City of Poway Water Infrastructure
Improvement Program
(PWIIP)
February 3, 2026
Program Update
Agenda
Water Infrastructure
Improvement Program
Update
Twelve Month Look Ahead
City of Poway – Water Infrastructure Improvement Program
Clearwell
Replacement – In
Construction
Treated Water
Facilities – In Design
PWIIP - Three Phase Program
Clearwell
Bypass – In Operation
City of Poway – Water Infrastructure Improvement Program
Clearwell Bypass Project
• Temporary bypass tanks for storage
• Temporary pump station required to
pump water to the tanks
• Temporary 24” above-ground piping and
pressure reducing station
• Permanent 36” below-ground pipeline
• Construction completed under budget
($7.6 million) and in operation since
November 2022
City of Poway – Water Infrastructure Improvement Program Clearwell
Replacement – In
Construction
Treated Water
Facilities – In Design
Three Phase Program
Clearwell
Bypass – In Operation
City of Poway – Water Infrastructure Improvement Program
Clearwell Replacement Project
• Replace the 1964 lined and
covered clearwell with two concrete tanks
• Re-locate storm drains around new tanks
• Replace inlet, outlet and drain piping and
valves
• Construct two new 4 MG concrete tanks
• Removal of the temporary bypass facilities
& restoration of the softball field
Status
• $31.6 million construction contract
• Construction is roughly 95% complete
• Commissioning late Spring 2026
City of Poway – Water Infrastructure Improvement Program
City of Poway – Water Infrastructure Improvement Program Inlet Pipelines
City of Poway – Water Infrastructure Improvement Program Prestressing
City of Poway – Water Infrastructure Improvement Program Shotcrete Overcoat
City of Poway – Water Infrastructure Improvement Program Overflow and Air Gap
City of Poway – Water Infrastructure Improvement Program Interior
City of Poway – Water Infrastructure Improvement Program Storm Drain Extension
and Biofiltration Basin
Clearwell Replacement Next Steps
• Complete installation of Inlet and Outlet
pipes
• Install stairs, access hatches,
appurtenances
• Testing and disinfection
• Commissioning – Spring 2026
• Removal of the temporary bypass facilities
& restoration of the softball field – Fall 2026
City of Poway – Water Infrastructure Improvement Program
Clearwell
Replacement – In
Construction
Treated Water
Facilities – In Design
Three Phase Program
Clearwell
Bypass – In Operation
City of Poway – Water Infrastructure Improvement Program
Treated Water Facilities
• Provides Poway with a source of treated
water (redundant supply)
• Provides operational flexibility and
enhances ability to sell water to Ramona
• Enables future WTP maintenance and
rehabilitation
• Related Projects: Emergency
Interconnection Nos. 1 and 2 with the City
of San Diego (Avenida La Valencia and
Poway Road/Springhurst Drive)
City of Poway – Water Infrastructure Improvement Program
Treated Water Facilities
Current Status
• Negotiating agreement with SDCWA for
POW-6 FCF (to be designed and
constructed by SDCWA at no cost to
Poway)
• Completing CEQA Mitigated Negative
Declaration/CUP – July 2026
• Completing final design for Pump Station
No. 16, Espola Road Pipeline, and
Redundant Pipeline in Lake Poway Road –
Fall 2026
• $1 million in funding recommended by
Representative Issa in recently approved
CJS-E&W Interior minibus spending bill
City of Poway – Water Infrastructure Improvement Program
Program Cost Summary
City of Poway – Water Infrastructure Improvement Program Project Cost
Clearwell Bypass Project
Initial Projected Cost $10,200,000
Actual Cost $9,300,000
Variance ($900,000)
Clearwell Replacement Project
Initial Projected Cost $39,400,000
Estimated Actual Cost $37,400,000
Estimated Variance ($2,000,000)
Treated Water Facilities Project
Total Current Projected Cost $49,370,000
Anticipated Rep. Darrell Issa Grant ($1,000,000)
POW-6 FCF (SDCWA Funded) ($7,000,000)
Anticipated Ramona MWD Contribution for
Espola Road Pipeline
($1,500,000)
Revised Projected Cost (Poway Only) $39,870,000
Current Projected Program Cost: $86,570,000
Twelve Month Look Ahead
• Clearwell Commissioning/Bypass Retirement late
Spring 2026
• Emergency Interconnection No. 1 at Avenida La
Valencia call for bids Spring 2026
• TWF select CM firm Spring 2026
• TWF CEQA completion Summer 2026
• TWF Design completion Fall 2026
• Emergency Interconnection No. 2 at Poway
Rd/Springhurst call for bids Fall 2026
• Lake Poway Softball Field Restoration Fall 2026
• TWF Construction Start Early 2027
City of Poway – Water Infrastructure Improvement Program
Questions?
City of Poway – Water Infrastructure Improvement Program