NC0025526_Wasteload Allocation_19870808

NPDES DOCUHENT SCANNING COVER SHEET
NPDES Permit:
NC0025526
Walnut Cove WWTP
Document Type:
Permit Issuance
'"
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Staff Report
Speculative Limits
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
August 8, 1987
This document is printed on reuse paper - 1g:izore any
content on the rezrerse side

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO° 2. Co
FACILITY NAME- Too* of vJAkLNu? CoVC Uk)uJ f
Facility Status: EXISTING PROPOSED
(circle one)
Permit Status( RENEWAL MODIFICATION UNPERMITTED NEW
(circle one)y�/
Major Minor
Pipe No -
Design Capacity (MGD)• C' i ci 2
Domestic (% of Flow)- I ()CD
Industrial (% of Flow):
Comments -
RECEIVING STREAM: -Tow A Fray, C REE IC
Class•
Sub -Basin•
C)� -c,z - O(
Reference USGS Quad• ' ! B 5 W (please attach)
County: cT()K F '-
Regional Office: As Fa Mo Ita Wa Wi
(circle one)
Requested By: A MUE\_ 'tz'. F= ifs ;t
Prepared By -
Reviewed B
Date- � (7 7
Date- g l
Date:
Modeler
Date Rec.
#
3 � �
'5-41/17
Ile 7i
2 1�7,9i(o I
Drainage Area (mi) Avg. Streamflow (cfs)-
7Q10 (cfs) i -u Winter 7Q10 (cfs) 2(' u 30Q2 (cfs)
Toxicity Limits: IWC % (circle one) Acute / Chronic
Instream Monitoring:
Parameters
Upstream Location
Downstream Location
Effluent
Characteristics
Summer
Winter
BOD5 (mg/I)
30
N1-13 N (mg/1)
--
D.O. (mg/1)
-
TSS (mg/1)
90
F. Col. (/100m1)
k Oc-;O
pH (SU)
La _ ci
PLOTTED
_____.
Comments- ft IYri{QU ti MARIA

~
Request No. :4018
Permit Number
Facility Name
Type of Waste
Status
Receiving Stream
Stream Class
Suhbasin
County
Regional Office
Qequestor
Date of Request
Quad
Wasteflow
5-Dag BOD
Ammonia Nitrogen
Oxygen
Dissolved
TS5
Fecal Coliform
pH
Upstream (YIN): N
Downstream (YIN): N
NCOO25526
WALNUT COVE WWTP
DOM
EXISTIN�
TOWN FORK CREEK
C
030201.
STOKES
WINSTON-SALEM
BRIDGES
5/29/87
BI8SW
Drainage Area
Average Flow
Summer 7Q10
Winter 7Q10
9OQ2
RECOMMENDED EFFLUENT LIMITS
Location:
Location:
LIMITS REMAIN UNCHANGED.
Recommended bv
Reviewed by:
Tech. Support Supervisor
AWAY Regional Supervisor
Permits & Engineering
RETURN TO
MONITORING
COMMENTS
TECHNICAL
SERVICES BY
(sq mi)
(cfs)
(cfs)
(cfs)
(cfs)
RECEIVED
N.C. Dept. NRCD
AUG 7 {887
­/vioion./
Environmental Management
Winstpn.Salern Reg. Office

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SUMMER
WALNUT COVE AND WALNUT TREE
• SUB. COMBINED AND PROTECTED
---------- MODEL RESULTS ----------
Discharger : WALNUT COVE WWTP
Receiving Stream : TOWN FOPIK CREEK
The End D.O. is 6.96 mg/i.
The End CBOD is 2.59 mg/i.
The End NBOD is 2.A8 mg/l.
DO Min
(mg/1) Milepoint Peach 0
- - - -
Segment :1. 7.07 0.26 1
Peach 1
Segment 2 6.05 0.10 :1.
Peach 1
Segment 3 6.8A 1.60 :1.
Peach 1
WLt WI...A WLA
CBOD NBOD DO Waste Flow
(mg/1) (mg/1) (mg/I) (mgd)
---- ........
A5.00 90.00 0.00 0.19200
45.00 90.00 0.00 0.05000
0.00 0.00 0.00 0.00000

*** MODEL SUMMARY DATA A ***
Discharger
Receiving Stream
Summer 7(1:L0
WALNUT CLOVE WWTP
TOWN FORK CREEK
EEl<
C3 .
Design Temperature: 25.
Su1:)ID(:3.s:i. n : 030201
Stream Class: (:
Winter 7Q:1.() . 21.
(LENGTH: SLOPE: VELOCITY 1 DEPTH: Kd 1 Kd 1 Ka 1 Ka 1 KN 1 KN 1 KNR 1 KNR 1
1 mile 1 ftlmil fps 1 ft (design: 020° :design) 820° :design: 820° :design! 820° 1
Segment 1 1 0.271 4.401 0.168 1 1.82 1 0.27 1 0.21 1 1.48 1 1.331 0.44 1 0.30 1 0.44 1 0.00 1
Reach 1 1
Segment 2 1 0.101 13.201 0.105 1 0.83 1 0.29 1 0.23 1 2.78 1 2.501 0.44 1 0.30 1 0.44 1 0.00 1
Reach 1 1
Segment 3 1 3.501 4.401 0.181 1 1.90 1 0.27 1 0.21 1 1.60 1 1.431 0.44 1 0.30 1 0.44 1 0.00 1
Reach 1 1
Segment
Waste
Headwaters:
Tributary 1
* Runoff 1
1 Flow C:BOla
1 cfs mg/1
1 Peach 1
1 0. 298 1 45.000
8.000 1 2.000
O .000 1 2.000
O .000 1 2.000
Segment, 2 Reach 1
Waste
Headwaters:
Tributary 1
* Runoff 1
O .078 1
:1..000 1
O .000 1
O .000 1
Segment 3 Peach h 1.
Waste 1 0.000 1
Headwaters: 0.000 1
Tributary 1
* Runoff 1
O .000 1
O .260 1
45.000 1
2.000 1
2.000 1
2.000 1
N00::) 1 D.O.
mg/:I. mg/:1.
90.000
.1..000
:1..000
1.000
0.000
'7.440
7.4210
7.440
90.000 1 0.000
1.000 1 7.440
1.000 1 7.440
1.000 1 7.440
0.000 1 0.000 1 0.000
2.000 1 1.000 1 7.440
2. 000 1 1.000 1 7.440
2.000 1 1.000 1 7.440
* Runoff flow is in cfs/mile

SUMMEP
'..- ..., r WALNUT COVE AND WALNUT TPEE
. .
SUB. COMBINED AND PPOTECTED
Seg 0 1 Peach 0 1 Seg Mi 1 D.O. (:DOD 1 NBOD Flow 1
1. J. 0.00 7.17 3.514 4.19 8.30
:1. 1 0.02 7.16 3.54 4.18 8.30
1 J. 0.04 7. :1.6 3.53 A.17 8.30
1 :1. 0.06 '7. :1.5 3.52 4. :1.5 8.30
1 J. 0.08 7.14 3.51 4.14 8.30
1 1 0.10 7.13 3.51 4.13 8.30
1 1. 0.12 7.12 2.50 4.11 8.30
1 1 0.14 7.12 3.49 4.10 8.30
J. J. 0.16 7.11 3.49 4.09 8.30
1. J. 0.1.8 '7.1.0 3.48 A .0'7 8.30
J. J. 0.20 7.09 3.47 4.06 8.30
1 1 0.22 7.09 3.47 4.05 8.30
1 1 0.24 7.08 3.46 4.03 8.30
1 1 0.26 7.07 3.45 4.02 8.30
2 1 0.00 6.90 5.09 7.40 1.08
2
1 0.01 6.90 5.08 7.38 1.08
2 J. 0.02 6.89 5.08 7.36 1.08
2
1. 0.03 6.89 5.07 7.34 1.08
2 J. 0.04 6.88 5.06 7.33 1.08
•11,'7.31 r... :1. 0.05 6.88 5.05 1.08
2 1. 0.06 6.87 5.04 7.29 1.08
2 :1. 0.07 6.87 5.03 7.27 1.08
cJ0.08 6.86 5.02 7.25 1.08
2 J. 0.09 6.86 5.01 7.23 1.08
2 1 0.10 6.85 5.01 7.21 1.08
3 1 0.00 7.05 3.63 4.39 9.38
3 3. 0.20 6.99 3.56 4.24 9.43
3 1. 0.40 6.94 3.49 4.10 9.48
a 3. 0.60 6.91 3.41 3.96 9.53
3 1 0.80 6.88 3.35 3.83 9.50
3 1 1.00 6.86 3.28 3.70 9.64
3 *I 1.20 6.85 3.21 3.58 9.69
3 1. 1.40 6.84 3.15 3.46 9.74
a 1 1.60 6.84 3.09 3.35 9.79
3 J. 1.80 6.84 3.03 8.24 9.84
3 1. 2.00 6.85 2.97 3.13 9.90
3 1 2.20 6.86 2.91 3.09 9.95
3 1. 2.40 6.87 2.85 2.93 10.00
3 1 2.60 6.89 2.79 2.83 10.05
a 1 2.80 6.90 2.74 2.74 10.10
3 1 3.00 6.92 2.69 2.65 10.16
a 3. 3.20 6.94 2.64 2.57 10.21
3 1. 3.40 6.96 2.59 2.48 10.26
Seg 0 1 Peach 8 1 Seg M. D.O. CBOD NBOD Flow 1