NC0025861_Application_20190625

101 W. First Street
Lowell, North Carolina 28098
June 25, 2019
Ms. Wrenn Threadford
NPDES Unit
NC DEQ Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone:[phone]
Fax:[phone]
www.lowellnc.com
R2ECE M/NCDEQ/DWR
JUN 2 7 20419
Water Quality
Permitting Section
Subject: Renewal request for NPDES Permit NCO025861, City of Lowell W WIP, Lowell, NC,
Gaston County, North Carolina
Dear Ms. Threadford:
Please find enclosed NPDES form 2A with attachments for our 0.60 MGD biological wastewater
treatment plant. We request renewal of our operating permit The current permit expires January 31,
2020. Our plant is a Class W W-3.
Please contact the applicant, City of Lowell, with any questions or follow-up.
Sincerely,
Ke3in L. -Krouse, City Manager
City of Lowell
Cc: Thomas E. Shrewsbury, Public Works Director
Daniel J. Dougherty, ORC

FACILITY NAME AND PERMIT NUMBER: T
Renewal Catawba
City of Lowell, NCO025861
FORM _—
2A 2A APPLICATION OVERVIEW
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.8. 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 z 0.1 mgd. All treatment works that have design flows
greater than or equal to 0.1 million gallons per day must complete questions B.1 through 13.6.
C. Certification. All 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 1mgd,
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 RCRAICERCLA 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 RCRAICERCLA 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 system must complete Part G (Combined Sewer
Systems).
ALL APPLICANTS MUST COMPLETE PART C (CERTIFICATION)
EPA Form 3510-2A (Rev 1-99). Replaces EPA forms 7550-6 8 7550-22. Page 1 of 21

FACILITY NAME AND PERMIT NUMBER:
City of Lowell, NCO025861 Renewal
BASIC APPLICATION INFORMATION
PART A. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS:
All treatment works ,at complete questions Al through A.8 of this Basic Application Infoinnation Packet
A.I. Facility Information.
Facility Name
Mailing Address
Lowell North Carolina 28098
Catawba
Contact Person Dan Dougherty -.
Title
Telephone Number [phone] Cell [phone]
Facility Address
(not P O. Box) Lowell North Carolina 28098
A.2. Applicant Information. If the applicant is different from the above, provide the following:
Applicant Name
Mailing Address
Lowell North Carolina 28098
Contact Person
Title
Telephone Number
Is the applicant the owner or operator (or both) of the treatment works?
M owner ❑ operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
❑ facility ® 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 NCO025861 PSD
UIC Other
RCRA Other
A.4. Collection System Information. Provide information or1 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 3,000 approx. Sanitary/Gravity Municipal
Total population served 3,000 approx.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550-22. Page 2 of 21

FACILITY NAME AND PERMIT NUMBER:
City of Lowell, NCO025861
PERMIT ACTION REQUESTED: RIVER BASIN:
Renewal Catawba
A.5. Indian Country.
a. Is the treatment works located in Indian Country?
❑ Yes ® No
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?
❑ Yes ® No
A.6. Flow. 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 12" month of "this year" occurring no more than three months prior to this application submittal.
a. Design flow rate .600 mgd
Two Years Ago 2016 Last Year 2017 This Year 2018
b. Annual average daily flow rate 0.3047 MGD 0. 3249 MGD 0.3229 MGD
c. Maximum daily flow rate 0.3461MGD 0.3639 MGD .4067 MGD
A.7. Collection System. Indicate the type(s) of collection systems) used by the treatment plant. Check all that apply. Also estimate the percent
contribution (by miles) of each.
® 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 9 ® Yes ❑ No
If yes, list how many of each of the following types of discharge points the treatment works uses:
i. Discharges of treated effluent
ii. Discharges of untreated or partially treated effluent
iii. Combined sewer overflow points
IV, Constructed emergency overflows (prior to the headworks)
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.? ❑ Yes ® No
If yes, provide the following for each surface impoundment
Location:
Annual average daily volume discharge to surface impoundment(s) 0 mgd
Is discharge ❑ continuous or ❑ intermittent?
c. Does the treatment works land -apply treated wastewater? ❑ Yes ® No
If yes, provide the following for each land application site.
Location:
Number of acres.
Annual average daily volume applied to site: We mgd
Is land application ❑ continuous or ❑ intermittent?
d. Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works? ❑ Yes ® No
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 6 7550-22. Page 3 of 21

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
City of Lowell, NCO025861
Renewal
Catawba
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 Drvbox
If transport is by a party other than the applicant, provide:
Transporter Name L and L Environmental
Mailing Address 8531 Old Dowd Rd..
Charlotte North Carolina 28214
Contact Person Dayton Oaks
Title Driver
Telephone Number [phone]
For each treatment works that receives this discharge. provide the following:
Name Water and Sewer Authority of Cabarrus County
Mailing Address Flowers Store Road
Concord North Carolina
Contact Person Mark Fowler
Title Facilities Operator
Telephone Number (704)7884164
If known, provide the NPDES permit number of the treatment works that receives this discharge.
Provide the average daily flow rate from the treatment works into the receiving facility. gals/day/ it needed
e. Does the treatment works discharge or dispose of its wastewater in a manner not included
in A.8. through A.B.d above (e.g.. underground percolation, well injection): ® Yes ❑ No
If yes, provide the following for each disposal method:
Description of method (including location and size of site(s) 6 applicable):
Republic Services land fill of dryinq bed sludge/air dried. Transport to BF] Grinding landfill. Bio-fuel for power generator.
Annual daily volume disposed by this method: 96 drv/tons/vr1365days= 263 dry tonsidav est.
Is disposal through this method ❑ continuous or ®intermittent?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550-22 Page 4 of ? I

FACILITY NAME AND PERMIT NUMBER:
City of Lowell, NCO025861
PERMIT AC11ON REQUESTED: RIVER BASIN:
Rq I Catawba
WASTEWATER DISCHARGES:
If you answered "Yes" to question A.8.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 "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd."
A.9. Description of Outfall.
a. Outiall number
b. Location
(Cdy a town. a applicable)
(County)
(Latitude)
C. Distance from shore (if applicable)
d. Depth below surface (it applicable)
e. Average daily flow rate
I. Does this ouffall have ether an intermittent or a periodic discharge?
If yes, provide the following information:
Number f times per year discharge occurs:
Average duration of each discharge:
Average flow per discharge:
Months in which discharge occurs:
g. Is ouffall equipped with a diffuser?
(Zip Code)
(State)
(Longitude)
<10 feet fl
nla f
.2975 mgd
❑ Yes ® No (go to A.9.g.)
❑ Yes ® No
mgd
A.10. Description of Receiving Waters.
a. Name of receiving water South Fork River
b. Name of watershed (t known) Catawba
United Stales Soil Conservation Service 14 digt watershed code (if known):
C. Name of State Management/River Basin (if known): Catawba
United States Geological Survey 8-digit hydrologic cataloging unit code (t known).
d. Critical low flow of receiving stream (t applicable)
acute n/a cis chronic Na cis
e. Total hardness of receiving stream at critical low flow (if applicable): mg4 of CaCO3
EPA Form 3510-2A (Rev 1-99). Replaces EPA forms 7550-6 8 7550-22. Page 5 of 21

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
City of Lowell, NCO025861
Renewal
Catawba
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
❑ Primary ® Secondary
❑ Advanced ❑ Other. Describe:
b. Indicate the following removal rates (as applicable):
Design BOD5 removal or Design CBOD5 removal >85
Design SS removal » %
Design P removal n/a
Design N removal We
Other n/a
C. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe:
Chlorination
If disinfection is by chlorination is dechlorination used for this outfall? ® Yes ❑ No
Does the treatment plant have post aeration? ❑ Yes ® 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 outfall 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 analytes 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
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
PARAMETER
Value
Units
Value
Units
Number of Samples
pH (Minimum)
6.3
S.U.
pH (Ma)imum)
7.1
S.U.
Flow Rate 1/2017
.4090
MGD
.2975
MGD
12/monthl /av .
Temperature (Winter)
16.07
Celsius
16.7
Celsius
4 mos.
Celsius
Temperature (Summer)2008
26.33
23.56
Celsius
Simons.
' For pH please report a minimum and a maximum daily value
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
POLLUTANT
DISCHARGE
ANALYTICAL
MLIMDL
Number of
METHOD
Conc.
Units
Conc.
Units
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN
6.8
M
3.156
M 1
12mos/a
EPA405.1
�C�BOD5
DEMAND (Report one)
FECAL COLIFORM (2018)
44.49
MPN
11.18
MPN
12mos/a
SM9222-D
TOTAL SUSPENDED SOLIDS (TSS) (6
14.07
Mg/1
6.018
Ill
12moslayg
EPA160.2
END OF PART A.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 755" & 7550-22. Pao, 6 or 2

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
City of Lowell, NCO025861
Renewal
Catawba
BASIC APPLICATION INFORMATION
PART B. ADDITIONAL APPLICATION INFORMATION FOR APPLICANTS WITH A DESIGN FLOW GREATER THAN OR
EQUAL TO 0.1 MGD (100,000 gallons per day).
All applicants with a design flow rats_ 0.1 mild must answer questions BA through B.6. All others go to Part C (Certification).
B.I. Inflow and Inffltraeon. Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration.
<10.000/dry weather < 3%
Briefly explain any steps underway or planned to minimize inflow and infiltration.
Smoke testina has been conducted to identity I&I Repairs to system are ongoing Manhole liners are in place were
Needed to prevent excessive inflow. Fair Street Sewer Lift Station sub -basin redirected to Two Rivers W WTP on Long C.
B.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 structures through which
treated wastewater is discharged from the treatment plant. Include outtalls from bypass piping, if applicable.
c. Each well where wastewater from the treatment plant is injected underground.
it. Wells, springs, other surface water bodies, and drinking water wells that are: 1) within %mile of the property boundaries of the treatment
works, and 2) listed 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.
8.3. 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 dechlonnation)- 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 descnption of the diagram.
BA. OperatioNMainfenance 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? ® 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.S. Scheduled improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or
uncompleted plans for improvements that will 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 I3.6.)
a. List the oulfall number (assigned in question A.9) for each ouHall 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.
❑ Yes ® No
EPA Form 3510-2A (Rev. 1-99). Replaces EPA fortes 7550-6 & 7650-22 Page 7 of 21

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
City of Lowell, NCO025861
Renewal
Catawba
C. If the answer to B.51 is 'Yes," briefly describe, including new maximum daily inflow rate (t applicable).
d. Provide dates imposed by any compliance schedule or any actual dates of completion for the implementation steps listed below, as
applicable. For improvements planned independently of local. State, or Federal agencies. indicate planned or actual completion dates, as
applicable. Indicate dates as accurately as possible.
Schedule Actual Completion
Implementation Stage MM/DD/YYYY MM/DD/YYYY
- Begin Construction
- End Construction
- Begin Discharge
- Attain Operational Level
e. Have appropriate permits/clearances concerning other FederalfState requirements been obtained? ❑ Yes ❑ No
Describe briefly:
B.6. EFFLUENT TESTING DATA (GREATER THAN 0.1 MGD ONLY).
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 outfall through which effluent is discharged. Do not include information
on combine 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. At a minimum effluent testing data must be
based on at least three pollutant scans and must be no more than four and on -half years old.
Outfall Number. 001
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
POLLUTANT
DISCHARGE
ANALYTICAL
MLIMDL
Number orf
METHOD
Conc.
Units
Cont.
Units
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA (as N)
6.25
Mgn
3.53
Mg/I
3/pwr/wk
EPA60.1
CHLORINE (TOTAL
14.07
U911
< 20
Ugll
3/perlwk
DPDIHACH2O10
RESIDUAL, TRC)
DISSOLVED OXYGEN
No limit
TOTAL KJELDAHL
10.1
Mg0
7.93
Mg/1
4
EPA351.2
NITROGEN (TKN)
NITRATE PLUS NITRITE
33.8
M9fl
13.52
Mgg
4
EPA35M2
NITROGEN
OIL and GREASE
No limn
PHOSPHORUS (Total)
IL9
Mgn
1.966
M9/1
4
EPA365.4
TOTAL DISSOLVED SOLIDS
NON"*
(TDS)
OTHFR
END OF PART B.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 8 of 21

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
City of Lowell, NCO025861
Renewal
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 ail 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:
® Basic Application Information packet Supplemental Application Information packet:
❑ Part D (Expanded Effluent Testing Data)
❑ Part E (Toxicity Testing: Biomondoring Data)
❑ Pad F (Industrial User Discharges and RCRA/CERCLA Wastes)
❑ Part G (Combined Sewer Systems)
ALL APPLICANTS MUST COMPLETE THE FOLLOWING CERTIFICATION.
1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who
manage the system or those persons directly responsible for gathemlg the information, the information is, to the best of my knowledge and belief, true,
accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment
for knowing violations.
Name and official title Kevin Kro C an r/Permittee
Signature
Telephone number [phone]
Date signed - %D /
Upon request of the permitting authority, you must submit any other information necessary to assure wastewater treatment practices at the treatment
works or identify appropriate permitting requirements.
SEND COMPLETED FORMS TO:
NCDENR/ DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550-22. Page 9 of 21

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CONTROL BUILDING CENTRAL TREATMENT UNIT COMPLETED APRIL 3, 1960
CAPACITY • 600,000 GAL. PER DAY HARRISON-FOX 9 ASSOC., INC.
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Ylilt'
Outfall 001
Lowell
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N Wate* McAdenvilfe
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Site Coords 35° 16' 10" N Sub -Basin 03-08-35 Approx Scale 1" = 1500' Receiving Stream UT to S Fork Catawba River
81. 04' 55" W USGS Quad: Mount Holy Stream Class: WS-V
NPDES NCO025861
City of Lowell WWTP
Lowell Wastewater Treatment Plant
98 Saxony Drive
Lowell, NC 28098
W. Ronald Haynes, PE
P. 0. Box 666
Granite Falls, NC 28630
[phone]
[phone] CEL
[e-mail]
Project J-610
June 25, 2019

aceAnall calo
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ANALYTICAL RESULTS
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntemville, NC 28078
[phone]
Project: R9944-LO
Pace Project No.: 92426030
Sample: R9944-LO Lab ID: 92426030001 Collected: 04117/19 12:30 Received: 04/18/19 08:10 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1631E Mercury,Low Level Analytical Method: EPA 1631 E Preparation Method: EPA 1631 E
Mercury 1.90 ng/L 0.50 1 04122/19 08:00 04/25/19 17:42 7439-97-6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/30/2019 03:30 PM without the written consent of Pace Analytical Services, LLC.
Page 4 of 12

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K & W Laboratories
1121 Hwy 24/27W
Midland, NC 28107
Tel: [phone]
Fax: [phone]
Chain of Custody Record
Client/Company: City of Lowell
Report To:
Remarks:
Address: 101 West 1st Street
Lowell, NC 28098
Copy To:
Bill To:
Contact: Dan
Phone: [phone] Fax:
PO #
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Project Name: Lev6L 't(
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