Santa Rosa City Council
April 26, 2022

Appropriate Funding for
Disinfection Upgrade Project
1 Kimberly Zunino
Deputy Director Administration
April 26, 2022
Project
• Ultraviolet Disinfection System de-rated by Division of Drinking Water in 2012
• Capacity deficiencies under certain wet weather flows • Evaluation determined replacement most feasible
• Project delayed for further evaluation
• Project advertised January, 2022
• Final bids received March 19, 2022
• 13% over Engineer’s estimate
2 Bond Issuance
• Project estimate $70m
• Including construction, construction management and
inspection
• City issued Wastewater Revenue Bond Series 2020A
• Approved by City Council October 27, 2020
• $70m issued, December, 2020
• Subregional Construction Bond Fund
• $37.2m appropriated to date
• $32.5m fund balance remaining
3 Appropriation
• Construction costs substantially increased
• Low bid without contingency
• Construction only
• $68,109,000
• Additional appropriations required for contract award • $32.5m remaining fund balance
• $10m reserves for future contingencies
• Project award by BPU expected in May
4 Recommendation
It is recommended by Santa Rosa Water, that the
Council, by resolution, appropriate $32,581,129.61
from the Subregional Construction Bond Fund and
$10,000,000 from the Local Wastewater Fund
Reserve for Future Contingencies to the Disinfection
Upgrade account so sufficient funding is available for
the construction contract award.
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