NC0026565_Pretreatment_Annual_Report_20230301

Ram5@ur
Where Family and Friends Meet
TOWN OF RAMSEUR
724 Liberty Street, PO Box 545
Ramseur, North Carolina 27316
336-824-8530
COMMISSIONERS MAYOR TOWN CLERK / FINANCE OFFICER
Diana Brower, Mayor Pro Tem Vicki Caudle Carol Akers
J.C. Parrish
Tim Cranford DEPUTY TOWN CLERK / FO
Soy Kearns
Tresa Hatchett Debra Rhamy
February 28, 2023
Mr. Michael Montebello
NCDENR/DWQ/PERCs
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: 2022 Town of Ramseur Pretreatment Annual Report, NCO026565
Dear Mr. Montebello,
Enclosed, please find the 2022 Pretreatment Annual Report for the Town of Ramseur, NC0026565.
I 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 gathering the
information, the information submitted 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 fines and imprisonment for
knowing violations.
Should you have any questions or require additional information, please do not hesitate to contact me at the phone number or
email listed below.
Regards,
Terry L$wallen
Wastewater Operator in Responsible Charge
[e-mail]
Cell [phone]

Ramseur
Where Family and Friends Meet
Pretreatment Annual Report
2022
Town of Ramseur, NC
NCO026565

Ramseur
Where Family and Friends Meet
TOWN OF RAMSEUR
NPDES# NCO026565
Pretreatment Annual Report
2022
I. Narrative
II. Pretreatment Performance Summary (PPS) and Corrected PPID
III. Significant Non -Compliance Report (SNCR) and State Database Info
Sheet
IV. Industrial Data Summary Forms (IDSF), Matlab, Inc. IUP 0002
V. Town of Ramseur Wastewater Treatment Plant Allocation Table
VI. SIU Effluent Limits and Monitoring Requirements, Matlab, Inc. IUP
0002
VII. STMP Summary
Appendix A. PFAS/PFOS Monitoring IUP 0002
Appendix B. IUP 0002 EL&MR Correction Transmittal

Ramsaur
Where Family and Friends Meet
Narrative and Program
Information Sheet

Ramseur
Where Family and Friends Meet
TOWN OF RAMSEUR
NPDES# NCO026565
2022 Pretreatment Annual Report Narrative
A. General Program Information: Program Updates
➢ The Town's received a renewed NPDES discharge permit effective May 1, 2022. The
permit contains a 3-year compliance schedule for copper with the option to perform a
WER study. However, monthly monitoring for copper beginning in June 2022 indicates
that the plant is already compliant with the permit limits.
➢ An updated STMP was submitted to the Division on May 9, 2022, and was approved on
June 6, 2022. The updated STMP includes additional pollutants of concern and lower
PQLs for some pollutants to address headworks allocations and the hardness -based
metals determinations. The Pretreatment Program began sampling based on the
approved, updated STMP in June of 2022. Quarterly data collected in 2022 are
summarized in Section VII of this report. Please note that the contract laboratory has
not met the requested PQL of 1 µg/L for 1,4 dioxane and has not provided a data
qualifier on the reports for the higher LOD. The POTW has informed the lab that retests
will be required going forward if the PQL is not met or a data qualifier is not included
in the lab report.
➢ An extension for the Headworks Analysis was requested in order to allow time for
collection of data per the updated STMP. The extension for the analysis was granted by
the Division. The new due date is May 15, 2023. The Pretreatment Program Information
Database sheet incorrectly lists the due date as May 15, 2022. Please note the comment
on the included PPID sheet and the included letter from the Division granting the
extension.
➢ No wastewater treatment plant NPDES non-compliance events due to industrial users
occurred in 2022.
➢ The Pretreatment Program was inspected by the Winston-Salem Regional office of
NCDEQ on May 13, 2022, and found to be in compliance.
B. Industrial User and Compliance Information: Matlab, Inc. (IUP # 0002)
➢ This SIU performed all flow sampling and reporting as required.
➢ The SIU was inspected once and sampled twice by the POTW. The POTW monitoring
of the industry included new STMP parameters, e.g., BOD, Ammonia and 1,4 dioxane.
Data for routine and these additional parameters are summarized in the IDSF.
Town of Ramseur, NCO026565 PAR Narrative 2022

Additionally, the POTW monitored the industry for PFAS/PFOS compounds, and the
data are included in a summary table in Appendix A of this report.
➢ The POTW noted a technical error in the IUP EL&MR. The frequency for POTW
monitoring of the industry was inadvertently not listed for many of the pollutant
parameters. The POTW issued a corrected EL&MR to the industry. A copy of the
transmission letter and the correction are included in Appendix B of this report.
➢ The SIU provided the permit required/allowed certifications for the alternative to
monitoring for Cyanide, Silver and TTO testing.
➢ The SIU remained compliant with its IUP throughout 2022.
Town of Ramseur, NC0026565 PAR Narrative 2022

Ramseur
Where Family and Friends Meet
II. Pretreatment Performance
Summary and Corrected PPID

Town of Ramseur PPS 2022
Chapter 9, PAR Guidance
Pretreatment Performance Summary (PPS)
1.
Pretreatment Town Name: Town of Ramseur
2.
"Primary" NPDES Number NC00 26565
or Non Discharge Permit # if applicable =>
3.
PAR Begin Date, please enter 01/01/yyyy
3. =>
01/01/2022
4.
PAR End Date, please enter 12/31/yyyy
4. =>
12/31/2022
5.
Total number of SIUs, includes CIUs
5. =>
1
6.
Number of CIUs
6. =>
1
7.
Number of SIUs with no IUP, or with an expired IUP
7. =>
0
8.
Number of SIUs not inspected by POTW
8. =>
0
9.
Number of SIUs not sampled by POTW
9. =>
0
10.
Number of SIUs in SNC due to IUP Limit violations
10. =>
0
11.
Number of SIUs in SNC due to Reporting violations
11. =>
0
12.
Number of SIUs in SNC due to violation of a Compliance Schedule, CO, AO or similar
12. =>
0
13.
Number of CIUs in SNC
13. =>
0
14.
Number of SIUs included in Public Notice
14. =>
0
15
Total number of SIUs on a compliance schedule, CO, AO or similar
15. =>
0
16.
Number of NOVs, NNCs or similar assesed to SIUs*
16. =>
0
17.
Number of Civil Penalties assessed to SIUs
17. =>
0
18.
Number of Criminal Penalties assessed to SIUs
18. =>
0
19.
Total Amount of Civil Penalties Collected* * 19. =>
$
0
20.
Number of IUs from which penalties collected
20. =>
0
dotes:
AO Administrative Order IUP Industrial User Pretreatment Permit POTW
CIU Categorical Industrial User NNC Notice of Non -Compliance SIU
Publicly Owned Treatment Works
Significant Industrial User
CO Consent Order NOV Notice of Violation SNC
Significant
Non -Compliance
IU Industrial User PAR Pretreatment Annual Report
revised 1/2018: PAR PPS 2022

Pretreatment Program Info Database
printed on: 1 /19/2023
for Program Name Ramseur
WWTP Name Town of Ramseur
Program Approval Date 12/01/2015
Pretreatment Status Modified
Region WSRO
County Randolph
NPDES N b
Stream Information %h� IWC % at 7Q10 6.33
7Q10 Flow cfs / mgd 11 / 7.11
1Q10 Flow cfs / mgd 9.12 / 5.89
Stream Classification C
Basin Number CPF09
Receiving Stream Name DEEP RIVER
um er NC0026565
NPDES Effective Date
Last PAR Rec 02/28/2022
PAR Due Date03/01/2023
mercury
09/01 /2016
1631
NPDES Expire Date
p� 04/30/2021
Current Fiscal 09/10/2021
required
Year PCI Done
POTW is Primary WWTP TRUE
Last Audit on 02/04/2020
Audit Year Nexi19/20
yes
Design Flow mgd 0.4800 % Design
mgd is SIU permitted
5.21
Permitted SIU flow (mgd) [Pt—SIU) 025
WWTP SIU's
1 Program SIUs 1
WWTP CIU's
1 Program CIUs11
HWA LTMP
IWS SUO
ERP
date Inactive Date Next Due
05/15/2022
04/14/2026
Date Received by DWR
12/20/2017 05/09/2022
04/01/2021 09/22/2015
07/26/2021
Date Approved
02/08/2018 06/02/2022
05/05/2021 10/02/2015
10/05/2021
Adopt Date Required
Date Adopted
10/12/2015
Info in this Box from Pt Contacts
Date Date Date
PT —Pro Attended Attended Attended
Formal Name g.Prime Phonel ext Fax HWA Wksp IUP Wksp PAR Wksp
Mr. Terry Lewallen 1 11(336) 824-3939
[phone]
11
[e-mail]
Supervisor, WWTP
PO Box 545
27316
Ms. Vickie Caudle
Prim
336-302-1300
[e-mail]
Mayor
PO Box 1366
27316
Mr. Jim McIntosh
1 11336-302-3154
bigmacl [e-mail]
Commissioner and Mayor Pro Tern
PO Box 545
27316
Ms. Lisa Osthues
Prim
910-990-0329
L
1
1110/29/2013 09/27/2011 02/05/20
[e-mail]
Pretreatment Consultant
1168 Nathan Dudley Road12
28328
Pretreatment Related NOVs from DWQ
7-21-1989 7/5/89 inspection - jul-dec 1988 SAR not done, problems
7-16-1990 7/12/90 inspection - failure to sample, take enforcement,
2-8-1993 2/1/93 inspection, did meet earlier dates on ERP and
10/5/2000 NOD -late SAR (WSRO)
DWR Central Office Contact JPretreatment Staff
DWR Regional Contact jJim Gonsiewski

DocuSign Envelope ID: 59FE78FB-5FE6-4B2F-845A-6979BE2F8CD3
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
6/2/2022
Via Electronic Mail ([e-mail])
Mr. Terry Lewallen
WWTP Supervisor - ORC
Town of Ramseur
P.O. Box 545
Ramseur, NC 27316
Subject: Pretreatment Review of Short Term Monitoring Plan and Headworks Analysis Due Date Extension
Program: Town of Ramseur, Town of Ramseur WWTP - NPDES #: NCO026565
Randolph County
Dear Mr. Lewallen:
The Municipal Unit of the Division of Water Resources has reviewed the updated Short Term Monitoring Plan
(STMP) for the Town of Ramseur (NC0026565). The submission was received 05/9/2022.
The review indicates that the revised STMP is adequate and meets the requirements needed to establish a site -specific
Headworks Analysis (HWA). Proper implementation of a STMP is also required by your NPDES permit. Please refer
to the Comprehensive Guidance for North Carolina Pretreatment Programs (Comprehensive Guide) for additional
information and examples. Modifications to the STMP must be approved by the Division.
The request to extend the HWA due date is granted after updating STMP PQLs as was required in the 04/06/2022
renewal of the Town of Ramseur's NPDES permit. The approved HWA Due Date is extended to May 15, 2023.
Regardless of approval action today, within 180 days of the effective date of any reissued or modified NPDES permit
the Permittee would be required to submit to the Division a written technical evaluation of the need to revise local
limits (i.e., an updated IWS, or documentation of why one is not needed). This action may include revising, updating,
or adding to the list of Significant Industrial Users (SIUs). Pursuant to 15A NCAC 2H .0907(b) either the Division
or the permittee may initiate pretreatment program revisions.
Federal and State pretreatment regulations require the local delegated pretreatment program- to effectively control
and document the discharge of wastewater from Significant / Categorical Industrial Users to the POTW. It is the
POTWs responsibility to ensure these objectives are constantly met.
Thank you for your continued cooperation with the Division's Pretreatment Program. If you have any questions or
comments, please contact Keyes McGee at [phone] [email: [e-mail]].
tkm/Ramseur_STMP.005
Ec: Municipal Unit File
Lisa Osthues, Pretreatment Consultant
Jim Gonsiewski, WSRO
Central Files (Laserfische)
Sincerely,
Dx/uSigne''d by: L �
C464531431644FE...
for Richard E. Rogers, Jr., Director
Division of Water Resources
D E
Q
�� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINq
oea.m.m,remn,nn,an'r0ual\ /" 919.707.9000

Ramseur
Where Family and Friends Meet
IIT Significant Non -
Compliance Report

Pretreatment Annual Report (PAR) PAR covers this calendar year =>
Significant Non -Compliance Report (SNCR) Control Authority--Program--Town Name =>
WWTP = Wastewater Treatment Plant, use separate form for each WWTP. WWTP Name =>
SIU = Significant Industrial User NPDES # _>
SNC = Significant Non -Compliance
A SNCR Form must be submitted with every PAR, please write "None " if you had No SIUs in SNC during calendar year
IUP
#
Pipe
#
Industry Name
Parameter
or "Reporting"
SNC? (Yes/ No)
for each 6-month period.
Jan. - June
July - Dec.
0002
001
Matlab, Inc.
None
No
No
Attach a copy of the Division's "SIUs in SNC Historical Report" for your POTW's SIUs behind this page.
Is the database correct ? Notify the Division of any errors ! Database indicates SNC history for previous years. The SNC database is correct.
EVERY SNC MUST be explained in the Narrative, How was, is, or will it be resolved?
REPEAT SNCs are serious matters that MUST be explained in the Narrative.
PAR,SNCR, Ramseur 2022
2022
Town of Ramseur
Rameur WWTP
NCO026565

hist
IIVV REPORT
2016 2017 2018 2019 2020 2021 2022
1st half 12nd half 1st half 12nd half 1st half 12nd half 1st half 12nd half 1st half 12nd half 1st half 12nd half 1st half 12nd half
Matlab, Inc. PreviousNames:
UP # 0002 Pipe # 01 SIU Word Description:
metals-433-new source job shop
IUP Status: Active
Zinc I IX I XI
An 'X' in a semi-annual period indicates snc for the period for the respective parameter.
PRINTED ON: 1/19/2023 This information is compiled from many sources, and has not been verified.
Contact the local pretreatment coordinator or state pretreatment staff if errors are noted.
PAGE 96

Ramseur
Where Family and Friends Meet
IV Industrial Data Summary
Form

Control Authority,
Pretreatment Annual Report (PAR)
Town Name => Town of Ramseur
Industrial Data Summary Form (IDSF)
W WTP Name => Town of Ramseur W WTP
Use separate forms for each industry/pipe
Enter BDL values as < (value)
NPDES # _> NCO026565
AVERAGES CALCULATED USING ALL INDUSTRY AND POTW
1st 6 months, dates => l/l/2022 6/30/2022
VALUES.
2nd 6 months, dates => 7/l/2022 12/31/2022
Total # of samples =%
* Maximum (cone. or MGD)
* or Maximum (lb/d)
* Average (cone. or MGD)
* or Average Loading (lb/d)
# Violations / # TRC
% violations,(chronic SNC is >= 66%)
% TRC violations, (SNC is >= 33 %)
Total # of samples =%
* Maximum (cone. or MGD)
* or Maximum (lb/d)
* Average (cone. or MGD)
* or Average Loading (lb/d)
# Violations / # TRC =%
% violations,(chronic SNC is >= 66%) _=
% TRC violations, (SNC is >= 33 %)
Total # of samples =%
* Maximum (cone. or MGD)
* or Maximum (lb/d)
* Average (cone. or MGD)
* or Average Loading (lb/d)
# Violations / # TRC
% violations,(chronic SNC is >= 66%)
% TRC violations, (SNC is >= 33 %) _=
* POTW must enter at least one of these
four rows, Please indicate how averages were calculated
Ave neriod could be month. On. or 6-month & if BDL . 1/2BD
IDSF IUP 0002 Matlab 2022
Industry
Name Matlab, Inc.
IUP # 0002
Pipe # 001
Flow, Monthly Avg, MGD
TSS, Daily Max, mg/L
Oil & Grease, mg/L
Cadmium, mg/L
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
6
6
1
1
1
1
1
1
0.014
0.014
162
18
41.1
13.1
<0.0005
<0.0005
0.013
0.013
162
18
41.1
13.1
<0.0005
<0.0005
0
0
0/0
0/0
0/0
0/0
0/0
0/0
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Chromium, mg/L
Copper, mg/L
Cyanide, mg/L
Lead, mg/L
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1
1
1
1
1
1
1
1
0.009
0.007
0.009
0.004
0.012
0.015
0.004
0.003
0.009
0.007
0.009
0.004
0.012
0.015
0.004
0.003
0
0
0/0
0/0
0
0/0
0/0
0/0
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mercury LL, ng/L
Nickel, mg/L
Silver, mg/L
TTO, mg/L or certification
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1
1
1
1
1
1
<1
<1
0.003
0.005
<0.00025
<0.00025
cert.
cert.
<1
<1
0.003
0.005
<0.00025
<0.00025
cert.
cert.
0/0
0/0
0/0
1 0/0
0/0
0/0
0/0
0/0
0%
0%
0%
0%
0%
0%
0%
07/10
0%
0%
0%
0%
0%
0%
0%
0%
BDL => Below Detection Lnmt
IUP => Industrial User Permit
SNC => Significant Non -Compliance
or zero values used. TRC => Technical Review Criteria
mg/l => mnlrgrams per liter
lb/d => pounds per day
mgd => million gallons per day
W WTP => wastewater treatment

Pretreatment Annual Report (PAR)
Industrial Data Summary Form (IDSF)
Use separate forms for each industry/pipe
Enter BDL values as < (value)
Total # of samples =>
* Maximum (conc., SU, or °C) =>
* or Maximum (lb/d)=>
* Average (conc. or °C) _>
* or Average Loading (lb/d) _>
# Violations / # TRC =>
% violations,(chronic SNC is >= 66%) =>
% TRC violations, (SNC is >= 33 %) _>
Total # of samples =>
* Maximum (conc. or MGD) _>
* or Maximum (lb/d) _>
* Average (concentration) _>
* or Average Loading (lb/d) _>
# Violations / # TRC =>
% violations,(chronic SNC is >= 66%) _>
% TRC violations, (SNC is >= 33 %) _>
Total # of samples =>
* Maximum (conc. or MGD) =>
* or Maximum (lb/d) _>
* Average (concentration) _>
* or Average Loading (lb/d) _>
# Violations / # TRC =>
Industry Name Matlab, Inc.
IUP # 0002
Pipe # 001
Zinc, mg/L
pH, S.U.
Temp, °C
BOD (for STMP), mg/L
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1
1
1
1
1
1
1
1
0.083
0.249
Max=7.0
Max=6.8
36
31
41
18
Min=7.0
Min=6.8
0.083
0.249
36
31
41
18
0/0
0/0
0
0
0/0
0/0
NA
NA
0%
0%
0%
0%
0%
0%
NA
NA
0%
0%
N/A
N/A
0%
0%
NA
NA
Ammonia (for STMP), mg/L
1,4 Dioxane (for STMP), ug/L
PFAS/PFOS
1 st 6 months
2nd 6 months
2nd 6 months
1
1
1
See Appendix A for PFAS/PFOS
Monitoring for the first and
second halves of 2022
0.37
0.51
<2
0.37
0.51
<2
NA
NA
NA
NA
NA
NA
NA
NA
NA
% violations,(chronic SNC is >= 66%) —>
% TRC violations, (SNC is >= 33 %) _>
BDL => Below Detection Limit mg/l => milligrams per liter
* POTW most enter at least one of these IUP => Industrial User Permit lb/d => pounds per day
four rows, Please indicate how averages were calculated SNC => Significant Non -Compliance mgd => million gallons per day
Ave oeriod could be month. Ott. or 6-month & if BDL . 1/2BDL. or zero values used. TRC => Technical Review Criteria W WTP => wastewater treatment nlant
IDSF IUP 0002 Matlab 2022

Ramseur
Where Family and Friends Meet
V. Allocation Table

POTW=>
NPDES#==
IUP
Count
1
2
3
4
5
6
7
8
9
10
Workbook Name: Ramseur_HWA_AT, Worksheet Name: AT
Allocation Table
Headworkslastapproved: 02/08/18
Allocation Table updated: 07/30/21
Permits last modified: 07/30/21
Town of Ramseur
NCO026565
FLOW BOD TSS
Industry Type Renewal Modification Date Permit Limits Permit Limits Permit Limits
INDUSTRY NAMES Permit Pipe of Effective Effective Permit Conc. Load Conc. Load
(please list alphab.uly) number number Industry Date Date Expires MGDgal/day m lbs/da m lbs/da
Matlab
0002
001
433
07/30/21
12/31/25
0.0250
25,000
Monitor
Column Totals =>
0.02501
25,000
0
0
Basis=> NPDES Design Design
MARL from HWA (lbs/day) => NPDES Permitted Flow=> 0.4800 801 701
Uncontrollable Loading (lbs/day) _> 0.1120 199 154
Total Allowable for Industry (MAIL) (lbs/day) => 0.3680 602 546
Total Permitted to Industry (lbs/day) _> 0.0250 0 C
MAIL left (lbs/day) _> 0.3430 602 546
Percent Allow. Ind. (MAIL) still available (%) _> 93.2 % 100.0 % 100.0 %
Percent MAHL still available (%) _> 71.5 % 75.2 % 78.0 %
5 Percent MAHL (lbs/dav) =>
Ramseur Headworks AT Approed 2018 Updated 073021

POTW=>
NPDES#==
IUP
Count
1
2
3
4
5
6
7
8
9
10
Workbook Name: Ramseur_HWA_AT, Worksheet Name: AT
Allocation Table
Headworkslastapproved: 02/08/18
Allocation Table updated: 07/30/21
Permits last modified: 07/30/21
Town of Ramseur
NCO026565
Ammonia Arsenic Cadmium Chromium Copper Cyanide
Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits
INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load
(please list alphabetidy) number number mg/1 lbs/da m /l lbs/da m /l lbs/da m /l lbs/da m /l lbs/da m /l lbs/da
Matlab
0002
001
0.0700
0.0146
0.5000
0.1043
2.0700
0.4316
0.1000
0.0209
Column Totals =>
0
0.0000
0.0146
0.1043
0.4316
0.0209
Basis=>
MAHL from HWA (lbs/day) =>
Uncontrollable Loading (lbs/day) _>
Total Allowable for Industry (MAIL) (lbs/day) =>
Total Permitted to Industry (lbs/day) _>
MAIL left (lbs/day) _>
Percent Allow. Ind. (MAIL) still available
Percent MAHL still available
5 Percent MAHL (lbs/dav) =>
Sludge Sludge
Ceiling Ceiling AS/Nlt/TF AS/Nit/TF
HASL Stream Std HASL inhibition inhibition
Ramseur Headworks AT Approed 2018 Updated 073021

POTW=>
NPDES#==
IUP
Count
1
2
3
4
5
6
7
8
9
10
Workbook Name: Ramseur_HWA_AT, Worksheet Name: AT
Allocation Table
Headworkslastapproved: 02/08/18
Allocation Table updated: 07/30/21
Permits last modified: 07/30/21
Town of Ramseur
NCO026565
Lead Mercury Molybdenum Nickel Selenium Silver
Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits
INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load
(please list alphab.uly) number number mg/1 lbs/da m lbs/da m /l lbs/da m /l lbs/da m /l lbs/da m /l lbs/da
Matlab
0002
001
0.2000
0.0417
Monitor
1.0000
0.2085
0.2400
0.0500
Column Totals =>
0.0417
1 0.000000
0.0000
1 0.2085
0.0000
0.0500
Basis=>
MAHL from HWA (lbs/day) =>
Uncontrollable Loading (lbs/day) _>
Total Allowable for Industry (MAIL) (lbs/day) =>
Total Permitted to Industry (lbs/day) _>
MAIL left (lbs/day) _>
Percent Allow. Ind. (MAIL) still available
Percent MAHL still available
5 Percent MAHL (lbs/dav) =>
AS/Nit/TF AS/Nit/TF
inhibition Stream Std Not a POC inhibition
0.000001
1 99.9 % 1
AS/Nit/TF
Not POC inhibition
Ramseur Headworks AT Approed 2018 Updated 073021

POTW=>
NPDES#==
IUP
Count
1
2
3
4
5
6
7
8
9
10
Workbook Name: Ramseur_HWA_AT, Worksheet Name: AT
Allocation Table
Headworkslastapproved: 02/08/18
Allocation Table updated: 07/30/21
Permits last modified: 07/30/21
Town of Ramseur
NCO026565
Zinc Total Nitrogen Total Phos. TTO Oil/Grease
Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits
INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load
(please list alphab.uly) number number mg/1 lbs/da m /l lbs/da m /l lbs/da m /l lbs/da m /l lbs/da
Matlab
0002
001
1.4800
0.3086
2.1300
0.4441
Monitor
Column Totals =>
0.3086
1 0.001
0.00
0.4441
1 0.0000
AS/Nit/TF
Basis=>
inhibition
MAHL from HWA (lbs/day) =>
1.025£
Uncontrollable Loading (lbs/day) _>
0.0955
Total Allowable for Industry (MAIL) (lbs/day) =>
0.9295
Total Permitted to Industry (lbs/day) _>
0.308E
MAIL left (lbs/day) _>
0.621]
Percent Allow. Ind. (MAIL) still available (%) _>
66.8
Percent MAHL still available (%) _>
60.6
5 Percent MAHL (lbs/dav) =>
#VALUE!
#VALUE!
Ramseur Headworks AT Approed 2018 Updated 073021

Ramseur
Where Family and Friends Meet
VI. EL & MR

MATLAB; Town of Ramseur IUP #0002 Effluent Limits and Monitoring Requirements Page Corrected February 28, 2023
IUP, Part 1 Section F:
Effluent Limits and Monitoring Requirements
The Permittee may discharge from this specific
Pipe number according to these specific dates,
effluent limits, and monitoring requirements
Receiving POTW name =>
Receiving POTW NPDES # _>
Effective date for these Limits =>
Expiration date for these Limits =>
Ramseur POTW
NC0026565
IU name =>
IUP # _>
July 30, 2021 Pipe # _>
December 31, 2025 40 CFR # _>
THE LIMITS ON THIS PAGE ARE, (Check one below):
LIMITS for ENTIRE permit period => X
INTERIM Limits for period # 1 =>
INTERIM Limits for period # 2 =>
FINAL Limits Page =>
MATLAB, Inc.
0002
001
433
if not applicable put N/A
Concentration Limits
Mass Limits
MonitoringFre
uenc
Dail Max
Monthly
Avera e
Units
Daily Max
Monthly
Average
Units
By Industry
B POTW
Sample
Collection
Method
C or G
Required
Laboratory
Detection
Level
1
Flow
0.025
MGD
Daily'
Each Sample
Estimated
2
TSS
Monitor
m L
1/6 Months
C
2.0 m /L
3
Hydrocarbon Oil
& Grease
Monitor
m /L
1/6 Months
G
5.0 m /L
4
Temperature
400C
°C
1/6 Months
G5
1 °C
5
pH
6.0 to 10.0
S.U.
1/6 Months
G
1 to 14 S.U.
OTHER PARAMETERS; Please List Al habeticall
6
Cadmium
0.070
m /L
1/6 Months
C
0.002 m /L
7
Chromium
0.500
m /L
1/6 Months
C
0.005 m /L
8
Copper
2.070
m /L
1/6 Months
C
0.002 m /L
9
Cyanide 2
0.100
m /L
1/6 Months
C
0.005 m /L
10
Lead
0.200
m /L
1/6 Months
C
0.010 m /L
11
Mercury'
Monitor
m /L
1/6 Months
C
5 n /L
12
Nickel
1.000
m /L
1/6 Months
C
0.010 m /L
13
Silver'
0.240
m /L
1/6 Months
C
0.002 m /L
14
TT04
2.13
m /L
C
15
Zinc
1.480
m /L
1/6 Months
C
0.010 m /L
1 See Part III 4. for description of method of flow determination.
' See Part III 7.
3 Mercury analysis shall be performed in accordance with Method EPA 1631 E.
4 See Part III 8, 9 and 10.
5Temperature and pH may be performed as grab samples with a 15-minute hold time or as in situ measurements taken directly in the wastestream flow.
NOTE: This page was corrected 2/28/23 to add frequency of POTW monitoring for all parameters. This was inadvertently missed in the original version of the EL&MR. No other
changes were made to the IUP.
7

Ramseur
Where Family and Friends Meet
VII. STMP Data Summary

Town of Ramseur
Summary of Short Term Monitoring 2022
Sample Month: June, BOD5
NH3-N
Total Nitrogen
TSS
TKN
Phosphorus
Cd
Cr
Ni
1,4 dioxane
2022 mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Influent
273
16.7
51.7
226
51.6
8.54
<
0.0005
0.01
0.01
<
0.002
Effluent
18
4.58
12.5
<
10
11.9
5.34
<
0.0005
<
0.005
0.004
<
0.002
PQL in STMP
2
F 0.1
NS
2.5
NS
NS
0.0005
0.005
0.005
0.001
Pb
cu
Zn
CN-
Hardness
Hg
As
Se
Ag
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Influent
<
0.002
0.035
0.147
<
0.005
NT
<
0.0002
<
0.002
<
0.001
0.00028
Effluent
<
0.002
0.01
0.011
<
0.005
63
<
0.000001
<
0.002
<
0.001
<
0.00025
PQL in STMP
0.002
0.002
0.01
0.005
0.1
0.0002 mg/L /
1 ng/L
0.002
0.005
0.001
Sample Month: Sept, BOD5
NH3-N
Total Nitrogen
TSS
TKN
Phosphorus
Cd
Cr
Ni
1,4 dioxane
2022 mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Lmg/Lmg/L
mg/L
Influent
417
28.8
89.61
571
89.50
13.60
<
MIgO'O
05
0.034
0.021
<
0.002
Aeration Basin
NT
3.6
NT
NT
NT
NT
0.004
0.124
0.132
NT
Effluent
18
3.64
12.88
<
12
12.88
2.85
<
0.0005
0.014
<
0.005
<
0.002
PQL in STMP
2
0.1
NS
2.5
NS
NS
1
0.0005
0.005
1
1 0.005
1
0.001
Pb
Cu
Zn
CN-
Hardness
Hg
As
Se
Ag
%solids
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Influent
0.004
0.104
0.362
<
0.005
NT
<
0.0002
<
0.002
lab error
0.00038
NT
Aeration Basin
0.07
1.422
2.6
0.008
NT
0.0011
<
0.002
NT
0.005
0.48
Effluent
<
0.002
0.005
0.020
<
0.005
62
<
<
0.002
lab error
<
0.00025
NT
PQL in STMP
0.002
0.002
0.01
0.005
0.1
0.0002 mg/L /
1 ng/L
0.002
0.005
0.001
NS
Sample Month: Dec, BOD5
NH3-N
Total Nitrogen
TSS
TKN
Phosphorus
Cd
Cr
Ni
1,4 dioxane
2022 mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Influent
169
38.7
44.33
129
44.20
7.72
<
0.0005
0.015
<
0.005
<
0.002
Aeration Basin
NT
0.4
NT
NT
NT
NT
1 0.0008
0.089
0.062
1
NT
Effluent
2
3.86
12.56
<
2.5
4.88
3.97
<
0.0005
<
0.005
<
0.005
<
0.002
PQL in STMP
2
0.1
1
1 NS
1
1 2.5
NS
I
I NS
1
1 0.0005
1
1 0.005
1
1 0.005
1
1 0.001
Pb
I Cu
I
I Zn
I
I CN-
I
I Hardness
I
I Hg
I
I As
I
I Se
I
I Ag
I
I %solids
Mgt
I mg/L
I
I mg/L
I
I mg/L
I
I mg/L
I
I mg/L
I
I mg/L
I
I mg/L
I
I mg/L
Influent
<
0.002
1
1 0.032
1
1 0.121
1 <
1 0.005
1
1 NT
I <
1 0.0002
1 <
1 0.002
1 <
1 0.001
1 <
1 0.00025
1
1 NT
Aeration Basin
0,017
0.723
1.241
0.006
NT
0.00043
<
0.002
NT
0.0044
0.26
Effluent
<
0.002
0.006
0.032
<
0.005
70
<
0.000001
<
0.002
<
0.001
<
0.00025
NT
PQL in STMP
0.002
0.002
0.01
0.005
0.1
0.0002 mg/L /
1 ng/L
0.002
0.005
0.001
NS
NT = Not Tested
NS = No detection limit set for plan
STMP Summary 2022
PQL not met by contract lab.

Ramseur
Where Family and Friends Meet
Appendix A PFAS/PFOS
Monitoring IUP 0002

MATLAB PFAS/PFOS MONTORING 2022
Sample Date 6/27/22 Sample Date 12/22/22
Compound
CAS
Industrial Discharge n /L
Industrial Discharge n /L
Acids
PFBA
375-22-4
<LOD (0.132) U
<LOD (0.133) U
PFPeA
2706-90-3
1.66
<LOO (0.148) U
PFHxA
307-24-4
1.68
1.46
PFHpA
375-85-9
1.25
1.03
PFOA
335-67-1
2.48
1.8
PFNA
375-95-1
0.648
0.426 J
PFDA
335-76-2
0.538 J
0.270 J
PFUnDA
2058-94-8
<LOD (0.159) U
<LOO (0.161) U
PFDoDA
307-55-1
<LOD (0.174) U
<LOO (0.176) U
PFTrDA
72629-94-8
<LOD (0.130) U
<LOD (0.131) U
PFTeDA
376-06-7
<LOD (0.188) U
<LOD (0.190) U
Sulfonates
PFBS
375-73-5
0.836
0.625 J
PFPeS
2706-91-4
<LOD (0.177) U
<LOD (0.179) U
PFHxS
355-46-4
0.545
<LOD (0.166) U
PFHpS
375-92-8
<LOD (0.116) U
<LOD (0.117) U
PFOS
1763-23-1
2.95
1.22
PFNS
68259-12-1
<LOD (0.0744) U
<LOD (0.0751) U
PFDS
335-77-3
<LOD (0.165) U
<LOO (0.167) U
4:2 FTS
757124-72-4
<LOD (0.102) U
<LOD (0.103) U
6:2 FTS
27619-97-2
<LOD (0.0999) U
<LOD (0.101) U
8:2 FTS
39108-34-4
<LOD (0.147) U
<LOD (0.149) U
Other
PFOSA
754-91-6
<LOD (0.112) U
<LOD (0.113) U
N-McFOSAA
2355-31-9
0.179 J
<LOD (0.125) U
N-EtFOSM
2991-50-6
0.149 J
<LOO (0.0948) U
HFPO-DA
13252-13-6
<LOD (0.196) U
<LOD (0.198) U
PFMOPrA
377-73-1
3.10
<LOD (0.209) U
ADONA
919005-14-4
<LOD (0.103) U
<LOD (0.1041 U
9CI-PF30NS
756426-58-1
<LOD (0.103) U
<LOO (0.104) U
11C1-
PF30UdS
763051-92-9
<LOD (0.103) U
<LOD (0.104) U
3:3 FTCA
356-02-5
<LOD (2.76) U
<LOD (1.25) U
5:3 FTCA
914637-49-3
<LOD (1.79) U
<LOD (0.557) U
7:3 FTCA
812-70-4
<LOD (1.93) U
<LOD (0.557) U
N-EtFOSA
4151-50-2
<LOD (0.207) U
<LOO (0.209) U
N-EtFOSE
1691-99-2
<LOD (6.20) U
<LOD (6.26) U
NFDHA
151772-58-6
<LOD (0.207) U
<LOD (0.209) U
N-McFOSA
31506-32-8
<LOD (0.207) U
<LOO (0.209) U
N-McFOSE
24448-09-7
<LOD (6.20) U
<LOD (6.26) U
PFDoS
79780-39-5
<LOD (1.93) U
<LOD (1.95) U
PFEESA
113507-82-7
<LOD (0.207) U
<LOD (0.209) U
PFMOBA
863090-89-5
<LOD (1.24) U
<LOD (1.25) U
Qualifiers
J -The analyte has a concentration below the minimum calibration
level (LOQ value) but greater than the LOD. These values should be
considered as having measurement uncertainty higher than values
within the calibration range
U -The analyte was not detected.
Town of Ramseur 2022 PAR; Appendix A

Ramsaur
Where Family and Friends Meet
Appendix B IUP 0002
EL&MR Correction
Transmittal

February 28, 2023
MATLAB, Inc.
Mr. Press Bower, VP of Engineering
7307 Jordan Road
Ramseur, NC 27316
Subject: Correction to Part I, Section F, Effluent Limits and Monitoring Requirements for
Industrial User Pretreatment Permit #0002
Dear Mr. Bower:
It was recently noted by the town that Part I, Section F, the Effluent Limits and Monitoring
Requirements table was missing the frequency requirements for the POTW monitoring of the
industry for several pollutant parameters. The town has continued to monitor at the industry
twice per year, but this was not reflected as a requirement in the permit.
Enclosed, please find a corrected Effluent Limits and Monitoring Requirements page (Page 7
of the IUP). Please replace the existing Page 7 of the IUP you have on file with this page. I
have also included a marked up copy of the old Page 7 indicating what was missing, for your
reference.
Please note: There are no limits changes or monitoring frequency changes for what Matlab
currently does. Monitoring of flow should continue as usual with no changes to the
requirements. This edit was to correct a typo only in the town's monitoring responsibilities in
the original permit.
Please do not hesitate to contact me should you have any questions or concerns regarding
your permit or any pretreatment issue.
Thank you,
Town of Ramseur 2022 PAR; Appendix B

Lisa Osthues
Pretreatment Consultant for the Town of Ramseur
[e-mail]
[phone]
Town of Ramseur 2022 PAR; Appendix B

IUP, Part 1 Section F:
Effluent Limits and Monitoring Requirements
The Permittee may discharge from this specific
Pipe number according to these specific dates,
effluent limits, and monitoring requirements
Receiving POTW name =>
Receiving POTW NPDES # _>
Effective date for these Limits =>
Expiration date for these Limits =>
Ramseur POTW
NC0026565
IU name =>
IUP # _>
July 30, 2021 Pipe # _>
December 31, 2025 40 CFR # _>
THE LIMITS ON THIS PAGE ARE, (Check one below):
LIMITS for ENTIRE permit period => X
INTERIM Limits for period # 1 =>
INTERIM Limits for period # 2 =>
FINAL Limits Page =>
MATLAB, Inc.
0002
001
433
if not applicable put N/A
Concentration Limits
Mass Limits
MonitoringFre
uenc
Daily Max
Monthly
Average
Units
Daily Max
Monthly
Average
Units
By Industry
B POTW
Sample
Collection
Method
C or G
Required
Laboratory
Detection
Level
1
Flow
0.025
MGD
Daily'
Each Sample
Estimated
2
TSS
Monitor
m L
1/6 Months
C
2.0 m /L
3
Hydrocarbon Oil
& Grease
Monitor
m /L
1/6 Months
G
5.0 m /L
4
Temperature
400C
°C
missin
G5
1 °C
5
pH
6.0 to 10.0
S.U.
missin
G
1 to 14 S.U.
OTHER PARAMETERS; Please List Al habeticall
6
Cadmium
0.070
m /L(missing)
C
0.002 m /L
7
Chromium
0.500
m /L
Lmissingd
C
0.005 m /L
8
Copper
2.070
m /L
missin
C
0.002 m /L
9
Cyanide 2
0.100
m /L
Lmissingd
C
0.005 m /L
10
Lead
0.200
m /L
Lmissingd
C
0.010 m /L
11
Mercury'
Monitor
m /L
missin
C
5 n /L
12
Nickel
1.000
m /L
missin
C
0.010 m /L
13
Silver'
0.240
m /L
missin
C
0.002 m /L
14
TT04
2.13
m /L
C
15
Zinc
1.480
m /L
missin
C
0.010 m /L
1 See Part III 4. for description of method of flow determination.
2 See Part III 7.
' Mercury analysis shall be performed in accordance with Method EPA 1631 E.
4 See Part III 8, 9 and 10.
5Temperature and pH may be performed as grab samples with a 15-minute hold time or as in situ measurements taken directly in the wastestream flow.
Yellow h�_xhlighted areas were missing in original version ofpermit. These have been corrected in the updated page.
7
Town of Ramseur 2022 PAR; Appendix B