HISTORICAL BEFORE 2000

SOC PRIORITY PROJECT: Yes .No X'
If Yes, SOC No.
To: ;Permits and Engineering Unit.
Water Quality Section
Attention: Susan Robson.
Date November 16, 1995
NPDES STAFF REPORT AND RECOMMENDATION
County Harnett
Permit No. NC_---.6078955-
PART I GENERAL 'INFORMATION
1. Facility and Address:
�C:ty of..._Dunn Water P'1'ant
PO Box 1065
Dunn, NC ' 28334
2. Date of Investigation: June 7, 1.995,!
3. Report Prepared by: D.T. Jones, Chemist
4. Persons Contacted and Telephone Number:I
Victor Quick: [phone] 1
•
5. Directions to Site:
From the intersection of Hwy 217Iand.:E'Street,-take
Street. ,
6. Discharge Point(s), List for all discharge points:
Latitude: 35°19'30" Longitude:78°41 .50'
Attach a'USGS map extract and indicate treatment facility
site and discharge point on map.
U.S.G.S. Quad No. F 24 SW U.S.G.S. Quad Name Erwin, NC
7. ,Site size and expansion area consistent with application ?
X Yes No If No, explain. 5 acres
8._.;Topography (relationship to flood plain included._):
Gently rolling

PART - GENERAL INFORMATION (continued)
9. Location of nearest dwelling:,
+ 1000 feet
10. Receiving stream or affected surface waters: Juniper Creek
a. Classification:.
b. b. River Basin and Subbasin No.: 030613
c. Describe receiving stream features and pertinent
downstream uses:
,
Fish and wildlife propagation
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: 0.2
MGD(Ultimate Design Capacity)
b. What is the current permitted capacity of the Waste
Water Treatment facility?
No limit
c. .Actual treatment capacity of the current facility
(current design capacity)?
Unknown - but more than adequate
d. Date(s) and construction activities allowed by previous
Authorization to Construct issued in the previous two
years: N/A
e. Please provide a description of .existing or
substantially constructed wastewater treatment
facilities:
Holding lagoon, sludge concentrator, and •sludge
drying beds.
f. Please provide ,a description of proposed wastewater
treatment facilities: N/A
,41. Possible •toxic impacts to surface waters: None

PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
(continued)
h. Pretreatment Program (POTWs only)':N/A
in development approved
should be required
not, needed
Residuals handling and utilization/disposal scheme:
Landfill
a. If residuals are being land applied, please specify DEM
permit no. N/A
Residual Contractor N/AI
Telephone No.
b. Residuals stabilization:
PFRP
c. Landfill: Yes
PSRP I N/A'
- Other'
d. Other disposal/utilization scheme (Specify): N/A
1
3. Treatment plant classification (attach completed rating
sheet): I
4. SIC Code(s):
Wastewater Code(s) of actual wastewater, not particular
facilities i.e.., non -contact cooling water discharge from a
metal plating company would be 14, not 56.
Primary 4944 Secondary 2
Main Treatment Unit Code:
PART III - OTHER PERTINENT INFORMATION '
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals only)?
N/A

PART III - OTHER PERTINENT INFORMATION
(continued)
•
2. Special monitoring or limitations (including toxicity)
requests: N/A
3. Important SOC, JOC or Compliance Schedule dates: (Please
indicate) N/A
Submission of Plans. and Specifications
Begin Construction N/A
Complete Construction
Date
4. Alternative Analysis Evaluation: Has the facility evaluated
all of the non -discharge options available. Please provide
regional perspective for each option evaluated.
Spray Irrigation: N/A
Connection to Regional Sewer System: N/A
Subsurface: N/A
Other disposal options: N/A No
5. Other Special Items: N/A No
PART IV - EVALUATION AND RECOMMENDATIONS
It is the recommended that WWTP Permit No. NC0078955 be
renewed.
/IA/P.)
Signature of rep t preparer
Water Quality Regional Supervisor
Date

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: City of Dunn LITP
Owner or Contact Person: Mr.
Mailing Address: Box 1065
County: Harnett
Present Classification: I
NPDES Per. No. NCO() 78955
Rated by: D.T. Jones
Reviewed by: Health Dept.
Regional Office
Central Office
ORC: Victor Quick Grade: III
Oscar Harris
Telephone:
New Facility Existing Facility X
Nondisc. Per. No.WQ • Health Dept.Per No.
Telephone: [phone] Date: June 7, 1995
Spray Irrigation
Wastewater Classification: (Circle One) OI 11 III IV
Check Classification(s): Subsurface
Telephone:
Telephone:
Telephone:
Telephone: [phone]
Land Application
Total Points:
14-F ANlT PROCESSES AND RELATED CowROL EOUPMENTT WHICH ARE AN NTEGRAL PART OF INDUSTRIAL PRODU TIDN SHALL NOT BE
CONSIDERED WASTE TREATMENT FOR THE PURPOSE OF CLASSIFICATION. ALSO SEPTIC TANK SYSTEMS CONSISTi G ONLY OF SEPTIC TAN(
AND GRAVITY NETRFICATiON LINES ARE EXEMPT FROM CLASSIFICATION
SLESURFACE CLASSIFICATION
(check all units that apply)
1. septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4sand titters
5. grease traplinteroeptor
6`_oWwater separators
7. gravity subsurface treatment and disposal:
6. pressure subsurface treatment and disposal:
SPRAY IRRIGATION CLASSIFICATION
(check all units that apply)
1preliminary treatment (definition no. 32 )
2. lagoons
3. septic tanks
4. pump tanks
5. pumps
6`_sand filters
7. grease trap/interceptor
6. oil/water separators
9e disinfection
10. chemical addition for nutrient/algae control
11. ,spray irrigation d wastewater
In addition to the above elasslfiestions, pretreatment of wastewater In excess of these components shell
be rated using the point rating system and will require an operator with an appropriate dual certification.
• LAND APPLICATION/RESIDUALS CLASSIFICATION (Apples only to permit holder)
1. Land application of biosolids, residuals or contaminated sobs on a designated site.
WASTEWATER TREATMENT FACILITY ClAS9FGA flON
The following systems shaft be assigned a Class I classification, aalasa the flow lo of a significant quantity or the technology is unusually
complex, to require consideration by the Commission on a case -by -case basis: (Check If Appropriate)
1. OWwater Separator Systems consisting only d physical separation, pumps and,'disposai:
2. Septic Tank/Sand Filter Systems consisting only of septic tanks, dosing apparatus, , purraps,sand tillers, disinfection
and direct discharge;
Lagoon Systems consisting only at prsraminary treatment, lagoora, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, end &ecl discharge;
4� Closed -loop Recycle Systems;
5Groundwater Remediation Systems consisting only d oWwater separators, pumps, sir -stripping, carbon adsorption, disinfection
end disposal;
6, Aquaculture operations nth discharge to surface waters;
7. X Water Plant sludge handling and back -wash water treatment;
5`Seafood processing consisting d screening and disposal.
0, ,Single-family discharging systems. with the exception of Aerobic Treatment Units, wit! be dassiraed if permitted after July 1.
1993 or N upon inspection by the Division, II is found that the system is not being adequately,operat.d,or maintained. Such
systems will be notified of the classification or reclassification by the Commission, In waiting':.

• The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
ITEM
POINTS
(1) Industrial Pretraatmwrt Units or Industrial Pretreatment Program (tea definition No. 33) ».«,,.......4
(2) DESIGN FLOW OF PLANT IN gad (rot applicable to ron.00rnaminated cooing waters, sludge handing facilities for
water purtication plants, totally dosed cycle systems(see definition No. 11), and facilities oonsisling only N kom
(4Xd) or hems (4)(d) .and (11)(d))
0 - 20.000 ». ».»..»..»�...„._.....»»... » ._»�._......»«....««...._.. ».»..»»_. 1
20,001 • 60,000.» ....._.............»«... • .».«.».....».»«.»..»..»._.....«..»....««....»........._...»_..2
50.001 • 100.000......».«.........«.........................._....................._.,„,....»............«._.........».,,__..„.....3
100,001 250.000.....................»..»_.........».»_»..«....»_...„..»...»._...._..„....-»......._«......._........._..•».4
250,001 - 500,000.....,...»._..»........»..«.».......»..............»..............................................»:...»..5
600.001 - 1,000,000.. .»..--»__.....,..„....«.......:..:...:_.»..._w.»,«,,,«,.,............•.....,......«..»..» .6
1.000.001 - 2,000,000.. ... 10
. 2.000.001 (and up) rate 1 mire additional for each 200.003 COcapaehy up�l a maximum of »__._..._30
Design Flow (gad
(3) PREUMNARY LRVrTS/PROCESSES (e.s definition No.32)
(a)Bar Serous ..•..•_..........»....». - »..»».......... .» 1
OT
(b) Mechanical Screens. Stalin Screams or Comminuting Devices...___._.»»—_._.».__.:.._._....»._....-. 2
(a) Gl Removal..»...._.._«....«.»............_......»...»....»..» ........... .»«....«...»........«.. 1
Or •
(d) Vacherie& or Mr>ded Cad Removal...».».«.»,...»......».».»............_.._»..»».....»».»..........». 2
(a) Flow Meowing Dswrioe_............».»..:.......»....»...._....»»...._...»...»....».... .«....»...._».......»1
Or
(1) instrumented Flow Measurement..._..».....».....:»........_... »...._ ... 2
(g) Pressration ..........»..»........�.............».._»_....»_..»..._»..»...».»»»...»»..» 2
(h) Influent Flow Equalization. » » ...»_........... »._....»......_.»...».»...._..................2
(I) Greets. o► OII Saparatots • Gravity._» _.._........_. _..» .. _... _..._ »_....„.._.........:.._...._..._..._...�..._...2
Dissolved Alr Flaallon._......»......».».»........»»..:_....._.........»...._..•.•._.».»....»....................._.......»....»...2
(1) Prochlorinatbn ..... »....„.»....:...._.»... »:_...._...„««».....«...»...»..«...».... 5
(4) PRmorrrREATMBJr 1l4trsIPFDCESSES . .
(a) Septic Tank (sae deikdtbn No. 43)...._..«.._.._._...... __•..„.,..»..».»..»..»......»_.,•:•»..................2
(b) Imhoff Tank.».....�...........»...»._._.» .....» ».... 5
(a) Primary ClarMlars..»..„.... 5
(d) Settling Ponds or Settling Tanks for inorganic Non•toxlc Materials (sludge handling facilities for water
purification purls, sand. gravel, stone, and other mining operations except recreational activities such u gem
or gold mining) ...».........»......... .. ..... _...»....»......»..„»............... _.»..»......._...»•..._•........,„...»_•.»»2
(5) secceckFiYTFiEATMt3vR
(a) Carbonaceous Stage
(I) Aeration -High . Purity. Oxygen. Syst.m.........._....»»........ »..._.»„.»._••.....•.»._•»....».•..»20
Diffused Air System »._.»._....__..»».......»....»....»»......».._....1 o
•
Mfachantcal Alr System (Il:ed, floating or rotor)_..._...__..._.._..-».__._......._..._..._...d
Separate Sludge R.asra3bn...._..»..„.......»..»... .» .»».».».«..»»....„ 2
(if) Trickling Rlar
HighRat.......»_..................».«...».__....._».»._.»»»...._..»»...:_«................__.7
StandardRat....»......»....»«.•....».»»....._....»....»....»....»»...»....«........ 5
.Packed Tower .,. 5
(IY) Bbbglcai Aerated Filter or Aerated Biological Filter__.___.„_.___._»_.__.___.__..__.__.10
(Iv) Aerated Lagoons.....»...»»........»....».........»„...._..».....».......10
(v) Rotating Btobgieal Contactors. 10
(v1) Sand Fitters -Intermittent biological .......»...»_..._ ... .w.»...» .»...... 2
Recirculating biological..... ,»..».....,...» » .. .2
Oil) (vil) Stabilization Lagoorte»...._.„...»........„....»».»»...._.»..» .».».»........»..».»...». 3
(vl3I) Cairo.. 5
(Is) Single stago system for oorrbh.d carbonaceous removal d SOD and nhrog.rous mmoval by
nitrification (see definition No. 12)(Points for this Um haw to bis in addition to kerns
(5)00(1) through (5)(a)(viil),
witting the extended aeration process (s.. definition No.3a) 2
utilizing other than the .:tended seraUon process..».._..,._.».._...,._................_............0
(a) Nutrient additions to enhance BOO removal_..._.».........»._.»....»» ................_...»»..„5
(b) (Hn)ogenous Stage Biological Culture ('Super Bugs' addhion........._.»._.............»».....».....»..»».».»».....»».6
(I) Aersllon - High Purity Oxygen System. _..20
Mechanical Air System (find.,floating or rotor)_...„.__...... •.„..._„...._..r._.,_« .,..«.._,
S.parat. Sludge R.a.ration._....».«......_....„»....... »•««.••....«......•,.•,.••.«.«.»_.••..„... 3
(h) Trickling Finer -High Rate..._.............»»»..„.._....._...._....».».._.._._......................_....,,7
Standard Rate........._..._..:...._».....»._.........»..._...............»...................»...•.»......»5
Packed Tower.. ....»»»..�._ ......._..._»5
(111) $bbplcaI A.rat.d Flher or A.rat.d Blobgleal Flh.r..__.�_�.�.�._„�_._�___ __10
(Iv) Rotating Biological Contactors ...»».«».».».•.......»........».»...__••.:.,,«••,..»_....»...».«10
(v) Sand Filter • Interminers bbioglcat.. ... — -2
Recirculating biological ,3
(6) TEiiT1AR1OR iAD'ANCEDTFiEA7M9 TLNITS'PiCCE SES ••..•. .5
(a) Activated Carbon Beds -
without carbon regerurdlon......_._»_._._......»_......._....«_•....•_•.........r.........«a
• with carbon regeneration 16
(b) Powdered or Granular Actkated Carbon Fled •
without carbon repersratMm.._.......................__.. _...._.....,...»«»5'
with carbon regeneration — ,,,,,, ,_,.,,,,,.•,...._.�...__t b
(a) Air stripping......___..._..._ «...... _....� —5
(d) D.nhrificatbn Proms _. _•,........_.____..._ .__._._._......».«...... »10
(a) Electrodialysle. _..••••• .._..•._.•._•...__.«,_..,.__..........••,•......._.....•••••. ..,.......» ••...,.•,..5
(I) Foam S.para1bn..,«_«._.. ......,_.,.•.,„..«............»...._..........__,_._..•...«..............._„.3
(g) ion Exchange....._._«.._.._.._.» ._» «. ».»..... ..„ ..� .5
(h) Land Application of Treated Effluent (see�delWtion No. 22b) (rot applicable lbr sand. .v
....�0, Mon. A
and other similar mining; operations) by high rate NMtratlon.„—_.._......::.,:::
(1) Microscreens _
U) Pt sphorous R.movai Bio Mat Processes See definition No. 20---.a:. «.,..:,......_ ...�«« ...._20
(a) Pollehfnp Ponds by
tat a�iration._ ( )...� w_�»M�».— ,�._.....„«2
with aeration ,,. 5

Ili rwh ne11•11Y11 - WbiVT - ••• AP
diffused
or mechanical .... •2
(m) Reverse Osmosis.. .._ ....». ..•»....................»»... ....._»..-3
(n) Sand or Mixed -Media Fitters • •low rate.. »»•._. :._ ..»...._. ..._...__-._...._. _ ..._..._........2
. high raj; ». ........_......»....»... 5
(o) Treatment processes for removal of metal or cyanide..»......»....»......._..._....._._.15
(P) treatment processes for removal of toxic materials other than metal or cyanide_.__.»_.__.__—»_.-_..._._.15
(7) 1BJ. ETREATMENT i'
(a) Sludge Digestion Tank - Heated (anaerobic)......_....»._....». _.. 10
Aerobic__..»......».»...»..»......».».».»».....»».,.....»....».............»»... _». 5
- Unheated (anaerobic) - 2
(b) Sludge Stabilization (chemical or thermal) ». .»_.... ...» »5
(c) Sludge Drying.Beds - Gravity...»-»».•.». .2
• Vacuum Assisted....._._.»_».».»..»».»....». 5
(d) Sludge Elutriadon - . 5
(e) Sludge Condhloner (chemical or thennai)...»..._...»••..............._..._:.........»......»».......»-_..-...._»-.-.............5
(f) Sludge Thickener (gravity) ••5
(g) ' blssoNed Ak Flotation Unit (not applicable to a unit rated !is (iXi)).....»....... »...»..::...»»..»-.»-_._._._.__....a
(h) Sludge Gas Utilization (Including gas storage) - - 2
(1) Sludge Holding Tank - Aerated ..5
NOn.aerated. • ... ..2
(1) Sludge indnerator (not including activated carbon regeneration) .10
(k) Vacuum Filter, Centrifuge. or Filter Press or other similar dewatering devices. 10
(e) RESIDUALS UTILIZATION/DISPOSAL (k dudng incinerated ash)
(a) Lagoorx......».»....»..........»..._...»._._......... »......................... ......... ....»»..__....»..._.-......._._..... ..........2
(b) Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator -or landfill operator who holds the land application permit
or landfill per NI .»....2
(c) Dedicated Landfiit(burial) by the'permhtee of the wastewater treatment facility..._ ..... ».._........._.....:».._._..5
(9) D6N:ECM:hi
(a) Chlorination..»._._.»...».............................._:............:.........»........................_.»............_._....._...5
(b) Dechlodnation.._....:.._.........».........».»...»..».....». , . 5
,(c) Ozone .»»..»....._..............:............._........».»_.{.»...»..»...........».»...»_............._.......5
(d) Radiation »••-3
(10) CHEMICAL. ADDITION SYSTEM(S) ( see definition No. 9) (rot applicable to chemical additions rated as ham (3)(I). ..
(5)(a)(xl). (6)(a). (6)(b). (7)(b). (7)(e)." (Oa), (9)(b) or (9)(c) 5 points each:, "
List..............._.»....... »._ ....».......»..............»._.»........._.5
' ... ... ' .5
5
....._........»....».................»..•5
(11) AISCB1J NEQIS UNRS+PFCCESSES •..•_..
(a) Hotting Ponds, Molding Tanks or Settling Ponds for Organic or Toxic Materials Inducting wastes from'ttrining
operations. containing nitrogen or phosphorus compounds in amounts significantly greater than is common
for domestic wastewater S
(b) Effluent -Flow Equalization (not applicable to storage basins which are inherent in land application systems)-_2 .
(c) Stage Discharge (not applicable to storage baslrs inherentIn land applcalion systems).._.__.»_..._.__—5
(d) Pumps ... ... .......».........»._.....»................».._2
(e) Stand•By Power Supply. ...... , ....... .»......................»... .» »......». ». ......».»...3
(1) Thermal Pollutbn Control Device ......3
TOTAL POINTS..:.».
CLASSF CATiQ4
Clas 1- .» .5-25 Points
Class I1 ._.».» .. 26.50 Points
Claus 51-65 "Points
ClassN_.»...._...... .»».......... »....»....... »...... »»»..»........ 65-Up Points'
Facilities having a rating of one through four points, khdusNe, do not require a certified operator.
Facilities having an activated sludge process ail be assigned a minimum classffIcation of Class IL
Facilities having treatment prosiness for the removal of metal or cyanide will be assigred a minimum classification of Class IL
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum ctassrtcatbn of Class III.
5004 DEFINMCCIS
The following definhbns shall apply throughout Nis Subchapter. r .
(1) Activated Carbon Beds. A physicaVehemlcal method for reducing soluble organic material from wastewater affluent; The column -type beds used In this
method will have a flow rate varying from two to eight gallons per -minute per square foot and may be either upflow or downllow carbon. beds. Carbon may or
may not be regenerated on the wastewater treatment planet she;,
(2) Aerated Lagoons. A bash in which all solids are maintained in suspension and by which biological oxidation or organic matter k reduced through anhficlaly
accelerated transfer of oxygen on a flow -through basis;
(3) Aeration. A'pronas of bringing about Intimate contact between air or high purity oxygen In a Squid by spraying; ,aghatbn or o fusion (3a) banded
Aeration. An activated sludge process utilizing a minimum hydraulic detsn tlon time of 10 hours
(4)'Agriatkuraty managed site. Any she on which a rasp -is produced, managed, and harvested (Crop iroludes grasses, grains. trees; eta); •
(5) Air Shipping. A process by which the ammonium Ion Is first converted to dissolved ammonia (pH adjustment) with the ammonia then released to the
atmosphere by physical means; or other similar processes which remove petroleum products such as benzene, toluene and xylem;
- (6) Carbon Regeneration The regeneration of exhausted carbon by the use of a furnace to provide extremely, high temperatures which volatilze and "oxidW the
absorbed Impurfdes; - -
(7) Carbonaceous Stags. A stage of wastewater treatment designed to achieve 1sec0ndarr effluent fmke: '
(6). Csr trliuge. A mechanical device In which certtrtfugal force is used to separate solids from liquids or to separate Squids of afferent dsnsbas•
(9) Chemical Addition Systems- The addhlon of chemicals) to wastewater at an application. point for purposes of krQroving soils removal, pH adjustment.
alkalinity control. eta; the Capability to apartment with deferent chemicals and different application points to acfJays a specific result will be considered one
system; the capability to add earnings) to dual unite will be rated as ore system; capability to add a tdemiwl at a different application points for dltferent
purposes will result in the systems being rated as separate systems:
(10) Chemical Sludge Conditioning. The .addition of a chemical compound such as hate. fent chloride. or a polymer to wet sludge to coalesce the mass prior lo
its application to a dewatertng device; .
(11) Closed Cycle Systems. Use of holding ponds or holdng tanks for containment or wastewater containing' inorganic, non-toxlc'.iriatertals from sand. gravel.
crushed stone or other similar cperatfons. Such systems shalt carry ,.maximum of two points regardless of pumping fir ithles or --prey other appurtenances;
(12) Combined Removal of Carbonaceous BOD and Nkrogerous Removal by Nhrlieatbrt• A single stage system required•lb achieve permit effluent limits on BOD
and ammonia nitrogen wItNrt the same biological reactor,
(13) DecNortnatbn. The partial or complete reduction of residual cNortre In a Squid by arty chemical or phyalal process;
(14) Dsnhrlieatbn Process. The conversion of nhrate•nhrogen to nitrogen gas;

(15) Elsctrodaysk Process for removing ionized salts from water through the caw o1 ion-i fo v bn-exchange membranes;
(16) Mier Press. A process operated medhanlcally for partially dewalerfnp sludge;
.(17) Foam Separation. The planted frothing of wastewater or wastewater affluent as a means of removing exoesshw amounts of detergent matartal9 tMaogh
tit Introduction of all In the form of fee bubbles; also called foam fractionation;
(16) GA Removal. Tie process of removing get and other heavy mineral manor from wastewater,
(19) Imhoff Tank. A deep two story wastewater tank consisting of an upper sedimentation chamber and a lower sludge digestion Chamber.
(20) Instrumented Flow Measurement. A device which I dicates and records no of l'bw;
(21) ion Escharge. A chemical process in which fors from two difierent moecues are exchanged;
(22) Land appfcatbn:
ja) Shudpa DispoaaL A final sludge disposal method by which wet sludge may be appliod to land Mbar by spraying on the surface Or by subsurface injection
l e , chisel plow) • (not appik abIs for types of akudge described In (11) of Miliaria);
p) Treated Sikora. The process of spraying muted wastewater onto a lard an a or otter methods of application of wastewater onto a land area as a
*oars of final dkposal or Menai;
423)) Microsaeen kw ;pad, continuously back -sashed; rotating drum fWi operating under gravity condkbns as a prating method for removing
suspended solids from effluent;
(24) Moiliwion Pnxssa. The biochemical conversion of unoxidtzed nitrogen (ammonia and organic Ntrogen) to oxidized nitrogen (usually nitrate);
(26) Ntrogennous Stage. A separate stage of wastewater treatment designed ice the apadik purpose of converting ammonia nitrogen to nitrate nitrogen;
(26) Phosphate Removal, BblogicaL The removal of phosphorus from wasiswatw by an cob/anoxic process dsegrsd to enhance luxury uptake of phosphorus
by the microorganisms;
(27) Polishing Pod. A holing .pond following secondary treatmenl with sufficient detention lima to allow settling of finally suspended solids;
(26) Poet Aeration Aeration lohiowing conversions! secondary trimmers unks to Increase affluent D.O. or for any other purpose;
(29) Post Aeration. (Cascade) A polishing method by which d'ssdved oxygen k added to the effluent. by a nonmechanical, gravity means of flowing down a
series of sups or weirs; The flow occurring across tie steps or wets moves in a fairly thin layer and the operation of the cascade requires no operator
adjustment; Mtn, zero points are assigned wen though this is an essential dap to meeting the limits of the discharge permit;
(30) Powdsme to Granular Activated Carbon Food. A biophysical carbon process that utilizes biological activity and organic absorption by using powdered or
granular aethvated carbon; Vkgkn or regensrated carbon k food corsroled into the system;
(31) Prsaaratbn A tank corm: u:lad to provide aeration prior to primary treatment;
(32) Pmlminary Units. Unit operations In the treatment process, such as screening and comminution, that prepare the iquor for subsequent mayor operations;
(33) industrial Pretreatment.
(a) Pre-treatment Urft, Industrial. The corndkbning of a waste at its source before crsc arge. to remove or to neutralize substances Injurious to sewers and
tretrime t processes or to died a partial reduction in bad on the treatment process which is operated by the same governing body as the wastewatar
Mailmen! plant being rated;
b) Pre-treatment Program. industrial - must be a Slats or EPA required program to recent points on tit rating sheet;
(34) Primary Clarifies. The first selling tanks through which wastewater is passed In a trsomers works for the purpose of removing settleable and suspended
solids end BOD which l associated with the colds;
(35) Pumps. All Influent, effluent and in -plant pumps;
(36) Radiation Dien/action or sterilization process utilizing devices emitting ukravblet or gamma rays;
(37) Reveres Osmosis. A treatment process in which a heavy wntarrinatod liquid Is pressurized through a membrane forming many pure iquid free from
suspended solids;
(36) Rotating Biological Contractors. A Iliad biological goteth process in which wastewater flows through tanks In which a series of partially submerged circular
suAaws are rotated;
(39) Sand Fitters:
(a) Intermittent DiabgieaL Filtratbn of affluent following septic tanks, lagoom, or some other treatment proms: In which further bbdecomposilbn k
expected to produce desired effluents; Hydraulic loading rates on these filters are computed in gpdrac and have a resulting low g mini (km than oat);
b) Recirculating biological - the same type of sand flaar as defined in Subparagraph (39) (a) of this Rule with the added capability to recycle effluent back
through the sand liter,
(40) Sand or Mixed -Matra Fliers. A polishing process by which often 'mks an acNsved through a further reduction of susp nded solids;
(a) low rate — gravity, hydraulically loaded finer with loading rates in the one to three go range;
(a} high rate — a pressure, hydraulically loaded fUiar with baring rates In the five nn d range; At any rate, the loading rate sulks exceed three gprrV0;
(41) Secondary Ctardiers. A tank which follows the biological unit of treatment plant and which has the purpose of removing sludges associated with the
biological treatment units;
(42) Separate Sludge Reaerstbn A par of the contact stabilization process where the activated sludge k !restaffed to a tank and aerated befors returning it
to the contact basin;
(43) Septic Tank. A singe -story selling tank In which settled sludge k In contact with the wastewater Sowing through the talc; shall not be applicable for
septic tank systems serving single family residences having capacity of 2,000 gelors or less which discharge to a nitrification field;
(44) Stodge Digestion The process by which organic or volatile matter and sludge Is gasified, iquared, mfrerattzod a consorted into more stable organic matter
trough the activity of living organisms, which Includes serated holing tanks;
(45) Siudga Drying Beds. An area comprising natural or artificial Layers of porous materials upon which digested 'swage @Judge is died by drainage and
evaporation;
(46) Sludge Elutrfatbn. A process of sludge condtioning In which certain sonstkuenls an removed by successive washings with fresh water or plant effluent;
(47) Sludge Gas ,Utllizatbn The process of using wwags gas for the purpose of healing bullrings, driving engines, etc;
(s6) Studgs Hok ing Tank (Aerated and Nonaarated). A tank utilized for small wastewater treatment plants no containing a digester In which sludge may be
kept fresh, and supernatant withdrawn prior to a drying method (i.e. sludge drying beds); This may be done by adding a small amount of air simply to keep the
sludge fresh. but not necessarily an amours that would be required to achieve stabilization of organic matter. A nonaersed tank would gimpy be used to
decant sludge prior to dswataring and would not allow long periods (several days of detention) without resulting odor problems;
(49) Sludge Incinerators. A furnace designed to bum sludge and to remove ail moisture and oombustbls materials and reduce the sludge to a stele ash;
(50) Stu Stabilization (Chemical or Thermal). A process to_ make treated sludge less
odors and putnecbis. and to reduce its pathogenic organism
content; This may be done by pH adjustment. chlorins doskg, or by hat treatment;
(51) Sludge TNdkaner. -A type of sedimentation tank In which the sludge k permitted to with and thicken through agitation and gravity;
(52) Stabilization Lagoon. A type of oxidation lagoon In which biological oxidation of organic matter Is effected by natural trander of oxygen to the water from
all (not a potlshing pond):
(53) Stand -By Power Supply. On aka or portable oedrIn1 generating oqukment;
(54) Static Screen. A stationary women designed to remove solids, Including non-0bdegradabb particulate (?oatabte solids, suspended solids and BOD
reduction) from municipal and Industrial wastewater treatment system;
(55) Tertiary Treatment A. stage of treaunert Wowing secondary which 1s primarily for the purpose of effluent pol*Nng; A selling lagoon or sard or coal filler
might be or pbyed for this purpose;
(56) Thermal Pollution Control Device. A device providing for the transfer of heat from a fluid flowing In tubes to another fluid outside tit tubes, or vbs versa;
or otter mean of regutattng k lufd temperatures;
(57) Thermal Sludge Condtbner. A conditioning process by which heat k added for a protracted period of time to Improve the dewaterab1flty of sludge by the
sotubidzing and hydraukzing d the snuffer and more highly hydrated .sludge panicles;
(55) Toxic Materials. Those wastes or Combiratbn of wastes. Including dkaass-causing agents which afar dac hwge and upon avows, ingestion. Inhalation
or assimilation into any organismh, either directly from the srrvkmmwt or inhdirectiy by ingestion through food chairs, will cause death, disease, behavioral
abnormalities. career, genetic mutations, physbhogtea! maffunesbns (Inducing malfunctions In reproduction) or physical deformations, In such organisms or their
offspring; Toxic matartak include. by way a ilustration and rot Irdtailorr bad. cadmium, chromium, mercury, vanadium, arsenic, zinc, ortho-Ntro-chlorobenzare
(ONCE), poyehfortnated blphenyk (PCBs; and dkchbrodrphryl tlrkhioroathana (DDT); and any other materials that have or may hersafer betdolernfned to have
toxic properties;
(59) Trickling Filter. A bbbgbe trsatmert unit consisting of a notarial such as brokan stone or rock over which wastewater is dsirbuted; A high me tricking
Mar it one which operated at between 10 and 30 mgd par acre. A low rate trickling Mar is one which k designed to operate at one to four mgd par acre;
(Eli) Tricking Mar (Packed Tower). A plug flow type of operation In which wastewater flows down.through successive layers of media or filtrate material; Organic
material k mmwsd corthualy by the acttre biological floe d growth In each successive Layer. This method may produce 'secondary' quality afnuork, or nay bo
adapted to produce a Nulled effluent;
pi) Vacuum Flaw. Centrifuges. or Mar Presses. Devices which am designed to narrow excess water from WMr.dkestad or:Undigested sludge prior to disposal
or further tree msr6

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-State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes,, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Carl Dean
City of Dunn
P. O. Box 1065
Dunn, North Carolina 28334
Dear Mr. Dean:
October 3, 1995
biET-1NJF
RECE
r!. 9 1995
ENV MANAGEMENT k
,FABY'Erl rEIJILLE REG. OFaF;Ii EJ
Subject: NPDES Permit Application
NPDES Permit NC0078955
Dunn WaterlTreatment Facility
Harnett County
This is to acknowledge receipt of the following documents' on October 2, 1995:
• NPDES Permit Application Form
• Request for Permit
• Application Processing Fee of $250.00
I am, by copy of this letter, requesting that our Regional Office Supervisor prepare a staff report
and recommendations regarding this discharge. You will be advised ofijany comments,
recommendations, questions, or other information necessary for the application review. If you
have any questions regarding this application, please contact Susan Robson at [phone],
extension 551.
Sincerely,
JUo (P
David A. Goodrich; Supervisor
NPDES Permits Group .
cc: y_etteville Regional -Office
Permits and Engineering Unit
P.O. Box 29.535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 1O% post -consumer paper

101 00 '00 00:00
014 PO4
i. Principal process Water Filtration Operation
4.tCounty
6. 'ZIP,
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
APPLICATION FOR PERMIT TO DISCHARGE - SHORT FORM C
To be filed only by persons engaged in ■aiufacturing end -.mining
NORTH CAROLINA DEPT. OF NATURAL RESOURCES AND COMMUNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT, P.O. SOX 27687, RALEIGH, NC 27611 •
pc, v ^??
FOR
u'FANCY
Do /Mt attempt to complete this form before reading accompanying instructions
Please print or type
1. Mame, address, location, and telephone number of facility producing discharge
Name City of Dunn. Water Filtration Facility
2. SiC
A.
S.
Mailing address
1.. Street address
'2. City Dunn
4. County
C. Location:
1. Street
.2.•City
4. State North Carolina
PO Box 1065
Harnett
"En Street
Erwin
D. Telephone No, , (919)
Area
Code
892-2.
APPLICATION NUMBER
eI61.C»17V[P [iit
LATE RECEIVED
91_5-1 /i c1G1�'
YEAR 10. MY
North Carolina
3. 'State
s 2iP� 28334
3. county Harnett
(Leave blank)
3. Number.of employees 6
If all your wasteis discharged into a publicly owned waste treatment facility
and to the, best of your knowledge you are not required to obtain a discharge
permit, proceed to item 4. Otherwise proceed directly to item S.
4. If you meet the condition stated above, Check here o and supply the information
asked for below. After completing these items, please complete the Oatei, tiltie,
and signature blocks below and return this form to the proper reviewing', office
without completing the remainder of the form.
A. Name of organization responsible for receiving waste
B.
facility receiving waste:
1. Name
2..Street address —
3. City
5. State
diprincipal product, .0 raw material (Check one) Finish water for;; public use
7. Maximum amount of principal product produced or raw material consumed per; (Check one)
Basis
Amount
1.99
(1)
100.199
(2)
200-499
(3)
600-999
(4)
1000i
49991
(s)
5000.
9999
(6)
10,000-
49.999
(71
. 60,000
or more
(a)
A. Day
X
B. Month
C. fear
X
WWI rlOUti EDITION MAY 'SE VOCD UNTIL $U pp%.Y tS LXI+AUSTED

101 00 '00 00:00
.:n i�4KIMMaa eanunt of principal prndur i. presiu.rd or raw mnlarini ..w. aw.r•.i. rrPol ten
is item /, above, is measured in (Lheck une);
A,o pounds 8.0 tons C.o barrels D. CI bushels
F.o gallons G.O pieces or units N.O other, specify
9. (a) Check here if discharge occurs all year ii, or
(b) Check theaeaonth(s) discharge occurs:
1.o January 2.0 February 3.0 March 4.O April 5.0 May 6.0 June
7_0.1uly . R.DAugust 9.0September 10.1oOcto*er 11,aNov Wiser 12.ODecember
(c) Check how ■any days per week: 1.0 1 2.0 2-3 .3.0 1.5 4.0 6-7
10. Types of waste water discharged to surface waters only (check es epplicab1e)
014 P05
E. D square feet
Discharge per
opereting day
A. Sanitary. daily
average
B. Cooling water, etc.
daily average
C. Process water,
daily_ rv..rage
D. *!mum per operat-
ing day for total
discharge (all types)
Flaw. giilione per operating day
0.1-999 1000.4999
(1)
(2)
10,000-
49,999
(4)
w
50,000-'
or more;
(5)
Volume treated before
discharging (percent)
None 0.1. 30- 6S- 95_
29.9 64.9 94.9 100
• (6) ((7) (8) (9) (10)
Tyr
11. If any of the three types of waste identified in item l0, either Treated or uniieatod,
are discharged to places other than surface waters, check below as applicable)
Average flow, gallons per.ope'rating day
Waste water is
dierharei.d to:
0.1.999
(1)
-
'lO00..4999
(2)
-
5000-9999
(3)
10,000-49,.994
; (4), .
--
50,000 or eort
(s)
A. Municipal sewer system
V
~
B. Underground well
C. Septic tank
.
b. fvapuretion lagoon or pond
I
,
E. Other, specify
•
t.
12. Number of Separate discharge points; A.0 1
B. o 2-3
C. G 4-5
0.0 6 or more
13. Name of receiving water or waters
14. Does your discharge contain or Is it possible for your discharge to contain
one or more of the following substances 49ded as d result of your nperatinns.
activities, or. processes: ammonia, cyanide, aluminum. beryllium, cadmium,
Chromium, copper, lead, mercury, nickel, selenium, zinc, phenols, oil and '
.grease, and chlorine (residual). A.D yes B.cino
T certify that I am familiar with the information contained in 'the application Mandl
that to the best of ry knowledge and belief such information is true, canpletr; and
aCCurite.
Carl G. Dean
Printed Name of Person Signing Ti'�-
09/25/95
Date Application.Signed _ Signature of Applicant .
North Carolina Cameral Statute 143-215.6Sb)(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 knowly 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 pumishable by a fine not to exceed
$10,000, or by imprisonment not to exceed six months, or by both.',1(18 U.S.C. Section 1001 provide!
a punishment by a fine of not more than $10,000 or imprisonment not more than S.yeare, or both,
for a similar offense.) .
t'ty Man:

FACT SHEET FOR WASTELOAD ALLOCATIONS
IN THE CAPE FEAR RIVER BASIN
Subbasin 03-06-13 Cape Fear River Mainstem
The mainstem Cape Fear River originates near the fall line and then flows 170 miles through the
Coastal Plain to Wilmington, with an average fall of 0.94 feet per mile. Stream gradient is higher
down to Fayetteville, where it begins to flatten out. The flat terrain, of the coastal plain results in
many swamp systems, but the main river is not a typical swamp stream. The drainage area of the
mainstem Cape Fear River is about 6,065 square miles.
THE FOLLOWING FACILITIES HOLD INDIVIDUAL PERMITS IN THIS
SUBBASIN:
I. Facilities with an individual Wasteload submitted:
Permit # Facility Name
1. NC0001406 Swift Textiles (Erwin Mills)
2 . • NC0043176 Dunn WWTP
Facilities to be streamlined in this package (all minor):
Permit # Facility Name
NC0064521 Erwin WWTP
'/2 . NC0078955: Dunn W P
3. NC0080560 Erwin WTP
County
Harnett
Hamett
County
Harnett
Harnett
Harnett.
Reviewed by:
Regional Water Quality Supervisor: ► &.. 1_ Date:
Request #
not in yet
not in yet
Reviewer
Robson
Robson
Robson
/qc
Permits & Engineering: Date:
RETURN TO TECHNICAL SUPPORT BY: FEBRUARY 21. 1996:
f=
JAN 29 PR,
ENV. MANAGEMENT
FAYETTEVILLE REG. OFFICE

6.3.7 Recommended BOP and NH3 Strategies for the Upper Cape Fear
Subbasin 13 This subbasin includes the Upper Little River watershed which drains to
the Cape Fear River. There is no interaction between discharges to this low flow stream.
There are no known water quality problems in this watershed - -

FACILITY INFORM
Facility
NPDES No.
Design Flow (MGD)
Facility Class
Staff Review and Evaluation
NPDES Wastewater Permit
ATION
Dunn'Wat_O Treatrrient:Pla tt
NC0078955
N/A
•STREAM CHARACTERISTICS
Stream Name !Juniper Creek
Stream Class ;C
Sub -basin 1030613
Drainage- Area (mi2), I
• S7Q10. (cfs)
W7Q10 ,(cfs) I
30Q2 (cis),
IWC (%),
Proposed Changes
Parameters Affected
Basis for ehange(s)
Addition of TRC, Al, Fe
SOP policy for Water Treatment
facilities
Compliance Schedule. None.
Special Condition(s): None.
Permits & Engineering Comments:
This is a permit for a water treatment plant. Recommend renewal of NPDES permit with
existing limits and with changes noted above.
Prepared by:
Regional Office Evaluation and Recommendations:
Lv. AN, %.

MEMORANDUM
TO:
DIVISION OF ENVIRONMENTAL MANAGEMENT
January,15, 1991
Donald Safrit, Unit Supervisory
Permitting and Engineeri
FROM: M. J. Noland, Regional S-x-I>V44or
Fayetteville Regional Office '
f
SUBJECT: Proposed Discharge NPDES'Eermit_Nol NC0078955
ity of DunniWater Treatment Plant
Harnett County, North Carolina
;
Please find enclosed the staff report and recommendations of the
Fayetteville Regional Office concerning the issuance of an NPDES Permit for
subject facility.
If you have any questions or require any further' iriformation, please
advise.
MJN/AKK/tf
Enclosure
cc: -Technical Support Branch

•
' January 15, 1991
NPDES STAFF REPORT AND RECOMMENDATIONS
. County'Harnett
NPDES Permit No. NC0078955
PART I. GENERAL INFORMATION
1. Facility and Address: City:of Dunn Water
P.O. Box 1065 '
Dunn, NC 28334.
2. Date of Investigation: December 11, 1990
3. Report Prepared By:- Kitty A.
4. Persons Contacted and Telephone
Plant
li
K. Kramer, Env. Tech.!, FRO
Number:. Victor Quick, Chief Operator
James Barefoot, Assist.
Tony Morrison,. Assist.
(919) 89725129
5. Directions to Site: From theintersectionof Hwy. 217 and "E"Street,
take "E"Street west to the water plant.
6. Discharge Point(s), List for all discharge
Latitude: 35°. 19' 30"
Longitude: -78- 41' 50" •
points:
Attach a USGS map extract and indicate treatmentjfacility site and
discharge point on map. •
IiI
USGS Quad Name !Erwin, NC
7. Size (land available for expansion and upgrading):'
'8. Topography. (relationship -to flood plain included):!
9. .dwelling: Less than'1,000 feet.
affected surface waters: Juniper"Creek
USGS Quad No. F 24 SW
Location of nearest
10. Receiving stream or
a.
b.
c.
5
acres.
Gently. sloping.
Classification: "C"
River Basin and.Subbasin No.: - 030613'
Describe receiving stream features and pertinent downstream uses:
Fish and wildlife propagation.

Staff Report and Recommendation
Page 2 i! •
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
•
0 '
1. Type of wastewater: % Domestic
100 % Industrial
a. Volume of Wastewater: 0.2 MGD (Design Capacity)
b. Types and quantities of industrial wastewater: I Treated filter
backwash and settling basin drainage wastewateL
c. Prevalent toxic constituents in wastewater: N/A
d. Pretreatment Program '(POTWs only):
in development N/A approved NAA
should be required N/A not needed N/A
2. Production rates (industrial discharges only) in pounds per day:
a. Highest month in the past 12 months: N/A lbs/day
b. Highest year in the past 5 years: - N/A' lbs/day
Description of industrial process (for industriesponly) and applicable
CFR Part and Subpart: N/A
4. Type of treatment (Existing): The existing wastewater treatment system
' I
consists of a 1.5 MGD lined storage lagoon with 903013aludge drying
i 7- 1E1
beds. Presently, this systerri is being operated asaiclosed recycle
system with supernate from the drying beds returninglto the storage
lagoon and all water from the storage lagoon being pumpedback to the
I I
flash mixers. The City has requested a discharge 'permit so that they
will have the option to discharge the clear water ;from the storage
lagoon as well,as recirculate it back to the flash mixers. The City has.
polymer control that is added to the sludge prior to the placement of
the sludge on the drying bed.-
5. Sludge handling and disposal scheme: Sludge is settled in the storage
lagoon and pumped to the sludge drying beds with final disposal in the
County landfill.
• 'S. Treatment plant classification: Grade.II (see attached rating sheet)
•
7. SIC Code(s):
Wastewater Code(s):Primary 4941 Secondary 21

Staff Report and Recommendation
Page 3
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grants Funds
(municipals only)? N/A
2. Special monitoring requests: No. I'
3. Additional effluent limits requests: No.
4. Other:
PART IV - EVALUATION AND RECOMMENDATION,
i,
L
Signature of Report Preparer
Water Quality Regional Supervisor
Date

XIE1117,1E1)
JAN 1.1 1991
DAVIS. - MARTIN-- POWELL & ASSOCIATES, INC.- -
ENGINEERING + LAND PLANNING • SURVEYING ENV. MANAGEMENT
218 GATEWOOD AVENUE : SUITE 102 FAYETTEVILLE REG. OFFICE
HIGH POINT, NC 27260 ;
PHONE [phone] •. FAX (919)!886--4458
January •8,.1991
Re: City of: Dunn, NC
Water Treatment Facilities
NPDES Permi-t Application
Our Job No; E-1290
Ms. Kitty Cramer
Fayetteville Regional .'Office`
Division of Environmental Management
Wachovia- Building - 'Suite-714
Fayetteville, NC 28301 .-
Dear Ms. Cramer:
We are enclosing three copies of a revised partial- USGS
quadrangle map which includes the route of'the existing
ditchline from the water treatment plant site to Juniper
Creek. Also enclosed are three copies of a sketch which
depicts field measured locations of the existing ditchline
route.
Thank you, for your assistance in. these regards and, if you have
,any other questions, please let us know.
Very truly Tours,-
- DAVIS-MARTIN-POWELL & ASSOCIATES.
•I
. McNeill,
cc: Joe Campbell
Ronnie Autry
Carl Dean
File

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Proposed Discharge Point
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JAN :11 1991. _.
ENV. MANAGEMENT
FAYETTEVILLE REG. OFFICE
•

®,ley
au OCT 19 1990
, ENV. MANAGEMENT
State of North Carolina FAYETTEVILLE REG. OFFICE
Department of Environment, Health, and Natural Resources
Division of Environmental Management
512 North Salisbury Street ® Raleigh, North Carolina 27611
James G. Martin, Govemor George T. Everett, Ph.D.
Wiliam W. Cobey, Jr., Secretary Director
10/16/90
Mr. Carl Dean
City of Dunn
PO Box 1065
Dunn, NC 28334
Dear Mr. Dean :
Subject: NPDES Permit Application
NPDES Permit No.NC0078955
Dunn Water treatment Facility
Harnett County
This is to acknowledge receipt of the following documents on October 16, 1990:
Application Form
L Engineering Proposal (for proposed control facilities),
Request for permit renewal,
Application Processing Fee of $400.00,
Other Map showing Proposed discharge point..
The items checked below are needed before review can begin:
- Application Form
- Engineering proposal (see attachment),
Application Processing Fee of
Delegation of Authority (see attached)
Biocide Sheet (see attached)
Other
If the application is not made complete within thirty (30) days, it will be
returned to you and may be resubmitted when complete.
This application has been assigned to ;Mack Wiggins
(919/733-5083) of our Permits Unit for review. You will be advised of any
comments recommendations, questions or other information necessary for the
review of the application.
I am, -by copy of this letter, requesting that our 'Regional Office
Supervisor prepare a staff report and recommendations regarding this
discharge. If you have any questions regarding this applications,
please contact the review person listed above.
Sincerely, _
Dale OveZC sh, P.E.
CC: Fayetteville Regional Office
Pollution Prevention Pays.
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer.

CITY OF DUNN, NORTH CAROLINA
WATER TREATMENT FACILITY
NARRATIVE DESCRIPTION
The City of Dunn's existing water-. lity sL. foux,JyGD
conventional type treatment facility securing it's raw water' from the Cape
Fear River. This facility, constructed during the mid 1960's, supplies
potable water to the City of Dunn as well as the' Towns of Benson and
Erwin and other rural regions of Harnett County. The facility, as
originally constructed, included a raw water pump station, flash mixer,
flocculators, sedimentation basins with mud drains, gravity sand -anthracite
standard rate filters, clearwell storage, chemical feed equipment, and high
service pumping units.
During the r's:".",11:61.4m_siu,dge_lafidlillitiet_mere_acCde-cEfart
e_added__^o
the facility to decant backwash and basin blowdown wastewater.'he
p astewa `er handling facileie.s_inclu.de_a_laxge_storage._lagoon_ and a dosngF,
('pi ump sttaon which provides a controlled flow rate to a sludge
concentrator. The concentrated sludge is dewatered fusing Csand djing►
be_dls and the concentrator clear overflowing [supernate water is reiur en
co-the_flash mixer structure
The existing water treatment Cfa`_cility is currently be. ng-_expan.de_ 'ta
.a _ capaacity`-of eight MGD. This inpg-r_ade._n clucles, the renovation and
expansion of raw and finish water pumping units, [the installation of a 3
[v_acu_um____operated-_-sed .men-tation_basin_ ludgecollection -sy tes m the
installation of sedimentation basin tube settlers, the high ting of the
gravity filters, chemical feed renovations, etc. .'o1'.'� Ja
The wag.terratrs=from tlie: sed mantatiozi_.ba n_sludgefirse:7741:151_0,:::1_9ER91.,Ove EysLe n and�the:,gravity filter backwash_._waters will bm-tx
previo -sly installed sludge-1 and'ling facilities: However, since the volumes

4111111114
of wastewater to be handled will increase as the demand on the expanded
plant increases the City of Dunn currently desires to apply for a NPDES
permit for treated and decanted wastewaters so that the operating
personnel —will -have the_option_of e_turnuntreated pernate) to the flash
mixer during plant operating hours Or_disc'hatgng3Xreate-d—supernate,
during hours when the plant is not in operation.
The proposed sedimentation basin sludge- collection system is
expected to transfer approximately 40,000 GPD of wastewater to the existing
storage lagoon. Filter backwash waters will be discharged to the lagoon
as necessary and each backwash cycle waste approximately 140,000 gallons.
The accumulated wastewaters in the storage lagoon ' are transferred to a
sludge concentration unit which has a flow through irate of approximately
250 GPM. The supernate clear water is currently 'returned to the flash
mixer at the 250 GPM rate. The City of Dunn desires to divert this clear
Jw.��er CL
water overflow to an ri rname3�tributaxy of-Steward-s=G-:77 1Z? which is located
in the Cape Fear River Basin. Actual -daily flows--whiobbnay-be-discharged
are-ex:pee ed-to-b-e7aspIto-200:A0.0.7.2PDt The water filtration plant operation
employees a conventional coagulant type system usingialuminum sulfate and
sodium hydroxide.

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Proposed Discharge Point—c
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14

NORTH :CAROLINA DEPT. OF NATURAL RESOURCES' AND 'COMMUNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT., P.O. BOX • 2768'7, RALEIGH, NC 27611
NATIONAL POLLUTANT DISCHARGE ELIMINATION' SYSTEM
APPLICATION FOR PERMIT TO DISCHARGE -'SHORT FORM'C
To be filed only_by persons engaged in manufacturing and mining .
Ii
FOR
AGENCY
USE
Do not attempt to•complete this form before 'reading accompanying instructions
Please print or type
1'. Name, address, location, and telephone number'of facility producing
A. Name • City of Dunn Water Filtration Facility
2. SIC
B. Mailing:address
1. Street address
PCi Iioh: 1065
discharge
APPLICATION NUMBER
Ail e1,1v i .1a1f15-.Is-
DATE RECEIVED
gld 1 110 iG l/
YEAR MO. DAY
9/0
2. Ci,ty Dunn
4. County Harnett
C. Location: .
.1. Street "E" Street
• 2: City Erwin
- 4. State North Carolina -_:
D.. Telephone No. [phone]
' Area
Code
(Leave blank)
'3. Number of employees 6
3. State North. Carolina
5.. ZIP 28334
3'. County Harnett
I ,
If all your waste is discharged into a'publicly owned waste treatment facility
and to the best of your knowledge you are not required to obtain a discharge'
permit, proceed to item 4: Otherwise proceed directly to item 5.-;' . . I
.4. If you meet the condition -stated -above,. check here 0 and supply -the information
asked for below. After completing these items; please complete the date, title,
and signature blocks below and return this form to the'proper reviewing office j
without,completing _the remainder of.the form. Itl
A. Name of organization responsible
, Facility receiving waste:
I. Name •
2. Street address
OCT 1990.
PERMITS & ENGINEERING
3.-City 4I County'
5. State ` I; I
6! Zip
5. Principal product, .Draw material (Check one) Finish water for puWie.use
'6.. Principal `process ' Water Filtration Operation I!:
7. Maximum amount, of principal product 'produced or -raw material consumed per I (Check one) -
Basis " "
Amount: Ij
1-99 •
(1,)
100-199
(2) .
200-499.
_ (3)'
. 500-999,
(4)
--1000-•:.I
4999 -
(51) I
.'-5000-
,1999"
• (6)
10,000-
49,999 -
(7)
50,000
oi' more
(8)
A.. pay
IrI
X
B. Month
II)I
X
C. Year
i'
li
-
X
PREVIOUS'EDI-TION MAY BE USED -UNTIL SUIP,LI I5 EXHAUSTED

H. Mnxlmur nmoonl of prinr.lwil I,rnrlurl Itr(rlurrrl nr rnw iirnlrrltrl rnn•,ruiN•rl, rrptrrlrrl
In 1Lrm. /, above, 1s measured in (LneLk. one):
A. ❑ pounds 8.0 tons C. o barrels. D. ❑bushels E. ❑square feet
F./igallons G.o pieces or units H.o other, specify
9. (a) Check here if discharge occurs all year , or
(b) Check the month(s) discharge occurs:
1.0 January
7.❑ July
2. ❑ February 3. ❑ Marcn 4. ❑ Apri l
8.0 August 9.0 September i0.0 October
5. ❑ MaY 6. ❑ June
11. ❑ November 12 . ❑ December
(c) Check how many days per week: 1.01 2.12-3 3.0 4-5 4.06-7
10. Types of waste water discharged to surface waters only (check as applicable)
•
Uischarge per
operating day
F low. gallons per operating day
Volume treated before
discharging (percent)
0.1-999
(1)
1000-4999
(2)
5000-9999
(3)
10,000-
49,999
(4)
50,000-
or more
(5)
None
(6)
-
0.1-
29.9
(7)
30-
64.9
(8)
65-
94.9
(9)
95-
100
(10)
A. Sanitary, daily
average
B. Cooling water, etc.
daily average
C. Process watt=r,
daily average (Filter
Backw.
sh)
X
X
1. Maximus: per operat-
ing day for total
discharge (all tyres)_
11. If an. of the three types of waste identified in item 10.eithertreated or untreated,
are discharged to places other than surface water,,, check below as applicable.
Waste water is
discharged to:
Average flow, gallon per operating day
0.1-999
(1)
1000-4999
(2)
5000-9999
(3)
10,000-49,999
(4) -
50,000 or more
(5)
A. Municipal sewer system
B. Underground well
C. SeptiL tank
D. Evaporation lagoon or pond
X
E. 0tner-, specify
12. Number of separate discharge points: A.
13. Name of receiving water or waters
B.0 2-3
C. ❑ 4-5 D ❑ 6 or more
14. Does your discharge contain or is it possible for your discharge to containc
one or more of the following substances added as a result of your operations,
activities, or processes: ammonia, cyanide; aluminum, beryllium, cadmium,
chromium, copper, lead, mercury, nickel, selenium, zinc, phenols, oil and
.grease, and chlorine (residual). A.L6 yes B.o no
I certify that I am familiar with the information'containcd in the application and
that to the best of my knowledge and belief such information is true, complete, and
accurate.
Carl Dean
Printed Name of Person Signing
/v-- 4/- 9v
City)fIrlager
Title
,-kL
Date Application Signed Signature of Applicant
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 knowly renders inaccurate any recording or monitoring device or method required to be
operated or maintained under Article 21 or regulations of the Environmental Management Commissic
implementing that Article, shall be guilty of a misdemeanor pumishable by a fine not to exceed
$10,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provic
a punishment by a fine of not more than $10,000 or imprisonment not more than 5 years, or both,
for a similar offense.)

1 H!
•
•
drnp
.18N1 7 1991
ENV. MANAGEMENT
FAYETTEVILLE REG. OFFICE
DAVIS - MARTIN - POWELL & ASSOCIATES, INC.
ENGINEERING • LAND PLANNING • SURVEYING
218 GATEWOOD AVENUE • SU TE -102
HIGH POINT, NC 27260 ,1.!
PHONE [phone] • FAX [phone]
January 4, 1991
Re: City of Dunn, NC
Water Treatment Facilities
NPDES Permit Application
cur -Job No. E-1290
Dear Ms. Cramer:
In accordance with our telephone conversations, we are
enclosing a copy of the DEM permit for the existing alum
sludge treatment facilities. We are currently reviewing the
route of the proposed discharge from the treatment plant to
Juniper Creek and will provide a revised location map with a
more defined route after the site review. isicompleted.
LP
Thank you for your assistance in these regards and if you have
any other questions, please let us know.
Very truly yous,
I) I
— ---DAVIS-MNIZEIN-cdOWELL &ASSOCIATES
11 I
Ms. Kitty Cramer
Fayetteville Regional Office
Division of Environmental Management
Wachovia Building - Suite 714
Fayetteville, NC 28301
RLM/res
cc: Joe Campbell
Ronnie Autry
Carl Dean
File
L. McNeil P.E.
;,•

•S
7'MENT OFy NATURALRESOURCES AND COMMUNITY DEVELOPMENT
Raleigh
PERK! T.
'For the Discharge of Sewage, Industrial.Waetes; or o
ther •
Wastes
In'accordance with the
of C provisions of I
aroli� as amended Article 21 of.Chapter 143
• and other applicable -Lags,, Rules and Riegulatil.Statute8
• Regulations
_PERMISSION IS HEREBY .GRANTED:TO
.City Dun- of. Dn 1
Water Plant Wastewater Treatment
Harnett County ,
" construction and operation of ,,� facility to include a water rl�frion plant wastewater tr
concentrator-facility,
oncentrator f a flow equalization lagoon
acility, sludge drying -beds, lagoon, dual 250 GPM dosingeatment (closed)
not be anydischarge. g-beds, and a recycle pumps, there a sludge
or thesnyface of wastewater into theCity
y 'system so that will
waters of the State, y of Dunn s�existi
ng sewerage system
:j
pursuant to,the a
the projectpplication received -
specifications and other -supporting
m�, U 1 191a� hand .b conformity . with
and approved plans,by the Department, other -supporting data,,
and approved
.of Natural Resources i'° subsequently filed
Part of this Permit. and Community Development and
This Permit,shill
19 81, Peralt be effective from the date of issuance
subject to ,the followinguntil December 31
1. his e specified.condjltions and.1 P rmit shall become voidable unless the facilities are cons stations:
accordance with the approved plans, specifications" tructed in
This and other. i supporting --data.
Peter is effective only with respect
o the naturel1. vol
supporting data. volume of wastes
described -in the application and other
3. The facilities shall be properly maintained and operated it all times.
4." There. shall be nwastewater from to discharge of
waters of the State. his system into the surfac e
5. The method of final
res Thedisposal of alum sludge -from -these facilities shall not
anyt contamination of the surface waters of this State.

6. Any monitoring
insure surface and
sampling reporting
Permit issued
•,...); • •
- -• - -
". - - - •••••r•
Page -
Cont..
deemed necessary by the Division of:Environmental Management to
groundwater protection will be established and an acceptable
schedule -followed by the permitee.
this the 14th , 1978.
NORTH CAROLINA ENv4mmEiT4,1„ MANAGEMENT COMMISSION
0,-111114
wasalliA 5
A. F. McRorie, Director;
Division of Environmental Management
By Authority of the Secretary of the
Department of Natural Resources and Community Development
PERMIT NO.- 5093
day of December
By

(MISCELLANEOUS UNITS;CONTINUED) .POINTS
•
(c) Holding Pond'for Effluent. Flow Equalization and/or
.Stage.Dlscharge 5
d Effluent. Pumps . . 3
e In-Plant-PYmps"(including air.11fts). .
f Stand -By Power Supply . . . .
9 Thermal Pollution Control Device. . ... . .. . • 3' '
h Treatment,Processes..for Removal of Metal or Cyanide and
other Toxic Materials . ._... . .. . . . . . 30 '
' Total Points.
CLASSIFICATION - ,
Class I5..... - 25 Points
Class. II 26 - 50 Points
-Class III 51 - 65`Polnts
Class, IV . . . . , . . . . . . . 66 - Up Points
.Facilities having a rating'of one through four points, inclusive,
do not require a certified -operator. Classification of all other
facilities requires a comparable grade operator in. responsible charge.
-4-
:; North Carolina'`'
Division of Environmental Management
Checklist of Facility Components
To be Used In Determing Facility Classification
' All information, will be printed:
Name of Plant
County
C..iy c9r " .DL • walt - P tek
Owner or Contact. Person Carl .D4..0." '(ti(7f R't2, gin$
?� 1 Q(o �t�n Tere none
Mailing Address �Q. q P.O..Bo i. T ^ isi ' .. . ` 2.9 34
SSttreet'or x own' or. City p
. , .Peraft Number Information., . , Construction Status
NPDES Permit No. flGO 01 S 9 4.S
Date Issued
1005• Coaipletlon Date
ri .O Date D_
Operator in Responsible Charge Y+n u e4" Grade
41`
Design Flow of Plant in GPD ZOOelAC) `' ' .,.'.�. .Plant Class
ITEM • POINTS
(1) PRETREATMENT UNITS (see definition No. 34), ., ... . 2,„
2) DESIGN FLOW OF PLANT IN GPD (not applicable to non-,
contaminated cooling waters and .non -discharging system. .
1
20.001 - 50,000 . . .. ... . 2
50.001 -- . 100.000 '.
100,001 -- 250,000 C 4
Please Check:
Existing Facility x
Upgraded ,Facility
Nev Facility -
State, Persil t No. - . ' If Upgraded or New7717,Eilitic Give.:
Date Issued —' •. 50S Completion Date-' -
Rated by 4; ir..r.,er,' Regional Office
.500.001 -- 1.000,000 . . . -. . . ... _. _. __. _8_
1.000.001 --2 000,000 ... .._._ ._._._.__._._r_._. -:• -. 10 -
2,000.001 (and up) -,rate 1 point additional for each 200,000
'• GPD capacity up to a; aaxiaama Of', . - 30.
Design Flow (GPD):
(3) PRELIMINARY'UNITS.(see definition No.'35)'. . ...
(a)air Influent Pumps (including ' 11ft)-..:. .
b) Bar Screens
or ,
•(c) Mechanical Screens, Static Screen"
Devices '
d) Grit Removal or .
e) Mechanical or Aerated Grit Removal .2
f) Flow, Measuring Device or . . . . '1'.
(g) Instrumented Flow Measurement . . : . ._. . . . 2'1
Effective
4/1/87
•
2
1

(6)
ITEM
POINTS
(h) Preaeratlon or Equalization 1
(1) Grease or. 011 Separators-- Gravity -2
Mechanical 3
Aerated '5
.-(j) Chemical.Conditioning 5
(4) PRIMARY TREATMENT UNITS• . .
a 1:::iff Tank (see definition No.-44) ...... ,. .
c Primary Clarifiers (including sludge air lifts)'..,
d Settling Poods or Settling Tanks for Inorganic Non -
Toxic.Materials Involving a Discharge to the.Surface
waters (sand, gravel,,stone, and other mining'operations
- mining)
except recreational activities such as gem or gold 10
(5) SECONDARY TREATMENT UNITS
(a) Carbonaceous Stage .
(i) Aeration - High'Purity Oxygen-Systein , . . 20
Diffused A1r System 10
• Mechanical Air System (fixed, floating or rotor) 8
• Separate Sludge Reaeratlon 3
(ii) Trickling Filter - High Rate • 7
Standard Rate 5
Packed Tower 5
(iii) Aerated Lagoons 10
(iv) Rotating Biological Contactors (biodisc). 10
(v) Sand Filterslintermittent.biological) .. 2
(vi) Stabilifation Lagoons. i
(vil) Clarifier (including sludge_air lifts). . . 5
• (b) Nitrogenous Stage
. (1) Aeration - High Puri* Oxygen System 20
• • Diffused Air Systems 10
Mechanical A1r System (fixed, floating, or rotor)8
Separate Sludge Reaeratlon .... , . . . 3
:'(ii) Trickling Filter = High Rite.. . ., ....
Standard Rate . . : -. . .'. , 5
Packed Tower . . 5
.(iii) Rotating Biological Contactors (biodisc) . 10
(iv) Sand Filter (inteneittent biological). . . 2
(v) Clarifier (including sludge air lifts) . .' • 5
TERTIARY OR ADVANCED. TREATMENT UNITS
(a)- Activated Carbon Dedt - Without Carbon regeneration. 5
With CarbOn regeneration. 15
(b) Powdered or Granular Activated Carbon Feed"- Without.
Carbon regeneration . . . 5
With Carbon regeneration15'
(c) Ammonia Stripping ' ' 18
1 d) Chemical Additions . 5
e) Denitrification Process (separate process). . . 10
f) Electrodialysis" 5
g) Foam Separation 5
(h)2 Ion Exchange , 5
.
•
-2-
2
3
5'
ITEM POINTS
5
(a) Lagoons - ,
(b) Land Application (surface and subsurface)lsee def. _
23a)
(c), Landfilled (burial)
(9) DISINFECTION
(a) Pre - . .1
. , .
'.(b) Intermediate . . . ........... . . . . 2
d)) .g:g• 3
lorination 5
e) Chlorine or Ozone Generation 5-
f). Radiation 3
(10), , MISCELLANEOUS -UNITS . .
. , (*) Holding Ponds or Holding Tanks for Inorganic. Non -toxic
•' • Materials with no Discharge to the, Surface Waters -. 2
- , '..", (Sludge handling facllltles-for water purification
.. ' plants, sand, gravel, crushed stone and other similar
operations - -see definition No. 10)
.. (b) Holding Ponds or Holding Tanks for Organic or Toxic•
- Materials with no Discharge to the surface Miters -4.
(Any pump. valve, or other mechanical subject
to failure creating a potential for bypass or discharge
from the holding ponds or tanks will. necessitate.a
minimclassification of Class I requiring a certified
operator).
• .
5
20-
2
5
5
30
5
2
5
10
5
3
(1) Land Application (iei.definitiOn,No 23b)
• • (not applicable for facilities under 10(a).. .
(j) Nicroscreens . . .... . . . . . . . .
(k) Phosphorus Removal
(1) Polishing Ponds Withoutlieration -
With aeration . .. -
(m) Post Aeration - Cascade-
. . Diffused or Mechanical , . , . .
(n),-Pre-Package Unit for Removal of 011 and grease
(o) Reverse-CUmosis . . . . ...
1p) Sand or Mixed -Media Filters •-•• Low Rate
Migh.Rate . • • • •
(7) SLUDGE.TREATMENT,
• '
(a) Sludge Digestion Tank Heated
.
. : Aerobic:
Unheated . . . . .
0 Sludge Stabililation(chemical or'thermal)
c Sludge Drying 'Beds '
d Sludge Elutriation
e Sludge Conditioner (chemical or thermal) . .
f Sludgelliickener •
g Sludge GasAtilization (inciOding-gas storage). . ,2
h Sludge Raiding Tank -- Aerated-... 4 .... . . . 5
• Non -aerated 2'
(i) Sludge Incinerator (not including activated carbon
' regeneration) . ..... 10
(j) Vacuum Filter, Centrifuge or Filter Press . . . 10
(8) •SLUDGE DISPOSAL (includingincinerated ash)
• 2
..3_