NC0026271_Regional Office Historical File Pre 2018 (20)

State of North Carolina
Department of Environment, 11
Health and Natural Resources �l
Division of Environmental Management
James-B. Hunt, Jr., Governor `
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
May 15, 1995
Mr. Bob Duncan
204 Main Avenue Drive S.E.
Taylorsville, North Carolina 28681
Dear Mr. Duncan:
7 4MMA,
r-
�ME�I-iE� ,
& NATURAL RESOURCES
MAY 16 1995
DIVISIdN OF ENVIRONMENTAL MADAGEMBIT_
MOORESVILLE REGIONAL OFFIGE
Subject: NPDES Permit Issuance -
Permit No. NCO026271
Town of Taylorsville WWTP
Alexander County
In accordance with the application for a discharge permit, the Division is forwarding herewith the
subject NPDES permit. This permit is issued pursuant to the requirements of North Carolina General
Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the US Environmental
Protection Agency dated December 6, 1983.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative
Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such demand is
made, this decision shall be final and binding.
Please take notice this permit is not transferable. Part II, EA addresses the requirements to be
followed in case of change in ownership or control of this discharge.
This permit does not affect the legal requirements to obtain other permits which may be required -by
the Division of Environmental Management or permits required by the Division of Land Resources,
Coastal Area Management Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Mr. Greg Nizich at telephone
number [phone], extension 541.
Sincerely,
Original Signed By
David A Goodrich
A. Preston Howard, Jr., P.E.
cc: Central F_iles__ _
rMooresville. Regional _Office
MF Roosevelt Childress, EPA
Permits and Engineering Unit
Facilities Assessment Unit
Aquatic "Survey and Toxicology
Operator Training and Certification Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

N.C. DEPT, OF
ENVIRONMENT, HEALTf,
e NATURAL RESOURCES
MAY .1 6 1995
Permit No. NCO026271
OIVISIgi OF ENVIO0EItff11TA1 @gAtaAGEA9ENT
STATE OF NORTH CAROLINA I100REsma Onto OFFICE
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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,
Town of Taylorsville
is hereby authorized to discharge wastewater from a facility located at
Taylorsville Wastewater Treatment Plant
junction of NCSR 1108 & Minnington Road
south of Taylorsville
Alexander County
to receiving waters designated as Lower Little River in the Catawba River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, and III hereof.
This permit shall become effective July 1, 1995
This permit and authorization to discharge shall expire at midnight on June 30, 2000
Signed this day May 15, 1995
original Sign..ed By
David A. Goodrich
A. Preston Howard, Jr., Director
Division of Environmental Management
By Authority of the Environmental Management Commission

Permit No. NC0026271
SUPPLEMENT TO PERMIT COVER SHEET
Town of Taylorsville
,is hereby authorized to:
1. Continue to operate a 0.43 MGD wastewater treatment facility consisting of a bar screen, flow
splitter box, dual Imhoff tanks, dual dosing tanks, dual trickling filters, an aeration basin, a
secondary clarifier, an aerobic digestor, sludge holding tanks, sludge drying beds and chlorine
disinfection facilities located at Taylorsville Wastewater Treatment Plant, junction of NCSR
1108 & Minnington Road, south of,Taylorsville, Alexander County (See Part III of this
Permit),, and
t
2. Discharge from said treatment works at the location specified on the attached map into the Lower
Little River which is classified Class C waters in the Catawba River Basin.

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A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 -
October 31) Permit No. NCO026271
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as
specified below:
J
Effluent Characteristic Discharge Limitations
Monitoring
Requirements
Measurement
Sample "Sample
Monthly Avq Weekly Avg. Daily Max
Frequency
Type Location
Flow 0.43 MGD
Continuous
Recording I or E
BOD, 5 day, 20°C"" 30.0 mg/I 45.0 mg/I
Weekly
Composite E,.[
Total Suspended Residue" 30.0 mg/l 45.0 mg/1
Weekly
Composite E, I
NH3 as N 17.8 mg/1
Weekly
Composite E
Fecal Coliform (geometric mean) 200.0 /100 ml 400.0 /100 ml
Weekly
Grab E
Total Residual Chlorine
2/Week
Grab E
Temperature
Weekly
Grab E
Total Nitrogen (NO2 + NO3 + TKN)
Quarterly
Composite E
Total Phosphorus
Quarterly
Composite E I
Copper
Monthly
Composite E
Cyanide
Monthly
Grab E
* Sample locations: E - Effluent, I - Influent
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not
exceed 15 % of the
respective influent value (85
% removal).
*** Chronic Toxicity (Ceriodaphnia) P/F @ 4.4%; January, April, July and October; See Part III Condition F.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
11

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April. 1 - October 31) Permit No. NC0026271
During the period beginning on the effective date of the permit and lasting until -expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. (Continued)
Effluent Characteristic Discharge Limitationi Monitoring Requirement£
Units (specify Measurement Sample 'Sample
Monthly Avg Weekly Avg. Daily Max Frequency Tvpe Location
Zinc Monthly Composite E
Chlorides Monthly Composite E
Chronic Toxicity"' Quarterly Composite E
9

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 - March 31) Permit No. NCO026271
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristic
Flow
BOD, 5 day, 20°C•'
Total Suspended Residue"
NH3 as N
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Copper
Cyanide
Discharge Limitations
Monthly Avg Weekly Avg. Daily Max
0.43 MGD
30.0 mg/I 45.0 mg/1-
30.0 mg/I 45.0 mg/I
200.0 /100 ml 400.0 /100 ml
* Sample locations: E'_ Effluent, I - Influent
Monitoring
Requirements
Measurement
sample
•Sample
Frequency
Type
Location
Continuous
Recording
I or E
Weekly
Composite
E, I
Weekly
Composite
E, I -
2/Month
Composite
E
Weekly
Grab
E
2/Week
Grab
E
Weekly
Grab
E
Quarterly
Composite
E
Quarterly
Composite
E
Monthly
Composite
E
Monthly
Grab
E
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value (85
% removal).
*** Chronic Toxicity (Ceriodaphnia) P/F @ 4.4%; January, April, July and October; See Part III, Condition F.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 - March 31) Permit No. NC0026271
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. (Continued)
Effluent Characteristic
Zinc
Chlorides
Chronic Toxicity***
Discharge Limitations
Units (specify
Monthly Avg Weekly An. Daily Max
Monitoring Requirements
Measurement Sample *Sample
Freguency Tyae Locatlon
Monthly Composite E
Monthly Composite E
Quarterly Composite E

Part III
Permit No. NCO026271
F. CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September 1989) or subsequent versions. .
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is 4.4% (defined as treatment two in the North Carolina procedure document).
The permit holder shall perform quarterly monitoring using this procedure to establish compliance
with the permit condition. The first test will be performed after thirty days from the effective date
of this permit during the months of January, April, July and October. Effluent sampling for this
testing shall be performed at the NPDES permitted final. effluent discharge below all treatment
processes.
All toxicity testing results required as part of this permit condition willbe entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DEM Form AT-1 (original) is to be sent to the following address:
Attention:
Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607 ' .
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving stream; this
permit may be re -opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
G. Industrial Waste Survey
The permittee shall update and submit to the Division its Industrial Waste Survey (IWS) of all -
users of the sewer collection system by October 1, 1995.

SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
a of Facility:
,mer or Contact Person:
Mailing Address: -'2 otl Ma,N 5./%. , K c
County: Au=xa i�iZ Telephone: C-4o 632— zz18
Present Classification: New Facility Existing Facility ✓_
NPDES Per. No. NC00 2l_2--1 Nondisc. Per. No.WQ Health Dept.Per No.
Rated by: _tM N. Co"n,� A /MZp Telephone: Date:_jLj,3ss
Reviewed by:. Health Dept. Telephone:
Regional Office Telephone:
- Central Office Telephone:
ORC: l�Rir'r-J 1-5m cs Grade: IL Telephone: e-3 -2 ns-i c)
Check Classification(s): Subsurface, Spray Irrigation Land Application
Wastewater Classification: (Circle One) I II III - IV Total Points:_.
C{X�",IDEREDWASTE TREATMENT FOR THE PURPOSE OFCl_ASSIErATiON'ALS'OSTEMS QQN
4LST1A4" Ter.li.
SUBSURFACE CLASSiFiCATiCN
(check all, units that apply)
1. -
septic tanks
2
pump tanks
3.
siphon or pump -dosing systems
4.
sand filters
5.
grease trap/interceptor i
6_
oii/water separators
7_
gravity subsurface treatment and disposal:
-8.
pressure subsurface treatment and disposal:
SPRAY IRRJGATION CLAssIFICATICN
(check all units that apply)
1�
preliminary treatment (definition no. 32 )
2
lagoons
3.
septic tanks
4.
pump tanks
5,
pumps
6.
sand filters
7—
grease trapinterceptor
a.
OR/water separators
9--disinfection
10.
chemical addition for nutrient/aigae control
11.
spray irrigation of wastewater
In: addition to the above- classifications, . pretreatment of wastewater In excess of these components shall
be rated using the point rating system and will require an operator with an. appropriate dual certification.
LAND APPUCATiON/RESIDUALS CLASSIFiCATION (Applies only to permit holder)
1. Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACILITY CLASSIFICATION
The following systems shall.be assigned a Class I classification, upleq the flow is of a significant quantity or the technology is unusually
complex, to require consideration by the Commission on a case -by -case basis: (Check it Appropriate)
1. - Oiltwater Separator Systems consisting only of physical separation, pumps and disposal;
2-__Septla Tank/Sand Fitter Systems consisting only of septic tanks, dosing apparatus, pumps,sand fitters, disinfection
and direct discharge; .
3` Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed400p Recycle Systems;
5. Groundwater Remediation Systems consisting only of oiUwater separators, pumps, air -stripping, carbon adsorption, disinfection
and dtsposal;
6. Aquacutture operations with discharge to surtace .waters;
7— Water Plant sludge handling and back -wash water treatment;
8. Seafood Processing consisting of screeningand disposal.
s. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified it permitted after July 1,
IM or It upon inspection by the Division, it Is found that the system Is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassification by the Commission, in writing,

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Sand or Mixed -Media Filters - lory ratq. .r...».. _ » �...»...._..._.».:._.»... ».». �2 high rue............««...»_ .................. ...5
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Treatment pmasses ,for removal of metal or ryaNds...».»».........»._. »««_.».»..»..».».».».......».«....«.«._.15
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treatment processes for removal of toxic materials other than metal or ryankfe_...-
(7) S! I ETREATMENr
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Aerobic........_ .....«..«_.».....«...».«.»..:_.«.».«...»......_......._«..«....._.................. LSD.
Unheated
(b)
Sludge Stabilization (chemical or thermal)» _�-_ -».»...----_---_»-....._.._...._.............»..._.«...».._».».. 5
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(c)
-
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(d)
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Sludge Thickener (gravity) .....
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Sludge Gas Utilization (Including gas storage)._.__...»..--._.._»...»»« ..:.». » �««.«........... »:2
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Sludge Incinerator (not Including activated carbon regentration)..»--»»._.».....».»........».:_..........«._.»....t 0
(k)
Vacuum Fiher, Centrifuge, or Flier Press or other similar dewatering devices.— 0
(a) RESIDUALS U LIZATiOWDISPOSAL (including incinerated ash)
(a)
Lagoons.. �. ».»._..».....».»......_....».»».........».............2
(b)
Land Application (wAace and subsurface) (see definition 22a)»
by contracting to a land application operator or landfill operator who holds the land application permit
orlandil permit«..»«.«......:»..:_..»._«.«._._».«.«.«.».....««.«»..»�». »...«».«_.«......:.».«.»......_....»...«.2
(cam
dicated LandlUI(burial) by the pernittes of the wastewater treatment facUfty. _....._.._..»,»..«.
(9)
(a)
Chlorination.5
(b)
Dechbrirtation....._.....»...»..»»....._,�....�..........._.__...._....»._.._»_....«..«......».».....».».».
(c)
Ozone........_ ....»._»...»...».. _.»............:.:_.....» ...�..... _�.........._..»....»_. _.....« ».»..»....5
(d)
Radtatlon.»-----...:.-«-__..».«-..--.......__..« ....».»..».»»......_......._.»».».........._.»_..__....._......».«:...»..5
(10) CHEMICAL ADDITION SYSTEM(S) ( see definition No, 9) (not applicable to chemIcal addltlons rated as hem (3)0),
(5)(a)(M), (6)(a). (6)(b). M(b). (7)(e). (Da). (g)(b) or (o)(c) 5 points each:
List
._.. -----—
(11•) LascaA11NEcx1 UNfwFiOCl
(a)
Holding Panels, Holding Tanks or Settling Ponds for Organic or Toxic Materials Including wastes from mining
operations containing nitrogen or phosphorus compounds in amounts significantly greater than Is common
for domestic wastewater....... .............. .»._.. »...
(b)
Effluent Flow Equalization (not applicable to storage basins which are inherent In turd application systems)-2
(c)
Stage Discharge (not applicable to storage basins Inherent In land application systems),._-.--.
...
M
(e)
Stand -By Power Supply ... ...... ...:_.»........»»._..:».» _».».........._._ .._._._._. »_.«.»» ......»
(1)
Thermal Pollution Control Devia._.»....«__.» ,.«.».»._.__.._« .. ...._..........»...«.»..._.....»�».._»..._.3
TOTAL POINTS..«..»._»....»...».....�.....»_....»��»._....«».».. -l8
gASSFiCATICN
Clad.......».».........»............�_.».»..»....«.«......_.».......»«....._—w__5-25. Points
.Class It........»».......»»«.»........»...» »».......» 26-50 Points
Ctasll..«....._......-............ ...... _---51-65 Points
Class N»........---._.--66•Up Points
Facilities having a rating of one through four points, ktdusive, do not require a corthied operator. .
FadSties having an activated sludge process wit be assigned a minimum classification of Class IL
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification d Class tL
Fadities having treatment processes for the biological removal of phosphors will be assigned a minimum classification of Class'ill.
4004 DEFNiiiONS
The following definitions shaft apply throughout tttfs Subehapter.
(1) Autvated Carbon Beds. A physleaVcdlemkal method for reducing soluble organic material from wastewater efnuare, The column -type beds used in this
method will have a flow rate varying from two to eight gallons per minute per square foot and may be efther upfbw or downflow carbon beds. Carbon' may of
may not be regenerated on the wastewater treatment plant she; :''` '<' ; .. .
(2) Aerated Lagoons. A basin In which all solids are maintained In suspension and by which bkcbgkal oxidation or orpark itIatter Is reduced through art"Iciaily'
accelerated transfer of oxygen on a flow -though basks; ": .i2"usi . 3a)`
(3) AentOom A process of bringing about Intimate contact between air or high purity oxygen In a liquid by spraying.:j4ttatlari or¢tlusbnX3:) Extended
Aeration. An activated stud
ge process utilizing a minimum hydraulic.delembn time of to hours.
(4) Agriculturally managed she. Any site on which a crop is produced. managed. and harvested (Crop Includes graswa;. grabs, trees,''atc-); ' := •. • -:. ; ..
(5) Air Stripping. A process by which the ammonium ion Is first converted to dissolved ammonia (pH adjustment) with the ammonia. thorn released to the
�P�e by Physical mean:: or other similar processes which remove petroleum products such as benzene. toluene. end ;,"rie; '
(6).Catbon Regerrretba Tits regeneration d exhausted carbon by the use of a furnace to provide extremely Ngh t�rnQ�ratures rnfiieh`voiatglzeartd oxidlre tits
absorbed impur ties;
(T) Carbonaceous Stage. A stago of wastewater treatrnent designed to achieve he=ndaryr ef8uert Inks;
(3) Centrifuge. A rtnedunical device In which csmtrifugal fora Is used to separate solids from Squids or to separate nqu" oPtlffaririf donee
(D) Chemical Addition Systems- The addition of chemical(s) to wastewater at an application point for purposes of worcvingjcgds• nmovat. pwidiustment,
alkathhy control. eta: the capability to experiment with different chemicals and dhfenit application pofms'to achieve.a specltb•iesult'wftl bi
system; the capability to add chemicals) to dual units will be rated as one system; capability to add a chemical at a dlHeret*appt{catfoni poirrts toss dmerent`, :'„-: ;�'d^
purposes wit result In the systams being rated as separate systems;
(10) Chemical • Sludge Conditioning, The addhbn of a chemlcal compound such as ilme, ferric chloride, or a polymer to wet sludge io coalesce the mior ass prto
Is licatJon to a dawatering device.
(11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater eontaW ng tn«pa•nle * non-toxtc'mate rfalr from sand, gravel,
crushed stone or other similar eperatrons. Such systems shaft carry a maxlmum of two points ragardless d pumping fadiltiss`oriny.'othe- iipptiifeniriibs;
(12) Combinad Removal d Carbonaceous BOO and Nitrogenous Removal by NhrffTrailon. A single stage system required tc achyeve Psni>tt`ifflwnt, rn arrBOD': : i ="
and ammonia nitrogen within the same blo;ogical resotor,-
(15) Dechlorfnatbn. The partial or corrQtete reduction of resIdual.chlorine In a Squid by any chernical or physical process' ,'= " +;
(14) Denkrtfkalbn Process. The conversion of rAnde-nhrogen to nitrogen gas;

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