2015/12/23 Council Agenda Packet

EVERETT CITY COUNCIL AGENDA ITEM COVER SHEET 2. PROJECT TITLE: Professional Services Briefing COUNCIL BILL# Agreement with HDR Proposed Action Originating Department Public Works Engineering Inc. for the Pre- Consent Contact Person John Nottingham design Study of the Final Action Phone Number (425)257-8872 Effluent North Pump Station First Reading FOR AGENDA OF December 23, 2015 and Chlorination Building Second Reading Third Reading Public Hearing Budget Advisory Initialed by: Department Head • CAA Council President PP Location Preceding Action Attachments Department(s) Approval Water Pollution Control None Professional Services Public Works, Legal Facility Agreement, Scope of Services (Exhibit A) Amount Budgeted $10,850,000 Fund 339 Expenditure Required $356,061 WO# 3614 Budget Remaining $10,493,939 Additional Required -0- DETAILED SUMMARY STATEMENT: The Water Pollution Control Facility(WPCF) Final Effluent North Pump Station(FEN PS) discharges treated effluent to the Snohomish River from the northwest corner of the treatment ponds. The pump station was designed for an ultimate capacity of 60 million gallons per day(MGD). However, due to hydraulic limitations in the delivery system to the station and in the layout of the station itself,the currently capacity is just over 40 MGD. Pre-design study work will include a hydraulic analysis of the flows through the treatment pond system, into the pump station and out to the river to ensure the complete system is capable of producing a discharge of 60 MGD. The study will also include the preliminary design of the replacement of the existing Chlorine Building. This building was constructed on wooden piles in 1970. The pilings have reached the end of their useful life and are subsiding due to deterioration. The existing building is also undersized and does not meet current codes in regard to storing treatment chemicals. RECO IMLNDxTIO Lii_ ouCsiRci ofC1.i