NC0024112_Permit Issuance_20140825

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WDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
August 25, 2014
Mr. Allen Beck, WWTP Superintendent
City of Thomasville
PO Box 368
Thomasville, North Carolina 27361
Subject: Final NPDES permit
Permit NCO024112
Hamby Creek WWTP
Davidson County
Class IV Facility
Dear Mr. Beck:
John E. Skvarla, III
Secretary
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or
as subsequently amended).
The final permit contains the following changes from your previous permit: .
• The description of the treatment system in the Supplement to Permit Cover Sheet was
corrected to eliminate the 6 MG lagoon and add the three disk filters.
• Special condition A.(2.) was modified to clarify wording and paragraph references.
• The permit includes a special condition describing requirements to develop a Mercury
Minimization Plan (see Special Condition A. (8).)
• Monitoring frequency for zinc and copper were modified to quarterly according to the
Division's monitoring frequency guidance for metals.
• As a result of a reasonable potential analysis limits and monitoring fox Total Cadmium, Total
Lead, Total Nickel, Total Silver, Total Mercury, Cyanide, and Total Selenium were
eliminated from the permit.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: wwwmwaterguality.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarohna
Naturaltff

Mr. Allen Beck
August 25, 2014
Page 2 of 3
• The requitement to perform effluent pollutant scans was modified from annual to three
times during your permit cycle (See Special Condition A. (6)). This condition also includes
the requirements for toxicity testing with second species.
• A reopener condition for copper was included in the permit (See Special Condition A.(9)).
Hamby Creek is listed in the NC 303 (d) list as impaired for copper but the Division has not
developed a TMDL for this impairment because it will reevaluate all the streams impaired
for metals upon approval of the dissolved metal standards proposed in the triennial review
process. The Division then will develop and implement TMDLs when appropriate.
• A special condition was added to the draft permit to address the Environmental Protection
Agency's (EPA's) pending requirement for you to provide electronically -submitted
Discharge Monitoring Reports (eDMRs). See Condition A.(7.) in permit. For information on
eDMR, registering for eDMR and obtaining an eDMR user account, please visit the
following web page:
http://12ortal.ncdenr.org/-,veb/wq/adn-iin/­bog/ipu/edmt.
For information on EPA's proposed NPDES Electronic Reporting Rule, please visit the
following web site:
http•//w-,v-,v2 epa gov/compliance/proposed-npdes-electronic-reporting-rule.
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
Resources or permits required by the Division of Land Resources, the Coastal Area Management
Act or any other federal or local governmental permits that may be required.

• Mr. Allen Beck
August 25, 2014
Page 3 of 3
If you have any questions concerning this permit, please contact Teresa Rodriguez at telephone
number [phone] or at email [e-mail].
Sincerely,
Thomas A. Reeder, Director
Division of Water Resources, NCDENR
cc: NPDES Files
Central Files
EPA Region 4 (e-copy)
WS Regional Office / Surface Water Protection Section
Aquatic Toxicology Unit, Susan Meadows (e-copy)
Monitoring Coalition Coordinator, Carrie Ruhlman (e-copy)

Permit NCO024112
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended, the
City of Thomasvffle
is hereby authorized to discharge wastewater from a facility located at the
Hamby Creek WWTP
110 Optimist Park Road
Davidson County
to receiving waters designated as Hamby Creek in the Yadkin -Pee Dee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, III, and TV hereof.
The permit shall become effective October 1, 2014.
This permit and the authorization to discharge shall expire at midnight on April 30, 2019.
Signed this day August 25, 2014.
Thomas A. Reeder, Director
07/ Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 11

Permit NC0024112
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this
permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive
authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and
provisions included herein.
The City of Thomasville is hereby authorized to:
1. Continue to operate the existing 6.0 MGD wastewater treatment facility that includes the
following components:
➢ Influent filter screening equipment
➢ Solids classifier grit removal system
➢ Cannibal ® solids reduction system including interchange tanks
➢ 5-stage Bardenpho® oxidation system
➢ Three fine -bubble aeration basins
➢ Three secondary clarifiers
➢ Three disk filters
➢ UV disinfection
Standby generator
This permitted facility is located at the Hamby Creek WWTP, 110 Optimist Park Road
near Thomasville in Davidson County.
2. Discharge treated wastewaters from said facility via outfall 001 into Hamby Creek,
currently classified C waters in the Yadkin -Pee Dee River Basin, at the location specified
on the attached map.
Page 2 of 11

Permit NCO024112
Part I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective dayof this permit and lasting until expiration, the Permittee shall be
authorized to discharge treated wastewater from Outfall 001 subject to the following effluent limitations and
monitoring6 requirements:
EFFLUENT LIMITATIONS
M'ONIT.ORING REQUIREMENTS.
PARAMETER
Monthly
Week' y
Dail y
Measurement
Sam le
p
S'am le
p
Average
Average
Maximum
Frequency
Type
Location
Flow
6.0 MGD
Continuous
RecordingInfluent
or
Effluent
BOD, 5-day, 20°C'
4.0 mg/L
6.0 mg/L
Daily
Composite
Influent &
(Apr ill - Oct 31)
Effluent
BOD, 5-day, 20°C'
6.0 mg/L
9.0 mg/L
Daily
Composite
Influent &
(Nov 1- Match 31)
Effluent
Total Suspended Solids'
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent &
Effluent
NH3-N, mg/L (April -1 -
1.0 mg/L
3.0 mg/L
Daily
Composite
Effluent
Oct 31)
NH3-N, mg/L
3.0 mg/L
9.0 mg/L
Daily
Composite
Effluent
(Nov March 31)
Fecal Coliform (geometric
200/100 mL
400/100 mL
Daily
Grab
Effluent
mean)
Dissolved Oxygen
Daily average shall not be less than 6.0 mg/L
Daily
Grab
Effluent
pH
> 6.0 and < 9.0 standard units at all times
Daily
Grab
Effluent
Temperature, °C
Daily
Grab
Effluent
Conductivity, µmhos/cm
Daily
Grab
Effluent
Total Phosphorus
Weekly
Composite
Effluent
Total Phosphorus 2
(April 1 - Oct 31)
3,570 lb seasonal total
Seasonally
Calculated
Effluent
Total Phosphorus 2
(Nov 1- March 31)
5,040 lb seasonal total
Seasonally
Calculated
Effluent
Total Nitrogen
Monthly
Composite
Effluent
Total Copper3
Quarterly
Composite
Effluent
Total Zinc3
Quarterly
Composite
Effluent
Chronic Toxicity4
Quarterly
Composite
Effluent
Effluent Pollutant Scans
Monitor and Report
Footnote 5
Footnote 5
Effluent
Footnotes:
1. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15 % of the
respective influent values.
2. Monitoring for total phosphorus shall be conducted and calculated as prescribed above and in Condition A.(3.).
3. Monitoring for copper and zinc shall coincide with Chronic Toxicity monitoring.
4. Ceriodaphnia P/F @ 90%; February, May, August, November; see Special Condition A.(4.).
5. See special condition A.(6.)
Page 3 of 11

Permit NCO024112
6. No later than 270 days from the effective date of this permit, begin submitting discharge monitoring reports
electronically using NC DWR's eDMR application system. See Special Condition A. (7.)
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A. (2.) INSTREAM MONITORING REQUIREMENTS
1. Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall
perform instream sampling upstream and downstream of Outfall 001 as specified below, unless
exempted per paragraph 2 below:
PARAMETERS
SAMPLE TYPE
MONITORING FREQUENCY
SAMPLE
LOCATION
(1)
Jun 1- Sep 30
Oct 1- May 31
Temperature
Surface
3/week
Weekly
U, D
Dissolved Oxygen
Surface
3/week
Weekly
U, D
Fecal Coliform
(geometric mean)
Surface
3/week
Weekly
U, D
Conductivity
Surface
3/week
Weekly
U, D
Total Phosphorus
Surface
Monthly
Monthly
U, D
TKN
Surface
Monthly
Monthly
U, D
NH3-N, as N
Surface
Monthly
Monthly
U, D
NO2-N + NO3-N
Surface
Monthly
Monthly
U, D
Chlorophyll -a
Surface
Monthly
Monthly
D
Footnotes:
(1) Sample locations: U - Upstream at Baptist Children's Home Road, D - Downstream at SR
2017 and on Abbotts Creek at Center Street below the confluence with Leonard Creek.
2. The Permittee shall be provisionally exempted from the instream monitoring requirements specified in
paragraph 1 above, so long as the Permittee remains a party in good standing of the Yadkin -Pee Dee
River Basin Association. If the Permittee's participation is terminated the permittee shall notify the
Division in writing within five (5) working days and the requirements in paragraph 1 shall be reinstated.
Page 4 of 11

Permit NCO024112
A. (3.) TOTAL PHOSPHORUS MONITORING
The Permittee shall calculate the seasonal mass loading of total phosphorus as the sum of monthly loadings,
according to the following equations:
Monthly Mass Loading (pounds/month) = TP x Q x 8.34
where: TP = , the average total phosphorus concentration (mg/L) of the
composite samples collected during the month
Q = the total volume of wastewater discharged during the month at
each outfall (MG/month)
8.34 = conversion factor, from (mg/L x MG) to pounds
Seasonal Mass Loading (pounds/season) _ (Monthly Mass Loadings) for the
season
The Permittee shall report the total phosphorus concentration for each sample and the monthly mass
loading in the appropriate self -monitoring report and the seasonal mass loading of total phosphorus in the
final self-monitotng report for the season.
A. (4.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality
to Ceriodaphnia dubia at an effluent concentration of 90%. .
The permit holder shall perform at a minimum, qzarterl monitoring using test procedures outlined in the
"North Carolina Cviodlapbnia Chronic Effluent Bioassay Procedure," Revised December 2010, or
subsequent versions or "North Carolina Phase ]1 Chronic Whole Effluent Toxicity Test Procedure"
(Revised- December 2010) or subsequent versions. The tests will be performed during the months of of
February, May, August and November.. These months signify the first month of each three month
toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during
representative effluent discharge and shall be performed at the NPDES permitted final effluent discharge
below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV
below the permit limit, then multiple -concentration testing shall be performed at a minimum, in
each of the two following months as described in "North Carolina Phase II Chronic Whole Effluent
Toxicity Test Procedure" (Revised -December 2010) or subsequent versions.
All toxicity, testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B
for the pass/fail results and THP3B for the Chronic Value. Additionally, DWR Form AT-3 (original) is to
be sent to the following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
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.
Page 5 of 11

Permit NC0024112
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 requi ed, monitoring
will be required during the following month. Assessment of toxicity compliance is based on the toxicity
testing quarter, which is the three month time interval that begins on the first day of the month in which
toxicity testing is required by this permit and continues until the final day of the third month.
Should any test data from this monitofing requirement or tests performed by the North Carolina Division
of Water Resources indicate potential impacts -to the receiving stream, this permit may be re -opened and
modified to include alternate monitoring requirements or limits.
If the Permittee monitors any pollutant more frequently than required by this permit, the results of such
monitoring shall be included in the calculation &reporting of the data submitted on the DMR & all AT
Form submitted.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls, shall
constitute an invalid test and will require immediate follow-up testing to be completed no later than the last
day of the month following the month of the initial monitoring.
A. (5.) NON -DETECTION REPORTING AND DETERMINATION OF COMPLIANCE
When pursuant to this permit a pollutant analysis is conducted using an approved analytical protocol with
the appropriate minimum detection level and a result of "non -detectable" or "below quantitation limit" is
obtained, the Permittee shall record that result as reported. For the purpose of deternining compliance with
a permit limit for the pollutant, the numerical value of that individual analytical result shall be zero.
Page 6 of 11

Permit NCO024112
A. (6.) 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: 2015, 2016, and 2017. 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-chloxonaphthalene
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-drehlorobenzene
Copper
Vinyl chloride
3,3-dichlorobenzidine
Lead
Acid -extractable compounds:
Diethyl phthalate
Mercury (EPA Method 1631E)
P-chloro-m-cresol
Dimethyl phthalate
Nickel
2-chloxophenol
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-ttichlorophenol
Indeno(1,2,3-cd)pyrene
Benzene
Base -neutral compounds:
Isophorone
Bromoform
Acenaphthene
Naphthalene
Carbon tetrachloride
Acenaphthylene
Nitrobenzene
Chlorobenzene
Anthracene
N-nitrosodi-n-propylamine
Chlorodibxomomethane
Benzidine
N-nitrosodimethylamine
Chloroethane
Benzo(a)anthracene
N-nitrosodiphenylamine.
2-chloroethylvinyl ether
Benzo(a)pyrene
Phenanthrene
Chloroform
3,4 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 DWR Form -A MR-PPA1 (or in a form approved by the Director) by
December 31st of each designated sampling year. The report shall be submitted to the following address: NC DENR
/ DWR / Central Files,1617 Mail Service Center, Raleigh, North Carolina 27699-1617.
Page 7 of 11

Permit NC0024112
Additional Toxicity Testing Requirements for Municipal Permit Renewal. Please note that Municipal
facilities that are subject to the Effluent Pollutant Scan requirements listed above are also subject to
additional toxicity testing requirements specified in Federal Regulation 40 CFR 122.210)(5). The US EPA
requires four (4) toxicity tests for a test organism other than the test species currently required in this permit.
The multiple species tests should be conducted either quarterly for a 12-month period prior to submittal of
the permit renewal application, or four tests performed at least annually in the four and one half year period
prior to the application. These tests shall be performed for acute or chronic toxicity, whichever is specified
in this permit. The multiple species toxicity test results shall be filed with the Aquatic Toxicology Branch at
the following address:
North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Contact the Division's Aquatic Toxicology Branch at 919-743-8401 for guidance on conducting the
additional toxicity tests and reporting requirements. Results should also be summarized in Part E (Toxicity
Testing Data) of EPA Municipal Application Form 2A, when submitting the permit renewal application to
the NPDES Permitting Unit.
A. (7.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
Proposed federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and
specify that, if a state does not establish a system to receive such submittals, then permittees must submit
DMRs electronically to the Environmental Protection Agency (EPA). The Division anticipates that these
regulations will be adopted and is beginning implementation in late 2013.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for.NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting [Supersedes Section D. (2) and Section E (5.)
Beginning no later than 270 days from the effective date of this permit, the permittee shall begin
reporting discharge monitoring data electronically using the NC DWR's Electronic Discharge
Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring
data and submit DMRs electronically using the internet. Until such time that the state's eDMR
application is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR),
permittees will be required to submit all discharge monitoring data to the state electronically using
eDMR and will be requited to complete the eDMR submission by printing, signing, and submitting one
signed original and a copy of the computer printed eDMR to the following address:
Page ,8 of 11

Pen -nit NC0024112
NC DENR / DWR / Information Processing Unit
ATTENTION: Central Files / eDMR
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband access,
then a temporary waiver from the NPDES electronic reporting requirements may be granted and
discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative forms
approved by the Director. Duplicate signed copies shall be submitted to the mailing address above.
Requests for temporary waivers from the NPDES electronic reporting requirements must be submitted
in writing to the Division for written approval at least sixty (60) days prior to the date the facility would
be required under this permit to begin using eDMR. Temporary waivers shall be valid for twelve (12)
months and shall thereupon expire. At such time, DMRs shall be submitted electronically to the
Division unless the pennittee re -applies for and is granted a new temporary waiver by the Division.
Information on eDMR and application for a temporary waiver from the NPDES electronic reporting
requirements is found on the following web page:
htW://portal.ncdenr.org/web/wq/adr in/bog/ipu/edinr
Regardless of the submission method, the fast DMR is due on the last day of the month following the
issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
2. Signatory Requirements [Supplements Section B. (U.) (b) and supersedes Section B. (11.) (dll
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (11.) (a) or by a duly authorized representative of that person as described in Part II, Section
B. (11.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting
purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user
account and login credentials to access the eDMR system. For more information on North Carolina's
eDMR system, registering for eDMR and obtaining an eDMR user account, please visit the following
web page:
http://12ortal.ncdenr.org/web/­wq/adinin/bog/­­jpu/­edinr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the
following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL
BE ACCEPTED:
"I cert, under penaly of law, that this document and all attachments were prepared under my direction or supervision in
accordance with a system designed to assure that quaffed personnel properly gather and evaluate the information submitted.
Based on my inquiry of the person orpersons who manage the ystem, or those persons directly responsible forgathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware
that there are significantpenalties for submitting false information, including the possibility of fines and imprisonment for
knowing violations "
Page 9 of 11

Permit NC0024112
3. Records Retention [Supplements Section D. (U
The permittee shallretain records of all Discharge Monitoring Reports, including eDMR submissions.
These records or copies shall be maintained for a period of at least 3 years from the date of the report.
This period may be extended by request of the Director at any time [40 CFR 122.41].
A. (8.) MERCURY MINIMIZATION PLAN
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 be available 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.
A. (9.) COPPER REOPENER
The.Division may reopen this permit to implement copper limits or other measures when a TMDL is
developed and approved for the copper impairment in Hamby Creek.
Page 10 of 11

Permit NCO024112
Hamby Creek WWTP — NCO024112 FacilityLocation
City of Thomasville, Davidson County (not to scale)
Receiving Stream: Hamby Creek Stream Class: C
Drainage Basin: Yadkin -Pee Dee Sub -Basin: 03-07-07
HUC: 03040103 Permitted Flow: 6 MGD
State Grid/USGS Quad: Fair Grove
Latitude 35' 50' 54" Longitude 80° 06'.51"
Page 11 of 11

Rodriguez, Teresa
From: Beck, Allen <[e-mail]>
Sent: Thursday, July 10, 2014 11:48 AM
To: Rodriguez, Teresa
Cc: Craver, Kelly; Huffman, Morgan; Carter, Jenifer; Basinger, Corey
Subject: City of Thomasville Draft Permit
Teresa,
have reviewed the draft permit and there are only two, things I see that need to be addressed. Under the
equipment listed for our 6 MGD WWTP you have a 6,000,000-gallon reaeration lagoon listed and that item
was drained and filled in during the construction of the new plant so it no longer exist. One item we do
have that was not listed are three disk filters that treated water passes through before going through the
UV disinfection unit.
Should you have any questions please feel free to call me.
Thanks,
Allen
Fe
2 ;V&ea Ss
6:r# 4 '7lz""w& ?2e 27360
P"w [phone]
1

42008346
J000482400
AFFIDAVIT OF PUBLICATION
STATE OF NORTH CAROLINA LEXINGTON, NC July 3, 2014
DAVIDSON COUNTY
I, Lynn Bowers OF THE DISPATCH, A NEWSPAPER PUBLISHED IN THE CITY OF LEXINGTON, COUNTY AND STATE
AFORESAID, BEING DULY SWORN, SAYS THE FOREGOING LEGAL OF WHICH THE ATTACHED IS A TRUE COPY,
WAS PUBLISHED IN SAID NEWSPAPER ONCE, BEGINNING THE 3rd DAY OF July, 2014.
PUBLICATION FEE: $ 85.19
(SEAL)
AND SUBSCRIBE BEFORE ME, THIS `-3 DAY OF v/
MY COMMISSION EXPIRES IZ— (ya �J �D
Ad Copy
Public Notice
North Carolina
Environmental Management
Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notice of Intent to Issue a
NPDES Wastewater Permit
The North Carolina
Environmental Management
Commission proposes to issue
a NPDES wastewater
discharge permit to the
person(s) listed below. Written
comments regarding the
proposed permit will be
accepted until 30 days after the
publish date of this notice. The
Director of the NC Division of
Water Resources (DWR) may
hold a public hearing should
there be a significant degree of
public interest. Please mail
comments and/or information
requests to DWR at the above
address. Interested persons
may visit the DWR at 512 N.
Salisbury Street, Raleigh, NC
to review information on file.
Additional information on
NPDES permits and this notice
may be found on our website:
http://portal.ncdenr.org/web/wq/
swp/ps/npdes/calendar, or by
calling [phone]. The
City of Thomasville requested
renewal of permit NC0024112
for Hamby Creek WWTP in
Davidson County: this
permitted discharge is treated
municipal wastewater to
Hamby Creek, Yadkin River
Basin.
July 3, 2014
\SO N I L IM
Notary Public
Davidson County =
_My Commission Expires=
2------------ -P
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DENR/DWR
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO024112
Facility _ Information
Applicant/FacilityName:
City of Thomasville/Hamby Creek WWTP
Applicant Address
PO Box 368, Thomasville, NC 27361
FacilityAddress:
110 Optimist Park Rd, Thomasville NC27360
Permitted Flow
6.0 MGD
Type of Waste:
Domestic & Industrial
Facility/Permit Status:
Major -Class IV/Renewal
County:
Davidson
Receiving Stream:
Hamby Creek
State Grid / USGS Quad:
D18SE
Stream Classification:
C
:.303 d. Listed?
Yes
Subbasin:
03-07-07
HUC:
03040103
Drainage Area (mi2):
13.3
Latitude:
350 50' 54"
s7Q10 cfs
0.43
Longitude:
800 06' 51"
w7Q10 cfs
1.3
Regional Office:
Winston-Salem
30Q2 cfs
1.7
Permit Writer:
Teresa Rodriguez
Average Flow cfs :
12
Date:
6/27/2014
IWC (%)C
96
SUMMARY
The City of Thomasville operates a 6.0 MGD biological nutrient removal wastewater treatment facility
consisting of influent filter screen, grit removal, 5-stage oxidation system, reaeration tanks, final clarifiers UV
disinfection system, effluent pump station and effluent force main. The City has a full pre-treatment program
with 2 non -categorical significant industrial users and 4 categorical industrial users. The permit requires the
City to continue to implement its pre-treatment program.
RECEVING STREAM
This facility discharges to Hamby Creek, subbasin 03-07-07, HUC 03040103, in the Yadkin River Basin. The
stream is classified C. This section of Hamby Creek is listed on the 2012 NC 303(d) list as impaired for
copper. The Division has not developed a TMDL for this impairment because it will reevaluate all the
streams impaired for metals upon approval of the dissolved metal standards proposed in the triennial review
process. The Division then will develop TMDLs when appropriate.
There is a TMDL for fecal coliform for Hamby Creek. Point sources are addressed in the TMDL
through the implementation of fecal coliform limits to meet instream water quality standards. This permit
includes limits for fecal coliforms.
COMPLIANCE REVIEW
DMR Data
Effluent DMR data was reviewed for the period of April 2009 to April 2014. The facility was in compliance
with all permit limits for this period.
Table 1. DMR Summa
Flow
Temp
DO
;° pH",
BOI7
TSS
NH3N
Fecal" '
TP
TN
( GD)
°C
mg/1
S.U.
mg/l
mg/l
mg/1
Colifoxm
mg
ing/1
..
, ,
Average
2.36
19
8.9
7.0
2
4
0.3
3
0.19
2.84
Maximum
6.19
29
10.9
8.3
21
96
10
6000
3.94
13.6
Minimum
1.13
10
3.9
6.3
< 2
< 5
< 0.1
< 1
< 0.05
0.15
Fact Sheet
NPDES NC0005762 Renewal
Page 1

Reasonable Potential Analysis (RPA)
A reasonable potential analysis (RPA) was performed for cadmium, chromium, copper, cyanide, lead, nickel,
selenium, silver and zinc. Only copper and zinc have reasonable potential to exceed the action level standards.
See attached RPA results for recommendations.
Toxicity Testing
Current requirement: Chronic P/F @ 90%. The facility passed all the toxicity tests for the period of April
2009 until April 2014.
Mercury
A mercury evaluation was conducted in accordance with the Permitting Guidance developed for the
implementation of the statewide Mercury TMDL to determine the need for a limit and Mercury Minimization
Plan (MMP). Based on dilution the water quality based effluent limitation (WQBEL) for mercury is 12.6 ng/l.
The technology based effluent limit (TBEL) is 47 ng/l. There is no reasonable potential to exceed the water
quality limit or the technology based limit. The facility had detections above 1 ng/l over the past five years
therefore a Mercury Minimization Plan will be required in the permit. A condition will be added to the permit
describing the requirements for the MMP.
Table 2. Mercury Data Summary
2009
2010
2011
2012
2013
Annual average (n /1)
1.6
1.5
1.2
1.3
1.3
Maximum value (n /1)
3.9
5.0
2.6
4.5
4.0
Instream Monitoring
The facility is a member of the Yadkin- Pee Dee River Basin Association and therefore is exempt from the
instream requirements in the permit. The Association keeps one monitoring station on Hamby Creek at SR
2775 upstream of the discharge. All monitored parameters at this station were within water quality standards
except turbidity.
Table 3. Limits Basis and Proposed Chan_aes
Parameters Affected
Change from Previous
Basis for Condition/Change
Permit
Flow
No changes
Design flow
BOD5
No changes
Based on modeling for protection of the
DO standard
NH3-N
No chan es
Protection of aquatic toxicity
TSS
No chan es
Secondary treatment standards, 40 CFR 122
Fecal coliform, D.O., pH
No chan es
State WQ standards, T15A 2B .0200
Total residual chlorine
No changes
State WQ standards, T15A 2B .0200
Total Nitrogen
No changes
T15A 02B .0508
Total Phosphorus
No changes
T15A 02B .0508
Total Cadmium
Eliminate limits and
No reasonable potential to exceed the water
Total Lead
monitoring
quality standards.
Total Nickel
Total Silver
Total Mercury
Total Selenium
Cyanide
Total Copper
Modify monitoring
Division's monitoring frequency guidance
Total Zinc
frequencyto quarterly
for metals.
Effluent Pollutant Scan
Modify frequency to three
40 CFR 122
times during permit cycle
Fact Sheet
NPDES NC0005762 Renewal
Page 2

OTHER CHANGES IN PERMIT:
1. Special condition A.(8)was added to the permit describing requirements to develop a Mercury
Minimization Plan.
2. Added special condition A.(7) was added to the permit describing requirements for electronic
reporting of DMRs.
3. A reopener condition A.(9) was added for copper. If the Division develops a TMDL for copper the
permit can be reopened to implement limits or other measures.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: July 2, 2014
Permit Scheduled to Issue: August 18, 2014
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please contact
Teresa Rodriguez at 919-807-6387.
REGIONAL OFFICE COMMENTS
NAME: DATE:
SUPERVISOR: DATE
Fact Sheet
NPDES NC0005762 Renewal
Page 3

Thomasville 2014 Freshwater RPA - 95% Probability/95% Confidence
NCO024112 MAXIMUM DATA POINTS = 58
Outfall 001
Qw = 6 MGD
Acute: NO WQS
Fluoride
NC
1800 FW(7QIOs)
ug/L
0
N/A
-
------------ -------_-----
Chronic:----1,883.2
Acute: 35.1
No RP
Lead
NC
25 FW(7Q10s) 33.8
ug/L
58
_ _ --- _ _ _ _
_ _ _ _ _ _ _ _ _
Chronic: 26.2
— _
Eliminate monitoring
No value > Allowable Cw
Acute: NO WQS
Mercury
NC
12 FW(7QIOs)
u5
nil
0
X -\
_ _ ----_ __—_
_----_--_--_-----__-_-----
Chronic: 12.6
Acute: NO WQS
Molybdenum
NC
2000 HH(7Q10s)
uc l
Chronic: 2,092.5
Acute: 27 L l
NO RP
Nickel
NC
88 FW(7Q10s) 261
u_ I
>n
27.3
Chronic: 92.1
Eliminate monitoring
No value > Allowable Cw
Acute: 58.2
All values less than detect
Selenium
NC
- FW(7Q10s) 56
ue L
U
A
Chronic: 5.2
Eliminate monitoring
Acute: 1.278
All values less than detect
Silver (AL)
NC
0.06 FW(7Q10s) 1_�
Chronic: 0.063
Eliminate monitoring
Acute: 69.6
No RP
Zinc (AL)
NC
rl FW(7Q10s)
_
Chronic: 52.3
-----_—
Monitor quarterly
No value > Allowable Cw
Acute:
N/A
Chronic+----------
---- --
Acute:
Chronic:---------
------------ — ----------
Acute:
�' \
_
—Chronic:------- —
-—-—-—-—-—-—-—-—-—-—-—-—-—
Acute:
---------
Chronic:
----------..—— -—-—-— - — - — -—
24112 RPA 2014.x1sm, rpa
Page 2 of 2 6/23/2014

Thomasville 2014 Freshwater RPA - 95% Probability/95% Confidence
NCO024112 MAXIMUM DATA POINTS = 58
Qw (MGD) = 6.00 WWTP/WTP Class:
1QI0S (cfs)= 0.36 fWC @ IQIOS = 96%
7Q10S (cfs) = 0.43 IWC @ 7Q10S = 96%
7QI0W (cfs) = 1.30 IWC @ 7QIOW = 88%
30Q2 (cfs) = 1.70 IWC @ 30Q2 = 85%
Avg. Stream Flow, QA (cfs) = 12.00 1WC @ QA = 44%
Receiving Stream: Hamby Creek Stream Class: c
Outfall 001
Qw=6MGD
PARAMETER
STANDARDS & CRITERIA (2)
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
'a
NC WQS / Applied %2 FAV /
Max Pred
(1)
Z
D
# Allowable Cw
11 Det.
Chronic Standard Acute
Cw
Acute: NO WQS
Arsenic
C
50 FW(7QIOs)
l.
0 0
N/A
_ _ ---- _ -_ --
Chronic:
--------------------------
Arsenic
C
10 HH/WS(Qavg)
ug; 1.
0
N/A
Chronic:
—
Acute: NO WQS
Beryllium
NC
6.5 FW(7QIOs)
ug/I.
0
N/A
Chronic:---- 6.8 ---
------ ------
Acute: 15.6
Cadmium
NC
2 FW(7QIOs) 15
u�_'I.
0 o
N-:�
All values less than detect
_ _ _______
Chronic 2.1
Eliminate monitoring
Acute: NO WQS
Chlorides (AL)
NC
2,0 FW(7QIOs)
N/A
_
Chronic:— — 241 --
- — -— — ----
Acute: NO WQS
Chlorinated Phenolic Compounds
NC
1 A(30Q2)
ug/L
0
N/;1
--Chronic: -----1.2 ---
--------------------------
Acute: NO WQS
Total Phenolic Compounds
NC
300 A(30Q2)
ug/L
0 0
N%A
_
_—Chronic:---- 354.8 --
---- -----------------
Acute: 1,061.E
Chromium
NC
50 FW(7QIOs) 1022
ue/I.
58 4
4.6
NO RP
_ _ _ _ ___
Chronic: 52.3
_ _ _
No value > Allowable Cw
Eliminate monitoring
Acute: 7.6
Copper (AL)
NC
7 FW(7QIOs) 7
ug/L
58 58
23.0
RP, quarterly monitoring
Chronic:-----7.3 --
-------------------------
7 values > Allowable Cw
Acute: 22.9
Cyanide
NC
5 FW(7QIOs) 22
10
a<..,/I.
0 0
NiA
All values less than detect
_ _ _ ___
Chron_ic: 5.2
Eliminate monitoring
24112 RPA 2014.xlsm, rpa
Page 1 of 2 6/23/2014 .

REASONABLE POTENTIAL ANALYSIS
8
Chromium
Date Data
BDL=1/2DL
Results
1
<
2 1
Sid Dev.
2
<
2 1
Mean
3
<
21
C.V.
4
2.1 2.1
n
5
3.4 3.4
6
2.4 2.4
MultFactor=
7,
2:9 2.9
Max. Value
8
2.2 2.2
Max. Pred Cw
9
2.7' 2.7
10
3.2 3.2
11
2.3 2.3
12
2.4 2.4
13
2.3 2.3
14
<
2 1
15
2.2 2.2
16
<
2' 1
17
2.2 2.2
18
2 2
19
2'.4 2.4
20
2.3 2.3
21
2.5 2.5
22
2.2 2.2
23
<
2 1
24
1.7 1.7
25
<
2. 1
26
<
2 1
27
<
2 1
28
<
2 1
29
2.7 2.7
30
<
2 1
31
<
2 1
32
2.5 2.5
33
4.6 4.6
34
2.4 2.4
35
2.2 2.2
36
3 3
37
3.6 3.6
38
4.5 4.5
39
<
2 1
40
2.3 2.3
41
2.2 2.2
42
3.2 3.2
43
2.6` 2.6
44
2.9 2.9
45
2.7 2.7
46
2.5 2.5
47
2.1 2.1
48
2.2; 2.2
49
3.1 3.1
50
2.6 2.6
51
-2.4' 2.4
52
2.8 2.8
53
3.8 3.8
54
3.4 3.4
55
2.8 2.8
56
4 4
57
2.6 2.6
58
3.1 3.1
2.3310
0.3913
58
1.00
4.6 ug/L
4.6 ug/L
9
Copper (AL)
Date Data BDL=1/2DL
Results
1
I 5 5
Sid Dev.
2
t 2.78 2.78
Mean
3
I 6.31 6.31
C.V.
4
3.9 3.9
n
5
I 3.1 3.1
6
I 5.99 5.99
MultFactor=
7
f 2.1 2.1
Max. Value
8
; 4.5 4.5
Max. Pred Cw
9
3.3 3.3
10
7.7 7.7
11
10 10
12
3.3 3.3
13
2.3 2.3
14
3 3
15
4 4
16
4 4
17
4.2 4.2
18
3.6 3.6
19'
3.5 3.5
20
3.6 3.6
21
4.1 4.1
22
4.5 4.5
23
3.9 3.9
24
10 10
25
6.4 6.4
26
2.6 2.6
27
2.9 2.9
28
5.1 5.1
29
5.2 5.2
30
4.3 4.3
31
6.7 6.7
32
2.9 2.9
33
4 2.3 2.3
34
2.4 2.4
35
2.9 2.9
36
3.6 3.6
37
3.7 3.7
38
3.7 3.7
39'
23 23
40
6.6 6.6
41
4.3 4.3
42
5.5 5.5
43
4.2 4.2
44
5.9 5.9
45
4.7 4.7
46
15 15
47
7 7
48
5.1 5.1
49
4.5 4.5
50
6.8 6.8
51
7.4 7.4
52
9.2 9.2
53
3.6 3.6
54
4.6 4.6
55
3.6 3.6
56
3.4 3.4
57
3.6 3.6
58
3.9 3.9
5.0910
0.6475
58
1.00
23.0 ug/L
23.0 ug/L
24112 RPA 2014.xlsm, data
6/26/2014

REASONABLE POTENTIAL ANALYSIS
12
Lead
Date Data
BDL=1/2DL
Results
1
<
0.5
0.25
Std Dev.
2
<
0.5
0.25
Mean
3
<
0.5
0.25
C.V.
4
<
0.5
0.25
n
5
<
0.5
0.25
6
<
0.5
0.25
Mult Factor =
7
<
0.5
0.25
Max. Value
8
<
0.5
0.25
Max. Pred Cw
9
<
0.5
0.25
10
<
0.5
0.25
11
<
0.5
0.25
12
<
0.5
0.25
13
<
0.5
0.25
14
<
0.5
0.25
15
0.5
0.5
16
<
0.5
0.25
17
<
0.5
0.25
18
<
0.5
0.25
19
<
0.5
0.25
20
<
0.5
0.25
21
<
0.5
0.25
22
<
0.5
0.25
23
<
0.5
0.25
24
<
0.5
0.25
25
<
0.5
0.25
26
<
0.5
0.25
27
<
0.5
0.25
28
0.5
0.5
29
<
0.5
0.25
30
<
0.5
0.25
31
<
0.5
0.25
32 .
<
0.5
0.25
33
0.5
0.5
34
<
0.8
0.4
35
<
0.5
0.25
36
<
0.5
0.25
37
<
0.5
0.25
38
<
0.5
0.25
39
<
0.5
0.25
40
<
0.5
0.25
41
<
0.5
0.25
42
<
0.5
0.25
43
<
0.5
0.25
44
<
0.5
0.25
45
<
0.5
0.25
46
<
0.5
0.25
47
<
0.5
0.25
48
<
0.5
0.25
49
<
0.5
0.25
50
<
0.5
0.25
51
<
0.5
0.25
52
<
0.5
0.25
53
<
0.5
0.25
54
<
0.5
0.25
55
<
0.5
0.25
56
<
0.5
0.25
57
<
0.5
0.25
58
<
0.5
0.25
0.2655
0.2209
58
1.00
0.5 ug/L
0.5 ug/L
15
Nickel
Date Data
BDL=1/2DL
Results
1
Std Dev.
2
Mean
3
3.9
3.9
C.V.
4
3.6
3.6
n
5
3.2
3.2
6
3.6
3.6
Mu It Factor=
7
3.7
3.7
Max. Value
8
3.2
3.2
Max. Pred Cw
9
3.7'
3.7
10
3.9
3.9
11
4.8
4.8
12
27.0
27
13
12.0
12
14
7.7
7.7
15
8.2
8.2
16
6.8
6.8
17
6.7
6.7
18
5.2
5.2
19
12.0
12
20
18.0
13
21
8.6
8.6
22
8.8
8.8
23
6.8
6.8
24
5.7
5.7
25
6.6
6.6
26
6.4
6.4
27
6.8
6.8
28
6.4
6.4
29
5.7
5.7
30
7.7
7.7
31
11.0
11
32
11.0
11
33
8.8
8.8
34
11.0
11
35
12.0
12
36
13.0
13
37
12.0
12
38
9.6
9.6
39
13.0
13
40
12.0
12
41
9.7
9.7
42
8.0
8
43
7.4
7.4
44
7.3
7.3
45
7.4
7.4
46
10.0
10
47
11.0
11
48
10.0
10
49
9.8
9.8
50
7.8
7.8
51
8.4
8.4
52
8.5
8.5
53
7.7
7.7
54
6.2
6.2
55
7.7
7.7
56
9.4
9.4
57
7.7
7.7
58
9.4,
9.4
3.7399
8.3661
0.4470
56
1.01
27.0
27.3
24112 RPA 2014.xism, data
-2- 6/26/2014

REASONABLE POTENTIAL ANALYSIS
ug/L
ug/L
Date Data
BDL=1/2DL
1 31
31
2 30.1
30.1
3 28.7
28.7
4 31.2
31.2
5 26
26
6 29.8
29.8
7 23
23
8 34
34
9 26
26
10 23
23
11 25
25
12 23
23
13 24
24
14 34
34
15 30
30
16 30
30
17 37
37
18 36
36
19 36
36
20 34
34
21 38
38
22 46
46
23 39
39
24 40
40
25 36
36
26 29
29
27 35
35
28 33
33
29 31
31
30 25
25
31 33
33
3222
22
33 21
21
34 23
23
35 22
22
36 28
28
37 33
33
38 21
21-
39 29
29
40 27
27
41 33
33
42 21
21
43 28
28
44 28
28
45 30
30
46 45
45
47 46
46
48 37
37
49 38
38
50 36
36
51 33
33
52 51
51
53 32
32
54 30
30
55 22
22
56 28
28
57 23
23
58 27
27
Results
Std Dev.
6.8129
Mean
30.8759
C.V.
0.2207
n
58
Mu It Factor =
1.00
Max. Value
51.0 ug/L
Max. Fred Cw
51.0 ug/L
-3-
24112 RPA 2014.x1sm, data
6/26/2014

2014 Freshwater RPA - 95% Probability/95% Confidence
MAXIMUM DATA POINTS = 58
( REQUIRED DATA ENTRY
LU
Table 1. Project Information Table 2. Parameters of Concern
a
❑ CHECK IF HQW OR ORW WQS Plante Type Chronic Modifier Acute PQL Units g
Facility Name
Thomasville
Par01
WWTPIWTP Class
Par02
NPDES Permit
Par03
NCO024112
Outfal I
Par04
001
Flow, Qw (MGD)
Paro5
6.000
Hamby Creek
Receiving Stream
Par06
Stream Class
Par07
c
7Q10s (cfs)
Paros
......,r;
0.43
7Q10w (cfs)
i
JZ111 Par09
1.30
30Q2 (cfs)
; Par10
1.70
QA (cfs)
12.00
Cili Par11
1 Q10s (cfs)
Par12
4r�C? .:
Data Source(s)
Par13
Par14
Par15
❑ CHECK TO APPLY MODEL
Par16
Par17
To appy Model IWC %
Flow, Qw (MGD) entered
Par16
�11Q�ICt%f13fOfl18ta9I1tC}IftJSbXrI9L858
mexra l+stha avallble olore�s qn
-d!�►PdD►�+rx taaCtu WIIJ provide a 11st jtau may seleGHis
from Errortnassaga aCCUt lfda(a er7#r)rc{OS#d(
1i70I lllptlt Crlt6t71a1
adjust 7Q10s (cfs) value
until chronic IWC %omRlen
obtained. 1 Q 10s (cfs)
defined by program.
Par19
Parzo
Par21
Par22
2
230
2,000
88
■❑I
24112 RPA 2014.xlsm, input
6/26/2014

6/26/14 WQS = 12 ng/L
Facility Name: Thomasville - Hamby Creek
otal Mercury 1631E PQL = 0.5 ng/L
Date Modifier Data Entry
Value
2012
<
1
0.5
2012
1.14
1.14
2012
1.37
1.37.
2012
1.13
1.13
2012
<
1
0.5
2012
<
1
0.5
2012
1.03
1.03
2012
<
1
0.5
2012
<
1
0.5
2012
<
1
0.5
2012
<
1
0.5
2012
1.78
1.78
2012
1.18
1.18
2012
1.64
1.64
2012
1.01
1.01
2012
1.64
1.64
2012
<
1
0.5
2012
1.94
1.94
2012
1
1
2012
2.22
2.22
2012
2.99
2.99
2012
1.37
1.37
2012
1.92
1.92
2012
1.67
1.67
2012
<
1
0.5
2012
<
1
0.5
2012
4.51
4.51
2012
1.58
1.58
2012
1.14
1.14
2012
<
1
0.5
2012
<
1
0.5
2012
1.1
1.1
2012
2.1
2.1
2012
<
1
0.5
2012
1.1
1.1
2012
<
1
0.5
2012
1.17
1.17
2012
<
1
0.5
2012
<
1
0.5
2012
<
1
0.5
2012
<
1
0.5
2012
<
1
0.5
2012
<
1
0.5
2012
<
1
0.5
2012
<
1
0.5
MERCURY WQBEL/TBEL EVALUATION
j No Limit Required
_1
MMP Required
70.10s = 0.043 , cfs WQBEL
Permitted Flow = 6.000
V:2013-5
12.06 ng/L
47 ne/L

2012
<
1
0.5
2012
<
1
0.5
2012
<
1
0.5
2012
<
1
0.5
2012
1.19
1.19
2012
<
1
0.5
2013
1.19
1.19
2013
<
1
0.5
2013
<
1
0.5
2013
2.62
2.62
2013
<
1
0.5
2013
<
1
0.5
2013
<
1
0.5
2013
<
1
0.5
2013
3.97
3.97
2013
<
1
0.5
2013
1
1
2013
1.04
1.04
2013
1.3
1.3
2013
1
1
2013
1.86
1.86
2013
<
1
0.5
2013
<
1
0.5
2013
1
1
2013
2.48
2.48
2013
1.86
1.86
2013
1.53
1.53
2013
1.57
1.57
2013
<
1
0.5
2013
1.31
1.31
2013
1
1
2013
1.52
1.52
2013
1.01
1.01
2013
<
1
0.5
2013
<
1
0.5
2013
1.15
1.15
2013
1.27
1.27
2013
<
1
0.5
2013
2.55
2.55
2013
<
1
0.5
2013
<
1
0.5
2013
<
1
0.5
2013
<
1
0.5
2013
<
1
0.5
2013
1.15
1.15
2013
<
1
0.5
2013
<
1
0.5
2013
1.12
1.12
2013
<
1
0.5
2013
<
1
0.5
2013
<
1
0.5
2013
<
1
0.5

2013 <
1
0.5
2013
1.87
1.87
2013
1.28
1.28
2013
1.59
1.59
2013
2.44
2.44
2013
1
1
2013
1.34
1.34
2014 <
1
0.5
2014
3.47
3.47
2014
2.02
2.02
2014
1.99
1.99
2014
1.34
1.34
2014
1.03
1.03
2014
1.72
1.72
2014
1
1 ,
2014
1.19
1.19
2014
1.14
1.14
2014
1.5
1.5
2014
2.67
2.67
2014 <
1
0.5
2014
1.68
1.68
2014 <
1
0.5
2014
1.14
1.14
2014
2.15
2.15

S.S. MANHOLE
NO.2 ERN, INFLUENT
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wr
To WASTE
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SCREENINGS
N01""O SOLIDS COMPACTED SOLIDS TO LANDFILL
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SECONDARY
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rwe 1
FINAL CLARIFIER ' ' ' FILTER BACKWASH
NO.1 �� PUMPING STATION
�' RLTM' Oo-mVAsx J J
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WASTE DRAIN
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OTHER FLOM
CHEMICf
Main Process Flow Diagram
jHamby Creek Wastewater Treatment Plant

Number of non -categorical SIUs. 2
Number of Cl Us. 4 .
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: Advanced Motorsports Coatings
Mailing Address: 17 High Tech Blvd
Thomasville NC 27360
FA Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Anodized aluminum coatings (Type II and Type III) of small parts along with some dyeing of parts
FA Principal Product(s) and Raw Materials) Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s)• Anodized aluminum parts for the motorsport industry
Raw material(s)• Coating of pre -manufactured parts
FA Flow Rate.
a. Process wastewater flow rate Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (qpd) and whether the discharge is continuous or intermittent.
4,500 qpd (X continuous or intermittent)
Non -process wastewater flow rate Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (qpd) and whether the discharge is continuous or intermittent.
500 qpd ( continuous or X intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a Local limits X Yes ❑ No
b Categorical pretreatment standards X Yes ❑ No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 45 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
.HAMBY CREEK WWTP, NC0024112, RENEWAL YADKIN PEE DEE
F 8 Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets interference) at the treatment works in the past three years?
❑ Yes X 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 X 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
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.) X No
F 13 Waste Origin Describe the site and type of facility at which the CERCLAIRCRA/or other remedial waste originates (or is excepted to origniate in
the next five years).
F 14 Pollutants List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
a. Is this waste treated (or will be treated) prior to entering the treatment works?
❑ Yes ❑ No
If yes describe the treatment (provide information about the removal efficiency):
Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous ❑ Intermittent If intermittent, describe discharge schedule.
FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
HAMBY CREEK WWTP, NC0024112, RENEWAL YADFCIN PEE DEE
EPA Form 3510-2A (Rev. 1-99) Replaces EPA forms 7550-6 & 7550-22. Page 46 of 22

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 of an approved pretreatment program?
X 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.
Number of non -categorical SIUs. 2
Number of CIUs. 4
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: Brasscraft - Thomasville
Mailing Address: 1024 Randolph St
Thomasville, NC 27360
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Plating of plumbing valves and fittings
FA 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): Plumbing valves fittings
Raw material(s): Brass copper, nickel chrome plating
F.6. Flow Rate.
C. Process wastewater flow rate Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (qpd) and whether the discharge is continuous or intermittent.
20,000 god (X continuous or intermittent)
Non -process wastewater flow rate Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (qpd) and whether the discharge is continuous or intermittent
6,500 qpd (X continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits X Yes ❑ No
b. Categorical pretreatment standards X Yes ❑ No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99) Replaces EPA forms 7550-6 & 7550-22. Page 47 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
HAMBY CREEK WWTP, NC0024112, RENEWAL YADKIN PEE DEE
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years?
❑ Yes X 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 X 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
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.) X 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).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
C. Is this waste treated (or will be treated) prior to entering the treatment works?
M Yes ❑ No
If yes describe the treatment (provide information about the removal efficiency):
d. Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous ❑ Intermittent If intermittent, describe discharge schedule.
FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
HAMBY CREEK WWTP, NC0024112, RENEWAL YADKIN PEE DEE
EPA Form 3510-2A (Rev. 1-99) Replaces EPA forms 7550-6 & 7550-22. Page 48 of 22

SWPPLWeNTAL APPLICATION:INFQRMATION
PART i=iINDUSiRIAL3USER:DISCHARGES`AND. RCRAlCERCLA 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 ot, an approved pretreatment program?
X 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.
e. Number of non -categorical SIUs. 2
f. Number of CIUs. 4
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: Custom Drum Services
Mailing Address: P.O Box 7072
High Point, NC 27264
FA Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Reconditions steel and plastic drums and totes by chemical treating and washing them out.
FA 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): Reconditioned steel and plastic drums and totes
Raw material(s): sodium hydroxide, water, paints, boiler chemicals
FA Flow Rate.
e. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (qpd) and whether the discharge is continuous or intermittent.
5,000 qpd ( continuous or X intermittent)
f. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (qpd) and whether the discharge is continuous or intermittent.
210 qpd ( continuous or X intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits X Yes ❑ No
b. Categorical pretreatment standards ❑ Yes X No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 49 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
.HAMBY CREEK WWTP, NC0024112, RENEWAL YADKIN PEE DEE
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets interference) at the treatment works in the past three years?
❑ Yes X 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 X 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
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.) X 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).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
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):
Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous ❑ Intermittent If intermittent, describe discharge schedule.
FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
HAMBY CREEK WWTP, NC0024112, RENEWAL YADKIN PEE DEE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 50 of 22

l
_
,SU ,,LEIV�ENTAL ARPLic&tdNFINFDRMATIfJN
PART F-JNDUS;I"RIAL USER°DI!§& ," ' GES'ANCf. kCRArCERGLA�WASTES
�..:,.
All treatment works receiving discharges from sianificant 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 subiect ot, an approved pretreatment program?
X 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.
g. Number of non -categorical SIUs. 2
h. Number of Cl Us. 4
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: Finch Industries, Inc..
Mailing Address: PO Box 1847
Thomasville, NC 27361
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Mirror manufacturing, glass fabrication, and screen printing
F.5. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Mirror manufacturing, glass fabrication, and screen printing
Raw material(s): Glass, paint, silver, copper, inks
F.6. Flow Rate.
g. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (qpd) and whether the discharge is continuous or intermittent.
29,000 qpd (X continuous or intermittent)
h. Non -process wastewater flow rate Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (qpd) and whether the discharge is continuous or intermittent.
2,500 qpd ( continuous or X intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subiect to the following:
a. Local limits X Yes ❑ No
b. Categorical pretreatment standards X Yes ❑ No
If subiect to categorical pretreatment standards, which category and subcategory?
433
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 51 of 22

a
FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
HAMBY CREEK WWTP, NC0024112, RENEWAL YADKIN PEE DEE
F 8 Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years?
❑ Yes X 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 X 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
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.) X 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).
F 14 Pollutants List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
9. Is this waste treated (or will be treated) prior to entering the treatment works?
M Yes ❑ No
If yes describe the treatment (provide information about the removal efficiency):
Is the discharge (or will the discharge be) continuous or intermittent?
Fl Continuous ❑ Intermittent If intermittent, describe discharge schedule.
FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
HAMBY CREEK WWTP, NC0024112, I RENEWAL YADKIN PEE DEE
EPA Form 3510-2A (Rev. 1-99) Replaces EPA forms 7550-6 & 7550-22. Page 52 of 22

4
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 ot, an approved pretreatment program?
X 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.
Number of non -categorical SIUs. 2
Number of CIUs. 4
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: Gresco Manufacturing, Inc.
Mailing Address: 216E Holly Hill Rd
Thomasville, NC 27360
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Preparation of textile or motorsports chemicals based on blending or synthesis of formulations.
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): Textile auxiliary chemicals and motorsports track coatings
Raw material(s): Surfactants, proprietary chemicals
F.6. Flow Rate.
L Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (qpd) and whether the discharge is continuous or intermittent.
250 qpd ( continuous or X- intermittent)
Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (qpd) and whether the discharge is continuous or intermittent.
2,650 god ( continuous or X - intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits X Yes ❑ No
b. Categorical pretreatment standards ❑ Yes X No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99) Replaces EPA forms 7550-6 & 7550-22. Page 53 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
HAMBY CREEK WWTP, NC0024112, RENEWAL YADKIN PEE DEE.
F 8 Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years?
❑ Yes X 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 dr has it in the past three years received RCRA hazardous waste by truck, rail or dedicated pipe?
❑ Yes X 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
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.) X 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).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
i. 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):
j. Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous ❑ Intermittent If intermittent, describe discharge schedule.
FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
HAMBY CREEK WWTP, NC0024112, I I RENEWAL YADKIN PEE DEE
EPA Form 3510-2A (Rev. 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 54 of 22

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 of an approved pretreatment program?
X 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.
Number of non -categorical SIUs. 2
Number of Cl Us. 4
SIGNIFICANT INDUSTRIAL USER INFORMATION:
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: McIntyre Metals Inc.
Mailing Address: 310 Kendall Mill Rd
Thomasville, NC 27360
FA Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Manufacture of metal display racks
F 5 Principal Product(s) and Raw Material(s) Describe all of the principal• processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Metal displays from wire tube and sheet metal
Raw material(s)• Steel Aluminum bowder coatings cleaning materials
F.6. Flow Rate.
k. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (qpd) and whether the discharge is continuous or intermittent.
3920 qpd ( continuous or X intermittent)
Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (qpd) and whether the discharge is continuous or intermittent.
720 qpd ( continuous or X intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subiect to the following:
a. Local limits X Yes ❑ No
b. Categorical pretreatment standards X Yes ❑ No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99) Replaces EPA forms 7550-6 & 7550-22. Page 55 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED:
HAMBY CREEK WWTP, NC0024112, RENEWAL YADKIN PEE DEE
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years?
❑ Yes X 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 X 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
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?
CI Yes (complete F.13 through F.15.) X 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).
F 14 Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
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):
Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous ❑ Intermittent If intermittent, describe discharge schedule.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 56 of 22