NC0025542_Renewal (Application)_20141104

HI
CKORY City of Hickory
PO Box398
Hickory, NC 28603603
nlft
-N%"jjM � Phone: [phone]
North Carolina �-- Fax: [phone]
Life. Well Crafted. Email: kgreer(a-)hickorync.gov
Public Utilities
October 30, 2014
( @ ( �?V
NC Department of Environment and Natural Resources
Division of Water Quality/ Point Source Branch ` NOV o 3 2014
1617 Mail Service Center L
Raleigh, NC 27699-1617
DEW
401 &u.J i,4G
RE: NPDES Permit Renewal Application (NPDES# NC0025542)
City of Hickory-Catawba WWTP
Catawba, NC
Dear Sirs:
Enclosed please find for your review and processing the application package to renew the City of Hickory-
Catawba Wastewater Treatment Plant NPDES permit. The application package includes the following:
• EPA form 2A
o Part A
o Part B
o Part C
o Part D
o Part E
• Attachment for Part E
• Plant Flow Schematic/ Narrative
• Attachment for B.2 (e)
• Attachment for B.2 (a,b,d)
• Letter describing the Sludge Management Practices
If additional information is needed, please do not hesitate contacting me by phone at 828-323-7427 or via
email at kgreer(@hickorync.gov.
Sincerely,
Kevin B. Greer, PE, DS-A, CS-4
Assistant Public Services Director— Public Utilities
Enclosures
PC: M. Shawn Pennell, Collection System Manger

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14199
Hickory-Catawba WWTP, NC0025542
OMB Number 2040-0086
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 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>0.1 mgd. All treatment works that have design
flows greater than or equal to 0.1 million gallons per day must complete questions 6.1 through 13.6.
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 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14,99
Hickory-Catawba WWTP, NC0025542
OMB Number 2040-0088
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.I. Facility Information.
Facility name City of Hickory-Catawba Wastewater Treatment Plant
Mailing Address PO Box 398
Hickory,NC 28603
Contact person Shawn Pennell RECEIVEDIDENRIDWR
Title Utilities Collections Manager NOV 0 4 20%
Telephone number 828 323-7427
Facility Address 104 6th Ave NE PW"
(not P.O.Box) Ctawba,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 }Sevin B.Greer.P.E.
Title Assistant Public Services Director
Telephone number [phone]
Is the applicant the owner or operator(or both)of the treatment works?
V/ owner V/ operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
facility It/ 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
RCRA 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
Hickory-Catawba 1.100 Seperate Municipal
Collection System
Future 30.000 Separate Municipal
Total population served 31,100
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 2 of 21

FACILITY NAME AND PERMIT NUMBER: Form Appmved 1114,99
Hickory-Catawba WWTP,NCO025542 OMB Number 2040-0096
A.S. Indian Country.
a. Is the treatment works located in Indian Country?
Yes V( No
b. Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from(aril eventually flows
through)Indian Country?
Yes ✓ No
A.S. 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 3.0(proposed) mgd
Two Years Ago Last Year This Year
b. Annual average daily flow rate 0.068 0.081 0.103 mgd
c. Maximum daily flow rate 0.174 0.216 0.210 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.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 effluent 01
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.? Yes ✓ No
If yes,provide the following for each surface impoundment:
Location:
Annual average daily volume discharged to surface impoundments) mgd
Is discharge continuous or intermittent?
c. Does the treatment works land-apply treated wastewater? Yes ✓ 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 continuous or intermittent?
d. Does the treatment 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 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/1499
Hickory-Catawba WWTP,NC0025542 OMS Number 2040-0088
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).
Bio-solids are transported via tanker to a Class"A"composting Facility
If transport is by a party other than the applicant,provide:
Transporter name: City of H
Mailing Address: Po Box 398
Hickory,NC 28603
Contact person: Shawn Pennell
Title: Utilities Collections Manaaer
Telephone number: [phone]
For each treatment works that receives this discharge,provide the following:
Name: Regional Composting Facility
Mailing Address: 3200 20th Ave SE
Newton,NC 28658
Contact person: Wayne Carrol
Title: Chief Operator
Telephone number: [phone]
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.8.a 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 of 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 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14,99
Hickory-Catawba WWTP,NCO025542 OMB Number 2040-0086
WASTEWATER DISCHARGES:
If you answered"yes"to question A.8.a,complete questions A.9 through A.12 once for each outfall(including bypass pants)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 01
b. Location Catawba 28609
(City or town,if applicable) NCC )
C(atawryb)a
35 42'55" 8s104'25"
(Latitude) (Longitude)
c. Distance from shore(if applicable) 2 ft.
d. Depth below surface(if applicable) NIA ft.
e. Average daily flow rate 3.0 proposed;0.103 mgd
f. Does this outfall have either an intermittent or a
periodic discharge?
Yesy No (go to A.9.g J
If yes,provide the following information:
Number of 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
A.10.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 States Geological Survey 8-digit hydrologic cataloging unit code(if known):
d. Critical low flow of receiving stream(if applicable):
acute cis chronic Sum16/Win29 ds
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 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14199
' Hickory-Catawba WWTP, NC0025542 OMB Number 2040-0086
A.11.Description of Treatment.
a. What levels of treatment are provided?Check all that apply.
Primary V( Secondary
Advanced Other. Describe:
b. Indicate the following removal rates(as applicable):
Design BODS removal or Design CBODS 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 outfall?If disinfection varies by season,please describe.
Sodium Hypochlrite
If disinfection is by chlorination,is dechlorination used for this outfall? V( Yes No
d. Does the treatment plant have post aeration? V( 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: 01
PARAMETER MAXIMUM DAILY VALUE AVERAGE DAILY VALUE
Value Units Value Units Number of Samples
H Minimum 6.6 S.U.
H Maximum 8.3 !:
S.U.
Flow Rate 0.216 MGD 0.083 MGD 1339
Temperature nter 20 *C 12 *C 381
Temperature Summer 28 1*C 22*C *C 542
For pH please report a minimum and a maximum dailv value
POLLUTANT MAXIMUM DAILY AVERAGE DAILY DISCHARGE ANALYTICAL ML/MDL
DISCHARGE METHOD
Conc. Units Conc. Units Number of
Samples
CONVENTIONAL AND NONCONVENTIONAL COMPOUNDS.
BIOCHEMICAL OXYGEN BOD-5 40 mg/L 5.6 mg/L 191 5210 B-2001 2.0
DEMAND(Report one) CBOD-5
FECAL COLIFORM >6000 #/100ml 22 #100ml 194 9222 D-1997 1/100m1
TOTAL SUSPENDED SOLIDS(TSS) 1190 mg/L 11 15.9 mg/L 191 2540 D-1997 1.0
END OF PART A.
REFER TO THE APPLICATION OVERVIEW 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 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1114199
Hickory-Catawba WWTP,NC0025542 OMS Number 2040-0086
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>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.
3,500 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 1/4 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 that 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 redundancy 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:
Mailing Address:
Telephone Number:
Responsibilities of Contractor:
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.
01
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 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 111"9
Hickory-Catawba WWTP,NCO025542 OMB Number 2040-0088
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 02/ 18/2013 02/18/2013
—End construction 06/ 30/2015 _I l
Begin discharge 10/ 28/2014
—Attain operational level
e. Have appropriate permits/dearances concerning other Federal/State requirements been obtained? ✓ Yes No
Describe briefly: Environmental Assessment received FONSI and the EAA
approved.Permit and NTP for construction received
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 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
pollutant scans and must be no more than four and one-half years old.
Outfall Number:01
POLLUTANT MAXIMUM DAILY AVERAGE DAILY DISCHARGE
DISCHARGE
Conc. Units Conc. Units Number of ANALYTICAL ML/MDL
Samples METHOD
CONVENTIONAL AND NONCONVENTIONAL COMPOUNDS.
AMMONIA(as N) 12.1 mg/L 0.55 mg/L 191 4500NH3 D-1997 0.10
CHLORINE(TOTAL
RESIDUAL,TRC) <20 ug/L <20 ug/L 392 4500-Ci G-2000 20
DISSOLVED OXYGEN 10 mg/L 6.9 mg/L 191 4500-0 G-2001 0.10
TOTAL KJELDAHL
NITROGEN KN 3.0 mg/L 1.4 mg/L 15 351.2(1993) 0.50
NITRATE PLUS NITRITE
NITROGEN 18.5 mg/L 10.5 mg/L 15 353.2(1993) 0.10
OIL and GREASE
PHOSPHORUS(Total) 2.0 mg/1- 1.3 mg/L 15 365.3(1978) 0.30
TOTAL DISSOLVED
SOLIDS(TDS)
OTHER
END OF PART B.
REFER TO THE APPLICATION OVERVIEW 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 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14,99
Hickory-Catawba WWTP,NCO025542 OMB Number 2040-0086
BASIC APPLICATION INFORMATION
PART C.CERTIFICATION
All applicants must complete the Certification Section. Refer to instructions to determine who is an officer for the purposes of this certification. All
applicants must complete all applicable sections of Form 2A,as explained in the Application Overview. Indicate below which parts of Form 2A you
have completed and are submitting. By signing this certification statement,applicants confirm that they have reviewed Form 2A and have completed
all sections that apply to the facility for which this application is submitted.
Indicate which parts of Form 2A you have completed and are submitting:
✓ Basic Application Information packet Supplemental Application Information packet:
✓ Part D(Expanded Effluent Testing Data)
✓ Part E(Toxicity Testing: Biomonitoring Data)
Part F(Industrial User Discharges and RCRA/CERCLA Wastes)
Part G(Combined Sewer Systems)
ALL APPLICANTS MUST COMPLETE THE FOLLOIWING 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 Mick W.Berry,City Manager
Signature
Telephone number [phone]
Date signed L Of /� 4
Upon request of the permitting authority,you must submit any other information necessary to assess wastewater treatment practices at the treatment
works or identify appropriate permitting requirements.
SEND COMPLETED FORMS TO:
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 9 of 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14,99
City of Hickory,Catawba POTW NCO025542 OMB Number 2040-0086
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 Treatment 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>Q[
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 AVERAGE DAILY DISCHARGE
DISCHARGE
Conc. Units Mass Units Conc. Units Mass Units Number ANALYTICAL MLI MDL
of METHOD
Samples
METALS(TOTAL RECOVERABLE),CYANIDE,PHENOLS,AND HARDNESS.
ANTIMONY <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 200.7 5.0
ARSENIC <10 ug/L 0.008 lbs <10 ug/L 0.008 lbs 3 200.7 10.0
BERYLLIUM <1 ug/L 0.001 lbs <1 ug/L 0.001 lbs 3 200.7 1.0
CADMIUM <1 ug/L 0.001 lbs <1 ug/L 0.001 lbs 3 200.7 1.0
CHROMIUM <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 200.7 5.0
COPPER 18.4 ug/L 0.015 Ibs 10.9 ug/L 0.009 lbs 3 200.7 5.0
LEAD 2.6 ug/L 0.002 Ibs 1.24 ug/L 0.001 Ibs 3 200.8 0.10
MERCURY 43.4 ng/L 0.000 Ibs 14.5 ng/L 0.000 lbs 3 1631 E 2.5
NICKEL <5 ug/L 0.004 Ibs <5 ug/L 0.004 lbs 3 200.7 5.0
SELENIUM <10 ug/L 0.008 lbs <10 ug/L 0.008 lbs 3 200.7 10.0
SILVER <5 ug/L 0.004 Ibs <5 ug/L 0.004 lbs 3 200.7 5.0
THALLIUM <10 ug/L 0.008 lbs <10 ug/L 0.008 lbs 3 200.7 10.0
ZINC 168 ug/L 0.139 lbs 123 ug/L 0.102 lbs 3 200.7 10.0
CYANIDE 0.006 mg/11- 0.005 lbs 0.002 mg/L 0.004 lbs 3 450OCN E-1999 0.0050
TOTAL PHENOLIC COMPOUNDS 0.11 mg/L 0.091 Ibs 0.007 mg/L 0.006 Ibs 3 420.4 0.005
HARDNESS(AS CaCO3) 34900 ug/L 28.8 lbs 24667 ug/L20.4 Ibs 3 200.7 662
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 8 7550-22. Page 10 of 21

s
FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14199
City of Hickory,Catawba POTW NCO025542 OMB Number 2040-0088
Outfall number. 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT MAXIMUM DAILY AVERAGE DAILY DISCHARGE
DISCHARGE
Conc. Units Mass Units Conc. Units Mass Units Number ANALYTICAL ML/MDL
of METHOD
Samples
VOLATILE ORGANIC COMPOUNDS.
ACROLEIN <100 ug/L 0.083 lbs <5 ug/L 0.004 lbs 3 624 5
ACRYLONITRILE <50 ug/L 0.041 lbs <50 ug/L 0.041 lbs 3 624 50
BENZENE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
BROMOFORM <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
CARBON TETRACHLORIDE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
CLOROBENZENE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
CHLORODIBROMO-METHANE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
CHLOROETHANE <10 ug/L 0.008 lbs <2 ug/L 0.002 lbs 3 624 2
2-CHLORO-ETHYLVINYL <10 ug/L 0.008 lbs <5 ug/L 0.004 lbs 3 624 5
ETHER
CHLOROFORM 8 ug/L 0.007 lbs 6.3 ug/L 0.005 lbs 3 624 2
DICHLOROBROMO-METHANE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
1,1-DICHLOROETHANE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
1,2-DICHLOROETHANE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
TRANS-I,2-DICHLORO-ETHYLENE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
1,1-DICHLOROETHYLENE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
1,2-DICHLOROPROPANE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
1,3-DICHLORO-PROPYLENE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
ETHYLBENZENE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
METHYL BROMIDE <10 ug/L 0.008 lbs <2 ug/L 0.002 lbs 3 624 2
METHYL CHLORIDE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
METHYLENE CHLORIDE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
1,1,2,2-TETRACHLORO-ETHANE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
TETRACHLORO-ETHYLENE 1<5
5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
TOLUENE ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 11 of 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14199
City Of Hickory,Catawba POTW NCO025542 OMB Number 2040-W86
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT MAXIMUM DAILY AVERAGE DAILY DISCHARGE
DISCHARGE
Conc. Units Mass Units Conc. Units Mass Units Number ANALYTICAL MU MDL
Of METHOD
Samples
1,1,1-TRICHLOROETHANE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
1,1,2-TRICHLOROETHANE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
TRICHLORETHYLENE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
VINYL CHLORIDE <5 ug/L 0.004 lbs <2 ug/L 0.002 lbs 3 624 2
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 0.008 lbs <10 ug/L 0.008 lbs 3 625 10
2-CHLOROPHENOL <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
2,4-DICHLOROPHENOL <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
2,4-DIMETHYLPHENOL <10 ug/L 0.008 lbs <10 ug/L 0.008 lbs 3 625 10
4,6-DINITRO-O-CRESOL <20 ug/L 0.017 lbs <20 ug/L 0.017 lbs 3 625 20
2,4-DINITROPHENOL <50 ug/L 0.041 lbs <50 ug/L 0.041 lbs 3 625 50
2-NITROPHENOL <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
4-NITROPHENOL <50 ug/L 0.041 lbs <50 ug/L 0.041 lbs 3 625 50
PENTACHLOROPHENOL <25 ug/L 0.021 lbs <15 ug/L 0.012 lbs 3 625 10
PHENOL <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
2,4,6-TRICHLOROPHENOL <10 ug/L 0.008 lbs <10 ug/L 0.008 lbs 3 625 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 <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
ACENAPHTHYLENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
ANTHRACENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
BENZIDINE <50 ug/L 0.041 lbs <50 ug/L 0.041 lbs 3 625 50
BENZO(A)ANTHRACENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
BENZO(A)PYRENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
EPA Form 3510-2A(Rev. 1-99). Replaces EPA forts 7550-6&7550-22. Page 12 of 21

FACILITY NAME AND PERMIT NUMBER: Forth Approved 1/14199
City of Hickory,Catawba POTW NCO025542 OMB Number 2040-0086
Outfall number.001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT MAXIMUM DAILY AVERAGE DAILY DISCHARGE
DISCHARGE
Conc. Units Mass Units Conc. Units Mass Units Number ANALYTICAL MU MDL
Of METHOD
Samples
3,4 BENZO-FLUORANTHENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
BENZO(GHI)PERYLENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
SENZO(K)FLUORANTHENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
BIS( -CHLOROETHOXY)
METHANE ug/L/L 0.008 lbs <10 u 0.008 lbs 3 625 10
BIS(2-CHLOROETHYL)-ETHER <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
BIS(2-CHLOROISO-PROPYL) <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
ETHER
BIS(2-ETHYLHEXYL)PHTHALATE 14 ug/L 0.012 lbs 7.7 ug/L 0.006 lbs 3 625 5
4-BROMOPHENYL PHENYL ETHER <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
BUTYL BENZYL PHTHALATE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
2-CHLORONAPHTHALENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
4-CHLORPHENYL PHENYL ETHER <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
CHRYSENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
DI-N-BUTYL PHTHALATE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
DI-N-OCTYL PHTHALATE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
DIBENZO(A,H)ANTHRACENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
1,2-DICHLOROBENZENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
1,3-DICHLOROBENZENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
1,4-DICHLOROBENZENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
3,3•DICHLOROBENZIDINE <25 ug/L 0,021 lbs <25 ug/L 0.021 lbs 3 625 25
DIETHYL PHTHALATE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
DIMETHYL PHTHALATE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
2,4-DINITROTOLUENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
2,6-DINITROTOLUENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
1,2-DIPHENYLHYDRAZINE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6 8 7550-22. Page 13 of 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14199
City of Hickory,Catawba POTW NCO025542 OMS Number 2040-0088
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT MAXIMUM DAILY AVERAGE DAILY DISCHARGE
DISCHARGE
Conc. Units Mass Units Conc. Units Mass Units Number ANALYTICAL MU MDL
Of METHOD
Samples
FLUORANTHENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
FLUORENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
HEXACHLOROBENZENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
HEXACHLOROBUTADIENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
HEXACHLOROCYCLO- <10 ug/L 0.008 lbs <10 ug/L 0.008 lbs 3 625 10
PENTADIENE
HEXACHLOROETHANE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
INDENO(1,2,3-CD)PYRENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
ISOPHORONE <10 ug/L 0.008 lbs <10 ug/L 0.008 lbs 3 625 10
NAPHTHALENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
NITROBENZENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
N-NITROSODI-N-PROPYLAMINE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
N-NITROSODI-METHYLAMINE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
N-NITROSODI-PHENYLAMINE <10 ug/L 0.008 lbs <10 ug/L 0.008 lbs 3 625 10
PHENANTHRENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
PYRENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
1,2,4-TRICHLOROBENZENE <5 ug/L 0.004 lbs <5 ug/L 0.004 lbs 3 625 5
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 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 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1114199
City of Hickory,Catawba POTW NCO025542 OMB Number 2040-0086
SUPPLEMENTAL APPLICATION INFORMATION
PART E. TOXICITY TESTING DATA
POTM 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)POTM 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)POTM 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.
E.I. 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 dechlorination
EPA Form 3510-2A(Rev.1-99). Replaces EPA fomes 7550-6&7550-22. Page 15 of 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14199
City of Hickory,Catawba POTW NCO025542 OMB Number 2040ooae
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. It 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
LC5o
95%C.I. % % %
Control percent survival % % %
Other(describe)
EPA Form 3510-2A(Rev.1-99). Replaces EPA fomes 7550-6&7550-22. Page 16 of 21

FACILITY NAME AND PERMIT NUMBER: Form Approved 1/14199
City of Hickory,Catawba POTW NCO025542 OMB Number 2040 OQB6
Chronic:
NOEC % % %
IC25 % % %
Control percent survival % % %
Other(describe)
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Was reference toxicant test within
acceptable bounds?
What date was reference toxicant test
run MWDD ?
Other(describe)
E.3. Toxicity Reduction Evaluation. Is the treatment works involved in a Toxicity Reduction Evaluation?
—Yes 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 1/2 yrs,the Catawba POTW has submitted 25 chronic toxicity tests on a
quarterly basis. The test results are included in the attachments.
END OF PART E.
REFER TO THE APPLICATION OVERVIEW TO DETERMINE WHICH OTHER PARTS OF FORM
2A YOU MUST COMPLETE.
EPA Form 3510-2A(Rev.1-99). Replaces EPA fomes 7550-6&7550-22. Page 17 of 21

City of Hickory
Post Office Box 398
HICKORY
Hickory, NC 28603
M i - Phone: [phone]
Fax: [phone]
Email: [e-mail]
Public Utilities
October 21, 2014
NC Department of Environment and Natural Resources
Division of Water Quality/ Point Source Branch
1617 Mail Service Center
Raleigh NC 27699-1617
RE: NPDES Permit Renewal Application (NPDES# NC0025542)
City of Hickory/Catawba WWTP
Catawba North Carolina
Dear Sirs:
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 the tank before being loaded onto tankers and taken to the Hickory
Regional Compost Facility (Permit#W00004563) 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 to be used as a soil amendment.
If additional information is needed, please feel free to contact me at(828) 323-7427.
Sincerely,
M. Shawn Pennell
Utilities Collections Manager
pc: Kevin B. Greer, Assistant Public Services Director

HSMM
Project CITY OF HICKORY-CATAWBA WWTP Project No. 60709
Title ITEM B.2-TOPOGRAPHIC MAP Phase
NPDES FORM 2A Date 11/4/08
Des By _ Dept CIVIL Rev Date
Ckd By Sketch SK-1 Sheet No. 1 Of 1
CL �I
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w .•
HI CORY-CATAW
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Sl RA S
1 o O ER
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VICINITY MAP
1 " = 2000'
Ref Drawing:

PROPOSED FLOW DIAGRAM
CITY OF HICKORY-CATAWBA WWTP
CATAWBA, NC
SECONDARY
w CLARIFIER
w
V) AERATION BASIN
w 0.75 MGD
m j o 0.75 MGD FILTERS
a 0 m
U g
zz w 0.75 MGD 1 .5 MGD
SECONDARY 0000
CLARIFIER POST FLOW
AERATION MONITORING
SPLITTER 0.75 MGD 3.0 MGD
BOX
FILTERS 3.0 MGD 3.0 MGD TO LYLE
3.0 MGD 3.0 MGD AERATION BASIN 1 .5 MGD CREEK
+
(PHASE II) OUTFALL
3.0 MGD 0000
INFLUENT 0.75 MGD
0.75 MGD 3.0 MGD
1 .5 MGD
CHLORINATION/
DECHLORINATION
RTN SLUDGE SECONDARY
'CLARIFIER
(PHASE II)
TO REGIONAL
SLUDGE COMPOST
PUMP STATION FACILITY
HSMM
TANKER TRUCK
SLUDGE CIVIL
STORAGE PART B.3—FLOW DIAGRAM
11/04/01 60709 1

CATAM-13A Geospatial
Information Services Real Estate Search
Y�.
a
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V)
z
Q _
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1 in=300ft
5
Parcel: 378218413604, 104 6TH AV NE CATAWBA, 28609
Owners: HICKORY CITY OF,
Owner Address: PO BOX 398
Values - Building(s): $110,400, Land: $42,200, Total: $152,600
This map/report product was prepared from the Catawba County,NC Geospatial Information Services. Catawba County has made substantial efforts
to ensure the accuracy of location and labeling information contained on this map or data on this report.Catawba County promotes and recommends
the independent verification of any data contained on this map/report product by the user.The County of Catawba,its employees,agents,and
personnel,disclaim,and shall not be held liable for any and all damages,loss or liability,whether direct,indirect or consequential which arises or may
arise from this map/report product or the use thereof by any person or entity.
Copyright 2014 Catawba County NC
10/16/2014

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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 I %Mortality Avg.Reprod. %Reduction Pass/Fail
EPA/600/4-91/002 Method Control 8.30% 17.70
1/1/10-3/31/10 2/1/2010 2/3/2010 0030 16 1002.0 NC Modification 2.1% 0% P
February 1988
Test 0.00% 21.20
EPA/600/4-91/002 Method Control 0.00% 17.70
4/1/10-6/30/10 5/3/2010 5/5/2010 0030 16 1002.0 NC Modification 2.1% 0% P
February 1988
Test 0.00% 19.50
EPA/600/4-91/002 Method Control 16.70% 22.90
7/1/10-9/30110 8/2/2010 8/4/2010 0030 16 1002.0 NC Modification 2.1% 0% P
February 1988
Test 0.00% 25.90
EPA/600/4-91/002 Method Control 0.00% 25.80
10/1/10-12/31/10 11/1/2010 11/3/2010 0030 16 1002.0 NC Modification 2.1% 0% P
February 1988
Test 0.00% 28.10
EPA/600/4-91/002 Method Control 9.09% 18.55
1/1/11 -3/31/11 2/7/2011 2/9/2011 0030 16 1002.0 NC Modification 2.1% 33.50% P
February 1988
Test 16.67% 12.33
EPA 821-R-02-013 Control 8.33% 21.50
4/1/11 -6/30/11 5/2/2011 5/4/2011 0030 16 Method 1002.0 2.1% -10.08% P
4th Edition 2002
Test 0.00% 23.67
EPA 821-R-02-013 Control 0.00% 26.25
7/1/11 -9/30/11 8/1/2011 8/3/2011 0030 16 Method 1002.0 2.1% 3.49% P
4th Edition 2002
Test 0.00% 25.33
EPA 821-R-02-013 Control 0.00% 26.58
10/1/11 -12/31/11 10/31/2011 11/2/2011 0030 16 Method 1002.0 2.1% 4.70% P
4th Edition 2002
Test 0.00% 25.33

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 I %Mortality Avg.Reprod. %Reduction Pass/Fail
EPA 821-R-02-013 Control 0.00% 21.83
1/1/12-3/31/12 2/6/2012 2/8/2012 0030 16 Method 1002.0 2.1% -3.44% P
4th Edition 2002
Test 0.00% 22.58
EPA 821-R-02-013 Control 0.00% 21.00
4/1/12-6/30/12 5/7/2012 5/9/2012 0030 16 Method 1002.0 2.1% -15.48% P
4th Edition 2002
Test 0.00% 24.25
EPA 821-R-02-013 Control 0.00% 25.75
7/1/12-9/30/12 8/6/2012 8/8/2012 0030 16 Method 1002.0 2.1% -1.29% P
4th Edition 2002
Test 0.00% 26.08
EPA 821-R-02-013 Control 0.00% 22.75
10/1/12-12/31/12 11/12/2012 11/14/2012 0030 16 Method 1002.0 2.1% 32.23% F
4th Edition 2002
Test 8.34% 15.42
EPA 821-R-02-013 Control 0.00% 26.25
1/1113-3/31/13 2/4/2013 2/6/2013 0030 16 Method 1002.0 2.1% -5.08% P
4th Edition 2002
Test 0.00% 27.58
EPA 821-R-02-013 Control 8.33% 35.42
4/1/13-6/30/13 5/13/2013 5/15/2013 0030 16 Method 1002.0 2.1% -0.71% P
4th Edition 2002
Test 0.00% 35.67
EPA 821-R-02-013 Control 0.00% 32.58
7/1/13-9/30/13 8/19/2013 8/21/2013 0030 16 Method 1002.0 2.1% 5.63% P
4th Edition 2002
Test 0.00% 30.75
EPA 821-R-02-013 Control 0.00% 28.17
10/1/13-12/31/13 11/18/2013 11/20/2013 0030 16 Method 1002.0 2.1% -2.07% P
4th Edition 2002
Test 0.00% 28.75

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
EPA 821-R-02-013 Control 0.00% 29.25
1/1/14-3/31/14 2/17/2014 2/19/2014 0030 16 Method 1002.0 2.1% -0.85% P
4th Edition 2002
Test 0.00% 29.5
EPA 821-R-02-013 Control 0.00% 28.67
4/1/14-6/30/14 5/12/2014 5/14/2014 0030 16 Method 1002.0 2.1% -14.83% P
4th Edition 2002
Test 0.00% 32.92
EPA 821-R-02-013 Control 9.09% 15.91
7/1/14-9/30/14 8/4/2014 8/6/2014 0030 16 Method 1002.0 2.1% -23.62% P
4th Edition 2002
Test 0.00% 19.67
EPA 821-R-02-013 Control
Method 1002.0
4th Edition 2002
Test
EPA 821-R-02-013 Control
Method 1002.0
4th Edition 2002
Test
EPA 821-R-02-013 Control
Method 1002.0
4th Edition 2002
Test
EPA 821-R-02-013 Control
Method 1002.0
4th Edition 2002
Test
EPA 821-R-02-013 Control
Method 1002.0
4th Edition 2002
Test

ADDITIONAL INFORMATION .
City of Hickory-Catawba WWTP
NCO025542
Outfall 001 •
Part E-Toxicity Testing Data
Full Range Chronic-Ceriodaphnia dubia
RESULTS
CollectionDate Test Start Date EPALabID NC Cert. No. Test Method Used
Group 7-Day Survival Average Control NOEC LOEC
Reduction Reproduction CV
Control 22.8
1.05% 25.1 -10.09
EPA 821-R-02-013 1.5% 25.7 -12.72
12/10/2012 12/12/2012 0030 16 Method 1002.0 16.644 4.2% >4.2%
4th Edition 2002 2.1% 26.2 -14.91
3.15% 25.6 -12.28
4.2% 26.5 -16.28
Control 28.8
1.05% 27 6.25
EPA 821-R-02-013 1.5% 25.6 11.1
1/7/2013 1/9/2013 0030 16 Method 1002.0 10.679 4.2% >4.2%
4th Edition 2002 2.1% 25.8 12.5
3.15% 26.5 7.99
4.2% 28.8 1.04
EPA 821-R-02-013
Method 1002.0
4th Edition 2002
EPA 821-R-02-013
Method 1002.0
4th Edition 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 NC CertNo. Test Method Used
.No. Group 7-Day Survival Average Growth Avg Wt.Per NOEC LOEC
per Larvae Sury Control
Control 97.5 0.704
1.05% 92.5 0.657
EPA 821-R-02-013 1.575% 97.5 0.671
8/18/2013 8/20/2013 0030 16 Method 1000.0 0.724 4.2 >4.2%
4th Edition 2002 2.1% 92.5 0.712
3.15% 100.0 0.694
4.20% 97.5 0.752
Control 100.0 0.705
1.05% 97.5 0.613
EPA 821-R-02-013 1.575% 100.0 0.596
11/7/2013 11/19/2013 0030 16 Method 1000.0 0.705 4.2 >4.2%
4th Edition 2002 2.1% 100.0 0.665
3.15% 100.0 0.718
4.20% 100.0 0.675
Control 97.4 0.723
1.05% 100.0 0.700
EPA 821-R-02-013 1.575% 94.9 0.647
2/16/2014 2/18/2014 0030 16 Method 1000.0 0.744 4.2 >4.2%
4th Edition 2002 2.1% 100.0 0.639
3.15% 100.0 0.680
4.20% 100.0 0.718
Control 100.0 0.337
1.05% 100.0 0.316
EPA 821-R-02-013 1.575% 100.0 0.334
5/11/2014 5/13/2014 0030 16 Method 1000.0 0.337 4.2 >4.2%
4th Edition 2002 2.1% 100.0 0.323
3.15% 100.0 0.320
4.20% 97.5 0.322