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WWTP Clarifier 1, Z, and 3 Upgrades 0 ARCADIS <br />Preliminary Summary of Phase I Sequence <br />• Mobilize erosion control and utility relocates <br />• Install perimeter dewatering system <br />• Isolate influent channel using existing stop logs <br />• Drain tanks and perform field investigation <br />• Demolition of existing clarifier equipment <br />• Install interior tank dewatering system <br />• Perform interior tank demolition and piling install <br />• Install underslab 36" and 14" pipe <br />• Install interior cast in place concrete <br />• Perform cracks, spall, and concrete anchor repairs <br />• Install clarifier equipment, weirs, and baffles <br />• Install influent gates and meters <br />• Sequence selective demolition and perform clarifier startup <br />• Restoration, punchlist, demobilization <br />Manpower <br />• 10-15: Operators, Laborers, Carpenters, Pipefitters <br />• Superintendent <br />Equipment Preferences (All Bowen -Owned) <br />• 120 TN Manitowoc Crane <br />• CAT 930 Wheel Loader <br />• CAT 308 Mini Excavator <br />• CAT 279 Skid Steer <br />• CAT 1055 Telehandler <br />• CZM EK 125 Bowen Dewatering Drill Rig <br />• Bowen Fleet Dewatering Casings and Pumps <br />Key Local Subcontractors <br />• Sweney Electric <br />Challenges and Risks <br />• Dewatering <br />• 36" pipe installation and piling <br />• Maintaining flow of plant operations <br />• Existing utility and pile location <br />Opportunities <br />• Bowen's past experience and relationship with staff and <br />knowledge of existing plant <br />• Work with local union trades <br />• Bowen will provide a site -specific plan for self -performing <br />dewatering operations based on the recent Clarifier 4 and 5 <br />Project. This plan will minimize dewatering risk during interior <br />piping and piling installation <br />• Bowen will coordinate with plant personnel for the installation of <br />the existing stop logs to isolate the existing influent final clarifier <br />channel <br />• Bowen will utilize GPR to locate existing pile and existing plant <br />utilities to facilitate the dewatering and piling installations <br />• Utilize shared resources of manpower and equipment between <br />final clarifier and CSO project (i.e. Crane, Dewatering Rig, <br />Material Handling Equipment) <br />Preliminary VE Concepts <br />• Evaluate alternative piling installations <br />• All contingency, including allocated dewatering and operational <br />risk, will be returned to the Owner when not utilized <br />Recent Relevant Experience <br />• South Bend, IN - Final Clarifiers 4 and 5 <br />• Westville, IN, WWTP GSC - 2 New Clarifiers <br />• Peotone, IL - 2 New Clarifiers <br />• Momence, IL - 1 New Clarifier <br />• Lowell, IN, WTP - 2 New Clarifiers <br />• Battleground, IN - 2 New Clarifiers <br />• 50+ Clarifiers in Past 10 Years Around Central Indiana <br />