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Client Name Bayley <br />Client Contact Stewart Potter <br />Project Name Everett Outdoor Events Center <br />6300 Merrill Creek Parkway, Everett, WA 98203 Proposal Type Stormwater Treatment <br />Phone: (425) 349-4200 Issue Date 10/27/2025 <br />Fax: (425) 349-4890 Prepared By Liisa Doty <br />Contact Number 206 371-1693 <br />Proposal Version 1.0 <br />Assumptions Duration 12 month <br />Assumes Prevailing Wages Project Start Date 1/1/2026 est. <br />Assumes pre-treatment necessary to meet City of Everett sewer discharge limits Project Finish Date 12/31/2026 <br />Allowable discharge rates unknown, assume max 300GPM Proposal pricing is valid for 30 days from the date issued above.Budgetary <br />ROM budget, site analytics/Phase II not available, assumes contamination <br />Stormwater Treatment - Sewer Discharge 12 Months <br />Item Qty Unit Price/Unit Day Comments <br />Equipment Lease <br />1 Water Treatment Filtration System <br />Includes the items below:1 Ea $642.00 $642.00 <br />1a Detention Tanks - Open 2 Ea $40.00 $80.00 <br />1b Detention Tanks - Wier 2 Ea $42.00 $84.00 <br />1c ACIST Box (CESF) Treatment Box (trailer <br />mounted)1 Ea $200.00 $200.00 <br />1d Sand Media Filter 1 Ea $95.00 $95.00 <br />1e GAC Vessels 3 Ea $50.00 $150.00 <br />1f Flow Meter 1 Ea $3.00 $3.00 <br />1g Hose Package - Equipment Components 20 Ea $1.50 $30.00 <br />Consumables Project Estimate <br />2 Granular Activated Carbon (Virgin Acid Washed) <br />Initial Fill 6000 Lb $3.98 $23,880.00 <br />3 Sand Filtration Media 1 Ea $4,500.00 $4,500.00 <br />4 P50 and or Chitosan Treatment Chemical 12 carboy $3,200.00 $38,400.00 <br />Equipment Support Services Project Estimate <br />5 System Mobilization 1 LS $26,790.00 $26,790.00 <br />6 System Demobilization 1 LS $15,640.00 $15,640.00 <br />7 System Support 20 Hr $105.00 $2,100.00 <br />Permitting/Submittals Support Services Project Estimate <br />8 CESCL Monitoring (if required by City)216 LS $100.00 $21,600.00 <br />9 Analytical Lab Fees - City Sewer 55 Sample $200.00 $11,000.00 <br />*monthly =30 days <br />Equipment Lease - Monthly $19,260.00 <br />Items #1 <br />Consumables - Project Estimate $66,780.00 <br />Items #2-4 <br />Equipment Support - Mobe/Demob $44,530.00 <br />Items #5-6 <br />Permitting/Regulatory $32,600.00 <br />Items #8-9 <br />Stormwater to Sewer - ESTIMATED TOTAL PROJECT COST $375,030.00 12 Months <br />NPDES permit requires weekly CESCL monitoring. <br />Estimate based on 2 hours/week for 27 months to <br />satisfy the City (& Ecology?) requirements. CESCL <br />Inspections must continue until the permit is <br />terminated (when all site soils are permanently <br />stabilized). Contractor can self-perform <br />Estimated effluent sample lab fee. Assumes a weekly <br />sampling requirement for contaminants detected in <br />soils & groundwaters. Actual requirements TBD until <br />permit is issued. Billed cost +15% <br />Includes the components listed below for a complete <br />system per the specifications. Design hydraulic <br />throughput approx. 300GPM <br />$90.00 Totalizing flow meter, non re-settable as required by <br />City for sewer discharge. <br />$2,520.00 <br />Two (qty. 2) Standard steel frac tank 50'L x 8'W. open <br />top with weirs for settling post treatment pre <br />filtration. <br />$2,400.00 <br />$900.00 <br />10' sections of reinforced hose and T's to connect bag <br />filters on each side of the carbon units. Configuration <br />TBD. <br />Initial fill of sand filtration media (does not typically <br />need to be replaced on a project of this length). Vac <br />removal and disposal not included but can be arranged <br />if needed. <br />Monthly <br />$6,000.00 <br />Ecology approved Automated Treatment system. <br />Includes pump, HMI controls, inline pH, turbidity & <br />flow meters, chem dosing pumps, and optional remote <br />alert notification package. Power required 480 3-phase <br />200 A service to single strike point. <br />Estimate, quantity will depend on water quality and <br />reactivity <br />$2,850.00 One four pod sand filter vessel with minimum <br />diameter of 48". Automated backwash. <br />Two (qty. 2) Standard steel frac tank 50'L x 8'W. Open <br />top/open body for detention prior to treatment. <br />Contractor to deliver site water to these tanks. <br />Initial fill granular activated carbon vessels. Shipped in <br />1000# bags. Vac removal and disposal not included but <br />can be arranged if needed. <br />Includes system design, deliver, mobilization , <br />commissioning and client orientation. Includes <br />materials for plumbing detention tanks, wire and <br />floats. Up to 50' of discharge plumbing included. <br />Includes demob of tanks/treatment unit and freight <br />out; tank cleanout and/or system decontamination not <br />included. <br />$4,500.00 Three (qty 3) 2000 Lb. vessels in parallel. Provides <br />300GPM throughput <br />Estimate for operational support, service calls/visits. <br />Based on an average of 20hrs/month over 24 months. <br />Billed T&M portal to portal on a monthly basis. <br />Includes time for sampling if required. <br />$19,260.00 <br />Bayley(ECEC)Storm-GW-SWTS_CS_10272025 1 of 3 Client Initials ______ <br />Progressive Design-Build Contract for Everett Outdoor Event Center <br />Exhibit to Amendment No. 1 - Phase 1B Work and Fee Proposal