NC0020567_Permit (Issuance)_20091002

NPDES DOCUMENT !;CANNING COVER SHEET
NPDES Permit:
NC0020567
Elkin / YVSA WWTP
Document Type:
hermit 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:
October 2, 2009
This document is printed on reuse paper - ignore any
content on the reirerse side

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
October 2, 2009
Mr. Robert Fuller, Public Works Director
Town of Elkin
125 Carter Mill Rd.
Elkin, North Carolina 28621
Subject: NPDES Permit Issuance
Permit No. NC0020567
Elkin WWTP
Surry County
Dear Mr. Fuller:
In accordance with the application for discharge permit received, the Division is forwarding
herewith the subject NPDES permit. This permit is issued pursuant to the requirements of North
Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina
and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently
amended) .
The final permit authorizes the Town of Elkin to discharge municipal wastewater from the
Elkin Wastewater Treatment Plant to the Yadkin River, a class C water in the Yadkin/Pee Dee River
Basin. The permit includes discharge limitations/or monitoring for flow, BOD5, ammonia nitrogen,
total suspended solids, dissolved oxygen, total residual chlorine, fecal coliform, copper and zinc.
The following procedure has been implemented by DWQ: Total residual chlorine (TRC)
compliance level changed to 50 ug/l. Effective March 1, 2008, the Division received EPA approval
to allow a 50 ug/1 TRC compliance level. This change is due to analytical difficulties with TRC
measurements. Facilities will still be required to report actual results on their monthly discharge
monitoring report (DMR) submittals, but for compliance purposes, all TRC values below 50 ug/l will
be treated as zero. A footnote regarding this change has been added to the effluent limitations page
in the draft permit.
The following correction has been made to the final permit:
• The expiration date of the permit shall be January 31, 2014. The draft permit had the
incorrect expiration date of January 31, 2013.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
No7thCarolina
Natural!'

•
The following minor modification in the draft permit of August 11, 2009 remains in the final
permit.
• Please review the language in Special Condition A. 2 Chronic Toxicity Permit Limit.
There are some minor additions regarding the DWQ forms to be submitted and
clarification on reporting pollutant data.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within
thirty (30) days following receipt of this letter. This request must be in the form of a written
petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
office of Administrative Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714.
Unless such a demand is made, this permit shall be final and binding.
Please take notice that this permit is not transferable. The Division may require modification
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, Coastal Area Management Act, or any other Federal or Local
governmental permits may be required.
If you have any questions or need additional information, please contact Jacquelyn Nowell at
telephone number [phone].
1-1
Sincerely,
Coleen H. Sullins
Attachments
cc: EPA/Region IV (ecopy))
Winston-Salem Regional Office/Surface Water Protection Section (ecopy)
Aquatic Toxicology Unit (ecopy)
Technical Assistance and Certification Unit (ecopy)
ESS/Carrie Ruhlman (ecopy)
NPDES File
Central Files

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
Surly 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 November 1, 2009.
This permit and authorization to discharge shall expire at midnight on January 31, 2014.
Signed this day October 2, 2009.
o/L
oleen H. Sullins, Director
ivision of Water Quality
By Authority of the Environmental Management Commission

Permit NC0.020567
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, andprovisions 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.

1.1
•
ri
•
osOM
•r:
Sew
svi1le
ELKIN' WWTP
NC0020567-001
RECEIVING STREAM: Yadkin River
Stream Classification:
C
USGS Quad. No.
USGS Quad. Name: ELKIN SOUTH
County: Surry
s.
•
•
/2
/
— .L
Latitude: 36'14' 51"
Longitude: 80°49' 55"
Quad # C15NE
Receiving Strew :Yadkin River
Stream Class: C
Subbasin: 30702
NC0020567
Elkin WWTP
North
SCALE 1 :24000

Permit NC0020567 •
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS -FINAL
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Location
Flow
1.8 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day (202C)'
30.0 mg/L
45.0 mg/L
3/Week
Composite
Effluent, Influent
Total Suspended Salids1
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 Chlorine2
28 µg/L
3/Week
Grab
Effluent
Temperature (9C)
3/Week
Grab
Effluent
Total Nitrogen
(NO2 + NO3 + TKN)
Weekly
Composite
Effluent
Total Phosphorus
Weekly
Composite
Effluent
Chronic Toxicity3
Quarterly
Composite
Effluent
Notes:
1. The monthly average B0D5 and Total Suspended Solids concentrations shall not exceed 15% of
the respective influent value (85% removal).
2. The .Division shall consider all effluent total residual chlorine values reported below 50 µg/1 to be
in compliance with the permit. However, the Permittee shall continue to record and submit all
values reported by a North Carolina certified laboratory (including field certified), even if these
values fall below 50 µg/1.
3. 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) - FINAL
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, auarteriu monitoring using test procedures
outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February
1998, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test
Procedure" (Revised -February 1998) or subsequent versions. The tests will be performed during
the months of March, June, September and December. Effluent sampling for this testing shall be
performed at the NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or
ChV below the permit limit, then multiple -concentration testing shall be performed at a minimum, in
each of the two following months as described in "North Carolina Phase II Chronic Whole Effluent
Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric
mean of the highest concentration having no detectable impairment of reproduction or survival and
the lowest concentration that does have a detectable impairment of reproduction or survival. The
definition of "detectable impairment," collection methods, exposure regimes, and further statistical
methods are specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the
Effluent Discharge Monitoring Form (MR-1) for the months in which tests were performed. If
reporting pass/fail results using the parameter code TGP3B, DWQ Form AT-1 (original) is sent to the
below address. If reporting Chronic Value results using the parameter code THP3B, DWQ Form AT-3
(original) is to be sent to the following address:
Attention: NC DENR / DWQ / Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section 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 Section 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.
If the Permittee monitors any pollutant more frequently then required by this permit, the
results of such monitoring shall be included in the calculation and reporting of the data submitted on
the DMR and all AT Forms submitted.
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- FINAL
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-chloroethyi) ether
Chlorine (total residual, TRC) 1,1-dichloroethylene Bis (2-chloroisopropyl) ether
Dissolved oxygen 1,2-dichloropropane Bis (2-ethylhexyl) phthalate
Nitrate/Nitrite 1,3-dichloropropylene 4-bromophenyl phenyl ether
Kjeldahl nitrogen Ethylbenzene Butyl benzyl phthalate
Oil and grease Methyl bromide 2-chloronaphthalene
Phosphorus Methyl chloride 4-chiorophenyl 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 Dibenzo(a,h)anthracene
Beryllium 1,1,1-trichloroethane 1,2-dichlorobenzene
Cadmium 1,1,2-trichloroethane 1,3-dichlorobenzene
Chromium Trichloroethylene 1,4-dichlorobenzene
Copper Vinyl chloride 3,3-dichlorobenzidine
Lead Acid -extractable compounds: Diethyl phthalate
Mercury P-chloro-m-cresol Dimethyl phthalate
Nickel 2-chlorophenol 2,4-dinitrotoluene
Selenium 2,4-dichlorophenol 2,6-dinitrotoluene
Silver 2,4-dimethylphenol 1,2-diphenylhydrazine
Thallium 4,6-dinitro-o-cresol Fluoranthene
Zinc 2,4-dinitrophenol Fluorene
Cyanide 2-nitrophenol Hexachlorobenzene
Total phenolic compounds 4•nitrophenol Hexachlorobutadiene
Volatile ormanic compounds: Pentachlorophenol Hexachlorocyclo-pentadiene
Acrolein Phenol Hexachloroethane
Acrylonitrile 2,4,6-trichlorophenol Indeno(1,2,3-c d)pyrene
Benzene Base -neutral compounds: lsophorone
Bromoform Acenaphthene Naphthalene
Carbon tetrachloride Acenaphthylene Nitrobenzene
Chlorobenzene 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
Dichlorobromomethane Benzo(ghi)perytene 1,2,4-trichlorobenzene
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: Division of Water Quality, Surface Water Protection Section, Central Files, 1617 Mail
Service Center, Raleigh, North Carolina 27699-1617.

Nowell, Jackie
From: [e-mail]
Sent: Tuesday, August 18, 2009 3:19 PM
To: Nowell, Jackie
Subject: review of NC0020567, Elkin VWVTP
EPA has no comments on this draft permit.

Winston-Salem Journal
Advertising Affidavit
Winston-Salem Journal
P.O Box 3159
Winston-Salem, NC 27102
NCDENR/DWQ/POINT SOURCE BRANCH
ATTN: DINA SPRINKLE
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
Account Number
3376309
Date
August 14, 2009
Date Category
Description
Ad Size
Total Cost
08/14/2009 Legal Notices
PUBLIC NOTICE North Carolina Environment 2 x 33 L
237.45
PUBLIC NOTICE
North Carolina Environmental
Management 1ail Sera vice a Unit
Raleigh NC 27699-1617
Notice of intent to issue a
NPDES Wastewater Penult
The North Carolina Environmental Management
Commission proposes to issue a NPDES wastewater
discharge permit to the person(s) listed below.
Written comments regarding the proposed permit
will be accepted until 30 days after the publish date
of this notice. The Director of the NC Division of
Water Quality (DWQ) may hold a public hearing
should there be a significant degree of public in-
terest. Please mail comments and/or information
requests to DWQ at the above address. Interested
persons mayvisit the DWQ at 512 N. Salisbury
Street, Raleih, NC to review information on file.
Additional information on NPDES permits and this
notice may be found on our websits www.ncwater
quality.org, or by calling (919) 807-63304.
The Town of Elkin requested renewal of permit
NC0020567 for Elkin WWTP in Surly County this
permitted discharge is treated domestic wastewa-
ter to Yadkin River, Yadkin -Pee Dee River Basin.
WSk August 14, 2009
Media General Operations, Inc.
Publisher of the
Winston-Salem Journal
Forsyth County
Before the undersigned, a Notary Public of Forsyth County, North Carolina, duly
commissioned, qualified, and authorized by law to administer oaths, personally appeared
D.H. Stanfield, who by being duly sworn deposes and says: that he is Controller of the
Winston-Salem Journal, engaged in the publishing of a newspaper known as Winston-Salem
Journal, published, issued and entered as second class mail in the City of Winston-Salem, in
said County and State: that he 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 the Winston-Salem Journal on the following dates:
08/14/2009
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
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 14th day of August, 2009
(signature of pers n m ' ' i davit)
Sworn to and subscribed before me, this 14th day of Augus
a
KIMALEY JOHNSON
S 22 �'� NOTARY PUBLIC
My Commission expires/ , FORSYTH COUNTY
STATE OF NORTH CARRpLI A
MY COMMISSION EXPIRES— •Lola,
.ter'+ - - - - - - - - -
THIS IS NOT A BILL. PLEASE PAY FROM INVOICE. THANK YOU

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. BoK 85-7; Elkin, North Carolina 28621
/2(C:1js/.4//
(,
Facility Address:
211 Marion Road; Elkin, North Carolina 28621
Permitted Flow
1.8 MGD
Type of Waste:
Domestic (100%)
Facility/Permit Status:
Class III /Active; Renewal
County:
Surry County
Miscellaneous
Receiving Stream:
Yadkin River
Regional Office:
Winston-Salem
(WSRO)
Stream Classification:
C
State Grid / USGS Quad:
C 1 5NE
303(d) Listed?
No
Permit Writer:
Jackie Nowell
Subbasin:
03-07-02
Date:
July 29, 2009
Drainage Area (mi2):
878
Summer 7Q10 (cfs)
317
Winter 7Q 10 (cfs)
30Q2 (cfs)
454
No information
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 III facility with a permitted flow of 1.8 MGD. The facility
is 100% domestic and serves 3759 customers in Elkin. The current permit expired on January
31, 2009 and has been administratively extended by DWQ. The Permittee submitted EPA Form
2A on September 2, 2008 in order to request renewal of the permit. A previous request for
expansion of this facility to 2.5 MGD has been withdrawn by the Town. The Town has reported
its intentions to send their wastewater to the Jonesville WWTP in the future. Based on this
future consolation, 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 Yadkin River is classified C waters at this point and is not on the 2006-303(d) list.
As a member of the Yadkin/Pee Dee River Basin Association (YPDRBA), Elkin is .not required
to individually monitor any instream parameters. Therefore no instream data were available for
analysis. *Members of the YPDRBA, have agreed to perform additional monitoring for the High
Rock Reservoir TMDL Study. Parameters to be sampled include TKN, NO2+NO3, Total
Nitrogen and Turbidity.*
Effluent Discharge Monitoring Report (DMR) data from January 2006 through April 2009 was
reviewed. The Permittee maintained compliance with the monthly average permit limits for all
parameters. It should be noted that monitoring frequencies were sometimes violated.
Fact Sheet
NPDES NC0020567 Renewal
Page 1

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.
Toxicity Test Results
Required: Chronic Ceriodaphnia Quarterly Limit at 0.87%
Test months: March, June, September and December
Permittee has passed all whole effluent toxicity tests from March 2004 through March 2009.
Recommend that chronic toxicity test be continued in this permit renewal.
Reasonable Potential Analysis
The Permittee submitted the required annual monitoring and pollutant scan with the renewal
application. Pollutant scans were also submitted with the discharge monitoring reports. PPAs
were submitted in December 2006, March and December 2007, and April 2008. Most data were
below detectable levels, with the exception of copper and zinc. Over the three year period, there
were singular hits for mercury, cyanide, phenols and chloroform. Because of the tremendous
amount of dilution in the receiving stream, the Yadkin River, there was no reasonable potential
shown for any of these parameters. No effluent monitoring for metals or other priority
pollutants will be required in the permit. See attached RPA results..
SUMMARY OF PROPOSED CHANGES
• The addition of the statement regarding TRC detection levels.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: August 11, 2009
Permit Scheduled to Issue (tentative: October 5, 2009
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please contact
Jackie Nowe at [phone] or [e-mail].
NAME: � .,-� � � DATE: g/i/Z407
REG NA * FFICE COMME TS
NAME: DATE:
Fact Sheet
NPDES NC0020567 Renewal
Page 2

REASONABLE POTENTIAL ANALYSIS
Elkin WWTP
NC0020567
Time Period 1/2006-5/2009
Ow (MGD) 1.8
'701 0S (cfs) 317
7010W (cfs) 454
3002 (cfs) 0
Avg. Stream Flow, QA (cfs) 878
Reeving Stream Yadkin River
WWTP Class IV
IWCC (%) 0 7010S 0.8724
0 7010W 0.6108
0 3002 N/A
O OA 0.3168
Stream Class C
Outfall 001
Qw=1.8MGD
PARAMETER
TYPE
(1)
STANDARDS &
CRITERIA (2)
POL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
1/CWDS/ KFAY /
Chronic Aerate
a IDot Nix PndCw Albwwbiodo
Acute: N/A
Arsenic
C
10
ug/L
4 0 1
1.5
_ __
_Ail data below_ detection._ _ _ _ __ _ _
Note: n<12
_ ___
Chronic: 3,157
Insufficient data for RP. Note that max pre- concentration
Limited data set
is < chronic or acute allowable conc. Monitor In PPA
Acute: N/A
Beryllium
C
6.5
ug/L
4 0
Note: n<12
1.0
_ ___ _ __
Chronic: 2,052
_Alldata_below_detecction._ _ _ _ _-__ _ _
tnsuffkient data for RP. Note that max prod concentration
Limited data set
is < chronic or acute allowable conc. Monitor in PPA
Acute: 15
Cadmium
NC
2 15
ug/L
4 0
3.0
data_ below detection. _ _ ____ _ _
Note: n<12
_ _ _
Chronic: -- 229--
_All
Insufficient data for RP. Note that max prod concentration
Limited data set
is < chronic or acute allowable conc. Monitor in PPA
Acute: 1,022
Chromium
NC
50 1,022
ug/L
4 0
2.5
All data_ below_ detection. _ _
Note: n<12
___ __
Chronic: 5,731
Insufficient data for RP. Note that max. prod. concentration
Limited data set
is < chronic or acute allowable conc. Monitor in PPA I
Acute: 7
Insufficient data for RP. Note that max. prod. concentration
Copper
NC
7 AL 7.3
ugh _
4 3
Note: n<12
71.6
_ _. _ _ _
Chronic: 802
>than acute allowable. However, because copper is an_acti
level standard, and all toxicity tests have been passed, will
Limited data set
recommend continue monitoring in annual PPA
Acute: 22
Cyanide
NC
5 N 22
10
ugh.
4 1
5.0
_ ________.___ ___
Note: n<12
_______
Chronic: 573
Insufficient data for RP. Note that max prod concentration
Limited data set
is < chronic or acute allowable conc. Monitor In PPA
Acute: N/A
Fluoride
NC
1.800
ug/l.
0 0
N/A
_ _ __ _ _
_._.—_—_—_—._._.-----.—._._.—.—.—
Chronic: 206,316
Acute: 34
Lead
NC
25 N 33.8
ugh.
4 0
2.5
All data_ below detection. Insuflictnentdata for RPA
Note: nett
_ _ _-_ _ __
Chronic: 2,866
Note that max. prodconcentrationn-_-----.-. —_—
Limited data set
is < chronic or acute allowable conc. Monitor In PPA
Acute: N/A
Mercury
NC
12
2.0000
ng/L
4 1
Note: n<12
810.3000
___ _ __
Chronic: 1,375
_ _ _ _ _ ___ _ _ _ _ _ _ _ _
iissufficient data for RP Note that max prod concentration
Limited data set
is < chronic or acute allowable conc. Monitor In PPA
Acute: N/A
Molybdenum
A
3,500
ug/L
0 0
N/A
_ _ ___ _ _
-------_—_—.—._.—_—_—_—,____—.—.—
Chronic: #VALUEI
Acute: 261
Nickel
NC
88 261
ug/L
4 0
Note: n<12
2.5
_ _ ___ _ ___
Chronic: 10,087
_ _ _ _ ___ _ _
insufficient data for RP Nate that max prod. concentration
Limited data set
is < chronic or acute allowable conc. Monitor In PPA
Acute: N/A
Phenols
A
1 N
ugh.
4 2
391.6
_r
Note: nc12
Croni__V_U_I
_No
_ NC_tandard as_Cwater_N_ 3002 o_on_ reco_
Limited data set
Continue monitoring in annual PPA
Acute: 56
Selenium
NC
5.0 56
ug/L
4 0
1.0
___
Note: n<12
__ ____________________
Chronic: 573
Insufficient data for RP Note that max prod concentration
Limited data set
is < chronic or acute allowable conc. Monitor In PPA
Acute: 1
Ail data below detection. tnsufficioent data for RPA.
Sliver
NC
0.06 AL 1.23
ug/L
4 0
Note: n<12
2.5
_ _
Chronic: "__7___
Max. prod. <chronicand_>acute_however because all data
below detect recommend no monitoring U permit Continue
Limited data set
to monitor In annual PPA I
Acute: 67
insufficient data for RP. Note that max. prod. concentration
Zinc
NC
50 AL 67
ug/L
4 4
Note: n<12
207.4
_ _
Chronic: 5,731__
>than acute allowable. However, because copper Is an act
level standard. and all toxicity tests have been passed, will I
'
Limited data set
recommend continue monttortng to annual PPA
• Legend:
C = Carcinogenic
NC = Non carclnopen/c
A = Aesthetic
" Freshwater Discharge
20567rpe2009.xis. tpa
7/30/2009

REASONABLE POTENTIAL ANALYSIS
2
Arsenic
Beryllium
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
Dec-2007 < 3.0 1.5 Std Dev. 0.0000 1 Dec-2007 `<;. 2 1.0 Std Dev. 0.0000
Apr-2008 < 3.0 1.5 Mean 1.5000 2 Apr-2008 '-<. 2 1.0 Mean 1.0000
Mar-2007 < 3.0 1.5 C.V. 0.0000 3 Mar-2007 ; < 2 1.0 C.V. 0.0000
Dec-2006 < 3.0 1.5 n 4 4 Dec-2006 4< 2 1.0 n 4
5
Mult Factor = 1.0000 6 VA Mult Factor = 1.0000
Max. Value 1.5 ug/L 7 Max. Value 1.0 ug/L
Max. Pred Cw 1.5 ug/L 8 ! Max. Pred Cw 1.0 ug/L
9
10
11
12
13
14
15
20567rpa2009.xls, data
- 1 - 7/30/2009

REASONABLE POTENTIAL ANALYSIS
3
4
Cadmium
Chromium
1
2
3
4
5
6
7
8
9
10=
11
12
13
14
15
Date
Dec-2007
Apr-2008
Mar-2007
Dec-2006
Data
e:
L
.•
+_<<
t µA
1
1
1
2
BDL=1/2DL
0.5
0.5
0.5
1.0
Results
Std Day.
Mean
C.V.
n
Mutt Factor =
Max. Value
Max. Pred Cw
0.2500
0.6250
0.4000
4
2.9500
1.0 ug/L
3.0 ug/L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Date
Dec-2007
Apr-2008
Mar-2007
Dec-2006
Data
P
, -
is
•. IT
.i
�
}a
BDL=1/2DL
5 2.5
5 2.5
5 2.5
5 2.5
Results
Std Deli.
Mean
C.V.
n
Mutt Factor =
Max. Value
Max. Pred Cw
0.0000
2.5000
0.0000
4
1.0000
2.5 ug/L
2.5 ug/L
-2-
20567rpa2009.xls, data
7/30/2009

REASONABLE POTENTIAL ANALYSIS
5
6
Copper
Cyanide
Date
Data
BDL=1/2DL
Results
Date
Data
BDL=1/2DL
Results
1
Dec-2007
"
18
18.0
Std Dev.
6.6833
1
Dec-2007
''<
5
5.0
Std Dev.
0.0000
2
Apr-2008
13
13.0
Mean
14.0000
2
Apr-2008
' <-
5
5.0
Mean
5.0000
3
Mar-2007
' <
10
5.0
C.V.
0.4774
3
Mar-2007
! <"
5
5.0
C.V.
0.0000
4
Dec-2006
:
20
20.0
n
4
4
Dec-2006
;.,.
7
5.0
n
4
5
5
6
Mult Factor =
3.5800
6
Mult Factor =
1.0000
7
Max. Value
20.0 ug/L
7
si.
Max. Value
5.0 ug/L
8
Max. Pred Cw
71.6 ug/L
8
Max. Pred Cw
5.0 ug/L
9
9
10
10
11
11
12
12
.
13
13
14
14
'.
15
15
rk!
20567rpa2009.xls, data
- 3 - 7/30/2009

REASONABLE POTENTIAL ANALYSIS
7
8
Fluoride
Lead
Date Data
BDL=1/2DL
Results
Date Data
BDL=1/2DL
Results
1
Std Dev.
NO DATA
1
Dec-2007
r
5 2.5
Std Dev.
0.0000
2
Mean
NO DATA
2
Apr-2008
}
5 2.5
Mean
2.5000
3
C.V.
NO DATA
3
Mar-2007
5 2.5
C.V.
0.0000
4
n
0
4
Dec-2006
,
5 2.5
n
4
5
5
6
'
Mutt Factor =
N/A
6
Mutt Factor =
1.0000
7
Max. Value
0.0 ug/L
7
Max. Value
2.5 ug/L
8
1
Max. Pred Cw
N/A ug/L
8
Max. Pred Cw
2.5 ug/L
9
If'
9
10
10
11
11
12
12
13
13
..
,
14
E
14
15
��
15
A.,
-4-
20567rpa2009.xls, data
7/30/2009

REASONABLE POTENTIAL ANALYSIS
9
10
Mercury
Molybdenum
Date Data
BDL=1/2DL
Results
Date
Data
BDL=1/2DL
Results
1
Dec-2007
0.2 1.0
Std Dev.
14.1000
1
Std Dev.
NO DATA
2
Apr-2008
.�
29.2 29.2
Mean
8.0500
2
Mean
NO DATA
3
Mar-2007
0.2 1.0
C.V.
1.7516
3
C.V.
NO DATA
4
Dec-2006
0.2 1.0
n
4
4
n
0
5
5
�._
6
Mutt Factor =
27.75
6
e.Mutt
Factor =
N/A
7
•
Max. Value
29.2 ng/L
7
Max. Value
0.0 ug/L
8
Max. Pred Cw
810.3 ng/L
8
Max. Pred Cw
N/A ug/L
9
i3
9
10
10
„1
11
11
,.' •...
12
..,
12
`.
13
13
14
''
14'�
15
15
:
20567rpa2009.xls, data
- 5 - 7/30/2009

REASONABLE POTENTIAL ANALYSIS
11
12
•
Nickel
Phenols
1
2
3
4
5
6
7
8
9
10
11
12:
14
15
Date
Dec-2007
Apr-2008
Mar-2007
Dec-2006
•
Data
+ ,3
ti
.,:
tt
A
F,
a
7
• r
r�
x"•15
5
5
5
5
BDL=1/2DL
2.5
2.5
2.5
2.5
Results
Std Dev.
Mean
C.V.
n
Mult Factor =
Max. Value
Max. Pred Cw
0.0000
2.5000
0.0000
4
1.0000
2.5 ug/L
2.5 ug/L
1
2
3
4
5
6
7
8
9
10
11
12
14
Date
Dec-2007
Apr-2008
Mar-2007
Dec-2006
Data
x,
5.5
26
5
5
BDL=1/2DL
5.5
26.0
2.5
2.5
Results
Std Dev.
Mean
C.V.
n
Mutt Factor =
Max. Value
Max. Pred Cw
11.3385
9.1250
1.2426
4
15.0600
26.0 ug/L
391.6 ug/L
-6-
20567rpa2009.xls, data
7/30/2009

REASONABLE POTENTIAL ANALYSIS
13
14
Selenium
Silver
Date
Data
BDL=1/2DL
Results
Date
Data
BDL=1/2DL
Results
1
Dec-2007
<
2
1.0
Std Dev.
0.0000
1
Dec-2007
:<.
4 ;.
5
2.5
Std Dev.
0.0000
2
Apr-2008
<
2
1.0
Mean
1.0000
2
Apr-2008
1<?
5
2.5
Mean
2.5000
3
Mar-2007
<
2
1.0
C.V.
0.0000
3
Mar-2007
F.c
5
2.5
C.V.
0.0000
4
Dec-2006
<.
2
1.0
n
4
4
Dec-2006
I`s-,
at.
5
2.5
n
4
5
5
!4
6
Mult Factor =
1.0000
6
.
Mutt Factor =
1.0000
7
Max. Value
1.0 ug/L
7
t'
Max. Value
2.5 ug/L
8
Max. Pred Cw
1.0 ug/L
8
Max. Pred Cw
2.5 ug/L
9
9
t:
10
10
11
11
12
12
13
13
14
14
15
15
20567rpa2009.xts, data
- 7 - 7/30/2009

REASONABLE POTENTIAL ANALYSIS
15
Zinc
Date Data BDL=1/2DL Results
1 Dec-2007 ?', 33 33.0 Std Dev. 17.2627
2 Apr-2008 37 37.0 Mean 34.0000
3 Mar-2007 12 12.0 C.V. 0.5077
4 Dec-2006 ? L 54 54.0 n 4
5
6
f
7
8
9
10
11
12 t=
13
14
15
Mutt Factor = 3.8400
Max. Value 54.0 ug/L
Max. Pred Cw 207.4 ug/L
20567rpa2009.xls, data
- 8 - 7/30/2009

Hobbs, Upchurch & Associates, P.A.
Consulting Engi
REcEIVED
February 5, 2009
NC DENR — Water Quality/Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
ErR - ^ ?nog
DENR - WATER QUALITY
POINT SOURCE BRANCH
Re: NPDES Permit Application/Major Modification for expansion of the Town of Elkin
WWTP NC0020567
To NPDES Reviewer:
In February of 2008 a permit renewal application along with a request for permit modification
raising the allowable discharge from 1.8 to 2.5 MGD for the subject facility was submitted to
Susan Wilson of the Point Source Branch. The expanded capacity was needed to accommodate
the Yadkin Valley Sewer Authority (YVSA) regionalization effort. To date the renewal and
modification have not been granted pending approval of the preliminary engineering report.
Since the original application was submitted, two industrial facilities, Vaughan Basset
Manufacturing and Blythe Distribution, have closed. These facilities discharged significant
wastewater flows to the YVSA system. For this reason, the scope of the proposed improvements
at the existing YVSA (Elkin) WWTP has been reduced to only improvements required to
transfer flows from Jonesville. Previously proposed improvements to increase the capacity of the
facility have been eliminated from the scope. This change in scope was unanimously approved
by the YVSA Board
Due to the reduced flows and reduced scope of improvements at the treatment facility, we
request withdrawing the previously submitted major modification request to increase discharge
capacity, and a review of the permit renewal application based on the discharge capacity
remaining at 1.8 MGD.
If you have any questions or need additional information, please give me a call at your
convenience.
Sincerely,
HOBBSCH & ASSOCIATES, P.A.
Eric L, Howard, P.E.
Cc: File
Charlotte, NC • Telephone [phone] • Fax [phone] • e-mail: [e-mail]
Southern Pines • Nags Head • Charlotte • Beaufort • Wilmington
J:\EK0702-WWTP\10011-NPDES 02-05-09.doc

Town of Elkin
Department of
Public Works
L7
September 2, 200?
Mrs. Dina Sprinkle
NC DENR/DWQ/Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Town of Elkin WWTP
NPDES Permit No. NC0020567
Dear Mrs. Sprinkle,
Department of
Public Utilities
-,i
.! SEP 1 8 2008
L
DF.NR - WATFR ; „z. _�
Enclosed for your review is an amended NPDES Permit renewal package for the Elkin
Wastewater treatment plant. The application was amended to include the results of the
Priority Pollutant Analysis. Our existing permit expires on January 31, 20009. 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 February 1, 2004.
If you have any questions concerning the information provided, please feel free to give
me a call.
Sincerely,
Town of Elkin
A10,,
Robert Fuller
Public Works Director
Cc: Hal Transou
Gary Stainback
125 Carter Mill Rd. • Elkin, North Carolina 28621 • [phone] • FAX [phone]

ELKIN WASTEWATER TREATMENT PLANT
Sand Drying Bed
Sand Drying
Sand Drying BeId
[Chlorine
Contact
Chlorine
Sulfur Dioxide
Operator Building
Chemical Storage
Sludge
Holding
Sludge
Holdin
Trickling
Filter
CClarifier
Aeration
\ Basin /
Primary
Clarifier
Primary Clarifier

Hobbs, Upchurch & Associates, PA.
Consulting Engineers
1300 Baxter Street • Suite 108 • Charlotte, NC 28204
February 26, 2008
Susan Wilson
NC DENR — Water Quality/Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: NPDES Permit Application for expansion of the Town of Elkin WWTP
Ms. Wilson:
Enclosed is the NPDES permit application for expansion of the existing Town of Elkin WWTP
from the current 1.8 MGD permitted capacity to 2.5 MGD permitted capacity. Page 8, section B-
5, d of the application outlines the schedule for the expansion, with plant expansion complete in
January of 2010. The planned expansion is to accommodate regional treatment of existing flows
generated from the Towns of Jonesville and Ronda. Engineering alternatives analysis has be
performed and documented in the Preliminary Engineering Report and Environmental
Assessment prepared and submitted to DENR Construction Grants and Loans.
The application includes the most recent priority pollutant scans, toxicity testing, a figure
depicting the plant location and treatment process schematic for the existing and expanded plant
configurations.
If you have any questions, please give me a call at your convenience.
Sincerely,
HOBBS, UPCHURCH & ASSOCIATES, P.A.
Bradley H. Bucy, P.E.
Cc: File
Enclosure: NPDES Permit application
Charlotte, NC • Telephone [phone] • Fax [phone]
Southern Pines • Myrtle Beach • Nags Head • Beaufort
J:\EK0702-WWTP\l-S Wilson 02-26-08.doc

FACILITY NAME AND PERMIT NUMBER:
Elkin WWTP, NC0020567
PERMIT ACTION REQUESTED:
Expansion
RIVER BASIN:
Yadkin Pee Dee
;BASIC:: PPLICATIONM -ORMATION:
PARA•BASCAPCATIONINORAIFORALLAPUANTS:M
All treatment works must complete questions A.1 through A.8 of this Basic Application Information Packet.
A.1. Facility Information.
Facility Name Elkin WVVTP
Mailing Address 211 Marion Rd
Elkin, NC 28621
Contact Person Robert Fuller
Title Public Works Director
Telephone Number 1336) 835-9800
Facility Address 211 Marion Rd
(not P.O. Box) Elkin. NC 28621
A.2. Applicant Information. If the applicant is different from the above, provide the following:
Applicant Name Hobbs. Upchurch and Associates
Mailing Address 1300 Baxter Street. Suite 108
Charlotte. NC
Contact Person Brad Bucv. PE
Title Project Manager
r
Telephone Number 1704) 342-3000
Is the applicant the owner or operator (or both) of the treatment works?
to the facility or the applicant.
existing environmental permits that have been issued to the treatment works
PSD
0 owner ■ operator
Indicate whether correspondence regarding this permit should be directed
■ facility 0 applicant
A.3. Existing Environmental Permits. Provide the permit number of any
(include state -issued permits).
NPDES NC0020567
UIC Other WQ0007349
RCRA Other
A.4. Collection System Information. Provide information on municipalities and areas served by the facility. Provide the name and population of each
entity and, if known, provide information on the type of collection system (combined vs. separate) and its ownership (municipal, private, etc.).
Name Population Served Type of Collection System Ownership
Elkin Wastewater Collection System 4.173 (2006) Separate Municipal (Town of Elkin)
Total population served 4.173
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 2 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
A.5. Indian Country.
a. Is the treatment works located in Indian Country?
❑ Yes ®No
b. Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from (and eventually flows
through) Indian Country?
❑ Yes ®No
A.6. Flow. Indicate the design flow rate of the treatment plant (i.e., the wastewater flow rate that the plant was built to handle). Also provide the
average daily flow rate and maximum daily flow rate for each of the last three years. Each year's data must be based on a 12-month time period
with the 12th month of "this year" occurring no more than three months prior to this application submittal.
a. Design flow rate 1.8 mgd
Two Years Ago
Last Year This Year
b. Annual average daily flow rate 0.571 0.557 0.539
c. Maximum daily flow rate 1.781
1.492 1.450
A.7. Collection System. Indicate the type(s) of collection system(s) used by the treatment plant. Check all that apply. Also estimate the percent
contribution (by miles) of each.
® Separate sanitary sewer 100 %
O Combined storm and sanitary sewer %
A.8. Discharges and Other Disposal Methods.
a. Does the treatment works discharge effluent to waters of the U.S.? ® Yes 0 No
If yes, list how many of each of the following types of discharge points the treatment works uses:
i. Discharges of treated effluent
ii. Discharges of untreated or partially treated effluent
iii. Combined sewer overflow points
iv. Constructed emergency overflows (prior to the headworks)
v. Other
b. Does the treatment works discharge effluent to basins, ponds, or other surface impoundments
that do not have outlets for discharge to waters of the U.S.? 0 Yes
If yes, provide the following for each surface impoundment:
Location:
1
® No
Annual average daily volume discharge to surface impoundment(s) mgd
Is discharge 0 continuous or 0 intermittent?
c. Does the treatment works land -apply treated wastewater? 0 Yes ® No
If yes, provide the following for each land application site:
Location:
Number of acres:
Annual average daily volume applied to site: mgd
Is land application 0 continuous or 0 intermittent?
d. Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works? 0 Yes ® No
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 3 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NCOO2O567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
If yes, describe the mean(s) by which the wastewater from the treatment works is discharged or transported to the other treatment works
(e.g., tank truck, pipe).
If transport is by a party other than the applicant, provide:
Transporter Name
Mailing Address
Contact Person
Title
Telephone Number ( )
For each treatment works that receives this discharge, provide the following:
Name
Mailing Address
Contact Person
Title
Telephone Number ( )
If known, provide the NPDES permit number of the treatment works that receives this discharge
Provide the average daily flow rate from the treatment works into the receiving facility. mgd
e. Does the treatment works discharge or dispose of its wastewater in a manner not included
in A.B. through A.8.d above (e.g., underground percolation, well injection):
If yes, provide the following for each disposal method:
Description of method (including location and size of site(s) if applicable):
❑ Yes ® No
Annual daily volume disposed by this method:
Is disposal through this method 0 continuous or 0 intermittent?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 4 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
WASTEWATER DISCHARGES:
If you answered "Yes" to question A.8.a, complete questions A.9 through A.12 once for each outfall (including bypass points) through
which effluent is discharged. Do not include information on combined sewer overflows In this section. if you answered "No" to question
A.8.a, go to Part B, "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd."
A.9. Description of Outfall.
a. Outfall number 001
b. Location Elkin 28621
(City or town, if applicable)
Sun
(Zip Code)
NC
(County) (State)
36 ° 14' 51" 80 ° 49' 55"
(Latitude) (Longitude)
c. Distance from shore (if applicable) ft.
d. Depth below surface (if applicable) ft.
e. Average daily flow rate 0.539 mgd
f. Does this outfall have either an intermittent or a periodic discharge? 0 Yes ® No (go to A.9.g.)
If yes, provide the following information:
Number f times per year discharge occurs:
Average duration of each discharge:
Average flow per discharge: mgd
Months in which discharge occurs:
g. Is outfall equipped with a diffuser? 0 Yes ® No
A.10. Description of Receiving Waters.
a. Name of receiving water Yadkin River
b. Name of watershed (if known) Yadkin — Pee Dee Sub -basin 03-07-02
United States Soil Conservation Service 14-digit watershed code (if known):
c. Name of State Management/River Basin (if known): Yadkin Pee Dee
United States Geological Survey 8-digit hydrologic cataloging unit code (if known):
d. Critical low flow of receiving stream (if applicable)
acute n/a
cfs
chronic cfs
e. Total hardness of receiving stream at critical low flow (if applicable): n/a mg/I of CaCO3
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 5 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
❑ Primary Secondary
❑ Advanced I Other. Describe:
b. Indicate the following removal rates (as applicable):
Design BOD5 removal or Design CBOD5 removal 95 ok
Design SS removal 95 %
Design P removal 30 %
Design N removal 90 %
Other %
c. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe:
Chlorine Disinfection
If disinfection is by chlorination is dechlorination used for this outfall? o Yes ■ No
Does the treatment plant have post aeration? 0 Yes ❑ No
A.12. Effluent Testing Information. Ali Applicants that discharge to waters of the US must provide effluent testing data for the following
parameters. Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent is
discharged. Do not include information on combined sewer overflows in this section. All information reported must be based on data
collected through analysis conducted using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of
40 CFR Part 136 and other appropriate QAIQC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a
minimum, effluent testing data must be based on at least three samples and must be no more than four and one-half years apart.
0 number. 001
PARAMETER
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
Value
Units
Value
Units
Number. of Samples
pH (Minimum)
su.(Maximum)
r
::;
s.u.
A
Flow Rate
1.781
MGD
0.560
MGD
36
Temperature (Winter)
17
°C
11.87
°C
36
Temperature (Summer)
24
°C
21.91
°C
36
* For pH please report a minimum and a maximum daily value
POLLUTANT
MAXIMUM DAILY
DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
ML/MDL
Conc.
Units
Conc.
Units
Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN
DEMAND (Report one)
BOD5
27
mg1L
1.99
mg!L
36
SM5210B
2000
CBOD5
FECAL COLIFORM
380
/100mL
2.84
1100mL
36
SM9221C
1/100mL
TOTAL SUSPENDED SOLIDS (TSS)
41
mglL
3.95
mglL
36
SM2540D
1000
_
END. OF PART A,
REFER TO THE APPLICATION OVERVIEW;(PAGE 1) TO, DETERMINE WHICH OTHER;PARTS
OF :FORM 2AYQU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 6 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
BASIC.rAPPLICATION,INFORMATION .
PART:B. ADDITIONAL APPLICATION:INFORMIAT1ON .FORAPPLICANTS WITH A.; DESIGN, FLOW ;GREATER THAN OR
EQUAL TO, 0.1.MGD (10p,000gallons'per day);,
All applicants with a design flow rate Z 0.1 mgd must answer questions B.1 through B.6. All others go to Part C (Certification).
B.1. Inflow and Infiltration. Estimate the average number of gallons per day
102.000 gpd
that flow into the treatment works from inflow and/or infiltration.
visual inspections and pump station evaluations. A list of
Briefly explain any steps underway or planned to minimize inflow and infiltration.
An I & I Study has been performed including flow metering,
prioritized projects has been developed in and effort to reduce I & I.
B.2. Topographic Map. Attach to this application a topographic map of the
map must show the outline of the facility and the following information.
area.) See Exhibit 1
a. The area surrounding the treatment plant, including all unit processes.
b. The major pipes or other structures through which wastewater enters
treated wastewater is discharged from the treatment plant. Include
c. Each well where wastewater from the treatment plant is injected underground.
d. Wells, springs, other surface water bodies, and drinking water wells
works, and 2) listed in public record or otherwise known to the applicant.
e. Any areas where the sewage sludge produced by the treatment works
f. If the treatment works receives waste that is classified as hazardous
or special pipe, show on the map where the hazardous waste enters
B.3. Process Flow Diagram or Schematic. Provide a diagram showing the
backup power sources or redundancy in the system. Also provide a water
chlorination and dechlorination). The water balance must show daily average
rates between treatment units. Include a brief narrative description of
B.4. Operation/Maintenance Performed by Contractor(s).
Are any operational or maintenance aspects (related to wastewater treatment
area extending at least one mile beyond facility property boundaries. This
(You may submit more than one map if one map does not show the entire
the treatment works and the pipes or other structures through which
outfalls from bypass piping, if applicable.
that are: 1) within % mile of the property boundaries of the treatment
is stored, treated, or disposed.
under the Resource Conservation and Recovery Act (RCRA) by truck, rail,
the treatment works and where it is treated, stored, and/or disposed.
processes of the treatment plant, including all bypass piping and all
balance showing all treatment units, including disinfection (e.g.,
flow rates at influent and discharge points and approximate daily flow
the diagram. See Exhibit 2
and effluent quality) of the treatment works the responsibility of a
and describe the contractor's responsibilities (attach additional
contractor? 0 Yes ■ No
If yes, list the name, address, telephone number, and status of each contractor
pages if necessary).
Name: Hydro Management Services
Mailing Address: PO Box 1279
Clemmons, NC 27012
Telephone Number: [phone]
Responsibilities of Contractor. Operation and Maintenance of the VW TP
8.6. Scheduled improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or
uncompleted plans for improvements that will affect the wastewater treatment, effluent quality, or design capacity of the treatment works. If the
treatment works has several different implementation schedules or is planning several improvements, submit separate responses to question B.5
for each. (If none, go to question B.6.)
a. List the outfall number (assigned in question A.9) for each outfall that is covered by this implementation schedule.
001
b. Indicate whether the planned improvements or implementation
schedule are required by local, State, or Federal agencies.
■ Yes ►_ No
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 7 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
c. If the answer to B.5.b is "Yes," briefly describe, including new maximum daily inflow rate (if applicable).
d. Provide dates imposed
applicable. For improvements
applicable. Indicate
Implementation Stage
- Begin Construction
- End Construction
- Begin Discharge
- Attain Operational
e. Have appropriate
Describe briefly;
by any compliance schedule
planned independently
dates as accurately as possible.
Level
permits/clearances concerning other
tf xpansion of the existing WWTP
or any actual dates of completion for the implementation steps listed
of local, State, or Federal agencies, indicate planned or actual completion
Schedule Actual Completion
MM/DD/YYYY MM/DD/YYYY
below, as
dates, as
Yes N No
03/01/2009
requirements
1.8 MGD permitted
/ /
01/01/2010
/ /
01/01/2010
/ /
01/01/2010
/ /
Federal/State
from existing
been obtained? ❑
capacity to 2.5 MGD Capacity to accomodate'
Regionalization of treatment facilities at Elkin, Jonesville and Ronda.
B.6. EFFLUENT TESTING DATA (GREATER THAN 0.1 MGD
Applicants that discharge to waters of the US must
effluent testing required by the permitting authority
on combine sewer overflows in this section. All information
using 40 CFR Part 136 methods. In addition, this data
QA/QC requirements for standard methods for analytes
based on at least three pollutant scans and must be
Outfall Number: 001
ONLY).
provide effluent testing data for the following parameters. Provide
for each outfall through which effluent is discharged. Do not include
the indicated
information
conducted
other appropriate
data must be
reported must be based on data collected through analysis
must comply with QA/QC requirements of 40 CFR Part 136 and
not addressed by 40 CFR Part 136. At a minimum effluent testing
no more than four and on -half years old.
POLLUTANT
MAXIMUM DAILY
DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
ML/MDL
Conc.
Units
Conc.
Units
Smberof
Nu
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA (as N)
15.5
mg/L
0.4
mglL
36
EPA350.1
100
CHLORINE (TOTAL
RESIDUAL, TRC)
14.0
µg1L
0.4
ktg1L
36
SM4500C1B
50
DISSOLVED OXYGEN
6.6
mg/L
6.1
mg/L
24
SM4500C
TOTAL KJELDAHL
NITROGEN (TKN)
15.5
mg/L
0.95
mg/L
12
EPA351.2
20
NITRATE PLUS NITRITE
NITROGEN
23.2
mg/L
23.2
mg/L
36
353.2
20
OIL and GREASE
< 5.0
mg/L
< 5.0
mg/L
4
EPA1664a
20
PHOSPHORUS (Total)
6.6
mg/L
1.5
mg/L
36
365.4
5.0
TOTAL DISSOLVED SOLIDS
(TDS)
26.9
mg/L
24.2
mg/L
4
EPA160.1
50
OTHER
END OF PART B.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 8 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
BASIC APPLICATION INFORMATION
PART C. CERTIFICATION
All applicants must complete the Certification Section. Refer to instructions to determine who is an officer for the purposes of this
certification. All applicants must complete all applicable sections of Form 2A, as explained in the Application Overview. Indicate below which
parts of Form 2A you have completed and are submitting. By signing this certification statement, applicants confirm that they have reviewed
Form 2A and have completed all sections that apply to the facility for which this application is submitted.
Indicate which parts of Form 2A you have completed and are submitting:
El Basic Application Information packet Supplemental Application Information packet:
El Part D (Expanded Effluent Testing Data)
El Part E (Toxicity Testing: Biomonitoring Data)
❑ Part F (Industrial User Discharges and RCRA/CERCIA Wastes)
0 Part G (Combined Sewer Systems)
ALL APPLICANTS MUST COMPLETE THE FOLLOWING CERTIFICATION.
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who
manage the system or those persons directly responsible for gathering the information, the information is, to the best of my knowledge and belief, true,
accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment
for knowing violations.
Name and official title Full r, bl��ic Works Director
NNP
Signature ` - .CaD
Telephone number [phone]
Date signed 2' S- U
Upon request of the permitting authority, you must submit any other information necessary to assure wastewater treatment practices at the treatment
works or identify appropriate permitting requirements.
SEND COMPLETED FORMS TO:
NCDENR/ DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 9 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
SUPKEMENTAL,APPLICATIQN INFORMATION
PART,D. EXPANDED EFFLUENT TESTING DATA
Refer to the directions on the cover page to determine whether this section applies to the treatment works.
Effluent Testing: 1.0 mgd
to have) a pretreatment program,
pollutants. Provide the indicated
effluent is discharged. Do
and Pretreatment Works. If the treatment works has a design flow greater than or equal to 1.0
or is otherwise required by the permitting authority to provide the data, then provide effluent
effluent testing information and any other information required by the permitting authority
not include information on combined sewer overflows in this section. All information reported must
using 40 CFR Part 136 methods. In addition, these data must comply with QA/QC requirements
for standard methods for analytes not addressed by 40 CFR Part 136. Indicate in the
pollutants not specifically listed in this form. At a minimum, effluent testing data must be based
than four and one-half years old.
(Complete once for each outfall discharging effluent to waters of the United States.)
mgd or it has (or is required
testing data for the following
for each outfall through which
be based on data collected
of 40 CFR Part 136 and
blank rows provided below
on at least three pollutant
through analyses conducted
other appropriate QA/QC requirements
any data you may have on
scans and must be no more
Outfail number. 001
POLLUTANT `
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
MLIMDL
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
Samples
METALS (TOTAL RECOVERABLE), CYANIDE, PHENOLS, AND HARDNESS.
ANTIMONY
<.003
mg/L
<.003
mg/L
4
E200.8
0.003
ARSENIC
<.005
mg/L
<.004
mg/L
4
E200.8
0.003
BERYLLIUM
<.002
mg/L
<.002
mg/L
4
E200.8
0.002
CADMIUM
<.005
mg/L
<.004
mg/L
4
E200.8
0.001
CHROMIUM
<.010
mg/L
<.008
mg/L
4
E200.8
0.005
COPPER
.022
mg/L
.02
mg/L
4
E200.8
0.002
LEAD
<.005
mg/L
<.005
mg/L
4
E200.8
0.005
MERCURY
<0.2
/.tg/L
<0.2
Ftg/L
4
E200.8
0.20
NICKEL
<0.10
mg/L
<0.10
mg/L
4
E200.8
0.10
SELENIUM
<.002
mg/L
<.002
mg/L
4
E200.8
0.002
SILVER
<.010
mg/L
<0.10
mg/L
4
E200.8
0.010
THALLIUM
<.001
mg/L
<.001
mg/L
4
E200.8
0.001
ZINC
.054
mg/L
.040
mg/L
4
E200.8
0.01
CYANIDE
.007
mg/L
.006
mg/L
4
335.2/335.3
0.005
TOTAL PHENOLIC
COMPOUNDS
.018
mg/L
.0095
mg/L
3
420.1,510AB
0.005
HARDNESS (as CaCO3)
26.9
mg/L
24.23
mg/L
4
calc
n/a
Use this space (or a separate sheet) to provide information on other metals requested by the permit writer
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 10 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT .
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
MLIMDL
Co -
Conc.
Units
Mass
-.
Units
Conc.
Units
Mass,
Units
Number
of"
Samples
VOLATILE ORGANIC COMPOUNDS
ACROLEIN
< 50
µg/L
< 50
µg/L
4
E624
50 µg&L
ACRYLONITRILE
< 50
µg/L
< 50
µg/L
4
E624
50 µg/L
BENZENE
< 5
I.tg/L
< 5
µglL
4
E624
5 µg/L
BROMOFORM
< 5
µg/L
< 5
µg/L
4
E624
5 itg/L
CARBON
TETRACHLORIDE
< 5
µg/L
< 5
µg/L
4
E624
5 µg/L
CHLOROBENZENE
< 5
µg/L
< 5
µg/L
4
E624
5 µg/L
CHLORODIBROMO-
METHANE
< 5
µg/L
< 5
µg/L
4
E624
5 µg/L
CHLOROETHANE
< 10
µg/L
< 7
µglL
4
E624
5µg/L
2-CHLOROETHYLVINYL
ETHER
< 10
µg/L
< 10
µg/L
4
E624
10µg/L
CHLOROFORM
13.3
µg/L
<7.08
µg/L
4
E624
5µg/L
DICHLOROBROMO-
METHANE
5.90
µg/L
< 5
µg/L
4
E624
5µg/L
1,1-DICHLOROETHANE
< 5
µg/L
< 5
µg&L
4
E624
5µg/L
1,2-DICHLOROETHANE
< 5
AWL
< 5
µg/L
4
E624
5 µg/L
TRANS-1,2-DICHLORO-
ETHYLENE
< 5
µg/L
< 5
µglL
4
E624
5µg/L
1,1-DICHLORO-
ETHYLENE
< 5
,ug/L
< 5
µg/L
4
E624
5 µg/L
1,2-DICHLOROPROPANE
< 5
µg/L
< 5
µg/L
4
E624
5 µg/L
1,3-DICHLORO-
PROPYLENE
< 5
µglL
< 5
µg/L
4
E624
5 µg/L
ETHYLBENZENE
< 5
µg/L
< 5
µg/L
4
E624
5 µg/L
METHYL BROMIDE
< 10
µg/L
< 10
µg/L
4
E624
10 µg/L
METHYL CHLORIDE
< 5
AWL
< 5
µg/L
4
E624
5 µg/L
METHYLENE CHLORIDE
< 5
µg/L
< 5
µg/L
4
E624
5 µg/L
1,1,2,2-TETRA-
CHLOROETHANE
< 5
,ag/L
< 5
µg/L
4
E624
5µg/L
TETRACHLORO-
ETHYLENE
< 5
itg/L
< 5
µg/L
4
E624
5 µgIL
TOLUENE
< 5
µg/L
< 5
µg/L
4
E624
5 µg/L
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 11 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
Outfall number. 001
(Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE.
, AVERAGE DAILY, DISCHARGE
ANALYTICAL
METHOD
MLIMDL
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
Samples
1
TRICHLOROETHANE IC
<
10
µg/L
< 10
µg/L
4
E624
10 µg/L
TRICHLOROETHANE IC
<
5
µg/L
< 5
µg/L
4
E624
5 µg/L
TRICHLOROETHYLENE
<
5
µg/L
< 5
µg/L
4
E624
5 µg/L
VINYL CHLORIDE
<
10
µg/L
< 7
µg/L
4
E624
5µg/L
Use this space (or a separate sheet) to provide information on other volatile organic compounds requested by the permit writer
ACID -EXTRACTABLE COMPOUNDS
P-CHLORO-M-CRESOL
2-CHLOROPHENOL
<
10
µg/L
< 10
µg/L
4
E625
10 µg/L
2,4-DICHLOROPHENOL
<
10
µg/L
< 10
µg/L
4
E625
10 µg/L
2,4-DIMETHYLPHENOL
<
10
µg/L
< 10
µg/L
4
E625
10 µg/L
4,6-D I N ITRO-O-CRESOL
2,4-DINITROPHENOL
<
50
µg/L
< 50
µg/L
4
E625
50 µg/L
2-NITROPHENOL
<
10
µg/L
< 10
µg/L
4
E625
10 µg/L
4-NITROPHENOL
<
10
µg/L
< 10
µgIL
4
E625
10 µg/L
PENTACHLOROPHENOL
<
30
µg/L
< 30
µg/L
4
E625
30 µg/L
PHENOL
<
10
µg/L
< 10
µg/L
4
E625
10 µg/L
2,4,6-
TRICHLOROPHENOL
<
10
µg/L
<10
µg/L
4
E625
10 µg/L
Use this space (or a separate sheet) to provide information on other acid -extractable compounds requested by the permit writer
BASE -NEUTRAL COMPOUNDS
ACENAPHTHENE
<
10
µg/L
<10
µg/L
4
E625
10 µg/L
ACENAPHTHYLENE
<
10
µg/L
<10
µg/L
4
E625
10 µg/L
ANTHRACENE
<
10
µg/L
<10
µg/L
4
E625
10 µg/L
BENZIDINE
<
50
µg/L
< 50
µg/L
3
E625
50 µg/L
BENZO(A)ANTHRACENE
<
10
µg/L
<10
µg/L
4
E625
10 µg/L
BENZO(A)PYRENE
<
10
µg/L
<10
µg/L
4
E625
10 µg/L
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 12 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
Outfall number. 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
MUMDL
Conc.
Units
Mass
Units
Co nc.
Units
Mass
Units
Number
of
Samples
3,4 BENZO-
FLUORANTHENE
< 10
µg/L
<10
µg/L
4
E625
10 pg/L
BENZO(GHI)PERYLENE
< 10
pg/L
<10
µg&L
4
E625
10 pg/L
BENZO(I)
FLUORANTHENE
< 10
pg/L
<10
pg/L
4
E625
10 µg/L
BIS (2-CHLOROETHOXY)
METHANE
<10
µg/L
<10
µg&L
4
E625
10 pg/L
BIS (2-CHLOROETHYL)-
ETHER
< 10
µg&L
<10
µg/L
4
E625
10 pg/L
BIS (2-CHLOROISO-
PROPYL) ETHER
< 10
pg/L
<10
µg/L
4
E625
10 pg/L
BIS (2-ETHYLHEXYL)
PHTHALATE
< 10
pg/L
<10
µg/L
4
E625
10 pg/L
4-BROMOPHENYL
PHENYL ETHER
< 10
pg/L
<10
pg/L
4
E625
10 µglL
BUTYL BENZYL
PHTHALATE
< 10
pg/L
<10
µg/L
4
E625
10 I,tg/L
2-CHLORO-
NAPHTHALENE
< 10
µg/L
<10
pg/L
4
E625
10 pg/L
4-CHLORPHENYL
PHENYL ETHER
< 10
pg/L
<10
µglL
4
E625
10 pg/L
CHRYSENE
< 10
pg/L
<10
pg/L
4
E625
10 µg/L
DI-N-BUTYL PHTHALATE
< 10
pg/L
<10
pg/L
4
E625
10 ,ctg/L
DI-N-OCTYL PHTHALATE
< 10
pg/L
<10
pg/L
4
E625
10 l.tg/L
DIBENZO(A,H)
ANTHRACENE
< 10
pg/L
<10
µg/L
4
E625
10 pg/L
1,2-DICHLOROBENZENE
< 10
µg/L
<10
pg/L
4
E625
10 pg/L
1,3-DICHLOROBENZENE
< 10
pg/L
<10
pg/L
4
E625
10 pg/L
1,4-DICHLOROBENZENE
< 10
pg/L
<10
pg/L
4
E625
10 pg/L
3,3-DICHLORO-
BENZIDINE
< 20
pg/L
<20
pg/L
4
E625
20 pg/L
DIETHYL PHTHALATE
< 10
pg/L
<10
µglL
4
E625
10 pg/L
DIMETHYL PHTHALATE
< 10
pg/L
<10
pg/L
4
E625
10 pg/L
2,4-DINITROTOLUENE
< 10
pg/L
<10
pg/L
4
E625
10 pg/L
2,6-DINITROTOLUENE
< 10
µg/L
<10
pg/L
4
E625
10 pg/L
1,2-DIPHENYL-
HYDRAZINE
< 10
pg/L
<10
pg/L
3
E625
10 µg/L
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 13 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
ML/MDL
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
Samples
FLUORANTHENE
< 10
pg/L
<10
p.glL
4
E625
10 /.rgIL
FLUORENE
< 10
/rgIL
<10
pg/L
4
E625
10 /rgIL
HEXACHLOROBENZENE
< 10
pg/L
<10
/rg/L
4
E625
10 pg/L
HEXACHLORO-
BUTADIENE
< 10
big/
<10
pg/L
4
E625
10 pg/L
HEXACHLOROCYCLO-
PENTADIENE
< 10
pg/L
<10
/r.g/L
4
E625
10 /rg/L
HEXACHLOROETHANE
< 10
/rg/L
<10
/rg/L
4
E625
10 pg/L
INDENO(1,2,3-CD)
PYRENE
< 10
/r.g/L
<10
pg/L
4
E625
10 pg/L
ISOPHORONE
< 10
/rgIL
<10
/rgIL
4
E625
10 pg/L
NAPHTHALENE
< 10
/rg/L
<10
pg/L
4
E625
10 /.rg/L
NITROBENZENE
< 10
/.cg/L
<10
/rg/L
4
E625
10/rg/L
N-NITROSODI-N-
PROPYLAMINE
< 20
/rg/L
<18
pg/L
4
E625
10 /rgIL
N-NITROSODI-
METHYLAMINE
< 10
/.rg/L
<10
/r.g/L
4
E625
10 frg/L
N-NITROSODI-
PHENYLAMINE
< 20
/rg/L
<20
/rgIL
4
E625
20 pg/L
PHENANTHRENE
< 10
/rg/L
<10
pg/L
4
E625
10 pg/L
PYRENE
< 10
/r.g/L
<10
/.rg/L
2
E625
10 /rgIL
1,2,4-
TRICHLOROBENZENE
< 20
/rg/L
<18
pg/L
4
E625
10 /rgIL
Use this space (or a separate sheet) to
provide information
on
other base -neutral compounds
requested
by the permit
writer
Use this space (or a separate sheet) to provide information on other pollutants (e.g , pesticides) requested by the permit writer
END OF PART D.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 14 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
SUPPLEMENTAL;AP_PLICATION,:INFORMATION
PART E., •TOXICITY`TESTINGDATA
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must include quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested in question E.4 for previously submitted information. If EPA methods were not used, report the reasons for using alternate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent
toxicity tests conducted in the past four and one-half years.
following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
► I chronic • acute
E.2. Individual Test Data. Complete the
column per test (where each species
constitutes a test). Copy this page if more than three tests are being reported.
Test number. 1 Test number. 2 Test number. 3
a. Test information.
Test Species & test method number
Ceriodaphnia dubia
Ceriodaphnia dubia
Ceriodaphnia dubia
Age at initiation of test
< 24 hrs
< 24 hrs
< 24 hrs
Outfall number
001
001
001
Dates sample collected
12/04/06 -12/07/06
03/12/07 — 03/15/07
06/11/07 — 06/04/07
Date test started
12/04/06
03/14/07
06/13/07
Duration
7 days
7 days
7 days
b. Give toxicity test methods followed.
Manual title
EPA 600-4-91-002
EPA 600-4-91-002
EPA 600-4-91-002
Edition number and year of publication
3rd, 1994
3rd, 1994
3rd, 1994
Page number(s)
144-195
144-195
144-195
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
X
X
X
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
X
X
X
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 15 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NCOO2O567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
Test number: 1 Test number: 2 Test number: 3
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
after dechlorination
after dechlorination
after dechlorination
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
X
X
X
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
X
X
X
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
Yates Mill Pond
Yates Mill Pond
Yates Mill Pond
Receiving water
i. Type of dilution water. If salt water, specify "natural" or type of artificial sea salts or brine used.
Fresh water
X
X
X
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
0.87
0.87
0.87
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH
6.93 — 7.07, yes
6.94 — 7.03, yes
7.83 — 7.95, yes
Salinity
Temperature
3.1 — 3.4 °C, yes
2.1 — 3.0 °C, yes
4.0 °C, yes
Ammonia
Dissolved oxygen
8.4 - 8.6, yes
8.1 - 8.6, yes
7.73 — 7.90, yes
I. Test Results.
Acute:
Percent survival in 100%
effluent
LC50
95% C.I.
%
%
%
Control percent survival
%
%
%
Other (describe)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 16 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
Chronic:
NOEC
%
IC2s
Control percent survival
%
%
Other (describe)
Pass
Pass
Pass
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Yes
Yes
Yes
Was reference toxicant test within
acceptable bounds?
Yes
Yes
Yes
What date was reference toxicant test
run (MM/DD/YYYY)?
12/01/2006
03/01 /2007
06/01/2007
Other (describe)
E.3. Toxicity Reduction Evaluation.
❑ Yes ❑ No
Is the treatment works involved in a Toxicity Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have
cause of toxicity, within the past four and one-half years, provide the dates
of the results.
Date submitted: / / (MM/DD/YYYY)
submitted biomonitoring test information, or information regarding the
the information was submitted to the permitting authority and a summary
Summary of results: (see instructions)
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
SUPPLEMENTAL APPLICATION INFORMATION
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 17 of 22

P
4
PART E. TOXICITY TESTING DATA
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must include quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested in question E.4 for previously submitted information. If EPA methods were not used, report the reasons for using alternate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent
toxicity tests conducted in the past four and one-half years.
following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
0 chronic ■ acute
E.2. Individual Test Data. Complete the
column per test (where each species
constitutes a test). Copy this page if more than three tests are being reported.
Test number. 4 Test number. Test number.
a. Test information.
Test Species & test method number
Ceriodaphnia dubia
Age at initiation of test
< 24 hrs
Outfall number
001
Dates sample collected
09/10/07 -09/13/07
Date test started
09/12/07
Duration
7 days
b. Give toxicity test methods followed.
Manual title
EPA 600-4-91-002
Edition number and year of publication
3`d, 1994
Page number(s)
144-195
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
X
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
X
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 15 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
Test number: 1 Test number: Test number:
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
after dechlorination
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
X
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
X
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
Yates Mill Pond
Receiving water
i. Type of dilution water. If salt water, specify "natural" or type of artificial sea salts or brine used.
Fresh water
X
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
0.87
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH
7.69 — 7.96, yes
Salinity
Temperature
2.0 — 2.4 °C, yes
Ammonia
Dissolved oxygen
7.12 — 7.69, yes
I. Test Results.
Acute:
Percent survival in 100%
effluent
%
%
%
LCso
95% C.I.
%
Control percent survival
%
%
%
Other (describe)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 16 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
Chronic:
NOEC
%
%
%
IC25
%
%
%
Control percent survival
%
%
Other (describe)
Pass
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Yes
Yes
Yes
Was reference toxicant test within
acceptable bounds?
Yes
Yes
Yes
What date was reference toxicant test
run (MM/DD/YYYY)?
09/01/2007
03/01/2007
06/01/2007
Other (describe)
E.3. Toxicity Reduction Evaluation.
❑ Yes 0 No
Is the treatment works involved in a Toxicity Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have submitted biomonitoring test information, or information regarding the
cause of toxicity, within the past four and one-half years, provide the dates the information was submitted to the permitting authority and a summary
of the results.
Date submitted: 09/30/06, 06/30/06, 03/31/06, 12/31/05, 09/30/05, 06/30/05, 03/31/05, 12/31/04, 09/30/04, 06/30/04,
03/31 /04 (MM/DD/YYYY)
Summary of results: (see instructions)
No Failed test results in this period
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 17 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
SUPPLEMENTAL APPLICATION INFORMATION
PART F.INDUSTRIAL USER DISCHARGES AND RCRA/CERCLA WASTES
All treatment works receiving discharges from significant industrial users or which receive RCRA,CERCLA,
complete part F.
GENERAL INFORMATION:
F.1. Pretreatment program. Does the treatment works have, or is subject to, an approved pretreatment program?
❑ Yes El No
F.2. Number of Significant Industrial Users (SlUs) and Categorical Industrial Users (ClUs). Provide the number
industrial users that discharge to the treatment works.
a. Number of non -categorical SlUs.
or other remedial wastes must
of each of the following types of
questions F.3 through F.8 and
b. Number of ClUs.
SIGNIFICANT INDUSTRIAL USER INFORMATION:
to the treatment works, copy
Supply the following information for each SIU. If more than one SIU discharges
provide the information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name:
Mailing Address:
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
F.5. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s):
Raw material(s):
F.6. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into
day (gpd) and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
the collection system in gallons per
into the collection system
b. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits ❑ Yes ❑ No
b. Categorical pretreatment standards ❑ Yes 0 No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 18 of 22

FACILITY NAME AND PERMIT NUMBER:
Elkin WTP, NC0020567
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin Pee Dee
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years? NIA
0 Yes ❑ No If yes, describe each episode.
RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL, OR DEDICATED PIPELINE:
F.9. RCRA Waste. Does the treatment works receive or has it in the past three years received RCRA hazardous waste by truck, rail or dedicated pipe?
0 Yes 0 No (go to F.12)
F.10. Waste transport Method by which RCRA waste is received (check all that apply):
❑ Truck 0 Rail ❑ Dedicated Pipe
F.11. Waste Description. Give EPA hazardous waste number and amount (volume or mass, specify units).
EPA Hazardous Waste Number Amount Units
CERCLA (SUPERFUND) WASTEWATER, RCRA REMEDIATIONICORRECTIVE ACTION .
WASTEWATER, AND OTHER REMEDIAL ACTIVITY WASTEWATER:
F.12. Remediation Waste. Does the treatment works currently (or has it been notified that it will) receive waste from remedial activities?
❑ Yes (complete F.13 through F.15.) 0 No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLAIRCRA/or other remedial waste originates (or is excepted to origniate in
the next five years).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
a. Is this waste treated (or will be treated) prior to entering the treatment works?
❑ Yes ❑ No
If yes, describe the treatment (provide information about the removal efficiency):
b. Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous ❑ Intermittent If intermittent, describe discharge schedule.
END OF PART F.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 19 of 22

,..'s \ „ .‘1:4‘
Exhibit 1
Town of Elkin
Wastewater Treatment Plant
Vicinity Map
+ +• 02-01-08, Ate- WWTP Vcnty_Map
4 i r�: •
Town of Elkin
Wastewater Treatment Plant
Legend
WWVfP
Sewer Pump Station
= a • Sewer Mains
TYPE
Force Main
Gravity Main
Hobbs, Upchurch
& Associates. P.A.
Consulting Engineers

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INFLUENT
YADKIN RIVER
MECHANICAL
SCREENING
GRAVITY EFFLUENT
DECHLORINATION
DRYING BEDS -
1
SLUDGE LOADING
STATION
LAND
APPLICATION
RECIRCULATION
PUMP
WAS
PUMPS
WAS
L_
INTERMEDIATE
PUMP STATION
EXISTING ELKIN WWTP
PROCESS FLOW DIAGRAM
WWTP
IMPROVEMENTS
p HOBIA IPCHI F/&A50X4T1$ PA
CAV3U.TAC MASERS
c i6 tOTIE hOR711 CABOLIVA 28204

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YADKIN RIVER
INFLUENT MECHANICAL
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3
WAS J
WAS
PUMPS
LAND
APPUCATION
SPUTTER BOX
INTERMEDIATE
PUMP STATION
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PROCESS FLOW DIAGRAM
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IMPROVEMENTS
H013B4 MUCH&ASS141ES PA
=SLUM MISERS
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