NC0079561_Renewal (Application)_20220816

(01/*'%51;IN!,QA4.,
ROY COOPER 1 1
Governor t'„i�A1" '
ELIZABETH S.BISER *' °^
'�Q eM eY
Secretary
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
August 16, 2022
Town of Elk Park
Attn: Jonathan D. Boone, Mayor
PO Box 248
Elk Park, NC 28622
Subject: Permit Renewal
Application No. NC0079561
Elk Park WWTP
Avery County
Dear Applicant:
The Water QualityPermittingSection acknowledges the August 16, 2022, receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 150E-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincerel
3;,... fie"ita
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
DE Q North Carolina Department of Environmental Quality I Division of Water Resources
Asheville Regional Office 2090 U.S.Highway 70 Swannanoa.North Carolina 28778
828.2964500

United States Office of Water EPA Form 3510-2A
Environmental Protection Agency Washington,D.C. Revised March 2019
Water Permits Division
:,EPA Application Form 2A
New and Existing Publicly
Owned Treatment Works
NPDES Permitting Program
RECEIVED
AUG 16 2022
NCDEQIDWRINPDES
Note: Complete this form if your facility is a new or existing publicly owned treatment works.

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0079561 Elk Park WWTP OMB No.2040.0004
Form U.S.Environmental Protection Agency
2A &EPA Application for NPDES Permit to Discharge Wastewater
NPDES NEW AND EXISTING PUBLICLY OWNED TREATMENT WORKS
SECTION 1.BASIC APPLICATION INFORMATION FOR ALL APPLICANTS(40 CFR 122.21(j)(1)and(9))
1.1 Facility name
Elk Park WWTP
Mailing address(street or P.O.box)
P.O.Box 248
City or town State ZIP code
Elk Park NC 28622
Contact name(first and last) Title Phone number Email address
Jonathan Daniel Boone Mayor [phone] [e-mail]
Location address(street,route number,or other specific identifier) ❑Same as mailing address
576 Elk River Road
LL
City or town State ZIP code
Elk Park NC 28622
1.2 Is this application for a facility that has yet to commence discharge?
0 Yes 4 See instructions on data submission ❑✓ No
requirements for new dischargers.
1.3 Is applicant different from entity listed under Item 1.1 above?
❑ Yes 0 No 4 SKIP to Item 1.4.
Applicant name
Applicant address(street or P.O.box)
City or town State ZIP code
e
Contact name(first and last) Title Phone number Email address
1.4 Is the applicant the facility's owner,operator,or both?(Check only one response.)
❑ Owner ❑ Operator ❑ Both
1.5 To which entity should the NPDES permitting authority send correspondence? (Check only one response.)
❑ Facility ❑ Applicant 2 Facility and applicant
(they are one and the same)
1.6 Indicate below any existing environmental permits.(Check all that apply and print or type the corresponding permit
number for each.)
Existing Environmental Permits
a.
❑ NPDES(discharges to surface ❑ RCRA(hazardous waste) ❑ UIC(underground injection
water) control)
NC0079561
o ❑ PSD(air emissions) ❑ Nonattainment program(CM) ❑ NESHAPs(CM)
❑ Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section 0 Other(specify)
404)
EPA Form 3510-2A(Revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0079561 Elk Park WWTP OMB No.2040-0004
1.7 Provide the collection system information requested below for the treatment works.
Municipality Population Collection System Type Ownership Status
Served Served (indicate percentage)
Residential, 495 100 %separate sanitary sewer El Own 0Maintain
Z %combined storm and sanitary sewer ❑ Own ❑ Maintain
Commercial
d 0 Unknown ❑ Own ❑ Maintain_
c _ %separate sanitary sewer ❑ Own 0 Maintain
•o
%combined storm and sanitary sewer ❑ Own ❑ Maintain
3 ❑ Unknown 0 Own 0 Maintain
a
o %separate sanitary sewer ❑ Own ❑ Maintain
a.
c %combined storm and sanitary sewer 0 Own ❑ Maintain
E 0 Unknown 0 Own 0 Maintain
a; %separate sanitary sewer 0 Own ❑ Maintain
en %combined storm and sanitary sewer ❑ Own ❑ Maintain
c ❑ Unknown ❑ Own ❑ Maintain
'� Total 495
d Population
ci Served
Separate Sanitary Sewer System Combined Storm and
Sanitary Sewer
Total percentage of each type of too
sewer line(in miles)
Z' 1.8 Is the treatment works located in Indian Country?
c
oo 0 Yes 0 No
0
c 1.9 Does the facility discharge to a receiving water that flows through Indian Country?
c ❑ Yes 0 No
1.10 Provide design and actual flow rates in the designated spaces. Design Flow Rate
0.10 mgd
Ti Annual Average Flow Rates(Actual)
Two Years Ago Last Year This Year
• as
m Co .0605 mgd .0583 mgd .0528 mgd
5 cc
Daily Flow Rates(Actual)
o Two Years Ago Last Year This Year
0.38 mgd 0.206 mgd 0.226 mgd
01.11 Provide the total number of effluent discharge points to waters of the United States by type.
o Total Number of Effluent Discharge Points by Type
d T Combined Sewer Constructed
ea T Treated Effluent Untreated Effluent Overflows Bypasses Emergency
.a Overflows
0 1
EPA Form 3510-2A(Revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
NC0079561 Elk Park WWTP OMB No.2040-0004
Outfalls Other Than to Waters of the United States
1.12 Does the POTW discharge wastewater to basins,ponds,or other surface impoundments that do not have outlets for
discharge to waters of the United States?
❑ Yes ❑✓ No 4 SKIP to Item 1.14.
1.13 Provide the location of each surface impoundment and associated discharge information in the table below.
Surface Impoundment Location and Discharge Data
Average Daily Volume Continuous or Intermittent
Location Discharged to Surface
Impoundment (check one)
❑ Continuous
gpd 0 Intermittent
❑ Continuous
gpd ❑ Intermittent
❑ Continuous
gpd ❑ Intermittent
r 1.14 Is wastewater applied to land?
❑ Yes 0 No 4 SKIP to Item 1.16.
0 1.15 Provide the land application site and discharge data requested below.
y Land Application Site and Discharge Data
Continuous or
0 Location Size Average Daily Volume Intermittent
Applied (check one)
acresgpd 0 Continuous
❑ Intermittent
❑ Continuous
acres gpd ❑ Intermittent
0 Continuous
acres g� 0 Intermittent
Ti 1.16 Is effluent transported to another facility for treatment prior to discharge?
0
❑ Yes ❑✓ No 4 SKIP to Item 1.21.
1.17 Describe the means by which the effluent is transported(e.g.,tank truck,pipe).
1.18 Is the effluent transported by a party other than the applicant?
❑ Yes ❑ No SKIP to Item 1.20.
1.19 Provide information on the transporter below.
Transporter Data
Entity name Mailing address(street or P.O.box)
City or town State ZIP code
Contact name(first and last) Title
Phone number Email address
EPA Form 3510-2A(Revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0079561 Elk Park WWTP OMB No.2040-0004
1.20 In the table below,indicate the name,address,contact information,NPDES number,and average daily flow rate of the
receiving facility.
Receiving Facility Data
Facility name Mailing address(street or P.O.box)
City or town State ZIP code
c.�
y Contact name(first and last) Title
0
Phone number Email address
o NPDES number of receiving facility(if any) 0 None Average dailyflow rate mgd
Q, 9 9
0 1.21 Is the wastewater disposed of in a manner other than those already mentioned in Items 1.14 through 1.21 that do not
d have outlets to waters of the United States(e.g.,underground percolation,underground injection)?
rn
0 Yes ❑ No 4 SKIP to Item 1.23.
0 1.22 Provide information in the table below on these other disposal methods.
Information on Other Disposal Methods
o Disposal Location of Size of Annual Average Continuous or Intermittent
-a Method Daily Discharge
Description Disposal Site Disposal Site Volume (check one)
❑ Continuous
acres gpd 0 Intermittent
0
acres gpd ❑ Continuous
❑ Intermittent
❑ Continuous
acres gpd ❑ Intermittent
1.23 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(n)?(Check all that apply.
H Consult with your NPDES permitting authority to determine what information needs to be submitted and when.)
w ❑ Discharges into marine waters(CWA ❑ Water quality related effluent limitation(CWA Section
CO al Section 301(h)) 302(b)(2))
❑✓ Not applicable
1.24 Are any operational or maintenance aspects(related to wastewater treatment and effluent quality)of the treatment works
the responsibility of a contractor?
0 Yes 0 No 4SKIP to Section 2.
1.25 Provide location and contact information for each contractor in addition to a description of the contractor's operational
and maintenance responsibilities.
Contractor Information
Contractor 1 Contractor 2 Contractor 3
Contractor name
(company name)
Mailing address
Jstreet or P.O.box)
`o City,state,and ZIP
code
cContact name(first and
last)
Phone number
Email address
Operational and
maintenance
responsibilities of
contractor
EPA Form 3510-2A(Revised 3.19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0079561 Elk Park WWTP OMB No.2040-0004
SECTION 2.ADDITIONAL INFORMATION(40 CFR 122.21(j)(1)and(2))
Outfalls to Waters of the United States
= 2.1 Does the treatment works have a design flow greater than or equal to 0.1 mgd?
rn
o ❑ Yes ❑ No 4 SKIP to Section 3.
0 2.2 Provide the treatment works'current average daily volume of inflow Average Daily Volume of Inflow and Infiltration
and infiltration.
CA-4 rlOWr) gpd
Indicate the steps the facility is taking to minimize inflow and infiltration.
3 SireLi +esk, .\(\cO n clecirau4c, tr)5reck and repatc manholes
0
2.3 Have you attached a topographic map to this application that contains all the required information?(See instructions for
R fl specific requirements.)
o =
0 ❑� Yes ❑ No
f0—
E 2.4 Have you attached a process flow diagram or schematic to this application that contains all the required information?
oco (See instructions for specific requirements.)
rn
LL .�
o El Yes ❑ No
2.5 Are improvements to the facility scheduled?
❑ Yes [r No 4 SKIP to Section 3.
= Briefly list and describe the scheduled improvements.
0
1.
2.
E
0 0
3.
m
4.
co
a
2.6 Provide scheduled or actual dates of completion for improvements. _
Scheduled or Actual Dates of Completion for Improvements
Affected Attainment of
o ScheduledOutfalls Begin End Begin Operational
Improvement Construction Construction Discharge
(list outfall
(from above) (MM/DD/YYYY) (MMlDD/YYYY) (MMIDDIYYYY) MM/Level Y
( )
1.
2.
3.
4.
2.7 Have appropriate permitslclearances concerning other federal/state requirements been obtained?Briefly explain your
response.
❑ Yes Li No ❑ None required or applicable
Explanation:
EPA Form 3510-2A(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number T Facility Name Form Approved 03/05/19
NC0079561 Elk Park WWTP OMB No.2040-0004
SECTION 3.INFORMATION ON EFFLUENT DISCHARGES(40 CFR 122.21(j)(3)to(5))
3.1 Provide the following information for each outfall.(Attach additional sheets if you have more than three outfalls.)
Outfall Number 001 Outfall Number Outfall Number
State North Carolina
County Avery
City or town Elk Park
g Distance from shore ft. ft. ft.
n
117 Depth below surface ft. ft. ft.
Average daily flow rate 0.0572 mgd mgd mgd
Latitude 36° 1683' " NE
Longitude -81° 975' "
3.2 Do any of the outfalls described under Item 3.1 have seasonal or periodic discharges?
o ❑ Yes ❑ No 4 SKIP to Item 3.4.
3.3 If so,provide the following information for each applicable outfall.
Outfall Number Outfall Number Outfall Number
Number of times per year
discharge occurs
a Average duration of each
discharge(specify units)
a Average flow of each
discharge mgd mgd mgd
cO
(n Months in which discharge
occurs
3.4 Are any of the outfalls listed under Item 3.1 equipped with a diffuser?
Err'
Yes ❑ No 4 SKIP to Item 3.6.
3.5 Briefly describe the diffuser tt/pe at each applicable outfall.
a
Outfall Number L»1 Outfall Number Outfall Number
d
inC.h perrrac�P
vi 3.6 Does the treatment works discharge or plan to discharge wastewater to waters of the United States from one or more
discharge points?
❑� Yes ❑ No 4SKIP to Section 6.
EPA Form 3510-2A(Revised 3-19) Page 6

f
EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
' NC0079561 Elk Park WWTP OMB No.2040-0004
3.7 Provide the receiving water and related information(if known)for each outfall.
Outfall Number 001 Outfall Number Outfall Number
Receiving water name Little Elk Creek
Name of watershed,river,
`o or stream system
�- U.S.Soil Conservation
N Service 14-digit watershed
o code
Name of state
ij management/river basin Watauga River Basin
U.S.Geological Survey
4; 8-digit hydrologic
re cataloging unit code
Critical low flow(acute) cfs cfs cfs
Critical low flow(chronic) cfs cfs cfs
Total hardness at critical mg/L of mg/L of mg/L of
low flow CaCO3 CaCO3 CaCO3
3.8 Provide the following information describing the treatment provided for discharges from each outfall.
Outfall Number 001 Outfall Number Outfall Number
Highest Level of ❑ Primary 0 Primary ❑ Primary
Treatment(check all that 0 Equivalent to ❑ Equivalent to 0 Equivalent to
apply per outfall) secondary secondary secondary
0 Secondary 0 Secondary 0 Secondary
❑ Advanced ❑ Advanced 0 Advanced
❑ Other(specify) ❑ Other(specify) 0 Other(specify)
c
a -
'a Design Removal Rates by
.0 Outfall
h
d
0 BODs or CBODs 5 5 % %
c
g
15
TSS En
❑Not applicable 0 Not applicable ❑Not applicable
Phosphorus iS5 % % 0/0
❑Not applicable 0 Not applicable 0 Not applicable
Nitrogen 0/° %
�Jr—
0/0
Other(specify) ❑Not applicable ❑Not applicable 0 Not applicable
EPA Form 3510-2A(Revised 3-19) Page 7

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
NC0079561 Elk Park WWTP OMB No.2040-0004
3.9 Describe the type of disinfection used for the effluent from each outfall in the table below.If disinfection varies by
season,describe below.
c
0
U
Outfall Number 001 Outfall Number Outfall Number
0- Disinfection type Chlorination followed by
dechlorination with SO2
• Seasons used All
Dechlorination used? ❑ Not applicable ❑ Not applicable ❑ Not applicable
Yes D Yes ❑ Yes
❑ No ❑ No ❑ No
3.10 Have you completed monitoring for all Table A parameters and attached the results to the application package?
D Yes ❑ No
3.11 Have you conducted any WET tests during the 4.5 years prior to the date of the application on any of the facility's
discharges or on any receiving water near the discharge points?
❑ Yes ❑ No 4 SKIP to Item 3.13.
3.12 Indicate the number of acute and chronic WET tests conducted since the last permit reissuance of the facility's
discharges by outfall number or of the receiving water near the discharge points.
Outfall Number Outfall Number Outfall Number
Acute Chronic Acute Chronic Acute Chronic
Number of tests of discharge
water
Number of tests of receiving
water
3.13 Does the treatment works have a design flow greater than or equal to 0.1 mgd?
❑ Yes ❑ No 4 SKIP to Item 3.16.
c 3.14 Does the POTW use chlorine for disinfection,use chlorine elsewhere in the treatment process,or otherwise have
reasonable potential to discharge chlorine in its effluent?
CD
❑ Yes 4 Complete Table B,including chlorine. ❑ No 4 Complete Table B,omitting chlorine.
3.15 Have you completed monitoring for all applicable Table B pollutants and attached the results to this application
package?
w ❑r Yes ❑ No
3.16 Does one or more of the following conditions apply?
• The facility has a design flow greater than or equal to 1 mgd.
• The POTW has an approved pretreatment program or is required to develop such a program.
• The NPDES permitting authority has informed the POTW that it must sample for the parameters in Table C,must
sample other additional parameters(Table D),or submit the results of WET tests for acute or chronic toxicity for
each of its discharge outfalls(Table E).
Yes 4 Complete Tables C, D,and E as
❑ applicable. ElNo 4 SKIP to Section 4.
3.17 Have you completed monitoring for all applicable Table C pollutants and attached the results to this application
package?
❑ Yes ❑ No
3.18 Have you completed monitoring for all applicable Table D pollutants required by your NPDES permitting authority and
attached the results to this application package?
❑ Yes ❑ No additional sampling required by NPDES
permitting authority.
EPA Form 3510-2A(Revised 3-19) Page 8

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
NC0079561 Elk Park WWTP OMB No.2040-0004
3.19 Has the POTW conducted either(1)minimum of four quarterly WET tests for one year preceding this permit application
or(2)at least four annual WET tests in the past 4.5 years?
No 4 Complete tests and Table E and SKIP to
❑ Yes ❑ Item 3.26.
3.20 Have you previously submitted the results of the above tests to your NPDES permitting authority?
No.4 Provide results in Table E and SKIP to
❑ Yes ❑ Item 3.26.
3.21 Indicate the dates the data were submitted to your NPDES permitting authority and provide a summary of the results.
Date(s)Submitted Summary of Results
(MMIDDNYYY)
v
ar
co
C
3.22 Regardless of how you provided your WET testing data to the NPDES permitting authority,did any of the tests result in
toxicity?
❑ Yes ❑ No 4 SKIP to Item 3.26.
• 3.23 Describe the cause(s)of the toxicity:
a,
d
w
3.24 Has the treatment works conducted a toxicity reduction evaluation?
❑ Yes D No 4 SKIP to Item 3.26.
3.25 Provide details of any toxicity reduction evaluations conducted.
3.26 Have you completed Table E for all applicable outfalls and attached the results to the application package?
Not applicable because previously submitted
ElYes ❑ information to the NPDES .ermittin.authori .
SECTION 4.INDUSTRIAL DISCHARGES AND HAZARDOUS WASTES(40 CFR 122.21(j)(6)and(7))
4.1 Does the POTW receive discharges from SIUs or NSCIUs?
❑ Yes ❑r No 4 SKIP to Item 4.7.
413 4.2 Indicate the number of Sills and NSCIUs that discharge to the POTW.
Number of Sills Number of NSCIUs
co
O
v 4.3 Does the POTW have an approved pretreatment program?
ns
_ ❑ Yes ❑ No
W, 4.4 Have you submitted either of the following to the NPDES permitting authority that contains information substantially
identical to that required in Table F:(1)a pretreatment program annual report submitted within one year of the
tts
application or(2)a pretreatment program?
H ❑ Yes ❑ No 4 SKIP to Item 4.6.
R 4.5 Identify the title and date of the annual report or pretreatment program referenced in Item 4.4.SKIP to Item 4.7.
N
• 4.6 Have you completed and attached Table F to this application package?
O Yes ❑ No
EPA Form 3510-2A(Revised 3-19) Page 9

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0079561 Elk Park WWTP OMB No.2040-0004
4.7 Does the POTW receive,or has it been notified that it will receive,by truck,rail,or dedicated pipe,any wastes that are
regulated as RCRA hazardous wastes pursuant to 40 CFR 261?
❑ Yes ❑ No 4 SKIP to Item 4.9.
4.8 If yes,provide the following information:
Annual
Hazardous Waste Waste Transport Method Amount of Units
Number (check all that apply) Waste
Received
❑ Truck ❑ Rail
❑ Dedicated pipe ❑ Other(specify)
0
❑ Truck El Rail
rit
❑ Dedicated pipe 0 Other(specify)
v
N ❑ Truck ❑ Rail
_ ❑ Dedicated pipe 0 Other(specify)
O
Af 4.9 Does the POTW receive,or has it been notified that it will receive,wastewaters that originate from remedial activities,
including those undertaken pursuant to CERCLA and Sections 3004(7)or 3008(h)of RCRA?
o- ❑ Yes No 4 SKIP to Section 5.
A 4.10 Does the POTW receive(or expect to receive)less than 15 kilograms per month of non-acute hazardous wastes as
- specified in 40 CFR 261.30(d)and 261.33(e)?
❑ Yes 4 SKIP to Section 5. ❑ No
4.11 Have you reported the following information in an attachment to this application:identification and description of the
site(s)or facility(ies)at which the wastewater originates;the identities of the wastewater's hazardous constituents;and
the extent of treatment,if any,the wastewater receives or will receive before entering the POTW?
❑ Yes ❑ No
SECTION 5.COMBINED SEWER OVERFLOWS(40 CFR 122.21(j)(8))
5.1 Does the treatment works have a combined sewer system?
co
❑ Yes 0 No 4 SKIP to Section 6.
co
i5 5.2 Haveyou attached a CSO system mapto this application? instructions for maprequirements.)
-o Y PP (See q )
❑ Yes ❑ No
CO
O 5.3 Have you attached a CSO system diagram to this application?(See instructions for diagram requirements.)
c`�'i ❑ Yes ❑ No
EPA Form 3510-2A(Revised 3-19) Page 10

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0079561 Elk Park WWTP OMB No.2040-0004
5.4 For each CSO outfall,provide the following information.(Attach additional sheets as necessary.)
CSO Outfall Number CSO Outfall Number CSO Outfall Number
City or town
0
State and ZIP code
U
o County
co
S' Latitude "'
0
0 0
co Longitude "
o
Distance from shore ft. ft. ft.
Depth below surface ft. ft. ft.
5.5 Did the POTW monitor any of the following items in the past year for its CSO outfalls?
CSO Outfall Number CSO Outfall Number CSO Outfall Number
Rainfall ❑Yes 0 No 0 Yes 0 No ❑Yes ❑ No
rn
C
0 CSO flow volume ❑ Yes ❑ No 0 Yes Cl No ❑ Yes ❑ No
CSO pollutant ❑ Yes ❑ No ❑ Yes ❑ No El Yes ❑No
o concentrations
0 Receiving water quality ❑ Yes ❑ No ❑ Yes ❑No ❑ Yes ❑No
CSO frequency ❑ Yes ❑ No ❑ Yes El No ❑ Yes ❑ No
Number of storm events ❑ Yes ❑No ❑ Yes ❑No ❑ Yes ❑No
5.6 Provide the following information for each of your CSO outfalls.
CSO Outfall Number CSO Outfall Number CSO Outfall Number
03
Number of CSO events in events events events
11 the past year
co
a
c Average duration per hours hours hours
c event ❑Actual or 0 Estimated 0 Actual or 0 Estimated 0 Actual or 0 Estimated
d
w' million gallons million gallons million gallons
o Average volume per event
`"
ci ❑Actual or 0 Estimated 0 Actual or 0 Estimated 0 Actual or❑Estimated
Minimum rainfall causing inches of rainfall inches of rainfall inches of rainfall
a CSO event in last year 0 Actual or 0 Estimated 0 Actual or 0 Estimated 0 Actual or 0 Estimated
EPA Form 3510-2A(Revised 3-19) Page 11

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
NC0079561 Elk Park WWTP OMB No.2040-0004
5.7 Provide the information in the table below for each of your CSO outfalls.
CSO Outfall Number CSO Outfall Number CSO Outfall Number
Receiving water name
Name of watershed/
CI) stream system
U.S.Soil Conservation 0 Unknown ❑Unknown 0 Unknown
Service 14-digit
watershed code
(if known)
Name of state
management/river basin
U.S.Geological Survey 0 Unknown 0 Unknown 0 Unknown
8-Digit Hydrologic Unit
Code(if known)
Description of known
water quality impacts on
receiving stream by CSO
(see instructions for
exams les
SECTION 6.CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and(d))
6.1 In Column 1 below,mark the sections of Form 2A that you have completed and are submitting with your application. For
each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note that not
all applicants are required to provide attachments.
Column 1 Column 2
Section 1:Basic Application
Information for All Applicants ❑ w/variance request(s) ❑ w/additional attachments
❑ Section 2:Additional w/topographic map Ei w/process flow diagram
Information ❑ w/additional attachments
0 w/Table A ❑ w/Table D
a Section 3:Information on ❑ wl Table B ❑ wl Table E
Effluent Discharges
C ❑ w/Table C ❑ w/additional attachments
Section 4: Industrial ❑ w/SIU and NSCIU attachments El w/Table F
E Discharges and Hazardous
❑Wastes
w/additional attachments
Section 5:Combined Sewer ❑ w/CSO map ❑ w/additional attachments
to
1-2 Overflows ❑ wl CSO system diagram
Section 6:Checklist and
Certification Statement ❑ wl attachments
w
Y 6.2 Certification Statement
U
G7
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 submitted is, to the best of my knowledge and belief, true,accurate,and
complete. I am aware that there are significant penalties for submitting false information,including the possibility of fine
and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Jonathan Daniel Boone Mayor
Signature Date signed
°&/1/ /2022
EPA Form 3510-2A(Revised 3-19) Page 12

1
EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0079561 Elk Park WWTP 001 0MB No.2040-0004
TABLE A. EFFLUENT PARAMETERS FOR ALL POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant Number of Methods (include
Value Units Value Units Sam•les units)
Biochemical oxygen demand ML
o BOD5 or o CBOD5 21.7 mg/L 8.31 mg/L 156 SM-5210B 2.0 mg/L 2 MDL
resort one
Fecal coliform 128.0 cfu/100mL 2.485 cfu/100mL 156 SM-9222D 1.0 cfu O MDL
Design flow rate 0.38 MGD 0.0572 MGD Continuous
pH(minimum) 6.6 s/u
pH(maximum) 7.6 s/u
Temperature(winter) 15.0 Degrees Celsius 10.52 Degrees Celsius 300
Temperature(summer) 23.3 Degrees Celsius 18.85 Degrees Celsius 420
El ML
Total suspended solids(TSS) 33 I mg/L 1.04 mg/L 156 SM-2540D 2.5 mg/L 2 MDL
I Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2A(Revised 3-19) Page 13

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0079561 Elk Park WWTP 001 OMBNo.2040-0004
TABLE B.EFFLUENT PARAMETERS FOR ALL POTWS WITH A FLOW EQUAL TO OR GREATER THAN 0.1 MGD
Maximum Daily Discharge Average Daily Discharge
Analytical ML or MDL
Pollutant Number of Value Units Value Units Method' (include units)
0 ML
)
Ammonia(as N) 10.8 mg/L 0.2735 mg/L 156 SM-4500F 0.1 mg/L 2 MDL
Chlorine ❑ML
(total residual,TRC)2 26.0 ug/L 0.6 ug/L 312 SM-4500 CLG 15.0 ug/L 2 MDL
ML
Dissolved oxygen 8.0 mg/L 4.436 mg/L 312 Field Sample 0.1 mg/L 2 MDL
0 ML
Nitrate/nitrite 4.39 mg/L 4.126 mg/L 5 SM19-4500N 0.08 mg/L 2 MDL
L
Kjeldahl nitrogen 11.4 mg/L 8.86 mg/L 5 EPA 359.2 0.52 mg/L 2 MDL
0 ML
Oil and grease N/A N/A N/A N/A N/A N/A N/A ❑MDL
EPAL
Phosphorus 2.97 mg/L 2.238 mg/L 5 EPA 365.1 0.05 mg/L 2 MDL
0 ML
Total dissolved solids N/A N/A N/A N/A N/A N/A N/A ❑MDL
1 Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
2 Facilities that do not use chlorine for disinfection,do not use chlorine elsewhere in the treatment process,and have no reasonable potential to discharge chlorine in their effluent are not
required to report data for chlorine.
EPA Form 3510-2A(Revised 3-19) Page 15

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05119
NC0079561 Elk Park WWTP 001 OMB No.2040-0004
TABLE D.ADDITIONAL POLLUTANTS AS REQUIRED BY NPDES PERMITTING AUTHORITY
Maximum Daily Discharge Average Daily Discha e
Pollutant �j Analytical ML or MDL
(list) Value Units Value Units Number of Method' (include units)
Samples
El No additional sampling is required by NPDES permitting authority.
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
0 MDL
❑ML
❑MDL
❑ML
0 MDL
0 ML
0 MDL
❑ML
❑MDL
'Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required
under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2A(Revised 3-19) Page 23

1
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Town of Elk Park - Elk Park WWTP N * .--,,,-,A
NPDES Permit NC0079561
576 Elk River Road, Elk Park 28622A 1 5000000
Receiving Stream: Little Elk Creek Stream Class: C;Tr
Stream Segment: 8-22-17 Sub-Basin#:04-02-01 36.1683°N, -81.975°W
River Basin: Watauga HUC: 060101030201 SCALE NC Grid: C11NW
County:Avery 1.24,000 USGS Quad: Elk Park,NC

GENERATOR
INFLUENT
Bar Secondary CLARIFIER
Screen• Bar Screen DIGESTER Extended
A AA
Aeration
CONTACT
CHAMBER
omammon
BLEACH
Caustic
50% CLARIFIER �`
CAPTOR
❑ BLOWER
❑ BLOWER