sonomawater.org
Clean. Reliable. Essential. Every Day.
Water Transmission System
Capital Projects & Maintenance
Update
City of Santa Rosa – City Council
February 24, 2026
David Royall
Assistant General Manager
[email protected]
Kent Gylfe
Director of Engineering
[email protected]
Delivering clean, reliable water to more
than 600,000 people
Water Contractors
Water Supply
Valley of the Moon Water District
Windsor
North Marin Water District
Marin Municipal Water District*
Cotati
Petaluma
Rohnert Park
Santa Rosa
Sonoma
Active and Recently Completed Construction Projects
Water System Construction Projects Contract Value
($)
Contract
Award Date
Date of
Completion
Ely Booster Station Hazard Mitigation $2,666,666 Mar 2022 May 2026 Cotati Tank No. 1 and Kastania Tank
Recoating
$6,450,000 Apr 2023 Jan 2025
Santa Rosa Plain Water Supply Resiliency
Project - Occidental Road Well No. 3 Drilling
$1,316,527 Aug 2023 May 2024
Santa Rosa Plain Water Supply Resiliency
Project - Sebastopol Road Well Activation
$3,102,798 Jan 2024 Dec 2025
Santa Rosa Plain Water Supply Resiliency
Project - Occidental Road Well Activation
$4,797,811 Mar 2024 Feb 2026
Cotati Tank No. 3 Recoating $6,962,100 Jan 2025 Mar 2026 Santa Rosa and Russian River-Cotati Intertie
Aqueducts Cathodic Protection Upgrade
Phase 1
$2,178,583 Jul 2025 Jun 2026
Wilfred Booster Station Resiliency $6,809,340 Dec 2025 Aug 2027 Ely Booster Station
Hazard Mitigation
• Project scope
• Replace and elevate electrical
switchgear, valve actuators, MCC,
and standby generator above 500-
yr flood elevation
• Replace sound attenuation
structures
• FEMA hazard mitigation
funding
• Electrical equipment delivered
in October
• Existing generator still needs to
be relocated and elevated
• Plans to energize switchgear in
February and close-out
contract by May 2026
Cotati # 1 and Kastania
Tank Recoating
• Project scope
• Recoating interior and exterior of
tanks
• Replacing or repairing corroded
structural beams/elements and
installing lateral bracing and
new cathodic protection systems
• Last remnants of coal tar
removed from the water
system at Kastania
• Kastania online Sep 2024
• Considerable structural
beams replaced in Cotati #1
• Cotati #1 online Nov 2024
• Project completed under
budget in Jan 2025
Cotati #3 Recoat and
Seismic Project
• 18MG tank – largest in system
• Originally installed in 1992
• Project scope
• Recoat interior/exterior of tank
• Cathodic protection
• Structural replacements and seismic
retrofit of foundation
• Modifications to tank appurtenances
• Awarded January 2025
• Progress update
• Structural improvements completed
• Exterior complete
• 100% of interior roof and shell is primed
• Foundation widening scheduled March
Occidental Rd Well #3
Drilling and Well Activation
• Drilling completed and topside
design awarded in March 2024
• All major deliveries have been
received (above-grade piping,
buildings, control panels, and I&C
package)
• Submersible pump w/Baski valve
installed end of October
• Substantial completion and startup
planned in January
• Plan, permit, test and implement
recharge components internally
(2026)
Santa Rosa Plain Wells Drought Resiliency
Project awarded $6.9M State Drought
Relief Grant
Sebastopol Rd
Well Activation
• Electrical equipment
delivered February 2025
• Construction punchlist
completed Oct and Nov
2025
• ASR pilot testing in
progress through early
2026
• ASR Cycle 2 in
progress
Santa Rosa/Cotati Aqueduct
Cathodic Protection
• Project split in 2 phases based on ease
of R/W and permitting
• Phase 1
• 8 total rectifier/anode well sites
• 8 CP stations
• Phase 2 –
• 17-21 total rectifier/anode well sites
• 21-33 CP stations
• Significant coordination with PG&E
• Phase 1 awarded July 2025
• Contractor ordering materials
• Long lead time on meter pedestals
• Phase 2 ROW and permits in progress
• Survey complete
• Award in FY27/28
Wilfred Booster Station
Resiliency
• Project includes
• New electrical building, switchgear,
and VFDs
• Replace 1st pump set
• Add 2nd pump set and piping for
reliability/resiliency
• Capable of pumping north and
south
• Switchgear prepurchased June
2024
• Awarded December 2025
Active Design Projects
Current Design Stage Planned Advertise Date
Ralphine Tank Farm Security Fence 100% design Nov 2025
Ralphine Tank No.1 Recoating &
Seismic Improvements
99% design Jan 2026
RDS Resiliency Improvements 99% design Jan 2026
Sonoma No.1 Recoating & Seismic
Improvements
90% design Mar 2026
Warm Springs Dam Hydropower 90% design Apr 2026
Wohler Road Storage Facility 60% design Dec 2026
Santa Rosa and Russian River-Cotati
Intertie Aqueducts Cathodic
Protection Upgrade Phase 2
30% design Sep 2027
Water Treatment System
Modernization – CT Compliance
50% design Dec 2026
Nexgen CMMS System
What is Nexgen?
Our Computerized Maintenance Management System for
tracking, managing, and optimizing all maintenance
operations across the organization.
January 2023 Implementation Started
12,789
Closed Work Orders
1,563
PM Schedules
17,864
Assets Managed
94,144
Labor Hours Captured
Key Features
Reporting • Asset Tracking • Work Order Management • Cross Department Alignment Departments Using Nexgen
CMMS Services
Collection System
Electrical/Instrumentation
Emergency/Safety
Facilities Services
Field Maintenance
Fleet Maintenance
Laboratory Services
Mechanical Maintenance
SCADA Services
Warehouse
Water/Wastewater
Environmental
Working to onboard
Security
Land Assets
Industrial Waste
Nexgen Tank Maintenance Program
CMMS Analysts, Engineers, Managers, and Coordinators collaborated to create a process for tracking tank maintenance and inspections.
All Tank Maintenance tracked in 10-year cycle via Nexgen Project, tying together all work orders and capturing total cost & metrics.
Contractors
Submit reports
Engineers
Receive & review
Nexgen System
Create work orders
Field Staff
Review & repair
CMMS Project View - 2022-2032 Tank Maintenance Program
Nexgen – GIS Portal
• Interactive Asset Visualization
• View assets on an integrated map with accurate
geospatial data.
• Spatial Work Order Management
• Create, view, and assign work orders directly
from the map interface.
• Mobile Integration
• Access GIS portal from field devices for on-site
work order completion.
• Update asset condition and status in real-time.
• Capture photos, notes, and inspection data
directly at the asset location.