Quality may decide to hold
a public meeting for the proposed permit should the Division receive a signif-
icant degree of public interest.
Copies of the draft permit and other supporting information on file used to
determine conditions present in the draft permit are available upon request
and payment of the costs of reproduction. Mail comments and/or requests
for information to the NO Division of Water Quality at the above address or
call Point Source Branch at [phone], extension 363 or 350. Please
include the NPDES permit number (attached) in any communication.
Interested persons may also visit the Division of Water Quality at 512 N.
Salisbury Street, Raleigh, NO 27604-1148 between the hours of 8:00 a.m.
and 5:00 p.m. to review information on file.
717,2006

o�oF warFRQG
O K
April 24, 2006
MEMORANDUM
To:
Through:
From:
Frances Candelaria
Point Source Branch
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Belinda Henson, Water Quality Regional Supervisor
Fayetteville Regional Office
�,,,,,_,,, w..•Aian�1'.�K1ifi-Flf; P:ff'Director
.� Division of Water Quality
\1 MAY - 1 2006
Chad C. Turlington, Environmental Technician4-
Fayetteville Regional Office
SUBJECT: Minor NPDES Permit Renewal
Dunn WTP
NPDES Permit No. NC 0078955
Harnett County
Please find below, regional comments for the subject minor permit renewal.
Applicant is not requesting modification of the facility or increasing flow at this time.
A rating sheet is not attached as no modifications were made to this facility during the previous permit
cycle.
A review of compliance data did not reveal any significant or repetitive violations.
Based on the last NPDES Compliance Inspection, there are no outstanding repairs or modifications of
the treatment works necessary at this time.
No special conditions, limitations, or monitoring is suggested at this time.
Based on the above information, the Fayetteville Regional Office recommends reissuance in keeping
with the current basin wide strategy.
Cc: Central Files
NO�r�`ltCaro ina
�vaturn�ty
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www ucwaterqualitv.ore Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
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William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
April 24, 2006
Michael Uskiewicz
City of Dunn
PO Box 1065
Dunn NC 28335
SUBJECT: April 21, 2006 Compliance Evaluation Inspection
City of Dunn
Dunn WTP
Permit No: NCO078955
Harnett County
Dear:
Enclosed please find a copy of the Compliance Evaluation Inspection form from the inspection conducted
on April 21, 2006. The Compliance Evaluation Inspection was conducted by Chad Turlington of the
Fayetteville Regional Office. The facility was found to be in Compliance with permit NC0078955.
Please refer to the enclosed inspection report for additional observations and comments. If you or your staff
have any questions, please call me at 910-486-1541 Ext.720.
Sincerely,
Chad Turlington
Environmental Technician
cc: Darryl T Glover, ORC
Central Files
Fayetteville. Files
OEM
1617 Mail Service Center Raleigh, NC 27699-1617 [phone] Customer Service 1 800 623-7748

NPDES yr/mo/day Inspection Type (cont.) 1
3I NCO078955 I11 12I 06/04/21 117 18, C
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
A review of DM R's and lab data for the months of August 200 5 through January 2006 revealed no pe rmit
violations and were consistent. Calibration logs for pH and chlorine were available. Wastewater is primarily
alum sludge from the sedimentation basins and filter backwash water. The wastewater flows into a lagoon.
From the lagoon the wastewater is pumped into a sludge concentrator. Supernatant flows over weir and on
to recieving stream. Sludge is disposed of by land application. Effluent appeared clear at time of
inspection. Outfall well maintained. Records were neatly organized.
Page # 2

r
Permit: NCO078955 Owner -Facility: Dunn WTP
Inspection Date: 04/21/2006 Inspection Type: Compliance Evaluation
Record Keeping
Facility has copy of previous years Annual Report on file for review?
Comment:
Laboratory
Are field parameters performed by certified personnel or laboratory?
Are all other parameters(excluding field parameters) performed by a certified lab?
# Is the facility using a contract lab?
Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
Incubator (BOD) set to 20.0 degrees Celsius +/-1.0 degrees?
Comment:
Effluent Pipe
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating property?
Comment:
Yes No NA NE
0000
0000
■ ❑ ❑ ❑
0000
❑ ❑ ■ ❑
❑ ❑ ■ ❑
Yes No NA NE
■ ❑ ❑ ❑
■ ❑ ❑ ❑
❑ ❑ ■ ❑
Page # 4

CITY OF DUNN
POST OFFICE BOX 1065 • DUNN • NORTH CAROLINA 28335 • [phone] 41
K err
Mayor City Manager
J. Dal Snipes Michael Uskiewicz
Mayor Pro Tern
Donnie Olds
Council Members
Buddy Maness
Bryan Galbreath
Billy Tart
Billy R. Godwin, Jr.
Joey Tart
North Carolina Department of Environment
and Natural Resources
Division of Environmental Management
P.O. Box 29535
Raleigh, NC 27626-0535
Dear Mr. Weaver:
March 29, 2006
Re: City of Dunn
Renewal of NPDES
Permits NCO078955 and
NCO043176
The City of Dunn is hereby requesting renewal of NPDES Permit Numbers NCO078955 and
NC0043176. These permits expire September 30, 2006. Enclosed please find three (3) copies of
NPDES permit renewal applications for both the wastewater and water treatment plants.
In the event that you should have. que90ons or need additional information, please do not hesitate to
give me a call ,
Sincerely,
ApR 3 2006 ` "` CITY OF DUNN
Ronald D. Autry
_ Assistant City Manager/ ublic Works Director
C: File
Imp � 1-r-r

C' *j S/3610 G
NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number INCO078955
If you are completing this form in computer use the TAB key or the up - doom arrows to
field to the next. To check the boxes, click your mouse on top of the box Oahe qge *•in�or
1. Contact Information:
Owner Name
Facility Name
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
e-mail Address
City of Dunn
A B Uzzle Water Treatment Plant
APR-3nos
805 West "E" Street
Erwin
North Carolina 28339
[phone]
[phone]
[e-mail]
2. Location of facility producing discharge:
Check here if same as above ED
Street Address or State Road
City
State / Zip Code
County
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name City of Dunn
Mailing Address PO BOX 1065
City Dunn
State / Zip Code North Carolina 28335
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private ❑ Public
Pagel of3 C-WTP 03/05

t
NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
S. Type of treatment plant:
® Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfection)
❑ Ion Exchange (Sodium Cycle Cationic ion exchange)
❑ Green Sand Filter (No sodium recharge)
❑ Membrane Technology (RO, nanofiltration)
Check here if the treatment process also uses a water softener ❑
6. Description of source water(s) (i.e. groundwater, surface water)
Surface water
7. Describe the treatment process(es) for the raw water:
See attached sheet (Potable Treatment Summary)
S. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
See attached sheet (Physical Chemical Waste Treatment Summary)
9. Number of separate discharge points: I
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ❑ Intermittent
If intermittent:
Days per week discharge occurs: 7 Duration: 2 hrs to 24 hrs
11. Plant design potable flowrate 8.0 MGD
Backwash or reject flow 0.15 MGD
12. Name of receiving stream(s) (Provide a map shouting the exact location of each outfall, including
latitude and longitudeJ.
Juniper Creek
Page 2 of 3 C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
13. Please list all water treatment additives, including cleaning chemicals, that have the
potential to be discharged.
Aluminum Sulfate Coagulant Aid Polymer Praestol 321
Powdered Activated Carbon
Sodium Hydroxide Hydrofluosilic Acid
Sodium Hypochlorite Ortho Polyphosphate
Anhydrous Ammonia
14. Is this facility located on Indian country? (check one)
Yes ❑ No
15. Additional Information:
Provide a schematic of flow through the facility, include flow volumes at all points in
the treatment process, and point of addition of chemicals.
v Solids Handling Plan
16. NEW Applicants
Information needed in addition to items 1-15:
New applicants must contact the NCDENR Customer Service Center.
Was the Customer Service Center contacted? ❑ Yes ® No
v Analyses of source water collected
v Engineering Alternative Analysis
Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a
water quality model.
17. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
Ronald Autry Director of Public Works
Printed -name of Person Sianina Title
Signature of Applicant
-- 7 C-'-
Date
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan, or other document files or
required to be maintained under Article 21 or regulations of the Environmental Management Commission
implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or
monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable
by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both,
for a similar offense.)
Page 3 of 3 C-WTP 03/05

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POTABLE WATER TREATMENT SUMMARY
The City of Dunn has a Conventional Water Filtering Plant that has the capacity to treat
8 Million Gallons Per Day of Water from the Cape Fear River.
The Plants Average Daily Flow over the past 12 months has been 4.138 MGD -
Our Primary Coagulant is Aluminum Sulfate that is added just prior to the Rapid Mix
Chamber, along with a Coagulant Aid Polymer and Sodium Hydroxide when needed as a
Pre -Alkalinity additive. We also add Powdered Activated Carbon to. this Rapid Mix for
use as a Taste and Odor Control. '
The Plant has 2 Conventional Settling Basins with High Rate Tube Settlers.
The Plant has 4 Dual Media Filters with Anthracite capable of Filtering 4 Gallons Per
Minute Per Square Foot.
The top of the Filters is the first injection point for the Sodium Hypochlorite used for the
Plants Primary Disinfection.
Post Filter additional Bleach is added to give us a C12 Residual required to meet our
Ct/99.
Post Filter we also add Sodium Hydroxide for PH control, Ortho-Polyphosphate for
Corrosion control and H2SiF6 as Fluoride for Tooth and Bone protection.
The Treated Water then goes to our 3 Million Callon Bdfled Clearwell and then in series
to our 1 Million Gallon Baffled Clear Well. This 4 Million Gallons -of on site storage
gives us a total of 315 minutes of Chlorine Contact Time.
Prior to the water entering our High Service Pump Well we have the ability to adjust the
Chlorine Residual. and then injecting Anhydrous Ammonia at a 3 to 1 Ttatio to produce
the Chloramines used as our Distribution Disinfectant.
The Combined Chlorine Residual leaving the Plant for Chloramines is typically 4.0 mg/l.
This allows us to maintain a minimum of 2.0 mg/l in the Distribution.

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PHYSICAL CHEMICAL WASTE TREATMENT SUMMARY
During the late 1970's, alum sludge handling facilities were added to
the City of Dunn Water Treatment Plant to decant backwash and basin
blowdown wastewater. The wastewater handling facilities include a large
storage lagoon and a dosing pump station which provides a controlled flow
rate to a sludge concentrator. The concentrated sludge is dewatered using
sand drying beds or co -disposed of in liquid form with liquid wastewater
sludge on properly permitted farm lands. The concentrator clear overflowing
supernate water is discharged into Juniper Creek.
During the early 1990's the water treatment facility was expanded to
its current capacity of eight MGD. This upgrade included the renovation and
expansion of raw and finish water pumping units, the installation of a
vacuum operated sedimentation basin sludge collection system, the
installation of sedimentation basin tube settlers, the high rating of the gravity
filters, chemical feed renovations, etc.
The wastewaters from the sedimentation basin sludge collection
system and the gravity filter backwash waters are transferred to the
previously installed sludge handling facilities. The sedimentation basin
sludge collection system transfers approximately 90,000 GPD of wastewater
to the existing storage lagoon at a 1 % solid concentration. Filter backwash
waters are discharged to the lagoon as necessary and each backwash cycle
waste approximately 50,000 gallons. The accumulated wastewaters in the
storage lagoon are transferred to a sludge concentration unit. The solids are
deposited on drying beds (and or) returned to the waste holding lagoon. The
supernate clear water is returned to Juniper Creek located in the Cape Fear
River Basin. Actual daily flows which may be discharged may be up to
690,000 GPD. The water filtration plant operation uses a conventional
coagulant type system using aluminum sulfate and sodium hydroxide.
Accumulated solids are periodically disposed of by land application of liquid
sludge (co -dispensed with wastewater's sludge) on permitted farm lands.
Approximately 1,938,000 gallons of 3.5% solid sludge was land applied
during the past 12 months.