NC0024937_Wasteload Allocation_19810421

NPDES DOCUMENT SCANNING: COVER SHEET
NC0024937
Sugar Creek WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation .{
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Draft Permit
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
April 21, 1981
This document is printed on reuoae paper-1g►iiore any
content am the reverse side

4.0
Facility Name.
E
o Existing
c,
co Proposed 6.7
Q p/
`-' Design Capacity (MGD) : / . v l Industrial (% of Flow) : il� a Domestic (% of Flow): Jo /C,
_ //�� c n ��//' �r
o Receiving Strealii .54141vt. C�/tet/L Class: C!-- Sub -Basin: 03 —o S ®a Y
= /'
o Reference USGS Quad: ''�1 /J-Pi(Please attach) Requestor• —2 e (�•i Regional Office
cu
(Guideline limitations, if applicable, are to be listed on the back of this form.)
.8,45pr./4( Z//:// / 4 wit
NPDES WASTE LOAD ALLOCATION
14/eAse
Permit No • i&010 299 7 Pipe No.: 000 /
County:
Date • / //, efil ! /c1811. '
ifeCEAVilWee
Design Temp • as'C //S °C-fcr
7Q10: 3, 5 Cf5
Drainage Area:
4/S2.m
Winter 7Q10: S' S c }
aLocation of D.O.minimum (miles below outfall) . .� sunn,.G. (o•o�.:;ftY
c.,
col
aD
s—
epared By:
Velocity
(fps) : D,Co3
Avg. Streamflow:
30Q2• r;'.7c•F5
Slope •
K1 (base e, per day, 20°C): (1 ' / a K2 (base e, per day, 20°C): °' 7'/
Effluent
Characteristics
Monthly
Average
Comments
60 D5—
ri My/l
u—AIV//
DO
cm //
T .5
30r149/1
-y $tU.
I k
�i %rrii
/X//00»
Original Allocation
Revised Allocation
-10N err e 1 /tyk., )
/%, h l(f/.GCXe(IG/u , 7 Reviewed By:
AVild
Effluent
Characteristics
Monthly
Average
Comments
P�P-5-
50) /
DU
sA i
is5
Foi 1
ra / (o/il %Jrno
/O//a7A^l
re
Date(s) of Revision(s)
(Please attach previous allocation)
Date:

Form #001
WASTE LOAD ALLOCATION APPROVAL FORM
4#53
Facility Name: Sugar Creek WWTP
County: Mecklenburg Sub -basin: 03-08-34
Regional Office: Mooresville Requestor: Dave Adkins
Type of Wastewater: Industrial 10
Domestic 90 %
If industrial, specify type(s) of industry:
Receiving stream: Little Sugar Creek Class: C
Other stream(s) affected: Class:
7Q10 flow at point of discharge: 3.5 (summer) 5.5 cfs (winter)
30Q2 flow at point of discharge: 8.7 cfs
Natural stream drainage area at discharge point: 41 mi2
Recommended Effluent Limitations
Qw = 14.67 mgd
Summer Winter
BOD5 21 mg/1 30 mg/1
NH3-N 8 mg/1
DOw 5 mg/1 5 mg/1
TSS 30 mg/1 30 mg/1
pH 6-9 SU 6-9 SU
All of the above limits are month averages.
This allocation is: / / for a proposed facility
for a new (existing) facility
/x/ a revision of existing limitations -reduction of design
a confirmation of existing limitations
flow.
Recommended and reviewed by:
k J -(2
Date:
Head, Techncial Services Branch ;1!�(�i�2i�C Date:
Reviewed by: -� eP.,,,de
Regional Supervisor ,,,�,L
Permits Manager M��'� Approved by: ,
Division Director e1;r1z--
Date Y/
Date:'Mt,/
Date:

4 SI`11LAT.VE CAPACITY DATA:
PARAMETER
• w (MGD)
s Cw (mq/1)
Nw (mg11)
DOw (mg/1)
Os (mg/1)
Cs (mg/1)
Ns (mg/1)
DOS (mg/1)
Or (mg/1)
Cr (mq/1)
Nr (m9/1)
IX1r (mq/1)
K1 (base e)
Kc (base e)
Kq (base e)
Knr (base e)
V (fps)
DOsat (mg/1)
N (per mile)
K2 (base e)
4 Temp. (0C)
Su
ect4t40-
Cutsanknik
ALLOCATION
Pi. 407
3.3,o
R.?
A
A

DIVISION OF ENVIRONMENTAL MANAGEMENT
April 21, 1981
MEMORANDUM
TO: Dave Adkins
Mooresville Regional Office
FROM: Forrest Westall, Head
Technical Services Branch
SUBJECT: Seasonal Effluent Limitations - City of Charlotte
Sugar Creek WWTP
Technical Services has completed its wasteload allocation modeling for
the subject facility per your request dated March 12, 1981. Adjusting
the allocation model for winter 7Q10 flow and temperature resulted in the
following effluent limits for Sugar Creek in accordance with rule 15 NCAC
2B.0404:
Flow - 14.67 MGD
BOD5 - 30 mg/1
D.O. - 5 mg/1
TSS - 30 mg/1
pH - 6-9 S.U.
Fecal Coliform - 1000/100 mi
Please note that this rule requires "a rationale as to the need for such
limitations" be provided by the City of Charlotte. In addition, the summer
limitations are:
Flow - 14.67 MGD
B0D5 - 21 mg/1
N83-N - 8 mg/1
TSS - 30 mg/1
pH - 6-9 S.U.
Fecal Coliform - 1000/100 ml
Please call if you have any questions.
cc: Bill Mills
drPoston
Lewis