NC0021644_Wasteload Allocation_19860923

NPDES DOCUMENT SCANNIN` COVER SHEET
NPDES Permit:
NC0021644
La Grange WWTP
Document Type:
Permit Issuance
Wasteload Allocation`
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
September 23, 1986
This document is printed on reuse paper - iiore any
content on the reirerse side

NPDES WASTE LOAD ALLOCATION
Facility Name: Let- 0-,
Existing ©
Proposed 0 Permit No.: Al b ,7 Pipe No . :
Design Capacity (MGD):
Receiving Stream: 1 r l ° S "` Lj Cr-QL Class: C -Sc) Sub -Basin: O 3 0(0 5
cameo ca
' C Industrial (% of Flow) :
Engineer
SE Z
DO
Date Rec.
3/i2,R4,
Date
- 1
Sias l
County: ;(—
Domestic (% of Flow) : / O O
Reference USGS Quad: P g-72 5 E
(Guideline limitations if
(Please attach)
Requestor :
Regional Office i''- ko
placable, are to be listed on the back of this form.)
Design 'mp.:
7Q10 (cfs) O.(
Drainage Area (mi2): 07 ( Avg. Streamf low (cfs) :
Winter 7Q10 (cfs) 30Q2 (cfs)
Location of D.O. minimum (miles below outfall):
Velocity (fps):
v. i
Slope (fpm) �?
Lu72o
Kl (base e, per day) : 6.1 3 ;, K2 (base e. per day) : 0. 5 3
Effluent
Characteristics
Monthly
Average
Comments
Sys
tlR
6
'"1,r"`e"-
lok-L&)
a
ie
•
00
cp
I-2
TSS
3 c
t to
\- cca C„I-; 0r
(000
A00,12
A14 I /I QiC-C'-
0--
-
Origin
Revised
Confi
V
tl"n 0
0
epared By : t
i-8V
Effluent 7
Characteristics
;'onthly
i -verage
Comments
0
1D
1o(:--
r/-P
i 65
30
rCok'ACr('ti
Y�cPl !
71(Q
J
ICOb /NOv Q,
,
0-1.
(o- q. S C..
Comments : R p, 4(ce c; c 1,u.( -tt„ Eto •
cL!)
Reviewed By:
Date: 97237,56

Qequest No. :3128
WASTELOAD ALLOCATION APPAOVAL FOAM
+/ `'`
'
Facility Name � LACAANCE WWTP p`
. I `-.
Type of Waste DOM
Staxus EXISTINC
�
Peceiving Stream � M�S�LY CAEEK
S�ream Class � CW
Subbasin � 030405
County LENOIQ
AeQional OfficWAS HIN(.3TON DrainaQe Area (sq mJ. 2 71
AequesT,or CAEECH Summer 7A10 (cfs0 1
Date of Pequest Winter, 70.10 02
(Auad F27SE 3.5
AECOMMENDED EFFLUENT LIMITS
summer winxer
Aasteflow in gd)� .6 .6
5-Day BOD (mg/l>� 5 10
Ammonia Nitrogen (mg/l2 4
Dissolved Oxggen (III g/l6 5
TSS (mQ/l30 30
Fecal Coliform (41;/100ml1000 1000
pH (SU6-9 6-9
............ .................... .... ................ .... ................ .... ............................................ COMMENTS .... ........ .... .... .... .... .... ......... ..... ----------------- ---
("�|4��-_�� ^,� �d/v���� |��*�t,
' -
Aecommended by
Aeviewed by�
Tech Suppor% Supervisor
/
(
Peg�onal Supervisor _��
Permi�s & Enqineeri '
J
Date
���
"
���e~(�w^.�� � ���xw^ `m^r� ��/ � � ~~`�=~� � ///o�
. ` /
Ae

•
k LtuTPI
z 4c,0
i
cD4= 3.5
•€01175 = 0, l
100.2
e-(e
*02 ogg2, 8 `8
3..;
„ .at 9dz,�� =0.2
a. I
Esk.
leDc0S_ .2BS
O.
2),\ p 7 ao
elAI6ei;4!7 . / .16
/J �v0i3, Jzi .e 52
4A/2t re4A- /42 6t=-C-4 ,(1-1.~-6c, 4,er
S2

3
tPq-RO 4.4 r -- 3.5 _ c>2
os-R(:), 0.z.6 - 0. ' ._ _ __o.d?

- --- MODEL RESULTS
Discharger : TOWN OF LAGRAN8E
Receiving Stream., : MOGELY CREEK
The End D.O. is 5.20 mg/l.
The End CBOD is 3.23 mg/l.
The End NBOD is 0.00 mg/l.
Segment 1
Reach I
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/l) (mg/l) (Mg/1) (mgd)
4.98
0.90 1
�
7 0.00 5.00 0.60000

*** MODEL SUMMARY DATA ***
Discharger a TOWN OF LAGRANGE
Receiving Stream : NOS LY CREEK
Summer 7010 „ 0..1
Design Temperature: 26.
3uLibas i n w 030405
Stream Class: C-SW
Winter 7010 : 0.2
LENGTH! SLOPE! VELOCITY 1 DEPTH: K1 1 K1 1 K2 1 K2 ! KN : KN KNR 1 KNR
mile 4 ft/mil fps # ft design; 320° ;design: 320° :design: 320° design; 320°
Segment 1 : 2.101 2.901 0.101 1 0.86 0.48 1 0.36 1 0.60 1 0.53 0.00 1 0.00 0.00 1 0.00
Reach 1 1
Flow cr-sr l c NI3OD D.O.
i cfs i mg/ i mg / i mg/1
SefgmSegment1F3each 1
W Waste I .930 I 7.000 I 0.000 I 5.000
Headwaters' 'l:etrs' 0.100 i P.000 : 0.000 I 7.400
Tributary : 0.000 i 0„000 : 0.000 I 0.000
' • Runoff I 6.090 ; 2 .. 00i„f I 0.000 I 7.400
Runoff flciw is in cfs/mile

/
^
,
Discharger
Receiving Stream
--- MODEL RESULTS
: TOWN OF LA8RANGE
: MO8ELY CREEK
The End D.O. is 5.08 mg/l.
The End CBOD is 4.06 mg/l.
The End NBOD is 0.00 mg/l.
Segment 1
Reach 1
WLA WLA WLA
DO Min CBOD NBOD DO Waste- Flow
(mg/l) Milepoint Reach # (mg/l) (mg/l) (mg/l) <mgd)
1.80 1
9 0.00 6.00 0.60000

*** MODEL SUMMARY DATA ***
Discharger
c, TOWN OF L_AGRANCE:
Receiving Stream n HUSFLY CREEK
Summer 7010 : 0.1
Design Temperature: 26.
Subbasi.n " 030405
Stream Class: C-SW
Winter 7010 M 0.2
ILfti6THI SLOPE VELOCITY s DEPTIH K1 I Ki I K2 1 K2 I KN I KN 1 KNR I KNR I
mile 1 ft/mil fps ft !design; H20° !design! 320° Idesign1 220° (design; 220°
Segment 1 1 2.101 2.901 0.101 0.86 1 0.48 ; 0.36 1 0.60 1 0.531 0.00 1 0.00 ; 0.00 ; 0.00 I
Reach 1 l 1
' Flow
1 cfs
Segment . Reach 1
Waste 0.930
Headwaters: 0.100
Tributary) S 0.000
* Runoff I 0.090
CEtOD NDCD ; D.O.
mg/1 rig/1 1 mg/1
9.
000 i 0.000
: i
2.000 i 0.000
i ;".(7L)If.)(.(1!)
0.000 1 0.000 1 0.000
2.000 ; 0.000 1 7.400
* Runoff flow is it cfs mile

x
Discharger
Receiving Stream
~--------- MODEL RESULTS
: TOWN OF LAGRAN8E
: MO8ELY CREEK
The End D.O. is 4.97 mg/'.I..
The End CBOD is 4.89 mg/l.
The End NBOD is 0.00 mg/1.
DO Min CBOD NBOD DO Waste Flow-
(mg/1) Milepoint Reach # (mg/,I) (mg/1) (mg/1) (mgd>
Segment 1 4.97 2.10 1
Reach 1
11 0.00

*** MODEL SUMMARY DATA ***
Discharger :: TOWN OF LAGRANGf:=
Receivi.ng Stream :: MO RELY CREEP
Summer 7E110 : 0.1
Design Temperature:: 26.
Subbas i n g 090405
Stream are Class:: C—SW
Winter 7Q1O n 0.,2
;LENGTH! SLOPE! VELOCITY f DEPTH! K i f K i f K2 ; K2 f KN f KN f KNR f KNR
f mile ; ft/mil fps f ft ;design! 320° !design: 320° :design 020° design 320°
Segment 1 f 2.101 2.901 0,101 f 0.86 1 0.48 f 0.36 f 0.60 f 0.531 0.00 f 0.00 f 0.00 f 0.00
Reach 1 f 1 1 f f
1 Flow f CBC}D f f;IBOD D.O.
cfs f mg/1 1 mg/1 s mg/1
Segment I Reach 1
Waste f 0.930 11.000 ; 0.000 : 7.000
Headwaters! 0.100 2.000 : 0.000 i 7.400
Tributary 1, 0.000 0.000 1 0.000 1 0.000
• Runoff f 0.090 2.000 ; 0.000 1 7.400
* Runoff flow is in cfs/mile