NC0020591_Regional Office Historical File Pre 2018 (2)

0
SOC PRIORITY PROJECT: Yes No X
To: Permits and Engineering Unit
Water Quality Section
Attention: Michael Allen
Date: January 3, 1997
AUTHORIZATION TO CONSTRUCT
NPDES PERMIT
REPORT AND RECOMMENDATIONS
County: Iredell
Permit No. ACCO020591
MRO No. 97-001
PART I - GENERAL INFORMATION
1. Facility and Address: Third Creek WWTP
City of Statesville
Post Office Box 1111
Statesville, North Carolina 28687
2. Date of On -Site Investigation (if conducted): Last on -site
investigation was performed by Kim H. Colson on 01-12-94.
3. Report Prepared By: G. T. Chen
4. Persons Contacted and Telephone Number: None. (Joe Hudson,
704/878-3438)
5. Verified Discharge Point(s). List for all discharge points:
Latitude: 350 44' 17" Longitude: 800 50' 28"
Attach a U.S.G.S. map extract and indicate treatment facility
site and discharge point on map. Ensure discharge point(s)
correspond to NPDES permitted discharge points.
USGS Quad No.: E 15 NE USGS Quad Name: Sheperds, NC
6. Site size and expansion area consistent with application?
Yes.
7. Topography (relationship to flood plain included): Flat to
moderate slopes; part of the WWTP may be located within the
100 year flood plain.
8. Location of nearest dwelling: None within 500 feet.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS

f
1. Existing treatment facility
a. What is the current permitted capacity of the facility?
4.00 MGD
b. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
(2) years: ACB020591, issued September 26, 1996.
C. What is the actual treatment capacity of the current
facility (design volume)? 4.00 MGD
d. Please provide a description of existing or substantially
constructed wastewater treatment facilities: Existing
facility consists of mechanical bar screens, spiral lift
pumps, aeration basins with mechanical aerators,
secondary clarification, chlorine disinfection, dissolved
air flotation sludge thickener, aerobic sludge digestion,
filter press, and belt press (portable).
2. Please provide a description of proposed wastewater treatment
facilities: The City of Statesville proposes to install a new
sludge dewatering facility at the Third Creek WWTP. The new
facility will consist of two (2) belt presses with feed
pumps, polymer system and wash water pumps. The existing
dissolved air flotation thickener (DAF) is to be removed and
the two belt presses will be installed in the DAF building.
3. Residuals handling and cr'heme:
a. If residuals are being
Permit No.: N/A.
Residual Contractor: 1
Telephone No.: N/A.
b. Residuals stabilizatioi
jr'o�lotil ��5
;ire �lo�d"A
specify DEM
C. Landfill: The facility currently disposes of residuals
in a monofil located on -site covered under Permit No.
WQ0004040.
d. Other disposal/utilization scheme (specify): In the
future the facility will dispose of residuals via
composting using the N-Viro Soil Process at the Fourth
Creek WWTP.
4. Treatment plant classification (attach completed rating
sheet): Class IV, see attached rating sheet.
Authorization to Construct Staff Report
Version 10/92
Page 2

r
' 5. SIC Code(s): 4952
Wastewater Code(s):
Primary: 01 Secondary:
Main Treatment Unit Code: 05007
6. Important SOC, JOC or Compliance Schedule dates: (please
indicate) N/A.
PART III - EVALUATION AND RECOMMENDATIONS
Pending final review and approval by the SERG, it is
recommended that an Authorization to Construct be issued to the
applicant as required.
Pending review and approval by the SERG and the Groundwater
Section, if necessary, it is recommended that an Authorization to
Construct be issued to the applicant as requested.
Signature bf Report Preparer
Water Quality R ional Supervisor
Date
Authorization to Construct Staff Report
version 10/92
Page 3

UNITED STATES ! STATE OF NORTH C
ncoAraTMF NT OF THE INTERIOR 71isC/i �C�i�n DEPARTMENT AL IGH. NORTH CA
so
35*45'
»56-- N
J� 15 A

FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
RATING SCALE -:;�✓ Lam My —
Name of Facility:
Owner or Contact Person:
Mailing Address: Telephone: I facility ----
County: County: New Facility,— Existing Y_-----
TI) Health Dept Per No.._____
Present Classification: 6 Nondisc. Per. No.W pate:
WDES Per. No. N000 Telephoner
Rated by: Health Dept. Telephone:
Reviewed by: Office Telephone:
Regional
Central Office Telephone:Telephone:
Grade: Land Application
ORC: Spray Irrigati Total Points:
Check Classification(s): .—
Subsurface II 111 �
Wastewater Classification: (Circle--" ^ ---- —___ —_—_
- ------ . �
,rRei PART QF cnr Y arir
--------------
r) F
A -_ -----------------------
FfoaATm �S-; Fl;F ',ATION
&JSSJRFXMCLASSF"1'K)N (check BE units that apply)
nt (definition no. 32 )
(check all units that applY) 1 preliminary
trOatme
septic tanks 2.—_t°9oons
1�-�"-' septic tanks
2.—_PUMP tanks 3�_
3 or pUmp_dming systems 4—_pump tanks
4 sand filters 5 pins
_.grease traphnterceptor 6 sand fifers
5oiUwatef aaparators 7--.grease trap�interoeptor
6 �--ce, treatment and d`9>osal 6 CA/water sap"ors
7 _gravity a subr ris
b _Pressure subsurtaoe iresdmerq and d��' disinlectlon
ti
10 clherr>;cai addition tot ntrt� Ualgae cortr
1 j -.Zpr Y kngrdion d writ
retreatmaof these Components
nt of Wastewater In a=Cess skint
stem and well require an operator with an appropriate duel certification.
In addition to the
P ova clsstlflcetions, D
be rated using oInt rating
system
a,y to permit holder)
ESIDUALS CLAD res,buais or ooritaON jFjCAT1�ininated soils on a designated site.
uhlp APPLICATappj __-- __
1. Ladd a�Pl;c--g>n d t--------- -"__ — - - - - - - -
WASTEWATER�''TMaIT FAMPY ��FCATCN is unusually
the lbw k d a sift
ntticard quantity or the technobpy
ems shall be assigned a Ga's I �sM,cation, jii11P5S _ 1 ���e)
The toriowing sy¢ _ � ion by the Commisxion on a case�y sepwatwn, pumps fifers, dlsl�ecan
and disposal;
complex, prquire Separates Systems constoing only d of rapt' doting apparedus, pumPs,sand
1 is tanks,
`-_—swic 7anksand Fitter Systernc cArts�in9 Ditty deems treatment for
and cued discharge; d pier Iminary uaatment, lagoorn, Pump *rj necsssary
Lagoon Syslems oorssist;nfl only
3aIgas a nutrierd oorAroi, and dived dsci e' air4deq:Ans1won adsorption, disinfedan
`�-Closed-loop � � Systems' t only d oghwater sep"oR' Pxnps'
4 ems axtsis t^9
5 Groundwater Remediadion Syst
and dsposal; to surface waters:
6. Aquacuhvre operalions whh discharge
Water Plan t sludge handling and bac - fBsh water treatmerd: hied aver Ju►y 1,
7 — wing �sg d s.-reening and d lion d i.erobic 7rsadmertt Until, w01 be dassAiad a or pert^ siruaind Suds
,-.Seafood p ems, with the exoep �dely operated
_Sir>flte family "charging On � ie found that the system is not being ade4
9 dion by the C iv, o Cocnm'aaion, in wrti N
1943 or Y upon r hkation or redasafl 'on by
systems wi1i be notifwd d the crass

.
' o\n1s)
/ wastewater treatment fa��\\bes* @n\rcha appropriate P
l[hm following scale �� m�md for rating nva
ITEM No. 33)
J4
;`}
�u) °"~~- F-- -,-6. °r-~`-' -
32)
'
'�»} -=~~--' ---'
or
ENT MSES
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awp� ______-_------------ ___''----------'
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(C)ponr="�`w `^ *=�`�
(s) =~ONDkRY ~~''-
Rotating jrlormi-terit
Reciroutating
nitrogenous ismovaJ by
to qr�hano,
' .' ^*����.��_�-'��
�m > ^Z, ' ~~ ' OR' -
�W ~=-~o----
�*> �~�--red --� ,w"al
with carbon
FOAM
oenr
/ =~~����"'����& tn-�_______________~____�_-_-___�
�� m, ' ",,`,wm ='aii*`...---------'

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(15) Et•ctrodsty" Pronss ion removing iontzed Salta Ir— Wdde�mnugh the
uSe d i-taleaM fpn•4`xcortge merrtbrarea:
(16) Fhnr far•u A process op•raud mschhanical7 1a penis y nQ ge arnounts d dstrpdrs materials thvoupr
(17) Foam Separation. TM ptarr»d trotihtnp of wsstewte or wastewater elllusrt as a mare d removire eacesa+ve
Ilfr inlroduaion of atr in the faTn d find Bubb ba� called other Mav�ymmirrci msst•r from eta"•r; r
(18) Grh Removal. The process of rsmovlr,g p aedimdmation cyyrrtber and a bw+r sk+dp' dspsstlon dtarr+ee
(19) tmhoft Tank. A deep two Gory wastewater tank cpnsicling d an upper
riprurrrnted Flow lleaaurerrhsrn. A device which Iniiulas and records rate d flow;
(21) ion Fathered A Membu l process In Oma from two diflerert moteculas are e d snp•d;
�) Land appltcatton: I mrthtod by erttic will sludge may be atpplred b tired ehlor by sDnii^D on iM altM1aoe or W subsurface inieabn
(a) Skrdge Deposal. A final sludge dispose in 11 d this Ruk); ono a red area u a
�J, creel plow); (not appl+cLbW ton types of siu6Qe describedl ) Lion ed eraste+�r
# Treated low). I The process d .praying treated wrast•wa1•r onto a lard area a other methods d spplca
or t ynder gr=`by condhors as a pnis►ting method for removing
nears d " disposal did, imalmorttuousty bad' washed, tatatlng drum fitter opera WV
V3) Liecroccr"n. A low ape nil. -Won usua nitrate);
Swap•ndad solids from eftw•rs; n d unoxldiz•d nitrogen (ammonia and organic nitrogen) to oxidusd ape ( RT
rrtical oorners;o erti ammonia nitrogen to nitrate rrtroQ•n;
Qs) Nrfication Process TM Diod» dasigred to entA cal luxury uptake of phosphorus
A apparel Stage of wastewater treatment dacpMd for Ter ape�fK purpose d c°^v
f ) phosph out Sup° phosphorus trom wastewater by an oxiclartoxic procass
phosphtt• Removal, Biologist The rertwval of phosp � hided solids;
by)V» �oorganisms; secondary yaatrtrrt hMith aufticlom detention lino to &flow sallh other of Itney, auspe
(27) Polishing Pond. A holding pond blowing ryrda tr•�rrhdrx units to increae• atlluern D.O. tx, noanmyicharucal purpose;
means of flowing down a
(26) pox Aeration Aeration tolb +nQ oolg Mot
nai seco ry is d the cascade requires no operator
R9) Post AeratbrL (Cascade) A polahnp method by vAhchodwe►s mov•cna fairly thin layer eand 1M operation
c io weirs; The flow ooevrring aabK the stepIti kmhs d iM discharge permit; red or
ae''ea d asp an acC.Urr even though ins Is an essential steq b Meetinsi and o whits Aba,crplbn by using powdered
adjvstmart; thus, z•nb Pointslei car5on process the: utiltzes blobgkal activity ro
(30) powdered to Granular ActNted Carbon Feed. A bkQh*ya
gram ►ah'loed r&rbon; Virgin or ragan•raled afbon� food b robed into lM system; tits fetch for subsagwnt rnapr operations:
congruaed to provide rim tramrrrrn; rorL i I prsQan
(31) Preaaralbn. A tank rations In the Irsasmen process, such as screening and '
rs and
(32) Preliminary Untie. Unit operations
(33) Industrial Prelreatn»rn, of a watt• sl Its Source before discharge, to narrhove a to ea ne go substances injurious
wevew'alar
(a) Pre•treatmern Uri;, hdustrul. TM poMducthhg to same po+errxtg
tratmars processes or to ones a partial reduaion b toad on tM t»atrrhert propose vvhKtt Y operated by
"atmerrl plant being rated;roqum to fer»fw points txt the rating stet; SeIIhabia and suspended
b) Per-trszlrrw t program, industrial - must be a Stator wuewaiv passed h a tstnrn works for iM purpose d rert+ovlre
(31) Primary Curhiers. TM ttrlo denting tarhka through
solids and BOD which Y sasociat•d with the solids;
(35) Pumps. Al Wluent, sviueru and in -plant pumps: ►nee from
devices ernitting ukrilvioist or gamma rays; no i rrtarTflrano loaning to" pure ighnd
(36) Ftadtation Disinfect t h;¢a�t itin process a fly cOnt&r lnaud liquid Y proswrtzed through
(37) Reverse Osmosis. circular
suspended solids; h which wass•waler flows through rants fn which a Series d panialy wb^1erDed
(3g) Ro atimg Biological C ,rivactors. A fitted bbbp� growth procib"
surtsces are routed; r tretonera Process h which further bbdecorrposhio Y
(lp) Sand Filters: k tanks, lagoons, or aamr other p1D v less than one
(a) Irrarrnhtent BtoloQhcal. FlRrstbn d eHiuers idtowire seCx uteri 9�eL and have a resulting c law Qpo �� •ftwent back
e:pacted to produce desired •rtiu•rrts; hiydraubc loading rates on those ("p`er are a d flue Rule won lM added cspaD y
b) R•ctrrultince biological • the same type d sand filter as defined h Subpa a ach ( ) () bra d Suspended soFds,
Yhmugh the sand liner, pchl process by which efttwrs ffmhc are achieved ltueuQh a further redue�
imp) Sand or Mued-Media Filters. A po nQ D nvd range: rat ww moped three ppma;:
fr) low rate — gravity• hydraulically losd•d liner whh loading rates h the one to three W Al a ref, the toad atudq•t aasnciared hrrtth the
(b) sigh rate — a pressure, hydrauihcaly loaded tins' with loading rats In the live Q �d�rrhe� tM purpose of
(41) Secondary CtardierL A tank which Iclbws the bibibgKi tent d tr•atrrherf pia
biological treatment units; ion A pan d C» pbrtsd stabilization process where the activaded akrdQe Y trarslerred b a tank and aerated before retumire t
(a2) Separate S udge h the tank; shall rot be applicabis for
to the contact basin; ale tqo settling lank h which Yttied sludge Y in contact with the wastewater fiowinQ through
(t3) Septic Tank A sing ry of 2,O0O galbrs or loss whcn discharge b a ted of con frb; more stable prgarllC rrta2ter
spptk tank sysfernc serving sirpie famiy residencies having ruAaY s rd, liquefied, rwwal�ed or converted Into
(ace) Sludge D"Iicn The process by which orpanhc a voWlw man•' and aJudgd fi+
nkms, which hciudes aerated holding tanks; whk3h dtpest•d e•harap• akrdpe Y died by
dralnape and
through the a0vity 01 Ihtnp orGa rising natural or artllcial layers d porous molar" upon
(, 5) Sludge Drying Beds. An area sorry rG with fresh water or ptut eMuent;
evaporation; u of Sludge conftioning in which cartain eonwitu•rtts are rainoved by successive washings
(a6) Sludge Elutriatbn. A prose process of using sewage gas for the purpose of Mating bulkings, dMing engines, etc.;
waahewier treatn»nt plants rxtt oortalning a dlgesur k+ cNhkh sludge rnaY be
(4a) Sludge Gas Ug 7atbn The p This may be done hy adding a amau amour~ o/ air aknpiy s 10 the
(ea) fresh, Holding Tank (Awned and nor to ndryi A� � r� $. sludge drying beds); be Wad io
kept trash, and wpeThaurd withdrawn prior lo a �^rhg required to achieve stabilization of ongank manor. A rhav•rtsd tank would skrtpy
sludge fresh, but not nececsahy an amount thht would be ;rods (several! days of detention) whhout rewhing odor problems;
w bum akrdQe udge to a $large ash;
decant Sludge 6 prior to dSvrau nQ and would not allow lore pe mscble, and to reduce the Pathogens organism
tors. A fume:• desipnsd and to removal aft moipure and cambhtslt)ie rnter`ils and rtxiva the al
(aQ) Sludge VKlnsra u t0 make 1retad sludge Was odorous and put
(50) SwdQe Stabltztron (Chemicalad u` mdrht }chlorine �s� of by Mt trsatrrrrt; hation and aa"hY:
portent; This may be dory by p 1 anted b sent• and thicken iedthrb y r aq n to the water from
(51) Sludge Thickener. A tap• of sedirtrnibn fif lank in which the sfudQ• la Pa nit =nor Y eMetxad by natural tranddr d orype
(52) StabiL-zatbn Lagoon A type of OxidaCior hpoon (n witch bioiogiul oxldaibn Of Organic
air (not a polishing pond); voids and BOD
tom) Stand -By Power Suppy. On site or Portable to
remove
^g � non•bbd•Qradabie particulate (11ostabie eofda, waWrh�
(S4) Static Screens. A •taborery Screen designed of eNkiart poft�: A tontine Ypoon or sand w coal fMer
seduction) irwn municipal end industrial wastewater the bomr system; whit 1tx 1M purpose
d treatment bibwtnG secondary which la DrfrTi Y
{53) Tertiary Treatment. A WQe in tubes b anotfer fluid ovta►cis the tubes, a hhkxe versa:
i•a
wall be errtpli for thin purpose; for tit irander of Foal from a ikAd Ilowtng
qM) Thermal Pollution COMM' Devk ' A &ViM pro� Protracted period d time b frt;xwe tto dawiderabChy d sludge by the
or other means d rsguLa nQ liquid heat k added for a protra
,57) TMnmal Sludge Condttonar. A eendhbninp protons by dratet dot d sludge partkiae: exposure, thpsstbn, M+t+s►albn
eotutiltzinp end hydraultzinQ of the smaiar and rhos hid,• y hydrated a rsa which after dYdw9e and uponat disease, p�avion!
o Toxic fvlatartak Those waste or combirhation d wa>~es, thauding dtsdasdcaushtQwon through food chains, "t Cause da h
or aToxi IAa into arty organism, eh Mr chatty from the enwironmeril or indirw'tly by ir" roduaion or deformtions, in such organisms or their
iul maltunctbns (kxiuding Meurction in nip ) vwd m. ars+^lc, zinc, orthc-nKro-chbrabSnzens
&bnDrrnalh•s, cancer, genetic mutations, phya g hereafter be detsnmWOd to Ms
ptlsarinQ; Toxin maurtak hduda, by way of WuCrtton and rot imhtpn: lead, cadrtlum chic eutn r materials that hive of may
(ONCE). Poychk r trod biphonyY (pCBs) and dichlorodphenyi ukhioroe'har+e (DDTj; and any
d a material Such as broken choir a rock ever which wastewater opera' Y I one to to A high rat trle:
ong
toxin properties: -had to op•r>'e at one lo Four rTtOd per sae:
(Sg) Trickling Fitter. A bblogk� Us+uTMrt unit oorelsting
r sae. A low race tr le liner Y one which Y dscig rrtadla or tlhraie rrtt•rial; Organic
}her Y and which opal &Jed it bs weer 10 and 30 mQd De ration in wt.ch .rasuwaler lbws down through t asssivs isers d u ratflwr4 or may W
(50) TrlckLrhg ter (Pack.•d Tare'). A plug flow type of cps who in each waarsaTva layer. This "thod rnay produce 'seconda-Y q amY
crserta! Y mmo.ed eonhuallf by the a,^tivd �gki tLi d g° ctdd sk,dge prior to 6rsposel
a s.pled to produce a nit• -tied a�u�r PrsYas Drejrvs which are dsai¢»d to remove ecru water from &that d)p•r ed or undge
(lit) Vacuum Fitter, Grtrilupes,
w further tnscrtrra.

State of North Carolina
Department of Environment, 'f�Q
Health and Natural Resources �� 1
Division of Water Quality •
James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary p E H N Q
A. Preston Howard, Jr., P.E., Director
N.C. DEI`F. OF
ENVIRON-MENT, HEALTH,
& NATURAL RESOURCES
December 23, 1996
JAN 2 1997
MR. L.F. "JOE" HUDSON
CITY OF STATESVILLE OAIISION OF ENViC^NIEOTR I MUILYENT
PO BOX 1111 YONESVIIIE REfiiOW OFFICE
STATESVILLE, NORTH CAROLINA 28687
Subject: Application No. AC&20591
WWTPfIhird Creek Sludge Dewatering
Authorization To Construct
Iredell County
Dear MR. HUDSON:
The Division's Permits and Engineering Unit acknowledges receipt of your permit application and
supporting materials on December 2, 1996. This application has been assigned the number listed
Your project has been assigned to Rick Moore for a detailed engineering review. Should there be any
questions concerning your project, the reviewer will contact you with a request for additional
information.
Be aware that the Division's regional office, copied below, must provide recommendations from the
Regional Supervisor or a Procedure Four Evaluation for this project, prior to final action by the
Division. yW4&4,- -;V
If you have any questions, please contact Rick -Mare at [phone] extension * If the engineer
is unavailable, you may leave a message on their voice mail and they will respond promptly.
PLEASE REFER TO THE ABOVE APPLICATION NUMBER WHEN MAKING
INQUIRIES ON THIS PROJECT.
&ro yn D. Caskill
Supervisor, State Engineering Review Group
cc: Wooresville Regional. Offict
Peirson & Whitman Architects & Engineers
Pollution Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

PEIRSON
WHITMAN
ARCHITECTS
AND
ENGINEERS,
PA.
ESTABLISHED 1938
5510
MUNFORD ROAD
P.O. BOX
30398
PHONE
919/782-8300
FAX
919/783-7642
RALEIGH
N.C.
27622-0398
U.S.A.
November 26, 1996
Mr. Dave Goodrich
Permits and Engineering
Division of Environmental Management
P.O. Box 29535
Raleigh, NC 27626-0535
N.C. DEPT. QF
ZNVIRONM1 NT. HEALTIL
a NATURAL RLrSOL3�CjzS
JAN 0 1007
t
J
DIVISION OF ENVIIHN!F,%1°L
MORESVILE RE€iudh OFFICE
Re: Request for Authorization to Construct
Sludge Dewatering Facilities
Third Creek WWTP
Permit #NC0020591
City of Statesville
P&W Project No. 1372
Dear Mr. Goodrich:
Please find enclosed three (3) copies of the plans and
specifications for the referenced project along with a
$200.00 check for the application fee and a copy of the
design calculations. The proposed project will provide
for a new sludge dewatering facility at the Third Creek
Wastewater Treatment Plant. The facilities will consist
of two (2) belt presses with required feed pumps, polymer
system and wash water pumps. The existing dissolved air
flotation thickener will be removed and the two presses
will be installed in the DAF building.
AT your earliest convenience, please review these
documents for approval. If there are any questions,
please do not hesitate to contact us.
Very truly yours,
PEIRSON & WHIJMAN ARCHITECTS AND ENGINEERS, P.A.
Steve Scruggs, .E.
SS/ks
cc: Joe Hudson, City of Statesville
Project file
Enclosures

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6.3.4 Process Performance
6.3.4.1 Total Volatile Solids Reduction
Solids destruction has been shown to be primarily a direct
function of both basin liquid temperature and the length of
time during which the sludge was in the digester. Figure 6-42
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degree-days. Data were taken from both pilot and full-scale
studies on several types of municipal wastewater sludges.
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State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
L. F. "Joe" Hudson, Jr., Director
City of Statesville
Post Office Box I I I I
Statesville, North Carolina 28687
Dear Mr. Hudson:
January 30, 1997
1!� C, ()w 1 Al [4-
V,J,? Kam'
� ,g 6 1997 Subject:
tjlhv MA�P�8t3�E
'«T90111 a4 Eili C kl %10
Permit No. NCO020591
Authorization to Construct
City of Statesville
Wastewater Treatment Facility
Iredell County
A letter of request for an Authorization to Construct was received December 2, 1996, by the
Division of Water Quality and final plans and specifications for the subject project have been reviewed and
found to be satisfactory. Authorization is hereby granted for the construction of two (2) belt presses with
feed pumps, polymer system and wash water pumps to replace the existing dissolved air floatation (DAF)
thickener.
This Authorization to Construct is issued in accordance with Part III Paragraph A of NPDES
Permit No. NC0020591, issued July 29, 1994, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NCO020591.
The residuals generated from these treatment facilities must be disposed in accordance with G.S.
143-215.1 and in a manner approved by the North Carolina Division of Water Quality.
In the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Permittee shall take immediate corrective actions, including those that may be required by
this Division, such as the construction of additional or replacement wastewater treatment or disposal
facilities.
The Mooresville Regional Office, telephone number [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an in -place inspection can be
made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00
a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
Upon completion of construction and prior to operation of this permitted facility, a certification
must be received from a professional engineer certifying that the permitted facility has been installed in
accordance with the NPDES Permit, this Authorization to Construct, and the approved plans and
specifications. Mail the Certification to the Water Quality Permits and Engineering Unit, P.G. Box 29535,
Raleigh, NC 27626-0535.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the
life of the facility.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Upon classification of the facility by the Certification Commission, the Permittee shall employ a
certified wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater treatment
facilities. The operator must hold a certificate of the type and grade at least 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 grade to comply with
the conditions of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class I1, I11, 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 Title 15A, Chapter 8A, .0202. Once the facility is classified, the Permittee must
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.
Failure to abide by the requirements contained in this Authorization to Construct may subject the
Permittee to an enforcement action by the Division of Water Quality in accordance with North Carolina
General Statute 143-215.6(a) to 143-215.6(c).
The issuance of this Authorization to Construct does not preclude the Permittee from complying
with any and all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Mr. Michael D. Allen, telephone number (919)
733-5083 extension 547.
Sincerely,
1
A. Preston , Jr., P.E.
cc: Iredell County Health Department
man Architects and Engineers, P.A.
Al l.., 11 l?a ;jj@ Q e@ A'O _ ll.,,,k4 9&&k xL
Training and Certification Unit
Facilities Assessment Unit

FIV
Permit No. NC0020591
Authorization to Construct
January 30, 1997
ENGINEER'S CERTIFICATION
I, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project,
Project Name
Location
for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of this permit, the approved plans and specifications, and other supporting materials.
Signature
Date
Registration No.

1
UNITED STATES STATE OF NORTH C
ON
,-,.-.*,worucm-r nF THE INTERIOR �s�� 1DC b� bEPARTMENT A '
LEIGH NORTH CA
c
80'
35' 45'
„epee,■ N.
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State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. L.F. Hudson, Jr., Director
City of Statesville
Post Office Box I I I I
Statesville, North Carolina 28687
Dear Mr. Hudson:
1 • •
FN CA NPT. 0 �T
Ttl VV IR�i, ENT, HEAL'['H,
September 26, 1996
OCT 1 1996,
YIYISION OF Ei NOMMENTAL MANAGEMENT
M09RESYLI� �EOfOfjAL OffICE
Subject: Permit No. ACB020591
Authorization to Construct
City of Statesville
Third Creek Wastewater Treatment
Facility
Iredell County
A letter of request for an Authorization to Construct was received August 14, 1996, by the
Division of Water Quality and final plans and specifications for the subject project have been reviewed and
found to be satisfactory. Authorization is hereby granted for the construction of a third influent screw
pump to the City's Third Creek Wastewater Treatment Plant with discharge of treated wastewater into
Third Creek.
This Authorization to Construct is issued in accordance with Part III paragraph A of NPDES
Permit No. NC0020591, issued July 29, 1996, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NCO020591.
The residuals generated from these treatment facilities must be disposed in accordance with G.S.
143-215.1 and in a manner approved by the North Carolina Division of Water Quality.
In the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Permittee shall take immediate corrective actions, including those that may be required by
this Division, such as the construction of additional or replacement wastewater treatment or disposal
facilities.
The Mooresville Regional Office, telephone number [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an in -place inspection can be
made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00
a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
Upon completion of construction and prior to operation of this permitted facility, a certification
must be received from a professional engineer certifying that the permitted facility has been installed in
accordance with the NPDES Permit, this Authorization to Construct, and the approved plans and
specifications. Mail the Certification to the Water Quality Permits and Engineering Unit, P.O. Box 29535,
Raleigh, NC 27626-0535.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

A copy of the approved plans and specifications shall be maintained on file by the Permittee for the
life of the facility.
Failure to abide by the requirements contained in this Authorization to Construct may subject the
Permittee to an enforcement action by the Division of Water Quality in accordance with North Carolina
General Statute 143-215.6(a) to 143-215.6(c).
The issuance of this Authorization to Construct does not preclude the Permittee from complying
with any and all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Matt Williams telephone number [phone]
extension 509.
Sincerely,
�kb fcam.
A. Preston Howard, Jr., P.E. .
cc: Iredell County Health Department
J&aresville Regional Office, Water Quality Section
Mooresville Regional Office, Groundwater Section
Training and Certification Unit

Permit No. NC0020591
Authorization to Construct
September 26, 1996
ENGINEER'S CERTIFICATION
I, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project.
Project Name
Location
for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of this permit, the approved plans and specifications, and other supporting materials.
Signature
Date
Registration No.

SOC PRIORITY PROJECT: Yes No X
To: Permits and Engineering Unit
Water Quality Section
Attention: Matt Williams
Date: August 26, 1996
AUTHORIZATION TO CONSTRUCT
NPDES PERMIT
REPORT AND RECOMMENDATIONS
County: Iredell
Permit No. ACB020591
MRO No. 96-167
PART I - GENERAL INFORMATION
1. Facility and Address: Third Creek WWTP
City of Statesville
Post Office Box 1111
Statesville, North Carolina 28687
2. Date of On -Site Investigation (if conducted): Last on -site
investigation was performed by Kim H. Colson on 01-12-94.
3. Report Prepared By: G. T. Chen
4. Persons Contacted and Telephone Number: None. (Joe Hudson,
704/878-3438)
5. Verified Discharge Point(s). List for all discharge points:
Latitude: 350 44' " Longitude: 800 50, 25"
Attach a U.S.G.S. map extract and indicate treatment facility
site and discharge point on map. Ensure discharge point(s)
correspond to NPDES permitted discharge points.
USGS Quad No.: E 15 NE USGS Quad Name: Sheperds, NC
6. Site size and expansion area consistent with application?
Yes.
7. Topography (relationship to flood plain included): Flat to
moderate slopes; part of the WWTP may be located within the
100 year flood plain.
8. Location of nearest dwelling: None within 500 feet.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS

1. Existing treatment facility
a. What is the current permitted capacity of the facility?
4.00 MGD
b. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
(2) years: N/A.
C. What is the actual treatment capacity of the current
facility (design volume)? 4.00 MGD
d. Please provide a description of existing or substantially
constructed wastewater treatment facilities: Existing
facility consists of mechanical bar screens, spiral lift
pumps, aeration basins with mechanical aerators,
secondary clarification, chlorine disinfection, sludge
thickeners, aerobic sludge digestion, filter press, and
belt press'(portable).
2. Please provide a description of proposed wastewater treatment
facilities: Addition of a screw pump (spiral lift pump).
3. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM
Permit No.: N/A.
Residual Contractor: N/A.
Telephone No.: N/A.
b. Residuals stabilization: PSRP
C. Landfill: The facility currently disposes of residuals
in a monofil located on -site covered under Permit No.
WQ0004040.
d. Other disposal/utilization scheme (specify): In the
future the facility will dispose of residuals via the N-
Viro Soil Process located at the Fourth Creek WWTP.
4. Treatment plant classification (attach completed rating
sheet): Class IV, see attached rating sheet.
5. SIC Code(s): 4952
Wastewater Code(s):
Primary: 01 Secondary:
Main Treatment Unit Code: 05007
Authorization to Construct Staff Report
version 10/92
Page 2

4.
6. Important SOC, JOC or Compliance Schedule dates: (please
indicate) N/A.
PART III - EVALUATION AND RECOMMENDATIONS
Pending review and approval by the SERG, it is recommended
that an Authorization to Construct be issued to the applicant as
requested.
Signature t Report Preparer
Water Quality R,cgional Supervisor
Date
Authorization to Construct Staff Report
Version 10/92
Page 3

UNITED STATES STATE OF NORTH C
DEPARTMENT OF THE INTERIOR DEPARTMENT OF CONSERVATION
MAI ctnu runonru rA
L
l�
80°
35*45'
3956000m h
i
'r- 15Iff

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: tov
Owner or Contact Person:
Mailing Address: Telephone:
County: ���( — Existing Facility
Present Classification: ZV New Facility g
Health Dept -Per N —
NPDES Per. No. NC00 Nondisc. Per. No.WO
Telephone: (: "/L Date:
Rated by: _ Health Dept. Telephone:
Reviewed by: Regional Office Telephone:
Central Office Telephone:
Grade: Telephone:
ORC: Spray Irri gatLand Application
Check Classification(s): Subsurface II p 111 g b
Total Points:—z�
Wastewater Classification: (Circle One) I
--------------
_.._ ...., , .- k, mrTLI-n&1 PART OF
--------------
-----------------
SPRAY IRRIGATION CLA'SWICATION
SuBSLIRFACECIAS'FIC.ATION (check all units that aPPIY)
(check all units that apply) 1 Preliminary treatment (definition no. 32 )
1, septic tanks 2 lagoons
2. pump tanks 3. septic tanks
3, siphon or pump -dosing systems 4. Pump tanks
4-sand filters 5. Pumps
5. grease trapAnterceptor 6 sand filters
g _oil/water separators grease trap/interceptor
7-gravity subsurface treatment and disposal: 8 oil/water separators
8, pressure subsurface treatment and disposal:
g disinfection
10, chemical addition for nutrient/algae control
11. spray irrigation of wastewater
tionter
of these components
In additio
n to the above clesslflcsstem , pretreatment of on operator I rator with cans l
appropriate dual certification.
be rated using the point rating system and will require on p
LAND APPLICATIONMESIDUALS CLASSIFICATION (Applies only to permit holder)
1. Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACILITY CLASSIFICATION is unusuallY
lessthe flow is of a significant quantity or the technology
The following systems shall be assigned a Class 1 classification, �� basis: (Check it Appropriate)
complex, to require consideration by the Commission on a case Ys��i�' temps and disposal;
I.-Oil/water Separator Systems consisting only of physicalapparatus, Pumps,sand titters, disinfection
2- Septic Tank/Sand Fitter Systems consisting only of septic tanks, dosing
and direct discharge; preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
3, Lagoon Systems consisting only of pre
algae or nutrient control, and direct discharge;
4. _Closed -bop Recycle Systems; m air -stripping, carbon adsorption, disinfection
5.
Groundwater Remediation Systerr►s consisting only of oil/water separators, pumps,
and dispoFZJ;
8, _Aquacuflure operations with discharge to surfaoe waters;
7 _Water Plant sludge handling and back -wash water treatment;
8. Seafood processing consisting of screening and disposal. rrnitted after July 1,
g, _Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified If PQ
1993 or it upon inspection by the Division, it is found that the system is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassification by the Commission, writing.

The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
POINTS
ITEM
m see definition No. 33).....................................
.40
rot al pl'rcaWe m non contaminated cooling waters, ckidge handing lac' (toe
for
ar
1 Industrial Pretroatrrterc Units or industrial Pretreatment Program and tens, es consisting only o1 hem
f
(2) DESIGN FLOW OF PL/ktJT IN gpd ( s amr4see definition No. 11).
water purification plants, totally closed cY 1
(4)(d) or items (4)(d) and (I1)(d)) ..................._........-..
...... .............. ...................... 2
0 20.- 60.000.........................................................._.........................».
.-.-..... _..........................
................................».................................5
50.001 - 100.000.............................................................................._:....................... a
100,001 250.1X10 ..... ......................... .......................... .
250.001 500,000.............................................................................................. ..
.......................................1 0
2 OD0.001 (and up) rate 1 point additbrul for each 200,000 OPd r=Pactry up to a maximum of .._.-.-.......
Design Flow} 1
defin[wn No.32)
(3) PREIIMNARYUNRS/PFIOCESSES(see ...... .
(a) gar Screens ....................... .... ..................................................................................................
or
(b) Mechanical Screens. Static Screens or Comminuting Devices ............... .................. ...............................
(c) Grit Remoras ................................................................
oral..............................................:..............................................................
(d) Mow Mess ri Aerated Grill.fiernov
..................
(e) Flow Measuring ......... 2
or..............................................................
instrumented Flow Measurement.........._..-. ....................2
l9) Press ration.......
(h) kttluert Flow Equalization........_ .............. ............................... _... .......... ....
2
Grease or Oil Separators - Gravity......_..._........._........-.
(I) ...............................
...................
Mechanical ................................... ..........
....................
Dissolved Air Flotation .......................................•...»..........................................................
()) Prechbrlru►tbn.............................
........................
PRIMARY TREATMENT IaJRSrPFK)CESSFS........................................__...........
(4) (a) Septic Tank (see detlnition No. 43)....»......_..».»......................................................................................5
(b)................................................6
Imhoff Tank......................................................................................
...........................................
c Primary Clarifiers .................... artac Non•toxk Materials slu a handling taeillties for water
l d)) Settling Ponds or Senling Tanks for�� and other mining operalbnc except recreational actrvn .. such a.. gem.2
purification plants, sand. g ............................
orgold mining).....................�,............................................................
(5) SEOUX ARY TREATMENT t �
(a) Carbonaceous Stage ioxygen System .....................................
.................._...................10
(I) Aeration -High purify
Diffused Air System ..................
Mechanical dg Sys tem fixed. floating or rotor) ..... _------------•.._..._..._..._..
Separate Sludge peabn ............................
......................... .....................
(it) Trickling Filter ....................................... .......5
HighRate........................................................................................._...........................
Standard Rate .......................... 5
...................................... ...... 5
...........................................................................
Packed Tower .............................
(ill) Biological Aerated Filter or Aerated Biological Filter _.............................................................
.......•»-_-......�.... - -,-..•1 0
(II) Aerated Lagoons .............................................................................................10
(I) Rotating Btologlcal Contactors ........................_............................_..........................2
(vi) Sand Filters -intermittent biological.......................•-•..•....•.•.............................. „•••....... .... 3
Recirculating biological..._ .............................. ............................
(vtt) Stabilization Lagoons.......................................................
..............
................................................... rous removal by
(vill) stage s ... em for combined carbonaceous removal d SOD and nitroge
(Ix) Single stage system
nitrifrcatan (see definition No. 12)(Points for this Mem have to be in addition to Rams
(5)(a)(i) through (5)(a)(viii). see definition No.3a)......................................... 2
utilizing the extended aeration press (_,••---............................ 8
utilizing other than the extended aeration process......_...._-•...............................5
BOD removal ........................... ...........5
(x) Biological
additions t( enhance ddttion....................................
(xi) Bbbgkal Culture (super 8ugs')a
(b) Nitrogenous Stageration - High Purity Oxygen System......._..._........_...._....__. ...............10
Diffused Air System.........................................)--.._..._..._._............._..._.............�
float or rotor ....
. Mechanical Air System (fixed. �G ••••••••••••••"'
..............
Separate Sludge Reaeralbn.................................
......._................................_................................0
(II) Trickling Filter -High Rate......................................................5
............................ .......... 5
Standard Rate .................. ....................................._
.............................
Packed Tower ................. Biological
Filer..._.» ..._._».__..._:--......................10
(Ili) Biological Aerated Filter or As Biobg .............•
..............
(I„) Rotating r - Inigai Contactors ............. _...�.................
......3
Sand Finer • irterntttenl biological .......»....................
Recirculating biological..................................................................... ........................
vlCtaNer...................................................... ............
(8) •rEM IARY OR ADVANCED TFi -ATME T t�j j p;A SSES
(a) Activated Carbon Beds - ................
regeneration ....................... ........................
15
without carbon regs » » »
withcarbon regeneration ......... .... ................................. ....
.........
(b) powdered or Granular Activated Carbon Food-
(b) ».»».-»......,„» .».
15
erithout carbon regeneration ..».................... ..„....»......».......
with carbon regeneration ............................................
10
(c) Air stripping ............................................
................»» ..............».».... » ._... ...� ...5
(d) pengrtfieatbn Process- ..._..... .....5
e Electrodlalysts............»...........................» ».........._..».
if 1 Foam Separation. ......................................._..................................................................................
.........................................d..gravel. stone ..............5
(g) ion Exchange ...............................................
....................... ee tuition No. 22b) trot app
Ikabk for and. g
(h) t3nd Application of Treated rratio rations)byhigh
and other similar mining d Effluent h rate intittratlon _.»-•••-•• - -............................................__
..................................................................
(t) Microscreens............. Blologtcal Processes (Sae deflnitbn No. 26).................................. 2
Phosphorous Removal by -••••..
(I)............................... »»...............5
(k) Polishing Ponds •without aeration ............. •..•........-
withuratlon................. ».•.... »........................................ »..

(n) Sano or --- high rate................................................................«.•15
.....................................................
(o) Treatment processes for removal of metal or cyanideals other
.._..._........,,.—i 5
(p) treatment processes for removal of toxic materials other than metal or ryanlde....._..........._.
(7) SLUDGE TREATMENT 10
)-------------- ....._......._.......-.........
(a) Sludge Dipection Tank -Heated (anaerobic) .....................
Aerobic............_...«.
Unheated (anaerobic) .................. ....................•..•••.••»....»......
.....::...........................................................5
.....
Stud Stabillzatbn chemical or the .» .......................».....»...........
».».»....«.....»..... ...5
(c) Sludge Drying Beds -Gravity..........................»..»........»..........».......».»......
Vacuum Assisted .................. _..... ..................
(d) Sludge Elutriation......................................................................
.............».................. �.. ..
(e) Sludge Conditioner (chemical or thermal ......... ........._ _ _ _ _ _ ,,,,,,,,,,,,5
(1) Sludge Thickener (gravity).............lcable to a unit rated as (3)(i)J....._» » «'- •'•' » »..... •»............«2
(fl) Dissolved Air Flotation Unit (not app nit rated
(3»1)).....•.•.__»«« .«.. ....
(h) Sludge Gas utilization (including gas storage) .. ......,............
.............
(I) Sludge Holding Tank -Aerated .................. ......»•-•••""""""-"""•t 0
Nor�ae rated ......................... ........-...,.....•.................._.._...................................
()) Sludge Incinerator (not Including activated carbon re�9neratlon)............... ---^ x.
(k) Vacuum Filter, Centrifuge, or Filler Press or other similar dew
atering
devices••--------• �J
(5) RESIDUALS UTILIZATKNOISPOSAL ("cluding incinerated ash) ............................................... .............................2
(a) Lagoons ............................................
........................
(b) Land Application (surface and subsurface) (see definition 22a) land application permit
.
by contracting to a land application operator or landfill operat...o..............................................
r who holds the .
or landfill permit ...................................................... ................
(c)
Dedicated Landfill(burial) by the per ktee of the wastewater Yeatmern facility...»••»•••••»••»•»••^• » "«'-
(g) D6iF-C'IM
(a) Chlorination......»..».»» ............. ...........................................«...........•..«::«_::_••...........................
........................5
(b) Dechbrination................................«........«.«..»....».»........«....«.«..».»».».............................................
(c) Ozone ............ .................... ..........«.«..» .......................... 5
(d) Radiation ................................................. addhbns rated as pem (3)U)•
(1 p) CHEMICAL ADDITION SYSTEMS) ( see deffnflbn No. 9) (not applicablentto eachscmhlaal
(5)la)lxd) (6)(a), (6)(b). (7)(b). (7)(9). (9a). (9)(b) or(9)lc)..5..point........•.•...........»...........................................
Listp1(. k� ........................».... .....
...................................... »...»»...«»..........»...»»..» ««... ««.................................... ............................ 5
(1 1) MLSCEDL i N US I�IfTSrPR7CESSESToxic
(a) Holding Ponds, Holding Tanks or Settling Ponds for Orgy or amounts er than from
common
operations containing nitrogen or phosphorus compo...................................................A
for domestic wastewater........................................................................
(b) Effluent Flow Equalization (not applicable to storage basins which an inherent In land application systems....-
(c Stage Discharge(not applicable to storage basin; inherent In land application systems) »»...........:... �.,
(d) Pumps .................................................................._..........«.........«........_.........................................
(e) Stand -By Power Supply........: ••••-
(1) Thermal Pollution Control Device ....................................................
,TOTAL POINTS ..................... »...
LT � s
5.25 Poirrts
.................»» .»..•.....26 50 Points
Ctass II ........ »......................................................... ....................................5165 Points
Points
»
............ — — — — — — — —� — -------
----------------------------
Facilities having a rating of one through four points. Induslve, do not require a certified operator -
Facilities having an activated cludige proces
s will be asslprwd a minimum ciassMkatlon of Class II.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum dasstfication of Class II.
Facihiss having treatmment processes for the biological removal of phosphorus will be assigned a minimum dassfl'icatbn of Class III.
A064 DEFINITIONS The following definitions shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A physicaVchemical method for reducing soluble organic material from wastewater ettluent; The column -type beds used In this
method will have a flow rate varying from two to eight gallons per minute per square toot and may be efther upf ow or downflow carbon beds. Carbon may or
and b which bioingicaI oxidation or organic matter Is reduced through artificially
may not be regenerated on the wastewater treatment plant site;
(2) Aerated Lagoons. A basin in which all solids are maintained in suspensiony Extended
accelerated transfer of oxygen on a flow -through basis; Nation or dflusbn;(3a )
(3) Aeration A process of bringing about Intimate ontact between air or purity oxygen In a h Ilquld by spraying, agitation
Aeration. An activated Sludge process utilizing a minimum hydraulicproduced, managed, and harvested (Crop includes graSdse6, grains, tragic, etc.)',
(4) Agriculturally managed site. Any site on which a crop fs Pr 9 H adjustment) with the ammonia then released to the
(5) Air Stripping. A process by which the ammonium Ion Is first converted to dissolved ammonia (p 1
atmosphere by physical means; or other similar processes which remove petroleum products such as benzene, toluene, and tares ;
(6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which voiatllize and oxidize the
absorbed Impurities;
(7) Carbonaceous Stage. A sbtge of wastewater treatment designed to achieve 'secondary' effluent to s; to liquids of ditterern deml ,Ias;
(5) Carttrtfugs. A mechanical device In which centrifugal force is used to separate solids from liquids or to separate q I solids removal, pH adjustment,
(9) Chemical Addition Systems- The addition of chemicals) to wastewater at an application point for purposes d krtProv r►fl for different
alkalinhy control, etc.; the capability to experiment with different chemicals and dffiereapplication points to achieve a specific result will be considered one
it to add chemical(s) to dual units will be rated as oresystem; it to add a chemical at a different application points system; the l rm in teems being rated as separate systems; nor to
purposes will result lo the ry r to wet sludge to coalesce the mass p
(10) Chemical Sludge Conditioning. The addition of a chemical compound such as Urns, ferric chloride, dx a potyrtw _ic If ravel,
ks application to a dewatering device;
(11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing inorg'nn 1ox�y�appurteruncese
crushed store or other similar operations. Such systems shall carry a maximum of two points regardless of pumping
(12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitrification- A single stage system required to achieve PerTT�l effluent limits on BOD
and ammonia nitrogen within the game biological reactor, ctertticadl or physical process;
(13) Dechlorination. The partial or complete reduction of residual chorine in a liquid by any
(14) Den6rtficatlon Process. The conversion of nitrate -nitrogen to nitrogen gas;

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State of North ;grolina
Department of Environment, it
Health and Natural Resources
Division of Water Quality 11
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. reston Howard, Jr., P.E., Director
MR. L.F. "JOE" HUDSON
LAI
IddlL
[DEHNFl.
N.C. I)EPT. OiF
ENVIRONMENT, HEAL
& NATURAL RESOURCM
August 20, 1996 AUG 20 1996
CITY OF STATESVILLE
PO BOX I I I I
STATESVILLE, NORTH CAROLINA 28687
Dear MR. HUDSON:
PMSION OF ENVIRONMENTAL MANAGENEIK
MODRIMLE REGIONAL OFFICE
Subject: Application No. ACB020591
WWTP/Third Creek Influent Pump
Station
Authorization To Construct
Iredell County
The Division's Permits and Engineering Unit acknowledges receipt of your permit application and
supporting materials on August 14, 1996. This application has been assigned the number listed above.
Your project has been assigned to Matt Williams for a detailed engineering review. Should there be any
questions concerning your project, the reviewer will contact you with a request for additional
information.
Be aware that the Division's regional office, copied below, must provide recommendations from the
Regional Supervisor or a Procedure Four Evaluation for this project, prior to final action by the
Division.
If you have any questions, please contact Matt Williams at [phone] extension 509. If the
engineer is unavailable, you may leave a message on their voice mail and they will respond promptly.
PLEASE REFER TO THE ABOVE APPLICATION NUMBER WHEN MAKING
INQUIRIES ON THIS PROJECT.
Sincerely,
Carolyn 1`McCaskill
Supervisor, State Engineering Review Group
cc:
Peirson & Whitman Architects & Engineers
Pollution Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

°dJ t ai. illy „ect:0n
Dare: November 1, 1995
AUTHORIZATION TO CONSTRUCT
NPDES PERMIT
REPORT AND RECOMMENDATIONS
County: Iredell
Permit No. NCO020591 (AC0020591)
PART I - GENERAL INFORMATION
1. Facility and Address: Third Creek WWTP
City of Statesville
Post Office Box 1111
Statesville, NC 28677
2. Date of On -Site Investigation (if conducted): October 24, 1995
3. Report Prepared By: Todd St. John
4. Persons Contacted and Telephone Ntimber: Judy Woodruff, ORC
5. Verified Discharge Point(s), List for All Discharge Points:
Latitude: 35144' 17" Longitude: 80' 50' 25"
Attach a USGS map extract and indicate treatment facility site and discharge point on
map. Ensure discharge point(s) correspond to NPDES permitted discharge points.
USGS Quad No.: E15NE USGS Quad Name: Shepherds, NC
6. Size (land available for expansion and upgrading): Aeration basin already exists.
7. Topography (relationship to flood plain included): Does not appear to be in a flood plain.
8. Location of Nearest Dwelling: None within 500 feet.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Type of Existing Treatment Facility: Subject aeration basin currently exists. There are
five platform aerators.

�. JT _ sea 1 ir%eP_% Fad . _y: 71--ic subitztaer.-ti-jn :,.,iiii il?..S e:r fit: c.. � _.•..
basin krill be reline; with concrete and four floating r.,dxers will be acded.
3. Sludge Handling and Disposal Scheme: N/A
4. Treatment Plant Classification (attached completed rating sheet): Improvements to
aeration basin will not change classification.
SIC Code(s): 4952
Wastewater Code(s):
Primary: 01
Secondary:
Main Treatment Unit Code: 05007
PART III - EVALUATION AND RECOMMENDATIONS
This facility is currently under an SOC as a result of elevated cadmium levels in the
effluent and sludge. The cadmium most likely originated from effluent from Southern Fasteners
which is no longer in business. The cadmium probably became entrained in the sludge and
adsorbed in the clay liners in the aeration basins and digester. The cadmium is then believed to
have leached from these sources. Therefore, relining the basins with concrete should alleviate
the elevated cadmium levels. However, the relining of subject aeration basin is not included as a
stipulation in the current SOC. Compliance with the final effluent cadmium limits was to occur
October 31, 1995.
basin.
project.
The additional mixers should serve to improve the efficiency of the subject aeration
Therefore, this Office recommends the issuance of the authorization to construct for this
Signature dReport Pie/parer
Water Quality Region' Supervisor
Date

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
% 4
AN
�EHNR
October 5, 1995
MR JOE HUDSON
CITY OF STATESVILLE
PO BOX II11
STATF,SVILLF, NORTH CAROLINA 28677
Subject: Application No. AC0020591
WWTP/Third Creek
Aeration Basin #2
Authorization To Construct
Dear MR HUDSON: Iredell County
The Division's Permits and Engineering Unit acknowledges receipt of your permit application and
supporting materials on October 4, 1995. This application has been assigned the numrPr listed above.
PLEASE REFER TO THE ABOVE WATER QUALITY NUMBER WHEN 'MAKING
INQUIRES ON THIS PROJECT.
Your project has been assign
questions concerning your pr
Be aware that the Division's r
Regional Supervisor or a Proc
Division.
If you have any questions, ple
engineer is unavailable, you m
Please reference the above app
cc:
Peirson & Whitman
P.O. Box 29535,
An
A-� c
61 5 t /.J -;T
_ eview. Should there be any
o' litional information letter.
ommendations from the
final action by the
Ktension 555. If the
y will respond promptly.
Q
C. DEPT. OF
)NI'dENT, _-7EALTK
RAL. RESOURCES
i 10 iy;!)
11ROivMINTAL :11MOEMER
LE REGIONAL OFFICE
t-7015

PEIRSON
WHITMAN
ARCHITECTS
AND
ENGINEERS,
P.
ESTABLISHED 1938
5510
MUNFORD ROAD
P.O. BOX
30398
PHONE
919/782-8300
FAX
919/783-7642
RALEIGH
N.C.
27622-0398
U.S.A.
6156
October 3, 1995 101
�f.
Mr. Dave Goodrich
Permits and Engineering
Division of Environmental Management
P.O. Box 29535
Raleigh, NC 27626-0535
Re: Request for Authorization to Construct
Cleaning, Repairing and Concreting
Aeration Basin No. 2
Third Creek Wastewater Treatment Plant
City of Statesville
NPDES No. NCO020591 Y� �
P&W Project No. 1324
Dear Mr. Goodrich:
Please find enclosed three (3) sets of the plans and
specifications for the referenced project along with a
$400 check for the application fee and a letter from
the City of Statesville requesting Authorization to
Construct. Your review and issuance of an
Authorization to Construct are requested. The
referenced project involves cleaning out the existing "
aeration basin, repairing the existing concrete splash,
aprons, concreting the existing sidewalls and basin
bottom and installing floating mixers in Aeration Basin
No. 2 at the Third Creek Wastewater Treatment Plant. —
If there are any questions or if any additional
information is needed, please do not hesitate to
contact me.
Very truly yours,
PEIRSON & WHITMAN ARCHITECTS AND ENGINEERS, P.A.
SS/ks
cc: Joe Hudson
Project file
1V.C, DF,PT. OF
F-NN"1R0 NIvTE�Jr£EALTI�
NATURAL_ RI"I s ) JRCES
DIVISION OF ENVIRONP'viNL R�. iciAf$
NOORESVILLE REGIONAL OFFICE

�t Of
utll�
V. (9. Wax 1111 • #tatrsuille. Xort4 Tarolina 28687-1111
September 26, 1995
Mr. Dave Goodrich
Permits and Engineering
Division of Environmental Management
P. O. Box 29535
Raleigh, NC 27626-0535
Re: Request for Authorization to Construct
Cleaning, Repairing and Concreting
Aeration Basin No. 2
Third Creek Wastewater Treatment Plant
City of Statesville
NPDES No. NC0020591
P&W Project No. 1324 ;
Dear Mr. Goodrich: -'
Please find enclosed three (3) sets of the plans and specifications for the referenced
project along with a $400 check for the application fee. Your review and issuance of an
Authorization to Construct are requested. The referenced project involves cleaning out the
existing aeration basin, repairing the existing concrete splash aprons, concreting the existing
sidewalls and basin bottom and installing floating mixers in Aeration Basin No. 2 at the Third
Creek Wastewater Treatment Plant.
If there are any questions or if any additional information is needed, please do not
hesitate to contact me.
Sincerely,
A
. F. "Joe" Hudson, Jr., Director
Water/Wastewater Treatment
cc: Steve Scruggs, Peirson & Whitman

rp�State of North Carolina
,, Department of Environment,
Health and Natural Resources
/ Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B Howes Secreta
ry
A. Preston Howard, Jr., P.E., Director
December 1, 1995
Mr. Joe Hudson, Jr., Director, Water/Wastewater Treatment
City of Statesville
P.O. Box 1111
Statesville, North Carolina 28677
Subject: Permit No. NCO020591
Authorization to Construct
City of Statesville -Third Creek
Wastewater Treatment Plant
Iredell County
Dear Mr. Hudson:
A letter of request for an Authorization to Construct was received October 4, 1995 by the Division
and final plans and specifications for the subject project have been reviewed and found to be satisfactory.
Authorization is hereby granted for the removal of the residuals and existing clay liner in aeration basin
No. 2; construction of a concrete basin for aeration basin No. 2; the addition of 4 floating mixers and all
the associated valves, piping, and appurtenances. The concrete basin for aeration basin No. 2 shall be
constructed to maintain, at minimum, the current volume. Disposal of soils, decant, and residuals shall
comply with all applicable laws and permits.
Any groundwater monitoring, as deemed necessary by the Division, shall be provided.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES
Permit No. NCO020591 issued July 29, 1994, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NC0020591.
The sludge generated from these treatment facilities must be disposed of in accordance with G.S.
143-215.1 and in a manner approved by the North Carolina Division of Environmental Management.
In'the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Permittee shall take immediate corrective action, including those as may be required by this
Division, such as the construction of additional or replacement wastewater treatment or disposal facilities.
The Mooresville Regional Office, telephone number [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an in -place inspection can be
made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00
a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Permit No. NC0020591
Authorization to Construct
City of Statesville -Third Creek
Wastewater Treatment Plant
Page 2
Upon completion of construction and prior to operation of this permitted facility, a certification
must be received from a professional engineer certifying that the permitted facility has been installed in
accordance with the NPDES Permit, this Authorization to Construct and the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC
27626-0535.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the
life of the facility.
Failure to abide by the requirements contained in this Authorization to Construct may subject the
Permittee to an enforcement action by the Division of Environmental Management in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from complying
with any and all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Susan A. Wilson, telephone number 919/733-
5083, ext. 555.
Sincerely,
Preston Howard, Jr., P.E.
cc: Mooresville Regiftal Office,.Watar Qtbhty F�
Central Files

Permit No. NCO020591
Authorization to Construct
City of Statesville -Third Creek
Wastewater Treatment Plant
Page 3
En,ineer's Certification
I, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project, ,
Project Name Location
for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of the approved plans and specifications.
Signature
Date
Registration No.

STATESVILLE-THIRD CREEK
A/C
(NC0020591)
11/22/95
Statesville has requested A/C for removal of existing clay liner and residuals from aeration
basin No. 2. Refurbishment of aeration basin No. 1 and digester was approved in 1/95.
Existing liners and residuals have elevated Cd levels. Statesville also proposes a new
concrete 'liner' for aeration basin No. 2. Volume for aeration basin No. 2 shall remain the
same. Four floating mixers will also be added to the aeration basin No. 2.
Grouundwater comments were requested with previous refurbishment (of aeration basin
No.I and digester) and have been inserted into this A/C.
Specs (Section IA4 (E) and (F)) indicate that potentially contaminated clay liner and
residuals shall be disposed of in an appropriate manner to comply with appropriate laws.
Reiterated in first paragraph that disposal of soils, decant, and residuals shall comply with
appropriate laws and permits. (This is stated again in 2nd to last paragraph of A/C).
Previous A/C required that any subsequent plans indicate that potential bypass was
plugged. This was so noted with the A/C plan submittal.
saw JbI
i

State of North Carolina
Department of Environment,
Health and Natural Resources `
(t, Division of Environmental Management
\' James B. Hunt Jr. Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director �'IK 1 MENT, HEAL,
NATURAL RESOURCE$
August 9, 1995 AUG 14 1y4
DIVISION OF ENVIAQq,';jY{r�ygSfMEllf
MOu93'r;EEE REG;.,HiG.o•i�rJ(,!
Jack King, City Manager
City of Statesville
P.O. Box 1111
Statesville, North Carolina 28677
Subject: Special Order by Consent
City of Statesville
EMC SOC WQ 93-03
Iredell County
Dear Mr. King:
Attached for your records is a copy of the signed Special Order by Consent approved by the
Environmental Management Commission.
The terms and conditions of the Order are in full effect, and you are reminded that all final
permit limits contained in the permit must be met except those modified by *Lh� coadi ions of *he
Order.
If you have questions concerning this matter, please contact Jeff Bouchelle at [phone]
ext. 530.
Sincerely,
r
A. Preston Howard,
Attachment
cc: I ville Regional Office
Mike Hom, EPA
Ken Eagleson
Robert Farmer
Jeff Bouchelle
Central Files
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
COUNTY OF IREDELL
IN THE MATTER OF )
NORTH CAROLINA ) SPECIAL ORDER BY CONSENT
NPDES PERMIT ) EMC WQ NO. 93-03
NO. NCO020591 )
HELD BY THE CITY OF )
STATESVILLE )
Pursuant to provisions of North Carolina General Statutes (G.S.) 143.215.2 and 143-215.67, this
Special Order by Consent is entered into by the City of Statesville, hereinafter referred to as the
City, and the North Carolina Environmental Management Commission, an agency of the State
of North Carolina created by G.S. 143B-282, and hereinafter referred to as the Commission:
1. The City and the Commission hereby stipulate the following:
(a) That the City holds North Carolina NPDES Permit No. NCO020591 for
operation of an existing wastewater treatment works and for making an
outlet therefrom for treated wastewater to Third Creek, Class C waters of
this State in the Yadkin -Pee Dee River Basin, but is unable to comply
with the final effluent limitations for Cadmium set forth in the Permit.
Compliance will require the removal of accumulated old sludge from the
system, and the renovation of existing facilities. Compliance will also
require the continued control of industrial discharges to the treatment
works through the City's approved and implemented industrial
pretreatment program and through the local sewer use ordinance.
(b) That noncompliance with final effluent limitations constitutes causing and
contributing to pollution of the waters of this State named above, and the
City is within the jurisdiction of the Commission as set forth in G.S.
Chapter 143, Article 21.
(c) That the City desires to cause or allow the discharge of 190,000 gpd of
additional wastewater to the treatment works, and that the discharge of
such additional wastewater will not result in any significant degradation
of the quality of any waters.
(d) That the City has secured financing for planned renovation activities
which, when completed, will result in the adequate treatment of the
wastewater presently being discharged and the additional wastewater
desired to be discharged, to the extent that the City will be able to comply
with final permit effluent limitations.

(e) Since this Special Order is by Consent, neither party will file a petition
for a contested case or for judicial review concerning its terms.
2. The City, desiring to comply with the permit identified in paragraph l (a) above,
hereby agrees to do the following:
(a) Provide the Mooresville Regional Office of the North Carolina Division
of Environmental Management (DEM), located at 919 North Main Street,
Mooresville, North Carolina 28115, with a list of all additions of flow
under the City's Special Order, and update this list each time flow is
added to the system.
(b) Undertake the following activities in accordance with the indicated time
schedule:
1. Remove digester and aeration basin #1 from service for
renovation. MET
Note: The renovation will include the removal and dewatering of
sludge from both basins, the excavation of the clay liners from
both basins, the placement of a compacted stone base in both
basins, and the construction of concrete liners for both basins.
2. By no later than August 30, 1994 submit plans and specifications
and request an Authorization to Construct the concrete liner for the
digester. MET
3. By no later than February 28, 1995 begin renovations to digester
and aeration basin #1, as defined in 2(b)(1) above, except for the
concrete liner for aeration basin #1. MET
Note: Supernatant from dewatering of sludge removed from
digester and aeration basin #1 may be pumped to in-service
activated sludge system only after pretreatment to reduce cadmium
concentrations to a level at least similar to that currently existing
in the system. The facility's waste activated sludge program must
be maintained at a level so as to minimize the buildup of cadmium
in the system.
Note: The sludge removed from digester and aeration basin #1
must be stored and disposed of by an approved method.
Note: The clay liners removed from digester and aeration basin
#1 must be stored and disposed of by an approved method.

4. By no later than July 31, 1995 complete construction of concrete
liner for digester. MET
5. By no later than September 30, 1995 place digester back into
service.
6. By no later than January 30, 1995 submit plans and specifications
and request an Authorization to Construct a concrete liner for
aeration basin # 1. MET
7. By no later than July 1, 1995 begin construction of the concrete
liner for aeration basin # 1. MET
8. By no later than September 30, 1995 complete construction of
concrete liner for aeration basin #1 and place unit back into
service.
9. Achieve compliance with final effluent limits by no later than
October 31, 1995.
(c) Comply with all terms and conditions of the NPDES Permit except those
effluent limitations identified in paragraph 1(a) above and 2(d) below.
Should the Permit be modified or renewed during the period this Special
Order by Consent is in effect, then comply with all terms and conditions
of the Permit except those effluent limitations that have been modified, as
identified in paragraph 2(d) below. See Attachment A for all current
monitoring requirements and effluent limitations. The permittee may also
be required to monitor for other parameters as deemed necessary by the
Director in future permits or administrative letters.
(d) During the time in which this Special Order by Consent is effective,
comply with the interim effluent limitations contained in Attachment A,
except as provided for in paragraph 2(c) above, should the Permit be
modified or renewed. The follov&g reflects only the limitations that have
been modified from NPDES Permit requirements by this Order:
Permit Limits
Parameter Unit Daily Maximum
Cadmium ug/1 5.2
Modified Limits (SOC)
Daily Maximum
33.0

(e) No later than 14 calendar days after any date identified for
accomplishment of any activity listed in 2(2) above, submit to the Director
of DEM written notice of compliance or noncompliance therewith. In the
case of noncompliance, the notice shall include a statement of the
reason(s) for noncompliance, remedial action(s) taken, and a statement
identifying the extent to which subsequent dates or times for
accomplishment of listed activities may affected.
(f) Enforce the water conservation provisions of the State Building Code as
it applies to new residential construction (Volume H, Chapter IX 901.2).
✓(g) Develop and adopt sewer use ordinance limits for non -conventional
pollutants. Implement the pretreatment program as approved by the
Director, including the enforcement of both categorical pretreatment
standards and local limits.
(h) Identify any Infiltration and Inflow problems associated with the facility
and establish a program to correct.
(i) Use forty percent (40 %) of the revenue received by a municipality from
additional one-half percent ('h %) sales and use taxes levied during the
first five fiscal years in which the additional taxes are in effect in the
municipality and thirty percent (30 %) of the revenue received by a
municipality from these taxes in the second five fiscal years in which the
taxes are in effect in the municipality for water and sewer capital outlay
purposes or to retire any indebtedness incurred by the municipality for
these purposes.
3. The City agrees that unless excused under paragraph 4, the City will pay the
Director of DEM, by check payable to the North Carolina Department of
Environment, Health, and Natural Resources, stipulated penalties according to the
following schedule for failure to meet the deadlines set out in paragraphs 2(b) and
2(e), or failure to attain compliance with the effluent limitations/monitoring
requirements contained in Attachment A, except as provided for in paragraph 2(c)
above.
Failure to meet a schedule date
Failure to maintain compliance with any
modified limit contained in the SOC.
Failure to achieve compliance with final
effluent limits by October 31, 1995
$100/day for the first 7 days;
$500/day thereafter
$ 1 000/violation
Single monetary penalty of
$5,000

Monitoring frequency violations
Failure to submit progress reports
$100 per omitted value per
parameter
$50/day for the first 7 days;
$250/day thereafter
4. The City and the Commission agree that the stipulated penalties are not due if the
City satisfies the DEM that noncompliance was caused solely by:
a. An act of God;
b. An act of war;
C. An intentional act or omission of a third party; but this defense shall not
be available if the act or omission is that of an employee or agent of the
defendant or if the act or omission occurs in connection with a contractual
relationship with the permittee;
d. An extraordinary event beyond the permittee's control. Contractor delays
or failure to obtain funding will not be considered as events beyond the
permittee's control; or
e. Any combination of the above causes.
Failure within 30 days of receipt of written demand to pay the penalties, or
challenge them by a contested case petition pursuant to G.S. 150B-23, will be
grounds for a collection action, which the Attorney General is hereby authorized
to initiate. The only issue in such an action will be whether the 30 days have
elapsed.
5. In accordance with the provisions of G.S. 143-215.67(b) the Commission allows
the City to accept the additional waste specified below to its waste disposal
system:
190,000 gpd of additional wastewater. The nature of the additional flows is such
that the waste characteristics do not exceed those generally associated with
domestic waste or are pretreated to domestic strengths. Waste of greater than
normal domestic strength may be accepted if the parameter(s) that exceed normal
domestic strength are not those for which interim limitations have been
developed, and it can be demonstrated to the satisfaction of the Director that the
additional waste will not adversely affect the treatment efficiency of the treatment
system for any modified parameter or result in the violation of any other permit
limitation. All new and proposed industrial waste tributary to the system must
be controlled using all needed mechanisms including, but not limited to, adoption
and implementation of industrial waste control and pretreatment ordinances. No

wastewater can be accepted which will add toxic pollutants in quantities not
generally associated with domestic wastewater characteristics, unless the
acceptance of the additional wastewater can be supported through appropriate
analyses acceptable to the Director.
6. This Special Order by Consent and any terms, conditions and interim effluent
limitations contained herein, hereby supersede any and all previous Special Orders
and Enforcement Compliance Schedule Letters, and terms, conditions, and
limitations contained therein issued in connection with NPDES Permit No.
NC0020591. In the event of an NPDES Permit modification or renewal, any
effluent limitations or monitoring requirements contained therein shall supersede
those contained in Attachment A of this Special Order by Consent, except as
modified and contained in paragraph 2(d) above.
7. Any violation of terms of this Special Order by Consent, including paragraph 2(b)
and Vie) above and Attachment A except as provided for in paragraph 2(c)
above shall terminate paragraph 5 of this Order and any authorized additional
waste not previously connected to the system shall not thereafter be connected
until the necessary sewerage system improvements have been completed and
placed in operation.
8. Noncompliance with the terms of this Special Order by Consent is subject to
enforcement action in addition to the above stipulated penalties, including
injunctive relief pursuant to G.S. 143-215.6C.
9. The permittee, upon signature of the Special Order by Consent, will be expected
to comply with all schedule dates, terms, and conditions of this document.
10. This Special Order by Consent shall expire January 31, 1996.
For the City of Statesville:
Date
Jac ng, City Manager
For the North C lina Environmental Management Commission:
i
7 Date
- Chair of the Commissi

ATTACHMENT A
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Interim Summer: April 1 - October 31
During the period beginning on the effective date of this Special Order and lasting until October 31, 1995, the permittee is authorized to
discharge from outfall serial number 001. Such discharge shall be limited and monitored by the permittee as specified below:
Effluent Characteristics
Discharge Limitations
Monitoring
Requirements
Units as Specified
Measurement
Sample
Sample
Monthly Ave.
Weekly Ava.
Daily Max.
Frequency
Type
Location
Flow
4.0
MGD
Continuous
Recording
I or E
BOD, 5-Day, 20°C **
30.0
mg/1
45.0 mg/1
Daily
Composite
E,I
Total Suspended Residue **
30.0
mg/1
45.0 mg/1
Daily
Composite
E,I
NH3 as N
13.0
mg/1
19.5 mg/1
Daily
Composite
E
Dissolved Oxygen (Minimum)
5.0
mg/1
5.0 mg/1
Daily
Grab
E,U,D
Fecal Coliform (geometric mean)
200.0/ 100 ml
400.0/ 100 ml
Daily
Grab
E,U,D
Total Residual Chlorine
Daily
Grab
E
Temperature
Daily
Grab
E,U,D
Total Nitrogen (NO2 + NO3 + TKN)
Monthly
Composite
E
Total Phosphorus
Monthly
Composite
E
Chronic Toxicity ***
Quarterly
Composite
E
Pollutant Analysis ****
Annually
E
Conductivity
*
Grab
U,D
Cadmium
33.0 ug/l
Weekly
Composite
E
Lead
64.5 ug/1
Weekly
Composite
E
Cyanide
12.9 ug/1
Weekly
Grab
E
Chromium
Monthly
Composite
E
Copper
Monthly
Composite
E
Nickel
Monthly
Composite
E
Zinc
Monthly
Composite
E
* Sample Locations: I -Influent, E-Effluent, U-Upstream approximately 100 feet above discharge point; D-Downstream (1) 1.9 miles below
discharge at NCSR 2359, (2) - 3.5 miles below discharge at NCSR 2362. Upstream and downstream samples shall be grab samples. Stream
samples shall be collected three times per week during June, July, August, and September, and once per week during the remaining months
of the year.

ATTACHMENT A
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Interim Summer: April 1 - October 31 (continued)
** The monthly average effluent BOD5 and Total Suspended Residue concentration shall not exceed 15 % of the respective influent value (85 %
removal.
***Quarterly chronic toxicity (Ceriodaphnia) P/F at 39% during January, April, July, and October. See SOC Attachment B.
**** See SOC Attachment C.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

ATTACHMENT A
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Interim Winter: November 1 - March 31
During the period beginning on the effective date of this Special Order and lasting until October 31, 1995, the permittee is authorized to
discharge from outfall serial number 001. Such discharge shall be limited and monitored by the permittee as specified below:
Effluent Characteristics
Flow
BOD, 5-Day, 20°C **
Total Suspended Residue **
NH3 as N
Dissolved Oxygen (Minimum)
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Discharge Limitations
Monitoring
Requirements
Units as Specified
Measurement
Sample
Sample
Monthly Avg_ Weekly Ave.
Daily Max. Frequency
Twe
Location
4.0 MGD
30.0 mg/1
30.0 mg/1
45.0 mg/1
45.0 mg/1
5.0 mg/1 5.0 mg/1
200.0/100 ml 400.0/100 ml
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Chronic Toxicity ***
Pollutant Analysis ****
Conductivity
Cadmium
Lead
Cyanide
Chromium
Copper
Nickel
Zinc
Continuous
Recording
I or E
Daily
Composite
E,I
Daily
Composite
E,I
Daily
Composite
E
Daily
Grab
E,U,D
Daily
Grab
E,U,D
Daily
Grab
E
Daily
Grab
E,U,D
Monthly
Composite
E
Monthly
Composite
E
Quarterly
Composite
E
Annually
E
*
Grab
U,D
33.0 ug/1 Weekly
Composite
E
64.5 ug/1 Weekly
Composite
E
12.9 ug/1 Weekly
Grab
E
Monthly
Composite
E
Monthly
Composite
E
Monthly
Composite
E
Monthly
Composite
E
* Sample Locations: I -Influent, E-Effluent, U-Upstream approximately 100 feet above discharge point; D-Downstream (1) 1.9 miles below
discharge at NCSR 2359, (2) - 3.5 miles below discharge at NCSR 2362. Upstream and downstream samples shall be grab samples. Stream
samples shall be collected three times per week during June, July, August, and September, and once per week during the remaining months
of the year.

ATTACHMENT A
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Interim Summer: April 1 - October 31 (continued)
* * The monthly average effluent BOD5 and Total Suspended Residue concentration shall not exceed 15 % of the respective influent value (85 %
removal.
***Quarterly chronic toxicity (Ceriodaphnia) P/F at 39% during January, April, July, and October. See SOC Attachment B.
**** See SOC Attachment C.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

ATTACHMENT B
CHRONIC TOXICITY TESTING REQUIREMENT
The effluent discharge shall at no time exhibit chronic toxicity in any two consecutive toxicity tests, using test
procedures outlined in:
1. The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September, 1989, or subsequent versions).
The effluent concentration at which there may be no observable inhibition of reproduction or significant
mortality is 39 % (defined as treatment two in the North Carolina procedure document). The permit holder
shall perform quarterly monitoring using this procedure to establish compliance with Special Order by Consent
condition. The specified test months are January, April, July, and October. Effluent sampling for this testing
shall be performed at the NPDES permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this Special Order by Consent condition will be entered on the
Effluent Discharge Monitoring Form (MR-1) for the months in which tests were performed using the parameter
code TGP3B. Additionally, DEM Form AT-3 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of Environmental Management
4401 Reedy Creek Road
Raleigh, North Carolina 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed
in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent
toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will
revert to quarterly in the months specified above.
Should any test from this monitoring requirement or tests performed by the North Carolina Division of
Environmental Management indicate potential impacts to the receiving stream, this Special Order by Consent
may be reopened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival and appropriate environmental controls, shall constitute an invalid test and will require immediate
retesting (within 30 days of initial monitoring event). Failure to submit suitable test results will constitute
noncompliance with monitoring requirements.

ATTACH IEMENT C
ANNUAL POLLUTANT ANALYSIS MONITORING (APAM) REQUIREMENT
The permittee shall conduct a test for priority pollutants annually at the effluent from the treatment plant. The
discharge shall be evaluated as follows:
1. A pollutant analysis of the effluent must be completed annually using EPA approved methods
for the following analytic fractions: (a) purgeables (i.e., volatile organic compounds); (b) acid
extractables; (c) base/neutral extractables; (d) organochlorine pesticides and PCB's; (e)
herbicides; and (f) metals and other inorganics. The Annual Pollutant Analysis (APA)
Monitoring Requirement Reporting Form A, to be provided to all discharges affected by this
monitoring requirement, describes the sampling and analysis requirements and lists chemicals
to be included in the pollutant analysis. This monitoring requirement is to be referred to as the
"Annual Pollutant Analysis" (APA).
2. Other significant levels of synthetic organic chemicals must be identified and approximately
quantified. For the purpose of implementing this requirement, the largest 10 GUMS peaks in
each organic chemical analytic fraction (or fewer than 10, if less than 10 unidentified peaks) that
occur for chemicals other than those specified on the APA Monitoring Requirement Reporting
Form A should be identified and approximately quantified as stated in the APA Reporting Form
A instructions. This part (item 2) of the APA monitoring requirement is to be referred to as the
"10 significant peaks rule".

VState 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
January 9, 1995
Mr. Jack King
P.O. Box 1111
Statesville, NC 28677
09YFA
[D F= F1
N.C. DEPT. OF
ENVIRONMENT, HEALTH,
& NATURAL RESOURCES
JAN i .s 1995
DIVISION OF ENVIRONMR ':L � .tiT
MOORESVILLE REGIONAL OFFICE
Subject: NPDES Permit # NCO020591
Third Crk WWTP
_`kedell County I
Dear Mr. King:
The pretreatment rules in 15A NCAC 2H .0900 have been revised effective November 1, 1994.
Therefore, the pretreatment requirements for the City of Statesville have changed and your
NPDES permit is hereby modified to reflect these changes. Please insert the enclosed
Part III.A-B into the appropriate place in your current NPDES permit and disregard the old
Part III.A-B. Please note that any original Part III conditions after Part III.B are still in effect and
must remain in the permit.
The main change is found in Part III.B.10 with a change from Semi -Annual Reports (SAR) to
Pretreatment Annual Reports (PAR). Your PAR is due by September 1 of each year and shall
cover activities for the two previous six-month periods. Please include the following periods in
your first annual report:
First six month period: 7/1/94-12/31/94
Second six month period: 1/1/95 - 6/30/95
You are reminded that you must still judge compliance for each industrial user for each six-
month period, and take appropriate enforcement action.
The requirements for submission of a PAR are found in Chapter 9 of the Comprehensive
Guidance for North Carolina Pretreatment Programs.
This permit modification is issued pursuant to the requirements of North Carolina General
Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the
US Environmental Protection Agency dated December 6, 1983.
P. O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper

Third Crk WWTP
NPDES Permit # NC0020591
Page 2
If any part of this permit modification is unacceptable to you, you have the right to an
adjudicatory hearing upon written request within thirty (30) days following receipt of this letter.
This request must be in the form of a written petition, conforming to Chapter 150B of the North
Carolina General Statutes, and filed with the Office of Administrative Hearings, Post Office
Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision
shall be final and binding.
This permit modification does not affect the legal requirements to obtain other permits which
may be required by the Division of Environmental Management or permits required by any other
federal, state, or local agency.
If you have any questions concerning this permit, please contact the Mooresville Regional Office
at [phone] or Joe Pearce with the Central Office Pretreatment Staff at [phone].
1 erely,
r11--�
. Preston HWJP.
cc: Jim Patrick, EPA
Permits & Engineering
Pretreatment Files
Central Files
Carol C. Rogers

Part III.A-B.
Modified 1/9/95
PART III
OTHER REQUIREMENTS
A. Requirements for Control of Pollutants Attribute to Industrial Users.
1. Effluent limitations are listed in Part I of this permit. Other pollutants attributable to
inputs from industries using the municipal system may be present in the permittee's
discharge. At such time as sufficient information becomes available to establish
limitations for such pollutants, this permit may be revised to specify effluent limitations
for any or all of such other pollutants in accordance with best practicable technology or
water quality standards.
2. Under no circumstances shall the permittee allow introduction of the following wastes
in the waste treatment system:
a. Pollutants which create a fire or explosion hazard in the POTW, including, but not
limited to, wastestreams with a closed cup flashpoint of less than 140 degrees
Fahrenheit or 60 degrees Centigrade using the test methods specified in
40 CFR 261.21;
b. Pollutants which will cause corrosive structural damage to the POTW, but in no case
Discharges with pH lower than 5.0, unless the works is specifically designed to
accommodate such Discharges;
C. Solid or viscous pollutants in amounts which will cause obstruction to the flow in the
POTW resulting in Interference;
d. Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a
Discharge at a flow rate and/or pollutant concentration which will cause Interference
with the POTW;
Heat in amounts which will inhibit biological activity in the POTW resulting in
Interference, but in no case heat in such quantities that the temperature at the POTW
Treatment Plant exceeds 40°C (104°F) unless the Division, upon request of the
POTW, approves alternate temperature limits;
f. Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in
amounts that will cause interference or pass through;
g. Pollutants which result in the presence of toxic gases, vapors, or fumes within the
POTW in a quantity that may cause acute worker health and safety problems;
h. Any trucked or hauled pollutants, except at discharge points designated by the
POTW.
3. With regard to the effluent requirements listed in Part I of this permit, it may be
necessary for the permittee to supplement the requirements of the Federal Pretreatment
Standards (40 CFR, Part 403) to ensure compliance by the permittee with all applicable
effluent limitations. Such actions by the permittee may be necessary regarding some or
all of the industries discharging to the municipal system.

Part III.A-B.
Modified 1/9/95
4. The permittee shall require any industrial discharges into the permitted system to meet
Federal Pretreatment Standards promulgated in response to Section 307(b) of the Act.
Prior to accepting wastewater from any significant industrial user, the permittee shall
either develop and submit to the Division a Pretreatment Program for approval per
15A NCAC 2H .0907(a) or modify an existing Pretreatment Program per
15A NCAC 2H .0907(b).
5. This permit shall be modified, or alternatively, revoked and reissued, to incorporate or
modify an approved POTW Pretreatment Program or to include a compliance schedule
for the development of a POTW Pretreatment Program as required under Section
402(b)(8) of the Clean Water Act and implementing regulations or by the requirements
of the approved State pretreatment program, as appropriate.
B. Pretreatment Program Requirements
Under authority of sections 307(b) and (c) and 402(b)(8) of the Clean Water Act and
implementing regulations 40 CFR Part 403, North Carolina General Statute 143-215.3 (14)
and implementing regulations 15A NCAC 2H .0900, and in accordance with the approved
pretreatment program, all provisions and regulations contained and referenced in the
Pretreatment Program Submittal are an enforceable part of this permit.
The permittee shall operate its approved pretreatment program in accordance with Section
402(b)(8) of the Clean Water Act, the Federal Pretreatment Regulations 40 CFR Part 403, the
State Pretreatment Regulations 15A NCAC 2H .0900, and the legal authorities, policies,
procedures, and financial provisions contained in its pretreatment program submission and
Division approved modifications there of. Such operation shall include but is not limited to
the implementation of the following conditions and requirements:
Sewer Use Ordinance (SUO)
The permittee shall maintain adequate legal authority to implement its approved
pretreatment program;
2. Industrial Waste Survey (IWS)
The permittee shall update its Industrial Waste Survey (IWS) of all users of the sewer
collection system at least once every five years;
3. Monitoring Plan
The permittee shall implement a Division approved Monitoring Plan for the collection
of facility specific data to be used in a wastewater treatment plant Headworks Analysis
(HWA) for the development of specific pretreatment local limits;
4. Headworks Analysis (HWA) and Local Limits
The permittee shall obtain Division approval of a Headworks Analysis (HWA) at least
once every five years, and as required by the Division. The permittee shall develop, in
accordance with 40 CFR 403.5(c) and 15A NCAC 2H .0909, specific Local Limits to
implement the prohibitions listed in 40 CFR 403.5(a) and (b) and
15A NCAC 2H .0909;

Part III.A-B.
Modified 1/9/95
5. Industrial User Pretreatment Permits (IUP) & Allocation Tables
In accordance with NCGS 143-215.1, the permittee shall issue to all significant
industrial users, permits for operation of pretreatment equipment and discharge to the
permittee's treatment works. These permits shall contain limitations, sampling
protocols, reporting requirements, appropriate standard and special conditions, and
compliance schedules as necessary for the installation of treatment and control
technologies to assure that their wastewater discharge will meet all applicable
pretreatment standards and requirements. The permittee shall maintain a current
Allocation Table (AT) which summarizes the results of the Headworks Analysis
(HWA) and the limits from all Industrial User Pretreatment Permits (IUP). Permitted
IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as
determined by the HWA;
6. Authorization to Construct (A to C)
The permittee shall ensure that an Authorization to Construct (A to C) is issued to all
applicable industrial users for the construction or modification of any pretreatment
facility. Prior to the issuance of an Authorization to Construct (A to C), the proposed
pretreatment facility and treatment process must be evaluated for its capacity to comply
with all Industrial User Pretreatment Permit (IUP) limitations;
7. POTW Inspection & Monitoring of their SIUs
The permittee shall conduct inspection, surveillance, and monitoring activities as
described in its Division approved pretreatment program in order to determine,
independent of information supplied by industrial users, compliance with applicable
pretreatment standards. The permittee must:
7a. Inspect all Significant Industrial Users (SIUs) at least once per
calendar year; and
7b. Sample all Significant Industrial Users (SIUs) at least twice per
calendar year for all permit -limited pollutants, once during the
period from January 1 through June 30 and once during the
period from July 1 through December 31, except for organic
compounds which shall be sampled once per calendar year;
8. SIU Self Monitoring and Reporting
The permittee shall require all industrial users to comply with the applicable monitoring
and reporting requirements outlined in the Division approved pretreatment program, the
industry's pretreatment permit, or in 15A NCAC 2H .0908;
9. Enforcement Response Plan (ERP)
The permittee shall enforce and obtain appropriate remedies for violations of all
pretreatment standards promulgated pursuant to section 307(b) and (c) of the Clean
Water Act (40 CFR 405 et.seq.), prohibitive discharge standards as set forth in
40 CFR 403.5 and 15A NCAC 2H .0909, and specific local limitations. All
enforcement actions shall be consistent with the Enforcement Response Plan (ERP)
approved by the Division;

Part III.A-B.
Modified 1/9/95
10. Pretreatment Annual Reports (PAR)
The permittee shall report to the Division in accordance with 15A NCAC 2H .0908. In
lieu of submitting annual reports, Modified Pretreatment Programs developed under
15A NCAC 2H .0904 (b) may be required to meet with Division personnel periodically
to discuss enforcement of pretreatment requirements and other pretreatment
implementation issues.
For all other active pretreatment programs, the permittee shall submit to the Division at
the following address:
NC DEM Pretreatment Group
PO BOX 29535
RALEIGH, NC 27626-0535
Two copies of a Pretreatment Annual Report (PAR) describing its pretreatment
activities over the previous twelve months.
These reports shall be submitted according to a schedule established by the Director and
shall contain the following:
a.) Narrative
A brief discussion of reasons for, status of, and actions taken for all
Significant Industrial Users (SIUs) in Significant Non -Compliance
(SNC);
b.) Pretreatment Program Summ= (PPS)
A pretreatment program summary (PPS) on specific forms
approved by the Division;
c.) Significant Non -Compliance Report (SNCR)
The nature of the violations and the actions taken or proposed to
correct the violations on specific forms approved by the Division;
d.) Industrial Data Summary Forms (IDSF)
Monitoring data from samples collected by both the POTW and the
Significant Industrial User (SIU). These analytical results must be
reported on Industrial Data Summary Forms (IDSF) or other
specific format approved by the Division;
e.) Other Information
Copies of the POTW's allocation table, new or modified
enforcement compliance schedules, public notice of SILTS in SNC,
and any other information, upon request, which in the opinion of
the Director is needed to determine compliance with the
pretreatment implementation requirements of this permit;
11. Public Notice
The permittee shall publish annually a list of Significant Industrial Users (SIUs) that
were in Significant Non -Compliance (SNC) as defined in the permittee's Division
approved Sewer Use Ordinance with applicable pretreatment requirements and
standards during the previous twelve month period. This list shall be published within
two months of the applicable twelve month period;

Part III.A-B.
Modified 1/9/95
12. Record Keeping
The permittee shall retain for a minimum of three years records of monitoring activities
and results, along with support information including general records, water quality
records, and records of industrial impact on the POTW;
13. Funding and Financial Report
The permittee shall maintain adequate funding and staffing levels to accomplish the
objectives of its approved pretreatment program;
14. Modification to Pretreatment Programs
Modifications to the approved pretreatment program including but not limited to local
limits modifications, POTW monitoring of their Significant Industrial Users (SIUs),
and Monitoring Plan modifications, shall be considered a permit modification and shall
be governed by 15 NCAC 2H .0114 and 15A NCAC 2H .0907.
NOTE:
ALL OTHER PART III CONDITIONS IN THE ORIGINAL
NPDES PERMIT ARE STILL IN EFFECT.