NC0037371_Wasteload Allocation_19870303

NPDES DOCUMENT :SCANNING: COVER SHEET
NPDES Permit:
NC0037371
North Iredell High School WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
March 3, 1987
This document ita printed on reuse paper - ignore any
content on the re -liner -ate *side

Facility Name:
Existing V
Proposed p
1 NPDES WASTE LOAD ALLOCATION
I
IJor- 4 red1c I1 161 .-l+orb)
Permit No .: 14GOO 3'737 f Pipe Nb . :
Design Capacity (MGD): Q,()(ZS Industrial (% of Flow):
Receiving Stream: `Irai l-0►'5,Dln (>424 Class:
4-4a v'wwK
Reference USGS Quad: j� JC> f `�"d(Please attach) Requestor: J.�te,5 l� Regional Office + (2',
)
C
Engineer
ab/
a
Da e Rec.
24VA, ,
Date 1 24
County:
3(c00
Domestic (% of Flow) : j 07D
Sub -Basin: 03- 07 -O(o
(Guideline limitations, if applicable, are to be listed on the back of this form.)
Design Tbnp.:
7Q10 (cfs) 0.075
Drainage Area (mi2.) : D.PA Avg. Streamflow (cfs) : a 3
Winter 7Q10 (cfs) CCCI 75"
30Q2 (cfs) O_ 075
Location of D.O. minimum (miles below outfall) : Slope (fpm) lOS
Velocity (fps) :
K1 (base e, per day):
K2 (base e. per day) :
Effluent
Characteristics
Monthly
Average
Comments
Tyr
.3°�P
r_ _
.
6-9 J: a
,pi/
1
1
Ori
Reefs =• • loca • on
Cb.;i -tion
Prepared By:
ation
Comments:
iPt"<ee4
i-8V
Effluent t
Characteristics
:'onthly
r.verage
Comments
Reviewed By:
PLOTTED
Date: 3/7/77

WASTELOAD ALLOCATION APPROVAL FORM
Request No. :3600
Facility Name
Type of Waste
Status
Receiving Stream
Stream Class
Subbasin
County
Regional Office
Requestor
Date of Request
Quad
NORTH IREDELL HIGH
DOMESTIC
EXISTING
UT PATTERSON CREEK
C
030706
IREDEL
MRO
SHANK IN
11/24/86
D15NE
Wasteflow (mgd):
5-Day SOD (mg/1):
Ammonia Nitrogen (mg/1):
Dissolved Oxygen (mg/1):
TSS (mg/1) :
Fecal Coliform (#/100m1):
pH (SU) :
SCHOOL
Drainage Area (sq mi)
Summer 7Q10 (cfs)
Winter 7Q10 (cfs)
Average Flow (cfs)
30Q2 (cfs)
RECOMMENDED EFFLUENT LIMITS
0.0125
30
NR
NR
30
1000
6-9
Upstream (Y/N):
Downstream (Y/N):
Location:
Location:
Recommended by
Reviewed by:
MONITORING
COMMENTS
Tech. Support Supervisor
Regional Supervisor
: 0.26
: 0.075
: 0.075
0.3
.075
Permits & Engineering
Date
Date
Date
Date

MODEL RESULTS
Discharger- : NORTH IREDELL HIGH SCHOOL
Receiving•Stream : UT PATTERSON CREEK
The End D.O. is 8.16 mg/1.
The End CBOD is 2.20 mg/1.
The End NBOD is 0.00 mg/1.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 6.20 0.00 1
Reach 1 110 0.00 0.00 0.01250
Reach 2 0 0.00 0.00 0.00000

*** MODEL SUMMARY DATA ***
Discharger : NORTH IREDELL HIGH SCHOOL Subbasin : 030706
Receiving Stream : UT PATTERSON CREEK Stream Class: C
Summer 7Q10 : 0.075 Winter 7Q10 : 0.075
Design Temperature: 23.
4.2iNgrEi2 actIE2 VELACI Y 2 DEPTH2 K1 2 K1 2 K2 2 K2 2 EN 2 EN 2 ICNR 2 KNR 2
2 mile 2 ft/mi2 fps 2 ft 2design2 @20- 2desi gn2 @20- 2dQsi gn2 @20- 2design2 @20- 2
2 2 2 2 2 2 2 2 2 2 2 2 2
Segment 1 2 0.102105.002 0.124 2 0.23 2 0.78 2 0.68 225.03 2 23.452 0.00 2 0.00 2 0.00 2 0.00 2
Reach 1 2 2 2 2 2 2 2 2 2 2 2 2 2
2 2 2 2 2 2 2 2 2 2 2 2 2
Segment 1 2 1.002 8.002 0.232 2 1.09 2 0.45 2 0.39 2 3.56 2 3.332 0.00 2 0.00 2 0.00 2 0.00 2
R adh 2 2 2 2 2 2 2 2 2 2 2 2 2 2
2 Flow 2 CBOD 2 NBOD 2 D.O. 2
2 cfs 2 mg/1 2 mg/1 2 mg/1 2
Segment 1 Reach 1
Waste 2 0.019 2110.000 2 0.000 2 0.000
Headwaters2 0.075 2 2.000 2 0.000 2 7.800
Tributary 2 0.000 2 0.000 2 0.000 2 0.000
* Runoff 2 0.000 2 0.000 2 0.000 2 0.000
Segment 1 Reach 2
Waste 2 0.000 2 0.000 2 0.000 2 0.000
Tributary 2 4.000 2 2.000 2 0.000 2 7.800
* Runoff 2 0.100 2 2.000 2 0.000 2 7.800
* Runoff flow is in cfs/mile

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