NC0021601_Permit Modification_20010326

NPDE!i DOCUMENT SCANNINO COVER SHEET
NPDES Permit:
NCO021601
Tryon WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
March 26, 2001
This document is priatea on reuse paper - ignore any
content on the reverse side

r
y
Mr. Joel Burrell
Town of Tryon
301 North Trade Street
Tryon, North Carolina
Dear Mr. Burrell:
Michael F. Easley
ow Governor
��� William G. Ross, Jr., Secretary
NCDENR North Carolina Department of Environment and Natural Resources
Kerr T. Stevens, Director
Division of Water Quality
28782
March 26, 2001
Subject: NPDES Permit Modification
Permit NC0021601
Tryon WWTP
Polk County
The Division has received and reviewed your request to modify the subject permit. We have no objectior. to this
request. This permit modification changes the sample type for mercury from composite to grab.
Please find enclosed the revised (and reformatted) effluent page. The revised page should be inserted into your
permit. The old page may then be discarded. All other terms and conditions contained in the original permit remain
unchanged and in full effect. This permit modification is issued under the requirements of North Carolina General
Statutes 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental
Protection Agency.
If any parts, measurement frequencies or sampling requirements contained in this permit modification 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 a written petition conforming to Chapter 150B of the North
Carolina General Statutes, filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North
Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
If you have any questions concerning this permit modification, please contact Charles Weaver at [phone],
extension 511.
Sincerely,
ai Ken T. Stevens
cc: Central Files
Asheville Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
NPDESUnit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer VISIT us ON THE INTERNET 0 http://h2o.enr.state.nc.us/NPDES

1
Permit NC0021601
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (1.5 MGD)
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Avera a
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
!Yee
Sample Locationl
Flow
1.5 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 day 209C 2
30.0 mg/L
45.0 mg/L
Weekly
Composite
Influent & Effluent
Total Suspended Res1due2
30.0 mg/L
45.0 mg/L
Weekly
Composite
Influent & Effluent
NH3as N
2/Month
Composite
Effluent
Temperature CC)
Daily
Grab
Effluent,
Upstream & Downstream
Fecal Coliform
(geometric mean
200/100 ml
400/100 ml
Weekly
Grab
Effluent,
Upstream & Downstream
Dissolved Oxygen3
Weekly
Grab
Effluent,
Upstream & Downstream
Conductivity
Weekly
Grab
Upstream & Downstream
Total Residual Chlorine
2/Week
Grab
Effluent
Total Nitrogen
NOz+NOs+TKN
Quarterly
Composite
Effluent
Total Phosphorus
Quarterly
Composite
Effluent
Chronic Toxic' ,5
Quarterly
Composite
Effluent
Cadmium
5.4 L
2/Month
Composite
Effluent
Lead
68.0 N L
2/Month
Composite
Effluent
Mercury6
0.03 Ng/L
2/Month
Grab
Effluent
Arsenic
Monthly
Composite
Effluent
Chloride
Monthly
Composite
Effluent
Copper
Monthly
Composite
Effluent
Fluoride
Monthly
Composite
Effluent
Selenium
Monthly
Composite
Effluent
Zinc
Monthly
Corn osite
Effluent
H7
Weekly
Grab
Effluent
Footnotes:
1. Upstream = at least 100 feet upstream from the outfall. Downstream = downstream from the outfall, 50 feet upstream of
the Pacolet River. Upstream and Downstream monitoring shall be conducted three times per week in June, July, August &
September and once per week during the other months of the year.
2. The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective
influent value (85% removal).
3. The daily average dissolved oxygen effluent concentration shall not be less than 1.0 mg/L.
4. Chronic Toxicity (Ceriodaphnia) P/F at 37%: March, June, September & December (see A. (2)).
5. Monitoring for toxicants shall coincide with effluent toxicity testing.
6. The detection limit for mercury is 0.2 µg/L. If the measured levels of mercury in the effluent samples are below the
detection limit the effluent value is considered to be zero for compliance purposes. Such sample results should be reported
as <0.2 µg/L on that month's DMR form.
7. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored 3/week at the
effluent by grab sample
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Town of Trip®
Wastewater Pfem
301 North Trade St
Tryon, North Carolina 28782
Phone [phone]
Fax [phone]
March 13, 2001
Dave Goodrich
Supervisor
NPDES Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re: Request for Modification to NPDES Permit No. NC 0021601 issued to the Town of
Tryon Regarding "Sample Type" for Mercury.
Dear Mr. Goodrich:
In Section A(1), the above -referenced NPDES permit currently requires the Town of Tryon
("Tryon") to take a composite sample of the effluent from its wastewater treatment plants
effluent, over a 24 hour period, for several parameters, including mercury. With your Division's
encouragement, we have been becoming familiar with, and experimenting with, "clean hands/
dirty hands" sampling methods, which involves taking grab samples instead of composite
samples. We agree with the experts who have concluded that `clean hands/dirty hands" sampling
techniques provide relatively more reliable data. For this reason, we would like to begin to use
"clean hands/dirty hands" sampling methods for purposes of compliance monitoring for
mercury. We therefore request that the Town's NPDES permit be modified as soon as possible
to require grab sampling instead of composite sampling for compliance monitoring purposes for
mercury. This request only applies to the mercury parameter in the permit.
If you have any questions concerning this request, please feel free to give me a call
[phone].
dfoe Joel Burrell, ORC
Cc: David Draughn, Town Manager
Keith Johnson, Poyner & Spruill, Legal Counsel
NAR
L—BBENCANCH

• �4
TOXICANT ANALYSIS
Facility Name
tryon wwtp
Parameter =
mercury
P
NPDES #
nc0021601
Standard =
0.012
1dug/1
Ow (MGD)
0.45
7010s (cfs)
4
n
BDL=1 /2DL
ctual Data
RESULTS
IWC (%)
14.85
1
Std Dev.
#DIV/0!
c'ving Stream
vau hn creek
2
Mean
#DIV/01
Stream Class
c
3
C.V.
#DIV/01
4
FINAL RESULTS
5
mercury
6
Mult Factor =
Max. Pred Cw
0
ug/
7
Max. Value
0
pgl
Allowable Cw
0.1
u
8
Max. Pred
0
jig/
Max. Value
0
9
Allowable
0.08
jug/
10
IDiwpoll
'oo Water Quality
MEMO From: w'4��£1 Date: flit f y
To: �y°'1'' �P `lam Subject: Xf;74--rt ,w w,osftR&`o1-
44
8/26/99
'PAGE 1

TOXICANT ANALYSIS
Facility Name
tryon wwtp
Parameter =
mercury
P
NPDES #
nc0021601
Standard =
0.012
pg/I
Ow (MGD)
0.5
7Q10s (cfs)
4
n
BDL=1/2DL
ctual Data
RESULTS
IWC (%)
16.23
1
Std Dev.
#DIV/O!
c'ving Stream
vau hn creek
2
Mean
#DIV/O!
Stream Class
c
3
C.V.
#DIV/01
4
FINAL RESULTS
5
mercury
6
Mult Factor =
Max. Pred Cw
0
ug/
7
Max. Value
0
ug/
Allowable Cw
0.1
ug/
8
Max. Pred
0
ug/
Max. Value
0
9
Allowable
0.07
Ng/
10
8/26/99 'PAGE 1

16
Tryon WWTP
Residual Chlorine
Ammonia as NIi3
(summer)
7Q10 (CFS)
4
7Q10 (CFS)
4
DESIGN FLOW (MGD)
0.45
DESIGN FLOW (MGD)
0.45
DESIGN FLOW (CFS)
0.6975
DESIGN FLOW (CFS)
0.6975
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
UPS BACKGROUND LEVEL (
0
UPS BACKGROUND LEVEL
0.22
IWC (%)
14.85
IWC (%)
14.85
Allowable Concentration (ug
114.49
Allowable Concentration (rr
5.47
Ammonia as NH3
(winter)
7Q10 (CFS)
5
Fecal Limit
200/100m1
DESIGN FLOW (MGD)
0.45
Ratio of 5.7 :1
DESIGN FLOW (CFS)
0.6975
STREAM STD (MG/L)
1.8
UPS BACKGROUND LEVEL
0.22
IWC (%)
12.24
Allowable Concentration (n'
13.13
8/26/99
JMN NCO021601

Tryon WWTP
Residual Chlorine
Ammonia as NH3
(summer)
7010 (CFS)
4
7Q10 (CFS)
4
DESIGN FLOW (MGD)
0.5
DESIGN FLOW (MGD)
0.5
DESIGN FLOW (CFS)
0.775
DESIGN FLOW (CFS)
0.775
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
UPS BACKGROUND LEVEL (
0
UPS BACKGROUND LEVEL
0.22
IWC (%)
16.23
IWC (%)
16.23
Allowable Concentration (ug
104.74
Allowable Concentration (rr
5.03
Ammonia as NH3
(winter)
7Q10 (CFS)
5
Fecal limit
200/100m1
DESIGN FLOW (MGD)
0.5
Ratio of 5.2 :1
DESIGN FLOW (CFS)
0.775
STREAM STD (MG/L)
1.8
UPS BACKGROUND LEVEL
0.22
IWC (%)
13.42
Allowable Concentration (rr
11.99
8/26/99
JMN NCO021601

State of North Carolina
Department of Environment
and Natural Resources
Division.of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
May 20, 1999
Mr. Joel Burrell
Town of Tryon
423 North Trade Street
Tryon, North Carolina 28782
1' • '
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
NPDES Pera t NCO021601
Tryon WWTP
Polk County
Dear Mr. Burrell:
On May 13, 1999, the Division received your request to correct the description of installed
components at the subject facility. This permit modification revises the Supplement to Permit Cover
page to correctly list the installed components at the facility.
Please find enclosed the revised permit page. This pages should be inserted into your permit. The
old page may then be discarded. All other terms and conditions contained in the original permit
remain unchanged and in full effect. This permit modification is issued under the requirements of
North Carolina General Statutes 143-215.1 and the Memorandum of Agreement between North
Carolina and the U. S. Environmental Protection Agency.
If any parts, measurement frequencies or sampling requirements contained in this permit
modification 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 a written petition
conforming to Chapter 150B of the North Carolina General Statutes, 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.
If you have any questions concerning these permit modifications, please contact Charles Weaver
at [phone], extension 511.
7ncer Y '
1 4� /M -/� k �
T. Stevens
cc: Central Files
Asheville Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
NPDES 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

Permit NCO021601
SUPPLEMENT TO PERMIT COVER SHEET
The Town of Tryon is hereby authorized to:
1. Continue to operate an existing 1.5 MGD wastewater treatment facility with the
following components:
♦ Primary screening
♦ Grit removal
♦ Extended aeration
♦ Secondary clarification
♦ Chlorine disinfection
♦ Aerobic digester
♦ Sludge drying beds
The facility is located at the Tryon WWTP at the end of NCSR 1504 east of Tryon in
Polk County.
2. Discharge from said treatment works at the location specified on the attached map
into Vaughn Creek, classified C waters in the Broad River Basin.

MkV-13-99 THU 12; : G PSI TOWK OF TRYON FAX KO, 828 859 0653 F. 1
TOWN OF TRYON
423 N. TRADE
TRYON, NORTH CAROLINA 28782
[phone] - FAX (828) 859-M53
FAX TRMSMITTAL SHEET
To.- AICIPCAlf-
Date: 5 -13- q9
FaX Number: 9 0,13 3- o +7 49
Total Pages Including Transmittal Sheet z
From: ; j r.,2k. u- — 'r01O& j9VQA) Wt�
Comments: M ' ' _a,k.QY1.. ! r.�nQ� vKxvt-� '"Cep &Ann .;+ C044-
JS kaftA-

i MA!-13-99 THU 12::1 PM TOWN OF TRYON FAK NO. 828 859 3653 F, 2
Permit No. NCO021601
SUPPLEMENT TO PERMIT COVER SHEET
Town of Tryon
.s hereby authorized to:
1. Continue to operate the a isti�ag 1.5 MGD wastewater treatment facility consisting of primary
screening, grit removal, extended aeration, secondary clarification and chlorine disinfection,
�S--I3r.m'.aWr-feeEI an
s1 �css), aerobic digestcr, and sludge drying beds located at fxion WWTP, at the
end of NCSR 1504, east of Tryon, Polk County (See Part Ili, A of this pennit), and dischargc
from outfall 001,
2. Discharge from said treatment works and associated outfalls at the locations specified on the
attached map into Vaughn Creek (Class C waters) in the goad River Basin.
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dl rn sys h4yf,
_ C:
TemA
,ce. .vo Veoj,�e 9,q
zosP pled Mt&?heoe /.5, 95 -� ��+ w + �' om �. �rajL At
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-%"-Its
-Sae'( &yre-I (

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
February 22,1999
Mr. Clarence Henson
Town of Tryon
423 North Trade Street
Tryon, North Carolina 28782
1\
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Issuance of NPDES Permit NCO021601
Tryon WWTP
Polk County
Dear Mr. Henson:
The Division received your application for a wastewater discharge permit on June 29, 1998.
Division personnel have reviewed and approved your application. Accordingly, we are forwarding the
attached NPDES discharge 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 U.S. Environmental Protection Agency dated December 6, 1983, and as subsequently amended.
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 note that this permit is not transferable except after notice to the Division. The Division
may require modification or revocation and reissuance of the permit.
This permit does not affect the legal requirements to obtain other permits which may be
required by the Division of Water Quality or permits required by the Division of Land Resources, the
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 Paul Clark at telephone
number [phone], extension 580.
Sincerely,
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P. E.
cc: Central Files
Asheville Regional Office/Water Quality Section
Mr. Roosevelt Childress, EPA
NPDES Unit
Point Source Compliance Enforcement Unit
Aquatic Toxicology Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Alfirmative Action Employer 50% recycled 110% post -consumer paper

Permit No. NCO021601
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
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 Tryon
is hereby authorized to discharge wastewater from a facility located at
Tryon Wastewater Treatment Plant
At the end of NCSR 1504
East of Tryon
Polk County
to receiving waters designated as Vaughn Creek in the Broad River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, III, and IV hereof.
The permit shall become effective April 1, 1999
This permit and the authorization to discharge shall expire at midnight on December 31, 2003
Signed this day February 22, 1999
Original Signed By
David A Goodrich
A. Preston Howard,, Jr., ., erector
Division of Water Quality
By Authority of the Environmental Management Commission

SUPPLEMENT TO PERMIT COVER SHEET
Town of Tryon
is hereby authorized to:
Permit No. NC0021601
1. Continue to operate the existing 1.5 MGD wastewater treatment facility consisting of primary
screening, grit removal, extended aeration, secondary clarification and chlorine disinfection,
sulfur dioxide dechlorination, sludge dewatering/concentrator system (polymer feed and
sludge belt press), aerobic digester, and sludge drying beds located at Tryon WWTP, at the
end of NCSR 1504, east of Tryon, Polk County (See Part III, A of this permit), and discharge
from outfall 001,
2. Discharge from said treatment works and associated outfalls at the locations specified on the
attached map into Vaughn Creek (Class C waters) in the Broad River Basin.

�� ti- '�// ``�� J � � /• [ • \may i •.�~�`t�. � � �
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r—.
It-
001-Latitude: 350 12' 43"
001-Longitude: 82013' 12"
USGS Quad #: G10NW
River Basin #: 030806
Receiving Stream: Vaughn Creek
Stream Class: C
Town of Tryon
N00021601
Polk County
Tryon ��'TP

A(1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NCO021601
Beginning on the effective date of this permit and lasting expiration, the Permittee is authorized to discharge treated wastewater from Outfall 001 to Vaughn
Creek. Such discharges shall be limited and monitored by the Permittee as specified below:
eS�nv�Fr.StFi..rrs.`�:�YT.Ya�, xia �:s ,-':�'YP`:���.M c.••�'a•'
. EFFLUENT C A CTERISTICS'
�L .cr , us
:i.; .� - ,.Lf^',�.,•"i .".g�C r' .u'l z "k:. {{5�,i� �:a •pr: .ate fir..L..7:•
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tr : Er:
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�!• . fi k SR'�-N.i"•` K.i.... riiy�'i." !c1ti "' qu•. X i�*u�;
{� EFFLUENT=LI I AT ` Y -
�. M T IONS,_ -
j - �1?a,rfiC':,s,,:,'.,,, s •. "" .?4' i:. uC r '�7y i`.a- .:�7'�6
-�; •�F +, ,z;.. �^.�!{ �''��
•`' r 3
�� ONI ORI G R UIREMENTS
dr,�e :_'�¢A'^' .�.•.y:
3.%,,,..«.�"{E"..•'�'. . •"'i �X ;. 'ate ..: "F',r??T-�Ffi. " .w�' .'.:,i�3-
fir•
Month).M'...-
�. _ Y
,: ' Average y
=, v;Weekf
Y
i.�Y?, Y. 't;
Average
, tt
�.rDailMeasuremey
"i'. l
'` Maximum
-
t'
1
:rw
Frequency,_.
-
S le'
,, .�µ,�.
s. �.i .1,,'C
'i!'�r`
:Type -
•.a ..Sam e
r't'n
gyp.
fir, L n .(,
ocatio
Flow
1.5 MGD
Continuous
Recording
I or E
BOD, 5-day, 20°C2
30.0 mg/I
45.0 mg/I
Weekly ✓
Composite
E. I
TSS2
30.0 mg/I
45.0 mg/i
Weekly
Composite
E, I
NH3-N
2/month
Composite
E
Temperature
Daily
Grab
E, U, D
Fecal Coliform
200/100 ml
400/100 ml
Weekly
Grab
E, U, D
Dissolved Oxygen3
Weekly
Grab
E, U, D
Conductivity
Weekly
Grab
U, D
Total Residual Chlorine
2/week
Grab
E
pH4
Weekly
Grab
E
Total Nitrogen (NO2 + NO3 + TKN)
Quarterly
Composite
E
Total Phosphorus
Quarterly
Composite
E
Cadmium4
5.4 ug/I
2/month
Composite
E
Leads
68.0 ug/I
2/month
Composite
E
Mercury5-6
0.03 ug/I
2/month
Composite
E
Arsenics
Monthly
Composite
E
Chlorides
Monthly ._
Composite
E
Coppers
Monthly --
Composite
E
Fluorides
Monthly
Composite
E
Seleniums
Monthly
Composite
E
Zinc5
Monthly r
Composite
E
Chronic Toxicity5.7
Quarterly ..-
Composite
E
Sample locations: E - Effluent, I - Influent, U - Upstream 100 feet, D - Downstream 50 feet upstream of Pacolet River. Instream monitoring shall be
grab samples taken 31wk (Jun -Sep) and 1/wk (Oct -May).
The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal).
The daily average effluent dissolved oxygen concentration shall not be less than 1.0 mg/I.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
Toxicant monitoring should coincide with toxicity monitoring.
The detection limit for mercury is 0.2 ug/l. If the measured levels of mercury are below the detection limit, then the measurement is considered to be zero
for purposes of compliance evaluation and should be reported on the DMR as < 0.2 ug/l.
Chronic Toxicity (Ceriodaphnia), P/F, 37%; March, June, September, and December; See Supplement to Effluent Limitations and Monitoring Requirements
- Special Condition A(2). Toxicant monitoring should coincide with toxicity monitoring.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
11,

Permit No. NCO021601
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A(2). CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised November 1995, or subsequent
versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant
mortality is 37 % (defined as treatment two in the procedure document). The permit holder shall perform
c ua�rterly monitoring using this procedure to establish compliance with the permit condition. The tests will be
performed during the months of March, June, September, and December. 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 will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DWQ Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
4401 Reedy Creek Road
Raleigh, North Carolina 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 there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating
the facility name, permit number, pipe number, county, and the month/year of the report with the notation of
"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences
Branch at the address cited above.
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 the permittee fail to monitor during a month in which toxicity monitoring is required, 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
Water Quality 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, minimum control organism reproduction, and appropriate environmental controls, shall
constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day
of the month following the month of the initial monitoring.

PACE 01
' . 02/ 12/ 1999 09: 45 14
TO: STATE ENGINEERING & REVIEW
PAX: 919-733-0719
ATTN : PAUL CLARK
FROM: FOR.REST WEST
AL
WAN]aA F'RAZIER
WATER QUALITY SECTION
ASHRVILLE REGIONAL OPPIC'E
DaATE : NOV'RMBER 13, 1998
NPDES STAFF REPORT MM 1 Eco ATION
(Regarding Permit Renewal and Facility Re -Rating)
PART Z - GENERAL INFORMATION
�., Facility name:
County:
Permit number:
Name:
Address:
Phone:
Fax:
'down of Tryon
Polk
KC0021901
David Draughn, Town Manager
423 N.Trade Street; Tryon, NC 28782
828-859-6654 City Hall
$28-859-6653
PART 11 - Facility Rating
On November 6, 1998 the Town -of Tryon requested from the
Regional office, permission Co disable and/or remove from service
treatment units that were out of service and, not needed.
On November 10, .1998, 1 performers an on -sate inspection to
determine what effect this will have on their rating.
According to the site visit and changes in the rating sheet
regarding land application, the following reclassify the WWTri
from a 0,IA98 .IV tQ A Glass XX.
* The sludge drying beds are not being used since sludge
is land applied. The beds have been dug onto and are not
capable of being used at this time. Gravity sludge d_ryi.ng
beds are rated as 2 points. The Town has elected to keep
the beds as they are in the.event they are needed in the
future.

02/ 12/ 1999 09: 45 4
PAGE 02
Page z
* The sludge concentrator, polymer feed system and sludge
belt press have not been used since 1991. The influent
lire to the belt press and the polymer feed system have been
capped, off and rendered inoperable. The belt press is rated
as 10 pointe. The polymer feed system is rated as 5 points.
The polymer feed system used to assist in clarifier
settling has not been used in several years. (No records of
an A to C were ever found.) The polymer feed lines were
capped off and the (Nalco) feed pump was dieconnected, from
the power source, taken off'line and discarded. The
polymer feed tank will be removed from site and taken . to
the Town's garage to be used for liquid waste storage,
* The ultraviolet disinfection unit has not been used in
several years. The power was disconnected and the trays
(racks that hold the tubes) have been removed. Ultraviolet
disinfection is rated as 5 paints.
* Several years ago when -the Certification Commission
required a separate certification for land application
operators (1994), the rating sheet was changed (1993). The
old rating for the Town' s WWTP included 10 points for land
application. This 10 points'has now been removed.
PART III - RECOMMENDATION
Based on removal of the above treatment units and rating
points, the attached rating sheet reflects a new rating of 48
points. The Town currently land,•applies their own residuals,
however they are currently working with EwR to get additional
land application sites permitted. The Town may contract the land
application in the future, ,which would make the rating 50 points.
This re -rates the facility from a Class sv to a Class 11
(see attached). The draft permit should, be modified to reflect
such.
The supplement page should also be amended to delete any
reference to dechlorination, since they don't dechlorinate (my
mistake ... sorry).

Tryon WVVI-P
NCO021601
Qeff=1.5MGD
Residual Chlorine
Ammonia as NH3
(summer)
7Q10 (CFS)
4
7Q10 (CFS)
DESIGN FLOW (MGD)
1.5
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
2.325
DESIGN FLOW (CFS)
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
UPS BACKGROUND LEVEL (U
0
UPS BACKGROUND LEVEL
IWC (%)
36.76
IWC (%)
Allowable Concentration (ug/
46.25
Allowable Concentration (m
TRC monitoring only - add limit upon expansion
Ammonia as NH3
(winter)
Fecal Limit 200 mgll
Dilution=7Q10S/DESIGN FLOW
Dilution= 1.7
Dilution < 331, limits already
in permit - DO NOT REMOVE
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL
IWC (%)
Allowable Concentration (m
4
1.5
2.325
1.0
0.22
36.76
2.34
5
1.5
2.325
1.8
0.22
31.74
5.20
C�
�i4 �`'ti-10/13198

NCO021601 Summary
October 13,1998
Tryon has applied for renewal of their discharge permit that includes discharge of 1.5 MGD from
the WWTP and an unquantified discharge from the Tryon WTP. The WWTP discharges into
Vaughn Creek (001) and the WTP discharges into an unnamed tributary to the Pacolet River
(002). Vaughn Creek flows into the Pacolet River. Both watercourses are Class C and are in
Broad River Basin.
This permit renewal will separate the discharges of the WWTP and WTP so that each is
permitted in its own permit. The WWTP will be permitted under NCO021601 and the
WTP will be permitted under NC0086525.
Industry discharging to WWTP:
Carolina Yarn Procesors, Inc.(SIU): product — cotton, polyester yarn, flow - 356000 GPD, wwc -
BOD, TSS, Cd, Cr, Cu, Hg, Ni, Pb, and Zn.
SIU: Significant Industrial User (Only the SIU dischargers have pretreatment permits).
Tote classified as a SIU, an industry must meet one or more of the following conditions:
1) Flow to POTW > 25,000 GPD
2) Flow to POTW > 5% of POTW's Maximum Allowable Headworks Loading (MAHL)
3) Industry is a classified Categorical Industry (CI)
4) Other - an industry may not meet nos. 1-3 listed above, but if there is a concern that the
industry may adversely impact the POTW, it can be classified as a SIU.
History
- Tryon working to reduce mercury in effluent, the American Canoe Association action
convinced Tryon to apply for SOC and expedite the mercury removal process.
- 10/1/96: American Canoe Association files civil action
- 12/16/96: Tryon applies for SOC
- 1/22/97: ESB reports that fish collected from three stations along the North Pacolet River
drainage near Tryon did not show mercury concentrations above "background levels" expected
for fish across North Carolina.
- 4/15/97: Technical Assistance report identifies some potential solutions to mercury reduction.
- 5/22/97: Compliance inspection conducted by W. Frazier indicates facility is operating well
except for mercury problems.
- 12/4/97: Dixie Yarns dropped as SIU (ceased to discharge to Tryon??)
Tryon continues to work on mercury reduction and is currently meeting SOC conditions.
Compliance Summary
Compliance data was evaluated for the period January 1996-June 1998. The facility was
generally in compliance for this period except for mercury.
The facility's toxicity testing record was evaluated from January 1994 to June 1998. The facility
failed the toxicity test in 3/94, 6/95, and 3/97. In two of those three instances, the toxicity test
was passed the following month.
Effluent (001) demonstrated the following ranges during the period evaluated:
TRC: <200-1500 ug/l (usually <1000)
BOD: 2 — 23 mg/l monthly average never greater than 5.0 mg/1)
NH3N: <0.1-7.2 mg/l (monthly average never greater than 5.2 mg/1)
TSS: 1-46.0 mg/l (monthly average never greater than 10.1 mg/1)
Instream monitoring data were examined from January 1996 through June 1998. In the vicinity
of outfal1001, dissolved oxygen (DO) concentrations changed very little from the up- to
downstream locations. DO values never dropped below 6.0 mg/l. TSS values generally
increased slightly from the up- to downstream monitoring locations, while conductivity increased
significantly. The discharge does not appear to be having an adverse impact on the receiving
stream.
Page 1 '0
Versioni

4. .
NCO021601 Summary
October 13,1998
WLA Summary
11 92: WLA recommends that color monitoring will be requested by administrative letter (no
record of this letter in file). Color monitoring guidance in 11/92 WLA. ARO recommends
quarterly color monitoring to develop database. Quarterly color monitoring will not be added
to permit (per WQS policy — S. Tedder).
A reasonable potential analysis indicated that cadmium, lead, and mercury will be limited in the
proposed draft NPDES permit. Mercury is currently limited, but cadmium and lead are not.
Cadmium and lead limits will be added to the permit. Cadmium, chromium, copper, lead,
mercury, nickel, and zinc are all monitored in the LTMP (both the influent and effluent). The
reasonable potential analysis indicated that copper and zinc had both exceeded their action levels
and monitoring (but no limit) for these two parameters will be required. Chromium and nickel
are both monitored in the LTMP and have not been detected in either the influent or the effluent
since 1996. Monitoring will not be required for these two parameters in the proposed permit.
December 1991, arsenic was detected in a Priority Pollutant Analysis (PPA). Arsenic is
currently limited in the NPDES permit, but is not monitored in the LTMP. The reasonable
potential analysis indicated that arsenic does not have the potential to violate the water quality
standard and the arsenic limit will be eliminated in the proposed NPDES permit. The
NPDES permit application indicates that industry does not expect to discharge arsenic. Yet
arsenic was detected in the effluent in April 1997 (72 ug/1). Continue to monitor for arsenic.
The reasonable potential analysis indicated that selenium does not have the potential to violate
the water quality standard and the selenium limit will be eliminated in the proposed permit.
Monitoring for chloride and fluoride was instituted in previous permit because it appears they
were detected in a PPA. Chloride and fluoride are not monitored in the LTMP nor are they
expected to be discharged from the industry, but they have been detected in the effluent.
Continue to monitor for chloride and fluoride.
Page 2 of 2
Version981013

i
llity Name =
City of Tryon
arameter = Cadmium
NPDES # =
NCO021601
Standard = 2
pg/l
w (MGD) =
1.5
Qw (cfs) =
2.3208
_
Q10s (cfs)=
4
n
BDL=1/2DL
tual Data
RESULTS
!WC (%) =
36.76
980616
5
<10
Std Dev.
11.547005
980602
5
<10
Mean
10
FINAL RESULTS
980519
5
<10
C.V.
1.1547005
Cadmium
980505
5
<10
n=31
ax. Pred Cw
160.0
980421
5
<10
j
Ilowable Cw
5.4
980414
Mult Factoi
3.2
Chloride
980407
5
<10
Max. Value
50
pg/I
ax. Pred Cw
945.0
980404
Max. Pred
160
pg/l
Ilowable Cw
625698.9
980324
Allowable
5.4
pg/l
Copper
980317
5
<10
ax-. Pred Cw
242.0
980310
Ilowable Cw
19.0
980303
5
<10
-Lead
980227
10
10
ax. Pred Cw
1080.0
980226
30
30
Ilowable Cw
68.0
980225
5
<10
Arsenic
980217
5
<10
ax. Pred Cw
2.8
980210
Ilowable Cw
136.0
980203
5
<10
Mercury
980127
ax. Pred Cw
4.3
980120
5
<10
Ilowable Cw
0.0
980113
Fluoride
980106
5
<10
ax. Pred Cw
55.0
971230
Ilowable Cw
4896.8
971223
20
20
Zinc
971216
5
<10
ax. Pred Cw
880.0
971208
Ilowable Cw
136.0
971202
10
10
Selenium
971125
ax. Pred Cw
8.4
971118
5
<10
Ilowable Cw
13.6
971111
971104
5
<10
971028
971021
5
<10
971014
971007
5
<10
970930
970923
5
<10
970916
970909
5
<10
970902
970826
5
<10
970819
9708151
5
<10
970814
5
<10
970813
5
<10
970812
50
50
970805
970729
970721
40
40
970715
9707081
301
30

TO PERMIT COVER
County Sanitary
is hereby authorized to: \
1. Continue to operaU existing raw ii
and supernatant orm a sluge lagoon o a
Treatment PlarrMI004(Casard),
permit), and
✓J -'r'
2. Discharge from said treatment works at the
First Broad River (Class WS-IV waters) i7
No. NC0051918
0 � O
e ettling tank d discharge filter ackwash
ty lcoated at eveland County ter
ale, Clevel d County (See Part II of this
ation sp if
on the attached map i to the
Broad Ri Basin.
4C.

meter =
Chloride
Pi
rameter = Copper
andard =
r
230000
mg/l
tandard = 7
pg/l
n
DL=1I2D
ctual Dat
RESULTS
n
DL=1/2D
ctual Dat
ESULTS
980630
5
<10
Std Dev.
159.1948
980616
5
<10
Std Dev.
20.25
980623
337.5
337.5
Mean
394.4692
980602
20
20
Mean
29.19
980609
292.5
292.5
C.V.
0.403567
980519
40
40
C.V.
0.694
980602
250
250
n=53
980505
20
20!n=31
980529
497.2
497.2
980421
5
<10
980526
322.5
322.5
Mult Factc
1.4
980407
40
40
Mult Facto
2.2
980519
305.6
305.6
Max. Value
675
pg/l
980317
20
20
Max. Value
110
980512
367.5
367.5
Max. Pred
945
pg/I
980303
40
40
Max. Pred
C# 242
980505
277.5
277.5
Allowable
P625698.9
pg/l
980227
30
30
Allowable Q
19.0
980428
397.5
397.5
980226
30
30
980421
223
223
980225
30
30
980414
154.4
154.4
980217
20
20
980407
367.5
367.5
980210
980324
395
395
980203
30
30
980317
377.5
377.5
980127
980310
77.5
77.5
980120
20
20
980303
307.5
307.5
980113
980225
285
285
980106
30
30
980217
405
405
971230
980210
345
345
971223
30
30
980203
412.5
412.5
971216
40
40
980127
460
460
971208
980120
320
320
971202
30
30
980113
330
330
971125
980106
433.2
433.2
971118
50
50
971230
90
90
971111
971223
417.5
417.5
971104
40
40
971216
570
570
971028
971208
655
655
971021
60
60
971202
290
290
971014
971125
642.5
642.5
971007
20
20
971118
563.5
563.5
970930
971111
530
530
970923
5
<10
971104
545
545
970916
971028
205
205
970909
5
<10
971021
617.5
617.5
970902
971014
470
470
970826
30
30
971007
547.5
547.5
970819
970930
302.5
302.5
970815
20
20
970923
522.5
522.5
970814
20
20
970916
430
430
970813
20
20
970909
455
455
970812
40j
40
970902
362.5
362.5
970826
670
670
970729
970819
675
675
970721
5
<10
970812
595
595
970715
970805
535
535
970708
110
110
970729
499.4
499.4
i
970721
392
392
970715
585
585
970708
89.11
89.1
970701
310
310

r•
The pH shall not be less the 6.0 standard units nor greater t an 9§.0 7an
Nard units and shall be monitored weekly at the effluent by grab samples.
There shall be no discharge of floating solids or visible foam in trace amounts.

rameter =
Lead
tandard =
25 Ng/l
nj
DL=1/2DL.tual
Data
RESULTS
9806161
50
<10
Std Dev.
101.5
980602
200
200
Mean
74.19
980519
50
<10
C.V.
1.369
980505
50
<10
n=31
980421
100
100
980407
50
<10
Wit Factor
1.8
980404
Max. Value
600
Ng/
980324
Max. Pred
1080
Ng/
980317
50
<10
Allowable C
68.0
Ng/
980310
980303
50
<10
980227
50
<10
980226
50
<10
980225
50
<10
980217
50
<10
980210
980203
50
<10
980127
980120
50
<10
980113
980106
50
<10
971230
971223
50
<10
971216
50
<10
971208
971202
50
<10
971125
971118
50
<10
971111
971104
50
<10
971028
971021
50
<10
971014
971007
50
<10
970930
970923
50
<10
970916
970909
50
<10
970902
970826
50
<10
970819
970815
50
<10
970814
50
<10
970813
50
<10
970812
50
<10
970805
970729
970721
600
600
970715
9707081
501
<100

ROX,6ro
Ile VWVfP
1 � .
Effluent Data
Month
BOD-Inl'BOD-EfFBOD
jAct F!
Act Flo
ainfall
Ill Flow
(mg/1)
(mg/1)
%REM
(MGD)
Permit IT,
(inches)>
2.6 MG
9805
2.22
44.40
NO
9804
2.9
58.00
YES
9803
3.29
65.80
YES
9802
3.32
66.40
YES
9801
0.00
9712
0.00
9711
2.28
45.60
NO
9710
2.96
59.20
YES
9709
3.55
71.00
YES
9708
3.38
67.60
YES
9707
2.7
54.00
YES
9706
2.62
52.40
YES
9705
2.65
53.00
YES
9704
3.12
62.40
YES
9703
3.4
68.00
YES
9702
3.52
70.40
YES
9701
3.15
63.00
YES
9612
2.58
51.60
NO
9611
2.1
42.00
NO
9610
3
60.00
YES
9609
2.69
53.80
YES
9608
2.78
55.60
YES
9607
2.54
50.80
NO
9606
2.52
50.40
1.64
NO
9605
2.84
56.80
YES
9604
3.01
60.20
YES
9603
2.96
59.20
YES
9602
3.28
65.60
YES
96011
1
1
3.51
1
IYES
- � '� S (� � N �t/�'1�i~�Y . lG/� l V � vK� t -L- : •Jt� L L��,,., �4 . (��
Page 1

LRE
W1,1007-:1
On
I.; •n
Standard
1
•
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•
• .
.'
_.
• •ctual
• _
_'
_.
•:1�1
1
11
•
®M
•:!`
`1
�1
•
®�
• : 1
1
1 1
- - -
IMM
• : 1
- _ -
• i 1
gin:
_.
1
_■
• 1
1
11
_.
• •
�1
�1
_■
•
1
11
_.
� 1
�1
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_■
• 1 1
1
1 1
_■
� 1
1�
_■
1.1
_.
� 1' '
_■
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_.
!•1
_■

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Thomas Lindley
M.M. Fowler, Inc.
4220 Neal Road
Durham, North Carolina 27705
Dear Mr. Lindley:
D E N R
July 6, 1998
Subject: Issuance of Gen. Permit No. NCG510000
Cert. of Coverage NCG510404
Knightdale BP Station
Wake County
In accordance with your application for a discharge permit received on February 23, 1998 by the
Division, we are forwarding herewith the subject Certificate of Coverage (COC) to discharge under the subject
state - NPDES general permit for petroleum contaminated groundwater remediation systems and one set of
final approved plans and specifications. Authorization is hereby granted for the continued operation of a
groundwater remediation system (consisting of five recovery wells, a 160 gallon (10 gpm) oil/water separator,
a three-tier air stripper (10 gpm) with 165 cfm blower, two carbon filters in series (100 lbs. each), and all
associated piping and appurtenances) with discharge of treated wastewater into an unnamed tributary to Beaver
Dam Creek (Class C NSW) in the Neuse River Basin. This COC 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 and as subsequently amended.
This COC is issued under a revised general permit for discharges associated with groundwater
remediation systems (NCG510000 issued August 22, 1996). The new general permit is more comprehensive
than the original general permit in that it covers remediation of groundwater contaminated with heavier fuels
(such as diesel, fuel oil, and kerosene) as well as gasoline contamination.
The application identifies gasoline and kerosene as the sources of groundwater contamination.
Groundwater analytical data support this identification. Thus, effluent page A. (3) applies to your facility and
lists required effluent limitations and monitoring frequencies.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to request an individual permit by submitting an individual permit
application. Unless such demand is made, this certificate of coverage shall be final and binding.
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

rameter =
Arsenic
Parameter =
Mercury
P
tandard =
50
Ng/l
Standard =
0.012
Ng/l
n
DL=1/2DL.tual
Data
RESULTS
n
DL=1/2DL.tual
Data
RESULTS
980630
2.5
<5
Std Dev.
0
980630
0.1
<0.2
Std Dev.
0.285
980623
2.5
<5
Mean
2.5
1
980623
0.1
<0.2
Mean
0.209
980616
2.5
<5
C.V.
0
980616
0.1
<0.2
C.V.
1.365
980609
2.5
<5
n=59
980609
0.1
<0.2
n=59
980602
2.5
<5
980602
0.1
<0.2
980529
2.5
<5
Mult Facto
1.1
980529
0.1
<0.2
Mult Factor
2.5
980526
2.5
<5
Max. Value
2.5
pg/I
980526
0.1
<0.2
Max. Value
1.7
Ng/
980519
2.5
<5
Max. Pred
2.8
Ng/I
980519
0.1
<0.2
Max. Pred
CO 4.25
Ng/
980512
2.5
<5
Allowable C
136.0
Ng/I
980512
0.1
<0.2
Allowable C
0.03
Ng/
980505
2.5
<5
980505
0.4
0.4
980428
2.5
<5
980428
0.1
<0.2
980421
2.5
<5
980421
0.1
<0.2
980414
2.5
<5
980414
0.1
<0.2
980407
2.5
<5
980407
0.1
<0.2
980404
2.5
<5
980404
0.1
<0.2
980324
2.5
<5
980324
0.1
<0.2
980317
2.5
<5
980317
0.1
<0.2
i
980310
2.5
<5
980310
0.54
0.54
i
�
980303
2.5
<5
980303
0.1
<0.2
980227
2.5
<5
980227
0.1
<0.2
980226
2.5
< 5
980226
0 .1
< 0 .2
980225
2.5
<5
980225
0.1
<0.2
l
980217
2.5
<5
980217
0.1
<0.2
N N N N M C
0 0 6 6 o c
980210
2.5
<5
980210
0.1
<0.2
980203
2.5
<5
980203
0.1
<0.2
980127
2.5
<5
980127
0.1
<0.2
980120
2.5
<5
980120
0.76
0.76
N CO C%
0 0 0
980113
2.5
<5
980113
0.1
<0.2
0 o c
980106
2.5
<5
980106
0.1
<0.2
971230
2.5
<5
971230
0.1
<0.2
v-0NNU" C
CO CO ^ � h
971223
2.5
<5
971223
0.1
<0.2
971216
2.5
<5
971216
0.1
<0.2
n
00000C
rn rn 0
971208
2.5
<5
971208
0.1
<0.2
rn rn rn
971202
2.5
<5
971202
0.1
<0.2
971125
2.5
<5
971125
0.1
<0.2
971118
2.5
<5
971118
0.1
<0.2
971111
2.5
<5
971111
0.1
<0.2
971104
2.5
<5
971104
0.1
<0.2
971028
2.5
<5
971028
0.1
<0.2
f
971021
2.5
<5
971021
0.1
<0.2
971014
2.5
<5
971014
0.1
<0.2
971007
2.5
<5
971007
0.1
<0.2
v v v v v v
970930
2.5
<5
970930
0.1
<0.2
970923
2.5
<5
970923
1.1
1.1
970916
2.5
<5
970916
1.7
1.7
970909
2.5
<5
970909
0.74
0.74
UnLOoLauo
nj ni -)
970902
2.5
<5
970902
0.1
<0.2
970826
2.5
<5
970826
0.43
0.43
970819
2.5
<5
970819
0.1
<0.2
N Lp rn a CO
T" o N N �- o
CO oo
970815
2.5
<5
970815
0.1
<0.2
970814
2.5
<5
970814
0.1
<0.2
0 0 0 0 0�
rn rn rn rn
970813
2.5
<5
970813
0.1
<0.2
CO
0
CO
v
0
T-
0
0
rn
LO
v

SUPPLEMENT TO PERMIT COVER SHEET
White Oak Manor - Rutherfordton
is hereby authorized to:
Permit No. NCO030139
1. Continue to operate a 0.015 MGD extended aeration wastewater treatment facility with surge
tank and aerated sludge digester located at White Oak Manor — Rutherfordton, West of
US64/NCSR 1523 intersection, Rutherford County (See Part III of this permit), and
2. Discharge from said treatment works at the location specified on the attached map into an
unnamed tributary to Catheys Creek (Class WS-IV waters) in the Broad River Basin.

rameter =
Selenium
tandard =
51
Ng/l
1
1
n
DL=1/2DL.ctual
Dat
ESULTS
_
980630
2.5
<5
Std Dev.
0.596
980623
2.5
<5
Mean
2.579
980616
2.5
<5
C.V.
0.231
980609
2.5
<5
n=57
'
980602
2.5
<5
980529
2.5
<5
Wit Factor
1.2
980526
2.5
<5
Max. Value
7
Ng/
980519
2.5
<5
Max. Pred
8.4
Ng/
980512
2.5
<5
Allowable C
13.6
Ng/
980505
2.5
<5
980428
2.5
<5
980421
2.5
<5
980414
2.5
<5
980407
2.5
<5
980404
2.5
<5
980324
2.5
<5
980317
2.5
<5
980310
2.5
<5
980303
2.5
<5
980227
980226
980225
2.5
<5
980217
2.5
<5
980210
2.5
<5
980203
2.5
<5
980127
2.5
<5
980120
2.5
<5
980113
2.5
<5
I
980106
2.5
<5
971230
2.5
<5
971223
2.5
<5
971216
2.5
<5
971209
7
7
971202
2.5
<5
971125
2.5
<5
971118
2.5
<5
971111
2.5
<5
971104
2.5
<5
971028
2.5
<5
971021
2.5
<5
971014
2.5
<5
971007
2.5
<5
970930
2.5
<5
970923
2.5
<5
970916
2-.5
<5
970909
2.5
<5
970902
2.5
<5
970826
2.5
<5
970819
2.5
<5
970815
2.5
<5
970814
2.5
<5
970813
2.51
<5
i
v
v
v
v
v
v
v
LqLOLOtoLOaa
N
N
N
N
N
(V
N
0
0
0
0
0
0
0
a�
rn
a�
a�
rn
rn
rn

Mr. Lindley
July 6, 1998
Page 2
Please take notice that this COC is not transferable except after notice to the Division of Water Quality.
The Division of Water Quality may require modification or revocation and reissuance of the COC.
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Water Quality or permits required by the Division of Land Resources, the Division of Coastal
Management, or any other Federal or Local governmental permit that may be required.
Any sludge generated from this treatment facility must be disposed of in accordance with G.S. 143-
215.1 and in a manner approved by the North Carolina Division of Water Quality.
In the event that the facility fails to perform satisfactorily, including the creation of nuisance conditions,
the Permittee shall take immediate corrective action, including those as may be required by this Division, such
as the construction of additional or replacement wastewater treatment or disposal facilities.
The Raleigh Regional Office, telephone number [phone], shall be notified at least forty-eight
(48) hours prior to the system beginning to discharge to the creek so that an in -place inspection can be made.
Such notification to the regional supervisor shall be made during the normal office hours from 8:00 a.m. until
5:00 p.m. on Monday through Friday, excluding State Holidays.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the life
of the facility and one (1) set of approved plans and specifications is being forwarded to you.
If you have any questions or need additional information, please contact Paul Clark at telephone
number [phone], extension 580.
Sincerely,
A. Preston Howard, Jr., P. E.
cc: Central Files
Raleigh Regional Office, Water Quality Section
NPDES Unit
Point Source Compliance Enforcement Unit
James Dodson, EMS Environmental, Inc.
117 South Hoover Road
Durham, NC 27703

LONG TERM MONITORING PLAN REQUEST FORM (for Pretreatment)
FACILITY: Tryon WWTP
INPDES NO.: NCO021601
(EXPIRATION DATE: 12/31 /98
IREGION: Asheville
IP&E REQUESTOR: Paul Clark
1PRETREATMENT CONTACT: Greg Newman
(DATE OF REQUEST: 7/29/98
IINDICATE THE STATUS OF PRETREATMENT PROGRAM:
1) THE FACILITY HAS NO SIU'S AND SHOULD NOT HAVE PRETREATMENT LAND
G)HE FACILITY HAS OR IS DEVELOPING A PREATREATMENT PROGRAM. I
3) ADDITIONAL CONDITIONS REGARDING THE PRETREATMENT PROGRAM E
PERMITTED FLOW: 1.5 MGD
% INDUSTRIAL 37
% DOMESTIC 63
Industrial/domestic breakdown from 11 /92 WLA

JUL-30-98 THU 11:38 AEI TOWN OF TRYON FAX NO. 828 859 3653
Phone i +1 t) �� ; i15 `? - 6 6 5 4
'Fax [phone]
]FAX fR_�.N;,%I i i l i l sli t.r. r
Date: -.
Fax Number:
'dotal Pages: wftiF-
oFFicF- of THE
TOWN MANAGER

Cbapta
Long Term Monitoring Plan Guidance
N
.. ' Appendix 4-R. Example LTMP Summary Dste Pnrm
u
co
Below Detection Limit Data (BDL) should be marked as "< and the deteclion limit", i.e. <U-WL.
FLOW- POLLUTAN T- POLLUTAN3T= F'OLLUFANT= pOLLUTA NT= POLLUTANT=
7
B
9
$'I
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F-
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AVERAGE _
MAXIMUM =
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BDL DATA USED FOR AVERAGES ARE EST[MATEDTO BE: (i.e. U, 112 UETECTION LIMIT, THE DETECTION LIMY ).
F-------------
o Chapter 4
`i' Chapter Lli+t?Gnaana4,13
Append'a
LTM? data swn rage k
R,isirm tht, September 1, 1993

Long Tam Moantoaing Plan Guidance
Appendix 4-B. Fxnmglc LTMPSummary Data ioml
u DQ should be marked as < and the detection Iim" it, i.e. <0.002.
Beloww Detection limit Data (B
a
m �� AHT'= ppLLUTANI'= POLLUTAT
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--a Fi{cnamc: LIMP dab sum
Revisit, Date: ScVcmkT t, 199-1
AVERAGES ARE ESTIMATED TO BE: (i.a Q U2 DETECTION LIMIT,THE
POLLUrA)T= I Piu_.U,] ALII -
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Cbspter. LTMP Gildilace Ctaptrr d
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131 44
15'
16
17
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Chapter. LIMP Gui3an�
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POLLUTANT POLL AXr. s
FLOW n POLLUTANT = i*QLj.(J`'ANT= POLL ANT = POLLUTANT = P011.l�TANT = PQI.LI!'rA19T =
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Bi L DATA USED FAR AVERAGES ARE ESTIMATED TO BE: (i.e. 0, 112 DETEC.'nUN LIM 11. t rxz L J A &&% ,.,. - ----- -
Chapter: LTCMP Gdd"Dc
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Revisit Dates September 1,1993
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page

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L..g Term Monitoring Plan Guidance
m
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LL
Data (BDL) ShOuld be Tnarkea as "� and the detection limn", i.e. •
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RcvWc m Datr. Septeml*t l .1993 Page I

SOC priority:
_x_yes no
TO: STATE ENGINEERING & REVIEW GROUP
FAX: [phone]
ATTN: PAUL CLARK
FROM: WATER QUALITY SECTION
ASHEVILLE REGIONAL OFFICE
WANDA P. FRAZIER
DATE: JULY 13, 1998
NPDES STAFF REPORT AND RECOMMENDATION
PART I - GENERAL INFORMATION
1. Facility name:
County:
Permit number:
Name:
Address:
Phone:
Fax:
Town of Tryon
Polk
NCO021601
David Draughn
Drawer K; Tryon, NC 28782
828-859-6654
828-859-6653
2. Date of Inspection: May 21 and 26, 1998
3. Inspector/Report Prepared By: Wanda Frazier
4. Persons Contacted: Clarence Henson, Public Works Director
Joel Burrell, Plant Foreman
Telephone Number: 828-859-5626 Q WWTP
5. Directions to Site: The facility is located at the end of
NCSR 1504, east of Tryon, NC
6. Discharge Point(s), List for all discharge points:
Wastewater Treatment Plant 001 discharges into Vaughn Creek
Q Latitude: 350 12' 47" Longitude: 820 13' 17"
Water Plant Backwash Lagoon 002 discharges into an unnamed
tributary to the Pacolet River.
See page 6 for a USGS map extract, indicating the facility
site and discharge point(s) on the map using:
USGS Quad No.: G10 NW USGS Quad Name: Landrum, SC
7. Site size & land available for expansion and upgrading:
Several acres
8. Topography and relationship to flood plain:
Flat; not in, but adjacent to flood plain
9. Location of nearest dwelling: 1100 feet
-1-

..
10. Receiving stream or affected surface waters: Vaughn Creek
a. Classification: C
b. River Basin: Broad 03-08-06
Subbasin No.: 03-08-06
C. Describe receiving stream features and pertinent
downstream uses: Provides for the propagation and
maintenance of wildlife
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. What is the volume of wastewater to be permitted -
Ultimate Design Capacity? 1.5 MGD
b. What is the current permitted capacity of the
Wastewater Treatment facility? 1.5 MGD
C. What is the actual treatment capacity of the current
facility - current design capacity? 1.5 MGD
d. What is/are the date(s) and construction activities
allowed by previous Authorizations to Construct issued
in the previous two years?
None (last two A to Cs were in 1987 and 1991)
e. Provide a description of existing or substantially
constructed wastewater treatment facilities.
An A to C was issued October 22, 1987 for the
construction and modifications and additions to expand
the existing 0.8 MGD activated sludge wastewater
treatment plant to a 1.5 MGD extended aeration waste-
water treatment plant (the original A to C incorrectly
listed the flow as 1.294 MGD) consisting of:
* a new mechanical bar screen and bypass manual bar
screen
* an aerated grit unit
* a Parshall flume for flow monitoring
* modifications to the existing aeration basin to
consist of replacement of the existing fixed
aerators with two 25 HP floating aerators and one
15 HP mixer
* a new aeration basin
* a new secondary clarifier
* ultraviolet light disinfection system
* modifications to the existing sludge pump station/
control building to consist of: new dual 995 gpm
non- clog vertical return sludge pumps and one 130
gpm non -clog vertical return sludge feed pump and
dual submersible scum pumps
* a sludge dewatering system to consist of a 1.0
meter belt filter sludge press with a liquid
-2-

J.
1.
emulsion type polymer feed system, one sludge
press wastewater pump and a sludge dewatering
building.
* conversion of the existing sludge holding tank to
an aerobic digester with a new 15 HP floating
aerator, a new concrete -lined sludge holding basin
with a 15 HP mixer and a 400 gpm submersible
digester sludge pump
* in -plant flow metering and sampling
* lab and office building
* associated yard piping, electrical work, site work
and appurtenances
In 1991 an A to C was issued for upgrading the disin-
fection system. Chlorine disinfection and sulfur
dioxide dechlorination was installed and is currently
utilized.
f. Provide a description of proposed wastewater treatment
facilities. See comments in section 3.
g. What are the possible toxic impacts to surface waters?
Possibly compounds associated with textile wastes and
chlorine as a result of effluent chlorination (dechlor-
ination is used). The Town is currently under an SOC
for effluent mercury violations.
h. Is there a pretreatment program (POTWs only)?
in development x approved & modified
should be required not needed
2. Residuals handling and utilization/disposal scheme:
Wasted sludge is aerobically digested and then land applied.
a. Land application permit number: WQ0004341
Residuals Contractor: n/a
Telephone Number: 828-859-5626 @ WWTP
b. Residuals stabilization: _x_PSRP PFRP OTHER
C. Landfill: none
d. Other disposal/utilization scheme: none
3. Treatment plant classification:
The WWTP is currently a class IV. See pages 7 & 8 for a
completed rating sheet with changes that reflect a new
rating to a class III. See page 9 for WWTP schematic.
According to recent site visits and changes in the
rating sheet regarding land application, the following
actions are recommended in an effort to reclassify
the WWTP from a Class IV to a Class III.
-3-

* The sludge drying beds are not being used since sludge
is land applied. The beds have been dug onto and are
not capable of being used at this time. Gravity sludge
drying beds are rated as 2 points. To remove them from
service, the drainage pipe that leads to the wet well
needs to be capped off and the beds need to be removed
completely.
* The sludge concentrator, polymer feed system and sludge
belt press have not been used since 1991. The influent
line to the belt press and the polymer feed system
needs to be capped off and the power disconnected. To
take this unit out of service, it needs to be rendered
inoperable. The belt press is rated as 10 points. The
polymer feed system is rated as 5 points.
* The polymer feed system used to assist in clarifier
settling has not been used in several years. Even
though no records of an A to C have been found, the
polymer feed line needs to be capped off and the
(Nalco) feed pump needs to be disconnected from the
power source and taken off line. The polymer chemical
feed system is rated as 5 points.
* The ultraviolet disinfection unit has not been used in
several years. The power should be disconnected and
the trays (racks that hold the tubes) need to be
removed. Ultraviolet disinfection/radiation is rated
as 5 points.
* Several years ago when the Certification Commission
(those who rate/classify facilities and certify
operators) required a separate certification for land
application operators (1994), the rating sheet was
changed (1993). The old rating for the Town's WWTP
included 10 points for land application. This 10
points has now been removed.
If all of the above units could be taken off line and
disabled, the current rating sheet would reflect a removal
of 27 points (or a total of 37 points removed with the new
land application rating), which would reclassify the
facility from a Class IV to a Class III. The 1998 proposed
rating sheet changes based on flow would also rate this
facility as Class III.
The new permit would also reflect a change in monitoring
from daily to three times per week for several parameters.
If and when the Town makes the above changes the regional
office will inform the permitting staff so that an
appropriate permit renewal can be processed (expires
December 31, 1998).
4. SIC Codes (s) :
001 discharge
002 discharge
4952 (domestic)
4941 (water plant backwash)
-4-

Wastewater Codes:
001 discharge:
002 discharge:
01 primary
55 secondary
21 primary
Main Treatment Unit Code:
001 discharge: 050-3
002 discharge 50
PART III - OTHER PERTINENT INFORMATION
1. Is this facility (municipals only) being constructed with
Construction Grant Funds or are any public monies involved?
not applicable
2. Special monitoring or limitations (including toxicity)
requests:
The ARO requests that the Town begin monitoring for color
quarterly at the effluent to establish a database.
3. Important SOC, JOC, or Compliance Schedule dates:
See pages 10 & 11 for the SOC schedule and Plan of Action.
We are currently working with the Town to change the Plan of
Action due to concerns expressed by the Pretreatment Group.
4. Alternative Analysis Evaluation:
Has the facility evaluated all of the non -discharge options
available? not practical/applicable
5. Other Special Items: none
PART IV - EVALUATION AND RECOMMENDATIONS
The Asheville Regional Office recommends the renewal of NPDES
Permit #NC0021601.
r
ig ature of Report Prepa r
Water Quality Regional Supervisor
13 QZA-4' 99Y
-5-

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: JAD
Owner or Contact Person: ' Aion
Mailing Address: N C a8 9 �
County: o 1K Telephone: [phone]—1601605411"
Present Classification: -Tr— New Facility Existing Facility ✓
NPDES Per. No. NC0091(.0) Nondisc. Per. No.WO Health Dept.Per No.
Rated by: Z.ia.,J,d&.x 4#-awer Telephone: ?5/-6X)9 Date: / a/ '8
Reviewed by: �1 Health Dept. Telephone:
u J,,"AgLe Regional Office Telephone:
Central Office Telephone:
ORC: Rnnnle Plex 71teu Burrell Grade: � Telephone:
Check Class ification(s): Subsurface Spray Irrigation Land Application
Wastewater Classification: (Circle One) 1 it III IV Total Points:_
The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
ITEM
POINTS
(1)
Industrial Pretreatment Units or Industrial Pretreatment Program (sae definition No. 33).................................................0
(2)
DESIGN FLOW OF PLANT IN MA [not applicable to con -contaminated cooing waters, sludge handling Ixild se for
water purification plants, totally dosed cycle systems(see definition No. 11), and facilities consisting only of item
(4)(d) or Items (4)(d) and (11)(d))
0 - 20,000................................................................................................................................................1
20,001 - 50.000......................................................................................................................................2
50,001 - 100.000....................................................................................................................................3
100.001 - 250.000...................................................................................................................................4
250.001 - 500.000.............................................................................._..................................................5
500,001 - 1,000.000............................................... ........................................... ....................................
1.000.001 - 2.000.000.........................................................................................................................1O
2.000.001 (arid up) rate 1 Point additional for each 200.000 gpd capacity up to a maximum of ........
Design Flow (gpd)
(3)
PRELIMINARY INITSrPROCESSES(ase definition No32)
(a) BarScteans...............................................................................................................................................1
or
(b) Mechanical Screens, Static Screens or Comminuting Devices ............................................ ...._._...._........��
(c) Grit Removal..............................................................................................................................................
or
(d) Mecharecal or Aerated Grit Removal..........................................................................................................©
(0) Flow Measuring Device................................................................................................................................1
or
(I) Instrumented Flow Measurement.............................................................................................................�
(g) Preaeratlon...............................................................................................................................................2
(h) Influent Flow Equalization..........................................................................................................................2
(I) Grease or Oil Separators - Gravity ........... _......... _...................................................................................._...2
Mechanical................................................................................................................................................3
DissolvedAir Flotation................................................................................................................................a
IIIPrechturination.........................................................................................................................................5
(4)
PRIMARYTREATMENT tNITWPOCESSES
(a) Septic Tank (sae definition No. 43)..... ..... .................. _.............................................................................
2
(b) Imhoff Tank.............................................................................................................................................5
(c) Primary Clari ers.........................................................................................................................................5
(d) Seming Ponds or Settling Tanks for Inorganic Nontoxic Materials (sludge handling facilities lot water
purification plarxs, sand, gravel, stow. and other mining operations except recreational activities such
as gem
orgold mining)........................................................................................................................................2
(5)
SECONDARYTREATMENT1.14WHOCFSSES
(a) Carbonaceous Stage
(I) Aeration -High Purity Oxygen System .......... _...................... _...................... _..................
20
DiffusedAir System.......................................................................................................
Mechanical Air System (fixed, floating or rotor)_
.................. _............ ._.............
SeparateSludge Reaendlon............................................................................................
.... ....
(11) Trickling Fitter
HighRate.......................................................................................................................7
StandardRate...............................................................................................................5
PackedTower................................................................................................................5
(III) Biological Aerated Fiber or Aerated Biological Filter_..........................................................1
0
(Iv) Aerated Lagoons..........................................................................................................t
o
(v) Rotating Biological Comadona......................................................................................10
(A) Sand Filters -Intermittent biological..................................................................................2
Recirculatingbiological....................................................................................................3
(vlll Stabilization Lagoons....................................................................................................5
(vill) clarMer........................................................................................................................
(ix) Single stage system for combined carbonaceous removal of BOD and nitrogenous removal
y
nitrification (see definition No. 12)(Points for INs hem have to be In addition to hems
(5)(a)(1) through (5)(a)(vill),
• utilizing the extended aeration process (see definition No.3a)..........................................2
utilizing other than the extended aeration process............................................................a
(x ) Nutrient additions to enhance BOO removal......................................................................5
(XI) Biological Culture (Super Bugs')addhion........................................................................5

(b)
Nitrogenous Stage
(1) Aeration - High Purhy Oxygen System .........................
.......... ,................. _..................... 0
Diffused Air System.......................................................................................................10
Mechanical Air System (fixed, floating or rotor) ....................
_... _... _..................................
Separate Sludge Reiteration............................................................................................3
(II) Trickling Fllter-High Rate ... _............................................................
_................................ 7
Standard Rate...............................................................................................................5
PackedTower................................................................................................................5
(III) Biological Aerated Flher or Aerated Biological Fiter.........................
_.................................. 10
(iv) Rotating Biological Contactors ......................................................................................10
(v) Sand Filter . Intermldent biological..................................................................................2
Recirculating biological....................................................................................................3
(VI) Cb ifar........................................................... ........................................
:........5
(6) TERTAWORADVANCEOTRFATMENTLt4nWFOCESSFS
_...........
(a)
Activated Carbon Beds -
wllhoutcarbon regeneration. ...................................................................................................
5
with Carbon regeneration.......................................................................................................15
(b)
Powdered or Granular Activated Carbon Feed -
without carbon regeneration.................................................................................................5
with carbon regeneration....................................................................................................16(c)
Air strinaim------_
(d)
(a)
(f)
(g)
(h)
(k)
Ion
Land
Callon of Treated Effluent (see definition
similar mining operations) by high rate
Phosphorous
Polishing Pc
(1) Post Aeration
Blologlcal Processes (See
sand, gravel. stone
................................... «......................
withaeration...._ ............... .... ..... ............................... ........................ ...... _..... .............
cascade..............................................................................................................................0
diffusedor mechanical......................................................................................................2
(m)
Reverse Osmosis.......................................................................................................................................5
(n)
Sand or Mixed -Media Filters - low rate..........................................................................................................2
highrate......................................................................5
(o)
Treatment processes for removal of metal or cyanide.............................................................................1.....15
(P)
treatment processes for removal of toxic materials other than metal or cyanide..............................................15
(7)
SLUDGETREATMENT
(a)
Sludge Digestion Tank - Heated (anaerobic) ............................................... ....................... ........
Aerobic...........................................................................................................................................
............... .tQ
Unheated(anaerobic)...............................................................................................................................3
(b)
Sludge Stabilization (chemical or thermal)....................................................................................................6
(c)
Sludge Drying Beds - Gravity......................................................................................................................2
VacuumAssisted......................................................................................................................................5
(d)
Sludge Elutdation.....................................................................................................................................5
(a)
Sludge Conditioner (chemical or thermal)....................................................................................................5
(f)
Sludge Thickener (gravity)..........................................................................................................................5
(g)
Dissolved Air Flotation Unit [not applicable to a unk rated as(3)(1)].............................................................a
(h)
Sludge Gas Utilization (Including gas storage).............................................................................................2
(1)
Sludge Holding Tank - Aerated.....f.1/.44......................................................................................................5
Non -aerated ................................. _..........................................................................................................
2
(J)
Sludge Incinerator (not Including activated Carbon regeneration)................................................................10
(k)
Vacuum Filter, Centrifuge, or Filter Press or other similar dewatering devices...................................................10
(8)
RESIDUALS LMLIZATIOWDISPOSAL(Induding Incinerated ash)
(a)
Lagoons...........................................................................................................................0......................2
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the land application permit
orlandlih permit ........................................................................................................................................2
(c
Dedicated Landfill(burial) by the permhtee of the wastewater treatment facility ............... ........... ...................
5
9
( )
(a)
Chlorination............................................................................................................................................
(b)
Dechlorination.......................................................................................................................................
.5
(c)
Ozone.......................................................................................................................................................6
(d)
Radiation.................................................................................................................................................5
(10)
CHEMICAL ADDITION SYSTEM(S) ( see definition No. 9) [rot applicable to chemical additions rated as Item (3)0).
(5)(a)(xl), (6)(a). (6)(b). (7)(b). (7)(s). Ica). (9)(b) or (9)(c) 5 points each:
Usi......................................................................................................................................5
.......................................................................................................................................5
.......................................................................................................................................5
............ ..........................................................................................................................5
(11)
MISCELLANEOUS UNITSIPROCESSES
(a)
Holding Ponds, Holding Tanks or Setting Ponds for Organic or Toxic Materials Including wastes from mining
operations containing nhrogen or phosphorus compounds In amounts significantly greater than is common
fordomestic wastewater ........... ................................................................................................................
A
(b)
Effluent Flow Equalization (not applicable to storage basins which are Inherent In land application systems).....2
(c)
(d)
Stage Discharge (not applicable to storage basins Inherent In land application systems)................._..............yry,
Pumps......................... ................................................................ ......................... .................................
(0)
Stand -By Power Supply............................................................................................................................3
-
M
Thermal Pollution Control Device................................................................................................................3
TOTALPOINTS ................................. .........................................
_
CLASSIFICATION
Class l.......................................................................................4................... 5.25 Points
q
ClassII........................................................................................................ 26-50 Points

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Town of Tryon
Special Order By Consent .
Plan of Action for Removal of Mercury
Date of Implementation: June 1, 1998
1. Eliminate all sources and contributors of
mercury.
The three contributors of mercury have been
identified as :
Dr. Hornbeck - dental office
Dr. McCall - dental office
Carolina Yarn Processors
Implement by:
A. Continue monitoring the contributors
for mercury.
on going
B. Impose a limit of < 0.2 ug/1 daily
maximum.
June 1, 1998
C. Establish a monetary penalty for
limit exceedances.
June 1, 1998
D. Begin assessing limit exceedances
to contributors.
July 1, 1998
2. Flush the sewer collection system,
Implement by:
beginning at the points of discharge of
July 1, 1998
each of the three contributors continuing
downstream to direct any sludge accumu-
lation in the lines, to be discharged to
the treatment plant.
Complete by:
Sept. 1, 1998
3. Purge the entire wastewater treatment
Implement by:
facility of mercury.
Sept. 1, 1998
A. Empty each of the aeration basins
and remove
the sludge.
B.
Empty
each of the clarifiers and -
remove
the
sludge.
C.
Empty
the
chlorine contact chamber.
D.
Empty
the
return/waste sludge wet
well.
E.
Empty
the
digester.
Complete
by:
Feb. 1, 1999
SOC Plan approved and submitted by: r1651�
Da Draughn, own Manager
Date

0
b
------------------- SOC SCHEDULE FOR MERCURY -------------------
Begin weekly, composite-, influent On or before:
and effluent mercury sampling and
analysis. January 11 1997(met)
2) Compile an inventory all possible
contributors of mercury. April 1 1997
P (met)
3) Begin monthly, composite, industrial_
discharger (CYP) mercury sampling and
analysis. April 1, 1997 (met)
4 ) Bed .
a) routine sampling and analysis
of all possible contributors
of mercury.
b) monthly, - i.n-plant , process
mercury sampling and analysis
for the: aeration basin mixed
liquor suspended solids (M.LSS) ;
return activated sludge (RAS);
waste activated sludge (WAS).
May 1, 1997 (met)
August 1, 1997 (met)
c) routine sampling and analysis
of mercury for the: holding pond
supernatant (HPS); land applied
sludge product (LA) . September 1, 1997 (met)
d) monthly, representative,
collection system mercury
sampling and analysis.
5) For the duration of this Order,
submit quarterly progress
reports in triplicate (to:
NCDENR
DWQ Director
POB 29535, Raleigh, NC
27626-0535
6) Develop and submit to DWQ for
approval a plan of action and
schedule to reduce or eliminate
mercury in the effluent (treatment
option) and/or collection system
(pollution prevention option).
7) Implement the corrective plan
of action.
November 1, 1997 (met)
The 15th of. each :
March, June,
.September and
December, begin-
ning upon approval
and execution of
this Order.
May 1, 1998
June 1, 1998
8) Achieve compliance with final
NPDES_permit effluent limitations. June 1, 1999
/D -