NC0020451_Wasteload Allocation_19840416

NPDES DOCYNKNT SCAMMIM6 COVER .SHEET
NPDES Permit: NC0020451
West Jefferson 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: Aril 16, 1984
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C0,2Xterit on 01taa

Engineer Date Rec. #
NPDES WASTE LOAD ALLOCATION
R_ D 3
Facility Name:
r
Date t'
v
Existing
tJ
00 ZD /
:
Permit No.:
Pie No.:
p
County: -
CD
Proposed Q
63 441
Design Capacity (MGD Industrial (% of Flow): Domestic (%
of Flow):
Receiving Stream:
Class: u Sub -Basin:
Reference USGS Quad: B 13I�iUl
Q
(Please attach) Requestor: 2
_Regional Office
°C
(Guideline limitations, if applicable, are
to be listed on the back of this form.
Design Temp.: '?o`°C_
Drainage Area: - Z Avg. Streamflow: 3.4 S
7Q10:
Winter 7Q10: 0. < 30Q2:
z s
Location of D.O.minimum (miles below
outfall): Slope:
E
C
Velocity (fps) : Or Z�2-
K1 (base e, per day, 200C) : 0 5�
'.— K2 (base
0
e, per day, 20 C) : 30, 3 3
v
Effluent
Characteristics
Monthly
Average
Comments
3©
0P'
�o
EliS5
c c �
DoD
100
L
r a
i.pginal Allocation
Revised Allocation
r
Confirmation
Effluent I Monthly
Characteristics Average Comments
Date(s) of Revision(s)
(Please attach previous allocation)
h,
Reviewed By:
Pr"pared By: ' Y
�(, _ Date:

REQUEST NO, : 856
********************* WASTELOAD ALLOCATION APPROVAL FORM
FACILITY NAME
TYPE OF WASTE
COUNTY
REGIONAL OFFICE
RECEIVING STREAM
-010 1 6 CFS
1RAINAGE AREA
N.C. Dept NRCD
� TOWN OF WEST JFFFFRSON
� DOMESTIC Division 0
Environmental Management
� ASHE Winston-Salem Reg. Office
�WINSTON-SALEM REQUFSTOR ! HELEN FOWLER
1 LITTLE BUFFALO CREEKSURBASIN ! 050702
W7010 : <]^`&CFS 30,Q2 [,1 CFS
� 1^8 SQ~MI, STREAM CLASS !C-TR
RECOMMENDED EFFLUENT LIMITS
WASTEFL0W(S) (MOD) AMY LIMITS APPLY TO SUMMER AND
BCD-5 (MG/L) : 30 WINTER.
NH3-
(M3/L)
�
D.G,
(MG/L)
1
5 ' ""
PH
(SU)
1
6-9
FECAL COLIFORM
(/100ML)|
1000
TSS
(MG/4)
30
RE� CL-
(UG/L)
3
6.2
********************************************************************************
FACIL7TY IS ! PROPOSED ( ) EXISTINS (^~! NEW ( )
LIMITS ARE : REVISION (~~) CONFIRMATION ( ) OF THOSE PRFVIOUSLY ISSUED
�m^^ c(- u~^�,-\ ^
REVIEWED AND RECOMMENDED BY!
MODELER
SUPERVISOR,MODE! TNG GROUP
REGIONAL SUPERVISOR
FERMITS MANAER
�T E� -
� « � T� �
#0
�__ '''''DATE

********** MODFL RFSULTS **********
DISCHARGER !WEST JEFFERSON
RECEIVING STREAM :LITTLE BUFFALO CRFEK
**********************************************************************
THE END D^O^ IS 8,84 MG/L
**********************************************************************
THE END CBOD IS 18^94 MG/L
**********************************************************************
THE END NBOD IS O^OO MG/L
**********************************************************************
THE D.O. MI0 OF SEGMENT 1 18 6°44 MG/L
THIS MINIMUM IS LOCATED AT SEGMFNT MILEPDINT 0
WHICH IS LOCATED IN REACH NUMBER 1
THE WLA FOR SEGMENT 1 REACH 1 IS 110 MG/L OF CBOD
THE WLA FOR SEGMENT 1 REACH 1 IS 0 MG/L OF NBOD
THE REQUIRED EFFLUENT D.O. IS 5 MG/L
7HE WASTEFLOW ENTERING EEG 1 REACH 1 JS 0~5 MGD

.. .
MODEL SUMMARY DATA ***
DISCHARSEl'.
2 WEST JEFFERSON
SUBBASIN :
050702
RECEIVING STREAM
! LITTLE BUFFALO CREEK
STRFAM CLASS:
C-TR
701O
: ,6 CFS ^
WINTER 700 t
CFS
DESIGN TEMPERATURE
1 20 DEGREES C.
WASTEFLOW t
~5 MOD
}LENGTH!SLOPE }
VELOCITY |DEPTH ! K1 }
Kn
| SOD | K2 | NetPS|
}MILES QT/MI !
FPS | FT | /DAY |
/DAY
|MG/M2D|/DAY |MG/L/D|
SEGMENT 1 | 2^301 67,001
0^252 \ 001 1 0^54 !
0.00
| O.O| 30,331 0001
REACH 1 ( | |
| ! {
| ( | !
ALL RATES ARE AT 20 DEGREES C.
*** INPUT DATA SUMMARY ***
I
FLOW
i CBOV
| NBO0 |
D^O^ )
7
CFS
| MG/L
| MG/L. /
MG/L I
SEGMENT 1 REACH 1 !
.642
|
} |
|
WASTE |
O.TTA
1110,000
| 0.000 |
51000 |
HEADWATERS!
0^600
1 ?,OOO
| 0^000 |
8^300 |
TRIBUTARY |
0°000
( O^OOO
! 0.000 |
0.000 1
RUNOFF * |
0^960
| 2^000
| 0~000 |
8^300 |
= = = ==================================================
* RUNOFF FLOW IS IN CFS/MILE

-�,,, Ll S-�-
ow = 0, 165,-
QS t - OIZ, 419 - , n�A`� , 1t.gv0 ,f6s"
IN
zA F
1,e,�

f** MODEL. SUMMARY DATA ***
DISCHARGER
W. •.!!"FFER.SON
.SI. BBA.SIN
050701
RECEIVING STREAM
1 LITTLE BUFFALO
STREAM CIASS:
C-TR
7Q1.0
t .6 CFS
WINTER 701.0
!
CFS
DESIGN TEMPERATURE
1 21. DEGREES C.
WASTFFL OW
:
.1.77 MOD
I L..ENGTH I SLOPE I VF.:KOCTTY I DEPTH I I{1 I I\1. I K? I K? I Kn I
I MILES I FT/MI I FPS I FT I /TRAY ! C20 I /DAY 1 @20 I /TRAY I
! I 1 ! I I I 1 1 I
SEGMENT 1 1 2.301 67.001 0.31.9 1 0.64 1 0.68 1 0.65 139.281 38.431 0*001
REACH 1. 1 1 ! ! I f 1 I ! I
FOR SOC
*** INPUT DATA SUMMARY ***
I
FLOW
I C,B60 I
NBOD I
D.G. I
I
CFS
I MG/I.. I
MG/L I
MG/L. 1
I
SEGMENT I REACH i I
I 1
I !
I
1
I
I
WASTE 1
0.242
1 85.800 1
0.000 1
6.000 1
HEADWATF..RS I
0.600 1
2.000 1
0.000 1
8. 1.00 I
TRIBUTARY 1
0.000 1
0.000 1
0.000 1
0.000 1
RUNOFF 7k 1
0.960 1
2,000 1
0.000 1
8.1.00 1
* RUNOFF FLOW IS IN CFS/MILE

* * MODEL RESULTS
DISCHARGER :WEST JEFFFIONION
RECEIVING STREAM
THE END D.O. IS 8.8MG/L
THE END CBOD IS 7.18 MG/L
THE END NBOD IS 0.00 MG/L
THE D.CI. MIN* OF SEGMENT I IS 7.44 MG/L
THIS MINIMUM IS LOCATED AT SEGMENT MILEFOTNT 0
WHICH IS KOCATED IN REACH NUMBER I
THE WL.A FOR SEGMENT 1 REACH I IS 85.8 MG/L OF CBOT.,
THE WLA FOR SEGMENT I REACH I IS 0 MG/L. OF NPOD
THE REQUIRED EFFLUENT D40. IS h MG/L
.THE:. WASTEF'LOW ENTERING SE:G I REACH I IS 0.177 MGD

MODEL RESULTS
DISCHARGER :WEST JEFFERSON
RECEIVING STREAM ;LITTLE BUFFALO CREEK
THE END I.Q. IS 8.86 MG/L
THE END CBOD IS 6.58 MG/L..
THE END NBOD IS 0.00 MG/L
THE L+0. MIN. OF SEGMENT I IS i. 0 MG/L
THIS MINIMUM IS LOCATED AT SEGMENT MILEPOTNT 0
WHICH IS LOCATED IN REACH NUMBER I
THE. WLA FOR SEGMENT 1 REACH 1 IS 85.8 MG/L OF CROD
THE WL..A FOR SEGMENT I REACH i TS 0 MG/L OF N BOD
THE REQUIRED EFFLUENT D.O* IS 6 MG/L
THE WASTEFLOW ENTERING SEG I REACH I IS 0.1561 MBD

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fp�ue4
Po
Q.d�{..t/—r^n�1n.�y �, O U �; _�,, � ( �f„�, ,� j t oV JC+� din' e.�.. �_ —��QQ � �! / � . ✓

**** MODEL RESULTS****
DISCHARGER :WEST JEFFERSON
RECEIVING STREAM :LITTLE BUFFALO CREEK
THE END D,O. IS 8,80 MG/L
THE END CBOD IS 14.71 MG/L
THE END NBOD IS 0.00 MG/L
THE D.O. MIN. OF SEGMENT 1 IS 7.32 MG/L
THIS MINIMUM IS LOCATED AT SEGMENT MIL.EPOINT 0
WHICH IS LOCATED IN REACH NUMBER 1
THE WLA FOR SEGMENT 1 REACH 1 IS 113 MG/L. OF CROD
THE WLA FOR SEGMENT 1 REACH 1 IS 0 MG/L OF NSOD
THE REQUIRED EFFLUENT D*O. IS 5 MG/L
THE WASTEFLOW ENTERING SEG 1 REACH 11S 0.1629 MGI1

#**#*### MODEL MUL.TS *#########
DISCHARGER .WEST JEFFERSON
RECEIVING STREAM :LITTLE BUFFALO CREEK
THE END I.O. IS 8.80 MG/L
THE END CBOD IS 14.79 MG/L
THE END NHOD IS 0.00 MG/L
THE I.O. MIN. OF SEGMENT 1 IS 7.32 MG/L
THIS MINIMUM IS LOCATED AT SEGMENT MIL.EPOTNT 0
WHICH IS LOCATEIE IN REACH NUMBER 1
THE WLA FOR SEGMENT 1 REACH 1 IS 113 MG/L OF CROD
THE WLA FOR SEGMENT 1 REACH 1 IS 0 MG/L OF NBOD
THE REQUIRED EFFLUENT I.O. IS 5 MG/L
THE WASTEFLOW ENTERING SEG 1 REACH 1 IS 0.164 MGD