NC0023876_Wasteload Allocation_19890321

SWE o
State of North Carolina
Department of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor R. Paul Wilms
William W. Cobey, Jr., Secretary March 21, 1989 Director
Stephen R. Shoaf, Utilities Administrator
City of Burlington
Box 1358
Burlington, NC _ 27216
Subject: Projected Wasteload Allocations for the East and South Wastewater
Treatment Plants (NPDES Nos. NCO025868 and NC0023876, Alamance
County)
Dear Mr. Shoaf,
This letter is in response to your request for projected wasteload alloca-
tions for the East and South Burlington wastewater treatment plants. Techni-
cal Services has evaluated the respective discharges to the Haw River and Big
Alamance Creek, and has estimated the limits necessary to protect the water
quality. These prospective limits take into account the interaction of the
two Burlington facilities with the Town of Graham WWTP, which also discharges
industrial wastewater in the nearby vicinity. The existing limits for the
Burlington facilities are shown below for toxicants of interest, along with
the limits expected to be made effective at permit renewal. Based on existing
information, the remaining domestic wastewater parameter limitations are not
expected to change.
F
Burlington East
Burlington
South
Existing
Projected
Existing
Projected
Cadmium
(mg/1)
Monitor
0.005
0.002
0.0024
Chromium
(mg/1)
Monitor
0.1255
0.058
0.060
Copper
(mg/1)
Monitor
Monitor
Monitor
Monitor
Nickel
(mg/1)
0.140
0.141
0.061
0.060
Lead
(mg/1)
0.065
0.070
Monitor
0.030
Zinc
(mg/1)
Monitor
Monitor
Monitor
Monitor
Cyanide
(mg/1)
Monitor
Monitor
Mercury
(mg/1)
Monitor
Monitor
0.0002
0.0002
It is important to realize that these are speculative limits and are sub-
ject to change. The projected effluent limits are based on the existing dis-
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmadve Action Employer

charge sites and on the best available data; final limits will be derived at
the time of permit renewal and will be based on the best available data at
that time.
I have also included in the following table the analytical detection lev-
els recommended by Technical Services for use by your laboratory in monitoring
compliance. I suggest that methods be employed to achieve these levels and
assure the quality of data reported by your facilities.
Recommended detection
Level (ug/1)
Cadmium
2
Chromium
25
Copper
10
— Nickel
10
- Lead
10
Zinc
10
Cyanide
20
Mercury
0.2
I hope this information is helpful in the long-range planning efforts of
the City of Burlington. If you have any questions or comments, please contact
myself or Trevor Clements of my staff at [phone].
Sincerely,
Steve W. Tedder, Chief
Water Quality Section
cc: =revor
Steve Maurfey
Central Files

CITY OF Burington
TELEPHONE [phone] • Box 1358
NORTH CAROLINA 27216
STEPHEN R. SHOAF
UTILITIES ADMINISTRATOR / FIELD OPERATIONS
March 9, 1989
Mr. Charles Wakild
Chief, Water Quality Section
NCDNRCD/DEM
P. 0. Box 27687
Raleigh, NC - 27611
Dear Mr. Wakild:
13
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,
AIAR 14 1989
WATER QU._ITY
SECTi_)Tq
,
This letter is written in follow-up to our phone conversation. The City
of Burlington would like to accept your offer to prepare projected waste load
allocation determinations for the East and South Burlington Wastewater
Treatment plants. We feel that information about the potential effluent
limits imposed if the proposed water quality standards are adopted will be
beneficial to our long-range planning efforts.
Thank you for your offer. If you need additional information, I can be
contacted at [phone]•
Sincerely,
Stephen R. Shoaf
Utilities Administrator
SRS/vh

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PRETREATMENT HEADWORKS REVIEW
-----------------------------
Discharger:
Receiving stream:
Stream Class:
7910:
Design flow:
Actual flow:
Percent industrial:
IWC:
BURINGTON EAST WWTP
HAW RIVER
C-NSW
34.000 cfs
1.2. 000 mg d
6.304 mgd
34.40
35.4
Actual
Allowable
Domestic
Pollutant
Standard/AL
Removal
Load
Load
---------
(mg/1)
-----------
Eff.
-------
(lbs/day)
---------
(lbs/day)
---------
Cadmium
0.002
S
92%
5.90
0.060
Chromium
0.05
S
89%
107.23
0.990
Copper
0.015
AL
90%
35.38
1.200
Nickel
0.05
S
39%
19.34
0.410
Lead
0.025
S
ei%
31.04
0.990
Zinc
0.05
AL
84%
73.72
3.450
Cyanide
0.005
S
59%
2.88
0.000
Mercury
0.0002
S
86%
0.34
0.010
Silver
0.01
AL
94%
39.32
Total
Predicted
Influent
Background
Effluent
Load
Reserve
Conc
Conc
(lbs/day)
(lbs/day)
(mg/1)
(mg/1)
--------
Cadmium
------------
0.32
---------
5.58
---------
O
40.0040 L
Chromium
7.48
99.75
0
0.0156 L
Copper
11.73
23.65
0
-)r 0.0400 M
Nickel
4.17
15.17
0
* 0.0930 L
Lead
3.13
27.91
0
* 0.0500 L
Zinc
23.49
50.23
0
*0.1100 M
Cyanide
0.00
2.88
0
0.0000
Mercury
0.01
0.33
0
0.0000 M
Silver
0.00
39.32
0
0.0000
ur-e-stlt5 obs"rvel
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03/20/99
Actual
Industrial
Load
(lbs/day)
0.260
6.490
10.530
3.760
2.140
20.040
0.000
0.000
Allowable
Effluent
Conc
(mg/1)
0.0050
0.1255
0.0376
0.1413
0.0706
0.1255
0.0125
0.0005
0.0241
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MASS BALANCE EQUATIONS FOR COMPLEX EFFLUENTS
--------------------------------------------
Facility Name:
Receiving Stream:
Stream Class:
USGS Zone:
7Q10:
Design Flow:
Actual Flow:
Percent Industrial:
IWC:
BURLINGTON SOUTH WWTP
BIG ALAMANCE CREEK
C-NSW
2
3.000 cfs
9.500 mgd
5.984 mgd
27.4 %
83.1
03/20/99
USGS
Allowable
Background
Effluent
Pollutant
Standard/AL
Conc
06,1, Ve J
r,b uc
Conc (c)
(mg/1)
(mg/1)
(mg/1)
--------
t98k
---------
'Cadmium
-----------
0.002
S
0
.o35
0.0024
'Chromium
0.05
S
0
.0,15
0.0602
Copper
0.015
AL
0
031
0.0181
jNickel
0.05
S
0
,03o
0.0602
/Lead-
0.025
S
0
6L>L,
0.0301
in c
0.05
AL
0
1,260
0.0602
Cyanide
0.005
S
0
BDI-
0.0060
,Mercury
0.0002
S
0
0.0002
Silver
0.01
AL
0
0.0120
Nc00 23T�G
L
L
L
I-
L

PRETREATMENT HEADWORKS REVIEW
-----------------------------
Discharger:
Receiving stream:
Stream Class:
7010:
Design flow:
Actual flow:
Percent industrial:
IWC:
BURINGTON SOUTH WWTP
BIG ALAMANCE CREEK
C-NSW
3.000 cfs
9.500 mgd
5.984 mgd
27.40 %
83.1 %
03/20/89
Actual
Actual
Allowable-
Domestic
Industrial
Pollutant
Standard/AL
Removal
Load
Load
Load
(mg/1)
-----------
Eff.
-------
(lbs/day)
---------
(lbs/day)
---------
(lbs/day)
---------
---------
Cadmium
0.002
S
92%.
1.65
0.000
0.300
Chromium
0.05
S
76%
13.77
2.030
0.920
Copper
0.015
AL
82%
5.51
2.480
1.970
Nickel
0.05
S
32%
4.86
0.950
1.550
Lead
0.025
S
81%
9.70
0.000
0.390
Zinc
0.05
AL
77%
14.37
7.120
9.900
Cyanide
0.005
S
59%
0.81
0.000
0.000
Mercury
0.0002
S
86%
0.09
0.010
0.010
Silver
0.01
AL
94%
11.02
Total
Predicted
Allowable
Influent
Background
Effluent
Effluent
Load
Reserve
Conc
Conc
Conc
(lbs/day)
(lbs/day)
(mg/1)
(mg/1)
--------
(mg/1)
--------
Cadmium
------------
0.30
---------
1.35
---------
O
* 0.0350
L
0.0024
Chromium
2.95
10.82
0
f 0.0250
L
0.0602
Copper
4.45
1.06
0
0.0400
M
0.0181
Nickel
2.40
2.46
0
0.0930
L
0.0602
Lead
0.39
8.31
0
0.0500
L
0.0301
Zinc
17.02
-2.65
0
f 0.1260
M
0.0602
Cyanide
0.00
0.81
0
0.0000
0.0060
Mercury
0.02
0.07
0
0.0001
L
0.0002
Silver
0.00
11.02
0
0.0000
0.0241
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North Carolina Division Of Environmental Management
Water duality Section / Technical Services Branch
Intensive Survey Unit
24 November 1987
MEMORANDUM
To: Trevor Clemen
Thru: Jay SauberJ •G�
From- Howard Bryant
Subject: South Burlington WWTP BOD-Longterm
Date Collected: 22 July 1967 (1515) Setup- 23 July 1967
Collector- J. Howells (1 130)
Day
BOD NH3 TKN
NOk
TOT N
Reps
0
0.17 4.2
k.o3
5.9
10.1
5
8.5 0.13 5.0
4.7
9.7
9
10
14.4 0.06 3.7
3.�4i
4.6
8.3
6
15
16.2 0.03 4.0
3
5.0
9.0
7
20
22.4 0.03 3.3
: ,z1
5.4
8.7
6
25
25.0 0.03 3.6
:.-
5.2
8.8
5
30
27.9 0.03 3.7
5.4
9.1
4
40
33.3
3
50
35.6
3
60
38.1
3
70
40.0 0.02 2.8
6.2
9.0
3
81
42.2
2
90
44.0
2
100
45.5
2
110
47.0
1
120
46.2
1
Comments: Test evaluation- good.
Cary Lab BOD5 - 6.0 mg/l.
pH - 6.65. 0 drops sulfite (per
100 ml).
1 drop biniodate.
Total phosphorous - 6.0 mg/l.

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6.03Z 0.00
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DIVISION OF ENVIRONMENTAL MANAGEMENT
October 8, 1987
MVM()PAVnTTM
TO: Dale Overcash
FROM: Trevor Clements
SUBJECT: Correction to Burlington South WLA (NC0023876)
This memo is to inform you of a correction which needs to be made in regard
to the final NPDES permit limitations for the City of Burlington, Southside
facility. The original wasteload allocation form indicated incorrect values for
the cadmium (Cd) and nickel (Ni) limits. The correct limitations are:
Parameter Limit
Cd 0.002 mg/1
Ni 0.061 mg/l
Please make a note of these changes and take the necessary steps to correct
the final NPDES permit before its reissuance. Let me know if further clari-
fication is required.
JTC
CC: file

State of North Carolina
Department of Natural Resources and Community' Development
Division of Environmental Management
512 North Salisbury Street 0 Raleigh, North Carolina 27611
James G. Martin, Governor
S. Thomas Rhodes, Secretary
October 8, 1987
Mr. Randall Kornegay
City of Burlington
P.O. Box 1538
Burlington, NC 27215
Dear Mr. Kornegay:
R. Paul Wilms
Director
Per your telephone request earlier today, I have enclosed the modeler
notes showing the calculations used to determine the metals limits for the
City of Burlington's East and Southside facilities. To help you better
understand the handwritten notes, I have also sent a copy of this Division's
procedure for calculating toxic limits for municipalities. Please note that
corrections regarding the South facility's cadmium and nickel limits have been
documented and that changes in the final NPDES limits for these constituents
should be forthcoming.
Please let me ]snow if I can be of further assistance.
Sind ely,
revor Clements
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]

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