NC0078955_NPDES Permit_20010924

1
ichael .Ft Easley; ,Governor=�,<
William G- Ross, Jr.', Secretary
regory J. Thorpe Ph.D., Acting . Director
September 24, 2001.
Mr. Joseph Campbell -
.City of Dunn- Water Treatment Plant
P. O. Box 1065
Dunn, North Carolina:„.._ ;.= 28334__
Dear Mr. Campbell:
NORTH CAROLINA.DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Issuance of NPDES Permit
Permit NC0078955
Dunn WTF
Harnett County
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).
If any parts, measurement frequencies, or sampling requirements contained in this permit are unacceptable
to you, you have the right to an adl'udicatory 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] (6714Mail 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 riot 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 ICarliethia Rivers at telephone number
[phone]„ extension 594.
cc: sayette,"ville3Regional—O£fice�W_ater.Qua4t:Sectiont
Point Source Compliance
Central files
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
VISIT US ON THE INTERNET @ http://h2o.enr.state.nc.us/NPDES
L SIGNED BY
SUSAN A. WILSOIN
Gregory J. Thorpe. Ph.D..
'919.733-5083, extension 594. (fax) 919 733-0719
[e-mail]

Permit NC0078955
STATE OF NORTH CAROLINA
PARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
_ In compliance with the provision of North Carolina General Statute 143-215.1, other lawful 'standards and regulations
promulgated and adopted by the North Carolina Environmental Management Commission,and the Federal Water Pollution
Control Act, as amended,
City of Dunn
is hereby authorized to discharge wastewater from a facility located at the
Dunn Water Treatment Facility
805 West "E" Street
East of Erwin
Harnet 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,
II, III and IV hereof.
This permit shall become effective November 1, 2001
- This permit and authorization to discharge shall expire at midnight on September 30, 2006.
Signed this day September September 24, 2001.
ORIGINAL SIGNED BY
SUSAN A. WILSON
Gregory J. Thorpe, Acting Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0078955
SUPPLEMENT TO PERMIT COVER SHEET
City of Dunn is hereby authorized to:
1. Continue to operate an existing drinking water treatment facility with the following
components:
♦ Lined.storage Lagoon
• 9,030 linear feet of sludge drying beds
The facility is located at Dunn Water treatment Facility, on 805 West "E" Street,
east of Erwin, Harnett County (see Part III.A. of this permit).
2. Discharge filter -backwash wastewater from said treatment works at the location
specified on the attached map into Juniper Creek which is classified Class C
waters in the Cape Fear River basin.

County Boundary
Cape Fear Hydrography
Ai Highways
NPDES discharger
Municipal boundary
City of Dunn
Dunn Water Treatment Facility
NC0078955
Harnett County
Facility Information
State Grid: F 24 SW
USGS Quad: Erwin
Subbasin: 03-06-13

Permit NC0078955
(1.)-1:. EFFLUENT LIMITATIONS -AND MONITORING REQUIREMENTS FINAL
During the period beginning on the effective date of the permit and lasting until expansion, the
• Permittee is authorized to discharge from outfall 001. _ Such discharges shall be limited and monitored
by the Permittee as specified below:.
EFFLUENT=x
£
CHARACTERISTICS
fi
{� ,,x, LIMITSh3x}r;
.f 31£ .d 4' V ,t
�n 4
t x_ 3
" II MONITORIN�qG
'k.
REQUIREMENTS
w' .
�h
t .ram .. Y t'+ ice 7q ^a-
Monthly
Average
Weekly
Average
Daily
:Maximum .
Measurement
Frequency3= ,
Sample Types
� z„ n,
fix Sample Location
, __� ' zD Kti
Flow
Weekly
Instantaneous
Effluent
Total Suspended Solids- -=
30.0 mg/L
45.0 mg/L-
- 2/Month -
--- Grab
Effluent
Settleable Solids
0.1 m1L
0.2 ml/L
Weekly
Grab
Effluent
Turbidity
1
1
Weekly
Grab
Upstream & Downstream
Iron
Weekly
Grab
Effluent
Total Residual Chlorine
Weekly
Grab
Effluent
Aluminum
Weekly
Grab
Effluent
Footnotes:
1. The discharge shall not cause the tribidity of the receiving water to exceed 50 NTU. If the tribidity
exceeds these levels due to natural background conditions, the discharge level cannot cause any
increase in the tribidity in the receiving water.
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:

PART I
continued)
Section B. Schedule of Compliance
The permittee shall comply with Final Effluent Limitations specified for; discharges in accordance with
the following schedule:'
Permittee shall comply with Final Effluent Limitations by the effective date of thepermit unless,
specified below. ' •
Permittee shall at all times provide the operation and maintenance necessary -to operate the existing
facilities at optimum efficiency.
No later than 14 . calendar days following a date 'identified in the above schedule of compliance; the
perinittee shall submit either a report of progress or, in the case of specific actions being required by,
identified dates, a written notice of compliance or: noncompliance. In the latter case, the notice shall
include the cause of.noncompliance, any remedial actions taken, and the probability of meeting the next
schedule requirements.

PART II
STANDARD CONDITIONS FOR NPDES PERMITS
SECTION A. DEFINITIONS
1. Permit Issuing Authority: The Director of the Division of Water Quality.
2. DEM or "the Division" Means the Division of Water Quality, Department of Environment and Natural
Resources.
3. EMC Used herein means the North Carolina Environmental Management Commission.
4. Act or "the Act" The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended,
33 USC 1251, et. seq.
5. Mass/Day Measurements
a. The "monthly average discharge" is defined as the total mass of all daily discharges sampled and/or measured
during a calendar month on which daily discharges are sampled and measured, divided by the number of daily
discharges sampled and/or measured during such month. It is therefore, an arithmetic mean found by
adding the weights of the pollutant found each day of the month and then dividing this sum by the number
of days the tests were reported. The limitation is identified as "Monthly Average" in Part I of the permit.
b. The "weekly average discharge" is defined as the total mass of all daily discharges sampled and/or measured
during the calendar week (Sunday - Saturday) on which daily discharges are sampled and measured, divided
by the number of daily discharges sampled and/or measured during such week. It is, therefore, an arithmetic
mean found by adding the weights of pollutants found each day of the week and then dividing this sum by
the number of days the tests were reported. This limitation is identified as "Weekly Average" in Part I of the
permit.
c. The "maximum daily discharge" is the total mass (weight) of a pollutant discharged during a calendar day. If
only one sample is taken during any calendar day the weight of pollutant calculated from it is the "maximum
daily discharge." This limitation is identified as "Daily Maximum," in Part I of the permit.
d. The "average annual discharge" is defined as the total mass of all daily discharges sampled and/or measured
during the calendar year on which daily discharges are sampled and measured, divided by the number of daily
discharges sampled and/or measured during such year. It is, therefore, an arithmetic mean found by adding
the weights of pollutants found each day of the year and then dividing this sum by the number of days the
tests were reported. This limitation is defined as "Annual Average" in Part I of the permit.
6. Concentration Measurement
a. The "average monthly concentration," other than for fecal coliform bacteria, is the sum of the concentrations
of all daily discharges sampled and/or measured during a calendar month on which daily discharges are
sampled and measured, divided by the number of daily discharges sampled and/or measured during such
month (arithmetic mean of the daily concentration values). The daily concentration value is equal to the
concentration of a composite sample or in the case of grab samples is the arithmetic mean (weighted by flow
value) of all the samples collected during that calendar day. The average monthly count for fecal coliform
bacteria is the geometric mean of the counts for samples collected during a calendar month. This limitation
is identified as "Monthly Average" under "Other Limits" in Part I of the permit.

Part II
Page 2of11
6. b. The "average weekly. concentration," other than for fecal coliform bacteria, is the sum of the concentrations
of all daily discharges .sampled ,and/or measured during a calendar week (Sunday/Saturday) on which daily
discharges are sanipled.and measured divided by the number of daily,discharges sampled and/or measured
during such week (arithmetic mean of the daily concentration values). ,The daily concentration value is equal
to the concentration of a composite sample or in the case of grab samples is the arithmetic mean (weighted
by flow value) of allthe samples collected during 'that calendar :day.! The average weekly count for fecal
coliform bacteria is the geometric mean of the counts for samples collected during a calendar week. This
limitation is identified as "Weekly Average" under "Other Limits:'- in Part I of the permit.
c. The "maximum .daily concentration" is the concentration of a pollutant discharge during'a calendar day. If
only one sample is taken during any calendar day the concentration of pollutant calculated from it is the
"Maximum Daily _Concentration". It is identified as "Daily Maximum" uunder "Other Limits" in Part I of the -
,permit.
d. The "average annual concentration," other than for fecal coliform bacteria, is the sum of the concentrations
of all daily discharges sampled and/or measured during a calendar year on which daily discharges are sampled
and measured divided by the number of daily discharges sampled , and/or measured during such year"
(arithmetic mean of the daily concentration values). The daily concentration value is equal to the
concentration of a composite sample or in the case of grab samples is the arithmetic mean (weighted by flow
value) of all the samples collected during that calendar day. The average yearly count for, fecal coliform
bacteria is the geometric mean of the counts for samples collected during a calendar year. This limitation is
identified as "Annual Average" under "Other Limits" in Part I of the permit.
e. The "daily average concentration" (for dissolved oxygen) is the minimum allowable amount of dissolved
oxygen required to be available in the effluent prior to discharge averaged', over a calendar day. If only one
dissolved' oxygen sample is taken over a calendar day, the sample is1 considered to be the "daily average
concentration" for the discharge. It is identified as "daily- average" in the text of Part I.
f._ The "quarterly average concentration" is the average of all samples taken over a calendar quarter. It is
identified as "Quarterly Average Limitation" in the text of Part I of the permit.
g. A calendar quarter is defined as one of the following distinct periods: January through March, April through
June, July through September, and October through December.
7. Other Measurements
a. Flow, (MGD): The. flow limit expressed in this permit is the. 24 hours average flow,averaged monthly. It is
determined as the arithmetic mean of the total daily flows recorded during the calendar month.
b. An "instantaneous flow measurement" is a -measure of flow taken at the time of sampling, when both the
sample and flow will be representative of the total discharge.
c. A "continuous flow measurement" is a measure of discharge flow from the facility which occurs continually
without interruption throughout the operating hours of the facility. Flow shall be monitored continually
except for the infrequent times when there may be no flow or for infrequent maintenance activities on the
flow device.
8. Types of Samples
a. Composite Sample: A composite sample shall consist of
(1) 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

Part II
Page 3 of 11
8. a. (2) 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 present
gallon interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at
the treatment system, or
(3) a single, continuous sample collected over a 24-hour period proportional to the rate of flow.
In accordance with (1) above, the time interval between influent grab samples shall be no greater than
once per hour, and the time interval between effluent grab samples shall be no greater than once per hour
except at wastewater treatment systems having a detention time of greater than 24 hours. In such cases,
effluent grab samples may be collected at time intervals evenly spaced over the 24-hour period which are
equal in number of hours to the detention time of the system in number of days. However, in no case
may the time interval between effluent grab samples begreater than six (6) hours nor the number of
samples less than four (4) during a 24-hour sampling period.
b. Grab Sample: Grab samples are individual samples collected over a period of time not exceeding 15 minutes;
the grab sample can be taken manually. Grab samples must be representative of the discharge or the
receiving waters.
9. Calculation of Means
a Arithmetic Mean: The arithmetic mean of any set of values is the summation of the individual values divided
by the number of individual values.
b. Geometric Mean: The geometric mean of any set of values is the Nth root of the product of the individual
values where N is equal to the number of individual values. The geometric mean is equivalent to the antilog
of the arithmetic mean of the logarithms of the individual values. For purposes of calculating the geometric
mean, values of zero (0) shall be considered to be one (1).
c. Weighted by Flow Value: Weighted by flow value means the summation of each concentration times its
respective flow divided by the summation of the respective flows.
10. Calendar Day: A calendar day is defined as the period from midnight of one day until midnight of the next day.
However, for purposes of this permit, any consecutive 24-hour period that reasonably represents the calendar day
may be used for sampling.
11. Hazardous Substance: A hazardous substance means any substance designated under 40 CFR Part 116
pursuant to Section 311 of the Clean Water Act.
12. Toxic Pollutant:
Water Act.
A toxic pollutant is any pollutant listed as toxic under Section 307(a)(1) of the Clean
SECTION B. GENERAL. CONDITIONS
1. Duty to Comply
The permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation
of the Clean Water Act and is grounds for enforcement action; for permit termination, revocation and reissuance,
or modification; or denial of a permit renewal application.
a. The permittee shall comply with effluent standards or prohibitions established under section 307(a) of the
Clean Water Act for toxic pollutants and with standards for sewage sludge use or disposal established under
section 405(d) of the Clean Water Act within the time provided in the regulations that establish these
standards or prohibitions or standards for sewage sludge use or disposal, even if the permit has not yet been
modified to incorporate the requirement.

Part II
Page 4of11
1 b. The Clean Water Act provides that any person who violates a permit ;condition is subject to a civil penalty
not to 'exceed $25,000 per day -for each violation. Any person who negligently violates any permit condition
is subject to criminal penalties of $2;500 to $25,000 per day of violation, or imprisonment for not more than
1 year, or both. Any person who knowingly violates permit conditions is subject to criminal penalties of
$5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years; or both. Also, any person
who violates a permit' condition niay be assessed an administrative) penalty not to exceed $10,000 per
violation with the maximum amount not to exceed $125,000. [Ref Section 309 of the Federal Act 33 U.S.C:
1319 and 40 CFR 122.41 (a)] i
c. . Under state law, a civil penalty of not more than ten thousand dollars ($10,000) per violation may be assessed
against any person who violates or fails to act in accordance with the terms, conditions, or requirements of a
permit. [Ref North Carolina General Statutes § 143-215.6A] G
d. Any person may be assessed an administrative penalty by the Administrator for violating section 301, 302-,
306, ,307, 308,. 318, or 405 of the Act, or any permit condition or limitation _implementing any of.such
sections in a permit issued under section 402 of the Act. Administrative penalties for Class I violations are
not to exceed $10,000 per violation, with the maximum .amount of any Class I penalty assessed not to exceed
$25,000. Penalties' for Class II violations are not to exceed $10,000 per day for each day during which the
violation continues, with the maximum amount of any Class II penalty not to exceed $125,000.
2. Duty to Mitigate
The permittee shall take all reasonable steps to minimize.. or prevent any discharge or: sludge use or disposal in
violation, of this permit which . -has a reasonable likelihood of adversely ; affecting human health or the
environment. 1
3. Civiland Criminal Liability -
Except as provided in permit conditions on "Bypassing" (Part II, C-4) and "Power Failures". (Part II, C-7),
nothing in this permit shall be construed to relieve the permittee from any responsibilities, liabilities, or penalties
for noncompliance pursuant to NCGS -143-215.3, 143-215.6 or Section 309 of the Federal Act, 33`USC 1319.
Furthermore, the permittee is responsible for consequential damages, such as fish kills, even though the
responsibility for effective compliance may be temporarily suspended.:
4. Oil and Hazardous Substance Liability
Nothing in this permit shall be -construed -to preclude the institution of any legal action or relieve the permittee
from any responsibilities, liabilities, or penalties to which the permittee is or may be subject to under NCGS 143-
215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the permittee is responsible for
consequential damages, such as fish kills, even though the responsibility for effective compliance may be
temporarily suspended.
5. Property Rights .
The issuance of this permit does not convey any property rights in eitherreal or personal property, or any
exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor
any infringement of Federal, State or local laws or regulations.
6.. Onshore or Offshore Construction
This permit does not authorize or approve the construction of any onshore or offshore physical structures or
facilities or the undertaking of any work in any navigable waters.
. Severability
The provisions of this, permit are severable, and if any provision of this permit, or the application of any
provision, of this permit to any circumstances, is held invalid, the application of such provision to other
circumstances, and the remainder of:this permit, shall not be affected thereby.

Part II
Page 5 of 11
8. Duty to Provide Information
The permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the
Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing, or
terminating this permit or to determine compliance with this permit. The permittee shall also furnish to the
Permit Issuing Authority upon request, copies of records required to be kept by this permit.
9. Duty to Reapply
If the permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the
permittee must apply for and obtain a new permit.
10. Expiration of Permit
The permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization
to discharge beyond the expiration date, the permittee shall submit such information, forms, and fees as are
required by the agency authorized to issue permits no later than 180 days prior to the expiration date. Any
permittee that has not requested renewal at least 180 days prior to expiration, or any permittee that does not have
a permit after theexpiration and has not requested renewal at least 180 days prior to expiration, will subject the
permittee to enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq.
11. Signatory Requirements
All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified.
a. All permit applications shall be signed as follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible
corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in
charge of a principal business function, or any other person who performs similar policy or decision
making functions for the corporation, or (b) the manager of one or more manufacturing production or
operating facilities employing more than 250 persons or having gross annual sales or expenditures
exceeding 25 million (in second quarter 1980 dollars), if authority to sign documents has been assigned or
delegated to the manager in accordance with corporate procedures.
(2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or ranking
elected official.
b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be
signed by a person described above or by a duly authorized representative of that person. A person is a duly
authorized representative only if:
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having responsibility for the overall
operation of the regulated facility or activity, such as the position of plant manager, operator of a well or
well field, superintendent, a position of equivalent responsibility, or an individual or position having
overall responsibility for environmental matters for the company. (A duly authorized representative may
thus be either a named individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Permit Issuing Authority.
c. Certification. Any person signing a document under paragraphs a. or b. of this section shall make the
following certification:
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the information submitted is, to the best
of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fines and imprisonment for knowing violations."

4.
Part II
Page 6of11
12. Permit Actions
This permit may be modified, revoked' and reissued, or terminated for cause. The filing of a request by the
permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned
changes or anticipated noncompliance does not stay any permit condition.
13. Permit Modification, Revocation and Reissuance, or Termination
The issuance of this permit does not prohibit the permit issuing authority' from reopening and modifying the
permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules,, and regulations
. contained in Tide 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code, Subchapter 2H .0100; and North Carolina General Statute `143-215.1 et. al.
14. Previous Permits
All previous National Pollutant Discharge Elimination System Permits issued to this facility, whether for
operation or discharge, are hereby revoked by issuance of this permit. [The exclusive authority to operate this
facility arisesunder this permit: The authority to operate the facility under previously issued permits bearing this
.. number is no longer effective. ] The conditions, requirements, terms, and provisions of this permit authorizing
discharge under the National Pollutant Discharge Elimination System govern discharges from this facility.
SECTION C. OPERATION AND MAINTENANCE OF POLLUTION CONTROLS
1, Certified Operator
Pursuant to Chapter 90A-44 of North Carolina General Statutes, and upon classification of the .facility by the
Certification Commission, the permittee . shall employ a certified wastewater treatment plant operator in
responsible charge (ORC) of the wastewater treatment facilities. Such operator must hold a certification of the
grade equivalent to or greater than the classification assigned to the wastewater treatment facilities by the
Certification Commission. The permittee must also employ a certified back-up operator of the appropriate type
and any grade to comply with the conditions of Title 15A NCAC. Chapter 8G .0200. The ORC of the facility
must visit each Class I facility at least weekly and each Class II; III, and IV facility at least daily, excluding -
weekends and holidays, and must properly manage and document daily operation and maintenance of the facility
and must comply with all other conditions of Tide 15A, NCAC Chapter 8G .0200. Once the facility is classified,
the permittee shall submit a letter to the Certification Commission which designates the operator in responsible -
charge within thirty days after the wastewater treatment facilities are 50% complete.
Proper Operation and Maintenance
The permittee shall at all ;times properly operate and maintain all facilities and systems of treatment and control
(and related appurtenances) which are installed or used by the permittee ,to achieve compliance with the
conditions of this permit. Proper operation and maintenance. also includes adequate laboratory controls and
.appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities
or similar systems which are installed by a permittee only when the operation is necessary to achieve compliance
with the conditions of the permit.
3. Need to Halt or Reduce not a Defense -
It shall not be a defense for a permittee -in an enforcement action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this permit.
4. Bypassing of Treatment Facilities
a. Definitions
(1) "Bypass" means the known diversion of waste streams from any portion of a treatment facility including
the collection system, which is not a designed or established or operating mode for the facility.
(2) "Severe property damage" means substantial physical damage to' property, damage to the treatment
facilities which causes them to become inoperable, or substantial and permanent loss of natural resources
which can reasonably be expected to occur in the absence of a bypass. Severe property damage does not
mean economic loss caused by delays in production.

Part II
Page 7 of 11
4. b. Bypass not exceeding limitations.
The permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but
only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the
provisions of Paragraphs c. and d. of this section.
c. Notice
(1) Anticipated bypass. If the permittee knows in advance of the need for a bypass, it shall submit prior
notice, if possible at least ten days before the date of the bypass; including an evaluation of the
anticipated quality and affect of the bypass.
(2) Unanticipated bypass. The permittee shall submit notice of an unanticipated bypass as required in Part II,
E. 6. of this permit. (24 hour notice).
d. Prohibition of Bypass
(1) Bypass is prohibited and the Permit Issuing Authority may take enforcement action against a permittee
for bypass, unless:
(A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage;
(B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities,
retention of untreated wastes or maintenance during normal periods of equipment downtime. This
condition is not satisfied if adequate backup equipment should have been installed in the exercise of
reasonable engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance; and
(C) The permittee submitted notices as required under Paragraph c. of this section.
(2) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse affects, if
the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph
d. (1) of this section.
5. Upsets
a. Definition: "Upset" means an exceptional incident in which there is unintentional and temporary
noncompliance with technology based permit effluent limitations because of factors beyond the reasonable
control of the permittee. An upset does not include noncompliance to the extent caused by operational
error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance,
or careless or improper operation.
b. Effect of an upset: An upset constitutes an affirmative defense to an action brought for noncompliance
with such technology based permit effluent limitations if the requirements of paragraph c. of this condition
are met. No determination made during administrative review of claims that noncompliance was caused by
upset, and before an action for noncompliance, is final administrative action subject to judicial review.
c. Conditions necessary for a demonstration of upset: A permittee who wishes to establish the
affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or
other relevant evidence that:
(1) An upset occurred and that the permittee can identify the cause(s) of the upset;
(2) The permittee facility was at the time being properly operated; and
(3) The permittee submitted notice of the upset as required in Part II, E. 6. (b) (B) of this permit.
(4) The permittee complied with any remedial measures required under Part II, B. 2. of this permit.
d. Burden of proof: In any enforcement proceeding the permittee seeking to establish the occurrence of an
upset has the burden of proof.

7. Power Failures
The permittee is responsible for maintaining adequate safeguards_. as required by DEM Regulation, Title 15A,
North Carolina Administrative Code, Subchapter. 21:1;:.0124 Reliability, to prevent the discharge of untreated or
. inadequately treated wastes during electrical power, failures -either by means of alternate power sources, 'standby
generators or retention of inadequately treated effluent. i
Part II
Page 8of 11
I
Removed Substances . .
,Solids;. sludges, filter backwash; or other pollutants removed in the course of; treatment or control-ofwastewaters
- shall beutilized/disposed of in, accordance with NCGS 143 215:1 and:in a manner Such -'as to prevent any..pollutant
from such materials from; entering waters of the State or navigable waters of; the,' United States. ..The permittee
shall comply with all. existing federal regulations governing the_disposal of,-Isewage;sludge.,'.Upon 'promulgation of
40 CFR Parr 503, .any permit issued by the Permit, Issuing Authority.. for the utilization/disposal'of sludge, may be
reopened „and .modified, :'or revoked and reissued, to 'incorporate. applicable .requirements- at 40. CFR Part. '503,
The permittee shall comply with applicable:40 CFR--Part 503 Standards for the Use and Disposal of Sewage
Sludge (when promulgated). within the time provided' -in the regulation, even if the permit is not modified to
incorporate the requirement., The permittee.shall t notify.the Permidssuingl Authority of.any significant change in
its sludge use or disposal practices. 1 ,:,
1,
SECTION D. ' MONITORING AND RECORDS
1. -Representative Sampling
Samples collected and measurements taken, as required herein, shall be characteristic -of the volume and nature of
the permitted discharge. -:Samples collected at a frequency less than'daily shall be taken on a day and, time that is
characteristic of the :discharge over the entire period which the sample represents.: All samples" shall be taken at
the monitoring points specified in, this permit and, unless -otherwise specified,' before.theeffluent. joins or is
diluted by any other wastestream, body of water, or substance: Monitoring :points shall not be changed without,
notification to and the approval of the Permit Issuing Authority. j
2. Reporting
Monitoring results obtained during the previous month(s) shall.be summarized for each month and reported on a
monthly Discharge Monitoring Report (DMR) Form (DEM .No. MR I;1.1, 2; 3) or alternative forms approved by
the Director, DEM, postmarked no later than the 30th day following the c jmpletedreporting period.
The first DMR is due on the last day, of, the month following the issuance of:the permit or in the case of a' new
facility, on the a last day of the month following 'the commencement of discharge. Duplicate signed copies of
these, and all other reportsrequiredherein, shall be submitted to the following:address:
NC DENR / Division of Water Quality / Water Quality Section
ATTENTION: Central Files.
1617 Mail Service Center
,'Raleigh, North Carolina 27699-1617
'Flow Measurements ' -
Appropriate flow measurement devices and methods consistent' with accepted'; scientific practices shall' be selected
and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The
devices shall be installed, calibrated` and maintained to ensure ;that the -accuracy:.of the -measurements are`
consistent with the accepted capability of that type of device. Devices selected shall be capable" of measuring
flows with a.maximu"m deviation of less than 10% from the true discharge rates throughout therange of expected
discharge volumes:; Once=through condenser cooling water flow -which his monitored by pump logs, or pump
hour meters as specified in Part I :of' this permit :and. based' onthe manufacturers' pump curves shall not be
subject .to this requirement.` .

Part II
Page 9 of 11
4. Test Procedures
Test procedures for the analysis of pollutants shall conform to the EMC regulations published pursuant to
NCGS 143-215.63 et. seq, the Water and Air Quality Reporting Acts, and to regulations published pursuant to
Section 304(g), 33 USC 1314, of the Federal Water Pollution Control Act, as Amended, and Regulation 40 CFR
136; or in the case of sludge use or disposal, approved under 40 CFR 136, unless otherwise specified in 40 CFR
503, unless other test procedures have been specified in this permit.
To meet, the intent of the monitoring required by this permit, all test procedures must produce minimum
detection and reporting levels that are below the permit discharge requirements and all data generated must be
reported down to the minimum detection or lower reporting level of the procedure. If no approved methods are
determined capable of achieving minimum detection and reporting levels below permit discharge requirements,
then the most sensitive (method with the lowest possible detection and reporting level) approved method must
be used.
5. Penalties for Tampering
The Clean Water Act provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any
monitoring device or method required to be maintained under this permit shall, upon conviction, be punished by
a fine of not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or
by both. If a conviction of a person is for a violation committed after a first conviction of such person under this
paragraph, punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of not more
than 4 years, or both.
6. Records Retention
Except for records of monitoring information required by this permit related to the permittee's sewage sludge use
and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40 CFR
503), the permittee shall retain records of all monitoring information, including all calibration and maintenance
records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports
required by this permit, for a period of at least 3 years from the date of the sample, measurement, report or
application. This period may be extended by request of the Director at any time.
7. Recording Results
For each measurement or sample taken pursuant to the requirements of this permit, the permittee shall record
the following information:
a. The date, exact place, and time of sampling or measurements;
b. The individual(s) who performed the sampling or measurements;
c. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
8. Inspection and Entry
The permittee shall allow the Director, or an authorized representative (including an authorized contractor acting
as a representative of the Director), upon the presentation of credentials and other documents as may be required
by law, to;
a. Enter upon the permittee's premises where a regulated facility or activity is located or conducted, or where
records must be kept under the conditions of this permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this
permit;
c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices,
or operations regulated or required under this permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise
authorized by the Clean Water Act, any substances or parameters at any location.

Part II
Page 10 of 11
SECTION E REPORTING REQUIREMENTS
1. Change in Discharge
All discharges authorized herein shall be consistent with the terms and, conditions of this permit. The discharge
of any pollutant 'identified in this permit more frequently than or at a level in excess of that authorized shall
constitute a violation of the permit. " -
2. Planned Changes i ,
The permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions
to the permitted facility. Notice is required only when:
a. The alteration or addition to a permitted facility may meet one of the' criteria for determining whether a
facility is a new source in 40 CFR Part 122.29 (b); or
b. The alteration or addition could significantly change the nature or increase the quantity of pollutants
discharged. This notification applies to pollutants which are subject I neither to effluent limitations in the
permit, nor to notification requirements under 40. CFR Part 122.42 (a) (1)...
c. The alteration or addition results in.a significant change in the permittee's sludge use or disposal practices,
and such alternation, addition or change may justify the application of permit conditions that are different
from or absent in the existing permit, including notification of additional use or disposal sites. not reported
during the permit application process or not reported pursuant to an approved landapplication plan.
3. Anticipated Noncompliance
The permittee shall give advance notice to the Director of any planned changes in the permitted facility or activity
which may result in noncompliance with permit requirements.'
4. Transfers i.
This permit is not transferable to any person except after notice :to the'; Director. The Director may require
modification or revocation and reissuance of the permittee and incorporate s ch other requirements as may be
necessary under the Clean Water Act.
5. Monitoring. Reports
Monitoring results shall be reported at the intervals specified elsewhere in this permit.
a. Monitoring results must be reported on a Discharge- Monitoring Report (DMR) (See Part II. D. 2 of this
permit) or -forms provided by. the Director for reporting results. of monitoring of sludge use. or disposal
practices.
b. If the permittee monitors any pollutant more frequently than required by the permit, using test procedures
specified in Part II, D. 4. of this permit or in the case of sludge use or disposal, approved .under 40 CFR 503,
or as specified' in this 'permit, the results of this monitoring shall be included in the'calculation and reporting
of the data submitted in the DMR.
c. Calculations for all limitations which require averaging of measurements shall utilize an arithmetic mean
unless otherwise specified by the Director in the p"erniit.
6. Twenty-four Hour Reporting
a. The permittee shall report to the central office or the appropriate regional office- any noncompliance which
may endanger health or the environment. Any information shall be provided orally within 24.hours from the
time the permittee became aware of the circumstances. A written submission shall also be provided within 5
days of the time the permittee becomes aware of the circumstances. The written submission shall contain a
description of the noncompliance, and its cause; the period of noncompliance, including exact dates and
times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and
steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance.

Part II
Page llofll
6. b. The following shall be included as information which must be reported within 24 hours under this paragraph:
(1) Any unanticipated bypass which exceeds any effluent limitation in the permit.
(2) Any upset which exceeds any effluent limitation in the permit.
(3) Violation of a maximum daily discharge limitation for any of the pollutants listed by the Director in the
permit to be reported within 24 hours.
c. The Director may waive the written report on a case -by -case basis for reports under paragraph b. above of
this condition if the oral report has been received within 24 hours.
7. Other Noncompliance
The permittee shall report all instances of noncompliance not reported under Part II. E. 5 and 6. of this permit at
the time monitoring reports are submitted. The reports shall contain the information listed in Part II. E. 6. of
this permit.
8. Other Information
Where the permittee becomes aware that it failed to submit any relevant facts in a permit application, or
submitted incorrect information in a permit application or in any report to the Director, it shall promptly submit
such facts or information.
9. Noncompliance Notification
The permittee shall report by telephone to either the central office or the appropriate regional office of the
Division as soon as possible, but in no case more than 24 hours or on the next working day following the
occurrence or first knowledge of the occurrence of any of the following.
a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of
wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge
digester; the known passage of a slug of hazardous substance through the facility; or any other unusual
circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate
wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass directly to receiving
waters without treatment of all or any portion of the influent to such station or facility.
Persons reporting such occurrences by telephone shall also file a written report in letter form within 5 days
following first knowledge of the occurrence.
10. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33
USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices
of the Division of Water Quality. As required by the Act, effluent data shall not be considered confidential.
Knowingly making any false statement on any such report may result in the imposition of criminal penalties as
provided for in NCGS 143-215.1 (b)(2) or in Section 309 of the Federal Act.
11. Penalties for. Falsification of Reports
The Clean Water Act provides that any person who knowingly makes any false statement, representation, or
certification in any record or other document submitted or required to be maintained under this permit, including
monitoring reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of
not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both.

1
PART III
OTHER REQUIREMENTS
A. Construction
No construction of wastewater treatment facilities or additions to add to the plant's treatment capacity or to
change the type of process utilized at the treatment plant shall be begun until Final Plans and Specifications have
been submitted to the Division of Water Quality and written approval and, Authorization to Construct has been
issued.
B. Groundwater Monitoring
The permittee shall, upon written notice from the Director of the Division of Water Quality, conduct
groundwater monitoring as may be required to determine the compliance of this NPDES permitted facility with
the current groundwater standards.
C. Changes in Discharges of Toxic Substances
The permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe:
a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent
basis, of any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the
following "notification levels";
(1) One hundred micrograms per liter (100 µg/L);
(2) Two hundred micrograms per liter (200 µg/L) for acrolein and acrylonitrile; five hundred micrograms per
liter (500 µg/L) for 2.4-dinitrophenol and for 2-methyl-4.6-dinitrophenol; and one milligram per liter (1
mg/L) for antimony;
(3) Five (5) times the maximum concentration value reported for that pollutant in the permit application.
b. That any activity has occurred or will occur which would result in any discharge, on a non -routine or
infrequent basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the
highest of the following "notification levels";
(1) Five hundred micrograms per liter (500 µg/L);
(2) One milligram per liter (1 mg/L) for antimony;
(3) Ten (10) times the maximum concentration value reported for that pollutant in the permit application.
D. Requirement to Continually Evaluate Alternatives to Wastewater Discharges
The permittee shall continually evaluate all wastewater disposal alternatives and pursue the most environmentally
sound alternative of the reasonably cost effective alternatives. If the facility is in substantial non-compliance with
the terms and conditions of the NPDES permit or governing rules, regulations or laws, the permittee shall submit
a report in such form and detail as required by the Division evaluating these alternatives and a plan of action
within sixty (60) days of notification by the Division.
PART IV
ANNUAL ADMINISTERING AND COMPLIANCE MONITORING FEE
REQUIREMENTS
A. The permittee must pay the annual administering and compliance monitoring fee within 30 (thirty) days
after being billed by the Division. Failure to pay the fee in a timely manner in accordance with 15A
NCAC 2H .0105(b)(4) may cause this Division to initiate action to revoke the permit.

Draft NPDES Permit Review
Subject: I,i:af Nt PDEST,:Perinitl2eyiew
Date: Fi14-Sep2001710:50:22 -0400
From: tty Krasner <[e-mail]>
Organization: NC Dept. of Environment and Natural Resources
To: carliethia rivers <[e-mail]>
Goodmorning Carliethia,
I finished a review of two (2) draft NPDES Permits NC0080560, Town of Erwin WTP and1T.000.7_8955',.
Tfowxi_of Dunn TP-and they looked very good, thank you.
I do have one thing I would ask you to check on priour to issuance of these two permits, and that is
whether monitoring for pH is still required for water treatment plants. I thought there had beena memo
issued from Colleen Sullins that deleted this parameter.
Kitty
1 of 1
09/14/2001 10:53 AM

Fd•w
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Kerr T. Stevens, Director
August 7, 2001
Mr. Joseph Campbell
City of Dunn- Water Treatment Plant
P. O. Box 1065
Dunn, North Carolina 28334
Dear Mr. Campbell:
DENR
NORT
ENVIRON
Subject: Draft NPDES Permit
Permit NC0078955
Dunn WTF
Harnett County
A MENT OF
1RCES_
Enclosed with this letter is a copy of the draft NPDES permit for your facility. I encourage you to review
the draft carefully to ensure thorough understanding of the information, conditions, and requirements it contains.
The draft was prepared following Division guidance for the permitting of,minor facilities in this river basin.
The effluent limits in the draft permit are very similar to limits for your previous permit.
Submit any comments to me no later than thirty days following your receipt of the draft. Comments
should be sent to the address listed at the bottom of this page. If no adverse ,comments are received from the
public or -from you, this permit will likely be issued in Mid -September, with an effective date of October 1, 2001.
594.
If you have any questions or comments concerning this draft permit, call me at [phone], extension
Sincerely, { 1 tp'
Carliethia' Rivers
NPDES Unit
cc: kF;a ;ette ill'e egiQnaliOO:fficel/W,arerA uafay77Section
Point Source Compliance
Central files
NPDES file
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 919 733-5083, extension 594 (fax) 919 733-0719
Visrr us ON THE irrrERNEr @ http://h2o.enr.state.nc,us/NPDES [e-mail]

Permit NC0078955
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
• DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations
promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution
•
Control Act, as amended,
City of Dunn
is hereby authorized to discharge wastewater from a facility located at the
Dunn Water Treatment Facility
805 West "E" Street
East of Erwin
Harnet 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,
II, III and IV hereof.
This permit shall become effective.
This permit and authorization to discharge shall expire at midnight on September 30, 2006.
Signed this day
DRAFT
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0078955
SUPPLEMENT TO PERMIT COVER SHEET
City of Dunn is hereby authorized to:
1
1. Continue to operate an existing drinking water treatment facility with the following
components:
• Lined storage Lagoon
• 9,030 linear feet of sludge drying beds
The facility is located at Dunn Water treatment Facility, on 805 West "E" Street,
east of Erwin, Harnett County (see Part III.A. of this permit).
2. Discharge filter -backwash wastewater from said treatment works at the location
specified on the attached map into Juniper Creek which is classified Class C
waters in the Cape Fear River basin.

Permit NC0078955
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
During the period beginning on the effective date of the permit and lasting until expansion, the
Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored
by the Permittee as specified below:
EFFLUENT',
CHARACTERISTICS
of �'
=�`
.. 3 __ , , .:.._
LIMITS =
..
wr.m� ` 7,
r MONITORING REQUIREMENTS
Monthly r
Average
Weekly:;
Average
, Daily
Maximum.:;
Measurement ;
.;,Frequency { :
Sample Type-
:Sample Location
=
Flow -
`.
Weekly
Instantaneous
Effluent
Total Suspended Solids
30.0 mg/L
45.0 mg/L
2/Month
Grab
Effluent
Settleable Solids .
0.1 ml/L
0.2 mlL
Weekly
Grabl
Effluent
Turbidity
1
1
Weekly
Grab;
Upstream & Downstream
Iron
Weekly
Grab_
Effluent
Total Residual Chlorine
Weekly
Grab1
Effluent
Aluminum
Weekly
Grab;
Effluent
PH2
Weekly
Grabl
Effluent
Footnotes:
1. The discharge shall not cause the tribidity of the receiving water to exceed 50 NTU. If the tribidity
exceeds these levels due to natural background conditions, the discharge level cannot cause any
increase in the tribidity in the receiving water.
2. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be
monitored weekly at the effluent by grab sample
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.

County Boundary
Cape Fear Hydrography
,r-, Highways
o NPDES discharger
Municipal boundary
L: -:l
A
1
City of Dunn
Dunn Water Treatment Facility
NC0078955
Harnett County
0 1 Miles
Facility Information
State Grid: F 24 SW
USGS Quad: Erwin
Subbasin: 03-06-13

DIVISION OF WATER QUALITY
April 12, 2001
MEMORANDUM
TO: Christie Jackson
NPDES Permits
THROUGH: Paul Rawls, Water Quali
Fayetteville Regional Offic
FROM:
regional Supervisor
Hughie M. White II, Environmental Technician
Fayetteville Regional Office/km) S"---
SUBJECT: NPDES Permit Renewal
City_oDunn W reat Treatment Plant
NPDES Permit No C0078955'
Harnett County
Please find below the regional comments for the subject minor permit renewal.
The applicant is not requesting modification of 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 repetitiveviolations.
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.
/hmw
Attachment
cc: %ram
Centrahies

North Carolina
Department of Environment and Natural Resources
Division of Water Quality
Fayetteville Regional Office
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Kerr T. Stevens, Director
March 15, 2001
The Honorable Abraham Oudeh
Mayor, City of Dunn
PO Box 1065
Dunn, NC 28335
SUBJECT: Compliance Evaluation Inspection
City of Dunn WTP
NPDES Permit No. NC0078955
Harnett County
Dear Mr. Oudeh:
ATA
NCDENR
Enclosed is a copy of the Compliance Evaluation Inspection conducted on March 14, 2001.
As part of the .inspection, a. tour of the Water Treatment Plant was conducted. All
observations and recommendations are in Part D. (Summary of Findings/Comments) of this
inspection report. Remember, it is our goal to insure the quality of the surface waters of this State.
Please review the attached report. If you or your staff have any questions do
not hesitate to contact me at [phone].
Sincerely,
zr
Hughie M: White' II
Environmental Technician .
/hmw
Enclosures
cc: • Central files
DWQ NPDES Compliance
225 GREEN STREET _ SUITE 714 / SYSTEL BUILDING / FAYETTEVILLE, NC 28301-5043
PHONE [phone] FAX [phone] WWW.ENR.STATE.NC.US/ENR
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER- 50% RECYCLED/10% POST CONSUMER PAPER
DENR TOLL FREE HOTLINE: [phone]

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Kerr T. Stevens, Director
April 4, 2001
Mr. Joseph Campbell
City of Dunn — Water Treatment Plant
PO Box 1065
Dunn, North Carolina 28335
NCDENR
=NOiT i n
ENvIr{QrMN AFU-AL RESOURCES
-ARTMENT OF
APR 9 2001
FY "E s`TE-VILLE
REG. OFFICE
Subject: NPDES Permit Renewal Application
Permit NC007895,5
City of Dunn- Water Treatment Plant
Harnett County '
Dear Mr. Campbell:
The NPDES Unit received your permit renewal application on April 2, 2001. Thank you for submitting this
package.
The permit renewal for this facility has been assigned to Christie Jackson. This staff member will contact
you if further information is needed to complete the permit renewal. Please note that the NPDES Unit has
several vacant positions. This staff shortage has lasted for over a year and is delaying all permit renewals:
Our remaining permit writers are currently reviewing Authorizations to Construct, speculative limit requests,
major permit modifications and 201 plan updates ahead of permit renewals. This is necessary due to a
variety of factors, including mandatory deadlines in the statutes which govern our program.
If this staff shortage delays reissuance of NC0078955 the existing requirements in your permit will remain
in effect until the permit is renewed (or the Division takes other action). We appreciate your patience and
understanding while we operate with a severely depleted staff. If you have any additional questions
concerning renewal of the subject permit, please contact Christie Jackson at [phone], extension 538.
Sincerely,
n �
Valery Stephens
Point Source Unit
cc: yetteville Regional Office, Water Quality Section
NPDES File
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 919 733-5083, extension 520 (fax) 919 733-0719
VISIT US ON THE INTERNET © httpJ/h2o.enr.state.nc.us/NPDES Valery.Stephens@ncrnail,net

CITY OF DUN
POST OFFICE BOX 1065 • DUNN • NORTH CAROLINA 28335 •
Mayor
Abraham Oudeh
Mayor Pro Tam
Michael H. Womble
Councilmembers
George Robinson -
Carolyn P. McDougal
Paul Bass
Toby Sumner
Joey Tart
Ms. Valery Stephens
DENR-Water Quality Section
Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Dear Ms. Stephens:
March 27, 2001
Re:: Renewal of NPDES Permit No. NC0078955.
is
We are enclosing the following information in regards to this request for renewal of the City of Dunn
Water Treatment Plant NPDES permit: to discharge treated supernate 'waters from our alum sludge
facilities:
Manager
. Dean
• One signed original and two copies of NPDES Permit Renewal Application - Short Form
C.
• . Three copies of a narrative description of our water treatment plant and sludge handling
processes.
• Two additional copies of this letter.
There have been no changes in our operation at the water plant since the permit was last renewed.
if you have any questions, please call me at. [phone].
Sincerely yours,
osepli J. Campbell
Public Utilities Director
Mit

NPDES PERMIT APPLICATION - SHORT FORM .0
`:.For manufacturing or commercial -facilities with a discharge <1 MGD (or.WTPs)
N. C. Department of Environment and Natural Resources-
Division of Water Quality /. NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617 `.
North Carolina NPDES Permit Number. i NC0078955.'
• Please print or type
Applicant and facility producing discharge
. ` Name _City of Dunn
Mailing address'of applicant::_
Street address . Box,1065
City Dunn
State NC.
Telephone: Number
Fax Number
e-mailaddress
Location of facility:.
Street' 805 West "F" Street
City Erwin County Harnett
County Harnett
Zip Code 28335
( 910.) 897-5129
( -910 ) : 892-8871
dunnpwdCa�intrstar:net
State NC Zip Code 28339
Telephone Number . ( 910 ) 897-5129
Standard Industrial Classification (SIC) code(s)
Number of employees: 7
Principal product(s) produced:
Potable Water
Principal raw material(s) consumed: Riverwater, aluminum sulfate, sodium hydroxide, chlorine,
'phosphate, carbon, polymer, ammonia
Principal process(es): Water Treatment Plant
Amount ofprincipal product produced or raw material consumed
(List specific amounts consumed and/or units of production
per Day
per Month
Per Year
Product Produced or Raw Material Consumed
(AVERAGE)
See Attached
Check here if discharge occurs all year'X, or.
Circlethe month(s) in which discharge occurs:
Product Produced or Raw Material Consumed.
(PEAK)
! See Attached
anuary February March
;May.: June July •_ August September October November
Days per,week discharge occurs: ` up to seven
NOTE: If the facility has separate discharge points (outfalls) or multiple industrial processes, include a schematic
"diagram of wastewater flow at the facility.
Version -6-99

NPDES PERMIT APPLICATION '.SHORT FORM C
For manufacturing or commercial facilities with a discharge i 1 MGD (or WTPs)
Types of wastewater discharged to surface waters only (check as applicable):
Discharge per operating day
Sanitary_-. daily. average
Cooling water, etc.,- daily average
Process water -.daily. average
Maximum per operating day ;for
-
total discharge (all types)
Flow;
(GALLONS PER OPERATING. DAY)
Volume.treated before discharging`
1 ;.. (PERCENT) .:
If any of the types of wastewater identified in item 8 (either treated or ui4treted) are discharged to places
other than surface waters, record the amounts) discharged below:.
Municipal sewer system gpd'•.;
Underground well gpd
Septic tank
Evaporation lagoon or pond
gpd
god
Other, specify gpd
umber of separate. discharge points:
ame of receiving stream(s): Juniper Creek
2 > :Does your discharge Contain or is it possible for yourdischarge to contain oneor.more of the followin
substances added asa result of your operations, activities, or processes? :Circle all that apply:..
-ammoniaa `; .. :; beryllium ;:' ..:: cadmium .. chromium
•
nickel',
chlorine (residual
oil and grease
phenols : ` selenium zinc None of the above;
certify that I am familiar with the information containedin the application and that to the best of m
knowledge and belief such information is true, complete, and accurate. i
Mayor
Title
G=:
Signature ot<Applisa , 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 otherdocument files or required to be maintained under Article 21or regulat ons 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 $10,000, or by imprisonment not to exceed six months;;or by both
provides a punishment by a fine of not more than $10,000 or imprisonmentnot more than 5 years, or both, for a similar offense.

Water Produced
Raw Water .
Processed
Flow (MGD)
Average
Peak
Per Day
3.39
5.2
Per Month
101
103
Per Year
1,237 -
1,237
Chemicals Consumed
Chemicals
Consumed
Average/Monthly (LBS.)
. 1
Aluminum Sulfate
' 37,300
Sodium Hydroxide
. 14,827
Chlorine •
4,990
Phosphate • .
;690
•
Carbon
20
Polymer
185
Ammonia
1,050

overflowing supernate.water is discharged to Juniper Creek.
The City of:Dunns water treatment facility is. an eight MGDconventional type treatment facility:
securing it's; raw water from':the Cape Fear River: This facility supplies potable :water to the City of
• Dunn as well as the Town of Benson and other rural regions of .Harnett and Sampson Counties. -The
facility, as originally constructed during the 1960's,included'a raw jwater, pump station, flash mixer,
flocculators, sedimentation basins'. with MUdil drains, gravity sand; anthracite standard rate filters,
clearwell storage, chemical feed equipment, and high service pumping units
During the late 1970's, alum sludge handling facilities were added to the facility 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
liquid form with liquid wastewater sludge on properly permitted farm lands.. The concentrator clear
,
uring the early 1990's the water treatment facility was expanded, to its current capacity, of
eight MGD This upgrade include .the -,renovation and expansion of raw.and finish water pumping
units, the, installation of a vacuumoperated sedimentation basin. s udge collection system, the
I-•
installation of sedimentation basin tube settlers, the high rating o4the gravity filters, chemical feed .:
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 sludgecollection system transfers approximately 80000 GPD of wastewater .to
the existing storage lagoon at 1 %solid concentration.,filter backwash waters are discharged to the
;lagoon as necessaryand . each :-'backwash cycle :waste approximately '50,000 gallons::

�zr
accumulated wastewaters in the storage lagoon aretransferred to a sludge concentration unit which
has a flow through rate of approximately 250 GPD. The supernate clear water is returned toJuniper.
Creek located in the Cape Fear River Basin. Actually daily flows whicft may be discharged may be
;
up to 200,000 GPD., The, water filtration plant, operation employees a Conventional, coagulant type
system using aluminum sulfate and sodium hydroxide. Accumulatedsolids are periodically disposed
of by land application of liquid sludge (co -disposed with wastewater'§ sludge) on permitted farm
lands. Approximately 400,000 gallons of 6.2% solid sludge was land, applied during the past 12
months.