NC0056863_Annual Performance_20191029

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Cover Letter
Performance Annual Report
Rose Hill Waste Water
FY 2018/2019
Town of Rose Hill
Duplin County
October 21, 2019
To whom it may concern:
The Town of Rose Hill's WWTP has operated within its permitted conditions and environmental
regulations with the exceptions noted in the Performance Annual Report. Each non-compliant
issue was reported on its monthly DMR (Daily Monitoring Report).
Regards,
Ralph Clark
Interim Town Administrator
Rose Hill,NC
Town of Rose Hill
2018/2019 Annual Wastewater Treatment Report

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Performance Annual Report
FY 2018/2O19
Town of Rose Hill
Duplin County
I. General Information
Facility/System Name: Rose Hill Wastewater Treatment Plant
Responsible Entity: Town of Rose Hill
Person in Charge/Contact: William Carl Wheeler
Applicable Permit: NC 0056863
II. Performance
The treatment facility has a permitted flow of 0.45 MGD which consists of influent
screw pumps, newly installed 6", 15hp Barnes Sithe submersible pump, bar screen,
oxidation ditch, three (3) clarifiers, aerated sludge holding tank, five (5) sludge drying
beds,chlorine disinfection basin and post aeration basin with sodium bisulfate infused.
The Rose Hill Wastewater Treatment Plant's NPDES Permit will expire on January 31,
2022.
Influent enters the system by gravity or pumps/force main to the headworks of the
plant. From this unit, flow is conveyed by two screw pumps and or the back-up
submersible pump to a channel containing two bar screens. Wastewater then flows
to an oxidation ditch which provides secondary treatment utilizing the activated sludge
process. Oxidation ditch effluent flows in equal proportion to three clarifiers acting in
parallel. Flow from the clarifiers then travels through piping to a chlorine contact
chamber where disinfection is achieved by gas chlorine injection. The effluent is then
dechlorinated and discharged by gravity outfall to Reedy Creek which is classified as
Class C—Swamp waters in the Cape Fear River Basin.
Return Activated Sludge (RAS) from th,e clarifiers flows to a wet well which is then
pumped into the aerobic digester (sludge holding tank). RAS/supernate flows back to
the headworks and the process is then repeated. The waste sludge is diverted to a
sludge holding tank and/or sludge is intermittently transferred to five sludge drying
beds. The waste sludge is periodically hauled from the plant site by a contractor to a
permitted land disposal site.
Town of Rose Hill
2018/2019 Annual Wastewater Treatment Report

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A. Wastewater exceeding annual parameters of permit.
1. There weren't any NOV recorded for the calendar year of 2018
B. PRETREATMENT
The Town of Rose Hill currently monitors 2 SIU's (Significant Industrial Users) in its
Pretreatment Program. The processed water is conveyed through the collection system to the
WWTP.
III. Notification
Notification of this report will be posted on the Town's website, November 1, 2019
and printed notification at Town Hall, and will be available for review and comments
at the Rose Hill Town Hall.
IV. 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.
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William Carl Wheeler Date
Town of Rose Hill
Wastewater Treatment ORC
Town of Rose Hill
2018/2019 Annual Wastewater Treatment Report