NC0026557_Fact Sheet_20240416

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Fact Sheet
NPDES Permit No. NC0026557
Permit Writer/Email Contact: Nick Coco, [e-mail]
Date: 4/11/2024
Division/Branch: NC Division of Water Resources/NPDES Municipal Permitting
Fact Sheet Template: Version 09Jan2017

Permitting Action:
☐ Renewal
☒ Renewal with Expansion
☐ New Discharge
☐ Modification (Fact Sheet should be tailored to mod request)

Note: A complete application should include the following:
• For New Dischargers, EPA Form 2A or 2D requirements, Engineering Alternatives Analysis, Fee
• For Existing Dischargers (POTW), EPA Form 2A, 3 effluent pollutant scans, 4 2nd species WET
tests.
• For Existing Dischargers (Non-POTW), EPA Form 2C with correct analytical requirements based
on industry category.
Complete applicable sections below. If not applicable, enter NA.

1. Basic Facility Information
Facility Information
Applicant/Facility Name: Town of Bryson City/Bryson City Wastewater Treatment Plant (WWTP)
Applicant Address: 315 Riverview Road (NCSR 1151), Bryson City, NC 28713
Facility Address: 45 Everett Street, Bryson City, NC 28713
Permitted Flow: 0.6 MGD with proposed expansion to 0.9 MGD
Facility Type/Waste: MAJOR Municipal; 100% domestic
Facility Class: Grade III Biological Water Pollution Control System
Treatment Units: mechanical bar Screen, two (2) contact stabilization treatment units consisting
of influent pumping, aeration and reaeration zones, secondary clarifiers and
sludge digester, belt press and sludge dry storage, chlorination,
dechlorination
Pretreatment Program (Y/N) N
County: Swain
Region Asheville
Briefly describe the proposed permitting action and facility background: The Town of Bryson City
originally applied on February 3, 2023 for an NPDES permit renewal at 0.6 MGD for the Bryson City
WWTP, with a request for a proposed expansion tier at 1.2 MGD. Speculative Limits were prepared for
the 1.2 MGD tier on March 28, 2023. After review of State Demographer residential data and further
discussion with the Town, it was determined that a more appropriate expansion flow tier is 0.9 MGD. The
Town provided a revised request for the 0.9 MGD flow tier on February 7, 2024. The newly proposed 0.9
MGD expansion project is receiving funding via the American Rescue Plan Act (ARPA). An Engineering
Alternatives Analysis was submitted with the application. Flow projections and engineering alternatives
are discussed in detail below in Antidegradation Review. This facility serves a population of
approximately 1,600 residents. Treated domestic wastewater is discharged via Outfall 001 into the
Tuckasegee River, a class B waterbody in the Little Tennessee River Basin.

Inflow and Infiltration (I/I): In their application, the Town indicated that the facility is experiencing
approximately 0.245 MGD of I/I. The Town is currently conducting a large scale collection system
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rehabilitation project which includes monitoring of I/I, CCTV and smoke testing of the collection system,
at risk line identification and repair/rehabilitation.

Sludge disposal: Sludge is currently dewatered with a belt press and disposed of at the R&B Landfill in
Homer, GA.

2. Receiving Waterbody Information:
Receiving Waterbody Information
Outfalls/Receiving Stream(s): Outfall 001 – Tuckasegee River
Stream Segment: 2-79-(40.5)
Stream Classification: B
Drainage Area (mi2): 654*
Summer 7Q10 (cfs) 358*
Winter 7Q10 (cfs): 417*
30Q2 (cfs): 637*
Average Flow (cfs): 1555*
IWC (% effluent): 0.25% at 0.6 MGD; 0.4% at proposed 0.9 MGD*
2022 303(d) listed/parameter: Not listed
Subject to TMDL/parameter: Yes- State wide Mercury TMDL implementation
Basin/HUC: Little Tennessee River/060102030405
USGS Topo Quad: F5NW
*Based on updated USGS stream statistics provided on September 2, 2021 (attached).

3. Effluent Data Summary
Effluent data for Outfall 001 is summarized below for the period of June 2019 through November 2023.
Table 1. Effluent Data Summary Outfall 001
Parameter Units Average Max Min Permit Limit
Flow MGD 0.49 1.45 0.0351 MA 0.6
BOD mg/l 15.7 112 < 2 WA 45.0
MA 30.0
NH3N mg/l 6.0 21 0.2 Monitor &
Report
TSS mg/l 9.6 29.8 2.5 WA 45.0
MA 30.0
pH SU 7.1 7.5 6.8 6.0 ≥ pH ≤
9.0
Fecal coliform #/100 ml (geomean)
11
232 3
(geometric)
WA 400
MA 200
Temperature ° C 17.9 27.4 6.5 Monitor &
Report
Total Residual Chlorine ug/l 10 10 6.8 DM 28
Total Nitrogen (TN) mg/l 9.6 31.6 2.5 Monitor &
Report
Total Phosphorus (TP) mg/l 1.4 5 0.19 Monitor &
Report
MA-Monthly Average, WA-Weekly Average, DM-Daily Maximum, DA=Daily Average
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The facility also reported effluent dissolved oxygen for the period reviewed, which ranged from 2.1 mg/L
to 8.4 mg/L with an average of 5.6 mg/L.
4. Instream Data Summary
Instream monitoring may be required in certain situations, for example: 1) to verify model predictions
when model results for instream DO are within 1 mg/l of instream standard at full permitted flow; 2) to
verify model predictions for outfall diffuser; 3) to provide data for future TMDL; 4) based on other
instream concerns. Instream monitoring may be conducted by the Permittee, and there are also
Monitoring Coalitions established in several basins that conduct instream sampling for the Permittee (in
which case instream monitoring is waived in the permit as long as coalition membership is maintained).
If applicable, summarize any instream data and what instream monitoring will be proposed for this
permit action: The current permit requires instream monitoring for total nitrogen and total phosphorous
upstream at least 100 feet above the discharge and downstream at least 300 feet below the discharge.
Instream monitoring for nutrients was added during the 2018 renewal to investigate sources of nutrients in
the Tuckasegee River and to better understand the cause of algal blooms in Fontana Lake.
Instream data were analyzed for the period of June 2019 through November 2023 and have been
summarized in Table 3 below.
Table 3. Instream Monitoring Data Summary
Parameter Units Upstream Downstream
Average Min Max Average Min Max
TP mg/l 0.06 0.5 0.0062 0.09 0.5 0.05
TN mg/l 0.5 0.91 0.061 0.5 0.98 0.08
Students t-tests were run at a 95% confidence interval to analyze relationships between upstream
and downstream samples. A statistically significant difference is determined when the t-test p-value
result is < 0.05.
It was concluded that no statistically significant difference exists between upstream and downstream TN
or TP. As the facility is pursuing expansion, the monitoring requirement has been maintained to track the
impact of additional loading from this facility downstream.
Is this facility a member of a Monitoring Coalition with waived instream monitoring (Y/N): NO
Name of Monitoring Coalition: N/A
5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): The facility reported 4 flow
limit violations and 2 BOD limit violations resulting in enforcement in 2019. In 2020, the facility reported
6 flow limit violations and 10 BOD limit violations resulting in enforcement. The facility reported 2 flow
limit violations resulting in enforcement in 2021. In 2023, the facility reported 3 BOD limit violations
resulting in enforcement.
Summarize the compliance record with aquatic toxicity test limits and any second species test results
(past 5 years): The current permit does not require whole effluent toxicity (WET) testing be conducted at
the Bryson City WWTP. As the facility is less than 1.0 MGD, including at the proposed expansion tier,
and discharges 100% domestic, no change has been made to WET requirements.
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Summarize the results from the most recent compliance inspection: The last facility inspection conducted
in February 2021 reported that the facility was not compliant with NPDES permit NC0026557. The
Asheville Regional Office noted the following compliance issues:
• Bar Screen: The bar screens are not functioning adequately to maintain continuous facility
compliance. Significant solids are passing through the headworks and interfering with other
components of the facility and negatively impacting the effluent. The screens also require
constant manual cleaning and are a significant maintenance burden to staff, as well as a possible
hygiene hazard. Replacement of the bar screens should be made a priority during plant upgrades.
• Aeration Basins: The BORC had measured settleability prior to the inspection and the results
were as follows: aeration basin from WWTP #1 - 50% and aeration basin from WWTP #2 - 65%.
Settleability is not as good in WWTP #2, which could be a result of the return pump not properly
working in WWTP #2. The ORC stated that the MLSS is maintained around 3,000-4,000 mg/L.
DO varied in both aeration basins, and levels were too low in aeration basin #2 at 0.20-0.22
mg/L. The ORC will need to adjust the blowers in the aeration basin of WWTP #2 and/or replace
blowers as necessary.
• Secondary Clarifiers: The center wells in both WWTP #1 and WWTP #2 clarifiers had a buildup
of solids and other floating debris that should have been removed with the bar screen. Floating
sludge was visible in both clarifiers. Debris was noted accumulating in areas of the weir teeth, so
it is recommended to increase their cleaning frequency.
• RAS Pump: The ORC discovered a hole in the return sludge pipe of WWTP #2 a couple weeks
ago. The ORC stated they were waiting for parts to come in and in the meantime have another
pump in the #2 secondary clarifier to return sludge. The ORC has a plan to drawdown the #2
aeration basin since the RAS pipe is submerged underwater. The unused digester (currently a
surge tank) of WWTP #2 will then be used as a temporary aeration basin while the repair is being
made.
• Chlorine Contact Chamber: The chlorine contact chamber had a sludge blanket of 1.5 feet out of
5 feet. The ORC stated that the chamber gets cleaned out monthly, but this frequency appears to
not be enough due to the sludge blanket level and floating solids. It is recommended to clean out
the chlorine contact chamber more frequently. Additionally, the vegetation around the chamber
was overgrown and needs to be maintained.
• Effluent Sampling: During the inspection, the composite sampler would not turn on. Determine if
the sampler can be repaired, and if not, a new composite sampler should be purchased. We could
not determine whether or not the sampler was set to be flow proportional since it would not turn
on, nor could we determine the sampling aliquots. Additionally, the thermometer was broken and
needs to be replaced.
• Flow Measurement - Effluent: The effluent weir plate is breaking loose from the concrete. This
issue needs to be fixed immediately to ensure flow can continually be measured.

The proposed improvements as part of the 0.9 MGD expansion will address the compliance issues.

6. Water Quality-Based Effluent Limitations (WQBELs)
The Division provided speculative limits for an expansion to 1.2 MGD on March 28, 2023. While the
review of flow demand only justified an expansion to 0.9 MGD, the proposed limits, shown below, are
considered protective at the lower 0.9 MGD flow tier and are proposed to be implemented in the permit,
with the exception of effluent toxicity testing.
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See Toxicity Testing Limitations for more information regarding toxicity requirements.
Dilution and Mixing Zones
In accordance with 15A NCAC 2B.0206, the following streamflows are used for dilution considerations
for development of WQBELs: 1Q10 streamflow (acute Aquatic Life); 7Q10 streamflow (chronic Aquatic
Life; non-carcinogen HH); 30Q2 streamflow (aesthetics); annual average flow (carcinogen, HH).
If applicable, describe any other dilution factors considered (e.g., based on CORMIX model results): NA
If applicable, describe any mixing zones established in accordance with 15A NCAC 2B.0204(b): NA
Oxygen-Consuming Waste Limitations
Limitations for oxygen-consuming waste (e.g., BOD) are generally based on water quality modeling to
ensure protection of the instream dissolved oxygen (DO) water quality standard. Secondary TBEL limits
(e.g., BOD= 30 mg/l for Municipals) may be appropriate if deemed more stringent based on dilution and
model results.
If permit limits are more stringent than TBELs, describe how limits were developed: The current permit
limitations for BOD are TBELs. The Division reviewed the use of TBELs at this facility during
preparation of speculative limits for an expansion to 1.2 MGD and found them to be protective. As such,
TBELs are considered protective at the existing 0.6 MGD flow tier and at the proposed 0.9 MGD
expansion tier.
Ammonia and Total Residual Chlorine Limitations
Limitations for ammonia are based on protection of aquatic life utilizing an ammonia chronic criterion of
1.0 mg/l (summer) and 1.8 mg/l (winter). Acute ammonia limits are derived from chronic criteria,
utilizing a multiplication factor of 3 for Municipals and a multiplication factor of 5 for Non-Municipals.
Limitations for Total Residual Chlorine (TRC) are based on the NC water quality standard for protection
of aquatic life (17 ug/l) and capped at 28 ug/l (acute impacts). Due to analytical issues, all TRC values
reported below 50 ug/l are considered compliant with their permit limit.
Describe any proposed changes to ammonia and/or TRC limits for this permit renewal: The current
permit limits TRC at a daily maximum of 28 µg/L. This limit has been reviewed in the attached WLA and
found to be protective at both the existing 0.6 MGD and proposed 0.9 MGD flow tiers.
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The current permit does not set limitations for ammonia. Due to the existence of endangered species
identified in the discharge area, site-specific ammonia requirements were considered. Site-specific
calculations were conducted to evaluate the expanded discharge considering Ambient Monitoring System
(AMS) Station G8600000 (located approximately 1.2 miles above the discharge) and submitted effluent
pH and temperature data. As the allowable discharge concentrations for ammonia in the winter and
summer are both greater than 35 mg/L at both the 0.6 MGD and proposed 0.9 MGD flow tiers, only
monitoring is required.
Reasonable Potential Analysis (RPA) for Toxicants
As this facility discharge is currently permitted at existing and future flows of less than 1.0 MGD and has
no pretreatment program, no effluent pollutant scan is required. Due to the lack of data, no reasonable
potential analysis could be conducted. While the facility is pursuing expansion, the expanded flow will
remain less than 1.0 MGD in permitted capacity. As such, no effluent pollutant scan is required.
Toxicity Testing Limitations
Permit limits and monitoring requirements for Whole Effluent Toxicity (WET) have been established in
accordance with Division guidance (per WET Memo, 8/2/1999). Per WET guidance, all NPDES permits
issued to Major facilities or any facility discharging “complex” wastewater (contains anything other than
domestic waste) will contain appropriate WET limits and monitoring requirements, with several
exceptions. The State has received prior EPA approval to use an Alternative WET Test Procedure in
NPDES permits, using single concentration screening tests, with multiple dilution follow-up upon a test
failure.
Describe proposed toxicity test requirement: Speculative limits were provided by the Division to the
Town of Bryson City for an expansion to 1.2 MGD on March 28, 2023. Review of flow demand only
justified an expansion to 0.9 MGD. As such the facility will remain a 100% domestic Minor discharger
after expansion, the proposed Acute WET testing requirement at 90% effluent using Ceriodaphnia dubia
intended for the 1.2 MGD expansion tier is not required and has not been added to the permit.
Mercury Statewide TMDL Evaluation
There is a statewide TMDL for mercury approved by EPA in 2012. The TMDL target was to comply
with EPA’s mercury fish tissue criteria (0.3 mg/kg) for human health protection. The TMDL established a
wasteload allocation for point sources of 37 kg/year (81 lb/year), and is applicable to municipals and
industrial facilities with known mercury discharges. Given the small contribution of mercury from point
sources (~2% of total load), the TMDL emphasizes mercury minimization plans (MMPs) for point source
control. Municipal facilities > 2 MGD and discharging quantifiable levels of mercury (>1 ng/l) will
receive an MMP requirement. Industrials are evaluated on a case-by-case basis, depending if mercury is a
pollutant of concern. Effluent limits may also be added if annual average effluent concentrations exceed
the WQBEL value (based on the NC WQS of 12 ng/l) and/or if any individual value exceeds a TBEL
value of 47 ng/l
Describe proposed permit actions based on mercury evaluation: The current permit does not require
monitoring be conducted for total mercury and no effluent pollutant scans are required. As such, no total
mercury data are available for review. As part of the speculative limits provided by the Division,
monitoring for total mercury was recommended at the 1.2 MGD flow tier. Total mercury monitoring has
been added to both the 0.6 MGD and proposed 0.9 MGD flow tiers at a frequency of once per 5 years in
accordance with the Implementation of 2012 Statewide Mercury TMDL guidance. Monitoring shall be
conducted using EPA Method 1631E. Since the facility is < 2.0 MGD, no mercury minimization plan
(MMP) condition is required.

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Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation
within this permit: NA

Other WQBEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: NA
If applicable, describe any special actions (HQW or ORW) this receiving stream and classification shall
comply with in order to protect the designated waterbody: NA
If applicable, describe any compliance schedules proposed for this permit renewal in accordance with
15A NCAC 2H.0107( c)(2)(B), 40CFR 122.47, and EPA May 2007 Memo: NA
If applicable, describe any water quality standards variances proposed in accordance with NCGS 143-
215.3(e) and 15A NCAC 2B.0226 for this permit renewal: NA
7. Technology-Based Effluent Limitations (TBELs)
Municipals (if not applicable, delete and skip to Industrials)
Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/l
BOD5/TSS for Monthly Average, and 45 mg/l for BOD5/TSS for Weekly Average). YES
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA
Are 85% removal requirements for BOD5/TSS included in the permit? YES
If NO, provide a justification (e.g., waste stabilization pond). NA

8. Antidegradation Review (New/Expanding Discharge):
The objective of an antidegradation review is to ensure that a new or increased pollutant loading will not
degrade water quality. Permitting actions for new or expanding discharges require an antidegradation
review in accordance with 15A NCAC 2B.0201. Each applicant for a new/expanding NPDES permit
must document an effort to consider non-discharge alternatives per 15A NCAC 2H.0105( c)(2). In all
cases, existing instream water uses and the level of water quality necessary to protect the existing use is
maintained and protected.
If applicable, describe the results of the antidegradation review, including the Engineering Alternatives
Analysis (EAA) and any water quality modeling results: The proposed expansion is funded via the
American Rescue Plan Act (ARPA) and is not subject to review under the National Environmental Policy
Act (NEPA). As all funds ARPA are through the Wastewater Reserve, Drinking Water Reserve and/or the
Viable Utility Reserve, the project is not subject to review under the State Environmental Policy Act
(SEPA).
An Engineer’s Alternatives Analysis (EAA) was submitted by McGill Associates (McGill), the consulting
firm hired by the Town of Bryson City, on February 13, 2023. In their EAA, McGill noted that the
average daily flow at the Bryson City WWTP for the period of January 2018 through September 2022
was 0.513 MGD, which is 86% of the plant’s permitted flow. This is in agreement with the effluent
summary prepared for this fact sheet. Based on 15A NCAC 02T .0118, prior to exceeding 90 percent of
the system's permitted hydraulic capacity (based on the average flow during the last calendar year), the
permittee shall obtain all permits needed for the expansion of the wastewater treatment, utilization, or
disposal system and, if construction is needed, submit final plans and specifications for expansion,
including a construction schedule. As such, the Town has submitted an EAA and request for facility
expansion.
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In their initial report, McGill notes that based on 2020 US Census data, the population of Swain County
increased by 0.097% per year over the past 10 years and the population of Bryson City increased by 0.9%
per year over the same period. The expected 2042 Town population is 1,813 residents and the expected
2062 Town population is 2,046 residents. Residential flow is anticipated to reach 0.126 MGD and 0.142
MGD in 2042 and 2062, respectively. In addition, an estimated commercial flow of 0.142 MGD and
industrial flow of 0.014 MGD was assumed constant for the duration. McGill also notes that the estimated
Inflow and Infiltration (I/I) experienced at the plant is 0.225 MGD. The EAA then noted a reserve
capacity of nearly 0.6 MGD by 2062 to accommodate future growth in the Town and account for seasonal
variability experienced at the Town during the fall and winter. Upon review of this EAA, it was
determined that the supporting information was insufficient to justify the 1.2 MGD expansion requested.
The Division requested that the Town reevaluate the flow projections to provide further explanation of
need for additional capacity at the facility on February 27, 2023.
On December 21, 2023, McGill provided revised flow projections based on sewer service connection
information included in the Town’s Local Water Supply Plan (LWSP), I/I reduction estimates based on
the Town’s Asset Inventory and Assessment, commercial flow based on commercial usage/billing data
from the Town, and the assumed industrial flow identified in the initial EAA. Based on these revisions,
the Town requested that a permitted capacity of 0.9 MGD be added to the permit.
NC Office of State Budget and Management (OSBM) population growth data was reviewed by Division
staff to accompany the submitted information. Review of data for the Town of Bryson City reflected the
population growth indicated by McGill, though slightly different at a growth rate of 0.94%. Based on the
existing 0.6 MGD flow tier, the service population increasing by approximately 3,000 residents by 2040,
a flow rate of 70 gallons per person per day, an estimated commercial flow of 0.21 MGD and industrial
flow of 0.014 MGD provided by the Town, a 15% reserve flow for potential new industrial and
commercial users, and a 17% seasonal flow variation identified for this facility during the review of the
last 5 years of data, a flow demand of 0.73 MGD was calculated by 2040. I/I was not considered in this
flow. Based on this review, further discussion ensued between the Town and the Division and it was
determined that a permitted capacity of 0.9 MGD is justified. The Town and McGill revised the
application and EAA and submitted a formal request for modification to include a 0.9 MGD flow tier
instead of a 1.2 MGD flow tier on February 7, 2024.
The following alternatives were evaluated for the proposed discharge:
Alternative Description Cost Estimate
Connection to an Existing Public
Sewer System Deemed infeasible
Land Application Deemed infeasible
Public Access Reuse* $17,950,000 for distribution system + additional treatment at facility
Surface Discharge NPDES $15,875,400 + $427,360/year for operation and maintenance
Combination of Alternatives N/A
*Shown costs do not include operation and maintenance costs provided in the analysis.

Connection to an Existing WWTP: The alternative of connecting to an existing WWTP for treatment
was considered during the EAA review. However, the alternative was deemed infeasible, as no municipal
WTPs exist within a 5-mile radius of the facility that are larger than the Bryson City WWTP.
Land Application: The alternative of land applying the additional 0.3 MGD to nearby farmland, golf
courses, or other available lands suitable for use with spray irrigation was considered. Assuming the
additional flow were to occur at maximum capacity, the weekly land application would be 2.1 MG/week.
A usage ratio of 70% was assumed, resulting in an estimated weekly reuse water flow of 3 MG. After
analysis of ratings of soil within Swain County, a hydraulic loading rate of 1 inch per acre per week was
assumed. Based on a 1 inch per acre per week application rate, the application of 3 MGD would require
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approximately 111 acres not including buffers. 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,
land application was deemed infeasible.
Wastewater Reuse: The alternative of public access reuse of the additional 0.3 MGD was considered. 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 300,000 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 590
residential customers would be needed to utilize the remaining 300,000 gallons of reuse water. While
technically feasible, wastewater reuse would require advanced treatment, which would increase the cost
of the WWTP improvements significantly. Also, this alternative would require the construction of a
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, wastewater reuse was considered cost prohibitive
to implement, relative to a direct discharge alternative. For this reason, a full preliminary estimate of cost
was not prepared for this alternative. The cost of a reuse water distribution system alone was estimated at
$17.95 million (34 miles x 5,280’/mile x $100/LF for reuse water main installation) was provided by
McGill. This cost exceeds the total cost of the preferred alternative without considering the cost of
additional treatment (which could exceed $10 million).
Direct Discharge to Surface Waters: The total construction cost to expand the treatment process to 0.9
MGD is $15.879 million not including soft costs associated with the project.
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.
Endangered Species: As part of the Engineers Report/Environmental Information Document process
required by the Division of Water Infrastructure, comments from cross-cutting agencies were solicited for
the proposed project. As part of this process, the North Carolina Wildlife Resources Commission
provided input that included a list of rare and listed species within the project area and vicinity. Reponses
to this comment, among others, were included in a subsequent revision to the ER/EID that addressed
potential impacts and any mitigative measures that would be implemented. The revised ER/EID noted
that “Construction is not anticipated to impact any threatened or endangered species or critical
habitat. The project site has been developed for many years prior to the proposed project. The
construction activities related to this project will be limited to existing and previously disturbed WWTP
property and sewer line corridor. It is anticipated that no tree removal is proposed for the project.” An
electronic copy of the draft permit is being submitted to the North Carolina Wildlife Resources
Commission and US Fisheries and Wildlife Service for review.
9. Antibacksliding Review:
Sections 402(o)(2) and 303(d)(4) of the CWA and federal regulations at 40 CFR 122.44(l) prohibit
backsliding of effluent limitations in NPDES permits. These provisions require effluent limitations in a
reissued permit to be as stringent as those in the previous permit, with some exceptions where limitations
may be relaxed (e.g., based on new information, increases in production may warrant less stringent TBEL
limits, or WQBELs may be less stringent based on updated RPA or dilution).
Are any effluent limitations less stringent than previous permit (YES/NO): NO
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If YES, confirm that antibacksliding provisions are not violated: NA
10. Monitoring Requirements
Monitoring frequencies for NPDES permitting are established in accordance with the following
regulations and guidance: 1) State Regulation for Surface Water Monitoring, 15A NCAC 2B.0500; 2)
NPDES Guidance, Monitoring Frequency for Toxic Substances (7/15/2010 Memo); 3) NPDES Guidance,
Reduced Monitoring Frequencies for Facilities with Superior Compliance (10/22/2012 Memo); 4) Best
Professional Judgement (BPJ). Per US EPA (Interim Guidance, 1996), monitoring requirements are not
considered effluent limitations under Section 402(o) of the Clean Water Act, and therefore anti-
backsliding prohibitions would not be triggered by reductions in monitoring frequencies.
For instream monitoring, refer to Section 4.
Effluent monitoring for BOD, TSS, fecal coliform, pH, TRC, and temperature is required to be conducted
weekly in the current permit. Additionally, the current permit requires 2/month effluent ammonia
monitoring. Per 15A NCAC 02B .0508, each listed parameter shall be monitored 3/week in the effluent,
except ammonia, which shall be monitored weekly. No changes have been proposed to the monitoring
frequencies at the 0.6 MGD flow tier. However, effluent monitoring requirements at the 0.9 MGD flow
tier have been revised to match 15A NCAC 02B .0508.
For calculation of Total Nitrogen, effluent and instream monitoring of TKN and NO2+NO3 has been
added to the permit.
As the facility discharge comprises less than 1% of the receiving stream, effluent and instream hardness
has not been added to the permit.
To better understand the contribution of PFAS compounds from the Bryson City WWTP, which
discharges above Fontana Lake, monitoring of PFAS chemicals will be added to the permit at a frequency
of 2/year. Since a published 40 CFR 136 EPA method for sampling and analyzing PFAS in wastewater is
not currently available, the PFAS sampling requirement in the Permit includes a compliance schedule
which delays the effective date of this requirement until the first full calendar quarter beginning 6 months
after EPA has a final wastewater method in 40 CFR 136 published in the Federal Register. This date may
be extended upon request and if there are no NC-certified labs.
11. Electronic Reporting Requirements
The US EPA NPDES Electronic Reporting Rule was finalized on December 21, 2015. Effective
December 21, 2016, NPDES regulated facilities are required to submit Discharge Monitoring Reports
(DMRs) electronically. While NPDES regulated facilities would initially be required to submit additional
NPDES reports electronically effective December 21, 2020, EPA extended this deadline from December
21, 2020, to December 21, 2025. The current compliance date, effective January 4, 2021, was extended as
a final regulation change published in the November 2, 2020 Federal Register. This permit contains the
requirements for electronic reporting, consistent with Federal requirements.
12.Summary of Proposed Permitting Actions:
Table 5. Current Permit Conditions and Proposed Changes Outfall 001
Parameter Current Permit Proposed Change Basis for Condition/Change
Flow MA 0.6 MGD Add 0.9 MGD expansion
tier
15A NCAC 2B .0505; EAA review
BOD5 MA 30.0 mg/l
WA 45.0 mg/l
Monitor and report
Weekly
No change to 0.6 MGD tier;
Add to 0.9 MGD flow tier:
MA 30.0 mg/l
WA 45.0 mg/l
TBEL. 2024 Speculative Limits
Page 11 of 12

Monitor and report 3/Week
NH3-N Monitor and report
2/month
No change to 0.6 MGD;
Monitor Weekly @ 0.9
MGD flow tier
Monitoring; 2024 WLA review.
2024 Speculative Limits
TSS MA 30.0 mg/l
WA 45.0 mg/l
Monitor and report
Weekly
No change to 0.6 MGD tier;
Add to 0.9 MGD flow tier:
MA 30.0 mg/l
WA 45.0 mg/l
Monitor and report 3/Week
TBEL. 2024 Speculative Limits
Fecal coliform MA 200 /100ml
WA 400 /100ml
Monitor and report
Weekly
No change to 0.6 MGD tier;
Add to 0.9 MGD flow tier:
MA 200 /100ml
WA 400 /100ml
Monitor and report 3/Week
WQBEL. State WQ standard, 15A
NCAC 2B .0200; 2024 Speculative
Limits
pH 6 – 9 SU
Monitor and report
Weekly
No change; Add to 0.9
MGD flow tier:
6 – 9 SU
Monitor and report 3/Week
WQBEL. State WQ standard, 15A
NCAC 2B .0200; 2024 Speculative
Limits
Temperature Monitor and report
Weekly
No change; Monitor
3/Week @ 0.9 MGD flow
tier
Monitoring; 2024 Speculative
Limits
Total Residual
Chlorine
DM 28 ug/L
Monitor and report
Weekly
No change; Add to 0.9
MGD flow tier:
DM 28 ug/L
Monitor and report 3/Week
WQBEL. 2024 WLA review. 2024
Speculative Limits
Total Nitrogen Monitor and report
Monthly
No change; Add to 0.9
MGD flow tier
Monitoring. 15A NCAC 02B .0508
TKN No requirement Monitor and report
Monthly for both tiers
For calculation of Total Nitrogen
NO3+NO2 No requirement Monitor and report
Monthly for both tiers
For calculation of Total Nitrogen
Total
Phosphorus
Monitor and report
Monthly
No change; Add to 0.9
MGD flow tier
Monitoring. 15A NCAC 02B .0508
Total Mercury No requirement Monitor and report once per
permit cycle – apply to 0.9
MGD tier
For evaluation of Statewide
Mercury TMDL
PFAS No requirement Add 2/year monitoring with
delayed implementation
Evaluation of PFAS contribution:
facility discharging above WS;
Implementation delayed until after
EPA certified method becomes
available.
Instream
Monitoring
Monitor and Report
upstream and
downstream TN and TP
monthly
Add TKN and NO2+NO3 –
apply to both tiers
For calculation of Total Nitrogen
Electronic
Reporting
Electronic Reporting
Special Condition
No change In accordance with EPA Electronic
Reporting Rule 2015.
MGD – Million gallons per day, MA - Monthly Average, WA – Weekly Average, DM – Daily Max

Page 12 of 12

13. Public Notice Schedule:
Permit to Public Notice: 2/22/2024
Per 15A NCAC 2H .0109 & .0111, The Division will receive comments for a period of 30 days following
the publication date of the public notice. Any request for a public hearing shall be submitted to the
Director within the 30 days comment period indicating the interest of the party filing such request and the
reasons why a hearing is warranted.

14. NPDES Division Contact
If you have any questions regarding any of the above information or on the attached permit, please
contact Nick Coco at [phone] or via email at [e-mail].

15. Fact Sheet Addendum (if applicable):
The draft permit was submitted to the Town of Bryson City, EPA Region IV, US Fish and Wildlife
Services, NC Wildlife Resources Commission, McGill Associates, and the Division’s Asheville Regional
Office, Aquatic Toxicology Branch, Basin Planning Branch and Operator Certification Program for
review. No comments were received from any party.
Were there any changes made since the Draft Permit was public noticed (Yes/No): NO
If Yes, list changes and their basis below: NA

16. Fact Sheet Attachments (if applicable):
• NPDES Implementation of Instream Dissolved Metals Standards – Freshwater Standards
• NH3/TRC WLA Calculations
• BOD & TSS Removal Rate Calculations
• Compliance Inspection Report
• Chemical Addendum
Invoice / Affidavit
Smoky Mountain Times
Post Office Box 730
Bryson City, NC 28713
STATE OF NORTH CAROLINA
COUNTY OF SWAIN
AFFIDAVIT OF PUBLICATION
Public Notice
Personally appeared before the undersigned, Rachel Hoskins, who having been North Carolina Environmental
Management
duly sworn on oath that she is the Regional Publisher of the Smoky Mountain Commission/NPDES Unit
Times, and the following legal advertisement was published in the Smoky 1617 Mail Service Center
Raleigh, NC 27699-1617
Mountain Times newspaper, and entered as second class mail in the Town of Notice of Intent to Issue a
Bryson City in said county and state; and that she is authorized to make this NPDES Wastewater Permit
NC0026557 Bryson City WWTPaffidavitandswornstatement; that the notice or other legal advertisement, a The North Carolina
true copy of which is attached hereto, was published in the Smoky Mountain Environmental Management
Commission proposes to issue aTimesnewspaperonthefollowingdates: NPDES wastewater discharge
permit to the person(s) listed
below. Written commentsPUBLICNOTICENORTHCAROL
regarding the proposed permit
will be accepted until 30 days
after the publish date of this02/22/2024
notice. The Director of the NC
Division of Water Resources
And that the said newspaper in which such notice, paper, document or legal
DWR) ay hold a public hearingppgshouldtherebeasignificant
advertisement was published, was at the time of each and every such degree of public interest. Please
publication, a newspaper meeting all the requirements and qualifications of
mail comments and/at
information requests to DWR at
Section I-597 of the General Statues of North Carolina and was a qualified the above address. Interested 1
newspaper within the meaning of the Section I-597 of the General Statues of persons12N. lsy rvisit the DWR at,
512 N. Salisbury Street, Raleigh,
North Carolina. NC 27604 to review the
information on file. Additional
informationthi on NPDES permitsdoandthisnoticemaybefoundon
our website:
https://deq.nc.gov/public-notices-
Signature o person making affidavit hearings,or by calling (919) 707-
3601. The Town of Bryson City
PO Box 1065, Dunn, NC 28335]
has requested renewal and
expansion of NPDES permit
NC0026557 for its Bryson CitySworntoandsubscribedbeforemethis22nddayofFebruary, 2024.Wastewater Treatment Plant,
located in Swain County. This
permitted facility dischargestIliiHHhi,,,,,%
treated municipal wastewater to
PNNE.M:NFGL°',,,
the
ateru ina theee LittleRiver,Tenn
classessee
Eh:mote, tot .
Q';• d' % River Basin. Currently fecal
NOTq ••' . : coliform, pH, and total residualA,<' •: on . chlorine are water quality limited.Notary Public
p 0 A_ •
This discharge may affect future
MyCommission Expires: 4i ' r'( allocations in this segment of the
iiiC/QL[C Tuckasegee River.
OA'•••... ••••4L ... 02/22/2024#803245
Total Cost of Advertisement: $54.83
I Filed With: NCDEQ-DWR
Address: WATER QUALITY SECTION 1617 MAIL SERVICE CENTER RALEIGH NC 27699-1617
NH3/TRC WLA Calculations
Bryson City WWTP
PermitNo. NC0026557
Prepared By: Nick Coco
Enter Design Flow (MGD):0.6
Enter s7Q10 (cfs):358
Enter w7Q10 (cfs):417
Total Residual Chlorine (TRC)Ammonia (Summer)
Daily Maximum Limit (ug/l)Monthly Average Limit (mg NH3-N/l)
s7Q10 (CFS)358 s7Q10 (CFS)358
DESIGN FLOW (MGD)0.6 DESIGN FLOW (MGD)0.6
DESIGN FLOW (CFS)0.93 DESIGN FLOW (CFS)0.93
STREAM STD (UG/L)17.0 STREAM STD (MG/L)1.0
Upstream Bkgd (ug/l)0 Upstream Bkgd (mg/l)0.22
IWC (%)0.26 IWC (%)0.26
Allowable Conc. (ug/l)6561 Allowable Conc. (mg/l)301.3
Cap at 28 ug/L.> 35 mg/L, monitor only
Apply limit.
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/l)
Fecal Coliform w7Q10 (CFS)417
Monthly Average Limit:Not Required DESIGN FLOW (MGD)0.6
(If DF >331; Monitor)DESIGN FLOW (CFS)0.93
(If DF<331; Limit)STREAM STD (MG/L)1.8
Dilution Factor (DF)385.95 Upstream Bkgd (mg/l)0.22
IWC (%)0.22
Allowable Conc. (mg/l)710.3
> 35 mg/L, monitor only
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/l to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non-Muni)

NH3/TRC WLA Calculations
Bryson City WWTP
PermitNo. NC0026557
Prepared By: Nick Coco
Enter Design Flow (MGD):0.9
Enter s7Q10 (cfs):358
Enter w7Q10 (cfs):417
Total Residual Chlorine (TRC)Ammonia (Summer)
Daily Maximum Limit (ug/l)Monthly Average Limit (mg NH3-N/l)
s7Q10 (CFS)358 s7Q10 (CFS)358
DESIGN FLOW (MGD)0.9 DESIGN FLOW (MGD)0.9
DESIGN FLOW (CFS)1.395 DESIGN FLOW (CFS)1.395
STREAM STD (UG/L)17.0 STREAM STD (MG/L)1.0
Upstream Bkgd (ug/l)0 Upstream Bkgd (mg/l)0.22
IWC (%)0.39 IWC (%)0.39
Allowable Conc. (ug/l)4380 Allowable Conc. (mg/l)201.2
Cap at 28 ug/L.> 35 mg/L, monitor only
Apply limit.
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/l)
Fecal Coliform w7Q10 (CFS)417
Monthly Average Limit:200/100ml DESIGN FLOW (MGD)0.9
(If DF >331; Monitor)DESIGN FLOW (CFS)1.395
(If DF<331; Limit)STREAM STD (MG/L)1.8
Dilution Factor (DF)257.63 Upstream Bkgd (mg/l)0.22
IWC (%)0.33
Allowable Conc. (mg/l)474.1
> 35 mg/L, monitor only
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/l to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non-Muni)

NH3/TRC WLA Calculations
Facility: Bryson City WWTP Receiving water pH(upstream-summer)8.33
Permit No. NC0026557 Receiving water pH (upstream-winter)7.24
Prepared By: N. Coco
Temperature (upstream-summer)23.6
Use Site Specific (FW, SW)Yes Temperature (upstream-winter)12.7
Receiving Water Class FW If SW or FW-SW,salinity (ppt-summer)
Supplemental Class If SW or FW-SW,salinity (ppt-winter)
WS Classification (if needed) Use Site Specific upstream ammonia Yes
Location (no site spec temp.) Bkgd ammonia (upstream-summer)0.030
Use Site Specific pH Yes Bkgd ammonia (upstream-winter)0.027
Is Class PNA/HQW
Effluent Temperature (Summer)24.8 pH (mixed-summer)8.33
Effluent Temperature (Winter)19.25 # pH (mixed-winter)7.24
Effluent pH (Summer)7.30 Temperature (mixed-summer)23.60
Effluent pH (Winter)7.20 Temperature (mixed-winter)12.73
Enter Design Flow (MGD):0.9
Enter s7Q10 (cfs):358
Enter w7Q10 (cfs):417
Total Residual Chlorine (TRC) Ammonia (Summer)
Daily Maximum Limit (ug/l) Monthly Average Limit (mg NH3-N/l)
s7Q10 (CFS) 358 s7Q10 (CFS)358
DESIGN FLOW (MGD) 0.9 DESIGN FLOW (MGD)0.9
DESIGN FLOW (CFS) 1.395 DESIGN FLOW (CFS)1.395
STREAM STD (UG/L) 13.0 INSTREAM STD (MG/L).4
Upstream Bkgd (ug/l) 0 Upstream Bkgd (mg/l)0.03
IWC (%) 0.39 IWC (%)0.39
Allowable Conc. (ug/l) 3349 Allowable Monthly Conc. (mg/l)87.5
Allowable Weekly Con. (mg/l)218.7 2.5 X
Fecal Coliform Ammonia (Winter)
Monthly Average Limit:200/100ml Monthly Average Limit (mg NH3-N/l)
(If DF >331; Monitor)
(If DF<331; Limit) w7Q10 (CFS) 417
Dilution Factor (DF) 257.63 DESIGN FLOW (MGD) 0.9
DESIGN FLOW (CFS) 1.395
INSTREAM STD (MG/L) 2.7
Upstream Bkgd (mg/l) 0.027
IWC (%) 0.33
Allowable Monthly Conc. (mg/l) 798.5
Allowable Weekly Conc. (mg/l) 1996.3 2.5 X
If ammonia toxicity is limiting, winter ammonia (NH3-N) limits cannot exceed twice summer (15A NCAC 2B .0404(c)):
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/l to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. For site specific, Monthly Avg limit x 2.5 3 = Weekly Avg limit (Municipals); otherwise 3X, capped at 35 mg/l
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis); capped at 35 mg/l
4. Winter limits (if ammonia toxicity is limiting) cannot exceed twice the summer limits, 15A NCAC 02B .0404
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non-Muni)

NC0026557 Bryson City WWTP 1/10/2024
Month RR (%)Month RR (%)Month RR (%)Month RR (%)
June-19 94.24 December-21 97.22 June-19 96.79 December-21 97.36
July-19 84.37 January-22 96.90 July-19 88.42 January-22 96.48
August-19 86.05 February-22 92.05 August-19 92.27 February-22 96.65
September-19 90.61 March-22 93.35 September-19 91.95 March-22 94.52
October-19 89.78 April-22 88.87 October-19 91.29 April-22 94.56
November-19 84.28 May-22 96.53 November-19 88.28 May-22 97.18
December-19 90.04 June-22 97.37 December-19 89.80 June-22 97.04
January-20 81.84 July-22 97.46 January-20 84.32 July-22 99.08
February-20 89.11 August-22 97.37 February-20 93.03 August-22 98.47
March-20 91.56 September-22 96.40 March-20 81.94 September-22 98.27
April-20 90.98 October-22 95.68 April-20 85.87 October-22 97.09
May-20 92.46 November-22 97.64 May-20 91.36 November-22 98.61
June-20 67.28 December-22 94.89 June-20 70.85 December-22 97.93
July-20 84.66 January-23 97.11 July-20 87.44 January-23 97.54
August-20 88.18 February-23 94.64 August-20 88.22 February-23 98.35
September-20 91.55 March-23 96.06 September-20 87.19 March-23 98.54
October-20 72.45 April-23 95.77 October-20 88.96 April-23 98.50
November-20 67.99 May-23 95.90 November-20 82.84 May-23 98.63
December-20 78.47 June-23 94.38 December-20 87.24 June-23 98.66
January-21 95.59 July-23 96.48 January-21 95.88 July-23 99.14
February-21 94.05 August-23 93.90 February-21 94.95 August-23 98.63
March-21 97.19 September-23 91.57 March-21 96.28 September-23 97.73
April-21 94.80 October-23 87.18 April-21 94.56 October-23 97.74
May-21 93.83 November-23 92.75 May-21 97.56 November-23 97.47
June-21 96.75 December-23 June-21 96.23 December-23
July-21 94.76 January-24 July-21 96.97 January-24
August-21 94.74 February-24 August-21 96.19 February-24
September-21 95.69 March-24 September-21 97.12 March-24
October-21 97.09 April-24 October-21 97.02 April-24
November-21 99.35 May-24 November-21 98.04 May-24
Overall BOD removal rate 91.62 Overall TSS removal rate 93.94
BOD monthly removal rate TSS monthly removal rate
CHEMICAL ADDENDUM TO NPDES APPLICATION
CAS number
Method Number
(if Applicable)
n/a n/a
Pollutant (Required) Reason Pollutant Believed Present in Discharge
Estimated Concentration(If
Known)
n/a n/a n/a
EPA Identification Number NPDES Number Facility Name Outfall Number
NC0026557 Bryson City WWTP 001
Not currently testing for additional pollutants beyond those
required by the permit.
2/15/2024
Nate Bowe, PE
Director of Engineering & Public Works
Town of Bryson City
t ow PE
MRs Between and Violation Category:Program Category:
County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0026557
%%
%
%
Limit Violation %
%
2 2019 2 2024
MONITORING REPORT(MR) VIOLATIONS for:02/16/24Report Date:1 2
PERMIT:NC0026557 FACILITY:Town of Bryson City - Bryson City WWTP COUNTY:Swain REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPELIMITFREQUENCYPARAMETERLOCATION
Limit Violation
OUTFALL
08 - 2019 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
08/10/19 Weekly Weekly Average
Exceeded
Proceed to NOV5745mg/l 26.7
08 - 2019 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
08/31/19 Weekly Monthly Average
Exceeded
Proceed to NOV34.930mg/l 16.3
10 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
10/10/20 Weekly Weekly Average
Exceeded
Proceed to
Enforcement Case
6345mg/l 40
10 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
10/17/20 Weekly Weekly Average
Exceeded
Proceed to
Enforcement Case
6645mg/l 46.7
10 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
10/24/20 Weekly Weekly Average
Exceeded
Proceed to
Enforcement Case
6445mg/l 42.2
10 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
10/31/20 Weekly Monthly Average
Exceeded
Proceed to
Enforcement Case
51.0230mg/l 70.1
11 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
11/07/20 Weekly Weekly Average
Exceeded
Proceed to
Enforcement Case
6545mg/l 44.4
11 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
11/21/20 Weekly Weekly Average
Exceeded
Proceed to
Enforcement Case
5045mg/l 11.1
11 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
11/28/20 Weekly Weekly Average
Exceeded
Proceed to
Enforcement Case
5645mg/l 24.4
11 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
11/30/20 Weekly Monthly Average
Exceeded
Proceed to
Enforcement Case
50.2530mg/l 67.5
12 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
12/12/20 Weekly Weekly Average
Exceeded
Proceed to
Enforcement Case
6145mg/l 35.6
12 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
12/31/20 Weekly Monthly Average
Exceeded
Proceed to
Enforcement Case
36.4830mg/l 21.6
09 - 2023 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
09/30/23 Weekly Weekly Average
Exceeded
None5145mg/l 13.3
10 - 2023 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
10/28/23 Weekly Weekly Average
Exceeded
None11245mg/l 148.9
10 - 2023 001 Effluent BOD, 5-Day (20 Deg. C) -
Concentration
10/31/23 Weekly Monthly Average
Exceeded
None44.8830mg/l 49.6
MRs Between and Violation Category:Program Category:
County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0026557
%%
%
%
Limit Violation %
%
2 2019 2 2024
MONITORING REPORT(MR) VIOLATIONS for:02/16/24Report Date:2 2
PERMIT:NC0026557 FACILITY:Town of Bryson City - Bryson City WWTP COUNTY:Swain REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPELIMITFREQUENCYPARAMETERLOCATION
Limit Violation
OUTFALL
02 - 2019 001 Effluent Flow, in conduit or thru
treatment plant
02/28/19 Continuous Monthly Average
Exceeded
Proceed to NOV0.630.6mgd 4.3
03 - 2019 001 Effluent Flow, in conduit or thru
treatment plant
03/31/19 Continuous Monthly Average
Exceeded
Proceed to NOV0.670.6mgd 12.0
04 - 2019 001 Effluent Flow, in conduit or thru
treatment plant
04/30/19 Continuous Monthly Average
Exceeded
No Action, BPJ0.610.6mgd 1.0
12 - 2019 001 Effluent Flow, in conduit or thru
treatment plant
12/31/19 Continuous Monthly Average
Exceeded
Proceed to NOV0.620.6mgd 3.1
01 - 2020 001 Effluent Flow, in conduit or thru
treatment plant
01/31/20 Continuous Monthly Average
Exceeded
Proceed to NOV0.640.6mgd 6.8
02 - 2020 001 Effluent Flow, in conduit or thru
treatment plant
02/29/20 Continuous Monthly Average
Exceeded
Proceed to NOV0.850.6mgd 41.1
03 - 2020 001 Effluent Flow, in conduit or thru
treatment plant
03/31/20 Continuous Monthly Average
Exceeded
Proceed to NOV0.770.6mgd 29.0
04 - 2020 001 Effluent Flow, in conduit or thru
treatment plant
04/30/20 Continuous Monthly Average
Exceeded
Proceed to NOV0.640.6mgd 7.4
05 - 2020 001 Effluent Flow, in conduit or thru
treatment plant
05/31/20 Continuous Monthly Average
Exceeded
Proceed to NOV0.620.6mgd 3.4
10 - 2020 001 Effluent Flow, in conduit or thru
treatment plant
10/31/20 Continuous Monthly Average
Exceeded
Penalty Retracted0.620.6mgd 3.8
02 - 2021 001 Effluent Flow, in conduit or thru
treatment plant
02/28/21 Continuous Monthly Average
Exceeded
Proceed to NOV0.650.6mgd 9.1
03 - 2021 001 Effluent Flow, in conduit or thru
treatment plant
03/31/21 Continuous Monthly Average
Exceeded
Proceed to
Enforcement Case
0.680.6mgd 13.7

September 16, 2022

Derek Denard
Environmental Program Consultant
N.C. DEQ - Water Resources – NPDES Permitting
1611 Mail Service Center
Raleigh, North Carolina 27699-1611

Re: NPDES Permit # NC0026557
Town of Bryson City
Swain County
Speculative Limits

Dear Mr. Denard:

On behalf of the Town of Bryson City McGill Associates request that NCDEQ staff provide
speculative limits for the modification of the Town’s NPDES permit for an increase in flow to 1.20
MGD. The permit # is NPDES NC0026557. The outfall location has the following coordinates:

Latitude 350 25' 20" N
Longitude 830 27' 42" W

Should you have any questions or need additional information, please do not hesitate to call me.

Sincerely,

McGILL ASSOCIATES, P.A.

M. KEITH WEBB, P.E.
Vice President

Cc: Regina Mathis – town manager Bryson City
Joel Storrow – McGill Associates
Nate Bowe – McGill Associates

O: Public\Keith Webb\Bryson City\WWTP\DD16spet22
DocuSign Envelope ID: BDC1E434-EBAA-40F5-9lC9-592AD82B522B
STAT!
ROY COOPER Y A
Governor
ELIZABETH S.BISER
Secretary
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
March 28, 2023
Regina Mathis, Town Manager
Town of Bryson City
PO Box 726
Bryson City,NC 28713-0726
Subject: Speculative Effluent Limits
NPDES Permit NCO026557
SRP-W-ARP-0150
Bryson City WWTP
Swain County
Little Tennessee River Basin
Dear Permitttee:
This letter provides speculative effluent limits for a 1.2 MGD expansion for Bryson City WWTP.
McGill Associates, P.A. requested speculative effluent limits on September 16, 2022.
Receiving Stream. The Tuckasegee River is located within the Little Tennessee River Basin. The
Tuckasegee River has a stream classification of B. The USGS responded to a low flow request from M.
Keith Webb, PE, on September 9, 2022, with the following revised flows: the Tuckasegee River has a
summer(annual) 7Q10 flow of 358 cfs, a winter 7Q10 flow of 417 cfs, a 30Q2 flow of 417 cfs, and an
annual average flow of 1,555 cfs.
The Tuckasegee River at Outfall 001 [stream segment 2-79-(40.9)] is not currently listed as an impaired
waterbody on the 2022 North Carolina 303(d) Impaired Waters List. There are no specific permitting
strategies for French Broad River in the Little Tennessee River Basin Water Quality Plan.
Based upon a review of information available from the North Carolina Natural Heritage Program Online
Map Viewer, there are Federally Listed threatened or endangered aquatic species identified within a 5-
mile radius of the proposed discharge location (see attached). If there are any identified
threatened/endangered species, it is recommended that the applicant discuss the proposed project with
the US Fish and Wildlife Service to determine whether the proposed discharge location might impact
such species.
Speculative Effluent Limits. Based on Division review of receiving stream conditions and specific
proposed discharge location, speculative limits for the proposed expansion are provided in Table 1. A
complete evaluation of these limits and monitoring requirements for metals and other toxicants, as well
as potential instream monitoring requirements, will be addressed as part of the review of the NPDES
permit application.
North Carolina Department of Environmental Quality I Division of Water Resources
A
512 North Salisbury Street 1 1617 Mail Service Center I Raleigh,North Carolina 27699-1617
NORTH CtEnWoep.mrinarEnH.anmanrsl0ual\ /
919.707.9000
DocuSign Envelope ID:BDC1E434-EBAA-40F5-91C9-592AD82B522B
Every applicant shall submit documentation of any additional pollutants for which there are certified
methods with the permit application if their discharge is anticipated. These pollutants may be found in
40 CFR Part 136, if there are additional pollutants with certified methods to be reported,please submit
the Chemical Addendum to NPDES Application(unless this was completed earlier) and, if applicable,
list the selected certified analytical method used.
Some features of the speculative limit development include the following:
TABLE 1. Speculative Limits for Town of Bryson City Main WWTP (Proposed 1.0 MGD WWTP)
EFFLUENT
EFFLUENT LIMITS
CHARACTERISTICS Monthly Weekly Daily
Average Average Maximum
Flow 1.2 MGD
BOD5,200C 30 mg/L 45 mg/L
NH3 asN M&R M&R M&R
TSS 30 mg/L 45 mg/L
TRC 28 µg/L
Fecal coliform(geometric mean) 200/100 mL 400/100 mL M&R
Total Phosphorus M&R M&R M&R
Total Nitrogen M&R M&R M&R
Mercury M&R M&R M&R
Acute Toxicity,48-hour LC-50 test, Ceriodaphnia 90%
M&R=monitor and report
NH3 Limits. In accordance with 15A NCAC 213.0206, the following streamflows are used for
dilution considerations for development of WQBELs: 1Q10 streamflow (acute Aquatic Life);
7Q 10 streamflow (chronic Aquatic Life; non-carcinogen HH); 30Q2 streamflow (aesthetics);
annual average flow(carcinogen, HH). Limitations for ammonia are based on protection of
aquatic life utilizing an Ammonia chronic criterion of 1.0 mg/1 (summer) and 1.8 mg/1 (winter).
A Wasteload Allocation (WLA) indicated that the allowable concentration was greater than 35
mg/L. Therefore, no limit for Ammonia will be imposed.
BOD Limits. Limitations for oxygen-consuming waste (e.g., BOD) are generally based on water
quality modeling to ensure protection of the instream dissolved oxygen (DO)water quality
standard. Secondary TBEL limits (e.g., BOD = 30 mg/1 for Municipals, 40 CFR 133 / 15A
NCAC 213 .0406) may be appropriate if deemed more stringent based on dilution and model
results. Model results indicated that Secondary TBEL limits were appropriate.
Engineering Alternatives Analysis EA& Please note that the Division cannot guarantee that an
NPDES permit for a new or expanding discharge will be issued with these speculative limits. Final
decisions can only be made after the Division receives and evaluates a formal permit application for the
expanded discharge.
In accordance with North Carolina Administrative Code 15A NCAC 2H.0105(c), the most
environmentally sound alternative should be selected from all reasonably cost-effective options.
Therefore, as a component of all NPDES permit applications for new and expanding flow includes a
detailed engineering alternatives analysis (EAA) that must be prepared. The EAA must justify the
requested design flow and provide an analysis of potential wastewater treatment alternatives. A copy of
tc QEQ
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh,North Carolina 27699-1611
NORTH GAROLINA 919.707.9000
DapYbNitl of EmbanngnGl Oual
DocuSign Envelope ID:BDC1E434-EBAA-40F5-91C9-592AD82B522B
the Division guidance for preparing EAA documents is attached and/or can be found online at:
https:Hfiles.nc.gov/ncdeq/Surface%20Water%2OProtection/NPDES/permits/eaa-guidance-20140501-
dwr-swp-npdes_13.pdf
State Environmental Policy Act (SEPA)EA/EIS Requirements. A SEPA EA/EIS document may be
required for projects that: 1) involve $10 Million or more of state funds; or 2)will significantly and
permanently impact 10 or more acres of public lands. Please check with the DWR SEPA coordinator
David Wainwright, 919-707-9045) as to whether your project requires SEPA review. For projects that
are subject to SEPA, the EAA requirements discussed above will need to be folded into the SEPA
document. Details related to SEPA can be found at: https:Hdeq.nc.gov/permits-rules/state-
environmental-policy-act-sepa/general-information. If required, a Finding of No Significant
Environmental Impact (FONSI)must be issued prior to issuance of the NPDES permit for the
expansion. Details related to FONSI can be found on-line at: https:Hdeq.nc.gov/permits-
regulations/sepa/review-process and at: https://deq.nc.gov/about/divisions/water-
infrastructure/documents/cdb gi-fonsiea
We understand this expansion project is moving forward rapidly; however, we would expect that
any request for NPDES permitting action for the expansion be taken within a five-year period
from the date of this letter, or the noted speculative limits in Table 1 would be subject to
reassessment and review.
Should you have any questions about these speculative limits or NPDES permitting
requirements, please feel free to contact Derek Denard at(919) 707-3618 /
[e-mail] or Doug Dowden at(919) 707-3605 /[e-mail].
Respectfully,
DocuSigned by:
E l.lf,6.t,(, 16dtk
C464531431644FE...
Michael Montebello
NPDES Program Branch Chief
Attachment: Link to EAA Guidance Document,Chemical Addendum Form,and NPDES application information:
htWs:Hdeq.nc.gov/about/divisions/water-resources/water-quality_permitting/npdes-wastewater/npdes-permitting-
process/npdes-individual-permit-applications
cc: NPDES Files[Laserfiche]
Town of Bryson City/Regina Mathis,Town Manager[[e-mail]]
McGill Associates,P.A./M.Keith Webb,PE[[e-mail]]
DWR/WQPS Doug Dowden[[e-mail]]; Kristen Litzenberger[[e-mail]];
Derek Denard[[e-mail]];John Hennessy [e-mail]];
Charles Weaver[[e-mail]]
ARO/Landon Davidson[[e-mail]];Daniel J Boss[[e-mail]];
Tim Heim[[e-mail]]
NC WRC/Andrea Leslie[[e-mail]]
US FWS/Sarah McRae [[e-mail]]; Sara Ward[[e-mail]]
DWR Planning Section/Fred Tarver[[e-mail]];Pamela Behm[[e-mail]]
QE Q
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh,North Carolina 27699-1611
NORTH GAROLINA 919.707.9000
ow.m.m m em e vi a+im
Roy Cooper,Governor
NC DEPARTMENT OF D_Reid Wilson,Secretary
NATURAL AND CULTURAL RESOURCES
I Misty Buchanan
Deputy Director,Natural Heritage Program
NCNHDE-20940
February 14, 2023
Derek Denard
NC DEQ Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699
RE: Town of Bryson City; NCO026557 (SRP-W-ARP-0150)
Dear Derek Denard:
The North Carolina Natural Heritage Program (NCNHP) appreciates the opportunity to provide
information about natural heritage resources for the project referenced above.
A query of the NCNHP database indicates that there are records for rare species, important natural
communities, natural areas, and/or conservation/managed areas within the proposed project
boundary. These results are presented in the attached 'Documented Occurrences' tables and map.
The attached 'Potential Occurrences' table summarizes rare species and natural communities that
have been documented within a one-mile radius of the property boundary. The proximity of these
records suggests that these natural heritage elements may potentially be present in the project area
if suitable habitat exists. Tables of natural areas and conservation/managed areas within a one-mile
radius of the project area, if any, are also included in this report.
If a Federally-listed species is documented within the project area or indicated within a one-mile
radius of the project area, the NCNHP recommends contacting the US Fish and Wildlife Service
USFWS) for guidance. Contact information for USFWS offices in North Carolina is found here:
https://www.fws.gov/offices/Di rectory/ListOffices.cfm?statecode=37.
Please note that natural heritage element data are maintained for the purposes of conservation
planning, project review, and scientific research, and are not intended for use as the primary criteria
for regulatory decisions. Information provided by the NCNHP database may not be published
without prior written notification to the NCNHP, and the NCNHP must be credited as an information
source in these publications. Maps of NCNHP data may not be redistributed without permission.
Also please note that the NC Natural Heritage Program may follow this letter with additional
correspondence if a Dedicated Nature Preserve, Registered Heritage Area, Land and Water Fund
easement, or an occurrence of a Federally-listed species is documented near the project area.
If you have questions regarding the information provided in this letter or need additional assistance,
please contact Rodney A. Butler at rod ney.butler(o-)ncdcr.gov or 919-707-8603.
Sincerely,
NC Natural Heritage Program
DEPARTMENT OF NATURAL AND CULTURAL RESOURCES
Qv 121 W.JONES STREET.RALEIGH.NC 27603 • 1651 MAIL SERVICE CENTER.RALEIGH.NC 27699
OFC 919.707.9120 • FAX [phone]
Natural Heritage Element Occurrences, Natural Areas, and Managed Areas Intersecting the Project Area
Town of Bryson City
Project No. NC0026557 (SRP-W-ARP-0150)
February 14, 2023
NCNHDE-20940
Element Occurrences Documented Within Project Area
Taxonomic EO ID Scientific Na n Name LdTFOW Element Accuracy Federal State Global State
Group Observation Occurrence Status Status Rank Rank
1 M Date Rank
Amphibian 12892 Cryptobranchus Eastern Hellbender 2020-05-12 B 3-Medium Special G3T2 S3
alleganiensis Concern
alleganiensis
Arachnid 41548 Nesticus reclusus a Cave Cobweb Spider 1992-08-14 E 3-Medium Significantly G3? S1
Rare
Arachnid 41551 Nesticus reclusus a Cave Cobweb Spider 2005-08-26 E 2-High Significantly G3? S1
Rare
Bird 29172 Haliaeetus Bald Eagle 2015-02 E 2-High Bald/Golden Threatened G5 S3B,S3
leucocephalus Eagle N
Protection
Act
Butterfly 40883 Callophrys irus Frosted Elfin 2019-04-17 E 3-Medium Significantly G2G3 S2
Rare
Crustacean 33155 Cambarus georgiae Little Tennessee 2018-07-30 E 3-Medium Special G2G3 S2
Crayfish Concern
Crustacean 24124 Cambarus georgiae Little Tennessee 2016-05-06 E 3-Medium Special G2G3 S2
Crayfish Concern
Crustacean 2073 Cambarus tuckasegee Tuckasegee Stream 2021-10-18 AB 3-Medium Significantly G1G2 S1S2
Crayfish Rare
Freshwater 13340 Alasmidonta Appalachian Elktoe 2021-06-29 A 3-Medium Endangered Endangered G1 S1
Bivalve raveneliana
Freshwater 5933 Alasmidonta Appalachian Elktoe 2021-05-10 A 3-Medium Endangered Endangered G1 S1
Bivalve raveneliana
Freshwater Fish16082 Clinostomus sp. 1 Smoky Dace 2004-07-15 E 3-Medium Special G5T3Q S2
Concern
Freshwater Fish27537 Clinostomus sp. 1 Smoky Dace 2016-05-12 E 3-Medium Special G5T3Q S2
Concern
Freshwater Fish27475 Clinostomus sp. 1 Smoky Dace 2016-04-19 E 3-Medium Special G5T3Q S2
Concern
Freshwater Fish40880 Cottus carolinae Banded Sculpin 1991-10-04 E 3-Medium Special G5 S1
Concern
Page 2 of 13
Element Occurrences Documented Within Project Area
Taxonomic EO ID Scientific Name ommon Name Last Element Accuracy Federal State Global State
Group Observation Occurrence Status Status Rank Rank
na Date Rank
Freshwater Fish16833 Etheostoma Wounded Darter 2021-10-18 E 3-Medium Special G3 S2
vulneratum Concern
Freshwater Fish35604 Moxostoma breviceps Smallmouth Redhorse 2008-10-07 E 3-Medium Significantly G5 S2
Rare
Freshwater Fish31164 Moxostoma breviceps Smallmouth Redhorse 2021-04-28 E 3-Medium Significantly G5 S2
Rare
Freshwater Fish4497 Moxostoma sp. 2 Sicklefin Redhorse 2021-04-29 AB 3-Medium Candidate Threatened G1G2 S2
Freshwater Fish31169 Notropis micropteryx Highland Shiner 2010-07-20 E 3-Medium Significantly G5 S2
Rare
Freshwater Fish32518 Notropis volucellus Mimic Shiner 1995-07-20 H?3-Medium Threatened G5 S2
Freshwater Fish1223 Percina squamata Olive Darter 2018-10-16 E 3-Medium Special G3 S2
Concern
Freshwater Fish16450 Percina squamata Olive Darter 1989-05-24 H 3-Medium Special G3 S2
Concern
Freshwater Fish29734 Percina squamata Olive Darter 2007-10-18 E 3-Medium Special G3 S2
Concern
Freshwater or 35927 Mesomphix latior Broad Button 2003-07-17 E 2-High Significantly G3G4 S2S3
Terrestrial Rare
Gastropod
Lichen 42261 Coniarthonia Hot Dots 2020-07-06 E 3-Medium Significantly GNR S1
kermesina Rare
Throughout
Lichen 40978 Rinodina brodoana Brodo's pepperpot 2012-08-17 E 2-High Significantly GNR S1
Rare Limited
Lichen 42584 Rinodina Lemon Pepperpot 2010-10-14 E 2-High Significantly GNR S1
chrysomelaena Rare
Peripheral
Mammal 38506 Myotis grisescens Gray Bat 2020-08-05 E 2-High Endangered Endangered G3G4 S1
Mammal 34038 Myotis leibii Eastern Small-footed 2016-07-27 E 2-High Special G4 S2
Bat Concern
Mammal 34072 Myotis leibii Eastern Small-footed 2005-08-09 E 2-High Special G4 S2
Bat Concern
Mammal 35141 Myotis lucifugus Little Brown Bat 2002-07-25 E 2-High Endangered G3G4 S2
Mammal 36088 Myotis lucifugus Little Brown Bat 2008-06-25 E 2-High Endangered G3G4 S2
Mammal 36089 Myotis lucifugus Little Brown Bat 2008-06-25 E 2-High Endangered G3G4 S2
Page 3 of 13
Element Occurrences Documented Within Project Area
Taxonomic EO ID Scientific Name ommon Name Last Element Accuracy Federal State Global State
Group Observation Occurrence Status Statu Rank Rank
Date _ Rank
Mammal 36083 Myotis lucifugus Little Brown Bat 2012-08-16 E 1-Very Endangered G3G4 S2
High
Mammal 34227 Myotis septentrionalis Northern Long-eared 2016-08-22 E 2-High Endangered Threatened G2G3 S2
Bat
Mammal 34242 Myotis septentrionalis Northern Long-eared 2008-06-25 E 2-High Endangered Threatened G2G3 S2
Bat
Mammal 39838 Myotis sodalis Indiana Bat 2019-08-20 E 2-High Endangered Endangered G2 S1S2
Mammal 37639 Perimyotis subflavus Tricolored Bat 2015-05-26 E 2-High Proposed Endangered G3G4 S3
Endangered
Mayfly 35318 Ameletus tertius a mayfly 2003-05 E 3-Medium Significantly G4 S2
Rare
Natural 24376 Acidic Cove Forest ---2017-01-04 B 3-Medium G5 S4
Community Typic Subtype)
Natural 30307 Chestnut Oak Forest --- 2010 E 3-Medium G4 S3S4
Community Mesic Subtype)
Natural 24375 Chestnut Oak Forest --- 2010 E 3-Medium G3 S3
Community White Pine Subtype)
Natural 24374 Low Mountain Pine --- 2010-06-20 B 2-High G2G3 S2
Community Forest (Shortleaf Pine
Subtype)
Natural 38688 Montane Oak--Hickory --- 2020-03-26 A 2-High G4G5 S4S5
Community Forest (Acidic
Subtype)
Reptile 41806 Crotalus horridus Timber Rattlesnake 2022-05-20 E 2-High Special G4 S3
Concern
Vascular Plant 14703 Dicentra eximia Bleeding Heart 1968-05-07 H 3-Medium Significantly G4 S3
Rare
Peripheral
Vascular Plant 24786 Hydrastis canadensis Goldenseal 2006-07-Pre C 3-Medium Special G3G4 S3
Concern
Vulnerable
Vascular Plant 27322 Stewartia ovata Mountain Camellia 2008-06-20 B 2-High Significantly G4 S3
Rare
Peripheral
Vascular Plant 14037 Synandra hispidula Synandra 1937-05 H 3-Medium Threatened G4 S1
Page 4 of 13
Natural Areas Documented Within Project Area
Site Nam Representational Rating Collective Rating
Great Smoky Mountains National Park R1 (Exceptional) Cl (Exceptional)
LTN/Alarka Creek Aquatic Habitat R3 (High)C4 (Moderate)
LTN/Little Tennessee River (Lower) Aquatic Habitat Rl (Exceptional) Cl (Exceptional)
LTN/Tuckasegee River Aquatic Habitat Rl (Exceptional) Cl (Exceptional)
LTN/Oconaluftee River Aquatic Habitat Rl (Exceptional) C3 (High)
Little Tennessee River Floodplain Rl (Exceptional) Cl (Exceptional)
Managed Areas Documented Within Project Area
Managed Area Name Owner Owner Type
Great Smoky Mountains National Park US National Park Service Federal
Nantahala National Forest - Cheoah Ranger District US Forest Service Federal
Nantahala National Forest - Nantahala Ranger US Forest Service Federal
District
Needmore Game Land NC Wildlife Resources Commission State
Swain County Open Space Swain County Local Government
Swain County Open Space Swain County Local Government
Swain County Open Space Swain County Local Government
Swain County Open Space Swain County Local Government
Swain County Open Space Swain County Local Government
Swain County Recreation Park Swain County Local Government
Town of Bryson City - Bryson City Island Park Town of Bryson City Local Government
Town of Bryson City Open Space Town of Bryson City Local Government
Town of Bryson City Watershed Town of Bryson City Local Government
USFWS Critical Habitat - Appalachian Elktoe US Fish and Wildlife Service Federal
USFWS Critical Habitat - Indiana Bat US Fish and Wildlife Service Federal
USFWS Critical Habitat - Spotfin Chub US Fish and Wildlife Service Federal
NC Land and Water Fund Conservation Agreement NC DNCR, NC Land and Water Fund State
NC Land and Water Fund Conservation Agreement NC DNCR, NC Land and Water Fund State
NC Land and Water Fund Project NC DNCR, NC Land and Water Fund State
NC Land and Water Fund Project NC DNCR, NC Land and Water Fund State
Mainspring Conservation Trust Easement Mainspring Conservation Trust Private
NC Division of Mitigation Services Easement NC DEQ, Division of Mitigation Services State
Great Smoky Mountains Registered Heritage Area NC DNCR, Natural Heritage Program State
Needmore Game Land Dedicated Nature Preserve NC DNCR, Natural Heritage Program State
NOTE: If the proposed project intersects with a conservation/managed area, please contact the landowner directly for additional information. If the project intersects with a Dedicated Nature Preserve
DNP), Registered Natural Heritage Area(RHA),or Federally-listed species, NCNHP staff may provide additional correspondence regarding the project.
Definitions and an explanation of status designations and codes can be found at https://ncnhde.natureserve.orci/help. Data query generated on February 14,2023;source: NCNHP, Q4,Winter(January)
2023. Please resubmit your information request if more than one year elapses before project initiation as new information is continually added to the NCNHP database.
Page 5 of 13
Natural Heritage Element Occurrences, Natural Areas, and Managed Areas Within a One-mile Radius of the Project Area
Town of Bryson City
Project No. NC0026557 (SRP-W-ARP-0150)
February 14, 2023
NCNHDE-20940
Element Occurrences Documented Within a One-mile Radius of the Project Area
Taxonomic EO ID Scientific Name Common Name Last Element Accuracy Federal State Global State
Group Observation Occurrence Status Status Rank Rank
Date Rank F
Amphibian 12892 Cryptobranchus Eastern Hellbender 2020-05-12 B 3-Medium Special G3T2 S3
alleganiensis Concern
alleganiensis
Arachnid 41548 Nesticus reclusus a Cave Cobweb Spider 1992-08-14 E 3-Medium Significantly G3? Sl
Rare
Arachnid 41551 Nesticus reclusus a Cave Cobweb Spider 2005-08-26 E 2-High Significantly G3? Sl
Rare
Bird 29172 Haliaeetus Bald Eagle 2015-02 E 2-High Bald/Golden Threatened G5 S3B,S3
leucocephalus Eagle N
Protection
Act
Butterfly 40883 Callophrys irus Frosted Elfin 2019-04-17 E 3-Medium Significantly G2G3 S2
Rare
Crustacean 33155 Cambarus georgiae Little Tennessee 2018-07-30 E 3-Medium Special G2G3 S2
Crayfish Concern
Crustacean 24124 Cambarus georgiae Little Tennessee 2016-05-06 E 3-Medium Special G2G3 S2
Crayfish Concern
Crustacean 2073 Cambarus tuckasegee Tuckasegee Stream 2021-10-18 AB 3-Medium Significantly G1G2 S1S2
Crayfish Rare
Dragonfly or 33139 Calopteryx amata Superb Jewelwing 1989-08-04 H 3-Medium Significantly G5 S1S2
Damselfly Rare
Dragonfly or 33722 Somatochlora elongataSki-tipped Emerald 2004-Pre H? 5-Very Significantly G5 S2
Damselfly Low Rare
Dragonfly or 33785 Stylurus scudderi Zebra Clubtail 2004-Pre H? 5-Very Significantly G5 S1S2
Damselfly Low Rare
Dragonfly or 33784 Stylurus scudderi Zebra Clubtail 2004-Pre H? 5-Very Significantly G5 S1S2
Damselfly Low Rare
Freshwater 13340 Alasmidonta Appalachian Elktoe 2021-06-29 A 3-Medium Endangered Endangered Gl Sl
Bivalve raveneliana
Freshwater 5933 Alasmidonta Appalachian Elktoe 2021-05-10 A 3-Medium Endangered Endangered G1 S1
Bivalve raveneliana
Page 6 of 13
Element Occurrences Documented Within a One-mile Radius of the Project Area
Taxonomic EO ID Scientific Name ast Element Accuracy Federal State Global State
Group Observation Occurrence Status Status Rank Rank
11 Date Rank L am
Freshwater 21847 Alasmidonta viridis Slippershell Mussel 2020-10-28 E 3-Medium Endangered G4G5 S1
Bivalve
Freshwater 6011 Elliptic, dilatata Spike 2021-07-07 E 3-Medium Special G5 S2
Bivalve Concern
Freshwater 39909 Fusconaia subrotunda Longsolid 2019-10-09 E 3-Medium Proposed Endangered G3 S1
Bivalve Threatened
Freshwater 23503 Lampsilis fasciola Wavyrayed 2021-07-07 E 3-Medium Special G5 S2
Bivalve Lampmussel Concern
Freshwater 24074 Lampsilis fasciola Wavyrayed 2019-04-11 E 3-Medium Special G5 S2
Bivalve Lampmussel Concern
Freshwater 27893 Pleurobema oviforme Tennessee Clubshell 2021-07-07 AB 3-Medium Endangered G2G3 S1
Bivalve
Freshwater 15854 Villosa iris Rainbow 2021-07-07 E 3-Medium Threatened G5 S2
Bivalve
Freshwater Fish16082 Clinostomus sp. 1 Smoky Dace 2004-07-15 E 3-Medium Special G5T3Q S2
Concern
Freshwater Fish27476 Clinostomus sp. 1 Smoky Dace 2010-07-21 E 3-Medium Special G5T3Q S2
Concern
Freshwater Fish27537 Clinostomus sp. 1 Smoky Dace 2016-05-12 E 3-Medium Special G5T3Q S2
Concern
Freshwater Fish27475 Clinostomus sp. 1 Smoky Dace 2016-04-19 E 3-Medium Special G5T3Q S2
Concern
Freshwater Fish40885 Cottus carolinae Banded Sculpin 1980-09-03 H?3-Medium Special G5 S1
Concern
Freshwater Fish40880 Cottus carolinae Banded Sculpin 1991-10-04 E 3-Medium Special G5 S1
Concern
Freshwater Fish24088 Erimonax monachus Spotfin Chub 2019-10-18 E 3-Medium Threatened Threatened G2 S1
Freshwater Fish1473 Erimonax monachus Spotfin Chub 1940-06-29 X 4-Low Threatened Threatened G2 S1
Freshwater Fish7130 Etheostoma Wounded Darter 2021-07-07 E 3-Medium Special G3 S2
vulneratum Concern
Freshwater Fish16833 Etheostoma Wounded Darter 2021-10-18 E 3-Medium Special G3 S2
vulneratum Concern
Freshwater Fish14580 Etheostoma Wounded Darter 2004-09-20 H?3-Medium Special G3 S2
vulneratum Concern
Freshwater Fish35604 Moxostoma breviceps Smallmouth Redhorse 2008-10-07 E 3-Medium Significantly G5 S2
Rare
Page 7 of 13
Element Occurrences Documented Within a One-mile Radius of the Project Area
Taxonomic EO ID Scientific Name ast Element Accuracy Federal State Global State
Group AffObservation Occurrence Status Statu Rank Rank
L Date _ Rank _
Freshwater Fish31164 Moxostoma breviceps Smallmouth Redhorse 2021-04-28 E 3-Medium Significantly G5 S2
Rare
Freshwater Fish4497 Moxostoma sp. 2 Sicklefin Redhorse 2021-04-29 AB 3-Medium Candidate Threatened G1G2 S2
Freshwater Fish31169 Notropis micropteryx Highland Shiner 2010-07-20 E 3-Medium Significantly G5 S2
Rare
Freshwater Fish32518 Notropis volucellus Mimic Shiner 1995-07-20 H?3-Medium Threatened G5 S2
Freshwater Fish17938 Noturus flavus Stonecat 2021-07-07 AB 3-Medium Endangered G5 S1
Freshwater Fish1223 Percina squamata Olive Darter 2018-10-16 E 3-Medium Special G3 S2
Concern
Freshwater Fish16449 Percina squamata Olive Darter 2008-10-07 E 3-Medium Special G3 S2
Concern
Freshwater Fish16450 Percina squamata Olive Darter 1989-05-24 H 3-Medium Special G3 S2
Concern
Freshwater Fish29734 Percina squamata Olive Darter 2007-10-18 E 3-Medium Special G3 S2
Concern
Freshwater or 38601 Discus nigrimontanus Black Mountain Disc 2013-pre NR 5-Very Significantly G4 S2S3
Terrestrial Low Rare
Gastropod
Freshwater or 38606 Hendersonia occulta Cherrystone Drop 2013-pre NR 5-Very Significantly G4 S2S3
Terrestrial Low Rare
Gastropod
Freshwater or 35927 Mesomphix latior Broad Button 2003-07-17 E 2-High Significantly G3G4 S2S3
Terrestrial Rare
Gastropod
Freshwater or 38614 Ventridens lawae Rounded Dome 2013-pre NR 5-Very Significantly G4 S2S3
Terrestrial Low Rare
Gastropod
Lichen 42261 Coniarthonia Hot Dots 2020-07-06 E 3-Medium Significantly GNP S1
kermesina Rare
Throughout
Lichen 40978 Rinodina brodoana Brodo's pepperpot 2012-08-17 E 2-High Significantly GNR S1
Rare Limited
Lichen 42584 Rinodina Lemon Pepperpot 2010-10-14 E 2-High Significantly GNR S1
chrysomelaena Rare
Peripheral
Mammal 38506 Myotis grisescens Gray Bat 2020-08-05 E 2-High Endangered Endangered G3G4 S1
Page 8 of 13
Element Occurrences Documented Within a One-mile Radius of the Project Area
Taxonomic EO ID Scientific Name ast Element Accuracy Federal State Global State
Group NObservation Occurrence Status Status Rank RankrDateRank
Mammal 34038 Myotis leibii Eastern Small-footed 2016-07-27 E 2-High Special G4 S2
Bat Concern
Mammal 34072 Myotis leibii Eastern Small-footed 2005-08-09 E 2-High Special G4 S2
Bat Concern
Mammal 35141 Myotis lucifugus Little Brown Bat 2002-07-25 E 2-High Endangered G3G4 S2
Mammal 36088 Myotis lucifugus Little Brown Bat 2008-06-25 E 2-High Endangered G3G4 S2
Mammal 36089 Myotis lucifugus Little Brown Bat 2008-06-25 E 2-High Endangered G3G4 S2
Mammal 36083 Myotis lucifugus Little Brown Bat 2012-08-16 E 1-Very Endangered G3G4 S2
High
Mammal 34227 Myotis septentrionalis Northern Long-eared 2016-08-22 E 2-High Endangered Threatened G2G3 S2
Bat
Mammal 34242 Myotis septentrionalis Northern Long-eared 2008-06-25 E 2-High Endangered Threatened G2G3 S2
Bat
Mammal 39838 Myotis sodalis Indiana Bat 2019-08-20 E 2-High Endangered Endangered G2 S1S2
Mammal 37639 Perimyotis subflavus Tricolored Bat 2015-05-26 E 2-High Proposed Endangered G3G4 S3
Endangered
Mammal 8993 Sylvilagus obscurus Appalachian Cottontail 2018-04-20 E 3-Medium Game Animal G4 S3
Mayfly 35318 Ameletus tertius a mayfly 2003-05 E 3-Medium Significantly G4 S2
Rare
Moth 38758 Euchlaena milnei Milne's Euchlaena No Date H? 2-High Significantly G2G4 S1S3
Rare
Natural 24376 Acidic Cove Forest ---2017-01-04 B 3-Medium G5 S4
Community Typic Subtype)
Natural 30307 Chestnut Oak Forest --- 2010 E 3-Medium G4 S3S4
Community Mesic Subtype)
Natural 24375 Chestnut Oak Forest --- 2010 E 3-Medium G3 S3
Community White Pine Subtype)
Natural 24386 Low Elevation Basic ---1992-12-04 E 3-Medium G2 S2
Community Glade (Montane
Subtype)
Natural 24377 Low Elevation Seep --- 2006-07-05 C 2-High G4 S2
Community Floodplain Subtype)
Natural 24374 Low Mountain Pine --- 2010-06-20 B 2-High G2G3 S2
Community Forest (Shortleaf Pine
Subtype)
Page 9 of 13
Element Occurrences Documented Within a One-mile Radius of the Project Area
Taxonomic EO ID Scientific Name
KL_
c"""Element Accuracy Federal State Global State
Group Observation Occurrence Status Status Rank Rank
Date Rank
Natural 15863 Montane Alluvial 2006-07-05 A 2-High G2? S1
Community Forest (Large River
Subtype)
Natural 24373 Montane Oak--Hickory --- 2014-07-26 B 3-Medium G4G5 S4S5
Community Forest (Acidic
Subtype)
Natural 38688 Montane Oak--Hickory --- 2020-03-26 A 2-High G4G5 S4S5
Community Forest (Acidic
Subtype)
Natural 30126 Montane Oak--Hickory ---2017-09-19 B 2-High G3 S3
Community Forest (Basic Subtype)
Natural 33583 Rich Cove Forest 2017-09-19 B 2-High G4 S4
Community Montane Intermediate
Subtype)
Natural 18023 Rocky Bar and Shore ---1992-12-04 A 2-High G3G4 S3
Community Alder-Yellowroot
Subtype)
Reptile 4917 Crotalus horridus Timber Rattlesnake 1972 H 5-Very Special G4 S3
Low Concern
Reptile 41806 Crotalus horridus Timber Rattlesnake 2022-05-20 E 2-High Special G4 S3
Concern
Sawfly, Wasp, 37124 Bombus affinis Rusty-patched Bumble 1930-08-05 H 4-Low Endangered Significantly G2 S1
Bee, or Ant Bee Rare
Vascular Plant 21237 Celastrus scandens American Bittersweet 1956-08-24 H 3-Medium Endangered G5 S2?
Vascular Plant 14703 Dicentra eximia Bleeding Heart 1968-05-07 H 3-Medium Significantly G4 S3
Rare
Peripheral
Vascular Plant 42594 Elymus canadensis var.Robust Canada Wild- 1891-08-00 H 5-Very Significantly GSTNR SH
robustus rye Low Rare Disjunct
Vascular Plant 41408 Erigenia bulbosa Harbinger-of-spring 2021-03 E 6-Unkno Threatened G5 S1
wn
Vascular Plant 24786 Hydrastis canadensis Goldenseal 2006-07-Pre C 3-Medium Special G3G4 S3
Concern
Vulnerable
Page 10 of 13
Element Occurrences Documented Within a One-mile Radius of the Project Area
Taxonomic EO ID Scientific Name ast Element Accuracy Federal State Global State
Group Observation Occurrence Status Status Rank Rank
Date Rank
Vascular Plant 24787 Hydrastis canadensis Goldenseal 2006-07-Pre AC 3-Medium Special G3G4 S3
Concern
Vulnerable
Vascular Plant 10648 Hydrastis canadensis Goldenseal 1993-05-11 ABi 3-Medium Special G3G4 S3
Concern
Vulnerable
Vascular Plant 11441 Monotropsis odorata Sweet Pinesap 1973-05 H 4-Low Significantly G3 S3
Rare Other
Vascular Plant 24300 Smilax hugeri Huger's Carrion-flower 2000-06 B 2-High Significantly G4 S3
Rare
Peripheral
Vascular Plant 33582 Smilax hugeri Huger's Carrion-flower 2014-07-26 B 2-High Significantly G4 S3
Rare
Peripheral
Vascular Plant 27322 Stewartia ovata Mountain Camellia 2008-06-20 B 2-High Significantly G4 S3
Rare
Peripheral
Vascular Plant 27320 Stewartia ovata Mountain Camellia 2008-06-20 C 2-High Significantly G4 S3
Rare
Peripheral
Vascular Plant 33581 Stewartia ovata Mountain Camellia 2014-07-26 D 1-Very Significantly G4 S3
High Rare
Peripheral
Vascular Plant 1082 Synandra hispidula Synandra 1935-05-17 H 4-Low Threatened G4 Sl
Vascular Plant 28370 Synandra hispidula Synandra 2010-Pre E 4-Low Threatened G4 Sl
Vascular Plant 14037 Synandra hispidula Synandra 1937-05 H 3-Medium Threatened G4 Sl
Vascular Plant 14769 Trillium flexipes Bent White Trillium 1937-05-15 H 4-Low Threatened G5 Sl
Natural Areas Documented Within a One-mile Radius of the Project Area
Site Name Representational Rating Collective Rating
Great Smoky Mountains National Park RI (Exceptional) Cl (Exceptional)
LTN/Alarka Creek Aquatic Habitat R3 (High)C4 (Moderate)
LTN/Little Tennessee River (Lower) Aquatic Habitat R1 (Exceptional) C1 (Exceptional)
LTN/Tuckasegee River Aquatic Habitat R1 (Exceptional) C1 (Exceptional)
LTN/Oconaluftee River Aquatic Habitat Rl (Exceptional) C3 (High)
Little Tennessee River Floodplain Rl (Exceptional) C1 (Exceptional)
Page 11 of 13
Managed Areas Documented Within a One-mile Radius of the Project Area
Managed Area Name Wn Owner Type
Great Smoky Mountains National Park US National Park Service Federal
Nantahala National Forest - Cheoah Ranger District US Forest Service Federal
Nantahala National Forest - Nantahala Ranger US Forest Service Federal
District
Needmore Game Land NC Wildlife Resources Commission State
Swain County Open Space Swain County Local Government
Swain County Open Space Swain County Local Government
Swain County Open Space Swain County Local Government
Swain County Open Space Swain County Local Government
Swain County Open Space Swain County Local Government
Swain County Recreation Park Swain County Local Government
Town of Bryson City - Bryson City Island Park Town of Bryson City Local Government
Town of Bryson City Open Space Town of Bryson City Local Government
Town of Bryson City Watershed Town of Bryson City Local Government
USFWS Critical Habitat - Appalachian Elktoe US Fish and Wildlife Service Federal
USFWS Critical Habitat - Indiana Bat US Fish and Wildlife Service Federal
USFWS Critical Habitat - Spotfin Chub US Fish and Wildlife Service Federal
NC Land and Water Fund Conservation Agreement NC DNCR, NC Land and Water Fund State
NC Land and Water Fund Conservation Agreement NC DNCR, NC Land and Water Fund State
NC Land and Water Fund Project NC DNCR, NC Land and Water Fund State
NC Land and Water Fund Project NC DNCR, NC Land and Water Fund State
NC Land and Water Fund Project NC DNCR, NC Land and Water Fund State
Mainspring Conservation Trust Easement Mainspring Conservation Trust Private
NC Division of Mitigation Services Easement NC DEQ, Division of Mitigation Services State
The Nature Conservancy Easement The Nature Conservancy Private
Great Smoky Mountains Registered Heritage Area NC DNCR, Natural Heritage Program State
Needmore Game Land Dedicated Nature Preserve NC DNCR, Natural Heritage Program State
Definitions and an explanation of status designations and codes can be found at https://ncnhde.natureserve.org/help. Data query generated on February 14,2023;source: NCNHP, Q4,Winter(January)
2023. Please resubmit your information request if more than one year elapses before project initiation as new information is continually added to the NCNHP database.
Page 12 of 13
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EPA
United States Environmental Protection Agency
Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 N 52 NC0026557 18/07/19 D S31112171819 20
21 66
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA ----------------------Reserved-------------------
N67707172 73 74 75 80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Bryson City WWTP
US Hwy 19 W
Bryson City NC 28713
Entry Time/Date Permit Effective Date
Exit Time/Date Permit Expiration Date
10:00AM 18/07/19 18/04/01
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)Other Facility Data
12:30PM 18/07/19 23/03/31
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s)Agency/Office/Phone and Fax Numbers Date
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#1
NPDES yr/mo/day
18/07/19
Inspection Type
D
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Beverly Price and Dan Boss, with the Asheville Regional Office, conducted a Technical
Assistance Inspection of the Town of Bryson City’s WWTP on July 19, 2018. This inspection was
conducted at the request of Regina Mathis, Town Manager. Regina Mathis, Stephen Queen and
Greg Passmore were present and assisted with the inspection. Inspectors were on-site to assist in
trying to determine the cause of what the operators referred to as biological die-off. According to
facility staff the WWTP has been re-seeded twice in 2018 and once in 2017.
It is not possible to determine the cause of WWTP upsets in one site visit. It should also be noted
that any change(s) in the mode of operation of the WWTP should be done at a pace to allow for
results of the changes to be evaluated before additional changes are made. Facility personnel
should review data on a daily, weekly and monthly basis to determine trends in changes in effluent
quality. Observations of physical characteristics should be noted as well. Process control measures
should be started and continued on a regular schedule.
Observations and recommendations are detailed within the inspection report and
the summary below.
Process Controls:
Monitor Dissolved Oxygen (DO) daily in the aeration zones at both WWTP’s. DO was <1 mg/l in both
WWTP’s. Ideally, DO should be 1-3 mg/l. Additional/replacement blowers might be needed.
Settable Solids Test – perform daily
Mixed Liquor Suspended Solids (MLSS) Test – perform daily/weekly to determine wasting frequency
pH – monitor influent and contact stabilization basin daily
Monitor sludge depth in the clarifiers daily using a sludge judge
Solids Removal/Bar Screen:
The trailer for collecting solids needs to be repaired and emptied more frequently.
All wastewater from the screening area should be routed back to the head of the WWTP.
Chlorine Contact Basin:
The basin contained a lot of grease and floating solids. It is recommended that the chlorine contact
basin be pumped to remove solids. The FOG program should be evaluated by the collection system
ORC to ensure grease traps are pumped as required.
Composite Sampler:
Evaluate the pump to ensure proper operation.
Place a thermometer in the refrigerator box.
Sampler should be set to collect flow proportional samples if not already flow proportional.
In addition, the Town should communicate with industrial users to determine if waste streams coming
to the WWTP have changed significantly in volume or constituents over the past year.
NC0026557 17 (Cont.)
Page#2
Permit:NC0026557
Inspection Date:07/19/2018
Owner - Facility:
Inspection Type:
Bryson City WWTP
Technical Assistance
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable
Solids, pH, DO, Sludge Judge, and other that are applicable?
The solids collection area beneath the screens consists of a portable dump trailer, tarp
and drainage collection system. Wastewater from this area should drain back to the
head of the WWTP. However, the trailer had a flat tire and was overloaded to the point
where solids were spilling out onto the ground. The trailer needs to be emptied more
frequently to ensure that all solids/water remain under the covered area and any
excess can drain back to the head of the WWTP.
There were no process control parameters being utilized.
Comment:
Bar Screens Yes No NA NE
Type of bar screen
a.Manual
b.Mechanical
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Is disposal of screening in compliance?
Is the unit in good condition?
See comments above under housekeeping.Comment:
Aeration Basins Yes No NA NE
Mode of operation Ext. Air
Type of aeration system Diffused
Is the basin free of dead spots?
Are surface aerators and mixers operational?
Are the diffusers operational?
Is the foam the proper color for the treatment process?
Does the foam cover less than 25% of the basin’s surface?
Is the DO level acceptable?
Is the DO level acceptable?(1.0 to 3.0 mg/l)
Very low levels of dissolved oxygen were observed in the contact stabilazation
treatment unit. Dissolved oxygen (DO) was measured at 4 locations in both WWTP #1
and WWTP #2. DO levels ranged from 0.47-0.80 mg/l.
pH levels measured in both WWTP's were 6.2-6.3 Std. Units.
Comment:
Page#3
Permit:NC0026557
Inspection Date:07/19/2018
Owner - Facility:
Inspection Type:
Bryson City WWTP
Technical Assistance
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper volume collected?
Is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
degrees Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
representative)?
There was evidence of overflow of the composite sample container inside the
refrigerator box; brown stains on the floor and the wall of the refrigerator were
observed. The ORC indicated that the tube feeding mechanism on the composite
sampler was broken. It was unclear as to whether the proper amount of sample is
being collected. There was no thremometer in the composite sampler.
Flow-proportional sampling was not discussed - the sampler should be set to flow
proportional sampling if it is not already.
Comment:
Page#4
EPA
United States Environmental Protection Agency
Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 N 52 NC0026557 21/02/25 C S31112171819 20
21 66
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA ----------------------Reserved-------------------
N67707172 73 74 75 80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Bryson City WWTP
US Hwy 19 W
Bryson City NC 28713
Entry Time/Date Permit Effective Date
Exit Time/Date Permit Expiration Date
10:00AM 21/02/25 18/04/01
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)Other Facility Data
12:30PM 21/02/25 23/03/31
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s)Agency/Office/Phone and Fax Numbers Date
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#1
NPDES yr/mo/day
21/02/25
Inspection Type
C
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Lauren Armeni and Tim Heim, with the Asheville Regional Office, conducted a compliance
evaluation inspection of the Bryson City WWTP on February 25, 2021. This inspection was
conducted to determine whether the facility is being operated and maintained in compliance with
NPDES Permit No. NC0026557. Dale Wike (ORC) and Greg Passmore (BORC) were present and
assisted in the inspection.
Facility consists of a mechanical bar screen, two contact stabilization treatment units consisting of
influent pumping, aeration and reaeration zones, secondary clarifiers, a sludge digester, belt press &
sludge dry storage, and chlorination and dechlorination.
The following items were noted during the inspection:
Bar Screen: The bar screens are not functioning adequately to maintain continuous facility
compliance. Significant solids are passing through the headworks and interfering with other
components of the facility and negatively impacting the effluent. The screens also require constant
manual cleaning and are a significant maintenance burden to staff, as well as a possible hygiene
hazard. Replacement of the bar screens should be made a priority during plant upgrades.
Aeration Basins: The BORC had measured settleability prior to the inspection and the results were as
follows: aeration basin from WWTP #1 - 50% and aeration basin from WWTP #2 - 65%. Settleability
is not as good in WWTP #2, which could be a result of the return pump not properly working in
WWTP #2. The ORC stated that the MLSS is maintained around 3,000-4,000 mg/L. DO varied in
both aeration basins, and levels were too low in aeration basin #2 at 0.20-0.22 mg/L. The ORC will
need to adjust the blowers in the aeration basin of WWTP #2 and/or replace blowers as necessary.
Secondary Clarifiers: The center wells in both WWTP #1 and WWTP #2 clarifiers had a buildup of
solids and other floating debris that should have been removed with the bar screen. Floating sludge
was visible in both clarifiers. Debris was noted accumulating in areas of the weir teeth, so it is
recommended to increase their cleaning frequency.
RAS Pump: The ORC discovered a hole in the return sludge pipe of WWTP #2 a couple weeks ago.
The ORC stated they were waiting for parts to come in and in the meantime have another pump in
the #2 secondary clarifier to return sludge. The ORC has a plan to drawdown the #2 aeration basin
since the RAS pipe is submerged underwater. The unused digester (currently a surge tank) of
WWTP #2 will then be used as a temporary aeration basin while the repair is being made.
Chlorine Contact Chamber: The chlorine contact chamber had a sludge blanket of 1.5 feet out of 5
feet. The ORC stated that the chamber gets cleaned out monthly, but this frequency appears to not
be enough due to the sludge blanket level and floating solids. It is recommended to clean out the
chlorine contact chamber more frequently. Additionally, the vegetation around the chamber was
overgrown and needs to be maintained.
Effluent Sampling: During the inspection, the composite sampler would not turn on. Determine if the
sampler can be repaired, and if not, a new composite sampler should be purchased. We could not
determine whether or not the sampler was set to be flow proportional since it would not turn on, nor
could we determine the sampling aliquots. Additionally, the thermometer was broken and needs to be
replaced.
Flow Measurement - Effluent: The effluent weir plate is breaking loose from the concrete. This issue
needs to be fixed immediately to ensure flow can continually be measured.
Overall,the facility is in non-compliance with the requirements outlined in the permit for the following
reasons:
NC0026557 17 (Cont.)
Page#2
Permit:NC0026557
Inspection Date:02/25/2021
Owner - Facility:
Inspection Type:
Bryson City WWTP
Compliance Evaluation
1. The bar screens are not functioning adequately to maintain continuous facility compliance.
2. The RAS pump in WWTP #2 is currently not operational. A hole was discovered in the RAS pump
line. The ORC stated they are waiting on the parts and will replace the line as soon as possible.
3. The chlorine contact chamber contained floating solids and had a sludge blanket of 1.5 feet out of
5 feet. There should not be solids in the contact chamber.
4. The composite sampler would not turn on during the inspection. The sampler needs to be
repaired and replaced if necessary. Additionally, the thermometer was broken and needs to be
replaced. Verify that the composite sampler is set to be flow proportional.
5. The effluent weir plate is breaking loose from the concrete and needs to be repaired to ensure that
flow can be continually measured.
Page#3
Permit:NC0026557
Inspection Date:02/25/2021
Owner - Facility:
Inspection Type:
Bryson City WWTP
Compliance Evaluation
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
Comment:
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable
Solids, pH, DO, Sludge Judge, and other that are applicable?
Process controls include DO, chlorine residual, sludge judge, MLSS and settleometer.Comment:
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit?
Is all required information readily available, complete and current?
Are all records maintained for 3 years (lab. reg. required 5 years)?
Are analytical results consistent with data reported on DMRs?
Is the chain-of-custody complete?
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance report to users and DWQ?
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified
operator on each shift?
Is the ORC visitation log available and current?
Is the ORC certified at grade equal to or higher than the facility classification?
Is the backup operator certified at one grade less or greater than the facility
classification?
Page#4
Permit:NC0026557
Inspection Date:02/25/2021
Owner - Facility:
Inspection Type:
Bryson City WWTP
Compliance Evaluation
Record Keeping Yes No NA NE
Is a copy of the current NPDES permit available on site?
Facility has copy of previous year's Annual Report on file for review?
Comment:
Bar Screens Yes No NA NE
Type of bar screen
a.Manual
b.Mechanical
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Is disposal of screening in compliance?
Is the unit in good condition?
The bar screens are not functioning adequately to maintain continuous facility
compliance.
See summary for details.
Comment:
Aeration Basins Yes No NA NE
Mode of operation Ext. Air
Type of aeration system Diffused
Is the basin free of dead spots?
Are surface aerators and mixers operational?
Are the diffusers operational?
Is the foam the proper color for the treatment process?
Does the foam cover less than 25% of the basin’s surface?
Is the DO level acceptable?
Is the DO level acceptable?(1.0 to 3.0 mg/l)
DO was measured at various locations in both WWTP #1 and WWTP #2 aeration
basins. In WWTP #1, DO levels ranged from 3.64-3.68 mg/L. In WWTP #2, DO levels
ranged from 0.20-0.22 mg/L. Blowers in aeration basin of WWTP #2 should be
adjusted and/or replaced. DO levels were acceptable in the aeration basin of WWTP
#1, but too low in the aeration basin of WWTP #2.
See summary for details.
Comment:
Secondary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater?
Is the site free of excessive buildup of solids in center well of circular clarifier?
Page#5
Permit:NC0026557
Inspection Date:02/25/2021
Owner - Facility:
Inspection Type:
Bryson City WWTP
Compliance Evaluation
Secondary Clarifier Yes No NA NE
Are weirs level?
Is the site free of weir blockage?
Is the site free of evidence of short-circuiting?
Is scum removal adequate?
Is the site free of excessive floating sludge?
Is the drive unit operational?
Is the return rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Is the sludge blanket level acceptable? (Approximately ¼ of the sidewall depth)
The center wells in both WWTP #1 and WWTP #2 clarifiers had a buildup of solids and
other floating debris that should have been removed with the bar screen. Floating
sludge was visible in both clarifiers. Debris was noted accumulating in areas of the
weir teeth, so it is recommended to increase their cleaning frequency.
See summary for details.
Comment:
Pumps-RAS-WAS Yes No NA NE
Are pumps in place?
Are pumps operational?
Are there adequate spare parts and supplies on site?
The return pump in the #2 WWTP is currently not working.
See summary for details.
Comment:
Aerobic Digester Yes No NA NE
Is the capacity adequate?
Is the mixing adequate?
Is the site free of excessive foaming in the tank?
# Is the odor acceptable?
# Is tankage available for properly waste sludge?
The digester is only utilized in WWTP #1. ORC stated the digester in WWTP #2 is
being used as a surge basin.
Comment:
Solids Handling Equipment Yes No NA NE
Is the equipment operational?
Is the chemical feed equipment operational?
Is storage adequate?
Is the site free of high level of solids in filtrate from filter presses or vacuum filters?
Page#6
Permit:NC0026557
Inspection Date:02/25/2021
Owner - Facility:
Inspection Type:
Bryson City WWTP
Compliance Evaluation
Solids Handling Equipment Yes No NA NE
Is the site free of sludge buildup on belts and/or rollers of filter press?
Is the site free of excessive moisture in belt filter press sludge cake?
The facility has an approved sludge management plan?
The belt press was not in operation at the time of the inspection and was not fully
evaluated.
Comment:
Disinfection-Liquid Yes No NA NE
Is there adequate reserve supply of disinfectant?
(Sodium Hypochlorite) Is pump feed system operational?
Is bulk storage tank containment area adequate? (free of leaks/open drains)
Is the level of chlorine residual acceptable?
Is the contact chamber free of growth, or sludge buildup?
Is there chlorine residual prior to de-chlorination?
The chlorine contact chamber had a sludge blanket of 1.5 feet out of 5 feet. The ORC
stated that the chamber gets cleaned out monthly, but this frequency appears to not
be enough due to the sludge blanket level and floating solids.
See summary for details.
Comment:
De-chlorination Yes No NA NE
Type of system ?Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)?
Is storage appropriate for cylinders?
# Is de-chlorination substance stored away from chlorine containers?
Comment:
Are the tablets the proper size and type?
Are tablet de-chlorinators operational?
Number of tubes in use?
Comment:
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper volume collected?
Is the tubing clean?
Page#7
Permit:NC0026557
Inspection Date:02/25/2021
Owner - Facility:
Inspection Type:
Bryson City WWTP
Compliance Evaluation
Effluent Sampling Yes No NA NE
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
degrees Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
representative)?
The effluent composite sampler would not turn on during the inspection. The sampler
needs to be maintained to determine if it can be fixed, and if not, a new composite
sampler should be purchased.
See summary for details.
Comment:
Flow Measurement - Effluent Yes No NA NE
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
The effluent weir plate is breaking loose from the concrete. This issue needs to be
fixed immediately to ensure flow can continually be measured.
Comment:
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Comment:
Standby Power Yes No NA NE
Is automatically activated standby power available?
Is the generator tested by interrupting primary power source?
Is the generator tested under load?
Was generator tested & operational during the inspection?
Do the generator(s) have adequate capacity to operate the entire wastewater site?
Is there an emergency agreement with a fuel vendor for extended run on back-up
power?
Is the generator fuel level monitored?
The generator is tested every Monday and all components are checked and
maintained semi-annually. At the time of the inspection, the fuel level was 3/4 full.
Comment:
Page#8
9/10/22, 1:16 PM Mail - Denard, Derek - Outlook
https://outlook.office365.com/mail/inbox/id/AAQkADdhYTVmZDBlLTE5ZDctNGI5MC04ZjliLWU4MjVhZTBhMmJkMgAQAFnyzB6nZAZJsbSwe0L3J1Q…1/4
USGS response to DWR USGS Low Flows request # 2022-231 (dated 2022/09/02) for
Tuckasegee River Swain County...Re: [EXTERNAL] Low-flow request approval
Weaver, John C <[e-mail]>
Fri 9/9/2022 10:46 PM
To:[e-mail] <[e-mail]>;[e-mail]
<[e-mail]>
Cc:Kebede, Adugna <[e-mail]>;Montebello, Michael J
<[e-mail]>;Dowden, Doug <[e-mail]>;Litzenberger, Kristin S
<[e-mail]>;Denard, Derek <[e-mail]>;Albertin, Klaus P
<[e-mail]>;Weaver, John C <[e-mail]>
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Mr. Bowe,

In response to your inquiry about the low-flow characteriscs for the Tuckasegee River adjacent a wastewater
treatment facility at Bryson City in central Swain County, the following informaon is provided:

A check of the low-flow files here at the USGS South Atlanc Water Science Center (SAWSC, Raleigh office)
suggests a previous low-flow determinaon for the specific point of interest, idenfied by the lat/long coordinates
(35.42246, -83.46169) provided via email dated 09/02/2022 from the DWR USGS Low Flows portal following your
request submission. However, informaon pertaining to this previous determinaon could not be fully confirmed
and is therefore considered not immediately available.

The point of interest is located approximately 1.1 miles downstream from an acvely operated USGS connuous-
record streamgage on the Tuckasegee River at Bryson City (staon id 03513000, NWIS drainage area = 655 sqmi,
StreamStats-delineated drainage area = 654 sqmi, approximately 400 feet downstream of Evere Street bridge at
Bryson City…NC Secondary Road 1364). Available data for this streamgage is described
at hps://waterdata.usgs.gov/nc/nwis/inventory/?site_no=03513000&agency_cd=USGS. Records of discharge
have been collected at this streamgage since October 1897.

A basin delineaon completed using the online USGS StreamStats applicaon for North Carolina
(hps://streamstats.usgs.gov/ss/) indicates the drainage area for the point of interest (StreamStats adjusted
35.42247, -83.46169 NAD83) is 659 sqmi, which confirms the drainage area submied as part of the request
informaon.

For streams in Swain County, low-flow characteriscs published by the USGS are provided in the following
reports:

(1) The first is a statewide report completed in the early 1990's. It is USGS Water-Supply Paper 2403, "Low-flow
characteriscs of streams in North Carolina" (Giese and Mason, 1993). An online version of the report is available
at hp://pubs.usgs.gov/wsp/2403/report.pdf. The report provides the low-flow characteriscs (based on data
through 1988) via regional relaons and at-site values for sites with drainage basins between 1 and 400 sqmi and
not considered or known to be affected by regulaon and/or diversions.

(2) The second is a statewide report published in March 2015. It is USGS Scienfic Invesgaons Report 2015-
5001, "Low-flow characteriscs and flow-duraon stascs for selected USGS connuous-record streamgaging
staons in North Carolina through 2012" (Weaver, 2015). The report is available online
at hp://pubs.usgs.gov/sir/2015/5001/. The report provides updated low-flow characteriscs and flow-duraon
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stascs for 266 acve (as of 2012 water year) and disconnued streamgages across the state where a minimum
of 10 climac years discharge records were available for flow analyses.

Low-flow characteriscs esmated for the point of interest:

As the point of interest is located approximately 1.1 miles downstream from the USGS streamgage at Bryson City
with negligible change in drainage area, it was deemed reasonable and appropriate to apply the low-flow
characteriscs for the upstream streamgage directly to the point of interest.

Inspecon of the most recent USGS statewide low-flow report (#3 above-referenced report) indicates the low-
flow characteriscs based on the 1942-80, 1984-93, and 1996-2011 climac years were published (in table 3 on
page 29). However, because of the addional 10 climac years of streamflow records currently available for this
streamgage, provisional updated low-flow analyses were completed for the streamgage to determine
esmated low-flow discharges for applicaon to the point of interest. The period of analysis used for this
streamgage reflects regulated flow condions. In the most recent (2021) water-year summary for this
streamgage, the remarks state, "Considerable fluctuaons caused by power plants upstream from staon. Flow
regulated by Thorpe Lake, Cedar Cliff Lake, and Lake Ela."
Provisional updated values among the four low-flow discharges were determined to be from -1.4 to 1.1 percent
relave to the previously published stascs.

Trend tests completed as part of the analyses do not suggest a possible trend (p-value less than 0.05) for both the
the lowest annual (April to March) and winter (November to March) 7-day average flow series as well as for the
lowest annual 30-day average flow series.

Period of analysis: 1942-80, 1984-93, and 1996-2021 climac years (provisional records post September 2021)

Annual 7Q10 = 358 cfs (with 95% confidence intervals between 323 and 388 cfs)
Annual 30Q2 = 637 cfs (with 95% confidence intervals between 587 and 691 cfs)
Winter 7Q10 = 417 cfs (with 95% confidence intervals between 360 and 465 cfs)
Annual 7Q2 = 527 cfs (with 95% confidence intervals between 487 and 570 cfs)

Annual average discharge = 1,555 cfs (Manually computed based on period of record beginning with
1942 climac year [April 1, 1942])
Internal notes, for follow-up as needed:
Provisional analyses completed 09-09-2022 using the USGS SW Toolbox (version 1.0.5)
Internal note: Output files available in C:\D_Drive_Data\OneDrive - DOI\Lowflow\2022_SAWSC_low-
flow_regionalizaon\BATCH_Low-Flow_analyses\Site_analyses_outputs\03513000

Please note:

(1) The esmated flows are provided in units of cubic feet per second per square mile drainage area
(cfsm).

(2) The climac year is the standard period used for low-flow analyses at USGS connuous-record
streamgages. The climac year is from April 1 through March 31, designated by the year in which the
period begins. For example, the 2021 climac year is from April 1, 2021, through March 31, 2022.

Again, please understand the informaon provided in this message is based on a preliminary assessment
and considered provisional, subject to revision pending collecon of future data and further analyses.

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These provisional streamflow stascs are provided via the DWR USGS Low Flows cooperave
agreement between USGS and the N.C. Department of Environmental Quality, Division of Water
Resources.

Hope this informaon is helpful.

Thank you.

Curs Weaver

J. Curtis Weaver, Hydrologist, PE Email: [e-mail]
USGS South Atlantic Water Science Center Online: https://www.usgs.gov/centers/sa-water
North Carolina - South Carolina - Georgia
3916 Sunset Ridge Road
Raleigh, NC 27607
Phone: [phone] // Fax: [phone]
From: Albern, Klaus P <[e-mail]>
Sent: Friday, September 2, 2022 7:09 AM
To: [e-mail] <[e-mail]>; [e-mail]
<[e-mail]>
Cc: Albern, Klaus P <[e-mail]>; [e-mail] <[e-mail]>;
Weaver, John C <[e-mail]>; Montebello, Michael J <[e-mail]>; Dowden, Doug
<[e-mail]>; Litzenberger, Krisn S <[e-mail]>; Denard, Derek
<[e-mail]>
Subject: [EXTERNAL] Low-flow request approval

 This email has been received from outside of DOI - Use caution before clicking on links,
opening attachments, or responding.  
Your request has been approved and will be forwarded to USGS. A response from USGS usually takes
7 - 10 business days.
Request Flow Statistic Approval
Request ID: 231
Requestor: Nate Bowe
Requestor e-mail: [e-mail]; [e-mail]
Requestor Phone: [phone]
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Local Government:
Public Water Supply:
Consultant:
Contact:
Reason: Permit
River/Stream: Tuckasegee River
Drainage Area (sq. mi.): 659
Latitude: 35.42246
Longitude: -83.46169
Other Information: Outfall of the Town of Bryson City WW TP, located at 315 Riverview Road, Bryson
City, NC 28713
Statististics: ["7Q10","7Q10 - Winter","30Q2","Average Annual","7Q2"]
Approved by: Albertin, Klaus P