NC0020290_Fact Sheet_20231116

Fact Sheet
NPDES Permit No. NCO020290
Permit Writer/Email Contact: Nick Coco, [e-mail]
Date: October 19, 2023
Division/Branch: NC Division of Water Resources/NPDES Municipal Permitting
Fact Sheet Template: Version 09Jan2017
Permitting Action:
❑X 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 Bumsville/Burnsville Wastewater Treatment Plant (WWTP)
Applicant Address:
P.O. Box 97, Burnsville, NC 28714
Facility Address:
812 Pine Swamp Road, Burnsville, NC 28714
Permitted Flow:
0.8 MGD
Facility Type/Waste:
MAJOR Municipal; 91.1% domestic, 0.9% industrial*
Facility Class:
Grade III Biological Water Pollution Control System
Treatment Units:
Headworks including a fine screen assembly, aerated grit chamber, and
bar screens, Comminuting device, Splitter box, Contact tanks,
Reaeration tanks, Dual circular clarifiers, Chlorine contact tanks,
Dechlorination, Post reaeration basin, Aerobic digesters, Sludge belt
filter press, Sludge drying beds, Diesel standby generator
Pretreatment Program (Y/N)
Y; STMP
County:
Yancey
Region
Asheville
*Based off of permitted flows.
Briefly describe the proposed permitting action and facility background: The Town of Burnsville has
applied for an NPDES permit renewal at 0.8 MGD for the Burnsville WWTP. This facility serves a
population of approximately 4,000 residents, as well as 1 non -categorical significant industrial user (SIU:
Altec Industries, Inc. - SIC 3713—Truck and Bus Bodies; 40 CFR 433 Categorical, Metal Finisher) via a
Division -approved pretreatment program. Treated domestic and industrial wastewater is discharged into
the Cane River, a class C; Tr waterbody in the French Broad River Basin. Outfall 001 is approximately 32
miles upstream of the NC/Tenn state border.
In their application, the Town noted that the volume of daily I&I is unknown. The Town hired McGill
and Associates (McGill) to study I&I at the facility and McGill reported that as much as 64% of the flow
at the plant over a 1-year period may be due to I&I. The Town is working with McGill and DWR on an
Page 1 of 12

established SOC (SC21-003, signed 12/06/2021, attached) to complete necessary upgrades for I&I
mitigation. The Town identified multiple improvement projects to be completed in 2024 and 2026,
including refurbishing the sewer interceptors in both sides of the collection system, installing a new gear
drive, and upgrading the plant headworks, blower electric system and laboratory.
Sludge disposal: Sludge is currently dewatered and sent to the sludge compost facility (WQ0002834).
2. Receiving Waterbody Information:
Receiving Waterbody Information
Outfalls/Receiving Stream(s):
Outfall 001 —Cane River
Stream Segment:
7-3-(13.7)
Stream Classification:
C; Tr
Drainage Area (mi2):
56.9
Summer 7Q10 (cfs)
19
Winter 7Q10 (cfs):
26
30Q2 (cfs):
40
Average Flow (cfs):
97
IWC (% effluent):
6
2022 303(d) listed/parameter:
Not listed (2022 Integrated Report lists Fish Community as
Data Inconclusive)
Subject to TMDL/parameter:
Yes- State wide Mercury TMDL implementation.
Basin/HUC:
French Broad River/ 06010108
USGS Topo Quad:
D9NE
3. Effluent Data Summary
Effluent data for Outfall 001 is summarized below for the period of January 2019 through March 2023.
Table 1. Effluent Data Summary Outfall 001
Permit
Parameter
Units
Average
Max
Min
Limit
Flow
MGD
0.65
4.79
0.0684
MA 0.8
WA 45.0
BOD
mg/1
15.0
77
< 2
MA 30.0
Monitor &
NH3N
mg/1
4.3
18.3
< 0.2
Report
WA 45.0
TSS
mg/1
7.7
61
< 2
MA 30.0
6.0 > pH <
PH
SU
6.4
7.66
5.64
9.0
(geometric)
Fecal coliform
#/100 ml
(geoI
> 6000
< 1
WA 400
I
MA 200
DM 28.0
TRC
µg/l
17.6
48
< 1
(< 50
compliance)
Monitor &
Temperature
° C
15.5
30.3
7
Report
Page 2 of 12

Monitor &
TN
mg/1
10.6
12.41
8.73
Report
TP
mg/l
1.6
2.1
0.862
Monitor &
Report
Oil & Grease
mg/1
5
7.6
2
WA 60.0
MA 30.0
Total Lead
µg/l
< 5
< 10
< 1
Monitor &
Report
Total Copper
µg/l
3.8
14
< I
Monitor &
Report
Total Silver
µg/1
< 5
< 10
< I
Monitor &
Report
Total Hardness
mg/1
31.8
79.9
g
Monitor &
Report
MA -Monthly Average, WA -Weekly Average, DM -Daily Maximum, DA=Daily Average
Notification of imposition of Sewer Line Moratorium was provided to the Town of Burnsville for the
Burnsville WWTP on February 11, 2020, with the statutory moratorium taking effect 45 days later. The
average daily flow from January 2019 through March 2023 was 0.65 MGD, which is 85% of the
permitted flow of 0.8 MGD. Annual flow data from January 2019 through March 2023 has been
summarized in Table 2 below.
Table 2. Annual Effluent Flow Data Summary
Year
Flow [MGD]
Average
Max
Min
2019
0.66
1.4
0.0684
2020
0.83
1.936
0.354
2021
0.58
1.288
0.229
2022
0.52
4.79
0.219
2023
0.63
4.36
0.415
As described in the facility background section above, McGill conducted an I&I study on behalf of the
Town and reported that as much as 64% of the flow at the plant over a 1-year period may be due to I&I.
The Town is working with McGill and DWR to complete necessary upgrades for I&I mitigation as
required in SOC SC21-003. The Town has identified multiple improvement projects to be completed in
2024 and 2026, including refurbishing the sewer interceptors in both sides of the collection system,
installing a new gear drive, and upgrading the plant headworks, blower electric system and laboratory.
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 does not require instream monitoring; no data are available for review.
Instream monitoring for DO, Fecal Coliform, Temperature, Conductivity, Ammonia and pH was required
beginning June 2008 due to concerns of plant upsets, observed stream impacts and effluent violations.
Page 3 of 12

This increased monitoring was reverted in November 2008 after reviewed plant -submitted information
demonstrated three months of substantial compliance and significantly improved WWTP performance.
As the facility discharges into classified Trout waters, instream temperature monitoring has been added.
Instream monitoring for ammonia and pH has been added to the permit. Please see Ammonia and Total
Residual Chlorine Limitations for more information.
Upstream and downstream samples shall be grab samples collected 1/week. Weekly monitoring has been
deemed appropriate given the size of the discharge relative to the receiving stream. Instream sampling
shall be conducted at least 50 feet upstream of the discharge and at least 500 feet from the discharge.
The permit does require quarterly upstream hardness monitoring. The facility reported an average
upstream hardness of 16.0 mg/L (range 5.1 mg/L — 67.4 mg/L).
Is this facility a member of a Monitoring Coalition with waived instream monitoring (YIN): NO
Name of Monitoring Coalition: NA
5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): The facility reported three
BOD limit violations and seven flow limit violations in 2020 resulting in enforcement. In 2023, the
facility reported one pH limit violation resulting in enforcement. The facility is currently under SOC
SC21-003 for improvements to the Town's collection system and WWTP.
Summarize the compliance record with aquatic toxicity test limits and any second species test results
(past 5 years): The facility passed 17 of 17 quarterly chronic toxicity tests as well as all 4 second species
chronic toxicity tests from March 2019 to March 2023.
Summarize the results from the most recent compliance inspection: The last facility inspection conducted
in December 2019 reported that the facility was compliant. In January 2020, the Asheville Regional
Office (ARO) was notified that draw -down of the 0.3 MGD contact stabilization unit for a planned repair
of the clarifier revealed non -repairable structural failure of the clarifier. This was verified by Burnsville's
consulting engineer: McGill Associates. The integrated nature of this train renders the entire train non -
operable and non -repairable. ARO verified the structural failure and discussed mitigation measures with
the Town. More on this technical support visitation may be found in the attached Inspection Report.
In their April 2023 through June 2023 Quarterly Report as part of SOC21-003, the Town notified the
Division of receipt of additional funding bringing the total funding for Burnsville WWTP improvements
to $8.85 million, as well as the completion of a contract with WithersRavenel as the Town's Engineering
Firm of choice for WWTP improvements. With the additional funding, the Town has altered the scope of
work for rehabilitation of the Burnsville WWTP to replace the existing 0.3 MGD contact stabilization unit
with a 0.5 MGD treatment unit instead of a 0.3 MGD unit. The new plan also includes rehabilitation of
the existing 0.5 MGD treatment unit.
The last pretreatment inspection conducted in January 2023 reported that the facility was compliant.
6. Water Quality -Based Effluent Limitations (WQBELs)
Dilution and MixingZones
In accordance with 15A NCAC 213.0206, 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).
Page 4 of 12

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 15,4 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/1 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 existing
limitations for BOD5 at TBELs and have existed in the permit since its inception in 1981. In 1996,
modeling was conducted to verify that the TBELs were appropriate as part of a wasteload allocation
prepared during the renewal process. No changes are proposed.
Note: The 1996 modeling verified no limit or monitoring requirement was necessary for dissolved
oxygen.
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/1(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/1) and capped at 28 ug/1(acute impacts). Due to analytical issues, all TRC values
reported below 50 ug/1 are considered compliant with their permit limit.
Describe any proposed changes to ammonia and/or TRC limits for this permit renewal: TRC limits have
been reviewed in the attached WLA and have been found to be protective. No changes are proposed.
The current permit does not set limitations for ammonia. Ammonia requirements have been reviewed in
the attached WLA for toxicity. Based on this review, a monthly average ammonia limit of 13.0 mg/L has
been proposed. A weekly average limit has been determined at a 3:1 ratio of weekly average to monthly
average, based on the 2002 Implementation Policy for Permits with Monthly Average NH3-N Limits. As
the weekly average limit for ammonia is greater than 35.0 mg/L, the weekly average limit has been
capped at 35.0 mg/L. Effluent data from January 2019 through March 2023 has been compared to the
proposed limitation in Figure 1 below.
Page 5 of 12

Effluent Ammonia versus Proposed Limit
0
10
•
M
•
+�+
8
C
CV
V
6
•
o
U
4
•
•
• •
••
E
Q
2
•
••
••
•
•
•••
0 I I 1
10/27/2018 7/4/2019 3/10/2020 11/15/2020 7/23/2021 3/30/2022 12/5/2022 8/12/2023
Date
• Monthly Average Effluent Ammonia Monthly Average Limit Proposed
Figure 1. Comparison of Monthly Average Limit to Effluent Data
No violation of the proposed monthly average limit was observed and no individual sample was reported
at a concentration greater than the proposed weekly average limit during the period reviewed. As such, a
compliance schedule for total ammonia limits is not considered necessary.
Per the July 2022 U.S. Fish and Wildlife Service report on the Appalachian Elktoe, "the Cane River
formerly contained a functional subpopulation of Appalachian elktoe but following a chemical spill in
2008 associated with the Town of Burnsville Wastewater Treatment Plant near the upper end of
distribution for Appalachian elktoe in the Cane River, the population died off and has not recovered. The
wastewater plant has continued to have spills of raw sewage and equipment failures that likely contributes
to the lack of rebound in 11 the population. Gravel mining further up the river may also contribute to
limited recovery of this subpopulation. This subpopulation is currently part of reintroduction efforts by
the NCWRC, but the population viability remains in question due to habitat degradation." Future
evaluation of the recovery status of the endangered Appalachian elktoe may result in reassessment of
ammonia requirements outlined in permit NCO020290 for the Burnsville WWTP. To aid in future
assessments, instream monitoring for ammonia, pH and temperature has been added to the permit.
Reasonable Potential Analysis (RPA) for Toxicants
If applicable, conduct RPA analysis and complete information below.
The need for toxicant limits is based upon a demonstration of reasonable potential to exceed water quality
standards, a statistical evaluation that is conducted during every permit renewal utilizing the most recent
effluent data for each outfall. The RPA is conducted in accordance with 40 CFR 122.44 (d) (i). The NC
RPA procedure utilizes the following: 1) 95% Confidence Level/95% Probability; 2) assumption of zero
background; 3) use of detection limit for "less than" values; and 4) streamflows used for dilution
consideration based on 15A NCAC 2B.0206. Effective April 6, 2016, NC began implementation of
dissolved metals criteria in the RPA process in accordance with guidance titled NPDES Implementation of
Instream Dissolved Metals Standards, dated June 10, 2016.
A reasonable potential analysis was conducted on effluent toxicant data collected between January 2019
and March 2023. Pollutants of concern included toxicants with positive detections and associated water
Page 6 of 12

quality standards/criteria. Based on this analysis, the following permitting actions are proposed for this
permit:
• Effluent Limit with Monitoring. The following parameters will receive a water quality -based
effluent limit (WQBEL) since they demonstrated a reasonable potential to exceed applicable
water quality standards/criteria: Total Silver (MA 0.97 ug/L, DM 4.18 ug/L)*
• MonitoringOnly. nly. The following parameters will receive a monitor -only requirement since they
did not demonstrate reasonable potential to exceed applicable water quality standards/criteria,
but the maximum predicted concentration was >50% of the allowable concentration: None
• No Limit or Monitoring: The following parameters will not receive a limit or monitoring, since
they did not demonstrate reasonable potential to exceed applicable water quality
standards/criteria and the maximum predicted concentration was <50% of the allowable
concentration: Total Copper, Total Lead, Oil and Grease
• POTW Effluent Pollutant Scan Review: Three effluent pollutant scans (2019, 2020, 2021) were
evaluated for additional pollutants of concern.
o The following parameter(s) will receive a water quality -based effluent limit (WQBEL)
with monitoring, since as part of a limited data set, two samples exceeded the allowable
discharge concentration: None
o The following parameter(s) will receive a monitor -only requirement, since as part of a
limited data set, one sample exceeded the allowable discharge concentration: None
o The following parameters will not receive a limit or monitoring, since they did not
demonstrate reasonable potential to exceed applicable water quality standards/criteria and
the maximum predicted concentration was <50% of the allowable concentration: Total
Arsenic, Total Beryllium, Total Cadmium, Total Phenolic Compounds, Total Cyanide,
Total Nickel, Total Selenium, Total Zinc
*Total Silver monitoring shall be conducted using a PQL < 1 ug/L
The current permit sets limits and weekly monitoring for Oil and Grease. The facility reported 3
detections during the period reviewed, with the highest reported value of 15 mg/L occurring during the
2019 effluent pollutant scan. As only one detection was at a level at 50% of the chronic allowable
discharge concentration, the limits and monitoring requirements for Oil and Grease have been removed.
If applicable, attach a spreadsheet of the RPA results as well as a copy of the Dissolved Metals
Implementation Fact Sheet for freshwater/saltwater to this Fact Sheet. Include a printout of the RPA
Dissolved to Total Metal Calculator sheet if this is a Municipality with a Pretreatment Program.
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: A chronic WET limit at 6% effluent will continue on a
quarterly frequency.
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
Page 7 of 12

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/1) 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/1) and/or if any individual value exceeds a TBEL
value of 47 ng/l.
Table 3. Mercury Effluent Data Summary
2023
# of Samples
3
Annual Average Conc. n /L
1.9
Maximum Conc., n /L
2.41
TBEL, n /L
47
WQBEL, n /L
195.9
Describe proposed permit actions based on mercury evaluation: The Town had not conducted low level
mercury testing using EPA Method 1631E at the time the renewal application was submitted. Upon
Division request, the Town conducted 3 sampling events for low level mercury in July 2023. Since no
annual average mercury concentration exceeded the WQBEL, and no individual mercury sample
exceeded the TBEL, no mercury limit is required. Since the facility is < 2.0 MGD facility in capacity, no
mercury minimization plan (MMP) special condition is required.
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: As required by Session
Law 2018-5, Senate Bill 99, Section I LI r), every applicant shall submit documentation of any additional
pollutants for which there are certified methods with the permit application if their discharge is
anticipated via a Chemical Addendum to NPDES Application table. As an attachment to the permit
application, the Town informed the Division that no monitoring for additional pollutants has been
conducted (see attached chemical addendum) and therefore no additional pollutants of concern have been
identified.
The Burnsville WWTP received influent wastewater from 1 CIU which is a metal finisher (Altec
Industries, Inc.) Per request by the Division, the Town conducted 3 sampling events for 1,4-Dioxane of
their CIU per week for a 2-week span, resulting in 6 total Altec Industries, Inc. samples. The samples
were collected on June 27, July 5, July 6, July 7, July 10, and July 11, 2023. All samples were reported as
non -detect at < 2 µg/L. As the sole industry in the Town's pretreatment program reported no detectable
levels of 1,4-dioxane during their 2-week sampling event, 1,4-dioxane requirements have not been added
to the permit at this time.
As the Burnsville WWTP discharges approximately 32 miles upstream of the NC/Tenn state border,
monitoring of PFAS chemicals will be added to the permit at a frequency of quarterly. Since an 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 CFR136 published in the Federal Register. This date may be extended upon request and if
there are no NC -certified labs.
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
Page 8 of 12

If applicable, describe any compliance schedules proposed for this permit renewal in accordance with
15A NCAC 2K 0107( c)(2)(B), 40CFR 122.47, and EPA May 2007 Memo: As total silver demonstrated
reasonable potential to exceed the facility's allowable discharge concentration based on state surface
water standards, monthly average and daily maximum limits have been put in the permit for total silver.
After discussing the limits with the Permittee, the Permittee requested a schedule of compliance to
provide time to locate issues and come into compliance with the new limits. A 3-year compliance
schedule has been put in the permit. Within 1 year of the permit's effective date, the Permittee shall
submit to DWR an Action Plan for Division approval, summarizing the strategy or actions to be taken to
achieve compliance with the total silver limitations. The plan will include specific dates for completion or
implementation of each action. Within 2 years of the permit's effective date, the Permittee shall submit a
report to the Division summarizing actions taken in accordance with the Action Plan. The Town shall
achieve compliance with total silver limitations within 3 years of the permit's effective date.
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
BODS/TSS for Monthly Average, and 45 mg/l for BODS/TSS for Weekly Average). YES
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA
Are 85% removal requirements for BOD51TSS included in the permit? YES; Overall removal of BOD
and TSS was > 85% during the period reviewed. However, removal rates for both parameters dropped
below 85% on occasion during the period reviewed, most notably in 2020.
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: NA
9. Antibacksliding Review:
Sections 402(o)(2) and 303(d)(4) of the CWA and federal regulations at 40 CFR 122.44(1) 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): Yes
If YES, confirm that antibacksliding provisions are not violated: As only one detection was at a level at
50% of the chronic allowable discharge concentration, the limits and monitoring requirements for Oil and
Grease have been removed. Additionally, monitoring has been removed for total copper and total lead as
the reasonable potential analysis demonstrated no reasonable potential for excursions above copper and
lead surface water standards.
Page 9 of 12

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 213.0500; 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.
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 4. Current Permit Conditions and Proposed Changes Outfall 001
Parameter
Current Permit
Proposed Change
Basis for Condition/Change
Flow
MA 0.8 MGD
No change
15A NCAC 2B .0505
BOD5
MA 30.0 mg/l
No change
TBEL. 1996 Modeling confirmation for
WA 45.0 mg/l
applicability of TBEL; Surface Water
Monitor and report
Monitoring, 15A NCAC 2B. 0508
3/week
NH3-N
Monitor and report
MA 13.0 mg/l
WQBEL. 2023 WLA; Surface Water
3/week
WA 35.0 mg/1
Monitoring, 15A NCAC 2B. 0508
Monitor and
report 3/week
TSS
MA 30.0 mg/1
No change
TBEL. Secondary treatment standards/40
WA 45.0 mg/1
CFR 133 / 15A NCAC 213 .0406;
Monitor and report
Surface Water Monitoring, 15A NCAC
3/week
2B. 0508
Fecal coliform
MA 200 /100ml
No change
WQBEL. State WQ standard, 15A
WA 400 /100ml
NCAC 213 .0200; Surface Water
Monitor and report
Monitoring, 15A NCAC 2B. 0500
3/week
Temperature
Monitor and Report Daily
No change
Surface Water Monitoring, 15A NCAC
2B. 0508
pH
6 — 9 SU
No change
WQBEL. State WQ standard, 15A
Monitor and Report
NCAC 213 .0200; 15A NCAC 02B .0500
3/week
Total Residual
DM 28 ug/L
No change
WQBEL. 2023 WLA. Surface Water
Chlorine
Monitor and Report
Monitoring, 15A NCAC 2B. 0500
3/week
Page 10 of 12

TKN
No requirement
Monitor and
For calculation of TN
Report semi-
annually
Nitrate +
No requirement
Monitor and
For calculation of TN
Nitrite
Report semi-
annually
Total Nitrogen
Monitor and Report semi-
No change
Surface Water Monitoring, 15A NCAC
annually
2B. 0500
Total
Monitor and Report semi-
No change
Surface Water Monitoring, 15A NCAC
Phosphorus
annually
2B.0500
Oil & Grease
MA 30.0 mg/L
Remove
Based on Data Review and RPA; No RP,
WA 60.0 mg/L
requirements
single value reported at 50% Allowable
Monitor and Report
Cw in 2019 - no limit or monitoring
Weekly
Total Copper
Monitor and report
Remove
Based on results of Reasonable Potential
Quarterly
requirement
Analysis (RPA); No RP, Predicted Max
< 50% of Allowable Cw - No
Monitoring required
Total Lead
Monitor and Report
Remove
Based on results of Reasonable Potential
Quarterly
requirement
Analysis (RPA). No RP, Predicted Max
< 50% of Allowable Cw - No
Monitoring required
Total Silver
Monitor and Report
MA 0.97 ug/L
Based on results of Reasonable Potential
Quarterly
DM 4.18 ug/L
Analysis (RPA); RP shown - apply
Monitor and
Monthly Monitoring with Limit
Report Monthly
3-year schedule of
compliance
Total Hardness
Quarterly monitoring
No changes
Hardness -dependent dissolved metals
Upstream and in Effluent
water quality standards approved in 2016
Add quarterly
Evaluation of PFAS contribution:
PFAS
No requirement
monitoring with
discharges above state border;
delayed
Implementation delayed until after EPA
im lementation
certified method becomes available.
Toxicity Test
Chronic limit, 6%
No change
WQBEL. No toxics in toxic amounts.
effluent
15A NCAC 2B.0200 and 15A NCAC
213.0500
Effluent
Three times per permit
No change;
40 CFR 122
Pollutant Scan
cycle
conducted in
2025, 2026, 2027
Instream
No requirement
Monitor and
Surface Water Monitoring, 15A NCAC
Monitoring
Report
2B. 0508 — Trout waters; verification of
temperature, pH
no impact on stream and endangered
and ammonia
species; assessment of site -specific
1/week
ammonia requirements
Electronic
Electronic Reporting
No change
In accordance with EPA Electronic
Reporting
Special Condition
I Reporting Rule 2015.
MGD — Million gallons per day, MA - Monthly Average, WA — Weekly Average, DM — Daily Max
Page 11 of 12

13. Public Notice Schedule:
Permit to Public Notice: 9/6/2023
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 nick.cocogdeq.nc.gov.
15. Fact Sheet Addendum (if applicable):
The draft was submitted to the Town of Burnsville, EPA Region IV, the Division of Water Resources'
Asheville Regional Office, Aquatic Toxicology Branch, Pretreatment Unit, and Operator Certification
Program, the North Carolina Wildlife Resources Commission, US Fish and Wildlife Services, and
Tennessee Department of Environment and Conservation for review. Comments were received from the
North Carolina Wildlife Resources Commission and US Fish and Wildlife Services on 10/20/2023
concurring with the Division's addition of instream monitoring for ammonia, pH and temperature and
requesting the Division continue to consult with the two parties regarding future actions with this permit.
No comments were received from any other party.
Were there any changes made since the Draft Permit was public noticed (Yes/No): YES
If Yes, list changes and their basis below:
• PFAS monitoring has been added to Section A.(1.) Effluent Limitations and Monitoring
Requirements to reflect the requirements specified in Special condition A.(5.) PFAS Monitoring
Requirement.
16. Fact Sheet Attachments (if applicable):
• RPA Spreadsheet Summary
• NPDES Implementation of Instream Dissolved Metals Standards — Freshwater Standards
• NH3/TRC WLA Calculations
• BOD & TSS Removal Rate Calculations
• Mercury TMDL Calculations
• Monitoring Frequency Reduction Evaluation
• POC Review Form
• WET Testing and Self -Monitoring Summary
• Compliance Inspection Report
• Requested Additional Information
• Chemical Addendum
• Requested Sampling
Page 12 of 12

AFFIDAVIT OF PUBLICATION
-September 6, 2023--Page 9 �ment
E
LEGAL NOTICE
Public Notice
North Carolina Environmental
Management Commission/
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notice of Intent to Issue
a NPDES Wastewater Permit
NCO020290 Burnsville WWTP
The North Carolina Environ-
mental Management Commis-
sion proposes to issue a NPDES
wastewater discharge permit
to the person(s) listed below.
Written comments regarding
the proposed permit will be
accepted until 30 days after the
publish date of this notice. The
Director of the NC Division of
Water Resources (DWR) may
hold a public hearing should
there be a significant degree
of public interest. Please mail
comments and/or information
requests to DWR at the above
address. Interested persons
may visit the DWR at 512 N.
Salisbury Street, Raleigh, NC
27604 to review the information
on file. Additional information
on NPDES permits and this
notice may be found on our
website: https://deq.nc.gov/
public -notices -hearing s,or by
calling [phone].The
Town of Burnsville [PO Box
97, Burnsville, NC 28714]
has requested renewal of NP-
DES permit NCO020290 for its
Burnsville Wastewater Treat-
ment Plant, located in Yancey
County. This permitted facility
discharges treated municipal
and industrial wastewater to
the Cane River, a class C;Trout
water in the French Broad River
Basin. Currently ammonia,
fecal coliform, pH, total re-
sidual chlorine and total silver
are water quality limited. This
discharge may affect future al-
locations in this segment of the
Cane River.
Published September 6,
_2W 3
NORTH CAROLINA
YANCEY COUNTY
Before the undersigned, a Notary Public of said County and
State, duly commissioned, qualified, and authorized by law to
administer oaths, personally appeared
Anna Webb
who being first duly sworn, deposes and says: that
he (she) is Business Manager
(Owner, partner, publisher, or other office or employee
authorized to make this affidavit)
of The Yancey Common Tunes Journal (The Yancey Journal
Inc.) published, issued, and entered as second class mail in
the Town of Burnsville in said County and State; that he (she)
is authorized to make this affidavit and sworn statement; that
the notice or other advertisement, a true copy of which is
attached hereto, was published in The Yancey Common Times
Journal (The Yancey Journal Inc.) on the following dates:
September 6, 2023
and that the said newspaper in which such notice, paper,
document, or advertisement was published was, at the time of
each and every such publication, a newspaper meeting all of
the requirements and qualifications of Section 1-597 of the
General Statutes of North Carolina and was a qualified
newspaper within the meaning of Section 1-597 of the
General Statutes of North Carolina.
This 7 dayof September 2023
(Signature of person making affidavit)
Sworn to an bscribed before me, this
,--7,,
day of
1�Vl/ilJ lYYiEV
My Commission e

® North Carolina Wildlife Resources Commission 9
Cameron Ingram, Executive Director
October 20, 2023
Mr. Nick Coco
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC, 27699
SUBJECT: NPDES Permit NC0020290 Renewal
Yancey County
Dear Mr. Coco:
Biologists with the North Carolina Wildlife Resources Commission (NCWRC) reviewed
information concerning the proposed National Pollutant Discharge Elimination System (NPDES)
permit renewal for the Town of Burnsville's wastewater treatment plant (NC0020290).
Comments from the NCWRC on the permit action are provided under provisions of the Clean
Water Act of 1977 (as amended), Fish and Wildlife Coordination Act (48 Stat. 401, as amended;
16 U.S.C. 661-667d), North Carolina General Statutes (G.S. 113-131 et seq.), and North
Carolina Administrative Code 15A NCAC 10I.0102.
The Town is operating under a Special Order of Consent (SOC), as it has been unable to comply
with its collection system permit and NPDES permit due to frequent sanitary sewer overflows
(SSOs) and NPDES permit flow limit exceedances. These problems have resulted in releases of
untreated or partially treated sewage to Pine Swamp Creek and the Cane River. The Cane River
is part of the Cane River Aquatic Habitat, a NC Natural Heritage Program natural area rated
Very High due to its ecological importance and richness of rare species it supports, including
Appalachian Elktoe [Alasmidonta raveneliana, US and NC Endangered (E)], Eastern Hellbender
[Cryptobranchus alleganiensis, US Federal Species of Concern (FSC), NC Special Concern
(SC)], Wavy -rayed Lampmussel (Lampsilis fasciola, NC SC), Striped Shiner (Luxilus
chrysocephalus, NC SC), and Blotched Chub (Erimystax insignis, NC Significantly Rare).
The SOC stipulates that the Town rehabilitate and upgrade the Burnsville Collection System and
WWTP. Numerous improvements to the sewer collection system, associated pump stations, and
WWTP have been made or are scheduled, and a GIS stormwater mapping project has been
implemented. The NCWRC supports efforts to resolve the chronic issues with SSOs, difficulties
for the Burnsville WWTP in treating waste, and other issues with the Burnsville Collection
System. This should benefit the Cane River and the species it supports.
Mailing Address: Habitat Conservation • 1721 Mail Service Center • Raleigh, NC 27699-1721
Telephone: [phone] • Fax: [phone]

NPDES NCO020290 Renewal Page 2 October 20, 2023
Yancey County
The NPDES permit renewal language includes new monitoring requirements for
ammonia. Both effluent and in -stream monitoring will be required. Weekly in -stream
monitoring of pH, temperature, and ammonia would be required, which we support in
order to determine if an in -stream ammonia limit is needed. For reference, the agreed
upon ammonia limits for the Micaville WWTP [specified by the US Fish and Wildlife
Service (USFWS) in their 2014 Biological Opinion] are 4.3 mg/L for a single in -stream
monitoring event or 0.3 mg/L from two consecutive in -stream monitoring events within a
30-day period. The Cane River and South Toe River bear many similarities in watershed
land use, geology, habitat, and aquatic fauna, and these limits are likely similar to what
could be applicable to the Cane River. We ask that the NC Division of Water Resources
(NCDWR) work with both the USFWS and NCWRC on future ammonia monitoring and
possible permit limits.
We urge NC Division of Water Resources to consult with the USFWS on this permit
renewal, given the involvement of the USFWS in the past with the Burnsville WWTP
and its impacts to the Cane River and the federally listed Appalachian Elktoe.
Thank you for the opportunity to review and comment further on this permit action. Please
contact Andrea Leslie at [phone] if there are any questions about these comments.
Sincerely,
Andrea Leslie
Mountain Habitat Conservation Coordinator
ec: Bryan Tompkins, US Fish and Wildlife Service

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Table 1. Project Information
❑ CHECK IF HQW OR ORW WQS
Facility Name
Burnsville WWTP
WWTP/WTP Class
III
NPDES Permit
NCO020290
Outfall
001
Flow, Qw (MGD)
0.800
Receiving Stream
Cane River
HUC Number
06010108
Stream Class
❑ Apply WS Hardness WQC
C;Tr
7Q10s (cfs)
19.000
26.00
7Q10w (cfs)
30Q2 (cfs)
40.00
QA (cfs)
97.00
1 Q10s (cfs)
15.69
Effluent Hardness
31.84 mg/L (Avg)
Upstream Hardness
25 mg/L (Avg)
Combined Hardness Chronic
25.42 mg/L
Combined Hardness Acute
25.5 mg/L
Data Source(s)
Default upstream hardness of 25 mg/L used due to
average of reported DMR data being < 25 mg/L.
❑ CHECK TO APPLY MODEL
REQUIRED DATA ENTRY
Par01
Par02
Par03
Par04
Par05
Par06 E
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Par23
Par24
Table 2. Parameters of Concern
Name WQS Type Chronic Modifier Acute PQL Units
Arsenic
Aquactic Life
C
150
FW
340
ug/L
Arsenic
Human Health
Water Supply
C
10
HH/WS
N/A
ug/L
Beryllium
Aquatic Life
NC
6.5
FW
65
ug/L
Cadmium
Aquatic Life
NC
0.5973
FW
3.2962
ug/L
Chlorides
Aquatic Life
NC
230
FW
mg/L
Chlorinated Phenolic Compounds
Water Supply
NC
1
A
ug/L
Total Phenolic Compounds
Aquatic Life
NC
300
A
ug/L
Chromium III
Aquatic Life
NC
119.3459
FW
919.9056
ug/L
Chromium VI
Aquatic Life
NC
11
FW
16
pg/L
Chromium, Total
Aquatic Life
NC
N/A
FW
N/A
pg/L
Copper
Aquatic Life
NC
7.9933
FW
10.6696
ug/L
Cyanide
Aquatic Life
NC
5
FW
22
10
ug/L
Fluoride
Aquatic Life
NC
1,800
FW
ug/L
Lead
Aquatic Life
NC
2.9972
FW
77.1922
ug/L
Mercury
Aquatic Life
NC
12
FW
0.5
-,^"
Molybdenum
Human Health
NC
2000
HH
ug/L
Nickel
Aquatic Life
NC
37.7585
FW
340.8814
pg/L
Nickel
Water Supply
NC
25.0000
WS
N/A
pg/L
Selenium
Aquatic Life
NC
5
FW
56
ug/L
Silver
Aquatic Life
NC
0.06
FW
0.3067
ug/L
Zinc
Aquatic Life
NC
128.5307
FW
127.8358
ug/L
Oil & Grease
Human Health
NC
30
HH
45
mg/L
20290 RPA, input
8/25/2023

REASONABLE POTENTIAL ANALYSIS
H1
I Effluent Hardness
Date
1 3/6/2019
2 6/3/2019
3 9/10/2019
4 12/3/2019
5 3/3/2020
6 6/9/2020
7 9/17/2020
8 12/8/2020
9 3/1/2021
10 6/16/2021
11 9/14/2021
12 12/1 /2021
13 3/1/2022
14 6/8/2022
15 9/7/2022
16 12/19/2022
17 3/29/2023
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Data
BDL=1/2DL
Results
51.3
51.3
Std Dev.
10.5
10.5
Mean
8
8
C.V.
67.2
67.2
n
19.8
19.8
10th Per value
18.4
18.4
Average Value
26.5
26.5
Max. Value
20.1
20.1
8.47
8.47
8.88
8.88
57.9
57.9
61.6
61.6
8.9
8.9
39
39
10.1
10.1
44.7
44.7
79.9
79.9
H2
Use "PASTE SPECIAL
Values" then "COPY"
Maximum data
points = 58
24.1196 1
31.8382 2
0.7576 3
17 4
8.72 mg/L 5
31.84 mg/L 6
79.90 mg/L 7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Upstream Hardness
Date Data BDL=1/2DL Results
Default 25 25 Std Dev.
Mean
C.V.
n
10th Per value
Average Value
Max. Value
Use "PASTE SPECIAL
Values" then "COPY"
Maximum data
points = 58
N/A
25.0000
0.0000
1
25.00 mg/L
25.00 mg/L
25.00 mg/L
20290 RPA, data
- 1 - 8/25/2023

REASONABLE POTENTIAL ANALYSIS
Par01 & Par02
Date Data
1 12/17/2019 <
2 10/7/2020 <
3 8/21 /2021 <
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Arsenic
BDL=1/2DL
10 5
10 5
10 5
Results
Std Dev.
Mean
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL
Values" then "COPY"
Maximum data
points = 58
0.0000
5.0000
0.6000
3
3.00
5.0 ug/L
15.0 ug/L
-2-
20290 RPA, data
8/25/2023

REASONABLE POTENTIAL ANALYSIS
Par03
Date Data
1 12/17/2019 <
2 10/7/2020 <
3 8/21 /2021 <
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Par04
Use "PASTE SPECIAL
Use "PASTE SPECIAL
Beryllium
Values" then "COPY"
Cadmium
Values" then "COPY"
Maximum data
. Maximum data
points = 58
points = 58
BDL=1/2DL
Results
Date
Data
BDL=1/2DL
Results
5 2.5
Std Dev.
0.0000
1
12/17/2019
<
2 1
Std Dev.
0.0000
5 2.5
Mean
2.5000
2
10/7/2020
<
2 1
Mean
1.0000
5 2.5
C.V. (default)
0.6000
3
8/21/2021
<
2 1
C.V. (default)
0.6000
n
3
4
n
3
5
Mult Factor =
3.00
6
Mult Factor =
3.00
Max. Value
2.50 ug/L
7
Max. Value
1.000 ug/L
Max. Pred Cw
7.50 ug/L
8
Max. Pred Cw
3.000 ug/L
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
<
ERR
53
<
ERR
54
<
ERR
55
<
ERR
56
<
ERR
57
<
ERR
58
<
ERR
20290 RPA, data
-3- 8/25/2023

REASONABLE POTENTIAL ANALYSIS
Par07
Total Phenolic Compounds
Use "PASTE SPECIAL -
Values" then "COPY".
Par10
Maximum data points
= 58
Date
Data BDL=1/2DL
Results
Date Data
1
12/17/2019
< 10 5
Std Dev.
0.0000
1
12/17/2019 <
2
10/7/2020
< 10 5
Mean
5.0000
2
10/7/2020 <
3
8/21/2021
< 10 5
C.V. (default)
0.6000
3
8/21/2021 <
4
n
3
4
5
5
6
Mult Factor =
3.00
6
7
Max. Value
5.0 ug/L
7
8
Max. Pred Cw
15.0 ug/L
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
Use "PASTE SPECIAL
Chromium, Total
Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL
Results
5 2.5
Std Dev.
0.0000
5 2.5
Mean
2.5000
5 2.5
C.V. (default)
0.6000
n
3
Mult Factor =
3.00
Max. Value
2.5 pg/L
Max. Pred Cw
7.5 pg/L
-4-
20290 RPA, data
8/25/2023

REASONABLE POTENTIAL ANALYSIS
Pal
Date Data
1 3/6/2019 <
2 3/11/2019 <
3 6/3/2019 <
4 9/10/2019 <
5 12/3/2019 <
6 3/3/2020 <
7 6/9/2020 <
8 9/17/2020
9 12/8/2020 <
10 3/1/2021
11 4/6/2021
12 6/16/2021
13 9/14/2021
14 12/1/2021 <
15 3/1/2022 <
16 6/8/2022
17 9/7/2022 <
18 12/19/2022
19 3/29/2023
20 12/17/2019
21 10/7/2020
22 8/21 /2021
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Par12
Use "PASTE SPECIAL
Copper Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL Results
1
0.5
Std Dev.
1
0.5
Mean
1
0.5
C.V.
1
0.5
n
1
0.5
1
0.5
Mult Factor =
1
0.5
Max. Value
2
2
Max. Pred Cw
1
0.5
4
4
1.1
1.1
13.1
13.1
2.7
2.7
5
2.5
5
2.5
14
14
5
2.5
5.5
5.5
6.2
6.2
11
11
29
29
2.36
2.36
Cyanide
Date Data
BDL=1/2DL
Results
6.8171
1
12/17/2019 <
5 5
Std Dev.
4.6573
2
10/7/2020 <
5 5
Mean
1.4638
3
8/21/2021 <
5 5
C.V. (default)
22
4
n
5
1.72 6
29.00 ug/L 7
49.88 ug/L 8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL
Values" then "COPY"
Maximum data
points = 58
0.0000
5.00
0.6000
3
3.00
5.0 ug/L
15.0 ug/L
-5-
20290 RPA, data
8/25/2023

REASONABLE POTENTIAL ANALYSIS
Par14
Date
1 3/6/2019 <
2 6/3/2019 <
3 9/10/2019 <
4 12/3/2019 <
5 3/3/2020 <
6 6/9/2020 <
7 9/17/2020 <
8 12/8/2020 <
9 3/1/2021 <
10 6/16/2021
11 9/14/2021 <
12 12/1/2021 <
13 3/1/2022 <
14 6/8/2022 <
15 9/7/2022 <
16 12/19/2022 <
17 3/29/2023 <
18 10/7/2020 <
19 8/21 /2021 <
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Par17 & Par18
use "PASTE
Use "PASTE SPECIAL
SPECIAL -
Lead
values" then "COPY"
Nickel
values" then
Maximum data
"COPY".
points = 58
Maximum data
BDL=1/2DL
Results
Date Data
BDL=1/2DL
Results
points = 58
10
5
Std Dev.
1.6327
1
12/17/2019 <
10 5
Std Dev.
1.7898
10
5
Mean
3.7126
2
10/7/2020 <
10 5
Mean
3.9667
10
5
C.V.
0.4398
3
8/21/2021
1.9 1.9
C.V. (default)
0.6000
10
5
n
19
4
n
3
10
5
5
10
5
Mult Factor =
1.28
6
Mult Factor =
3.00
10
5
Max. Value
5.000 ug/L
7
Max. Value
5.0 pg/L
10
5
Max. Pred Cw
6.400 ug/L
8
Max. Pred Cw
15.0 pg/L
2
1
9
1.54
1.54
10
1
0.5
11
5
2.5
12
5
2.5
13
10
5
14
5
2.5
15
5
2.5
16
5
2.5
17
10
5
18
10
5
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
20290 RPA, data
-6- 8/25/2023

REASONABLE POTENTIAL ANALYSIS
Par19
Selenium
Use "PASTE SPECIAL -
Values" then "COPY' .
Par20
Maximum data points
= 58
Date Data
BDL=1/2DL
Results
Date
Data
1
12/17/2019 <
10 5
Std Dev.
0.0000
1
3/6/2019
<
2
10/7/2020 <
10 5
Mean
5.0000
2
6/3/2019
<
3
8/21/2021 <
10 5
C.V. (default)
0.6000
3
9/10/2019
<
4
n
3
4
12/3/2019
<
5
5
3/3/2020
<
6
Mult Factor =
3.00
6
6/9/2020
<
7
Max. Value
5.0 ug/L
7
9/17/2020
<
8
Max. Pred Cw
15.0 ug/L
8
12/8/2020
<
9
9
3/1/2021
<
10
10
6/16/2021
<
11
11
9/14/2021
<
12
12
12/1/2021
<
13
13
3/1/2022
<
14
14
6/8/2022
<
15
15
9/7/2022
<
16
16
12/19/2022
<
17
17
3/29/2023
<
18
18
12/17/2019
19
19
10/7/2020
20
20
8/21 /2021
<
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
Silver
BDL=1/2DL
Results
1
0.5
Std Dev.
1
0.5
Mean
1
0.5
C.V.
1
0.5
n
1
0.5
1
0.5
Mult Factor =
1
0.5
Max. Value
1
0.5
Max. Pred Cw
2
1
1
0.5
1
0.5
5
2.5
5
2.5
10
5
5
2.5
5
2.5
5
2.5
6
6
2
2
5
2.5
Use "PASTE SPECIAL
Values" then "COPY"
Maximum data
points = 58
1.5927
1.7000
0.9369
20
1.56
6.000 ug/L
9.360 ug/L
-7-
20290 RPA, data
8/25/2023

REASONABLE POTENTIAL ANALYSIS
Par21
Par22
use "PASTE
Use "PASTE SPECIAL
SPECIAL -Values"
Zinc
Values" then "COPY"
Oil & Grease
then "COPY".
. Maximum data
Maximum data
points = 58
points = 58
Date Data BDL=1/2DL
Results
Date
Data
BDL=1/2DL
Results
1
12/17/2019 21 21
Std Dev.
14.8071
1
4/19/2021
7.2
7.2
Std Dev.
1.8533
2
10/7/2020 38 38
Mean
36.5000
2
4/26/2021
7.6
7.6
Mean
2.8845
3
8/21/2021 50.5 50.5
C.V. (default)
0.6000
3
12/17/2019
15
15
C.V.
0.6425
4
n
3
4
3/15/2022
<
5
2.5
n
58
5
5
3/22/2022
<
5
2.5
6
Mult Factor =
3.00
6
3/29/2022
<
5
2.5
Mult Factor =
1.00
7
Max. Value
50.5 ug/L
7
4/5/2022
<
5
2.5
Max. Value
15.0 mg/L
8
Max. Pred Cw
151.5 ug/L
8
4/12/2022
<
5
2.5
Max. Pred Cw
15.0 mg/L
9
9
4/19/2022
<
5
2.5
10
10
4/26/2022
<
5
2.5
11
11
5/3/2022
<
5
2.5
12
12
5/10/2022
<
5
2.5
13
13
5/17/2022
<
5
2.5
14
14
5/24/2022
<
5
2.5
15
15
6/1/2022
<
5
2.5
16
16
6/7/2022
<
5
2.5
17
17
6/14/2022
<
5
2.5
18
18
6/21 /2022
<
5
2.5
19
19
6/28/2022
<
5
2.5
20
20
7/7/2022
<
5
2.5
21
21
7/12/2022
<
5
2.5
22
22
7/19/2022
<
5
2.5
23
23
7/27/2022
<
5
2.5
24
24
8/3/2022
<
5
2.5
25
25
8/9/2022
<
5
2.5
26
26
8/16/2022
<
5
2.5
27
27
8/24/2022
<
5
2.5
28
28
8/30/2022
<
5
2.5
29
29
9/7/2022
<
5
2.5
30
30
9/13/2022
<
5
2.5
31
31
9/20/2022
<
5
2.5
32
32
9/28/2022
<
5
2.5
33
33
10/4/2022
<
5
2.5
34
34
10/11 /2022
<
5
2.5
35
35
10/18/2022
<
5
2.5
36
36
10/25/2022
<
5
2.5
37
37
11 /1 /2022
<
5
2.5
38
38
11 /8/2022
<
5
2.5
39
39
11/15/2022
<
5
2.5
40
40
11 /22/2022
<
5
2.5
41
41
11 /30/2022
<
5
2.5
42
42
12/6/2022
<
5
2.5
43
43
12/13/2022
<
5
2.5
44
44
12/19/2022
<
5
2.5
45
45
12/29/2022
<
5
2.5
46
46
1 /5/2023
<
5
2.5
47
47
1 /10/2023
<
5
2.5
48
48
1/18/2023
<
5
2.5
49
49
1 /24/2023
<
5
2.5
50
50
1 /31 /2023
<
5
2.5
51
51
2/7/2023
<
5
2.5
52
52
2/14/2023
<
5
2.5
53
53
2/21 /2023
<
5
2.5
54
54
3/1 /2023
<
5
2.5
55
55
3/7/2023
<
5
2.5
56
56
3/15/2023
<
5
2.5
57
57
3/21 /2023
<
5
2.5
58
58
3/29/2023
<
5
2.5
20290 RPA, data
-8- 8/25/2023

Burnsville WWTP
Outfall 001
N00020290 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Qw (MGD) =
0.8000
1Q10S (cfs) =
15.69
7Q10S (cfs) =
19.00
7Q10W (cfs) =
26.00
30Q2 (cfs) =
40.00
Avg. Stream Flow, QA (cfs) =
97.00
Receiving Stream:
Cane River HUC 06010108
WWTP/WTP Class: III
IWC% @ 1Q10S =
7.324276432
IWC% @ 7Q10S =
6.126482213
IWC% @ 7Q 1 OW =
4.552129222
IWC% @ 30Q2 =
3.006789525
IW%C @ QA =
1.262214984
Stream Class:
C;Tr
Qw = 0.8 MGD
COMBINED HARDNESS (mg/L)
Acute = 25.5 mg/L
Chronic = 25.42 mg/L
PARAMETER
NC STANDARDS OR EPA CRITERIA
CO
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
J
D
Applied
Chronic Acute
n # Det. Max Pred Cw Allowable Cw
Standard
Acute (FW): 4,642.1
Arsenic
C
150 FW(7Q10s) 340
ug/L
3 0
15.0
Chronic (FW): 2,448.4
C.V. (default)
Max MDL10
Arsenic
C
10 HH/WS(Qavg)
ug/L
Note: n < 9
NO DETECTS
_=
Chronic (HH): 792.3
No RP, Predicted Max < 50% of Allowable Cw - No
Limited data set
Max MDL = 10
Monitoring required
Acute: 887.46
Beryllium
NC
6.5 FW(7Q 1 Os) 65
ug/L
3 0
7.50
Note: n < 9
C.V. (default)
Chronic: 106.10
No RP, Predicted Max < 50% of Allowable Cw - No
Limited data set
NO DETECTS
Max MDL = 5
Monitoring required
Acute: 45.004
Cadmium
NC
0.5973 FW(7Q10s) 3.2962
ug/L
3 0
3.000
Note: n < 9
C.V. (default)
Chronic: 9.750
No RP, Predicted Max < 50% of Allowable Cw - No
Limited data set
NO DETECTS
Max MDL = 2
Monitoring required
Acute: NO WQS
Total Phenolic Compounds
NC
300 A(30Q2)
ug/L
3 0
15.0
Note: n < 9
C.V. (default)
Chronic: 9,977.4
No RP, Predicted Max < 50% of Allowable Cw - No
Limited data set
NO DETECTS
Max MDL = 10
Monitoring required
Acute: 12,559.7
Chromium III
NC
119.35 FW(7Q10s) 919.91
µg/L
0 0
N/A
Chronic: -----1 948.0 -
----------------------------
Acute: 218.5
Chromium VI
NC
11 FW(7Q10s) 16
µg/L
0 0
N/A
Chronic:----- 179.5--
----------------------------
a: No monitoring required if all Total Chromium
Chromium, Total
NC
µg /L
3 0
7.5
Max reported value 2.
-5 P -
samples are < 5 pg/L or Pred. max for Total Cr is <
Note: n < 9
C.V. (default)
allowable Cw for Cr VI.
Limited data set
NO DETECTS
Max MDL = 5
Acute: 145.67
Copper
NC
7.9933 FW(7Ql Os) 10.6696
ug/L
22 11
49.88
Chronic: 130.47
No RP, Predicted Max < 50% of Allowable Cw - No
No value > Allowable Cw
Monitoring required
Acute: 300.4
Cyanide
NC
5 FW(7010s) 22
10
ua/L
3 0
15.0
Note: n < 9
C.V. (default)
_ _ _ _ _ _ _ _ _ _ _ _
Chronic: 81.6
_ _ _ _ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50% of Allowable Cw - No
Limited data set
NO DETECTS
Max MDL = 10
Monitoring required
Acute: 1,053.922
Lead
NC
2.9972 FW(7Q l Os) 77.1922
ug/L
19 1
6.400
Chronic: 48.922
No RP, Predicted Max < 50% of Allowable Cw - No
20290 RPA, rpa
Page 1 of 2 8/25/2023

Burnsville WWTP
Outfall 001
NCO020290
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
Qw = 0.8 MGD
No value > Allowable Cw
Monitoring required
Acute (FW): 4,654.1
Nickel
NC
37.7585 FW(7QlOs) 340.8814
µg/L
3 1
15.0
Chronic (FW): 616.3
No RP, Predicted Max < 50% of Allowable Cw - No
Note: n < 9
C.V. (default)
No value > Allowable Cw
Monitoring required
Nickel
NC
25.0000 WS(7QlOs)
µg/L
Limited data set
Chronic (WS): 408.1
No value > Allowable Cw
Acute: 764.6
Selenium
NC
5 FW(7Q10s) 56
ug/L
3 0
15.0
Note: n < 9
C.V. (default)
Chronic: 81.6
No RP, Predicted Max < 50% of Allowable Cw - No
Limited data set
NO DETECTS
Max MDL = 10
Monitoring required
Acute: 4.187
Silver
NC
0.06 FW(7Q10s) 0.3067
ug/L
20 2
9.360
Chronic:----- 0.979--
----------------------------
10 values > Allowable Cw
RP shown - apply Monthly Monitoring with Limit
Acute: 1,745.4
No RP, Predicted Max >_ 50% of Allowable Cw -
Zinc
NC
####### FW(7Q10s) 127.8358
ug/L
3 3
151.5
apply Quarterly Monitoring
Note: n < 9
C.V. (default)
-------------------------------------------------
Chronic: 2,098.0
Limited data set
No value > Allowable Cw
Acute: 45.00000
Oil & Grease
NC
30 HH(7Q10s) 45
mg/L
58 3
15.00000
Chronic: 30.000
No RP , single value reported at 50% Allowable Cw in
No value > Allowable Cw
2019 - no limit or monitoring
20290 RPA, rpa
Page 2 of 2 8/25/2023

Permit No. NCO020290
NPDES Implementation of Instream Dissolved Metals Standards - Freshwater Standards
The NC 2007-2015 Water Quality Standard (WQS) Triennial Review was approved by the NC
Environmental Management Commission (EMC) on November 13, 2014. The US EPA subsequently
approved the WQS revisions on April 6, 2016, with some exceptions. Therefore, metal limits in draft
permits out to public notice after April 6, 2016 must be calculated to protect the new standards - as
approved.
Table 1. NC Dissolved Metals Water Q ality Standards/A uatic Life Protection
Parameter
Acute FW, µg/l
(Dissolved)
Chronic FW, µg/l
(Dissolved)
Acute SW, µg/1
(Dissolved)
Chronic SW, µg/1
(Dissolved)
Arsenic
340
150
69
36
Beryllium
65
6.5
---
---
Cadmium
Calculation
Calculation
40
8.8
Chromium III
Calculation
Calculation
---
---
Chromium VI
16
11
1100
50
Copper
Calculation
Calculation
4.8
3.1
Lead
Calculation
Calculation
210
8.1
Nickel
Calculation
Calculation
74
8.2
Silver
Calculation
0.06
1.9
0.1
Zinc
Calculation
Calculation
90
81
Table 1 Notes:
1. FW= Freshwater, SW= Saltwater
2. Calculation = Hardness dependent standard
3. Only the aquatic life standards listed above are expressed in dissolved form. Aquatic life
standards for Mercury and selenium are still expressed as Total Recoverable Metals due to
bioaccumulative concerns (as are all human health standards for all metals). It is still necessary
to evaluate total recoverable aquatic life and human health standards listed in 15A NCAC
2B.0200 (e.g., arsenic at 10 µg/1 for human health protection; cyanide at 5 µg/L and fluoride at
1.8 mg/L for aquatic life protection).
Table 2. Dissolved Freshwater Standards for Hardness -Dependent Metals
The Water Effects Ratio (WER) is equal to one unless determined otherwise under 15A
NCAC 02B .0211 Subparagraph (11)(d)
Metal
NC Dissolved Standard, µg/I
Cadmium, Acute
WER* {1. 136672-[ln hardness](0.041838)} e^10.9151 [ln hardness]-3.1485}
Cadmium, Acute Trout waters
WER* {1. 136672-[ln hardness](0.041838)} e^{0.9151[In hardness]-3.62361
Cadmium, Chronic
WER*{1.101672-[ln hardness](0.041838)} • e^{0.7998[ln hardness] -4.445 11
Chromium III, Acute
WER*0.316 e^{0.8190[ln hardness]+3.7256}
Chromium III, Chronic
WER*0.860 e^{0.8190[ln hardness]+0.6848}
Copper, Acute
WER*0.960 e^{0.9422[ln hardness]-1.700}
Copper, Chronic
WER*0.960 e^{0.8545[ln hardness]-1.702}
Lead, Acute
WER*{1.46203-[ln hardness](0.145712)} • e^{1.273[ln hardness]-1.460}
Lead, Chronic
WER*{1.46203-[ln hardness](0.145712)} • e^{1.273[ln hardness]-4.705)
Nickel, Acute
WER*0.998 e^{0.8460[ln hardness]+2.255}
Nickel, Chronic
WER*0.997 e^{0.8460[ln hardness]+0.0584}
Page 1 of 4

Permit No. NCO020290
Silver, Acute
WER*0.85 • e"O.72[ln hardness]-6.59}
Silver, Chronic
Not applicable
Zinc, Acute
WER*0.978 e^{0.8473[ln hardness]+0.884}
Zinc, Chronic
WER*0.986 e^{0.8473[ln hardness]+0.884}
General Information on the Reasonable Potential Analysis (RPA)
The RPA process itself did not change as the result of the new metals standards. However, application of
the dissolved and hardness -dependent standards requires additional consideration in order to establish the
numeric standard for each metal of concern of each individual discharge.
The hardness -based standards require some knowledge of the effluent and instream (upstream) hardness
and so must be calculated case -by -case for each discharge.
Metals limits must be expressed as `total recoverable' metals in accordance with 40 CFR 122.45(c). The
discharge -specific standards must be converted to the equivalent total values for use in the RPA
calculations. We will generally rely on default translator values developed for each metal (more on that
below), but it is also possible to consider case -specific translators developed in accordance with
established methodology.
RPA Permitting Guidance/WOBELs for Hardness -Dependent Metals - Freshwater
The RPA is designed to predict the maximum likely effluent concentrations for each metal of concern,
based on recent effluent data, and calculate the allowable effluent concentrations, based on applicable
standards and the critical low -flow values for the receiving stream.
If the maximum predicted value is greater than the maximum allowed value (chronic or acute), the
discharge has reasonable potential to exceed the standard, which warrants a permit limit in most cases. If
monitoring for a particular pollutant indicates that the pollutant is not present (i.e. consistently below
detection level), then the Division may remove the monitoring requirement in the reissued permit.
To perform a RPA on the Freshwater hardness -dependent metals the Permit Writer compiles the
following information:
• Critical low flow of the receiving stream, 7Q10 (the spreadsheet automatically calculates
the 1 Q 10 using the formula 1 Q 10 = 0.843 (s7Q 10, cfs) 0.993
• Effluent hardness and upstream hardness, site -specific data is preferred
• Permitted flow
• Receiving stream classification
2. In order to establish the numeric standard for each hardness -dependent metal of concern and for
each individual discharge, the Permit Writer must first determine what effluent and instream
(upstream) hardness values to use in the equations.
The permit writer reviews DMR's, Effluent Pollutant Scans, and Toxicity Test results for any
hardness data and contacts the Permittee to see if any additional data is available for instream
hardness values, upstream of the discharge.
If no hardness data is available, the permit writer may choose to do an initial evaluation using a
default hardness of 25 mg/L (CaCO3 or (Ca + Mg)). Minimum and maximum limits on the
hardness value used for water quality calculations are 25 mg/L and 400 mg/L, respectively.
If the use of a default hardness value results in a hardness -dependent metal showing reasonable
potential, the permit writer contacts the Permittee and requests 5 site -specific effluent and
upstream hardness samples over a period of one week. The RPA is rerun using the new data.
Page 2 of 4

Permit No. NCO020290
The overall hardness value used in the water quality calculations is calculated as follows:
Combined Hardness (chronic)
_ (Permitted Flow, cfs *Avg. Effluent Hardness, mg/L)+s7Q10, cfs *Avg. Upstream Hardness, mg/L)
(Permitted Flow, cfs + s7Q 10, cfs)
The Combined Hardness for acute is the same but the calculation uses the IQ 10 flow.
3. The permit writer converts the numeric standard for each metal of concern to a total recoverable
metal, using the EPA Default Partition Coefficients (DPCs) or site -specific translators, if any
have been developed using federally approved methodology.
EPA default partition coefficients or the "Fraction Dissolved" converts the value for
dissolved metal at laboratory conditions to total recoverable metal at in -stream
ambient conditions. This factor is calculated using the linear partition coefficients
found in The Metals Translator: Guidance for Calculating a Total Recoverable
Permit Limit from a Dissolved Criterion (EPA 823-B-96-007, June 1996) and the
equation:
Cdiss = 1
Ctotal I + { [Kp.] [ss('+a)] [10 6] }
Where:
ss = in -stream suspended solids concentration [mg/1], minimum of 10 mg/L used,
and
Kpo and a = constants that express the equilibrium relationship between dissolved
and adsorbed forms of metals. A list of constants used for each hardness -dependent
metal can also be found in the RPA program under a sheet labeled DPCs.
4. The numeric standard for each metal of concern is divided by the default partition coefficient (or
site -specific translator) to obtain a Total Recoverable Metal at ambient conditions.
In some cases, where an EPA default partition coefficient translator does not exist (ie. silver), the
dissolved numeric standard for each metal of concern is divided by the EPA conversion factor to
obtain a Total Recoverable Metal at ambient conditions. This method presumes that the metal is
dissolved to the same extent as it was during EPA's criteria development for metals. For more
information on conversion factors see the June, 1996 EPA Translator Guidance Document.
5. The RPA spreadsheet uses a mass balance equation to determine the total allowable concentration
(permit limits) for each pollutant using the following equation:
Ca = (s7Q 10 + Qw) (Cwgs) — (s7Q10) (Cb)
Qw
Where: Ca = allowable effluent concentration (µg/L or mg/L)
Cwqs = NC Water Quality Standard or federal criteria (µg/L or mg/L)
Cb = background concentration: assume zero for all toxicants except NH3* (µg/L or mg/L)
Qw = permitted effluent flow (cfs, match s7Q 10)
s7Q 10 = summer low flow used to protect aquatic life from chronic toxicity and human
health through the consumption of water, fish, and shellfish from noncarcinogens (cfs)
* Discussions are on -going with EPA on how best to address background concentrations
Flows other than s7Q 10 may be incorporated as applicable:
IQ 10 = used in the equation to protect aquatic life from acute toxicity
Page 3 of 4

Permit No. NC0020290
QA = used in the equation to protect human health through the consumption of water,
fish, and shellfish from carcinogens
30Q2 = used in the equation to protect aesthetic quality
6. The permit writer enters the most recent 2-3 years of effluent data for each pollutant of concern.
Data entered must have been taken within four and one-half years prior to the date of the permit
application (40 CFR 122.21). The RPA spreadsheet estimates the 95th percentile upper
concentration of each pollutant. The Predicted Max concentrations are compared to the Total
allowable concentrations to determine if a permit limit is necessary. If the predicted max exceeds
the acute or chronic Total allowable concentrations, the discharge is considered to show
reasonable potential to violate the water quality standard, and a permit limit (Total allowable
concentration) is included in the permit in accordance with the U.S. EPA Technical Support
Document for Water Quality -Based Toxics Control published in 1991.
7. When appropriate, permit writers develop facility specific compliance schedules in accordance
with the EPA Headquarters Memo dated May 10, 2007 from James Hanlon to Alexis Strauss on
40 CFR 122.47 Compliance Schedule Requirements.
The Total Chromium NC WQS was removed and replaced with trivalent chromium and
hexavalent chromium Water Quality Standards. As a cost savings measure, total chromium data
results may be used as a conservative surrogate in cases where there are no analytical results
based on chromium III or VI. In these cases, the projected maximum concentration (95th %) for
total chromium will be compared against water quality standards for chromium III and
chromium VI.
9. Effluent hardness sampling and instream hardness sampling, upstream of the discharge, are
inserted into all permits with facilities monitoring for hardness -dependent metals to ensure the
accuracy of the permit limits and to build a more robust hardness dataset.
10. Hardness and flow values used in the Reasonable Potential Analysis for this permit included:
Parameter
Value
Comments (Data Source)
Average Effluent Hardness (mg/L)
[Total as, CaCO3 or (Ca+Mg)]
31.84
Average from DMR review for data
from March 2019 — March 2023
Average Upstream Hardness (mg/L)
[Total as, CaCO3 or (Ca+Mg)]
25
Default used; average from review
period below 25 mg/L.
7Q 10 summer (cfs)
19
Historical file; previous fact sheet
IQIO (cfs)
15.69
Calculated in RPA
Permitted Flow (MGD)
0.8
NPDES Files
Date: 6/12/2023
Permit Writer: Nick Coco
Page 4 of 4

NCO020290 Burnsville WWTP
BOD monthly removal rate
Month
January-19
February-19
March-19
April-19
May-19
June-19
July-19
August-19
September-19
October-19
November-19
December-19
January-20
February-20
March-20
April-20
May-20
June-20
July-20
August-20
September-20
October-20
November-20
December-20
January-21
February-21
March-21
April-21
May-21
June-21
RR (%)
94.58
86.60
92.98
95.10
96.28
94.57
87.01
88.84
91.50
89.37
86.56
83.17
76.09
66.31
65.66
69.64
68.61
74.80
56.31
76.45
75.32
71.63
82.15
84.73
92.64
95.35
92.60
93.00
94.46
92.42
Month
July-21
August-21
September-21
October-21
November-21
December-21
January-22
February-22
March-22
April-22
May-22
June-22
July-22
August-22
September-22
October-22
November-22
December-22
January-23
February-23
March-23
April-23
May-23
June-23
July-23
August-23
September-23
October-23
November-23
December-23
Overall BOD removal rate
RR (%)
91.25
88.25
95.07
92.69
89.47
92.86
92.33
84.46
83.70
83.85
85.96
87.45
93.18
97.20
93.76
96.69
95.49
96.85
93.52
94.80
95.58
87.04
6/2/2023
TSS monthly removal rate
Month
January-19
February-19
March-19
April-19
May-19
June-19
July-19
August-19
September-19
October-19
November-19
December-19
January-20
February-20
March-20
Apri I-20
May-20
June-20
July-20
August-20
September-20
October-20
November-20
December-20
January-21
February-21
March-21
April-21
May-21
June-21
RR (%)
94.95
95.65
95.27
95.14
96.92
96.42
94.46
88.80
92.44
91.64
88.85
88.74
91.64
81.03
82.51
78.91
84.82
94.57
90.50
84.69
83.72
95.87
94.00
96.25
96.79
95.23
92.74
95.78
95.88
96.63
Month
July-21
August-21
September-21
October-21
November-21
December-21
January-22
February-22
March-22
April-22
May-22
June-22
July-22
August-22
September-22
October-22
November-22
December-22
January-23
February-23
March-23
April-23
May-23
June-23
July-23
August-23
September-23
October-23
November-23
December-23
Overall TSS removal rate
RR (%)
96.72
96.73
94.56
96.21
98.16
95.61
95.77
94.36
95.95
95.52
95.33
96.77
96.90
97.55
97.37
96.89
97.12
96.94
97.85
97.82
97.75
93.70

Burnsville WWTP/NC0020290
Mercury Data Statistics (Method 1631E)
2023
# of Samples
3
Annual Average, ng/L
1.9
Maximum Value, ng/L
2.41
TBEL, ng/L
47
WQBEL, ng/L
195.9

Burnsville WWTP/NC0020290
Mercury Data Statistics (Method 1631E)
2023
# of Samples
3
Annual Average, ng/L
1.9
Maximum Value, ng/L
2.41
TBEL, ng/L
47
WQBEL, ng/L
195.9

MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO020290 MRS Betweei 6 - 2018 and 6 - 2023 Region: %
Facility Name: % Param Nam(% County: %
Major Minor: %
Report Date: 06/01/22 Page 1 of 4
Violation Category:Limit Violation Program Category:
Subbasin: % Violation Action: %
PERMIT: NCO020290
FACILITY: Town of Burnsville - Burnsville WWTP
COUNTY: Yancey
REGION: Asheville
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
03 - 2020
001
Effluent
BOD, 5-Day (20 Deg. C) -
03/21 /20
3 X week
mg/I
45
47.13
4.7
Weekly Average
Proceed to NOV
Concentration
Exceeded
03 - 2020
001
Effluent
BOD, 5-Day (20 Deg. C) -
03/31 /20
3 X week
mg/I
30
35.86
19.5
Monthly Average
Proceed to NOV
Concentration
Exceeded
10 - 2020
001
Effluent
BOD, 5-Day (20 Deg. C) -
10/31 /20
3 X week
mg/I
30
39.37
31.2
Monthly Average
Proceed to
Concentration
Exceeded
Enforcement Case
04-2020
001
Effluent
Chlorine, Total Residual
04/20/20
3 X week
ug/I
28
40
42.9
Daily Maximum
No Action, BPJ
Exceeded
04-2020
001
Effluent
Chlorine, Total Residual
04/27/20
3 X week
ug/I
28
46
64.3
Daily Maximum
No Action, BPJ
Exceeded
04-2020
001
Effluent
Chlorine, Total Residual
04/28/20
3 X week
ug/I
28
35
25
Daily Maximum
No Action, BPJ
Exceeded
05-2020
001
Effluent
Chlorine, Total Residual
05/04/20
3 X week
ug/I
28
33
17.9
Daily Maximum
No Action, BPJ
Exceeded
05-2020
001
Effluent
Chlorine, Total Residual
05/11/20
3 X week
ug/I
28
38
35.7
Daily Maximum
No Action, BPJ
Exceeded
05-2020
001
Effluent
Chlorine, Total Residual
05/18/20
3 X week
ug/I
28
48
71.4
Daily Maximum
No Action, BPJ
Exceeded
05-2020
001
Effluent
Chlorine, Total Residual
05/19/20
3 X week
ug/I
28
39
39.3
Daily Maximum
No Action, BPJ
Exceeded
05-2020
001
Effluent
Chlorine, Total Residual
05/27/20
3 X week
ug/I
28
47
67.9
Daily Maximum
No Action, BPJ
Exceeded
05-2020
001
Effluent
Chlorine, Total Residual
05/28/20
3 X week
ug/I
28
41
46.4
Daily Maximum
No Action, BPJ
Exceeded
06-2020
001
Effluent
Chlorine, Total Residual
06/01/20
3 X week
ug/I
28
38
35.7
Daily Maximum
No Action, BPJ
Exceeded
06-2020
001
Effluent
Chlorine, Total Residual
06/10/20
3 X week
ug/I
28
40
42.9
Daily Maximum
No Action, BPJ
Exceeded
06-2020
001
Effluent
Chlorine, Total Residual
06/15/20
3 X week
ug/I
28
44
57.1
Daily Maximum
No Action, BPJ
Exceeded
06-2020
001
Effluent
Chlorine, Total Residual
06/16/20
3 X week
ug/I
28
47
67.9
Daily Maximum
No Action, BPJ
Exceeded

MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO020290 MRS Betweel 6 - 2018 and 6 - 2023 Region: %
Facility Name: % Param Nam(% County: %
Major Minor: %
Report Date: 06/01/2� Page 2 of 4
Violation Category:Limit Violation Program Category: %
Subbasin: % Violation Action: %
PERMIT: NCO020290
FACILITY: Town of Burnsville - Burnsville WWTP
COUNTY: Yancey
REGION: Asheville
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
06-2020
001
Effluent
Chlorine, Total Residual
06/22/20
3 X week
ug/I
28
38
35.7
Daily Maximum
No Action, BPJ
Exceeded
06-2020
001
Effluent
Chlorine, Total Residual
06/24/20
3 X week
ug/I
28
47
67.9
Daily Maximum
No Action, BPJ
Exceeded
06-2020
001
Effluent
Chlorine, Total Residual
06/29/20
3 X week
ug/I
28
47
67.9
Daily Maximum
No Action, BPJ
Exceeded
07-2020
001
Effluent
Chlorine, Total Residual
07/06/20
3 X week
ug/I
28
29
3.6
Daily Maximum
No Action, BPJ
Exceeded
07-2020
001
Effluent
Chlorine, Total Residual
07/07/20
3 X week
ug/I
28
32
14.3
Daily Maximum
No Action, BPJ
Exceeded
07-2020
001
Effluent
Chlorine, Total Residual
07/13/20
3 X week
ug/I
28
32
14.3
Daily Maximum
No Action, BPJ
Exceeded
09-2020
001
Effluent
Chlorine, Total Residual
09/21/20
3 X week
ug/I
28
36
28.6
Daily Maximum
No Action, BPJ
Exceeded
10 - 2020
001
Effluent
Chlorine, Total Residual
10/07/20
3 X week
ug/I
28
42
50
Daily Maximum
No Action, BPJ
Exceeded
10-2020
001
Effluent
Chlorine, Total Residual
10/26/20
3 X week
ug/I
28
44
57.1
Daily Maximum
No Action, BPJ
Exceeded
10-2020
001
Effluent
Chlorine, Total Residual
10/28/20
3 X week
ug/I
28
41
46.4
Daily Maximum
No Action, BPJ
Exceeded
11 -2020
001
Effluent
Chlorine, Total Residual
11/03/20
3 X week
ug/I
28
31
10.7
Daily Maximum
No Action, BPJ
Exceeded
11 -2020
001
Effluent
Chlorine, Total Residual
11/16/20
3 X week
ug/I
28
32
14.3
Daily Maximum
No Action, BPJ
Exceeded
11 -2020
001
Effluent
Chlorine, Total Residual
11/23/20
3 X week
ug/I
28
30
7.1
Daily Maximum
No Action, BPJ
Exceeded
11 -2020
001
Effluent
Chlorine, Total Residual
11/30/20
3 X week
ug/I
28
45
60.7
Daily Maximum
No Action, BPJ
Exceeded
12-2020
001
Effluent
Chlorine, Total Residual
12/02/20
3 X week
ug/I
28
41
46.4
Daily Maximum
No Action, BPJ
Exceeded
12-2020
001
Effluent
Chlorine, Total Residual
12/15/20
3 X week
ug/I
28
32
14.3
Daily Maximum
No Action, BPJ
Exceeded

MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO020290 MRS Betweel 6 - 2018 and 6 - 2023 Region: %
Facility Name: % Param Nam(% County: %
Major Minor: %
Report Date: 06/01/2� Page 3 of 4
Violation Category:Limit Violation Program Category: %
Subbasin: % Violation Action: %
PERMIT: NCO020290
FACILITY: Town of Burnsville - Burnsville WWTP
COUNTY: Yancey
REGION: Asheville
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
12-2020
001
Effluent
Chlorine, Total Residual
12/30/20
3 X week
ug/I
28
29
3.6
Daily Maximum
No Action, BPJ
Exceeded
01 -2021
001
Effluent
Chlorine, Total Residual
01/12/21
3 X week
ug/I
28
29
3.6
Daily Maximum
No Action, BPJ
Exceeded
02-2021
001
Effluent
Chlorine, Total Residual
02/01/21
3 Xweek
ug/I
28
38
35.7
Daily Maximum
No Action, BPJ
Exceeded
02-2021
001
Effluent
Chlorine, Total Residual
02/08/21
3 X week
ug/I
28
45
60.7
Daily Maximum
No Action, BPJ
Exceeded
02-2021
001
Effluent
Chlorine, Total Residual
02/15/21
3 X week
ug/I
28
33
17.9
Daily Maximum
No Action, BPJ
Exceeded
02-2021
001
Effluent
Chlorine, Total Residual
02/16/21
3 X week
ug/I
28
29
3.6
Daily Maximum
No Action, BPJ
Exceeded
02-2021
001
Effluent
Chlorine, Total Residual
02/23/21
3 X week
ug/I
28
31
10.7
Daily Maximum
No Action, BPJ
Exceeded
02-2021
001
Effluent
Chlorine, Total Residual
02/24/21
3 X week
ug/I
28
42
50
Daily Maximum
No Action, BPJ
Exceeded
03-2021
001
Effluent
Chlorine, Total Residual
03/03/21
3 X week
ug/I
28
33
17.9
Daily Maximum
No Action, BPJ
Exceeded
03-2021
001
Effluent
Chlorine, Total Residual
03/16/21
3 X week
ug/I
28
42
50
Daily Maximum
No Action, BPJ
Exceeded
07-2021
001
Effluent
Chlorine, Total Residual
07/19/21
3 X week
ug/I
28
45
60.7
Daily Maximum
No Action, BPJ
Exceeded
08-2021
001
Effluent
Chlorine, Total Residual
08/03/21
3 X week
ug/I
28
30
7.1
Daily Maximum
No Action, BPJ
Exceeded
08-2021
001
Effluent
Chlorine, Total Residual
08/10/21
3 X week
ug/I
28
29
3.6
Daily Maximum
No Action, BPJ
Exceeded
08-2021
001
Effluent
Chlorine, Total Residual
08/16/21
3 X week
ug/I
28
39
39.3
Daily Maximum
No Action, BPJ
Exceeded
08-2021
001
Effluent
Chlorine, Total Residual
08/30/21
3 X week
ug/I
28
46
64.3
Daily Maximum
No Action, BPJ
Exceeded
09-2021
001
Effluent
Chlorine, Total Residual
09/01/21
3 X week
ug/I
28
29
3.6
Daily Maximum
No Action, BPJ
Exceeded

MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO020290 MRS Betweel 6 - 2018 and 6 - 2023 Region: %
Facility Name: % Param Nam(% County: %
Major Minor: %
Report Date: 06/01/2� Page 4 of 4
Violation Category:Limit Violation Program Category: %
Subbasin: % Violation Action: %
PERMIT: NCO020290
FACILITY: Town of Burnsville - Burnsville WWTP
COUNTY: Yancey
REGION: Asheville
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
09-2021
001
Effluent
Chlorine, Total Residual
09/07/21
3 X week
ug/I
28
29
3.6
Daily Maximum
No Action, BPJ
Exceeded
09-2021
001
Effluent
Chlorine, Total Residual
09/08/21
3 X week
ug/I
28
39
39.3
Daily Maximum
No Action, BPJ
Exceeded
09-2021
001
Effluent
Chlorine, Total Residual
09/14/21
3 X week
ug/I
28
31
10.7
Daily Maximum
No Action, BPJ
Exceeded
02 - 2020
001
Effluent
Flow, in conduit or thru
02/29/20
Continuous
mgd
0.8
0.95
18.6
Monthly Average
Proceed to NOV
treatment plant
Exceeded
03-2020
001
Effluent
Flow, in conduit or thru
03/31/20
Continuous
mgd
0.8
0.89
11.3
Monthly Average
Proceed to NOV
treatment plant
Exceeded
04 - 2020
001
Effluent
Flow, in conduit or thru
04/30/20
Continuous
mgd
0.8
0.82
1.9
Monthly Average
Proceed to NOV
treatment plant
Exceeded
05-2020
001
Effluent
Flow, in conduit or thru
05/31/20
Continuous
mgd
0.8
0.88
10.3
Monthly Average
Proceed to NOV
treatment plant
Exceeded
07-2020
001
Effluent
Flow, in conduit or thru
07/31/20
Continuous
mgd
0.8
0.98
22.9
Monthly Average
Proceed to
treatment plant
Exceeded
Enforcement Case
08-2020
001
Effluent
Flow, in conduit or thru
08/31/20
Continuous
mgd
0.8
0.95
18.4
Monthly Average
Proceed to
treatment plant
Exceeded
Enforcement Case
09 - 2020
001
Effluent
Flow, in conduit or thru
09/30/20
Continuous
mgd
0.8
0.85
6.8
Monthly Average
Proceed to NOV
treatment plant
Exceeded
03-2023
001
Effluent
pH
03/28/23
3 X week
su
6
5.64
6
Daily Minimum Not
Proceed to NOD
Reached

,e,n.v,iroehe]m
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 * 910.392.0223 Lab ■ 910.392.4424 Fax
710 Howsertown Road, Manteo, NC 27954 - 252.473,5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
in ro@envi ronmentalchemists.com
WQ Labs & Operations, Inc
Date of Report: Jul 17, 2023
Post Office
Box 1167
Customer PO #:
Banner Elk
NC 28604
Customer ID: 08110023
Attention:
Report #: 2023-14123
Project ID: Altec
Lab ID
Sample ID:
Collect DatelTime Matrix Sampled by
23-35113
Site: 627
6/27/2023 12:30 PM Water Client
Test
Method Results Date Analyzed
1,4-Dioxane
SW-846 Method 82600 <2 pg/L 07/10/2023
Lab ID
Sample ID:
Collect DatelTime Matrix Sampled by
23-35120
Site: 0705
7/512023 3:00 PM Water Client
Test
Method Results Date Analyzed
1,4-Dioxane
SW-846Method8260D <2 pg/L 07/10/2023
Lab ID
Sample ID:
Collect Daterrime Matrix Sampled by
23-35121
Site: 0706
7/6/2023 9:30 AM Water Client
Test Method Results Date Analyzed
1,4-Dioxane
Comment:
Reviewed by:
SW-846 Method 8260D
<2 pg/L 07/10/2023
Report k:: 2023-14123 Paae 1 of 1

[envirochem
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 IP 910.392,0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473,5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347,5843 Lab/Fax
[e-mail]
WQ Labs & Operations, Inc Date of Report: Aug 02, 2023
Post Office Box 1167 Customer PO #:
Banner Elk NC 28604 Customer ID: 08110023
Attention: Report #: 2023-15057
Project ID: Altec
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
23-37262 Site: 0707 7/7/2023 8:30 AM Water Client
Test Method Results Date Analyzed
1,4-Dioxane SW-846 Method 8200D <2 pg/L 07/18/23
Lab ID Sample ID: Collect DatelTime Matrix Sampled by
23-37263 Site: 0710 7/10/2023 9:00 AM Water Client
Test Method Results Date Analyzed
1,4-Dioxane SW-846 Method 6260D <2 pg/L 07/18/23
Lab ID Sample ID: Collect DatelTime Matrix Sampled by
23-37264 Site: 0711 7/11/2023 8:45 AM Water Client
Test Method Results Date Analyzed
1,4-Dioxane SW-646 Method 8260D <2 pg/L 07/18/23
Comment: ,
Reviewed by: 0, W�L
Report #: 2023-16057 page 1 of t

Environmental. Chemists, Inc.
envirochem 6602 Windmill Way, Wilmington, NC 28405 ' 910.392.0223 Lab • 910,392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
s, 255-A Wilmington Highway, Jacksonville, NC 28540 ' 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS info(r1.environmentalchcmists.com
WQ Labs & Operations, Inc
Post Office Box 1167
Banner Elk NC 28604
Attention:
Date of Report: Aug 01, 2023
Customer PO M
Customer ID: 08110023
Report #: 2023-14127
Project ID: Burnsville WWTP
Lab ID Sample ID: Collect DatelTime Matrix Sampled by
23-35126 Site: Burnsville WWTP 7/3/2023 9.20 AM Water Client
Test Method Results Date Analyzed
LL Mercury EPA 1631e 2.41 ng/L 07/29/2023
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
23-35126A Site: Field Blank 7/3/2023 9.20 AM Water Client
Test Method _ Results _ - Date Analyzed
LL Mercury
EPA 1631e
<0.500 ng/L 07/29/2023
Lab ID
Sample ID:
Collect Date/Time
Matrix Sampled by
23-35127
Site: Burnsville WWTP
7/512023 9:00 AM
Water Client
Test
Method
Results Date Analyzed
LL Mercury
EPA 1631e
1.73 ng/L 07/29/2023
Lab ID
Sample ID:
Collect DatelTime
Matrix Sampled by
23-35127A
Site: Field Blank
7/5/2023 9:00 AM
Water Client
Test
Method
Results Date Analyzed
LL Mercury
EPA 1631e
<0.500 ng/L 07/29/2023
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
23-35128 Site: Burnsville WWTP 7/6l2023 9:15 AM Water Client
Test Method Results Date Analyzed
LL Mercury EPA 1631e 1.42 ng/L 07/29/2023
Lab ID Sample 10: Collect DatelTime Matrix Sampled by
23-35128A Site: Field Blank 7/6/2023 9:15 AM Water Client
Test Method Results Date Analyzed
LL Mercury EPA 1631a <0.500 ng/L 07/29/2023
Comment:
Reviewed by, �11,
Report #:: 2023.14127 Page 1 or 1

ir
Environmental Testing Solutions, Inc, Certificate of Analysis
Project name: Water Quality
Collection date:
Date received:
14-Jun-23
15-Jun-23
PO Box 7565
Asheville, NC 29802
Phone: [phone]
Fax: [phone]
Project number: 230619.500
Sample identification: Burnsville WWTP - Grab Sample number: 239453
Parameter Method Result RL Units Date Analyst Footnotes
Analyzed
Mercury 1631E <0.500 0,500 µglL 22-r.-23 LYG1 1
Sample identification: Burnsville WWTY Field Blank - Grab
Sample number: 239454
Parameter Method Result RL Units Date Analyzed Analyst Footnotes
Mercury 1631 E 3.29 0.500 µglL 22-Dm-23 LYG1 1
Footnotes:
RL = Reporting Limit. Values are reported down to the Reporting Limit only.
1. Sample analzyed by Get Laboratories, LLC. Sample analyzed per the labels on the vials. Samples were
received in vials and not the glassware from Gel Laboratories, LLC
Date reviewed: 0 ro.28,Q 7j
Data reviewed by: Kelley E. Keenan
Signature: L t
NC Certification Number: 600
SC Certification Number: 99053
NC Drinking Water Certification Number: 37786
This report should not be reproduced, exept in its entirety, without the written consent of Environmental Testing Solutions, Inc.
The results in this report relate only to the samples submitted For analysis.

EPA Identification Number NPDES Number Facility Name Outfall Number
NC0020290 BurnsvilleWWTP 1
Method Number Estimated Concentration (If
Pollutant (Required) CAS number (ifAp licable) Reason Pollutant Believed Present in Discharge Known)
No additional pollutants to report.
Signed by: Paul Isenhour, ORC 5/9/2023

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
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 IN 1 2 u 3 I NCO020290 111 121 19/12/16 I17 18 LC] I 19 I s I 20L]
21111I I I I I I I II I I I I I I I I I I I I I I I I I I I I I I I II I I I I I r6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved -------------------
67
I 72 I n, I 71 I 74 79 I I I I I I I80
701 I 71 I LL -1 I I
LJ
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
09:OOAM 19/12/16
17/11/01
Burnsville WWTP
812 Pine Swamp Rd
Exit Time/Date
Permit Expiration Date
Burnsville NC 28714
01:OOPM 19/12/16
22/09/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Jadd Wesley Brewer/ORC/828-898-6277/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Shane Dale,PO Box 97 Burnsville NC 287140097/Public Works
Director/828-682-2420/ Yes
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement Operations & Maintenar Records/Reports
Self -Monitoring Progran 0 Facility Site Review Effluent/Receiving Wate Laboratory
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
Timothy H Heim DWR/ARO WQ/828-296-4665/
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#

NPDES yr/mo/day Inspection Type
NCO020290 I11 12I 19/12/16 117 18 i c i
(Cont.)
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Tim Heim of the Asheville Regional Office performed a routine Compliance Evaluation Inspection of
the facility on December 16, 2019. Jadd Brewer (ORC), Dylan Lundy (Burnsville Public Works), Josh
Cagle and Chad Prisk were present and assisted with the inspection. The facility appeared well
maintained and operated at the time of the inspection, with some planned repairs and maintenance
items scheduled.
The following items were noted during the inspection:
Complete repair of the clarifier drive.
Complete repair of the grit removal system.
Begin periodic testing of backup generator under load.
Plan and execute diffuser rehabilitation project in both basins.
Optimize auger timing to increase removal of plastic debris.
Consider distributing educational material on flushable wipes to utility customers.
Page#

Permit: NCO020290
Inspection Date: 12/16/2019
Owner -Facility: Burnsville WWTP
Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: BOD, DO, Temp, pH, MLSS
Permit
Yes
No
NA
NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
❑
❑
0
❑
application?
Is the facility as described in the permit?
0
❑
❑
❑
# Are there any special conditions for the permit?
❑
■
❑
❑
Is access to the plant site restricted to the general public?
0
❑
❑
❑
Is the inspector granted access to all areas for inspection?
0
❑
❑
❑
Comment:
Bar Screens Yes No NA NE
Type of bar screen
a.Manual
❑
b.Mechanical
Are the bars adequately screening debris?
0
❑
❑
❑
Is the screen free of excessive debris?
0
❑
❑
❑
Is disposal of screening in compliance?
0
❑
❑
❑
Is the unit in good condition?
E
❑
❑
❑
Comment: Grit removal system was not being operated
at the time of the inspection, ORC stated
that repairs are expected to be completed
within approximately one week.
Aeration Basins
Yes
No
NA NE
Mode of operation
Ext. Air
Type of aeration system
Diffused
Is the basin free of dead spots?
❑
0
❑
❑
Are surface aerators and mixers operational?
❑
❑
■
❑
Are the diffusers operational?
0
❑
❑
❑
Is the foam the proper color for the treatment process?
0
❑
❑
❑
Does the foam cover less than 25% of the basin's surface?
0
❑
❑
❑
Is the DO level acceptable?
❑
❑
❑
Page# 3

Permit: NCO020290
Inspection Date: 12/16/2019
Owner -Facility: Burnsville WWTP
Inspection Type: Compliance Evaluation
Aeration Basins Yes No NA NE
Is the DO level acceptable?(1.0 to 3.0 mg/1) 0 ❑ ❑ ❑
Comment: Some dead spots were observed on the surface while the blowers were operating. It is
recommended that rehabilitation of the diffusers on both aeration basins be given
priority. ORC states the DO level is maintained around 2 mg/L.
Secondary Clarifier
Is the clarifier free of black and odorous wastewater?
Is the site free of excessive buildup of solids in center well of circular clarifier?
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'/4 of the sidewall depth)
Yes
No
NA
NE
•
❑
❑
❑
•
❑
❑
❑
•
❑
❑
❑
•
❑
❑
❑
•
❑
❑
❑
•
❑
❑
❑
•
❑
❑
❑
•
❑
❑
❑
•
❑
❑
❑
•
❑
❑
❑
•
❑
❑
❑
Comment: One of the clarifier drives is only partially operating and requires manual assistance.
The ORC states that the pear drive required for repair is being shipped and repairs
should be completed by the beginning of 2020. ORC states the solids blanket is being
maintained at a minimum level (1-2') in order to reduce the force on the drive arm.
Disinfection -Liquid
Yes
No
NA
NE
Is there adequate reserve supply of disinfectant?
0
❑
❑
❑
(Sodium Hypochlorite) Is pump feed system operational?
0
❑
❑
❑
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?
0
❑
❑
❑
Is there chlorine residual prior to de -chlorination?
❑
❑
❑
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? ❑ ❑ ■ ❑
Page# 4

Permit: NC0020290
Inspection Date: 12/16/2019
Owner -Facility: Burnsville WWTP
Inspection Type: Compliance Evaluation
De -chlorination
# 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:
Standby Power
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?
Yes No NA NE
❑ ❑ ■ ❑
❑ ❑ ■ ❑
❑ ❑ ■ ❑
Yes
No
NA
NE
■
❑
❑
❑
❑
❑
❑
■
❑
❑
❑
■
❑
■
❑
❑
■
❑
❑
❑
■
❑
❑
❑
■
❑
❑
❑
Comment: It is recommended that the generator be tested under load several times a year, in
addition to the current reaular exercise schedule.
Page# 5

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
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 IN 1 2 u 3 I NCO020290 111 121 20/01/31 117 181 „ I 191 S I 201 I
211IIIII 111111III II III III1 I I IIIII IIIIIIIII II r6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved -------------------
67
I 72 I n, I 71 I 74 79 I I I I I I I80
701 I 71 I LL -1 I I
LJ
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
10:OOAM 20/01/31
17/11/01
Burnsville WWTP
812 Pine Swamp Rd
Exit Time/Date
Permit Expiration Date
Burnsville NC 28714
12:OOPM 20/01/31
22/09/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Jadd Wesley Brewer/ORC/828-898-6277/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Shane Dale,PO Box 97 Burnsville NC 287140097/Public Works
Director/828-682-2420/ Yes
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement Operations & Maintenar Records/Reports
Self -Monitoring Progran 0 Facility Site Review Effluent/Receiving Wate Laboratory
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
Timothy H Heim DWR/ARO WQ/828-296-4665/
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#

NPDES yr/mo/day Inspection Type
NCO020290 I11 12I 20/01/31 117 18 IDI
(Cont.)
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Tim Heim of the Asheville Regional Office was notified on the afternoon of 30 January, 2020 that
draw -down of the 300kGPD contact stabilization train for a planned repair of the clarifier revealed
non -repairable structural failure of the clarifier. This was verified by Burnsville's consulting engineer:
McGill Associates. The integrated nature of this train renders the entire train non -operable and
non -repairable.
Tim Heim traveled to the facility on 31 January, 2020 and met with Jadd Brewer (ORC), Dylan Lundy
(Burnsville Public Works), Chad Prisk (Maintenance) to assess the situation. Structural failure of the
clarifier was verified, and mitigation measures were discussed. These included:
Removal of the remaining wastewater from the 300kGPD contact stabilization train to the remaining
500kGPD contact stabilization train for treatment and discharge.
Pumping the 300kGPD digester to the belt press for removal of solids.
Maintaining minimal sludge blanket in the 500kGPD contact stabilization train to reduce the potential
for loss of solids during hydraulic overloading.
Increase of disinfectant (and proportional de -chlorination) in the effluent by approximately 15%.
Use of the non -operating 300kGPD train as an equalization basin during rain events.
It is anticipated that the 500kGPD contact stabilization train may be able to meet permit limits during
dry weather flows, but rain events will result in hydraulic overload.
Concerns about the structural integrity of the plant, and the need for repairs to the 300kGPD train
clarifier were cited in DWR inspections in 2015 and 2019.
Page#

Permit: NCO020290
Inspection Date: 01/31/2020
Owner -Facility: Burnsville WWTP
Inspection Type: Technical Assistance
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ❑ 0 ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: The 300kGPD contact stabilization unit clarifier is inoperable and non -repairable.
Concerns about the structural integrity of the plant, and the need for repairs to the
300kGPD train clarifier were cited in DWR inspections in 2015 and 2019.
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?
0
❑
❑
❑
Is access to the plant site restricted to the general public?
0
❑
❑
❑
Is the inspector granted access to all areas for inspection?
■
❑
❑
❑
Comment: The 300kGPD contact stabilization unit clarifier is inoperable and non -repairable. The
design of this contact stabilization unit means this renders the entire train inoperable
and non -repairable. Primary cause is buckling of the interior secondary clarifier walls.
Page# 3

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
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 IN 2 u 3 I NCO020290 111 121 23/01/24 I17 18 L�] 19 I s I 201
211IIIII 111111III II III III1 I I IIIII IIIIIIIII II r6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved -------------------
67
I 72 I n, I 73 � I 74 79 I I I I I I I80
70 I I 71 I LL -1 I I
LJ
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
09:OOAM 23/01/24
17/11/01
Burnsville WWTP
812 Pine Swamp Rd
Exit Time/Date
Permit Expiration Date
Burnsville NC 28714
01:OOPM 23/01/24
22/09/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Rex Robert Woody/ORC/828-898-5011/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Shane Dale,PO Box 97 Burnsville NC 287140097/Public Works
Director/828-682-2420/ No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Pretreatment
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
Timothy H Heim DWR/ARO WQ/828-296-4665/
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#

NPDES yr/mo/day Inspection Type
NCO020290 I11 12I 23/01/24 117 18 1,1
lul
(Cont.)
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Tim Heim of the Asheville Regional Office (ARO) performed a Compliance Inspection of the Facility on
January 24th, 2023. Paul Isenhour (Pretreatment Coordinator — Water Quality Labs), Rex Woody
(ORC), and Robin Surkin (Altec Facility Environmental Manager) were present and assisted with the
inspection. The pretreatment program and the single Industrial User (Altec) facility appeared well
operated and maintained at the time of the inspection, and in compliance with Permit NC0020290.
The following additional items were noted at the time of the inspection:
It is recommended that the Pretreatment Coordinator attend the annual NC Pretreatment Consortium
on a regular basis for training and continuing education opportunities.
https://ncpretreatment.com/
The Pretreatment Coordinator reported a continued good working relationship and communication
with the single IU: Altec.
Page#

Permit: NC0020290
Inspection Date: 01/24/2023
Owner -Facility: Burnsville WWTP
Inspection Type: Pretreatment Audit
Yes No NA NE
Page#

Whole Effluent Toxicity Testing and Self Monitoring Summary
Burnsville WWTP
NCO020290/001
County:
Yancey
Region:
ARO
Basin:
FRB07
Mar Jun Sep Dec
SOC JOC:
Ceri7dPF
Begin:
11/1/2017 chr lim: 6%
NonComp: Single
7Q10:
19.0
PF: 0.8
IWC:
6.0 Freq: Q
J
F M
A M
J
J
A
S
O
N
D
2019
-
- Pass
- -
>24(P)
Pass
-
-
>24(P) Pass
-
-
>24 Pass
2020
-
- >24 Pass
- -
Pass
-
-
Pass
-
-
Pass
2021
-
- Pass
- -
Pass
-
-
Pass
-
-
Pass
2022
-
- Pass
- -
Pass
-
-
Pass
-
-
Pass
2023
-
- Pass
- -
-
-
-
-
-
-
-
Camden County WTP
NCO086681/001
County:
Camden
Region:
WARO
Basin:
PAS50
Jan Apr Jul Oct
SOC JOC:
Mysd24PF
Begin:
3/1/2018
24hr p/f ac monit 90
NonComp:
7Q10:
Tidal
PF: 0.432 IWC:
NA Freq: Q
J
F M
A M
l
J
A
S
O
N
D
2019
Pass
- -
Pass -
-
Pass
-
-
Pass
-
-
2020
Pass
- -
Pass -
-
Pass
-
-
Pass
-
-
2021
Pass
- -
Pass -
-
Pass
-
-
Pass
-
-
2022
Pass
- -
Pass -
-
Pass
-
-
Pass
-
-
2023
Pass
- -
Pass -
-
-
-
-
-
-
-
Cape Fear Steam Electric Power Plant
NC0003433/007
County:
Chatham
Region:
RRO
Basin:
CPF07
Feb May Aug Nov
SOC JOC:
Ceri7dPF
Begin:
2/1/2019
chr lim: 90%
NonComp: Single
7Q10:
0.0
PF: NA
IWC:
100 Freq: Q
J
F M
A M
J
J
A
S
O
N
D
2019
H
H -
- H
-
-
H
-
-
H
H
2019
-
- -
- Pass
-
-
Pass
-
-
Pass
Pass
2020
-
H H
H H
H
-
H
H
H
H
H
2020
-
Pass -
H Pass
Pass
Pass
H
H
Pass
Pass
Pass
2021
H
H H
H H
H
H
H
H
H
H
H
2021
Pass
Pass Pass
H H
H
Pass
H
H
H
H
H
2022
H
H H
Pass Pass
H
Pass
H
H
H
H
H
2022
H
H H
H H
H
H
H
H
H
H
H
2023
-
Pass H
- -
-
-
-
-
-
-
-
2023
H
H H
- -
-
-
-
-
-
-
-
Cape Hatteras Water Assoc. (RO) WTP
NCO085707/001
County:
Dare
Region:
WARO
Basin:
PAS55
Jan Apr Jul Oct
SOC JOC:
MVsc17dPF
Begin:
2/1/2016
Chrmonit6.5%(mysi
+
NonComp: Single
7Q10:
Tidal
PF:
IWC:
6.5 Freq: Q
J
F M
A M
l
J
A
S
O
N
D
2019
Pass
- -
Pass -
-
Pass
-
-
-
Pass
-
2020
Pass
- -
Pass -
-
Pass
-
-
Pass
-
-
2021
Pass
- -
Pass -
-
Pass
-
-
Pass
-
-
2022
Pass
- -
Pass -
-
Pass
-
-
>6.5
-
-
2023
Pass
- -
Pass -
-
-
-
-
-
-
-
Leeend: P= Fathead minnow (Pimohales oromelas). H=No Flow (facility is active). s = Solit test between Certified Labs Page 14 of 115

A
B C D E I F I G I H I I I J K L M
N O P
Pollutants of Concern (POC) Review Form
Version:2022.09.28
1
2
1. Facility's General Information
Date of (draft) Review
6/2/2023
c. POC review due to:
e. Contact Information
3
Date of (final) Review
11/16/2023
Municipal NPDES renewal
❑J
Regional Office (RO)
Ashevilk
4
5
NPDES Permit Writer (pw)
Nick Coco
HWA-AT/LTMP Review
❑
RO PT Staff
Daniel Boss
RO NPDES Staff
Daniel Boss
6
Perm ittee-Facility Name
Burnsville WWTP
New Industries
❑
Facility PT Staff, email
Shane Dale, sdale(a-)townofburnsville.org
7
NPDES Permit Number
NCO020290
WWTP expansion
❑
f. Receiving Stream
8
NPDES Permit Effective Date
1/1/2024
Stream reclass./adjustment
❑
Outfall
Chemical Addendum Submittal
3/9/2023
Outfall relocation/adjustment
❑
Receiving Stream:
Cane River
QA, cfs:
97
9
Date
10
NPDES Permit Public Notice Date
9/6/2023
7Q10 update
❑
Stream Class
C;Tr
7Q10 (S), cfs:
19
11
eDMR data evaluated from:
1/1/2019
to
3/30/2023
Other POC review trigger, explain:
Oufall Lat.
35.54.17
Outfall Long.
82.19.59
12
a. WWTP Capacity Summary
Outfall II
13
Current Permitted Flow, mgd
Designed Flow,
0.8
Receiving Stream:
QA, cfs:
9
14
Permitted SIU Flow, mgd
0
d. IU Summary
Stream Class
7Q10, cfs:
15
b. PT Docs. Summary
# IUs
1
Oufall Lat.
Outfall Long.
16
IWS approval date
10/12/2020
# SIUs
1
Is there a PWS intake downstream of the Facility's Outfall(s)?
❑ YES 0 NO
17
L/STMP approval date:
7/19/2006
# CIUs
1
Comments:
18
HWA-AT approval date
3/21/2017
# NSCIUs
0
# IUs w/Local
1
Permits or Other
19
-Types
20
2. Industrial Users' Information.
21
#
Industrial User (IU) Name
IU Activity
IU Non Conventional Pollutans & Toxic Pollutant
IUP Effective Date
22
1
Altec Industries, Inc.
40 CFR 433
flow, BOD, TSS, temperature, pH, cadmium, chromium, COD, copper, cyanide, lead, nickel, silver, TP, zinc, TTO
23=
2
3
24
d
25
w
4
Q
5
26
Z
6
27
7
28
s
29
9
30
10
31
11
32
12
33
13
34
14
35
Comment:
40
41
3. Status of Pretreatment Program (check all that apply)
42
Status of Pretreatment Program (check all that apply)
43
❑
1) facility has no SIU's, does have Division approved Pretreatment Program that
is INACTIVE
44
❑
2) facility has no SIU's, does not have Division approved Pretreatment Program
45
❑
3) facility has SIUs and DWQ approved Pretreatment Program
46
❑
3a) Full Program with LTMP
47
p
3b) Modified Program with STMP
48
❑
4) additional conditions regarding Pretreatment attached or listed below
49
p
5) facility's sludge is being land applied or composted
6) facility's sludge is incinerated (add Beryllium and Mercury sampling according to § 503.43)
50
❑
51
❑
7) facility's sludge is taken to a landfill,
if yes which landfill:
52
❑
8) other
53
Sludge Disposal Plan:
Sludge is currently dewatered and sent to the sludge compost facility.
54
55
Sludge Permit No:
WQ0002834
56
Page 1 POC Review Form

A
B C D E F G H I J K L M N O P
57
4. LTMP/STMP and HWA Review
58
PW: Find L/STMP document, HWA spreadsheet, DMR, previous and new NPDES permit for next section.
59
o-
c
U
aPQL
Parameter of
Concern (POC)
Check List
New
NPDES
POC
Previous
NPDES
POC
Required by
EPA PT(1)
POC due to
Sludge (2)
POC due to
SIU (3)
POTW
POC (4)
%
Removal
Rate
L/STMP
Effluent Freq.
NPDES
Effluent Freq.
PQLs review
Comment
60
from
L/STMP, ug/I
Required PQL
per NPDES
permit
Recomm.
PQL, ug/I
61
0
Flow
❑
p
❑
62
0
BOD
0
0
❑
63
PI
TSS
❑
p
p
❑
64
0
NH3
❑
0
El
❑
65
❑
Arsenic
❑
❑
0
0
❑
2.0
66
❑
Barium
❑
❑
❑
❑
❑
67
❑
Beryllium(5)
❑
❑
❑
❑
❑
68
p
Cadmium(1)
❑
❑
p
0
0
❑
0.5
69
0
Chromium(l)
❑
❑
0
❑
p
❑
5.0
70
0
Copper(1)
❑
0
0
0
p
❑
2.0
71
p
Cyanide
❑
❑
❑
p
❑
72
0
Lead(1)
❑
❑
p
p
0
❑
2.0
73
❑
Mercury(5)
❑
❑
0
❑
❑
0.001
74
❑
Molybdenum
❑
❑
p
❑
❑
10.0
75
0
Nickel(l)
❑
❑
0
0
p
❑
76
0
Selenium
❑
❑
0
❑
❑
1.0
77
0
Silver
❑
❑
❑
0
❑
1.0
78
Zinc(1)
❑
0
0
0
❑
10.0
79
❑
Sludge Flow to Disposal
p
❑
❑
80
❑
% Solids to Disposal
p
❑
❑
81
❑
Oil & Grease
0
❑
82
❑
TN
❑
0
❑
❑
83
❑
TP
❑
0
❑
❑
84
❑
Chloride
❑
❑
p
❑
85
❑
Cobalt
❑
❑
0
❑
86
❑
Sodium
❑
❑
0
❑
87
❑
Bis (2-ethylhexyl)
phthalate
❑
0
❑
❑
88
❑
❑
❑
89
❑
❑
❑
❑
❑
90
❑
❑
❑
❑
❑
91
Footnotes:
(1) Always in the LTMP/STMP due to EPA -PT requirement
92
93
(2) Only in LTMP/STMP if listed in sludge permit
94
(3) Only in LTMP/STMP while SIU still discharges to POTW
95
(4) Only in LTMP/STMP when pollutant is of concern to POTW
96
(5) In LTMP/STMP, if sewage sludge is incinerated
97
Please use blue font for the info updated by pw
98
Please use red font for POC that need to be added/modified in USTMP sampling plan
99
Please font for POC that be from L/STMP POC list/sampling
use orange and strikethrough may removed plan-
100
IBlue shaded cell (D60:1-181): Parameters usually included under that POC list
101
5. Comments
102
Facility Summary/background information/NPDES-PT regulatory action:
POC to be added/modified in L/STMP:
103
ORC's comments on IU/POC:
104
POC submitted through Chemical
Addendum or Supplemental Chemical
Datasheet:
105
Additional pollutants added to L/STMP due
to POTW s concerns:
106
NPDES pw's comments on IU/POC:
107
6. Pretreatment updates in response to NPDES permit renewal
108
NPDES Permit Effective Date 1/1/2024
180 days after effective (date):
7/1/2024
Permit writer, please add list of required/recommended PT updates in NPDES permit cover letter.
Page 2 POC Review Form

NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
COUNTY OF YANCEY
IN THE MATTER OF )
NORTH CAROLINA } SPECIAL ORDER BY CONSENT
NPDES PERMIT NCO020290 and } EMC SOC S21-003
COLLECTION SYSTEM PERMIT WQCS00143 )
HELD BY THE TOWN OF BURNSVILLE )
Pursuant to provisions of North Carolina General Statute (G.S.) 143-215.2 and G.S. 143-215.67, this
Special Order by Consent is entered into by the Town of Burnsville, hereinafter referred to as the
Town, and the North Carolina Environmental Management Commission, an agency of the State of
North Carolina created by G.S. 143B-282, and hereinafter referred to as the Commission:
1.
2.
The Town and the Commission hereby stipulate the following:
(a) The Town holds North Carolina Permit WQCS00143 for operation of an existing
wastewater collection system but is unable to consistently comply with Condition 1.2.,
regarding sanitary sewer overflows (SSOs) as set forth in Collection System Permit
WQCS00143, and Bypasses and Flow limits as set forth in NPDES Permit NC0020290.
Specifically, frequent and repetitive SSOs and flow permit limit exceedances have occurred
in the Town's Collection System and at the Wastewater Treatment Plant itself. Compliance
will require preparation of plans and specifications for collection system upgrades including,
but not limited to, sewer system rehabilitation between Town Hall and the Wastewater
Treatment Plant, and pump station upgrades at the OMC Pump Station.
(b) Noncompliance with final conditions constitutes causing and contributing to pollution of the
waters of this State, and the Town is within the jurisdiction of the Commission as set forth in
G.S. Chapter 143, Article 21.
(c) The Town has secured or will secure financing for planning, design, or construction of a new
or improved wastewater collection system which, once constructed and operated, will be
sufficient to adequately collect wastewater presently being made tributary to the collection
system, such that the Town will be able to comply with final permit conditions in Collection
System Permit WQCS00143 and NPDES Permit NC0020290.
(d) Since this Special Order is by Consent (SOC), neither party will file a petition for a
contested case or for judicial review concerning its terms.
The Town, desiring to comply with the Permits identified in paragraph 1. (a) above, hereby
agrees to do the following:
(a) As settlement of all alleged violations of Collection System Permit WQCS00143 and
NPDES Permit NCO020290 currently outstanding that total $55,805, prior to entering into
this Special Order by Consent, the Town of Burnsville agrees to pay the ,sum of $5,580 and
provide documentation that the sum of the penalties reduced by ($50,225) has been spent
or currently encumbered specifically for sewer infrastructure projects. There may be other
flow violations that have not been assessed but should be coded as "No Action, SOC
Pending" in BIMS. A certified check must be made payable to the Department of
Environmental Quality (DEQ) and forwarded to the Director of the Division of Water
Resources at 1617 Mail Service Center, Raleigh, NC 27699-1617 by no later than fifteen
days following the date on which this Order is approved and executed by the Commission
and received by the Town of Burnsville.

Town of Burnsville — Burnsville Collection System and WWTP
EMC SOC S21-043
n. 2
(b) Provide the Division of Water Resources (Division) staff of the NC DEO Asheville
Regional Office (ARO), located at 2090 U.S. 70 Highway, Swannanoa, NC 28778-8211,
with a list of all additions of flow (see paragraph 6) under the Town's SOC, and update
this list each time flow is added to the collection system.
(c) Undertake or continue to perform following activities in accordance with the indicated
time schedule:
I. Operation and Maintenance recommendations:
a. Continue to respond to all SSOs and Bypasses as per conditions found in
Collections System Permit WQCS00143 and NPDES Permit NC0020290.
II. Schedules (engineering, construction & compliance):
a. Project 1 - Burnsville WWTP Improvements:
i. Rehabilitation of 0.3 MGD treatment train at the Burnsville WWTP- repair of
tank, replacement of all mechanical components, replacement of diffusers; new
steel walkways.
ii. Operate in compliance with NPDES Permit NCO020290 for a period of 6
months after completing rehabilitation.
iii. Funding Source - Rates, $520,000.00
iv. COMPLETED November 2020, Compliant Operation Milestone: April 30, 2021
b. Project 2 - Meadow Road Sewer Rehabilitation:
i. I&I Reduction: Replacement of 4,000 linear feet of existing four (4) inch and six
(6) inch sewer line with 8-inch ductile iron sewer line, 20 manholes and 40
service taps on Indian Trail and Meadow Road, Burnsville NC
ii. Demonstrate significant reduction in I&I in the collection system consistent with
this project for a period of 6 months after completion.
iii. Funding Source - CDBG-I $1.1 million
iv. COMPLETED: October 2020, Operation Milestone: March 31, 2021
c. Project 3a — OMC Pump Station Rehabilitation
i. Replacement of 1000 linear feet of 8-inch C-900 PVC Force Main to OMC
Pump Station and Rehabilitation of the OMC Pump Station to include new
pumps and generator.
ii. Operate in compliance with Collections System Permit WQCS00143 for a
period of 6 months after completing rehabilitation.
iii. Funding Source - North Carolina State Revolving Fund (SRF) Loan $1.14
million
iv. COMPLETED November 2020 (FORCE MAIN PROJECT), Compliant
Operation Milestone: April 30, 2021
d. Project 3b — OMC Pump Station Flow Reduction
i. Addition of Splitter Box at OMC Pump Station and Connection to East Yancey
Sewer Treatment Plant Collection System
ii. Funding Source — Included with SRF loan of $1.14 million
iii. Construction currently being initiated, expected completion date March, 2022
e. Project 4 — Baker's Creek Pump Station Rehabilitation

Town of Burnsville — Burnsville Collection System and WWTP
EMC SOC S21-003
p. 3
i. Rehabilitation of Baker's Creek Pump Station to include new pumps. Generator
will be replaced/upgraded if necessary.
ii. Operate in compliance with Collection System Permit WQCS00143 for a period
of 6 months after completing rehabilitation.
iii. Funding Source-ARPA funds, or loans/grants from State of North Carolina
Division of Water Infrastructure.
iv. Project to be completed by December 31, 2024.
f. Project 5: West Main ,Sewer Interceptor Improvements
i. I&I Reduction Sewer System Rehabilitation between Town Hall and the
Wastewater Treatment Plant West Main Sewer Interceptor Project
ii. Funding Source - CDBG-I project
• Projected Schedule
Funding Approval:
Submit Engineering Report:
Engineering Report Approval:
Bid and Design Package Submittal:
Bid and Design Package Approval:
Complete Construction:
April, 2021
October, 2021
March, 2022
August, 2022
December, 2022
May, 2024
g. Project 6: GIS Stormwater mapping project
i. I&I Reduction efforts aimed to locate all stormwater infrastructure. It is
expected that this effort will identify and any possible cross -connections into the
sanitary sewer system and/or identify areas of the storm sewer system that
impact the sanitary sewer system.
ii. Funding Source -Town rates & 2050)Water Quality Management Planning
Grant
iii. COMPLETED: November 2021, Operation Milestone: April 29, 2022
h. Project 7: Burnsville WWTP Rehabilitation Funding and Design
i. Overhaul and rehabilitation of the 0.5 MGD Burnsville Waste Water Treatment
Plant. Work shall include replacing air diffusers, rehabilitation of the plant
headworks, replacing the disinfection treatment from gaseous chlorine to liquid
chlorine, repair/replacement of the blower system, and construction of a new lab
building.
• Projected Schedule
Secure Funding Source — May 2024
Initiate Engineering Services Contact — July 2024

Town of Burnsville — Burnsville Collection System and WWTP
EMC SOC S21-003
p. 4
If insufficient bidders prevent the Town from lawfully awarding a contract or legal action by
prospective bidders prevents the Town from lawfully awarding contracts within the time frame
stated in paragraph 2 (c) (II) above, the Town shall notify the ARO and this Order shall be
amended to accommodate any such delays that are beyond the control of the Town.
(d) The Town shall comply with all terms and conditions of Collection System Permit
WQCS00143 and NPDES Permit NC0020290. The Permittee may also be required to
monitor for other parameters as deemed necessary by the Director in future permits or
administrative letters.
(e) No later than thirty (30) calendar days after any date identified for accomplishment of any
activity listed in 2(c) above, the Town shall submit to the ARO a written notice of
compliance or noncompliance therewith. In the case of noncompliance, the notice shall
include a statement of the reasons(s) for noncompliance, remedial actions(s) taken, and a
statement identifying the extent to which subsequent dates or times for accomplishment of
listed activities may be affected.
(f) No later than fifteen (15) calendar days after the end of the calendar quarter stipulated in
the schedule below, quarterly reports will be due to the ARO Regional Supervisor.
Quarterl Report
Report Due Date
January — March
April 15
April — June
July 15
Jul — September
October 15
October - December
January 15
3. The Town agrees that unless excused under paragraph 4, the Town will pay the Director of
DWR, by check payable to the NC DEQ, stipulated penalties according to the following
schedule for failure to meet the deadlines set out in paragraphs 2(c) and 2(f).
Violation Descri Lion
Stipulated Penalty
Failure to meet any milestone date identified in
$250/day
ara aph 2(c) above.
Failure to submit any report required by
$250/day
paragraph 2(f) above.
Any reportable spill (SSO or Bypass)
$250/event
4. The Town and the Commission agree stipulated penalties are not due if the Town satisfies the
Division of Water Resources that noncompliance was caused by extraordinary circumstances:
(a) An act of God;
(b) An act of war;
(c) An intentional act or omission of a third party, but this defense shall not be available if the
act or omission is that of an employee or agent of the defendant or if the act or omission
occurs in connection with a contractual relationship with the Town;
(d) An extraordinary event beyond the Town's control. Contractor delays or failure to obtain
funding will not be considered as events beyond the Town's control; or
(e) Any combination of the above causes.

Town of Burnsville — Burnsville Collection System and WWTP
EMC SOC S21-003
p. S
Failure within thirty (30) days of receipt of written demand to pay the penalties or challenge
them by a contested case petition pursuant to G.S. 150B-23, will be grounds for a collections
action, which the Attorney General is hereby authorized to initiate. The only issue in such an
action will be whether the thirty (30) days has elapsed.
5. In recognition of the rehabilitation work already completed, the Division is provisionally
waiving the existing sewer tap moratorium. So long as continued progress is made regarding
reduction of I&I, the tap moratorium will remain waived. The Division reserves the right to
reinstate the moratorium if conditions at the facility deteriorate_
6. The nature of the additional flows is such that the waste characteristics do not exceed those
generally associated with domestic waste or are pretreated to domestic strengths. Waste of
greater than normal domestic strength may be accepted if the parameter(s) that exceed normal
domestic strength wastewater are not those for which interim limitations have been developed
and it can be demonstrated to the satisfaction of the Director the additional waste will not
adversely affect the treatment efficiency of the treatment system for any modified parameter or
result in the violation of any other permit limitation. All new and proposed industrial waste
tributary to the system must be controlled using all needed mechanisms including but not limited
to adoption and implementation of industrial waste control and pretreatment ordinances. No
wastewater can be accepted which will add toxic pollutants in quantities not generally associated
with domestic wastewater characteristics, unless the acceptance of the additional wastewater can
be supported through appropriate analyses acceptable to the Director.
7. This SOC and any terms and conditions contained herein, hereby supersede any and all previous
Special Orders, Enforcement Compliance Schedule Letters, terms and conditions contained
therein issued in connection with Collection System Permit WQCS00143 and NPDES Permit
NC0020290. In the event of a Permit modification or renewal, requirements contained therein
shall supersede those contained in this SOC, except as modified and contained herein.
S. Any violation of the terms of this SOC, including paragraphs 2 (c) and 2 (e) above may, upon
the discretion of the Director, terminate paragraph five (5) of this Order.
9. Noncompliance with the terms of this SOC are subject to enforcement action in addition to the
above stipulations, including injunctive relief pursuant to G.S. 143-215.6(C).
10. The Town, upon signature of this SOC, will be expected to comply with all schedule dates,
terms, and conditions of this document.
11. This SOC shall expire 90 days after completion of the work listed above.

For the Town of Burnsville:
Tom- (a-Gbut Q-r
Print Name and Title of gning Official
ignature of Signing Official
Town of Burnsville — Burnsville Collection System and WWTP
EMC SOC S21-003
p. 6
�- 6 - '201
Date
For the North Carolina Environmental Management Commission:
S. Daniel Smith, P.G.
Director, Division of Water Resources
Date

DocuSign Envelope ID: 27C273BA-EO71-4C35-A61 E-CE1 2B2B79304
ROY COOPER
Governor
MICHAEL S. REGAN
Secretory
S. DANIEL SMITH
Director
NORTH CAROL.INA
Environmental Quality
February 11, 2020
CERTIFIED MAIL 7019 0700 0000 8867 5244
RETURN RECEIPT REQUESTED
Mayor Theresa Coletta
Town of Burnsville
P.O. Box 97
Burnsville, NC 28714-0097
Subject: NPDES Statutory Moratorium
NPDES Permit NCO020290
Town of Burnsville WWTP
Class WW-3
Yancey County
Dear Mayor Coletta:
The Division of Water Resources (hereby known as the Division) has determined that the
Town of Burnsville Wastewater Treatment Plant (WWTP) is unable to meet permit
requirements for proper operation and maintenance and is therefore unable to adequately
treat the volume of wastewater the facility is receiving. This determination is based upon
the findings from an on -site inspection of the WWTP conducted on January 31.
During the inspection January 31, 2020, Division personnel observed that the 300,000
gallon -per -day contact stabilization unit was completely inoperable due to structural
damage to the clarifier. It is understood from subsequent conversations with Town of
Burnsville staff and the town's consulting engineer, McGill Associates, that the unit cannot
be repaired. This unit includes essential treatment components for compliance with the
permit effluent limits and permit operations and maintenance requirements. Without this
treatment unit, the facility will be continually noncompliant with permit NC0020290.
Concerns about the need for repairs to the clarifier were noted in 2015 and 2019 DWR
inspections.
D EQ0
Nrth Carolina Department of Environmental Quality I Division of Water Resources
Asheville Regional Office 1 2090 U.S. Highway 70 1 Swannanoa, North Carolina 28778
NL'R�H CAH4JLINA
D,Rr1 a 10 Eou9ron 41 mwilry 828.296.4500

DocuSign Envelope ID: 27C273BA-E071-4C35-A61E-CE12B2B79304
2 1 P a g e
Town of Burnsville WWTP
Sewer Tap Moratorium
February 11, 2020
North Carolina General Statute §145-215.67(a) states, in part, that "no person subject to the
provision of NCGS 143-215.1, 143-215.108, or 143-214.109 shall cause or allow the
discharge of any wastes to a waste -disposal system in excess of the capacity of the disposal
system or of any wastes which the waste -disposal system cannot adequately treat." Should
these terms be violated, NCGS 143-215.67 states a moratorium can be imposed "on the
addition of waste to a treatment works" if the treatment works is not capable of adequately
treating additional waste.
Based upon the facts and determination noted above, the Town of Burnsville WWTP is
hereby placed on a moratorium prohibiting the introduction of aU additional waste to the
collection system tributary to the WWTP. Please note that the subject moratorium has
restrictions beyond those cited in the October 21, 2019 moratorium. This moratorium
prohibits:
1. the issuance of permits for new sewer lines to be connected to the WWTP;
2. any new tap-ons to the existing collection system; and,
3. the introduction of significant volumes of new wastewater flow via existing taps
(subject to the provisions of the statute).
This moratorium shall become effective 45 days from your receipt of this letter.
This moratorium will remain in effect until the Town of Burnsville WWTP is consistently
compliant with permit NC0020290 and has obtained written notification from the Division
lifting this moratorium.
As required by NCGS 143-215.67(d), the Town of Burnsville. (the permittee) shall give public
notice that a moratorium will be placed on the discharge of additional waste to the Town of
Burnsville WWTP within 15 days of the receipt of this letter. The permittee shall give public
notice of the moratorium by publication of the notice one time in a newspaper having general
circulation in Yancey County. The notice shall be as provided in the attached, sample public
notice.
The permittee shall provide an affidavit of publication and a copy of the public notice to the
Division within 30 days of publication of the public notice.
Placement of the public notice in no way absolves the permittee from past or present
violations of North Carolina General Statutes. Failure to place the public notice may subject
the permittee to additional enforcement action by the Division.

DocuSign Envelope ID: 27C273BA-E071-4C35-A61E-CE12B2B79304
3 1 P a g e
Town of Burnsville WWTP
Sewer Tap Moratorium
February 11, 2020
Correspondence pertaining to this moratorium should be sent to the Division at the address
listed at the bottom of the first page of this letter. If you have any questions about this letter,
please contact me at 828-296-4680 or via email at [e-mail].
Sincerely,
DocuSigned by:
r--��)
7E617A38285848C...
Landon Davidson, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources
Ec: North Carolina Public Utility Commission
Laserfiche
Josh Cagle, ORC - Burnsville WWTP
Dillon Lundy - Burnsville Public Works Director
Jonathan England - Yancey County Building Inspector
Amy Herron - Yancey County Health Department
G:\WR\WQ\Yancey\Wastewater\Municipal\Burnsville WWTP 20290\1an 2020 300 Plant Outage\20200211_NC00202090_SewerTapMoratorium.docx

Russell Fox
Mayor
Heather Hockaday
Town Manager/Attorney
Chad Fox
Town Clerk
Town of �Burnoillp
Town of Burnsville Public Works Department
SOC Quarterly Report For January 2023-March, 2023
Mr. Landon Davidson, P. G. Regional Office Supervisor
Surface Water Protection Section
North Carolina Division of Water Quality
2090 U.S. Highway 70
Swannanoa, NC 28778
Councilors:
Judy Buchanan
Denise Collier
Randy 011is
Bill Wheeler
21013
APH 12 2023
Water Quality Regional Operations
Asheville Regional Office
SUBJECT: Environmental Management Commission Settlement Agreement
Quarterly Status Report
Town of Burnsville Collection System
NPDES PERMIT NCO020290 and WQCS00143
Dear Mr. Davidson:
This Quarterly Report documents the Town of Burnsville Sewer Collection System compliance
activities during January, February and March 2023.
The Town has experienced no SSO's and the Pine Swamp treatment facility has operated within
permitted limits during the period of this quarterly report.
• Project 3b-OMC Pump Station Flow Reduction
The project to install an additional pump at the OMC Pump Station to divert between
50-70,000 GPD of flow to the EY Sewer District's treatment facility located East of
Burnsville has been completed. Yancey County has committed to obligating a portion of
their 2021 State Budget Infrastructure funding for the construction of force main to
connect. The Town previously secured engineering services for the design and bids for
the force main connection to the EYWSD collection system. We are awaiting design
information from the engineering firm McGill Associates. The collection system is has
just recently been completed. The County has also committed to obligate funding from
their above mentioned earmark for camera inspection, cleaning and inspection of
portions of the EY Sewer District's collection system and repairs and upgrades to the EY-
WWTP as were outlined in document sent to the County Manager dated April 20, 2022
from the ARO. The total amount allocated for these inspections and repairs will be $1.5
million. We are awaiting budget documents from the engineering firm for the county to
formally process these requests through the Division.
P.O. Box 97 • Burnsville, North Carolina 28714 • Phone [phone] FAX [phone] www.townofburnsville.org

• Project 4-Baker's Creek Pump Station Rehabilitation
The Engineering Report was submitted to the Division for review within the proper
timeline. The engineers have responded to comments and we are awaiting approval.
• Project 5-West Main Sewer Interceptor Improvements
The Design package was submitted to the Division's engineer on CDBG-1 projects in
October of 2022 and the same was returned the engineering firm in late January 2023
with comments and a request for additional information. The Town was required to
hold an additional public hearing to clarify the project area covered some areas of sewer
easement that left the public road right of way and crossed private property easements
and amend the narrative. The public hearing was held at the Town Council's regular
March 2, 2023 business meeting and the minutes will be approved and submitted with
the rest of the documentation after the April 6, 2023 meeting. Due to the approval delay
an extension was requested and approved until May 10, 2023 for Design and Bid
package approval.
• Project 7- Burnsville WWTP Improvements:
Funding for this project has now been increased to $8,850,000.00 after Yancey County
agreed to provide, from their State earmark, the additional $2.8 million in funding when
the Town's application for more grant funding from DWI was unsuccessful. The County
has contracted with WithersRavenel as the Engineering Firm. With additional funding
the new proposed scope of rehabilitation would include the addition of a new 0.5
treatment unit to be installed instead of a 0.3 unit. The plan includes rehabilitation of
the existing 0.5 treatment unit for an EQ basin and possibly pretreatment processing as
well. The Town is planning to apply to the CDBG-1 program for another $1 million in
funding for this project. The engineers and working on a new budget for that grant
request. The additional funding will allow for more updates and modernization at the
treatment facility.
Additional Projects:
• The Town in has secured grant funding through Yancey County from Dogwood Health
Trust for the GIS mapping of the sewer collection system. The sewer mapping project
was completed in late November 2022. Additionally the same funding source will be
used to complete an update of the 2016 AMP/CIP along with an infrastructure master
plan study to evaluate current conditions and capacity of all Town infrastructure and
future needs of both the Town and County. McGill and Associates is finishing updating
the Town's AMP/CIP plan and has begun work on the updating the SDF calculator. At a
joint meeting in early March McGill updated the Town and County on their progress. We
do not yet have a final completion date, but work is continuing to move forward and
Town staff approved final CIP project draft last week.
• The Engineering Report for the East Main Sewer Interceptor Improvements was
submitted to the Division and approval letters were received on March 20, 2023. The

engineers are moving forward with the design and bid package for this project within
the Division's timeline.
The Town Council is committed to improving and planning for future maintenance of the
collection and treatment systems. The Town looks forward to the forward progress of all these
projects as we move through the design phase and onto bidding and construction in
accordance with the Division's timelines.
Please accept this information on behalf of the Town of Burnsville Sewer System. if further
information is needed, please do not hesitate to contact me at 828-682-2824 or by email at
[e-mail]
Sincerely,
Town of Burnsville
V
Heather Hockaday
Town Manager
cc: Tim Heim, ARO Environmental Specialist
Shane Dale, Public Works Director, Town of Burnsville

Russell Fox
Mayor ToWn of 36urnf�bille
Heather Hockaday
Town Manager/Attorney �a of BURAr.
Chad Fox �°
Town Clerk
i
CARO���P
Town of Burnsville Public Works Department
SOC Quarterly Report for April 2023-June, 2023
July 11, 2023
Mr. Landon Davidson, P. G. Regional Office Supervisor
Surface Water Protection Section
North Carolina Division of Water Quality
2090 U.S. Highway 70
Swannanoa, NC 28778
Councilors:
Judy Buchanan
Denise Collier
Randy 011is
Bill Wheeler
JUL 17 2023 "
Water Quality Regional OperationF
Asheville Regional Office:
SUBJECT: Environmental Management Commission Settlement Agreement
Quarterly Status Report
Town of Burnsville Collection System
NPDES PERMIT NCO020290 and WQCS00143
Dear Mr. Davidson:
This Quarterly Report documents the Town of Burnsville Sewer Collection System compliance activities
during April, May, and June 2023.
The Town has experienced no SSO's and the Pine Swamp treatment facility has operated within
permitted limits during the period of this quarterly report.
Project 3b-OMC Pump Station Flow Reduction
The project to install an additional pump at the OMC Pump Station to divert between 50-70,000 GPD of
flow to the EY Sewer District's treatment facility located East of Burnsville has been completed. Yancey
County has committed to obligating a portion of their 2021 State Budget Infrastructure funding for the
construction of force main to connect. The Town previously secured engineering services for the design
and bids for the force main connection to the EYWSD collection system. We are awaiting design
information from the engineering firm McGill Associates. The collection system is has just recently been
completed. The County has also committed to obligate funding from their above mentioned earmark for
camera inspection, cleaning and inspection of portions of the EY Sewer District's collection system and
repairs and upgrades to the EY-WWTP as were outlined in document sent to the County Manager dated
April 20, 2022 from the ARO. The total amount allocated for these inspections and repairs will be $1.5
million. The Department has issued a LOIF to the County and a milestone schedule for this project (see
attached LOIF).
Project 4-Baker's Creek Pump Station Rehabilitation
The Engineering Report was approved and milestone timelines established for this project. (See
attached approval letter)
Project 5-West Main Sewer Interceptor Improvements
P.O. Box 97 • Burnsville, North Carolina 28714 9 Phone [phone] FAX [phone] www.townofburnsville.org

The design bid package for this project was approved by the Division and advertisement for bids went
out last week. (see attached advertisement)
Project 7- Burnsville WWTP Improvements:
Funding for this project has now been increased to $8,850,000.00 after Yancey County agreed to
provide, from their State earmark, the additional $2.8 million in funding when the Town's application for
more grant funding from DWI was unsuccessful. The County has contracted with WithersRavenel as the
Engineering Firm. The Division has issued a LOIF for this project with milestone timelines. (see attached
LIOF)
Additional Projects:
The Town in has secured grant funding through Yancey County from Dogwood Health Trust for the GIS
mapping of the sewer collection system. The sewer mapping project was completed in late November
2022. The water line mapping project is more than 50% complete at this time. Additionally the same
funding source will be used to complete an update of the 2016 AMP/CIP along with an infrastructure
master plan study to evaluate current conditions and capacity of all Town infrastructure and future
needs of both the Town and County. McGill and Associates is continuing to work on finishing updating
the Town's AMP/CIP plan and has begun work on the updating the SDF calculator. We are awaiting word
from the engineers on a completion date.
The Engineering Report for the East Main Sewer Interceptor Improvements was submitted to the
Division and approval letters were received on March 20, 2023. The engineers are moving forward with
the design and bid package for this project within the Division's timeline.
The Town Council is committed to improving and planning for future maintenance of the collection and
treatment systems. The Town looks forward to the forward progress of all these projects as we move
through the design phase and onto bidding and construction in accordance with the Division's timelines.
Please accept this information on behalf of the Town of Burnsville Sewer System. If further information
is needed, please do not hesitate to contact me at 828-682-2824 or by email at
[e-mail]
Sincerely,
Town of Burnsville
Heather Hockaday
Town Manager
cc: Shane Dale, Public Works Director, Town of Burnsville

ROY COOPER
Governor
ELIZABETH S. BISER
secretary
SHADI ESKAF
Director
Ms. Lynn Austin, Manager
Yancey County
110 Town Square / Room 11
Burnsville, North Carolina 28714
Dear Ms. Austin:
NORTH CAROLINA
Environmental Otallty
June 29, 2023
Subject: Letter of Intent to Fund
American Rescue Plan Act — Earmark
South Toe. River WWTP & East Yancey Wastewater
Collection System improvements Project
DWI Project No.: SRP-W-ARP-0337
The Division of Water Infrastructure (Division) has reviewed your Request for Funding and determined
your project is eligible to receive American Rescue Plan Act (ARPA) funding from the State Fiscal Recovery -
Fund (SFRF), established in Session Law (S.L.) 2021-180. Projects funded from the SFRF must meet applicable
federal law and guidance for the ARPA funds. The ARPA project grant will be one -hundred percent (100%) of
eligible project costs, up to a maximum of $2,518,950.
The first milestone is the submittal of bid-and-desip_npackage by 02-January-2024. Please note that
this intent to fund is contingent on meeting all the following milestones:
Milestone
Date
Apply for all Necessary Permits*
ASAP
Bid -and -Design Package Submittal obtain allpermits)
02-Jan-2024
Package Approval
01-Ma -2024
—Bid-and-Design
Advertise Project, Receive Bids, Submit Bid Information, and Receive Authority to Award
03-Se -2024
Execute Construction Contracts
01-Oct-2024
Receive Last Reimbursement - Statutory
31-Dec-2026
'An engineering alternatives analysis (EAA) maybe required on certain projects.
See: b=s://deg.nc.gov/about/divisions/water-resources/water-quality-perTnittin"n des-wastewater/permitting-process
Failure to meet any milestone may result in the forfeiture of funding for the proposed project.
All costs incurred prior to March 3, 2021, are not eligible for ARPA funds, and all ARPA funds mpst be
expended prior to December 31, 2026: The Division will make no reimbursement of ARPA funds after
December 31, 2026. Please also note that upon a detailed review of the project during the funding process,
it may be determined that portions of your project are not eligible for funding.
Upon detailed review of the project during the funding process, it may be determined that portions of your
project are not eligible for funding and the total funding amount may be reduced. Additionally, changes in theme
scope or priority points awarded — based on additional information that becomes apparent during project
review — may also result in changes to the total funding amount and loan terms.
K Q_�_nA North Carolina Department of Environmental Quality I Division of Water Infrastructure
512 N. Salisbury Street 11633 Mail Service Center I Raleigh, North Carolina 27699-1633
919.707.9160

Ms. Austin
Yancey County
29-Jun-23
Page 2 of 2
Environmental Review Requirements
The State Environmental Policy Act exempts projects funded by the State Reserve (such as this project)
from state -mandated environmental review. Federal requirements may still apply. [North Carolina General
Statute (N.C.G.S.) 113A-12(2)h.]
US Treasury Requirements
Projects with an expected total cost of ten million dollars ($10,000,000) or more must meet US Treasury
requirements for prevailing -wage rates, project labor agreements, and related requirements. Recipients can either
certij'y meeting the requirements or provide plans and reports as the SLFRF Compliance and Reporting
Guidance (treasurygov) specifies.
Permitting Assistance
We are offering a free, permit -assistance service to address any questions you may have about potential
permitting requirements, pitfalls, fees, and timelines. If interested, please complete our online form at
hgps:Hdeg.nc.goy/pertnits-rules/permit-assistance-and-guidance/permit-assistance-request-form and a regional
environmental coordinator will contact you. When applying for a permit, attach a copy of this letter to your
permit application. We find it is helpful to identify ARPA projects not only to get your permit to you faster but
also to assist with meeting the federal expenditure deadline of December 31, 2026.
If you have any questions concerning this matter, or require general assistance regarding your project's
Division -awarded funding, please contact your project's assigned project manager, Julia Byrd either by
telephone at 828.772.1475 or by e-mail at [e-mail].
Sincerely,
9&9- A�f�
Jon Risgaard, Chief
State Revolving Fund Section
cc: Mike Dowd, P.E., McGill Associates, P.A., Asheville NC (e-mail: [e-mail])
Cory Osborne, High Country Council of Governments, Boone NC (e-mail: [e-mail])
Antonio V. Evans, P.E. (DWI, via e-mail)
Julia Byrd (DWI, via e-mail)
Mark Hubbard, P.E. (DWI, via e-mail)
ARPA Project File (COM — LOIF)

ADVERTISEMENT FOR BIDS
Pursuant to NC G.S. 143-129, sealed Bids for the construction of the Burnsville CDBG-I Main Street Sewer
Interceptor Project will be received by the Town of Burnsville, at 6 South Main Street, Burnsville, NC
28714 until 2:00 PM local time on Thursday, August 10, 2023, at which time the Bids received will be
publicly opened and read. Bids may be submitted by mail or courier. Bids received after this time will
not be accepted.
Rehabilitate and replace approximately 11,477 linear feet of old and deteriorated 8" and 10" diameter
vitrified clay pipe (VCP) and ductile iron pipe (DIP) along the main sewer interceptor (west) that collects
wastewater from the entire town. Nearly all pipe would be repaired via trenchless rehabilitation
compared to traditional dig and replace. Trenchless rehabilitation will be done by CIPP. Replace
approximately 84 sanitary sewer service taps, perform approximately 4 point repair service taps,
rehabilitate approximately 67 manholes, and replace approximately 3 manholes.
A pre -bid conference will be held at 2:00 PM local time on Thursday, July 27, 2023 at 6 South Main
Street, Burnsville, NC 28714. Interested parties are encouraged to attend this conference to review the
plans, ask for additional information or clarification, and to visit the project site. Attendance at the pre -
bid conference is highly encouraged, but is not mandatory.
Complete digital bidding documents are available at http://withersravenel.com/bid/ or
https://www.guestcdn.com/. You may download the digital documents for $25.00 by inputting Quest
project # 8581811 on the website's search page. Please contact QuestCDN.com at [phone] or
[e-mail] for assistance in membership registration, downloading, and working with this digital
project information.
All bids must be accompanied by a certified or cashier's check or bid bond in the amount of 5% of the total
amount bid made payable to Town of Burnsville. No bid may be withdrawn for a period of 60 consecutive
calendar days after bid opening except as provided in Instructions to Bidders. Bidders must be licensed
contractors in the state(s) in which the work is to be completed.
All questions related to this bid shall be submitted in writing to [e-mail] prior to
10:00 AM local time on August 3, 2023, to receive consideration. Questions received after that time will
not be answered or accepted. A Final Addendum will be provided prior to the Bid Date.
The Town of Burnsville is an Equal Opportunity Employer. Small businesses, minority owned businesses,
women owned businesses, and businesses owned by low and moderate -income persons are encouraged
to bid. The Owner reserves the right to waive informalities and to reject any or all bids. All Bidders are
required to adhere to the rules set forth in Article 1 of Chapter 87 of the NC General Statutes.
This information is available in Spanish or any other language upon request. Please contact Heather
Hockaday at [phone] or at 2 Town Square, Burnsville, NC 28714 for accommodations for this
request.
EJCDC® C-111, Suggested Advertisement for Bids for Construction Contracts.
Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies,
and American Society of Civil Engineers. All rights reserved. Page 1

Esta informacion esta disponible en espanol o en cualquier otro idioma bajo peticion. Por favor, pongase
en contacto con Heather Hockaday al [phone] o en 2 Town Square, Burnsville, NC 28714 de
alojamiento para esta solicitud.
EQUAL HOUSING
OPPORTUNITY
END OF ADVERTISEMENT FOR BIDS
EJCDC® C-111, Suggested Advertisement for Bids for Construction Contracts.
Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies,
and American Society of Civil Engineers. All rights reserved. Page 2

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
SHADI ESKAF
Director
Ms. Heather Hockaday, Town Manager
Town of Burnsville
PO Box 97
Burnsville, NC 28714
Dear Ms. Hockaday:
NORTH CAROLINA
Environmental Quality
April 17, 2023
Subject: Engineering Report Funding Approval
Town of Burnsville
Bakers Creek Pump Station Improvements
Project No. SRP-W-ARP-0140
American Rescue Plan
The Division of Water Infrastructure (Division) has completed its review of the
engineering report for the subject project. Based upon the review, the Division has determined
that the referenced project is eligible for funding as follows:
Eligible
Rehabilitation of the Bakers Creek Pump Station to include replacement of two (2)
existing pumps (one 656 GPM and one 499 GPM) with two (2) new 600 GPM pumps;
electrical, yard piping, and associated appurtenances; and rehabilitation/replacement of
backup generator.
Non -Eligible Paving of roadways in excess of the excavated area. Spare parts, service
contracts, maintenance contracts, and extended warranties.
Based upon detailed review of the bid documents, the Division may determine that
portions of the project are not eligible for funding and the total funding amount may be reduced.
Please note that funding is contingent on meeting the schedule provided in your Letter of
Intent to Fund, or approved Funding Deadline Extension, as tabulated below:
Milestone
Date
Bid and Design Package Submittal
November 1, 2023
Bid and Design Package Approval
March 1, 2024
Advertise Project, Receive Bids, Submit Bid
Information, and Receive Authority to Award
July 1, 2024
Execute Construction Contracts
August 1, 2024
Receive last reimbursement - Statutory
December 31, 2026
NORT1, c rnt� D E Q >
oa.Anen a EAWEnn�Inbl a,ar� /�
North Carolina Department of Environmental Quality I DMsion of Water Infrastructure
512 N. Salisbury Street 1 1633 Mail Service Center I Raleigh, North Carolina 27699-1633
919.707.9160

Heather Hockaday, Town Manager
April 17, 2023
Page 2 of 2
Note that the Division will make no reimbursements of ARP funds after December
31, 2026.
If you have any questions, please contact Julia Byrd by e-mail at [e-mail]
or by telephone at 828.772.1475.
Sincerely,
Ken Pohlig, PE, Supervisor
Wastewater and Stormwater Projects Unit
cc: J. Meliski, PE, McGill Associates, Asheville
Ken Pohlig, PE. DWI (via email)
Mark Hubbard, PE, DWI (via email)
GMU Project Manager, DWI (via email)
Julia Byrd, DWI (via e-mail)
ARP File (EREID/ERAL)

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
SHADIESKAF
Director
Ms. Lynn Austin, Manager
Yancey County
110 Town Square / Room 11
Burnsville, North Carolina 28714
Dear Ms. Austin:
NORTH CAROLINA
Environmental Quality
June 29, 2023
Subject: Letter of Intent to Fund — Amended
American Rescue Plan Act — Earmark
Pine Swamp WWTP Project
DWI Project No.: SRP-W-ARP-0173
The Division of Water Infrastructure (Division) has reviewed your amended Requests for Funding (both
amended request forms provided for this specific project) and determined your project is eligible to receive
additional American Rescue Plan Act (ARPA) funding from the State Fiscal Recovery Fund (SFRF), established
in Session Law (S.L.) 2021-180 and S.L. 2022-74. Projects funded from the SFRF must meet applicable federal
law and guidance for the ARPA funds.
The amended, ARPA project grant will be one -hundred percent (100%) of eligible project costs, for
up to an amended, maximum total amount of $8 850 000 (total increase of $2 800 000), which shall be
structured as follows:
• One subtotal of $5,800,000 (increased from original LOIF), coming from the County's
S.L. 2021-180 appropriation; and
• An additional subtotal of $3,050,000 (no increase from original LOIF), coming from the
County's S.L. 2022-74 appropriation.
The first milestone is the submittal of design -and -bid package by February 29 2024 Please note that
this intent to fund is contingent on meeting all the following milestones:
Milestone
Date
Apply for all NecessaryPermits'
ASAP
Design -and -Bid Package Submittal obtain all pen -nits)
29-Feb-2024*`
Design -and -Bid Package Approval
01-Jul-2024"
Advertise Project, Receive Bids, Submit Bid Information, and Receive Authority to Award
01-Au -2024"
Execute Construction Contracts
01-Nov-2024`*
Receive Last Reimbursement - Statutory31-Dec-2026
"' —",` `" • ,s .... �. ���«— u., y­ (inn,/ may ue requirea on certain projects.
.. The project's milestone dates were amended as per the Finding Deadline Extension approval letter issued by the Division on 01-Feb-2023.
See: hgps:Adeg.nc.Qov/about/divisions/water-resources/water-natality-Dermittina/npdes wastewater/petmittingptocess
Failure to meet any milestone may result in the forfeiture of funding for the proposed project.
Noan� cnaa.i D E Q
��
om+�nauw�oomenmwwh V
North Carolina Department of Environmental Quality I Division of Water Infrastructure
512 N. Salisbury Street 1 1633 Mail Service Center I Raleigh, North Carolina 27699-1633
919.707.9160

Ms. Austin
Yancey County
29-Jun-23
Page 2 of 2
All costs incurred prior to March 3, 2021, are not eligible for ARPA funds, and all ARPA funds must be
expended prior to December 31, 2026: The Division will make no reimbursement of ARPA funds after
December 31, 2026. Please also note that upon a detailed review of the project during the funding process,
it may be determined that portions of your project are not eligible for funding.
Upon detailed review of the project during the funding process, it may be determined that portions of your
project are not eligible for funding and the total funding amount may be reduced. Additionally, changes in the
scope or priority points awarded — based on additional information that becomes apparent during project
review — may also result in changes to the total finding amount and loan terms.
Environmental Review Requirements
The State Environmental Policy Act exempts projects funded by the State Reserve (such as this project)
from state -mandated environmental review. Federal requirements may still apply. [North Carolina General Statute
(N.C.G.S.) 113A-12(2)h.]
US Treasury Requirements
Projects with an expected total cost of ten million dollars ($10,000,000) or more must meet US Treasury
requirements for prevailing wage rates, project labor agreements, and related requirements. Recipients can either
certify meeting the requirements or provide plans and reports as the SLFRF Compliance and Reporting Guidance
(treasurv.gov_) specifies.
Permitting Assistance
We are offering a free, permit -assistance service to address any questions you may have about potential
permitting requirements, pitfalls, fees, and timelines. If interested, please complete our online form at
https:Hdeq.ne.gov/permits-niles/pennit-assistance-and-g-Liidance/permit assistance request form and a regional
environmental coordinator will contact you. When applying for a permit, attach a copy of this letter to your permit
application. We find it is helpfiil to identify ARPA projects not only to get your permit to you faster but also to
assist with meeting the federal expenditure deadline of December 31, 2026.
If you have any questions concerning this matter, or require general assistance regarding your project's
Division -awarded funding, please contact your project's assigned project manager, Julia Byrd either by telephone
at 828.772.1475 or by e-mail at [e-mail].
Sincerely,
�
Jon Risgaard, Chief
State Revolving Fund Section
cc: Dana J. Bolden, P.E., WithersRavenel, Asheville NC (e-mail: [e-mail])
Cory Osborne, High Country Council of Governments, Boone NC (e-mail: [e-mail])
Antonio V. Evans, P.E. (DWI, via e-mail)
Julia Byrd (DWI, via e-mail)
Mark Hubbard, P.E. (DWI, via e-mail)
ARPA Project File (COM — LOIF)

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
SHADI ESKAF
Director
Ms. Lynn Austin, Manager
Yancey County
110 Town Square / Room 11
Burnsville, North Carolina 28714
Dear Ms. Austin:
NORTH CAROLINA
Environmental Quality
June 29, 2023
Subject: Letter of Intent to Fund — Amended
American Rescue Plan Act — Earmark
Pine Swamp WWTP Project
DWI Project No.: SRP-W-ARP-0173
The Division of Water Infrastructure (Division) has reviewed your amended Requests for Funding (both
amended request forms provided for this specific project) and determined your project is eligible to receive
additional American Rescue Plan Act (ARPA) fiinding from the State Fiscal Recovery Fund (SFRF), established
in Session Law (S.L.) 2021-180 and S.L. 2022-74. Projects funded from the SFRF must meet applicable federal
law and guidance for the ARPA funds.
The amended, ARPA project grant will be one -hundred percent (100%) of eligible project costs, for
up to an amended, maximum total amount of $8 850 000 (total increase of $2 800 000), which shall be
structured as follows:
• One subtotal of $5,800,000 (increased from original LOIF), coming from the County's
S.L. 2021-180 appropriation; and
• An additional subtotal of $3,050,000 (no increase from original LOIF), coming from the
County's S.L. 2022-74 appropriation.
The first milestone is the submittal of design -and -bid package by February 29 2024 Please note that
this intent to fund is contingent on meeting all the following milestones:
Milestone
Date
Apply for all Necessary Permits*
ASAP
Design -and -Bid Package Submittal obtain allpermits)
29-Feb-2024**
Design -and -Bid Package Approval
0 1 -Jul-2024**
Advertise Project, Receive Bids, Submit Bid Information, and Receive Authority to Award
01-Au-2024**
Execute Construction Contract(s)01-Nov-2024**
Receive Last Reimbursement - Statutor
`An en ineer , It
31-Dec- %
Is ig a "to, ves anal ysts (EAA) may be required on certain projects.
The project's milestone dates were amended as per the Funding Deadline Extension approval letter issued by the Division on 01-Feb-2023.
See: https://d g.ne.zovlabout/divisionslivater-resourceslwater- italioL-permittinglnpdes wastewater/permitting rocess
Failure to meet any milestone may result in the forfeiture of funding for the proposed project.
r ;c c 7 D E Q
North Carolina Department of Environmental Quality I Division of Water Infrastructure
512 N. Salisbury Street 1 1633 Mail Service Center I Raleigh, North Carolina 27699-1633
919.707.9160

Ms. Austin
Yancey County
29-Jun-23
Page 2 of 2
All costs incurred prior to March 3, 2021, are not eligible for ARPA funds, and all ARPA funds must be
expended prior to December 31, 2026: The Division will make no reimbursement of ARPA funds after
December 31, 2026. Please also note that upon a detailed review of the project during the funding process,
it may be determined that portions of your project are not eligible for funding.
Upon detailed review of the project during the funding process, it may be determined that portions of your
project are not eligible for funding and the total funding amount may be reduced. Additionally, changes in the
scope or priority points awarded — based on additional information that becomes apparent during project
review — may also result in changes to the total funding amount and loan terms.
Environmental Review Requirements
The State Environmental Policy Act exempts projects funded by the State Reserve (such as this project)
from state -mandated environmental review. Federal requirements may still apply. [North Carolina General Statute
(N.C.G.S.) 113A-12(2)h.]
US Treasury Requirements
Projects with an expected total cost of ten million dollars ($10,000,000) or more must meet US Treasury
requirements for prevailing wage rates, project labor agreements, and related requirements. Recipients can either
certify meeting the requirements or provide plans and reports as the SLFRF Compliance and Reporting Guidance
(treasM.gov) specifies.
Permitting Assistance
We are offering a free, permit -assistance service to address any questions you may have about potential
permitting requirements, pitfalls, fees, and timelines. If interested, please complete our online form at
https://deg.nc.aov/permits-rules/permit-assistance-and-guidance/permit-assistance request form and a regional
environmental coordinator will contact you. When applying for a permit, attach a copy of this letter to your permit
application. We find it is helpful to identify ARPA projects not only to get your permit to you faster but also to
assist with meeting the federal expenditure deadline of December 31, 2026.
If you have any questions concerning this matter, or require general assistance regarding your project's
Division -awarded funding, please contact your project's assigned project manager, Julia Byrd either by telephone
at 828.772.1475 or by e-mail at [e-mail].
Sincerely,
2 �0�
Jon Risgaard, Chief
State Revolving Fund Section
cc: Dana J. Bolden, P.E., WithersRavenel, Asheville NC (e-mail: [e-mail])
Cory Osborne, High Country Council of Governments, Boone NC (e-mail: [e-mail])
Antonio V. Evans, P.E. (DWI, via e-mail)
Julia Byrd (DWI, via e-mail)
Mark Hubbard, P.E. (DWI, via e-mail)
ARPA Project File (COM — LOIF)