NC0020605_Wasteload Allocation_19880115

N'PDES DOCUMENT SCANNING COVER SHEET
NPDES Permit:
NC0020605
Tarboro WWTP
Document Type:
Permit Issuance
"-)
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Speculative Limits
Correspondence
Re:
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date:
January 15, 1988
This document is printed on reuse paper -Ignore any
content on the reYerse aside

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Reque_tor,
Date of Request
Qu.9- d
: OGi1��T�JG
EXTSTiNG
TAR RIVEER
030303
EDGC'C----MBE
RALEI���H
BRIDGES
6/3/65
D23NE
Draina e Area
(sq mi) : 2180.
A-v rag- Flow
(cfs) : 2230
Summer 7Q10
(cfs) : 90.
Minter 7Q10
(cfs) : 210.
3OQ2
(cfs)
_-_-_-____._M._____________ RECOMMENDED EFFLUENT LIMIT ___________--______-___
tq.---1stefl ow (mgd)
5-nay EI D (mg/1 } : 30
Ammonia IN.+r.ogen (mg/1
so I ved C,xygen (mg/1 } • -
?� (mg/1 ): 30
I-ol iform (#/100ml } : 1000
pH { I} : 6-9
----------------------------------- M0NITC,RING_________________________________
ps r'_arn ; Y,,'N ? : Y Locati :)n : NC 44
Downstream Y/N} : Y Location: NC 42 AND SCR '1400
COMMENTS
M11--INITOR EFFLUENT FCC CCIPPER AND ZINC. LIMITS REhAIN UNCHANGED. MODELING FOR
E �ICIIN TIC, 5.0 hGD IS IN
E-E ATTACHED TOXIC RE+sIUIREMENT.
13 88
Recommended by ha1'iti Date l
Reviewed by
Tech. Support Supervisor
Regional Supervisor
Permits & Engineering
"4C.�,C.-
TURN TO TECHNICAL SERVICES BY
Dates
Date
l/
Date
_ .. Y .. _,.;.yx....,.- ,%'�.$..'^s. �.. 'u,u.'k '.:;.�a'z `. ." �.+4.. ��: - c',s y}�!s -�}F,�,_�4�. pa ,-�.,c1,e�:.;kit isn�;.� ..-t. bc�:t^=y-�VF�. 4.�cS'�!�•a.,...:•,.-n... ,��,�.(..�_ ',�{ �� �.�.� ��sy

Facility Name Permit # _--90(o 6
CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina ceriodal2hnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *February 1987) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is ` . '/ % (defined as treatment two in the North Carolina procedure
document). The permit holder shall perform qua ter COY monitoring using this procedure to establish
compliance with the permit condition. The first test will be performed after thirty days from
issuance of this permit during the months of ter_ 'L Effluent
sampling for this testing shall be performed at the pe'rmitt6i final effluent discharge below
all treatment processes.
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
appropriate parameter code. Additionally, DEM Form AT-1 (original) is to be sent to the following
address:
Attention: Technical Services Branch
North Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
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 test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving stream, this
permit 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 a failure of permit condition.
7Q 10 _ �'iO cfs
Permited Flow, U MGD
IWC% / , q
Basin & Sub -basin 03C� 0,3
Receiving Streamer
- ��-
County Ec(4? (,e&7.be
Recommended by:
Date
**Chronic Toxicity (Ceriodaphnia) P/F at��%, W 40r la/ , See Part , Condition �-

Perm t Number,
: NCO020605
Faci 1 I ty Name
: TARB=DRO WWTF
Type of W,_9 � to
: DC)M/IND
,.
ErIFTiN
030au3
County
: EDGECOMBE
Drainage Area
(sq mi)
:. 2 1 80.
Office
: RALEIGH
Average Flow
(cfs)
: 2230
ReQuestor'
: BRIDGES
Summer 7Q10
(cfs)
: 90.
cf Request-
: 6/3/£35
Wi nter 7Q,10
(cfs,
: 210 .
_u.3d
• D28NE
_-- -------- ------ -- - - - - -- RECC=r=MENDED EFFLUENT LIMIT - -____-____-_-_______-_--_
summer winter~
Y.as -_ -f low
(mgd) :
5
5
3-Day BCD
(mg/1) :
30
30
�=:?,Morl ; ,s Ni trc�en
(mg/l) :
9
18
s,ol ved '2'xyg=n
(mg/1 ) •
5
5
w
mg f :
30
30
30
_Zc,a1 Col i form ( n/
100mI) :
1000
1000
(SU):
6-9
6-3
__-___--__-w____________________ MC, NITCRING------_____-______---____________
pstream (Y/N ` : Y Location' NC 44
ownstream (Y/N) : Y Location: STATE RC'AD 1400
COMMENTS
EE ATTACHED T'U=XI'2 REQUIREMENT'S' FACILITY SEEMS TC= HAVE A PROBLEM WITH HIGH
ECAL COLIFCRM CCUNT, THIS SHC'ULD BE REMEDIED.
IMITS� FOR EXISSTING WASTEWATER FLOW (3.0 MGD) HAVE ALREADY BEEN SENT OUT
R Ai°PRCtVAL/REVIc:W.
rCe5 - r__________________________________ t '3_ ---------
Recommended b y Lo.,7s Date --
R,�vi evved by:
Tech. Support Supervisor
Regional Supervisor
Permits & Engineering
RETURN TO TECHNICAL SERVICES BY
Date g�
Date
Date
W

it , se j
Facility Name __ l a rlC - ro Permit # g?taia 0,6
CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Qrriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *February 1987) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is 8. t , % (defined as treatment two in the North Carolina procedure
document). The permit holder shall perform 9A ter Y monitoring using this procedure to establish
compliance with the permit condition. The first test will be performed after thirty days from
issuance of this permit during the months of Jan AD h 4 -- Effluent
sampling for this testing shall be performed at e N perrzVtte&final effluent discharge below
all treatment processes.
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
appropriate parameter code. Additionally, DEM Form AT-1 (original) is to be sent to the following
address:
Attention: Technical Services Branch
North Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
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 doseiresponse 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 test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving siream, 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 retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute a failure of permit condition.
7Q 10 Ci D cfs
Permited Flow J : MGD
IWC% E
Basin & Sub -basin
Receiving Stream Ta,r 'P, ,
County � o -13
r�
Recommended by:
�L
Date 3
"Chronic Toxicity (Ceriodaphnia) P/F at�)w'/o,� n. AD; ; ft 1.► C. � , See Part P , Condition s

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MOIDEL SUMMARY DATA
• i .� M .,� t,. 4�� , i.. 1
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I LENGTH I c,L,-PE I
VELOCITY
I DEPTH I Kd I
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Ka j KIN I
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I mile I ft/miI
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I 'it Idesignl
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@20' ►design►
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Segment
I I I
1 I 8,1101 0.701
0.444
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13.92 10.28 10,21
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10.48 10.00
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