NC0031879_Permit Issuance_20160328

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INIC?:;;;
Water Resources
ENVIRONMENTAL QUALITY
March 28, 2016
Mr. Robert Boyette, City Manager
City of Marion
PO Box 700
Marion, North Carolina 28752
PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Secretary
S. JAY ZIMMERMAN
Director
Subject: Final NPDES Permit Renewal
Permit NC0031879
Corpening Creek WWTP
McDowell County
Class III Facility
Dear Mr. Boyette:
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).
This final permit contains the following changes from your previous permit:
• Effluent limits and monitoring requirements for a flow tier of 2.5 MGD were added to the
permit. This corresponds to a change in classification from Class IV to Class III. The
limits for ammonia, cyanide and whole effluent toxicity are based on 63% IWC.
Monitoring frequency for effluent parameters has been reduced accordingly. The draft
permit listed the monitoring frequency for temperature for the 2.5 MGD flow tier as
Daily. The correct frequency is 3/Week. The final permit was corrected.
• As a result of a reasonable potential analysis (RPA) limits and monitoring for cadmium
and monitoring for silver were eliminated from the effluent monitoring requirements.
• Mercury data were evaluated according to the Mercury TMDL Permitting Guidance to
determine the need for a mercury limit or a Mercury Minimization Plan (MMP). No limit
is required for your facility. A special condition was added to the permit with
requirements for developing a MMP. See Special Condition A. (6).
• Based on the reassessment of data for Lake Rhodhiss resulting in the removal of the lake
from the 303(d) list, effluent monitoring for total nitrogen and total phosphorous will be
modified to monthly and instream monitoring for these parameters were removed.
• Starting December 21, 2016, 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
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919 807 6300

Page 12
the Environmental Protection Agency (EPA). The final NPDES Electronic Reporting
Rule was adopted and became effective on December 21, 2015.
The requirement to begin reporting discharge monitoring data electronically using the NC
DWR's Electronic Discharge Monitoring Report (eDMR) internet application has been
added to your final NPDES permit. See Special Condition A (5). For information on
eDMR, registering for eDMR and obtaining an eDMR user account, please visit the
following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr.
For more information on EPA's final NPDES Electronic Reporting Rule, please visit the
following web site:
http://www2.epa.gov/compliance/final-national pollutant-discharge-elimination-system-
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 any other Federal, State, or Local governmental permits that may be required.
If you have any questions concerning this permit, please contact Teresa Rodriguez at (919) 807-
6387 or via email at [e-mail].
Hardcopy:
Ecopy:
S. Jay Zimmerman, P.G.
Director, Division of Water Resources, NCDEQ
NPDES Files
Central Files
DWR/Asheville Regional Office / Water Quality
US EPA Region 4
DWR/Aquatic Toxicology Branch/Susan Meadows

Permit NC0031879
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
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,
City of Marion
is hereby authorized to discharge wastewater from a facility located at
Corpening Creek WWTP
3982 Hwy 226 South
Marion, NC
McDowell County
to receiving waters designated as Youngs Creek (Corpening Creek) in the Catawba River Basin in accordance
with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III; and IV
hereof.
This permit shall become effective on May 1, 2016.
This permit and authorization to discharge shall expire at midnight on January 31, 2020.
Signed this day March 28, 2016.
ay Zimmerman, P.G.
✓Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 11

Permit NC0031879
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.
City of Marion is hereby authorized to:
1. Continue to operate an existing 3.0 MGD wastewater treatment facility consisting of the following
components:
• Influent pump station
• Bar screen
• Grit removal
• Primary clarifiers
• Aeration basins
• Secondary clarifiers
• Gravity sludge thickeners
• Chlorination
• Dechlorination
The facility is located at the Corpening Creek WWTP, 3982 Highway 226 South, Marion, McDowell
County.
2. Discharge from said treatment works at the location specified on the attached map into Youngs
- Creek (Corpening Creek) which is classified C waters in the Catawba River Basin.
Page 2 of 11

Permit NC0031879
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B
.0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of the permit and lasting until average annual flow exceeds
2.0 MGD or until expiration, the Permittee is authorized to discharge wastewater treatment plant effluent
from outfall number 001. Such discharges shall be limited and monitored' by the Permittee as specified
below:
.
PARAMETER
r LIMITS, s t :
MONITORINNG :REQUIREMENTS ..
= Monthly
. Average •_
Weekly..:
Average
° Daily`
Maximum
' Me'asutement "r
' Frequency.
. S Inn- e
Type
' Sample
Locatoon2
Flow
_ 2.5 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C 3
30.0 mg/L
45.0 mg/L
3/Week
Composite
E, I
Total Suspended Solids 3
30.0 mg/L
45.0 mg/L'
3/Week
Composite
E, I
3 H3 as N (April 1-Oct.
1.5 mg/L
4.4 mg/L
3/Week
Composite
E
3 H3 as N (Nov. 1-March
3.3 mg/L
9.8 mg/L
3/Week
Composite
E
Dissolved Oxygen
Daily average
not less than 5.0 mg/L
3/Week
Grab
E
Fecal Coliform (geometric
mean)
200/100
mL
400/100
mL
3/Week
Grab
E
pH
Between 6.0 and 9.0 SU
3/Week
Grab
E
Total Residual Chlorine 4
27 µg/L
3/Week
Grab
E
Temperature
3 /Week
Grab
E
Total Nitrogen (mg/1)
Monthly
Composite
E
Total Phosphorus (mg/1)
Monthly
Composite
E
Total Cyanide
8.0 µg/L
33.0 µg/L
Monthly
Grab
E
Total Copper (µg/L)
Quarterly
Composite
E
Total Zinc (µg/L)
Quarterly
Composite
E
Chronic Toxicity 5
Quarterly
Composite
E
Effluent Pollutant Scan
Monitor and Report
Footnote 6
Footnote 6
E
Dissolved Oxygen
Footnote 2
Grab
U, D
Temperature (°C)
Footnote 2
Grab
U,D
Notes:
1. Effective December 16, 2016, begin submitting discharge monitoring reports electronically using NC
DEQ's eDMR application system. See Special Condition A. (5).
2. Sample locations: E - Effluent, I — Influent, U - Upstream 100 ft, D - Downstream at NCSR 1794
(Clinchfield Road). Upstream and downstream monitoring shall be grab samples and shall be conducted
3/week during June, July, August, and September and 1/week during the rest of the year.
3. The monthly average BOD5 and TSS concentrations shall not exceed 15% of the respective influent
value (85% removal).
4. The Division shall consider all effluent TRC values reported below 50 µg/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 even if these values fall below 50 µg/L.
5. Chronic Toxicity (Ceriodaphnia) P/F at 63%; February, May, August, and November. See Special
Condition A (3).
6. The permittee shall perform three Effluent Pollutant Scans during the term of this permit. See Special
Condition A. (4).
Page 3 of 11

Permit NC0031879
There shall be no discharge of floating solids or foam visible in other than trace amounts.
A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B
.0400 et seq., 02B .0500 et seq.]
During the period beginning when annual average flow exceeds 2.0 MGD and lasting until expiration, the
Permittee is authorized to discharge wastewater treatment plant effluent from outfall number 001. Such
discharges shall be limited and monitored by the Permittee as specified below:
PARAWTER
_ s
. <LIMI S':_.: ' .
. MOM I'F®RINGRE,QUIRE
: :1Vleasurenien
' V q n0
f'_.:Samp1e-
Type
VlENTS.
-'Saniiple'__
t - i
Location
Monthly
Average;
`Weekly •Dail.
' -Average
. Maximum
....,_..
Flow
3.0 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C 2
30.0 mg/L
45.0 mg/L
Daily
Composite
E, I
Total Suspended Solids 2
30.0 mg/L
45.0 mg/L
Daily
Composite
E, I
NH3 as N (Apri11-Oct.
31)
1.4 mg/L
4.2 mg/L
Daily
Composite
E
NH3 as N (Nov. 1-March
31)
3.0 mg/L
9.0 mg/L
Daily
Composite
E
Dissolved Oxygen
Daily average
not less than 5.0 mg/L
Daily
Grab
E
Fecal Coliform (geometric
mean)
200/100
mL
400/100
mL
Daily
Grab
E
pH
Between 6.0 and 9.0 SU
Daily
Grab
• E
Total Residual Chlorine 3
25 µg/L
Daily
Grab
E
Temperature (°C)
Daily
Grab
E
Total Nitrogen (mg/1)
Monthly
Composite
E
Total Phosphorus (mg/1)
Monthly
Composite
E
Total Cyanide
7.5 µg/L
31.1 µg/L
Monthly
Grab
E
Total Copper (µg/L)
Quarterly
Composite
E
Total Zinc (µg/L)
Quarterly
Composite
E
Chronic Toxicity 4
Quarterly
Composite
E
Effluent Pollutant Scan
Monitor and Report
Footnote 5
Footnote 5
E
Dissolved Oxygen
Footnote 2
Grab
U, D.
Temperature (°C)
Footnote 2
Grab
U,D
Notes:
1. Sample locations: E - Effluent, I — Influent, U - Upstream 100 ft, D - Downstream at NCSR 1794
(Clinchfield Road). Upstream and downstream monitoring shall be grab samples and shall be
conducted 3/week during June, July, August, and September and 1/week during the rest of the year.
2. The monthly average BOD5 and TSS concentrations shall not exceed 15% of the respective influent
value (85% removal).
3. The Division shall consider all effluent TRC values reported below 50 µg/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 even if these values fall below 50 pg/L.
4. Chronic Toxicity (Ceriodaphnia) P/F at 67%; February, May, August, and November. See Special
Condition A (3).
Page 4 of 11

Permit NC0031879
5. The permittee shall perform three Effluent Pollutant Scans during the term of this permit. See Special
Condition A. (4).
There shall be no discharge of floating solids or foam visible in other than trace amounts.
A. (3) CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY) [15A NCAC 02B
.0200 et seq.]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality
to Ceriodaphnia dubia at an effluent concentration of 63% (2.5 MGD) or 67 % (3.0 MGD).
The permit holder shall perform at a minimum,• quarterly monitoring using test procedures outlined in the
"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or subsequent
versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised- December
2010) or subsequent versions. The tests will be performed during the months of 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
1623 Mail Service Center
Raleigh, North Carolina 27699-1623
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days
after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate
signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is
employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form
indicating the facility name, permit number, pipe number, county, and the month/year of the report with the
notation of "No Flow" in the comment area of the form. The report shall be submitted to the Water
Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will
be required during the following month. Assessment of toxicity compliance is based on the toxicity testing
Page 5 of 11

Permit NC0031879
quarter, which is the three month time interval that begins on the first day of the month in which toxicity
testing is required by this permit and continues until the final day of the third month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Resources indicate potential impacts to the receiving stream, this permit may be re -opened and
modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls, shall
constitute an invalid test and will require immediate follow-up testing to be completed no later than the last
day of the month following the month of the initial monitoring.
Page 6 of 11

Permit NC0031879
A. (4) EFFLUENT POLLUTANT SCAN [G.S. 143215.1(b)]
The Permittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed below. One scan
must beperformed in each of the following years: 2016, 2017, and 2018. 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)
Chlorine (total residual, TRC)
Dissolved oxygen
Nitrate/Nitrite
Kjeldahl nitrogen
Oil and grease
Phosphorus
Total dissolved solids
Hardness
Antimony
Arsenic
Beryllium
Cadmium
Chromium
Copper
Lead
Mercury (EPA Method 1631E)
Nickel
Selenium
Silver
Thallium
Zinc
Cyanide
Total phenolic compounds
Volatile organic compounds:
Acrolein
Acrylonitrile
Benzene
Bromoform
Carbon tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane
2-chloroethylvinyl ether
Chloroform
Dichlorobromomethane
1,1-dichloroethane
1,2-dichloroethane
Trans-1,2-dichloroethylene
1,1-dichloroethylene
1,2-dichloropropane
1,3-dichloropropylene
Ethylbenzene
Methyl bromide
Methyl chloride
Methylene chloride
1,1,2,2-tetrachloroethane
Tetrachloroethylene
Toluene
1,1,1-trichloroethane
1,1,2-trichloroethane
Trichloroethylene
Vinyl chloride
Acid -extractable compounds:
P-chloro-m-cresol
2-chlorophenol
2,4-dichlorophenol
2,4-dimethylphenol
4,6-dinitro-o-cresol
2,4-dinitrophenol
2-nitrophenol
4-nitrophenol
Pentachlorophenol
Phenol
2,4,6-trichlorophenol
Base -neutral compounds:
Acenaphthene •
Acenaphthylene
Anthracene
Benzidine
Benzo(a)anthracene
Benzo(a)pyrene
3,4 benzofluoranthene
Benzo(ghi)perylene
Benzo(k)fluoranthene
Bis (2-chloroethoxy) methane
Bis (2-chloroethyl) ether
Bis (2-chloroisopropyl) ether
Bis (2-ethylhexyl) phthalate
4-bromophenyl phenyl ether
Butyl benzyl phthalate
2-chloronaphthalene
4-chlorophenyl phenyl ether
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenzo(a,h)anthracene
1,2-dichlorobenzene
1,3-dichlorobenzene
1,4-dichlorobenzene
3,3-dichlorobenzidine
Diethyl phthalate
Dimethyl phthalate
2,4-dinitrotoluene
2,6-dinitrotoluene
1,2-diphenylhydrazine
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocydo-pentadiene
Hexachloroethane
Indeno(1,2,3:cd)pyrene
Isophorone
Naphthalene
Nitrobenzene
N-nitrosodi-n-propylamine
N-nitrosodimethylanune
N-nitrosodiphenylamine
Phenanthrene
Pyrene
1,2,4-trichlorobenzene
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 DEQ / DWR / Central Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-
1617.
Page 7 of 11

Permit NC0031879
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 122.21(j)(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
1623 Mail Service Center
Raleigh, North Carolina 27699-1623
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. (5) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [G.S. 143-
215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports
and specify that, if a state does not establish a system to receive such submittals, then permittees must submit
monitoring data and reports electronically to the Environmental Protection Agency (EPA). The final NPDES
Electronic Reporting Rule was adopted and became effective on December 21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this permit
(Standard Conditions for NPDES Permits):
• Section B. (11.)
• Section D. (2.)
• Section D. (6.)
• Section E. (5.) .
Signatory Requirements
Reporting
Records Retention
Monitoring Reports
1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)1
Effective December 21, 2016, the permittee shall report 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 berequired to complete the eDMR
submission by printing, signing, and submitting one signed original and a copy of the computer printed eDMR
to the following address:
NC DENR / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Page 8 of 11

Permit NC0031879
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. See "How to Request a
Waiver from Electronic Reporting" section below.
Regardless of the submission method, the first DMR is due on the last day of the month following the issuance
of the permit or in the case of a new facility, on the last day of the month following the commencement of
discharge.
Starting on December 21, 2020, the permittee must electronically report the following compliance monitoring
data and reports, when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment -Program Annual Reports; and
• Clean Water Act (CWA) Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver from the Division (see "How to Request a Waiver from
Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of each
electronic submission. The permittee should use the EPA's website resources to identify the initial recipient
for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity (EPA or
the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving
electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of
electronic submission and for each state. Instructions on how to access and use the appropriate electronic
reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at:
http://www2.epa.gov/compliance/final-national-pollutant-discharge-el im ination-system-npdes-electronic-
reporting-rule.
Electronic submissions must start by the dates listed in the "Reporting Requirements" section above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic
reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division.
Requests for temporary electronic reporting waivers 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
submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall
thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division
unless the permittee re -applies for and is granted a new temporary electronic reporting waiver by the Division.
Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting
waiver request may submit monitoring data and reports on paper to the Division for the period that the
approved reporting waiver request is effective.
Page 9 of 11

Permit NC0031879
Information on eDMR and the application for a temporary electronic reporting waiver are found on the
following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)1
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://deq.nc.gov/about/divisions/water-resources/edmr
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 certiA 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 qual fled personnel properly gather and
evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fines and imprisonment for knowing violations."
5. Records Retention [Supplements Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These
records or copies shall be maintained for a period of at least 3 years from the date of the report. This period
may be extended by request of the Director at any time [40 CFR 122.41].
A. (6) MERCURY MINIMIZATION PLAN
The permittee will develop and implement a mercury minimization plan during the term of this permit. The
MMP shall be developed 180 days from the effective day of the permit, and shall be available for inspection
on -site. A sample M114P 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 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. Performance of the
Mercury Minimization Plan will meet the requirements of the TMDL (Total Maximum Daily Load)
for mercury approved by USEPA on October 12, 2012, unless and until a Waste Load Allocation
specific to this facility is developed and this NPDES permit is amended to require further actions to
address the Waste Load Allocation.
Page 10 of 11

Permit NC0031879
Town of Marion — McDowell County
Latitude: 35°39'04"
Longitude: 081°57'29"
Quad #: Marin East
Receiving Stream: Youngs Fork
Stream Class: C
Sub -Basin: 03-08-30
8-Digit HUC: 03050101
Permitted Flow: 2.5/3.0 MGD
Facility Location (not to scale)
NPDES Permit No. NC0031879
Page 11 of 11

DEQ/DWR
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0031879
Facility Information
Applicant/Facility Name:
City of Marion/Corpening Creek WWTP
Applicant Address:
P. O. Box 700, Marion, NC 28752
Facility Address:
3982 Hwy 226 South, Marion, NC 28752
Permitted Flow
3.0 MGD/2.5 MGD
Type of Waste:
Domestic y 3
T
Facility/Permit Status:
Class 3 MGD)/Clas (2.5 MGD) / Renewal
, II 6County:
i
Mc owell
Miscellaneous
Receiving Stream:
Corpening Creek
(Youngs Creek)
Sub -basin
03-08-30
Stream Classification:
C
HUC:
03050101
303(d) Listed?
Yes
State Grid:
E11NW
Drainage Area (mi2):
8.28
USGS Quad:
Marion East
Summer 7Q10 (cfs)
2.3
Latitude:
35° 39' 04"
Winter 7Q10 (cfs)
3.6
Longitude:
81° 57' 29"
Average Flow (cfs):
12
Regional Office:
Asheville
30Q2:
6
Permit Writer:
Teresa Rodriguez
IWC (%):
67
Date:
1/20/2016
SUMMARY
The City of Marion operates the Corpening Creek WWTP with a current permitted flow of 3.0 MGD. The
facility consists of bar screen, grit removal, dual primary clarifiers, dual aeration basins, dual secondary
clarifiers, chlorination and dechlorination. The current permit was issued on November 4, 2011 and
expired on January 31, 2015. There are no industrial users and therefore the City doesn't operate a pre-
treatment program. Average flows are not near the plant capacity. Current average flows are below 1
MGD. The City requested to include a flow tier for 2.5 MGD due to the sustained lower average flows.
The average monthly in the last two years was approximately 0.8 MGD.
During the last permit renewal weekly effluent monitoring and monthly instream monitoring for total
nitrogen and total phosphorous were included in the permit due to the impairment of Lake Rhodhiss
(2010 NC 303(d) List). Corpening Creek is within the lake's drainage basin. Lake Rhodhiss was listed as
impaired for pH due to excessive algal production. To address the impairment a permitting strategy was
developed in the Basin Plan and applied to all the permits within the drainage basin. Lake Rhodhiss was
assessed in 2012 and taken off the 303(d) list. As a result of the change in the lake impairment status
effluent monitoring for total nitrogen and total phosphorous will be modified to monthly and instream
monitoring for these parameters will be eliminated.
RECEIVING STREAM
This facility discharges to Corpening Creek (also identified in maps as Youngs Creek) [AU 11-32-1-4a] in
the Catawba River Basin, classified C waters. Corpening Creek is listed in the NC 2014 303(d) list for
benthos and fish community.
DMR COMPLIANCE REVIEW
DMR were reviewed for the period of January 2011 to October 2015. Data are summarized in Table 1.
Fact Sheet
NPDES NC0031879 Permit Renewal
Page 1

Table 1. Data Summa
Parameter
Units
;AVerage .
M•ax
Min
Flow
MGD
0.895
4.825
0.252
BOD
mg/1
8.6
430
< 2
NH3N (summer)
mg/1
2.9
22
< 0.5
NH3N (winter)
mg/1
1.2
12
< 0.5
TSS
mg/1
25
5660
< 10
pH
SU
6.4
7.5
5
Temperature
°C
17
25
7
TRC
µg/1
23
584
< 20
TN
mg/1
6.4
38
0.6
TP
mg/1
1.9
19
0.08
Fecal Coliform
#/100 ml
4.19
6000
< 1
Notices of Violations
Several exceedances of permit limits resulted in notices of violation for the facility. NOVs were issued for
17 violations of ammonia limits, four violations of TSS limits, four violations of TRC limits and one
violation of the cyanide daily maximum limit. In the past the facility has been dealing with I/I issues that
surge the treatment system and cause washouts. An aeration basin was converted to an EQ basin to
control the stormwater surges into the treatment system. In addition the City is continuing to work on
sewer rehabilitation. The use of an EQ basin has helped the operation but they still experience occasional
upsets.
Reasonable Potential Analysis
A reasonable potential analysis (RPA) was performed for cyanide, cadmium, copper, silver and zinc.
Copper, cyanide and zinc have reasonable potential to exceed the water quality standards. The limits for
cyanide will remain in the permit as well as monitoring for copper and zinc. See attached RPA table for
results.
A reasonable potential analysis was conducted on effluent toxicant data collected between April 2010 and
October 2015. Based on this analysis, the following permitting actions are proposed for this permit:
• Effluent Limit with Monitoring. The following parameters will receive a water quality -based
effluent limit (WQBEL) since they demonstrated a reasonable potential to exceed applicable
water quality standards/criteria: cyanide
• Monitoring Only. The following parameters will receive a monitor -only requirement since they
demonstrate reasonable potential to exceed applicable action level standards: copper and zinc.
• No Limit or Monitoring: The following parameters will not receive a limit or monitoring, since
they did not demonstrate reasonable potential to exceed applicable water quality
standards/criteria and the maximum predicted concentration was <50% of the allowable
concentration: silver and cadmium.
A spreadsheet of the RPA results is attached to this Fact Sheet.
Mercury Evaluation
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). The facility started collecting data in 2012. Based on dilution the water quality
based effluent limitation (WQBEL) for mercury is 17.5 ng/1. The technology based effluent limit (TBEL) is
47 ng/1. There is not reasonable potential to exceed the mercury limit. The facility had detections above 1
ng/1 over the past three 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.
Fact Sheet
NPDES NC0031879 Permit Renewal
Page 2

Table 2. Mercury Evaluation
.
2012
2013
2014
2015
Mercury Annual Average (ng/1)
5.2
5.0
2.3
4.1
Mercury Annual Max (ng/1)
9.2
7.6
3.4
5.6
Instream Monitoring:
The permit requires instream monitoring at one upstream location and one downstream location. In
addition to dissolved oxygen and temperature, total nitrogen and total phosphorus are also monitored.
Data for dissolved oxygen and temperature are within water quality standards. Total nitrogen and total
phosphorous will be eliminated from the monitoring requirements.
Priority Pollutant Analysis:
The application includes the results of four priority pollutant analyses. No priority pollutants were
detected.
Aquatic Toxicity Testing:
Permit requires chronic toxicity, ceriodaplznia dubia, 67 %. The facility passed all the toxicity tests during
this permit cycle. The draft permit includes tier limits for flows of 2.5 MGD (62%) and 3.0 MGD (67%).
LIMITS AND MONITORING REQUIREMENTS:
Current conditions, as weII as the basis for the limits are summarized in Table 3.
Table 3. Current Conditions and Proposed Changes
Parameters Affected
Permit Conditions*
Basis for Condition/Change
Flow
Added a flow tier for 2.5 MGD
The average flow for the past five years is
less than 1 MGD.
BODS
30 mg/1 MA
45 mg/ 1 DM
Secondary treatment standards/40 CFR
133 / 15A 2B .0406
NH3-N (summer)
3.0 MGD
1.4 mg/1 MA
4.2 mg/1 WA
DWR ammonia toxicity policy 2/5/1990
NH3-N (winter)
3.0 MGD
3.0 mg/1 MA
9.0 mg/1 WA
DWR ammonia toxicity policy 2/5/1990
NH3-N (summer)
2.5 MGD
1.5 mg/1 MA
4.4 mg/1 WA
DWR ammonia toxicity policy 2/5/1990
NH3-N (winter)
2.5 MGD
3.3 mg/1 MA
9.8 mg/1 WA
DWR ammonia toxicity policy 2/5/1990
Total Suspended
Solids
30 mg/I MA
45 mg/1 WA
Secondary treatment standards/40 CFR
133 / 15A 2B .0406
Fecal coliform
200/100 ml MA
400 /100 ml WA
State WQ standards, 15A 2B .0200
Total residual chlorine
3 MGD
25 ug/1 DM
State WQ standards, 15A 2B .0200
Total residual chlorine
2.5 MGD
27 ug/1 DM
State WQ standards, 15A 2B .0200
Dissolved oxygen
Not less than 5 mg/I
State WQ standards, 15A 2B .0200
pH
6 to 9 SU
State WQ standards, 15A 2B .0200
Total cyanide
8 µg/1 MA
33 µg /1 DM
RP, State WQ standards, 15A 2B .0200
Total cadmium
3 µg /1 MA
21.2µg/1DM
No RP, eliminate limits and monitoring
Total copper, total zinc
Quarterly monitoring
No changes
Total Nitrogen/Total
Phosphorus
Effluent Monitoring was modified
from weekly to monthly.
15A 02B .0508
Total Nitrogen/Total
Phosphorus
Instream monitoring was eliminated
Lake Rhodhiss was de -listed from the
303(d) list.
Fact Sheet
NPDES NC0031879 Permit Renewal
Page 3

* MA - Monthly Average WA - Weekly Average DM - Daily Maximum
SUMMARY OF PROPOSED CHANGES:
1. A new effluent page with requirements for of 2.5 MGD was added to the permit. Limits for
ammonia and cyanide are based on 63% IWC.
2. Based on the results of the RPA limits and monitoring for chromium and silver were eliminated
from the effluent monitoring requirements and limits for cyanide were retained.
3. A special condition was added to the permit with requirements for developing a mercury
minimization plan.
4. A special condition was added to the permit with requirements for electronic DMR submittal.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
NPDES DIVISION CONTACT
January 27, 2016
March 15, 2016
If you have questions regarding any of the above information or on the attached permit, please contact
Teresa Rodriguez at 919-807-6387.
NAME: � DATE: / 2514,
Fact Sheet
NPDES NC0031879 Permit Renewal
Page 4

2015 Freshwater RPA - 95% Probability/95% Confidence
MAXIMUM DATA POINTS = 58
REQUIRED DATA ENTRY
Table 1. Project Information
CHECK IF HQW OR ORW WQS
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1Q10s (cfs)
Data Source(s)
['CHECK TO APPLY MODEL
City of Marion
Corpening Creek WWTP
NC0031879
001
2.500
Corpening Creek
2.30
3.60
6.00
12.00
Follow directions for data entiV.7h Sti a cases`a
comment menu list the available choices or a
dropdown menu will provide a list you may select
from. Error message occur if data entry does not
meet input criteria.
Table 2. Parameters of Concern
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Name
Chronic
Modifier Acute
PQL Units
Arsenic
C
50
FW
pg/L
Arsenic
C
10
HH/WS
ug/L
Beryllium
NC
6.5
FW
ug/L
Cadmium
NC
2
FW
15
ug/L
Chlorides (AL)
NC
230
FW
mg/L
Chlorinated Phenolic Compounds
NC
1
A
ug/L
Total Phenolic Compounds
NC
300
A
ug/L
Chromium
NC
50
FW
1.022
ug/L
Copper (AL)
NC
7
FW
7.3
ug/L
Cyanide
NC
5
FW
22
10
ug/L
Fluoride
NC
1,800
FW
ug/L
Lead
NC
25
FW
33.8
ug/L
Mercury
NC
12
FW
0.5
nglL
Molybdenum
NC
2,000
HH
ug/L
Nickel
NC
88
FW
261
ugiL
Selenium
NC
5
FW
56
ug/L
Silver (AL)
NC
0.06
FW
1.23
ug/L
Zinc (AL)
NC
50
FW
67
ug/L
31879 RPA.xlsm. input
1/20/2016

City of Marion
NC0031879
Qw (MGD) = 2.50
IQIOS(cfs)= 2.3
7Q 1OS (cfs) = 2.3
7QIOW(cfs)= 3.6
30Q2 (cfs) = 6.0
Avg. Stream Flow, QA (cfs) = 12.0
Receiving Stream: Corpening Creek
2015 Freshwater RPA - 95% Probability/95% Confidence
MAXIMUM DATA POINTS = 58
WWTP/WTP Class: Corpening Creek WWTP
IWC% @ IQ10S = 66.8
IWC% @ 7Q10S = 62.8
IWC%@ 7Q10W = 51.8
IWC% @ 30Q2 = 39.2
1WC% @ QA = 24.4
Stream Class: C
Outfall 001
Qw = 2.5 MGD
*
a
PARAMETER
TYPE
(1)
STANDARDS & CRITERIA (2)
PQL
w
t-
2
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WQS /
Chronic
Applied
Standard
/ FAV /
Acute
n
# Det. Max Pred Cw Allowable Cw
4
Cadmium
NC
2
FW(7Q10s)
15
uC/L
58
0
NO DETECTS
Acute: 22.5
_ _ _ _ _ _ _ _
Chronic: 3 2
Max MDL = 1
e►Azvet., (.t;
_ _ _ _ _
Copper (AL)
NC
7
FW(7Q1Os)
7.3
ug/L
58
16
160.0
Acute: 10.9
Chronic: 11.2
5 value(s) > Allowable Cw
RP, maintain monitoring
10
Cyanide
NC
5
FW(7Q10s)
22
10
ug/L
58
16
18.0
Acute: 33.0
_ _ _
— Chronic: _—.—.80_.-----------_-------_---------
4 value(s)> Allowable Cw
RP, maintain limit
17
Silver(AL)
NC
0.06
FW(7Q10s)
1.23
ti2 1.
511
0
NO DETECTS
Acute: 1.843
_ _ ron_ _ _ _ _ _
Chic: 0.096
Max MDL = 5
NO RP
_ _ _ _ _ _ _ _ _ _ _ _ _
18
Zinc (AL)
NC
50
FW(7QI0s)
67
ua/L
58
31
420.0
Acute: 100.4
___ _ ---___ _----------------
Chronic: 79.7
2 value(s)> Allowable Cw
---------- ----
RP, maintain monitoring
19
0
0
N/A
Acute:
--------------------------------------
Chronic:
Page 1 of 1
31879 RPA.xlsm, rpa
1/20/2016

REASONABLE POTENTIAL ANALYSIS
4
Cadmium
Date Data BDL=1/2DL Results
1 < 1 0.5 Std Dev.
2 < 1 0.5 Mean
3 < 1 0.5 C.V.
4 < 1 0.5 n
5 < 1 0.5
6 < 1 0.5
7 < 1 0.5
8 < 1 0.5
9 < 1 0.5
10 < 1 0.5
11 < 1 0.5
12 < 1 0.5
13 < 1 0.5
14 < 1 0.5
15 < 1 0.5
16 < 1 0.5
17 < 1 0.5
18 < 1 0.5
19 < 1 0.5
20 < 1 0.5
21 < 1 0.5
22 < 1 0.5
23 < 1 0.5
24 < 1 0.5
25 < 1 0.5
26 < 1 0.5
27 < 1 0.5
28 < 1 0.5
29 < 1 0.5
30 < 1 0.5
31 < 1 0.5
32 < 1 0.5
33 < 1 0.5
34 < 1 0.5
35 < 1 0.5
36 < 1 0.5
37 < 1 0.5
38 < 1 0.5
39 < 1 0.5
40 < 1 0.5
41 < 1 0.5
42 < 1 0.5
43 < 1 0.5
44 < 1 0.5
45 < 1 0.5
46 < 1 0.5
47 < 1 0.5
48 < 1 0.5
49 < 1 0.5
50 < 1 0.5
51 < 1 0.5
52 < 1 0.5
53 < 1 0.5
54 < 1 0.5
55 < 1 0.5
56 < 1 0.5
57 < 1 0.5
58 < 1 0.5
Use"PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58
9
Copper (AL)
0.0000
0.5000
0.0000
58
Mull Factor = 1.00
Max. Value 0.5 ug/L
Max. Pred Cw 0 DETECTS ug/L
Use 'TASTE SPECIAL
Values" then "COPY"
. Maxhnum data
points = 58
Date Data BDL=1/2DL Results
1 4/15/2010 < 10 5 Std Dev. 20.4886
2 5/6/2010 < 10 5 Mean 8.1552
3 5/20/2010 < 10 5 C.V. 2.5123
4 6/3/2010 < 10 5 n 58
5 6/15/2010 < 10 5
6 7/8/2010 < 10 5 Mult Factor = 1.00
7 7/22/2010 < 10 5 Max. Value 160.0 ug/L
8 8/5/2010 < 10 5 Max. Pred Cw 160.0 ug/L
9 8/19/2010 < 10 5
10 9/10/2010 < 10 5
11 9/21/2010 < 10 5
12 10/5/2010 < 10 5
13 10/19/2010 < 10 5
14 11/2/2010 < 10 5
15 11/15/2010 < 10 5
16 11/29/2010 < 10 5
17 12/6/2010 11 11
18 12/20/2010 < 10 5
19 1/4/2011 < 10 5
20 1118/2011 160 160
21 2/1/2011 18 18
22 2/15/2011 < 10 5
23 3/10/2011 < 10 5
24 3/22/2011 < 10 5
25 4/5/2011 < 10 5
26 4/19/2011 < 10 5
27 5/2/2011 < 10 5
28 5/17/2011 < 10 5
29 6/7/2011 < 10 5
30 6/20/2011 < 10 5
31 7/5/2011 < 10 5
32 7/19/2011 < 10 5
33 8/2/2011 < 10 5
34 8/16/2011 < 10 5
35 9/6/2011 < 10 5
36 9/20/2011 < 10 5
37 10/4/2011 13 13
38 10/18/2011 14 14
39 11/1/2011 < 10 5
40 11/15/2011 14 14
41 1/17/2012 < 10 5
42 4/3/2012 < 10 5
43 8114/2012 < 10 5
44 11/6/2012 < 10 5
45 2/4/2013 < 10 5
46 5/13/2013 < 10 5
47 6/4/2013 < 10 5
48 8/13/2013 < 10 5
49 11/4/2013 3 3
50 1/7/2014 2 2
51 5/5/2014 2 2
52 7/15/2014 4 4
53 10/7/2014 3 3
54 12/1/2014 3 3
55 2/3/2015 7 7
56 4/13/2015 3 3
57 6/1/2015 2 2
58 10/14/2015 4 4
10
Cyanide
Date Data BDL=1/2DL Results
1 12/6/2011 < 5 5 Std Dev.
2 1/9/2012 < 5 5 Mean
3 1/17/2012 < 5 5 C.V.
4 2/7/2012 < 5 5 n
5 3/6/2012 < 5 5
6 4/3/2012 < 5 5 Mult Factor =
7 5/1/2012 < 5 5 Max. Value
8 6/4/2012 < 5 5 Max. Pred Cw
9 7/10/2012 < 5 5
10 8/14/2012 < 5 5
11 9/5/2012 < 5 5
12 10/9/2012 < 5 5
13 11/6/2012 < 5 5
14 12/4/2012 < 5 5
15 1/8/2013 < 5 5
16 2/4/2013 < 5 5
17 3/5/2013 < 5 5
18 4/2/2013 < 5 5
19 5/13/2013 < 5 5
20 6/4/2013 < 5 5
21 7/23/2013 < 5 5
22 8/13/2013 7 5
23 9/10/2013 < 5 5
24 10/8/2013 < 5 5
25 11/4/2013 < 5 5
26 12/2/2013 < 5 5
27 1/7/2014 < 5 5
28 2/14/2014 < 5 5
29 3/10/2014 < 5 5
30 4/22/2014 e 5 5
31 5/6/2014 < 5 5
32 6/3/2014 6 5
33 7/15/2014 < 5 5
34 8/5/2014 < 5 5
35 9/11/2014 5 5
36 10/7/2014 6 5
37 11/13/2014 11 11
38 12/2/2014 6 5
39 1/5/2015 15 15
40 1/21/2015 < 5 5
41 1/27/2015 < 5 5
42 2/3/2015 < 5 5
43 2/16/2015 < 5 5
44 3/3/2015 11 11
45 3/16/2015 < 5 5
46 3/31/2015 6 5
47 4/13/2015 < 5 5
48 4/27/2015 7 5
49 5/4/2015 18 18
50 6/2/2015 6 5
51 6/4/2015 5 5
52 7/1/2015 9 5
53 7/2/2015 6 5
54 8/5/2015 < 5 5
55 8/6/2015 < 5 5
56 9/14/2015 < 5 5
57 9/15/2015 < 5 5
58 10/14/2015 9 5
Usc "PASTE SPECIAL -
Values' then "COPY"
. Maximum data
points = 58
2.3689
5.60
0.4228
58
1.00
18.0 ug/L
18.0 ug/L
17
Date Da
1
2
3
4 <
5 <
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33 <
34 <
35
36
37
38
39
40
41
42
43 <
44
45
46
47
48
49 <
50
51
52
53 <
54 <
55
56
57
58
-1-
31879 RPA.xism, data
1/20/2016

REASONABLE POTENTIAL ANALYSIS
Silver (AL)
eta BDL=1/2DL Results
5 2.5 Std Dev.
5 2.5 Mean
5 2.5 C.V.
5 2.5 n
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
Use "PASTE SPECIAL
Vatues" then "COPY"
. Maximum data
points = 58
18
Zinc (AL)
0.0000
2.5000
0.0000
58
Mull Factor = 1.00
Max. Value 2.500 ug/L
Max. Pred Cw 0 DETECTS ug/L
Date Data BDL=1/2DL Results
1 4/1/2010 < 30 15 Std Dev.
2 4/15/2010 < 30 15 Mean
3 5/6/2010 < 30 15 C.V.
4 5/20/2010 < 30 15 n
5 6/3/2010 < 30 15
6 6/15/2010 < 30 15 Mult Factor =
7 7/8/2010 < 30 15 Max. Value
8 7/22/2010 < 30 15 Max. Pred Cw
9 8/5/2010 < 30 15
10 8/19/2010 < 30 15
11 9/10/2010 51 51
12 9/21 /2010 44 44
13 10/5/2010 < 30 15
14 10/19/2010 42 42
15 11/2/2010 48 48
16 11/15/2010 57 57
17 12/6/2010 52 52
18 12/20/2010 43 43
19 1/4/2011 30 30
20 1/18/2011 420 420
21 2/1/2011 62 62
22 2/15/2011 < 30 15
23 3/10/2011 < 30 15
24 3/22/2011 30 30
25 4/5/2011 < 30 15
26 4/19/2011 < 30 15
27 5/2/2011 < 30 15
28 5/17/2011 < 30 15
29 6/7/2011 < 30 15
30 6/20/2011 < 30 15
31 7/5/2011 < 30 15
32 7/19/2011 < 30 15
33 8/2/2011 < 30 15
34 8/16/2011 32 32
35 9/6/2011 57 57
36 9/20/2011 52 52
37 10/4/2011 64 64
38 10/18/2011 73 73
39 11/1/2011 72 72
40 11/15/2011 120 120
41 1/17/2012 < 30 15
42 4/3/2012 71 71
43 8/14/2012 62 62
44 11/6/2012 65 65
45 2/4/2013 < 30 15
46 5/13/2013 < 30 15
47 6/4/2013 < 30 15
48 8/13/2013 < 30 15
49 11/4/2013 32 32
50 1/7/2014 44 44
51 5/5/2014 45 45
52 7/15/2014 53 53
53 10/7/2014 55 55
54 12/1/2014 53 53
55 2/3/2015 58 58
56 4/13/2015 40 40
57 6/1/2015 60 60
58 10/14/2015 38 38
Use "PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58
55.4803
41.6966
1.3242
58
1.00
420.0 ug/L
420.0 ug/L
-2-
31879 RPA.xlsm, data
1/20/2016

1/20/16 WQ5 = 12 ng/L
Facility Name: Marion
MERCURY WQBEL/TBEL EVALUATION V:2013-5
No Limit Required
MMP Required
Total Mercury 1631E PQL = 0.5 ng/L 7Q10s = 2.300 cfs
Date Modifier Data Entry Value Permitted Flow = 3.000
WQBEL =
17.94 ng/L
47 ng/L
11/6/2012
1/17/2012
4/3/2012
8/14/2012
11/4/2013
2/4/2013
5/13/2013
8/13/2013
12/9/2014
1/7/2014
5/5/2014
7/15/2014
3/17/2015
6/29/2015
10/19/2015
1
7
9.2
3.5
7.64
3.1
3
6.4
1.73
3.45
2.41
1.61
2.77
3.84
5.62
1
7
9.2
3.5
7.64
3.1
3
6.4
1.73
3.45
2.41
1.61
2.77
3.84
5.62
5.2 ng/L - Annual Average for 2012
5.0 ng/L - Annual Average for 2013
2.3 ng/L - Annual Average for 2014
4.1 ng/L - Annual Average for 2015

Pfi 7,oiL
ASHE�IIT
CITIZEN TE ES
VOICE OF THE' MOUNTAINS • CE'THZEN-TIMES.com
North carolina Envvilrcrimolnta uManagement
corium
isslon./HPDEs unit
1617 Mail service cantor
Notice ofIntentitoissueaH DESWastewater
Permit
The North Carolina Environmental M44nl_agcment
Comm(slon propeses to Issue a NPDty waste•
water discharge permit to uto personaas) listed
below. Written comments rega In the prPP•
posed pesmrdrt wr I be 4ccejted ntlt 7o dpys att-
er the publish slate of this n01tce. The Wr`eetorr
of the NC Dfvfbl of Water Resource(DWR)
Say na d a public is heenng shoutthere e bo e
significant denree 01 public Intee rest. picric
melt comments and/or InformationInterested
edrequestspersona
to
DWR its the above address Interested persons
may visit the DWR at 512 N. Salisbury SUM,
qa1 1 h. NC to rpetew ln(O m tion Ifle.
AUs notice
inrormetlon [foray NPDESO permitts afU
l s notice may ba oun on our weballe:
ChS r., ppflortal.nMyenr.orggrp siAvi /ps/np1
Clly 11 As(tevht4c+ccclapnge4m2 re ew7 of pemtil
NC0o95bt(( for the Mots River WTP, Henderson
County, elsrnargln9 treated titter• ackwas t to
the French Broad River, French Broad River,
Ba•
sin.
al Oaks. Inc.. requested rene min
torFtp• this sperm ttedsd schar a (s treat treated
do-
mes c wastuwater to Ea Fort Proem River o
the tench Broad River Basin.
Epvermllreen Foundation requested renewal of
NPDES permit NC0032361/Fhe Balsam Center
�W4IWYTTP/Haywood County. Facilitydischarges
Into Richland Creek /French BroadRiver Basin.
Ammonia nitrogen, fecal collfo nt and total re-
sIdual chlorine are water quality I Icedtl,
NC DOT requested renewal nNC002a805: I-40
Welcome Center/Rest Area WWTP/Haywpod
ayuntyy. Facllity d schorg s to the Ptoeen River
FrCr1Ch Broa7 River oasin. Currenuy, no pe-
rapsetere are water quality limited
Midway Medleal Center requested renewal of
1 PD�S Kermit N00022d5a/Hay�vood County.
ad ty dmeehargve to Saily Haynea Brancen.
renctt Broatl Raver Basin. Ammonia nitrogen.
awl co:(Iorm and total residual chlorine are
w terauallty IrnIed.
Rldga No n Incc,, requested a new permit
NC 9 or Ridge Nave Camp Conferenr(e
en Reeeettttreat Center WIIP in Transylvap a
County this permhled him/large Is treated qa•
mestl waytewaatter o Toxaway Creek, In t e
Savanpah River Basin.
Thhee0C1iity o Mee�non requested
o renewal yof mil
cD ireat�etl Comonitlipy, t PIPearnittedastewater dISC rirge p
Creek (Youngs Fork) in the Catawba River fla•
January28,2014 (3582)
AFFIDAVIT OF PUBLICATION
BUNCOMBE COUNTY
SS.
NORTH CAROLINA
Before the undersigned, a Notary Public of said County and
State, duly commissioned, qualified and authorized by law
to administer oaths, personally appeared Kelly Loveland,
who, being first duly sworn, deposes and says: that she is
the Staff Accountant of The Asheville Citizen -Times,
engaged in publication of a newspaper known as The
Asheville Citizen -Times, published, issued, and entered as
first class mail in the City of Asheville, in said County and
State; that she is authorized to make this affidavit and
sworn statement; that the notice or other legal
advertisement, a true copy of which is attached hereto, was
published in The Asheville Citizen -Times on the
following date: January 28th 2016. And that the said
newspaper in which said notice, paper, document or legal
advertisement was published was, at the time of each and
every publication, a newspaper meeting all of the
requirements and qualifications of Section 1-597 of the
General Statues of North Carolina and was a qualified
newspaper within the meaning of Section 1-597 of the
General Statutes of North Carolina.
Signe i4s 22ud day of February, 2016
(Signature of person makin affidavit)
Sworn to and subscribed before me the 22nd day of
Feb
Mary Pubit
My Co
ission expires the 5' day of October, 2018.
[phone] I [phone] FAX
14 O. HENRY AVE. I P.O. BOX 2090 I ASHEVILLE, NC 28802 I [phone]
e) GAMIETT
It�oYe,,,,,,,,,
NOTARY
,�UBL1C v:
�'0'4BE C,a..

Belnick, Tom
From: Belnick, Tom
Sent: Tuesday, June 09, 2015 2:10 PM
To: Rodriguez, Teresa (Teresa. [e-mail]); Grzyb, Julie
Cc: Behm, Pamela; Davidson, Landon; Williams, Melanie
Subject: NPDES/Lake Rhodhiss Permitting 2015
Subject: NPDES Permit Renewals/Lake Rhodhiss Dischargers
• NC0031879 (Marion WWTP)- assigned to Teresa Rodriguez
• NC0026573 (Morganton WWTP)- assigned to Teresa Rodriguez
• NC0023981 (Lenoir WWTP)- assigned to Julie Grzyb
• NC0041696 (Valdese WWTP)- assigned to Julie Grzyb
History/2010 Renewals. For the 4 WWTPs listed above that discharge to Lake Rhodhiss in the Catawba River Basin,
NPDES added additional effluent and instream nutrient monitoring requirements for the 2010 renewals to support
future TMDL efforts. At the time, the receiving waterbody was listed as impaired for pH (believed due to excessive algal
production) but not for chl-a.
Permitting Strategy/201S Renewals. Lake Rhodhiss is no longer listed as an impaired waterbody on the 2014 303(d) list
and there is no plan for TMDL development. Therefore, for 2015 renewals, please make the following changes to these
permits:
• Effluent Monitoring for Nutrients (TN/TP). Change monitoring frequency from Weekly to Monthly, which will be
consistent with 15A NCAC 2B.0508 requirements.
• Instream Monitoring for Nutrients (TN/TP). Delete this Monthly requirement (Note: I don't think the
requirement was established for Valdese, which discharges directly to the lake).
• Fact Sheet. You can state in the Fact Sheet that the basis for these changes is due to the removal of Lake
Rhodhiss from the 2014 303(d) impaired waters list.
This permitting decision was made in consultation with the Modeling Unit/Pam Behm. I'll place a copy of this email in
each permit file. Let me know if any questions.
Tom Belnick
Supervisor, NPDES Complex Permitting Unit
NCDWR/Water Quality Programs
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

Rodriguez, Teresa
From: Wiggs, Linda
Sent: Monday, February 23, 2015 4:43 PM
To: Rodriguez, Teresa
Subject: RE: permit renewals
Ok. Go ahead and put a note to yourself on the Corpening Crk (Marion) facility to review the NH3. These limits appear
too strict (Summer 1.4/4.2). Others in the area: Morganton's (Summer 16/35), Valdese (they don't even have any until
they get to 10.5 MGD), Old Fort (Summer 2"d tier 3.7/11.1) and Lenoir's (Summer 2/6). I know it probably has to do with
flows, receiving stream and the model. But the NH3 limits has me scratching my head, so I will ask for a review of that.
Gil Vansani did this facility last go round. Maybe the models needs looking at again, the receiving stream is not that
small. ??? I don't know but it would be nice if we could reevaluate the NH3 if that is possible. Maybe the permit needs
to be tiered to get a better NH3 number for the current flows? They are not close to 3 mill.
O
aa& 64;4
[e-mail]
Environmental Senior Specialist
North Carolina Dept. of Environment and Natural Resources
Asheville Regional Office
Division of Water Resources - Water Quality Regional Operations
2090 U.S. 70 Highway
Swannanoa, NC 28778
Tel: [phone]
Fax: [phone]
Link to Division of Water Resources Home Page
http://portal.ncdenr.org/web/wq
Notice: E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and
therefore may be disclosed to third parties.
From: Rodriguez, Teresa
Sent: Monday, February 23, 2015 3:56 PM
To: Wiggs, Linda
Subject: RE: permit renewals
I think I will start on these by the end of March.
From: Wiggs, Linda
Sent: Monday, February 23, 2015 3:44 PM
To: Rodriguez, Teresa
Subject: permit renewals
HI Teresa,
I am trying to stay on top of my regional comments for permit renewals. According to the list Charles sent out it looks
like you have Catawba River Pollution Control (Morganton) WWTP and Corpening Crk (Marion) WWTP. Are either of
these on your radar yet? If not that is fine, but if they are would you give me a heads up please. I definitely will need to
comment on both of these.
Thanks
1

[e-mail]
Environmental Senior Specialist
North Carolina Dept. of Environment and Natural Resources
Asheville Regional Office
Division of Water Resources - Water Quality Regional Operations
2090 U.S. 70 Highway
Swannanoa, NC 28778
Tel: [phone]
Fax: [phone]
Link to Division of Water Resources Home Page
http://portal.ncdenr.org/web/wq
Notice: E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and
therefore may be disclosed to third parties.
2

CITY OF MARION
P.O. Drawer 700
Marion, North Carolina 28752
Ms. Wren Thedford
OFFICE OF THE
WASTE TREATMENT
PLANT SUPERVISOR
Please see attached NPDES Permit Renewal request and application for NPDES Permit NC0031879,
Corpening Creek WWTP in McDowell County.
Of note in this permit renewal request the WWTP is permitted for 3.0 MGD and our average daily
discharge amount is 0.918 MGD, or a little less than one third of our permitted flow. Also v e average
92% removal of BOD and TSS. Based upon our flow ,BOD/TSS and average Ammonia removal the City
respectfully requests a tiered permit with first level tier of 2.5 MGD and second level tier of 3.0 MGD.
Upon reaching 80% of the first level tier of 2.5 MGD or 2.0MGD the City would move to the second level
3.0MGD and begin planning and preparations to address additional loadings and stay within regulation
15A NCAC 02T .0118. This would also allow Corpening Creek WWTP the capability to plan and allocate
resources to maximize operations, monitoring, and water quality protection. We are in hopes of having
our monitoring requirements set at 3 times per week due to our average flow being less than 1.0MGD.
And as the tier requirements are increased so would our testing back to the level as the permit requires
at 3.0 MGD. Should you have any questions or need additional information please contact me at 828-
652-8843 or [e-mail].
Thank You , Larry Carver WWTP Superintendant
RECEIVED/DENRIDWR
JUL 8 1 2014
Water Quality
Permitting Section

7-ACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
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.
Al. Facility Information.
Facility Name Corpeninq Creek WWTP
Mailing Address P 0 Box 700 , Marion NC 28752
Contact Person Robert J Boyette
Title City Manager
Telephone Number [phone]
Facility Address 3982 hwy 226 south, Marion NC 28752
(not P.O. Box)
A.2. Applicant Information. If the applicant is different from the above, provide the following:
Applicant Name Larry Carver
Mailing Address P 0 Box 700, Marion NC 28752
Contact Person Larry Carver
Title WWTP Superintendant
Telephone Number [phone]
Is the applicant the owner or operator (or both) of the treatment works?
❑ owner x❑ operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
❑ facility x❑ 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 PSD
UIC Other WQ0019960 Land Application Permit
RCRA Other WQ 0003698 Surface Disposal of Residual
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 Marion 7660 Sanitary Sewer City of Marion
Total population served 7660
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 2 of 22

'FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WW'TP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
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). Aso provide the
average daily flow rate and maximum daily flow rate for each of the last three years. Each year's data must be based on a 12-month time period
with the 12th month of "this yearn occurring no more than three months prior to this application submittal.
a. Design flow rate 3.0 mgd
Two Years Ago
Last Year This Year
b. Annual average daily flow rate 0.8971 0.8462 08945
c. Maximum daily flow rate 2.7250 4.8250 1.778
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 stone and sanitary sewer
A.8. Discharges and Other Disposal Methods.
a. Does the treatment works discharge effluent to waters of the U.S.? x❑ Yes 0 No
If yes, list how many of each of the following types of discharge points the treatment works uses:
i. Discharges of treated effluent 1
ii. Discharges of untreated or partially treated effluent
iii. Combined sewer overflow points
iv. Constructed emergency overflows (prior to the headworks)
v. Other
b. Does the treatment works discharge effluent to basins, ponds, or other surface impoundments
that do not have outlets for discharge to waters of the U.S.? 0 Yes
If yes, provide the following for each surface impoundment:
Location:
x❑ No
Annual average daily volume discharge to surface impoundment(s) mgd
Is discharge 0 continuous or 0 intermittent?
c. Does the treatment works land -apply treated wastewater? 0 Yes x❑ No
If yes, provide the following for each land application site:
Location:
Number of acres:
Annual average daily volume applied to site: mgd
Is land application
0 continuous or 0 intermittent?
d. Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works?
❑ Yes x❑ No
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 3 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
If yes, describe the mean(s) by which the wastewater from the treatment works is discharged or transported to the other treatment works
(e.g., tank truck, pipe).
If transport is by a party other than the applicant, provide:
Transporter Name
Mailing Address
Contact Person
Title
Telephone Number S 1
For each treatment works that receives this discharge, provide the following:
Name
Mailing Address
Contact Person
Title
Telephone Number ( )
If known, provide the NPDES permit number of the treatment works that receives this discharge
Provide the average daily flow rate from the treatment works into the receiving facility. mgd
e. Does the treatment works discharge or dispose of its wastewater in a manner not included
in A.B. through A.8.d above (e.g., underground percolation, well injection): 0 Yes x❑ No
If yes, provide the following for each disposal method:
Description of method (including location and size of site(s) if applicable):
Annual daily volume disposed by this method:
Is disposal through this method ❑ continuous or ❑ intermittent?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 4 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
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.B.ago to Part B. "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd."
A.9. Description of Outfall.
a. Outfall number 001
b. Location Marion 28752
(City or town, if applicable)
McDowell
(Zip Code)
NC
(County)
35 39 04
(State)
81 57 29
(Latitude)
c. Distance from shore (if applicable)
d. Depth below surface (if applicable)
N/A
N/A
(Longitude)
ft.
ft.
e. Average daily flow rate mgd
f. Does this outfall have either an intermittent or a periodic discharge? 0 Yes x❑ No (go to A.9.g.)
If yes, provide the following information:
Number f times per year discharge occurs:
Average duration of each discharge:
Average flow per discharge: mgd
Months in which discharge occurs:
g. Is outfall equipped with a diffuser? Cascade x❑ Yes 0 No
A.10. Description of Receiving Waters.
a. Name of receiving water Corpeninq Creek/ Youngs Fork
b. Name of watershed (if known) Catawba River Basin
United States Soil Conservation Service 14-digit watershed code (if known):
c. Name of State Management/River Basin (if known):
United States Geological Survey 8-digit hydrologic cataloging unit code (if known):
d. Critical low flow of receiving stream (if applicable)
acute N/A
cfs
chronic N/A cfs
e. Total hardness of receiving stream at critical low flow (if applicable): N/A mg/l of CaCO3
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 5 of 22

• FACILITY NAME AND PERMIT NUMBER:
Corpening Creek VVVVTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
x❑ Primary x❑ Secondary
❑ Advanced 0 Other. Describe:
b. Indicate the following removal rates (as applicable):
Design BOD5 removal or Design CBOD5 removal 85
Design SS removal 85 %
Design P removal °A
Design N removal
Other
c. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe:
Chlorine
If disinfection is by chlorination is dechlorination used for this outfall? x0 Yes 0 No
Does the treatment plant have post aeration? Cascade x0 Yes 0 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 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. 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
PARAMETER
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
Value
Units
Value
Units
Number of Samples
pH (Minimum)
6.1
s.u.
pH (Maximum)
6.8
s.u.
Flow Rate
MGD
0.913
MGD
Daily
Temperature (Winter)
12.3
Celsius
9,3
Celsius
5-week
Temperature (Summer)
24.5
Celsius
22.9
Celsius
5-week
' For pH please report a minimum and a maximum daily value
POLLUTANT
MAXIMUM DAILY
DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
ML/MDL
Conc.
Units
Conc.
Units
Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN
DEMAND (Report one)
BOD5
53.6
Mg/I
14.3
Mg/I
5-week
SM 5210 B
<2Mg/L
CBOD5
FECAL COLIFORM
2.217
geo
1.60
geo
5-week
SM9222D
<1 100/m1
TOTAL SUSPENDED SOLIDS (TSS)
44.6
Mg/I
20.8
Mg/I
5-week
SM2540D
<2.5mgll
END OF PART A.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 6 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
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 B.1 through B.6. All others go to Part C (Certification).
B.1. Inflow and Infiltration. Estimate the average number of gallons per day
30% during rain events gpd
that flow into the treatment works from inflow and/or infiltration.
any I&I all findings and repairs are reported to the DWQ office
Briefly explain any steps underway or planned to minimize inflow and infiltration.
We are currently doing smoke testing and repair to remove
We are also doing manhole inspections, starting 7/2014
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.
f. 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.
8.4. Operation/Maintenance Performed by Contractor(s).
Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works the responsibility of a
contractor? 0 Yes x❑ 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:
Mailing Address:
Telephone Number: ( 1
Responsibilities of Contractor.
B.5. Scheduled improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or
uncompleted plans for improvements that will affect the wastewater treatment, effluent quality, or design capacity of the treatment works. If the
treatment works has several different implementation schedules or is planning several improvements, submit separate responses to question B.5
for each. (If none, go to question B.6.)
a. List the outfall number (assigned in question A.9) for each outfall that is covered by this implementation schedule.
b. Indicate whether the planned improvements or implementation schedule are required by local, State, or Federal agencies.
❑ Yes ❑ No
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 7 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
c. If the answer to B.5.b is "Yes." briefly describe, including new maximum daily inflow rate (if applicable).
d. Provide dates imposed
applicable. For improvements
applicable. Indicate
Implementation Stage
- Begin Construction
- End Construction
- Begin Discharge
- Attain Operational
e. Have appropriate
Describe briefly:
by any compliance schedule
planned independently
dates as accurately as possible.
Level
permits/clearances concerning other
or any actual dates of completion for the implementation steps listed
of local, State, or Federal agencies, indicate planned or actual completion
Schedule Actual Completion
MM/DD/YYYY MM/DD/YYYY
below, as
dates, as
0 No
/ / / /
/ / / /
/ / / /
/ / / /
Federal/State requirements been obtained? ❑ Yes
B.6. EFFLUENT TESTING DATA (GREATER THAN 0.1 MGD
Applicants that discharge to waters of the US must
effluent testing required by the permitting authority
on combine sewer overflows in this section. All information
using 40 CFR Part 136 methods. In addition, this data
QA/QC requirements for standard methods for analytes
based on at least three pollutant scans and must be
Outfall Number: 001
ONLY).
provide effluent testing data for the following parameters. Provide
for each outfall through which effluent is discharged. Do not include
the indicated
information
conducted
other appropriate
data must be
reported must be based on data collected through analysis
must comply with QA/QC requirements of 40 CFR Part 136 and
not addressed by 40 CFR Part 136. At a minimum effluent testing
no more than four and on -half years old.
POLLUTANT
MAXIMUM DAILY
DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHODof
MUMDL
Conc.
Units
Conc.
Units
Number
Samples ples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA (as N)
9.2
Mg/I
<.05
Mg/I
5-week
SM 4500NH3 D
0.10
CHLORINE (TOTAL
RESIDUAL, TRC)
30.8
Ugll
<20
Ug/I
5-week
SM 4500 CLG-
2000
20UgIL
DISSOLVED OXYGEN
9.95
Mg/1
7.7
Mg/l
5-week
SM 45000G-2001
TOTAL KJELDAHL
NITROGEN (TKN)
8.4
Mg/1
.98
Mg/1
4
351.2
0.50
NITRATE PLUS NITRITE
NITROGEN
9.3
MgII
1.46
Mg/l
4
SM4500-NO3 F
1.0
OIL and GREASE
PHOSPHORUS (Total)
.93
Mg/1
.42
. Mg/1
4
SM4500 PF
0.050
TOTAL DISSOLVED SOLIDS
(TDS)
230
Mgll
210
Mg/I
4
SM 2540 C
10
OTHER
END OF PART B.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 8 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
BASIC APPLICATION INFORMATION
PART C. CERTIFICATION
All applicants must complete the Certification Section. Refer to instructions to determine who is an officer for the purposes of this
certification. All applicants must complete all applicable sections of Form 2A, as explained in the Application Overview. Indicate below which
parts of Form 2A you have completed and are submitting. By signing this certification statement, applicants confirm that they have reviewed
Form 2A and have completed all sections that apply to the facility for which this application is submitted.
Indicate which parts of Form 2A you have completed and are submitting:
x❑ Basic Application Information packet Supplemental Application Information packet:
x❑ Part D (Expanded Effluent Testing Data)
x❑ Part E (Toxicity Testing: Biomonitoring Data)
❑ Part F (Industrial User Discharges and RCRA/CERCLA 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 Larry C er
Signature
Telephone number [phone]
Date signed 7/29/2014
Upon request of the permitting authority, you must submit any other information necessary to assure wastewater treatment practices at the treatment
works or identify appropriate permitting requirements.
SEND COMPLETED FORMS TO:
NCDENR/ DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 9 of 22

• FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
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 mgd 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 infonnation 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/MDL
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
Samples
METALS (TOTAL RECOVERABLE), CYANIDE,
PHENOLS,
AND HARDNESS.
ANTIMONY
<0.01
MG/L
<0.01
MG/L
4
200.7
0.010
ARSENIC
<0.01
MG/L
<0.01
MG/L
4
200.7
0.010
BERYLLIUM
<.002
MG/L
<.002
MG/L
4
200.7
0.0020
CADMIUM
<.001
MG/L
<.001
MG/L
4
200.7
0.0010
CHROMIUM
<.005
MG/L
<.005
MG/L
4
200.7
0.0050
COPPER
<0.01
MG/L
<0.01
MG/L
4
200.7
0.010
LEAD
<0.01
MG/L
<0.01
MG/L
4
200.7
0.010
MERCURY
<0.20
UG/L
<0.20
UG/L
4
1631E
0.20ug/1
NICKEL
<0.01
MG/L
<0.01
MG/L
4
200.7
0.010
SELENIUM
<0.01
MG/L
<0.01
MG/L
4
200.7
0.010
SILVER
<.005
MG/L
<.005
MG/L
4
200.7
0.0050
THALLIUM
<0.01
MG/L
<0.01
MG/L
4
200.7
0.010
ZINC
<0.03
MG/L
<0.03
MG/L
4
200.7
0.030
CYANIDE
<.005
MG/L
<.005
MG/L
4
SM4500CNE
0.0050
TOTAL PHENOLIC
COMPOUNDS
<0.05
MG/L
<0.05
MG/L
4
420.1
0.050
HARDNESS (as CaCO3)
<1.0
Mg/L
<1.0
Mg/L
4
SM2340 C
1.0
Use this space (or a separate sheet) to provide information on other metals requested by the permit writer
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 10 of 22

FACIUTY NAME AND PERMIT NUMBER:
Corpening Creek VWVfP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
OutfaII number. (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
. ANALYTICAL
= METHOD
MLIMDL
Conc.
Units
Mass
Units -:
Conc.
Units ;'
. Mass
Units
Number =
of ; _ :;
Samples
VOLATILE ORGANIC COMPOUNDS
ACROLEIN
<100
UG/L
<100
UGIL
4
624
100
ACRYLONITRILE
<100
UG/L
<100
UG!L
4
624
100
BENZENE
<5.0
UGIL
<5.0
UG!L
4
624
5.0
BROMOFORM
<5.0
UGIL
<5.0
UGIL
4
624
5.0
CARBON
TETRACHLORIDE
<5.0
UG/L
<5.0
UGIL
4
624
5.0
CHLOROBENZENE
<5.0
UGIL
<5.0
UGIL
4
624
5.0
CHLORODIBROMO-
METHANE
<5.0
UG/L
<5.0
UGIL
4
624
5.0
CHLOROETHANE
<10
UG/L
<10
UGIL
4
624
10
2-CHLOROETHYLVINYL
ETHER
<10
UG/L
<10
UGIL
4
624
10
CHLOROFORM
<5.0
UGIL
<5.0
UGIL
4
624
5.0
DICHLOROBROMO-
METHANE
<5.0
UG/L
<5.0
UGIL
4
624
5.0
1,1-DICHLOROETHANE
<5.0
UG/L
<5.0
UGIL
4
624
5.0
1,2-DICHLOROETHANE
<5.0
UGIL
<5.0
UG!L
4
624
5.0
TRANS-1,2-DICHLORO-
ETHYLENE
<5.0
UGIL
<5.0
UGIL
4
624
5.0
1,1-DICHLORO-
ETHYLENE
<5.0
UG/L
<5.0
UGIL
4
624
5.0
1,2-DICHLOROPROPANE
<5.0
UGIL
<5.0
UGIL
4
624
5.0
1,3-DICHLORO-
PROPYLENE
<5.0
UGIL
<5.0
UGIL
4
624
5.0
ETHYLBENZENE
<5.0
UGIL
<5.0
UGII
4
624
5.0
METHYL BROMIDE
<5.0
UGIL
<5.0
UGIL
4
624
5.0
METHYL CHLORIDE
<5.0
UG/L
<5.0
UGIL
4
624
5.0
METHYLENE CHLORIDE
<5.0
UGIL
<5.0
UGIL
4
624
5.0
1,1,2,2-TETRA-
CHLOROETHANE
<5.0
UG/L
<5.0
UGIL
4
624
5.0
TETRACHLORO-
ETHYLENE
<5.0
UG/L
<5.0
UG/L
4
624
5.0
TOLUENE
<5.0
UGIL
<5.0
UG/L
4
624
5.0
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 11 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
Outfall number. (Complete
once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE -
_ANALYTICAL-,.:
METHOD
MLIMDL'
-`
Conc
Units -
Mass
Units ;
Conc.
Units
Mass
. Units ,
Number -
= ; of
Samples
1,11-
TRICHLOROETHANE
<5.0
UG/L
<5.0
UG/L
4
625
5.0
1,1,2-
TRICHLOROETHANE
<5.0
UG/L
<5.0
UG/L
4
625
5.0
TRICHLOROETHYLENE
<5.0
UG/L
<5.0
UG/L
4
625
5.0
VINYL CHLORIDE
<10
UG/L
<10
UG/L
4
625
10
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
UG/L
<10
UG/L
4
625
10
2-CHLOROPHENOL
<10
UG/L
<10
UG/L
4
625
10
2,4-DICHLOROPHENOL
<10
UG/L
<10
UG/L
4
625
10
2,4-DIMETHYLPHENOL
<10
UG/L
<10
UG/L
4
625
10
4,6-DINITRO-O-CRESOL
<10
UG/L
<10
UG/L
4
625
10
2,4-DINITROPHENOL
<10
UG/L
<10
UG/L
4
625
10
2-NITROPHENOL
<10
UG/L
<10
UG/L
4
625
10
4-NITROPHENOL
<50
UG/L
<50
UG/L
4
625
50
PENTACHLOROPHENOL
<10
UG/L
<10
UG/L
4
625
10
PHENOL
<10
UG/L
<10
UG/L
4
625
10
2,4,6
TRICHLOROPHENOL
<10
UG/L
<10
UG/L
4
625
10
Use this space (or a separate sheet) to provide information on other acid -extractable compounds requested by the permit writer
BASE -NEUTRAL COMPOUNDS
ACENAPHTHENE
<10
UG/L
<10
UG/L
4
625
10
ACENAPHTHYLENE
<10
UG/L
<10
UG/L
4
625
10
ANTHRACENE
<10
UG/L
<10
UG/L
4
625
10
BENZIDINE
<100
UG/L
<100
UG/L
4
625
100
BENZO(A)ANTHRACENE
<10
UG/L
<10
UG/L
4
625
10
BENZO(A)PYRENE
<10
UG/L
<10
UG/L
4
625
10
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 12 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
Outfall number. (Complete once for each outfall discharging effluent to waters of the United States.)
-MAXIMUM DAILY DISCHARGE
AVERAGE -DAILY
DISCHARGE
ANALYTICAL
-METHOD _
- .
lam
POLLUTANT
Conc..
• Units
Mass
Units ,'
`
Conc.
=
..Units
. Mass.
,
Units -
` Number :.
•;of
Samples .
3,4 BENZO-
FLUORANTHENE
<10
UG/L
<10
UG/L
4
625
10
BENZO(GH9PERYLENE
<10
UG/L
<10
UG/L
4
625
10
BENZO(K)
FLUORANTHENE
<10
UG/L
<10
UG/L
4
625
10
BIS (2-CHLOROETHOXY)
METHANE
<10
UG/L
<10
UG/I
4
625
10
BIS (2-CHLOROETHYL)-
ETHER
<10
UG/L
<10
UG/L
4
625
10
BIS (2-CHLOROISO-
PROPYL) ETHER
<10
UG/L
<10
UG/L
4
625
10
BIS (2-ETHYLHEXYL)
PHTHALATE
<10
UG/L
<10
UG/L
4
625
10
4-BROMOPHENYL
PHENYL ETHER
<10
UG/L
<10
UG/L
4
625
10
BUTYL BENZYL
PHTHALATE
<10
UG/L
<10
UG/L
4
625
10
2-CHLORO-
NAPHTHALENE
<10
UG/L
<10
UG/L
4
625
10
4-CHLORPHENYL
PHENYL ETHER
<10
UG/L
<10
UG/L
4
625
10
CHRYSENE
<10
UG/L
<10
UG/L
4
625
10
DI-N-BUTYL PHTHALATE
<10
UG/L
<10
UG/L
4
625
10
DI-N-OCTYL PHTHALATE
<10
UG/L
<10
UGIL
4
625
10
DIBENZO(A,H)
ANTHRACENE
<10
UG/L
<10
UG/L
4
625
10
1,2-DICHLOROBENZENE
<5.0
UG/L
<5.0
UG/L
4
625
5.0
1,3-DICHLOROBENZENE
<5.0
UG/L
<5.0
UG/L
4
625
5.0
1,4-DICHLOROBENZENE
<5.0
UG/L
<5.0
UG/L
4
625
5.0
3,3-DICHLORO-
BENZIDINE
<5.0
UG/L
<5.0
UG/L
4
625
5.0
DIETHYL PHTHALATE
<10
UG/L
<10
UG/L
4
625
10
DIMETHYL PHTHALATE
<10
UG/L
<10
UG/L
4
625
10
2,4-DINITROTOLUENE
<10
UG/L
<10
UGIL
4
625
10
2,6-DINITROTOLUENE
<10
UG/L
<10
UGIL
4
625
10
1,2-DIPHENYL- •
HYDRAZINE
<10
UG/L
<10
UG/L
4
625
10
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 13 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WVvTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
Outfall number: (Complete once for each outfail discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
MUMDL
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
Samples
FLUORANTHENE
<10
UG/L
<10
UG/L
4
625
10
FLUORENE
<10
UG/L
<10
UG/L
4
625
10
HEXACHLOROBENZENE
<10
UG/L
<10
UG/L
4
625
10
HEXACHLORO-
BUTADIENE
<10
UGIL
<10
UGIL
4
625
10
HEXACHLOROCYCLO-
PENTADIENE
<10
UG/L
<10
UGIL
4
625
10
HEXACHLOROETHANE
<10
UG/L
<10
UGIL
4
625
10
INDENO(1,2,3-CD)
PYRENE
<10
UG1L
<10
UG/L
4
625
10
ISOPHORONE
<10
UG/L
<10
UG/L
4
625
10
NAPHTHALENE
<10
UG/L
<10
UG!L
4
625
10
NITROBENZENE
<10
UG/L
<10
UG/L
4
625
10
N-NITROSODI-N-
PROPYLAMINE
<10
UGIL
<10
UGIL
4
625
10
N-NITROSODI-
METHYLAMINE
<10
UG/L
<10
UGIL
4
625
10
N-NITROSODI-
PHENYLAMINE
<10
UG/L
<10
UG/L
4
625
10
PHENANTHRENE
<10
UG/L
<10
UGIL
4
625
10
PYRENE
<10
UGIL
<10
UG!L
4
625
10
1,2,4-
TRICHLOROBENZENE
<10
UG/L
4
625
10
Use this space (or a separate sheet) to
provide information
on
other base -neutral compounds
requested
by the permit
writer
Use this space (or a separate sheet) to provide information on other pollutants (e.g , pesticides) requested by the permit writer
END OF PART D.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 14 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
SUPPLEMENTAL APPLICATION INFORMATION
PART E. TOXICITY TESTING DATA
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must include quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested in question E.4 for previously submitted information. If EPA methods were not used, report the reasons for using altemate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent
x❑ chronic 18 all tests
E.2. Individual Test Data. Complete the
column per test (where each species
toxicity tests conducted in the past four and one-half years.
passed reported to the state ❑ acute
following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
constitutes a test). Copy this page
Test number:
if
more than three tests are being reported.
Test number:
Test number.
a. Test information. SEE ATTACHED SHEETS FOR ANALYSIS RESULTS FOR
Test Species & test method number
Age at initiation of test
Outfall number
Dates sample collected
Date test started
Duration
b. Give toxicity test methods followed.
Manual title
Edition number and year of publication
Page number(s)
c. Give the sample collection me hod(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 15 of 22

•
•
•
•
Environmental Testing Solutions, Inc.
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Date: June 23, 2014
Effluent Aquatic Toxicity Report Form - Chronic Fathead Minnow Multi -Concentration Test
Facility: Marion
Corpening Creek WWTP
NPDES #: NC- 0031879 Pipe 8: 001 County: McDowell
Laboratory Performing Test: Environmental Testis Solt) ' ns, Inc.
Signature of Operator in Responsible Char:e: ,,,-,e'
Signature of Laboratory Supervisor: •N�eC_
Comments:
Project: 9840
Samples: 140602.01, 140604.01, 140606.01
Mail Original To: North Carolina Department of Environment and Natural Resources
DWQ/ Environmental Sciences Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Control
Organisms
% Effluent
1
Replicate number
2 3
4
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/Iervae)
0.486
0.585
0.605
0.611
16.75%
% Effluent
% Effluent
67%
% Effluent
% Effluent
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.668
0.726
0.703
0.739
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.567
0.641
0.635
0.620
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.629
0.590
0.654
0.563
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.646
0.591
0.638
0.580
100%
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.694
0.646
0.615
0.709
Water Quality Data
Control
pH (SU):
DO (mg/L):
Temp. (°C):
High Concen
pH (SU):
DO (mg/L):
Temp. (°C):
Start date:
End date:
Start time:
End time:
06-03-14
06-10-14
1120
1042
Survival (%)
Average wt (mg)
Average wt /
surviving (mg) Hatch date:
Hatch time:
100.0
0.572
0.572
Test Organisms
Outside supplier
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
100.0
0.709
100.0
0.616
100.0
0.609
I00.1)
0.614
100.0
0.666
Aquatox, Inc.
06-02-14
1600-1700
Day 0
Initial Final
Day 1
Initial I Final
Day 2
initial I Final
Day 3
Initial Final
Day 4
Initial Final
Day 5
Initial Final
Day 6
Initial I Final
7.85
7.86
7.99
7.51
7.66
7.44
7.61
7.42
7.71
7.35
7.79
7.98
7.55
7.41
7.8
8.0
8.2
7.6
7.8
6.8
7.6
7.7
7.9
6.8
7.6
7.1
7.6
7.1
24.8
24.6
24.7
24.5
24.7
24.5
24.8
24.8
24.8
24.7
24.7
24.5
24.8
24.6
8.06
8.08
8.23
7.74
8.00
7.72
8.02
7.67
8.07
7.61
8.06
7.77
7.94
7.64
8.1
7.9
8.1
7.6
7.8
6.9
7.8
7.3
8.0
6.6
7.6
7.2
7.6
7.0
25.0
24.6
24.6
24.4
25.0
24.6
25.0
24.6
24.9
24.6
24.8
24.5
25.0
24.3
Sample Information
Collection start date:
Grab:
Composite duration:
Alkalinity (mg/L CaCO3):
Hardness (mg/L CaCO3):
Conductivity (µmhos/cm):
Total residual chlorine (mg/L):
Sample Temp. at Receipt CC):
Overall Analysis:
Sample 1
06-01-14
23.75-h
60
46
395
<0.10
3.5
Sample 2
06-03-14
24.25-h
84
50
396
<0.10
2.7
Sample 3
06-05-14
24-h
99
50
430
<0.10
4.0
Control
32-33
40-44
147-158
Analyses
Normal:
Hom. Var.
NOEC:
LOEC:
CbV:
Method:
Survival
Growth
Yes
Yes
Yes
Yes
100%
100%
>100%
>100%
>100%
>100%
Visual lnsp.
Dunnett's
Survival
Growth
%Effluent
Critical
Calculated
Critical
Calculated
16.75%
2.410
-4.731
33.5%
2.410
-1.517
67%
2.410
-1.284
83.5%
2.410
-1.448
100%
2.410
-3.248
Result: PASS LOEC: >100% NOEC: 100% ChV: >100%
DWQform AT-5 (8/03)

•
•
•
3
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Date: June 27, 2014
Effluent Aquatic Toxicity Report Form - Chronic Fathead Minnow Multi -Concentration Test
Environmental Testing Solutions, Inc.
Facility: Marion
Corpening Creek WWTP
Laboratory Performing Test: Environmental Testin; , utions, Inc.
Signature of Operator in Responsible Charge:
Signature of Laboratory Supervisor:
NPDES #: NC- 0031879 Pipe #: 001 County: McDowell
Comments:
Project: 9893
Samples: 140609.01, 140611.11, 140613.01
Mail Original To: North Carolina Department of Environment and Natural Resources
DWQ/ Environmental Sciences Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Control
Organisms
% Effluent
16.75%
% Effluent
1
Replicate number
2 3
4
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.731
0.787
0.760
0.820
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.779
0.768
0.660
0.758
33.5%
% Effluent
67%
% Effluent
Surviving number of larvae
10
10
10
9
Original number of larvae
10
10 .
10
10
Weight/original (mg/larvae)
0.821
0.851
0.759
0.737
Surviving number of larvae
10
10
9
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.813
0.730
0.856
0.848
IMO
% Effluent
100%
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.773
0.763
0.755
0.703
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.778
0.817
0.783
0.742
Water Quality Data
Control
pH (SU):
DO (mg/L):
Temp. (°C):
High Concen
pH (SU):
DO (mg/L):
Temp. (°C):
Start date:
End date:
Start time:
End time:
06-10-14
06-17-14
1335
1235
Survival (%)
Average wt (mg)
Average wt /
surviving (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average cut (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
100.0
0.775
0.775
100.0
0.741
97.5
0.792
97.5
0.812
100.0
0.749
100.0
0.780
Test Organisms
Outside supplier.
Aquatox, Inc.
Hatch date:
Hatch time:
06-09-14
1600-1700
Day 0
Initial I Final
Day 1
Initial I Final
Day 2
Initial Final
Day 3
Initial I Final
Day 4
Initial I Final
Day 5
Initial Final
Day 6
Initial Final
7.58
7.44
7.70
7.39
7.73
7.31
7.66
7.42
7.73
7.39
7.71
7.50
7.47
7.41
7.7
7.3
7.9
6.8
7.7
6.4
7.7
6.7
7.9
6.3
8.0
7.3
7.6
6.5
24.9
24.7
24.8
24.5
24.7
24.3
24.8
24.5
24.6
24.7
24.8
24.6
24.8
24.8
7.78
7.83
7.78
7.69
7.55
7.60
8.01
7.66
8.03
7.59
8.07
7.78
7.73
7.52
7.7
7.2
7.6
6.4
7.8
6.1
7.6
6.5
7.8
6.0
7.8
7.2
7.8
'6.4
25.2
24.6
24.9
24.4
25.0
24.6
25.0
24.6
24.9
24.6
25.0
24.5
25.1
24.7
Sample Information
Collection start date:
Grab:
Composite duration:
Alkalinity (mg/L CaCO3):
Hardness (mg/L CaCO)):
Conductivity (pmhos/cm):
Total residual chlorine (mg/L):
Sample Temp. at Receipt (°C):
Overall Analysis:
Sample 1
06-08-14
22.75-h
98
48
428
<0.10
4.0
Sample 2
06-10-14
23.75-h
100
52
413
<0.10
2.6
Sample 3
06-12-14
23.75-h
100
48
412
< 0.10
2.1
Analyses
Normal:
Hom. Var.
NOEC:
LOEC:
ChV:
Method:
Survival
Growth
Yes
Yes
Yes
Yes
100%
100%
>100%
>100%
>I00%
>100%
Visual Insp.
Dunnetts
Survival
Growth
%Effluent
Critical
Calculated
Critical
Calculated
16.75%
2.410
1.030
33.5%
2.410
-0.542
67%
2.410
-1.154
83.5%
2.410
0.806
100%
2.410
-0.170
Result: PASS LOEC: >100% NOEC: 100n/o ChV: >100%
DWQ form AT-5 (8/03)

•
•
•
4
Environmental Testing Solutions. Inc
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
• Date: July 03, 2014
Effluent Aquatic Toxicity Report Form - Chronic Fathead Minnow Multi -Concentration Test
Facility: Marion
Corpening Creek WW1'P
Laboratory Performing Test Environmental Testing Solutions, Inc.
Signature of Operator in Responsible Ch
Signature of Laboratory Supervisor.
NPDES #: NC- 0031879 Pipe #: 001 County: McDowell
Comments:
Project: 9910
Samples 140618.01, 140620.01, 140623.01
Mail Original To: North Carolina Department of Environment and Natural Resources
DWQ/ Environmental Sciences Branch
1621 Marl Service Centex
Raleigh, NC 27699-1621
Control
Organisms
% Effluent
16.75%1
% Effluent
133.5%
% Effluent
% Effluent
83.5%1
% Effluent
100%
Replicate number
2" 3
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weightloriginal (mg/larvae)
0.614
0.721
0.713
0.698
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Wdghtlaiginal (mg/larvae)
0.779
0.674
0.764
0.744
Surviving number of larvae
10
.10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.651
0.650
0.737
0.682
Surviving number of larvae
10
10
10
10
Original number of lavae
10
10
10
10
WeigWoriginel (mg/larvae)
0.672
0.609
0.668
0.661
Surviving number of larvae
10
10
10
10
Original number of larvae
. 10
10
10
I0
Weight/original (mg/larvae)
0.795
0.633
0.667
0.720
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.670
0.632
0.688
0.609
Water Quality Data
Control
pH (SU):
DO (mg/L):
Temp. (°C):
High Concen
pii (SU).
DO (mg/L):
Temp. (°C):
Day 0
Initial 1 Final
Day 1
Initial I Final
Day 2
Initial 1 final
Start date:
End date•.
Start time:
End time:
06-19-14
06-26-14
1045
0940
Survival (%)
Average wt (mg)
Average wt /
surviving (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average cut (mg)
3
Initial I Final
100.0
0.687
0.687
100.0
0.740
100.0
0.680
100.0
0.653
100.0
0.704
100.0
0.650
Day 4
Initial Final
Test Organisms
Outside supplier.
Aquatox. Inc.
Hatch date:
Haub time:
Day 5
Initial Final
06-18-14
1600-1700
Day 6
Initial I Final
7.64
7.44
7.64
7.49
7.73
7.49
7.78
7.60
7.74
7.46
7.61
7.46
7.68
7.38
8.0
7.3
7.7
7.3
8.1
7.2
8.0
7.4
7.9
7.0
8.0
7.1
7.9
7.2
24.8
24.6
24.7
24.6
24.7
24.5
24.8
24.7
24.8
243
24.9
24.7
24.8
24.6
7.83
7.81
7.97
7.70
8.04
7.73
8.13
7.88
8.07
7.68
7.93
7.55
8.00
7.20
7.9
73
7.9
7.3
8.1
6.9
8.1
7.5
8.0
7.2
8.1
7.4
7.9
7.2
25.0
24.6
24.6
24.7
24.9
24.6
25.0
24.5
24.9
24.2
24.7
24.6
2A.7
24.7
Sample Information
Collection start date:
Grab:
Composite duration:
Alkalinity (mg/L CaCO3):
Hardness (mg/L CaCO3):
Conductivity (pmhos/an):
Total residual chlorine (mg/L):
Sample Temp. at Receipt ('C):
Overall Analysis:
Sample 1
06-17-14
24-h
70
44
391
<0.10
3.0
Sample 2
06-19-14
23.75-h
95
44
402
<0.10
5.4
Sample 3
06-22-14
23-h
93
50
410
< 0.10
3.9
34
40
15I-162
Analyses
Normal:
Hom. Var.
NOEC:
LOEC:
C1iV:
Method:
Survival
Growth
Yes
Ycs
Yes
Yes
100%
100%
>100%
>100%
>100%
>100%
Visuallnsp.
Dunnetrs
Survival
Growth
%Effluent
Critical
Calculated
Critical
Calculated
16.75%
.
2.410
1.610
33.5%
2.410
0.195
67%
.
.
2.410
1.018
83.5%
2.410
-0.517
100%
.
2.410
1.101
Result: PASS LOEC: >100% NOEC: 100% ChV: >100%
DWQ form AT-5 (8/03)

t
e
•
al
Environmental Testing Solutions, Inc.
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Date: July 23, 2014
Effluent Aquatic Toxicity Report Form - Chronic Fathead Minnow Multi -Concentration Test
Facility: Marion
Corpening Creek WWTP
Laboratory Performing Test: Environmental T
Signature of Operator in Responsible Ch
Signature of Laboratory Supervisor:
NPDES #: NC- 0031879 Pipe #: 001 County: McDowell
oluti r j s, Inc.
Comments:
Project: 9913
Samples: 140707.01, 140709.01, 140711,01
Mail Original To: North Carolina Department of Environment and Natural Resources
DWQ/ Environmental Sciences Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
. Control
Organisms
% Effluent
16.75%1
% Effluent
33.5%
% Effluent
67%
% Effluent
83.5%
% Effluent
100%
Replicate number
1 2 3
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.686
0.717
0.711
0.633
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.743
0.572
0.817
0.638
Surviving number of larvae
10
10
10
10
Original number of larvae
10
I0
10
10
Weight/original (mg/larvae)
0.677
0.806
0.712
0.890
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.749
0.709
0.735
0.772
Surviving number of larvae
10
10
10
10
Original comber of larvae
10
10
10
10
Weight/original (mg/larvae)
0.815
0.782
0.818
0.721
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/luvae)
0.760
0.792
0.660
0.725
Water Quality Data
Control
pH (SU):
DO (mg/L):
Tamp. (°C):
High Concen
pH (SU):
DO (mg/L):
Tamp. (°C):
Stan date:
Fad data
Start time:
End time:
07-08-14
07-15-14
1130
1033
Survival (%)
Average wt (mg)
Average wt /
surviving(mg)
Survival (%)
Average vet (mg)
Survival (%)
Average vet (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
100.0
0.687
0.687
100.0
0.692
100.0
0.771
100.0
0.741
100.0
0.784
100.0
0.734
Test Organisms
Outside supplier.
1 Aquatox, Inc.
Hatch date:
Hatch time:
07-07-14
1600-170D
Day0
Initial I Final
Day 1
Initial Final
Day 2
Initial Final
Day 3
Initial ( Final
D 4
Initial I Frna1
DaT 5
Initial I Final
Da 6
Initial I Final
7.66
7.51
7.75
7.45
7.64
739
7.65
7.33
7.77
7.49
7.72
7.56
7.57
7.46
8.0
8.0
8.1
7.8
8.0
7.5
7.9
7.4
7.9
7.4
8.1
7.2
7.7
7.4
24.9
24.7
24.9
24.8
24.9
24.6
24.7
24.4
24.8
24.7
249
243
24.7
24.3
7.67
7.54
7.73
7.50
7.82
7.53
7.81
7.45
7.85
7.60
7.81
7,75
7.82
7.73
8.2
82
8.1
7.8
8.1
7.6
8.1
7.3
8.1
7.2
8.0
7.4
8.1
7.5
25.3
24.8
25.0
24.7
25.0
242
25.0
243
25.0
24.7
24.9
24.5
24.8
24.4
Sample Information
Collection start date:
Grab:
Composite duration:
Alkalinity (mg/L CaCOj):
Hardness (mg/L CaC0r):
Conductivity (pmhos/cm):
Total residual chlorine (mg/L):
Sample Temp. at Receipt (°C):
Overall Analysis:
Sample 1
07-06-14
22.25-h
48
52
355
< 0.10
5.0
Sample 2
07-08-14
23.75-h
58
46
360
<0.10
3.1
Sample 3
07-10-14
23-h
60
48
357
<0.10
3.6
35, 35
42, 42
152-162
Analyses
Normal:
Hom. Var.
NOEC:
LOEC:
CbV:
Medved:
Survival
Growth
Yes
Yes
Yes
Yes
100%
100%
>100%
>100%
>100%
>100%
Vinod Insp.
Dunnett's
Survival
Growth
%Etnuent
Critical
Calculated
Critical
Calculated
16.75%
.
2.410
0.118
33.5%
.
.
2.410
-1,735
67%
2.410
-1.119
833%
2.410
-1.997
IOD°k
2.410
-0.975
Result: PASS LOEC: >100% NOEC: 100% ChV: >100%
DWQ fonn AT-5 (8/03)

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
Test number: Test number: Test number.
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
Row -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
Receiving water
i. Type of dilution water. If salt water, specify "natural" or type of artificial sea salts or brine used.
Fresh water
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH
Salinity
Temperature
Ammonia
Dissolved oxygen
I. Test Results.
Acute:
Percent survival in 100%
effluent
LCso
95% C.I.
%
%
%
Control percent survival
%
%
Other (describe)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 16 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek VWVTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
Chronic:
NOEC
%
%
%
IC25
%
%
%
Control percent survival
%
%
yo
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 (MM/DD/YYYY)?
/ /
/ /
/ /
Other (describe)
E.3. Toxicity Reduction Evaluation.
❑ Yes x 0 No
Is the treatment works involved in a Tox'city Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have
cause of toxicity, within the past four and one-half years, provide the dates
of the results.
Date submitted: / / (MM/DD/YYYY)
submitted biomonitoring test information, or information regarding the
the information was submitted to the permitting authority and a summary
Summary of results: (see instructions)
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 17 of 22

FACILITY NAME AND PERMIT NUMBER:
Corpening Creek WWTP, NC0031879
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
SUPPLEMENTAL APPLICATION INFORMATION
PART F.INDUSTRIAL USER DISCHARGES AND RCRA/CERCLA WASTES
All treatment works receiving discharges from significant industrial users or which receive RCRA,CERCLA,
complete part F.
GENERAL INFORMATION:
F.1. Pretreatment program. Does the treatment works have, or is subject ot, an approved pretreatment program?
❑ Yes x❑ No
F.2. Number of Significant Industrial Users (SlUs) and Categorical Industrial Users (Dills). Provide the number
industrial users that discharge to the treatment works.
a. Number of non -categorical SIUs.
or other remedial wastes must
of each of the following types of
questions F.3 through F.8 and
b. Number of CIUs.
SIGNIFICANT INDUSTRIAL USER INFORMATION:
to the treatment works, copy
Supply the following information for each SIU. If more than one SIU discharges
provide the information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name:
Mailing Address:
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
F.5. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s):
Raw material(s):
F.6. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into
day (gpd) and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
the collection system in gallons per
discharged into the collection system
b. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits ❑ Yes ❑ No
b. Categorical pretreatment standards ❑ Yes 0 No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 18 of 22

CITY OF MARION
P.O. Drawer 700
Marion, North Carolina 28752
Sludge Management Program
OFFICE OF THE
WASTE TREATMENT
PLANT SUPERVISOR
The sludge produced at Corpening Creek WWTP is land applied in a liquid form under a state issued land
application permit. WQ0019960 all analysis done under this permit is sent to the state as a record of our
solids application.
All sludge application is done by Southern Soil Builders from Roaring River NC. Dennis Keys is our
contact, his address is as follows.
Southern» Soil Builders
958 Hoots Road
Roaring River NC 28669
1800-411-5527

TREATMENT FLOW DIAGRAM
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