NC0021024_PERMIT ISSUANCE_20130522

NPDES DOCUWENT SCANNING COVER SHEET
NPDES Permit:
NC0021024
Roxboro WWTP
Document Type:("Permit
Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Speculative Limits
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date:
May 22, 2013
Thies document is Printed on reuse PaPer. - igr►ore saay
content on the reverse side

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Pat McCrory Charles Wakild, P. E.
Governor Director
May 22, 2013
Thomas S. Warren, Jr., Assistant City Manager
City of Roxboro
P.O. Box 128
Roxboro, North Carolina 27573
Dear Mr. Warren:
John E. Skvarla, III
Secretary
Subject: Issuance of NPDES Permit
NCO021024
Roxboro WWTP
Person County
Facility Class IV
Division personnel have reviewed and approved your application for renewal of the subject
NPDES 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).
This Final Permit includes the following changes from your previous permit:
• The priority pollutant scan requirement was changed from amoral to three times during the
current permit term, consistent with Division guidance for major municipal wastewater
treatment facilities. Please note that this testing requires a low-level analysis method for mercury
(EPA Method 1631E).
• A footnote was added to the limit for TRC such that the Division shall consider all effluent TRC
values reported below 50 µg/L to be in compliance with the permit. However, you must 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/L.
• Due to the lack of reasonable potential to cause exceedances of water quality standards, limits
and monitoring requirements for total cyanide and total nickel were eliminated.
• The new dechlorination system was added to the treatment components list on the supplement to
permit cover sheet.
• In accordance with Division guidelines following the approval of a Statewide TMDL for mercury, a
special condition regarding a mercury minimization plan (MMP) was added. Guidelines for MMP
development have been placed on the Division website following a stakeholder review process.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: www.ncwatemualilv.org
No thCarohna
Naturally
An Equal Oppodunito Affrmalive Action Employer

The MMP must be developed within 180 days Additionally, after review of sample results over
the past five years, limits and monitoring requirements for total mercury were eliminated.
Data analyses indicated that total copper and total zinc exhibited a reasonable potential to cause
exceedances of water quality standards. Monitoring for these parameters will be changed to
quarterly in accordance with Division guidelines for action -level parameters. This monitoring
must be conducted in conjunction with the Quarterly toxicity test.
Based on comments received from US EPA, the following additional changes were incorporated into this
Final Permit:
• Effluent limitations for ammonia were revised downward to reflect the limited dilution available
in the receiving stream, Marlowe Creek. Per your request, a compliance schedule to provide for
consultant contracting, design, funding, bidding, and construction has also been added. The new
limits will become effective September 1, 2019.
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 other permits which may be required by the Division of Water Quality or
permits required by the Division of Land Resources, the Coastal Area Management Act or any other
Federal or Local governmental permit that maybe required. If you have any questions concerning this
permit, please contact Tom Belnick at telephone number [phone].
Sincerely,
dom
&Charles Wakild P.E.
Hardcopy:
Central Files
NPDES Files
Raleigh Regional Office / Surface Water Protection Section
E-Copy: /
EPA Region 4/Permit, Fact Sheet ✓
ESS/Aquatic Toxicology Unit ✓/

Permit NCO021024
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
NPDES 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,
City of Roxboro
is hereby authorized to discharge wastewater from outfalls located at the
Roxboro Wastewater Treatment Plant
902 Cavel-Chub Lake Road, Roxboro
Person County
to receiving waters designated as the Marlowe Creek within the Roanoke River Basin in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, II, and IV hereof.
This permit shall become effective July 1, 2013.
This permit and authorization to discharge shall expire at midnight on May 31, 2017.
Signed this day: May 22, 2013
dartles Wakild, P. E., Director
r Division of Water Quality
VVVV By Authority of the Environmental Management Commission

Permit NC0021024.,
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this 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 described herein.
City of Roxboro
is hereby authorized:
to continue discharging 5.0 MGD of domestic and industrial wastewater from the existing
wastewater treatment facility consisting of a Grade IV activated sludge wastewater treatment
facilities utilizing
• a septic tank unloading facility
• two bar screens
• two grit removal devices
• two aeration basins (3 MG each)
• three secondary clarifiers
• a disinfection system (sodium hypochlorite) with two contact chambers
• a calcium thiosulfate dechlorination system
• two aerobic digesters
• three sludge drying beds.
located at the Roxboro Wastewater Treatment Plant, 902 Cavel-Chub Lake Road, Roxboro,
Person County, and
2. to discharge from said treatment works through Outfall 001 at a specified location (see
attached map) into Marlowe Creek, a waterbody classified as C waters within the Roanoke
River Basin.

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City of
Roxboro
Wastewater Treatment Plant
Latitude: 36°2641" N
StateGrid/Quad: B23NW/Roxboro
Longitude: 78058' 47" W
Permitted Fimv: 5.0 NIGD
Receiving Stream: Marlowe Creek
- Drainage Basin: Roanoke River Basin
Stream Class: C
8-Digit IIUC: 03010104
Facility X.
Location
not to scale
NOYtl2 NPDES Permit NCO021024
Person Count

Permit NCO021024
A (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the permittee
is authorized to discharge through Outfall 001. Such discharges shall be limited and monitored by the
permittee as specified below:
(" r " SFARAMETERS ' "-9
t 1t'Y
, s,i
�r
'S' jEFFLUENTdLIMITS?
�aTMONITORINGIREQUIRE MENTSi
F jMon"thlynT
v'eragq ,
( -WeeRljr F
PAverage .
s aDailr., ,
- M �
CMeasurements
f 'jFrepuencY,
( Sample ?
TYPe -
F Sample i
'Loca4ion_
i ,
Flow
5.0 MGD
Continuous
Recording
I or E
BOD, 5 day, 20° C 2 (April 1 -
October 31
16.0 mg/L
24.0 mg/L
Daily
Composite
1, E
BOD, 5 day, 20°C 2 (Nov. 1 -
March 31
20.0 mg/L
30.0 mg/L
Daily
Composite
I, E
Total Suspended Solids (TSS) 2
30.0 mg/L
45.0 mg/L
Daily
Composite
I, E
NH3 as N (April 1 -October 31)3
5.0 mg/L
15.0 mg/L
Daily
Composite
E
NH3 as N (Nov. 1 - March 31)3
13.0 mg/L
35.0 mg/L
Daily
Composite
E
Fecal Coliform(geometric mean
200/100 mL
400/100 mL
Daily
Grab
E
Total Residual Chlorine (TRC) 4
17 µg/L
Daily
Grab
E
Dissolved Oxygen 4
Daily
Grab
E
Temperature °C
Daily
Grab
E
H 6
Daily
Grab
E
Total Nitrogen
Monthly
Composite
E
Total Phosphorus
Monthly
Composite
E
Oil and Grease
30 mg/L
Weekly
Grab
E
Total Copper 7
Quarterly
Composite
E
Total Zinc 7
Quarterly
Composite
E
Chronic Toxicity 7
Quarterly
Composite
E
Conductivity
Variable 8
Grab
U, D
Temperature, °C
Variable 8
Grab
U, D
Dissolved Oxygen
Variable 8
Grab
U, D
Effluent Pollutant Scan
Monitor and Report
Footnote 9
Footnote 9
E
Footnotes:
1. Sample Locations: E - Effluent; I - Influent; U - Upstream at NCSR 1351; D - Downstream at NCSR 1322.
2. The monthly average effluent BOD5 and TSS concentrations shall not exceed 15% of respective influent value
(i.e., 85% removal is required).
3. Effective 9/1/2019, ammonia limits shall be as follows: Summer (1.0 mg/I Monthly Average, 3.0 mg/I Weekly
Average) and Winter (1.8 mg/I Monthly Average, 5.4 mg/l Weekly Average).
4. The Division shall consider all effluent TRC values reported below 50 pg/L 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 pg/L.
5. Daily average dissolved oxygen effluent concentration shall not fall below 5.0 mg/L.
6. Effluent pH shall not fall below 6.0 nor exceed 9.0 standard units.
7. Chronic Toxicity (Ceriodaphnia) at 90 %, quarterly during March, June, September, and December, [see A (2)].
Quarterly sampling for copper and zinc will be done concurrently with toxicity test sampling.
8. Variable: instream samples shall be collected upstream and downstream 3/week during the summer months of
June, July, August, and September; and shall be collected weekly during the rest of the year.
9. The permittee shall perform three effluent pollutant scans during the term of this permit [see A (3)].
Effluent shall contain no floating solids or foam visible in other than trace amounts.

Permit NCO021024
A (2) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 90%. The permittee shall perform at a minimum, quarterly
monitoring using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure,"
revised February1998, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test
Procedure" (revised -February 1998) or subsequent versions. The tests will be performed during the months of March,
June, September, and December. Effluent sampling for this testing shall be performed at the NPDES permitted final
effluent discharge below all treatment processes.
If the test procedure, performed as the first test of any single quarter, results in a failure or ChV below the permit limit,
then multiple -concentration testing shall be performed at a minimum, in each of the two following months, as
described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure' (revised -February 1998) or
subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that does
have a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection
methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic
Whole Effluent Toxicity Test Procedure' (revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring
Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results
and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the following address:
Environmental Sciences Section
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed aquatic toxicity test forms shall be filed with the Environmental Sciences 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.
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 NCO021024
A (3) EFFLUENT POLLUTANT SCAN
The permittee shall perform a total of three (3) effluent pollutant scans for all parameters listed below. One scan must
be performed in each of the following years: 2013, 2014, and 20151il 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 should be collected with one quarterly toxicity test each year,
and must represent seasonal variation (i.e., do not sample in the same quarter every year). Unless otherwise
indicated, metals shall be analyzed as "total recoverable."
Ammonia (as N) Trans-1,2-dichloroethylene Bis (2-chloroethyl) 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-chlorophenyl phenyl ether
Total dissolved solids
Methylene chloride
Chrysene
Hardness
1,1,2,2-tetrachloroethane
Di-n-butyl phthalate
Antimony
Tetrachloroethylene
Di-n-octyl phthalate
Arsenic
Toluene
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 (EPA Method 1631 E)
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 organic compounds:
Pentachlorophenol
Hexachlorocyclo-pentadiene
Acrolein
Phenol
Hexachloroethane
Acrylonitrile
2,4,6-trichlorophenol
I ndeno(1,2, 3-cd) pyrene
Benzene
_Base -neutral compounds:
Isophorone
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
3A benzofluoranthene
Pyrene
Dichlorobromomethane
Benzo(ghi)perylene
1,2,4-trichlorobenzene
1,1-dichloroethane
Benzo(k)fluoranthene
1,2-dichloroethane
Bis (2-chloroethoxy) methane
Reporting: Test results shall be reported on DWQ Form -A MR-PPA1 (or in a form approved by the Director) by
December 31't of each designated sampling year. The report shall be submitted to the following address: NC DENR /
DWQ / Central Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617.

Permit NC0021024
A (4) MERCURY MINIMIZATION PLAN (MMP)
The permittee shall develop and implement a mercury minimization plan during this permit term. The MMP
shall be developed within 180 days of the NPDES Permit Effective Date, and shall beavailable for
inspection on -site. A sample MMP was developed through a stakeholder review process and has been
placed on the Division website for guidance (http://portal.ncdenr.org/web/wq/swp/ps/npdes, under Model
Mercury Minimization Plan). The MMP should place emphasis on identification of mercury contributors and
goals for reduction. Results shall be summarized and submitted with the next permit renewal.

NPDES Permit Standard Conditions
Page 1 of 18
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
Section A. Definitions
2/Month
Samples are collected twice per month with at least ten calendar days between sampling events. These samples shall be
representative of the wastewater discharged during the sample period.
3/Week
Samples are collected three times per week on three separate calendar days. These samples shall be representative of
the wastewater discharged during the sample period.
Act or "the Act"
The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as amended, 33 USC 1251, et.
seq.
Annual Average
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal
coliform, the geometric mean of such discharges.
Arithmetic Mean
The summation of the individual values divided by the number of individual values.
Bypass
The known diversion of waste streams from any portion of a treatment facility including the collection system, which is
not a designed or established or operating mode for the facility.
Calendar Day
The period from midnight of one day until midnight of the next day. However, for purposes of this permit, any
consecutive 24-hour period that reasonably represents the calendar day may be used for sampling.
Calendar Week
The period from Sunday through the following Saturday.
Calendar Quarter
One of the following distinct periods: January through March, April through June, July through September, and
October through December.
Composite Sample
A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 mL in
such a manner as to result in a total sample representative of the wastewater discharge during the sample period. The
Director may designate the most appropriate method (specific number and size of aliquots necessary, the time interval
between grab samples, etc.) on a case -by -case basis. Samples may be collected manually or automatically. Composite
samples may be obtained by the following methods:
(1) Continuous: a single, continuous sample collected over a 24-hour period proportional to the rate of flow.
(2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour period
of discharge and combined proportional to the rate of flow measured at the time of individual sample
collection, or
(3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period with
the time intervals between samples determined by a preset number of gallons passing the sampling point. Flow
measurement between sample intervals shall be determined by use of a flow recorder and totalizer, and the
preset gallon interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at
the treatment system, or
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NPDES Permit Standard Conditions
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(4) Constant time/constant volume: a series of grab samples of equal volume collected over a 24-hour period at a
constant time interval. Use of this method requires prior approval by the Director. This method may only be
used in situations where effluent flow rates vary less than 15 percent. The following restrictions also apply:
➢ Influent and effluent grab samples shall be of equal size and of no less than 100 milliliters
➢ Influent samples shall not be collected more than once per hour.
➢ Permittees with wastewater treatment systems whose detention time < 24 hours shall collect effluent grab
samples at intervals of no greater than 20 minutes apart during any 24-hour period.
➢ Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect effluent
grab samples at least every six hours; there must be a minimum of four samples during a 24-hour sampling
period.
Continuous flow measurement
Flow monitoring that occurs without interruption throughout the operating hours of the facility. Flow shall be
monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance
activities on the flow device.
Daily Discharge
The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the
calendar day for purposes of sampling. For pollutants measured in units of mass, the "daily discharge" is calculated as
the total mass of the pollutant discharged over the day. For pollutants expressed in other units of measurement, the
"daily discharge" is calculated as the average measurement of the pollutant over the day. (40 CFR 122.2; see also
"Composite Sample," above.)
Daily Maximum
The highest "daily discharge" during the calendar month.
Daily SaMpling
Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in the
permit. Sampling shall be conducted on weekdays except where holidays or other disruptions of normal operations
prevent weekday sampling. If sampling is required for all seven days of the week for any permit parameter(s), that
requirement will be so noted on the Effluent Limitations and Monitoring Page(s).
DWQ or "the Division"
The Division of Water Quality, Department of Environment and Natural Resources.
Effluent
Wastewater discharged following all treatment processes from a water pollution control facility or other point source
whether treated or untreated.
EMC
The North Carolina Environmental Management Commission
EPA
The United States Environmental Protection Agency
Facility Closure
Cessation of all activities that require coverage under this NPDES permit. Completion of facility closure will allow this
permit to be rescinded.
Geometric Mean
The Nth root of the product of the individual values where N = the number of individual values. For purposes of
calculating the geometric mean, values of "0" (or "< [detection level]") shall be considered = 1.
Grab Sample
Individual samples of at least 100 mL collected over a period of time not exceeding 15 minutes. Grab samples can be
collected manually. Grab samples must be representative of the discharge (or the receiving stream, for instream
samples).
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NPDES Permit Standard Conditions
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Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CWA.
Instantaneous flow measurement
The flow measured during the minimum time required for the flow measuring device or method to produce a result in
that instance. To the extent practical, instantaneous flow measurements coincide with the collection of any grab
samples required for the same sampling period so that together the samples and flow are representative of the discharge
during that sampling period.
Monthly Average (concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month. In the case of fecal
coliform or other bacterial parameters or indicators, the geometric mean of such discharges.
Permit Issuing Authority
The Director of the Division of Water Quality.
Quarterly Average (concentration limit)
The arithmetic mean of all samples taken over a calendar quarter.
Severe prope . damage
Substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or
substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a
bypass. Severe property damage excludes economic loss caused by delays in production.
Toxic Pollutant:
Any pollutant listed as toxic under Section 307(a)(1) of the CWA.
Upset
An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with
permit effluent limitations and/or monitoring requirements. An upset does not include noncompliance caused by
operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive
maintenance, or careless or improper operation.
Weekly Average (concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal
coliform or other bacterial parameters or indicators, the geometric mean of such discharges.
Section B. General Conditions
1. Duty to Comply_
The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of
the CWA and is grounds for enforcement action; for permit termination, revocation and reissuance, or
modification; or denial of a permit renewal application [40 CFR 122.41].
a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a) of the
CWA for toxic pollutants and with standards for sewage sludge use or disposal established under section
405(d) of the CWA within the time provided in the regulations that establish these standards or prohibitions or
standards for sewage sludge use or disposal, even if the permit has not yet been modified to incorporate the
requirement.
b. The CWA provides that any person who violates section[s] 301, 302, 306, 307, 308, 318 or 405 of the Act, or
any permit condition or limitation implementing any such sections in a permit issued under section 402, or any
requirement imposed in a pretreatment program approved under sections 402(a)(3) or 402(b)(8) of the Act, is
subject to a civil penalty not to exceed $37,500 per day for each violation. [33 USC 1319(d) and 40 CFR
122.41(a)(2)]
c. The CWA provides that any person who negligently violates sections 301, 302, 306, 307, 308, 318, or 405 of
the Act, or any condition or limitation implementing any of such sections in a permit issued under section 402
of the Act, or any requirement imposed in a pretreatment program approved under section 402(a)(3) or
402(b)(8) of the Act, is subject to criminal penalties of $2,500 to $25,000 per day of violation, or
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NPDES Permit Standard Conditions
Page 4 of 18
imprisonment of not more than 1 year, or both. In the case of a second or subsequent conviction for a negligent
violation, a person shall be subject to criminal penalties of not more than $50,000 per day of violation, or by
imprisonment of not more than 2 years, or both. [33 USC 1319(c)(1) and 40 CFR 122.41(a)(2)]
d. Any person who knowingly violates such sections, or such conditions or limitations is subject to criminal
penalties of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. In the
case of a second or subsequent conviction for a knowing violation, a person shall be subject to criminal
penalties of not more than $100,000 per day of violation, or imprisonment of not more than 6 years, or both.
[33 USC 1319(c)(2) and 40 CFR 122.41(a)(2)]
e. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act, or any permit
condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, and
who knows at that time that he thereby places another person in imminent danger of death or serious bodily
injury, shall, upon conviction, be subject to a fine of not more than $250,000 or imprisonment of not more than
15 years, or both. In the case of a second or subsequent conviction for a knowing endangerment violation, a
person shall be subject to a fine of not more than $500,000 or by imprisonment of not more than 30 years, or
both. An organization, as defined in section 309(c)(3)(B)(iii) of the CWA, shall, upon conviction of violating
the imminent danger provision, be subject to a fine of not more than $1,000,000 and can be fined up to
$2,000,000 for second or subsequent convictions. [40 CFR 122.41(a)(2)]
f. Under state law, a civil penalty of not more than $25,000 per violation may be assessed against any person
who violates or fails to act in accordance with the terms, conditions, or requirements of a permit. [North
Carolina General Statutes § 143-215.6A]
g. Any person may be assessed an administrative penalty by the Administrator for violating section 301, 302,
306, 307, 308, 318 or 405 of this Act, or any permit condition or limitation implementing any of such sections
in a permit issued under section 402 of this Act. Administrative penalties for Class I violations are not to
exceed $16,000 per violation, with the maximum amount of any Class I penalty assessed not to exceed
$37,500. Penalties for Class II violations are not to exceed $16,000 per day for each day during which the
violation continues, with the maximum amount of any Class II penalty not to exceed $177,500. [33 USC
1319(g)(2) and 40 CFR 122.41(a)(3)]
2. Duty to Mitigate
The Permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in
violation of this permit with a reasonable likelihood of adversely affecting human health or the environment [40
CFR 122.41(d)].
3. Civil and Criminal Liability
Except as provided in permit conditions on 'Bypassing" (Part II.C.4), "Upsets" (Part II.C.S) and "Power Failures"
(Part II.C.7), nothing in this permit shall be construed to relieve the Permittee from any responsibilities, liabilities,
or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act, 33 USC
1319. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the
responsibility for effective compliance may be temporarily suspended.
4. Oil and Hazardous Substance Liability
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee
from any responsibilities, liabilities, or penalties to which the Permittee is or may be subject to under NCGS 143-
215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the Permittee is responsible for
consequential damages, such as fish kills, even though the responsibility for effective compliance may be
temporarily suspended.
5. Property Rights
The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive
privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any
infringement of Federal, State or local laws or regulations [40 CFR 122.41(g)].
6. Onshore or Offshore Construction
This permit does not authorize or approve the construction of any onshore or offshore physical structures or
facilities or the undertaking of any work in any navigable waters.
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7. Severability
The provisions of this permit are severable. If any provision of this permit, or the application of any provision of
this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the
remainder of this permit, shall not be affected thereby [NCGS 15013-23].
8. Duty to Provide Information
The Permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the
Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing, or
terminating this permit or to determine compliance with this permit. The Permittee shall also furnish to the Permit
Issuing Authority upon request, copies of records required by this permit [40 CFR 122.41(h)].
9. Duty to Reapply
If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the
Permittee must apply for and obtain a new permit [40 CFR 122.41(b)].
10. Expiration of Permit
The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to
discharge beyond the expiration date, the Permittee shall submit such information, forms, and fees as are required
by the agency authorized to issue permits no later than 180 days prior to the expiration date unless permission for a
later date has been granted by the Director. (The Director shall not grant permission for applications to be
submitted later than the expiration date of the existing permit.) [40 CFR 122.21(d)] Any Permittee that has not
requested renewal at least 180 days prior to expiration, or any Permittee that does not have a permit after the
expiration and has not requested renewal at least 180 days prior to expiration, will subject the Permittee to
enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq.
11. Signatory Requirements
All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified [40
CFR 122.41(k)].
a. All permit applications shall be signed as follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible
corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in charge
of a principal business function, or any other person who performs similar policy or decision making
functions for the corporation, or (b) the manager of one or more manufacturing, production, or operating
facilities, provided, the manager is authorized to make management decisions which govern the operation
of the regulated facility including having the explicit or implicit duty of making major capital investment
recommendations, and initiating and directing other comprehensive measures to assure long term
environmental compliance with environmental laws and regulations; the manager can ensure that the
necessary systems are established or actions taken to gather complete and accurate information for permit
application requirements; and where authority to sign documents has been assigned or delegated to the
manager in accordance with corporate procedures .
(2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or
ranking elected official [40 CFR 122.22].
b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be
signed by a person described in paragraph a. above or by a duly authorized representative of that person. A
person is a duly authorized representative only if:
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having responsibility for the overall operation
of the regulated facility or activity, such as the position of plant manager, operator of a well or well field,
superintendent, a position of equivalent responsibility, or an individual or position having overall
responsibility for environmental matters for the company. (A duly authorized representative may thus be
either a named individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Permit Issuing Authority [40 CFR 122.22]
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c. Changes to authorization: If an authorization under paragraph (b) of this section is no longer accurate because
a different individual or position has responsibility for the overall operation of the facility, a new authorization
satisfying the requirements of paragraph (b) of this section must be submitted to the Director prior to or
together with any reports, information, or applications to be signed by an authorized representative [40 CFR
122.22]
d. Certification. Any person signing a document under paragraphs a. or b. of this section shall make the following
certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED:
7 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 orpersons 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. "
12. Permit Actions
This permit may be modified, revoked and reissued, or terminated for cause. The filing of a request by the
Permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned changes
or anticipated noncompliance does not stay any permit condition [40 CFR 122.41(f)].
13. Permit Modification, Revocation and Reissuance, or Termination
The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit,
revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations
contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code, Subchapter 02H .0100; and North Carolina General Statute 143.215.1 et. al.
14. Annual Administering and Compliance Monitoring Fee Requirements
The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being
billed by the Division. Failure to pay the fee in a timely manner in accordance with 15A NCAC 02H .0105(b)(2)
may cause this Division to initiate action to revoke the permit.
Section C. Operation and Maintenance of Pollution Controls
1. Certified Operator
Owners of classified water pollution control systems must designate operators, certified by the Water Pollution
Control System Operators Certification Commission (WPCSOCC), of the appropriate type and grade for the
system, and, for each classification must [T15A NCAC 08G .0201]:
a. designate one Operator In Responsible Charge (ORC) who possesses a valid certificate of the type and grade at
least equivalent to the type and grade of the system;
b. designate one or more Back-up Operator(s) in Responsible Charge (Back-up ORCs) who possesses a valid
certificate of the type of the system and no more than one grade less than the grade of the system, with the
exception of no backup operator in responsible charge is required for systems whose minimum visitation
requirements are twice per year; and
c. submit a signed completed "Water Pollution Control System Operator Designation Form" to the Commission
(or to the local health department for owners of subsurface systems) countersigned by the designated certified
operators, designating the Operator in Responsible Charge (ORC) and the Back-up Operator in Responsible
Charge (Back-up ORC):
(1) 60 calendar days prior to wastewater or residuals being introduced into a new system; or
(2) within 120 calendar days following:
➢ receiving notification of a change in the classification of the system requiring the designation of a new
Operator in Responsible Charge (ORC) and Back-up Operator in Responsible Charge (Back-up ORC)
of the proper type and grade; or
➢ a vacancy in the position of Operator in Responsible Charge (ORC) or Back-up Operator in
Responsible Charge (Back-up ORC).
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(3) within seven calendar days of vacancies in both ORC and Back-up ORC positions replacing or designating
at least one of the responsibilities.
The ORC of each Class I facility (or the Back-up ORC, when acting as surrogate for the ORC) must:
➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment
facility must be visited at least weekly
➢ Comply with all other conditions of 15A NCAC 08G .0204.
The ORC of each Class II, III and IV facility (or the Back-up ORC, when acting as surrogate for the ORC) must:
➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment
facility must be visited at least five days per week, excluding holidays
➢ Properly manage and document daily operation and maintenance of the facility
➢ Comply with all other conditions of 15A NCAC 08G .0204.
2. Proper Operation and Maintenance
The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control
(and related appurtenances) which are installed or used by the Permittee to achieve compliance with the conditions
of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality
assurance procedures. This provision requires the Permittee to install and operate backup or auxiliary facilities only
when necessary to achieve compliance with the conditions of the permit [40 CFR 122.41(e)].
NOTE: Properly and officially designated operators are fully responsible for all proper operation and maintenance
of the facility, and all documentation required thereof, whether acting as a contract operator [subcontractor] or a
member of the Permittee's staff.
3. Need to Halt or Reduce not a Defense
It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this permit [40 CFR 122.41(c)].
4. Bypassing of Treatment Facilities
a. Bypass not exceeding limitations [40 CFR 122.41(m)(2)]
The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but
only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the
provisions of Paragraphs b. and c. of this section.
b. Notice [40 CFR 122.41(m)(3)]
(1) Anticipated bypass. If the Permittee knows in advance of the need for a bypass, it shall submit prior notice,
if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality
and effect of the bypass.
(2) Unanticipated bypass. The Permittee shall submit notice of an unanticipated bypass as required in Part
II.E.6. (24-hour notice).
c. Prohibition of Bypass
(1) Bypass from the treatment facility is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for bypass, unless:
(A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage;
(B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities,
retention of untreated wastes or maintenance during normal periods of equipment downtime. This
condition is not satisfied if adequate backup equipment should have been installed in the exercise of
reasonable engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance; and
(C) The Permittee submitted notices as required under Paragraph b. of this section.
(2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for a bypass as provided in any current or future system -wide collection system
permit associated with the treatment facility.
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(3) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse effects, if
the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c.
(1) of this section.
5. Upsets
a. Effect of an upset [40 CFR 122.41(n)(2)]: An upset constitutes an affirmative defense to an action brought for
noncompliance with such technology based permit effluent limitations if the requirements of paragraph b. of
this condition are met. No determination made during administrative review of claims that noncompliance was
caused by upset, and before an action for noncompliance, is final administrative action subject to judicial
review.
b. Conditions necessary for a demonstration of upset: Any Permittee who wishes to establish the affirmative
defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant
evidence that:
(1) An upset occurred and that the Permittee can identify the cause(s) of the upset;
(2) The Permittee facility was at the time being properly operated; and
(3) The Permittee submitted notice of the upset as required in Part ILE.6.(b) of this permit.
(4) The Permittee complied with any remedial measures required under Part II.B.2. of this permit.
c. Burden of proof [40 CFR 122.41(n)(4)]: The Permittee seeking to establish the occurrence of an upset has
the burden of proof in any enforcement proceeding.
6. Removed Substances
Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters
shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant
from such materials from entering waters of the State or navigable waters of the United States except as permitted
by the Commission. The Permittee shall comply with all applicable state and Federal regulations governing the
disposal of sewage sludge, including 40 CFR 503, Standards for the Use and Disposal of Sewage Sludge; 40 CFR
Part 258, Criteria For Municipal Solid Waste Landfills; and 15A NCAC Subchapter 2T, Waste Not Discharged To
Surface Waters. The Permittee shall notify the Permit Issuing Authority of any significant change in its sludge use
or disposal practices.
7. Power Failures
The Permittee is responsible for maintaining adequate safeguards (as required by 15A NCAC 02H .0124) to
prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means
of alternate power sources, standby generators or retention of inadequately treated effluent.
Section D. Monitoring and Records
1. Representative Sampling
Samples collected and measurements taken, as required herein, shall be representative of the permitted discharge.
Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the
discharge for the period the sample represents. All samples shall be taken at the monitoring points specified in this
permit and, unless otherwise specified, before the effluent joins or is diluted by any other wastestream, body of
water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit
Issuing Authority [40 CFR 122.410)].
2. Reporting
Monitoring results obtained during the previous month(s) shall be summarized for each month and reported on a
monthly Discharge Monitoring Report (DMR) Form (MR 1, 1. 1, 2, 3) or alternative forms approved by the
Director, postmarked no later than the last calendar day of the month following the completed reporting period.
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. Duplicate signed copies of these,
and all other reports required herein, shall be submitted to the following address:
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NC DENR / Division of Water Quality / Surface Water Protection Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected
and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The
devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements is consistent
with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a
maximum deviation of less than 10% from the true discharge rates throughout the range of expected discharge
volumes. Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained
to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device.
The Director shall approve the flow measurement device and monitoring location prior to installation.
Once -through condenser cooling water flow monitored by pump logs, or pump hour meters as specified in Part I of
this permit and based on the manufacturer's pump curves shall not be subject to this requirement.
4. Test Procedures
Laboratories used for sample analysis must be certified by the Division. Permittees should contact the Division's
Laboratory Certification Section (919 733-3908 or http://portal.ncdenr.org/web/wq/lab/cert) for information
regarding laboratory certifications.
Facilities whose personnel are conducting testing of field -certified parameters only must hold the appropriate field
parameter laboratory certifications.
Test procedures for the analysis of pollutants shall conform to the EMC regulations (published pursuant to NCGS
143-215.63 et. seq.), the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section
304(g), 33 USC 1314, of the CWA (as amended), and 40 CFR 136; or in the case of sludge use or disposal,
approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless other test procedures have been
specified in this permit [40 CFR 122.41].
To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection
and reporting levels that are below the permit discharge requirements and all data generated must be reported down
to the minimum detection or lower reporting level of the procedure. If no approved methods are determined
capable of achieving minimum detection and reporting levels below permit discharge requirements, then the most
sensitive (method with the lowest possible detection and reporting level) approved method must be used.
5. Penalties for Tampering
The CWA provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any monitoring
device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not
more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. If a
conviction of a person is for a violation committed after a first conviction of such person under this paragraph,
punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of not more than 4 years,
or both [40 CFR 122.41].
6. Records Retention
Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use
and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40 CFR
503), the Permittee shall retain records of all monitoring information, including:
➢ all calibration and maintenance records
➢ all original strip chart recordings for continuous monitoring instrumentation
➢ copies of all reports required by this permit
➢ copies of all data used to complete the application for this permit
These records or copies shall be maintained for a period of at least 3 years from the date of the sample,
measurement, report or application. This period may be extended by request of the Director at any time [40 CFR
122.41].
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7. Recording Results
For each measurement or sample taken pursuant to the requirements of this permit, the Permittee shall record the
following information [40 CFR 122.41]:
a. The date, exact place, and time of sampling or measurements;
b. The individual(s) who performed the sampling or measurements;
c. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
8. Inspection and Entry
The Permittee shall allow the Director, or an authorized representative (including an authorized contractor acting as
a representative of the Director), upon the presentation of credentials and other documents as may be required by
law, to;
a. Enter, at reasonable times, upon the Permittee's premises where a regulated facility or activity is located or
conducted, or where records must be kept under the conditions of this permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this permit;
c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices,
or operations regulated or required under this permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise
authorized by the CWA, any substances or parameters at any location [40 CFR 122.41(i)].
Section E Reporting Requirements
1. Change in Discharge
All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of
any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute
a violation of the permit.
2. Planned Changes
The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions
to the permitted facility [40 CFR 122.41(1)]. Notice is required only when:
a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR
122.29(b); or
b. The alteration or addition could significantly change the nature or increase the quantity of pollutants
discharged. This notification applies to pollutants subject neither to effluent limitations in the permit, nor to
notification requirements under 40 CFR 122.42(a)(1); or
c. The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices, and
such alteration, addition or change may justify the application of permit conditions that are different from or
absent in the existing permit, including notification of additional use or disposal sites not reported during the
permit application process or not reported pursuant to an approved land application plan.
3. Anticipated Noncompliance
The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other
activities that might result in noncompliance with the permit [40 CFR 122.41(1)(2)].
4. Transfers
This permit is not transferable to any person without prior written notice to and approval from the Director in
accordance with 40 CFR 122.61. The Director may condition approval in accordance with NCGS 143-215.1, in
particular NCGS 143-215.1(b)(4)b.2., and may require modification or revocation and reissuance of the permit, or
a minor modification, to identify the new permittee and incorporate such other requirements as may be necessary
under the CWA [40 CFR 122.41(1)(3), 122.61] or state statute.
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5. Monitoring Reports
Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CFR 122.41(1)(4)].
a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part II.D.2) or forms
provided by the Director for reporting results of monitoring of sludge use or disposal practices.
b. If the Permittee monitors any pollutant more frequently than required by this permit using test procedures
approved under 40 CFR Part 136 and at a sampling location specified in this permit or other appropriate
instrument governing the discharge, the results of such monitoring shall be included in the calculation and
reporting of the data submitted on the DMR.
6. Twenty-four Hour Reporting
a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that
potentially threatens public health or the environment. Any information shall be provided orally within 24
hours from the time the Permittee became aware of the circumstances. A written submission shall also be
provided within 5 days of the time the Permittee becomes aware of the circumstances. The written submission
shall contain a description of the noncompliance, and its cause; the period of noncompliance, including exact
dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to
continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance [40
CFR 122.41(1)(6)].
b. The Director may waive the written report on a case -by -case basis for reports under this section if the oral
report has been received within 24 hours.
c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response
personnel at [phone], [phone] or [phone].
7. Other Noncompliance
The Permittee shall report all instances of noncompliance not reported under Part II.E.5 and 6. of this permit at the
time monitoring reports are submitted. The reports shall contain the information listed in Part II.E.6. of this permit
[40 CFR 122.41(1)(7)].
8. Other Information
Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted
incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or
information [40 CFR 122.41(1)(8)].
9. Noncompliance Notification
The Permittee shall report by telephone to either the central office or the appropriate regional office of the Division
as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first
knowledge of the occurrence of any of the following:
a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of
wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge
digester; the known passage of a slug of hazardous substance through the facility; or any other unusual
circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate
wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass without treatment of all
or any portion of the influent to such station or facility.
Persons reporting such occurrences by telephone shall also file a written report within 5 days following first
knowledge of the occurrence. Also see reporting requirements for municipalities in Part IV.C.2.c. of this permit.
10. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33
USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices
of the Division. As required by the Act, effluent data shall not be considered confidential. Knowingly making any
false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143-
215. 1 (b)(2) or in Section 309 of the Federal Act.
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11. Penalties for Falsification of Reports
The CWA provides that any person who knowingly makes any false statement, representation, or certification in
any record or other document submitted or required to be maintained under this permit, including monitoring
reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of not more than
$25,000 per violation, or by imprisonment for not more than two years per violation, or by both [40 CFR 122.41].
12. Annual Performance Reports
Permittees who own or operate facilities that collect or treat municipal or domestic waste shall provide an annual
report to the Permit Issuing Authority and to the users/customers served by the Permittee (NCGS 143-215.1C). The
report shall summarize the performance of the collection or treatment system, as well as the extent to which the
facility was compliant with applicable Federal or State laws, regulations and rules pertaining to water quality. The
report shall be provided no later than sixty days after the end of the calendar or fiscal year, depending upon which
annual period is used for evaluation.
The report shall be sent to:
NC DENR / Division of Water Quality / Surface Water Protection Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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PART III
OTHER REQUIREMENTS
Section A. Construction
a. The Permittee shall not commence construction of wastewater treatment facilities, nor add to the plant's treatment
capacity, nor change the treatment process(es) utilized at the treatment plant unless (1) the Division has issued an
Authorization to Construct (AtC) permit or (2) the Permittee is exempted from such AtC permit requirements
under Item b. of this Section.
b. In accordance with NCGS 143-215.1(a5) [SL 2011-394], no permit shall be required to enter into a contract for the
construction, installation, or alteration of any treatment work or disposal system or to construct, install, or alter any
treatment works or disposal system within the State when the system's or work's principle function is to conduct,
treat, equalize, neutralize, stabilize, recycle, or dispose of industrial waste or sewage from an industrial facility and
the discharge of the industrial waste or sewage is authorized under a permit issued for the discharge of the
industrial waste or sewage into the waters of the State. Notwithstanding the above, the permit issued for the
discharge may be modified if required by federal regulation.
c. Issuance of an AtC will not occur until Final Plans and Specifications for the proposed construction have been
submitted by the Permittee and approved by the Division.
Section B. Groundwater Monitoring
The Permittee shall, upon written notice from the Director, conduct groundwater monitoring as may be required to
determine the compliance of this NPDES permitted facility with the current groundwater standards.
Section C. Changes in Discharges of Toxic Substances
The Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe (40 CFR 122.42):
a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of
any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following
"notification levels";
(1) One hundred micrograms per liter (100 µg/L);
(2) Two hundred micrograms per liter (200 µg/L) for acrolein and acrylonitrile; five hundred micrograms per liter
(500 µg/L) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and one milligram per liter (1 mg/L) for
antimony;
(3) Five times the maximum concentration value reported for that pollutant in the permit application.
b. That any activity has occurred or will occur which would result in any discharge, on a non -routine or infrequent
basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the
following "notification levels";
(1) Five hundred micrograms per liter (500 µg/L);
(2) One milligram per liter (1 mg/L) for antimony;
(3) Ten times the maximum concentration value reported for that pollutant in the permit application.
Section D. Facility Closure Requirements
The Permittee must notify the Division at least 90 days prior to the closure of any wastewater treatment system covered
by this permit. The Division may require specific measures during deactivation of the system to prevent adverse
impacts to waters of the State. This permit cannot be rescinded while any activities requiring this permit continue at the
permitted facility.
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PART IV
SPECIAL CONDITIONS FOR MUNICIPAL FACILITIES
Section A. Definitions
In addition to the definitions in Part II of this permit, the following definitions apply to municipal facilities:
Indirect Discharge or Industrial User
Any non -domestic source that discharges wastewater containing pollutants into a POTW regulated under section
307(b), (c) or (d) of the CWA. [40 CFR 403.3 (i) and 0) and 15A NCAC 02H .0903(b)(11)]
Interference
Inhibition or disruption of the POTW treatment processes; operations; or its sludge process, use, or disposal which
causes or contributes to a violation of any requirement of the Permittee's (or any satellite POTW's if different from the
Permittee) NPDES, collection system, or non -discharge permit or prevents sewage sludge use or disposal in
compliance with specified applicable State and Federal statutes, regulations, or permits. [15A NCAC 02H
.0903(b)(14)]
Pass Through
A discharge which exits the POTW into waters of the State in quantities or concentrations which, alone or with
discharges from other sources, causes a violation, including an increase in the magnitude or duration of a violation, of
the Permittee's (or any satellite POTW's, if different from the Permittee) NPDES, collection system, or non -discharge
permit. [15A NCAC 02H .0903(b)(23)]
Publicly Owned Treatment Works (POTW)
A treatment works as defined by Section 212 of the CWA, which is owned by a State or local government organization.
This definition includes any devices and systems used in the storage, treatment, recycling and reclamation of municipal
sewage or industrial wastes of a liquid nature. It also includes the collection system, as defined in 15A NCAC 2T
.0402, only if it conveys wastewater to a POTW treatment plant. The term also means the local government
organization, or municipality, as defined in section 502(4) of the CWA, which has jurisdiction over indirect discharges
to and the discharges from such a treatment works. In this context, the organization may be the owner of the POTW
treatment plant or the owner of the collection system into which an indirect discharger discharges. This second type of
POTW may be referred to as a "satellite POTW organization." [15A NCAC 02H .0903(b)(26)]
"Significant Industrial User" or "SIU"
An Industrial User that discharges wastewater into a publicly owned treatment works and that [15A NCAC 02H
.0903(b)(33)]:
1. Discharges an average of 25,000 gallons per day or more of process wastewater to the POTW (excluding sanitary,
noncontact cooling and boiler blowdown wastewaters); or
2. Contributes process wastewater which makes up five percent or more of the NPDES or non -discharge permitted
flow limit or organic capacity of the POTW treatment plant. In this context, organic capacity refers to BOD, TSS
and ammonia; or
3. Is subject to categorical standards under 40 CFR Part 403.6 and 40 CFR Parts 405-471; or
4. Is designated as such by the Permittee on the basis that the Industrial User has a reasonable potential for adversely
affecting the POTW's operation or for violating any pretreatment standard or requirement, or the POTW's effluent
limitations and conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options;
5. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting
the criteria in paragraphs 1 or 2 of this definition above has no reasonable potential for adversely affecting the
POTW's operation or for violating any pretreatment standard or requirement, the POTW's effluent limitations and
conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options, and thus is not a
Significant Industrial User (SIU); or
6. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting
the criteria in paragraph 3 of this definition above meets the requirements of 40 CFR Part 403.3(v)(2) and thus is a
non -significant categorical Industrial User.
Section B. Publicly Owned Treatment Works (POTWs)
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All POTWs must provide adequate notice to the Director of the following [40 CFR 122.42(b)]:
1. Any new introduction of pollutants into the POTW from an indirect discharger, regardless of the means of
transport, which would be subject to section 301 or 306 of CWA if it were directly discharging those pollutants;
and
2. Any substantial change in the volume or character of pollutants being introduced by an indirect discharger as
influent to that POTW at the time of issuance of the permit.
3. For purposes of this paragraph, adequate notice shall include information on (1) the quality and quantity of effluent
introduced into the POTW, and (2) any anticipated impact that may result from the change of the quantity or
quality of effluent to be discharged from the POTW.
Section C. Municipal Control of Pollutants from Industrial Users.
1. Effluent limitations are listed in Part I of this permit. Other pollutants attributable to inputs from Industrial Users
discharging to the POTW may be present in the Permittee's discharge. At such time as sufficient information
becomes available to establish limitations for such pollutants, this permit may be revised to specify effluent
limitations for any or all of such other pollutants in accordance with best practicable technology or water quality
standards.
2. Prohibited Discharges
a. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibition against the
introduction of pollutants or discharges into the waste treatment system or waste collection system which
cause or contribute to Pass Through or Interference as defined in 15A NCAC 02H .0900 and 40 CFR 403. [40
CFR 403.5(a)(1)]
b. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibitions against the
introduction of the following wastes in the waste treatment or waste collection system [40 CFR 403.5(b)]:
(1) Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to,
wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade
using the test methods specified in 40 CFR 261.21;
(2) Pollutants which cause corrosive structural damage to the POTW, but in no case discharges with pH lower
than 5.0, unless the works is specifically designed to accommodate such discharges;
(3) Solid or viscous pollutants in amounts which cause obstruction to the flow in the POTW resulting in
Interference;
(4) Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a Discharge at a flow rate
and/or pollutant concentration which will cause Interference with the POTW;
(5) Heat in amounts which will inhibit biological activity in the POTW resulting in Interference, but in no
case heat in such quantities that the temperature at the POTW Treatment Plant exceeds 40°C (104°F)
unless the Division, upon request of the POTW, approves alternate temperature limits;
(6) Petroleum oil, non -biodegradable cutting oil, or products of mineral oil origin in amounts that will cause
Interference or Pass Through;
(7) Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that
may cause acute worker health and safety problems; or
(8) Any trucked or hauled pollutants, except at discharge points designated by the POTW.
c. The Permittee shall investigate the source of all discharges into the POTW, including slug loads and other
unusual discharges, which have the potential to adversely impact the Permittee's Pretreatment Program and/or
the operation of the POTW.
The Permittee shall report such discharges into the POTW to the Director or the appropriate Regional Office.
Any information shall be provided orally within 24 hours from the time the Permittee became aware of the
circumstances. A written submission shall also be provided within 5 days of the time the Permittee becomes
aware of the circumstances. The written submission shall contain a description of the discharge; the
investigation into possible sources; the period of the discharge, including exact dates and times; if the
discharge has not ceased, the anticipated time it is expected to continue; and steps taken or planned to reduce,
eliminate, and prevent reoccurrence of the noncompliance,
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3. With regard to the effluent requirements listed in Part I of this permit, it may be necessary for the Permittee to
supplement the requirements of the Federal Pretreatment Standards (40 CFR, Part 403) to ensure compliance by
the Permittee with all applicable effluent limitations. Such actions by the Permittee may be necessary regarding
some or all of the industries discharging to the municipal system.
4. The Permittee shall require any Industrial User (IU) discharging to the POTW to meet Federal Pretreatment
Standards developed under Section 307(b) of the Act as amended (which includes categorical standards and
specific local limits, best management practices and narrative requirements). Prior to accepting wastewater from
any Significant Industrial User (SIU), the Permittee shall either develop and submit to the Division a new
Pretreatment Program or, as necessary, a modification of an existing Pretreatment Program, for approval as
required under section D below as well as 15A NCAC 02H .0907(a) and (b). [40 CFR 122.440)(2)]
5. This permit shall be modified, or alternatively, revoked and reissued, to incorporate or modify an approved POTW
Pretreatment Program or to include a compliance schedule for the development of a POTW Pretreatment Program
as required under Section 402 (b)(8) of the CWA and implementing regulations or by the requirements of the
approved State pretreatment program, as appropriate.
Section D. Pretreatment Programs
Under authority of sections 307 (b) and (c) and 402(b)(8) of the CWA and implementing regulations 40 CFR 403,
North Carolina General Statute 143-215.3(14) and implementing regulations 15A NCAC 02H .0900, and in accordance
with the approved pretreatment program, all provisions and regulations contained and referenced in the pretreatment
program submittal are an enforceable part of this permit. [40 CFR 122.440)(2)]
The Permittee shall operate its approved pretreatment program in accordance with Section 402(b)(8) of the CWA, 40
CFR 403, 15A NCAC 02H .0900, and the legal authorities, policies, procedures, and financial provisions contained in
its pretreatment program submission and Division approved modifications thereof. Such operation shall include but is
not limited to the implementation of the following conditions and requirements. Terms not defined in Part II or Part IV
of this permit are as defined in 15A NCAC 02H .0903 and 40 CFR 403.3.
1. Sewer Use Ordinance (SUO)
The Permittee shall maintain adequate legal authority to implement its approved pretreatment program. [15A
NCAC 02H .0903(b)(32), .0905 and .0906(b)(1); 40 CFR 403.8(f)(1) and 403.9(b)(1) and (2)]
2. Industrial Waste Survey (IWS)
The Permittee shall implement an IWS consisting of the survey of users of the POTW collection system or
treatment plant, as required by 40 CFR 403.8(f)(2)(i-iii) and 15A NCAC 02H .0905 [also 40 CFR 122.440)(1)],
including identification of all Industrial Users that may have an impact on the POTW and the character and amount
of pollutants contributed to the POTW by these Industrial Users and identification of those Industrial Users
meeting the definition of SIU. Where the Permittee accepts wastewater from one or more satellite POTWs, the
IWS for the Permittee shall address all satellite POTW services areas, unless the pretreatment program in those
satellite service areas is administered by a separate Permittee with an approved Pretreatment Program. The
Permittee shall submit a summary of its IWS activities to the Division at least once every five years, and as
required by the Division. The IWS submission shall include a summary of any investigations conducted under
paragraph C.2.c. of this Part. [15A NCAC 02H .0903(b)(13), .0905 and .0906(b)(2); 40 CFR 403.8(f)(2) and 403.9]
3. Monitoring Plan
The Permittee shall implement a Division -approved Monitoring Plan for the collection of facility specific data to
be used in a wastewater treatment plant Headworks Analysis (HWA) for the development of specific pretreatment
local limits. Effluent data from the Plan shall be reported on the DMRs (as required by Parts ILD and II.E.5.). [15A
NCAC 02H .0903(b)(16), .0906(b)(3) and .0905]
4. Headworks Analysis (HWA) and Local Limits
The Permittee shall obtain Division approval of a HWA at least once every five years, and as required by the
Division. Within 180 days of the effective date of this permit (or any subsequent permit modification) the
Permittee shall submit to the Division a written technical evaluation of the need to revise local limits (i.e., an
updated HWA or documentation of why one is not needed) [40 CFR 122.44]. The Permittee shall develop, in
accordance with 40 CFR 403.5(c) and 15A NCAC 02H .0909, specific Local Limits to implement the prohibitions
listed in 40 CFR 403.5(a) and (b) and 15A NCAC 02H .0909. Pursuant to 40 CFR 403.5, local limits are
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NPDES Permit Standard Conditions
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enforceable Pretreatment Standards as defined by 40 CFR 403.3(1). [15A NCAC 02H .0903(b)(10), .0905, and
.0906(b)(4)]
5. Industrial User Pretreatment Permits (IUP) & Allocation Tables
In accordance with NCGS 143-215.1, the Permittee shall issue to all Significant Industrial Users, permits for
operation of pretreatment equipment and discharge to the Permittee's collection system or treatment works. These
permits shall contain limitations, sampling protocols, reporting requirements, appropriate standard and special
conditions, and compliance schedules as necessary for the installation of treatment and control technologies to
assure that their wastewater discharge will meet all applicable pretreatment standards and requirements. The
Permittee shall maintain a current Allocation Table (AT) which summarizes the results of the HWA and the limits
from all 1UPs. Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as
determined by the HWA. [15A NCAC 02H .0906(b)(6), .0909, .0916, and .0917; 40 CFR 403.5, 403.8(f)(1)(iii);
NCGS 143-215.67(a)]
6. Authorization to Construct (AtQ
The Permittee shall ensure that an Authorization to Construct permit (AtQ is issued to all applicable Industrial
Users for the construction or modification of any pretreatment facility. Prior to the issuance of an AtC, the
proposed pretreatment facility and treatment process must be evaluated for its capacity to comply with all
Industrial User Pretreatment Permit (1UP) limitations. [ 15A NCAC 02H .0906(b)(7) and .0905; NCGS 143-
215. 1 (a)(8)]
7. POTW Inspection & Monitoring of their IUs
The Permittee shall conduct inspection, surveillance, and monitoring activities as described in its Division
approved pretreatment program in order to determine, independent of information supplied by Industrial Users,
compliance with applicable pretreatment standards. [15A NCAC 02H .0908(e); 40 CFR 403.8(f)(2)(v)] The
Permittee must:
a. Inspect all Significant Industrial Users (SIUs) at least once per calendar year;
b. Sample all Significant Industrial Users (SlUs) at least once per calendar year for all SIU permit -limited
parameters including flow except as allowed under 15A NCAC .0908(e); and
c. At least once per year, document an evaluation of any non -significant categorical Industrial User for
compliance with the requirements in 40 CFR 403.3(v)(2), and either continue or revoke the designation as non-
significant.
8. IU Self Monitoring and Reporting
The Permittee shall require all Industrial Users to comply with the applicable monitoring and reporting
requirements outlined in the Division -approved pretreatment program, the industry's pretreatment permit, or in 15A
NCAC 02H .0908. [15A NCAC 02H .0906(b)(5) and .0905; 40 CFR 403.8(f)(1)(v) and (2)(iii); 40 CFR
122.440)(2) and 40 CFR 403.12]
9. Enforcement Response Plan (ERP)
The Permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards
promulgated pursuant to section 307(b) and (c) of the CWA (40 CFR 405 et. seq.), prohibitive discharge standards
as set forth in 40 CFR 403.5 and 15A NCAC 02H .0909, specific local limitations, and other pretreatment
requirements. All remedies, enforcement actions and other, shall be consistent with the Enforcement Response
Plan (ERP) approved by the Division. [15A NCAC 02H .0903(b)(7), .0906(b)(8) and .0905; 40 CFR 403.8(f)(5)]
10. Pretreatment Annual Reports (PAR)
The Permittee shall report to the Division in accordance with 15A NCAC 02H .0908. In lieu of submitting annual
reports, Modified Pretreatment Programs developed under 15A NCAC 02H .0904 (b) may be required to submit a
partial annual report or to meet with Division personnel periodically to discuss enforcement of pretreatment
requirements and other pretreatment implementation issues.
For all other active pretreatment programs, the Permittee shall submit two copies of a Pretreatment Annual Report
(PAR) describing its pretreatment activities over the previous calendar year to the Division at the following
address:
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NC DENR / Division of Water Quality / Surface Water Protection Section
Pretreatment, Emergency Response, and Collection Systems (PERCS) Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
These reports shall be submitted by March 1 of each year and shall contain the following:
a. Narrative
A narrative summary detailing actions taken, or proposed, by the Permittee to correct significant non-
compliance and to ensure compliance with pretreatment requirements;
b. Pretreatment Program Summaa (PPS)
A pretreatment program summary (PPS) on forms or in a format provided by the Division;
c. Significant Non -Compliance Report (SNCR)
A list of Industrial Users (IUs) in significant noncompliance (SNC) with pretreatment requirements, and the
nature of the violations on forms or in a format provided by the Division;
d. Industrial Data Summary Forms (IDSF)
Monitoring data from samples collected by both the POTW and the Significant Industrial Users (SIUs). These
analytical results must be reported on Industrial Data Summary Forms (IDSF) or on other forms or in a format
provided by the Division;
e. Other Information
Copies of the POTW's allocation table, new or modified enforcement compliance schedules, public notice of
Ns in SNC, a summary of data or other information related to significant noncompliance determinations for
Ns that are not considered SlUs, and any other information, upon request, which in the opinion of the Director
is needed to determine compliance with the pretreatment implementation requirements of this permit;
11. Public Notice
The Permittee shall publish annually a list of Industrial Users (IUs) that were in significant noncompliance (SNC)
as defined in the Permittee's Division -approved Sewer Use Ordinance with applicable pretreatment requirements
and standards during the previous twelve month period. This list shall be published within four months of the
applicable twelve-month period. [15A NCAC 02H .0903(b)(34), .0908(b)(5) and .0905 and 40 CFR
403.8(f)(2)(viii)]
12. Record Keeping
The Permittee shall retain for a minimum of three years records of monitoring activities and results, along with
support information including general records, water quality records, and records of industrial impact on the
POTW and shall retain all other Pretreatment Program records as required by 15A NCAC 02H .0908(f). [15A
NCAC 02H .0908(f); 40 CFR 403.12(o)]
13. Pretreatment Program Resources
The Permittee shall maintain adequate funding and qualified personnel to accomplish the objectives of its approved
pretreatment program. and retain a written description of those current levels of inspection. [I 5A NCAC 02H
.0906(b)(9) and (10) and .0905; 40 CFR 403.8(f)(3), 403.9(b)(3)]
14. Modification to Pretreatment Programs
Modifications to the approved pretreatment program including but not limited to local limits modifications, POTW
monitoring of their Significant Industrial Users (SIUs), and Monitoring Plan modifications, shall be considered a
permit modification and shall be governed by 40 CFR 403.18, 15 NCAC 02H .0114 and 15A NCAC 02H .0907.
Version 1110912011

City of Roxboro
April 26, 2013
Mr. Tom Belnick
Complex Permitting Unit
DWQ Planning Section
N.C. Dept. of Environment & Natural Resources
1617 Mail Service Center
Reference: Draft Permit
Roxboro Wastewater Treatment Plant
City of Roxboro, NC
NPDES Permit No. NCO21024
Subject: Revised Ammonia Limits
Dear Mr. Belnick,
The City of Roxboro has reviewed the preliminary information submitted by the Department of
Water Quality regarding reduced ammonia limits. The City of Roxboro has investigated the current
discharge and determined the existing wastewater treatment plant will not consistently meet the
proposed limits for ammonia. This proposed limit will place the facility under repeat violations if
improvements are not incorporated into the existing process. As you know this facility currently
meets its ammonia limits and has not seen any violations related to ammonia. Although we do not
agree with the proposed discharge limits, we will need sufficient time to investigate proper treatment
methods and required modifications to the existing facility to meet the proposed criteria. These
improvements will need to be discussed with our consulting engineer and reviewed by the State for
approval. In order to accomplish this task, we request the following schedule:
1. May 1, 2013 to June 1, 2013
a. Submit proposal to DWQ for review and approval
b. Begin negotiations with consultant to define scope of services
2. June 1, 2013 to July 1,2013
a. Submit contract to Council for approval
3. July 1, 2013 to December 30, 2013
a. Review data and develop methods of treatment
4. January 1, 2014 to July 1, 2015
a. Design facility
779 MouNinm Roni)- PO Bo.r 128-RoxHmo. NC 27573- [phone] - [phone]

5. July 1, 2015 to December 30, 2015
a. Submit design for approval
6. December 30, 2015 to June 1, 2016
a. Acquire funding
7. June 1, 2016 to December 30, 2016
a. Bidding, award and approval by State
8. January], 2017 to June 1, 2019
a. Construct facility
9. June 1, 2019 to August 31, 2019
a. Commission Facility
As previously stated, the existing facility will not meet the proposed discharge limits due to its age
and design parameters. We would like to take this opportunity to investigate current technology and
implement improvements that will meet future needs of this facility.
If you have any questions, please do not hesitate to call.
Sincerely,
Thomas S. Warren Jr
Assistant City Manager
cc: Don Garbrick PE

AFFIDAVIT OF INSERTION OF ADVERTISMENT
The Times -News Publishing Company
Public Notice
Nan lh Carolina
:nvironnicntal
Management
Burlington, NC
Cmnmission/NPOES
-
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Alamance County
Center
Raleigh. NC 2/699-1617
Notice of Intent to
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1, Debbie Shue, Legal Advertising Manager of the Times -News Publishing Co.,
Wastewater Permit
do certify that the advertisement of entitled
the North CamW,a l
Innrnental Management
Public Notice North Carolina Environmental Management Commission
commission proposes to
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the prnsonls) listed below.
Alamance County, Burlington, NC, in issues of
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5117113
.Belnick, Tom p
From:
Tommy Warren [[e-mail]]
Sent:
Wednesday, May 08, 2013 8:21 AM
To:
Belnick, Tom
Cc:
Andrew Oakley, Garbrick, Don; Derek Clayton
Subject:
RE: Roxboro WWTP NPDES rmit
That would be agreeable with the City. k ;7
Thank you for your assistance
Tommy Warren
From: Belnick, Tom [mailto:tom.belnick()ncdenr.00v]
Sent: Tuesday, May 07, 2013 4:44 PM
To: Tommy Warren
Subject: RE: Roxboro WWTP NPDES Permit
Thanks Mr. Warren. Based on this info, would Roxboro be comfortable with the new ammonia limit becoming effective
September 1, 2019? If yes, I'll prepare the Final permit, run it by EPA, then get it out the door.,
Tom Belnick
Supervisor, NPDES Complex Permitting Unit
NCDENR/Division of Water Quality
919-807-6390
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties
From: Tommy Warren [mailto:twarren(cicityofroxboro.com]
Sent: Thursday, May 02, 2013 2:37 PM
To: Belnick, Tom
Cc: Garbrick, Don; Andrew Oakley; Derek Clayton
Subject: Roxboro WWTP NPDES Permit
I have attached a letter concerning the new limits in the City of Roxboro's WWTP NPDES permit. We
are requesting sufficient time to investigate proper treatment methods and modify the plant to meet
the new limits. A hard copy will follow in the mail.
If you have any questions, please contact me by email or phone at 336-503-0489
Thank you for your assistance
Tommy
Thomas S. Warren, Jr
Assistant City Manager
City of Roxboro
779A Mountain Rd
PO Box 128
Roxboro. NC 27573
P 336-503-0489
F 336-503-0588

.Belnick, Tom
From: Belnick, Tom
Sent: Wednesday, April 10, 2013 11:36 AM
To: 'Derek Clayton'
Subject: RE: Roxboro WWTP NPDES Permit
Attachments: EPA comments. pdf
Derek -just a follow-up to our phone conversation today. For your NPDES permit renewal NC0021024, the draft permit
was dated November 7, 2012, but we have not finalized it as yet since the original permit writer Gil Vinzani has left, and
we also received an EPA request for a full 90-day review and their subsequent comments (attached). I am now trying to
finalize the permit. After reviewing the EPA comments, I believe I can address EPA concerns about Oil&Grease limit,
Mercury, and Copper/Zinc without any changes to the permit. However, I don't have a good explanation for the current
ammonia limits of 5 mg/I (summer) and 13 mg/I (winter). Since your receiving stream is considered zero -flow (limited
dilution), our general procedure has been to apply the standards at end of pipe. This would result in the following
ammonia limits:
Summer (April -October)
Monthly Average = 1.0 mg/I NH3-N
Weekly Average = 3 mg/I NH3-N
Winter (November -March)
Monthly Average = 1.8 mg/I NH3-N
Weekly Average = 5.4 mg/I NH3-N
I took a quick look at your DMR data for 2012, and it appears that your WWTP would comply with the above ammonia
limits. Please take a look at your data and let me know if the proposed ammonia limits are agreeable. Please also
discuss the situation with Assistant City Manager Thomas Warren. If you have questions, feel free to contact me by
phone/email. Thanks.
Tom Belnick
Supervisor, NPDES Complex Permitting Unit
NCDENR/Division of Water Quality
919-807-6390
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties
From: Derek Clayton[mailto:dclaytonCalcityofroxboro.com]
Sent: Wednesday, April 10, 2013 10:41 AM
To: Belnick, Tom
Subject: Roxboro WWTP NPDES Permit
Mr. Belnick
Please attach your permit sumary to this email. This will allow it to pass thru our firewall.
Thanks,
Derek Clayton
WWTP Supt.
City of Roxboro

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�?Ai2x 1 /4941A W01?
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J„cEa Sr"1F0
A UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
_< hh
�n W REGION 4
ATLANTA FEDERAL CENTER
;Hor 61 FORSYTH STREET
I+t vuoSEO ATLANTA, GEORGIA 30303-8960 LPe
FEB 11 2013 [PWIMAN14Mr. Jeff Poupart
Supervisor, Point Source Branch
Division of Water Quality
North Carolina Department of Environment
and Natural Resources
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: Draft Permit Review
Roxboro Wastewater Treatment Plant
i
National Pollutant Discharge Elimination System Permit No. NCO021024
Dear Mr. Poupart:
The U.S. Environmental Protection Agency has completed its review of the draft permit, fact sheet anc
application for the National Pollutant Discharge Elimination System permit No. NC0021024, Roxboro
Wastewater Treatment Plant (WWTP). We offer the following comments and recommendations.
The EPA commends you, the permit writer and the State of North Carolina on the continued
effort to protect its natural resources. This is a major W WTP with a capacity of 5 million
gallons per day. This facility accepts 99 percent domestic and 1 percent industrial wastewater
and is subject to pretreatment program requirements. This facility accepts septic tank
wastewater and discharges to the.Roanoke River Basin which is not a Nutrient Sensitive
Water Body. The year-round 7Q10 flow is zero (0) cubic feet per second (cfs). The receiving
water body is biologically impaired.
2. We note that the draft permit contains significant changes to the effluent characteristics and
conditions from the current permit which expired on May 31, 2012. A new dechlorination
system was added. Data analyses indicated that total copper and zinc exhibited a reasonable
potential to cause exceedances of water quality standards.
3. The fact sheet should contain calculations or other necessary explanation to show how you
derived specific effluent limits and conditions for all parameters (40 CFR 124.56(a)),
including but not limited to, ammonia nitrogen (NH3 (N)), copper, zinc, and oil and grease.
The EPA recommends the following:
a) NH3 as N: We note that the draft permit includes NH3 as N limits of 5.0 mg/1
(monthly average) and 15.0 mg/I (weekly average) for summer months, and 13.0 mg/I
(monthly average) to 35.0 mg/I (weekly average) for the winter months. However, the
current fact sheet does not include this information nor the calculations that were used
to derive this effluent limit.
Internet Address uRL) • http://w .opa.gov
Recycled/Recyclable . PnMed w90 Vegetable Od Based Inks on Recycled Paper (Minimum 30 % Poslconsumer)

The EPA recommends that you include the calculations or other necessary
explanation of this effluent limit in the final fact sheet (40 CFR 124.56(a)). We also
recommend that the final fact sheet should demonstrate that this limit ensures
compliance with North Carolina's interpretation of its narrative water quality standard
for ammonia toxicity (1.0 mg/I in the summer and 1.8 mg/1 in the winter) as
expressed in your 1999 "Ammonia Toxicity Policy" See 40 CFR
122.44(d)(1)(vi)(A)), especially since there is no dilution available in the receiving
water with a 7Q10 flow of 0.0 cfs.
The EPA notes that our "1999 Update of Ambient Water Quality Criteria for
Ammonia' provides recommended freshwater acute criteria for ammonia that range
from 0.885 mg/l to 48.8 mg/1 depending upon pH and fish species. The recommended
chronic criteria range from 0.179 mg/1 to 10.8 mg/1 depending upon pH and
temperature as well as the presence or absence of early life stages of fish at lower
temperatures.
b) Copper and Zinc: The draft fact sheet indicates reasonable potential exists for this
discharge to exceed North Carolina's action levels for these metals but the draft fact
sheet and permit do not include effluent limits for these parameters.
The EPA recommends that the final fact sheet discuss the requirements in 15A
NCAC 02B .0211(4) to implement these action levels with whole effluent toxicity
test requirements. The EPA notes that if we were issuing this permit, we would
include weekly average and monthly average effluent limits for these metals (40 CFR
122.44(d)(1)(vi)(A))•
c) Oil and Grease: The draft fact does not discuss the basis for the oil and grease
monthly average limit of 30 mg/I. -
The EPA recommends that the final fact sheet include the calculations or other
necessary explanation to show how you derived this effluent limit (40 CFR
124.56(a)).
4. The EPA commends North Carolina for implementing our September 6, 2012,
recommendations to address statewide mercury impairment and North Carolina's approved
mercury Total Maximum Daily Load. The draft permit includes a special condition to
develop and implement a mercury minimization plan to begin to address methylmercury in
fish tissue (40 CFR 122.44(d)(1)(vii)(B)).
However, as we noted in that recommendation letter, North Carolina should still assess
( reasonable potential to cause or contribute to the state's existing total mercury water column
standard of 12 ng/l. Your draft fact sheet showed that the facility's maximum discharge of
27.5 ng/l of total mercury has reasonable potential to cause an exceedance of this standard.
The EPA recommends that you retain the 12 ng/l weekly average limit in the final permit (40
CFR 122.44(d)(1)(i)) in addition to the mercury minimization plan to address
methylmercury.

If you propose to issue a permit which significantly differs from this draft permit, or if you have
received significant public comments objecting to the draft permit, please send us a copy of the
proposed permit for review (State of North Carolina/EPA Memorandum of Agreement (MOA) Section
1 V.B.6). Otherwise, please send us a copy of the issued permit and associated documentation (MOA
Section IV.B.8), including your response to significant comments (40 CFR 124.17). If you have any
questions, please contact Mr. Ben Ghosh of my staff at [phone].
Sincerely,
Christopher homas, Chief
Pollution Control and Implementation Branch
Water Protection Division
cc: Mr. Tom Belnick
Complex Permitting Unit (by email)
w1wn (,Iami Ifire
kvte4

•Belnick, Tom
From: Belnick, Tom
Sent: Monday, February 11, 2013 4:04 PM
To: '[e-mail]'; Poupart, Jeff
Cc: [e-mail]; [e-mail]
Subject: RE: Draft Permit Review Roxboro Wastewater Treatment Plant NCO021024
Folks- looks like you have the wrong Permittee being copied. Mr Woody is with City of Raleigh. You should be sending a
copy to Mr. Thomas S. Warren, Assistant City Manager, City of Roxboro, for NCO021024/Roxboro WWTP.
Tom Belnick
Supervisor, NPDES Complex Permitting Unit
NCDENR/Division of Water Quality
919-807-6390
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties
From: Nuhfer.Mark(qlepamail.epa.gov(mailto:Nuhfer.Mark(alepamail.epa.govI
Sent: Monday, February 11, 2013 3:20 PM
To: Poupart, Jeff; Belnick, Tom
Cc: Ghosh.Ben(a)epamail.epa.gov; Thomas.Chris([e-mail]
Subject: Draft Permit Review Roxboro Wastewater Treatment Plant NCO021024
Gentlemen- / 1466 &.r W
We have completed our review of the draft permit for the Roxboro Wastewater Treatment Plant NC0021024. Please find
our comments and recommendations below. ------
The signed original and copy to Mr. Woody will be mailed out today.
(Seeauachedfile: Scan001.PDF)
Sincerely,
V
Mark Nuhfer, Chief
Municipal and Industrial NPDES Section
EPA Region 4
61 Forsyth Street, SW
Atlanta, GA 30303
404-562-9390
404-562-8692(FAX)
n u hfer. ma rk(6epa. gov
1. Be helpful. Listen to your customers.
2. Respond to all phone calls by the end of the next business day.
3. Respond to all correspondence within 10 business days.
4. Make clear, timely, accurate information accessible.
5. Work collaboratively with partners to improve products and services.
6. Involve customers and use their ideas and input!

•Belnick, Tom
From: [e-mail]
Sent: Monday, February 11, 2013 3:20 PM
To: Poupart, Jeff; Belnick, Tom
Cc: Ghosh.Ben @epamail.epa.gov; [e-mail]
Subject: Draft Permit Review Roxboro Wastewater Treatment Plant NCO021024
Attachments: ScanOO1.PDF
Gentlemen -
We have completed our review of the draft permit for the Roxboro Wastewater Treatment Plant NCO021024. Please find
our comments and recommendations below.
The signed original and copy to Mr. Woody will be mailed out today.
(See attached file: Scan001.PDF)
Sincerely,
Mark Nuhfer, Chief
Municipal and Industrial NPDES Section
EPA Region 4
61 Forsyth Street, SW
Atlanta, GA 30303
404-562-9390
404-562-8692(FAX)
nuhfer.markna epa.gov
1. Be helpful. Listen to your customers.
2. Respond to all phone calls by the end of the next business day.
3. Respond to all correspondence within 10 business days.
4. Make clear, timely, accurate information accessible.
5. Work collaboratively with partners to improve products and services.
6. Involve customers and use their ideas and input!

•Vinzani, Gil
From:
Belnick, Tom
Sent:
Wednesday, December 12, 2012 4:14 PM
To:
Vinzani, Gil, Chernikov, Sergei
Cc:
Poupart, Jeff
Subject:
FW: Extension of Time/ Ammonia and Phosphorus
Attachments:
Scan001.PDF
EPA has officially requested a full 90day review of the Draft permits listed below- they expressed concerns about
nutrients and ammonia.
/99�f w�
• City of Roxboro (NC0021024, Gil's permit). Gil- please let me know basis of ammom noted a zero
flow stream, no dilution. This is Roanoke Basin, so nutrients should not be a concern.
• City of Raleigh/Smith Creek WWTP (NC0030759, Sergei's permit). Sergei- let's confirm with Mike T that TP does
not need to be limited below 2 mg/I. We should cite the Rule that sets the TP limits in the lower Neuse.
A full 90-day review will put us at - 2/11/2013.
Tom Belnick
Supervisor, NPDES Complex Permitting Unit
NCDENR/Division of Water Quality
919-807-6390
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties
From: Ghosh.Ben(o)epamail.epa.gov fmailto:Ghosh.Ben(alepamail.epa gov]
Sent: Wednesday, December 12, 2012 2:43 PM
To: Belnick, Tom
Cc: Nuhfer.Mark(?lepamail.epa.gov; Schwartz.Paul(cbepamail.epa.gov; Thomas. Chris(alepamail.epa.gov; Gordon.Lisa-
Perras(a)epamail.epa.gov; Fasselt.VeronicaC-Oepamail.epa.gov; Collins.Garvw(o)eoamail.ei)a.gov
Subject: Extension of Time/ Ammonia and Phosphorus
a* �11
Here are the 90 day extension letters for Roxboro and Smith Valley WWTP. They will have a date stamp of 12/12/12
The management here at EPA is deeply concerned about nutrient problems in R4 including NC. So, I invite you all work
with us with to protect our water. I am sure that you have the same desire to protect our environment.
Roxboro plant is going thru an upgrade by adding a new chlorination system, and Smith Creek plant is going thru an
expansion in various ways.They should NOT get "existing" nutrient limits. NC's standards, as they apply to " expanding,"
discharges greater than one (1) mgd should apply to those WWTPs.
I have not seen any modeling or any calculation to which I can rely on how you came up these limits. Let us have these
90 days to figure means how we can do better to protect our environment. I would like you all to think seriously if you can
prepare modified permits to reflect your standards, BPJ and BAT etc.etc.
Please feel free to contact me at any time. Happy Holidays!
II1 attachment

'
YA - wA4k ill ii-k%✓,fr—
JaQEO S��lFS
A >z
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
<m n
REGION 4
ATLANTA FEDERAL CENTER
;Fro oor
61 FORSYTH STREET
r9< PROSEo
ATLANTA, GEORGIA 30303-8960
DEC 1 2 2012
Mr. Charles Wakild
Director, Division of Water Quality
North Carolina Department of Environment
and Natural Resources
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: Draft Permit Review
Roxboro Wastewater Treatment Plant
National Pollutant Discharge Elimination System Penrtit No. NC0021024
Dear Mr. Wakild:
This letter is to notify you that the U.S. Environmental Protection Agency will need additional time to
complete its review of the draft National Pollutant Discharge Elimination System permit referenced above.
The draft permit and the application materials were transmitted by your office to the EPA on November 13,
2012. In accordance with Section IV(A)(12)(b) of the North Carolina/EPA Memorandum of Agreement
(MOA) and 40 Code of Federal Regulations § 123.44(a), the EPA is providing written notice that it will use
the full 90-day review period authorized by the MOA and federal regulations. The EPA Region 4 will make
every effort to provide any comments or objections before the 90-day review period ends.
If you have any questions, please contact Mr. Ben Ghosh of my staff at [phone].
cc: Mr. Thomas S. Warren, Jr.
Assistant City Manager
City of Roxboro
Sincerely,
wl*vt+y00 -Er
Christopher B. Thomas, Chief
Pollution Control and Implementation Branch
Water Protection Division
DE C EovE(1
0 201
DEC 2 _ , I�
i jJ
OEitlP. - `Y43ER CUFLITY
SURFACE WAi ER PFvTECTIM SECTION
Internet Address (URL) • http://www.epa.gov
Racycled/Recyclable • Pnnled with Vegetable Oil Based Inks on Recycled Paper (Minimum 30% Postconsumer)

City of Roxboro WWTP REASONABLE POTENTIAL ANALYSIS
NCO021024
Qw(MGD)= 5.00 WWTP/WTPCiass: IV
IQIOS (cfs)= 0.00 IWC @ IQIOS = 100.00%
7QIOs(cfs)= 0.00 IWC @7QIOS= 100.00%
7Q I OW(cfs)= 0.00 IWC@7QIOW= 100.00%
30Q2(cfs)= 0.00 IWC a 30Q2= 100.00%
Avg. Stream Flow, QA (efs) = 4.00 1 WC @ QA = 65.96%
Receiving Stream: Marlowe Creek Stream Class: C
Outfall•001
Qw = 5 MGD
PARAMETER
STANDARDS S CRITERIA(2)
to
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
NC WQS/ Applied '/2 FAV/
Max Pred
11)
a
z
❑ H Del Allowable Cw
Chronic Standard Acute
Cw
Acute: NO WQS
-
Arsenic
C
50 FW(7QIOs)
ugfL
3 0
282
Note: it<9
Default C.V.
_
Chronic 50.0
_
Limited data set
N_ o value> Allowable-C,_
-
�--_�-------
Arsenic
C
10 HH/WS(Qavg)
ug/L
3 0
28.2
Chronic:-----15.2 --
ui --- —
No hits. No monitoimg required.
Note: n<9
Default C.V
No value >Allowable Cw
- •
Acute: 1,022.0
-
Chromium
NC
50 FW(7QIOs) 1022
ug(L
3 1
33.8
Note: n59
Dci'ault C.V.
Chronic: 50.0
No RP, Predicted Max. a 50%ofAllowable Cw-
Limited data set
No value > Allowable Cw
defer to LTMP
Acute. 7.3
-
Copper(AL)
NC
7 FW(7QIOs) 7
ug/L
109 105
24
Chronic: 7.0
_ _ _ _ _ _ _ _' _ _____
RP for AL(Cu,Zn,Ag,Fe,CI) apply Quarterly
62 value(s)> Allowable Cw
Monitoring in conjunction. with TOX Test
Acute: 22.0
- -
Cyanide
NC
5 FW(7QIOs) 22
10
ug/L
156 2
5.0
_ _ _ _ _ _ _ _ _
Chronic: 5.0
_ _
No RP , no hits above detection levels, no monitoring
No value > Allowable Cw
required (defer to LTMP)
Acute: NO WQS
Mercury
NC
12 FW(7QIOs)
0.5
ng/L
156 128
39.3
__ _ _
_ _ _ _
Chronic: 12.0
Defer to Division guidelinesfor TMDL permitting
I value(s) > Allowable Cw
Acute: 261.0
Nickel
NC
88 FW(7Q I Os) 261
ug/L
154 7
814
'_'_ _
_ _ _ ___ ____
Chronic: 88.0
_ _ _ _' _ _ __
No RP Predicted Max a 50%of Allowable Cw -
Novalue>Allowable Cw
defer to LTMP
Acute: 67.0
-'
Zinc (AL)
NC
50 FW(7QIOs) 67
ug11.
110 I10
364.0
_ _____ ____
Chronic: 50.0
RP for AL(Cu,Zn,Ag,Fe, CI) _ apply Ouanerly
58 value(s) > Allowable Co;
Monitoring in conjunction with TOX Test
2011 RPA-Freshest., rpa
Page 1 of 1 10/18/2012

NAG1 Skeei(h4J)f- 514'0/eM 144W d4471 . SIX13
DENR / DWQ / NPDES Unit
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
City of Roxboro Wastewater Treatment Plant
Renewal of NPDES Permit NCO021024
Facility Information
Applicant/FacilityApplicant/Facility Name
City of Roxboro / Roxboro WWTP
Applicant Address
P O Box 128, 105 South Lamar Street, Roxboro NC 27573
Facility Address
902 Cavel-Chub Lake Road, Roxboro 27573
Permitted Flow MGD
5.0
Type of Wastewater
Municipal 99 domestic; 1% industrial
Facility Class / Permit Status
Class IV, Major/ Renewal
Drainage Basin / County
Roanoke River Basin / Person Count
Miscellaneous
Receiving Stream
Marlowe Creek
Re ional Office
Raleigh
Stream Classification
C
State Grid /
USGS To o Quad
B 23 NW/
Roxboro, NC
303 d Listed?
Yes
8-Digit HUC.,
03010104
Subbasin
03-02-05
Date:'
October 20, 2012
Drainage Areas .' mi.
4.7
•
„
Lat. 360 26' 41' Long. 780 58' 47"
Summer 7Q10 cfs '
0
Winter 7Q10 (cfs)
0
30Q2 cfs
0
Average Flow cfs
4.0
Stream Index
22-58-12-6a
IWC (%)
100 %
Summary
• The City of Roxboro has applied for renewal of its NPDES wastewater treatment plant
(WWTP) permit. The WWTP serves a population of over 8600, and has two significant
industrial users (SIUs). The SIUs are Owens-Corning Metal Systems, which processes
aluminum coil (13,422 GPD), and Eaton Corporation (14,000 GPD), which manufactures
automobile parts.
• The WWTP discharges to Marlowe Creek (stream index 22-58-12-6a), a Class C
waterbody within the Roanoke River Basin. This stream provides limited dilution
because of zero -flow 7Q10 conditions.
• Marlowe Creek is listed on North Carolina's 2012 303(d) list of impaired waters, and has
been listed since 1998 due to impaired biological integrity. Sources of impairment
include municipal pretreatment (industrial dischargers), minor non -municipals, collection
system failures, and urban runoff from storm sewers.
Roxboro's WWTP is a 5.0 MGD publicly owned treatment works (POTW) utilizing
activated sludge wastewater treatment facilities to treat domestic and industrial
wastewater. The treatment system utilizes a septic tank unloading facility; two bar
Fact Sheet
Renewal -- NPDES Permit NCO021024
Page 1

screens, two grit removal devices; two aeration basins (3 MG each); three secondary
clarifiers, a disinfection system (sodium hypochlorite) with two contact chambers; two
aerobic digesters; and three sludge drying beds.
• The average flow over the period January 2011 to May 2012 was 1.67 MGD. This
represents 33 percent of the design flow of the plant. The maximum single daily flow
during this same period was 6.31 MGD.
• On September 12, 2008, the facility obtained an authorization to construct (ATC) permit
for dechlorination facilities utilizing calcium thiosulfate. The supplement to permit sheet
was modified to reflect this new treatment component.
The NPDES application included an 1/1 study which concluded that the facility averages
0.119 MGD of inflow /infiltration. The study period was from September 2010 until
August 2011. This comprises only about seven percent of the total actual influent flow.
Compliance Review
The facility received an NOV for an exceedance of the total mercury limit of 12 ng/L (actual
sample result: 27.5 ng/L) on November 21, 2011. As per new Division guidelines under the
recently approved TMDL, the facility will no longer be subject to a limit for total mercury (see
discussion below). The only other NOV during this past permit term was for total cyanide,
which was a weekly average exceedance in 2008.
Raleigh Regional Office (RRO) inspector Thomas Ascenzo conducted a facility inspection
and prepared a Staff Report dated June 28, 2011. This facility was deemed to be in very
good condition, well maintained, and in compliance with the permit. No specific areas for
improvement were noted.
A review of Roxboro's quarterly whole effluent toxicity (WET) records from January 2008
through June 2012 showed one test failure in March 2011. Retesting in April, May, and
June of that year all passed. Overall the facility passed 19 of 20 chronic toxicity tests. All
second -species WET testing results during this review period were passed.
Reasonable Potential Analysis
To establish a list of pollutants of concern (POCs), the Division examined Roxboro's permit
application, pretreatment data, and DMRs from January 2008 through May 2012. Both total
copper and total zinc exhibited reasonable potential to exceed WQ standards. As action -
level parameters, the permit will specify quarterly monitoring. No other parameter showed
reasonable potential, including arsenic, cyanide, chromium, and nickel.
Total Mercury Analysis
Since there is no dilution available in Marlowe Creek based on 7Q10 low flow conditions, the
mercury standard of 12 ng/L was compared to the annual averages of mercury sampling
over the past five years. The results are shown on the following table:
Fact Sheet
Renewal -- NPDES NC0021024
Page 2

YEAR
2008
2009
2010
2011
.2012*'
#SAMPLES ,_
45
52
53
54
34
ANNUAL AVERAGE
CONCENTR. NG/L
3.18
3.08
2.46
2.81
1.62
MAXIMUM SAMPLE,
RESULT NG/L
8.38
6.15
6.19
27.5
4.06
includes data up to August 2012
All annual average effluent concentrations are below the allowable mercury concentration of
12 ng/L. In addition, there are no individual sample results greater than the TBEL limit of 47
ng/L. As per Division guidelines for TMDL implementation, no monitoring other than the
three PPA samples will be required, and a mercury minimization plan (MMP) will be added
as a special condition.
Instream Monitoring
The facility monitors upstream and downstream for conductivity, dissolved oxygen (DO), and
temperature. All instream data for 2011 and 2012 were reviewed, including daily DO
instream results, and no problems were noted. Downstream results were not significantly
different from upstream. Additionally, the lowest downstream individual day result for DO
was 6.3 mg/L, which is considerably above the 5.0 mg/L applicable standard. For 2012, DO
summer averages were 7.8 mg/L upstream and 7.6 mg/L downstream. For 2011, the overall
averages were 8.2 mg/L upstream and 8.1 mg/L downstream. No changes in instream
sampling requirements are proposed for this permit term.
Changes from Previous Permit
• The priority pollutant scan requirement was changed from annual to three times during
the current permit term, consistent with Division guidance for major municipal
wastewater treatment facilities.
• A footnote was added to the limit for TRC such that the Division shall consider all
effluent TRC values reported below 50 Ng/L to be in compliance with the permit.
• Due to the lack of reasonable potential to cause exceedances of water quality standards,
limits and monitoring requirements for total cyanide and total nickel were eliminated.
• The new dechlorination system was added to the treatment components list on the
supplement to permit cover sheet.
• In accordance with Division guidelines following the approval of a TMDL for mercury, a
special condition regarding a mercury minimization plan (MMP) was added. Guidelines
for MMP development will be placed on the Division website following a stakeholder
review process. Additionally, limits and monitoring requirements for total mercury were
eliminated.
• The monitoring frequencies for total copper and total zinc were changed to quarterly, in
accordance with division guidelines for action -level parameters.
Fact Sheet
Renewal -- NPDES NCO021024
Page 3

Proposed Schedule of Issuance
Draft Permit to Public Notice: October 24, 2012
Final Permit Scheduled to Issue: December 2012
Permit Expiration Date: April 30, 2017
Fact Sheet Addendum/EPA Comments
The only comments received during the 30-day comment period on the Draft Permit were
from the US EPA (letter dated 2/11/2013). The following section addresses EPA comments
and DWQ responses. Some changes have been incorporated into the Final Permit based
upon these comments.
Ammonia Limits. EPA questioned the basis of the ammonia effluent limits (5.0 mg/I
Summer, Monthly Average, and 13.0 mg/I. Winter, Monthly Average), given that
there is no dilution available in the receiving waterbody. These limits were the same
as in previous permits. Upon further review, DWQ has revised the ammonia limits to
1.0 mg/I (Monthly Average, Summer) and 1.8 mg/I (Monthly Average, Winter) to
reflect NC water quality -based ammonia criteria implemented with no dilution. The
Weekly Average limits represent a multiplier of 3x the Monthly Average limit.
Following discussions with the Permittee, a compliance schedule that will allow for
consultant contracting, design, funding, bidding, and construction has also been
added to the Final Permit in order to comply with the more stringent ammonia limits.
Oil and Grease (O&G) Limit. EPA questioned the basis of the Oil and Grease
effluent limit, a Monthly Average limit of 30 mg/I. As discussed with EPA via email
dated April 4, 2013, it appears that O&G limits placed on POTWs were done several
decades ago, based on input from Regional Offices and BPJ decisions at that time.
There is no basis to change the limits at this time. EPA has not established
secondary limits for O&G, and DWQ is not aware of any complaints from this
discharge pertaining to instream oil/grease. In the same email to EPA dated
4/4/2013, DWQ has offered to take a second look at its O&G permitting practices
over the next year, and as a first step requested EPA assistance per MOA Section
III.B.(2) to provide to NC any technical information on how other Region 4 States or
other EPA Regions are currently permitting for O&G at POTWs, as well as any
permitting guidance documents that address the issue.
Copper and Zinc Limits. EPA commented that copper and zinc showed reasonable
potential to exceed NC Action Levels and that additional explanation is needed. In
NC there are specific regulations governing Action Level parameters. Since the
facility has passed 19 of 20 chronic toxicity tests and demonstrated no biological
effects of the discharge, no permit limits for copper/zinc are deemed necessary in
accordance with NC Action Level regulations per 15A NCAC 2B.0211 (4). However,
the Final Permit will include additional Footnote language to Effluent Sheet A(1) that
clarifies that Quarterly copper/zinc effluent sampling must be done in conjunction
with the Quarterly toxicity testing.
Mercury. EPA recommended that a 12 nq/I weekly average limit for mercury be
added to the Final Permit. Based on the Mercury TMDL Implementation procedures,
effluent data did not show the need for a WQBEL or TBEL. The highest annual
mercury effluent concentration was 3.18 ng/I. Since there were some values > 1
ng/l, and since the facility is > 2MGD, a mercury minimization plan (MMP) was
Fact Sheet
Renewal -- NPDES NCO021024
Page 4

included in the Draft Permit. The MMP language will be updated in the Final Permit
to reflect that the MMP shall be developed within 180 days.
NPDES Unit Contact
If you have questions regarding any of the above information or on the attached permit,
please contact Tom Belnick at [phone] or at [e-mail].
Fact Sheet
Renewal -- NPDES NC0021024 .
Page 5

INPDES/Aauifer Protection Permittina Unit Pretreatment Information Reauest Form
`5eil
Date of
THIS PART
of Roxboro WRF
check applicable PERCS staff:
I- Notify PERCS if LTMP/STMP data we said shot
nunici al renewal
x
I be on DM Rs is not really there, so we can get it ft
you (or NOV P01 W).
- Notify PERCS if you want us to keep a specific
POC in LTMP/STMP so you will have data for ne)
permit renewal.
- Email PERCS draft permit, fact sheet, RPA.
- Send PERCS paper copy of permit (w/o NPDES
boilerplate), cover letter, final fact sheet. Email R
if changes.
new industries
expansion
Speculative limits
stream reclass.
stream relocation
7Q10 chart a
Mh—
I IBRD. CPF. FRB. TAR- Sarah Morrison I
SIUs
PERCS PRETREATMENTSTAFF COMPLETES THIS PART:
Status of Pretreatment Program (check all that apply)
1) facility has no SIUs, does have Division approved Pretreatment Program that is INACTIVE
2) facility has no SIUs, does not have Division approved Pretreatment Program
3) facility has SIUs and DWQ approved Pretreatment Program (list "DEW if program still under development)
3a) Full Program with LTMP
3b) Modified Program with STMP
4) additional conditions regarding Pretreatment attached or listed below STMP time frame:
Most recent:
Flow, MGD Permitted Acual Time eriod for Actual Next C cle:
Industrial ,
Uncontrollable n/a
POC In
LTMP/
S
Parameter of
Concern FCC)
Check List
POC due to
NPDES/ Non.
Disch Permit
Limit
Required
b EPA'
Required
by 503
Sludge—
POC due
to SIU''
POTW POC
(Explain
below)'***
STMP
Effluent
FrogF
LTMP
(fluent
BOD
4
M
TSS
4
Q M
NH3
4
Q M
V
Arsenic
✓
4
Q M
Cadmlum*,, ;• . Y
✓
4
Q M
Chromiur*
4
Q M
Copper,_. -
✓
t/
4
Q M
Cyanide
✓
4
Q M
Lead '''
✓
4
Q M
Mercury
4
Q M
Molybdenum
►/
4
Q M
Nickel'..
4
Q M
Silver
4
Q M
Selenium
4
Q M
Zinc.
4
Q M
Total Nitrogen
4
Q M
Phosphorus
4
Q M
4
Q M
4
Q M
4
Q M
4 .
Q M
Q = Quarterly
y
all data
YES
NO (attach ata)
data ins readsh
YES email to writer
NO
Nays in the.LTMP/STMP j " Only in LTMP/STMP if sludge land app or composte (dif POCs for incinerators)
Only in LTMP/STMP while SIU still discharges to POTW "" Only in LTMP/STMP when pollutant is still of concern to POTW
�7M P k,�4 . A*lz
MEN
Pretreatment request font (2).x1s
Revisetl: July 24, 2007
oc�

REASONABLE POTENTIAL ANALYSIS
- /VO, L/M 17-5 OR Me)Alr7-6211/&
13
Mercury
Date Data BDL=1/2DL Results
1 ' 4.26 4.26 Sid Dev.
2 3.56 3.56 Mean
3 3.34 3,34 C.V.
4i 4.34 4.34 n
51 4.34 4.34
63.95 3.95 Mult Factor=
7, 2.94 2.94 Max. Value
8 " 3.29 3.29 Max. Fred Cw
9 3.06 3.06
10l
ill 4.3 4.3
1V 4.21 4,21
13: 3.42 3.42
14; - - 1.57 1.57
15 - 1.73 1.73
16, 4.91 4.91
17' 2.19 2.19
18' 1.61 1.61
19� 1.97 1.97
201
4.58 4.58
211 i 6.15 6,15
22� 5.43 5A3
23
241
251 3.95 3.95
261 3.83 3.83
27, 5.52 5.52
28 2.98 2,98
291. 12PI/2009 3.52
301 9/1/2010. ;i; 1.39
31, 6/1/20114u i 2.01
321 2.44 2A4
33
34i 3,81 3.81
35; 2.94 2.94
36
37i - 4.33 4.33
381 5.34 5.34
39 4.11 4.11
401 4.04 4.04
41;__. _.. .;_:._i:,];.`' 2.12 2.12
a NO ANNUAL f{ U2,EGE rt•
2.5544
2.58360.9887 I1�� Vt• �� h_ //
156
1.43 275 ng/L NV lNprvru�A�
39.3 ng/L 100o iF q -7 0 L
RFrrt?- rU r-,4cz- sff6C-7•
2011 RPA-Freshwt., data
- i - 10/20/2012

2012 North Carolina 303(d) List -Category 5
> 22-584-(1.4) South Hyco Creek (Lake From backwaters of take Roxboro to dam at take Roxboro 493.6 FW Acres WS-II,e;HQW 5
Roxboro)
5 Impaired Aquatic Life Standard Violation Chlorophyll a 2012
> 22-58-12-6a Marlowe Creek From source to Mitchell Creek 6.6 FW Miles C 5
5 Impaired Aquatic Life Fair Bioclassification Ecological/biological Integrity Benthos 1998
> 22.58-12.6b Marlowe Creek From Mitchell Creek to Storys Creek
4.5 MMiles C
5 Impaired
Aquatic Life
Standard Violation
Copper
2008
5 Impaired
Aquatic Life
Standard Violation
Zinc
2008
5 Impaired
Aquatic Life
Fair Bioclassification
Ecological/biological Integrity Benthos
2012
5
Roanoke River Basin 8-digit Subbasin 03010106 Lake Gaston -Roanoke River
> 23-10.2 Newmans Creek (Little From source to Smith Creek 6.1 FW Miles C 5
Deep Creek)
5 Impaired Aquatic Life Fair Bioclassification Ecological/biological Integrity Benthos 2008
> 23-10c Smith Creek From SR1208 to North Carolina -Virginia State Line 3.0 FW Miles C 5
5 Impaired Aquatic Life Standard Violation Turbidity 2012
Friday, August 24, 2012 Approved by EPA August 10, 2012 Page 94 of 170

(�oX8oko Pmks
o(L &Gf2c-A-�C
O&G 2011-12 mg/L
5. CX�S(`(NG MiT 30
5.
5. recf pAw-p- ..vim �v lea.✓e ivi YJC!'Wtl'F' �'(5 I5
8.3
5.
6.6
9A
5.6
18.3
95.
5.
6.7
72.7
5.
5.
5.2
5.
5.
5.
5.
5.
5.
5,
5,
5.
5.
5.
5.
5.
5.
5.
5.3
5.
5.5
5.
8.1
5.
5.
5.
5.
5.
6.6
5.
5.
5.
5,
5.
5.3
19.
5.

October 28, 2011
Mr. Dina Sprinkle
NC DENR DWQ/NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
City of Roxboro
Subject: NPDES Permit Renewal
City of Roxboro WWTP
NPDES NCO021024
Person County
Dear Mrs. Sprinkle,
The NPDES permit for the City of Roxboro's WWTP expires on May 31, 2012.
As required, we are hereby submitting the application for permit renewal of NPDES
NCO021024.
The plant is a 5.0 MGD extended aeration plant, which discharges to Marlowe's
Creek in the Roanoke River Basin. Synagro Central land applies the biosolid residuals
generated from the operation of the WWTP per our land application permit W00021826.
The following changes were made to the Roxboro WWTP treatment process
during the 2007-2012 permit cycle.
1. As required by permit, the Roxboro WWTP effluent is continually de-
,.t,lnn ntPrl with Calcium Thiosulfate (Captor).
if any other information is needed for the permit renewal, please contact Derek
Clayton at336-599-8232.
NOV 0 7 2011
�Respectfully Submitted,
Thomas S. Warren, Jr.
Assistant City Manager
l05 S. LAMAR STREET • P. O. BOX 126 • ROSBORO. NORTH CAPOLINA 27573 • (336) 09-3116 • PAX [phone].
ry .cityofroxl)oro.cam

i
FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro WVVFP, NCO021024
Renewal
Roanoke
FORM
2A
MRD S'
11-01- WAPPLICA�TIONiOVERVIEW :
NPDES
�_
��"��'. 'ti:xr,,
.
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 8. 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.B. 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 2 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 wat States and meets
one or more of the following criteria must complete Part D (Expanded Effluent toData): p
1. Has adesign flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program (or has one in place), or NOV 0 % 20113.
]WTes
Is othenvise required by the permitting authority to provide the information.
DENR•W��11T�gQU�g�,E. Toxicity Testing Data. A treatment works that meets one or more of the following criteria m st d201 tgOlgRL�t�A!'PAYVng
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 RC RAICERCLA 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 RCRAICERCLA 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 an average 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).
4
ALCAPPLICANTS MUST COMPLETE"PART C (CERTIFICATION)

FACILITY NAME ANO PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro WWTP, NCO021024
Renewal
Roanoke
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 Roxboro WWTP
Mailing Address PO Box 128
Roxboro NC 27573
Contact Person Thomas S. Warren Jr.
Title Assistant City Manager
Telephone Number [phone]
Facility Address 902 Cavel-Chub Lake Rd.
(not P.O. Box) Roxboro NC 27574
A.2. Applicant Information. If the applicant is different from the above, provide the following:
Applicant Name
Mailing Address
Contact Person
Title
Telephone Number ( 1
Is the applicant the owner or operator (or both) of the treatment works?
x owner ❑ operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
x facility 0 applicant
A-3. Existing Environmental Permits. Provide the permit number of any existing environmental permits that have been issued to the treatment works
(include state -issued permits).
NPDES N00021024 PSD
UIC Other W00021826 (Land Apo.)
RCRA Other NCG710000 (Stormwater)
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
City of Roxboro 8387 Separate Municipal
Unincorporated Areas of Co. 236 Separate Municipal
Total population served

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Roxboro WWiP, NCO021024 I Renewal Roanoke
A.5. 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 x 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 pedod
with the 121" month of 'this year' occurring no more than three months prior to this application submittal.
a. Design flow rate 5.0 mgd
b. Annual average daily flow rate
Two Years Ago Last Year This Year
1.60
C. Maximum daily flow rate 8.62 12.03 6.51
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.
x 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.? x 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
i1. Discharges of untreated or partially treated effluent
iii. Combined sewer overflow points
iv. Constructed emergency overflows (prior to the headworks)
V. Other N/A
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:
Location:
Number of acres:
Annual average daily volume applied to site: N/A
Is land application ❑ continuous or ❑ intemtittent?
d. Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works?
N/A
N/A
x No
N/A mgd
❑ Yes x No
mgd
❑ Yes x No

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro WVVfP, NCO021024
Renewal
Roanoke
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).
N/A
If transport is by a parry other than the applicant, provide:
Transporter Name N/A
Mailing Address N/A
N/A
Contact Person N/A
Title N/A
Telephone Number (N/A)
For each treatment works that receives this discharge, provide the following:
Name N/A
Mailing Address N/A
N/A
Contact Person N/A
Title N/A
Telephone Number (N/A)
If known, provide the NPDES permit number of the treatment works that receives this discharge N/A
Provide the average daily Bow rate from the treatment works into the receiving facility. N/A
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
x No
If yes, provide the following for each disposal method:
Description of method (including location and size of site(s) if applicable):
N/A
Annual daily volume disposed by this method: N/A
Is disposal through this method ❑ continuous or ❑ intermittent?

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Roxboro WWTP, NCO021024 Renewal Roanoke
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
b. Location
(City or town, 4 applicable) (Zip Code)
(County)
(State)
36"26'41"N
78°58'47'W
(Latitude)
(Longitude)
C. Distance from shore (if applicable)
N/A
ft.
d. Depth below surface (if applicable)
N/A
ft.
e. Average daily flow rate
1.60
mgd
I. Does this outtall have either an intermittent or a periodic discharge?
❑ Yes
x No (go to A.9.g.)
If yes, provide the following information:
Number f times per year discharge occurs:
N/A
Average duration of each discharge:
N/A
Average flow per discharge:
N/A
mgd
Months in which discharge occurs:
N/A
g. Is outfall equipped with a diffuser?
❑ Yes
x No
A.10. Description of Receiving Waters.
a. Name of receiving water Madowes Creek then into Hvco River, then into Kerr Reservoir
b. Name of watershed (if known) Hvco River Watershed
United States Soil Conservation Service 14-digit watershed code (if known): 03010104062020
C. Name of State Management/River Basin (if known): Roanoke River Basin
United States Geological Survey 8-digit hydrologic cataloging unit code (if known): 03010104
d. Critical low flow of receiving stream (if applicable)
acute 0.0 (7Q10) cfs chronic 99.87 (instream Waste Conc.) cfs
e. Total hardness of receiving stream at critical low flow (if applicable): mg/I of C3CO3

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro WWTP, NCO021024
Renewal
Roanoke
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
❑ Primary ❑ Secondary
x Advanced ❑ Other. Describe:
b. Indicate the following removal rates (as applicable):
Design BOD5 removal or Design CBOD5 removal 95
Design SS removal 85
Design P removal N/A °b
Design N removal N/A °b
Other NH,-N 91 °b
C. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe:
Chlorination
If disinfection is by chlorination is dechlorinalion used for this outfall? x 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 QA/QC 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: 001
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
PARAMETER
Units
Value
Units
Number of Samples
pH (Minimum)
s.u.
365
PH (Maximum)
S.U.
Flow Rate
r6.51
MGD
1.60
MGD
Temperature (Winter)
Celsius
11.2
Celsius
109
Temperature (Summer)
Celsius
21.8
Celsius
147
' 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-
Conc.
TUmts
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN
20.9
rn /l
8.8
m /I
249
405.1
2m /l
CBODS
NIA
N/A
N/A
N/A
N/A
N/A
NIA
DEMAND (Report one)
FECAL COLIFORM
4100
#/100 ml
10.3
#/m00
249
124
# per 100 ml
TOTAL SUSPENDED SOLIDS(TSS)
13.7
m /I
2.1
m /I
249
160.2
1m /l
ENO OF PART A ;
•REFER TO THE APPLICATION OVERVIEW. (PAGE !)TO, DETERMINE WHICH OTHER PARTS
:OF FORM 2A YOU MUST. COMPLETE m

FACILIN NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro WWTP, NCO021024
Renewal
Roanoke
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 z 0.1 mgd must answer questions 8.1 through B.6. All others go to Part C (Certification).
B.1. Inflow and Infiltration. Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration.
119,000 gpd
Briefly explain any steps underway or planned to minimize inflow and infiltration.
The City of Roxboro has spent approximately 1.7 million dollars in efforts to reduce inflow and infiltration from 2005-2011 As a
result significant reductions in the # of SSO's have occurred. The city is cur entlV funding sewer and stormwater mapping
however there are plans for additional Inflow and Infiltration work in coming budgets.
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.
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.
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.
e. Any areas where the sewage sludge produced by the treatment works is stored, treated, or disposed.
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 description of the diagram.
BA. 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 ❑ No
If yes, list the name, address, telephone number, and status of each contractor and describe the contractor's responsibilities (attach additional
pages if necessary).
Name: SVnagro Central
Mailing Address: 284 Boger Road
Mocksville NC 27028-7619
Telephone Number: (336-766-8652)
Responsibilities of Contractor: Land application of residuals ORC and residual analysis except for vector attraction
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.)
a. List the ouffall number (assigned in question A.9) for each outfall that is covered by this implementation schedule.
NA
b. Indicate whether the planned improvements or implementation schedule are required by local, State, or Federal agencies.
0 Yes ® No

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
RoxboroWVVfP, NCO021024
Renewal
Roanoke
C. If the answer to 8.5.b is "Yes," briefly describe, including new maximum daily inflow rate (if applicable).
NA
d. Provide dates imposed by any compliance schedule or any actual dates of completion for the implementation steps listed below, as
applicable. For improvements planned independently of local, State, or Federal agencies, indicate planned or actual completion dates, as
applicable. Indicate dates as accurately as possible.
Schedule Actual Completion
Implementation Stage MM/DD/YYYY MM/DD/YYYY
- Begin Construction NA/ / NAI /
- End Construction NA/ I NA/
- Begin Discharge NA/ / NA/ /
- Attain Operational Level NA/ I NA/ /
e. Have appropriate permits/clearances concerning other Federal/State requirements been obtained? ❑ Yes ❑ No
Describe briefly. NA
8.6. EFFLUENT TESTING DATA (GREATER THAN 0A 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 outfall 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
QA/QC requirements of 40 CFR Part 136 and other appropriate
using 40 CFR Part 136 methods. In addition, this data must comply with
for methods for analytes not addressed by 40 CFR Part 136. At a minimum effluent testing data must be
QA/QC requirements standard
based on at least three pollutant scans and must be no more than four and on -half years old.
Outfall Number. 001
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
DISCHARGE
-
ANALYTICAL
MLIMDL
POLLUTANT
METHOD
Number of
Conc.
Units
Conc.
Units
Samples
CONVENTIONAL AND NON CONVENTIONAL
COMPOUNDS
AMMONIA (as N)
6.06
mg/I
0.27
mg/l
249
EPA 350.1
0.2 mgll
CHLORINE (TOTAL
46
ugll
2.6
ugll
249
EPA 330.5
15 ugll
RESIDUAL, TRC)
DISSOLVED OXYGEN
13.1
mg/I
8.1
mgll
251
EPA 360.1
0.01 mgll
TOTAL KJELDAHL
1.88
mgll
1.25
mg/I
14
4500 NH3 E
0.2 mg/I
NITROGEN (TKN)
NITRATE PLUS NITRITE
14.9
mg/1
9.41
mg/I
14
4500 NO3 E
0.05 mgll
NITROGEN
OIL and GREASE
72.7
mgll
3.5
mgll
64
EPA 1664A
6 mg/1
PHOSPHORUS (Total)
4.21
mgll
1.95
mg/I
14
4500 P E
0.05 mg/I
TOTAL DISSOLVED SOLIDS
396
mg/I
276
mg/I
3
EPA 160A
10 mgll
(TDS)
OTHER
OVERVIEW (PAGE 1) TO, DETERMINE WHICH OTHER, PARTS
REFER TO THE APPLICATION
FORM.2A YOU MUST COMPLETE
;OF

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro WWTP, NCO021024
Renewal
Roanoke
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:
® Basic Application Information packet Supplemental Application Information packet:
® Part D (Expanded Effluent Testing Data)
® Part E (Toxicity Testing: Biomonitonng Data)
® Part F (Industrial User Discharges and RCRAJCERCLA Wastes)
❑ 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 Thomas S. Warren Jr.
Signature
Telephone number [phone]
Date signed I', Z-1
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

FACILITY NAME AND PERMIT NUMBER:
City of Roxboro, NCO021024
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Roanoke
SUPPLEMENTAL APPLICATION 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 ingot and Pretreatment Works. If the treatment works has a design flow greater than or equal to 1.0 mgd or it has (or is required
to have) a pretreatment program, or is otherwise required by the permitting authority to provide the data, then provide effluent testing data for the following
pollutants. Provide the indicated effluent testing information and any other information 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 analyses conducted using 40 CFR Part 136 methods. In addition, these 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. Indicate in the blank rows provided below
any data you may have on pollutants not specifically listed in this form. At a minimum, effluent testing data must be based on at least three pollutant
scans and must be no more than four and one-half years old.
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/MOL
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
.Samples
METALS (TOTAL RECOVERABLE), CYANIDE, PHENOLS, AND HARDNESS.
ANTIMONY
.006
MgII
N/A
N/A
.007
Mg/I
N/A
N/A
16
EPA 200.8
.003 mg/I
ARSENIC
<.010
Mgll
N/A
N/A
<.010
Mg/I
N/A
N/A
11
EPA 200.8
.01 mg/I
BERYLLIUM
<.002
Mg/1
NIA
N/A
<.002
Mg/I
NIA
N/A
3
EPA 200.8
.002 mg/I
CADMIUM
<.002
Mg/I
NIA
N/A
<.002
Mg/I
N/A
N/A
10
EPA 200.8
.0002 mgll
CHROMIUM
.006
Mg/I
N/A
NIA
.002
Mg/I
N/A
N/A
11
EPA 200.8
.005 mgll
COPPER
.011
Mg/1
N/A
N/A
.008
Mg/I
N/A
N/A
10
EPA 200.8
.003 mg/I
LEAD
<.005
Mgt l
N/A
N/A
<.005
Mg/I
N/A
N/A
11
EPA 200.8
.01 mg/I
MERCURY
3.52
Ng/I
N/A
NIA
2.31
Ng/I
N/A
N/A
57
EPA 1631
0.2 ugh
NICKEL
<,010
Mg/1
N/A
N/A
<.010
Mgt I
N/A
N/A
59
EPA 200.8
.01 mgll
SELENIUM
<.010
Mg/I
N/A
N/A
<.005
Mg/I
N/A
N/A
10
EPA 200.8
.01 mg/I
SILVER
<.005
Mg/I
N/A
N/A
<.005
Mg/I
N/A
N/A
10
EPA 200.8
.005 mg/I
THALLIUM
<.001
Mg/I
N/A
N/A
<.001
Mg/I
NIA
NIA
3
EPA 200.8
.001 mg/I
ZINC
.066
Mg/1
N/A
N/A
.055
Mgt]
NIA
N/A
44
EPA 200.8
.02 mg/I
CYANIDE
<.005
Mg/1
N/A
N/A
<.005
Mgt I
NIA
N/A
54
LCO10-204-00-1-x
.01 mg/I
TOTAL PHENOLIC
COMPOUNDS
10
Ugll
N/A
NIA
5A7
Ugll
N/A
N/A
3
EPA 420.4
.005 mg/I
HARDNESS (as CaCO3)
52.1
Mg/I
NIA
N/A
44.7
Mgt I
NIA
N/A
3
SM 2340E
2 mgll
Use this space (or a separate sheet) to provide information on other metals requested by the permit writer

'FACILITY NAME AND PERMIT NUMBER:
Roxboro WWTP, NCO021024
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Roanoke
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
[NZumber
VOLATILE ORGANIC COMPOUNDS
ACROLEIN
<60
Ug/I
NIA
N/A
<50
Ug/I
NIA
NIA
3
EPA 624
60 ug/I
ACRYLONITRILE
<50
Ug/1
NIA
N/A
<50
Ugh
N/A
N/A
3
EPA 624
50 ug/I
BENZENE
<5
Ug/I
N/A
N/A
<5
Ugll
N/A
N/A
3
EPA 624
5 ug/I
BROMOFORM
<5
Ug/I
N/A
NIA
<S
Ug/I
N/A
NIA
3
EPA 624
10 ug/I
CARBON
TETRACHLORIDE
<5
Ugll
N/A
N/A
<5
Ug/I
N/A
N/A
3
EPA 624
5 ug/1
CHLOROBENZENE
<5
Ug/I
N/A
NIA
<5
Ug/I
NIA
NIA
3
EPA 624
Sug/I
CHLORODIBROMO-
METHANE
<5
Ug/I
N/A
N/A
<5
Ug/I
N/A
N/A
3
EPA 624
5 ug/I
CHLOROETHANE
<5
Ug/1
NIA
N/A
<5
Ug/I
NIA
N/A
3
EPA 624
10 ug/I
2-CHLOROETHYLVINYL
ETHER
<10
Ug/I
N/A
NIA
<10
Ug/I
N/A
N/A
3
EPA 624
10 ug/I
CHLOROFORM
11
Ug/I
N/A
NIA
8.07
Ug/I
NIA
NA
3
EPA 624
5 ug/1
DICHLOROBROMO-
METHANE
<5
Ug/1
N/A
N/A
<5
Ug/I
NIA
N/A
3
EPA 624
5ug/I
1,1-DICHLOROETHANE
<5
Ug/I
NIA
"<5U91I
N/A
3
EPA 624
5 ugll
1,2-DICHLOROETHANE
<5
Ug/1
N/A
N/A
3
EPA 624
5 ug/I
TRANS-I,2-DICHLORO-
ETHYLENE
<5
Ug/I
N/A
NIA
<5
Ug/I
N/A
NIA
3
EPA 624
5 ug/I
1,1-DICHLORO-
ETHYLENE
<5
Ug/I
N/A
NIA
<5
Ugll
N/A
NIA
3
EPA 624
5 ug/I
1,2-DICHLOROPROPANE
<5
Ug/I
NIA
N/A
<5
Ug/I
NIA
N/A
3
EPA 624
5 ug/I
1,3-DICHLORO-
PROPYLENE
<5
Ug/I
NIA
N/A
<5
Ug/I
N/A
N/A
3
EPA 624
5 ug/I
ETHYLBENZENE
<5
Ug/I
N/A
NIA
<5
Ug/I
N/A
NIA
3
EPA 624
10 ugll
METHYL BROMIDE
<10
Ug/I
NIA
N/A
<10
Ug/I
N/A
NIA
3
EPA 624
5 ug/I
METHYL CHLORIDE
<5
Ug/I
NIA
N/A
<5
Ug/I
N/A
NIA
3
EPA 624
5 ug/I
METHYLENE CHLORIDE
<5
Ug/I
NIA
N/A
<5
U9/1
NIA
NIA
3
EPA 624
5 ug/I
1,1,2,2-TETRA-
CHLOROETHANE
<5
Ugll
N/A
NIA
<5
Ug/I
N/A
NIA
3
EPA 624
5 ug/I
TETRACHLORO-
ETHYLENE
<5
Ug/I
N/A
N/A
<5
Ug/I
NIA
N/A
3
EPA 624
5 ug/I
TOLUENE
<5
Ug/I
NIA
N/A
<5
Ug/I
NIA
NIA
3
EPA 624
10 ug/I

' FACILITY NAME AND PERMIT NUMBER:
Roxboro WWTP, NCOO21O24
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Roanoke
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
1,1,1-
TRICHLOROETHANE
<10
Ugll
N/A
N/A
<t0
Ugll
N/A
NIA
3
EPA 624
<10 ug/I
TRICHLOROETHANE
<5
Ug/1
N/A
NIA
<5
Ug/I
NIA
N/A
3
EPA 624
<5 ug/I
TRICHLOROETHYLENE
<6
Ug/I
NIA
N/A
<5
Ug/1
NIA
N/A
3
EPA 624
<5 ug/I
VINYL CHLORIDE
<5
Ug/I
NIA
N/A
<5
Ugll
N/A
NIA
3
EPA 624
<5 u9/1
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
<10
Ugh
N/A
N/A
<10
Ug/I
NIA
NIA
3
EPA 625
<10 ugll
2-CHLOROPHENOL
<10
Ug/I
NIA
NIA
<10
Ug/1
NIA
N/A
3
EPA 625
<10 ug11
2,4-DICHLOROPHENOL
<10
Ugll
N/A
N/A
<10
Ug/I
N/A
NIA
3
EPA 625
<10 ug/I
2,4-DIMETHYLPHENOL
<10
Ug/I
N/A
N/A
<10
Ug/I
N/A
NIA
3
EPA625
<10 ug11
4,6-DINITRO-O-CRESOL
<50
Ug/I
N/A
NIA
<50
Ug/I
NIA
N/A
3
EPA625
<50 ugll
2,4-DINITROPHENOL
<50
Ug/I
N/A
N/A
<60
Ug/I
N/A
NIA
3
EPA625
<50 ug/I
2-NITROPHENOL
<10
Ug/I
N/A
N/A
<10
Ug/1
WA
N/A
3
EPA 625
<10 ugll
4-NITROPHENOL
c10
Ug/1
N/A
N/A
<10
Ugll
N/A
N/A
3
EPA 626
<10 ugll
PENTACHLOROPHENOL
<30
Ug/I
N/A
N/A
<30
Ug/I
N/A
N/A
3
EPA 625
<30 ug/I
PHENOL
<10
Ug/l
N/A
NIA
<10
Ug/1
N/A
NIA
3
EPA625
<10 ugll
2,4,6- OROPHENOL
TRICHLUse
<t0
Ug/I
N/A
N/A
<10
Ugll
N/A
NIA
3
EPA 625
<10 ug/1
this space (or a separate sheet) to provide information on other acid -extractable compounds requested by the permit writer
BASE -NEUTRAL COMPOUNDS
ACENAPHTHENE
<10
Ug/I
N/A
NIA
<10
Ug/I
N/A
N/A
3
EPA 625
<10 ug/1
ACENAPHTHYLENE
<10
Ug/I
NIA
N/A
<t0
Ug/I
NIA
NIA
3
EPA625
<10 ugh
ANTHRACENE
<10
Ug/I
N/A
N/A
<10
Ug/I
N/A
N/A
3
EPA 625
<10 ug/I
BENZIDINE
<50
Ug/I
NIA
N/A
<50
Ug/I
NIA
N/A
3
EPA626
<50 ugll
BENZO(A)ANTHRACENE
<10
Ug/I
N/A
N/A
<10
Ug/I
N/A
NIA
3
EPA 625
<10 ugll
BENZO(A)PYRENE
<10
Ug/I
NIA
N/A
<10
Ug/l
NIA
N/A
3
EPA 625
<10 ug/I

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro WWTP, NC0021024
Renewal
Roanoke
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
ML/MDL
Number
POLLUTANT
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
of
METHOD
Samples
3,4 BENZO-
<10
Ug/I
N/A
N/A
<10
Ugh
NIA
N/A
3
EPA 625
<10 ug/I
FLUORANTHENE
BENZO(GHI)PERYLENE
<10
Ug/I
N/A
NIA
<10
Ug/I
N/A
N/A
3
EPA 625
<10 ugll
BENZO(I)
<10
Ug/I
NIA
N/A
<10
Ug/I
N/A
N/A
3
EPA625
<10 ug/I
FLUORANTHENE
BIS (2-CHLOROETHOXY)
<10
Ug/I
N/A
NIA
<10
Ug/I
N/A
N/A
3
EPA 625
<10 ug/I
METHANE
BIS (2-CHLOROETHYL)-
<10
Ugll
N/A
NIA
<10
Ugll
N/A
N/A
3
EPA625
<10 ug/I
ETHER
BIS (2-CHLOROISO-
<10
Ug/I
NIA
N/A
<10
Ug/I
NIA
N/A
3
EPA625
<10 ug/I
PROPYL)ETHER
BIS (2-ETHYLHEXYL)
c10
Ug/l
NIA
N/A
<10
Ug/I
N/A
N/A
3
EPA625
<10 ug/I
PHTHALATE
4-BROMOPHENYL
<10
Ugll
NIA
NIA
<10
Ug/1
NIA
N/A
3
EPA625
<10 ugll
PHENYLETHER
BUTYL BENZYL
<10
Ugll
N/A
N/A
<10
Ugll
N/A
NIA
3
EPA625
<10 ugll
PHTHALATE
2-CHLORO-
<10
Ug/1
NIA
NIA
<10
Ugll
N/A
N/A
3
EPA625
<10 ug11
NAPHTHALENE
4-CHLORPHENYL
<10
Ug/I
N/A
N/A
<10
Ug/I
N/A
N/A
3
EPA625
<10 ug/1
PHENYLETHER
CHRYSENE
<10
Ug/I
N/A
N/A
<10
Ug/I
N/A
N/A
3
EPA625
<10 ug/l
DI-N-BUTYL PHTHALATE
<10
Ug/I
NIA
N/A
<10
Ug/1
N/A
N/A
3
EPA 626
<10 ug/I
DI-N-OCTYL PHTHALATE
<10
Ug/I
NIA
N/A
<10
Ugll
NIA
N/A
3
EPA625
<10 ug/I
DIBENZO(A,H)
<10
Ug/I
NIA
NIA
<10
Ugll
N/A
NIA
3
EPA625
<10 ug/I
ANTHRACENE
1,2-DICHLOROBENZENE
<10
Ug/I
N/A
NIA
<10
Ugli
N/A
NIA
3
EPA625
<10 ug/I
1,3-DICHLOROBENZENE
<10
Ugll
N/A
N/A
<10
Ug/l
N/A
NIA
3
EPA 625
00 ug/l
1,4-DICHLOROBENZENE
<10
Ug/I
N/A
N/A
<10
Ug/1
NIA
N/A
3
EPA 625
<10 ug/I
3,3-DICHLORO-
<20
Ug/I
N/A
N/A
<20
Ug/I
N/A
N/A
3
EPA 626
<10 ug/I
BENZIDINE
DIETHYL PHTHALATE
<10
Ug/I
N/A
N/A
<10
Ugll
N/A
NIA
3
EPA 625
00 ug/I
DIMETHYL PHTHALATE
<10
Ug/I
N/A
N/A
<10
Ug/I
N/A
N/A
3
EPA625
<10 ugll
2,4-DINITROTOLUENE
<10
Ugll
N/A
N/A
<10
Ug/1
NIA
N/A
3
EPA625
<10 ug/I
2,6-DINITROTOLUENE
<10
Ugll
NIA
N/A
<10
Ug/I
N/A
N/A
3
EPA 625
<10 ug/l
1,2-DIPHENYL-
<10
Ug/1
N/A
NIA
<10
Ug/I
T N/A
JNj
3
EPA625
<10ug11
HYDRAZINE

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro WWTP, NCO021024
Renewal
Roanoke
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
MUMDL
Number
POLLUTANT
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
of
METHOD
Samples
FLUORANTHENE
<10
Ugll
N/A
NIA
<10
Ug/I
NIA
NIA
3
EPA 625
<10 ugll
FLUORENE
<10
Ug/I
NIA
N/A
<10
UgII
NIA
NIA
3
EPA 625
<10 ug/I
HEXACHLOROBENZENE
<10
Ug/I
N/A
NIA
<10
Ug/I
N/A
NIA
3
EPA 625
<10 ug/I
HEXACHLORO-
<10
Ug/1
N/A
NIA
<10
Ug/I
NIA
NIA
3
EPA 625
<10 ug/I
BUTADIENE
HEXACHLORCCYCLO-
<10
Ug/I
N/A
NIA
<10
Ug/I
NIA
NIA
3
EPA 625
<10 ugll
PENTADIENE
HEXACHLOROETHANE
<10
Ug/I
NIA
N/A
<10
Ug/I
NIA
NIA
3
EPA 625
<10 ug/I
INDENO(1,2,3-CD)
<10
UgII
NIA
N/A
<10
UgII
N/A
N/A
3
EPA 625
<10 ugh
PYRENE
ISOPHORONE
<10
Ug/I
N/A
N/A
<10
Ug/I
N/A
NIA
3
EPA 625
<10 UgII
NAPHTHALENE
<10
Ug/I
N/A
NIA
<10
Ug/I
N/A
NIA
3
EPA 625
<10 UgII
NITROBENZENE
<10
Ug/I
NIA
NIA
<10
Ugll
N/A
N/A
3
EPA 625
<10 UgII
N-NITROSODI-N.
<20
Ug/I
NIA
N/A
<20
Ug/I
NIA
N/A
3
EPA 625
<20 ugll
PROPYLAMINE
N-NITROSODI-
<10
UgII
NIA
N/A
<10
Ug/I
N/A
N/A
3
EPA 625
<10 ug/I
METHYLAMINE
N-NITROSODI-
<20
UgII
N/A
N/A
<20
Ug/I
N/A
N/A
3
EPA 625
<20 ug/I
PHENYLAMINE
PHENANTHRENE
<10
Ug/1
NIA
N/A
<10
Ug/1
NIA
NIA
3
EPA 626
<10 ugll
E
<10
Ug/I
N/A
N/A
<10
Ug/1
NIA
N/A
3
EPA 625
<10 ug/I
F
<20
UgII
NIA
N/A
<10
Ug/I
N/A
N/A
3
EPA 625
<10 ugll
OROBENZENE
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.
TO THE.APPOC, ATION OVERVIEW (PAGE.1) TO DETERMINE WHICH OTHER PARTS.
REFER
' FORM 2A YOU MUST COMPLETE
$OF

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro WWTP, NCO021024
Renewal
Roanoke
Chronic:
NOEC
%
%
%
IC25
%
%
%
Control percent survival
%
Other (describe)
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Was reference toxicant test within
acceptable bounds?
What date was reference toxicant test
run (MWDD/YYYY)?
Other (describe)
E.3. Toxicity Reduction Evaluation. Is the treatment works involved in a Toxicity Reduction Evaluation?
❑ Yes ® No If yes, describe: N/A
EA. 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.
06/05/2007 09/12'2007 12/05/2007 03/12/2008 06/11/2008 09/17/2008 1.2/10/2008 03/11/2009,
Date submitted:
06/03/2009 09/02/2009 12/07/2009 03/03/2010 06/09/2010 09/17/2010 12/10/2010 03/08/2011 04/12/2011 05/04/2011
06/09/201109/12/2011 (MM/DD/YYYY)
Summary of results: (see instructions)
Chronic toxicity (Ceriodaphnial pass/fail test at 90%were performed on the above dates from samples collected at pipe
001 All test passed except 3/8/2011 Multiple concentration toxicity test were performed in 04/2011 & 05/2011. Both
follow-up test were pass and both were >100e/ Second species testing (fathead minnow) was done along with the
cerioda hnia for the months of 09/2010 12/2010 03/2011 04/2011 & 06/201land summaries are attached to this
application.
;END OF PART E. `•
APPLICATION OVERVIEW (PAGE1) TO DETERMINE,WHICH OTHER PARTS
REFER TO THE ,
FORM 2A YOU MUST COMPLETE.:
.OF

'FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro WWTP, NCO021024
Renewal
Roanoke
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, or other remedial wastes must
complete part F.
GENERAL INFORMATION:
F.1. Pretreatment program. Does the treatment works have, or is subject to, an approved pretreatment program?
® Yes ❑ No
F.2. Number of Significant Industrial Users (SIUs) and Categorical Industrial Users (CIUs). Provide the number of each of the following types of
industrial users that discharge to the treatment works.
a. Number of non -categorical SIUs. 1
b. Number of CIUs. i
SIGNIFICANT INDUSTRIAL USER INFORMATION:
Supply the following information for each SIU. If more than one SIU discharges to the treatment works, copy questions F.3 through F.8 and
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: EXter r SytemsInc.d/b/a Owens Corning Metal Systems
Mailing Address: US 501 South
Roxboro NC 27573
F.A. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Aluminum coil stock is received rolled to a specific gauge annealed tension -leveled Painted and formed into aluminum building products
F.S. 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): Trim coil Painted aluminum coil prefabricated aluminum building Products
Raw material Is): Aluminum coil pants
F.6. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (gpd) and whether the discharge is continuous or intermittent.
10242 gpd (xxxxx continuous or intermittent)
b. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
3200 gpd (xxxxx 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 ❑ No
If subject to categorical pretreatment standards, which category and subcategory?
40 CFR 465 & 467

SIGNIFICANT INDUSTRIAL USER INFORMATION:
Supply the following information for each SIU. If more than one SIU discharges to the treatment works, copy questions F.3 through F.8 and
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:
FA Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Manufactures parts for the automotive industry
F.S. Principal Product(s) and Raw Malerial(s). Describe all of the principal processes and raw materials that affect or contribute to the SI U's
discharge.
Principal product($): Automotive engine lifters and valve actuators
Raw material(s): Steel rod stock oils and petroleum solvents aqueous cleaners
F.6. Flow Rate.
a. Process wastewater Flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (gpd) and whether the discharge is continuous or intermittent.
5000 gpd (xxxxx continuous or intermittent)
b. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
gpd (xxxxx 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 ® No
If subject to categorical pretreatment standards, which category and subcategory?
F.B. 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?
❑ Yes ® No If yes, describe each episode.

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Roxboro VUWTP, NCO021024
Renewal
Roanoke
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?
❑ 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?
❑ Yes ® No (go to F.12)
F.10. Waste transport. Method by which RCRA waste is received (check all that apply):
❑ Truck ❑ 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
N/A N/A N/A
N/A N/A N/A
N/A N/A N/A
CERCLA (SUPERFUND) WASTEWATER, RCRA REMEDIATION/CORRECTIVE 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.) ® No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other remedial waste originates (or is excepted to origniate in
the next five years).
N/A
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.)
N/A
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):
N/A
b. Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous ❑ Intermittent If intermittent, describe discharge schedule.
N/A
END OF PART F. -
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO.DETERMI_NE WHICH OTHER PARTS
OF; FORM 2A YOU MUST COMPLETE ';

Roxboro WWTP
Inflow / Infiltration Rates
Period Covered —September 2010-August 2011
Base Flow into Roxboro POTW Excluding Infiltrationequals
The lowest average monthly flow from the period covered PIUS the highest
monthly flow from the period covered
divided by two = X
where,
a = the lowest average monthly flow was 1.31 mgd from August 2011
b = the highest average monthly flow was 2.23 mgd from March 2011
X = a+b
X = 1.31 + 2.23
2
X = 3.54
2
X = 1.77 mgd base flow excluding inflow/infiltration
Record difference for each daily flow in the covered period over 1.77
Example 9/27/10 Daily flow = 6.51-1.77 = 4.74 mgd inflow/infiltration,
Add difference for each day/month and divide by # of days/month = amount of
inflow/infiltration into POTW/ month
Repeat for each month in the covered period
Add the amount of inflow/infiltration entering POTW each month and divide by 12
Results for covered period =
Total inflow/infiltration for covered period = 1.429 million gallons
Divided by 12 months in period covered
= 0.119 mgd inflow/infiltration into POTW

FLOW M.G.D. FOR ROXBORO WWTP
FISCAL YEAR ( Sept. 2010 - Aug. 2011)
Date
1
Sep-10
1:17
Oct-10
1`91"'
Nov-Nov
-'-1.37•�-
Dec-10
; 1:76� -
Jan-11
1.45:'
Feb-11
1.61U236+'
Mar-11
Apr-11
2s36 `
May-11
,= 1.40 .
Jun-11
`-1.35 ",
Jul-11
1.28;
Aug-11
1.30 .
2
1.20
1.48
1.34
1.44
1.85
1.662.01s
1.43
1.36
1.21
1.30
3
.1.16 .
1.37;::
1:37
- •1.41
r15*78i
:.1.651:8Q
:
2n16a
1.40 '
1.20.
1.23
4
1.12
1.40
2.10
1.45
1.66
1:78'1.89'.
3.05
1.31
1.71
1.28
6
1.05 `
r. 1.38:
1.52
1.40,
:" 1.62
- Z65N'2r10'
- 1.74
1.32
1.38 "
1.28
6
1.09
1.39
1.51
1.47
1.63
1.95 "•
1.77
1.62
1.38
2.51
1.95
7
1. 15 •
..133.,,'1.35
1.47-..
:=1.60r-,:m1"81'�'-
1.73--
1.48
"1.38
3.63.
.1.33
s
1.19
1.28
1.35
1.48
1.58
1.771.84
c
1.52
1.34
2.586
1.39
s
4.19�_125
1.30=;
..1.45.;.,
' 1:47 _
1 74;;,.
�: ;2 37:
" ` 1.50
a 1.39 '
:. �1.75
.1.15
10
1.16
1.20
1.27
1.48
1.57
1.80•
2.81
2.06
1.55
1.33
1.34
1.15
11
1.25
-,.1.25
' 1.27
' . 1.45`••,
1.58 "
" -1.74
s2Q17 .,"
-. 185-;
:.1.47
2r26e
1.37
1.36
12
1.13
1.24
1.30
1.67
1.54
1.63
1.71
1.78
1.54
1.59
1.34
1.40
13
1.19 '
= 1.26 '.
1.25
1.52
.: 1.59
1.53 ;
1:64
1.72
2930�
1.29 "
" 1.44
4198•
14
1.15
1.58
1.16
1.52
1.58
1.55
1.73
1.65
1.70
1.40
1.39
1.35
16
1.13
1`.33
1.30'-
.1.52
1:55
1.57
-2.26.
"1.66:
1.60
1.42.
1.34,
1.33
16
1.09
1.25
1.54
' 2:12-
1.48
1.55
2.15`
3.44>
1.59
1.41
1.29
1.32
17
;' 1•-.14
1.21•.,
.:•.1.39'--.
`nO'
1.55,
'1.50",
-':¢1:85.
2.20,..
1.57, .
1.34..
1.26
1.23"
18
1 1.14
1.31
1.37
1.72
1.63
1.46
1.72
1.90
1.49
1.26
1.3
1.22
19
1.05 .
'".1:39:,
`: 1.36
'.,1.56
1.67""
1.52
1.62
1.49
'1.25
1.33
1.21
20
1.18
1.40
1.27
1.59
1.66
1.44
1.55
1.71
1.42
1.35
1.27
1.19
21
.1.18-,
' 1.33
1.26
1.56•.
..1.64:
i.54
. 1.63
1.68 -
° 1.34 ". "
1.33
1.304.
1.12
22
1.18
1.28
1.30
1.52
1.61
1.62
1.57
1.93,
1.48
1.34
1.26
1.22
23
1.13 '
:_ 1:20 `
1.31-
1.53
1.55
1.59
et3.84
1.63
1.73 "
1.36
1.19
1.21
24
1.09
1.56
1.32
1.48
1.65
1.60
2.98,
1.48
1.69
1.32
1.97
1.17
25
1.19
< 1:25 '
" _1.14,
1.41.-il
"2:12a
1.54:
'. 1.45,
1.27
1.46
1.19
26
1.72
1.59
1.32
1.55
2.34•
1.60
1.43
1.21
1.35
1.21
27
[eia511
1.48
' �-79r
-2:15F
<>1.35
1.30
1.52.:
1.56
es2:44'
2.23`
1.54
1.58
':'2!26ts
1.53
1.34.
2.151
1.24-
1.31
1.492a
1.17
29
*48'.
"1.66
1.35.
' :1.58
-2:02:
1.55
. 1.34 .
1.47
1.25
1.25
30
5.31
1.44
1.58
1.58
1.53
5.25'
1.47
1.32
1.31
1.36
1.25
31
1.34 a
%1.60
1.61
2.95,
1.38
1.42'
1.25
AVG.
1.61
1.49
1.36
1.56
1.63
1.69
2.23;
1.85
1.62
1.41
1.45
1.31
MAX.
6.51
4.29
2.10
2.12
2.17
2.65
5.25
3.44
3.05
2.26
2.58
1.98
MIN.
1.05
1.20
1.14
1.40
1.45
1.34
1.51
1.47
1 1.32
1 1.21
nne
1.19
Ic no
1.12
1091
TOT. 48.20 46.30 40.92 45.41 0u.01 W.4i oa,vv -•-- -•-- -
I Average Flow For The Fiscal Year 1.60 M.G.D.
(k-fkyF m- p AK P""'2J3 TOTAL FLOW FROM 9/1/10-8/31111 = 583.60 MILLION GALLONS
3SY Avg. of the 12 averages from 9/1/10-8/31/11=1.602mg
'2Avg. of the 12 Maximum flows from 9/1/10-8/31/11=3.20mg
Avg. of the 12 Minimum flows from 9/1/10-8/31/11=1.283mg

City of Roxboro WWTP
2011 Permit No. NC0021024 Renewal
Month
pH
BOD
temp
NH3
Fecal
TSS
D.O.
cl2
TKN
NO2NO3
O&G
Tphos
Cn
S.U.
mg/I
C° I
mg/I I
#/100m1
mg/I
mg/I
ug/I
mg/I
mg/I
mg/I
mg/I
ug/I
max/min
avg./max,
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max*
avg./max.
avg./max.
avg./max.
Sep-10
7.4/6.6
8.7/14.1
23.4/25.5
.76/6.05
7/420
.45/5.1
7.2/7.4
7.0/46
.94/.94
9.52/9.52
3.0/6.5
2.61/2.61
<5/<5
Oct-10
7.2/6.7
10.5/18.7
20.0/22.6
.16/1.01
26/1100
2.0/13.3
7.9/8.3
3.0/38
.73/.73
9.21/9.21
2.1/8.3
.77/.77
<5/<5
Nov-10
7.9/6.7
8.0/13.3
15.0/17.7
.03/.60
15/47
2.0/7.9
8.7/9.5
4.0/33
1.88/1.88
10.9/10.9
3.5/10.9
2.23/2.23
<5/<5
Dec-10
7.1/6.5
8.4/11.8
9.0/16.2
.61/4.57
8.0/45
5.0/7.7
9.6/10.7
3.0/36
1.22/1.22
11.7/11.7
1.1/5.5
1.22/1.22
<5/<5
Jan-11
7.1/6.7
7.9/11.7
8.0/12.1
.57/3.69
4.0/104
2.7/4.5
9.7/13.1
0/0
1.21/1.21
9.36/9.36
2.1/8.3
1.04/1.04
<5/<5
Feb-11
7.2/6.7
9.2/15.0
11.0/14.4
.41/2.70
4/130
4.3/13.7
9.0/10.1
5.0/38
1.88/1.88
9.40/9.40
5.4/9.4
1.03/1.03
<5/<5
Mar-11
7.2/6.6
11.5/20.9
13.2/16.7
.19/2.06
11/168
3.8/8.1
8.5/11.2
1.0/19
1.65/1.65
8.00/8.00
21.5/72.7
1.27/1.27
<5/<5
7.2/6.7
9.6/16.0
17.1/20.7
.07/.70
8/285
2.0/5.0
7.7/8.7
0/0
1.04/1.04
10.6/10.6
1.3/5.2
2.16/2.16
<5/<5
7.2/6.7
9.6/14.5
17.5/22.8
.09/1.30
14/1800
1.08/8.4
7.3/8.0
4.0/39
1.38/1.38
14.9/14.9
0/0
2.78/2.78
<5/<5
7.2/6.8
8.6/14.8
24.0/25.0
.13/.87
10.0/4100
1.0/7.5
7.2/7.8
1.0/21
.95/.95
7.11/7.11
0/0
1.47/1.47
<5/<5
rAug-1
7.3/6.8
7.4/10.8
25.5/26.9
.O1/.29
7.0/68
.40/4.3
7.1/7.5
2.0/43
1.14/1.14
5.09/5.09
0/0
2.61/2.61
<5/<5
7.2/6.8
8.0/11.8
25.4/26.9
.25/1.75
10.0/1400
.30/4.3
7.3/7.9
1.0/21
.92/.92
7.14/7.14
2.5/5.5
4.21/4.21
<5/<5.
8.8
0.27
10.3
2.1
8.1
2.6
1.25
9.41
3.5
1.95
<5
max.
7.9
20.9
4.57
4100
13.7
13.1
46
1.88
14.9
72.7
4.21
<5
min.
6.5
Month
Ni
Se
Cu
Cd
Ag
Zn
Hg
As
Mo
Cr
AI
Sb
Pb
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
avg./max.
Sep-10
<10/<10
<2/<2
9.0/12.0
<2.0/<2.0
<5.0/<5.0
77/102
1.85/2.40
<10/<10
<5.0/<5.0
<5.0/<5.0
280/280
8.0/9.0
<5.0/<5.0
Oct-10
<10/<10
9.0/10
73/80
1.99/2.11
Nov-10
2.4/12
13/15
72/92
2.22/2.61
Dec-10
<10<10
16/19
<2/<2
<5/<5
69/75
1.65/2.06
<10/<10
<5/<5
<5/<5
54/54
5.0/5.0
<5/<5
Jan-11
<10 <10
14/14
61/72
1.33/3.73
Feb-11
<10/<10
7.0/7.0
54/58
2.42/3.53
Mar-11
3.4/24
<2/<2
10.0/14.0
<2/<2
<5/<5
56/86
2.42/5.67
<10/<10
<5/<5
<5/<5
236/721
5.0/8.0
<5/<5
<10/<10
7.0/9.0
93/147
1.57/2.41
73/97
4.0/4.0
<10/<10
7.0/9.0
73/97
6.90/27.5
61/81
6.0/5.0
<10/<10
<10/<10
8.0/9.0
<2/<2
<5/<5
67/74
1.46/2.01
<10 <10
<5/<5
9.0/11.0
41/41
7.0/7.0
<5/<5
rug-11
<10/<10
10.0/10.0
59/66
1.68/2.15
<10/<10
9.0/10.0
52/55
3.14/6.10
0.48
<10
9.9
<2
1<5
67
2.39
<10
<5
2.25
124
5.8
<5
max.
24
<10
19
<2
<5
147
27.5
<10
<5
11
721
9
<5

Roxboro WWTP
p of samples for overlapping APA/NPDES parameters
Date
TKN
NOZN03
O&G
Tphos
Cn
Ni
Se
Cu
Cd
Ag
Zn
Hg
As
Mo
Cr
Al
Sb
Pb
2010/9
1
1
4
1
4
4
2
6
1
1
6
4
2
1
2
1
2
2
2010/10
1
1
4
1
4
4
0
2
0
0
2
4
0
0
0
0
0
0
2010/11
1
1
5
1
5
5
0
2
0
0
2
5
0
0
0
0
0
0
2010/12
1
1
5
1
5
5
0
5
1
1
5
5
1
1
1
1
1
1
2011/01
1
1
4
1
4
4
0
2
0
0
2
4
0
0
0
0
0
0
2011/02
1
1
4
1
4
4
0
2
0
0
2
4
0
0
0
0
0
0
2011/03
1
1
5
1
5
5
4
6
4
4
7
7
4
4
4
4
4
4
2011/04
1
1
4
1
4
4
0
5
0
0
5
4
0
0
0
3
3
0
2011/05
1
1
4
1
4
4
0
3
0
0
3
5
0
0
0
2
2
0
2011/06
1
1
4
1
4
4
2
4
2
2
4
4
2
1
2
1
2
2
1
4
1
4
4
0
2
0
0
2
4
0
0
0
0
0
0
1
5
1
5
5
0
2
0
0
2
5
0
0
0
0
0
0
T2009apa
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Total
14
14
54
14
54
54
10
43
10
10
44
57
11
9
11
14
16
11

City of Roxboro WWTP
NPDES NCO021024
Marlowe's Creek
De -Chlorination Channel
Influent Chlorine
Sample Contact
Point
[fllScreening & Grit
Removal
Secondary
Clarifier
0.345 MG
G
v
0
E
w
d
Aeration
Aeration
Secondary
p
Basin
Basin
Clarifier
n
3 MG
3 MG
0.345 MG
s
n
Secondary
Clarifier
0.345 MG
Aeration Basin Effluent
60o Aerobic Aerobic A`
KP' Digestor Digestor
Generator 2 acre Sludge Lagoon
0.228 MG 0.228 MG 2 acre Sludge Lagoon
2 acre Sludge lagoon

Roxboro WWTP Sludge Management Plan
Waste activated sludge is removed from the treatment system from the secondary
clarifiers. It is pumped to our aerobic digesters. We have 2 digesters. Each will hold
228,000 gallons. The sludge is first pumped into our primary digester where it is aerated
with compressed air. The air is distributed trough fine bubble diffusers. The air is turned
off and the solids are allowed to settle so that the decant liquid is drawn off and returned
the head of the aeration basin.
When the primary digester is filled with solids, those solids are transferred to the
secondary digester. They are aerated with compressed air and excess water is decanted if
possible.
Solids are retained in the digesters as long as possible to insure that we meet volatile solid
reduction to meet 503 requirements.
Sludge solids are pumped from the secondary digester to our sludge lagoons. We have (3)
two acre lagoons of which sludge can be pumped. Sludge is normally pumped in a lagoon
from 6 months to 1 year. After filling a lagoon it is valved off, the water in the sludge is
filtered into a drain system and returned the head of the aeration basin.
The drying of the sludge is also aided by sun evaporation.
When the sludge is dry enough to be removed from the lagoons, we have a contract with
Synagro to remove it. They use front-end loaders and dump trunks to haul and apply it to
the City of Roxboro's permitted sites. This is operated under permit WQ0021826.

Derek Clavton
Sent: Thu lol6J2011 11:11 AM
From: Tommy Warren
To: Derek Clayton
Cc:
Subject: RE: Population #'s
Attachments:
The number of residential customers served with sewer is 95. At 2.46 people per house , that equals 236.
I know this is different from what you have used. If you have any questions give me a call.
Thanks
Tommy
From: Derek Clayton
Sent: Tuesday, October 04, 2011 10:03 AM
To: Tommy Warren
Subject: Population #'s
Tommy,
If you can get me those population #'s, I can finish up the NPDES renewal app.
a. City of Roxboro Population served 8,387
b. Unincorporated Areas of Co. Population served 236
Thanks
Derek
https:lloutlook.personcounty. nettexchangeldclaytonllnboxlRE:%20Population%.20%23%27s-2.... 12n12011