NC0047597_Wasteload Allocation_19881123

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: Ncoo 1-1597
FACILITY NAME- 'f-Ey 0 Z/14"%ta.-A. Yr:.� f orl I?c�. btlWrr'
Facility Status: Emma
(circle one) - -
Permit Status: RENEWAL. `MODIFICATION) UNPERMTED NEW
(circle one) —
MajorPipe
r-
Pipe No- 001
Design Capacity (MGD):
Domestic (% of Flow):
Industrial (% of Flow):
,�, .301(,4) few
Continents:
aid
ell ti, c44 a n ieiti
I4,0
9h
/0
RECEIVING STREAM- / ew fire CveQ k
Class:
C - /I%k i r: e., f .5ei
Sub -Basin: d 3 - 06 - 05
Reference USGS Quad: / d 3 NUV (please attach)
County
Wi WS
Regional Office: As Fa Mo
(clrele ewe)
Requested By:
Prepared By: . S _ . Date: IIkI/ 88
Reviewed By:
Date:
Date: I i ? c-y%
Drainage Area (mil)
Modeler
Date Rec.
* .
j D, /
1
10 ; �,c1 i fir,
i-! ci_ -,:: i,
5.00 Avg. Streamflow (cfs)- 77
7Q10 (cfs) °` i5 Winter 7Q10 (cfs) '� 30Q2 (cfs) 3-GO
Toxicity Limits: IWC % (circle one) Acute / Chron'�
Instream Monitoring:
Parameters
Upstream Location
Downstream Location
-rhe5e +0 adct rag Part- 3014(.() of +h{ if/Ca')
Wakc Ac+. llu Per^-,;+ st4ou (d be. reopened +o fill.-coitokh'ns
Qara 4,, -}-kc -�ac<<,�'y's c - rr 4+ AI PDES l.-�.Ia)hr'CAS. J
Effluent
Characteristics
NPD+ 5 Lim,+a+,045
R63s4trtA, A- elak i L,cw1
Dz.tecI«n Lr'rvi;fig
Ladr1tuon e-9I- 1 l
2.
2.
Lhcamsium (III)
50
25
Coh er ( j/Q)
Mon;4or
10
1_P(Ac (-^0)
25
10
Nickel (tA?P)
50
10
CYuii", cue (Y icj/ )
5
10
M
t4
J f,>
Commen • ThcSe 1:^�1is arc
ekis-k o-ft-cr aspecfs +kt IJPDE.S f -rrw4 -
nhou can 1e-A..
;v1 #DDrrio/J lb I &.

RECENED
NOV 18 1988
Request No�i�19( iLERING
WASTELOAD ALLOCATION APPROVAL FOI2M
Facility Name: CITY OF DURHAM - FARRINGTON ROAD WWTP
NPDES No.: NC0047597
Type of Waste: 90% DOMESTIC, 10Y. INDUSTRIAL
Status: REOPENER OF EXISTING
Receiving Stream: NEW HOPE CREEK
Classification: C-NSW
Subbasin: 030605 Drainage area: 75.000 sq mi
County: DURHAM Summer 7Q10: 0.15 cfs
Regional Office: RALEIGH Winter 7Q10: 2.00 cfs
Requestor: LULA HARRIS Average flow: 77.00 cfs
Date of Request: 10/19/88 3002: 3.60 cfs
Quad: D23NW
RECOMMENDED EFFLUENT LIMITS
Required
Additional Analytical
NPDES Detection
Limits Limits
Cadmium (ug/1): 2 2
Chromium (ug/1): 50 25
Copper (ug/1): Monitor 10
Lead (ug/1): 25 10
Nickel (ug/1): 50 10
Zinc (ug/1): Monitor 10
Cyanide (mg/1): 5 10
Upstream (Y/N):
Downstream (Y/N):
MONITORING
Location:
Location:
COMMENTS
NOV I
RALEIGH REGIONAL OFFICE
The above limits are to address Part 304(1) of the Clean Water Act.
The permit should be reopened to add the above parameters to the
facility's current NPDES limitations.
THESE LIMITS ARE IN ADDITION TO THE EXISTING LIMITS. NO OTHER ASPECT
OF THE �� Y(.tNPDESSPERMIT SHOULD BE C ANGED. 'w s GGyy%�� se /-N� ;
s, ( ? ) /Place i✓ � .s' -4 Cct' ru , 1�A&1 ?{'C(' C' y /2!/d LIB
Recommended by:
Reviewed by
Tech Support Supervisor:
(Regional Supervisor:
Permits & Engineering:
Add a 5604
Date:
Date: _ ()/10/411
Date: //
Date: fiZlli
RETURN TO TECHNICAL SERVICES BY:
fEC .-4--198 ---

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t
Pollutant
Cadmium
Chromium
Copper
Nickel
Lead
Zinc
Cyanide
Mercury
Silver
Cadmium
Chromium
Copper
Nickel
Lead
Zinc
Cyanide
Mercury
Silver
PRETREATMENT HEADWORKS REVIEW
Discharger:
Receiving stream:
Stream Class:
USGS Zone:
7Q10:
Design flow:
Actual flow:
Percent industrial:
IWC:
CITY OF DURHAM - FARRINGTON RD.
NEW HOPE CREEK
C-NSW
2
0.150 cfs
10.000 mgd
7.1278 mgd
10.0
99.0
Actual
Allowable Domestic
Standard/AL Removal Load (a) Load
(mg/1) Eff. (lbs/day) (lbs/day)
0.002 S
0.05 S
0.015 AL
0.05 S
0.025 S
0.05 AL
0.005 S
0.0002 S
0.01 AL
Total
Influent
Load
(lbs/day)
0.29
3.23
3.98
1.45
3.36
12.65
3.15
0.02
0.31
92%. 1.51 0.180
76% 12.56 3.080
82%. 5.02 3.760
32% 4.43 1.290
81'/. 7.93 3.080
77% 13.11 10.790
59% 0.74 2.530
86% 0.09 0.020
94% 10.05 0.310
USGS Predicted
Background Effluent
Reserve Conc Conc (b)
(lbs/day) (mg/1) (mg/1)
1.22 0.0004 >
9.33 0.012 0.0130 >
1.04 0.004 0.0120 >
2.98 0.0166 >
4.57 0.006 0.0107 >
0.46 0.007 0.0489 >
-2.41 0.0217 >
0.07 0.0004 0.0000 >
9.74 0.0003
11/07/88
Actual
Industrial
Load
(lbs/day)
0.110
0.150
0.220
0.160
0.280
1.860
0.620
0.000
0.000
Allowable
Effluent
Conc (c)
(mg/1)
0.0020
0.0504
0.0151
0.0505
0.0252
0.0504
0.0050
0.0002
0.0101