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Supplemental Treatment and Lake Discharge Completion Report for the SCA WTP

The Honeywell Sediment Containment Area (SCA) Water Treatment Plant (WTP) normally discharges treated effluent to the Metropolitan Syracuse Wastewater Treatment Facility (Metro) for supplemental treatment, priorto discharge to Onondaga Lake. The design average and peak discharge flows are 6.5 and 10 million gallons perday (MGD), respectively. During wet weather events, the hydraulic capacity of the Metro facility may be
reached. This periodically results in Metro being unable to receive flow from the SCA WTP.In order to maximize operational up‐time for future dredging operations, provisions (supplemental treatment)have been made to facilitate discharge of up to 6.5 MGD of SCA WTP effluent to Onondaga Lake. A permit fordischarge to Onondaga Lake via Outfall 15B is included as Attachment 1 to this document. This discharge onlyoccurs during wet weather shutdowns or during periods of testing at Metro during wet weather shutdowns.

Supplemental Treatment and Lake Discharge Completion Report

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