NC0025909_Permit Modification_20000104

NPDES DOCUMENT SCANNING COVER SHEET
NPDES Permit:
NC0025909
Rutherfordton WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization
to Construct (AtC)
7"
Permit Modification
Complete File - Historical
Correspondence
Speculative Limits
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
January 4, 2000
This document is printed on reuse paper - ignore any -
content on the rezrerse side

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman. Secretary
Kerr T. Stevens, Director
January 4, 2000
Ms. Karen Andrews
Town Manager
134 North Washington Street
Rutherfordton, North Carolina 28139
A7A
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
NPDES Permit NC0025909
Rutherfordton WWTP
Rutherford County
Dear Ms. Andrews:
Personnel in the Division's Asheville Regional Office conducted a review of the permit file for your
facility. The review noted a typographical error in the instructions for instream sampling on the A. (2.)
effluent page. This permit modification corrects the typographical error.
Please find enclosed the revised permit page. This 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 these permit modifications, please contact Charles Weaver
at [phone], extension 511.
cc: Central Files
Asheville Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
NPDES Unit j
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
An Equal Opportunity Affirmative Action Employer
Sincerely,
41214,1:4,4,
rr T. Stevens
Telephone [phone] FAX [phone]
VISIT US ON THE INTERNET @ http://h2o.enr,state.nc.us/NPDES

Permit NC00259O )
A. (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL
During the period beginning on completion of an approved replacement outfall and lasting until
expiration, the Permittee is authorized to discharge from the new outfall 001. Such discharges shall
be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
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°C2
30.0 mg/I
45.0 mg/I
3 / Week
Composite
Influent and Effluent
Total Suspended Solids2
30.0 mg/I
45.0 mg/I
3 / Week
Composite
Effluent
as N
(April 1 - October 31)
2.0 mg/I
3 / Week
Composite
Effluent
NH3 as N
(November 1 - March 31)
4.0 mg/I
3 / Week
Composite
Effluent
Dissolved Oxygen3
3 / Week
Grab
Effluent
Dissolved Oxygen
See Note 1
Grab
Upstream & Downstream
Fecal Coliform
(geometric mean)
200 / 100 ml
400 / 100 ml
3 /Week
Grab
Effluent
Fecal Coliform
(geometric mean)
See Note 1
Grab
Upstream & Downstream
Temperature
Daily
Grab
Effluent
Temperature
3 / Week
Grab
Upstream & Downstream
Total Nitrogen
(NO2 + NO3 + TKN)
Quarterly
Composite
Effluent
Total Phosphorus
Quarterly
Composite
Effluent
Total Residual Chlorine
-
28 µg/l
3 / Week
Grab
Effluent
Chronic Toxicity',
Quarterly
Composite
Effluent
PH5
3 / Week
Grab
Effluent
Conductivity
3 / Week
Composite
Upstream & Downstream
Cadmium
2.8 µg/I
Weekly
Composite
Effluent
Nickel
2 / Month
Composite
Effluent
Copper
2 / Month
Composite
Effluent
Mercury
2 / Month
Composite
Effluent
Zinc
2 / Month
Composite
Effluent
Cyanides
7.0 µg/I
Weekly
Grab
Effluent
Lead
35 µg/I
Weekly
Composite
Effluent
Chlorides
Quarterly
Composite
Effluent
Sulfate
Quarterly
Composite
Effluent
Footnotes:
1. Upstream = just above the outfall. Downstream = at least 300 feet below the outfall. Instream sampling is
to be conducted three times per week during June, July, August, and September and once per week
during the rest of the year.
2. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15 percent
of the respective monthly average influent value (85 % removal).
3. The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/I.
4. Chronic Toxicity (Ceriodaphnia) P/F at 71%; January, April, July, and October; See special condition A.(4).
5. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
6. The quantitation limit for cyanide shall be no greater than 10 µg/1. Levels reported as "less than 10 µg/I"
should be considered zero for compliance purposes.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Special permit conditions applicable to the new outfall 001 are listed on the Supplement to Effluent
Limitations and Monitoring Requirements page.

J 06/17/1995 01:12 4
PAGE 01
Permit NCOQ25909
A. (2). EFFLUENT LIMITATIONS AND MOORING REQUIREMENTS FINAL
During the period beginning on completion of an approved replacement outfall and lasting until
expiration, the Permtttee is authorized to discharge from the new outfall 001. Such discharges Shall
be limited and monitored bathe Permittee as spcoined below:
EFFLUENT •
CHARACTERISTICS
Flow
. Monit,I.y: . {:wtabkly*: ' ,.: mollify • Measi
... Avcra .;:aAver#f9s s Msitlinum . Freq
BOO, 5 day, 20°C2 30-0 m•A 45.0 m
Total St pended Solids2 30.0 m. 45.0 m
NH3 as N
"April 1 - October 31)
NH, as N
(November 1 - March 311
Dissolved Oxygen3
Dissolved Oxygen
Fecal Coliform
(geometric mean)
Focal Coliform
(geometric mean)
Temperature
Temperature
Total Nitrogen
(NO,,! t NO t TKN)
Total Phosphorus
Total Residual Chlorine
Chronic Toxicity4
fH5
Conductivity'
Cadmium
2.0 mg/f
4.0 mg/I
200/100 ml
Conti
3/
3/
31
3/
3/
400/100 ml
See
3
See
Da
3/
Qu
Qua
3/W
Qua
_Nickel
Copper
_Mercury
Zinc
Gyanioei
lead
Chlorides
Sulfate
3/W
3/W
2.8 µfill
Wee
2/M
2/M
21M
7.0 WI
35 µfill
2/M
Wee
Wee
Quart
Quart
MONITORING
REQUIREMENTS
Irement
uanc :..::
Sample
. Type.:::,
••
. amplie Location':
nuous
Recording
Influent or Effluent
Veek
Composite
Influent and Effluent
Veek
Composite
Composite
Effluent
Ifeek
Effluent
Jaok
Composite
Effluent
Effluent
/eek
Grab
tote I
Grab
Grab
Upstream & Downstream
'eek
Effluent
tote 1
Grab
Upstream & Downstream
Ily
Grab
Effluent
bek
Grab
Upstream & Downstream
ferry
Composite
Effluent
erly
Composite
Effluent
eak
Grab
Effluent
erl
sek
Com ite
Grab
Effluent
Effluent
eok
Composite
Upstream & Downstream
kly
Co_posite
Effluent
inth
Co_postte
Effluent
nth
Composite
Effluent
nth
Composite
Effluent
nth
Composite
Effluent
tly -
Grab
Effluent
rly
Composite
Effluent_
tt
Composite
Effluent
ely
Composite
Effluent
Footnotes
Sample locations: Upstream = just above the outfall.
Upstream and downstream sampling is to be conducted three e
times p r week duringJune, July,August, and
September and once per year during the rest of the year,
1 The monthly average effluent BORN and Total Suspended Solids concentrations shall not exceed 15 percent
of the respective monthly average influent value (85 % removafl
The daily average dissolved oxygen effluent concentrati[ur. Rhbn
Chronic 'Toxicity (Ceriodapl-fnla) P/F at 71'
The pH shall not be less: than 6.0 standarG Pott1-it" Fax Note 7871
'theduantitnt]on limit for cyanide shall bt
should be considered zero for compliance ..r
� ceJDeot
Thern shall be no discharge of floating soli(
Special permit conditions applicable to the
Limitations and Monitoring Requirements
f'....•a.'- '.L LV t rUluent