NC0021407_renewal application_20190505

Permit NCO021407�
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this
permit issuance, any previously issued permit hearing this number is no longer effective. Therefore, the exclusive
authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and
provisions included herein.
RECEIVED/[ ENR(DWR
The Town of Highlands is hereby authorized to: MAR II 5 2015
1. Continue to operate a 1.50 MGD dual -path wastewater treatment plant that includes
the following components:
➢ Influent screen
➢ Dual 0.75 MGD sequencing batch reactor tanks, each with 25 HP floating mixers,
gravity decanters and 3.0 HP sludge wasting pumps
➢ 100 HP blowers with fine bubble diffusers and motorized inlet valves
➢ Sludge digesting system
➢ 331,876-gallon post -equalization basin
➢ UV Disinfection
➢ Tertiary filtration
➢ Ultrasonic flow meter
➢ 355 GPM dual -pump lift station
This facility is located west of Highlands at the Highlands WWTP below Lake Sequoyah
Dam in Macon County.
2. Discharge wastewater from said treatment works at the location specified on the
attached map into the Cullasaja River, classified Class B-Trout waters in the Little
Tennessee River Basin.

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FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
HIGHLANDS WWTP, NCO021407 Renewal I Little Tennessee
FORM
2A
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 B.1 through 8.6.
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.
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

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
HIGHLANDS VVWTP, NCO021407
Renewal
Little Tennessee
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 Highlands WWTP
Mailing Address P.O. Box 460
Highlands, NC 28741
Contact Person Lamar Nix
Title Public Works Director
Telephone Number [phone]
Facility Address 1184 Arnold Rd. Hiahlands NC 28741
(not P.O. Box)
A.2. Applicant Information. If the applicant is different from the above, provide the following:
Applicant Name Town of Hiahlands
Mailing Address P.O. Box 460 '
Highlands, North Carolina 28741
Contact Person Jacob Allen
Title Operator in Responsible Charge
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 NCO021407 PSD N/A
UIC N/A Other WOCS 00186
RCRA N/A Other N/A
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
Hiahlands Collection System 941 Separate Municipal
Total population served 941
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 2 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
HIGHLANDS WWTP, NCO021407 Renewal I Little Tennessee
A.S. Indian Country.
a. Is the treatment works located in Indian Country?
❑ Yes ® No
b. Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from (and eventually flows
through) Indian Country?
❑ Yes ® No
A.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 years data must be based one 12-month time period
with the 12'h month of "This year" occurring no more than three months prior to this application submittal.
a. Design flow rate 1.5 mgd
b. Annual average daily flow rate
Two Years Ado
.205 mad
Last Year
.209 mad
This Year
0.271 mad (20181
C. Maximum daily flow rate .595 mad .435 mod 1.324 mod
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 .. NIA %
A.B. 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
ii. Discharges of untreated or partially treated effluent NIA
iii. Combined sewer overflow points N/A
iv. Constructed emergency overflows (prior to the headworks) N/A
V. Other NIA N/A
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.? ❑ Yea ® No
If yes, provide the following for each surface impoundment:
Location:
Annual average daily volume discharge to surface impoundment(s) N/A 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: NIA 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 7550-8 & 7550-22. Page 3 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
HIGHLANDS VWVTP, NCO021407
Renewal
Little Tennessee
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).
N/A
If transport is by a party other than the applicant, provide:
Transporter Name
Mailing Address
Contact Person
Title
Telephone Number ( 1
For each treatment works that receives this discharge, provide the following:
Name
Mailing Address
Contact Person
Title
Telephone Number ( )
If known, provide the NPDES permit number of the treatment works that receives this discharge
Provide the average daily flow rate from the treatment works into the receiving facility.
mgd
e. Does the treatment works discharge or dispose of its wastewater in a manner not included
in A.8. through A.8.d above (e.g., underground percolation, well injection): - ❑ Yes
® No
If yes, provide the following for each disposal method:
Description of method (including location and size of site(s) if applicable):
Annual daily volume disposed by this method:
Is disposal through this method ❑ continuous or ❑ intermittent?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550-22. Page 4 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
HIGHLANDS WWTP, NCO021407 Renewal Little Tennessee
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!& go to Part B "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd."
A.9. Description of Outfall.
a. Outfall number 001
b. Location Town of Hiahlands 28741
(City or town, if applicable) (Zip Code)
Macon NC
(County) (State)
(Latitude)
C. Distance from shore (if applicable)
d. Depth below surface (if applicable)
e. Average daily flow rate
I. Does this outfall have either an intermittent or a periodic discharge?
If yes, provide the following information:
Number f times per year discharge occurs:
Average duration of each discharge:
Average flow per discharge:
Months in which discharge occurs:
g. Is ouffall equipped with a diffuser?
(Longitude)
N/A ft.
N/A ft.
mgd
❑ Yes ® No (go to A.9.g.)
❑ Yes Cl No
mgd
A.10. Description of Receiving Waters.
a. Name of receiving water Cullasaia River
b. Name of watershed (if known)
United States Soil Conservation Service 14-digit watershed code (if known):
C. Name of State ManagementlRiver Basin (if known): Little Tennessee
United States Geological Survey 8-digit hydrologic cataloging unit code (if known):
d. Critical low flow of receiving stream (if applicable)
acute eta chronic eta
e. Total hardness of receiving stream at critical low flow (if applicable): mg/I of CaCO3
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22, Page 5 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
HIGHLANDS WWTP, NCO021407
Renewal
Little Tennessee
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 95-98 %
Design SS removal 95-98 %
Design P removal 95-98 %
Design N removal 95-98 %
Other %
C. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe:
Ultra Violet Lights
If disinfection is by chlorination is dechlorination used for this outfall? ❑ 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 CA/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.
Ouffall number: 001
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
PARAMETER
Value
Units
Value
Units
Number of Samples
pH (Minimum)
6.0
S.U.
pH (Maximum)
7.7
S.U.
Flow Rate
1.324
mgd
0.271
m d
12
Temperature (winter)
13.7
Celsius
8.6
Celsius
4
Temperature (Summer)
24.0
Celsius
21.4
Celsius
4
• For PH please report a minimum and a maximum daily value
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
POLLUTANT
DISCHARGE
ANALYTICAL
MUMDL
Conc.
Units
Cone.
Units
Number of
METHODSamples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
See
BIOCHEMICAL OXYGEN
EBOD5DMR
DEMAND (Report one)Data
FECAL COLIFORM
TOTAL SUSPENDED SOLIDS (TSS)
END OF PART A.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 6 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
HIGHLANDS VVVVTP, NCO021407
Renewal
Little Tennessee
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 8.1 through B.S. All others go to Part C (Certification).
B.I. Inflow and Infiltration. Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration.
1,000 gpd
Briefly explain any steps underway or planned to minimize inflow and infiltration.
Find leaks when cleaning lines
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 Y. 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: Carolina Sewer and Drain Co. (Roy Ewing)
Mailing Address: 71 Woodscape Drive
Mills River NC 28709
Telephone Number: (8281216-8998
Responsibilities of Contractor: Clean lines 2 times a year
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.
N/A
b. Indicate whether the planned improvements or implementation schedule are required by local, State, or Federal agencies.
❑ Yes ® No
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 7 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
HIGHLANDS VWVfP, NCO021407
Renewal
Little Tennessee
C. If the answer to B.5.b is "Yes," briefly describe, including new maximum daily inflow rate (if applicable).
d. Provide dates imposed by any compliance schedule or any actual dates of completion for the implementation steps listed below, as
applicable. For improvements planned independently of local, State, or Federal agencies, indicate planned or actual completion dates, as
applicable. Indicate dates as accurately as possible.
Schedule - Actual Completion
Implementation Stage MM/DD/YYYY MM/DD/YYYY
- Begin Construction
- End Construction
- Begin Discharge / / / /
- Attain Operational Level / /
e. Have appropriate permits/clearances conceming 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
QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a minimum effluent testing data must be
based on at least three pollutant scans and must be no more than four and on -half years old.
Outfall Number: 001
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
DISCHARGE
ANALYTICAL
POLLUTANT
METHOD
MUMDL
Cone.
Units
Conc.
Units
Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA (as N)
0.41
mg/L
0.31
mg/L
2
SM 4500 NH3 D
0.10
CHLORINE (TOTAL
NO
ug/L
ND
ug/L
2 -
SM 4600 G
20
RESIDUAL, TRC)
DISSOLVED OXYGEN
6.0
mg/L
5.6
mg/L
2
SM 4500 G
1.0
TOTAL KJELDAHL
1.76
mg/L
1.3
mg/L
2
EPA 351.2
0.10
NITROGEN (TKN)
NITRATE PLUS NITRITE
0.91
mg/L
0.91
mg/L
2
SM 4500 NH3 H
0.10
NITROGEN
OIL and GREASE
<5.0
mg/L
<5.0
mg/L
2
1664 A
5.0
PHOSPHORUS (Total)
1.5
mg/L
1.4
mg/L
2
EPA 200.7
0.040
TOTAL DISSOLVED SOLIDS
233
mg/L
206.5
mg/L
2
SM 264OC-2011
25
(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

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
HIGHLANDS WWTP, NCO021407
Renewal
Little Tennessee
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: Biomonitodng Data)
❑ Part F (Industrial User Discharges and RCRA/CERCLA Wastes)
❑ Part G (Combined Sewer Systems)
ALL APPLICANTS MUST COMPLETE THE FOLLOWING CERTIFICATION.
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who
manage the system or those persons directly responsible for gathering the information, the information is, to the best of my knowledge and belief, true,
accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment
for knowing violations.
Name and official title Jacob Allen
��,{ /}
Signature 9� e 1 � 1WJ lam(. tA,
Telephone number [phone]
Date signed 2/28/2019
Upon request of the permitting authority, you must submit any other information necessary to assure wastewater treatment practices at the treatment
works or identify appropriate permitting requirements.
SEND COMPLETED FORMS TO:
NCDENR/ DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 9 of 22

FACILITY NAME AND PERMIT NUMBER:
HIGHLANDS VVVVTP, NCO021407
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Little Tennessee
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 fore. 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.
Ouffall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
MLIMD
L
Cone.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
Of
Samples
METALS (TOTAL RECOVERABLE), CYANIDE, PHENOLS, AND HARDNESS.
ANTIMONY
ND
mg/L
2
EPA 200.8
0.005
ARSENIC
ND
mg/L
2
EPA 200.8
0.010
BERYLLIUM
ND
mg/L
2
EPA 200.8
0.001
CADMIUM
ND
mg/L
2
EPA 200.8
0.001
CHROMIUM
ND
mg/L
2
EPA 200.8
0.005
COPPER
0.008
mg/L
0.0075
mg/L
2
EPA 200.8
0.001
LEAD
ND
mg/L
2
EPA 200.8
0.005
MERCURY
<0.5
ng/L
0
ng/L
2
1664A
0.5
NICKEL
ND
mg/L
2
EPA 200.8
0.010
SELENIUM
NO
mg/L
2
EPA 200.8
0.010
SILVER
ND
mg/L
2
EPA 200.8
0.005
THALLIUM
ND
mg/L
2
EPA 200.8
0.001
ZINC
0.106
mg/L
0.0935
mg/L
2
EPA 200.8
0.010
CYANIDE
<0.005
mg/L
0
mg/L
2
SM 4500CNCE-
2011
0.005
TOTAL PHENOLIC
COMPOUNDS
0.008
mg/L
0.004
mg/L
2
EPA 420.1
0.005
HARDNESS (as CaCO3)
26
mg/L
24
mg/L
2
EPA 200.7
1.0
Use this space (or a separate sheet) to provide information on other metals requested by the permit writer -
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550.6 & 7550-22. Page 10 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
HIGHLANDS WWTP, NCO021407
Renewal
Little Tennessee
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
POLLUTANT
ANALYTICAL
ML/MD
ftMAXM
nits
Mass
Units
Conc.
Units
Mass
Unit
Number of
METHOD
L
s
Samples
VOLATILE ORGANIC COMPOUNDS
ACROLEIN
NO
ug/L
2
EPA 624.8260E
5.0
ACRYLONITRILE
NO
ug/L
2
EPA 6243260E
5.0
BENZENE
ND
ug/L
2
EPA 624-8260B
2.0
BROMOFORM
ND
ug/L
2
EPA 624.8260E
2.0
CARBON
TETRACHLORIDE
NO
ug/L
2
EPA 624-8260B
2.0
CHLOROBENZENE
ND
ug/L
2
EPA 6244260B
2.0
CHLORODIBROMO-
ND
ug/L
2
EPA 6243260E
2.0
METHANE
CHLOROETHANE
NO
ug/L
2
EPA 624-8260B
2.0
2-CHLOROETHYLVINYL
NO
ug/L
2
EPA 6243260E
2.0
ETHER
CHLOROFORM
NO
ug/L
2
EPA 6243260E
2.0
HLOROBROMO-
ND
ug/L
2
EPA 624-8260BE
2.0
METHANE
ME
1,1-DICHLOROETHANE
ND
ug/L
2
EPA 6243260E
2.0
1,2-DICHLOROETHANE
ND
ug/L
2
EPA 624.8260B
2.0
TRANS-I,2-DICHLORO-
NO
ug/L
2
EPA 6243260E
2.0
ETHYLENE
1,1-DICHLORO-
ETHYLENE
NO
ug/L
2
EPA 6243260E
2.0
1,2-DICHLOROPROPANE
NO
ug/L
2
EPA 624-8260B
2.0
1,3-DICHLORO-
PROPYLENE
NO
ug/L
2
EPA 6243260E
2.0
ETHYLBENZENE
NO
ug/L
2
EPA 624-8260B
2.0
METHYL BROMIDE
NO
ug/L
2
EPA 624.8260B
2.0
METHYL CHLORIDE
NO
ug/L
2
EPA 624-8260B
2.0
METHYLENE CHLORIDE
ND
ug/L
2
EPA 624-8260B
2.0
1, TETRA-
CHLORLOROETHANE
ND
ug/L
2
EPA 624-8260B
2.0
TETRACHLORO-
ETHYLENE
ND
ug/L
2
EPA 624-8260B
2.0
EPA Form 3510-2A (Rev. 1.99). Replaces EPA forms 7550-6 & 7560-22. Page 11 of 22

TOLUENE ND ug/L I-F2 EPA 624-8260B 2.0
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 12 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
HIGHLANDS WWTP, NCO021407 Renewal Little Tennessee
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE
POLLUTANT Number ANALYTICAL ML/MDL
Conc. Units I Mass I Units Conc. I Units I Mass I Units of METHOD
1,1,1
TRICHLOROE7HANE
ND
ug/L
2
EPA 624.8260E
2.0
1,1,2-
TRICHLOROETHANE
ND
ug/L
2
EPA 624-8260B
2.0
TRICHLOROETHYLENE
ND
ug/L
2
EPA 624-8260B
2.0
VINYL CHLORIDE
ND
uglL
2
EPA 624-8260B
2.0
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
ND
2-CHLOROPHENOL
NO
24-DICHLOROPHENOL
ND
2,4-DIMETHYLPHENOL
ND
4,6-DINITRO-0-CRESOL
ND
2,4-DINITROPHENOL
NO
2-NITROPHENOL
ND
4-NITROPHENOL
ND
PENTACHLOROPHENOL
ND
PHENOL
NO
2,4,6
TRICHLOROPHENOL
ND
Use this space (or a separate sheet) to
BASE -NEUTRAL COMPOUNDS
ACENAPHTHENE
ND
ACENAPHTHYLENE
ND
ANTHRACENE
NO
BENZIDINE
ND
BENZO(A)ANTHRACENE
ND
BENZO(A)PYRENE
ND
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
.vide information on other acid -extractable
the
B'
2
2
2
2
2
2
2
2
2
2
writer
n
EPA 62518270D
EPA 625/8270D
EPA 625/8270D
EPA 625/8270D
EPA 62518270D
EPA 625/8270D
EPA 62518270D
EPA 62518270D
EPA 62518270D
EPA 625/8270D
EPA 62518270D
5.0
5.0
5.0
5.0
5.0
6.0
5.0
5.0
5.0
5.0
5.0
ug/L
2
EPA 625/8270D
5.0
ug/L
2
EPA 625/8270D
5.0
ug/L
2
EPA 62518270D
5.0
uglL
2
EPA 625/8270D
5.0
ug/L
2
EPA 62518270D
5.0
ug/L
2
EPA 625/8270D
5.0
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550.6 8 7550-22. - Page 13 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
HIGHLANDS W1/VfP, NCO021407
Renewal
Little Tennessee
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
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
of
METHOD
Samples
FLUORANTHENE
RANT
NO
ug/L
2
EPA 625/8270D
5.0
BENZO(GHI)PERYLENE
NO
ug/L
2
EPA 62518270D
5.0
BENZO(N)
FLUORANTHENE
ND
ug/L
2
EPA 625/8270D
5.0
BIS (2-CHLOROETHOXY)
METHANE
NO
ug/L
2
EPA 625/8270D
5.0
BIS (2-CHLOROETHYL)-
ETHER
ND
uglL
2
EPA 62518270D
5.0
BIS (2-CHL-
PROPYL)EETHER
THER
NO
ug/L
2
EPA 625/8270D
5.0
BIS (2-ETHYLHEXYL)
PHTHALATE
ND
ug/L
2
EPA 625/8270D
5.0
HE R PHENYL ETHER
PHENYL E
ND
ug/L
2
EPA 625/8270D
6.0
BUTYL
PHTHALATELATE
NO
ug/L
2
EPA 62518270D
5.0
H ORO-
NA
NAPHTHAL
THALENE
NO
ug/L
2
EPA 625/8270D
5.0
PHENYL ETHER
PHENY ETHERL
NO
ug/L
2
EPA 625/8270D
5.0
CHRYSENE
NO
ug/L
2
EPA 62518270D
5.0
DI-N-BUTYL PHTHALATE
ND
ug/L
2
EPA 625/8270D
5.0
DI-N-OCTYL PHTHALATE
ND
ug/L
2
EPA 62518270D
5.0
DIBENZO(A,H)
ANTHRACENE
ND
ug/L
2
EPA 625/82700
5.0
1,2-DICHLOROBENZENE
ND
ug/L
2
EPA 625/8270D
5.0
1,3-DICHLOROBENZENE
NO
ug/L
2
EPA 625/8270D
5.0
1,4-DICHLOROBENZENE
ND
uglL
2
EPA 625/8270D
5.0
3,3-DICHLORO-
BENZIDINE
NO
ug/L
2
EPA 625/8270D
5.0
DIETHYL PHTHALATE
NO
uglL
2
EPA 62518270D
5.0
DIMETHYL PHTHALATE
NO
ug/L
2
EPA 625/8270D
5.0
2,4-DINITROTOLUENE
ND
ug/L
2
EPA 625/8270D
6.0
2,6-DINITROTOLUENE
ND
uglL
2
EPA 625/8270D
5.0
1,2-DIPHENYL-
HYDRAZINE
ND
ug/L
2
EPA 625/8270D
5.0
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550-22.
Page 14 of 22

FACILITY NAME AND PERMIT NUMBER:
HIGHLANDS WWTP, NCO021407
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Little Tennessee
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
MLIMD
L
Cone.
Units
Mass
Units
Cone.
Units
Mass
Units
Number
of
Samples
FLUORANTHENE
ND
ug/L
2
EPA 62518270D
5.0
FLUORENE
ND
uglL
2
EPA 625/8270D
6.0
HEXACHLOROBENZENE
ND
ug/L
2
EPA 625/8270D
5.0
HEXA-
BUTADIENE
DIENE
ND
ug/L
2
EPA 625/8270D
5.0
HEXACHLOROCYCLO-
PENTADIENE
NO
ug/L
2
EPA 625/8270D
5.0
HEXACHLOROETHANE
NO
ug/L
2
EPA 62518270D
6.0
INDENO(1,2,3-CD)
PYRENE
ND
ug/L
2
EPA 625/8270D
5.0
ISOPHORONE
ND
ug/L
2
EPA 625/8270D
5.0
NAPHTHALENE
ND
ug/L
2
EPA 625/8270D
5.0
NITROBENZENE
ND
ug/L
2
EPA 62518270D
5.0
N-NITROSODI-N-
PROPYLAMINE
NO
ug/L
_
2
EPA 625/8270D
5.0
N-NITROSODI-
METHYLAMINE
ND
ug/L
2
EPA 625/8270D
5.0
N-NITROSODI-
PHENYLAMINE
ND
ug/L
2
EPA 625/8270D
5.0
PHENANTHRENE
NO
ug/L
2
EPA 62518270D
5.0
PYRENE
ND
ug/L
2
EPA 625/8270D
5.0
TRIOHLOROBENZENE
RIC
ND
ug/L
2
EPA 625/8270D
6.0
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 5 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Highlands WWTP (NC0021407)
Renewal
LTN01
SUPPLEMENTAL APPLICATION INFORMATION
PART E. TOXICITY TESTING DATA
POT9s meeting one mr more of the following criteria must provide the results of whale effluent toxicity tests for acute or chronic toxicity for each of the facility's discharge points: 1) P,[ Vus with
a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or moss that are required to have one under40 CFR Part403); or 3) POTWs required by the
permitting authority to submit data for mesa parernaters.
• At a minimum, these results must include quarmily testing for a 12-month period within the past 1 year using multiple species (minimum of two species), or the results from four tests
pertonned at least annually in the four and om-halt years prior to the application, provided the results show no appreciable loxicity, and testing for acute and/or chronic toxicity,
depending on the range of receiving water dilution. Do not include information on combined sewer marrows 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 OA/OC requirements of 40 CFR Part 136 and other appropriate 0A/0C
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 -hag years. If a whole effluent toxicity fast conducted during the past four and one.
hag years revealed toxicity, provide any Information on the cause of the toxicity or any results of a hardly reduction evaluation. If one was conducted.
• If you have already submitted any of the infonewon requested in Pad 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, may may be submitted in place of Part E.
If no bionnoniftonng data is required. do not complete Pad 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.
4 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: 1
Test number: 2
Test number. 3
Test number: 4
a. Test information.
Test Species 8 test method number
Pimephales
promelas
Pimephales promelas
Pimephales promelas
Pimephales promelas
EPA 1000.0
EPA 1000.0
EPA 1000.0
EPA 1000.0
Age at initiation of test
< 24-hours old
< 24-hours old
< 24-hours old
< 24-hours old
Outfall number
001
001
001
001
Dates sample collected
March 0540, 2017
June 04-09, 2017
September 10-15, 2017
March 04.09, 2018
Date test started
March 07, 2017
June 06, 2017
September 12, 2017
March 06, 2018
Duration
7-days
7-days
7-days
7-days
b. Give toxicity test methods followed.
Manual title
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to
Freshwater Organisms, EPA-821-R-02-013
Edition number and year of publication
Fourth Edition, October 2002
Page number(s)
1 — 335
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
X
X
X
X
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
X
X
X
X
NPDES FORM 2A Additional Information

FACILITY NAME AND PERMIT NUMBER:
Highlands WWTP (NC0021407)
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
LTN01
Test number: 1
Test number: 2
Test number: 3
Test number: 4
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
Effluent Outfall 001,
after all treatment
processes
Effluent Outfall 001,
after all treatment
processes
Effluent Outfall 001,
after al I treatment
processes
Effluent Ouffall 001,
after all treatment
processes
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
X
X
X
X
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
X
X
X
X
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
4
Soft synthetic water
Soft synthetic water
Soft synthetic water
Soft synthetic water
Receiving water
1
I. Type of dilution water. If salt water, specify "natural" or type of artificial sea salts or brine used.
Fresh water
X
X
X
X
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
0, 6.0, 12, 24, 48, 100% 1
0, 6.0, 12, 24, 48, 100%
0, 6.0, 12, 24, 48, 100%
0, 6.0, 12, 24, 48, 100%
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH
Yes
Yes
Yes
Yes
Salinity
Not applicable.
Not applicable.
Not applicable.
Not applicable.
Temperature
Yes
Yes
Yes
Yes
Ammonia
Not applicable.
Not applicable.
Not applicable.
Not applicable.
Dissolved oxygen
Yes
Yes
Yes
Yes
I. Test Results.
Acute:
Percent survival in
100% effluent
LCw
95% C.I.
Control percent survival
Other (describe)
NPDES FORM 2A Additional Information

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
Highlands WWTP (NC0021407)
Renewal
LTN01
Test number: 1
Test number: 2
Test number: 3
Test number: 4
Chronic:
NOEC
48%
100%
100%
24%
ICm
>100%
>100%
>100%
74.2%
Control percent survival
100%
100%
100%
100%
Other (describe)
ChV = 69.3%
ChV >100%
ChV >100%
ChV = 33.9%
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Yes
Yes
Yes
Yes
Was reference toxicant test wthin
Yes
Yes
Yes
Yes
acceptable bounds?
What date was reference toxicant test
run?
March 07, 2017
June 06, 2017
September 12, 2017
P
March 06, 2018
Other (describe)
E.3. Toxicity Reduction Evaluation. Is the treatment works involved in a Toxicity Reduction Evaluation?
❑ Yes X No If yes, describe:
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)
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
NPDES FORM 2A Additional Information