NC0023965_Wasteload Allocation_19890615

NPDES DOC1 NKMT SCANNINO COVER SHEET
NPDES Permit:
NCO023965
Wilmington - Northside WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Document Date:
Permit Modification
Engineering Alternatives Analysis
201 Facilities Plan
Instream Assessment (67B)
Correspondence re: draft permit
Permit History
June 15, 1989
Date .Range:
THIS DOCUMENT IS PRINTED ON REUSE PAPER - [CHORE ANY CONTENT ON THE
REVERSE SIDE

4ii
NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCOO 9 _> y 6 5
FACILITY NAME: C%
wwn
Facility Status: Dwri i� � pposw
(circle am) — -
Permit Status*,
tatus• REMW� 11.0ex CA°[' m u rr® New
(circM �
Mator aor�
Pipe No:
aU r
Design .Capacity (MGD): — P b
Domestic (X of Flow):
Industrial (X of Flow):
Comments?
R1' co�4luenu
RECEIVING STREAM `' ear Q� r
Class:
Sub -Basin: a- —®6 `"/
Reference USGS Quad: A�lun (please attach)
County:
Regional Off ice: As Fa Me Ra we V1,1 WS
(eirels one)
Requested By: ...Date: 1 �
Prepared By: .Date: 4 8�
Reviewed By. {09 Date.
Modeler
Date Rec.
s
Drainag Arep (m?) $ Avg. Streamflow (cfs): I rr
C-ske� 4re, +a}tv
7Q10 (cfs) 701 Winter 7Q10 (cfs) 30Q2 (cfs)
Toxicity Limits: IWC 1� 7 _ X (circle one) Acute / Chronic
Ginron�c%c r�oda�hn� a JQ ��'�(Y
Instream Monitoring:
Parameters
Upstream N Location
Downstream N Location
Effluent
Characteristics
Summer
Winter
Boos (mg/0
3a
NHi N (mg/1)
N 1k
D.O. (m9/0
1
TSS (mg/0
F. Col. (/100m1)
1,000
"e coMA.t A a
0-fli n 0; . n
A ,ntAM k;--..
i✓lC L an��
!-Gl� d r
c rc
c(a L
la fit,.
fo•-
v�c..c.cssarYi
Comments: I L*0
11
_Wv
tr

Request No.: 5257
------------------- WASTELOAD ALLOCATION
APPROVAL FORM --
RECEIVED
Facility Name:
WILMINGTON NORTHSIDE
WWTP
NPDES No.:
NCO023965
JUN _ i 1989
Type of Waste:
96% DOMESTIC, 4,.
INDUSTRIAL
Status:
EXISTING
Wilmington Re itrnM ' e2
Receiving Stream:
CAPE FEAR RIVER
Classification:
SC -SWAMP
Subbasin:
030617
Drainage area:
8730 sq mi
County:
NEW HANOVER
TIDAL
Regional Office:
WILMINGTON
Requestor:
LULA HARRIS
Estimated freshwater
Date of Request:
5/4/89
Summer 7Q10:
701.00 cfs
Quad:
K27NW
--------------------- RECOMMENDED EFFLUENT
LIMITS ------------ _.-----------------
Recommended Existing
Wasteflow (mgd):
8.00
9.00
BOD5 (mg/1):
30
30
NH3N (mg/1):
NR
NR
DO (mg/l):
NR
TSS (mg/1):
30
30
Fecal coliform (#/100ml):
l000
1000
pH (su):
6.8-9.5
6-9
Toxicity Testing Req.: Chronic/Cer-iodaphnia/Qrtrly
MONITORING--�
Upstream (Y/N): N Location:--
Downstream (Y/N): N Location: J UN 819$9
COMMENTS ------------------ PERMIT: u ENC--ER! �_
FACILITY IS CURRENTLY UNDER AN SOC UNTIL MARCH 1991.
RECOMMEND EFFLUENT MONITORING OF ALUMINUM, COPPER, ZINC, CYANIDE, LEAD,
AND MERCURY IN ACCORDANCE WITH THE PRETREATMENT HEADWORKS ANALYSIS.
RECOMMEND A REOPENER CLAUSE BE INCLUDED IN THE PERMIT TO ALLOW FOR LIMITS
TO BE CHANGED, IF NECESSARY, UPON COMPLETION OF A COMPREHENSIVE WATER
QUALITY ANALYSIS OF THE LOWER CAPE FEAR RIVER BASIN, OR IF THE FACILITY
SHOULD FAIL ITS WHOLE -EFFLUENT TOXICITY TEST.
------------------------------
f�
Recommended by:
Reviewed by
�Regional
Techh Support Supervisor:
Supervisor: _
Permits & Engineering: _
Date: ---------- Da to - ------
RETURN TO TECHNICAL SERVICES BY: ______ WHIL 19 -_

M
Facility Name ���y o� <<tNltn�bri_-' illor S�dG _( 'Permit# �&023965
CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY)
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 (No Lh 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 1.7 % (defined as treatment two in the North Carolina procedure
document). The permit holder shall perform .quarterly monitoring using this procedure to establish
compliance with the permit condition. The first test will be performed after tlz:rry days from
issuance of this permit during the months of ga u Feb.. 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 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 TGP3B. Additionally, DENT 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/ph��sical 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 limit;, 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 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 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 organists 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.
7Q10 01 efs
Permited Flow 8.0 MGD
IWC%
Basin & Sub -basin _ 630617
Receiving Stream cafe Fear cyf r
County Mw r
Recommended by:
I 'L 1
S t
Date OZ/Zy -- — — —
*Chronic Toxicity (Ceriodaphnia) P/F at 1.7 %, Marg v, Nod , See Part 3 , Condition I .

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PRETREATMENT HEADWORKS REVIEW
------------------------------
Discharger:
Receiving stream:
Stream Class:
7010:
Design flow:
Actual flow:
Percent industrial:
IWC:
WILMINGTON NORTHSIDE WWTP
CAPE FEAR RIVER
SC -SWAMP
701.000 cfs
8.000 mgd
5.911 mgd
4.00
1.7 %
05/09/89
Actual
Actual
Allowable
Domestic
Industrial
Pollutant
Standard/AL
Removal
Load
Load
Load
(mg/1)
Eff.
(lbs/day)
(lbs/day)
(lbs/day)
Cadmium
0.005
S
50%
38.28
0.220
0.058
Chromium
0.02
S
50%
153.13
0.430
0.160
Copper
0.01
AL
40`/.
63.81
2.1.50
1.030
Nickel
0.05
S
20%
239.27
0.430
0.120
Lead
0.025
S
50%
191.42
0.430
1.1100
Zinc
0.05
AL
60%
478.54
6.460
2.720
Cyanide
0.005
S
30%
27.35
0.430
Mercury
0.0001
S
1%
0.39
0.040
Silver
0.01
AL
40%
63.81
0.430
Total
Predicted
Allowable
Influent
Background
Effluent
Effluent
Load
Reserve
Conc
Conc
Conc
(lbs/day)
------------
(lbs/day)
---------
(mg/1)
---------
(mg/1)
--------
(mg/1)
--------
Cadmium
0.28
38.01
0
0.0028
0.2877
Chromium
0.59
152.54
0
0.0060
1.1506
Copper
3.18
60.63
0
0.0387
M
0.5753
Nickel
0.55
238.72
0
0.0089
2.8766
Lead
1.53
199.89
0
0.0155
M
1.4383
Zinc
9.18
469.36
0
0.0744
M
2.9766
Cyanide
0.43
26.92
0
0.0061
M
0.2877
Mercury
0.04
0.35
0
0.0009
L
0.0058
Silver
0.43
63.38
0
0.0052
0.5753

05'E19I89
09.54.44
AGENCY PRIMARY CONTACT NAME GKzAN. ZZ ATION
--------------------------------- -------------------------
_ :91.iumNGSp'e3 EAM trC DNt; L !_'.,+r:-FFlr4ITY iEEVMNT
DATA SPECIFICATIONS,
IREQUEST_D FAR -METERS.
PAR1�n CR �f ES A:- ABBREVIATIONS IATIr
J�!"}:l..11� T , 17_ RrSJ Hof%tt i!? i =G!Yii
----------------------------
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**N TE**
NO 7..T -
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:ii .,a:ABi. O �POSI,. R�S,RI TION E r lLi` _D� SC iOTH BRAD art# C?ii'=ua.:t =�l.Y? E [ TYPES
Ec;, INCLUDED COMPUTATIONS WILL BE r�f.r in tli WIi1 uL< REGAARD f , SAMPLE TYPE
*fNDTE**
NO {M'L SITE SAMPLE RESTRICTIONS WERE vPEf.'1 IEi- COMPUTATIONS WILL L INCLUDE STATISTIC,..-L FEATURES OF
THE COS[{=L'SITING PROCESS, PRODUCING VALID REKILTS ONLY WHEN SOPHISTIGATEii .tilF'iSITE4 ARE rti�T =
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