NC0063321_Fact Sheet_20220901

FACT SHEET
EXPEDITED RENEWAL -NPDES PERMIT
NCO063321 — WPCS Grade WW-II
Basic Information
Permit Writer/Date Joe R. Corporon L.G. /NPDES/01 Se 2022
Permit Number/WPCS Grade NC0063321 /Grade WW-II
Flow 0.200 MGD
Owner Tuckasei ee Water and Sewer Authority TWSA
Facility Name Cashiers#3 WWTP
Facility Contact Stan B son, Operations Superintendent/828-586-5189
Type of Waste 100 % domestic
Basin Name/Sub-basin number Savannah River Basin/03-13-01
Receiving Stream Chattoo a River [Segment 3]
Stream Classification in Permit B; Trout; ORW [no changes fromprevious]
Does permit need Daily Max NH3 limits? No need-has MA&WA summer and winter
Does permit need TRC limits/language? Has limit 22 L revised the TRC footnote for renewal
Does permit have WET testing? No-per guidance document 2016
[re laced by NH3 limits and monitoring]
Does permit have Special Conditions? Yes—collection-system additions require MOD see A. (2.).
Does permit have instream monitoring? YES—Temp,Fecal,DO ORW waters
Is the stream impaired on 303 d list)? No
Any obvious compliance concerns? No
Any permit MODS since lastpermit? No
Request for Renewal Received 25Feb2022
Current expiration date August 31,2022
New expiration date August 31, 2027
Comments received on Draft Permit? Revised Ammonia limits: "Winter no greater than 2x Summer"
er 15A NCAC 213 .0404(c).
Renewal Strategy--Flow is 100%domestic to receiving stream classified B; Trout; ORW. In lieu of WET
testing,the Permittee monitors Ammonia w/limits(summer and winter). Parameters of Concern(POCs)
reported within permit limits [no violations since 16Oct2017 [BOD5]. TWSA has made no treatment system
alterations since last renewal(2017) -no permit changes recommended. DWR updated eDMR text; continued
reminder to Permittee in cover letter of ORW stream classification.
Data Review/Compliance Review--BIMS effluent data from Jan2018 through Feb2022(see XL Summaries).
BOD5, TSS, and Ammonia(NH3 as N)compliance good; monitoring effluent for Ammonia and instream
continues considering delicate stream class. Compliance issues limited to one NOV for BOD5 in Oct2017 (no
CPAs).
Flow Summary by Year
Average Flow Maximum Number of Highest Reported
Year in MGD Flow in MGD Discharges Monthly Average
Flow
2018 0.091 0.216 366 —
2019 0.083 0.184 364 —
2020 0.094 0.213 366 —
2021 0.090 0.267 365 —
2022 0.070 0.204 59 0.113 MGD

WLA for NH3 Allowable=Summer 2.3 mg/L; Winter=4.9 mg/L: (Effluent NH3 Database: Jan2018-
Jan2022)Ave= 1.21 mg/L;Max=24.6 mg/L;Min=0.5 mg/L
Ammonia Nitro en((NH3 as N) -Correction of Previous Limits: By Rule,Ammonia winter limits may not
exceed two(2)times the summer limits(15A NCAC 2B .0206). Therefore,the previous winter limits MA 4.8
mg/L and WA 14.4 mg/L are hereby lowered to 4.4 mg/L MA and 13.2 WA equal to two(2)times the summer
limits [see Table A. (1.)].
Renewal/Comments on DRAFT/Staff Report—ARO's last Staff Report is dated 29Aug2018. A previous
report submitted by a concerned citizen,Bill Floyd, described receiving stream"impacts"he felt threatened the
ORW classification(undocumented). Previous report with photos was added to the file,2017.
PROPOSED SCHEDULE OF ISSUANCE
Draft Permit to Public Notice: 28Jun2O22 (est.)
Permit Scheduled to Issue: 1 OSep2O22 (est.)
Effective Date 01 Oct2022 (est.)
NPDES DIVISION CONTACT
If you have questions about any of the above information, or on the attached permit, please email Joe
R. Corporon, P.G. [e-mail]].
NAME: DATE: 01 SEP2022
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 2.NC Dissolved Metals Water Quality Standards/Aquatic Life Protection
Parameter Acute FW, µg/l Chronic FW, µg/1 Acute SW, µg/l Chronic SW, µg/1
(Dissolved) (Dissolved) (Dissolved) (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 2 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 213.0200(e.g.,arsenic at 10 µg/l for human health protection;cyanide at 5 µg/L
and fluoride at 1.8 mg/L for aquatic life protection).
Table 3.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, /1
Cadmium,Acute WER*{1.136672-[ln hardness](0.041838){ •e^{0.9151 [ln hardness]-3.1485)
Cadmium,Acute Trout waters WER*{1.136672-[ln hardness](0.04183 8)) •e^{0.9151[ln hardness]-3.623 6)
Cadmium,Chronic WER*{1.101672-[ln hardness](0.041838){ •e^{0.7998[ln hardness]-4.445 1)
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[In 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 All.273[In hardness]-1.460}
Lead,Chronic WER*{1.46203-[ln hardness](0.145712)) • e All.273[In 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}
Silver,Acute WER*0.85 •e^{1.72[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.
1. 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 1Q10 using
the formula 1 Q 10=0.843 (s7Q 10,cfs)"'
• 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.
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)x(s7Q10, cfs *Avg. Upstream Hardness,mom)
(Permitted Flow, cfs+s7Q 10, cfs)
The Combined Hardness for acute is the same but the calculation uses the 1Q10 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.
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 amass balance equation to determine the total allowable concentration(permit limits)
for each pollutant using the following equation:
Ca=WO 10+Ow)(Cwgs)—WO 10)(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:
1 Q 10=used in the equation to protect aquatic life from acute toxicity
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.
8. 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:
Table 4
Parameter Value Comments(Data Source
Average Effluent Hardness(mg/L) N/A No metals monitored
[Total as,CaCO3 or(Ca+Mg)]
Average Upstream Hardness(mg/L) N/A
[Total as,CaCO3 or(Ca+Mg)]
7Q10 summer(cfs) N/A
1Q10(cfs) N/A
Permitted Flow(MGD) N/A 0.200

NH3/TRC WLA Calculations
Facility: Tuckaseigee Water and Sewer Authority (TWSA)
PermitNo. NCO063321
Prepared By: Joe Corporon, 01 Sep2022
Enter Design Flow (MGD): 0.2
Enter s7Q10 (cfs): 0.5
Enter w7Q10 (cfs): 0.6
Total Residual Chlorine (TRC) Ammonia (Summer)
Daily Maximum Limit (ug/1) Monthly Average Limit (mg NH3-N/1)
s7Q10 (CFS) 0.5 s7Q10 (CFS) 0.5
DESIGN FLOW (MGD) 0.2 DESIGN FLOW (MGD) 0.2
DESIGN FLOW (CFS) 0.31 DESIGN FLOW (CFS) 0.31
STREAM STD (UG/L) 17.0 STREAM STD (MG/L) 1.0
Upstream Bkgd (ug/1) 0 Upstream Bkgd (mg/1) 0.22
IWC (%) 38.27 IWC (%) 38.27
Allowable Conc. (ug/1) 44 Allowable Conc. (mg/1) 2.3
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform w7Q10 (CFS) 0.6
Monthly Average Limit: 200/100m1 DESIGN FLOW (MGD) 0.2
(If DF >331; Monitor) DESIGN FLOW (CFS) 0.31
(If DF<331; Limit) STREAM STD (MG/L) 1.8
Dilution Factor(DF) 2.61 Upstream Bkgd (mg/1) 0.22
IWC (%) 34.07
Allowable Conc. (mg/1) 4.9
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non-Muni)

TUCKASEIGEE WATER &SEWER AUTHORITY
SERVING JACKSON COUNTY
1246 West Main Street
Sylva, NC 28779
Phone:[phone] • Fax:[phone]
Feb 21,2022
NCDENR/DWR
NPDES Unit
1617 Mail Service Center
Raleigh NC 27699-1617
Subject: Permit Renewal,TWSA Plant#3 (Cashiers WWTP)
(NC0063321)
Tuckaseigee Water and Sewer Auth
Jackson County
Attn:NPDES Unit
With this letter and completed application,the Tuckaseigee Water and Sewer Authority
requests renewal of our NPDES Permit#NC 0063321,for the TWSA Plant#3 facility.
I have attached the original and two copies of the Permit Renewal.
Please contact me with any questions or comments. I can be reached directly at 828-586-
9318 or email at [e-mail] .
Sincerely,
Stan Bryson
Wastewater Plant Operations Supt. RECEIVED
Tuckaseigee Water and Sewer Auth.
F EB 2 5 .2022
NCDEQ/DWRINPOES
xc: Mr. Daniel Manring,Executive Director,
Tuckaseigee Water and Sewer Authority
This institution is an equal opportunity provider and employer.

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
TWSA Plant#3, NCO063321 Renewal Savannah
FORM —
2A NPDES FORM 2A APPLICATION OVERVIEW
NPDES
APPLICATION OVERVIEW
Form 2A has been developed in a modular format and consists of a "Basic Application Information" packet
and a "Supplemental Application Information" packet. The Basic Application Information packet is divided
into two parts. All applicants must complete Parts A and C. Applicants with a design flow greater than or
equal to 0.1 mgd must also complete Part B. Some applicants must also complete the Supplemental
Application Information packet. The following items explain which parts of Form 2A you must complete.
BASIC APPLICATION INFORMATION:
A. Basic Application Information for all Applicants. All applicants must complete questions A.1 through A.8. A treatment works
that discharges effluent to surface waters of the United States must also answer questions A.9 through A.12.
B. Additional Application Information for Applicants with a Design Flow>_0.1 mgd. All treatment works that have design flows
greater than or equal to 0.1 million gallons per day must complete questions B.1 through 13.6.
C. Certification. All applicants must complete Part C(Certification).
SUPPLEMENTAL APPLICATION INFORMATION:
D. Expanded Effluent Testing Data. A treatment works that discharges effluent to surface waters of the United States and meets
one or more of the following criteria must complete Part D(Expanded Effluent Testing Data):
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program(or has one in place), or
3. Is otherwise required by the permitting authority to provide the information.
E. Toxicity Testing Data. A treatment works that meets one or more of the following criteria must complete Part E(Toxicity Testing
Data):
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program(or has one in place), or
3. Is otherwise required by the permitting authority to submit results of toxicity testing.
F. Industrial User Discharges and RCRAICERCLA Wastes. A treatment works that accepts process wastewater from any
significant industrial users(SIUs)or receives RCRA or CERCLA wastes must complete Part F(Industrial User Discharges
and RCRA/CERCLA Wastes). SIUs are defined as:
1. All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal Regulations(CFR)403.6 and
40 CFR Chapter I, Subchapter N(see instructions); and
2. Any other industrial user that:
a. Discharges an average of 25,000 gallons per day or more of process wastewater to the treatment works(with certain
exclusions); or
b. Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic or organic
capacity of the treatment plant;or
C. Is designated as an SIU by the control authority.
G. Combined Sewer Systems. A treatment works that has a combined sewer system must complete Part G(Combined Sewer
Systems).
ALL APPLICANTS MUST COMPLETE PART C (CERTIFICATION)
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 1 of 22

TUCKASEIGEE WATER &SEWER AUTHORITY
SERVING JACKSON COUNTY
1246 West Main Street
Sylva, NC 28779
Phone:[phone] C Fax: [phone]
Feb 213 2022
NCDENR/DWR
NPDES Unit
1617 Mail Service Center
Raleigh NC 27699-1617
Subject:Permit Renewal, TWSA Plant#3 (Cashiers WWTP)
(NC0063321)
Tuckaseigee Water and Sewer Auth
Jackson County
Attn:NPDES Unit
With this letter and completed application,the Tuckaseigee Water and Sewer Authority
requests renewal of our NPDES Permit#NC 0063321, for the TWSA Plant#3 facility.
I have attached the original and two copies of the Permit Renewal.
Please contact me with any questions or comments. I can be reached directly at 828-586-
9318 or email at sbrysongtwsanc.us .
Sincerely,
Stan Bryson
Wastewater Plant Operations Supt.
Tuckaseigee Water and Sewer Auth.
xc: Mr. Daniel Manring,Executive Director,
Tuckaseigee Water and Sewer Authority
This institution is an equal opportunity provider and employer.

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
TWSA Plant#3, NCO063321 Renewal Savannah
FORM
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APPLICATION OVERVIEW
Form 2A has been developed in a modular format and consists of a "Basic Application Information" packet
and a"Supplemental Application Information" packet. The Basic Application Information packet is divided
into two parts. All applicants must complete Parts A and C. Applicants with a design flow greater than or
equal to 0.1 mgd must also complete Part B. Some applicants must also complete the Supplemental
Application Information packet. The following items explain which parts of Form 2A you must complete.
BASIC APPLICATION INFORMATION:
A. Basic Application Information for all Applicants. All applicants must complete questions A.1 through A.8. A treatment works
that discharges effluent to surface waters of the United States must also answer questions A.9 through A.12.
B. Additional Application Information for Applicants with a Design Flow z 0.1 mgd. All treatment works that have design flows
greater than or equal to 0.1 million gallons per day must complete questions B.1 through 6.6.
C. Certification. All applicants must complete Part C(Certification).
SUPPLEMENTAL APPLICATION INFORMATION:
D. Expanded Effluent Testing Data. A treatment works that discharges effluent to surface waters of the United States and meets
one or more of the following criteria must complete Part D(Expanded Effluent Testing Data):
1. Has a design flow rate greater than or equal to 1mgd,
2. Is required to have a pretreatment program(or has one in place),or
3. Is otherwise required by the permitting authority to provide the information.
E. Toxicity Testing Data. A treatment works that meets one or more of the following criteria must complete Part E(Toxicity Testing
Data):
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program(or has one in place),or
3. Is otherwise required by the permitting authority to submit results of toxicity testing.
F. Industrial User Discharges and RCRA/CERCLA Wastes. A treatment works that accepts process wastewater from any
significant industrial users(SIUs)or receives RCRA or CERCLA wastes must complete Part F(Industrial User Discharges
and RCRA/CERCLA Wastes). SIUs are defined as:
1. All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal Regulations(CFR)403.6 and
40 CFR Chapter I,Subchapter N(see instructions);and
2. Any other industrial user that:
a. Discharges an average of 25,000 gallons per day or more of process wastewater to the treatment works(with certain
exclusions);or
b. Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic or organic
capacity of the treatment plant;or
C. Is designated as an SIU by the control authority.
G. Combined Sewer Systems. A treatment works that has a combined sewer system must complete Part G(Combined Sewer
Systems).
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EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 755"&7550-22. Page 1 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
TWSA Plant#3, NCO063321 Renewal Savannah
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All treatment works must complete questions A.1 through A.8 of this Basic Application Information Packet
A.I. Facility Information.
Facility Name TWSA Plant#3
Mailing Address 1246 West Main St.
Sylva,NC 28779
Contact Person Stan Bryson
Title Wastewater Plant Operations Superintendent
Telephone Number [phone]
Facility Address 851 Cashiers Lake Rd.
(not P.O.Box) Cashiers NC 28717
A.2. Applicant Information. If the applicant is different from the above,provide the following:
Applicant Name Tuckaseigee Water&Sewer Authority
Mailing Address Same as above
Contact Person Same as above
Title
Telephone Number f )
Is the applicant the owner or operator(or both)of the treatment works?
X owner X operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
❑ facility X applicant
A.3. Existing Environmental Permits. Provide the permit number of any existing environmental permits that have been issued to the treatment works
(include state4ssued permits).
NPDES NC 0063321 PSD
UIC Other
RCRA Other
A.4. Collection System Information. Provide information on municipalities and areas served by the facility_ Provide the name and population of each
entity and,if known,provide information on the type of collection system(combined vs.separate)and its ownership(municipal,private,etc.).
Name Population Served Type of Collection System Ownership
Tuckaseigee Water&Sewer Auth. 1100 Separate Municipal
Total population served 1100
EPA Form 3510-2A(Rev.1-99). Replaces EPA fortes 755D-6&7550-22. Page 2 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
TWSA Plant#3, NCO063321 Renewal Savannah
A.5. Indian Country.
a. Is the treatment works located in Indian Country?
❑ Yes X No
b. Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from(and eventually flows
through)Indian Country?
❑Yes X No
A.6. Flow. Indicate the design flow rate of the treatment plant(i.e.,the wastewater flow rate that the plant was built to handle). Also provide the
average daily flow rate and mabmum daily flow rate for each of the last three years. Each year's data must be based on a 12-month time period
with the 121"month of`this year"occurring no more than three months prior to this application submittal.
a. Design flow rate 0.200 mgd
Two Years Ago Last Year This Year
b. Annual average daily flow rate 0.083 mqd (2019) 0.094 mqd (2020) 0.090mgd (2021)
G. Ma)dmum daily flow rate 0.184 mqd (4127) 0.213 mqd (10129) 0.267 mqd (10/07)
A.7. Collection System. Indicate the type(s)of collection system(s)used by the treatment plant. Check all that apply. Also estimate the percent
contribution(by miles)of each.
X Separate sanitary sewer 100 %,
❑ Combined storm and sanitary sewer %u
A.8. Discharges and Other Disposal Methods.
a. Does the treatment works discharge effluent to waters of the U.S.? X Yes ❑ No
If yes,list how many of each of the following types of discharge points the treatment works uses:
i. Discharges of treated effluent one
ii. Discharges of untreated or partially treated effluent -0-
li. Combined sewer overflow points -0-
iv. Constructed emergency overflows(prior to the headworks) -0-
v. Other
b. Does the treatment works discharge effluent to basins,ponds,or other surface impoundments
that do not have outlets for discharge to waters of the U.S.? ❑ Yes X No
If yes,provide the following for each surface impoundment
Location:
Annual average daily volume discharge to surface impoundment(s) mgd
Is discharge ❑ continuous or ❑ intermittent?
C. Does the treatment works land-apply treated wastewater? ❑ Yes X No
If yes,provide the following for each land application site:
Location:
Number of acres:
Annual average daily volume applied to site: mgd
Is land application ❑ continuous or ❑ intermittent?
d. Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works? X Yes
❑ No
EPA Forth 3510-2A(Rev.1-99). Replaces EPA fortes 7550-6&7550-22. Page 3 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
TWSA Plant#3, NCO063321 Renewal Savannah
If yes,describe the mean(s)by which the wastewater from the treatment works is discharged or transported to the other treatment works
(e.g.,tank truck,pipe).
Digestor sludge is hauled via tank truck to TWSA Plant#1 for treatment and disposal
If transport is by a party other than the applicant,provide:
Transporter Name Coopers Septic Service
Mailing Address 366 Fern Trail
Waynesville NC 28786
Contact Person Manual Cooper
Title Owner
Telephone Number f828)734-2403
For each treatment works that receives this discharge,provide the following:
Name TWSA Plant#1
Mailing Address 1246 W.Main St.
Sylva NC 28779
Contact Person Stan Bryson
Title Wastewater Plant Operations Supt.
Telephone Number f828)586-9318
If known,provide the NPDES permit number of the treatment works that receives this discharge NC 0039578
Provide the average daily flow rate from the treatment works into the receiving facility. .00025 mgd
e. Does the treatment works discharge or dispose of its wastewater in a manner not included
in A.8.through A.8.d above(e.g.,underground percolation,well injection): ❑ Yes X No
If yes,provide the following for each disposal method:
Description of method(including location and size of site(s)if applicable):
Annual daily volume disposed by this method:
Is disposal through this method ❑ continuous or ❑ intermittent?
EPA For 3510-2A(Rev.1-99). Replaces EPA fors 7550-6&7550-22. Page 4 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
TWSA Plant#3, NCO063321 Renewal Savannah
WASTEWATER DISCHARGES:
If you answered"Yes"to question A.8.a,complete questions A.9 through A.12 once for each outfall(including bypass points)through
which effluent is discharged. Do not Include Information on combined sewer overflows in this section. If you answered"No"to question
A.8.a,go to Part B."Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd."
A.S. Description of Outfall.
a. Outfail number 001
b. Location Cashiers 28717
(City or town,if applicable) (Zip Code)
Jackson NC
(COunt) (State)
350 6'12" 83,6'28"
(Latitude)
(Longitude)
C. Distance from shore(if applicable)
d. Depth below surface(if applicable)
e. Average daily flow rate (2021) 0.090 mgd
f. Does this outfali have either an intermittent or a periodic discharge? ❑ Yes X No (go to A.9.g.)
If yes,provide the following information:
Number f times per year discharge occurs:
Average duration of each discharge:
Average flow per discharge: mgd
Months in which discharge occurs:
g. Is outfall equipped with a diffuser? X Yes ❑ No
A.10. Description of Receiving Waters.
a. Name of receiving water Unamed tributary to the Chatooga River
b. Name of watershed(if known) Chatooga River Watershed
United States Soil Conservation Service 14-digit watershed code(if known): 03060102010010
C. Name of State Management/River Basin(if known):Savannah
United States Geological Survey 8-digit hydrologic cataloging unit code(if known): 03060101
d. Critical low flow of receiving stream(if applicable)
acute Cfs chronic cfs
e. Total hardness of receiving stream at critical low flow(if applicable): mgA of CaCO3
EPA Forth 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 5 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
TWSA Plant#3, NCO063321 Renewal Savannah
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
X Primary X Secondary
❑ Advanced X Other. Describe: Tertiary Filters
b. Indicate the following removal rates(as applicable):
Design BOD5 removal or Design CBOD5 removal Info not available %
Design SS removal
Design P removal %
Design N removal %
Other
C. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season,please describe:
Chlorination
If disinfection is by chlorination is dechlorination used for this outfall? X Yes ❑ No
Does the treatment plant have post aeration? X Yes ❑ No
A.12. Effluent Testing Information. All Applicants that discharge to waters of the US must provide effluent testing data for the following
parameters. Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent Is
discharged. Do not include information on combined sewer overflows In this section. All information reported must be based on data
collected through analysis conducted using 40 CFR Part 136 methods. In addition,this data must comply with QAIQC requirements of
40 CFR Part 136 and other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a
minimum,effluent testing data must be based on at least three samples and must be no more than four and one-half years apart
Outfall number. 001
PARAMETER MAXIMUM DAILY VALUE AVERAGE DAILY VALUE
Value Units Value Units Number of Samples
pH(Minimum) 6.0 s.u.
pH(Maximum) 6.6 s.u.
Flow Rate .267 mgd .090 m d 365
Temperature(Winter) 15.6 °C 11.3 °C 100
Temperature(Summer) 23.4 °C 19.3 °C 146
•For pH please report a minimum and a maximum daily value
MAXIMUM DAILY AVERAGE DAILY DISCHARGE
POLLUTANT DISCHARGE ANALYTICAL
Conc. Units Cone. Units Number of
METHOD MLIMDL.
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN BOD5 22.2 Mg/1 5.2 Mg/1 52 SM 5210-B 2.0 mg/1
DEMAND(Report one) CBOD5
FECAL COLIFORM 61 cfu/100 ml 5 cfun1100 52 SM 9222-D 1 dull 00 m1
Total Suspended Solids
SS 28. mg/1 7 mg/1 53 SM 2540-D 2.5 mg/l
i i
, T W
�.�y �s . a'^'�. +J, z Y em „tgg
No KM 1Mi65i
Mke
EE RAT© THEpP N OVE VIEW(PAGE"1)T�O�D ERMINE WH1CH'OTHERP`ARTS 7
F -� :'a tiz' 1C,`�-..,'.t'.Y:L"„o'�: ...4va :+r.,cis'Yi4` l:.v .j'j'.^-Ss.R ...-.>3 § <i3s" "^...t', ?v���[ ..cS�if'`_.cl-aS-J£ 1,'�CX��'✓'.'>t'... i
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 6 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
TWSA Plant#3, NCO063321 Renewal Savannah
: '"
��; -,_.�
B'ASIC�APPLICA`TtON1N�ORMAtIOT1 ow
All j
xPAR�T' �����',��tANAL�AP�PL1CATi0 ' FORMA'TLONQR APPLICANT �iVI�eA QESI.GNw 1 LQW_fG ,���-R HAN�QR
� .� t� �V' ���-��`icXi..t-thtt'� �(•x37���� k�.•.._. s l�c*�����4_" tS?� x�
All applicants with a design flow rate 2 0.1 mgd must answer questions BA through B.S. All others go to Part C(Certification).
B.I. Inflow and Infiltration. Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration.
<5000 gpd gpd
Briefly explain any steps underway or planned to minimize inflow and infiltration.
Ongoing preventive maintenance program by TWSA collection system staff.
B.2. Topographic Map. Attach to this application a topographic map of the area extending at least one mile beyond facility property boundaries. This
map must show the outline of the facility and the following information. (You may submit more than one map if one map does not show the entire
area.)
a. The area surrounding the treatment plant,including all unit processes.
b. The major pipes or other structures through which wastewater enters the treatment works and the pipes or other structures through which
treated wastewater is discharged from the treatment plant Include outfalls from bypass piping,if applicable.
c. Each well where wastewater from the treatment plant is injected underground.
d. Wells,springs,other surface water bodies,and drinking water wells that are: 1)within Y,,mile of the property boundaries of the treatment
works,and 2)listed in public record or otherwise known to the applicant.
e. Any areas where the sewage sludge produced by the treatment works is stored,treated,or disposed.
f. If the treatment works receives waste that is classified as hazardous under the Resource Conservation and Recovery Act(RCRA)by truck,rail,
or special pipe,show on the map where the hazardous waste enters the treatment works and where it is treated,stored,and/or disposed.
B.3. Process Flow Diagram or Schematic. Provide a diagram showing the processes of the treatment plant,including all bypass piping and all
backup power sources or redundancy in the system. Also provide a water balance showing all treatment units,including disinfection(e.g.,
chlorination and dechlorination)_ The water balance must show daily average flow rates at influent and discharge points and approximate daily flow
rates between treatment units. Include a brief narrative description of the diagram.
B.4. Operation[Maintenance Performed by Contractor(s).
Are any operational or maintenance aspects(related to wastewater treatment and effluent quality)of the treatment works the responsibility of a
contractor? ❑ Yes X No
If yes,list the name,address,telephone number,and status of each contractor and describe the contractor's responsibilities(attach additional
pages if necessary).
Name:
Mailing Address:
Telephone Number_ ( )
Responsibilities of Contractor.
B.S. Scheduled improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or
uncompleted plans for improvements that will affect the wastewater treatment,effluent quality,or design capacity of the treatment works. If the
treatment works has several different implementation schedules or is planning several improvements,submit separate responses to question B.5
for each. (If none,go to question B.6.)
a. List the outfall number(assigned in question A.9)for each outfall that is covered by this implementation schedule.
No scheduled improvements at this time
b. Indicate whether the planned improvements or implementation schedule are required by local,State,or Federal agencies.
❑ Yes ❑ No
EPA Forth 3510-2A(Rev.1-99). Replaces EPA fortes 7550-6&7550-22. Page 7 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
TWSA Plant#3, NCO063321 Renewal Savannah
C. If the answer to B.5.b is"Yes,"briefly describe,including new maximum daily inflow rate(f applicable).
d. Provide dates imposed by any compliance schedule or any actual dates of completion for the implementation steps listed below,as
applicable. For improvements planned independently of local,State,or Federal agencies,indicate planned or actual completion dates,as
applicable. Indicate dates as accurately as possible.
Schedule Actual Completion
Implementation Stage MM/DD/YYYY MM/DD/YYYY
-Begin Construction
-End Construction
-Begin Discharge
-Attain Operational Level
e. Have appropriate permits/clearances concerning other Federal/State requirements been obtained? ❑ Yes ❑ No
Describe briefly:
B.6. EFFLUENT TESTING DATA(GREATER THAN 0.1 MGD ONLY).
Applicants that discharge to waters of the US must provide effluent testing data for the following parameters. Provide the indicated
effluent testing required by the permitting authority for each outfall through which effluent is discharged. Do not include information
on combine sewer overflows in this section. All Information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition,this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate
QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a minimum effluent testing data must be
based on at least three pollutant scans and must be no more than four and on-half years old.
Outfaii Number. 001
MAXIMUM DAILY AVERAGE DAILY DISCHARGE
DISCHARGE ANALYTICAL
POLLUTANT METHOD ML/MDL
Conc. Units Conc. Units Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA(as N) 1.8 mg/i <0.6 mg/I 52 SM 4500 NH'-C 0.5 mg/I
CHLORINE(TOTAL <20 ugll <20 ugll 104 SM 4500 CI-G 20 ug/I
RESIDUAL,TRC)
DISSOLVED OXYGEN 11.4 mgll 9.0 mg/I 52 SM 4500-OG 1.0 mg/I
TOTAL
NITROGEN LD(TKNL) 4.1 mg/I 3.1 mg/1 4 EPA 351.2 0.50 mgll
NITRATE PLUS NITRITE
NITROGEN 18.3 mg/I 14.6 mg/I 4 EPA 353.2 0.10 mg/l
OIL and GREASE
PHOSPHORUS(Total) 2.9 mg/I 2.2 mg/I 4 EPA 365.1 .050 mg.l
TOTAL DISSOLVED SOLIDS
(TDS)
OTHER
sw
rgm SOUSE
Rq
REFERT�O THE�APICATI &W
ON9 C VE �{{/P�1'GeamE�11 TO DEiTERMINE�WHI. : 1OT�IiERiPARTS�
a Y�
R ��� U
� •Y;• _•��M:zr.•�= ;�'`t'�?.�'.`� �-? �,_�r�;j::�!; '
EPA Form 3510-2A(Rev.1-99). Replaces EPA fors 7550-6&7550-22. Page 8 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
TWSA Plant#3, NC 0063321 Renewal Savannah
�..i���ru-'�...r�F`.?.�ku�i'L:.*�'O�iC..'.k:54'�"ta3-•.r.-�slT+'f�'.�s;��vfi.�,'`^3£R��.F.Y�r ��J'�: � �-� '�,y�,'°4`���� a... s:.
APART C� CERTIFICATION�' �� .. �' ',��� ��' � F �•
All applicants must complete the Certification Section. Refer to instructions to determine who is an officer for the purposes of this
certification. All applicants must complete all applicable sections of Form 2A,as explained in the Application Overview. Indicate below which
parts of Form 2A you have completed and are submitting. By signing this certification statement,applicants confirm that they have reviewed
Form 2A and have completed all sections that apply to the facility for which this application is submitted.
Indicate which parts of Form 2A you have completed and are submitting:
X Basic Application Information packet Supplemental Application Information packet:
❑ Part D(Expanded Effluent Testing Data)
❑ Part E(Toxicity Testing: Biomonitoring Data)
❑ Part F(Industrial User Discharges and RCRA/CERCLA Wastes)
❑ Part G(Combined Sewer Systems)
�"�.+��411 a� '?�:���.�.�'�� ��"- ,,�r,-�� }�a�-yu- �.,tom ti x.�� : >'� -per y
�}'}sLaT"'tv�ii'sA+l S4T^'.+ � +[4 f
A' APPCICAN�SI4AUST�GOi4APLETEaTHEiFOLL'�OWINGGERI7FIGA71�r0� � '�`^` '=' �� '� } "}� ' t
r.7.a. 'v7,Nr5.cr-kt•...V;c�:h:sr. �;ai.tr_:r�. . �w=.w a4�.ar Er'r?; rt.^c.•s;,•. r '�aclra TA ��`._..:�r�`. ..IN MA '3:•x."MWO.�"L.-'�Z r�'S�- v�idi` �:...
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel property gather and evaluate the information submitted. Based on my inquiry of the person or persons who
manage the system or those persons directly responsible for gathering the information,the information is,to the best of my knowledge and belief,true,
accurate,and complete. I am aware that there are significant penalties for submitting false information,including the possibility of fine and imprisonment
for knowing violations.
Name and official title Stan B n WWTP Operations Su L
Signature
Telephone number [phone]
Date signed 2/21/22
Upon request of the permitting authority,you must submit any other information necessary to assure wastewater treatment practices at the treatment
works or identify appropriate permitting requirements.
SEND COMPLETED FORMS TO:
NCDENR/ DWR
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 9 of 22

TWSA Plant #3 WWTP
(NC 0063321)
Sludge Management Plan
The sludge generated in the activated sludge process at the facility will
be stored in the aerobic digestor (capacity 56,000 gals) before being
hauled via tank truck to the Tuckaseigee Water and Sewer Authority's
sludge handling facility located at: TWSA Plant #1
1871 North River Rd.
Sylva NC 28779
The sludge from the tank truck will be dumped into one of two aerobic
digestors at the TWSA Plant #1 facility. A sample of the sludge will be
obtained from the tanker on each day that a hauling event occurs. This
sampling allows calculation of the total tons of residuals hauled from
the TWSA Plant #3 WWTP. After being mixed and stabilized via air from
diffusers installed in the digestor, the sludge is dewatered via the 1.2
meter Komline-Sanderson belt press. Dewatered sludge is then
disposed of by either hauling to a designated landfill or by being treated
to a Class A Residual in the rotary batch dryer as manufactured by
Fenton Environmental Technologies. Treated residuals are then
disposed of under the authority of non-discharge permit # WQ0005763
as issued by NC Dept of Environment and Natural Resources.

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(flows,$E).
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Tuckaseigee Water and Sewer Authority Facility
Cashiers 93 WWTP Location
Receiving Stream: Chattooga River
Latitude: 35'06'11" N State GridMuad: G6SE(Cashiers,NC Map not to scale
Longitude: 83'06'25" W River Basin: Savannah
Stream Class: B;Trout-,ORW Sub-Basin: 03-13-01 DES NCO063321
Stream Segment: 3 HUC: 03060102 1V Qlackson County

PS DP
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:...............:................
...............:................:...............:...............:...............:...............�.... _ _ � .......... ATER LEYEI.'=..'3455: °c3.WATER LEVEL _ (A1fG WRIER dJIRI R 70a .::.. .W ............
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:. ...... ......:.... ...........:....DHV:EM=343g30. .....=. :....... 34i0..
INV:IN' 3937:00
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...... ........... ........... _ .... ........... ........... ..... ........... ........... ....5 5...
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:.NEYV'�ff...... .. ........r3J(CK 'Eb... ...... ..... ....
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ACT DESIGN i
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...............................:...............:...............................:... .......... ...... ...........
. . . . . ............:............. ........ ........... ........... ...........
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. .-� 200.000 GM TREATMENT TRAIN ;, _ ��

ROY COOPER
Governor
MICHAEL S. RAGAN
Secretar7:
Water Resources S. JAY ZIMMERMAN
ENVIRONMENTAL QUALITY Direcfor
August 22, 2017
Stan Bryson,WWTP Operations Superintendent
Tuckaseigee Water and Sewer Authority(TWSA)
1246 West Main Street
Sylva,N.C. 28779
Subject: Issuance of NPDES Permit NCO063321
Cashiers WWTP #3, Class WW-2
851 Cashiers Road, Cashiers
Jackson County
Dear Mr. Bryson:
The Division of Water Resources (the Division)hereby issues the attached NPDES permit
modification for the subject facility. We issue this modification pursuant to the requirements of
North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North
Carolina and the U.S. Environmental Protection Agency dated October 15, 2007, or as
subsequently amended.
Summary of Renewal Changes. We note that TWSA has made no significant changes to its
wastewater treatment system at Cashiers#3 WWTP since last renewal. The Division has
therefore only updated your permit format, your facility description, and your site map. For your
convenience, we have included in the permit details regarding the electronic Discharge
Monitoring Program(eDMR).
Division records show that you have successfully registered with the eDMR Program. Please be
reminded that until the state's eDMR application is approved compliant with EPA's Cross-
Media Electronic Reporting Regulation (CROMERR), all permittees must continue to submit
hardcopy of DMRs as backup to eDMR reporting [see permit section A. (3)].
Please be reminded that the receiving-stream is classified B; Trout; ORW [swimmable;protected
trout waters; Outstanding Resources Waters], and is protected according. Should adverse effects
or impacts to this waterbody be attributed to this facility,the Division may reopen this permit for
further evaluation.
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable, you have the right to an adjudicatory hearing,upon written request, submitted
within thirty(30) days after receiving this letter. Your request must take the form of a written
petition conforming to Chapter 150B of the North Carolina General Statutes, and you must file it
with the office of Administrative Hearings, 6714 Mail Service Center, Raleigh,North Carolina
27699-6714. Unless such a demand is made, this permit shall be final and binding.
State of North Carolina�Environmental Quality I Water Resources
1611 Mail service Center I Raleigh,North Carolina 27699-1611
919 707 9000

Stan Bryson
TWSA
Issuance,August 22,2017
Page 2
This permit is not transferable except after notifying the Division of Water Resources. The
Division may modify,revoke or re-issue this permit. Please note that this permit does not affect
your legal obligation to obtain other permits required by the Division of Water Resources, the
Division of Land Resources, the Coastal Area Management Act, or any other federal or local
government.
If you have questions, or if we can further assist you,please contact Joe R. Corporon, L.G. at
[ioe.corporon ,ncdenr.gov] or call his direct line(919) 807-6394.
Res tfully,
A
S. Jay Zimmerman, P.
Enclosure: NPDES Permit NCO063321 (issuance final)
AM
hc: NPDSIPrCogram s
ec: ARO/SWPS,,Landon Davidson;
OCU,Maureen Kinney

Permit NCO063321
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended, the
Tuckaseigee Water & Sewer Authority (TWSA)
is hereby authorized to discharge wastewater from a facility located at the
Cashiers # 3 WWTP
852 Cashiers Lake Road, Cashiers
Jackson County
to receiving waters designated as the Chattooga River in subbasin 03-13-02 of the Savannah River
Basin in accordance with effluent limitations,monitoring requirements, and other conditions set forth
in Parts I, II, III and IV hereof.
This permit shall become effective October 1, 2017.
This permit and authorization to discharge shall expire at midnight on August 31, 2022.
Signed this day August 22, 2017.
G
-Jay Zimmerman, P.G., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

Permit NCO063321
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the
permit conditions,requirements, terms, and provisions included herein.
Tuckaseigee Water & Sewer Authority (TWSA)
is hereby authorized to:
1. continue to operate an existing 0.200 MGD wastewater treatment facility consisting of.
• one 100,000-gallon equalization basin
• one 30,000-gallon equalization basin
• one 15,1 00-gallon digester
• two (2)each 104,000-gallon aeration basins
• one(1) 15,678-gallon clarifier
• one(1) 49,706-gallon clarifier
• rotating disc panel filters
• one 25,000-gallon digester
• dual (2)train liquid chlorine/liquid dechlorination contact chambers
• post aeration
this facility located at Tuckaseigee Water& Sewer Authority's Cashiers#3 WWTP, 852 Cashiers
Lake Road, Cashiers, Jackson County, and
2. discharge from said treatment works via Outfall 001, at the location specified on the attached map,
to the Chattooga River[stream index 3], a waterbody currently classified B; Trout; ORW within
subbasin 03-13-01 [HUC: 03060102] of the Savannah River Basin.
Page 2 of 6

Permit NCO063321
PART I
A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of the permit and lasting until expiration,the Permittee is
authorized to discharge 0.200 MGD of treated wastewater from Outfall 001. Such discharges shall be limited,
monitored and reported 1 by the Permittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARATERISTICS Monthly Weekly Daily Measurement Sample Sample
[PCs CODE] Average Average Max Frequency Type Location2
Flow 50050 0.200 MGD Continuous Recording I or E
Temperature(°C) 00010 Daily Grab E
Total Residual Chlorine3 50060 22 µg/L 2/Week Grab E
BOD,5 day(20°C)2 00310 15 mg/l 22.5 mg/l Weekly Composite I or E
Total Suspended Solids2 00530 30 mg/L 45 mg/L Weekly Composite I or E
Ammonia L1,1+3 as N] 00610 2.2 mg/L 6.6 mg/L Weekly Composite E
(Apr 1—Oct 31)
Ammonia[NH3 as N] 00610 4.8 mg/L 14.4 mg/L Weekly Composite E
(Nov 1—Mar 31)
PH 00400 Not<6.0 or>9.0 standard units Weekly Grab E
Dissolved Oxygen 00300 Daily average not<6.0 mg/L Weekly Grab E
Dissolved Oxygen 00300 Weekly Grab U&D
Fecal Coliform 31616 200/100 mL 400/100 mL Weekly Grab E
(geometric mean
Fecal Coliform 31616 Weekly Grab U&D
(geometric mean)
Temperature(°C) 00010 Weekly Grab U&D
Total Nitrogen 00600 Semiannually Composite E
Total Phosphorus 00655 Semiannually Composite E
Footnotes:
1. The Permittee shall submit monthly Discharge Monitoring Reports(DMRs)electronically using DWR's Electronic
Discharge Monitoring Report[eDMR]Program,as detailed herein[see Section A. (3)].
2. I=Influent;E=Effluent;U:min 50 feet upstream from the outfall. D:min 500 feet downstream from the outfall.
3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15%of the respective
influent value(i.e.,85%removal required).
4. Total Residual Chlorine(TRC).The Division shall consider compliant all effluent TRC values reported below 50
µg/L.However,the Permittee shall continue to record and submit all values reported by North Carolina-certified
test methods(including field certified),even if these values fall below 50 µg/L.
Condition: The Permittee shall discharge no floating solids or foam visible in other than trace amounts.
Page 3 of 6

Permit NCO063321
A. (2.) COLLECTION-SYSTEM MODIFICATION PERMITTING
[G.S. 143-215.1(a)]
A sewer line shall not be made tributary to this facility's collection system unless the Permittee applies
to modify this permit, and the Division approves its connection and operation. This includes a line
serving more than one building, lines crossing property boundaries under separate ownership, or lines
crossing rights-of-way.
A. (3.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and
program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on
December 21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit(Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)I
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. Until such time that the state's
eDMR application is compliant with EPA's Cross-Media Electronic Reporting Regulation
(CROMERR),permittees will be required to submit all discharge monitoring data to the state
electronically using eDMR and will be required to complete the eDMR submission by printing,
signing, and submitting one signed original and a copy of the computer printed eDMR to the
following address:
NC DEQ/Division of Water Resources/Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the
facility being physically located in an area where less than 10 percent of the households have
broadband access, then a temporary waiver from the NPDES electronic reporting requirements may
be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3)
or alternative forms approved by the Director. Duplicate signed copies shall be submitted to the
mailing address above. See"How to Request a Waiver from Electronic Reporting"section below.
Page 4 of 6

Permit NC0063321
Regardless of the submission method, the first DMR is due on the last day of the month following
the issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
Starting on December 21,2020, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
• Clean Water Act(CWA) Section 316(b)Annual Reports.
The permittee may seek an electronic reporting waiver from the Division(see"How to Request a
Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(l)(9),the permittee must identify the initial recipient at the time
of each electronic submission. The permittee should use the EPA's website resources to identify
the initial recipient for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity
(EPA or the state authorized by EPA to implement the NPDES program)that is the designated
entity for receiving electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for
each type of electronic submission and for each state. Instructions on how to access and use the
appropriate electronic reporting tool will be available as well. Information on EPA's NPDES
Electronic Reporting Rule is found at: http://www2.epa.gov/compliance/final-national-pollutant-
discharge-elimination-system-npdes-electronic-reporting-rule.
Electronic submissions must start by the dates listed in the"Reporting Requirements" section
above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to
the Division. Requests for temporary electronic reporting waivers must be submitted in writing to
the Division for written approval at least sixty(60) days prior to the date the facility would be
required under this permit to begin submitting monitoring data and reports. The duration of a
temporary waiver shall not exceed 5 years and shall thereupon expire. At such time,monitoring
data and reports shall be submitted electronically to the Division unless the permittee re-applies for
and is granted a new temporary electronic reporting waiver by the Division. Approved electronic
reporting waivers are not transferrable. Only permittees with an approved reporting waiver request
may submit monitoring data and reports on paper to the Division for the period that the approved
reporting waiver request is effective.
Page 5 of 6

Permit NC0063321
Information on eDMR and the application for a temporary electronic reporting waiver are found on
the following web page:
hitp://dey.nc.gov/about/divisions/water-resources/edmr
4. Sianatory Requirements ISupplements Section B. (11.) (b) & Supersedes Section B. (11.) (d)I
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part
II, Section B. (11.)(a)or by a duly authorized representative of that person as described in Part 11,
Section B. (11.)(b). A person, and not a position,must be delegated signatory authority for eDMR
reporting purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user
account and login credentials to access the eDMR system. For more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account,please visit
the following web page:
hi the//dN.nc.gov/about/divisions/water-resources/edn,
Certification. Any person submitting an electronic DMR using the state's eDMR system shall
make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF
CERTIFICATION WILL BE ACCEPTED:
"I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
5. Records Retention [Supplements Section D. (6.)I
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of at least 3 years from the
date of the report. This period may be extended by request of the Director at any time [40 CFR
122.41].
Page 6 of 6

J! 1,
Chattooga River
(flows SE)
LM T 16�i7 NC Hwy 64
3486
li"
NO
Cashiers Lake Rd.
� Off' ai. `.' �� �Ct �� •
A
Outfa11001
1 (F10WS south) td =_ �[ le
� /' 1
I Approx.property Ybound '
� it
%T � + a r¢" �it1
f Chattooga River
/ (flows west) �X � y `�, 4
63
It y .
NC Hwy 107
�!
Tuckaseigee Water and Sewer Authority Facility
Cashiers #3 WWTP Location
Receiving Stream: Chattooga River Map not to scale
Latitude: 35*06'11" N State Grid/Quad: G6SE/Cashiers,NC
Longitude: 83°06'25" W River Basin: Savannah
Stream Class: B;Trout;ORW Sub-Basin: 03-13-01 North NPDES NCO063321
gm Stream Semen 3 Hue: 03060102
Jackson County

DocuSign Envelope ID:77278171-CF7A-4442-9650-539263F 111 D8
ROY-COOPER NORTH CAROLINA
G 1:67nor Envlr*amental Quaftty
'_ilCHAEi. S_ REGAIN
Secretary
L=A CULPEPPER
Interbn Dinmior
August 29, 2018
Dan Harbaugh, Executive Director
Tuckaseigee Water & Sewer Authority
1246 W Main St
Sylva, NC 28779
SUBJECT: Compliance Inspection Report
TWSA Plant #3 (Cashiers)
NPDES WW Permit No. NCO063321
Jackson County
Dear Mr. Harbaugh:
The North Carolina Division of Water Resources conducted an inspection of the TWSA Plant #3 (Cashiers)
on 8/16/2018. This inspection was conducted to verify that the facility is operating in compliance with the
conditions and limitations specified in NPDES WW Permit No. NC0063321. Based on the on-site visit, the
facility was determined to be in compliance.
The following item was noted during the inspection:
• Staffing: ORC oversees two WWTPs approximately 50 minutes apart that require daily visitation.
Recommend additional staffing to help with general maintenance tasks.
Additional findings and comments are provided in the enclosed inspection report under Section D,
"Summary". If you should have any questions, please do not hesitate to contact me at 828-296-4500 or via
email at [e-mail].
Sincerely,
DocuSigned by:
OBABAESEC2434B4...
Mikal Willmer, Environmental Specialist
Water Quality Regional Operations Section
Asheville Regional Office
Division of Water Resources, NCDEQ
D. 0EnWwmm1N Ousis
North Carolina Department of Environmental Quality I Division of Water Resources
2090 U.S.70 Highway,Swannanoa,NC 28778
828-296-4500

DocuSign Envelope ID:77278171-CF7A-4442-9650-539263F 111 D8
ATTACHMENTS: Compliance Inspection Report
EC: WQS-ARO Server
LF
Stan Bryson-Wastewater Operations Superintendent
20180829_NCO063321_CEI
D. 0EnWwmm1N Ousis
North Carolina Department of Environmental Quality I Division of Water Resources
2090 U.S.70 Highway,Swannanoa,NC 28778
828-296-4500

DocuSign Envelope ID:77278171-CF7A-4442-9650-539263F 111 D8
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 I 2 15 I 3 I NCO063321 I11 12 I 18/08/16 I17 18 L d 19 L s j 201
211III I I I I I III I I I I I I I I I I I I I I I I I I I I I I III I I I I I f6
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA ----------------------Reserved-------------------
671 70Iu I 71 J 72 n 73I— !74 751 I I I I 80
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 oermit Number) 10:50AM 18/08/16 17/11/01
TWSA Plant#3
852 Cashiers Lk Rd Exit Time/Date Permit Expiration Date
Cashiers NC 28717 11:50AM 18/08/16 22/08/31
Name(s)of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data
Ben L Henson/ORC/828-586-5189/
Name,Address of Responsible Official/Title/Phone and Fax Number
Contacted
Stan D Bryson,1246 W Main St Sylva NC 28779H828-586-9318/
Yes
Section C:Areas Evaluated During Inspection(Check only those areas evaluated)
Permit Flow Measurement Operations&Maintenance CSO/SSO(Sewer Overflov,
Records/Reports Self-Monitoring Program Sludge Handling Disposal Pollution Prevention
Facility Site Review Effluent/Receiving Waters
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
Mikal Willmer o� Division of Water Quality//828-296-4686
8/29/2018
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
DocuSigned by: 8/2 9/2 018
EPA Form 3560-3(Rev 9-94)Previous editions are obsolete.
Page# 1

DocuSign Envelope ID:77278171-CF7A-4442-9650-539263F 111 D8
NPDES yr/mo/day Inspection Type (Cont.) 1
31 NCO063321 I11 121 18/08/16 117 18 I"I
Section D:Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary)
Inspector Mikal Willmer, with the Asheville Regional Office, conducted a compliance evaluation
inspection of the TWSA#3 Plant (Cashiers WWTP) on August 17, 2018. This inspection was
conducted to determine if the plant is being operated and maintained in compliance with NPDES
Permit No. NC0063321. Ben Henson, ORC, was present and assisted in the inspection.
Overall the plant is being well maintained and operated. The facility appeared to be in compliance at the
time of the inspection. It was noted during the inspection that TWSA is in the process of converting the
effluent sampler to flow proportional. Please notify the ARO when setup is complete.
Currently Mr. Henson is the ORC for two of TWSAs WWTP. It is approximately 50 minutes one way
between facilities that require daily (5xweek)visitation. Recommend additional staffing to help with
general maintenance tasks. Additionally, TWSA's Cashiers collection system staff should review the
current FOGS education program and grease trap/interceptor pumping schedules with users. Peak
season usage in the area has introduced significant grease into the WWTP. This can have a negative
effect on equipment and biological actiivity within the facility.
Page# 2

DocuSign Envelope ID:77278171-CF7A-4442-9650-539263F 111 D8
Permit: NCO063321 Owner-Facility: TWSA Plant#3
Inspection Date: 08/16/2018 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 0 ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: Primarily utilizes MLSS, VSS and DO.
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? 0 ❑ ❑ ❑
#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? 0 ❑ ❑ ❑
Comment: ORC reports he is using chlorine sticks instead of liquid chlorine.
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? 0 ❑ ❑ ❑
Is all required information readily available, complete and current? 0 ❑ ❑ ❑
Are all records maintained for 3 years(lab. reg. required 5 years)? 0 ❑ ❑ ❑
Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑
Is the chain-of-custody complete? 0 ❑ ❑ ❑
Dates,times and location of sampling ❑
Name of individual performing the sampling ❑
Results of analysis and calibration ❑
Dates of analysis ❑
Name of person performing analyses ❑
Transported COCs ❑
Are DMRs complete: do they include all permit parameters? 0 ❑ ❑ ❑
Has the facility submitted its annual compliance report to users and DWQ? 0 ❑ ❑ ❑
(If the facility is=or>5 MGD permitted flow) Do they operate 24/7 with a certified operator ❑ ❑ 0 ❑
on each shift?
Is the ORC visitation log available and current? ❑ ❑ ❑
Is the ORC certified at grade equal to or higher than the facility classification? 0 ❑ ❑ ❑
Is the backup operator certified at one grade less or greater than the facility classification? M ❑ ❑ ❑
Is a copy of the current NPDES permit available on site? ❑ ❑ ❑
Page# 3

DocuSign Envelope ID:77278171-CF7A-4442-9650-539263F 111 D8
Permit: NCO063321 Owner-Facility: TWSA Plant#3
Inspection Date: 08/16/2018 Inspection Type: Compliance Evaluation
Record Keeping Yes No NA NE
Facility has copy of previous year's Annual Report on file for review? 0 ❑ ❑ ❑
Comment: Samples are brought to TWSA laboratory at Plant#1. Raw laboratory data is maintained at
Plant#1. ORC has a Sample Analysis/Chain of Custody form he maintains on-site with
sample data, time, collector, laboratory personnel and analytical results.
Flow Measurement- Influent Yes No NA NE
#Is flow meter used for reporting? 0 ❑ ❑ ❑
Is flow meter calibrated annually? M ❑ ❑ ❑
Is the flow meter operational? 0 ❑ ❑ ❑
(If units are separated) Does the chart recorder match the flow meter? ❑ ❑ 0 ❑
Comment: Facility utilizes a flow chart recorder and totalizer unit. Chart is used for reporting.
Influent Sampling Yes No NA NE
#Is composite sampling flow proportional? ❑ 0 ❑ ❑
Is sample collected above side streams? 0 ❑ ❑ ❑
Is proper volume collected? 0 ❑ ❑ ❑
Is the tubing clean? 0 ❑ ❑ ❑
#Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑
Celsius)?
Is sampling performed according to the permit? 0 ❑ ❑ ❑
Comment: Influent sampler is time composite.
Equalization Basins Yes No NA NE
Is the basin aerated? 0 ❑ ❑ ❑
Is the basin free of bypass lines or structures to the natural environment? 0 ❑ ❑ ❑
Is the basin free of excessive grease? 0 ❑ ❑ ❑
Are all pumps present? 0 ❑ ❑ ❑
Are all pumps operable? M ❑ ❑ ❑
Are float controls operable? ❑ ❑ 0 ❑
Are audible and visual alarms operable? ❑ ❑ 0 ❑
#Is basin size/volume adequate? 0 ❑ ❑ ❑
Comment: No working floats or alarms present. Influent flow gravity feeds from the first EQ basin to the
second EQ basin. There is approximately 130,000 gallons of EQ capacity.
Aeration Basins Yes No NA NE
Page# 4

DocuSign Envelope ID:77278171-CF7A-4442-9650-539263F 111 D8
Permit: NCO063321 Owner-Facility: TWSA Plant#3
Inspection Date: 08/16/2018 Inspection Type: Compliance Evaluation
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? ❑ ❑ N ❑
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? E ❑ ❑ ❑
Is the DO level acceptable? 0 ❑ ❑ ❑
Is the DO level acceptable?(1.0 to 3.0 mg/1) 0 ❑ ❑ ❑
Comment: DO levels acceptable based on ORC's process control numbers reviewed during the
inspection. Total of three blowers on-site. One blower is continuously running. ORC
alternates blower used.
Secondary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑
Is the site free of excessive buildup of solids in center well of circular clarifier? ❑ ❑ 0 ❑
Are weirs level? 0 ❑ ❑ ❑
Is the site free of weir blockage? 0 ❑ ❑ ❑
Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑
Is scum removal adequate? 0 ❑ ❑ ❑
Is the site free of excessive floating sludge? 0 ❑ ❑ ❑
Is the drive unit operational? 0 ❑ ❑ ❑
Is the return rate acceptable (low turbulence)? ❑ ❑ ❑
Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑
Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth) ❑ ❑ ❑
Comment: ORC wastes from clarifier based on MLSS and Volatile numbers to maintain an appropriate
F/M ratio. Sludge level was not measured during the inspection. Two clarifiers onsite, but
ORC reports he only needs to run one.
Filtration (High Rate Tertiary) Yes No NA NE
Type of operation: Cross flow
Is the filter media present? 0 ❑ ❑ ❑
Is the filter surface free of clogging? 0 ❑ ❑ ❑
Is the filter free of growth? 0 ❑ ❑ ❑
Is the air scour operational? ❑ ❑ 0 ❑
Page# 5

DocuSign Envelope ID:77278171-CF7A-4442-9650-539263F 111 D8
Permit: NCO063321 Owner-Facility: TWSA Plant#3
Inspection Date: 08/16/2018 Inspection Type: Compliance Evaluation
Filtration (High Rate Tertiary) Yes No NA NE
Is the scouring acceptable? ❑ ❑ 0 ❑
Is the clear well free of excessive solids and filter media? ❑ ❑ 0 ❑
Comment: Rotating disk filters are used. Filters have backwashing capabilities for cleaning. Do not air
scour.
Pumps-RAS-WAS Yes No NA NE
Are pumps in place? 0 ❑ ❑ ❑
Are pumps operational? 0 ❑ ❑ ❑
Are there adequate spare parts and supplies on site? 0 ❑ ❑ ❑
Comment:
De-chlorination Yes No NA NE
Type of system ? Liquid
Is the feed ratio proportional to chlorine amount(1 to 1)? ❑ ❑ 0 ❑
Is storage appropriate for cylinders? ❑ ❑ M ❑
#Is de-chlorination substance stored away from chlorine containers? 0 ❑ ❑ ❑
Are the tablets the proper size and type? ❑ ❑ 0 ❑
Comment: ORC manually adjust dechlorination feed as needed.
Are tablet de-chlorinators operational? ❑ ❑ 0 ❑
Number of tubes in use?
Comment:
Flow Measurement- Effluent Yes No NA NE
#Is flow meter used for reporting? 0 ❑ ❑ ❑
Is flow meter calibrated annually? 0 ❑ ❑ ❑
Is the flow meter operational? 0 ❑ ❑ ❑
(If units are separated) Does the chart recorder match the flow meter? ❑ ❑ 0 ❑
Comment: Flow chart is used for reporting. Chart range is 0-666 qpm.
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional? ❑ 0 ❑ ❑
Is sample collected below all treatment units? 0 ❑ ❑ ❑
Is proper volume collected? ❑ ❑ ❑
Page# 6

DocuSign Envelope ID:77278171-CF7A-4442-9650-539263F 111 D8
Permit: NCO063321 Owner-Facility: TWSA Plant#3
Inspection Date: 08/16/2018 Inspection Type: Compliance Evaluation
Effluent Sampling Yes No NA NE
Is the tubing clean? 0 ❑ ❑ ❑
#Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑
Celsius)?
Is the facility sampling performed as required by the permit(frequency, sampling type 0 ❑ ❑ ❑
representative)?
Comment: Sample collection is currently time composite. TWSA is in the process of connecting the
effluent composite samplers to the flow meter. All wiring is run and will be connected by ISI
(calibration company).
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? 0 ❑ ❑ ❑
Are the receiving water free of foam other than trace amounts and other debris? 0 ❑ ❑ ❑
If effluent (diffuser pipes are required) are they operating properly? 0 ❑ ❑ ❑
Comment: Old mixed media filter basin is used as a reaeration tank and initial chlorine contact.
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit(frequency, sampling type, and 0 ❑ ❑ ❑
sampling location)?
Comment: 50' upstream and 500'downstream. New property owner downstream, but ORC reports no
issues gaining access to the sampling location.
Standby Power Yes No NA NE
Is automatically activated standby power available? 0 ❑ ❑ ❑
Is the generator tested by interrupting primary power source? 0 ❑ ❑ ❑
Is the generator tested under load? 0 ❑ ❑ ❑
Was generator tested &operational during the inspection? ❑ 0 ❑ ❑
Do the generator(s)have adequate capacity to operate the entire wastewater site? 0 ❑ ❑ ❑
Is there an emergency agreement with a fuel vendor for extended run on back-up power? 0 ❑ ❑ ❑
Is the generator fuel level monitored? 0 ❑ ❑ ❑
Comment: TWSA staff handle routine maintenance for the generator. Diesel level is maintained at or
above 50%. Self-tests under load every Wednesday at 12 in the summer and 1300 in the
winter.
Aerobic Digester Yes No NA NE
Is the capacity adequate? 0 ❑ ❑ ❑
Is the mixing adequate? ❑ ❑ 0 ❑
Is the site free of excessive foaming in the tank? M ❑ ❑ ❑
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DocuSign Envelope ID:77278171-CF7A-4442-9650-539263F 111 D8
Permit: NCO063321 Owner-Facility: TWSA Plant#3
Inspection Date: 08/16/2018 Inspection Type: Compliance Evaluation
Aerobic Digester Yes No NA NE
#Is the odor acceptable? 0 ❑ ❑ ❑
#Is tankage available for properly waste sludge? 0 ❑ ❑ ❑
Comment: Diffusers are present in the digester; however, it is being utilized as a facultative digester.
ORC reports increased solids breakdown operating the digester in this manner.
Grease Removal Yes No NA NE
#Is automatic grease removal present? ❑ ❑ 0 ❑
Is grease removal operating properly? ❑ ❑ 0 ❑
Comment: Mr. Henson states significant grease enters the facility during summer months. Collection
system staff should review grease education and removal with restaurants in the area.
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? 0 ❑ ❑ ❑
Comment: ORC reports minimal debris coming into the facility due to the use of grinder pumps
throughout the collection system.
Disinfection-Tablet Yes No NA NE
Are tablet chlorinators operational? 0 ❑ ❑ ❑
Are the tablets the proper size and type? 0 ❑ ❑ ❑
Number of tubes in use?
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: Chlorine tablets are used and added to the reaeration tank before entering the chlorine
contact chamber. Contact chamber has pumps to remove solids.
Page# 8