NC0026441_Permit Issuance_20020513

NPDES DOCYNItNT SCAMM614; COVER :iNEET
NPDES Permit:
NCO026441
Siler City WWTP
Document Type:
Permit Issuance >
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Engineering Alternatives Analysis
201 Facilities Plan
Instream Assessment (SOC)
Correspondence
Permit History
Date Range:
Document Date:
May 13, 2002
THIS DOCUMENT IS PRINTED ON REUSE PAPER - IGNORE ANY CONTENT ON THE
REVERSE SIDE

�. WATF,Q
• r.
Terry Green
Director .of Public Works
311 North Second Street
Town of Siler City, North Carolina
Dear Mr. Green:
27344
Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Gregory J. Thorpe, Ph D, Acting Director
Division of Water Quality
May 13, 2002
Subject: FINAL NPDES Permit NCO026441
Siler City VWUTP
Chatham County
In response to your request to renew the subject permit, the Division of Water Quality (the Division) has
reviewed and approved your application for Siler City's wastewater treatment plant (WWTP), received May 8, 2001.
The Division hereby transmits your final 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 (or as subsequently amended).
Concerning Loves Creek. The Siler City WWVI'P discharges to Loves Creek, a waterbody officially included on
North Carolina's 303(d) list as an impaired stream. This means that Loves Creek does not meet Water Quality
Standards, and it is the Division's charge through the EPA and the Clean Water Act to recover and improve Loves
Creek. Although non -point sources contribute to this degradation, the Siler City VVWTP comprises 96% of this creek
under low -flow conditions and is therefore identified as a potential significant contributor to stream degradation. The
Division will therefore continue to carefully monitor compliance at your facility. Ultimately, the removal of this
discharge may be necessary.
Concerning Ammonia. The Division may re -open this permit to require weekly average limits for ammonia.
After calculating allowable concentrations, the Division will perform an analysis of past ammonia data to determine if
there is reasonable potential for this discharge to exceed these potential limits. If there is, this permit will be re-
opened. If there is not, the permit will not be re -opened, but will contain weekly average limits for ammonia upon
renewal.
Concerning Reasonable Potential Analyses. The Division conducted Reasonable Potential Analyses (RPA)
on contaminants of concern, potential toxicants and metals considering Significant Industrial Users (SIUs), previous
effluent monitoring and this facility's Pretreatment Program. These analyses evaluate "reasonable potential" for
parameters to exceed North Carolina instream Water Quality Standards. Having concluded its review of stream.
conditions, Siler City's compliance record and the RPA, the Division offers the following comments and changes to
your previous permit.
Concerning Revised Limits, and Monitoring Frequencies. A total of six parameters show reasonable
potential to exceed instream Water Quality Standards. Therefore, new parameter limits and more stringent
monitoring frequencies have been added to the permit. Several parameters do not show reasonable potential and
have been deleted. The table on the following page summarizes permit changes.
RX.M5
J
MCDENR
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 [phone] Customer Service
1800 623-7748

NPDES Permit NC0026441
rage-!
v
Parameter
RP'"
Comments / Renewal Action
Copper
Yes
Action Level only, therefore no added limit;
increased monitoring from 2/Month to Weekly
Fluoride
Yes
Added limit; increased monitoring from Quarterly to Weekly
MBAS
Yes
Retained limit; retained weekly monitoring
Mercury
Yes
Retained limit; retained weekly monitoring
Oil & Grease
Yes
Retained limit; retained monitoring at 3/week
Zinc
Yes
Action Level only, therefore no added limit;
increased monitoring from 2/Month to Weekly
Chromium
No
Deleted monitoring from permit
Bis(2-ethylhexyl)phthalate
No
Deleted monitoring from perrmt
Chloroform
No
Deleted monitoring from permit
RP = "Reasonable Potential" to exceed the instream Water Quality Standard.
Concerning Mercury. Mercury continues to be a water quality concern throughout North Carolina. NPDES
permittees have worked with the state to reduce potential risks from this pollutant, including tasks associated with
collecting and reporting more accurate data. The most commonly used laboratory analysis (EPA Method 245.1) has a
detection limit of 0.2 µg/L while the current water quality standard is an order of magnitude lower at 0.012 jig/L. A
more recently approved analytical test (EPA Method 1631) should produce a detection limit below the level of the
standard. This will allow the Division to assess potential water quality impacts from discharges more accurately.
Therefore, beginning on or before September 1, 2003, you will be required to begin using EPA Method 1631 when
analyzing for mercury.
Concerning Instream Sampling. The Division acknowledges that Siler City has entered into a Memorandum
of Agreement (MOD) with the Upper Cape Fear River Basin Association and has therefore deferred stream
monitoring since May 2000. Should Siler City's membership in this association terminate for any reason, Siler City
shall immediately inform the Division of Water Quality and immediately resume responsibility for instream
monitoring requirements as presented in this permit.
If any parts, measurement frequencies, or sampling requirements contained in this permit are unacceptable, you
have the right to an adjudicatory hearing upon written request within thirty (30) days after receiving this letter. Your
request must be in the form of a written petition conforming to Chapter 150B of the North Carolina General
Statutes, and must be filed with the office of Administrative Hearings, 6714 Mail Service Center, Raleigh, North
Carolina 27699-6714. Unless such a demand is made, this permit shall be final and binding.
This permit is not transferable except after notifying the Division of Water Quality. The Division may require
modification, or revocation and re -issuance of this permit Please notice that this permit does not affect your legal
obligation to obtain other permits required by the Division of Water Quality, the Division of Land Resources, the
Coastal Area Management Act, or other federal or local governments. If you have questions, or if we can be of
further service, please contact Joe Corporon at [e-mail]] or [phone], extension 597.
Respectfully,
Original Signed By
David A. Goodrich
Gregory J. Thorpe, Ph.D.
cc: Central Files
Raleigh Regional Office, Water Quality Section
NPDES Unit t
Aquatic Toxicology Unit
EPA Region 4

Permit NCO026441
0
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
PDES
In compliance with the provision of North Carolina General Statute 143-2-15.1. other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended, the
Town of Siler . City
is hereby authorized to discharge wastewater from a facility located at the
Town of Siler City �P
370 Wastewater Plant Road
Chatham County
to receiving waters designated as Loves Creek within the Cape Fear River Basin, in
accordance with effluent limitations, monitoring requirements, and other conditions
set forth in Parts I, II, III and IV hereof.
This permit shall become effective June 1, 2002.
This permit and authorization to discharge shall expire at midnight October 31, 2006.
Signed this day May 13, 2002.
Original Signed By
David X Goodrich
Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO02i—
SUPPLEMENT TO PERMIT COVER SHEET
The Town of Siler City is. hereby authorized to:
1. Continue discharging 4.0 MGD of treated process -contact and domestic wastewater
from a treatment facility consisting of
• automatic and manual bar screens
• grit collection unit
• equalization basin
• influent pump station
• aerobic digester
• filter backwash holding station
• DAF Unit
• four (4) additional equalization basins (not in use)
• sledge transfer station
• lime tower
• alum feed station
• dual oxidation ditches
• dual clarifiers (only one used at a time)
• four (4) tertiary filters
• chlorine contact chamber
• sulfur dioxide addition
• solids removal area (screened and separated; trucked offsite as byproduct)
This facility is located at the Siler City WWTP on Wastewater Plant Road near Siler City
in Chatham County.
2. Discharge from said wastewater treatment works through OutfaU 001 into Loves Creek
(see attached map), a stream classified as C waters within the Cape Fear River Basin.

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1
Town of Siler City WWTP
Latitude: 350 43' 45" N State Grid/Ouad: E 21 NW / Siler City, NC
Longitude: 790 25' 42" W Permitted Flow: 4.0 MGD
Receiving Stream: Loves Creek Drainage Basin: Cape Fear River Basin
Stream Class: C Sub -Basin: 03-06-12
� rt�:,:;:':�
Facility
Location
not to scale
North
NPDES Permit No. NCO026441
Chatham Count

Permit NC0025441
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning with the effective date and lasting until expiration, the Permittee is authorized to discharge
through Outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below:
PARAMETERS
EFFLUENT LIMHTS
MONITORING
REQUIREMENTS
Monthly
Avers
Weekly
Ave
Daily
Maximum
Measurement
Frequency
Sample
T e
Sample Location
Flow
4.0 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 day, 200C
(April 1 thru October 31 1
5.0 mg/L
7.5 mg/L
Daily
Composite
Influent and Effluent
BOD, 5 day, 20°C
November 1 thru March 31
10.0 mg/L
15.0 mg/L
Daily
Composite
Influent and Effluent
Total Sus ended Solids
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent and Effluent
NH3 as N 2
(April 1 thru October 31
1.0 mg/L
2
Daily
Composite
Effluent
NH3 as N2
November 1 thru March 31
2.0 mg/L
2
Daily
Composite
Effluent
Fecal Coliform(geometric mean
200 / 100 ml
400 / 100 ml
Daily
Grab
Effluent
Total Residual Chlorine (TRC)
17.0
Daily
Grab
Effluent
Temperature °C
Daily
Grab
Effluent
Dissolved Oxygen3
Daily
Grab
Effluent
H4
Daily
Grab
Effluent
Oil and Grease
30.0 m
60.0 mqlL
Weekly
Grab
Effluent
Total Nitrogen
(NO2 + NO3 + TKN)
Monthly
Composite
Effluent
Total Phosphorus 5
ril 1 thru September 30
0.5 mg/L
Weekly
Composite
Effluent
Total Phosphorus 5
October 1 thru March 31
Weekly
Composite
Effluent
Total Copper
Weekly
Composite
Effluent
Fluoride
1.8 mg/L
Weekly
Composite
Effluent
MBAS
0.5 m
Weekly
composite
Effluent
Total Mercu2
0.012 µg/L
Weekly
Composite
Effluent
Total Zinc
Weekly
Composite
Effluent
Chloride
Quarterly
Composite
Effluent
Chronic Toxic' v
Quarterly
Composite
Effluent
Total Phosphorus
(April 1 thru September 30
Weekly
Grab
Upstream & Downstream 8
Dissolved Oxygen
Daily
Grab
Upstream & Downstream $
Temperature CC)
Daily
Grab
Upstream & Downstream 8
Table Footnotes:
1. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15 % of the respective
influent value (i.e., 85% removal is required).
2. The Division may re -open this permit to require weekly average limits for ammonia. After calculating allowable
concentrations, the Division will perform an analysis of past ammonia data to determine if there is reasonable potential for
this discharge to exceed these potential limits. If there is, this permit will be re -opened. If there is not, the permit will not be
re -opened, but will contain weekly average limits for ammonia upon renewal.
3. Daily average dissolved oxygen effluent concentration shall not fall below 6.0 mg/L.
4. The pH shall not fall below 6.0 nor exceed 9.0 standard units.
(continued on next page)

s
Permit NCO026441
Table Footnotes tconti_nued):
5. Compliance shall be based on a calendar -quarter average of weekly samples.
6. Total Mercury (Hg) — Monitoring and analysis for Hg shall include techniques specified by EPA Method 1631.
Compliance with this method shall begin on or before September 1, 2003.
7. Chronic Toxicity (Ceriodaphnia) at 90 %; quarterly during March, June, September, December; See A. (2.).
8. Responsibility to perform Instream Monitoring (U/D) has been assumed by the Upper Cape Fear River Basin Association
through a Memorandum of Agreement (MOA) with the permittee. Should membership in this association terminate for any
reason, the permittee shall immediately notify the Division's NPDES Unit in writing and immediately resume responsibility to
monitor and report this parameter, as specified in this permit
Units: mg/L = milligrams per liter
pg/L, = micrograms per liter
ml = milliliter
BOD = biochemical oxygen demand
NH3 as N = ammonia as nitrogen
Effluent shall contain no floating solids or
foam visible in other than trace amounts.

NPDES Permit No. NC002644i1
SUPPLEMENT TO EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A. (2.) CHRONIC TOXICITY PERMIT LBUT (QUARTERLY)
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, quarterl monitoring using test procedures outlined in the "North Carolina
Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or "North Carolina Phase H
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.
H 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 H 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: Environmental Sciences Branch
North Carolina Division of Water Quality
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.

NPDES PERMIT
DRAFT / FINAL
CHECK LIST
FILE CONTENTS: Facility W(*3-6(�/��
Permit No. S ( Lm- a I7\'y
Left side: /1 1_�
LYE New Tracking Slip.
© Old Tracking Slip.
NPDES Permit Writer:
Right side:
❑ Streamline Package Sheet
L9�
(to region, only if suea lined)
'or
Draft Permit Cover Letter.
19`�
(add new policy text ummarize m changes to permit)
Draft Permit
(order: cover, s p ement, map, effluent sheets, special conditions)
Facility Map
(E-Map: Incl acility; Outfalls; U and D sample locations)
W Fact Sheet.
(document permit writer's issues and re -issue logic)
Li Permit Writer's Notes
(if not in Facts Sheet -- chronology, strategy, DMR Review, RPA, etc.)
IT' Report from Region
E/
(as appropriate -- not needed if streamlined)
Old Permit
El'
(Text, Effluent Sheets and Special Conditions)
Permit Application.
(New Permit or Renewal; any additional permittee correspondence)
YT Acknowledgement Letter
(for Renewal Application, from NPDES Unit)
❑ ermittee Responses
(to acknowledgement letter, if any)
Ir Waste Load Allocation
(reference date; recalculated for current action?)
Note: Italics indicate special conditions not always required or applicable.
L9� Submitted to U / �(�%7" P �' Afor Peer Review: Date Admin cutoff �240ei34?—
L9� Peer Review completed by ''IDate 66Iry�� 2
Permit Mailed Mailed to l�-O� �ifJ� (Region t f) ¢y Date,67�. • • *-�Z
--'�no Cr src hs DF /SQL i
❑ Regional Office Review completed by Date
e Additional Review by _A initiated by Date
fE�'I �SiR�2 {� I�(f Additional Review completed by nQQS- on: Date � p
E� Submitted to 61"PA5f7E Jk4,9)A for Public Notice on Pli Mi &-tZ : Notice Date ���`k►L��
19' Updated Public Notice System (Date) 166 thAkb2 and BIMS. Date Aftklt
123g 22k�PPR?2 � F�
� FINAL submitted to Dave Goodrich for signature on 94ff/)
13 Additional Review
M
C kQ_C`
'_q ,�-C-JCS
��S

Ja�ZED STe�S
A >W
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
<m
REGION 4
ATLANTA FEDERAL CENTER
oe
>:Ftil
61 FORSYTH STREET
PROSE c
ATLANTA, GEORGIA 30303-8960
VIM 0 9 2002
Mr. Joe Corporon
North Carolina Department of Environment and
Natural Resources
Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
SUBJ: NPDES Permit for Town of Siler City WWTP
Permit No. NCO026441
Dear Mr. Corporon:
�4 AY 15 2002
i,
� __ _WATER OUAUTt
� ' ; $0'JRGF_ BRANCH
In accordance with the EPA/NCDENR MOA, we have completed review of the permit
referenced above and have no comments. We request that we be afforded an additional review
opportunity only if significant changes are made to the permit prior to issuance or if significant
comments objecting to the permit are received. Otherwise, please send us one copy of the final
permit when issued.
Sincerely,
Marshall Hyatt, Environmental Scientist
Permits, Grants and Technical Assistance Branch
Water Management Division
Intemet Address (URL) • http://www.epa.gov
Recycled/Recyclable • Primed with Vegetable Oil Based Inks on Recycled Paper (Mlnknum 30% Postconsumer)

DENR / DWQ / NPDES Unit
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES Permit NCO026441
INTRODUCTION
The Town of Siler City Wastewater Treatment Plant (WWTP), herein called Siler City or the
permittee, requires a National Pollutant Discharge Elimination System (NPDES) permit to dispose
treated wastewater to the surface waters of the state. The permittee's 5-year NPDES permit expired
April 30, 2001 and they have requested renewal from the Division of Water Quality (the Division).
This Fact Sheet summarizes background information and rationale used by the Division's NPDES
Unit to determine permit limits and monitoring conditions. This document also contains references to
information sources relevant to this permit renewal (superscripted numbers in order of appearance,
see References).
FACILITY RECORDS REVIEW
Facility Description. Siler City WWTP (Table 1) is a 4.0 MGD publicly owned treatment works
(POTW) utilizing a Grade IV activated sludge wastewater treatment facilities to treat domestic and
industrial wastewater. The treatment system includes automatic and manual bar screens, grit
collection, equalization basin, influent pump station, aerobic digester, filter backwash holding station,
DAF Unit, four additional equalization basins (not in use), sledge transfer station, lime tower, alum
feed station, dual oxidation ditches, dual clarifiers (only one used at a time), four (4) tertiary filters,
chlorine contact chamber, sulfur dioxide addition, and step aeration prior to discharge.
Table 1. Town of Siler City W WTP
Facility Information
A,,,!! Name
Town of Siler City
A licant Address
311 North Second Street, Siler City, NC 27344
Facility Address
370 Wastewater Plant Road, Siler City, NC 27344
Permitted Flow (MGD)
4.0
Type of Waste
Domestic (46%) and Industrial (54%) process wastewater; Primary SIC
Code 4952; WW Code Prim. 01; Treatment Unit Code 056-3
Related Permit
Slud e: land application W00003226
Facility Class / Permit Status '
Class IV, Major / Renewal
Drainage Basin / County
Cape Fear River Basin / Chatham Count
Miscellaneous
Receiving Stream IA4
Loves Creek
Regional Office
Ralei h
Stream Classification
C
State Grid /
USGS To o Quad
E 21 NW/
Siler City, NC
303(d) Listed?6
Yes -- Impaired
Permit Writer
Joe R. Corporon
Subbasin '7
03-06-12
Date:
28Jan02
Drainage Area (sq. mi.),
7.9
- _ „ .�
Lat. 350 43' 45" Long. 79° 25' 42"
Summer 7Q 10 (cfs)
0.25
Winter 7Q10 (cfs) 7
0.4
30Q2 (cfs)
Average Flow (cfs)
8.7
rWC (%)
96.1 %
Fact SUeet
Rene%ew -- NPDES Permit NC002ti441
1 i April, 2002, Pa,c I

Waste Load Allocation (WLA). The Division prepared the last WLA for the receiving stream in
February 1996 and developed effluent limits and monitoring requirements considering an in -stream
waste concentration (IWC) of 90 %.7 The Division views these limits and monitoring requirements
appropriate for renewal except as outlined below (see Summary of Permitting Approach).
Verifying Existing Stream Conditions. This facility discharges to the lower portion of Loves Creek,
a Class C waterbody, tributary to the Rocky River within Subbasin 30612 of the Cape Fear River
Basin.5 The Division has formally classified this portion of Loves Creek as an "impaired" stream
[DWQ impaired list 303(d)], and notes that this portion of the creek, from the Siler City WWTP
outfall to the Rocky River, is "not supporting" (NS) its intended uses.516 Although the parameters of
impairment have yet to be established, the permittee is recognized as a major point source
discharger and a potential source of impairment.
CORRESPONDENCE
Staff Report. Raleigh Regional Office (RRO) conducted an annual facility inspection and Bob
Mangum prepared a Staff Report dated June 14, 2001. The RRO staff found the facility in good
condition and in compliance with the permit. The RRO recommended that the NPDES Unit renew the
permit.
Division Records and Renewal Application. Division records for Siler City date from 1996. The
current permit originally expired on April 30, 2001 but was extended by the Division to better
manage permit renewals to October 31, 2001. The Division received the permittee's request to renew
the permit (Standard Form A) on May 8, 2001.1 The permittee's notes on the application that the
facility "... has not made any changes pertaining to the plant since the last permit was issued."
COMPLIANCE REVIEW
DMR Instream and Effluent Data Review. The Division reviewed 36 months (January 1999
through December 2001) of Discharge Monitoring Reports (DMRs). Siler City's DMR files for three
years appear regular, thorough, and complete. Total flow for this time period averaged about 2.72
MGD or about 68 % of permitted capacity.11 The highest daily maximum flow rate (6.874 MGD)
was reported for January 24, 1999 but the facility remained in compliance with January's monthly
average limit.
Effluent Chlorine. The permittee is currently restricted by a Total Residual Chlorine (TRC) limit of
17 µg/L and complies by de -chlorinating its effluent.4 Effluent TRC concentrations averaged < 10
µg/L (based on 36 months of data) with maximums reported occasionally at 15 µg/L TRC.11
Considering an Instream Waste Concentration (IWC) of 96.1 %, the Division commends the
permittee's diligence in controlling chlorine.
Fact Shcet
Renewal -- NPDES NC0026141

Instream Dissolved Oxygen and Temperature. Instream dissolved oxygen (DO) and temperature data
appear reasonable and seasonally appropriate." Both summer and winter dissolved oxygen values
averaged consistently above the Stream Standard minimum of 5.0 mg/L for 1999. Although daily
values during the summer of 1999 (June through August) occasionally dropped below 5.0 mg/L, DO
levels were often higher downstream on the same day suggesting that this facility did not contribute
to low instream DO. In May of 2000, instream monitoring was deferred to the Upper Cape Fear
River Basin Association and, as a member under the Memorandum of Agreement, the
permittee discontinued sampling.
Whole Effluent Toxicity (WET) Test. Quarterly monitoring results for Whole Effluent Toxicity
(WET) testing indicates "pass" for the last 16 quarters (January 1998 through December 2001).10'"
Notices of Violation (NOVs) and Penalty Assessment. Siler City received NOVs and penalties for
permit violations issued during this permit cycle. These data are summarized by year in Table 2.
Table 2. Permit Violations and Assessments Jan ary 1999 -- December 2001.
YEAR
PARAMETER
VIOLATION
TYPE
TOTAL
NUMBER
PENALTIES
1999
BOD, 5-day
Weekly Average
14
Yes
Monthly Average-
1
Yes
Total Phosphorus
Monthly Average
1
Total Mercury
DailyMaximum
1
Ammonia (NH3 as N)
Monthly Average
4
Yes
Surfactants (MBAS)
Daily Maximum
3
Dissolved Oxygen
Daily Minimum
1
Total Assessment
$2,344
2000
BOD, 5-day
Weekly Average
3
Yes
Monthly Average
1
Yes
Ammonia (NH3 as N)
Monthly Average
3
Yes
Total Phosphorus
Monthly Average
1
Total Mercury
Daily Maximum
2
Total Assessment
$4358
2001
BOD, 5-day
Weekly Average
7
Monthly Average
2
Yes
Total Mercury
Daily Maximum
1
Yes
Total Phosphorus
Monthly Average
2
Chloroform
Sample Type
1
Total Assessment
1 1
$1,356
Pretreatment Compliance. This NPDES permit requires that the permittee implement its
pretreatment program. Siler City's pretreatment program or Long Term Monitoring Plan was
approved prior to 1996 and was considered during the Reasonable Potential Analysis.$ Siler City
currently services five (5) Significant Industrial Users (SIUs), Table 3. Pretreatment inspections
conducted in September 1999 and -February 2000 included a Headworks Analysis (HWA), to address
compliance issues and possible sources for recognized Uncontrollable Flow, Uncontrollable Load
(BOD and TSS) and Maximum Allowable Industrial Loading for mercury.
Fart Sheet
Renewal -- NPDES NC(4)26441
Pave 3

Table 3. Significant Industrial Users (SIUs)
SIU
INDUSTRY
FLOW
COMMENTS
(MGD
Glendale Group, LTD
Women's sheer hosiery
0.090
Mastercraft Fabrics, LLC
Woven upholstery fabric
0.048
Contributor of ammonia and
mercury
Gold Kist, Inc
Poultry slaughter
0.650
Contributor to ammonia
Townsends, Inc.
Poultry slaughter
0.625
Contributor to ammonia and
mercury
Brookwood Farms, Inc.
Country hams, Pork and
0.018
Beef Barbecue
Considering compliance issues, the Division required Siler City to impose additional limits and
increase monitoring frequencies on various SIUs, particularly for ammonia and mercury.
Reasonable Potential Analysis (RPA). The Division conducted EPA -required RPA on Siler City's
reported data for parameters of concern (POCs) established through effluent and pretreatment
monitoring requirements. Six of eight parameters indicated reasonable potential to exceed respective
instream Water Quality Standards. Parameter monitoring results, RPA, and subsequent permit
renewal actions are summarized in Table 4.
Table 4. Siler City WWTP -- RPA Review Summary and Renewal Action
Parameter,
Samples
Hits
Maximum
Allowable
RP*
Comments /
.(n)
n
Predicted
/n
Renewal Action
Copper
59
57
60.44 µg/L
7.0 µg/L
Yes
Action Level, therefore no
limit; increased monitoring
from 2/Month to Weekly
Chromium
126
3
7.8 µg/L
50.0 µg/L
No
Deleted limit and monitoring
from permit
Chloroform
9
9
24.2 /L
1130
No
Deleted from permit
Fluoride
9
9
3812.9 µg/L
1800.0 µg/L
Yes
Added limit; increased
monitoring from
Quarterly to Weekly
MBAS
126
105
3176.5 µg/L
500.0 µg/L
Yes
Retained limit; No change in
monitoring frequency
Mercury
126
3
0.766 µg/L
0.012 µg/L
Yes
Retained limit; no change in
monitoring frequency;
specified Testing by Method
1631 to be implemented by
01Se 03
Oil & Grease
378
184
55.2 mg/L
30.0 mg/L
Yes
Retained limit; increased
monitoring from
3/Week to Dail
Zinc
58
58
2125.1 µg/L
50.0 µg/L
Yes
Action Level, therefore no
limit; increased monitoring
from 2/Month to Weekly
TOX
19
_
-
All "pass"
(Quarterly)
*RP = "Reasonable Potential" to exceed instream Water Quality Standard.
1,<Ict Sheet
Rtsttc.t ;fl -- NI'IN S NC 0 026441
Page 4

PERMITTING APPROACH SUMMARY
Siler City WWTP comprises 96% of the flow in Loves Creek under minimum flow conditions. Loves
Creek is officially impaired [303(d) listed] from this facility's outfall to its confluence with the Rocky
River. Siler City is recognized as a significant point source within this drainage and is suspected to
contribute to this impairment. Per NC's agreement with EPA, the Permittee shall be given a notice in
the cover letter to comply with mercury test Method 1631 by 01 Sep03.
Effluent Monitoring
Tahle S. Permit Renewal — Summary of Changes/Additions:
Pa> meter
:RP
Comm'Comm'
''-ents-/Renewat.Action
Copper
Yes
Action Level only, therefore no added limit;
increased monitoring from 2/Month to Weekly
Fluoride "
Yes
Added limit; increased monitoring from Quarterly to Weekly
MBAS
Yes
Retained limit; retained weekly monitoring
Mercury ''
Yes
Retained limit; retained weekly monitoring; Added to the cover
letter, "implement EPA Method 1631 by O1 Se 03."
Oil & Grease
Yes
Retained limit; retained monitoring at 3/week
Zinc
Yes
Action Level only, therefore no added limit;
increased monitoring from 2/Month to Weekly
Bis(2-eth the 1) hthalate
No
Deleted monitoring from ermit
Chromium `:
No
Deleted monitoring from permit
Chloroform
No
Deleted monitoring from permit
*RP = "Reasonable Potential" (as defined by EPA) to exceed the instream Water (Quality standard.
Instream Monitoring
Previous Requirements: Total Phosphorous (P)
Dissolved Oxygen (DO)
Temperature
Deferred to the Upper Cape Fear River Basin
Association under MOA (as of May 2000).
Recommended Changes: No changes recommended.
PROPOSED SCHEDULE OF ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
Rat Slicet
Retic w:-il -- N1'l.)1: S NL+{)026-1 -1
Ngc. 5
March 6, 2002.
April 26, 2002

NPDES UNIT CONTACT
If you have questions regarding any of the above information or on the attached permit, please
contact Joe Corporon at [phone] ext. 597.
NAME: DATE:
REFERENCES
1. 2001. NPDES Permit Application Standard Form A, Town of Siler City, due May 4, 2001,
received May 8, 2001.
2. 2001. NPDES Regional Staff Report and Recommendations for the Renewal, for the Town of
Siler City, NPDES Permit No. NCO026441, Raleigh Regional Office, June 14.
3. 2000. Active NPDES Permits List, North Carolina Division of Water Quality, NPDES Unit, on
the web at http:/h2o.enr.state.nc.us/NPDES/NPDESweb.html.
4. 1996. NPDES Permit No.NC0026441. Issued to the Town of Siler City, expired October 31,
2001. Copies obtained through The Division of Water Quality, Central Files, Archdale
Building, 512 N. Salisbury St., Raleigh, North Carolina.
5. 2000. Cape Fear Basinwide Water Quality Plan. North Carolina Division of Water Quality,
Water Quality Section, July.
6. 2000. 303(d) List of North Carolina Impaired Waters - Draft. North Carolina Division of Water
Quality, Water Quality Section. Copies obtained through Planning Branch, Archdale
Building, 512 N. Salisbury St., Raleigh, North Carolina.
7. 1996. NPDES Waste Load Allocation Work Sheet, NPDES Permit No. NC0026441, the Town
of Siler City, (reviewed by Carla Sanderson), January 2.
8. 2001. NPDES Whole Effluent Toxicity Test Results, January 1997 through December 2001,
DENR, Environmental Services Branch, Aquatic Toxicology Unit, June 20.
9. 1999-2001. Discharge Monitoring Reports (DMR) for Effluent (DEM Form MR-1) and instream
monitoring (DEM Form MR-3), NPDES NCO026441 for the Town of Siler City.
Fact Shcct
Renewal -- NPDES NC I026441
Page 6

19Apr02.
Responses to A C mments
by Joe Corporon �
� 4
Subject: EPA Co nts on DRAFT Permit -- Town of Siler City WWTP - NCO026441
Date: Fri, 15 M 2002 15:16:20 -0500
From: Hyatt.M [e-mail]
To: [e-mail]
CC: [e-mail], [e-mail]
Marshall Hyatt: Caroline reviewed this initially and I've finalized the comments. When you
respond, please reply to me and copy her. Thanks
COMMENT 1) This facility has an approved pretreatment program. Our pretreatment
enforcement staff person has asked that we request that the fact sheet include a statement to say
that this NPDES permit requires that the facility implement its approved pretreatment program.
The last sentence in the fact sheet section re pretreatment compliance (pg. 4) comes close to
saying this, but not quite.
RESPONSE: "Pretreatment" sentence included as requested.
COMMENT 2) All POTWs are required, unless impracticable, to include average weekly and
average monthly discharge limitations [40 CFR 122.45(d)(1)]. The draft permit does not include
a weekly average limit for NH3-N. We recognize that this is a global issue awaiting resolution.
RESPONSE: Per recent NC/EPA resolution of the ammonia issue, a footnote has been
added to the effluent table discussing ammonia "reasonable potential analysis" (RPA) and
the Division's options to modify the permit depending on the RPA results.
COMMENT 3) The previous permit has a weekly average BOD, 5-day summer limit of 7.5
mg/l. The draft permit's BOD weekly average summer limit is given as 10.0 mg/l. I didn't see a
rationale for this change in the fact sheet. Please explain.
RESPONSE: Permit Writer's error. Final corrected to reflect previous permit.
COMMENT 4) The previous permit has a weekly average BOD, 5-day winter limit of 15 mg/l.
The draft permit's BOD weekly average winter limit is given as 20.0 mg/l. I didn't see a
rationale for this change in the fact sheet. Please explain.
RESPONSE: Permit Writer's error. Final corrected to reflect previous permit.
Response to EPA Comments -- Page 1 of 2

COMMENT 5) The current permit contains limits for MBAS and Hg. These limits are
missing from Part A.1 of the draft permit. These need to be included, per 40 CFR 122.44(1).
Because these were limited previously, they are not eligible for a compliance schedule here. If
not corrected, this would be a basis for an EPA objection.
RESPONSE: The final permit has been reformatted into one (1) effluent page only (no
compliance period). Concerning MBAS — As requested, previous permit limits have been
retained. Concerning Hg — Per agreement between NC and EPA, a note to the cover letter
specifies that EPA Method 1631 is mandatory on, or before, September 1, 2003.
COMMENT 6) The draft permit contains a Hg limit in Part A.2 (and should in Part A. 1). The
IG report requested that NC specify more sensitive analytical methods as they become available.
We request that you specify use of either Method 1631 C or 1669 in this permit for Hg, since its
detection limit is more sensitive than NC's water quality criterion.
RESPONSE: See response to Comment 5.
COMMENT 7) The NC Standard Form A application was used. Do you have a certification
from this facility that allows NC to use DMR data as the basis for saying the application is
complete? If so, would you fax/send it to us?
RESPONSE: Permittee's Certification Form will be faxed as requested.
.ADDITIONAL CHANGE to the DRAFT — Chromium (Cr). Due to an error by'.the
Permit Writer, Cr was not removed for the draft even though Cr showed no reasonable
potential. Therefore, the final permit and the Fact Sheet have been corrected to reflect
discontinued Cr monitoring.
Response to EPA Comments -- Page 2 of 2

The Chatham Newst
���
ENVIRONMENTAL MANAGEMENT
I �)
COMMISSIONMPDES UNIT
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
NOTIFICATION OF INTENT TO ISSUE
A NPDES WASTEWATER PERMIT
NORTH CAROLINA
On the basis of thorough,staff review
and appplication of NC General Statute
143.21. Public law 92.500 and other
CHATHAM COUNTY
lawful standards. And regulations, the
North Carolina Environmental Manage-
ment Commission proposes to:issue a
AFFIDAVIT OF PUBLICATION
National Pollutant Discharge Elimina-
tion System (NPDES) wastewater dis-
charge Hppermit to the person(s) listed
below45'deays from the pub-
ectiveof
Before the undersigned, a Notary Public of said County and State, duly
e this
lishcommissioned,
qualified, and authorized by law to administer oaths, person-
NPDES Permit Number
NCo026441. Slier City WWTP, 311
North Second Avenue, Slier City, NC
ally appeared
27344 has applied for a permit renewal
for a facility located in Chatham County
discharging treated -wastewater into
Florence Turner who being
the Capeiver
Fear Total
Born. Currently
first duly sworn, deposes and says: that he (she) is
Suspended Residue, fecal coliform,
Total Residual Chlorine, Oil&Grease.
Total Phosphorous (summer), Total
Fluoride, MBAS, and Total
Accounts Receivable Clerk
Chromium,
Mercury are water quality limited. This
discharge may affect future allocations
(Owner, partner, publisher, or other officer or employee
in this portion of the receiving stream.
authorized to make this affidavit)
Written comments i, yarding the ro-
of The Chatham News Publishing Co., Inc., engaged in the publication of a
days after tie pubes :iatEto thisn o0
newspaper known as, The Chatham News, published, issued, and entered as
tics. All comments received prior to that
date are considered in the final determt-
second class mail in the Town of Siler City, in said County and State; that
nations regarding the proposed permit.
he (she) is authorized to make this affidavit and sworn statement; that the
The Director of the NC lofuba-
ter Quality may decide too hoholdd a public
notice or legal advertisement, a true copy of which is attached hereto, was
meeting for the proposed permit should
the Division receive a significant degree
published in The Chatham News on the following dates:
of public interest.
Copies of the draft permit and other
supporting information on file used to
K 14
determine conditions present in the
draft permit are available upon request
and payment of the costs of reproduc-
tion. Mail comments and/or requests for
Information to the NC Division of Water
Quality at the above address or call Ms.
and that the said newspaper in which such notice paper, document, Or
Christie Jackson at
7ude
legal advertisement was published was, at the time of each and eve such
g p every
the
Please include the
se i
extension permit in
NPDES permit number
publication, a newspaper meeting all of the requirements and qualifications
p 9 q
rested ers
n co u i aeon. Division persons
may also visit the Division of Water
of Section 1-597 of the General Statutes of North Carolina and was a quali-
Qualtyat51gh, 2N04s i�ury been Rae
b5:00
NC
fied newspaper within the meaning of Section 1-597 of the General Statues
hours of 8:00 a.m. and p.m. to
review information on file.
of North Carolina.
_MM14-1fc_
This- 4` day o((fg�
A� t- &
(Signature of person making affidavit) '
Sworn to and subscribed before me, this /Ycv-
day of '✓n�� aaoi
My Commission expires: //. 0 7 . 02er6 S

DENR / DWQ / NPDES Unit
FACT SHEET FOR NPDES PERMIT DEVELOPMENTr
NPDES Permit NC0026441 S�
INTRODUCTION
The Town of Siler City Wastewater Treatment Plant (WWTP), herein called Siler City or the
permittee, requires a National Pollutant Discharge Elimination System (NPDES) permit to dispose t
treated wastewater to the surface waters of the state. The permittee's 5-year NPDES permit expired;
April 30, 2001 and they have requested renewal from the Division of Water Quality (the Division). 47
This Fact Sheet summarizes background information and rationale used by the Division's NPDES
Unit to determine permit limits and monitoring conditions. This document also contains references to
information sources relevant to this permit renewal (superscripted numbers in order of appearance,
see References).
FACILITY RECORDS REVIEW
Facility Description. Siler City WWTP (Table 1) is a 4.0 MGD publicly owned treatment works
(POTW) utilizing a Grade IV activated sludge wastewater treatment facilities to treat domestic and
industrial wastewater. The treatment system includes automatic and manual bar screens, grit
collection, equalization basin, influent pump station, aerobic digester, filter backwash holding station,
DAF Unit, four additional equalization basins (not in use), sledge transfer station, lime tower, alum
feed station, dual oxidation ditches, dual clarifiers (only one used at a time), four (4) tertiary filters,
chlorine contact chamber, sulfur dioxide addition, and step aeration prior to discharge.
Tnhlr t_ Town of Silvr r:ity WWTP
Facility Information
Applicant/FacilityApplicant/Facility Name '
Town of Siler City
Address
311 North Second Street, Siler City, NC 27344
Z!!cant
lit Address1,2370
Wastewater Plant Road, Siler City, NC 27344
Permitted Flow (MGD)
4.0
Type of Waste ' '
Domestic (46%) and Industrial (54%) process wastewater; Primary SIC
Code 4952; W W Code Prim. 01; Treatment Unit Code 056-3
Related Permit
Sludge: land application W00003226
Facility Class / Permit Stams
Class IV, Major / Renewal
Drainage Basin / County
Cape Fear River Basin / Chatham Count
Miscellaneous
Receiving Stream LZA
Loves Creek
Regional Office
Raleigh
Stream Classification
C
State Grid /
USGS To o Quad
E 21 NW/
Siler City, NC
303(d) Listed?
Yes -- Impaired
Permit Writer
Joe R. Corporon
Subbasin 5,7
03-06-12
Date:
28Jan02
Drainage Areas . mi.)'
7.9
Lat. 350 43' 45" Long. 79° 25' 42"
Summer? 10(cfs)
0.25
Winter 7Q10 (cfs)
0.4
30Q2 (cfs)
Avera a Flow (cfs)
8.7
IWC (%)
96.1 %
Pact Sheet
Renewal -- NPDES Peiinit NC0026441
Page I

Waste Load Allocation (WLA). The Division prepared the last WLA for the receiving stream in
February 1996 and developed effluent limits and monitoring requirements considering an in -stream
waste concentration (IWC) of 90 %.7 The Division views these limits and monitoring requirements
appropriate for renewal except as outlined below (see Summary of Permitting Approach).
Verifying Existing Stream Conditions. This facility discharges to the lower portion of Loves Creek,
a Class C waterbody, tributary to the Rocky River within Subbasin 30612 of the Cape Fear River
Basin 5 The Division has formally classified this portion of Loves Creek as an `impaired" stream
[DWQ impaired list 303(d)], and notes that this portion of the creek, from the Siler City WWTP
outfall to the Rocky River, is "not supporting" (NS) its intended uses.5'6 Although the parameters of
impairment have yet to be established, the permittee is recognized as a major point source
discharger and a potential source of impairment.
CORRESPONDENCE
Staff Report. Raleigh Regional Office (RRO) conducted an annual facility inspection and Bob
Mangum prepared a Staff Report dated June 14, 2001. The RRO staff found the facility in good
condition and in compliance with the permit. The RRO recommended that the NPDES Unit renew the
permit.
Division Records and Renewal Application. Division records for Siler City date from 1996. The
current permit originally expired on April 30, 2001 but was extended by the Division to better
manage permit renewals to October 31, 2001. The Division received the permittee's request to renew
the permit (Standard Form A) on May 8, 2001.' The permittee's notes on the application that the
facility "... has not made any changes pertaining to the plant since the last permit was issued."
COMPLIANCE REVIEW
DMR Instream and Effluent Data Review. The Division reviewed 36 months (January 1999
through December 2001) of Discharge Monitoring Reports (DMRs). Siler City's DMR files for three
years appear regular, thorough, and complete. Total flow for this time period averaged about 2.72
MGD or about 68 % of permitted capacity." The highest daily maximum flow rate (6.874 MGD)
was reported for January 24, 1999 but the facility remained in compliance with January's monthly
average limit.
Effluent Chlorine. The permittee is currently restricted by a Total Residual Chlorine (TRC) limit of
17 µg/L and complies by de -chlorinating its effluent.4 Effluent TRC concentrations averaged < 10
µg/L (based on 36 months of data) with maximums reported occasionally at 15 µg/L TRC."
Considering an Instream Waste Concentration (IWC) of 96.1 %, the Division commends the
permittee's diligence in controlling chlorine.
Rwt Shect
Renewal -- NMES NC0026141
1ase2

Instream Dissolved Oxygen and Temperature. Instream dissolved oxygen (DO) and temperature data
appear reasonable and seasonally appropriate." Both summer and winter dissolved oxygen values
averaged consistently above the Stream Standard minimum of 5.0 mg/L for 1999. Although daily
values during the summer of 1999 (June through August) occasionally dropped below 5.0 mg/L, DO
levels were often higher downstream on the same day suggesting that this facility did not contribute
to low instream DO. In May of 2000, instream monitoring was deferred to the Upper Cape Fear
River Basin Association and, as a member under the Memorandum of Agreement, the
permittee discontinued sampling.
Whole Effluent Toxicity (WET) Test. Quarterly monitoring results for Whole Effluent Toxicity
(WET) testing indicates "pass" for the last 16 quarters (January 1998 through December 2001).10'1t
Notices of Violation (NOVs) and Penalty Assessment. Siler City received NOVs and penalties for
permit violations issued during this permit cycle. These data are summarized by year in Table 2.
Table 2. Permit Violations and Assessments, January 1999 -- December 2001.
YEAR
PARAMETER
VIOLATION
TYPE
TOTAL
NUMBER
PENALTIES
1999
BOD, 5-day
Weekly Average
14
Yes
Monthly Average
1
Yes
Total Phosphorus
Monthly Average
1
Total Mercury
Daily Maximum
1
Ammonia (NH3 as N)
Monthly Average
4
Yes
Surfactants (MBAS)
Daily Maximum
3
Dissolved Oxygen
Daily Minimum
1
Total Assessment
$2,344
2000
BOD, 5-day
Weekly Average
3
Yes
Monthly Average
I
Yes
Ammonia NH3 as
Monthly Average
3
Yes
Total Phosphorus
Monthly Average
1
Total Mercury
Daily Maximum
2
Total Assessment
$4,358
2001
BOD, 5-day
Weekly Average
7
Monthly Average
2
Yes
Total Mercury
Daily Maximum
I
Yes
Total Phosphorus
Monthly Average
2
Chloroform
Sample Type
I
Total Assessment
$1,356
/-01 C(1" FVod V�✓L c �ftU�CJ
Z�Yi es-041?``
Pretreatment Compliance. Her City's pretreatment pro m or Long Term Monitoring Plan was
approved prior to 1996 and as considered during the Reasonable Potential Analysis.s Siler City
currently services five (5) Significant Industrial Users (SIUs), Table 3. Pretreatment inspections
conducted in September 1999 and February 2000 included a Headworks Analysis (HWA), to address
compliance issues and possible sources for recognized Uncontrollable Flow, Uncontrollable Load
(BOD and TSS) and Maximum Allowable Industrial Loading for mercury.
Fact sheet
Renewal -- NPDES NUMl26441
Page 3
�PsT "
b� ✓

Table 3. Significant Industrial Users (SIUs)
SIU
INDUSTRY
FLOW
COMMENTS
(MGD)
Glendale Group, LTD
Women's sheer hosiery
0.090
Mastercraft Fabrics, LLC
Woven upholstery fabric
0.048
Contributor of ammonia and
mercury
Gold Kist, Inc
Poultry slaughter
0.650
Contributor to ammonia
Townsends, Inc.
Poultry slaughter
0.625
Contributor to ammonia and
mercury
Brookwood Farms, Inc.
Country hams, Pork and
0.018
Beef Barbecue
Considering compliance issues, the Division required Siler City to increase and imposes additional
limits and monitoring frequencies on various SIUs, particularly for ammonia and mercury.
Reasonable Potential Analysis (RPA). The Division conducted EPA -required RPA on Siler City's
reported data for parameters of concern (POCs) established through effluent and pretreatment
monitoring requirements. Six of eight parameters indicated reasonable potential to exceed respective
instream Water Quality Standards. Parameter monitoring results, RPA, and subsequent permit
renewal actions are summarized in Table 4.
Table 4. Siler City W WTP -- RPA Review Summary and Renewal Action
Parameter
Samples
Hits
Maximum
Allowable
RP*
Comments /
(n)
(n)
Predicted
/n
Renewal Action
Copper
59
57
60.44 µg/L
7.0 µg/L
Yes
Action Level, therefore no
limit; increased monitoring
th to Weekly
Chromium
126
3
7.8 µg/L
50.0 µg/L
No
XRetained limit No change m
Fluoride
9
9
3812.9 µg/L
1800.0 µg/L
Yes
Added limit; increased
monitoring from
Quarterly to Weekly
MBAS
126
105
3176.5 µg/L
500.0 µg/L
Yes
Retained limit; No change in
monitoring frequency
Mercury
126
3
0.766 µg/L
0.012 µg/L
Yes
Retained limit; No change in
monitoring frequency
Oil & Grease
378
184
55.2 mg/L
30.0 mg/L
Yes
Ahde&limit increased
monitoring from
3/Week to Dail
Zinc
58
58
2125.1 µg/L
50.0 µg/L
Yes
cLevel, therefore no
ion
fincreased monitoring
from 2/Month to Weekly
Chloroform
9
9
24.2 /L
1130
No
Deleted from permit
TOX
19
-
-
-
-
All "pass"
(Quarterly)
*RP = "Reasonable Potential" to exceed instream Water Quality Standard.
Fact Sheet
Renewal -- NPDES NC0020441
Page 4
� l
ucOW
t 1
c�1PC r Dry 1S _ , V ..

PERMITTING APPROACH SUMMARY
Siler City WWTP comprises 96% of the flow in Loves Creek under minimum flow co
Creek is officially impaired [303(d) listed] from this facility's outfall to its confluence
River. Siler City is recognized as a significant point source w . a e and is
contribute to this impairment. Permittee stall be given a c pliance schedule, o
penmut effective date, [o comply with ne lis.
c zan svP(q
E�
fflu nttnito n2
Table 5. Permit Renewal -- Recommended Changes/Additions:
fns. Loves
the Rocky
acted to )/
Parameter
RP
Comments / Renewal Action
Copper
Yes
Action Level only, therefore no added limit;
increased monitoring from 2/Month to Weekly
Fluoride
Yes
Added limit; increased monitoring from Quarterly to Weekly
MBAS
Yes
Retained limit; retained weekly monitoring
Mercury
Yes
Retained limit; retained weekly monitoring
Oil & Grease
Yes
Retained limit; retained monitoring at 3/week
Zinc
Yes
Action Level only, therefore no added limit;
increased monitoring from 2/Month to Weekly
Bis(2-eth the l) hthalate
I No
I Deleted monitoring from permit
Chloroform I
No j
Deleted monitoring from permit
*RP = "Reasonable Potential" (as d fined b EPA)) to exceeq the instreani Water Quality Standard.
Instream Monitoring
Previous Requirements: Total Phosphorous (P)
Dissolved Oxygen (DO)
Temperature
Deferred to the Upper Cape Fear River Basin
Association under MOA (as of May 2000).
Recommended Changes: No changes recommended.
PROPOSED SCHEDULE OF ISSUANCE
Draft Permit to Public Notice: March 6, 2002. /
Permit Scheduled to Issue: April 26, 2002 l�
Fact Sheet
Renewal -- NPDES NC0g026341
PaV 5
0

NPDES UNIT CONTACT
If you have questions regarding any
contact Joe Corporon at (9-T) 733-50
NAME:
REFERENCES
above information or on the attached permit, please
597.
TEO 6(n �k&?
1. 2001. NPDES Permit Application Standard Form A, Town of Siler City, due May 4, 2001,
received May 8, 2001.
2. 2001. NPDES Regional Staff Report and Recommendations for the Renewal, for the Town of
Siler City, NPDES Permit No. NC0026441, Raleigh Regional Office, June 14.
3. 2000. Active NPDES Permits List, North Carolina Division of Water Quality, NPDES Unit, on
the web at http:/h2o.enr.state.nc.us/NPDES/NPDESweb.html.
4. 1996. NPDES Permit No.NC0026441. Issued to the Town of Siler City, expired October 31,
2001. Copies obtained through The Division of Water Quality, Central Files, Archdale
Building, 512 N. Salisbury St., Raleigh, North Carolina.
5. 2000. Cape Fear Basinwide Water Quality Plan. North Carolina Division of Water Quality,
Water Quality Section, July.
6. 2000. 303(d) List of North Carolina Impaired Waters - Draft. North Carolina Division of Water
Quality, Water Quality Section. Copies obtained through Planning Branch, Archdale
Building, 512 N. Salisbury St., Raleigh, North Carolina.
7. 1996. NPDES Waste Load Allocation Work Sheet, NPDES Permit No. NC0026441, the Town
of Siler City, (reviewed by Carla Sanderson), January 2.
8. 2001. NPDES Whole Effluent Toxicity Test Results, January 1997 through December 2001,
DENR, Environmental Services Branch, Aquatic Toxicology Unit, June 20.
9. 1999-2001. Discharge Monitoring Reports (DMR) for Effluent (DEM Form MR-1) and instream
monitoring (DEM Form MR-3), NPDES NCO026441 for the Town of Siler City.
Fact Shect
Renewal -- NPDES tiC0026441
Pare 6

S5 rsc.�( scLL5- c,
- --
S f A) YAA"
LtJ
AJ Tan
OCT- puS \JCCJ & mot r _ ra,�

I

Reasonable Potential Analysis
Request Form
Facility Name
Siler City WWTP
NPDES Number
NC0026441
Permitted Flow Rate (MGD)
4.0. MGD
s7Q10 Stream Flow cfs
s 0.3
Receiving Stream
Loves Creek
Stream Classification
C
30Q2 Stream Flow cfs
Average Stream Flow Qav cfs
8.7
Date Requested:
Projected Date for Completion
(add one week to date requested):
URequested Parameters (Spell out):
►JppATA Arsenic
gP0041 Bis(2-ethylhexyle)phthalate
06 BAT, Cadmium
q p� NO IlQ Chloride
q r4v _ Chloroform
Izt,p (7 No 0 .Chromium
gy'6 90r ....Copper
I eJo 04rA Cyanide
q�rl� RP = Y ..Fluoride
110 OAT -A Lead
126 ,...MBAS
(zt = t( ....Mercury
46 Ak i Molybdenum
ktb OA?A Nickel
3}� (1Qs1( Hof Oil and Grease
nttl MM Selenium
58 cP% Y zinc
-zti
i%I NOTE:
August,28, 2001
September 7, 2001
(reported quarterly — need minimum 12 data points)
(reported quarterly— need minimum 12 data points)
(reported quarterly— need minimum 12 data points)
(weekly)
(2/month)
(reported quarterly— need minimum 12 data points)
(weekly)
(weekly)
(2/month)
Joe requested E-data (XL files) from permittee (28Aug01) — will E-mail.
Pretreatment data available as XL file.

bis (2-e4ylrivmt) ph{kalo, Ve
301 LID
61qC�
uo
°119j
410
am
1-10
glAoo0
L10
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z 10
NGom 2-(044 J
Towno� 91er clr-n
.\QQq _ 2000 _ 2-001

NCDENR-DIVISONOFWATER QUALITY 2B .0300
.0311 CAPE FEAR RIVER BASIN
Classification
Name of Stream Description Class Date Index No.
North Prong Rocky
From source to Rocky River
WS-III
08/03/92
17-43-4
River
Greenbrier Creek
From source to Rocky River
WS-III
08/03/92
17-43-5
Mud Lick Creek
From source to Rocky River
WS-III
O8/03/92
17-43-6
Johnson Creek
From source to Mud Lick
WS-III
O8/03/92
17-43-6-1
Creek
Lacy Creek
From source to Rocky River
WS-III
08/03/92
17-43-7
Rocky River
From a point 0.3 mile
WS-III CA
08/03/92
17-43-(7.5)
downstream of Lacys Creek
to dam at lower water
supply for Siler City
Rocky River
From dam at lower water
C
08/01/98
17-43-(8)
supply reservoir for Siler
City to Deep River
Nick Creek
From source to Rocky River
C
03/01/77
17-43-9
Loves Creek
From source to Rocky River
C
09/01/74
17-43-10
Varnell Creek
From source to Rocky River
C
03/01/77
17-43-11
Meadow Creek
From source to Rocky River
C
09/01/74
17-43-12
Tick Creek
From source to Rocky River
C
07/01/73
17-43-13
Welch Branch
From source to Tick Creek
C
07/01/73
17-43-13-1
Landrum Creek
From source to Rocky River
C
09/01/74
17-43-14
Long Branch
From source to Landrum Creek
C
09/01/74
17-43-14-1
Harlands Creek
From source to Rocky River
C
07/01/73
17-43-15
(Hollands Creek)
Bear Creek
From source to Rocky River
C
04/01/59
17-43-16
Sandy Branch
From source to Bear Creek
C
04/01/59
17-43-16-1
Little Bear Creek
From source to Bear Creek
C
04/01/59
17-43-16-2
Harts Creek
From source to Bear Creek
C
04/01/59
17-43-16-3
DEEP RIVER
From a point 0.4 mile
WS-IV
08/01/98
17-(43.5)
upstream of Rocky Branch to
Cape Fear River (junction
with Haw River)
Rocky Branch
From source to a point 0.3
C
O8/01/98
17-44-(1)
mile upstream of mouth
Rocky Branch
From a point 0.3 mile
WS-IV
O8/01/98
17-44-(2)
upstream of mouth to Deep
River
CAPE FEAR RIVER
From junction of Haw River
WS-IV
08/03/92
18-(1)
and Deep River to a point
0.5 mile upstream of N.C.
Hwy. 42
Wombles Creek (Lonnie
From source to Cape Fear
WS-IV
O8/03/92
18-2
Womble Creek)
River
Little Shaddox Creek
From source to Cape Fear
WS-IV
08/03/92
18-3
River
26

Whole Effluent Toxicity Testing Self -Monitoring Summary January 18. 2002,
FACILITY REQUIREMENT YEAR JAN FEE MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Siler City WWfP rem, cla lim: 90%
1998 —
—
Pass —
—
Pass —
—
Pass —
— Pees
N0002M,11/001 Begm:7/1/1996 Fre,=W. Q P/F + Mnrlun Sry D.
NonCotlgn Single
1999 —
—
Pass —
—
Pass —
—
Pass —
— Pew
Comity: Chaborn Region: RRO Subbasin: CPF12
2CM _
_
Pan —
_
Paw —
_
Pas —
— Pao
PF: CO Sow
2001 —
—
Paw —
—
Pa. —
—
Pass --
-
7QIo:0.25 iwc(%).%.1 Ordtr.
2W2
Silver -Line Plats. Corp. Pane 2410 Nfa lam: WA Rod (grab)
Ross —
—
NCOR23591/001 Begiml/12001 Frar a,q: QP/F + Feb May Aug Nov
+ N.Camp:Sin&
19" —
County Buncomba Region: ARO Subbazim M08
2000 —
PF: 0.096 Sods]
2001 _
Pan
— _
Pass
— —
Pass
— —
Pan
7QIo: 460 IWC(%4.03 Omer:
2012
SibwWe Plants. Cerpontlos Pam241rac Nflim: 90Y.(®ab)
IM —
NCW23591NO2 Begin:I1ln001 I".,: Q PT + Feb May Aug Nov
+ NonComp:Singk
1999 ——
County: Buncombe Region: ARO Subbaitc FR102
2000 —
PF: 0.144 Spxi9
2001 _
Fail
Po. —
H
— —
H
— —
H
7Q10: 460 IWC(%)BAS Omer.
2002
SKF USA(CR Industries) Pa. chr lion: 0.33%
u990 —
Pa.
— —
Peso
— —
Paw
_ _
Pass —
NC0004260/01 Begiml/l/1997 Frequcnry:Q Fab May Aug Nov
+ NonComp:Singlc
1999 —
Fell
NR/FM Pas
tale
Pa. —
NR
— —
Pass —
C..H,.. Garcon Region: MRO Subbaim CTB37
goals —
Pass
— —
Pass
— —
Pas
— —
NRNass —
PR OBI94 saecid
2001 _
Po.
— —
Pass
— —
Pass
— —
Pas
7QIo: 6.7 IWC(%)9.33 Omit:
2002
SKP USA Incorporated Fenn cm Inn, WA
1998 N —
—
Pan
— —
Pan —
—
Pan —
—
NC00860S8/001 Bcgin:9/1/1997 Frequency: Q P/F + Jan Apr Jul Oct
+ NonComp: Smglc
1899 Pa. —
—
Pa.
— —
Pass —
_
Pas _
_
Comity: Bunwmbc Region: AUG Subbazal: FRB02
2000 Pass —
—
Paw
— —
Pass —
—
Pass —
—
PF:0.108 Spain
=1 NRIPaw —
—
Paw
— —
Pact —
_
Pae —
7Q10:0.0 IWC(%):90 pits:
TOM
South Ce Sewage LLC PERM CHR LIM: 34%
1998 — —
Paw
—
— Paw
— —
Pass
_. -
Pass
NC0000817/OMI Begim3/i/1994 Forsa :QP/F + MaJun Scp Ott
NOnComp:SINGLE
Ran, — —
Four
—
— Pan
— —
Paw
— —
Pass
County. Now Hanay. Rion: WIRO S.Nmlrc CPF17
2o00 — —
Pan
—
— Pan
— _
Pass
_ _
Pass
PF: 0.10 SP¢id
2001 _ —
Paw
—
— Pass
Pass
7QIo: Tidal IWC(%)94 Omer:
2092
Saute Cop Pam 241br LC50 u monit eOis Md(grab)
Val >100 IN
a100
slog
—
NC0028169/302 BcgiaVV2000 Fraswrq:A
NonComp:
1999 — —
—
_
_ ._
_. _
_
_ _
H
County,SWy Region: NED Sabbaim YAD13
2000 — —
—
—
— H
PF: 0.36 ,,ad
2WI _ _
_
_
_ H
7QIo: 0.0 IWC(%):100.0 Omer.
20412
South Centel Oil Company Pa. do lim: 90%(grvb)
1n90 — —
—
—
— —
— —
—
— —
—
NC0085758s001 Begite2/al Foura :Q Jan Apr Jul Oct
+ NonComp:Smgle
19s) — —
—
County: sandy Region: MRO Subblow: YAD13
211W — —
_
PR 0.0331 Specid
2001 _ —
—
Bt
Late H
H —
—
Pass —
7Q10:0.0 IWC(%):100 Omc:
2002
South Durham WRF Pemtchrlim: 90%
Y18n0 Pan —
—
Paw
— —
Pass —
—
Pass —
—
NCON7597/001 Begina0/1/1996 Fosaaary:QPN + Jan Apr Jul Oct
NonComp:Smglc
1999 Paw —
—
Pan
— —
Paw —
—
Pass —
—
County: Both. Rcgimn RRO Subbazi. CPF05
2009 Pan —
—
Pan
— —
Pins —
_
Pan _
_
PF. 20.0 Spat
2001 Pow —
—
Paw
Pa. —
Pass
Pan
7010:0.15 IWC(%):99.5 Order:
2002
Soahahem, low Yam cm 1. VP/
union —
— —
— — — —
— —
— — —
NCW86927N01 BegintIV112000 Fosioncy:Q Jan Apr Jul Oct + NonComp:Single
lung —
— —
— _
County: Durham Region: RRO Sttbb d. CPFO5
2WO —
— _
_ _
PF: 0.0144 Souia
2WI N
— —
N — — N
— —
Fail 94.9
7Q10: 0.0 IWC(••/.):100 peer:
2002
Southern Stem CaopA.S. Introiiaer P. Nit lira: 3%(grab)
108 —
Pau —
— Fan Pa. —
Pau —
— Lot. Pass
NC'0082821/1101 Begiall/1/3000 Postnatal Fab May Aug Nov + NonComp:Singlc
1999 —
Paw —
— H — —
H —
— Pau —
Coutty: hadell Region: MRO Subbain: YADU6
20ay —
Pan —
— NRM — —
H —
— NRM —
PF: 0.144 Special
2WI Pass
NR NR
Fall NR/H — —
H —
— Leta
7QIo: 7.5 IWC(Y.)2.89 thd,,.
2002
LEGEND:
PERM=Permit Requ'vammt LET=Administrative Lm.-Targa Frvlumcy= Monitoring Requmry:Q-(JurteAy; M. Maturity; BM. Bimonddy; SA- Semiannually;A- Annually;OWD- Only when dischorging; D. DiswnlinuW monnoring mquimanat
Begin-FimmonNrcquirtJ ]Qlg=Reoeivine shwnlow Bow criterion (cfs) +aq=Mynunitoringitan wmonUytqunfailummM Momhsthat.tinemtass«cur-ax.lan,Apr,JuLOm NonCamp- Car an Compli. Rcquiramrnt
PF=PemtinMBOW(MGD) IWCY.=lattcamwustemnerntmtion PIP =PadFul test AC=Acura CHR=Chmnic
Data Ncal I. Finland Minnow; • - Ci no hiphnio an.; my- Mysid shrimp; ChV -Chronic value; P- Morality ofstated peromusp at high.t concantretion; at- Perfmmed by DWQ Aquatic Tax Unit; bt - Bad brat
Reposing Noraion:—=Data rotsequirtd: NR-Nat tgwuW Facility Activity Saw: 1-Iructive. N - Newly lantsWo cnmvua);H- Active bar not dbrahorginBa-Mom dao aysllable formonth in Vistion; -= ORC signatum needM
41

VIOLATIONS (all Types) for:
Permit: nc0026441 DMRs Between 12-1998 and 12-2001 Region: Se:
Facility Name % County 96
Page: 1 of 3
Report Date: 02/14/02
PERMIT: NCO026441 FACILITY: Siler City Town/ WWTP COUNTY: Chatham REGION: Raleigh
LIMIT VIOLATIONS:Y,S.
1
UNIT OF
CALCULATED
DMR OUTFALL
LOCATION
PARAMETER
VIOLATION DATE
MEASURE
LIMIT
FROM REPORTED
VIOLATION DESCRIPTION
01-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
01/30/99
mg/I
15
17.2
Weekly Average Exceeded
04-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
04/24/99
mg/1
7.5
10
Weekly Average Exceeded
05-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
05/01/99
mg/I
7.5
9.72
Weekly Average Exceeded
05-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
05/15/99
mg/I
7.5
10.6
Weekly Average Exceeded
05-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
05/22/99
mg/1
7.5
10.6
Weekly Average Exceeded
05-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
05/29/99
mg/1
7.5
10.6
Weekly Average Exceeded
07-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
07/17/99
mg/1
7.5
13.82
Weekly Average Exceeded
07-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
07/24/99
mg/I
7.5
16.62
Weekly Average Exceeded
07-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
07/31/99
mg/1
7.5
8.24
Weekly Average Exceeded
09-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
09/18/99
mg/I
7.5
12.2
Weekly Average Exceeded
09-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
09/25/99
mg/I
7.5
15.1
Weekly Average Exceeded
10-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
10/02/99
mg/I
7.5
21.98
Weekly Average Exceeded
10-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
10/23/99
mg/1
7.5
16.19
Weekly Average Exceeded
10-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
10/30/99
mgn
7.5
16.19
Weekly Average Exceeded
10-1999
001
Effluent
BOD, 5-DAY
(20 DEG. Q
10/31/99
mg/I
5
6.38
Monthly Average Exceeded
06-2000
001
Effluent
BOD, 5-DAY
(20 DEG. Q
06/17/00
mg/1
7.5
10.7
Weekly Average Exceeded
06-2000
001
Effluent
BOD, 5-DAY
(20 DEG. Q
06/24/00
mg/1
7.5
10.5
Weekly Average Exceeded
06-2000
001
Effluent
BOD, 5-DAY
(20 DEG. Q
06/30/00
mg/1
5
6.19
Monthly Average Exceeded -
07-2000
001
Effluent
BOD, 5-DAY
(20 DEG. Q
07/29/00
mg/1
7.5
7.9 ✓
Weekly Average Exceeded
04-2001
001
Effluent
BOD, 5-DAY
(20 DEG. Q
04/21/01
1119/1
7.5
7.86 ✓
Weekly Average Exceeded
04-2001
001
Effluent
BOD, 5-DAY
(20 DEG. Q
04/28/01
mg/1
7.5
10.89
Weekly Average Exceeded
04-2001
001
Effluent
BOD, 5-DAY
(20 DEG. Q
04/30/01
mgtI
5
6.18
Monthly Average Exceeded .�.

VIOLATIONS (all Types) for
Permit:
nc0026441
DMRs Between 12-1998 and
12.2001
Region: %
Page: 2of3
Facility Name
%
County %
Report Data: 02/14/02
05-2001
001
Effluent
BOD, 5-DAY (20 DEG. C)
05/12/01
mg/I
7.5
7.56 '�
Weekly Average Exceeded
05-2001
001
Effluent
BOD, 5-DAY (20 DEG. C)
05/19/01
mg/l
7.5
9.91
Weekly Average Exceeded
05-2001
001
Effluent
BOD, 5-DAY (20 DEG. C)
05/31/01
mg/1
5
6.51
Monthly Average Exceeded.,.._,-.
06-2001
001
Effluent
BOD, 5-DAY (20 DEG. C)
06/02/01
mg/I
7.5
7.62
Weekly Average Exceeded
06-2001:
001
Effluent
BOD, 5-DAY (20 DEG. C)
06/30/01
mg/I
7.5
7.58 ✓
Weekly Average Exceeded
09-2001
001
Effluent
ROD, 5-DAY (20 DEG. C)
09/29/01
mg/1
7.5
11.13
Weekly Average Exceeded
01- 1999
001
Effluent
MERCURY, TOTAL (AS HG)
01/25/99
ugI
0.012
0.4
Daily Maximum Exceeded
05-2000
001
Effluent
MERCURY, TOTAL (AS HG)
05/01/00
ug/1
0.012
0.6
Daily Maximum Exceeded
12-2000
001
Effluent
MERCURY, TOTAL (AS HG)
12/05/00
ugl
0.012
0.2
Daily Maximum Exceeded
Adminm
001
Effluent
MERCURY, TOTAL (AS HG)
09/14/01
ug/1
0.012
0.3
Daily Maximum Exceeded
04-1999
001
Effluent
NITROGEN, AMMONIA
04/30/99
mg/1
1
3.55
Monthly Average Exceeded
TOTAL (AS N)
07-1999
001
Effluent
NITROGEN, AMMONIA
07/31/99
mg/1
1
1.36
Monthly Average Exceeded
TOTAL (AS N)
09-1999
001
Effluent
NITROGEN, AMMONIA
09/30/99
mg/I
1
1.14
Monthly Average Exceeded
TOTAL (AS N)
10- 1999
001
Effluent
NITROGEN, AMMONIA
10/31/99
mg/l
1
1.77
Monthly Avemge Exceeded
TOTAL (AS N)
/
01-2000
001
Effluent
NITROGEN, AMMONIA
01/31/00
mg/1
2 !
2.5
Monthly Average Exceeded
TOTAL (AS N)
05-2000
001
Effluent
NITROGEN, AMMONIA
05/31/00
mg(I
1
1.87
Monthly Average Exceeded
TOTAL (AS N)
06-2000
001
Effluent
NITROGEN, AMMONIA
06/30/00
mgn
1
3.26
Monthly Average Exceeded
TOTAL (AS N)
01- 1999
001
Effluent
OXYGEN, DISSOLVED (DO)
01/06/99
mg/1
6
1.9
Daily Minimum Not Reached
09- 1999
001
Effluent
PHOSPHORUS, TOTAL(AS P)
09/30/99
mg/1
0.5
0.55 /
Monthly Average Exceeded
07-2000
001
Effluent
PHOSPHORUS, TOTAL(AS P)
07/31/00
mg/I
0.5
0.82
Monthly Average Exceeded
06- 2001
001
Effluent
PHOSPHORUS, TOTAL(AS P)
06/30/01
mg/1
0.5
0.61
Monthly Average Exceeded
07- 2001
001
Effluent
PHOSPHORUS, TOTAL(AS P)
07/31/01
mg/1
0.5
0.59
Monthly Average Exceeded
01- 1999
001
Effluent
SURFACTANTS (MBAS)
01/25/99
mg/1
0.5
0.6
Daily Maximum Exceeded
05- 1999
001
Effluent
SURFACTANTS (MBAS)
05/24/99
mg/1
0.5
2.
Daily Maximum Exceeded
12- 1999
001
Effluent
SURFACTANTS (MBAS)
12/29/99
mg/I
0.5
0.6
Daily Maximum Exceeded

VIOLATIONS (all Types) for:
Permit: nc0026441
Facility Name I
MONITORING VIOLATIONS:
DMRs Between 12-1998 and 12-2001 Region: %
County %
DMR OUTFALL LOCATION PARAMETER VIOLATION DATE MEASUREMENT FREQUENCY VIOLATION DESCRIPTION
own 001 Effluent CHLOROFORM, DISSOLVED 09/30/01 Quarterly _ Sample Type Violation
Page: 3 of 3
Report Date: 02/14/02

Cal VLQT�
ck
-
a �� -
-
345
-
------
----
--
---- --- ---------
A' CZ
A-'f2,&4
-M C64tO--c1-��

Facility Name =
NPDES k =
Qw (MGD) _
7QIOs (cjs)=
IWC(%)=
Siler City W WTP
NC0026441
4
0.3
95.38
FINAL RESULTS
Copper
Max. Pred Cw 60.4
Allowable Cw 7.3
ESULTS
d Dev. 8.2943
can 15.8
V. 0.5256
data points
59
TS
57
dt Factor
ix. Value
39.0
µg/I
ix. Pred Cw
60.4
µg/I
lowable Cw
7.3
µg/I
Parameter = Copper
Standard = 7.0 µg/I
Date
n <
Actual Data
BDL=1/2DL
Jan-99
1
9
9
Jan-99
2
20
20
Feb-99
3
14
14
Feb-99
4
39
39
Mar-99
5
19
19
Mar-99
6
21
21
Apr-99
7 <
2
I
Apr-99
8
5
5
May-99
9 <
2
1
May-99
10
7
7
Jun-99
11
9
9
Jun-99
12
8
8
Jul-99
13
16
16
Jul-99
14
27
27
Aug-99
15
25
25
Aug-99
16
20
20
Sep-99
17
14
14
Sep-99
18
8
8
Oct-99
19
5
5
Oct-99
20
10
IO
Nov-99
21
9
9
Nov-99
22
17
17
Dec-99
23
19
19
Dec-99
24
24
24
Jan-00
25
36
36
Jan-00
26
12
12
Feb-00
27
30
30
Feb-00
28
13
13
Mar-00
29
16
16
Mar-00
30
14
14
Mar-00
31
8
8

.N-i tn
M-i C�+ N N CK N M N N N �N-+
cq C� l� ,~., ,~_, V7 �O O 'Tt I- W W •M-� C� N N N N M A N t- N "O � N
O O p A p p O O O O Q p A A A p
0 0 0 0 0 0 0 o p 0 0 0 o a o Q 0 0 Q .s au ao Q., o0, > > u 0 9 � ,�� ,�fl �. �. >, >,
Q QI Q Q n rn o o z z A A w w
I

Facility Name =
Siler City W WTP
NPDES # =
NC0026441
Qw (MGD) =
4
7QIOs (cfs)=
0.3
JWC (%) =
95.38
FINAL RESULTS
Chloroform
Max. Pred Cw 124.2
Allowable Cw Not aPOC
ESULTS
J Dev. 2.0823
can .a
V. 0.6038
of data points
Factor =
3.18
Value
7.6 pg/1
Pred Cw
24.2 µg/l
vable Cw
Not aPOC µell
Parameter = Chloroform
Standard = I no standard I pg/I
Date
a <
Actual Data
BDL=1/2DL
Mar-99
1
1.5
1.5
Jun-99
2
1.8
1.8
Sep-99
3
2.0
2.0
Dec-99
4
4.8
4.8
Mar-00
5
2.5
2.5
Jun-00
6
1.9
1.9
Sep-00
7
5.4
5.4
Dec-00
8
7.6
7.6
Mar-Ol
9
3.6
3.6
<< '�> P
b
�

Facility Name =
Siler City W W TP
NPDES # =
NCO026441
Qw (MGD) =
4
7QIOs (cfs)=
0.3
[WC (%) =
95.38
FINAL RESULTS
Flouride
Max. Pred Cw 5348.5
Allowable Cw 1887.1
ESULTS
d Dev. 533.5210
can 1050.8
V. 0.5077
of data points
12
I-HTS
9
Mutt Factor =
2.43
Max. Value
2200.0 µg/l
Max. Pred Cw
5348.5 µg/I
Allowable Cw
1887.1 µgll
Parameter = Flounde
Standard = 1800.0 µg/l
Date
n <
Actual Data
BDL=1/2DL
Mar-99
1
600
600
Jun-99
2
400
400
Sep-99
3
600
600
Dec-99
4
500
500
Mar-00
5
1200•-
1200
Jun-00
6
1000
1000
Sep-00
7
600
600
Dec-00
8
1500
1500
Mar-01
9
1350
1350
Jun-01
10
1360
1360
Sep-01
11
2200
2200
Dec-01
12
1300
1300

Facility Name =
Siler City WWTP
NPDES # =
NCO026441
Qw (MGD) =
4
7QIOs (cfs)=
0.3
IWC M =
95.38
FINAL RESULTS
WAS
Max. Pred Cw
3176.5
Allowable Cw
524.2
ESULTS
d Dev. 189.5142
can 175.9
V. 1.0776
of data points
126
HITS
105
Mutt Factor =
1.59
Max. Value
2000.0 µg/1
Max. Pred Cw
3176.5 µg/1
Allowable Cw
524.2 µg/1
Parameter = MBAS
Standard = 50Q_0 . µgll
Date
n <
Actual Data
BDL=1/2DL
Jan-99
1
200
200
Jan-99
2
200
200
Jan-99
3
200
200
Jan-99
4
600
600
Feb-99
5
200
200
Feb-99
6
200
200
Feb-99
7
200
200
Feb-99
8
200
200
Mar-99
9
200
200
Mar-99
10
200
200
Mar-99
11
300
300
Mar-99
12
300
300
Mar-99
13
200
200
Apr-99
14
200
200
Apr-99
15
100
100
Apr-99
16
200
200
Apr-99
17
200
200
May-99
18
200
200
May-99
19
200
200
May-99
20
200
200
May-99
21
2000
2000
Jun-99
22
200
200
Jun-99
23
200
200
Jun-99
24
200
200
Jun-99
25
200
200
Jun-99
26
200
200
Jul-99
27
300
300
Jul-99
28
400
400
Jul-99
29
200
200
Jul-99
30
200
200
Aug-99
31
200
200
Aug-99
32
200
200
Aug-99
33
200
200
Aug-99
34
200
200
Sep-99
35
200
200
Sep-99
36
200
200
Sep-99
37
200
200
Sep-99
38
200
200
Sep-99
39
400
400
Oct-99
40
200
200
Oct-99
41
400
400
Oct-99
42
200
200
Oct-99
43
200
200
Nov-99
44
200
200
Nov-99
45
300
300
Nov-99
46
200
200

r�3�s
Nov-99
47
200
200
Nov-99
48
200
200
Dec-99
49
200
200
Dec-99
50
300
300
Dec-99
51
200
200
Dec-99
52
600
600
Jan-00
53
100
100
Jan-00
54
210
210
Jan-00
55
<
100
50
Jan-00
56
100
100
Jan-00
57
<
100
50
Feb-00
58
<
100
50
Feb-00
59
<
100
50
Feb-00
60
100
100
Mar-00
61
<
100
50
Mar-00
62
<
100
50
Mar-00
63
160
160
Mar-00
64
100
100
Mar-00
65
100
100
Apr-00
66
<
100
50
Apr-00
67
<
100
50
Apr-00
68
<
100
50
Apr-00
69
<
100
50
May-00
70
<
100
50
May-00
71
<
100
50
May-00
72
100
100
May-00
73
<
100
50
May-00
74
200
200
Jun-00
75
100
100
Jun-00
76
100
100
Jun-00
77
300
300
Jun-00
78
200
200
Jul-00
79
100
100
Jul-00
80
100
100
Jul-00
81
200
200
Jul-00
82
100
100
Aug-00
83
200
200
Aug-00
84
200
200
Aug-00
85
100
100
Aug-00
86
100
100
Aug-00
87
100
100
Sep-00
88
<
100
50
Sep-00
89
100
100
Sep-00
90
<
100
50
Sep-00
91
<
100
50
Oct-00
92
100
100
Oct-00
93
100
100
Oct-00
94
100
100
Oct-00
95
100
100
Oct-00
96
100
100

V
Nov-00
97
100
100
Nov-00
98
100
100
Nov-00
99
100
100
Nov-00
100
100
100
Dec-00
101
200
200
Dec-00
102
200
200
Dec-00
103
100
100
Dec-00
104
100
100
Jan-01
105
100
100
Jan-01
106
100
100
Jan-01
107
<
100
50
Jan-01
108
100
100
Jan-01
109
200
200
Feb-Ol
110
200
200
Feb-01
111
100
100
Feb-01
112
100
100
Feb-01
113
180
180
Mar-00
114
160
160
Mar-00
115
200
200
Mar-00
116
190
190
Mar-00
117
150
150
Apr-01
118
<
100
50
Apr-01
119
<
100
50
Apr-01
120
<
100
50
Apr-01
121
<
100
50
May-01
122
150
150
May-01
123
140
140
May-01
124
110
110
May-01
125
130
130
May-01
126
130
130

Facility Name=
Siler City WWTP
NPDES ff=
NCO026441
Qw(MGD)=
4
7QJ0s(cfr)=
0.3
IWC(%)=
95.38
FINAL RESULTS
Oil & Grease
Max. Pred Cw 55201.5
Allowable Cw 31.5
RESULTS
Sul Dev. 2538.2506
Mean 4537.3
C.V. 0.5594
of data points
378
HITS
184
Malt Factor =
3.37
Max. Value
I6400.Or
Mu. Pred Cw
55201 m
Allowable Cw
31.5 m
Parameter = Oil & Grease
Standard = 30.0 1mg/L
Date
n
.<
Actual Data
BDL=1/2DL
Jan-99
I
<
5000
2500
Jan-99
2
7100
7100
Jan-99
3
<
5000
2500
Jan-99
4
<
5000
2500
Jan-99
5
<
5000
2500
Jan-99
6
5000
5000
Jan-99
7
6800
6800
Jan-99
8
<
5000
2500
Jan-99
9
5200
5200
Jan-99
10
<
5000
2500
Jan-99
11
<
5000
2500
Jan-99
12
<
5000
2500
Feb-99
13
8100
8100
Feb-99
14
<
5000
2500
Feb-99
15
<
5000
2500
Feb-99
16
<
5000
2500
Feb-99
17
5000
5000
Feb-99
18
<
5000
2500
Feb-99
19
<
5000
2500
Feb-99
20
<
5000
2500
Feb-99
21
<
5000
2500
Feb-99
22
<
5000
2500
Feb-99
23
<
5000
2500
Feb-99
24
6800
6800
Mar-99
25
<
5000
2500
Mar-99
26
<
5000
2500
Mar-99
27
10900
10900
Mar-99
28
<
5000
2500
Mar-99
29
<
5000
2500
Mar-99
30
6200
6200
Mar-99
31
8300
8300
Mar-99
32
6400
6400
Mar-99
33
7600
7600
Mar-99
34
<
5000
2500
Mar-99
35
<
5000
2500
Mar-99
36
6000
6000
Mar-99
37
<
5000
2500
Mar-99
38
5200
5200
Mar-99
39
6200
6200
Apr-99
40
<
5000
2500
Apr-99
41
7200
7200
Apr-99
42
5100
5100
Apr-99
43
<
5000
2500
Apr-99
44
<
5000
2500
Apr-99
45
<
5000
2500
Apr-99
46
<
5000
2500
Apr-99
47
5000
5000
Apr-99
48
<
5000
2500
Apr-99
49
<
5000
2500

Apr-99
50
<
5000
2500
Apr-99
51
<
5000
2500
May-99
52
<
5000
2500
May-99
53
<
5000
2500
May-99
54
5300
5300
May-99
55
<
5000
2500
May-99
56
9300
9300
May-99
57
<
5000
2500
May-99
58
<
5000
2500
May-99
59
<
5000
2500
May-99
60
6100
6100
May-99
61
<
5000
2500
May-99
62
<
5000
2500
May-99
63
<
5000
2500
Jun-99
64
<
5000
2500
Jun-99
65
<
5000
2500
Jun-99
66
<
5000
2500
Jun-99
67
<
5000
2500
Jun-99
68
<
5000
2500
Jun-99
69
5100
5100
Jun-99
70
<
5000
2500
Jun-99
71
<
5000
2500
Jun-99
72
<
5000
2500
Jun-99
73
<
5000
2500
Jun-99
74
6400
6400
Jun-99
75
<
5000
2500
Jun-99
76
6500
6500
Jun-99
77
<
5000
2500
Jun-99
78
<
5000
2500
Jul-99
79
<
5000
2500
Jul-99
80
<
5000
2500
Jul-99
81
5900
5900
Jul-99
82
5800
5800
Jul-99
83
7200
7200
Jul-99
84
6000
6000
Jul-99
85
7100
7100
Jul-99
86
7100
7100
Jul-99
87
5500
5500
Jul-99
88
6400
6400
Jul-99
89
6200
6200
Jul-99
90
<
5000
2500
Aug-99
91
7900
7900
Aug-99
92
6500
6500
Aug-99
93
8600
8600
Aug-99
94
8700
8700
Aug-99
95
6700
6700
Aug-99
96
6700
6700
Aug-99
97
7200
7200
Aug-99
98
6400
6400
Aug-99
99
7700
7700
Aug-99
100
6900
6900
Aug-99
101
6400
6400
Aug-99
102
7100
7100

Aug-99
103
10400
10400
Aug-99
104
6600
6600
Sep-99
105
5400
5400
Sep-99
106
7100
7100
Sep-99
107
5800
5800
Sep-99
108
7800
7800
Sep-99
109
6800
6800
Sep-99
110
7700
7700
Sep-99
111
6900
6900
Sep-99
112
10200
10200
Sep-99
113
6000
6000
Sep-99
114
6500
6500
Sep-99
115
6300
6300
Sep-99
116
8300
8300
Sep-99
117
9700
9700
Oct-99
118
6200
6200
Oct-99
119
6000
6000
Oct-99
120
6200
6200
Oct-99
121
7400
7400
Oct-99
122
6300
6300
Oct-99
123
7400
7400
Oct-99
124
7700
7700
Oct-99
125
8300
8300
Oct-99
126
6800
6800
Oct-99
127
6300
6300
Oct-99
128
8200
8200
Oct-99
129
<
5000
2500
Nov-99
130
5500
5500
Nov-99
131
7800
7800
Nov-99
132
<
5000
2500
Nov-99
133
7000
7000
Nov-99
134
<
5000
2500
Nov-99
135
7200
7200
Nov-99
136
7000
7000
Nov-99
137
6400
6400
Nov-99
138
8000
8000
Nov-99
139
5000
5000
Nov-99
140
5500
5500
Nov-99
141
5000
5000
Nov-99
142
6300
6300
Nov-99
143
7500
7500
Dec-99
144
8000
8000
Dec-99
145
<
5000
2500
Dec-99
146
<
5000
2500
Dec-99
147
<
5000
2500
Dec-99
148
6200
6200
Dec-99
149
7200
7200
Dec-99
150
<
5000
2500
Dec-99
151
<
5000
2500
Dec-99
152
<
5000
2500
Dec-99
153
<
5000
2500
Dec-99
154
<
5000
2500
Dec-99
155
5300
5300

Dec-99
156
5500
5500
Jan-00
157
<
5000
2500
Jan-00
158
7100
7100
Jan-00
159
6000
6000
Jan-00
160
5000
5000
Jan-00
161
<
5000
2500
Jan-00
162
<
5000
2500
Jan-00
163
5700
5700
Jan-00
164
5200
5200
Jan-00
165
<
5000
2500
Jan-00
166
<
5000
2500
Jan-00
167
7700
7700
Jan-00
168
<
5000
2500
Jan-00
169
7500
7500
Feb-00
170
6600
6600
Feb-00
171
5000
5000
Feb-00
172
<
5000
2500
Feb-00
173
<
5000
2500
Feb-00
174
<
5000
2500
Feb-00
175
7200
7200
Feb-00
176
8200
8200
Feb-00
177
<
5000
2500
Feb-00
178
7200
7200
Feb-00
179
7000
7000
Feb-00
180
5900
5900
Feb-00
181
9400
9400
Feb-00
182
8800
8800
Mar-00
183
9500
9500
Mar-00
184
5800
5800
Mar-00
185
10200
10200
Mar-00
186
8400
8400
Mar-00
187
8000
8000
Mar-00
188
6200
6200
Mar-00
189
<
5000
2500
Mar-00
190
7300
7300
Mar-00
191
<
5000
2500
Mar-00
192
6000
6000
Mar-00
193
5200
5200
Mar-00
194
5200
5200
Mar-00
195
<
5000
2500
Apr-00
196
<
5000
2500
Apr-00
197
<
5000
2500
Apr-00
198
6200
6200
Apr-00
199
5200
5200
Apr-00
200
7900
7900
Apr-00
201
6700
6700
Apr-00
202
<
5000
2500
Apr-00
203
<
5000
2500
Apr-00
204
6000
6000
Apr-00
205
<
5000
2500
Apr-00
206
<
5000
2500
Apr-00
207
<
5000
2500
May-00
208
<
5000
2500

Py �
May-00
209
<
5000
2500
May-00
210
<
5000
2500
May-00
211
5600
5600
May-00
212
<
5000
2500
May-00
213
5200
5200
May-00
214
5700
5700
May-00
215
<
5000
2500
May-00
216
<
5000
2500
May-00
217
<
5000
2500
May-00
218
<
5000
2500
May-00
219
<
5000
2500
May-00
220
5400
5400
May-00
221
<
5000
2500
Jun-00
222
<
5000
2500
Jun-00
223
8100
8100
Jun-00
224
<
5000
2500
Jun-00
225
5900
5900
Jun-00
226
<
5000
2500
Jun-00
227
<
5000
2500
Jun-00
228
<
5000
2500
Jun-00
229
6800
6800
Jun-00
230
<
5000
2500
Jun-00
231
<
5000
2500
Jun-00
232
6100
6100
Jun-00
233
<
5000
2500
Jun-00
234
<
5000
2500
Jul-00
235
<
5000
2500
Jul-00
236
<
5000
2500
Jul-00
237
7300
7300
Jul-00
238
<
5000
2500
Jul-00
239
5300
5300
Jul-00
240
<
5000
2500
Jul-00
241
<
5000
2500
Jul-00
242
5100
5100
Jul-00
243
<
5000
2500
Jul-00
244
<
5000
2500
Jul-00
245
<
5000
2500
Jul-00
246
<
5000
2500
Jul-00
247
<
5000
2500
Aug-00
248
<
5000
2500
Aug-00
249
<
5000
2500
Aug-00
250
<
5000
2500
Aug-00
251
<
5000
2500
Aug-00
252
<
5000
2500
Aug-00
253
5100
5100
Aug-00
254
<
5000
2500
Aug-00
255
<
5000
2500
Aug-00
256
5300
5300
Aug-00
257
<
5000
2500
Aug-00
258
<
5000
2500
Aug-00
259
11300
11300
Aug-00
260
8800
8800
Aug-00
261
6200
6200

11
Sep-00
262
<
5000
2500
Sep-00
263
9200
9200
Sep-00
264
<
5000
2500
Sep-00
265
<
5000
2500
Sep-00
266
<
5000
2500
Sep-00
267
9700
9700
Sep-00
268
9900
9900
Sep-00
269
6500
6500
Sep-00
270
<
5000
2500
Sep-00
271
<
5000
2500
Sep-00
272
<
5000
2500
Sep-00
273
<
5000
2500
Oct-00
274
6600
6600
Oct-00
275
7600
7600
Oct-00
276
6100
6100
Oct-00
277
10600
10600
Oct-00
278
5700
5700
Oct-00
279
7000
7000
Oct-00
280
<
5000
2500
Oct-00
281
<
5000
2500
Oct-00
282
<
5000
2500
Oct-00
283
7700
7700
Oct-00
284
<
5000
2500
Oct-00
285
7000
7000
Oct-00
286
11500
11500
Oct-00
287
16400
16400
Nov-00
288
<
5000
2500
Nov-00
289
<
5000
2500
Nov-00
290
<
5000
2500
Nov-00
291
<
5000
2500
Nov-00
292
<
5000
2500
Nov-00
293
9200
9200
Nov-00
294
12800
12800
Nov-00
295
9800
9800
Nov-00
296
12700
12700
Nov-00
297
<
5000
2500
Nov-00
298
<
5000
2500
Nov-00
299
<
5000
2500
Nov-00
300
<
5000
2500
Dec-00
301
<
5000
2500
Dec-00
302
5900
5900
Dec-00
303
<
5000
2500
Dec-00
304
6100
6100
Dec-00
305
5500
5500
Dec-00
306
<
5000
2500
Dec-00
307
<
5000
2500
Dec-00
308
<
5000
2500
Dec-00
309
<
5000
2500
Dec-00
310
<
5000
2500
Dec-00
311
<
5000
2500
Dec-00
312
<
5000
2500
Jan-01
313
<
5000
2500
Jan-01
314
6500
6500

Jan-01
315
<
5000
2500
Jan-01
316
<
5000
2500
Jan-01
317
8100
8100
Jan-01
318
<
5000
2500
Jan-01
319
<
5000
2500
Jan-01
320
<
5000
2500
Jan-01
321
12500
12500
Jan-01
322
1200
1200
Jan-01
323
<
5000
2500
Jan-01
324
<
5000
2500
Jan-01
325
5000
5000
Jan-01
326
<
5000
2500
Jan-01
327
<
5000
2500
Feb-01
328
<
5000
2500
Feb-01
329
<
5000
2500
Feb-01
330
<
5000
2500
Feb-01
331
<
5000
2500
Feb-01
332
<
5000
2500
Feb-01
333
<
5000
2500
Feb-01
334
<
5000
2500
Feb-01
335
<
5000
2500
Feb-01
336
5100
5100
Feb-01
337
<
5000
2500
Feb-01
338
<
5000
2500
Feb-01
339
<
5000
2500
Mar-01
340
5000
5000
Mar-01
341
6900
6900
Mar-01
342
<
5000
2500
Mar-01
343
<
5000
2500
Mar-01
344
<
5000
2500
Mar-01
345
<
5000
2500
Mar-01
346
<
5000
2500
Mar-01
347
6700
6700
Mar-01
348
<
5000
2500
Mar-01
349
<
5000
2500
Mar-01
350
<
5000
2500
Mar-01
351
<
5000
2500
Apr-01
352
<
5000
2500
Apr-01
353
<
5000
2500
Apr-01
354
<
5000
2500
Apr-01
355
<
5000
2500
Apr-01
356
5200
5200
Apr-01
357
6900
6900
Apr-01
358
<
5000
2500
Apr-01
359
<
5000
2500
Apr-01
360
<
5000
2500
Apr-01
361
<
5000
2500
Apr-01
362
<
5000
2500
Apr-01
363
<
5000
2500
Apr-01
364
<
5000
2500
May-01
365
6600
6600
May-01
366
6200
6200
May-01
367
<
5000
2500

a
May-01
368
5600
5600
May-01
369
<
5000
2500
May-01
370
<
5000
2500
May-01
371
<
5000
2500
May-01
372
<
5000
2500
May-01
373
5100
5100
May-01
374
5500
5500
May-01
375
<
5000
2500
May-01
376
<
5000
2500
May-01
377
5000
5000
May-01
378
<
5000
2500

Facility Name =
Siler City WWTP
NPDES # =
NCO026441
Qw (MGD) =
4
7Q10s (cfs)=
1 0.3
IWC (%) =
95.38
FINAL RESULTS
Mercury
Max. Pred Cw
0.766
Allowable Cw
0.013
RESULTS
Std Dev. 0.0524
Mean 0.107
C.V. 0.4893
(Number
of data points
126
IIIITS
3
Mult Factor =
1.277
Max. Value
0.600 µg/1
Max. Pred Cw
0.766 µg/1
Allowable Cw
0.013 µg/1
Parameter = Merc
Standard = -0Al2 µg/1
Date n < Actual Data BDL=1/2DL
Jan-99
1
<
0.2
0.100
Jan-99
2
<
0.2
0.100
Jan-99
3
<
0.2
0.100
Jan-99
4
0.4
0.400
Feb-99
5
<
0.2
0.100
Feb-99
6
<
0.2
0.100
Feb-99
7
<
0.2
0.100
Feb-99
8
<
0.2
0.100
Mar-99
9
<
0.2
0.100
Mar-99
10
<
0.2
0.100
Mar-99
11
<
0.2
0.100
Mar-99
12
<
0.2
0.100
Mar-99
13
<
0.2
0.100
Apr-99
14
<
0.2
0.100
Apr-99
15
<
0.2
0.100
Apr-99
16
<
0.2
0.100
Apr-99
17
<
0.2
0.100
May-99
18
<
0.2
0.100
May-99
19
<
0.2
0.100
May-99
20
<
0.2
0.100
May-99
21
<
0.2
0.100
Jun-99
22
<
0.2
0.100
Jun-99
23
<
0.2
0.100
Jun-99
24
<
0.2
0.100
Jun-99
25
<
0.2
0.100
Jun-99
26
<
0.2
0.100
Jul-99
27
<
0.2
0.100
Jul-99
28
<
0.2
0.100
Jul-99
29
<
0.2
0.100
Jul-99
30
<
0.2
0.100
Aug-99
31
<
0.2
0.100
Aug-99
32
<
0.2
0.100
Aug-99
33
<
0.2
0.100
Aug-99
34
<
0.2
0.100
Sep-99
35
<
0.2
0.100
Sep-99
36
<
0.2
0.100
Sep-99
37
<
0.2
0.100
Sep-99
38
<
0.2
0.100
Sep-99
39
<
0.2
0.100
Oct-99
40
<
0.2
0.100
Oct-99
41
<
0.2
0.100
Oct-99
42
<
0.2
0.100
Oct-99
43
<
0.2
0.100
Nov-99
44
<
0.2
0.100
Nov-99
45
<
0.2
0.100
Nov-99
46
<
0.2
0.100
Nov-99
47
<
0.2
0.100
Nov-99
48
<
0.2
0.100
Dec-99
49
<
0.2
0.100

j
Dec-99
50
<
0.2
0.100
Dec-99
51
<
0.2
0.100
Dec-99
52
<
0.2
0.100
Jan-00
53
<
0.2
0.100
Jan-00
54
<
0.2
0.100
Jan-00
55
<
0.2
0.100
Jan-00
56
<
0.2
0.100
Jan-00
57
<
0.2
0.100
Feb-00
58
<
0.2
0.100
Feb-00
59
<
0.2
0.100
Feb-00
60
<
0.2
0.100
Mar-00
61
<
0.2
0.100
Mar-00
62
<
0.2
0.100
Mar-00
63
<
0.2
0.100
Mar-00
64
<
0.2
0.100
Mar-00
65
<
0.2
0.100
Apr-00
66
<
0.2
0.100
Apr-00
67
<
0.2
0.100
Apr-00
68
<
0.2
0.100
Apr-00
69
<
0.2
0.100
May-00
70
0.6
0.600
May-00
71
<
0.2
0.100
May-00
72
<
0.2
0.100
May-00
73
<
0.2
0.100
May-00
74
<
0.2
0.100
Jun-00
75
<
0.2
0.100
Jun-00
76
<
0.2
0.100
Jun-00
77
<
0.2
0.100
Jun-00
78
<
0.2
0.100
Jul-00
79
<
0.2
0.100
Jul-00
80
<
0.2
0.100
Jul-00
81
<
0.2
0.100
Jul-00
82
<
0.2
0.100
Aug-00
83
<
0.2
0.100
Aug-00
84
<
0.2
0.100
Aug-00
85
<
0.2
0.100
Aug-00
86
<
0.2
0.100
Aug-00
87
<
0.2
0.100
Sep-00
88
<
0.2
0.100
Sep-00
89
<
0.2
0.100
Sep-00
90
<
0.2
0.100
Sep-00
91
<
0.2
0.100
Oct-00
92
<
0.2
0.100
Oct-00
93
<
0.2
0.100
Oct-00
94
<
0.2
0.100
Oct-00
95
<
0.2
0.100
Oct-00
96
<
0.2
0.100
Nov-00
97
<
0.2
0.100
Nov-00
98
<
0.2
0.100
Nov-00
99
<
0.2
0.100
Nov-00
100
<
0.2
0.100
Dec-00
101
0.2
0.200
Dec-00
102
<
0.2
0.100

•
Dec-00
103
<
0.2
0.100
Dec-00
104
<
0.2
0.100
Jan-01
105
<
0.2
0.100
Jan-01
106
<
0.2
0.100
Jan-01
107
<
0.2
0.100
Jan-01
108
<
0.2
0.100
Jan-01
109
<
0.2
0.100
Feb-01
110
<
0.2
0.100
Feb-01
111
<
0.2
0.100
Feb-01
112
<
0.2
0.100
Feb-01
113
<
0.2
0.100
Mar-01
114
<
0.2
0.100
Mar-01
115
<
0.2
0.100
Mar-Ol
116
<
0.2
0.100
Mar-Ol
117
<
0.2
0.100
Apr-01
118
<
0.2
0.100
Apr-01
119
<
0.2
0.100
Apr-Ol
120
<
0.2
0.100
Apr-01
121
<
0.2
0.100
May-01
122
<
0.2
0.100
May-01
123
<
0.2
0.100
May-01
124
<
0.2
0.100
May-01
125
<
0.2
0.100
May-Ol
126
<
0.2
0.100

Facility Name =
Siler City WWTP
NPDES # =
NC0026441
Qw (MGD) =
4
7QJOS (cfs)=
0.3
1WC (%) =
95.38
FINAL RESULTS
Zinc
Max. Pred Cw
2125.1
Allowable Cw
52.4
Allowable #/day
0.0
RESULTS
Std Dev. 131.4345
Mean 79.9
C.V. 1.6440
Number
of data points
58
HITS
58
Mult Factor =
2.78
Max. Value
765.0 µg/1
Max. Pred Cw
2125.1 µg/l
Allowable Cw
52.4 µgll
Parameter = Zinc
Standardd1ug/I
Date
n <
Actual Data
BDL=1/2DL
Jan-99
1
33
33
Jan-99
2
43
43
Feb-99
3
765
765
Feb-99
4
18
18
Mar-99
5
36
36
Mar-99
6
35
35
Apr-99
7
26
26
Apr-99
8
512
512
May-99
9
21
21
May-99
10
46
46
Jun-99
11
33
33
Jun-99
12
580
580
Jul-99
13
65
65
Jul-99
14
58
58
Aug-99
15
32
32
Aug-99
16
100
100
Sep-99
17
25
25
Sep-99
18
35
35
Oct-99
19
17
17
Oct-99
20
33
33
Nov-99
21
33
33
Nov-99
22
30
30
Dec-99
23
75
75
Dec-99
24
41
41
Jan-00
25
41
41
Jan-00
26
36
36
Feb-00
27
47
47
Feb-00
28
128
128
Mar-00
29
111
111
Mar-00
30
55
55
Apr-00
31
56
56

t
Apr-00
32
41
41
May-00
33
98
98
May-00
34
57
57
Jun-00
35
54
54
Jun-00
36
55
55
Jul-00
37
50
50
Jul-00
38
48
48
Aug-00
39
79
79
Aug-00
40
50
50
Sep-00
41
13
13
Sep-00
42
54
54
Oct-00
43
82
82
Oct-00
44
51
51
Nov-00
45
100
100
Nov-00
46
55
55
Dec-00
47
50
50
Dec-00
48
40
40
Jan-01
49
60
60
Jan-01
50
85
85
Feb-01
51
52
52
Feb-01
52
56
56
Mar-01
53
29
29
Mar-01
54
38
38
Apr-Ol
55
33
33
Apr-O 1
56
54
54
May-01
57
39
39
May-01
58
48
48

NCURC,MCP,FALLS LAKE TEL:[phone]
Apr 09'02 14:51 No.004 P.01
FAX COVER
Falls Lake Office
Date 0\ 1 r,, aoo--
Number of pages Tncluding cover sheet v
To: �.
c �o
NC Wildlife Resources Commission
Habitat Conservation Program
11421.85 Service Road
Creedmoor, NC 27522
Froom--�
1 /CI,A Aar^
Phone Phone [phone]
Fax Phone Fax Phone [phone]
CC:

4CWRC•,HCP,FRLLS LAKE TEL:[phone] Apr 09'02 14:52 No.004 P.02
North_ Carohna Wi_k Ve Resources Commission. P� _
Charles R. Pullwood, Executive Director
MEMORANDUM
TO: Charles Weaver, NPDES Unit
��DD.tt�v��tslon of Water Qi4ity
FROM: Danielle R. Pender, Piedmont Region Coordinator
Habitat Conservation Program
DATE: 5 April 2002
SUBJECT: Proposed Permit Renewal for Sher City WWTP, Chatham County
NPDES Permit No. NC0026441
Biologists with the North Carolina Wildlife Resources Commission have reviewed the
subject application for impacts to fish and wildlife. Our comments are provided in accordance
with provisions of the Clean Water Act of 1977 (as amended), the Fish and Wildlife
Coordination Act (48 Slat. 401, as amended; 16 U.S.C. 661-667d), and North Carolina General
Statutes (C.S. 113-131 et seq.).
The applicant has submitted a request for apermit renewal for the Siler City Wastewater
Treatment Plant to discharge treated wastewater into the Loves Creek in the Cape Fear River
basin. This WIVTP has had chronic problems in the past, and as of early December 2001, the
Rocky River just downstream of the eonfluonee with Love's Creek has been afflicted with
excessive algae growth. It is our understanding that this plant utilizes chlorine in their treatment
system. Chlorine is acutely toxic to aquatic organisms and forms secondary compounds that are
also detrimental to aquatic life. We are especially concerned with impacts of this project on the
many sensitive species that are found in this system. This system supports the federal and state
endangered Cane Fear shiner (Motropis meWtocholas); federal species of concern and state
threatened brook floater (Alasmidonta vaelcosa), Atlantic pigtoe (Fusconaia masoni), and yellow
latnpmussel (Lurnpsilds cariosa); federal species of concern and state special concern Carolina.
ereekshell (Villosa vaughaniana) and Carolina darter (Etheostonia collts); federal species of
concern and state significantly rare Carolina redhorse (Moxostoma sp.); state threatened creeper
(S'traphitus undulatus); and the state significantly rare notched rainbow (Villosa constriela),
Eastern creekshell ( Villosa delumbis), and a mayfly (Leptohypes robacla).
Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699-1721
Telephone: [phone] ext. 281 • Fax: [phone]

NCWPC,HCP,FALLS LAKE TEL:[phone] Apr 09'02 14:52 No.004 P.03
Page 2
5 April 2002
Siler City WWTP
NPDUS No. INC0026441
We reconunend that the following conditions be incorporated into the pennit to reduce
impacts to fish and. wildlife resources and in particular to listed species.
1. We request that ozone or ultraviolot light systems replace the chlorine systems. These
disinfectants also provide an additional benefit of removing a hazardous material from
the workplace.
2. If not already in place, we suggest the installation of a stand-by power system.
Thank you for the opportunity to provide input during the planning stages for this project.
If we can be of further assistance, please contact our office at [phone].
cc: Garlwid Pardue, USFWS
E-mail: StcT�hen Hall, NHP

wrg Permit NC0026441
A. [I.) EFFLUENT LINIITATIONS 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
Daily
Maximum
Measurement
'Frequency,=
Sample`.
Type
' Sample,
Locations
Flow
4.0 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 day (20°C)2
(April 1—October 31)
5.0 mg4
7.5mgll
Daily
Composite
Influent & Effluent
BOD, 5 day (20°C)2
(November 1 — March 31)
10.0 mgll
15.0 mgll
Daily
Composite
Influent & Effluent
Total Suspended Residue2
30.0 mgll
45.0 mgll
Daily
Composite
Influent & Effluent
NH3 as N
(April 1— October 31) 9
1.0 mgll
1
Daily
Composite
Effluent
NH3 as N
November 1— March 31
2.0 mgll
Daily
Composite
Effluent
Dissolved Oxygen3
Daily
Grab
Effluent, Upstream
& Downstream
Fecal Coliform (geometric mean)
200/100 ml
400/100 ml
Daily
Grab
Effluent, Upstream
& Downstream
Oil and Grease
30.0 m ll
60.0 m ll
) 3/Week
Effluent
Total Residual Chlorine
17.0 ll
Daily
Grab
Effluent
Temperature
Daily
Grab
Effluent, Upstream
& Downstream
Total Nitrogen NO2+NO3+TKN
Monthly
Composite
Effluent
Tota (April 1— September 30
0.5 mg114
Weekly
Composite
Effluent, Upstream
& Downstream
Total Phosphorus
October T- March 31
Weekly
Composite
Effluent, Upstream
& Downstream
C c Tox ci 5
Conductivity
Quarterly
Composite
Effluent
Daily
Grab
Effluent, Upstream
& Downstream
Chromium
52.0 pgt
Weekly
Composite
Effluent
Copper
2/Month
Composite
Effluent
Mercury
0.012 pgn
Weekly
Composite
Effluent
MBAS
0.5 m ll
Weekly
Composite
Effluent
Zinc /L
_
2/Month
Composite
Effluent
Bis 2-eth the I hthal
Quarterly
Composite
Effluent
-ehloroform
Quarterly
Com osite
Effluent
Chloride 11
QuarterlyCom
osite
Effluent
Fluoride ll
Quarter)
Composite
Effluent
H6
6 9
Daily
Grab
Effluent
For instream monitoring requirements and sample locations, see Part III, Condition F.
The monthly average effluent BODS and Total Suspended Residue concentrations shall not exceed 15% of the
respective influent value (85% removal).
4 The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/1.
�51 Compliance shall be based upon a quarterly average of weekly samples.
1� . Chronic Toxicity (Ceriodaphnia) P/F at 90%: March, June, September & December (see Part III, Condition G.).
6. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts. /

AFFIDAVIT OF PUBLICATION
NORTH CAROLINA.
Wake County.
Before the undersigned, a Notary Public of Johnston
County North Carolina, duly commissioned and authorized to
PUBLIC NOTICE
STACAROOLINN,gRTH
administer oaths, affirmations, etc., personally appeared
EP VIIRONEMMENTAAL
Barbara Brown, who, being duly sworn or affirmed, according
CDMM1 SIIOWNPOES
UNIT
to law, doth depose and say that she is Billing Manager -Legal
1617 MAIL SERVICE
Advertising of IRE NEWS AND OBSERVEWPUBLISHING
RALEIGH, NC V699-1617
NOTIFICATION OF
corporation organized and doing business
COMPANY a CO g g
INTENT TO ISSUE A
NPDES WASTEWATER
under the Laws of the State of North Carolina, and publishing
PERMIT
the basis thorough
a newspaper known as THE NEWS AND OBSERVER, in the
n of staff
?view and application of NC
Statute 14.21 Public
City of Raleigh, County and State aforesaid, the said
general
iw 92-5, and other lawful
landlords and regulations,
newspaper in which such notice, paper, document, or legal
le t"I Carolina nt Conn-
lemon Management Conn-
advertisement was published was, at the time of each and
I
fission proposes Di Issue a
(Pollutant Discharge
every
eve such publication, a newspaper meeting all of the
I inni
NPDE$) is System
uaoesl wastewater
requirements and qualifications of Section 1-597 of the
Per-
mMe permit to the peI-
may listed below eisheJa e
General Statutes of North Carolina and was a qualified
f thssnotice. the pabnsnddfe
newspaper within the meaning of Section 1-597 of the
ng
to Proten posed Permit willbe
permit will he
le Phuil
General Statutes of North Carolina, and that as such she
Until
a Publish until ]fdays Dicer
le publishdateecthisd
makes this affidavit; that she is familiar with the books, files
,
Prior
II comments received prior
ihat tlateare consideredin
and business of said corporation and by reference to the files
final tleterminatlons re -
le flp ihepmPosedPerrnit.
grain,
Of said publication the attached advertisement for NC
he Director Pf the NC OivF
as or wafer Damlry ma
DIVISION OF WATER QUALITY was inserted in the
ecide Io ham o puelic meet-
ig far the proposed permit
i'W IFo llivicinn re�evn n
aforesaid newspaper on dates as follows: 03/09/02 /
Account Number: 73350831
r6
The al
06
re few inform d s:ao n:m"io
review information on tile.
fed from the books and files of the aforesaid Corporation and publication.
NPDES Perrmit Number
NC0026"I. Si or City WWTP,
311 North Second Avenue. Si-
City, NC 27344 tl
for a permit renewal far a
facility located in Chatham
,y /
Cr
dischanging treaapplt
treated
waste terinto Loy
wastewater into Loves Creek
--- _
------'-----
lathe Cape Fear River easin-�/
Basin -
J-
Currently Sus ndeBOD5d ammonia,
total Suspended Residue, fe-
Billing Manager -Legal Advertising
'a' Chromerous _m' Fie at To- — Sworn or affirmed to and subscribed before me, this
tot Chromium, Fluoride, e
MBASundToml Mercaryare I1 day of MARCH 2002 AD
water quality limited. This
discharge may affect future In Testimony allocations in this Portion or y Whereof, I have hereunto set my hand
the receiving stream. and affixed my official seal, the day and year aforesaid.
N&O: March 9; 2002
Notary Public
My rssionexpires 2nd day of July 2605.

Draft Permit Review-Siler City W WTP NCO026441
Subject: Draft Permit Review-Siler City W WTP NC0026441
Date: Thu, 14 Mar 2002 09:53:30 -0500
From: Matt Matthews <[e-mail]>
Organization: NC DENR
To: [e-mail]
Joe, WI 1
n�I've reviewed the subject draft permit and have no comments. U �
Thanks for the opportunity to review.
Matt
Matt Matthews
NC DENR/Division of Water Quality
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, NorthiCarolina 27699-1621
v-[phone]
f-[phone]
MailTO:[e-mail]
------------------------------------------
A few observations and much reasoning lead to error;
many observations and a little reasoning to truth.
--Alexis Carrel
1 of 1 3/14/02 11:00 AM

SOC PRIORITY PROJECT: Yes: No:X
If Yes, SOC No.:
NPDES STAFF REPORT AND RECOMMENDATIONS
FOR CITY OF SILER CITY WWTP
Date:6/14/01
To: Water Quality Section
NPDES Permitting Unit
Attention:Joe Corporon
County: Chatham
Permit No.: NCO026441
PART I -GENERAL INFORMATION
1. Facility and Address: Town of Siler City WWTP
370 Wastewater Plant Rd.
Siler City, NC 27344
2. Date of Site Visit: 5/30/01
3. Report Prepared by: Bob Mangum
4. Persons Contacted and Telephone Number: Curtis Brown-ORC-[phone]
5. Directions to Site:From Raleigh take 64W, cross
Rocky River, take 1st left onto wastewater treatment
plant road, facility is at end of road
6. ' Discharge Point(s), List for all discharge points:
Latitude: 35 ° 43' 45"
Longitude: 79 ° 25' 42"
Attach a USGS map extract and indicate treatment facility site and discharge point
on map.
U.S.G.S. Quad No.: E21NW U.S.G.S. Quad Name: Siler City
7. Site size and expansion area consistent with application? Yes:X
Non -Discharge Staff Report
Page 1

' r
No: If No, explain:
8. Topography (relationship to flood plain included):predominently flat
9. Location of nearest dwelling: approximately 600 yards
10. Receiving stream or affected surface waters:Loves Creek
a. Classification: C
b. River Basin and Subbasin No.: 03 0612
C. Describe receiving stream features and pertinent
downstream uses:Loves Creek is tributary to the Rocky River
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: 4.0 MGD
b. What is the current permitted capacity of the Waste Water Treatment facility?
4.0 MGD
C. Actual treatment capacity of the current facility (current design capacity)?
4.0 MGD
d. Date(s) and construction activities allowed by previous Authorization to
Construct issued in the previous two years: none
e. Please provide a description of existing or substantially constructed
wastewater treatment facilities: see attachment
f. Please provide a description of proposed wastewater treatment facilities: n/a
g. Possible toxic impacts to surface waters:none
h. Pretreatment Program (POTWs only):
in development: approved: X
should be required: not needed:
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM permit no.:
WQ0003226
Residual Contractor: EWR
Telephone No.: ffl IMI
Non -Discharge Staff Report
Page 2

b. Residuals stabilization: PSRP:Iime stabilized
PFRP: Other:
C. Landfill:
d. Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating sheet): Class IV
4. SIC Code(s): 4952
Wastewater Code(s) of actual wastewater, not particular facilities Le.., 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)?
2. Special monitoring or limitations (including toxicity) requests:
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: ffifflfflffl
Connection to Regional Sewer System: fflfflfflffl
Subsurface: ffifflfflffl
Other disposal options: ffifflfflffl
5. Other Special Items:
Non -Discharge Staff Report
Page 3

t PART IV - EVALUATION AND RECOMMENDATIONS
The Raleigh Regional Office has received the submittal requesting renewal of the subject
NPDES Permit. A Compliance Evaluation Inspection was performed on this facility on
April 9, 2001 and it was found to be in compliance with its permit requirements. A copy
of that CEI is attached to this report. All submitted information has been reviewed,
therefore it is recommended that this permit be renewed as requested.
Signature
Date
Water Quality Regional Supervisor Date
Non -Discharge Staff Report
Page 4

I �, ('-Q.-
State of North Carolina
Department of Environment
and Natural Resources
Raleigh Regional Office
Michael F. Easley, Governor
William G. Ross Jr., Secretary
April 16, 2001
Mr. Terry Green
Public Works Director
PO Box 769
Siler City, NC 27344
Subject: Compliance Evaluation Inspection
Town of Siler City -Class IV
NPDES Permit No. NCO026441
Chatham County
Dear Mr. Green:
A 0
0
WA
WW
NCDENR
NcR CAROuN Denw wnM OP ,
ENVIRONMENT ANo NAru RESouRCE$
C/r�J
The subject inspection was conducted on April 9, 2001 by myself. The cooperation of Mr.
Curtis Brown-ORC was appreciated. Findings during the inspection were as follows:
1. Treatment units include an automatic and manual bar screen, grit collection, equalization basin,
influent pump station, aerobic digester, filter backwash holding basin, DAF unit, 4 additional
equalization basins (not in use), 2 additional digesters, 1 additional clarifier (not in use), sludge
transfer station, lime tower, alum feed station, dual oxidation ditches, dual clarifiers (only one in
use at a time), 4 tertiary
filters, chlorine contact chamber, sulfer dioxide addition and step aeration prior to discharge.
2. A review of discharge monitoring report (DMR) data submitted showed a violation of mercury
in December 2000.
3. The current permit expires 4/30/01, but a six month extension by this Division.
4. Mr. Brown stated that SYNAGRO land applies there sludge according to the requirements set
forth in Permit No. WQ0003226.
5. Please submit an update on inflow/infiltration (UI) activities the Town performed and what is
planned for 2001. Please indicate the amount of resources expended, amount -of sewer line
replaced/rehabilitated, amount of 1/I removed from the system, and any addition information
regarding I/I.
1628 Mail Service Center, Raleigh, NC 27699-1628 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

.6. Mr. Brown stated that the Town has three pump stations and they all have telemetry and stand-
by power is available.
8. A cursoryreview of December 2000 DMR and laboratory data showed consistent reporting of
results.
9. All flow meters are calibrated quarterly by ISI and checked weekly by ORC.
10. Meritech performs the toxicity tests for this VAVTP and they had no failures.
11. The ORC logbook is up to date and kept on site. All preventative maintenance records are kept
on computer at the facility.
12. Mayor Charles Turner signs all DMR's which is consistent with their permit requirement.
13. The water in the 2 oxidation ditches had good color and no excessive foam. Their are 2
clarifiers, but only one is in use at a time and they are cleaned every 2-3 days.
14. The sludge depth in the chlorine contact basin was about 24 inches, but usually stays about 12-
15 inches, there is a 30 minute detention time in the chamber.
15. The entire facility is fenced and there is a good supply of spare parts on -site, there is also an
o&m schedule on all equipment.
16. The effluent, which flows into Love Creek, appeared clear and free of any solids.
If you have questions regarding this report please contact me at 919-571-4700 ext.247.
Sincerely,
361
Bob Mangum
Raleigh Regional Office
cc: Ray Boling, DWQ Lab Certification
Chatham Co. Health Dept.

F I LF., No . 218 02/ 16 ' 01 16 : 25 I D JOWN OF SILER CITY
FAX:[phone]
PAGE 1/ 10
CHARLES L. TURNER
MAYOR
HELEN M. BUCKNER
PROrEM
JOEL J. BROWER
TOWN MANAGER COMMISSIONERS SAM ADAMS
WILLIAM C. MOAGAN, JR. WIU-IAM F. COLLINS
TOWN ATTORNEY ALEXANDER GRAVES, JR,
JOHN GRIMES
ROBERT SILER
DATE: -al lite, n ` GUY D- SMITH
pLFASIE DE111W TM FOLLOWING MATERIAL AS SOON As Pmsmu
TO:
Trrfun jaf Siler (191.-tvt
POST OFFICE BOX 769
311 NORTH SECOND AVENUE
SUER CITY, NORTH CAROLINA 27344-0769
PHONE: [phone]
FAX: [phone]
i
FROM:
TOTAL NUMBER OF PAGES: a (INCLUDYNG COVER PAGE)
OUR FAX N JMBER: (9I9) 663-3874
MESSAGE:
THANK YOU,
TOWN OF SILER CITY

FILE , No . 218 02/ 16 101 16 :25 I D JOWN OF S I LER CITY FAX : [phone] PAGE 2i 10
1996 MONTHLY A1/ERAGES+JAN.,FEB.,MARCH OF 1997-
EFFLUENT
1996 1996 1997
1997
Jan.
Feb.
IMar
Apr
May
jJun
Jul
Aug
Sep
jOct
Nov
Dec
IJan
Feb
Mar
Flow*
2.548
2.389
2.567
2.519
2.200
1.952
2.143
2.453
3.211
2.695
2.218
2.555
2.680
2.848
2.826
DOD
3.9
6.01
6.3
3.7
5.5
2.7
2.0
1.8
4.01
3.4
2.5
2.4
2.9
3.0
2.1
TSS
0.8
1.5
2.9
2.0
1.01
0.3
0.25
0.14
3.1
1.0
0.58
0.69
2.21
2.52
2.4
NH3N
6.46
5.53
1.33
0.61
1.85
0.01
0.31
0.09
1.77
0.81
0.54
0.54
0.86
0.45
0.50
TOT NIT
13.2
17.3
8.8
20.1
20.7
39.5
28.5
25.7
17.4
10.2
22.5
13.4
12.8
13.2
17.4
PHOS.
0.13
0.32
0.13
0.1
0.16
0.33
0.14
0.09
0.21
0.18
0.18
0.11
0.111
0.06
0.08
COND.
a
987
891
709
718
850
649
651
8531
650
O&G
4.7
01
1.4
0
2.9
0
5.2
0
01
0
3.5
1.2
0.95
2.63
2.8
MBAS
0.04
0.03
0.13
0.17
0.16
0.12
0.19
0.19
0.2
0.15
0.12
0.11
0.16
0.11
0.18
CRC*
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
HG*ww
0
0
0
0
0
0
0
01
0
0
0
0
0
0
0
CU
0.012
0.013
0.011
0.013
0.010
0.016
0.025
0.021
0.017
0.015
0.015
0.015
0.01.5
0.012
0.010
ZN
0.078
0.06
0.035
0.037
0.051
0.043
0.33
0.052
0.036
0.046
0.042
0.086
0.133
0.038
0.032
Flow Values are the influent Flows for the WWTP, since we report those on the DMR reports.
"The value for Chromium is zero. All averages were <0.005
w-The value for Mercury is zero. All averages were <0.0002
INFLUENT BOA & TSS 1996-Mar97
Jan.
IFeb.
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
BOC)
221
248
243
230
323
333
318
365
241
240
324
237
241
225
200
TSS
182
1621
1861
174
302
349
409
311
202
326
205
1941
189
176
BOD % Eff.r- 98.67
TSS % Eff.= 99.41
Page 1

FILE No . 218 02/ 16 ' 01 16 :26 I D JOWN OF S I LER CITY
FAX:[phone] PAGE 3/ 10
AVERAGE
1996 MONTHLY AVERAGES+JAN.,FEB.,MARCH OF 1997-
EFFLUENT
2.520 F10W These averages are based on data reported on the DMR Report
3.540 BOD Forms for the entire year of 1996 plus Jan.. Feb., and March of 1997
1.426 TSS
1.444 NH3N
18.713 TO•T.NIT
0.155 PROS.
751 COND.
1.685 O&G
0.137 MBAS
0.000 C.R**
0.000 HG""
0.015 CU
0.073 ZN
#DIV/0f
#HIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
AVERAGE
265.9
240.5
Page 2

-11
Sample Location*.
E10uem 1999
Sam Se Data
i
Mlsntbl Av .1-1999
sw..d.hee:
Inalrvetiols;
1y oes.
w6mil.nly in
Nuvy Bordered
nlla. Ross at
...ksM.tis
p.oteeted,
pa.snord is
TI F., beta.
a asetion det.,
enUr G to
mlumn.
`red ants.
deuoli.n bvel
in Intloe..r
Ehtluem mey.
dolumna.
apieedaheet
will ato.
metinbs•
"""I"`
e"erega end
e.m.val nU.
ur091f2vi1"
enre.ed.
R2113
oalilyav .2-1999
03101/199
Mlmtbl'av 4-99
Monllil'ev 5-99
2 .9231
D610271999
sees
2.507
07120/1999
ses 2a1
081041199 9
2-72
3.405
09101/1999
1010511999'G•
3,20
11/09/1999
12107119
2.729
01/12120DO
OUVID612AD0
3.025
3.7
03/15/20DD
3.06
D4111120DD
3.261
05/01/2000
3.039
06n312oo0
2.994
Column Averages =>
2.94406
genetic.daU.summelyEFFluen17989.20DD
data summary
Page 1 of 7 pages
D7,742DDD, 1:56 PM
Revision: August 1899
generic. data, summaryEFFluent 9 999-2000
BOD
W
®
k�CVa&w��F�
■
�
■
�
=
seil
IIIIII
lip
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--rev
AI19flflONl4
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u
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■
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wm '.�'
■©MWMW�
■
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�son=,M�H
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■�®
■I
i
I
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t)
m

-n
generic. data.sum maryEFFluent 9 999-2000
Sam 1e Location:
Ie
Effluent 1999
m IL
5 le Date
40Dth1 av .1-1999
spreedaheet
hzir rations:
1) Dote
emared only in
Heavy Bwdarod
joellt. pleat of
prois
protlecterlonted,
pesvword is
.2.'
21 Fo? below
detecticrf date,
enter •c' in
, <' column,
ant safer
detOCi197f level
in Intluant or
Elitism mg11
oolumns.
Spreadsheet
Will auto-
n+atialll
oalaulale
evaagec end
rates
112 valve
enured.
2.641
ontw av 2-1999
2.69
03101/1
M02tb1 av 4-99
2.68fi
2.815
Mon tiil W, 5-99
2.823
O6/Q2(1
1 07
071'.A119
2.719
08104/1999
177
09/01/1999
3.405
10/05/1999
3.20�
11 /09/1999
2.75
12/07/1999
2.729
01112(20D0
3.025
02108(?A00
3.72
031151
3.
04111/20DOlfemovbl
3.261
05/Dj/240DOju&mq
3.038
O6113!200
2.994
COIUM Oerages = >
2.94405
generic.data.sumrnaryEFFluen11999.2DOD
dale summary
?ago 2 of 7 pages
OW24-r2ons, I -spar
Revtsim August IND
t7
—I
0
z
0
M
Cn
r
PO
C-)
7DC
co
N
(D
rn
rn
w
w
00
j
v
D
a)
m
Cn
O

generic.daia.summaryEFFIuentl 999-2000
Sample L.o; ation.
Bfl UM 1999
m /L
Sample Date
hionthl rav A-
sp eodstmVI
Inttruetians:
ontored onit in
Heavy Bordered
oelle. Rest et
worksheat a
protected,
p.e«Yerd rs
•?•"
21 Fee below2,7?
datoction dote.
entor • r-• in
'<• COIUMU,
one
dotectiantim i:vel
Influm: a
Efflusul m911
aolumra.
Spreedahaet
will evto-
rnatiaallr
ceiaulate
overages and
tomoval Fetes
using V2 waltn
artered.
2.841
monthl aq.2-1999
2.69
031D1/199
2.6B6
MOnIhl vav
2.815
Monthl rev 5-99
2.823
06/02/1999
2.507
07/20/1999
2.719
Og/0411999
O9/0111999
3.405
101o$n999
3 �0
11 t0911 9991
2-�S
12J07/lqMin
2.729
01132J200
02r081200
3.025
3.72
03115/2000
3.066
04/11/2000
3.261
0310i/2000
3.038
9611 UMI
2.99
Column Averages = >
2.94406
genetic.daha.summai yEFFlveni1999.2DDD
data summary
Page 3 of 7 pagas
OM/200a, 1:58 PM
Revision: August 1999
M
O
m

Sam Se Loontioa:
•
EY1loent 1999
rg
Sam a Dace
omhl av .1-1999
apreetsbel
hbilV:IIOM:
II Data
eette,ad only in
Heavy 9ardaud
oath. Herz pl
eva,kabat
gloteeted,
yue.vaed it
21 Set beo..
deteetlandata.
ante, "<, art
'<' ealwnn,
end sore,
tleleoton level
in iedlaent e.
Effluen, mga
WIM,a.
apteadrheat
wa. Lute
rnnieelly
oeI.Awe
evereget ant
Iemrvelratae
uelnq Ile value
w:emtl_
2.841
ontlil av .2-1999
2.69
03/Ol/1999
2.68
2.815
bn011 av 499
A4ontN ev 5 99
2.623
06/D2119
2.507
07/20/19
2.719
08/04/1999
ate 2.72
09/Ol/1999
3.405
10/05/L999
3.202
11/09/1999
2.75
2.7
12/0711999
0111212DO
3.025
02108120DD
3.72
03/15/20DD
3 D66
04/11/20oD
3.261
OSlOItM
3.036
D6!13/2000
2.9
Column Averages = >
2.94406
generic.daia.summaryEFFtjen11999-200D
deft summary
Page 4 o1 7 pages
DM4.2000, 156 PIS
ReVISIGn: August 1999
generic.data. summaryEFFIuent1999-2000
■
I 111
MERCURY
Jt L .
1'i 133yyM
a �'--SyO11
1111
N. {E.1M I II
a � YSI.p' 1 11
F�wjg ant 1 11 1'
3' i }Yf 11
1 111
o
1111
III
in 1 11
1 111
-, F�IFb,w
1 11 1
is
SEEM
it
O
I III
a
0
1111
1 III
1fMe t� 111 I
WE `t 1_ 1 11
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'■
—tiX3i�
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111 1 1 11
MOLYBDENUM
F
_
t E F��
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■
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1 1 ,
11
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.,. "�.
it��'T,
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�-
a-
Is
®
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1
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Q
1 1
1
1 1
1
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uis .. f '%iceis
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VM,,fflR, ng
MM', 1 1
�ll
NMI— Fro-
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a1
•
is
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MmmmlimIo
is
mmm
1 1
11
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1 11 1
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SaMk Location:
Effluent 1999
Sam le Date
Monlbl 4m .1-1999
aaaaaaaaa1aM"
ontbl n, .2-99
Spreedeheet
tnata
a
emned.*a
Hee"axd.red
,ells. R..t.I
wprbheet is
protede..
pa.....da,D7/20/1999 2%08/0411999 2) Fpr belowdetceen do,10/05/199 ' <' p.A meend enter
detach" evei
2941
03101/1
268
2-815
MDnbav 4.99
Imthl ae 5-99
D6/D2/1999
M2.507
11109(1999
12/07/1999
I. Intl... or
EftWnu ma4
celpmns.
Spra.d.hset
wa ...
msn-.hs•
ce1cplga.
ever.... end
mmpeelw.,
e1'ne 1121el..
entered.
2.7291
011,12/200D
02,0912000
3.025
3.72
03/15120D
3.066
04111n.ADD
3.261
05101120D0
3.038
06/13/20DD
2.994
Column Averages = >
2.94406
genaric.data.summaryEFFIt antlBW2003
data summery
Page of 7pages
07.242D]D, 1:55PI.S
Rovisicn: August 1999
generic. data. sum maryEFFluent 1999-2000
SELENIUM
'fi+Jiw�f: 1 I'
1 1
illillililiLl "M'..
MEN=itdz�d
MMMMMMMMM
1
UMMMOMMMOMM
MMOMMMMOMM
-
M
-
e e...xrw
1 1 l e I -
SILVER
--
•mow
-.��.�
-
■-1�`stdu
Calculated
s -'
<
m
Ibc/day
0.038
0.9DD4
0.392:
0.036
8.7944
0.8064
' -. 6.3153
0.26
0.034
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Revision Augusl 1999
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Ovum of I$Pi1Pr Titl, J
SILER CITY, NORTH CAROLINA 27344
P. O. BOX 769
311 N. SECOND AVE.
May 3, 2001
Ms. Valery Stephens
NCDENR
Water Quality Point Source Branch
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
PHONE [phone]
FAX [phone]
p EC"IE dWE
MAY _ g 2001 D
L
DENR-WATER QUALITY
POINT SOURCE BRANCH
Dear Ms. Stephens:
The Town of Siler City is requesting a renewal of their NPDES Permit #NC00264*1 for the
Wastewater Treatment Plant. The Siler City Wastewater Treatment facility has not made any
changes pertaining to the plant since the last permit was issued. Enclosed is a copy of the
application form for your review. Should you have any questions or concerns please give me a
call at 919-742-4732.
Sincerely,
TOWN OF SILER CITY
AZ-0-"
Terry Green
Director of Public Works & Utilities
TG:ka
Enclosures
Cc: Files

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A•' = '
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section Ill for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 25,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Mastercraf t Fabrics, LLC
Street address 1311 East Eleventh Street
City Siler City County Chatham
State North Carolina Zip Code 27344
Telephone Number ( 919) 742a2361
Fax Number ( 919) 663-0614
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
Woven Upholstery Fabric
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge -is intermittent or continuous
.048 MGD
n Intermittent Q Continuous
4of4

` NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows >1 MGD or with pretreatment programs
SECTION 11. BASIC DISCHARGE DESCRIPTION
Complete this section for each present (or proposed) discharge indicated In Section I.
All values for an existing discharge should be representative of the twelve previous months of operation.
(if this is a proposed discharge, values should reflect best engineering estimates.)
1. Facility Discharges, Number and Discharge Volume
Specify the number of discharges described in this application and the volume of water discharged or lost to each of the categories below.
Estimate average volume per day in MGD. Do not include intermittent discharges, overflows, bypasses or seasonal discharges from lagoons, etc.
Discharge To: - Number of Discharge Points Total Volume Discharged(MGD)
Surface Water
Other (describe below)
TOTAL
If 'other is specified, describe:
2. Outfall Number:
Assign a three -digit number beginning with 001 for the point of discharge covered by the first description. Discharge serial numbers should be
consecutive for each additional discharge described; hence, the second serial number should be 002, the third 003, etc.
3. Discharge to End Date
If the discharge is scheduled to cease within the next 5 years, give the date (within best estimate) the discharge will end:
Give the reason(s) for discontinuing this discharge in your cover letter.
4. Receiving Stream Name
Give the name of the waterway (at the point of discharge) by which it is usually designated on published maps of the area. If the discharge is to an
unnamed tributary, so state and give the name of the first body of water fed by that tributary which is named on the map, e.g., UT to McIntire Creek,
where McIntire Creek is the first water way that is named on the map and is reached by the discharge.
5. Outfall Structure
Describe the outfall structure and any significant changes since the last permit was issued (repairs, shoreline maintenance, etc.).
3of4

14C DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows >1 MGD or with pretreatment programs
SECTION.111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section Ill for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 25,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Gold Kist, Inc.
Street address 702 South Chatham Avenue
City Siler City County,
State North Carolina
Telephone Number
Fax Number
e-mail address
Chatham
Zip Code 27344
( 919 ) 742-4102
( 919 ) 749-9790
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product Raw Material Quantity Units
Poultry
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge -is intermittent or continuous
.650 MGD Intermittent ® Continuous
4of4

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows >1 MGD or with pretreatment programs
SECTION.111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section Ill for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 25,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Townsends, Inc.
Street address 1100 East Third Street
City Siler City County. Chatham
State North Carolina Zip Code 27344
Telephone Number ( 919 ) 663-4108
Fax Number ( 919 ) 663-41 R2
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product Raw Material Quantity Units
Poultry
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge -is intermittent or continuous
.625 MGD Intermittent ® Continuous
4of4

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows >1 MGD or with pretreatment programs
SECTION.111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 11l for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 25,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Glendale Group, LTD
Street address 1200 East Third Street
City Siler City County. Chatham
State North Carolina Zip Code 27344
Telephone Number ( 919 ) 663-2900
Fax Number ( 919 ) 663-2649
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
Women's. Sheer Hosiery,
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge -is intermittent or continuous
.090 MGD F1 Intermittent 0 Continuous
4of4

ITC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal FaciLties with permitted flows >1 MGD or with pretreatment programs
SECTION. III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section III for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 25,ODO gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Brookwood Farms, Inc.
Street address 1015 Alston Bridge Road
City Siler City County Chatham
State North Carolina Zip Code 27344
Telephone Number ( 919 }_ 663-3612
Fax Number ( 919 } 663-2396
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantily
Units
Country Hams
Pork & Beef Barbecue
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge -is intermittent or continuous
.018 MGD
n Intermittent © Continuous
4of4

REMOVAL OF SLUDGE AT
THE TOWN OF SILER CITY WASTEWATER TREATMENT FACILITY
The Town of Siler City contracts with Synagro Southeast, Inc. of Clemmons, NC for the
removal and land application of the sludge generated through the Wastewater
Treatment facility. The Permit number for this process is WQ0003226. The Wastewater
Treatment Plant Superintendent and the weather dictate when and how often the
sludge is removed. Should you have questions or need further information, please give
me a call at 919-742-4732.

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