NC0020354_Wasteload Allocation_19860616

NPDES DOCUMENT SCANNING COVER SHEET
NC0020354
Pittsboro WWTP
NPDES Permit:
Document Type:
Permit Issuance
(!!te1oad
Allocation ''
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Approval
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
June 16, 1986
This document is printed on reuse paper - ignore any
content on the reirerse side

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�r NPDESS WASTE LOAD ALLOCATION
Facility Name: 1 bWr1 a-C � 1 T L or -a
Engineer
Date Rec.
.yts/ et,
Date 3 .-1 7 ' 8 4
,49493
Existing /+ �(,�
Proposed 0 Permit No.: AIC. OU Z o 3 5 (If
Pipe No.: ob 1 County: (1 1. f�t4 v%
Design Capacity (MGD): C" 25 Industrial (% of Flow): 0
Receiving Stream: Jk o b Q s av, e„ -Q _.k
Domestic (% of Flow):
Class: Q ` NS0 Sub -Basin:
63-0G — by
Reference USGS Quad: F ZZ- n% W (Please attach) Requestor: /-454. C .{I! Regional Office A R O
I.415rQ -
(Guideline limitations, if applicable, are to be listed on the back of this form.)
Design Zbmp.: c;,'j
7Q10 (cfs) C
Drainage Area (mil) : 1 o,'-}a
Winter 7Q10 (cfs) Q- CA
Location of D.O. minimum (miles below outfall):
Velocity (fps) :
o, l
6Dzo
Kl (base e, per day):
Avg. Streamflow (cfs) :
30Q2 (cfs)
Slope (fpm) I )
to.LG9
K2 (base e. per ay):
07,
Effluent
Characteristics
Monthly
Average
Comments
.BDS.)..
8 P-' ls2.
OAawn-ck,
,
Inky,-/
W , ( /Q
-0t7
(o /-Q
5
3 O 1 /P
Fek_a\ C A rrv,
) o00�t o,.12
Comments:
S-851
Effluent
Characteristics
:"tenthly
)-verage
Comments
I t-c
U.) 0-,--tvL.,
k)"'k -1 --A.)
iy/-:e
.bU
b ri %Q
T 5S
3 0 W6 /0
,
Fexa ( C4:korr-1
1000 A004-Q
Q 4
cD_9 5Lk.
Reviewed By:
r 0 z,...7,7,,,,.. ez7.-.1v:-__-,T.7.....3 F.7,--it7.: ,..7..„,,
11, v.) .....1 ,,A,.., r. v,
I/4
Date: ( ,

' Request No. : 2993
WASTELOAD ALLOCATION APPROVAL FOAM
Facility Name
Type of Waste
Status
Receiving -Stream
Stream Class
Subbasin
County
Regional Office
Qequemtor
Date of Request
Quad
PITTSBOAO WWTP
DOM
EXISTING
POBEASON CREEK
C-NSW
03O6O4
CHATHAM
PALE ICH
CAEECH
: E22HW
A&A1_K �YD
|UN
�wv
!^'/ :; "'; i :. .:
Drainage Area (sq mi) 10,42
7Q10 (cfs) O
Winter 7Q10 (cfs) � 09
30q2 (cfs)
Average Flow (cfs) 10 69
-........ ................ ............ .................... ........ ... ........ ----- RECOMMENDED EFFLUENT LIMITS ---------------
Wasteflow (mgd)
5-Dag BOD (mg/1)
Ammonia Nitrogen (mQ/l} �
Dissolved Oxygen (mg/1) �
TSS (mg/1) �
Fecal Co1iform (0/100ml):
pH (SU) �
SUMMER WINTER
.25 425
B 16
A 8
6 6
30 3O
1000 1000
6-9 6-9
............ .... ........ ............ ............................ ............................ .... .... ----- COMMENTS,j -----
/
Recommended by
Reviewed by:
Tech. Support Superviso[
Regional Supervis�
Permits & Engineering_
jUN 16 1986
P[RyNiTS & ENG!NFERI N G
Date
Date__
60,011
Da�e
Date__�������

o Wu) P
C w= 0.25 mcD
ZA- 10,42.
)A= t0.41
Os - -o
-40 co,,,'
bz . oQn o;i-SooL
O A =ll.} cQaA= v2. o
a4&Los= 'scow=
-rP
*_oz, og41. 2goo `45‘
�y.its' a:LA cf.4
- Los = a - n -o
DA = 16.23
is ^ -VD rib
Dios
�s*.
0� = 16•IS
�A= 14,q
'Veto, =
a32c.� = 0.1
D.z
v.T
Kati, bc141. v.C. o '136.
DA=3,a3 CQA^ 3,
43:,c0s = vcq;= o
pp_X+D•Ov
1.4

rw t, l
cQw u (t'iG i U ZS
t6
l05-12._0 O D D
7..011_0 t.,,, -RC 0,0 t 0
(DA - -v 1,1 °1 0,4
tr,•,,b QI,k _ 0 0
\J,AD1O w - !U v
-tom & A - 4.4 '3
334 3111 i s 3 1c0 , v
t l I , $ -.
a-a
3 t- C = l 5 �? "412/4020
c• G y--�-
t.t
C9„-2J iZ-1t7,c,“ 1.t1
tlI
Z crJ3-2 0 - 0 _
cJ�„ lZo
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o
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t.g
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`U. 2 M=-

. .
'D%SCHAAQEA P%TTSBOAO WWTP
AECEIV%NG AOBEASON CREEK
,
THE END D.O. IS 6.4a MC/I...
-----'------~------------~-
THE END CBOD IS 9.68 MQ/L
~~--------------------~----
THE END NBOD IS 0.MG/L
THE D.O. MIN. OF SEQMENT 1 IS �.14 M��L
THIS MINIMUM IS LOC*"ATEI:) AT SEGM�NT MILEPOINT 0.70
WHICH IS LOCATED IN REACH NUMBEA 1
TH[: WLA FOA SECMENT 1 AEA�N
THE WLA FOA SE�MENT 1 AEA0�
THE AE6lUIAED EFFLUENT D.O. %S
THE WASTEFLOW ENTEA%NQ SEQ 1
THE WLA FOR SEGMENT J. AE�CH
THS[ WLA FOA SEC]MENT 1 AEACH
THE AES�UIRED �FFLUENT D.O. %S
THE WASTEFLOW ENTEA%NQ S�Q 1
THE WLA FOR SEGMENT J. AEAOH
THE WLA FOA SE('JMI:.:NT J. REACH
THE AEQUIRED EPFLUENT D.O. IS
THE WASTE -ER LOW ENTERING' 5EGp 1
1 %S 2-11
J. IS 0
6 MCIP/L
PEACIA J.
8 I5 0
�.1 IS 0
0 MCl/I...
REACH a
MQ/L OF CBOD
MG/I... C>F NBC)D
I '25 MQD
MQ/L OF CB01)
MG/L OF NBOD
I 0 MQD
MG/L. OF CBOD
MQ/L OF NBOD
%S 0 m QD

*** MODEL 9IJMMAIwY DATA ***
.
• Discharger
I: c e].v:1nc; Stream
7C1:10
Design Temperature
e
I :1:T'T'SI:::C)PC) WWTr:'
I::C)F:E I": a(7N (iRI:.:EI<
0
25 °C
. r.t I:3 I:) t:3. s :i. r7
Stream Class:
:
W:i.nt.r•;.r 7(4:I.0 :
3002
ILENGTHISLOPE I VELOCITY (DEPTH I K1 : K1 : K2 I K2 I KN 1 KN I KNR 1 KNR :
I pile Ift/mi I fps I ft I /day 1 020° I /day 1820° 1 /day 1820° : /day 1820° I
Segment 1 I 1.10: 15.001 0.100 10.51 10.51 10.41 13.01 I 2.701 0.00 : 0.00 10.00 10.00 I
Reach 1 I
5egeent 1 I 0.20: 15.00: 0.100 10.51 10.51 10.41 13.01 ► 2.701 0.00 : 0.00 10.00 10.00 I
Reach 2 I
5egeent 1 I 1.601 15.001 0.100 10.51 10.51 : 0.41 13.01 1 2.701 0.00 : 0.00 : 0.00 10.00 :
Reach 3
*** INPUT DATA 5IJMMAPY ***
1 Flow I CBOD 1 NBOD 1 D.O. I
I cfs I og/1 : mg/1 1 sgll I
5egeent 1 Reach 1 I
Waste I
Headwaters:
Tributary :
* Runoff 1
0.387 1 24.000 1 0.000 I 6.000 I
0.000 1 0.000 I 0.000 I 0.000 I
0.000 1 0.000 1 0.000 I 0.000 I
0.000 : 0.000 I 0.000 I 0.000 I
Segeent 1 Reach 2 I
Waste I 0.000 I 0.000 I 0.000 : 0.000 I
Tributary 1 0.000 I 0.000 I 0.000 I 0.000 I
* Runoff 1 0.000 I 0.000 1 0.000 I 0.000 I
Segment 1 Reach 3 I
Waste I 0.000 I 0.000 1 0.000 I 0.000 I
Tributary I 0.000 1 0.000 I 0.000 1 0.000 I
* Runoff I 0.000 I 0.000 I 0.000 I 0.000 :
* Runoff flow is in cfslmile
030604
C-NSW
.09

DISCHAPC" EJ P%TTSBOAO WWTP
AEC�:::,[V%NQ ST[IZAM RC)BEAS0N �AEEK
^
THE EMD D.O. I5 6.2 S MQ/L
THE.: END CBOD IS 2.1.09 MC."P/L
THC.: END NBOD %S 0'0 0 MQ/L
---~--------~-----------~-----~----~-~~---------------------------~---
THE D.D. M%N. OF SI:.:QMENT J. %S 5.08 MQ/L.
THIS MINIMUM IS LOCATED AT SEOMENT M%LEPOINT 1.00
WHI�H %S LOC��T�D IN AEAUH NUMBEA 1
THU WLA FOP! SEGMENT 1 AEACH
THE WLA FOQ S1*_!:QMENT J. PEACH
THE AEQUIAED EFFLUENT D.O. IS
THE WASTEFLOW ENTEA%NG� SEX." 1
THE WLA FOP, SEQMENT 1 PIE ACH
THE WLA FOP SE�MENT 1 AEACH
THE AEQU%RED D.O. IG
THE ENTEAINQ SEQ 1
THE WLA FOA GEQMENT J. AEACH
THE: WLA FOP, SEQMENT J. AEA. CH
THE AEgN117.12D D.O. IS
THE WASTEFLOW ENTEA%NQ 5EQ 1
1 %S 56 M(*�/L �� C�BOD
1 115 0 MG)/L. OF MBOD
6 MG/L
PEACH J. IS .25 MQD
2 IS 0
2 IS 0
0 MQ/L
8 IS 0
8 IS 0
0 M�/L
MQ/L OF CBOD
MG/L. OF NBOD
IS 0 11GD
MG/I... OF C1:30D
M[;/L OF NBOD
%5 0 MQD

t AP
*** MOI:)E1... SUMMARY :DATA ***
•
' Discharger I::1:1: TT S 1:::(D f:.(:) W W'T' I: !:i u b I:y a <.:s :i. ri 0::3 0 6 0 1
Receiving Stream :OBE ftiSON CREEK Stream Class: C....Nr;W
71410 0 Winter 'T (410 : .09
Design Temperature :1.6 °C ::30()2
:LENGTHISLOPE 1 VELOCITY :DEPTH : Ki 1 K1 : K2 : K2 1 KN 1 KN 1 KNR 1 KNR
1 nile Ift/ai : fps 1 ft I /day 1 820° 1 /day 1820° 1 /day : 020° 1 !day 1 020° 1
Segoent 1 1 1.101 15.001 0.100 : 0.57 : 0.33 1 0.40 1 2.47 1 2.70: 0.00 1 0.00 : 0.00 1 0.00 :
Reach 1 :
Segment 1 I 0.201 15.001 0.100 : 0.57 1 0.33 1 0.40 : 2.47 1 2.701 0.00 1 0.00 1 0.00 : 0.00 1
Reach 2 1
Segoent 1 1 1.60: 15.001 0.100 1 0.58 10.33 : 0.40 1 2.47 1 2.701 0.00 1 0.00 1 0.00 : 0.00 :
Reach 3 1
)K** INPUT DATA SUMMARY ***
Flow ) CBOD 1 NBOD 1 D.O. 1
cfs : ogll 1 og/1 1 ogll
5egeent 1 Reach 1 1
Waste 1 0.387 : 56.000 : 0.000 : 6.000 1
Headwaters) 0.090 1 2.000 1 0.000 1 9.000 1
Tributary 1 0.000 1 0.000 1 0.000 1 0.000 1
$ Runoff 1 0.010 1 2.000 1 0.000 : 9.000 1
Segoent 1 Reach 2
Waste 1 0.000 1 0.000 1 0.000 1 0.000 :
Tributary 1 0.000 : 0.000 1 0.000 1 0.000 1
* Runoff 1 0.000 1 0.000 1 0.000 1 0.000 1
Segoent 1 Reach 3 1
Waste ) 0.000 1 0.000 : 0.000 1 0.000 1
Tributary 1 0.000 1 0.000 1 0.000 1 0.000 :
* Runoff 1 0.010 1 2.000 1 0.000 1 9.000 1
* Runoff flow is in cfsleile