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Table 4 Alternative 2A/2B Capital Improvement Program (2 New Wells)
<br />Groundwater Supply Alternatives Analysis
<br />City of Pleasanton
<br />PRELIMINARY
<br />Cost Sharing
<br />Baseline Estimated Capital
<br />Constr.Constr.Improv.
<br />Number Zone Improv.Cost Cost3 Cost Users Users Users Users
<br />(in)(ft)($)($)($)($)($)($)($)
<br />Future
<br />Itemized Cost Estimate % Benefit
<br />Improvement Pressure Type of
<br />Alignment Limits
<br />Diam.Length Unit Cost Pipe Cost
<br />Pipeline and Appurtenances Costs
<br />Priority4/
<br />Construction Trigger
<br />Existing Future Existing
<br />W-3 Lower Well Tennis Park New 2,500 gpm well located in Tennis Park on Valley Avenue
<br />s/w of Hopyard Road 2,500 gpm 3,500,000 3,500,000 4,550,000 5,920,000 Shut down of Wells 5 and 6 100%0%5,920,000 0
<br />W-4 Lower Well Hansen Park New 2,500 gpm well located in Hansen Park on Hansen Drive
<br />and Calle Ricardo 2,500 gpm 3,500,000 3,500,000 4,550,000 5,920,000 Shut down of Wells 5 and 6 100%0%5,920,000 0
<br />Subtotal - Wells 11,840,000 11,840,000 0
<br />T-1 510 Tank Tank 510 Site Construct an additional 0.25 MG storage tank 0.25 674,949 674,949 877,434 2,140,000 Existing Deficiency 99%1%2,118,600 21,400
<br />T-2 770 Tank Tank 770 Site Construct an additional 0.15 MG storage tank 0.15 404,969 404,969 526,460 1,680,000 Existing Deficiency 89%11%1,495,200 184,800
<br />T-3 Lower Tank Lower Zone Construct an additional 4.5 MG storage tank (Location TBD)4.5 6,985,722 6,985,722 9,081,439 12,810,000 Approx. 250 units
<br />(Lower Zone)0%100%0 12,810,000
<br />Subtotal - Storage 16,630,000 3,613,800 13,016,200
<br />Subtotal - Existing Pipeline Deficiencies 1,650,000 1,640,400 9,600
<br />Subtotal - Pipelines for Supply Changes 6,680,000 5,650,300 1,029,700
<br />Subtotal - Fire Flow Deficiencies 61,664,000 58,284,000 3,380,000
<br />18,570,000 Priority A Fire Flow - Critical 16,070,000 2,500,000
<br />9,430,000 Priority B Fire Flow - Essential 8,915,000 515,000
<br />9,880,000 Priority C Fire Flow - Desired 9,595,000 285,000
<br />23,784,000 Kilkare-Sunol Fire Flow (Priority A) - Critical 23,704,000 80,000
<br />Subtotal - Future Pipeline Improvements 5,560,000 0 5,560,000
<br />Subtotal - Turnouts 4,520,000 3,782,800 1,039,600
<br />Subtotal - Wells 11,840,000 11,840,000 0
<br />Subtotal - Storage 16,630,000 3,613,800 13,016,200
<br />City-Wide Total 108,544,000 84,811,300 24,035,100
<br />10/6/2025
<br />Note:
<br />1. Baseline construction costs plus 30% to account for unforeseen events and unknown conditions.
<br />2. Estimated construction cost plus 30% to cover other costs including: engineering design, project administration (developer and City staff), construction management and inspection, and legal costs.
<br />3. Cost estimates are based on the Engineering News Record (ENR) construction cost index (CCI) of 13320 for the 20 cities for April 2023.
<br />5. The storage tank costs include an additional $1M for land acquisition
<br />Storage Improvements5
<br />Capital Improvement Program Summary
<br />4. Fire Flow Priorities:
<br /> Priority A: Modeled flows are 30% below the fire flow requirement.
<br /> Priority B: Modeled flows are between 15% to 30% below of the fire flow requirement.
<br /> Priority C: Modeled flows are within 15% of the fire flow requirement.
<br /> Priority K-S: These are fire flow deficiencies in the Kilkare/Sunol areas and are a sub-set of Priority A
<br />All "T" improvements are not applicable to
<br />groundwater supply projects.
<br />Docusign Envelope ID: A2CEC78C-F0FD-4D4D-9F39-237EDFC2492E
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