HomeMy WebLinkAboutWQ0020239_Monitoring - 12-2021_20220314 P
CHART, ..
`G�L
r�
3w
.11N II
♦ ORT oP
H CAR
TOWN OF HERTFORD
Collections System and Wastewater Treatment Plant Performance Report
2021
I. General Information:
Facility Name: Town of Hertford Collections System
Town of Hertford WWTP 1
Responsible Entity: Town of Hertford
Contact Person: Janice McKenzie Cole
Interim Town Manager
Applicable Permits: NPDES NC0021894
Reclaimed Water Permit WQ0021289
Collection System WQCS00209
Land Application of Residuals WQ0020239
A. Description of Process:
The Town of Hertford wastewater collection system is gravity flowed to 11 lift stations
then gravity flowed to 9 duplex pumping stations then through force mains to the
Wastewater Treatment Plant.
The town also treats the wastewater from the Town of Winfall. That wastewater flows
by gravity to six pumping stations then through a force main to the treatment plant.
The treatment facility is a 0.700 MGD oxidation ditch activated sludge process.The facility
combines physical processes with biological processes to treat the wastewater.These include
automatic screens to remove trash and grit and activated sludge oxidation ditches to remove
biodegradable solids and reduce the ammonia concentration.The plant also has two secondary
clarifiers to remove solids to be returned back into the plant or to be disposed of.There is an
aerobic digester to treat the solids removed and a storage tank to hold them until they can be
hauled to permitted fields.Then the water passes through tertiary disc filters which treat the
effluent to a high quality. Chlorine is added to disinfect the water,and then sulfur dioxide is
added to remove the chlorine.The treated water is then sent to the Perquimans River or to the
town's spray field.The facility produces a high quality effluent to help protect the environment.
II. Performance Summary:
A. A. Collections System:
The collections system had four reportable spills this year
• Grubb Street,February
• Edenton Road Street,February
• Edenton Road Street,August
• Highway 17,May
B. Treatment Facility:
The treatment facility had one Notice of Violation(NOV)for flow in excess of the permitted
limit of 0.700 MGD(million gallons per day)and two Notice of Deficiency(NOD)for flow
exceedance.
➢ In January an NOD was issued for flow in excess of permitted limit
➢ In February an NOD was issued for flow in excess of permitted limit
➢ In June an NOV was issued for flow in excess of permitted limit
All of these incidents and violations were reported to the appropriate agencies in accordance with state
regulations.
III. Notification:
Copies of this report are available in the following locations:
➢ Town Office
➢ Public Works Building
➢ Town of Hertford Water Plant
➢ Town of Hertford Wastewater Treatment Plant
Availability of this report will be published in the Perquimans Weekly newspaper
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 customers of the Town of Hertford and those
users have been notified of its availability.
J "anice McKenzie Cole Interim Town Manager
Town of Hertford March 4,2022