NC0025542_Renewal (Application)_20200116

HICKORY
Carolina ��
Life Well Crafted_
Public Utilities
October 30, 2019
North Carolina Department of Environmental Quality
Division of Water Quality, NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: NPDES Permit Renewal Application (NPDES NC0025542)
City of Hickory— Hickory -Catawba WWTP
Catawba, NC
Dear Sir or Madam,
City of Hickory
PO Box 398
Hickory, NC 28603
Phone: [phone]
Fax: [phone]
Email: cbvnum(a)hickorync.gov
Enclosed for your review and processing you will find the application package for the renewal of
the City of Hickory's — Hickory -Catawba Wastewater Treatment Plant NPDES permit. Included in
this cover letter is a brief narrative explaining the biosolids management plan for the Catawba
Wastewater Treatment Plant, as well as a request for this plant to be designated as an
Exceptionally Performing Facility.
The application package includes the following:
• NPDES Form 2A
o PartA
o Part B
o Part C
o Part D
o Part E
• Attachments for Part B
• Attachments for Part E
• Exceptionally Performing Facility (EPF) Justification and Statistical Analyses
The City of Hickory's Hickory -Catawba Wastewater Treatment Plant processes all of its sludge by
composting. Sludge is removed from the secondary clarifiers and dewatered in aerated sludge
tanks. The thickened solids are stored in a tank before being loaded into tankers and taken to the
Hickory Regional Compost Facility (Permit # WQ0004563) in Newton, NC, for further processing
into class "A" 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 for use as a soil amendment.
The City of Hickory is requesting reduced monitoring for this facility per the Exceptionally
Performing Facilities guidance. The Catawba WWTP facility meets. all of the requirements for the
reduced monitoring. There were no civil penalties assessed during the past three years; the
permittee nor any of its employees have been convicted of criminal violations under the clean

water act within the last five years; the facility is not under an SOC; and the facility is not on the
EPNs Quarterly Noncompliance Report. Attached you will find the justification and statistical
analysis to support the designation of this plant as an Exceptionally Performing Facility.
Thank
you in advance
for your review. Should you have any questions
regarding
this submittal,
please
do not hesitate
to contact me at [phone] or via email at
cbvnum(cDhickorvnc.cov.
Sincerely
Caleb M. Bynum, El
Utilities Engineer

Hickory -Catawba WWTP Permit
Renewal NCO025542
2020 Renewal
1. NPDES Form 2A
I Part A
3, PartB
4. Part C
5. Part E
6. Attachments for Part E
7. Attachments for Part B
8. Exceptionally Performing Facility Justification and Statistical Analysis

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Hickory - Catawba WWTP, NCO025542
Renewal
Catawba
FORM
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 0A 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 treatment works that have design flows
greater than or equal to 0.1 million gallons per day must complete questions BA through B.6.
C. Certification. All applicants must complete Part C (Certification).
SUPPLEMENTAL APPLICATION INFORMATION:
D. Expanded Effluent Testing Data. A treatment works that discharges effluent to surface waters of the United States and meets
one or more of the following criteria must complete Part D (Expanded Effluent Testing Data):
1. Has a design flow rate greater than or equal to 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 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 25,000 gallons per day or more of process wastewater to the treatment works (with certain
exclusions); or
b. Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic or organic
capacity of the treatment plant; or
C. Is designated as an SIU by the control authority.
G. Combined Sewer Systems. A treatment works that has a combined sewer system must complete Part G (Combined Sewer
Systems),
ALL APPLICANTS MUST COMPLETE PART C (CERTIFICATION)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 1 of 22

Hickory -Catawba WWTP Permit
Renewal NCO025542
2020 Renewal
Part A

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Hickory -Catawba WWTP, NCO025542
Renewal
Catawba
BASIC APPLICATION INFORMATION
PART A. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS:
All treatment works must complete questions A.1 through AS of this Basic Application Information Packet.
Al, Facility Information.
Facility Name City of Hickory - Catawba Wastewater Treatment Plant
Mailing Address PO Box 398
Hickory. NC 28603
Contact Person Caleb Bynum El
Title Utilities Engineer
Telephone Number [phone]
Facility Address 104 6th Ave NE
(not P.O. Box) Catawba NC 28609
A.2, Applicant Information. If the applicant Is different from the above, provide the following:
Applicant Name City of Hickory
Mailing Address PO Box 398
Hickory, NC 28603
Contact Person Shawn Pennell
Title Assistant Public Services Director
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 NCO025542 PSD
UIC Other
RCR4 Other
A.4. Collection System Information. Provide information on municipalities and areas served by the facility. Provide the name and population of each
entity and, if known, provide information on the type of collection system (combined vs. separate) and Its ownership (municipal, private, etc.).
Name Population Served Type of Collection System Ownership
Town of Catawba 1181 Separate Municipal
Southeast Catawba County 2309 Separate Municipal
Total population served 3490
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 2 of 22

FACILITY NAME AND PERMIT NUMBER:
Hickory - Catawba WWTP, NCO025542
A.5. Indian Country.
a. Is the treatment works located in Indian Country?
PERMIT ACTION REQUESTED: RIVER BASIN:
Renewal Catawba
❑ as ®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 121h month of'lhis year' occurring no more than three months prior to this application submittal.
a. Design flow rate 1.5 mgd
Two Years Aoo Last Year This Year
b. Annual average daily flow rate 0.052 0.092 0.088
c. Maximum daily flow rate 0.423 0.603 0.727
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.S. 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 effuent
ii. Discharges of untreated or partially treated effluent
I.
Combined sewer overflow points
V.
Constructed emergency overflows (prior to the headworks)
v. Other
b. Does the treatment works discharge effluent to basins, ponds, or other surface Impoundments
that do not have outlets for discharge to waters of the U.S.? ❑ Yes
If yes, provide the following for each surface impoundment:
Location:
Annual average daily volume discharge to surface impountlment(s)
Is discharge ❑continuous or ❑ intermiflent?
C. Does the treatment works land -apply treated wastewater?
If yes, provide the following for each land application site:
d.
Location:
Number of acres:
Annual average daily volume applied to site:
Is land application ❑continuous or ❑intermittent?
Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works?
5®i
❑ Yes
mgd
mgd
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:
Hickory - Catawba VVWTP, NCO025542
Renewal
Catawba
If yes, describe the means) by which the wastewater from the treatment works is discharged or transported to the other treatment works
(e.g., tank truck, pipe).
Blosolids are transported to the Regional Compost Facility (Class A Composting) by tanker truck
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 Keith D. Rhyne
Title Plant Superintendent
Telephone Number [phone]
For each treatment works that receives this discharge, provide the following:
Name City of Hickory Regional Compost Faclility
Mailing Address 3200 20th Ave SE
Newton NC 28658
Contact Person Paul Spencer
Title Project Manager ORC
Telephone Number [phone]
If known, provide the NPDES permit number of the treatment works that receives this discharge
W00004563
Provide the average daily flow rate from the treatment works into the receiving facility. 0.000
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):
N/A
Annual daily volume disposed by this method: N/A
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:
Hickory - Catawba WWTP,
NCO025542
I
Ren
I 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.6.a, go to Part B, "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0A mgd."
A.B. Description of Outfall.
a. Outfall number
b. Location
(City or town, if applicahle) (Zip Cotle)
(County) (State)
35"42'55" 81°04'25"
(Latitude) (Longitude)
C. Distance from shore (if applicable) 2 ft.
d. Depth below surface (if applicable) N/A ft.
e. Average daily flaw rate 0.089 mgd
f. Does this outfall have either an Intermittent or a periodic discharge? ❑ Yes ® No (go to A.9.g.)
If yes, provide the following information:
Number f times per year discharge occurs:
Average duration of each discharge:
Average flow per discharge: mgd
Months In which discharge occurs:
g. Is outfall equipped with a diffuser? ❑ Yes ® No
Description of Receiving Waters.
a. Name of receiving water Lyle 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 Slates Geological Survey 8-digit hydrologic cataloging unit code (if known):
d. Critical low flow of receiving stream (if applicable)
acute
cis
chronic Summer l6/VMnter 29
cfs
e. Total hardness
of receiving
stream at critical low flow
(if applicable):
mg/I of CaCOa
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:
Hickory - Catawba WWTP, NCO025542
Renewal
Catawba
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
® Primary ® Secondary
® Advanced ❑ Other. Describe:
b. Indicate the following removal rates (as applicable):
Design BOD5 removal or Design CBOD5 removal 98 %
Design SS removal 88 %
Design P removal 88 %
Design N removal 95 %
Other %
c. What type of disinfection is used for the effluent from this oulfall? If disinfection varies by season, please describe:
Sodium Hvoochlorite
If disinfection is by chlorination is dechlorination used for this oulfall? ID 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 QAIQC requirements of
40 CFR Part 136 and other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136, At a
minimum, effluent testing data must be based on at least three samples and must be no more than four and one-half years apart.
Outfall number: 001
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
PARAMETER
Value
Units
Value
of Samples
pH (Minimum)
6.5
s.u.pH
(Maximum)
7.5
s.u.
MUnitsNumber
Flow Rate
0,240
MGD
0.076
1339
Temperature (Winter)
15
'C
11
355
Temperature (Summer)
25
°C
23
°C
555
For pH please report a minimum
and a maximum daily value
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
DISCHARGE
ANALYTICAL
MLIMDL
POLLUTANT
METHOD
Number of
Conc.
Units
Conc,
Units
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN
BOD5
3.9
m /L
1,7
nn /L
485
5210 B-2011
2.0 m /L
DEMAND (Report one)
CBOD5
FECAL COLIFORM
403
#/100m1
2
#/100ml
653
9222 D-2006
1/100m1
TOTAL SUSPENDED SOLIDS (TSS)
5.5
m /L
2.5
mg/L
485
2540 D4011
2.5 m /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 7550-8 & 7550-22. Page 6 of 22

Hickory -Catawba WWTP Permit
Renewal NCO025542
2020 Renewal

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Hickory - Catawba WWTP, NCO025542
Renewal
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 2 0.1 mgd must answer questions B.1 through B.6. All others go to Part C (Certification).
BA, Inflow and Infiltration. Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration.
3,500 gpd
Briefly explain any steps underway or planned to minimize inflow and infiltration.
8.2. 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 1/. 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.
BA. Operation/Maintenance Performed by Contractor(s).
Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works the responsibility of a
contractor? ❑ Yes ® No
If yes, list the name, address, telephone number, and status of each contractor and describe the contractor's responsibilities (attach additional
pages if necessary).
Name:
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. lithe
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 ouffall number (assigned in question A.9) for each ouffall that is covered by this implementation schedule.
001
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 Corms 7550-6 & 7550-22. Pa9e 7 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:wal
Hickory - Catawba WWTP, NCO025542
RentCatawba
C. ' If the answer to B.5.b is "Yes;' briefly describe, including new maximum daily inflow rate (If applicable).
NIA
d. Provide dates Imposed by any compliance schedule or any actual dales of completion for the Implementation steps listed below, as
applicable. For Improvements planned Independently of local, 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 l I I I
- Attain Operational Level
e. Have appropriate permits/clearances concerning other Federal/State requirements been obtained? ❑ Yes ❑ No
Describe briefly:
B.S. 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
QA1QC 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
POLLUTANT
DISCHARGE
ANALYTICAL
ML/MDL
Number of
METHOD
Conc,
Units
Conc,
Units
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA (as N)
1.6
mglL
0,46
mg/L
489
4500NH3D-2011
0.10 mg/L
CHLORINE (TOTAL
<20
ug/L
<20
ug/L
530
4500CI G-2011
20 ug/L
RESIDUAL, TRC)
DISSOLVED OXYGEN
9.5
mg/L
8.0
mill
654
45000 G-2011
1 mglL
TOTAL KJELDAHL
1.1
mg/L
1.1
mg1L
44
361.2
0.6 mg/L
NITROGEN (TKN)
NITRATE PLUS NITRITE
6.2
mg/L
6.2
mill
44
353.2
0.3 mg/L
NITROGEN
OIL and GREASE
<5
mg/L
<5
mg/L
3
1664E
6 mglL
PHOSPHORUS (Total)
2.8
mg/L
2.8
mg/L
44
365.3
0.3 mg/L
TOTAL DISSOLVED SOLIDS
316
mg/L
282
mg/L
3
2540C
26 mg1L
(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

Hickory -Catawba WWTP Permit
Renewal NCO025542
2020 Renewal
Part C

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Hickory -Catawba WWTP, NCO025542
Renewal
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:
N Basic Application Information packet Supplemental Application Information packet:
N Part D(Expanded Effluent Testing Data)
N Part E (Toxicity Testing: Blomoniloring Data)
❑ Part F (Industrial User Discharges and RCRAICERCLA Wastes)
❑ Part G (Combined Sower 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 galhedng 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 Warren Cif Manager
/
`W000d
N Signature r---"- �J X-T
Telephone number (8281 323-7412
Date signed 10/29/19
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.N
SEND COMPLETED FORMS TO:
NCDENRI DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
EPA Form 3510-2A (Rev. 1-99). Replecos EPA forms 7550.6 8 7550-22. Page 9 of 22

Hickory -Catawba WWTP Permit
Renewal NCO025542
2020 Renewal
Part D

FACILITY NAME AND PERMIT NUMBER:
Hickory - Catawba WWTP, NCO025542
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 Information and any other information required by the permitting authority for each outfall through which
effluent is discharged. Do not include Information on combined sewer overflows in this section. All information reported must be based on data collected
through analyses conducted using 40 CFR Part 136 methods. In addition, these data must comply with QA/QC requirements of 40 CFR Part 136 and
other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. Indicate In the blank rows provided below
any data you may have on pollutants not specifically listed in this form. At a minimum, effluent testing data must be based on at least three pollutant
scans and must be no more than four and one-half years old.
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
ML/MDL
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
Samples
METALS (TOTAL RECOVERABLE), CYANIDE, PHENOLS, AND HARDNESS.
ANTIMONY
<5
ug/L
<0.003
Ibs
<5
ug/L
<0.003
Ibs
3
200.7
5 ug/L
ARSENIC
<10
ug/L
<0.007
Ibs
<10
ug/L
<0.007
Ibs
3
200.7
10 uglL
BERYLLIUM
<1
ug/L
<o.0007
Ibs
<1
ug/L
<0.0007
Ibs
3
200.7
1 ug/L
CADMIUM
<1
uglL
<0.0007
Ibs
<0.39
ug/L
<0.0003
Ibs
3
200.8
0,08 ug/L
CHROMIUM
<5
ug/L
<0.003
Ibs
<5
ug/L
<0.003
Ibs
3
200.7
5 ug/L
COPPER
<5
ug/L
<0.003
Ibs
1.7
0.001
Ibs
3
200.8
1 ug/L
LEAD
<5
ug/L
<0.003
Ibs
0.05<0.00000
rngJL
Ibs
3
200.7
5 ug/L
MERCURY
3.37
ng/L
.00NO2
Ibs
2.48
.0000a2
Lbs
3
1631 E
0.5 ng/L
NICKEL
<5
ug/L
<0.003
Ibs
<5
<0,003
Ibs
3
200.7
5 ug/L
SELENIUM
<10
uglL
<0.007
Ibs
<3.7
ug/L
<0.002
Ibs
3
200.8
0.50 ug/L
SILVER
<5
ug/L
<0.003
Ibs
<2
ug/L
<0.001
Ibs
3
200.8
0.50 ug/L
THALLIUM
<10
ug/L
<0.007
Ibs
<6.3
ug/L
<0.006
Ibs
3
200.7
10 ug/L
ZINC
49.1
ug/L
0.033
Ibs
32.2
ug/L
0.021
Ibs
3
200.7
10 ug/L
CYANIDE
<0.006
mg/L
<0.005
Ibs
<0.003
mg/L
<0.005
Ibs
3
450OCN E
0.008 mg/L
TOTAL PHENOLIC
COMPOUNDS
0,022
mg/L
0.015
Ibs
0.007
mg/L
0.005
Ibs
3
420.4
0.01 mglL
HARDNESS (as CaCO3)
52700
ug/L
35.2
Ibs
46067
ug/L
30.7
Ibs
3
23408
662 mg/L
EPA Form 3510-2A (Rev. 1-99). Replaces EPA farms 7550-6 & 7550-22. Page 10 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Hickory - Catawba WWTP, NCO025542
Renewal
Catawba
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
POLLUTANT
ANALYTICAL
MLIMDL
Number
Cone.
Units
Mass
Units
Cone,
Units
Mass
Units
of
METHOD
Samples
VOLATILE ORGANIC COMPOUNDS
ACROLEIN
<5
ug/L
<0.003
Ibs
<5
ug/L
<0.003
Ibs
3
624
5 ug/L
ACRYLONITRILE
<50
uglL
<0.033
Ibs
<50
ug/L
<0303
Ibs
3
624
50 ug/L
BENZENE
<2
ug/L
<0.001
Ibs
42
ug/L
<0.001
Ibs
3
624
2 ug/L
BROMOFORM
<2
uglL
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 uglL
CARBON
<2
ug/L
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 ug/L
TETRACHLORIDE
CHLOROBENZENE
<2
ug/L
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 ug/L
CHLORODIBROMO-
2.2
ug/L
0.001
Ibs
0.7
ug/L
0.0005
Ibs
3
624
2 ug/L
METHANE
CHLOROETHANE
<2
ug/L
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 ug/L
2-CHLOROETHYLVINYL
<5
ug/L
<0.003
Ibs
<5
ug/L
<0.003
Ibs
3
624
6 ug/L
ETHER
CHLOROFORM
78.6
ug/L
0,052
Ibs
50.1
ug/L
0,033
Ibs
3
624
2 ug/L
DICHLOROBROMO-
17.8
ug/L
0,012
Ibs
9.8
ug/L
0.007
Ibs
3
624
2 ug/L
METHANE
1,1-DICHLOROETHANE
<2
ug/L
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 ug/L
1,2-DICHLOROETHANE
<2
ug/L
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 ug/L
TRANS-I,2-DICHLORO-
<2
ug/L
<0.001
Ibs
<2
uglL
<0.001
Ibs
3
624
2 ug/L
ETHYLENE
1,1-DICHLORO-
<2
ug/L
<0.001
Ibs
<2
uglL
<0.001
Ibs
3
624
2 ug/L
ETHYLENE
1,2-DICHLOROPROPANE
<2
ug/L
<0.001
Ibs
<2
uglL
<0.001
Ibs
3
624
2 uglL
1,3-DICHLORO-
<2
ug/L
<0.001
Ibs
<2
u9n.
<0.001
Ibs
3
624
2 ug/L
PROPYLENE
ETHYLBENZENE
<2
ug/L
<0.001
Ibs
<2
uglL
<0.001
Ibs
3
624
2 ug/L
METHYL BROMIDE
11.7
ug/L
0.008
Ibs
3.9
ug/L
0,003
We
3
624
2 ug/L
METHYL CHLORIDE
<2
ug/L
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
Zug/L
METHYLENE CHLORIDE
<2
ug/L
<0.001
Ibs
<2
uglL
40.001
Ibs
3
624
2 ug/L
1,1,2,2-TETRA-
<2
ug/L
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 ug/L
CHLOROETHANE
TETRACHLORO-
<2
uglL
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 uglL
ETHYLENE
TOLUENE
<2
ug/L
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 ug/L
EPA Form 3510-2A (Rev. i-99). Replaces EPA forms 7550-6 8 7550-22. Page 11 of 22

FACILITY NAME AND PERMIT NUMBER:
Hickory - Catawba WWTP, NCO025542
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
Oulfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
ML/MDL
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
Samples
1,1,1-
TRICHLOROETHANE
<2
ug/L
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 ug/L
111,2-
TRICHLOROETHANE
<2
ug/L
<0.001
Ibs
<2
ug/L
<0.001
Ibs
3
624
2 ug/L
TRICHLOROETHYLENE
<2
ug/L
<0.001
Ibs
<2
uglL
<0.001
Ibs
3
624
2 ug/L
VINYL CHLORIDE
42
ug/L
<0.001
Ibs
<2
uglL
<0.001
Ibs
3
624
2ug/L
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
<0.007
Ibs
<9.8
ug/L
<0.007
Ibs
3
626
10 ug/L
2-CHLOROPHENOL
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
6 uglL
2,4-13ICHLOROPHENOL
<6
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
5 ug/L
2,4-DIMETHYLPHENOL
<10
ug/L
<0.007
Ibs
<9.8
ug/L
<0.007
Ibs
3
625
10 u91L
4,6-DINITRO-O-CRESOL
<20
ug/L
<0.013
Ibs
<19.6
ug/L
<0.013
Ibs
3
625
20 ug/L
2,4-DINITROPHENOL
<60
u91L
<0.033
Ibs
<49.1
ug1L
<0.033
Ibs
3
625
60 ug/L
2-NITROPHENOL
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
5 ug/L
4-NITROPHENOL
<60
ug/L
<0.033
Ibs
09,11
uglL
<0.033
Ibs
3
625
50 ug/L
PENTACHLOROPHENOL
<10
ug/L
<0.07
Ibs
<9.8
uglL
<0.007
Ibs
3
625
10 u9IL
PHENOL
<5
ug/L
<0.003
Ibs
<4.9
u91L
<0.003
Ibs
3
625
6 ug/L
21416-
RIC
TRIOHLOROPHENOL
<10
ug/L
<0.007
Ibs
<9.6
uglL
<0.007
Ibs
3
625
10 u9IL
Use this space (or a separate sheet) to provide Information on other acid -extractable compounds requested by the permit writer
BASE -NEUTRAL COMPOUNDS
ACENAPHTHENE
<6
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
5 ug/L
ACENAPHTHYLENE
<6
ug/L
<0.003
Ibs
0,11
ug/L
<0.003
Ibs
3
626
5 ug/L
ANTHRACENE
<6
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
5 uglL
BENZIDINE
<50
ug/L
<0.033
Ibs
<49.1
ug/L
<0.033
Ibs
3
625
50 ug/L
BENZO(A)ANTHRACENE
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
5 ug/L
BENZO(A)PYRENE
<5
u91L
<0.003
Ibs
<4.9
u91L
<0.003
Ibs
3
625
5 ug/L
EPA Form 3510-2A (Rev. i-90). Replaces EPA forms 7550-6 & 7550-22. Page 12 Of 22

FACILITY NAME AND PERMIT NUMBER;
PERMIT ACTION REQUESTED:
RIVER BASIN:
VW Hickory - Catawba VfP, NCO025542
Renewal
Catawba
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
POLLUTANT
ANALYTICAL
ML/MDL
Number
Cone.
Units
Mass
Units
Cone.
Units
Mass
Units
of
METHOD
Samples
3,4 BENZO-
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
5 ug/L
FLUORANTHENE
BENZO(GHI)PERYLENE
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
626
5 ug/L
BENZO(K)
<5
ug/L
<0.003
Ibs
<4.9
uglL
<0.003
Ibs
3
626
5 ug/L
FLUORANTHENE
BIS (2-CHLOROETHOXY)
<10
ug/L
<0.007
Ibs
<9.8
uglL
<0.007
Ibs
3
625
10 ug/L
METHANE
315 (2-CHLOROETHYQ-
<6
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
5 ug/L
ETHER
BIS (2-CHLOROISO-
<6
ug/L
<0.003
Ibs
0,13
ug/L
<0.003
Ibs
3
626
5 ug/L
PROPYL)ETHER
BIS (2-ETHYLHEXYL)
<6
ug/L
<0.003
Ibs
0.9
ug/L
<0.003
Ibs
3
625
5 uglL
PHTHALATE
4-BROMOPHENYL
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
The
3
625
5 ug/L
PHENYLETHER
BUTYL BENZYL
<5
ug/L
<0.003
We
0.9
ug/L
<0.003
Ibs
3
625
5 ug/L
PHTHALATE
2-CHLORO-
<6
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
626
5 ug/L
NAPHTHALENE
4-CHLORPHENYL
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
5 ug/L
PHENYLETHER
CHRYSENE
<5
ug1L
<0.003
Ibs
<4.9
uglL
<0.003
Ibs
3
625
5 ug/L
01-N-BUTYL PHTHALATE
<5
uglL
<0.003
Has
<4.9
ug/L
<0.003
Ibs
3
625
5 uglL
DI-N-OCTYL PHTHALATE
<6
uglL
<0.003
We
0.9
uglL
40,003
Ibs
3
625
6 uglL
DIBENZO(A,H)
<6
uglL
<0.003
We
<4.9
ug/L
<0.003
Ibs
3
625
6 ug1L
ANTHRACENE
1,2-DICHLOROBENZENE
<5
uglL
<0.003
Ibs
<4.9
ug1L
<0.003
Ibs
3
626
5 uglL
1,3-DICHLOROBENZENE
<5
uglL
<0.003
Ibs
<4.9
ug/L
bs
3
625
6 ug/L
1,4-DICHLOROBENZENE
<6
ug/L
<0.003
Ibs
<4.9
ug/L
4<0,017
bs
3
625
6 ug/L
3,3-DICHLORO-
<25
ug/L
<0.017
Ibs
<24.6
ug/L
bs
3
625
26 ug1L
BENZIDINEDIETHYL
PHTHALATE
<5
ug1L
<0.003
Ibs
<4.9
ug/L
bs
3
626
5ug/L
DIMETHYL PHTHALATE
<5
uglL
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
6 ug/L
2,4-DINITROTOLUENE
<5
uglL
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
626
5 ug/L
2,6-DINITROTOLUENE
7.3
uglL
0,002
We
2A
ug/L
0.002
Ibs
3
625
5 ug/L
1,2-DIPHENYL-
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
626
5 ug/L
HYDRAZINE
EPA Form 3510-2A (Rev. 1-Oe). Replaces EPA forms 7550-6 & 7550-22. Page 13 of 22

FACILITY NAME AND PERMIT NUMBER:
Hickory - Catawba WWTP, NCO025542
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
Oulfall number: 001 (Complete once for each oulfall discharging effluent to waters of the United Slates.)
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
ML/MDL
Conic,
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
Samples
FLUORANTHENE
<6
ug/L
<0.003
be
0.9
ug/L
<0.003
Ibs
3
625
6 ug/L
FLUORENE
<5
ug/L
<0.003
be
0.9
uglL
<0.003
Ibs
3
625
5 ug/L
HEXACHLOROBENZENE
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
5 ug/L
HEXACHLORO-
BUTADIENE
<5
ug/L
<0.003
be
<4.9
ug/L
<0.003
Ibs
3
625
5 ug/L
HEXACHLOROCYCLO-
PENTADIENE
<10
ug/L
<0.007
Ibs
<9.8
ug/L
<0.007
Ibs
3
625
10 ug/L
HEXACHLOROETHANE
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
626
6 ug/L
INDENO(1,2,3-CD)
PYRENE
445
ug/L
<0.003
Ibs
0.9
uglL
<0.003
Ibs
3
625
5 ug/L
ISOPHORONE
<10
ug/L
<0.007
Ibs
<9.8
ug/L
<0.007
Ibs
3
625
10 ug/L
NAPHTHALENE
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
626
5 ug/L
NITROBENZENE
<5
uglL
<0.003
Ibs
0.9
ug/L
<0.003
Ibs
3
626
5 ug/L
N-NITROSODI-N-
PROPYLAMINE
<5
ug/L
<0.003
Ibs
0.9
ug/L
<0.003
Ibs
3
625
5 ug/L
N-NITROSODI-
METHYLAMINE
<5
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
be
3
625
5 ug/L
N-NITROSODI-
PHENYLAMINE
<10
ug/L
<0.007
The
<9.8
ug/L
<0.007
Ibis
3
625
10 ug/L
PHENANTHRENE
<5
ug/L
<0.003
Ibs
0.9
ug/L
<0.003
His
3
625
5 uglL
PYRENE
<5
ug/L
<0.003
Ibs
<4.9
uglL
<0.003
be
3
626
5 uglL
1,2,4-
TRICHLOROBENZENE
<6
ug/L
<0.003
Ibs
<4.9
ug/L
<0.003
Ibs
3
625
S ugl L
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

Hickory -Catawba WWTP Permit
Renewal NCO025542
2020 Renewal
Part E

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVERBASIN:
Hickory - Catawba WWTP, NCO025542
Renewal
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 EA 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.
EA, 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 lest (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 dechlorination
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 15 of 22

FACILITY NAME AND PERMIT NUMBER:
Hickory - Catawba WWTP, NCO025542
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:
I. For each lest, 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
Statle-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%
effluent
%
%
%
LCsn
95% C.I.
%
%
%
Control percent survival
%
%
%
Other (describe)
EPA Farm 3510-2A (Rev. 1-99). Replaces EPA forms 7550-8 & 7550.22. Page 16 of 22

FACILITY NAME AND PERMIT NUMBER:
Hickory - Catawba WWTP, NCO025542
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
Chronic:
NOEC
%
%
%
IC25
%
%
%
Control percent survival
%
%
%
Other (describe)
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Was reference toxicant lest within
acceptable bounds?
What date was reference toxicant lest
run (MM/DD/YYYY)?
Other (describe)
E.3. Toxicity Reduction Evaluation. Is the treatment works
❑ Yes ❑ No If yes, describe:
involved in a Toxicity Reduction Evaluation?
EA, Summary of Submitted Biomonitoring Test Information. If you have submitted biomonitoring test Information, or Information regarding the
cause of toxicity, within the past four and one-half years, provide the dates the information was submitted to the permitting authority and a summary
of the results.
Date submitted: / / (MM/DD/YYYY)
Summary of results: (see instructions)
During the past 4% years the Catawba W WTP has submitted 21 chronic toxicity tests along with the second species tests
required for permit renewal Those summaries
are included in the attachment
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER
OF FORM 2A YOU MUST COMPLETE.
PARTS
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 17 of 22

Hickory -Catawba WWTP Permit
Renewal NCO025542
2020 Renewal
Attachment for Part E

ADDITIONAL INFORMATION
City of Hickory - Catawba WWTP
NCO025542
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
% Mortality
Avg. Reprod.
% Reduction
Pass/Fail
111/17 - 3/31/17
2/6/2017
2/8/2017
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 18.6
100.0%
Fail
October 2002
Test 100% 0.0
4/1/17-6/30/17
5/1/2017
5/3/2017
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 22.2
13.2%
Pass
October 2002
Test 8% 19.3
7/1/17-9/30/17
8/7/2017
8/9/2017
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 23.3
-2.2%
Pass
October 2002
Test 0% 23.8
10/1/17 - 12/31/17
11/5/2017
11/7/2017
TN0003
375
EPA/600/4-89/001
Method 1002
15`i
Control 0% 28.9
4.5%
Pass
Test 0% 27.6
1/1/18 - 3/31/18
2/5/2018
2/7/2018
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 20.0
19.2%
Pass
October 2002
Test 8% 16.2
4/1/18 - 6/30/18
5/7/2018
5/9/2018
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 23.0
-5.8%
Pass
October 2002
Test 0% 24.3
7/1/18 - 9130118
8/6/2018
8/8/2018
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 23.3
7.2%
Pass
October 2002
Test 0% 21.6
1011/18 - 12/31/18
11/5/2018
11/7/2018
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 20.8
-0.4%
Pass
October 2002
Test 0% 20.9

ADDITIONAL INFORMATION
City of Hickory - Catawba WWTP
NCO025542
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
% Mortality
Avg. Reprod.
% Reduction
Pass/Fail
1/1/19 - 3/31/19
2/4/2019
2/6/2019
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 20.3
-3.7%
Pass
October 2002
Test 0% 21.1
4/1/19 - 6/30/19
5/6/2019
5/8/2019
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 22.8
8.0%
Pass
October 2002
Test 0% 21.0
7/1/19 - 9/30119
8/5/2019
8/7/2019
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 20.7
2.8%
Pass
October 2002
Test 0% 20.1
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
Control
October 2002
Test
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
Control
October 2002
Test
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
Control
October 2002
Test
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
Control
October 2002
Test
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
Control
October 2002
Test

ADDITIONAL INFORMATION
City of Hickory - Catawba WWTP
NCO025542
Outfall 001
Part E - Toxicity Testing Data
Chronic Whole Testing - Ceriodaphnia Dubia
CollectionDate
Test Start Date
EPA Lab ID
No.
NC Cart. No.
Test Method Used
RESULTS
Group
7-Day Survival
Average
Reduction
Control
Reproduction CV
NOEC
LOEC
3/20/2017
3/22/2017
NCO22
686
EPA-821-R-02-013
Method 1002
Fourth Edition
October 2002
Control
22.8
16%
60.0%
>60.00%
3.7
21.8
4.4%
Z5
21.0
7.9%
15.0
22.1
3.1
30.0
21.4
6.1%
60.0
20.7
9.2%
N0022
686
EPA-821-R-02-013
Method 1002
Fourth Edition
October 2002
Control
22.5
9%
60.0%
>60.00%
3.7
20.4
9.3%
7.5
20.2
10.2%
15.0
19.8
12.0%
30.0
20.3
9.8 %
60.0
20.4
9.3%
NCO22
686
EPA-821-R-02-013
Method 1002
Fourth Edition
October 2002
NCO22
686
EPA-821-R-02-013
Method 1002
Fourth Edition
October 2002

ADDITIONAL INFORMATION
City of Hickory - Catawba WWTP
NCO025542
Outfall 001
Part E - Toxicity Testing Data
Pimephales Promelas
RESULTS
CollectionDate
Test Start Date
EPA Lab ID
No.
NC Cert. No.
Test Method Used
Group
7-Day Survival
Average Growth
per Larvae
Avg Wt. Per
Sury Control
NOEC
LOEC
Control
100.0%
0.8615
EPA-821-R-02-013
3.8
90.0%
0.7275
11/4/2018
11/6/2018
NCO22
686
Method 1000
Fourth Edition
October 2002
7.5
87.5%
0.0000
0.8615
60%
>60%
15.0
97.5%
0.7915
30.0
97.5%
0.8418
60.0
97.5%
0.8360
Control
100.0%
0.5108
_
EPA-821-R-02-013
3.8
97.5%
0.4505
2/3/2019
2/5/2019
NCO22
686
Method 1000
Fourth Edition
October 2002
7.5
100.0%
0.4970
0.5108
30%
42.4%
15.0
97.5%
0.4430
30.0
95.0%
0.4490
60.0
81.6%
0.4143
Control
100.0%
0.7117
EPA-821-R-02-013
3.8
100.0%
0.6819
5/5/2019
5/7/2019
NCO22
686
Method 1000
Fourth Edition
October 2002
7.5
92.3%
0.6558
0.7117
60%
>60%
15.0
97.5%
0.5988
30.0
97.5%
0.6433
60.0
97.5%
0.6425
Control
95.0%
0.6010
EPA-821-R-02-013
3.8
97.5%
0.6335
8/4/2019
8/6/2019
NCO22
686
Method 1000
Fourth Edition
October 2002
7.5
100.0%
0.5455
0.6384
60%
>60%
15.0
100.0%
0.6043
30.0
100.0%
0.5920
60.0
92.5%
0.5828

ADDITIONAL INFORMATION
City of Hickory - Catawba WWTP
NCO025542
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
% Mortality
Avg. Reprod.
%Reduction
Pass/Fail
1/1115 - 3/31/15
2/23/2015
2/25/2015
NC000030
16
EPA/600/4-91/002
Method 1002 NC Modification
2.1 %
Control 000% 1967
..
-31.78 %
Pass
February 1988
Test 0.00% 25.92
4/1/15 - 6130115
5/11/2015
5/13/2015
NC000030
16
EPA1600/4-91/002
Method 1002 NC Modification
2.1 %
Control 0.00% 25.25
-7.59%
Pass
February 1988
Test 0.00% 27.17
711115 - 9/30/15
8/3/2015
8/5/2015
N0000030
16
EPA/600/4-91/002
Method 1002 NC Modification
2.1 %
Control 0.00% 23.92
-5.23 %
Pass
February 1988
Test 0.00% 25.17
10/1/15 - 12/31/15
11/9/2015
11/11/2015
NC000030
16
EPA/600/4-91/002
Method 1002 NC Modification
2.1 %
Control 000% 3100
..
-2.69%
Pass
February 1988
Test 0.00% 31.83
1/1116 - 3/31/16
3/23/2016
3/30/2016
NC000030
16
EPA/600/4-91/002
Method 1002 NC Modification
15%
Control 0% 20.7
6.0%
Pass
February 1988
Test 0% 19.4
4/1/16-6/30/16
5/2/2016
5/4/2016
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 19.4
9.4%
Pass
October 2002
Test 0% 17.6
7/1/16 - 9/30/16
8/1/2016
8/3/2016
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 24.9
-2.3%
Pass
October 2002
Test 0% 25.5
10/1/16 - 12/31/16
10/31/2016
11/2/2016
NCO22
686
EPA-821-R-02-013
Method 1002, Fourth Edition
15%
Control 0% 24.3
6.8%
Pass
October 2002
Test 0% 22.7

Hikeory-Catawba WWTP Permit
Renewal NCO025542
2020 Renewal
Attachment for Part B

>a
'z
o�
U
op
2Q
x�
O
0�
�¢
�o
U
U
Xx
, II
� II
g u
ill
II
Ail
�Jl
u
e
u
ti/ g ^
.�5.

a rz x
Fit I
It
It 11
I.
Ids
It
it
die X,1 YIF
y
IF
FF
Air F4 I IF
Flom It I I
.,
E 0 44 1
I>
�.IF
IF
R't=v�' a;
IF Fit I I
<�
IF
IF
a d IF
�il s �-
/f
FOL1
r a id `
5
/
`!rr✓�i,�°„�r."3+'� fir10
'
LLLL
N`
10.
kk
mr-
n-
q _§'
FF
IF
it v
F y
h . - .r'
1 C YIF ,yrIF ILL 't+
,r g
y e
�5
rr
( ti� rL Y� ._.�FI _iI,
I IF IF I
IF

14
`.et'_........
IN
I�r
�t'r 7 '� N.
,li �t l t, Jam,/' v
y a` `� IN
�r N ar. T
IN
PC
IN Nz
Nit I
n " .�._
illp
Cl
IN i
Nj Cr
is } .ak
P!F
Cr
r+p el'
r. Iv
Iv
F, Y iAt r IN
tor^/ /�f - \ t
� l Yrl
c rcQ �J ji y ✓,/ If NIN
L IN
�-
r� r w, �.
IN
e-11
%1 % r '
���� / �4 11. ��rp�� f, ,
pmN
mil
/��—�✓��IIVI '��S zs �i, �� h-
IN OM 4�
1 i
aE Coll�1t < < ��� Jaipt
I 1$il�ils�
J✓
a `-oil '
1. �• �1 �..
ul
���-11
-
.I IF
1 `RAJ tk _ \v 1 t
IN IN
No
IN
IN
�pit
,• , �IN IN —1•w f'` wit
l� A^' n� a �
`��� ,poll IN It IN ip� Njpffl—�
AN
`�-i ,
'.
Apr k
11
INC
�I p
J w+r
A yr 4 �1 4AFj
`J'w IN I ��"r�S- 4 vl� ��
xpC
It
1�
t
(((# y �I
,, A 1° E / I IN
-

IF
FIFO IF
ION
o�
ngON Agr/
e�'
flk+"ON I OFF I
M1A L P `!
hlE� Ir OF
OF OF
owr IF I `qy II a �+OFF :. �y '&.
IL
i'1 Oil OFF
OFF
A-rti 4� 1
Till
.I WF•., 9. 1 ..
r
NN
Or 4
ILL I
•:4r I NOW
..>af.� 14
IF
ll
.. F
OF
IF I
gk�� •l
�z�:. �' '�!
Fillx d .
9t
IFIS
a may, •€ tI IN
t%Fill I
IF
F'-Fit I
114
tli
R „
till
lip
,;:� �..
OF
br
IF
a
OF
�m
a �
:N
IF ANIF
O
IF O a
IF
a
h' F o

Hickory -Catawba WWTP Permit
Renewal NCO025542
2020 Renewal
EPF Justification and Statistical Analysis

Exceptionally Performing Facility (EPF) Justification and Statistical Analyses
BOD I TSS I NH,/N I Fecal Coliform
3-Year Effluent Arithmetic Mean
BOD
TSS
NH3/N
1.6
3.1
0.52
3-Year Cffluent Geometic Mean
Fecal Coliform
2.7
Number of daily sampling resulK over 200%
of monthly average limit
(Limn 16 over 3yrl
800 TSS NH,/N
0 0 '23
Numberof daily sampling results over 200%
of weekly average limit
(Umh 20 over 3 yrs.)
Fecal Coliform
4
Number of non -monthly average limit violations during
previous year (2018-limit 2)
BOD
TSS
EZN:
Fecal Coliform
0
0
1
0
Catawba WWTF (NC0025542)
Monthly Average Limits
BOD
10.0 mg/I
I < 5.0 mg/I required
TSS
30.0 mg/I
I < 15.0 all required
NH3/N
2.0 mill
I < 1.0 mg/I required
Fecal Coliform
200 cfu/100 mI
<100cfu/100ml required
'Geometric Mean'
Monthly Average Limits (Fecal Coliform -Weekly)
BCD
10.0 mg/I
< 20.0 mg/I required
T55
30.0 mill
560.0 mg/I required
NH3/N
2.0 mg/I
54.0 mg/I required
Fecal Coliform
400 cfu/200 ml
9800 du/100 call required
HjCKORY
ife. Well Cra'tec.
'Note -13 NH3/N daily sampling results over 200%of the monthly average limit were due to excessive rainfall and extreme coltl
temperatures. Documentation may be found on the OMR's from l/201], 4/2017, and 2/2019.
Conviction of Criminal Violations of Clean Water Act by Permittee/Employees (5 yrs.):
Facility Under an 60[ for target parameter effluent limit noncompliance:
Facility on EPA's Quarterly Noncompliance report for target parameter limit violations:
:L]
NO
NO
Statistical analyses were hazed on analytiol results hrom 8/2016-8/2019