NC0026689_Annual Report_20220214

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NC
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TOWN OF DENTON
January 31, 2022
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617 RECEIVED
SUBJECT: PRETREATMENT ANNUAL REPORT FEB 14 2022
TOWN OF DENTON WWTP NC0026689
NCDEQIDWRINPDES
DEAR SIRS/Ma'am,
ENCLOSED IS THE ORIGINAL AND ONE COPY OF THE TOWN OF DENTON 2021 PRETREATMENT ANNUAL
REPORT(PAR) FOR THE PERIOD COVERING JANUARY 1, 2021 THRU DECEMBER 31, 2021.
IF YOU REQUIRE ANY ADDITIONAL INFORMATION OR HAVE QUESTIONS REGARDING THIS REPORT,
PLEASE CONTACT ME AT 336-859-4460 OR [e-mail].
SINCERELY,
TROY B. BRANCH
PRETREATMENT COORDINATOR
201 W. Salisbury Street
P.O. Box 306 Phone: [phone]
Denton, NC 27239 Fax: [phone]
This institution is an equal opportunity provider and employer

Town of Denton (NPDES # NCO026689)
2021 PAR
NARRATIVE
GENERAL INFORMATION:
GENERAL PROGRAM INFORMATION:
■ AT, STMP, SUO, ERP, and IWS are up to date.
■ HWA has been submitted but not yet reviewed.
■ NPDES Permit was renewed and went into effect on October 1, 2021 with expiration
date of Feb 28, 2026
■ All Dates on the Division's Database Program Info Sheet are correct
■ A copy of our Program Information Sheet is enclosed with corrections.
SIU PERMIT INFORMATION:
CENTURY HOSIERY PERMIT (#0001) INFORMATION:
■ Century Hosiery Inc. Permit#0001 was renewed and became effective January 1, 2020.
The Permit was initially received by PERCS on December 20, 2019 and corrections were
received by PERCS on January 3, 2020.
■ No name changes at the SIU
■ No major process changes at the SIU during 2021
■ No SNC violations were noted during 2021

Chapter 9, PAR Guidance
Pretreatment Performance Summary (PPS)
1. Pretreatment Town Name: Denton
2. "Primary" NPDES Number NCO() 26689
or Non Discharge Permit# if applicable=>
3. PAR Begin Date,please enter 01/01/yyyy 3.=> 1/1/2021
4. PAR End Date, please enter 12/31/yyyy 4.=> 12/31/2021
5. Total number of SIUs, includes CIUs 5._>
6. Number of CIUs 6.=> 1
7. Number of SIUs with no IUP, or with an expired IUP 7.=> 0
8. Number of SIUs not inspected by POTW 8.=> 0
9. Number of SIUs not sampled by POTW 9.=> 0
10. Number of SIUs in SNC due to IUP Limit violations 10._> 0
11. Number of SIUs in SNC due to Reporting violations 11.=> 0
12. Number of SIUs in SNC due to violation of a Compliance Schedule,CO,AO or similar 12.=> 0
13. Number of CIUs in SNC 13.=> 0
14. Number of SIUs included in Public Notice 14.=> 0
15 Total number of SIUs on a compliance schedule, CO, AO or similar 15.=> 0
16. Number of NOVs,NNCs or similar assesed to SIUs 16.=> 0
17. Number of Civil Penalties assessed to SIUs 17.=> 0
18. Number of Criminal Penalties assessed to SIUs 18.=> 0
19. Total Amount of Civil Penalties Collected 19._> $ 0
20. Number of IUs from which penalties collected 20.=> 0
Foot Notes: AO Administrative Order IUP Industrial User Pretreatment Permit POTW Publicly Owned Treatment Works
CIU Categorical Industrial User NNC Notice of Non-Compliance SIU 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

Pretreatment Annual Report (PAR) PAR covers this calendar year=> 2021
Significant Non-Compliance Report (SNCR) Control Authority=Program=Town Name => Town of Denton
WWTP = Wastewater Treatment Plant, use separate form for each WWTP. WWTP Name => Denton WWTP
SIU= Significant Industrial User NPDES # => NC0026689
SNC = Significant Non-Compliance
A SNCR Form must be submitted with every PAR, please write "None " if you had No SIUs in SNC during calendar year
SNC ? (Yes/No )
IUP Pipe Industry Name Parameter for each 6-month period.
# # or "Reporting" Jan. -June July-Dec.
1 1 Century Hosiery, Inc. NONE No No
Attach a copy of the Division's "SIUs in SNC Historical Report"for your POTW's Sills behind this page .
Is the database correct ? Notify the Division of any errors ! Database indicates SNC history for previous years.
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.
Form name: PAR,SNCR,2001
. Date Revised: 1/4/2001

Pretreatment Annual Report (PAR) Control Authority, Industry
Industrial Data Summary Form (IDSF) Town Name=> Denton Name Century Hosiery, Inc.
Use separate forms for each industry/pipe WWTP Name=> Denton WWTP IUP# 1
Enter BDL values as<(value) NPDES#=> NC0026689 Pipe# 1
1st 6 months,dates=> 1/1/2021 to 6/30/2021
2nd 6 months,dates=> 7/1/2021 to 12/31/2021
Flow, mgd BOD TSS Ammonia
1 st b months lnd 6 months 1st b months lnd b months 1st b months lnd 6 months 1st b months lnd b months
Total#of samples=> 1 1 1 1 1 1
* Maximum (mg/1)_> 0.0276 0.042 40 94 30 12
* or Maximum (lb/d)=>
* or Average(mg/1)=>
* or Average Loading(lb/d)=>
%violations,(chronic SNC is>=66%)_>
%TRC violations, (SNC is>=33 %)_>
Arsenic cadmium - chromium CUD l
1st 6 months 2nd 6 months 1st 6 months 2nd 6 months 1st 6 months 2nd 6 months 1st 6 months 2nd 6 months
Total#of samples=> 1 1 1 1
* Maximum (mg/1)=> <0.002 <0.002 <0.005 <0.005
* or Maximum (lb/d)_>
* or Average(mg/I)_>
* or Average Loading(lb/d)_>
%violations,(chronic SNC is>=66%)_>
%TRC violations, (SNC is>=33 %)=>
copper cyanide -Lead Mercury
I st 6 months 2nd 6 months 1st 6 months 2nd 6 months 1st 6 months 2nd 6 months 1st 6 months 12nd 6 months
Total#of samples=> 1 1 1
* Maximum (mg/I)_> 0.006 0 <0.010
* or Maximum (lb/d)_>
* or Average(mg/1)=>
* or Average Loading(lb/d)=>
%violations,(chronic SNC is>=66%)_>
%TRC violations, (SNC is>=33%)_>
BDL=>Below Detection Limit mg/1=>milligrams per liter
* POTW must enter at least one of these IUP=>Industrial User Permit lb/d=>pounds per day
four rows, Please indicate how averages were calculated SNC=>Significant Non-Compliance mgd=>million gallons per day
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
Chapter: PAR Guidance File name: P. Sdfica sideaiiidecl afttg8;x*ct9BxIB,pages 12, 13, 14 Blank IDSF Form,Copy and use in your PAR Number each set for each IUP pipe-Page of

Pretreatment Annual Report (PAR) Industry Name Century Hosiery, Inc
Industrial Data Summary Form (IDSF) IUP# 1
Use separate forms for each industry/pipe Pipe# 1
1 stC ontns lnd 6 months 1st months '2nd b months 1 st bemonths �Lnd b months ' t 1 months 2nd 6 months j
Total#of samples=> 1 1 1 1
* Maximum (mg/1)_> <0.010 <0.005 <0.010 0.036
* or Maximum (lb/d)=>
* or Average(mg/1)_>
* or Average Loading(1b/d)_>
%violations, (chronic SNC is>=66%)_>
%TRC violations, (SNC is>=33%)=>
pH uu azurease
1st 6 months 2nd 6 months 1st 6 months -2nd 6 months '1st 6 months 2nd 6 months 1st 6 months 2nd 6 months
Total#of samples=> 1 1 1 1
* Maximum=> 7.22 7.27 <5 <5
* or Minimum=>
*
*
%violations,(chronic SNC is>=66%)_>
%TRC violations, (SNC is>=33 %)_> N/A
1st 6 months -2nd 6 months 1st 6 months 2nd 6 months 1st 6 months 2nd 6 months 1st 6 months 2nd 6 months
Total#of samples=>
* Maximum (mg/I)_>
* or Maximum (lb/d)_>
* or Average(mg/1)=>
* or Average Loading(lb/d)=>
%violations, (chronic SNC is>=66%)_>
%TRC violations, (SNC is>=33%)_>
BDL=>Below Detection Limit mg/1=>milligrams per liter
* POTW must enter at least one of these IUP=>Industrial User Permit lb/d=>pounds per day
four rows, Please indicate how averages were calculated SNC=>Significant Non-Compliance mgd=>million gallons per day
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
Chapter: PAR Guidance File name: P?Ibtl 0Sttak deKigiaied ta¢tigtiktslect&B)1B,pages 12, 13, 14 Blank IDSF Form,Copy and use in your PAR Number each set for each IUP pipe-Page of

Workbook Name : 2021.Denton.HWA.AT.xls, Worksheet Name: AT Printed:1/24/2022,3:10 PM
Allocation Table Spreadsheet Instructions: Page 1 of 5
Headworks last approved: 11/10/16 1)Applicable Values should be entered in the Heavy Bordered cells, Rest of worksheet is protected,password Is
„2a
Allocation Table updated: 11/10/16 2)Formulas are discussed In the Comprehensive Guidance,Chapter 6,Section C.
Permits last modified: 01/01/20 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.
Pores=>Denton
NPOESfl=> NC0026689
FLOW BOD TSS
Industry Type Renewal Modification Date Permit Limits Permit Limits Permit Limits
IUP INDUSTRY NAMES Permit Pipe of Effective Effective Permit Conc. Load Conc. Load
Count (please listalphabeticly) number number Industry Date Date Expires MGD gal/day m I 1bs/da m 1 lbs/da
1 Century Hosiery 0001 001 textile 01/01/20 12/31/25 0.0800 80,000 750.00 500.40
2 w
3
4
5
6 w
7
8 _
l
9
10 �—
Column Totals=> 0.0800 80,000 500 ( 0
Basis=> NPDES Design Design
MAHL from HWA(lbs/day)=> NPDES Permitted Flow=> 0.8000 1434 1788
Uncontrollable Loading(lbs/day)_> 0.4910 848 1089
Total Allowable for Industry(MAIL)(lbs/day)_> 0.3090 587 699
Total Permitted to Industry(lbs/day)_> 0.0800 500 0
MAIL left(lbs/day)_> 0.2290 86 699
Percent Allow. Ind.(MAIL)still available(%)_> 74.1% 14.7% 100.0%
Percent MAHL still available(%)_> 28.6% 6.0% 39.1%
5 Percent MAHL(lbs/day)_> 0.0400 72 89
H W A.AT
Revised:November 2005

Workbook Name : 2021.Denton.HWA.AT.xls, Worksheet Name: AT Printed:1/24/2022,3:10 PM
Allocation Table Page 2 of 5
Headworks last approved: 11/10/16
Allocation Table updated: 11/10/16
Permits last modified: 01/01/20
PoTW=> Denton
NPDESt(=> NC0026689
Ammonia Arsenic Cadmium Chromium Copper Cyanide
Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits
IUP INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load
Count (please list elphebaicty) number number mg/I lbs/day mg/I lbs/day mg/1 lbs/day mg/I lbs/day 1 mg/1 lbs/day mg/I lbs/day
1 Century Hosiery 0001 001 ( 0.0070' 0.004711 0.2000 0.1334P 0.2000 0.1334
2
3 ��
4 r
5
1
6 _
8
9 ,_
10
Column Totals=> 1 01 0.0000 0.0047 0.13341 1 0.13341 0.0000
Sludge
Basis=> Design Ceiling Stream Std Stream Std Stream Std Stream Std
MAHL from HWA(lbs/day)_> 266.88 0.0458 0.0220 0.2625 0.7977 0.0693
Uncontrollable Loading(lbs/day)=> 102.37 0.0123 0.0041 0.0131 0.1892 0.1679
Total Allowable for Industry(MAIL)(lbs/day)=> 164.51 0.0335 0.0179 0.2494 0.6085 -0.0986
Total Permitted to Industry(lbs/day) 0.00 0.0000 0.0047 0.1334 0.1334 0.0000
MAIL left(lbs/day)=> 164.51 0.0335 0.0132 0.1159 0.4750 -0.0986
Percent Allow. Ind.(MAIL)still available(%)=> 100.0% 100.0% 73.9% 46.5% 78.1% 100.0%
Percent MAHL still available(%)=> 61.6% 73.2% 60.2% 44.2% 59.6% -142.4%
5 Percent MAHL(lbs/day)_> 0.0023 0.0011 0.0131 0.0399 0.0035
HWA.AT
Revised:November 2005

Workbook Name : 2021.Denton.HWA.AT.xls, Worksheet Name: AT Printed:1/24/2022,3:10 PM
Allocation Table Page 3 of 5
Headworks last approved: 11/10/16
Allocation Table updated: 11/10/16
Permits last modified: 01/01/20
POTW=> Denton
NPDES4 > NC0026689
Lead Mercury Molybdenum Nickel Selenium Silver
Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits
IUP 1 INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load
Count (please ueaIpbebalay) number number mg/I lbs/day mg/I lbs/day mg/1 lbs/day mg/1 lbs/day mg/I lbs/day nlg/I lbs/day
1 Century Hosiery 0001 001 0.0200 0.0133
2
3
4
5 "
6 •--
7
N I
8I
9
10
Column Totals=> , 0.01331 0.000000 0.0000 0.00001 I 0.00001 I 0.0000
Sludge
Basis=> Stream Std Stream Std Ceiling Stream Std Stream Std Stream Std
MAHL from HWA(lbs/day)=> 0.1520 0.001652 0.0511 0.1851 0.0430 0.0010
Uncontrollable Loading(lbs/day)=> 0.0205 0.012285 0.0860 0.0205 0.0102
Total Allowable for Industry(MAIL)(lbs/day)_> 0.1315 -0.010633 ####### 0.0991 0.0225 -0.0092
Total Permitted to Industry(lbs/day)_> 0.0133 0.000000 0.0000 0.0000 0.0000 0.0000
MAIL left(lbs/day)=> 0.1182 -0.010633 ####### 0.0991 0.0225 -0.0092
Percent Allow.Ind.(MAIL)still available(%)=> 89.9% 100.0% ####### 100.0% 100.0% 100.0%
Percent MAHL still available(%)=> 77.7% -643.7% ####### 53.6% 52.3% -893.1 %
5 Percent MAHL(lbs/day)_> 0.0076 0.000083 0.0026 0.0093 0.0021 0.0001
HWA.AT
Revised:November 2005

Workbook Name : 2021.Denton.HWA.AT.xis, Worksheet Name: AT Printed:1/24/2022,3:10 PM
Allocation Table Page 4 of 5
•
Headworks last approved: 11/10/16
Allocation Table updated: 11/10/16
Permits last modified: 01/01/20
POTW=> Denton
NPDES&> NC0026689
Zinc Total Nitrogen Total Phos. hlorobromometh d e
Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits
IUP INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load
Count (please listalphabeticly) number number mg/I lbs/day mg/I lbs/day mg/I lbs/day J mg/1 lbs/day mg/I lbs/day mg/I lbs/day
1 Century Hosiery 0001 001 0.2500 0.1668
1 .1
2 ��
3 -, - .
4
IMMINIII
6
7 � r�
8 1....
9
10 p
Column Totals=> 1 , 0.16681 0.001 0.001 1 0.00001 , 0.00001 I 0.0000
Sludge
Basis=> Ceiling
MAHL from HWA(lbs/day)_> 2.0121
Uncontrollable Loading(lbs/day)=> 0.7608
Total Allowable for Industry(MAIL)(lbs/day)_> 1.2513
Total Permitted to Industry(lbs/day)_> 0.1668 0.00 0.00 0.0000 0.0000 0.0000
MAIL left(lbs/day)=> 1.0845
Percent Allow. Ind.(MAIL)still available(%)=> 86.7% ####### ####### ####### ####### #######
Percent MAHL still available(%)_> 53.9% ####### ####### ####### ####### #######
5 Percent MAHL(lbs/day)=> 0.1006
H W A.AT
Revised:November 2005

Workbook Name : 2021.Denton.HWA.AT.xls, Worksheet Name: AT Printed:1/24/2022,3:10 PM
Allocation Table Page 5 of 5
Headworks last approved: 11/10/16
Allocation Table updated: 11/10/16
Permits last modified: 01/01/20
POTW=> Denton
NPDES#=' NC0026689
f g h I
Industry Permit Limits Permit Limits Permit Limits Permit Limits
IUP INDUSTRY NAMES Permit I Pipe Conc. Load Conc. Load Conc. Load Conc. Load
Count (please list alphebeticly) number number mg/I lbs/day mg/I lbs/day mg/1 lbs/day mg/1 lbs/day
1 Century Hosiery 0001 001
2 4
3
4
5
6
7 -~
8
9
10
Column Totals=> 0.00001 0.00001 I 0.00001 0.0000
Basis=>
MAHL from HWA(lbs/day)_>
Uncontrollable Loading(lbs/day)=>
Total Allowable for Industry(MAIL)(lbs/day)_>
Total Permitted to Industry(lbs/day) 0.0000 0.0000 0.0000 0.0000
MAIL left(lbs/day)_>
Percent Allow. Ind.(MAIL)still available(%)=> ####### ####### ####### #######
Percent MAHL still available(%)=> ####### ####### ####### #######
5 Percent MAHL(lbs/day)_>
HWA.AT
Revised:November 2005

Pretreatment Program Info Database printed on: 4/29/2021
for Program Name Denton i _. `
Stream information IWC%at 7Q10 100.00
WWTP Name Town of Denton
Program Approval Date 08/05/1985 7Q10 Flow cfs/mgd 0 / 0.00
Pretreatment Status 1Q10 Flow cfs/mgd 0.00 / 0.00
Modified
Stream Classification WS-IV
Region WSRO Basin Number YADO8
County Davidson Receiving Stream Name LICK CREEK
•
NPDES Number NC0026689
NPDES Effective Date Last PAR Rec 01/12/2021 PAR Due Date 03/01/2022 mercury
08/01/2016 1631
Current Fiscal
NPDES Expire Date 02/28/2021 12/17/2020 required
Year PCI Done
POTW is Primary WTP TRUE Last Audit on 10/16/2018 Audit Year Next22/23 yes
W
Design Flow mgd 0.8000 %Design mgd is SIU permitted 10.00 Permitted SIU flow(mgd)[Pt_SIU) .08
WWTP SIU's 1 Program Sills 11 f
WWTP CIU's 0 Program CIUs 0 HWA - LTMP ----1;—'4441) SUO a' ERP �.�>'%
date Inactive Date Next Due 09/01/2021 03/31/2025 L
Date Received by DWR 09/07/2016 08/09/2017 05/11/2020 L01/04/2013 12/31/2019
Date Approved 11/10/2016 110/24/2017 1 08/05/2020 01/18/2013 03/17/2020
Adopt Date Required
Date Adopted L12/17/2012
i N
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.Troy Branch 'Prim 11(336)859-4460 1(336)859-3381 II 5/10/2006 I ' 1/27/2005
[e-mail] (Water and Wastewater PO Box 306 27239
jPretreatment Related NOVs from DWQ ) DWR Central Office Contact Monti Hassan
DWR Regional Contact Jim Gonsiewski
i