NC0026557_Renewal (Application)_20230213

ROY COOPER : f 2
Governor
ELIZABETH S.BISER •� °"�•
�QIIAM H� t`5
Secretary r�
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
February 13, 2023
Town of Bryson City
Attn: Regina Mathis, Town Manager
Po Box 726
Bryson City, NC 28713-0726
Subject: Permit Renewal
Application No. NC0026557
Bryson City WWTP
Swain County
Dear Applicant:
The Water Quality Permitting Section acknowledges the February 13, 2023, receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 150B-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincer ,
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
cc: Keith Webb-McGill
ec: WQPS Laserfiche File w/application
=�y North Carolina Department of Environmentwaal Q70ualityS Iwannano Divisiona.N of WaterorthCarol Resourcina
Asheville Regional Office 12090 U.S.Highy I 287es
78
N D 828.296.4500

mcgill (:.l,it.i. �,:F�� Mcv2thc,_
January 31, 2023
Division of Water Resources RECEIVED
Water Quality Permitting Section — NPDES
1617 Mail Service Center FEB 0 3 2023
Raleigh, North Carolina 27699-1617
RE: NPDES Application Form 2A Package NCPWS
Wastewater Treatment Plant Improvements
Town of Bryson City, North Carolina
Dear Sir or Madam:
On behalf of the Town of Bryson City, please find enclosed for your review and approval the
following items related to the above referenced project:
• One original and two (2) hard copies and one electronic copy of the following:
o Form 2A and associated appendices
o Engineering Alternatives Analysis for WWTP Improvements Project
o Check in the amount of $1,030 for the application fee
The permit application includes the 0.6 MGD WWTP information and the proposed 1.2 MGD
improvements.
If you have any questions during your review or require further information regarding this
project, please do not hesitate to give me a call at 828-252-0575.
Sincerely,
McGILL ASSOCIATES, P.A.
•
Keith We b, P.E.
Vice President
Enclosures
Cc: Regina Mathis, Town Manager, Town of Bryson City
MJ Chen, PE, PhD, McGill Associates
MCGILL ASSOCIATES 1240 19th STREET LANE NW,HICKORY,NC 28601/828.328.2024/MCGILLASSOCIATES.COM

I1 73
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EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City WWTP OMB No.2040-0004
Form U.S.Environmental Protection Agency
2A Application for NPDES Permit to Discharge Wastewater
EPA
NPDES NEW AND EXISTING PUBLICLY OWNED TREATM: - • S
SECTION 1. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS(40 CFR 122.21(j)(1)and(9))
1.1 Facility name FEB 1 3 2023
Bryson City WWTP
Mailing address(street or P.O.box)
315 Riverview Road(NCSR 1151) NCDEQ/DWR/NPDES
City or town State ZIP code
Bryson City NC 28713
Contact name(first and last) Title Phone number Email address
Regina Mathis Town Manager [phone] [e-mail]
Location address(street,route number,or other specific identifier) ❑ Same as mailing address
m 45 Everett Street
w
City or town State ZIP code
Bryson City NC 28713
1.2 Is this application for a facility that has yet to commence discharge?
❑ 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 ❑✓ No 4 SKIP to Item 1.4.
Applicant name
Applicant address(street or P.O. box)
0
City or town State ZIP code
Contact name(first and last) Title Phone number Email address
a
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.)
El Facility El Applicant
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
n ❑ (discharges ❑ (hazardouswaste) ❑ (underground injection
dischar es to surface RCRA UIC under round
water) control)
NC0026557
o ❑ PSD(air emissions) ❑ Nonattainment program(CM) ❑ NESHAPs(CM)
.3:
rn
N ❑ Ocean dumping(MPRSA) ElDredge or fill(CWA Section ❑✓ Other(specify)
404)
WQCS0o17o
EPA Form 3510-2A(Revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City WTP OMB No.2040-0004
W
1.7 Provide the collection system information requested below for the treatment works.
Municipality Population Collection System Type Ownership Status
Served Served (indicate percentage)
100 %separate sanitary sewer 0 Own ❑ Maintain
Bryson City 1 557 %/o combined storm and sanitary sewer 0 Own 0 Maintain
0 0 Unknown 0 Own 0 Maintain
o %separate sanitary sewer 0 Own 0 Maintain
.� %combined storm and sanitary sewer 0 Own 0 Maintain
a 0 Unknown 0 Own 0 Maintain
a %separate sanitary sewer 0 Own 0 Maintain
combined storm and sanitary sewer 0 Own 0 Maintain
E 0 Unknown 0 Own 0 Maintain
0 %separate sanitary sewer 0 Own 0 Maintain
in %combined storm and sanitary sewer 0 Own 0 Maintain
c 0 Unknown 0 Own 0 Maintain
g Total
d Population 1,557
ci Served
Separate Sanitary Sewer System Combined Storm and
Sanitary Sewer
Total percentage of each type of °
sewer line(in miles) 100 /0 /°
?' 1.8 Is the treatment works located in Indian Country?
oo ❑ Yes 0 No
U
c 1.9 Does the facility discharge to a receiving water that flows through Indian Country?
a 0 Yes ❑✓ No
1.10 Provide design and actual flow rates in the designated spaces. Design Flow Rate
1.2 mgd
3
H Annual Average Flow Rates(Actual)
a Two Years Ago Last Year This Year
C
IV
c 0.624 mgd 0.501 mgd 0.402 mgd
) " Maximum Daily Flow Rates(Actual)
Two Years Ago Last Year This Year
1.45 mgd 1.26 mgd 1.087 mgd
w 1.11 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
a a Constructed
CD Ss
a' Treated Effluent Untreated Effluent Combined Sewer Bypasses Emergency
t Overflows
_ Overflows
N_
i3 1
1_ _____.__ —_.__ _
EPA Form 3510-2A(Revised 3-19) Face 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City WTP OMB No.2040-0004
W
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 ❑ Intermittent
❑ Continuous
gpd ❑ Intermittent
❑ Continuous
gpd ❑ Intermittent
2 1.14 Is wastewater applied to land?
❑ Yes ❑✓ No 4 SKIP to Item 1.16.
0 1.15 Provide the land application site and discharge data requested below.
N Land Application Site and Discharge Data
Continuous or
Location Size Average Daily Volume Intermittent
E Applied (check one)
L 0 Continuous
y acres gpd ❑ Intermittent
0
0 Continuous
acres gpd 0 Intermittent
0
acres d ❑ Continuous
gp 0 Intermittent
1.16 Is effluent transported to another facility for treatment prior to discharge?
o ❑ Yes m No 3 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 4 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
110009719572 NC0026557 Bryson City 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
0
Contact name(first and last) Title
0
d Phone number Email address
o NPDES number of receiving facility(if any) 0 None Average dailyflow rate mgd
0, g 9
t/!
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
dhave outlets to waters of the United States(e.g., underground percolation,underground injection)?
❑ 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
Method Disposal Site Disposal Site Daily Discharge (check one)
Description Volume
acres gpd El
0 Intermittent
0 Continuous
acres gpd ❑ Intermittent
acresgpd ❑ Continuous
0 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.
G., w Consult with your NPDES permitting authority to determine what information needs to be submitted and when.)
C ❑ Discharges into marine waters(CWA ❑ Water quality related effluent limitation(CWA Section
Section 301(h)) 302(b)(2))
✓❑ Not applicable
1.24 Are any operational or maintenance aspects(related to wastewater treatmentand effluent quali
ty) the treatment works
the responsibility of a contractor?
❑ Yes ❑ No SKIP 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
0
Contractor name
(company name)
o Mailing address
(street or P.O. box)
o City,state,and ZIP
code
0 Contact 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
110009719572 NC0026557 Bryson City WWTP OMB No.2040-0004
SECTION 2.ADDITIONAL INFORMATION(40 CFR 122.21(j)(1)and (2))
c Outfalls to Waters of the United States
c 2.1 Does the treatment works have a design flow greater than or equal to 0.1 mgd?
rn
n ✓❑ Yes ❑ No 4 SKIP to Section 3.
c 2.2 Provide the treatment works'current average daily volume of inflow Average Daily Volume of Inflow and Infiltration
and infiltration.
245,000 gpd
Indicate the steps the facility is taking to minimize inflow and infiltration.
cca A large scale rehabilitation project is underway to reduce I/I in the sewer system.Regular I/I monitoring
3
0
w
c
2.3 Have you attached a topographic map to this application that contains all the required information?(See instructions for
m C specific requirements.)
2
o
0
❑✓ Yes ❑ No
E 2.4 Have you attached a process flow diagram or schematic to this application that contains all the required information?
o 2 (See instructions for specific requirements.)
rn
cu
o ❑✓ Yes ❑ No
2.5 Are improvements to the facility scheduled?
❑✓ Yes ❑ No 4 SKIP to Section 3.
Briefly list and describe the scheduled improvements.
0
1. See attached.
E
a,
a 2.
E
o
3.
d
V
d
co
4.
co 2.6 Provide scheduled or actual dates of completion for improvements.
Scheduled or Actual Dates of Completion for Improvements
Affected Attainment of
Scheduled Begin End Begin
Outfalls Operational
2 Improvement Construction Construction Discharge
(from above) (list outfall (MM/DD/YYYY) (MM/DD/YYYY) (MM/DD/YYYY) Level
number) (MM/DD/YYYY)
1. 001 08/01/2024 08/01/2026 08/02/2026 10/01/2026
73
•
2
N
3.
4.
2.7 Have appropriate permits/clearances concerning other federal/state requirements been obtained?Briefly explain your
response.
❑ Yes ❑✓ No ❑ None required or applicable
Explanation:
See attached.
EPA Form 3510-2A(Revised 3-19) Page 5

I
PLAN
2000 0 1000 2000 4000
GRAPHIC SCALE DIVISION VALUE = 2000 FEET
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k i River z ReceivingStream: Tuc ase ee
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Basin: Little Tennessee River
Drainage
W g USGS The National Mop: National Boundaries
o Stream Class: B Dataset, 3DEP Elevation Program, Geographic
9
R Latitude: 35' 25' 27" Names Information System, National Hydrography
Longitude: —83' 27' 35" Dataset, National Land Cover Database, National
Sub—Basin: 04-04-02 Structures Dataset, and National Transportation
HUC#: 060102030405 Dataset; USGS Global Ecosystems; U.S. Census I
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DATE WASTEWATER TREATMENT PLANT
s JANUARY2023 EXPANSION FIGURE
nFi 1240 19th Street Lane NW PROJECT u WRRF VICINITY
mcgi�� Hickory.NC28601 22.00354 TOWN OF BRYSON CITY
8Y8.328.20Y4 TOPOGRAPHIC MAP
N
NCF32�lassocafesocom PROJECT MANAGER
MJ CHEN SWAIN COUNTY, NORTH CAROLINA
a
1

PLAN
2000 0 1000 2000 4000
GRAPHIC SCALE DIVISION VALUE = 2000 FEET
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DISINFECTION
001
SLUDGE
SCREENING PROCESSING
O •
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il TOWN OF BRYSON CITY WWTP
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z Receiving Stream: Tuckaseigee River
Drainage Basin: Little Tennessee River USGS The National Mop: National Boundaries
&• Stream Class: B Dataset, 3DEP Elevation Program, Geographic
&` Latitude: 35' 25' 27" Names Information System, Notional Hydrography
Longitude: -83' 27' 35" Dataset, National Land Cover Database, National
Sub-Basin: 04-04-02 Structures Dataset, and National Transportation
z HUC#: 060102030405 Dataset; USGS Global Ecosystems; U.S. Census
U
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DATE WASTEWATER TREATMENT PLANT FIGURE
JANUARY 2023 EXPANSION
n 1240 19th street Lane NW pRaJECT# WWTP
Hickory,NC28601 WWTP22 00354 TOWN OF BRYSON CITY TOPOGRAPHIC MAP 2
7 328
^' mcgiII NC Firm
NC Firm Licenset/C-0469 PROJECT MANAGER
ry mcgillassociates.corn MJ CHEN SWAIN COUNTY, NORTH CAROLINA
a

1 INFLUENT
WASTEWATER
1.2 MGD
INFLUENT
SPIRAL BAR •—SCREENINGS
SCREEN '
[2]
"1.2 MGD
VORTEX GRIT
REMOVAL GRIT
SYSTEM
,
1.2 MOD
FILTRATE INFLUENT
PUMP
W STATION
TUCKASEIGEE
RIVER
LANDFILL
1.2 M00 1.16 MGO
SLUDGE
PRESS RE—AERATION
o BASIN
a
o '1.16 MOD
0
> DECHLOR
!NATION - ---1
a —a.OXIDATION DITCH BASIN
s
tile M00
orq $ CHLORINE SODIUM
/z CONTACT
HOLDING
[2] m BASIN NYPOCHLORITE
A
0
a 36 MOO
0
0 1.18 MGD
1 i
g
o RASJWAS
o
o PUMP CLARIFIER [2]
O STATION
S.'
7 1.2 MOD
Li, [NUMBER OF UNITS TOTAL]
x
2
COSZ
S
a
2
0
-
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w
w
0
tt
a
a
2
0
z
Co
DATE WASTEWATER TREATMENT PLANT FIGURE
m JANUARY 2023 EXPANSION
SS Broad Street PROJECT# PROCESS FLOW
MC ���ii Pall nshev#e N°2�, 22.00354 TOWN OF BRYSON CITY DIAGRAM(1.2 MGD) 3
828.252A575
NCFIroL,cense#C.04 PROJECT MANAGER
mcgnlassocla�es.con' MJ CHEN SWAIN COUNTY. NORTH CAROLINA
a

2.5.1— Bryson City WWTP Improvements— 1.2 MGD Expansion. The project includes:
• Replacement and relocation of influent screening.
• Upgrade and rerouting of existing influent pumping station, to be sized for PHF of 4.4 MGD.
• Addition of a vortex grit removal system.
• Replacement of the existing package treatment plants process with a new oxidation ditch
process with 15 ft SWD.
• Addition of two secondary clarifiers.
• Add a new RAS/WAS pumping station.
• Construct a new chlorine basin to provide the required contact time of 15 minutes at PHF of 4.4
MGD.
• Convert existing treatment basins 1 and 2 to sludge holding/aerobic digester tanks.
• Perform related site work and install major piping required for new equipment.
• Install Electrical/Instrumentation and Control equipment
• Install a standby generator.
2.7— Permits will be applied for during the design of the plant.
• Authorization to Construct for the WWTP
• NPDES Permit Modification
• TVA Permit
• Erosion Control Permit
• NCGO1 Construction Stormwater
• Floodplain Development Permit from the Town of Bryson City
• Stormwater Permit

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City WTP OMB No.2040-0004
W
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
59 County Swain
O City or town Bryson City
"6
c
o Distance from shore N/A ft. ft. ft.
a
Depth below surface N/A ft. ft. ft.
Average daily flow rate 0.6 mgd mgd mgd
Latitude 35° 25' 20" N '
Longitude 83° 27' 42" W "
3.2 Do any of the outfalls described under Item 3.1 have seasonal or periodic discharges?
❑ Yes El No 4 SKIP to Item 3.4,
-57
3.3 If so, provide the following information for each applicable outfall.
Outfall Number Outfall Number Outfall Number
Number of times per year
0 discharge occurs
a Average duration of each
discharge(specify units)
Average flow of each
discharge mgd mgd mgd
Months in which discharge
occurs
3.4 Are any of the outfalls listed under Item 3.1 equipped with a diffuser?
❑ Yes ❑✓ No 4 SKIP to Item 3.6.
3.5 Briefly describe the diffuser type at each applicable outfall.
C-
,'—' Outfall Number Outfall Number Outfall Number
d
N
0
is 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?
1:1 Yes ❑ No +SKIP to Section 6.
EPA Form 3510-2A(Revised 3-19) Page 6

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City WWTP OMB No.2040-0004
3.7 Provide the receiving water and related information(if known)for each outfall.
Outfall Number ow Outfall Number Outfall Number
Receiving water name Tuckaseigee River
Name of watershed,river,
0 or stream system Tuckaseigee River
U.S. Soil Conservation
Service 14-digit watershed
code
cu Name of state
management/river basin Little Tennessee
• U.S.Geological Survey
8-digit hydrologic
cataloging unit code
Critical low flow(acute) cfs cfs cfs
Critical low flow(chronic) cfs cfs cfs
Total hardness at critical mg/L/L of mg/L of /L of
9 9 9
low flow N/A CaCO3 CaCO3 CaCO3
3.8 Provide the following information describing the treatment provided for discharges from each outfall.
Outfall Number 00i Outfall Number Outfall Number
Highest Level of 0 Primary ❑ Primary ❑ Primary
Treatment(check all that 0 Equivalent to 0 Equivalent to 0 Equivalent to
apply per outfall) secondary secondary secondary
O Secondary 0 Secondary 0 Secondary
❑ Advanced 0 Advanced 0 Advanced
❑ Other(specify) 0 Other(specify) 0 Other(specify)
0
a Design Removal Rates by
Outfall
N
BOD5 or CBOD5 85
m
E:
TSS 85 %
0 Not applicable 0 Not applicable 0 Not applicable
Phosphorus
l Not applicable 0 Not applicable 0 Not applicable
Nitrogen
ok
Other(specify) 0 Not applicable 0 Not applicable 0 Not applicable
EPA Form 3510-2A(Revised 3-19) Page 7

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City WTP OMB No.2040-0004
W
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.
-0
d
G
0
U
Outfall Number 001 Outfall Number Outfall Number
0
Disinfection type
Chlorination
w
ai
III Q
Seasons used
All
Dechlorination used? 0 Not applicable 0 Not applicable 0 Not applicable
❑✓ Yes 0 Yes 0 Yes
O No 0 No ❑ No
3.10 Have you completed monitoring for all Table A parameters and attached the results to the application package?
✓❑ Yes 0 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 IZI 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 00i 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 0 No 4 SKIP to Item 3.16.
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?
d ✓❑ 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?
❑✓ Yes 0 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 ❑ No SKIP to Section 4.
applicable.
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

3.16—3.20—Tables C, D, & E
The WWTP currently discharges at a rate less than 1 MGD. The data requested in Tables C, D, and E has
not been a requirement to date because of this and is not available. The proposed expansion to the
plant will result in a discharge of greater than 1 MGD, which will result in new monitoring requirements.

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City 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?
❑ Yes ❑ No 4 Complete tests and Table E and SKIP to
Item 3.26.
3.20 Have you previously submitted the results of the above tests to your NPDES permitting authority?
❑ Yes 0No 4 Provide results in Table E and SKIP to
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
(MM DD/YYYY)
w
a>
c
0
Y3.22 Regardless of how you provided your WET testing data to the NPDES permitting authority,did any of the tests result in
o toxicity?
❑ Yes ❑ No 4 SKIP to Item 3.26,
3.23 Describe the cause(s)of the toxicity:
c
w
3.24 Has the treatment works conducted a toxicity reduction evaluation?
❑ Yes ❑ 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?
El Yes ✓❑ Not applicable because previously submitted
information to the NPDES •ermittin• authorit .
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 ❑✓ No 4 SKIP to Item 4.7.
w 4.2 Indicate the number of Sills and NSCIUs that discharge to the POTW.
co Number of SIUs Number of NSCIUs
N
O
R 4.3 Does the POTW have an approved pretreatment program?
_ ❑ Yes ❑ No
a
4.4 Have you submitted either of the following to the NPDES permitting authority that contains information substantially
d identical to that required in Table F: (1)a pretreatment program annual report submitted within one year of the
application or(2)a pretreatment program?
❑ Yes ❑ No .4 SKIP to Item 4.6.
0
To 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
c 4.6 Have you completed and attached Table F to this application package?
❑ Yes ❑ No
EPA Form 3510-2A(Revised 3-19) Page 9

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City 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 ElNo 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 ❑ Rail
❑ Dedicated pipe ❑ Other(specify)
O
12
N ❑ Truck ❑ Rail
_ ❑ Dedicated pipe ❑ Other(specify)
a
ra 4.9 Does the POTW receive,or has it been notified that it will receive,wastewaters that originate from remedial activities,
H including those undertaken pursuant to CERCLA and Sections 3004(7)or 3008(h)of RCRA?
0
0 Yes ❑✓ No 4 SKIP to Section 5.
5 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?
;51 ❑ Yes ❑� No +SKIP to Section 6.
a 5.2 Have you attached a CSO system map to this application?(See instructions for map requirements.)
❑ Yes ❑ No
5.3 Have you attached a CSO system diagram to this application?(See instructions for diagram requirements.)
`n ❑ Yes El No
U
EPA Form 3510-2A(Revised 3-19) Page 10

f
EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City WTP OMB No.2040-0004
W
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
w
•'- State and ZIP code
0
0
o County
R
o Latitude "
o
co Longitude °
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 0 Yes El No ❑ Yes El No ❑ Yes 0 No
0)
C
•`o CSO flow volume ElYes 0 No ElYes 0 No 0 Yes 0 No
o CSO pollutant
0
concentrations 0 Yes 0 No El Yes El No El Yes 0 No
cn
o Receiving water quality ❑ Yes El No 0 Yes El No El Yes ❑ No
CSO frequency El Yes El No 0 Yes 0 No El Yes 0 No
Number of storm events 0 Yes 0 No 0 Yes El No ❑ Yes El No
5.6 Provide the following information for each of your CSO outfalls.
CSO Outfall Number CSO Outfall Number CSO Outfall Number
>- Number of CSO events in events events events
7, the past year
R
a-
.= Average duration per hours hours hours
d event 0 Actual or 0 Estimated 0 Actual or 0 Estimated 0 Actual or 0 Estimated
W million gallons million gallons million gallons
o Average volume per event
0 0 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 03/05/19
110009719572 NC0026557 Bryson City 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/
stream system
U.S.Soil Conservation ❑Unknown 0 Unknown ❑ Unknown
Service 14-digit
watershed code
>_ (if known)
Name of state
aa)
cc management/river basin
coU.S.Geological Survey ❑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
exam des
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 ❑ w/variance request(s)
❑ Information for All Applicants El w/additional attachments
❑✓ Section 2:Additional ❑✓ w/topographic map ❑✓ w/process flow diagram
Information ❑✓ w/additional attachments
❑✓ w/Table A ❑ w/Table D
❑✓ Section 3: Information on ❑ w/Table B ❑ w/Table E
Effluent Discharges
E ❑ w/Table C ❑ w/additional attachments
co Section 4: Industrial ❑ w/SIU and NSCIU attachments ❑ w/Table F
❑✓ Discharges and Hazardous
c Wastes Elw/additional attachments
❑ Section 5:Combined Sewer El w/CSO map ❑ w/additional attachments
Overflows
❑ w/CSO system diagram
❑ Section 6:Checklist and ❑✓ w/attachments
Certification Statement
6.2 Certification Statement
/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. lam 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
Regina Mathis Town Manager
Signature Date signed
0023
EPA Form 3510-2A(Revised ) Page 12

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110009719572 NC0026557 Bryson City WWTP 001 OMB No.2040-0004
TABLE A. EFFLUENT PARAMETERS FOR ALL POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant Number of
Value Units Value Units Method1 (include units)
Samples _
Biochemical oxygen demand L
o BOD5 or❑CBOD5 66 mg/I 14.9 mg/I Weekly Composite ❑mD,
(report one)
Fecal coliform 1200 per 100 ml 70.4 per 100 ml Weekly Grab ❑❑ma.
Design flow rate 1.45 MGD 0.514 MGD Continuous _ _
pH(minimum) 6.5 Standard Units
pH(maximum) 7.9 Standard Units
Temperature(winter) 20.1 C 12.5 C Daily
Temperature(summer) 26.6 C 22.7 C Daily
Total suspended solids(TSS) 56 mg/I 11.7 mg/I Weekly Composite 0 ML�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).
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
110009719572 NC0026557 Bryson City WWTP 001 OMB No.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 Value Units Value Units Samplesf Method' (include units)
Ammonia(as N) 27.1 mg/I 5.8 mg/I 2/month Composite ❑ML
❑MDL
Chlorine ❑ML
(total residual,TRC)� 10 ug/I 10 ug/I Weekly Grab ❑MDL
Dissolved oxygen 8.4 mg/I 6.6 mg/I Daily Calculated 0 ML
❑MDL
0 ML
Nitrate/nitrite TN:31.6 mg/I TN:8.9 mg/I Monthly Composite 0 MDL
Kjeldahl nitrogen n/a n/a n/a n/a n/a n/a ❑ML
❑MDL
Oil and grease n/a n/a n/a n/a n/a n/a ❑ML
❑MDL
Phosphorus) 5.0 mg/I 1.3 mg/I Monthly Composite 0 ML
❑MDL
Total dissolved solids n/a n/a n/a n/a n/a n/a 0 ML
❑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 03/05/19
110009719572 NC0026557 Bryson City WWTP ow. OMB No.2040-0004
TABLE C. EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge
Pollutant Analytical ML or MDL
Value I Units Value I Units Number of Samples Methods (include units)
Metals,Cyanide,and Total Phenols
❑ML
Hardness(as CaCO3) ❑MDL
Antimony,total recoverable ❑ML
❑MDL
Arsenic,total recoverable ❑ML
❑MDL
ML
total recoverable
❑MDL
❑ML
Cadmium, • •• .•
o MDL
❑ML
Chromium, • recoverable
❑MDL
❑ML
Copper, • • .•
❑MDL
❑ML
Lead,total recoverable ❑MDL
Mercury,total recoverable ❑ML
❑MDL
Nickel,total recoverable ❑ML
❑MDL
Selenium,total recoverable ❑ML
❑MDL
Silver,total recoverable ❑ML
❑MDL
Thallium,total recoverable ❑ML
❑MDL
Zinc,total recoverable ❑ML
o MDL
Cyanide ❑ML
❑MDL
Total phenolic compounds ❑ML
❑MDL
Volatile Organic Compounds
Acrolein ❑ML
o MDL
Acrylonitrile ❑ML
❑MDL
Benzene ❑ML
❑MDL
Bromoform ❑ML
❑MDL
EPA Form 3510-2A(Revised 3-19) Page 17

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110009719572 NC0026557 Bryson City WWTP 001 OMB No.2040-0004
TABLE C. EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant
Value Units Value Units Number of Methods (include units)
Samples
Carbon tetrachloride ❑ML
❑MDL
Chlorobenzene 0 ML
0 MDL
Chlorodibromomethane ❑ML
❑MDL
Chloroethane ❑ML
❑MDL
❑ML
2-chloroethylvinyl ether ❑MDL
Chloroform ❑ML
❑MDL
Dichlorobromomethane ID ML
❑MDL
❑ML
1,1-dichloroethane ❑MDL
1,2-dichloroethane ❑ML
❑MDL
trans-1,2-dichloroethylene ❑ML
❑MDL
❑ML
1,1-dichloroethylene ❑MDL
1,2-dichloropropane ❑ML
❑MDL
1,3-dichloropropylene ❑ML
❑MDL
Ethylbenzene ❑ML
0 MDL
Methyl bromide ❑ML
0 MDL
Methyl chloride ❑ML
❑MDL
Methylene chloride ❑ML
❑MDL _
1,1,2,2-tetrachloroethane ❑ML
❑MDL
Tetrachloroethylene El ML
❑MDL
Toluene ❑ML
❑MDL
1,1,1-trichloroethane ❑ML
❑MDL
1,1,2-trichloroethane ❑ML
❑MDL
EPA Form 3510-2A(Revised 3-19) Page 18

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110009719572 NC0026557 Bryson City WTP 001 OMB No.2040-0004
W
TABLE C. EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge
Pollutant Analytical ML or MDL
Value Units Value Units Number of Method1 (include units)
Samples
Trichloroethylene ❑ML
❑MDL
Vinyl chloride ❑ML
❑MDL
Acid-Extractable Compounds
p-chloro-m-cresol o ML
❑MDL
2-chlorophenol ❑ML
❑MDL
2,4-dichlorophenol ❑ML
❑MDL
2,4-dimethylphenol ❑ML
❑MDL
4,6-dinitro-o-cresol ❑ML
❑MDL
2,4-dinitrophenol ❑ML
❑MDL
2-nitrophenol ❑ML
❑MDL
4-nitrophenol ❑ML
❑MDL
Pentachlorophenol ❑ML
❑MDL
Phenol ❑ML
❑MDL
2,4,6-trichlorophenol ❑ML
❑MDL
Base-Neutral Compounds
Acenaphthene o ML
❑MDL
Acenaphthylene ❑ML
❑MDL
Anthracene 0 ML
o MDL
Benzidine 0 ML
o MDL
Benzo(a)anthracene ❑ML
❑MDL
Benzo(a)pyrene ❑ML
❑MDL
3,4-benzofluoranthene 0 ML
❑MDL
EPA Form 3510-2A(Revised 3-19) Page 19

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110009719572 NC0026557 Bryson City WTP 001 OMB No.2040-0004
W
TABLE C. EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant
Value Units Value Units Number of Methods (include units)
Samples
Benzo(ghi)perylene ❑ML
❑MDL
Benzo(k)fluoranthene ❑ML
❑MDL
Bis(2-chloroethoxy)methane ❑ML
❑MDL
Bis(2-chloroethyl)ether ❑ML
0 MDL
Bis(2-chloroisopropyl)ether 0 ML
❑MDL
Bis(2-ethylhexyl)phthalate ❑ML
0 MDL
❑ML
0 MDL
❑ML
0 MDL
❑ML
4-bromophenyl phenyl ether
Butyl benzyl phthalate
2-chloronaphthalene
0 MDL
4-chlorophenyl phenyl ether o ML
❑MDL
Chrysene ❑ML
❑MDL
di-n-butyl phthalate ❑ML
❑MDL
di-n-octyl phthalate ❑ML
❑MDL
Dibenzo(a,h)anthracene ❑ML
❑MDL
1,2-dichlorobenzene 0 ML
❑MDL
1,3-dichlorobenzene ❑ML
❑MDL
1,4-dichlorobenzene ❑ML
❑MDL
3,3-dichlorobenzidine ❑ML
❑MDL
Diethyl phthalate ❑ML
0 MDL
Dimethyl phthalate ❑ML
❑MDL
2,4-dinitrotoluene ❑ML
❑MDL
2,6-dinitrotoluene ❑ML
❑MDL
EPA Form 3510-2A(Revised 3-19) Page 20

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110009719572 NC0026557 Bryson City WTP 001 OMB No.2040-0004
W
TABLE C. EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant Number of Method! (include units)
Value Units Value Units Samples
1,2-diphenylhydrazine o ML
0 MDL
Fluoranthene ❑ML
❑MDL
Fluorene ❑ML
❑MDL
Hexachlorobenzene ❑ML
o MDL
❑ML
Hexachlorobutadiene ❑MDL
Hexachlorocyclo-pentadiene ❑ML
❑MDL
0 ML
Hexachloroethane o MDL
Indeno(1,2,3-cd)pyrene ❑ML
0 MDL
Isophorone ❑ML
❑MDL
Naphthalene ❑ML
❑MDL
Nitrobenzene 0 ML
❑MDL
❑ML
N-nitrosodi-n-propylamine ❑MDL
N-nitrosodimethylamine ❑ML
❑MDL
N-nitrosodiphenylamine ❑ML
❑MDL
Phenanthrene ❑ML
❑MDL
Pyrene ❑ML
❑MDL
1,2,4-trichlorobenzene 0 ML
❑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).
EPA Form 3510-2A(Revised 3-19) Page 21

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EPA Identification Number NPDES Permit Number Facility Name Duffel!Number Form Approved 03/05/19
110009719572 NC0026557 Bryson City WWTP 001 OMB No.2040-0004
TABLE D.ADDITIONAL POLLUTANTS AS REQUIRED BY NPDES PERMITTING AUTHORITY
Maximum Daily Discharge Average Daily Discharge
Pollutant Analytical ML or MDL
(list) Value Units Value Units Number of Method' (include units)
Samples
�✓ No additional sampling is required by NPDES permitting authority.
o 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
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑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 O. See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2A(Revised 3-19) Page 23

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110009719572 NC0026557 Bryson City WWTP 001 OMB No.2040-0004
TABLE E. EFFLUENT MONITORING FOR WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample. Copy the table to report additional test results.
Test Information
■ Test Number Test Number Test Number
Test species
Age at initiation of test
Outfall number
Date sample collected
Date test started
Duration
Toxicity Test Methods
Test method number
Manual title
Edition number and year of publication
Page number(s)
Sample Type
Check one: El Grab El Grab ❑ Grab
El 24-hour composite ❑ 24-hour composite ❑ 24-hour composite
Sample Location
Check one: ❑ Before Disinfection ❑ Before Disinfection ❑ Before disinfection
El After Disinfection ❑After Disinfection ❑After disinfection
❑ After Dechlorination ❑ After Dechlorination ❑ After dechlorination
Point in Treatment Process
Describe the point in the treatment process
at which the sample was collected for each
test.
Toxicity Type
Indicate for each test whether the test was ❑ Acute ❑Acute ❑Acute
performed to asses acute or chronic toxicity,
or both.(Check one response.) ❑Chronic El Chronic El Chronic
❑ Both El Both ❑ Both
EPA Form 3510-2A(Revised 3-19) Page 25

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110009719572 NC0026557 Bryson City WTP 001 OMB No.2040-0004
W
TABLE E. EFFLUENT MONITORING FOR WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample. Copy the table to report additional test results.
Test Number Test Number Test Number
Test Type
Indicate the type of test performed.(Check one ❑ Static ❑ Static ❑ Static
response.)
❑ Static-renewal ❑ Static-renewal ❑ Static-renewal
❑ Flow-through ❑ Flow-through ❑ Flow-through
Source of Dilution Water
Indicate the source of dilution water.(Check ❑ Laboratory water ❑ Laboratory water 0 Laboratory water
one response.)
❑ Receiving water ❑ Receiving water 0 Receiving water
If laboratory water,specify type.
If receiving water,specify source.
Type of Dilution Water
Indicate the type of dilution water. If salt ❑ Fresh water ❑ Fresh water ❑ Fresh water
water,specify"natural"or type of artificial
sea salts or brine used. ❑ Salt water(specify) ❑ Salt water(specify) ❑ Salt water(specify)
Percentage Effluent Used
Specify the percentage effluent used for all
concentrations in the test series.
Parameters Tested
Check the parameters tested. ❑ pH ❑ Ammonia ❑ pH ❑ Ammonia ❑ pH ❑ Ammonia
❑ Salinity ❑ Dissolved oxygen ❑ Salinity 0 Dissolved oxygen 0 Salinity ❑ Dissolved oxygen
❑ Temperature ❑ Temperature ❑ Temperature
Acute Test Results
Percent survival in 100%effluent % % %
LC50
95%confidence interval
Control percent survival
EPA Form 3510-2A(Revised 3-19) Page 26

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110009719572 NC0026557 Bryson City WWTP 001 OMB No.2040-0004
TABLE E. EFFLUENT MONITORING FOR WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample.Copy the table to report additional test results.
Test Number Test Number Test Number
Acute Test Results Continued
Other(describe)
Chronic Test Results
NOEC
IC25
Control percent survival %
Other(describe)
Quality ControllQuality Assurance
Is reference toxicant data available? ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
Was reference toxicant test within
acceptable bounds? El Yes ❑ No El Yes El No El Yes El No
What date was reference toxicant test run
(MM/DD/YYYY)? •
Other(describe)
EPA Form 3510-2A(Revised 3-19) Page 27

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EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City WWTP OMB No.2040-0004
TABLE F. INDUSTRIAL DISCHARGE INFORMATION
Response space is provided for three SIUs.Copy the table to report information for additional Sills.
,
SIU SIU_ SIU I
Name of SIU
Mailing address(street or P.O.box)
City,state,and ZIP code
Description of all industrial processes that affect
or contribute to the discharge.
List the principal products and raw materials that
affect or contribute to the SIU's discharge.
Indicate the average daily volume of wastewater
discharged by the SIU. gpd gpd gpd
How much of the average daily volume is
attributable to process flow? gpd gpd gpd
How much of the average daily volume is
attributable to non-process flow? gpd gpd gpd
Is the SIU subject to local limits?
El Yes El No ❑ Yes ❑ No ❑ Yes 0 No
Is the SIU subject to categorical standards?
El Yes El No ❑ Yes ❑ No ❑ Yes ❑ No
EPA Form 3510-2A(Revised 3-19) Page 29

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110009719572 NC0026557 Bryson City WWTP OMB No.2040-0004
TABLE F. INDUSTRIAL DISCHARGE INFORMATION
Response space is provided for three Sills. Copy the table to report information for additional SIUs.
SIU SIU SIU
Under what categories and subcategories is the
SIU subject?
Has the POTW experienced problems(e.g.,
upsets, pass-through interferences)in the past 4.5 El Yes ❑ No El Yes ❑ No ❑ Yes ❑ No
years that are attributable to the SIU?
If yes,describe.
EPA Form 3510-2A(Revised 3-19) Page 30

ENGINEERING ALTERNATIVES ANALYSIS
WASTEWATER TREATMENT PLANT
EXPANSION
TOWN OF BRYSON CITY
SWAIN COUNTY
NORTH CAROLINA
II K1
Shaping
m cg . Communities
Together

l'
ENGINEERING ALTERNATIVES ANALYSIS
WASTEWATER TREATMENT PLANT
EXPANSION
TOWN OF BRYSON CITY
SWAIN COUNTY
NORTH CAROLINA
KEITH WEBB, PE
mcgill ''0,„„.i ,„,,,,„
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55 Broad Street 4.8v"9 r,'
Asheville, NC 28801
NC Firm License No.: C-0459 -.;�{`' .... �"�'
JANUARY 2023
PROJECT NO. 22.00354

TABLE OF CONTENTS
1.0 CURRENT SITUATION 1
2.0 FUTURE SITUATION 10
3.0 STREAM EVALUATION 18
4.0 ALTERNATIVES ANALYSIS 19
5.0 CONCLUSION AND RECOMMENDATION 28
FIGURES
Figure 1: Bryson City WWTP Vicinity Map 3
Figure 2: Bryson City WWTP Existing Site Plan 4
Figure 3: Historical Wastewater Flow 7
Figure 4: Alternative 4 Process Flow Diagram 24
Figure 5: Surface Water Discharge to the Tuckaseigee River Alternative 25
TABLES
Table 1: Bryson City WWTP Current NPDES Permit Discharge Limitations 6
Table 2: Historical Wastewater Flow (MGD) 7
Table 3: 2021-22 WWTP Operating Data 8
Table 4: Bryson City WWTP Compliance History 9
Table 5: Flow Projections 13
Table 6: Proposed Oxidation Ditch Equipment 17
Table 7: Ratings of Soil within Swain County 20
Table 8: Alternative 4 Preliminary Estimate of Probable Cost 26
Table 9: Alternative 4 Estimated Annual O&M Costs 26
Table 10: Summary of Effluent Disposal Alternatives 28
APPENDICES
Appendix A— Bryson City WWTP NPDES Permit NC0026557
Appendix B— 2020 U.S. Census Data
Appendix C— 2020 North Carolina State Demographer Population Estimate
Appendix D—Town of Bryson City 2018-2021 Local Water Supply Plans
Wastewater Treatment Plant Expansion , Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page i of ii

Contact Information
APPLICANT
Name: Town of Bryson City, North Carolina
Mailing Address: 45 Everett Street, Bryson City, NC 28713
Phone Number: 828-488-3335
Contact Person: Regina Mathis, Town Manager
FACILITY
Name: Bryson City Wastewater Treatment Plant
Address: 315 Riverview Road (NCSR 1151), Bryson City, Swain County
County: Swain County
Phone Number: 828-488-3335
Contact Person: Regina Mathis, Town Manager
EAA PREPARER
Name: McGill Associates, P.A.
Address: 55 Broad Street, Asheville, NC 28801
Phone Number: 828-252-0575
Contact Person: Keith Webb, PE (Vice President)
Wastewater Treatment Plant Expansion „, Engineering Alternatives Analysis
Town of Bryson City ��� " January 2023
'Swain County, North Carolina Page ii of ii

1.0 CURRENT SITUATION
1.1 Background Information
Bryson City is located in the Blue Ridge Mountains of Swain County, North Carolina. The region is
characterized by breathtaking views, steep slopes, and numerous recreational opportunities
afforded by Deep Creek, the Tuckaseigee River, and the nearby Great Smoky Mountains National
Park. The Town exhibits a laid-back atmosphere with walkable streets and local shops to explore.
The Great Smoky Mountains Railway is a major tourist attraction, and the four-lane Highway 74
provides convenient access to the area.
A recent census estimated the population of Bryson City to be 1,557 in 2020. Its residents work
in a variety of fields to serve the local community as well as provide services to visitors.
The Town owns and operates a wastewater treatment facility that serves the residents of Bryson
City as well as the surrounding areas within Swain County with a permitted capacity to discharge
up to 0.6 million gallons per day (MGD) of treated effluent to the Tuckaseigee River under NPDES
Permit NC0026557. The treatment facility utilizes the waste activated sludge process. The plant
has two circular steel treatment tanks consisting of an outside ring divided into an aeration zone
and a sludge holding/digestion zone and center circular clarifier for solids removal. Treated
effluent flows to a chlorine contact basin and dechlorination basin for disinfection and
dechlorination prior to discharge. Biosolids are stabilized through digestion in aerobic digesters
and dewatered on-site using a belt filter press. The dewatered solids are removed from the site
and disposed of at a permitted landfill in north Georgia.
The State of North Carolina guidelines 15A NCAC 02T ("2T Rules") direct the permittee to submit
an evaluation of their future wastewater treatment, utilization, and disposal needs, as well as
outline plans for meeting those needs by expansion or reduction of extraneous flows, prior to
exceeding 80% of permitted capacity based on average flow during the last calendar year. Since
2018 to date, the monthly average flow of 0.60 MGD was exceeded twelve times, as shown in
Table 2. An annual average of monthly daily discharge from 2018 to September 2022 revealed
that greater than 80%of plant capacity was exceeded for the years of 2019, 2020, and 2021. The
averages for this time period were 0.454, 0.556, 0.624, and 0.501, and 0.402 MGD, or 84.6% of
plant capacity on average.
Based upon these flow levels,the North Carolina Department of Environmental Quality(NCDEQ),
Division of Water Quality proposed a moratorium disallowing further sewer line extensions. In
response, the Town of Bryson City agreed to complete two engineering studies, a Wastewater
Treatment Plant Alternatives Analysis and an Asset Inventory Analysis. The Wastewater
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 1

Treatment Plant Analysis generally consists of a review and analysis of the condition, capacity,
performance, and longevity of the Town's existing wastewater treatment facility, an evaluation
of improvement alternatives including facility upgrade, expansion, and replacement, and
preparation of a Preliminary Engineering Report (PER) documenting the findings and
recommendations. The Asset Inventory Analysis generally consists of the preparation of a system
assessment plan and approach, condition assessments, identification of recommended projects,
and preparation of preliminary opinions of probable cost. Both studies have been completed,
and the moratorium has been temporarily suspended.
The critical need for a project to improve the treatment of wastewater in the Town of Bryson City
has been established. This report serves to evaluate disposal alternatives for the increase in
treated wastewater effluent that will accompany the plant improvements. Cost estimates and a
conceptual layout for the recommended alternative are provided.
1.2 Existing Treatment System
The Bryson City wastewater system is comprised of the wastewater treatment plant (WWTP),
seven lift stations, nearly two miles of force mains, manholes, and nearly 35 miles of gravity
collection lines, which range in size from 4 to 16 inches in diameter. The WWTP is located in the
southwest area of the city limits. Sewage is conveyed via gravity sewer, force mains, and lift
stations to the WWTP where it is treated then discharged to the Tuckaseigee River. Figure 1
shows a vicinity map of the Bryson City WWTP, while Figure 2 details the layout of the existing
facility.
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 2

Figure 1: Bryson City WWTP Vicinity Map
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Wastewater Treatment Plant Expansion Nil Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 3

Figure 2: Bryson City WWTP Existing Site Plan
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Wastewater Treatment Plant Expansion INEngineering Alternatives Analysis
Town of Bryson
n City ���'" January Page 4 2023
Swain County, North Carolina

1.3 NPDES Permit Limitations
The Bryson City WWTP currently discharges effluent to the Tuckaseigee River under NPDES
permit NC0026557. This permit is set to expire on March 31, 2023; however, since the permit
renewal coincides closely with the timing of modifications and expansion of the WWTP and the
fact that a revised NPDES permit will be required as a result of the plant expansion, the permit
renewal and modifications application will be combined at a later date than typically required
but prior to expiration of the current permit. The NCDEQ is currently in the process of providing
speculative limitations. The current effluent limitations and monitoring requirements are
detailed in Table 1.
1.4 Historical Wastewater Flows
The Discharge Monitoring Reports (DMRs) from January 2018 through September 2022 were
compiled and reviewed. Wastewater flows to the WWTP for the past six years are summarized
in Table 2.
Figure 3 shows the average flow for the WWTP, along with the 30-day rolling average flow. The
average daily flow during the evaluation period was 0.513MGD, which is 86% of the plant's
permitted capacity. The 30-day rolling average flow fluctuated above and below the permit limit.
1.5 Treatment Performance
Table 3 includes a summary of WWTP operational data for October 2021—September 2022. This
data shows that the treatment efficiency of the WWTP, in terms of 5-day biological oxygen
demand (BOD5) and total suspended solids (TSS), was 96.1% and 97.5%, respectively. The
monthly average effluent BOD5 for all twelve months was 10.4 mg/L, which is less than its
monthly effluent limit of 30 mg/L. The monthly average effluent TSS for all twelve months was
6.09 mg/L, which is less than its monthly effluent limit of 30 mg/L.
The Bryson City WWTP has received 24 notices of violations (NOVs) since December of
2019. These deficiencies are summarized in Table 4 below. These deficiencies have been
addressed but some continue to arise from ongoing issues at the plant that are to be addressed
by the proposed WWTP expansion project.
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgifl Page 5

Table 1: Bryson City WWTP Current NPDES Permit Discharge Limitations
Effluent Limitations Monitoring Requirements
Monthly Weekly Daily Measurement Sample Sample
Average Average Maximum Frequency Type Location
Flow 0.6 MGD - - Continuous Recording I or E
BOD,5-day,20°C1 30.0 mg/L 45.0 mg/L - Weekly Composite I &E
Total Suspended 30.0 mg/L 45.0 mg/L - Weekly Composite I &E
Solids
NH3 as N - - - 2X per month Composite I &E
pH Not<6.0 nor>9.0 Standard Units Weekly Grab E
Temperature(°C) - - - Weekly Grab E
Fecal Coliform 200/100 400/100 - Weekly Grab E
(geometric mean) mL mL
Total Residual - - 28 µg/L Daily Grab E
Chlorine
Total Nitrogen, - - - Monthly Composite E
(TN)(mg/I)
TN(mg/I) - - - Monthly Grab U &D
Total Phosphorus - - - Monthly Grab E
(mg/I)
Total Phosphorus - - - Monthly Grab U&D
(mg/1)
1 The monthly average BODS and Total Suspended Solids concentrations shall not exceed 15%of the respective influent values(85%removal).
Wastewater Treatment Plant Expansion lig Engineering Alternatives Analysis
Town of Bryson City mcgill January 2023
Swain County, North CarolinaPage 6

Table 2: Historical Wastewater Flow (MGD)
2018 2019 2020 2021 2022
ADF MDF ADF MDF ADF MDF ADF MDF ADF MDF
January 0.353 0.593 0.520 0.881 0.641 0.953 0.558 0.831 0.416 0.659
February 0.483 0.905 0.626 1.159 0.846 1.450 0.660 0.993 0.487 0.904
March 0.481 0.792 0.672 0.947 0.774 1.344 0.696 1.260 0.431 0.646
April 0.439 0.653 0.606 0.985 0.647 0.895 0.550 0.702 0.374 0.576
May 0.498 0.902 0.559 0.912 0.615 0.797 0.479 0.996 0.440 1.087
June 0.488 0.787 0.534 0.717 0.559 0.700 0.465 0.967 0.372 0.406
July 0.454 0.559 0.526 0.752 0.548 0.696 0.374 0.855 0.374 0.552
August 0.430 0.666 0.487 0.733 0.554 0.765 0.446 0.784 0.379 0.652
September 0.416 0.539 0.417 0.580 0.593 0.886 0.463 0.733 0.329 0.412
October 0.406 0.696 0.511 1.110 0.623 1.062 0.489 0.848 - -
November 0.455 0.880 0.595 1.293 0.538 0.799 0.391 0.476 - -
December 0.552 1.000 0.618 1.035 0.562 0.770 0.455 0.576 - -
Average 0.454 - 0.556 - 0.624 - 0.501 - 0.402 -
Maximum - 1.000 - 1.293 - 1.450 - 1.260 - 1.087
Figure 3: Historical Wastewater Flow
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Date
Daily Flow 30 Day Rolling Average • - 2018-2022 ADF - • •Permitted Flow
Wastewater Treatment Plant Expansion ,I1 Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 7

Table 3: 2021-22 WWTP Operating Data
Flow(MGD) BOD5(mg/L) TSS(mg/L) TN (mg/L) TP(mg/L)
Month Daily Influent Effluent Influent Effluent Effluent Effluent
Avg. Max. Avg. Max. Avg. Avg. Max. Avg Avg. Avg.
Oct 0.489 0.848 242.75 355 7.08 184 271 5.48 7.00 0.24
Nov 0.391 0.476 351 455 2.28 170 218 3.33 6.20 0.19
Dec 0.455 0.576 227.2 312 6.32 176.2 286 4.66 3.90 0.73
Jan 0.416 0.659 138.5 150 4.30 129.25 152 4.55 6.70 0.34
Feb 0.487 0.904 191 255 15.18 176.13 220 5.90 5.70 0.88
Mar 0.431 0.646 207.8 258 13.82 161.4 212 8.84 7.60 1.40 _
Apr 0.374 0.576 262.5 298 29.23 191.75 275 10.43 12.70 1.80
May 0.440 1.087 349 545 12.13 265.75 604 7.50 10.80 0.56 _
June 0.372 0.406 256.6 445 6.74 237.6 483 7.04 5.90 0.78
July 0.374 0.552 397.5 630 10.10 677.25 2150 6.25 4.80 0.39
Aug 0.379 0.652 365 620 9.60 305.4 650 4.66 2.50 0.60
Sept 0.329 0.412 234 358 8.43 258.25 421 4.48 7.20 1.90
Annual Avg./Min/Max 0.411 0.649 268.6 390.1 10.4 244.41 495.17 6.09 6.75 0.82
% Removal 96.1% 97.5%
Wastewater Treatment Plant Expansion ", Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mC 'I' Page 8

Table 4: Bryson City WWTP Compliance History
Date Parameter Limit Value Reported Value Type of Deficiency
3/31/2021 Flow Violation 0.6MGD 0.68MGD Monthly average flow
2/25/2021 Bar Screens NA NA Inadequate function
2/25/2021 Pumps NA NA Hole in return pump line
2/25/2021 Disinfection Liquid NA NA Excess solids and high sludge blanket in CCT
2/25/2021 Effluent Sampling NA NA Composite sampler was not working
Effluent weir plate was breaking loose from the
2/25/2021 Flow Measurement NA NA
concrete
2/28/2021 Flow Violation 0.6MGD 0.65MGD Monthly average flow
1/26/2021 WWTP IPS NA NA 500-gallon spill
12/31/2020 BOD, 5-Day 30mg/I 36.48mg/I Monthly average
12/12/2020 BOD, 5-Day 45mg/I 61mg/I Weekly average
11/30/2020 BOD, 5-Day 30mg/I 50.25mg/I Weekly average
11/28/2020 BOD, 5-Day 45mg/I 56mg/I Weekly average
11/21/2020 BOD, 5-Day 45mg/I 50mg/I _ Weekly average
11/7/2020 BOD, 5-Day 45mg/I 65mg/I Weekly average
10/31/2020 Flow Violation 0.6MGD 0.62MGD Monthly average
10/31/2020 BOD, 5-Day 30mg/I 51.02mg/I Monthly average
10/24/2020 BOD, 5-Day 45mg/I 64mg/I Weekly average
10/17/2020 BOD, 5-Day 45mg/I 66mg/I Weekly average
10/10/2020 BOD, 5-Day 45mg/I 63mg/I Weekly average
5/31/2020 Flow Violation 0.6MGD 0.62MGD Monthly average
4/30/2020 Flow Violation 0.6MGD 0.64MGD Monthly average
3/31/2020 Flow Violation 0.6MGD _ 0.77MGD Monthly average
2/1/2020 Unauthorized Bypass NA NA 500-gallon at the bar screen
12/31/2019 Flow Violation 0.6MGD 0.62MGD Monthly average
Wastewater Treatment Plant Expansion „/ Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 9

2.0 FUTURE SITUATION
2.1 Population Projections
The following statistics were calculated from data provided by the U.S. 2020 Census and the
North Carolina State Demographer's population estimate (Appendix D):
• The population of Swain County increased from 13,981 to 14,117 from 2010 to 2020
(compound annual growth rate of 0.097%), according to the U.S. 2020 Census
• The State of North Carolina's population is estimated to have increased from 9,535,483
in 2010 to 10,587,440 in 2020 (compound annual growth rate of 0.91%)
• The population of the Town of Bryson City increased from 1,424 to 1,557 from 2010 to
2020 (compound annual growth rate of 0.90%), according to the North Carolina State
Demographer
A linear extrapolation of population trends over the past ten years was used to project the future
population. Based on this, the Town's population is expected to reach approximately 1,813
residents by 2042 and 2,046 residents by 2062. Table 7 includes a table of these population
projections.
2.2 Flow Projections
The Bryson City WWTP, currently permitted for 0.6 MGD, is proposed to be upgraded and
expanded to a permitted capacity 1.2 MGD. The expansion will provide the needed treatment
capacity to accommodate future flow increases.
2.2.1 Estimated Residential Flow
The estimated 2042 sewer service population of the Town is 1,800 individuals. Assuming
70 gallons per day per person (gpcd), the 2042 estimated residential wastewater flow is 0.126
MGD. As mentioned previously, the estimated 2062 sewer service population of the Town
of Bryson City is 2,033 individuals. Assuming 70 gpcd, the 2062 estimated residential
wastewater flow is 0.142 MGD.
2.2.2 Estimated Commercial Flow
The estimated commercial sewer flows were first determined by multiplying the estimated
wastewater service population by 15 gpcd. The 2042 estimated commercial wastewater flow
based on this method is 0.027 MGD, and the 2062 estimated commercial wastewater flow is
0.031 MGD.
A review of water usage data from the Town's Local Water Supply Plan (LWSP), however,
suggests a much larger commercial sewer flow than that estimated by the per capita value.
Assuming the number of commercial sewer customers was the same for water and sewer, there
were 405 commercial sewer users in 2021. The water usage for these users that year was 0.1579
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 10

MGD. The Water Environment Federation's Design of Municipal Wastewater Treatment Plants —
Manual of Practice 8, 6th Edition (MOP-8) states that 60%to 90% of water consumption reaches
the sanitary sewer. Assuming 90% of water enters the sewer system, the estimated existing
commercial wastewater flow is 0.142 MGD. It was assumed the commercial flow would remain
constant through 2062.
2.2.3 Existing Industrial Flow
According to the Town's LWSP, there were a total of 1,189 sewer accounts in 2021; however,
these accounts were not separated by usage category (Appendix E). For this reason, the number
of Equivalent Dwelling Units (EDUs) could not be determined for non-residential usage, and the
equivalent average sewer usage by type could not be reliably determined based on sewer flow
records. In order to arrive at an estimate of industrial sewer flow, it was necessary to refer to
water sales. It was assumed that the number of industrial sewer customers was the same for
water and sewer; therefore, there were six (6) industrial sewer users in 2021. The water usage
for these users was 0.0023 MGD. However, a review of recent years from 2018 — 2020 show an
average water usage for industrial users of 0.0157 MGD. This is a rather large discrepancy;
therefore, the average value for 2018—2020 was used. Assuming 90% of water enters the sewer
system, the estimated existing industrial wastewater flow is 0.014 MGD. It was assumed that the
industrial flow would remain constant through 2062.
2.2.4 Existing Institutional Flow
No institutional flow is currently present in Bryson City. It was assumed no institutional flow
would be present through 2062.
2.2.5 Estimated Inflow and Infiltration
20-year and 40-year wastewater flow projections would be incomplete without a discussion of
inflow and infiltration (I/I). Infiltration is groundwater that enters a sewer system through defects
in pipes, joints, manhole walls, or improper connections. Inflow is usually rainfall-related water
that enters the sewer system through public (on-street)or private (off-street) sources. I/I can add
significant flow to a WWTP during maximum day and peak hour flow conditions. I/I generally
does not contribute significantly to organic and solids loadings.
An estimation of I/I first requires an estimation of sanitary sewer flow, which includes all
residential, commercial, industrial, and institutional sewer flows. The sanitary sewer flow for the
Town was calculated by multiplying the average water usage for all residential, commercial,
industrial, and institutional sewer flows by 90%. Using information from the 2021 LWSP, the
sanitary sewer flow was estimated to be 0.275 MGD.
To estimate I/I entering the system, the sanitary flow component (0.275 MGD) was subtracted
from the average daily flow for 2021 (approximately 0.5 MGD) to obtain a value of 0.225 MGD.
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 11

Based on this flow analysis, combined I/I represents approximately 45 percent of the total flow
at the facility on an average daily basis. I/I was estimated to increase proportionally with the
increase in population each year.
2.2.6 Reserve Capacity
Reserve capacity was estimated for various activities, such as new subdivisions and proposed
commercial developments at a rate of 15 gpcd and proposed industrial development is projected
to increase proportionally with the increase in population each year.
The 2042 projected sewer flow to the Bryson City WWTP is approximately 0.585 MGD, while the
2062 projected sewer flow is approximately 0.635 MGD. Table 5 summarizes these projections.
Based on both current and projected wastewater flows, the Town of Bryson City will need to
begin expanding the WWTP beyond 0.600 MGD as soon as possible.
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 12

Table 5: Flow Projections
Unspecified
Projected Residential Reserved
Population Flow Commercial Industrial Institutional I&I Capacity
Year (persons) (MGD) Flow (MGD) Flow(MGD) Flow (MGD) (MGD) (MGD) Total (MGD)
2021 1556 0.1089 0.1421 0.014 0 0.225 0.0373 0.5274
2022 1568 0.1097 0.1421 0.014 0 0.225 0.0376 0.5285
2023 1579 0.1105 0.1421 0.014 0 0.227 0.0378 0.5311
2024 1591 0.1114 0.1421 0.014 0 0.228 0.0380 0.5338
2025 1603 0.1122 0.1421 0.014 0 0.230 0.0381 0.5365
2026 1614 0.1130 0.1421 0.014 0 0.232 0.0383 0.5391
2027 1626 0.1138 0.1421 0.014 0 0.233 0.0385 0.5418
2028 1637 0.1146 0.1421 0.014 0 0.235 0.0387 0.5445
2029 1649 0.1154 0.1421 0.014 0 0.237 0.0388 0.5472
2030 1661 0.1163 0.1421 0.014 0 0.238 0.0390 0.5498
2031 1672 0.1171 0.1421 0.014 0 0.240 0.0392 0.5525
2032 1684 0.1179 0.1421 0.014 0 0.242 0.0394 0.5552
2033 1696 0.1187 0.1421 0.014 0 0.244 0.0395 0.5578
2034 1707 0.1195 0.1421 0.014 0 0.245 0.0397 0.5605
2035 1719 0.1203 0.1421 0.014 0 0.247 0.0399 0.5632
2036 1731 0.1211 0.1421 0.014 0 0.249 0.0401 0.5658
2037 1742 0.1220 0.1421 0.014 0 0.250 0.0402 0.5685
2038 1754 0.1228 0.1421 0.014 0 0.252 0.0404 0.5712
2039 1765 0.1236 0.1421 0.014 0 0.254 0.0406 0.5739
2040 1777 0.1244 0.1421 0.014 0 0.255 0.0407 0.5765
2041 1789 0.1252 0.1421 0.014 0 0.257 0.0409 0.5792
2042 1800 0.1260 0.1421 0.014 0 0.259 0.0411 0.5819
2043 1812 0.1268 0.1421 0.014 0 0.260 0.0413 0.5845
2044 1824 0.1277 0.1421 0.014 0 0.262 0.0414 0.5872
2045 1835 0.1285 0.1421 0.014 0 0.264 0.0416 0.5899
2046 1847 0.1293 0.1421 0.014 0 0.265 0.0418 0.5926
Wastewater Treatment Plant Expansion ® Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 13

Unspecified
Projected Residential Reserved
Population Flow Commercial Industrial Institutional I&I Capacity
Year (persons) (MGD) Flow (MGD) Flow(MGD) Flow (MGD) (MGD) (MGD) Total (MGD)
2047 1859 0.1301 0.1421 0.014 0 0.267 0.0420 0.5952
2048 1870 0.1309 0.1421 0.014 0 0.269 0.0421 0.5979
2049 1882 0.1317 0.1421 0.014 0 0.270 0.0423 0.6006
2050 1893 0.1325 0.1421 0.014 0 0.272 0.0425 0.6032
2051 1905 0.1334 0.1421 0.014 0 0.274 0.0427 0.6059
2052 1917 0.1342 0.1421 0.014 0 0.275 0.0428 0.6086
2053 1928 0.1350 0.1421 0.014 0 0.277 0.0430 0.6113
2054 1940 0.1358 0.1421 0.014 0 0.279 0.0432 0.6139
2055 1952 0.1366 0.1421 0.014 0 0.281 0.0434 0.6166
2056 1963 0.1374 0.1421 0.014 0 0.282 0.0435 0.6193
2057 1975 0.1382 0.1421 0.014 0 0.284 0.0437 0.6219
2058 1987 0.1391 0.1421 0.014 0 0.286 0.0439 0.6246
2059 1998 0.1399 0.1421 0.014 0 0.287 0.0441 0.6273
2060 2010 0.1407 0.1421 0.014 0 0.289 0.0442 0.6300
2061 2021 0.1415 0.1421 0.014 0 0.291 0.0444 0.6326
2062 2033 0.1423 0.1421 0.014 0 0.292 0.0446 0.6353
Wastewater Treatment Plant Expansion ,�, Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 14

2.3 Speculative Effluent Limits
In September 2022, a request was made to the NPDES Municipal Permitting Unit of NCDEQ for
speculative effluent limits for the proposed expansion to 1.2 MGD. The speculative effluent limits
had not yet been received at the time this report was prepared.
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City .A,, January 2023
Swain County, North Carolina mcgIll Page 15

2.4 Proposed Improvements
The proposed improvements will enable the Bryson City WWTP to meet all respective NPDES
permit limitations. The treatment capacity will be expanded from 0.6 MGD to 1.2 MGD. According
to EPA guidance, the peaking factor is the ratio of peak hourly flow to average daily flow. Hourly
flow data was not available for the Bryson City WWTP, so a peaking factor of 3.67 was estimated
based on the following equation provided in the Ten State Standards. However, this peaking
factor equation does not take into consideration I/I.
18 + VP 18 + -V1.556 19.25
Q Peak Hourly ± Q Design Ave = _ _ = 3.67
4 + VP 4 + A/1.556 5.25
Based on an average design flow of 1.2 MGD and the above peaking factor of 3.67, the peak flow
of the plant is estimated to be 4.4 MGD.
2.4.1 Influent Pump Station
A mechanical bar screen, fitted with heat tracing and insultation, is proposed in an influent
channel. Screenings discharged from the washer compactor will discharge into a dumpster. A
bypass influent channel equipped with a manual bar rack will be installed to circumvent the
proposed screen.
The existing influent pump station will be upgraded and will pump screened raw influent to the
proposed headworks. It will be confirmed that the wet well of the proposed influent pump
station is of sufficient size to accommodate the peak hourly flow, as estimated by the Ten State
Standards guidance. Submersible solids-handling pumps will be sized to meet the peak daily flow
of 4.4 MGD with the largest pump out of service (i.e., firm capacity).
2.4.2 Headworks
A grit removal system is proposed as part of the headworks process and will follow the existing
influent pump station. The grit unit will include an approach channel and flooded-suction grit
pumps. The grit pumps will send the grit slurry to the grit concentrators and grit classifiers. A
bypass channel will be installed should a grit chamber become inoperable when high peak flows
are expected. The grit removal process will be designed such that effluent from the process will
flow by gravity to the biological treatment process.
2.4.3 Biological Treatment
The influent pump station will deliver flow to one proposed single train oxidation ditch. The
concentric loop, multi-channel oxidation ditch process utilizes the simultaneous
nitrification/denitrification (SND) activated sludge process and will have four (4) disc aeration
system to provide the system redundancy required by regulations. The ditch will include the
equipment detailed in Table 6.
Wastewater Treatment Plant Expansion C' / Engineering Alternatives Analysis
Town of Bryson City 'I January 2023
Swain County, North Carolina ' Page 16

Table 6: Proposed Oxidation Ditch Equipment
Description Oxidation Ditches
Quantity per Ditch 1
Overall Basin Dimensions, ft 107 x 137
SWD, ft 13
Basin Volume, MG each 1.051
Mixing System Type Disc Aerator
Number of Channels 3
2.4.3.1 Secondary Clarification
Two 50-ft in diameter clarifiers will be constructed for sludge settlingand removal. A return
active sludge/waste active sludge (RAS/WAS) pump station will allow for the proper
management of settled sludge. RAS will be pumped to the oxidation ditch to maintain the
biological process. When sludge wasting is required, the WAS will be pumped to one of the two
existing treatment basins, which will be converted to aerated pre-thickening sludge holding
tank and aerobic digester as detailed in Section 2.4.6.
2.4.4 Disinfection, Dechlorination, and Post-Aeration
One new cast-in-place concrete chlorine contact basin, plus chambers for dechlorination and
post-aeration, will be installed. The proposed chlorine contact basin will provide the required
contact time of 15 minutes at the peak flow of 4.4 MGD. The dechlorination chamber will provide
the required contact time of 30 seconds at the peak flow of 4.4 MGD.
Reaeration of the wastewater is essential to maintain adequate dissolved oxygen concentrations
in the plant effluent. A diffused air system will be installed to achieve the minimum dissolved
oxygen requirement in the effluent.
2.4.5 Effluent Discharge
Ductile iron pipe will connect the proposed chlorine contact basin to one of the existing effluent
manholes along the Tuckaseigee River.
2.4.6 Sludge Handling and Treatment
The two existing treatment basins will be converted to aerated pre-thickening sludge holding
tanks and aerobic digesters, assuming their conditions are acceptable. If it is not acceptable, a
new sludge holding tank will be constructed. Blowers will be installed to supply the required air
for the mixing of the tank and to meet the aerobic digestion requirements. System design will
have an adequate number of blowers to allow the system to meet demands with the largest
blower out of service. A decant system will be used to thicken the sludge, and the existing belt
filter press and building will be rehabilitated.
Wastewater Treatment Plant ExpansionLi / Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgiII Page 17

3.0 STREAM EVALUATION
3.1 Water Quality
The discharge stream for the Bryson City's WWTP's NPDES permit is the Tuckaseigee River (NC
DEQ Stream Index 2-79-(40.5)). Located within the Little Tennessee River Basin (subbasin 04-04-
02), the Tuckaseigee River has a stream classification of "B", which means that the stream is
protected for uses such as aquatic life propagation, survival and maintenance of biological
According to the NPDES Municipal Permitting Unit of NCDEQ, the proposed wastewater
discharge to the Tuckaseigee River will be allowed. The proposed discharge point will upstream
of the existing discharge point.
3.2 Flow Information
The Tuckaseigee River is approximately 60 miles in length, from its source to Fontana Lake. The
Tuckaseigee River has a summer 7Q10 flow of 365 cfs and an annual average flow of 1582 cfs.
3.3 Endangered Species
According to the speculative effluent limit letter from NCDEQ, there are not any Federally Listed
threatened or endangered aquatic species identified within a 5-mile radius of the proposed
discharge location. If there are any identified threatened or endangered species, the U.S. Fish
and Wildlife Service will be contacted to determine whether the proposed discharge location
might impact the species.
Wastewater Treatment Plant Expansion 112 Engineering Alternatives Analysis
Town of Bryson City I' January 2023
���'Swain County, North Carolina Page 18

4.0 ALTERNATIVES ANALYSIS
McGill Associates evaluated four alternatives for the ultimate disposal of wastewater generated
at the Bryson City WWTP. These included connection to an existing public sewer system, land
application, public access reuse, and surface water discharge to the Tuckaseigee River. Each
alternative is discussed in more detail within this section.
4.1 Alternative No. 1—Connection to an Existing Public Sewer System
Alternative 1 does not include an expansion of the Bryson City WWTP. Under this alternative,
0.6 MGD of treated wastewater would continue to be discharged to the Tuckaseigee River, as
permitted under the existing Bryson City WWTP NPDES permit. The remaining 0.6 MGD of raw
wastewater would flow to a nearby existing public sewer system.
There are no existing municipal WWTPs within a five-mile radius of the Bryson City WWTP that
are larger than the Bryson City facility, nor any known regional sewer systems planned within a
five mile radius. Therefore, this alternative was deemed infeasible.
4.2 Alternative No. 2— Land Application
The expansion of the Bryson City WWTP under Alternative No. 2 includes the installation of a
biological treatment process with advanced tertiary treatment to treat 1.2 MGD of raw
wastewater. Alternative No. 2 consists of evaluating the possibility for land application of part of
the treated wastewater effluent. Under this alternative, 0.6 MGD of treated effluent would
continue to be discharged to the Tuckaseigee River, as permitted under the existing Bryson City
WWTP NPDES permit. The remaining 0.6 MGD would be land applied to nearby farmland, golf
courses, or other available lands suitable for such use with spray irrigation.
Assuming that the Bryson City WWTP operates at maximum capacity, 4.2 MG of reuse water
would be land applied on a weekly basis. For this analysis, it was assumed that land application
could occur 70% of the year, due to a variety of factors including excessively wet soils, crop
harvesting, poor weather, etc. The weekly reuse water flow is calculated below:
max.weekly flow 4,200,000
Weekly Reuse Water Flow = _ = 6,000,000 gallons
usage ratio 0.7
According to the USDA Natural Resources Conservation Service (NRCS) Web Soil Survey, the
majority of soils within the Bryson City area are unsuitable for the disposal of wastewater by
irrigation, as shown below in Table 7. This is primarily due to steep slopes, low adsorption rates,
high groundwater table, and flooding issues. Several areas exist with some capacity for irrigation.
Although the NRCS refers to these areas as "somewhat limited",the limitations can be overcome
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcguIl Page 19

or minimized by special planning, design, or installation. For the purposes of this analysis, it was
assumed that these limitations could be overcome.
Table 7: Ratings of Soil within Swain County
Rating Acres Percent
Very Limited 122,714 96.1
Somewhat Limited 554 0.4
Null or Not Rated 4449 3.5
A conservative estimate of the hydraulic loading rate is 1-inch per acre per week, which also
corresponds to the irrigation rate required for fescue hay (the preferred crop for the proposed
irrigation operation). With this loading rate, approximately 221 acres would be required for
disposal by land application.
1 acre — inch = 27,156 gallons
6,000,000 gallons Land Required = gallons = 221 acres
27,156 acre
Suitable land application sites with sufficient acreage were not present within the project area,
adjacent parcels, or even the county. The largest cumulative area of lands with a "somewhat
limited" soil rating constituted a farm with a total of approximately 100 acres of the property
falling within this rating.The remaining parcels of land with a "somewhat limited" soil rating were
small and sparsely located too far apart to produce a cumulative acreage within reasonable
proximity. Therefore, this alternative was deemed infeasible.
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 20

4.3 Alternative No. 3— Public Access Reuse
The expansion of the Bryson City WWTP under Alternative No. 3 includes the installation of a
biological treatment process and tertiary treatment to treat 1.2 MGD of raw wastewater.
Alternative No. 3 proposes to reuse part of the effluent in publicly accessible areas. Reuse differs
from land application by the quality of the effluent and has stricter requirements. Land
application requires a higher infiltration rate than reuse; therefore, more soils may be suitable
for reuse than for land application.
Reuse applications include a variety of land uses, such as golf course irrigation, crop irrigation
including hardwood or pine plantations or grasses, athletic field irrigation, landscape uses, and
commercial/industrial uses. Some of these were evaluated in Alternative No. 2 and ruled out as
infeasible due to lack of sufficient suitable acreage for the entire 0.6 MGD additional capacity
proposed for the expansion of the WWTP. Reuse by a select group of customers, including
industries and golf courses, was first investigated.
No golf courses were located within a five-mile radius of the Town and no major industrial users
are identified in the service area either. Therefore, a supplemental residential and commercial
public access reuse option was explored.
Based on the above information, a minimum of 600,000 gallons of reuse water would need to be
utilized by residential customers. Assuming that the reuse water is used for home irrigation, a
conservative estimate of summer water usage is 0.75 inches of water per acre per week. With an
average irrigation frequency of 70% and an average lawn size of 0.25 acres, approximately 1,179
residential customers would be needed to utilize the remaining 600,000 gallons of reuse water.
gallons 1 acre — in 7 days acre — in
600,000 * * = 155
day 27,156 gallons 1 week week
acre — in 1 1 week 1 customer
155 * — * * = 1,179 customers
week 0.7 0.75 acre — in 0.25 acres
According to the LWSP 2021 there were 1,189 sewer customers. With the residential population
projected to continually increase, there will be plenty of residential sewer customers available to
utilize the reuse water for residential irrigation.
However, Alternative 3 would require advanced treatment, which would increase the cost of the
WWTP improvements significantly. Also, this alternative would require the construction of a
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 21

distribution system on the scale of a potable water distribution system and would depend on a
successful public outreach program. Due to the enormity of such a reuse distribution system and
the subsequent significant capital investment required for construction, Alternative 3 was
considered cost prohibitive to implement, relative to a direct discharge alternative. For this
reason, a preliminary estimate of cost was not prepared for Alternative 3.
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mCgill Page 22

4.4 Alternative No. 4—Surface Water Discharge to the Tuckaseigee River
As shown in Figure 4, the expansion of the Bryson City WWTP under Alternative 4 includes the
installation of a biological treatment process to treat 1.2 MGD of raw wastewater. Under this
alternative, 1.2 MGD of treated effluent would be discharged to Tuckaseigee River, as stated in
the proposed improvements of Section 2.
The expansion of the Bryson City WWTP to 1.2 MGD would include a new influent screen and grit
removal, upgrade of the influent pump station, construction of an oxidation ditch, two secondary
clarifiers, a RAS/WAS pump station, a chlorine contact basin with dechlorination and post-
aeration chambers, repurposing of the existing treatment plant basins for sludge holding,
replacement/refurbishing of the existing belt filter press and building, chemical feed equipment,
yard piping, and all associated electrical equipment.
Alternative 4 would require the construction of approximately 200 LF of 16-inch diameter gravity
discharge piping and three 5-ft. diameter effluent manholes. The proposed gravity discharge
pipeline would transport the treated effluent from the proposed re-aeration chamber to a new
discharge location along the Tuckaseigee River. The proposed gravity discharge pipeline and
effluent manholes would be situated on land currently owned by TVA. Alternative 4 assumes that
the expanded WWTP would be capable of meeting its approved NPDES permits and would
comply with the reliability requirements specified in 15A NCAC 2H.0124.
Figure 5 shows a preliminary site plan of the proposed expanded treatment facility with surface
water discharge to the Tuckaseigee River.
A preliminary estimate of cost, shown in Table 8, was prepared utilizing the preliminary layout
presented in Figure 5. An estimate of the annual O&M costs is included in Table 9. These assume
a 20-year design life and a discount rate of 2.25%. No salvage value is anticipated and was
therefore not taken into consideration. The total present value of Alternative 4 is $22,698,000
in terms of 2023 dollars.
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
���''I
Swain County,Tennessee Page 23

Figure 4: Alternative 4 Process Flow Diagram
INFLUENT
WASTEWATER
11.2 MOD
INFLUENT
SPIRAL BAR • SCREENINGS
SCREEN
[2]
,1.2 MOD
VORTEX GRIT
REMOVAL OBIT
SYSTEM
1.2 MOD
FL1RATE INFLUENT
PUMP
STATION
TUCKASEIGEE
RIVER
LANDFILL
1
1.2 MOD 1.1e MOD
SLUDGE
PRESS RE—AEZATION
BAS
IN
MOD
DECHLOR—
WATION TE
OXIDATION DITCH BASIN
1.16 MOD
r
CHLORINE
SLUDGE CONTACT SODIUM
— HOLDING BASIN HYPOCILOATIE
[2] j
L30 MOD
1:1
2 1.1e MOD
RAS AS
PUMP - -CLARIFIER [2]
STATION
i
1.2 MOD
EMMEN OF UNfTS TOTAL]
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City ���''I January 2023
Swain County, North Carolina Page 24

Figure 5: Surface Water Discharge to the Tuckaseigee River Alternative
i/ -REPURPOSE
',ally/ FOR I
SLUDGE
/ I 1• HOLDING /
'` REPURPOSE,
FOR
4/� /4/, \ SLUDGE /
• 1 HOLDING /I/7
//1//
y
./, .t REPLACE EX`
BELT FILTER ' V `
,PRESS de REHAB
' L� ! "r SEX. BUILDINGp.
_ -
ji '/ wMfir
\.
i „-.9,
il
'f'' i /
'il PROP.
S i• I HEADWORKS.
PROP. (GRIT
INFLUENT REMOVAL)
SCREENING
UPGRADE :'
EX. \
INFLUENT
PROP. PUMP
ELECTRICAL STATION :t:t tyi::.:
BUILDING :' ?:+:::.;::•: ;:'
RO LAw PROP. v�`S':.+� M:::.
SLUDGE •.t:•.'`}�..:'•::: ::::•,'.;:::::..'.::::::••:
PUMP ,...*:76,. •..:w:::.......4}:v.
STATION v .PROP. OXIDATION i
:vy, , DITCH
F7 =INAL i
"IER I 41
AtIMIk
.Jo-,EAP 444W 'ROP. FINAL,
,,.JOOPJJN-,,,,,N. Lf'i"FR
lUCKAmIiE RIVER
N
-1F—CHL0�2INA"Of.-'�
AN -CAE
/
Wastewater Treatment Plant Expansion ,,, Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina megill Page 25
I

Table 8: Alternative 4 Preliminary Estimate of Probable Cost
PRELIMINARY OPINION OF PROBABLE COST
ENGINEERING ALTERNATIVE ANALYSIS -ALTERNATIVE 4
TOWN OF BRYSON CITY
JANUARY 2023
ITEM DESCRIPTION QUAN. UNIT UNIT PRICE TOTAL
Mobilization General
1 Requirements/Erosion 1 LS 3% $ 376,400
Control/Plant Water System
2 Site Work/Yard Piping 1 LS $ 920,000 $ 920,000
3 Influent Pump Station 1 LS $ 700,000 $ 700,000
4 Headworks 1 LS $ 1,170,000 $ 1,170,000
5 Process Equipment 1 LS $ 1,200,000 $ 1,200,000
6 Process Basins 1 LS $ 4,095,000 $ 4,095,000
7 Disinfection System 1 LS $ 350,000 $ 350,000
8 Sludge/Solids Handling 1 LS $ 810,000 $ 810,000
9 Electrical/Control/Standby Power 1 LS $ 2,925,000 $ 2,925,000
CONSTRUCTION SUBTOTAL $ 12,546,400
CONTINGENCY $ 1,255,000
ENGINEERING FEES $ 967,000
DESIGN AND CONSTRUCTION ADMINISTRATION $ 691,000
LEGAL & ADMINISTRATIVE COSTS $ 139,000
ENVIRONMENTAL ASSESSMENT $ 277,000
PROJECT TOTAL $ 15,875,400
Table 9: Alternative 4 Estimated Annual O&M Costs
ITEM O&M DESCRIPTION QUAN. UNIT UNIT PRICE AMOUNT
1 Maintenance & Repairs 1 LS $ 158,100 $ 158,100
2 Electricity 1 LS $ 161,260 $ 161,260
3 Labor 1 LS $ 62,400 $ 62,400
4 Chemicals 1 LS $ 45,600 $ 45,600
Total Annual O&M Cost $ 427,360
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City :r'
y mcglll JanuaryPage 20236
Swain County, North Carolina 26

4.5 Alternative No. 5—Combination of Alternatives
As only one alternative was deemed feasible, a combination of alternatives was not applicable
for the proposed expansion of the Bryson City WWTP.
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City January 2023
Swain County, North Carolina mcgill Page 27

5.0 CONCLUSION AND RECOMMENDATION
Table 10 contains a summary of the alternatives evaluated for the disposal of treated wastewater
from the Bryson City WWTP.
Table 10: Summary of Effluent Disposal Alternatives
Annual O&M
Alternative Description Project Total Cost Present Worth
Connection to Public
1 Sewer System N/A N/A N/A
2 Land Application N/A N/A N/A
3 Public Access Reuse N/A N/A N/A
Surface Water
Discharge to
4 Tuckaseigee River $ 15,875,400 $ 427,360 $ 22,698,000
Combination of
5 Alternatives N/A N/A N/A
Based on the results of the alternatives analysis, it is recommended that the Town pursue
Alternative 4, direct discharge to surface water, for disposal of treated effluent from the WWTP.
Wastewater Treatment Plant Expansion Engineering Alternatives Analysis
Town of Bryson City " January 2023
�� '
Swain County, North Carolina Page 28

APPENDIX A
Bryson City WWTP
NPDES Permit NC0026557

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
Water Resources LINDA CULPEPPER
Environmental Quality Interim Director
February 28, 2018
Mr. Chad Simons,Town Manager
Town of Bryson City
P.O. Box 726
Bryson City,NC 28713
Subject: Issuance for NPDES Permit NC0026557
Bryson City WWTP,WW-2
Swain County
Dear Mr. Simons.
The Division of Water Resources (the Division) hereby issues the attached NPDES permit for the subject
facility This permit is issued pursuant to the requirements of North Carolina General Statute 143-215 1 and
the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency
dated October 15, 2007, or as subsequently amended.
The Division understands that you have made no significant changes to your facility since the last permit
renewal.We have made the following updates to your previous permit:
1. The facility map has been updated.
2. Regulatory citations have been added.
3. Parameter codes have been added to Section A (1 ).
4. Electronic reporting of discharge monitoring reports (eDMR)has been added in Section A. (2.).
5. A Mercury TMDL evaluation did not indicate that a limit was required. Therefore,Total Mercury
monitoring has been removed.
6 Total Nitrogen(TN) and Total Phosphorus (TP)effluent monitoring has been increased to monthly
sampling.Additionally,TN and TP instream monitoring has been added with monthly grab sampling
This monitoring has been added for the Division to investigate sources of nutrients in the Tuckasegee
River and to better understand the cause of algal blooms in Fontana Lake.
7 The outfall location has been adjusted to the following coordinates:
Latitude 35°25' 20"N
Longitude 83°27' 42"W
We have made the follow changes since the draft permit:
8. The facility description on the supplement to permit cover sheet has been updated to replace the
"sludge drying bed"with"a belt press and sludge dry storage".
State of North Carolina I Environmental Quality
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-707-9000

Mr. Simons
February 28, 2018
Page 2 of 2
If any parts,measurement frequencies,or sampling requirements contained in this permit are unacceptable,
you have the nght to an adjudicatory hearing,upon wntten request submitted within thirty(30)days after
receiving this letter.Your request must take the form of a wntten petition conforming to Chapter 150B of
North Carolina General Statutes,and you must file it with the Office of Administrative Hearings, 6714 Mail
Service Center,Raleigh,North Carolina 27699-6714 Unless such a demand is made,this permit shall remam
final and binding.
Please note that this permit is not transferable except after notice to the Division The Division may require
modification or revocation and reissuance of the permit.This permit does not affect the legal requirements to
obtain other permits which may be required by the Division of Water Resources or any other Federal, State,
or Local governmental permits that may be required.
If you have questions,or if we can be of further service,please contact Derek Denard at
[derek.denard@ncdenr gov] or call(919) 807-6307.
;:;
I lly,
Linda Culpepper,Inte
Division of Water Resources,NCDEQ
Enclosure.NPDES Permit NC0026557(Issuance Final)
he Central Files
NPDES Program Files
ARC)Files/Attn Landon Davidson
ec DWR/Planning Section,Michelle Raquet[michelle raquet®ncdenr gov]
DWR/WSS/Ecosystems Branch,Mark Vander Borgh[mark vanderborgh@ncdenr gov]
Michael Whittenburg,EI,McGill Associates,P A.[michael whittenburg@mcgillengineers coin]

NPDES Permit NC0026557
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
NPDES
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,the
Town of Bryson City
is hereby authorized to discharge wastewater from a facility located at the
Bryson City VVWTP
315 Riverview Road, Bryson City 28713
Swain County
to receiving waters designated as the Tuckasegee River in the Little Tennessee River Basin in accordance
with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, and IV
hereof.
The permit shall become effective April 1, 2018.
This permit and the authorization to discharge shall expire at midnight on March 31, 2023.
Signed this day February 28, 2018.
da Culpepper, Interim Dir
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

NPDES Permit NC0026557
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 bearing 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.
Town of Bryson City
is hereby authorized to:
1. continue to operate an existing 0.6 MGD wastewater treatment facility that includes the following
treatment components:
• mechanical Bar Screen
• two (2) contact stabilization treatment umts consisting of influent pumping, aeration and
reaeration zones, secondary clarifiers and sludge digester
• belt press and sludge dry storage
• chlorination
• dechlorination
located at 315 Riverview Road(NCSR 1151),Bryson City, Swain County; and
2. discharge from said treatment works via Outfall 001, at the location specified on the attached map,
into the Tuckasegee River [stream index 2-79-(40.5)], currently classified B waters within Subbasin
04-04-02 [HUC: 060102030405] in the Little Tennessee River Basin.
Page 2 of 6

•
NPDES Permit NC0026557
PART I
A. (l.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee
is authorized to discharge from Outfall 001. Such discharges shall be limited,monitored and reported' by
the Permittee as specified below:
EFFLUENT LIMITS MONITORING EQUIREMENTS1
CHARACTERISTIC Monthly Weekly Daily Measurement Sample Sample 2
[Parameter Codes] Average Average Maximum Frequency Type Location
Flow(MGD) 50050 0 6 MGD Continuous Recording 1 or E
BOD,5-day(20°C)3 C0310 30.0 mg/I 45.0 mg/1 Weekly Composite I&E
Total Suspended Solids C0530 30 0 mg/1 45.0 mg/I Weekly Composite I&E
(TSS)(mg/1)
Ammonia Nitrogen C0610 2/month Composite I&E
(NH3( as N)(mg/1)
Fecal Cohform(#100m1)4 31616 200/100 ml 400/100 ml Weekly Grab E
(geometric mean)
pH(su) 00400 Not<6 0 nor>9 0 Standard Units Weekly Grab E
Total Residual Chlorine 5 50060 28 µg/15 Weekly Grab E
(TRC)(µg/1)
Temperature(°C) 00010 Weekly Grab E
Total Nitrogen(TN)(mg/1)6 C0600 Monthly Composite E
Total Phosphorus(TP)(mg/1) C0665 Monthly Composite E
Total Nitrogen(TN)(mg/1)6 C0600 Monthly Grab U&D
Total Phosphorus(TP) (mg/1) C0665 Monthly Grab U&D
Footnotes:
1. The Permittee shall begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR
application system See Condition A. (2 )
2. I= Influent E= Effluent, U=Upstream: at least 100 feet above discharge D= Downstream: at least 300 feet
below discharge
3. The monthly average BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective
influent values(85%removal).
4. Fecal Cohform shall be calculated using the geometric mean, according to the procedure detailed in Part II.
Section A.
5 Total Residual Chlorine limit and monitoring is required only if chlorine is utilized in the treatment process
The Division shall consider all effluent TRC values reported below 50 ug/L to be in compliance with the
permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory(including field certified), even if these values fall below 50 ug/L.
6. For a given wastewater sample,TN=TKN+(NO2-N+NO3-N),where TN is Total Nitrogen and TKN is Total
Kjeldahl Nitrogen,and(NO2-N+NO3-N)is Nitrite/Nitrate Nitrogen.
Conditions:
• There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 6

NPDES Permit NC0026557
A. (2.) ELECTRONIC REPORTING OF MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs)and program reports.
The final NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015.
NOTE This special condition supplements or supersedes the following sections within Part II of this permit
(Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D (2.) Reporting
• Section D (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting Requirements [Supersedes Section D.(2.)and Section E.(5.) (a)1
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge
Monitoring Report(eDMR)internet application.
Monitoring results obtained during the previous month(s)shall be summarized for each month and submitted
electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit
DMRs electronically using the internet Until such time that the state's eDMR application is compliant with
EPA's Cross-Media Electronic Reporting Regulation(CROMERR),permittees will be required to submit all
discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR
submission by printing, signing,and submitting one signed original and a copy of the computer printed eDMR
to the following address:
NC DEQ/Division of Water Resources/Water Quality Permitting Section
ATTENTION• Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being
physically located in an area where less than 10 percent of the households have broadband access,then a
temporary waiver from the NPDES electronic reportmg requirements may be granted and discharge monitoring
data may be submitted on paper DMR forms(MR 1, 1.1,2,3)or alternative forms approved by the Director.
Duplicate signed copies shall be submitted to the mailing address above. See"How to Request a Waiver from
Electronic Reporting"section below.
Regardless of the submission method,the first DMR is due on the last day of the month following the issuance
of the permit or in the case of a new facility,on the last day of the month following the commencement of
discharge.
Starting on December 21,2020,the permittee must electronically report the following compliance monitoring
data and reports,when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
• Clean Water Act(CWA) Section 316(b)Annual Reports.
The permittee may seek an electronic reporting waiver from the Division(see"How to Request a Waiver from
Electronic Reporting" section below).
Page 4 of 6

NPDES Permit NC0026557
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9),the permittee must identify the initial recipient at the time of each
electronic submission. The permittee should use the EPA's website resources to identify the initial recipient
for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity(EPA or
the state authonzed by EPA to implement the NPDES program)that is the designated entity for receiving
electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of
electronic submission and for each state. Instructions on how to access and use the appropnate electronic
reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at:
http://www2.epa.gov/compliance/final-national-pollutant-discharge-elunmation-system-npdes-electronic-
reportmg-rule.
Electronic submissions must start by the dates listed in the"Reporting Requirements"section above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic
reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division.
Requests for temporary electronic reporting waivers must be submitted in writmg to the Division for written
approval at least sixty(60)days prior to the date the facility would be required under this permit to begin
submitting monitoring data and reports The duration of a temporary waiver shall not exceed 5 years and shall
thereupon expire At such time,monitoring data and reports shall be submitted electronically to the Division
unless the permittee re-applies for and is granted a new temporary electronic reporting waiver by the Division.
Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting
waiver request may submit monitoring data and reports on paper to the Division for the period that the
approved reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on the
following web page:
http//deq nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B.(11.)(b)and Supersedes Section B.(11.)(d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described m Part II, Section
B (11.)(a)or by a duly authorized representative of that person as described in Part II, Section B. (11.)(b). A
person,and not a position,must be delegated signatory authonty for eDMR reporting purposes.
For eDMR submissions,the person signing and submitting the DMR must obtain an eDMR user account and
login credentials to access the eDMR system. For more information on North Carolina's eDMR system,
registering for eDMR and obtaining an eDMR user account,please visit the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
Page 5 of 6

NPDES Permit NC0026557
Certification Any person submitting an electronic DMR using the state's eDMR system shall make the
following certification [40 CFR 122 22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE
ACCEPTED:
"1 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.lam aware that there are significant penalties for
submitting false information, including the possibility of fines and imprisonment for knowing violations "
5. Records Retention [Supplements Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring Reports,mcluding eDMR submissions. These
records or copies shall be mamtamed for a penod of at least 3 years from the date of the report. This penod
may be extended by request of the Director at any time[40 CFR 122.41].
Page 6 of 6

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I NPDES Permit NC0026577
315 Riverview Road, Bryson City 28713 35.4222°N,-83.4617°W
Receiving Stream:Tuckasegee River Stream Class: B NC Grid: FSNW
Stream Segment:2-79-(40.5) Sub-Basin#:04-04-02 ti( \i I USGS Quad: Bryson City,NC
River basin: Little Tennessee HUC:060102030405 1 1-1 00 County: Swain
t

A

. NPDES Permit Standard Conditions
Page 1 of 18
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
Section A. Definitions
2/Month
Samples are collected twice per month with at least ten calendar days between sampling events These samples shall be
representative of the wastewater discharged during the sample period
3/Week
Samples are collected three times per week on three separate calendar days.These samples shall be representative of
the wastewater discharged during the sample period
Act or"the Act"
The Federal Water Pollution Control Act,also known as the Clean Water Act(CWA),as amended,33 USC 1251,et.
seq.
Annual Average
The arithmetic mean of all "daily discharges" of a pollutant measured dunng the calendar year.In the case of fecal
coliform,the geometric mean of such discharges
Anthmetic Mean
The summation of the individual values divided by the number of individual values
Bypass
The known diversion of waste streams from any portion of a treatment facility including the collection system,which is
not a designed or established or operating mode for the facility.
Calendar Day
The period from midnight of one day until midnight of the next day.However,for purposes of this permit,any
consecutive 24-hour period that reasonably represents the calendar day may be used for sampling.
Calendar Week
The period from Sunday through the following Saturday
Calendar Quarter
One of the following distinct periods:January through March,April through June,July through September,and
October through December
Composite Sample
A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 mL in
such a manner as to result in a total sample representative of the wastewater discharge during the sample period.The
Director may designate the most appropriate method(specific number and size of aliquots necessary,the time interval
between grab samples,etc.)on a case-by-case basis. Samples may be collected manually or automatically Composite
samples may be obtained by the following methods:
(1) Continuous.a single,continuous sample collected over a 24-hour period proportional to the rate of flow.
(2) Constant time/variable volume a series of grab samples collected at equal time intervals over a 24 hour period
of discharge and combined proportional to the rate of flow measured at the time of individual sample
collection,or
(3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period with
the time intervals between samples determined by a preset number of gallons passing the samplmg point. Flow
measurement between sample intervals shall be determined by use of a flow recorder and totalizer,and the
preset gallon Interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at
the treatment system,or
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NPDES Permit Standard Conditions.
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(4) Constant time/constant volume a series of grab samples of equal volume collected over a 24-hour period at a
constant time interval Use of this method requires prior approval by the Director This method may only be
used in situations where effluent flow rates vary less than 15 percent.The following restrictions also apply.
➢ Influent and effluent grab samples shall be of equal size and of no less than 100 milliliters
➢ Influent samples shall not be collected more than once per hour
➢ Permittees with wastewater treatment systems whose detention time<24 hours shall collect effluent grab
samples at intervals of no greater than 20 minutes apart during any 24-hour period
➢ Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect effluent
grab samples at least every six hours;there must be a minimum of four samples during a 24-hour sampling
penod
Continuous flow measurement
Flow monitoring that occurs without interruption throughout the operating hours of the facility Flow shall be
monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance
activities on the flow device
Daily Discharge
The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the
calendar day for purposes of sampling For pollutants measured in units of mass,the"daily discharge" is calculated as
the total mass of the pollutant discharged over the day.For pollutants expressed in other units of measurement,the
"daily discharge"is calculated as the average measurement of the pollutant over the day (40 CFR 122.2;see also
"Composite Sample,"above)
Daily Maximum
The highest"daily discharge"during the calendar month
Daily Sampling
Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in the
permit. Sampling shall be conducted on weekdays except where holidays or other disruptions of normal operations
prevent weekday sampling. If sampling is required for all seven days of the week for any permit parameter(s),that
requirement will be so noted on the Effluent Limitations and Monitoring Page(s)
DWR or"the Division"
The Division of Water Resources,Department of Environmental Quality.
Effluent
Wastewater discharged following all treatment processes from a water pollution control facility or other point source
whether treated or untreated.
EMC
The North Carolina Environmental Management Commission
EPA
The United States Environmental Protection Agency
Facility Closure
Cessation of all activities that require coverage under this NPDES permit. Completion of facility closure will allow this
permit to be rescinded.
Geometnc Mean
The Nth root of the product of the individual values where N=the number of individual values.For purposes of
calculating the geometric mean,values of"0"(or"<[detection level]")shall be considered= 1.
Grab Sample
Individual samples of at least 100 mL collected over a period of time not exceeding 15 minutes Grab samples can be
collected manually.Grab samples must be representative of the discharge(or the receiving stream,for instream
samples).
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Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CWA
Instantaneous flow measurement
The flow measured during the minimum time required for the flow measuring device or method to produce a result in
that instance.To the extent practical,instantaneous flow measurements coincide with the collection of any grab
samples required for the same sampling period so that together the samples and flow are representative of the discharge
during that sampling period.
Monthly Average(concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month In the case of fecal
coliform or other bacterial parameters or indicators,the geometric mean of such discharges
Permit Issuing Authority
The Director of the Division of Water Resources.
Quarterly Average(concentration limit)
The arithmetic mean of all samples taken over a calendar quarter.
Severe property damage
Substantial physical damage to property,damage to the treatment facilities which causes them to become inoperable,or
substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a
bypass. Severe property damage excludes economic loss caused by delays in production.
Toxic Pollutant.
Any pollutant listed as toxic under Section 307(a)(1)of the CWA.
Upset
An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with
permit effluent limitations and/or monitonng requirements An upset does not include noncompliance caused by
operational error, improperly designed treatment facilities, inadequate treatment facilities,lack of preventive
maintenance,or careless or improper operation.
Weekly Average(concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week In the case of fecal
coliform or other bacterial parameters or indicators,the geometric mean of such discharges.
Section B. General Conditions
1. Duty to Comply
The Permittee must comply with all conditions of this permit.Any permit noncompliance constitutes a violation of
the CWA and is grounds for enforcement action;for permit termination,revocation and reissuance,or
modification;or denial of a permit renewal application[40 CFR 122 41]
a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a)of the
CWA for toxic pollutants and with standards for sewage sludge use or disposal established under section
405(d)of the CWA within the time provided in the regulations that establish these standards or prohibitions or
standards for sewage sludge use or disposal,even if the permit has not yet been modified to incorporate the
requirement.
b The CWA provides that any person who violates section[s] 301,302,306,307,308,318 or 405 of the Act,or
any permit condition or limitation implementing any such sections in a permit issued under section 402,or any
requirement imposed in a pretreatment program approved under sections 402(a)(3)or 402(b)(8)of the Act, is
subject to a civil penalty not to exceed$37,500 per day for each violation. [33 USC 1319(d)and 40 CFR
122 41(a)(2)]
c. The CWA provides that any person who negligently violates sections 301,302,306,307,308,318,or 405 of
the Act,or any condition or limitation implementing any of such sections in a permit issued under section 402
of the Act,or any requirement imposed in a pretreatment program approved under section 402(a)(3)or
402(b)(8)of the Act,is subject to criminal penalties of$2,500 to$25,000 per day of violation,or
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imprisonment of not more than 1 year,or both. In the case of a second or subsequent conviction for a negligent
violation,a person shall be subject to criminal penalties of not more than$50,000 per day of violation,or by
imprisonment of not more than 2 years,or both [33 USC 1319(c)(1)and 40 CFR 122.41(a)(2)]
d Any person who knowingly violates such sections, or such conditions or limitations is subject to criminal
penalties of$5,000 to$50,000 per day of violation,or imprisonment for not more than 3 years,or both In the
case of a second or subsequent conviction for a knowing violation,a person shall be subject to criminal
penalties of not more than$100,000 per day of violation, or impnsonment of not more than 6 years,or both.
[33 USC 1319(c)(2)and 40 CFR 122.41(a)(2)]
e. Any person who knowingly violates section 301,302,303,306,307,308,318 or 405 of the Act,or any permit
condition or limitation implementing any of such sections in a permit issued under section 402 of the Act,and
who knows at that time that he thereby places another person in imminent danger of death or serious bodily
injury,shall,upon conviction,be subject to a fine of not more than$250,000 or imprisonment of not more than
15 years,or both.In the case of a second or subsequent conviction for a knowing endangerment violation,a
person shall be subject to a fine of not more than$500,000 or by impnsonment of not more than 30 years,or
both.An organization,as defined in section 309(c)(3)(B)(iu)of the CWA,shall,upon conviction of violating
the imminent danger provision,be subject to a fine of not more than$1,000,000 and can be fined up to
$2,000,000 for second or subsequent convictions [40 CFR 122.41(a)(2)]
f Under state law,a civil penalty of not more than$25,000 per violation may be assessed against any person
who violates or fails to act in accordance with the terms,conditions,or requirements of a permit. [North
Carolina General Statutes§ 143-215.6A]
g. Any person may be assessed an administrative penalty by the Administrator for violating section 301,302,
306,307,308,318 or 405 of this Act,or any permit condition or limitation implementing any of such sections
in a permit issued under section 402 of this Act Administrative penalties for Class I violations are not to
exceed$16,000 per violation,with the maximum amount of any Class I penalty assessed not to exceed
$37,500 Penalties for Class II violations are not to exceed$16,000 per day for each day during which the
violation continues,with the maximum amount of any Class II penalty not to exceed$177,500 [33 USC
1319(g)(2)and 40 CFR 122 41(a)(3)]
2 Duty to Mitigate
The Permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in
violation of this permit with a reasonable likelihood of adversely affecting human health or the environment[40
CFR 122 41(d)]
3 Civil and Criminal Liability
Except as provided in permit conditions on"Bypassing" (Part II.C.4),"Upsets"(Part II.C.5)and"Power Failures"
(Part II.0 7),nothing in this permit shall be construed to relieve the Permittee from any responsibilities, liabilities,
or penalties for noncompliance pursuant to NCGS 143-215 3, 143-215.6 or Section 309 of the Federal Act,33 USC
1319.Furthermore,the Permittee is responsible for consequential damages,such as fish kills,even though the
responsibility for effective compliance may be temporarily suspended
4. Oil and Hazardous Substance Liability
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee
from any responsibilities,liabilities,or penalties to which the Permittee is or may be subject to under NCGS 143-
215 75 et seq or Section 311 of the Federal Act,33 USG 1321 Furthermore,the Permittee is responsible for
consequential damages,such as fish kills,even though the responsibility for effective compliance may be
temporarily suspended
5 Property Rights
The issuance of this permit does not convey any property nghts in either real or personal property,or any exclusive
privileges,nor does it authorize any injury to private property or any invasion of personal rights,nor any
infringement of Federal, State or local laws or regulations [40 CFR 122.41(g)].
6. Onshore or Offshore Construction
This permit does not authorize or approve the construction of any onshore or offshore physical structures or
facilities or the undertaking of any work in any navigable waters.
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7 Severability
The provisions of this permit are severable. If any provision of this permit, or the application of any provision of
this permit to any circumstances, is held invalid,the application of such provision to other circumstances,and the
remainder of this permit,shall not be affected thereby [NCGS 150B-23].
8. Duty to Provide Information
The Permittee shall furnish to the Permit Issuing Authority,within a reasonable time,any information which the
Permit Issuing Authority may request to determine whether cause exists for modifying,revoking and reissuing,or
terminating this permit or to determine compliance with this permit.The Permittee shall also furnish to the Permit
Issuing Authority upon request,copies of records required by this permit[40 CFR 122.41(h)].
9 Duty to Reapply
If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit,the
Permittee must apply for and obtain a new permit[40 CFR 122.41(b)]
10. Expiration of Permit
The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to
discharge beyond the expiration date,the Permittee shall submit such information,forms,and fees as are required
by the agency authorized to issue permits no later than 180 days prior to the expiration date unless permission for a
later date has been granted by the Director (The Director shall not grant permission for applications to be
submitted later than the expiration date of the existing permit.) [40 CFR 122 21(d)]Any Permittee that has not
requested renewal at least 180 days prior to expiration,or any Permittee that does not have a permit after the
expiration and has not requested renewal at least 180 days prior to expiration,will subject the Permittee to
enforcement procedures as provided in NCGS 143-215 6 and 33 USC 1251 et.seq
11 Signatory Requirements
All applications,reports,or information submitted to the Permit Issuing Authority shall be signed and certified[40
CFR 122.41(k)]
a. All permit applications shall be signed as follows:
(1) For a corporation. by a responsible corporate officer. For the purpose of this Section,a responsible
corporate officer means: (a)a president,secretary,treasurer or vice president of the corporation in charge
of a principal business function,or any other person who performs similar policy or decision making
functions for the corporation,or(b)the manager of one or more manufacturing,production,or operating
facilities,provided,the manager is authorized to make management decisions which govern the operation
of the regulated facility including having the explicit or implicit duty of making major capital investment
recommendations,and initiating and directing other comprehensive measures to assure long term
environmental compliance with environmental laws and regulations,the manager can ensure that the
necessary systems are established or actions taken to gather complete and accurate information for permit
application requirements; and where authority to sign documents has been assigned or delegated to the
manager in accordance with corporate procedures
(2) For a partnership or sole proprietorship: by a general partner or the proprietor,respectively;or
(3) For a municipality,State,Federal,or other public agency by either a principal executive officer or
ranking elected official [40 CFR 122.22].
b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be
signed by a person described in paragraph a above or by a duly authorized representative of that person.A
person is a duly authorized representative only if:
(1) The authorization is made in writing by a person described above,
(2) The authorization specified either an individual or a position having responsibility for the overall operation
of the regulated facility or activity,such as the position of plant manager,operator of a well or well field,
superintendent,a position of equivalent responsibility,or an individual or position having overall
responsibility for environmental matters for the company (A duly authorized representative may thus be
either a named individual or any individual occupying a named position);and
(3) The written authorization is submitted to the Permit Issuing Authority[40 CFR 122.22]
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c Changes to authorization: If an authorization under paragraph(b)of this section is no longer accurate because
a different individual or position has responsibility for the overall operation of the facility,a new authorization
satisfying the requirements of paragraph(b)of this section must be submitted to the Director prior to or
together with any reports, information,or applications to be signed by an authorized representative [40 CFR
122.22]
d Certification.Any person signing a document under paragraphs a.orb. of this section shall make the following
certification [40 CFR 122.22].NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED:
"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 fines and imprisonment for knowing violations "
12. Permit Actions
This permit may be modified,revoked and reissued,or terminated for cause The filing of a request by the
Permittee for a permit modification,revocation and reissuance,or termination,or a notification of planned changes
or anticipated noncompliance does not stay any permit condition [40 CFR 122 41(f)]
13 Permit Modification,Revocation and Reissuance,or Termination
The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit,
revoking and reissuing the permit,or terminating the permit as allowed by the laws,rules,and regulations
contained in Title 40,Code of Federal Regulations,Parts 122 and 123,Title 15A of the North Carolina
Administrative Code, Subchapter 02H 0100; and North Carolina General Statute 143 215.1 et. al
14 Annual Administering and Compliance Monitoring Fee Requirements
The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being
billed by the Division Failure to pay the fee in a timely manner in accordance with 15A NCAC 02H .0105(b)(2)
may cause this Division to initiate action to revoke the permit.
Section C. Operation and Maintenance of Pollution Controls
1 Certified Operator
Owners of classified water pollution control systems must designate operators,certified by the Water Pollution
Control System Operators Certification Commission(WPCSOCC),of the appropriate type and grade for the
system,and,for each classification must[T15A NCAC 08G .0201]:
a. designate one Operator In Responsible Charge(ORC)who possesses a valid certificate of the type and grade at
least equivalent to the type and grade of the system;
b designate one or more Back-up Operator(s)in Responsible Charge(Back-up ORCs)who possesses a valid
certificate of the type of the system and no more than one grade less than the grade of the system,with the
exception of no backup operator in responsible charge is required for systems whose minimum visitation
requirements are twice per year,and
c submit a signed completed "Water Pollution Control System Operator Designation Form"to the Commission
(or to the local health department for owners of subsurface systems)countersigned by the designated certified
operators,designating the Operator in Responsible Charge(ORC)and the Back-up Operator in Responsible
Charge(Back-up ORC).
(1) 60 calendar days prior to wastewater or residuals being introduced into a new system,or
(2) within 120 calendar days following
> receiving notification of a change in the classification of the system requiring the designation of a new
Operator in Responsible Charge(ORC)and Back-up Operator in Responsible Charge(Back-up ORC)
of the proper type and grade, or
➢ a vacancy in the position of Operator in Responsible Charge(ORC)or Back-up Operator in
Responsible Charge(Back-up ORC).
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(3) within seven calendar days of vacancies in both ORC and Back-up ORC positions replacing or designating
at least one of the responsibilities.
The ORC of each Class I facility(or the Back-up ORC,when acting as surrogate for the ORC)must.
> Visit the facility as often as is necessary to insure proper operation of the treatment system,the treatment
facility must be visited at least weekly
> Comply with all other conditions of 15A NCAC 08G 0204.
The ORC of each Class II,III and IV facility(or the Back-up ORC,when acting as surrogate for the ORC)must
> Visit the facility as often as is necessary to insure proper operation of the treatment system;the treatment
facility must be visited at least five days per week,excluding holidays
> Properly manage and document daily operation and maintenance of the facility
> Comply with all other conditions of 15A NCAC 08G.0204
2. Proper Operation and Maintenance
The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control
(and related appurtenances)which are installed or used by the Permittee to achieve compliance with the conditions
of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropnate quality
assurance procedures.This provision requires the Permittee to install and operate backup or auxiliary facilities only
when necessary to achieve compliance with the conditions of the permit[40 CFR 122 41(e)].
NOTE: Properly and officially designated operators are fully responsible for all proper operation and maintenance
of the facility,and all documentation required thereof,whether acting as a contract operator[subcontractor] or a
member of the Permittee's staff
3. Need to Halt or Reduce not a Defense
It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this permit[40 CFR 122.41(c)].
4 Bypassing of Treatment Facilities
a Bypass not exceeding limitations [40 CFR 122.41(m)(2)]
The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded,but
only if it also is for essential maintenance to assure efficiNt operation.These bypasses are not subject to the
provisions of Paragraphs b and c of this section.
b. Notice[40 CFR 122.41(m)(3)]
(1) Anticipated bypass If the Permittee knows in advance of the need for a bypass,it shall submit prior notice,
if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality
and effect of the bypass.
(2) Unanticipated bypass The Permittee shall submit notice of an unanticipated bypass as required in Part
II.E.6.(24-hour notice).
c. Prohibition of Bypass
(1) Bypass from the treatment facility is prohibited and the Permit Issuing Authonty may take enforcement
action against a Permittee for bypass,unless
(A) Bypass was unavoidable to prevent loss of life,personal injury or severe property damage,
(B) There were no feasible alternatives to the bypass,such as the use of auxiliary treatment facilities,
retention of untreated wastes or maintenance dunng normal periods of equipment downtime This
condition is not satisfied if adequate backup equipment should have been installed in the exercise of
reasonable engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance,and
(C) The Permittee submitted notices as required under Paragraph b. of this section.
(2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for a bypass as provided in any current or future system-wide collection system
permit associated with the treatment facility.
•
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(3) The Permit Issuing Authority may approve an anticipated bypass,after considering its adverse effects, if
the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c
(1)of this section.
5. Upsets
a. Effect of an upset[40 CFR 122.41(n)(2)]. An upset constitutes an affirmative defense to an action brought for
noncompliance with such technology based permit effluent limitations if the requirements of paragraph b of
this condition are met.No determination made during administrative review of claims that noncompliance was
caused by upset,and before an action for noncompliance, is final administrative action subject to judicial
review.
b Conditions necessary for a demonstration of upset Any Permittee who wishes to establish the affirmative
defense of upset shall demonstrate,through properly signed,contemporaneous operating logs,or other relevant
evidence that.
(1)An upset occurred and that the Permittee can identify the cause(s) of the upset,
(2)The Permittee facility was at the time being properly operated; and
(3)The Permittee submitted notice of the upset as required in Part II E 6(b)of this permit.
(4)The Permittee complied with any remedial measures required under Part II.B 2.of this permit
c. Burden of proof[40 CFR 122.41(n)(4)]. The Permittee seeking to establish the occurrence of an upset has
the burden of proof in any enforcement proceeding
6. Removed Substances
Solids, sludges,filter backwash,or other pollutants removed in the course of treatment or control of wastewaters
shall be utilized/disposed of in accordance with NCGS 143-215 1 and in a manner such as to prevent any pollutant
from such materials from entering waters of the State or navigable waters of the United States except as permitted
by the Commission The Permittee shall comply with all applicable state and Federal regulations governing the
disposal of sewage sludge,including 40 CFR 503, Standards for the Use and Disposal of Sewage Sludge,40 CFR
Part 258,Criteria For Municipal Solid Waste Landfills; and 15A NCAC Subchapter 2T, Waste Not Discharged To
Surface Waters.The Permittee shall notifii the Permit Issuing Authority of any significant change in its sludge use
or disposal practices.
7. Power Failures
The Permittee is responsible for maintaining adequate safeguards (as required by 15A NCAC 02H 0124)to
prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means
of alternate power sources,standby generators or retention of inadequately treated effluent.
Section D. Monitoring and Records
1. Representative Sampling
Samples collected and measurements taken,as required herein,shall be representative of the permitted discharge
Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the
discharge for the period the sample represents.All samples shall be taken at the monitoring points specified in this
permit and,unless otherwise specified,before the effluent joins or is diluted by any other wastestream, body of
water,or substance. Monitoring points shall not be changed without notification to and the approval of the Permit
Issuing Authority [40 CFR 122.41(j)]
2. Reporting
Monitoring results obtained during the previous month(s)shall be summarized for each month and reported on a
monthly Discharge Monitoring Report(DMR)Form(MR 1, 1.1,2,3)or alternative forms approved by the
Director,postmarked no later than the last calendar day of the month following the completed reporting period.
The first DMR is due on the last day of the month following the issuance of the permit or in the case of a new
facility,on the last day of the month following the commencement of discharge. Duplicate signed copies of these,
and all other reports required herein,shall be submitted to the following address-
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NC DEQ/Division of Water Resources/Water Quality Permitting Section
ATTENTION:Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
3. Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected
and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges The
devices shall be installed,calibrated and maintained to ensure that the accuracy of the measurements is consistent
with the accepted capability of that type of device.Devices selected shall be capable of measuring flows with a
maximum deviation of less than 10%from the true discharge rates throughout the range of expected discharge
volumes Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained
to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device
The Director shall approve the flow measurement device and monitoring location prior to installation
Once-through condenser cooling water flow monitored by pump logs,or pump hour meters as specified in Part I of
this permit and based on the manufacturer's pump curves shall not be subject to this requirement.
4 Test Procedures
Laboratories used for sample analysis must be certified by the Division.Permittees should contact the Division's
Laboratory Certification Section(919 733-3908)or visit https//deq.nc.gov/about/divisions/water-resources/water-
resources-data/water-sciences-home-page/laboratory-certification-branch for information regarding laboratory
certifications
Facilities whose personnel are conducting testing of field-certified parameters only must hold the appropnate field
parameter laboratory certifications
Test procedures for the analysis of pollutants shall conform to the EMC regulations(published pursuant to NCGS
143-215.63 et. seq.),the Water and Air Quality Reporting Acts,and to regulations published pursuant to Section
304(g),33 USC 1314,of the CWA(as amended),and 40 CFR 136,or in the case of sludge use or disposal,
approved under 40 CFR 136,unless otherwise specified in 40 CFR 503,unless other test procedures have been
specified in this permit[40 CFR 122 41].
To meet the intent of the monitonng required by this permit,all test procedures must produce minimum detection
and reporting levels that are below the permit discharge requirements and all data generated must be reported down
to the minimum detection or lower reporting level of the procedure If no approved methods are determined
capable of achieving minimum detection and reporting levels below permit discharge requirements,then the most
sensitive(method with the lowest possible detection and reporting level)approved method must be used.
5. Penalties for Tampenng
The CWA provides that any person who falsifies,tampers with,or knowingly renders inaccurate,any monitonng
device or method required to be maintained under this permit shall,upon conviction,be punished by a fine of not
more than$10,000 per violation,or by imprisonment for not more than two years per violation,or by both.If a
conviction of a person is for a violation committed after a first conviction of such person under this paragraph,
punishment is a fine of not more than$20,000 per day of violation, or by impnsonment of not more than 4 years,
or both [40 CFR 122.41]
6 Records Retention
Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use
and disposal activities,which shall be retained for a period of at least five years(or longer as required by 40 CFR
503),the Permittee shall retain records of all monitoring information,including.
> all calibration and maintenance records
➢ all original strip chart recordings for continuous monitoring instrumentation
> copies of all reports required by this permit
> copies of all data used to complete the application for this permit
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These records or copies shall be maintained for a period of at least 3 years from the date of the sample,
measurement,report or application.This period may be extended by request of the Director at any time [40 CFR
122.41]
7. Recording Results
For each measurement or sample taken pursuant to the requirements of this permit,the Permittee shall record the
following information [40 CFR 122.41]:
a. The date,exact place,and time of sampling or measurements;
b. The individual(s)who performed the sampling or measurements;
c The date(s)analyses were performed;
d The individual(s)who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses
8 Inspection and Entry
The Permittee shall allow the Director,or an authorized representative(including an authorized contractor acting as
a representative of the Director),upon the presentation of credentials and other documents as may be required by
law,to;
a. Enter,at reasonable times,upon the Permittee's premises where a regulated facility or activity is located or
conducted,or where records must be kept under the conditions of this permit,
b. Have access to and copy,at reasonable times,any records that must be kept under the conditions of this permit,
c. Inspect at reasonable times any facilities,equipment(including monitoring and control equipment),practices,
or operations regulated or required under this permit;and
d Sample or monitor at reasonable times,for the purposes of assuring permit compliance or as otherwise
authorized by the CWA,any substances or parameters at any location[40 CFR 122.41(i)].
Section E Reporting Requirements
.1. Change in Discharge
All discharges authonzed herein shall be consistent with the terms and conditions of this permit The discharge of
any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute
a violation of the permit.
2 Planned Changes
The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions
to the permitted facility [40 CFR 122.41(1)] Notice is required only when:
a The alteration or addition to a permitted facility may meet one of the cnteria for new sources at 40 CFR
122 29(b);or
b The alteration or addition could significantly change the nature or increase the quantity of pollutants
discharged.This notification applies to pollutants subject neither to effluent limitations in the permit,nor to
notification requirements under 40 CFR 122.42(a)(1),or
c The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices,and
such alteration,addition or change may justify the application of permit conditions that are different from or
absent in the existing permit,including notification of additional use or disposal sites not reported during the
permit application process or not reported pursuant to an approved land application plan.
3 Anticipated Noncompliance
The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other
activities that might result in noncompliance with the permit[40 CFR 122.41(1)(2)].
4 Transfers
This permit is not transferable to any person without prior written notice to and approval from the Director in
accordance with 40 CFR 122.61 The Director may condition approval in accordance with NCGS 143-215.1, in
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particular NCGS 143-215.1(b)(4)b.2., and may require modification or revocation and reissuance of the permit,or
a minor modification,to identify the new permittee and incorporate such other requirements as may be necessary
under the CWA [40 CFR 122.41(1)(3), 122.61]or state statute.
5. Monitoring Reports
Monitoring results shall be reported at the intervals specified elsewhere in this permit[40 CFR 122.41(1)(4)]
a. Monitoring results must be reported on a Discharge Monitoring Report(DMR)(See Part II D 2)or forms
provided by the Director for reporting results of monitoring of sludge use or disposal practices.
b. If the Permittee monitors any pollutant more frequently than required by this permit using test procedures
approved under 40 CFR Part 136 and at a sampling location specified in this permit or other appropriate
instrument governing the discharge,the results of such monitoring shall be included in the calculation and
reporting of the data submitted on the DMR
6 Twenty-four Hour Reporting
a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that
potentially threatens public health or the environment Any information shall be provided orally within 24
hours from the time the Permittee became aware of the circumstances.A written submission shall also be
provided within 5 days of the time the Permittee becomes aware of the circumstances.The written submission
shall contain a description of the noncompliance,and its cause;the period of noncompliance,including exact
dates and times,and if the noncompliance has not been corrected,the anticipated time it is expected to
continue,and steps taken or planned to reduce,eliminate,and prevent reoccurrence of the noncompliance[40
CFR 122 41(1)(6)].
b The Director may waive the written report on a case-by-case basis for reports under this section if the oral
report has been received within 24 hours
c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response
personnel at(800) 858-0368 or(919)733-3300.
7. Other Noncompliance
The Permittee shall report all instances of noncompliance not reported under Part II.E.5 and 6.of this permit at the
time monitoring reports are submitted.The reports shall contain the information listed in Part II.E 6 of this permit
[40 CFR 122 41(1)(7)].
8 Other Information
Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application,or submitted
incorrect information in a permit application or in any report to the Director,it shall promptly submit such facts or
information [40 CFR 122 41(1)(8)].
9 Noncompliance Notification
The Permittee shall report by telephone to either the central office or the appropriate regional office of the Division
as soon as possible,but in no case more than 24 hours or on the next working day following the occurrence or first
knowledge of the occurrence of any of the following
a Any occurrence at the water pollution control facility which results in the discharge of significant amounts of
wastes which are abnormal in quantity or characteristic,such as the dumping of the contents of a sludge
digester,the known passage of a slug of hazardous substance through the facility;or any other unusual
circumstances.
b Any process unit failure,due to known or unknown reasons,that render the facility incapable of adequate
wastewater treatment such as mechanical or electrical failures of pumps,aerators,compressors,etc.
c Any failure of a pumping station,sewer line,or treatment facility resulting in a by-pass without treatment of all
or any portion of the influent to such station or facility.
Persons reporting such occurrences by telephone shall also file a written report within 5 days following first
knowledge of the occurrence.Also see reporting requirements for municipalities in Part IV C 2.c of this permit.
10. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3 (a)(2)or Section 308 of the Federal Act,33
USC 1318,all reports prepared in accordance with the terms shall be available for public inspection at the offices
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of the Division As required by the Act,effluent data shall not be considered confidential Knowingly making any
false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143-
215.1(b)(2)or in Section 309 of the Federal Act
11. Penalties for Falsification of Reports
The CWA provides that any person who knowingly makes any false statement,representation,or certification in
any record or other document submitted or required to be maintained under this permit, including monitoring
reports or reports of compliance or noncompliance shall,upon conviction,be punished by a fine of not more than
$25,000 per violation, or by imprisonment for not more than two years per violation, or by both [40 CFR 122.41]
12 Annual Performance Reports
Permittees who own or operate facilities that primarily collect or treat municipal or domestic wastewater and have
an average annual flow greater than 200,000 gallons per day shall provide an annual report to the Permit Issuing
Authority and to the users/customers served by the Permittee(NCGS 143-215.1 C) The report shall summarize the
performance of the collection or treatment system,as well as the extent to which the facility was compliant with
applicable Federal or State laws,regulations and rules pertaining to water quality The report shall be provided no
later than sixty days after the end of the calendar or fiscal year,depending upon which annual period is used for
evaluation.
The report shall be sent to.
NC DEQ/Division of Water Resources/Water Quality Permitting Section 1
ATTENTION. Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
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PART III
OTHER REQUIREMENTS
Section A. Construction
a. The Permittee shall not commence construction of wastewater treatment facilities,nor add to the plant's treatment
capacity,nor change the treatment process(es)utilized at the treatment plant unless(1)the Division has issued an
Authorization to Construct(AtC)permit or(2)the Permittee is exempted from such AtC permit requirements
under Item b of this Section.
b. In accordance with NCGS 143-215.1(a5) [SL 201 1-394],no permit shall be required to enter into a contract for the
construction,installation,or alteration of any treatment work or disposal system or to construct,install,or alter any
treatment works or disposal system within the State when the system's or work's principle function is to conduct,
treat,equalize,neutralize,stabilize,recycle,or dispose of industrial waste or sewage from an industrial facility and
the discharge of the industrial waste or sewage is authonzed under a permit issued for the discharge of the
industrial waste or sewage into the waters of the State. Notwithstanding the above,the permit issued for the
discharge may be modified if required by federal regulation.
c Issuance of an AtC will not occur until Final Plans and Specifications for the proposed construction have been
submitted by the Permittee and approved by the Division.
Section B. Groundwater Monitoring
The Permittee shall,upon written notice from the Director,conduct groundwater monitonng as may be required to
determine the compliance of this NPDES permitted facility with the current groundwater standards.
Section C. Changes in Discharges of Toxic Substances
The Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe(40 CFR 122.42):
a. That any activity has occurred or will occur which would result in the discharge,on a routine or frequent basis,of
any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following
"notification levels";
(1) One hundred micrograms per liter(100 µg/L);
(2) Two hundred micrograms per liter(200 µg/L)for acrolein and acrylonitrile,five hundred micrograms per liter
(500 µg/L)for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol,and one milligram per liter(1 mg/L)for
antimony,
(3) Five times the maximum concentration value reported for that pollutant in the permit application.
b. That any activity has occurred or will occur which would result in any discharge,on a non-routine or infrequent
basis,of a toxic pollutant which is not limited in the permit,if that discharge will exceed the highest of the
following"notification levels";
(1) Five hundred micrograms per liter(500 µg/L);
(2) One milligram per liter(1 mg/L)for antimony;
(3) Ten times the maximum concentration value reported for that pollutant in the permit application.
Section D. Facility Closure Requirements
The Permittee must notify the Division at least 90 days prior to the closure of any wastewater treatment system covered
by this permit The Division may require specific measures during deactivation of the system to prevent adverse
impacts to waters of the State This permit cannot be rescinded while any activities requiring this permit continue at the
permitted facility.
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PART IV
SPECIAL CONDITIONS FOR MUNICIPAL FACILITIES
Section A. Definitions
In addition to the definitions in Part II of this permit,the following definitions apply to municipal facilities:
Indirect Discharge or Industrial User
Any non-domestic source that discharges wastewater containing pollutants into a POTW regulated under section
307(b),(c)or(d)of the CWA. [40 CFR 403 3 (i) and(1)and 15A NCAC 02H .0903(b)(11)]
Interference
Inhibition or disruption of the POTW treatment processes; operations;or its sludge process,use,or disposal which
causes or contributes to a violation of any requirement of the Permittee's(or any satellite POTW's if different from the
Permittee)NPDES,collection system,or non-discharge permit or prevents sewage sludge use or disposal in
compliance with specified applicable State and Federal statutes,regulations,or permits [15A NCAC 02H
0903(b)(14)]
Pass Through
A discharge which exits the POTW into waters of the State in quantities or concentrations which,alone or with
discharges from other sources,causes a violation,including an increase in the magnitude or duration of a violation,of
the Permittee's(or any satellite POTW's, if different from the Permittee)NPDES,collection system,or non-discharge
permit [15A NCAC 02H .0903(b)(23)]
Publicly Owned Treatment Works(POTW)
A treatment works as defined by Section 212 of the CWA,which is owned by a State or local government organization.
This definition includes any devices and systems used in the storage,treatment,recycling and reclamation of municipal
sewage or industrial wastes of a liquid nature It also includes the collection system, as defined in 15A NCAC 2T
.0402,only if it conveys wastewater to a POTW treatment plant.The term also means the local government
organization,or municipality,as defined in section 502(4)of the CWA,which has junsdiction over indirect discharges
to and the discharges from such a treatment works.In this context,the organization may be the owner of the POTW
treatment plant or the owner of the collection system into which an indirect discharger discharges This second type of
POTW may be referred to as a"satellite POTW organization " [15A NCAC 02H 0903(b)(26)]
"Significant Industrial User" or"SIU"
An Industrial User that discharges wastewater into a publicly owned treatment works and that[15A NCAC 02H
.0903(b)(33)]
1. Discharges an average of 25,000 gallons per day or more of process wastewater to the POTW(excluding sanitary,
noncontact cooling and boiler blowdown wastewaters);or
2 Contributes process wastewater which makes up five percent or more of the NPDES or non-discharge permitted
flow limit or organic capacity of the POTW treatment plant In this context,organic capacity refers to BOD,TSS
and ammonia;or
3 Is subject to categorical standards under 40 CFR Part 403.6 and 40 CFR Parts 405-471;or
4. Is designated as such by the Permittee on the basis that the Industrial User has a reasonable potential for adversely
affecting the POTW's operation or for violating any pretreatment standard or requirement,or the POTW's effluent
limitations and conditions in its NPDES or non-discharge permit,or to limit the POTW's sludge disposal options;
5. Subject to approval under 15A NCAC 02H .0907(b),the Permittee may determine that an Industrial User meeting
the criteria in paragraphs I or 2 of this definition above has no reasonable potential for adversely affecting the
POTW's operation or for violating any pretreatment standard or requirement,the POTW's effluent limitations and
conditions in its NPDES or non-discharge permit, or to limit the POTW's sludge disposal options,and thus is not a
Significant Industrial User(SIU);or
6. Subject to approval under 15A NCAC 02H 0907(b),the Permittee may determine that an Industrial User meeting
the criteria in paragraph 3 of this definition above meets the requirements of 40 CFR Part 403.3(v)(2)and thus is a
non-significant categorical Industrial User.
Section B. Publicly Owned Treatment Works (POTWs)
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All POTWs must provide adequate notice to the Director of the following[40 CFR 122 42(b)]:
1. Any new introduction of pollutants into the POTW from an indirect discharger,regardless of the means of
transport,which would be subject to section 301 or 306 of CWA if it were directly discharging those pollutants;
and
2 Any substantial change in the volume or character of pollutants being introduced by an indirect discharger as
influent to that POTW at the time of issuance of the permit.
3 For purposes of this paragraph,adequate notice shall include information on(1)the quality and quantity of effluent
introduced into the POTW,and(2)any anticipated impact that may result from the change of the quantity or
quality of effluent to be discharged from the POTW
Section C. Municipal Control of Pollutants from Industrial Users.
1. Effluent limitations are listed in Part I of this permit.Other pollutants attnbutable to inputs from Industrial Users
discharging to the POTW may be present in the Permittee's discharge.At such time as sufficient information
becomes available to establish limitations for such pollutants,this permit may be revised to specify effluent
limitations for any or all of such other pollutants in accordance with best practicable technology or water quality
standards.
2 Prohibited Discharges
a The Permittee shall develop and enforce their Pretreatment Program to implement the prohibition against the
introduction of pollutants or discharges into the waste treatment system or waste collection system which
cause or contnbute to Pass Through or Interference as defined in 15A NCAC 02H 0900 and 40 CFR 403. [40
CFR 403 5(a)(1)]
b. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibitions against the
introduction of the following wastes in the waste treatment or waste collection system [40 CFR 403 5(b)]:
(1) Pollutants which create a fire or explosion hazard in the POTW, including,but not limited to,
wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade
using the test methods specified in 40 CFR 261 21,
(2) Pollutants which cause corrosive structural damage to the POTW,but in no case discharges with pH lower
than 5.0,unless the works is specifically designed to accommodate such discharges;
(3) Solid or viscous pollutants in amounts which cause obstruction to the flow in the POTW resulting in
Interference,
(4) Any pollutant, including oxygen demanding pollutants(BOD,etc.)released in a Discharge at a flow rate
and/or pollutant concentration which will cause Interference with the POTW,
(5) Heat in amounts which will inhibit biological activity in the POTW resulting in Interference,but in no
case heat in such quantities that the temperature at the POTW Treatment Plant exceeds 40°C(104°F)
unless the Division,upon request of the POTW,approves alternate temperature limits,
(6) Petroleum oil,non-biodegradable cutting oil,or products of mineral oil origin in amounts that will cause
Interference or Pass Through;
(7) Pollutants which result in the presence of toxic gases,vapors,or fumes within the POTW in a quantity that
may cause acute worker health and safety problems,or
(8) Any trucked or hauled pollutants,except at discharge points designated by the POTW
c. The Permittee shall investigate the source of all discharges into the POTW, including slug loads and other
unusual discharges,which have the potential to adversely impact the Permittee's Pretreatment Program and/or
the operation of the POTW.
The Permittee shall report such discharges into the POTW to the Director or the appropriate Regional Office.
Any information shall be provided orally within 24 hours from the time the Permittee became aware of the
circumstances.A written submission shall also be provided within 5 days of the time the Permittee becomes
aware of the circumstances.The written submission shall contain a description of the discharge,the
investigation into possible sources,the period of the discharge,including exact dates and times;if the
discharge has not ceased,the anticipated time it is expected to continue; and steps taken or planned to reduce,
eliminate,and prevent reoccurrence of the noncompliance,
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