WQCS00021_Annual Report_20240903

WILSON RECEIVED
SEP 032024
NORTH CAROLINA
NCDEQ/DWR/NPDES
August 28, 2024
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
System Performance Annual Report
NCDEQ—DWR—Water Quality Permitting Section
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
Subject: 2024 Wastewater Collection and Treatment System Report
City of Wilson
NPDES Permit: NC0023906
Reclaimed Water Utilization Permit: WQ0018709
Wastewater Collection System Permit: WQCS00021
Dear Sir or Madam:
Enclosed are six copies of the City of Wilson's 2024 Wastewater Collection and Treatment System
Report. The reports will be mailed to customers during August 2024.This report is also posted on-line at
the City of Wilson's official website and can be found at: www.wilsonnc.org/wwannualreport or
www.wilsonnc.org/wastewaterannualreport.
The report is based on fiscal year July 1, 2023 —June 30, 2024.The report is submitted as required by the
N.C. Clean Water Act of 1999.
Please contact me at(252) 399-2491 or via email at [e-mail] if you need additional
information.
41111.1*Iek
4,4„...
Jimmy P,i dgen
Water ' clams on Manager
cc: Bill Bass,Director of Public Works—City of Wilson
Kyle Manning,Assistant Director of Public Works—City of Wilson
Brooks Bunn, Water Infrastructure Manager—City of Wilson
Regional Supervisor,DWR Raleigh Regional Office- Surface Water Protection
CITY OF WILSON
INCORPORATED 1849
WATER RECLAMATION DIVISION : PO BOX IC WILSON.NORTH CAROLINA 27E94-0010 I [phone] ( [phone]
EQUAL OPPORTUNITY EMPLOYER I AFFIRMATIVE ACTION EMPLOYER

HOMINY CREEK WATER RECLAMATION FACILITY (WRF) E5 'a'*
MISSION 95 3
STATEMENT The WRF is located in Wilson at 3100 Stantonsburg Road. It is a state-of-the-art regional treatment plant that processes wastewater for approxi- a MIMI
mately 20,300 metered customers and a service population of approximately 52,000. The City of Wilson also treats wastewater from the Town of
"Protecting our Environment and Black Creek,the Town of Lucama,the Town of Saratoga,and the Town of Sims. -_--., k�
Water Quality,through Teamwork The term water reclamation defines the treatment or processing of wastewater to make it reusable with specific treatment reliability. Reclaimed $.
and Excellent Service, water must also comply with very stringent water quality criteria.The term water reuse defines the use of treated wastewater for beneficial uses,
such as agricultural irrigation and industrial cooling.The City of Wilson is committed to reusing reclaimed water in areas that drinking water is not ""g ' l.•..1
now and for future generations." needed such as irrigation water for Wedgewood Golf Course,the Burt Gillette Athletic Complex and industrial process/cooling water.The reclaimed se,
water system is part of the City's water conservation plan. I
This report provides information concerning the City of Wilson's wastewater collection and treatment system performance forJuly 1,2023 to June 30,2024 as required in the North Carolina Clean Water Act of 1999(House Bill 1160).
If you have any questions about the information contained in this report,or would like to learn more about your wastewater collection system or the Hominy Creek Water Reclamation Facility,please call(252)399-2492.
Table Definitions&Key SANITARY SEWER OVERFLOWS (SSOs)
<-less than Sanitary sewer overflows(SS0s)occur when untreated sewage is discharged into f
>-greater than the environment prior to reaching the sewer treatment facilities. These typically
occur at manholes,pump stations,or broken sewer pipes. Infiltration/inflow(I/I)
MGD(Million Gallons per Day)-a unit of measurement for flow volume. is unwanted water that enters the sewer collection system through deteriorating %
NTU(Nephelometric Turbidity Units)-a unit of measurement for turbidity.The lower the value,the clearer older pipes,leaking manholes,illegal connections such as roof drains,etc. During • t' . '''''':,,,.1,'''':-
the water. heavyrains,pipes can become overloaded from I/I and cause SSOs.Pipe stoppages -
PP _ffi_... s,f
PPM(Parts per Million)-a unit of measurement.Parts per million compares to 1 minute in 2 years. caused by fats,oils and grease can also lead to SSOs. Replacing and rehabilitating
PPB(Parts per Billion) a unit of measurement.Parts per billion compares to 1 minute in 2,000 years. these lines and manholes reduces I/I into the sanitary sewer system,thus protecting the public health,improving treatment
SU(Standard Units) a unit of measurement for plant efficiency and reducing system maintenance. Generators provide emergency back-up power for pump stations and
pH. help prevent SSOs.
Ammonia-one of several forms of nitrogen that exist in aquatic environments.Excessive ammonia can cause toxic During fiscal year 2023 2024,the City of Wilson experienced fifteen(15)reportable SSOs and one(1)reportable discharge of
effects to aquatic life.Ammonia is measured in PPM. reuse water.The WRF treated 2.9 billion gallons of wastewater during this period.
BOD(Biochemical Oxygen Demand)-a required test that determines the amount of oxygen required by micro-
organisms to consume pollutants.BOD is measured in PPM. July 17,2023 November 13,2023 March 7,2024
Chronic Toxicity-a required test used to determine the potential effects of treated wastewater discharged into 701 Christman Street SW 2007 Black Creek Road SE 2658Tilghman Road N
the receiving stream.The test ensures that treated wastewater discharged into surface waters does not negatively Total:140 gallons Total:300 gallons Total:48,000 gallons
impact aquatic ecosystems. Cause:Pipe blockage due to grease Cause:Pipe blockage due to roots Cause:Inflow&infiltration during
DO(Dissolved Oxygen)-a required test used to determine the amount of oxygen that is present in water.It is a August 6,2023 November 21,2023 severe rain event
direct indicator of an aquatic resource's ability to support aquatic life.DO is measured in PPM. 601 Sunnyside Lane W 2301 Stantonsburg Road SE March 28,2024
FC(Fecal Coliform)-a required test used to determine the presence of disease causing organisms.FC are harmless Total:14,400 gallons Total:450 gallons 2658 Tilghman Road N
but are used as indicators of other organisms(if FC are present others may be present).FC is measured as number of Cause:Pipe blockage due to grease • Cause:Pipe blockage due to debris Total:29,100 gallons
colonies per 100 milliliters of sample. and debris Cause:Inflow&infiltration during
November 22,2023
pH-a required test used to determine the hydrogen ion concentration in water.It is used to indicate basicity or August 29,2023 500 Dale Street SW severe rain event
acidity of a solution on a scale of 0 to 14,with pH 7 being neutral. 4508 Country Club Drive N Total:100 gallons March 30,2024
TN(Total Nitrogen)-a required test used to determine the sum of the different forms of nitrogen found in water, Total:2,000 gallons Cause:Pipe blockage due to grease 2106 Tilghman Road N
including nitrate,nitrite and ammonia.Nitrogen is a critical nutrient required for all life but elevated concentrations Cause:Pipe failure Total:800 gallons
can result in excessive growth of algae and aquatic plants.TN is measured in PPM. December 18,2023 Cause:Pipe blockage due to grease
TP(Total Phosphorus)-a required test used to determine all the different forms of phosphorus found in water. September 27,2023 622 New Street S
Phosphorus is a critical nutrient required for all life but elevated concentrations can result in excessive growth of 1305 Westwood Avenue W Total:200 gallons June 19,2024
algae and aquatic plants.TP is measured in PPM. Total:500 gallons Cause:Pipe blockage due to debris 1500 U.S.Hwy 301 N
Cause:Pipe blockage due to grease February6 2024 Total:51,300 gallons(Reuse Water)
TRC(Total Residual Chlorine)-a required test used to determine the total amount of remaining chlorine present , Cause:Pipe failure
in water.Chlorine is added to destroy or deactivate disease-producing microorganisms.Excess residual chlorine may October 20,2023 2311 Wilco Boulevard S
cause adverse effects to aquatic life.TRC is measured in PPB. Intersection of Blakewood Street E Total:600 gallons June 26,2024
TSS(Total Suspended Solids)—a required test that measures the amount of suspended solids in a sample.TSS &Fikewood Street E Cause:Pipe blockage due to grease 606Trinity Drive W
are measured in arts PPM. Total:300 gallons Total:600 gallons
P Cause:Pipe blockage due to grease March 2,2024 Cause:Pipe blockage due to grease
Turbidity-a required test that measures clarity of water.It is used to indicate water quality and filtration 601 Dewey Street W
effectiveness.Turbidity is measured in NTU. Total:500 gallons
NPDES PERMIT COMPLIANCE(NC0023906) Cause:Pipe blockage due to grease
The WRF was compliant with all NPDES permit limits this year. Customers who observe a sanitary sewer overflow should report these as emergencies to the
City of Wilson's Unified Communications Center at(252)399-2424. ,
PLANT PERFORMANCE Clientes que observan un desbordamiento del drenaje sanitrario, deben reporter
Pollutant Concentration Pollutant Concentration estas situaciones de emergencia al centro de comunicaciones unificadas de la Ciudad de
Ammonia Nitrogen PPM Flow Million Gallons per Day(MGD) Wilson,al telefono(252)399-2424.
Average 0.05 Average 7.49 WHAT THE CUSTOMER CAN DO TO HELP
Permit Limit 1.0/3.0(summer-monthly/weekly) Permit Limit 14.00(monthly)
2.0/6.0(winter-monthly/weekly) pH SU In order to help the City of Wilson continue a high standard of water quality and protection of the environment,
Biochemical Oxygen Demand PPM Minimum-Maximum 6.4-7.9
please follow these simple steps:
Average 0.6 Permit Limit Within 6.0—9.0(daily) DO NOT use the toilet as a wastebasket—place a wastebasket in each bathroom for the disposal of solid waste,
Permit Limit 5.0/7.5(summer monthly/weekly) g disposable diapers,condoms,and personal hygiene products that DO NOT belong in the sewer system.
Total Nitrogen Lbs/yr
10.0/15.0(winter-monthly/weekly) Pounds Discharged 43,845 DO NOT use the sink to dispose of food scraps—place food scraps in the garbage for disposal with solid wastes,
Chronic Toxicity Permit Limit 157,886 or better yet,start a compost pile.
Test Performed QuarterlyPasseda
llTotal Phosphorus PPM STOP THE CLOG.
Permit Limit Pass or Fail Average 0.13 The majority of sewer backups and overflows caused by fats,oils,and grease(FOG)originate in residential areas.
Dissolved Oxygen PPM Permit Limit 2.00(quarterly) You can help prevent clogs by learning about FOG and how to dispose of it.By following three simple steps,you can
Average 9.2 Total Residual Chlorine PPB make sure your pipes keep flowing properly.What should you do?It's easy!
Permit Limit >7.0(daily) Average 0.16
Fecal Coliform Colonies/100 milliliters(ml)of sample Permit Limit 18.0(daily) 2
Average 3 (5 CAN IT! \ SCRAPE IT! TRASH IT!
Total Suspended Solids PPM
Permit Limit 200/400(monthly/weekly) Average 0.1 Once cooled,pour leftover oils and Before washing,scrape out fats,oils Put fatty and greasy food scraps
Permit Limit 30.0/45.0(monthly/weekly) grease into a sturdy container,like and grease residuals from pots,pans in the garbage,not the drain.
an empty coffee can or glass jar. and dishes.
REUSE PERMIT COMPLIANCE(WQ0018709)
The WRF was compliant with all Reuse permit limits this year.
PLANT PERFORMANCE =M".-'
. ' DO NOT FLUSH! ..c
Pollutant Concentration Pollutant Concentration -
Ammonia Nitrogen PPM Total Suspended Solids PPM Flushing paper towels and other garbage down the toilet wastes water and can create sewer backups and SSOs.The related
Average 0.07 Average <0.01 costs associated with these SSOs can be passed on to ratepayers.Even if the label reads"flushable';you are still safer and more
Permit Limit 4.0/6.0(monthly/daily) Permit Limit 5.0/10.0(monthly/daily)
environmentally correct to place the item in a trashcan.
The following is a partial list of items that should not be flushed:
Biochemical Oxygen Demand PPM Turbidity NTU x Baby wipes,diapers x Candy and other x Aquarium gravel or x Underwear
Average 2.3 Average 0.45 x Cigarette butts food wrappers kitty litter x Disposable toilet brushes
Permit Limit 10.0/15.0(monthly/daily) Permit Limit 10.0(daily) x Clothinglabels x Rubber items such as
x Rags and towels x Tissues(nose tissues,
Fecal Coliform Colonies/100 milliliters(ml)of sample x Cotton swabs,medicated x Cleaning sponges latex gloves all brands)
Average <1 wipes(all brands) x Toys x Sanitary napkins
Permit Limit 14/25(monthly/daily) x Syringes x Plastic items x Hair
PROTECTING THE NEUSE RIVER FOR MORE WATER QUALITY INFORMATION AFFILIATIONS
The Lower Neuse River Basin Association,Inc.(LNBA)and the Neuse River Compliance Association,Inc., City ofWilson—WaterResources North Carolina Department of The City of Wilson Water Reclamation Division
(NRCA)are 501(c)(3)non-profit corporations comprised of municipalities and industries located in the Neuse [phone] Environmental Quality is affiliated with the following organizations:
River Basin.The mission of these organizations is to monitor and preserve the waters of the Neuse River and www.wilsonnc.org/water-resources [phone] •Water Environment Federation
Neuse River estuary through innovative and cost-effective wastewater treatment and reduction strategies. U.S.Environmental Protection Agency www.deq.nc.gov •American Water Works Association
The NRCA group is composed of 28 wastewater treatment facilities located in the Neuse River Basin.NRCA www.epa.gov U.S.Geological Survey •N.C.Water Quality Association
was issued North Carolina's first basin-wide NPDES permit for nitrogen control January 1,2003 and was N.C.Environmental Education www•usgs.gov •N.C.One Water
reissued in 2008,2013,and 2018.The group was given a mandate to reduce their Total Nitrogen discharge www.eenorthcarolina.org Water's Worth It •N.C.Water Works Association
by 30%.Through the combined efforts of its entire membership,the NRCA exceeded the mandated 30% Lower Neuse Basin Association www.watersworthit.org •N.C.Pretreatment Consortium
nitrogen reduction by removing over 58%of their nitrogen loading to the Neuse River estuary in 2023. www.lnba.net Sound Rivers •N.C.Rural Water Association
American Rivers www.soundrivers.org •Lower Neuse Basin Association
I The City of Wilson is proud to be a charter member of both the LNBA and NRCA. www.americanrivers.org •Neuse River Compliance Association
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WHAT TO DO WHEN THE DRAINS STOP FLOWING?
Figure A Home
When wastewater (sewer) stops draining
in your home, it is a very serious problem
that can be considered a plumbing emer- Property Lin
Clean-Out
gency.Since the water has no place to go,
it starts to come back up into the house-
hold plumbing.
Public Right-of-Way House
When wastewater is not draining properly, Easement Clean-Out
determine if the drainage problem is only Street '-- � �., ==
affecting one fixture, or multiple fixtures.
If it is only one fixture,then the blockage is limmemo mo "
probably related to the fixture itself,or the Sewer ei_ Public Right-of-Way Portion Private Property Portion
interior plumbing near the fixture. If you Main of Sewer Lateral of Sewer Lateral
cannot clear the blockage yourself then
*Not standard on all properties
you should seek a plumbing professional.
If multiple drains in the home are not flow- . '- - " .�,
inproperly,then have a block- Whom should Igure B; !' 4.P 4,.,, What will the City do
9 youmay 3: r x . - : "^
age in the sewer drain that flows from the I call first? - . Wit, . when called?
home to the City's sewer main.When you > ".i ♦ r i
have a clogged sewer drain, you should If you have multiple fixtures that are , ,, If you think there is a blockage after the
not use any of the plumbing in the home not draining properly, try to locate your ‘.. property line cleanout, contact the City
until the stoppage is cleared. - ` of Wilson's Unified Communications Cen-
property line cleanout (see Figure B). It •; 'z:.
is typically located a few feet from the
' `� ,.,; ter at(252) 399-2424.A service crew will
�`„ be dispatched to the sewer lines
Who is responsible for edge of your property near the street. '.-, .x�, pinspect
clearing the sewer line
It should be flush with the ground, but aV1. and they will clear any blockages that
are within the City's area of responsibil-
blockage? may be covered by landscaping. Some ity at no cost to you. If they determine
homes may not have a property line clea- a!yp:ir•�; '
1� " the blockage is prior to the property line
nowt. If you can locate the cleanout, try r a'u t
Responsibility for the maintenance of to remove the cover of the cleanout. If r? Property#1n£cleanqut'�a cleanout,you will be notified so you can
sewer piping from the home to the sewer ,,.."• .,w _ contact a plumbing professional.
main connection is shared between the you feel any pressure, stop immediate
property owner and the City of Wilson. ly and contact the City of Wilson. If you Collection System Maintenance and Projects Completed:
The property owner is responsible for the remove the cover and you see standing •34.3 miles of pipe cleaned
piping from home to the property line water in the pipe,or it is trying to flow up • 18.2 miles of pipe inspected
cleanout. The City of Wilson maintains through the clean out,contact the City of •4,764 feet of sewer taps inspected(approximately 160 taps)
the sewer line beginning at the proper- Wilson. If water appears to be flowing •5,989 feet of pipe replaced
ty line cleanout. Please see Figure A to freely at this point, then the stoppage is •
46 sewer services replaced
understand your sewer pipe maintenance prior to the property line cleanout and is
• 15 grease blockages cleared from sewer mains
responsibilities. the property owner's responsibility.