NC0025071_Wasteload Allocation_19901003

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO025071
PERMITTEE NAME: City of Eden / Mebane Bride
Facility Status: Existing
Permit Status: Modification
Major q Minor _
Pipe No.: 001
Design Capacity: 13.5* MGD
Domestic (% of Flow):
Industrial (% of Flow):
Comments:
* Expans
*# Rnccfl
72** %
28** %
STREAM INDEX: 22-091
RECEIVING STREAM: Dan River
Class: C
Sub -Basin: 03-02-03
e Wastewater'T
Reference USGS Quad: B20NW, SE Eden (please attach)
County: Rockingham
Regional Office: Winston-Salem Regional Office
Previous Exp. Date: 2/28/92 Treatment Plant Class: IV
Classification changes within three miles:
None within 3 miles.
Requested by: Jule
Prepared by:4/3-
Reviewed by:
WA
Date: 8/15/90
Date: 2 qD
Date: a C>0
Modeler
Date Rec.
I#
3G
0 to
9 a
58 l"1
Drainage Area (mi ) \-1 O n Avg. Streamflow (cfs): 6 2 p
7Q10 (cfs) 31 7> Winter 7Q10 (cfs) $7'g 30Q2 (cfs) % 0
Toxicity Limits: IWC 6 % Acute hrnnic
Instream Monitoring:
I)o /Coed
Upstream 0ars. Location
Downstream S Location Sn
W tx
i'i FicallCs 1 ' - - .
Effluent
Characteristics
Summer
Winter
BOD5 (m )
30
3 O
NH3-N (mg/l)
2.-1
�'Yl"z' ':aDA
30
TSS (mg/1)
3 O
3
F. Col. (/100 ml)
1 O o
L b p
pH (SU)
6 _ CI
T&C i •<. (1L)
2$
2 8
a C fQ
0 IQI
0,(q I
&,\
LQq�(ulP
2aq
3R9
IwAA
Le vvto )�Pa
rAemt

LOIoY �lOv��{PYIVtt' SACAMt4 S OH 1
J'
\"A A W c B
Rkv-Q, 0.1 C S 2 1-1 6 l (4aAA J- c 1I
-�-�w�.� s � � �- l`i , �L a,,,� �( 3�y o�) • S -� a�...� a cn�� S d^^e

RECEIVED
N.C. (kept. NRCO
SEP 18 1990
Winston-Salem Request No.:
----------- WASTELOAD ALLOC %fte
fiWAL FORM ----
Facility Name:
City of E
ane Bridge
NPDES No.:
NCO025071
Type of Waste:
72% Dom/28% Ind
Status:
Existing/Expansion
Receiving Stream:
Dan River
Classification:
C
Subbasin:
:93e 92 03OL03
Drainage
area:
County:
Rockingham
Summer
7Q10:
Regional Office:
Winston-Salem
Winter
7Q10:
Requestor:
Shanklin
Average
flow:
Date of Request:
081690
30Q2:
Quad:
B 20 NW
5817
Q� sq mi
313OS8; :;icfR+Nr.
578.00 cfs
1620 cfs
704.00 cfs
-------------------- RECOMMENDED EFFLUENT LIMITS ------------------
EXISTING
PROPOSED
PROPOSED
SUMMER
WINTER
Wasteflow (mgd):
7.00
13.50
13.50
BOD5 (mg/1):
30
30
30
NH3N (mg/1):
12.7
DO (mg/1):
TSS (mg/1):
30
30
30
Fecal coliform (#/100ml):
200
200
200
PH (su):
6-9
6-9
6-9
Color (ADMI):
540
300
300
TRC (ug/1):
28
28
Toxicity Testing Req.: Chronic Chronic / Ceriod / QRTRLY @ 6 %
3.4 %
Mercury (ug/1): Monit. 0.191 0.191
Cyanide (ug/1): Monit. 78 78
Lead (ug/1): Monit. 399 399
Effluent monitoring: Cu, Ni, Cd, Cr, Cu, Ni, Zn,
Zn, Ag & Cr and Ag (year-round)
---------------------------- MONITORING ---------------------------------
Upstream (Y/N) : Y Location- At N SR f�1964 r 1 if_o(�
Downstream (Y/N) : Y Location: .S90 Ck r t� l4 W W -7 f ou `A
----------------------------- COMMENTS ----------------------------------
Color should be monitored instream in three sites: Site # 1; Smith R. @
Eden Water Supply intake; Site # 2; Dan River @ NC 87; and Site # 3; at
NCSR 1761 sample transect at 1/4, 1/2, & 3/4 distance across Dan River.
The following instream parameters should be monitored in the stream at
the above noted upstream/downstream monitoring sites: Temp, DO, cond, pH
t fatal noliform.
Prepared by:
Juan C. Mangles
Reviewed by
Instream Assessment:
Regional Supervisor:
Permits & Engineering:
RETURN TO TECHNICAL SUPPORT BY: OCT 11 1990
Date: W 7140
Date:
Date:
Date:

1.0/89
Facility Name CC C"n - �, cat tn.�1' t. C�
Permit #
0 c 0- 0 2 s0-�
CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity in any two consecutive toxicity tests,
using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September 1989) or subsequent versions.
The effluent concentrati(t
at which there may be no observable inhibition of reproduction or
significant mortality is % (defined as treatment two in the North Carolina procedure
document). The permit holder shall perform guarterjy monitoring using this procedure to establish
compliance with the permit condition. The firs t wi a pe rmed of er t arty days from
issuance of ihis permit during the mondid of o v . Effluent
sampling for this testing shall be performed at the N DE 'tt n effluent discharge below
all treatment processes.
All toxicity: testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DEM Form AT-1(original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental, Management
P.O. Box 27687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test -data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving stream, this
permit may be re -opened and modified to include alternate monitoring requirements or linuts.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
7Q10 3 ! -�
Perini ted Flaw.
IWC% b
Basin & Sub -basin
Receiving Wr a
County 1Cr
Recommended by:
Dat
"Chronic Toxicity (Ceriodaphnia) P/F at 6 %
Condition

VZ �
NC
NCR
N 64
cden-Me�,� 6ridc,�-
WWii'
MoKiA-t>n� Skr�-1:oY.5
0 ?MC. "A - IX) Cond., fecal CoG,�Vrw., Booms
❑ NC lgl,y -
p Wo! ar 5u fS j lvi�t - 5ml+t, L; ve4 - Co `oQ
C) l C. t`((p l - -Dan E ee �dOcw�Stec .`> - colm2 - s Fat ati.s m. iY�naee#
6A� G� siu c� rcvss YiJtr

9-7-90
JCM
City of Eden _ Mebane Bridge WWTP
Dan River
030203
- This facility is applying for an expansion from 7.0 MGD to 13.5 MGD.
- I developed a model B on 11/3/89 for this segment of the river. Please
refer to notes dated 8/24/88 and 10/25/89 in the WLA file for model inputs and
results.
- At that time I returned to P & E the WLA's for the expansion because P & E
forgot to request an EA or EIS for the expansion. I saved the model runs until the
EA and a FONSI were issued. Therefore, this WLA is based on the aforementioned
modeling analyses. No changes have occurred in the segment modeled since last time
it was modeled.
- The model for effluent flow = 13.5 MGD predicted that secondary limits can
be assigrOdto the permit. However, during summer low flow conditions a mass balance
(Please see Toxics review spreadsheet results) predicts that based on observed
effluent ammonia concentrations the instream criteria would be violated; therefore,
a further analysis was performed which indicated that the maximum observed concen-
tration is greater than 1/4 of the allowable concentration (i.e. observed = 18>670
ug/l and allowable a 12667.4 ug/1). According to current SOP a limit should be
assigned. During winter low flow conditions the same situation occurs. That is,
the maximum observed concentration (18,670 ug/1) of ammonia is greater than 1/4 of
the allowable concentration (45,519 ug/1). Thus a NH3-N limitation is necessary.
However, since the limitation would be 45.5 mg/1 and the facility consists of
secondary treatment (20 mg/1 of ammonia in the effluent) I will assign secondary
limits (no ammonia limitation cont fined in the permit) during the winter.
- A TRC limitation is assigri-aras per current SOP. Mass balance indicates that
a 271 ug/l of TRC would protect the AL,. A 28 ug/l TRC is assigned to protect for
the acute.
- Other toxic limitations and monitoring requirements are assign as per
current SOP which are reflected in the toxics review spreadsheet. A copy of the
tonics review analysis is attached. I used PIRF dated 2/2/90.
- Color limitation is from analysis performed by Mike Scoville. Notes of the
analysis are included in the WLA file.
- Color monitoring sites and other instream monitoring sites are maintained
from the previous WLA allocation performed by Betsy Jonhson when renewing the
permit on 2/13/90.

SUMMER
30/12.7
13.5
MGD
---------- MODEL
RESULTS ----------
Discharger
:
CITY OF EDEN
Receiving Stream :
DAN RIVER
----------------------------------------------------------------------
The End
D.O.
is 6.53
mg/l.
The End
CBOD
is 8.23
mg/l.
The End
----------------------------------------------------------------------
NBOD
is 3.63
mg/l.
WLA
WLA
WLA
DO Min
CBOD
NBOD
DO
Waste Flow
(mg/1)
------
Milepoint Reach
----------------
# (mg/1)
----
(mg/1)
----
(mg/1)
--
(mgd)
----------
Segment
1
6.53
7.85 8
Reach
1
60.00
57.15
0.00
13.50000
Reach
2
45.00
90.00
0.00
0.00300
Reach
3
141.00
0.00
0.00
5.20000
Reach
4
276.00
0.00
0.00
0.50000
Reach
5
0.00
0.00
0.00
0.00000
Reach
6
0.00
0.00
0.00
0.00000
Reach
7
45.00
90.00
0.00
0.50000
Reach
8
0.00
0.00
0.00
0.00000

*** MODEL SUMMARY DATA ***
Discharger :
Receiving Stream
Summer 7Q10
Design Temperature:
CITY OF EDEN Subbasin : 030203
DAN RIVER Stream Class: C
313.0 Winter 7Q10 : 578.0
25.0
ILENGTHI
SLOPEI
VELOCITY I
DEPTHI Kd I
Kd
I Ka I
Ka I
KN I
--------------------------------------------------------------------------------
I mile I
ft/mil
fps I
ft
Idesignl
@20;fi
Idesignl
@204 Idesignl
Segment
1
I I
1 1.401
I
2.301
I
0.929
1 4.90
I I
1 0.28 1
0.22
I I
1 2.10 1
I
1.881
I
0.44 1
Reach
--------------------------------------------------------------------------------
1
1 1
1
1
1 1
1 1
1
1
Segment
1
I I
1 0.701
I
2.301
0.930
I
1 4.90
I I
1 0.28 1
0.22
I I
1 2.10 1
I
1.881
I
0.44 1
Reach
--------------------------------------------------------------------------------
2
1 1
1
1
1 1
1 1
1
1
Segment
1
I I
1 0.301
I
2.301
0.947
I
1 4.91
I I
1 0.28 1
0.22
I I
1 2.14 1
I
1.921
I
0.44 1
Reach
--------------------------------------------------------------------------------
3
1 1
1
1
1 1
1 1
1
1
Segment
1
I I
1 0.101
I
2.301
0.948
I
1 4.92
I I
1 0.28 10.22
I I
1 2.14 1
I
1.921
I
0.44 1
Reach
--------------------------------------------------------------------------------
4
1 1
1
1
1 1
1 1
1
1
Segment
1
I I
1 0.801
I
2.301
0.949
I
1 4.93
I I
10.28 1
0.22
I I
1 2.14 1
I
1.921
I
0.44 1
Reach
----------=----------------------------------------------------------------------
5
1 1
1
1
1 1
1 1
1
1
Segment
1
I I
1 3.521
I
2.301
0.950
I
1 4.94
I I
1 0.28 1
0.22
I I
1 2.14 1
I
1.921
I
0.44 1
Reach
--------------------------------------------------------------------------------
6
1 1
1
1
1 1
1 1
1
1
Segment
1
I I
1 0.03I
I
2.301
0.952
I
1 4.94
I I
1 0.28 1
0.22
I I
1 2.15 1
I
1.931
I
0.44 1
Reach
--------------------------------------------------------------------------------
7
1 1
1
1
1 1
1 1
1
1
Segment
1
I I
1 1.101
I
2.301
0.952
I
1 4.97
I I
1 0.28 1
0.22
I I
1 2.15 I
I
1.931
I
0.44 1
Reach
--------------------------------------------------------------------------------
8
1 1
1
1
1 1
1 1
1
1
I Flow
I cfs
Segment 1
Reach 1
Waste
1 20.925
Headwaters1313.000
Tributary
1 0.000
* Runoff
1 0.420
I CBOD
I NBOD I
D.O. I
I mg/l
I mg/l I
mg/l I
160.000
1 57.150 1
0.000
i 2.000
1 1.000 1
7.440
I 0.000
I 0.000 I
7.440
I 2.000
I 1.000 I
7.440
Segment 1 Reach 2
Waste 1 0.005 1 45.000 1 90.000 1 0.000

r Tributary 1 0.000 1 0.000 I 0.000 1 7.440
* Runoff I 0.420 I 2.000 1 1.000 1 7.440
Segment 1 Reach 3
Waste 1 8.060 1141.000 1 0.000 1 0.000
Tributary I 0.000 I 0.000 1 0.000 I 7.440
* Runoff I 0.420 I 2.000 1 1.000 I 7.440
Segment 1 Reach 4
Waste 1 0.775 1276.000 1 0.000 1 0.000
Tributary I 0.000 I 0.000 1 0.000 I 0.000
* Runoff I 0.000 I 0.000 I 0.000 I 0.000
Segment 1 Reach 5
Waste 1 0.000 I 0.000 I 0.000 1 0.000
Tributary 1 0.900 I 2.000 I 1.000 I 7.440
* Runoff I 2.630 I 2.000 I 1.000 I 7.440
Segment 1 Reach 6
Waste I 0.000 I 0.000 i 0.000 I 0.000
Tributary I 0.200 I 2.000 I 1.000 I 7.440
* Runoff 1 0.230 I 2.000 1 1.000 I 7.440
Segment 1 Reach 7
Waste 1 0.775 145.000 190.000 I 0.000
Tributary I 0.000 I 0.000 1 0.000 I 0.000
* Runoff I 0.000 I 0.000 I 0.000 1 0.000
Segment 1 Reach 8
Waste I 0.000 I 0.000 I 0.000 I 0.000
Tributary I 4.200 I 2.000 I 1.000 1 7.440
* Runoff I 0.184 I 2.000 I 1.000 1 7.440
* Runoff flow is in cfs/mile

SUMMER
30/12.7
13.5 MGD
Seg #
Reach #
Seg Mi
D.O.
CBOD
NBOD (
Flow
1
1
0.00
6.97
5.63
4.52
333.93
1
1
0.10
6.97
5.62
4.51
333.97
1
1
0.20
6.96
5.61
4.49
334.01
1
1
0.30
6.96
5.60
4.48
334.05
1
1
0.40
6.95
5.59
4.46
334.09
1
1
0.50
6.95
5.58
4.45
334.13
1
1
0.60
6.94
5.57
4.44
334.18
1
1
0.70
6.94
5.56
4.42
334.22
1
1
0.80
6.93
5.55
4.41
334.26
1
1
0.90
6.93
5.54
4.40
334.30
1
1
1.00
6.93
5.53
4.39
334.34
1
1
1.10
6.92
5.52
4.37
334.39
1
1
1.20
6.92
5.51
4.36
334.43
1
1
1.30
6.91
5.50
4.35
334.47
1
1
1.40
6.91
5.49
4.33
334.51
1
2
1.40
6.91
5.49
4.33
334.52
1
2
1.50
6.91
5.48
4.32
334.56
1
2
1.60
6.90
5.47
4.31
334.60
1
2
1.70
6.90
5.46
4.30
334.64
1
2
1.80
6.89
5.45
4.28
334.69
1
2
1.90
6.89
5.44
4.27
334.73
1
2
2.00
6.89
5.43
4.26
334.77
1
2
2.10
6.88
5.42
4.24
334.81
1
3
2.10
6.72
8.60
4.14
342.87
1
3
2.20
6.72
8.59
4.13
342.91
1
3
2.30
6.71
8.57
4.12
342.96
1
3
2.40
6.71
8.55
4.11
343.00
1
4
2.40
6.69
9.16
4.10
343.77
1
4
2.50
6.68
9.14
4.09
343.77
1
5
2.50
6.69
9.12
4.08
344.67
1
5
2.60
6.68
9.10
4.07
344.94
1
5
2.70
6.68
9.08
4.05
345.20
1
5
2.80
6.67
9.06
4.04
345.46
1
5
2.90
6.67
9.04
4.02
345.72
1
5
3.00
6.66
9.02
4.01
345.99
1
5
3.10
6.66
8.99
4.00
346.25
1
5
3.20
6.65
8.97
3.98
346.51
1
5
3.30
6.65
8.95
3.97
346.78
1
6
3.28
6.65
8.95
3.97
346.98
1
6
3.38
6.64
8.93
3.96
347.00
1
6
3.48
6.64
8.91
3.94
347.02
1
6
3.58
6.63
8.90
3.93
347.05
1
6
3.68
6.63
8.88
3.92
347.07
1
6
3.78
6.63
8.87
3.91
347.09
1
6
3.88
6.62
8.85
3.90
347.11
1
6
3.98
6.62
8.83
3.89
347.14
1
6
4.08
6.61
8.82
3.88
347.16
1
6
4.18
6.61
8.80
3.87
347.18
1
6
4.28
6.61
8.79
3.85
347.21
1
6
4.38
6.60
8.77
3.84
347.23
1
6
4.48
6.60
8.75
3.83
347.25
1
6
4.58
6.60
8.74
3.82
347.28
1
6
4.68
6.59
8.72
3.81
347.30
1
6
4.78
6.59
8.71
3.80
347.32
1
6
4.88
6.59
8.69
3.79
347.34
1
6
4.98
6.58
8.67
3.78
347.37

It 1•�
6
5.08
6.58
8.66
3.77
347.39
1
6
5.18
6.58
8.64
3.76
347.41
1
6
5.28
6.57
8.63
3.75
347.44
1
6
5.38
6.57
8.61
3.73
347.46
1
6
5.48
6.57
8.60
3.72
347.48
1
6
5.58
6.57
8.58
3.71
347.51
1
6
5.68
6.56
8.56
3.70
347.53
1
6
5.78
6.56
8.55
3.69
347.55
1
6
5.88
6.56
8.53
3.68
347.57
1
6
5.98
6.56
8.52
3.67
347.60
1
6
6.08
6.56
8.50
3.66
347.62
1
6
6.18
6.55
8.49
3.65
347.64
1
6
6.28
6.55
8.47
3.64
347.67
1
6
6.38
6.55
8.46
3.63
347.69
1
6
6.48
6.55
8.44
3.62
347.71
1
6
6.58
6.55
8.42
3.61
347.74
1
6
6.68
6.55
8.41
3.60
347.76
1
6
6.78
6.55
8.39
3.59
347.78
1
7
6.75
6.53
8.48
3.78
348.56
1
8
6.75
6.54
8.40
3.75
352.76
1
8
6.85
6.54
8.38
3.74
352.78
1
8
6.95
6.54
8.37
3.72
352.79
1
8
7.05
6.54
8.35
3.71
352.81
1
8
7.15
6.54
8.34
3.70
352.83
1
8
7.25
6.53
8.32
3.69
352.85
1
8
7.35
6.53
8.31
3.68
352.87
1
8
7.45
6.53
8.29
3.67
352.89
1
8
7.55
6.53
8.28
3.66
352.90
1
8
7.65
6.53
8.26
3.65
352.92
1
8
7.75
6.53
8.25
3.64
352.94
1
8
7.85
6.53
8.23
3.63
352.96
Seg #
I Reach #
I Seg Mi I
D.O. I
CBOD I
NBOD I
Flow

09/Q3,/90 -
ver 3.1
T 0 X I C S R E V I E W
Facility:
EDEN-MEBANE
NPDES Permit No.:
NC0025071
Status (E, P, or M) :
M
Permitted Flow:
13.5
mgd
Actual Average Flow:
6.6
mgd
Subbasin:
030203
Receiving Stream:
Dan River
(---------PRETREATMENT DATA--------------I----EFLLUENT DATA---- I
Stream Classification:
C
I
ACTUAL
PERMITTEDI
1
7010:
313.0
cfs
I
Ind. +
Ind. + I
FREQUENCY I
IWC:
6.27
6
i
Domestic
PERMITTED
Domestic I
OBSERVED
of Chronicl
Stn'd / Bkq
I Removal
Domestic
Act.Ind.
Total
Industrial
Total I
Eflluent
Criteria 1
Pollutant
AL Conc.
I Eff.
Load
Load
Load
Load
Load I
Conc.
Violationsl
---------
--
(ug/1) (ug/1)
----------------
I
l--------
(#/d)
--------
(#/d)
--------
(#/d)
--------
(#/d)
---------
(#/d) I
(ug/1)
--------
(#vio/#sam)I
Cadmium
S
2.0
l 704
0.070
0.100
0.170
0.240
---- I
0.310 I
I
Chromium
S
50.0
l 754
0.140
0.140
0.280
7.380
7.520 I
( I
Copper
AL
7.0
l 40%
0.760
8.810
9.570
21.660
22.420 I
118.0
1/1 I N
Nickel
S
88.0
I 314
0.310
0.400
0.710
2.380
2.690 I
19.0
I P
Lead
S
25.0
l 808
0.970
0.970
1.940
1.750
2.720 I
86.0
I U
Zinc
AL
50:0
l 194
4.080
24.230
28.310
24.460
28.540 I
106.0
I T
Cyanide
S
5.0
l 584
0.800
0.130
0.930
I
8.0-)
I
Mercury
S
0.012
I 85%
0.010
0.0
0.020
I
1"
I S
Silver
AL
0.06
I 938
0.100
0.050
0.150
I
I E
Selenium
S
5.00
I 04,
I
I C
Arsenic
S
50.00
( Oi
I
1 T
Phenols
S
NA
I 0%
I
( I
NH3-N
C
11000.0 220.0
I 04
118,670.0
( O
T.R.Chlor.AL
17.0
l 04
I
I
I
3,940.0
I N
I
I
I---------------
I
I
ALLOWABLE
PRDCT'D
PRDCT'D
PRDCT'D
I
I I
---------MQNITOR/LIMIT--------- I--ADTN'L RECMMDTN'S--
I
l
Effluent
Effluent
Effluent
Instream
(
Reccmm'd
I
I
Conc.
using
using
Conc.
Based on
Based on
Based on I
FREQUENCY INSTREAM
I
l Allowable
CHRONIC
ACTUAL
PERMIT
using
ACTUAL
PERMITTED
OBSERVED I
Eff. Mon. Monitor.
I
Pollutant
l Load
Criteria
Influent
Influent
OBSERVED
Influent
Influent
Effluent I
based on Recomm'd ?
l
i (#/d)
(ug/1)
(ug/1)
(ug/1)
(ug/1)
--------
Loading
--------
Loading
--------
Data (
---------I
OBSERVED (YES/NO)
--------- -
l
I
---------
Cadmium
--
S
I ---------
I 11.62
--------
31.916
---------
0.923
- - -
1.683
0.00
Monitor
Monitor
l
I A
Chromium
S
I 348.52
797.909
1.267
34.032
0.00
Monitor
I
i N
Copper
AL
I 20.33
111.707
103.939
243.502
7.39
Monitor
Monitor
Monitor I
Monthly YES
I A
Nickel
S
I 222.24
1404.320
8.868
33.598
1.19
Monitor
Monitor (
NCAC NO
I L
Lead
S
( 217.82
398.955
7.023
9.847
5.39
Monitor
Monitor
Limit I
NCAC NO
l Y
Zinc
AL
l 107.57
797.909
415.088
418.461
6.
Monitor
Monitor
Monitor (
Monthly NO
I S
Cyanide
S
I 20.75
79.791
7.070
0.000
:50
Monitor
L t l
NCAC NO
I I
Mercury
S
I 0.14
0.191
0.054
0.000
0. 0
Limit
I
I S
Silver
AL
I 1.49
0.957
0.190
0.000
0.00
Monitor
I
1
Selenium
S
I 8.71
79.791
0.000
0.000
0.00
I
( R
Arsenic
S
( 87.13
797.909
0.000
0.000
0.00
I
I E
Phenols
S
I
0.000
0.000
0.000
0.00
(
I S
NH3-N
C
I
12667.384
1376.15
S.O.P l
NCAC YES
I U
T.R.Chlor.AL
1
271.289
246.90
Limit I
NCAC YES
I L
IT
I S
I

c
AMMONIA ANALYSIS
7Q10: 579.0000 cfs
NH3-N Effl. Conc: 18.7000 mg/1
NH3-N STDRD (5=1000;W=1800): 1800 ug/1 S= 1.0 mg/l; W= 1.8 mg/1
Upstream NH3-N Conc.: 220.0000 ug/1
Design Flow: 13.5000 MGD
Predicted NH3-N Downstream: 864.5706 ug/1
0.864570 mg/1
NH3-N Allowable: 45518.99 ug/1 LIMIT
45.51899 mg/1