NC0081370_Renewal (Application)_20190925

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ROY COOPER g v
Governor
MICHAEL S.REGAN ..a u,y,� . ,
Secretary
,ioa
LINDA CULPEPPER NORTH CAROLINA
Director Environmental Quality
October 04, 2019
Jason Brown, City Manager
City of Claremont
PO Box 446
Claremont, NC 28610-0446
Subject: Permit Renewal
Application No. NC0081370
McLin Creek WWTP
Catawba County
1 Dear Applicant:
The Water Quality Permitting Section acknowledges the September 25, 2019 receipt of your permit renewal application
and supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW
permitting branch. Per G.S. 150B-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq.nc.gov/permits-regulations/permit guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincerely,
inU
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
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of Er ti ronmenta Qua rtY I Dyson of Water Resources
Acores v a Regona'0ff,ce 1610 Ea5 Center Avenue,Su to 301 I Maoresv.iie,North Caroi.na
28115
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s
41111
CITY OF CLAREMONT
Shawn R. Brown Jason Brown
Mayor City Manager
NCDENR/ DWQ/ Point Source Branch
1617 Mail Service Center RECEIVED
Raleigh, North Carolina 27699-1617
SEP 2 5 2019
September 23, 2019 NCDEQIDWRINPDES
RE: NPDES Permit Application (NPDES#NC0081370)
City of Claremont McLin Creek WWTP
Claremont, North Carolina
Enclosed please find for your review and processing the application package
to renew the City of Claremont's McLin Creek Wastewater Treatment Plant
NPDES permit. The application package includes the following:
• An EPA Form 2A
• An authority delegation Letter
• A letter describing the sludge management practices for the
McLin Creek WWTP.
If any additional information is needed, please feel free to contact me at (828)
466-7255.
Warmest Regards,
Jaso A . Brown
Ma •ager
Cc: Mr. Shawn Pennell, City of Hickory
Mr. Tom Winkler, City of Claremont
828-466-7255 City Hall . 828-466-7185 Fax
3288 East Main Street • Post Office Box 446 • Claremont, NC 28610

s
4111
CITY OF CLAREMONT
Shawn R. Brown Jason Brown
Mayor City Manager
NCDENR/ DWQ/ Point Source Branch RECEIVED
1617 Mail Service Center
Raleigh, North Carolina 27699-1617 SEP 2 5 2019
September 23, 2019 NCDEQ/DWR/NPDES
RE: NPDES Permit Application (NPDES#NC0081370)
City of Claremont McLin Creek WWTP
Claremont, North Carolina
Please accept this as a formal delegation of authority to the City of Hickory, as
an Authorized Representative for the preparation of the City of Claremont's McLin
Creek Wastewater Treatment Plant NPDES permit renewal application package.
The Authorized Representative has assisted in the preparation of EPA from 2A
and a letter describing the sludge management practices for the McLin Creek
WWTP.
If any additional information is needed, please feel free to contact me at (828)
466-7255.
Warmest Regards,
4
Jason . Brown
ager
Cc: Mr. Shawn Pennell, City of Hickory
Mr. Tom Winkler, City of Claremont
828-466-7255 City Hall • 828-466-7185 Fax
3288 East Main Street • Post Office Box 446 • Claremont, NC 28610

s
41111
CITY OF CLAREMONT
Shawn R. Brown Jason Brown
Mayor City Manager
NCDENR/ DWQ/ Point Source Branch
1617 Mail Service Center RECEIVED
Raleigh, North Carolina 27699-1617
SEP 2 5 2019
September 23, 2019
NCDEQ/DWR/NPDES
RE: NPDES Permit Application (NPDES#NC0081370)
City of Claremont McLin Creek WWTP
Claremont, North Carolina
The City of Claremont's McLin Creek Wastewater Treatment Plant processes all
of its sludge by composting. Sludge is removed from the aeration basins and
placed in a digester to reduce the amount of volatile solids and to allow the sludge
to thicken.
Supernate is decanted and returned to the head of the plant. The thickened solids
are taken to the Hickory Regional Compost Facility in Newton, NC for further
processing into compost material. During the composting process, the sludge is
stabilized sufficiently to meet all vector attraction and pathogen reduction
requirements. Once dry, the cured compost is distributed to various entities to
be used as a soil amendment.
If any additional information is needed, please feel free to contact me at (828)
466-7255.
Warmest Regards,
,.-.4• C —
Jaso ' . Brown
Ci ' .nager
Cc: Mr. Shawn Pennell, City of Hickory
Mr. Tom Winkler, City of Claremont
828-466-7255 City Hall • 828-466-7185 Fax
3288 East Main Street • Post Office Box 446 • Claremont, NC 28610

McLin Creek WWTP Permit
Renewal NC0081370
2020 Renewal
1. NPDES Form 2A
2. Part A
3. Part B
4. Part C
5. Part E
6. Attachments for Part E
7. Attachments for B.2

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
MCLin Creek WWTP, NC0081370 Renewal Catawba River Basin
2A NPDES FORM 2A APPLICATION OVERVIEW ¢-
NPDES
APPLICATION OVERVIEW
Form 2A has been developed in a modular format and consists of a "Basic Application Information" packet
and a "Supplemental Application Information" packet. The Basic Application Information packet is divided
into two parts. All applicants must complete Parts A and C. Applicants with a design flow greater than or
equal to 0.1 mgd must also complete Part B. Some applicants must also complete the Supplemental
Application Information packet. The following items explain which parts of Form 2A you must complete.
BASIC APPLICATION INFORMATION:
A. Basic Application Information for all Applicants. All applicants must complete questions A.1 through A.8. A treatment works
that discharges effluent to surface waters of the United States must also answer questions A.9 through A.12.
B. Additional Application Information for Applicants with a Design Flow z 0.1 mgd. All treatmerRECEiLV flows
greater than or equal to 0.1 million gallons per day must complete questions B.1 through B.6.
SEP 2 5 2019
C. Certification. All applicants must complete Part C(Certification).
SUPPLEMENTAL APPLICATION INFORMATION: NCDEQIDWRINPDES
D. Expanded Effluent Testing Data. A treatment works that discharges effluent to surface waters of the United States and meets
one or more of the following criteria must complete Part D(Expanded Effluent Testing Data):
1. Has a design flow rate greater than or equal to 1mgd,
2. Is required to have a pretreatment program(or has one in place),or
3. Is otherwise required by the permitting authority to provide the information.
E. Toxicity Testing Data. A treatment works that meets one or more of the following criteria must complete Part E(Toxicity Testing
Data):
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program(or has one in place), or
3. Is otherwise required by the permitting authority to submit results of toxicity testing.
F. Industrial User Discharges and RCRA/CERCLA Wastes. A treatment works that accepts process wastewater from any
significant industrial users(SIUs)or receives RCRA or CERCLA wastes must complete Part F(Industrial User Discharges
and RCRA/CERCLA Wastes). SIUs are defined as:
1. All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal Regulations(CFR)403.6 and
40 CFR Chapter I, Subchapter N(see instructions); and
2. Any other industrial user that:
a. Discharges an average of 25,)00 gallons per day or more of process wastewater to the treatment works(with certain
exclusions); or
b. Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic or organic
capacity of the treatment plant, or
c. Is designated as an SIU by the control authority.
G. Combined Sewer Systems. A treatment works that has a combined sewer system must complete Part G(Combined Sewer
Systems).
ALL APPLICANT;' MUST COMPLETE PART C (CERTIFICATION)
EPA Form 3510-2A(Rev.1-99) Replaces EPA forms 755)-6&7550-22. Page 1 of 22

McLin Creek WWTP Permit
Renewal NC0081370
2020 Renewal
Part A

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
McLin Creek WVVfP, NC0081370 Renewal Catawba River Basin
BASIC APPLICATION INFORMATION
PART A. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS:
All treatment works must complete questions A.1 through A.8 of this Basic Application Information Packet.
A.1. Facility Information.
Facility Name City of Claremont McLin Creek wwTP
Mailing Address PO Box 446
Claremont,NC 28610
Contact Person Caleb Bynum
Title Utilities Engineer
Telephone Number [phone]
Facility Address 2310 J&B Rd.
(not P.O.Box) Claremont,NC 28610
A.2. Applicant Information. If the applicant is different from the above,provide the following:
Applicant Name City of Claremont
Mailing Address PO Box 446
Claremont,NC 28610
Contact Person Jason Brown
Title City Manager
Telephone Number [phone]
Is the applicant the owner or operator(or both)of the treatment works?
• owner ® operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
® facility ❑ 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 NC0081370 PSD
UIC Other
RCRA Other
A.4. Collection System Information. Provide informat on 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
Claremont Collection System_ 800 Seperate Municipal
Total served
population
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6 E 7550-22. Page 2 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
McLin Creek WWTP , NC0081370 Renewal Catawba River Basin
A.5. Indian Country.
a. Is the treatment works located in Indian Country?
❑ Yes ® No
b. Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from(and eventually flows
through)Indian Country?
❑ Yes ® No
A.6. Flow. Indicate the design flow rate of the treatment plant(i.e.,the wastewater flow rate that the plant was built to handle). Also provide the
average daily flow rate and maximum daily flow rate for each of the last three years. Each year's data must be based on a 12-month time period
with the 12th month of"this year"occurring no more than three months prior to this application submittal.
a. Design flow rate 0.300 mgd
Two Years Ago Last Year This Year
b. Annual average daily flow rate 0.145 MGD 0.174 MGD 0.193 MGD
c. Maximum daily flow rate 0.355 MGD 0.522 MGD 0.520 MGD
A.7. Collection System. Indicate the type(s)of collection system(s)used by the treatment plant. Check all that apply. Also estimate the percent
contribution(by miles)of each.
® Separate sanitary sewer 100
❑ Combined storm and sanitary sewer
A.8. Discharges and Other Disposal Methods.
a. Does the treatment works discharge effluent to waters of the U.S.? ® Yes ❑ No
If yes,list how many of each of the following types of discharge points the treatment works uses:
i. Discharges of treated effluent 001
ii. Discharges of untreated or partially treated effluent 0
iii. Combined sewer overflow points 0
iv. Constructed emergency overflows(prior to the headworks) 0
v. Other N/A 0
b. Does the treatment works discharge effluent to basins,ponds,or other surface impoundments
that do not have outlets for discharge to waters of the U.S.? ❑ Yes ® No
If yes,provide the following for each surface impoundment:
Location:
Annual average daily volume discharge to surface impoundment(s) mgd
Is discharge ❑ continuous or ❑ intermittent?
c. Does the treatmert works land-apply treated wastewater? ❑ Yes ® No
If yes,provide the`ollowing for each land application site:
Location:
Number of acres:
Annual average daily volume applied to site: mgd
Is land application ❑ continuous or ❑ intermittent?
d. Does the treatmen'works discharge or transport treated or untreated wastewater to another
treatment works? ® Yes ❑ No
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 3 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
McLin Creek WWTP, NC0081 370 Renewal Catawba River Basin
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).
Biosolids are transported to a Class"A"composting facility by tanker.
If transport is by a party other than the applicant,provide:
Transporter Name City of Hickory
Mailing Address PO Box 398
Hickory,NC 28603
Contact Person Caleb Bynum
Title Utilities Engineer
Telephone Number [phone]
For each treatment works that receives this discharge,provide the following:
Name City of Hickory Regional Composting Facility
Mailing Address 3200 20th Ave.SE
Newton,NC 28658
Contact Person Paul Spencer
Title ORC
Telephone Number [phone]
If known,provide the NPDES permit number of the treatment works that receives this discharge WQ0004563
Provide the average daily flow rate from the treatment works into the receiving facility. 0.000487 mgd
e. Does the treatment works discharge or dispose of its wastewater in a manner not included
in A.8.through A.8.d above(e.g.,underground percolation,well injection): ❑ Yes ® No
If yes,provide the following for each disposal method:
Description of method(including location and size of 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: PERMIT ACTION REQUESTED: RIVER BASIN:
McLin Creek WWTP, NC0081370 Renewal Catawba River Basin
WASTEWATER DISCHARGES:
If you answered"Yes"to question A.8.a,complete questions A.9 through A.12 once for each outfall(including bypass points)through
which effluent is discharged. Do not include information on combined sewer overflows in this section. If you answered"No"to question
A.8.a,go to Part B,"Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd."
A.9. Description of Outfall.
a. Outfall number 001
b. Location Claremont 28610
(City or town,if applicable) (Zip Code)
Catawba North Carolina
(County) (State)
35°41'44"N 81°07'19"
(Latitude) (Longitude)
c. Distance from shore(if applicable) 0 ft.
d. Depth below surface(if applicable) N/A ft.
e. Average daily flow rate 0.193 mgd
f. Does this outfall have either an intermittent or a periodic discharge? ® Yes ❑ No (go to A.9.g.)
If yes,provide the following information:
Number of times per year discharge occurs: 4,380
Average duration of each discharge: 60 minutes
Average flow per discharge: 0.016 mgd
Months in which discharge occurs: 12 months
g. Is outfall equipped with a diffuser? ❑ Yes ® No
A.10. Description of Receiving Waters.
a. Name of receiving water McLin Creek
b. Name of watershed(if known)
United States Soil Conservation Service 14-digit watershed code(if known):
c. Name of State Management/River Basin(if known):Catawba River Basin
United States Geological Survey 8-digit hydrologic cataloging unit code(if known):
d. Critical low flow of receiving stream(if applicable)
acute cfs chronic 5 cfs
e. Total hardness of receiving stream at critical low flow(if applicable): mg/I of CaCO3
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 5 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
McLin Creek WVVfP, NC0081370 Renewal Catawba River Basin
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
El Primary 0 Secondary
El Advanced ❑ Other. Describe:
b. Indicate the following removal rates(as applicable):
Design BOD5 removal or Design CBOD5 removal 99
Design SS removal 98
Design P removal N/A
Design N removal 93
Other
c. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season,please describe:
Chlorine Gas
If disinfection is by chlorination is dechlorination used for this outfall? El Yes ❑ No
Does the treatment plant have post aeration? ® Yes ❑ No
A.12. Effluent Testing Information. All Applicants that discharge to waters of the US must provide effluent testing data for the following
parameters. Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent is
discharged. Do not include information on combined sewer overflows in this section. All information reported must be based on data
collected through analysis conducted using 40 CFR Part 136 methods. In addition,this data must comply with 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
MAXIMUM DAILY VALUE AVERAGE DAILY VALUE
PARAMETER
Value Units Value Units Number of Samples
pH(Maximum) 7.2 s.u.
Flow Rate 0.291 MGD 0.159 MGD 1308
Temperature(Winter) 14 °C 12 °C 75
Temperature(Summer) 22 °C 20 °C 111
For pH please report a minimum and a maximum daily value
MAXIMUM DAILY AVERAGE DAILY DISCHARGE
CISCHARGE ANALYTICAL
POLLUTANT METHOD ML/MDL
Conc. Units Conc. Units Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN BOD5 7.4 mg/L 4.7 mg/L 188 5210 B-2011 2.0mg/L
DEMAND(Report one) CBOD5
FECAL COLIFORM 587 #/100m1 4 #I100m1 195 9222 D-2006 1/100m1
TOTAL SUSPENDED SOLIDS(TSS) 3.1 mg/L 1.2 mg/L 187 2540 D-2011 2.5mg/L
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 7350-6&7550-22. Page 6 of 22

McLin Creek WWTP Permit
Renewal NC0081370
2020 Renewal
Part B

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
McLin Creek WWTP, NC0081370 Renewal Catawba River Basin
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 that flow into the treatment works from inflow and/or infiltration.
1200 gpd
Briefly explain any steps underway or planned to minimize inflow and infiltration.
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.
B.4. Operation/Maintenance Performed by Contractor(s).
Are any operational or maintenance aspects(related to wastewater treatment and effluent quality)of the treatment works the responsibility of a
contractor? ® Yes ❑ 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: City of Hickory
Mailing Address: PO Box 398
Hickory, NC 28603
Telephone Number: [phone]
Responsibilities of Contractor: Plant operation and maintenance
B.S. Scheduled improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or
uncompleted plans for improvements that will affect the wastewater treatment,effluent quality,or design capacity of the treatment works. If the
treatment works has several different implementation schedules or is planning several improvements,submit separate responses to question B.5
for each. (If none,go to question B.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: PERMIT ACTION REQUESTED: RIVER BASIN:
McLin Creek WWTP, NC0081370 Renewal Catawba River Basin
c. If the answer to B.5.b is"Yes,"briefly describe,including new maximum daily inflow rate(if applicable).
d. Provide dates imposed by any compliance schedule or any actual dates of completion for the implementation steps listed below,as
applicable. For improvements planned independently of local,State,or Federal agencies,indicate planned or actual completion dates,as
applicable. Indicate dates as accurately as possible.
Schedule Actual Completion
Implementation Stage MM/DD/YYYY MM/DD/YYYY
-Begin Construction / / / /
-End Construction / / / /
-Begin Discharge / / / /
-Attain Operational Level
e. Have appropriate permits/clearances concerning other Federal/State requirements been obtained? ❑ Yes ❑ No
Describe briefly:
B.6. EFFLUENT TESTING DATA(GREATER THAN 0.1 MGD ONLY).
Applicants that discharge to waters of the US must provide effluent testing data for the following parameters. Provide the indicated
effluent testing required by the permitting authority for each outfall through which effluent is discharged. Do not include information
on combine sewer overflows in this section. All information reported must be based on data collected through analysis conducted
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 pollutant scans and must be no more than four and on-half years old.
Outfall Number: 001
MAXIMUM DAILY AVERAGE DAILY DISCHARGE
DISCHARGE ANALYTICAL
POLLUTANT METHOD MUMDL
Conc. Units Conc. Units Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA(as N) 2.12 mg/L 0.77 mg/L 203 4500NH3 D-2011 0.10mg/L
CHLORINE(TOTAL <20 ug/L <20 ug/L 189 4500CI G-2011 20ug/L
RESIDUAL,TRC)
DISSOLVED OXYGEN 9.5 mg/L 8.7 mg/L 187 45000 G-2011 1 mg/L
TOTAL KJELDAHL 2.2 mg/L 2.2 mg/L 15 351.2 0.5mg/L
NITROGEN(TKN)
NITRATE PLUS NITRITE 9.8 mg/L 9.8 mg/L 15 353.2 0.3mg/L
NITROGEN
OIL and GREASE
PHOSPHORUS(Total) 3.2 mg/L 3.2 mg/L 15 365.3 0.3mg/L
TOTAL DISSOLVED SOLIDS
(TDS)
OTHER
END OF PART B.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 8 of 22

ill
McLin Creek WWTP Permit
Renewal NC0081370
2020 Renewal
Part C

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
McLin Creek WWTP, NC0081370 Renewal Catawba River Basin
BASIC APPLICATION INFORMATION
PART C. CERTIFICATION
All applicants must complete the Certification Section. Refer to instructions to determine who is an officer for the purposes of this
certification. All applicants must complete all applicable sections of Form 2A,as explained in the Application Overview. Indicate below which
parts of Form 2A you have completed and are submitting. By signing this certification statement,applicants confirm that they have reviewed
Form 2A and have completed all sections that apply to the facility for which this application is submitted.
Indicate which parts of Form 2A you have completed and are submitting:
El Basic Application Information packet Supplemental Application Information packet:
❑ Part D(Expanded Effluent Testing Data)
® 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 t' - Jason Brown,City Manager
Signature . _=i+' TLC--.
Telephone number 7255
OIL
Date signed `1 123 I,9
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
1

McLin Creek WWTP Permit
Renewal NC0081370
2020 Renewal
Part E

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
McLin Creek WWTP, NC0081370 Renewal Catawba River Basin
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 alternate methods.
If test summaries are available that contain all of the information requested below,they may be submitted in place of Part E.
If no biomonitoring data is required,do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests conducted in the past four and one-half years.
® chronic ❑ acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
column per test(where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number: Test number: Test number:
a. Test information.
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 method(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 rechlorination
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 15 of 22
l _ _

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
McClin Creek VWVfP, NC0081370 Renewal Catawba River Basin
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
Flow-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% 0/0
effluent
LC50
95%C.I.
Control percent survival % % %
Other(describe)
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 16 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
McClin Creek VVV TP, NC0081370 Renewal Catawba River Basin
Chronic:
NOEC
IC25 %
Control percent survival
Other(describe)
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Was reference toxicant test within
acceptable bounds?
What date was reference toxicant test
run(MM/DD/YYYY)?
Other(describe)
E.3. Toxicity Reduction Evaluation. Is the treatment works involved in a Toxicity Reduction Evaluation?
❑ Yes El No If yes,describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have submitted biomonitoring test information,or information regarding the
cause of toxicity,within the past four and one-half years,provide the dates the information was submitted to the permitting authority and a summary
of the results.
Date submitted: / / (MM/DD/YYYY)
Summary of results: (see instructions)
During the past 4'/2 years,the Claremont McLin Creek WVVTP has submitted 19 Chronic Toxicity tests on a quarterly
basis. All of the tests passed and those summaries are included in the attachment.
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

McLin Creek WWTP Permit
Renewal NC0081370
2020 Renewal
Attachment for Part E

ADDITIONAL INFORMATION
City of Claremont- McLin Creek POTW
NC0081370
Outfall 001
Part E-Toxicity Testing Data
Pass/Fail 7 Day Chronic-Ceriodaphnia dubia
Monitoring Period CollectionDate Test Date I EPA Lab ID No. NC Cert. No. Test Method Used IWC% Results
Group I %Mortality I Avg. Reprod. %Reduction Pass/Fail
EPA/600/4-91/002 Control 0.00% 20.09
1/1/15-3/31/15 1/5/15 1/7/15 NC000030 16 Method 1002 NC Modification 9% -3.70% Pass
February 1988
Test 0.00% 20.83
EPA/600/4-91/002 Control 0.00% 31.00
4/1/15-6/30/15 4/13/15 4/15/15 NC000030 16 Method 1002 NC Modification 9% -7.80% Pass
February 1988
Test 0.00% 33.42
EPA/600/4-91/002 Control 0.00% 27.83
7/1/15-9/30/15 7/6/15 7/8/15 NC000030 16 Method 1002 NC Modification 9% 2.40% Pass
February 1988
Test 0.00% 27.17
EPA/600/4-91/002 °
Control 0.00/0 28.83
0 0
10/1/15-12/31/15 10/19/15 10/21/15 NC000030 16 Method 1002 NC Modification 9% 9.25% Pass
February 1988
Test 0.00% 26.17
EPA/600/4-91/002 Control 0.00% 29.25
1/1/16-3/31/16 1/11/16 1/13/16 NC000030 16 Method 1002 NC Modification 9% 0 Pass
February 1988
Test 0.00% 29.25
EPA/600/4-91/002 Control 0% 23.5
4/1/16-6/30/16 4/4/16 4/6/16 NCO22 686 Method 1002 NC Modification 9% 9.2% Pass
February 1988
Test 0% 21.3
EPA/600/4-91/002 Control 0% 25.3
7/1/16-9/30/16 7/18/16 7/20/16 NCO22 686 Method 1002 NC Modification 9% 6.9% Pass
February 1988
Test 0% 23.5
EPA/600/4-91/002 Control 0% 21.3
10/1/16-12/31/16 10/3/16 10/5/16 NCO22 686 Method 1002 NC Modification 9% 7.4% Pass
February 1988
Test 0% 19.8

ADDITIONAL INFORMATION
City of Claremont- McLin Creek POTW
NC0081370
Outfall 001
Part E -Toxicity Testing Data
Pass/Fail 7 Day Chronic- Ceriodaphnia dubia
Monitoring Period CollectionDate Test Date EPA Lab ID No. NC Cert. No. Test Method Used IWC% Results
Group I %Mortality I Avg. Reprod. %Reduction Pass/Fail
EPA-821-R-02-013 Control 0% 20.8
1/1/17-3/31/17 1/9/17 1/11/17 NCO22 686 Method 1002, Fourth Edition 9% 7.6% Pass
October 2002
Test 0% 19.2
EPA-821-R-02-013 Control 0% 21.9
4/1/17-6/30/17 4/3/17 4/5/17 NCO22 686 Method 1002, Fourth Edition 9% -3.4% Pass
October 2002
Test 0% 22.7
EPA-821-R-02-013 Control 0% 22.7
7/1/17-q/30/17 7/1 n/17 7/12/13 NCO22 686 Method 1002, Fourth Edition 9% 5.5% Pass
October 2002
Test 0% 21.4
10/1/17-12/31/17 10/15/07 10/17/17 TN0003 375 EPA/600/4-89/001 9% Control 0% 24.0 0% Pass
Method 1002
Test 0% 24.8
EPA-821-R-02-013 Control 0% 21.9
1/1/18-3/31/18 1/22/18 1/24/18 NCO22 686 Method 1002, Fourth Edition 9% 1.9% Pass
October 2002
Test 0% 21.5
EPA-821-R-02-013 Control 0% 23.3
4/1/18-6/30/18 4/2/18 4/4/18 NCO22 686 Method 1002, Fourth Edition 9% 14.3% Pass
October 2002
Test 0% 19.9
EPA-821-R-02-013 Control 0%
1 7/1/18-9/30/18 7/9/18 7/11/18 NCO22 686 Method 1002, Fourth Edition 9% 24.0 -4.2% Pass
October 2002
Test 0% 25.0
EPA-821-R-02-013 Control 0% 22.3
10/1/18-12/31/18 10/1/08 10/3/18 NCO22 686 Method 1002, Fourth Edition 9% 11.6% Pass
October 2002
Test 0% 19.8

ADDITIONAL INFORMATION
City of Claremont- McLin Creek POTW
NC0081370
Outfall 001
par F -Toxicity TPcting Data
Pass/Fail 7 Day Chronic-Ceriodaphnia dubia
Monitoring Period CollectionDate Test Date EPA Lab ID No. NC Cert. No. Test Method Used IWC% Results
Group l %Mortality I Avg. Reprod. %Reduction Pass/Fail
EPA-821-R-02-013 Control 0% 21.9
1/1/19-3/31/19 1/7/19 1/9/19 NCO22 686 Method 1002, Fourth Edition 9% -3.8% Pass
October 2002
Test 0% 22.8
EPA-821-R-02-013 Control 0% 23.4
4/1/19-6/30 19 4/1/19 4/3/19 NCO22 686 Method 1002, Fourth Edition 9% 11.0% Pass
October 2002
Test 0% 20.8
EPA-821-R-02-013 Control 0% 21.9
7/1/19-9/30/19 7/8/19 7/10/19 NCO22 686 Method 1002, Fourth Edition 9% 4.6% Pass
October 2002
Test 0% 20.9
EPA-821-R-02-013 Control
NCO22 686 Method 1002, Fourth Edition
October 2002
Test
EPA-821-R-02-013 Control
NCO22 686 Method 1002, Fourth Edition
October 2002
Test
EPA-821-R-02-013 Control
NCO22 686 Method 1002, Fourth Edition
October 2002
Test
EPA-821-R-02-013 Control
NCO22 686 Method 1002, Fourth Edition
October 2002
Test
EPA-821-R-02-013 Control
NCO22 686 Method 1002, Fourth Edition
October 2002
Test

McLin Creek WWTP Permit
Renewal NC0081370
2020 Renewal
Attachment for Section B.2

Plant Influent
0.300 MGD
Digester
Aeration Reactor
0.150 MGD 0.150 MGD
Decanters
Sandfilter
Influent
Trough
Influent — Mud Well
Pump
Station
0.300 MGD
Sand Beds
•
Clear Well
Headworks
Bar Screen
Degritter Backwash — Original
Pumps J= Float
Switch
Effluent Pump' Gas Feed
Pump
Retrofit SO2 Cl2
I \Chlorine
Contact
Influent
0.300 MGD
(Design Flow)
I
Effluent
0.300 MGD to McLin Creek

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