NC0025054_Wasteload Allocation_19870310

NPDES DOCVNENT SCANNING COVER SLEET
NPDES Permit:
NC0025054
Oxford WWTP
Document Type:
Permit Issuance
Wasteload Allocation :.
(nx`r.
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Staff Comments
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
March 10, 1987
a Nita docu m erit its printed on reuwae paper - ignore any
coriterit on the re‘rero a saide

NPDES WASTE LOAD ALLOCATION
Facility Name: .C1-ri) Op 00-c*D - SouTMS(DL u DUsTR(A(_ WL&1Tp
Existing
Proposed
0
Engineer
Wit'
P2oPe5eb To P.4Mi) Tb 1003R,r6RAcTC ALL 3 6KFeR0 PLAi\\T5
Date Rec.
# ..1
..3419G,
Date )00I8ta _ =
I t. Ta c Ny c F54-c4 L t Ty
Permit No.: Pipe No.: col County: 2/kir•I V
Design Capacity (MGD) : 2 47 Industrial (% of Flow) : ZS`Z Domestic (% of Flow) :
Receiving Stream: Pt S N (t' c.RE& Class: C Sub -Basin: C 3 -< 3 O I
Reference USGS Quad: 5 • Z4- • SL (Please attach) Requestor : g iz , p C-.t'�
Regional Office (2c�
cK v (Zb
(Guideline limitations, if applicable, are to be listed on the back of this form.)
Design Temp.:
7Q10 (cfs) b
Drainage Area (mil) . 2.6
Winter 7Q10 (cfs)
Location of D.O. minimum (miles below outfall):
Velocity (fps) :
o•a
Avg. Streamflow (cfs) : 3.
30Q2 (cfs)
Slope (fpm)
Kl (base e, per day): K2 (base e. t>er day):
Effluent
Characteristics
Monthly
Average
Comments
LP
�x4,3-13
a
r
Lila 6.0
D.c _)
_
Co
(o / p
TSS
3 0
• 3 0 IP
_ce e,1 C.O-‘
(Y,
I oo0
L 000 r co r-R
_ o /
Le-cl
Co-cl Su.
Allocation 0
ed Allocation 0
rmation
Prepared By:
0
Comments:
A-8Y
Effluent
Characteristics
'onthly
).verage
�a; 1 ma ki-o,tu,svt
•L u
0'd5 Ur
IMPIEINIMMIll
1
• sea sc
.
Reviewed By:
LIMITS WEPE BASED UPON I:J:fit'-r a1:CiN
PROCEDURES f:C)I:: DISCHARGERS :f':S TO
LOW FLOW OW STREAMS.
AJ
Date: 3IIIt7-

'
/Request No. :3496
- ^--------------------- WASTELOAD ALLOCATION APPROVAL FORM ---------------------
Facility Name
Type of Waste
Status
Receiving Stream
Stream Class
Subbasin
County
Regional Office
Requestor
Date of Request
Quad
: OXFORD SOUTHSIDE #2
: DOM/IND
: EXISTING
: UT FISHING CREEK
:C
: 030301
: GRANVILLE
: RALEIGH
: BRIDGES
:
: B24SE
(PROPOSED EXPANSION)
Drainage Area
Summer 7Q10
Winter 7010
Average Flow
30Q2
(sq mi)
(cfs)
(cfs)
(cfs)
(cfs>
------------------------- RECOMMENDED EFFLUENT LIMITS -------------------------
: summer
Wasteflow (mgd): 2.17
5-Day BOD (mg/1); 5
Ammonia Nitrogen (mg/1): 2
Oxygen (mg/1): 6
(#/100ml): 1000
(SU): 6-9
C*��/i): ^�.o5
�� ' '-
jissolved
TSS
Fecal Coliform
pH
winter
2.17
10
4
6
30
1006-9
Cni\\: -� " �
--------------------------------- MONITORING
Upstream (f/N): N Location:
Downstream (Y/N): Y Location: NC96
J` _________________________________ COMMENTS _________________-----------
IMITS ARE BASED UPON DIVISION PROCEDURE REGARDING LOW FLOW STREAMS.
PROPOSAL TO CONSOLIDATE OXFORD'S 3 WASTEWATER TREATMENT PLANTS IS A GOOD
IDEA, HOWEVER A MORE SUITABLE SITE WOULD BE ONE THAT HAS A HIGHER 7010
FLOW THAN EITHER UT FISHING OR JORDAN CREEKS. THIS WILL BE EXAMINED AND
A RECOMMENDATION MADE' / c-vVpe^-av^cB ziwc.
^
Recommended by \��t
Reviewed by:
Tech. Support Superviso-i
�
�
Regional Supervisor
Permita & Engineeri
Water Quality Section Chief
Date ��
__?_1.____
Date
Date Alp
Date
Date
Date _

Facility Name Qx.--.-7�� k�4�QF Z
Permit # pr 5pSt4
TOXICITY TESTING REQUIREMENT
The effluent discharge shall at no time exhibit chronic toxicity using
test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay proce-
dure (North Carolina Chronic Bioassay Procedure - Revised *February 1987) or
subsequent versions.
The effluent concentration at which there may be no observable inhibi-
tion of reproduction or significant mortality is Q1 % (defined as treatment
two in the North Carolina procedure document). The permit holder shall
perform „ monitoring using this procedure to establish compliance
with the ermi ndition. The first test will be performed within thirty
days from issuance of this permit. Effluent sampling for this testing shall
be performed at the NPDES permitted final effluent discharge below all
treatment processes, including chlorination. There may be no dechlorination
of the effluent sample prior to testing.
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 chemi-
cal/physical measurements performed in association with the toxicity tests,
as well as all dose/response data. Total residual chlorine must be measured
and reported if employed for disinfection of the waste stream.
Should any test data from this monitoring requirement or tests per-
formed 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 docu-
ment, such as minimum control organism survival and appropriate environmen-
tal controls, shall constitute an invalid test and will require immediate
retesting. Failure to submit suitable test results will constitute a fail-
ure of permit condition.
7Q10 cfs
Permited Flow a,l MGD
Basin & Sub -basin 3 p 9,p(
Receiving Stream La-c F �tr����P� OR,
Recommended By
CovGR)

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