NC0025861_Permit Issuance_20050107

OF N -r Michael F. Easley, Governor
QG William G. Ross Jr., Secretary N.
r r North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
January 7, 2005
Mr. Ben Blackburn, City Manager
City of Lowell
101 West First Street
Lowell, North Carolina 28098
Subject: Issuance of NPDES Permit N00025861
City of Lowell WWII'
Gaston County
Dear Mr. Blackburn:
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 November 10,
2004.
This permit includes a TRC limit that will take effect on February 1, 2005.
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 Dawn Jeffries at telephone
number [phone], extension 595.
Sincerely,
ORIGINAL SIGNED BY
Mark McIntire
Alan W. Klimek, P.E.
Y8 0::V.
cc: Central Files y ,
Mooresville Regional Office/Water Quality Section
NPDES Unit 1
NorthCarolina
Naturally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet h2o.enr.state.nc.us 512 N. Salisbury St. Raleigh, NC 27604 FAX [phone]
An Equal opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper

Permit NC0025861
STAfl 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 provisions 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
City of Lowell
is hereby authorized to discharge wastewater from a facility located at the
Lowell WWTP
NCSR 2380
Gaston County
to receiving waters designated as the South Fork Catawba River in the Catawba 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 February 1, 2005.
This permit and authorization to discharge shall expire at midnight on January 31, 2010.
Signed this day January 7, 2005.
ORIGINAL SIGNED BY
Mark McIntire
Alan W. Klimek P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit N0D025861
SUPPT F.MENT 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 City of Lowell is hereby authorized to:
1. Continue to operate an existing 0.6 MGD contact stabilization wastewater treatment facility
with the following components:
• Influent pump station
• Mechanical bar screen
• Contact aeration basin
• Reaeration basin
• Final clarifier
• Chlorine gas disinfection
• Sulfur dioxide dechlorination system
• Aerobic digester
• Sludge drying beds
• Flow measuring device
This facility is located in Lowell off NCSR 2380 at the Lowell WWTP in Gaston County.
2. Discharge from said treatment works at the location specified on the attached map into the
South Fork Catawba River, classified WS-V waters in the Catawba River Basin.

USGS Quad Name: Mount Holly
Receiving Stream: S. Fork Catawba River
Stream Class: WS-V
Subbasin: Catawba - 030835
Lat.: 35°16'10"
Long.: 81°0455"
N
orth
SCALE 1:24,000

Permit NOD025861
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this 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
Average
Weekly
Average
Daily
Max
Measurement
Frequency
Sample
Type
Sample Location
Flow
0.6 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day (20°C) 1
30.0 mg/L
45.0 mg/I
3IVVeek
Composite
Influent and Effluent
Total Suspended Residues
30.0 mg/L
45.0 mg/I
3/Week
Composite
Influent and Effluent
NH3 as N
3/Week
Composite
Effluent
Fecal Coliform (geometric mean)
200 / 100 ml
400/100 ml
3/Week
Grab
Effluent
Total Residual Chlorine
28 pg/I
3/Week
Grab
Effluent
Temperature (°C)
3Mleek
Grab
Effluent
Total Nitrogen (NO2+NO3+TKN)
Quarterly
Composite
Effluent
Total Phosphorus
Quarterly
Composite
Effluent
pH2
3/Week
Grab
Effluent
Chronic Toxicity3
Quarterly
Composite
Effluent
Footnotes:
1. The monthly average effluent BOD and Total Suspended Residue concentrations shall not exceed 15% of the respective influent
values (85% removal).
2. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
3. Chronic Toxicity (Cerialaphraa) at 0.74%: February, May, August & November (See A.(2.)).
There shall be no discharge of floating solids or visible foam in other than trace amounts.

•
Permit NO3025861
A. (2.) CHRONIC TOXICITY PERMIT LIMIT - Quarterly
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ce►icdaphnia
dubia at an effluent concentration of 0.74%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North Carolina
Ceriadapinua 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 February, May, August and November. 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: North Carolina Division of Water Quality
Environmental Sciences Section
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 chemicaVphysical 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 maybe 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.

NC DENR / DWQ / NPDES Unit
FACT SHEET FOR PERMIT DEVELOPMENT
[phone], extension 595
Copies of the following are attached to provide further information on the permit development:
• Draft Permit i
NPDES Recommendation by: G1�—/ Date: /--Z.S =v
Regional Office Comments
we af'J`�/Z Aiv G0r127c5✓/5 Z -7-7*
Regional Recommendation by: b. / 2 Date: /2s4
Reviewed Bv:
Regional Supervisor: Date:
NPDES Unit Date:
Page 2 of 2

NC DENR / DWQ / NPDES Unit
FACT SHEET FOR PERMIT DEVELOPMENT
`Facility Information _ _'
Facility:
City of Lowell WWTP
NPDES Permit
NC0025861
Permitted Flow
0.6 MGD
Facility Class
III
Type of Waste
10013/0 domestic wastewater
Permit Status
Renewal
County
Gaston
Regional Office
Mooresville
Receiving Stream
South Fork Catawba River
3002 (cfs)
NR
Stream Classification
WS-V
Average flow (cfs)
800
River Basin / Subbasin
Catawba / 030835
Drainage area (miles2)
630
303(d) listed stream?
No
IWC
0.74%
Summer 7Q10 (cfs)
124
Primary SIC code
4952
Winter 7Q10 (cfs)
226
USGS Topographic Quad
F14SE
Changes Incorporated into Permit Renewal
.; .hair sed ChactgW
Add Total Residual Chlorine Limit
Remove Special Condition for
Wastewater Mana • ement Plan
Parameters Affected
TRC
N/A
**Wadi s fgiiViiari64 -:
Division Poli
completed
Summary
The subject facility is a municipal WWTP discharging 100% domestic waste. The facility was last permitted in 2002.
The Mooresville Regional Office submitted a staff report on September 13, 2004 recommending renewal of this
permit
Since the last renewal, there have been several enforcement actions against the permittee. The monthly limit for Total
Suspended Solids has been exceeded four times and the weekly average limit for TSS has been exceeded 12 times; also
the fecal coliform weekly average has been exceeded 5 times. Penalties totaling $9,375.00 were assessed for these
violations. All of these violations occurred between January 2002 and July 2003. There have been no violations since
August 2003.
Per Division Policy, a TRC limit (Daily Max) will be added as the facility uses chlorine for disinfection. No
compliance schedule will be given since the facility already uses dechlorination.
The South Fork Catawba River does not appear on the latest 303(d) list.
Copies of the draft permit will be forwarded to the Aquatic Toxicology Unit and the DEH Regional Engineer in the
Mooresville Regional Office for review.
Proposed Schedule for Permit Issuance
Draft Permit to Public Notice: November 10, 2004
Permit Scheduled to Issue: January 7, 2005
State Contact
If you have any questions on any of the above information or on the attached permit, please contact Dawn Jeffries at:
Page 1 of 2

PUBLIC NOTICE
STATE OF NORTH I
ii
CAROCin�"--
ENVIRONMENTAL MAN-
AGEMENT COMMISSION'
NPDES UNIT
1617 MAIL SERVICE
C
RALEIGENTERH, NC 27699-1617
NOTIFICATION OF IN-
TENT TO ISSUE A
NPDES WASTEWATER
PERMIT ,
On the basis of thorough
staff review and applica-
tions of NC General Statute
143.21, Public law 92-500
and other lawful standards
Gastonia, NC and regulations, the North
Gaston County Carolina Environmental
Management Commission
proposes to issue a Nation-
al Pollutant Discharge I
Elimination System
(NPDES) wastewater dis-
I, Linda Seiboth Legal Advertising Clerk of The Gaston Gazette, do certify that the charge permit the per-
son(s) listed belel ow etfec- r
advertisement of tive 45 days from the pub-
lish date of this notice.
Written comments regard -
PUBLIC NOTICE ing the proposed permit will
NOTIFICATION OF INTENT TO ISSUE be acceptedandays
afterr ththe pubb dlish dateto o1 this
A NPDES WASTEWATER PERMIT notice. All comments re-
ceived prior to that date are
considered in ithe final de-
terminations regarding the
proposed permit. The Di-
rector of me NC Division of
Water Quality may dec: je
to hold a publicmeeting for
Measuring 9.83 Inches appeared in The Gaston Gazette, a newspaper published in the proposed permit should
the Division receive a sig-
nificant degree of public in-
terest.
NOVEMBER 12, 2004 Copies of the draft periTit
L.
if and other supporting infor-
mationL�jon file used to de-
termine conditions present
in the draft permit are avail-
able upon request and pay-
ment of the costs of repro -
Linda Seiboth duction. Mail comments
and/or requests for infor-
mation to the NC Division
of Water Quality at the
above address or call Ms,
Carolyn Bryant at (919)
733-5083, extension 520.
Please include the NPDES
permit number
NC0025861, in any com-
day of
200� munications. 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 to review in-
formation on file.
AFFIDAVIT OF INSERTION OF
ADVERTISEMENT
The Gaston Gazette
Gaston County, Gastonia, NC, in issues:
Sworn to and subscribed before me this
Carla Norris Potter, Notary Public
My Commission Expires September 14, 2008
The City of Lowell in North
Carolina has applied for re-
newal of NPDES Permit
NC0025861 for its Lowell
WWTP in Gaston County.
This facility is permitted to
discharge treated waste-
water to the South Fork Ca-
tawba River in the Catawba
River Basin. Currently, total
residual chlorine is water
quality limited. This dis-
charge may affect future al-
locations in this portion of
the watersheid. a
1C-November 12, 2004

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
December 17, 2004
Mr. Mike Montebello
South Carolina Department of Health and Environmental Control
Bureau of Water
2600 Bull Street
Columbia, South Carolina 29201
Subject: Response to comment letter for
Permit Renewal NG002149t g (�
City of Lowell W\ I P 06ov a
Dear Mr. Montebello:
As you requested, enclosed with this letter is a copy of the draft permit and permit rationale for the City
of Lowell. The final permit is scheduled to be issued January7, 2005.
The Division appreciates your concern that this discharge not contribute to violations of South Carolina
water quality standards, and consideration has been given to this matter in the drafting of this permit.
Given the fact that this discharge is 100% domestic, has an instream waste concentration of less than
1%, and is approximately 12 miles from the state line; we feel that the conditions imposed upon it are
adequate to protect standards in both North Carolina and South Carolina.
If you have any questions or comments concerning this draft permit, feel free to call me at 919-733-5083,
extension 595 or e-mail me at dawn.jeffries@a ncmail.net.
Sincerely,
Enclosure: Draft permit and fact sheet
41.
cc: NPDES Unit
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North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet h2o.enr.state.nc.us 512 N. Salisbury St. Raleigh, NC 27604 FAX [phone]
An Equal opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper

aCARD:
Elizabeth M. Hagood
Chairman
BOARD:
Edwin H. Cooper, III
Mark B. Kent
Vice Chairman
L. Michael Blackmon
Secretary
November 18, 2004
PROMOTE PROTECT PROSPER
C. Ead Hunter, Co
Promoting and protecting the health of the /( and the environment.
Ms. Carolyn yant
NC Divisio of Water Quality
Environ ental Management Commission/NPDES Unit
1617 ail Service Center
Ra Igh, NC 27699-1617
NOV 2 3 200d
NOV 2 3 2004
DENR - WATER QUALITY
POINT SOURCE BRANCH
RE: Notification of Intent to Renew a NPDES Wastewater Permit for the City of Lowell
(NC0025861) dated November 10, 2004.
Dear Ms. Bryant:
l
•
Carl L Brazell
Steven G. Kisner
Geleman F. Buckhouse, MD
We would like to submit comments on the above -proposed NPDES permit renewal,
which would continue the discharge of treated wastewater into the South Fork Catawba River.
According to DHEC monitoring data, the Lake Wylie is impaired by copper levels above
the Mill Creek arm at the end of road S-46-557. South Carolina's standard for copper is 2.9 ug/I.
In addition, Lake Wylie (Crowders Creek arm at SC highways 49 and 274) and the
Catawba River (at South Carolina Highway 21) are impaired by fecal coliform bacteria. South
Carolina's standards for fecal coliform in the Catawba River are "not to exceed a geometric mean
of 200/100m1 based on five day consecutive samples during any 30 day period; nor shall more
than 10% of the total samples examined during any 30 day period exceed 400/100ml."
Please ensure that any permitted activities will not contribute to violations of South
Carolina standards. Please send a copy of the draft permit and permit rationale to Mike
Montebello, South Carolina Department of Health and Environmental Control (DHEC), Bureau of
Water, 2600 Bull St., Columbia, South Carolina 29201. Thank you for considering these
comments when reviewing, revising, and issuing this permit. If you need more information,
please contact Mark Giffin at [phone] or [e-mail] for assistance.
Sincere) ,
Kathy Stecker, Manager
Watersheds and Planning Section
MKS:MAG
cc: Mark Giffin
Rheta Geddings
Mike Montebello
Gina Fonzi, EPA
SOUTH CAROLINA DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL
2600 Bull Street • Columbia, SC 29201 • Phone: [phone] • wwwscdhccgov

MEMORANDUM
To:
November 10, 2004
Britt Setzer
NC DENR / DEH / Regional Engineer
Mooresville Regional Office
From Dawn Jeffries
NPDES Unit
Subject: Review of Draft NPDES Permit NC0025861
Lowell WVI'P
Michael F. Easley, Govemor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
NOV 1 8 2004
DENR - WATER QUALITY
POINT SOURCE BRANCH
Please indicate below your agency's position or viewpoint on the draft permit and return this form by
December 17, 2004. If you have any questions on the draft permit, please contact me at telephone number
[phone], extension 595 or via e-mail at [e-mail].
RESPONSE: (Check one)
X
Concur with the issuance of this permit provided the facility is operated and maintained properly, the stated
effluent limits are met prior to discharge, and the discharge does not contravene the designated water quality
standards.
Concurs with issuance of the above permit, provided the following conditions are met:
Opposes the issuance of the above permit, based on reasons stated below, or attached:
Signed Date: /l/l5/(
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-161 7 - TELEPHONE [phone]/FAX [phone]
VISIT US ON THE WEB AT http://h2o.enr.state.nc.us/NPDES

Draft Permit Reviews (3)
,•
Subject: Draft Permit Reviews (3)
Date: Tue, 16 Nov 2004 11:55:31 -0500
From: John Giorgino <[e-mail]>
To: Dawn Jeffries <[e-mail]>
Hi Dawn, I have reviewed the following permits:
NC Outward Bound School (NC0040754)
City of Lowell (N00025861)
Roanoke Rapids Mill (NC0000752)
Roanoke Rapids does not contain tyhe new EPA testing language (please
see the other peLutits for the correct page). Also, the chr tox pages
has us listed as the Environmental Sciences "Branch". We are now a
"section". I think Kevin Bowden sent over a revised page with the
section change. Thanks for sending the drafts over.
-John
1 of 1
11/16/2004 11:59 AM

NC DENR / DWQ / NPDES Unit
FACT SHEET FOR PERMIT DEVELOPMENT
Feciiity Information
Facility:
City of Lowell WWTP
NPDES Permit
NC0025861
Permitted Flow
0.6 MGD
Facility Class
III
Type of Waste
100% domestic wastewater
Permit Status
Renewal
County
Gaston
Regional Office
Mooresville
Receiving Stream
South Fork Catawba River
30Q2 (cfs)
NR
Stream Classification
WS-V
Average flow (cfs)
800
River Basin / Subbasin
Catawba / 030835
Drainage area (miles2)
630
303(d) listed stream?
No
IWC
0.74%
Summer 7Q10 (cfs)
124
Primary SIC code
4952
Winter 7Q10 (cfs)
226
USGS Topographic Quad
F14SE
Changes Incorporated into Permit Renewal
Li Proposed 'Changes
Parameters Affected
`' Basis for chiah e(sil
Add Total Residual Chlorine Limit
TRC
Division Policy
Remove Special Condition for
Wastewater Management Plan
WA
Not requested by RO
Summary
The subject facility is a municipal WWI? discharging 100% domestic waste. The facility -was last permitted in 2002.
Since the last renewal, there have been several enforcement actions against the permittee. The monthly limit for Total
Suspended Solids has been exceeded four times and the weekly average limit for TSS has been exceeded 12 times; also
the fecal coliform weekly average has been exceeded 5 times. Penalties totaling $9,375.00 were assessed for these
violations. All of these violations occurred between January 2002 and July 2003. There have been no violations since
August 2003.
Per Division Policy, a TRC limit (DailyMax) will be added as the facilityuses chlorine for disinfection. No
compliance schedule will be given since the facility already uses dechlorination.
At the time of the last renewal, a permit condition requiring a Wastewater management Plan was included. However,
no record of one having been done can be found. In light of this and the fact that the Mooresville Regional Office
submitted a staff report on September 13, 2004 recommending renewal of the permit (with no mention of the
requirement), this permit is being renewed without the Wastewater Management Plan requirement.
The South Fork Catawba River does not appear on the latest 303(d) list.
Copies of the draft permit will be forwarded to the Aquatic Toxicology Unit and the DEH Regional Engineer in the
Mooresville Regional Office for review.
Proposed Schedule for Permit Issuance
Draft Permit to Public Notice: November 10, 2004
Permit Scheduled to Issue: January 3, 2005
Page 1 of 2

NC DENR / DWQ / NPDES Unit
FACT SHEET FOR PERMIT DEVELOPMENT
State Contact
If you have any questions on any of the above information or on the attached permit, please contact Dawn Jeffries at:
[phone], extension 595
Copies of the following are attached to provide further information on the permit development:
• Draft Permit
NPDES Recommendation by:
Date: /( "id 'U 1
V
Regional Office Comments TO �- SFf�`7 l t0/c,¢%G3 ?Jfg j AJU 4,'',b' "`c
;x -buL6"- ',via 3 ✓ /=02 ?RC G/,v,.— Aropeu,/ 4/964p7
C��P�.✓�� �o �!. o,/ 7/ - o /44 7>94 770-7741. .•
6///174,.�c (T�c) LA/%'/r //ems 0, 51/..¢���`� /o , ,s /9 Ai,77-
Tffz- L/M w/GL /, zfcc/ / D`
Regional Recommendation b
Reviewed By 5,914 ISoU_
Regional Supervisor. f�
NPDES Unit Date:
Date: / -3 D — v 4-
Date: //4'.-
Page 2 of 2

Whole Effluent Toxicity Testing Self -Monitoring Summary
FACILITY REQUIREMENT
September 15, 2004
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Llucolnton WWTP chr lim: 1 I%
NC0025496/001 Begin 11/1/2002 Frequency: Q Mar Jun Sep Dec
County: Lincoln Rcgion: MRO Subbasin: CTB35
PF: 6.0 Special
7Q10: 77.0 IWC(%) 11.0 Order:
+ NonComp:Single
2000 -
2001 -
2002 -
2003 -
2004 -
Pass
Pass
29.7
Pass
Pass,>40
>40
- Pass - - Pas - - NR/Pass
- Fail >30 14.8 Fail 24.5 24.5 14.8
- >33 - - Pas - - Pass
- Pass - Pass - - Pass
- Pau -
Linville Resorts, Inc. chr lim: 7%; if sap to 0.15 chr lim 10% 2000 - - - - - - - - - -
NC0039446/001 Begin 12/1/2000 Frequency: Q Jan Apr Jul Oct + NonComp:Single 2001 Pass - - Pass - - Pass - - Pew
County Avery Region: ARO Subbasin: CTB30 2002 Pass - - Pass - - Pass - - Pap
PF: 0.10 Special 2003 pass - - Pass - - Pass - - Pap
7010: 2.1 IWC(%) 10.0 Order: 2004 Paw - - Pass - - Pau
Lithium Corp chr lim: 78%;pf 0.7 chr lim 80%;pf 0.8 chr lim 82%;pf 0.9 chr li i. 2000 >100 - - >100 - - >100 - - >100
NC0005177/001 Begin: 11/1/2003 Frequency: Q Jan Apr Jul Oct + NonComp:Single 2001 >100 - - >100 - H >100 - >100
County: Gaston Region: MRO Subbasin: CTB37 2002 >100 - - >100 - - H H H H
PF: 0.615 Special 2003 88.3 - - >100 - - 44.2 57 >100 88.3
7Q10: 0.27 IWC(%)78 Order: 2004 88.3 - - >100 - - H
>100
Livingstone Coating Corporation chr lim: 90%
NC0086002/001 Begin 3/1/2004 Frequency:0 Jan Apr Jul Oct
County Mecklenburg Region: MRO Subbasin: CTB34
IT: 0.0216 Special
7010: 0.0 IWC(%) 100 Order:
+ NonConp:Singlc
2000 Pass - - Pass - - Pass - - Pass
2001 Paw - -- Pass - - Pass - - Pass
2002 Pass - -- Pass - - Pass - - Pass
2003 pass - Pass - - Pass - - Pass ---
2004 NR Pass - Pass - - Pass 1
•
Loulo Dreyfus Energy Corp. 24 hr LC50 ac monit ems Rhd (grab)
NC0021971/009 Begin 9/1/2001 Frequency: A
County: Mecklenburg Region: MRO Subbasin: CTB34
PF: VAR Special
7Q10: 0.0 IWC(%) 100 Order:
NonComp:
2000 - 2001 - >1- 00
2002 - >100
2003 -
2004 -
- >100
- >100
Louisburg WWTP chr lim: 13%
NC0020231/001 Begin 5/1/2000 Frequency Q Mar Jun Sep Dec
County: Franklin Region: RRO Subbasin: TAR01
PF: 1.37 Speosi
7010: 14.0 I W C(%) 13 Order:
▪ NonComp:Single
2000 - - Pass - -•• Pass - -- Pass Pass
2001 - - Pass - Pass - - Pass - - Pass
2002 -- - Pass - - Pass - - Pass - - Pass
2003 - - Pass - - Pass - - Pass - - Pass
2004 - - Pass,>26 - - Pass -
Lowell WWTP chr lim: 0.74% 2000 - >100
NC0025861/00l Begin 3/1/2002 Frequency: Q Feb May Aug Nov + NonComp:Singlc 2001 - >100
County: Gaston Region: MRO Subbasin: CTB36 2002 -- >100
PF: 0.6 special
2003 - Pass
7Q10: 124.0 ►WC(%)0.74 Order: 2004 - Pass
Pass
>100
Late
Fail
Pass
Pass
- - >100
>100 - >100
- >3.0 >3.0,Pass
- - Pass
NR/>100
8.8
Pass
Pass
>100
LP Corp - Roaring River WWTP chr lim: 0.68%, PF> 1.0 chr lim: 1.0% y 2000 Paw - - pass - - Pass - - Pass
NC0005266/001 Begin 9/12004 Frequency Q Jan Apr Jul Oct + NonComp:Single 2001 Paw - - Pass - - Pass --- - Pass
County: Wilkes Region: WSRO Subbasin: YADOI 2002 Pass - - Pass - NR/Pass Pass
PF: 1.0 Special 2003 Pass - - Pass - - Pass -- - Pass
7010: 228.0 IWC(%) 0.68 Order: 2004 Pass - - Pass - - Pass
Lucent Technologies, Inc. chr lim: 90%
NC0080853/001 Begin 7/1/2004 Frequency: Q Mar Jun Sep Dec
County. Forsyth Region: WSRO Subbasin: YADO4
PF: 0.302 Special
7010: 0.05 IWC(%) 90 Order.
+ NonComp:Single
2000 - - Pass - Pass - -- Pass -- - Pass Pass
2001 - - Pau - - Pau - - Pass - - Pass
2002 -• - Pau - - Pau - - Pass - - Pass
2003 - - Pass - - Pau - Pass -- - Pass
2004 -- - Pau - - Pass -
Lumberton WWTP chr lim: 21% Y 2000 -- Pass - Pass Pass - - Pass
NC0024571/001 Begin 9/1/2004 Frequency: Q Feb May Aug Nov + NonComp:Single 2001 -- Pass - Pass - Pass - - Pass
County: Robeson Region: FRO Subbasin: LUM51 2002 - Pass - - Pass - - Pass - - Pass
PF: 20 Special 2003 - Pass - - Pass - - Pass - - Pass
7010: 120 IWC(%) 21 Order 200n -- Pass.>42 - - Pass - - Pass
Magellan Selma Terminal 24hr LC50 ac monk epis fthd
NC0052311/001 Begin 3/1/2004 Frequency: A
County: Johnston Region: RRO Subbasin: NEU02
PF: - Special
7Q10: 0.0 IWC(%) 100.0 Order
NonComp:
2000 - - >100
2001 - - >100
2002 - - >100
2003 - - >100
2004 - - 18.2
Y Pre 2000 Data Available
LEGEND:
PERM - Permit Requirement LET = Administrative Letter - Target Frequency = Monitoring frequency: Q. Quarterly; M. Monthly; BM- Bimonthly; SA- Semiannually; A- Annually; OW D- Only when discharging; D- Discontinued monitoring requirement
Begin - First month required 7010 - Receiving stream low flow criterion (cfs) +- quarterly monitoring increases to monthly upon failure or NR Months that testing must occur - ex. Jan, Apr. Jul. Oct NonComp - Current Compliance Requirement
PF - Permitted flow (MGD) IWC%= Instream waste concentration P/F = Pass/Fail rest AC - Acute CHR - Chronic
Data Notation: f - Fathead Minnow; • - Ceriodaphnia 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 reported Facility Activity Status: 1 - Inactive, N - Newly Issued(To construct); H - Active but not discharging; 1-More data available for month in question; = ORC signature needed
28

Re: Lowell WWTP
Subject: Re: Lowell WWTP
Date: Wed, 03 Nov 2004 08:38:23 -0500
From: Jon Risgaard <[e-mail]>
To: Dawn Jeffries <dawn [e-mail]>
That is correct. Thanks for checking.
Jon
Dawn Jeffries wrote:
Jon,
From what I see, Lowell WWTP in Gaston County has no pretreatment
program. Just wanted to verify with you.
Thanks,
Dawn Jeffries
Jon Risgaard
Environmental Engineer
DWQ - PERCS Unit
1 of 1 11/3/2004 10:29 AM

SOC PRIORITY PROJECT: Yes_ No X
To: Permits and Engineering Unit
Water Quality Section
Attention: Carolyn Bryant
Date: September 13, 2004
NPDES STAFF REPORT AND RECOMMENDATION,..,,.....____ -. _
County: Gaston
MRO# 04-70
Permit No. NC0025861
PART I - GENERAL INFORMATION
1. Facility and address: Lowell Wastewater Treatment plant
City of Lowell
101 West First Street
Lowell, North Carolina 28098
DENR - WATER DUALITY
POINT SOURCE BRANCH
i;�
.rgee
2. Date of investigation: September 8, 2004
3. Report prepared by: Samar Bou-Ghazale, Env. Engineer.I
4. Persons contacted and telephone number: Mr. Dan Dougherty, ORC, [phone].
5. Directions to site: From the junction of Highway 7 (McAdenville Rd.) and Power Drive (SR
2380) in east Lowell, travel north on Power Drive approximately 0.45 mile to the intersection
with Saxony Drive. Proceed on Power Dr. approximately 0.2 mile to the wastewater
treatment plant located at the end of the road.
6. Discharge point(s). List for all discharge points:
Latitude: 35° 16' 10" Longitude: 81 ° 04' 55"
Attach a U. S.G. S. map extract and indicate treatment facility site and discharge point on map.
USGS Quad No.: F 14 SE USGS Name: Mount Holly, NC
7. Site size and expansion area consistent with application?
Yes X No_ If No, explain:
8. Topography (relationship to flood plain included): Facilities are not located in the 100-year
flood plain. Slopes range from 7- 10%.

9. Location of nearest dwelling: No dwelling within 1000 feet of the facility.
10. Receiving stream or affected surface waters: South Fork Catawba River.
a. Classification: WS-IV
b. River Basin and Subbasin No.: Catawba 03-08-35
c. Describe receiving stream features and pertinent downstream uses: Source of water
supply for drinking, culinary or food -processing, and Class C uses. The Town of
McAdenville's WWTP is located approximately 1.0 mile downstream.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted: 0.60 MGD (Ultimate Design Capacity)
b. What is the current permitted capacity of the wastewater treatment facility? 0.60
MGD
c. Actual treatment capacity of the current facility (current design capacity)? 0.60 MGD
d. Date(s) and construction activities allowed by previous Authorizations to Construct
issued in the previous two years: N/A.
e. Please provide a description of existing or substantially constructed wastewater
treatment facilities: The existing facility is a 600,000 gpd contact stabilization
wastewater treatment plant consisting of an influent pump station, dual bar
screens/comminutor, a contact aeration basin (diffused), a reaeration basin (diffused),
a final clarifier, a chlorine contact basin (gas), an aerobic digester (diffused), dual
sludge drying beds, instrumented flow measurement (effluent), a dechlorination
system (SO2), and a stand-by power generator.
f. Please provide a description of proposed wastewater treatment facilities: N/A.
g. Possible toxic impacts to surface waters: Chlorine is added to the waste stream.
h. Pretreatment Program (POTWs only): N/A.
2. Residuals handling and utilization/disposal scheme:
Sludge is removed as necessary by Oaks Liquid Waste and transported to a CMUD WWTP for
final disposal. Sludge from the drying beds is transported to a BFI landfill.
3. Treatment plant classification (attach completed rating sheet): Class II (no change ofrating,
Page 2

no rating sheet attached).
4. SIC Code(s): 4952 Wastewater Code(s): 01
Main Treatment Unit Code: 09002
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies
involved (municipals only)? N/A.
2. Special monitoring or limitations (including toxicity) requests: N/A
3. Important SOC, JOC or Compliance Schedule dates: N/A
4. Alternative Analysis Evaluation: N/A
a. Spray Irrigation: Insufficient area.
b. Connect to regional sewer system: There is no regional sewer collection system in the
area.
c. Subsurface: Insufficient area.
d. Other disposal options: None that we are aware.
5. Air quality and/or groundwater concerns or hazardous materials utilized at this facility that
may impact water quality, air quality or groundwater? No known air quality, groundwater
or hazardous materials concerns.
PART IV - EVALUATION AND RECOMMENDATIONS
The Permittee, the Town of Lowell, is applying for renewal of the facility's NPDES
permit to discharge treated domestic wastewater. The treatment plant appeared to be in good
operational condition, and no problems were noted at the time of inspection.
Pending review and approval by P&E, it is recommended that the NPDES Permit for this
facility be reissued.
Page 3

Signature of Repo • ' eparer
�,
Water Qua1j Regional Supervisor
9.7/?
Date
Page 4

Charles H. Weaver
NCDENR / Water Quality / NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
The City of Lowell, NC requests renewal of its NPDES Permit NC0025861.
There have been no changes at the facility since issuance of last Permit.
This package includes three signed Cover Letters, three signed Application Forms,
And three signed Sludge Management Plans.
Any questions may be directed to City Hall @704-824-3518, or the WWTP @
704-477-5514.
Respectfu ours,
Ben Blackburn, City anager
()evt, 1004dhlt—
Dan Dougherty, ORC

FACILITY NAME AND PERMIT NUMBER:
City of Lowell, NC0025861
Renewal
Catawba
2A NPDES FORM 2A APPLICATION OVERVIcAN
NPDES
APPLICATION OVERVIEW
Form 2A has been developed in a modular format and consists of a "Basic Application Information" packet
and a "Supplemental Application Information" packet. The Basic Application Information packet is divided
into two parts. All applicants must complete Parts A and C. Applicants with a design flow greater than or
equal to 0.1 mgd must also complete Part B. Some applicants must also complete the Supplemental
Application Information packet. The following items explain which parts of Form 2A you must complete.
BASIC APPLICATION INFORMATION:
A. Basic Application Information for all Applicants. All applicants must complete questions A.1 through A.B. A treatment works
that discharges effluent to surface waters of the United States must also answer questions A.9 through A.12.
B. Additional Application information for Applicants with a Design Flow = 0.1 mgd. Alt treatment works that have design flows
greater than or equal to 0.1 million gallons per day must complete questions 8.1 through 8.6.
C. Certification. At applicants must complete Part C (Certification).
SUPPLEMENTAL APPLICATION INFORMATION:
D. Expanded Effluent Testing Data. A treatment works that discharges effluent to surface waters of the United States and meets
one or more of the following criteria must complete Part D (Expanded Effluent Testing Data).
1. Has a design flow rate greater than or equal to lmgd,
2. Is required to have a pretreatment program (or has one in place), or
3. Is otherwise required by the permitting authority to provide the information.
E. Toxicity Testing Data. A treatment works that meets one or more of the following criteria must complete Part E (Toxicity Testing
Data)
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program (or has one in place), or
3 Is otherwise required by the permitting authority to submit results of toxicity testing.
F. Industrial User Discharges and RCRA/CERCLA Wastes. A treatment works that accepts process wastewater from any
significant industrial users (SIUs) or receives RCRA or CERCLA wastes must complete Part F (Industrial User Discharges
and RCRA/CERCLA Wastes). SIUs are defined as:
1. All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal Regulations (CFR) 403.6 and
40 CFR Chapter I, Subchapter N (see instructions); and
2. Any other industrial user that.
a. Discharges an average of 25,000 gallons per day or more of process wastewater to the treatment works (with certain
exclusions), or
b Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic or organic
capacity of the treatment plant; or
c. Is designated as an SIU by the control authority.
G. Combined Sewer Systems. A treatment works that has a combined sewer
Systems).
ALL APPLICANTS MUST COMPLETE PAR'
North Carolina Rural Water Association, Inc.
P.O.BOX 540
WELCOME, NORTH CAROLINA'27374
Serving wafer and wastewater systems since 1976.
FRED SUMMERS
Wastewater Tcclinician
1VWW.NCRWA.COM
Office
Fax [phone]
n•n ( 91 8125119

FACILITY NAME AND PERMIT NUMBER:
City of Lewd!, NC0025861
Renewal
'BASIC APPLICATION tNFOR ATION•
Catawba
PART A. BASIC APPU A'11OU iNFtORMAT{O. N FOR ALL APPLIGANTT
All treatment works must complete questions A. t through A.8 of this Basic Application Information Packet.
A.1. Facility Information.
Facility Name
Mailing Address
Contact Person
Title
Telephone Number
Facility Address
(not P.O. Box)
City of Lowell
101 West First Street
Lowell North Carolina 28098
Dan Douoherly
ORC
[phone]
98 Saxony Drive
Lowell,14orth Carolina 28098
A.2. Applicant Information. If the applicant is different from the above, provide the following:
Applicant Name City of Lowell
Mailing Address 101 West First Street
Contact Person
Title
Telephone Number
Lowell. North Carolina 28098
Ben T. Blackburn
City Manager
[phone]
Is the applicant the owner or operator (or both) of the treatment works?
XXX❑ owner 0 operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
❑ facility ❑XXX applicant
A.3. Existing Environmental Permits. Provide the permit number of any existing environmental permits that have been issued to the treatment works
(include state -issued permits).
NPDES
UIC
RCRA
NC0025861
PSD
Other
Other
A.4. Collection System Information. Provide information on municipalities and areas served by the facility. Provide the name and population of each
entity and, if known, provide information on the type of collection system (combined vs. separate) and its ownership (municipal, private, etc.).
Name Population Served Type of Collection System Ownership
City of Lowell 2,661 Sanitary/Gravity Municipal
Total population served 2,661

FACILITY NAME AND PERMIT NUMBER:
City of Lowell, NC0025861
A.5. Indian Country.
a. Is the treatment works located in Indian Country?
❑ Yes X❑ No
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
b. Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from (and eventually flows
through} Indian Country?
0 Yes X❑ No
A.6. Ftow. Indicate the design flow rate of the treatment plant (i.e., the wastewater flow rate that the plant was built to handle). Also provide the
average daily flow rate and maximum daily flow rate for each of the last three years. Each year's data must be based on a 12-month time period
with the 12rh month of "this year" occurring no more than three months prior to this application submittal.
a. Design flow rate .600 mgd
b. Annual average daily flow rate
Two Years Ago2002
Last Year2003 This Year2004
.2556 .3236 .277
c. Maximum daily flow rate .896 1.858 .746
A.7. Collection System. Indicate the typo(s) of collection system(s) used by the treatment plant. Check all that apply. Also estimate the percent
contribution (by miles) of each.
X0 Separate sanitary sewer 100
❑ Combined storm and sanitary sewer
A.8. Discharges and Other Disposal Methods.
a. Does the treatment works discharge effluent to waters of the U.S.?
XX❑ Yes 0 No
If yes, list how many of each of the following types of discharge points the treatment works uses:
i. Discharges of treated effluent 1
ii. Discharges of untreated or partially treated effluent 0
iii. Combined sewer overflow points
iv. Constructed emergency overflows (prior to the headworks) 0
v. Other 0 0
b. Does the treatment works discharge effluent to basins, ponds, or other surface impoundments
that do not have outlets for discharge to waters of the U.S.? 0 Yes
If yes, provide the following for each surface impoundment:
Location: n/a
XXD No
Annual average daily volume discharge to surface impoundment(s)
Is discharge 0 continuous or CI intermittent?
c. Does the treatment works land -apply treated wastewater?
If yes, provide the following for each land application site:
Location: n/a
0
❑ Yes
mgd
X❑ No
Number of acres: n/a
Annual average daily volume applied to site:
Is land application 0 continuous or
n/a mgd
❑ intermittent?
d. Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works?
XX❑ Yes ❑ No

FACILITY NAME AND PERMIT NUMBER:
City of Lowell, NC0025861
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
e.
If yes, describe the mean(s) by which the wastewater from the treatment works is discharged or transported to the other treatment works
(e.g., tank truck. pipe).
Tank Truck
If transport is by a party other than the applicant, provide:
Transporter Name Oaks Liquid Waste
Mailing Address 8531 Old Dowd Rd..
Charlotte. North Carolina 28214
Contact Person Ronnie Oaks
Title Owner
Telephone Number 0041_391-2392
For each treatment works that receives this discharge provide the
following:
Name McAlpine Creek/CMUD or Irwin Creek/CMUD
Mailing Address 4009 Westmont Dr.
Charlotte. North Carolina 28217
Contact Person Ronnie Oaks
Title Hauler/Owner/Operator W00014843
Telephone Number [phone]
If known, provide the NPDES permit number of the treatment works
Provide the average daily flow rate from the treatment works into
Does the treatment works discharge or dispose of its wastewater
in A.8. through A.8.d above (e.g., underground percolation, well
If yes, provide the following for each disposal method:
that receives this discharge. NC0024945
the receiving facility. 1.027 gals/day
in a manner not included
injection): XX❑ Yes ❑ No
Grinding landfill.
Description of method (including location and size of site(s) if applicable):
BFI/CWS , land fill of drying bed sludge/air dried. Transport to BFI
Annual daily volume disposed by this method: 96 dry/tons/vr./365days= .263 dry tons/day....est.
Is disposal through this method 0 continuous or XX❑ intermittent?

FACILITY NAME AND PERMIT NUMBER:
City of Lowell, NC0025861
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
WASTEWATER DISCHARGES:
If you answered "Yes" to question A.B.a, complete questions A.9 through A.12 once for each outfall (including bypass points) through
which effluent is discharged. Do not include information on combined sewer overflows in this section. If you answered "No" to question
A.8_a, go to Part B "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd."
A.9. Description of Outfall.
a. Outfall number OQ1
b. Location City of Lowell 28098
(City or town, if applicable)
Gaston
(County)
35 16'10"
(Zip Code)
North Carolina
(State)
81 04'55"
(Latitude) (Longitude)
c. Distance from shore (if applicable) <10 feet ft.
d. Depth below surface (if applicable) rn/a ft.
e. Average daily flow rate .3162 mgd
f. Does this outfall have either an intermittent or a periodic discharge? ❑ Yes X❑ No (go to A.9.g.)
If yes, provide the following information:
Number f times per year discharge occurs:
Average duration of each discharge:
Average flow per discharge: mgd
Months in which discharge occurs:
g. Is outfa)t equipped with a diffuser ❑ Yes XD No
A.10. Description of Receiving Waters.
a. Name of receiving water South Fork River
b. Name otwatetshed (if known) Catawba
United States Soil Conservation Service 14-digit watershed code (if known):
c. Name of State Management/River Basin (if known): Catawba
United States Geological Survey 8-digit hydrologic cataloging unit code (if known):
d. Critical low flow of receiving stream (if applicable)
acute n/a cfs chronic n/a cfs
e. Total hardness of receiving stream at critical low Bow (if applicable): mg/I of CaCO3

FACILITY NAME AND PERMIT NUMBER:
City of Lowell, NC0025861
PERMIT ACTION REQUESTED: I RIVER BASIN:
Renewal Catawba
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
❑ Primary X❑ Secondary
❑ Advanced 0 Other. Describe:
b. Indicate the following removal rates (as applicable):
Design BOD5 removal or Design CBOD5 removal >85 %
Design SS removal >85 %
Design P removal rile %
Design N removal n/a %
Other n/a %
c. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe:
Chlorination
1f disinfection is by chlorination is dechlorination used for this outfall? X❑ Yes 0 No
Does the treatment plant have post aeration? 0 Yes X❑ No
A.12. Effluent Testing Information. All Applicants that discharge to waters of the US must provide effluent testing data for the following
parameters. Provide the indicated effluent testing required by the permitting authority for each otrtfall through which effluent is
discharged. Do not include information on combined sewer overflows in this section. All information reported must be based on data
collected through analysis conducted using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of
40 CFR Part 136 and other appropriate QA/QC requirements for standard methods for analyles not addressed by 40 CFR Part 136. At a
minimum, effluent testing data must be based on at least three samples and must be no more than four and one-half years apart.
Outfall number: 001
PARAMETER
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
Value
Units
Value
Units
Number of Samples
pH (Minimum)04/11
6.3
s.u.
pH (Maximum)04/03
6.9
s.u.
Flow Rate
.3127
MGD
.3127
MGD
1 T/monthly/avg.
Temperature (Winter)2003
17.27
Celsius
18.5
Celsius
7mos.
Temperature (Summer)2003
21.43
Celsius
17.93
Celsius
5mos.
' For pH please report a minimum and a maximum daily value
POLLUTANT
MAXIMUM DAILY
DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL MLlMDL
Conc.
Units
Conc.
Units
Number of
Samples
METHOD
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN
DEMAND (Report one)
BOD5
28.4
Mg/1
12.25
Mg/1
16mos/avg
EPA405.1
CBOD5
FECALCOLIFORM (4/21/04)
2400
MPN
8.85
MPN
16mos/avg
SM9222-D
TOTAL SUSPENDED SOLIDS (TSS)
(01/30/04)
844
Mg/1
9
25.45
M /1
9
16mos/aV 9
EPA160.2
END OF PART A.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE

FACILITY NAME AND PERMIT NUMBER: 1 PERMIT ACTION REQUESTED:
City of Lowell, NC0025861 Renewal
RIVER BASIN:
Catawba
BASIC APPLICATION INFORMATION
PART B. ADDITIONAL APPLICAT(ON.INFORMATION FOR APPLICANTS WITH A DESIGN FLOW GREATER THAN OR'
EQUAL TO 0.1 MGD (100,000 gallons per day). J
All applicants with a design flow rate = 0.1 mgd must answer questions B.1 through B.S. All others go to Part C (Certification).
B.1. inflow and infiltration. Estimate the average number of gallons per day that flow into the treatment works from
<10 000/dry weather < 3% 47,000/wet weather<16 % gpd
inflow and/or infiltration.
liners are in place were
Briefly explain any steps underway or planned to minimize inflow and infiltration.
Smoke testing has been conducted to identify I&I. Repairs to system are ongoing. Manhole
Needed to prevent excessive inflow.
8.2. Topographic Map. Attach to this application a topographic map of the area extending at least one mile beyond facility property boundaries. This
map must show the outline of the facility and the following information. (You may submit more than one map if one map does not show the entire
area.)
a. The area surrounding the treatment plant, including all unit processes.
b. The major pipes or other structures through which wastewater enters the treatment works and the pipes or other stuctures through which
treated wastewater is discharged from the treatment plant. Include outfalls from bypass piping, if applicable.
c. Each well where wastewater from the treatment plant is injected underground.
d. Welts, springs, other surface water bodies, and drinking water wells that are: 1) within 'Y. mile of the property boundaries of the treatment
works, and 2) fisted in public record or otherwise known to the applicant.
e. Any areas where the sewage sludge produced by the treatment works is stored, treated, or disposed.
f. If the treatment works receives waste that is classified as hazardous under the Resource Conservation and Recovery Act (RCRA) by truck, rail,
or special pipe, show on the map where the hazardous waste enters the treatment works and where it is treated, stored, and/or disposed.
B.3. Process Flow Diagram or Schematic. Provide a diagram showing the processes of the treatment plant, including all bypass piping and all
backup power sources or redunancy in the system. Also provide a water balance showing all treatment units, including disinfection (e.g.,
chlorination and dechlorination). The water balance must show daily average flow rates at influent and discharge points and approximate daily flow
rates between treatment units. include a brief narrative description of the diagram.
B.4. Operation/Maintenance Performed by Contractor(s).
Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works the responsibility of a
contractor? XXX❑ Yes ❑ No
if yes. list the name, address, telephone number, and status of each contractor and describe the contractor's responsibilities (attach additional
pages if necessary).
Name: Daniel Dougherty
Mailing Address 101 West First Street
Lowell. North Carolina 28098
Telephone Number: [phone]
Responsibilities of Contractor: ORC
B.5. Scheduled improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or
uncompleted plans for improvements that wilt affect the wastewater treatment, effluent quality, or design capacity of the treatment works. If the
treatment works has several different implementation schedules or is planning several improvements, submit separate responses to question B.5
for each. (If none, go to question B.6.)
a. List the outfall number (assigned in question A.9) for each outfall that is covered by this implementation schedule
001
b. Indicate whether the planned improvements or implementation schedule are required by local, State, or Federal agencies.
0 Yes X❑ No

FACILITY NAME AND PERMIT NUMBER:
City of Lowell, NC0025861
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
c. If the answer to B.5.b is "Yes," briefly describe, including new maximum daily inflow rate (if applicable).
d. Provide dates imposed
applicable. Fos improvements
applicable. Indicate
Implementation Stage
- Begin Construction
- End Construction
- Begin Discharge
• Attain Operational
e. Have appropriate
Describe briefly:
by any compliance schedule
planned independently
dates as accurately as possible.
Level
permits/clearances concerning other
or any actual dates of completion for the implementation steps fisted
of local. State. or Federal agencies, indicate planned or actual completion
Schedule Actual Completion
MM/AD/YYYY MM/DD/YYYY
below, as
dates, as
Yes 0 No
/ / / /
I I I I
/ / / /
I 1 I /
Federal/State requirements been obtained? tJ
B.6. EFFLUENT TESTING DATA (GREATER THAN 0.1 MGD
Applicants that discharge to waters of the US must
effluent testing required by the permitting authority
on combine sewer overflows in this section. All information
using 40 CFR Part 136 methods. In addition, this data
QA/QC requirements for standard methods for analytes
based on at least three pollutant scans and must be
Outfall Number: 001
ONLY).
provide effluent testing data for the following parameters. Provide
for each outfall through which effluent is discharged. Do not include
the indicated
information
conducted
other appropriate
data must be
reported must be based on data collected through analysis
must comply with QA/QC requirements of 40 CFR Part 136 and
not addressed by 40 CFR Part 136. At a minimum effluent testing
no more than four and on -half years old.
POLLUTANT
MAXIMUM DAILY
DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METH00
ML/MDL
Coate.
Units
Conc.
Units
Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA (as N) 18.11
Mg/I
9.3
Mg/I
16mos*4
EPA50.1
CHLORINE (TOTAL
RESIDUAL, TRC)
<50
Ugn
<50
Ug/l
16mos'4
DPD/HACH2O10
DISSOLVED OXYGEN
No limit
TOTAL KJELDAHL
NITROGEN (TKN)
19.3
Mg/I
12.77
Mgi1
2
EPA351.2
NITRATE PLUS NITRITE
NITROGEN
0.42
Mg/I
n/a
Mg/1
2
EPA353.2
OIL and GREASE
No limit
PHOSPHORUS (Total)11/03
4.28
Mg/I
2.58
Mg/I
5
EPA365.4
TOTAL DISSOLVED SOLIDS
(TDS)
No limit
OTHER
END OF PART B.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE
OF FORM 2A YOU MUST COMPLETE
WHICH OTHER PARTS
1
1

FACILITY NAME AND PERMIT NUMBER:
City of Lowell, NC0025861
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba
BASIC APPLICATION INFORMATION
PART C. CERTIFICATION
All applicants must complete the Certification Section. Refer to instructions to determine who is an officer for the purposes of this
certification. All applicants must complete all applicable sections of Form 2A, as explained in the Application Overview. Indicate below which
parts of Form 2A you have completed and are submitting. By signing this certification statement, applicants confirm that they have reviewed
Form 2A and have completed all sections that apply to the facility for which this application is submitted.
Indicate which parts of Form 2A you have completed and are submitting:
XXXL} Bat> Application Information packet
Supplemental Application Information packet:
❑ Part D (Expanded Effluent Testing Data)
xxx❑ Part E (Toxicity Testing: Biomonitoring Data)
❑ Pat F (tndustriat User Discharges and RCRNCERCLA Wastes)
❑ Part G (Combined Sewer Systems)
ALL APPLICANTS MUST COMPLETE THE FOLLOWING CERTIFICATION.
I certify under penalty of law that this document and ail attachments were prepared under my direction or supervision in accordance with a
P.-
designed to assure that qualified personnel property gather and evaluate the information submitted. Based on my inquiry of the person
manage the system or those persons directly responsible for gathering the information, the information is, to the best of my knowle''
accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility •
for knowing violations.
Name and official title
Signature
Telephone number
Date signed
(7041 824-3518
Upon request of the permitting authority, you must submit any other information necessary to assure wastewater treatmr
works or identify appropriate permitting requirements.
le)!
oPJ
SEND COMPLETED FORMS TO:
NCDENR! DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617

FACILITY
SUPPLEMENTAL
PART
POTWs
facility's
required
•
•
•
If no biomonitoring
coin • lete.
NAME AND PERMIT NUMBER:
CITY OF LOWELL. NC0025861
PERMIT
ACTION REQUESTED:
RENEWAL
RIVER BASIN:
CATAWBA
APPLICATION INFORMATION
E. TOXICITY TESTING DATA
meeting one or more of the following criteria must provide the results
discharge points: 1) POTWs with a design flow rate greater than or
to have one under 40 CFR Part 403); or 3) POTWs required by the
At a minimum, these results must include quarterly testing for a 12-month
species), or the results from four tests performed at least annually in
show no appreciable toxicity, and testing for acute and/or chronic toxicity,
information on combinod sewer overflows in this section. All information
using 40 CFR Part 136 methods. In addition, this data must comply
requirements for standard methods for analytes not addressed by 40
In addition, submit the results of any other whole effluent toxicity tests
conducted during the past four and one-half years revealed toxicity,
toxicity reduction evaluation, if one was conducted.
If you have already submitted any of the information requested in Part
requested in question E.4 for previously submitted information. if EPA
If test summaries are available that contain all of the information requested
data is required, do not complete Part E. Refer to the Application
of whole effluent toxicity tests for acute or chronic toxicity for each of the
equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
permitting authority to submit data for these parameters.
period within the past 1 year using multiple species (minimum of two
the four and one-half years prior to the application, provided the results
depending on the range of receiving water dilution. Do not include
reported must be based on data collected through analysis conducted
with QAIQC requirements of 40 CFR Part 136 and other appropriate QA/QC
CFR Part 136.
from the past four and one-half years If a whole effluent toxicity test
provide any information on the cause of the toxicity or any results of a
E, you need not submit it again. Rather, provide the information
methods were not used, report the reasons for using alternate methods.
below, they may be submitted in place of Part E.
Overview for directions on which other sections of the form to
E.1. Required Tests.
Indicate the number of whole effluent
40 chronic ❑ acute
E.2. Individual Test Data. Complete the
column per test (where each species
Report dates used as test number.
toxicity tests conducted in the past four and one-half years.
following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
constitutes a test). Copy this page if
Test number: 6/26/01
more than three tests are being reported.
Test number: 12/14/01
Test number: 8/7/02
a.
Test information.
Test Species & test method number
I Ceriodaphnia Dubia
Ceriodaphnia Dubia
Phase I! Chronic
Ceriodaphina
Age at initiation of test
Outfall number
001
001
001
Dates sample collected
6/19/01
12/17/01
7/29/02-8/07/02
Date test started
6/19/01
12/14/01
7/29/02
Duration
24
24
120
b. Give toxicity test methods followed.
Manual title LC50/Acute Toxicity Test
LC50/Acute Toxicity Test
Phase I{ Chronic
Ceriodaphina
Edition number and year of publication
Page number(s)
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
Flow Proportioned
Flow Proportioned
Flow Proportioned
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection/dechlorrnation:
XX
XX
XX

FACILITY NAME AND PERMIT NUMBER:
CITY OF LOWELL, NC0025861
PERMIT ACTION REQUESTED:
RENEWAL
RIVER BASIN:
CATAWBA
Test number: 6126101 Test number: 12114/01 Test number: 8/07102
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
EFFLUENT
EFFLUENT
EFFLUENT
f. For each test, include whether the test was intended to assess chronic toxicity. acute toxicity. or both
Chronic toxicity
XX
XX
XX
Acute toxicity
g. Provide the type of test performed.
Static
XX
XX
Static -renewal
XX
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
XX
XX
XX
Receiving water
i. Type of dilution water. If salt water, specify "natural" or type of artificial sea salts or brine used.
Fresh water
XX
XX
XX
Salt water
I. Give the percentage effluent used for ail concentrations in the test series.
0,6,25,12.5,25,50,100%
0,625,12.5,25,50,100%
.18,.37,.74,1.5,3.0%
k. Parameters moasured during the test. (State whether parameter meets test method specifications)
pH
YES
YES
YES
Salinity
YES
YES
YES
Temperature
YES
YES
YES
Ammonia
Dissolved oxygen
I. Test Results.
Acute:
Percent survival in 100%
effluent
100 %
100 %
100
LC50
100%
100
95% C.I.
95 %
95 %
%
Control percent survival
%
%
%
Other (describe)

FACILITY NAME AND PERMIT NUMBER:
CITY OF LOWELL, NC0025861
PERMIT ACTION REQUESTED:
RENEWAL
RIVER BASIN:
CATAWBA
Chronic:
NOEC
%
%
>3.0%
ICz5
%
A
Control percent survival
%
%
%
Other (describe)
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
YES
YES
YES
Was reference toxicant test within
acceptable bounds?
What date was reference toxicant test
run (MM/DDfYYYY)?
06/19/01
12/14/01
. 7/29/02
Other (describe)
E.3. Toxicity Reduction Evaluation.
❑ Yes ❑ xx No
Is the treatment works involved in a Tox city Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have
cause of toxicity, within the past four and one-half years, provide the dates
of the results.
Date submitted: 06/26/2001 and 12/14/01 (MMIDD(YYYY)
submitted biomonitoring test information, or information regarding the
the information was submitted to the permitting authority and a summary
recorded in Permit* NC0025861. Two Effluent tests failed
Summary of results: (see instructions)
The City of Lowell has complied with monitoring requirements
during the past 4.5 years. May,2001, control water hardness to high. November. 2001 high residual Chlorine. Test are run
at .764 % dilution.
REFER TO THE APPLICATION
END OF PART E.
OVERVIEW (PAGE 1) TO DETERMINE WHICH
OF FORM 2A YOU MUST COMPLETE.
OTHER PARTS
;1

FACILITY NAME AND PERMIT NUMBER:
CiTY OF LOWELL, NC0025861
PERMIT ACTION REQUESTED:
RENEWAL
RIVER BASIN:
CATAWBA
SUPPLEMENTAL APPL1CAT1ON INFORMATION
PART E. • TOXICITY TESTING DATA
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must include quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application. provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past tour and or,e-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of tho toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested in question E.4 for previously submitted information. If EPA methods were not used, report the reasons for using alternate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests conducted in the past four and one-half years.
40 chronic ❑ acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
column per test (where each species constitutes a test). Copy this page if more than three tests are being reported.
Report dates used as test number. Test number: 11/14/03 Test number: Test number:
a. Test information.
Test Species & test method number
Ceriodaphnia Dubia
Age at initiation of test
Outfall number
001
Dates sample collected
11/14/03
Date test started
Duration
168
b. Give toxicity test methods followed.
Manual title
LC50/Acute Toxicity Test
Edition number and year of publication
Pago number(s)
c. Give the sample collection method(s)
used. For multiple grab samples,
indicate the number of grab samples
used.
24-Hour composite
Flow Proportioned
Grab
d. lrvdicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection/dechlorination:
XX

FACILITY NAME AND PERMIT NUMBER:
CITY OF LOWELL, NC0025861
PERMIT ACTION REQUESTED:
RENEWAL
RIVER BASIN:
CATAWBA
Test number: 6/26/01 Test number: Test number:
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
EFFLUENT
i
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
XX
Acute toxicity
g. Provide the type of test perforated.
Static
Static -renewal
XX
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
XX
Receiving water
i. Type of dilution water. If salt water, specify 'natural* or type of artificial sea salts or brine used.
Fresh water
XX
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
.70%
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH
YES
Salinity
YES
Temperature
YES
Ammonia
Dissolved oxygen
I. Test Results.
Acute:
Percent survival in 100%
effluent
100 %
%
0
LC5o
2.16 g/L
95% C.I.
%
%u
Control percent survival
92 %
%
%
Other (describe)

FACILITY NAME AND PERMIT NUMBER:
CITY OF LOWELL, NC0025861
PERMIT ACTION REQUESTED:
RENEWAL
RIVER BASIN:
CATAWBA
Chronic:
NOEC
IC25
%
%
%
Control percent survival
Other (describe)
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
YES
Was reference toxicant test within
acceptable bounds?
What date was reference toxicant test
run (MMIDDfYYYY)?
11/24/03
Other (describe)
E.3. Toxicity Reduction Evaluation.
❑ Yes 0 xx No
Is the treatment works involved in a Toxicity Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have submitted biomonitoring test information,
cause of toxicity, within the past four and one-half years, provide the dates the information was submitted to the
of the results.
Date submitted: 06/26/2001, 12/14/01,08/07/02.11/24/03 (MM/DD/YYYY)
or information regarding the
permitting authority and a summary
NC0025861. Two Effluent
Summary of results: (see instructions)
The City of Lowell has complied with quarterly monitoring requirements recorded in Permit #7
tests failed during the past 4.5 years. May,2001, control water hardness to high. November, 2001 high residual Chlorine.
Test are run at .764 % dilution.
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH
OF FORM 2A YOU MUST COMPLETE.
OTHER PARTS

Sludge Management Plan 2004-2005
In an effort to develop a comprehensive approach to Sludge Management the City
of Lowell determined to assess the sludge handling capabilities of their treatment plant
located at 98 Saxony Drive Lowell, North Carolina. The purpose of the plan is two fold,
1) the plan will be a budget tool with which the staff can forecast the cost of disposal and
2) the plan will help demonstrate the current sludge yield characteristic which will help
establish the mass balance of the plant.

1.0 DISCRIIPTION OF PROCESS
The City of Lowell owns and operates an activated sludge plant located at 98
Saxony Drive in Lowell, North Carolina, N.P.D.E.S. permit number NC0025861. The
Plant as constructed has been in service since April 3, 1968. The original design mode of
operation was Contact Stabilization. The Plant was upgraded in 1995. At that time the
two original drying beds were replaced by four drying beds. The plant continues to serve
the residential and growing commercial population of Lowell. The plant consists of the
following components. ( Appendix 1)
• Influent Pump Station, (3) pumps
• Mechanical Bar Screen
• Re -aeration Basins
• Contact Aeration Basin
• Final Clarifier
• Chlorine Gas Disinfection
• Sulfur dioxide de -chlorination system
• Aerobic Digester
• Sludge drying beds (4) @ 30' by 50' by 2' upgraded 1995
• Flow measuring device.
The original design allowed for high flows of textile and domestic waste at a capacity of
600,000 gals. per day. The mode of operation at those flows would be contact
stabilization. The re -aeration tank was designed to retain solids a periodic high flows
without washout. The flow scheme is serial. The current permit limits are 30 mg/I BOD
and 30 mg/I TSS. The plant has no Ammonia limit. The plant discharges into the South
Fork River at an average flow of less than 300,000 gals. /day. The current 16 month
average discharge of BOD is 12.25 mg/1. The current 16 month average for TSS is 25.45
mg/I. The plant is subject to high Inflow and Infiltration as recorded in April 2003. High
flow of 1.85 million gallons on April 10`h resulted in solids washout of 566 mg/1 TSS.
2.0 CALCULATED SLUDGE YIELDS
Sludge yields from an activated sludge plant are hard to calculate without
supporting data including influent loading for BOD and TSS lbs. The loading for this
report period (16 months) is assumed to be typical with BOD loaded at .17
lbs./person/day and TSS at 180 mg/I.
Given: Population of 2,661 * .17 lbs,BOD/person/day = 452.37 lbs.BOD/day
Given: TSS @ 180mg/1 * .30 * 8,34 = 450.36 lbs.TSS/day
Gross Total lbs./day = 902.73 lbs./day
After treatment, including Aerobic digestion * 65% or .65=
902.73 * .65 = 586.77 net lbs./day
Adjusted for lbs. lost in effluent discharge
@(25.25mg/ITSS+12.25BOD)*.3 *8.34=
586.77 lbs/day — 93.82 lbs./day= 492.94 adjusted lbs./day
Annual Yield = 492.94 * 365 = 179,9241bs./year or
90 tons/year

•
3.0 COST OF DISPOSAL
Currently the City of Lowell uses two disposal options. Air dried sludge from the
drying beds is hauled to the BFI/CMS landfill in Mecklenburg County, North Carolina.
The cost per ton is $40.00. Additional fees include $250.00 each dumpster full (5
per/year) for the required non -hazardous waste manifest, (appendix 2). If all the sludge
could be air dried the annual cost for disposal would be 90 * $40.00 = $3,600.00. This
cost does not include labor to remove sludge from drying beds or transportation to
disposal or manifest fees. The second option for disposal is hauling liquid sludge via
tanker to McAlpine Creek Wastewater Treatment Plant in Charlotte, North Carolina. The
cost per gallon is $0.07 such that 6,000 gals. * $0.07 = $420.00 per load. If the hauled
liquid sludge is concentrated to 2% solids, (20,000mg/1) then each load would be
equivalent to 1000 dry/lbs. for a cost of $840.00 per/ton. The liquid haul option is used
only when the drying beds are full and inclement weather prevents removal of air dried
sludge. (See fig.3.I) The ideal practice for sludge management would be to remove 6,000
gallons of liquid per week @ 2% solids. The benefit is that the high BOD and NH3 in the
filtrate returned from the drying beds would be eliminated.
(fig.3. 1

4.0 LIMITS TO CURRENT OPTIONS
As noted in fig.3.1 a lot of sand is removed when shoveling the sludge from the
beds. Also, the sludge is not 100% dry as the calculation would require. Sludge is
routinely removed from the drying beds at < 25% dry which requires a calculation factor
of at least 4x. Added to this must be the weight of the sand at 15 to 20 %. Under humid
conditions drying times can exceed 8 weeks. The percolation capacity of the sand beds is
a function of graded sieve size and blinded surface conditions. (fig.4.2)
(fig.4.2) Drying Bed Number 1.
Each drying bed has a fill capacity of 22,440 gals. (30'*50'*2')7.48gals/ft3. If the
concentration of solids is 2%,(20,000mg/1) then each bed can hold 3,743 lbs. or 1.87 tons.
3,7431bs/492.94 lbs./day = 7.593 days net yield. 7.593 * 4 = 30.37 days capacity. Were
condition require 8 weeks drying time there are only 6.5 cycles/year. 6.5 times 30.37 =
197.42 days maximum production at 100% dry content. Total annual production would
not exceed 48.65 dry/tons,[(48.65*$40.00)]*4=$7,784.00**. That leaves 41.34 tons to be
hauled as 2% liquid. At a cost of $34,725.60 = (41.34*$840.00) Cost combined
$7,784.00 + $1,250.00 + 34,725.00 + labor/transportation could exceed $1,000.00
per/week. (Appendix 3, liquid waste manifest)
** No Labor cost added for manual removal. No Cost added for transportation to landfill.
$1250.00 added for non -hazardous waste manifest, required.

5.0 OPERATIONAL CONCERNS
Typical design parameters for activated sludge process with reference to Contact
Stabilization are as follows;
Contact
SRT/days
F/M
Volumetric
MLSS,mg/1
Aer.
Return
Stabilization
Loading
Hours
Ratio
5-15
0.2-
60-75
4000-
.5-1.0
0.5-
0.6
lbs./1000ft3
10,000*
1.5
* Re -aeration Tank
The key to efficient operation of the Wastewater Plant will be solids management.
The N.P.D.E.S. permit requires a minimum removal efficiency of 85% for BOD and
TSS. The current calculated removal efficiency for a 16 month average for TSS is 86%.
The calculated removal for BOD is 93%. These numbers are compliant but leave no room
for error. Solids management in the aerobic digester will require additional attention.
(fig.5.1)
(fig.5. 1) Aerobic Digester
The minimum hydraulic detention time, at 20 degrees Celsius is 10-15 days.
Additional days are required if temperature is < 20 degrees. Oxygen requirements are
1.6-1.9 lbs. /per lbs. VSS destroyed. Residual dissolved 02 must be maintained. Diffused
air in the digester not only supplies 02 but also affords good mixing. Solids should be
routinely monitored for MLVSS and decanted to optimum concentration > 2%. The 503
Sludge Regulations require a 38% volatile reduction in order to meet the PSRP criteria.

•
•
Well digested sludge should de -water quickly on the drying beds. Thicker decanted liquid
sludge (hauled) will help reduce unit cost per ton. At 3% the cost would be $630.50
per/dry ton.
6.0 SUMMARY
Sludge handling cost for the City of Lowell, North Carolina will exceed
$1,000.00 per week. Improved management methods could result in some savings. The
most difficult variable is weather. Rainey weather prevents sludge from drying on the
drying beds and tends to washout solids from the treatment plant. Solids washout will
result in violations of the N.P.D.E.S. permit limit of 30mg/1 TSS. Permit violations will
result in fines, $250.00 for weekly average violations >45 mg/1 and $1,000.00 for
monthly per monthly violation >30 mg/l. TSS violations usually are accompanied by
fecal coliform violation because of higher Chlorine demand. Compliance with the new
N.P.D.E.S. permit limits may be difficult to achieve without some capital improvements
at the plant.
7.0 RECOMMENDATIONS
Sludge dried on the drying beds has the potential of netting reduced cost;
1. Some thought should be given to covering the drying beds with a shelter
in order prevent re -wetting during rain events. An additional benefit will
be reduced inflow / infiltration from this source.
2. The roll off dumpster should be covered to prevent accumulation of
rainwater with the finished product.
3. Improved aeration of the digester could enhance volatile reduction.
4. Sand replacement, as needed, on drying beds could improve performance.
8.0 CONCLUSION
Serious consideration should be given to mechanical sludge thickening. This
would eliminate the need for liquid sludge hauling. A belt filter press on this location
would provide consistent solids management.

Nae4 wo11
Pont Pumping Station Do1a:
Pump No. ! • 835 goI. per ,,in.; Pao AusIllory Drl••
Pump No.2 • 275 - • •
Pump No. 3 • 550 • • •
aii
eia� •� PLANT PUMPING
STATION
TT
lu
TII
II
II
AEROBIC DIGESTER
CHLORINE_
CONTACT
CNA
Oltic• • ob
I
CNorinalor
Room
Compressor Room
3 Comp
Each 40 h.p. , 710 clm.
CONTROL BUILDING
CONTA
AERAT1
No,,ZON
Raw wools
N
CLARIFIER
Fine Bor Stress
By Pos■
3/4- Openings
Porshall Flume •4. /
4
0
Coors* Bor Scr
13/4' Open•ngs
rT
INCOMING CHANNEL
Drive101
41
a wilt"L"
REAE
ZO
ATION
E
CENTRAL TREATMENT UNIT
CAPACITY • 600,000 GAL. PER DAY
BIOLOGICAL LOADING • 1,020 LEIS. BOD PER DAY
CONCRETE CONSTRUCTION
OUTSIDE TANK • 75. 1. D.
CLARIFIER • 35' I.D.
SLUDGE DRYING BEDS
LOWELL, N.G. WASTE TREATMENT PLANT
COMPLETED APRIL 3,1968
HARRISON-FOX a ASSOC., INC.
CONSULTING ENGINEERS
GASTONIA,N.C.

•
r`
t•
Generator Name: CITY OF LOWELL xvlx
Address:
101 WEST FIRST STREET
LWI
Liquid Waste, Inc.
NON -HAZARDOUS WASTE MANIFEST
GENERATOR
Generator Location.
LOWELL, N.C. 28098
Phone #:
Description of Waste
Address:
3209
CTTY OF LOWELL WWTP
Phone#•
AERATION BASIN
1/30/04 : 6,000 GALLONS
2/2/04 : 30,000 GALLONS
2/3/04: 12,000 §ALLONS
Type Pounds
SOLIDS
SLUDGE 48,000
LIQUID
I hereby certify that the above named material is not hazardous waste as defined by 49 CFR Part 261 or any applicable state law.
''9nerator Signature: DAN DOUGHTERY , PER PHONE Date: _ 1/26/04
CONTRACTOR/TRANSPORTER
Contractor's Name: LIQUID WASTE, INC. Phone #:
Address:
PO BOX 19664
704-391-2392
N.C. Permit #:
WQ0014843
CHARLOTTE, NC 28219-9664 S.C. Permit #:
I hereby certify that the above named material was picked up at the generator site listed above and was delivered without incident
to the destination listed below.
Driver's Signature 5,6-1.1YLL Date: 1/30/04, 2/23/04 ,
Site Name: II0 IN CREEK ? MCALPINE CREEK WIT
Address:
Phone #:
.ereby certify that the above named material has been accepted and to tho bost of my knowledge the foregoing is tnie and accurate.
Authorized Agent: Date Received 1/30/04, 2 / 2 , 3/ U4
WHITE - ORIGINAL -RETURN TO GENERATOR
ICIf),(DrfI?iv
YELLOW-TRANSPORTER/DESTINATION PINK -GENERATOR'S COPY