NC0079057_Permit (Issuance)_19990111

NPDES DOCUNENT SCANNING COVER •oMEET
NPDES Permit: NC0079057
Manteo WWTP
Document Type:, '' Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Speculative Limits
Complete File - Historical
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date: January 11, 1999
This document is printed on reuse paper-ignore arty
content on the reverse side

State of North Carolina
Department of Environm
and Natural Resources ent «
Division of Water Quality
r �
James B. Hunt, Jr., Governor D E N R
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
January 11, 1999
Mr. John Luke, Jr.
Utilities Superintendent
Town of Manteo
Post Office Box 246
Manteo,North Carolina 27954
Subject: Issuance ofNPDES Permit
Permit No.NCO079057
Manteo WWTP
Dare County
Dear Mr. Luke:
This letter is to inform you that the Division has finalized its review and the comment period is
now closed for NPDES permit NC0079057. A final copy of the permit is attached to this letter for your
records. This permit is issued pursuant to the requirements of the 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.
The following list has been included to outline the changes that were addressed in the draft
permit. These changes remain unchanged in the final permit:
• An effluent limitations and monitoring requirements page has been added for the 0.6 MGD
flow. The plant capacity is currently 0.6 MGD and the facility has authorization to expand to
1.0 MGD when plans and specifications are submitted for Division review and approval.
• Special Condition G was deleted form the permit renewal. The Regional office verified that
the requirements of this condition have been met.
• Special Condition H was deleted form the permit renewal. APAM Monitoring is no longer a
Division requirement.
• Special Condition I was deleted from the permit renewal. This requirement is covered in the
boilerplate language.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty
(30) days following receipt of this letter. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of
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

T
Issuance of NPDES Permit
Permit No. NC0079057
Manteo WWTP
Page 2 of 2
Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such
demand is made, this decision shall be final and binding.
Please be advised that this permit is not transferable. Part II, EA. addresses the requirements to
be followed in case of change in ownership or control of this discharge. In addition, this permit does not
affect the legal requirement to obtain other permits which may be required by the Division of Water
Quality or permits required by the Division of Land Resources, Coastal Area Management Act or any
other Federal or Local governmental permit that may be required.
In closing, I would like to state that it is the Division's ultimate goal to provide quality service to
the public. Please take a moment to review the procedures you followed in applying for this permit
renewal in addition to the Division's response to your project needs. If we can improve our service to
you in any manner, please bring it to our attention. We appreciate your cooperation during the renewal
process and we look forward to working with you in the future.
If we can be of further assistance to you or if you would like to suggest any improvements we
can make to strengthen our customer service efforts, please do not hesitate to contact Jeff Myhra of my
staff at [phone], extension 597. S� 1v
Onginar Signed By
David A Goodrich
A. Preston Howard, Jr., P.E.
cc: Central Files
Mr. Roosevelt Childress, EPA
Washington Regional Office/ Water Quality Section
Point Source Compliance Enforcement Unit
Aquatic Toxicology Unit
NPDES-Unit-tPermit'file)

a
Permit No. NCO079057
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission,
and the Federal Water Pollution Control Act, as amended,
Town of Manteo
is hereby authorized to discharge wastewater from a facility located at the
Manteo Wastewater Treatment Plant
off US Highway 64-264
Manteo
Dare County
to receiving waters designated as Shallowbag Bay in the Pasquotank River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, III, and IV hereof.
The permit shall become effective February 1, 1999
This permit and the authorization to discharge shall expire at midnight on February 28, 2003
Signed this day January 11, 1999
Original Signed By
David A GOrr4rirh
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0079057
SUPPLEMENT TO PERMIT COVER SHEET
Town of Manteo
is hereby authorized to:
1 . Continue to operate a 0.6 MGD wastewater treatment facility (dual activated sludge removal
system) consisting of a mechanical bar screen, grit chamber, multi-channel mechanical
aeration, two standard clarifier units, tertiary traveling bridge filters, chlorine gas
disinfection, dechlorination,post aeration, sludge digester, sludge holding tank, standby
power, and permitted land application located at Manteo Wastewater Treatment Plant,off
US Highway 64/264, Manteo,Dare County (See Part III of this permit),
2. Discharge from said treatment works at the location specified on the attached map into
Shallowbag Bay which is classified as SC waters in the Pasquotank River Basin, and
3. After receiving an Authorization to Construct from the Division of Water Quality, expand
the facility to achieve up to 1.0 MGD treatment capacity.

u: au r
u \\;
Baum Point `\d z
y a
• ..0. �/ O 3UghL®\
\tea
V , g 16
el 1_
Ballast
•g ." '• ;y;.{'� y.l _ _ / :.pe Point
.`Sand Point �e�°� ought
;r, �✓ a• `����•'� \"\ S h/lz l 1 o w b a p Bay I _
/ Light
Maven Cje2k.� �',•;.� a • 5" c ge point� _ ___--��`'.^6\ z
alifGrnii .• yIwit
�.,
Lkht',
Lf Well Field)
\ Site � . `• _ O _ _ _ -' � �� `�
=�_-_R O /•\ J i'• b .K E- _
-_
ROAD CLASSIFICATION SCALE 1:24 000
PRIMARY HIGHWAY UGHf-DUTY ROAD HARD OR 0 1 MILE
HARD SURFACE IMPROVED SURFACE
SECONDARYHIGHWAY 7000 FEET
HARD
-
HARD SURFACE =3111111119=1 UNIMPROVED ROAD FESS
1 0 1 KILOMETER
Latitude 35°542L Longitude 75039128"
Map # D36NW Sub-basin 30151 CONTOUR INTERVAL 5 FEET
Stream Class Sc QUAD LOCATION
Discharge Codes 01 27 Town of Manteo - WWTP
Receiving Stream Shallowbag Bay NCO079057
Dare County
Design 0 o.5oo MGD Permit expires 02/28/03

A.(1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NC0079057
During the period beginning on the effective date of the permit and lasting until expansion above 0.6 MGD or expiration, the Permittee is authorized to discharge
from outfall serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS
Monthly Weekly Daily Measurement Sample Sample
Avera a Average Maximum Frenuencv Type Location'
Flow 0.6 MGD Continuous Record­tng I or E
BOD 5 day, 20°C (April 1 -October 31 z 5.0 m A 7.5 m A Daily Composite E,
BOD 5 day, 20°C November 1 -March 31 z 10.0 m A 15.0 m A Daily Composite E, 1
Total Suspended Solids2 30.0 m /l 45.0 m A Daily Composite E,I
NH3 as N (April 1 -October 31) 2.0 mgA Daily Composite E
NH3 as N (November 1 ,March 31) 4.0 mg/I Daily Composite E
Dissolved Oxygen3.4 Daily Grab E
Fecal Coliform (geometric mean)4 14 1100 ml 28/ 100 ml Daily Grab E
Total Residual Chlorine 17 /I Daily Grab E
Tem erature4 Daily Grab E
Total Nitrogen(NO2+ NO3+TKN) Quarterly Composite E
Total Phosphorus
Quarter) Composite E
H4 5 Dail Grab See Note 5
Acute Toxicity6 Quarterly Composite E
TKN Weekly Com osite E
Salini weekly____] Instantaneous See Note 4
Notes:
' Sample locations: E-Effluent, I - Influent.
2 The monthly average effluent BOD5 and Total Suspended solids concentrations shall not exceed 15 percent of the respective influent value (85 percent
removal).
3 The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/1.
4 Special monitoring requirements for Dissolved Oxygen, Fecal Coliform, pH, Salinity, and Temperature are included in Special Condition A.(3). on the
Supplement to Effluent Limitations and Monitoring Requirements Page.
5 The pH shall not be less than 6.8 standard units nor greater than 8.5 standard units and shall be monitored as per the requirements outlined in Special
Condition A.(3). on the Supplement to Effluent Limitations and Monitoring Requirements Page.
6 Acute Toxicity(Fathead Minnow) P/F at 90%; February, May, August and November. See Special Condition A.(4). on the Supplement to Effluent Limitations and
Monitoring Requirements Page.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Special permit conditions applicable to the subject facility are listed on the Supplement to Effluent Limitations and Monitoring Requirements Page.

A.(2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO079057
During the period beginning after expansion above 0.6 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall serial number 001.
Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS
Monthly Weekly Daily Measurement Sample Sample
Average Average Maximum Frequency Type Location'
Flow 1,0 MGD Continuous Recording I or E
BOD 5 day, 20°C (April 1 -October 31 2 5.0 mg/I 7.5 mg/I Daily Composite E,
BOD, 5 day, 20°C November 1 -March 31 2 10.0 m /1 15.0 m /I Daily Composite E,
Total Suspended Solids2 30.0 m /I 45.0 mg/I Daily Composite E,
NH3 as N (April 1 -October 31) 2.0 mg/I Daily Composite E
NH3 as N (November 1 -March 31) 4.0 mg/I Daily Composite E
Dissolved Oxygen3.4 Daily Grab E
Fecal Coliform(geometric mean)4 14/100 ml 28/100 ml Daily Grab E
Total Residual Chlorine 17 /1 Daily Grab E
Tem erature4 Daily Grab E
Total Nitrogen(NO2+NO3+TKN) Quarterly Composite E
Total Phosphorus Quarterly Composite E
H4.5 Daily Grab See Note 5
Acute Toxicity6 Quarterly Composite E
TKN Weekl Com osite E
NZi Weekl Instantaneous See Note 4
Notes:
r Sample locations: E-Effluent, I -influent.
2 The monthly average effluent BODS and Total Suspended Solids concentrations shall not exceed 15 percent of the respective influent value (85 percent
removal).
3 The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/I.
4 Special monitoring requirements for Dissolved Oxygen, Fecal Coliform, pH, Salinity and Temperature are included in Special Condition A.(3). on the Supplement
to Effluent Limitations and Monitoring Requirements Page.
5 The pH shall not be less than 6.8 standard units nor greater than 8.5 standard units and shall be monitored as per the requirements outlined in Special
Condition A.(3). on the Supplement to Effluent Limitations and Monitoring Requirements Page.
6 Acute Toxicity (Fathead Minnow) P/F at 90%; February, May, August and November. See Special Condition A.(4). on the Supplement to Effluent Limitations and
Monitoring Requirements Page.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Special permit conditions applicable to the subject facility are listed on the Supplement to Effluent Limitations and Monitoring Requirements Page.

Permit No. NCO079057
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A.(3). Instream Monitoring Requirements
The Permittee shall perform instream monitoring between June I and September
30 each year as specified below:
Parameter Sample Type Frequency
Dissolved Ox , en' Instantaneous Weekl
Temperature, Instantaneous WeekI
Salinity' Instantaneous Wezky
H, Instantaneous Week)
Fecal Colifotm' Instantaneous 2/Month
' Dissolved Oxygen,Temperature, Salinity, and pH shall be collected as grab samples at one
foot intervals vertically throughout the water column.
2 Fecal Cohfoim shall be collected as a grab sample approximately 6 inches below the surface.
Sample locations:
• At the mouth of Doughs Creek;
• Near the mouth of Scarboro Creek;
• In Shallowbag Bay approximately 800 feet northeast of Sandy Point;
• In Shallowbag Bay approximately 0.4 miles southeast of Ballast Point;
• In Roanoke Sound approximately 200 feet outside of Shallowbag Bay.
A.(4). Acute Toxicity Pass/Fail Permit Limit (ORTRLY)
The permittee shall conduct acute toxicity tests on a Guarterly basis using protocols defined in the
North Carolina Procedure Document entitled"Pass/Fail Methodology For Determining Acute
Toxicity In A Single Effluent Concentration' (Revised-July, 1992 or subsequent versions). The
monitoring shall be performed as a Fathead Minnow (Pimephales promelas) 24 hour static test.
The effluent concentration at which there may be at no time significant acute mortality is 90%
(defined as treatment two in the procedure document). Effluent samples for self-monitoring
purposes must be obtained during representative effluent discharge below-all waste treatment. The
tests will be performed during the months of February, May, August and November.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGE6C. Additionally, DWQ Form AT-2 (original) is to be sent to the following address:

Permit No. NCO079057
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS (Continued)
SPECIAL CONDITIONS
Attention: Environmental Sciences Branch
North Carolina Division of Water Quality
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 there be no discharge of flow from the facility during a month in which toxicity monitoring
is required, the permittee will complete the information located at the top of the aquatic toxicity
(AT) test form indicating the facility name, permit number, pipe number, county, and the
month/year of the report with the notation of"No Flow" in the comment area of the form. The
report shall be submitted to the Environmental Sciences Branch at the address cited above.
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 the permittee fail to monitor during a month in which toxicity monitoring is required,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 data from either these monitoring requirements or tests performed by the North
Carolina Division of Water Quality indicate potential impacts to the receiving stream, this permit
may be re-opened 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 follow-up testing to be completed no later than the last day of the month
following the month of the initial monitoring.

I b
AFFIDAVIT OF PUBLICATION
FORTH CAROLINA.
Alike Count}. �ss.
Before the undersigned, a Niotary Public of said
FOB'I- NOTICE '-- I State, duly commissioned and authorized to
STATE 0- NORTH, CARD' INA
ENVIRONMo �GTA_ MANAGEMENT COMMISSION baths afffimtations, etc., personally appeared
ICE BOX 2953i
RAl_EIGF: I:ZRTH CAROLINA 27626114i5 ioronoff, Jr., Ni being duly sworn or affirmed,
NOTIFICATION OF INTENT TO ISSUE A STATE NPDES PERMIT
onmsb.rrso:thoroughsmff reviey:ondopphcmionef Ar,icle2l mchapler142,Gene,cISmtaaes law, Cloth depose and say that he is Treasurer of
of Norm Cato]rthr Public Low 92 Management
or, omen law'fal estoistls and nnuta isc rg Norm AND OBSERVER PUBLISHING COMPA>\7'.Persons ys,anmentCl Mave 6'229l noSabsslon Proposes fcissuePgermJt0tliscnarge to the =
Persons listed arcing,effemment a 6229E and subieci,o Speposeiol fermi ati I organized and doing business under the LaNI s of
Persons wishing 10 Icomment upon Orp ale:t0irex22NE All
commentsfionsare Invited 10 Submit
some lnwrumg Rl in The formulasham,e-lnaebrour.AO c.mmemung Inc rrpo,el Oermhoi` ' North Carolina, and publishing a newspaper
y,i u is crosmered in theeld where n of firer,o,of Thmanom regadmg oh coo Al Permit i. P
fines a significant
cot be hem where Inc erect in of o Division o:Enyo-onmen:.l MPn.gemen: HE NEWS AND OBSERVER, in the City of
o vgnibc.m Degree at Public interest in a Proposed Permit.
A copy of fine droll permit is available by writing or calling Inc Division of Environmental Anty an State aforesaid; the said newspaper in
Management, PO Box 29535, Raleigh, North COrohnc,27626-0531, (919) 7337013
notice, paper, document, or legal advertisement
Toes Cod,eS 0 and otter InidrmonCn mini be inspected of moue scan pa our'Int normal office P P
reo...comas Al lnE h co m ens Or Pict ore regarding
Upon raaVasl and pbymEn:of e r fere 0: .d was. at the time of each and every such
regro.^.0 NPDES
Ali Permit
Comments or requests rP9ard ng 0 Propasetl Permit sM1OWO make reference 'JI
,l le NPDes Parma number usiab below. a newspaper meeting all of the requirements and
Dote N29,N6
David A.Doc.ricn for - s of Section 1-?97 of the General Statutes of
A. Preston Howard Jr., P.E. Director
Division of Environmental Management ma and was a qualified newspaper within the
Public nonce at imerr, 10 issue c State NPDES Permit it The following: Section 1-�9 7 of the General Statutes of North
1,NPDES No N0002903.Orval Rol-an, -0-0 box 590,Rolegh NC 27602 dos.Papd for a Permit(� j that as such he makes this affidavit: that he 1$retie . hfaCIi;1 located. Neuse e VIx TP.OIm ndof NCS'h25 . Dun stof Raleigh,
`t(f� %%0,- TIn:o iI'b d sChorge5 dC C f D Of Irs.lea domestic C 0 r al v:osM i ate'
Trull one ocilcii ruc The Neuse Rival,a CICSS C NSWSI eammme NeuseR s snWhchh.sc I the books, files and business of said corporation
7010 flow of 9E/cis regulated.Una'expdns'an.Permitted f imM1 will Be 60.0 MG D.Pour ,porameters
are water quality hmrlea.Fo-some parameters,me avolloble loci capon, cf the'mo lE ence to the files of said publication the attached
receiving water will as cansumeo.TniS may affect fuure water quality bas eC effluent milonart•
for additional dischargers wimir.mis potion at ma wotermeo it for NC DEPT OF DEITNR was inserted in the
2.NPD ES No.NCO079057 To,nof Morteo POST Office Box 24E I v leaf NC 27 nos applied for /
As paper er on dates as follows: 0:!04,9S
N� CPermitounty renewal c acne al . eVIG a l 'I.:C OffO LSmany.,6 26 I ntOC,D0,e P P
County Tire,lac ll drsrnv e50 fit O lre lea domestic antl;ntlus,ral stet ct r rom one
OUt fa 11 nta 5 all. rap Bay a FI $1 E Inc POECVo10 n'a Basin e'I has 0I-COf
Ilal HImO C 13 nod'ssoi ea a% 9 are .letgV 111 lrntrel. arsome Parameters,the nber: 73370li0
Ovalable laoo CaPYt of In-'I'Ime iale a e\ n 'no II be consumed This may affect future
ler P0.10Y bCsec P lu.n larr On. a C^-a�.:. n. as_nor9er5 w h this o.rron of me
�/� 1'.'alerSnea.
3 NPDES NO N'CN3)925 Town of Roper.PO Box 217,Roper,NC 27970 nos applied for c Permit
renewal for a facility located al Inc Roper water Treatment Plant NewOr Street, Raper,
ivashinahm Count Y.The tocillly is permitted 10 diSCTl filter bOCkli w.Sew.le,from ode
e'.'Foll info cr unnamed Tributary,.Albin Canal.a Class CSvvamp SmeOm in the Paspootank Rive-
m Basin,No Paraeters ore water quTy,x limited,out this discharge may affect future 0 I.Clu sons.
li,(gI < NPDES Na.NC0001]32. Daniels Sectood Company, Inc.. Past Office Box 400.W.nchese, INC
27991 has applied for a Permit renewal for 0 f0CJl1Y located at Daniels Seafood Company,on US
fHighwayom0afood rocseast Oi Manley Dare Cperc.ThelaCl Illy diSCM1argto he Rooea waSound Class
from m9 Mle POCbno Court.T from one.iSch Into the R.lno Ee Sounds .ter
SA Stream in Inc Posquotonk River Basin v:hlcn has a Tidal flow.NO Parameters are Wwerquolity
Iimilea but this civcnOrge may affect future P o ic05.
5 NPDES N..NC0026for Perdue renew Incorporated Past located
Office Box d64 Lewiston Woodville,
at
5 NPDES
hell.1,110 tl taro permit renewal for o rated last Of f ce the LeWi460,Le n Facistop the
nterseclion of NCSR 1134 and NC Hianwm 30E,west of Lewiston Woodville,Berne County.The
facility discharges 3e IJIGD of Irehled domestic and industrial wastewater (resulting from a
Chicken Processing Operation),from one pullout into line Roanoke River,a Class C stream In the
Roanoke River Basin which has a 701C flow of 1120 cis.No Parameters are water charily limped.
.,Thin lyteclfuturelshea, porlybosetl effluent l'rmtlalrons for oddbmnoltliscnorgars files of the aforesaid Corporation and publication.
however,
this pail Pan el The Thed.
N\ 6.NPDES NO.NC0035670.County of Dore.Route 1,Box 1690.Morteo,NO 27954 has applied for v
Permit renewal for a tocillly Name.at 51110 Water Treatment Plant on INC Highway 345,south of
MOMPO. Dore County. The facility discharges water softener b.CkwaSh wF,le\Vine, from one
autl011 into on unnamed 1 ib i to C1OOlOh SOUnd,a Class SA stream in the Posquatonk River
1 foal Basin,No Porometersore worst quality limited,but this tliscnarge may acted future allocations.
1 7,NPDES No NCO056065. North Carolina :)apartment of Tr.nsporiat an PO B Minns
Box d0
Harbor,NC27953has Cooled foraeerm'l reneof faro facl Iv OCCledefine Mpiembinlenanca -- ---- ---
Factry,NCSR 1105 soutnof Morns Harbor DoreCounty.Thetor,lilytlschar9s filter bockwash
water from ONfallnto Spencer
c rCreeand .a lasswat from or0in hoar Ssocola rlRry bilgerBa in.No Parameters
Treasurer
„/. are water Cuohly limited,
Crooked his disc stream In the Ptfutu e a River Basin.Na POramalef5
1 are •met oullliv limited, but this discharge Nov vtieci future ollocalions.
E NPDES No.NCO036315.Town of Roper,PO Box 217,Roper,NC 27970 has apolL::ia:a Permr tit or affirmed to, and subscribed before me, this
�r renewal fora Permit renewal fora tailnv lochledat Roper Wastewater Treatment Focil',y.oil USI
64 Bypass,Roper,Washington County The facility is permitted to discharge 0.0651JiGD.flre0led leggy A.D. 1998
Cameslic wlslewarer from one scroll into Main Carol into Kendn;k Creek.a Class GSw.mp IL•
stream m me Posquotonk River Basin which has a 7DIo now of 0.6 cis. Boos,Ammonia,and estimony Whereof, I have hereunto set my hand
dissolved oxygen are water duality Ilmiteo.For some Parameters,the available load Capacity of
the Imorl receiving water will be consumed. This may affect future water quality based m official Seal, the day and year aforesaid.
,k,l effluent limitations for caditicri dischargers within this Portion of the watershed. } } y
9.NPDES No.TIC 0041386.North Carolina Deportment of Economic and Community Develop
1// 1 ment,PO Box 5d9,Wanchese,NC 27961 has applied for o Permit renewal for e facility tainted.I
d ischaesees 0,025 ill must rot Park WWT P .mievime15 r polar from on Ooutto I I to MCounty T he loss SC
tl ream n the Pascual5 MGD al i River 5amesrc vnos 011 oIf to onF o som into M11 ter,Ih ov asa le
Stream 011ie immed to BPsm will ter will
do co .For Some on toaffect me re water
1 A lord My baS2 e1 ire immediate rece' water 11 ee consumed.hiss may affect future water /
gvllYv bled effluent 'm 10l ohs foradditional dischargers thin this Portion at ins watershed.
nr
M 0 NPDES NO NC 0011151 Willie R EIM1e Seafood GOmPOnI'.Inc,,PO box]7,Whnchese.NC Notary Public
27e91 has applied far a permit rs ew.1 t0. a mC IilY located 0t Etheridge Seaf00d Company,
ne,secnan of NC Highway US and NCSR 1143,Wanchese,Dore County.The facility discharges
0035 MGD of Treated industrial woslewtier from two oulfa115 into MiI Creek to Roanoke Sauna,.
Class SC stream In the Posquotonk River Basin which has.foal flow.No Parameters are water M commission expires 2nd day Of JlJL1' dodo.
Fall limited, but This discharge may ofien 'future allocations. P
Ni May d, 1998

VTTHE Invoice
� r for remit to:
OBISER LEGAL A/R 885
I LEGAL ADVERTISING P.O. BOX 2ses
RALEIGH, NC 27602
ACCOUNT NUMBER ACCOUNT NAME FOR CUSTOMER SERVICE:
73370150 NC DEPT OF DEHNR 829-4668
DATE BILLED
O5/04/98
BILLED TO:
NC DEPT OF DEHNR
DIV OF WATER QUALITY BUDGET E
PO BOX 29535
ATTN: FRANCES COTTEN
RALEIGH NC 27626-0535
INVOICE NR PUBLICATION DATE DESCRIPTION SPACE RATE COST
TCVG4K401 05/04/98 PUBLIC/STATE NPDES PERMIT/ P 336 . O1, 2 . 90 974 . 40
INVOICE AMOUNT DUE $974 . 40
OF
�,9f
RETURN REMITTANCE COPY WITH PAYMENT

RECEIVED
WASHINGTON OFFICE
FACT SHEET FOR WASTELOAD ALLOCATIONS 3 0 1998
IN THE PASQUOTANK RIVER BASIN
M.
Subbasin 03-01-51 Alligator River, Croatan Sound and a Portion of
Albemarle Sound
This subbasin consists of the Alligator River and its tributaries, Alligator (New) Lake, part of
Albemarle Sound, Croatan Sound, Roanoke Island and part of Roanoke Sound in Dare County.
Most waters in this subbasin are brackish estuarine, including Albemarle, Croatan and Roanoke
Sounds and the Alligator River to the Intracoastal Waterway. Land use in the area is mostly
forest including the Alligator River National Wildlife Refuge. Roanoke Island, with the cities of
Manteo and Wanchese, is the most developed area in this subbasin. The two largest dischargers,
in this subbasin, Manteo WWTP (0.6 MGD) and Wanchese Seafood (0.025 MGD), are located
on the east side of Roanoke Island.
FACILITIES TO BE STREAMLINED IN THIS PACKAGE (All Minor)
PCCmlti#77, "'` Eacilrt Name " ,_
k.,.�„, . . v-z ,..a011nt3'a RCyVIeWCC,��:
NC0001732 Daniels Seafood Company Dare Myhra
NCO048151 Etheridge Seafood Company Daze Myhra
3 . NCO049140 Dare County East Lake Landfill' Dare Myhra
NCO079057 City of Mante"6 WWTP Daze Myhra
. 5 . NCO035670 Skyco Water Treatment Plant Dare Myhra
6 . NCO056065 Marine Maintenance Facility Dare Myhra
7 . NC0041386 Wanchese Seafood Industrial Park WWTP Daze Myhra
Notes:
The Permittee requested that the permit for this facility be rescinded in a letter dated
December 1, 1997.
Reviewed by
*'Regional Supervis r: Date: z 4q
NPDES Unit: Date: /
RETURN TO NPDES UNIT BY: May 29, 1998

Staff Review and Evaluation
NPDES Wastewater Permit
FACILITY INFORMATION
Facility Manteo WWTP
NPDES No. NC0079057
Design Flow (MGD) 0.6
Facility Class IV
STREAM CHARACTERISTICS
Stream Name Shallowbag Bay
Stream Class SC
Sub-basin 03-01-51
Drainage Area (mil)
S7Q10 (cfs) TIDAL
W7Q10 (cfs)
30Q2 (cfs)
IWC (%)
Proposed Changes Parameters Affected Basis for change(s)
Permit Cover Sheet Added Part IV reference Not part of previous permit
Supplement to Permit Cover Added reference to sludge To address Region comments
Sheet digester, sludge holding tank
and permitted land application
Effluent Limitations and Added effluent page for flow of Plant capacity is 0.6 MGD.
Monitoring Requirements Page 0.6 MGD Limits did not changes since
7Q10 is tidal flow. They have
authorization for expansion to
1.0 MGD.
Effluent Limitations and Deleted Pollutant Analysis APAM monitoring is not longer a
Monitoring Requirements Page monitoring Division re uirement.
Special Conditions Deleted Condition G. Region verified the
requirements of this condition
have been met.
Special Conditions Deleted Condition H. APAM monitoring is not longer a
Division requirement.
Special Conditions Deleted Condition I. This requirement is covered in
the boilerplate language.
Compliance Schedule: n/a
Special Condition(s): See Special Conditions page.
Permits&Engineering Comments:
This is a permit renewal with no reference to modifications at the existing facility.
WLA prepared in 92 was for a flow of 1.0 MGD (7Q10= Tidal Flow). The Limits page in the
existing permit was developed from this WLA. Technically, the facility should have an effluent
sheet for 0.6 MGD and LO MGD. I drafted the permit renewal with a limits page for 0.6 MGD and
one for 1.0 MGD. The limits will remain the same due to the fact that the 7Qio=Tidal Flow.
With two limits pages, compliance will have the opportunity to track the facility's flow to make
sure they are not bumping up against 80-90% capacity. Region, do you have any objections to
this? Ata-

Manteo WWTP
NC0079057
Page 2 of 2
The central office does not have DMR data for the instream monitoring requirements at this
facility. It appears that this facility has not submited instream monitoring data for 1995,
1996 or 1997. Region please comment on this issue. Was this information available for
review at the last compliance inspection?
Several total residual chlorine violations were reported over the last five years. In response
to the chlorine violations, it is understood that the addition of UV disinfection has been
applied for. The staff report indicated that this unit will replace the existing
chlorination/dechlorination system.
It is recommended that the permit be renewed as drafted.
Prepared by: _ A
kl'V' IT.Myhra
Regional Office Evaluation and Recommendations:

CS,,,•,.�pH�`E 1;'r:�v�r Gam.2
A. ( ). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 - October 31) Permit No. NCO(r; 7 �?
During the period beginning on the effective date of the permit and lasting until expiration, die Pemiittee is authorized to discharge from• N.
serial number 001. Such discharges shall be. limited and monitored by the permilttee as specified belnw: 4 R
Effluent Characteristic. Discharge Limitation: F:7onlioring Reguirementa '
pasurement $,om&IS
Monthly Avp Weekly Avg. DON Max Freauencv Tvoe Locatlon
Flow 1 .00 Nrm Continuous Recording I or E
BOD, 5 day, 20°C*' 5.0 mg/I 7.5 mg/1 Daily',,- Composite E, I
Total Suspended Residue" 30.0 mg/I 45.0 mg/1 Daily Composite E, I
NH3 as N 2.0 mg/I Daily Composite E
ss,QlzJ Oxygen•.• Daily — —Gra _ - — E . . .
m Fecal C liloi m eoeiric mean) 14.0 /100 ml 28.0 /100 ml Dam✓_ Gra E�
Total R al Chlorine --- -- —17.0 µg/I Daily Grab E
T em rature Dail „E
To al Nitrogan {NO2 + NO3 + TKN) Quarterly Composite
Total Phosphorus Quarterly Composite E
Acute Tonicity—'* Quarterly Composite E
J
r©* Sample locations: E - Effluent, I - Influent
J **The monthly average effluent BGD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value
(85% removal).
See Part III, Condition E for instmam monitoring requirements.
****The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/l.
0 '-**** Acute Toxicity (Fathead Minnow) P/F at 90%; February, May, August and November, See Part III, Condition F.
-• ,.**** _ -art i- - - -.
The pI-I shall not be less than 6.8 standard units nor greater than 8.5 standard units and shall be monitored as specified in Part III, Condition E.
There shall be no dischp-ige of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMEN':S Si AiMER (April i - October 31) Permit No. NCOOi`� h , �
C {Y
During the period beginning on the effective date of the permit and lasting until expiration, the Permitter is authorized to discharge
serial number 001. (Continued) ?
Effluent Cherecteristic. pischarge LlmJtetlonI Monitoring RegulremenU
Units fsaeclly Measurement SamRle �m
Monthiv Avg Yts9klSr _dYSt t1L-Bfl�X F�9m-n LY-9'H lame .t�
O11 Ys Weekly Composite E
ThN Weekly Instantaneous
Salinity

�k
A. ( ). EFFLUENT LIMITATIONS AND MONITORING REOU?R" MENTS P,rlNTFR (November 1 - March 31) P:-rmit No. NC0079G. w }
During the period beginnit:g on the effective date of the permit and lasting until expiration, the Permiuec is authorized to discharge from ou pfi =
serial number 001. Such discharges shall be limited and monitorfYj by the pemlittee as specified below:
ate: r'
Effluent Charecteds-lc. aischarge Llmhationr Monitoring Requlremena
Measur=VJ3A-, Samale 'Santnle
Efonth!y Ava Weekly Ayo. Daily Max Freauenry Type )<gcatlon
Flow 1 .00 NIGID Continuous Recording I or E
30D, 5 day, 20oC" 10.0 mg/I 15.0 mg/i daily Composite E, I
Total Suspended Residua" 30.0 mg/I "5.0 mg/I Daily Composite E. I
NH3 as N 4.0 ma/I Daily Composite E
Dissolved Oxygen "" Daily Grab E
Fecal Colifom. (geometric mean) 14.0 /100 m! 28.0 /100 ml. Daily Grab E * ' '
Total Residual Chlorine 17.0 µg/I Daily Grab E
Temperature Daily Grab E
Total Nitrogen (NO2 + NO3 + TKN) Quarterly Composite E
Total Phosphorus Quarterly Composite E
Acute Toxicity--
Toxicity-- Quarterly Composite E
�V * Sample locations: E - Effluent, I - Influent
0) ** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 1 S% of the respective influent value
(85% removal).
V *** See Part III, Condition E for instream monitoring requirements.
**** The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/l.
© ***** Acute Toxicity (Fathead Minnow) P/F at 90%r,; Febmary, May, August and November, See Part III, Condition F.
** ee , on i t
The pH shall not be less than 6.8 standard units nor greater than 8.5 standard units and shall be monitored as specified in Part III, Condition E.
There shall be no discharge of floating solids or visible foam in other than trace amo-rats.

�t A'�
p , (). EFFLUENT I IMTTATIONS AND fiIONYrORINC, REQC 7 REMEN I S ex Rration tithe Yermittjee is authoMH
rized to do chsr from o
beginning on the effective date of the permit and lasting untilp
During the period beg g v
serial number OQl. (Continued)
Reaulremenit
i�'echarae�l_mlta_r'_onE rsarement artDle - 91�
Effluent Characte s`la- L.9a@3I2r
nits e?Sr11Y Flea Uen Cy TyR
Monthly Ava y1l�skly__1-y9• Q�L-- '
r.n. uan
t e is Weekly Composite E . .
TKN weekly Instantaneous
Salinity

t e(GS's'
i ass"-A
1 , 'i Part IIIPermit No: NCO079057
E. INSTREAM MONITORING REQUIREMENTS
mg nest expansion
Parameters & Frequency:
Parameter Sample Tops Frcquency
Dissolved Oxygen Instantaneous Weekly
Temperature Instantaneous Weekly
Salinity Instantaneous Weekly
pH Instantaneous Weekly
Fecal Coliform° Grab 2 per month
The above parameters (except for Fecal Coliform) shall be collected as grab samples at one foot
intervals vertically throughout the water column. *Fecal Coliforrn shall be collected by grab
sample approximately 6" below the surface.
Samples shall be collected between June 1 and September 30 each year.
Station Lex:ations: (see attached map detailing locations)
l) At the mouth of Doughs Creek
2) Near the mouth of Scarboro Creek
s3) In Sh lowbag Bay approximmately 800 feet northeast of Sandy Point
4) Li Shallowbag Bay approximately 0.4 trules southwest of Ballast Print
In i%.an3k.= Sound approximately 200 feet outside of Shallowbag Bay
Reportin- Requirements:
Data entered on a form approved by the Division and summarized in an annual report due by
January 1st of the year irrimediately following the summer period where sampling occurred.
Yearly monitoring reports should be sent io:
Instreani Assessment Unit
DEM Water Quality Section
P.O. Box 29535
Raleigh, N.C. 27626-0535
F. ACUTE TOMCII'Y PASS/FAIL PERMIT LIMIT (QRTRLY)
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the
Notch Carolina Procedure Document entitled "Pass/Faii Methodology For Determining Acute
"toxicity In A Single Effluent Concentration." The monitoring shall be performed as a Fathead
Minnow (Pimephales promelas) 24 how static test, using effluent collected as a 24 hour
composite_ The effluent concentration at which there may be at no time significant acute mortality
is 9017c (donned as treatment two in the North Carolina procedure document). Effluent samples for
self-monitoring purposes most be obtained during representative effluent discharge below all waste
treatment. The first test vill be performed after thirty days from the effective date of this permit
during ;he rnonths of February, May, .August and November.

' as {1Lt"
#F
as All toxicity testing results required as part of this permit condition will be entered on the Effluent
�$ Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGE6C. Additionally, DEM Form AT-2 (original) is to be sent to the following address:
Lt>
Attention:
Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607
Test data shall be complete and accurate and include all supporting chemical/physical me.astufements
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 immediateiy 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 data from either these monitoring requirements or tests performed by the North
Carolina Division of Environmental Management indicate potential impacts to the receiving stream,
this permit may be re-opened 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 inval;d test
and will require immediate retesting(within 30 days of initial monitoring event). Failur . to submit
suitable tes!'results will constitute noncompliance with monitoring requirements.
44+
G. DIFFUSER CONDiTiON
A diffuser shall be.employed for outfall. The. outfall shall be located as far from SA and HQW
wavers as possible (approximately 000 to 1500 feet into the channel, see trap) and sl:ali be
constructed in accordance with apr 1 able rules and regulations. The outfall shall be buried such
that &rnage from trowlers and otlier ssels is prevented. The point of discharge shall be clearly
marked with an appropriate light/
H. PO UTANT ANALYSIS CONDPITON
The permittee all conduct a test for pollutants ann/Ilutant
at the effluent from the watment plant.
The discharge sha evaluated as follows: 1) A * analysis of the effluent must be
completed annually u EPA approved method. for the follov.,ing atnalvtic fractions: (a)
purgeables (i.e., volatile o ganic compounds); acid extractables; (c) base/neutral extractables:
(d) organochlotinc pesticides a .d PCB's (e) h rbicides; and 'If) metals and other inorganics. The
�,,.nnual Pollutant Analysis Monit 'ng (AP ) Requirement Reporting Farm A and accompanying
memo, 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 analvsis.
h is monitoring requirement is to tx ref red-to as the "Annual Pollutant Analysis L1or.itor ng
Requirement" (.APAM). \
(2) Other significant levels of organ c chericals must be­identified and approximately quantified.
For the purpose of implementing this requirement, the largest,10 GC/MS peaks in the purgeabie
base/neutral extractable, and aci extractable fractions (or fewer th n 10, if less than 10

unidentified peaks occur) for chemicals other than those specified on the APA Requirement
< i Reporting Form A should be identified and approximately quantified as stated in the APAM
Reporting Form A instructions. This part (item 2) of the APAM requirement is to be referred to as
the "10 significant peaks rile").
I. ENGINEERING TERNATIVES ANALYSIS CONDITION
The permittee shall contin ��ppusly evaluate all wastewater disposal alternatives and pursue the most.
environmentally sound al«'r?t Live of the reasonably cost effective alternatives. If the facility is in
substantial non-compliance with the terms and conditions of the NPDES permit or goverung rules,
regulations or laws, the rmitte\shall submit a report in such form and detail as required by the
Division evaluating th e altemativ�s and a plan of action within sixty (60) days of notification by
the Division. \

CALCULATION SHEET +
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BY �"��-� DATE Z5 CHKD BY DATE
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To : Permits and Engineering Unit �TRF�
Water Quality Section
Attn: -Jeffrey T. Myhra; Non
/VOV U ly4r/nr✓
Date: November 7, 1997 Os�h°9operntL17
)
NPDES STAFF REPORT AND RECOMMENDATION
Dare County
Permit No. NC0079057,
PART I - GENERAL INFORMATION
1 . Facility and Address : Town of Manteo
P.O. Box 246
Manteo, NC 27954
2 . Date of Investigation: November 6, 1997
3 . Report Prepared by: Kimberly D. Hall
4 . Person (s) Contacted and Telephone Number (s) : Butch Luke, Jr.
ORC
919-473-2133
5. Directions to Site: Located at 710 Bowsertown Road off US
Highway 64/264 in Manteo.
6. Discharge Point (s) , List for all discharge points :
Latitude : 35' 34 ' 30" Longitude : 75' 40 ' 11" W
Attach USGS map extract and indicate treatment facility site and
discharge point on map.
USGS Quad No. I-3-y USGS Quad Name: Manteo
7 . Size (land available for expansion and upgrading) :
Land is available for expansion.
8 . Topography (relationship to flood plain included) :
Flat, less than 5 feet above sea level

9 . Location of nearest dwelling: Approximately 100 yards
10 . Receiving stream or affected surface waters : Shallowbag Bay
a. Classification: Class SC
b. River Basin and Subbasin No . : 03-01-51
C . Describe receiving stream features and pertinent
downstream uses :
Shallowbag Bay is bordered by SA shellfish waters
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1 . Type of wastewater:
100% Domestic
a. Volume of Wastewater: 0 . 60 MGD
b. Types and quantities of industrial wastewater: NA
C . Prevalent toxic constituents in wastewater: None
d. Pretreatment Program (POTWs only) : NA
In development Approved
Should be required Not needed X
2 . Production rates (industrial discharges only) in pounds per day:
a. Highest month in the past 12 months : NA lbs . /day
b. Highest year in the past 5 years : NA lbs . /day
3 . Description of industrial process (industries only) and
applicable CFR Part and Subpart : NA
9 . Type of treatment (existing) : Dual train activated sludge
removal system consisting of standby power, mechanical bar
screen, grit chamber, multi-channel mechanical aeration, 2
standard clarifiers, tertiary traveling bridge filters, chlorine
gas disinfection, dechlorination, and post aeration.
5. Sludge handling and disposal scheme : Sludge digestion tank and
sludge holding tank. Sludge land application is permitted
and is transported by Atlantic Nutrients .
6 . Treatment plant classification: Class IV

7 . SIC Code (s) : 4952
Wastewater Code (s) : 01
MTU Code 05-6-x-3
PART III - OTHER PERTINENT INFORMATION
1 . Is this facility being constructed with Construction Grant Funds
(municipals only) ? No
2 . Special monitoring requests : NA
3 . Additional effluent limits requested: none
4 . Other: NA
PART IV - EVALUATION AND RECOMMENDATIONS
The facility was found to be compliant with its NPDES permit and
self-monitoring data . It is recommended to re-issue the NPDES permit
(NC0079057) with the additions of (1) sludge digester, (1) sludge
holding tank, and permitted land application. It is noted that the
addition of UV disinfection has been applied for and will replace the
existing chlorination/dechlorination system.
L'_ rc yy� q. V\<>�
Signature o report preparer
Water Quality R giohal Supervisor
Date

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: Mo.c­A�
Owner or Contact Person:
Mailing Address: F.C5. Q)gX 2LiC. t M C. 0 9 —
County: ID Telephone: Ick,5
Present Classification: New Facility Existing Facility
NPDES Per. No. NC00 "106�- Nondisc. Per. No.WO Health Dept.Per No.
Rated by: X:,,L-tj�L. O. \Aa-�-X Telephone: (qL�) 944�- (o4!6 1 Date: 0 93
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: Grade: N Telephone: ti�3-3513
Check Classification(s): Subsurface Spray Irrigation Land Application
Wastewater Classification: (Circle One) I it III N Total Points:- `� �
-------------------------------------------------------------
IN-PLA_NT PROCESSES AND REI ATEn CONTROL EOLIIPMENTWHICH ARE AN IEEGRAI PAFLTOF INDUSTRIAL PRODUCTION%JALL NOT BE
CONSIDERED WASTE TREATMENT FOR THE PURPOSE OF CLASSIFICATION.ALSO SEPTIC TAM(SYSTEMS CONSISTING ONLY OF SEPTIC TANK
AND GRAVITY NITRIFICATION LINES AREEXEMPT FROM CLASSIFICATICN,
-------------------------------------------------------------
SIBSURFACE CLASSIFICATION SPRAY IRRIGATION CLASSIFICATION
(check all units that apply) (check all units that apply)
1. septic tanks 1. preliminary treatment (definition no. 32 )
2. pump tanks 2. lagoons
3. siphon or pump-dosing systems 3. septic tanks
4. sand fillers 4. pump tanks
5. grease trapinterceptor 5. pumps
6. oil/water separators 6. sand filters
7. gravily subsurface treatment and disposal: 7. grease trap/intercaptor
8. pressure subsurface treatment and disposal: 8. oil/water separators
9-disinfection
10. chemical addition for nutrient/algae control
11. spray irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater In excess of these components shall
be - rated using the point rating system and will require an operator with an appropriate dual certification.
LAND APPLICATION/RESIDUALS CLASSIFICATION(Applies only to permit holder)
1. Land application of biosolids, residuals or contaminated soils on a designated site.
-------------------------------------------------------------
WASTEWATER TREATMENT FACILITY CLASSIFICATION
The following systems shall be assigned a Class I classification, unle9 S the flow is of a significant quantity or the technology is unusually
complex,to require consideration by the Commission on a case-by-case basis: (Check if Appropriate)
1. OiVwater Separator Systems consisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand fillers, disinfection
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed-loop Recycle Systems;
5. Groundwater Remediation Systems consisting only of oiVwater separators, pumps, air-stripping, carbon adsorption, disinfection
and dispo,J;
6. Aquaculture operations with discharge to surface waters;
7. Water Plant sludge handling and back-wash water treatment; .
8. Sealood processing consisting of screening and disposal.
9. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified it permitted after July 1,
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 reclassilication by the Commission, in writing.

The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
ITEM
POINTS
(1) Industrial Pretreatment Units or Industrial Pretreatment Program (see deflntion No. 33)...................................................4
(2) DESIGN FLOW OF PLANT IN gad(rot applicable to non-conlaminated cooling waters,sludge handling facilhies for
water purification plants,totally closed cycle systems(see definition No. 11), and facilities consisting only of hem
(4)(d) or Items (4)(d) and (I 1)(d)):
0 - 20.000....................................................................................................:...........................................1
20.001 - 50.000...........:........................................................................................................................2
50.001 - 100.000........................................:............................................................................................3
100.001 - 250,000................................................................................................................:..................4
250,001 - 500.000..................................................................................................................................5
500.001 - 1.000.000.............................................................................................................................la•x
1.000,001 - 2.000.000.............................................................................'..............................................10
2,000.001 (and up) rate 1 point additional for each 200,000 gpd capacity up to a maximumol .................30
Design Flow (gpd) r _
(3) PRELIMINARY UNITS/PROCESSES(ses defirtion No.32)
(a) Bar Screens...............................................................................................................................................1
or
(b) Mechanical Screens, Static Screens or Comminuting Devices.........................................................................®
(c) Grit Removal...............................................................................................
or ...............................................1
(d) Mechanical or Aerated Grit Removal............................................................................................................/`0'1
(a) Flow Measuring Device................................................................................................................................
or
(I) Instrumented Flow Measurement...............................................................................................................©
(g) Preaeratlon...............................................................................................................................................2
(h) Influent Flow Equalization..........................................................................................................................2
(i) Grease or Oil Separators - Gravity.................................................................................................................2
Mechanical................................................................................................................................................3
DissolvedAIr Rotation...............................................................................................................................b
(I) Prechlorination.........................................................................................................................................5
(4) PHIMARYTREATMENT L14ITSIPFOCESSES
(a) Septic Tank (see definition No. 43)............................................................................................................2
(b) Imhoff Tank..............................................................................................................................................5
(c) Primary Clarhlers.........................................................................................................................................5
(d) Settling Ponds or Settling Tanks for Inorganic Non-toxic,Materials(sludge handling facilities for water
purification plants,send,gravel, stone, and whet mining operations except recreational activities such as gem
orgold mining)........................................................................................................................................2
(5) SECONDARYTRFATMENTLNnWFIOCESSES
(a) Carbonaceous Stage
(I) Aeration-High Purity Oxygen System...............................................................................20
DiffusedAir System.......................................................................................................1 0
Mechanical Air System (Ilxad, floating or rotor)...............................................................[91
Separate Sludge Reiteration............................................................................................
(11) Trickling Filter
HighRate.......................................................................................................................7
StandardRate...............................................................................................................6
PackedTower................................................................................................................5
(Ill) Biological Aerated Filter or Aerated Biological Filter............................................................10
(Iv) Aerated Lagoons..........................................................................................................10
(v) Rotating Biological Contactore......................................................................................10
(vi) Sand Filters -intermittent biological...........
..........
.............................................................2
Recirculating biological....................................................................................................3
(vlll Stabilization Lagoons....................................................................................................5
(vill) Cladfor.........................................................................................................................®
(Ix) Single stage system for combined carbonxeouc removal w 80D and nitrogenous removal by
nhrticatlon (see delinhlon No. 12)(Points for this hem have to be in addition to hems
(5)(a)(1) through (5)(a)(vill),
utllWng the extended aeration process(see definition No.3a) .........................................®
utilizing other than the extended aeration process............................................................8
(x) Nutrient additions to enhance BOD removal......................................................................5
(XI) Biological Culture ('Super Bugs')addhdon........................................................................5
(b) Nitrogenous Stage
(I) Aeration - High Purity Oxygen System.............................................................................20
DftusedAir System.......................................................................................................1 0
Mechanical Air System (fixed, floating or rotor).................................................................5
Separate Shidge Reaeration............................................................................................3
(II) Trickling Fllter-High Rate...................................................................................................7
StandardRate...............................................................................................................5
PackedTower................................................................................................................5
(III) Biological Aerated Fitter or Aerated Biological Filter.............................................................10
(Iv) Rotating Biological Contactors......................................................................................10
(v) Sand Flter-Intermittent biological...................................................................................2
Recirculatingbiological....................................................................................................3
(VI) Clarifier..........................................................................................................................5
(6) TERMRYORADVANCEOTREATMENTWrf$PROCESSES
(a) Activated Carbon Beds-
whhoul carbon regeneration...................................................................................................5
withcarbon regeneration.......................................................................................................15
(b) Powdered or Granular Activated Carbon Feet
,without carbon regeneration.................................................................................................5
with carbon regeneration.....................................................................................................15
(c) Air stripping..............................................................................................................................................5
(d) Denhnticatlon Process;..............................................................................................................................10
(0) Electrodialysls.............................................................................................................................................5
(1) Foam Separation........................................................................................................................................5
(g) Ion Exchange............................................................................................................................................5
(h) Land Application of Treated EH lusts (see definition No.22b) (not applicable for sand, gravel, stone
and other similar mining operations) by high rate Infiltration.........................................................................A
(1) Microscreens.......................................................................................................... ..........................
11) Phosphorous Removed by Biological Processes(See dennhlon No.26)...............................................................
(k) Polishing Ponds - without aeration............................................................................................................2
withaeration.................................................................................................................5
1

(1) Post Aeration - cascade..............................................................................................................................0
diffusedor mechanical.......................................................................................................o
(m) Reverse Osmosis........................................................................................................................................5
(n) Sand or Mixed-Media Filters - low rate.........................................................................................................®
highrate......................................................................5
(a) Treatment processes for removal of metal or cyanide...................................................................................15
Of treatment processes for removal of toxic materials other than metal or cyanide..............................................1 5
(7) SLUDGETREATMENT
(a) Sludge Digestion Tank - Heated (anaerobic)..............................................................................................1A
Aerobic ...........................................................................................................................................
Unheated (anaerobic)................................................................................................................................3
(b) Sludge Stabilization(chemical or thermal)...................................................................................................5
(c) Sludge Drying Beds-Gravhy......................................................................................................................2
VacuumAssisted......................................................................................................................................5
(d) Sludge Elutdatlon.....................................................................................................................................5
(a) Sludge Conditioner (chemical or thermal).....................................................................................................5
(f) Sludge Thickener (gravity).........................................................................................................................5
(g) Dissolved Air Flotation Unit [not applicable to a unh rated as (3)(1)].............................................................0
(h) Sludge Gas Utilization (including gas storage)...........................................................................................
(I) Sludge Holding Tank - Aerated.................................................................................................................
Non-aerated.............................................................................................................................................2
(1) Sludge Incinerator(not Including activated carbon regeneration)................................................................10
(k) Vacuum Fiher, Centrifuge, or Filter Press or other similar dewatering devices...................................................10
(8) RESIDUALS LUILIZATI0NIDISPOSAL(including incinerated ash)
(a) Lagoons..................................................................................................................................................2
(b) Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the land application permit
orlandfill permit.................................................. . . ........................ ©
. . ...... .........................................................................................5
( ) (c) DedicatedLantlflll(budal) by the permittee of the wastewater treatment facility
9
(a) Chlorination.............................................................................................................................:.............�
(b) Dechlorination........................................................................................................................................
(c) Ozone......................................................................................................................................................5
(d) Radiation.................................................................................................................................................5
(10) CHEMICAL ADDITION SYSTEM(S)(see definition No.9)[rot applicable to chemical additions rated as them(3)(1).
(5)(a)(x' , 6 (a), (6)(b), (7)(b), (7)[0). (9a), Ili or (9)(c) 5 points each: /�,
List4ax- .k?F�fF.\.^.........................................................................................................0
.......................................................................................................................................5
......................................................................................................................................5
......................................................................................................................................S
(1 1) MISCELLANEOUS UNITS/PROCESSES
(a) Holding Ponds,Holding Tanks or Sel ing Ponds for Organic or Toxic Materials Including wastes from mining
operations containing nitrogen or phosphorus compounds In amounts significantly greater than Is common
fordomestic wastewater............................................................................................................................4
(b) Effluent Flow Equalization(rot applicable to storage basins which are inherent In lard application systems)......2
(c) Stage Discharge (not applicable to storage basins Inherert In land application systems)..................................5
(d) Pumps..................................................................................................................................................
I IN
(0) Stand-By Power Supply..........................................................................................................................
(1) Thermal Pollution Control Device...............................................................................................................
TOTALPOINTS..........................................................................
CLASSIFICATION
ClassI...........................................................................................................5-25 Points
Class11.........................................................................................................26-50 Points
............................................................................................ .....51.65 Points
pas ......................................................................................................66-Up Points
_____________________________________________________________
Facilhies having a rating of one through lour points,Inclusive,do not require a certified operator.
Facilities having an activated sludge process will be assigned a minimum classification of Class If.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class III.
_____________________________________________________________
.0OD4 DEFINITIONS
The following definitions shall apply throughout this Subchapter.
(1)Activated Carbon Beds. A physlcaVchemical method for reducing soluble organic matedal from wastewater effluert;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 either upflow or downflow carbon beds. Carbon may or
may not be regenerated on the wastewater treatment plant site;
(2)Aerated Lagoons. A basin In which all solids are maintained in suspension and by which biological oxidation or organic matter is reduced through artificially
accelerated transfer of oxygen on a flow-through basis;
(3)Aeration. A process of bringing about intimate contact between air or high purity oxygen In a liquid by spraying, agitation or diffuslon;(3a) Extended
Aeration. An activated sludge Process utilizing a minimum hydraulic detention time of 18 hours.
(4)Agriculturally managed she. Any she on which a crop Is produced,managed,and harvested (Crop Includes grasses,grains,tram, etc.);
(5)Air Stripping. A process by which the ammonium Ion Is first comveded to dissolved ammonia(pH adjustment)with the ammonia than released to the
atmosphere by physical means;or other similar processes which remove petroleum products such as benzene,toluene,and xylem;
(6)Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidize the
absorbed Impurities;
(7)Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary'effluent limits;
(8)Centrifuge. A mechanical device In which centrifugal force is used to separate solids from liquids a,to separate liquids of different denshias;
(9)Chemical Addition Systems The addition of chemical(s)to wastewater at an application point for purposes of Improving solids removal,pH adjustment,
alkallnhy control,etc.;the capability to experiment with afferent chemicals and different application points to achieve a specific result will be considered one
system;the capability to add chemical(s)to dual units will be rated as one system;capability to add a chemical at a different application points for different
purposes will resuit In the systems being rated as separate systems;
(10) Chemical Sludge Conditioning. The addition of a chemical compound such as lime,ferric chloride,or a polymer to wet sludge to coalesce the mass prior to
its application to a dewatering device;
(11) Closed Cycle System& Use of holding ponds or hold0g tanks for containment of wastewater containing inorganic, rr o-toxlc materials from sand,gravel,
crushed stone or other similar operations.Such systems shall carry a maximum of two points regardless of pumping lacilftlw or any other appurtenances;
(12)Combined Removal of Carbonaceous BOO and Nitrogenous Removal by Nitrification.A single stage system required to achieve permh effluent limits on BOO
and ammonia nitrogen within the same blologlcal reactor,
(13) Dechlorfratlon. The partial or complete reduction of residual chlorine in a liquid by any chemical or physical process;
(14) Denitrification Process. The conversion of nhrwa.nhogen to nllrogen gas;

(15)Electrodlalysls. Process for removing Ionized salts from water Inrough the use of Ion-selective Ion-exchange membranes;
(16)Filter Press. A process operated mechanically for partially dewatermg sludge;
(17) Foam Separation. The planned training of wastewater or wastewater effluent as a means of removing excessive amounts of detergent materials through
the introduction of air In the form of fine bubbles;also called loam fractionation;
(18)Grit Removal. The process of removing grit and other heavy mineral matter from waslewater
(19) Imhoff Tank. A deep two story wastewater tank consisting of an upper sedimentation chamber and a.lower sludge digestion chamber.
(20) Instrumented Flow Measurement. A device which Indicates and records rate of flow;
(21) Ion Exchange. A chemical process in which ions from two different molecules are exchanged;
(22) Land application:
(a)Sludge Disposal. A final sludge disposal method by which wet sludge may be applied to land either by spraying on the surface or by subsurface injection
(i.e.. chisel plow); [not applicable for types of sludge described in(11) of this Rule];
(b)Treated Effluent. The process of spraying treated wastewater onto a land area or other methods of application of wastewater onto a land area as a
marls of tinal disposal or treatment;
(23)Microscreen. A low speed, continuously back-washed, rotating drum filler operating under gravity conditions as a polishing method lot removing
suspended solids from effluent;
(24)Nitrification Process. The biochemical conversion of unoxidized nitrogen(ammonia and organic nitrogen)to oxidized nitrogen (usually nitrate);
(25) Nitrogenous Stage. A separate stage of wastewater treatment designed for the specific purpose of converting ammonia nitrogen to nitrate nitrogen;
(26) Phosphate Removal, Biological. The removal of phosphorus from wastewater by an oxirlanoxic process designed to enhance luxury uptake of phosphorus
by the microorganisms;
(27) Polishing Pond. A holding pond following secondary treatment with sufficient detention time to allow settling of finely suspended wilds;
(28) Post Aeration. Aeration following conventional secondary treatment unns to increase effluent D.O. or for any other purpose;
(29) Post Aeration. (Cascade) A polishing method by which dissolved oxygen is added to the effluent by a nonmechanicel, gravity means of flowing down a
series of steps or weirs; The flow occurring across the steps or weirs moves in a fairy thin layer and the operation of the cascade requires no operator
adjustment;thus, zero points are assigned even though this Is an essential step to meeting the limits of the discharge permit;
(30) Powdered to Granular Activated Canton Feed. A biophysical carbon process that utilizes biological activity and organic absorption by using powdered or
granular activated carbon; Virgin or regenerated carbon is lead controlled Into the system;
(31) Preaeralion. A tank constructed to provide aeration prior to primary treatment;
(32) Preliminary Units. Unit operations In the treatment process. such as screening and comminution, that prepare the liquor for subsequent major operations;
(33) Industrial Pretreatment.
(a) Pre-treatment Unit, Industrial. The conditioning of a waste at its source before discharge, to remove or to neutralize substances Injurious to sewers and
treatment processes or to effect a partial reduction in load on the treatment process which is operated by the same governing body as the wastewater
troatment plant being rated;
b) Pre-treatment Program, Industrial-must be a State or EPA required program to receive points on the rating sheet;
(34) Primary Clarifiers. The first wnitrtg tanks through which wastewater is passed in.a treatment works for the purpose of removing settleable and suspended
solids and BOD which Is associated with the solids;
(35) Pumps. All Influent, effluent and in-plant pumps;
(36) Radiation Disinfection or sterilization process utilizing devices emitting ultraviolet or gamma rays;
(37) Reverse Osmosis. A treatment process In which a heavy contaminated liquid Is pressurized through a membrane forming nearly pure liquid tree from
suspended wilds;
(38) Rotating Biological Contractors. A fixed biological growth process In which wastewater flows through tanks in which a series of partially submerged circular
surfaces are notated;
(39)Sand Filters:
(a) Intermittent Biological. Filtration of effluent following septic tanks, lagoons,or some other treatment process In which further blodecomposhion is
expected to produce desired effluents;Hydraulic loading rates on these lifters are computed In gpcVac and have a resulting low gpn✓sf(less than one);
b) Recirculating biological-the came type of sand fitter as defined.ln Subparagraph(39) (a)of this Rule with the added capability to recycle effluent back
through the sand liner;
(40)Sand or Mixed-Medla Filters. A polishing process by which effluent limits are achieved through a further reduction of suspended wilds;
(a)low rate--gravity, hydraulically loaded finer with loading rates In the one to three gpmxsf range; -
(b)high rate--a pressure,hydraulically loaded filter with loading rates in the live gpm/sf range;At any rate,the loading rate will exceed three gpnvsf;
(41) Secondary Clarifiers. A lank which follows the biological unit of treatment plant and which has the purpose of removing sludges associated with the
biological treatment units;
(42) Separate Sludge Reaeration. A part of the contact stabilization process where the activated sludge Is transferred to a tank and aerated before returning it
to the contact basin;
(43) Septic Tank A single-story settling tank in which settled sludge is in contact with the wastewater flowing through the tank; shall not be applicable for
septic tank systems serving single family residences having capacity of 2,000 gallom or less which discharge to a nitrification lield;
(44)Sludge Digestion The process by which organic or volatile matter and sludge is gasified, liquefied,mineralized or converted into more stable organic matter
through the activity of living organisms, which Includes aerated holding tanks;
(45)Sludge Drying Beds. An area comprising natural or artflicial layers of porous materials upon which digested sewage sludge Is dried by drainage and
evaporation;
(46) Sludge Elutdatlon. A process of sludge conditioning in which certain constituents are removed by successive washings with fresh water or plant effluent;
(47)Sludge Gas Utilization The process of using sewage gas for the purpose of heating buildings,driving enginies, etc.;
(48) Sludge Holding Tank(Aerated and Nonaerated). A tank utilized for small wastewater treatment plants not containing a digester In which sludge may be
kept fresh,and supematant withdrawn prior to a drying method(i.e. sludge drying beds);This may be done by adding a small amount of air simply to keep the
sludge fresh, but not necessarily an amount that would be required to achieve stabilization of organic matter. A nonaarated tank would simply be used to
decant sludge prior to dewatering and would not allow long periods (several days of detention) without resulting odor problems;
(49)Sludge Incinerators. A furnace designed to bum sludge and to remove all moisture and combustible materials and reduce the sludge 10 a sterile ash;
(50)Sludge Stabilization(Chemical or Thermal). A process to make treated sludge less odonous and putresable,and to reduce the pathogenic organism
content;This may be done by pH adjustment, chlorine dosing, or by heat treatment;
(51) Sludge Thickener. A type of sedimentation tank In which the sludge Is permitted to settle and thicken through agitation and gravity;
(52) Stabilization Lagoon A type of oxidation lagoon in which biological oxidation of organic matter Is effected by natural transfer of oxygen to the water from
air (not a polishing pond);
(53) Stand-By Power Supply. On she or portable electrical generating equipment;
(54)Static Screens. A stationary screen designed to remove wilds,including nonblodegredable particulate(floatable solids,suspended solids and BOO
reduction) from municipal and industrial wastewater treatment systems;
(55)Tertiary Treatment. A stage of treatment following secondary which is primarily for the purpow of effluent polishing;A sending lagoon or sand or coal filter
might be employed for this purpose;
(56)Thermal Pollution Control Device. A device providing for the transfer of heat from a fluid flowing In tubes to another fluid outside the tubes, or vice versa;
or other means of regulating liquid temperatures;
(57)Thermal Sludge Condilloner. A conditioning process by which heat Is added for a protracted period of time,to Improve the dewaterability of sludge by the
wlubilizing and hydraulizing of the smaller and more highly hydrated sludge panicles;
(50)Toxic Materials. Those wastes or combinations of wastes.Including dlwaw-causing agents which aver discharge and upon exposure, Ingestion.Inhalation
or assimilation Into any organism,either directly from the environment or indirectly by Ingestion through food chains,will cause death,disease,behavioral
abnormalities. cancer, genetic mutations,physiological malfunctions(Including malfunctions In reproduction) or physical deformations. In such organisms or their
offspdng;Toxic materials Include,by way of Illustration and not limitation:lead,cadmlum,chromium, mercury,vanadium,arsenic,zinc,ortho-rtltro-cNorobenzene
(ONCE),polychlorinated biphenyls(PCBs)and dichlorodiphenyl trichloroethane(DDT);and any other materials that have or may hereafter be determined to have
toxic properties;
(59)Trickling Fifter. A biological treatment unit conslsdng of a material such as broken stone or rock over which wastewater is distributed;A high rate trickling
finer Is one which operated at between 10 and 30 mgd per acre. A low rate trickling filter Is one which is designed to operate at one to four Ingot per acre;
(60)Trickling Fitter(Packed Tower). A plug flow type of operation In which wastewater flows down through succowNe layers of media or filtrate material;Organic
material Is removed continually by the active biological fixed growth In each successive layer. This method may produce'secondary'quality effluent,or may be
adapted to produce a nitrlfded effluent;
(61)Vacuum Fifter,Centrifuges,or Fitter Presses. Devices which are designed to remove excess water from abhor digested or undigested sludge prior to disposal
or further treatment.

Facility Notes for Manteo WWTP (NC0079057)
MEMORANDUM
TO: File
FROM: Jeff Myhra
DATE: February 23, 1997
SUBJECT: Permit file review for Manteo WWTP(NC0079057)
Facility Information:
Qµ, =0.6 MGD (Class IV facility)
Shallowbag Bay
03-01-51
Stream Class:
Shallowbag Bay
SC
4-6-61
30-21-03
• WLA prepared in 92 was for a flow of LO MGD (7Q10= Tidal Flow). The Limits page in
existing permit were developed from this WLA. I contacted the Region in reference to the
design flow rate at the facility. My question was why did we grant them a flow of 1.0 MGD
when the plant is only designed for 0.6 MGD. Technically, we should have an effluent sheet
for 0.6 MGD and LO MGD. The region said the facility requested 1.0 MGD in the beginning
and we agreed to permit them at this rate. My recommendation is to develop a limits page for
0.6 MGD and one for 1.0 MGD. The limits will remain the same due to the fact that the 7Q,()_
Tidal Flow, this way compliance will have the opportunity to track the facility's flow to make
sure they are not bumping up against 80-90% capacity.
• Staff report was prepared by Kim Hall. Facility was found to be in compliance with its
NPDES permit and self monitoring data. Region recommends that the permit be reissued with
the addition of one sludge digester, one sludge holding tank, and permitted land application.
• NOVs
- Total Residual Chlorine violation (25 µg/l) March 1997
- Total Residual Chlorine violation (41 µg/1) February 1997
- Effluent Toxicity violation May 1995 ✓
- Total Residual Chlorine violation (20 µg/1) March 1995
- Effluent Toxicity violation February 1995
- Total Residual Chlorine violation (20 µg/1) November 1994
- Total Residual Chlorine violation (41 µg/1) October 1994
- Total Residual Chlorine violation (26 4g/1) September 1994
- Fecal Coliform violation (14.6�p& July 1994
- BOD violation (7.73 µg/1) June 1994
- Fecal Coliform violation (14.6 µg/1) June 1994

Manteo WWTP
NC0079057
Page 2 of 2
- BOD violation (6.59 µg/1) May 1994
- Fecal Coliform violation (135.1 µg/1) May 1994
- BOD violation (6.65 4g/1) April 1994
- Fecal Coliform violation (22.5 µg/1) April 1994
In response to the chlorine violations, the Region mentioned that the addition of UV disinfection
has been applied for. This unit will replace the existing chlorination/dechlorination system.
• Compliance Inspection performed on July 22, 1996. Facility was determined to be in
compliance.
?
11 (,
Staff report was prepared by�zill on November/ 1997. The region recommended that
the permit be renewed as drafted
No special basinwide management strategies apply