NC0021504_Permit Issuance_20140718

A�
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
Mayor Jimmy Blake
Town of Biscoe
P.O. Box 1228
Biscoe, NC 27209-1228
Dear Mayor Blake:
John E. Skvarla III
Secretary
July 18, 2014
Subject: Issuance of NPDES Permit NC0021604
Biscoe WWTP
Montgomery County
Class WW-3
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 October 15, 2007 (or as subsequently
amended).
2014.
This final permit includes one major change from the draft permit sent to you on April 23,
➢ Per the 2012 Mercury Total Maximum Daily Load (TMDL) approved by the U.S. EPA, you must
conduct one effluent analysis of Total Mercury using EPA Method 1631E. The analysis should
be conducted in the year 2018; analytical results shall be submitted with your next permit
renewal application. See Part I, Section A. (5) for details.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings
(6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this
decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal
requirements to obtain any other Federal, State, or Local governmental permit that may be required. If you
have any questions concerning this permit, please contact Charles Weaver at telephone number (919) 807-
6391.
Sincer ly'
Thomas A. Reeder, Directo%
Division of Water Resources
cc: Central Files
Fayetteville Regional Office
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 512 North Salisbury Street, Raleigh, North Carolina 27604
Phone: [phone] FAX [phone] / http://portal.ncdenr.org/web/wq
An Equal Opportunity/AffinnativeAction Employer-50% Recycled110'/o Post Consumer Paper

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Permit NCO021504
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
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,
Town of Biscoe
is hereby authorized to discharge wastewater from a facility located at the
Biscoe WWTP
NCSR 1556 west of Biscoe
Montgomery County
to receiving waters designated as .Hickory Branch in subbasin 03-07-15 of the
Yadkin -Pee Dee River Basin in accordance with effluent limits, monitoring
requirements, and other conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective September 1, 2014.
This permit and authorization to discharge shall expire at midnight on June 30, 2019.
Signed this day July 18, 2014
Y�ffias A. Reeder, Director
vision of Water Resources
By Authority of the Environmental Management Commission
1 of 7

Permit NCO021504
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 Biscoe is hereby authorized to:
1. Continue to operate an existing 0.60 MGD wastewater treatment plant consisting
of the following treatment units:
♦ Influent bar screen
♦ Dual aeration basins
♦ Dual -hopper clarifier with skimmer
♦ Sludge return line
♦ Gaseous chlorine disinfection
♦ Chlorine contact tank
♦ Gaseous dechlorination
♦ Sludge holding tank
♦ Sludge drying beds
The facility is located at the Biscoe WWTP on NCSR 1556 west of Biscoe in
Montgomery County.
2. Operate at 0.50 MGD until the average flow for any twelve (12) month period
exceeds 80% of the permitted flow (0.40 MGD), after which time the facility must
monitor in accordance with effluent limits and monitoring requirements specified
for 0.60 MGD.
3. Discharge from said treatment works at the location specified on the attached map
into Hickory Branch, currently classified C waters in the Yadkin -Pee Dee River
Basin.
2 of 7

Permit NCO021504
A. (1) EFFLUENT LIMITS AND MONITORING REQUIREMENTS (0.5 MGD)
During the period beginning on the effective date of this permit and lasting until the twelve-
month average flow exceeds 0.40 MGD or until expiration, the permittee is authorized to
discharge treated domestic wastewater from outfall 001. Such discharges shall be limited and
monitored' by the permittee as specified below:
PARAMETER
Parameter Description - PCS Code
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Unit of
Measure
Measurement
Frequency
Sample
Type
Sample
Location2
Flow - 50050
0.5
MGD
Continuous
Recorder
Influent or
Effluent
BOD, 5-Day (20 Deg. C)3 - 00310
29.0
43.5
mg/L
Weekly
Composite
Influent &
Effluent
Total Suspended Solids 3 - 00530
30.0
45.0
mg/L
Weekly
Composite
Influent &
Effluent
Ammonia Nitrogen (as N) - 00610
6.0
18.0
mg/L
Weekly
Composite
Effluent
Fecal Coliform - 31616
(geometric mean
200
400
#/100 ml
Weekly
Grab
Effluent
Total Residual Chlorine (TRC) 4 - 50060
17
Ng/L
Weekly
Grab
Effluent
Temperature, °Centigrade - 00010
deg. C
Weekly
Grab
Effluent,
U & D
Dissolved Oxygen - 00300
Daily average > 6.0
mg/L
Weekly
Grab
Effluent
Dissolved Oxygen - 00300
mg/L
Weekly
Grab
U & D
Total Phosphorus (as P) - 00665
mg/L
Quarterly
Composite
Effluent
Total Nitrogen (as N) - 00600
mg/L
Quarterly
Composite
Effluent
Chronic Toxicity (Cedodaphnia)5 -
TGP3B
Quarterly
Composite
Effluent
Specific Conductance - 00095
Nmhos/cm
Weekly
Grab
Effluent,
U & D
pH - 00400
> 6.0 and <9.0
standardunits
Weekly
Grab
Effluent
Total Mercury6 -COMER
pg/L
6
Grab
Effluent
Footnotes:
1. No later than 270 days from the effective date of this permit, the permittee shall begin submitting discharge
monitoring reports electronically using the Division's eDMR system [see A. (4)].
2. U: at least 100 feet upstream from the outfall. D: downstream at NCSR 1556 on White Oak Creek.
3. The monthly average effluent BODs and Total Suspended Solids concentrations shall not exceed 15% of the
respective monthly average influent value (85% removal).
4. The facility shall report all effluent TRC values reported by a NC certified laboratory including field certified.
However, effluent values < 50 ug/ L will be treated as zero for compliance purposes.
5. Chronic Toxicity (Ceriodaphnia) limit with testing in January, April, July, and October [see A. (3)].
6. The permittee shall collect one sample of total mercury during the term of this permit. See A. (5) for details.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
3 of 7

Permit NCO021504
A. (2) EFFLUENT LIMITS AND MONITORING REQUIREMENTS [0.6 MGD]
During the period beginning when the twelve-month average flow exceeds 0.40 MGD and lasting
until expiration, the permittee is authorized to discharge treated domestic wastewater from outfall
001. Such discharges shall be limited and monitored' by the permittee as specified below:
PARAMETER
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Weekly
Daily
Unit. of ,
Measurement
Sample
Sample
Parameter Description — PCS Code
Average
Average
Maximum
Measure
Fre uenc
Type
Location2
Flow - 50050
0.60
MGD
Continuous
Recorder
Influentor
BOD, 5-Day (20 Deg. C)3 - 00310
29.0
43.5
mg/L
3 / Week
Composite
Influent &
Effluent
Total Suspended Solids 3 - 00530
30.0
45.0
mg/L
3 / Week
Composite
Influent &
Effluent
Ammonia Nitrogen (as N) - 00610
6.0
18.0
mg/L
3 / Week
Composite
Effluent
Fecal Coliform - 31616
(geometric mean
200
400
#/100 ml
3 / Week
Grab
Effluent
Total Residual Chlorine (TRC) 4 - 50060
17
Ng/L
3 / Week.
Grab
Effluent
Temperature, °Centigrade - 00010
deg. C
3 / Week
Grab
Effluen
U & Dt,
Dissolved Oxygen - 00300
Daily average > 6.0
mg/L
3 / Week
Grab
Effluent
Dissolved Oxygen - 00300
mg/L
3 / Week
Grab
U & D
Total Phosphorus (as P) - 00665
mg/L
Quarterly
Composite
Effluent
Total Nitrogen (as N) - 00600
mg/L
Quarterly
Composite
Effluent
Chronic Toxicity (Cerrodaphnia)5 -
TGP36
Quarterly
Composite
Effluent
Specific Conductance - 00095
Nmhos/cm
3 / Week
Grab
Effluent,
U&D
pH - 00400
> 6.0 and < 9.0
standard
units
3 / Week
Grab
Effluent
Total Mercury6 - COMER
Ng/L
6
Grab
Effluent
Footnotes:
1. No later than 270 days from the effective date of this permit, the permittee shall begin submitting discharge
monitoring reports electronically using the Division's eDMR system [see A. (4)].
2. U: at least 100 feet upstream from the outfall. D: downstream at NCSR 1556 on White Oak Creek.
3. The monthly average effluent BODs and Total Suspended Solids concentrations shall not exceed 15% of the
respective monthly average influent value (85% removal).
4. The facility shall report all effluent TRC values reported by a NC certified laboratory including field certified.
However, effluent values < 50 µg/L will be treated as zero for compliance purposes.
5. Chronic Toxicity (Ceriodaphnia) limit with testing in January, April, July, and October [see A. (3)].
6. The permittee shall collect one sample of total mercury during the term of this permit. See A. (5) for details.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
4of7

Permit NCO021504
A. (3) 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 90%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures
outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised
December 2010, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent
Toxicity Test Procedure" (Revised- December 2010) or subsequent versions. The tests will be
performed during the months of January, April, July and October. These months signify
the first month of each three-month toxicity testing quarter assigned to the facility. 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 -December 2010) 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,
DWR Form AT-3 (original) is to be sent to the following address:
Attention: NC DENR / DWR / Water Sciences Section
Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Water 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 Water 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. Assessment of toxicity compliance is based
on the toxicity testing quarter, which is the three month time interval that begins on the first day of
the month in which toxicity testing is required by this permit and continues until the final day of the
third month.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Water Resources 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.
5 of 7

Permit NCO021504
A. (4) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
Proposed federal regulations require electronic submittal of all discharge monitoring reports
(DMRs) and specify that, if a state does not establish a system to receive such submittals,
then permittees must submit DMRs electronically to the Environmental Protection Agency
(EPA). The Division anticipates that these regulations will be adopted and is beginning
implementation.
NOTE: This special condition supplements or supersedes the following sections within Part
II of this permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting [Supersedes Section D. (2.) and Section E. (5.) (a)l
Beginning no later than 270 days from the effective date of this permit, the permittee
shall begin reporting discharge monitoring data electronically using the NC DWR's
Electronic Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each
month and submitted electronically using eDMR. The eDMR system allows permitted
facilities to enter monitoring data and submit DMRs electronically using the internet.
Until such time that the state's eDMR application is compliant with EPA's Cross -Media
Electronic Reporting Regulation (CROMERR), permittees will be required to submit all
discharge monitoring data to the state electronically using eDMR and will be required to
complete the eDMR submission by printing, signing, and submitting one signed original
and a copy of the computer -printed eDMR to the following address:
NC DENR / Division of Water Resources / Information Processing Unit
ATTENTION: Central Files / eDMR
1617 Mail Service Center
Raleigh, NC 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due
to the facility being physically located in an area where less than 10 percent of the
households have broadband access, then a temporary waiver from the NPDES electronic
reporting requirements may be granted and discharge monitoring data may be submitted
on paper DMR forms (MR 1, 1. 1, 2, 3) or alternative forms approved by the Director.
Duplicate signed copies shall be submitted to the mailing address above.
Requests for temporary waivers from the NPDES electronic reporting requirements must
be submitted in writing to the Division for written approval at least sixty (60) days prior
to the date the facility would be required under this permit to begin using eDMR.
Temporary waivers shall be valid for twelve (12) months and shall thereupon expire. At
such time, DMRs shall be submitted electronically to the Division unless the permittee
re -applies for and is granted a new temporary waiver by the Division.
6 of 7

Permit NCO021504
Information on eDMR and application for a temporary waiver from the NPDES electronic
reporting requirements is found on the following web page:
http://portal.ncdenr.org/web/wq/­`admin/bog/ipu/edmr
Regardless of the submission method, the first DMR is due on the last day of the month
following the issuance of the permit or in the case of a new facility, on the last day of the
month following the commencement of discharge.
2. Signatory Requirements [Supplements Section B. (11.) (b) and supersedes Section
B.(11.)(Q
All eDMRs submitted to the permit issuing authority shall be signed by a person
described in Part II, Section B. (11.) (a) or by a duly authorized representative of that
person as described in Part II, Section B. (11.)(b). A person, and not a position, must be
delegated signatory authority for eDMR reporting purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an
eDMR user account and login credentials to access the eDMR system. For more
information on North Carolina's eDMR system, registering for eDMR and obtaining an
eDMR user account, please visit the following web page:
http: / / portal. ncdenr. org%web /wq / admin / bog/ ipu/ edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system
shall make the following certification [40 CFR 122.221. NO OTHER STATEMENTS OF
CERTIFICATION WILL BE ACCEPTED:
'T 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 submitted 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 fines and
imprisonment for knowing violations. It
3. Records Retention [Supplements Section D. (6.)l
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of at least 3 years
from the date of the report. This period may be extended by request of the Director at
any time [40 CFR 122.41].
A. (5) TOTAL MERCURY MONITORING
The Permittee shall provide one effluent analysis for Total Mercury using EPA method
1631 E. Sampling should be conducted during 2018. Results of the analysis shall be
submitted with the permit renewal application due no later than January 1, 2019.
Results from any other effluent mercury analyses shall also be submitted with the permit
renewal application. Failure to submit the 1631 E results would be a permit violation.
7 of 7

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NCO021504 - Biscoe WWTP
Latitude: 35°20'45" Longitude: 79°47'47"
USGS Quad: Biscoe, N.C. Stream Class: C
Subbasin: 03-07-15
Receiving Stream: Hickory Branch
` Facility
l
Location
NoA& Montgomery County
Map not to scale

The Charlotte Observer Publishing Co
Charlotte, NC
North Carolina } ss Affidavit of Publication
Mecklenburg County }
Charlotte Observer
REFERENCE: 145583 NCDENR/DWQ/POINT SOURCE
0001012676 Public Notice North Carolina Environmental
Management Commission/NPDES Unit 1617
Mail Service Center Raleigh, NC 27699-1617
Before the undersigned, a Notary Public of said County and
State, duly authorized to administer oaths affirmations, etc.,
personally appeared, being duly sworn or affirmed according
to law, doth depose and say that he/she is a representative of
The Charlotte Observer Publishing Company, a corporation
organized and doing business under the laws of the State of
Delaware, and publishing a newspaper known as The
Charlotte Observer in the city of Charlotte, County of
Mecklenburg, and State of North Carolina and that as such
he/she is familiar with the books, records, files, and business
of said Corporation and by reference to the files of said
publication, the attached advertisement was inserted. The
following is correctly copied from the books and files of the
aforesaid Corporation and Publication.
PUBLISHED ON: 04/25/2014
AD SPACE: 47 LINES
FILED ON: 04/29/2014
PUBLIC NOTICE
North Cmollna Emlronma dal INmtegamerR
D .bo ahRfNPDES Unit
1617 Mail Seance Center
Raleigh, NC 2709..1617
Notice of Intent tolssue a NPDES
Wastewater Permlf
The NoM Carolina En0mmoremal
Management Dommlwion pmposes to
Wue a NPDES wasleweter discharge
permit to the ganda(s) Bated below. WrBten
comments mgarding the proposed domet
will be accepted untll 30 days after the
publish date of this nonce. The Director of
Me NC Division of Water Fbsaumes (DWR).
may hold ttppublic headnp should there be a
signlfcant tlagree of public Interest Please
mail comments and/or infmmegon requests
to DWfI at the some address. Interested
SSaabb riy oons Street SdAt 9the D NC WR ato 6raN.
4 w
Irlbimaoon on file. Additional information on
NPDES permits and this notice may be
found on our wabsite:
hBpp:/IportalrCdencoroweb/wq/wpf,s/nptl
es/ Podar, or by calling (919j BW fi390.
Town of Biscoe requesbtl nmwel of poermit
14=21504/Montgomery Cd�umy Facliity
dtschargec b Hickory B�.nWYadklnPee
Dee River Basin. GummgjY, BDD, ammonia
noogen. fecal cohlormI EasoNed oxygen,
and Intel residual chlotlne are water quality
Bmfted. I.owe's Home C mars requested
sewed of NPDES ppermit
NC00&512pflretlall Count' DislrlEUBon
Canter WWfP. Facillry dischergoe to an
unametl tdbulary to Rocky CreekyYadkiro ,•�
Pee Dee River gash. Curtendy, ammonia
nlbogan and fewl c."m are water'..Iily
-ad.
1012676
NAME: TITLE:
DATE:
In Testimol Whereof I have hereunto set my hand and affixed my seal, the day and year aforesaid.
Notary: zt� ��( O� e , My commission Expires:
APR 3 0 1014
My Comrnis(lontAxpires May 27, 2016

r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Water Quality Regional Operations Section
Pat McCrory Thomas A. Reeder
Governor Director
February 5, 2014
MEMORANDUM
John E. Skvada, III
Secretary
To: Charles Weaver
Point Source Branch
Through: Belinda Henson, Water Quality Regional Operations Section Supervisor eA�� Al- W&A�
Fayetteville Regional Office
From: Mark Brantley, Environmental Senior Specialist
Fayetteville Regional Office
SUBJECT: Minor NPDES Permit Renewal
Town of Biscoe
Biscoe WWTP
NPDES Permit No. NC 0021504
Montgomery County
Please find below, regional comments for the subject minor permit renewal.
FEB t P 70I4Do
• Applicant is not requesting modification of the facility or increasing flow at this time. They do want to keep their
Tiered permit status.
• Facility is planning a rehab/upgrade project as stated in ATCO21504A02 that was issued on January 7, 2014
• A rating sheet is not attached as no modifications were made to this facility during the previous permit cycle.
• A review of compliance data did not reveal any significant or repetitive violations.
• Based on the last NPDES Compliance Inspection, there are no outstanding repairs or modifications of the
treatment works necessary at this time. Although the regional office has asked that the digester be evaluated by
a professional engineer for structural integrity.
• No special conditions, limitations, or monitoring is suggested at this time.
• Based on the above information, the Fayetteville Regional Office recommends reissuance in keeping with the
current basin wide strategy.
Cc: Central Files
FRO Files
Fayetteville Regional Office
Location: 225 Green Street, Suite 414, Fayetteville, SIC, 28301-5095
Phone: [phone] \ Fax: [phone] \ Customer Service: 1-877-623-6748
Internet: http://portal.ncdenr.orW%yeb/wq
internet: www.newaterquality.org
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/ 10% Post Consumer Paper

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
This form must be completed by Permit Writers for all expedited permits which do not require
full Fact Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile
home parks, etc) that can be administratively renewed with minor changes, but can include
facilities with more complex issues (Special Conditions, 303(d) listed water, toxicity testing,
instream monitoring, compliance concerns).
Racie Information fnr Expedited Permit Renewals
Permit Writer/Date
Charles H. Weaver 4/21/2014
Permit Number
NCO021504
Facility Name
Biscoe WWTP
Basin Name/Sub-basin number
03-07-15
Receiving Stream
Hickory Branch
Stream Classification in Permit
C
Does permit need Daily Max NH3 limits?
No — already present
Does permit need TRC limits/language?
No — already resent
Does permit have toxicity testing?
Yes. One failure during the period 2010-2014.
All other tests passed.
Does permit have Special Conditions?
No
Does permit have instream monitoring?
Temperature, Dissolved Oxygen and Specific
Conductance
Is the stream impaired (on 303(d) list)?
For whatparameter?
No
Any obvious compliance concerns?
No. Single enforcement in 2013, none in
preceding 3 years. FRO staff report states that
"review of compliance data did not reveal any
significant or repetitive violations."
Any permit modifications since lastpermit?
None.
New expiration date
6/30/2019
Comments on Draft Permit
➢ Updated component list.
➢ Updated tox test requirements.
➢ Added eDMR requirements.
Most Commonly Used Expedited Language:
• 303(d) language for Draft/Final Cover Letters: "Please note that the receiving stream
is listed as an impaired waterbody on the North Carolina 303(d) Impaired Waters List.
Addressing impaired waters is a high priority with the Division, and instream data will
continue to be evaluated. If there is noncompliance with permitted effluent limits and
stream impairment can be attributed to your facility, then mitigative measures may be
required".
TRC language for Compliance Level for Cover Letters/Effluent Sheet Footnote:
"The facility shall report all effluent TRC values reported by a NC certified laboratory
including field certified. However, effluent values < 50 µg/L will be treated as zero for
compliance purposes."
This page has been printed on scrap paper to save money and reduce our program's environmentaL
impact Disregard any content on the back of this page.

Whole Effluent Toxicity Testing and Self Monitoring Summary
Belmont WWrP
NCO021181/001
County: Gaston
Region:
MRO
Basin:
CTB34
Feb May Aug Nov
SOC JOC:
'
Ceri7dPF
Begin:
2/1/2006
chr Jim: 8%
NonComp:
Single
7Q10:
9S.0
PF: 5.0
IWC:
8.0 Freq: Q
J
F
M
A
M
J I
A
S
O
N
D
2009
•
Pass
•
"
Pass
"
Pass
•
'
Pass
2010
•
Invalid
Pass
"
Pass
r •
Pass
'
Pass
`
2011
"
Pass
'
Pass
"
Fail
>32
>32
Pass
r
2012
"
Invalid
Pass
Pass
'
Pass
'
Pass
2013
•
Pass
•
•
Pass
" •
Pass
'
r
Pass
"
2014
•
Invalid
invalid
"
•
` '
•
r
'
Belvedere WFP Carolina Water
Service
NCO032221/001
County: Pender
Region:
WIRO
Basin:
CPF24
Jan Apr Jul Oct
SOC_JOC:
Mysd24PF
Begin:
7/1/2012
AcP/F Um: 90%Mys
NonComp:
70,10:
Tidal
PF:
IWC:
Freq: Q
J
F
M
A
M
J 1
A
S
O
N
D
2009
H
,
•
H
•
, H
'
»
H
2020
H
"
'
H
•
• H
'
H
2011
H
"
•
H
•
• H
H
'
2012
H
'
•
H
•
' H
'
H
^
'
2013
H
•
'
H
•
• H
r
H
'
2014
H
r
•
•
"
" •
•
'
^
'
Benson WWTP
NCO020389/001
County: Johnston
Region:
FRO
Basin:
NEU04
Jan Apr Jul Oct
SOC JOC:
Ceri7dPF
Begin:
9/1/2013
chr lim: 91MA
NonComp:
Single
7Q10:
0.0
PF: 1.9
IWC:
100 Freq: Q
J
F
M
A
M
1 J
A
S
O
N
D
2009
Pass
Pass
•
• Pass
•
Pass
^
'
2010
Pass
'
Pass
"
" Pass
»
Pass
'
2021
Pass
'
Pass
•
• Pass
Pass
»
2012
Pass
'
^
Pass
•
• Pass
»
r
Pass
•
"
2013
Pass
"
^
Pass
'
• Pass
•
•
Fail
31.8
54.1
2014
Pass
Biscoe WWTP
NCO021504/001
County: Montgomery
Region:
FRO
Basin:
YAD15
Jan Apr Jul Oct
SOCJOC:
Ceri7dPF
Begin:
5/1/2010
chr lim: 90%
NonComp:
Single
7Q10:
0.0
PF: 0.5
IWC:
100 Freq: Q
J
F
M
A
M
J J
A
5
O
N
D
2009
Fail
<45
97.5
Pass
'
Fail
>100
97.47
Pass
2010
Pass
•
•
Pass
•
" Pass
•
"
Pass
"
2011
Pass
•
Pass
•
" Pass
"
r
Pass
2012
Pass
"
•
Pass
"
" Pass
'
'
Fail
>100
>100
2013
Pass
`
"
Pass
•
" Pass
"
•
Pass
"
r
2014
Pass
•
•
'
•
• •
•
,
•
'
"
Page 10 of 139

TOWN OF BISCOB
110 Kest Main Street P.O. Box 1228 Biscoe, N.C. 27209 Phone [phone] FAX [phone] www. townof biseoe. com
December 20, 2013
Ms. Wren Thedford
NC DENR / DWR / NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re: NPDES Permit No. 0021504 Renewal
Town of Biscoe, North Carolina
WKD #20130213.00.CL
Dear Ms. Thedford:
Lea ;, P,� c- z U_ 3 i'; l`
31 �
DEC 30 2013
DEN "-IN C?f �ALIrY
POINT SOU,
Enclosed are one (1) original and two (2) copies of the NPDES Renewal Application and supporting
documents for the Town of Biscoe NPDES Permit NC0021504. We request the renewal of the two (2)
tiered flows at 0.5 and 0.6 mgd.
There have been no changes to the facility since the issuance of the last NPDES permit. The Town is
currently proceeding with a proposed plant upgrade to improve overall performance and reliability by
providing a new mechanically cleaned influent screen, additional aeration/mixing capacity, a new
secondary clarifier and provisions for emergency power. This work is currently in design and
permitting with construction expected to begin in 2014. The project is being partially funded by the
Clean Water Management Trust Fund (CWMTF Project 2012-549). The upgrades are not being
performed in response to any notice of violations (NOV) or imposed implementation schedule and will
not impact the current treatment capacity.
Please advise if there are any questions or additional information required.
Sincerely,
;?Jimmy Blake — Mayor
Town of Biscoe
Enclosures

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Town of Biscoe VWVfP, NPDES NCO021504 Renewal Yadkin Peedee
FORM
2A
NPDES
APPLICATION OVERVIEW
Form 2A has been developed in a modular format and consists of a "Basic Application Information" packet
and a "Supplemental Application Information" packet. The Basic Application Information packet is divided
into two parts. All applicants must complete Parts A and C. Applicants with a design flow greater than or
equal to 0.1 mgd must also complete Part B. Some applicants must also complete the Supplemental
Application Information packet. The following items explain which parts of Form 2A you must complete.
BASIC APPLICATION INFORMATION:
A Basic Application Information for all Applicants. All applicants must complete questions A.1 through A.8. A treatment works
that discharges effluent to surface waters of the United States must also answer questions A.9 through A.12.
B. Additional Application Information for Applicants with a Design Flow a 0.1 mgd. All treatment works that have design flows
greater than or equal to 0.1 million gallons per day must complete questions B.1 through B.6.
C. Certification. All applicants must complete Part C (Certification).
SUPPLEMENTAL APPLICATION INFORMATION:
D. Expanded Effluent Testing Data. A treatment works that discharges effluent to surface waters of the United States and meets
one or more of the following criteria must complete Part D (Expanded Effluent Testing Data):
1. Has a design flow rate greater than or equal to 1mgd,
2. Is required to have a pretreatment program (or has one in place), or
3. Is otherwise required by the permitting authority to provide the information.
E. Toxicity Testing Data. A treatment works that meets one or more of the following criteria must complete Part E (Toxicity Testing
Data):
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program (or has one in place), or
3. Is otherwise required by the permitting authority to submit results of toxicity testing.
F. Industrial User Discharges and RCRA/CERCLA Wastes. A treatment works that accepts process wastewater from any
significant industrial users (SIUs) or receives RCRA or CERCLA wastes must complete Part F (Industrial User Discharges
and RCRA/CERCLA Wastes). SIUs are defined as:
1. All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal Regulations (CFR) 403.6 and
40 CFR Chapter I, Subchapter N (see instructions); and
2. Any other industrial user that:
a. Discharges anaverage of 25,000 gallons per day or more of process wastewater to the treatment works
(with certain exclusions); or
b. Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic
or organic capacity of the treatment plant; or
C. Is designated as an SIU by the control authority.
G. Combined Sewer Systems. A treatment works that has a combined sewer system must complete Part G (Combined Sewer
Systems).
ALL APPLICANTS MUST COMPLETE PART C (CERTIFICATION)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 1 of 21

FACILITY NAME AND PERMIT NUMBER:
PERMITACTION REQUESTED:
RIVER BASIN:
Town of Biscoe WWTP, 0021504
Renewal
Yadkin Peedee
BASIC APPLICATION INFORMATION
PART A. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS:
All treatment works must complete questions A.1 through A.8 of this Basic Application Information Packet
A.1. Facility Information.
Facility Name Town of Biscoe Wastewater Treatment Plant
Mailing Address 110 West Main Street Post Office Box 26 --
Biscoe NC 27209 ---
Contact Person Sam Stewart --
Title Director of Public Utilities
Telephone Number (9191 428 "112
Facility Address Location west of Biscae off NC S R 1556 Montgomery County —
(not P.O. Box) N/A
A.2. Applicant Information. If the applicant is different from the above, provide the following:
Applicant Name --
Mailing Address --
Contact Person —
Title
Telephone Number L 1
Is the applicant the owner or operator (or both) of the treatment works?
N owner N operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
❑ facility N applicant
A.3. Existing Environmental Permits. Provide the permit number of any existing environmental permits that have been issued to the treatment works
(include staledssued permits).
NPDES NC 0021504 PSD
UIC Other
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
Biscoe 1,695 Separate Municipal
Total population sewed 1,695
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 2 of 21

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Town of Biscoe WWTP, NC 0021504
Renewal
Yadkin -Pee Dee
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 3 of 21

A.S. Indian Country.
a. Is the treatment works located in Indian Country?
❑ Yes X❑ 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 l Vh month of "this year" occurring no more than three months prior to this application submittal.
a. Design flow rate 0.60 mgd
Two Years Ago Last Year This Year
b. Annual average daily flow rate 0.197 0.204 0.228
C. Maximum daily flow rate 0.660 0.501 0.705
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 %
❑ Combined storm and sanitary sewer %
A.B. Discharges and Other Disposal Methods.
a. Does the treatment works discharge effluent to waters of the U.S.? 0 Yes ❑ 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
Ili. 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.? ❑ Yes
If yes, provide the following for each surface impoundment:
Location:
Annual average daily volume discharge to surface impoundment(s)
Is discharge ❑ continuous or ❑ intermittent?
C. Does the treatment works land -apply treated wastewater?
If yes, provide the following for each land application site:
d.
Location:
Number of acres:
Annual average daily volume applied to site:
Is land application ❑ continuous or ❑ intermittent?
Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works?
1
0
0
0
© No
mgd
❑ Yes 0 No
mgd
❑ Yes © No
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 4 of 21

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Town of Biscoe WWTP, NC 0021504, Renewal 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.8. through A.8.d above (e.g., underground percolation, well Injection): Yes No
If yes, provide the following for each disposal method:
Description of method (including location and size of s€te(s) if applicable):
Annual daily volume disposed by this method:
Is disposal through this method ❑ continuous
or ❑ intermittent?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 5 of 21

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Town of Biscoe WWTP, NC 0021504 1 Renewal I Yadkin -Pee Dee
WASTEWATER DISCHARGES:
If you answered "Yes" to question A.8.acomplete 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 1
b. LocationTown of Biscoe 27209
(City or taws, it applicable) (Zip Code)
Mon me NC
(County) (state)
350 20' 54" 79" 47' 35"
(Latitude) (Longitude)
C. Distance from shore (if applicable) WA ft
d. Depth below surface (if applicable) N/A tt•
e. Average daily flow rate 0.228 (2013) mgd
f. Does this outfall have either an intermittent or a periodic discharge? ❑ 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:
Months in which discharge occurs:
g. Is outfall equipped with a diffuser?
I A.10. Description of Receiving Waters.
a. Name of receiving water
b.
C.
d.
❑ Yes ® No
Hickory Branch — White Oak Creek
Name of watershed (if known)
United States Soil Conservation Service 14-digit watershed code (if known):
Name of State Management/River Basin (if known): Yadkin -Pee Dee
United States Geological Survey 8-digit hydrologic cataloging unit code (if known):
Critical low flow of receiving stream (if applicable)
mgd
unknown
unknown
acute zero cfs chronic zero cis
e. Total hardness of receiving stream at critical low flow (if applicable): N/A mgfl of CaCO3
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 6 of 21

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Town of Biscoe WWTP, NC 0021504
Renewal
Yadkin -Pee Dee
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
X❑ Primary ❑x Secondary
❑ Advanced ❑ Other. Describe:
b. Indicate the following removal rates (as applicable):
Design BOD5 removal or Design CBOD5 removal 95
Design SS removal 90
Design P removal NIA
Design N removal NIA %
Other Ammonia Nitrogen%rI %
C. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe:
chlorination (gas)
If disinfection is by chlorination is dechlorination used for this outfall? 0 Yes ❑ No
Does the treatment plant have post aeration? ❑x Yes ❑ No
A.12. Effluent Testing Information. All 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 QAIQC 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
Outfall number: #1
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
PARAMETER
Value
Units
Value
Units
Number of Samples
pH (Minimum)
6.03
S.U.
pH (Maximum)
7.60
SM.
Flow Rate
0.705
MGD
0.23
MGD
334(daily x 11 Mo
Temperature (Winter)
15
° C
11.4
° C
17 1/week x 4 Mo
Temperature (Summer)
27
° C
20.1
° C1
30 1lweek x 7 Mo
• For pH please report a minimum and a maximum daily value
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
DISCHARGE
ANALYTICAL
ML/MDL
POLLUTANT
METHOD
Number of
Conc.
Units
Cone.
Units
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
D5
16.8
M lL
4.8
M /L
47 11wk
SM5210 B
2.0 M IL
BIOCHEMICAL OXYGEN
�COB0D6
DEMAND (Report one)
FECAL COLIFORM
2600
#11001ml
4.2
#1100ml
47 11wk
SM9222 D
1 #1100 MIL
TOTAL SUSPENDED SOLIDS (TSS)
54
M /L
19.3
1 MIL
47 11wk
SM2540 D
2.5 M IL
END OF PART A.
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 8 7550-22. Page 7 of 21

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Town of Biscoe VVVVfP, NC 0021504,
Renewal
Yadkin-Pee Dee
BASIC APPLICATION INFORMATION
PART B. ADDITIONAL APPLICATION INFORMATION FOR APPLICANTS WITH A DESIGN FLOW GREATER THAN OR
EQUAL TO 0.1 MGD (100,000 gallons per day).
All applicants with a design flow rate >_ 0.1 mgd must answer questions B.1 through B.6. All others go to Panic (Certification).
BA. Inflow and Infiltration. Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration.
27,000 gpd
Briefly explain any steps underway or planned to minimize inflow and infiltration.
An I&I study was completed in 2013 by the Town of Biscoe and repairs are being planned when funding is available.
B.2. Topographic Map. Attach to this application a topographic map of the area extending at least one mile beyond facility property boundaries. This
map must show the outline of the facility and the following information. (You may submit more than one map if one map does not show the entire
area.)
a. The area surrounding the treatment plant, Including all unit processes. SEE ATTACHED TOPO & W WTP SITE MAP.
b. The major pipes or other structures through which wastewater enters the treatment works and the pipes or other structures through which
treated wastewater is discharged from the treatment plant. Include outfalls from bypass piping, if applicable.
c. Each well where wastewater from the treatment plant is injected underground. NOT APPLICABLE
d. Wells, springs; other surface water bodies, and drinking water wells that are: 1) within % mile of the property boundaries of the treatment
works, and 2) listed in public record or otherwise known to the applicant. NOT APPLICABLE
e. Any areas where the sewage sludge produced by the treatment works is stored, treated, or disposed. SHOWN ON SITE PLAN
I. If the treatment works receives waste that is classified as hazardous under the Resource Conservation and Recovery Act (RCRA) by truck, rail,
or special pipe, show on the map where the hazardous waste enters the treatment works and where it is treated, stored, and/or disposed.
B.3. Process Flow Diagram or Schematic. Provide a diagram showing the processes of the treatment plant, including all bypass piping and all
backup power sources or redunancy in the system. Also provide a water balance showing all treatment units, including disinfection (e.g.,
chlorination and dechlorination). The water balance must show daily average flow rates at Influent and discharge points and approximate daily flow
rates between treatment units Include a brief narrative descrintion of the diagram SEE ATTACHED FLOW DIAGRAM & NARATIVE
B.4. Operation/Maintenance Performed by Contractor(s).
Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works the responsibility of a
contractor ❑ Yes ❑X No
If yes, list the name, address, telephone number, and status of each contractor and describe the contractors responsibilities (attach additional
pages if necessary).
Name:
Mailing Address:
Telephone Number: ( 1
Responsibilities of Contractor.
B.S. 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.S.) SEE ATTACHED PROPOSED PROJECT SCHEDULE FOR PLANT IMPROVEMENTS
a. List the out(all number (assigned in question A.9) for each outfall that is covered by this implementation schedule.
Outfall #1 will be impacted by the improvements but is not subject to an implementation schedule.
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 8 of 21

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Town of Biscoe WWTP, NC 0021504
Renewal
Yadkin -Pee Dee
C. If the answer to B.5.b is Wes' briefly describe, including new mapmum daily inflow rate (0 applicable).
NIA
d. Provide dates Imposed by any compliance schedule or any actual dales of completion for the implementation steps listed below, as
applicable. For Improvements planned independently of local, Stale, or Federal agencies, indicate planned or actual completion dates, as
applicable. Indicate dales as accurately as possible.
Schedule (Planned) Actual Completion
Implementation Stage MM/DD/YYYY MM/DD/YYYY
- Begin Construction 06 / 23 / 2014
- End Construction 03/282015
-Begin Discharge On oin
-Attain Operational Level Ongoing
concerning other FederaliState requirements been obtained? ❑ Yes IN No
e. Have appropriate permits/dearances
Describe briefly: The proiect is not under a compliance order or implementation requirement The Authorization to Construct (ATC)
Application with supporting plans and specifications was submitted to DENR 12119/13
B.6. EFFLUENT TESTING DATA (GREATER THAN 0.1 MGD ONLY).
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 ouffall through which effluent is discharged. Do not Include Information
on combine 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 QAIQC 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 pollutant scans and must be no more than four and on -half years old.
Outfall Number: 1
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
DISCHARGE
ANALYTICAL
MUMDL
POLLUTANT
METHOD
Numberof
Conc.
Units
Conc.
Units
Samples
CONVENTIONAL AND NON CONVENTIONAL
COMPOUNDS
AMMONIA (as N)
12.3
Mg/L
3.0
MgIL
47
EPA 350.1
0.1 Mg/L
CHLORINE (TOTAL
17
UgIL
10
Ug/L
47
SM 4500-CLG
10 UgIL
RESIDUAL, TRC)
DISSOLVED OXYGEN
9.6
MgIL
7.4
MgIL
47
SM 4500-OG
0.5
TOTAL KJELDAHL
14.1
MgIL
9.4
MgIL
3
EPA 360.1
0.1
NITROGEN (TKN)
NITRATE PLUS NITRITE
16.7
MgIL
11.4
Mg/L
3
EPA 353.2
0.1
NITROGEN
OIL and GREASE
PHOSPHORUS (total)
3.9
MgfL
2.6
Mg/L
3
EPA 200.7
0.02 MgIL
TOTAL DISSOLVED SOLIDS
(TDS)
OTHER
END OF PART B.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Farm 3510-2A (Rev. 1.99). Replaces EPA fortes 7550-6 & 7550-22. Page 9 of 21

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
W
Town of Biscoe WTP, NC 0021504
Renewal
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:
❑x Basic Application Information packet Supplemental Application Information packet:
❑ Part D (Expanded Effluent Tesfing Data)
❑ Part E (Toxicity Testing: Biomonitoring Data)
❑ Part F (Industrial User Discharges and RCRAICERCLA Wastes)
❑ Part G (Combined Sewer Systems)
ALL APPLICANTS MUST COMPLETE THE FOLLOWING CERTIFICATION.
I certify under penally 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 property 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 Jimmy Blake. Mayor
Signature
Telephone number (9101428-4112
Dale signed
Upon request of the permitting authority, you must submit a y other in rmation 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 10 of 21

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TOWN OF BISCOE WWTP WITH
DISCHARGE TO HICKORY BRANCH
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TOWN OF BISCOE WWTP - NP[
USGS MAP - BISCOE QUANDRI
7.5 MINUTE SERIES
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N%wl< Biscoe WWTP W E 75 37.5 0 75 Feet
WDICKSON Site Map S
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To Landfill
Disposal
Influen
Bar
Screen
------------------- - - - - -
WAS
t
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Sludge Drying Beds
Sludge
Holding ---------
;
Tank
'
Decant
WAS
Aeration Basin No 1
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-- RAS------
---
RAS
Plant
Influent
Legend;
RAS Return Activated Sludge
WAS Waste Activated Sludge
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Prepared By: W.K. Dickson & Co., Inc.
Project No. 20130213.00.CL
Water
Chlorine Gas
Feed System
Return Sludge
Pumps
Sludge
Final
Clarifier Chlorine
Contact
Tank
----------------------
Emergency Clarifier Bypass
Water
1
Sulfur
Dioxide
Gas Feed
System
S02 Solution
Discharge to Hickory
Branch Creek
Q ave = 0.23 mgd
TOWN OF BISCOE
EXISTING WWTP FLOW SCHEMATIC
December 20, 2013

WWTP Flow Diagram Narrative Description
Town of Biscoe NPDES Permit NCO021504 Renewal
Existing Wastewater Treatment Plant Narrative:
The Town of Biscoe WWTP is an extended aeration activated sludge process. Flow from the
collection system enters the plant by gravity and flow through the following unit processes:
• Manually cleaned bar screen
• Two (2), 654,000 gallon aeration basins with 2 ea 15 horsepower floating aerators per basin
• One (1), 50' diameter secondary clarifier
• One (1), chlorine contact chamber with provisions for chlorination and dechlorination
Supporting processes include:
• Dual chlorine gas, flow proportional chlorinators with one unit serving as a redundant unit
• Dual sulfur dioxide gas, flow proportional dechlorinators with one unit serving as
redundant unit
• Sludge holding tank
• Sand drying beds
• Return activated sludge pumps, 2 with one unit as a redundant unit
• Laboratory/office building
Proposed WWTP Upgrade:
The Town of Biscoe has recently received a Clean Water Management Trust Fund grant to assist
with a proposed WWTP upgrade. Design and associated permitting for construction are now in
progress with an anticipated construction completion in 2014. The proposed upgrade is not in
response to regulatory actions and no change in the permitted flow is being requested. The
proposed upgrade is to provide the following plant improvements for improved treatment
reliability:
• Installation of a new mechanically cleaned bar screen with by-pass manually cleaned
screen.
• Addition of valves in influent piping to aeration basins to permit flow isolation between
basins.
• Installation of additional floating aerators in Aeration Basin #1 permitting treatment in one
basin with second basin in reserve.
• New clarifier flow splitter structure allowing control of aeration basin effluent flow to
secondary clarifiers.
• New secondary clarifier providing a redundant unit to the existing 40 year old unit.
• New RAS/WAS pump station supporting the new secondary clarifier.

PROJECT: PROPOSED VVWrP UPGRADE SCHEDULE
CLIENT: Town of Blscoe
PREPARED BY: Bob Froneberger, P.E.
DATE: 12120/2013
0
Advertise,
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Note: Authorization to Construct (ATC( application was submitted to NCDENR on December 20, 2013 with Plans and Specifications for the proposed upgrade.

Town of Biscoe Sludge Management Plan
Activated sludge from the extended aeration activated sludge process is periodically
wasted to a 55,200 gallon sludge holding tank for storage by diversion of flow from the
plant return activated sludge (RAS) force main utilizing the RAS pumps for wasting. The
waste activated sludge (WAS) is periodically transferred to the sand drying beds (4 each
800 SF / each or 3200 SF total).
When the WAS achieves a sufficient dryness on the drying beds, it is removed by the
Town and disposed of in the Montgomery County Sanitary Landfill approximately 2 or 3
times a year.