NC0020354_Permit (Issuance)_20011228

NPDES DOCUHENT :MCANNINO COVER SHEET
NPDES Permit:
NC0020354
Pittsboro WWTP
Document Type:
Permit Issuances
�'�-Y'"r:stFfMSP•.y'.l}MIMMMAI iV.�
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Denial
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
December 28, 2001
This document is printed on reuse paper - ignore any
content on the " ew-erse side

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
Mr. Hugh Montgomery, Town Manager
Town of Pittsboro
P.O. Box 759
Pittsboro, North Carolina 27312
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
December 28, 2001
Subject: NPDES Permit Issuance
Pittsboro WWTP
Permit No. NC0020354
Chatham County
Dear Mr. Montgomery:
In accordance with the application for discharge permit, the Division is forwarding
herewith the subject NPDES permit. This permit is issued pursuant to the requirements of North
Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina
and the U.S. Environmental Protection Agency dated May 9, 1994.
The Division is in receipt of your comments on the draft permit and offers the following
comments in return:
• Temperature: The daily monitoring required by the permit is intended for the effluent only.
Instream monitoring is required 3/Week during June, July, August, and September, and once
per week during the remainder of the year (specified in footnote 1).
• Nickel: In order to allow the Town time to re-evaluate its changing pretreatment facilities, the
Division will allow the Town to monitor nickel monthly for one year after the effective date of
the permit (through January 31, 2003). The nickel limit will become effective February 1,
2003. The monitoring frequency at that time will be weekly (the draft permit inadvertently
stipulated 2/month). After a minimum of 10-12 data points (over at least a 10 month period)
have been collected, Pittsboro may request that the Division re-evaluate the nickel data to
determine if the limit can be eliminated. The Division recommends (but will not require) that
Pittsboro conduct more frequent monitoring than monthly monitoring in order to have a larger
data base to evaluate.
• Nutrients: As stated in the cover letter to the draft permit, Roberson Creek is listed as partially
supporting and not supporting its designated uses on North Carolina's 303 (d) list. The 303(d)
list is mandated by the Clean Water Act and requires states to list any impaired water, then
develop a management strategy to restore the waterbody to its designated use. One of the
water quality parameters affected on Roberson Creek is chlorophyll a, a measurement of algal
activity that responds to excess nutrients (phosphorus and nitrogen). Information is currently
being obtained by the Division in order to develop a management strategy (or total maximum
daily load - TMDL) for Roberson Creek.
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617 - TELEPHONE [phone]/FAX [phone]
AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/ 1 0% POST -CONSUMER PAPER
VISIT US ON THE WEB AT http://h20.enr.State.nc.us/NPDES

Mr. Montgomery
Page 2
Nutrients (continued)
Additionally, House Bill 515, passed during the 1997 session, specifies an average annual
mass load limit for total nitrogen and/or phosphorus, if one or both of these nutrients are
deemed to be a parameter of concern. Senate Bill 1366 was also passed in 1997, which
allowed an extension date for compliance with nitrogen and phosphorus discharge limits until
such time that a calibrated nutrient response model was developed. The Town of Pittsboro is a
member of the Jordan Lake Coalition, which has proposed a schedule to comply with the
stipulations of Senate Bill 1366 and is not currently required to meet nutrient limits.
For this permit renewal, no changes will be made with regard to nutrients, with the exception
of an increase in monitoring frequency for total nitrogen (weekly monitoring will be required
with this renewal). A special condition has been placed in the permit noting that the Division
may revise the permit based on the outcome of the Jordan Lake Coalition modeling effort.
However, as also stated in the speculative letter, any potential expansion of the treatment
plant will be affected by both the waterbody impairment and House Bill 515.
Although not required as part of this permit, the Division encourages Pittsboro to gather total
phosphorus and total nitrogen data upstream of the discharge. Because the Town is a
member of the Upper Cape Fear Basin Association, no upstream data is collected at this time.
This information may better assist the Town and the Division of any nutrient impacts directly
attributable to the Town.
• Chlorine: A footnote has been added to the permit stating that total residual chlorine must be
monitored if chlorine is used as a disinfectant or elsewhere in the process.
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, Mail Service Center 6714, Raleigh, North Carolina
27699-6714. Unless such a demand is made, this permit shall be final and binding.
Please take notice that this permit is not transferable except after notice to the Division of
Water Quality. The Division of Water Quality 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, the Division of Land Resources, the Coastal Area Management Act, or
any other federal or local governmental permit.
If you have any questions regarding the NPDES permit, please contact Susan Wilson at
(919) 733 - 5083, extension 510.
Sincerely,
Original Signed By
David A. Goodrich
Gregory J. Thorpe
cc: Raleigh Regional Office/Water Quality Section
Central Files
Point Source Compliance and Enforcement Unit
NPDES Unit
Aquatic Toxicology Unit

Permit NC0020354
Permit No. NC0020354
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELINIINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Water Quality Commission, and the Federal
Water Pollution Control Act, as amended,
Town of Pittsboro
is hereby authorized to discharge wastewater from a facility located at
Pittsboro Wastewater Treatment Plant
Off Small Street Extension
Chatham County
to receiving waters designated as Roberson Creek in the Cape Fear River Basin
in accordance with the discharge limitations, monitoring requirements, and other conditions set forth in Parts
I, II, III, and IV hereof.
This permit shall become effective February 1, 2002.
This permit and the authorization to discharge shall expire at midnight on April 30, 2006.
Signed this day December 28, 2001.
Original Signed By
David A. Goodrich
Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
By the Authority of the Environmental Management Commission
Pittsboro WWI?
NPDES No. NC0020354

Permit NC0020354 ,
SUPPLEMENT TO PERMIT COVER SHEET
The Town of Pittsboro is hereby authorized to:
1. Continue to operate an existing 0.75 MGD extended aeration wastewater treatment system
consisting of the following components:
• Manual and mechanical barscreen
• Diffused aeration basins
• Clarifiers
• Phosphorus removal
• High -rate sand filters
• Sludge thickening
• Aerobic sludge digestion
• UV disinfection,
• Effluent flow measurement
• Cascade post -aeration
The facility is located at the Pittsboro WWTP on the Small Street Extension southeast of Pittsboro
in Chatham County.
2. Discharge from said treatment works at the location specified on the attached map into Roberson
Creek, classified WS-IV NSW waters in the Cape Fear River Basin.
Pittsboro WWTP
NPDES No. NC0020354

Latitude• 35°42'46" Suh-Basin; 03-OS-04
Longitudm 79°10' 12"
0ilad #; E22NW, Pittsbaro
Stream Class• W5-IV, N5W
Readming, tream: Roberson Creek, Cape Fear River Basin
Permitted Flo►r. 0.75 MGD
Fitts boro WWTP
N00020354

Permit NC0020354
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
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
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Measurement
Frequency
Sample Type
Sample Locations
Flow
0.75 MGD
Continuous
Instantaneous
Influent or Effluent
BOD, 5 day (209C)2
[Apr. 1 — Oct. 31]
5.0 mg/1
7.5 mg/I
3/Week
Composite
Influent & Effluent
BOD, 5 day (20°C)2
[Nov. 1 — Mar. 31]
10.0 mg/I
15.0 mg/I
3/Week
Composite
Influent & Effluent
Total Suspended Residue2
30.0 mgll
45.0 mg/I
3/Week
Composite
Influent & Effluent
NH3 as N
2.0 mg/I
3/Week
Composite
Effluent
Dissolved 0xygen3
3NVeek
Grab
Effluent,
Upstream & Downstream
Fecal Coliform (geometric mean)
200/100 ml
400/100 mi
3/Week
Grab
Effluent,
Upstream & Downstream
Total Residual Chlorine?
3/Week
Grab
Effluent
Temperature
Daily
Grab
Effluent
Temperature
3/Week
Grab
Upstream & Downstream
Total Nitrogen (NO2+NO3+TKN)
Weekly
Composite
Effluent
Total Phosphorus4
2.0 mg/I
(Qtrly Avg)
Weekly
Composite
Effluent
Conductivity
3/Week
Grab
Effluent
Upstream & Downstream
Chronic Toxicity5
Quarterly
Composite
Effluent
pH6
3/Week
Grab
Effluent
Copper
Monthly
Composite
Effluent
Nickel
[Feb. 1, 2002 through Jan. 31,
2003]
Monthly
Composite
Effluent
Nickel
[February 1, 2003 through
expiration]
25 ug/I
(Weekly
avg.)
261 ugll
(Daily
max)
Weekly
Composite
Effluent
Zinc
Monthly
Composite
Effluent
Footnotes on following page
Pittsboro WWTP
NPDES No. NC0020354

Permit NC0020354
Footnotes:
1. Sample locations: Upstream = at least 100 yards above the outfall; Downstream = at least 100
yards downstream from the outfall. Instream monitoring shah be conducted 3/Week during June,
July, August, and September, and once per week during the remainder of the year. Instream
monitoring is provisionally waived in light of the permittee's participation in Upper Cape
Fear River Basin Association. Instream monitoring shall be conducted as stated in this
permit should the permittee end its participation in the Association.
2. The monthly average BODS and Total Suspended Residue concentrations shall not exceed 15% of
the respective influent value (85% removal).
3. The daily dissolved oxygen effluent concentration shall not be less than 6.0 mg/1.
4. Compliance shall be based on a quarterly average of weekly samples. Also see Special Condition
A.(3). regarding nutrients (especially nitrogen).
5. Chronic Toxicity (Ceriodaphnia) P]at 90%; March, June, September & December (see Condition
A.(2.)).
6. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be
monitored three times per week at the effluent by grab sample.
7. Total residual chlorine shall be monitored if chlorine is added as a disinfectant or used elsewhere
in the process.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A (2). CHRONIC TOXICITY PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality
to Ceriodaphnia dubia at an effluent concentration of 90%.
The permit holder shall perform at a minimum, auarteriu monitoring using test procedures outlined in the
"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent
versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February
1998) or subsequent versions. The tests will be performed during the months of March, June, September,
and December. Effluent sampling for this testing shall be performed at the NPDES permitted final effluent
discharge below all treatment processes.
If 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 II 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
Pittsboro WWTP
NPDES No. NC0020354

Permit NC0020354
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.
A. (3.) NUTRIENT LIMITS SPECIAL CONDITION
Limits on total nitrogen have not been included at this time because the facility is participating in the
Lake Jordan Coalition. If compliance with any element of this strategy, or subsequent approved
revisions to the strategy is not maintained, the Division reserves the right to reopen this permit to
include nitrogen limits. If requirements other than those listed in this NPDES permit are adopted as
part the results of the Jordan Lake model, the Division reserves the right to reopen this permit to
include these requirements.
Pittsboro WWTP
NPDES No. NC0020354

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0020354, Pittsboro WWTP
Facility Information
Applicant/Facility Name:
Town of Pittsboro/ Pittsboro WWTP
Applicant Address:
P.O. Box 759 (635 East Street), Pittsboro, NC 27312
Facility Address:
Small St. Exit, Pittsboro
Permitted Flow
0.75 MGD
Type of Waste:
4
100% Domestic
Facility/Permit Status:
Renewal
County:
Chatham
Miscellaneous
Receiving Stream:
Roberson Creek
(or Robeson)
Regional Office:
RRO
Stream Classification:
WS-IV NSW
Quad
E22NW, Pittsb ro
303(d) Listed?:
Yes
Permit Writer:
S. Wilson , f p(Qn
Subbasin:
030604
Date:
June 27, 2001
Drainage Area (mi2):
10
...",
)
Summer 7Q10 (cfs)
0
30Q2 = 0.6
Winter 7Q10 (cfs):
0.4
Average Flow (cfs):
11
IWC (%):
100
Primary SIC Code:
4952
SUMMARY
The Town of Pittsboro currently has the capacity to operate the treatment plant at 0. 75 MGD.
Annual average monthly flow is below that, at 0.358 MGD. This facility is 100% domestic with
no pretreatment program.
The discharge goes into Robeson Creek (a tributary to Jordan Lake). Robeson Creek is listed as
partially supporting and not supporting its designated uses on NC's 303 (d) list. One of the
water quality parameters affected on Robeson Creek is chlorophyll -a, a measurement of algal
activity which responds to excess nutrients. A TMDL is being developed for this creek.
In addition, both HB 515 and SB 1366 passed in 1997 will affect Pittsboro's future
requirements with regard to nutrients. SB 1366 allowed an extension date for compliance with
nitrogen and phosphorus discharge limits until such time that a calibrated nutrient response
model was developed. Pittsboro is a member of the Jordan Lake Coalition, which has proposed
a schedule to comply with SB 1366, and is not required to meet nutrient limits at this time.
Pittsboro is under a self-imposed moratorium on large subdivisions to allow the Town time to
formulate a plan for upgrading the treatment plant. The Town requested speculative limits
(received April 4, 2000) for expansion up to 3 MGD. The Division stated that nutrient loading
must be held constant in Robeson Creek due to the 303 (d) listing (and HB515); the Division
also offered some options to the Town to meet the nutrient limits (at constant nutrient loading,
the proposed nutrient limits may be beyond the current limits of technology). At this time,
Pittsboro is still trying to find options for expansion.
TOXICITY TESTING:
Current Requirement:Chronic P/F ® 90% (Mar, Jun, Sep, Dec)
The Town has had no toxicity failures since March 1999.
Pittsboro WWTP
NPDES Renewal
Page 1

r
r
COMPLIANCE SUMMARY: BASED ON THE PREVIOUS 2 YEARS
Per the computer printout, the Town has had periodic noncompliant instances for BOD5 and
fecal coliform. The problem does not appear to be chronic and no adverse comments regarding
operation at the facility were noted in the staff report.
The facility has had 7 "monthly" civil penalty assessments in the past 3 years.
INSTREAM MONITORING: Pittsboro is part of the Upper Cape Fear River Basin Association
and is not required to perform localized monitoring. A station still exists on Roberson Creek,
however, due to its 303d listing (chlorophyll a violations have been documented, which
prompted the 303d listing) .
It may be advantageous to Pittsboro to perform some upstream nutrient monitoring and this
will be suggested in the cover letter to the draft permit.
There appears to be different sources for the creek name. Pittsboro folks call it Roberson, but
USGS lists as Robeson.
TOXICANT ANALYSIS: Pittsboro has a modified pretreatment program with data results from
the short term monitoring plan. A reasonable potential analysis (RPA) was conducted based on
this data (the data is from 1997-1998, so the data may not be reflective of this year - the
facility will be allowed the opportunity for comment with the draft permit).
See below for recommendations on metals monitoring/limits.
PROPOSED CHANGES:
Copper and zinc monitoring will be recommended (both are action levels). Since Pittsboro has a
good compliance record with regarding to toxicity testing, monthly monitoring will be
recommended. Based on the RPA analysis, a Nickel limit will be recommended (Nickel standard
is 25 ug/l, due to the WS classification).
NUTRIENTS:
As discussed in the summary, nutrients will not be limited at this time - due to SB 1366. The
Division is in the process of collecting data to develop a TMDL for the creek. Total nitrogen
monitoring will be increased to weekly. A special condition will be placed in the permit
discussing the nutrient issue and possible re -opening of the permit. Also, the cover letter to
the draft permit will discuss the various Bills that affect Pittsboro, as well as the chlor a
impairment and 303d listing.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: July 18, 2001 (est.)
Permit Scheduled to Issue: September 3, 2001 (est.)
STATE CONTACT:
If you have any questions on any of the above information or on the attached permit, please
contact Susan Wilson at [phone] ext. 510.
REGIONAL OFFICE COMMENT:
NAME: DATE:
Pittsboro WWTP
NPDES Renewal
Page 2

AFFIDAVIT OF PUBLICATION
NORTH CAROLINA.
Wake County. ) Ss.
C STATE OF PUBLNORTH CAROLINA
ENVIRONmeNerAL MANAGEMENT
COMMISSiOhVNPDES UNIT
1617 MAIL SERVICE CENTER
, NC NOTIFICATI GHOFI INTENT TO ISiSUE A NPDES
WASTEWATER PERMIT
On the basis of thorough Staff review and application of NC'
General Statute 143.2T. Public low 95-500 and other lawful
standards and regulations, the North Carolina Environmental
Management Commission proposes to issue a National Pollutant
Discharge Elimination System (NPOESI wastewater discharge
Permit to the persons) listed below effective 45 days from the
publish dale of this notice.
Written comments regarding ilie proposed permit wilt beaccept-
ed until 30 days after the publish dale.of this notice. All comments
received prior to that date are cansidered'In the final determi-
nations regarding the proposed permit. The Director of the NC
Divisionof Water Quality may decide to holder public meeting for
the proposed permit shauld.fhe Division receive a significant
degree of public Interest:. Copies of the draft permit and other supportjng information on
the sed to determine conditions Present in the draft permit are
available upon request and payment Of the costs of reproduction.
Mail comments and/or: requests for information to the NC
Christie sionJ Jackson at (919) 73.3ty -558 3 extensioe n 388. Please include
the NPDES permit number (bftached)•in any communication.
Interested
gtthe 7018otnQtua52 N. SaliisuStret, Raleigh, NC 26414beweethe hors
at 8:00 a.m. and 5:00 p.m. to review information on .file.
NPDES Permit Number'NCl 1'Nesfle Resins Corporation,
790 Corinth Road, Monctre, NC 27559 has appliedtor a permit
renewal for a facility located In Chathein-CpatDtty. discharging
treated wastewater into Haw River in. ihe Cdpe1Fear River
Basin. currently 80D5 and TSS are water qualify limited. This
discharge may affect future allocations in this portion of the
receiving stream.
NPDES Permit NumberN0i2O Town of Pittsboro, Pitfsbara
Wastewater Treatment Plant, P.O. Box 754, Pitlsboro, NC 27312
has applied fora permit renewal for afacility located in Chatham
Cauntydischarging treated municipal wastewater into Roberson
Creek in the Cape Fear River Basin. Currently0OD5, ammonia,
D-0., • phosr horns, fecal coliform, and nicker are water qualify
limited. This discharge may affect future allocations in this
portion-ofthe receiving stream.
NP
it Number NC00115502, Eastern Fuels,
Cox DServicemCenter), P.O. Box 1386, Ahosk e, NC l27910 has
applied fora permit renewal fora facility locate(' in Hyde County
discharging treated wastewater into an unnamed tributary to
Par Creek in the Tar -Pamlico River Basin. Currently tolueneand
benzene are water quality limited. This discharge may affect
future allocations in this portion of the receiving stream.
N&0: July 14, 2001
Before the undersigned, a Notary Public of Johnston
County North Carolina, duly commissioned and authorized to
administer oaths, affirmations, etc., personally appeared
Barbara Brown, who, being duly sworn or affirmed, according
to law, doth'depose and say that she is Billing Manager -Legal
Advertising of THE NEWS AND OBSERVER PUBLISHING
COMPANY a corporation organized and doing business
under the Laws of the State of North Carolina, and publishing
a newspaper known as THE NEWS AND OBSERVER, in the
City of Raleigh, County and State aforesaid, the said
newspaper in which such notice, paper, document, or legal
advertisement was published was, at the time of each and
every such publication, a newspaper meeting all of the
requirements and qualifications of Section 1-597 of the
General Statutes of North Carolina and was a qualified
newspaper within the meaning of Section 1-597 of the
General Statutes of North Carolina, and that as such she
makes this affidavit; that she is familiar with the books, files
and business of said corporation and by reference to the files
of said publication the attached advertisement for DEHNR
was inserted in the aforesaid newspaper on dates as follows:
07/14/01
Account Number: 73350832
The above is correctly copied from the books and files of the aforesaid Corporation and publication.
Billing Manager -Legal Advertising
Sworn or affirmed to, and subscribed before me, this
16 day of JULY , 2001 AD
In Testimony Whereof, I have hereunto set my hand
and affixed my official seal, the day and year aforesaid.
,1/7,41)1\-
Notary Public
My commission expires 2nd day of July 2005.

TOWN OF
CHARLES R. DEVINNEY
Mayor
HUGH R. MONTGOMERY
Town Manager
PAUL S. MESSICK, JR.
Town Attorney
P.O. Box 759 — 635 East Street
PITTSBORO. N.C. 27312
TO: David Goodrich
Supervisor,NPDES Group
FROM: The Town of Pittsboro
SUBJECT: NPDES Draft Permit
Pittsboro WWTP
Permit# NC00203354
Chatham Co.
Mr.Goodrich,
The Town of Pittsboro would like this opportunity to address the metals
portion of this draft permit. At this time the only pretreatment discharge that
the WWTP is receiving is from HydroTube South permit#0001and the total
flow from their phosphate system is less than 10,000 gallons a month which is
then combined with a total influent treated at the WWTP that is averaging
8.157 million gallons a month which should further dilute any nickel present
to very low levels coming into the plant. Also ,HydroTube South has notified
the Town that it is in the process of selling it's phosphate system and when/if
that sell is completed they will no longer need a pretreatment discharge
permit.
In light of the above information the Town of Pittsboro respectfully
request that no limit on nickel be placed on the permit at this time and that
sampling for this parameter be changed from twice a month to once a month
which would be the same as the testing requirements for copper and zinc The
Town of Pittsboro realizes that the sampling results could lead to limits being
added to it's discharge permit of any or all three of these parameters. We
would also request that the up and downstream daily temperature be changed
to three times a week in conjunction with our other stream sampling. Thank
you for your considerations in this matter.
As submitted,
BOARD OF COMMISIONERS
GENE BROOKS
MAX G. COTTEN
CASSIE H. WASKO
EHTEL F. BURNS
CLINTON E. BRYAN, JR.
TELEPHONE
[phone]
FAX [phone]
ORC,TP
CHARTERED 1787

Pittsboro's draft permit
Subject: Pittsboro's draft permit
Date: Mon, 23 Jul 2001 15:19:42 -0400
From: Kristie Robeson <[e-mail]>
To: Susan A Wilson <[e-mail]>
Hey Susan.
Just reviewed this one and probably need to change the sample type for
tox on the limits page to composite. Other than that, looks good.
Thanks.
1 of 1 7/23/01 3:46 PM

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Kerr T. Stevens. Director
MEMORANDUM
To:
From:
Subject:
July 11, 2001
Michael Douglas
NC DENR / DEH / Regional Engineer
Raleigh Regional Office
David Goodrich
NPDES Unit
Review of Draft NPDES Permit NC0020354
Pittsboro WWTP
Chatham County
AVA
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Please indicate below your agency's position or viewpoint on the draft permit and return this form by August 3,
2001. If you have any questions on the draft permit, please contact me at the telephone number or e-mail address
listed at the bottom of this page.
RESPONSE: (Check one)
rd/
Concur with the issuance of this permit provided the facility is operated and maintained properly, the stated effluent limits
are met prior to discharge, and the discharge does not contravene the designated water quality standards.
Signed
Concurs with issuance of the above permit, provided the following conditions are met:
Opposes the issuance of the above permit, based on reasons stated below, or attached:
Date: / / I G / o
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 919 733-5083, extension 511 (fax) 919 733-0719
Visrr us ON THE INTERNET @ http://h2o.enr.state.nc.us/NPDES Charles.Weaver@ ncmail.net

r x.
r'6v-Fi 7-r1?6�'a
PLIANCE SUMMARY: BASED ON THE PREVIOUS 2 YEARS
Per the computer printout, the Town has had periodic noncompliant instances for BOD5 and
fecal coliform. The problem does not appear to be chronic and no adverse comments regarding
operation at the facility were noted in the staff report.
The facility has had 7 "monthly" civil penalty assessments in the past 3 years.
INSTREAM MONITORING: Pittsboro is part of the Upper Cape Fear River Basin Association
and is not required to perform localized monitoring. A station still exists on Roberson Creek.
however, due to its 303d listing (chlorophyll a violations have been documented, which
prompted the 303d listing).
It may be advantageous to Pittsboro to perform some upstream nutrient monitoring and this
will be suggested in the cover letter to the draft permit.
There appears to be different sources for the creek name. Pittsboro folks call it Roberson, but
USGS lists as Robeson.
TOXICANT ANALYSIS: Pittsboro has a modified pretreatment program with data results from
the short term monitoring plan. A .reasonable potential analysis (RPA) was conducted based on
this data (the data is from 1997-1998, so the data may not be reflective of this year - the
facility will be allowed the opportunity for comment with the draft permit).
See below for recommendations on metals monitoring/limits.
PROPOSED CHANGES:
Copper and zinc monitoring will be recommended (both are action levels). Since Pittsboro has a
good compliance record with regarding to toxicity testing, monthly monitoring will be
recommended. Based on the RPA analysis, a Nickel limit will be recommended (Nickel standard
is 25 ug/1, due to the WS classification).
NUTRIENTS:
As discussed in the summary, nutrients will not be limited at this time - due to SB 1366. The
Division is in the process of collecting data to develop a TMDL for the creek. Total nitrogen
monitoring will be increased to weekly. A special condition will be placed in the permit
discussing the nutrient issue and possible re -opening of the permit. Also, the cover letter to
the draft permit will discuss the various Bills that affect Pittsboro, as well as the chlor a
impairment and 303d listing.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: July 18, 2001 (est.)
Permit Scheduled to Issue: September 3, 2001 (est.)
STATE CONTACT:
If you have any questions on any of the above information or on the a
contact Susan Wilson at [phone] ext. 510.
REGIONAL OFFICE COMMENT:
//& Gd/127tc-5.
Zob Ala- u rn.-,
NA\1E: - :17 DATE: 7- 3 -
d permit, please
1
Pittsboro WWTP
NPDES Renewal

06/27/01 Enforcement Cases against Town of Pittsboro
Facility Date Penalty Investigative
Case Number Number Violator County assessed assessed costs
LM 98- 006 Nc0020354 Pittsboro, Town-wwtp Chatham 7/22/1998 $16,502.50 $492.93
LM 98- 017 Nc0020354 Pittsboro, Town-wwtp Chatham 7/29/1998 $125.00 $45.80
LV 99- 354 Nc0020354 Pittsboro, Town-wwtp Chatham 9/3/1999 $1,000.00 $53.08
LV 99- 368 Nc0020354 Pittsboro, Town-wwtp Chatham 11/2/1999 $1,500.00 $47.73
LV 00- 041 Nc0020354 Pittsboro, Town-wwtp Chatham 4/3/2000 $1,250.00 $29.96
LV 00- 270 Nc0020354 Pittsboro, Town-wwtp Chatham 7/25/2000 $2,750.00 $47.73
LV 00- 342 Nc0020354 Pittsboro, Town-wwtp Chatham 8/18/2000 $2,000.00 $47.73
Date Remission
requested considered Case heard Sent to
remission by Director by EMC collection
8/21/1998 12/8/1998
Total paid
to Date ** Case cGosed
$16,391.68 02/15/99
9/22/1998 12/8/1998 01/11/99
$1,053.08 10/13/99
$1,547.73 12/10/99
$1,279.96 05/12/00
9/5/2000 10/4/2000 $2,797.73 11/22/00
9/5/2000 10/4/2000 $2,047.73 11/22/00
Total Cases: 7
Total Assessed: $25,127.50 $764.96 $25,892.46
** Some facilities may be submitting payments according to an agreed upon payment plan
•
•Nonst�•b •f•tal. o : a lication for-. ermtt CD Disc ar e.:afte .:lest n•at on CF: :lillilifui .or: lnteritiot at
..:
wittia�ut a> errrsR . 'DP::: 0 orgta -Treat er►t=. - Qrics.....� ��ayei`
� ....::. �.....:.:.:.:...,:.: � ... m .... W w e
esignateE an operator in charge
Total paid: $25,117.91
sir ction Violations, DD dischar while- 4 ei
:WO Water Quality Vlolatior . OV Failure

Toxicant Analysis
Facility Name
Pittsboro
ParameF
""" I r
Pa
NPDES #
NC0020354
Standard =1 25
NgA 6
Qw(MGD)
0.75
7Q10s (cfs)
0
I n BDL=1/2DLActual
Data RESULTS
IWC (%)
100.00
1 5
5 Std De_v. 1.283881478
c'ving Stream
Roberson Creek
2 5
5 Mean 3.571428571
Stream Class
WS IV, NSW
3 5
5 C.V. 0.359486814
4 5
5
FINAL RESULTS
5 5
5
Pb
_
6 5
5
Mult Factor
1.9
Max. Pred Cw 9.5
ugf
7
2.5
<5
Max. Value
5 trgf
Allowable Cw 25.0
ug)
8
2.51 <5
Max. Pred I
9.5
pgf
Max. Value 5
9
2.5 <5
Allowable C
25.00
pg/
NI
10
2.5
<5
Max. Pred Cw 41.4
ugf
11
2.5
<5
Allowable Cw 25.0
ugf
12
2.5
<5
• Max. Value] 18
13
2.5
<5
Cu 1
14
2.5
<5
Max. Pred CwI 112.8
ugf
15
Allowable Cw 7.0
ugA
16
Max. Value i 47
17
Zn
18
Max. Pred Cw 271.4
ug/I 19
-
Allowable Cw i 50.0
ugA. 20 4
Max. Value. 118
21
Ag
22
Max. Pred Cw 2.5
ug/I 23 _ _ .
Allowable Cw 0.06
Max. Value 2.5
ug/1 24
25 I
26.
to
(199 7 - T1Arrit)
FRoM S TM
6/27/01
1

Toxicant Analysis
rameter = Ni
tandard =
25
mgfl
Parameter = Cu
Standard =
n3DL=1/2D1 Actual Data ,RESULTS
1. 11 11 Std Dev.
2
4.095025
13 13 Mean
8
3 10 10 C.V.
0.511878
4 18 18
5 10 10
61 10 10 Mult Factor 2.31
7 5 <10 Max. Value 18 pg/I
8 5 <10 Max. Pred 0 41.4 pg/1
9 5 _ <10 Allowable C 25.001pg/I
10 5 <10
11 5 <10
12 5 <10
13 5 <10
14, 5 <10
.-1
7
n 3DL=1/2DI
1 21
2 11
3 _ 47
4 19
5 22
6 23
7 5
8 2.5
9 18
10 18
11 _ 16
12. 26
13
14, 28
29
rittsboro IvWI P
p9/I
Actual Data RESULTS
21 Std Dev.
11 Mean
10.951
20.393
47 C.V. 0.537
19
22
23 Mult Factor= 2.4
<10 Max. Value
<5 Max. Pred C1n
18
18
16
26
29
28
Allowable Cw
47 p9/[i
112.8 pg/t
7.00
Parameter = Zn
Standard =
50
p9il
n 3DL=1/2D1 Actual Data
1 68 68
2 118 118
3 47 47
4 69 69
5 36 36
6 17 17 Mult Facto,
7 24 24 Max. Value
8 23
9 39 39
RESULTS
Std Dev. 28.7832
Mean 56.1538
C.V. 0.51258
2.3
23 Max. Pred
10
11
12
13
64
78
63
84
64
78
63
84
Allowable C
118
271.4
50.00
p9A
p9A
p9A
6/27/01
2

toxicant Analysis
Parameter =
Ag
rittsbc
ro won r
Standard =
0.06
pgll
{ n}DL=1/2DiActual
Data
RESULTS
1
2.5
<5
Std Dev.
0
2
2.5
<5
Mean
2.5
3
2.5
<5
C.V.
0
4
2.5
<5
5
2.5
<5
Mult Factor
1
Max. Value
2.5
pg/l
Max. Pred i
2.5
pg/l
Allowable C
0.06
pg/l
—1.
.
r
1
6/27/01 3

UCPF Statons http:l/www.esb.enr.state.nc.us/Coalitions/ucfraa.htt
Upper Cape Fear River Basin Association
Facility
City of Asheboro WWTP
Burlington East WWTP
Burlington South WWTP
South Durham WRF
Durham County Triangle WWTP
!Glen Raven Mills
[ -old Kist, Inc.
Graham WWTP
County
Randolph
Alamance
Alamance
Durham
Region
;1_WSRO
WSRO
IL SRO
RRO
!Greensboro N. Buffalo WWTP
Durham I RRO
Alamance
!Lee
I�WSRO
jFRO
Alamance
L SRO
[Greensboro T.Z. Osborne WWTP
Guilford
WSRO
Guilford
WSRO
High Point -East Side WWTP
Honeywell
Mebane WWTP
Guilford
Chatham
Alamance
Neste Resins Corporation
Chatham
WSRO
LSO
LWSRO
[RRO
Orange Water and Sewer Authority -Mason Farm WWTP
Orange
RRO
Pittsboro WWTP
Chatham
RRO
Ramseur WWTP
Randleman WWTP
[Reidsville WWTP
Randolph
WSRO
Randolph
Rockingham
WSRO
WSRO
[Sanford WWTP
S
iler City WWTP
!Star WWTP
Lee
Chatham
FRO
RRO
!Montgomery FRO
Monitoring Locations
(Map stations your interested in by linking to the US Census TIGER MAP Service -
Enter lat/long with longitude as a negative number)
ISTORET# Station Location
B0070010 Troublesome Cr @ US 29 bus
B0050000 Haw R CO US 29 bus (0209331280)
B0170000 Haw R @ SR 2620 (High Rock Rd.)
B0400000 Reedy Fork @ SR 2719
County 1Region Latitude (Longitude;
Rockingham [SRO ( 361636 793900'
Rockingham ;ITN —SRO 361555 793853i
Rockingham [RO 361504 793353
Guilford WSRO
361042.
7930151
B0480050 N Buffalo Creek @ N Buffalo Ck at influent conduit pier
B0540050
[B0690000
B0750000.
Guilford
WSRO
360634
7944531
N Buffalo Cr @ Huffine Mill Road
Guilford
WSRO
360747
7939471
S Buffalo Cr @ Old US Hwy 70 (McConnell Rd.)
S Buffalo Cr @ SR 2821(Harvest Rd.) (02095091)
Guilford
WSRO
360522!
7941181
Guilford
WSRO
3606451 7940201
1 of 3 6/13/01 2:55 PM

UCRF Statons http://www.esb.cnr,state.nc.us/Coalitions/ucfrba.hti
B0870000 (Haw River @ SR 1530 (Gerringer Mill Rd.)
Moadams Creek @ unimproved road upstream of
B1350000 discharge (Corrigdor Rd.)
B1380000 Moadams Creek @ SR1940 (Gibson Rd.)
B1440000 Haw River @ SR 2158 (Swepsonville Rd.)
B1200000 Haw River @ Hwy 54
Alamance WSRO 1 3608011 792802
_I Alamance
7 Alamance
Alamance
WSRO
I[WSRO
WSRO
B1940000 Big Alamance Cr @ Hwy 87
Alamance
Alamance
WSRO
WSRO
360518
791705
3605181 791830
3601331 792205
360253 792202
Big Alamance Cr @ SR 2116 (Preacher Holmes
B1960000 Rd.)(02096813)
B2000000 Haw R @ SR 1005 (Saxapahaw Rd.)(02096879)
B2210000 Haw R @ US 64
IAlamance
Alamance
Chatham
WSRO
3601261 792340
r-
360103I 792257
WSRO
RRO
B2450000
Robeson Creek @ SR 1943 (Gum Springs Ch. Rd)
(02097189)
B3020000
B3040000
Chatham
IO
3553421 791530
354353 790625
354210 790613
New Hope Cr below waterfowl impoundment dam -need to
get access from WWTP Durham
New Hope Cr @ SR 1107 (02097314) (Stagecoach Road) (Durham
B3300000 [Northeast Cr @ SR 1102 (Sedwick Road)
B3670000 [Northeast Cr @ SR 1731 (0 Kelly Church Road)
B3025000] Third Fork Creek @ Hwy 54
Morgan Cr @ at bridge of WWTP entrance-upstrm. site in
permit j
B3899180
B3900000
B4080000
B6050000
B4380000
Morgan Cr @ SR 1726 (Farrington Rd.)(02097521)
Haw R @ SR 1011 (old US 1)
Deep R nr Moncure-RR trestle (02102049)
Richland Creek @ SR 1154
B4350000
Deep R @ SR 1113
B4440000
Deep R @ SR 1129
B4626000
Muddy Cr @ Cedar Square Rd -SR 1929
Durham
Chatham
Durham
Orange
Chatham
Chatham
Chatham
Guilford
—11Guilford
(Guilford
Randolph
Hasketts Creek 800 feet above the discharge at existing
B48700001 upstream site J
RRO 355418 785813
RRO F 355305 [ 785758
RRO j 355312I 785400
RRO i 355121I 785625
355506[ 785718
RRO
RRO
RRO
RRO
RRO
WSRO
WSRO
WSRO
355357
355138
353658
353655
790134
790037
790326
790500
355620
795452
355732
355616
795424
795325.
Randolph
B4780000'IDeep River @ SR 2117, near Randleman J Randolph
134800000 rDeep R @ SR 2128, near Worthville (WOW Road) —I Randolph
B4920000
Deep River @ SR 2261 near Central Falls (Old Liberty
Road)
B5070000
Deep R @ SR 2615 (USGS gage) (0210050)
B5100000'Deep R @ SR 2628 (Hinshaw Town Road)
B5520000 jDeep R @ NC 22, High Falls (0210102530)
B5410000 Cotton Cr @ SR 1370 (Leach Rd.) culvert
B5575000 Deep R above Carbonton Dam @ Hwy 42
B5685000 Deep R nr Cumnock sample@Deep River Park Bridge
B5820000 Deep R @ US 15/501 (02101577)
Randolph
Randolph
Randolph
Moore
Montgomery
Chatham
WSRO 355229
LWSRPJ_354553
WSRO 354548
WSRO jL 354807!
354547
WSRO L 354410
WSRO 354340
795240
794711
794746
794638
794622
794104
793910
FRO
352841
793115
FRO
352314
794415
RRO
'Chatham IRRO
(Lee FRO
[B5950000 Rocky R @ US 64 [Chatham i
1135980000 [Rocky R @ SR 2170 (Reeves Chapel Road) [Chatham
RRO
RRO j
353110j 792157
353332 791437.
353442 r 791140
354407 792529
354157I 792235
2 of 3 6/13/01 2:55 PM

UCFRBA SUMMARY REPORT
SEPTEMBER 2000
First Sampling
Station Ref #
c
H
m
m
ST
ORET Station ID
0
0
MPERATURE (degrees C)
00010)
!TURBIDITY (NTU) (00076)
SPECIFIC COND.
(umhos/cm 0) (00095)
DISSOLVED 02 (mg/L)
(00300)
0
0
M
v
a
TSS (mg/L) (00530)
AMMONIA NITROGEN
(mg/L) (00610)
TKN (mg/L) (00625)
NITRATE/NITRITE (mg/L)
(00630)
PHOSPHOROUS,TOT (mg/L)
(00665)
ARSENIC, TOTAL (ug/L)
(01002)
CADMIUM, TOTAL (ug/L)
(01027)
CHROMIUM, TOTAL (ug/L)
(01034)
COPPER, TOTAL (ug/L)
(01042)
IRON, TOTAL (ug/L) (01045)
LEAD, TOTAL (ug/L) (01051)
MANGANESE, TOTL (ug/L)
(01055)
NICKEL, TOTAL (ug/L)
(01067)
ZINC, TOTAL.(ug/L) (01092d
ALUMINUM, TOTAL (ug/L)
(01105)
ECAL COLIFORM (CFU/100
L) (31613)
CHLOROPHYLL A (mg/m3)
(32209)
ERCURY, TOTAL (ug/L)
71900)
23
5
83025000
9/06/00
19.9
38
162.1
6.31
7.38
19
U*
U*
U*
0.22
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2.9
7
2200
3.7
4
12
1400
770
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9/06/00
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* Unreportable Page 2 of 2

UCFRBA SUMMARY REPORT
SEPTEMBER 2000
First Sampling
it
15
C
O
0
vl
0
c
q
D
m
j
a9
STORET Station ID
m
D
8
TEMPERATURE (degrees C) I
(00010)
TURBIDITY (NTU) (00076)
SPECIFIC COND.
(umhos/cm 0) (00095)
DISSOLVED 02 (mg/L)
(00300)
s
0
0
u>
v
m
a
TSS (mg/L) (00530)
AMMONIA NITROGEN
(mg/L) (00610)
TKN (mg/L) (00625)
NITRATE/NITRITE (mg/L)
(00630)
PHOSPHOROUS,TOT (mg/L)
(00665)
ARSENIC, TOTAL (ug/L)
(01002)
CADMIUM, TOTAL (ug/L)
(01027)
CHROMIUM, TOTAL (ug/L)
(01034)
COPPER, TOTAL (ug/L)
(01042)
IRON, TOTAL (ug/L) (01045)
LEAD, TOTAL (ug/L) (01051)
MANGANESE, TOTL (ug/L)
(01055)
NICKEL, TOTAL (ug/L)
(01067)
ZINC, TOTAL (ug/L) (01092)
ALUMINUM, TOTAL (ug/L)
(01105)
FECAL COLIFORM (CFU/100
mL) (31613)
CHLOROPHYLL A (mg/m3)
(32209)
MERCURY, TOTAL (ug/L)
(71900)
1
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Unreportable Page 1 of 2

UCFRBA SUMMARY REPORT
AUGUST 2000
Second Sampling
Station Ref #
c
0 •AI
CO
Cr)
ORET Station ID
m
0
TEMPERATURE (degrees C)
(00010)
1TURBIDITY (NTU) (00076)
SPECIFIC COND.
(umhos/cm ®) (00095)
DISSOLVED 02 (mg/L)
(00300)
o
R
-
CO
v
d
ITSS (mg/L) (00530)
AMMONIA NITROGE (mg/L)
(00610)
TKN (mg/L) (00625)
1
Di
E
A
Y
2
C
g e
PHOSPHOROUS,TOT (mg/L)
(00665)
ARSENIC, TOTAL (ug/L)
(01002)
CADMIUM, TOTAL (ug/L)
(01027)
CHROMIUM, TOTAL (ug/L)
(01034)
COPPER, TOTAL (ug/L)
(01042)
IRON, TOTAL (ug/L) (01045)
LEAD, TOTAL (ug/L) (01051)
MANGANESE, TOTL (ug/L)
(01055)
NICKEL, TOTAL (ug/L)
(01067)
k.INCJ0TAI. (ug/L) (01092)
LUMINUM, TOTAL (ug/L)
01105)
ECAL COLIFORM (CFU/100
L) (31613)
CHLOROPHYLL A (mg/m3)
(32209)
MERCURY, TOTAL (ug/L)
(71900)
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8/23/00 24.8
126.3
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Page2of2

UCFRBA SUMMARY REPORT
AUGUST 2000
Second Sampling
21
B0050000
CD
8/17/00
U
a)
a)
m
a)
w
Q _
Lai
0
w 00
22.1
TURBIDITY (NTU) (00076)
97.9
6.26
0
0 O
O
3
a
7.28
TSS (mg/L) (00530)
0)
52
72
$£{�<7�Gilii3s>
B0480050
... .........
B0690000
ra
LEAD, TOTAL (ug/L) (01051)
J
0)
O
J
w
U
Z
n
'o
0
0
ZINC, TOTAL (ug/L) (01092)
ID
0
0
8/17/00 24.4
.................
8/17/00 23.1
681.0
102.2
5.54
6.12
7.50
7.21
92
B0870000
8/17/00 23.1
395.8
6.60
7.54
..........................
132
61200000
153
..6660
B1960000
8/17/00 26.1
8/17/00 27.8
8/21/00 22.5
598.0
442.4
290.1
6.98
6.70
5.59
7.59
7.34
7.10
195
B3020000
a41
8/21/00 21.1
150.9
6.16
7.31
21 5
B3300000
13;3�Z7<
8/21/00 22.7
211.3
4.66
7.26
Page 1 of 2

D W Q Pretreatment Group's
Headworks Analysis (HWA) Data Summary
for
Page 1 of 4
6/19/01, 1:54 PM
pittsboro,data.98.selected.for.npdes.renewal.xls
Below Detection Limit Data (BDL) are marked < anc
INFLUENT
CONC.
BOD
EFFLUENT
BOD
INFLUENT
CONC.
TSS
EFFLUENT
TSS
INFLUENT
CONC.
Ammonia
EFFLUENT
Ammonia
INFLUENT
CONC.
Phosphorus
EFFLUENT
Phosphorus
SAMPLE
DATE
(mg/1)
(mg/1)
(mg/1)
(mg/1)
(mg/1)
(mg/1)
(mg/1)
(mg/1)
7/3/97
0.04
3.05
1.86
7/10/97
0.19
3.8
2.58
7/18/97
1.54
2.25
2.25
7/25/97
_
0.04
1.83
0.85
7/28/97
7.43
3.05
7/29/97
10.8
0.04
3.8
1.97
7/30/97
9.75
0.1
4.46
7/31/97
4.34
1.83
8/4/97
67
1
13
1
6.72
0.1
2.87
8/8/97
225
1.8
174
1
1.87
9/5/97
130
1.8
137
1
18.84
0.04
3.87
2.32
9/12/97
110
1.1
45
10
8.93
0.04
1.76
1.63
10/22/97
190
3.2
162
1
6.92
0.14
5.16
1.46
11/14/97
185
2.9
110
1.5
0.26
0.17
4.08
__._2.08
12/11/97
180
3.3
106
4.8
9.06
0.16
3.82
0__ 1.92
1/23/98
120
49
126
16.6
5.74
1.98
2
5.16
2/ 13/98
185
20
16
28
8.02
3.24
10.1
1.04
3/13/98
200
6.1
195
2.5
3.75
0.27
4.53
0.95
4/16/98
275
59
362
58
13.6
7.58
3.26
2.19
5/15/98
120
3.6
44
3.2
9.04
< 0.04
3.29
1.06
6/3/98
155
3.5
607
<
1
5.36
1.13
2.53
1.75
7/15/98
230
<
1
284
1.6
11.18
0.04
5.24
2.57
8/6/98
_ 200
3.4
137
<
1
10.4
< 0.04
3.59
1.71
9/3/98
235
2.8
171
<
1
19.78
< 0.04
5.09
1.4
11/9/98
_
11/10/98
11/11/98
,
11/12/98
175.4375
10.2188
168.0625
8.3250
8.9432
0.8076
3.7070
1.9310
MAXIMUM =
275
59
607
58
19.78
7.58
10.1
5.16
MINIMUM =
67
1
13
1
0.26
0.04
1.76
0.85
LBS/DAY =
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
REMOVAL RATE =
94.18
LITERATURE RR =
REMOVAL RATE =
95.05
LITERATURE RR =
REMOVAL RATE =
90.97
LITERATURE RR =
REMOVAL RATE =
47.91
LITERATURE RR =

D W Q Pretreatment Group's
Headworks Analysis (HWA) Data Summary
for
d value entered is 1/2 the detection limit
Page 2 of 4
6/19/01, 1:54 PM
pittsboro,data.98.selected.for.npdes.renewal.xls
INFLUENT
CONC.
Arsenic
EFFLUENT
Arsenic
INFLUENT
CONC.
cadmium
EFFLUENT
cadmium
INFLUENT
CONC.
Chromium
EFFLUENT
Chromium
INFLUENT
CONC.
Copper
EFFLUENT
Copper
INFLUENT
CONC.
Cyanide
EFFLUENT
Cyanide
SAMPLE
DATE
(mg/1)
(mg/1)
(mg/1)
(mg/1)
(mg/1)
(mg/1)
(mg/1)
(mg/I)
(mg/I)
(mg/1)
7/3/97
7/10/97
7/18/97
7/25/97
7/28/97
7/29/97
7/30/97
7/31/97
8/4/97
8/8/97
9/5/97
<
0.001
<
0.001
<
0.005
<
0.005
0.037
0.021
9/12/97
<
0.001
<
0.001
<
0.005
<
0.005
0.036
• 0.011
10/22/97
<
0.001
<
0.001
<
0.005
<
0.005
0.052
0.047
11/14/97
<
0.001
<
0.001
<
0.005
<
0.005
0.075
0.019
12/11/97
<
0.001
<
0.001
<
0.005
<
0.005
0.019
0.022
1/23/98
<
0.001
<
0.001
<
0.005
<
0.005
0.017
0.023
2/13/98
<
0.001
<
0.001
<
0.005
<
0.005
0.013
< 0.01
3/13/98
<
0.001
<
0.001
<
0.005
<
0.005
< 0.005
< 0.005
4/16/98
<
0.001
<
0.001
<
0.005
<
0.005
0.039
0.018
5/15/98
<
0.001
<
0.001
<
0.005
<
0.005
0.028
0.018
<
0.005
<
0.005
6/3/98
<
0.005
<
0.005
<
0.001
<
0.001
<
0.005
<
0.005
0.031
0.016
<
0.005
<
0.005
7/15/98
<
0.005
<
0.005
<
0.001
<
0.001
<
0.005
<
0.005
0.142
0.026
<
0.005
<
0.005
8/6/98
<
0.005
<
0.005
<
0.001
<
0.001
<
0.005
<
0.005
0.04
0.029
<
0.005
<
0.005
9/3/98
<
0.001
<
0.001
<
0.005
<
0.005
0.049
0.028
<
0.005
<
0.005
11/9/98
11/10/98
T(Q�
11/11/98
LAP1 C ii
11/12/98
-fit 01\1ire/
0.0050
0.0050
0.0010
0.0010
_ 0.0050
0.0050
0.0416
0.0209
0.0050
0.0050
MAXIMUM =
0.005
0.005
0.001
0.001
0.005
0.005
0.142
0.047
0.005
0.005
MINIMUM =_ 0.005
0.005
0.001
0.001
0.005
0.005
0.005
0.005
0.005
0.005
LBS/DAY = #REF!
#REF!
_-
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
REMOVAL RATE =
0.00
LITERATURE RR =
45.00
REMOVAL RATE =
0.00
LITERATURE RR =
67.00
REMOVAL RATE =
0.00
LITERATURE RR =
82.00
REMOVAL RATE =
49.74
LITERATURE RR =
86.00
REMOVAL RATE =
0.00
LITERATURE RR =
69.00

DWQ Pretreatment Group's
Headworks Analysis (HWA) Data Summary
for
Page 3 of 4
6/ 19/O 1, 1:54 PM
pittsboro,data.98.selected.for.npdes.renewal.xls
INFLUENT
CONC.
lead
EFFLUENT
lead
INFLUENT
CONC.
mercury
EFFLUENT
mercury
INFLUENT
CONC.
Molybdenum
l
I
EFFLUENT
Molybdenum
INFLUENT
CONC.
nickel
EFFLUENT
nickel
INFLUENT
CONC.
Selenium
EFFLUENT
Selenium
INFLUENT
CONC.
silver
SAMPLE
DATE
(mg/1)
(mg/1)
(mg/I)
(mg/1)
(mg/1)
(mgll)
(mg/I)
(mg/I)
(mg/I)
(mg/1)
(mg11)
7/3/97
7/10/97
7/18/97
7/25/97
7/28/97
7/29/97
7/30/97
7/31/97
8/4/97
8/8/97
9/5/97
0.005
0.005
0.016
0.011
9/12/97
0.005
0.005
0.01
0.013
10/22/97
0.006
0.005
0.01
0.01
11/14/97
0.013
0.005
- 0.01
0.018
12/11/97
0.005
0.005
0.02
0.01
.
1/23/98
0.005
0.005
0.01
0.01
2/13/98
<
0.005
<
0.005
<
0.01
<
0.01
3/13/98
<
0.005
<
0.005
<
0.01
<
0.01
<
0.01
<
0.01
4/16/98
0.013
<
0.005
<
0.01
<
0.01
<
0.01
<
0.01
5/15/98
<
0.005
<
0.005
<
0.0002
<
0.0002
<
0.01
<
0.01
<
0.01
<
0.01
<
0.005
<
6/3/98
<
0.005
<
0.005
0.0002
<
0.0002
<
0.01
<
0.01
0.015
<
0.01
<
0.005
<
7/15/98
0.006
<
0.005
<
0.0002
<
0.0002
<
0.01
<
0.01
0.01
<
0.01
<
0.005
<
8/6/98
<
0.005
<
0.005
<
0.0002
<
0.0002
<
0.01
<
0.01
0.02
<
0.01
<
0.005
<
9/3/98
<
0.005
<
0.005
<
0.0002
<
0.0002
<
0.01
<
0.01
<
0.01
<
0.01
<
0.005
<
11/9/98
<
0.005
<
0.005
11/10/98
<
0.005
<
0.005
11/11/98
<
0.005
<
0.005
11/12/98
<
0.005
<
0.005
0.0063
0.0050
0.0002
0.0002
0.0100
0.0100
0.0122
0.0109
0.0050
0.0050
0.0050
MAXIMUM =
0.013
0.005
0.0002
0.0002
0.01
0.01
0.02
0.018
0.0050
0.005
0.005
MINIMUM =
0.005
0.005
0.0002
0.0002
0.01
0.01
0.01
0.01
0.0050
0.005
0.005
LBS/DAY =
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
#REF!
REMOVAL RATE =
20.45
LITERATURE RR =
61.00
REMOVAL RATE =
0.00
LITERATURE RR =
60.00
REMOVAL RATE =
0.00
LITERATURE RR =
33.00
REMOVAL RATE =
LITERATURE RR =
42.00
REMOVAL RATE =
0.00
LITERATURE RR =
50.00
REM1
LITE;

DWQ Pretreatment Group's
Headworks Analysis (HWA) Data Summary
for
EFFLUENT
silver
INFLUENT
CONC.
zinc
EFFLUENT
zinc
SAMPLE
DATE=.
(mg/1)
(mg/1)
(mg/1)
7/3/97
7/10/97
7/18/97
7/25/97
7/28/97
7/29/97
7/30/97
7/31/97
8/4/97
8/8/97
9/5/97
0.068
0.068
9/12/97
10/22/97
0.126
0.118
11/14/97
0.168
0.047
12/11/97
0.097
0.069
1/23/98
0.039
0.036
2/13/98
0.042
0.017
3/13/98
0.062
0.024
4/16/98
0.105
0.023
5/15/98
C 0.005
0.103
0.039
6/3/98
. 0.005
0.092
0.064
7/15/98
G 0.005
0.233
0.078
8/6/98
L 0.005
0.102
0.063
9/3/98
L 0.005
0.132
0.084
11/9/98
11/10/98
/q(f /o' J
11/11/98
ela
11/12/98
.
i+
/vt4/4/79Rs
0.0050
0.1053
0.0562
MAXIMUM =
0.005
0.233
0.118
MINIMUM =
0.005
0.039
0.017
LBS/DAY =
#REF!
#REF!
#REF!
OVAL RATE =
0.00
:RATURE RR =
75.00
REMOVAL RATE =
46.68
LITERATURE RR =
79.00
Page 4 of 4
6/19/01, 1:54 PM
pittsboro,data.98.selected.for.npdes.renewal.xls

4
NPDES/Non-Discharge Permitting Unit Pretreatment Information Request Form
NPDES OR NONDISC AR E PERMITTING UNIT COMPLETES THIS PART:
Date of Request 13
Facility
PI '(T5% > t=
Permit#
YLC.Ob 9.© 35c}'
Region
Y2 %LO
Requestor
(N ((_S O trt
Pretreatment
Contact
A_D Towns- Keyes McGee (ext. 580
E-L Towns- Mazec .-a [mot G c rc
ana Folley (ext. 523t---,,
S-Z Towns- teve Amlgorre (ext 5U2)
513.
PRETREATMENT UNIT COMPLETES THIS PART:
Status of Pretreatment Program (circle all that apply)
1) the facility has no SIU's and does have a Division approved Pretreatment Program that is INACTIVE
2) the facility has no SIU's and does not have a Division ap roved Pretreatment Program
C3-) the facility has (efris- ifrtet a Pretreatment-P7oC>
2a) is Full Program with LTMP or 2b) is Modified Program with STMP) S c
4) the facility MUST develop a Pretreatment Program - Full Modified I� t
5) additional conditions regarding Pretreatmentattached or listed below ` .,'
(fyk'of� Q [
ke0,oOa- �>
Flow Permitted Actual .r d
STMP time fram +�
Industrial O. ? O I tv1 `� .4` O' I� "� d���®
cost recent
Domestic
next cyc` a
Co/
•fDb :A- A 5- �_ o i-a M G3>
L
(S)
T
MP
Pollutant
Check List
POC due to
NPDES/Nan-
Discharge
Permit Limit
Required
by EPA*
Required by
503 Sludge"
POC due to SIU•'•
STMP
Frequency
a
LTMP
Fre ncy at
e uent
Site specific POC (Provide Explanation)'"*'
effluent
/BOD
.l
✓
4
✓TSS
V
/
✓
4
M
il
NH3
V
✓
4
M
Arsenic
t/
4
Q
Cadmium
d
/
t/
4
Q
Chromium
✓
4
M
Copper
4
V
I'4
M
Cyanide
✓
4
Q
-4
Lead
'1
✓
✓
4
•✓
Mercury
V
J 4
Q M
V
Molybdenum
✓
4
'1
Nickel
4
V
✓
4
Q
/I
Silver
/
I
4
Q
V
Selenium
✓
4 1
M
J
Zinc
J
,/
4
Y
phespho,^us
‘/v'
✓
4
Q
4
M
4
4
M
t
4
4
'Always in the LTMP
-'Only in the LTMP if the POTW land appl es sludge
••• Only in LTMP while the SIU is connected to the POTW
•••• Only in LTMP when the pollutant is a specific concem to the POTW (ex -Chlorides for a POTW who accepts Textile waste)
O. Quarterly
M=Monthly gComments: -� - 119 -+ /'
E,r1:f Ito(
-
I u
Caul.
version 8/23/00 S -O C I!e
O10
Ors _ /% ` %
NPDES_Pretreatment.request.fonn.000823 ai Q S �+ tJ, a M r �/ 1V/0 / - �p// /Q /
Revised: August 4, 2000 " " l l7 /(( /
fi �am��.Ui1 G�� p : to�1 was dcsclta�Q
�lovv-C . Po�J,ceAse perm IsstOto
t`o t i Fps G2a-t u) ✓► �t7r�

Re: pittsboro
•
Subject: Re: pittsboro
Date: Tue, 19 Jun 2001 16:32:33 -0400
From: Michelle Woolfolk <[e-mail]>
Organization: NCDENR-Division of Water Quality
To: Susan Wilson <[e-mail]>
looks good to me!
mew
Susan Wilson wrote:
> hey Michelle! we've generally been putting this language in the cover
> letter to the permits for those in which this applies, but i was also
> going to add the special condition in the 2nd paragraph to this. any
> thoughts?
• -- Please note that this facility discharges to nutrient sensitive
> water (NSW) and may already have total phosphorus limits as a result of
> the NSW strategy. In 1997 the Clean Water Responsibility Act (House
> Bill 515) was enacted, with the intent to strengthen the control of
> nutrients from all discharges to NSW waters. Facilities permitted to
> discharge > 500,000 gallons per day, and any new or expanding
> facilities, will be subject to nutrient limitations for total nitrogen
> and total phosphorus according to House Bill 515 requirements. The
> nutrient limitations are effective January 1, 2003, unless a compliance
> extension was received and approved by the Division. If an extension
> was not received/approved, the nutrient limits appear in this permit.
> If an extension was approved, the nutrient limits will be deferred until
> results of the nutrient response modeling effort are completed. Please
> note that modeling results may result in limits lower than those
> mandated by House Bill 515.
> --A. (3.) NUTRIENT LIMITS SPECIAL CONDITION
> Limits on total nitrogen have not been included at this time because the
> facility is participating in the Lake Jordan Coalition. If compliance
> with any element of this strategy, or subsequent approved revisions to
> the strategy is not maintained, the Division reserves the right to
> reopen this permit to include nitrogen limits. If requirements other
> than those listed in this NPDES permit are adopted as part of a future
> revision to the strategy, the Division reserves the right to reopen this
> permit to include these requirements.
> (this is similar to the language we used with the Tar Pam.
> thanks!
MICHELLE WOOLFOLK
DWQ PLANNING BRANCH
NCDENR
1617 MAIL SERVICE CENTER
RALEIGH NC 27699-1617
PH:919/733-5083 x505 FX:919/715-2941
[e-mail]
1 of 1 6/19/01 4:39 PM

Division of Water QuaCit
MEMO From. Date:
To- Subject:
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North Carolina Department of Environment and Natural Resources
PO Box 29535, Raleigh, North Carolina 27626-0535 / Phone: [phone]

Re: pittsboro
Subject: Re: pittsboro
Date: Tue, 12 Jun 2001 18:00:34 =D400
From: Dana Folley <Dana.Folley @ ncmai l.net>
To: Susan Wilson <[e-mail]>
Pittsboro has had an Active Pretreatment Program (Modified Status) since
1998. There should be a copy of the approval letter in your files!?? They
have a small metal finisher - HydroTube South - that was the reason they
developed to Program. More recently they have tied on a large chicken
slaughter and processing plant - Townsend who has a failing spray field.
So they definately have Pretreatment and will continue to do so. I'm
assuming you are pretty far along with your renewal process and will need
the usual pretreatment type info from me ASAP'I11IIII1 If you will forward
me a Pretreatment Information Request Form, I should be able to fill it out
and also look into the pollutants you mentioned on Thursday (I'll be out on
Wednesday and Friday).
Susan Wilson wrote:
> Dana,
> i thought pittsboro didn't have any SIUs right now and weren't under a
> pretreatment program? is that correct?
> but...they've checked off on their application that they have:
> aluminum, nickel, copper, zinc, chromium, and phenols. at first i
> thought they were just checking off what they thought was ubiquitous in
> domestic discharges - but with chrom. and phenols - not sure why they
> checked those and if they were looking at real data or not.
> any thoughts?
Dana Rees Folley
Environmental Chemist II
Division of Water Quality.
Water Quality Section
Pretreatment Unit
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
telephone: [phone] x523
facsimile: [phone]
http://h2o.enr.state.nc.us/Pretreat/index.html
1 of 1 6/13/01 8:59 AM

Whole Effluent Toxicity Testing Self -Monitoring Summary May 16, 2001 ,
FACILITY REQUIREMENT YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Pilot Mountain WWTP Penn chr lim: 31.: if pf 3.IIMGD chr lim 5% Y 1997 Pass - Pass -- -- Fail
NC0026646N01 Begin:3/1/1998 Frequency: Q P/F + Jan Apr Jul Oct + NonComp:Single 1998 Pass - Late NR NR Pass
County: Sum Region: WSRO Subbasin: YADO3 1999 NR/Pass -- - Pas -- - Pass
PF: 1.5 Special 2000 Pass - Pass - Pass
7010: 82.2 IWC(.:):2.75 Order 2001 Pass
Pass
Pass
NR/Pass
PuSs
Pass
Pittsboro WWTP Perm chr lim: 90
NC0020354/001 Begin:9/25/1998 Frequency: Q P/F Mar Jun Scp De
County: Chatham Region: RRO Subbasin: CPF04
PF: 0.75 Special
7010: 0.000 1 WC(%):100 Order:
+ NonComp:Single
1997 -
1998 -
1999 -
2000 -.
2001 -
-- - -- - - - -•- - Pass
Fail NR/Pass Pass - Pass - - Pass
Pass -- Pass - NR/Pass - - Pass
Pass
Plantation Pipeline Co. (001) Pcrm 24hr LC50 ac monit epis fthd (grab) 1997 - - - -- - - - - - - - >100
NC0051161/001 Begin:7/1/1996 Frequency: A NonComp: 1998 - - - - - >100 - - - - - >100
County. Guilford Region: WSRO Subbasin: CPF08 1999 - -- - - >100 - - - - >100
PF: Special 2000 - - - - >100 - - - - - >100
7Q10: 0.0 IWC(%)NA Order: 2001 - - -
Plantation Pipeline Co. (002) Perm 24hr LC50 ac moat erns fthd (grab) 1997 - - - - - - - - - - - >100
NC0051161/002 Begin:7/1/1996 Frequency: A NonContp: 1998 - - - - - >100 - - -- >100
County: Guilford Region: WSRO Subbasin: CPF08 1999 - - - - - >100 - - >100
PF: Special 2000 - - - - - >100 - - - >100
7Q10: 0.00 1WC(%):NA Order: 2001 - - -
PPG Industries Penn chr lim: 48%
NC0004626/001 Begin:11/1/1999 Frequency: Q P/F Feb May Aug Nov
County: Davidson Region: WSRO Subbasin: YADO4
PF: 0.6 Special
7010: 1.0 IWC('/.):48.19 Order:
+ NonComp:Single
1997 - 16.9 - - 29.3 - - 53.6 - Pass
1998 -- Pass - - Pass - Pass Pass
1999 - Pass - - Pass - - Pass -- Pass
2000 - Pass - - Pass(s) - - Pass - -- Pass
2001 - Pass -
PPG -Shelby -001 Pcrm chr lim: 33%
NC0004685/001 Begin:5/1/1999 Frequency: Q P!F + Jan Apr Jul Oct
County: Cleveland Region: MRO Subbasin: BRD04
PF: 1.3 Special
7Q10: 4.0 IWC(%):33 Order:
+ NonComp:Singlc
Y 1997 FalI,Fail Fall,Pass FaIl,23.3 23.3 Fas,Passt Pass.Pesst Pass,57.1t 57.1,Pass 57.1 57.1 Pass Pass
1998 57.1 - Pass 23.3,40.4 -- Pass 23.3.23.3 40.4 --- Pass.Pass --
1999 Pass - - Pass - - Pass - Pass
2000 pass - - Pass - Pass(s) - Pass -_ --.
2001 Pass - - Pass
Princeton WWTP Perm chr lim: 7% 1997 -- - Pass - Pass - - Pass
NC01126662/001 Begin:8/1/2(I00 Frequency: Q Mar Jun Sep Dec + NonComp:Singlc 1998 - Fail Pass - - Pass - - Fail
County: Johnston Region: RRO Subbasin: NEU06 1999 - - Pass - - Pass - Pass
PF: 0.275 Spo al 2000 -- Pass - -- Pass - - Pass
7QI0: 5.511 IWC('.):7.19 1h,1,,. 2001 --- - Pass
Pass
Pass
Pass.Pass
Pass
Pass
Proctor Silos Penn chr dim: 1.7%
NC00057031001 Begin: I l)/1/21100 Frequency: Q Mar Jun Sep Dec
County. Surry Region: WSRO Subbasin: YAD03
PF: 0.085 Special
7Q10: 7.6 IWC(11):1.7 Order:
+ NonComp:Singlc
1997 --- - Pass - Pass - Fail Pass Pass
1998 -- - Pass - Fail.Pass - Pass -- - Fail
1999 Fad Pass Pass - Pass - -- Pass - - Pass
2000 -- -- Pass - Pass - Fad <0.85 >3 4 Pass
2001 --- H
PYA/Monarch Inc. Perm chr lim: 90%(Grab) 1997 -- - N - N - -- N - N
NC008556I/001 Begin:8/1/1996 Frequency: Q P/F + Mar Jun Scp Dec NonComp:Single 1998 - - N - - N - N N
County: Mecklenburg Region: MRO Subbasin: CTB34 1999 - - N - N - N -- N
PF: 0.0216 Special 2000 - - N - - N - N N
7Q10: 0.0 IWC(%):100 Order. 2001 - - N
R.P. Scherer/Chelsea Laboratories Perm chr lim: 90% (Grab)
NC0084344/001 Bcgin:l/ 1/2001 Frequency: Q Feb May Aug Nov
County: Union Region: MRO Subbasin: YADI4
PF: 0.05 Special
7Q10: 0.0 IWC(%):I 00.0 Order:
+ NonComp:Singlc
1997 - - - - - - - - - - - --
1998 - - - - Fab Fait Fail Pass - - Fail Fail
1999 Pass NR - - Pass - - Pass - - Pau -
2000 - Pass - - Fall >100 84.9 Fall e60 84.9 H
2001 - H -
Raeford WWTP Penn chr dim: 9% 1997 - Pass - - Pass - - Pass - - Pass
NC0026514/001 Begin:7/I/1996 Frequency: Q P/F + Fcb May Aug Nov NonComp:Singlc 1998 - Late Pass - Pass - - Pass - Pass
County: Hoke Region: FRO Subbasin: CPF15 1999 - Late Pass - Late Pass - Pass -- Pass
PF: 3.0 Special 2000 - Pass - - Pass - 8t Pass Pass
7010: 49.0 IWC(%):8.67 Order: 2001 -- Pass -
Y Prc 1997 Data Available
LEGEND:
PERM = Perma Requirement LET = Administrative Letter -Target Frequency = Monitoring frequency. Q. Quancrly; M- Monthly; BM- Bimonthly; SA- Semiannually; A- Annually; OWD- Only when discharging; D- Discontinued monitoring requirement
Begin = First month required 7(310 = Receiving stream low flow critenon lets) += quarterly monitoring increases to monthly upon failure or NR Months that testing must occur - ex. Jan. Apr. Jul. Oct NunComp = Current Compliance Requirement
PF = Permitted Row (MGD) IWC% = Instrcam waste concentration P/F = Pass/Fail test AC - Acute CHR = Chronic
Data Notation: r- Fathead Minnow; • - Cenodaphnia sp.; my - Mysid shrimp; ChV - Chronic value; P - Mortality of stated percentage at highest concentration; at - Performed by DWQ Aquatic Tox Unit; b1- Bad test
Renaming Notation: --- = Data not required; NR - Not reported Facility Activity Status: I - Inactive. N - Newly Issucd(To construct); H - Active but not discharging; t-Morc data available for month in question; • = ORC signature needed
37

SOC PRIORITY PROJECT: Yes: No:X
If Yes, SOC No.:
NPDES STAFF REPORT AND RECOMMENDATIONS
FOR TOWN OF PITTSBORO
Date:April 18, 2001
To: Permits and Engineering Unit
Water Quality Section
Attention: Charles Weaver
County: Chatham
Permit No.: NC0020354
PART I - GENERAL INFORMATION
1. Facility and Address: Pittsboro WWTP
PO Box 759
Pittsboro, NC 27312
2. Date of Site Visit: April 10, 2001
3. Report Prepared by: Bob Mangum
4. Persons Contacted and Telephone Number: Wally Jenkins-ORC
919-542-2444
5. Directions to Site: US 64 W. to Pittsboro, turn left
onto Small St., WWTP is at the end of road
6. Discharge Point(s), List for all discharge points:
Latitude: 35 ° 42' 48" Longitude: 79 " 10' 12"
Attach a USGS map extract and indicate treatment facility site and discharge point
on map.
U.S.G.S. Quad No.: E22NW U.S.G.S. Quad Name: Pittsboro
7. Site size and expansion area consistent with application? Yes: x
No: If No, explain:
Non -Discharge Staff Report
Page 1

8. Topography (relationship to flood plain included): Relatively flat
9. Location of nearest dwelling:Approximately 200 ft.
10. Receiving stream or affected surface waters:Robeson Creek
a. Classification:WS-IV NSW
b. River Basin and Subbasin No.:03:06:04
c. Describe receiving stream features and pertinent
downstream uses:Creek flows into Jordan Lake
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: 0.75 MGD
b. What is the current permitted capacity of the Waste Water Treatment facility?
0.75 MGD
c. Actual treatment capacity of the current facility (current design capacity)?
0.75 MGD
d. Date(s) and construction activities allowed by previous Authorization to
Construct issued in the previous two years: N/A
e. Please provide a description of existing or substantially constructed
wastewater treatment facilities: manual and automatic bar screen -influent
pump station-2 aeration basins-2 clarifiers-3 tertiary filters-2 aerobic
sludge digesters -UV disinfection -ultrasonic flow meter -cascade aeration
f. Please provide a description of proposed wastewater treatment facilities: N/A
g. Possible toxic impacts to surface waters: Flow is 100% domestic
h. Pretreatment Program (POTWs only):
in development: approved:
should be required: not needed:x
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM permit
no.:WQ0000506
Residual Contractor:Wallace Woodall
Telephone No.:919-387-1906
Non -Discharge Staff Report
Page 2

b. Residuals stabilization: PSRP:x
PFRP: Other:
c. Landfill:
d. Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating sheet):Class III
4. SIC Code(s):4952
Wastewater Code(s) of actual wastewater, not particular facilities i.e.., non -contact
cooling water discharge from a metal plating company would be 14, not 56.
Primary:01
Main Treatment Unit Code: 056-3
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals
only)?N/A
2. Special monitoring or limitations (including toxicity) requests:No
3. Important SOC, JOC or Compliance Schedule dates: (Please indicate)
Date
Submission of Plans and Specifications
Begin Construction
Complete Construction
4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge
options available? Please provide regional perspective for each option evaluated.
Spray Irrigation:N/A
Connection to Regional Sewer System:N/A
Subsurface: N/A
Other disposal options:N/A
5. Other Special Items:
Non -Discharge Staff Report
Page 3

PART IV - EVALUATION AND RECOMMENDATIONS
The RRO has reviewed the application for renewal of the subject NPDES Permit and
performed a Compliance Evaluation Inspection on April 10, 2001. This WWTP has been
in compliance with its permit limits since June 2000 and appears to be a well maintained
and operated facility. This WWTP appears to be able to consistently comply with its
monitoring parameters. Therefore, it is recommended that this permit be renewed as
requested.
Signature of re ort p parer
Water Quality Regional Supervisor "'
Non -Discharge Staff Report
Page 4
V/e/a/
Date
Da

TOWN OF
CHARLES R. DEVINNEY
Mayor
HUGH R. MONTGOMERY
Town Manager
PAUL S. MESSICK, JR.
Town Attorney
P.O. Box 759 — 635 East Street
PITTSBORO. N.C. 27312
TO: Charles Weaver
NPDES Unit
FROM: Town of Pittsboro
SUBJECT: Renewal Application for
NPDES Permit# NC0020354
BOARD OF COMMISIONERS
GENE BROOKS
MAX G. COTTON
CASSIE H. WASKO
EHTEL F. BURNS
CLINTON E. BRYAN, JR.
TELEPHONE
[phone]
FAX [phone]
L,
DEC 2 9 2000
DEriR - 4":IE;; Q;;4LITY
PO:NT SOURCE BRANCH
Dear Sir,
The Town of Pittsboro is requesting that NPDES Permit#
NC0020354 that has been issued to the Town of Pittsboro WWTP be
renewed in it's present form for the next permitting cycle. There have been no
changes at the wastewater facility since the last permit was issued.
Thank you for your consideration,
Town Manager
Town of Pittsboro
*Per conversation with Mr. Charles Weaver, DWQ
The average flow stated on renewal form is a average from the last two(2)
years, however the Pittsboro Board of Commisioners have issued a self-
imposed moratorium on large subdivisions based on a 'wet' year flow
average of 0.480 MGD and present existing wastewater allotments already
granted to approved large subdivisions within the town This was done to give
the town time to study and formulate a plan to address issues in upgrading
and expanding the town's existing WasteWater Treatment facility.
CHARTERED 1787

TOWN OF
• CHARLES R. DEVINNEY
Mayor
HUGH R. MONTGOMERY
Town Manager
PAUL S. MESSICK, JR.
Town Attorney
P.O. Box 759 — 635 East Street
PITTSBORO. N.C. 27312
TO: N.C.DENR/Water Quality
NPDES Unit
FROM: Town of Pittsboro
BOARD OF COMMISIONERS
GENE BROOKS
MAX G. COTTON
CASSIE H. WASKO
EHTEL F. BURNS
CLINTON E. BRYAN, JR.
TELEPHONE
[phone]
FAX [phone]
SUBJECT: Sludge Management Plan
NPDES # NC0020354
The Town of Pittsboro contracts with licensed sludge hauler who removes
the sludge from our treatment facility for land application at a permitted site.
The town collects samples for sludge land applications rates and to meet
Pathogen Reduction and Vector regulations.
Respectfully Submitted,
u: ntgomery
Town Manager
Town of Pittsboro
CHARTERED 1787

Division of Water Quality
December 22, 2000
MEMORANDUM
DEC 2 9 2000
To: Michelle Woolfolk
From: Harold Quidley
Through: Jay Sauber/
Subject: Review of Roberson Creek 303d Listing Issues
Attached please find a water quality pre -survey report. This report was based on two field surveys and a
review of available pertinent information. This information should help facilitate the construction of a valid
TMDL approach for this 303d listed stream.
Based on the data from two surveys, 303d water quality studies in this watershed should include Turkey
Creek as a source of pollutants to Roberson Creek. Physical and chemical data collected during two sampling
events strongly suggests that effluent from surface runoff or other sources associated with the Townsend Foods
plant is entering Turkey Creek and Camp Creek and is adding to the impacts on water quality in the lower reach
of Roberson Creek. Townsend Foods does not appear to be operating as a successful non -discharge facility. It
appears that this facility is contributing nutrients and BOD to Turkey Creek and Camp Creek.
Accompanying this memo is a map of the survey area showing Roberson Creek and Turkey. Also included
are maps from the Townsend Foods permit showing the locations of monitoring wells and the spray irrigation
system. If you need additional information regarding the Roberson Creek watershed survey, please call Jay
Sauber or Harold Quidley at [phone].
Location
Roberson Creek WWTP upstream site
Roberson Creek WWTP downstream site
Turkey Creek (upstream from Townsend Foods)
Turkey Creek (downstream from Townsend Foods)
NH3 TKN NOX TP BODS Conductivity
mg/L mg/L mg/L mg/L mg/L phmos
0.02 0.4 0.13 0.04 2.20 131
0002 0.9 8.80 0.66 1.54 256
0.04 0.3 0.05 0.04 1.18 118
6.9 7.9 1.9 1.40 34.43 1425 max
Camp Creek at Hwy 15/501 (upstream from Townsend Foods) 0.09 0.6 0.13 0.06 2.37 132
Camp Creek at SR1012 (downstream from Townsend Foods 0.83 1.9 3.5 1.00 6.50 559
CC: Jimmie Overton w/ attachments
Ken Schuster w/ attachments
Dave Goodrich w/ attachments
Dennis Ramsey w/ attachments
Kim Colson w/ attachments
Jay Zimmerman w/ attachments
Ron Ferrel w/ attachments
Environmental Sciences Branch Water Quality Section

Review of Roberson Creek 303d Listing Issues
Roberson Creek watershed survey December 8, 2000
On December 8, 2000, ISU staff conducted a watershed survey of the Roberson Creek drainage area in
Chatham County near Pittsboro. The purpose of the survey was to find an accessible site on lower Roberson
Creek where a flow -rating curve could be established to provide data for future TMDL modeling. The survey
included physical measurements, field notes and photo documentation at bridge crossings and other accessible
sites in the drainage area. Roberson Creek watershed survey locations are presented in the following list.
Site List (see attached map)
RC 1 Roberson Creek at SR2159 (headwaters)
RC 2 Roberson Creek at SR2160
RC3 Roberson Creek at Pittsboro Lake boat ramp
RC4 Roberson Creek at 15/501 Pittsboro
RC5ups Roberson Creek WWTP upstream monitoring site
RC5eff Roberson Creek WWTP effluent outfall site (#NC0020354)
RC5dns Roberson Creek WWTP downstream monitoring site
RC6 Roberson Creek 100 feet upstream Roberson/Turkey confluence
TC 1 Turkey Creek at Hwy 15/501 (upstream from Townsend Foods)
TC2 Turkey Creek at SR I012 (downstream from Townsend Foods)
TC3 Turkey Creek 100 feet upstream Roberson/Turkey confluence
RC7 Roberson Creek confluence (100 feet downstream from Roberson/Turkey confluence)
CCI Camp Creek at Hwy 15/501 (upstream from Townsend Foods)
CC2 Camp Creek at SR 1012 (downstream from Townsend Foods)
CC3 Camp Creek 100 feet above mouth
RC8 Roberson Creek at flow rating site near Lucian Bland Rd.
RC9 Roberson Creek at SR 1943 (old ambient site)
RCIO Roberson Creek at boat ramp (ambient site #B2450000)
Roberson Creek flows in an easterly direction 10.9 miles from it origins southwest of Pittsboro to its mouth at
the Haw River arm of Jordan Lake. A suitable flow site with good access was found 3.8 miles upstream from the
mouth of Roberson Creek near Lucian Bland Road (RC8). A staff plate will be installed at the site and the first
in -stream flow measurement will be performed during the upcoming week. The upper reach of Roberson Creek
receives urban drainage associated with the Town of Pittsboro. The Pittsboro WWTP (NPDES #NC0020354)
discharges into Roberson Creek 7.0 miles upstream from Jordan Lake (RC5).
Roberson Creek is currently on the 303(d) list for habitat degradation and chlorophyll -a violations in the
lower 0.3-mile reach near its confluence with the Haw River arm of Jordan Lake. The main -stem of Roberson
Creek is also on the 303(d) list for biological impairment from Pittsboro approximately 5.6 miles downstream to
a point 0.3 miles upstream from its confluence with Jordan Lake. In addition, Pittsboro Lake (RC3), located on
Roberson Creek in Pittsboro, is also on the 303(d) list due to aquatic weeds.
Benthic Macroinvertebrates were collected above and below the Pittsboro WWTP in 1990, resulting in a
bioclassification of Poor above the facility and Fair below. These ratings may be influenced by the low flow
nature of this stream. A sample was also collected at the downstream site in 1986, resulting in a rating of Fair.
Benthic samples were also collected from Roberson Creek at US 15/501 and a site about 20 meters downstream
of a UT to Roberson Creek that was the site of an oil spill in March 1997. Access to this site was from a sewer
Environmental Sciences Branch 1 Water Quality Section

line right-of-way upstream of the Pittsboro discharge. Both of these samples resulted in a bioclassification of
Fair.
Sites in the upper 3-mile reach of Roberson Creek, from its headwaters near SR 2159 (RC1), downstream to
the Pittsboro WWTP outfall (RCS), exhibited conductivity levels typically found in urban streams ranging from
109µhmos to 147µhmos. Conductivity of the WWTP effluent (RC5eff) was 549 µhmos.
The Town of Pittsboro WWTP (permit # NC0020354) currently has a permitted discharge flow of 0.75 MGD.
They are required to monitor their effluent three times per week for BOD5, total suspended solids (TSS), NH3 as
N, dissolved oxygen and fecal coliform, and once per week for total phosphorus. The following table shows
monthly averages for the period January through October 2000.
Date BOD5 TSS NH3-N D.O. Fecal C TP
mg/L mg/L mg/L mg/L geo / l 00m1 mg/L
January 5.88 6.38 0.05 9.36 25 1.33
February 3.75 4.85 0.06 8.70 53 1.03
March 6.05 5.24 0.10 7.18 39 1.56
April 6.48 7.19 0.25 8.04 367 1.74
May 7.66 8.97 0.35 7.31 216 2.14
June 2.32 2.37 0.06 7.40 6 2.56
July 2.29 2.65 0.04 7.41 10 2.94
August 2.02 2.94 0.08 8.24 20 1.76
September 2.01 4.58 0.04 7.72 5 1.19
October 2.10 5.39 0.04 7.59 6 1.97
The town is also required to monitor Roberson Creek upstream and downstream of their effluent discharge
three times per week during June through September and once per week during the remaining months of the year
for dissolved oxygen, temperature, conductivity and fecal coliform. The following table shows monthly
averages for the period January through May 2000.
Date
Pittsboro WWTP
Upstream Downstream
D.0 Temp Cond. Fecal C
mg/L °C !Amos geo / 100m1
D.O. Temp Cond. Fecal C
mg/L °C µhmos geo /100m1
January 9.68 8.6 127 44 9.10 8.6 122 386
February 8.06 9.6 92 111 7.00 9.6 114 112
March 6.73 14.8 100 228 5.40 14.0 114 520
April 8.68 14.5 100 266 8.43 14.3 137 410
May 6.45 20.5 144 250 6.45 20.0 196 284
A review of this data suggests a slight to moderate decrease in dissolved oxygen from the upstream to
downstream station. Also, the fecal coliform count increased from upstream to downstream of the WWTP. The ,
facility disinfects its effluent by means of UV light. In -stream data, both upstream and downstream, appear to be
in excess of the water quality standard of 200 cfu's.
The December 8 watershed survey also included sites on Turkey Creek, a major tributary to Roberson Creek.
From its origin, Turkey Creek flows in a northeasterly direction 3.4 miles to its confluence with Roberson Creek.
The Roberson Creek/Turkey Creek confluence (RC7) is located 1 mile downstream from the Pittsboro WWTP
outfall (RC5eff).
Townsend Foods Inc., a chicken processing plant, is located on Turkey Creek 0.9 miles upstream from the
Turkey Creek/Roberson Creek confluence. A conductivity value of 115µhmos was measured in Turkey Creek at
Environmental Sciences Branch 2 Water Quality Section

Hwy 15/501 (TC1) which is located 0.5 mile upstream from the Townsend Foods plant. However, two
conductivity values in Turkey Creek at SR1012 (TC2), located just downstream from the Townsend Foods plant,
were 4641.thmos and 549µhmos.
Townsend Foods currently has a 16 acre lagoon (built in 1964) and a wastewater spray irrigation system
permit (#WQ0001755) which was reissued on April 15, 1999. Although conductivity is not generally considered
a pollutant, elevated conductivity is associated with pollution sources. Dissolved oxygen values were also
indicative of a potential BOD source in Turkey Creek with values of 10.9 mg/1 (82% saturation) at Hwy 15/501
(TC1) upstream from the plant, decreasing to 7.9 mg/1 (61% saturation) at SR1012 (TC2) downstream from the
plant. An elevated conductivity value of 570 µhmos was also measured near the mouth of Camp Creek (CC3), a
small tributary to Roberson Creek located approximately 0.15 miles downstream from the Roberson
Creek/Turkey Creek confluence. Although Camp Creek is a relatively small tributary, it may be significant in
that it appears to drain areas near the Townsend Foods spray fields and waste lagoon.
In accordance with their permit1WQ0001755, Townsend Foods is allowed to operate approximately 130
acres of spray irrigation fields with no discharge of waste to surface waters. In addition, irrigation can not be
performed during inclement weather or when the ground is in a condition that will cause runoff. The facility is
required to monitor its effluent at a point prior to irrigation every March, July and November. Self -monitoring
data shows that the irrigation waste has a strong characterization. The following table shows an example of
submitted data from the Townsend Foods non -discharge wastewater monitoring report for March 1999, July
1999 and July 2000.
Townsend Foods Waste Analysis
Date pH BODS NH3-N NO3 TKN TP Mg Na TOC TSS Fecal C
Units mg/L mg/L mg/L mg/L mg/L ug/L mg/L mg/L mg/L /100m1
Mar 1999 7.7 65.7 0.1 73.7 7.7 6.8 94.0 50.6 176 11.800
July/Aug 1999 7.7 145 53.6 <0.5 66.9 14.6 8.6 131 44.8 110 2667
July 2000 7.6 102 43.9 <0.05 72.8 8.6 8.0 132 35.2 56 6600
Townsend Foods is also required to monitor 5 wells (MW-1, MW-2, MW-3, MW-4 and MW-6B) every
March, July and November. The following table shows an example of submitted well data from the Townsend
Foods non -discharge wastewater monitoring report for November 1999 through July 2000.
Date well # pH cond NH3-N NO3 TOC TDS Fecal C
units 'Amos mg/L mg/L mg/L mg/L geo
/ 100m1
Nov 1999 MW l 6.1 768 <0.1 <0.5 3.74 415 2 col
MW2 6.1 768 <0.1 <0.5 4.67 451 <1 co
MW3 6.7 482 <0.1 <0.5 <1.00 233 <1 col
MW4 6.3 490 <0.1 6.3 <1.00 329 <1 col
MW6B 6.9 540 <0.1 2.7 <1.00 330 <1 col
Mar 2000 MW 1 6.4 710 nr 5.5 2.22 290 <1 col
MW2 6.3 520 nr <0.5 <1.00 263 <1 col
MW3 6.7 283 nr <0.5 <1.00 503 <1 col
MW4 6.4 302 nr 9.8 <1.00 439 <1 col
MW6B 6.9 312 nr 2.7 1.40 744 <1 col
July 2000 MW 1 6.7 484 <0.1 0.7 1.87 427 4 col
MW2 6.4 497 <0.1 <0.5 <1.00 475 <1 col
MW3 7.1 290 <0.1 <0.5 <1.00 253 <1 col
MW4 6.6 302 <0.1 7.8 <1.00 296 <1 col
Environmental Sciences Branch 3 Water Quality Section

Access was granted to the Roberson Creek/Turkey Creek confluence by permission from a local landowner.
Although no in -stream flow measurements were taken, flow in Roberson Creek and Turkey Creek at the
confluence (TC3 and RC6) appeared to be about the same. Green algae was observed in Roberson Creek above
and below the confluence for an unknown distance. Conductivity values were 578 µhmos in Turkey Creek
(TC3) and 284 !Amos in Roberson Creek (TC6). Conductivity values ranged from 310 'Amos to 376 at sites
downstream from the confluence (RC7, RC8, RC9 and RC 10).
Roberson Creek sampling December 14, 2000
On December 14, 2000, ISU staff returned to the Roberson Creek watershed to conduct sampling at eight
sites. Parameters consisted of BOD5, nitrogen and phosphorus (N&P), and physical data at sites upstream and
downstream of the Townsend Foods property and the Pittsboro WWTP. Although the sampling was conducted
following a light rain event, the creeks were not turbid and flows appeared normal.
Nitrogen and phosphorus (N&P) samples indicated significant nutrient levels entering Turkey Creek from
sources at or near the Townsend Foods property. A nutrient sample from Turkey Creek at SR1012 (TC2), just
downstream from the plant indicated elevated values of 6.9 mg/1 NH3, 7.9 mg/L TKN, 1.9 mg/L NOX and 1.4
mg/L TP. In addition, a nutrient sample taken from Camp Creek at SR 1012 (CC2) located downstream from the
Townsend Foods spray irrigation system, indicated an upstream source of treated waste. Nutrient values from
CC2 indicated an NH3 value of 0.83 mg/L, a TKN value of 1.9 mg/L, an NOX value of 3.5 mg/L and a TP value
of 1.0 mg/L.
BOD5 data (ISU lab) indicated significantly greater demand at the downstream site on Turkey Creek (TC2)
with an elevated value of 34.43 mg/L when compared with the upstream site (TC1) at 1.18 mg/L. Similarly,
Camp Creek BOD5 data also showed a higher value at the downstream site (CC 2) at 6.50 mg/L than at the
upstream site (CC1) at 2.37 mg/L. BOD5 values at the Pittsboro WWTP were 2.2 mg/L at their upstream
monitoring site (RC5ups) and 1.54 mg/L at their downstream monitoring site (RC5dns).
A nutrient sample collected from Turkey Creek upstream from the Townsend plant (TC 1) indicated much lower
values for NH3 0.04 mg/L, TKN 0.3 mg/L, NOX 0.05 mg/L, and TP 0.04 mg/L. Similarly, Camp Creek at the
upstream site (CC1) also had much lower nutrient values at 0.09 mg/L NH3, 0.6 mg/L TKN, 0.13 mg/L NOX
and 0.06 mg/L TP.
Nutrient samples collected from sites RC4 and RC5ups, located on Roberson Creek upstream from the
Pittsboro WWTP, indicated values typical of urban creeks. These resulted in NH3 values of 0.03 and 0.02 mg/L,
TKN values of 0.03 and 0.04 mg/L, NOX values of 0.17 and 0.13 mg/L, and TP values of 0.03 and 0.04 mg/L.
A sample taken at the downstream sampling site for the Pittsboro WWTP showed the presence of treated
wastewater with high nitrification at 0.02 mg/L NH3, 0.9 mg/L TKN, 8.8 mg/L NOX and 0.66 mg/L TP. It
should also be noted that beaver dams were observed on the WWTP property upstream and downstream from the
effluent outfall. The dams are causing pooling at the facilities upstream and downstream self -monitoring sites.
Environmental Sciences Branch 4 Water Quality Section

The following table shows Nitrogen and phosphorus (N&P) and BOD5 data collected during the December
14, 2000 Roberson Creek and Turkey Creek background sampling survey.
Site # Location NH3 TKN NOX TP BOD5
mg/L mg/L mg/L mg/L mg/L
RC4 Roberson Creek at 15/501 Pittsboro 0.03 0.3 0.17 0.03 1.88
RC5ups Roberson Creek WWTP upstream site 0.02 0.4 0.13 0.04 2.20
RC5dns Roberson Creek WWTP downstream site 0.02 0.9 8.80 0.66 1.54
TC l Turkey Creek at Hwy 15/501 (upstream from Townsend Foods) 0.04 0.3 0.05 0.04 1.18
TC2 Turkey Creek at SR1012 (downstream from Townsend Foods) 6.9 7.9 1.9 1.40 34.43
CC 1 Camp Creek at Hwy 15/501 (upstream from Townsend Foods) 0.09 0.6 0.13 0.06 2.37
CC2 Camp Creek at SR1012 (downstream from Townsend Foods 0.83 1.9 3.5 1.00 6.50
RC8 Roberson Creek at Clow rating site near Lucian Bland Rd. 0.39 1.0 5.1 0.33 2.44
Elevated conductivity was again measured during the December 14 survey at the sites downstream from the
Townsend Foods plant; Turkey Creek at SR1012 (TC 2) 745 to 1425 µhmos, and Camp Creek at SR1012 (CC2)
559 µhmos. Conductivity values at sites upstream from Townsend Foods were again lower at 118 to 132 µhmos.
Dissolved oxygen values were again lower at TC2, downstream from the plant at 6.8 mg/1(54 % saturation)
compared with 10.1 mg/1 (79 % saturation) at TC1, upstream from the plant. A reduction in dissolved oxygen
values was not observed at the downstream site (CC2) on Camp Creek during the December 14 sampling.
Conductivity values in Roberson Creek were 131µhmos and 1270mos at RC4 and RC5ups, upstream from the
Pittsboro WWTP, and 256 at RC5dns, the facilities downstream sampling site.
Based on the data from two surveys, 303d water quality studies in this watershed should include Turkey Creek
as a source of pollutants to Roberson Creek. Physical and chemical data collected during two sampling events
strongly suggests that effluent from surface runoff or other sources associated with the Townsend Foods plant is
entering Turkey Creek and Camp Creek and is adding to the impacts on water quality in the lower reach of
Roberson Creek. Townsend Foods does not appear to be operating as a successful non -discharge facility. It
appears that this facility is contributing nutrients and BOD to Turkey Creek and Camp Creek.
Environmental Sciences Branch 5 Water Quality Section

Robeson Creek Water Quality Survey
Chatham County, NC
� I
12/8/00
Stallonll DO Temp pit Conductivity
RC 1 9.6 4.7 7.1 109
RC 3 ' '9.4 5.6 7.1 118
RC 4 11.2 4.3 7.0 147
RC Sups ' 10.6 6.1 •7.2 151
RC 5o11 10.1 13.0 6.8 549
RC 8 11.2 4.2 7.1 284
TC 1 10.9 3.4 7.1 115
TC 2 : 7.9 4.3 7.0 464
TC 3 13.2 3.8 7.2 578
CC 3 4.2 7.6 570
RC 7 4.1 8.2 367
RC 8 11.5 2.8 6.8 376
RC 9 4.3 7.1 310
Townsend Foods
-Spray Field & Lagoon
12/14/00
Stationll
RC 1
RC 3
DO Tcmp pit Conductivity
RC 4 11.2 4.3 7.0 147
RC 5ups 9.3 5.8 7.4 131
RC 5011
RC 5dns 8.0 5.6 7.1 256
RC 6
TC 1 10.1 5.0 7.3 118
TC 2 6.8 5.2 7.1 745 - 1425
TC 3
CC 1 9,9 5.6 7.2 132
CC 2 10.1 4.8 7.4 559
CC 3
RC 7
RC 8 12.9 5.4 7.5 344
RC 9
RC
-lo
Site
RC 9
Robeson Creek A
of Jordan eke

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FIGURE 2
TOWNSENDS FOODS — PITTSBORO FACILITY
490,000 GPD SPRAY IRRIGATION SYSTEM
CHATHAM COUNTY
WQ0001755/G198190
SITh DETAIL MAP

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
August 18, 2000
Mr. Hugh Montgomery
Town of Pittsboro
P.O. Box 759
Pittsboro, NC 27312
AVA
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
Permit NC0020354
Pittsboro WWTP
Chatham County
Dear Mr. Montgomery:
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 30604 to April 30, 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
November 1, 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.html.
You will need to download Short 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.
cc: Central Files
Raleigh Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
An Equal Opportunity Affirmative Action Employer
Sincerely,
//1.4'11. 401414:1L--
Kerr T. Stevens
Telephone [phone] FAX [phone]
VISIT US ON THE INTERNET © http://h2o.enr.state.nc.us/NPDES

•
Permit NC0020354
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,
Town of Pittsboro
is hereby authorized to discharge wastewater from a facility located at the
Pittsboro WWTP
south of U.S. Highway 64
Pittsboro
Chatham County
to receiving waters designated as Roberson 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 April 30, 2001.
Signed this day August 18, 2000.
Kerr T. Stevens, 'rector
Division of Water Quality
By Authority of the Environmental Management Commission

TOWN OF
'CHARLES R. DEVINNEY
Mayor
HUGH R. MONTGOMERY
Town Manager
PAUL S. MESSICK, JR.
Town Attorney
P.O. Box 759 — 635 East Street
PITTSBORO, N.C. 27312
September 13, 2000
Rep. Joe Hackney — 24th District
PO Box 1329
Chapel Hill, N. C. 27514
BOARD OF COMMISIONERS
GENE BROOKS
MAX G. COTTEN
CASSIE H. WASKO
ETHEL F. BURNS
CLINTON E. BRYAN, JR.
Subject: Increase in the Speculative Limits for the Town of Pittsboro Wastewater
Treatment Plant
Dear Rep. Hackney:
TELEPHONE
[phone]
FAX [phone]
The Town of Pittsboro and it's Extraterritorial Jurisdiction, which extends three miles
from the town limits in all directions, is faced with unprecedented development pressures.
In an effort to understand the impact that development will have on our community the
Commissioners have past their second moratorium prohibiting the introduction of new
residential subdivisions in the last two years and is in the throes of updateing our decade
old "Land Use Plan."
The Update Process is multifaceted and involves professionals from many fields.
Facilitating the Update is Ms. Susan Suggs — Senior Planner, Department of Commerce,
Division of Community Assistance. Mr. William Smithson, Planner with the NC DOT,
Statewide Planning Office, is providing data and direction to rewrite the "Thoroughfare
Development Plan" in the context of the Hwy 64 By-pass and the eventual four-laneing
of US 15-501. We are also working with experts in the field water treatment, wastewater
treatment and utility system improvements.
Our current permitted flow is 750,000 gallons per day. The discharge limits, which our
Wastewater Treatment Plant Operators must meet, are some of the most stringent in the
State of North Carolina and we are proud of their efforts to effectively treat wastewater
generated by our Citizens. The draft of "Cape Fear River — Basinwide Water Quality
Plan" indicates that water quality in Roberson Creek below the Treatment Plant is better
than above our facility.
On behalf of the Town our wastewater treatment expert, Mr. John Phillips, P.E., has
submitted a request to NCDENR — Water Quality Section to allow an increase in the
speculative limits, amount of wastewater we discharge into Roberson Creek, in the
amount of 495,000 gallons per day. A copy of their response is enclosed. The issue that
CHARTERED 1787

c
I need your guidance on is the nitrogen limits that our plant will have to achieve prior to
Water Quality allowing Pittsboro any additional discharge.
In a meeting with Staff members from the Division of Water Quality we were informed
that the annual amount of nitrogen we would be able to discharge into Roberson Creek
would have to equal our current loading rate. At present we are discharging
approximately 400,000 gpd of wastewater, or 53.3% of our design capacity, into
Roberson Creek. We do not believe that the position that DWQ has taken, indicating that
`� our nitrogen loading rates would be limited to the current rates, is a reasonable and
tcp supported by environmental rules/regulations.
4VP
�l,N�• The question of nitrogen loading rates must be answered prior to the development of
`y\\9 aS,. 4 effective treatment strategies to complete the Town's application for expanded
0.0 wastewater treatment capacity. The Commissioners have been advised to seek a legal
opr°` .0 interpretation, which would cost several thousands of dollars and in incense place our
(i' town in an advisory position with our State regulatoryAgency. We have always worked
h° ��wa Y
opus �t in concert with our State Agencies believing we serve the same purpose, the Citizens of
(�` V} ,„ North Carolina and residents of Pittsboro and do not want to find ourselves at odds with
�p.� • �Ypersons we rely on for guidance.
ti
N �\‘
•
•
� y C It is not the Commissioners intent to pollute our environment. The Land Use Update
Is 7contains our Mission Statement which requires that new development be consistant with
4 A,r, Pittsboro's rural heritage insuring protection of the environment while enhancing the
quality of life for all citizens. However, we are between a rock and a hard place on the
nitrogen issue.
If you can provide any insights into how we should proceed on the sensitive, yet critical
issue the Commissioners and I would be very grateful.
Respectfully,
Charles R. Devinney
Mayor

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
January 14, 2000
Mr. Hugh Montgomery, Town Manager
Town Manager
P.O. Box 759
Pittsboro, North Carolina 27312
A7A
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
NPDES Permit NC0020354
Pittsboro WWTP
Chatham County
Dear Mr. Montgomery:
The Division of Water Quality received your request, on behalf of the Town of Pittsboro, to correct
the prior modifications of the Town's NPDES effluent monitoring/ limitation sheets. Specifically, an
error had been carried over from the modification dated September 25, 1998.
This permit modification is being issued to correct the instream monitoring requirement for
dissolved oxygen, temperature, fecal coliform, and conductivity. The previous effluent sheet specified
instream monitoring as 3/week on a year round basis. The attached effluent sheet reflects the correct
instream monitoring requirement, in accordance with 15A NCAC 2B .0508, as 3/week during June,
July, August, and September and once per week during the remainder of the year [see Footnote 1].
Please find enclosed the revised Effluent Limitations and Monitoring Requirements page [summer
and winter requirements have been combined into one effluent sheet]. Additionally, the toxicity testing
requirement language has been modified in accordance with the Division's whole effluent toxicity
enforcement policy effective July 1999. These pages should be inserted into your permit. The old
pages may then be discarded. 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.
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 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.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper

If you have any questions concerning these permit modifications, please contact Charles Weaver
at [phone], ext. 511 or Susan Wilson at ext. 510.
Sierely,
L
err T. Stevens
cc: Central Files
Raleigh Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
Aquatic Toxicology Unit
NPDES Unit

Permit NC0020354
A. (l.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
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
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Y
Average_
Measurement
Frequency
Sample le Type
p Yp
,.. i
Sample Location
Flow
0.75 MGD
Continuous
Instantaneous
Influent or Effluent
BOD, 5 day (20°C)2
[Apr. 1 - Oct. 31 ]
5.0 mg/I
7.5 mg/I
3/Week
Composite
Influent & Effluent
BOD, 5 day (202C)2
[Nov. 1 - Mar. 31 ]
10.0 mg/I
15.0 mg/I
3/Week
Composite
Influent & Effluent
Total Suspended Residue2
30.0 mg/I
45.0 mg/I
3/Week
Composite
Influent & Effluent
NH3 as N
2.0 mg/I
3/Week
Composite
Effluent
Dissolved 0xygen3
3/Week
Grab
Effluent,
Upstream & Downstream
Fecal Coliform (geometric mean)
200/100 ml
400/100 ml
3/Week
Grab
Effluent,
Upstream & Downstream
Total Residual Chlorine
3/Week
Grab
Effluent
Temperature
Daily
Grab
Effluent,
Upstream & Downstream
Total Nitrogen (NO2+NO3+TKN)
Quarterly
Composite
Effluent
Total Phosphorus4
2.0 mg/I
(Qtrly Avg)
Weekly
Composite
Effluent
Conductivity
3/Week
Grab
Upstream & Downstream
Chronic Toxicity5
Quarterly
Grab
Effluent
pH6
3/Week
Grab
Effluent
Footnotes:
1. Sample locations: Upstream = at least 100 yards above the outfall; Downstream = at least 100
yards downstream from the outfall. Instream monitoring shall be conducted 3/Week during June,
July, August, and September, and once per week during the remainder of the year.
2. The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of
the respective influent value (85% removal).
3. The daily dissolved oxygen effluent concentration shall not be less than 6.0 mg/1.
4. Compliance shall be based on a quarterly average of weekly samples.
5. Chronic Toxicity (Ceriodaphnia) P/F at 90%; March, June, September & December (see Condition
A.(2.)).
6. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be
monitored three times per week at the effluent by grab sample
There shall be no discharge of floating solids or visible foam in other than trace amounts.

r
s
.s
it
'A. (2.) CHRONIC TOXICITY PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 90 %.
The permit holder shall perform at a minimum, quarterlu monitoring using test procedures outlined in the
"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent
versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998)
or subsequent versions. The tests will be performed during the months of March, June, September, and
December. Effluent sampling for this testing shall be performed at the NPDES permitted final effluent
discharge below all treatment processes.
If 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 II 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.
QCL Version 5/99

sp'eAPI.M.S
TOWN OF
CHARLES R. DEVINNEY
Mayor
HUGH R. MONTGOMERY
Town Manager
PAUL S. MESSICK, JR.
Town Attorney
P.O. Box 759 — 635 East Street
PITTSBORO, N.C. 27312
October 7, 1999
David Goodrich
NPDES Unit
16177 Mail Service Center
Raleigh NC 27699-1617
Dear David Goodrich,
/1111/61.2
BOARD OF COMMISSIONERS
OCT 1 i 1999
DERR - WATER QUALITY
PONT SOURCE BRANCH
GENE BROOKS
PAUL J. TRAGESER, JR.
CASSIE H. WASKO
ETHEL F. BURNS
CLINTON E. BRYAN, JR.
TELEPHONE
[phone]
FAX [phone]
This letter is to request a minor permit modification for The Town Of Pittsboro WWTP, permit#
NC0020354, Chatham County.
On September 25,1998, the Division modified the subject permit in conjunction with approval of the Town's
Pretreatment Program. On the previous permit, we had winter -summer limits on the stream sampling In the
summer, the sampling frequency was 3 times per week and once per week in the winter. On the new permit,
the stream sampling was increased to 3 times per week year round.
We respectfully request that the sampling frequency be returned to three times per week in the summer and
once per week in the winter.
If you have any questions please call Wally Jenkins at 919-542-24-14.
Sincerely,
Mr. ugh Montgomery
Town Manager
CHARTERED 1787

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
April 19, 1999
Mr. Ken Cornatzer
Town Manager
P.O. Box 759
Pittsboro, North Carolina 27312
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
NPDES Permit NC0020354
Pittsboro WWTP
Chatham County
Dear Mr. Cornatzer:
On September 25, 1998, the Division modified the subject permit in conjunction with approval of
the Town's pretreatment program. A permit modification was issued on March 2, 1999, to correct
typographical errors on the Supplement to Permit Cover page and in the description of instream
sampling locations. This permit modification is being issued to correct typographical errors (regarding
the Total Phosphorus limit and winter BOD limit) later discovered by personnel in the Division's
Raleigh Regional Office and Compliance Enforcement Unit.
Please find enclosed the revised Effluent Limitations and Monitoring Requirements pages. These
pages should be inserted into your permit. The old pages may then be discarded. 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.
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 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 [phone], extension 511.
cc: Central Files
Raleigh Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
NPDES Unit
Sincerely,
P.O. Box 29535, Raleigh, North Carolina 27626-0535
An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper
f-t."1err T. Stevens
Telephone [phone] FAX [phone]

Permit NC0020354
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — SUMMER
(April 1 — October 31)
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
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Measurement
Frequency
Sample Type
Sample Locationl
Flow
0.75 MGD
Continuous
Instantaneous
Influent or Effluent
BOD, 5 day (20°C)2
5.0 mgll
7.5 mgll
3NVeek
Composite
Influent & Effluent
Total Suspended Residue2
30.0 mgll
45.0 mg/I
31Week
Composite
Influent & Effluent
NH3 as N
2.0 mgll
3NVeek
Composite
Effluent
Dissolved Oxygen3
3/Week
Grab
Effluent,
Upstream & Downstream
Fecal Coliform (geometric mean)
200/100 ml
400/100 ml
3/Week
Grab
Effluent,
Upstream & Downstream
Total Residual Chlorine
3NVeek
Grab
Effluent
Temperature
Daily
Grab
Effluent,
Upstream & Downstream
Total Nitrogen (NO2+NO3+TKN)
Quarterly
Composite
Effluent
Total Phosphorus4
2.0 mgll
Weekly
Composite
Effluent
Conductivity
3/Week
Grab
Upstream & Downstream
Chronic Toxicity5
Quarterly
Grab
Effluent
pH6
3/Week
Grab
Effluent
Footnotes:
1. Sample locations: Upstream = at least 100 yards above the outfall; Downstream = at least 100
yards downstream from the outfall.
2. The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of
the respective influent value (85% removal).
3. The daily dissolved oxygen effluent concentration shall not be less than 6.0 mg/1.
4. Compliance shall be based on a quarterly average of weekly samples.
5. Chronic Toxicity (Ceriodaphnia) P/F at 90%; March, June, September & December (see Condition
A.(3.)).
6. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be
monitored three times per week at the effluent by grab sample
There shall be no discharge of floating solids or visible foam in other than trace amounts.
(5Pm-5P of
�. (� L I T I OA)

.•
Permit NC0020354
e
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - WINTER
(November 1- March 31)
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
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Measurement :, .
Frequency
.Sample Type
Sample Locatuonl
Flow
0.75 MGD
Continuous
Instantaneous
Influent or Effluent
BOD, 5 day (20°C)2
10.0 mg/I
15.0 mg/I
3/Week
Composite
Influent & Effluent
Total Suspended Residue2
30.0 mgll
45.0 mg/I
3/Week
Composite
Influent & Effluent
NH3 as N
2.0 mg/I
3/Week
Composite
Effluent
Dissolved 0xygen3
3/Week
Grab
Effluent,
Upstream & Downstream
Fecal Coliform (geometric mean)
200/100 mi
400/100 ml
3/Week
Grab
Effluent,
Upstream & Downstream
Total Residual Chlorine
.
3/Week
Grab
Effluent
Temperature
Daily
Grab
Effluent,
Upstream & Downstream
Total Nitrogen (NO2+NO3+TKN)
Quarterly
Composite
Effluent
Total Phosphorus4
2.0 mg/I
Weekly
Composite
Effluent
Conductivity
3/Week
Grab
Upstream & Downstream
Chronic Toxicity5
Quarterly
Grab
Effluent
pH6
3/Week
Grab
Effluent
Footnotes:
1. Sample locations: Upstream = at least 100 yards above the outfall; Downstream = at least 100
yards downstream from the outfall.
2. The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of
the respective influent value (85% removal).
3. The daily dissolved oxygen effluent concentration shall not be less than 6.0 mg/ 1.
4. Compliance shall be based on a quarterly average of weekly samples.
5. Chronic Toxicity (Ceriodaphnia) P/F at 90%; March, June, September & December (see Condition
A.(3.)).
6. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be
monitored three times per week at the effluent by grab sample
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Re: Pittsboro permit modification •
•
Subject: Re: Pittsboro permit modification A
Date: Thu, 11 Mar 1999 15:31:52 EST
From: "Ted A. Cashion" <[e-mail]>
Organization: DENR - Raleigh Regional Office
To: "Charles Weaver" <[e-mail]>
CC: KSCHUSTER@NROAR13
Good deal, but the previous permit had total P as a quarterly
average, the modification has a monthly average. The cover letter to
the Town stated the changes made to the modification but did not
mention the total P change. Recommend we notify the Town officially,
or we'll hear about it in remission somewhere down the road.
Or is the Division doing monthly averages now for total P???
It's a good idea, the computer can flag violations for us, but please
inform regions, (and facilities).
Thx,
TC
> Date: Wed, 10 Mar 199913:18:48 -0500
> From: "Charles Weaver" <charles [e-mail]>
> To: 'Ted A. Cashion" <Ted Cashion@ ro.enr.state.nc. us>
, Bob Sledge <bob s/[e-mail]>
> Subject: Re: Pittsboro permit modification
> Ted, I've already issued a correction for the sampling locations and for
> the components list on the Supplement page. A copy should reach the RRO
> any day now.
>
> I did not change any of the limits.
> FYI....
1 of 1 4/7/99 7:47 AM

State of North Carolina
., Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
March 2, 1999
Mr. Ken Cornatzer
Town Manager
P.O. Box 759
Pittsboro, North Carolina 27312
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
NPDES Permit NC0020354
Pittsboro WWTP
Chatham County
Dear Mr. Cornatzer:
On September 25, 1998, the Division modified the subject permit in conjunction with approval of
the Town's pretreatment program. A review of the permit file by personnel from the Division's Raleigh
Regional Office noted typographical errors on the Supplement to Permit Cover page and in the
description of instream sampling locations. This permit modification is being issued to correct those
errors.
Please find enclosed the revised permit pages. These pages should be inserted into your permit.
The old pages may then be discarded. 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.
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 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 [phone], extension 511.
cc: Central Files
Raleigh Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
NPDES Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535
An Equal Opportunity Affirmative Action Employer
Si cerely,
Preston Howar, Jr., P.E.
Telephone [phone] FAX [phone]
50% recycled / 10% post -consumer paper

Permit NC002034
4 • ,
6
SUPPLEMENT TO PERMIT COVER SHEET
The Town of Pittsboro is hereby authorized to:
1. Continue to operate an existing 0.75 MGD extended aeration wastewater
treatment system consisting of the following components:
• Mechanical barscreen
• Diffused aeration basins
• Clarifiers
• Phosphorus removal
• High -rate sand filters
• Sludge thickening
• Aerobic sludge digestion
• UV disinfection
• Cascade post -aeration
The facility is located at the Pittsboro WWTP on the Small Street Extension .
southeast of Pittsboro in Chatham County.
2. Discharge from said treatment works at the location specified on the attached map
into Roberson Creek, classified WS-IV NSW waters in the Cape Fear River Basin.

Permit NC0020354
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — SUMMER
(April 1 — October 31)
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
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Measurement
Frequency
Sample Type
Sample Locationl
Flow
0.75 MGD
Continuous
Instantaneous
Influent or Effluent
BOD, 5 day (20°C)2
5.0 mgll
7.5 mg/I
3/Week
Composite
Influent & Effluent
Total Suspended Residue2
30.0 mg/I
45.0 mg/I
3/Week
Composite
Influent & Effluent
NH3 as N
2.0 mg/1
3/Week
Composite
Effluent
Dissolved 0xygen3
3/Week
Grab
Effluent,
Upstream & Downstream
Fecal Coliform (geometric mean)
200/100 ml
400/100 ml
3/Week
Grab
Effluent,
Upstream & Downstream
Total Residual Chlorine
31Week
Grab
Effluent
Temperature
Daily
Grab
Effluent,
Upstream & Downstream
Total Nitrogen (NO2+NO3+TKN)
Quarterly
Composite
Effluent
Total Phosphorus
2.0 mg/1
Weekly
Composite
Effluent
Conductivity
3/Week
Grab
Upstream & Downstream
Chronic Toxicity4
Quarterly
Grab
Effluent
pH5
3/Week
Grab
Effluent
Footnotes:
1. Sample locations: Upstream = at least 100 yards above the outfall; Downstream = at least 100
yards downstream from the outfall.
2. The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of
the respective influent value (85% removal).
3. The daily dissolved oxygen effluent concentration shall not be less than 6.0 mg/1.
4. Chronic Toxicity (Ceriodaphnia) P/F at 90%; March, June, September & December (see Condition
A.(3.)).
5. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be
monitored three times per week at the effluent by grab sample
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0020354,
4
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — WINTER
(November 1 — March 31)
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
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Measurement
Frequency
Sample Type
Sample Locationl
Flow
0.75 MGD
Continuous
Instantaneous
Influent or Effluent
BOD, 5 day (20°C)2
5.0 mg/I
15.0 mg/I
3/Week
Composite
Influent & Effluent
Total Suspended Residue2
30.0 mg/l
45.0 mg/I
3/Week
Composite
Influent & Effluent
NH3 as N
2.0 mg/I
3/Week
Composite
Effluent
Dissolved Oxygen3
3/Week
Grab
Effluent,
Upstream & Downstream
Fecal Coliform (geometric mean)
200/100 ml
400/100 ml
3/Week
Grab
Effluent,
Upstream & Downstream
Total Residual Chlorine
3/Week
Grab
Effluent
Temperature
Daily
Grab
Effluent,
Upstream & Downstream
Total Nitrogen (NO2+NO3+TKN)
Quarterly
Composite
Effluent
Total Phosphorus
2.0 mg/I
Weekly
Composite
Effluent
Conductivity
3lWeek
Grab
Upstream & Downstream
Chronic Toxicity4
Quarterly
Grab
Effluent
pH5
3/Week
Grab
Effluent
Footnotes:
1. Sample locations: Upstream = at least 100 yards above the outfall; Downstream = at least 100
yards downstream from the outfall.
2. The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of
the respective influent value (85% removal).
3. The daily dissolved oxygen effluent concentration shall not be less than 6.0 mg/1.
4. Chronic Toxicity (Ceriodaphnia) P/F at 90%; March, June, September & December (see Condition
A.(3.)).
5. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be
monitored three times per week at the effluent by grab sample
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Pittsbbro mod (NC0020354)
-.
6
Subject: Pittsboro mod (NC002O354)
Date: Tue, 02 Mar 1999 09:49:51-0500
From: Charles Weaver <[e-mail]>
To: Robert Farmer <robert [e-mail]>, [e-mail]
(Ted, Robert forwarded your original message to Bob Sledge over to me.)
This message is in response to the points both of you raised concerning this permit:
• The permit modification was done by Dana Folley when Pretreatment approved the Town's pretreatment
program. It was deemed simpler to have Dana prepare one mod that would cover everything, rather than
have me do one mod and have Dana do an additional mod (for the Pretreatment stuff only).
• Nothing was changed on IMS because these were minor modifications, which aren't tracked on the
mainframe.
• The modification should have been copied to Point Source Compliance but wasn't - that's why Robert didn't
know about it.
I'll make the corrections you requested to the permit and route the usual copies to the RRO and to Compliance.
CHW
1 of 1 3/2/99 9:50 AM

pittsbw„ permit
•
Subject: pittsboro permit �� cU -z�
Date: Thu, 18 Feb 1999 12:54:44 EST 4
From: "Ted A. Cashion" <[e-mail]>
Organization: DENR - Raleigh Regional Office
To: [e-mail]
BS,
I was just informed by the Town they had a permit modification
September 25, 1998. This was due to a pretreatment program
approval.. In this modification, a tox requirement was included, as
well as an adjustment of the ammonia limit, which is 2.0 mg/1 year
round now.
This permit that was issued also has the incorrect stream
same it ng locations (U-at Hwy 70 b ass bridge, D-at Hwy 70-A bridge).
The last time 0-cation. 1
e ieve it is in Hills orough somewher, thou h.
U should be 100 yds from outfall, D should be 100 yds from outfall,
per last permit. Also, there is nogri removal facilities, as
listed in the permit. As long as we're fixing the permit, we might
as well delete this item from the permit description.too.
Can you check on this permit, have it entered on IMS, have Permits
issue another permit with these modifications���'
We already had to rescind 1 NOV, hopefully no more will have to be
done.
..Thanks for-your_time, give me a shout if I can help.
Struggling at the RRO,
TC
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1 of 1
2/22/99 10:08 AM