NC0023876_Permit Issuance_20020419

4
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Gregory J. Thorpe, Ph.D., Acting Director
April 19, 2002
:%Ir. Stephen R. Shoaf
City of Burlington
P.O. Box 1358
Burlington, North Carolina 27216
A4v?WA
•
f
NCDENF1
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Issuance of NPDES Permit NCO023876
South Burlington W`W`I-P
Alamance County
Dear TNIr. Shoaf:
Division of Water Quality (Division) personnel have reviewed and approved your application for renewal of the subject
permit. Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the INIemorandum of agreement between North Carolina and the
U.S. Environmental Protection agency dated '�%Iay 9, 1994 (or as subsequently amended).
The following changes have been made to your draft permit:
• An ammonia reopener condition has been added to the effluent limits page. Discussions with the
Environmental Protection Agency (EPA) have prompted the Division to develop an implementation strategy for a
weekly average ammonia limit in municipal permits. Once this strategy is developed, we will begin placing weekly
average ammonia limits in permits. For permits that have already been issued, a reasonable potential analysis will be
performed using the new criteria. If a facility demonstrates reasonable potential to violate the new criteria, the
permit will be re -opened to include a weekly average ammonia limit. See Part A. (2.) for details.
• The sample type for cyanide has been changed from composite to grab. This was an unintentional error in
the draft permit.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you
have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request
must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
Office of administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is
made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other
permits which may be required by the Division of Water Quality or permits required by the Division of Land Resources, the
Coastal Area Management Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Natalie Sierra at telephone number [phone],
extension 551.
Sincerely,
Qtiginal Signed By
David A, Goodrich,
Gregory J. Thorpe, Ph.D.
cr. Central Files
Winston-Salem Regional Office/Water Quality Section
r
Technical Assistance & Certification Unit
Aquatic Toxicology Unit
US EPA Region 4
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer VISIT Us ON THE INTERNET 0 http://h2o.enr.state.nc.us/NPDES

Permit NCO023876
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance. with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
City of Burlington
is hereby authorized to discharge wastewater from a facility located at the
South Burlington WWTP
2471 Boy Wood Road
Graham
Alamance County
to receiving waters designated as' Big Alamance Creek in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective June 1, 2002.
This permit and authorization to discharge shall expire at midnight on May 31, 2006.
Signed this day April 19, 2002.
Original Signed By
David A. Goodrich
Gregory J: Thorpe, Ph.D., Acting Director
Division of -Water Quality
By Authority of the Environmental Management Commission

Permit NCO023876
SUPPLEMENT TO PERMIT COVER SHEET
City of Burlington is hereby authorized to:
Continue to operate an existing 12.0 MGD wastewater treatment facility
consisting of a bar screens, grit chamber, equalization basin, primary clarifiers,
anaerobic tanks, anoxic tanks, aeration tanks, secondary clarifiers, final effluent
filters, chlorination (including non -potable water re -use), dechlorination, and
primary and secondary sludge handling located at South Burlington Wastewater
Treatment Plant on Boy Wood Road in Graham, Alamance County, and
2. Discharge from said treatment works at the location specified on the attached
map into Big Alamance Creek, which is classified C-NSW waters in the Cape Fear
River Basin.

I
City of Burlington
Southside WWTP
State Grid/Ouad: C21 SE /Mebane, NC
Latitude: 36° 01' 05" N
Longitude: 79° 22' 27" W Permitted Flow: 12.0 MGD
Receiving Stream: Big Alamance Creek Drainage Basin: Cape Fear River Basin
Stream Class: C-NSW Sub -Basin: 03-06-02
Facility
Location
'
not to scale'''
North
NPDES Pemi t No. NCO023876
Alamance County

Permit NCO023876 'r
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
:-
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Avera a
Daily
Maximum
Measurement
Frequency
Sample
T e
Sample Location!
Flow
12.0 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 day, 20°C2
(April 1— October 31)
9.0 mg/I
13.5 mg/1
Daily
Composite
Influent, Effluent
BOD, 5 day, 200C2
(November 1 — March 31)
18.0 mg/I
27.0 mg/I
Daily
Composite
Influent, Effluent
Total Suspended Residue
30.0 mg/I
45.0 mg/I
Daily
Composite
Influent, Effluent
NH3 as N (April 1— October 31)3
3.0 mg/I
Daily
Composite
I Effluent
NH3 as N November 1-March 31 3-
6.0 m L
Daily
Com osite
Effluent
Dissolved Oxygen4
Daily
Grab
Effluent, Upstream,
Downstream
Fecal Coliform
(geometric mean
200 / 100 ml
400 / 100 ml
Daily
Grab
Effluent, Upstream,
Downstream
Total Residual Chlorine
Daily
Grab
Effluent
Temperature (9C)
Daily
Grab
Effluent, Upstream,
Downstream
Total Nitrogen NO2 + NO3 + TKN
Monthly
Composite
Effluent
Total Phosphorus5
2.0 mg/I
(Quarterly Average
Weekly
Composite
Effluent, Upstream,
Downstream
Chronic Toxicity6
Quarterly
Composite
Effluent
Conductivity
Weekly
Composite
Effluent, Upstream,
Downstream
Cyanide8
5.8 1
20.0 1
Weekly
Grab
Effluent
Total Copper
Monthly
Composite
Effluent
Total Zinc
Monthly
Composite
Effluent
Total Silver
Monthly
Composite
Effluent
F'I9
Weekly
Grab
Effluent
Footnotes:
i Sample locations: For instream monitoring requirements•and sample locations, see Part A. (3.). Instream monitoring
requirements shall be waived as long as the facility continues to participate in the Upper Cape Fear River Basin
Association.
2 The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent
value (85% removal).
�b 3 The Division may re -open this permit to require weekly average limits for ammonia. After calculating allowable
O/k concentrations, the Division will perform an analysis of past ammonia data to determine if there is a reasonable potential for
Q this discharge to exceed these potential limits. If there is, this permit will be re -opened. If there is not, the permit will not be
re -opened, but will contain weekly average limits for ammonia upon renewal.
4 The daily dissolved oxygen effluent concentration shall not be less than 5.0 mg/1.
�. 5Compliance shall be based upon a quarterly average of weekly samples
6 Chronic Toxicity (Ceriodaphnia) P/F at 86% in January, April, July and October (see Part A (2.))
7 Conductivity samples shall be collected three times per week from June -September and once per week the remainder of the
year. See Part A.(3.) for additional information
8The quantitation limit for cyanide shall be 10 ug/1 (10 ppb). Levels reported at less than 10 ug/l shall be considered zero for
compliance purposes.
9 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the
effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace
amounts.

K Permit NCO023876
A. (2.) CHRONIC TOXICITY PASS/FAIL PERMIT LIEIIT
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 86%.
The permit holder shall perform at a minimum, guarterlu monitoring using test procedures
outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised
February 1998, or subsequent versions or "North Carolina Phase 11 Chronic Whole Effluent
Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. The tests will be
performed during the months of January, April, July and October. Effluent sampling for this
testing shall be performed at the NPDES permitted final effluent discharge below all treatment
processes.,::
N the test procedure performed as the first test of any single quarter results in a failure or ChV
below the permit limit, then multiple -concentration testing shall be performed at a minimum,
in each of the two following months as described in "North Carolina Phase II Chronic Whole
Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the
highest concentration having no detectable impairment of reproduction or survival and the lowest
concentration that does have a detectable impairment of reproduction or survival. The definition of
"detectable impairment," collection methods, exposure regimes, and further statistical methods are
specified in the "North Carolina Phase Il Chronic Whole Effluent Toxicity Test Procedure" (Revised -
February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
„ Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the
parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWQ
Form AT-3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no
later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and
all concentration/response data, and be certified by laboratory supervisor and ORC or approved
designate signature. Total residual chlorine of the effluent toxicity sample must be measured and
reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT)
test form indicating the facility name, permit number, pipe number, county, and the month/year of
the report with the notation of "No Flow" in the comment area of the form. The report shall be
submitted to the Environmental Sciences Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required,
monitoring will be required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival, minimum control organism reproduction, and appropriate environmental
controls, shall constitute an invalid test and will require immediate follow-up testing to be completed
no later than the last day of the month following the month of the initial monitoring.

1.
Permit NCO023876
A. (3.) INSTREAM MONITORING REQUIREMENTS
NOTE: The following need only be sampled if the permittee should elect to withdraw
membership in the Upper Cape Fear River Basin Association.
PARAMETERS TO BE SAMPLED:
Parameter Sample Type Frequency
Dissolved Oxygen Grab 3/week (June - September)
1 /week (October - May)
Fecal Coliform Grab 3/week (June - September)
1 /week (October - May)
Temperature Grab 3/week (June - September)
1 /week (October - May)
Conductivity Grab 3/week (June - September)
1 /week (October - May)
Total Phosphorus Grab 3/week (June - September)
1 /week (October - May)
SAMPLE LOCATIONS:
1. Upstream at Highway 87.
2. Downstream at a) Boy Wood Road (NCSR 2116)
b) Saxapahaw Lake - above dam (sampling at this point shall not be
required if the river flow is greater than 250 cfs at the USGS gauge
02096500)
c) NCSR 1005
Upstream and downstream samples shall be grab samples. Instream sampling should
be coordinated to reduce redundant sampling for the Burlington - East, Burlington -
South and Graham wastewater treatment facilities under the guidance of the
Winston-Salem Regional Office. Each facility should conduct instream sampling the
same day and in so far as possible at the same time of day.
REPORTING REQUIREMENTS:
Data entered on a from approved by the Division of Water Quality and summarized in an
annual report due by January 1st of the year immediately following the summer period
when sampling occurred.
Yearly monitoring reports shall be sent to:
NCDENR/DWQ
Modeling/TMDL Unit
1617 Mail Service Center
Raleigh, NC 27699-1617

Re: City of Burlington permits
Subject: Re: City of Burlington permits
Date: Thu, 11 Apr 2002 15:13:47 -0400
From: [e-mail]
To: Natalie Sierra <Natalie. Sierra@ ncmail.net>
sorry for the confusion. Yes, you can go ahead and issue them. thanks.
1 of 1 4/12/02 1:24 PM

comme�nis on NCO023876 - Burlington South WWTP
Subject: comments on NCO023876 - Burlington South WWTP
Date: Fri, 08 Feb 2002 09:09:28 -0500
From: [e-mail]
To: [e-mail]
CC: Ejimofor.Caroline@ epamail.epa.gov, [e-mail], [e-mail]
yesterday's conf call with Dave, Mike, Susan, and Mike cleared some
things up for us. I do have the following comments/questions on this
draft permit. Please email me your response. Feel free to correct any
assumptions I made. Call me at [phone] if you want to discuss
further. thanks. Marshall
1. The permit does not contain weekly average limits for total ammonia,
as required by 40 CFR 122.45(d)(2). I know this is a global issue for
many NC municipal permits and we are in discussions with Dave to resolve
this.
2. The RPA shows excursions of the action levels for Zn and Cu, but no
limit is required apparently because it is not known if there are WET
violations for 2001. However, the 2000 WET data submitted show 2
violations in 12 tests. I thought your policy was that if there are WET
violations and action levels are being exceeded, that chemical -specific
limits for those action level criteria would be required. Pls explain
your decision to not include limits for Cu and Zn.
3. Cd and Pb were deleted due to monitoring data showing RP. The RPA
shows zeros for each monthly value. This is ok as long as a
sufficiently sensitive analytical method was used. If it's not too much
trouble, can you verify that the detection levels for these data that
were reported as zeros were sufficiently low enough?
4. The previous permit had a Do limit of 6.0 mg/1; this draft says 5.0
mg/l. I didn't see a rationale for the change in the fact sheet. Pls
explain.
5. Is the reason total N isn't limited in this permit is that
modeling/study of Jordan Lake is still ongoing and that it's not known
if total N is co -limiting?
6. The permit does contain total P conc limits based on House Bill 515,
but it doesn't contain mass annual average limits as required. I know
that the permit does indirectly meet that through limiting flow and
concentration, but to me that isn't implementating what the state law
says. I have reviewed some Durham? permits by Tom Belnick where such
annual avg mass limits were included.
1 of 1 2/8/02 9:26 AM

CITYOFBurlington
Telephone [phone] Fax [phone]
P.O. Box 1358
Burlington, N.C. 27216-1358
STEPHEN R. SHOAF
DIRECTOR OF UTILITIES
June 20, 2001
Ms. Natalie V. Sierra
NCDENR/DWQ - NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Draft NPDES Permit No. NCO023876
South Burlington WWTP
Alamance County
Dear Ms. Sierra:
s
_
i O
d
N
LU cu
t7 cv
"
�
r-
K 2
The following comments concerning draft NPDES permit No. NCO023876 for the South Burlington
WWTP are in response to your letter dated June 3, 2001 and received by the City on June 7, 2001.
We have no objections to the modifications to the limits and monitoring requirements as shown in your
letter and the draft permit. We are investigating and will familiarize ourselves with the policy concerning
action levels for copper and zinc as they relate to aquatic toxicity.
We are continuing our participation in the Upper Cape Fear River Basin Association.
The sample type listed for conductivity on the effluent limitations page is "Composite". We think it should
be "Grab".
The sample typed listed for cyanide on the effluent limitations page is "Composite". We think it should be
listed as "Grab".
On the permit cover page we prefer that the facility name be listed as "South Burlington WWTP".
If you have any questions or if I may be of assistance, please contact me at [phone].
Sincerely,
U
Stephen R. Shoaf
Director of Utilities
City of Burlington
cc: Jay Sykes, City of Burlington
Christie Jackson, DWQ
Larry D. Coble, NCDENR/DWQ/WSRO
SS/si

FROM ED THOMAS WTP FAX NO. : 33G 222-5133 Dec. 13 2001 05:52PM P3
AMENDMENT TO NPDES PERMIT APPLICATION
Backou d
In mid-2001. the U.S. E.nvirotmmcn.tal Protection Agency, which, oversees North Carolitia's
NPDES permit program, determined that the stag&s application form for major municipal
dischargers is inadequate. The EPA indicated that the form does not require a sunmmary of
the applicant's wastewater chatacteristics, as EPA's standard form does, and does not
provide the necessary public record for per nit issuance. Since July 2001, EPA has objected "
to the issuance of approxitiiately forty permit renewals until the pct rtittees provide complete
application. -
In recent discussions with the Division of Water Quality, the EPA recently agreed that the
Division may provide the monitoring information an each petmittces behalf rather than
require the facilities to complete new applications. The pera ittecs have already submitted
dischatge monitoring reports (DMRs) wider the terms of their NPDES permits, and the
Division can easily produce sumtngdes for each facilty. However, the Division does not have
the legal authority to amend a facility's application; each permittee must give its consent in
order for the Division to submit this information on its behalf. North Carolina will provide
a summary of discharge monitoring reports as additional documentation to cusure the
record is complete.
'The statement below is designed to g}ve the Division the aut:hoi ity'fo submit' is data on
behalf of the puttee for this one instance. Other than s� the statement below,
no fiutlter action will be �tequited on the part of the permit holder. Furthermore, this
will not change the substance of the draft permit already issued by the Division.
pLEASE SIGN AND RETURN THE FOLLOWING STATEMENT AS SOON AS
FOSSISI,E. THIS STA'YTMENT WILL CONSTITUTE AN OFFICIAL PERMIT
AMENDMENT. In order to expedite the renewal of Your permit, please fax the
signed formm. to (919)-733-0719 and send the original to:
NCDENR/DWQ/NPDES UNIT
1617 Mail Setvice Center
Raleigh, ITC 27699-1617
Certifi anon of P it Application Amendtnetrt
"I certify that this information, to the best of my knowledge and belief, is true, complete,
and accurate. This information, including any data provided, amends the current application
for teissuance of NPDES permit number NCO023876 submitted to the North Carolina
Department of Environment and Natural. Resources, Division of Water {duality, can July 24,
2o00."
Signatute of Permit Holder Date

AFFIDAVIT OF INSERTION OF ADVERTISMET
The Times -News Publishing Company
Burlington, NC
Alamance County
I, LINDA WHITAKER Legal Advertising Manager of the The Times -News
Publishing Co., do certify that the advertisement of NCDENR/DWQ/Budget
entitled
Public Notice
State of North
Measuring 99 lines appeared in The Times -News, a newspaper publish(
Alamance County, Burlington, NC ,in issues of ,rune 3, 2001
9'-1' o;�tA�
Legal Advertising Manager
)JcWZ387E
Sworn to and subscribed before me this day of L ,
Notary. blic
My commission expires 1-
I")10i

PROPOSED DRAFT PERMIT AMENDMENTS
DENR/DWQ
FACT SHEET ADDENDUM FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO023876
Facility Information
Applicant/Facility Name:
City of Burlington — South Burlington WWTP
Applicant Address:
P.O. Box 1358; Burlington, North Carolina 27216-1358
Facility Address:
2471 Boy Wood Road; Graham, North Carolina
Permitted Flow
12.0 MGD
Type of Waste:
88% Domestic
12% Industrial
Facility/Permit Status:
Class IV/Active; Renewal
County:
I Alamance Count
Miscellaneous
Receiving Stream:
Big Alamance
Creek
Regional Office:
WSRO
Stream Classification:
C-NSW
State Grid / USGS Quad:
C21SE/Mebane, NC
303(d) Listed?
No
Permit Writer:
Natalie Sierra
Subbasin:
03-06-02
Date:
11May01
Drainage Area (mi'):
262
Lat. 36° Ol OS" N Lon 79° 22' 27" W
Summer 7Q10 (cfs)
3.0
Winter 7Q10 (cfs):
20
30Q2 (cfs)
24
Average Flow (cfs):
236
IWC (%):
86
BACKGROUND
During the 30-day comment period, the City of Burlington submitted several minor comments
on the draft permit for the South Burlington WWTP.
FACILITY COMMENTS
The following section separates out the facility's concerns. Each concern is followed by the proposed
Division response.
• The sample type for cyanide is listed as "composite" - the facility believes it should be
"grab." This is correct; effluent samples for cyanide are always grab samples.
• The sample type listed for conductivity is "composite" - the facility believes it should be
"grab." This is incorrect; effluent samples for conductivity are composite samples under North
Carolina Administrative Code Section:15A NCAC 2B.0505.
• On the cover page of the permit, the facility name is listed as "Southside WWTP" - it is the
City's preference that the facility be referred to as "South Burlington WWTP." The
NPDES database will be updated accordingly.
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please contact
Natalie Sierra at [phone] ext._551.
Fact Sheet
NPDES NCO003719 Renewal
Page 1.

REASONABLE POTENTIAL ANALYSIS
City of Burlington
South WWTP
NCO023876
Time Period Jan 1998 thru March 2001
Qw (MGD) 12
7Q10S (cfs) 3
30Q2 (cfs) 24
Stream Flow, QA (cfs) 236
Rec'ving Stream Big Alamance Creek
Summary for 12.0 MGD
<< For Instructions, See RED TAB (cell Al).
WWTP Class 4
IWC (%) @ 7Q10S 86.1
@ 30Q2 43.7
@ QA 7.3
Stream Class C-NSW
STANDARDS &
REASONABLE
PRELIMINARY
PARAMETER
TYPE*
CRITERIA
QL
POTENTIAL
RESULTS
RECOMMENDED ACTION
NCWQS '/2 FAV
RESULTS
n = 164
MaxPredCw < Allowable Cw
Cadmium
NC
2 15
1
Max Pred Cw 2
No limit or monitoring necessary in NPDES permit.
Allowable Cw (acute) 15
MONITOR?
Monitoring may still be required under LTMP.
Allowable Cw (chronic) 2
MONITOR?
n = 23
MaxPredCw > Action Level
Copper
NC
7 7.3
2
Max Pred Cw 30.8
Require monitoring 2/week
(AL)
Allowable Cw (acute) 7
DAILY MAX. LIMIT
No limit at this time since no standard in place.
Allowable Cw (chronic) 8
WK. AVG. LIMIT
n = 170
MaxPredCw > 1/2 FAV
Cyanide
NC
5 22
Max Pred Cw 18.5
Set daily max. limit = 22 ug/L
Allowable Cw (acute) 22
MONITOR?
Require monitoring 2/week
Allowable Cw (chronic) 6
WK. AVG. LIMIT
n = 164
MaxPredCw < Allowable Cw
Lead
NC
25 33.8
5
Max Pred Cw 13.4
No limit or monitoring necessary in NPDES permit.
Allowable Cw (acute) 34
MONITOR?
Monitoring may still be required under LTMP.
Allowable Cw (chronic) 29
MONITOR?
n = 37
MaxPredCw < Allowable Cw
Fluoride
NC
1.800
Max Pred Cw 1.587
No limit at this time -
Allowable Cw (acute) N/A
MONITOR?
Allowable Cw (chronic) 2.090
MONITOR?
Require monitoring 2/week.
n = 22
MaxPredCw > Allowable Cw
Silver
NC
0.06 1.23
Max Pred Cw 1654.0
No limit or monitoring necessary in NPDES permit.
(AL)
Allowable Cw (acute) 1
DAILY MAX. LIMIT
Monitoring may still be required under LTMP.
Allowable Cw (chronic) 0.07
WK. AVG. LIMIT
n = 38
MaxPredCw < Allowable Cw
Chloride
NC
230000.0
Max Pred Cw 420.0
No limit or monitoring necessary in NPDES permit.
(AL)
Allowable Cw (acute) N/A
MONITOR?
Monitoring may still be required under LTMP.
Allowable Cw (chronic) 267,097
MONITOR?
n = 18
MaxPredCw = NCWQS
Aluminum
NC
Max Pred Cw 3669.1
No limit at this time -
Allowable Cw (acute) N/A
MONITOR?
Allowable Cw (chronic) 0
WK. AVG. LIMIT
Require monitoring 2/week.
n = 38
MaxPredCw > Action Level
Zinc
NC
50 67
10
Max Pred Cw 247.0
Require monitoring 2tweek
(AL)
Allowable Cw (acute) 67
DAILY MAX. LIMIT
No limit at this time since no standard in place.
Allowable Cw (chronic) 58
WK. AVG. LIMIT
*Legend., ** Freshwater Discharge
C = Carcinogenic
NC = Non -carcinogenic
A = Aesthetic
K� - P. L. 4TT )
NC0023876_dmrrpa, X- MGD
5/8/01

Temperature
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Nov-98 Feb-99 May-99 Aug-99 Dec-99 Mar-00 Jun-00
Upstream
Downstream - Boys Woods Rd. Bridge
Downstream - Above Saxapahaw Dam
�— Downstream - Bridge on SR 1005

M
0.5
0.4
0.3
0.2
0.1
Jai
-0.1
Total Phosphorus
-99 Feb-99 Apr-99 May-99 Jul-99 Sep-99 Oct-99 Dec-99 Feb-00 Mar-00
* Upstream
—�— Downstream #1 - Bridge on
Boys Woods Rd.
A, Downstream #2 - Above
Saxapahaw Dam
—x Downstream #3 - Bridge on SR
1005

Conductivity
0
M
:fN
700
.�4
500
400
300
200
100
0 ' i I i I I '
Nov-98 Feb-99 May-99 Aug-99 Dec-99 Mar-00 Jun-00
—a— Upstream
—* Downstream #1 - Bridge on
Boys Woods Rd.
* Downstream #2 - Above
Saxapahaw Dam
--- Downstream #3 - Bridge on
SR 1005

Fecal Coliform
1400
1200
1000
M
.le
400
200
—m-- Upstream
-f- Downstream - Boys
Woods Rd. Bridge
x Downstream - Above
Saxapahaw Dam
-CIE- Downstream - Bridge
on SR 1005
Nov-98 Feb-99 May-99 Aug-99 Dec-99 Mar-00 Jun-00

F •
12
10
0
0
4
2
Nov-98 Feb-99 May-99 Aug-99 Dec-99 Mar-00 Jun-00
Upstream
Downstream - Boys Woods Rd. Bridge
- K Downstream - Above Saxapahaw Dam
Downstream - Bridge on SR 1005
—Instream D.O. Standard

Burlington South WWTP
NCO023876
Instream Monitoring Data
Upstream
Downstream #1 - Bridge on Boys Woods Rd.
Pate
Temperature DO'
Fecal coliform ;Conductivity Total', Phosphorus:
Date '
Temperatu DO -
Fecal colifoConductivitTotal .Phosphorus'
(deg 0) . (mg/L)_
(#I100),-(umho),
(mg/L) .
V_, -
(deg C)- ,(mW�) .r
(#/100)_.
(umho} (roglU).
__.
Jan-99
4
11.1
340
125
0.05
Jan-99
6
10.2
408
207
0.06
Feb-99
4
10.3
134
154
0.12
Feb-99
7
9.5
106
202
0.07
Mar-99
8
10
136
163
0.06
Mar-99
10
9.4
136
255
0.13
Apr-99
12
8
200
151
0.05
Apr-99
14
7.1
137
300
0.05
May-99
16
8.5
327
124 <0.05
May-99
17
7.7
186
203
0.08
Jun-99
22
5.9
140
156
0.24
Jun-99
24
5.8
60
562
0.34
Jul-99
25
7.2
392
137
0.11
Jul-99
26
5.4
177
381
0.28
Aug-99
24
4.5
156
158
0.07
Aug-99
27
4.2
118
762
0.53
Sep-99
20
6.9
639
101
0.09
Sep-99
22
6.1
1313
262
0.27
Oct-99
16
7
192
121 <0.05
Oct-99
17
6.4
224
179
0.14
Nov-99
12
7.9
282
131 <0.05
Nov-99
14
7.3
224
241
0.08
Dec-99
Dec-99
9
8.8
35
192
0.07
Jan-00
7
9.5
179
149 <0.05
Jan-00
7
9.3
131
172
0.16
Feb-00
8
8.8
87
115 <0.05
Feb-00
8
8.9
103
144
0.05
Mar-00
12.5
8.4
173
123
0.05
Mar-00
13
7.9
138
183
0.12
Apr-00
14
7.4
140
111 <0.05
Apr-00
15
7.5
188
152
0.11
May-00
19
6.3
136
130
0.05
May-00
19
6
148
235
0.13
Downstream #2 - Above Saxapahaw Dam
Downstream
#3 - Bridge on
SR 1005
Date " o,'Temperature DO .;
Fecal coliform .Conductivity Total,Phosphorus
Date
TemperatuDO
Fecal.colifoConductivitTotalPhosphorus
,E(deg
C) (mg/L)
(#1100) (umho)
(mg/L) ,.
(deg C) (mglL) (#/100)
(uitiho) (rng14)
Jan-99
5
10.8
631
178
0.1
Jan-99
5
10.5
783
159
0.06
Feb-99
8
9.8
276
248
0.09
Feb-99
8
9.8
249
198
0.12
Mar-99
9
10.1
150
220
0.25
Mar-99
8
10.7
116
223
0.1
Apr-99
16
7.6
22
257
0.2
Apr-99
16
7.9
32
247
0.05
May-99
18
7.6
99
199
0.08
May-99
18
7.6
123
186
0.1
Jun-99
23
8.1
15
471
0.24
Jun-99
22
6.6
44
461
0.22
Jul-99
25
7.8
38
294
0.26
Jul-99
25
6.1
91
273
0.23
Aug-99
25
7.1
19
463
0.42
Aug-99
25
5.9
53
440
0.38
Sep-99
22
6.9
216
140
0.14
Sep-99
21
7.2
452
137
0.16
Oct-99
18
8
336
173
0.08
Oct-99
16
8.6
400
185
0.06
Nov-99
13
8.4
131
279
0.12
Nov-99
13
8.8
101
287
0.06
Dec-99
8
9.8
356
214
0.15
Dec-99
9
10.4
159
205 <0.05
Jan-00
7
10
148
180 <0.05
Jan-00
5
10.5
112
210 <0.05
Feb-00
10
8.6
96
161
0.06
Feb-00
8
9.4
109
164
0.07
Mar-00
14
7.5
40
211
0.15
Mar-00
15
7.9
67
205
0.1
Apr-00
16
8.6
240
163
0.09
Apr-00
16
8.5
285
159
0.06
May-00
19
9.3
85
224
0.11
May-00
19
9.4
29
218
0.09

Difference between upstream and downstream #1
Delta Delta
Delta
Delta
Delta
Temp DO
Fecal
Cond
TP
2
0.9
68
82
0.01
3
0.8
28
48
0.05
2
0.6
0
92
0.07
2
0.9
63
149
0
1
0.8
141
79
0.055
2
0.1
80
406
0.1
1
1.8
215
244
0.17
3
0.3
38
604
0.46
2
0.8
674
161
0.18
1
0.6
32
58
0.115
2
0.6
58
110
0.055
0
0.2
48
23
0.135
0
0.1
16
29
0.025
0.5
0.5
35
60
0.07
1
0.1
48
41
0.085
0
0.3
12
105
0.08
1.4
0.6
97.3
143.2
0.1

Burlington South VWVTP
NCO023876
Nutrient Data
Date Flow
(MGD)
NH3-EN
(mg/L)
Total N , NO2-3 °
(rnjg L) (m9/L) ..
TKN
(mg/L)
Total P
(mg/L)
Jan-99
8.4
<0.5
7.6
2.4
5.1
0.8
Feb-99
8
<0.5
25.3
2.7
23
1
Mar-99
7.9
<0.5
5.6
2.1
3.7
0.7
Apr-99
8.1
<0.5
8.6
2
6.2
0.5
May-99
7.4
<0.5
10.4
3.9
4.2
0.5
Jun-99
6.6
<0.5
13
6.1
6.9
0.5
Jul-99
6.3
<0.5
10.2
6.3
3.9
0.5
Aug-99
6.9
<0.5
11.3
6.6
4.7
1.7
Sep-99
9.1
<0.5
8.6
4.2
4.4
1.4
Oct-99
8
<0.5
7.5
3.1
4.4
1.5
Nov-99
7.1
<0.5
7.7
2.6
5.1
0.9
Dec-99
6.8
1.5
2.5
4.9
0.6
0.94
Jan-00
7.7
<0.5
7.9
3
4.8
1.2
Feb-00
9.4
1.3
8.2
1.5
6.7
1.1
Mar-00
8.3
<0.5
8
3.6
4.4
1.7
Apr-00
8.4
<0.5
6.4
2.6
3.8
1.2
May-00
7.6
<0.5
4.7
1.6
3.1
0.9
Jun-00
7.1
<0.5
5.4
1.6
3.8
1.8
Jul-00
6.9
<0.5
7.2
1.7
5.5
1.7
Aug-00
8
<0.5
4.5
0.6
3.9
0.7
Sep-00
8.1
<0.5
4.7
.4.2
1.3
1.3
Oct-00
7.2
<0.5
5.7
0.9
4.8
1.5
Nov-00
7.1
<0.5
5.1
1.6
3.5
Dec-00
6.7
1
5.7
0.9
4.9
0.8
Jan-01
7.4
<0.5
5.1
1.2
3.8
0.6
Feb-01
8.3
<0.5
5.2
0.9
4.4
0.7
Mar-01
9.1
<0.5
5.4
0.9
4.5
1.2
Average
7.7
7.69
2.73
5.01
1.05
Maximum
9.4
1.5
25.3
6.6
23
1.8
Minimum
6.3 <0.5
2.5
0.6
0.6
0.5

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO023876
Facility Information
Applicant/Facility Name:
City of Burlington — South Burlington WWTP
Applicant Address:
P.O. Box 1358; Burlington, North Carolina 27216-1358
Facility Address:
2471 Boy Wood Road; Graham, North Carolina
Permitted Flow
12.0 MGD
Type of Waste:
88% Domestic
12% Industrial
Facility/Permit Status:
Class IV/Active; Renewal
County:
Alamance Count
Miscellaneous
Receiving Stream:
Big Alamance
Creek
Regional Office:
WSRO
Stream Classification:
C-NSW
State Grid / USGS Quad:
C21SE/Mebane, NC
303(d) Listed?
No
Permit Writer:
Natalie Sierra
Subbasin:
03-06-02
Date:
1 l Ma 01
Drainage Area (mi2):
262
Lat. 36° 01 OS" N Lon 79° 22' 27" W
Summer 7Q10 (cfs)
3.0
Winter 7Q10 (cfs):
20
30Q2 (cfs)
24"
Average Flow (cfs):
236
IWC (%):
86
BACKGROUND "of
+� N�The South Burlington WWTP is one of two wastewater treatmen City of
Burlington. In addition to the City of Burlington, the rves theamance,
Town of Elon College, Town of Gibsonville, Town o Se S�onvil and tam a
total population of 28,267. The facility also treats waste fro qq ignsers
(SIUs), amounting to about 1.53 MGD.
The South Plant discharges to Big Alamance Creek in the Cape Fear River Basin. This
river is classified as nutrient sensitive waters (NSW). In the 1997 session of the North Carolina
General Assembly, the House of Representatives passed Bill 515. This bill requires publicly
owned treatment works (POTWs) discharging to receiving waters classified as nutrient sensitive
(NSW) to meet annual mass discharge loads and effluent concentrations of 5.5 mg/L of total
nitrogen and 2.0 mg/L of total phosphorus. In addition to performing a treatment plant
optimization study to assess the feasibility of meeting these limits, the City is participating in the
Jordan Lake modeling effort.
The City of Burlington has prioritized a list of treatment plant improvements that should
take place within the next 5-7 years. A 1999 Authorization to Construct permits an upgrade of
the influent pump station, which was damaged during Hurricane Fran. Short-term improvement
plans also include an upgrade of the dissolved oxygen control system, filter rehabilitation, and
replacement of the chlorine gas fee system with a liquid sodium hypochlorite feed. Should
nutrient limits be imposed, the consulting firm of Stearns and Wheler has developed preliminary
plans for increased nutrient removal. The City of Burlington recently (May 2000) joined the
Upper Cape Fear River Basin Association to monitor nutrients and other water quality
parameters in the basin.
Fact Sheet
NPDES NCO023876 Renewal
Pau I

t
Instream Monitoring and Verification of Existing Conditions and DMR Data Review.
DMRs were reviewed beginning in January 1998 through March 2001. Average flow
during this time was 7.7 MGD. Total phosphorus measurements ranged from 0.5 mg/L to 1.8
mg/L with an average of 1.05 mg/L, indicating that the facility should not have much problem
meeting a monthly average limit of 2.0 mg/L. Total nitrogen averaged 7.69 mg/L with monthly
average values ranging from 2.5 mg/L to 25.3 mg/L.
Instream monitoring data from the Upper Cape Fear Monitoring Coalition was not
accessible at this time. Instream data from January 1999 through May 2000 was examined for
temperature, dissolved oxygen (DO), fecal coliform, total phosphorus, and conductivity. The
discharge appears to have the largest downstream effect on temperature, phosphorus and
conductivity. There was an average difference of 1.4 degrees Celsius between upstream and
downstream temperature values, similar to what was reported in the previous fact sheet from the
1996 permit renewal. On only one occasion were instream dissolved oxygen levels downstream
of the discharge below the 5-mg/L standard. Please see the attached instream data plots for more
information.
Data from both the Pretreatment LTMP and the DMRs was used to assess reasonable
potential for cadmium, chlorides, lead, copper, silver, zinc, cyanide and fluoride.
Results of Reasonable Potential Analysis (RPA):
A reasonable potential analysis (RPA) was performed for all monitored parameters. It
was determined that there is reasonable potential for pollution from the following:
• Copper
• Cyanide
• Silver
• Zinc
No reasonable potential exists for the following:
• Cadmium
• Chlorides
• Fluoride
• Lead
Copper, Silver, and zinc are all action level pollutants. Although South Burlington
WWTP has had periodic toxicity problems in the past, a need for limits will not be
assessed unless they begin to have problems from January 2001 onward. These
compounds will be monitored only, not limited.
Correspondence: The most recent modification to the permit was done on September 17, 1997.
This modification eliminated the orthophosphate monitoring requirement from the instream
monitoring requirements.
Compliance inspections by the Winston-Salem Regional Office (WSRO) reveal a well -
run facility with few problems. There is one letter from WSRO dated March 17, 1999,
expressing concern over inflow and infiltration (I/I) problems and flow exceedences. The July
2000 report from Stearns and Wheler, in addition to assessing the facility's ability to meet
nutrient limits, also lays out a plan to address I/I problems.
There have been eight Notices of Violation (NOV) given to the facility — all but one (for
exceedence of the BOD5 weekly average limit) was for failure of the effluent toxicity test.
Fact Sheet
NPDES NCO023876 Rcnewal
Pa<llc ,

City of Burlington East and South Wastewater Plants
NPDES # NCO023868 and NCO023876
Headworks Long Term Monitoring Plan
rlv Monitorin
A 24 hour composite of combined influent (Equalization Basin effluent) will be collected. This is sample point # -1
on the attached wastewater plant diagrams. A 24 hour composite of final effluent (after dechlorination) will be
collected on the same day. This is sample point # 2 on the attached wastewater plant diagrams. Both samples will
be analyzed for ammonia, BOD5, cyanide; total phosphorus, total suspended solids, aluminum, arsenic, cadmium,
chromium, copper, lead, mercury, molybdenum, nickel, selenium, silver and zinc. Parameters which specify grab
collection will be collected as such. The land applied sludge also will be analyzed for the pollutants of concern.
Industrial samples will be collected quarterly or more often when industries are required to self -monitor. These
samples will be analyzed for permitted parameters to update the headworks.
Semi -Annual Monitoring
The activated sludge basin (sampling point #3) will be sampled once every six months. This will be a non -filtered
grab sample. The pollutants of concern are ammonia, BODE, cyanide, total phosphorus, total suspended solids,
aluminum, arsenic, cadmium, chromium, copper, lead, mercury, nickel, silver and zinc.
The sampling points are:
1. Combined influent ( prior to mixing with side streams).
2. Final effluent ( after de -chlorination).
3. Activated sludge basin
4. Land application of sludge
5. Significant industrial users.
The Pollutants of Concern (P.O.C.) are:
1. The pollutants of concern for the influent and effluent of the two plants are ammonia, BOD5,
.cyanide, total phosphorus, total suspended solids, aluminum, arsenic, cadmium, chromium, copper,
lead, mercury, molybdenum, nickel, selenium, silver and zinc.
2. The pollutants of concern for the activated sludge basin are ammonia, BOD5, cyanide, total
phosphorus, total suspended solids, aluminum, arsenic, cadmium, chromium, copper, lead, mercury,
nickel, silver and zinc.
3. The pollutants of concern for the land application of sludge per 40CFR503 are arsenic, cadmium,
chromium, copper, lead, mercury, molybdenum, nickel, magnesium, calcium, potassium, sodium,
aluminum, iron, manganese, selenium, zinc, percent solids, percent volatile solids, total kjeldahl
nitrogen, ammonia nitrogen, nitrates, nitrites, total phosphorus, sulfate and chloride.

ELPLeICION
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cgjM RI 114S SCKMATIC IS CJIE Or —SEiRAL u00ES
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Wastewater Treatment Plant I
Burf ngum Atamarr_ County
North Caroirci
..11.l•6.�..+� - ..-

PERMITTING STRATEGY AND SUMMARY OF PROPOSED CHANGES
The facility will be notified via cover letter of the Division's new action level policy for
copper and zinc. This letter will explain that under the new policy, a toxicity violation can
trigger a permit reopening the imposition of copper and zinc limits.
In addition, the facility is well aware that the permit may be reopened to include more
stringent nutrient limits in accordance with House Bill 515. Until completion of the Jordan Lake
modeling effort, however, no further action to place more stringent nutrient limits on Burlington
will be taken.
Due to the results of the reasonable potential analysis, cyanide will be limited in this
permit. Monthly monitoring will continue for copper, zinc, and silver, which are all action level
pollutants. The previous permit limited cadmium and lead, for which no reasonable potential
was demonstrated. Cadmium and lead are monitored through the Pretreatment Long Term
Monitoring Plan (LTMP), and so will be eliminated from the permit. Fluoride, chlorides and
aluminum will also be eliminated, since reasonable potential was not demonstrated.
The table below summarizes the changes made to the 2001 permit for Burlington East
WWTP:
Added to Permit Removed from Permit
Cover letter notification of new action Cadmium limit and monitoring
level policy for copper and zinc
Lead limit and monitoring
Condition added to instream monitoring Fluoride, chlorides and aluminum
.requirements stipulating that monitoring monitoring
need only be done if facility withdraws
from the Upper Cape Fear monitoring
coalition
All the other parameters will remain the same in accordance with the previous permit and
1995 WLA. In that (as well as the current) permit, BOD, Total Suspended Residue, NH3-N, fecal
coliform, total phosphorus, and cyanide were all water quality limited parameters.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: June 6, 2001
Permit Scheduled to Issue: July 23, 2001
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please contact
Natalie Sierra'at [phone] ext. 551.
Fuel Shect
NPDES Nt'0023876 Renewal
PaL,e

NAME: DATE: / oz
REGIONAL OFFICE COMMENTS
C�A
NAME: DATE:
f :1cI Y... ,
�� a

SUPERVISOR: k ' DATE:
Fact Sheet
NPDES NC0023E76 Renewal
Pays 5

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-- COW ►Fig JI,W HErt4 v;St-ZS
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Whole Effluent Toxicity Testing Self -Monitoring Summary April 19, 2001
FACILITY REQUIREMENT
YEAR JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Bryson City WWTP Perm chr lim: 0.25%
1997 Bl
-
-
Pass
---
--
NWPass
---
---
Pass
_
NCO026557/001 Begin:5/l/1998 Frequency: Q P/F + Jan Apr Jul Oct
+ NonComp:Single
1998 Pass
--
-
Pass
--
--
Late
Pass
--
Pass
--
-
County: Swain Region: ARO Subbasin: LTN02
1999 Pass
--
-
Pass
---
--
Pass
--
---
Pass
--
--
PF: 0.60 Special
2000 pass
---
---
NR
Pass
--
Pass
--
--
Pass
--
--
7Q10:365.0 IWC(%):0.253 Order:
2001 Pass
--
Buckeye Lumberton, Inc. Penn chr lim: 2.3%; if pf 4MGD chr lim 4.9a/
Y 1997 --
Pass
--
--
Pass
---
--
Pass
--
---
Pass
--
NC0005321/001 Begin:3/l/2000 Frequency:Q Feb May Aug Nov
+ NonComp:Single
1998 -
Late
Pass
--
Pass
---
--
Pass
--
---
Pass
--
County: Robeson Region: FRO Subbasin: LUM51
1999 --
Pass
--
--
Late
Bt
--
Pass
-
--
Pass
--
PF: 1.8 Special
2000 _-
Pass
--
--
Pass
---
--
Pass
--
--
Pass
--
7Q10:118.28 IWC(%):2.3 Order:
2001 --
Pass
Buies Creek WWTP Perm 24hr ac p/f lim: 90%
1997 Pass
--
--
Pass
--
--
Pass
---
---
Pass
---
--
NCO030091/001 Begin:5/1/1996 Frequency:Q + Jan Apr Jul Oct
NonComp: Single
1998 Pass
--
--
Pass
---
---
Pass,Pass
---
--
Pass
---
---
County: Harnett Region: FRO Subbasin: CPF07
1999 Fail,Pass
-
--
Pass
---
---
Pass
--
--
Pass
---
--
PF: 0.50 Special
2000 Pass
--
--
Pass
---
--
Pass
--
--
Pass
--
--
7Q10:600 IWC(%):0.13 Order:
2001 Pass
--
Buncombe County MSD Penn chr lim: 12 %
1997 Late
NRIPasst
-
--
Pass,Pass
--
--
Pass,Pass
--
--
Pass,Pass
--
NCO024911/001 Begm:2/1/2001 Frequency: Q Feb May Aug Nov
+ NonComp:Single
1998 -
Pass,Pass
--
--
P-Rass
---
--
Pass,Failt
--
--
Pass,pass
--
County: Buncombe Region: ARO Subbmin: FRB02
1999 -
Pass
--
--
Pass
--
--
Pass
--
---
Pass
--
PF: 40.0 Special
2000 -
Fail
33.9
33.9
>48
---
---
33.9
--
---
33.9
7QIO:466.0 IWC(%):12.0 Order:
2001 -
17
Bunn WWTP Penn chr lim: I1%
1997 Pass
--
Pass
---
--
Pass
-
--
Pass
--
---
Pass
NCO042269/001 Begin:11/1/2000 Frequency: Q Mar Jun Sep Dec
+ NonComp:Single
1998 -
--
Pass
--
--
Pass
--
--
Pass
--
--
Pass
County: Franklin Region: RRO Subbasin: TARO]
1999 -
--
Pass
--
--
Pass
-
--
Late
Pass
---
Pass
PF: 0.15 Special
2000 __
__
Pass
--
--
Pass
-
-
Fail
Pass
>100
>100
7Q10: 1.8 IWC(%):11 Order:
2001 --
--
Burgaw WWTP Penn chr lim: 90%
Y 1997 >100
--
-
63.6
>100
-
79.3
>100
--
>100
--
--
NCO021113/001 Begin:2/1/1996 Frequency: Q P/F + Jan Apr Jul Oct
NonComp: Single
1998 >100
-
-
>100
-
--
>100
---
--
94.8
---
--
County: Pender Region: WIRO Subbasin: CPF23
1999 >100
-
--
>100
--
-
>100
--
--
94.8
---
--
PF: 0.75 Special
2000 >100
-
--
>100
---
-
>100
--
--
>100
---
--
7Q10:0.0 IWC(%):100 order:
2001 >100
-
Burlington East WWTP Penn chr lim: 36%
Y 1997 --
Pass
---
--
Pass
-
--
Pass
--
--
Pass
--
NCO023868/001 Begin:4/l/1996 Frequency: Q P/F + Feb May Aug Nov
NonComp: SINGLE
1998 --
Pass
--
--
Pass
--
-
Pass
--
---
Pass
--
County: Alamance Region: WSRO Subbasm: CPF02
1999 --
Pass
Late
---
Pass
---
--
Pass
--
---
Pass
--
PF: 12.0 Special
2000 __
Pass
--
---
Pass
---
--
Pass
--
---
Pass
7QIO:33.6 IWC(%):36 Order:
2001 --
Pass
Burlington Ind. -Richmond Perm chr lim: 7%
1997 --
Pass
--
---
Pass
--
---
Pass
--
---
Pass
---
NCO043320/001 Begin:6/1/2000 Frequency: Q Feb May Aug Nov
+ NonComp: Single
1998 -
Pass
---
---
Pass
--
--
Pass
--
---
Pass
---
County: Richmond Region: FRO Subbasin: YAD16
1999 --
Pass
--
---
Pass
---
--
Pass
-
--
Pass
---
PF: 1.2 Special
2000 -
Pass
--
---
Pass
---
--
Pass
-
---
Pass
7Q10: 25.0 IWC(%):7.0 Order.
2001 -
Pass
Burlingtou-South WWTP Penn chr lim: 86%
Y 1997 82
72
>100
>100
--
--
Pass
--
-
Fail
Fail
Pass(s)
NCO023876/001 Begin:4/I/1996 Frequency: QP/F + Jan Apr Jul Oct
NonComp:Single
I Late
Pass
--
Pass
---
--
Pass
-
--
Pass
-
--
County: Alamance Region: WSRO Subbasin: CPF02
199 Fail
Pass
Pass
Pass,Fail
-
---
Pass
Pass
---
--
PF: 12.0 Special
2000 ail
>700
>100
Pass
--
--
Fail
>100
Pass
--
---
7QI0:3.0 IWC(%):86 Order:
2001 Pass
--
-
Burnsville W WTP Peron chr Ihn: 6%
Y 1997 -
--
Pass
--
--
Pass
--
--
Pass
---
---
Pass
NCO020290/001 Begin:2/l/1997 Frequency: Q P/F + Mar Jun Sep Dec
NonComp:Single
1998 --
--
Pass
--
--
Pass
-
--
Pass
--
---
Pass
County: Yancey Region: ARO Subbasin: FRB07
1999 --
--
NR/Pass
--
--
Fail
NR/Pass
--
Pass
--
---
Pass
PF: 0.8 Special
2000 _-
--
Pass
--
--
Pass
--
--
Pass
--
--
Pass
7Q10:19.0 IWC(%):6.0 Omer:
2001 --
--
Camden County Reverse Osmosis WTP Penn 24hr p/f ac monit 90% fthd (grab)
1997
NCO086681/001 Begin:2/1/2001 Frequency: Q P/F Jan Apr Jul Oct
+ NonComp:
1998
County: Camden Region: WARD Subbasin: PASSO
1999
PF: 0.432 Spacial
2000
7Q10: Tidal IWC(%):100 Order:
2001
Y Pre 1997 Data Available
LEGEND:
PERM = Permit Requirement LET = Administrative Letter - Target Frequency = Monitoring frequency: Q- Quarterly; M- Monthly; BM- Bimonthly; SA- Semiannually; A- Annually; OWD- Only when discharging; D- Discontinued monitoring requirement
Begin = First month required 7Q l0 = Receiving stream low flow criterion (cfs) += quarterly monitoring increases to monthly upon failure or NR Months that testing must occur - ex. Jan, Apr, Jul, Oct NonComp = Current Compliance Requirement
PF = Permitted flow (MGD) 1 WC% = Instream waste concentration P/F = Pus/Fail test AC = Acute CHR = Chronic
Data Notation: f - Fathead Minnow; • - Ceriodaphria sp.; my - Mysid shrimp; ChV - Chronic value; P - Mortality of stated percentage at highest concentration; at - Performed by DWQ Aquatic Tax Unit; bt - Bad test
Reporting Notation: -- = Data not required; NR - Not reported Facility Activity Status: I - Inactive, N - Newly Issued(To construct); H - Active but not discharging; f -More data available for month in question; • = ORC signature needed
6

05/07/2001 08:00 J367714630 DIV OF WATER QUALITY PAGE 01
NORTH CAROLINA
DEPARTMENT OF
ENVIRONMENT AND
NATURAL RESOURCES
FAX TRANSMITTAL.
Water Quality Section
Winston-Salem Regional Office
585 Waughtown Street
Winston-Salem, N.C. 27107
Phone: [phone] Fair: (336)7714630 .
TO: �V U J L�CC
FAX NUMBER.:
FROM: Mike 1Vlickey (mike.lxuakeyCncmail.net)
DATE:`1
Number of pages (including cover page):
COMNMNTS : . `'

•05/07/2001 08:00 3367714630 DIV OF WATER QUALITY
v
ciTyolF nrlin gton `"
Telephone (336j 2ZZ-5133 Fax [phone]
P.O. Box 1358
Burlington, N.C. 27216-1358
STEPHEN P_ SHOAF
MmECTOROFLTI MES
July 25, 2000
Mr. David A. Goodrich
t,jCDF_WRJDWQ/NPDES Permits Unit
1617 Mail Service Center
Raleigh, NC 27699-1617.
Re: NPDES Permit Renewal Application '
South Burlington VVVV"1'P, NPDES No. NCO023876
Burlington, Alanmce County
Dcar Mr. Goodrich:
PAGE 02
Ijilt! JUL 2 7 2%j30 1.
m1w (UAL17
P010 50URV URk•fH
The City of RurlinSton requests renewal of NPT)ES Permit No. NCO023876-
Enclosed are three (3) copies of the Standard Form A -Municipal NPDES permit
application -Major for the
f Burlington 00 toaco'ver the appi�tewater ca Treatment
oce slso ing fee,
is a check payable to N
If you. have questions concerning the application or need additional information,
please contact me at [phone].
Sincerely,
Stephen R. Sboaf
Director of Utilities
enclosures

•.05/07I2001 08:00' 3367714630 DIV OF WATER QUALITY PAGE 06
L PLANT PROCESS
originally constructed in 1964 as a 6 MGD plant, an upgrade in 1983 increased that capacity to 9.5
MGD. The plant now operates as a 12.0 MGD activated sludge system. It is located on SR2116 near the
community of:Swepsonville, about 3.5 miles south of I-85- The treated effluent discharges into Alamance
Creek, a tributary to the Haw River, in the Cape pear River Basin. A powdered activated cubon/carbon
regeneration system ("Zimpro" wet -air oxidation) has been abandoned due to poor treatment performance.
An upgrade completed in 1993 added biological nutrient removal; improved sludge handling; and
replaced the aeration system. Additional aeration and secondary clarifier capacity allowed an increased
capacity rating from 9.5 to 12 MGD.
A- The basic treatment process consists ofi
1. pretreatment - including coarse manual bar screen, grit removal, mechanical tar screen.
2, paw wastewater pumping, inn -line flow equalization.
3. Chemical addition for phosphorus precipitation.
4. Primary C112Ci&oall0n.
5. sidestream anoxic and anaerobic tankage for biological nutrient removal.
6. Activated sludge' aeration — including secondary Clarification and sludge recycling_
7. Tertiary filtration — including backwash storage and pumping-
8- Chlorination and non -potable water re -use, followed by de chlorinatiM
9. Primary sludge handling and disposal - including gravity thickening; dissolved air flotation;
aerobic digestion; time stabilization; and land application.
10- Secondary sludge is combined with primary sludge thickening and is treated the same way.
[nfluent flow is pumped to an equalization basin. Subsequent flow to the plant is controlled by the manual
or remote operation of a sluice gate to allow a pre -determined volume of water to exit from the basin.
This smoothing of the hydraulic load enhances plant performance and reliability.'.
After the equalizatiou basin, the wastewater flows to the primary clarif ers. The settleable solids are
pumped to the primary sludge thickener, and then pumped to the digesters for f iriber treatment.
Alternately, primary sludge can be returned to the main flow of the plant for additional food. Combined
primary and secondary sludge is land -applied as liquid sludge -
The primary effluent then flows to the biological outrient removal (BNR) tanks for contact with return or
recycle sludge. Under some flow patterns, the primary effluent may bypass the BNR tanks. Following the
BNR tanks are two (2) aeration basins where oxygen is added and the mixed liquor is kept in suspension
using }et aeration. The effluent then goes to five (5) final clarifiers where the activated sludge seftles.
The activated sludge from the -final clarifiers is const=tly returmi+d ahead of the aeration basin by means
of pumps in three (3) sludge recirculation pump stations.
South a1zlingtva WV fp, Boy Wood Rd., Crraham, NPDES No. NCO=976

-•.05/07/2001 08:00 3367714630 DIV OF WATER QUALITY PAGE 07
H, DESIGN C ERIA
©
Average Flow
- 12 MGD
(D
Peak plow
- 13 MGD
Q
Population Served in Year 2000
- 48,000
0
Biochemical Oxygen Demand (130D)
- 300 mg/L
(D
Total Suspended Solids (TSS)
- 150 mg/L
(D
pH
- 6-9
a)
Receiving Stream
- Great Alatnance Creek
1.
Pre-treatment
A. Burlington Plow
(1) Screens
(a) Manual Bar ScTeen
Width
- 4$"
Spacing
- 2.5"
(b) Mechanical Bar Screen
Width
- 48"
Spacing
- 11..
(2) Degritter - Grit Chwnbcr with Screw
(3) Parshall Flume
(4) Raw Sewage Pumps
Number
- 4
"M
- 870
Horsepower
- 125
flow
- 4,300 GPM .
Head
- 85 feet
S. Swepsonville Flow
(1) Bar Screen
(2) Parsball Flume
C. Equalization Basin
(1) Capacity
- 3.5 million gallons
(2) Aerators
- 5 at 40 BP
(3) Effluent Control
- Sluice Gate
2,
1prim9rY Treatment
A. Primary Clarifiers
(1) Number
2
(2) Diameter
- feet
(3) Depth
- 12.5 feet
12
(4) Weir Length
- 29$ feet
(5) Total Surface Area
- 7,OSS square feet
(6) Total Volume
- 83,562 cubic feet
(7)Weir overflow hates
- 20,134 GPD per foot
(8) Surface Settling Rate
- 946 GPD per square foot
(9) Hydraulic Detention Time
- 2.6 hours
South Bwungton WW p, goy Wood Rd., Graham, NPDES No. NCO023876

••05/07/2001 08:00 3367714630 DIV OF WATER QUALITY PAGE 08
IT.
DESIGN CRITERIA
(continued)
3, Clsemieal SteraZe and Feed Sim
A. Bulls Stor®ge Tardm
(1) Alum Tanks -
2
(2) Liquid Caustic Tanks -
1
(3) Capacity per tack -
15,000 gallons
(4) Diameter. -
12 feet
($) Height -
19 feet
B. Day 'tanks
(1) Alum Tank -
1
(2) Liquid Caustic TanX$ -
1
(3) Capacity per tank -
1,000 gallons
(4) Diameter -
-
5.5 feet
6 {set
(5)14eight
C. Chemical Feed Pumps
-
2 at 120 gallons per how'
(1) Alum Pumps
(2) Caustic Feed Pumps -
2 at 30 gallons per hour
4. Seeonda Trmstmeat
A. Biolbgioal phosphurus Removal Tank
(1) Number
- 2 (8 cells each)
- 32 feet x 32 feet x 20 75 feet SWD per cell
(2) Dimensions
(3) Capacity (Gallons)
- 155,100 per cell
(4) Detention Time
- 19 minutes per cell
- 16 at 20 horsepower per ce11(jek Pod)
(5) Mixers
(6) Recycle Pumps
- 4 at 5,250 GPM each
(7) Recycle Flaw Meter
Ultrasonic
1 Submersible 300 GPM
(9) Drain Pump
-
B. Aeration 132sins (2 basins)
92
(1) Basin
01
4 4
(a) Numbef of Cells
(b) Capacity (million gallons)
2.7 1.7
(c) Length (feet)
185 120
30
(d) Width (feet)
2915
16
(e) Depth (feet)
16.5
(2) Dckntion Tit=
- 6 hours
(3) glowerg
- 6 at 125 horsepower
and 2,800 cubic feet per minute each
South BurlingtOR INWTP. BOY Wood PA, Graham, i4mVIS No. NCO023976

BACKWASH
—
_ —
WATER
I
ANAEROBIC &KWIC
AERAU011
SEC04DARY
TAMS rAtIKS
IA ZKS
CLARIFIERS
SkfPSC ALE
I
AUT
INFLUENT
NIXED IJOUDR
RECYCLE FOR
I RER1Ni1
CEMTRIFICATION
I
RETURN ACT_
BURUNGTOH
IERUENT BAR GfJT EOUALIIATION
PRWARY
L — _ — _ —
SLUDGE
SCREEN CHAMBER BASH
CtATIIFIERS
VIASTE A+CTIVATEO
I
SLUDGE EO DAF
BLOYERS
t
----
AIR
—_--------�
L--,
ANAiR0f3`C At10X1C
AERATIO(i
SECONDARY
o
TANKS TATIKS
TANKS
CLARIFIERS
I
�
{
MIKD UQUCR
RECYCLE FOR
t
41.
I RETURN
DENITRIFICATION
t
L — — — — _ —
RETURN ACEVAIED SLUDGE
WASTE ACTIVkTED
E
SLUDGE
I
I
I
I I I
OAF AERATED SLLIUGE I AEflOEC�
-I
THICKMR HOLDING TANK
DIGESTERS
I
L--------------�
t;IME STABIU2EDSLUDI
SUPERNATANT
STABILIZATION HOLDING IA.NK
Eff-L -
1. THE BIOLOGICAL HUIRIENT REMOVAL (BUR) PROCESS
SH0M IN THIS SCHEMATIC IS ONE OF SEVERAL MCOES
IN *jcH THE PLANT MAY BE OPERATED. OTHER MODES
OF OPEaTION MAY INCLUDE OTHER ERR PROCESSES
No ,ORE CURRENTLY IH USf. ELLEGENTHE?LANT HAS CAPAfsdW1Y FOR CHWICAt PHOSPHOROUSR£NDjAL IMTB ALUM AHD pHAOJUSIMENT VAINCAUSTIC. mlttealt flpBf8liDn
Ct1LMICALS CAN BE ADDED AT VARIOUS LOCA110I15
IIr, 1HE PLANU
South Burlington W WTP, Boy Woad Rd., Graham, NPUES No. NC0023876
SVLfUR DIOXIDE
ADDITION FOR
CHLORINE DECHLORINARON
FINAL CHLORNE MAN[
EFFLUENT CORK DISCHAM
FILTERS TANK
IRE5IDUALS TO I
tAND APPLICAIHIN
sdarratic of Wastewater ROW
South 6uTlia&A
Wastewater Treatment Plant
lludrLgtom, Mmance C=tY
North Caroline
Just I992

05/07/2001 08:00 3367714630 DIV OF WATER QUALITY PAGE 11
AT,s�•1
NCDENR
NORTH—CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
South Burlington WWTP Sludge Management Plan
for NPDES Permit Application No. NC 0023876
JAMES B. HUNT JR.
GOVERNOR
The South Burlington WWTP method of disposing of treatment plant sludge
(biosolids) satisfies the requirements of the 40 CFR 503 regulations. The treatment plant
operates a land application sludge management program under non -discharge permit
BILL HOLMAN number WQ0000520 issued by NC;DENR/DWQ to the City of Burlington.
SECRETARY
1-he sludge management program includes disposal of both primary and secondary
sludge (approximately 18,000,000 gallons 41 1999). The treatment plant has the ability to
KERR T. STEVE4hcken the sludge by gravity or by using a dissolved air floatation (DAF) unit. Thickened
DIRECTOR ply and secondary sludge are combined and held in aerated storage prior to
stabilization. As space becomes available, this thickened sludge is transferred to lime
stabilization contact tanks for stabilization with hydrated lime to pH 12 for > 2 hours and
} pil 11.5 for the remainder of the 24 hours. This sludge is then stored and maintained at
PH 11.0 or higher until it can be applied to farmland_
The South plant .4go has aerobic digestion as an alternate stabilization method.
This method is utilized during the warmer months of the year when temperatures are
appropriate- Testing is performed to assure that the biosolids meet the pathogen reduction
and vector attraction reduction requirements prior to land application.
Land application as a liquid sludge from either stabilization process is by surface
spray or subsurface injection. The City has permitted over 2700 acres for the sludge
management ProgramThe City contracts with a biosolids management company to
perform the site applications and assist with record keeping and reporting, Annual reports
are submitted to the USEPA and the NCDENR.
Future plans are to construct a composting facility to combine yard waste and
treatment plant solids and produce a Class A product. This facility is being designed to
handle up to forty percent (40%) of our current biosolids production.
South Burlington WWTP. Boy Wood Rd., Graham., NC NPDES No, NCO023876
19,c
trv; An+6 RtGA-
2 0 1 0
1617 MAIL SERVICE CENTER. RALEIGH, NORTH CAROLINA 27699-1617
website: h2o.enr.state.nc.us PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST -CONSUMER PAPER

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr.. Governor
Bill Holman. Secretary
Kerr T. Stevens, Director
September 22, 2000
Mr. Steve Shoaf
City of Burlington
P.O. Box 1358
Burlington, NC 27215
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
Permit NCO023876
South Side WWTP
Alamance County
Dear Mr. Shoaf:
The Division is beginning the cycle of permit renewals for the Cape Fear river basin. An examination of the Cape
Fear basin plan and the NPDES permit schedule has revealed that the existing expiration dates in Cape Fear NPDES
permits do not coincide with the revised permit expiration dates for the basin. This discrepancy could create unnecessary
delays in the processing of over 200 permit renewals. Accordingly, the Division is changing the permit expiration dates for
NPDES permits in the Cape Fear river basin.
This permit modification changes the expiration date of the subject permit in subbasin 30602 to May 31, 2001. Please
find enclosed the revised permit cover page. Insert the new cover page into your permit and discard the old page. All
other terms and conditions contained in the original permit remain unchanged and in full effect. This permit modification
is issued under the requirements of North Carolina General Statutes 143-215.1 and the Memorandum of Agreement
between North Carolina and the U. S. Environmental Protection Agency.
In accordance with the modification of the permit expiration date, the new due date for your renewal application is
December 2, 2000. Renewal application forms will be sent to you approximately 6-8 weeks in advance of the new due
date or you may download the forms from the NPDES web site at http://h2o.enr.state.nc.us/NPDES/documents.htrnl.
You will need to download Standard Form A. If you have already submitted a permit renewal form, there is no need to
submit any other forms to the Division; the application will be processed during the renewal period for your subbasin.
If any part of this permit modification are unacceptable to you, you have the right to an adjudicatory hearing upon
written request within thirty (30) days following receipt of this letter. This request must be a written petition conforming
to Chapter 150B of the North Carolina General Statutes, filed with the Office of Administrative Hearings (6714 Mail
Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
If you have any questions concerning this permit modification, please contact Natalie Sierra at [phone],
extension 551.
Sincerely,
��.0�
Kerr T. Stevens
cc: Central Files
Winston-Salem Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer VISIT US ON THE INTERNET Utz http://h2o.enr.state.nc.us/NPDES

Permit NC0023876,
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-2IS. 1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
City of Burlington
is hereby authorized to discharge wastewater from a facility located at the
South Side WWTP
2471 Boy Wood Road
Graham
Alamance County
to receiving waters designated as Big Alamance Creek in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective September 1, 2000.
This permit and authorization to discharge shall expire at midnight on May 31, 2001.
Signed this day September 22, 2000.
Kerr T. Stevens, Ifirector
Division of Water Quality
By Authority of the Environmental Management Commission

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Stephen R. Shoaf
City of Burlington
P.O. Box 1358
Burlington, North Carolina 27216
Dear Mr. Shoaf:
ffl�.�TA
IT
Sam
E:)EHNF40
September 17, 1997
Subject: NPDES Permit Modifications
NPDES Permit No. NCO023868
East Burlington V%iWTP
rmit No. NCO023876
South Burlington WWTP
Alamance County
Personnel from the City of Graham contacted the NPDES Unit to notify us that orthophosphate sampling
was no longer being conducted at their facility pursuant to a Memorandum of Understanding (MOU) with the
City of Burlington. The MOU for Instream sampling was finalized with the help of Division personnel in
March, 1996. These permit modifications are being issued to formally confirm the deletion of orthophosphate
sampling requirements from the subject permits.
Please find enclosed the amended Effluent Limitations pages and Instream Monitoring Requirements (Part
III, Condition G.) for each facility. These pages should be inserted into the respective permits. The old pages
should be discarded. All other terms and conditions contained in the original permits remain unchanged and in
full effect. These permit modifications are issued pursuant to the requirements of North Carolina General
Statutes 143-215.1 and the Memorandum of Agreement between North Carolina and the U. S. Environmental
Protection Agency.
If any parts, measurement frequencies or sampling requirements contained in these permit modifications are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days
following receipt of this letter. This request must be a written petition conforming to Chapter 150B of the
North Carolina General Statutes, filed with the Office of Administrative Hearings, Post Office Drawer 27447,
Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision shall be final and binding.
If you have any questions concerning these permit modifications, please contact Charles Weaver at
telephone number [phone], extension 511.
cc. Central Files
Winston-Salem Regional Office,
NPDES Unit
Aquatic Toxicology Unit
Sin erely, _W
Preston Howard, Jr., P.E.
Water Quality Section
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS .3 Permit No. NCO023876 a'
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such
discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT.. CHARACTERISTICS"`
'LIMIT
MONITORING REQUIREMENT'S .
Monthly
Weekl
Daihy -
Measurement,
Sample
Sample
Average
Average
Maximum.
. -
FrequericY
TYp:e..
on' 0
L eati
Flow
12.0 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C2 Aril 1 - October 31
9.0 mg/I
13.5 mg/I
Daily
Composite
I, E
BOD, 5 day, 20°C2 November 1 - March 1
18.0 mg/I .
27.0 mg/I
Daily
Composite
I, E
Total Suspended Residue2
30.0 mg/I
45.0 mg/I
Daily
Composite
I, E
NH3 as N (April 1 - October 31)
3.0 mg/I
Daily
Composite
E
NH3 as N (November 1 - March 1)
6.0 mg/I
Daily
Composite
E
Dissolved Oxygen3
Daily
Grab
E, U, D
Fecal Coliform(geometric mean
200 /100 ml
400 / 100 ml
Daily
Grab
E, U, D
Total Residual Chlorine
Daily
Grab
E
Temperature
Daily
Grab
E, U, D
Total Nitrogen (NO2+NO3+TKN)
Monthly
Composite
E
Total Phos horus4
2.0 mg/I
Weekly
Composite
E, U, D
Chronic Toxicit 5
Quarterly
Composite
E
Conductivit 6
6
Grab
E, U, D
Cadmium
2.3 /I
5.4 /I
Weekly
Composite
E
Lead
29.0 /I
41.0 /1
Weekly
Composite
E
Cyanide
5.8 q1l
20.0 /I
Weekly
Grab
E
Copper
Quarterly
Composite
E
Zinc
Monthly
Composite
E
Fluoride
Quarterly
Composite
E El
SilverQuarterlyComposite
E
Chlorides
MonthlyCom
osite
E
Aluminum
Quarterly
Composite
E
1 V V'L1 LV LI.J. ,
1 Sample locations: E - Effluent; I - Influent; U - Upstream; D - Downstream. For instream monitoring requirements, see Part III, Condition G.
2 The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal).
3 The daily dissolvedoxygen effluent concentration shall not be less than 6.0 mg/l.
4 Compliance shall be based upon a quarterly average of weekly samples.
5 Chronic Toxicity (Cerodaphnia) P/F at 86% - January, April, July & October (see Part III, Condition H.).
6 Conductivity samples shall be collected three times per week during June, July, August & September and once per week in the other months of the year.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Part III
Permit No. NCO023876
G. INSTREAM MONITORING REQUIREMENTS
PARAMETERS TO BE SAMPLED
Parameter
Sample Type Frequency
Dissolved Oxygen
Grab
3/week (June -September)
1 /week (October -May)
Fecal Coliform
Grab
3/week (June- September)
1/week (October -May)
Temperature
Grab
3/week (June -September)
1/week (October -May).
Conductivity
Grab
3/week (June -September)
1 /week (October -May)
Total Phosphorus
Grab
3/week (June -September)
1 /week (October -May)
SAMPLE LOCATIONS
1. Upstream at NC Highway 87
2. Downstream at:
• . Boys Woods Road (NCSR 2116);
• Saxapahaw Lake - above the dam (sampling at this point shall not be required
if the river flow is greater than 350 cfs at USGS gauge 02096500);
• NCSR 1005.
All instream samples shall be grab samples.
REPORTING REQUIREMENTS
Data entered on a form approved by the Division and summarized in an annual report
due by January 1st of the year immediately following the summer period when sampling
occurred.
Yearly monitoring reports shall be sent to:
NC DEHNR / DWQ
Modelling / TMDL Unit
P.O. Box 29535
Raleigh, NC 27626-0535
modified 9-97

i .'
State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt. Jr.. Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Steve Shoaf
City of Burlington
Post Office Box 1358
Burlington, North Carolina 27216
Dear Mr. Shoaf:
,* /•
•
� F= F1
October 8, 1996
Subject: NPDES Permit Modification
NPDES No. NCO023868
City of Burlington -East WWTP
NPDES No. NCO023876
City of Burlington -South WWTP
Alamance County
On February 19, 1996, the Division of Environmental Management issued NPDES
Permit No. NCO023868 to City of Burlington - East WWTP and Permit No. NCO023876 to
City of Burlington -South WWTP. A review of the permit files have indicated that a few
errors were inadvertently made in the permit. Accordingly, we are forwarding herewith
modifications to the subject permit to correct the errors.
Specifically, the following corrections have been made to the NPDES Permit No.
NCO023868 for the City of Burlington - East WWTP:
1) On the Effluent and Limitations and Monitoring Requirements Summer sheet, the Total
Phosphorus and Orthophosphate sample types will be changed from grab to composite, and
2) On the Effluent and Limitations and Monitoring Requirements Winter sheet, the BOD, 5-
day, and Total Suspended Residue daily maximum limits have been changed to weekly
averages.
In addition, the following correction has been made to the NPDES Permit_No.
NCO023876 for the City of Burlington - South WWTP: the Conductivity measurement
frequency has been changed from daily to three times a week (3/week) during June, July,
August, and September and once a week (1 /week) during the remainder of the year. A
footnote has also been added to explain the monitoring frequency.
The three changes referenced in this letter also eliminate inconsistencies between the
East and South wastewater treatment facilities' discharge permits.
Please find enclosed the modified sections of the permit referenced in the preceding paragraph.
Replace the original sections in your permit with the newer enclosed sections and discard the
original sections. All other terms and conditions contained in the original permit remain unchanged
and in full effect. These permit modifications are issued pursuant to the requirements of North
Carolina General Statutes 143-215.1 and the Memorandum of Agreement between North Carolina
and the U. S. Environmental Protection Agency.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Mr. Steve Shoaf
October 8, 1996
Page 2
If any parts, measurement frequencies or sampling requirements contained in this permit
modification are unacceptable to you, you have the right to an adjudicatory hearing upon written
request within thirty (30) days following receipt of this letter. This request must be in the form of a
written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina
27611-7447. Unless such demand is made, this decision shall be final and binding.
If you have any questions concerning these permit modifications, please contact Paul B. Clark
at telephone number [phone], extension 580.
Sincerely,
f l �i
Preston Howard, Jr., P.E.
cc: Central Files
Winston-Salem Regional Office, Water Quality Section
Permits and Engineering Unit
Facility Assessment Unit

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Permit No. NCO023876
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below:
Effluent Characteristics Discharge Limitations_ Monitoring Requirements
Measurement Sample Sample
Monthly Avg. Weekly Avg. Daily Max. Frequency Type Location 1
Flow 12.0 MGD Continuous Recording I or E
BOD, 5-Day, 20°C 2 (April 1 - October 31) 9.0 mg/l
BOD, 5-Day, 20°C 2 (November I -March 31) l 8.0 mg/l
Total Suspended Residue 2
30.0 mg/l
NH3 as N (April 1 - October 31)
3.0 mg/l
NH3 as N (November 1 - March 31)
6.0 mg/l
Dissolved Oxygen 3
Fecal Coliform (geometric mean)
200/100 ml
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
2.0 mg/14
_01h
Chronic Toxicity 6
Conductivity 7
Footnotes:
13.5 mg/l
Daily
Composite
E, I
27.0 tng/I
Daily
Composite
E, I
45.0 mg/l
Daily
Composite
E, I
Daily
Composite
E
Daily
Composite
E
Daily
Grab
E, U,
D
400/ 100 nil
Daily
Grab
E, U,
D
Daily
Grab
E
Daily
Grab
E, U,
D
Monthly
Composite
E
Monthly
Composite
E, U,
D
Quarterly
Composite
E
3/week
Grab
E, U,
D
I Sample locations: E - Effluent, I - Influent, U - Upstream, D - Downstream. For instream monitoring requirements, see Part III,
Condition G.
2 The monthly average effluent BOD5 and total suspended residue concentrations shall not exceed 15% of the respective influent value.
3 The daily average dissolved oxygen effluent concentrations shall not be less than 6.0 mg/l.
4 Sampling shall be based upon a quarterly average of weekly sampling.
5 Effluent analysis for Orthophosphate is only required during the months of June, July, August, and September.
6 Chronic Toxicity (Ceriodaphnia) P/F at 86%. Sathples shall be taken quarterly during the months of January, April, July, and October; See Part III,
Condition H.
7 Conductivity monitoring will be required 3/week during June, July, August, and September and once/week for the remainder of the year.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Continued)
Effluent Characteristics
Cadmium
Lead
Cyanide
Copper
Zinc
Fluoride
Silver
Chlorides
Aluminum
Footnotes (Continued):
Discharge Limitations:_
Monthly Avg. Weekly Avg. Daily Max.
2.3 µg/I 5.4 µ g/1
29.0 µ.g/I 41.0 µg/I
5.8 µg/l 20.0 µg/1
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Permit No. NC0023876
Monitorine Requirements
Measurement
Sample
Sample
Frequency
Tyne
L6cation 1
Weekly
Composite..
E
Weekly
Composite
E
Weekly
Grab
E
Quarterly
Composite
E
Monthly
Composite
E
Quarterly
Composite
E
Quarterly
Composite
E
Monthly
Composite
E
Quarterly
Composite
E