NC0021504_Pretreatment_Annual_Report_20230223

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TOWN ATED 19 , NC •� Pretreatment Program
INCORPORATED 1901
Febmary 21, 2023
Mr. Jfichael hlontebello
NCDEQ/D\W.'Als..i ipal Unit
1617 NGil Sectice Center
Raleigh,NC 276994617
RE: 2022 Toam of Biscoe Pretreatment Asmual Report, NC0021504
Dear \B. illomebello:
Enclosed, please fund dse 20LT Pmuratment dnnual Report for the Toum of Biscoe, NC0021504.
I certify-, under penalty- oFGm, that dus documnu and all attacluneun n-rn prepued under direction or supervision in accordance vvdr a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on ary inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the information,
the inf—tion submitted is, to the best of my knowledge and belief, true, accurate, and complete- I
auu aware that there are significant penalties for subntittbrg Glse urfornsation, including the possibility
of finesand imprisonment for knowing violations.
Should you have any questions or require additional infornation, please do not hesitate to contact
out at ttre phone number or entail listed below•. Thant: you for roar assistance, and I --t your
comments.
Regards,
Sao—, R- Stewart
Director of Public N orks
Town of Biscoe
[phone]
110 W MAIN ST I SISCOE, NORTH CAROLINA 27209 1 TELEPHONE [phone] I FAX [phone]
W W W.TOWNOFHISCOE.COM
1 of23 2/21/2023, 8:12 AM

iI[O
Pretreatment Annual Report
2022
Town of Biscoe, NC
NC0021504

TOWN OF BISCOE
Pretreatment Annual Report
2022
I. NARRATIVE
II. PRETREATMENT PERFORMANCE SUMMARY (PPS)
III. SIGNIFICANT NON-COMPLIANCE REPORT (SNCR) AND STATE DATABASE
SNC SHEET
IV. INDUSTRIAL DATA SUMMARY FORMS (IDSF)
A. CAROLINA DAIRY/SAPUTO; SIU PERMIT 001
B. GREDE II; SIU PERMIT 002
V. TOWN OF BISCOE WWTP ALLOCATION TABLE
VI. SIU EFFLUENT LIMITS AND MONITORING REQUIREMENTS
A. CAROLINA DAIRY/SAPUTO; SIU PERMIT 001
B. GREDE II; SIU PERMIT 002
APPENDIX A: COPIES OF AUTHORIZATION TO CONSTRUCT LETTERS TO CAROLINA
DAIRY/SAPUTO, SIU 001 FOR CHANGES TO THE PRETREATMENT PROCESS

Narrative

TOWN OF BISCOE
NPDES# NCO021504
2022 Pretreatment Annual Report Narrative
GENERAL INFORMATION:
A. General Program Information:
1. Program Updates
• The Town of Biscoe Wastewater Treatment Plant continues to operate
under NPDES discharge permit NC0021504, effective August 1, 2021.
• A Pretreatment Compliance Inspection was conducted by the Fayetteville
Regional Office on September 7, 2022, and the program was found to be
in compliance.
• Additional Silver monitoring has been conducted at the influent, effluent,
and industries in 2020 through 2022 (after the last approved headworks
analysis in 2019). All samples returned values of <0.0005 or <0.0004
mg/L. These data will resolve the apparent overallocation of Silver in the
AT of the HWA. Additional data will be collected per the STMP in 2023 for
the update to the HWA in 2024.
2. Pretreatment Program Information Sheet.
• A pretreatment program information sheet was provided by DWR, and it
can be found following this narrative. All items on the program sheet are
correct.
B. Industrial Users and Compliance Information.
1. Carolina Diary (IUP # 0001)
• This SIU was purchased by Saputo Cheese USA Inc., and the permit will
be modified to reflect the new permit holder.
• This SIU performed all sampling and reporting as required and was
inspected once and sampled twice by the POTW. STMP parameters for the
industry were sampled and tested in the second half of the year.
• During 2022, production for this industry remained fairly consistent. No
changes to products or raw materials were made in 2022.
• During 2022, the industry requested, and was approved for, modifications
to the pretreatment process at the facility. These changes have resulted
Page 1 of 2
Town of Biscoe PAR Narrative 2022

in an improved effluent quality and overall greater compliance with the
IUP EL.
o In February of 2022, the industry was approved to cease the use of
the ozone treatment in the pretreatment process, and to repurpose
the ozone tank for pH adjustment. Results for BOD improved
following these changes.
o In March of 2022, the industry was approved to cease the use of
the MBBR portion of the pretreatment, as it was apparently
negatively impacting the industry's ability to remove TSS from the
final effluent and did not contribute to a significant overall
reduction in BOD.
Copies of the A to C authorizations have been included as Appendix A in
this report, and the permit will be modified to reflect the changes to the
pretreatment train.
• Permit final limits applied for the whole year of 2022. A copy of the ELMR
is included with this report.
• The industry was issued 3 NOVs covering 5 violations, and 3 fines totaling
$1000.00 during 2022. The industry notified the POTW as required,
identified the causes for the violations and returned to compliance. The
industry was not in SNC for either period of 2022.
2. Grede II (IUP # 0002)
• This CIU was inspected once and sampled twice by the POTW. STMP
parameters for the industry were sampled and tested in the second half of
the year. A full TTO was conducted by the POTW during the second
sampling event in 2022.
• The industry conducted all sampling as required under their IUP.
• During 2022, production for this industry remained fairly consistent. No
changes to products or raw materials were made in 2022.
• In January of 2022, the industry notified the POTW that the flow meter
had gone down. The POTW allowed the industry to estimate flow briefly
while a replacement meter was located and installed. The installation was
completed on February 7, 2022.
• The industry was compliant with all effluent limits and monitoring
requirements during 2022 and received no violations.
Page 2 of 2
Town of Biscoe PAR Narrative 2022

Pretreatment Program Info Database
printed on: 1 /19/2023
for Program Name BiSCoe
WWTP Name Town of Biscoe
Program Approval Date 06/06/2016
Pretreatment Status Modified
Region FRO
County Montgomery
Stream Information 1 IWC % at 7Q10 100.00
7Q10 Flow cfs / mgd 0 / 0.00
1Q10 Flow cfs / mgd 0.00 / 0.00
Stream Classification C
Basin Number 03-07-15
Receiving Stream Name Hickory Branch
NPDES Number NC0021504
NPDES Effective Date
Last PAR Rec 02/28/2022
PAR Due Date03/01/2023
mercury
08/01/2021
1631
NPDES Expire Date
p� 06/30/2026
Current Fiscal 07/27/2020
required
Year PCI Done
POTW is Primary WWTP TRUE
Last Audit on 08/23/2021
Audit Year Nex125/26
Design Flow mgd 0.6000 % Design
mgd is SIU permitted
22.17
Permitted SIU flow (mgd) [Pt_SIU) 133
WWTP SIU's
2 Program SIUs 2
WWTP CIU's
1 Program CIUs11
HWA LTMP
IWS SUO
ERP
date Inactive Date Next Due
04/30/2024
06/30/2025
Date Received by DWR
05/22/2019 09/27/2019
06/29/2020 07/23/2014
05/15/2020
Date Approved
08/20/2019 02/14/2020
09/24/2020 07/28/2014
08/11/2020
Adopt Date Required
Date Adopted
08/11/2014
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. Brandon Holland
Town Manager
1P.0. Box 1228
27209
Ms. Lisa Osthues
1Prim
[phone]
[e-mail]
Pretreatment Consultant
1168 Nathan Dudley Rd.
28328
Mr. Sam Stewart
1 11910
428-4112
L
1910-428-3975
[e-mail]
Public Works Director
PO BOX 1228
27209
Pretreatment Related NOVs from DWQ DWR Central Office Contact JPretreatment Staff
DWR Regional Contact Istephanie Zorio

Pretreatment Performance
Summary

Town of Biscoe PPS 2021
Chapter 9, PAR Guidance
Pretreatment Performance Summary (PPS)
1. Pretreatment Town Name: Town of Biscoe
2. " Pri mary" N PD ES N umber N C00 21504
or N on_D i scharge Permi t# i f appl i cabl e =>
3.
PAR Begin Date, pl ease enter 01 /01 /yyyy
3. =>
01 /01 /2022
4.
PAR End Date, pl ease enter 12/31 /yyyy
4. =>
12/31 /2022
5.
Total number of SI Us, includes Cl Us
5. =>
2
6.
Number of CI Us
6. =>
1
7.
Number of SlUswith no IUP, or with an expired IUP
7. =>
0
8.
Number of SI Us not inspected by POTW
8. =>
0
9.
Number of SI Us not sampled by POTW
9. =>
0
10.
Number of SI Us in SNC due to I UP Limit violations
10. =>
0
11.
Number of SI Us in SNC due to Reporting violations
11. =>
0
12.
Number of SIUs in SNC dueto violation of a Compliance Schedule, CO, AO or similar
12. =>
0
13.
Number ofClUsinSNC
13.=>
0
14.
Number of SI Us included in Public Notice
14. =>
0
15
Total number of SI Us on a compliance schedule, CO, AO or si mi I ar
15. =>
0
16.
Number of NOVs, NNCsor similar assesed to SIUs
16. =>
3
17.
Number of Civil Penalties assessed to SI Us*
17. =>
3
18.
N umber of Cri mi nal Penal ti es assessed to SI U s
18. =>
0
19.
Total A mount of Ci vi I Penal ti es Col I ected 19. =>
$
1000
20.
Number of IUsfrom which penal ti es col I ected
20. =>
1
*Notethat NOVs may cover multiple violations and combined civil penalties
AO
Administrative Order
CIU
Categorical Industrial User
CO
Consent Order
I
Industrial User
IUP Industrial User Pretreatment Permit
NNC Noticeof Non -Compliance
NOV Noticeof Violation
PAR Pretreatment Annual Report
POTW Publicly Owned Treatment Works
SIU Significant Industrial User
SNC Significant Non -Compliance
revised 1 /2018: PAR PPS 2022

Significant Non -Compliance
Report

Pretreatment Annual Report (PAR)
Significant Non -Compliance Report (SNCR)
WWTP = Wastewater Treatment Plant, use separate form for each WWTP.
SIU = Significant Industrial User
SN C = Si gni f i cant N on -Comps i ance
PAR covers this calendar year =>
Control Authority=Program=Town Name =>
A SNCR Form must besubmitted with every PAR, pl ease wri te " None" if you had No SIUs in SNC during calendar year
WWTP Name =>
N PD ES # _>
I UP
#
Pipe
#
I ndustry Name
Parameter
or "Reporting"
SNC? (Yes/No)
for each 6-month period.
Jan. - June
July - Dec.
0001
001
Carolina Dairy / Saputo
None
No
No
0002
001
Grede 11, AA M Castings
None
No
No
Attach a copy of the Division's "SI Us in SNC Historical Report" for your POTW's SI Us behind this page.
Isthe database correct ? Notify the Division of any errors ! Database indicates SNC history for previous years.
EVERY SNC MUST beexplained in the Narrative, How was, is, or will it be resolved?
REPEAT SNCs are seri ous matters that M UST be expi ai ned i n the Narrative.
PAR,SNCR, Biscoe2022
2022
Town of Biscoe
Biscoe WWTP
N CO021504

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
Carolina Dairy, LLC PreviousNames:
IUP # 001 Pipe # 001 SIU Word Description:
Dairy
IUP Status: Active
BOD Ix xIx xIx xIx xI
Grede Il, AAM Castings, Blscoe LLC PreviousNames: Grede II, Biscoe LLC
UP # 002 Pipe # 001 SIU Word Description:
IUP Status: Active
Reporting I X I X I I I
All SNC listing are correct.
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. PAGE 7
Contact the local pretreatment coordinator or state pretreatment staff if errors are noted.

Industrial Data Summary
Forms

Pretreatment Annual Report (PAR)
Industrial Data Summary Form (IDSF)
Use separate forms for each industry/pipe
Enter BDL values as < (value)
AVERAGES CALCULATED USING ALL INDUSTRY AND POTW
VALUES.
Total # of samples
* Maximum (mg/1)
* or Maximum (lb/d)
or Average(mg/1)
or Average Loading (Ib/d)
# Violations / # TRC
violations,(chronic SNC is>= 66%)
% TRC A of ati ons, (SNC i s >= 33 %)
Total # of samples
* Maximum (mg/1)
* or Maximum (Ib/d)
* or Average(mgI)
* or Average Loadinq (Ib(d)
# Violations/ # TRC
% violati ons, (chronic SNC is>= 66%)
% TRC vi of ati ons, (SNC i s >= 33 %)
Control Authority, Industry
Town Name=> Town of Biscoe Name Carolina Dairy/Saputo
WWTPName => Town of Biscoe WWTP IUP# 001
NPDES#=> NCO021504 Rpe# 001
1st 6 months, dates=> 1/1/2022 6/30/2022
2nd 6 months, dates=> 7/1/2022 12/31/2022
Flow, Daily Max, MGD I Flow, Mo. Avg. MGD I pH, S.U. I BOD, Mo. Avg., mg/L
1st 6 months 12nd 6 months 11st 6 months 12nd 6 months 11st 6 months 12nd 6 months 11st 6 months 12nd 6 months
Min=6.7 I Min=6.2
0 1 0
TSS, Mo. Avg., mg/L
Oil & Grease; Daily Max,
m L
Mo. Avg. Temp, °F (POTW
onl
Daily Max Temp, °F
POTW only)
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
=> 6
6
7
7
2
1
2
4
=> 849
1059
13
13
96
79
96
81
=> 329
328
7
5
58
79
58
79
=> 2/1
1/1
0/0
0/0
0/0
0/0
0/0
0/0
=> 33.3%
16.7%
0%
0%
0%
0%
0%
0%
=> 16.7%
16.7%
0%
0%
0%
0%
0%
1 0%
Ammonia, mg/L, POTW
monitor only onceper year
Arsenic, mg/L, POTW
monitor only once per year
Cadmium, rl POTW
I monitor only once per year
Chromium, mg/L, POTW.
Imonitor only once per year
1st 6 months 2nd 6 months 1 1st 6 months 2nd 6 months 1 1st 6 months 2nd 6 months 1 1st 6 months 2nd 6 months
Total # of samples=>
* Maximum (mg/1)=>
* or Maximum (lb/d)=>
* or Average (mg/1) =>
* or Average Loading (I b/d) =>
# V i of all ons / # TRC =>
% vi ol ati ons,(chronic SNC is>= 66%) =>
%TRC violations, (SNC is>= 33 %) =>
-�-
111
� 1111
111
BDL => Below Derelion Limit mgtl => milligrams Per liter
POTW must enter at law oneof these IUP=> Industrial User Permit Ib/d => pounds per days
fourrows, Please indicate how averages werecdculatei SNC=> Significard Non -Compliance ngd=> million gdIos per days
Avg period could be month, Otr, a 6-month & if BDL , 1/2BDL, or zero vel ues used. TRC => Technical Review Criteria W WTP=> wastewater treatnw plant
I DSF I UP 0001 Carolina Dairy 2022

Pretreatment Annual Report (PAR)
Industrial Data Summary Form (IDSF)
Use separate forms for each industry/pipe
Enter BDL values as < (value)
Industry Name Carolina Dairy/Saputo
IUP# 002
Pipe # 001
Molybdenum, mg/L,
Copper, mg/L, POTW
Lead, mg/L, POTW
Mercury, mg/L, POTW
POTW monitor only once
monitor only once per year
monitor only once per year
monitor only once per year
per year
1st 6 months I 2nd 6 months
Total # cf sampl es => 1
Maximum (mgtl) => 0.002
or Maximum (Ib/d) =>
or Average (mgfl)=> 0.002
or Average Loading (Ib/d) =>
# Violations / # TRC => NA
% violations, (chronic SNC is>= 66%) _> NA
%TRC violations, (SNC is>= 33%) => NA
Nickel, mg/L, POTW
monitor only once per year
1s4 6 months 2nd 6 mnnths
1st 6 months
2nd 6 months
1st 6 months
12nd 6 months
1st 6 months 2nd 6 months
1
1
1
<0.0005
<0.0002
<0.002
<0.0005
<0.0002
<0.002
NA
NA
NA
NA
NA
NA
NA
NA
NA
Selenium, mg/L, POTW
monitor only once per year
Slver, mg/L, POTW
monitor only once per year
Zinc, mg/L, POTW
monitor only once per
14 R mnnths 2nd 6 mnnths
st 6 onthsInd fi nxi
1mnths
1st F months Ind fi months
Total #of samples=-
Maximum (mg/I) _-
or Maximum (Ib/d) =-
or Average (mcyl)=-
or Average Loadi nq (I b/d) =-
#Violations / # TRC =-
%violations,(chronic SNC is>= 66%) =-
% TRC violations, (SNC is>= 33 %) =-
Total # of sampl es =-
Maximum (mgtl) _-
or Maximum (Ib/d) _-
or Average (mgtl)=-
or Average Loadi ng (I b/d) _-
# Violations / # TRC =-
% viol ations,(chronic SNC is>= 66%) _-
%TRC violations, (SNC is>= 33 %) _-
-0-0-0-0
Cyanide� mg/L, POTW
BDL => Be ow Detection Limit mg1l => milligrams perliter
POTW must enter at least one of these I UP => Industrial User Permit I hod => pounds per day
four rows, Please 1ndirde how werages were cal culated SNC =>significant No Carpliance mgd=> million gallons per day
Avo period could be month. Otr. a 6-month & if BDL . 112BDL, orzero valuesuse]. TRC => Technical Review Criteria W WTP => wastewater treatment plant
I DSF I UP 0001 Carolina Dairy 2022
Cyanide� mg/L, POTW
BDL => Be ow Detection Limit mg1l => milligrams perliter
POTW must enter at least one of these I UP => Industrial User Permit I hod => pounds per day
four rows, Please 1ndirde how werages were cal culated SNC =>significant No Carpliance mgd=> million gallons per day
Avo period could be month. Otr. a 6-month & if BDL . 112BDL, orzero valuesuse]. TRC => Technical Review Criteria W WTP => wastewater treatment plant
I DSF I UP 0001 Carolina Dairy 2022
BDL => Be ow Detection Limit mg1l => milligrams perliter
POTW must enter at least one of these I UP => Industrial User Permit I hod => pounds per day
four rows, Please 1ndirde how werages were cal culated SNC =>significant No Carpliance mgd=> million gallons per day
Avo period could be month. Otr. a 6-month & if BDL . 112BDL, orzero valuesuse]. TRC => Technical Review Criteria W WTP => wastewater treatment plant
I DSF I UP 0001 Carolina Dairy 2022

Pretreatment Annual Report (PAR)
Industrial Data Summary Form (IDSF)
Use separate forms for each industry/pipe
Enter BDL values as < (value)
AVERAGES CALCULATED USING ALL INDUSTRY AND POTW
VALUES.
Total # of samples=>
* Maximum (mg/1) =>
or Maximum (lb/d) =>
or Average (mg/1) =>
or Average Loading (lb/d) =>
# Violations / # TRC =>
% violations,(chronic SNC is 66%) =>
%TRC violations, (SNC is 33 %) =>
Total # of samples=>
* Maximum (mg/1) =>
or Maximum (lb/d) =>
* or Average (mg/1) =>
* or Average Loading (lb/d) =>
# Violations / # TRC =>
% vi of ati ons, (chronic SNC is — 66%) =>
% TRC violations, (SNC is >= 33 %) =>
Total # of samples=>
Maximum (mg/1) =>
* or Maximum (lb/d) =>
or Average (mg/1) =>
* or Average Loading (lb/d) =>
# Violations / # TRC =>
% vi olati ons,(chroni c SNC is — 66%) =>
%TRC violations, (SNC is— 33 %) =>
Control Authority,
Town Name=> Town of Biscoe
WWTP Name=> Town of Biscoe WWTP
NPDES#=> NCO021504
1st 6 months, dates=> 1/1/2022 6/30/2022
2nd 6 months, dates=> 7/1/2022 12/31/2022
I ndustry
Name Grede Biscoe
IUP# 002
Ripe# 001
Flow, Daily Max, MGD
BOD, mg/L, Daily Max
TSS, mg/L, Daily Max
BOD, mg/L, Monthly Avg.
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
38
51
3
3
3
3
2
3
0.0147
0.0270
40
43
11.8
10.0
40
43
0.0013
0.0035
25
16
7.7
5.2
33
16
0
0
0/0
0/0
0/0
0/0
0/0
0/0
0%
0%
0%
0%
0%
0%
0%
0%
N/A
N/A
0%
0%
0%
0%
0%
0%
Flow, Mo. Avg. MGD
TSS, mg/L, Monthly Avg.
pH, S.U., Daily Max
Temperature, °F, Daily
Max
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
5
5
2
3
9
9
1
5
0.0031
0.0137
11.8
10.0
M ax=8.8
M ax=8.7
85
74
Min=6.6
Min=7.9
0.0014
0.0046
8.8
5.2
85
72
0
0
0/0
0/0
0/0
0/0
0/0
0/0
0%
t)%
0%
0%
0%
0%
0%
0%
N/A
N/A
0%
1 0%
N/A
N/A
0%
0%
Cadmium, mg/L, Daily
Max
Chromium, mg/L, Daily
Max
Copper, mg/L,Daily Max
Cyanide, mg/L, Daily Max
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
3
3
3
3
3
3
3
3
0.0001
0.0001
0.0016
0.0023
0.026
0.023
0.011
0.005
0.000016
0.00009
0.001
0.0018
0.019
0.018
0.006
0.004
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%
BDL => Below Detection Limit
mq/1 => milligrams per liter
* POTW must enter at least one of these I UP => Industrial User Permit
Ib/d => pounds per day
fourrows, Please indicate how averages were calculated SNC=> Significant Non -Compliance
mqd=> million gallons per day
Avg period could be month, Qtr, or 6-month & if BDL , 1/2BDL, or zero values used. TRC => Technical Review Criteria
WWTP => wastewater treatment plant
No flow in April or July
Half DL used exoept for STM P only parameters < DL entered for STM P only parameters
I DSF I UP 0002 AAM Castings 2022

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 (mg/1) =>
or Maximum (lb/d) _>
or Average (mg/1) =>
or Average Loading (lb/d) =>
# Violations / # TRC =>
% violations,(chronic SNC is 66%) =>
%TRC violations, (SNC is 33 %) =>
Total #of samples=>
Maximum (mg/1) =>
or Maximum (I b/d) _>
or Aver age(mg
/1)=>
or Average Loading (lb/d) =>
# Violations / # TRC =>
% violations, (chronic SNC is — 66%) =>
% TRC violations, (SNC is >= 33 %) =>
Total # of samples=>
Maximum (mg/1) =>
or Maximum (lb/d) _>
or Average (mg/1)=>
or Average Loading (lb/d) =>
# Violations / # TRC =>
% violations,(chronic SNC is 66%) =>
%TRC violations, (SNC is 33 %) =>
Industry Name GredeBisooe
IUP# 002
Pipe # 001
Lead, nri Daily Max
Nickel, mg/L, Daily Max
9Iver, nri Daily Max
Zinc, mg/L, Daily Max
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
3
3
3
3
3
3
3
3
0.0005
0.0005
0.003
0.002
0.00025
0.00025
0.047
0.132
0.0004
0.0004
0.0025
0.0013
0.00023
0.00022
0.045
0.075
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%
TTO, mg/L, Dally Max
Oil and Grease, mg/L,
Daily Max
Oil and Grease, mg/L,
Monthly Avg
Ammonia, mg/L, Once
Annually for STMPOnly
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
1st 6 months
2nd 6 months
certification
certification
3
3
2
3
1
2.5
2.5
2.5
2.5
2.6
POTW
TTO <2.13
2.5
2.5
2.5
3
2.6
0/0
0/0
0/0
0/0
0/0
0/0
NA
0%
0%
0%
0%
0%
0%
NA
0%
0%
0%
0%
0%
0%
NA
Arsenic, mg/L, OnceAnnually
for STM P Only
Mercury, mg/L, Once
Annually for STM P Only
Molybdenum, mg/L, Once
Annually for STM P Only
Selenium, mg/L, Once
Annually for STM P Only
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
<0.002
<0.0002
0.003
<0.001
<0.002
<0.0002
0.003
<0.001
NA
NA
NA
NA
IN
NA
NA
NA
NA
NA
NA
NA
BDL => Below Detection Limit mq/I => milligrams per liter
* POT W must enter at least one of these IUP => Industrial User Permit Ib/d => pounds per day
fourrows, Please indicate how averages were calculated SNC=> Significant Non -Compliance mqd=> million gallons per day
Avg period could be month, Qtr, or 6-month & if BDL , 1/2BDL, or zero values used. TRC => Technical Review Criteria WWTP=> wastewater treatment plant
Half DL used accept for STM P only parameters. < DL entered for STM P only parameters
I DSF I UP 0002 AAM Castings 2022

Allocation Table

POTW=
NPDES=
IUP
Count
1
2
3
4
5
6
7
8
9
10
Workbook Name: Biscoe HWAATDesign Approved August 2019 Updated AT August 2021, Worksheet Name: AT
Allocation Table
Headworks last approved: 08/20/19
Allocation Table updated: 08/15/21
Permits last modified: 08/15/21
Biscoe WWTP
NCO021504
Pipe
number
Spreadsheet Instructions:
1) 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.
FLOW BOD
Type Renewal Modification Date Permit Limits Permit Limits
of Effective Effective Permit Cone. Load
Industry Date Date Expires MGDgal/day mg/1 lbs/da
TSS
Permit Limits
Cone. Load
mg/1 lbs/da
Industry
INDUSTRY NAMES Permit
(please list alphabeticly) number
Carolina Dairy
001
0001
Yogurt
08/15/21
08/15/26
0.1500
150,000
500.00
625.50
400.00
500.40
AAM, Bisoce LLC
002
0001
etal Finis
08/15/21
08/15/26
0.0500
50,000
300.00
125.10
300.00
125.10
Column Totals
1 0.20001
200,000
751
626
Basis=>
MAHL from HWA (lbs/day) _> NPDES Permitted Flow—
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) =>
NPDES
Design
Design
0.6000
1101
1101
0.2122
239
345
0.3878
862
756
0.2000
751
626
0.1878
111
130
48.4 %
12.9 °/u
17.2
31.3 %
10.1 %
11.8
0.0300
55
55
Biscoe AT

POTW=
NPDES#=
IUP
Count
1
2
3
4
5
6
7
8
9
10
Workbook Name: Biscoe HWAATDesign Approved August 2019 Updated AT August 2021, Worksheet Name: AT
Allnnntinn Tahla
Headworks last approved:
Allocation Table updated:
Permits last modified:
08/20/19
Pipe
number
08/15/21
08/15/21
Biscoe WWTP
NCO021504
Industry
INDUSTRY NAMES Permit
(please list alphabeticly) number
Ammonia
Permit Limits
Arsenic
Permit Limits
Cadmium
Permit Limits
Chromium
Permit Limits
Copper
Permit Limits
Cone. Load
mg/1 lbs/da
Cone. Load
m /l lbs/da
Cone. Load
mg/1 lbs/da
Cone. Load
m /l lbs/da
Cone. Load
mg/1 lbs/da
Carolina Dairy
001
0001
AAM, Bisoce LLC
002
0001
0.0050
0.0021
0.1000
0.0417
0.0550
0.0229
Column Totals =>
0
1 0-00001
0.0021
0.0417
0.0229
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 Obs/dav) =>
Design
Stream Std
Stream Std
Stream Std
Stream Std
125.10
0.0429
0.0043
0.1443
0.1259
44.24
0.0088
0.0018
0.0885
0.1002
80.86
0.0341
0.0025
0.0558
0.0258
0.00
0.0000
0.0021
0.0417
0.0229
80.86
0.0341
0.0004
0.0141
0.0028
1N62
100.0 %
79.4 %
0.0021
0.0002
0.0072
0.0063
Biscoe AT

POTW=
NPDES#=
IUP
Count
1
2
3
4
5
6
7
8
9
10
Workbook Name: Biscoe HWAATDesign Approved August 2019 Updated AT August 2021, Worksheet Name: AT
Allnnntinn Tahla
Headworks last approved:
Allocation Table updated:
Permits last modified:
08/20/19
Pipe
number
08/15/21
08/15/21
Biscoe WWTP
NCO021504
Industry
INDUSTRY NAMES Permit
(please list alphabeticly) number
Cyanide
I ermit Limits
Lead
Permit Limits
Mercury
Permit Limits
Molybdenum
Permit Limits
Nickel
Permit Limits
Selenium
Permit Limits
Cone. Load
mg/1 lbs/da
Cone. Load
m /l lbs/day
Cone. Load
mg/1 lbs/da
Cone. Load
m /l lbs/da
Cone. Load
mg/1 lbs/da
Cone. Load
MR/1 lbs/da
Carolina Dairy
001
0001
AAM, Bisoce LLC
002
0001
0.0500
0.0209
0.0200
0.0083
0.1000
0.0417
Column Totals =>
1 0.0209
1 0.0083
0.000000
0.00001
1 0.0417
10.0000
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 Obs/dav) =>
Stream Std
Stream Std
Stream Std
Stream Std
Stream Std
Stream Std
0.0381
0.0182
0.000071
0.5639
0.1506
0.0236
0.0058
0.0088
0.000074
0.0044
0.0372
0.0124
0.0322
0.0093
-0.000003
0.5595
0.1135
0.0112
0.0209
0.0083
0.000000
0.0000
0.0417
0.0000
0.0114
0.0010
-0.000003
0.5595
0.0718
0.0112
35.3 %
10.5 %
100.0 %
100.0 %
63.2 %
100.0
29.9 %
5.4 %
0.0019
0.0009
0.000004
0.0282
0.0075
0.0012
Biscoe AT

POTW=
NPDES#=
IUP
Count
1
2
3
4
5
6
7
8
9
10
Workbook Name: Biscoe HWAATDesign Approved August 2019 Updated AT August 2021, Worksheet Name: AT
Allnnntinn Tahla
Headworks last approved:
Allocation Table updated:
Permits last modified:
08/20/19
Pipe
number1
08/15/21
08/15/21
Biscoe WWTP
NCO021504
Industry
INDUSTRY NAMES Permit
(please list alphabeticly) number
Silver
FPen-nit Limits
Zinc
Permit Limits
Total Nitrogen
Permit Limits
Total Phos.
Permit Limits
. Load
lbs/da
Conc. Load
m /l lbs/da
Conc. Load
mg/1 lbs/da
Conc. Load
m /l lbs/da
Carolina Dairy
001
0001
AAM, Bisoce LLC
002
0001
0.0005
0.0002
0.7500
0.3128
Column Totals =>
0.0002
0.3128
0.00
0.00
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 Obs/dav) =>
Biscoe AT
Stream Std
Stream Std
0.0006
0.5658
0.0042
0.1460
-0.0037
0.4198
0.0002
0.3128
-0.0039
0.1071
105.7 %
25.5 %
686.3 %
18.9 %
0.0000
0.0283
1 0.001

EL & MR

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 =>
Biscoe
IU name =>
NC0021504
IUP # _>
12/16/2021
Pipe # _>
08/15/2026
40 CFR # _>
THE LIMITS ON THIS PAGE ARE, (Check one below):
LIMITS for ENTIRE permit period =>
INTERIM Limits for period # 1 =>
INTERIM Limits for period # 2 =>
FINAL Limits Page => X
Carolina Dairy, LLC
001
001
NA
if not applicable put N/A
Concentration Limits
Mass Limits
Monitoring Frequency
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
0.15
0.1
MGD
Daily
Every Sample
Reading-
2
BOD
500
m /L
Monthly
Semi -Annually
C
2.0 m /L
3
TSS
400
m /L
Monthly
Semi -Annually
C
2.5 m /L
4
Temperature
110
100
OF
Daily*
6 Annual,
random
Grab or In
situ
1017
5
pH
11
Daily Min
= 6
Std. Units
Std. Units
Monthly
Semi -Annually
Grab or In
situ
0.1 S.U.
OTHER PARAMETERS; Please List Alphabeticall
6
FOG
30
m /l
Monthly
Semi -Annually
G
5 mg/L
7
8
9
10
11
12
13
14
15
*Daily temperature monitoring by industry is not required to be performed by an NC certified laboratory. Daily industrial temperatures are operational, and shall be reported
as such.

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 =>
Biscoe
IU name =>
NC0021504
IUP # _>
8/15/2021
Pipe # _>
8/15/2026
40 CFR # _>
THE LIMITS ON THIS PAGE ARE, (Check one below):
LIMITS for ENTIRE permit period =>
INTERIM Limits for period # 1 =>
INTERIM Limits for period # 2 =>
FINAL Limits Page => X
Grede II, Biscoe
002
O1
433
if not applicable put N/A
Concentration Limits
Mass Limits
Monitoring Frequency
Sample
Collecti
Required
on
Laboratory
Monthly
Monthly
Method
Detection
Daily Max
Average
Units
Daily Max
Average
Units
By Industry
B POTW
C or G
Level
1
Flow
0.050
0.033
MGD
Continuous
-
-
2
BOD
300
250
mg/L
Quarterly
Semi -Annually
C
2.0 mg/L
3
TSS
300
250
mg/L
Quarterly
Semi -Annually
C
2.5 mg/L
4
Temperature
Monitor
& report
Deg. C
Daily*
6 Annual,
Grab or
random
In situ
1°C
5
pH
9
Daily Min
Std. Units
Std. Units
Quarterly
Semi -Annually
Grab or
0.1 S.U.
= 6
In situ
5
Oil & Grease
50
25
mg/L
Std. Units
Quarterly
Semi -Annually
Grab or
5 mg/L
In situ
OTHER PARAMETERS; Please List Al habeticall
6
Cadmium
0.005
mg/L
Quarterly
1/6 months
C
0.001 mg/L
7
Chromium
0.1
mg/L
Quarterly
1/12 months
C
0.01 mg/L
8
Copper
0.055
mg/L
Quarterly
1/6 months
C
0.002 mg/L
9
Cyanide
0.050
mg/L
Quarterly
1/6 months
C
0.005 mg/L
10
Lead
0.020
mg/L
Quarterly
1/6 months
C
0.002 mg/L
12
Nickel
0.10
mg/L
Quarterly
1/6 months
C
0.01 mg/L
13
Silver
<0.0005
mg/L
Quarterly
1/12 months
C
0.0005 mg/L
14
Zinc
0.75
mg/L
Quarterly
1/6 months
C
0.01 mg/L
15
TTO**
2.13
Once/6 Months
Once/year **
G
0.01 mg/L
**
*Daily temperature monitoring by industry is not required to be performed by an NC certified laboratory. Daily industrial temperatures are operational and shall be reported
as such.
**See Section III

Appendix A - Carolina
Diary Authorizations to
Construct

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about:blank
TOWN OF BISCOE, NC
INCORPORATED 1901
February 18, 2022
Jq *
'000 NC
Authorization to Construct
Mr. Drew Corey
Regional Environmental Manager
Saputo Cheese USA
3304 Sydney Rd.
Plant City, FL 33566
RE: Authorization to Construct, IUP 001
Dear Mr. Corey,
Pretreatment Program
Per your teleconference January 19, 2022, with our Pretreatment Consultant, Lisa
Osthues, the Town of Biscoe approved construction/ process changes to the
pretreatment process for the Carolina Dairy / Saputo facility located at 116 Industrial
Park Drive, Biscoe, NC. Those approved changes are summarized below:
• Cease the use of the ozone treatment prior to the biological portion of the
pretreatment process, as the ozone was resulting in a loss of bio fauna and
lowering the treatment capacity of the biological portion of the treatment.
• Repurpose the ozone tank for pH adjustment in order to assist with more
consistent pH during and post pre-treatment.
Please note: should the utilization of the new/modified equipment or pretreatment
process contribute to pretreatment minimization, safety issues, or nuisance conditions
within the Town of Biscoe, the Town reserves the right to require the industry to adopt
an alternate strategy for pretreatment.
Tha�k you,
- U
Sammy R. Stewart
Superintendent of Public Works
Town of Biscoe
(910) 428-41 12
110 W MAIN ST. I BISCOE, NORTH CAROLINA 27209 1 TELEPHONE [phone] I FAX [phone]
W W W.TOWNOFBISCOE.COM
I of 1 2/18/2022, 12:23 PM

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TOWN OF BISCOE, NC
INCORPORATED 1901
Authorization to Construct
March 21, 2022
Mr. Drew Corey
Regional Environmental Manager
Saputo Cheese USA
3304 Sydney Rd.
Plant City, FL 33566
RE: Authorization to Construct, IUP 001
Dear Mr. Corey,
Pretreatment Program
Per your email to our Pretreatment Consultant Lisa Osthues, dated March 18, 2022,
due to concerns with the level of pollutant removal over the MBBR at the Biscoe
facility, and following preliminary testing suggesting it is negatively impacting your
ability to remove TSS from the final effluent, you are requesting a 3-month trial of the
pretreatment system without the use of the MBBR. The Town of Biscoe is hereby
granting a trial period of pretreatment, bypassing the MBBR and using the DAF as the
primary removal vehicle at the facility. This trial period goes into effect Tuesday,
March 22, 2022, and ends on June 30, 2022.
Please note, should the bypass of the MBBR contribute to pretreatment minimization,
NPDES violations of the Town's wastewater permit, safety issues, or nuisance
conditions within the Town of Biscoe, the Town reserves the right to require the
industry to adopt an alternate strategy for pretreatment before the trial expiration
date.
Thank you,
1�v.. A A�t�
O
Sammy R. Stewart
Superintendent of Public Works
Town of Biscoe
[phone]
110 W MAIN ST. I BISCOE, NORTH CAROLINA 27209 1 TELEPHONE [phone] FAX [phone]
W WW.TOWNOFBISCOE.COM
1 of 1 3/21/2022, 2:44 PM