NC0023884_Pretreatment_Annual_Report_20240219

4C
Sa/isbary-R�wa�
PRETREATMENT ANNUAL REPORT
February 9, 2024
Period covered by this report: January 1, 2023 to June 30, 2023
Period covered by this report: July 1, 2023 to December 31, 2023
WASTEWATER TREATMENT PLANT (POTW'S) NPDES PERMIT NUMBER
City of Salisbury WWTP
NCO023884
Person to contact concerning information contained in this report:
NAME: Jeffery A Greer
TITLE: Pretreatment Program Coordinator/
Interim Environmental Services Manager
MAILING ADDRESS: 1915 GRUBB FERRY ROAD
SALISBURY, N.C. 28144-1248
TELEPHONE: (704) - 638-5375 / [phone]
Fax Number: (704) - 704-797-4025
I have personally examined and am familiar with the information
submitted in this document and attachments. Based upon my inquiry of
those individuals immediately responsible for obtaining the information
reported herein, I believe that the submitted information is true,
accurate, and complete. I am aware that there are significant penalties
.ation.
Pretreatment Program Coordinator
TITLE
Interim Environmental Services Manager
TITLE

Sa/isbury�R�wan
City of Salisbury
Pretreatment Program Chain of Command
February 9, 2024
Karen Alexander
Mayor
Brooks, Pierce, McLendon, Humphrey & Leonard
Environmental Counsel
Jim Greene, Jr.
City Manager
Jim Behmer
Utilities Director
Jeffery A Greer
Interim Environmental Services Manager/
Pretreatment Program Coordinator
Casey Banks
Lab Services Supervisor
Johnny Rogers
FOG Program Coordinator
Christina Molnar
Regulatory Compliance Technician
Savanah Snyder
Lab Analyst
Pretreatment Program Contact: Jeffery Greer
1915 Grubb Ferry Road
Salisbury, North Carolina 28144
(704) 638- 5375- office [phone] — desk [phone] FAX

Pretreatment Performance Summary (PPS)
1. Pretreatment Town Name: City of Salisbury
2. 'Primary" NPDES Number NCO023884
or Non Discharge Permit # if applicable =>
3.
PAR Begin Date, please enter 01/01/yyyy
3. => 01/01/2023
4.
PAR End Date, please enter 12/31/yyyy
4. =>
12/31/2023
5.
Total number of SIUs, includes CIUs
5. =>
6
6.
Number of CIUs
6. =>
2
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. =>
1 1
17.
Number of Civil Penalties assessed to SIUs
17. =>
1
18.
Number of Criminal Penalties assessed to SIUs
18. =>
0
19.
Total Amount of Civil Penalties Collected 19. =>
$
4,000.00
20.
Number of IUs from which penalties collected
20. =>
1
votes:
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 2018

Sa/isb�ryR�wa�
General Information for City of Salisbury WWTP
(Grant Creek Treatment Train and Town Creek Treatment Train)
January — December 2023
City of Salisbury WWTP consists of two treatment trains. Effluents from the
Grant Creek and Town Creek treatment trains are disinfected at each train
then combined and dechlorinated at the Yadkin Effluent treatment train,
which is located downstream of Grant Creek treatment train before being
discharged at Outfall 001 into the Yadkin River. Chlorine is primary
disinfection followed by dechlorination.
Design flow of the Grant Creek Treatment Train is 7.5 MGD, Town Creek
Treatment Train is 5.0 MGD and the City of Salisbury WWTP is permitted
at 12.5 MGD.
The Headworks Analyses for Grant Creek and Town Creek Treatment
Trains were approved on February 22, 2018.
Currently, the updated Headworks Analysis has been submitted to DWR.
DWR has acknowledged receipt on September 20, 2022.
The Industrial Waste Survey for both treatment trains was conducted in
2019 and approved by DEQ on December 10, 2019.
The Long -Term Monitoring plan was approved by DEQ on June 22, 2022.
Note: A revised LTMP dated February 8, 2024 has been submitted to the
State for approval. The revision includes the following:
1) Drop Hitachi Metals from the list of industries discharging to
POTW
2) Updated parameter Oil and Grease as now a sampled parameter
for our Uncontrollable Sites.
The Sewer Use Ordinance was approved by PERCS on January 10, 2013
and adopted by City Council on August 20, 2013.
PERCS approved the Enforcement Response Plan on June 17, 2013 and
adopted by City Council on August 20, 2013.

Pretreatment Program Info Database
printed on: 12/22/2023
for Program Name Salisbury
WWTP Name Grant Creek
'rogram Approval Date 10/07/1983
Pretreatment Status Full
Region MRO
County Rowan
Stream Information IWC % at 7Q10 5.27
7010 Flow cfs / mgd 208.79 / 134.88
1Q10 Flow cfs / mgd 169.55 / 109.58
Stream Classification WS-V
Basin Number YAD04
Receiving Stream Name YADKIN RIVER
NPDES Number NCO023884
L
Last PAR Rec 02/16/2023
PAR Due Date03/01/2024
mercury
NPDES Effective Date q 4- 1,i`
kv
1631
NPDES Expire Date
p ��
yCurrent Fiscal
0 it!61202Q- 1
I��I Zv %' `�
required
I.�IU'
Year PCI Done
POTW is Primary WWTP TRUE
Last Audit on 08/09/2021
Audit Year NeA25/26
Design Flow mgd 7.5000 %Design
mgd is SIU permitted
Q 4
Permitted SIU flow (mgd) [Pt SIU) 1$ � l q
WWTP SIU's
Program SIUs
"°'+ 16,
;c ° A
IP
WWTP CIU's
Program CIUs
HWA LTMP
IWS SUO
ER—
date Inactive Date Next Due
11/01/2026
Date Received by DWR
09/20/2022 04/11/2022
09/17/2019 01/03/2013
05/06/2013
Date Approved 06/22/2022 12/10/2019 01/10/2013 06/17/2013
Adopt Date Required
Date Adopted 08/20/2013 .A- /,,,, '.
Pretreatment Related NOVs from DWQ
DWR Central Office Contact lPretreatment Staff
DWR Regional Contact es Bell

City of Salisbury
City of Salisbury WWTP
NPDES NC0023884
Long Term Monitoring Plan
Revised April 1, 2022
Sampling Points and Frequencies:
Salisbury has a unique situation in that we have two Treatment Trains at two separate physical locations
that the SIU's discharge into. The chlorinated effluent from the Town Creek Treatment Train (TE) is
combined with the Grant Creek Treatment Train chlorinated effluent (GE). The combined chlorinated
effluents (YE) join together on the Grant Creek property are dechlorinated, then flow through cascade
aeration, and then discharge into the Yadkin River. Although not permitted as separate WWTPs, Town
Creek and Grant Creek Treatment Trains will be treated as separate WWTPs in the LTMP with data from
both sites used to determine pollutant removal efficiencies and plant inhibition thresholds.
All SIUs and Locals are monitored per IU Permit requirements and all POC's once per year. The City
uses a Yearly Monitoring Plan. The Plan is followed as closely as possible weather permitting. If an SIU
is not monitored in the month indicated, it is monitored as soon as possible.
Uncontrollables are composite and/or grab samples at points in the collection system that serves
residential, commercial (including dentists and other medical), and any unpermitted non-SIUs.
Uncontrollable sampling, though not required, will be monitored annually.
Salisbury will use the actual sludge that is disposed of as our sludge sampling requirement per our sludge
disposal permit (WQ0001956) and EPA 503 regs.
Grant Treatment Train
GR — Grant Influent (sampled post preliminary processes, prior to residual side streams and primary
process).
GE — Grant Effluent (sampled at end of chlorine contact basin)
GAB — Grant Aeration Basin (sampled prior to influent of secondary clarification, due to accessibility)
GS - Grant Sludge to Disposal (digester sludge to disposal, sludge taken at end of belt press)
Town Treatment Train
TR — Town Influent (sampled post preliminary processes, prior to residual side streams)
TE — Town Effluent (sampled at end of chlorine contact basin)
TAB 1 — Town Aeration Basin # 1 (sampled at effluent end of aeration basin)
TAB2 — Town Aeration Basin#2 (sampled at effluent end of aeration basin)
TS - Town Sludge to Disposal ( digester sludge to disposal, sludge taken at end of belt press)
Final Effluent (Yadkin Effluent)
YE — Grant and Town Creek Treatment Trains chlorinated combined effluents are dechlorinated then
composite sampled prior to the cascade.

Industries - Discharae to Grant & Town Creek Treatment Train
FRE — Freirich Foods (Grant)
HIT — Hitachi Metals (Grant)
HXA — Hexagon Agility (Town)
IPC — Innospec Performance Chemicals (Grant)
NRN — Nouryon Surface Chemistry (Grant)
TJN — Teijin automotive Technologies (Grant)
TIIR — Thorneburg Hosiery Mills, Inc. (Town)
Local SIUs and Uncontrollables
PCA — Packing Corporation of America (Local permit)
SPO — SupplyOne (Local permit)
CHG- China Grove (Satellite -uncontrollable)
LDS- Landis (Satellite -uncontrollable)
GRQ- Granite Quarry (Satellite -uncontrollable)
FAI- Faith (Satellite -uncontrollable)
ESP -East Spencer (Satellite -uncontrollable)
SPR-Spencer (Satellite -uncontrollable)
Grant Creek Treatment
Train Sam ling Points and Fre ncy
Sample Location
Sample ID
Description
Sample Type
Sample Frequency
Grant Influent
GR
Influent from collection
24 Hr Composite
system, sampled post
GR and GE sampled
preliminary processes,
quarterly on a
prior to residual side
workday and per
streams and primary
NPDES requirement
process
GAB samples
Grant Aeration
GAB
Effluent from aeration
Grab
Basin
basin, sampled prior to
collected once every
influent of secondary
6 months.
clarification, due to
accessibility
Grant Effluent
GE
Effluent from treatment
24 Hr Composite
train, sampled at end of
chlorine contact basin
Grant Sludge to
GS
Digester sludge to
Grab
GS samples collected
Disposal
disposal, sludge taken at
per sludge permit
end of belt press
WQ0001956 and 503
regulations
Page 2

Town Creek Treatment Train Sam ling Points and Fre uenc
Sample Location
Sample ID
Description
Sample Type
Sample Frequency
Town Influent
TR
Influent from collection
24 Hr Composite
system, sampled post
TR and TE sampled
preliminary processes,
quarterly on a
prior to residual side
workday and per
streams
NPDES requirement
Town Aeration
TAB 1 &
Effluent from aeration
Grab
Basin
TAB 2
basins, sampled
TAB 1 & 2 samples
separately at the effluent
collected once every
end of each aeration
6 months.
basin
Town Effluent
TE
Effluent from treatment
24 Hr Composite
train, sampled at end of
chlorine contact basin
Town Sludge to
TS
Digester sludge to
Grab
TS samples collected
Disposal
disposal, sludge taken at
per sludge permit
end of belt press
WQ0001956 and 503
regulations
City of Salisbury WWTP Sampling Point and Frequency
Code Name Description Type Frequency
YE
Combined
Grant and Town Creek
24 hr composite
sampled quarterly on
Effluent
Treatment
a workday and per
Trains dechlorinated
NPDES requirement
combined effluents
Note: Dechlorinated combined effluent YE (TE + GE = YE) will be analyzed for each of the POCs but
will not be used in the calculation of pollutant removal efficiencies, plant inhibition thresholds or in the
calculation of uncontrollable loadings.
Pollutants of Concern (POC): Reason for Inclusion
Page 3

POC List
NPDES
503 Sludge
SIU Permit Limit
Flow
X
X
X
BOD
X
X
COD
X
TSS
X
X
NH3-N
X
X
NO2+NO3
X
TKN
X
X
Total Phosphorus
X
X
Total Cyanide
X
X
Oil & Grease
X
% Solids
X
As
X
X
Cd
X
X
Cr
X
Cu
X
X
Pb
X
X
Hg
X
Mo
X
Ni
X
X
Se
X
Ag
X
X
Zn
X
X
Chloride
X
Parameter Detection Limits:
Pollutant
*DL, mg/l
Pollutant
*DL,
Mercury
method 245.1
.0002
**Mercury
method 1631E
.001
Nitrite + Nitrate
0.5
Arsenic
2.0
**Oil & Grease
10
Cadmium
0.50
BOD
2
Lead
2.0
COD
20
Silver
1.0
TSS
2.5
Chromium
5
TKN
1.5
Copper
2.0
NH3-N
0.5
Molybdenum
10
Total Phosphorus
0.2
Nickel
2.0
% Solids
25
Zinc
10
Chloride
1.0
Selenium
1.0
Sulfate
2.0
**Total Cyanide
5.0
**Phenol
.010
**Styrene
1.0
Aluminum
050
Barium
10
Antimony
.010
Boron
50
* Detection Limits are typical but may vary with changes in sample matrix or analytical conditions.
**All POCs are 24 hour composites with the exception of Cyanide, Oil & Grease, and Mercury (1631 E method),
Phenol and Styrene which are grabs.
Sampling Plan
Page 4

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GRANT CREEK WASTEWATER TREATMENT TRAIN
1 Plant lnflentm
2 Prelknina ry Treatment
3 Main LM Iaatn 11%et / ffVV
4 Main Lg 2-8
pass®
S PrimaryClar6* IA ielI'll
6 Primary Clarft &cessm
7 Trickling Filter Int / Eflm
B Manhole No. 4 lnflentm
9 Aerates islnki./fl.®
10 Final Clarify kfl-tMM
11 Fin al Clarife gfletMM
12 Chlorine Contact Tank Inf.
13 EfOot P pi ng 5ta. BBe0I✓m
14 Final Clarify MS)®
15 Waste Actwted 9idaeM
Feet
0 40 80 160 `')

TOWN CREEK WASTEWATER TREATMENT TRAIN
PIPING BACKUP POWER SUPPLY
t��tH INFLUENT NO BACKUP POWER
------ —s ---4 DRAIN GENERATOR 1
►----*----1-----► RAS GENERATOR 7
EFFLUENT GENERATOR
1 1=� WAS
Treatment Unit
1 Prmary Treatment Influent
2 Primary Treatment Effluent
3 Man Lift Station Influent
4 Aeration Basin Influent
5 Final Clarifier Inlluant
6 Final Clarifier Effluent
7 Ctlorine Contact Tank Influent
8 Effluent Pump Station Influent
9 Effluent Pump Station Effluent
10 ReturnActivated Sludge
11 Waste Sludge
Design Flow
Average Daly
(MGD)
Flow (MGD)
50
2.096
5.0
2.161
5.0
2. 161
5.0
3.034
5.0
2.161
2.5
1.085
5.0
2.161
5.0
2.161
5.0
2. 161
5.0
0.864
0.07
0.045
AERATION BASIN
g CLARIFIER
CREW
STATION
S
t
AERATION BASIN 4 j
NLORINE CON
11 eAsw
DIGESTER
Feet
0 40 80 160

EFFLUENT TO YADKIN RIVER
Generator
iviolet
X
GRANT AND TOWN CREEK EFFLUENTS COMBINED
Cascade
Post Aerator
SALISBURY ROWAN WWTP
YADKIN EFFLUENT (YE)
Salisburyw�► {�
1 inch = 30 feet

POTW=:
NPDES*=:
IUP
Count
2
3
4
5
6
7
8
9
10
Workbook Name : Grant Creek HWA A i z018_Approved., Worksheet Name: AT Printed: 1/29/2024, ._._4 PM
Page 1 of 4
Allocation Table
Headworks last approved 02/22/18
Allocation Table updated: 02/01 /23
Permits last modified: 10/22/22
Grant Creek WWTT
NCO023884
Spreadsheet Instructions:
t) Applicable Values should be entered in the Heavy Bordered cells. Rest of worksheet is protected, password is "2".
2) Formulas are discussed in the Comprehensive Guidance, Chapter 6, Section C.
3) HWA and AT worksheets in this workbook are linked. Pollutant Names, MAHLs, Basis, and Uncontrollable load in
this AT worksheet are automatically entered from the HWA spreadsheet. This includes pollutant names in columns AT
through BK.
Type Renewal Modification Date
Pipe of Effective Effective Permit
number Industry Date Date Expires
Industry
INDUSTRY NAMES Permit
(please list alphabetich) number
FLOW
Permit Limits
BOD
Permit Limits
TSS
Permit Limits
MGDgal/day
Conc. Load
m I Ibs/da
Conc. Load
m I lbs/da
Nouryon
0002
01
2869-414
09/01/19
04/25/22
08/31/24
0.3830
383.000
300.00
500.00
Tie'in Automotive Technologies
0036
01
3089-463
09/30/19
10/22/22
09/29/24
0.0638
63.800
213.00
213.00
Freirich Foods
0007
01
2013
03/30/21
04/25/22
03/29/26
0.1500
150,000
1520.00
500.00
Innos ec Active Chemicals
0038
01
2843
10/01/22
09/30/27
0.0800
80,000
943.00
86.00
Column Totals =>
0.67681
676.800
2976
1299
Basis=>
MAHL from HWA (Ibs/day) => NPDES Permitted Flow—
Uncontrollable Loading (lbs/day) =>
Total Allowable for Industry (MAIL) (lbs/day) =>
Total Permitted to Industry (Ibs/day) _>
MAIL left (Ibs/day) =>
Percent Allow. Ind. (MAIL) still available (%) =>
Percent MAHL still available (%) =>
5 Percent MAHL (lbs/dav) =>
NPDES
Design
Design
7.5000
20829
20204
5.2390
10923
10923
2.2610
9905.8
9280
0.6768
2976
1299
1.5842
6930
7981
70.1 %
70.0 %
86.0 %
21.1 %
33.3 %
39.5
0.3750
1041
1010
HWA.AT
Revised: November 2005

POTW=
NPDES =
IUP
Count
2
3
4
5
6
7
8
9
10
Workbook Name : Grant Creek_HWA A 11018_Approved., Worksheet Name: AT Printed: 1/29/2024, ._._4 PM
Page 2 of 4
Allnratinn Tahle
Headworks last approved
Allocation Table updated:
Permits last modified:
02/22/18
Pipe
number
02/01/23
10/22/22
Grant Creek WWTT
NCO023884
Industry
INDUSTRY NAMES Permit
(prase fist alphabetich) number
Ammonia
Permit Limits
Arsenic
Permit Limits
Cadmium
Permit Limits
Chromium
Permit Limits
Copper
Permit Limits
Cyanide
Permit Limits
Cone. Load
mg/1 lbs/day
Cone. Load
mgjl lbs/da
Cone. Load
m I Ibs/da
Cone. Load
mg/1 lbs/da
Conc. Load
mg/1 lbs/da
Cone. Load
mg/1 lbs/da
Nouryon
0002
01
219.00
699.53
0.1500
0.0800
0.4200
Tie'in Automotive Technologies
0036
01
15.70
0.0950
Freirich Foods
0007
01
Innos ec Active Chemicals
0038
01
0.0050
0.0080
0.0250
0.0100
0.0067
Column Totals =>
715
1 0.0000
0.0050
0.15801
1 0.2000
1 0.4267
Basis-
MAHL from HWA (lbs/day) =>
Uncontrollable Loading (lbs/day) =>
Total Allowable for Industry (MAIL) (Ibs/day) _>
Total Permitted to Industry (Ibs/day) =>
MAIL left (lbs/day) =>
Percent Allow. Ind. (MAIL) still available (%) =>
Percent MAHL still available (%) =>
5 Percent MAHL (Ibs/dav) =>
NPDES
6946.28
1243.07
5703.21
715.23
4987.97
87.5 %
71.8 %
347.31
AS/NitITF
inhibition
4.6193
0.1879
4.4314
0.0000
4.4314
100.0 %
95.9 %
0.2310
Stream
Std
2.1293
0.1311
1.9982
0.0050
1.9932
99.7 %
93.6 %
0.1065
AS/Nit/TF
inhibition
18.1999
2.1847
16.0153
0.1580
15.8573
99.0 %
87.1 %
0.9100
AS/Nit/TF
inhibition
22.1725
3.0192
19.1533
0.2000
18.9533
99.0 %
85.5 %
1.1086
AS/NitITF
inhibition
4.6193
1.7914
2.8279
0.4267
2.4012
84.9
52.0
0.2310
HWA.AT
Revised: November 2005

POTW
NPDES#=
IUP
Count
2
3
4
5
6
7
8
9
10
Workbook Name : Grant Creek_HWA A 1 &018 Approved., Worksheet Name: AT Printed: 1/29/2024, ._...4 PM
Page 3 of 4
Allocatinn Table I
Headworks last approved
Allocation Table updated:
Permits last modified:
02/22/18
Pipe
number
02/01/23
10/22/22
Grant Creek WWTT
NCO023884
Industry
INDUSTRY NAMES Pen -nit
(p)casc list alphabetich) number
Lead
Permit Limits
Mercury
Permit Limits
Molybdenum
Permit Limits
Nickel
Permit Limits
Selenium
Permit Limits
Silver
Permit Limits
Cone. Load
m /l Ibs/da
Cone. Load
ma/1 lbs/da
Cone. Load
mg/1 lbs/da
Cone. Load
m lbs/da
Cone. Load
m /1 Ibs/da
Cone. Load
m 1 Ibs/da
Nouryon
0002
01
0.1000
0.1600
Tie'in Automotive Technologies
0036
01
Freirich Foods
0007
01
Innos ec Active Chemicals
0038
01
0.0050
0.0150
Column Totals =>
0.1050
1 0.000000
0.0000
0.1750
0.0000
0.0000
Stream
Sludge
AS/Nit/TF
Sludge
Stream
Basis=>
Std
Stream Std
Ceiling
inhibition
Ceiling
Std
MAHL from HWA (lbs/day) =>
9.3087
0.035133
35.1949
11.5482
8.4280
0.2811
Uncontrollable Loading (Ibs/day) =>
2.1410
0.013108
4.6053
0.9176
0.1879
0.2185
Total Allowable for Industry (MAIL) (Ibs/day) =>
7.1677
0.022025
30.5896
10.6306
8.2401
0.0626
Total Permitted to Industry (Ibs/day) =>
0.1050
0.000000
0.0000
0.1750
0.0000
0.0000
MAIL left (lbs/day) =>
7.0627
0.022025
30.5896
10.4556
8.2401
0.0626
Percent Allow. Ind. (MAIL) still available (%) =>
98.5 %
100.0 %
100.0 %
100.0 °/O
100.0Percent
MAHL still available (%) =>
75.9%
62.7 %
86.9%
k098.44
97.8%
22.35
Percent MAHL (Ibs/day) =>
0.4654
0.001757
1.7597
0.4214
0.0141
HWA.AT
Revised: November 2005

POTW=
NPDESS=
IUP
Count
2
3
4
5
6
7
8
9
10
Workbook Name: Grant Creek_HWA A i cOl8_Approved., Worksheet Name: AT Printed: 1/29/2024, ._._4 PM
Page 4 of 4
Allnratinn Tahla
Headworks last approved
Allocation Table updated:
Permits last modified:
02/22/18
Pipe
number
02/01/23
10/22/22
Grant Creek WWTT
NCO023884
Industry
INDUSTRY NAMES Permit
(plcasc list alphabeticly) number
Zinc
Permit Limits
Total Nitrogen
Permit Limits
Total Phos.
Permit Limits
Cone. Load
m I lbs/da
Cone. Load
m /I lbs/da
Cone. Load
m I lbs/da
Nouryon
0002
01
0.4250
130.00
Tie'in Automotive Technologies_
0036
01
0.1900
Freirich Foods
0007
01
Innos ec Active Chemicals
0038
01
0.5000
Column Totals =>
1
1.1150
0.00
130.00
AS/NitITF
Basis=>
inhibkion
MAHL from HWA (Ibs/day) =>
46.1928
Uncontrollable Loading (lbs/day) =>
9.0969
#######
334.25
Total Allowable for Industry (MAIL) (lbs/day) =>
37.0958
Total Permitted to Industry (lbs/day) =>
1.1150
0.00
130.00
MAIL left (Ibs/day) =>
35.9808
Percent Allow. Ind. (MAIL) still available (%) =>
#######
#######
Percent MAHL still available (%) =>
M2.3096
#######
#######
5 Percent MAHL (Ibs/dav) =>
HWA.AT
Revised: November 2005

Pretreatment Annual Report (PAR) PAR covers this calendar year => January -December 2023
Significant Non -Compliance Report (SNCR) Control Authority, Town Name => City of Salisbury
WWTP Name => City of Salisbury WWTP
WWTP = Wastewater Treatment Plant, use separate for for each WWTP. Treatment Train => Grant Creek
SIU = Significant Industrial User NPDES # => NCO023884
SNC = Significant Non -Compliance
A SNCR FORM must 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.
NONE
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.

Nouryon Surface Chemistry, LLC
IUP # 0002
Jan - Jun and Jul- Dec 2023 Monitoring Period:
SNC: None
Orders: None
Authorization to Construct: One
An Authorization to Construct request was received on October 26,
2020 and approved by the City of Salisbury on October 28, 2020 for
the construction of a Groundwater Pretreatment System Unit.
UPDATE 2023: This Construction is nearing completion and has a
projected start-up for Spring/Summer 2024.
Missed Data: None
Permit Reporting Violations Jan -June: None
Permit limit violations Jan -June: None
Penalty Assessed Jan- June: None
Permit Reporting Violations July -December: None
Permit limit violations July -December: None
Penalty Assessed July- Dec: None
The IUP expiration date is August 31, 2024.
A Pretreatment Permit Application was sent to Nouryon on December 1, 2023
which is due to our office for review by June 1, 2024.
Nouryon (NRN) continues to be responsible for the Industrial Pretreatment
Permit compliance for the site. A service agreement between Nouryon and
Henkel delineates the maintenance, operational, and monitoring responsibilities.
Nouryon continues to provide the wastewater pretreatment service for the tenant
operations, Indopco, Inc. (Henkel).
Nouryon is a categorical industrial user that manufactures ingredients used in the
personal care industry.
Henkel Corporation manufactures adhesives used in the electronics industry.

Pretreaiment Annual Report (PAR)
Industrial Data Summary Form (IDSF)
Use separate forms for each industry/pipe
nter BDL values as <(value)
Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) =>
or 6 month 1 /2 BDL Average (mg/1) =>
or Average Loading (lb/d) _>
% violations, (chronic SNC is > 66%) _>
% TRC violations, (SNC is > 33%) _>
Total # of samples =
Maximum (mg/1) =>
or Maximum (lb/d) _
or 6 month 112 BDL Average (mg/1) _
or Average Loading (lb/d) _
• violations, (chronic SNC is >=66%) _
• TRC violations, (SNC is > 33%) _
Total # of samples
=>
Maximum (mg/1)
=>
or Maximum (lb/d)
=>
or 6 month 1 /2 BDL Average (mg/1)
=>
or Average Loading (lb/d)
=>
• violations, (chronic SNC is > 66%)
=>
• TRC violations, (SNC is >=33%)
=>
Control Authority,
Town Name=> City of Salisbury
WWTP Name => Salisbury -Rowan WWTP
Treatment Train => Grant Creek
NPDES # => NCO023884
1st6 months, dates => January 1, 2023-June 30, 2023
2nd 6 months, dates => July 1,2023-December 31,2023
Industry
Name Nouryon Surface Chemistry
IUP # 0002
Pipe # 01
Flow, mgd
BOD
TSS
Ammonia
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1st 6 months
2nd 6 months
181
183
3
4
5
5
3
4
0.284800
0.244600
13.2
44.9
69.5
101.34
161.96
158.62
0.172502
0.12512
1
4.75
13.99
47.3
39.97
131.7
111.5
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
COD
TKN
Chromium
Copper
1 st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
5
5
5
5
3
4
3
4
2050.5
1445.22
76.2
36.2
0.0615
0.0679
0.01248
0.02608
1350.0
1044.8
41.7
29.30
0.0444
0.0513
0.0081
0.0168
0,00%
0.0%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
1 0,00%
0.00%
Nickel
Phosphorus
Sulfate
Cyanide
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
3
4
3
4
3
4
3
4
0.0341
0.0554
10.5
27.58
4392.81
5419.58
0.0049
0.0053
0.0255
0.0417
8.45
14.9
2832.58
3651.42
0.0045
0.0042
0.00%
0,00%
0.00%
0.00%
N/A
N/A
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
N/A
N/A
0.00%
0.00%
POTW must enter at least one of these four rows, BDL => Below Detection Limit mg/I => milligrams liter
Please indicate how averages were calculated Avg period IUP => Industrial User Permit Ib/d => pounds per day
could be month, Qtr, or 6-month & if BDL, 1/2 BDL, or zero SNC => Significant Non -Compliance mgd => millions gallons per day
values used. TRC => Technical Review Criteria WWTP => wastewater treatment plant
Page 1 of 2

Total # of samples =
Maximum (mg/1) =>
or Maximum (lb/d) _
or 6 month 1/2 BDL Average (mg/1) _
or Average Loading (lb/d) _
• violations, (chronic SNC is >=66%) _
• TRC violations, (SNC is >=33%) _
Total # of samples =>
Maximum (mg/1) _>
or Maximum (lb/d) _
or 6 month 1/2 BDL Average (mg/1) _>
or Average Loading (lb/d) _
• violations, (chronic SNC is > 66%) _>
• TRC violations. (SNC is > 33%) _>
Total # of samples =>
Maximum (mg/1) _>
or Maximum (lb/d) _
or 6 month 112 BDL Average (mg/1) _
or Average Loading (lb/d) _
• violations, (chronic SNC is >=66%) _
• TRC violations, (SNC is > 33%) _
Industry
Name: Nouryon Surface Chemistry
IUP # 0002
Pipe # 01
Cyanide(MonthlyAvg.)
Lead
Lead (Monthly Avg.)
Zinc
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
3
3
3
4
3
3
3
4
0.0049
0.0046
0.00158
0.00282
0.00158
0.00282
0.1157
0.3305
0.0045
0.0041
0,00116
0.00187
0.00116
0.0021
0,0783
0.164
0.00%
0.00%
0.00%
0,00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
1 0.00%
0.00%
0.00%
0.00%
0.00%
Zinc (Monthly
Avg.)
Selenium
Silver
Nitrate & Nitrite
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
3
3
1
2
1
2
3
4
0.0025
0,0013
0.0005
0.0005
83.6
75.7
0.1157
0.3305
0.0025
0.0011
0.0005
0.00035
48.2
49.9
0.0783
0.1846
0.00%
0.00%
N/A
N/A
N/A
N/A
N/A
N/A
0.00%
OM%
N/A
N/A
N/A
N/A
N/A
N/A
pH, std units
Temperature
Chloride
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
186
189
186
189
3
4
8.70
9.30
26
30.2
165.51
371.88
----
----
19.5
21.4
149.7
241.6
0.00%
0.00%
0.00%
0.00%
N/A
N/A
0.00%
0.00%
0.00%
0.00%
N/A
N/A
< POTVV must enter at least one of these four rows,
Please indicate how averages were calculated Avg period
could be month, Qtr, or 6-month & if BDL, 1/2 BDL, or zero
values used.
BDL => Below Detection Limit mg/I => milligrams liter
IUP => Industrial User Permit Ib/d => pounds per day
SNC => Significant Non -Compliance mgd => millions gallons per day
TRC => Technical Review Criteria VVVVTP => wastewater treatment plant
Page 2 of 2

Teijin Automotive Technologies
PERMIT #0036
Jan — Jun and Jul- Dec 2023 Monitoring Period:
SNC: None
Orders: None
Missed Data: None
Authorization to Construct 2023: None
Notice of Non -Compliance Jan- June 2023-None
Permit Reporting Violations 2023: One
• Late submittal of the March 2023 Wastewater flow report (0.5 point
assessed).
Permit limit violations Jan -June 2023: TWO
• Permit limit exceedance for parameter Zinc during 1/25/2023 City -
monitoring sampling event
• Permit limit exceedance for parameter COD during 3/16/2023 Self -
monitoring.
Points assessed Jan- June 20210.5 point
Penalties assessed Jan- June 2023: None
Notice of Non -Compliance July -December 2023: One
Notice of Non -Compliance issued for failure to monitor daily parameters pH and
Temperature at the permitted sampling point Pipe # 01 of permit # 0036.
Teijin (TJN) reported a pH process exceedance of more than 10.00 s.u. that occurred on
10/20/2023, 11/4/2023, 11/5/2023 and 11/6/2023. The City of Salisbury Pretreatment
Department (City) acknowledges that Teijin Automotive Technologies historically have not
had any pH exceedances and that the facility staff closely monitor the pH on their processes
due to customer product tight tolerance demands. In addition, the City had requested that
the process (production and paint areas) wastewater pH be reported for process monitoring
purposes and this may have caused a misunderstanding of where to sample daily pH and
temperature. Follow-up investigation conducted by TJN discovered that all the past reported
daily pH and Temperature readings have been taken from their process and not at the
designated sampling site Pipe # 01. Based on investigation findings and past compliance,
the City has determined that the pH data in question were not representative of the entire
facility (process and domestic wastewater combined) and cannot be considered an effluent
pH limit violation of permit #0036. Please note, Teijin staff began reading daily pH and
Temperature at their permitted sampling point (Pipe # 01) on 11/14/ 2023.
Permit limit violations July -December 2023: None
Permit Reporting violations July- December: One
• Late submittal of the September 2023 Wastewater flow report (0.5 point
assessed)
Points assessed July -December- 0.5 point
Penalties assessed July -December: None

Penalties assessed are in accordance to the City of Salisbury's Enforcement
Response Plan. Points accumulated during the July -December 2022 reporting
period were 8.5 points which required a monetary fine assessment of $4000.00.
The penalty was sent to IU on January 18, 2023 with a due date of February 17,
2023. IU received the penalty on January 26, 2023 and collection was pending
at time of the 2022 PAR report.
2023 UPDATE: Payment collection for Penalty was received, per City of
Salisbury Finance, on February 15, 2023.
IUP expiration date is September 29, 2024.
A Pretreatment Permit Application was sent to Teijin Automotive Technologies on
January 2, 2024, which is due to our office for review by June 30, 2024.
Teijin Automotive Technologies manufactures fiberglass exterior parts for the
large truck and golf cart industries.

Pretre_-..._nt Annual Report (PAR)
Industrial Data Summary Form (IDSF)
Use separate forms for each industry/pipe
Enter 13DL values as <(value)
Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) _
or 6 Months using BDL Average (mg/1) _
or Average Loading (lb/d) _
% violations. (chronic SNC is > 66%) _
% TRC violations, (SNC is > 33%) _
Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) =>
or 6 Months using BDL Average (mg/1) =>
or Average Loading (lb/d) =>
% violations, (chronic SNC is > 66%) =>
% TRC violations, (SNC is >=33%) =>
Total # of samples =
Maximum (mg/1) =>
or Maximum (lb/d) _
or 6 Months using BDL Average (mg/1) _
or Average Loading (lb/d) _
% violations, (chronic SNC is >=66%) _
% TRC violations, (SNC is > 33%) _
Control Authority, Industry
Town Name => City of Salisbury Name: Teijin Automotive Technologies
WWTP Name => Salisbury -Rowan WWTP luP # 0036
Treatment Train => Grant Creek Pipe # 01
NPDES # => NCO023884
1st6 months, dates=> January 1,2023-June 30,2023
2nd 6 months, dates => July 1, 2023-December 31,2023
Flow, mgd
BOD
TSS
TKN
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
181
184
4
3
5
5
5
5
0,050300
0.046800
169.9
56.87
67.85
28.24
12.92
13.55
0.032046
0.020097
116.0
41.8
27.89
13.9
9.56
7.17
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%.
0.0%
COD
Ammonia Nitrogen
Copper
Zinc
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
5
4
3
4
3
5
3
791.75
489.08
4.06
6.69
0.00776
0.00376
0.2159
0.0636
325.37
227.30
2.17
4.21
0.0049
0.0031
0.1144
0.0428
16.7%
0.0%
0.0%
0.0%
0.0%
0.0%
20.0%
0.0%
16.7%
0.0%
0.0%
0.0%
0.0%
0.0%
1 0.0%
0.0%
Oil & Grease
pH, std units
Temperature
Phosphorus
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
2
3
187
189
187
189
2
3
9.89
18.3
9.95
10.79
36.11
37.6
6.0
1
6.17
11.26
-----
-----
27.5
27.3
3.7
0.92
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
N/A
N/A
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
N/A
N/A
POTW must enter at least one of these four rows. BDL => Below Detection Limit mg/I => milligrams liter
Please indicate how averages were calculated Avg period IUP => Industrial User Permit Ib/d => pounds per day
could be month. Qtr, or 6-month & if BDL. 1/2 BDL, or zero SNC => Significant Non -Compliance mgd => millions gallons per day
values used. TRC => Technical Review Criteria WWTP => wastewater treatment plant
Page 1 of 2

Total # of samples =>
Maximum (mg/1) _>
or Maximum (lb/d) _>
or 6 Months using BDL Average (mg/1) _>
or Average Loading (lb/d) _>
% violations. (chronic SNC is > 66%) _>
% TRC violations, (SNC is > 33%) _>
Total # of samples
=>
Maximum (mg/1)
=>
or Maximum (lb/d)
_>
or 6 Months using BDL Average (mg/1)
_>
or Average Loading (lb/d)
_>
% violations, (chronic SNC is > 66%)
_>
% TRC violations, (SNC is > 33%)
_>
Total # of samples
Maximum (mg/I)
or Maximum (lb/d)
or 6 Months using BDL Average (mg/1)
or Average Loading (lb/d)
% violations, (chronic SNC is > 66%)
% TRC violations, (SNC is > 33%)
Industry
Name: Teijin Automotive Technologies
IUP # 0036
Pipe # 01
Styrene
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
2
0
0.0025
0.00175
N/A
N/A
N/A
N/A
1 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months
1 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months
< POTW must enter at least one of these four rows,
Please indicate how averages were calculated Avg period
could be month, Qtr, or 6-month & if BDL, 112 BDL, or zero
values used.
BDL => Below Detection Limit mg/I => milligrams liter
IUP => Industrial User Permit Ib/d => pounds per day
SNC => Significant Non -Compliance mgd => millions gallons per day
TRC => Technical Review Criteria WWTP => wastewater treatment plant
Page 2 of 2

FREIRICH FOODS
PERMIT #0007
Jan - Jun and Jul- Dec 2023 Monitoring Period:
SNC: None
Orders: None
Authorization to Construct: None
Missed Data: None
Notice of Non -Compliance (NNC) January -December 2023: None
Permit limit violations Jan -June: None
Permit reporting violations Jan -June: None
Penalties assessed Jan -June: None
Permit limit violations July -December: One (3 points were assessed)
Failure to notify the City of Salisbury Environmental Services within 24
hours of becoming aware of a violation as stated in Freirich Foods
Industrial User Permit Part II General Conditions Section 2 (b).
The following daily pH reading entries were found to be non -compliant
upon City review on the July 2023 wastewater flow report submittal
received on 8/8/2023: July 1st, July 2nd, July 15th, July 24th, July
25th and July 31st.
The Parameter listed below was found to be in VIOLATION of the
Discharge Permit Limitations for your facility on the dates indicated.
Date Parameter Results (s.u.) Permit Limit (s.u.) % Over Limit
7/1/23
pH (Self)
5.53
6.00-10.00
7.8%
7/2/23
pH (Self)
5.92
6.00-10.00
1.3%
7/15/23
pH (Self)
5.88
6.00-10.00
2.0%
7/24/23
pH (Self)
5.98
6.00-10.00
.33%
7/25/23
pH (Self)
5.7
6.00-10.00
5.0%
7/31/23
pH (Self)
5.98
6.00-10.00
.33%
Permit reporting violations July -December: TWO
1) Late Submittal of the July 2023 wastewater flow report (0.5 Points assessed)
2) Failure to Self- monitor for the month of July, per permitted 2/6 monitoring
frequency (2 points were assessed).
Penalties assessed July -December 2023: 5.5 points
Penalties assessed are in accordance to the City of Salisbury's Enforcement
Response Plan. Points accumulated during the July -December 2023 reporting
period were 5.5 points which required a monetary fine assessment of $1000.00.
The penalty was sent to IU on January 2, 2024 with a due date of February 1,
2024.
IU permit expiration date is March 29, 2026.
Freirich Foods is a meat processing plant.

Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) _>
or 6 month using 1 /2 BDL Average(mg/1) _>
or Average Loading (lb/d) _
• violations, (chronic SNC is >=66%) _>
• TRC violations, (SNC is > 33%) _>
Total # of samples =
Maximum (mg/I) =>
or Maximum (lb/d) _
or 6 month using 1 /2 BDL Average(mg/1) _
or Average Loading (lb/d) _
• violations, (chronic SNC is >=66%) _
• TRC violations, (SNC is > 33%) _
Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) _
or 6 month using 1 /2 BDL Average(mg/1) _>
or Average Loading (lb/d) _
• violations,(chronic SNC is > 66%) _>
• TRC violations, (SNC is >=33%) _
Control Authority, lqw
Town Name => City of Salisbury
WWTPName=> Salibury-Rowan WWTP
Treatment Train => Grant Creek
NPDES # => NCO023884
1st 6 months, dates => January 1,2023-June 30,2023
2nd 6 months, dates => July 1, 2023-December 31, 2023
Industry
Name Freirich Foods
IUP # 0007
Pipe # 01
Flow, mgd
BOD
TSS
Oil & Grease
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
179
183
3
2
4
4
3
2
0.113800
0.131400
17.5
5.7
1235.8
921.5
282.0
198.2
0,045521
0.042758
1
7.50
4.1
700.8
723.9
161.9
141.00
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%
0.0%
COD
TKN
Chloride
pH, std units
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
4
4
4
4
3
2
185
188
9.67
9.93
1890.6
1378.6
135.3
88.6
1349.1
1016.4
1260.3
1113.5
89.92
67.1
718.6
751.5
0.0%
0.0 0
0.0%
0.0%
0.0%
0.0%
3.2%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
Temperature
Phosphorus
Molybdenum
Total Zinc
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
185
188
3
2
3
2
3
2
35.3
36.9
131
92.3
0.0204
0.0363
0.502
0.394
19.9
24.2
74.9
91.1
0.0163
0.02065
0.372
0.354
0.0%
0.0%
N/A
N/A
N/A
N/A
N/A
N/A
0.0%
0.0%
N/A
N/A
N/A
N/A
N/A
N/A
POTW must enter at least one of these four rows,
Please indicate how averages were calculated Avg period
could be month, Qtr, or 6-month & if BDL, 1/2 BDL, or zero
values used.
BDL => Below Detection Limit mg/I => milligrams liter
IUP => Industrial User Permit Ib/d => pounds per day
SNC => Significant Non -Compliance mgd => millions gallons per day
TRC => Technical Review Criteria WWTP => wastewater treatment plant
Page 1 of 1

INNOSPEC ACTIVE CHEMICALS
PERMIT #0038
Jan - Jun and Jul- Dec 2023 Monitoring Period:
SNC: None
Orders: None
Missed Data: None
Notice of Non-compliance January- December 2023: None
Authorization to Construct 2023: TWO
1) An Authorization to Construct (A to C) request was received on March 22, 2023 by Salisbury -
Rowan Utilities from Innospec Active Chemicals (IPC). The request included the
installation of the following equipment: A Multi -Disc Screw Sludge Press, an 8,000-gallon sludge
storage tank with agitator, a polymer/feed system and a staging area for a roll off box dumpster.
The system will be enclosed in a new 20' X 20' contained building to be located to the West of
the current Dissolved Air Flotation building. City approval for this A to C was given on
March 27, 2023.
Note: All Construction has been completed and operational (per this A to C) since October 2023.
2) An Authorization to Construct (A to C) request was received on June 29, 2023 by Salisbury -
Rowan Utilities from Innospec Active Chemicals (IPC). The request included the
installation of the following equipment: Reactors # R-22, # R-23, and # R-28. City approval for
this A to C was given on June 30, 2023.Note: Reactor #R-28 was brought on-line and operating
in November 2023.
Permit Reporting violations January- June: None
Permit Limits Violations January- June: One
Notice of Violation issued for permit limit exceedance for parameter Cyanide
during IU's 1/12/23 self -monitoring sampling event.
Penalties Jan -June: None
Permit Reporting violations July- December: ONE
A Notice of violation was issued November 1, 2023 per the late submittal of the
September 2023 IDMR.
Permit Limits Violations July- December: One
A Notice of Violation was issued November 28, 2023 for a permit exceedance for
parameter TKN during a 11/2/23 City -monitoring sampling event.
Penalties July- December: None

Updated Authorization to Construct granted 2021: TWO
1. IPC requested an Authorization to Construct (A to C) on March 23,
2021 for an Expansion Plan Project -Phase 1. The request included
the installation of the following equipment: Three new reactors (#15,
#16, and # 17); two new Flaker Units (#4 and # 5) and Flaker feed
tanks; and a new vacuum system.
All the Expansion Plan Project proposed equipment was City
approved for construction on April 7, 2021.
Also included in this A to C request was an increase in IPC's Zinc
parameter Permit Limits from 0.5 pounds/day to 0.75 pounds/day.
The City denied this Zinc increase request, due in part to insufficient
data to support the request.
UPDATE 2023: Reactors # 15, # 16, and #17 are now on-line.
Flaker Unit # 4 is up and running.
At the time of this report-- Flaker Unit #5 is approximately projected
to start in June 2024.
2. An A to C request was received on July 9, 2021 for IPC's Expansion
Plan Project- Phase 2. The request included the installation of the
following equipment: Four new reactors (# 18, #19, #20 and #21),
associated Vacuum System and Ancillary equipment of condensers,
receivers, and a hot oil heater. Also, in the request was the
manufacture of two new products using a new product line process.
Authorization was granted and approved by the City for this A to C
on July 15, 2021.
UPDATE 2023: Reactors # 18, #19 are now operating and on-line.
At time of this report-- Reactor # 20 is approximately projected
to start in June 2024. Reactor #21 is projected to been operation in
February 2024.
The two new products using new product line process are now being
manufactured.
The IUP expires September 30, 2027.
This SIU manufactures surfactants and emollients for the personal care
industry.
2

'retre nt Annual Report (PAR)
ndustrial Data Summary Form (IDSF)
Jse separate forms for each industry/pipe
nter BDL values as <(value)
Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) =>
or 6 month using BDL Average (mg/1) =>
or Average Loading (lb/d) =>
• violations,(chronic SNC is >=66%) =>
• TRC violations, (SNC is > 33%) =>
Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) _
or 6 month using BDL Average (mg/1) _
or Average Loading (lb/d) _
% violations, (chronic SNC is > 66%) =>
% TRC violations, (SNC is >=33%) =>
Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) _
or 6 month using BDL Average (mg/1) _
or Average Loading (lb/d) _
% violations, (chronic SNC is >=66%) _>
% TRC violations, (SNC is > 33%) _
Control Authority, Industry
Town Name => City of Salisbury Name
WWTP Name => Salisbury -Rowan WWTP luP #
Treatment Train => Grant Creek Pipe #
NPDES # => NCO023884
1st 6 months, dates => January 1, 2023 - June 30, 2023
end 6 months, dates =>July 1, 2023-December 31, 2023
Innospec Active Chemicals
0038
01
Flow, mgd
BOD
TSS
COD
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
181
180
3
4
5
5
5
5
0.080000
0.080000
442.4
177.3
59.74
15.59
917.4
466.01
0.048049
0.050798
259.5
111.80
21.1
7.25
561.3
307.3
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%
0.0%
TKN
Ammonia Nitrogen
Chloride
Cyanide
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
4
5
1
2
1
2
3
3
1.34
3.12
557.0
740.0
0.012
0.004
7.37
17.99
1.34
1.585
557.0
642.5
0.009
0.003
3.09
5.69
0.0%
20.0%
N/A
N/A
N/A
N/A
33.3%
0.0%
0.0%
0.0%
N/A
N/A
N/A
N/A
0.0%
0.0%
NO2 + NO3
Phosphorus
Aluminum
Cadmium
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
2
3
1
2
1
2
2
3
0.0274
0.6856
0.2464
0.32329
1.26
2.27
0.00004
0.00013
0.02192
0.32345
0.2464
0.26575
1.26
1.31
0.00003
0.00006
N/A
N/A
N/A
N/A
N/A
N/A
0.0%
0.0%
N/A
N/A
N/A
N/A
N/A
N/A
0.0%
0.0%
POTW must enter at least one of these four rows, BDL => Below Detection Limit mg/I => milligrams liter
Please indicate how averages were calculated Avg period IUP => Industrial User Permit Ib/d => pounds per day
could be month, Qtr, or 6-month & if BDL, 1 /2 BDL, or zero SNC => Significant Non -Compliance mgd => millions gallons per day
values used. TRC => Technical Review Criteria WWTP => wastewater treatment plant
Page 1 of 2

Total # of samples =
Maximum (mg/1) _>
or Maximum (lb/d) _
or 6 month using BDL Average (mg/1) _
or Average Loading (lb/d) _
• violations, (chronic SNC is >=66%) _
• TRC violations, (SNC is >=33%) _
Total # of samples =
Maximum (mg/1) _>
or Maximum (lb/d) _
or 6 month using BDL Average (mg/1) _
or Average Loading (lb/d) _
% violations, (chronic SNC is >=66%) _
% TRC violations, (SNC is > 33%)
Total # of samples
Maximum (mg/1)
or Maximum (lb/d)
or 6 month using BDL Average (mg/1)
or Average Loading (lb/d)
% violations,(chronic SNC is > 66%)
% TRC violations, (SNC is >=33%)
in u us try
Name Innospec Active Chemicals
IUP # 0038
Pipe # 01
Chromium
Copper
Lead
Nickel
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
2
2
3
1
2
2
3
0.00164
0.00027
0,00384
0.0032
0.000082
0.000269
0.01129
0.00754
0.00164
0.00026
0.0029
0.00223
0.000082
0.000259
0.0062
0.00652
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
1 0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
Phenols
Zinc
pH, std
units
Temperature
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
2
2
3
187
186
187
186
0.692
0.680
7.42
7.55
24.9
28.9
0.32119
0,04068
0.692
0.540
----
----
16.9
19.1
0.2114
0.0289
N/A
N/A
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
N/A
N/A
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
1 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months
< POTW must enter at least one of these four rows,
Please indicate how averages were calculated Avg period
could be month, Qtr, or 6-month & if BDL, 1/2 BDL, or zero
values used.
BDL => Below Detection Limit mg/I => milligrams liter
IUP => Industrial User Permit Ib/d => pounds per day
SNC => Significant Non -Compliance mgd => millions gallons per day
TRC => Technical Review Criteria WWTP => wastewater treatment plant
Page 2 of 2

Pretreatment Program Info Database
printed on: 12/22/2023
for Program Name Salisbury
WWTP Name Town Creek
Program Approval Date 10/07/1983
Pretreatment Status Full
Region MRO
County Rowan
Stream Information IWC % at 7Q10 5.27
7Q10 Flow cfs / mgd 139.20 / 89.92
1 Q10 Flow cfs / mgd 113.36 / 73.26
Stream Classification WS-V
Basin Number YAD04
Receiving Stream Name YADKIN RIVER
NPDES Number NC0023884
,fast PAR Rec 02/16/2023 PAR Due Date03/01/2024 mercury
NPDES Effective Date fig+- '7I1';t�� 1631
Current Fiscal required
NPDES Expire Date p6f3g�" %�3���r' �� Year PC[ Donee 6 f �91 tG�i q
POTW is Primary WWTP FALSE Last Audit on 08/09/2021 Audit Year Next25/26
Design Flow mgd 5.0000 % Design mgd is SIU permitted ®4 Permitted SIU flow (mgd) [Pt—SIU)
WWTP SIU's Program SIUs
WWTP CIU's 1 Program CIUsHWA LTMP IWS SUo ERP
date Inactive Date Next Due 11/01/2026
Date Received by DWR 09/20/2022 02/06/2021 09/17/2019 01/03/2013 05/06/2013
Date Approved
Adopt Date Required
Date Adopted
11/04/2021
12/10/2019
01/10/2013 06/17/2013
08/20/2013'��»I
Info in this Box from Pt Contacts
PT Pro
Formal Name g.Prime Phone1
Date
Attended
ext Fax HWA Wksp
Date
Attended
IUP Wksp
Date
Attended
PAR Wksp
r. Jeffery Greer
Prim
[phone]
04-797-4025
11 1/23/2018
1 5/17/2016
1/29/2019
[e-mail]
Pretreatment Program Coordinator 11915 Grubb Ferry Road
8144
05('r(0N VA-(,lrlll�j
Environmental Services Manager
H
04-797-4025 11
Mr. Mark Monroe
(764) -
S. fi1 a.
7e'F 2 L -j.-73jj
Regulatory Compliance Technician
Mr. Johnny Rogers I
1�04-216-7568
I
VO4-797-4025
II
101/22/2018
F.O.G. Program Coordinator
DWR Central Office Contact JPretreatment Staff
DWR Regional Contact Fes Bell
SQL

POTW
NPDES#=
IUP
Count
2
3
4
5
6
7
8
9
10
Workbook Name: Town Creek HWA A !018_Approved., Worksheet Name: AT Printed: 1/29/20: , )3 PM
Page 1 of 4
Allocation Table
Headworks last approved 02/22/18
Allocation Table updated: 04/25/22
Permits last modified: 04/25/22
Town Creek WWTT
NCO023884
Industry
INDUSTRY NAMES Permit
(Pieass,list eipnebeech) number
Spreadsheet Instructions:
1) Applicable Values should be entered in the Heavy Bordered cells. Rest of worksheet is protected, password is'7'.
2) Formulas are discussed in the Comprehensive Guidance, Chapter 6, Section C.
3) HWA and AT worksheets in this workbook are linked. Pollutant Names, MAHLs, Basis, and Uncontrollable load in
this AT worksheet are automatically entered from the HWA spreadsheet. This includes pollutant names in columns AT
through BK.
Type Renewal Modification Date
Pipe of Effective Effective Permit
number Industry Date Date Expires
FLOW
Permit Limits
BOD
Permit Limits
TSS
Permit Limits
MGDgal/day
Conc. Load
m I lbs/da
Conc. Load
m /l lbs/da
Hexagon Agility
0039
01
3714-433
01/01/22
12/31/27
0.0350
35.000
Tholmeburg Hosiery Mills, Inc.
0034
01
2252
11/01/21
04/25/22
10/31/26
0.1000
250.00
250.00
Column Totals =>
L 0.13501
35,000
250
250
Basis=>
MAHL from HWA (lbs/day) => NPDES Permitted Flow=>
Uncontrollable Loading (lbs/day) =>
Total Allowable for Industry (MAIL) (Ibs/day) =>
Total Permitted to Industry (lbs/day) =>
MAIL left (lbs/day) =>
Percent Allow. Ind. (MAIL) still available (%) =>
Percent MAHL still available (%) =>
5 Percent MAHL (Ibs/dav) =>
NPDES
Design
Design
5.0000
14595
16680
2.1603
4504
5009
2.8397
10090.8
11671
0.1350
250
250
2.7047
9841
11421
95.2 %
97.5 %
97.9 %
54.1 %
67.4 %
68.5
0.2500
730
834
HWA.AT
Revised: November 2005

POTA
NPDES=
IUP
Count
2
3
4
5
6
7
8
9
10
Workbook Name: Town Creek_HWA AT 2018_Approved., Worksheet Name: AT Printed: 1/29/2024, 1:03 PM
Page 2 of 4
Allocation Table
Headworks last approved 02/22/18
Allocation Table updated: 04/25/22
Permits last modified: 04/25/22
Town Creek WWTT
NCO023884
Industry
INDUSTRY NAMES Permit
(please list alphabeticly) number
Pipe
number
Ammonia
Permit Limits
Arsenic
Permit Limits
Cadmium
Permit Limits
Chromium
Permit Limits
Copper
Permit Limits
Cyanide
Permit Limits
Conc. Load
m /I lbs/da
Conc. Load
m 1 lbs/da
Conc. Load
Mg/1 lbs/da
Conc. Load
Mg/1 Ibs/da
Conc. Load
m l lbs/da
Conc. Load
m /1 lbs/da
Hexagon Agility
0039
01
0.0700
0.0204
1.7100
0.4991
2.0700
0.6042
0.6500
0.1897
Thomeburg Hosiery Mills, Inc.
0034
01
0.0510
Column Totals =>
0
0.0 000
0.0204
0.4991
0.6552
0.1897
AS/Nit/TF
AS/Nit/TF
Stream
AS/Nit/TF
AS/Nit(TF
AS/Nit/TF
Basis=>
inhibition
inhibition
Std
inhibition
inhibition
inhibition
MAHL from HWA (Ibs/day) =>
8859.08
1.8456
1.3971
7.2718
8.8591
1.8456
Uncontrollable Loading (lbs/day) =>
450.42
0.0775
0.0541
0.9008
1.0990
0.7387
Total Allowable for Industry (MAIL) (lbs/day) =>
8408.66
1.7682
1.3430
6.3710
7.7601
1.1069
Total Permitted to Industry (lbs/day) =>
0.00
0.0000
0.0204
0.4991
0.6552
0.1897
MAIL left (lbs/day) =>
8408.66
1.7682
1.3226
5.8719
7.1049
0.9172
Percent Allow. Ind. (MAIL) still available (%) =>
100.0 %
100.0 %
98.5 %
92.2 %
91.6 %
82.9 %
Percent MAHL still available (%) =>
94.9 %
95.8 %
94.7 %
80.7 %
80.2 %
49.7 %
5 Percent MAHL Obs/dav) =>
442.95
0.0923
0.0699
0.3636
0.4430
0.0923
HWA.AT
Revised: November 2005

POTW=:
NPDES#=
IUP
Count
2
3
4
5
6
7
8
9
10
Workbook Name: Town Creek_HWA A 1 2018 Approved., Worksheet Name: AT Printed: 1/29/202-, ..J3 PM
Page 3 of 4
Alloratinn Table I
Headworks last approved 02/22/18
Allocation Table updated: 04/25/22
Permits last modified: 04/25/22
Town Creek WWTT
NCO023884
Industry
INDUSTRY NAMES Permit
(please list alphabcticic) number
Pipe
number
Lead
Permit Limits
Mercury
Permit Limits
Molybdenum
Permit Limits
Nickel
Permit Limits
Selenium
Permit Limits
Silver
Permit Limits
Conc. Load
av
Conc. Load
MRVI lbs/da
Conc. Load
m I lbs/day
Conc. Load
mgA lbs/day
Conc. Load
MO lbs/da
Conc. Load
MR/1 lbs/da
Hexagon Agility
0039
01
0.4300
0.1255
2.3800
0.6947
0.2400
0.0701
Thomeburg Hosiery Mills, Inc.
0034
01
Column Totals =>
0.1255
0.000000
0.00001
0.0000
0.0701
Stream
Sludge
AS/Nit/TF
Basis=>
Std
Stream Std
Ceiling
inhibition
MAHL from HWA (lbs/day) =>
6.1077
0.023052
4.3853
4.6141
Uncontrollable Loading (lbs/day)
=> 0.8828
0.005405
0.0901
0.3784
Total Allowable for Industry (MAIL) (lbs/day)
=> 5.2249
0.017647
4.2952
4.2358
Total Permitted to Industry (lbs/day)
=> 0.1255
0.000000
0.0000
0.6947
MAIL left (lbs/day) =>
5.0994
0.017647
4.2952
3.5411
Percent Allow. Ind. (MAIL) still available (%)
_> 97.6 %
100.0 %
100.0 %
83.6 %
Percent MAHL still available (%) =>
83.5 %
76.6 %
97.9 %
76.7
5 Percent MAHL (lbs/dav) _>
0.3054
0.001153
0.2193
0.2307
HWA.AT
Revised: November 2005
Sludge
Stream
Ceiling
Std
3.8591
0.1844
0.0775
0.0901
3.7816
0.0943
0.0000
0.0701
3.7816
0.0242
100.0 %
25.7
98.0 %
13.1
0.1930
0.0092

POTW=:
NPDES#=:
IUP
Count
2
3
4
5
6
7
8
9
10
Workbook Name: Town Creek_HWA AT 2018_Approved., Worksheet Name: AT Printed: 1/29/2024, -i:U3 PM
Page 4 of 4
Allnratinn Table
Headworks last approved 02/22/18
Allocation Table updated: 04/25/22
Permits last modified: 04/25/22
Town Creek WWTT
NCO023884
Industry
INDUSTRY NAMES Permit
(please list alphabetich) number
Pipe
number
Zinc
Permit Limits
Total Nitrogen
Permit Limits
Total Phos.
Permit Limits
Conc. Load
ay
Conc. Load
mg/1 Ibs/da
Conc. Load
m /I Ibs/da
Hexagon Agility
0039
01
1.4800
0.4320
Thorneburg Hosiery Mills, Inc.
0034
01
0.1460
Column Totals =>
0.5780
0.00
0.00
AS/Nlt/TF
Basis=>
inhibition
MAHL from HWA (lbs/day) =>
18.4564
Uncontrollable Loading (lbs/day) =>
3.1530
653.6352
96.93
Total Allowable for Industry (MAIL) (lbs/day) =>
15.3035
Total Permitted to Industry (lbs/day) =>
0.5780
0.00
0.00
MAIL left (lbs/day) =>
14.7255
Percent Allow. Ind. (MAIL) still available (%) =>
#######Percent
MAHL still available (%) =>
M6.
#######5
Percent MAHL Obs/dav) =>
HWA.AT
Revised: November 2005

Pretreatment Annual Report (PAR) PAR covers this calendar year => January -December 2023
Significant Non -Compliance Report (SNCR) Control Authority, Town Name => City of Salisbury
WWTP Name => City of Salisbury WWTP
WWTP = Wastewater Treatment Plant, use separate for for each WWTP. Treatment Train => Town Creek
SIU = Significant Industrial User NPDES # => NCO023884
SNC = Significant Non -Compliance
A SNCR FORM must 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.
NONE
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.

HEXAGON AGILITY, Inc.
PERMIT #0039
Jan - Jun and Jul- Dec 2023 Monitoring Period:
SNC: None
Orders: None
Missed Data: None
Permit limit violations Jan -June: None
Reporting Violations Jan -June: None
Permit limit violations July -December: None
Reporting Violations July -December: None
Notice of Non -Compliance (NNC) January- December: None
Authorization to Construct (A to C): One
Hexagon Agility requested an A to C on September 29, 2022 for a 118,000 square
foot expansion addition to its existing facility. The addition will be used for the
manufacturing and testing of Composite Overwrapped Pressure Vessels. The City
of Salisbury Pretreatment approved this A to C on November 28, 2022 for the
following equipment: An oil and water separator to serve 2 air compressors, a
solids separator, an oil and sand separator and a sample port for sampling.
Hexagon was instructed upon final construction to submit laboratory analysis of
the wastewater discharge generated from the 118,000 to determine if any
adjustments/modifications will be needed to their current Industrial User
Pretreatment Permit. UPDATE 2023: Construction of the 118,000 square foot
building addition should be completed in the first quarter of 2024, and then the
installation of production equipment will begin.
Hexagon Agility manufactures, paints, assembles, packages, ships and installs
compressed natural gas fuel systems for commercial trucks.
Categorical Industrial User 40 CFR 433.17
IU Permit expiration date is December 31, 2027.
Hexagon Agility has been in good standing since first Pretreatment Permit issued
January 2017 maintaining perfect compliance.

Pretre mt Annual Report (PAR)
Industrial Data Summary Form (IDSF)
Use separate forms for each industry/pipe
Enter BDL values as <(value)
Total # of samples =
Maximum (mg/1) =>
or Maximum (lb/d) _
or 6 month using BDL Average (mg/1) _
or Average Loading (lb/d) _
% violations, (chronic SNC is > 66%) _
• TRC violations, (SNC is > 33%) _
Total # of samples =
Maximum (mg/1) =>
or Maximum (lb/d) _
or 6 month using BDL Average (mg/1) _
or Average Loading (lb/d) _
% violations, (chronic SNC is > 66%) _
% TRC violations, (SNC is > 33%) _
Total # of samples =
Maximum (mg/1) =>
or Maximum (lb/d) =
or 6 month using BDL Average (mg/1) =
or Average Loading (lb/d) _
% violations, (chronic SNC is > 66%) _
% TRC violations, (SNC is > 33%) _
Control Authority,
Town Name => City of Salisbury
WWTP Name => Salibury-Rowan WWTP
Treatment Train => Town Creek
NPDES # => NCO023884
1st 6 months, dates => January 1 ,2023-June 30, 2023
2nd 6 months, dates => July 1, 2023-December 31, 2023
Industry
Name Hexagon Agility
IuP # 0039
Pipe # 01
Flow, mgd
Cadmiun
Chromium
Copper
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
164
163
3
2
3
2
3
2
0.023295
0.020222
0.0001
0.00005
0.0028
0.0005
0.004
0.0040
0.014105
0.009391
0.000067
0.00005
0.0013
0.0005
0.0032
0.0039
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%
0.0%
Cyanide
Lead
Nickel
Silver
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
3
2
3
2
3
2
3
2
0.004
0.0025
0.0005
0.0005
0.002
0.0005
0.00025
0.00025
0.003
0.0025
0.0005
0.0005
0.0012
0.0005
0.0002
0.00025
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%
0.0%
Zinc
pH, std
units
Temperature
Aluminum
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
3
2
168
165
168
165
3
2
0.0242
0.0177
8.50
8.09
32.1
30.6
0.852
0.401
0.01237
0.0114
----
----
23.8
24.4
0.4917
0.345
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
N/A
N/A
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
N/A
N/A
POTW must enter at least one of these four rows, BDL => Below Detection Limit mg/I => milligrams liter
Please indicate how averages were calculated Avg period IUP => Industrial User Permit Ib/d => pounds per day
could be month, Qtr, or 6-month & if BDL, 112 BDL, or zero SNC => Significant Non -Compliance mgd => millions gallons per day
values used. TRC => Technical Review Criteria WWTP => wastewater treatment plant
Page 1 of 2

Total # of samples
=>
Maximum (mg/1)
=>
or Maximum (lb/d)
=>
or 6 month using BDL Average (mg/1)
=>
or Average Loading (lb/d)
=>
• violations, (chronic SNC is >=66%)
=>
• TRC violations, (SNC is > 33%)
=>
Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) =>
or 6 month using BDL Average (mg/1) =>
or Average Loading (lb/d) =>
% violations, (chronic SNC is > 66%) =>
% TRC violations, (SNC is > 33%) =>
Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) =>
or 6 month using BDL Average (mg/1) =>
or Average Loading (lb/d/106can) =>
% violations, (chronic SNC is > 66%) =>
% TRC violations, (SNC is > 33%) =>
Industry
Name Hexagon Agility
IuP # 0039
Pipe # 01
TTO*
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
*Certifies for TTO as
Not Being
Present
1 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months
1 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months 11 st 6 months 12nd 6 months
< POTW must enter at least one of these four rows,
Please indicate how averages were calculated Avg period
could be month, Qtr, or 6-month & if BDL, 1/2 BDL, or zero
values used.
BDL => Below Detection Limit mg/I => milligrams liter
IUP => Industrial User Permit Ib/d => pounds per day
SNC => Significant Non -Compliance mgd => millions gallons per day
TRC => Technical Review Criteria WWTP => wastewater treatment plant
Page 2 of 2

THORNEBURG HOSIERY MILLS, INC.
PERMIT #0034
Jan - Jun and Jul- Dec 2023 Monitoring Period:
SNC: None
Orders: None
Authorization to Construct: None
Missed Data: None
Penalties: None
Reporting Violations Jan -June: None
Permit limit violations Jan -June: None
Reporting Violations Jan -June: None
Permit limit violations July -December: None
The IUP expires on October 31, 2026.
Thorneburg Hosiery Mills, Inc. is a textile industry that dyes, washes, and
packages socks.

'retr( ?nt Annual Report (PAR)
ndustrial Data Summary Form (IDSF)
Jse separate forms for each industry/pipe
Enter BDL values as <(value)
Total # of samples =
Maximum (mg/1) =>
or Maximum (lb/d) =
or 6 month using BDL Average (mg/1) =
or Average Loading (lb/d) _
• violations, (chronic SNC is > 66%) _
• TRC violations, (SNC is >=33%) _
Total # of samples
=>
Maximum (mg/1)
=>
or Maximum (lb/d)
=>
or 6 month using BDL Average (mg/1)
=>
or Average Loading (lb/d)
=>
• violations, (chronic SNC is > 66%)
=>
• TRC violations, (SNC is > 33%)
=>
Total # of samples =>
Maximum (mg/1) =>
or Maximum (lb/d) _
or 6 month using BDL Average (mg/1) _>
or Average Loading (lb/d) _
• violations, (chronic SNC is > 66%) _
• TRC violations, (SNC is >=33%) _
Control Authority,
Town Name => City of Salisbury
WWTP Name => Salisbury -Rowan WWTP
Treatment Train => Town Creek
NPDES # => NCO023892
1st 6 months, dates => January 1, 2023 - June 30, 2023
2nd 6 months, dates => July 1, 2023-December 31, 2023
Industry
Name Thorneburg Hosiery Mills, Inc.
IuP # 0034
Pipe # 01
Flow, mgd
BOD
TSS
COD
1 st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
1 st 6 months
2nd 6 months
167
127
3
2
3
2
3
2
0.035327
0.028616
8.6
160.6
1.79
2.118
24.4
38.8
0.012400
0.012256
4.5
87.5
1.46
1.55
22.2
32.7
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%
0.0%
TKN
Copper
Chloride
Temperature
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
3
2
3
2
2
1
99
97
47.5
43.5
0.793
0.74
0.0022
0.0015
2.43
2.8
32.5
34.3
0.57
0.64
0.0017
0.0014
1.97
2.8
0.0%
0.0%
0.0%
0.0%
N/A
N/A
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
N/A
N/A
0.0%
0.0%
Antimony
Chromium
Zinc
pH, std
units
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
3
1
3
1
3
2
99
97
9.58
9.78
0.0013
0.00008
0.0003
0.00024
0.0461
0.0453
0,00076
0.00008
0.00026
0.00024
0.0364
0.0384
N/A
N/A
N/A
N/A
0.0%
0.0%
0.0%
0.0%
N/A
N/A
N/A
N/A
0.0%
0.0%
0.0%
0.0%
POTW must enter at least one of these four rows. BDL => Below Detection Limit mg/I => milligrams liter
Please indicate how averages were calculated Avg period IUP => Industrial User Permit Ib/d => pounds per day
could be month, Qtr, or 6-month & if BDL, 1/2 BDL, or zero SNC => Significant Non -Compliance mgd => millions gallons per day
(values used. TRC => Technical Review Criteria WWTP => wastewater treatment plant
Page 1 of 1

GRANTS CREEK WASTEWATER TREATMENT TRAIN
PIPING BACKUP POWER SUPPLY
•+++ INFLUENT GENERATOR 1
DRAIN GENERATOR
RAS GENERATOR 3
EFFLUENT NO POWER NEEDED
�+ WAS
Treatment Unit Design
Flow (MGD)
1 Plant Influent 7.5
2 Preliminary Treatment 3.8
3 Main LiftStation Influent/Effluent 7.5
4 Main LiftStation Bypass 0
5 Primary Clarifier Influent 6.9
6 Primary Clarifier Excess 0.6
7 Equalization Basins 6.9
8 Manhole No. 4Influent 14.4 AERATION BASIN
9 Aeration Basin Influent/Effluent 15
10 Final Clarifier Influent 7.5
11 Final Clarifier Effluent 3.8
12 Chlorine Contact Tank Influent 7.5
13 Effluent Pumping Station Effluent 7.5
14 Final Clarifier(RAS) 3.8
15 RAS/WAS Pump Station
!4
t
RiDMarsETTuxc SECONDARY
enSIN
CLARIFIER
/lx �1J EQUALIZATION 1 D C nks . Il wnrsErruxo y
aeslx TANK#7 ., 13
O
i
SECONDARY
II 1 T CLARIFIER 'FWMT
WLb9TPn0
s 10
SE.,. IS 11
l J IEESTER EQUALIZATION
Sl s TANK#2
DIGESTER#2 x SECONDARY
CLARIFIER
s DIGESTER##1 T \ ❑ �' V
m`
orEx noxs
IS
c
O MOV
DEGw 6 BYPASS
SIDE SIREAM
W O
MI'MTI
W MPSCREE4
`� 5 BBM9CflEEH
® Feet
0 2040 80 120 160 Map printed 2/14/24

TOWN CREEK WASTEWATER TREATMENT TRAIN
PIPING BACKUP POWER SUPPLY
++� INFLUENT NO BACKUP POWER
F—F DRAIN 0 GENERATOR 1
-ter--r RAS GENERATOR 2
EFFLUENT 0 GENERATOR
WAS
Treatment Unit Design S IER
Flow (NIGD)
1 Primary Treatment Influent 5.0
2 Primary Treatment Effluent 5.0 (10
3 Main Lift Station Influent 5.0 CREW PUM
4 Aeration Basin Influent 5.0
STATION
5 Final Clarifier Influent 5.0
6 Final Clarifier Effluent 2.5 f�l i 6
7 Chlorine Contact Tank Influent 5.0 5 FIER
8 Effluent Pump Station Influent 5.0
9 Effluent Pump Station Effluent 5.0 3
4
10 Return Activated Sludge 5.0
11 Waste Sludge 0.07 11
7
CHLORINE T
BASIN
11
DIGESTER cQ TANKS 8
EFFLUENT ❑
UMP STATI
9
SLUDGE
PRESS II
DIGESTER T
ASTE
PUMP
11TATN]
-r
z
r
�E P M
TR NT
v+
S
r—.
111
® Feet _.
0 20 40 80 120 160 Map printed 11/28/18

Treatment Unit Design
Flow (MGD)
1 Parshall Flume 40.0
2 Dechlorinaton 40.0 EFFLUENT TO YADKIN RIVER
3 Cascade Aeration 40.0
GENERATOR
CASCADE
tL/ POSTAERATOR `•,
DECHLOR TANKS ;
11 J X�
\'O9
4S
<iQG/Q yq4`F
OFOy(O <v��
R
GRANTANDTOWN CREEK EFFLUENTS COMBINED SALISBURY-ROWAN WWTP
YADKIN EFFLUENT (YE)
finch =30 feet w e
/^ Map printed 2/13124 s