NC0020567_Permit (Issuance)_20040106

NPDES DOCUMENT SCANNIN`i COVER SHEET
NPDES Permit:
NC0020567
Elkin / YVSA WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
January 6, 2004
Whim document is printed cots ranee paper - ignore an9
content on the reverse side

©A
NCDENR
Mr. Robert Fuller
Town of Elkin
P.O. 857
Elkin, North Carolina 28621
Dear Mr. Fuller:
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
January 6, 2004
Subject: Issuance of NPDES Permit NC0020567
Elkin WWTP
Surry County
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North
Carolina and the U.S. Environmental Protection Agency dated May 9, 1994 (or as subsequently amended).
This final permit includes no major changes from the draft permit sent to you on. November 5, 2003.
If any parts, measurement frequencies or sampling. requirements contained in this permit are unacceptable to
you, yonhavei the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of '
this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina
General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North
Carolina 27699-6714). Unless such demand is' made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain
other permits which may be required by the Division of Water Quality or permits required by the Division of Land
Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may be
required. If you have any questions concerning this permit, please contact Dawn Jeffries at telephone number (919)
733-5083, extension 595.
cc: Central Files
Winston-Salem Regional Office/Water Quality Section
NPDES Unit
Aquatic Toxicology Unit
Madolyn Dominy / EPA
N. C. Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
Internet: h2o.enr.state.nc.us
Sincerely,
ORIGINAL SIGNED BY
Mark McIntire
Alan W. Klimek, P.E.
Phone: [phone]
fax: [phone]
DENR Customer Service Center: 1 800 623-7748

Permit NC0020567
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended, the
Town of Elkin
is hereby authorized to discharge wastewater from a facility located at the
Elkin WWTP
211 Marion Road
Elkin
Surry County
to receiving waters designated as the Yadkin River in the Yadkin -Pee Dee 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 February 1, 2004.
This permit and authorization to discharge shall expire at midnight on January 31, 2009.
Signed this day January 6, 2004.
ORIGINAL SIGNED BY
Mark McIntire
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0020567 '
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of
this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the
exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements,
terms, and provisions included herein.
The Town of Elkin is hereby authorized to:
1. Continue to operate a 1.8 MGD wastewater treatment facility that includes
the following components:
> Mechanical bar screen
> Grit chamber
> Influent flume
➢ Continuous recording flow measurement
> Primary clarifiers
➢ Trickling filter
> Aeration basin
> Dual secondary clarifiers
> Chlorine contact chamber
➢ Dechlorination
> Automatic sampler
> Aerobic digester
> Sludge holding tanks
> Sludge drying beds
This facility is located at the Elkin WWTP off Marion Road near Elkin in Surry
County.
2. Discharge from said treatment works at the location specified on the attached
map into the Yadkin River, classified C waters in the Yadkin -Pee Dee River
Basin.
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NC0020567-001
RECEIVING STREAM: Yadkin River
Stream Classification: C
USGS Quad. No. : C15NE
USGS Quad. Name: ELKIN SOUTH
County: Surry
90.3_
coN
• • _sr
Laiitude: 36'14' 5r
Longitude: 8Cf 49' 55"
Quad # C 15NE
Receiving Stream: Yadkin River
Stream Class: C
Subbasin: 30702
NC0020567
Elkin WWTP
Facility
Location
North
SCALE 1:24000

Permit NC0020567 '
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration. the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT .
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
. Daily
M.ax(Mujn
Measurement
• Frequency
Sample
Type :. _
Sample.Location
Flow
1.8 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day (20°C)'
30.0 mg/L
45.0 mg/L
3/Week
Composite
Effluent, Influent
Total Suspended Solids'
30.0 mg/L
45.0 mg/L
3/Week
Composite
Effluent, Influent
NH3 as N
Weekly
Composite
Effluent
Fecal Coliform
(geometric mean)
200 / 100 ml
400 / 100 ml
3/Week
Grab
Effluent
pH
Between 6.0 and 9.0 standard units
3/Week
Grab
Effluent
Total Residual Chlorine
, 28 µg/L
3/Week
Grab
Effluent
Temperature (2C)
3/Week
Grab
Effluent
Total Nitrogen
(NO2 + NO3 + TKN)
Weekly
Composite
Effluent
Total Phosphorus
•
Weekly
Composite
Effluent
Chronic Toxicity2
Quarterly
Composite
Effluent
Notes:
1. The monthly average BOD5 and Total Suspended Solids concentrations shall not exceed 15% of
the respective influent value (85% removal).
2. Chronic Toxicity (Ceriodaphnia) P/F at 0.87%; tests shall be conducted in March, June,
September and December. See Part A.(2.) for further details.
There shall be no discharge of floating solids or visible foam in other than trace
amounts.

Permit NC0020567
A. (2) CHRONIC TOXICITY PERMIT LIMIT (Quarterly)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or
significant mortality to Ceriodaphnia dubia at an effluent concentration of 0.87%.
The permit holder shall perform at a minimum, ,quarterlq monitoring using test procedures
outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February
1998, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test
Procedure" (Revised -February 1998) or subsequent versions. The tests will be performed during
the months of March, June, September and December. Effluent sampling for this testing shall be
performed at the NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or
ChV below the permit limit, then multiple -concentration testing shall be performed at a minimum, in
each of the two following months. as described in "North Carolina Phase II Chronic Whole Effluent
Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric
mean of the highest concentration having no detectable impairment of reproduction or survival and
the lowest concentration that does have a detectable impairment of reproduction or survival. The
definition of "detectable impairment," collection methods, exposure regimes, and further statistical
methods are specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the
Effluent Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the
parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWQ
Form AT-3 (original) is to be sent to the following address:
Attention: NC DENR / DWQ / Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no
later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical
measurements and all concentration/response data, and be certified by laboratory supervisor and
ORC or approved designate signature. Total residual chlorine of the effluent toxicity sample must be
measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity
monitoring is required, the permittee will complete the information located at the top of the aquatic
toxicity (AT) test form indicating the facility name, permit number, pipe number, county, and the
month/year of the report with the notation of "No Flow" in the comment area of the form. The report
shall be submitted to the Environmental Sciences Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required,
monitoring will be required during the following month.
Should any test data from this monitoring requirement or tests performed by the North
Carolina Division of Water Quality indicate potential impacts to the receiving stream, this permit may
be re -opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival, minimum control organism reproduction, and appropriate environmental
controls, shall constitute an invalid test and will require immediate follow-up testing to be completed
no later than the last day of the month following the month of the initial monitoring.

Permit NC0020567
A. (3.) EFFLUENT POLLUTANT SCAN
The Permittee shall perform an annual Effluent Pollutant Scan for all parameters listed in the attached table.
The analytical methods shall be. in accordance with 40 CFR Part 136 and shall be sufficiently
sensitive to determine whether parameters are present in concentrations greater than applicable
standards and criteria. Samples shall represent seasonal variations. Unless otherwise indicated,
metals shall be analyzed as "total recoverable."
Ammonia (as N) Trans-1,2-dichloroethylene Bis (2-chtoroethyl) ether
Chlorine (total residual, TRC) 1,1-dichtoroethylene Bis (2-chtoroisopropyl) ether
Dissolved oxygen 1,2-dichloropropane Bis (2-ethylhexyl) phthalate
Nitrate/Nitrite 1,3-dichloropropytene 4-bromophenyl phenyl ether
Kjeldahl nitrogen Ethylbenzene Butyl benzyl phthalate
Oil and grease Methyl bromide 2-chloronaphthatene
Phosphorus • Methyl chloride 4-chlorophenyl phenyl ether
Total dissolved solids Methylene chloride Chrysene
Hardness 1,1,2,2-tetrachloroethane Di-n-butyl phthalate
Antimony Tetrachloroethylene Di-n-octyl phthalate
Arsenic Toluene Dbenzo(a,h)anthracene
Beryllium 1,1,1-trichloroethane 1,2-dichlorobenzene
Cadmium 1,1,2-trichloroethane 1,3-dichlorobenzene
Chromium Trtchtoroethytene 1,4-dichlorobenzene
Copper Vinyl chloride 3,3-dichtorobenzidine
Lead Acid -extractable compounds: Diethyl phthalate
Mercury P-chloro-m-creso . Dimethyl phthalate
Nickel 2-chlorophenol 2,4-dinitrotoluene
Selenium 2,4-dichiorophenol 2,6-dinitrotoluene
Silver 2,4-dimethytphenol 1,2-diphenythydrazine
Thallium 4,6-diniitro-o-cresol Fluoranthene
Zinc 2,4-dinitrophenol Fluorene
Cyanide 2-nitrophenol Hexachlorobenzene
Total phenolic compounds 4-nitrophenol Hexachlorobutadiene
Volatile oceanic compounds: Pentachlorophenol Hexachlorocydo-pentadiene
Acrolein Phenol Hexachloroethane
Ac rytonitrile 2,4,6-trichtorophenol lndeno(1,2,3-cd)pyrene
Benzene Base -neutral compounds: Isophorone
Bromoform Acenaphthene Naphthalene
Carbon tetrachloride Acenaphthylene Nitrobenzene
Chbrobenzene Anthracene N-nitrosodi-n-propylamine
Chlorodibromomethane Benzidine N-nitrosodimethylamine
Chloroethane Benzo(a)anthracene N-nitrosodiphenylamine
2-chloroethylvinyl ether Benzo(a)pyrene Phenanthrene
Chloroform 3,4 benzofluoranthene Pyrene
Dichtorobromomethane Benzo(ghi)perylene 1,2,4-trichtorobenzene
1,1-dichloroethane Benzo(k)fluoranthene
1,2-dichloroethane Bis (2-chloroethoxy) methane
Test results shall be reported to the Division in DWQ Form- A MR-PPA1 or in a form approved by the
Director within 90 days of sampling. The report shall be submitted to the following address:
NC DENR / DWQ / Central Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617.

Re: NC0020567
Subject: Re: NC0O2O567
Date: Thu, 18 Dec 2003 09:04:45 -0500
From: John Giorgino <[e-mail]>
To: Dawn Jeffries <[e-mail]>
HI Dawn,
I have been out of the office since Tue afternoon. Sorry It has taken
me this long to get back to you. I have no comments concerning the tox
sections of the Draft Permit.
Best Regards,
John
Dawn Jeffries wrote:
>Hi John,
>Oops, Sorry about that! Thanks for your quick response! I'll attach an
>e-copy of the draft . Will that suffice, or shall I send a hard copy too?
>Dawn
>John Giorgino wrote:
»Hi Dawn, I looked through my -pile, and I have not received Elkin WWTP.
»Sorry.
» -John
»Dawn Jeffries wrote:
»John,
»>
»>I'm about to finalize the draft for permit NC0020567, Elkin WWTP. Do
»'you have any comments on it?
»>
»Thanks,
»'Dawn Jeffries
»>
»>
»>
»>
»>
»--
»John Giorgino
»Environmental Biologist
»North Carolina Division of Water Quality
»Aquatic Toxicology Unit
»Office: 919 733-2136
»Fax: [phone]
»Mailing Address:
»1621 MSC
»Raleigh, NC 27699-1621
1 of 2 12/18/2003 10:39 AM

socceo sril6's
z� A ;� UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
s Illre W REGION 4
ATLANTA FEDERAL CENTER
Z''4,`�< Paasti°A\o2 61 FORSYTH STREET
ATLANTA, GEORGIA 30303-8960
DEC 0 12003
Mr. Charles Weaver
North Carolina Department of Environment and
Natural Resources
Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
SUBJ: Town of Tryon WWTP - Permit No. NC0021601
Town of Elkin WWTP - Permit No. NC0020567
Dear Mr. Weaver:
In accordance with the EPA/NCDENR MOA, we have completed review of the draft permits
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(s) prior to issuance, or if significant
comments objecting to the draft permit(s) are received. Otherwise, please send us one copy of each
final permit when issued.
If you have any questions, please call me at [phone].
Sincerely,
Marshall Hyatt, Environmental Scientist
Permits, Grants, and Technical Assistance Branch
Water Management Division
Internet Address (URL) • http://www.epa.gov
Recycled/Recyclable . Printed with Vegetable Oil Based Inks on Recycled Paper (Minimum 30% Postconsumer)

NORTH CAROLINA
SURRY COUNTY
AFFIDAVIT OF PUBLICATION
Before the undersigned, a Notary Public of said County and State, duly
commissioned, qualified and authorized by law to administer oaths,
personally appeared Ferris W. Simpson who being first duly
sworn, deposes and says: that he (she) is Business Manager
(Publisher or other officer or employee authorized to make affidavit) of
MOUNT AIRY NEWSPAPERS, INC., engaged in the publication of a
newspaper known as MOUNT AIRY NEWS, published, issued, and
entered as periodicals class mail in the city of Mount Airy in said County
and State; that he (she) is authorized to make this affidavit and sworn
statement; that the notice or other legal advertisement, a true copy of
which is attached hereto, was published in MOUNT AIRY NEWS on the
following dates:
1 "1 I 1,003
and that the said newspaper in which such notice, paper, document or
legal advertisement was published was, at the time of each and every
such publication, a newspaper meeting all of the requirements and
qualifications of Section 1-597 of the General Statutes of North Carolina
and was a qualified newspaper within the meaning of Section 1-597 of
the General Statutes of North Carolina.
This 1 day of , 2003
Signature of person making affidavit
Sworn to ands bscribed before me, this
1.1
4 0,„Lc,„,, (..)--/..
Notary Public
My Commission expires: August 17, 2004
, 2003
day of
CLIPPING OF
LEGAL
ADVERTISEMENT
LEGALS LEGALS
PUBLIC NOTICE
STATE OF NORTH
CAROLINA
ENVIRONMENTAL
MANAGEMENT COM-
MISSION/ NPDES
UNIT
1617 MAIL SERVICE
CENTER
RALEIGH, NC 27699-
1617
NOTIFICATION OF IN-
TENT TO ISSUE A
NPDES WASTE WA-
TER PERMIT
On the basis of thor-
ough staff review and ,
application of NC Gen-
eral Statute 143.21
Public law 92-500 and ,
other lawful standards
and regulations, the
North Carolina Envi-
ronmental Manage-
ment Commission pro-
poses to issue a Na-
tional Pollutant Dis-
charge Elimination
System (NPDES)
wastewater discharge
permit to the person(s)
listed below effective
45 days from the pub-
lish date of this notice.
Written comments re-
garding the proposed
permit will be accepted
until 30 days after the
publish date of this no-
tice. All comments re-
ceived prior to that
date are considered in -
the final determinations
regarding the proposed
permit. The Director of
the NC Division of Wa-
ter Quality may decide
to hold a public meet-
ing for the proposed
permit should the Divi-
sion receive a signifi-
NOV 1 0
L
cant degree of public
interest.
Copies of the draft per-
mit and other support-
ing information on file
used to determine con-
ditions present in the
draft permit are availa-
ble upon request and
payment of the costs of
reproduction. Mail
comments and/or re-
quests for information
to the NC Division of
Water Quality at the
above address or call
Ms. Valery Stephens at
[phone], exten-
sion 520. Please in-
clude the NPDES per-
mit number (attached)
in any communication.
Interested persons
may also visit the Divi-
sion of Water Quality at
512 N. Salisbury
Street, Raleigh, NC
27604-1148 between
the hours of 8:00 a.m.
and 5:00 p.m. to review
information on file.
The Town of Elkin
(P.O. Box 857, Elkin,
NC 28621) has applied
for renewal of NPDES
permit NC0020567 for
its WWTP in Surry
County. This permitted
facility discharges
treated domestic
wastewater to the Yad-
kin River in the Yadkin -
Pee Dee River Basin.
Currently fecal coliform
and total residual chlor-
ine are water quality
limited. This discharge
may affect future allo-
cations in this portion
of the Yadkin River.
November 7, 2003
DENA-WATER OUALI-I-r
POINT SOURCE BRAN(.'

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES Permit NC0020567
Facility Information
Applicant/Facility Name:
Town of Elkin/ Elkin WWTP
Applicant Address:
P.O. Box 857; Elkin, North Carolina 28621
Facility Address:
211 Marion Road; Elkin, North Carolina 28621
Permitted Flow
1.8 MGD
Type of Waste:
Domestic (100%)
Facility/Permit Status:
Class IV /Active; Renewal
County:
Surry County
Miscellaneous
Receiving Stream:
Yadkin River
Regional Office:
Winston-Salem
(WSRO)
Stream Classification:
State Grid / USGS Quad:
C15NE
303(d) Listed?
No
Permit Writer:
Natalie V. Sierra
Subbasin:
03-07-02
Date:
October 21,2003
Drainage Area (mi2):
878
Summer 7Q10 (cfs)
317
Winter 7Q10 (cfs)
454
30Q2 (cfs)
Average Flow (cfs):
IWC (%):
1400
0.87%
Lat. 36° 14' 51" N Long. 80° 49' 5" W
BACKGROUND
The Town of Elkin WWTP is a Class IV facility with a permitted flow of 1.8 MGD. The facility
is 100% domestic and serves customers in Elkin. The permit was originally issued on May 24,
1999 and expires on January 31, 2004. The Permittee submitted EPA Form 2A on September 2,
2003 in order to request renewal of the permit. In addition to NPDES Permit NC0020567, the
Permittee also holds the non -discharge permit WQ0007349 for land application of sludge.
The facility has not requested any changes to the current NPDES permit.
Instream Monitoring, Verification of Existing Conditions and DMR Data Review
This facility discharges to the Yadkin River in subbasin 03-07-02 of the Yadkin -Pee Dee River
Basin. The Valley River is classified C waters at this point and is not on the 2002-303(d) list.
Elkin is not required to monitor any instream parameters, so no instream data were available for
analysis. Effluent Discharge Monitoring Report (DMR) data from January 2001 through August
2003 were reviewed. Data for conventional parameters are summarized in Table 1. Based on
these data, the Permittee maintained compliance with the monthly average permit limits for those
• arameters.
Avera e
Maximum
Minimum
Flow Temperature
(MGD) (°C)
0.7536
0.9242
0.5950
16.11
23.70
1.4
SOD
(mgfL)
5.67
10.80
1.8
TSS (mg/L) Fecal
(#/100 mL)
6.07
12.20
2.3
3.52
14.20
1.1
Table 1. NC0020567 Conventional Data (January 2001-July 2003)
This facility also collects data for total nitrogen, total phosphorus, ammonia nitrogen (NH3-N),
and total residual chlorine. These are summarized in Table 2. Total residual chlorine is below

the limit of 28 Ltg/L and the plant appears to be nitrifying well (based on the ammonia nitrogen
data).
Avera ' e
Maximum
Minimum
NH3-N Total Nitrogen Total Total Residual
(mgfL) (mg/L) Phosphorus Chlorine (ug/L)
(mom)
0.44
1.63
0.01
4.53
8.18
2.05
1.13
2.24
0.495
5.93
Table 2. NC0020567 Nutrient and Toxicant Data (January 2001 — August 2003)
The only metals data collected were those in done in conjunction with the permit renewal. These
are discussed in the Priority Pollutant Analysis section.
Correspondence
The Winston-Salem Regional Office (WSRO) conducted several site visits during this permit
term to evaluate compliance. These did not indicate any recurring problems or concerns and the
facility was deemed to be in compliance. There were no permit violations during the 2001-2003
period and the Permittee has passed all whole effluent toxicity tests in the last five years.
PERMITTING STRATEGY
Waste Load Allocation (WLA)
The Division prepared the last WLA for the previous permit renewal. The previous and current
effluent limits were based on guidelines and water quality standards. The Division has judged
previous parameters and limits to be appropriate for renewal with some exceptions. Changes to
toxicant monitoring are discussed in the Priority Pollutant Analysis section. In addition, an
annual pollutant scan will be added such that the Permittee can collect the necessary data
required by EPA Form 2A throughout the permit term. This condition is now standard on all
major municipal permits in North Carolina.
Priority Pollutant Analysis (PPA)
The Permittee submitted the required PPA with the renewal application. Antimony, copper, zinc,
chloroform, and methylene chloride were detected in the analyses. These were run through a
reasonable potential analysis, the results of which indicated maximum predicted concentrations
below instream allowable concentrations for all of the detected parameters. No additional
monitoring will therefore be necessary.
SUMMARY OF PROPOSED CHANGES
In keeping with Division policies, the following will be incorporated into the permit:
• Annual pollutant scan
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
November 5, 2003
December 26, 2003
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please contact
Dawn Jeffries at [phone] ext. 595.
NAME: DATE:

Elkin WWTP
NC0020567
Month
Total
Residual Fecal
Flow Temp. Chlorine BOD NH3-N TSS (#/100
(MGD) (deg C) (ug/L) (mg/L) (mg/L) (mg/L) mL) TN TP
Jan-01
Feb-01
Mar-01
Apr-01
May-01
Jun-01
Jul-01
Aug-01
Sep-01
Oct-01
Nov-01
Dec-01
Jan-02
Feb-02
Mar-02
Apr-02
May-02
Jun-02
Jul-02
Aug-02
Sep-02
Oct-02
Nov-02
Dec-02
Jan-03
Feb-03
Mar-03
Apr-03
May-03
Jun-03
Jul-03
Aug-03
0.8458 9.20 <10 10.60 1.10 6.00 2.1 3.6 1.8
0.7813 9.20 <10 4.70 0.23 5.70 4.2 2.4 1.1
0.9242 9.90 <10 6.00 0.33 12.20 4.7 4.0 1.1
0.7860 14.60 <10 4.70 0.12 8.30 2.7 4.1 0.9
0.6640 18.40 <10 5.00 0.06 7.70 2.1 4.3 2.0
0.7510 22.10 <10 10.20 0.22 6.10 6.6 2.2 1.5
0.7490 23.70 <10 3.90 0.19 3.40 14.2 5.3 0.6
0.7620 23.10 <10 9.40 0.39 2.30 11.8 5.3 1.3
0.7910 21.60 <10 2.80 0.01 8.10 7.4 4.8 0.5
0.6760 18.30 <10 2.70 0.19 3.40 2.2 5.2 1.4
0.6200 14.60 <10 8.40 0.07 7.80 3.6 4.8 1.6
0.7260 13.50 <10 4.80 0.14 8.40 1.3 3.4 1.2
0.8040 10.60 <10 7.80 0.63 10.90 1.7 3.8 0.7
0.7160 10.50 <10 4.20 0.34 3.30 2.9 4.6 0.7
0.7670 12.00 <10 4.00 0.53 3.30 4.2 2.3 0.7
0.6910 16.50 <10 6.10 0.82 6.00 1.7 2.1 0.7
0.6600 18.80 <10 5.80 1.15 3.90 2.1 3.1 0.7
0.5950 21.90 <10 7.80 1.63 5.20 2.5 5.4 0.9
0.6420 23.40 <10 2.50 0.08 5.70 2.9 4.4 1.0
0.6530 23.60 8.40 1.80 0.85 3.30 2.5 6.5 1.0
0.6430 22.50 6.50 9.50 0.54 9.10 2.0 6.0 2.2
0.7470 19.80 6.10 5.10 0.50 8.50 1.8 5.4 0.5
0.7530 16.40 5.00 1.80 0.13 3.90 6.3 4.8 1.0
0.8270 11.90 5.70 6.00 1.26 4.10 2.0 3.8 1.0
0.7830 10.20 5.30 8.90 0.38 5.20 1.3 4.1 1.2
0.9100 8.60 4.40 6.90 0.33 9.40 1.1 4.0 1.2
0.9140 1.40 3.60 2.10 0.06 7.80 1.2 4.1 0.8
0.8880 15.20 13.30 5.60 0.08 6.90 1.3 5.6 1.1
0.6910 16.90 4.20 10.80 0.55 4.20 2.1 8.2 2.2
0.8210 19.10 3.50 3.50 0.36 3.30 2.6 6.4 1.8
0.7810 21.90 5.10 2.50 0.23 4.70 3.9 6.8 0.7
0.6560 22.00 7.00 2.10 0.25 3.70 1.9 5.2 1.0
Average
Maximum
Minimum
0.7536 16.11 5.93 5.67 0.44 6.07 3.52 4.53 1.13
0.9242 23.70 13.30 10.80 1.63 12.20 14.20 8.18 2.24
0.5950 1.4 3.5 1.8 0.01 2.3 1.1 2.054 0.495

Facility Name =
Qw,w (MGD) =
WWTP Classification
NPDES # =
Receiving Stream
/W('(%) _
Final Results:
Town of Elkin WWTP
1.8
4
NC0020567
Yadkin River
0.87
Reasonable Potential Summary
Stream Classification
7Q10s (cfs)=
30Q2 (cfs)
Qavg (cfs)
1°
2°
30
4°
C
317
1400
Antimony
Max. Pred Cw 1586.5 µg/1
Allowable Cw 1604.7 µg/1
'Implementation
;Are all reported values less than?
Its the detection limit acceptable?
No
Yes
Limit?
Monitor?
No
No
I
'Monitoring
I Frequency None
Chloroform
!Implementation
I -
Max. Pred Cw 185.10 µg/1
'Are all reported values less than?
No
Limit?
No
' Monitoring
Allowable Cw 653.3 µg/I
'Is the detection limit acceptable?
Yes
Monitor?
No
' Frequency
None
Copper
Max. Pred Cw 36.9 µg/l
,Implementation
IAre all reported values less than?
No
Limit?
No
,
!Monitoring
Allowable Cw 802.3 µg/l
jis the detection limit acceptable?
Yes
Monitor?
No
j Frequency
None
1/2 FAV
7.3
µg/1
s
I
1/2 FAV
5.8
µg/1
!
I
methylene chloride
'Implementation
I
Max. Pred Cw 277.6 µg/I
'Are all reported values less than?
No
Limit?
No
;Monitoring
Allowable Cw 538.7 µg/1
Its the detection limit acceptable?
Yes
Monitor?
No
:Frequency
None
Zinc
(Implementation
!
Max. Prcd Cw 89.2 µg/1
'Are all reported values less than?
No
Limit?
No
'Monitoring
Allowable Cw 5731.0 µg/1
:Is the detection limit acceptable?
Yes
Monitor?
No
Frequency
None
1/2 FAV
67.0_µg/l
µg/1
:
I
i
,
I
1/2 FAV
95.0

AUG
July 31, 2003
Mrs. Valery Stephens
NC DENR/Water Quality/Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Town of Elkin WWTP
NPDES Permit No. NC0020567
Dear Ms. Stephens,
Enclosed for your review is the NPDES Permit renewal package for the Elkin
Wastewater treatment plant. The application does not include the results for the priority
pollutant analysis, as they have not been received. As soon as we receive the results
we will send an amended application. Our existing permit expires on January 31, 2004.
We are requesting the Division to renew our NPDES Permit. There are no changes at
our facility since the issuance of the last permit on July 1, 1999.
If you have any questions concerning the information provided, please feel free to give
me a call.
Sincerely,
Town of Elkin
Robert Fuller
Public Works Director
Cc: Hal Transou
Gary Stainback

Treatment Process
The Town of Elkin owns and operates a 1.8 MGD design capacity facility. The
facility treats a combination of domestic and commercial wastewaters. The
current treatment scheme includes a mechanical bar screen, grit removal
system, primary clarifiers, trickling filter, activated sludge and secondary
clarification. The treated effluent is disinfected by chlorination followed by
dechlorination through the use of Sulfur Dioxide. Sludge stabilization is
accomplished by an anaerobic digester and sludge thickening/holding tank. The
facility has utilized lime to facilitate the stabilization process. Liquid stabilized
sludge may be land applied in liquid from to permitted sites, and/or dewatered on
sand drying beds and land applied.

TOWN OF ELKIN WASTEWATER TREATMENT PLANT
BAR SCREEN
INFLUENT
0
GRIT
CHAMBER
PRIMARY
CLARIFER
(0.0918 MG)
0.
SLUDGE
Co
X
O
X
O
DRYING
Co
O
O
O
CHLORINE
CONTACT

ATTACHMENT III
Toxicity Test Methods Followed
Manual Title: Short Tem Methods for Estimating the Chronic
Toxicity of Effluent and Receiving Water to Freshwater Organism
Edition number and year of publication: Third Edition, EPA 600-4-91-002
July 1994
Page Numbers: 144-195