NC0034959_Wasteload Allocation_19910604

NPDES DOCUWENT 5CANNIN` COVER SHEET
NPDES Permit:
NC0034959
West Rowan High School WWTP
Document Type:
Permit Issuance
Wasteload Allocatio ram.,
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Staff Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
June 4, 1991
Mims document ism printedl oin reuse paper - igrzore arty
content on the reirerse aside

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0034959
PERMITTEE NAME:
Facility Status: Existing
Permit Status: Renewal
Major Minor �1
Pipe No.: 001
Design Capacity: 0.010 MGD
Domestic (% of Flow): 100 %
Industrial (% of Flow):
Comments:
RECEIVING STREAM: Withrow Creek
Class: C
Rowan -Salisbury Board of Education / West
ScLLool
Sub -Basin: 03-07-06
Reference USGS Quad: E l 6NW (please attach)
County: Rowan
Regional Office: Mooresville Regional Office
Previous Exp. Date: 11/30/91 Treatment Plant Class: 1
Classification changes within three miles:
No change within three miles.
Requested by:
Prepared by:
Reviewed by:
Mack Wiggins
't o b u, l 35 s ► )
)Q L 1✓ L
Date: 4/17/91
Date: 5% t /91
Date: 4613 / /
A,J -
Drainage Area (mil ) S. O
Modeler
Date Rec.
#
54-0
4 t .?) `q'
(o \ 40
Avg. Streamflow (cfs) : 4(2. 4
7Q10 (cfs) .q Winter 7Q10 (cfs) (4.9 30Q2 (cfs)
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring:
Parameters
Upstream Location
Downstream Location
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
30
3 a
NH3-N (mg/1)
_
D.O. (mg/1)
--
—
TSS (mg/1)
30
F. Col. (/100 ml)
pH(SU)
L,- t
6-9
PLO
Comments: No /JN3 -4 aR Fete Co Li 7- "DrkE 70
.114.1 D1LU1h),J KKTIo

*ITV 7, ,
748
' II
II
11
In
•
799
fl 114 ' t— -?
Barbee.
M 758
1. ,
sia bon
J
a
3952
42'30"
3951

A OZZ 6 500
DR = 31, q K� L
Jq l os = 7,1 cis
7grow Jo. to r(s
QAJy _ 33,0 cfs
'1S2 )
11162E f►,Q.0 No (9osr 'SC)
YrCL-DS Ar o Zl ZoG 9Soo 5a
7_I
D!� 31 9
%fp -
DQ 3l ,g
Olaf 33
PA- ^ 31,5
oZ' Z07o4,00 €57
�A-9,7,„;Z
7Qio :2•l c15
79tow =3,1
gAv; " 10
(tows
hJ%L f 1%11 F1 e-01^J e-}eEt (&
yiccos Rr 0ar 2070&Do
79105 2,1
= c,7 O ZZ
7olow 3,1
DA - 977 0.32
/o
- -
DR 9.7 7, v 3
(77
4i
. � Tr S den/ >3<. O, % . Ty (,(S e 6,57! /�/� /1 1 E S f%LOM Q Z f ZO O0
FOk FL? 605 Gs-E. DA 4 S
7Qro5 : Co, 2z-) x ¢.5 9
700,=(o.35)x 4 if,9
yAJy - 0,03) x 4.9 -- 464-

111
f
f;
�
.�
1•�
wzg, c- pet,
3.0_ 1
t? 1,4 &.(Akm.et2:)
Jflgi. . _ _.155. _ JtQL�1T,
opl—
64/ 1_ -_
Ivor
%-7_ _. �� ._.No.%_.._DDCuA4+/.f,-_Ny.._ yvsT,e _._it�l�SiF,rF ._..

-1-
FACT SHEET FOR WASTELOAD ALLOCATIONS
Facility Name :W. Rowan H.S.
NPDES No. :NC0034959
Type of Waste :100% Domestic
Facility Status :Existing
Permit Status :Renewal
Receiving Stream :Withrow Creek
Stream Classification:C
Subbasin :030706
County :Rowan
Regional Office
Requestor
Date of Request
Topo Quad
:MROUA
:M. Wiggins
:4/17/91
:E16NW
Wasteload Allocation Summary
6199
N. C. DEPT. OF NA
Co".RESOLRCES AN TUR4L
%Y DEVELOPMENT
1/1991
Stream Characteristics:
USGS # est
Drainage Area: 45.0
Summer 7Q10: 9.9
Winter 7Q10: 14.9
Average Flow: 46.4
30Q2:
Recommend current limits be renewed. Facility has had 2 flow
violations in the past year and 1 TSS violation.
No NH3-N or Fecal coli. limit will be necessary due
ratio.
Recommended by:
L
Date
sq.mi.
cfs
cfs
cfs
cfs
to high dilution
M AY
Reviewed by
Instream Assessment:
Regional Supervisor:
Permits & Engineering:
RETURN TO TECHNICAL SERVICES BY:
JUN11 1991
Date:
1991
Date: //Q/'i
Date:
I
Date: S/Z��,

-2-
Existing Limits
Wasteflow (MGD) :
BOD5 (mg/1) :
NH3N (mg/1) :
DO (mg/1) :
TSS (mg/1) :
Fecal Coliform (/100 mi) :
pH (SU) :
Recommended
Limits
Wasteflow (MGD) :
BOD5 (mg/1) :
NH3N (mg/1) :
DO (mg/1):
TSS (mg/1) :
Fecal Coliform (/100
pH (SU) :
Limits Changes Due To:
NO CHANGES
CONVENTIONAL PARAMETERS
Monthly Average
Summer/Winter
0.01
30/30
nol
nol
30/30
nol
Monthly Average
Summer/Winter
0.01
30/30
nol
nol
30/30
nol
Daily Maximum
6-9
Daily Maximum
Parameter (s) Affected
6-9
(explanation of any modifications to past modeling analysis
includidng new flows, rates, field data, interacting discharges, etc.)