NC0086011_Annual Performance_20220901 (2)

I
Winston-Salem/Forsyth County y
Liti 1 ities
Water•Wastewater•Solid Waste
Administration,P.O.Box 2511,Winston-Salem,NC 27102
336-727-8000• wsfcutilities.org
RECEIVED
August 24, 2022 S E P 01 2022
Jeff Poupart, Supervisor NCDEQIDWRINPDES
North Carolina Department of Environmental Quality
PERCS Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: FY 2021-2022 System Performance Report
Winston-Salem/Forsyth County Utilities
Dear Mr. Poupart,
Enclosed you will find our annual performance report for Winston-Salem/Forsyth County Utilities i
wastewater collection and treatment system as mandated by the North Carolina Clean Water Act of
1999.This report covers the period from July 1, 2021 to June 30, 2022.
Our report was made available to the public by publishing a Notice of Availability in the August 26, 2022
Winston-Salem Journal. A copy of that legal ad is enclosed and the Affidavit of Publication will be
emailed upon receipt. Copies of this report can also be obtained at the Forsyth County Central Library,
from our office or City Link.The report is posted on our website at cityofws.org/wwreports.
Please call me at 336-747-7315 if you have any questions.
Sincerely,
, COWt l'Ahe‘--- --
Courtney L. Driver, P.E.
Utilities Director
Cc: Michael Stover, P.E., Assistant Utilities Director-Operations
Frank Crump, Wastewater Treatment Superintendent
Kenny Atkins, Utilities Field Operations Manager
Antonio Martinez, ORC
File
GIZMOCity Council:Mayor Allen Joines;Denise D.Adams,Mayor Pro Tempore,North Ward;Barbara Hanes Burke,Northeast Ward;Robert C.Clark,West Ward;
John C.Larson,South Ward;Jeff Macintosh,Northwest Ward;Kevin Mundy,Southwest Ward;Annette Scippio,East Ward;lames Taylor,Jr.,Southeast Ward;
City Manager:Lee D.Garrity
County Commissioners:David R.Plyler,Chair;Don Martin,Vice Chair;Fleming El-Amin;Ted Kaplan;Richard V.Linville;Tonya McDaniel;Gloria D.Whisenhunt;
Call 311 or 336-727-8000 County Manager:Dudley Watts,Jr.
Winston-Salem/Forsyth County Utility Commission:L.Wesley Curtis,Jr.,Chair;Chris Parker,Vice Chair;Simpson O.Brown,Jr.;Harold Eustache;Torn Griffin;
[e-mail] Yvonne H.Hines;Hugh W.Jernigan;Duane Long;Charles Wilson;Allan Younger

NOTICE OF AVAILABILITY
Annual Performance Report for Wastewater Collection &Treatment Systems
Fiscal Year 2021-2022
Effective October 1, 1999, all wastewater facilities that collect or treat wastewater must
notify the public of wastewater spills. The second part to this rule requires the owner or
operator of the wastewater treatment/collection systems to provide an annual report to
its users, customers and the North Carolina Department of Environmental Quality. This
report summarizes the performance of the treatment works/collection systems and
states the extent to which any terms of its permit, federal laws, or any state laws,
regulations or rules related to the protection of water quality have been violated.
The Fiscal Year 2021-2022 Annual Performance Report for WSFC Utilities Wastewater
Collection and Treatment Systems will be available to the public at the front desk of
Stuart Municipal Building, 100 E. First St., at the Forsyth County Central Library, by
calling City Link 336-727-8000 and at cityofws.org/wwreports.
Winston-Salem Journal:Aug.26, 2022
Leal Notices
NOTICE OF AVAILABILITY
Annual Performance Report for
Wastewater Collection& Ti
Treatment Systems
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The Fiscal Year 2021-2022 An- 1:
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WSJ: August 26,2022.

Winston-Salem/Forsyth County
Utilities
Water•Wastewater•Solid Waste
Wastewater Collection&Treatment System—Performance Report for Fiscal Year 2021-2022
This report is published annually and released to our customers in accordance with the requirements of the
North Carolina Clean Water Act of 1999 and provides information on the Publicly Operated Treatment Works
(POTW) and Collection System operated by Winston-Salem/Forsyth County Utilities (WSFC Utilities). It covers
the period of July 1, 2021 through June 30, 2022.
WSFC Utilities operates two wastewater treatment plants with a combined treatment capacity of 51 million
gallons per day.The wastewater collection system includes 1,790 miles of sewer lines and 45 lift stations. During
the period covered by this report,a total of 12.43 billion gallons of wastewater was collected and treated at
these facilities. WSFC Utilities staff work hard to meet or exceed the requirements mandated by the North
Carolina Clean Water Act and thi;requirements of the National Pollutant Discharge Elimination System (NPDES)
permits that regulate the actual operation of the treatment plants,the disposal of our biosolids, and the
operation and maintenance of our collection system. We continue to send staff to Collection and Wastewater
Treatment Plant Operator schools to obtain the appropriate certification and training.
The wastewater collection system operates under NPDES Permit WQCS00003.The Archie Elledge Wastewater
Treatment Plant(WWTP)operates under NPDES Permit NC0037834 and the Muddy Creek WWTP operates
under NPDES Permit NC0050342.The treatment and disposal of residual biosolids produced by the plants is
accomplished by anaerobic digestion followed by processing in a biosolids drying facility at the Archie Elledge
WWTP under Permit WQ0029804.The biosolids dryer facility produced 8,136 dry tons of pelletized biosolids
during FY 2021-2022 which were beneficially applied to farmland.The water system has three additional NPDES
permits, one associated with each water treatment plant.Swann Water Treatment Plant(WTP)operates under
General Permit NCG590003,Thomas WTP under Permit NC0079821 and Neilson WTP under Permit NC0086011.
All three water plant permits operated within compliance of their permit conditions during this performance
period.The treatment process at the water treatment plants generates a Class-A residual that is land applied
under Permit WQ0031314. During this compliance period, a total of 1,647.48 dry tons of residuals were hauled
from Neilson WTP and applied on farmland in Davidson County.A total of 64.8 dry tons were hauled from
Swann WTP and applied on farmland in Yadkin County.Thomas WTP hauled 457.54 dry tons of residuals to the
city-owned and operated Hanes Mill Road Landfill.
Archie Elledge and Muddy Creek WWTPs and the Biosolids Dryer Facility reported no violations of their permit
limits during the reporting period.The two wastewater treatment plants met the minimum requirements
imposed by the State of North Carolina's Division of Water Resources by a safety factor of 4.75.The bar chart in
Appendix B shows the performance of the wastewater treatment plants during this period.Approximately
13,565 tons of regulated pollutants were removed by the treatment processes during the period of July 1, 2021
through June 30, 2022.
The remainder of this document includes details about monitoring system discharges and overflows from our
wastewater collection system and preventative maintenance programs established to prevent potential
problems. WSFC Utilities'goal is to have zero sanitary sewer overflows (SSO)from the wastewater collection
system. However,during the last fiscal year, 55 events totaling 0.00013%of the wastewater collected was
spilled/overflowed from the sanitary sewer system.Appendix A and D of this report list a detailed summary of
plant and collection system overflows reported in FY 2021-2022.
Since the passage of the North Carolina Clean Water Act in 1999 the total annual SSOs have been tracked
against the baseline year of FY 1998-1999 (Appendix C). Diligence by maintenance personnel performing
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preventative maintenance continued to be a major factor contributing to reducing SSOs since the FY 1998-1999
baseline year. In fact, FY 2021-2022 has resulted in the lowest reported SSO year(55)since reporting began in
1999. Our success in reducing SSOs also includes the incorporative use of Geographic Information Systems(GIS)
with our computer maintenance management system, Cityworks.Together,GIS and Cityworks can display
historical work order information which allows our crews to respond to areas where issues have repeatedly
occurred. Management uses this same data to help develop future capital projects to alleviate the cause of
repeat issues.
WSFC Utilities completed Year 6 of the Collection System Improvement Program, which helps prioritize and
schedule our collection system preventative maintenance measures based on physical inspections from the
field. Inspections ranging from routine cleaning to closed-circuit television (CCTV) are tracked in Cityworks. To
collect more uniform data and to make crews more efficient,we have also upgraded both of our CCTV camera
systems to WinCan,which integrates with Cityworks. Essentially all the information we collect from the field is
seamlessly entered into our recently upgraded preventative maintenance scheduler tool (FreeFlowH20) and a
decision-making process is streamlined for cleaning, rehabilitation and/or replacement of our collection system
infrastructure. By having these new systems in place, our field personnel can identify and submit information
directly to the supervisor with a few keystrokes.This information also helps City Link convey issues to the
customer in a timely manner.
Major causes of SSO occurrences in FY 2021-2022 were attributed to grease deposits, debris accumulation and
root intrusion. Because of this,funding was approved for FY 2021-2022 to provide for more preventative
cleaning of the collection system.This effort has reduced the occurrences of SSOs by preemptively targeting
areas prone to the three major causes. In FY 2021-2022, WSFC Utilities cleaned more than 320 miles,which is
18%of the 1,790-mile gravity wastewater collection system. In-house personnel cleaned 99 miles of publicly
owned/maintained sewer lines and contracted crews cleaned 225 miles at a cost of$1,312,825. Of the 324 miles
that were cleaned, 74%or approximately 240 miles were proactively cleaned by in-house and contracted crews.
For FY 2022-2023,the goal is to continue to increase the portion of proactive cleaning and to exceed our overall
internal goal by cleaning 18%of the entire gravity collection system.
In 2003, a Grease Interceptor Ordinance was adopted which regulates the operation and maintenance of
residential, commercial, and industrial grease trap interceptors.This ordinance alone has been effective in
reducing the amount of grease related SSOs since its adoption. In 2003,the total number of SSOs spiked at 269;
the following year that number dropped by nearly 30 SSOs and the count of SSOs has made a steady decline
since that time. While this ordinance has been effective,further assistance from the public is necessary to
completely solve this problem. Over the past year, WSFU Utilities personnel have conducted outreach following
sewer backups to educate customers in those hot spot areas on the proper disposal of cooking grease,fats and
other oils. In addition, maintenance personnel have been proactively cleaning the publicly maintained portions
of sewer connections to keep sewer main lines clean and free of grease as well as tree roots and debris.
During FY 2021-2022, WSFC Utilities continued its proactive efforts toward the reduction of SSOs by spending
more than $6.8 million on the rehabilitation of 38,290 feet of gravity sewer mains, 101 manholes, and 172
service laterals.The rehabilitated sewer mains primarily ranged in size from 6"to 42".The mains were
rehabilitated by means of pipe bursting, cured-in-place lining of pipes,total replacement, or a combination of
these methods.The enhanced condition of rehabilitated sewer mains and manholes not only contributed to the
reduction of SSOs, but also aided in the reduction of infiltration and inflow by decreasing and/or eliminating
access points for storm water runoff and groundwater to enter the wastewater collection system. In addition,
WSFC Utilities performed CCTV inspection of 301,276 linear feet of sewer mains. Staff and contractors also
improved access to the collection system through inspection and mowing/clearing of approximately 25 miles of
easements.
As always, customer involvement plays an important role in the reduction of SSOs. WSFC Utilities continues the
Can the Grease and No Wipes in Pipes campaigns to educate the public on the hazards of dumping fats, oils or
grease(FOG) in drains and flushing wipes and other non-biodegradable products down the toilet. Some of our
2

outreach efforts are detailed below. No Wipes in Pipes helps customers of all ages realize the "bottom line" is
you should only flush the Four Ps: Pee, Poop, Puke& (toilet) Paper. See cityofws.org/nowipes and
cityofws.org/grease.
•September 16, 2021: City of Winston-Salem University presentation included our FOG and wipes information,
plus outdoor demos of the CCTV system and jet-vac truck.
•November-December 2021: Water-sewer Did you know?bill message: Grease and so-called flushable wipes
cause costly raw sewage backups in your home.Avoid the mess and expense:CAN the GREASE and NO WIPES
in PIPES. Only flush the four Ps:Pee, Poop, Puke and(toilet)Paper! Visit cityofws.org/grease and
cityofws.org/nowipes for details.
• November 22, 2021: Can the Grease was featured at a turkey fry demonstration by the Winston-Salem Fire
Department with coverage from all television news outlets in the market.
•December 22, 2021: Can the Grease and No Wipes in Pipes news release, social media and web news.
•April 23, 2022: Earth Day Fair provided nonstop engagement for 8,000+attendees with FOG and wipes
literature, activity sheets and spin-to-win prizes like Can the Grease branded spatulas,can lids, magnet clips.
•May-June 2022: Colorful Can the Grease flyer in English and Spanish inserted in water-sewer bill.
•June 18, 2022:Juneteenth Festival educated an estimated 6,500 guests about the expensive mess and hazards
created by grease and wipes. Prize wheel engagement included Can the Grease promo items as prizes.
Our English-Spanish Plumber Responsibilities sheet, Good Neighbor Policy brochure and webpages at
cityofws.org/gnp help educate the public about the benefits of a backwater valve device.
Lastly, staff continued to actively identify and plan for projects to reduce SSOs, as well as infiltration and inflow
into the wastewater collection system. In addition to the benefits of reducing SSO volume and the reduction of
water getting into the system, these projects have the added benefit of decreasing the amount of wastewater
treated, thereby reducing overall operating costs.
To report a wastewater spill, please contact the City of Winston-Salem 24-hour customer service line (City Link)
at 336-727-8000. For questions regarding our programs or additional information regarding this report, please
contact Gale Ketteler, Utilities Public Information Officer at 336-747-7414 or [e-mail]. Copies of
this report may be requested from City Link at 336-727-8000.This report is also available at the Forsyth County
Central Library and at citvofws.org/wwreports.
Certification of Accuracy:
I certify under penalty of law that this report is complete and accurate to the best of my knowledge. I further certify that
this report has been made available to all persons or concerns using the publicly owned wastewater collection and
treatment facilities under the direction of Winston-Salem/Forsyth County Utilities and that those persons or concerns have
been notified as to the availability of this report.
COW1/4))661
Date:8/24/2022
Courtney L. Driver, P.E.
Utilities Director
Winston-Salem/Forsyth County Utilities
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Appendix A:
Wastewater Treatment Plant and Pump Station Overflow/Spill Information—FY 2021-2022
Volume of Number of NPDES
Flow Discharged from Number of Overflow Permit Violations
Month/Year Overflows, at Treatment
Treatment Plants,gallons Events Reported gallons
Plants
1,058,030,000 0 0 0
July 2021
1,063,300,000 0 0 0
Aug. 2021
976,500,000 0 0 0
Sept. 2021
993,860,000 1 500 0
Oct. 2021
951,000,000 0 0 0
Nov. 2021
991,070,000 0 0 0
Dec. 2021
1,122,200,000 0 0 0
Jan. 2022
1,058,960,000 0 0 0
Feb. 2022
1,188,850,000 0 0 0
Match 2022
1,044,300,000 0 0 0
April 2022
1,048,420,000 0 0 0
• May 2022
•
932,400,000 0 0 0
June 2022
ANNUAL TOTAL 12,428,890,000 1 500 0
Notes:
10/5/2021 Archie Elledge WWTP spilled 500 gallons from a non-potable water line break into Salem Creek.
a

P
Appendix B:
Wastewater Treatment Efficiency FY 2021-22
Tons of Regulated Pollutants
16,000
14,254
14,000
12,000
10,000
cS 8,000
Fo
6,000
4,000 3,272
2,000 689
0
IN Received at Treatment Plants
Allowed in Discharge by Division of Water Quality
® Actually Discharged by Treatment Plants
5

Annual Performance Summary of Wastewater Collection System
SSO w/> SSO w/>15,000 Total SSO
Total No. Notice of 1,000 gal in Total SSO
Fiscal Year of SSOs Violations Surface gal in Surface Volume(gal) Wastewater Percentage
waters waters Collected*(gal.) of Total
2021-2022
Annual Total 55 9 14 2 163,396 12,428,880,000 0.00013%
2020-2021 74 23 15 5 2,251,327 13,873,680,000 0.0016%
Annual Total
2019-2020 77 10 11 7 431,819 13,373,470,000 0.0032%
Annual Total
2018-2019 70 13 10 1 94,583 13,762,950,000 0.0007%
Annual Total
2017-2018 65 12 15 0 64,892 11,323,130,000 0.0006%
Annual Total
2016-2017
Annual Total 62 12 14 0 35,774 11,707,700,000 0.0003%
2015-2016 73 12 15 0 157,949 12,083,570,000 0.0013%
Annual Total
2014-2015 86 49 12 1 127,405 10,753,560,000 0.0012%
Annual Total
2013-2014 82 30 15 0 106,384 11,840,630,000 0.0009%
Annual Total
2012-2013 111 38 13 2 144,549 11,331,870,000 0.0013%
Annual Total
2011-2012 117 61 10 0 65,273 11,289,980,000 0.0006%
Annual Total
2010-2011 109 76 15 0 95,342 11,328,410,000 0.0008%
Annual Total
2009-2010 106 77 16 3 1,840,134 12,291,330,000 0.0150%
Annual Total
2008-2009 117 88 20 0 85,433 11,607,400,000 0.0007%
Annual Total
2007-2008 129 N/A 31 1 142,412 11,473,040,000 0.0012%
Annual Total
2006-2007 161 N/A 40 8 571,946 12,475,820,000 0.0046%
Annual Total
2005-2006 159 N/A 46 3 317,585 12,182,250,000 0.0026%
Annual Total
2004-2005 211 N/A 49 3 246,290 12,621,450,000 0.0020%
Annual Total
2003-2004 241 N/A 69 2 322,050 12,822,200,000 0.0025%
Annual Total
2002-2003 269 N/A 116 16 2,305,175 13,408,980,000 0.0172%
Annual Total
2001-2002 228 N/A 70 1 338,806 11,467,900,000 0.0030%
Annual Total
2000-2001 193 N/A 84 4 533,108 11,930,700,000 0.0045%
Annual Total
1999-2000 189 N/A 119 9 1,154,350 12,289,000,000 0.0094%
Annual Total
*This is the total volume of treated wastewater discharged from the plants but is assumed to be equal to what
was collected.
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Appendix D:
Details of Wastewater Collection System—FY 2021-2022
Month/Year Probable Cause of Total SSO SSO Volume in Location of 550
SSO Volume(gal) Surface waters
July 2021 _
7/6/2021 Debris 2,925 2,925 4810 Kernersville Rd.
7/9/2021 Debris 4500 450 5355 North Cherry St.
7/13/2021 Roots 5 0 4532 South Main St
7/26/2021 Roots 12,427 0 2350 Cragmore Ct.
Total for July 4 19,857 3,375
AUGUST 2021 11.111.111.11111.11111111111111111.11.1111
8/3/2021 Debris 34,125 8,531 1301 Bethabara Pointe Blvd.
8/3/2021 Debris 33 0 2630 Oakwood Dr.
8/11/2021 Debris 351 50 616 Indineer Dr.
8/16/2021 Debris 70 0 712 Dunleith Ave.
8/23/2021 Debris 399 399 119 Briarwood Court
8/31/2021 Pipe Failure 750 750 2687 Fairlawn Dr.
Total for August 6 35,728 9,730
SEPTEMBER 2021
9/16/2021 Pipe Failure 150 150 1025 North Main St.
Total for September 1 150 150
OCTOBER 2021
10/3/2021, Roots 150 150 2925 Pioneer Trail
10/5/2021 Pipe Failure 59 0 222 4th St.
10/6/2021 Pipe Failure 300 300 290 East Fourth St.
10/23/2021 Debris 5 0 2495 Waterbury St.
10/24/2021 Residential Grease 1,400 1,400 1768 Gyro Rd.
10/29/2021 _ Debris 322 _ 322 201 North Chestnut St.
Total for October 6 2,236 2,172
NOVEMBER 2021 EMMMIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIMIMII
11/13/2021 Debris 20 0 243 Water Lilly Cir.
Total for November 1 20 0
DECEMBER 2021
12/3/2021 Pipe Failure 3,875 3,875 880 Powell St.
12/3/2021 Roots 38 38 275 Linville Rd.
12/8/2021 Pipe Failure 200 200 801 South Main St.
12/15/2021 Residential Grease 240 0 5525 Reynolda Rd.
12/26/2021 Debris 337 20 2675 Knob Hill Dr.
Total for December 5 4,690 4,133
JANUARY 2022
1/7/2022 Pipe Failure 20 0 728 Granville Dr.
1/12/2022 Debris 5,250 5,250 230 Town Run Lane
1/24/2022 Pipe Failure 277 277 1153 West Academy St.
8

Probable Cause of Total SSO SSO Volume in Location of SSO
Month/Year SSO Volume (gal) Surface waters
1/24/2022 Debris 4,050 4,050 4796 Shelwyn Dr.
1/25/2022 Debris 50 50 3313 Stratford Rd. 1
1/26/2022 Bypass Failure(Contractor) 50 50 3201 Lowery St.
Total for January 6 9,697 9,677
FEBRUARY 2022
2/7/2022 Roots 150 150 3200 Ridgewood Place Dr.
2/20/2022 Debris 100 100 1326 West First St.
Total for February 2 250 250
MARCH 2022
3/3/2022 Debris 100 100 2098 Frontis Plaza Blvd.
3/4/2022 Pipe Failure 30 30 725 West Mountain St.
3/4/2022 Roots 50 50 4117 Shadetree Lane
3/9/2022 Residential Grease 100 0 229 Century Blvd.
3/9/2022 Debris 75 75 2701 Gilmer Ave.
3/14/2022 Debris 53,200 53,200 521 Northridge Pkwy.
3/17/2022 Debris 7,875 7,875 3261 Robinhood Rd.
A 3/21/2022 Debris 4050 0 4224 Old Greensboro Rd.
3/21/2022 Roots 58 58 2607 Waughtown St
3/28/2022 Pipe Failure 150 150 2895 Willow Cove Dr.
3/29/2022 Debris 50 50 327 Broad St.
Total for March 11 65,738 61,588
APRIL 2022
4/1/2022 Debris 2,500 2,500 4404 Rockland Dr.
4/15/2022 Roots 4,125 4,125 3664 Winding Creek Way
4/15/2022 Residential Grease 300 300 801 Gray Ave.
4/18/2022 Residential Grese 2,250 2,250 3793 Hartford St.
4/18/2022 Residential Grease 225 0 4559 Ogburn Ave.
4/20/2022 Pipe Failure 103 103 302 Oakhurst St.
4/20/2022 Roots 20 20 1809 Virginia Rd.
4/20/2022 Other(Flapper Valve) 14,400 7,500 4448 Winterberry Ct.
Total for April 8 23,923 23,673
MAY 2022
5/2/2022 Roots 500 250 1230 Alder St.
5/5/2022 Roots 175 175 3520 Phafftown Rd.
5/6/2022 Commercial Grease 225 225 1265 Hwy 66 South
5/15/2022 Roots 192 192 4080 Bethania Station Rd.
5/23/2022 Pipe Failure 15 0 2834 Bethania Rd
Total for May 5 1,107 1,092
JUNE 2021
Total for June 0 0 0
9

Month/Year Probable Cause of Total SSO SSO Volume in Location of SSO
SSO Volume (gal) Surface waters
Winston-Salem/Forsyth
2021-2022 55 163,396 115,840 County
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