NC0020664_Permit Modification_20150821

NPDES DOCUMENT SCANNIN`i COVER SHEET
NPDES Permit:
NC0020664
Spindale WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit 1VModifcation
Complete File - Historical
Engineering Alternatives (EAA)
Renewal Application
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
August 21, 2015
This document is printed on reuse paper - ignore any
content on the reirerse side

ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
August 21, 2015
Mr. Scott Webber
Town Manager
Town of Spindale
P.O. Box 186
Spindale, North Carolina 28160
Subject: NPDES Permit Modification
Permit NC0020664
Spindale WWTP
Rutherford County
Facility Class IV
Dear Mr. Webber:
Donald R. van der Vaart
Secretary
Division personnel have reviewed and approved your request to remove from this permit expansion
conditions for 4.5 MGD and 6.0 MGD. Accordingly, we are forwarding the attached modified NPDES
discharge permit. This modified 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 October 15, 2007 (or as subsequently amended).
The 3.0 MGD requirements will continue as the only permitted flow for this facility. In addition,
revisions were made to The Supplement to Permit Cover Sheet narrative to reflect all the changes in accordance
with the planned 3.0 MGD design rerate construction. The mailing address listed in the A. (2) special condition
for submitting your quarterly chronic toxicity was updated to the current address.
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 Resources or any other
Federal, State, or Local governmental permits that may be required.
If you have any questions concerning this modified permit, please contact Ron Berry at telephone
number [phone] or at email [e-mail].
SicereIY
a
y Zimmerman, P.G.
6Director, Division of Water Resources
Enclosure: Modified NPDES Permit NC0020664
Cc: NPDES File
Central Files
Asheville Regional Office/Water Quality Programs
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] Fax: [phone]
Internet: www.ncdenr.gov
An Equal 0pportunityAAifirmative Action Employer

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Spindale WWTP - NC0020664
USGS Quad Name: Rutherfordton North
Receiving Stream: Catheys Creek
Stream Class: C
Subbasin: Broad — 03-08-02
Lat.: 35°22'52"
Long.: 81°53'18"
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Permit NC0020664
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
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, the
Town of Spindale
is hereby authorized to discharge wastewater from a facility located at the
Spindale WWTP
Ecology Drive
Spindale
Rutherford County
to receiving waters designated as Catheys 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.
This permit modification shall become effective October 1, 2015.
This permit and authorization to discharge shall expire at midnight on July 31, 2018.
Signed this day August 21, 2015.
deS. Jay Zimmerman, P.G.
/
Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

Permit NC0020664
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of
this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the
exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements,
terms, and provisions included herein.
The Town of Spindale is hereby authorized to:
1. Continue to operate a 3.0 MGD wastewater treatment facility consisting of
screening, grit removal, extended aeration, clarification, chlorination, and
dechlorination.
The facility is located at the Town of Spindale Wastewater Treatment Plant on
Ecology Drive in Spindale in Rutherford County.
2. After obtaining an Authorization to Construct permit, construct and operate a
refurbished 3.0 MGD wastewater treatment facility consisting of the following
components:
• Mechanical screen system
• Grit removal system
• Influent meter
• Influent composite sampler
• One (1) 2 MG EQ basin with transfer pumps and mechanical aeration
(New)
• Two (2) 2 MG aeration basins with fine bubble diffusers and blowers (New)
• Two (2) 75 ft diameter clarifiers
• One (1) 118 ft diameter clarifier
• Sludge pump station
• Chlorination
• Two (2) chlorine contact/post aeration chambers
• Dechlorination
• Effluent meter
• Effluent composite sampler
• One (1) 80 ft diameter sludge digester
• One (1) 100 ft diameter sludge digester
3. Discharge from said treatment works via Outfall 001 at the location specified
on the attached map into Catheys Creek, classified C waters in the Broad
River Basin.
Page 2 of 6

Permit NC0020664
Part- I
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (3.0 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:
PARAMETER
•
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Location"
Flow
3.0 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day, 20°C 2
22.5 mg/L
38.2 mg/L
Daily
Composite
Effluent, Influent
Total Suspended Solids2
30.0 mglL
45.0 mg/L
Daily
Composite
Effluent, Influent
NH3 as N
10.0 mg/L
30.0 mg/L
Daily
Composite
Effluent
Dissolved Oxygen3
Daily
Grab
Effluent
Fecal Coliform .
(geometric mean)
200 / 100 mL
400 / 100 mL
Daily
Grab
Effluent
Total Residual Chlorine4
28 µg/L
Daily
Grab
Effluent
pH .
? 6.0 and < 9.0 standard units
Daily
Grab
Effluent
Temperature (°C)
Daily
Grab
Effluent
Total Nitrogen (NO2 + NO3 + TKN)
Quarterly
Composite
Effluent
Total Phosphorus
Quarterly
Composite
Effluent
Chronic Toxicity5
Quarterly
Composite
Effluent
Total Copper?
Quarterly
Composite
Effluent
Total Selenium
Quarterly
Composite
Effluent
Total Silver?
Quarterly
Composite
Effluent
Total Zinc7
Quarterly
Composite
Effluent
Chlorides?
Quarterly
Composite
Effluent
Dissolved Oxygen
6
Grab
U & D
Fecal Coliform (geometric mean)
6
Grab
U & D
Temperature
6
Grab
U & D
Conductivity
6
Grab
U & D
Notes:
1. U: upstream at NCSR 1510 (Hudlow Road), D: downstream at NCSR 1549.
2. The monthly average BOD5 and Total Suspended Solids 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 6.0 mg/L.
4. The facility shall report all effluent TRC values reported by a NC certified laboratory including field
certified. However, effluent values below 50 ug/L will be treated as zero for compliance purposes.
5. Chronic Toxicity (Ceriodaphnia), P/F at 19%. Test shall be conducted in March, June, September
and December [see condition A. (2) for more details].
6. Instream monitoring shall be conducted 3/week from June 1-September 30 and 1/week from
October 1-May 31.
7. Monitoring shall coincide with the Chronic Toxicity monitoring.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 6

Permit NC0020664
A. (2) QUARTERLY CHRONIC TOXICITY PERMIT LIMIT
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 19%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the
"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent
versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or
subsequent versions. 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.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the
permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the two
following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test
Procedure" (Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined. using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that
does have a detectable impairment of reproduction or survival. The definition of "detectable impairment,"
collection methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase
II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the months in which tests were performed. If reporting_pass/fail results using the
parameter code TGP3B, DWQ Form AT-1 (original) is sent to the below address. If reporting Chronic Value
results using the parameter code THP3B, DWQ Form AT-3 (original) is to be sent to the following address:
North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1623 Mail Service Center
Raleigh, NC 27699-1623
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate
signature. 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 Section at
the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be
required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Resources indicate potential impacts to the receiving stream, this permit may be re -opened and modified
to include alternate monitoring requirements or limits.
If the Permittee monitors any pollutant more frequently then required by this permit, the results of such
monitoring shall be included in the calculation & reporting of the data submitted on the DMR & all AT Forms
submitted.
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.
Page 4 of 6

Permit NC0020664
A. (3) EFFLUENT POLLUTANT SCAN
The Permittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed
below. The analytical methods shall be in accordance with 40 CFR Part 136 and shall be sufficiently
sensitive to determine whether parameters are present in concentrations greater than applicable
standards and criteria. Sampling dates shall represent seasonal variation. Unless otherwise
indicated, metals shall be analyzed as "total recoverable."
Ammonia (as N)
Chlorine (total residual, TRC)
Dissolved oxygen
Nitrate/Nitrite
Kjeldahl nitrogen
Oil and grease
Phosphorus
Total dissolved solids
Hardness
Antimony
Arsenic
Beryllium
Cadmium
Chromium
Copper
Lead
Mercury (EPA Method 1631E)
Nickel
Selenium
Silver
Thallium
Zinc
Cyanide
Total phenolic compounds
Volatile organic compounds:
Acrolein
Acrylonitrile
Benzene
Bromoform
Carbon tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane
2-chloroethylvinyl ether
Chloroform
Dichlorobromomethane
1, 1 -dichloroethane
1,2-dichloroethane
Trans- 1,2-dichloroethylene
1,1-dichloroethylene
1,2-dichloropropane
1, 3-dichloropropylene
Ethylbenzene
Methyl bromide
Methyl chloride
Methylene chloride
1, 1 ,2,2-tetrachloroethane
Tetrachloroethylene
Toluene
1,1,1-trichloroethane
1,1,2-trichloroethane
Trichloroethylene
Vinyl chloride
Acid -extractable compounds:
P-chloro-m-cresol
2-chlorophenol
2,4-dichlorophenol
2,4-dimethylphenol
4,6-dinitro-o-cresol
2,4-dinitrophenol
2-nitrophenol
4-nitrophenol
Pentachlorophenol
Phenol
2,4,6-trichlorophenol
Base -neutral compounds:
Acenaphthene
Acenaphthylene
Anthracene
Benzidine
Benzo(a)anthracene
Benzo(a)pyrene
3,4 benzofluoranthene
Benzo(ghi)perylene
Benzo(k)fluoranthene
Bis (2-chloroethoxy) methane
Bis (2-chloroethyl) ether
Bis (2-chloroisopropyl) ether
Bis (2-ethylhexyl) phthalate
4-bromophenyl phenyl ether
Butyl benzyl phthalate
2-chloronaphthalene
4-chlorophenyl phenyl ether
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenzo (a, h) anthracene
1,2-dichlorobenzene
1,3-dichlorobenzene
1,4-dichlorobenzene
3,3-dichlorobenzidine
Diethyl phthalate
Dimethyl phthalate
2,4-dinitrotoluene
2,6-dinitrotoluene
1,2-diphenylhydrazine
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclo-pentadiene
Hexachloroethane
Indeno (1, 2, 3 -cd) pyrene
Isophorone
Naphthalene
Nitrobenzene
N-nitrosodi-n-propylamine
N-nitrosodimethylamine
N-nitrosodiphenylamine
Phenanthrene
Pyrene
1, 2, 4-trichlorobe nzene
Reporting. The effluent pollutant scan shall be performed once/year during 2014, 2015, and 2016,
and test results shall be reported to the Division on DWQ Form -A MR-PPA1 or in a form approved by
the Director by December 31st of each designated sampling year. The report shall be submitted to
the following address: NC DENR / DWR / Central Files, 1617 Mail Service Center, Raleigh, North
Carolina 27699-1617.
Page5of6

Permit NC0020�664
A. (4) MERCURY MINIMIZATION PLAN (MMP)
' The permittee shall develop and implement a mercury minimization plan during this permit term.
The MMP shall be developed within 180 days of the NPDES Permit Effective Date, and shall be
available for inspection on -site. A sample MMP was developed through a stakeholder review process
and has been placed on the Division website for guidance
(http://portal.ncdenr.org/web/wg/swp/ps/npdes, under Model Mercury Minimization Plan). The
MMP should place emphasis on identification of mercury contributors and goals for reduction.
Results shall be summarized and submitted with the next permit renewal.
Page 6 of 6

August 4, 2015
Tom,
This is the minor mod that is needed to address Spindale WWTP recent A to C
application for refurbishment and rerate of their treatment facility from a design
capacity of 6 MGD to 3 MGD. The permittee agreed that he did not need the 4.5
MGD and 6 MGD expansion tiers and requested maintaining the 3 MGD.
Ron

Berry, Ron
From: Scott Webber <[e-mail]>
Sent: Friday, July 10, 2015 4:33 PM
To: Berry, Ron
Cc: Heim, Tim
Subject: RE: Impact of Proposed Construction With Decrease of Spindale WWTP Design Capacity
to 3 MGD
Dear Mr. Berry:
The rehabilitated Spindale Wastewater Treatment Plant will have a 20-year design
average daily flow (ADF) of 3.0 MGD post construction. The town of Spindale therefore
respectfully requests an NPDES permit modification for an ADF of 3.0 MGD. Please
advise us on any additional steps the town must take in this regard.
Sincerely,
Scott Webber
Town Manager
Town of Spindale
PO Box 186
125 Reveley St
Spindale NC, 28160
828-286-2541
Original Message
Subject: Impact of Proposed Construction With Decrease of Spindale WWTP
Design Capacity to 3 MGD
From: "Berry, Ron" <[e-mail]>
Date: Wed, July 08, 2015 2:52 pm
To: Scott Webber <[e-mail]>
Cc: "Heim, Tim" <[e-mail]>
Scott Webber
Town Manager
Town of Spindale
Spindale, NC
Dear Mr. Webber:
Upon review of Spindale WWTP NPDES Permit NC0020664 it was noted the stated
facility's design capacity is 6 MGD. All NPDES permit conditions including the
automatic advancement from 3 MGD up to 6 MGD are based on the 6 MGD
capacity. According to the Authorization to Construct permit application received
June 8, 2015, you are seeking to refurbish the facility. The proposed construction
will result in a design capacity of 3 MGD. Consequently, your NPDES permit will
need to be modified to reflect the new design capacity as the current permit
automatic advancement to the next permitted flow tier conditions will be
1

invalid. The current permit flow advancement condition become invalid once
construction commence and only the 3 MGD tier will be applicable.
Please informed the Division (a reply to his email is acceptable) as to what your
flow requirements starting with 3 MGD will be and request a NPDES permit
modification. Currently your annual flow average is less than 1 MGD and 3 MGD
appears to be more than sufficient to meet the town future demands.
If you have any questions contact Ron Berry at (919) 807 — 6396 or email
[e-mail].
Sincerely,
Ron Berry, Engineer
Division of Water Resources/NCDENR
Phone: (919) 807 - 6396
Email: [e-mail]
Location Address - Archdale Building, Office 925K
512 N. Salibury St.
Raleigh, NC 27699
Mailing Address - Archdale Building, NCDENR/DWR
1617 Mail Service Center
Raleigh, NC 27669-1617
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
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