NC0021369_Permit Issuance_20031112

NPDES DOCUMENT SCANNINL COVER :SHEET
NC0021369
Columbus WWTP
NPDES Permit:
Document Type:
Permit Issuance
f
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
November 12, 2003
This document is printed on reuse paper - ignore any
content on the w erse side

WATER
Avi
r NCDENR
--
Mr. Robert Banvcll
Town of Columbus
P.O. Box 146
Columbus, North Carolina 28722
Dear Mr. Banvell:
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
November 12, 2003
Subject: Issuance of NPDES Permit NC0021369
Columbus WWTP
Polk County
Division personnel have reviewed and approved your application for renewal of the subject permit.
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 May 9, 1994 (or as subsequently amended).
This final permit includes no major changes from the draft permit sent to you on September 24,
2003.
This permit includes a TRC limit that will take effect on June 1, 2005. If you wish to install dechlorination
equipment, the Division has promulgated a simplified approval process for such projects.
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 (6714 Mail Service Center, Raleigh, North
Carolina 27699-6714). 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 Charles Weaver at telephone number (919)
733-5083, extension 511.
cc: Central Files
Asheville Regional Office/Water Quality Section
NPDES Unit
Aquatic Toxicology Unit
N. C. Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
Internet: h2o.enr.state.nc.us
Sincerely,
ORIGINAL SIGNED BY
SUS:AN A. \NILSON
Alan W. Klimek, P.E.
Phone: [phone]
fax: [phone]
DENR Customer Service Center 1 800 623-7748

Permit NC0021369
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, the
Town of Columbus
is hereby authorized to discharge wastewater from a facility located at the
Columbus WWTP
355 Levi Road Extension
Columbus
Polk County
to receiving waters designated as an unnamed tributary to Whiteoak 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 shall become effective December 1, 2003
This permit a d authorization to discharge shall expire at midnight on July 31, 2008.
Signed this day November 12, 2003.
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0021369
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 Columbus is hereby authorized to:
1. Continue to operate the existing 0.80 MGD activated sludge wastewater
treatment facility that includes the following components:
> Manual bar screen
> Extended aeration
> Four 15 Hp aerators
> Clarifier
> Chlorination
> Sludge holding
> Recirculating pump station
> Sludge thickening
This facility is located at the Town of Columbus WWTP at 355 Levi Road
Extension in Columbus, Polk County.
2. Discharge from said treatment works at the location specified on the attached
map into an unnamed tributary to Whiteoak Creek, classified C waters in the
Broad River Basin.

Quad: Mill Spring, N.C.
Subbasin: 30802
Latitude: 35°15'13"
Longitude: 82'09' 56"
Receiving Stream: UT \Vhiteoak Creek
Stream Class: C
NCOO21369
Town of Columbus WWTP
Facility
Location
North
SCALE 1:214000

Permit NC0021369
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittce is authorized to discharge from outfall 001. Such discharges shall be limited and
monitored by the Permitter as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Location
Flow
0,80 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day (20°C),
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent, Influent
Total Suspended Solidst
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent, Influent
NH3 as N
Weekly
Composite
Effluent
Fecal Coliform
(geometric mean)
200 / 100 ml
400 / 100 ml
Weekly
Grab
Effluent
Dissolved Oxygen
Weekly
Grab
Effluent
Temperature (2C)
Weekly
Grab
Effluent
Total Residual Chlorine
28 1.tg/L2
2/Week
Grab
Effluent
pH
Between 6.0 and 9.0 standard units
Weekly
Grab
Effluent
Total Nitrogen (NO2 + NO3 + TKN)
2/Year
Composite
Effluent
Total Phosphorus
2/Year
Composite
Effluent
Total Copper
Monthly
Composite
Effluent
Total Silver ,
Monthly
Composite
Effluent
_ Total Zinc
Monthly
Composite
Effluent
Total Cadmium
!Quarterly .
Composite
Effluent
Total Cyanide
i •./
• rQuarterly _
Grab
Effluent
Total Lead
f •
Quarterly
Composite
Effluent
Total Mercury
Quarterly
Composite
Effluent
Chronic Toxicity3
Quarterly
Composite
Effluent
Notes:
1. The monthly average effluent BOD and Total Suspended Solids concentrations shall not exceed
15% of the respective influent value (85% removal).
2. , al r sngo e t �ff�e/oCJ>u ll; 2005��
3. Chronic toxicity (Cerioclaphnia) P/F test at 37% shall be conducted in March, June, September
and December (see A. (2.) for more information].
There shall be no discharge of floating solids or visible foam in other than trace
amounts.

Permit NC0021369
A. (2.) CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 37%.
The permit holder shall perform at a minimum, puarterlu 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, using the
parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWQ
Form AT-3 (original) is to be sent to the following address:
Attention: NC DENR DWQ / Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch 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 Branch 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 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.

PUBLIC NOTICE
STATE OF
NORTH CAROLINA
ENVIRONMENTAL
MANAGEMENT
[OMM I SS I ON /
NPDES UNIT
1617AAA! L
SERVICE CENTER
RALEIGH NC27699-1617
NOTIFICATION OF
INTENT TOISSUE A
NPDES WASTEWATER
PERMIT
On the basis of thorough
staff review and applica-
tion of NC General Statute
143.21, Public law 92.500
and other lawful stan-
dards, and regulations, the
North Carolina Environ-
mental Management
Commission proposes to
issue a Notional Pollutant
Discharge Elimination
System (NPDES) waste-
water discharge permit to
the persOn(s) listed below
effective 45 days from the
publish date of this notice.
Written comments regard-
ing the proposed permit
will be accepted until 30
days after the publish date
of this notice- All com-
ments received prior to
that date are considered in
the final determinations
regarding the proposed
permit. The Director of
the NC Division of Water
Quality may decide to hold
a public meeting for the
proposed permit should
the Division receive a sip-
nificont degree of public
interest.
Copies of the draft permit
and other supporting in-
formation on file used to
determine conditions pre-
sent in the draft permit are
available upon request
and payment of the costs
of reproduction. Mail
comments and/or requests
for information to the NC
Division of Water Quality
at the above address or
call Ms. Valery Stephens
at [phone], extension
520. Please include the
NPDES permit number
(attached) in any com-
munication Interested
persons may also visit the
Division of Water Quality
at 512 N. Salisbury Street.
Raleigh, NC 27604-1148 be-
tween the hours of 8:00 am
and 5:00 pm to review in-
formation on file.
The Town of Columbus
(P.O. Box 146, Columbus,
NC 28722) has applied for
renewal of NPDES permit
NC0021369 for its WWTP in
Polk County. This permit-
ted facility discharges
treated domestic waste•
water to an unnamed
tributary 10 Whiteoak
Creek in the Broad River
Basin. Currently fecal coli-
form and total residual
chlorine are water quality
limited. This discharge
may affect future alloca-
tions in this portion of the
Broad River basin.
NPDES Permit Number
NC0087700, Robert Hamil-
ton, Jr., The. Hampton
Club Inc. -Wade Hampton
Horizons Estate, Jackson
County, has applied for a
new permit for a proposed
facility that will discharge
treated domestic waste-
water to the UT Trout
Creek in the Little Tennes-
see River Basin. Proposed
parameters for BOD5,
NH3, dissolved oxygen, fe-
cal coliform, and total re-
sidual chlorine are water
quality limited. This dis-
charge may affect future
oilocotions in this portion
of the receiving stream.
AFFIDAVIT OF PUBLICATION
ri I` 1,1 11
BUNCOMBE COUNTY
SS.
NORTH CAROLINA
,47
OCT ' 7 2003
Before the undersigned, a Notary Public of said
County and State, duly commissioned, qualified and
authorized by law to administer oaths, personally
appeared Darryl Rhymes, who, being first duly
sworn, deposes and says: that he is the Legal
Billing Clerk of The Asheville Citizen -Times,
engaged in publication of a newspaper known as
The Asheville Citizen -Times, published, issued,
and entered as second class mail in the City of
Asheville, in said County and State; that he is
authorized to make this affidavit and sworn
statement; that the notice or other legal
advertisement, a true copy of which is attached
hereto, was published in The Asheville Citizen -
Times on the following date: September 27, 2003.
And that the said newspaper in which said notice,
paper, document or legal advertisement were
published were, at the time of each and every
publication, a newspaper meeting all of the
requirements and qualifications of Section 1-597 of
the General Statues of North Carolina and was a
qualified newspaper within the meaning of Section
1-597 of the General Statues of North Carolina.
Sig - d this 2nd day of ► ' tober, 2003
(Signature of pe..n making all' 'it)
Sworn to and subscribed before me the 2nd day of
October, 2003
Public)
My ommission expires the 3rd day of September
200
September 27, 2003 .
(6244)

PUBLIC NOTICE
STATE OF NORTH CAROLINA
Environmental Management
Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notification of Intent to Issue a
NPDES Wastewater Permit
0n the basis of thorough staff
review and application of NC General
Statute 143.21, Public law 92-500
and other lawful standards and
regulations, the North Carolina
Environmental Management Com-
mission proposes to issue a
National Pollutant Discharge
Elimination System (NPDES) waste-
water discharge permit to the
person(s) listed below effective 45
days from the publish date of this
notice.
Written comments regarding the
proposed permit will be accepted
until 30 days after the publish date
of this notice. All comments
received prior to that date are
considered in the final deter-
minations regarding the proposed
permit. The Director of the NC.
Division of Water Quality may decide
to hold a public meeting for the
proposed permit should the Division
receive a significant degree of public
interest.
Copies of the draft permit and
other supporting information on file
used to determine conditions
present in the draft permit are
available upon request and payment
of the costs of reproduction. Mail
comments and/or requests for
information to the N.C. Division of
Water Quality at the above address
or call Ms. Valery Stephens at
[phone], extension 520.
Please include the NPDES permit
number (attached) in any com-
munication. Interested persons may
also visit the Division of Water
Quality at 512 N. Salisbury Street,
Raleigh, NC 27604-1148 between
the hours of 8:00 a.m. and 5:00 p.m.
to review information on file.
The Town of Columbus (P.O. Box
146, Columbus, NC 28722) has
applied for renewal of NPDES permit
NC0021369 for its WWTP in Polk
County. This permitted facility
discharges treated domestic waste-
water to an unnamed tributary to
White Oak Creek in the Broad River
Basin. Currently fecal coliform and
total residual chlorine are water
quality limited. This discharge may
affect future allocations in this
portion of the Broad River basin.
adv. 9/26
NORTH CAROLINA — POLK
AFFIDAVIT OF PUB
UN
tfllw
OCT 7 2003
DENR
SOURCE �BRANCH
Before the undersigned, a Notary Public of said County
and State, duly commissioned, qualified, and authorized by
law to administer oaths, personally appeared - / s
_ who being first duly sworn, deposes
and says: thatshe is .&sfO i K1?� le. rSee of THE
TRYON DAILY BULLETIN, engaged in the publication of
a newspaper known as THE TRYON DAILY BULLETIN,
published, issued, and entered as second class mail in the
Town of Tryon, in said County and State; that he is au-
thorized to make this affidavit and sworn statement; that
the notice or other legal advertisement, a true copy of
which is attached hereto. was published in THE TRYON
DAILY BULLETIN on the following dates:
and that the said newspaper in which such notice, paper,
document, or legal advertisement was published was, at the
time of each and every such publication, a newspaper meet-
ing all of the requirements and qualifications of Section
1-597 of the General Statutes of North Carolina and was a
qualified newspaper within the meaning of Section 1-597
of the General Statutes of North Carolina.
This_ _____ ___ day of
ignature of person making affidavit
Sworn to ad subscribed before me, this.__
day of._____
•
(Notary Public)
expires:
7:

Whole Effluent Toxicity Testing Self -Monitoring Summary
FACILITY REQUIREMENT
September 16, 2003
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NM' DEC
Colonial Pipeline/004 24hr LC50 uc ntonit cpis Rhd (grab)
NC0031046/004 Bcgin:2/1/2002 Frequency
County: Guilford Regan: WSRO Subbasin; CPF08
PF: NA Special
7Q10: 0.0 IWC(9:; 100.0
NonComp
1999 >100
2000 Invalid — >100
2001 >100 — —
2002 >100
2003 >100
Colonial Pipeline/005 24hr LC50 ac monk cpis fthd (grab)
NC0031)146/005 Begin:2/I/2002 Frcqucncy A
County:Guilford Region: WSRO Subbasin: CPF08
PF: NA Special
7Q10: 0.11 I0'C(% ; 11)0.0
NonComp
1999 >100 — —
2000 Invalid — >100
2001 >100 — —
2002 >100 —
2003 >100 —
-Color-Ty' Finishing Corp. - --chr lim: 12%
NCI1005487/1101 Bcgin:12/1/1999 Frequency Q Feb May Aug Nov
County: Rowan Region: MRO Subbasin: YAD(14
PF: 4.25 Special
7Q10: 103(1 I WC(°: 0.64
* NonComp Single
Y 1999 — 68.80,62.37
2000 — Pass
2001 NR NR
2002 — H
2003 — H
— — 92.83 — — >100
— — Pass — — NRlPass
— — H — — H
— — H — — H
— — H
— — Invalid -
- — Fail Foid,NR
— — H -
- — H
Columbus W\\TI' chr lira: 378„
NC11112136936) 1 13egnr. 121 1/)998 Frcqucncy Q P/F + Mar Jun Sep Dcc
County: folk Region: ARO Subbuin: DRD02
I'1': 11.8 Special
7Q10: 2.1 IWC'I 37.0S
4- NonComp Single
Y 1999 — — Pass — — Pass — — Pass — — Pass
2000 — — Pass — — Pass — — Pass — — Pass
2001 — — Pass — — Pass — — Pass — — Pass
2002 — — Late Pass — Pass — — Pass — — Pass
2003 — — Pass — — Pass —
Comm Scope IncJ001 chr lim: 341: 1999 — Fail NR Pass Pass — — Fail NR/Lale Pass Pass
NC0034754/001 Degm:11/1/2001 Frcqucncy Q Feb May Aug Nov + NonComp Single 2000 — Fail Fail,Fail NR Pa55 — — Pass — — Pass
County:Catawba Region: MRO Subbasin: CTB32 2001 — FaII,Failt — — Pass — — Pass — Pass Pass
PF: (1.02 Special 2002 — Pima — — Pass — — Pass — — Pass
7Q10:0,06 IWC(14,;34 2003 — Pass — — Pass — —
Cumin Scope Inc./002 24hr LC50 ac monk cpis RIM
NC0034754/002 Begin:I1/I/200i Frcqucncy Q I/calendar Q
County:Catawba Region: MRO Subbasin: CTB32
PF: var Special
7010: ((.05 IWC(%:na
NonComp
1999 — — H — — H — — H — — Invalid
2000 — — NR — — NR — — H — — H
2001 — — H — — H — — H — — H
2002 — — H — — H — — H — — H
2003 — — H — — H —
Conlm Scope IncJ003 24hr LC50 ac monk epis fthd (composite wmpling) 1999 — — H — — H — — H — — Invalid
NC0034754/003 Begin:11/1/2001 Frequency Q 1/calendar Q NonComp 2000 — — NR — — NR — — H — — H
County:Catawba Region: MRO Subbasin: CTB32 2001 — — H — — H — — H — — H
PE: var Special 2002 — — H — — H — — H — — H
7010: 0.0 IWC(%;na 2003 — — H — — H —
Comm Scope Inc.N04 24 hr LC50 ac monk cpis fthd (composite sampling)
HC00347541004 Begin:11/12001 Frequency Q I/calendar Q NonComp
County:Catawba Region: MRO Subbasin: CT632
PF: var Special
7Q10: 00 IWC(%;na
1999 —
2000 —
2001 —
2002 —
2003 —
— H — — H — — H — — Invalid
— NR — — NR — — H — — H
— H — — H — — H — — H
— H — — H — — H — — H
— >100 463 — — —
Communications Instruments Inc chr lint: 5.6% (Grab)
NC0033227/004 Begin:6/1/2001 Frequency Q Fah May Aug Nov + NonComp Single
County: Buncombe Region: ARO Subbasin: FRB02
PF: (1.288 Special
7010: 7.5 IWC(%:5.6
1999 — Pass — — NR Pass — Pass — — Pass •-•
2000 — Pass — — Fail >22 >22 Pass — — Pass —
2001 — Pass — — Pass — — Pass — — H Pass
2002 — Pass — — Pass — — Pass — — Pass —
2003 — Fail >22 >22 Pa55 — — Pass
Concord Rocky River W11TP chr lint: 69%:if 24MGD chr Iiin 73%;if 28MGD chr Iim 76%; i Y 1999 — >99 — — >99 — — >99 — — >99
NC11036269/001 Bcgin:2/I2001 Frcqucncy Q Feb May Aug Nov + NonComp Single 2000 — >99 — — 78.B — — >99 — — >99
County:Csbarrus Region: MRO Subbasin: YAD12 2001 — >99 — — >99 — — >99 — — >99
I'F: 20 Special 2002 — >99 — — >99 — — >99 — — >99
7Q10: 1.10 IWC(%.:6) 2003 — >99 — — >99 — — >99
Cone Mills - Clil1'side chr lint: 4.21:
NC000-14051001 Begin:2/1/1999 Frcqucncy Q P/F + Jun Apr Jul Oct
County: Rutherford Region: ARO Subbasin: BRD112
PF: 1.75 Special
7010: 62.10 IWC(% 4,19
+ NonComp Single
1999 Pass — — Pass — — Pass — — Pass
2000 Fail Fail Pass PasS — — Pass — — Pass
2001 Fait 24>10 >10 Pass — — Pass — — Pass
2002 Pass — — Pass — — Pass — — Pass
2003 Pass — — Pass — — Pass
Y Pre 199) Data Available
LEGEND:
PERM = Permit Requirement LET = Administrative Letter - Target Frcqucncy = Monitoring frequency: Q. Quancrly; M- Monthly; BM- Bimonthly; SA- Semiannually; A- Annually; OW D- Only when discharging; D- Discontinued monitoring requirement
Begin = First month required 7Q10 = Receiving stream low flow criterion (cfs + = quarterly monitoring increases to monthly upon failure or N Months that testing must occur- ex. Jan. Apr- Jul, Oct NonComp = Current Compliance Requirement
PF = Permitted flow (MGD) IIVC% = Instrcam waste cotrcentrati P/F = Pass/Fail test AC = Acute CHR = Chronic
Data Notation: f - Fathead Minnow; ' - Ccriodaplmia sp.; my - Mysid shrimp; ChV - Chronic value; P - Mortality of stated percentage at highest concentration; at - Performed by DWQ Aquatic Tox Unit; bt - Bad test
Reporting Notation: ---- Data not required; NR - Not reportc Facility Activity Status: 1 - Inactive- N - Newly lssued(To construct); H - Active but not discharging; t-Morc data available for month in question; • = ORC signature needed
12

Facility Name =
Q►w (NMGD) =
WWTP Classification
NPDES # =
Receiving Stream
IWC(%) =
Town of Columbus
0.8
2
NC0021369
UT to Whiteoak Creek
37.13
easonable Potential Summar%
Final Results:
Stream Classification
7Q10s (cfs)=
30Q2 (cfs)
Qavg (cfs)
1°
2°
30
4°
c
2.1
6.8
Cadmium
Max. Pred Cw
Allowable Cw
5.1 µg/1
5.4 µg/l
:Implementation
!Are all reported values less than?
Its the detection limit acceptable?
'
1
No
Yes
Limit?
Monitor?
No
Yes
1 Monitoring
(Frequency Quarterly
'
1
1/2 FAV (non Trout)
15.0 µg/1
Coper:::::::.::::.:::::.:::::::::::::::::
Max. Pred Cw
Allowable Cw
327.4 µg/I
18.9 µg/I
$ Implementation
!Are all reported values less than?
I is the detection limit acceptable?
i
No
Yes
Limit?
Monitor?
No
Yes
!Monitoring
'Frequency Monthly
1
1/2 FAV
7.3 µg/1
Cyanide
Max. Pred Cw
Allowable Cw
2.5 µg/1
13.5 µg/l
I Implementation
!Are all reported values less than?
I Is the detection limit acceptable?
No
Yes
Limit?
Monitor?
No
Yes
1
!Monitoring
I Frequency Quarterly
I
1/2 FAV
22.0 µg/1
1
Lead
Max. Pred Cw
Allowable Cw
65.7 µg/1
67.3 g/1
:Implementation
,Are all reported values less than?
'Is the detection limit acceptable?
1
No
Yes
Limit?
Monitor?
No
Yes
'
Monitoring
'Frequency Quarterly
I
1/2 Fay
33.8 Iµg/1
Mercury
Max. Pred Cw
Allowable Cw
0.1678 µgll
0.0323 µg/1
:Implementation
.Are all reported values less than?
!Is the detection limit acceptable?
Y
Yes
Limit?
Monitor?
No
Yes
:
.Monitoring
!Frequency Quarterly
0:.........................
i;.i`::::::::::::::::::::::::::;::-:::::
Max. Pred Cw
Allowable Cw
11.6 µg/1
0.2 µg/1
I Implementation
:Are all reported values less than?
1 Is the detection limit acceptable?
I
No
Yes
Limit?
Monitor?
No
Yes
1
;Monitoring
'Frequency Monthly
I
1/2 FAVI
1.21µg/1
Zinc: :::::::::::::::
Max. Pred Cw
Allowable Cw
473.4 µg/1
134.7 ugh
I Implementation
:Are all reported values Tess than?
'Is the detection limit acceptable?
No
Yes
Limit?
Monitor?
No
Yes
I
i Monitoring
'Frequency Monthly
I
1/2 FAV
67.0 µg/1
,

Facility Name =
NPDES # =
Qw (MGD) =
7QIOs (cfs)=
IWC(%) =
Town of Columbus
NC0021369
0.8
2.1
37.13
FINAL RESULTS
Cadmium
Max. Pred Cw
Allowable Cw
5.1
5.4
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.3845
0.6
0.6576
59
1.70
3.0 µg/I
5.1 µg/1
5.4 nil
Parameter =
Standard =
Cadmium
2.0
n < Actual Data BDL=1/2DL
1 < 1 0.5
2 < 1 0.5
3 < 1 0.5
4 < 1 0.5
5 < 1 0.5
6 < 1 0.5
7 < 1 0.5
8 < 1 0.5
9 < 1 0.5
10 < 1 0.5
11 < 2 1.0
12 < 1 0.5
13 < 1 0.5
14 < 1 0.5
15 < 1 0.5
16 < 1 0.5
17 < 1 0.5
18 < 1 0.5
19 < 1 0.5
20 1. 1.0
21 < 1 0.5
22 < 1 0.5
23 < 1 0.5
24 < 1 0.5
25 < 1 0.5
26 < 1 0.5
27 < 1 0.5
28 < 1 0.5
29 < 1 0.5
30 < 1 0.5
31 < 1 0.5
µg/1

32 < 1 0.5
33 < 1 0.5
34 < 1 0.5
35 < 1 0.5
36 2. 2.0
37 < 1 0.5
38 < 1 0.5
39 < 1 0.5
40 < 1 0.5
41 < 1 0.5
42 3. 3.0
43 < 1 0.5
44 < 1 0.5
45 < 1 0.5
46 ' < 1 0.5
47 < 1 0.5
48 < 1 0.5
49 < 1 0.5
50 < 1 0.5
51 < 1 0.5
52 < 1 0.5
53 < 1 0.5
54 < 1 0.5
55 < 1 0.5
56 < 1 0.5
57 < 1 0.5
58 < 1 0.5
59 < 1 0.5

Facility Name =
NPDES # =
Q►t' (MGD) =
7Q10s (cfs)=
1WC(%) =
Town of Columbus
NC0021369
0.8
2.1
37.13
FINAL RESULTS
Cyanide
Max. Pred Cw
Allowable Cw
2.5
13.5
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.0000
2.5
0.0000
30
1.00
2.5 µg/I
2.5 AO
13.5 µg/1
Parameter =
Standard =
Cyanide
5.0
n < Actual Data BDL=1/2DL
1 < 5 2.5
2 < 5 2.5
3 < 5 2.5
4 < 5 2.5
5 < 5 2.5
6 < 5 2.5
7 < 5 2.5
8 < 5 2.5
9 < 5 2.5
10 < 5 2.5
11 < 5 2.5
12 < 5 2.5
13 < 5 2.5
14 < 5 2.5
15 < 5 2.5
16 < 5 2.5
17 < 5 2.5
18 < 5 2.5
19 < 5 2.5
20 < 5 2.5
21 < 5 2.5
22 < 5 2.5
23 < 5 2.5
24 < 5 2.5
25 < 5 2.5
26 < 5 2.5
27 < 5 2.5
28 < 5 2.5
29 < 5 2.5
30 < 5 2.5
µg/1

Facility Nance =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
1WC (%) =
Town of Columbus
NC0021369
0.8
2.1
37.13
FINAL RESULTS
Copper
Max. Pred Cw
Allowable Cw
327.4
18.9
RESULTS
Std Dcv.
Mean
C.V.
Number
of data points
Malt Factor =
Max. Value
Max. Pred Cw
Allowable Cw
27.2317
34.6
0.7878
30
2.39
137.0 µg/I
327.4 µg/I
18.9 µg/I
Parameter =
Standard =
Copper
7.0
n < Actual Data BDL=1/2DL
1 31. 3.1.0
2 48. 48.0
3 5. 5.0
4 31. 31.0
5 26. 26.0
6 20. 20.0
7 16. 16.0
8 23. 23.0
9 24. 24.0
10 24. 24.0
11 21. 21.0
12 20 20.0
13 29. 29.0
14 27 27.0
15 48 48.0
16 22. 22.0
17 39. 39.0
18 10. 10.0
19 13. 13.0
20 19. 19.0
21 45. 45.0
22 48. 48.0
23 59. 59.0
24 42. 42.0
25 4. 4.0
26 22. 22.0
27 22. 22.0
28 137. 137.0
29 93. 93.0
30 69. 69.0
µg/1

Facility Name =
NPDES # =
Qw (MGD) =
7Q1Os (cfs)=
IWC (%) =
Town of Columbus
NC0021369
0.8
2.1
37.13
FINAL RESULTS
Lead
Max. Pred Cw
Allowable Cw
65.7
0.0
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mull Factor =
Max. Value
Max. Pred Cw
Allowable Cw
3.1112
2.1
1.4815
30
3.86
17.0 µg/I
65.7 µg/1
67.3 µg/l
Parameter =
Standard =
Lead
25.0
n < Actual Data BDL=1/2DL
1 < 2 1.0
2 6. - 6.0
3 < 2 1.0
4 < 2 1.0
5 < 2 1.0
6 < 2 1.0
7 < 2 1.0
8 < 2 1.0
9 < 2 1.0
10 < 2 1.0
11 < 2 1.0
12 < 2 1.0
13 < 2 1.0
14 < 2 1.0
15 2. 2.0
16 < 2 1.0
17 < 2 1.0
18 < 2 1.0
19 < 2 1.0
20 < 2 1.0
21 5. 5.0
22 < 2 1.0
23 < 2 1.0
24 2. 2.0
25 17. 17.0
26 < 2 1.0
27 < 2 1.0
28 < 2 1.0
29 4. 4.0
30 4. 4.0

Facility Name =
NPDES It =
Q►i' (MGD) =
7Q10s (cfs)=
!WC (%) =
Town of Columbus
NC0021369
0.8
2.1
37.13
FINAL RESULTS
Mercury
Max. Pred Cw
Allowable Cw
0.168
0.032
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mull Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.0091
0.102
0.0898
30
1.119
0.150 µg/l
0.168 µg/1
0.032 µg/1
Parameter =
Standard =
Mercury
0.012
n < Actual Data BDL=1/2DL
1 < 0.2 0.100
2 < 0.2 0.100
3 < 0.2 0.100
4 < 0.2 0.100
5 < 0.2 0.100
6 < 0.2 0.100
7 < 0.2 0.100
8 < 0.2 0.100
9 < 0.2 0.100
10 < 0.2 0.100
11 < 0.2 0.100
12 < 0.2 0.100
13 < 0.2 0.100
14 < 0.2 0.100
15 < 0.2 0.100
16 < 0.2 0.100
17 < 0.2 0.100
18 < 0.2 0.100
19 < 0.2 0.100
20 < 0.2 0.100
21 < 0.2 0.100
22 < 0.2 0.100
23 < 0.3 0.150
24 < 0.2 0.100
25 < 0.2 0.100
26 < 0.2 0.100
27 < 0.2 0.100
28 < 0.2 0.100
29 < 0.2 0.100
30 < 0.2 0.100

Facility Name =
NPDES # =
Q►►• (MGD) =
7Q10s (cfs)=
1WC(%) =
Town of Columbus
NC0021369
0.8
2.1
37.13
FINAL RESULTS
Silver
Max. Pred Cw
Allowable Cw
11.57
0.16
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Malt Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.9613
3.2
0.3004
30
1.45
8.00 µg/1
11.57 µg/1
0.16 µg/I
Parameter =
Standard =
Silver
0.06
n < Actual Data BDL=1/2DL
1 < 3 1.5
2 < 3 l.5
3 < 3 1.5
4 < 2 1.0
5 < 3 1.5
6 < 3 1.5
7 < 3 1.5
8 < 3 1.5
9 < 3 1.5
l0 < 3 1.5
11 < 3 1.5
12 < 3 1.5
13 < 3 1.5
14 < 3 1.5
15 < 3 1.5
16 < 3 1.5
17 < 3 1.5
18 < 3 1.5
l9 < 3 1.5
20 < 3 1.5
21 < 3 1.5
22 < 3 1.5
23 < 3 1.5
24 < 3 1.5
25 4. 4.0
26 < 3 l.5
27 < 3 1.5
28 8. 8.0
29 4. 4.0
30 < 3 1.5
µg/1

Facility Name =
NPDES # =
Qw (MGD) =
7Q1Os (cfs)=
IWC(%) =
Town of Columbus
NC0021369
0.8
2.1
37.13
FINAL RESULTS
Zinc
Max. Pred Cw
Allowable Cw
Allowable #/day
473.4
134.7
0.0
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mttlt Factor =
Max. Value
Max. Pred Cw
Allowable Cw
57.8508
123.7
0.4678
30
1.75
271.0 µg/1
473.4 µgll
134.7 µg/1
Parameter =
Standard =
n < Actual Data
1 110.
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23 <
24
25
26
27
28
29
30
Zinc
50.0
BDL=1/2DL
110.0
210. 210.0
70. 70.0
50. 50.0
140. 140.0
80. 80.0
100. 100.0
90. 90.0
150. 150.0
90. 90.0
110. 110.0
140. 140.0
110. 110.0
130. 130.0
120. 120.0
159. 159.0
70. 70.0
60. 60.0
210. 210.0
118. 118.0
109. 109.0
50. 50.0
50 25.0
115. 115.0
271. 271.0
164. 164.0
81. 81.0
220. 220.0
218. 218.0
140. 140.0
µg/1

Town of Columbus - NC0021369
DMR Data Summary
Flow Temp. (deg D.O. 13OD Fecal NH3-N
Date (MGD) C) (mg/L) (mg/L) TSS (mg/L) (#/100 mL) TRC (ug/L) (mg/L) TN (mg/L) TP (mg/L)
Jan-01 0.1885
Feb-01 0.1864
Mar-01 0.2286
Apr-01 0.1916
May-01 0.2021
Jun-01 0.1661
JuI-01 0.2108
Aug-01 0.1938
Sep-01 0.2240
Oct-01 0.1695
Nov-01 0.1762
Dec-01 0.1908
Jan-02 0.1985
Feb-02 0.1758
Mar-02 0.1741
Apr-02 0.1724
May-02 0.1802
Jun-02 0.1545
Ju1-02 0.1630
Aug-02 0.1679
Sep-02 0.1719
Oct-02 0.1871
Nov-02 0.1786
Dec-02 0.2030
Jan-03 0.1496
Feb-03 0.1620
Mar-03 0.1775
Apr-03 0.2077
May-03 0.2105
Jun-03 0.2044
9.28 8.20 19.80 1.60 170.0 0.15 1.80 0.99
10.95 7.25 19.20 1.40 194.5 1.10
8.76 5.00 11.20 25.40 170.0 0.15
12.82 6.00 21.60 4.80 200.0 7.75
14.68 7.75 16.20 1.80 126.8 0.05
18.04 10.25 9.00 1.40 137.4 0.05
19.52 7.80 9.20 1.00 160.5 0.00 14.20 1.90
20.04 6.75 7.50 5.30 188.3 0.15
17.11 15.25 11.00 3.10 170.6 0.20
14.21 5.20 7.20 3.00 196.8 0.00
12.58 4.94 11.00 15.00 14.61 181.1 0.20
11.58 4.62 3.60 12.80 36.19 191.6 0.15
9.24 4.85 11.75 15.25 49.69 196.2 0.43 1.30 4.40
9.85 5.55 1.75 8.50 8.49 202.0 0.24
11.25 4.53 1.75 16.50 7.67 208.0 0.06
15.32 4.46 9.00 19.80 3.44 191.8 0.85
16.41 4.33 12.20 33.40 2.03 198.2 8.40
18.75 3.98 16.50 22.50 4.12 205.0 20.55
23.45 3.84 4.60 7.60 3.47 199.6 0.15
22.73 3.60 4.50 9.25 2.11 203.2 0.00
20.65 3.21 3.50 5.50 7.04 205.0 0.05
18.61 3.86 1.25 10.25 2.85 191.7 0.15
12.47 4.32 0.00 11.25 90.19 202.1 0.10
9.84 4.83 3.40 10.60 13.82 196.5 0.60
8.10 5.11 18.50 15.00 3.38 218.1 0.30 6.00 1.30
9.25 4.90 1.75 6.75 1.57 216.5 0.35
13.52 4.62 14.50 25.50 1.00 193.8 10.70
14.05 4.44 47.80 47.20 2.09 183.8 10.73
16.68 4.12 105.50 87.25 2.06 177.3 24.00
19.05 4.20 56.40 60.60 1.15 187.6 34.75
Average 0.19 14.63 4.42 13.62 19.08 10.19 188.80 4.08 5.83 2.15
Maximum 0.2286 23.45 5.55 105.5 87.25 90.19 218.095 34.75 14.2 4.4
Minimum 0.15 8.10 3.21 0.00 5.50 1.00 126.82 0.00 1.30 0.99

Cadmium
Month Day Year Comment Value Modifie UoM
1 2 2001 < 1 LESST ug/I
1 16 2001 < 1 LESST ug/I
2 5 2001 < 1 LESST ug/I
2 19 2001 < 1 LESST ug/I
3 12 2001 < 1 LESST ug/I
3 26 2001 < 1 LESST ug/I
4 2 2001 < 1 LESST ug/1
4 16 2001 < 1 LESST ug/I
5 7 2001 < 1 LESST ug/I
6 4 2001 < 1 LESST ug/I
6 18 2001 < 2 LESST ug/I
7 9 2001 < 1 LESST ug/I
7 23 2001 < 1 LESST ug/I
8 6 2001 < 1 LESST ug/I
8 20 2001 < 1 LESST ug/1
9 4 2001 < 1 LESST ug/I
9 17 2001 < 1 LESST ug/I
10 1 2001 < 1 LESST ug/I
10 15 2001 < 1 LESST ug/1
11 5 2001 1. ug/1
11 19 2001 < 1 LESST ug/I
12 3 2001 < 1 LESST ug/I
12 17 2001 < 1 LESST ug/I
1 7 2002 < 1 LESST ug/I
1 22 2002 < 1 LESST ug/l
2 4 2002 < 1 LESST ug/I
2 18 2002 < 1 LESST ug/1
3 4 2002 < 1 LESST ug/1
3 18 2002 < 1 LESST ug/I
4 1 2002 < 1 LESST ug/I
4 8 2002 < 1 LESST ug/I
5 6 2002 < 1 LESST ug/I
5 17 2002 < 1 LESST ug/I
6 3 2002 < 1 LESST ug/1
6 17 2002 < 1 LESST ug/I
7 1 2002 2. ug/I
7 15 2002 < 1 LESST ug/I
8 5 2002 < 1 LESST ug/I
8 19 2002 < 1 LESST ug/I
9 3 2002 < 1 LESST ug/1
9 16 2002 < 1 LESST ugll
10 14 2002 3. ug/1
10 21 2002 < 1 LESST ug/l
11 4 2002 < 1 LESST ug/I
11 18 2002 < 1 LESST ug/1
12 2 2002 < 1 LESST ug/I
12 16 2002 < 1 LESST ug/I
1 6 2003 < 1 LESST ug/I

1 21 2003 < 1 LESST ugll
2 3 2003 < 1 LESST ug/I
2 18 2003 < 1 LESST ug/I
3 3 2003 < 1 LESST ug/I
3 17 2003 < 1 LESST ug/I
4 7 2003 < 1 LESST ug/I
4 22 2003 < 1 LESST ug/I
5 5 2003 < 1 LESST ug/I
5 19 2003 < 1 LESST ug/I
6 2 2003 < 1 LESST ug/I
6 16 2003 < 1 LESST ug/

Copper CN AG
Value Modifie UoM Comment Value Modifie UoM Comment Value Modifle UoM
.031 mg/1 < 5 LESST ug/I < 0.003 LESST mg/1
.048 mg/l < 5 LESST ug/I < 0.003 LESST mg/1
.005 mg/1 < 5 LESST ug/I < 0.003 LESST mg/l
.031 < 5 LESST ug/l < 0.002 LESST mg/l
.026 mg/l < 5 LESST ug/1 < 0.003 LESST mg/1
.02 mg/I < 5 LESST ug/1 < 0.003 LESST mg/I
.016 mg/I < 5 LESST ug/1 < 0.003 LESST mgll
.023 mg/I < 5 LESST ug/I < 0.003 LESST mgll
.024 mg/I < 5 LESST ug/1 < 0.003 LESST mg/I
.024 mg/1 c 5 LESST ug/1 < 0.003 LESST mg/I
.021 mg/I < 5 LESST ug/1 < 0.003 LESST mg/I
0.020 mg/l < 5 LESST ug/I < 0.003 LESST mg/I
.029 mg/I < 5 LESST ug/I < 0.003 LESST mg/I
0.027 mg/l < 5 LESST ug/I < 0.003 LESST mg/I
0.048 mg/l < 5 LESST ug/I < 0.003 LESST mg/I
.022 mg/I < 5 LESST ug/I < 0.003 LESST mg/I
.039 mg/l < 5 LESST ug/I < 0.003 LESST mg/I
.01 mg/l < 5 LESST ug/I < 0.003 LESST mg/I
.013 mg/l < 5 LESST ug/I < 0.003 LESST mg/l
.019 mg/l < 5 LESST ug/I < 0.003 LESST mg/l
.045 mg/I < 5 LESST ug/I < 0.003 LESST mg/l
.048 mg/1 < 5 LESST ug/I < 0.003 LESST mg/l
.059 mg/I < 5 LESST ug/I < 0.003 LESST mg/I
.042 mg/I < 5 LESST ug/I < 0.003 LESST mg/I
.004 mg/l < 5 LESST ug/I .004 mg/I
.022 mg/I < 5 LESST ug/I < 0.003 LESST mg/I
.022 mg/I < 5 LESST ug/I < 0.003 LESST mg/I
.137 mg/l < 5 LESST ug/1 .008 mg/I
.093 mg/l < 5 LESST ug/I .004 mg/I
.069 mg/l < 5 LESST ug/I < 0.003 LESST mg/I

Zinc Lead Mercury
Month Day Year Comment Value Modifie UoM Comment Value Modifie UoM Comment Value Modifie UoM Comment
1 2 2001 .11 mg/I < 2 LESST ugll < 0.2 LESST ug/1
2 5 2001 .21 mg/1 .006 ug/I < 0.2 LESST ug/1
3 12 2001 .07 mg/l < 2 LESST ug/l < 0.2 LESST ug/l
4 2 2001 .05 mg/l < 2 LESST ug/l < 0.2 LESST ug/1
5 7 2001 .14 mg/I < 2 LESST ug/l < 0.2 LESST ug/l
6 4 2001 .08 mg/1 < 2 LESST ug/l < 0.2 LESST ug/l
7 9 2001 .1 mg/I < 2 LESST ug/1 < 0.2 LESST ug/I
8 6 2001 .09 mg/I < 2 LESST ug/l < 0.2 LESST ug/l
9 4 2001 .15 mg/1 < 2 LESST ug/1 < 0.2 LESST ug/I
10 1 2001 .09 mg/I < 2 LESST ug/l < 0.2 LESST ugf
11 5 2001 .11 mg/I < 2 LESST mg/1 < 0.2 LESST mg/I
12 3 2001 .14 mg/I < 2 LESST ug/I < 0.2 LESST ug/l
1 7 2002 .11 mg/I < 2 LESST ug/I < 0.2 LESST ug/I
2 4 2002 .13 mg/I < 2 LESST ug/l < 0.2 LESST ug/I
3 4 2002 .12 mg/I 2. ug/l < 0.2 LESST ug/I
4 1 2002 .159 mg/I < 2 LESST ug/I < 0.2 LESST ug/I
5 6 2002 .07 mg/I < 2 LESST ug/1 < 0.2 LESST ug/I
6 3 2002 .06 mg/I < 2 LESST ug/I < 0.2 LESST ug/I
7 1 2002 .21 mg/I < 2 LESST ug/I < 0.2 LESST ug/l
8 5 2002 .118 mg/1 < 2 LESST ug/l < 0.2 LESST ug/l
9 3 2002 .109 mg/1 5. ug/l < 0.2 LESST ug/I
10 14 2002 .05 mg/l < 2 LESST ug/l < 0.2 LESST ug/l
11 4 2002 < 0.05 LESST mg/1 < 2 LESST ug/l < 0.3 LESST ug/I
12 2 2002 .115 mg/1 2. ug/I < 0.2 LESST ug/l
1 6 2003 .271 mg/1 .017 mg/I < 0.2 LESST ug/I
2 3 2003 .164 mg/I < 2 LESST ug/I < 0.2 LESST ug/I
3 3 2003 .081 mg/I < 2 LESST ug/I < 0.2 LESST ug/I
4 7 2003 .22 mg/I < 2 LESST ug/I < 0.2 LESST ug/I
5 5 2003 .218 mg/I 4. ugll < 0.2 LESST ug/I
6 2 2003 .14 mg/I 4. ug/1 < 0.2 LESST ug/I

•
- ' '
\ \ ` { • •l
-�.r
' •-
ware
5 ``_ \
:)) i
- -
Ir ". I �� I .` I
rj �.
-
V '
\
�
•
.0.1W82 a
/
..--
1'
1
'
1
—W82
�. �'
•
9.7tit
u11
Ii
i
!
�..._'m
j
1
1\, _ },
v
+tiez.
mil, 1'
J[if•-7
a s
�_ • '� ' P
1 r�
W I \ \ 7
•i
_ .,
--
..I t
-[ ,` ors f
J'
M•
'•1�
}'-
-C. '
\
--`
W8211
f _
1
�_I,"--
. _
tea-.
\. / •' ter,
- ��
a�
-
`` ' ..
Di •
- 01.40
' SLUDG
a 15" GRAVITY SEWER: INFLUENT
.-
,:.1—
- -2
�\ �;
' =
/.- /':--:
.//
,
:! .�.
ti/ % I
'(-
.
--
f•• r-r- ti.J,
.wee ,os�,
` ,_ (
�r-`�
;! '��`J
.5, •
iii _ ,,, 1 tl `,..\
I c")I -.._.../ ....- ---.):
/ - -;:- ..-.' . _
\
•
/
-- 1✓ 2�-
'W82
1 `; li'N'r.
1.:
,
1111V
Z ? P
`, r-?.•
,2 7
.--
• • �.11,
/•�
;^%, c__.__

MANUAL
BAR SCREEN
NOTES:
FLOW DIAGRAM
COLUMBUS, N.C.
WASTEWATER TREATMENT PLANT
NPDES NC 0021369
EXTENDED AERATION PROCESS
DESIGN CAPACITY 0.80 MGD
RTN SLUDGE
AERATION
(NOTE 1)
0.8
MGD
SLUDGE
HOLDING
(NOTE 2)
SHEET
PILING
1. FLOATING AERATORS:
1-25 HP (12-18 HRS/DAY)
4-15 HP (6-10 HRS/DAY
2. FLOATING AERATORS
1-25 HP (3-5 HRS/WEEK
1-30 HP (3-5 HRS/WEEK
3. FLOATING AERATORS
1-30 HP (3-5 HRS/WEEK)
SLUDGE
HOLDING
(NOTE 3)
RECIRC.
PUMP
STATION
SLUDGE
0.4
MG
SLUDGE
THICKENING
5-6% D.S.
V
CHLORINATION
0.8
MGD
U.T.
WHITE
OAK
CREEK
2000 GALLON 40 AC
TANKER TRUCK LAND APPLICATION
SITE
3- 8 HR DAYS/WK

NPDES/Non-Discharge Permitting Unit Pretreatment Information Request Form
NPDES OR NONDISCHARGE PERMITTING UNIT COMPLETES THIS PART:
Date of Request :la t,/c, 3
Facility
Tc;;.0 ,N. cT' Cc (1, ...L ht,t,s
Permit#
n.cc Q., ,2!'36`j
Region
fl'N�c
•
Requestor
(ti'j.`/ 1,v,
(2/244,
Pretreatment
Contact
A_D Towns- Keyes McGee (ext. 580)
E-L Towns- Deborah Gore (ext 593)
M-R Towns- Dana Folley (ext. 523)
S-Z Towns- Steve Amigone (ext 592)
t -1, 4
PRETREATMENT UNIT COMPLETES THIS PART: (
Status of Pretreatment Program (circle all that apply) %/j
the facility has no SIU's and does have a Division approved Pretreatment Program that is INACTIVE ^ t�
e acility has no SIU's and does not have a Division approved Pretreatment Program
3) the facility has (or is developing) a Pretreatment Program
3a) is Full Program with LTMP or 3b) is Modified Program with STMP
4) the facility MUST develop a Pretreatment Program - Full Modified
5) additional conditions regarding Pretreatment attached or listed below
Flow Permitted Actual
% Industrial
STMP time frame:
most recent
next cycle
% Domestic Al —
L
(S)
T
MP
Pollutant
Check List
POC due to
NPDES/Non-
Discharge
Permit Limit
Required
by EPA'
Required by
503 Sludge—
POC due to SIU"'
Site specific POC (Provide Explanation)""
STMP
Frequency
effluent
V
at
LTMP
Frequency at
effluent
BOD
I
4
Q M
TSS
4
Q M
NH3
4
Q M
Arsenic
4
Q M
ti'
Cadmium
,1
4
Q M
4
Chromium
I
J
4
Q M
d
Copper
I
d
4
Q M
Cyanide
4
Q M
d
Lead
1 'Y
4
Q M
Mercury
4
Q M
Molybdenum
4
Q M
d
Nickel
d
4
Q M
Silver
4
Q M
Selenium
4
Q M
d
Zinc
v
4
Q M
4
Q M
4
Q M
4
Q M
4
Q M
4
Q M
4
Q M
'Always in the LTMP
"On y in the LTMP if the POTW land appl es sludge
'-' Only in LTMP while the SIU is connected to the POTW
'-'- Only in LTMP when the pollutant is a specific concern to the POTW (ex•Chlondes for a POTW wno accepts Textile waste)
Q= Quarterly
M=Monthly
Comments:
version 8/23/00
q(y
NPDES_PretreaLment. request.torm.010513
Revised: .August 4.2000