Attachment B ‐ Partner Agencies Cost Share Summary for Construction Phase Agency Fixed Cost Share %
Estimated Cost at Time of
Construction Award
in December 2023
Estimated Cost
in June 2025
Current Estimated
Cost
City of Mountain View 62.50% $4,398,734 $4,808,985 $4,808,985 City of Palo Alto 18.24% $1,283,727 $1,403,454 $1,403,454 City of Los Altos 15.00% $1,055,696 $1,154,156 $1,154,156 Town of Los Altos Hills 4.26% $299,818 $327,780 $327,780 Subtotal: 100.00% $7,037,975 $7,694,376 $7,694,376
Agency Estimated Cost Share %*
Estimated Cost at Time of
Construction Award
in December 2023
Estimated Cost
in June 2025
Current Estimated
Cost**
City of Mountain View 39.31% $760,885 $799,365 $1,507,000 City of Palo Alto 36.66% $663,379 $745,477 $1,405,000
City of Los Altos 10.14% $206,393 $206,196 $389,000
Town of Los Altos Hills 1.98% $38,699 $40,263 $76,000
East Palo Alto Sanitary District 5.56% $104,904 $113,062 $213,000 Stanford University 6.35% $122,736 $129,127 $243,000
Subtotal: 100.00% $1,896,996 $2,033,489 $3,833,000
** Includes additional contingency of $1.8 M
Agency Overall Project Cost Share %
Estimated Total Cost at Time
of Construction Award
in December 2023
Estimated Total Cost
in June 2025
Current Estimated
Total Cost
City of Mountain View 54.79% $5,159,619 $5,608,349 $6,316,000 City of Palo Alto 24.36% $1,947,106 $2,148,931 $2,809,000 City of Los Altos 13.39% $1,262,089 $1,360,352 $1,543,000 Town of Los Altos Hills 3.50% $338,516 $368,043 $404,000 East Palo Alto Sanitary District 1.85% $104,904 $113,062 $213,000 Stanford University 2.11% $122,736 $129,127 $243,000
Total, Not‐to‐Exceed: 100.00% $8,934,970 $9,727,865 $11,528,000 * Estimate only based on FY2025 cost share (actual cost share will be determined after project completion based on wastewater flows and strength contributed by each partner in 2024, 2025, and 2026).
Table B‐2: Cost for Bypass Pumping during Construction inside The Plant Table B‐1: Project Costs during Construction (Less Bypass Pumping Inside The Plant) Table B‐3: Not‐to‐Exceed Cost for Partners during Construction (Sum of Table B‐1 and B‐2)