WQ0017791_Performance Annual Report_20230905

City of Goldsboro
Water Reclamation Facility
PERFORMANCE ANNUAL_.
RFPORI_
July 2022 to June 2023
Justin Bauer
Jbauer @GoldsboroNC.gov

Table of Contents
General Information------ --------- ------ —_--- —�______�___________ I
Description of Wastewater Treatment Process
Performance
Notification
Certification
F6
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General Information: City of Goldsboro Water Reclamation Facility
Date:
July 2022 to June 2023
Responsible Entity: Robert Sherman/Public Utilities Director
Operator in Responsible Charge/Contact: Justin Bauer/Superintendent
Applicable Permits: NCO023949 -Water Reclamation FaciliV/Wetlands
W00017791 - Reuse/Reclaimed Water

Description of City of Goldsboro Water Reclamation Facility: (Outfall 001)
Wastewater is routed through the mechanical filter screen at the Westbrook Road Pump
Station. Large solids in the flow are caught on the screen, and are automatically raked off
into a screw conveyor. The conveyor dewaters the solids as they are discharged into a
dumpster adjacent to the structure. The solids are hauled from the pump station on a
regular basis for disposal at the landfill.
Wastewater is pumped to the treatment plant from Westbrook Road Pump Station and is
discharged into the Influent Structure. The influent flow is measured through a Parshall
flume with flow rate indicated on the local instrument panel. The flow rate signal is
transmitted to the SCADA system in the WRF Operations Building.
During high influent flows, part or all of the influent flow can be diverted from the Influent
Structure and be diverted to Equalization Pond No. 1 for temporary storage. Opening the
equalization gate allows control of the amount of flow temporarily diverted to the
equalization pond. Once influent flows return to normal, stored wastewater is returned to
the Influent Structure by operation of the Equalization Pond Pumps.
A concrete diverter separates the influent flow from the Parshall flume and the influent
weirs equally into two grit chambers. The grit chambers are aerated, creating a turbulence
that keeps organic matter in suspension while allowing heavier inorganic matter to settle to
the bottom of the tank. The heavier solids (sand, coffee grounds, cinders etc.) are pumped
by airlift to Equalization Pond # 1 for disposal. The removal of grit helps reduce wear on
downstream process units caused by the abrasive nature of the material removed.
The wastewater then flows through four smaller Parshall flumes, which evenly separates
the flow to the four Aerator/Clarifier Splitter Boxes, located adjacent to the Aeration/
Clarifier Basins. Depending on which particular process is being utilized, fiberglass stop
plates in the Aeration/Clarifier Basin/Clarifier Splitter Boxes are used to split the flow and
discharge into three different areas of the Aeration Basin. These areas are designated as
Main Channel Aeration Zone, Main Channel Anoxic Zone, and BPR Chambers. These
areas are controlled to create Aerobic, Anoxic, or Anaerobic environments.

A diffused air system is utilized for transferring oxygen to the wastewater. Net -works of
membrane diffusers are installed within the main aeration channel. When air is diffused
through the network, millions of tine air bubbles rise to the surface and transfer oxygen to
the contents of the tank.
The Biological Phosphorus Removal
(BPR) process was developed to
remove phosphorus through modifying
environmental conditions in biological
treatment systems. BPR is
accomplished by exposing organisms in
the system to anaerobic, anoxic, and
aerobic conditions in it manner that
enhances growth of the types of
organisms capable of storing large
amounts of phosphorus in their cells.
Subsequent removal of those cells from
the wastewater also removes the stored
phosphorus and can produce lo►►
concentrations of that element in the
wastewater without resorting to
chemical treatment.
J
The Biological Nitrogen Removal process
also takes place in the Aeration basins.
This process works hand in hand with the
Biological Phosphorus Removal process.
This is accomplished by exposing the
organisms to aerobic and anoxic
conditions in the Aeration basins, which
promotes Nitrification and
Den itrification, ►►hick in turn removes the
Nitrogen from the ►►aste►►ater.
1]
4

The Aeration basins
discharge to a Clarifier
influent control box and
_
then from the control box
r■
to the center of the
Clarifier basin. As the
wastewater flows toward
the Clarifier effluent
weirs, the solids in the
flow settle to the bottom
of the tank. The Clarifier
liquid flows over the
effluent weirs for
discharge to the Effluent
10
Control Box. The settled
sludge is removed from
the Clarifiers by
ot
hydraulic differential
created by the RAS Pump
Station. A portion of the
activated sludge is
.�
returned to the aeration
~" `� "' ►•:-.-'
basins and the remaining
portion is removed from
�.
,.,
the system as waste
s,
activated sludge (WAS).
WAS is wasted to a one million gallon (MG) Biosolids Storage Tank
prior to dewatering
and composting the dewatered biosolids with chipped vegetative waste creating a "Class A
Exceptional Quality" compost.
The Clarifier wastewater flows to the Traveling
Bridge Sand Filter from the Clarifier Effluent.
The Sand Filter is a continuous rapid -rate down
flow gravity filter. This type of sand media filter
enhances solids removal, reduces turbidity,
removes chemical precipitate, reduces toxic
chemicals and reduces BOD, COD, and TOC
related to suspended solids. The influent floods
the filter bed via the multiple inlet ports from
the influent channel. The influent flows
downward through the granular media and
porous plates. Filtrate passes through the
effluent/backwash port and into the channel. A
traveling bridge contains and supports the
backwash hood, which moves across the filter
bed and automatically backwashes each cell
while the remaining cells continue filtering the
influent.

2
The sand filter effluent bypasses the
existing chlorine contact chamber and is
disinfected with ultraviolet light (Sodium
Hypochlorite and Sodium Bisulfite are used
as an emergency back-up for disinfection
and dechlorination if ever the ultraviolet
light system fails). The disinfected effluent
then passes through a Parshall flume and a
cascade step aerator, then it is discharged
by gravity to the Neuse River at Pipe 001.
An effluent flood pump station pumps to
the Neuse River during high plant and
river flow conditions.

Reclaimed Water and Constructed Wetlands (Outfall 002)
The City of Goldsboro operates. a
water reclamation facility for treating
wastewater with a permit to discharge
treated effluent directly to the Neuse
River. In an effort to reduce the
amount of nutrients discharged to the
river, the City has initiated projects
finding alternate uses for the highly
treated effluent from the WRF.
A Reclaimed Water (non -potable) -.
Pump Station pumps reclaimed water - -- T
for three separate uses: for wash
water on the belt filter presses in the
Dewatering Building; for irrigation
purposes; and to the constructed
wetlands. After the reclaimed water
is used to clean belt filter press, it is
returned to the head of the plant for
more treatment. Some of the reclaimed water is pumped to an off -site storage tank for
irrigation of the city's golf course and 114-acres of farmlands. There is also a portion of
reclaimed water that is sent to 40-acres of constructed wetlands for further "polishing"
treatment through a series of cells containing aquatic plants. The effluent from the
constructed wetlands is discharged back to the river at Pipe 002. All reclaimed water
receives ultraviolet light and chlorine for disinfection. The constructed wetlands effluent is
de -chlorinated with Sodium Bisulfate prior to discharge.
Wastewater Puma Stations
The City has twenty-six (26)
wastewater pump stations to pump
wastewater collected by gravity
sewer lines throughout the City of
Goldsboro to the Water
Reclamation Facility for treatment.
These pump stations consist of
motors, pumps, and pump controls.
When wet wells begin to fill with
wastewater, the pump controls
turn the pumps on to move the
wastewater towards the Water
Reclamation Facility. All city pump
stations are monitored from the
Water Reclamation Facility by a
telemetry system and/or dialer
system.

Performance: (July 1, 2021 to June 30, 2022)
1 0- II "A ai�
July 2022 Compliant
August 2022 Compliant
September 2022 Compliant
October 2022 Compliant
November 2022 Compliant
December 2022 Compliant
January 2023 Compliant
February 2023 Compliant
March 2023 Compliant
April 2023 Compliant
May 2023 Compliant
June 2023 Compliant
Notification:
Pine 002 (Constructed Wetlands) Reclaimed Wastewater
July 2022 Compliant
August 2022 Compliant
September 2022 Compliant
October 2022 Compliant
November 2022 Compliant
December 2022 Compliant
January 2023 Compliant
February 2023 Compliant
March 2023 Compliant
April 2023 Compliant
May 2023 Compliant
June 2023 Compliant
July 2022 Compliant
August 2022 Compliant
September 2022 Compliant
October 2022 Compliant
November 2022 Compliant
December 2022 Compliant
January 2023 Compliant
February 2023 Compliant
March 2023 Compliant
April 2023 Compliant
May 2023 Compliant
June 2023 Compliant
The Performance Annual Report for the Water Reclamation Facility along with the Performance
Annual Report for the Collection System will be made available to the public at the Public Works
Complex office and at the City of Goldsboro Water Reclamation Facility. The City is notifying
citizens of the availability of these Performance Annual Reports by sending a printed message on
the water bills. In addition, the Performance Annual Report is available on the City website.
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Certification:
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 the users or customers of
the named system and that those users have been notified of its availability.
7/31/2023
Justin Bauer Date
Responsible Person in Charge
Superintendent
City of Goldsboro Water Reclamation Facility

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Performance Annual Report
General Information
Facility/System Name: City of Goldsboro Sanitary Sewer Collection System
Responsible Entity: City of Goldsboro- Richard E. A. Fletcher III, Public Works Director
Person in Charge/Contact: Kenneth Spencer
Applicable Permil(s): Goldsboro Waste Treatment — NC0023949.
Collection Permit — WQCS 00023
Description of Collection System or Treatment Process:
Gravity Flow Collection System
II. Performance
Text Summary of System Performance, July 1, 2022, to June 30, 2023
There were zero (0) reportable sanitary sewer discharges, and (1) non reportable sanitary
sewer discharge during the period of July 1, 2022, to June 30, 2023.
1) On April 14, 2023, a non -reportable spill of approximately 150 gallons was
reported at 139 Miller Chapel Rd. from a leaking air release valve. The valve was
replaced, and the area was cleaned up and lime put down. The sewer was
contained in a low area and did not contact the waters of the State.
List (by month) any violations of the permit conditions or other environmental
regulations. The monthly list should include discussion of any environmental impacts
and corrective measures taken to address the violations.
III. Notification
State how this report has been made available to availability users or customers of the
system and how those users have been notified of its availability.
The following notice was printed on customer's utility billings:
The Sanitary sewer annual performance report may be viewed at the City of
Goldsboro Public Works Department, 1601 N. Ciingman St., Phone [phone], and
at our website, www.eoldsborone.gov.
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TV. Certification
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 users or
customers of the named system and that those users have been notified of its availability.
- � Ki, J�
Responsible )Verson
—
Kenneth Spencer
Title Collections Operations Manager.
Entity: City of Goldsboro
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Date