Opening of Qualifications - WWTP CSO Tank RFQ Guaranteed Savings Contract Proj No. 121-071-A - Bowen Enigneering

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CSO EQ Basin Project Preliminary Summary of Sequence • Mobilize, install SWPPP, reroute pedestrian path (to be done by Owner), clear and grub • Dewatering install and initial drawdown • Install utility relocates • Pump station and diversion structure • Outfall structure • CSO 045 EQ Basin • Pumps and mechanical completion • Control building and generator • Bypass and tie-in 96” effluent pipe and manhole • Restoration and demobilize Manpower • 15-25: Operators, Laborers, Carpenters, Pipefitters • Superintendent Key Local Subcontractors • Sweney Electric • Dutchland (Bowen recommends due to space limitations) Equipment Preferences (All Bowen-Owned) • 120 TN Manitowoc Crane• CAT 349 Style Excavator• CAT 930 Wheel Loader• CAT 308 Mini Excavator• CAT 279 Skid Steer• CZM EK 125 Bowen Dewatering Drill Rig• CAT 336 Excavator with Sheeting Hammer Attachments• ICE B4 Sheeting Hammer and Power Pack• Bowen Fleet Dewatering Casings and Pumps Challenges and Risks • Dewatering operations will require a site-specific plan • Maintaining plant flow through bypass operations and utilizing existing site piping • Construction laydown and work zone space • Safely accommodating the public trail Opportunities • Reuse of existing 96” line for normal flow pipeline to eliminate new 96” effluent and manhole - $100-150K savings (see orange markup on following page) • Alternate routing of new 96” effluent line to reduce bypass pumping duration - $100-150K savings (see dark blue markup on following page) • Reorient 96” diversion structure effluent and maintain existing outfall structure - $500-600K savings (see teal markup on following page) • Reduce footprint of excavation of pump station and diversion structure - $150-250K savings (see red markup on following page) • Reorient control building and generator to eliminate 48” reroute - $100-150K savings (see red markup on following page) • Allow abandonment of existing outfall stucture in lieu of complete demolition - $100-150K savings • Allow use of permanent pumps for bypassing pumping operation - $100-150K savings • The above items could reduce the project schedule up to 2 months depending on value engineering items implemented • Bowen will provide a site-specific plan for self-performing dewatering operations based on the recent Clarifier 4 and 5 Project. This will allow the best control of dewatering and allow any unused dewatering costs to be returned to South Bend. • Leverage Bowen’s relationship with local unions • Bowen’s ability and experience of self-performing the installation of the Dutchland Tank will save project costs and reduce schedule • Bowen has other items that could possibly impact the project schedule and cost, in addition to the above items Recent Relevant Experience • Indianapolis Deep Rock Tunnel Fall Creek CSO Phase 2 and 3 • West Lafayette DeHart CSO Tunnel Storage • Lebanon, IN Booster Station and Dutchland Tank • Lafayette Greenbush CSO Tank Project • IAA Seerley Basin Contract 1A Deicing Tank Project EXECUTION PLAN