NC0020648_Annual Report_20240222

- 1
RECEIVED
FEB 2 2 2024
NCDEQIDWRINPDES
PRETREATMENT ANNUAL REPORT
City of Washington
January 2023 to December 2023

Mayor . Washington City Council
Donald R.Sadler C 1 of Richard Brooks
Lou Hodges
City Manager \XIa Antwan Horton
Jonathan R sell O� William Pitt
NORTH CAROLINA Anthony Tyre
February 14, 2024
NC DIVISION OF WATER RESOURCES
NPDES MUNICIPAL UNIT/ PRETREATMENT
1617 MAIL SERVICE CENTER
RALEIGH,NC 27699-1617
Subject: 2023 Pretreatment Annual Report
Dear Pretreatment Coordinator,
I have attached a copy of the City of Washington's Pretreatment Annual Report. I trust that you
will find everything in order. If you should have any questions or concerns regarding this report
or the City of Washington's Pretreatment Program, I can be reached by telephone at
[phone] or by email at [e-mail].
Sincerely,
7)4}2- j
Palki Desai
Treatment Plant Operation Supervisor
City of Washington
102 East Second Street, Washington, North Carolina 27889
[phone]
www.washingtonnc.gov

City of Washington
Pretreatment Annual Report
Report Date: February 14, 2024
Period covered by this report: January 2023 thru December 2023
Name of the Wastewater Treatment Plant NPDES Permit Number
City of Washington Municipal Wastewater NC 0020648
Treatment Plant
Person to contact concerning this information contained in this report:
Name: Hope Woolard
Title: Director of Public Works
Mailing Address: City of Washington
Water Resources Division
P.O. Box 1988
Washington, NC 27889-1988
Telephone: [phone] or(252) 975-9300
To the best of my knowledge, the following information submitted in this report is
accurate and complete. I am aware that there are significant penalties for intentionally
submitting false information.
Hope Woolard
D
Director of Pub i W rks
Date: 2. (g I W 2 44-

Pretreatment Program Info Database printed on: 2/13/2024
for Program Name Washington
Stream Information Iwc %at 7Q10 11.25
WWTP Name City Washington
Washin ton
Program Approval Date 08/05/1983 7Q10 Flow cfs/mgd 44.58 / 28.80
1Q10 Flow cfs/mgd 36.60 / 23.65
Pretreatment Status Full
Stream Classification C-NSW
Region WARO Basin Number TAR07
County Beaufort Receiving Stream Name Tar River
NPDES Number NC0020648
NPDES Effective Date Last PAR Rec 03/01/2023 PAR Due Date 03/01/2024 mercury
07/01/2021 1631
NPDES Expire Date Current Fiscal 03/23/2021 required
p 11/30/2025 Year PCI Done
POTW is Primary WWTP TRUE Last Audit on 05/07/2019 Audit Year Nex123/24 yes
Design Flow mgd 3.6500 % Design mgd is SIU permitted 1.23 Permitted SIU flow(mgd)[Pt_SIU) .045
WWTP SIU's 1 Program SlUs 1
WWTP CIU's 0 , Program ClUs 0 HWA LTMP IWS SUO ERP
date Inactive Date Next Due L
Date Received by DWR 04/29/2021 04/11/2018 J 09/28/2023 02/21/2013 02/05/2020
Date Approved 1 —04/11/2018 1 105/23/2013 02/13/2020
Adopt Date Required
Date Adopted 10/28/2013
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
Ms. Hope Woolard I 11252-975-9332 I 1252-975-0249 II 3/1/2011 16/22/2011 I 2/5/2013
[e-mail] Public Works Director PO Box 1988 1127889
Ms. Palki Desai (Prim 11252-721-8303 j ' II 4/11/2019 15/24/2016 11/24/2019 I
[e-mail] Pretreatment Plant Supervisor
Mr. Lonnie Woolard I 11252-975-9310 j
[e-mail] Water Resources Superintendent
SPretreatment Related NOVs from DWQ DWR Central Office Contact Pretreatment Staff
DWR Regional Contact Robbie Bullock

PAR Narrative City of Washington February 2024
General Program Information
All information on the Pretreatment Program Database Sheet is correct
Data Summary Forms
Calculations were performed using 'A BDL.
Industries
AAF Flanders (IUP #0003 Filtration Systems)
AAF Flanders did not have any violations during the year 2023.
The Head Works Analysis for City of Washington was approved in 2016.
The Allocation table is based on the HWA design from 2016.
The next HWA was submitted on 4/29/2021 to the Pretreatment Division
and has not been approved.
The City of Washington's Water Resources Division is enforcing the
City's Grease Trap Policy throughregular monitoring, inspections, and
education.
The City of Washington provides solid waste services, which include
garbage,tree trunks and branches, yard waste, bulky trash items and
recycling of newspapers, plastics, cardboard,paper, aluminum, steel cans,
and glass.
The City of Washington is enforcing the Dental Amalgam Rule by
attaining One-time Compliance Report.
Industrial Waste Survey was submitted on 9/28/2023 to the Pretreatment
Division.

Chapter 9, PAR Guidance
Pretreatment Performance Summary (PPS)
I. Pretreatment Town Name: City of Washington
2. "Primary" NPDES Number NCO() 20648 This Column
for office
or Non_Discharge Permit# if applicable => use only
EPA
WENDB
3. PAR begin Date, please enter 01/01/yy or 07/01/yy 3.=> 01/ 01/ 2023 PSSD
4. PAR end Date, please enter 06/30/yy or 12/31/yy 4. => 12/ 31/ 2023 PSED
5. Total number of SIUs, includes CIUs 5. => 1 slus
6. Number of CIUs 6. => 0 cius
7. Enter the Higher Number, either (7a) or(7b) here => 0 NOIN
7a. Number of SIUs not sampled by POTW 7a. _> 0
7b. Number of SIUs not inspected by POTW 7b. => 0
8. Number of SIUs with no IUP, or with an expired IUP 8.=> 0 NOCM
9. Total Number of SIUs in SNC due to either IU Reporting violations or
IUP Limit violations. To avoid double counting some SIUs
Enter ( 9a+ 9b ) - 9c here => 0 PSNC
Enter the Number of SIUs in SNC for : 0
9a. IU Reporting violations 9a._> 0 MSNC
9b. IUP Limit violations 9b.=> 0 SNPS
9c. Both IU Reporting & Limit violations 9c._> 0
10. Number of SIUs in SNC due to IU Reporting violations
that were not sampled or inspected by POTW 10.=> 0 sNIN
1 1. Number of SIUs in SNC due to violation of 11._> 0 SSNC
Compliance Schedule due dates
12. Number NOVs, NNCs, AOs, or similar assesed to SIUs 12.=> 0 FENF
13. Number Civil or Criminal Penalties assessed to SIUs 13.=> 0 JUDI
14. Number of SIUs included in public notice 14.=> 0 sVPU
15. Number of SIUs from which penalties collected 15.=> 0 IUPN
16. Total Amount of Civil Penalties Collected 16. => $ 0
17. Total Number of SIUs on a compliance schedule 17.=> 0 socs
Foot Notes: AO Administrative Order NOV Notice of Violation
CIU Categorical Industrial User PAR Pretreatment Annual Report
CO Consent Order POTW Public Operated Treatment Works
IUP Industrial User Pretreatment Permit SIU Significant Industrial User
NNC Notice of Non-Compliance SNC Significant Non-Compliance,formerly RNC
Chapter name: PAR Guidance File name: PAR_PPSDchnliaieinivd.11112iActglildpti959t Section B, Page 5 Blank PPS Form,Copy and use in your PAR

Pretreatment Annual Report (PAR) PAR covers this calendar year=> 2023
Significant Non-Compliance Report (SNCR) Control Authority=Program=Town Name => City of Washington
WWTP = Wastewater Treatment Plant, use separate form for each WWTP. WWTP Name =>'Washington Municipal WWTP
SIU = Significant Industrial User NPDES # => NC 0020648
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.
None
Attach a copy of the Division's "SIUs in SNC Historical Report" for your POTW's SIUs behind this page .
Is the database correct ? Notify the Division of any errors ! Database indicates SNC history for previous years.
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=> City of Washington Name AAF Flanders
Use separate forms for each industry/pipe WWTP Name=>.‘Washington WWTP IUP# 003
Enter BDL values as < (value) NPDES#=> NC0020648 Pipe# 01
1st 6 months,dates=> January 1,2023 to June 30,2023
2nd 6 months,dates=> July 1,2023 to December 31,2023
r low, ingot DUI/ -I N ammonia
I st 6 months 2nd 6 months 1st b months 2nd 6 months ►st 6 months 2nd b months 1st b months 2nd 6 months
Total#of samples=> 7 7 7 7 7 7
* Maximum (mg/1)_> *not required *not required
* or Maximum (1b/d)_>
* or Average(mg/1)_> 16.81 18.71 7.60 3.01
* or Average Loading(mgd)_> 0.0195 0.0179
%violations,(chronic SNC is>=66%)=> 0 0 N/A N/A N/A N/A
%TRC violations,(SNC is>=33%)_> 0 0 N/A N/A N/A N/A
Arsenic Cadmium Chromium- CUD
l st 6 months 2nd 6 months I st 6 months 2nd 6 months 1st 6 months 2nd 6 months 1st 6 months 2nd 6 months
Total#of samples=> 7 7 7 7 7 7
* Maximum (mg/I)_> *not required *not required
* or Maximum (lb/d)=>
* or Average(mg/I)_>
* or Average Loading(1b/d)_> 0.0001 0.0001 0.0027 0.0007 32.75 25.41
%violations,(chronic SNC is>=66%)_> 0 0 0 0 0 0
%TRC violations,(SNC is>=33%)=> 0 0 0 0 0 0
(Copper -Cyanide Lead Mercury
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=> 7 7 7 7 7 7
* Maximum (mg/1)_> *not required *not required
* or Maximum (lb/d)_>
* or Average(mg/1)=>
* or Average Loading(lb/d)=> 0.0025 0.0015 0.0016 0.0031 0.0004 0.0004
%
o violations,(chronic SNC is>—66/o)=> 0 0 0 0 0 0
%TRC violations,(SNC is>=33%)_> 0 0 0 0 0 0
BDL=>Below Detection Limit mg/I=>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,I/2BDL,or zero values used. TRC=>Technical Review Criteria WWTP=>wastewater treatment plant
Chapter: PAR Guidance File name: PAliodWdhicisitelaiideddllhafittgakt skct IMB,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)
Industrial Data Summary Form IDSF Industry Name AAF Flanders
(IDSF) IUP# 003
Use separate forms for each industry/pipe Pipe# 01
Enter BDL values as < (value)
Nickel Selenium Silver ' ILine
1st 6 months 2nd 6 months 1st 6 months Itnd 6 months 1st 6 months 2nd 6 months 1st 6 months 2nd 6 months
Total #of samples=> 7 7 7 7 7 7
* Maximum (mg/I)_> *not required *not required
* or Maximum (lb/d)_>
* or Average(mg/I)=>
* or Average Loading(lb/d)_> 0.0013 0.0013 0.0004 0.0004 0.0263 0.0108
%violations,(chronic SNC is>=66%)=> 0 0 0 0 0 0
%TRC violations,(SNC is>=33 %)_> 0 0 0 0 0 0
rlhosphorus l otal ]Nitrogen
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=> 7 7 7 7
* Maximum (mg/1)_>
* or Maximum (lb/d)=>
* or Average(mg/1)=>
* or Average Loading(lb/d)_> 0.0428 0.0346 3.1343 2.1794
°A)violations,(chronic SNC is>=66%)_> N/A N/A N/A N/A
%TRC violations,(SNC is>=33 %)_> N/A N/A N/A N/A
N.
1st 6 months 2nd 6 months I st 6 months 2nd 6 months 1st 6 months 2nd 6 months 1st 6 months 2nd 6 months
Total#of samples=>
* Maximum (mg/1)=>
* 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/I=>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 he month,Qtr,or 6-month&if BDL, I/2BDL,or zero values used. TRC=>Technical Review Criteria WWTP=>wastewater treatment plant
Chapter: PAR Guidance File name: PARotifikdbeisiteliiiiateddlafttigtEttskctl?f#B,pages 12, 13, 14 Blank IDSF Form,Copy and use in your PAR Number each set for each IUP pipe-Page of

Workbook Name : State approved HWA Design 2015, Worksheet Name: AT Printed:2/14/2024, 10:10 AM
Page 1 of 4
Allocation Table Spreadsheet Instructions:
Headworks last approved: 7/19/2016 1)Applicable Values should be entered in the Heavy Bordered cells. Rest of worksheet is protected,password is
„2^
Allocation Table updated: 12/23/2016 2)Formulas are discussed in the Comprehensive Guidance,Chapter 6,Section C.
Permits last modified: 1/8/2022 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=> City Of Washington
NPDES#�> NC0020648 - - -- I
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 km alphabehcly) number ( number Industry Date Date Expires MGD gal/day m Ibs/da flim lbs/da
1 AAF Flanders 0003 0001 EPA Filter 01/08/22 _ 01/07/27 0.0450 45,000 Monitor Monitor
2 _
4 b_
5
6
7
8
A ,
0 i
Column Totals=> 0.0450 45,0001 1 01 L 0
Basis=> NPDES NPDES NPDES
MAHL from HWA(lbs/day)=> NPDES Permitted Flow=> 3.6500 8813 9121
Uncontrollable Loading(lbs/day)=> 1.8525 2178 2148
Total Allowable for Industry(MAIL)(lbs/day)=> 1.7975 6635 6974 I
Total Permitted to Industry(lbs/day)=> 0.0450 0 0
MAIL left(lbs/day)=> 1.7525 _ 6635 6974
Percent Allow.Ind.(MAIL)still available(%)_> 97.5% 100.0% 100.0%
Percent MAHL still available(%)_> 48.0% 75.3% 76.5
5 Percent MAHL(lbs/day)=> 0.1825 441 456
HWA.AT
Revised:November 2005

Workbook Name : State approved HWA Design 2015, Worksheet Name: AT Printed: 2/14/2024, 10:10 AM
Page 2 of 4
Allocation Table
Headworks last approved: 7/19/2016
Allocation Table updated: 12/23/2016
Permits last modified: 1/8/2022
POTW=> City of Washington
NPDESf > NC0020648
Ammonia Arsenic Cadmium Chromium Copper Cyanide
I Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits
1UP I INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load
Count 1 (pIcase blt alpha euc y) number number mg/1 lbs/day mg/I lbs/day mg/I lbs/day mg/I lbs/day mg/1 lbs/day mg/I lbs/day
1 AAF Flanders 0003 0001 0.0100 0.0300 0.0300 0.0100
2
3
4 ~�
5
6 1
7
8
9
10 `
Column Totals=> 0 0.0000 0.0100 0.0300 0.0300 0.0100
Sludge Sludge AS/Nit/TF Sludge
Basis=> NPDES Ceiling Ceiling inhibition Ceiling Stream Std
MARL from HWA(lbs/day)=> 954.07 0.2302 0.1752 6.2293 6.3266 4.1291
Uncontrollable Loading(lbs/day)_> 386.25 0.0463 0.0463 0.7725 0.9424 0.6334
Total Allowable for Industry(MAIL)(lbs/day)_> 567.83 0.1838 0.1289 5.4568 5.3842 3.4956
Total Permitted to Industry(lbs/day)=> 0.00 0.0000 0.0100 0.0300 0.0300 0.0100
MAIL left(lbs/day)=> 567.83 0.1838 0.1189 5.4268 5.3542 3.4856
Percent Allow.Ind.(MAIL)still available(%)=> 100.0% 100.0% 92.2% 99.5% 99.4% 99.7%
Percent MAHL still available(%)=> 59.5% 79.9% 67.8% 87.1% 84.6% 84.4%
5 Percent MAHL(lbs/day)=> 47.70 0.0115 0.0088 0.3115 0.3163 0.2065
HWA.AT
Revised:November 2005

Workbook Name : State approved HWA Design 2015, Worksheet Name: AT Printed.2/14/2024, 10:10AM
Page 3 of 4
Allocation Table
Headworks last approved: 7/19/2016
Allocation Table updated: 12/23/2016
Permits last modified: 1/8/2022
POTw=> City of Washington
NPDEstp> NC0020648
Lead Mercury Molybdenum Nickel Selenium Silver
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 alpha estIy) number number mg/1 lbs/day mg/1 lbs/day mg/1 lbs/day mg/I lbs/day mg/1 lbs/day mg/I lbs/day
1 AAF Flanders 0003 0001 0.03001 0.0300 0.0300
2
3
4
5
6
7
9 4 ��
10
Column Totals=> 0.0300 0.000000 0.0000 0.0300 0.00001 0.0300
Sludge Sludge Sludge Sludge Sludge AS/Nit/TF
Basis=> Ceiling Ceiling Ceiling Ceiling Ceiling inhibition
MAHL from HWA(lbs/day)=> 1.9019 0.079064 1.3811 0.2762 3.9526
Uncontrollable Loading(lbs/day)_> 0.7570 0.004635 0.0772 0.0772 0.0772 0.0772
Total Allowable for Industry(MAIL)(lbs/day)_> 1.1448 0.074429 0.2366 1.3039 0.1990 3.8753
Total Permitted to Industry(Ibs/day)_> 0.0300 0.000000 0.0000 0.0300 0.0000 0.0300
MAIL left(lbs/day)_> 1.1148 0.074429 0.2366 1.2739 0.1990 3.8453
Percent Allow.Ind.(MAIL)still available(%)=> 97.4% 100.0% 100.0% 97.7% 100.0% 99.2%
Percent MAHL still available(%)=> 58.6% 94.1% 75.4% 92.2% 72.0% 97.3%
5 Percent MAHL(lbs/day)=> (1.0951 0.003953 0.0157 0.0691 0.0138 0.1976
HWA.AT
Revised:November 2005

Workbook Name : State approved HWA Design 2015, Worksheet Name: AT Printed:2/14/2024, 10:10 AM
Page 4 of 4
Allocation Table
Headworks last approved: 7/19/2016
Allocation Table updated: 12/23/2016
Permits last modified: 1/8/2022
POTw=>City of Washington
NPDESfk> NC0020648
Zinc Total Nitrogen Total Phos. Oil& Grease
Industry Permit Limits Permit Limits Permit Limits Permit Limits
IUP INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load
Count I (please list aIphabetlay) number i number mg/I lbs/day mg/I lbs/day mg/I lbs/day mg/I lbs/day
1 AAF Flanders 0003 0001 0.5000
2
4
5 •
6
7
9
10
Column Totals=> 0.5000 0.001 I 0.00 0.0000
Sludge
Basis=> Ceiling Design Design
MAHL from HWA(lbs/day)_> 14.9300 1034.9940 194.82
Uncontrollable Loading(lbs/day)=> 2.7037
Total Allowable for Industry(MAIL)(lbs/day)=> 12.2262
Total Permitted to Industry(lbs/day)=> 0.5000 0.00 0.00 0.0000
MAIL left(lbs/day)_> 11.7262 0.00 0.00
Percent Allow.Ind.(MAIL)still available(%)_> 95.9
Percent MAHL still available(%)=> 78.5% 0.0% 0.0%
5 Percent MARL(lbs/day)_> 0.7465 51.75 9.7411
HWA.AT
Revised:November 2005